/* roulang page: index */
:root {
      --bg-base: #0D0F12;
      --bg-panel: #16191E;
      --bg-card: #1B1F26;
      --bg-glass: rgba(22, 25, 30, 0.78);
      --primary: #7C3AED;
      --secondary: #06B6D4;
      --accent: #F59E0B;
      --text-main: #F8FAFC;
      --text-sub: #94A3B8;
      --text-body: #CBD5E1;
      --border-light: rgba(255, 255, 255, 0.08);
      --border-active: rgba(6, 182, 212, 0.4);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --glow-purple: rgba(124, 58, 237, 0.25);
      --glow-cyan: rgba(6, 182, 212, 0.25);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    body {
      background-color: var(--bg-base);
      color: var(--text-body);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
      letter-spacing: normal;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部双行导航 */
    .top-status-bar {
      background: #080A0C;
      border-bottom: 1px solid var(--border-light);
      font-size: 13px;
      color: var(--text-sub);
      padding: 8px 0;
    }
    .top-status-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-tags {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10B981;
      box-shadow: 0 0 8px #10B981;
      margin-right: 6px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--bg-glass);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
    }
    .logo-symbol {
      width: 34px;
      height: 34px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      font-size: 18px;
      box-shadow: 0 0 12px var(--glow-cyan);
    }
    .main-nav {
      display: flex;
      gap: 28px;
      list-style: none;
    }
    .main-nav a {
      font-size: 15px;
      color: var(--text-sub);
      font-weight: 500;
    }
    .main-nav a:hover, .main-nav a.active {
      color: var(--secondary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #FFF;
      padding: 10px 22px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 16px var(--glow-purple);
      transition: var(--transition);
      display: inline-block;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 22px var(--glow-cyan);
      color: #FFF;
    }
    .btn-outline {
      border: 1px solid var(--border-light);
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
      padding: 10px 20px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      transition: var(--transition);
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--secondary);
    }

    /* 移动端菜单开关 */
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-main);
      font-size: 24px;
      cursor: pointer;
    }

    /* 通用板块与排版 */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-darker {
      background-color: #0A0C0E;
    }
    .section-panel {
      background-color: var(--bg-panel);
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--secondary);
      background: rgba(6, 182, 212, 0.1);
      border: 1px solid rgba(6, 182, 212, 0.25);
      padding: 4px 14px;
      border-radius: 999px;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 36px;
      color: var(--text-main);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 18px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.8;
    }

    /* 1. Hero：招聘雇主风范，团队亮点 + 技术岗位入口 */
    .hero-section {
      position: relative;
      padding: 120px 0 100px;
      background: linear-gradient(180deg, rgba(13, 15, 18, 0.8) 0%, rgba(13, 15, 18, 0.98) 100%),
                  url('/assets/images/53c0fb4ec18088cd.png') center/cover no-repeat;
      border-bottom: 1px solid var(--border-light);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 48px;
      color: var(--text-main);
      line-height: 1.2;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 24px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, #A78BFA, var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 18px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-btn-group {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-recruiting-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
    }
    .panel-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 12px;
    }
    .panel-head h3 {
      font-size: 16px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .job-item {
      display: block;
      padding: 14px 16px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-light);
      margin-bottom: 12px;
      transition: var(--transition);
    }
    .job-item:hover {
      border-color: var(--secondary);
      background: rgba(6, 182, 212, 0.05);
      transform: translateX(4px);
    }
    .job-header-row {
      display: flex;
      justify-content: space-between;
      font-weight: 600;
      color: var(--text-main);
      font-size: 15px;
      margin-bottom: 4px;
    }
    .job-meta-row {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 2. 选游困境区 (Pain Points) */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .pain-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      transition: var(--transition);
      position: relative;
    }
    .pain-card:hover {
      transform: translateY(-4px);
      border-color: rgba(239, 68, 68, 0.4);
      box-shadow: 0 12px 28px rgba(239, 68, 68, 0.08);
    }
    .pain-num {
      font-size: 14px;
      font-weight: 700;
      color: #EF4444;
      background: rgba(239, 68, 68, 0.1);
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      margin-bottom: 20px;
    }
    .pain-title {
      font-size: 20px;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    /* 3. 算法介绍区 (Intro) */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .intro-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 24px;
    }
    .spec-icon {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background: rgba(124, 58, 237, 0.15);
      border: 1px solid rgba(124, 58, 237, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #A78BFA;
      font-weight: 700;
    }
    .spec-content h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    /* 4. 已上线核心优势 (Features 6宫格) */
    .grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-active);
      box-shadow: 0 12px 28px var(--glow-cyan);
    }
    .feature-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(6, 182, 212, 0.2));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--secondary);
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 19px;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    /* 5. 热门推荐品类 (Solutions 3联排) */
    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .solution-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .solution-card:hover {
      transform: translateY(-5px);
      border-color: var(--secondary);
      box-shadow: 0 16px 36px var(--glow-cyan);
    }
    .solution-thumb {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .solution-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .solution-card:hover .solution-thumb img {
      transform: scale(1.05);
    }
    .solution-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(13, 15, 18, 0.85);
      border: 1px solid var(--accent);
      color: var(--accent);
      padding: 4px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
    }
    .solution-body {
      padding: 26px;
      flex-grow: 1;
    }
    .solution-radar-row {
      margin-top: 18px;
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }
    .radar-score {
      font-size: 20px;
      font-weight: 800;
      color: var(--secondary);
    }

    /* 6. 算法推导演示 (Method 4步骤) */
    .method-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .method-step {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }
    .step-counter {
      font-size: 32px;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.12);
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-name {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    /* 7. 适用人群 (Audiences 4列) */
    .audience-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }
    .audience-box {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .audience-box:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .audience-icon {
      font-size: 28px;
      margin-bottom: 14px;
      display: inline-block;
      color: var(--secondary);
    }
    .audience-box h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    /* 8. 深度体验案例 (Deep Case) */
    .deep-case-card {
      background: linear-gradient(135deg, rgba(27, 31, 38, 0.95), rgba(15, 17, 21, 0.95)),
                  url('/assets/images/aa91926617b97586.jpg') center/cover;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 60px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .case-title {
      font-size: 30px;
      color: var(--text-main);
      font-weight: 800;
      margin-bottom: 20px;
    }
    .case-meta-tag {
      color: var(--accent);
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .quote-box {
      border-left: 3px solid var(--secondary);
      padding-left: 20px;
      margin: 24px 0;
      font-style: italic;
      color: #E2E8F0;
    }

    /* 9. 真实玩家旅程故事 (Stories 双列) */
    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      display: grid;
      grid-template-columns: 180px 1fr;
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .story-thumb {
      height: 100%;
      min-height: 220px;
    }
    .story-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-content {
      padding: 24px;
    }
    .story-user {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }
    .story-role {
      font-size: 12px;
      color: var(--secondary);
      background: rgba(6, 182, 212, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 10. 关键指标数据条 (Stats) */
    .stats-bar-section {
      background: linear-gradient(90deg, #13171D 0%, #1A202A 50%, #13171D 100%);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 48px 0;
    }
    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .stat-number {
      font-size: 44px;
      font-weight: 900;
      color: var(--text-main);
      background: linear-gradient(135deg, #FFF, var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
    }
    .stat-label {
      font-size: 14px;
      color: var(--text-sub);
    }

    /* 11. 玩家口碑 (Reviews 3列) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .review-stars {
      color: var(--accent);
      margin-bottom: 14px;
      font-size: 15px;
    }
    .review-text {
      font-size: 15px;
      color: var(--text-body);
      margin-bottom: 20px;
      line-height: 1.7;
    }
    .review-author {
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-sub);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 12px;
    }

    /* 12. 前沿算法资讯 (News 3列) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 200px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
    }
    .news-date {
      font-size: 12px;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .news-item h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    /* 13. 问答解答 (FAQ 手风琴) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    details.faq-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      transition: var(--transition);
      overflow: hidden;
    }
    details.faq-item[open] {
      border-color: var(--border-active);
    }
    summary.faq-question {
      padding: 20px 24px;
      font-size: 17px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    summary.faq-question::-webkit-details-marker {
      display: none;
    }
    summary.faq-question::after {
      content: "+";
      font-size: 20px;
      color: var(--secondary);
      transition: transform 0.2s;
    }
    details[open] summary.faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      padding: 0 24px 22px;
      font-size: 15px;
      color: var(--text-body);
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }

    /* 14. 转化收拢区 (CTA) */
    .cta-card {
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(6, 182, 212, 0.15)),
                  var(--bg-panel);
      border: 1px solid var(--border-active);
      border-radius: var(--radius-lg);
      padding: 64px 32px;
      text-align: center;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
      max-width: 960px;
      margin: 0 auto;
    }
    .cta-card h2 {
      font-size: 38px;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .cta-form-row {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 540px;
      margin: 32px auto 16px;
    }
    .cta-input {
      flex: 1;
      background: rgba(13, 15, 18, 0.8);
      border: 1px solid var(--border-light);
      border-radius: 999px;
      padding: 14px 22px;
      font-size: 15px;
      color: #FFF;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--secondary);
    }
    .cta-tips {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 页脚 */
    .site-footer {
      background: #090B0D;
      border-top: 1px solid var(--border-light);
      padding: 72px 0 32px;
      color: var(--text-sub);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 56px;
    }
    .footer-logo {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      display: inline-block;
    }
    .footer-col h5 {
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--secondary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .grid-6 {
        grid-template-columns: repeat(2, 1fr);
      }
      .method-timeline, .audience-grid, .stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .deep-case-card {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-status-bar {
        display: none;
      }
      .main-nav, .nav-actions .btn-outline {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-h1 {
        font-size: 34px;
      }
      .pain-grid, .solution-grid, .grid-6, .news-grid, .review-grid, .story-grid {
        grid-template-columns: 1fr;
      }
      .method-timeline, .audience-grid, .stats-row {
        grid-template-columns: 1fr;
      }
      .story-card {
        grid-template-columns: 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .cta-form-row {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }