/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --bg-card: #161B22;
      --bg-card-alt: #1F242C;
      --bg-surface: #12161F;
      --cyan: #00F2FE;
      --purple: #7928CA;
      --orange: #FF4B2B;
      --text-main: #E2E8F0;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-color: rgba(0, 242, 254, 0.15);
      --border-glow: rgba(0, 242, 254, 0.4);
      --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-glow: 0 4px 20px rgba(0, 242, 254, 0.12);
      --transition: all 0.25s ease-in-out;
    }

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

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

    body {
      font-family: var(--font-family);
      line-height: 1.7;
      overflow-x: hidden;
      background-color: var(--bg-dark);
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部微型信息条 */
    .top-bar {
      background-color: #07090D;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.2); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(11, 14, 20, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #FFFFFF;
    }
    .logo-badge {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--cyan), var(--purple));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0B0E14;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--cyan);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: linear-gradient(135deg, var(--cyan), #00A6B2);
      color: #0B0E14;
      font-weight: 700;
      font-size: 14px;
      border-radius: var(--radius-sm);
      box-shadow: 0 2px 12px rgba(0, 242, 254, 0.3);
      cursor: pointer;
      border: none;
    }
    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 20px rgba(0, 242, 254, 0.5);
    }

    /* 板块通用 */
    section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-surface);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .section-heading-wrap {
      max-width: 800px;
      margin: 0 auto 56px;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--cyan);
      margin-bottom: 12px;
      padding: 4px 12px;
      background: rgba(0, 242, 254, 0.08);
      border-radius: 20px;
      border: 1px solid rgba(0, 242, 254, 0.2);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 板块1：Hero 首屏 (预约到店/时段选择视觉) */
    .hero-section {
      padding: 80px 0 100px;
      background: radial-gradient(circle at 80% 20%, rgba(121, 40, 202, 0.2) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(0, 242, 254, 0.15) 0%, transparent 40%),
                  url('/assets/images/66bf5b24aced215f.jpg') center/cover no-repeat;
      position: relative;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: rgba(11, 14, 20, 0.88);
      backdrop-filter: blur(4px);
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #FFFFFF, var(--cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .hero-features-inline {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .feat-tag {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
    }
    .feat-tag-icon {
      color: var(--cyan);
      font-weight: bold;
    }
    /* 首屏预约卡片 */
    .booking-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5), var(--shadow-glow);
    }
    .booking-title {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .booking-sub {
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 24px;
    }
    .booking-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }
    .form-control {
      background: #0B0E14;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.25);
    }
    .time-slot-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-top: 4px;
    }
    .time-slot-btn {
      padding: 8px 4px;
      text-align: center;
      background: #0B0E14;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-sm);
      font-size: 12px;
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .time-slot-btn:hover,
    .time-slot-btn.active {
      border-color: var(--cyan);
      background: rgba(0, 242, 254, 0.08);
      color: var(--cyan);
    }
    .btn-submit {
      margin-top: 8px;
      padding: 14px;
      background: linear-gradient(90deg, var(--cyan), #00B4D8);
      border: none;
      border-radius: var(--radius-sm);
      color: #0B0E14;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(0, 242, 254, 0.35);
      transition: var(--transition);
    }
    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 242, 254, 0.5);
    }

    /* 板块2：全球覆盖 (Global Infrastructure) */
    .global-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }
    .global-stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }
    .global-stat-val {
      font-size: 36px;
      font-weight: 800;
      color: var(--cyan);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .global-stat-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 板块3：场景演示 (Scenario Cards) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-5px);
      border-color: var(--cyan);
      box-shadow: var(--shadow-glow);
    }
    .scenario-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .scenario-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scenario-card:hover .scenario-thumb img {
      transform: scale(1.06);
    }
    .scenario-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--cyan);
      color: var(--cyan);
      font-size: 12px;
      padding: 3px 10px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .scenario-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scenario-body h3 {
      font-size: 19px;
      color: #FFFFFF;
      margin-bottom: 12px;
    }
    .scenario-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex: 1;
    }
    .scenario-meta {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-dim);
    }

    /* 板块4：本地化能力 (Localization & Edge Computing) */
    .loc-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .loc-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 12px 30px rgba(0,0,0,0.4);
    }
    .loc-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .loc-item {
      display: flex;
      gap: 16px;
      background: var(--bg-card);
      padding: 20px;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--cyan);
    }
    .loc-item h4 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .loc-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块5：客户案例 (Case Studies) */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .case-header {
      margin-bottom: 16px;
    }
    .case-client {
      font-size: 17px;
      font-weight: 700;
      color: #FFFFFF;
    }
    .case-genre {
      font-size: 12px;
      color: var(--cyan);
      display: inline-block;
      margin-top: 4px;
    }
    .case-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .case-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      background: #0B0E14;
      padding: 12px;
      border-radius: var(--radius-sm);
      text-align: center;
    }
    .case-metric-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--orange);
    }
    .case-metric-txt {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 板块6：卖点三连 (Core Selling Points) */
    .selling-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .selling-card {
      background: linear-gradient(180deg, var(--bg-card) 0%, rgba(22, 27, 34, 0.4) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      text-align: center;
      transition: var(--transition);
    }
    .selling-card:hover {
      border-color: var(--cyan);
      box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
      transform: translateY(-4px);
    }
    .selling-icon {
      width: 60px;
      height: 60px;
      margin: 0 auto 20px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid var(--cyan);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--cyan);
      font-size: 24px;
      font-weight: 800;
    }
    .selling-card h3 {
      font-size: 20px;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .selling-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块7：对比差异 (Comparison Table) */
    .compare-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      background: var(--bg-card);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th,
    .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 14px;
    }
    .compare-table th {
      background: #0B0E14;
      color: #FFFFFF;
      font-weight: 600;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-table td.highlight {
      background: rgba(0, 242, 254, 0.03);
      color: var(--cyan);
      font-weight: 600;
    }

