/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #0A3A85;
      --primary-light: #EBF3FD;
      --accent: #FF6F00;
      --accent-hover: #E66400;
      --dark: #0A192F;
      --dark-surface: #112240;
      --text: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --bg-white: #FFFFFF;
      --bg-light: #F8FAFC;
      --bg-alt: #F1F5F9;
      --border: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --radius-full: 9999px;
      --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 12px 24px -4px rgba(15, 82, 186, 0.12), 0 4px 8px -2px rgba(15, 82, 186, 0.06);
      --font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: var(--font);
      background-color: var(--bg-white);
      color: var(--text);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

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

    button {
      cursor: pointer;
      border: none;
      background: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: #FFFFFF;
      box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    }
    .top-bar {
      background: #0A192F;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid #1E2D48;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(16, 185, 129, 0.15);
      color: #10B981;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      font-size: 12px;
      font-weight: 500;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      background: #10B981;
      border-radius: 50%;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.9); }
      100% { opacity: 1; transform: scale(1); }
    }

    .main-bar {
      padding: 14px 0;
      background: #FFFFFF;
    }
    .main-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      font-weight: 900;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: #334155;
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-links a.active {
      color: var(--primary);
      font-weight: 600;
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
    }
    .btn-accent {
      background: var(--accent);
      color: #FFFFFF;
    }
    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(255, 111, 0, 0.3);
    }
    .btn-outline {
      border: 1px solid var(--border);
      color: var(--text);
      background: #FFFFFF;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-lg {
      padding: 13px 28px;
      font-size: 16px;
    }

    .mobile-toggle {
      display: none;
      font-size: 24px;
      color: var(--text);
      cursor: pointer;
    }

    /* Section 通用规范 */
    .section {
      padding: 80px 0;
      position: relative;
    }
    .section-alt {
      background: var(--bg-light);
    }
    .section-dark {
      background: var(--dark);
      color: #FFFFFF;
    }
    .section-header {
      max-width: 800px;
      margin: 0 auto 50px auto;
      text-align: center;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }
    .section-dark .section-badge {
      background: rgba(15, 82, 186, 0.3);
      color: #60A5FA;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--dark);
      line-height: 1.35;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: var(--text-light);
    }

    /* 板块 1：Hero Section - 预约排期与控制台大厅蓝图结合 */
    .hero-section {
      padding: 70px 0 80px 0;
      background: linear-gradient(135deg, #0A192F 0%, #0F2A4A 100%);
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/cd4ad89f3dbbcaf3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
      position: relative;
      z-index: 1;
    }
    .hero-content h1 {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-content h1 span {
      color: #38BDF8;
    }
    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 30px;
    }
    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 32px;
    }
    .hero-tag-item {
      display: flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 13px;
      color: #E2E8F0;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .hero-board {
      background: rgba(17, 34, 64, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .board-title {
      font-size: 16px;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .board-time {
      font-size: 13px;
      color: #38BDF8;
    }
    .board-stat-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 20px;
    }
    .board-stat-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 14px;
    }
    .board-stat-card .val {
      font-size: 26px;
      font-weight: 800;
      color: #F8FAFC;
      line-height: 1.2;
    }
    .board-stat-card .lbl {
      font-size: 12px;
      color: #94A3B8;
      margin-top: 4px;
    }
    .radar-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .radar-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: rgba(255, 255, 255, 0.03);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      border-left: 3px solid var(--accent);
    }
    .radar-item span.state {
      color: #10B981;
      font-weight: 600;
    }

    /* 板块 2：产品工程底座与拓扑结构 */
    .arch-card-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 40px;
      align-items: center;
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .arch-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border);
      background: var(--bg-alt);
    }
    .arch-img-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .arch-img-box:hover img {
      transform: scale(1.02);
    }
    .arch-specs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .arch-spec-item {
      background: var(--bg-light);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--primary);
    }
    .arch-spec-item strong {
      display: block;
      font-size: 15px;
      color: var(--dark);
      margin-bottom: 4px;
    }
    .arch-spec-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 3：核心优势看板区 (6 卡片网格) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feat-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: all 0.3s ease;
      position: relative;
    }
    .feat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #BFDBFE;
    }
    .feat-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .feat-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }
    .feat-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 4：业务矩阵产品区 (3 大卡片) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .matrix-img-box {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .matrix-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .matrix-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: var(--accent);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }
    .matrix-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .matrix-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .matrix-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .matrix-points {
      list-style: none;
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .matrix-points li {
      font-size: 13px;
      color: #334155;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .matrix-points li::before {
      content: '✓';
      color: #10B981;
      font-weight: 900;
    }

    /* 板块 5：深色技术架构与控制底座 */
    .system-pipeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 40px;
      position: relative;
    }
    .pipeline-step {
      background: var(--dark-surface);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      position: relative;
      transition: all 0.3s ease;
    }
    .pipeline-step:hover {
      border-color: #38BDF8;
      background: #172E54;
    }
    .step-seq {
      font-size: 13px;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 10px;
      display: inline-block;
    }
    .pipeline-step h4 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .pipeline-step p {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.6;
    }

    /* 板块 6：对比案例与改造成果 */
    .case-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .case-panel {
      border-radius: var(--radius-lg);
      padding: 36px;
      position: relative;
    }
    .case-panel-before {
      background: #FFF1F2;
      border: 1px solid #FECDD3;
    }
    .case-panel-after {
      background: #F0FDF4;
      border: 1px solid #BBF7D0;
    }
    .case-label {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      margin-bottom: 16px;
    }
    .case-label-red {
      background: #F43F5E;
      color: #FFFFFF;
    }
    .case-label-green {
      background: #10B981;
      color: #FFFFFF;
    }
    .case-panel h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 16px;
    }
    .case-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .case-list li {
      font-size: 14px;
      line-height: 1.6;
      color: #334155;
    }
    .case-panel-before li strong {
      color: #E11D48;
    }
    .case-panel-after li strong {
      color: #059669;
    }

