:root {
      --bg-deep: #030712;
      --bg-navy: #060e24;
      --bg-card: rgba(8, 20, 48, 0.78);
      --bg-card-hover: rgba(13, 31, 72, 0.88);
      --bg-glass: rgba(10, 25, 58, 0.65);
      
      --cyan: #00f0ff;
      --cyan-glow: rgba(0, 240, 255, 0.35);
      --blue-electric: #0066ff;
      --blue-glow: rgba(0, 102, 255, 0.4);
      --blue-accent: #38bdf8;
      --indigo-glow: #6366f1;
      --emerald-glow: #10b981;
      --purple-glow: #a855f7;

      --text-white: #ffffff;
      --text-title: #f1f5f9;
      --text-body: #94a3b8;
      --text-muted: #64748b;
      
      --border-subtle: rgba(56, 189, 248, 0.15);
      --border-glow: rgba(0, 240, 255, 0.4);
      --border-card: rgba(255, 255, 255, 0.08);

      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-deep);
      color: var(--text-body);
      line-height: 1.6;
      overflow-x: hidden;
      position: relative;
    }

    /* 高端科技背景点缀与网格 */
    body::before {
      content: "";
      position: fixed;
      top: 0; left: 0; width: 100vw; height: 100vh;
      background: 
        radial-gradient(circle at 15% 15%, rgba(0, 102, 255, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(0, 240, 255, 0.14) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
      pointer-events: none;
      z-index: 0;
    }

    .cyber-grid-overlay {
      position: fixed;
      top: 0; left: 0; width: 100%; height: 100%;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
      background-size: 50px 50px;
      pointer-events: none;
      z-index: 0;
    }

    /* 顶部原型控制器 HUD */
    #demo-switcher-bar {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(3, 7, 18, 0.92);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.22);
      box-shadow: 0 4px 30px rgba(0, 102, 255, 0.2);
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 24px;
      gap: 12px;
      flex-wrap: wrap;
    }
    .switcher-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-white);
      font-weight: 700;
      font-size: 14px;
      letter-spacing: 0.8px;
    }
    .brand-glow-tag {
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.3), rgba(0, 240, 255, 0.2));
      border: 1px solid var(--cyan);
      color: var(--cyan);
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 20px;
      box-shadow: 0 0 10px var(--cyan-glow);
      font-weight: 600;
    }
    .switcher-controls {
      display: flex;
      align-items: center;
      gap: 6px;
      background: rgba(15, 23, 42, 0.8);
      padding: 4px 6px;
      border-radius: 40px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      overflow-x: auto;
    }
    .switch-btn {
      padding: 6px 14px;
      font-size: 12px;
      font-weight: 600;
      border-radius: 30px;
      border: none;
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-body);
      background: transparent;
      white-space: nowrap;
    }
    .switch-btn:hover {
      color: var(--text-white);
      background: rgba(255, 255, 255, 0.08);
    }
    .switch-btn.active {
      color: #fff;
      background: linear-gradient(135deg, var(--blue-electric), #0284c7);
      box-shadow: 0 0 18px rgba(0, 102, 255, 0.55);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .admin-quick-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .admin-quick-nav select {
      background: rgba(6, 14, 36, 0.95);
      border: 1px solid var(--border-glow);
      color: var(--cyan);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 12px;
      outline: none;
      cursor: pointer;
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
    }
    .admin-quick-nav select option {
      background: #060e24;
      color: #fff;
    }

    /* 容器基准 */
    .app-container {
      position: relative;
      z-index: 1;
      min-height: calc(100vh - 60px);
    }

    /* 前台主包装 */
    #frontend-portal {
      display: block;
    }
    /* 视图页面容器 */
    .portal-view-section {
      display: none;
      animation: fadeInView 0.3s ease-in-out;
    }
    .portal-view-section.active {
      display: block;
    }
    @keyframes fadeInView {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* 官网科技导航 */
    .portal-nav {
      position: sticky;
      top: 0;
      z-index: 900;
      background: rgba(6, 14, 36, 0.82);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 14px 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .logo-container {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--blue-electric), var(--cyan));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 20px;
      color: #030712;
      box-shadow: 0 0 20px var(--cyan-glow);
    }
    .logo-text-box h1 {
      font-size: 18px;
      font-weight: 800;
      letter-spacing: 1px;
      color: var(--text-white);
      line-height: 1.1;
    }
    .logo-text-box p {
      font-size: 10px;
      letter-spacing: 1.8px;
      color: var(--cyan);
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      list-style: none;
    }
    .nav-links a {
      color: var(--text-title);
      text-decoration: none;
      font-size: 13px;
      font-weight: 500;
      transition: all 0.2s;
      position: relative;
      cursor: pointer;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--cyan);
      text-shadow: 0 0 10px var(--cyan-glow);
    }
    .portal-nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .lang-pill {
      font-size: 11px;
      padding: 4px 10px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-body);
    }
    .btn-tech {
      background: linear-gradient(135deg, var(--blue-electric), #00f0ff);
      color: #030712;
      font-weight: 700;
      padding: 9px 22px;
      border-radius: 30px;
      text-decoration: none;
      font-size: 13px;
      letter-spacing: 0.5px;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 0 22px rgba(0, 240, 255, 0.35);
      transition: all 0.3s;
    }
    .btn-tech:hover {
      box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
      transform: translateY(-1px);
    }
    .btn-tech-outline {
      background: rgba(0, 102, 255, 0.1);
      color: #38bdf8;
      border: 1px solid rgba(56, 189, 248, 0.4);
      font-weight: 600;
      padding: 9px 20px;
      border-radius: 30px;
      text-decoration: none;
      font-size: 13px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.3s;
    }
    .btn-tech-outline:hover {
      background: rgba(0, 102, 255, 0.25);
      border-color: var(--cyan);
      color: #fff;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
    }

    /* 科技文字渐变 */
    .text-gradient {
      background: linear-gradient(135deg, #00f0ff 10%, #38bdf8 50%, #818cf8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 通用容器与卡片 */
    .section-wrapper {
      max-width: 1320px;
      margin: 0 auto;
      padding: 80px 40px;
    }
    .section-header-center {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px;
    }
    .section-sub {
      color: var(--cyan);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 34px;
      color: var(--text-white);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
    }

    /* 业务卡片 Grid */
    .pillars-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    @media (max-width: 1100px) {
      .pillars-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 640px) {
      .pillars-grid { grid-template-columns: 1fr; }
    }

    .pillar-card {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: 18px;
      padding: 30px 24px;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      backdrop-filter: blur(12px);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .pillar-card::before {
      content: "";
      position: absolute;
      top: 0; left: 0; width: 100%; height: 3px;
      background: linear-gradient(90deg, transparent, var(--blue-electric), var(--cyan), transparent);
      opacity: 0;
      transition: opacity 0.3s;
    }
    .pillar-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-glow);
      background: var(--bg-card-hover);
      box-shadow: 0 16px 40px rgba(0, 102, 255, 0.2);
    }
    .pillar-card:hover::before {
      opacity: 1;
    }
    .pillar-num {
      position: absolute;
      top: 18px; right: 22px;
      font-size: 40px;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.04);
      line-height: 1;
      pointer-events: none;
    }
    .pillar-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
      box-shadow: 0 0 16px rgba(0, 240, 255, 0.15);
    }
    .pillar-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .pillar-desc {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .pillar-feature-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .pillar-feature-list li {
      font-size: 12px;
      color: var(--text-title);
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }
    .pillar-feature-list li .dot {
      width: 6px;
      height: 6px;
      background: var(--cyan);
      border-radius: 50%;
      margin-top: 6px;
      flex-shrink: 0;
      box-shadow: 0 0 8px var(--cyan);
    }
    .pillar-actions-box {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-top: auto;
    }

    /* 详情页专属样式规范 */
    .detail-hero-box {
      background: linear-gradient(180deg, rgba(6, 14, 36, 0.9) 0%, rgba(3, 7, 18, 0.95) 100%);
      border-bottom: 1px solid rgba(0, 240, 255, 0.15);
      padding: 60px 40px 70px;
      position: relative;
    }
    .detail-hero-inner {
      max-width: 1320px;
      margin: 0 auto;
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .breadcrumb-nav a {
      color: var(--cyan);
      text-decoration: none;
      cursor: pointer;
    }
    .breadcrumb-nav span.sep {
      color: rgba(255, 255, 255, 0.2);
    }
    .detail-hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 50px;
      align-items: center;
    }
    @media (max-width: 992px) {
      .detail-hero-grid { grid-template-columns: 1fr; }
    }
    .detail-tag-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 102, 255, 0.15);
      border: 1px solid rgba(0, 240, 255, 0.4);
      color: var(--cyan);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .detail-hero-title {
      font-size: 38px;
      color: #fff;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 18px;
    }
    .detail-hero-desc {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .detail-kpi-panel {
      background: rgba(8, 20, 48, 0.85);
      border: 1px solid var(--border-glow);
      border-radius: 18px;
      padding: 28px;
      box-shadow: 0 10px 30px rgba(0, 102, 255, 0.2);
    }
    .kpi-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-bottom: 22px;
      padding-bottom: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .kpi-item .kpi-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .kpi-item .kpi-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 详情页二级导航 */
    .detail-sub-nav-bar {
      position: sticky;
      top: 118px;
      z-index: 850;
      background: rgba(3, 7, 18, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(56, 189, 248, 0.2);
      padding: 10px 40px;
    }
    .detail-sub-nav-inner {
      max-width: 1320px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      gap: 12px;
      overflow-x: auto;
    }
    .subnav-link {
      color: var(--text-body);
      text-decoration: none;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 20px;
      transition: all 0.2s;
      white-space: nowrap;
      cursor: pointer;
    }
    .subnav-link:hover, .subnav-link.active {
      color: var(--cyan);
      background: rgba(0, 240, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.3);
    }

    /* 模块：服务内容 Delivery Cards */
    .delivery-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    @media (max-width: 992px) {
      .delivery-grid-3 { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 640px) {
      .delivery-grid-3 { grid-template-columns: 1fr; }
    }
    .delivery-card {
      background: rgba(8, 20, 48, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 26px;
      transition: all 0.3s;
    }
    .delivery-card:hover {
      border-color: var(--cyan);
      background: rgba(13, 31, 72, 0.85);
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(0, 102, 255, 0.15);
    }
    .delivery-card-icon {
      font-size: 26px;
      margin-bottom: 14px;
    }
    .delivery-card-title {
      font-size: 17px;
      color: #fff;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .delivery-card-desc {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .delivery-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .delivery-tag {
      font-size: 11px;
      background: rgba(0, 102, 255, 0.15);
      border: 1px solid rgba(56, 189, 248, 0.25);
      color: var(--blue-accent);
      padding: 2px 8px;
      border-radius: 6px;
    }

    /* 对比矩阵表 */
    .compare-matrix-box {
      background: rgba(8, 20, 48, 0.75);
      border: 1px solid var(--border-glow);
      border-radius: 18px;
      overflow: hidden;
      margin-top: 30px;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .compare-table th {
      background: rgba(6, 14, 36, 0.95);
      color: var(--text-title);
      font-weight: 700;
      font-size: 13px;
      letter-spacing: 0.5px;
    }
    .compare-table th.highlight-col, .compare-table td.highlight-col {
      background: rgba(0, 240, 255, 0.04);
      border-left: 1px solid rgba(0, 240, 255, 0.2);
      border-right: 1px solid rgba(0, 240, 255, 0.2);
    }
    .compare-table td strong {
      color: #fff;
    }

    /* 服务流程 Timeline */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 40px;
      position: relative;
    }
    @media (max-width: 992px) {
      .process-timeline { grid-template-columns: 1fr; }
    }
    .process-step-card {
      background: rgba(8, 20, 48, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 14px;
      padding: 22px 18px;
      position: relative;
    }
    .step-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      color: var(--cyan);
      background: rgba(0, 240, 255, 0.12);
      border: 1px solid rgba(0, 240, 255, 0.3);
      padding: 2px 10px;
      border-radius: 12px;
      margin-bottom: 12px;
    }
    .step-title {
      font-size: 15px;
      color: #fff;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 12px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 实战案例 Case Cards */
    .case-detail-card {
      background: rgba(8, 20, 48, 0.85);
      border: 1px solid var(--border-glow);
      border-radius: 18px;
      padding: 32px;
      margin-bottom: 28px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    @media (max-width: 992px) {
      .case-detail-card { grid-template-columns: 1fr; }
    }
    .case-client-tag {
      font-size: 12px;
      color: var(--cyan);
      font-weight: 600;
      margin-bottom: 8px;
      letter-spacing: 0.5px;
    }
    .case-headline {
      font-size: 22px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 14px;
      line-height: 1.4;
    }
    .case-body-text {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .case-metrics-display {
      background: rgba(4, 10, 27, 0.8);
      border: 1px solid rgba(0, 240, 255, 0.2);
      border-radius: 14px;
      padding: 24px;
    }
    .metric-compare-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .metric-compare-row:last-child {
      border-bottom: none;
    }
    .metric-name {
      font-size: 12px;
      color: var(--text-muted);
    }
    .metric-before {
      font-size: 13px;
      color: #ef4444;
      text-decoration: line-through;
    }
    .metric-after {
      font-size: 16px;
      font-weight: 800;
      color: #34d399;
    }

