/* roulang page: index */
:root {
      --bg-dark: #060913;
      --bg-secondary: #0b132b;
      --surface-1: #111d42;
      --surface-2: #162454;
      --surface-glass: rgba(17, 29, 66, 0.68);
      --surface-border: rgba(0, 242, 254, 0.18);
      --accent-cyan: #00f2fe;
      --accent-blue: #4facfe;
      --accent-purple: #7f00ff;
      --text-white: #ffffff;
      --text-light: #d1d8e6;
      --text-muted: #7e8ba6;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --container-max: 1240px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-dark);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background: radial-gradient(circle at 50% 0%, #101c44 0%, #060913 70%);
      color: var(--text-light);
      line-height: 1.68;
      overflow-x: hidden;
      min-width: 320px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(6, 9, 19, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 242, 254, 0.12);
    }
    .top-bar {
      background: #04060c;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.82rem;
      color: var(--text-muted);
      padding: 6px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-info-left span {
      margin-right: 20px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-info-right a {
      color: var(--text-muted);
      margin-left: 18px;
    }
    .top-info-right a:hover {
      color: var(--accent-cyan);
    }
    .main-nav {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-white);
      letter-spacing: 0.5px;
    }
    .brand-logo .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #04060c;
      font-size: 1.25rem;
      box-shadow: 0 0 16px rgba(0, 242, 254, 0.4);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
    }
    .nav-item {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-light);
      position: relative;
      padding: 6px 0;
    }
    .nav-item:hover, .nav-item.active {
      color: var(--accent-cyan);
    }
    .nav-item::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent-cyan);
      transition: var(--transition);
    }
    .nav-item:hover::after, .nav-item.active::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 24px;
      border-radius: 30px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #04060c;
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      box-shadow: 0 0 18px rgba(0, 242, 254, 0.45);
      border: none;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-glow:hover {
      box-shadow: 0 0 28px rgba(0, 242, 254, 0.8);
      transform: translateY(-2px);
      color: #000;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 9px 22px;
      border-radius: 30px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--accent-cyan);
      background: rgba(0, 242, 254, 0.04);
      border: 1px solid var(--accent-cyan);
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-outline:hover {
      background: rgba(0, 242, 254, 0.15);
      box-shadow: 0 0 16px rgba(0, 242, 254, 0.3);
      transform: translateY(-2px);
      color: #fff;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: var(--text-white);
      font-size: 1.5rem;
      cursor: pointer;
    }

    /* 移动端菜单抽屉 */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 108px;
      left: 0;
      width: 100%;
      background: rgba(6, 9, 19, 0.98);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--surface-border);
      padding: 24px;
      z-index: 999;
    }
    .mobile-drawer.active {
      display: block;
    }
    .mobile-nav-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .mobile-nav-link {
      font-size: 1.1rem;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      display: block;
    }

    /* 通用板块样式 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background: #090e1f;
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 20px;
      font-size: 0.8rem;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--accent-cyan);
      background: rgba(0, 242, 254, 0.08);
      border: 1px solid rgba(0, 242, 254, 0.25);
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 2.35rem;
      font-weight: 700;
      color: var(--text-white);
      line-height: 1.35;
      margin-bottom: 18px;
    }
    .section-title span {
      background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 玻璃拟态卡片通用 */
    .glass-card {
      background: var(--surface-glass);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: rgba(0, 242, 254, 0.45);
      transform: translateY(-4px);
      box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 242, 254, 0.15);
    }

    /* 板块 1: 首屏 Hero */
    .hero-section {
      padding-top: 170px;
      padding-bottom: 100px;
      position: relative;
      overflow: hidden;
      background: url('/assets/images/9da56753aef6faff.jpg') no-repeat center center / cover;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(6, 9, 19, 0.82) 0%, rgba(6, 9, 19, 0.96) 100%);
      z-index: 1;
    }
    .hero-container {
      position: relative;
      z-index: 2;
    }
    .hero-status-strip {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 6px 16px;
      background: rgba(17, 29, 66, 0.85);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 30px;
      margin-bottom: 24px;
      font-size: 0.85rem;
    }
    .status-pulse {
      width: 8px;
      height: 8px;
      background: #00ff88;
      border-radius: 50%;
      box-shadow: 0 0 8px #00ff88;
      animation: pulseAnim 2s infinite;
    }
    @keyframes pulseAnim {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.3); }
      100% { opacity: 1; transform: scale(1); }
    }
    h1.hero-main-title {
      font-size: 3.1rem;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    h1.hero-main-title em {
      font-style: normal;
      background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #9b51e0 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead-text {
      font-size: 1.15rem;
      color: var(--text-light);
      max-width: 820px;
      margin-bottom: 36px;
      line-height: 1.8;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .hero-metrics-capsule {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: rgba(11, 19, 43, 0.7);
      backdrop-filter: blur(16px);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      max-width: 960px;
    }
    .metric-cap-item {
      border-right: 1px solid rgba(255, 255, 255, 0.08);
      padding-right: 14px;
    }
    .metric-cap-item:last-child {
      border-right: none;
      padding-right: 0;
    }
    .metric-cap-num {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--accent-cyan);
      font-family: Consolas, Monaco, monospace;
    }
    .metric-cap-label {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 板块 2: 技术底座与产品介绍 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-image-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--surface-border);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .arch-badge-float {
      position: absolute;
      bottom: 24px;
      right: 24px;
      background: rgba(6, 9, 19, 0.9);
      border: 1px solid var(--accent-cyan);
      border-radius: var(--radius-sm);
      padding: 14px 20px;
      backdrop-filter: blur(10px);
    }
    .arch-badge-float strong {
      display: block;
      color: var(--accent-cyan);
      font-size: 1.1rem;
    }
    .arch-content h3 {
      font-size: 1.85rem;
      color: var(--text-white);
      margin-bottom: 20px;
      line-height: 1.4;
    }
    .arch-content p {
      color: var(--text-light);
      margin-bottom: 24px;
      line-height: 1.8;
    }
    .tech-spec-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .tech-spec-item {
      background: rgba(17, 29, 66, 0.4);
      border: 1px solid rgba(0, 242, 254, 0.12);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.9rem;
    }
    .tech-spec-item i {
      color: var(--accent-cyan);
      font-size: 1.1rem;
    }

    /* 板块 3: 核心优势六卡片网格 */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .advantage-card {
      position: relative;
      padding: 32px 26px;
    }
    .advantage-icon {
      width: 54px;
      height: 54px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(127, 0, 255, 0.15));
      border: 1px solid rgba(0, 242, 254, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      color: var(--accent-cyan);
      margin-bottom: 22px;
    }
    .advantage-card h4 {
      font-size: 1.25rem;
      color: var(--text-white);
      margin-bottom: 12px;
    }
    .advantage-card p {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
    }

    /* 板块 4: 数字化热门产品矩阵 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }
    .product-card.featured {
      border: 1px solid var(--accent-cyan);
      box-shadow: 0 0 35px rgba(0, 242, 254, 0.22);
      transform: scale(1.02);
      background: rgba(22, 36, 84, 0.75);
    }
    .featured-tag {
      position: absolute;
      top: 0;
      right: 28px;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
      color: #04060c;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-bottom-left-radius: 8px;
      border-bottom-right-radius: 8px;
      text-transform: uppercase;
    }
    .product-top h4 {
      font-size: 1.45rem;
      color: var(--text-white);
      margin-bottom: 12px;
    }
    .product-top .product-subtitle {
      font-size: 0.9rem;
      color: var(--accent-cyan);
      margin-bottom: 20px;
      font-weight: 500;
    }
    .product-features-list {
      margin: 24px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .product-features-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-light);
    }
    .product-features-list li i {
      color: var(--accent-cyan);
      margin-top: 4px;
    }
    .product-suit {
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 18px;
      margin-bottom: 22px;
    }

