/* roulang page: index */
:root {
      --primary: #00D084;
      --primary-hover: #00b371;
      --primary-glow: rgba(0, 208, 132, 0.25);
      --secondary: #1A2232;
      --accent: #FF6B35;
      --accent-glow: rgba(255, 107, 53, 0.2);
      --bg-dark: #0C1017;
      --bg-surface: #141C26;
      --bg-card: #16202C;
      --bg-alt: #0F151E;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-hover: rgba(0, 208, 132, 0.4);
      --font-mono: 'SF Mono', Consolas, 'Roboto Mono', Menlo, monospace;
      --radius-sm: 8px;
      --radius-md: 14px;
      --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.45);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      --max-width: 1280px;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

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

    button, input, select, textarea {
      font: inherit;
      color: inherit;
    }

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

    /* 顶部导航系统 */
    .top-bar {
      background-color: #07090D;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      padding: 6px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-live-status {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
      display: inline-block;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
      100% { opacity: 1; transform: scale(1); }
    }

    header.main-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(12, 16, 23, 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: 10px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.5px;
      color: var(--text-main);
    }
    .logo-badge {
      background: linear-gradient(135deg, var(--primary), #008753);
      color: #05140d;
      padding: 4px 8px;
      border-radius: 6px;
      font-size: 11px;
      font-weight: 800;
      font-family: var(--font-mono);
      text-transform: uppercase;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      color: var(--text-muted);
      font-size: 15px;
      font-weight: 500;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #061810;
      box-shadow: 0 4px 16px var(--primary-glow);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 208, 132, 0.4);
    }
    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background-color: rgba(255, 255, 255, 0.03);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(0, 208, 132, 0.05);
      transform: translateY(-2px);
    }

    /* 板块通用规范 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 48px;
      max-width: 780px;
    }
    .section-tag {
      display: inline-block;
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--primary);
      background: rgba(0, 208, 132, 0.1);
      border: 1px solid rgba(0, 208, 132, 0.25);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .section-header h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.7;
    }

    /* 板块一：Hero 首屏 */
    .hero-section {
      padding: 70px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 208, 132, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at 10% 70%, rgba(26, 34, 50, 0.6) 0%, transparent 50%),
                  var(--bg-dark);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-bg-cover {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/05b18e514e084f26.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: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-content h1 span {
      color: var(--primary);
    }
    .hero-intro {
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .hero-points {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 32px;
    }
    .hero-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #94a3b8;
    }
    .hero-points li svg {
      width: 16px;
      height: 16px;
      fill: var(--primary);
      flex-shrink: 0;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 30px;
    }
    .hero-trust-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .hero-trust-bar strong {
      color: var(--primary);
      font-family: var(--font-mono);
    }
    .hero-panel {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-card);
      overflow: hidden;
    }
    .panel-header {
      background: rgba(255, 255, 255, 0.03);
      padding: 12px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
    }
    .panel-dots {
      display: flex;
      gap: 6px;
    }
    .panel-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }
    .panel-tag-live {
      font-size: 11px;
      font-family: var(--font-mono);
      background: rgba(255, 107, 53, 0.15);
      color: var(--accent);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .panel-body {
      padding: 20px;
    }
    .schedule-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px;
      background: var(--bg-card);
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
      border-left: 3px solid var(--primary);
      font-size: 13px;
    }
    .schedule-item.clash {
      border-left-color: var(--accent);
      background: rgba(255, 107, 53, 0.05);
    }
    .schedule-time {
      font-family: var(--font-mono);
      color: var(--primary);
      font-weight: 600;
    }
    .schedule-teams {
      font-weight: 500;
    }
    .schedule-badge {
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-muted);
    }

    /* 板块二：指标看板 */
    .metrics-section {
      background-color: var(--bg-alt);
      padding: 40px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 24px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .metric-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .metric-value {
      font-family: var(--font-mono);
      font-size: 34px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .metric-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块三：架构引擎介绍 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .arch-visual {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .arch-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .arch-specs {
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .arch-spec-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      padding: 16px;
      border-radius: var(--radius-sm);
    }
    .arch-spec-box strong {
      display: block;
      color: var(--primary);
      font-size: 15px;
      margin-bottom: 4px;
      font-family: var(--font-mono);
    }
    .arch-spec-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块四：核心矩阵 6 卡片 */
    .matrix-section {
      background-color: var(--bg-alt);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card-matrix {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .card-matrix:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-card);
      transform: translateY(-4px);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 208, 132, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-family: var(--font-mono);
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .card-matrix h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .card-matrix p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块五：应用场景矩阵 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scene-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .scene-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }
    .scene-img {
      height: 190px;
      width: 100%;
      object-fit: cover;
      border-bottom: 1px solid var(--border-color);
    }
    .scene-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scene-tag {
      font-size: 12px;
      color: var(--primary);
      font-family: var(--font-mono);
      margin-bottom: 8px;
    }
    .scene-body h3 {
      font-size: 18px;
      margin-bottom: 12px;
    }
    .scene-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .scene-list {
      margin-top: auto;
      list-style: none;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      font-size: 13px;
      color: #cbd5e1;
    }
    .scene-list li {
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .scene-list li::before {
      content: "•";
      color: var(--primary);
      font-weight: bold;
    }