    /* 常见问题 Accordion */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    @media (max-width: 768px) {
      .faq-grid { grid-template-columns: 1fr; }
    }
    .faq-card {
      background: rgba(8, 20, 48, 0.65);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 14px;
      padding: 22px;
    }
    .faq-q {
      font-size: 15px;
      color: #fff;
      font-weight: 700;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-q span {
      color: var(--cyan);
      font-size: 16px;
    }
    .faq-a {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* 底部通用咨询 CTA */
    .cta-consult-box {
      margin: 80px auto;
      max-width: 1240px;
      background: radial-gradient(circle at 50% 50%, rgba(0, 102, 255, 0.25) 0%, rgba(6, 14, 36, 0.85) 100%);
      border: 1px solid var(--border-glow);
      border-radius: 24px;
      padding: 60px 40px;
      text-align: center;
      box-shadow: 0 0 50px rgba(0, 102, 255, 0.2);
    }
    .cta-consult-box h3 {
      font-size: 30px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-consult-box p {
      font-size: 15px;
      color: var(--text-body);
      max-width: 680px;
      margin: 0 auto 30px;
    }

    /* 页脚 */
    .portal-footer {
      background: #02050e;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 60px 40px 30px;
    }
    .footer-inner {
      max-width: 1320px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 50px;
    }
    @media (max-width: 900px) {
      .footer-inner { grid-template-columns: 1fr 1fr; }
    }
    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }
    .footer-col ul li a:hover {
      color: var(--cyan);
    }
    .footer-bottom {
      max-width: 1320px;
      margin: 0 auto;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* =========================================================================
       后台管理系统 (ADMIN CMS) 蓝色科技风样式 (包含 8 大独立页面)
       ========================================================================= */
    #admin-cms {
      display: none;
    }
    .admin-layout {
      display: grid;
      grid-template-columns: 260px 1fr;
      min-height: calc(100vh - 55px);
    }
    @media (max-width: 992px) {
      .admin-layout { grid-template-columns: 1fr; }
      .admin-sidebar { display: none; }
    }

    .admin-sidebar {
      background: rgba(4, 10, 27, 0.95);
      border-right: 1px solid rgba(0, 240, 255, 0.15);
      padding: 24px 18px;
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .sidebar-head h2 {
      font-size: 16px;
      color: #fff;
      font-weight: 800;
    }
    .sidebar-head p {
      font-size: 11px;
      color: var(--cyan);
      letter-spacing: 1px;
    }
    .admin-nav-group-title {
      font-size: 11px;
      color: var(--text-muted);
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
      padding-left: 10px;
    }
    .admin-menu-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .admin-menu-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      border-radius: 10px;
      color: var(--text-body);
      font-size: 13px;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s;
      border: 1px solid transparent;
    }
    .admin-menu-item:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.05);
    }
    .admin-menu-item.active {
      color: var(--cyan);
      background: rgba(0, 102, 255, 0.15);
      border-color: rgba(0, 240, 255, 0.3);
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
    }
    .admin-badge-count {
      margin-left: auto;
      font-size: 10px;
      padding: 2px 7px;
      border-radius: 10px;
      background: rgba(0, 240, 255, 0.15);
      color: var(--cyan);
      font-weight: 700;
    }

    .admin-main {
      background: #030712;
      padding: 32px 40px;
      overflow-y: auto;
    }
    .admin-top-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 28px;
      padding-bottom: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .admin-title-box h2 {
      font-size: 24px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 4px;
    }
    .admin-title-box p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 8 大独立后台面板视图切换 */
    .admin-view-panel {
      display: none;
      animation: fadeInView 0.25s ease-in-out;
    }
    .admin-view-panel.active {
      display: block;
    }

    /* 后台科技卡片与表格 */
    .tech-card {
      background: rgba(8, 20, 48, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 24px;
      margin-bottom: 24px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    .tech-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .tech-card-header h3 {
      font-size: 16px;
      color: #fff;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .kpi-stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 28px;
    }
    @media (max-width: 900px) {
      .kpi-stat-grid { grid-template-columns: repeat(2, 1fr); }
    }
    .kpi-stat-box {
      background: rgba(8, 20, 48, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 14px;
      padding: 20px;
      position: relative;
    }
    .kpi-stat-box .kpi-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1.1;
      margin: 8px 0 4px;
    }
    .kpi-stat-box .kpi-trend {
      font-size: 11px;
      color: #34d399;
      font-weight: 600;
    }

    .tech-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
    }
    .tech-table th, .tech-table td {
      padding: 14px 16px;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .tech-table th {
      background: rgba(4, 10, 27, 0.85);
      color: var(--text-muted);
      font-weight: 700;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .tech-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 3px 10px;
      border-radius: 12px;
      font-size: 11px;
      font-weight: 700;
    }
    .status-badge.live {
      background: rgba(16, 185, 129, 0.15);
      border: 1px solid rgba(16, 185, 129, 0.4);
      color: #34d399;
    }
    .status-badge.sync {
      background: rgba(0, 240, 255, 0.15);
      border: 1px solid rgba(0, 240, 255, 0.4);
      color: var(--cyan);
    }
    .status-badge.pending {
      background: rgba(245, 158, 11, 0.15);
      border: 1px solid rgba(245, 158, 11, 0.4);
      color: #fbbf24;
    }

    /* 表单组件 */
    .form-group-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-field label {
      font-size: 12px;
      color: var(--text-title);
      font-weight: 600;
    }
    .form-input, .form-textarea, .form-select {
      background: rgba(4, 10, 27, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 8px;
      padding: 10px 14px;
      color: #fff;
      font-size: 13px;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-input:focus, .form-textarea:focus, .form-select:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
    }

    /* HERO 科技首屏样式 (首页) */
    .hero-section {
      padding: 80px 40px 100px;
      max-width: 1320px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 60px;
      align-items: center;
    }
    @media (max-width: 992px) {
      .hero-section { grid-template-columns: 1fr; }
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(0, 240, 255, 0.08);
      border: 1px solid rgba(0, 240, 255, 0.3);
      padding: 6px 16px;
      border-radius: 30px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
    }
    .hero-badge-pulse {
      width: 8px;
      height: 8px;
      background: var(--cyan);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--cyan);
      animation: pulseGlow 1.8s infinite;
    }
    @keyframes pulseGlow {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.8); }
    }
    .hero-title {
      font-size: 48px;
      color: var(--text-white);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-ctas {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stat-number {
      font-size: 32px;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1.1;
      font-feature-settings: "tnum";
    }
    .stat-label {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 首屏 HUD 监控卡片 */
    .hero-hud-card {
      background: rgba(6, 14, 36, 0.85);
      border: 1px solid var(--border-glow);
      border-radius: 20px;
      padding: 28px;
      box-shadow: 0 0 40px rgba(0, 102, 255, 0.25);
      position: relative;
    }
    .hud-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hud-title {
      font-size: 13px;
      color: #fff;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hud-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 10px #10b981;
    }
    .hud-badge-php {
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 6px;
      background: rgba(99, 102, 241, 0.2);
      border: 1px solid rgba(99, 102, 241, 0.4);
      color: #a5b4fc;
      font-family: monospace;
    }

    /* GEO 实时模拟卡片 */
    .geo-deep-card {
      margin-top: 40px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.15) 0%, rgba(8, 20, 48, 0.85) 100%);
      border: 1px solid var(--border-glow);
      border-radius: 22px;
      padding: 36px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    @media (max-width: 900px) {
      .geo-deep-card { grid-template-columns: 1fr; }
    }
    .geo-engine-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }
    .engine-chip {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-title);
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 11px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .engine-chip.active {
      border-color: var(--cyan);
      color: var(--cyan);
      background: rgba(0, 240, 255, 0.08);
    }
/* =========================================================================
   移动端响应式与精致 UI 专项优化 (MOBILE OPTIMIZATION SUITE)
   ========================================================================= */

/* 移动端汉堡菜单按钮默认隐藏 (桌面端不显示) */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 32px;
  height: 28px;
  background: transparent;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 6px;
  padding: 5px;
  cursor: pointer;
  z-index: 1002;
  transition: all 0.3s;
}
.mobile-menu-btn .bar {
  width: 100%;
  height: 2px;
  background: var(--cyan);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu-btn.open .bar1 {
  transform: translateY(6px) rotate(45deg);
}
.mobile-menu-btn.open .bar2 {
  opacity: 0;
}
.mobile-menu-btn.open .bar3 {
  transform: translateY(-6px) rotate(-45deg);
}

/* 手机端吸底操作栏默认隐藏 (桌面端不显示) */
.mobile-bottom-bar {
  display: none;
}

/* 移动端响应式断点 992px */
@media (max-width: 992px) {
  .portal-nav {
    top: 0;
    padding: 12px 20px;
  }
  .portal-nav-actions .nav-cta-btn {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }

  /* 移动端下拉折叠菜单 */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(3, 7, 24, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 20px 24px;
    gap: 10px;
    z-index: 1000;
  }
  .nav-links.mobile-open {
    display: flex;
    animation: slideDownMenu 0.25s ease-out forwards;
  }
  @keyframes slideDownMenu {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links a {
    display: block;
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-title);
  }
  .nav-links a:hover, .nav-links a.active {
    background: rgba(0, 102, 255, 0.2);
    border-color: var(--cyan);
    color: var(--cyan);
  }
}

/* 手机端深度适配 768px 及以下 */
@media (max-width: 768px) {
  body {
    padding-bottom: 64px; /* 为吸底栏留出空间 */
  }

  /* 顶部导航 */
  .portal-nav {
    top: 0;
    padding: 10px 16px;
  }
  .logo-text-box h1 {
    font-size: 16px;
  }
  .logo-text-box p {
    font-size: 9px;
  }

  /* 首页 Hero 区域 */
  .hero-section {
    padding: 30px 16px 40px;
    gap: 30px;
  }
  .hero-badge {
    font-size: 11px;
    padding: 4px 10px;
    white-space: normal;
    line-height: 1.4;
  }
  .hero-title {
    font-size: 26px;
    line-height: 1.25;
    margin-bottom: 12px;
  }
  .hero-desc {
    font-size: 13.5px;
    line-height: 1.6;
    margin-bottom: 20px;
  }
  .hero-ctas {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  .hero-ctas .btn-tech, .hero-ctas .btn-tech-outline {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 14px;
    box-sizing: border-box;
  }
  .hero-stats-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 12px 8px;
    margin-top: 24px;
  }
  .stat-number {
    font-size: 18px;
  }
  .stat-label {
    font-size: 10px;
    transform: scale(0.95);
  }
  .hero-hud-card {
    padding: 16px;
    border-radius: 14px;
  }

  /* 通用 Section 包装 */
  .section-wrapper {
    padding: 36px 16px;
  }
  .section-title {
    font-size: 22px;
    line-height: 1.3;
  }
  .section-desc {
    font-size: 13.5px;
    line-height: 1.6;
  }

  /* 四大业务卡片 */
  .pillars-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .pillar-card {
    padding: 22px 18px;
    border-radius: 14px;
  }

  /* GEO 模拟卡片 */
  .geo-deep-card {
    padding: 20px 16px;
    border-radius: 16px;
    margin: 20px 0;
  }

  /* 表格横向滚动容器支持 */
  .table-responsive, .compare-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 10px;
    margin: 16px 0;
  }
  .compare-table {
    min-width: 580px; /* 保证表格列不挤压，可水平滑动 */
  }

  /* 案例卡片 */
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .case-card {
    padding: 18px 16px;
  }

  /* 咨询表单 */
  .cta-consult-box {
    padding: 24px 16px;
    border-radius: 16px;
    margin: 24px 12px;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 详情页专属移动端样式 */
  .detail-hero-box {
    padding: 24px 16px;
    margin: 12px 12px 20px;
    border-radius: 14px;
  }
  .detail-hero-title {
    font-size: 22px;
    line-height: 1.3;
    margin-bottom: 12px;
  }
  .detail-hero-desc {
    font-size: 13px;
    line-height: 1.6;
  }
  .detail-subnav-sticky {
    top: 52px;
    padding: 8px 12px;
    overflow-x: auto;
    white-space: nowrap;
    gap: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
  }
  .detail-subnav-sticky::-webkit-scrollbar {
    display: none; /* Chrome Safari */
  }
  .detail-subnav-link {
    padding: 6px 12px;
    font-size: 12px;
    flex-shrink: 0;
  }
  .detail-content-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .process-steps-row {
    flex-direction: column;
    gap: 12px;
  }

  /* 页脚 */
  .portal-footer {
    padding: 30px 16px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* 手机端吸底快速操作栏 */
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 54px;
    background: rgba(3, 7, 24, 0.96);
    backdrop-filter: blur(16px);
    border-top: 1px solid rgba(0, 240, 255, 0.25);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
    z-index: 999;
  }
  .mob-bar-item {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
  }
  .mob-bar-item.call-item {
    background: rgba(0, 102, 255, 0.15);
    color: #fff;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }
  .mob-bar-item.call-item svg {
    color: var(--cyan);
  }
  .mob-bar-item.consult-item {
    background: linear-gradient(135deg, var(--blue-electric), var(--cyan));
    color: #fff;
  }
}

    /* 底部通用咨询 CTA (增强表单版) */
    .cta-consult-box {
      margin: 80px auto 60px;
      max-width: 1180px;
      background: radial-gradient(circle at 50% 30%, rgba(0, 102, 255, 0.28) 0%, rgba(6, 14, 36, 0.95) 100%);
      border: 1px solid var(--border-glow);
      border-radius: 24px;
      padding: 50px 36px;
      text-align: center;
      box-shadow: 0 0 60px rgba(0, 102, 255, 0.25);
      position: relative;
      overflow: hidden;
    }
    .cta-badge {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(0, 240, 255, 0.12);
      border: 1px solid rgba(0, 240, 255, 0.35);
      border-radius: 20px;
      color: var(--cyan);
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .cta-consult-box h3 {
      font-size: 28px;
      color: #fff;
      font-weight: 800;
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .cta-consult-box p {
      font-size: 14px;
      color: var(--text-body);
      max-width: 720px;
      margin: 0 auto 28px;
      line-height: 1.7;
    }
    .cta-form-wrapper {
      max-width: 820px;
      margin: 0 auto;
    }
    .cta-form-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 12px;
      margin-bottom: 16px;
    }
    .cta-form-grid .form-input, .cta-form-grid .form-select {
      background: rgba(3, 7, 24, 0.85);
      border: 1px solid rgba(0, 240, 255, 0.25);
      color: #fff;
      padding: 12px 14px;
      border-radius: 8px;
      width: 100%;
      font-size: 13.5px;
      outline: none;
      box-sizing: border-box;
      transition: all 0.2s;
    }
    .cta-form-grid .form-input:focus, .cta-form-grid .form-select:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 14px var(--cyan-glow);
    }
    .cta-submit-btn {
      padding: 14px 40px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 20px rgba(0, 102, 255, 0.4);
    }
    .cta-privacy-note {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 12px;
    }

    /* 官网标准高科技页脚 */
    .portal-footer {
      background: #02050e;
      border-top: 1px solid rgba(0, 240, 255, 0.15);
      padding: 60px 24px 30px;
      position: relative;
      z-index: 10;
      width: 100%;
      box-sizing: border-box;
    }
    .footer-inner, .footer-grid {
      max-width: 1280px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
      text-align: left;
    }
    @media (max-width: 1100px) {
      .footer-inner, .footer-grid {
        grid-template-columns: 1.2fr 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 768px) {
      .footer-inner, .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }

    /* 栏目 1: 品牌与介绍 */
    .footer-brand-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .footer-logo-img {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      box-shadow: 0 0 12px var(--cyan-glow);
      flex-shrink: 0;
    }
    .footer-company-name {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin: 0;
      line-height: 1.2;
    }
    .footer-company-en {
      color: var(--cyan);
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 0.8px;
      margin-top: 3px;
    }
    .footer-desc-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .footer-trust-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 14px;
    }
    .trust-chip {
      background: rgba(0, 102, 255, 0.12);
      border: 1px solid rgba(0, 240, 255, 0.2);
      color: var(--blue-accent);
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
    }
    .footer-domain-note {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 通用列标题与列表 */
    .footer-col-title {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col-title::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--cyan);
      box-shadow: 0 0 6px var(--cyan);
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 13px;
      transition: all 0.2s;
      display: inline-block;
    }
    .footer-links-list a:hover {
      color: var(--cyan);
      transform: translateX(3px);
    }

    /* 栏目 4: 联系方式 */
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 13px;
    }
    .contact-icon {
      color: var(--cyan);
      margin-top: 3px;
      flex-shrink: 0;
    }
    .contact-label {
      color: var(--text-muted);
    }
    .contact-val {
      color: var(--text-title);
      text-decoration: none;
      transition: color 0.2s;
    }
    .contact-val:hover {
      color: var(--cyan);
    }
    .contact-val.highlight {
      color: var(--cyan);
      font-weight: 700;
      font-size: 15px;
    }
    .footer-promise-card {
      margin-top: 14px;
      padding: 10px 12px;
      background: rgba(0, 102, 255, 0.1);
      border: 1px solid rgba(0, 240, 255, 0.25);
      border-radius: 6px;
      font-size: 11px;
      color: var(--blue-accent);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .promise-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 6px var(--cyan);
      flex-shrink: 0;
    }

