/* roulang page: index */
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --bg-deep: #0A1A1A;
      --bg-card: rgba(10, 26, 26, 0.75);
      --rose-gold: #C8A951;
      --neon-purple: #B14EFF;
      --neon-purple-deep: #8A2BE2;
      --text-light: #FFFFFF;
      --text-body: #B0C4C4;
      --border-subtle: rgba(200, 169, 81, 0.2);
      --border-hover: rgba(177, 78, 255, 0.7);
      --radius-lg: 24px;
      --radius-pill: 50px;
      --shadow-glow: 0 0 20px rgba(177, 78, 255, 0.4);
      --transition: all 0.3s ease;
      --font-heading: 'Orbitron', 'Noto Sans SC', sans-serif;
      --font-body: 'Noto Sans SC', sans-serif;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--bg-deep);
      color: var(--text-body);
      line-height: 1.6;
      overflow-x: hidden;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 2rem;
    }
    h1, h2, h3, .data-number {
      font-family: var(--font-heading);
      font-weight: 700;
    }
    h1 {
      font-size: 3.5rem;
      letter-spacing: -0.5px;
      color: var(--rose-gold);
      line-height: 1.2;
    }
    h2 {
      font-size: 2.5rem;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 1rem;
    }
    .section-title {
      position: relative;
      display: inline-block;
      margin-bottom: 2.5rem;
    }
    .section-title::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 60%;
      height: 3px;
      background: linear-gradient(90deg, var(--neon-purple), transparent);
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      display: block;
    }
    button, .btn {
      cursor: pointer;
      font-family: var(--font-body);
      border: none;
      background: none;
      transition: var(--transition);
    }
    /* 导航杂志频道风格 */
    .header {
      background: rgba(10, 26, 26, 0.98);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid var(--border-subtle);
    }
    .brand-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1rem 0;
      flex-wrap: wrap;
    }
    .logo {
      font-family: var(--font-heading);
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--rose-gold);
      letter-spacing: 2px;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .logo span {
      font-family: var(--font-body);
      font-weight: 400;
      font-size: 1rem;
      color: var(--text-body);
      letter-spacing: 0.5px;
    }
    .cta-header-btn {
      background: linear-gradient(135deg, var(--neon-purple), var(--neon-purple-deep));
      color: white;
      padding: 0.6rem 2rem;
      border-radius: var(--radius-pill);
      font-weight: 600;
      font-size: 0.9rem;
      letter-spacing: 0.5px;
      box-shadow: 0 4px 12px rgba(177, 78, 255, 0.4);
    }
    .cta-header-btn:hover {
      filter: brightness(1.2);
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow);
    }
    .channel-row {
      display: flex;
      gap: 2rem;
      padding: 0.8rem 0;
      overflow-x: auto;
      white-space: nowrap;
      scrollbar-width: thin;
      scrollbar-color: var(--neon-purple) transparent;
    }
    .channel-row a {
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding-bottom: 6px;
      transition: color 0.2s;
      font-size: 0.95rem;
    }
    .channel-row a:hover,
    .channel-row a.active {
      color: var(--neon-purple);
    }
    .channel-row a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--neon-purple);
      transition: width 0.3s;
    }
    .channel-row a:hover::after,
    .channel-row a.active::after {
      width: 100%;
    }
    .menu-toggle {
      display: none;
      font-size: 1.8rem;
      color: var(--rose-gold);
    }
    /* Hero */
    .hero {
      position: relative;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 85vh;
      display: flex;
      align-items: center;
      color: white;
      isolation: isolate;
    }
    .hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(10,26,26,0.85) 0%, rgba(10,26,26,0.4) 70%);
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 3rem;
      width: 100%;
    }
    .hero-text {
      flex: 1 1 500px;
    }
    .hero-text h1 {
      margin-bottom: 1.5rem;
    }
    .hero-sub {
      font-size: 1.3rem;
      color: var(--text-body);
      margin-bottom: 2rem;
    }
    .hero-badges {
      display: flex;
      gap: 2rem;
      flex-wrap: wrap;
      margin-top: 3rem;
    }
    .badge-item {
      background: rgba(10, 26, 26, 0.8);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-subtle);
      border-radius: 40px;
      padding: 0.8rem 1.8rem;
      display: flex;
      align-items: center;
      gap: 0.8rem;
    }
    .badge-number {
      font-family: var(--font-heading);
      font-size: 2rem;
      color: var(--neon-purple);
      font-weight: 700;
    }
    .badge-label {
      color: var(--rose-gold);
      font-size: 0.9rem;
    }
    /* 核心价值卡片 错落布局 */
    .values-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      margin-top: 3rem;
    }
    .value-card {
      background: var(--bg-card);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 2.5rem 1.8rem;
      transition: var(--transition);
      position: relative;
    }
    .value-card:nth-child(2) {
      margin-top: -2rem;
    }
    .value-card:nth-child(4) {
      margin-top: -1rem;
    }
    .value-card:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-glow);
      transform: translateY(-8px);
    }
