/* ==========================================================================
   托管邦建站 tuoguanbang.net.cn - 响应式样式表
   完美适配电脑、平板、手机
   ========================================================================== */

/* ---------- 大屏适配（1400px 以上） ---------- */
@media (min-width: 1400px) {
  .container { max-width: 1320px; }
  .container-wide { max-width: 1500px; }
}

/* ---------- 平板横屏（1024px - 1199px） ---------- */
@media (max-width: 1199px) {
  .container { padding: 0 24px; }

  .hero-grid { gap: 40px; }
  .hero-collage { height: 460px; }

  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 32px;
  }
  .footer-col:nth-child(4), .footer-col:nth-child(5) {
    grid-column: span 1;
  }

  .service-detail-layout {
    grid-template-columns: 1fr;
  }
  .service-side-nav {
    position: static;
    order: -1;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .join-layout {
    grid-template-columns: 1fr;
  }

  .solution-detail-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .solution-detail-img { height: 320px; }
}

/* ---------- 平板竖屏（768px - 1023px） ---------- */
@media (max-width: 1023px) {
  .container { padding: 0 20px; }
  .section { padding: 70px 0; }

  /* 导航切换为汉堡菜单 */
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }

  /* 英雄区 */
  .hero-home { min-height: auto; padding: 110px 0 60px; }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-collage { height: 380px; max-width: 560px; margin: 0 auto; }
  .hero-stats { justify-content: flex-start; }

  /* 时间线改为单列 */
  .timeline-grid {
    grid-template-columns: 1fr;
  }
  .timeline-grid::before {
    left: 28px;
  }
  .tl-item {
    padding: 24px 24px 24px 64px !important;
    text-align: left !important;
  }
  .tl-item::before {
    left: 21px !important;
    right: auto !important;
  }
  .tl-item .tl-icon { margin-left: 0 !important; }

  /* 网格改为2列 */
  .service-grid,
  .case-grid,
  .news-grid,
  .culture-grid,
  .solution-grid,
  .docs-grid,
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 流程线 */
  .process-line {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 0;
  }
  .process-line::before { display: none; }

  /* 统计带 */
  .stats-band, .about-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 0;
  }
  .stats-item:nth-child(2), .about-stat-card:nth-child(2) { border-right: 0; }

  /* CTA */
  .cta-banner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 24px;
  }
  .cta-banner .flex { justify-content: center !important; }

  /* 页脚 */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-col:first-child { grid-column: span 2; }

  /* 报价 */
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .pricing-card.featured { transform: none; }

  /* 资讯列表 */
  .news-list-layout { grid-template-columns: 1fr; }
  .news-list-item { grid-template-columns: 200px 1fr; }

  /* 网站地图 */
  .sitemap-grid { grid-template-columns: repeat(2, 1fr); }

  /* 合作伙伴 */
  .partners-grid { grid-template-columns: repeat(3, 1fr); }

  /* 下载中心 */
  .download-grid { grid-template-columns: 1fr; }

  /* 文章详情 */
  .article-detail, .doc-detail-body, .legal-page { padding: 32px 24px; }
  .case-detail-body, .service-detail-main, .case-detail-header { padding: 28px 24px; }

  /* 服务特性 */
  .service-feature-list { grid-template-columns: 1fr; }
  .service-steps { grid-template-columns: repeat(2, 1fr); gap: 24px 0; }
  .service-step:not(:last-child)::after { display: none; }

  /* 案例结果 */
  .case-results { grid-template-columns: 1fr; }

  /* 历程 */
  .history-axis::before { left: 60px; }
  .history-year { width: 50px; font-size: 1.1rem; }
  .history-content { margin-left: 10px; }
  .history-content::before { left: -17px; }

  /* 垂直流程 */
  .process-vertical::before { left: 28px; }
  .pv-item { gap: 20px; }
  .pv-item .pv-num { width: 56px; }
  .pv-item .pv-num .num-circle { width: 44px; height: 44px; font-size: 1rem; }
}

/* ---------- 手机（480px - 767px） ---------- */
@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }

  body { font-size: 15px; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }

  .header-bar { height: 64px; }
  .brand img { width: 34px; height: 34px; }
  .brand { font-size: 1rem; gap: 8px; }
  .brand-text small { display: none; }

