/* roulang page: index */
:root {
      --bg-dark: #0d0f12;
      --bg-surface: #14181d;
      --bg-card: #1c2229;
      --primary: #00ff87;
      --primary-hover: #00e077;
      --accent: #00d2ff;
      --text-main: #f4f6f8;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(0, 255, 135, 0.3);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);
      --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      line-height: 1.65;
      overflow-x: hidden;
      background-color: var(--bg-dark);
    }

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

    ul, ol {
      list-style: none;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section {
      padding: clamp(64px, 7vw, 110px) 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      margin-bottom: clamp(36px, 4vw, 56px);
      max-width: 800px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 12px;
      padding: 4px 12px;
      background: rgba(0, 255, 135, 0.08);
      border: 1px solid rgba(0, 255, 135, 0.2);
      border-radius: 4px;
    }

    .section-title {
      font-size: clamp(1.85rem, 3.2vw, 2.5rem);
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 顶部双行导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13, 15, 18, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .header-topbar {
      background: #090a0d;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 0.82rem;
      color: var(--text-dim);
      padding: 6px 0;
    }

    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .topbar-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }

    .topbar-hotline strong {
      color: var(--primary);
      font-weight: 600;
    }

    .header-main {
      padding: 16px 0;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 900;
      color: #fff;
      letter-spacing: -0.5px;
    }

    .brand-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0d0f12;
      font-weight: 900;
      font-size: 1.1rem;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
    }

    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #07090b;
      box-shadow: 0 4px 20px rgba(0, 255, 135, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 26px rgba(0, 255, 135, 0.4);
      transform: translateY(-2px);
    }

    .btn-outline {
      border: 1px solid var(--border-color);
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.03);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(0, 255, 135, 0.05);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 1.5rem;
      cursor: pointer;
    }

    /* 1. Hero Section */
    .hero-section {
      position: relative;
      padding: clamp(60px, 8vw, 120px) 0 clamp(40px, 6vw, 90px);
      overflow: hidden;
      background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(0, 255, 135, 0.06) 0%, transparent 50%),
                  var(--bg-dark);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(0, 255, 135, 0.1);
      border: 1px solid rgba(0, 255, 135, 0.3);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: clamp(2.3rem, 4.2vw, 3.8rem);
      line-height: 1.15;
      font-weight: 900;
      letter-spacing: -1px;
      margin-bottom: 24px;
      color: #fff;
    }

    .hero-title span {
      background: linear-gradient(135deg, #fff 30%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-tags-row {
      display: flex;
      gap: 24px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .hero-tag-item {
      display: flex;
      flex-direction: column;
    }

    .hero-tag-item strong {
      font-size: 1.15rem;
      color: #fff;
    }

    .hero-tag-item span {
      font-size: 0.8rem;
      color: var(--text-dim);
    }

    .hero-visual-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      background: var(--bg-card);
    }

    .hero-img {
      width: 100%;
      aspect-ratio: 16/10;
      object-fit: cover;
      display: block;
      filter: brightness(0.95);
    }

    .hero-overlay-tag {
      position: absolute;
      bottom: 16px;
      left: 16px;
      right: 16px;
      background: rgba(13, 15, 18, 0.85);
      backdrop-filter: blur(8px);
      padding: 12px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
    }

    /* 2. 行业痛点区 */
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .pain-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 32px 24px;
      border-radius: var(--radius-md);
      position: relative;
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .pain-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 75, 75, 0.4);
    }

    .pain-icon-wrapper {
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: rgba(255, 68, 68, 0.1);
      color: #ff5e5e;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.2rem;
      margin-bottom: 20px;
    }

    .pain-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .pain-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 3. 品牌与综合解决方案区 */
    .split-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .solution-feature-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 28px;
    }

    .sol-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 16px;
      background: rgba(255, 255, 255, 0.02);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .sol-item-icon {
      font-size: 1.25rem;
      color: var(--primary);
      margin-top: 2px;
    }

    .sol-item-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
    }

    .sol-item-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .solution-banner-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }

    /* 4. 核心技术优势区 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .adv-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 32px 28px;
      border-radius: var(--radius-md);
      transition: all 0.3s ease;
      position: relative;
    }

    .adv-card::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      transition: border-color 0.3s ease;
      pointer-events: none;
    }

    .adv-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
    }

    .adv-card:hover::after {
      border-color: var(--primary);
    }

    .adv-index {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 14px;
      display: block;
      letter-spacing: 1px;
    }

    .adv-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .adv-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 产品与系统矩阵区 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .product-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }

    .product-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-highlight);
    }

    .product-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      position: relative;
    }

    .product-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .product-card:hover .product-img-wrap img {
      transform: scale(1.06);
    }

    .product-content {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .product-tag {
      font-size: 0.78rem;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 8px;
      text-transform: uppercase;
    }

