/* roulang page: index */
:root {
      --bg-dark: #12161A;
      --bg-surface-dark: #1A2026;
      --bg-surface-card: #222A32;
      --bg-light: #F7F8FA;
      --bg-card-light: #FFFFFF;
      --primary-gold: #D4A359;
      --gold-hover: #B8860B;
      --radar-green: #10B981;
      --radar-red: #EF4444;
      --text-dark: #1E242B;
      --text-muted: #5A6578;
      --text-light: #ECEFF3;
      --text-light-muted: #8E9BAE;
      --border-color: #E2E8F0;
      --border-dark: #2A3440;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-soft: 0 4px 20px -2px rgba(18, 22, 26, 0.06);
      --shadow-hover: 0 12px 30px -4px rgba(212, 163, 89, 0.15);
      --font-main: "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      --font-mono: "JetBrains Mono", Consolas, Monaco, monospace;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部双行导航 */
    .top-bar {
      background-color: #0B0E11;
      color: var(--text-light-muted);
      font-size: 12px;
      border-bottom: 1px solid var(--border-dark);
      padding: 6px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-left span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-right: 20px;
    }
    .live-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--radar-green);
      box-shadow: 0 0 6px var(--radar-green);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.4; }
    }

    .main-nav {
      background-color: var(--bg-dark);
      border-bottom: 1px solid var(--border-dark);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #FFF;
      font-size: 19px;
      font-weight: 700;
      letter-spacing: 0.5px;
    }
    .brand-mark {
      background: linear-gradient(135deg, var(--primary-gold), #8A6520);
      color: #FFF;
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-family: var(--font-mono);
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      box-shadow: 0 2px 8px rgba(212, 163, 89, 0.3);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      color: var(--text-light);
      font-size: 14px;
      font-weight: 500;
      position: relative;
      padding: 8px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary-gold);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-gold);
      transition: width 0.25s ease;
    }
    .nav-links a:hover::after, .nav-links a.active::after {
      width: 100%;
    }
    .nav-action .btn-primary {
      padding: 9px 20px;
      font-size: 13px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      white-space: nowrap;
      text-align: center;
      border: 1px solid transparent;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary-gold), var(--gold-hover));
      color: #000;
      box-shadow: 0 4px 14px rgba(212, 163, 89, 0.25);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #E2B56F, var(--primary-gold));
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(212, 163, 89, 0.35);
    }
    .btn-outline {
      border: 1px solid var(--border-dark);
      background-color: transparent;
      color: var(--text-light);
    }
    .btn-outline:hover {
      border-color: var(--primary-gold);
      color: var(--primary-gold);
      background-color: rgba(212, 163, 89, 0.05);
    }
    .btn-dark {
      background-color: var(--bg-surface-card);
      color: var(--text-light);
      border: 1px solid var(--border-dark);
    }
    .btn-dark:hover {
      border-color: var(--primary-gold);
      color: #FFF;
    }

    /* 徽章与标签 */
    .badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 4px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .badge-gold {
      background-color: rgba(212, 163, 89, 0.15);
      color: var(--primary-gold);
      border: 1px solid rgba(212, 163, 89, 0.3);
    }
    .badge-green {
      background-color: rgba(16, 185, 129, 0.12);
      color: var(--radar-green);
      border: 1px solid rgba(16, 185, 129, 0.3);
    }

    /* 全局板块基础样式 */
    .site-section {
      padding: 72px 0;
      position: relative;
    }
    .section-title-wrap {
      margin-bottom: 40px;
    }
    .section-subtitle {
      font-size: 13px;
      color: var(--primary-gold);
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      display: block;
      margin-bottom: 6px;
    }
    .section-heading {
      font-size: 28px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-dark);
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      margin-top: 10px;
      max-width: 780px;
    }

    /* 深色区块修饰 */
    .dark-theme {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }
    .dark-theme .section-heading {
      color: #FFF;
    }
    .dark-theme .section-desc {
      color: var(--text-light-muted);
    }

    /* Block 01: Hero 优惠券墙主视觉蓝图 */
    .hero-section {
      background: linear-gradient(180deg, #12161A 0%, #171D22 100%);
      color: #FFF;
      padding: 50px 0 60px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-dark);
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/3519ba62b393362c.png');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      pointer-events: none;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 36px;
      align-items: center;
      position: relative;
      z-index: 1;
    }
    .hero-content h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.28;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
      color: #FFF;
    }
    .hero-content h1 span {
      background: linear-gradient(90deg, #FFF 0%, var(--primary-gold) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 15px;
      color: var(--text-light-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .hero-stats-row {
      display: flex;
      gap: 20px;
      margin-bottom: 28px;
    }
    .hero-stat-item {
      border-left: 2px solid var(--primary-gold);
      padding-left: 12px;
    }
    .hero-stat-val {
      font-family: var(--font-mono);
      font-size: 22px;
      font-weight: 700;
      color: #FFF;
    }
    .hero-stat-label {
      font-size: 12px;
      color: var(--text-light-muted);
    }

    /* 蓝图：优惠券墙入口主券面放大组件 */
    .coupon-showcase-panel {
      background: var(--bg-surface-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 16px 36px rgba(0,0,0,0.4);
      position: relative;
    }
    .mega-coupon-card {
      background: linear-gradient(135deg, #2A1F0E 0%, #1A2026 100%);
      border: 1px dashed var(--primary-gold);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      overflow: hidden;
    }
    .mega-coupon-card::before, .mega-coupon-card::after {
      content: '';
      position: absolute;
      width: 18px;
      height: 18px;
      background: var(--bg-surface-dark);
      border-radius: 50%;
      top: 50%;
      transform: translateY(-50%);
    }
    .mega-coupon-card::before { left: -9px; }
    .mega-coupon-card::after { right: -9px; }
    .coupon-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
      border-bottom: 1px solid rgba(212, 163, 89, 0.2);
      padding-bottom: 10px;
    }
    .coupon-title {
      font-size: 16px;
      font-weight: 700;
      color: #FFF;
    }
    .coupon-value {
      font-family: var(--font-mono);
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-gold);
      line-height: 1;
    }
    .coupon-value small {
      font-size: 14px;
      font-weight: 500;
      margin-left: 2px;
    }
    .coupon-desc {
      font-size: 13px;
      color: var(--text-light-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .coupon-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-light-muted);
      margin-bottom: 16px;
    }
    .coupon-btn {
      width: 100%;
      padding: 12px;
      font-size: 14px;
    }

    /* 蓝图：券面网格（3联） */
    .coupon-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    .mini-coupon {
      background: var(--bg-surface-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 14px;
      transition: all 0.2s ease;
    }
    .mini-coupon:hover {
      border-color: var(--primary-gold);
      transform: translateY(-2px);
    }
    .mini-coupon-val {
      font-family: var(--font-mono);
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-gold);
      margin-bottom: 4px;
    }
    .mini-coupon-name {
      font-size: 13px;
      font-weight: 600;
      color: #FFF;
      margin-bottom: 6px;
    }
    .mini-coupon-cond {
      font-size: 11px;
      color: var(--text-light-muted);
      margin-bottom: 10px;
    }

    /* Block 02: 行业痛点断层剖析 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .pain-card {
      background-color: var(--bg-card-light);
      border: 1px solid var(--border-color);
      border-top: 3px solid #DC2626;
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-soft);
      transition: transform 0.25s ease;
    }
    .pain-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.06);
    }
    .pain-card h3 {
      font-size: 17px;
      color: var(--text-dark);
      margin: 12px 0 10px;
      font-weight: 700;
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .pain-tag {
      font-size: 12px;
      font-weight: 700;
      color: #DC2626;
      background: #FEE2E2;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
    }

    /* Block 03: 解决方案与核心技术 */
    .solution-box {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-soft);
    }
    .solution-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .spec-list {
      list-style: none;
      margin-top: 18px;
    }
    .spec-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
      color: var(--text-dark);
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .spec-icon {
      color: var(--radar-green);
      font-weight: 700;
      flex-shrink: 0;
    }
    .tech-quote-badge {
      background: #F0FDF4;
      border: 1px solid #BBF7D0;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: #166534;
      margin-top: 18px;
      line-height: 1.6;
    }

    /* 蓝图顺序映射：Block 04: 已上线能力 (6维核心优势) */
    .feature-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .feature-card {
      background: var(--bg-card-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.25s ease;
      position: relative;
    }
    .feature-card:hover {
      border-color: var(--primary-gold);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-idx {
      font-family: var(--font-mono);
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-gold);
      margin-bottom: 10px;
      display: block;
    }
    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 蓝图顺序映射：Block 05: 进行中技术攻坚 (3大专项分析引擎) */
    .ongoing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .engine-card {
      background: var(--bg-surface-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      color: #FFF;
      display: flex;
      flex-direction: column;
    }
    .engine-header {
      padding: 22px;
      border-bottom: 1px solid var(--border-dark);
      background: rgba(255,255,255,0.02);
    }
    .engine-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin: 10px 0 6px;
      color: #FFF;
    }
    .engine-body {
      padding: 22px;
      flex-grow: 1;
    }
    .engine-body p {
      font-size: 14px;
      color: var(--text-light-muted);
      margin-bottom: 16px;
      line-height: 1.65;
    }
    .progress-bar-wrap {
      margin-top: 14px;
    }
    .progress-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-light-muted);
      margin-bottom: 6px;
      font-family: var(--font-mono);
    }
    .progress-track {
      width: 100%;
      height: 6px;
      background: #252D37;
      border-radius: 3px;
      overflow: hidden;
    }
    .progress-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--primary-gold), var(--radar-green));
      border-radius: 3px;
    }

    /* Block 06: 深色战术推演步骤方法论 */
    .steps-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
      position: relative;
    }
    .step-card {
      background: var(--bg-surface-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
    }
    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(212, 163, 89, 0.15);
      color: var(--primary-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-family: var(--font-mono);
      font-weight: 700;
      margin-bottom: 14px;
      border: 1px solid var(--primary-gold);
    }
    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #FFF;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-light-muted);
      line-height: 1.6;
    }

