/* roulang page: index */
:root {
      --primary: #185a9d;
      --primary-dark: #0f3d6c;
      --primary-light: #2a75be;
      --accent: #00c4cc;
      --accent-deep: #2b5876;
      --bg-light: #f8fafd;
      --bg-white: #ffffff;
      --bg-dark: #0b1325;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --shadow-sm: 0 4px 6px -1px rgba(24, 90, 157, 0.05);
      --shadow-card: 0 10px 25px -5px rgba(24, 90, 157, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
      --shadow-hover: 0 20px 35px -10px rgba(24, 90, 157, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-spacing {
      padding-top: 96px;
      padding-bottom: 96px;
    }

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(24, 90, 157, 0.08);
      color: var(--primary);
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 18px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 28px;
      font-size: 0.975rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(24, 90, 157, 0.28);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(24, 90, 157, 0.38);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      border-color: var(--primary);
      background: rgba(24, 90, 157, 0.04);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .btn-accent {
      background: var(--accent);
      color: #0b1325;
      font-weight: 700;
    }

    .btn-accent:hover {
      background: #00adb5;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    .top-bar {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.8125rem;
      color: var(--text-muted);
      height: 38px;
    }

    .top-bar .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }

    .top-bar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .top-bar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      background: #10b981;
      border-radius: 50%;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 1.15rem;
      color: var(--text-main);
    }

    .brand-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 800;
      font-size: 1.15rem;
      box-shadow: 0 4px 10px rgba(24, 90, 157, 0.25);
    }

    .brand-title {
      display: flex;
      flex-direction: column;
    }

    .brand-title .main-txt {
      font-size: 1.125rem;
      letter-spacing: -0.2px;
      color: var(--primary-dark);
    }

    .brand-title .sub-txt {
      font-size: 0.725rem;
      color: var(--text-light);
      font-weight: 500;
      letter-spacing: 0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }

    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 6px 0;
      position: relative;
    }

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

    .nav-link::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s ease;
    }

    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-main);
    }

    /* 1. Hero 视频官网全宽遮罩版式 */
    .hero-section {
      position: relative;
      background-color: var(--bg-dark);
      color: #ffffff;
      padding: 110px 0 100px;
      overflow: hidden;
      min-height: 720px;
      display: flex;
      align-items: center;
    }

    .hero-bg-poster {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.32;
      filter: saturate(1.2);
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 65% 45%, rgba(0, 196, 204, 0.15) 0%, transparent 60%),
                  linear-gradient(180deg, rgba(11, 19, 37, 0.85) 0%, rgba(11, 19, 37, 0.95) 100%);
    }

    .hero-container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(0, 196, 204, 0.16);
      border: 1px solid rgba(0, 196, 204, 0.35);
      color: var(--accent);
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
      color: #ffffff;
    }

    .hero-title span {
      background: linear-gradient(135deg, #ffffff 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.125rem;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 34px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-video-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 16px;
      backdrop-filter: blur(8px);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }

    .video-viewport {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      aspect-ratio: 16 / 10;
      background: #000;
    }

    .video-viewport img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .video-viewport:hover img {
      transform: scale(1.03);
    }

    .play-btn-pulse {
      position: absolute;
      inset: 0;
      margin: auto;
      width: 68px;
      height: 68px;
      background: rgba(24, 90, 157, 0.85);
      border: 2px solid var(--accent);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      cursor: pointer;
      box-shadow: 0 0 0 0 rgba(0, 196, 204, 0.7);
      animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
    }

    .play-triangle {
      width: 0;
      height: 0;
      border-top: 10px solid transparent;
      border-bottom: 10px solid transparent;
      border-left: 17px solid #ffffff;
      margin-left: 4px;
    }

    @keyframes pulse-ring {
      0% {
        box-shadow: 0 0 0 0 rgba(0, 196, 204, 0.7);
      }
      70% {
        box-shadow: 0 0 0 22px rgba(0, 196, 204, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(0, 196, 204, 0);
      }
    }

    .hero-meta-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }

    .hero-meta-item .num {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--accent);
    }

    .hero-meta-item .label {
      font-size: 0.8125rem;
      color: #94a3b8;
    }

    /* 2. 服务亮点 (Intro/Highlights) */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }

    .highlight-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .highlight-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(24, 90, 157, 0.3);
    }

    .card-icon-wrap {
      width: 58px;
      height: 58px;
      background: rgba(24, 90, 157, 0.08);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 22px;
      color: var(--primary);
    }

    .highlight-card h3 {
      font-size: 1.25rem;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .highlight-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .spec-badge-list {
      margin-top: auto;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      padding-top: 16px;
      border-top: 1px dashed var(--border-color);
    }

    .spec-badge {
      font-size: 0.75rem;
      padding: 4px 10px;
      background: var(--bg-light);
      color: var(--text-muted);
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    /* 3. 核心优势六格网格 (Advantages) */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .adv-box {
      background: #ffffff;
      padding: 32px 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      transition: all 0.28s ease;
    }

