/* roulang page: index */
:root {
            --color-primary: #FF5C00;
            --color-primary-hover: #E05200;
            --color-secondary: #00E5A0;
            --color-warning: #FF4D4F;
            --color-info: #FFB800;
            --color-bg-page: #0C0E12;
            --color-bg-section: #14161C;
            --color-bg-card: #1B1E26;
            --color-bg-card-hover: #20242E;
            --color-border: #2A2F3A;
            --color-text-main: #F0F2F5;
            --color-text-secondary: #9AA3AF;
            --color-text-muted: #5C6470;
            --color-disabled-bg: #262B35;
            --radius-btn: 8px;
            --radius-card: 12px;
            --radius-image: 12px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 12px 32px rgba(255, 92, 0, 0.12);
            --shadow-nav: 0 4px 20px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", -apple-system, sans-serif;
            --space-section: 88px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--color-text-main);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-image);
        }

        button,
        input {
            font-family: inherit;
        }

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

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

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

        .section-header .title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            position: relative;
            padding-top: 30px;
        }

        .section-header .title::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 32px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .section-header .link-all {
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: color 0.2s;
        }

        .section-header .link-all:hover {
            color: var(--color-primary);
        }

        /* 按钮体系 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-card);
        }

        .btn-primary:hover {
            background: var(--color-primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card-hover);
            color: #fff;
        }

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

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .btn-ghost:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }

        .btn-secondary:hover {
            background: rgba(255, 92, 0, 0.12);
            color: var(--color-primary);
            transform: translateY(-1px);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid #3A4150;
            color: var(--color-text-main);
        }

        .btn-ghost:hover {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
        }

        /* 导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 18, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
        }

        .header-brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

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

        .brand-logo {
            width: 40px;
            height: 40px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 20px;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text-main);
            line-height: 1.2;
        }

        .brand-domain {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-left: 4px;
            display: block;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all 0.2s;
        }

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

        .btn-header {
            padding: 10px 20px;
            font-size: 14px;
        }

        .header-channel-row {
            border-top: 1px solid var(--color-border);
            height: 48px;
            display: flex;
            align-items: center;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
        }

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

        .channel-nav a {
            padding: 12px 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-secondary);
            border-radius: 6px;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .channel-nav a:hover {
            color: var(--color-text-main);
            background: rgba(255, 92, 0, 0.08);
        }

        .channel-nav a.active {
            color: var(--color-text-main);
            background: rgba(255, 92, 0, 0.12);
            box-shadow: inset 0 -2px 0 var(--color-primary);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text-main);
            margin: 4px 0;
            border-radius: 2px;
            transition: all 0.3s;
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--color-bg-page);
            border-top: 1px solid var(--color-border);
            padding: 16px 24px;
        }

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

        .mobile-nav a {
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border);
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-secondary);
        }

        .mobile-nav a.active {
            color: var(--color-primary);
        }

        /* Hero 区 */
        .hero {
            position: relative;
            padding: 88px 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(12, 14, 18, 0.82);
        }

        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-left {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 229, 160, 0.1);
            border: 1px solid rgba(0, 229, 160, 0.3);
            color: var(--color-secondary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            color: var(--color-text-main);
        }

        .hero-sub {
            font-size: 16px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .hero-ctas {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-visual {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .hero-visual img {
            width: 100%;
            height: auto;
            display: block;
        }

        .hero-live-tag {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--color-primary);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(255, 92, 0, 0.4);
            z-index: 2;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-item {
            text-align: center;
            position: relative;
        }

        .stat-item+.stat-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10%;
            height: 80%;
            width: 1px;
            background: var(--color-border);
        }

        .stat-number {
            font-size: 32px;
            font-weight: 900;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1;
        }

        .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        /* 信任/价值条 */
        .value-strip {
            background: var(--color-bg-section);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0;
        }

        .value-strip .grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .value-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px;
            border-radius: var(--radius-card);
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            transition: border-color 0.3s, transform 0.2s;
        }

        .value-item:hover {
            border-color: rgba(255, 92, 0, 0.4);
            transform: translateY(-2px);
        }

        .value-item .icon {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 12px;
            background: rgba(255, 92, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
        }

        .value-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 2px;
        }

        .value-item p {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* 三步上手 */
        .steps-section .grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-section .grid::before {
            content: '';
            position: absolute;
            top: 60px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--color-border) 0 8px, transparent 8px 16px);
            z-index: 0;
        }

        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            z-index: 1;
            transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
        }

        .step-card:hover {
            border-color: rgba(255, 92, 0, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .step-number {
            font-size: 64px;
            font-weight: 900;
            color: var(--color-border);
            line-height: 1;
            transition: color 0.3s;
        }

        .step-card:hover .step-number {
            color: rgba(255, 92, 0, 0.2);
        }

        .step-icon {
            width: 48px;
            height: 48px;
            margin: 24px auto;
            border-radius: 12px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .step-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        /* 案例证明 */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .case-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 24px;
            transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
        }

        .case-card:hover {
            border-color: rgba(255, 92, 0, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .case-card .cover {
            border-radius: var(--radius-image);
            overflow: hidden;
            margin-bottom: 20px;
        }

        .case-card .cover img {
            width: 100%;
            height: auto;
            transition: transform 0.3s;
        }

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

        .case-result {
            font-size: 28px;
            font-weight: 900;
            color: var(--color-primary);
            margin: 12px 0 8px;
            font-variant-numeric: tabular-nums;
        }

        .case-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .view-all-wrap {
            text-align: center;
            margin-top: 40px;
        }

        /* FAQ */
        .faq-section .grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .faq-list {
            list-style: none;
        }

        .faq-list .accordion-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            padding: 0 20px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-list .accordion-item.is-active {
            border-color: rgba(255, 92, 0, 0.35);
        }

        .accordion-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-main);
            padding: 20px 0;
            position: relative;
            display: flex;
            align-items: center;
            gap: 12px;
            border-bottom: 1px solid var(--color-border);
        }

        .accordion-title::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--color-primary);
            flex-shrink: 0;
        }

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

        .accordion-item.is-active>.accordion-title {
            border-bottom: 1px solid var(--color-border);
            background: transparent;
        }

        .accordion-content {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 0 0 20px;
            background: transparent;
        }

        .faq-side-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 32px 24px;
            text-align: center;
        }

        .faq-side-card .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(255, 92, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
        }

        .faq-side-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .faq-side-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        /* CTA 区 */
        .cta-section {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(12, 14, 18, 0.8);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--color-text-secondary);
            margin-bottom: 32px;
        }

        .cta-form {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            text-align: left;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            color: var(--color-text-secondary);
            font-weight: 600;
        }

        .form-group input {
            background: var(--color-bg-page);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 14px 16px;
            height: 48px;
            font-size: 15px;
            color: var(--color-text-main);
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .form-group input::placeholder {
            color: var(--color-text-muted);
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
        }

        /* 最新信息区 */
        .latest-section {
            background: var(--color-bg-section);
        }

        .latest-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
            color: var(--color-text-main);
        }

        .feature-card:hover {
            border-color: rgba(255, 92, 0, 0.4);
            box-shadow: var(--shadow-card-hover);
            color: var(--color-text-main);
        }

        .feature-card img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .feature-card-content {
            padding: 24px;
        }

        .feature-card .tag {
            display: inline-block;
            background: rgba(255, 92, 0, 0.15);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .feature-card .meta {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .latest-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .list-row {
            display: grid;
            grid-template-columns: auto 1fr auto;
            gap: 16px;
            padding: 20px;
            border-bottom: 1px solid var(--color-border);
            transition: background 0.2s;
            align-items: center;
        }

        .list-row:last-child {
            border-bottom: none;
        }

        .list-row:hover {
            background: var(--color-bg-card-hover);
        }

        .list-row .tag {
            font-size: 12px;
            color: var(--color-secondary);
            background: rgba(0, 229, 160, 0.1);
            padding: 4px 8px;
            border-radius: var(--radius-tag);
            white-space: nowrap;
        }

        .list-row h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-main);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            margin-bottom: 4px;
            transition: color 0.2s;
        }

        .list-row:hover h4 {
            color: var(--color-primary);
        }

        .list-row p {
            font-size: 13px;
            color: var(--color-text-secondary);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .list-row time {
            font-size: 13px;
            color: var(--color-text-muted);
            white-space: nowrap;
            font-variant-numeric: tabular-nums;
        }

        .empty-state {
            background: var(--color-disabled-bg);
            border-radius: var(--radius-card);
            padding: 32px;
            text-align: center;
            font-size: 14px;
            color: var(--color-text-muted);
        }

        /* 页脚 */
        .site-footer {
            background: #0A0B0E;
            border-top: 1px solid var(--color-border);
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 16px;
        }

        .footer-domain {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        .footer-links h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-links ul {
            list-style: none;
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: color 0.2s;
        }

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

        .footer-contact p {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 12px;
        }

        .footer-contact .social-icons {
            display: flex;
            gap: 12px;
        }

        .footer-contact .social-icons a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-secondary);
            transition: all 0.2s;
        }

        .footer-contact .social-icons a:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .copyright {
            border-top: 1px solid var(--color-border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: var(--color-text-muted);
        }

        .copyright .right {
            display: flex;
            gap: 24px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            :root {
                --space-section: 64px;
            }

            .hero h1 {
                font-size: 40px;
            }

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

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

        @media (max-width: 768px) {
            .header-channel-row {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .header-actions {
                display: none;
            }

            .mobile-nav {
                display: none;
                flex-direction: column;
                background: var(--color-bg-page);
                border-top: 1px solid var(--color-border);
                padding: 16px 24px;
            }

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

            .hero {
                padding: 64px 0;
            }

            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-visual {
                display: none;
            }

            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px 0;
            }

            .stat-item:nth-child(3)::before {
                display: none;
            }

            .steps-section .grid {
                grid-template-columns: 1fr;
            }

            .steps-section .grid::before {
                display: none;
            }

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

            .faq-section .grid {
                grid-template-columns: 1fr;
            }

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

            .form-row {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .copyright {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .btn {
                width: 100%;
            }

            .hero-ctas {
                flex-direction: column;
            }

            .value-strip .grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --primary: #FF5C00;
  --primary-hover: #E05200;
  --accent: #00E5A0;
  --warning: #FF4D4F;
  --info: #FFB800;
  --bg-page: #0C0E12;
  --bg-section: #14161C;
  --bg-card: #1B1E26;
  --bg-card-hover: #20242E;
  --border: #2A2F3A;
  --border-strong: #3A4150;
  --text-main: #F0F2F5;
  --text-secondary: #9AA3AF;
  --text-weak: #5C6470;
  --disabled-bg: #262B35;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
  --shadow-hover: 0 12px 32px rgba(255,92,0,0.12);
  --shadow-nav: 0 4px 20px rgba(0,0,0,0.35);
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg-page);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
a { color: var(--text-main); text-decoration: none; transition: color .25s; }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }

/* ========== 容器 ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 按钮体系 ========== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 700; border-radius: var(--radius-md);
  padding: 14px 32px; border: none; cursor: pointer; transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(255,92,0,0.25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-secondary { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-secondary:hover { background: rgba(255,92,0,0.12); color: var(--primary); border-color: var(--primary-hover); }
.btn-secondary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-ghost { background: transparent; border: 1px solid var(--border-strong); color: var(--text-main); padding: 10px 24px; font-size: 14px; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { background: var(--disabled-bg); color: var(--text-weak); pointer-events: none; }

/* ========== 表单控件 ========== */
input[type="text"], input[type="email"], input[type="tel"], input[type="password"], select, textarea {
  background: var(--bg-section);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  height: 48px; padding: 0 16px;
  color: var(--text-main); font-size: 15px;
  box-shadow: none; width: 100%;
  transition: border-color .25s, box-shadow .25s;
}
input::placeholder, textarea::placeholder { color: var(--text-weak); }
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(255,92,0,0.15);
}

/* ========== Header ========== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(12,14,18,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
}
.brand-row { height: 72px; border-bottom: 1px solid var(--border); }
.brand-row .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 40px; height: 40px; background: var(--primary); color: #fff;
  font-weight: 900; font-size: 20px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 16px rgba(255,92,0,0.3);
}
.brand-name { font-size: 20px; font-weight: 800; color: var(--text-main); line-height: 1.2; display: block; }
.brand-domain { font-size: 12px; color: var(--text-weak); display: block; line-height: 1.2; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn { padding: 10px 24px; font-size: 14px; }

/* ========== 频道导航 ========== */
.channel-row { height: 48px; background: rgba(12,14,18,0.6); }
.channel-nav { display: flex; align-items: center; gap: 8px; height: 100%; }
.channel-nav a {
  padding: 10px 18px; font-size: 15px; font-weight: 600;
  color: var(--text-secondary); border-radius: var(--radius-md);
  position: relative; transition: all .25s;
  white-space: nowrap;
}
.channel-nav a:hover { color: var(--text-main); background: rgba(255,92,0,0.08); }
.channel-nav a.active { color: var(--text-main); background: rgba(255,92,0,0.12); }
.channel-nav a.active::after {
  content: ''; position: absolute; bottom: 0; left: 18px; right: 18px;
  height: 2px; background: var(--primary); border-radius: 2px;
}

/* ========== Hero ========== */
.hero {
  padding: 100px 0;
  background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  position: relative;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(12,14,18,0.72) 0%, rgba(12,14,18,0.88) 100%);
}
.hero .container { position: relative; z-index: 1; text-align: center; max-width: 860px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,229,160,0.12); color: var(--accent);
  border: 1px solid rgba(0,229,160,0.3);
  font-size: 13px; font-weight: 600; padding: 6px 16px;
  border-radius: 100px; margin-bottom: 24px;
}
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.hero h1 { font-size: 48px; font-weight: 900; line-height: 1.15; margin-bottom: 16px; letter-spacing: 1px; }
.hero-sub { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 32px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ========== 数据统计条 ========== */
.stats-bar { padding: 40px 0; background: var(--bg-section); border-bottom: 1px solid var(--border); }
.stats-bar .container { display: flex; justify-content: space-around; align-items: center; gap: 24px; flex-wrap: wrap; }
.stat-item { text-align: center; padding: 0 24px; position: relative; }
.stat-item + .stat-item::before { content: ''; position: absolute; left: 0; top: 20%; bottom: 20%; width: 1px; background: var(--border); }
.stat-item strong { display: block; font-size: 32px; font-weight: 900; color: var(--primary); line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat-item span { display: block; font-size: 14px; color: var(--text-secondary); margin-top: 4px; }

/* ========== Section Header ========== */
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 32px; position: relative;
}
.section-header h2 { font-size: 32px; font-weight: 800; line-height: 1.3; }
.section-header h2::before {
  content: ''; display: block; width: 32px; height: 4px;
  background: var(--primary); border-radius: 2px; margin-bottom: 12px;
}
.section-link { font-size: 14px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 4px; }
.section-link:hover { color: var(--primary); }

/* ========== 赛事资讯列表 ========== */
.news-section { padding: 88px 0; background: var(--bg-page); }
.match-list { border-top: 1px solid var(--border); }
.match-item {
  display: flex; align-items: center; gap: 24px;
  padding: 24px 16px; border-bottom: 1px solid var(--border);
  transition: background .3s, padding .3s;
  border-radius: var(--radius-md);
}
.match-item:hover { background: rgba(255,92,0,0.03); padding-left: 20px; padding-right: 20px; }
.match-date {
  width: 60px; height: 60px; flex-shrink: 0;
  background: var(--bg-section); border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: border-color .3s;
}
.match-item:hover .match-date { border-color: rgba(255,92,0,0.5); }
.match-date .d-day { font-size: 24px; font-weight: 900; color: var(--primary); line-height: 1; }
.match-date .d-month { font-size: 12px; color: var(--text-weak); margin-top: 4px; line-height: 1; }
.match-body { flex: 1; min-width: 0; }
.match-body h3 { font-size: 20px; font-weight: 700; line-height: 1.4; color: var(--text-main); transition: color .25s; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.match-item:hover .match-body h3 { color: var(--primary); }
.match-body p { font-size: 14px; color: var(--text-secondary); margin-top: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.match-arrow {
  width: 40px; height: 40px; flex-shrink: 0;
  border: 1px solid var(--border-strong); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all .3s;
}
.match-arrow svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.match-item:hover .match-arrow { background: var(--primary); border-color: var(--primary); color: #fff; transform: translateX(4px); }

/* ========== 分页 ========== */
.site-pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px; }
.page-btn {
  min-width: 40px; height: 40px; padding: 0 8px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); font-size: 14px; font-weight: 600;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); transition: all .25s;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--bg-card-hover); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn.disabled { opacity: .4; pointer-events: none; }

/* ========== 赛事特色 / 图文区块 ========== */
.features { padding: 88px 0; background: var(--bg-section); }
.feature-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.feature-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); }
.feature-visual img { width: 100%; height: 420px; object-fit: cover; transition: transform .4s; }
.feature-visual:hover img { transform: scale(1.03); }
.feature-tag {
  position: absolute; top: 16px; left: 16px;
  background: var(--accent); color: #0C0E12;
  font-size: 12px; font-weight: 800; padding: 4px 12px;
  border-radius: var(--radius-sm); letter-spacing: 1px;
}
.feature-content h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.feature-content > p { color: var(--text-secondary); margin-bottom: 32px; max-width: 480px; }
.feature-list { display: flex; flex-direction: column; gap: 24px; }
.feature-list li { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: rgba(255,92,0,0.1); border: 1px solid rgba(255,92,0,0.3);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.feature-icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-list strong { font-size: 16px; font-weight: 700; display: block; margin-bottom: 2px; }
.feature-list p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ========== FAQ ========== */
.faq-section { padding: 88px 0; background: var(--bg-page); }
.faq-section .container { max-width: 860px; }
.custom-accordion { background: transparent; border: none; }
.custom-accordion .accordion-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); margin-bottom: 12px;
  overflow: hidden; transition: border-color .3s, background .3s;
}
.custom-accordion .accordion-item.is-active { border-color: rgba(255,92,0,0.35); background: var(--bg-card); }
.custom-accordion .accordion-title {
  background: transparent; border: none; padding: 18px 20px 18px 32px;
  font-size: 16px; font-weight: 700; color: var(--text-main);
  position: relative; line-height: 1.5; display: block;
  transition: background .3s;
}
.custom-accordion .accordion-title::before {
  content: ''; position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 18px; background: var(--primary);
  border-radius: 2px;
}
.custom-accordion .accordion-title:hover { background: rgba(255,92,0,0.04); color: var(--text-main); }
.custom-accordion .accordion-title:focus { outline: 2px solid var(--accent); outline-offset: -2px; }
.custom-accordion .accordion-title::after {
  content: '+'; position: absolute; right: 20px; top: 50%;
  transform: translateY(-50%);
  font-size: 20px; font-weight: 400; color: var(--text-secondary);
  transition: transform .3s;
  width: auto; background: transparent;
}
.custom-accordion .accordion-item.is-active .accordion-title::after { transform: translateY(-50%) rotate(45deg); color: var(--primary); }
.custom-accordion .accordion-content {
  background: transparent; border: none;
  padding: 0 24px 20px 32px;
  color: var(--text-secondary); font-size: 14px; line-height: 1.75;
}

