/* roulang page: index */
:root {
            --bg-deep: #0e1116;
            --bg-card: #171b22;
            --bg-elev: #1f2530;
            --line: rgba(255, 255, 255, 0.08);
            --primary: #ff5a1f;
            --primary-2: #f43f5e;
            --grad-brand: linear-gradient(135deg, #ff5a1f 0%, #f43f5e 100%);
            --accent: #22d3a7;
            --grad-accent: linear-gradient(135deg, #22d3a7, #0ea5e9);
            --text-hi: #f5f7fa;
            --text-mid: #a8b3c0;
            --text-low: #68727f;
            --radius-lg: 20px;
            --radius-sm: 12px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.35);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            background: var(--bg-deep);
            color: var(--text-hi);
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--text-hi);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
        }
        .container {
            max-width: 1200px;
        }
        .text-primary {
            color: var(--primary) !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .text-mid {
            color: var(--text-mid) !important;
        }
        .text-low {
            color: var(--text-low) !important;
        }
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 700;
            padding: 12px 28px;
            border: none;
            transition: all 0.25s;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary-brand {
            background-image: var(--grad-brand);
            color: #fff;
            box-shadow: 0 8px 20px rgba(255, 90, 31, 0.25);
        }
        .btn-primary-brand:hover {
            filter: brightness(1.08);
            color: #fff;
            box-shadow: 0 12px 28px rgba(255, 90, 31, 0.35);
        }
        .btn-outline-brand {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-hi);
        }
        .btn-outline-brand:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-reverse {
            background: #fff;
            color: #171b22;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .btn-reverse:hover {
            background: transparent;
            border: 1px solid var(--grad-brand);
            color: #fff;
            box-shadow: none;
        }
        .section {
            padding: 96px 0;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--text-mid);
            font-size: 15px;
            margin-top: 8px;
        }
        .circle-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-card);
            border: 1px solid var(--line);
        }
        /* Site Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 24px;
            max-width: 1200px;
            margin: 0 auto;
            transition: all 0.3s;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 900;
            color: var(--text-hi);
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--text-hi);
        }
        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--grad-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            padding: 6px 4px;
            border-bottom: 2px solid transparent;
            transition: all 0.2s;
        }
        .brand-link:hover {
            color: var(--primary);
            border-color: var(--primary);
        }
        .brand-link.active {
            color: var(--text-hi);
            border-color: var(--primary);
        }
        .btn-sm-brand {
            padding: 8px 22px;
            font-size: 14px;
            border-radius: 999px;
            background-image: var(--grad-brand);
            color: #fff;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.3);
            transition: all 0.25s;
        }
        .btn-sm-brand:hover {
            filter: brightness(1.1);
            box-shadow: 0 8px 24px rgba(255, 90, 31, 0.4);
            color: #fff;
        }
        .channel-nav {
            background: var(--bg-elev);
            border-top: 1px solid var(--line);
        }
        .channel-nav-inner {
            display: flex;
            gap: 8px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 8px 24px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }
        .channel-tag {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            padding: 7px 20px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid var(--line);
            color: var(--text-mid);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
            transition: all 0.25s;
        }
        .channel-tag:hover {
            background: rgba(255, 90, 31, 0.08);
            border-color: var(--primary);
            color: var(--text-hi);
        }
        .channel-tag.active {
            background: var(--grad-brand);
            border-color: transparent;
            color: #fff;
        }
        .navbar-toggler {
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            background: transparent;
            padding: 6px 10px;
        }
        .navbar-toggler i {
            color: var(--text-hi);
        }
        /* Hero */
        .hero-section {
            position: relative;
            padding: 120px 0 140px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 40%, rgba(255, 90, 31, 0.2) 0%, transparent 65%),
                linear-gradient(180deg, rgba(14, 17, 22, 0.82) 0%, rgba(14, 17, 22, 0.65) 45%, var(--bg-deep) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
        }
        .hero-title {
            font-size: clamp(36px, 5vw, 60px);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title .grad-text {
            background: var(--grad-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-mid);
            margin-bottom: 32px;
            max-width: 480px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-badges {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .data-badge {
            min-width: 100px;
            text-align: center;
            padding: 16px 20px;
            border-radius: var(--radius-lg);
            background: rgba(23, 27, 34, 0.75);
            border: 1px solid var(--line);
            position: relative;
            backdrop-filter: blur(4px);
        }
        .data-badge::before {
            content: '';
            position: absolute;
            inset: -1px;
            border-radius: var(--radius-lg);
            padding: 1px;
            background: var(--grad-accent);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        .data-badge .num {
            font-size: 32px;
            font-weight: 900;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }
        .data-badge .label {
            font-size: 13px;
            color: var(--text-mid);
            margin-top: 6px;
        }
        /* Timeline */
        .timeline-section {
            background: var(--bg-deep);
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
        }
        .section-link:hover {
            color: var(--primary);
        }
        .timeline-wrap {
            position: relative;
            padding-left: 32px;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: var(--line);
        }
        .timeline-item {
            position: relative;
            padding: 0 0 20px 24px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(34, 211, 167, 0.15), 0 0 12px rgba(34, 211, 167, 0.3);
        }
        .timeline-card {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            transition: transform 0.25s, box-shadow 0.25s;
        }
        .timeline-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .timeline-time {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-hi);
            font-variant-numeric: tabular-nums;
            min-width: 72px;
        }
        .timeline-info {
            flex: 1;
            min-width: 200px;
        }
        .timeline-topic {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .timeline-place {
            font-size: 13px;
            color: var(--text-low);
        }
        .status-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: var(--bg-elev);
            border: 1px solid var(--line);
            color: var(--text-mid);
            white-space: nowrap;
        }
        .status-tag.live {
            background: rgba(34, 211, 167, 0.12);
            border-color: rgba(34, 211, 167, 0.35);
            color: var(--accent);
        }
        .status-tag.done {
            opacity: 0.6;
        }
        /* Speakers */
        .speakers-section {
            background: var(--bg-card);
        }
        .speaker-card {
            background: var(--bg-deep);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
            overflow: hidden;
        }
        .speaker-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--grad-brand);
            transform: scaleY(0);
            transform-origin: bottom;
            transition: transform 0.3s;
        }
        .speaker-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .speaker-card:hover::before {
            transform: scaleY(1);
        }
        .speaker-avatar {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--line);
            margin: 0 auto 16px;
            display: block;
        }
        .speaker-name {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .speaker-role {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 12px;
        }
        .speaker-bio {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.6;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        /* Tickets */
        .tickets-section {
            background: var(--bg-deep);
        }
        .ticket-card {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .ticket-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .ticket-card.featured {
            border: 2px solid transparent;
            background:
                linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
                var(--grad-brand) border-box;
        }
        .ticket-featured-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--grad-brand);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 18px;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.35);
        }
