/* roulang page: index */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }
        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }
        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .hero-overlay-nav {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 999px;
            padding: 0.35rem;
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.25rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .hero-overlay-nav .hero-tag {
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
            color: #44403c;
        }
        .hero-overlay-nav .hero-tag:hover {
            background: #fff7ed;
            color: #ea580c;
        }
        .hero-overlay-nav .hero-tag.hero-tag-active {
            background: #f97316;
            color: #fff;
            font-weight: 600;
        }

        .scroll-track {
            display: flex;
            gap: 1rem;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 0.5rem;
            scrollbar-width: thin;
            scrollbar-color: #d6d3d1 transparent;
        }
        .scroll-track::-webkit-scrollbar {
            height: 5px;
        }
        .scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }
        .scroll-track::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 10px;
        }
        .scroll-track>* {
            scroll-snap-align: start;
            flex-shrink: 0;
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .card-hover-lift:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }
        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
            }
        }

        .guarantee-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }
        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.02rem;
            color: #1c1917;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            transition: transform var(--transition-smooth);
            font-size: 0.8rem;
            color: #a8a29e;
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            color: #f97316;
        }
        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem 1.5rem;
            color: #57534e;
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .tier-card {
            border: 2px solid #e7e5e4;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            background: #fff;
            transition: all var(--transition-smooth);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .tier-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .tier-card.tier-featured {
            border-color: #f97316;
            background: linear-gradient(180deg, #fff7ed 0%, #fff 30%);
            box-shadow: 0 8px 32px rgba(249, 115, 22, 0.12);
        }
        .tier-card.tier-featured::before {
            content: '最受欢迎';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: #f97316;
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 0.3rem 1.2rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .hero-overlay-nav {
                border-radius: 20px;
                padding: 0.3rem;
                gap: 0.15rem;
            }
            .hero-overlay-nav .hero-tag {
                padding: 0.4rem 0.75rem;
                font-size: 0.78rem;
            }
            .nav-channel-tag {
                font-size: 0.78rem;
                padding: 0.35rem 0.65rem;
            }
            .tier-card {
                padding: 1.5rem 1rem;
            }
        }
        @media (max-width: 520px) {
            .btn-brand,
            .btn-outline-light {
                padding: 0.6rem 1.3rem;
                font-size: 0.9rem;
            }
            .container-custom {
                padding-left: 0.75rem;
                padding-right: 0.75rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }
        input {
            font-family: inherit;
        }
        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }
        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }
        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }
        .hero-overlay-nav {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 999px;
            padding: 0.35rem;
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.25rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .hero-overlay-nav .hero-tag {
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
            color: #44403c;
        }
        .hero-overlay-nav .hero-tag:hover {
            background: #fff7ed;
            color: #ea580c;
        }
        .hero-overlay-nav .hero-tag.hero-tag-active {
            background: #f97316;
            color: #fff;
            font-weight: 600;
        }
        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .card-hover-lift:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }
        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }
        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }
        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }
        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            color: #1c1917;
            transition: color var(--transition-fast);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.85rem;
            color: #a8a29e;
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item[open] summary {
            color: #ea580c;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: #ea580c;
        }
        .faq-item .faq-body {
            padding: 0 1.5rem 1.3rem;
            font-size: 0.95rem;
            color: #57534e;
            line-height: 1.75;
        }
        .countdown-ring {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 3px solid rgba(255, 255, 255, 0.35);
            position: relative;
            flex-shrink: 0;
        }
        @media (max-width: 640px) {
            .countdown-ring {
                width: 60px;
                height: 60px;
                border-width: 2px;
            }
        }
        .countdown-ring .cd-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        @media (max-width: 640px) {
            .countdown-ring .cd-num {
                font-size: 1.25rem;
            }
        }
        .countdown-ring .cd-label {
            font-size: 0.65rem;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            position: absolute;
            bottom: -22px;
            left: 50%;
            transform: translateX(-50%);
            white-space: nowrap;
        }
        .sellpoint-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition-smooth);
            flex-shrink: 0;
        }
        .sellpoint-dot.active-dot {
            background: #fff;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.7);
            width: 28px;
            border-radius: 999px;
        }
        .sellpoint-slide {
            opacity: 0;
            transition: opacity 0.5s ease;
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none;
        }
        .sellpoint-slide.active-slide {
            opacity: 1;
            pointer-events: auto;
        }
        .section-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, #e7e5e4, transparent);
            margin: 0 auto;
            max-width: 200px;
        }
        .pricing-card {
            border: 2px solid #e7e5e4;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            background: #fff;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .pricing-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .pricing-card.featured-plan {
            border-color: #f97316;
            background: linear-gradient(180deg, #fff7ed 0%, #fff 30%);
            box-shadow: 0 4px 24px rgba(249, 115, 22, 0.12);
        }
        .pricing-card.featured-plan::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: #f97316;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem !important;
                line-height: 1.3 !important;
            }
            .hero-subtitle {
                font-size: 1rem !important;
            }
            .countdown-ring {
                width: 56px;
                height: 56px;
            }
            .countdown-ring .cd-num {
                font-size: 1.1rem;
            }
            .countdown-ring .cd-label {
                font-size: 0.6rem;
                bottom: -18px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem !important;
                line-height: 1.35 !important;
            }
            .countdown-ring {
                width: 48px;
                height: 48px;
            }
            .countdown-ring .cd-num {
                font-size: 0.95rem;
            }
            .countdown-ring .cd-label {
                font-size: 0.55rem;
                bottom: -16px;
            }
            .pricing-card {
                padding: 1.5rem 1rem;
            }
        }
        .scene-card {
            border-radius: var(--radius-2xl);
            overflow: hidden;
            background: #fff;
            border: 1px solid #e7e5e4;
            transition: all var(--transition-smooth);
        }
        .scene-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #fdba74;
        }
        .scene-card .scene-img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .scene-card .scene-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scene-card:hover .scene-img-wrap img {
            transform: scale(1.05);
        }
        .stat-block {
            text-align: center;
            padding: 1.5rem;
        }
        .stat-block .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: #f97316;
            line-height: 1.2;
        }
        @media (max-width: 640px) {
            .stat-block .stat-num {
                font-size: 1.8rem;
            }
        }
        .stat-block .stat-desc {
            font-size: 0.9rem;
            color: #78716c;
            margin-top: 0.3rem;
        }

