/* roulang page: index */
/* ========== CSS 设计变量 ========== */
        :root {
            --bg-page: #0A0E1A;
            --bg-alt: #0D1526;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.08);
            --primary: #3B82F6;
            --primary-hover: #2563EB;
            --primary-glow: #60A5FA;
            --accent: #00E5A0;
            --warm: #FFB800;
            --text-main: #E5E7EB;
            --text-sub: #9CA3AF;
            --text-muted: #6B7280;
            --pixel-border: #1E3A5F;
            --input-bg: #0D1526;
            --divider: rgba(255, 255, 255, 0.08);
            --font-pixel: 'Courier New', 'Lucida Console', monospace;
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --radius-card: 4px;
            --radius-sm: 2px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.5);
            --glow-primary: 0 0 16px rgba(59, 130, 246, 0.5);
            --glow-primary-hover: 0 0 24px rgba(59, 130, 246, 0.8);
            --glow-accent: 0 0 8px rgba(0, 229, 160, 0.4);
            --spacing-section: 90px;
            --spacing-section-mobile: 56px;
            --container-max: 1200px;
            --sidebar-width: 240px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
            background-image:
                linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
            background-size: 24px 24px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

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

        /* ========== 左侧导航栏 (桌面端) ========== */
        .app-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: rgba(10, 14, 26, 0.95);
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 24px 0;
            transition: transform 0.25s ease-out;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 24px;
            margin-bottom: 32px;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-pixel);
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--accent);
        }

        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 12px;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 14px;
            height: 44px;
            border-radius: 4px;
            color: var(--text-sub);
            font-size: 14px;
            transition: all 0.2s ease;
            position: relative;
            border: 1px solid transparent;
        }

        .nav-item svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.5;
        }

        .nav-item:hover {
            background: rgba(59, 130, 246, 0.06);
            color: var(--primary);
            border-color: rgba(59, 130, 246, 0.1);
        }

        .nav-item.active {
            background: rgba(59, 130, 246, 0.1);
            color: var(--text-main);
            border-left: 3px solid var(--primary);
            border-radius: 0;
            background: rgba(59, 130, 246, 0.1);
            color: var(--text-main);
            border-left: 3px solid var(--primary);
            border-radius: 0;
        }
        
        .nav-item.active svg {
            color: var(--primary);
        }

        .sidebar-bottom {
            padding: 20px 24px 12px;
            border-top: 1px solid var(--divider);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(0, 229, 160, 0.4);
            animation: pulse 1.2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.3;
                transform: scale(0.7);
            }
        }

        /* 像素装饰方块 */
        .pixel-dot {
            width: 4px;
            height: 4px;
            background: var(--primary);
            display: inline-block;
            margin-right: 2px;
        }

        /* ========== 主内容区 ========== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== Hero 首屏 ========== */
        .hero {
            position: relative;
            padding: 90px 0 60px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            right: -60px;
            bottom: -60px;
            background: linear-gradient(135deg, transparent 50%, rgba(59, 130, 246, 0.15) 50%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-title {
            font-family: var(--font-pixel);
            font-size: 38px;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero-title .highlight {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 480px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            font-size: 15px;
            border-radius: 4px;
            cursor: pointer;
            border: none;
            transition: all 0.2s ease;
            font-weight: 500;
        }

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

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

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

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

        .btn-ghost {
            background: transparent;
            border: 1px solid var(--pixel-border);
            color: var(--text-sub);
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 0 12px rgba(59, 130, 246, 0.2);
        }

        .hero-visual {
            position: relative;
        }

        .hero-img-wrapper {
            position: relative;
            border: 2px solid var(--pixel-border);
            outline: 1px solid rgba(59, 130, 246, 0.4);
            outline-offset: 4px;
            border-radius: 4px;
            overflow: hidden;
        }

        .hero-img-wrapper img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            display: block;
        }

        .hero-tag {
            position: absolute;
            bottom: -14px;
            left: 16px;
            background: var(--bg-alt);
            border: 1px solid var(--primary);
            padding: 4px 12px;
            font-size: 12px;
            font-family: var(--font-pixel);
            color: var(--accent);
            z-index: 2;
        }

        .hero-divider {
            display: flex;
            gap: 4px;
            margin-top: 60px;
        }

        .hero-divider .box {
            width: 24px;
            height: 2px;
            background: var(--primary);
        }