    .adv-box:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .adv-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 14px;
    }

    .adv-num {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      opacity: 0.8;
    }

    .adv-box h3 {
      font-size: 1.15rem;
      color: var(--text-main);
    }

    .adv-box p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 4. 产品落地项目区 (Products) */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .product-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: transform 0.3s ease;
    }

    .product-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .product-img-holder {
      position: relative;
      height: 210px;
      overflow: hidden;
    }

    .product-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .product-card:hover .product-img-holder img {
      transform: scale(1.05);
    }

    .product-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(11, 19, 37, 0.85);
      color: var(--accent);
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 600;
      backdrop-filter: blur(4px);
    }

    .product-info {
      padding: 26px 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .product-info h3 {
      font-size: 1.2rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .product-info p {
      font-size: 0.925rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.65;
    }

    .product-specs {
      margin-top: auto;
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      font-size: 0.825rem;
      color: var(--text-muted);
    }

    .product-specs li {
      display: flex;
      justify-content: space-between;
      margin-bottom: 6px;
    }

    .product-specs li span:last-child {
      font-weight: 600;
      color: var(--primary);
    }

    /* 5. 沉浸式理念与深色案例区 (Cases) */
    .dark-cases-section {
      background-color: var(--bg-dark);
      color: #ffffff;
      padding: 100px 0;
    }

    .dark-cases-section .section-title {
      color: #ffffff;
    }

    .dark-cases-section .section-subtitle {
      color: #94a3b8;
    }

    .case-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 36px;
    }

    .case-card-dark {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr;
      transition: all 0.3s ease;
    }

    .case-card-dark:hover {
      border-color: rgba(0, 196, 204, 0.4);
      background: rgba(255, 255, 255, 0.06);
    }

    .case-visual {
      height: 230px;
      overflow: hidden;
      position: relative;
    }

    .case-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .case-card-dark:hover .case-visual img {
      transform: scale(1.04);
    }

    .case-body {
      padding: 28px;
    }

    .case-body .client-tag {
      font-size: 0.8125rem;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
      display: block;
    }

    .case-body h3 {
      font-size: 1.25rem;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .case-body p {
      font-size: 0.925rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .case-kpi-row {
      display: flex;
      gap: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 14px;
    }

    .case-kpi-item .val {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--accent);
    }

    .case-kpi-item .txt {
      font-size: 0.775rem;
      color: #94a3b8;
    }

    /* 6. 时段排班与合作运营排期卡 (Schedule) */
    .schedule-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      padding: 40px;
    }

    .schedule-header-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 28px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .schedule-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .schedule-legend {
      display: flex;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .schedule-legend span {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .dot-open {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
    }

    .dot-busy {
      width: 8px;
      height: 8px;
      background: #f59e0b;
      border-radius: 50%;
    }

    .schedule-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .slot-card {
      background: var(--bg-light);
      border-radius: var(--radius-sm);
      padding: 22px;
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }

    .slot-card.active-slot {
      background: rgba(24, 90, 157, 0.03);
      border-color: rgba(24, 90, 157, 0.3);
    }

    .slot-time {
      font-weight: 700;
      color: var(--primary);
      font-size: 1.05rem;
      margin-bottom: 6px;
    }

    .slot-type {
      font-size: 0.875rem;
      color: var(--text-main);
      font-weight: 600;
      margin-bottom: 10px;
    }

    .slot-desc {
      font-size: 0.825rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 12px;
    }

    .slot-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    .status-available {
      background: #e6fcf5;
      color: #0ca678;
    }

    .status-queue {
      background: #fff9db;
      color: #f59f00;
    }

    /* 7. 专家顾问与运营团队 (Team/Experts) */
    .team-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 26px;
    }

    .expert-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      text-align: center;
      padding: 30px 20px 24px;
      transition: all 0.3s ease;
    }

    .expert-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .expert-avatar-wrap {
      width: 96px;
      height: 96px;
      margin: 0 auto 18px;
      border-radius: 50%;
      overflow: hidden;
      border: 3px solid #e0f2fe;
    }

    .expert-avatar-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .expert-card h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .expert-title {
      font-size: 0.8125rem;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 12px;
      display: block;
    }

    .expert-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 成果数据指标条 (Metrics) */
    .metrics-section {
      background: linear-gradient(135deg, #185a9d 0%, #2b5876 100%);
      color: #ffffff;
      padding: 68px 0;
    }

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

    .metric-box {
      padding: 10px 16px;
      border-right: 1px solid rgba(255, 255, 255, 0.15);
    }

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

    .metric-box .metric-num {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 6px;
      color: var(--accent);
      letter-spacing: -0.5px;
    }

    .metric-box .metric-title {
      font-size: 1.05rem;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 4px;
    }

    .metric-box .metric-desc {
      font-size: 0.8125rem;
      color: #cbd5e1;
    }

    /* 9. 客户评价与保障承诺 (Testimonials & Trust) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 50px;
    }