    .value-icon {
      font-size: 2.5rem;
      color: var(--neon-purple);
      margin-bottom: 1.5rem;
    }
    .value-card h3 {
      color: var(--text-light);
      font-size: 1.5rem;
      margin-bottom: 1rem;
    }
    /* 功能分组 左侧文字右侧卡片 */
    .feature-row {
      display: flex;
      gap: 3rem;
      align-items: center;
      margin-bottom: 4rem;
      flex-wrap: wrap;
    }
    .feature-text {
      flex: 1 1 350px;
    }
    .feature-visual {
      flex: 1 1 400px;
      background: var(--bg-card);
      backdrop-filter: blur(10px);
      border-radius: var(--radius-lg);
      padding: 2rem;
      border-left: 4px solid var(--neon-purple);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .feature-visual img {
      border-radius: 16px;
      width: 100%;
      height: auto;
    }
    /* 场景区 */
    .scenario-bg {
      background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      position: relative;
      padding: 5rem 0;
      isolation: isolate;
    }
    .scenario-bg::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(10, 26, 26, 0.9);
      z-index: 0;
    }
    .scenario-grid {
      position: relative;
      z-index: 2;
      display: flex;
      gap: 2rem;
      flex-wrap: wrap;
    }
    .scenario-card {
      flex: 1 1 250px;
      background: rgba(0,0,0,0.5);
      backdrop-filter: blur(8px);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-subtle);
    }
    .scenario-card img {
      height: 200px;
      object-fit: cover;
    }
    .scenario-caption {
      padding: 1.5rem;
      color: var(--rose-gold);
      font-weight: 600;
    }
    /* 数据徽章区 */
    .stats-grid {
      display: flex;
      gap: 2rem;
      justify-content: center;
      flex-wrap: wrap;
      margin: 3rem 0;
    }
    .stat-capsule {
      background: rgba(10, 26, 26, 0.8);
      border: 1px solid var(--border-subtle);
      border-radius: 60px;
      padding: 1.5rem 2.5rem;
      text-align: center;
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--neon-purple);
    }
    .stat-desc {
      color: var(--rose-gold);
    }
    /* FAQ */
    .faq-grid {
      display: flex;
      gap: 2rem;
      flex-wrap: wrap;
    }
    .faq-categories {
      flex: 1 1 200px;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
    }
    .faq-cat {
      padding: 0.7rem 1.2rem;
      border-radius: 30px;
      background: transparent;
      border: 1px solid var(--border-subtle);
      color: var(--text-body);
      cursor: pointer;
    }
    .faq-cat.active {
      background: var(--neon-purple);
      color: white;
      border-color: var(--neon-purple);
    }
    .faq-list {
      flex: 3 1 600px;
    }
    details {
      background: var(--bg-card);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-subtle);
      border-radius: 16px;
      padding: 1.2rem;
      margin-bottom: 1rem;
      transition: var(--transition);
    }
    details[open] {
      border-color: var(--neon-purple);
    }
    summary {
      font-weight: 600;
      color: var(--text-light);
      list-style: none;
      display: flex;
      align-items: center;
      gap: 0.8rem;
      cursor: pointer;
    }
    summary::before {
      content: "//";
      color: var(--rose-gold);
      font-weight: bold;
    }
    details[open] summary::before {
      color: var(--neon-purple);
    }
    .faq-answer {
      margin-top: 1rem;
      color: var(--text-body);
    }
    /* CTA */
    .cta-full {
      background: radial-gradient(circle at 30% 30%, #1a0f2e, #0A1A1A);
      padding: 5rem 0;
      text-align: center;
      border-top: 2px solid var(--neon-purple);
    }
    .cta-full h2 {
      color: var(--rose-gold);
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--neon-purple), var(--neon-purple-deep));
      padding: 1rem 3rem;
      border-radius: var(--radius-pill);
      color: white;
      font-weight: 700;
      font-size: 1.2rem;
      display: inline-block;
      margin-top: 2rem;
    }
    .btn-primary:hover {
      filter: brightness(1.2);
      box-shadow: var(--shadow-glow);
    }
    .footer {
      background: #050e0e;
      padding: 3rem 0;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--border-subtle);
    }
    .footer-left p {
      color: var(--rose-gold);
      font-weight: 500;
    }
    .footer-nav a {
      margin: 0 1rem;
      color: var(--text-body);
    }
    .footer-nav a:hover {
      color: var(--neon-purple);
    }
    .social i {
      font-size: 1.5rem;
      margin-left: 1.5rem;
      color: var(--text-body);
      transition: var(--transition);
    }
    .social i:hover {
      color: var(--neon-purple);
    }
    @media (max-width: 1024px) {
      h1 { font-size: 2.8rem; }
      .values-grid { grid-template-columns: repeat(2,1fr); }
      .value-card:nth-child(2), .value-card:nth-child(4) { margin-top: 0; }
    }
    @media (max-width: 768px) {
      .channel-row { display: none; flex-direction: column; background: #0A1A1A; position: absolute; top: 70px; left: 0; width: 100%; padding: 1rem; }
      .channel-row.open { display: flex; }
      .menu-toggle { display: block; }
      h1 { font-size: 2.2rem; }
      .hero { min-height: 70vh; }
      .values-grid { grid-template-columns: 1fr; }
      .feature-row { flex-direction: column; }
      .footer { flex-direction: column; text-align: center; gap: 1.5rem; }
    }