    /* 板块 5: 场景解构四分格 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .scenario-card {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      background: var(--surface-glass);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .scenario-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .scenario-tag {
      font-size: 0.8rem;
      color: var(--accent-cyan);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .scenario-body h4 {
      font-size: 1.2rem;
      color: var(--text-white);
      margin-bottom: 10px;
    }
    .scenario-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 6: 实时中台控制台演示 */
    .console-stage {
      background: #040711;
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
    }
    .console-topbar {
      background: #0c142b;
      padding: 12px 20px;
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: 1px solid rgba(0, 242, 254, 0.15);
    }
    .console-dots {
      display: flex;
      gap: 8px;
    }
    .console-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
    }
    .dot-red { background: #ff5f56; }
    .dot-yellow { background: #ffbd2e; }
    .dot-green { background: #27c93f; }
    .console-title-text {
      margin-left: 16px;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-family: Consolas, Monaco, monospace;
    }
    .console-content {
      position: relative;
    }
    .console-content img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      opacity: 0.85;
      display: block;
    }
    .console-metrics-dock {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: rgba(11, 19, 43, 0.95);
      padding: 24px 30px;
      border-top: 1px solid rgba(0, 242, 254, 0.15);
    }
    .console-dock-item {
      border-left: 2px solid var(--accent-cyan);
      padding-left: 14px;
    }
    .console-dock-num {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--text-white);
      font-family: Consolas, monospace;
    }
    .console-dock-label {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 板块 7: 实战案例深剖 */
    .case-banner {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
      background: radial-gradient(circle at 100% 100%, #162657 0%, #0c142e 100%);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-lg);
      padding: 44px;
    }
    .case-visual img {
      border-radius: var(--radius-md);
      border: 1px solid rgba(0, 242, 254, 0.2);
    }
    .case-details h4 {
      font-size: 1.9rem;
      color: var(--text-white);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .case-details p {
      font-size: 0.98rem;
      color: var(--text-light);
      margin-bottom: 28px;
      line-height: 1.75;
    }
    .case-kpis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      margin-bottom: 30px;
    }
    .kpi-box {
      background: rgba(6, 9, 19, 0.6);
      border: 1px solid rgba(0, 242, 254, 0.15);
      border-radius: var(--radius-sm);
      padding: 16px;
      text-align: center;
    }
    .kpi-box strong {
      font-size: 1.8rem;
      color: var(--accent-cyan);
      display: block;
      font-family: Consolas, monospace;
    }
    .kpi-box span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }    /* 板块 8: 数字化服务梯度方案 */
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .tier-card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      border-radius: var(--radius-md);
      padding: 34px 28px;
    }
    .tier-card.popular {
      background: linear-gradient(180deg, rgba(28, 42, 94, 0.85) 0%, rgba(17, 29, 66, 0.95) 100%);
      border: 1px solid var(--accent-cyan);
      box-shadow: 0 0 30px rgba(0, 242, 254, 0.2);
      transform: translateY(-8px);
    }
    .tier-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 700;
      color: #04060c;
      background: var(--accent-cyan);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }
    .tier-name {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 8px;
    }
    .tier-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 44px;
    }
    .tier-specs {
      display: flex;
      flex-direction: column;
      gap: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      margin-bottom: 28px;
    }
    .tier-spec-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-light);
    }
    .tier-spec-item i {
      color: var(--accent-cyan);
      font-size: 0.85rem;
    }

    /* 板块 9: 数字化标杆用户故事 */
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .story-card {
      padding: 32px;
    }
    .story-quote {
      font-size: 1.05rem;
      color: var(--text-light);
      line-height: 1.8;
      margin-bottom: 24px;
      position: relative;
    }
    .story-quote::before {
      content: '“';
      font-size: 3.5rem;
      color: rgba(0, 242, 254, 0.15);
      position: absolute;
      top: -24px;
      left: -12px;
      font-family: Georgia, serif;
    }
    .story-author {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .author-avatar {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      border: 2px solid var(--accent-cyan);
      object-fit: cover;
    }
    .author-info h5 {
      font-size: 1.05rem;
      color: var(--text-white);
      margin-bottom: 4px;
    }
    .author-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 板块 10: 关键运营效能数据条 */
    .kpi-strip-section {
      background: linear-gradient(90deg, #070d1e 0%, #101c44 50%, #070d1e 100%);
      border-top: 1px solid rgba(0, 242, 254, 0.2);
      border-bottom: 1px solid rgba(0, 242, 254, 0.2);
      padding: 60px 0;
    }
    .kpi-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .kpi-strip-item {
      position: relative;
    }
    .kpi-strip-item::after {
      content: '';
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background: rgba(255, 255, 255, 0.1);
    }
    .kpi-strip-item:last-child::after {
      display: none;
    }
    .kpi-strip-number {
      font-size: 2.85rem;
      font-weight: 800;
      color: var(--text-white);
      font-family: Consolas, Monaco, monospace;
      letter-spacing: -1px;
      background: linear-gradient(180deg, #ffffff 40%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .kpi-strip-title {
      font-size: 0.95rem;
      color: var(--text-light);
      margin-top: 6px;
    }
    .kpi-strip-sub {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 板块 11: 多维行业用户口碑墙 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      padding: 26px;
    }
    .review-stars {
      color: #ffbd2e;
      margin-bottom: 14px;
      font-size: 0.85rem;
      display: flex;
      gap: 4px;
    }
    .review-text {
      font-size: 0.92rem;
      color: var(--text-light);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .review-user-tag {
      font-size: 0.82rem;
      color: var(--accent-cyan);
      display: inline-block;
      background: rgba(0, 242, 254, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
    }

