@charset "utf-8";
/* ==========================================================================
   DNCUT 功能组件样式：面包屑 / 语言切换 / 筛选 / 对比 / 选型 / 3D / 招聘
   依赖 theme.css（提供设计令牌）
   ========================================================================== */

/* ---------- 面包屑列表 ---------- */
.crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
}
.crumbs-list li + li::before { content: "/"; margin-right: 6px; color: var(--c-border-2); }

/* ---------- 语言切换器 ---------- */
.lang-switch { position: relative; }
.lang-switch__current {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-size: 0.875rem;
  border: 1px solid var(--c-border-2);
  border-radius: 10px;
  background: #fff;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.lang-switch__current:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-sm);
}
.lang-switch__flag { display: flex; line-height: 1; }
.dncut-flag {
  display: inline-block;
  vertical-align: -1px;
  border-radius: 2px;
  box-shadow: inset 0 0 0 0.5px rgba(0, 0, 0, 0.18);
}
.lang-switch__caret {
  width: 0; height: 0;
  border: 4px solid transparent;
  border-top-color: var(--c-text-3);
  margin-top: 3px;
  transition: transform var(--dur) var(--ease);
}
.lang-switch__more[aria-expanded="true"] .lang-switch__caret { transform: rotate(180deg); }

/* 下拉面板：搜索 + 常用分组 + 更多分组 */
.lang-switch__panel {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 60;
  width: 300px;
  max-width: calc(100vw - 32px);
  max-height: 70vh;
  overflow-y: auto;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) var(--ease);
}
.lang-switch.is-open .lang-switch__panel,
.lang-switch:focus-within .lang-switch__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-switch__search { padding: 2px 2px 6px; margin-bottom: 4px; border-bottom: 1px solid var(--c-border); }
.lang-switch__input {
  width: 100%;
  padding: 6px 8px;
  font-size: 0.8125rem;
  color: inherit;
  background: var(--c-bg-soft);
  border: 1px solid transparent;
  border-radius: 8px;
}
.lang-switch__input:focus { background: #fff; border-color: var(--c-primary); outline: none; }
.lang-switch__title {
  margin: 6px 0 2px;
  padding: 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-text-3);
}
.lang-switch__group--more { margin-top: 4px; border-top: 1px dashed var(--c-border); }
.lang-switch__more {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  margin-top: 6px;
  padding: 7px 8px;
  font-size: 0.8125rem;
  color: var(--c-text-2);
  background: none;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}
.lang-switch__more:hover { background: var(--c-bg-soft); color: var(--c-primary); }
.lang-switch__more-count {
  min-width: 18px;
  padding: 0 5px;
  font-size: 0.6875rem;
  line-height: 16px;
  text-align: center;
  color: var(--c-text-3);
  background: var(--c-bg-soft);
  border-radius: 8px;
}
/* 常用语言两列网格，20+ 语种也不至于面板过高 */
.lang-switch__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 1px 2px;
}
/* 类选择器上的 display 会盖掉 [hidden] 的默认 display:none，必须显式声明 */
.lang-switch__list[hidden],
.lang-switch__group[hidden],
.lang-switch__empty[hidden],
.lang-switch__list li[hidden] { display: none; }
.lang-switch__list a {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 8px;
  font-size: 0.8125rem;
  line-height: 1.3;
  border-radius: 6px;
  transition: background var(--dur) var(--ease);
}
.lang-switch__list a:hover { background: var(--c-bg-soft); color: var(--c-primary); }
.lang-switch__list .is-current a { color: var(--c-primary); font-weight: 700; }
.lang-switch__label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lang-switch__tick { margin-left: auto; font-size: 0.75rem; opacity: 0; }
.lang-switch__list .is-current .lang-switch__tick { opacity: 1; }
.lang-switch__empty { padding: 12px 8px; font-size: 0.8125rem; text-align: center; color: var(--c-text-3); }

/* 列表式（页脚 / 抽屉内）：不浮层，直接平铺 */
.lang-switch--list { position: static; }
.lang-switch--list .lang-switch__current { display: none; }
.lang-switch--list .lang-switch__panel {
  position: static;
  width: auto;
  max-width: none;
  max-height: none;
  overflow: visible;
  padding: 0;
  background: none;
  border: 0;
  box-shadow: none;
  opacity: 1;
  visibility: visible;
  transform: none;
}
.lang-switch--list .lang-switch__list { display: flex; flex-wrap: wrap; gap: 2px 12px; }
.lang-switch--list .lang-switch__list a { padding: 4px 0; font-size: 0.8125rem; }
.lang-switch--list .lang-switch__title { padding: 0; margin: 8px 0 4px; }
.lang-switch--list .lang-switch__search { display: none; }
.lang-switch--list .lang-switch__more { padding: 4px 0; width: auto; }

/* ---------- 筛选栏 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--c-border);
}
.filter-bar a {
  padding: 7px 16px;
  font-size: 0.875rem;
  border: 1px solid var(--c-border-2);
  border-radius: 999px;
  transition: all var(--dur) var(--ease);
}
.filter-bar a:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-bg-soft);
}
.filter-bar a.is-current {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* 视频中心分类筛选：显示每个分类的视频数量 */
.video-filter {
  gap: 7px;
  margin-bottom: var(--sp-3);
}
.video-filter a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.8125rem;
  line-height: 1.5;
}
.video-filter a em {
  font-style: normal;
  font-size: 0.6875rem;
  font-weight: 600;
  min-width: 20px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--c-bg-soft);
  color: var(--c-text-3);
  text-align: center;
}
.video-filter a.is-current em {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}
.video-filter a:hover em {
  background: rgba(14, 79, 159, 0.12);
  color: var(--c-primary);
}

/* ---------- 卡片补充 ---------- */
.card__date {
  font-size: 0.8125rem;
  color: var(--c-muted);
}
.card__views { font-size: 0.8125rem; color: var(--c-muted); }
.card__model {
  display: inline-flex;
  align-self: flex-start;
  padding: 2px 10px;
  font-size: 0.75rem;
  color: var(--c-primary);
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: 999px;
}
.card__foot--split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-1);
  flex-wrap: wrap;
}
.card__foot--split .compare-toggle { padding: 6px 12px; font-size: 0.8125rem; }

/* ---------- 产品对比 ---------- */
.compare__hint {
  padding: var(--sp-4);
  text-align: center;
  color: var(--c-muted);
  background: var(--c-bg-grey);
  border-radius: var(--radius-lg);
}
.compare__actions {
  display: flex;
  gap: var(--sp-2);
  justify-content: center;
  margin-top: var(--sp-3);
}
.compare-table {
  width: 100%;
  margin-top: var(--sp-3);
  overflow-x: auto;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 12px;
}
.compare-table th,
.compare-table td {
  padding: 12px 14px;
  font-size: 0.875rem;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  min-width: 140px;
}
.compare-table thead th { background: var(--c-bg-soft); }
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td { border-bottom: 0; }
.compare-table tbody th {
  width: 150px;
  background: var(--c-bg-grey);
  font-weight: 500;
  color: var(--c-text-2);
}
.compare-table .is-best { color: var(--c-primary); font-weight: 700; }
.compare-table .is-best::after { content: " ★"; color: var(--c-accent); }
.compare-table__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.compare-table__head img {
  width: 100%;
  max-width: 160px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}
.compare-table__remove {
  font-size: 0.75rem;
  color: var(--c-danger);
  border-bottom: 1px solid currentColor;
}

