/* roulang page: index */
:root {
      --primary-deep-purple: #1A0A2E;
      --accent-neon-cyan: #00F0FF;
      --highlight-molten-orange: #FF6B35;
      --dark-card: #0D0D0D;
      --mid-border: #2A2A3A;
      --light-gray: #E0E0E0;
      --pure-white: #FFFFFF;
      --footer-bg: #050510;
      --card-hover-glow: rgba(0, 240, 255, 0.18);
      --btn-glow-orange: rgba(255, 107, 53, 0.6);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-pill: 24px;
      --font-heading: 'Orbitron', sans-serif;
      --font-body: 'Noto Sans SC', sans-serif;
      --font-mono: 'Share Tech Mono', monospace;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    html {
      scroll-behavior: smooth;
      background-color: var(--primary-deep-purple);
    }
    
    body {
      font-family: var(--font-body);
      background-color: var(--primary-deep-purple);
      color: var(--light-gray);
      line-height: 1.6;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
    }
    
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* 导航栏 - 搜索主导型 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(10, 5, 20, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.15);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    }
    
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 20px;
      max-width: 1200px;
      margin: 0 auto;
      flex-wrap: wrap;
    }
    
    .logo-area {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }
    
    .logo-text {
      font-family: var(--font-heading);
      font-size: 24px;
      font-weight: 700;
      background: linear-gradient(135deg, #00F0FF 0%, #3AF0FF 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: 2px;
      line-height: 1.2;
    }
    
    .logo-domain {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--highlight-molten-orange);
      letter-spacing: 0.5px;
    }
    
    .search-wrapper {
      flex: 1;
      max-width: 360px;
      margin: 0 24px;
      position: relative;
    }
    
    .search-input {
      width: 100%;
      background: var(--dark-card);
      border: 1px solid var(--mid-border);
      border-radius: var(--radius-pill);
      padding: 12px 20px 12px 48px;
      font-family: var(--font-body);
      font-size: 15px;
      color: var(--pure-white);
      outline: none;
      transition: all 0.3s ease;
      background-color: rgba(13, 13, 13, 0.9);
    }
    
    .search-input::placeholder {
      color: #7A7A8A;
      font-weight: 300;
      font-size: 14px;
    }
    
    .search-input:focus {
      border-color: var(--highlight-molten-orange);
      box-shadow: 0 0 15px rgba(255, 107, 53, 0.4);
    }
    
    .search-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--accent-neon-cyan);
      font-size: 16px;
    }
    
    .nav-links {
      display: flex;
      gap: 24px;
      align-items: center;
    }
    
    .nav-links a {
      font-family: var(--font-body);
      font-size: 14px;
      font-weight: 400;
      color: var(--light-gray);
      text-decoration: none;
      transition: color 0.2s;
      position: relative;
      padding: 4px 0;
    }
    
    .nav-links a:hover {
      color: var(--accent-neon-cyan);
    }
    
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--highlight-molten-orange);
      transition: width 0.3s;
    }
    
    .nav-links a:hover::after {
      width: 100%;
    }
    
    /* 汉堡菜单 (纯CSS) */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    
    .menu-toggle span {
      display: block;
      width: 25px;
      height: 2px;
      background: var(--accent-neon-cyan);
      margin: 5px 0;
      transition: 0.3s;
    }
    
    #menu-checkbox {
      display: none;
    }
    
    /* 板块通用 */
    section {
      padding: 100px 0;
      position: relative;
    }
    
    .section-title {
      font-family: var(--font-heading);
      font-size: 40px;
      font-weight: 700;
      color: var(--accent-neon-cyan);
      text-align: center;
      margin-bottom: 16px;
      letter-spacing: 1px;
    }
    
    .section-sub {
      text-align: center;
      color: var(--light-gray);
      max-width: 700px;
      margin: 0 auto 60px;
      font-size: 18px;
    }
    
    /* 按钮 */
    .btn {
      display: inline-block;
      font-family: var(--font-body);
      font-weight: 700;
      border-radius: var(--radius-btn);
      text-decoration: none;
      transition: all 0.2s ease;
      cursor: pointer;
      letter-spacing: 0.5px;
    }
    
    .btn-primary {
      background: var(--highlight-molten-orange);
      color: var(--pure-white);
      padding: 14px 32px;
      border: none;
      box-shadow: 0 0 18px rgba(255, 107, 53, 0.45);
    }
    
    .btn-primary:hover {
      background: #FF8050;
      box-shadow: 0 0 24px var(--btn-glow-orange);
      transform: scale(1.03);
    }
    
    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--accent-neon-cyan);
      color: var(--accent-neon-cyan);
      padding: 14px 32px;
    }
    
    .btn-secondary:hover {
      background: rgba(0, 240, 255, 0.1);
      transform: scale(1.03);
    }
    
    .btn-large {
      padding: 18px 48px;
      font-size: 18px;
    }
    
    /* Hero */
    #hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      background: radial-gradient(circle at 30% 40%, #2D1B4E 0%, #1A0A2E 80%);
      position: relative;
      overflow: hidden;
    }
    