/* roulang page: category2 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }

        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .hero-overlay-nav {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 999px;
            padding: 0.35rem;
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.25rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }

        .hero-overlay-nav .hero-tag {
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
            color: #44403c;
        }

        .hero-overlay-nav .hero-tag:hover {
            background: #fff7ed;
            color: #ea580c;
        }

        .hero-overlay-nav .hero-tag.hero-tag-active {
            background: #f97316;
            color: #fff;
            font-weight: 600;
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(239, 68, 68, 0);
            }
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }

        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }

        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1.02rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            color: #1c1917;
            transition: color var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: #ea580c;
        }

        .faq-item summary .faq-icon {
            transition: transform var(--transition-smooth);
            font-size: 0.9rem;
            color: #f97316;
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: #57534e;
            line-height: 1.75;
            font-size: 0.95rem;
        }

        .section-title-accent {
            position: relative;
            display: inline-block;
        }

        .section-title-accent::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 4px;
            background: linear-gradient(90deg, #f97316, #fdba74);
            border-radius: 2px;
        }

        .stat-number {
            font-variant-numeric: tabular-nums;
            font-feature-settings: "tnum";
            letter-spacing: -0.02em;
        }

        .clip-diagonal {
            clip-path: polygon(6% 0%, 100% 0%, 100% 94%, 0% 100%);
        }

        @media (max-width: 768px) {
            .clip-diagonal {
                clip-path: polygon(0% 0%, 100% 0%, 100% 96%, 0% 100%);
            }
        }

        .glow-orange {
            box-shadow: 0 0 40px rgba(249, 115, 22, 0.18), 0 0 80px rgba(249, 115, 22, 0.06);
        }

        .pricing-card-featured {
            border: 2px solid #f97316;
            box-shadow: 0 12px 40px rgba(249, 115, 22, 0.18), 0 4px 16px rgba(0, 0, 0, 0.06);
            position: relative;
            z-index: 2;
            transform: scale(1.03);
            background: #fff;
        }

        @media (max-width: 768px) {
            .pricing-card-featured {
                transform: scale(1);
            }
        }