    /* 页脚底部版权条 */
    .footer-bottom {
      max-width: 1280px;
      margin: 0 auto;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 12px;
      color: var(--text-muted);
    }
    .icp-link {
      color: var(--text-muted);
      text-decoration: none;
      margin-left: 10px;
      transition: color 0.2s;
    }
    .icp-link:hover {
      color: var(--cyan);
    }
    .footer-meta-links {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .footer-meta-links a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-meta-links a:hover {
      color: var(--cyan);
    }
    .footer-meta-links .sep {
      color: rgba(255, 255, 255, 0.15);
    }
    .tech-tag {
      color: var(--blue-accent);
      font-size: 11px;
      padding: 2px 6px;
      background: rgba(0, 102, 255, 0.15);
      border-radius: 4px;
    }

/* =========================================================================
   移动端紧凑排版与微调补丁 (COMPACT MOBILE ENHANCEMENTS)
   ========================================================================= */

.home-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.responsive-3col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.pillar-tag {
  font-size: 11px;
  padding: 3px 8px;
  background: rgba(0, 240, 255, 0.06);
  border: 1px solid rgba(0, 240, 255, 0.18);
  border-radius: 4px;
  color: var(--text-title);
  white-space: nowrap;
}

.btn-full {
  width: 100%;
  justify-content: center;
  text-align: center;
  box-sizing: border-box;
}

.case-result-badge {
  font-size: 12px;
  color: var(--cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.22);
  border-radius: 6px;
  padding: 8px 12px;
  margin-top: 12px;
  line-height: 1.5;
}

.geo-sim-box {
  background: rgba(4, 10, 27, 0.85);
  border: 1px solid var(--border-glow);
  border-radius: 16px;
  padding: 20px;
}

.geo-sim-quote {
  background: rgba(0, 240, 255, 0.05);
  border-left: 3px solid var(--cyan);
  padding: 12px 14px;
  font-size: 12px;
  color: var(--text-title);
  line-height: 1.65;
  border-radius: 4px;
}

/* 屏幕宽度 <= 992px */
@media (max-width: 992px) {
  .responsive-3col-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .home-cases-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

/* 屏幕宽度 <= 768px (手机端精简与紧凑排版) */
@media (max-width: 768px) {
  /* 解决水平溢出 */
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw;
  }

  /* 缩短全局各 Section 上下留白，紧凑布局 */
  .section-wrapper {
    padding: 24px 14px;
  }
  .section-header-center {
    margin-bottom: 18px;
    padding: 0 4px;
  }
  .section-sub {
    font-size: 10px;
    margin-bottom: 4px;
    letter-spacing: 0.8px;
  }
  .section-title {
    font-size: 19px;
    line-height: 1.3;
    margin-bottom: 6px;
  }
  .section-desc {
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-muted);
  }

  /* 首页四大业务卡片精简紧凑 */
  .pillars-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .pillar-card {
    padding: 16px 14px;
    border-radius: 12px;
  }
  .pillar-icon-box {
    width: 36px;
    height: 36px;
    font-size: 18px;
    margin-bottom: 8px;
  }
  .pillar-title {
    font-size: 17px;
    margin-bottom: 4px;
  }
  .pillar-desc {
    font-size: 12.5px;
    line-height: 1.5;
    margin-bottom: 10px;
  }
  .pillar-tags-row {
    gap: 4px;
    margin-bottom: 12px;
  }
  .pillar-tag {
    font-size: 10.5px;
    padding: 2px 6px;
  }

  /* 案例卡片紧凑排版，彻底解决两列挤压横向溢出问题 */
  .home-cases-grid {
    grid-template-columns: 1fr;
    gap: 14px;
    width: 100%;
  }
  .case-detail-card {
    padding: 16px 14px;
    border-radius: 12px;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 0;
  }
  .case-client-tag {
    font-size: 11px;
    margin-bottom: 4px;
  }
  .case-headline {
    font-size: 16px;
    line-height: 1.35;
    margin-bottom: 8px;
  }
  .case-body-text {
    font-size: 12.5px;
    line-height: 1.55;
    margin-bottom: 8px;
  }
  .case-result-badge {
    font-size: 11px;
    padding: 6px 10px;
    margin-top: 8px;
  }
  .case-metrics-display {
    padding: 10px 8px;
    border-radius: 8px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    background: rgba(4, 10, 27, 0.85);
  }
  .metric-compare-row {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2px 0;
    border-bottom: none;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
  }
  .metric-compare-row:last-child {
    border-right: none;
  }
  .metric-name {
    font-size: 10px;
    margin-bottom: 2px;
  }
  .metric-before {
    font-size: 10.5px;
    margin-bottom: 1px;
  }
  .metric-after {
    font-size: 13px;
  }

  /* GEO 模拟卡片紧凑 */
  .geo-deep-card {
    padding: 16px 12px;
    border-radius: 12px;
    margin: 14px 0;
    gap: 14px;
  }
  .geo-engine-badges {
    gap: 6px;
    margin-top: 10px;
  }
  .engine-chip {
    padding: 3px 8px;
    font-size: 10px;
  }
  .geo-sim-box {
    padding: 12px;
    border-radius: 10px;
  }

  /* 咨询 CTA 区域紧凑 */
  .cta-consult-box {
    margin: 28px 12px;
    padding: 22px 14px;
    border-radius: 14px;
  }
  .cta-consult-box h3 {
    font-size: 20px;
    margin-bottom: 8px;
  }
  .cta-consult-box p {
    font-size: 12.5px;
    margin-bottom: 16px;
  }
  .cta-form-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 12px;
  }
  .cta-submit-btn {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
  }
}

/* =========================================================================
   移动端极端紧凑与商业美观度提升补丁 (HIGH-END COMPACT MOBILE SUITE)
   ========================================================================= */

@media (max-width: 768px) {
  /* 页面内边距与留白极致收紧 */
  .hero-section {
    padding: 20px 14px 26px !important;
    gap: 16px !important;
  }
  .hero-title {
    font-size: 23px !important;
    line-height: 1.28 !important;
    margin-bottom: 10px !important;
  }
  .hero-desc {
    font-size: 13px !important;
    line-height: 1.55 !important;
    margin-bottom: 14px !important;
  }
  .hero-stats-row {
    padding: 10px 6px !important;
    margin-top: 14px !important;
    gap: 6px !important;
  }
  .stat-number {
    font-size: 17px !important;
  }
  .stat-label {
    font-size: 10px !important;
  }
  
