/**
 * Public site — screens up to 900px wide.
 * Keeps the original 3-row header + horizontal nav; scales typography and row heights with viewport.
 * (Avoids transform:scale so sticky header / flow heights stay correct.)
 */
@media (max-width: 900px) {
  /* :root --nav-h：sticky/scroll-margin 与 breakpoints.css 同步 */
  :root {
    --nav-h: clamp(92px, 22vw + 42px, 160px);
  }

  .site-header {
    --nav-h: clamp(92px, 22vw + 42px, 160px);
    --header-r2-r3-strip: clamp(34px, 4.4vw + 22px, 52px);
  }

  .site-header .site-logo-img {
    width: clamp(36px, 9.5vw, 48px);
    height: clamp(36px, 9.5vw, 48px);
  }

  /* 顶栏工具行（合并原 R1+R2）：收紧 APP ↔ 搜索/登录/语言 间距 */
  .site-header .header-row--topbar {
    gap: 4px 6px;
    padding: 4px clamp(6px, 1.8vw, 10px);
    min-height: max(var(--hdr-r1-min-h, 44px), var(--hdr-r2-min-h, var(--header-r2-r3-strip)));
  }

  /* 顶栏工具区布局见 header-topbar-mobile-fit.css */

  .site-header .header-r2-download {
    flex: 0 0 auto;
  }

  .site-header .header-tools .nav-app-download .nav-app-btn {
    max-width: min(100%, 22vw);
    padding-inline: 6px !important;
  }

  .site-header .nav-app-download .nav-app-btn {
    max-width: min(100%, 22vw);
    padding-inline: 6px !important;
  }

  .site-header .header-r2-inner {
    flex: 1 1 auto;
    min-width: 0;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-end;
    gap: 4px 6px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .site-header .header-r2-inner::-webkit-scrollbar {
    display: none;
  }

  .site-header .search-box--header {
    flex: 1 1 56px;
    max-width: min(118px, 30vw);
    gap: 3px;
  }

  .site-header .search-box--header input[type="search"],
  .site-header .search-box--header input {
    min-width: 0;
    padding: 4px 6px;
    font-size: 12px;
  }

  .site-header .header-r2-auth {
    flex: 0 0 auto;
    align-items: center;
    align-self: center;
  }

  .site-header .nav-auth-block {
    flex-wrap: nowrap;
    align-items: center;
    align-content: center;
    gap: 4px;
    justify-content: flex-end;
  }

  .site-header .nav-auth-block .btn-sm:not(.nav-auth-entry) {
    padding-inline: 7px !important;
    min-height: clamp(30px, calc(var(--header-r2-r3-strip) - 6px), 40px);
  }

  .site-header .lang-switch {
    gap: 2px 4px;
    flex: 0 0 auto;
    margin-left: 2px;
    font-size: clamp(10px, 2.6vw + 8px, 12px);
  }

  .site-header .lang-switch .lang-link {
    padding: 2px 4px;
  }

  /*
   * R3 过高原因（精准）：
   * 1) style.css 里 height/min/max 都绑定 var(--hdr-r3-min-h, var(--header-r2-r3-strip))，
   *    与第二行按钮条同高（约 34–52px），导航文字只有一行，居中后上下留白大。
   * 2) 后台「顶栏分行主题」会给第三行写内联 --hdr-r3-min-h，可能更大；仅靠普通 CSS 易被覆盖或缓存未刷新。
   * 下方用 !important 兜底；app.js 在窄屏会再清除变量并强制 auto（bindHeaderRow3MobileHeight）。
   */
  .site-header .header-row--r3 {
    height: auto !important;
    min-height: 0 !important;
    max-height: none !important;
    padding-top: 3px;
    padding-bottom: 5px;
    align-items: center;
  }

  .site-header .header-nav-main {
    min-height: 0 !important;
    height: auto !important;
    align-items: center;
  }

  .site-header .header-nav-main .nav-links {
    flex: 1 1 auto;
    min-height: 0 !important;
    padding-block: 0;
    align-items: center;
    align-self: center;
  }

