/* roulang page: index */
:root {
      --deep-green: #1A3C34;
      --vivid-orange: #E85D04;
      --orange-hover: #C94D00;
      --bg-white: #FAFAFA;
      --card-white: #FFFFFF;
      --text-primary: #2D2D2D;
      --text-secondary: #6B6B6B;
      --border-light: #E5E5E5;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
      --radius-card: 12px;
      --radius-btn: 8px;
      --transition-base: all 0.25s ease;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
    }

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-white);
      color: var(--text-primary);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 导航卡片面板 */
    .nav-panel {
      position: fixed;
      top: 16px;
      left: 50%;
      transform: translateX(-50%);
      width: calc(100% - 32px);
      max-width: 1200px;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 2px 12px rgba(0,0,0,0.06);
      border-radius: 20px;
      padding: 0 28px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      z-index: 99;
      transition: var(--transition-base);
    }

    .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--deep-green);
      letter-spacing: 1px;
    }
    .logo i {
      color: var(--vivid-orange);
      margin-right: 6px;
    }

    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .nav-links a {
      font-size: 16px;
      font-weight: 500;
      color: var(--deep-green);
      padding: 6px 0;
      border-bottom: 2px solid transparent;
      transition: var(--transition-base);
    }
    .nav-links a:hover {
      color: var(--vivid-orange);
      border-bottom-color: var(--vivid-orange);
    }

    .nav-cta {
      background: var(--vivid-orange);
      color: white !important;
      padding: 10px 22px;
      border-radius: 40px;
      font-weight: 600;
      font-size: 15px;
      height: 42px;
      display: flex;
      align-items: center;
      border: none;
      transition: var(--transition-base);
    }
    .nav-cta:hover {
      background: var(--orange-hover);
      color: white;
    }

    .hamburger {
      display: none;
      font-size: 28px;
      color: var(--deep-green);
      cursor: pointer;
    }

    section {
      padding: 100px 0;
    }

    .section-title {
      font-size: 32px;
      font-weight: 600;
      color: var(--deep-green);
      margin-bottom: 20px;
      position: relative;
      display: inline-block;
    }
    .section-title::after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 40px;
      height: 3px;
      background: var(--vivid-orange);
      border-radius: 2px;
    }

    .btn-primary {
      background: var(--vivid-orange);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      height: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: none;
      transition: var(--transition-base);
      box-shadow: 0 4px 10px rgba(232,93,4,0.2);
    }
    .btn-primary:hover {
      background: var(--orange-hover);
      box-shadow: 0 6px 16px rgba(232,93,4,0.3);
      color: white;
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--deep-green);
      color: var(--deep-green);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 12px 32px;
      height: 50px;
      display: inline-flex;
      align-items: center;
      transition: var(--transition-base);
    }
    .btn-outline:hover {
      background: rgba(26,60,52,0.06);
    }

    .card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      padding: 28px 24px;
      transition: var(--transition-base);
      height: 100%;
    }
    .card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    /* Hero */
    #hero {
      padding-top: 140px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-title {
      font-size: 48px;
      font-weight: 700;
      line-height: 1.2;
      color: var(--deep-green);
      margin-bottom: 20px;
    }
    .hero-sub {
      font-size: 18px;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }
    .hero-visual {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 380px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(26,60,52,0.8) 0%, rgba(26,60,52,0.2) 100%);
    }
    .live-card {
      position: relative;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(8px);
      border-radius: 16px;
      padding: 24px 28px;
      width: 85%;
      box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    }
    .live-teams {
      display: flex;
      justify-content: space-between;
      font-weight: 700;
      font-size: 20px;
      color: var(--deep-green);
    }
    .live-score {
      font-size: 40px;
      font-weight: 700;
      color: var(--vivid-orange);
      text-align: center;
      margin: 8px 0;
    }
    .progress-bar {
      background: #e0e0e0;
      height: 6px;
      border-radius: 4px;
      margin-top: 12px;
    }
    .progress-fill {
      width: 72%;
      height: 100%;
      background: var(--vivid-orange);
      border-radius: 4px;
    }

    /* 亮点网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 28px;
    }
    .icon-circle {
      width: 56px;
      height: 56px;
      background: rgba(232,93,4,0.1);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--vivid-orange);
      font-size: 26px;
    }

    /* 案例瀑布 */
    .waterfall {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .waterfall-left, .waterfall-right {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .waterfall-right {
      margin-top: 40px;
    }
    .report-card {
      background: var(--card-white);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
    }
    .report-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .report-img {
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    .report-body {
      padding: 20px;
    }
    .tag {
      background: var(--vivid-orange);
      color: white;
      font-size: 13px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 8px;
    }

    /* 对比表 */
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: white;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table th {
      background: #F5F5F5;
      padding: 18px;
      font-weight: 600;
      color: var(--deep-green);
    }
    .compare-table td {
      padding: 16px;
      border-bottom: 1px solid var(--border-light);
    }
    .highlight-col {
      border-left: 3px solid var(--vivid-orange);
      background: #FFF9F5;
    }

    /* FAQ */
    .accordion-item {
      border-bottom: 1px solid var(--border-light);
    }
    .accordion-title {
      font-weight: 600;
      padding: 18px 0;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #F5F5F5;
      padding: 0 16px;
    }
    .accordion-content p {
      padding: 16px 0;
    }

    /* CTA横幅 */
    .cta-banner {
      background: linear-gradient(135deg, #1A3C34 0%, #0F2923 100%);
      border-radius: 28px;
      padding: 70px 40px;
      text-align: center;
      color: white;
    }

    /* 表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    input, textarea {
      background: #F5F5F5;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 14px;
      width: 100%;
      margin-bottom: 16px;
      transition: 0.2s;
    }
    input:focus, textarea:focus {
      border-color: var(--vivid-orange);
      outline: none;
    }

    footer {
      background: #0F2923;
      color: white;
      padding: 60px 0 30px;
    }

    @media (max-width: 1024px) {
      .hero-title { font-size: 40px; }
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .hamburger { display: block; }
      .hero-grid, .features-grid, .waterfall, .contact-grid {
        grid-template-columns: 1fr;
      }
      .waterfall-right { margin-top: 0; }
      .hero-visual { min-height: 260px; }
      .section-title { font-size: 26px; }
      section { padding: 60px 0; }
    }