    /* 板块8：深色理念与引擎架构 (Dark Engine Architecture) */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .arch-card {
      background: #07090D;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .arch-card::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--cyan), var(--purple));
      border-radius: var(--radius-md) var(--radius-md) 0 0;
    }
    .arch-num {
      font-size: 12px;
      color: var(--cyan);
      font-weight: 700;
      margin-bottom: 8px;
    }
    .arch-card h4 {
      font-size: 17px;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .arch-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块9：资讯证据 (News & Insights) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 8px;
    }
    .news-body h3 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
    }

    /* 板块10：常见异议拆解 (FAQ Accordion) */
    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      color: #FFFFFF;
      font-size: 16px;
      user-select: none;
    }
    .faq-toggle {
      color: var(--cyan);
      font-size: 20px;
      transition: transform 0.25s ease;
    }
    .faq-body {
      padding: 0 24px 20px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.75;
      display: none;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      margin-top: 4px;
      padding-top: 16px;
    }
    .faq-item.active .faq-body {
      display: block;
    }
    .faq-item.active .faq-toggle {
      transform: rotate(45deg);
    }

    /* 板块11：服务保障条 (Service Guarantee Strip) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-box {
      background: linear-gradient(145deg, rgba(22, 27, 34, 0.9), rgba(11, 14, 20, 0.95));
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      position: relative;
    }
    .guarantee-icon {
      font-size: 26px;
      color: var(--cyan);
      margin-bottom: 12px;
      display: inline-block;
    }
    .guarantee-box h4 {
      font-size: 16px;
      color: #FFFFFF;
      margin-bottom: 8px;
    }
    .guarantee-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块12：联系销售与最终行动区 (Final CTA & Contact Sales) */
    .cta-card-box {
      background: radial-gradient(circle at 50% 0%, rgba(0, 242, 254, 0.18) 0%, rgba(11, 14, 20, 0.98) 75%),
                  linear-gradient(180deg, #161B22 0%, #0B0E14 100%);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), var(--shadow-glow);
      max-width: 900px;
      margin: 0 auto;
    }
    .cta-card-box h2 {
      font-size: 32px;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .cta-card-box p {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto 32px;
      line-height: 1.8;
    }
    .cta-form-row {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 580px;
      margin: 0 auto 20px;
      flex-wrap: wrap;
    }
    .cta-input {
      flex: 1;
      min-width: 240px;
      padding: 14px 18px;
      background: #07090D;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      font-size: 14px;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--cyan);
    }
    .cta-btn-main {
      padding: 14px 28px;
      background: linear-gradient(135deg, var(--cyan), #00A6B2);
      color: #0B0E14;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(0, 242, 254, 0.35);
      transition: var(--transition);
      white-space: nowrap;
    }
    .cta-btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 242, 254, 0.5);
    }
    .cta-contact-details {
      display: flex;
      justify-content: center;
      gap: 32px;
      font-size: 13px;
      color: var(--text-dim);
      margin-top: 24px;
      flex-wrap: wrap;
    }
    .cta-contact-details span {
      color: var(--text-muted);
    }

    /* 底部固定转化条 (Floating Bar) */
    .bottom-floating-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(11, 14, 20, 0.95);
      border-top: 1px solid var(--border-glow);
      backdrop-filter: blur(10px);
      z-index: 990;
      padding: 12px 0;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .floating-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }
    .floating-info {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 14px;
    }
    .floating-title {
      font-weight: 700;
      color: #FFFFFF;
    }
    .floating-desc {
      color: var(--text-muted);
    }
    .floating-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .floating-btn-sec {
      padding: 8px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      color: var(--text-main);
      font-size: 13px;
      font-weight: 500;
    }
    .floating-btn-sec:hover {
      border-color: var(--cyan);
      color: var(--cyan);
    }
    .floating-btn-pri {
      padding: 8px 20px;
      background: var(--cyan);
      color: #0B0E14;
      font-size: 13px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
    }
    .floating-btn-pri:hover {
      background: #38f6ff;
    }

    /* 全局综合页脚 */
    .site-footer {
      background: #06080B;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 0 100px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 18px;
      color: #FFFFFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-col h5 {
      font-size: 15px;
      color: #FFFFFF;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a:hover {
      color: var(--cyan);
    }
    .footer-trust-list {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: var(--text-dim);
    }

    /* 移动端菜单按钮 */
    .nav-toggle-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 8px 12px;
      color: var(--text-main);
      font-size: 18px;
      cursor: pointer;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .global-stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
      .selling-grid {
        grid-template-columns: 1fr;
      }
      .arch-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #0B0E14;
        flex-direction: column;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-toggle-btn {
        display: block;
      }
      .nav-cta {
        display: none;
      }
      .loc-grid {
        grid-template-columns: 1fr;
      }
      .global-stats-row {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .arch-grid {
        grid-template-columns: 1fr;
      }
      .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .floating-desc {
        display: none;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
    }