/* ========== 频道切换条 ========== */
.channel-switch { padding: 48px 0; background: var(--bg-section); border-top: 1px solid var(--border); }
.channel-switch .container { display: flex; align-items: center; justify-content: center; gap: 24px; flex-wrap: wrap; }
.channel-switch p { font-size: 15px; color: var(--text-secondary); }
.switch-links { display: flex; gap: 12px; }
.switch-links a {
  padding: 10px 24px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 100px;
  font-size: 14px; font-weight: 600; color: var(--text-main);
  transition: all .25s;
}
.switch-links a:hover { border-color: var(--primary); color: var(--primary); background: rgba(255,92,0,0.06); transform: translateY(-1px); }

/* ========== CTA 订阅区 ========== */
.cta-section {
  padding: 88px 0;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  position: relative;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(12,14,18,0.85); }
.cta-box {
  position: relative; z-index: 1;
  max-width: 640px; margin: 0 auto;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px;
  text-align: center; box-shadow: var(--shadow-card);
}
.cta-box h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.cta-box > p { color: var(--text-secondary); margin-bottom: 24px; font-size: 15px; }
.cta-form { display: flex; gap: 12px; }
.cta-form input { flex: 1; }
.cta-form .btn { height: 48px; padding: 0 32px; }
.cta-tip { font-size: 12px; color: var(--text-weak); margin-top: 16px; }

/* ========== 页脚 ========== */
.site-footer { background: #0A0B0E; border-top: 1px solid var(--border); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 12px; max-width: 320px; }
.footer-brand .footer-domain { font-size: 14px; color: var(--text-weak); }
.footer-links h5, .footer-contact h5 { font-size: 14px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; letter-spacing: 1px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: var(--text-secondary); transition: color .25s, padding-left .25s; }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
.social-icons { display: flex; gap: 12px; margin-top: 16px; }
.social-icons a {
  width: 36px; height: 36px; border: 1px solid var(--border-strong);
  border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all .25s;
}
.social-icons a:hover { color: var(--primary); border-color: var(--primary); background: rgba(255,92,0,0.08); }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { font-size: 14px; color: var(--text-weak); }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: 14px; color: var(--text-weak); }
.footer-bottom-links a:hover { color: var(--primary); }

/* ========== 响应式断点 ========== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-wrap { gap: 32px; }
}

@media (max-width: 768px) {
  .brand-row { height: 64px; }
  .brand-domain { display: none; }
  .header-actions .btn { padding: 8px 16px; font-size: 13px; }
  .channel-row { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .channel-nav { min-width: max-content; gap: 4px; }
  .channel-nav a { padding: 10px 14px; font-size: 14px; }
  .hero { padding: 64px 0; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .stats-bar .container { gap: 16px; }
  .stat-item { flex: 1 1 40%; padding: 8px; }
  .stat-item + .stat-item::before { display: none; }
  .stat-item strong { font-size: 24px; }
  .news-section { padding: 56px 0; }
  .match-body h3 { font-size: 16px; }
  .match-body p { font-size: 13px; }
  .feature-wrap { grid-template-columns: 1fr; }
  .feature-visual img { height: 260px; }
  .faq-section { padding: 56px 0; }
  .cta-section { padding: 56px 0; }
  .cta-box { padding: 32px 24px; }
  .cta-box h2 { font-size: 26px; }
  .cta-form { flex-direction: column; }
  .cta-form .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom .container { justify-content: center; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-logo { width: 36px; height: 36px; font-size: 18px; }
  .brand-name { font-size: 18px; }
  .header-actions .btn-ghost { display: none; }
  .section-header h2 { font-size: 26px; }
  .section-header { margin-bottom: 24px; }
  .match-item { gap: 16px; padding: 18px 8px; }
  .match-item:hover { padding-left: 12px; padding-right: 12px; }
  .match-date { width: 48px; height: 48px; }
  .match-date .d-day { font-size: 20px; }
  .match-date .d-month { font-size: 11px; }
  .match-body h3 { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
  .match-body p { display: none; }
  .page-btn { min-width: 36px; height: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom-links { gap: 16px; flex-wrap: wrap; }
  .switch-links { flex-direction: column; width: 100%; }
  .switch-links a { text-align: center; }
  .channel-switch .container { flex-direction: column; gap: 16px; }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #FF5C00;
            --color-primary-hover: #E05200;
            --color-accent: #00E5A0;
            --color-warning: #FF4D4F;
            --color-info: #FFB800;
            --color-bg-page: #0C0E12;
            --color-bg-section: #14161C;
            --color-bg-card: #1B1E26;
            --color-bg-card-hover: #20242E;
            --color-border: #2A2F3A;
            --color-border-light: #3A4150;
            --color-text: #F0F2F5;
            --color-text-secondary: #9AA3AF;
            --color-text-weak: #5C6470;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
            --shadow-card-hover: 0 12px 32px rgba(255,92,0,0.12);
            --shadow-nav: 0 4px 20px rgba(0,0,0,0.35);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            background: var(--color-bg-page);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
        }
        a { color: inherit; text-decoration: none; }
        a:hover { color: var(--color-primary); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 800; line-height: 1.3; color: var(--color-text); }
        button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
        .grid-container { max-width: 1200px; padding: 0 24px; }

        /* ===== 按钮体系 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            line-height: 1;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255,92,0,0.25);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: rgba(255,92,0,0.12);
            color: var(--color-primary);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid var(--color-border-light);
            color: var(--color-text);
        }
        .btn-ghost:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .btn-sm { padding: 10px 20px; font-size: 14px; }
        .btn-lg { padding: 16px 40px; font-size: 16px; }
        .btn[disabled] {
            background: var(--color-disabled-bg, #262B35);
            color: var(--color-disabled-text, #5C6470);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ===== 导航系统 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(12,14,18,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-nav);
        }
        .header-top {
            border-bottom: 1px solid var(--color-border);
        }
        .header-top-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-logo {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary), #FF8C42);
            color: #fff;
            font-weight: 900;
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(255,92,0,0.3);
            transition: transform 0.2s;
        }
        .brand:hover .brand-logo { transform: rotate(-6deg) scale(1.05); }
        .brand-name {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            display: block;
            line-height: 1.2;
        }
        .brand-domain {
            font-size: 12px;
            color: var(--color-text-weak);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-toggle {
            background: transparent;
            border: none;
            color: var(--color-text-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            padding: 8px;
            border-radius: var(--radius-md);
            transition: color 0.2s, background 0.2s;
        }
        .search-toggle:hover {
            color: var(--color-text);
            background: rgba(255,255,255,0.06);
        }
        .user-entry {
            font-size: 14px;
            color: var(--color-text-secondary);
            padding: 6px 4px;
        }
        .user-entry:hover { color: var(--color-text); }

        .channel-nav {
            background: rgba(20,22,28,0.96);
            border-bottom: 1px solid var(--color-border);
        }
        .channel-nav-inner {
            display: flex;
            align-items: center;
            height: 48px;
            gap: 2px;
        }
        .channel-nav-inner a {
            padding: 0 20px;
            height: 48px;
            display: inline-flex;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-secondary);
            border-bottom: 2px solid transparent;
            transition: color 0.2s, background 0.2s, border-color 0.2s;
            white-space: nowrap;
        }
        .channel-nav-inner a:hover {
            color: var(--color-text);
            background: rgba(255,92,0,0.06);
        }
        .channel-nav-inner a.active {
            color: var(--color-text);
            background: rgba(255,92,0,0.1);
            border-bottom-color: var(--color-primary);
        }

        /* ===== 面包屑 ===== */
        .article-breadcrumb {
            padding: 24px 0 0;
            font-size: 14px;
            color: var(--color-text-secondary);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0;
        }
        .article-breadcrumb a { color: var(--color-text-secondary); transition: color 0.2s; }
        .article-breadcrumb a:hover { color: var(--color-primary); }
        .article-breadcrumb .sep { margin: 0 10px; color: var(--color-text-weak); }
        .article-breadcrumb .current {
            color: var(--color-text-weak);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 320px;
        }