        .scroll-track {
            scrollbar-width: thin;
            scrollbar-color: #d6d3d1 transparent;
            -webkit-overflow-scrolling: touch;
        }

        .scroll-track::-webkit-scrollbar {
            height: 4px;
        }

        .scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .scroll-track::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 999px;
        }

        @media (max-width: 1023px) {
            #mainNav {
                -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 3%, #000 97%, transparent 100%);
                mask-image: linear-gradient(to right, transparent 0%, #000 3%, #000 97%, transparent 100%);
            }
        }

/* roulang page: category3 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }

        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }

        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid #d6d3d1;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-dark:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff7ed;
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .badge-accent {
            display: inline-block;
            background: #22c55e;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }

        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }

        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: #1c1917;
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: #a8a29e;
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }

        .faq-item[open] summary {
            color: #ea580c;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: #ea580c;
        }

        .faq-item .faq-content {
            padding: 0 1.5rem 1.3rem;
            font-size: 0.95rem;
            line-height: 1.75;
            color: #57534e;
        }

        .countdown-block {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 999px;
            padding: 0.55rem 1.4rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .countdown-num {
            display: inline-block;
            background: #fff;
            color: #1c1917;
            font-weight: 700;
            font-size: 1.1rem;
            min-width: 2.2rem;
            text-align: center;
            padding: 0.25rem 0.4rem;
            border-radius: 8px;
            letter-spacing: 0.03em;
            font-variant-numeric: tabular-nums;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
        }

        .countdown-sep {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            animation: blink-sep 1s step-end infinite;
        }

        @keyframes blink-sep {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .section-spacing {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section-spacing {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }

        @media (min-width: 1024px) {
            .section-spacing {
                padding-top: 7rem;
                padding-bottom: 7rem;
            }
        }

        .hero-replay-overlay {
            background: linear-gradient(180deg,
                    rgba(12, 10, 9, 0.55) 0%,
                    rgba(12, 10, 9, 0.72) 40%,
                    rgba(12, 10, 9, 0.88) 100%);
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }

        .pricing-card {
            border: 2px solid #e7e5e4;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            transition: all var(--transition-smooth);
            background: #fff;
            position: relative;
        }

        .pricing-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .pricing-card.featured {
            border-color: #f97316;
            background: linear-gradient(180deg, #fff7ed 0%, #fff 30%);
            box-shadow: 0 4px 24px rgba(249, 115, 22, 0.15);
        }

        .pricing-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: #f97316;
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 0.25rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: #ea580c;
            background: #fff7ed;
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.75rem;
        }

        .replay-card-img-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            aspect-ratio: 16 / 9;
        }

        .replay-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .card-hover-lift:hover .replay-card-img-wrap img {
            transform: scale(1.06);
        }

        .replay-duration-tag {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.78);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            letter-spacing: 0.02em;
        }

        .scroll-track::-webkit-scrollbar {
            height: 4px;
        }

        .scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .scroll-track::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 999px;
        }

        @media (max-width: 767px) {
            .nav-channel-tag {
                font-size: 0.8rem;
                padding: 0.38rem 0.7rem;
            }
            .countdown-num {
                font-size: 0.9rem;
                min-width: 1.7rem;
                padding: 0.2rem 0.3rem;
            }
            .countdown-block {
                padding: 0.4rem 1rem;
                gap: 0.3rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .btn-brand,
            .btn-outline-light,
            .btn-outline-dark {
                font-size: 0.9rem;
                padding: 0.6rem 1.3rem;
            }
        }

/* roulang page: category4 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }

        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #f97316;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid #f97316;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-brand:hover {
            background: #fff7ed;
            border-color: #ea580c;
            color: #ea580c;
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .badge-gold {
            display: inline-block;
            background: #f59e0b;
            color: #1c1917;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .explosion-tag {
            position: absolute;
            top: -12px;
            right: -20px;
            background: #ef4444;
            color: #fff;
            font-weight: 800;
            font-size: 0.85rem;
            padding: 0.4rem 1.2rem;
            border-radius: 8px;
            transform: rotate(8deg);
            box-shadow: 0 4px 18px rgba(239, 68, 68, 0.45);
            letter-spacing: 0.05em;
            z-index: 5;
            animation: float-tag 3s ease-in-out infinite;
        }

