/* roulang page: index */
:root {
      --xg-primary: #ff2c55;
      --xg-primary-dark: #d91c42;
      --xg-accent: #ff6b35;
      --xg-dark: #0f1117;
      --xg-dark-surface: #181a24;
      --xg-dark-card: #202433;
      --xg-dark-border: #2c3247;
      --xg-text-main: #f5f6fa;
      --xg-text-muted: #9aa1b5;
      --xg-code-bg: #12141c;
      --xg-code-text: #50fa7b;
      --xg-radius: 10px;
      --xg-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
      --xg-transition: all 0.28s ease;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      background-color: var(--xg-dark);
      color: var(--xg-text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
    }

    a { color: var(--xg-primary); text-decoration: none; transition: var(--xg-transition); }
    a:hover, a:focus { color: var(--xg-accent); }
    img { max-width: 100%; height: auto; display: block; }

    /* 全局布局与间距 */
    .xg-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
    .xg-section { padding: 90px 0; border-bottom: 1px solid var(--xg-dark-border); position: relative; }
    .xg-section-alt { background-color: var(--xg-dark-surface); }
    .xg-section-header { text-align: center; margin-bottom: 50px; }
    .xg-section-title { font-size: 2.2rem; font-weight: 700; color: #ffffff; letter-spacing: -0.5px; margin-bottom: 14px; }
    .xg-section-desc { font-size: 1.05rem; color: var(--xg-text-muted); max-width: 720px; margin: 0 auto; line-height: 1.7; }
    
    /* 徽章与按钮 */
    .xg-badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--xg-primary);
      background: rgba(255, 44, 85, 0.12);
      border: 1px solid rgba(255, 44, 85, 0.35);
      border-radius: 20px;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .xg-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 6px;
      cursor: pointer;
      transition: var(--xg-transition);
      border: none;
      box-shadow: 0 4px 14px rgba(255, 44, 85, 0.3);
    }
    .xg-btn-primary { background: linear-gradient(135deg, var(--xg-primary) 0%, var(--xg-accent) 100%); color: #ffffff; }
    .xg-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(255, 44, 85, 0.45); color: #fff; }
    .xg-btn-secondary { background: var(--xg-dark-card); color: var(--xg-text-main); border: 1px solid var(--xg-dark-border); }
    .xg-btn-secondary:hover { background: var(--xg-dark-border); color: #fff; transform: translateY(-2px); }

    /* 顶部导航 */
    .xg-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 17, 23, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--xg-dark-border);
      height: 70px;
      display: flex;
      align-items: center;
    }
    .xg-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .xg-logo {
      font-size: 1.45rem;
      font-weight: 800;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .xg-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--xg-primary), var(--xg-accent));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: bold;
      font-size: 1.1rem;
    }
    .xg-nav-links { display: flex; align-items: center; gap: 24px; list-style: none; margin: 0; }
    .xg-nav-link { color: var(--xg-text-muted); font-size: 0.95rem; font-weight: 500; }
    .xg-nav-link:hover, .xg-nav-link.active { color: #ffffff; }

    /* 1. Hero 开发者/能力首屏 (硬性蓝图：API/开发者，代码示意块 + 控制台 CTA) */
    .xg-hero-section {
      background: linear-gradient(180deg, rgba(24, 26, 36, 0.85) 0%, rgba(15, 17, 23, 1) 100%), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      padding: 100px 0 110px;
      position: relative;
    }
    .xg-hero-content { display: flex; align-items: center; gap: 40px; flex-wrap: wrap; }
    .xg-hero-text { flex: 1 1 540px; }
    .xg-hero-code { flex: 1 1 480px; }
    .xg-hero-title { font-size: 2.75rem; font-weight: 800; line-height: 1.25; margin-bottom: 20px; color: #ffffff; }
    .xg-hero-title span { background: linear-gradient(135deg, #ff4d6d, #ff8c42); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .xg-hero-desc { font-size: 1.08rem; color: #b5bdd0; line-height: 1.8; margin-bottom: 30px; }
    .xg-code-block {
      background: var(--xg-code-bg);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--xg-shadow);
      font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
      font-size: 0.88rem;
      position: relative;
      overflow: hidden;
    }
    .xg-code-header {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .xg-code-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
    .dot-red { background: #ff5f56; } .dot-yellow { background: #ffbd2e; } .dot-green { background: #27c93f; }
    .xg-code-title { color: var(--xg-text-muted); font-size: 0.8rem; margin-left: 8px; }
    .xg-code-line { color: #f8f8f2; margin-bottom: 8px; line-height: 1.5; }
    .code-hl-key { color: #ff79c6; }
    .code-hl-str { color: #f1fa8c; }
    .code-hl-func { color: #8be9fd; }
    .code-hl-num { color: #bd93f9; }

