/* roulang page: index */
:root {
      --primary: #0F141C;
      --primary-light: #1A2230;
      --accent: #C59B63;
      --accent-hover: #D4AB74;
      --cyan: #00BFA5;
      --surface-light: #F4F6F9;
      --surface-white: #FFFFFF;
      --surface-dark: #0B0E14;
      --text-main: #1D2530;
      --text-muted: #4A5568;
      --text-light: #94A3B8;
      --border-light: rgba(15, 20, 28, 0.08);
      --border-dark: rgba(255, 255, 255, 0.1);
      --radius-sm: 6px;
      --radius-md: 8px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 12px 32px rgba(15, 20, 28, 0.08);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--surface-light);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
    }
    .code-font {
      font-family: "JetBrains Mono", "SF Mono", Consolas, monospace;
    }
    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航系统 */
    .top-meta-bar {
      height: 36px;
      background-color: #07090D;
      color: var(--text-light);
      font-size: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .top-meta-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 100%;
    }
    .top-meta-left span {
      margin-right: 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .brand-mark {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary) 0%, #2A364F 100%);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
      border: 1px solid rgba(197, 155, 99, 0.3);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 32px;
    }
    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover {
      color: var(--accent);
    }
    .nav-item.active a {
      color: var(--accent);
      font-weight: 600;
    }
    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }
    .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);
      gap: 8px;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }
    .btn-primary:hover {
      background-color: var(--primary-light);
      box-shadow: 0 4px 12px rgba(15, 20, 28, 0.2);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #0F141C;
      font-weight: 700;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(197, 155, 99, 0.3);
    }
    .btn-outline {
      background: transparent;
      color: var(--primary);
      border-color: rgba(15, 20, 28, 0.2);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background: rgba(15, 20, 28, 0.04);
    }
    .btn-outline-dark {
      background: transparent;
      color: #FFFFFF;
      border-color: rgba(255, 255, 255, 0.25);
    }
    .btn-outline-dark:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: #FFFFFF;
    }
    /* 通用板块样式 */
    .section {
      padding: 96px 0;
      position: relative;
    }
    .section-dark {
      background-color: var(--surface-dark);
      color: #FFFFFF;
    }
    .section-white {
      background-color: var(--surface-white);
    }
    .section-header {
      margin-bottom: 56px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .tag-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      background: rgba(197, 155, 99, 0.1);
      color: var(--accent);
      border: 1px solid rgba(197, 155, 99, 0.25);
      border-radius: 4px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .tag-badge-dark {
      background: rgba(0, 191, 165, 0.12);
      color: var(--cyan);
      border-color: rgba(0, 191, 165, 0.3);
    }
    .section-title {
      font-size: 36px;
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
      color: var(--primary);
    }
    .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);
    }

    /* 1. 首屏双栏门户 */
    .hero-portal {
      position: relative;
      background-color: var(--primary);
      color: #FFFFFF;
      padding: 80px 0 100px;
      background-image: radial-gradient(circle at 80% 20%, rgba(197, 155, 99, 0.12) 0%, transparent 40%), linear-gradient(180deg, #07090E 0%, #0F141C 100%);
      border-bottom: 1px solid var(--border-dark);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }
    .hero-claim h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.22;
      margin-bottom: 24px;
      letter-spacing: -0.03em;
    }
    .hero-claim h1 span {
      color: var(--accent);
    }
    .hero-intro {
      font-size: 16px;
      color: #C0C8D4;
      margin-bottom: 36px;
      line-height: 1.8;
      max-width: 620px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-meta-points {
      display: flex;
      gap: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
    }
    .hero-meta-item .num {
      font-size: 24px;
      font-weight: 700;
      color: #FFFFFF;
      font-family: "JetBrains Mono", monospace;
    }
    .hero-meta-item .lbl {
      font-size: 13px;
      color: var(--text-light);
      margin-top: 4px;
    }
    .hero-portal-panel {
      background: rgba(26, 34, 48, 0.65);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
      backdrop-filter: blur(10px);
    }
    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .panel-header-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      letter-spacing: 0.02em;
    }
    .panel-status {
      font-size: 12px;
      color: var(--cyan);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: var(--cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--cyan);
    }
    .entry-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .entry-card {
      background: rgba(15, 20, 28, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: var(--radius-sm);
      padding: 16px;
      transition: var(--transition);
      display: block;
    }
    .entry-card:hover {
      border-color: var(--accent);
      transform: translateY(-2px);
      background: rgba(15, 20, 28, 0.95);
    }
    .entry-card-title {
      font-size: 14px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .entry-card-desc {
      font-size: 12px;
      color: var(--text-light);
      line-height: 1.5;
    }

    /* 2. 产业痛点板块 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: #D9534F;
    }
    .pain-index {
      font-size: 13px;
      font-weight: 700;
      color: #D9534F;
      margin-bottom: 12px;
      font-family: "JetBrains Mono", monospace;
    }
    .pain-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .pain-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 解决方案 / 核心架构特性 6单元 */
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .arch-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: var(--transition);
      position: relative;
    }
    .arch-card:hover {
      transform: translateY(-4px);
      border-color: var(--accent);
      box-shadow: var(--shadow-lg);
    }
    .arch-icon {
      width: 44px;
      height: 44px;
      background: rgba(197, 155, 99, 0.12);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 700;
      font-size: 18px;
      margin-bottom: 20px;
    }
    .arch-card h3 {
      font-size: 20px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .arch-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .arch-metric {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      background: var(--surface-light);
      padding: 4px 10px;
      border-radius: 4px;
      border-left: 3px solid var(--accent);
    }

    /* 4. 品牌与工艺方法图文交替 */
    .process-band {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      margin-bottom: 72px;
    }
    .process-band:last-child {
      margin-bottom: 0;
    }
    .process-band.reverse {
      direction: rtl;
    }
    .process-band.reverse > * {
      direction: ltr;
    }
    .process-visual {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .process-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .process-visual:hover img {
      transform: scale(1.03);
    }
    .process-info h3 {
      font-size: 26px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .process-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .spec-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .spec-tag-item {
      font-size: 12px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 4px;
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      color: var(--text-main);
    }

    /* 5. 深色全宽算力底座全景 */
    .stack-visual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .stack-levels {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .stack-layer {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      transition: var(--transition);
    }
    .stack-layer:hover {
      border-color: var(--cyan);
      background: rgba(0, 191, 165, 0.05);
    }
    .layer-head {
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
    }
    .layer-title {
      font-size: 16px;
      font-weight: 600;
      color: #FFFFFF;
    }
    .layer-label {
      font-size: 12px;
      color: var(--cyan);
      font-family: "JetBrains Mono", monospace;
    }
    .layer-detail {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.6;
    }
    .stack-cover-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.12);
    }
    .stack-cover-box img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    /* 6. 场景演示 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .scenario-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent);
    }
    .scenario-thumb {
      height: 190px;
      overflow: hidden;
    }
    .scenario-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scenario-card:hover .scenario-thumb img {
      transform: scale(1.05);
    }
    .scenario-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .scenario-body h4 {
      font-size: 17px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .scenario-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .scenario-stat {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
    }

    /* 7. 关键数据条 */
    .metrics-strip {
      background-color: #0B0E14;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 48px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-col .val {
      font-size: 42px;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: "JetBrains Mono", monospace;
    }
    .metric-col .val span {
      color: var(--accent);
      font-size: 24px;
    }
    .metric-col .desc {
      font-size: 14px;
      color: var(--text-light);
    }

    /* 8. 社会认同与技术评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.75;
      margin-bottom: 24px;
      position: relative;
    }
    .testi-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-light);
      padding-top: 18px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 14px;
    }
    .testi-author h5 {
      font-size: 15px;
      font-weight: 600;
      color: var(--primary);
    }
    .testi-author span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 9. 技术资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent);
    }
    .news-card-img {
      height: 200px;
      overflow: hidden;
    }
    .news-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-card-img img {
      transform: scale(1.04);
    }
    .news-card-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-light);
      font-family: "JetBrains Mono", monospace;
      margin-bottom: 8px;
    }
    .news-card-content h3 {
      font-size: 17px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .news-card-content p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 10. 套餐/芯片选型参数对比 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      box-shadow: var(--shadow-sm);
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }
    .matrix-card.featured {
      border: 2px solid var(--accent);
      box-shadow: 0 16px 36px rgba(197, 155, 99, 0.12);
    }
    .featured-badge {
      position: absolute;
      top: -12px;
      right: 28px;
      background: var(--accent);
      color: #0F141C;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: 4px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .matrix-chip-name {
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .matrix-chip-type {
      font-size: 13px;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 24px;
    }
    .specs-table {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .specs-table li {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px solid var(--border-light);
      font-size: 13px;
    }
    .specs-table li .k {
      color: var(--text-muted);
    }
    .specs-table li .v {
      font-weight: 600;
      color: var(--primary);
      font-family: "JetBrains Mono", monospace;
    }

    /* 11. 合作伙伴网格 */
    .eco-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .eco-item {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 600;
      color: #64748B;
      transition: var(--transition);
      text-align: center;
      padding: 8px 12px;
    }
    .eco-item:hover {
      border-color: var(--accent);
      color: var(--primary);
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }

    /* 12. FAQ 折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: "+";
      font-size: 20px;
      color: var(--accent);
      font-weight: 400;
      transition: transform 0.2s ease;
    }
    details[open] .faq-summary::after {
      content: "−";
    }
    details[open] {
      border-color: rgba(197, 155, 99, 0.4);
    }
    .faq-body {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(15, 20, 28, 0.04);
      margin-top: 4px;
    }

    /* 13. 保障条 */
    .guarantee-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 40px 0;
    }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .guarantee-icon {
      width: 40px;
      height: 40px;
      background: var(--surface-light);
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-weight: 700;
      flex-shrink: 0;
      font-size: 16px;
      border: 1px solid var(--border-light);
    }
    .guarantee-item h5 {
      font-size: 15px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .guarantee-item p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 14. 转化表单区 */
    .conversion-box {
      background: var(--surface-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      padding: 56px 48px;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 56px;
      align-items: center;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .form-control {
      width: 100%;
      height: 44px;
      padding: 8px 14px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 14px;
      background: var(--surface-light);
      color: var(--text-main);
      transition: var(--transition);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--accent);
      background: #FFFFFF;
    }
    textarea.form-control {
      height: 96px;
      resize: vertical;
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    /* 页脚 */
    .site-footer {
      background-color: #07090D;
      color: var(--text-light);
      padding: 72px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 20px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 移动端菜单控制 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--primary);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .arch-grid, .pain-grid, .matrix-grid, .news-grid, .testi-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .eco-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .conversion-box {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 40px 32px;
      }
      .stack-visual-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-meta-bar {
        display: none;
      }
      .nav-container {
        height: 60px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        display: none;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-item {
        width: 100%;
      }
      .nav-item a {
        display: block;
        padding: 10px 0;
        font-size: 16px;
      }
      .hero-claim h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 28px;
      }
      .arch-grid, .pain-grid, .matrix-grid, .news-grid, .testi-grid, .scenario-grid, .metrics-grid, .guarantee-grid {
        grid-template-columns: 1fr;
      }
      .process-band {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .process-band.reverse {
        direction: ltr;
      }
      .entry-grid {
        grid-template-columns: 1fr;
      }
      .eco-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
    }