/* roulang page: index */
:root {
      --primary-dark: #0F1923;
      --secondary-dark: #111827;
      --deep-board: #0B0F17;
      --brand-green: #00FF87;
      --brand-cyan: #00E5FF;
      --accent-gradient: linear-gradient(135deg, #00FF87 0%, #00E5FF 100%);
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1200px;
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-body);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部政务/规范工具条 */
    .top-bar {
      background-color: #F1F5F9;
      height: 38px;
      border-bottom: 1px solid #E2E8F0;
      font-size: 12px;
      color: #64748B;
      display: flex;
      align-items: center;
    }

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

    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .top-status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #059669;
      font-weight: 500;
    }

    .top-status-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
    }

    /* 主导航栏 */
    .site-header {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 999;
      height: 68px;
    }

    .nav-container {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-icon {
      width: 36px;
      height: 36px;
      background: var(--primary-dark);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-green);
      font-weight: 900;
      font-size: 18px;
      border: 1px solid var(--border-dark);
      box-shadow: 0 2px 6px rgba(0, 255, 135, 0.2);
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

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

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 4px;
      position: relative;
    }

    .nav-links a:hover, .nav-links a.active {
      color: #0F172A;
      font-weight: 600;
    }

    .nav-links a:hover::after, .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--brand-green);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .btn-sm {
      padding: 6px 14px;
      font-size: 13px;
    }

    .btn-outline {
      background: transparent;
      color: var(--text-main);
      border-color: var(--border-color);
    }

    .btn-outline:hover {
      background: #F1F5F9;
      border-color: #CBD5E1;
    }

    .btn-primary {
      background: var(--primary-dark);
      color: #FFFFFF;
      border-color: #1E293B;
    }

    .btn-primary:hover {
      background: #1A2734;
      border-color: var(--brand-green);
      box-shadow: 0 4px 14px rgba(0, 255, 135, 0.25);
    }

    .btn-accent {
      background: var(--brand-green);
      color: #0B0F17;
      font-weight: 700;
    }

    .btn-accent:hover {
      background: #00E5FF;
      box-shadow: 0 4px 18px rgba(0, 229, 255, 0.35);
    }

    /* 板块通用体系 */
    .section {
      padding: 72px 0;
      position: relative;
    }

    .section-light {
      background-color: var(--bg-white);
      border-bottom: 1px solid var(--border-color);
    }

    .section-gray {
      background-color: #F8FAFC;
      border-bottom: 1px solid var(--border-color);
    }

    .section-dark {
      background-color: var(--deep-board);
      color: #F1F5F9;
      border-bottom: 1px solid #1E293B;
    }

    .section-header {
      margin-bottom: 48px;
    }

    .section-header.text-center {
      text-align: center;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #059669;
      background: rgba(16, 185, 129, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .section-dark .section-tag {
      color: var(--brand-green);
      background: rgba(0, 255, 135, 0.12);
      border: 1px solid rgba(0, 255, 135, 0.2);
    }

    .section-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

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

    .section-desc {
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.7;
    }

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

    /* 板块 1: Hero (矮版开发者/硬核控制台风格) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(0, 255, 135, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(0, 229, 255, 0.05) 0%, transparent 60%),
                  #0F1923;
      color: #FFFFFF;
      padding: 60px 0 70px;
      border-bottom: 1px solid #1E293B;
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 4px 12px;
      border-radius: 30px;
      font-size: 12px;
      color: #00FF87;
      margin-bottom: 18px;
    }

    .hero-title {
      font-size: 38px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
      color: #FFFFFF;
    }

    .hero-title span {
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-summary {
      font-size: 15px;
      color: #94A3B8;
      line-height: 1.75;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 32px;
    }

    .hero-metrics-pill {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 20px;
    }

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

    .hero-pill-item .num {
      font-size: 20px;
      font-weight: 800;
      color: var(--brand-green);
      font-family: monospace;
    }

    .hero-pill-item .lbl {
      font-size: 12px;
      color: #64748B;
    }

    /* 代码示意/参数控制台卡片 */
    .hero-console-card {
      background: #0B0F17;
      border: 1px solid #1E293B;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    }

    .console-header {
      background: #111827;
      padding: 10px 16px;
      border-bottom: 1px solid #1E293B;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #94A3B8;
      font-family: monospace;
    }

    .console-dots {
      display: flex;
      gap: 6px;
    }

    .console-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #334155;
    }

    .console-dot:nth-child(1) { background: #EF4444; }
    .console-dot:nth-child(2) { background: #F59E0B; }
    .console-dot:nth-child(3) { background: #10B981; }

    .console-body {
      padding: 20px;
      font-family: Consolas, Monaco, "Courier New", monospace;
      font-size: 13px;
      line-height: 1.6;
      color: #E2E8F0;
    }

    .code-comment { color: #64748B; }
    .code-key { color: #00E5FF; }
    .code-val { color: #00FF87; }
    .code-func { color: #F59E0B; }

    /* 板块 2: 问题陈述区 (#problems) */
    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .problem-card {
      background: #FFFFFF;
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .problem-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .problem-icon-alert {
      width: 36px;
      height: 36px;
      background: #FEE2E2;
      color: #DC2626;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }

    .problem-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
    }

    .problem-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块 3: 操作演示与引擎架构 (#operation-demo) */
    .split-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 44px;
      align-items: center;
    }

    .frame-wrapper {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      background: #000;
    }

    .frame-wrapper img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    .step-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .step-item {
      display: flex;
      gap: 16px;
    }

    .step-badge {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary-dark);
      color: var(--brand-green);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      flex-shrink: 0;
    }

    .step-content h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .step-content p {
      font-size: 14px;
      color: var(--text-body);
    }

    /* 板块 4: 结果预览与画质验证 (#results-preview) */
    .spec-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .spec-card {
      background: #111827;
      border: 1px solid #1E293B;
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .spec-value {
      font-size: 32px;
      font-weight: 900;
      color: var(--brand-cyan);
      font-family: monospace;
      margin-bottom: 6px;
    }

    .spec-title {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 8px;
    }

    .spec-desc {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.5;
    }

    /* 板块 5: 核心能力矩阵 (#features) */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: all 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #059669;
    }

    .feature-icon-box {
      width: 44px;
      height: 44px;
      background: #F1F5F9;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      font-weight: 800;
      margin-bottom: 18px;
      font-size: 18px;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块 6: 常见卡住点排查 (#stuck-points) */
    .checklist-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .checklist-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .checklist-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .checklist-icon {
      color: #059669;
      font-weight: 800;
    }

    .checklist-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块 7: 创作者成功路径 (#success-path) */
    .timeline-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .timeline-node {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      position: relative;
    }

    .node-index {
      font-size: 12px;
      font-weight: 800;
      color: #059669;
      margin-bottom: 8px;
      display: block;
    }

    .timeline-node h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .timeline-node p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 板块 8: 热门产品及版本对比 (#editions) */
    .editions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      align-items: stretch;
    }

    .edition-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }

    .edition-card.featured {
      border: 2px solid #00FF87;
      box-shadow: 0 8px 30px rgba(0, 255, 135, 0.15);
      background: #FCFDFE;
    }

    .edition-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--brand-green);
      color: #0B0F17;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 4px;
    }

    .edition-header {
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
    }

    .edition-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .edition-tagline {
      font-size: 13px;
      color: var(--text-muted);
    }

    .edition-specs {
      list-style: none;
      margin-bottom: 24px;
      flex-grow: 1;
    }

    .edition-specs li {
      font-size: 14px;
      color: var(--text-body);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .edition-specs li::before {
      content: "✓";
      color: #059669;
      font-weight: 800;
    }

    /* 板块 9: 关键运行数据统计条 (#metrics) */
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .metric-bar-item {
      padding: 24px;
      background: #111827;
      border: 1px solid #1E293B;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .metric-big-number {
      font-size: 36px;
      font-weight: 900;
      font-family: monospace;
      color: var(--brand-green);
      margin-bottom: 4px;
    }

    .metric-label-title {
      font-size: 14px;
      color: #E2E8F0;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .metric-sub-desc {
      font-size: 12px;
      color: #94A3B8;
    }

    /* 板块 10: 真实创作者评价 (#testimonials) */
    .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: 28px;
      box-shadow: var(--shadow-sm);
    }

    .review-stars {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #0F1923;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
font-weight: 700;
      font-size: 14px;
    }

    .reviewer-meta h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .reviewer-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 11: 资讯与技术指南 (#news-guide) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .news-card-img {
      height: 180px;
      width: 100%;
      overflow: hidden;
      background: #0F1923;
    }

    .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(1.05);
    }

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

    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-card-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-card-desc {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    /* 板块 12: 常见解答手风琴 (#faq) */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 28px;
    }

    .faq-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .faq-item h4::before {
      content: "Q";
      color: #059669;
      font-weight: 900;
      font-size: 17px;
    }

    .faq-item p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.7;
      padding-left: 24px;
    }

    /* 板块 13: 技术服务保障与合规承诺 (#guarantee) */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .guarantee-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .guarantee-icon {
      width: 48px;
      height: 48px;
      background: #ECFDF5;
      color: #059669;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-size: 20px;
      font-weight: 800;
    }

    .guarantee-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .guarantee-item p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 板块 14: 底部收口行动区 (#cta-bottom) */
    .bottom-cta-card {
      background: radial-gradient(circle at 50% 0%, rgba(0, 255, 135, 0.15) 0%, transparent 70%), #0F1923;
      border: 1px solid #1E293B;
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .bottom-cta-card h2 {
      font-size: 32px;
      font-weight: 900;
      color: #FFFFFF;
      margin-bottom: 16px;
    }

    .bottom-cta-card p {
      font-size: 15px;
      color: #94A3B8;
      max-width: 680px;
      margin: 0 auto 30px;
      line-height: 1.7;
    }

    .bottom-cta-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
    }

    /* 页脚系统规范 */
    .site-footer {
      background: #0B0F17;
      color: #94A3B8;
      border-top: 1px solid #1E293B;
      padding: 60px 0 30px;
      font-size: 13px;
    }

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

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-desc {
      line-height: 1.7;
      margin-top: 12px;
      color: #64748B;
    }

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

    .footer-links a:hover {
      color: var(--brand-green);
    }

    .footer-contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      line-height: 1.6;
    }

    .footer-contact-list span {
      color: #FFFFFF;
      font-weight: 500;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: #64748B;
      font-size: 12px;
    }

    /* 移动端常驻固定转化条 */
    .fixed-mobile-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 25, 35, 0.95);
      backdrop-filter: blur(8px);
      border-top: 1px solid #1E293B;
      padding: 10px 16px;
      z-index: 998;
      align-items: center;
      justify-content: space-between;
    }

    .fixed-bar-info {
      display: flex;
      flex-direction: column;
    }

    .fixed-bar-title {
      font-size: 13px;
      font-weight: 700;
      color: #FFFFFF;
    }

    .fixed-bar-sub {
      font-size: 11px;
      color: var(--brand-green);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .problem-grid { grid-template-columns: repeat(2, 1fr); }
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .timeline-wrap { grid-template-columns: repeat(2, 1fr); }
      .spec-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-bar-grid { grid-template-columns: repeat(2, 1fr); }
      .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-links { display: none; }
      .split-layout { grid-template-columns: 1fr; }
      .editions-grid { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .problem-grid { grid-template-columns: 1fr; }
      .checklist-grid { grid-template-columns: 1fr; }
      .features-grid { grid-template-columns: 1fr; }
      .timeline-wrap { grid-template-columns: 1fr; }
      .spec-grid { grid-template-columns: 1fr; }
      .metrics-bar-grid { grid-template-columns: 1fr; }
      .guarantee-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-title { font-size: 28px; }
      .hero-actions { flex-direction: column; align-items: flex-start; }
      .bottom-cta-actions { flex-direction: column; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
      .fixed-mobile-bar { display: flex; }
      body { padding-bottom: 60px; }
    }