        .ticket-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .ticket-price {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-hi);
            font-variant-numeric: tabular-nums;
            margin-bottom: 20px;
        }
        .ticket-price span {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-mid);
        }
        .ticket-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            flex: 1;
        }
        .ticket-list li {
            display: flex;
            align-items: baseline;
            gap: 8px;
            font-size: 14px;
            color: var(--text-mid);
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .ticket-list li i {
            color: var(--accent);
            font-size: 12px;
            flex-shrink: 0;
        }
        .ticket-btn {
            width: 100%;
        }
        /* Register CTA */
        .register-section {
            position: relative;
            background: var(--bg-deep);
            overflow: hidden;
        }
        .register-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 90, 31, 0.18) 0%, transparent 70%);
            z-index: 0;
        }
        .register-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(34, 211, 167, 0.12) 0%, transparent 70%);
            z-index: 0;
        }
        .register-inner {
            position: relative;
            z-index: 2;
        }
        .register-form {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-card);
            max-width: 600px;
            margin: 0 auto;
        }
        .form-control {
            background: #1b2028;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            color: var(--text-hi);
            font-size: 15px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .form-control:focus {
            background: #1b2028;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.15);
            color: var(--text-hi);
        }
        .form-control::placeholder {
            color: var(--text-low);
        }
        .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            margin-bottom: 6px;
        }
        .form-label .required {
            color: var(--primary);
            margin-left: 2px;
        }
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23a8b3c0'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            background-size: 14px;
            padding-right: 40px;
        }
        select.form-control option {
            background: #1b2028;
            color: var(--text-hi);
        }
        /* News */
        .news-section {
            background: var(--bg-card);
        }
        .news-filter {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            background: var(--bg-elev);
            border: 1px solid var(--line);
            color: var(--text-mid);
            transition: all 0.25s;
            cursor: pointer;
        }
        .filter-tag:hover {
            background: rgba(255, 90, 31, 0.08);
            color: var(--text-hi);
        }
        .filter-tag.active {
            background: var(--grad-brand);
            border-color: transparent;
            color: #fff;
        }
        .news-card {
            display: block;
            background: var(--bg-deep);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: var(--text-hi);
        }
        .news-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-elev);
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-body {
            padding: 20px;
        }
        .news-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(34, 211, 167, 0.1);
            border: 1px solid rgba(34, 211, 167, 0.25);
            color: var(--accent);
            margin-bottom: 10px;
        }
        .news-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text-hi);
            transition: color 0.2s;
        }
        .news-card:hover .news-title {
            color: var(--primary);
        }
        .news-excerpt {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--line);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-low);
        }
        .news-meta .read-more {
            color: var(--text-mid);
            font-weight: 600;
            transition: color 0.2s;
        }
        .news-card:hover .read-more {
            color: var(--primary);
        }
        .empty-empty {
            text-align: center;
            padding: 64px 24px;
            background: var(--bg-deep);
            border: 1px dashed var(--line);
            border-radius: var(--radius-lg);
        }
        .empty-icon {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            margin: 0 auto 16px;
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--text-low);
        }
        .empty-empty p {
            color: var(--text-mid);
            font-size: 15px;
        }
        /* FAQ */
        .faq-section {
            background: var(--bg-deep);
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--line) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 16px;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-weight: 700;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .accordion-button::after {
            display: none;
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--text-hi);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
        }
        .accordion-icon {
            margin-left: auto;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-elev);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all 0.3s;
            border: 1px solid var(--line);
        }
        .accordion-icon i {
            font-size: 12px;
            color: var(--text-mid);
        }
        .accordion-button:not(.collapsed) .accordion-icon {
            background: var(--accent);
            border-color: transparent;
        }
        .accordion-button:not(.collapsed) .accordion-icon i {
            color: #0e1116;
        }
        .accordion-body {
            padding: 0 24px 22px;
            color: var(--text-mid);
            line-height: 1.7;
            border-left: 2px solid var(--accent);
            margin-left: 24px;
            padding-left: 16px;
            font-size: 14px;
        }
        /* Footer */
        .site-footer {
            background: #0a0c10;
            border-top: 1px solid var(--line);
            padding: 64px 0 0;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 900;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 300px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-mid);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 2;
        }
        .footer-contact i {
            color: var(--primary);
            width: 20px;
            margin-right: 6px;
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding: 20px 0;
            margin-top: 48px;
            font-size: 13px;
            color: var(--text-low);
        }
        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }
        .qr-placeholder {
            width: 90px;
            height: 90px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--line);
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-low);
            margin-top: 8px;
            flex-direction: column;
            gap: 4px;
        }
        .qr-placeholder i {
            font-size: 22px;
            opacity: 0.6;
        }
        /* Responsive */
        @media (max-width: 991px) {
            .section {
                padding: 64px 0;
            }
            .speaker-card {
                margin-bottom: 20px;
            }
            .ticket-card {
                margin-bottom: 24px;
            }
            .hero-badges {
                gap: 12px;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }
            .hero-section {
                padding: 80px 0 100px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-badges {
                gap: 8px;
            }
            .data-badge {
                min-width: 80px;
                padding: 12px 14px;
            }
            .data-badge .num {
                font-size: 24px;
            }
            .timeline-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .timeline-time {
                font-size: 18px;
            }
            .register-form {
                padding: 24px 20px;
            }
            .brand-row {
                padding: 12px 16px;
                flex-wrap: wrap;
            }
            .channel-nav-inner {
                padding: 8px 16px;
            }
            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
            .news-card {
                margin-bottom: 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .brand-actions .brand-link {
                display: none;
            }
            .data-badge .num {
                font-size: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0e1116;
            --bg-card: #171b22;
            --bg-elev: #1f2530;
            --line: rgba(255, 255, 255, 0.08);
            --primary: #ff5a1f;
            --primary-2: #f43f5e;
            --accent: #22d3a7;
            --text-hi: #f5f7fa;
            --text-mid: #a8b3c0;
            --text-low: #68727f;
            --grad-brand: linear-gradient(135deg, #ff5a1f 0%, #f43f5e 100%);
            --grad-accent: linear-gradient(135deg, #22d3a7, #0ea5e9);
            --font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, -apple-system, sans-serif;
            --radius-lg: 20px;
            --radius-sm: 12px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-btn: 0 8px 20px rgba(255, 90, 31, 0.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg-deep);
            color: var(--text-hi);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--text-hi);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
        }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 17, 22, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: 1200px;
            margin: 0 auto;
            gap: 20px;
            transition: opacity 0.3s ease;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 900;
            letter-spacing: 0.02em;
            color: var(--text-hi) !important;
            white-space: nowrap;
        }