  .site-header .header-row--r3 .nav-links a {
    padding-top: 4px !important;
    padding-bottom: 4px !important;
    line-height: 1.2 !important;
  }

  /* Full-bleed home hero: avoid 100vw horizontal overflow */
  .home-three-rows-wrap.home-three-rows-wrap--has-bg,
  .products-page-wrap.products-page-wrap--has-bg {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
  }

  /* 右下角快捷联系：整体缩小，减少遮挡商品区（图标尺寸覆盖 JS 写入的 width/height） */
  .floating-stack {
    --float-fs: clamp(7.5px, 1.85vw + 6px, 10.5px);
    right: max(4px, var(--safe-right)) !important;
    bottom: max(6px, var(--safe-bottom)) !important;
    gap: 0.32em !important;
    /* 放宽上限以便中文标签整词显示，不再被父级 max-width 挤省略号 */
    max-width: min(calc(100vw - var(--safe-left) - var(--safe-right) - 16px), 14.5rem) !important;
  }

  .floating-dock {
    gap: 0.3em !important;
  }

  .floating-dock__btn,
  .floating-dock__btn--static {
    min-height: 2.15em !important;
    padding: 0.2em 0.38em 0.2em 0.3em !important;
    gap: 0.28em !important;
    border-radius: 0.55em !important;
    box-shadow: 0 1px 6px rgba(15, 23, 42, 0.07) !important;
    flex-wrap: wrap !important;
    align-content: center !important;
  }

  .floating-dock__icon {
    width: 1.72em !important;
    height: 1.72em !important;
    border-radius: 0.38em !important;
  }

  .floating-dock__label {
    max-width: none !important;
    overflow: visible !important;
    text-overflow: clip !important;
    white-space: normal !important;
    line-height: 1.28 !important;
    word-break: keep-all;
  }

  .online-consult-fab {
    min-height: 2.15em !important;
    padding: 0.26em 0.52em !important;
    font-size: 0.94em !important;
    gap: 0.28em !important;
    box-shadow: 0 1px 8px var(--shadow-card) !important;
    max-width: min(calc(100vw - var(--safe-left) - var(--safe-right) - 16px), 14.5rem) !important;
    white-space: normal !important;
    text-align: center;
    line-height: 1.28 !important;
    word-break: keep-all;
  }

  .online-consult-fab span:first-child {
    white-space: normal !important;
    word-break: keep-all;
  }

  /*
   * 窄屏通栏：去掉 .main / .pd-wrap 两侧 page-pad 与 content-max 居中留白，
   * 仅保留刘海安全区；登录注册等表单在 .auth-form-wrap 内再留内边距。
   */
  .layout .main,
  .main {
    max-width: none !important;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
    padding-top: clamp(6px, 1.8vw, 14px);
    padding-bottom: max(calc(var(--page-pad) + 54px), calc(var(--safe-bottom) + 38px));
  }

  .auth-form-wrap {
    box-sizing: border-box;
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(12px, 4vw, 22px);
    padding-right: clamp(12px, 4vw, 22px);
  }

  .home-three-rows-inner {
    max-width: none !important;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
    box-sizing: border-box;
  }

  /* 商品详情：外层通栏；主图区取消左右内边距与圆角裁切，主图尽量占满视口宽度 */
  .pd-wrap {
    max-width: none !important;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
    padding-top: clamp(6px, 1.8vw, 14px);
    padding-bottom: clamp(28px, 7vw, 48px);
    box-sizing: border-box;
  }

  .pd-gallery-stage {
    padding-left: 0 !important;
    padding-right: 0 !important;
    min-height: 0 !important;
    aspect-ratio: 1 / 1;
  }

  .pd-gallery-stage .pd-main-img {
    width: auto !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: 100% !important;
    border-radius: 0 !important;
  }

  .pd-breadcrumb,
  .pd-section,
  .pd-shop-card--ali .pd-buy-col {
    padding-left: clamp(10px, 3.2vw, 18px);
    padding-right: clamp(10px, 3.2vw, 18px);
    box-sizing: border-box;
  }

  .pd-gallery-thumbs-bar {
    padding-left: clamp(10px, 3.2vw, 18px);
    padding-right: clamp(10px, 3.2vw, 18px);
  }

  .site-footer-main {
    max-width: none !important;
    box-sizing: border-box;
    padding-left: max(var(--safe-left), clamp(10px, 3vw, 18px));
    padding-right: max(var(--safe-right), clamp(10px, 3vw, 18px));
  }

  .site-footer-bar {
    max-width: none !important;
    box-sizing: border-box;
    padding-left: max(var(--safe-left), clamp(10px, 3vw, 18px));
    padding-right: max(var(--safe-right), clamp(10px, 3vw, 18px));
  }

  /* 列表/首页标题区：去掉外层大留白后，正文略留可读边距 */
  .page-hero,
  .products-section-label,
  .product-cat-nav,
  .product-grid,
  .home-load-more-wrap {
    padding-left: clamp(10px, 3.2vw, 18px);
    padding-right: clamp(10px, 3.2vw, 18px);
    box-sizing: border-box;
  }

}

.auth-login-mode-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.auth-login-mode-btn {
  opacity: 0.88;
}
.auth-login-mode-btn--active {
  opacity: 1;
  border-color: var(--accent);
  color: var(--accent);
}

/* 国际区号：可输入搜索 + 下拉（全站注册/登录/联系/找回密码） */
.intl-phone-cc-combo {
  position: relative;
  flex: 0 0 min(14rem, 42vw);
  min-width: 8.5rem;
  max-width: 16rem;
}
.intl-phone-cc-native-hide {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.intl-phone-cc-input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
}
.intl-phone-cc-input:read-only {
  cursor: pointer;
}
.intl-phone-cc-dropdown-panel {
  position: absolute;
  z-index: 40;
  left: 0;
  right: 0;
  top: calc(100% + 4px);
  display: flex;
  flex-direction: column;
  max-height: min(56vh, 340px);
  margin: 0;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: 0 8px 24px var(--shadow-card);
  overflow: hidden;
}
.intl-phone-cc-dropdown-panel[hidden] {
  display: none !important;
}
.intl-phone-cc-dd-search {
  width: 100%;
  box-sizing: border-box;
  flex: 0 0 auto;
  padding: 8px 10px;
  margin: 0;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.9rem;
}
.intl-phone-cc-dropdown-panel .intl-phone-cc-dropdown {
  position: static;
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  overflow: auto;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
.intl-phone-cc-dropdown li {
  padding: 8px 12px;
  font-size: 0.9rem;
  cursor: pointer;
  line-height: 1.35;
}
.intl-phone-cc-dropdown li:hover,
.intl-phone-cc-dropdown li.intl-phone-cc-li--active {
  background: var(--nav-hover-bg);
}

.auth-register-recovery-hint {
  margin: 0 0 4px;
  padding: 10px 12px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
  border-radius: 8px;
  border: 1px dashed var(--border);
  background: rgba(56, 189, 248, 0.06);
}

/* 登录 / 注册 / 找回密码：接口错误时短暂高亮对应输入，便于用户修改 */
.auth-input-highlight {
  outline: 2px solid var(--accent2, #38bdf8);
  outline-offset: 2px;
  border-radius: 8px;
  transition: outline 0.15s ease;
}

/* 产品列表空状态 / 详情与资讯不存在（全宽可读） */
.catalog-empty-hint {
  width: 100%;
  flex-basis: 100%;
  margin: 0;
  padding: clamp(18px, 4vw, 32px) var(--page-pad, 16px);
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--muted);
  box-sizing: border-box;
}

.pd-not-found {
  padding: clamp(24px, 6vw, 48px) var(--page-pad, 16px);
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  box-sizing: border-box;
}

.pd-not-found .pd-err {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.45;
}

.pd-not-found .pd-err-hint {
  margin: 0 0 18px;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
}

.pd-not-found .pd-err-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}