/* roulang page: index */
:root {
            --bg-base: #0c0f12;
            --bg-surface: #14181d;
            --bg-card: #1b2129;
            --bg-card-hover: #212934;
            --primary: #00e599;
            --primary-dark: #00b377;
            --accent: #ff6b35;
            --accent-hover: #ff8559;
            --text-white: #f5f7fa;
            --text-body: #a0aec0;
            --text-muted: #64748b;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-bright: rgba(0, 229, 153, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 229, 153, 0.15);
            --shadow-accent: 0 0 24px rgba(255, 107, 53, 0.25);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-base);
            color: var(--text-body);
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-body);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            font-size: 16px;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-white);
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-top: 0;
        }

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

        a:hover, a:focus {
            color: #4dffb8;
        }

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

        .grid-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .mono-num {
            font-variant-numeric: tabular-nums;
            font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        }

        /* 顶部微数据条 */
        .top-telemetry-bar {
            background: #07090b;
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.8125rem;
            padding: 0.45rem 0;
            color: var(--text-muted);
        }

        .telemetry-flex {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--primary);
            box-shadow: 0 0 8px var(--primary);
            margin-right: 6px;
            vertical-align: middle;
        }

        /* 黏性主导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(12, 15, 18, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dim);
            padding: 0.85rem 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-white);
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: -0.03em;
        }

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

        .brand-badge-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #008055 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #06110c;
            font-weight: 900;
            font-size: 1rem;
            box-shadow: var(--shadow-glow);
        }

        .nav-anchor-list {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-anchor-list a {
            color: var(--text-body);
            font-size: 0.9375rem;
            font-weight: 500;
            padding: 0.4rem 0.2rem;
            position: relative;
        }

        .nav-anchor-list a:hover,
        .nav-anchor-list a.active {
            color: var(--primary);
        }

        .nav-anchor-list a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition-base);
        }

        .nav-anchor-list a:hover::after,
        .nav-anchor-list a.active::after {
            width: 100%;
        }

        /* 按钮体系 */
        .btn-cyber {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 48px;
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9375rem;
            cursor: pointer;
            transition: var(--transition-base);
            border: 1px solid transparent;
            text-align: center;
            gap: 0.5rem;
        }

        .btn-primary-green {
            background: var(--primary);
            color: #05140e;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary-green:hover, .btn-primary-green:focus {
            background: #26ffad;
            color: #05140e;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 229, 153, 0.4);
        }

        .btn-accent-orange {
            background: var(--accent);
            color: #ffffff;
            box-shadow: var(--shadow-accent);
        }

        .btn-accent-orange:hover, .btn-accent-orange:focus {
            background: var(--accent-hover);
            color: #ffffff;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(255, 107, 53, 0.45);
        }

        .btn-outline-cyber {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-white);
            border: 1px solid var(--border-dim);
        }

        .btn-outline-cyber:hover, .btn-outline-cyber:focus {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 229, 153, 0.06);
            box-shadow: var(--shadow-glow);
        }

        /* 通用板块间距与标题 */
        .section-block {
            padding: 5rem 0;
            position: relative;
            border-bottom: 1px solid var(--border-dim);
        }

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

        .section-pitch-black {
            background: radial-gradient(circle at 80% 20%, rgba(0, 229, 153, 0.09), transparent 45%),
                        linear-gradient(180deg, #07090b 0%, #0d1218 100%);
        }

        .section-header {
            margin-bottom: 3rem;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8125rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: rgba(0, 229, 153, 0.1);
            border: 1px solid rgba(0, 229, 153, 0.25);
            padding: 0.28rem 0.75rem;
            border-radius: 999px;
            margin-bottom: 0.85rem;
        }

        .section-title {
            font-size: clamp(1.65rem, 3vw, 2.35rem);
            margin-bottom: 0.9rem;
        }

        .section-desc {
            color: var(--text-body);
            max-width: 760px;
            font-size: 1.02rem;
            margin-bottom: 0;
        }

        /* 1. 首屏卡片堆叠超频轮播区 */
        .hero-section {
            position: relative;
            padding: 4.5rem 0 5rem;
            background-image: linear-gradient(135deg, rgba(12, 15, 18, 0.93) 0%, rgba(12, 15, 18, 0.78) 55%, rgba(20, 24, 29, 0.95) 100%), url('/assets/images/9ea4394b01bc7df2.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-dim);
        }

        .hero-stack-wrapper {
            display: grid;
            grid-template-columns: 1.35fr 0.95fr;
            gap: 2rem;
            align-items: stretch;
        }

