/* roulang page: index */
:root {
            --bg-primary: #0B1A26;
            --bg-panel: #122634;
            --bg-panel-light: #162D3D;
            --brand-primary: #00D4C6;
            --brand-secondary: #3AF08A;
            --brand-gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --accent-amber: #FFA94D;
            --danger-red: #FF5D75;
            --text-primary: #F2F7FA;
            --text-secondary: #8FA8B8;
            --text-panel: #1F2937;
            --success: #3AF08A;
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-hover: 0 0 0 1px rgba(0, 212, 198, .15), 0 16px 50px rgba(0, 212, 198, .12);
            --shadow-glow: 0 0 24px rgba(0, 212, 198, .3);
            --spacing-section: 96px;
            --spacing-section-mobile: 56px;
            --container-max: 1200px;
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            letter-spacing: 0.1px;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: #5ff5e8;
            text-decoration: none;
        }

        button {
            border: none;
            background: none;
            font-family: inherit;
            cursor: pointer;
        }

        input,
        textarea {
            font-family: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin-inline: auto;
            padding-inline: 24px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 420px;
            margin: 0 auto;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--brand-gradient);
            border-radius: 2px;
            margin: 14px auto 0;
        }

        .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            border: none;
            transition: all .3s ease;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--brand-gradient);
            color: var(--text-panel);
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: var(--shadow-glow);
            color: var(--text-panel);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: rgba(11, 26, 38, .45);
            color: var(--brand-primary);
            border: 1px solid rgba(0, 212, 198, .5);
        }

        .btn-outline:hover {
            background: rgba(0, 212, 198, .08);
            color: #5ff5e8;
            border-color: #00D4C6;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--bg-primary);
            color: var(--brand-secondary);
            border-radius: var(--radius-pill);
        }

        .btn-dark:hover {
            background: #162D3D;
            color: var(--brand-primary);
            box-shadow: 0 6px 24px rgba(0, 0, 0, .25);
            transform: translateY(-2px);
        }

        .btn-outline:active,
        .btn-primary:active,
        .btn-dark:active {
            transform: scale(.97);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

        .badge-data {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
        }

        .badge-data--amber {
            background: rgba(255, 169, 77, .15);
            color: var(--accent-amber);
        }

        .badge-data--red {
            background: rgba(255, 93, 117, .15);
            color: var(--danger-red);
        }

        .badge-data--gradient {
            background: var(--brand-gradient);
            color: var(--text-panel);
        }

        .badge-data--dark {
            background: rgba(11, 26, 38, .6);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .2);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 48px);
            max-width: var(--container-max);
            height: 68px;
            background: rgba(9, 21, 32, .76);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, .16);
            border-radius: var(--radius-pill);
            z-index: 1000;
            box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
            transition: box-shadow .3s ease, background .3s ease;
        }

        .site-nav.scrolled {
            background: rgba(9, 21, 32, .92);
            box-shadow: 0 12px 48px rgba(0, 0, 0, .5);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            padding: 0 12px 0 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .brand-logo:hover {
            color: var(--text-primary);
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-panel);
            font-size: 16px;
        }

        .brand-name {
            font-weight: 700;
            font-size: 18px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-item {
            position: relative;
            display: block;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            transition: color .25s ease, background .25s ease;
        }

        .nav-item:hover {
            color: var(--text-primary);
            background: rgba(0, 212, 198, .08);
        }

        .nav-item.active {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--brand-gradient);
            border-radius: 2px;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 20px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(0, 212, 198, .12);
            color: var(--brand-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right,
                    rgba(11, 26, 38, .96) 0%,
                    rgba(11, 26, 38, .82) 40%,
                    rgba(11, 26, 38, .45) 100%)
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(to top, var(--bg-primary) 0%, transparent 100%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding-top: 100px;
            padding-bottom: 80px;
        }

        .hero-badges {
            display: flex;
            gap: 12px;
            margin-bottom: 24px;
        }

        .badge-live {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            background: rgba(255, 169, 77, .15);
            color: var(--accent-amber);
            border: 1px solid rgba(255, 169, 77, .3);
        }

        .badge-live .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-amber);
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .5;
                transform: scale(.8);
            }
        }

        .badge-live--live {
            background: rgba(255, 93, 117, .15);
            color: var(--danger-red);
            border-color: rgba(255, 93, 117, .3);
        }

        .badge-live--live .live-dot {
            background: var(--danger-red);
        }

        .hero-title {
            font-size: 64px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 16px;
            max-width: 760px;
            letter-spacing: 1px;
        }

        .hero-subtitle {
            font-size: 20px;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-info {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-info i {
            color: var(--brand-primary);
            margin-right: 2px;
        }

        .hero-info .info-sep {
            color: rgba(143, 168, 184, .4);
            margin: 0 4px;
        }

        .hero-scroll {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            color: var(--text-secondary);
            animation: scroll-bounce 2s infinite;
            pointer-events: none;
        }

        @keyframes scroll-bounce {
            0%,
            100% {
                transform: translate(-50%, 0);
            }
            50% {
                transform: translate(-50%, 8px);
            }
        }

        /* ===== 倒计时 ===== */
        .countdown-section {
            padding: var(--spacing-section) 0;
            position: relative;
        }

        .countdown-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 212, 198, .1);
            padding: 48px;
            text-align: center;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .countdown-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-gradient);
        }

        .countdown-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 32px;
            letter-spacing: 2px;
        }

        .countdown-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 560px;
            margin: 0 auto 24px;
        }

        .countdown-item {
            background: var(--bg-primary);
            border: 1px solid rgba(0, 212, 198, .2);
            border-radius: 32px;
            padding: 28px 12px;
            text-align: center;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .countdown-item:hover {
            border-color: rgba(0, 212, 198, .4);
            box-shadow: 0 0 24px rgba(0, 212, 198, .08);
        }

        .countdown-num {
            font-size: 56px;
            font-weight: 700;
            color: var(--accent-amber);
            font-variant-numeric: tabular-nums;
            line-height: 1.1;
            letter-spacing: -2px;
        }

        .countdown-unit {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
            display: block;
        }

        .countdown-platform {
            font-size: 14px;
            color: rgba(143, 168, 184, .7);
            margin-top: 16px;
            letter-spacing: 1px;
        }

        /* ===== 看点 ===== */
        .highlights-section {
            padding: 0 0 var(--spacing-section);
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            align-items: start;
        }

        .highlight-card {
            background: var(--bg-panel);
            border-radius: 24px;
            padding: 36px 28px;
            position: relative;
            border: 1px solid rgba(0, 212, 198, .08);
            transition: transform .35s ease, box-shadow .35s ease;
        }

        .highlight-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .highlight-card--mid {
            margin-top: 24px;
        }

        .highlight-num {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-gradient);
            color: var(--text-panel);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(0, 212, 198, .25);
        }

        .highlight-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 212, 198, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--brand-primary);
            margin-bottom: 20px;
        }

        .highlight-card h3 {
            font-size: 20px;
            color: var(--text-primary);
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 订阅 ===== */
        .subscribe-section {
            padding: 0 0 var(--spacing-section);
        }

        .subscribe-card {
            background: var(--brand-gradient);
            border-radius: 32px;
            padding: 56px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 12px 48px rgba(0, 212, 198, .25);
        }

        .subscribe-card::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .1);
            top: -80px;
            right: -60px;
        }

        .subscribe-card::after {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .07);
            bottom: -50px;
            left: 30%;
        }

        .subscribe-content {
            position: relative;
            z-index: 1;
            max-width: 600px;
        }

        .subscribe-content h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-panel);
            margin-bottom: 8px;
        }

        .subscribe-content>p {
            font-size: 16px;
            color: rgba(11, 26, 38, .7);
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .subscribe-input {
            flex: 1;
            min-width: 220px;
            background: rgba(11, 26, 38, .4);
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-pill);
            padding: 14px 24px;
            color: #fff;
            font-size: 16px;
            outline: none;
            transition: all .3s ease;
        }

        .subscribe-input::placeholder {
            color: rgba(242, 247, 250, .7);
        }

        .subscribe-input:focus {
            border-color: rgba(11, 26, 38, .4);
            background: rgba(11, 26, 38, .5);
            box-shadow: 0 0 0 4px rgba(11, 26, 38, .15);
            color: #fff;
        }

        .subscribe-btn {
            background: var(--bg-primary);
            color: var(--brand-secondary);
            border-radius: var(--radius-pill);
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            transition: all .3s ease;
            border: none;
        }

        .subscribe-btn:hover {
            background: #162D3D;
            color: var(--brand-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, .2);
        }

        .subscribe-btn:disabled {
            opacity: .8;
            transform: none;
            cursor: default;
        }

        .subscribe-privacy {
            font-size: 13px;
            color: rgba(11, 26, 38, .6);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .subscribe-privacy i {
            font-size: 14px;
        }

        /* ===== 回放 ===== */
        .replays-section {
            padding: 0 0 var(--spacing-section);
        }

        .replay-card {
            background: var(--bg-panel);
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(0, 212, 198, .08);
            transition: transform .35s ease, box-shadow .35s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .replay-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .replay-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-panel-light);
        }

        .replay-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .replay-card:hover .replay-cover img {
            transform: scale(1.03);
        }

        .replay-duration {
            position: absolute;
            right: 12px;
            bottom: 12px;
            background: rgba(11, 26, 38, .8);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 8px;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.5px;
        }

        .replay-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .replay-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .replay-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .replay-meta i {
            margin-right: 4px;
        }

        .replay-link {
            font-weight: 500;
            font-size: 14px;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .3s ease;
        }

        .replay-link:hover {
            gap: 8px;
            color: #5ff5e8;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 0 0 var(--spacing-section);
        }

        .faq-container {
            max-width: 760px;
            margin: 0 auto;
        }

        .custom-accordion .accordion-item {
            background: var(--bg-panel);
            border: 1px solid rgba(0, 212, 198, .1);
            border-radius: 24px;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .custom-accordion .accordion-button {
            background: var(--bg-panel);
            color: var(--text-primary);
            font-size: 18px;
            font-weight: 600;
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: none;
            border: none;
            transition: color .25s ease;
        }

        .custom-accordion .accordion-button::after {
            display: none !important;
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--bg-panel);
            box-shadow: none;
        }

        .custom-accordion .accordion-button:not(.collapsed) .accordion-icon {
            transform: rotate(45deg);
        }

        .custom-accordion .accordion-icon {
            font-size: 28px;
            font-weight: 300;
            color: var(--brand-primary);
            transition: transform .3s ease;
            line-height: 1;
            margin-left: 16px;
            flex-shrink: 0;
        }