        @keyframes float-tag {
            0%,
            100% {
                transform: rotate(8deg) translateY(0);
            }
            50% {
                transform: rotate(8deg) translateY(-6px);
            }
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }

        .faq-item summary {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: #1c1917;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            list-style: none;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: #a8a29e;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: #f97316;
        }

        .faq-item .faq-content {
            padding: 0 1.5rem 1.2rem;
            color: #57534e;
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .section-title-bar {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 0.5rem;
        }

        .section-title-bar::before {
            content: '';
            display: block;
            width: 4px;
            height: 28px;
            background: linear-gradient(180deg, #f97316 0%, #ea580c 100%);
            border-radius: 4px;
            flex-shrink: 0;
        }

        .hero-overlay-nav {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 999px;
            padding: 0.35rem;
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.25rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }

        .hero-overlay-nav .hero-tag {
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            cursor: pointer;
            color: #44403c;
        }

        .hero-overlay-nav .hero-tag:hover {
            background: #fff7ed;
            color: #ea580c;
        }

        .hero-overlay-nav .hero-tag.hero-tag-active {
            background: #f97316;
            color: #fff;
            font-weight: 600;
        }

        .pricing-card {
            border: 2px solid #e7e5e4;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            background: #fff;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .pricing-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .pricing-card.featured {
            border-color: #f97316;
            background: linear-gradient(180deg, #fff7ed 0%, #fff 30%);
            box-shadow: 0 4px 24px rgba(249, 115, 22, 0.15);
        }

        .pricing-card.featured::before {
            content: '推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: #f97316;
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 0.25rem 1rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        @media (max-width: 768px) {
            .stat-number {
                font-size: 2rem;
            }
            .explosion-tag {
                top: -8px;
                right: -10px;
                font-size: 0.7rem;
                padding: 0.3rem 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .nav-channel-tag {
                font-size: 0.78rem;
                padding: 0.35rem 0.7rem;
            }
            .container-custom {
                padding-left: 0.75rem;
                padding-right: 0.75rem;
            }
        }

        .scroll-track {
            scrollbar-width: thin;
            scrollbar-color: #d6d3d1 transparent;
        }

        .scroll-track::-webkit-scrollbar {
            height: 4px;
        }
        .scroll-track::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 4px;
        }

/* roulang page: category6 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }
        input {
            font-family: inherit;
        }
        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }
        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }
        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }
        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }
        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .card-hover-lift:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }
        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }
        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }
        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #f97316;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid #f97316;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .btn-outline-brand:hover {
            background: #f97316;
            color: #fff;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
        }
        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.75;
            }
        }
        .badge-accent {
            display: inline-block;
            background: #22c55e;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .badge-gold {
            display: inline-block;
            background: #f59e0b;
            color: #1c1917;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }
        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }
        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: #1c1917;
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.85rem;
            color: #a8a29e;
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: #f97316;
        }
        .faq-item[open] summary {
            color: #f97316;
        }
        .faq-item .faq-body {
            padding: 0 1.5rem 1.3rem 1.5rem;
            color: #57534e;
            line-height: 1.75;
            font-size: 0.95rem;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem 1.25rem;
            text-align: center;
            border: 1px solid #e7e5e4;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .stat-card .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #f97316;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: #78716c;
            margin-top: 0.4rem;
            font-weight: 500;
        }
        .pricing-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 2rem 1.5rem;
            border: 2px solid #e7e5e4;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-6px);
        }
        .pricing-card.featured {
            border-color: #f97316;
            box-shadow: 0 4px 24px rgba(249, 115, 22, 0.15);
            background: linear-gradient(180deg, #fff7ed 0%, #fff 18%);
        }
        .pricing-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: 16px;
            right: -30px;
            background: #f97316;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.25rem 2.2rem;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
        }
        .pricing-card .price-amount {
            font-size: 2.8rem;
            font-weight: 800;
            color: #1c1917;
            line-height: 1.2;
        }
        .pricing-card .price-unit {
            font-size: 0.9rem;
            color: #78716c;
            font-weight: 500;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: #f97316;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
            background: #fff7ed;
            padding: 0.25rem 0.8rem;
            border-radius: 999px;
        }
        .hero-skew-wrapper {
            position: relative;
        }
        @media (min-width: 1024px) {
            .hero-skew-image {
                clip-path: polygon(6% 0, 100% 0, 100% 100%, 0% 100%);
                transform: translateX(-2.5rem);
                border-radius: 0 var(--radius-3xl) var(--radius-3xl) 0;
            }
        }
        @media (max-width: 1023px) {
            .hero-skew-image {
                clip-path: none;
                transform: none;
                border-radius: var(--radius-2xl);
            }
        }
        .timeline-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #f97316;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 6px #fff7ed;
        }
        .timeline-line {
            position: absolute;
            left: 5px;
            top: 18px;
            bottom: -8px;
            width: 2px;
            background: #e7e5e4;
            z-index: 1;
        }
        .scroll-track {
            scrollbar-width: thin;
            scrollbar-color: #d6d3d1 transparent;
        }
        .scroll-track::-webkit-scrollbar {
            height: 4px;
        }
        .scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }
        .scroll-track::-webkit-scrollbar-thumb {
            background: #d6d3d1;
            border-radius: 999px;
        }
        @media (max-width: 768px) {
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .pricing-card .price-amount {
                font-size: 2.2rem;
            }
        }