  /* 隐藏 HUD 大进度条，改为紧凑状态条 */
  .hero-hud-card {
    padding: 12px 14px !important;
    border-radius: 12px !important;
    margin-top: 6px !important;
  }
  .hero-hud-card .hud-bar-track {
    display: none !important;
  }
  .hero-hud-card .hud-metric-row {
    padding: 3px 0 !important;
    margin-bottom: 2px !important;
  }
  .hero-hud-card .hud-metric-label {
    font-size: 11px !important;
  }

  /* 板块 Section */
  .section-wrapper {
    padding: 22px 12px !important;
  }
  .section-header-center {
    margin-bottom: 14px !important;
  }
  .section-title {
    font-size: 19px !important;
    line-height: 1.3 !important;
    margin-bottom: 6px !important;
  }
  .section-desc {
    font-size: 12.5px !important;
    line-height: 1.5 !important;
  }

  /* 四大板块卡片紧凑化 */
  .pillars-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .pillar-card {
    padding: 16px 14px !important;
    border-radius: 12px !important;
    gap: 10px !important;
  }
  .pillar-title {
    font-size: 16px !important;
    margin-bottom: 4px !important;
  }
  .pillar-desc {
    font-size: 12.5px !important;
    line-height: 1.5 !important;
    margin-bottom: 8px !important;
  }
  .pillar-tags-row {
    gap: 4px !important;
    margin-bottom: 10px !important;
  }
  .pillar-tag {
    font-size: 10.5px !important;
    padding: 2px 6px !important;
  }
  .btn-full {
    padding: 9px 12px !important;
    font-size: 13px !important;
  }

  /* GEO 模拟卡片 */
  .geo-deep-card {
    padding: 16px 12px !important;
    border-radius: 12px !important;
    margin: 14px 0 !important;
    gap: 14px !important;
  }

  /* 案例卡片紧凑化 */
  .home-cases-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .case-detail-card {
    padding: 16px 14px !important;
    border-radius: 12px !important;
    gap: 12px !important;
  }
  .case-headline {
    font-size: 15.5px !important;
    line-height: 1.35 !important;
    margin-bottom: 6px !important;
  }
  .case-body-text {
    font-size: 12.5px !important;
    line-height: 1.55 !important;
    margin-bottom: 8px !important;
  }
  .case-result-badge {
    font-size: 11px !important;
    padding: 5px 8px !important;
    line-height: 1.4 !important;
  }
  .case-metrics-display {
    padding: 10px 8px !important;
    gap: 6px !important;
    border-radius: 8px !important;
  }
  .metric-name {
    font-size: 9.5px !important;
  }
  .metric-before {
    font-size: 10px !important;
  }
  .metric-after {
    font-size: 12px !important;
  }

  /* 联系页面专属响应式 */
  .contact-cards-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  .contact-info-card {
    padding: 14px 12px !important;
  }
  .contact-card-label {
    font-size: 11px;
    color: var(--cyan);
    font-weight: 600;
    margin-bottom: 2px;
  }
  .contact-card-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
    word-break: break-all;
  }
  .contact-card-desc {
    font-size: 11.5px;
    color: var(--text-muted);
    margin: 0;
  }
  .company-intro-box {
    padding: 18px 14px !important;
    border-radius: 12px !important;
  }

  /* 页脚紧凑化 */
  .portal-footer {
    padding: 24px 14px 18px !important;
  }
  .footer-inner, .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 18px !important;
    margin-bottom: 18px !important;
  }
  .footer-company-name {
    font-size: 15px !important;
  }
  .footer-desc-text {
    font-size: 12px !important;
    line-height: 1.6 !important;
    margin-bottom: 10px !important;
  }
  .footer-col-title {
    font-size: 13.5px !important;
    margin-bottom: 10px !important;
  }
  .footer-links-list li {
    margin-bottom: 6px !important;
    font-size: 12px !important;
  }
  .footer-contact-item {
    margin-bottom: 6px !important;
    font-size: 12px !important;
  }
  .footer-promise-card {
    padding: 7px 9px !important;
    font-size: 10px !important;
    margin-top: 8px !important;
  }
  .footer-bottom {
    padding-top: 14px !important;
    font-size: 10.5px !important;
    gap: 8px !important;
  }

  /* 详情页 Header */
  .detail-hero-box {
    padding: 20px 14px !important;
    margin: 10px 10px 16px !important;
    border-radius: 12px !important;
  }
  .detail-hero-title {
    font-size: 21px !important;
    line-height: 1.3 !important;
    margin-bottom: 8px !important;
  }
  .detail-hero-desc {
    font-size: 12.5px !important;
    line-height: 1.55 !important;
  }
}

/* =========================================================================
   2026-11-13 手机端精简与紧凑度极致优化补丁 (ULTRA COMPACT MOBILE SUITE)
   ========================================================================= */

@media (max-width: 768px) {
  /* 隐藏桌面端大卡片与冗余长图，极速瘦身 */
  .desktop-only-hud {
    display: none !important;
  }

  /* 首屏 Hero 区域 */
  .hero-section {
    padding: 20px 12px 16px !important;
    gap: 0 !important;
  }
  .hero-badge {
    font-size: 10.5px !important;
    padding: 3px 8px !important;
    margin-bottom: 10px !important;
  }
  .hero-title {
    font-size: 22px !important;
    line-height: 1.25 !important;
    margin-bottom: 8px !important;
  }
  .hero-desc {
    font-size: 12.5px !important;
    line-height: 1.5 !important;
    margin-bottom: 14px !important;
  }
  .hero-ctas {
    gap: 8px !important;
    margin-bottom: 14px !important;
  }
  .hero-ctas .btn-tech, .hero-ctas .btn-tech-outline {
    padding: 10px 14px !important;
    font-size: 13px !important;
  }
  .hero-stats-row {
    padding: 8px 4px !important;
    margin-top: 10px !important;
    gap: 4px !important;
  }
  .stat-number {
    font-size: 16px !important;
  }
  .stat-label {
    font-size: 9.5px !important;
  }

  /* 区块间距压缩 */
  .section-wrapper {
    padding: 18px 10px !important;
  }
  .section-header-center {
    margin-bottom: 12px !important;
  }
  .section-sub {
    font-size: 9.5px !important;
    margin-bottom: 3px !important;
  }
  .section-title {
    font-size: 18px !important;
    margin-bottom: 4px !important;
    line-height: 1.3 !important;
  }
  .section-desc {
    font-size: 11.5px !important;
    line-height: 1.45 !important;
  }

  /* 四大核心业务板块：手机端 2x2 紧凑精致网格 */
  .pillars-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  .pillar-card {
    padding: 12px 10px !important;
    border-radius: 10px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    gap: 6px !important;
  }
  .pillar-card .pillar-icon-box {
    width: 30px !important;
    height: 30px !important;
    font-size: 15px !important;
    margin-bottom: 2px !important;
  }
  .pillar-card .pillar-num {
    top: 6px !important;
    right: 8px !important;
    font-size: 11px !important;
  }
  .pillar-card .pillar-title {
    font-size: 13.5px !important;
    font-weight: 700 !important;
    margin-bottom: 2px !important;
    line-height: 1.25 !important;
  }
  .pillar-card .pillar-desc {
    font-size: 11px !important;
    line-height: 1.4 !important;
    color: #94a3b8 !important;
    margin-bottom: 6px !important;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .pillar-card .pillar-tags-row {
    display: none !important;
  }
  .pillar-card .pillar-actions-box a {
    font-size: 11px !important;
    padding: 6px 4px !important;
    border-radius: 6px !important;
    text-align: center !important;
    justify-content: center !important;
  }

  /* GEO 模拟卡片紧凑化 */
  .geo-deep-card {
    padding: 14px 12px !important;
    border-radius: 10px !important;
    margin: 12px 0 !important;
    gap: 10px !important;
  }
  .geo-engine-badges {
    gap: 4px !important;
    margin-top: 8px !important;
  }
  .engine-chip {
    padding: 3px 8px !important;
    font-size: 10px !important;
    border-radius: 12px !important;
  }
  .geo-sim-box {
    padding: 10px !important;
    border-radius: 8px !important;
  }
  .geo-sim-quote {
    font-size: 11px !important;
    line-height: 1.5 !important;
    padding: 6px 8px !important;
  }

  /* 实战案例紧凑化 */
  .home-cases-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  .case-detail-card {
    padding: 12px 10px !important;
    border-radius: 10px !important;
    gap: 6px !important;
  }
  .case-client-tag {
    font-size: 9.5px !important;
    margin-bottom: 2px !important;
  }
  .case-headline {
    font-size: 14px !important;
    line-height: 1.3 !important;
    margin-bottom: 4px !important;
  }
  .case-body-text {
    font-size: 11.5px !important;
    line-height: 1.45 !important;
    margin-bottom: 4px !important;
  }
  .case-result-badge {
    font-size: 10.5px !important;
    padding: 4px 6px !important;
    margin-top: 4px !important;
  }
  .case-metrics-display {
    padding: 6px 4px !important;
    border-radius: 6px !important;
    margin-top: 4px !important;
    gap: 4px !important;
  }
  .metric-name {
    font-size: 9px !important;
  }
  .metric-before {
    font-size: 9.5px !important;
  }
  .metric-after {
    font-size: 11.5px !important;
  }

  /* 咨询表单紧凑化 */
  .cta-consult-box {
    padding: 16px 12px !important;
    margin: 14px 8px !important;
    border-radius: 10px !important;
  }
  .cta-consult-box h3 {
    font-size: 16px !important;
    line-height: 1.3 !important;
    margin-bottom: 4px !important;
  }
  .cta-consult-box p {
    font-size: 11.5px !important;
    line-height: 1.4 !important;
    margin-bottom: 10px !important;
  }
  .cta-form-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }
  .cta-form-grid input, .cta-form-grid select {
    padding: 8px 10px !important;
    font-size: 12px !important;
  }
  .cta-submit-btn {
    padding: 10px 14px !important;
    font-size: 12.5px !important;
  }

  /* 底部 Footer 极限紧凑与对齐 */
  .portal-footer {
    padding: 20px 12px 14px !important;
  }
  .footer-inner, .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
    margin-bottom: 14px !important;
  }
  .footer-brand-header {
    margin-bottom: 6px !important;
    gap: 8px !important;
  }
  .footer-logo-img {
    width: 28px !important;
    height: 28px !important;
  }
  .footer-company-name {
    font-size: 14px !important;
  }
  .footer-company-en {
    font-size: 9px !important;
  }
  .footer-desc-text {
    font-size: 11px !important;
    line-height: 1.5 !important;
    margin-bottom: 8px !important;
  }
  .footer-trust-chips {
    gap: 4px !important;
    margin-bottom: 8px !important;
  }
  .trust-chip {
    font-size: 9.5px !important;
    padding: 2px 6px !important;
  }
  .footer-col-title {
    font-size: 13px !important;
    margin-bottom: 8px !important;
    padding-bottom: 4px !important;
  }
  .footer-links-list li {
    margin-bottom: 4px !important;
    font-size: 11px !important;
  }
  .footer-contact-item {
    margin-bottom: 4px !important;
    font-size: 11.5px !important;
    gap: 6px !important;
  }
  .contact-val.highlight {
    font-size: 13.5px !important;
  }
  .footer-promise-card {
    padding: 6px 8px !important;
    font-size: 9.5px !important;
    margin-top: 6px !important;
  }
  .footer-bottom {
    padding-top: 10px !important;
    font-size: 10px !important;
    gap: 4px !important;
    flex-direction: column !important;
    text-align: center !important;
  }
}

/* =========================================================================
   高分屏与移动端高锐利度 Logo 规范 (RETINA-CRISP LOGO SUITE)
   ========================================================================= */
.brand-logo-img {
  width: 38px;
  height: 38px;
  display: block;
  object-fit: contain;
  border-radius: 50%;
  border: none !important;
  padding: 0 !important;
  background: transparent !important;
  filter: drop-shadow(0 2px 6px rgba(0, 102, 255, 0.45));
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transition: transform 0.25s ease;
}
.brand-logo-img:hover {
  transform: scale(1.05);
}
@media (max-width: 768px) {
  .brand-logo-img {
    width: 34px !important;
    height: 34px !important;
    filter: drop-shadow(0 1px 4px rgba(0, 102, 255, 0.4)) !important;
  }
}
.footer-logo-img {
  width: 38px;
  height: 38px;
  display: block;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 2px 6px rgba(0, 102, 255, 0.45));
  image-rendering: -webkit-optimize-contrast;
}
@media (max-width: 768px) {
  .footer-logo-img {
    width: 30px !important;
    height: 30px !important;
  }
}