        .hero-divider .box.accent {
            background: var(--accent);
        }

        /* ========== 指标看板 ========== */
        .stats-section {
            padding: var(--spacing-section) 0;
        }

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

        .section-header .tag {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid var(--pixel-border);
            font-size: 12px;
            color: var(--accent);
            font-family: var(--font-pixel);
            margin-bottom: 16px;
            border-radius: 2px;
        }

        .section-header h2 {
            font-family: var(--font-pixel);
            font-size: 30px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 640px;
        }

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

        .stat-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(59, 130, 246, 0.4);
        }

        .stat-card .stat-icon {
            width: 32px;
            height: 32px;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .stat-card .stat-num {
            font-family: var(--font-pixel);
            font-size: 36px;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-card .stat-name {
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 12px;
        }

        .stat-progress {
            height: 3px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 2px;
            overflow: hidden;
        }

        .stat-progress .bar {
            height: 100%;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .stat-card:hover .stat-progress .bar {
            background: var(--accent);
            box-shadow: 0 0 8px rgba(0, 229, 160, 0.4);
        }

        /* ========== 服务矩阵 ========== */
        .services-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-alt);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            min-height: 200px;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-card::before,
        .service-card::after {
            content: '';
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(59, 130, 246, 0.5);
        }

        .service-card::before {
            top: 8px;
            right: 8px;
        }

        .service-card::after {
            bottom: 8px;
            left: 8px;
            background: rgba(0, 229, 160, 0.5);
        }

        .service-card .corner-tl {
            position: absolute;
            top: 8px;
            left: 8px;
            width: 4px;
            height: 4px;
            background: rgba(0, 229, 160, 0.5);
        }

        .service-card .corner-br {
            position: absolute;
            bottom: 8px;
            right: 8px;
            width: 4px;
            height: 4px;
            background: rgba(59, 130, 246, 0.5);
        }

        .service-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(59, 130, 246, 0.4);
        }

        .service-card .service-icon {
            width: 48px;
            height: 32px;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            border: 2px solid rgba(59, 130, 246, 0.3);
            border-radius: 2px;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .service-card .service-icon svg {
            width: 24px;
            height: 24px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--primary);
            transition: all 0.2s ease;
        }

        .service-link .arrow {
            font-family: var(--font-pixel);
            transition: transform 0.2s ease;
        }

        .service-link:hover .arrow {
            transform: translateX(2px);
            color: var(--accent);
        }

        /* ========== 结果对比 ========== */
        .compare-section {
            padding: var(--spacing-section) 0;
            position: relative;
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 24px;
            align-items: center;
        }

        .vs-badge {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--bg-page);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-pixel);
            font-weight: 700;
            font-size: 18px;
            border-radius: 4px;
            box-shadow: var(--glow-primary);
            z-index: 2;
        }

        .compare-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px;
            position: relative;
            transition: all 0.2s ease;
        }

        .compare-card.traditional {
            border-left: 3px solid var(--warm);
        }

        .compare-card.platform {
            border-left: 3px solid var(--accent);
        }

        .compare-card .compare-icon {
            width: 32px;
            height: 32px;
            margin-bottom: 16px;
        }

        .compare-card h3 {
            font-size: 18px;
            margin-bottom: 20px;
        }

        .compare-card ul {
            list-style: none;
            padding: 0;
        }

        .compare-card li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .compare-card li::before {
            content: '';
            width: 6px;
            height: 6px;
            flex-shrink: 0;
            margin-top: 7px;
        }

        .compare-card.traditional li::before {
            background: var(--warm);
        }

        .compare-card.platform li::before {
            background: var(--accent);
        }

        .platform .recommend-badge {
            display: inline-block;
            margin-top: 8px;
            background: var(--accent);
            color: var(--bg-page);
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 2px;
            font-weight: 600;
        }

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

        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(59, 130, 246, 0.4);
        }

        .faq-item.open {
            background: rgba(59, 130, 246, 0.04);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            user-select: none;
        }

        .faq-q-icon {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(59, 130, 246, 0.2);
            border-radius: 2px;
            font-size: 13px;
            color: var(--primary);
            flex-shrink: 0;
            font-family: var(--font-pixel);
        }

        .faq-question h3 {
            flex: 1;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
        }

        .faq-toggle {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
        }

        .faq-toggle::before,
        .faq-toggle::after {
            content: '';
            position: absolute;
            background: var(--primary);
            transition: all 0.3s ease;
        }

        .faq-toggle::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }

        .faq-toggle::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
        }

        .faq-item.open .faq-toggle::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 20px 52px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ========== 转化表单 ========== */
        .conversion-section {
            padding: var(--spacing-section) 0;
            position: relative;
            background: var(--bg-page);
        }

        .conversion-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }

        .contact-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px;
        }

        .contact-card h3 {
            font-size: 20px;
            margin-bottom: 24px;
        }

        .contact-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .contact-row svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .form-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 32px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: var(--text-sub);
            margin-bottom: 8px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            height: 44px;
            background: var(--input-bg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            padding: 0 16px;
            color: var(--text-main);
            outline: none;
            transition: all 0.2s ease;
        }

        .form-group textarea {
            height: 100px;
            padding: 12px 16px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
        }

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

        .form-submit {
            width: 100%;
            margin-top: 8px;
        }

        /* ========== 页脚 ========== */
        .footer {
            background: #080C16;
            padding-top: 0;
            margin-top: 0;
        }

        .footer-divider {
            display: flex;
            gap: 4px;
            height: 2px;
        }

        .footer-divider .box {
            flex: 1;
            background: var(--primary);
        }

        .footer-divider .box.accent {
            background: var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 48px;
            padding: 56px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .footer-col h4 {
            font-size: 15px;
            margin-bottom: 20px;
            color: var(--text-main);
        }

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

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

        .footer-col a {
            color: var(--text-sub);
            font-size: 13px;
            transition: all 0.2s ease;
        }

        .footer-col a:hover {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
        }

        .footer-mid {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 24px;
            border-top: 1px solid var(--divider);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .footer-mid .logo-text {
            font-size: 14px;
        }

        .footer-mid .slogan {
            font-size: 12px;
            color: var(--text-muted);
            margin-left: 16px;
        }

        .footer-copyright {
            text-align: center;
            padding: 20px 24px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        /* ========== 移动端导航 ========== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(10, 14, 26, 0.95);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
        }

        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .mobile-menu-btn span {
            width: 16px;
            height: 2px;
            background: var(--text-main);
            display: block;
            transition: all 0.3s ease;
        }

        .mobile-logo {
            flex: 1;
            text-align: center;
            font-family: var(--font-pixel);
            font-size: 14px;
            color: var(--text-main);
        }

        .mobile-cta {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-cta a {
            width: 28px;
            height: 28px;
            border-radius: 4px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .mobile-cta svg {
            width: 14px;
            height: 14px;
            color: #fff;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1002;
            opacity: 0;
            transition: opacity 0.25s ease-out;
        }

        .drawer-overlay.active {
            opacity: 1;
        }

        .drawer {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: var(--bg-page);
            z-index: 1003;
            transition: left 0.25s ease-out;
            padding: 24px 0;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }

        .drawer.open {
            left: 0;
        }

        .drawer .sidebar-nav {
            padding: 0 16px;
        }

        /* ========== 像素动效 ========== */
        .pixel-bg-decor {
            position: absolute;
            width: 80px;
            height: 80px;
            pointer-events: none;
        }

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

            .app-sidebar {
                padding: 16px 0;
            }

            .sidebar-logo {
                padding: 0;
                justify-content: center;
                margin-bottom: 20px;
            }

            .logo-text {
                display: none;
            }

            .sidebar-nav {
                padding: 0 8px;
            }

            .nav-item {
                justify-content: center;
                padding: 0;
            }

            .nav-item span {
                display: none;
            }

            .nav-item.active {
                border-left: none;
                border-left: none;
                border-radius: 4px;
            }

            .nav-item.active svg {
                color: var(--primary);
            }

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

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

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }

            .app-sidebar {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }

            .container {
                padding: 0 16px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero {
                padding: 56px 0 40px;
            }

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

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

            .btn {
                width: 100%;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-card {
                padding: 16px;
            }

            .stat-card .stat-num {
                font-size: 28px;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .vs-badge {
                margin: 0 auto;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 40px 16px;
            }

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

            .footer-mid .slogan {
                margin-left: 0;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 22px;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .stat-card .stat-num {
                font-size: 22px;
            }

            .service-card {
                padding: 20px;
            }

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

            .faq-answer-inner {
                padding: 0 16px 16px 44px;
            }

            .form-card,
            .contact-card {
                padding: 20px;
            }
        }

