/* roulang page: index */
:root {
      --color-primary: #0D5A4C;
      --color-primary-dark: #0A4338;
      --color-primary-light: #167765;
      --color-secondary: #1F8A99;
      --color-accent: #E67E22;
      --color-accent-hover: #D35400;
      --color-dark-bg: #0A221E;
      --color-dark-surface: #10322D;
      --color-bg-light: #F7F9F8;
      --color-surface: #FFFFFF;
      --color-text-main: #1A2521;
      --color-text-muted: #42544F;
      --color-text-light: #758A84;
      --color-border: #E2E8E5;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 12px rgba(13, 90, 76, 0.05);
      --shadow-md: 0 10px 30px -5px rgba(13, 90, 76, 0.08);
      --shadow-lg: 0 20px 40px -10px rgba(10, 34, 30, 0.16);
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--color-text-main);
      background-color: var(--color-surface);
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: 1rem;
    }

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

    /* 顶部通栏实用信息与导航 */
    .topbar {
      background-color: #061916;
      color: #9ab4ae;
      font-size: 0.825rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 38px;
    }
    .topbar-info span {
      margin-right: 20px;
    }

    .navbar {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 15px rgba(0, 0, 0, 0.04);
      border-bottom: 1px solid var(--color-border);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: -0.5px;
    }
    .brand-badge {
      font-size: 0.7rem;
      background: rgba(13, 90, 76, 0.1);
      color: var(--color-primary);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      color: var(--color-text-main);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--color-primary);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--color-primary);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 12px 24px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 0.875rem;
    }
    .btn-lg {
      padding: 15px 32px;
      font-size: 1.05rem;
    }
    .btn-primary {
      background-color: var(--color-primary);
      color: #fff;
    }
    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(13, 90, 76, 0.25);
    }
    .btn-accent {
      background-color: var(--color-accent);
      color: #fff;
    }
    .btn-accent:hover {
      background-color: var(--color-accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(230, 126, 34, 0.25);
    }
    .btn-outline-white {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.4);
      color: #fff;
      backdrop-filter: blur(4px);
    }
    .btn-outline-white:hover {
      background: #fff;
      color: var(--color-primary);
    }

    /* 板块基类与统一排版 */
    .section {
      padding: 90px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--color-bg-light);
    }
    .section-white {
      background-color: var(--color-surface);
    }
    .section-dark {
      background-color: var(--color-dark-bg);
      color: #fff;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.825rem;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--color-secondary);
      background: rgba(31, 138, 153, 0.1);
      padding: 6px 14px;
      border-radius: 30px;
      margin-bottom: 14px;
    }
    .section-dark .section-tag {
      background: rgba(255, 255, 255, 0.1);
      color: #48cfb8;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 700;
      color: var(--color-text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
      line-height: 1.3;
    }
    .section-dark .section-title {
      color: #fff;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--color-text-muted);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: #9ab4ae;
    }

    /* 板块 1: Hero 全宽视频/大图官网遮罩 + 播放按钮 + 试用 CTA */
    .hero-section {
      position: relative;
      min-height: 85vh;
      display: flex;
      align-items: center;
      background: url('/assets/images/90e33a0e428d1c23.webp') center center / cover no-repeat;
      color: #fff;
      padding: 100px 0 120px 0;
      overflow: hidden;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(6, 31, 26, 0.92) 0%, rgba(13, 90, 76, 0.82) 65%, rgba(10, 34, 30, 0.95) 100%);
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.25);
      padding: 8px 18px;
      border-radius: 40px;
      font-size: 0.875rem;
      margin-bottom: 24px;
      backdrop-filter: blur(8px);
    }
    .hero-title {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -1px;
      text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }
    .hero-intro {
      font-size: 1.15rem;
      line-height: 1.8;
      color: #e0ece9;
      margin-bottom: 40px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }
    .video-play-btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #fff;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      cursor: pointer;
      backdrop-filter: blur(6px);
      transition: var(--transition);
    }
    .video-play-btn:hover {
      background: rgba(255, 255, 255, 0.25);
      transform: translateY(-2px);
    }
    .play-icon-circle {
      width: 28px;
      height: 28px;
      background: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-size: 0.75rem;
      padding-left: 2px;
    }

    /* 斜切装饰带 */
    .diagonal-cut {
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 100%;
      height: 50px;
      background: var(--color-surface);
      clip-path: polygon(0 100%, 100% 0, 100% 100%);
    }

    /* 板块 2: 痛点透视区 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .pain-card {
      background: #fff;
      border: 1px solid #ebf0ee;
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      border-top: 4px solid #d9534f;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .pain-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .pain-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: #d9534f;
      opacity: 0.35;
      margin-bottom: 8px;
    }
    .pain-card h3 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      color: var(--color-text-main);
    }
    .pain-card p {
      font-size: 0.925rem;
      color: var(--color-text-muted);
      line-height: 1.65;
    }

    /* 板块 3: 适用人群与业务业态区 */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .audience-card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .audience-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .audience-thumb {
      height: 200px;
      overflow: hidden;
    }
    .audience-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .audience-card:hover .audience-thumb img {
      transform: scale(1.05);
    }
    .audience-body {
      padding: 28px 24px;
    }
    .audience-body h3 {
      font-size: 1.25rem;
      margin-bottom: 10px;
      color: var(--color-primary);
    }
    .audience-body p {
      font-size: 0.95rem;
      color: var(--color-text-muted);
      margin-bottom: 18px;
    }
    .audience-features {
      list-style: none;
      border-top: 1px dashed var(--color-border);
      padding-top: 14px;
    }
    .audience-features li {
      font-size: 0.875rem;
      color: var(--color-text-muted);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .audience-features li::before {
      content: '✓';
      color: var(--color-secondary);
      font-weight: bold;
    }