    /* 2. 倒计时专区 */
    .xg-countdown-wrapper {
      background: var(--xg-dark-card);
      border: 1px solid var(--xg-dark-border);
      border-radius: 16px;
      padding: 36px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    }
    .xg-timer-box { display: flex; gap: 16px; align-items: center; }
    .xg-timer-unit {
      background: var(--xg-dark-surface);
      border: 1px solid rgba(255, 44, 85, 0.3);
      padding: 14px 20px;
      border-radius: 10px;
      text-align: center;
      min-width: 80px;
    }
    .xg-timer-num { font-size: 2.2rem; font-weight: 800; color: #ffffff; line-height: 1; margin-bottom: 4px; }
    .xg-timer-lbl { font-size: 0.75rem; color: var(--xg-text-muted); text-transform: uppercase; }

    /* 3. 活动亮点墙 */
    .xg-highlight-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
    .xg-highlight-card {
      background: var(--xg-dark-card);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      padding: 30px;
      transition: var(--xg-transition);
      position: relative;
      overflow: hidden;
    }
    .xg-highlight-card:hover { transform: translateY(-4px); border-color: rgba(255, 44, 85, 0.4); box-shadow: var(--xg-shadow); }
    .xg-card-icon { font-size: 2rem; margin-bottom: 18px; color: var(--xg-primary); }
    .xg-card-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; color: #ffffff; }
    .xg-card-text { font-size: 0.95rem; color: var(--xg-text-muted); line-height: 1.7; }

    /* 4. 权益 / 礼包 */
    .xg-perk-flex { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
    .xg-perk-item {
      background: var(--xg-dark-surface);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      padding: 24px;
      text-align: center;
      transition: var(--xg-transition);
    }
    .xg-perk-item:hover { border-color: var(--xg-accent); }
    .xg-perk-tag { font-size: 0.75rem; color: var(--xg-accent); font-weight: bold; margin-bottom: 8px; display: block; }
    .xg-perk-val { font-size: 1.8rem; font-weight: 800; color: #fff; margin-bottom: 8px; }

    /* 5. 玩法步骤 */
    .xg-step-track { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; position: relative; }
    .xg-step-card {
      background: var(--xg-dark-card);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      padding: 30px 24px;
      position: relative;
    }
    .xg-step-idx {
      width: 36px;
      height: 36px;
      background: rgba(255, 44, 85, 0.15);
      color: var(--xg-primary);
      border: 1px solid var(--xg-primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 16px;
    }

    /* 6. 奖励预览 */
    .xg-reward-banner {
      background: linear-gradient(135deg, rgba(255,44,85,0.1), rgba(24,26,36,0.9)), url('/assets/images/backpic/back-3.webp') center/cover;
      border: 1px solid var(--xg-dark-border);
      border-radius: 16px;
      padding: 40px;
    }
    .xg-reward-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-top: 24px; }
    .xg-reward-col { background: rgba(15, 17, 23, 0.8); backdrop-filter: blur(8px); padding: 24px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.06); }

    /* 7. 排行列表 Compact Table/List */
    .xg-rank-table { width: 100%; border-collapse: collapse; margin-top: 20px; background: var(--xg-dark-card); border-radius: 12px; overflow: hidden; border: 1px solid var(--xg-dark-border); }
    .xg-rank-table th { background: #151722; color: var(--xg-text-muted); text-align: left; padding: 14px 20px; font-weight: 600; font-size: 0.88rem; }
    .xg-rank-table td { padding: 16px 20px; border-top: 1px solid var(--xg-dark-border); font-size: 0.92rem; }
    .xg-rank-num { font-weight: 800; width: 40px; display: inline-block; color: var(--xg-primary); }

    /* 8. 品牌故事叙事 Band */
    .xg-story-band {
      background: radial-gradient(circle at 80% 50%, rgba(255, 44, 85, 0.08) 0%, transparent 60%), var(--xg-dark-surface);
      padding: 80px 0;
      border-top: 1px solid var(--xg-dark-border);
      border-bottom: 1px solid var(--xg-dark-border);
    }
    .xg-story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
    .xg-story-img { border-radius: 14px; overflow: hidden; box-shadow: var(--xg-shadow); }

    /* 9. 误区澄清 */
    .xg-myth-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
    .xg-myth-card {
      background: var(--xg-dark-card);
      border-radius: 10px;
      padding: 26px;
      border-left: 4px solid var(--xg-primary);
    }
    .xg-myth-title { color: #ff5f56; font-weight: 700; margin-bottom: 8px; font-size: 1.05rem; }
    .xg-fact-title { color: #50fa7b; font-weight: 700; margin-top: 14px; margin-bottom: 6px; font-size: 1.05rem; }