        .custom-accordion .accordion-body {
            background: var(--bg-panel);
            color: var(--text-secondary);
            padding: 0 28px 24px;
            font-size: 14px;
            line-height: 1.7;
            border-top: 1px solid rgba(0, 212, 198, .1);
            margin: 0 24px;
            padding-left: 0;
            padding-right: 0;
            padding-bottom: 24px;
        }

        /* ===== 最新动态 ===== */
        .news-section {
            padding: 0 0 var(--spacing-section);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-bottom: 40px;
        }

        .article-item {
            display: flex;
            gap: 24px;
            background: var(--bg-panel);
            border-radius: 20px;
            padding: 20px;
            border: 1px solid rgba(0, 212, 198, .07);
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .article-item:hover {
            border-color: rgba(0, 212, 198, .2);
            box-shadow: var(--shadow-hover);
        }

        .article-thumb {
            flex: 0 0 160px;
            width: 160px;
            height: 100px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-panel-light);
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .article-item:hover .article-thumb img {
            transform: scale(1.05);
        }

        .article-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .article-tags {
            margin-bottom: 8px;
        }

        .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color .25s ease;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-title a {
            color: inherit;
        }

        .article-title a:hover {
            color: var(--brand-primary);
        }

        .article-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .article-meta i {
            margin-right: 4px;
            color: var(--brand-primary);
            font-size: 12px;
        }

        .article-more {
            margin-left: auto;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-more:hover {
            gap: 8px;
        }

        .news-more {
            text-align: center;
        }

        .empty-state {
            background: var(--bg-panel);
            border-radius: 24px;
            padding: 56px 24px;
            text-align: center;
            border: 1px solid rgba(0, 212, 198, .08);
        }

        .empty-state i {
            font-size: 44px;
            color: rgba(0, 212, 198, .4);
            margin-bottom: 16px;
        }

        .empty-state p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #081520;
            border-top: 1px solid rgba(0, 212, 198, .15);
            padding: 72px 0 24px;
            position: relative;
        }

        .footer-grid {
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(143, 168, 184, .1);
            margin-bottom: 24px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 16px;
            max-width: 300px;
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .site-footer ul {
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer ul li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .site-footer ul li a {
            color: var(--text-secondary);
            transition: color .25s ease;
        }

        .site-footer ul li a:hover {
            color: var(--brand-primary);
        }

        .site-footer ul li i {
            color: var(--brand-primary);
            width: 18px;
            margin-right: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(143, 168, 184, .6);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: rgba(0, 212, 198, .08);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 500;
            transition: all .3s ease;
        }

        .footer-top:hover {
            background: rgba(0, 212, 198, .15);
            color: #5ff5e8;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 212, 198, .15);
        }

        /* ===== Toast ===== */
        .custom-toast {
            position: fixed;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%) translateY(120px);
            background: var(--bg-panel);
            color: var(--text-primary);
            border: 1px solid rgba(0, 212, 198, .3);
            border-radius: 16px;
            padding: 16px 24px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, .5);
            z-index: 2000;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            transition: transform .4s ease, opacity .4s ease;
            opacity: 0;
            pointer-events: none;
        }

        .custom-toast.show {
            transform: translateX(-50%) translateY(0);
            opacity: 1;
        }

        .custom-toast i {
            color: var(--success);
            font-size: 18px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 48px;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .highlight-card--mid {
                margin-top: 0;
            }
            .highlight-card:last-child {
                grid-column: span 2;
                max-width: 480px;
                margin: 0 auto;
                width: 100%;
            }
            .replay-card {
                margin-bottom: 8px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }
            .container {
                padding-inline: 16px;
            }
            .site-nav {
                width: calc(100% - 24px);
                top: 12px;
                height: 60px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(9, 21, 32, .97);
                border-radius: 20px;
                flex-direction: column;
                padding: 12px;
                display: none;
                border: 1px solid rgba(0, 212, 198, .1);
                box-shadow: 0 16px 48px rgba(0, 0, 0, .5);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-item {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-item.active::after {
                display: none;
            }
            .nav-cta {
                margin-right: 8px;
                padding: 8px 16px;
                font-size: 13px;
            }
            .brand-name {
                font-size: 16px;
            }
            .hero-title {
                font-size: 34px;
                line-height: 1.25;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-info {
                font-size: 13px;
            }
            .hero-actions .btn {
                padding: 12px 24px;
                font-size: 15px;
            }
            .countdown-card {
                padding: 24px 16px;
            }
            .countdown-grid {
                gap: 8px;
                max-width: 100%;
            }
            .countdown-item {
                padding: 16px 4px;
                border-radius: 20px;
            }
            .countdown-num {
                font-size: 32px;
            }
            .countdown-unit {
                font-size: 12px;
            }
            .countdown-title {
                font-size: 18px;
                margin-bottom: 20px;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .highlight-card:last-child {
                grid-column: auto;
                max-width: none;
            }
            .highlight-card--mid {
                margin-top: 0;
            }
            .subscribe-card {
                padding: 32px 20px;
                border-radius: 24px;
            }
            .subscribe-content h2 {
                font-size: 28px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-input {
                width: 100%;
                min-width: 0;
            }
            .subscribe-btn {
                width: 100%;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 14px;
            }
            .article-item {
                flex-direction: column;
                gap: 16px;
                padding: 16px;
            }
            .article-thumb {
                flex: 0 0 auto;
                width: 100%;
                height: 140px;
            }
            .article-title {
                font-size: 16px;
                white-space: normal;
                overflow: visible;
                text-overflow: clip;
            }
            .article-more {
                margin-left: 0;
            }
            .footer-grid {
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .countdown-platform {
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 28px;
            }
            .hero-badges {
                margin-bottom: 16px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .countdown-card {
                padding: 20px 10px;
            }
            .countdown-grid {
                gap: 6px;
            }
            .countdown-item {
                padding: 12px 2px;
                border-radius: 16px;
            }
            .countdown-num {
                font-size: 28px;
            }
            .countdown-unit {
                font-size: 11px;
            }
            .brand-name {
                font-size: 15px;
            }
            .brand-icon {
                width: 30px;
                height: 30px;
            }
            .article-thumb {
                height: 120px;
            }
            .article-meta {
                gap: 8px;
                font-size: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0B1A26;
            --bg-panel: #122634;
            --bg-panel-light: #162D3D;
            --brand-cyan: #00D4C6;
            --brand-green: #3AF08A;
            --brand-gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --accent-amber: #FFA94D;
            --danger-red: #FF5D75;
            --text-primary: #F2F7FA;
            --text-secondary: #8FA8B8;
            --text-on-light: #1F2937;
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 0 0 1px rgba(0, 212, 198, 0.15), 0 16px 50px rgba(0, 212, 198, 0.12);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --spacer: 32px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            line-height: 1.8;
            background: var(--bg-deep);
            color: var(--text-primary);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: var(--brand-cyan);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: #4ee6da;
            text-decoration: underline;
        }

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ---------- 导航 ---------- */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 24px;
            right: 24px;
            z-index: 1050;
            border-radius: 999px;
            background: rgba(9, 21, 32, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, 0.25);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-nav.scrolled {
            box-shadow: 0 12px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 198, 0.12);
            background: rgba(9, 21, 32, 0.88);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 68px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-primary) !important;
            text-decoration: none !important;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #062228;
            font-size: 17px;
            flex-shrink: 0;
        }

        .brand-name {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-menu .nav-item {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 999px;
            text-decoration: none;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-menu .nav-item:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            text-decoration: none;
        }

        .nav-menu .nav-item.active {
            color: #062228;
            background: var(--brand-gradient);
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(0, 212, 198, 0.3);
        }

        .nav-cta {
            flex-shrink: 0;
            margin-left: 8px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ---------- 按钮 ---------- */
        .btn {
            border-radius: 999px;
            font-weight: 600;
            transition: all 0.25s ease;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-primary {
            background: var(--brand-gradient);
            color: #062228;
            padding: 14px 32px;
            font-size: 16px;
            box-shadow: 0 6px 24px rgba(0, 212, 198, 0.25);
        }

        .btn-primary:hover {
            filter: brightness(1.1);
            box-shadow: 0 8px 32px rgba(0, 212, 198, 0.4);
            color: #062228;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline-cyan {
            background: rgba(0, 212, 198, 0.06);
            border: 1px solid rgba(0, 212, 198, 0.55);
            color: var(--brand-cyan);
            padding: 13px 30px;
            font-size: 16px;
        }

        .btn-outline-cyan:hover {
            background: rgba(0, 212, 198, 0.14);
            color: #4ee6da;
            border-color: #4ee6da;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-outline-cyan:active {
            transform: scale(0.97);
        }

        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
        }

        /* ---------- Hero ---------- */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: url('/assets/images/backpic/back-1.webp') no-repeat center center/cover;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(95deg, rgba(11, 26, 38, 0.95) 0%, rgba(11, 26, 38, 0.75) 45%, rgba(11, 26, 38, 0.4) 100%);
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 999px;
            background: rgba(0, 212, 198, 0.12);
            border: 1px solid rgba(0, 212, 198, 0.35);
            color: var(--brand-cyan);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
        }

        .cat-badge i {
            font-size: 12px;
            animation: pulse-dot 1.6s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .hero-section h1 {
            font-size: 64px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-section h1 .brand-gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-section .hero-sub {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 580px;
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .hero-section .hero-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-meta-bar {
            display: inline-flex;
            align-items: center;
            gap: 18px;
            padding: 14px 28px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            backdrop-filter: blur(8px);
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .hero-meta-bar i {
            color: var(--brand-cyan);
            margin-right: 6px;
        }

        .hero-meta-bar .meta-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            display: inline-block;
        }

        /* ---------- 区块通用 ---------- */
        .section {
            padding: 100px 0;
        }

        .section-alt {
            background: var(--bg-panel);
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head .section-eyebrow {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--brand-cyan);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .section-head h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin: 0;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-top: 12px;
            max-width: 640px;
            line-height: 1.8;
        }

        /* ---------- 图文双栏 ---------- */
        .feature-row {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 80px;
            flex-wrap: wrap;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-row.even {
            flex-direction: row-reverse;
        }

        .feature-media {
            flex: 1 1 42%;
            min-width: 280px;
        }

        .feature-media .media-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-soft);
            position: relative;
        }

        .feature-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .feature-media .media-frame:hover img {
            transform: scale(1.04);
        }

        .feature-media .media-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(11, 26, 38, 0.78);
            backdrop-filter: blur(8px);
            font-size: 13px;
            font-weight: 600;
            color: var(--brand-cyan);
            border: 1px solid rgba(0, 212, 198, 0.3);
        }

        .feature-content {
            flex: 1 1 48%;
            min-width: 280px;
        }