    /* Block 07: 标杆长线运营成果数据指标条 */
    .metrics-bar-section {
      background: #0E1216;
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 45px 0;
    }
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-col {
      padding: 0 15px;
      border-right: 1px solid rgba(255,255,255,0.08);
    }
    .metric-col:last-child {
      border-right: none;
    }
    .metric-number {
      font-family: var(--font-mono);
      font-size: 36px;
      font-weight: 800;
      color: var(--primary-gold);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-title {
      font-size: 14px;
      font-weight: 600;
      color: #FFF;
      margin-bottom: 4px;
    }
    .metric-desc {
      font-size: 12px;
      color: var(--text-light-muted);
    }

    /* Block 08: 研运团队真实商业落地故事 */
    .stories-wrap {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 30px;
    }
    .story-hero-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-soft);
    }
    .story-hero-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin: 12px 0;
      color: var(--text-dark);
    }
    .story-hero-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .story-review-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .review-item {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    .review-text {
      font-size: 13px;
      color: var(--text-dark);
      line-height: 1.6;
      margin-bottom: 10px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
    }
    .reviewer-role {
      font-weight: 600;
      color: var(--primary-gold);
    }

    /* 蓝图顺序映射：Block 09: 规划中研运场景与客群矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .scenario-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.25s ease;
    }
    .scenario-card:hover {
      border-color: var(--primary-gold);
      transform: translateY(-3px);
      box-shadow: var(--shadow-soft);
    }
    .scenario-tag {
      font-size: 11px;
      font-weight: 700;
      color: var(--primary-gold);
      background: rgba(212, 163, 89, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }
    .scenario-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }
    .scenario-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 蓝图顺序映射：Block 10: 更新日志 (Changelog) */
    .changelog-box {
      background: var(--bg-surface-dark);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 30px;
    }
    .log-item {
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 24px;
      padding: 18px 0;
      border-bottom: 1px solid var(--border-dark);
    }
    .log-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .log-ver {
      font-family: var(--font-mono);
      font-size: 15px;
      font-weight: 700;
      color: var(--primary-gold);
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .log-date {
      font-size: 12px;
      color: var(--text-light-muted);
      font-weight: normal;
    }
    .log-content h4 {
      font-size: 15px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 6px;
    }
    .log-content p {
      font-size: 13px;
      color: var(--text-light-muted);
      line-height: 1.6;
    }

    /* 蓝图顺序映射：Block 11: 资讯与策略研报摘要 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .insight-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-soft);
      transition: transform 0.25s ease;
    }
    .insight-card:hover {
      transform: translateY(-4px);
    }
    .insight-img-wrap {
      height: 160px;
      overflow: hidden;
      background-color: #1A2026;
    }
    .insight-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .insight-card:hover .insight-img-wrap img {
      transform: scale(1.05);
    }
    .insight-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .insight-body h3 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .insight-body p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }
    .insight-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-gold);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 蓝图顺序映射：Block 12: 订阅更新与收口行动区 */
    .cta-subscribe-box {
      background: linear-gradient(135deg, #182028 0%, #101418 100%);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 44px;
      color: #FFF;
      position: relative;
      overflow: hidden;
    }
    .cta-subscribe-inner {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 1;
    }
    .cta-subscribe-inner h2 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #FFF;
    }
    .cta-subscribe-inner p {
      font-size: 14px;
      color: var(--text-light-muted);
      margin-bottom: 26px;
      line-height: 1.65;
    }
    .subscribe-form {
      display: flex;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto 16px;
    }
    .subscribe-input {
      flex-grow: 1;
      background: #0B0E11;
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #FFF;
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }
    .subscribe-input:focus {
      border-color: var(--primary-gold);
    }
    .form-tips {
      font-size: 12px;
      color: var(--text-light-muted);
    }

    /* 页脚统合区 */
    .site-footer {
      background-color: #0B0E11;
      color: var(--text-light-muted);
      border-top: 1px solid var(--border-dark);
      padding: 50px 0 24px;
      font-size: 13px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brand-desc {
      font-size: 13px;
      color: var(--text-light-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .footer-heading {
      font-size: 14px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a:hover {
      color: var(--primary-gold);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12px;
    }
    .footer-bottom a:hover {
      color: #FFF;
    }

    /* 移动端菜单与交互 */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #FFF;
      font-size: 22px;
      cursor: pointer;
    }

    @media (max-width: 1024px) {
      .hero-grid, .solution-split, .stories-wrap {
        grid-template-columns: 1fr;
      }
      .coupon-grid, .pain-grid, .feature-grid-6, .ongoing-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-timeline, .metrics-row, .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-col {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.08);
        padding: 16px 0;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-action {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .coupon-grid, .pain-grid, .feature-grid-6, .ongoing-grid, .insights-grid, .steps-timeline, .scenario-grid {
        grid-template-columns: 1fr;
      }
      .log-item {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .subscribe-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-content h1 {
        font-size: 26px;
      }
    }