/* roulang page: index */
:root {
            --bg-bone: #F8F7F4;
            --bg-white: #FFFFFF;
            --bg-dark: #121316;
            --bg-dark-card: #1C1E22;
            --brand-black: #18181B;
            --accent-orange: #EA580C;
            --accent-orange-hover: #C2410C;
            --accent-teal: #0F766E;
            --text-main: #111827;
            --text-body: #4B5563;
            --text-muted: #9CA3AF;
            --text-light: #F9FAFB;
            --border-light: #E5E4DF;
            --border-dark: #2D3039;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
            --shadow-hard: 4px 4px 0px #18181B;
            --transition-smooth: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            background-color: var(--bg-bone);
            color: var(--text-main);
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            overflow-x: hidden;
            background-color: var(--bg-bone);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            padding-left: clamp(1.25rem, 4vw, 3rem);
            padding-right: clamp(1.25rem, 4vw, 3rem);
        }

        .section-padding {
            padding-top: clamp(3.5rem, 6vw, 6rem);
            padding-bottom: clamp(3.5rem, 6vw, 6rem);
            border-bottom: 1px solid var(--border-light);
        }

        .section-dark {
            background-color: var(--bg-dark);
            color: var(--text-light);
            border-bottom: 1px solid var(--border-dark);
        }

        .section-alt {
            background-color: #F1F0EB;
        }

        /* 顶部导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(248, 247, 244, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
        }

        .topbar {
            background: var(--brand-black);
            color: var(--text-muted);
            font-size: 0.8125rem;
            padding: 0.45rem 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .topbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topbar-badge {
            color: #34D399;
            font-family: var(--font-mono);
            margin-right: 1rem;
        }

        .navbar {
            padding: 1rem 0;
        }

        .navbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--brand-black);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .logo-dot {
            width: 10px;
            height: 10px;
            background: var(--accent-orange);
            display: inline-block;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 1.75rem;
            align-items: center;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 0.25rem 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-orange);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.75rem;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: 2px;
            cursor: pointer;
            transition: var(--transition-smooth);
            text-align: center;
            white-space: nowrap;
            min-height: 44px;
        }

        .btn-primary {
            background-color: var(--accent-orange);
            color: #FFFFFF;
            border: 1px solid var(--accent-orange);
        }

        .btn-primary:hover {
            background-color: var(--accent-orange-hover);
            border-color: var(--accent-orange-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard);
        }

        .btn-dark {
            background-color: var(--brand-black);
            color: #FFFFFF;
            border: 1px solid var(--brand-black);
        }

        .btn-dark:hover {
            background-color: #27272A;
            transform: translateY(-2px);
            box-shadow: 4px 4px 0px rgba(0,0,0,0.25);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--brand-black);
            border: 1px solid var(--brand-black);
        }

        .btn-outline:hover {
            background-color: var(--brand-black);
            color: #FFFFFF;
        }

        .btn-outline-white {
            background: transparent;
            color: #FFFFFF;
            border: 1px solid #FFFFFF;
        }

        .btn-outline-white:hover {
            background: #FFFFFF;
            color: var(--brand-black);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--brand-black);
            margin: 5px 0;
            transition: var(--transition-smooth);
        }

        /* 标题体系 */
        .section-header {
            margin-bottom: 3.5rem;
            max-width: 800px;
        }

        .section-eyebrow {
            font-family: var(--font-mono);
            font-size: 0.875rem;
            color: var(--accent-orange);
            font-weight: 600;
            margin-bottom: 0.75rem;
            display: block;
            text-transform: uppercase;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
        }

        .section-dark .section-title {
            color: var(--text-light);
        }

        .section-desc {
            font-size: 1.0625rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        .section-dark .section-desc {
            color: var(--text-muted);
        }

        /* 01 Hero 首屏双栏门户 */
        .hero-section {
            background: #FFFFFF;
            position: relative;
            padding: clamp(3rem, 5vw, 5.5rem) 0;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: clamp(2rem, 4vw, 4.5rem);
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0.85rem;
            background: #FFF7ED;
            color: var(--accent-orange);
            border: 1px solid #FFEDD5;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            font-family: var(--font-mono);
        }

        .hero-title {
            font-size: clamp(2.25rem, 4.2vw, 3.65rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.025em;
            color: var(--brand-black);
            margin-bottom: 1.5rem;
        }

        .hero-desc {
            font-size: 1.125rem;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 2.25rem;
            max-width: 62ch;
        }

        .hero-btns {
            display: flex;
            gap: 1.25rem;
            margin-bottom: 2.5rem;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-light);
        }

        .stat-item-num {
            font-family: var(--font-mono);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--brand-black);
        }

        .stat-item-label {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* Hero 右侧快捷入口网格 */
        .hero-portal-card {
            background: var(--bg-bone);
            border: 1px solid var(--border-light);
            padding: 2rem;
            border-radius: 4px;
            box-shadow: 8px 8px 0px rgba(24, 24, 27, 0.05);
        }