    /* 板块 12: 行业前沿内嵌动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border-radius: var(--radius-md);
      background: var(--surface-glass);
      border: 1px solid var(--surface-border);
      transition: var(--transition);
    }
    .news-card:hover {
      transform: translateY(-5px);
      border-color: rgba(0, 242, 254, 0.4);
    }
    .news-thumb {
      height: 190px;
      position: relative;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.06);
    }
    .news-date {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(6, 9, 19, 0.85);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 4px;
      padding: 4px 8px;
      font-size: 0.78rem;
      color: var(--accent-cyan);
    }
    .news-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-content h4 {
      font-size: 1.15rem;
      color: var(--text-white);
      line-height: 1.45;
      margin-bottom: 12px;
    }
    .news-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.88rem;
      color: var(--accent-cyan);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
    }

    /* 板块 13: 高频业务答疑手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--surface-glass);
      border: 1px solid var(--surface-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-white);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-icon {
      font-size: 0.9rem;
      color: var(--accent-cyan);
      transition: transform 0.3s ease;
    }
    .faq-item.open .faq-icon {
      transform: rotate(180deg);
    }
    .faq-answer {
      display: none;
      padding: 0 24px 22px 24px;
      font-size: 0.93rem;
      color: var(--text-light);
      line-height: 1.75;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      margin-top: -6px;
      padding-top: 16px;
    }
    .faq-item.open .faq-answer {
      display: block;
    }

    /* 底部终极转化区 */
    .final-cta-section {
      padding: 80px 0 100px 0;
    }
    .final-cta-box {
      background: radial-gradient(circle at 50% 0%, #162963 0%, #0c142e 80%);
      border: 1px solid var(--accent-cyan);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      text-align: center;
      box-shadow: 0 0 50px rgba(0, 242, 254, 0.25);
      position: relative;
      overflow: hidden;
    }
    .final-cta-title {
      font-size: 2.2rem;
      color: var(--text-white);
      font-weight: 700;
      margin-bottom: 14px;
    }
    .final-cta-subtitle {
      font-size: 1.05rem;
      color: var(--text-light);
      max-width: 680px;
      margin: 0 auto 36px auto;
    }
    .lead-form-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr) auto;
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }
    .form-control-input, .form-control-select {
      background: rgba(6, 9, 19, 0.85);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: 30px;
      padding: 14px 22px;
      font-size: 0.92rem;
      color: var(--text-white);
      outline: none;
      width: 100%;
      transition: var(--transition);
    }
    .form-control-input:focus, .form-control-select:focus {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 14px rgba(0, 242, 254, 0.4);
    }
    .form-control-select option {
      background: #090e1f;
      color: #fff;
    }

    /* 统一专业页脚 */
    .site-footer {
      background: #04060c;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 30px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand-title {
      font-size: 1.3rem;
      color: var(--text-white);
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-brand-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      max-width: 340px;
    }
    .footer-col h5 {
      font-size: 1.05rem;
      color: var(--text-white);
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
      transform: translateX(3px);
    }
    .footer-contact-info {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .footer-contact-item i {
      color: var(--accent-cyan);
      margin-top: 4px;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .advantages-grid, .products-grid, .reviews-grid, .news-grid, .tier-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid, .case-banner {
        grid-template-columns: 1fr;
      }
      .hero-metrics-capsule {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .kpi-strip-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links, .nav-actions .btn-outline {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-section {
        padding-top: 110px;
        padding-bottom: 60px;
      }
      h1.hero-main-title {
        font-size: 2.15rem;
      }
      .section-title {
        font-size: 1.85rem;
      }
      .advantages-grid, .products-grid, .reviews-grid, .news-grid, .tier-grid, .stories-grid, .scenarios-grid {
        grid-template-columns: 1fr;
      }
      .scenario-card {
        grid-template-columns: 1fr;
      }
      .scenario-img-wrap {
        height: 200px;
      }
      .console-content img {
        height: 260px;
      }
      .console-metrics-dock {
        grid-template-columns: repeat(2, 1fr);
      }
      .lead-form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .case-banner {
        padding: 24px;
      }
      .final-cta-box {
        padding: 40px 20px;
      }
      .kpi-strip-grid {
        grid-template-columns: 1fr;
      }
      .kpi-strip-item::after {
        display: none;
      }
    }