/* ==========================================================================
   MOBILE UX FIX · 2026-10-22
   依据：390×844 / 768×1024 真机参数实测。本块位于样式表末尾，用于覆盖前序规则。
   ========================================================================== */

/* --- 1. 首屏结构：文案与搜索框在前，轮播在后；去掉重复的头部高度预留 --- */
@media (max-width:768px){
  .hero-inner{grid-template-columns:1fr;gap:22px}
  .hero-inner>.hero-visual{order:0}
  .hero{padding-top:22px}
  .hero-visual{margin-top:2px}
}

/* --- 2. 目录网格：手机与平板竖屏统一 2 列，仅极窄屏退 1 列 --- */
@media (max-width:768px){
  .prod-grid,.mfg-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .prod-card{padding:10px}
  .prod-card h3,.prod-card .p-name{font-size:13.5px;line-height:1.35}
  .prod-card img{max-height:150px}
}
@media (max-width:360px){
  .prod-grid,.mfg-grid{grid-template-columns:1fr}
}

/* --- 3. 搜索结果：改为横排条目，一屏可看 4–5 条；容器补内边距 --- */
@media (max-width:768px){
  .category-container{padding-inline:16px}
  .category-title{font-size:23px;margin:8px 0 12px}
  .breadcrumb{font-size:12.5px;margin-bottom:10px}
  .category-count{font-size:12.5px}
  .category-main .products-grid{grid-template-columns:1fr;gap:10px}
  .category-main .product-item{border:1px solid var(--line);border-radius:10px;padding:10px;background:var(--card)}
  .category-main .product-link{display:grid;grid-template-columns:84px 1fr;grid-template-rows:auto auto;
    gap:2px 12px;align-items:center;text-align:left}
  .category-main .product-image{grid-row:1/3;width:84px;height:84px;object-fit:contain;margin:0;
    background:transparent;border:0}
  .category-main .product-title{font-size:15px;margin:0;text-align:left;overflow-wrap:anywhere;line-height:1.35}
  .category-main .product-brand{font-size:12.5px;text-align:left}
}

/* --- 4. 触控目标：头部三个高频控件补足 44px 热区，正文按钮抬到 44px --- */
@media (max-width:768px){
  .nav-burger,.theme-btn,.nav-cta .btn-quote{position:relative}
  .nav-burger::after,.theme-btn::after{content:"";position:absolute;inset:-7px;border-radius:12px}
  .nav-burger{width:40px;height:44px;padding:0;display:inline-flex;align-items:center;justify-content:center}
  .theme-btn{width:40px;height:40px}
  .nav-cta .btn-quote{min-height:44px;display:inline-flex;align-items:center}
  .btn,.cta-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center}
  .hero-popular a,.brand-chips a,.filter-tab{min-height:38px;display:inline-flex;align-items:center}
}

/* --- 5. 表单：字号提到 16px 防止 iOS 聚焦缩放；预留行内错误位 --- */
@media (max-width:768px){
  input:not([type=checkbox]):not([type=radio]):not([type=submit]),
  textarea,select{font-size:16px}
  .nav-search input{font-size:16px}
  .form-row{grid-template-columns:1fr}
  .field-err{display:block;font-size:12px;line-height:1.45;margin-top:4px;color:#c0392b}
  .field-err:empty{display:none}
  [aria-invalid="true"]{border-color:#c0392b!important}
}

/* --- 6. 小字号：10px 级标签抬到 11px，logo 副标在手机上加到 10px --- */
@media (max-width:768px){
  .tags span,.tag{font-size:11px}
  .logo-text .logo-en{font-size:10px}
  .series,.stat-label{font-size:11.5px}
}

/* --- 7. 顶栏：手机上压缩高度并居中，减少无效留白（同步改写 --topbar-h 以保持各页偏移一致） --- */
@media (max-width:560px){
  :root{--topbar-h:30px}
  .topbar{padding:0}
  .topbar-inner{min-height:30px;justify-content:center;gap:0}
  .topbar-links{gap:0}
}