        .hero-main-card {
            background: rgba(27, 33, 41, 0.88);
            border: 1px solid rgba(0, 229, 153, 0.3);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-glow);
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .hero-slide-pane {
            display: none;
            animation: fadeInSlide 0.35s ease;
        }

        .hero-slide-pane.active {
            display: block;
        }

        @keyframes fadeInSlide {
            from { opacity: 0; transform: translateY(6px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .hero-h1 {
            font-size: clamp(1.85rem, 3.4vw, 2.75rem);
            margin-bottom: 1rem;
            color: var(--text-white);
        }

        .hero-lead {
            font-size: 1.05rem;
            color: var(--text-body);
            margin-bottom: 1.75rem;
            line-height: 1.75;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.75rem;
        }

        .hero-switcher-bar {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding-top: 1.25rem;
            border-top: 1px solid var(--border-dim);
            flex-wrap: wrap;
        }

        .slide-tab-btn {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dim);
            color: var(--text-body);
            padding: 0.5rem 0.95rem;
            border-radius: var(--radius-sm);
            font-size: 0.82rem;
            font-weight: 600;
            cursor: pointer;
            min-height: 42px;
            transition: var(--transition-base);
        }

        .slide-tab-btn.active,
        .slide-tab-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 229, 153, 0.1);
        }

        /* 右侧两张交错堆叠侧卡 */
        .hero-side-stack {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
            justify-content: space-between;
        }

        .hero-side-card {
            background: rgba(20, 24, 29, 0.92);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: var(--transition-base);
            position: relative;
        }

        .hero-side-card:first-child {
            transform: translateX(-10px);
            border-left: 3px solid var(--primary);
        }

        .hero-side-card:last-child {
            transform: translateX(6px);
            border-left: 3px solid var(--accent);
        }

        .hero-side-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .topology-img-box {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin: 0.75rem 0;
            border: 1px solid var(--border-dim);
            position: relative;
        }

        .topology-img-box img {
            width: 100%;
            height: 135px;
            object-fit: cover;
        }

        .countdown-ticker {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            margin-top: 0.75rem;
        }

        .ticker-cell {
            background: #0c0f12;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 0.5rem;
            text-align: center;
        }

        .ticker-cell strong {
            display: block;
            font-size: 1.25rem;
            color: var(--accent);
        }

        .ticker-cell span {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* 通用卡片设计 */
        .cyber-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            height: 100%;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .cyber-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }

        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.65rem;
            border-radius: 4px;
            background: rgba(0, 229, 153, 0.12);
            color: var(--primary);
            margin-bottom: 0.9rem;
            width: fit-content;
        }

        .card-tag.orange {
            background: rgba(255, 107, 53, 0.15);
            color: var(--accent);
        }

        /* 2. 硬件架构交错区 */
        .hw-spec-list {
            list-style: none;
            margin: 1.5rem 0;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }

        .hw-spec-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            padding: 1rem;
            border-radius: var(--radius-sm);
        }

        .hw-spec-item strong {
            display: block;
            color: var(--primary);
            font-size: 1.05rem;
            margin-bottom: 0.25rem;
        }

        .cert-badge-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1.25rem;
        }

        .cert-pill {
            font-size: 0.8rem;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-dim);
            padding: 0.4rem 0.85rem;
            border-radius: var(--radius-sm);
        }

        /* 4. 三档核心配置对比卡 */
        .pricing-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 2rem 1.75rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition-base);
            position: relative;
        }

        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            background: linear-gradient(180deg, rgba(0, 229, 153, 0.07) 0%, var(--bg-card) 35%);
        }

        .pricing-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .recommend-ribbon {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.75rem;
            border-radius: 999px;
        }

        .price-num {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 0.75rem 0;
        }

        .price-num small {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .spec-check-list {
            list-style: none;
            margin: 1.25rem 0 1.75rem;
            padding: 0;
        }

        .spec-check-list li {
            padding: 0.55rem 0;
            border-bottom: 1px dashed var(--border-dim);
            font-size: 0.92rem;
            display: flex;
            justify-content: space-between;
        }

        .spec-check-list li span:last-child {
            color: var(--text-white);
            font-weight: 600;
        }

        /* 5. 引擎调度对比矩阵 */
        .engine-compare-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dim);
        }

        .engine-compare-table th,
        .engine-compare-table td {
            padding: 1rem 1.25rem;
            text-align: left;
            border-bottom: 1px solid var(--border-dim);
        }

        .engine-compare-table th {
            background: #101419;
            color: var(--text-white);
            font-weight: 700;
        }

        .engine-compare-table td.highlight-col {
            color: var(--primary);
            font-weight: 600;
            background: rgba(0, 229, 153, 0.04);
        }