    .product-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .product-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 24px;
      flex: 1;
    }

    .product-btn {
      width: 100%;
      text-align: center;
    }

    /* 6. 实施步骤与演进流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      margin-top: 40px;
    }

    .process-timeline::before {
      content: "";
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      z-index: 1;
      opacity: 0.35;
    }

    .process-step {
      position: relative;
      z-index: 2;
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 20px;
      text-align: center;
    }

    .step-number {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: #0d0f12;
      border: 2px solid var(--primary);
      color: var(--primary);
      font-size: 1.25rem;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 0 16px rgba(0, 255, 135, 0.2);
    }

    .step-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .step-detail {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 案例区 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .case-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
    }

    .case-thumb {
      height: 240px;
      overflow: hidden;
    }

    .case-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-body {
      padding: 32px;
    }

    .case-badge {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
      display: inline-block;
    }

    .case-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }

    .case-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .case-stats {
      display: flex;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }

    .stat-pill strong {
      display: block;
      font-size: 1.1rem;
      color: var(--primary);
    }

    .stat-pill span {
      font-size: 0.8rem;
      color: var(--text-dim);
    }

    /* 8. 运营叙事故事区 */
    .story-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .story-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .story-quote {
      font-size: 1.05rem;
      font-style: italic;
      color: var(--text-main);
      line-height: 1.75;
      margin-bottom: 24px;
    }

    .story-author {
      display: flex;
      align-items: center;
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }

    .author-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #252e38;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .author-meta strong {
      display: block;
      font-size: 0.95rem;
      color: #fff;
    }

    .author-meta span {
      font-size: 0.82rem;
      color: var(--text-dim);
    }

    /* 9. 数据指标条 */
    .metrics-bar {
      background: linear-gradient(180deg, #10141a, #0b0d10);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 60px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-value {
      font-size: clamp(2.2rem, 3.5vw, 3.2rem);
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 10. 评价区 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #f59e0b;
      margin-bottom: 16px;
      font-size: 1rem;
      letter-spacing: 2px;
    }

    .review-content {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex: 1;
    }

    .review-client {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .client-avatar-ph {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #252d37;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--accent);
    }

    .client-info strong {
      display: block;
      font-size: 0.9rem;
      color: #fff;
    }

    .client-info span {
      font-size: 0.8rem;
      color: var(--text-dim);
    }

    /* 11. 资讯与前沿动态 */
    .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;
      transition: transform 0.3s ease;
    }

    .news-card:hover {
      transform: translateY(-4px);
    }

    .news-img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }

    .news-body {
      padding: 24px;
      flex: 1;
      display:flex;
      flex-direction: column;
    }

    .news-date {
      font-size: 0.8rem;
      color: var(--text-dim);
      margin-bottom: 10px;
    }

    .news-headline {
      font-size: 1.12rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .news-summary {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      flex: 1;
    }

    .news-link {
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 12. FAQ 与终极咨询 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto clamp(48px, 6vw, 72px);
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item[open] {
      border-color: rgba(0, 255, 135, 0.35);
    }

    .faq-summary {
      padding: 22px 24px;
      cursor: pointer;
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }

    .faq-summary::-webkit-details-marker {
      display: none;
    }

    .faq-summary::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-item[open] .faq-summary::after {
      content: "−";
    }

    .faq-content {
      padding: 0 24px 22px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 18px;
    }

    .cta-card {
      background: linear-gradient(135deg, #161c23 0%, #0d1217 100%);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: clamp(36px, 5vw, 64px);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
      position: relative;
      overflow: hidden;
    }

    .cta-card::before {
      content: "";
      position: absolute;
      top: -100px;
      right: -100px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(0, 255, 135, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }

    .cta-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .cta-info h3 {
      font-size: clamp(1.8rem, 3vw, 2.4rem);
      font-weight: 900;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.25;
    }

    .cta-info p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-contact-meta {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
    }

    .cta-form {
      background: rgba(13, 15, 18, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      background: #1a2027;
      border: 1px solid var(--border-color);
      color: #fff;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      font-family: inherit;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background: #080a0c;
      border-top: 1px solid var(--border-color);
      padding: clamp(60px, 6vw, 90px) 0 30px;
      color: var(--text-muted);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
      gap: 40px;
      margin-bottom: 60px;
    }

    .footer-brand p {
      font-size: 0.92rem;
      line-height: 1.7;
      margin-top: 16px;
      color: var(--text-dim);
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 20px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .footer-contact-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid, .split-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .grid-4, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3x2, .grid-3, .review-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline::before {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .header-topbar {
        display: none;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #0f1318;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 24px;
        gap: 18px;
      }
      .nav-menu.is-active {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .grid-4, .grid-3x2, .grid-3, .case-grid, .story-grid, .review-grid, .news-grid, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .hero-tags-row {
        flex-direction: column;
        gap: 12px;
      }
    }