/* 浮动对比栏 */
.compare-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 95;
  padding: 12px 0 calc(12px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.94);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-top: 1px solid var(--c-border);
  box-shadow: 0 -8px 24px -12px rgba(16, 24, 40, 0.18);
}
.compare-bar__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}
.compare-bar__label { font-weight: 700; font-size: 0.875rem; }
.compare-bar__list {
  display: flex;
  gap: 8px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
}
.compare-bar__list li {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-size: 0.8125rem;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  white-space: nowrap;
}
.compare-bar__list button {
  color: var(--c-muted);
  font-size: 1rem;
  line-height: 1;
}
.compare-bar__list button:hover { color: var(--c-danger); }
.compare-bar__actions { display: flex; gap: 8px; }
@media (max-width: 575px) {
  .compare-bar__list { display: none; }
  .compare-bar__actions { flex: 1; }
  .compare-bar__actions .btn { flex: 1; }
}

/* ---------- 对比空态提示 ---------- */
.selector__empty {
  padding: var(--sp-4);
  text-align: center;
  color: var(--c-muted);
  background: var(--c-bg-grey);
  border-radius: var(--radius);
}
/* ---------- 3D 展示 ---------- */
.view3d {
  margin-bottom: var(--sp-4);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-bg-grey);
}
.view3d__stage {
  position: relative;
  aspect-ratio: 16 / 9;
  min-height: 280px;
}
.view3d__canvas { position: absolute; inset: 0; }
.view3d__canvas canvas { width: 100% !important; height: 100% !important; display: block; }
.view3d__poster {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 0.4s var(--ease);
}
.view3d.is-ready .view3d__poster { opacity: 0; pointer-events: none; }
.view3d__loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 12px;
  justify-items: center;
  background: rgba(255, 255, 255, 0.85);
  z-index: 2;
}
.view3d.is-ready .view3d__loading { display: none; }
/* 加载失败：隐藏转圈，保留海报图，不留空白区 */
.view3d.is-failed .view3d__loading { display: none; }
.view3d.is-failed .view3d__tip { color: var(--c-danger); }
.view3d__spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.view3d__tip { font-size: 0.8125rem; color: var(--c-text-3); }
.view3d__toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px var(--sp-2);
  background: #fff;
  border-top: 1px solid var(--c-border);
}
.view3d__btn {
  padding: 6px 12px;
  font-size: 0.8125rem;
  border: 1px solid var(--c-border-2);
  border-radius: var(--radius);
  transition: all var(--dur) var(--ease);
}
.view3d__btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.view3d__btn[aria-pressed="true"] {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}
.view3d__hint { margin-left: auto; font-size: 0.75rem; color: var(--c-muted); }
.view3d:fullscreen .view3d__stage { aspect-ratio: auto; height: 100vh; }

/* 360 序列图 */
.view360 {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-bg-grey);
  cursor: grab;
  touch-action: pan-y;
}
.view360:active { cursor: grabbing; }
.view360__img { width: 100%; user-select: none; }
.view360__hint {
  position: absolute;
  left: 50%; bottom: 12px;
  transform: translateX(-50%);
  padding: 5px 14px;
  font-size: 0.75rem;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 999px;
  pointer-events: none;
}

.product-hero {
  margin-bottom: var(--sp-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

/* ---------- 招聘 ---------- */
.job-list { display: flex; flex-direction: column; gap: var(--sp-2); }
.job-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: var(--sp-3);
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.job-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.job-item.is-expired { opacity: 0.6; }
.job-item__title { font-size: 1.1rem; margin-bottom: 8px; }
.job-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--c-text-3);
}
.job-item__tags li {
  padding: 3px 10px;
  background: var(--c-bg-grey);
  border-radius: 999px;
}
.job-item__tags--lg { margin-bottom: var(--sp-3); }
.job-item__side {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}
.job-item__salary {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-accent);
}
.job-item__status { font-size: 0.8125rem; color: var(--c-muted); }
.job-apply {
  margin-top: var(--sp-4);
  padding: var(--sp-3);
  background: var(--c-bg-soft);
  border-radius: var(--radius-lg);
}
.job-apply__closed { color: var(--c-text-3); }
.duty-list {
  padding-left: 1.3em;
  list-style: disc;
  margin-bottom: var(--sp-3);
}
.duty-list li { margin-bottom: 6px; }