        .feature-content .feature-index {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--accent-amber);
            margin-bottom: 10px;
        }

        .feature-content h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .feature-content p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .feature-points {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .feature-points li {
            padding: 6px 0;
            color: var(--text-primary);
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .feature-points li i {
            color: var(--brand-green);
            font-size: 14px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-cyan);
        }

        .feature-link:hover {
            color: #4ee6da;
            text-decoration: none;
        }

        /* ---------- 数据徽章条 ---------- */
        .stats-band {
            background: var(--bg-panel-light);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
        }

        .stats-grid {
            display: flex;
            justify-content: space-around;
            gap: 24px;
            flex-wrap: wrap;
            text-align: center;
        }

        .stat-item {
            flex: 1 1 180px;
            max-width: 240px;
            padding: 16px;
        }

        .stat-number {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
        }

        .stat-item.amber .stat-number {
            background: linear-gradient(135deg, #FFA94D, #FFD28A);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            display: block;
            letter-spacing: 1px;
        }

        /* ---------- 产品卡片 ---------- */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .product-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-soft);
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            gap: 24px;
            align-items: flex-start;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 198, 0.3);
        }

        .product-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #062228;
            flex-shrink: 0;
        }

        .product-card:hover .product-icon {
            box-shadow: 0 6px 24px rgba(0, 212, 198, 0.4);
        }

        .product-body {
            flex: 1;
        }

        .product-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .product-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .product-body .product-meta {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .product-meta .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(0, 212, 198, 0.08);
            border: 1px solid rgba(0, 212, 198, 0.25);
            color: var(--brand-cyan);
            font-size: 12px;
            font-weight: 500;
        }

        /* ---------- 应用场景 ---------- */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scene-card {
            background: var(--bg-deep);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-soft);
            text-align: center;
            transition: all 0.3s ease;
        }

        .scene-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 198, 0.35);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
        }

        .scene-card .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: rgba(0, 212, 198, 0.12);
            color: var(--brand-cyan);
            border: 1px solid rgba(0, 212, 198, 0.2);
        }

        .scene-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .scene-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ---------- FAQ ---------- */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-panel);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(0, 212, 198, 0.35);
        }

        .accordion-button {
            width: 100%;
            background: transparent;
            color: var(--text-primary);
            border: none;
            padding: 24px 28px;
            font-size: 17px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
        }

        .accordion-button:focus {
            outline: none;
            box-shadow: none;
        }

        .accordion-button .accordion-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 212, 198, 0.15);
            color: var(--brand-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .accordion-button:not(.collapsed) .accordion-icon {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 0 28px 24px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            padding: 100px 0;
        }

        .cta-card {
            border-radius: 32px;
            background: var(--brand-gradient);
            padding: 64px 56px;
            color: #062228;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .cta-card h2 {
            font-size: 34px;
            font-weight: 800;
            margin: 0 0 16px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 16px;
            max-width: 560px;
            margin: 0 0 28px;
            opacity: 0.85;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-dark-round {
            background: #062228;
            color: #3AF08A;
            border: none;
            border-radius: 999px;
            padding: 14px 32px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.25s ease;
        }

        .btn-dark-round:hover {
            background: #0a2e36;
            color: #5ff5a0;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(6, 34, 40, 0.3);
            text-decoration: none;
        }

        .btn-white-outline {
            background: rgba(255, 255, 255, 0.15);
            color: #062228;
            border: 1px solid rgba(6, 34, 40, 0.35);
            border-radius: 999px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s ease;
        }

        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.3);
            color: #062228;
            text-decoration: none;
        }

        /* ---------- 订阅 ------------- */
        .subscribe-card {
            background: var(--bg-panel-light);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid var(--border-soft);
            text-align: center;
            margin-top: 32px;
        }

        .subscribe-card h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .subscribe-card p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            max-width: 560px;
            margin: 0 auto;
        }

        .subscribe-form .form-control {
            flex: 1 1 280px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            padding: 12px 22px;
            font-size: 14px;
        }

        .subscribe-form .form-control::placeholder {
            color: var(--text-secondary);
        }

        .subscribe-form .form-control:focus {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--brand-cyan);
            box-shadow: 0 0 0 4px rgba(0, 212, 198, 0.15);
            color: var(--text-primary);
            outline: none;
        }

        .privacy-note {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 14px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #091521;
            border-top: 1px solid;
            border-image: linear-gradient(90deg, transparent, #00D4C6, transparent) 1;
            padding: 72px 0 32px;
        }

        .footer-grid {
            margin-bottom: 48px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .site-footer ul li a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .site-footer ul li a:hover {
            color: var(--brand-cyan);
            text-decoration: none;
        }

        .site-footer ul li i {
            width: 20px;
            color: var(--brand-cyan);
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            margin: 0;
        }

        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: 999px;
            padding: 8px 18px;
            transition: all 0.25s ease;
        }

        .footer-top:hover {
            border-color: rgba(0, 212, 198, 0.4);
            color: var(--brand-cyan);
            text-decoration: none;
            transform: translateY(-2px);
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1200px) {
            .nav-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 992px) {
            .nav-menu {
                position: fixed;
                top: 84px;
                left: 24px;
                right: 24px;
                background: rgba(9, 21, 32, 0.97);
                backdrop-filter: blur(20px);
                border-radius: 24px;
                border: 1px solid var(--border-soft);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu .nav-item {
                width: 100%;
                padding: 12px 20px;
                font-size: 16px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                margin-left: auto;
                margin-right: 8px;
                display: none;
            }

            .hero-section h1 {
                font-size: 44px;
            }

            .section {
                padding: 72px 0;
            }

            .feature-row {
                gap: 40px;
            }

            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .product-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-nav {
                left: 12px;
                right: 12px;
                top: 12px;
            }

            .nav-inner {
                padding: 0 16px;
                height: 60px;
            }

            .brand-name {
                font-size: 18px;
            }

            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .hero-section {
                min-height: auto;
                padding: 120px 0 60px;
            }

            .hero-section h1 {
                font-size: 34px;
            }

            .hero-section .hero-sub {
                font-size: 16px;
            }

            .hero-meta-bar {
                font-size: 13px;
                padding: 12px 18px;
                gap: 10px;
            }

            .section-head h2 {
                font-size: 30px;
            }

            .feature-row {
                margin-bottom: 60px;
            }

            .feature-row,
            .feature-row.even {
                flex-direction: column;
            }

            .feature-media img {
                height: 240px;
            }

            .stats-grid {
                gap: 16px;
            }

            .stat-number {
                font-size: 30px;
            }

            .product-card {
                flex-direction: column;
                padding: 24px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
            }

            .cta-card {
                padding: 40px 24px;
                border-radius: 24px;
            }

            .cta-card h2 {
                font-size: 26px;
            }

            .subscribe-card {
                padding: 32px 20px;
            }

            .subscribe-form .form-control {
                flex: 1 1 100%;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .btn-dark-round,
            .btn-white-outline {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 420px) {
            .hero-section h1 {
                font-size: 28px;
            }

            .brand-logo {
                gap: 8px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-meta-bar .meta-sep {
                display: none;
            }
        }

/* roulang page: article */
:root {
    --bg-primary: #0B1A26;
    --bg-panel: #122634;
    --bg-panel-light: #162D3D;
    --bg-light-panel: #F4F7FA;
    --brand-primary: #00D4C6;
    --brand-secondary: #3AF08A;
    --brand-gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
    --amber: #FFA94D;
    --red: #FF5D75;
    --text-primary: #F2F7FA;
    --text-secondary: #8FA8B8;
    --text-on-light: #1F2937;
    --text-light-secondary: #556B7B;
    --border-white: rgba(255,255,255,.1);
    --radius-xl: 32px;
    --radius-lg: 28px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --radius-pill: 999px;
    --shadow-card: 0 12px 40px rgba(0,0,0,.35);
    --shadow-hover: 0 0 0 1px rgba(0,212,198,.15), 0 16px 50px rgba(0,212,198,.12);
    --shadow-glow: 0 0 24px rgba(0,212,198,.25);
    --transition-base: all .3s ease;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition-base); }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* 按钮 */
.btn-primary, a.btn-primary {
    background: var(--brand-gradient);
    border: none;
    color: #062A33;
    font-weight: 600;
    border-radius: var(--radius-pill);
    padding: 12px 28px;
    font-size: 15px;
    transition: var(--transition-base);
    box-shadow: 0 4px 16px rgba(0,212,198,.18);
}
.btn-primary:hover, a.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0,212,198,.35);
    color: #062A33;
}
.btn-primary:active, a.btn-primary:active { transform: scale(.97); }
.btn-secondary, a.btn-secondary {
    background: transparent;
    border: 1px solid rgba(0,212,198,.5);
    color: var(--brand-primary);
    border-radius: var(--radius-pill);
    padding: 12px 28px;
    font-size: 15px;
    transition: var(--transition-base);
}
.btn-secondary:hover, a.btn-secondary:hover {
    background: rgba(0,212,198,.1);
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    transform: translateY(-2px);
}
.btn-secondary:active, a.btn-secondary:active { transform: scale(.97); }

/* 导航 */
.site-nav {
    position: fixed;
    top: 16px;
    left: 20px;
    right: 20px;
    z-index: 1000;
    background: rgba(9,21,32,.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(0,212,198,.18);
    border-radius: var(--radius-pill);
    box-shadow: 0 8px 32px rgba(0,0,0,.35);
    transition: var(--transition-base);
}
.site-nav.scrolled {
    box-shadow: 0 12px 40px rgba(0,0,0,.55), 0 0 0 1px rgba(0,212,198,.25);
}
.nav-inner {
    display: flex;
    align-items: center;
    height: 72px;
    padding: 0 20px 0 28px;
    border-radius: var(--radius-pill);
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--brand-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #062A33;
    font-size: 16px;
    box-shadow: var(--shadow-glow);
}
.brand-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    white-space: nowrap;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
}
.nav-item {
    font-size: 15px;
    padding: 10px 18px;
    border-radius: 999px;
    color: var(--text-secondary);
    transition: var(--transition-base);
    white-space: nowrap;
}
.nav-item:hover {
    color: var(--text-primary);
    background: rgba(0,212,198,.08);
}
.nav-item.active {
    color: var(--brand-primary);
    background: rgba(0,212,198,.16);
    font-weight: 600;
}
.nav-cta { flex-shrink: 0; }
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255,255,255,.08);
    color: var(--text-primary);
    font-size: 16px;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}
.nav-toggle:hover { background: rgba(0,212,198,.2); }