/* roulang page: category1 */
:root{
  --bg:#0A0E1A;
  --bg2:#0D1526;
  --glass:rgba(255,255,255,0.05);
  --glass-border:rgba(255,255,255,0.08);
  --primary:#3B82F6;
  --primary-hover:#2563EB;
  --primary-glow:#60A5FA;
  --accent:#00E5A0;
  --warm:#FFB800;
  --text:#E5E7EB;
  --text-secondary:#9CA3AF;
  --text-aux:#6B7280;
  --pixel-border:#1E3A5F;
  --input-bg:#0D1526;
  --divider:rgba(255,255,255,0.08);
  --radius:4px;
  --shadow:0 4px 24px rgba(0,0,0,0.4);
  --shadow-hover:0 8px 32px rgba(0,0,0,0.5);
  --font-pixel:'Zpix','Fusion Pixel','Courier New','SimSun',monospace;
  --font-body:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  --transition:0.2s ease;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:
    repeating-linear-gradient(0deg, rgba(59,130,246,0.035) 0px, transparent 1px, transparent 24px),
    repeating-linear-gradient(90deg, rgba(59,130,246,0.035) 0px, transparent 1px, transparent 24px),
    var(--bg);
  min-height:100vh;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:9999;
  background:repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0px, transparent 1px, transparent 4px);
}
body.menu-open{overflow:hidden;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--primary-glow);}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
details summary{list-style:none;cursor:pointer;}
details summary::-webkit-details-marker{display:none;}

h1,h2,h3,.pixel-font{
  font-family:var(--font-pixel);
  letter-spacing:1px;
  line-height:1.3;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;border:none;border-radius:var(--radius);
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:all var(--transition);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);color:#fff;
  box-shadow:0 0 16px rgba(59,130,246,0.5);
}
.btn-primary:hover{
  background:#60A5FA;color:#fff;
  box-shadow:0 0 24px rgba(59,130,246,0.8);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;border:1px solid var(--pixel-border);
  color:var(--text-secondary);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--text);}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

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

/* ---------- 侧边栏 ---------- */
.sidebar{
  position:fixed;left:0;top:0;width:240px;height:100vh;
  background:rgba(10,14,26,0.95);
  border-right:1px solid rgba(255,255,255,0.06);
  z-index:1002;
  display:flex;flex-direction:column;
}
.sidebar-brand{
  display:flex;align-items:center;gap:12px;
  padding:22px 20px;
  border-bottom:1px solid var(--divider);
}
.sidebar-brand .logo-mark{flex-shrink:0;}
.brand-name{
  font-family:var(--font-pixel);
  font-size:18px;font-weight:700;color:#fff;
  letter-spacing:1px;
  white-space:nowrap;
}
.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto;}
.nav-item{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 10px;
  color:var(--text-secondary);
  font-size:14px;line-height:1;
  border-radius:var(--radius);
  position:relative;
  transition:all var(--transition);
}
.nav-item svg{width:16px;height:16px;flex-shrink:0;}
.nav-item:hover{background:rgba(59,130,246,0.06);color:var(--primary);}
.nav-item.active{
  background:rgba(59,130,246,0.1);
  color:var(--text);
  font-weight:600;
  box-shadow:inset 3px 0 0 var(--primary);
}
.sidebar-badge{
  display:flex;gap:6px;
  position:absolute;bottom:24px;left:50%;
  transform:translateX(-50%);
}
.sidebar-badge .dot{
  width:8px;height:8px;
  background:var(--primary);
  animation:breathe 1.2s infinite;
}
.sidebar-badge .dot:nth-child(2){background:var(--accent);animation-delay:0.4s;}
.sidebar-badge .dot:nth-child(3){background:var(--primary);animation-delay:0.8s;}
@keyframes breathe{0%,100%{opacity:0.35;}50%{opacity:1;}}

/* ---------- 移动端顶栏 ---------- */
.mobile-topbar{display:none;}
.mobile-brand{
  font-family:var(--font-pixel);
  font-size:16px;font-weight:700;color:#fff;
  letter-spacing:1px;
}
.menu-btn{
  display:inline-flex;flex-direction:column;justify-content:center;gap:4px;
  width:40px;height:40px;padding:0;background:none;border:none;cursor:pointer;
}
.menu-btn-line{
  display:block;width:16px;height:2px;background:var(--text-secondary);
  margin:0 auto;
}
.menu-btn:hover .menu-btn-line{background:var(--primary);}
.mobile-call{
  display:inline-flex;align-items:center;
  height:32px;padding:0 14px;
  background:var(--primary);color:#fff;
  border-radius:var(--radius);
  font-size:13px;font-weight:600;
  box-shadow:0 0 12px rgba(59,130,246,0.4);
}
.menu-overlay{display:none;}
.menu-overlay.visible{display:block;}