        /* ===== 文章头部 ===== */
        .article-header {
            padding: 32px 0 24px;
        }
        .article-category {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(255,92,0,0.12);
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
            border: 1px solid rgba(255,92,0,0.2);
        }
        .article-title {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 900;
            max-width: 860px;
            margin-bottom: 22px;
            letter-spacing: -0.5px;
            color: var(--color-text);
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 14px;
            color: var(--color-text-secondary);
            padding-bottom: 24px;
            border-bottom: 1px solid var(--color-border);
            flex-wrap: wrap;
        }
        .article-meta .dot { color: var(--color-text-weak); }
        .article-meta .author { font-weight: 600; color: #BFC7D1; }
        .article-meta time, .article-meta .views {
            font-variant-numeric: tabular-nums;
        }

        /* ===== 封面图 ===== */
        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin: 0 0 8px;
            position: relative;
            box-shadow: var(--shadow-card);
        }
        .article-cover img {
            width: 100%;
            aspect-ratio: 16 / 7;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .article-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(12,14,18,0.3));
            pointer-events: none;
        }
        .article-cover:hover img { transform: scale(1.02); }

        /* ===== 正文阅读区 ===== */
        .article-content-section {
            padding: 24px 0 48px;
        }
        .article-body {
            max-width: 780px;
            margin: 0 auto;
            padding: 24px 0 32px;
            font-size: 16px;
            line-height: 1.75;
            color: #C9CFD8;
        }
        .article-body > p:first-of-type {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.8;
        }
        .article-body p {
            margin-bottom: 24px;
            letter-spacing: 0.2px;
        }
        .article-body h2 {
            font-size: 28px;
            font-weight: 800;
            margin: 48px 0 18px;
            padding-left: 16px;
            border-left: 4px solid var(--color-primary);
            color: var(--color-text);
        }
        .article-body h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 36px 0 14px;
            color: var(--color-text);
        }
        .article-body h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 28px 0 12px;
            color: var(--color-text);
        }
        .article-body ul {
            list-style: disc;
            margin: 0 0 24px 24px;
        }
        .article-body ol {
            list-style: decimal;
            margin: 0 0 24px 24px;
        }
        .article-body li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: var(--color-bg-card);
            padding: 18px 24px;
            margin: 28px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--color-text-secondary);
            font-size: 15px;
        }
        .article-body img {
            border-radius: var(--radius-lg);
            margin: 32px 0;
            width: 100%;
            height: auto;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid var(--color-border);
            padding: 14px 16px;
            text-align: left;
            font-size: 15px;
        }
        .article-body table th {
            background: var(--color-bg-section);
            font-weight: 700;
            color: var(--color-text);
        }
        .article-body table tr:hover td {
            background: var(--color-bg-card-hover);
        }
        .article-body a {
            color: var(--color-primary);
            border-bottom: 1px solid rgba(255,92,0,0.3);
            transition: border-color 0.2s;
        }
        .article-body a:hover {
            border-bottom-color: var(--color-primary);
        }
        .article-body code {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--color-info);
        }

        /* ===== 内容未找到 ===== */
        .article-not-found {
            max-width: 640px;
            margin: 80px auto;
            text-align: center;
            padding: 60px 40px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
        }
        .article-not-found h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .article-not-found p {
            color: var(--color-text-secondary);
            margin-bottom: 28px;
            font-size: 15px;
        }
        .article-not-found .btn {
            min-width: 160px;
        }

        /* ===== 文末标签 ===== */
        .article-tags {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            padding: 28px 0 36px;
            border-bottom: 1px solid var(--color-border);
        }
        .tag-pill {
            padding: 6px 16px;
            border-radius: 999px;
            background: var(--color-bg-section);
            border: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text-secondary);
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }
        .tag-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(255,92,0,0.06);
        }

        /* ===== 上一篇 / 下一篇 ===== */
        .post-nav {
            max-width: 780px;
            margin: 36px auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .post-nav-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            transition: background 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
            display: block;
        }
        .post-nav-card:hover {
            background: var(--color-bg-card-hover);
            border-color: rgba(255,92,0,0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .post-nav-card .label {
            font-size: 13px;
            color: var(--color-text-weak);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 10px;
        }
        .post-nav-card .title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-nav-card.next { text-align: right; }
        .post-nav-card.next .label { justify-content: flex-end; }

        /* ===== 相关推荐区 ===== */
        .related-section {
            padding: 64px 0 16px;
            background: var(--color-bg-section);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 36px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            position: relative;
            padding-top: 30px;
            margin: 0;
            color: var(--color-text);
        }
        .section-title::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 32px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: background 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
        }
        .related-card:hover {
            background: var(--color-bg-card-hover);
            border-color: rgba(255,92,0,0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .related-card-content {
            padding: 16px 20px 20px;
        }
        .related-card-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card-content h3 a { color: var(--color-text); transition: color 0.2s; }
        .related-card-content h3 a:hover { color: var(--color-primary); }
        .related-card-content time {
            font-size: 13px;
            color: var(--color-text-weak);
            font-variant-numeric: tabular-nums;
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: 88px 0;
            background:
                linear-gradient(135deg, rgba(12,14,18,0.95), rgba(20,22,28,0.88)),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-top: 1px solid var(--color-border);
            text-align: center;
        }
        .cta-title {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 14px;
            color: var(--color-text);
            letter-spacing: -0.5px;
        }
        .cta-desc {
            font-size: 16px;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .cta-form-inline {
            display: flex;
            gap: 12px;
            max-width: 680px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 18px;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
        }
        .cta-form-inline input[type="tel"],
        .cta-form-inline input[type="text"] {
            flex: 1;
            min-width: 160px;
            height: 48px;
            background: var(--color-bg-section);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 0 16px;
            color: var(--color-text);
            font-size: 15px;
            transition: border-color 0.2s, box-shadow 0.2s;
            outline: none;
        }
        .cta-form-inline input::-webkit-input-placeholder { color: var(--color-text-weak); }
        .cta-form-inline input::-moz-placeholder { color: var(--color-text-weak); }
        .cta-form-inline input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(255,92,0,0.15);
        }
        .cta-form-inline .btn { height: 48px; padding-top: 0; padding-bottom: 0; }
        .cta-note {
            margin-top: 18px;
            font-size: 13px;
            color: var(--color-text-weak);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0A0B0E;
            border-top: 1px solid var(--color-border);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand {
            margin-bottom: 18px;
        }
        .footer-brand .brand:hover .brand-logo { transform: none; }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 8px;
        }
        .footer-brand .footer-domain {
            font-size: 13px;
            color: var(--color-text-weak);
            margin-top: 12px;
        }
        .footer-links h5,
        .footer-contact h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .footer-links ul li {
            margin-bottom: 12px;
        }
        .footer-links ul li a {
            font-size: 14px;
            color: var(--color-text-secondary);
            transition: color 0.2s, padding-left 0.2s;
        }
        .footer-links ul li a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .social-icons {
            display: flex;
            gap: 10px;
        }
        .social-icons a {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: var(--color-bg-section);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-secondary);
            transition: border-color 0.2s, color 0.2s, background 0.2s;
        }
        .social-icons a:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(255,92,0,0.08);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 20px 0;
            display: flex;
            justify-content: flex-start;
            align-items: center;
            gap: 24px;
            font-size: 13px;
            color: var(--color-text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-title { font-size: 36px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
            .footer-contact { grid-column: span 2; }
        }

        @media (max-width: 768px) {
            .header-top-inner { height: 62px; }
            .brand-logo { width: 36px; height: 36px; font-size: 18px; }
            .brand-name { font-size: 18px; }
            .brand-domain { font-size: 11px; }
            .header-tools .btn-sm { padding: 8px 16px; font-size: 13px; }
            .user-entry { display: none; }
            .channel-nav-inner { overflow-x: auto; gap: 0; }
            .channel-nav-inner a {
                padding: 0 16px;
                font-size: 14px;
                height: 48px;
                flex-shrink: 0;
            }
            .article-breadcrumb { padding-top: 16px; }
            .article-title { font-size: 30px; }
            .article-meta { gap: 10px; font-size: 13px; }
            .article-cover img { aspect-ratio: 16 / 9; }
            .article-body { padding: 16px 0 24px; }
            .article-body h2 { font-size: 24px; }
            .article-body h3 { font-size: 20px; }
            .post-nav { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .cta-section { padding: 64px 0; }
            .cta-title { font-size: 28px; }
            .cta-form-inline { flex-direction: column; padding: 16px; }
            .cta-form-inline input[type="tel"],
            .cta-form-inline input[type="text"] { width: 100%; flex: none; }
            .cta-form-inline .btn { width: 100%; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .footer-brand { grid-column: span 2; }
            .footer-contact { grid-column: span 2; }
            .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
        }

        @media (max-width: 520px) {
            .grid-container { padding: 0 16px; }
            .header-top-inner { height: 56px; }
            .brand-logo { width: 32px; height: 32px; font-size: 16px; }
            .brand-name { font-size: 16px; }
            .search-toggle { display: none; }
            .article-title { font-size: 25px; }
            .article-meta .views { display: none; }
            .section-title { font-size: 26px; }
            .article-not-found { padding: 40px 24px; margin: 40px auto; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-brand { grid-column: auto; }
            .footer-contact { grid-column: auto; }
        }