  .mobile-drawer { top: 64px; height: calc(100vh - 64px); }

  /* 英雄区 */
  .hero-home { padding: 96px 0 50px; }
  .hero-collage { height: 300px; }
  .hero-stat { padding: 0 16px; }
  .hero-stat .num { font-size: 1.5rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  /* 网格改为单列 */
  .service-grid,
  .case-grid,
  .news-grid,
  .culture-grid,
  .solution-grid,
  .docs-grid,
  .team-grid,
  .honor-wall,
  .partners-grid {
    grid-template-columns: 1fr;
  }

  /* 流程线 */
  .process-line { grid-template-columns: 1fr; gap: 28px; }

  /* 统计带 */
  .stats-band, .about-stats { grid-template-columns: 1fr; gap: 16px; }
  .stats-item, .about-stat-card { border-right: 0 !important; border-bottom: 1px solid rgba(255,253,248,0.1); padding-bottom: 16px; }
  .stats-item:last-child, .about-stat-card:last-child { border-bottom: 0; }

  /* 页脚 */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-col:first-child { grid-column: span 1; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* 资讯列表 */
  .news-list-item {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .news-list-item .nli-img { min-height: 180px; }
  .news-list-item .nli-body { padding: 20px; }

  /* 网站地图 */
  .sitemap-grid { grid-template-columns: 1fr; }

  /* 表单 */
  .form-grid-2 { grid-template-columns: 1fr; gap: 0; }

  /* 文章详情 */
  .article-detail, .doc-detail-body, .legal-page { padding: 24px 18px; }
  .article-detail .article-header h1 { font-size: 1.4rem; }
  .article-detail .article-meta { flex-direction: column; gap: 8px; }

  .case-detail-body, .service-detail-main, .case-detail-header { padding: 24px 18px; }
  .case-detail-img, .service-detail-img { height: 220px; }
  .case-meta-row { flex-direction: column; gap: 16px; }

  /* 服务步骤 */
  .service-steps { grid-template-columns: 1fr; }

  /* 历程 */
  .history-axis::before { left: 16px; }
  .history-item { flex-direction: column; gap: 8px; }
  .history-year { width: auto; text-align: left; padding-left: 40px; }
  .history-content { margin-left: 0; }
  .history-content::before { left: -28px; top: -32px; }

  /* 垂直流程 */
  .process-vertical::before { left: 16px; }
  .pv-item { flex-direction: column; gap: 12px; }
  .pv-item .pv-num { width: auto; text-align: left; padding-left: 24px; }
  .pv-item .pv-num .num-circle { margin: 0; }

  /* 404 */
  .error-page .error-code { font-size: 5rem; }

  /* 联系 */
  .contact-info-panel, .contact-form-panel { padding: 28px 22px; }

  /* FAQ */
  .faq-q { padding: 18px 20px; gap: 12px; }
  .faq-q h4 { font-size: 0.95rem; }
  .faq-a-inner { padding: 0 20px 20px 52px; }

  /* 下载 */
  .download-item { flex-direction: column; text-align: center; }
  .download-item .dl-info { text-align: center; }

  /* 返回顶部 */
  .back-to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }

  /* 页头 */
  .page-hero { padding: 110px 0 48px; }
}

/* ---------- 小屏手机（320px - 479px） ---------- */
@media (max-width: 479px) {
  .container { padding: 0 14px; }

  .hero-collage { height: 260px; }
  .hero-stat { padding: 0 12px; }
  .hero-stat .num { font-size: 1.3rem; }

  .btn { padding: 10px 22px; font-size: 0.88rem; }
  .btn-lg { padding: 13px 28px; font-size: 0.94rem; }

  .section-head { margin-bottom: 36px; }

  .footer-social { justify-content: center; }
}

/* ---------- 横屏手机优化 ---------- */
@media (max-height: 500px) and (orientation: landscape) {
  .hero-home { min-height: auto; padding: 100px 0 50px; }
  .hero-collage { height: 280px; }
}

/* ---------- 打印样式 ---------- */
@media print {
  .site-header, .mobile-drawer, .overlay, .back-to-top, .nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
  .section { padding: 20px 0; page-break-inside: avoid; }
  .hero-home { min-height: auto; padding: 20px 0; }
}