/* roulang page: index */
:root {
      --primary-deep: #0A3D2E;
      --accent-orange: #E87722;
      --accent-gold: #C9A96E;
      --bg-warm: #F9F7F2;
      --bg-dark: #06241B;
      --text-main: #1E1E1E;
      --text-secondary: #5A5A5A;
      --text-muted: #8A8A8A;
      --border-light: #E5E0D8;
      --success-teal: #2A9D8F;
      --card-shadow: 0 2px 8px rgba(0,0,0,0.04);
      --card-hover-shadow: 0 8px 30px rgba(0,0,0,0.08);
      --nav-shadow: 0 4px 20px rgba(0,0,0,0.06);
      --btn-hover-shadow: 0 4px 14px rgba(232,119,34,0.3);
      --radius-card: 16px;
      --radius-btn: 8px;
      --radius-sm: 10px;
      --font-global: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "WenQuanYi Micro Hei", "Inter", "Segoe UI", system-ui, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-global);
      background-color: var(--bg-warm);
      color: var(--text-main);
      line-height: 1.7;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

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

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

    h1, h2, h3, h4 {
      font-weight: 600;
      letter-spacing: -0.3px;
    }

    .container {
      max-width: 1200px;
      padding-left: 16px;
      padding-right: 16px;
    }

    /* 按钮系统 */
    .btn-agg-primary {
      background-color: var(--accent-orange);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 12px 28px;
      border: none;
      letter-spacing: 0.5px;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: none;
      font-size: 16px;
    }

    .btn-agg-primary:hover {
      background-color: #D4651F;
      color: white;
      box-shadow: var(--btn-hover-shadow);
      transform: scale(1.03);
    }

    .btn-agg-outline {
      background: transparent;
      border: 2px solid var(--primary-deep);
      color: var(--primary-deep);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 10px 26px;
      transition: all 0.3s ease;
      letter-spacing: 0.5px;
      font-size: 16px;
    }

    .btn-agg-outline:hover {
      background-color: rgba(10,61,46,0.05);
      color: var(--primary-deep);
      transform: translateY(-1px);
    }

    /* 导航卡片面板 */
    .navbar-agg {
      position: fixed;
      top: 16px;
      left: 50%;
      transform: translateX(-50%);
      width: 90%;
      max-width: 1200px;
      background: #FFFFFF;
      border-radius: var(--radius-card);
      box-shadow: var(--nav-shadow);
      padding: 10px 24px;
      z-index: 1000;
      display: flex;
      align-items: center;
      justify-content: space-between;
      backdrop-filter: blur(10px);
      transition: box-shadow 0.3s ease;
      border: 1px solid rgba(229,224,216,0.6);
    }

    .navbar-agg.scrolled {
      box-shadow: 0 8px 28px rgba(0,0,0,0.1);
    }

    .brand-logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary-deep);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo i {
      font-size: 26px;
      color: var(--accent-orange);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .nav-item-agg {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 8px 14px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      transition: all 0.2s;
      background: transparent;
      white-space: nowrap;
    }

    .nav-item-agg i {
      font-size: 16px;
      color: var(--accent-gold);
    }

    .nav-item-agg:hover {
      background: #F0EDE6;
      color: var(--primary-deep);
    }

    .nav-cta {
      margin-left: 16px;
    }

    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: #FFFFFF;
      border-top: 1px solid var(--border-light);
      box-shadow: 0 -4px 12px rgba(0,0,0,0.04);
      padding: 8px 12px;
      justify-content: space-around;
      z-index: 999;
      border-radius: 20px 20px 0 0;
    }

    .mobile-nav-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
      transition: 0.2s;
      font-weight: 500;
    }
    .mobile-nav-item i {
      font-size: 20px;
      margin-bottom: 2px;
    }
    .mobile-nav-item.active {
      color: var(--primary-deep);
    }

    /* Hero区域 */
    .hero-section {
      padding: 140px 0 80px;
      background: linear-gradient(135deg, #F9F7F2 0%, #F2EFE9 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-bg-image {
      position: absolute;
      right: 0;
      top: 0;
      width: 50%;
      height: 100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.9;
      mask-image: linear-gradient(to left, rgba(0,0,0,1) 60%, rgba(0,0,0,0));
      -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 60%, rgba(0,0,0,0));
    }

    .hero-title {
      font-size: 52px;
      font-weight: 700;
      line-height: 1.2;
      color: var(--primary-deep);
      letter-spacing: -0.8px;
    }

    .hero-sub {
      font-size: 18px;
      color: var(--text-secondary);
      margin: 20px 0 28px;
    }

    /* 板块通用 */
    .section-title {
      font-size: 38px;
      font-weight: 650;
      margin-bottom: 16px;
      color: var(--primary-deep);
    }

    .section-desc {
      color: var(--text-secondary);
      font-size: 17px;
      max-width: 700px;
    }

    .agg-card {
      background: #FFFFFF;
      border-radius: var(--radius-card);
      padding: 32px;
      border: 1px solid var(--border-light);
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
      height: 100%;
    }

    .agg-card:hover {
      box-shadow: var(--card-hover-shadow);
      transform: translateY(-6px);
      border-color: transparent;
    }

    .pain-card {
      border-left: 4px solid var(--primary-deep);
    }

    .stat-number {
      font-size: 48px;
      font-weight: 700;
      color: var(--success-teal);
      line-height: 1.1;
    }

    .testimonial-card {
      background: #FFFFFF;
      border-radius: 20px;
      padding: 30px;
      position: relative;
      box-shadow: var(--card-shadow);
    }
    .testimonial-card::before {
      content: "“";
      font-size: 64px;
      color: var(--accent-gold);
      position: absolute;
      top: 10px;
      left: 18px;
      opacity: 0.4;
    }

    .faq-item {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      margin-bottom: 12px;
      transition: 0.2s;
    }
    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      color: var(--text-secondary);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 24px 18px;
    }
    .faq-item.active {
      border-left: 4px solid var(--primary-deep);
    }

    .footer-agg {
      background: var(--bg-dark);
      color: #D0D0D0;
      padding: 60px 0 20px;
    }
    .footer-title {
      color: white;
      font-weight: 600;
      margin-bottom: 18px;
      font-size: 18px;
    }

    @media (max-width: 992px) {
      .navbar-agg .nav-links {
        display: none;
      }
      .mobile-bottom-nav {
        display: flex;
      }
      .hero-title {
        font-size: 38px;
      }
      .hero-bg-image {
        width: 100%;
        opacity: 0.15;
        mask-image: none;
      }
    }

    @media (max-width: 768px) {
      .section-title {
        font-size: 30px;
      }
    }