/* roulang page: index */
:root {
      --bg-primary: #F8FAFC;
      --bg-surface: #FFFFFF;
      --bg-dark: #0B0F19;
      --bg-dark-card: #151B2B;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #F1F5F9;
      --border-color: #E2E8F0;
      --border-dark: #2A3449;
      --accent: #00D26A;
      --accent-hover: #00B359;
      --accent-blue: #0284C7;
      --font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-lg: 8px;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 15px -5px rgba(0, 0, 0, 0.02);
      --shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --max-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-family);
      background-color: var(--bg-primary);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

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

    .section-padding {
      padding: 88px 0;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(0, 210, 106, 0.1);
      color: #00994C;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      border: 1px solid rgba(0, 210, 106, 0.25);
    }

    .section-tag.dark-tag {
      background: rgba(0, 210, 106, 0.15);
      color: var(--accent);
      border-color: rgba(0, 210, 106, 0.3);
    }

    .section-title {
      font-size: clamp(1.85rem, 3.2vw, 2.65rem);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .section-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.75;
      margin-bottom: 48px;
    }

    /* 顶部导航 */
    .top-statusbar {
      background: #060911;
      color: #94A3B8;
      font-size: 0.75rem;
      border-bottom: 1px solid #1E293B;
      padding: 6px 0;
    }

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

    .statusbar-meta {
      display: flex;
      gap: 20px;
    }

    .statusbar-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .main-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .site-brand {
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.03em;
    }

    .site-brand .brand-pulse {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 3px rgba(0, 210, 106, 0.25);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }

    .nav-link {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 8px 4px;
      position: relative;
    }

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

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
    }

    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 44px;
      padding: 0 20px;
      font-size: 0.9375rem;
      font-weight: 700;
      background: var(--text-main);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      transition: background 0.2s ease, transform 0.15s ease;
      white-space: nowrap;
    }

    .nav-cta-btn:hover {
      background: #1E293B;
      transform: translateY(-1px);
    }

    .mobile-menu-trigger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-trigger span {
      width: 24px;
      height: 2px;
      background: var(--text-main);
      transition: 0.2s ease;
    }

    /* 板块一：Hero 杂志分栏大屏 */
    .hero-section {
      padding: 64px 0 88px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

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

    .hero-headline {
      font-size: clamp(2.35rem, 4.2vw, 3.4rem);
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 24px;
      color: #0A0F1D;
    }

    .hero-headline mark {
      background: transparent;
      color: #0284C7;
      border-bottom: 3px solid var(--accent);
    }

    .hero-summary {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 36px;
    }

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

    .btn-primary {
      min-height: 48px;
      padding: 0 28px;
      background: var(--text-main);
      color: #FFFFFF;
      font-weight: 700;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 1px solid var(--text-main);
      transition: all 0.2s ease;
    }

    .btn-primary:hover {
      background: #000000;
      border-color: #000000;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    .btn-secondary {
      min-height: 48px;
      padding: 0 24px;
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }

    .btn-secondary:hover {
      background: #F8FAFC;
      border-color: #CBD5E1;
    }

    .hero-quick-data {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
    }

    .hero-quick-data-item strong {
      display: block;
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-main);
      font-family: monospace;
    }

    .hero-quick-data-item span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    .hero-feature-board {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .hero-board-header {
      background: #0F172A;
      color: #F8FAFC;
      padding: 16px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.875rem;
      font-weight: 700;
    }

    .hero-board-header .board-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--accent);
      font-size: 0.75rem;
    }

    .hero-board-img {
      position: relative;
      height: 310px;
      overflow: hidden;
      background: #1E293B;
    }

    .hero-board-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: top center;
    }

    .hero-board-footer {
      padding: 20px;
      background: #FFFFFF;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      font-size: 0.8125rem;
    }

    .hero-board-pill {
      background: #F1F5F9;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .hero-board-pill em {
      font-style: normal;
      color: var(--text-muted);
      font-size: 0.75rem;
    }

    .hero-board-pill b {
      color: var(--text-main);
      font-size: 0.9375rem;
    }

    /* 板块二：痛点剖析 */
    .challenges-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .challenge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }

    .challenge-card:hover {
      transform: translateY(-3px);
      border-color: #CBD5E1;
    }

    .challenge-alert-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: #DC2626;
      background: #FEF2F2;
      border: 1px solid #FEE2E2;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 16px;
    }

    .challenge-title {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .challenge-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块三：核心解决方案 */
    .solution-block {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .solution-layout {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 56px;
      align-items: center;
    }

    .solution-visual {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      background: #0B0F19;
    }

    .solution-visual img {
      width: 100%;
      height: auto;
      display: block;
    }

    .solution-content h3 {
      font-size: 1.75rem;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 20px;
    }

    .solution-content p {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .solution-specs {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 18px 20px;
      margin-bottom: 28px;
    }

    .solution-specs h4 {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .solution-specs h4::before {
      content: '';
      width: 4px;
      height: 14px;
      background: var(--accent-blue);
      border-radius: 2px;
    }

    .solution-specs ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 板块四：核心优势区 3x2 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card-num {
      font-size: 0.8125rem;
      font-weight: 800;
      font-family: monospace;
      color: var(--accent-blue);
      margin-bottom: 16px;
    }

    .feature-card-title {
      font-size: 1.1875rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-card-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块五：产品部署形态 */
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
    }

    .product-edition-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .product-edition-card.featured {
      border: 2px solid var(--accent);
      background: #FCFDFD;
      transform: translateY(-6px);
      box-shadow: 0 16px 32px -8px rgba(0, 210, 106, 0.12);
    }

    .featured-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #0B0F19;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 999px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .product-edition-card h3 {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .product-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 48px;
    }

    .product-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 32px;
      flex-grow: 1;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }

    .product-feature-list li {
      font-size: 0.875rem;
      color: var(--text-main);
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .product-feature-list li::before {
      content: '✓';
      color: #00994C;
      font-weight: 900;
    }

    /* 板块六：流程步骤 */
    .workflow-steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }

    .step-index {
      font-size: 2rem;
      font-weight: 900;
      color: #CBD5E1;
      font-family: monospace;
      line-height: 1;
      margin-bottom: 16px;
    }

    .step-title {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块七：深色沉浸式案例 */
    .dark-immersion-section {
      background: var(--bg-dark);
      color: #FFFFFF;
      padding: 96px 0;
      border-top: 1px solid #1E293B;
      border-bottom: 1px solid #1E293B;
    }

    .dark-immersion-section .section-title {
      color: #FFFFFF;
    }

    .dark-immersion-section .section-desc {
      color: #94A3B8;
    }

    .dark-case-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .dark-case-media {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-dark);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .dark-case-data-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 28px;
    }

    .dark-data-item {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      padding: 18px;
      border-radius: var(--radius-sm);
    }

    .dark-data-item strong {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--accent);
      font-family: monospace;
      display: block;
      margin-bottom: 4px;
    }

    .dark-data-item span {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* 板块八：实效故事 */
    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .story-media {
      height: 220px;
      overflow: hidden;
      background: #E2E8F0;
    }

    .story-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .story-body {
      padding: 28px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .story-header-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-blue);
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    .story-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .story-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .story-comparison {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      font-size: 0.8125rem;
    }

    .story-comparison span {
      display: block;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .story-comparison strong {
      color: var(--text-main);
      font-weight: 700;
    }

    /* 板块九：关键成果数据通栏 */
    .metrics-strip {
      background: #0F172A;
      color: #FFFFFF;
      padding: 48px 0;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }

    .metric-col strong {
      display: block;
      font-size: 2.75rem;
      font-weight: 900;
      font-family: monospace;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .metric-col p {
      font-size: 0.9375rem;
      font-weight: 600;
      color: #F8FAFC;
      margin-bottom: 4px;
    }

    .metric-col small {
      font-size: 0.75rem;
      color: #94A3B8;
    }

    /* 板块十：裁判团队评价反馈 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.9375rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 24px;
      position: relative;
    }

    .review-quote::before {
      content: '“';
      font-size: 2.5rem;
      color: #CBD5E1;
      line-height: 1;
      display: block;
      margin-bottom: -10px;
    }

    .reviewer-meta {
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .reviewer-name {
      font-weight: 700;
      font-size: 0.9375rem;
      color: var(--text-main);
    }

    .reviewer-role {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .review-badge {
      font-size: 0.6875rem;
      color: #0369A1;
      background: #E0F2FE;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      font-weight: 600;
    }

    /* 板块十一：资讯列表 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .insight-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
    }

    .insight-thumb {
      height: 190px;
      overflow: hidden;
      background: #E2E8F0;
    }

    .insight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .insight-card:hover .insight-thumb img {
      transform: scale(1.04);
    }

    .insight-info {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .insight-date {
      font-size: 0.75rem;
      color: var(--text-muted);
      font-family: monospace;
      margin-bottom: 8px;
    }

    .insight-title {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }

    .insight-excerpt {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 18px;
    }

    .insight-more-link {
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--accent-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块十二：FAQ 手风琴 */
    .faq-wrapper {
      max-width: 820px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #FFFFFF;
      margin-bottom: 14px;
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 24px 20px 24px;
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 板块十三：CTA 转化容器 */
    .cta-container-card {
      background: linear-gradient(135deg, #0B0F19 0%, #151D30 100%);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      color: #FFFFFF;
      border: 1px solid #1E293B;
      box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    }

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

    .cta-text-area h2 {
      font-size: clamp(1.85rem, 3vw, 2.45rem);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
      color: #FFFFFF;
    }

    .cta-text-area p {
      font-size: 0.95rem;
      color: #94A3B8;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cta-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.85rem;
      color: #CBD5E1;
    }

    .cta-checklist li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .cta-checklist li::before {
      content: '●';
      color: var(--accent);
      font-size: 0.65rem;
    }

    .cta-form-box {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(0,0,0,0.25);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      height: 44px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 0.875rem;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease;
      background: #F8FAFC;
    }

    .form-control:focus {
      border-color: var(--text-main);
      background: #FFFFFF;
    }

    .cta-submit-btn {
      width: 100%;
      height: 48px;
      background: var(--accent);
      color: #060911;
      font-weight: 800;
      font-size: 0.9375rem;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      margin-top: 8px;
      transition: background 0.2s ease;
    }

    .cta-submit-btn:hover {
      background: var(--accent-hover);
    }

    .form-tip {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-align: center;
      margin-top: 10px;
    }

    /* 页脚 */
    .site-footer {
      background: #060911;
      color: #94A3B8;
      border-top: 1px solid #1E293B;
      padding: 72px 0 28px;
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 56px;
    }

    .footer-brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .footer-desc {
      font-size: 0.8125rem;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 20px;
    }

    .footer-heading {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94A3B8;
      font-size: 0.8125rem;
    }

    .footer-links a:hover {
      color: #FFFFFF;
    }

    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.75rem;
      color: #64748B;
    }

    /* 移动端断点响应式 */
    @media (max-width: 1024px) {
      .hero-grid, .solution-layout, .dark-case-grid, .cta-inner-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .challenges-grid, .workflow-steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .features-grid, .products-grid, .insights-grid, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .section-padding {
        padding: 56px 0;
      }
      .statusbar-inner {
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
      }
      .nav-menu {
        display: none;
      }
      .mobile-menu-trigger {
        display: flex;
      }
      .challenges-grid, .workflow-steps-wrap, .story-grid, .metrics-grid {
        grid-template-columns: 1fr;
      }
      .hero-quick-data {
        grid-template-columns: 1fr;
      }
      .cta-container-card {
        padding: 36px 20px;
      }
      .cta-form-box {
        padding: 24px 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }