/* roulang page: index */
:root {
      --primary: #E63946;
      --primary-hover: #C1121F;
      --secondary: #1D3557;
      --accent: #E9C46A;
      --light-bg: #F1FAEE;
      --gray-bg: #F8F9FA;
      --text-main: #1E1E1E;
      --text-secondary: #5A5A5A;
      --text-light: #CCCCCC;
      --border-light: #E0E0E0;
      --white: #FFFFFF;
      --dark-footer: #1E1E1E;
      --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
      --shadow-hover: 0 12px 32px rgba(0,0,0,0.1);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-search: 24px;
      --transition: 0.3s ease;
      --font-numbers: 'Inter', 'Roboto', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-body);
      color: var(--text-main);
      background: var(--white);
      line-height: 1.7;
      font-weight: 400;
      font-size: 1rem;
    }
    h1, h2, h3, h4 {
      font-family: var(--font-body);
      font-weight: 700;
    }
    .number-font {
      font-family: var(--font-numbers);
      font-weight: 700;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 导航 */
    .site-header {
      background: var(--white);
      height: 72px;
      display: flex;
      align-items: center;
      position: sticky;
      top: 0;
      z-index: 50;
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      transition: var(--transition);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      gap: 20px;
    }
    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .logo i {
      font-size: 1.8rem;
      color: var(--accent);
    }
    .search-box {
      flex: 1;
      max-width: 420px;
      position: relative;
    }
    .search-box input {
      width: 100%;
      background: #F5F6F8;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-search);
      padding: 12px 20px 12px 48px;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      color: var(--text-main);
    }
    .search-box input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(230,57,70,0.15);
      background: var(--white);
    }
    .search-box input::placeholder {
      color: #999;
    }
    .search-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--secondary);
      font-size: 1.1rem;
    }
    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-secondary);
      white-space: nowrap;
    }
    .nav-links a {
      color: var(--text-secondary);
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .mobile-toggle {
      display: none;
      font-size: 1.8rem;
      color: var(--secondary);
      cursor: pointer;
    }
    /* Hero */
    .hero {
      padding: 80px 0 100px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      background-blend-mode: overlay;
      background-color: rgba(29,53,87,0.88);
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(29,53,87,0.9) 0%, rgba(230,57,70,0.75) 100%);
    }
    .hero .container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .hero-left h1 {
      font-size: 3.5rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.2;
      color: white;
      margin-bottom: 20px;
    }
    .hero-sub {
      font-size: 1.25rem;
      color: rgba(255,255,255,0.9);
      margin-bottom: 32px;
      line-height: 1.6;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--primary);
      color: white;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      display: inline-block;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: scale(1.03);
      color: white;
    }
    .btn-outline {
      border: 2px solid var(--secondary);
      color: var(--secondary);
      background: transparent;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: var(--transition);
      background: white;
    }
    .btn-outline:hover {
      background: var(--secondary);
      color: white;
    }
    .hero-right {
      position: relative;
      display: flex;
      justify-content: center;
      align-items: center;
    }
    .score-cards {
      position: relative;
      width: 100%;
      max-width: 320px;
    }
    .score-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
      margin-bottom: -20px;
      position: relative;
      z-index: 2;
    }
    .score-card.top {
      z-index: 3;
      transform: rotate(-2deg);
      margin-bottom: 20px;
    }
    .score-card.bottom {
      z-index: 2;
      transform: rotate(1.5deg);
      opacity: 0.95;
    }
    .live-badge {
      background: var(--primary);
      color: white;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .match-teams {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--secondary);
    }
    .score-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary);
      font-family: var(--font-numbers);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); color: var(--primary-hover); }
      100% { transform: scale(1); }
    }
    .data-stream {
      font-size: 0.9rem;
      color: var(--text-secondary);
    }
    /* 通用板块 */
    .section {
      padding: 100px 0;
    }
    .section-title {
      font-size: 2.5rem;
      font-weight: 700;
      letter-spacing: -0.01em;
      margin-bottom: 16px;
    }
    .section-sub {
      color: var(--text-secondary);
      max-width: 700px;
      margin-bottom: 48px;
    }
    .alt-bg {
      background: var(--gray-bg);
    }
    /* 亮点网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--white);
      border-radius: var(--radius-card);
      padding: 32px 24px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      border-left: 4px solid var(--primary);
      display: flex;
      flex-direction: column;
    }
    .feature-card:nth-child(1) { min-height: 320px; }
    .feature-card:nth-child(2) { min-height: 360px; background: #F9FAFB; }
    .feature-card:nth-child(3) { min-height: 280px; }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      font-size: 2.2rem;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    /* 案例瀑布 */
    .cases-waterfall {
      column-count: 3;
      column-gap: 20px;
    }
    .case-card {
      break-inside: avoid;
      background: white;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      margin-bottom: 20px;
      transition: var(--transition);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img {
      transform: scale(1.05);
    }
    .case-info {
      padding: 20px;
    }
    .case-tag {
      background: var(--accent);
      color: #1E1E1E;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }
    /* 方案对比 */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
    }
    .plan-card {
      padding: 48px 32px;
      border-radius: 16px;
    }
    .plan-left {
      background: #F8F9FA;
    }
    .plan-right {
      background: white;
      border-left: 3px solid var(--accent);
      position: relative;
    }
    .plan-badge {
      position: absolute;
      top: 20px;
      right: 20px;
      background: var(--accent);
      color: #1E1E1E;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.8rem;
    }
    .plan-price {
      font-size: 2.8rem;
      font-weight: 800;
      font-family: var(--font-numbers);
      color: var(--secondary);
    }
    /* FAQ */
    .accordion-item {
      border-bottom: 1px solid #EEEEEE;
    }
    .accordion-question {
      font-size: 1.15rem;
      font-weight: 600;
      padding: 20px 0;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease-in-out;
      color: var(--text-secondary);
    }
    .accordion-answer.open {
      max-height: 200px;
      padding-bottom: 16px;
    }
    /* CTA */
    .cta-banner {
      background: var(--secondary);
      padding: 80px 0;
      text-align: center;
      color: white;
    }
    .cta-form {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-top: 24px;
      flex-wrap: wrap;
    }
    .cta-form input {
      padding: 14px 20px;
      border-radius: var(--radius-btn);
      border: none;
      width: 280px;
    }
    /* 页脚 */
    .footer {
      background: var(--dark-footer);
      color: var(--text-light);
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 30px;
    }
    .footer a:hover {
      color: var(--primary);
    }
    @media (max-width: 1024px) {
      .hero .container { grid-template-columns: 1fr; }
      .features-grid { grid-template-columns: repeat(2,1fr); }
      .cases-waterfall { column-count: 2; }
      .compare-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) {
      .nav-links { display: none; }
      .mobile-toggle { display: block; }
      .search-box { max-width: 100%; }
      .hero-left h1 { font-size: 2rem; }
      .features-grid { grid-template-columns: 1fr; }
      .cases-waterfall { column-count: 1; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .section-title { font-size: 1.75rem; }
    }