/* 面包屑 */
.article-breadcrumb {
    padding: 140px 0 40px;
    background:
        linear-gradient(180deg, rgba(11,26,38,.92) 0%, rgba(18,38,52,.88) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom: 1px solid rgba(255,255,255,.05);
}
.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
}
.breadcrumb-nav a {
    color: var(--text-secondary);
    padding: 8px 18px;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-base);
}
.breadcrumb-nav a:hover {
    color: var(--brand-primary);
    border-color: rgba(0,212,198,.35);
    background: rgba(0,212,198,.08);
}
.breadcrumb-sep { color: var(--text-secondary); opacity: .5; font-size: 13px; }
.breadcrumb-nav .current {
    color: var(--brand-primary);
    background: rgba(0,212,198,.12);
    border: 1px solid rgba(0,212,198,.25);
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
    max-width: 420px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: inline-block;
}

/* 文章主区 */
.article-main {
    padding: 48px 0 80px;
    background: var(--bg-primary);
}
.article-panel {
    background: var(--bg-light-panel);
    border-radius: var(--radius-lg);
    padding: 48px;
    color: var(--text-on-light);
    box-shadow: var(--shadow-card);
    max-width: 840px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    animation: fadeInUp .8s ease;
}
.article-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--brand-gradient);
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.article-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--brand-gradient);
    color: #062A33;
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    padding: 6px 16px;
    margin-bottom: 20px;
}
.article-header h1 {
    font-size: 36px;
    line-height: 1.4;
    color: var(--text-on-light);
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -.5px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(31,41,55,.1);
    font-size: 14px;
    color: var(--text-light-secondary);
}
.article-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-content {
    padding-top: 40px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-on-light);
}
.article-content p { margin-bottom: 16px; }
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 40px 0 16px;
    color: var(--text-on-light);
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(31,41,55,.08);
}
.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 12px;
    color: var(--text-on-light);
}
.article-content blockquote {
    border-left: 4px solid var(--brand-primary);
    background: rgba(0,212,198,.06);
    padding: 20px 24px;
    border-radius: 0 12px 12px 0;
    margin: 24px 0;
    color: var(--text-light-secondary);
    font-style: normal;
}
.article-content ul {
    list-style: disc;
    padding-left: 24px;
    margin: 16px 0;
}
.article-content ol {
    list-style: decimal;
    padding-left: 24px;
    margin: 16px 0;
}
.article-content ul li, .article-content ol li { margin-bottom: 8px; }
.article-content img {
    border-radius: 16px;
    margin: 24px auto;
    display: block;
    box-shadow: 0 8px 30px rgba(0,0,0,.12);
}
.article-content a {
    color: var(--brand-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.article-content a:hover { color: #00b3a6; }
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-content table th,
.article-content table td {
    border: 1px solid rgba(31,41,55,.12);
    padding: 12px 16px;
    text-align: left;
}
.article-content table th {
    background: rgba(31,41,55,.04);
    font-weight: 600;
}
.article-content figure { margin: 24px 0; text-align: center; }
.article-content figcaption {
    font-size: 13px;
    color: var(--text-light-secondary);
    margin-top: 8px;
}
.article-content code {
    background: rgba(31,41,55,.06);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    font-family: "SFMono-Regular", Consolas, monospace;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(31,41,55,.1);
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light-secondary);
    background: rgba(31,41,55,.05);
    border-radius: 999px;
    padding: 6px 16px;
    border: 1px solid rgba(31,41,55,.08);
    transition: var(--transition-base);
}
.tag:hover {
    color: var(--brand-primary);
    border-color: rgba(0,212,198,.35);
    background: rgba(0,212,198,.05);
}

/* 空状态 */
.article-empty {
    text-align: center;
    padding: 80px 32px;
}
.empty-icon {
    font-size: 56px;
    color: var(--brand-primary);
    margin-bottom: 20px;
}
.article-empty h2 {
    font-size: 26px;
    margin-bottom: 12px;
    color: var(--text-on-light);
    font-weight: 700;
}
.article-empty p {
    color: var(--text-light-secondary);
    margin-bottom: 28px;
    font-size: 15px;
}

/* 相关推荐 */
.related-section {
    padding: 16px 0 56px;
    background: var(--bg-primary);
}
.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.section-title::before {
    content: '';
    width: 4px;
    height: 28px;
    border-radius: 8px;
    background: var(--brand-gradient);
}
.related-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-panel);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: var(--radius-md);
    padding: 14px;
    overflow: hidden;
    transition: var(--transition-base);
    color: var(--text-primary);
    height: 100%;
}
.related-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0,212,198,.4);
    box-shadow: var(--shadow-hover);
    color: var(--text-primary);
}
.related-card img {
    width: 140px;
    height: 92px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
    transition: transform .4s ease;
}
.related-card:hover img { transform: scale(1.05); }
.related-card-body { flex: 1; min-width: 0; }
.related-card-body h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.related-card-body p {
    font-size: 13px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.6;
    margin-bottom: 0;
}
.related-back {
    margin-top: 36px;
    text-align: center;
}

/* CTA 订阅 */
.cta-section {
    padding: 48px 0 96px;
    background: var(--bg-primary);
}
.cta-card {
    background: var(--brand-gradient);
    border-radius: var(--radius-xl);
    padding: 56px 48px 48px;
    color: #062A33;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    background: rgba(255,255,255,.08);
    border-radius: 50%;
    top: -100px;
    right: -80px;
}
.cta-card::after {
    content: '';
    position: absolute;
    width: 220px;
    height: 220px;
    background: rgba(255,255,255,.06);
    border-radius: 50%;
    bottom: -90px;
    left: -60px;
}
.cta-title {
    position: relative;
    z-index: 1;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}
.cta-subtitle {
    position: relative;
    z-index: 1;
    font-size: 16px;
    opacity: .85;
    margin-bottom: 32px;
}
.subscribe-form { position: relative; z-index: 1; }
.subscribe-box {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto 14px;
}
.subscribe-box .form-control {
    background: rgba(6,42,51,.14);
    border: 1px solid rgba(6,42,51,.2);
    border-radius: 999px;
    height: 48px;
    padding: 0 24px;
    color: #062A33;
    flex: 1;
    font-size: 15px;
    box-shadow: none;
    transition: var(--transition-base);
}
.subscribe-box .form-control::placeholder { color: rgba(6,42,51,.55); }
.subscribe-box .form-control:focus {
    background: rgba(6,42,51,.2);
    border-color: #062A33;
    outline: none;
    box-shadow: 0 0 0 4px rgba(6,42,51,.12);
    color: #062A33;
}
.btn-subscribe {
    background: #062A33;
    border: none;
    color: #ffffff;
    border-radius: 999px;
    height: 48px;
    padding: 0 32px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition-base);
    white-space: nowrap;
}
.btn-subscribe:hover {
    background: #0B1A26;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(6,42,51,.25);
    color: #fff;
}
.btn-subscribe:active { transform: scale(.97); }
.subscribe-note {
    font-size: 12px;
    opacity: .7;
    margin-bottom: 0;
}

/* 页脚 */
.site-footer {
    background: var(--bg-panel);
    border-top: 1px solid rgba(0,212,198,.2);
    padding: 56px 0 24px;
    color: var(--text-secondary);
}
.footer-grid { row-gap: 32px; }
.footer-brand p { font-size: 14px; margin-top: 16px; color: var(--text-secondary); line-height: 1.8; }
.site-footer h4 { color: var(--text-primary); font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.site-footer ul { padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 10px; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.site-footer a { color: var(--text-secondary); transition: var(--transition-base); }
.site-footer a:hover { color: var(--brand-primary); }
.footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-top {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-primary) !important;
    border: 1px solid rgba(0,212,198,.3);
    border-radius: 999px;
    padding: 8px 20px;
    transition: var(--transition-base);
}
.footer-top:hover {
    background: rgba(0,212,198,.1);
    color: var(--brand-primary);
}

/* 响应式 */
@media (max-width: 1199.98px) {
    .related-card img { width: 120px; height: 80px; }
}
@media (max-width: 991.98px) {
    .nav-menu {
        position: absolute;
        top: calc(100% + 14px);
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(9,21,32,.96);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid rgba(0,212,198,.2);
        border-radius: 24px;
        padding: 14px;
        gap: 4px;
        display: none;
        margin: 0;
        align-items: stretch;
        box-shadow: 0 20px 60px rgba(0,0,0,.5);
    }
    .nav-menu.open { display: flex; }
    .nav-toggle {
        display: inline-flex;
        margin-left: auto;
    }
    .nav-cta { display: none; }
    .nav-item {
        padding: 12px 20px;
        border-radius: 16px;
        text-align: center;
        font-size: 15px;
    }
    .article-breadcrumb { padding-top: 120px; }
    .article-panel { padding: 36px; }
    .article-header h1 { font-size: 30px; }
    .section-title { font-size: 24px; }
    .cta-card { padding: 44px 32px 40px; }
    .cta-title { font-size: 26px; }
    .related-card { align-items: flex-start; }
}
@media (max-width: 767.98px) {
    .site-nav { left: 12px; right: 12px; top: 12px; }
    .nav-inner { height: 64px; padding: 0 16px; }
    .brand-name { font-size: 18px; }
    .brand-icon { width: 36px; height: 36px; font-size: 14px; }
    .article-breadcrumb { padding: 110px 0 28px; }
    .breadcrumb-nav { font-size: 13px; gap: 6px; }
    .breadcrumb-nav a, .breadcrumb-nav .current { padding: 6px 12px; }
    .article-panel { padding: 28px 20px; border-radius: 20px; }
    .article-header h1 { font-size: 24px; }
    .article-meta { gap: 12px; font-size: 13px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 20px; }
    .article-content h3 { font-size: 18px; }
    .article-tags { gap: 6px; }
    .tag { font-size: 12px; padding: 4px 12px; }
    .related-card { flex-direction: column; align-items: stretch; }
    .related-card img { width: 100%; height: 130px; }
    .related-back { margin-top: 24px; }
    .cta-card { padding: 38px 20px 32px; border-radius: 20px; }
    .cta-title { font-size: 22px; }
    .cta-subtitle { font-size: 14px; margin-bottom: 24px; }
    .subscribe-box { flex-direction: column; }
    .subscribe-box .form-control { width: 100%; }
    .btn-subscribe { width: 100%; }
    .footer-bottom { justify-content: center; text-align: center; }
    .footer-grid { row-gap: 24px; }
}
@media (max-width: 520px) {
    .article-breadcrumb { padding-top: 100px; }
    .breadcrumb-nav .current { max-width: 180px; }
    .article-panel { padding: 24px 16px; }
    .article-header h1 { font-size: 22px; line-height: 1.45; }
    .article-meta { gap: 8px; }
    .section-title { font-size: 22px; margin-bottom: 24px; }
    .cta-title { font-size: 20px; }
    .subscribe-note { font-size: 11px; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --bg-primary: #0B1A26;
            --bg-panel: #122634;
            --bg-panel-light: #162D3D;
            --brand-primary: #00D4C6;
            --brand-secondary: #3AF08A;
            --brand-gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --accent-amber: #FFA94D;
            --danger-red: #FF5D75;
            --text-primary: #F2F7FA;
            --text-secondary: #8FA8B8;
            --text-light: #1F2937;
            --border-glow: rgba(0, 212, 198, .15);
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-hover: 0 0 0 1px rgba(0, 212, 198, .15), 0 16px 50px rgba(0, 212, 198, .12);
            --spacing-section: 96px;
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: color .3s ease;
        }
        a:hover {
            color: var(--brand-secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1200px;
            z-index: 1080;
            border-radius: 999px;
            background: rgba(9, 21, 32, .72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, .2);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
            transition: box-shadow .4s ease, background .4s ease;
        }
        .site-nav.scrolled {
            background: rgba(9, 21, 32, .92);
            box-shadow: 0 12px 44px rgba(0, 0, 0, .5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            height: 64px;
            border-radius: 999px;
            position: relative;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand-gradient);
            border-radius: 50%;
            color: #0B1A26;
            font-size: 15px;
            box-shadow: 0 0 18px rgba(0, 212, 198, .35);
        }
        .brand-name {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: .5px;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .nav-item {
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            transition: all .3s ease;
            white-space: nowrap;
        }
        .nav-item:hover {
            color: var(--brand-primary);
            background: rgba(0, 212, 198, .08);
        }
        .nav-item.active {
            color: var(--brand-primary);
            background: rgba(0, 212, 198, .1);
        }
        .nav-cta {
            padding: 8px 22px !important;
            font-size: 14px !important;
            border-radius: 999px !important;
            white-space: nowrap;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 20px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, .1);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, .05);
        }

        /* 导航响应式 */
        @media (max-width: 991px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 0;
                right: 0;
                background: rgba(9, 21, 32, .96);
                backdrop-filter: blur(20px);
                border-radius: 24px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                border: 1px solid rgba(0, 212, 198, .15);
                box-shadow: 0 16px 48px rgba(0, 0, 0, .6);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-item {
                padding: 12px 20px;
                text-align: center;
                font-size: 15px;
            }
            .nav-cta {
                display: none !important;
            }
            .nav-toggle {
                display: flex;
            }
        }
        @media (max-width: 375px) {
            .site-nav {
                top: 12px;
                width: calc(100% - 20px);
            }
            .nav-inner {
                padding: 0 12px;
                height: 58px;
            }
            .brand-name {
                font-size: 16px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }
        }

        /* ===== 按钮通用 ===== */
        .btn {
            border-radius: 999px !important;
            font-weight: 600 !important;
            transition: all .3s ease !important;
            border: none;
            padding: 12px 28px;
            letter-spacing: .5px;
        }
        .btn-primary {
            background: var(--brand-gradient) !important;
            color: #0B1A26 !important;
            box-shadow: 0 4px 20px rgba(0, 212, 198, .25);
        }
        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: 0 0 36px rgba(0, 212, 198, .45);
            color: #0B1A26 !important;
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(.97) !important;
            box-shadow: 0 2px 12px rgba(0, 212, 198, .2);
        }
        .btn-outline-brand {
            background: rgba(0, 212, 198, .06) !important;
            color: var(--brand-primary) !important;
            border: 1px solid rgba(0, 212, 198, .35) !important;
        }
        .btn-outline-brand:hover {
            background: rgba(0, 212, 198, .14) !important;
            color: var(--brand-secondary) !important;
            border-color: var(--brand-secondary) !important;
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 212, 198, .2);
        }
        .btn-outline-brand:active {
            transform: scale(.97) !important;
        }
        .btn-sm {
            padding: 8px 20px !important;
            font-size: 14px !important;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(11, 26, 38, .55);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 13px;
            margin-bottom: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, .25);
        }
        .breadcrumb-custom .current {
            color: var(--brand-primary);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .page-hero {
            padding: 170px 0 80px;
            background: linear-gradient(180deg, rgba(11, 26, 38, .88) 0%, rgba(11, 26, 38, .72) 50%, rgba(11, 26, 38, .95) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            position: relative;
        }
        .page-hero-inner {
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 198, .12);
            border: 1px solid rgba(0, 212, 198, .25);
            color: var(--brand-primary);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-secondary);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .4;
                transform: scale(.8);
            }
        }
        .page-hero h1 {
            font-size: 56px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-hero h1 .gradient-text {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero .subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 数据徽章条 ===== */
        .stats-section {
            padding: 56px 0;
            background: var(--bg-panel);
            border-bottom: 1px solid rgba(255, 255, 255, .03);
        }
        .stats-row {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .stat-item {
            background: var(--bg-panel-light);
            border-radius: var(--radius-md);
            padding: 26px 40px;
            text-align: center;
            border: 1px solid rgba(0, 212, 198, .18);
            min-width: 160px;
            transition: all .3s ease;
        }
        .stat-item:hover {
            border-color: rgba(0, 212, 198, .5);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-item .number {
            font-size: 38px;
            font-weight: 800;
            color: var(--accent-amber);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== 区块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            background: rgba(0, 212, 198, .08);
            border: 1px solid rgba(0, 212, 198, .15);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        /* ===== 2×2信息卡网格 ===== */
        .features-section {
            background: var(--bg-primary);
        }
        .info-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .info-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            padding: 36px;
            border: 1px solid rgba(255, 255, 255, .04);
            transition: all .35s ease;
            position: relative;
            overflow: hidden;
        }
        .info-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand-gradient);
            opacity: 0;
            transition: opacity .35s ease;
        }
        .info-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 198, .12);
        }
        .info-card:hover::before {
            opacity: 1;
        }
        .info-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 212, 198, .12);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 22px;
            transition: transform .35s ease;
        }
        .info-card:hover .icon {
            transform: scale(1.08);
        }
        .info-card h3 {
            color: var(--text-primary);
            font-size: 21px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .info-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 品牌全景卡 ===== */
        .brand-section {
            background: var(--bg-panel);
        }
        .brand-card {
            background: var(--bg-panel-light);
            border-radius: 32px;
            padding: 52px;
            border: 1px solid rgba(0, 212, 198, .1);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .brand-card::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 198, .12) 0%, transparent 70%);
            pointer-events: none;
        }
        .brand-card .content-wrap {
            display: flex;
            align-items: center;
            gap: 44px;
        }
        .brand-card .text-wrap {
            flex: 1;
        }
        .brand-card .img-wrap {
            flex: 0 0 360px;
        }
        .brand-card .img-wrap img {
            border-radius: 24px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, .4);
            object-fit: cover;
            width: 100%;
            height: auto;
        }
        .brand-card h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .brand-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 28px;
        }
        .brand-card .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-primary);
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-panel) !important;
            border: 1px solid rgba(255, 255, 255, .05) !important;
            border-radius: 20px !important;
            margin-bottom: 16px;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent !important;
            color: var(--text-primary) !important;
            font-size: 17px;
            font-weight: 600;
            padding: 24px 28px;
            box-shadow: none !important;
            transition: all .3s ease;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(0, 212, 198, .06) !important;
            color: var(--brand-primary) !important;
        }
        .accordion-button::after {
            filter: brightness(0) invert(1);
            opacity: .7;
            transition: transform .3s ease;
        }
        .accordion-button:hover {
            background: rgba(0, 212, 198, .04) !important;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 212, 198, .15) !important;
        }
        .accordion-body {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.85;
            padding: 0 28px 24px;
        }

        /* ===== CTA卡 ===== */
        .cta-section {
            padding: 0 0 var(--spacing-section);
            background: var(--bg-primary);
        }
        .cta-card {
            background: var(--brand-gradient);
            border-radius: 32px;
            padding: 56px 48px;
            text-align: center;
            color: #0B1A26;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .15);
            pointer-events: none;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            right: -20px;
            top: -20px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(0, 0, 0, .08);
            pointer-events: none;
        }
        .cta-card h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-card p {
            font-size: 16px;
            opacity: .85;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }
        .cta-card .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-card .btn-dark {
            background: #0B1A26 !important;
            color: var(--brand-primary) !important;
            border-radius: 999px !important;
            padding: 14px 32px !important;
            font-weight: 600;
        }
        .cta-card .btn-dark:hover {
            background: #102433 !important;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
            transform: translateY(-2px);
        }
        .cta-card .btn-light-brand {
            background: rgba(255, 255, 255, .9) !important;
            color: #0B1A26 !important;
            border-radius: 999px !important;
            padding: 14px 32px !important;
            font-weight: 600;
        }
        .cta-card .btn-light-brand:hover {
            background: #fff !important;
            box-shadow: 0 8px 30px rgba(0, 0, 0, .15);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-panel);
            border-top: 1px solid transparent;
            position: relative;
            padding: 72px 0 28px;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--brand-primary), var(--brand-secondary), transparent);
        }
        .site-footer .footer-grid {
            margin-bottom: 48px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 12px;
        }
        .site-footer h4 {
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: all .3s ease;
        }
        .site-footer ul a:hover {
            color: var(--brand-primary);
            padding-left: 4px;
        }
        .site-footer ul li i {
            color: var(--brand-primary);
            width: 20px;
            margin-right: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            color: var(--text-secondary);
            font-size: 13px;
            margin: 0;
        }
        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 198, .1);
            color: var(--brand-primary);
            border: 1px solid rgba(0, 212, 198, .2);
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            transition: all .3s ease;
        }
        .footer-top:hover {
            background: rgba(0, 212, 198, .2);
            color: var(--text-primary);
            box-shadow: 0 0 20px rgba(0, 212, 198, .2);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .brand-card .content-wrap {
                flex-direction: column-reverse;
            }
            .brand-card .img-wrap {
                flex: 0 0 auto;
                width: 100%;
                max-width: 480px;
            }
            .brand-card {
                padding: 40px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 64px;
            }
            .page-hero {
                padding: 140px 0 60px;
            }
            .page-hero h1 {
                font-size: 38px;
            }
            .page-hero .subtitle {
                font-size: 16px;
            }
            .section-title {
                font-size: 28px;
            }
            .info-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .info-card {
                padding: 28px;
            }
            .stats-row {
                gap: 14px;
            }
            .stat-item {
                padding: 20px 24px;
                min-width: 130px;
            }
            .stat-item .number {
                font-size: 30px;
            }
            .brand-card {
                padding: 32px 24px;
                border-radius: 24px;
            }
            .brand-card h2 {
                font-size: 26px;
            }
            .cta-card {
                padding: 40px 24px;
                border-radius: 24px;
            }
            .cta-card h2 {
                font-size: 26px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 375px) {
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-row {
                flex-direction: column;
                align-items: center;
            }
            .stat-item {
                width: 100%;
                max-width: 240px;
            }
        }
        @media (min-width: 1200px) {
            .container {
                max-width: 1200px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B1A26;
            --bg-panel: #122634;
            --bg-panel-light: #162D3D;
            --brand-primary: #00D4C6;
            --brand-secondary: #3AF08A;
            --brand-gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --accent-amber: #FFA94D;
            --danger-red: #FF5D75;
            --text-primary: #F2F7FA;
            --text-secondary: #8FA8B8;
            --text-muted: #6B8798;
            --text-dark: #1F2937;
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-hover: 0 0 0 1px rgba(0, 212, 198, .15), 0 16px 50px rgba(0, 212, 198, .12);
            --transition: all .3s ease;
            --section-gap: 96px;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: var(--transition);
        }

        a:hover {
            color: var(--brand-secondary);
        }

        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-gap) 0;
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 64px;
            }
        }

        .text-gradient {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        .btn {
            border-radius: var(--radius-pill);
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition);
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--brand-gradient);
            color: #06323A;
            border: none;
            box-shadow: 0 6px 24px rgba(0, 212, 198, .25);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #00E0D0 0%, #45F89A 100%);
            color: #06323A;
            box-shadow: 0 8px 32px rgba(0, 212, 198, .4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-outline {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(0, 212, 198, .5);
            color: var(--brand-primary);
        }

        .btn-outline:hover {
            background: rgba(0, 212, 198, .1);
            color: var(--brand-secondary);
            border-color: var(--brand-secondary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 212, 198, .15);
        }

        .btn-outline:active {
            transform: scale(.97);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

        .btn:focus-visible,
        .nav-toggle:focus-visible,
        .nav-item:focus-visible,
        .accordion-button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            box-shadow: 0 0 0 4px rgba(0, 212, 198, .2);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: calc(var(--container-max) + 48px);
            z-index: 1050;
            background: rgba(9, 21, 32, .72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, .18);
            border-radius: var(--radius-pill);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .35);
            transition: box-shadow .3s ease;
        }

        .site-nav.scrolled {
            box-shadow: 0 12px 44px rgba(0, 0, 0, .45), 0 0 0 1px rgba(0, 212, 198, .12);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 16px 10px 24px;
            gap: 12px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--brand-gradient);
            color: #06323A;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(0, 212, 198, .3);
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-item {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-item:hover {
            color: var(--brand-primary);
            background: rgba(0, 212, 198, .06);
        }

        .nav-item.active {
            color: var(--brand-primary);
            font-weight: 600;
            background: rgba(0, 212, 198, .08);
        }

        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 3px;
            border-radius: 3px;
            background: var(--brand-gradient);
        }

        .nav-cta {
            flex-shrink: 0;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, .2);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            color: var(--text-primary);
            font-size: 16px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(0, 212, 198, .1);
        }

        @media (max-width: 992px) {
            .site-nav {
                top: 12px;
                border-radius: 20px;
            }
            .nav-inner {
                flex-wrap: wrap;
                padding: 10px 14px;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                background: rgba(9, 21, 32, .97);
                backdrop-filter: blur(16px);
                border-radius: 18px;
                padding: 12px;
                margin-top: 10px;
                border: 1px solid rgba(0, 212, 198, .15);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-item {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
            }
            .nav-item.active::after {
                display: none;
            }
            .nav-cta {
                margin-left: auto;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 480px) {
            .nav-cta {
                padding: 8px 16px;
                font-size: 13px;
                margin-left: 0;
            }
            .brand-name {
                font-size: 17px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 180px 0 100px;
            background: linear-gradient(90deg, rgba(11, 26, 38, .95) 0%, rgba(11, 26, 38, .78) 50%, rgba(11, 26, 38, .4) 100%),
                url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(180deg, transparent, var(--bg-primary));
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 169, 77, .12);
            border: 1px solid rgba(255, 169, 77, .3);
            color: var(--accent-amber);
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 24px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .page-hero h1 {
            font-size: 64px;
            line-height: 1.15;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }

        .hero-subtitle {
            font-size: 20px;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 15px;
            color: var(--text-secondary);
            opacity: .85;
            max-width: 540px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 140px 0 60px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .hero-subtitle {
                font-size: 17px;
            }
            .hero-desc {
                font-size: 14px;
            }
        }

        /* ===== 图文双栏 ===== */
        .feature-blocks {
            padding: var(--section-gap) 0 40px;
        }

        .feature-block {
            display: flex;
            align-items: center;
            gap: 56px;
            margin-bottom: 96px;
            padding: 40px;
            background: linear-gradient(135deg, rgba(18, 38, 52, .6) 0%, rgba(22, 45, 61, .6) 100%);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .04);
            transition: var(--transition);
        }

        .feature-block:hover {
            border-color: rgba(0, 212, 198, .2);
            box-shadow: var(--shadow-hover);
        }

        .feature-block:nth-child(even) {
            flex-direction: row-reverse;
        }

        .feature-media {
            flex: 1 1 45%;
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-card);
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .feature-block:hover .feature-media img {
            transform: scale(1.04);
        }

        .feature-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 26, 38, .3) 100%);
            border-radius: 20px;
        }

        .feature-content {
            flex: 1 1 55%;
        }

        .feature-tag {
            display: inline-block;
            background: var(--brand-gradient);
            color: #06323A;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .feature-content h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .feature-content p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin-bottom: 20px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            padding: 4px 0;
        }

        .feature-list li i {
            color: var(--brand-secondary);
            margin-top: 4px;
            font-size: 14px;
            flex-shrink: 0;
        }

        @media (max-width: 992px) {
            .feature-block,
            .feature-block:nth-child(even) {
                flex-direction: column;
                gap: 32px;
                padding: 28px;
            }
            .feature-media {
                width: 100%;
                aspect-ratio: 16/10;
            }
        }

        @media (max-width: 520px) {
            .feature-block {
                padding: 20px;
                border-radius: 20px;
                margin-bottom: 40px;
            }
            .feature-content h2 {
                font-size: 22px;
            }
            .feature-media {
                aspect-ratio: 4/3;
            }
        }

        /* ===== 数据徽章条 ===== */
        .stats-bar {
            background: linear-gradient(135deg, rgba(18, 38, 52, .8) 0%, rgba(22, 45, 61, .8) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 80px;
            flex-wrap: wrap;
            border: 1px solid rgba(255, 255, 255, .04);
        }

        .stat-item {
            text-align: center;
            min-width: 160px;
        }

        .stat-number {
            font-size: 40px;
            font-weight: 800;
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-unit {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent-amber);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 1px;
        }

        @media (max-width: 768px) {
            .stats-bar {
                gap: 32px;
                padding: 32px 20px;
            }
            .stat-number {
                font-size: 32px;
            }
            .stat-item {
                min-width: 120px;
            }
        }

        @media (max-width: 520px) {
            .stats-bar {
                gap: 24px;
            }
            .stat-item {
                min-width: 90px;
            }
            .stat-number {
                font-size: 26px;
            }
            .stat-unit {
                font-size: 16px;
            }
        }

        /* ===== 方案卡片区 ===== */
        .section-header {
            text-align: left;
            margin-bottom: 44px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .section-tag {
            display: inline-block;
            background: rgba(0, 212, 198, .1);
            border: 1px solid rgba(0, 212, 198, .25);
            color: var(--brand-primary);
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-top: 8px;
            max-width: 600px;
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .solution-card {
            background: linear-gradient(145deg, var(--bg-panel) 0%, var(--bg-panel-light) 100%);
            border-radius: 24px;
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, .04);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-gradient);
            opacity: 0;
            transition: opacity .3s;
        }

        .solution-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 198, .2);
            box-shadow: var(--shadow-hover);
        }

        .solution-card:hover::before {
            opacity: 1;
        }

        .solution-card-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(0, 212, 198, .1);
            color: var(--brand-primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .solution-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .solution-card .solution-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent-amber);
            background: rgba(255, 169, 77, .1);
            border: 1px solid rgba(255, 169, 77, .2);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            width: fit-content;
        }

        .solution-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        .solution-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
            transition: var(--transition);
        }

        .solution-link:hover {
            color: var(--brand-secondary);
            gap: 10px;
        }

        @media (max-width: 992px) {
            .solutions-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: radial-gradient(ellipse at 50% 50%, rgba(18, 38, 52, .4) 0%, transparent 70%);
        }

        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-panel);
            border: 1px solid rgba(255, 255, 255, .05);
            border-radius: 20px !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .accordion-item:hover {
            border-color: rgba(0, 212, 198, .2);
        }

        .accordion-item:not(:first-of-type) {
            border-top: 1px solid rgba(255, 255, 255, .05);
        }

        .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            padding: 22px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: rgba(0, 212, 198, .04);
            color: var(--brand-primary);
            box-shadow: none;
        }

        .accordion-button::after {
            display: none;
        }

        .accordion-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 212, 198, .1);
            color: var(--brand-primary);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

        .accordion-icon::before {
            content: '+';
            font-family: sans-serif;
        }

        .accordion-button[aria-expanded="true"] .accordion-icon {
            background: var(--brand-gradient);
            color: #06323A;
        }

        .accordion-button[aria-expanded="true"] .accordion-icon::before {
            content: '×';
            font-size: 18px;
        }

        .accordion-body {
            padding: 0 28px 24px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.9;
            background: rgba(0, 0, 0, .06);
        }

        .accordion-button:hover {
            color: var(--brand-primary);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding-bottom: 120px;
        }

        .cta-card {
            background: var(--brand-gradient);
            border-radius: 32px;
            padding: 64px 56px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 212, 198, .25);
        }

        .cta-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 70% 20%, rgba(255, 255, 255, .2) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: 36px;
            font-weight: 800;
            color: #06323A;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 16px;
            color: rgba(6, 50, 58, .8);
            margin-bottom: 24px;
            max-width: 480px;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn {
            background: #06323A;
            color: var(--brand-primary);
            border: none;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn:hover {
            background: #0A4350;
            color: var(--brand-secondary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(6, 50, 58, .3);
        }

        @media (max-width: 768px) {
            .cta-card {
                padding: 40px 24px;
                border-radius: 24px;
            }
            .cta-card h2 {
                font-size: 26px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #08141D;
            border-top: 1px solid rgba(0, 212, 198, .15);
            padding-top: 64px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-gradient);
            opacity: .6;
        }

        .footer-grid {
            margin-bottom: 40px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
            max-width: 320px;
        }

        .site-footer h4 {
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer ul li a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
        }

        .site-footer ul li a:hover {
            color: var(--brand-primary);
            padding-left: 4px;
        }

        .site-footer ul li i {
            margin-right: 8px;
            color: var(--brand-primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
            margin: 0;
        }

        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 198, .08);
            border: 1px solid rgba(0, 212, 198, .2);
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
        }

        .footer-top:hover {
            background: rgba(0, 212, 198, .15);
            color: var(--brand-secondary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 212, 198, .15);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding-top: 40px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        /* ===== 动画 ===== */
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .7;
                transform: scale(.92);
            }
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-amber);
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: category4 */
/* ===== Design Tokens ===== */
        :root {
            --bg: #0B1A26;
            --panel: #122634;
            --panel-2: #162D3D;
            --primary: #00D4C6;
            --accent: #3AF08A;
            --gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --amber: #FFA94D;
            --danger: #FF5D75;
            --text: #F2F7FA;
            --text-2: #8FA8B8;
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-hover: 0 0 0 1px rgba(0, 212, 198, .15), 0 16px 50px rgba(0, 212, 198, .12);
            --transition: .3s ease;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .3s;
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input {
            font: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            padding: 0 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: 999px;
            padding: 14px 32px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-primary {
            background: var(--gradient);
            color: #062a2a;
            box-shadow: 0 4px 20px rgba(0, 212, 198, .25);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #0fe0d2, #54ff9c);
            color: #062a2a;
            box-shadow: 0 8px 30px rgba(0, 212, 198, .4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, .06);
            color: var(--primary);
            border: 1px solid rgba(0, 212, 198, .35);
        }

        .btn-secondary:hover {
            background: rgba(0, 212, 198, .12);
            border-color: rgba(0, 212, 198, .6);
            color: var(--primary);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: 14px;
        }

        /* ===== Navigation ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 24px;
            right: 24px;
            z-index: 1050;
            border-radius: 999px;
            background: rgba(9, 21, 32, .72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, .2);
            box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
            transition: box-shadow .3s;
        }

        .site-nav.scrolled {
            box-shadow: 0 12px 48px rgba(0, 0, 0, .55), 0 0 0 1px rgba(0, 212, 198, .12);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            padding: 0 20px;
            border-radius: 999px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #062a2a;
            font-size: 16px;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-item {
            padding: 8px 16px;
            border-radius: 999px;
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-item:hover {
            color: var(--text);
            background: rgba(0, 212, 198, .1);
        }

        .nav-item.active {
            color: var(--primary);
            background: rgba(0, 212, 198, .14);
            font-weight: 600;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 50%;
            width: 42px;
            height: 42px;
            color: var(--text);
            font-size: 17px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .3s;
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 150px 0 90px;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 26, 38, .88) 0%, rgba(11, 26, 38, .78) 50%, rgba(11, 26, 38, .92) 100%);
        }

        .hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 169, 77, .12);
            border: 1px solid rgba(255, 169, 77, .4);
            color: var(--amber);
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--amber);
            animation: pulse 1.8s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .45;
                transform: scale(.8);
            }
        }

        .hero h1 {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 1px;
            margin: 0 0 14px;
            color: var(--text);
        }

        .hero-sub {
            font-size: 18px;
            color: var(--text-2);
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-2);
        }

        .hero-meta i {
            color: var(--primary);
            font-size: 12px;
        }

        /* ===== Sections ===== */
        .section {
            padding: 88px 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-head .tag {
            display: inline-block;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
        }

        .section-head p {
            color: var(--text-2);
            font-size: 16px;
            max-width: 520px;
            margin: 8px auto 0;
        }

        /* ===== Info Cards ===== */
        .info-card {
            background: var(--panel);
            border-radius: 24px;
            padding: 34px;
            height: 100%;
            border: 1px solid rgba(255, 255, 255, .06);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .info-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .info-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 212, 198, .3);
        }

        .info-card:hover::after {
            opacity: 1;
        }

        .info-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #062a2a;
            margin-bottom: 22px;
        }

        .info-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .info-card p {
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== Brand Card ===== */
        .brand-card-section {
            padding: 0 0 88px;
        }

        .brand-card {
            background: linear-gradient(135deg, #132332 0%, #162D3D 100%);
            border-radius: 32px;
            overflow: hidden;
            display: flex;
            align-items: center;
            border: 1px solid rgba(0, 212, 198, .15);
            box-shadow: var(--shadow);
        }

        .brand-card-content {
            padding: 52px;
            flex: 1;
        }

        .brand-card-content .tag {
            display: inline-block;
            font-size: 13px;
            color: var(--amber);
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .brand-card-content h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .brand-card-content p {
            color: var(--text-2);
            font-size: 16px;
            line-height: 1.8;
            max-width: 480px;
        }

        .data-badges {
            display: flex;
            gap: 16px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .data-badge {
            background: var(--gradient);
            border-radius: 18px;
            padding: 18px 22px;
            min-width: 120px;
            text-align: center;
        }

        .data-badge .num {
            font-size: 30px;
            font-weight: 800;
            color: #062a2a;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            display: block;
        }

        .data-badge .label {
            font-size: 12px;
            color: rgba(6, 42, 42, .65);
            font-weight: 600;
        }

        .brand-card-image {
            flex: 1;
            min-height: 360px;
            position: relative;
        }

        .brand-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(18, 38, 52, .4) 0%, transparent 60%);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 0 0 88px;
        }

        .faq-item {
            background: var(--panel);
            border-radius: 20px;
            margin-bottom: 14px;
            border: 1px solid rgba(255, 255, 255, .06);
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item.open {
            border-color: rgba(0, 212, 198, .35);
        }

        .faq-question {
            padding: 24px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
        }

        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 212, 198, .12);
            border: 1px solid rgba(0, 212, 198, .3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            font-weight: 400;
            transition: transform .35s;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #062a2a;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s ease;
            padding: 0 28px;
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.85;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0 0 96px;
        }

        .cta-card {
            background: var(--gradient);
            border-radius: 32px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .12);
        }

        .cta-card h2 {
            font-size: 30px;
            font-weight: 800;
            color: #062a2a;
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .cta-card>p {
            color: rgba(6, 42, 42, .72);
            font-size: 16px;
            max-width: 440px;
            margin: 0 auto 30px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            max-width: 560px;
            margin: 0 auto;
        }

        .cta-form .form-control {
            flex: 1;
            min-width: 240px;
            border-radius: 999px;
            border: 1px solid rgba(6, 42, 42, .18);
            padding: 14px 24px;
            background: rgba(255, 255, 255, .65);
            color: #062a2a;
            font-size: 15px;
            transition: all .3s;
        }

        .cta-form .form-control::placeholder {
            color: rgba(6, 42, 42, .5);
        }

        .cta-form .form-control:focus {
            background: #fff;
            border-color: #062a2a;
            box-shadow: 0 0 0 4px rgba(6, 42, 42, .12);
            outline: none;
        }

        .cta-form .btn-submit {
            background: #062a2a;
            color: var(--accent);
            border: none;
            border-radius: 999px;
            padding: 14px 32px;
            font-weight: 700;
            cursor: pointer;
            transition: all .3s;
        }

        .cta-form .btn-submit:hover {
            background: #0a3535;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(6, 42, 42, .3);
        }

        .cta-privacy {
            margin-top: 18px;
            font-size: 12px;
            color: rgba(6, 42, 42, .55);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #08141D;
            border-top: 1px solid rgba(0, 212, 198, .18);
            padding-top: 64px;
        }

        .footer-grid {
            padding-bottom: 40px;
        }

        .footer-brand p {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 16px;
        }

        .site-footer h4 {
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer ul {
            padding: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul li a {
            color: var(--text-2);
            font-size: 14px;
            transition: color .3s;
        }

        .site-footer ul li a:hover {
            color: var(--primary);
        }

        .site-footer ul li i {
            color: var(--primary);
            width: 20px;
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            color: var(--text-2);
            font-size: 13px;
            margin: 0;
        }

        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-2);
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, .1);
            padding: 8px 18px;
            border-radius: 999px;
            transition: all .3s;
        }

        .footer-top:hover {
            color: var(--primary);
            border-color: rgba(0, 212, 198, .4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 48px;
            }
            .brand-card {
                flex-direction: column;
            }
            .brand-card-image {
                width: 100%;
                min-height: 280px;
            }
        }

        @media (max-width: 991px) {
            .nav-menu {
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(9, 21, 32, .96);
                backdrop-filter: blur(16px);
                border-radius: 24px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                opacity: 0;
                pointer-events: none;
                transform: translateY(-10px);
                transition: all .35s;
                border: 1px solid rgba(0, 212, 198, .18);
                box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
                gap: 4px;
            }
            .nav-menu.open {
                opacity: 1;
                pointer-events: auto;
                transform: none;
            }
            .nav-item {
                padding: 12px 20px;
                text-align: center;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .section {
                padding: 64px 0;
            }
            .section-head h2 {
                font-size: 30px;
            }
            .hero {
                padding: 130px 0 70px;
            }
            .hero h1 {
                font-size: 40px;
            }
            .brand-card-content {
                padding: 36px;
            }
            .cta-card {
                padding: 40px 28px;
            }
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .data-badge {
                min-width: 90px;
                padding: 14px 12px;
            }
            .data-badge .num {
                font-size: 24px;
            }
            .info-card {
                padding: 26px;
            }
            .brand-card-content {
                padding: 28px;
            }
            .brand-card-content p {
                font-size: 15px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
            .cta-form .form-control {
                min-width: 100%;
            }
            .cta-form .btn-submit {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .brand-name {
                font-size: 18px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }
            .site-nav {
                left: 12px;
                right: 12px;
                top: 12px;
            }
            .nav-inner {
                padding: 0 14px;
                height: 58px;
            }
            .hero {
                padding: 120px 0 60px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero-meta {
                gap: 8px;
            }
            .hero-meta span {
                font-size: 12px;
                padding: 5px 12px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .cta-card h2 {
                font-size: 24px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0B1A26;
            --panel: #122634;
            --panel-2: #162D3D;
            --brand: #00D4C6;
            --brand-2: #3AF08A;
            --gradient: linear-gradient(135deg, #00D4C6 0%, #3AF08A 100%);
            --accent: #FFA94D;
            --danger: #FF5D75;
            --text: #F2F7FA;
            --muted: #8FA8B8;
            --text-dark: #1F2937;
            --radius-lg: 28px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow: 0 12px 40px rgba(0, 0, 0, .35);
            --shadow-brand: 0 0 0 1px rgba(0, 212, 198, .15), 0 16px 50px rgba(0, 212, 198, .12);
            --transition: all .3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1080;
            padding: 0 24px;
            pointer-events: none;
        }