/* --- 8. 导航：701–900px 收起两个次级项后直接显示文字导航，避免平板旋转时控件形态跳变 --- */
@media (min-width:701px) and (max-width:900px){
  .nav-links{display:flex}
  .nav-burger{display:none}
  .nav-links a[href="/selection-guide/"],.nav-links a[href="/blog/"]{display:none}
  .nav-links a{font-size:13.5px;padding:8px 9px}
}

/* --- 9. 联系页信任标签 2×2、博客统计三列（两者样式写在页面内联 <style>，需提高优先级） --- */
@media (max-width:768px){
  .hero-badges{display:grid!important;grid-template-columns:1fr 1fr;gap:8px!important;justify-content:stretch!important}
  .hero-badges>*{justify-content:center;font-size:12px;padding:8px 6px!important;min-width:0}
  .blog-hero{min-height:0!important;padding-bottom:26px!important}
  .blog-hero .hero-stats{display:grid!important;grid-template-columns:repeat(3,1fr);gap:8px!important;margin:16px 0 0!important}
  .blog-hero .hero-stats .stat-item{padding:0!important;border:0!important}
  .blog-hero .hero-stats .stat-number{font-size:22px!important}
  .blog-hero .hero-stats .stat-label{font-size:10.5px!important}
}

/* --- 10. 浮动 WhatsApp：缩小并让出底部空间；页内已有 WhatsApp 卡片时由脚本隐藏 --- */
@media (max-width:768px){
  .wa-float{width:48px;height:48px;right:12px;bottom:14px}
  .footer{padding-bottom:70px}
}
body.zzsl-hide-wa .wa-float{display:none!important}

/* --- 11. 详情页吸底操作条（由脚本注入，滚动超过首屏后出现） --- */
.pd-sticky{position:fixed;left:0;right:0;bottom:0;z-index:880;display:none;gap:8px;
  padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -4px 18px rgba(11,31,58,.1)}
:root[data-theme="dark"] .pd-sticky{background:rgba(13,26,48,.97)}
@media (max-width:768px){
  .pd-sticky.pd-sticky-on{display:flex}
  .pd-sticky a{flex:1;min-height:46px;display:inline-flex;align-items:center;justify-content:center;
    font-size:14px;font-weight:700;border-radius:8px;text-decoration:none;line-height:1}
  .pd-sticky .pd-sticky-quote{background:var(--action);color:#fff}
  .pd-sticky .pd-sticky-wa{background:var(--whatsapp);color:#fff}
  body.pd-has-sticky{padding-bottom:72px}
}

/* --- 12. 抽屉：搜索框与联系入口（由脚本注入） --- */
.drawer-search{display:flex;gap:8px;margin:0 0 10px}
.drawer-search input{flex:1;min-width:0;min-height:44px;padding:10px 12px;border-radius:8px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);color:#fff;font-size:16px}
.drawer-search input::placeholder{color:rgba(255,255,255,.6)}
.drawer-search button{min-width:48px;min-height:44px;border:0;border-radius:8px;
  background:var(--action);color:#fff;font-size:15px;cursor:pointer}
.drawer-contact{display:flex;gap:8px;margin-top:auto;padding-top:14px}
.drawer-contact a{flex:1;min-height:44px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px!important;font-weight:700;border-radius:8px;border:1px solid rgba(255,255,255,.22);
  padding:0!important;border-bottom:0!important;text-decoration:none}
.drawer-contact a.dc-wa{background:var(--whatsapp);border-color:transparent;color:#fff}
body.drawer-open{overflow:hidden}

/* --- 13. 装饰层：显式裁剪，防止父级样式变动后出现横向滚动 --- */
.fx,.hero,.carousel,.page-hero{overflow-x:clip}

/* --- 补丁 2（2026-10-22）：主题按钮特异性 + 搜索结果预留高度 --- */
@media (max-width:768px){
  :root .theme-btn{width:40px;height:40px}
  :root .theme-btn svg{width:18px;height:18px}
  :root .nav-burger{padding:0}
  #search-results{min-height:62vh}
  .category-main .products-grid .product-item{min-height:104px}
}

/* --- 补丁 3（2026-10-22）：汉堡按钮保持三横纹竖向排列，热区 44px --- */
@media (max-width:768px){
  :root .nav-burger{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;
    gap:4px;width:40px;height:44px;padding:0}
  :root .nav-burger span{margin:0;width:20px;height:2px;border-radius:2px;background:#fff}
}