/* roulang page: category5 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-200: #e7e5e4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --info-blue: #3b82f6;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --radius-full: 999px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }

        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #1c1917;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid transparent;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #f97316;
            color: #ea580c;
            background: #fff;
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #f97316;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid #f97316;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-brand:hover {
            background: #f97316;
            color: #fff;
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.25);
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.08);
            }
        }

        .badge-new {
            display: inline-block;
            background: #22c55e;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }

        .faq-item summary {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1.05rem;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: #fff7ed;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f5f5f4;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-smooth);
            font-size: 0.8rem;
            color: #78716c;
        }

        .faq-item[open] summary .faq-icon {
            background: #f97316;
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: #57534e;
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .tier-card {
            border: 2px solid #e7e5e4;
            border-radius: var(--radius-2xl);
            padding: 1.75rem;
            background: #fff;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .tier-card:hover {
            border-color: #fdba74;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .tier-card.tier-featured {
            border-color: #f97316;
            background: linear-gradient(180deg, #fff7ed 0%, #fff 30%);
            box-shadow: 0 4px 20px rgba(249, 115, 22, 0.12);
        }

        .tier-card.tier-featured::before {
            content: '最受欢迎';
            position: absolute;
            top: 14px;
            right: -32px;
            background: #f97316;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 2.2rem;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .progress-ring-wrap {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .progress-ring-wrap .progress-center {
            position: absolute;
            text-align: center;
            line-height: 1.2;
        }

        .progress-ring-wrap .progress-center .progress-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: #f97316;
            letter-spacing: -0.02em;
        }

        .progress-ring-wrap .progress-center .progress-label {
            font-size: 0.8rem;
            color: #78716c;
            font-weight: 500;
        }

        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, #e7e5e4, transparent);
            margin: 0;
            border: none;
        }

        .hero-backdrop {
            position: relative;
            overflow: hidden;
        }

        .hero-backdrop::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28, 25, 23, 0.82) 0%, rgba(28, 25, 23, 0.55) 50%, rgba(28, 25, 23, 0.78) 100%);
            z-index: 1;
        }

        .hero-backdrop>* {
            position: relative;
            z-index: 2;
        }

        @keyframes ring-progress {
            from {
                stroke-dashoffset: 439.82;
            }
            to {
                stroke-dashoffset: 140.74;
            }
        }

        .progress-ring-animated {
            animation: ring-progress 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
        }

        @media (max-width: 1024px) {
            .nav-channel-tag {
                font-size: 0.8rem;
                padding: 0.38rem 0.7rem;
            }
            .progress-ring-wrap .progress-center .progress-num {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-scroll-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                padding-bottom: 0.25rem;
            }
            .nav-scroll-container::-webkit-scrollbar {
                display: none;
            }
            .tier-card {
                padding: 1.25rem;
            }
            .btn-brand,
            .btn-outline-light,
            .btn-outline-brand {
                padding: 0.6rem 1.3rem;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .progress-ring-wrap .progress-center .progress-num {
                font-size: 1.6rem;
            }
            .progress-ring-wrap svg {
                width: 140px;
                height: 140px;
            }
            .hero-backdrop {
                padding: 2rem 0.75rem;
            }
            .faq-item summary {
                padding: 1rem 1.1rem;
                font-size: 0.95rem;
            }
            .faq-item .faq-answer {
                padding: 0 1.1rem 1rem;
                font-size: 0.88rem;
            }
        }