        .nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(9, 21, 32, .72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 212, 198, .2);
            border-radius: 999px;
            height: 68px;
            padding: 0 20px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 8px 32px rgba(0, 0, 0, .3);
            pointer-events: auto;
            transition: var(--transition);
        }

        .site-nav.scrolled .nav-inner {
            box-shadow: 0 12px 40px rgba(0, 0, 0, .5), 0 0 0 1px rgba(0, 212, 198, .15);
            background: rgba(9, 21, 32, .88);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #07222A;
            font-size: 16px;
            font-weight: 700;
            box-shadow: 0 0 20px rgba(0, 212, 198, .25);
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .5px;
        }

        .brand-name .brand-gradient {
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-item {
            position: relative;
            padding: 8px 16px;
            border-radius: 999px;
            color: var(--muted);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-item:hover {
            color: var(--brand);
            background: rgba(0, 212, 198, .08);
        }

        .nav-item.active {
            color: var(--brand);
            background: rgba(0, 212, 198, .12);
            font-weight: 600;
        }

        .nav-item.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient);
        }

        .nav-cta {
            padding: 10px 28px !important;
            border-radius: 999px !important;
            font-size: 14px !important;
            font-weight: 600;
            flex-shrink: 0;
            background: var(--gradient) !important;
            color: #07222A !important;
            border: none !important;
            box-shadow: 0 4px 20px rgba(0, 212, 198, .3);
            transition: var(--transition);
        }

        .nav-cta:hover {
            box-shadow: 0 6px 28px rgba(0, 212, 198, .5);
            transform: translateY(-2px);
            color: #07222A !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, .2);
            color: var(--text);
            width: 42px;
            height: 42px;
            border-radius: 12px;
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== 通用按钮 ===== */
        .btn {
            border-radius: 999px;
            font-weight: 600;
            padding: 14px 36px;
            transition: var(--transition);
            font-size: 15px;
            border: none;
        }

        .btn-primary {
            background: var(--gradient);
            color: #07222A;
            box-shadow: 0 4px 20px rgba(0, 212, 198, .3);
        }

        .btn-primary:hover {
            background: var(--gradient);
            filter: brightness(1.1);
            box-shadow: 0 6px 30px rgba(0, 212, 198, .5);
            color: #07222A;
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(0, 212, 198, .5);
            color: var(--brand);
        }

        .btn-outline:hover {
            background: rgba(0, 212, 198, .12);
            color: var(--brand);
            border-color: var(--brand);
        }

        .btn-lg {
            padding: 16px 44px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(270deg, rgba(11, 26, 38, .35) 0%, rgba(11, 26, 38, .88) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(0, 212, 198, .15), transparent 55%);
            z-index: 2;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 720px;
            margin-left: 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 169, 77, .15);
            border: 1px solid rgba(255, 169, 77, .4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: .5px;
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 12px var(--accent);
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .6;
                transform: scale(.8);
            }
        }

        .page-hero h1 {
            font-size: 56px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 18px;
            color: var(--text);
        }

        .page-hero h1 .gradient-text {
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--muted);
            max-width: 560px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding: 16px 24px;
            background: rgba(18, 38, 52, .7);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            font-size: 14px;
            color: var(--muted);
            max-width: fit-content;
            backdrop-filter: blur(8px);
        }

        .hero-meta i {
            color: var(--brand);
            margin-right: 6px;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
        }

        .hero-meta .sep {
            width: 1px;
            height: 16px;
            background: rgba(255, 255, 255, .15);
            margin: 0 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 90px 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--brand);
            background: rgba(0, 212, 198, .1);
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-desc {
            color: var(--muted);
            font-size: 16px;
            max-width: 600px;
        }

        /* ===== 图文双栏 ===== */
        .split-section {
            padding: 70px 0;
        }

        .split-section+.split-section {
            padding-top: 0;
        }

        .split-grid {
            display: flex;
            align-items: center;
            gap: 56px;
            flex-wrap: wrap;
        }

        .split-grid.reverse .split-media {
            order: 2;
        }

        .split-grid.reverse .split-text {
            order: 1;
        }

        .split-media {
            flex: 1 1 45%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow);
        }

        .split-media img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .split-media:hover img {
            transform: scale(1.03);
        }

        .split-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 26, 38, .4));
            pointer-events: none;
        }

        .split-text {
            flex: 1 1 45%;
        }

        .split-text .badge-line {
            width: 56px;
            height: 3px;
            border-radius: 3px;
            background: var(--gradient);
            margin-bottom: 20px;
        }

        .split-text h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .split-text p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .split-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .split-text .feature-list li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text);
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }

        .split-text .feature-list li:last-child {
            border-bottom: none;
        }

        .split-text .feature-list i {
            color: var(--brand);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ===== 数据徽章条 ===== */
        .stats-strip {
            padding: 70px 0;
        }

        .stats-strip .container {
            background: linear-gradient(135deg, rgba(0, 212, 198, .08), rgba(58, 240, 138, .06));
            border: 1px solid rgba(0, 212, 198, .12);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 16px 24px;
            border-radius: var(--radius-md);
            position: relative;
        }

        .stat-item+.stat-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, .08);
        }

        .stat-number {
            font-size: 44px;
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-number.accent {
            background: none;
            -webkit-text-fill-color: var(--accent);
            color: var(--accent);
        }

        .stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--muted);
            display: block;
            margin-top: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 8px;
            letter-spacing: .5px;
        }

        /* ===== 内容列表卡 ===== */
        .service-list-section {
            padding: 70px 0;
        }

        .service-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .service-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, .05);
            border-radius: 20px;
            padding: 28px 32px;
            transition: var(--transition);
            cursor: default;
        }

        .service-item:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 212, 198, .25);
            box-shadow: var(--shadow-brand);
        }

        .service-item .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #07222A;
            flex-shrink: 0;
        }

        .service-item .service-icon.alt {
            background: rgba(255, 169, 77, .2);
            color: var(--accent);
            border: 1px solid rgba(255, 169, 77, .3);
        }

        .service-item .service-body {
            flex: 1;
        }

        .service-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .service-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .service-item .service-more {
            align-self: center;
            color: var(--brand);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .service-item .service-more i {
            margin-left: 4px;
            transition: transform .3s ease;
        }

        .service-item:hover .service-more i {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 70px 0;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--panel);
            border: 1px solid rgba(255, 255, 255, .05);
            border-radius: 20px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: rgba(0, 212, 198, .25);
            box-shadow: var(--shadow-brand);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
            gap: 20px;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 212, 198, .15);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-icon {
            background: var(--gradient);
            color: #07222A;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 28px 24px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.9;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 40px 0 90px;
        }

        .cta-card {
            background: var(--gradient);
            border-radius: 32px;
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .12);
            top: -120px;
            right: -80px;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            bottom: -60px;
            left: 40px;
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 800;
            color: #07222A;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(7, 34, 42, .8);
            margin-bottom: 28px;
            position: relative;
            z-index: 2;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-actions .btn {
            background: #07222A;
            color: var(--brand);
            border-radius: 999px;
        }

        .cta-actions .btn:hover {
            background: #0B1A26;
            color: var(--brand);
        }

        .cta-actions .btn-ghost {
            background: transparent;
            border: 2px solid rgba(7, 34, 42, .4);
            color: #07222A;
        }

        .cta-actions .btn-ghost:hover {
            border-color: #07222A;
            background: transparent;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            border-top: 1px solid transparent;
            position: relative;
            background: var(--panel);
            padding: 56px 0 24px;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--gradient);
            opacity: .6;
        }

        .footer-grid {
            gap: 32px 0;
            margin-bottom: 40px;
        }

        .footer-brand .brand-logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .site-footer h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--gradient);
            border-radius: 2px;
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        .site-footer ul li a {
            color: var(--muted);
        }

        .site-footer ul li a:hover {
            color: var(--brand);
            padding-left: 4px;
        }

        .site-footer ul li i {
            width: 20px;
            color: var(--brand);
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom p {
            color: var(--muted);
            font-size: 13px;
            margin: 0;
        }

        .footer-top {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 212, 198, .1);
            border: 1px solid rgba(0, 212, 198, .2);
            color: var(--brand);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-top:hover {
            background: rgba(0, 212, 198, .2);
            color: var(--brand);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 76px;
                left: 16px;
                right: 16px;
                background: rgba(9, 21, 32, .96);
                border: 1px solid rgba(0, 212, 198, .15);
                border-radius: 24px;
                padding: 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                backdrop-filter: blur(20px);
                box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-item {
                padding: 14px 20px;
                border-radius: 14px;
            }

            .nav-item.active::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                margin-left: auto;
                margin-right: 8px;
                padding: 9px 18px !important;
                font-size: 13px !important;
            }

            .page-hero h1 {
                font-size: 44px;
            }

            .section {
                padding: 64px 0;
            }

            .section-title {
                font-size: 30px;
            }

            .split-media img {
                height: 300px;
            }

            .stats-strip .container {
                grid-template-columns: repeat(3, 1fr);
                padding: 32px 16px;
            }

            .stat-number {
                font-size: 34px;
            }
        }

        @media (max-width: 767.98px) {
            .site-nav {
                padding: 0 12px;
                top: 10px;
            }

            .nav-inner {
                height: 60px;
                padding: 0 12px 0 16px;
                border-radius: 999px;
            }

            .brand-name {
                font-size: 18px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .page-hero {
                min-height: 520px;
                padding: 120px 0 60px;
            }

            .page-hero h1 {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .hero-meta {
                flex-direction: column;
                gap: 8px;
                width: 100%;
            }

            .hero-meta .sep {
                display: none;
            }

            .split-grid {
                gap: 32px;
            }

            .split-grid.reverse .split-media {
                order: 1;
            }

            .split-grid.reverse .split-text {
                order: 2;
            }

            .split-media {
                flex-basis: 100%;
            }

            .split-text {
                flex-basis: 100%;
            }

            .stats-strip .container {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stat-item+.stat-item::before {
                display: none;
            }

            .stat-number {
                font-size: 36px;
            }

            .service-item {
                flex-direction: column;
                padding: 24px;
            }

            .service-item .service-more {
                align-self: flex-start;
            }

            .cta-card {
                padding: 40px 24px;
                border-radius: 24px;
            }

            .cta-card h2 {
                font-size: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }

            .section-title {
                font-size: 26px;
            }

            .split-media img {
                height: 220px;
            }

            .split-text h2 {
                font-size: 24px;
            }

            .cta-actions .btn {
                width: 100%;
                text-align: center;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 20px 18px;
            }

            .service-item .service-icon {
                width: 44px;
                height: 44px;
                font-size: 16px;
            }
        }