        .portal-grid-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-light);
        }

        .portal-grid-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-black);
        }

        .portal-tag-status {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            padding: 0.2rem 0.5rem;
            background: #ECFDF5;
            color: #059669;
            border: 1px solid #A7F3D0;
        }

        .portal-nav-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .portal-tile {
            background: #FFFFFF;
            padding: 1.25rem;
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 120px;
        }

        .portal-tile:hover {
            border-color: var(--brand-black);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard);
        }

        .portal-tile-icon {
            font-family: var(--font-mono);
            font-size: 0.8125rem;
            color: var(--accent-orange);
            font-weight: 700;
        }

        .portal-tile-name {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--brand-black);
            margin-top: 0.5rem;
        }

        .portal-tile-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        /* 02 转型痛点 */
        .pain-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 3rem;
            align-items: flex-start;
        }

        .pain-lead {
            background: #FFFFFF;
            padding: 2.5rem;
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--accent-orange);
        }

        .pain-lead h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .pain-cards {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .pain-card {
            background: #FFFFFF;
            padding: 1.75rem;
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
        }

        .pain-card:hover {
            border-color: var(--brand-black);
        }

        .pain-badge {
            font-family: var(--font-mono);
            color: #DC2626;
            font-size: 0.75rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            display: inline-block;
        }

        .pain-card h4 {
            font-size: 1.125rem;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        .pain-card p {
            font-size: 0.875rem;
            color: var(--text-body);
        }

        /* 03 解决方案 */
        .solution-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .solution-img-box {
            position: relative;
            border: 1px solid var(--border-light);
            background: #FFFFFF;
            padding: 0.5rem;
        }

        .solution-specs {
            margin-top: 2rem;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .spec-badge {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: 1rem;
        }

        .spec-badge-title {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        .spec-badge-val {
            font-family: var(--font-mono);
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--brand-black);
            margin-top: 0.25rem;
        }

        /* 04 核心优势 6卡片 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .adv-card {
            background: #FFFFFF;
            padding: 2.25rem;
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition-smooth);
        }

        .adv-card:hover {
            border-color: var(--brand-black);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hard);
        }

        .adv-index {
            font-family: var(--font-mono);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--accent-orange);
            margin-bottom: 1.25rem;
        }

        .adv-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
            font-weight: 600;
        }

        .adv-card p {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 05 产品矩阵 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            align-items: stretch;
        }

        .product-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            position: relative;
            transition: var(--transition-smooth);
        }

        .product-card.featured {
            border-top: 4px solid var(--accent-orange);
            box-shadow: 8px 8px 0px rgba(24, 24, 27, 0.08);
        }

        .product-img {
            height: 200px;
            width: 100%;
            border-bottom: 1px solid var(--border-light);
        }

        .product-body {
            padding: 2.25rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .product-badge {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--accent-orange);
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .product-title {
            font-size: 1.35rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .product-feature-list {
            list-style: none;
            margin: 1.5rem 0 2rem;
            flex-grow: 1;
        }

        .product-feature-list li {
            font-size: 0.875rem;
            color: var(--text-body);
            padding: 0.5rem 0;
            border-bottom: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .product-feature-list li::before {
            content: "■";
            color: var(--accent-orange);
            font-size: 0.6rem;
        }

        /* 06 实施方法论 */
        .workflow-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .workflow-step {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: 1.75rem;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .wf-num {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-black);
            border-bottom: 2px solid var(--accent-orange);
            display: inline-block;
            width: max-content;
            margin-bottom: 1rem;
            padding-bottom: 0.25rem;
        }

        .workflow-step h3 {
            font-size: 1.125rem;
            margin-bottom: 0.75rem;
            font-weight: 600;
        }

        .workflow-step p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 07 深色工程哲学 */
        .dark-philosophy-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .code-block-box {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            padding: 2rem;
            font-family: var(--font-mono);
            font-size: 0.875rem;
            color: #A1A1AA;
            line-height: 1.8;
            border-left: 3px solid var(--accent-teal);
        }

        .table-custom {
            width: 100%;
            border-collapse: collapse;
            margin-top: 1.5rem;
            font-size: 0.875rem;
        }

        .table-custom th, .table-custom td {
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
        }

        .table-custom th {
            color: var(--text-light);
            font-weight: 600;
            background: rgba(255, 255, 255, 0.03);
        }

        /* 08 关键数据条 */
        .metrics-strip {
            background: #000000;
            color: #FFFFFF;
            padding: 3.5rem 0;
            border-bottom: 1px solid var(--border-dark);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .metric-val {
            font-family: var(--font-mono);
            font-size: clamp(2.25rem, 3.5vw, 3.5rem);
            font-weight: 800;
            color: var(--accent-orange);
            line-height: 1.1;
        }

        .metric-title {
            font-size: 0.9375rem;
            margin-top: 0.75rem;
            color: #D1D5DB;
            font-weight: 500;
        }