    /* 板块 4: 谁适合 / 谁不适合 对比区 */
    .fit-comparison-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      border: 1px solid var(--color-border);
    }
    .fit-column {
      padding: 48px;
    }
    .fit-column.suitable {
      background: #f4faf8;
      border-right: 1px solid var(--color-border);
    }
    .fit-column.unsuitable {
      background: #fff9f8;
    }
    .fit-head {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
    }
    .fit-badge {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1.2rem;
    }
    .suitable .fit-badge {
      background: #d1f2e8;
      color: var(--color-primary);
    }
    .unsuitable .fit-badge {
      background: #fce8e6;
      color: #d9534f;
    }
    .fit-head h3 {
      font-size: 1.35rem;
    }
    .fit-list {
      list-style: none;
    }
    .fit-list li {
      margin-bottom: 18px;
      font-size: 0.95rem;
      line-height: 1.6;
    }
    .fit-list strong {
      display: block;
      color: var(--color-text-main);
      margin-bottom: 4px;
    }

    /* 板块 5: 景区管理软件品牌与架构概述 (可验证技术参数) */
    .overview-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .overview-content h3 {
      font-size: 1.85rem;
      margin-bottom: 20px;
      color: var(--color-text-main);
      line-height: 1.4;
    }
    .overview-content p {
      font-size: 1rem;
      color: var(--color-text-muted);
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .tech-metric-panel {
      background: #eef6f4;
      border-left: 4px solid var(--color-primary);
      padding: 18px 22px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      margin: 24px 0;
    }
    .tech-metric-panel .stat-row {
      display: flex;
      gap: 30px;
    }
    .stat-mini-item strong {
      display: block;
      font-size: 1.6rem;
      color: var(--color-primary);
      font-weight: 800;
    }
    .stat-mini-item span {
      font-size: 0.85rem;
      color: var(--color-text-light);
    }
    .overview-image {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    /* 板块 6: 核心优势矩阵 (6张网格卡片) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--color-secondary);
    }
    .matrix-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: rgba(13, 90, 76, 0.08);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
    }
    .matrix-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 0.925rem;
      color: var(--color-text-muted);
      line-height: 1.7;
    }

    /* 板块 7: 匹配方案与产品矩阵 (3张纵向对比卡) */
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      align-items: stretch;
    }
    .plan-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 2px solid var(--color-border);
      padding: 40px 32px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }
    .plan-card.featured {
      border-color: var(--color-primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.03);
      z-index: 2;
    }
    .plan-badge {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--color-accent);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 20px;
      letter-spacing: 1px;
    }
    .plan-card h3 {
      font-size: 1.5rem;
      margin-bottom: 10px;
      text-align: center;
    }
    .plan-subtitle {
      text-align: center;
      font-size: 0.9rem;
      color: var(--color-text-light);
      margin-bottom: 24px;
    }
    .plan-points {
      list-style: none;
      margin-bottom: 32px;
      flex-grow: 1;
    }
    .plan-points li {
      font-size: 0.925rem;
      color: var(--color-text-muted);
      margin-bottom: 12px;
      padding-left: 20px;
      position: relative;
    }
    .plan-points li::before {
      content: '●';
      position: absolute;
      left: 0;
      color: var(--color-primary);
      font-size: 0.75rem;
      top: 2px;
    }

    /* 板块 8: 深色沉浸式数智管控中枢 */
    .deep-control-banner {
      background: url('/assets/images/7b2352d5ae6ca5f4.webp') center center / cover no-repeat;
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      padding: 60px;
      box-shadow: var(--shadow-lg);
    }
    .deep-control-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(10, 34, 30, 0.96) 0%, rgba(10, 34, 30, 0.75) 100%);
    }
    .deep-control-content {
      position: relative;
      z-index: 2;
      max-width: 650px;
    }
    .deep-control-content h3 {
      font-size: 2rem;
      color: #fff;
      margin-bottom: 16px;
    }
    .deep-control-content p {
      font-size: 1.05rem;
      color: #b5cdc7;
      margin-bottom: 28px;
    }

    /* 板块 9: 落地实施步骤与场景时间线 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .timeline-steps::before {
      content: '';
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: #e2e8e5;
      z-index: 1;
    }
    .step-item {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 0 10px;
    }
    .step-num {
      width: 64px;
      height: 64px;
      background: #fff;
      border: 3px solid var(--color-primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--color-primary);
      margin: 0 auto 20px auto;
      box-shadow: var(--shadow-sm);
    }
    .step-item h4 {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }
    .step-item p {
      font-size: 0.9rem;
      color: var(--color-text-muted);
    }

    /* 板块 10: 关键运营数据统计条 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #fff;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 40px 30px;
      box-shadow: var(--shadow-sm);
    }
    .metric-box {
      text-align: center;
      padding: 0 15pxThe code generation halted prematurely, suggesting a potential limit or error during the `.php` file construction. Reviewing the truncated output reveals the beginning of CSS styling for a metrics bar, indicating the process was interrupted mid-section. Continuing the development of the `.php` file, specifically the unfinished CSS code.


    .metric-box h3 {\n        margin-bottom: 5px;\n        font-size: 1.2rem;\n        font-weight: 600;\n      }\n      .metric-box p {\n        font-size: 0.9rem;\n        color: var(--color-text-secondary);\n      }\n    .metrics-container {\n      display: flex;\n      justify-content: space-around;\n      flex-wrap: wrap;\n      gap: 20px;\n      margin-top: 20px;\n    }\n    @media (max-width: 768px) {\n      .metrics-container {\n        flex-direction: column;\n        align-items: center;\n      }\n      .metric-box {\n        width: 100%;\n      }\n    }\n