/* ---------- 主内容区 ---------- */
.main-content{margin-left:240px;min-height:100vh;}

/* ---------- 分类 Hero ---------- */
.category-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:flex-end;
  background-size:cover;background-position:center;
}
.category-hero::before{
  content:'';
  position:absolute;inset:0;
  background:rgba(10,14,26,0.75);
  z-index:1;
}
.hero-inner{
  position:relative;z-index:2;
  width:100%;max-width:1200px;margin:0 auto;
  padding:44px 24px 36px;
}
.breadcrumb{
  font-size:13px;color:var(--text-aux);
  margin-bottom:14px;
}
.breadcrumb a{color:var(--text-aux);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 8px;color:var(--text-aux);}
.breadcrumb .current{color:var(--text-secondary);}
.category-hero h1{
  font-size:34px;
  color:#fff;
  margin-bottom:12px;
}
.category-hero .hero-desc{
  font-size:14px;color:var(--text-secondary);
  max-width:560px;
  line-height:1.75;
}
.pixel-divider{
  display:flex;gap:4px;
  margin-top:24px;
}
.pixel-divider span{
  width:8px;height:8px;
  background:var(--primary);
  opacity:.6;
}
.pixel-divider span.accent{background:var(--accent);opacity:.7;}
.hero-pixel-art{
  position:absolute;right:24px;bottom:40px;z-index:2;
  opacity:.35;pointer-events:none;
}

/* ---------- 区块标题 ---------- */
.section-head{
  margin-bottom:28px;
}
.section-head .pixel-mark{
  display:inline-flex;gap:5px;
  margin-bottom:10px;
}
.section-head .pixel-mark i{
  width:8px;height:8px;background:var(--primary);
}
.section-head .pixel-mark i:last-child{background:var(--accent);}
.section-head h2{
  font-size:26px;color:var(--text);
  margin-bottom:8px;
}
.section-head p{
  font-size:14px;color:var(--text-secondary);
}
.section{
  padding:64px 0;
}

/* ---------- 标签筛选 ---------- */
.filter-section{
  padding:32px 0 8px;
  background:var(--bg2);
  border-bottom:1px solid var(--divider);
}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
}
.filter-tag{
  height:32px;padding:0 16px;
  background:transparent;
  border:1px solid var(--pixel-border);
  border-radius:2px;
  color:var(--text-secondary);
  font-size:13px;cursor:pointer;
  transition:all var(--transition);
}
.filter-tag:hover{border-color:var(--primary);color:var(--primary);}
.filter-tag.active{
  background:var(--primary);color:#0A0E1A;
  border-color:var(--primary);
  box-shadow:0 0 12px rgba(59,130,246,0.4);
  font-weight:600;
}
.filter-tag:active{transform:translateY(1px);}
.filter-tag:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

/* ---------- 内容列表 ---------- */
.list-section{padding:48px 0 20px;}
.studio-list{max-width:1200px;margin:0 auto;padding:0 24px;}
.studio-card{
  position:relative;
  display:flex;gap:20px;
  margin-bottom:16px;
  padding:16px;
  background:var(--glass);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  transition:all var(--transition);
}
.studio-card::before,
.studio-card::after{
  content:'';width:6px;height:6px;
  position:absolute;opacity:.5;
}
.studio-card::before{
  top:8px;left:8px;background:var(--primary);
}
.studio-card::after{
  bottom:8px;right:8px;background:var(--accent);opacity:.45;
}
.studio-card:hover{
  transform:translateY(-2px);
  border-color:rgba(59,130,246,0.4);
  box-shadow:var(--shadow-hover);
}
.studio-media{
  flex-shrink:0;width:200px;
}
.studio-media img{
  width:100%;height:150px;object-fit:cover;
  border:1px solid rgba(59,130,246,0.35);
  border-radius:2px;
  transition:transform 0.3s ease;
  background:var(--bg2);
}
.studio-card:hover .studio-media img{transform:scale(1.02);}
.studio-body{
  flex:1;display:flex;flex-direction:column;
  padding-left:2px;
}
.studio-meta{
  display:flex;align-items:center;gap:10px;
}
.tag-sm{
  display:inline-flex;align-items:center;
  padding:2px 10px;
  background:rgba(59,130,246,0.2);
  color:#93C5FD;
  font-size:12px;
  border-radius:2px;
}
.studio-location{
  font-size:12px;color:var(--text-aux);
}
.studio-body h3{
  font-size:18px;font-weight:600;
  color:var(--text);
  margin-top:8px;
  font-family:var(--font-body);
  letter-spacing:0;
  transition:color var(--transition);
}
.studio-card:hover .studio-body h3{color:var(--primary-glow);}
.studio-body p{
  font-size:14px;color:var(--text-secondary);
  line-height:1.75;
  margin-top:6px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.studio-bottom{
  display:flex;justify-content:space-between;align-items:center;
  margin-top:auto;padding-top:12px;
}
.studio-info{
  font-size:12px;color:var(--text-aux);
}
.link-more{
  font-size:13px;color:var(--primary);
  display:inline-flex;align-items:center;gap:4px;
}
.link-more .arrow{transition:transform 0.2s ease;}
.link-more:hover .arrow{transform:translateX(3px);color:var(--accent);}