/* roulang page: category7 */
:root {
            --brand-500: #f97316;
            --brand-600: #ea580c;
            --brand-700: #c2410c;
            --accent-500: #22c55e;
            --surface-50: #fafaf9;
            --surface-100: #f5f5f4;
            --surface-800: #292524;
            --surface-900: #1c1917;
            --surface-950: #0c0a09;
            --fire: #ef4444;
            --gold: #f59e0b;
            --radius-xl: 0.875rem;
            --radius-2xl: 1.125rem;
            --radius-3xl: 1.5rem;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10), 0 3px 8px rgba(0, 0, 0, 0.06);
            --transition-fast: 180ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            color: #1c1917;
            background-color: #fafaf9;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(249, 115, 22, 0.5);
            outline-offset: 3px;
            border-radius: 6px;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        .nav-channel-tag {
            position: relative;
            white-space: nowrap;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.45rem 0.9rem;
            border-radius: 999px;
            transition: all var(--transition-smooth);
            letter-spacing: 0.01em;
        }

        .nav-channel-tag:hover {
            background-color: #fff7ed;
            color: #ea580c;
        }

        .nav-channel-tag.active-tag {
            background-color: #f97316;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(249, 115, 22, 0.35);
        }

        .card-hover-lift {
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
            color: #fff;
            font-weight: 600;
            padding: 0.75rem 1.75rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.45);
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
        }

        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #fff;
            color: #ea580c;
            font-weight: 600;
            padding: 0.7rem 1.6rem;
            border-radius: 999px;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: 2px solid #f97316;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }

        .btn-outline-brand:hover {
            background: #fff7ed;
            border-color: #ea580c;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.2);
        }

        .badge-hot {
            display: inline-block;
            background: #ef4444;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        .badge-new {
            display: inline-block;
            background: #22c55e;
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        .faq-item {
            border: 1px solid #e7e5e4;
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            background: #fff;
        }

        .faq-item:hover {
            border-color: #fdba74;
            box-shadow: 0 2px 12px rgba(249, 115, 22, 0.06);
        }

        .faq-item summary {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
            color: #1c1917;
            transition: color var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: #ea580c;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            color: #a8a29e;
            font-size: 0.85rem;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            color: #f97316;
        }

        .faq-item .faq-body {
            padding: 0 1.5rem 1.2rem 1.5rem;
            color: #57534e;
            font-size: 0.95rem;
            line-height: 1.75;
        }

        .coupon-card-main {
            background: linear-gradient(135deg, #fff7ed 0%, #fff 40%, #fff7ed 100%);
            border: 2px dashed #f97316;
            border-radius: var(--radius-3xl);
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(249, 115, 22, 0.18);
            transition: all var(--transition-smooth);
        }

        .coupon-card-main::before {
            content: '';
            position: absolute;
            width: 40px;
            height: 40px;
            background: #fafaf9;
            border-radius: 50%;
            top: 50%;
            left: -20px;
            transform: translateY(-50%);
            border: 2px dashed #f97316;
            z-index: 2;
        }

        .coupon-card-main::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 40px;
            background: #fafaf9;
            border-radius: 50%;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            border: 2px dashed #f97316;
            z-index: 2;
        }

        .coupon-card-mini {
            background: #fff;
            border: 1.5px dashed #fdba74;
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .coupon-card-mini:hover {
            border-color: #f97316;
            box-shadow: 0 4px 18px rgba(249, 115, 22, 0.15);
            transform: translateY(-3px);
        }

        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, #e7e5e4, transparent);
            margin: 0;
        }

        @media (max-width: 768px) {
            .coupon-card-main::before,
            .coupon-card-main::after {
                width: 24px;
                height: 24px;
                left: -12px;
            }
            .coupon-card-main::after {
                left: auto;
                right: -12px;
            }
            .nav-channel-tag {
                font-size: 0.8rem;
                padding: 0.35rem 0.7rem;
            }
        }

        @media (max-width: 520px) {
            .nav-channel-tag {
                font-size: 0.72rem;
                padding: 0.3rem 0.55rem;
            }
            .btn-brand {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
            }
        }