/* ==========================================================================
   MOBILE UX FIX · 第二轮（2026-10-22）
   品牌直达、图片灯箱、首页长列表折叠；汉堡热区补足 44×44
   ========================================================================== */
@media (max-width:768px){
  :root .nav-burger{width:44px;height:44px;flex:none}
  .drawer-brands{display:flex;flex-wrap:wrap;gap:6px;padding:0 8px 14px}
  .drawer-brands a{font-size:12.5px!important;padding:8px 11px!important;line-height:1!important;
    border:1px solid rgba(255,255,255,.24)!important;border-radius:999px;font-weight:600!important}
  .grid-more{display:block;margin:14px auto 0;padding:12px 18px;text-align:center;font-weight:700;
    font-size:14px;border:1px solid var(--line-strong,#cfd4dd);border-radius:8px;
    color:var(--ink,#101828);text-decoration:none;background:var(--card,#fff)}
}
.zzsl-lightbox{position:fixed;inset:0;z-index:1200;background:rgba(4,10,20,.94);
  display:flex;align-items:center;justify-content:center;padding:16px}
.zzsl-lightbox img{max-width:100%;max-height:88vh;object-fit:contain;background:#fff;border-radius:6px}
.zzsl-lightbox button{position:absolute;top:12px;right:12px;width:44px;height:44px;border:0;
  border-radius:50%;background:rgba(255,255,255,.16);color:#fff;font-size:26px;line-height:1;cursor:pointer}

/* --- 补丁 4（2026-10-22）：首页密度 + 平板导航 --- */
@media (max-width:768px){
  .mfg-grid{grid-template-columns:repeat(3,1fr)!important;gap:10px!important}
  .mfg-grid > *{padding:10px 6px!important}
  .mfg-grid img{max-width:78%;height:auto;margin:0 auto}
  .usp-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}
  .testi-grid > *{padding:14px!important}
}
@media (max-width:420px){
  .mfg-grid{grid-template-columns:repeat(2,1fr)!important}
}
@media (min-width:701px) and (max-width:900px){
  :root .nav-burger{display:none!important}
  :root .nav-links{display:flex!important}
  .nav-links a[href="/about-us/"]{display:none}
  .nav-links a{font-size:13px;padding:8px}
}

/* --- 补丁 5（2026-10-22）：手机端品牌墙也用 3 列 --- */
@media (max-width:420px){
  .mfg-grid{grid-template-columns:repeat(3,1fr)!important;gap:8px!important}
  .mfg-grid > *{padding:8px 4px!important}
  .mfg-grid img{max-width:84%!important}
}

/* --- 补丁 6：等宽轨道，避免长型号/长品牌名把某列撑宽 --- */
@media (max-width:768px){
  .prod-grid,.mfg-grid,.products-grid,.usp-grid{grid-template-columns:repeat(var(--cols,2),minmax(0,1fr))!important}
  .prod-grid{--cols:2}
  .mfg-grid,.usp-grid{--cols:3}
  .usp-grid{--cols:2}
  .category-main .products-grid{--cols:1}
}
@media (max-width:360px){
  .prod-grid{--cols:1}
}

/* --- 补丁 7（2026-10-22）：页面头部区块取消重复的导航高度预留（nav 为 sticky，已占文档流） --- */
@media (max-width:768px){
  .page-hero{padding-top:18px;padding-bottom:30px}
}

/* --- 补丁 8：主题按钮与“查看全部”链接补足热区 --- */
@media (max-width:768px){
  :root .theme-btn{width:44px;height:44px}
  .section-link{min-height:40px;display:inline-flex;align-items:center}
}