        /* 09 深度用户故事 */
        .story-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
            margin-bottom: 3.5rem;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: 2.5rem;
        }

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

        .story-meta {
            font-family: var(--font-mono);
            font-size: 0.8125rem;
            color: var(--accent-orange);
            margin-bottom: 0.75rem;
        }

        .story-content h3 {
            font-size: 1.45rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        /* 10 客户口碑与证言 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .testi-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
        }

        .testi-quote {
            font-size: 1.0625rem;
            color: var(--text-main);
            font-style: italic;
            line-height: 1.7;
            margin-bottom: 2rem;
            position: relative;
        }

        .testi-quote::before {
            content: "“";
            font-size: 3rem;
            position: absolute;
            top: -1.5rem;
            left: -1rem;
            color: #E5E7EB;
            z-index: 0;
            font-family: serif;
        }

        .testi-user {
            border-top: 1px solid var(--border-light);
            padding-top: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .user-name {
            font-weight: 700;
            font-size: 0.9375rem;
        }

        .user-role {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 11 适用场景画像 */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .aud-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: 2rem;
            transition: var(--transition-smooth);
        }

        .aud-card:hover {
            border-color: var(--brand-black);
            transform: translateY(-2px);
        }

        .aud-tag {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--accent-orange);
            background: #FFF7ED;
            padding: 0.2rem 0.5rem;
            display: inline-block;
            margin-bottom: 1rem;
        }

        .aud-card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.75rem;
            font-weight: 600;
        }

        .aud-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 12 技术指标看板 */
        .specs-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .spec-tile {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            padding: 1.75rem;
        }

        .spec-tile-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }

        .spec-tile-title {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .spec-tile-status {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: #34D399;
        }

        .spec-tile-val {
            font-family: var(--font-mono);
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }

        .spec-tile-desc {
            font-size: 0.8125rem;
            color: #9CA3AF;
        }

        /* 13 行业资讯与白皮书 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--brand-black);
            box-shadow: var(--shadow-hard);
        }

        .news-img {
            height: 180px;
            width: 100%;
        }

        .news-content {
            padding: 1.75rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }

        .news-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-orange);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        /* 14 FAQ 与行动转化 */
        .faq-cta-wrapper {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            padding: clamp(2rem, 5vw, 4rem);
        }

        .faq-section {
            margin-bottom: 4rem;
        }

        .faq-list {
            margin-top: 2rem;
            border-top: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-trigger {
            width: 100%;
            background: none;
            border: none;
            padding: 1.5rem 0;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--brand-black);
        }

        .faq-icon {
            font-family: var(--font-mono);
            font-size: 1.25rem;
            color: var(--accent-orange);
            transition: var(--transition-smooth);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-body);
            font-size: 0.9375rem;
            line-height: 1.7;
        }

        .faq-content p {
            padding-bottom: 1.5rem;
        }

        .cta-box {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 3rem;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .form-input {
            width: 100%;
            padding: 0.85rem 1rem;
            background: var(--bg-dark-card);
            border: 1px solid var(--border-dark);
            color: #FFFFFF;
            outline: none;
        }

        .form-input:focus {
            border-color: var(--accent-orange);
        }

        /* 页脚规范 */
        .site-footer {
            background: var(--brand-black);
            color: #9CA3AF;
            padding: 4.5rem 0 2rem;
            border-top: 1px solid var(--border-dark);
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1rem;
            margin-bottom: 1.25rem;
            font-weight: 600;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

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

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid var(--border-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.8125rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; }
            .pain-grid { grid-template-columns: 1fr; }
            .solution-split { grid-template-columns: 1fr; }
            .advantages-grid { grid-template-columns: repeat(2, 1fr); }
            .product-grid { grid-template-columns: 1fr; }
            .workflow-row { grid-template-columns: repeat(2, 1fr); }
            .dark-philosophy-grid { grid-template-columns: 1fr; }
            .metrics-grid { grid-template-columns: repeat(2, 1fr); }
            .story-row, .story-row.reverse { grid-template-columns: 1fr; }
            .testimonials-grid { grid-template-columns: 1fr; }
            .audience-grid { grid-template-columns: repeat(2, 1fr); }
            .specs-dashboard { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: 1fr; }
            .cta-box { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .topbar { display: none; }
            .nav-menu {
                position: fixed;
                top: 65px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                flex-direction: column;
                padding: 2rem;
                gap: 1.25rem;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-150%);
                transition: transform 0.3s ease-in-out;
                z-index: 999;
            }
            .nav-menu.open {
                transform: translateY(0);
            }
            .mobile-toggle { display: block; }
            .hero-stats { grid-template-columns: 1fr; }
            .pain-cards { grid-template-columns: 1fr; }
            .advantages-grid { grid-template-columns: 1fr; }
            .workflow-row { grid-template-columns: 1fr; }
            .audience-grid { grid-template-columns: 1fr; }
            .specs-dashboard { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }