/* roulang page: index */
:root {
      --primary-deep: #1A0A2E;
      --accent-gold: #D4AF37;
      --bg-warm: #F5F0EB;
      --text-soft: #2E2A25;
      --white: #FFFFFF;
      --gray-light: #FAF8F6;
      --gold-bright: #E5C85C;
      --shadow-sm: 0 4px 20px rgba(26,10,46,0.08);
      --shadow-md: 0 8px 30px rgba(26,10,46,0.15);
      --radius-card: 16px;
      --radius-btn: 30px;
      --font-serif: 'Noto Serif SC', serif;
      --font-sans: 'Noto Sans SC', sans-serif;
      --font-mono: 'DM Mono', monospace;
      --transition: 0.3s ease;
      --section-gap: 80px;
    }
    
    * {
      box-sizing: border-box;
    }
    
    body {
      font-family: var(--font-sans);
      color: var(--text-soft);
      background-color: var(--bg-warm);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    
    h1, h2, h3 {
      font-family: var(--font-serif);
      font-weight: 600;
      margin-top: 0;
    }
    
    h2 {
      font-size: 2.2rem;
      margin-bottom: 1.5rem;
      position: relative;
      display: inline-block;
    }
    
    h2:after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 50%;
      height: 3px;
      background: var(--accent-gold);
      border-radius: 2px;
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    
    /* 导航杂志频道式 */
    .main-header {
      background: var(--white);
      box-shadow: 0 2px 12px rgba(0,0,0,0.03);
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(6px);
      background: rgba(255,255,255,0.92);
    }
    
    .brand-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0.8rem 0;
      border-bottom: 1px solid rgba(0,0,0,0.04);
    }
    
    .logo {
      font-family: var(--font-serif);
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--primary-deep);
      display: flex;
      align-items: center;
      gap: 0.3rem;
      text-decoration: none;
    }
    
    .logo i {
      color: var(--accent-gold);
      font-size: 2rem;
    }
    
    .header-cta {
      background: var(--accent-gold);
      color: var(--primary-deep);
      padding: 0.6rem 1.8rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      white-space: nowrap;
    }
    
    .header-cta:hover {
      background: var(--gold-bright);
      color: var(--primary-deep);
    }
    
    .channel-row {
      display: flex;
      gap: 2rem;
      padding: 0.7rem 0;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    
    .channel-row::-webkit-scrollbar {
      display: none;
    }
    
    .channel-row a {
      text-decoration: none;
      color: var(--text-soft);
      font-weight: 500;
      font-size: 0.95rem;
      padding-bottom: 4px;
      border-bottom: 2px solid transparent;
      transition: var(--transition);
    }
    
    .channel-row a:hover,
    .channel-row a.active {
      color: var(--accent-gold);
      border-bottom-color: var(--accent-gold);
    }
    
    .hamburger {
      display: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: var(--primary-deep);
    }
    
    /* Hero 星空背景 */
    .hero {
      background: linear-gradient(135deg, #1A0A2E 0%, #3B1F5E 50%, #6B3FA0 100%);
      position: relative;
      overflow: hidden;
      padding: 4rem 0;
      color: white;
    }
    
    .stars-texture {
      position: absolute;
      top:0; left:0; width:100%; height:100%;
      background: radial-gradient(2px 2px at 20% 30%, rgba(255,255,240,0.9), rgba(0,0,0,0)),
                  radial-gradient(2px 2px at 40% 70%, rgba(255,255,200,0.8), rgba(0,0,0,0)),
                  radial-gradient(1px 1px at 70% 20%, rgba(212,175,55,0.7), rgba(0,0,0,0)),
                  radial-gradient(1px 1px at 90% 60%, rgba(255,255,255,0.6), rgba(0,0,0,0));
      background-size: 200px 200px;
      pointer-events: none;
    }
    
    .hero-content {
      position: relative;
      z-index: 2;
      display: flex;
      align-items: center;
      gap: 3rem;
      flex-wrap: wrap;
    }
    
    .hero-text {
      flex: 1 1 400px;
    }
    
    .hero h1 {
      font-size: 3.5rem;
      font-weight: 700;
      color: white;
      line-height: 1.3;
      margin-bottom: 1.5rem;
      text-shadow: 0 4px 12px rgba(0,0,0,0.3);
    }
    
    .hero .subtitle {
      font-size: 1.2rem;
      color: rgba(255,255,240,0.9);
      margin-bottom: 2rem;
      max-width: 500px;
    }
    
    .hero-buttons {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    
    .btn-primary {
      background: var(--accent-gold);
      color: var(--primary-deep);
      padding: 0.9rem 2.5rem;
      border-radius: var(--radius-btn);
      font-weight: 700;
      text-decoration: none;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    
    .btn-primary:hover {
      background: var(--gold-bright);
    }
    
    .btn-ghost {
      background: transparent;
      border: 1.5px solid var(--accent-gold);
      color: var(--accent-gold);
      padding: 0.9rem 2.5rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
    }
    
    .btn-ghost:hover {
      background: rgba(212,175,55,0.1);
    }
    
    .hero-image {
      flex: 1 1 300px;
      text-align: center;
    }
    
    .hero-image img {
      max-width: 100%;
      height: auto;
      border-radius: 24px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    
    /* 数据看板 */
    .data-board {
      background: var(--gray-light);
      border-radius: var(--radius-card);
      padding: 2.5rem 2rem;
      margin: -3rem auto 4rem;
      position: relative;
      z-index: 5;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-around;
      gap: 2rem;
    }
    
    .stat-item {
      text-align: center;
      flex: 1 1 150px;
    }
    
    .stat-number {
      font-family: var(--font-mono);
      font-size: 2.8rem;
      font-weight: 500;
      color: var(--primary-deep);
      position: relative;
      display: inline-block;
    }
    
    .badge {
      background: var(--accent-gold);
      color: var(--primary-deep);
      font-size: 0.7rem;
      font-weight: 700;
      padding: 0.15rem 0.5rem;
      border-radius: 20px;
      position: absolute;
      top: -8px;
      right: -25px;
      white-space: nowrap;
    }
    
    /* 服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      margin: 3rem 0;
    }
    
    .service-card {
      background: var(--white);
      border-radius: var(--radius-card);
      padding: 2rem 1.8rem;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    
    .service-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    
    .service-icon {
      font-size: 2.4rem;
      color: var(--accent-gold);
      margin-bottom: 1.2rem;
    }
    
    .service-card h3 {
      font-size: 1.5rem;
      margin-bottom: 0.8rem;
    }
    
    .service-card p {
      color: #555;
      flex: 1;
    }
    
    .card-link {
      color: var(--accent-gold);
      font-weight: 600;
      text-decoration: none;
      margin-top: 1rem;
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      transition: var(--transition);
    }
    
    .card-link i {
      transition: var(--transition);
    }
    
    .card-link:hover i {
      transform: translateX(5px);
    }
    
    /* 结果对比 */
    .comparison {
      display: flex;
      gap: 2rem;
      align-items: center;
      flex-wrap: wrap;
    }
    
    .compare-card {
      flex: 1 1 280px;
      background: var(--white);
      border-radius: var(--radius-card);
      padding: 2rem;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    
    .compare-card.ours {
      border: 2px solid var(--accent-gold);
      background: #FFFDF7;
    }
    
    .vs-badge {
      background: var(--primary-deep);
      color: var(--accent-gold);
      font-weight: 700;
      border-radius: 50%;
      width: 60px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      box-shadow: var(--shadow-md);
    }
    
    /* FAQ */
    .accordion-title {
      font-weight: 600;
      border-radius: 12px;
      background: var(--white);
      border: 1px solid #eee;
      padding: 1rem 1.5rem;
      margin-bottom: 0.5rem;
      transition: var(--transition);
    }
    
    .accordion-title:hover {
      background: #fafafa;
    }
    
    .accordion-title::before {
      content: "●";
      color: var(--accent-gold);
      margin-right: 10px;
      font-size: 1.2rem;
    }
    
    .is-active .accordion-title::before {
      content: "★";
    }
    
    /* 表单 */
    .cta-section {
      background: linear-gradient(135deg, #1A0A2E 0%, #3B1F5E 100%);
      border-radius: 32px;
      padding: 3rem;
      color: white;
      margin: 4rem 0;
    }
    
    .form-input {
      border-radius: 24px;
      border: none;
      padding: 0.9rem 1.5rem;
      margin-bottom: 1rem;
    }
    
    .trust-badges i {
      color: var(--accent-gold);
      margin-right: 8px;
    }
    
    /* 页脚 */
    .footer {
      background: var(--primary-deep);
      color: #ccc;
      padding: 3rem 0 1.5rem;
    }
    
    @media (max-width: 1024px) {
      .services-grid { grid-template-columns: repeat(2, 1fr); }
    }
    
    @media (max-width: 768px) {
      .channel-row { display: none; }
      .hamburger { display: block; }
      .services-grid { grid-template-columns: 1fr; }
      .hero h1 { font-size: 2.5rem; }
    }