/* --- 补丁 9：手机端 H1 略收，首屏能同时看到标题与搜索框 --- */
@media (max-width:768px){
  .hero h1{font-size:30px;line-height:1.22}
  .hero .overline{font-size:10.5px;letter-spacing:.14em}
}
/* ---------- 补丁 10：触控目标尺寸（WCAG 2.5.8 AA 24×24 下限 / 主控件 44px） 2026-10-22 ---------- */
@media (max-width:768px){
  /* 顶部工具栏：20px 高 → 32px（节距≥40） */
  :root .topbar-links a{display:inline-flex;align-items:center;min-height:32px}
  /* 头部 logo：38px 高 → 44px，视觉不变只扩热区 */
  :root .logo{display:inline-flex;align-items:center;min-height:44px}
  /* 页脚/页脚组件文字链：17px 高 → 32px，li 间距 8px 使节距 40px */
  :root .foot-col a,
  :root .footer-widget a,
  :root .footer-column a,
  :root .footer-section a,
  :root .footer-menu a,
  :root .foot-col h4 a,
  :root .footer-widget h4 a{display:inline-flex;align-items:center;min-height:32px;line-height:1.35;padding-top:0;padding-bottom:0}
  :root .foot-col li,
  :root .footer-widget li,
  :root .footer-column li{margin-bottom:8px}
  /* 分享按钮：36×36 → 44×44 */
  :root .share-btn{width:44px!important;height:44px!important;min-width:44px!important}
  :root .share-btn svg{width:20px;height:20px}
  /* 博客 Read more：24px 高 → 44px */
  :root a.read-more{display:inline-flex;align-items:center;min-height:44px;padding:0 2px}
  /* 表单控件统一 46px 高（原输入框 43px、下拉 43px） */
  :root input:not([type=checkbox]):not([type=radio]):not([type=submit]):not([type=button]):not([type=hidden]),
  :root select,
  :root textarea{min-height:46px}
}
/* ---------- 补丁 13b：仅加载 main.css 的模板（产品详情/列表/404）触控补齐 2026-10-22 ---------- */
@media (max-width:768px){
  /* 页脚短词（如 "GE" 19px 宽）补最小宽度 */
  :root .foot-col a,
  :root .footer-widget a,
  :root .footer-column a,
  :root .footer-section a,
  :root .footer-menu a,
  :root .foot-col h4 a,
  :root .footer-widget h4 a{display:inline-flex;align-items:center;min-height:32px;min-width:24px;line-height:1.35;padding:0}
  :root .foot-col li,
  :root .footer-widget li,
  :root .footer-column li{margin-bottom:8px}
  /* 面包屑 */
  :root .page-hero .breadcrumb a,
  :root .breadcrumb a{display:inline-flex;align-items:center;min-height:32px;min-width:24px;padding:0 2px}
}
/* ---------- 补丁 21：触屏设备（含平板横屏 1024）触控目标补齐，鼠标端不受影响 2026-10-22 ---------- */
@media (max-width:1024px) and (pointer:coarse){
  :root .topbar-links a{display:inline-flex;align-items:center;min-height:32px}
  :root .logo{display:inline-flex;align-items:center;min-height:44px}
  :root .foot-col a,
  :root .footer-widget a,
  :root .footer-column a,
  :root .footer-section a,
  :root .footer-menu a,
  :root .foot-col h4 a,
  :root .footer-widget h4 a{display:inline-flex;align-items:center;min-height:32px;min-width:24px;line-height:1.35;padding-top:0;padding-bottom:0}
  :root .foot-col li,
  :root .footer-widget li,
  :root .footer-column li{margin-bottom:8px}
  :root .share-btn{width:44px!important;height:44px!important;min-width:44px!important}
  :root .share-btn svg{width:20px;height:20px}
  :root a.read-more{display:inline-flex;align-items:center;min-height:44px}
  :root .popular-list h4 a,
  :root .sidebar-widget h4 a{display:inline-flex;align-items:center;min-height:44px;min-width:24px}
  :root nav.crumbs a,
  :root .crumbs a,
  :root .page-hero .breadcrumb a,
  :root .breadcrumb a{display:inline-flex;align-items:center;min-height:32px;min-width:24px}
  :root input:not([type=checkbox]):not([type=radio]):not([type=submit]):not([type=button]):not([type=hidden]),
  :root select,
  :root textarea{min-height:46px}
  /* iOS 输入框防聚焦缩放 */
  :root input:not([type=checkbox]):not([type=radio]):not([type=submit]),
  :root textarea,
  :root select{font-size:16px}
}