/* roulang page: index */
:root {
      --primary-dark: #0B1E16;
      --primary-green: #0F5132;
      --secondary-green: #198754;
      --accent-orange: #FF6B00;
      --accent-orange-hover: #E05E00;
      --bg-light: #F8FAF9;
      --bg-alt: #EFF3F1;
      --text-main: #1A201C;
      --text-muted: #526057;
      --border-color: #DCE3DF;
      --shadow-sm: 0 2px 8px rgba(15, 81, 50, 0.06);
      --shadow-lg: 0 12px 24px rgba(15, 81, 50, 0.12);
      --radius-sm: 6px;
      --radius-card: 10px;
    }

    * { box-sizing: border-box; }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary-green); text-decoration: none; transition: all 0.3s ease; }
    a:hover { color: var(--accent-orange); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部招投标与采购公示行 */
    .tender-bar {
      background-color: #E2ECE6;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.82rem;
      padding: 0.45rem 0;
      color: var(--text-muted);
    }
    .tender-badge {
      background-color: var(--accent-orange);
      color: #fff;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 0.75rem;
      font-weight: 600;
      margin-right: 8px;
      display: inline-block;
    }

    /* 主导航 */
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: var(--shadow-sm);
    }
    .brand-logo {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 0.8rem 0;
    }
    .brand-logo i { color: var(--secondary-green); font-size: 1.6rem; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.5rem;
      list-style: none;
      margin: 0;
      padding: 0;
      height: 100%;
    }
    .nav-links a {
      font-weight: 500;
      color: var(--text-main);
      font-size: 0.95rem;
      padding: 0.5rem 0;
      position: relative;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary-green);
    }
    .btn-action {
      background-color: var(--accent-orange);
      color: #fff !important;
      padding: 0.6rem 1.4rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      display: inline-block;
      box-shadow: 0 4px 10px rgba(255, 107, 0, 0.25);
    }
    .btn-action:hover {
      background-color: var(--accent-orange-hover);
      box-shadow: 0 6px 14px rgba(255, 107, 0, 0.35);
    }
    .btn-secondary {
      background-color: transparent;
      border: 2px solid var(--primary-green);
      color: var(--primary-green) !important;
      padding: 0.5rem 1.3rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      display: inline-block;
    }
    .btn-secondary:hover {
      background-color: var(--primary-green);
      color: #fff !important;
    }

    /* 板块通用标准 */
    .app-section {
      padding: 5.5rem 0;
      position: relative;
    }
    .bg-light { background-color: var(--bg-light); }
    .bg-alt { background-color: var(--bg-alt); }
    .bg-dark { background-color: var(--primary-dark); color: #fff; }

    .section-title-wrap {
      margin-bottom: 3.5rem;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 0.85rem;
      color: var(--primary-dark);
    }
    .bg-dark .section-title { color: #fff; }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }
    .bg-dark .section-subtitle { color: #A6B8AE; }

    /* Hero：众筹预热/拼团转化结构 */
    .hero-banner {
      background: linear-gradient(rgba(11, 30, 22, 0.88), rgba(15, 81, 50, 0.92)), url('/assets/images/b5428fb8640fdc16.jpg') center/cover no-repeat;
      color: #fff;
      padding: 5.5rem 0 6rem;
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 1.25rem;
      letter-spacing: -0.02em;
    }
    .hero-desc {
      font-size: 1.15rem;
      line-height: 1.8;
      color: #E2ECE6;
      margin-bottom: 2rem;
    }
    .crowd-panel {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
      padding: 2rem;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-lg);
    }
    .progress-bar-wrap {
      background: rgba(255, 255, 255, 0.2);
      border-radius: 20px;
      height: 14px;
      overflow: hidden;
      margin: 1.2rem 0 0.8rem;
    }
    .progress-bar-fill {
      background: linear-gradient(90deg, #198754, #FF6B00);
      height: 100%;
      width: 86%;
    }
    .crowd-stats {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 1.2rem;
      margin-top: 1.2rem;
    }
    .crowd-stat-val { font-size: 1.5rem; font-weight: 700; color: #fff; }
    .crowd-stat-lbl { font-size: 0.85rem; color: #A6B8AE; }

    /* 通用卡片容器 */
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-card);
      padding: 2rem;
      height: 100%;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-sm);
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: var(--secondary-green);
    }
    .card-icon {
      font-size: 2.2rem;
      color: var(--primary-green);
      margin-bottom: 1.2rem;
      display: inline-block;
    }

    /* 结果对比表格 */
    .compare-box {
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .compare-header {
      background: var(--bg-alt);
      padding: 1.2rem 1.5rem;
      font-weight: 700;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-row {
      display: flex;
      border-bottom: 1px solid var(--border-color);
      padding: 1.2rem 1.5rem;
      align-items: center;
    }
    .compare-row:last-child { border-bottom: none; }
    .compare-col-param { width: 30%; font-weight: 600; color: var(--text-main); }
    .compare-col-trad { width: 35%; color: #8C9690; }
    .compare-col-modern { width: 35%; color: var(--primary-green); font-weight: 600; }

    /* 演进时间轴 */
    .timeline-wrap {
      position: relative;
      padding: 1.5rem 0;
    }
    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 0;
      bottom: 0;
      width: 2px;
      background: var(--border-color);
      transform: translateX(-50%);
    }
    .timeline-node {
      position: relative;
      margin-bottom: 2.5rem;
    }
    .timeline-badge {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--secondary-green);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      position: absolute;
      left: 50%;
      top: 0;
      transform: translateX(-50%);
      z-index: 2;
      font-size: 0.8rem;
    }

    /* 资讯卡片与图片容器 */
    .media-card {
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .media-img-wrap {
      height: 190px;
      overflow: hidden;
      position: relative;
    }
    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-img-wrap img {
      transform: scale(1.06);
    }
    .media-body {
      padding: 1.5rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .media-tag {
      font-size: 0.75rem;
      background: #E8F3EE;
      color: var(--primary-green);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
      display: inline-block;
      margin-bottom: 0.75rem;
    }

    /* 页脚 */
    .site-footer {
      background-color: var(--primary-dark);
      color: #A6B8AE;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 0.9rem;
    }
    .footer-title {
      color: #fff;
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 1.25rem;
    }
    .footer-links { list-style: none; margin: 0; padding: 0; }
    .footer-links li { margin-bottom: 0.6rem; }
    .footer-links a { color: #A6B8AE; }
    .footer-links a:hover { color: #fff; }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      margin-top: 3.5rem;
      font-size: 0.85rem;
    }

    /* 响应式调整 */
    @media print, screen and (max-width: 63.99875em) {
      .hero-h1 { font-size: 2.2rem; }
      .app-section { padding: 4rem 0; }
      .timeline-wrap::before { left: 20px; }
      .timeline-badge { left: 20px; }
      .timeline-node .grid-x { margin-left: 45px; }
    }