/* roulang page: index */
:root {
      --color-primary: #059669;
      --color-primary-dark: #047857;
      --color-primary-light: #10b981;
      --color-teal: #0d9488;
      --color-accent: #f97316;
      --color-accent-hover: #ea580c;
      --color-dark: #0f172a;
      --color-dark-alt: #1e293b;
      --color-slate-900: #090d16;
      --color-gray-50: #f8fafc;
      --color-gray-100: #f1f5f9;
      --color-gray-200: #e2e8f0;
      --color-gray-300: #cbd5e1;
      --color-gray-500: #64748b;
      --color-gray-600: #475569;
      --color-gray-700: #334155;
      --color-gray-800: #1e293b;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
      --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.1);
      --shadow-xl: 0 20px 30px -10px rgba(5, 150, 105, 0.15);
      --container-max: 1280px;
      --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      color: var(--color-gray-700);
      background-color: var(--color-gray-50);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 顶部商业公告条 */
    .top-bar {
      background: var(--color-dark);
      color: #94a3b8;
      font-size: 0.8125rem;
      padding: 0.5rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.5rem;
    }
    .top-bar-links {
      display: flex;
      gap: 1.5rem;
      align-items: center;
    }
    .top-bar-badge {
      background: rgba(16, 185, 129, 0.15);
      color: var(--color-primary-light);
      padding: 0.15rem 0.6rem;
      border-radius: 9999px;
      font-weight: 500;
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--color-dark);
      letter-spacing: -0.02em;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 1.2rem;
      box-shadow: 0 4px 10px rgba(5, 150, 105, 0.3);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
    }
    .nav-links a {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--color-gray-700);
      position: relative;
      padding: 0.4rem 0;
    }
    .nav-links a:hover {
      color: var(--color-primary);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--color-primary);
      transition: width 0.3s ease;
    }
    .nav-links a:hover::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }

    /* 移动端汉堡按钮 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 0.5rem;
      color: var(--color-dark);
    }
    .mobile-menu-toggle svg {
      width: 26px;
      height: 26px;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.75rem 1.6rem;
      font-weight: 600;
      font-size: 0.9375rem;
      border-radius: var(--radius-md);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: 1px solid transparent;
      line-height: 1.2;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
      color: #fff;
      box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--color-primary-dark), var(--color-teal));
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(5, 150, 105, 0.4);
      color: #fff;
    }
    .btn-accent {
      background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
      color: #fff;
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
    }
    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(249, 115, 22, 0.45);
      color: #fff;
    }
    .btn-outline {
      border-color: var(--color-gray-300);
      background: #fff;
      color: var(--color-gray-800);
    }
    .btn-outline:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      background: #f0fdf4;
    }
    .btn-lg {
      padding: 0.95rem 2.2rem;
      font-size: 1.0625rem;
      border-radius: var(--radius-lg);
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      padding: 0.35rem 0.85rem;
      border-radius: 9999px;
      font-size: 0.8125rem;
      font-weight: 600;
      letter-spacing: 0.02em;
    }
    .badge-primary {
      background: #dcfce7;
      color: var(--color-primary-dark);
    }
    .badge-accent {
      background: #ffedd5;
      color: #c2410c;
    }

    /* 板块通用规范 */
    .section-block {
      padding: 5.5rem 0;
      position: relative;
    }
    .section-block-alt {
      background-color: #fff;
      border-top: 1px solid var(--color-gray-200);
      border-bottom: 1px solid var(--color-gray-200);
    }
    .section-block-dark {
      background: linear-gradient(180deg, #090e17 0%, #0d1527 100%);
      color: #f1f5f9;
    }
    .section-header {
      max-width: 820px;
      margin: 0 auto 3.5rem auto;
      text-align: center;
    }
    .section-header.text-left {
      text-align: left;
      margin-left: 0;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--color-dark);
      line-height: 1.3;
      margin-top: 0.75rem;
      margin-bottom: 1rem;
      letter-spacing: -0.02em;
    }
    .section-block-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--color-gray-500);
      line-height: 1.8;
    }
    .section-block-dark .section-desc {
      color: #94a3b8;
    }

    /* 板块 1: 首屏 Hero - 斜切设计与直播预告/数字化工作台 */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #064e3b 0%, #062f26 40%, #0b1928 100%);
      color: #fff;
      padding: 5rem 0 7rem;
      overflow: hidden;
      clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/9d1a5867aa5390b5.png');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      mix-blend-mode: overlay;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3.5rem;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      margin: 1.25rem 0 1.5rem;
      letter-spacing: -0.02em;
    }
    .hero-content p {
      font-size: 1.125rem;
      line-height: 1.85;
      color: #d1fae5;
      margin-bottom: 2.25rem;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 1.25rem;
      margin-bottom: 2.5rem;
    }
    .hero-stats-mini {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-stat-item .num {
      font-size: 1.75rem;
      font-weight: 800;
      color: #34d399;
      display: block;
    }
    .hero-stat-item .lbl {
      font-size: 0.85rem;
      color: #a7f3d0;
    }

    /* Hero 右侧直播推演/全景数字调度看板卡 */
    .hero-live-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(52, 211, 153, 0.3);
      border-radius: var(--radius-xl);
      padding: 2rem;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
      position: relative;
    }
    .live-badge-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background: #ef4444;
      border-radius: 50%;
      display: inline-block;
      margin-right: 6px;
      animation: pulseAnim 1.5s infinite;
    }
    @keyframes pulseAnim {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
      70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
    }
    .live-cover-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
      margin-bottom: 1.5rem;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .live-cover-box img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .live-countdown {
      background: rgba(0, 0, 0, 0.75);
      padding: 0.75rem 1rem;
      display: flex;
      align-items: center;
      justify-content: space-around;
      text-align: center;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .count-unit {
      display: flex;
      flex-direction: column;
    }
    .count-val {
      font-size: 1.35rem;
      font-weight: 800;
      color: #34d399;
    }
    .count-label {
      font-size: 0.7rem;
      color: #94a3b8;
    }

    /* 板块 2: 合集目录与产品矩阵架构 */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .catalog-card {
      background: #fff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      transition: all 0.3s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .catalog-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
      border-color: var(--color-primary-light);
    }
    .catalog-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #ecfdf5;
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 1.25rem;
    }
    .catalog-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.75rem;
    }
    .catalog-desc {
      font-size: 0.9375rem;
      color: var(--color-gray-500);
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .catalog-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.4rem;
    }
    .catalog-tag-item {
      font-size: 0.75rem;
      background: var(--color-gray-100);
      color: var(--color-gray-600);
      padding: 0.2rem 0.6rem;
      border-radius: 4px;
    }

    /* 板块 3: 核心功能优势矩阵 (6卡片 3x2) */
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .advantage-card {
      background: #ffffff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: 2.25rem 2rem;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }
    .advantage-card:hover {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .adv-icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, #e0f2fe, #dcfce7);
      color: var(--color-primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }
    .advantage-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.75rem;
    }
    .advantage-card p {
      font-size: 0.9375rem;
      color: var(--color-gray-600);
      line-height: 1.7;
    }

    /* 板块 4: 多端协同联动 (Grid 3x1) */
    .terminal-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .terminal-card {
      background: #fff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .terminal-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-xl);
    }
    .terminal-img-wrap {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .terminal-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .terminal-card:hover .terminal-img-wrap img {
      transform: scale(1.05);
    }
    .terminal-body {
      padding: 1.75rem;
    }
    .terminal-body h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.65rem;
    }
    .terminal-body p {
      font-size: 0.9375rem;
      color: var(--color-gray-600);
      line-height: 1.65;
    }

    /* 板块 5: 深色数字基座理念 */
    .tech-spec-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      margin-top: 3.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 2.5rem;
    }
    .spec-item h4 {
      font-size: 1.5rem;
      color: #34d399;
      font-weight: 800;
      margin-bottom: 0.35rem;
    }
    .spec-item p {
      font-size: 0.875rem;
      color: #94a3b8;
    }