    /* 板块六：调度逻辑与算法理念 */
    .philosophy-section {
      background: #080B10;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .steps-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 40px;
    }
    .step-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 24px;
      position: relative;
    }
    .step-num {
      font-family: var(--font-mono);
      font-size: 28px;
      font-weight: 800;
      color: rgba(255, 255, 255, 0.15);
      position: absolute;
      top: 16px;
      right: 16px;
    }
    .step-box h3 {
      font-size: 16px;
      margin-bottom: 10px;
      color: var(--primary);
    }
    .step-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块七：结果与效率对比 */
    .compare-section {
      background: var(--bg-alt);
    }
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .compare-card {
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-color);
    }
    .compare-card.traditional {
      background: rgba(255, 255, 255, 0.02);
      border-color: rgba(255, 255, 255, 0.05);
    }
    .compare-card.intelligent {
      background: rgba(0, 208, 132, 0.03);
      border-color: rgba(0, 208, 132, 0.3);
      box-shadow: 0 8px 30px rgba(0, 208, 132, 0.06);
    }
    .compare-card h3 {
      font-size: 20px;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .compare-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .compare-list li {
      font-size: 14px;
      line-height: 1.6;
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }
    .compare-icon-bad {
      color: var(--accent);
      font-weight: 800;
      flex-shrink: 0;
    }
    .compare-icon-good {
      color: var(--primary);
      font-weight: 800;
      flex-shrink: 0;
    }

    /* 板块八：用户故事切片 */
    .story-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
    }
    .story-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 340px;
    }
    .story-content {
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .story-title {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .story-body {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .story-stats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .story-stat-val {
      font-family: var(--font-mono);
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
    }
    .story-stat-lbl {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块九：演进里程碑 */
    .timeline-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .milestone-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 24px 20px;
      position: relative;
      border-top: 3px solid var(--primary);
    }
    .milestone-year {
      font-family: var(--font-mono);
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .milestone-title {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .milestone-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块十：赛事资讯精选 */
    .news-section {
      background: var(--bg-alt);
    }
    .news-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: var(--border-hover);
      transform: translateY(-4px);
    }
    .news-thumbnail {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .news-content h3 {
      font-size: 17px;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-btn {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块十一：平台保障与合规资质 */
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .assurance-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 24px;
      text-align: center;
    }
    .assurance-icon {
      font-family: var(--font-mono);
      font-size: 26px;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .assurance-box h3 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .assurance-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块十二：用户评价与行业口碑 */
    .testimonial-section {
      background: var(--bg-alt);
    }
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #FFB800;
      margin-bottom: 14px;
      font-size: 14px;
      letter-spacing: 2px;
    }
    .testi-quote {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .testi-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #1e293b;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-family: var(--font-mono);
    }
    .testi-info h4 {
      font-size: 14px;
      font-weight: 600;
    }
    .testi-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块十三：高频常见疑问解答 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: rgba(255, 255, 255, 0.15);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      font-family: var(--font-mono);
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-item[open] summary::after {
      content: '−';
    }
    .faq-item[open] {
      border-color: var(--border-hover);
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      margin-top: 4px;
      padding-top: 16px;
    }

    /* 意向提交表单收口 */
    .action-cta-section {
      background: radial-gradient(circle at center, rgba(0, 208, 132, 0.12) 0%, transparent 70%), var(--bg-dark);
      border-top: 1px solid var(--border-color);
      padding: 70px 0;
    }
    .cta-card-box {
      max-width: 840px;
      margin: 0 auto;
      background: var(--bg-surface);
      border: 1px solid rgba(0, 208, 132, 0.3);
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
      border-radius: var(--radius-md);
      padding: 40px;
      text-align: center;
    }
    .cta-card-box h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .cta-card-box p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 28px;
    }
    .form-inline-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr auto;
      gap: 12px;
    }
    .form-control {
      background: #0d131c;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 14px;
      color: var(--text-main);
      width: 100%;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px var(--primary-glow);
    }

    /* 统一页脚 */
    footer.site-footer {
      background: #07090E;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      font-size: 13px;
      color: #64748B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col ul a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .arch-grid, .story-card {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .assurance-grid, .timeline-container, .steps-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .scene-grid, .testi-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-inline-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .hero-points {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .grid-3, .scene-grid, .steps-timeline, .compare-grid, .timeline-container, .assurance-grid, .testi-grid {
        grid-template-columns: 1fr;
      }
      .form-inline-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .story-card {
        grid-template-columns: 1fr;
      }
      .story-img {
        min-height: 220px;
      }
      .story-content {
        padding: 24px;
      }
    }