        .brand-logo:hover {
            color: var(--text-hi) !important;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--grad-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.35);
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .brand-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            padding: 6px 12px;
            border-radius: 999px;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .brand-link:hover {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.35);
            background: rgba(255, 90, 31, 0.08);
        }

        .brand-link.active {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.5);
            background: rgba(255, 90, 31, 0.1);
        }

        .btn-sm-brand {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--grad-brand);
            color: #fff !important;
            font-size: 14px;
            font-weight: 800;
            padding: 9px 22px;
            border-radius: 999px;
            border: none;
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
        }

        .btn-sm-brand:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(255, 90, 31, 0.35);
            color: #fff !important;
        }

        .channel-nav {
            border-top: 1px solid var(--line);
            background: var(--bg-elev);
        }

        .channel-nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 12px;
            padding: 10px 24px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            background: transparent;
            border: 1px solid var(--line);
            white-space: nowrap;
            transition: all 0.25s ease;
            flex-shrink: 0;
        }

        .channel-tag:hover {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.45);
            background: rgba(255, 90, 31, 0.08);
        }

        .channel-tag.active {
            background: var(--grad-brand);
            color: #fff !important;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.25);
        }

        @media (max-width: 768px) {
            .brand-row {
                padding: 12px 16px;
            }

            .brand-logo {
                font-size: 19px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .brand-actions {
                gap: 8px;
            }

            .brand-link {
                display: none;
            }

            .btn-sm-brand {
                padding: 8px 16px;
                font-size: 13px;
            }

            .channel-nav-inner {
                padding: 8px 16px;
                gap: 8px;
            }

            .channel-tag {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

        /* ===== 分类页头 ===== */
        .category-hero {
            background: var(--bg-card);
            border-bottom: 1px solid var(--line);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 90, 31, 0.14), transparent 70%);
            pointer-events: none;
        }

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 40px;
            position: relative;
        }

        .category-hero-text {
            position: relative;
            padding-left: 24px;
            max-width: 720px;
        }

        .category-hero-text::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 6px;
            border-radius: 999px;
            background: var(--grad-brand);
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 0 0 14px;
            color: var(--text-hi);
        }

        .category-hero-text p {
            font-size: 16px;
            color: var(--text-mid);
            line-height: 1.75;
            margin: 0;
        }

        .category-hero-badge {
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: flex-end;
            flex-shrink: 0;
            padding-top: 8px;
        }

        .badge-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(34, 211, 167, 0.08);
            border: 1px solid rgba(34, 211, 167, 0.3);
        }

        .badge-glow i {
            font-size: 12px;
        }

        .badge-count {
            font-size: 13px;
            color: var(--text-low);
            background: var(--bg-elev);
            border: 1px solid var(--line);
            padding: 6px 14px;
            border-radius: 999px;
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 40px 0 36px;
            }

            .category-hero-inner {
                flex-direction: column;
                gap: 20px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero-badge {
                flex-direction: row;
                align-items: center;
            }
        }

        /* ===== 资讯卡片网格 ===== */
        .section-pad {
            padding: 96px 0;
        }

        @media (max-width: 768px) {
            .section-pad {
                padding: 48px 0;
            }
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            line-height: 1.25;
            margin: 0;
            letter-spacing: -0.01em;
        }

        .filter-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-mid);
            background: var(--bg-elev);
            border: 1px solid var(--line);
            cursor: default;
            transition: all 0.25s ease;
        }

        .filter-tag.active {
            background: var(--grad-brand);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.22);
        }

        .news-card {
            display: block;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 255, 255, 0.1);
            color: var(--text-hi);
        }

        .news-card-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-elev);
        }

        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-card-thumb img {
            transform: scale(1.04);
        }

        .news-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            color: #fff;
            background: rgba(14, 17, 22, 0.78);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .news-card-body {
            padding: 22px 24px 20px;
        }

        .news-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin: 0 0 10px;
            color: var(--text-hi);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 52px;
        }

        .news-card-body p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 72px;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--line);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-low);
        }

        .news-card-meta span:first-child {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .read-more {
            color: var(--text-mid);
            font-weight: 600;
            transition: color 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-card:hover .read-more {
            color: var(--primary);
        }

        /* ===== 编号板块 ===== */
        .numbered-section {
            padding: 80px 0;
            border-top: 1px solid var(--line);
        }

        .numbered-section:nth-child(odd) {
            background: rgba(23, 27, 34, 0.32);
        }