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    
    .hero-left h1 {
      font-family: var(--font-heading);
      font-size: 56px;
      font-weight: 700;
      background: linear-gradient(to right, #00F0FF, #FF6B35);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      text-shadow: 0 0 25px rgba(0,240,255,0.5);
      line-height: 1.2;
      margin-bottom: 24px;
    }
    
    .hero-sub {
      font-size: 18px;
      color: var(--light-gray);
      margin-bottom: 36px;
      line-height: 1.6;
    }
    
    .cta-group {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    
    .hero-right {
      display: flex;
      justify-content: center;
      align-items: center;
    }
    
    .energy-ring {
      width: 340px;
      height: 340px;
      border: 2px dashed var(--accent-neon-cyan);
      border-radius: 50%;
      position: relative;
      animation: spin 20s linear infinite;
      opacity: 0.7;
      background: rgba(0,240,255,0.03);
    }
    
    @keyframes spin {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }
    
    .scroll-hint {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      color: var(--accent-neon-cyan);
      font-size: 28px;
      animation: bounce 2s infinite;
    }
    
    @keyframes bounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(10px); }
    }
    
    /* 运势卡片 */
    .fortune-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    
    .fortune-card {
      background: var(--dark-card);
      border: 1px solid var(--mid-border);
      border-radius: var(--radius-card);
      padding: 32px;
      text-align: center;
      transition: all 0.3s ease;
      box-shadow: 0 4px 24px rgba(0,240,255,0.08);
    }
    
    .fortune-card:hover {
      border-color: var(--accent-neon-cyan);
      transform: translateY(-4px);
      box-shadow: 0 8px 30px var(--card-hover-glow);
    }
    
    .icon-placeholder {
      font-size: 48px;
      color: var(--accent-neon-cyan);
      margin-bottom: 20px;
    }
    
    .progress-ring {
      width: 70px;
      height: 70px;
      border-radius: 50%;
      background: conic-gradient(var(--accent-neon-cyan) 0% 78%, #2A2A3A 78% 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 16px auto;
      font-family: var(--font-mono);
      color: var(--accent-neon-cyan);
      font-size: 20px;
    }
    
    /* 功能行 */
    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      margin-bottom: 80px;
    }
    
    .feature-img {
      background: #1E1E2E;
      height: 320px;
      border-radius: var(--radius-card);
      border: 1px solid var(--mid-border);
      box-shadow: 0 0 20px rgba(0,240,255,0.15);
      background-image: url('/assets/images/coverpic/cover-1.webp');
      background-size: cover;
      background-position: center;
    }
    
    .tech-tags {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 20px;
    }
    
    .tag {
      background: var(--dark-card);
      border: 1px solid var(--accent-neon-cyan);
      color: var(--accent-neon-cyan);
      padding: 4px 14px;
      border-radius: 20px;
      font-size: 12px;
    }
    
    /* 场景卡片 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    
    .scenario-card {
      background: var(--dark-card);
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--mid-border);
      transition: 0.3s;
    }
    
    .scenario-card:hover {
      border-color: var(--highlight-molten-orange);
    }
    
    .scenario-img {
      height: 180px;
      background-size: cover;
      background-position: center;
    }
    
    /* 横向滚动战绩 */
    .testimonials-scroll {
      display: flex;
      gap: 24px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 20px;
    }
    
    .testimonial-card {
      min-width: 300px;
      background: #1E1E2E;
      border-radius: var(--radius-card);
      padding: 24px;
      scroll-snap-align: start;
    }
    
    /* FAQ */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    
    details {
      background: var(--dark-card);
      border-left: 3px solid var(--accent-neon-cyan);
      border-radius: 8px;
      padding: 16px;
    }
    
    summary {
      color: var(--accent-neon-cyan);
      font-weight: 700;
      cursor: pointer;
    }
    
    /* CTA */
    .cta-section {
      background: linear-gradient(180deg, #1A0A2E 0%, #050510 100%);
      text-align: center;
    }
    
    /* 页脚 */
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      padding: 60px 0 40px;
    }
    
    .social-icons i {
      font-size: 22px;
      margin-right: 16px;
      color: var(--accent-neon-cyan);
      border: 1px solid var(--accent-neon-cyan);
      border-radius: 50%;
      padding: 10px;
      transition: 0.3s;
    }
    
    .social-icons i:hover {
      background: var(--highlight-molten-orange);
      border-color: var(--highlight-molten-orange);
    }
    
    @media (max-width: 768px) {
      .header-inner {
        flex-direction: column;
        align-items: stretch;
      }
      .search-wrapper {
        margin: 12px 0;
        max-width: 100%;
      }
      .nav-links {
        display: none;
      }
      .menu-toggle {
        display: block;
        position: absolute;
        right: 20px;
        top: 18px;
      }
      #menu-checkbox:checked ~ .nav-links {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 20px 0;
      }
      .hero-grid, .feature-row, .fortune-grid, .scenario-grid, .faq-grid {
        grid-template-columns: 1fr;
      }
      h1 { font-size: 36px !important; }
      .section-title { font-size: 28px; }
    }