    .testimonial-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }

    .testi-stars {
      color: #f59e0b;
      margin-bottom: 14px;
      font-size: 0.9rem;
      letter-spacing: 2px;
    }

    .testi-quote {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 22px;
      flex-grow: 1;
    }

    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 0.875rem;
    }

    .author-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .author-info span {
      font-size: 0.775rem;
      color: var(--text-muted);
    }

    .trust-badges-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .trust-badge-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .trust-badge-icon {
      width: 40px;
      height: 40px;
      background: rgba(24, 90, 157, 0.08);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.1rem;
      font-weight: 700;
      flex-shrink: 0;
    }

    .trust-badge-text h5 {
      font-size: 0.9rem;
      color: var(--text-main);
    }

    .trust-badge-text p {
      font-size: 0.775rem;
      color: var(--text-muted);
    }

    /* 10. 适用场景矩阵 (Scenarios) */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .scenario-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      transition: all 0.28s ease;
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .scenario-img-wrap {
      height: 180px;
      overflow: hidden;
    }

    .scenario-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .scenario-content {
      padding: 24px;
    }

    .scenario-tag {
      font-size: 0.75rem;
      color: var(--primary);
      background: #e0f2fe;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
      display: inline-block;
      margin-bottom: 10px;
    }

    .scenario-content h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scenario-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 新闻动态与行业洞察 (News) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .news-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .news-cover {
      height: 190px;
      overflow: hidden;
    }

    .news-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .news-card:hover .news-cover img {
      transform: scale(1.05);
    }

    .news-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 10px;
    }

    .news-body h3 {
      font-size: 1.15rem;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .news-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .news-link-btn {
      margin-top: auto;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 12. 预约表单与转化终局 (Contact & Form) */
    .contact-cta-wrapper {
      background: linear-gradient(135deg, #0b1325 0%, #185a9d 100%);
      border-radius: var(--radius-lg);
      padding: 60px;
      color: #ffffff;
      box-shadow: 0 20px 40px -15px rgba(11, 19, 37, 0.4);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .contact-cta-info h2 {
      font-size: 2.2rem;
      line-height: 1.3;
      margin-bottom: 18px;
      color: #ffffff;
    }

    .contact-cta-info p {
      font-size: 1rem;
      color: #cbd5e1;
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .contact-quick-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .contact-quick-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.925rem;
      color: #e2e8f0;
    }

    .contact-quick-points li::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      background: var(--accent);
      color: #0b1325;
      border-radius: 50%;
      font-size: 0.75rem;
      font-weight: 800;
    }

    .contact-form-box {
      background: #ffffff;
      padding: 36px 32px;
      border-radius: var(--radius-md);
      color: var(--text-main);
      box-shadow: var(--shadow-card);
    }

    .contact-form-box h3 {
      font-size: 1.3rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .contact-form-box .sub-hint {
      font-size: 0.825rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.925rem;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      background: #ffffff;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(24, 90, 157, 0.12);
    }

    .form-submit-btn {
      width: 100%;
      margin-top: 8px;
      padding: 13px;
    }

    /* 页脚设计 (Footer) */
    .site-footer {
      background: #0b1325;
      color: #94a3b8;
      padding-top: 72px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }

    .footer-columns {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 56px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand .brand-logo {
      color: #ffffff;
      margin-bottom: 18px;
    }

    .footer-brand .brand-title .main-txt {
      color: #ffffff;
    }

    .footer-brand p {
      font-size: 0.875rem;
      line-height: 1.7;
      color: #94a3b8;
      margin-bottom: 16px;
    }

    .footer-col h4 {
      font-size: 1rem;
      color: #ffffff;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.875rem;
    }

    .footer-contact-list li strong {
      color: #ffffff;
    }

    .footer-bottom {
      padding: 24px 0;
      font-size: 0.8125rem;
      text-align: center;
      color: #64748b;
    }

    .footer-bottom a {
      color: #94a3b8;
    }

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

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
      }
      .hero-actions {
        justify-content: center;
      }
      .hero-meta-stats {
        max-width: 500px;
        margin: 0 auto;
      }
      .hero-video-box {
        max-width: 600px;
        margin: 0 auto;
      }
      .highlights-grid, .advantages-grid, .products-grid, .scenarios-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .team-grid, .schedule-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-cta-wrapper {
        grid-template-columns: 1fr;
        padding: 40px;
      }
      .footer-columns {
        grid-template-columns: repeat(2, 1fr);
      }
      .trust-badges-bar {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .section-spacing {
        padding-top: 60px;
        padding-bottom: 60px;
      }
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
      }
      .nav-links.show-mobile {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .highlights-grid, .advantages-grid, .products-grid, .case-showcase-grid, .scenarios-grid, .news-grid, .team-grid, .schedule-grid, .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
      }
      .metric-box {
        border-right: none;
      }
      .footer-columns {
        grid-template-columns: 1fr;
      }
      .trust-badges-bar {
        grid-template-columns: 1fr;
      }
      .contact-cta-wrapper {
        padding: 24px;
      }
    }