/* ---------- 对比区块 ---------- */
.compare-section{padding:56px 0;background:var(--bg2);}
.compare-wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.compare-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  gap:16px;
  align-items:stretch;
}
.compare-card{
  position:relative;
  padding:24px;
  border-radius:var(--radius);
  background:var(--glass);
  backdrop-filter:blur(12px);
}
.compare-card.old{border:1px solid rgba(255,184,0,0.3);}
.compare-card.new{border:1px solid rgba(0,229,160,0.3);}
.compare-head{
  display:flex;align-items:center;gap:8px;
  font-size:16px;font-weight:600;
  color:var(--text);
  margin-bottom:12px;
  font-family:var(--font-pixel);
  letter-spacing:.5px;
}
.compare-head svg{width:16px;height:16px;flex-shrink:0;}
.compare-card.old .compare-head{color:#FCD34D;}
.compare-card.new .compare-head{color:#6EE7B7;}
.compare-card ul{list-style:none;}
.compare-card li{
  font-size:14px;color:var(--text-secondary);
  padding:4px 0 4px 14px;
  position:relative;
  line-height:1.6;
}
.compare-card li::before{
  content:'';
  width:6px;height:6px;
  background:var(--warm);
  opacity:.85;
  position:absolute;left:0;top:13px;
}
.compare-card.new li::before{background:var(--accent);}
.badge-recommend{
  display:inline-block;
  margin-top:16px;
  padding:3px 10px;
  background:var(--accent);
  color:#0A1A10;
  font-size:12px;font-weight:700;
  border-radius:2px;
  box-shadow:0 0 8px rgba(0,229,160,0.4);
  font-family:var(--font-pixel);
}
.vs-badge{
  width:48px;height:48px;
  border-radius:4px;
  background:var(--primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-pixel);
  font-size:14px;font-weight:700;
  box-shadow:0 0 16px rgba(59,130,246,0.5);
  align-self:center;
}

/* ---------- FAQ ---------- */
.faq-section{padding:56px 0;background:var(--bg);}
.faq-wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  margin-bottom:12px;
  background:var(--glass);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color var(--transition);
}
.faq-item[open]{
  border-color:rgba(59,130,246,0.45);
  background:rgba(59,130,246,0.04);
}
.faq-item summary{
  display:flex;align-items:center;gap:12px;
  padding:16px 20px;
  user-select:none;
}
.faq-q-icon{
  width:22px;height:22px;
  border:1px solid var(--pixel-border);
  border-radius:2px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
  color:var(--primary-glow);
  flex-shrink:0;
}
.faq-item[open] .faq-q-icon{
  border-color:rgba(59,130,246,0.6);
  color:var(--accent);
}
.faq-summary-text{
  flex:1;
  font-size:15px;font-weight:600;
  color:var(--text);
}
.faq-toggle{
  color:var(--text-secondary);
  font-size:18px;
  transition:transform 0.3s ease;
  flex-shrink:0;
}
.faq-item[open] .faq-toggle{transform:rotate(45deg);color:var(--accent);}
.faq-a{
  padding:0 20px 18px 54px;
}
.faq-a p{
  font-size:14px;color:var(--text-secondary);
  line-height:1.75;
}

/* ---------- 底部 CTA ---------- */
.cta-bar{background:var(--bg2);border-top:1px solid var(--divider);}
.cta-inner{
  max-width:1200px;margin:0 auto;padding:40px 24px;
  display:flex;justify-content:space-between;align-items:center;
  gap:24px;flex-wrap:wrap;
}
.cta-inner h3{
  font-size:22px;color:var(--text);
  margin-bottom:6px;
}
.cta-inner p{
  font-size:14px;color:var(--text-secondary);
}
.cta-btn{flex-shrink:0;}

/* ---------- 页脚 ---------- */
.footer{background:#080C16;}
.footer-divider{
  display:flex;gap:4px;
  padding:14px 24px 0;
  max-width:1200px;margin:0 auto;
}
.footer-divider .box{
  width:8px;height:8px;
  background:var(--primary);
  opacity:.55;
}
.footer-divider .box.accent{background:var(--accent);opacity:.65;}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  max-width:1200px;margin:0 auto;
  padding:40px 24px 24px;
}
.footer-col h4{
  font-family:var(--font-pixel);
  font-size:15px;color:#fff;
  margin-bottom:14px;
  letter-spacing:1px;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:8px;}
.footer-col a{
  font-size:14px;color:var(--text-secondary);
  transition:all var(--transition);
}
.footer-col a:hover{color:var(--primary-glow);text-shadow:0 0 8px rgba(59,130,246,0.4);}
.footer-mid{
  max-width:1200px;margin:0 auto;padding:16px 24px;
  border-top:1px solid rgba(255,255,255,0.05);
  display:flex;align-items:center;gap:12px;
}
.footer-mid .footer-brand{
  font-family:var(--font-pixel);
  font-size:16px;font-weight:700;color:#fff;
}
.footer-mid .footer-tag{
  font-size:12px;color:var(--text-aux);
}
.footer-copy{
  max-width:1200px;margin:0 auto;padding:0 24px 24px;
  font-size:13px;color:var(--text-aux);
  text-align:left;
}

/* ---------- 响应式 ---------- */
@media (min-width:769px) and (max-width:1024px){
  .sidebar{width:64px;}
  .main-content{margin-left:64px;}
  .sidebar-brand{justify-content:center;padding:16px 0;}
  .brand-name{display:none;}
  .sidebar-nav{padding:16px 8px;}
  .nav-item{justify-content:center;padding:0;}
  .nav-item span{display:none;}
  .nav-item.active{box-shadow:inset 3px 0 0 var(--primary);}
  .sidebar-badge{display:none;}
  .category-hero h1{font-size:30px;}
}
@media (max-width:768px){
  .mobile-topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;left:0;top:0;right:0;height:56px;
    background:rgba(10,14,26,0.95);
    border-bottom:1px solid var(--divider);
    padding:0 16px;
    z-index:1001;
  }
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform 0.25s ease-out;
    box-shadow:4px 0 24px rgba(0,0,0,0.4);
  }
  .sidebar.open{transform:translateX(0);}
  .menu-overlay{
    position:fixed;inset:0;
    background:rgba(0,0,0,0.6);
    z-index:1000;
  }
  .main-content{margin-left:0;padding-top:56px;}
  .category-hero{min-height:280px;}
  .category-hero h1{font-size:26px;}
  .pixel-divider{margin-top:16px;}
  .hero-pixel-art{display:none;}

  .section{padding:48px 0;}
  .compare-section{padding:48px 0;}
  .faq-section{padding:48px 0;}
  .cta-inner{padding:32px 16px;}
  .compare-grid{grid-template-columns:1fr;}
  .vs-badge{justify-self:center;}

  .filter-section{padding:24px 0 4px;}
  .filter-bar{
    flex-wrap:nowrap;
    overflow-x:auto;
    scrollbar-width:none;
    margin:0 -16px;
    padding:0 16px 8px;
  }
  .filter-bar::-webkit-scrollbar{display:none;}
  .filter-tag{flex-shrink:0;}

  .studio-card{flex-direction:column;gap:12px;}
  .studio-media{width:100%;}
  .studio-media img{height:140px;}
  .faq-a{padding-left:20px;}

  .footer-grid{grid-template-columns:1fr;padding:32px 16px 16px;}
  .footer-mid{padding:14px 16px;}
  .footer-copy{padding:0 16px 20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-btn{width:100%;}
  .cta-btn .btn{width:100%;}
}