        /* Foundation 覆盖 */
        .button { margin: 0; }
        .grid-container { max-width: 1200px; }
        table { background: transparent; border: none; }
        a { line-height: inherit; }
        input, textarea { box-shadow: none; }
        ul, ol { margin: 0; padding: 0; }
        h1, h2, h3, h4, h5, h6 { margin: 0; }

/* roulang page: category3 */
:root {
        --color-primary: #FF5C00;
        --color-primary-hover: #E05200;
        --color-secondary: #00E5A0;
        --color-warning: #FF4D4F;
        --color-info: #FFB800;
        --color-bg-page: #0C0E12;
        --color-bg-section: #14161C;
        --color-bg-card: #1B1E26;
        --color-bg-card-hover: #20242E;
        --color-border: #2A2F3A;
        --color-text-main: #F0F2F5;
        --color-text-secondary: #9AA3AF;
        --color-text-muted: #5C6470;
        --color-disabled-bg: #262B35;
        --color-disabled-text: #5C6470;
        --radius-btn: 8px;
        --radius-card: 12px;
        --radius-tag: 4px;
        --radius-hero: 16px;
        --shadow-card: 0 2px 12px rgba(0,0,0,0.25);
        --shadow-card-hover: 0 12px 32px rgba(255,92,0,0.12);
        --shadow-nav: 0 4px 20px rgba(0,0,0,0.35);
        --space-section: 88px;
        --space-section-mobile: 56px;
        --container-width: 1200px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        padding: 0;
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        background: var(--color-bg-page);
        color: var(--color-text-main);
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    button,
    input {
        font-family: inherit;
    }

    .container {
        max-width: var(--container-width);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

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

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

    .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        margin-bottom: 36px;
    }

    .section-head h2 {
        position: relative;
        margin: 0;
        font-size: 32px;
        font-weight: 800;
        letter-spacing: 0.02em;
        line-height: 1.3;
        color: var(--color-text-main);
        padding-left: 20px;
    }

    .section-head h2::before {
        content: "";
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 32px;
        height: 4px;
        background: var(--color-primary);
        border-radius: 2px;
    }

    .section-head .more-link {
        font-size: 14px;
        color: var(--color-text-secondary);
    }

    .section-head .more-link:hover {
        color: var(--color-primary);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 48px;
        padding: 0 32px;
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 700;
        border: 1px solid transparent;
        cursor: pointer;
        transition: all 0.25s ease;
        background: none;
        line-height: 1;
        letter-spacing: 0.02em;
    }

    .btn:focus-visible {
        outline: 2px solid var(--color-secondary);
        outline-offset: 2px;
    }

    .btn-primary {
        background: var(--color-primary);
        color: #fff;
    }

    .btn-primary:hover {
        background: var(--color-primary-hover);
        color: #fff;
        transform: translateY(-1px);
        box-shadow: 0 8px 24px rgba(255, 92, 0, 0.25);
    }

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

    .btn-outline {
        border-color: var(--color-primary);
        color: var(--color-primary);
        background: transparent;
    }

    .btn-outline:hover {
        background: rgba(255, 92, 0, 0.12);
        color: var(--color-primary);
    }

    .btn-ghost {
        border-color: #3A4150;
        color: var(--color-text-main);
        background: transparent;
    }

    .btn-ghost:hover {
        border-color: var(--color-secondary);
        color: var(--color-secondary);
    }

    .btn-sm {
        height: 36px;
        padding: 0 20px;
        font-size: 14px;
        border-radius: 6px;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 4px 10px;
        background: rgba(255, 92, 0, 0.12);
        color: var(--color-primary);
        border-radius: var(--radius-tag);
        font-size: 12px;
        font-weight: 700;
        line-height: 1;
        letter-spacing: 0.04em;
    }

    .tag-secondary {
        background: rgba(0, 229, 160, 0.12);
        color: var(--color-secondary);
    }

    .tag-info {
        background: rgba(255, 184, 0, 0.12);
        color: var(--color-info);
    }

    .status-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 5px 14px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 700;
        background: rgba(0, 229, 160, 0.15);
        color: var(--color-secondary);
        border: 1px solid rgba(0, 229, 160, 0.35);
        letter-spacing: 0.03em;
    }

    .status-badge::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--color-secondary);
        animation: pulse 2s infinite;
    }

    @keyframes pulse {
        0%,
        100% {
            opacity: 1;
            box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.4);
        }
        50% {
            opacity: 0.7;
            box-shadow: 0 0 0 6px rgba(0, 229, 160, 0);
        }
    }

    /* ===== 导航 ===== */
    .site-header {
        background: var(--color-bg-page);
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: var(--shadow-nav);
        border-bottom: 1px solid var(--color-border);
    }

    .brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
        gap: 24px;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--color-primary);
        color: #fff;
        font-size: 20px;
        font-weight: 900;
        border-radius: 10px;
        font-style: normal;
        box-shadow: 0 4px 12px rgba(255, 92, 0, 0.35);
    }

    .brand-name {
        display: block;
        font-size: 18px;
        font-weight: 800;
        color: var(--color-text-main);
        line-height: 1.2;
        letter-spacing: 0.02em;
    }

    .brand-domain {
        display: block;
        font-size: 11px;
        color: var(--color-text-muted);
        line-height: 1.2;
        letter-spacing: 0.08em;
        text-transform: uppercase;
    }

    .brand-actions {
        display: flex;
        align-items: center;
        gap: 16px;
    }

    .search-box {
        display: flex;
        align-items: center;
        width: 240px;
        height: 40px;
        background: var(--color-bg-section);
        border: 1px solid #3A4150;
        border-radius: 20px;
        padding-left: 16px;
        transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .search-box:focus-within {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
    }

    .search-box input {
        flex: 1;
        background: none;
        border: none;
        outline: none;
        color: var(--color-text-main);
        font-size: 14px;
        padding: 0 8px 0 0;
        height: 100%;
        box-shadow: none;
        margin: 0;
    }

    .search-box input::placeholder {
        color: var(--color-text-muted);
    }

    .search-box button {
        background: none;
        border: none;
        color: var(--color-text-muted);
        font-size: 14px;
        padding: 0 14px 0 0;
        cursor: pointer;
    }

    .search-box button:hover {
        color: var(--color-primary);
    }

    .mobile-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 10px;
    }

    .mobile-toggle span {
        display: block;
        width: 22px;
        height: 2px;
        background: var(--color-text-main);
        border-radius: 2px;
        transition: all 0.3s ease;
    }

    .channel-nav {
        background: rgba(12, 14, 18, 0.92);
        border-top: 1px solid var(--color-border);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .channel-nav .container {
        display: flex;
        align-items: center;
        gap: 4px;
        height: 48px;
        overflow-x: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

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

    .channel-nav a {
        display: inline-flex;
        align-items: center;
        padding: 0 24px;
        height: 48px;
        font-size: 15px;
        font-weight: 600;
        color: var(--color-text-secondary);
        white-space: nowrap;
        position: relative;
        border-bottom: 2px solid transparent;
        transition: color 0.25s ease;
    }

    .channel-nav a:hover {
        color: var(--color-text-main);
    }

    .channel-nav a.active {
        color: var(--color-text-main);
        border-bottom-color: var(--color-primary);
        background: rgba(255, 92, 0, 0.08);
    }

    /* ===== Hero ===== */
    .page-hero {
        background: linear-gradient(rgba(12, 14, 18, 0.65), rgba(12, 14, 18, 0.85)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        padding: 96px 0 72px;
        position: relative;
        border-bottom: 1px solid var(--color-border);
    }

    .page-hero .container {
        display: flex;
        justify-content: center;
        text-align: center;
        position: relative;
        z-index: 2;
    }

    .hero-content {
        max-width: 760px;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 16px;
        border-radius: 30px;
        background: rgba(255, 92, 0, 0.15);
        border: 1px solid rgba(255, 92, 0, 0.3);
        color: var(--color-primary);
        font-size: 13px;
        font-weight: 700;
        margin-bottom: 24px;
        letter-spacing: 0.05em;
    }

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

    .page-hero h1 {
        font-size: 48px;
        font-weight: 900;
        line-height: 1.15;
        color: var(--color-text-main);
        margin: 0 0 20px;
        letter-spacing: 0.02em;
    }

    .page-hero .hero-subtitle {
        font-size: 17px;
        line-height: 1.75;
        color: var(--color-text-secondary);
        margin: 0 auto 36px;
        max-width: 620px;
    }

    .hero-actions {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    /* ===== 当期热门活动 ===== */
    .featured-event-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr;
        gap: 24px;
        align-items: stretch;
    }

    .featured-event-card {
        position: relative;
        border-radius: var(--radius-card);
        overflow: hidden;
        min-height: 400px;
        display: flex;
        align-items: flex-end;
        background: linear-gradient(rgba(12, 14, 18, 0.55), rgba(12, 14, 18, 0.85)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-card);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .featured-event-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(255, 92, 0, 0.4);
    }

    .featured-event-card .card-body {
        padding: 32px;
        width: 100%;
    }

    .featured-event-card .status-badge {
        margin-bottom: 16px;
    }

    .featured-event-card h3 {
        font-size: 28px;
        font-weight: 800;
        margin: 0 0 12px;
        line-height: 1.3;
        color: var(--color-text-main);
    }

    .featured-event-card p {
        font-size: 15px;
        color: var(--color-text-secondary);
        margin: 0 0 24px;
        line-height: 1.75;
        max-width: 90%;
    }

    .featured-event-card .btn {
        height: 42px;
        padding: 0 24px;
        font-size: 14px;
    }

    .mini-card-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .mini-card {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        display: flex;
        gap: 16px;
        padding: 16px;
        transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .mini-card:hover {
        background: var(--color-bg-card-hover);
        border-color: rgba(255, 92, 0, 0.4);
        box-shadow: var(--shadow-card-hover);
    }

    .mini-card img {
        width: 120px;
        height: 90px;
        object-fit: cover;
        border-radius: 8px;
        flex-shrink: 0;
    }

    .mini-card-body {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        min-width: 0;
    }

    .mini-card-body .tag {
        align-self: flex-start;
    }

    .mini-card-body h4 {
        font-size: 17px;
        font-weight: 700;
        margin: 0;
        color: var(--color-text-main);
        line-height: 1.4;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .mini-card-body .date {
        font-size: 13px;
        color: var(--color-text-muted);
        font-variant-numeric: tabular-nums;
    }

    /* ===== 活动类型卖点 ===== */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .feature-item {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 32px 24px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        position: relative;
    }

    .feature-item:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(255, 92, 0, 0.35);
    }

    .feature-item .feature-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: rgba(255, 92, 0, 0.12);
        color: var(--color-primary);
        font-size: 22px;
        margin-bottom: 20px;
    }

    .feature-item:nth-child(2) .feature-icon {
        background: rgba(0, 229, 160, 0.12);
        color: var(--color-secondary);
    }

    .feature-item:nth-child(3) .feature-icon {
        background: rgba(255, 184, 0, 0.12);
        color: var(--color-info);
    }

    .feature-item:nth-child(4) .feature-icon {
        background: rgba(255, 77, 79, 0.12);
        color: var(--color-warning);
    }

    .feature-item h3 {
        font-size: 20px;
        font-weight: 700;
        margin: 0 0 10px;
        color: var(--color-text-main);
    }

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

    /* ===== 参赛流程 ===== */
    .flow-steps {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        position: relative;
    }

    .flow-steps::before {
        content: "";
        position: absolute;
        top: 60px;
        left: 12%;
        right: 12%;
        height: 2px;
        border-top: 2px dashed var(--color-border);
        z-index: 0;
    }

    .flow-step {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 32px 24px 28px;
        text-align: center;
        position: relative;
        z-index: 1;
        transition: background 0.3s ease, border-color 0.3s ease;
    }

    .flow-step:hover {
        background: var(--color-bg-card-hover);
        border-color: rgba(255, 92, 0, 0.3);
    }

    .flow-step .step-num {
        font-size: 64px;
        font-weight: 900;
        color: var(--color-border);
        line-height: 1;
        display: block;
        margin-bottom: 12px;
        transition: color 0.3s ease;
        font-variant-numeric: tabular-nums;
    }

    .flow-step:hover .step-num {
        color: rgba(255, 92, 0, 0.25);
    }

    .flow-step .step-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: var(--color-primary);
        color: #fff;
        font-size: 20px;
        margin-bottom: 16px;
    }

    .flow-step h3 {
        font-size: 18px;
        font-weight: 700;
        margin: 0 0 8px;
        color: var(--color-text-main);
    }

    .flow-step p {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.65;
        margin: 0;
    }

    /* ===== 活动回顾 + 分页 ===== */
    .review-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-bottom: 32px;
    }

    .review-item {
        display: flex;
        align-items: center;
        gap: 20px;
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 16px 20px;
        transition: background 0.3s ease, border-color 0.3s ease;
    }

    .review-item:hover {
        background: var(--color-bg-card-hover);
        border-color: rgba(255, 92, 0, 0.3);
    }

    .review-thumb {
        width: 160px;
        height: 90px;
        flex-shrink: 0;
        border-radius: 8px;
        overflow: hidden;
    }

    .review-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }

    .review-item:hover .review-thumb img {
        transform: scale(1.03);
    }

    .review-info {
        flex: 1;
        min-width: 0;
    }

    .review-info h3 {
        font-size: 18px;
        font-weight: 700;
        margin: 0 0 6px;
        color: var(--color-text-main);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        transition: color 0.25s ease;
    }

    .review-item:hover .review-info h3 {
        color: var(--color-primary);
    }

    .review-date {
        font-size: 13px;
        color: var(--color-text-muted);
        font-variant-numeric: tabular-nums;
    }

    .empty-state {
        background: rgba(27, 30, 38, 0.5);
        border: 1px dashed var(--color-border);
        border-radius: var(--radius-card);
        padding: 48px 24px;
        text-align: center;
        font-size: 14px;
        color: var(--color-text-muted);
    }

    .custom-pagination {
        display: flex;
        justify-content: center;
        gap: 6px;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .custom-pagination li {
        margin: 0;
    }

    .custom-pagination li a,
    .custom-pagination li span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 40px;
        height: 40px;
        padding: 0 12px;
        border-radius: var(--radius-btn);
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        color: var(--color-text-main);
        font-size: 14px;
        font-weight: 600;
        transition: all 0.25s ease;
        text-decoration: none;
        font-variant-numeric: tabular-nums;
    }

    .custom-pagination li a:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
        background: rgba(255, 92, 0, 0.08);
    }

    .custom-pagination li.current span {
        background: var(--color-primary);
        border-color: var(--color-primary);
        color: #fff;
    }

    .custom-pagination li.arrow a {
        font-size: 16px;
    }

    .custom-pagination li.disabled span {
        opacity: 0.4;
        cursor: not-allowed;
        color: var(--color-text-muted);
    }

    /* ===== FAQ ===== */
    .faq-layout {
        display: grid;
        grid-template-columns: 1fr 380px;
        gap: 32px;
        align-items: start;
    }

    .accordion {
        margin: 0;
        padding: 0;
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .accordion-item {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        overflow: hidden;
        transition: background 0.3s ease, border-color 0.3s ease;
    }

    .accordion-item.is-active {
        border-color: rgba(255, 92, 0, 0.35);
        background: var(--color-bg-card-hover);
    }

    .accordion-title {
        display: flex;
        align-items: center;
        padding: 20px 24px;
        font-size: 16px;
        font-weight: 700;
        color: var(--color-text-main);
        position: relative;
        cursor: pointer;
        transition: color 0.25s ease;
        border-left: 4px solid var(--color-primary);
    }

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

    .accordion-title::after {
        content: "\f078";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        margin-left: auto;
        font-size: 14px;
        color: var(--color-text-muted);
        transition: transform 0.3s ease, color 0.3s ease;
    }

    .accordion-item.is-active .accordion-title::after {
        transform: rotate(180deg);
        color: var(--color-primary);
    }

    .accordion-content {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        padding: 0 24px;
        font-size: 14px;
        line-height: 1.75;
        color: var(--color-text-secondary);
    }

    .faq-aside {
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 32px 28px;
        position: sticky;
        top: 140px;
        text-align: center;
    }

    .faq-aside .aside-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: rgba(0, 229, 160, 0.12);
        color: var(--color-secondary);
        font-size: 22px;
        margin-bottom: 20px;
    }

    .faq-aside h3 {
        font-size: 20px;
        font-weight: 800;
        margin: 0 0 12px;
        color: var(--color-text-main);
    }

    .faq-aside p {
        font-size: 14px;
        color: var(--color-text-secondary);
        margin: 0 0 24px;
        line-height: 1.7;
    }

    .faq-aside .btn {
        width: 100%;
    }

    /* ===== 分类切换 + CTA ===== */
    .channel-switch {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
        padding: 24px 0;
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
        margin-bottom: 56px;
    }

    .channel-switch span {
        font-size: 14px;
        color: var(--color-text-muted);
    }

    .channel-switch a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 18px;
        border-radius: 30px;
        border: 1px solid var(--color-border);
        font-size: 14px;
        font-weight: 600;
        color: var(--color-text-secondary);
        transition: all 0.25s ease;
    }

    .channel-switch a:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
        background: rgba(255, 92, 0, 0.06);
    }

    .cta-section {
        background: var(--color-bg-section);
        position: relative;
        overflow: hidden;
        padding: 80px 0;
    }

    .cta-section::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 50%;
        width: 640px;
        height: 640px;
        transform: translate(-50%, -50%);
        background: radial-gradient(circle, rgba(255, 92, 0, 0.15) 0%, transparent 65%);
        pointer-events: none;
    }

    .cta-card {
        max-width: 640px;
        margin: 0 auto;
        background: var(--color-bg-card);
        border: 1px solid var(--color-border);
        border-radius: 16px;
        padding: 48px 40px;
        text-align: center;
        position: relative;
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    }

    .cta-card h2 {
        font-size: 28px;
        font-weight: 800;
        margin: 0 0 12px;
        color: var(--color-text-main);
    }

    .cta-card p {
        font-size: 15px;
        color: var(--color-text-secondary);
        margin: 0 0 32px;
    }

    .cta-form {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .cta-form input {
        flex: 1;
        min-width: 180px;
        height: 48px;
        background: var(--color-bg-page);
        border: 1px solid #3A4150;
        border-radius: var(--radius-btn);
        padding: 0 16px;
        font-size: 15px;
        color: var(--color-text-main);
        outline: none;
        transition: border-color 0.25s ease, box-shadow 0.25s ease;
        margin: 0;
        box-shadow: none;
    }

    .cta-form input::placeholder {
        color: var(--color-text-muted);
    }

    .cta-form input:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
    }

    .cta-form .btn {
        flex-shrink: 0;
        height: 48px;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: #0A0B0E;
        border-top: 1px solid var(--color-border);
    }

    .site-footer .container {
        padding-top: 48px;
        padding-bottom: 24px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 40px;
        margin-bottom: 40px;
    }

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

    .footer-brand p {
        font-size: 14px;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin: 0 0 16px;
    }

    .footer-domain {
        font-size: 13px;
        color: var(--color-text-muted);
        font-variant-numeric: tabular-nums;
    }

    .footer-links h5,
    .footer-contact h5 {
        font-size: 15px;
        font-weight: 700;
        color: var(--color-text-main);
        margin: 0 0 16px;
    }

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

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

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

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

    .footer-contact p {
        font-size: 14px;
        color: var(--color-text-secondary);
        margin: 0 0 16px;
        line-height: 1.7;
    }

    .social-icons {
        display: flex;
        gap: 10px;
    }

    .social-icons a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        border: 1px solid var(--color-border);
        color: var(--color-text-secondary);
        transition: all 0.25s ease;
    }

    .social-icons a:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
        background: rgba(255, 92, 0, 0.08);
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        border-top: 1px solid rgba(42, 47, 58, 0.6);
        padding-top: 24px;
        font-size: 14px;
        color: var(--color-text-muted);
    }

    .footer-bottom p {
        margin: 0;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }

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

        .flow-steps::before {
            display: none;
        }

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

    @media (max-width: 768px) {
        :root {
            --space-section: var(--space-section-mobile);
        }

        .section-head h2 {
            font-size: 26px;
        }

        .brand-actions {
            display: none;
        }

        .mobile-toggle {
            display: flex;
        }

        .channel-nav {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--color-bg-page);
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
        }

        .channel-nav.open {
            display: block;
        }

        .channel-nav .container {
            flex-direction: column;
            align-items: stretch;
            height: auto;
            padding: 12px 24px;
        }

        .channel-nav a {
            height: 44px;
            border-bottom: none;
            border-left: 3px solid transparent;
            padding: 0 16px;
        }

        .channel-nav a.active {
            border-left-color: var(--color-primary);
            background: rgba(255, 92, 0, 0.08);
        }

        .page-hero {
            padding: 64px 0 48px;
        }

        .page-hero h1 {
            font-size: 32px;
        }

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

        .hero-actions {
            flex-direction: column;
            align-items: center;
        }

        .hero-actions .btn {
            width: 100%;
            max-width: 280px;
        }

        .featured-event-grid {
            grid-template-columns: 1fr;
        }

        .featured-event-card {
            min-height: 320px;
        }

        .featured-event-card h3 {
            font-size: 22px;
        }

        .mini-card-grid {
            grid-template-columns: 1fr;
        }

        .mini-card img {
            width: 90px;
            height: 70px;
        }

        .faq-layout {
            grid-template-columns: 1fr;
        }

        .faq-aside {
            position: static;
        }

        .cta-card {
            padding: 32px 24px;
        }

        .cta-form {
            flex-direction: column;
        }

        .cta-form input {
            width: 100%;
            min-width: 0;
        }

        .cta-form .btn {
            width: 100%;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .footer-bottom {
            flex-direction: column;
            gap: 8px;
            text-align: center;
        }

        .review-item {
            flex-direction: column;
            align-items: flex-start;
        }

        .review-thumb {
            width: 100%;
            height: 140px;
        }

        .custom-pagination li a,
        .custom-pagination li span {
            min-width: 36px;
            height: 36px;
            padding: 0 8px;
            font-size: 13px;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }

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

        .flow-steps {
            grid-template-columns: 1fr;
        }

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

        .page-hero h1 {
            font-size: 28px;
        }

        .featured-event-card .card-body {
            padding: 20px;
        }

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

        .mini-card img {
            width: 100%;
            height: 140px;
        }
    }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #FF5C00;
            --primary-hover: #E05200;
            --primary-transparent: rgba(255, 92, 0, 0.12);
            --accent: #00E5A0;
            --warning: #FF4D4F;
            --info: #FFB800;
            --bg-page: #0C0E12;
            --bg-section: #14161C;
            --bg-card: #1B1E26;
            --bg-card-hover: #20242E;
            --border: #2A2F3A;
            --border-light: #3A4150;
            --text-main: #F0F2F5;
            --text-second: #9AA3AF;
            --text-weak: #5C6470;
            --radius-btn: 8px;
            --radius-card: 12px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 32px rgba(255, 92, 0, 0.12);
            --spacing-section: 88px;
            --spacing-mobile: 56px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg-page);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; display: block; }
        a { color: var(--text-main); text-decoration: underline; text-underline-offset: 3px; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease; }
        a:hover { color: var(--primary); }
        ul, ol { list-style: none; }
        button, input { font-family: inherit; }
        input::placeholder { color: var(--text-weak); }

        /* 组件内移除下划线 */
        .channel-nav a, .brand, .btn, .card-meta .arrow, .footer-links a,
        .switch-links a, .social-icons a, .pagination a, .guide-card .btn,
        .hero-actions .btn, .faq-section .accordion-title, .course-card a {
            text-decoration: none;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 板块 ========== */
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        .section-alt { background: var(--bg-section); }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-head .section-bar {
            display: block;
            width: 32px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-second);
            line-height: 1.75;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            cursor: pointer;
            line-height: 1;
            transition: all 0.25s ease;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff !important;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(255, 92, 0, 0.3);
            color: #fff !important;
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-primary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-transparent);
            transform: translateY(-1px);
            color: var(--primary);
        }
        .btn-secondary:active { transform: translateY(0); }
        .btn-ghost {
            background: transparent;
            border-color: var(--border-light);
            color: var(--text-main);
        }
        .btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 229, 160, 0.06);
        }
        .btn-sm { padding: 10px 20px; font-size: 14px; }
        .btn[disabled] {
            background: #262B35;
            color: var(--text-weak);
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }
        .btn i { font-size: 14px; }

        /* ========== 站点导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(12, 14, 18, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            border-bottom: 1px solid var(--border);
        }

        .brand-row {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            box-shadow: 0 4px 16px rgba(255, 92, 0, 0.3);
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .brand-domain {
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: 0.4px;
        }

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

        .search-toggle {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--border);
            color: var(--text-second);
            background: transparent;
            transition: all 0.25s;
            text-decoration: none;
        }
        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            transition: border-color 0.25s;
        }
        .hamburger:hover { border-color: var(--primary); }
        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .hamburger.open span:nth-child(2) { opacity: 0; }
        .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 48px;
            padding: 0 24px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 0 20px;
            height: 36px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-second);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .channel-nav a:hover {
            color: var(--text-main);
            background: rgba(255, 92, 0, 0.08);
        }
        .channel-nav a.active {
            color: #fff;
            background: rgba(255, 92, 0, 0.16);
            box-shadow: inset 0 0 0 1px rgba(255, 92, 0, 0.4);
        }

        /* ========== Hero（分类页顶部） ========== */
        .hero-category {
            position: relative;
            padding: 72px 0 0;
            overflow: hidden;
            background: var(--bg-page);
        }
        .hero-category .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.4;
            z-index: 0;
        }
        .hero-category .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(12, 14, 18, 0.95) 0%, rgba(12, 14, 18, 0.72) 55%, rgba(12, 14, 18, 0.4) 100%);
        }
        .hero-decor {
            position: absolute;
            right: -80px;
            top: 40%;
            width: 340px;
            height: 340px;
            border: 2px solid rgba(255, 92, 0, 0.15);
            transform: rotate(45deg);
            z-index: 1;
            pointer-events: none;
        }
        .hero-decor::before {
            content: '';
            position: absolute;
            inset: 14px;
            border: 1px dashed rgba(255, 92, 0, 0.25);
        }

        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 720px;
            padding: 32px 0 32px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--accent);
            border: 1px solid rgba(0, 229, 160, 0.4);
            background: rgba(0, 229, 160, 0.08);
            border-radius: 4px;
            transform: rotate(-2deg);
        }
        .hero-badge::before {
            content: '◆';
            font-size: 9px;
            color: var(--accent);
        }
        .hero-category h1 {
            margin: 24px 0 16px;
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: 0.5px;
        }
        .hero-sub {
            font-size: 17px;
            color: var(--text-second);
            max-width: 580px;
            line-height: 1.75;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 32px;
        }

        .hero-stats {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            margin-top: 40px;
            padding: 20px 32px;
            background: var(--bg-section);
            border: 1px solid var(--border);
            border-radius: 8px;
            box-shadow: var(--shadow-card);
            transform: rotate(-0.3deg);
        }
        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            flex: 1;
            text-align: center;
        }
        .stat-item strong {
            font-size: 32px;
            font-weight: 900;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .stat-item span {
            font-size: 13px;
            color: var(--text-second);
            white-space: nowrap;
        }

        /* ========== 课程卡片网格 ========== */
        .course-grid-row {
            margin-top: 8px;
        }
        .course-grid-row .grid-x > .cell {
            margin-bottom: 12px;
        }