        .numbered-head {
            display: flex;
            align-items: baseline;
            gap: 16px;
            margin-bottom: 40px;
        }

        .section-num {
            font-size: 18px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.04em;
            font-variant-numeric: tabular-nums;
            background: rgba(34, 211, 167, 0.08);
            border: 1px solid rgba(34, 211, 167, 0.22);
            border-radius: 999px;
            padding: 4px 14px;
            flex-shrink: 0;
        }

        .numbered-head h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin: 0;
            line-height: 1.3;
        }

        @media (max-width: 768px) {
            .numbered-section {
                padding: 48px 0;
            }

            .numbered-head {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
                margin-bottom: 28px;
            }
        }

        /* 时间线 */
        .timeline-wrap {
            position: relative;
            padding-left: 28px;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, rgba(34, 211, 167, 0.5), rgba(14, 165, 233, 0.2));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 28px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -25px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(34, 211, 167, 0.18), 0 0 16px rgba(34, 211, 167, 0.45);
            z-index: 1;
        }

        .timeline-card {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .timeline-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .timeline-date {
            display: inline-block;
            font-size: 13px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: 0.03em;
            background: rgba(34, 211, 167, 0.08);
            border-radius: 6px;
            padding: 2px 10px;
            margin-bottom: 10px;
            font-variant-numeric: tabular-nums;
        }

        .timeline-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-hi);
        }

        .timeline-card p {
            font-size: 14px;
            color: var(--text-mid);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .timeline-wrap {
                padding-left: 20px;
            }

            .timeline-item {
                padding-left: 22px;
                padding-bottom: 20px;
            }

            .timeline-dot {
                left: -21px;
                width: 12px;
                height: 12px;
            }

            .timeline-card {
                padding: 16px 18px;
            }
        }

        /* 规则卡 */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .rule-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 28px 26px;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .rule-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--grad-brand);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .rule-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

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

        .rule-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: rgba(255, 90, 31, 0.1);
            color: var(--primary);
        }

        .rule-card:nth-child(2) .rule-icon {
            background: rgba(34, 211, 167, 0.1);
            color: var(--accent);
        }

        .rule-card:nth-child(3) .rule-icon {
            background: rgba(14, 165, 233, 0.1);
            color: #0ea5e9;
        }

        .rule-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-hi);
        }

        .rule-card p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 992px) {
            .rules-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .rules-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 服务区块 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .service-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .service-img {
            width: 120px;
            height: 110px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .service-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-hi);
        }

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

        @media (max-width: 768px) {
            .service-grid {
                grid-template-columns: 1fr;
            }

            .service-card {
                flex-direction: column;
            }

            .service-img {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 8;
            }
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            border-top: 1px solid var(--line);
        }

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

        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius-sm) !important;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(34, 211, 167, 0.4);
        }

        .accordion-button {
            background: transparent;
            color: var(--text-hi);
            font-weight: 700;
            font-size: 16px;
            padding: 20px 24px;
            box-shadow: none;
            border: none;
            position: relative;
            transition: background 0.3s ease;
        }

        .accordion-button:hover {
            background: rgba(255, 255, 255, 0.02);
            color: var(--text-hi);
        }

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

        .accordion-button::after {
            background: none;
            content: '+';
            font-family: var(--font-family);
            font-size: 22px;
            font-weight: 400;
            color: var(--text-mid);
            width: auto;
            height: auto;
            transition: transform 0.3s ease, color 0.3s ease;
            line-height: 1;
        }

        .accordion-button:not(.collapsed)::after {
            content: '-';
            transform: none;
            color: var(--primary);
        }

        .accordion-button:not(.collapsed) {
            background: rgba(34, 211, 167, 0.04);
            color: var(--text-hi);
            box-shadow: none;
        }

        .accordion-body {
            padding: 0 24px 22px;
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.7;
            border-top: 1px solid var(--line);
        }

        @media (max-width: 768px) {
            .faq-section {
                padding: 48px 0;
            }

            .accordion-button {
                font-size: 15px;
                padding: 16px 18px;
            }

            .accordion-body {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        /* CTA条 */
        .cta-strip {
            padding: 56px 0;
            background: var(--bg-deep);
            border-top: 1px solid var(--line);
            position: relative;
            overflow: hidden;
        }

        .cta-strip::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 240px;
            background: radial-gradient(ellipse, rgba(255, 90, 31, 0.12), transparent 70%);
            pointer-events: none;
        }

        .cta-strip-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            max-width: 900px;
            margin: 0 auto;
            padding: 32px 40px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .cta-strip-inner p {
            font-size: clamp(18px, 2vw, 22px);
            font-weight: 800;
            margin: 0;
            color: var(--text-hi);
            line-height: 1.4;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--grad-brand);
            color: #fff !important;
            font-size: 16px;
            font-weight: 800;
            padding: 13px 32px;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-btn);
            border: none;
            white-space: nowrap;
            transition: all 0.3s ease;
        }

        .btn-cta:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 90, 31, 0.35);
            color: #fff !important;
        }

        .btn-cta:active {
            transform: translateY(0);
        }

        @media (max-width: 768px) {
            .cta-strip {
                padding: 40px 0;
            }

            .cta-strip-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
                gap: 16px;
            }

            .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a0c10;
            border-top: 1px solid var(--line);
            padding: 72px 0 0;
            margin-top: 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 900;
            color: var(--text-hi);
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.75;
            margin: 0;
            max-width: 340px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 800;
            color: var(--text-hi);
            margin: 4px 0 18px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-mid);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 14px;
            color: var(--text-mid);
        }

        .footer-contact div {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--text-low);
            width: 18px;
            text-align: center;
        }

        .qr-placeholder {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            background: var(--bg-card);
            border: 1px solid var(--line);
            color: var(--text-mid);
            font-size: 13px;
        }

        .qr-placeholder i {
            font-size: 22px;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 56px;
            padding: 20px 0;
        }

        .footer-bottom-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-low);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 48px 0 0;
            }

