/* roulang page: index */
:root {
      --primary-dark: #1A1A1A;
      --primary-red: #C8102E;
      --deep-red-bg: #2D1215;
      --accent-gold: #D4AF37;
      --accent-gold-light: #E8C547;
      --bg-warm: #F5F0EB;
      --bg-card: #FAFAFA;
      --bg-light-gray: #EEEAE5;
      --text-dark: #2D2D2D;
      --text-white: #FFFFFF;
      --text-muted: rgba(255,255,255,0.7);
      --border-light: rgba(0,0,0,0.04);
      --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-hover: 0 16px 36px rgba(0,0,0,0.12);
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-btn: 12px;
      --font-title: 'PingFang SC Bold', 'Microsoft YaHei Bold', 'Helvetica Neue', sans-serif;
      --font-body: 'PingFang SC Regular', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      --font-number: 'SF Mono', 'Menlo', 'Consolas', 'PingFang SC', monospace;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--bg-warm);
      color: var(--text-dark);
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    button, .btn {
      cursor: pointer;
      font-family: var(--font-body);
      transition: all 0.25s ease;
      display: inline-block;
      border: none;
      outline: none;
    }
    /* 导航栏 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      transition: background 0.3s ease, box-shadow 0.3s;
    }
    .header.scrolled {
      background: rgba(255,255,255,0.98);
      box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    }
    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: var(--font-title);
      font-size: 24px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: 1px;
    }
    .logo i {
      font-size: 32px;
      color: var(--primary-red);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }
    .nav-menu a {
      font-weight: 600;
      color: var(--text-dark);
      font-size: 16px;
      position: relative;
      padding: 6px 0;
      transition: color 0.2s;
    }
    .nav-menu a:hover {
      color: var(--primary-red);
    }
    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent-gold);
      transition: width 0.2s ease;
    }
    .nav-menu a:hover::after {
      width: 100%;
    }
    .btn-primary {
      background: var(--accent-gold);
      color: var(--primary-dark);
      font-weight: 700;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      letter-spacing: 0.5px;
      box-shadow: 0 4px 12px rgba(212,175,55,0.3);
    }
    .btn-primary:hover {
      background: var(--accent-gold-light);
      transform: scale(1.03);
      box-shadow: 0 8px 22px rgba(212,175,55,0.5);
    }
    .btn-outline-light {
      background: transparent;
      border: 2px solid var(--text-white);
      color: var(--text-white);
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-btn);
    }
    .btn-outline-light:hover {
      background: var(--text-white);
      color: var(--primary-dark);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: none;
      border: none;
      padding: 8px;
    }
    .hamburger span {
      width: 28px;
      height: 3px;
      background: var(--primary-dark);
      border-radius: 4px;
      transition: 0.3s;
    }
    @media (max-width: 767px) {
      .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: #FFFFFF;
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        box-shadow: -8px 0 28px rgba(0,0,0,0.1);
        transition: right 0.35s ease;
        padding: 48px;
        list-style: none;
      }
      .nav-menu.active {
        right: 0;
      }
      .hamburger {
        display: flex;
        z-index: 1001;
      }
      .nav-cta-desktop {
        display: none;
      }
    }
    /* Hero */
    .hero {
      padding: 160px 0 100px;
      background: linear-gradient(135deg, #1A1A1A 0%, #2D1215 100%);
      position: relative;
      overflow: hidden;
      color: white;
    }
    .hero::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.28;
      mix-blend-mode: overlay;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
    }
    .hero h1 {
      font-family: var(--font-title);
      font-size: clamp(42px, 6vw, 56px);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
      color: white;
    }
    .hero-sub {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 32px;
    }
    .badge-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }
    .badge {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(8px);
      border-radius: 40px;
      padding: 10px 24px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: white;
      border: 1px solid rgba(255,255,255,0.15);
    }
    .badge-num {
      font-family: var(--font-number);
      font-weight: 700;
      font-size: 24px;
      color: var(--accent-gold);
      text-shadow: 0 0 12px rgba(212,175,55,0.6);
    }
    /* 数据看板 */
    .section {
      padding: 80px 0;
    }
    .section-title {
      font-family: var(--font-title);
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .gold-underline {
      width: 60px;
      height: 4px;
      background: var(--accent-gold);
      border-radius: 4px;
    }
    .dashboard-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 32px;
    }
    .data-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-light);
      transition: all 0.3s ease;
    }
    .data-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-gold);
    }
    .match-icon {
      font-size: 28px;
      margin-bottom: 12px;
    }
    .live-score {
      font-family: var(--font-number);
      font-size: 36px;
      font-weight: 700;
      color: var(--accent-gold);
    }
    .status {
      display: inline-block;
      background: #2D2D2D;
      color: white;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
    }
    /* 服务矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 32px;
    }
    .service-card {
      background: white;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: 0.3s;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .service-img {
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    .service-text {
      padding: 24px;
    }
    .service-text h3 {
      font-family: var(--font-title);
      font-size: 20px;
      margin-bottom: 8px;
    }
    /* 对比表 */
    .compare-wrapper {
      display: flex;
      gap: 24px;
      margin-top: 32px;
    }
    .compare-col {
      flex: 1;
      background: white;
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .compare-col.milan {
      background: var(--primary-red);
      color: white;
    }
    .compare-col.other {
      background: #EEEAE5;
    }
    .compare-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin: 16px 0;
    }
    /* 步骤 */
    .steps {
      display: flex;
      justify-content: space-between;
      margin-top: 40px;
    }
    .step {
      text-align: center;
      flex: 1;
    }
    .step-circle {
      width: 64px;
      height: 64px;
      background: var(--accent-gold);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 24px;
      margin: 0 auto 16px;
      color: #1A1A1A;
    }
    /* FAQ */
    .faq-item {
      background: white;
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      padding: 20px 24px;
      cursor: pointer;
      border-left: 4px solid var(--accent-gold);
      transition: 0.2s;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: #4a4a4a;
      margin-top: 8px;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
    }
    /* CTA band */
    .cta-band {
      background: linear-gradient(135deg, #1A1A1A, #2D1215);
      padding: 80px 0;
      text-align: center;
      color: white;
    }
    .footer {
      background: #1A1A1A;
      color: #CCC;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
    }
    @media (max-width: 1023px) {
      .dashboard-grid { grid-template-columns: repeat(2,1fr); }
      .service-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 767px) {
      .dashboard-grid { grid-template-columns: 1fr; }
      .service-grid { grid-template-columns: 1fr; }
      .compare-wrapper { flex-direction: column; }
      .steps { flex-direction: column; gap: 32px; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero { padding: 140px 0 80px; }
    }