        .course-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            box-shadow: var(--shadow-card);
        }
        .course-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255, 92, 0, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .cover-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-section);
        }
        .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .course-card:hover .cover-wrap img { transform: scale(1.03); }

        .badge-level {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 4px;
            background: rgba(12, 14, 18, 0.9);
            color: var(--accent);
            border: 1px solid rgba(0, 229, 160, 0.5);
            transform: rotate(-3deg);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
            letter-spacing: 0.5px;
        }
        .badge-level.mid {
            color: var(--info);
            border-color: rgba(255, 184, 0, 0.5);
        }
        .badge-level.high {
            color: var(--warning);
            border-color: rgba(255, 77, 79, 0.5);
        }

        .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.25s;
        }
        .course-card:hover .card-body h3 { color: var(--primary); }
        .card-body p {
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-weak);
            margin-top: auto;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .card-meta i { color: var(--primary); font-size: 12px; margin-right: 4px; }
        .card-meta .arrow {
            margin-left: auto;
            color: var(--text-second);
            font-size: 14px;
            transition: color 0.25s, transform 0.25s;
        }
        .course-card:hover .card-meta .arrow {
            color: var(--primary);
            transform: translateX(4px);
        }

        /* ========== 分页 ========== */
        .pagination-row {
            margin-top: 40px;
            display: flex;
            justify-content: center;
        }
        ul.pagination {
            display: flex;
            gap: 8px;
            margin: 0;
            list-style: none;
        }
        ul.pagination li a,
        ul.pagination li button {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: var(--bg-card);
            color: var(--text-second);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s;
        }
        ul.pagination li a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 92, 0, 0.08);
        }
        ul.pagination li.current a {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        ul.pagination li.current a:hover {
            background: var(--primary-hover);
            color: #fff;
        }
        ul.pagination li.disabled a {
            opacity: 0.4;
            pointer-events: none;
            background: var(--bg-section);
        }

        /* ========== 上手流程 ========== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .flow-step {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
        }
        .flow-step:hover {
            border-color: rgba(255, 92, 0, 0.4);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            font-size: 48px;
            font-weight: 900;
            color: #262B35;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            display: block;
            margin-bottom: 24px;
            transition: color 0.3s;
        }
        .flow-step:hover .step-num { color: rgba(255, 92, 0, 0.25); }
        .flow-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .flow-step p {
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .step-arrow {
            position: absolute;
            right: 20px;
            bottom: 20px;
            color: var(--primary);
            opacity: 0;
            transform: translateX(-8px);
            transition: all 0.3s;
            font-size: 14px;
        }
        .flow-step:hover .step-arrow {
            opacity: 1;
            transform: translateX(0);
        }
        .flow-step:last-child .step-arrow { display: none; }

        /* ========== 优势区 ========== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .advantage-item {
            text-align: center;
            padding: 40px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
        }
        .advantage-item:hover {
            border-color: rgba(255, 92, 0, 0.4);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-hover);
        }
        .advantage-item .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            border-radius: 12px;
            background: var(--primary-transparent);
            border: 1px dashed rgba(255, 92, 0, 0.35);
            transform: rotate(-4deg);
            transition: transform 0.3s;
        }
        .advantage-item:hover .icon { transform: rotate(0deg) scale(1.05); }
        .advantage-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .advantage-item p {
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== FAQ ========== */
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 48px;
            align-items: start;
        }

        ul.accordion {
            background: transparent;
            border: none;
            margin: 0;
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .accordion-item.is-active {
            border-color: rgba(255, 92, 0, 0.35);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .accordion-title {
            position: relative;
            display: block;
            padding: 18px 52px 18px 28px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.5;
            background: transparent;
            border: none;
        }
        .accordion-title:hover,
        .accordion-title:focus {
            background: transparent;
            color: var(--text-main);
        }
        .accordion-title::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 16px;
            background: var(--primary);
            border-radius: 2px;
        }
        .accordion-title::after {
            content: '+' !important;
            position: absolute;
            top: 50%;
            right: 20px;
            left: auto;
            color: var(--text-second);
            font-size: 22px;
            font-weight: 400;
            background: none;
            border: none;
            transform: translateY(-50%);
            width: auto;
            height: auto;
        }
        .accordion-item.is-active .accordion-title::after {
            content: '−' !important;
            color: var(--primary);
        }
        .accordion-content {
            padding: 0 20px 20px 28px;
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.75;
            border-top: 1px solid var(--border);
            background: transparent;
        }
        .accordion-content p { margin-bottom: 0; }

        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            position: sticky;
            top: 140px;
        }
        .guide-card h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-second);
            margin-bottom: 20px;
            line-height: 1.75;
        }
        .guide-card .btn { width: 100%; }
        .contact-line {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .contact-line i { color: var(--accent); }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            padding: var(--spacing-section) 0;
            background:
                linear-gradient(rgba(12, 14, 18, 0.9), rgba(12, 14, 18, 0.94)),
                url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 520px;
            height: 520px;
            background: radial-gradient(circle, rgba(255, 92, 0, 0.18), transparent 65%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-inner h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .cta-inner > p {
            font-size: 15px;
            color: var(--text-second);
            margin-bottom: 32px;
        }
        .cta-form {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            box-shadow: var(--shadow-card);
            text-align: left;
        }
        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .cta-form input {
            width: 100%;
            height: 48px;
            padding: 0 16px;
            background: var(--bg-section);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            color: var(--text-main);
            font-size: 15px;
            transition: border-color 0.25s, box-shadow 0.25s;
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 92, 0, 0.15);
        }
        .cta-form .btn {
            height: 48px;
            width: 100%;
        }
        .code-input {
            position: relative;
        }
        .code-input input { padding-right: 88px; }
        .btn-code {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            height: 36px;
            padding: 0 12px;
            background: var(--bg-section);
            border: 1px solid var(--border-light);
            border-radius: 6px;
            color: var(--text-main);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
        }
        .btn-code:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-code:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .form-hint {
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
            margin: 0;
        }
        .cta-proof {
            margin-top: 20px;
            font-size: 14px;
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== 分类切换条 ========== */
        .category-switch {
            background: var(--bg-section);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .category-switch .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .switch-label {
            font-size: 14px;
            color: var(--text-second);
            font-weight: 600;
        }
        .switch-links {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .switch-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            color: var(--text-second);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s;
            background: var(--bg-card);
        }
        .switch-links a:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            background: rgba(255, 92, 0, 0.06);
        }
        .switch-links a i { color: var(--primary); font-size: 13px; }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A0B0E;
            border-top: 1px solid var(--border);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 320px;
        }
        .footer-domain {
            font-size: 13px;
            color: var(--text-weak);
        }
        .footer-links h5,
        .footer-contact h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul a {
            font-size: 14px;
            color: var(--text-second);
            transition: color 0.25s, padding-left 0.25s;
        }
        .footer-links ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: var(--text-second);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .social-icons {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .social-icons a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--border);
            color: var(--text-second);
            transition: all 0.25s;
        }
        .social-icons a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .section { padding: 64px 0; }
            .flow-grid { grid-template-columns: repeat(2, 1fr); }
            .advantage-grid { grid-template-columns: repeat(2, 1fr); }
            .faq-layout { grid-template-columns: 1fr; }
            .guide-card { position: static; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }

        @media (max-width: 768px) {
            .section { padding: var(--spacing-mobile) 0; }
            .brand-actions .search-toggle,
            .brand-actions .btn { display: none; }
            .hamburger { display: flex; }
            .channel-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-page);
                flex-direction: column;
                align-items: stretch;
                height: auto;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
                max-width: 100%;
            }
            .channel-nav.open { display: flex; }
            .channel-nav a {
                padding: 12px 16px;
                height: auto;
                border-radius: 8px;
                font-size: 15px;
            }
            .channel-nav a.active { background: rgba(255, 92, 0, 0.16); }

            .hero-category { padding-top: 48px; }
            .hero-category h1 { font-size: 32px; }
            .hero-sub { font-size: 16px; }
            .hero-decor { display: none; }
            .hero-stats {
                flex-wrap: wrap;
                padding: 16px;
                gap: 12px;
            }
            .stat-item { min-width: 40%; }
            .stat-item strong { font-size: 26px; }
            .flow-grid { grid-template-columns: 1fr; }
            .advantage-grid { grid-template-columns: 1fr 1fr; }
            .cta-form .form-row { grid-template-columns: 1fr; }
            .category-switch .container { flex-direction: column; align-items: flex-start; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .brand-name { font-size: 16px; }
            .brand-logo { width: 36px; height: 36px; font-size: 18px; }
            .brand-row { height: 64px; }
            .channel-nav { top: 64px; }
            .hero-category h1 { font-size: 28px; }
            .hero-actions .btn { width: 100%; }
            .section-head h2 { font-size: 26px; }
            .card-body { padding: 16px; }
            .card-body h3 { font-size: 18px; }
            .advantage-grid { grid-template-columns: 1fr; }
            .cta-form { padding: 20px; }
            .cta-inner h2 { font-size: 26px; }
            ul.pagination li a,
            ul.pagination li button { min-width: 36px; height: 36px; padding: 0 10px; }
        }