            .footer-bottom-inner {
                padding: 0 16px;
                flex-direction: column;
                text-align: center;
            }

            .footer-bottom {
                margin-top: 36px;
            }
        }

        /* ===== 主内容区通用间距 ===== */
        .main-wrap {
            padding-bottom: 0;
        }

/* roulang page: article */
:root {
            --bg-deep: #0e1116;
            --bg-card: #171b22;
            --bg-elev: #1f2530;
            --line: rgba(255, 255, 255, 0.08);
            --primary: #ff5a1f;
            --primary-2: #f43f5e;
            --grad-brand: linear-gradient(135deg, #ff5a1f 0%, #f43f5e 100%);
            --accent: #22d3a7;
            --grad-accent: linear-gradient(135deg, #22d3a7, #0ea5e9);
            --text-hi: #f5f7fa;
            --text-mid: #a8b3c0;
            --text-low: #68727f;
            --radius-lg: 20px;
            --radius-md: 12px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.35);
            --font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-deep);
            color: var(--text-hi);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--bg-deep);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 14px 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 24px;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--text-hi);
        }

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

        .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--grad-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.3);
            transition: transform 0.3s;
        }

        .brand-logo:hover .logo-mark {
            transform: rotate(-6deg) scale(1.05);
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-link {
            font-size: 14px;
            color: var(--text-mid);
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid var(--line);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .brand-link:hover {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.4);
            background: rgba(255, 90, 31, 0.08);
        }

        .btn-sm-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            background: var(--grad-brand);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .btn-sm-brand:hover {
            filter: brightness(1.08);
            box-shadow: 0 8px 20px rgba(255, 90, 31, 0.25);
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-sm-brand:active {
            transform: translateY(1px);
        }

        .channel-nav {
            background: var(--bg-elev);
            border-top: 1px solid var(--line);
        }

        .channel-nav-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 8px;
            padding: 8px 24px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }

        .channel-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            background: transparent;
            border: 1px solid var(--line);
            white-space: nowrap;
            transition: all 0.2s ease;
        }

        .channel-tag:hover {
            background: rgba(255, 90, 31, 0.08);
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.3);
        }

        .channel-tag.active {
            background: var(--grad-brand);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.25);
        }

        @media (max-width: 992px) {
            .brand-row {
                padding: 12px 16px;
            }
            .channel-nav-inner {
                padding: 8px 16px;
            }
        }

        @media (max-width: 768px) {
            .brand-actions .brand-link {
                display: none;
            }
            .brand-logo {
                font-size: 20px;
            }
            .logo-mark {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .btn-sm-brand {
                padding: 8px 16px;
                font-size: 13px;
            }
        }

        /* ===== Main ===== */
        .site-main {
            background: var(--bg-deep);
        }

        .article-wrap {
            max-width: 1000px;
            margin: 0 auto;
            padding: 24px 0 72px;
        }

        /* Breadcrumb */
        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            padding: 24px 0 8px;
            font-size: 13px;
            color: var(--text-low);
        }

        .breadcrumb-nav a {
            color: var(--text-mid);
            transition: color 0.2s;
        }

        .breadcrumb-nav a:hover {
            color: var(--primary);
        }

        .breadcrumb-nav .sep {
            color: var(--text-low);
            opacity: 0.5;
        }

        .breadcrumb-nav .current {
            color: var(--text-low);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 260px;
        }

        /* Article header */
        .article-header {
            padding: 28px 0 24px;
            border-bottom: 1px solid var(--line);
        }

        .article-header h1 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
            color: var(--text-hi);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            color: var(--text-mid);
            font-size: 14px;
        }

        .article-meta .category-badge {
            background: rgba(34, 211, 167, 0.15);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--text-low);
            font-size: 14px;
        }

        /* Article content */
        .article-content {
            max-width: 760px;
            margin: 0 auto;
            padding: 36px 0 8px;
        }

        .article-content p {
            line-height: 1.8;
            color: rgba(245, 247, 250, 0.9);
            margin-bottom: 22px;
            font-size: 16px;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 800;
            margin: 40px 0 16px;
            line-height: 1.35;
            color: var(--text-hi);
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 800;
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
            color: var(--text-hi);
        }

        .article-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 28px 0 12px;
            line-height: 1.4;
            color: var(--text-hi);
        }

        .article-content blockquote {
            background: var(--bg-card);
            border-left: 4px solid var(--accent);
            border-radius: 12px;
            padding: 20px 24px;
            color: var(--text-mid);
            margin: 28px 0;
            font-size: 15px;
            line-height: 1.75;
        }

        .article-content blockquote p {
            margin-bottom: 0;
            color: var(--text-mid);
        }

        .article-content img {
            width: 100%;
            border-radius: 12px;
            margin: 28px 0;
            border: 1px solid var(--line);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-card);
            margin: 28px 0;
            font-size: 14px;
        }

        .article-content table th {
            background: var(--bg-elev);
            padding: 12px 16px;
            text-align: left;
            font-weight: 700;
            color: var(--text-hi);
        }

        .article-content table td {
            padding: 12px 16px;
            border-top: 1px solid var(--line);
            color: var(--text-mid);
        }

        .article-content table tr:nth-child(even) td {
            background: rgba(255, 255, 255, 0.02);
        }

        .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-thickness: 1px;
        }

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

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 22px;
            color: rgba(245, 247, 250, 0.9);
            line-height: 1.8;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        /* Article footer (tags + share) */
        .article-footer {
            max-width: 760px;
            margin: 0 auto;
            padding: 28px 0 8px;
            border-top: 1px solid var(--line);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--bg-elev);
            border: 1px solid var(--line);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-mid);
            transition: all 0.2s ease;
            cursor: default;
        }

        .tag:hover {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.3);
        }

        .article-share {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 14px;
            color: var(--text-mid);
        }

        .article-share .share-label {
            margin-right: 4px;
        }

        .share-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border: 1px solid var(--line);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-mid);
            background: var(--bg-card);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .share-link:hover {
            color: var(--primary);
            border-color: rgba(255, 90, 31, 0.3);
            background: rgba(255, 90, 31, 0.08);
        }

        .share-link i {
            font-size: 14px;
        }

        /* Not found */
        .not-found-box {
            text-align: center;
            padding: 72px 32px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            margin: 32px 0 48px;
            box-shadow: var(--shadow-card);
        }

        .not-found-box .nf-icon {
            font-size: 52px;
            color: var(--text-low);
            margin-bottom: 16px;
        }

        .not-found-box p {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 8px;
        }

        .not-found-box .nf-sub {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 24px;
        }

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--grad-brand);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 8px 20px rgba(255, 90, 31, 0.25);
        }

        .btn-brand:hover {
            filter: brightness(1.08);
            box-shadow: 0 12px 28px rgba(255, 90, 31, 0.35);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-brand:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 26px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-hi);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 90, 31, 0.05);
        }

        /* Related posts */
        .related-posts {
            max-width: 1000px;
            margin: 0 auto;
            padding: 48px 0 24px;
            border-top: 1px solid var(--line);
        }

        .related-posts .section-title {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-hi);
        }

        .related-posts .section-title .title-bar {
            width: 4px;
            height: 24px;
            border-radius: 4px;
            background: var(--grad-brand);
            display: inline-block;
        }

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .news-card .card-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: var(--bg-elev);
        }

        .news-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .card-cover img {
            transform: scale(1.04);
        }

        .news-card .card-body {
            padding: 20px 22px 0;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .cat-label {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(34, 211, 167, 0.12);
            border-radius: 999px;
            margin-bottom: 10px;
        }

        .news-card .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .card-title a {
            color: var(--text-hi);
            transition: color 0.2s;
        }

        .news-card .card-title a:hover {
            color: var(--primary);
        }

        .news-card .card-summary {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex: 1;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-low);
            border-top: 1px solid var(--line);
            padding: 14px 0;
            margin-top: auto;
        }

        .news-card .read-more {
            color: var(--text-mid);
            font-weight: 600;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }

        .news-card .read-more:hover {
            color: var(--primary);
            gap: 8px;
        }

        /* Back link */
        .back-link-wrap {
            max-width: 760px;
            margin: 0 auto;
            padding: 24px 0 16px;
            text-align: center;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-mid);
            transition: all 0.2s ease;
        }

        .back-link:hover {
            color: var(--primary);
            gap: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0a0c10;
            border-top: 1px solid var(--line);
            padding: 64px 0 28px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 21px;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-hi);
        }

        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 15px;
            border-radius: 8px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.75;
            margin-top: 8px;
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 3px;
            border-radius: 3px;
            background: var(--grad-brand);
        }

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

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

        .footer-links a {
            font-size: 14px;
            color: var(--text-mid);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s;
        }

        .footer-links a::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--text-low);
            opacity: 0.6;
            transition: all 0.2s;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-links a:hover::before {
            background: var(--primary);
            opacity: 1;
            width: 8px;
            border-radius: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-contact div {
            font-size: 14px;
            color: var(--text-mid);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--text-low);
            width: 16px;
            text-align: center;
        }

        .qr-placeholder {
            margin-top: 16px;
            width: 96px;
            height: 96px;
            border: 1px solid var(--line);
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            color: var(--text-low);
            font-size: 12px;
            background: var(--bg-card);
            transition: all 0.3s;
        }

        .qr-placeholder i {
            font-size: 28px;
            color: var(--accent);
        }

        .qr-placeholder:hover {
            border-color: rgba(34, 211, 167, 0.3);
        }

        .footer-bottom {
            border-top: 1px solid var(--line);
            margin-top: 48px;
            padding-top: 24px;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-low);
            flex-wrap: wrap;
            gap: 8px;
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 48px 0 20px;
            }
            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 992px) {
            .article-wrap {
                padding: 16px 0 48px;
            }
            .related-posts .col-md-6 {
                margin-bottom: 20px;
            }
        }

/* roulang page: category2 */
:root {
        --bg-deep: #0e1116;
        --bg-card: #171b22;
        --bg-elev: #1f2530;
        --line: rgba(255, 255, 255, 0.08);
        --primary: #ff5a1f;
        --primary-2: #f43f5e;
        --grad-brand: linear-gradient(135deg, #ff5a1f 0%, #f43f5e 100%);
        --accent: #22d3a7;
        --grad-accent: linear-gradient(135deg, #22d3a7, #0ea5e9);
        --text-hi: #f5f7fa;
        --text-mid: #a8b3c0;
        --text-low: #68727f;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        background: var(--bg-deep);
        color: var(--text-hi);
        font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", system-ui, -apple-system, sans-serif;
        line-height: 1.75;
        margin: 0;
        padding: 0;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
    }

    a {
        color: var(--text-hi);
        text-decoration: none;
        transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
    }

    a:hover {
        color: var(--primary);
    }

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

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

    /* ===== 按钮 ===== */
    .btn {
        border-radius: 12px;
        font-weight: 700;
        padding: 12px 28px;
        transition: all 0.3s ease;
        border: none;
        font-size: 15px;
    }

    .btn-brand {
        background: var(--grad-brand);
        color: #fff;
        box-shadow: 0 8px 20px rgba(255, 90, 31, 0.25);
    }

    .btn-brand:hover {
        filter: brightness(1.08);
        box-shadow: 0 12px 28px rgba(255, 90, 31, 0.35);
        color: #fff;
        transform: translateY(-1px);
    }

    .btn-outline-light-custom {
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: var(--text-hi);
    }

    .btn-outline-light-custom:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: rgba(255, 90, 31, 0.06);
    }

    .btn:active {
        transform: translateY(1px);
    }

    .btn-sm-brand {
        background: var(--grad-brand);
        color: #fff;
        border: none;
        border-radius: 12px;
        padding: 9px 20px;
        font-weight: 700;
        font-size: 14px;
        transition: all 0.3s ease;
        box-shadow: 0 4px 14px rgba(255, 90, 31, 0.22);
        white-space: nowrap;
    }