    /* 板块 7：运行效能统计看板条 */
    .milestone-strip {
      background: var(--dark);
      color: #FFFFFF;
      padding: 50px 0;
      border-top: 1px solid rgba(255,255,255,0.08);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .milestone-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .milestone-num {
      font-size: 44px;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: Arial, sans-serif;
    }
    .milestone-num span {
      font-size: 24px;
      color: var(--accent);
    }
    .milestone-label {
      font-size: 14px;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 板块 8：用户真实评价与行业口碑区 */
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .testi-quote-mark {
      position: absolute;
      top: 20px;
      right: 24px;
      font-size: 56px;
      color: #E2E8F0;
      font-family: serif;
      line-height: 1;
      pointer-events: none;
    }
    .testi-stars {
      color: #F59E0B;
      font-size: 16px;
      margin-bottom: 14px;
    }
    .testi-text {
      font-size: 15px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .testi-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }
    .testi-author strong {
      display: block;
      font-size: 15px;
      color: var(--dark);
    }
    .testi-author span {
      font-size: 13px;
      color: var(--text-muted);
    }
    .testi-days {
      font-size: 12px;
      color: #059669;
      font-weight: 600;
      background: #ECFDF5;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
    }

    /* 板块 9：物流前沿与技术资讯动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #BFDBFE;
    }
    .news-thumb {
      height: 150px;
      overflow: hidden;
      background: var(--bg-alt);
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
    }
    .news-badge {
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: var(--radius-full);
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
    }
    .news-body h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .news-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex: 1;
    }
    .news-btn {
      align-self: flex-start;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .news-btn:hover {
      color: var(--primary-dark);
    }

    /* 板块 10：平台交付与安全保障体系 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .assurance-box {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 26px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .assurance-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px auto;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 700;
    }
    .assurance-box h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .assurance-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 11：常见疑难解答手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-item[open] {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-title {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--dark);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-title::-webkit-details-marker {
      display: none;
    }
    .faq-title::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      font-weight: 700;
      transition: transform 0.25s ease;
    }
    .faq-item[open] .faq-title::after {
      content: '−';
    }
    .faq-content {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: #475569;
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    /* 板块 12：即时转化与预约演示表单 */
    .conversion-card {
      background: #FFFFFF;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1.25fr;
      overflow: hidden;
    }
    .conversion-info {
      background: linear-gradient(135deg, #0F52BA 0%, #0A3A85 100%);
      color: #FFFFFF;
      padding: 44px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .conversion-info h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .conversion-info p {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 28px;
    }
    .benefit-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .benefit-checklist li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: #F8FAFC;
    }
    .benefit-icon {
      color: #38BDF8;
      font-weight: bold;
    }
    .conversion-form-box {
      padding: 44px;
    }
    .form-group-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-group {
      margin-bottom: 16px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-label {
      font-size: 13px;
      font-weight: 600;
      color: #334155;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text);
      outline: none;
      background: #FFFFFF;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.1);
    }
    .checkbox-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      padding-top: 4px;
    }
    .checkbox-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: #475569;
      cursor: pointer;
    }
    .form-tips {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 12px;
      text-align: center;
    }

    /* 全局页脚 */
    .site-footer {
      background: #060E1A;
      color: #94A3B8;
      padding-top: 60px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 18px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 14px;
      color: #94A3B8;
    }
    .footer-links a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-contact-item {
      font-size: 14px;
      color: #94A3B8;
      margin-bottom: 10px;
      line-height: 1.6;
    }
    .footer-contact-item strong {
      color: #CBD5E1;
    }
    .footer-bottom {
      border-top: 1px solid #112240;
      padding: 24px 0;
      font-size: 13px;
      color: #64748B;
      text-align: center;
    }
    .footer-bottom-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 原生对话框 Dialog 样式 */
    dialog.modal-box {
      margin: auto;
      border: none;
      border-radius: var(--radius-md);
      padding: 30px;
      max-width: 600px;
      width: 90%;
      background: #FFFFFF;
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
    }
    dialog::backdrop {
      background: rgba(10, 25, 47, 0.7);
      backdrop-filter: blur(4px);
    }
    .modal-box h4 {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }
    .modal-box p {
      font-size: 14px;
      line-height: 1.7;
      color: #475569;
      margin-bottom: 20px;
    }
    .modal-close-btn {
      float: right;
      padding: 8px 18px;
      background: var(--primary);
      color: #FFF;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 13px;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .arch-card-wrapper {
        grid-template-columns: 1fr;
      }
      .arch-img-box img {
        height: 280px;
      }
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid {
        grid-template-columns: 1fr;
      }
      .system-pipeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .assurance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .conversion-card {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .header-cta {
        display: none;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 24px;
      }
      .features-grid {
        grid-template-columns: 1fr;
      }
      .system-pipeline {
        grid-template-columns: 1fr;
      }
      .case-container {
        grid-template-columns: 1fr;
      }
      .milestone-grid {
        grid-template-columns: 1fr 1fr;
      }
      .testi-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .assurance-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom-inner {
        flex-direction: column;
        gap: 10px;
      }
      .form-group-row {
        grid-template-columns: 1fr;
      }
      .conversion-info, .conversion-form-box {
        padding: 24px;
      }
    }