    /* 板块 6: 场景化解决方案 */
    .solutions-tabs-content {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
    }
    .solution-box {
      background: #fff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      box-shadow: var(--shadow-sm);
    }
    .sol-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 1.25rem;
    }
    .sol-title {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--color-dark);
    }
    .pain-point-box {
      background: #fef2f2;
      border-left: 4px solid #ef4444;
      padding: 0.85rem 1.15rem;
      margin-bottom: 1rem;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-size: 0.9rem;
      color: #991b1b;
    }
    .resolve-box {
      background: #f0fdf4;
      border-left: 4px solid var(--color-primary);
      padding: 0.85rem 1.15rem;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-size: 0.9rem;
      color: #166534;
    }

    /* 板块 7: 标杆客户与用户实景故事 */
    .case-story-wrap {
      display: flex;
      flex-direction: column;
      gap: 3.5rem;
    }
    .case-story-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }
    .case-story-row.reverse {
      grid-template-columns: 1fr 1fr;
      direction: rtl;
    }
    .case-story-row.reverse .case-text-col {
      direction: ltr;
    }
    .case-img-col {
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }
    .case-img-col img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .case-text-col h3 {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--color-dark);
      margin-top: 0.75rem;
      margin-bottom: 1rem;
    }
    .case-text-col p {
      font-size: 1rem;
      color: var(--color-gray-600);
      margin-bottom: 1.5rem;
    }
    .metric-progress-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .progress-bar-item {
      background: var(--color-gray-100);
      border-radius: var(--radius-sm);
      padding: 0.85rem 1.25rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .progress-bar-item span.label {
      font-weight: 600;
      color: var(--color-dark);
    }
    .progress-bar-item span.gain {
      color: var(--color-primary);
      font-weight: 700;
      font-size: 1.15rem;
    }

    /* 板块 8: 运营数据对比与统计条 */
    .metrics-banner {
      background: linear-gradient(90deg, #064e3b 0%, #0d9488 100%);
      color: #fff;
      padding: 3.5rem 0;
      box-shadow: inset 0 2px 10px rgba(0,0,0,0.15);
    }
    .metrics-flex {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .metric-col h3 {
      font-size: 2.75rem;
      font-weight: 900;
      color: #ffffff;
      line-height: 1.1;
      margin-bottom: 0.5rem;
      letter-spacing: -0.02em;
    }
    .metric-col p {
      font-size: 0.95rem;
      color: #a7f3d0;
      font-weight: 500;
    }

    /* 板块 9: 真实客户口碑墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: 2.25rem 2rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }
    .testimonial-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
      border-color: var(--color-teal);
    }
    .t-stars {
      color: #f59e0b;
      font-size: 1rem;
      margin-bottom: 1rem;
      letter-spacing: 2px;
    }
    .t-text {
      font-size: 0.965rem;
      color: var(--color-gray-600);
      line-height: 1.75;
      margin-bottom: 1.75rem;
      font-style: normal;
    }
    .t-author {
      display: flex;
      align-items: center;
      gap: 1rem;
      border-top: 1px solid var(--color-gray-100);
      padding-top: 1.25rem;
    }
    .t-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ecfdf5;
      color: var(--color-primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }
    .t-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--color-dark);
    }
    .t-meta span {
      font-size: 0.8125rem;
      color: var(--color-gray-500);
    }

    /* 板块 10: 行业资讯与数字化实践 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .news-thumb {
      height: 200px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 1.75rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 0.8125rem;
      color: var(--color-gray-500);
      margin-bottom: 0.5rem;
      font-weight: 500;
    }
    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.75rem;
      line-height: 1.45;
    }
    .news-summary {
      font-size: 0.9rem;
      color: var(--color-gray-600);
      line-height: 1.65;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .news-link {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--color-primary);
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    /* 板块 11: 平台常见业务解答 FAQ */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item:hover {
      border-color: var(--color-primary-light);
    }
    .faq-question {
      padding: 1.35rem 1.75rem;
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--color-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-icon {
      font-size: 1.35rem;
      font-weight: 400;
      color: var(--color-primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      display: none;
      padding: 0 1.75rem 1.5rem 1.75rem;
      font-size: 0.95rem;
      color: var(--color-gray-600);
      line-height: 1.8;
      border-top: 1px solid var(--color-gray-100);
      margin-top: 0.25rem;
      padding-top: 1.25rem;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块 12: 服务保障与安全承诺 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .guarantee-card {
      background: #ffffff;
      border: 1px solid var(--color-gray-200);
      border-radius: var(--radius-lg);
      padding: 2rem 1.5rem;
      text-align: center;
      transition: all 0.3s ease;
    }
    .guarantee-card:hover {
      border-color: var(--color-teal);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .guarantee-badge {
      width: 56px;
      height: 56px;
      margin: 0 auto 1.25rem auto;
      border-radius: 50%;
      background: #f0fdf4;
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 800;
    }
    .guarantee-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-dark);
      margin-bottom: 0.5rem;
    }
    .guarantee-card p {
      font-size: 0.875rem;
      color: var(--color-gray-500);
      line-height: 1.6;
    }

    /* 板块 13: 全局演示预约与转化表单 */
    .contact-cta-wrapper {
      background: linear-gradient(135deg, #090e17 0%, #062f26 100%);
      border-radius: var(--radius-xl);
      padding: 4rem 3.5rem;
      color: #fff;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 4rem;
      align-items: center;
      box-shadow: var(--shadow-xl);
    }
    .cta-text-side h2 {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 1.25rem;
      letter-spacing: -0.02em;
    }
    .cta-text-side p {
      font-size: 1.05rem;
      color: #a7f3d0;
      line-height: 1.8;
      margin-bottom: 2rem;
    }
    .direct-call-box {
      display: flex;
      align-items: center;
      gap: 1.25rem;
      background: rgba(255, 255, 255, 0.08);
      padding: 1.25rem 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .direct-call-box .phone {
      font-size: 1.5rem;
      font-weight: 800;
      color: #34d399;
    }
    .cta-form-side {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 2.5rem 2rem;
      color: var(--color-gray-800);
      box-shadow: var(--shadow-lg);
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--color-gray-700);
      margin-bottom: 0.4rem;
    }
    .form-group input, .form-group select {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--color-gray-300);
      border-radius: var(--radius-md);
      background-color: var(--color-gray-50);
      color: var(--color-gray-800);
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-group input:focus, .form-group select:focus {
      border-color: var(--color-primary);
      background-color: #fff;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #090e17;
      color: #94a3b8;
      padding: 4.5rem 0 2rem;
      font-size: 0.9375rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand h4 {
      font-size: 1.25rem;
      color: #ffffff;
      font-weight: 800;
      margin-bottom: 1rem;
    }
    .footer-brand p {
      line-height: 1.8;
      margin-bottom: 1.5rem;
      color: #64748b;
    }
    .footer-col h5 {
      font-size: 1rem;
      color: #ffffff;
      font-weight: 700;
      margin-bottom: 1.25rem;
      position: relative;
      padding-bottom: 0.5rem;
    }
    .footer-col h5::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--color-primary);
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }
    .footer-links-list a:hover {
      color: var(--color-primary-light);
    }
    .footer-contact-item {
      margin-bottom: 0.75rem;
      line-height: 1.6;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8125rem;
      color: #64748b;
    }

    /* 响应式断点处理 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
      }
      .catalog-grid, .advantages-grid, .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-cta-wrapper {
        grid-template-columns: 1fr;
        padding: 3rem 2rem;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--color-gray-200);
        gap: 1rem;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-content h1 {
        font-size: 2.15rem;
      }
      .terminal-grid, .solutions-tabs-content, .testimonial-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .case-story-row, .case-story-row.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 2rem;
      }
      .metrics-flex {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
      }
      .tech-spec-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-block {
        padding: 3.5rem 0;
      }
    }

    @media (max-width: 520px) {
      .catalog-grid, .advantages-grid, .guarantee-grid, .tech-spec-bar {
        grid-template-columns: 1fr;
      }
      .hero-stats-mini {
        grid-template-columns: 1fr;
        gap: 1rem;
      }
    }