    /* 10. 安全与平台合规审计 */
    .xg-audit-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
    .xg-audit-item {
      background: var(--xg-dark-surface);
      border: 1px solid var(--xg-dark-border);
      padding: 20px;
      border-radius: 8px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .xg-audit-check { color: #50fa7b; font-weight: bold; font-size: 1.2rem; }

    /* 11. 直播预告与专属活动 */
    .xg-live-box {
      background: var(--xg-dark-card);
      border: 1px solid var(--xg-dark-border);
      border-radius: 14px;
      overflow: hidden;
      display: flex;
      flex-wrap: wrap;
    }
    .xg-live-cover { flex: 1 1 360px; min-height: 260px; background: url('/assets/images/coverpic/cover-2.webp') center/cover; position: relative; }
    .xg-live-badge { position: absolute; top: 16px; left: 16px; background: rgba(255, 44, 85, 0.9); color: #fff; padding: 4px 10px; border-radius: 4px; font-size: 0.8rem; font-weight: 700; }
    .xg-live-detail { flex: 1 1 400px; padding: 36px; display: flex; flex-direction: column; justify-content: center; }

    /* 12. 合作流程 */
    .xg-flow-track { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
    .xg-flow-card { background: var(--xg-dark-surface); border: 1px solid var(--xg-dark-border); padding: 24px; border-radius: 8px; }

    /* 13. 资讯专区 */
    .xg-news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
    .xg-news-card {
      background: var(--xg-dark-card);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      overflow: hidden;
      transition: var(--xg-transition);
    }
    .xg-news-card:hover { transform: translateY(-4px); border-color: rgba(255, 44, 85, 0.3); }
    .xg-news-thumb { height: 180px; width: 100%; object-fit: cover; }
    .xg-news-body { padding: 22px; }
    .xg-news-date { font-size: 0.8rem; color: var(--xg-text-muted); margin-bottom: 8px; display: block; }
    .xg-news-heading { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: #ffffff; }

    /* 14. 创作者真实口碑墙 */
    .xg-quote-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
    .xg-quote-card {
      background: var(--xg-dark-surface);
      border: 1px solid var(--xg-dark-border);
      border-radius: 12px;
      padding: 26px;
      position: relative;
    }
    .xg-quote-author { display: flex; align-items: center; gap: 12px; margin-top: 18px; }
    .xg-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--xg-dark-border); border: 2px solid var(--xg-primary); }

    /* 15. 报名入口 (收口行动) */
    .xg-cta-card {
      background: linear-gradient(135deg, rgba(255,44,85,0.15) 0%, rgba(24,26,36,0.95) 100%), url('/assets/images/backpic/back-4.jpg') center/cover;
      border: 1px solid rgba(255, 44, 85, 0.3);
      border-radius: 20px;
      padding: 60px 40px;
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .xg-form-wrapper { display: flex; gap: 12px; justify-content: center; max-width: 520px; margin: 28px auto 0; flex-wrap: wrap; }
    .xg-input {
      flex: 1 1 280px;
      padding: 14px 18px;
      border-radius: 6px;
      background: rgba(15, 17, 23, 0.8);
      border: 1px solid var(--xg-dark-border);
      color: #fff;
      font-size: 0.95rem;
      outline: none;
    }
    .xg-input:focus { border-color: var(--xg-primary); }

    /* 页脚 */
    .xg-footer {
      background: #0b0c10;
      border-top: 1px solid var(--xg-dark-border);
      padding: 60px 0 30px;
      font-size: 0.9rem;
      color: var(--xg-text-muted);
    }
    .xg-footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; margin-bottom: 40px; }
    .xg-footer-brand { max-width: 380px; }
    .xg-footer-col h5 { font-size: 1rem; color: #ffffff; margin-bottom: 16px; font-weight: 600; }
    .xg-footer-col ul { list-style: none; margin: 0; padding: 0; }
    .xg-footer-col li { margin-bottom: 10px; }
    .xg-footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 24px; text-align: center; font-size: 0.82rem; }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .xg-hero-title { font-size: 2.3rem; }
      .xg-story-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .xg-section { padding: 60px 0; }
      .xg-hero-title { font-size: 1.85rem; }
      .xg-section-title { font-size: 1.7rem; }
      .xg-countdown-wrapper { flex-direction: column; text-align: center; }
      .xg-timer-box { justify-content: center; }
      .xg-cta-card { padding: 40px 20px; }
      .xg-hero-content { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .xg-timer-unit { min-width: 65px; padding: 10px; }
      .xg-timer-num { font-size: 1.6rem; }
    }