        /* 7. 横向关键数据通栏 */
        .stats-ribbon-section {
            padding: 3.5rem 0;
            background: linear-gradient(90deg, #0f171e 0%, #132226 50%, #0f171e 100%);
            border-bottom: 1px solid var(--border-dim);
        }

        .stat-box {
            text-align: center;
            padding: 1rem;
            border-right: 1px solid var(--border-dim);
        }

        .stat-box:last-child {
            border-right: none;
        }

        .stat-value {
            font-size: clamp(2rem, 3.5vw, 2.85rem);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 0.4rem;
        }

        .stat-label {
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
        }

        /* 8. 评测墙星级 */
        .star-rating {
            color: #ffb800;
            letter-spacing: 2px;
            font-size: 0.95rem;
            margin-bottom: 0.75rem;
        }

        .quote-text {
            font-style: normal;
            color: var(--text-body);
            margin-bottom: 1.25rem;
            font-size: 0.95rem;
        }

        .reviewer-meta {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-dim);
        }

        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            object-fit: cover;
            border: 1px solid var(--primary);
        }

        /* 9. 四步水平连线流程 */
        .step-flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            position: relative;
        }

        .step-node-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 1.6rem;
            position: relative;
            transition: var(--transition-base);
        }

        .step-node-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .step-index {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(0, 229, 153, 0.14);
            border: 1px solid var(--primary);
            color: var(--primary);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
        }

        /* 11. 手风琴 FAQ */
        .faq-accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            margin-bottom: 0.85rem;
            overflow: hidden;
        }

        .faq-trigger-btn {
            width: 100%;
            min-height: 54px;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            text-align: left;
            padding: 1rem 1.35rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .faq-trigger-btn:hover,
        .faq-trigger-btn[aria-expanded="true"] {
            color: var(--primary);
            background: rgba(0, 229, 153, 0.05);
        }

        .faq-icon-indicator {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform 0.25s ease;
        }

        .faq-trigger-btn[aria-expanded="true"] .faq-icon-indicator {
            transform: rotate(45deg);
        }

        .faq-content-panel {
            display: none;
            padding: 0 1.35rem 1.25rem;
            color: var(--text-body);
            border-top: 1px solid var(--border-dim);
            padding-top: 1rem;
        }

        .faq-content-panel.open {
            display: block;
        }

        /* 12. 底部沉浸转化区 */
        .bottom-cta-box {
            background: linear-gradient(135deg, #132421 0%, #1b2129 60%, #261b18 100%);
            border: 1px solid var(--border-bright);
            border-radius: var(--radius-lg);
            padding: 3rem;
            box-shadow: var(--shadow-glow);
        }

        .cyber-input, .cyber-select {
            background: #0c0f12 !important;
            border: 1px solid var(--border-dim) !important;
            color: var(--text-white) !important;
            border-radius: var(--radius-sm) !important;
            height: 48px !important;
            padding: 0 1rem !important;
            margin-bottom: 1rem !important;
        }

        .cyber-input:focus, .cyber-select:focus {
            border-color: var(--primary) !important;
            box-shadow: 0 0 0 2px rgba(0, 229, 153, 0.2) !important;
            outline: none !important;
        }

        /* 页脚 */
        .site-footer {
            background: #080a0c;
            padding: 4rem 0 2rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-body);
        }

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

        .footer-bottom-bar {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-dim);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        /* 移动端抽屉与响应式断点 */
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-dim);
            color: var(--text-white);
            min-height: 48px;
            padding: 0 0.9rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
        }

        @media (max-width: 1023px) {
            .hero-stack-wrapper {
                grid-template-columns: 1fr;
            }
            .hero-side-card:first-child,
            .hero-side-card:last-child {
                transform: none;
            }
            .step-flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-anchor-list {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                background: var(--bg-surface);
                padding: 1rem;
                border-radius: var(--radius-sm);
                border: 1px solid var(--border-dim);
                margin-top: 0.75rem;
            }
            .nav-anchor-list.mobile-open {
                display: flex;
            }
            .mobile-menu-toggle {
                display: inline-flex;
                align-items: center;
            }
            .header-inner {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 639px) {
            .section-block {
                padding: 3.25rem 0;
            }
            .hero-main-card {
                padding: 1.5rem;
            }
            .hw-spec-list,
            .step-flow-grid {
                grid-template-columns: 1fr;
            }
            .stat-box {
                border-right: none;
                border-bottom: 1px solid var(--border-dim);
            }
            .bottom-cta-box {
                padding: 1.75rem 1.25rem;
            }
            .engine-compare-table {
                display: block;
                overflow-x: auto;
            }
        }