    .btn-sm-brand:hover {
        filter: brightness(1.1);
        box-shadow: 0 6px 20px rgba(255, 90, 31, 0.35);
        color: #fff;
        transform: translateY(-1px);
    }

    /* ===== Header ===== */
    .site-header {
        background: var(--bg-deep);
        border-bottom: 1px solid var(--line);
        position: relative;
        z-index: 1000;
    }

    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        max-width: 1200px;
        margin: 0 auto;
        padding: 16px 24px;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: var(--text-hi);
    }

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

    .logo-mark {
        width: 38px;
        height: 38px;
        background: var(--grad-brand);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: #fff;
        box-shadow: 0 4px 14px rgba(255, 90, 31, 0.3);
    }

    .brand-actions {
        display: flex;
        align-items: center;
        gap: 20px;
    }

    .brand-link {
        color: var(--text-mid);
        font-size: 14px;
        font-weight: 600;
        transition: color 0.3s;
    }

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

    .channel-nav {
        background: var(--bg-elev);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        position: sticky;
        top: 0;
        z-index: 999;
    }

    .channel-nav-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 10px 24px;
        display: flex;
        gap: 10px;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
        white-space: nowrap;
    }

    .channel-nav-inner::-webkit-scrollbar {
        display: none;
    }

    .channel-tag {
        display: inline-flex;
        align-items: center;
        padding: 8px 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-mid);
        background: transparent;
        border: 1px solid var(--line);
        transition: all 0.3s ease;
        text-decoration: none;
    }

    .channel-tag:hover {
        background: rgba(255, 90, 31, 0.08);
        border-color: rgba(255, 90, 31, 0.3);
        color: var(--text-hi);
    }

    .channel-tag.active {
        background: var(--grad-brand);
        color: #fff;
        border-color: transparent;
        box-shadow: 0 4px 14px rgba(255, 90, 31, 0.25);
    }

    /* ===== Footer ===== */
    .site-footer {
        background: #0a0c10;
        border-top: 1px solid var(--line);
        padding: 64px 0 0;
        margin-top: 0;
    }

    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 800;
        color: var(--text-hi);
        margin-bottom: 16px;
    }

    .footer-desc {
        color: var(--text-mid);
        font-size: 14px;
        line-height: 1.8;
        margin: 0;
        max-width: 320px;
    }

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

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

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

    .footer-links a {
        color: var(--text-mid);
        font-size: 14px;
        transition: color 0.3s;
    }

    .footer-links a:hover {
        color: var(--primary);
        text-decoration: none;
    }

    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 10px;
        color: var(--text-mid);
        font-size: 14px;
    }

    .footer-contact i {
        width: 20px;
        color: var(--accent);
        margin-right: 6px;
    }

    .qr-placeholder {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 12px;
        padding: 10px 16px;
        margin-top: 16px;
        color: var(--text-mid);
        font-size: 13px;
    }

    .qr-placeholder i {
        font-size: 20px;
        color: var(--accent);
    }

    .footer-bottom {
        border-top: 1px solid var(--line);
        margin-top: 48px;
        padding: 20px 0;
    }

    .footer-bottom-inner {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
        color: var(--text-mid);
        font-size: 13px;
    }

    /* ===== 分类页头 ===== */
    .category-hero {
        background: var(--bg-card);
        border-bottom: 1px solid var(--line);
        padding: 56px 0;
        position: relative;
        overflow: hidden;
    }

    .category-hero::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 8px;
        background: var(--grad-brand);
    }

    .category-hero .hero-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }

    .category-hero h1 {
        font-size: 28px;
        font-weight: 800;
        line-height: 1.3;
        margin: 0;
        color: var(--text-hi);
        letter-spacing: -0.01em;
    }

    .category-hero .hero-sub {
        color: var(--text-mid);
        font-size: 15px;
        max-width: 560px;
        line-height: 1.8;
        margin: 0;
    }

    /* ===== 编号板块 ===== */
    .category-section {
        padding: 80px 0;
    }

    .category-section:nth-child(even) {
        background: rgba(255, 255, 255, 0.015);
    }

    .section-label {
        display: flex;
        align-items: baseline;
        gap: 14px;
        margin-bottom: 12px;
    }

    .section-num {
        color: var(--accent);
        font-weight: 800;
        font-size: 18px;
        letter-spacing: 0.02em;
        font-variant-numeric: tabular-nums;
    }

    .section-title {
        font-size: clamp(24px, 3vw, 32px);
        font-weight: 800;
        line-height: 1.25;
        color: var(--text-hi);
        margin: 0;
        letter-spacing: -0.01em;
    }

    .section-desc {
        color: var(--text-mid);
        font-size: 15px;
        line-height: 1.8;
        margin: 12px 0 32px;
        max-width: 640px;
    }

    /* ===== 卡片通用 ===== */
    .custom-card {
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 20px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
        padding: 24px;
        height: 100%;
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .custom-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
        border-color: rgba(255, 255, 255, 0.1);
    }

    .card-icon-circle {
        width: 52px;
        height: 52px;
        border-radius: 16px;
        background: rgba(34, 211, 167, 0.12);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: var(--accent);
        margin-bottom: 18px;
    }

    .card-icon-circle.orange {
        background: rgba(255, 90, 31, 0.12);
        color: var(--primary);
    }

    .card-icon-circle.blue {
        background: rgba(14, 165, 233, 0.12);
        color: #0ea5e9;
    }

    .custom-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 12px;
    }

    .custom-card p {
        color: var(--text-mid);
        font-size: 14px;
        line-height: 1.75;
        margin: 0;
    }

    /* ===== 步骤时间线 ===== */
    .step-timeline {
        position: relative;
        padding-left: 32px;
    }

    .step-timeline::before {
        content: '';
        position: absolute;
        left: 10px;
        top: 8px;
        bottom: 8px;
        width: 2px;
        background: linear-gradient(to bottom, var(--accent), rgba(34, 211, 167, 0.15));
        border-radius: 2px;
    }

    .step-item {
        position: relative;
        margin-bottom: 32px;
    }

    .step-item:last-child {
        margin-bottom: 0;
    }

    .step-dot {
        position: absolute;
        left: -28px;
        top: 6px;
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background: var(--accent);
        box-shadow: 0 0 0 4px rgba(34, 211, 167, 0.2), 0 0 12px rgba(34, 211, 167, 0.5);
    }

    .step-content {
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 16px;
        padding: 20px 24px;
        transition: transform 0.3s, border-color 0.3s;
    }

    .step-content:hover {
        transform: translateX(4px);
        border-color: rgba(34, 211, 167, 0.3);
    }

    .step-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 8px;
    }

    .step-content p {
        color: var(--text-mid);
        font-size: 14px;
        margin: 0;
        line-height: 1.7;
    }

    /* ===== 信息网格 ===== */
    .info-tile {
        display: flex;
        gap: 16px;
        align-items: flex-start;
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 16px;
        padding: 20px;
        height: 100%;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .info-tile:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    }

    .info-tile-icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: var(--grad-accent);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 15px;
        flex-shrink: 0;
    }

    .info-tile-content h4 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-hi);
        margin: 0 0 4px;
    }

    .info-tile-content p {
        color: var(--text-mid);
        font-size: 13px;
        margin: 0;
        line-height: 1.6;
    }

    /* ===== 指示卡点 ===== */
    .tip-card {
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 20px;
        padding: 28px;
        height: 100%;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .tip-card::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 4px;
        background: var(--grad-brand);
        opacity: 0;
        transition: opacity 0.3s;
    }

    .tip-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    }

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

    .tip-card .tip-tag {
        display: inline-block;
        font-size: 12px;
        color: var(--accent);
        background: rgba(34, 211, 167, 0.1);
        padding: 4px 12px;
        border-radius: 999px;
        font-weight: 600;
        margin-bottom: 14px;
    }

    .tip-card h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 10px;
    }

    .tip-card p {
        color: var(--text-mid);
        font-size: 14px;
        line-height: 1.7;
        margin: 0;
    }

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

    .faq-card {
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 12px;
        margin-bottom: 16px;
        overflow: hidden;
        transition: border-color 0.3s, box-shadow 0.3s;
    }

    .faq-card:hover {
        border-color: rgba(255, 255, 255, 0.12);
    }

    .faq-card.expanded {
        border-color: rgba(34, 211, 167, 0.4);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 24px;
        cursor: pointer;
        font-size: 15px;
        font-weight: 700;
        color: var(--text-hi);
        transition: color 0.3s;
        user-select: none;
    }

    .faq-question .faq-icon {
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: rgba(34, 211, 167, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: var(--accent);
        transition: transform 0.3s, background 0.3s;
        flex-shrink: 0;
    }

    .faq-card.expanded .faq-icon {
        transform: rotate(45deg);
        background: rgba(34, 211, 167, 0.2);
    }

    .faq-answer {
        padding: 0 24px 20px;
        color: var(--text-mid);
        font-size: 14px;
        line-height: 1.75;
        display: none;
    }

    .faq-card.expanded .faq-answer {
        display: block;
    }

    /* ===== CTA 条 ===== */
    .cta-strip {
        background: linear-gradient(135deg, rgba(255, 90, 31, 0.12), rgba(244, 63, 94, 0.06)), var(--bg-deep);
        border-top: 1px solid var(--line);
        border-bottom: 1px solid var(--line);
        padding: 48px 0;
        text-align: center;
    }

    .cta-strip h2 {
        font-size: clamp(22px, 3vw, 28px);
        font-weight: 800;
        color: var(--text-hi);
        margin-bottom: 8px;
    }

    .cta-strip p {
        color: var(--text-mid);
        font-size: 15px;
        margin-bottom: 24px;
    }

    /* ===== 图片卡片 ===== */
    .guide-card {
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: 20px;
        overflow: hidden;
        height: 100%;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .guide-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    }

    .guide-card img {
        width: 100%;
        height: 180px;
        object-fit: cover;
        border-radius: 20px 20px 0 0;
    }

    .guide-card-body {
        padding: 20px;
    }

    .guide-card-tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(34, 211, 167, 0.1);
        padding: 3px 10px;
        border-radius: 999px;
        margin-bottom: 10px;
    }

    .guide-card h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .guide-card p {
        color: var(--text-mid);
        font-size: 13px;
        line-height: 1.7;
        margin: 0;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 992px) {
        .category-hero {
            padding: 44px 0;
        }

        .category-hero .hero-inner {
            flex-direction: column;
            gap: 16px;
            align-items: flex-start;
        }

        .category-section {
            padding: 56px 0;
        }

        .brand-actions .brand-link {
            display: none;
        }
    }

    @media (max-width: 768px) {
        .brand-row {
            padding: 12px 16px;
        }

        .channel-nav-inner {
            padding: 8px 16px;
            gap: 8px;
        }

        .channel-tag {
            padding: 6px 14px;
            font-size: 13px;
        }

        .category-hero {
            padding: 36px 0;
        }

        .category-hero h1 {
            font-size: 24px;
        }

        .category-section {
            padding: 44px 0;
        }

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

        .step-timeline {
            padding-left: 26px;
        }

        .step-dot {
            left: -24px;
        }

        .cta-strip {
            padding: 40px 0;
        }
    }

    @media (max-width: 520px) {
        .brand-logo {
            font-size: 17px;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 10px;
        }

        .btn-sm-brand {
            padding: 8px 14px;
            font-size: 13px;
        }

        .category-hero h1 {
            font-size: 22px;
        }

        .hero-sub {
            font-size: 14px;
        }

        .custom-card {
            padding: 20px;
        }

        .tip-card {
            padding: 22px;
        }

        .faq-question {
            padding: 16px 18px;
            font-size: 14px;
        }

        .faq-answer {
            padding: 0 18px 16px;
            font-size: 13px;
        }
    }