/* ---------- 文章补充 ---------- */
.article__cover {
  margin-bottom: var(--sp-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.article__tags { font-size: 0.8125rem; color: var(--c-muted); }
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-top: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
  font-size: 0.875rem;
}
.post-nav__prev, .post-nav__next { max-width: 48%; }
.post-nav__next { margin-left: auto; text-align: right; }
@media (max-width: 575px) {
  .post-nav__prev, .post-nav__next { max-width: 100%; text-align: left; }
  .post-nav__next { margin-left: 0; }
}

.form-ok {
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: var(--sp-3);
  color: #0a6b2f;
  background: #e8f6ec;
  border: 1px solid #b8e3c6;
  border-radius: var(--radius);
  text-align: center;
}

/* ---------- AI 客服 ---------- */
.aichat {
  position: fixed;
  right: 20px;
  bottom: calc(96px + env(safe-area-inset-bottom, 0px));
  z-index: 120;
}
.aichat__panel {
  display: flex;
  flex-direction: column;
  /* 用 dvw/dvh 适配移动端浏览器地址栏伸缩，避免面板在地址栏收起/展开时跳动；
     旧浏览器不支持 dv* 时回退到 vw/vh（后者仍有效） */
  width: min(370px, calc(100vw - 40px));
  width: min(370px, calc(100dvw - 40px));
  height: min(540px, calc(100vh - 140px));
  height: min(540px, calc(100dvh - 140px));
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: aichatIn var(--dur) var(--ease);
}
@keyframes aichatIn {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}
.aichat__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light));
}
.aichat__avatar {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  font-size: 1.25rem;
  background: rgba(255,255,255,.2);
  border-radius: 50%;
}
.aichat__title { flex: 1; min-width: 0; }
.aichat__title b { display: block; font-size: 0.9375rem; }
.aichat__title small { font-size: 0.75rem; opacity: .85; }
.aichat__close {
  color: #fff;
  font-size: 1rem;
  opacity: .85;
}
.aichat__close:hover { opacity: 1; }

.aichat__body {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  background: var(--c-bg-grey);
  scroll-behavior: smooth;
}
.aichat__msg { display: flex; margin-bottom: 12px; }
.aichat__msg--user { justify-content: flex-end; }
.aichat__bubble {
  max-width: 82%;
  padding: 10px 13px;
  font-size: 0.875rem;
  line-height: 1.65;
  border-radius: 14px;
  word-break: break-word;
}
.aichat__msg--bot .aichat__bubble {
  background: #fff;
  border: 1px solid var(--c-border);
  border-bottom-left-radius: 4px;
}
.aichat__msg--user .aichat__bubble {
  color: #fff;
  background: var(--c-primary);
  border-bottom-right-radius: 4px;
}
/* 打字中的三个点 */
.aichat__typing span {
  display: inline-block;
  width: 6px; height: 6px;
  margin: 0 2px;
  background: var(--c-muted);
  border-radius: 50%;
  animation: aichatBlink 1.2s infinite;
}
.aichat__typing span:nth-child(2) { animation-delay: .2s; }
.aichat__typing span:nth-child(3) { animation-delay: .4s; }
@keyframes aichatBlink {
  0%, 60%, 100% { opacity: .25; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

.aichat__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.aichat__chip {
  padding: 6px 11px;
  font-size: 0.8125rem;
  color: var(--c-primary);
  background: #fff;
  border: 1px solid #c9d6f0;
  border-radius: 999px;
  transition: all var(--dur) var(--ease);
}
.aichat__chip:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

.aichat__foot {
  display: flex;
  gap: 8px;
  padding: 10px;
  background: #fff;
  border-top: 1px solid var(--c-border);
}
.aichat__input {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  font: inherit;
  font-size: 0.875rem;
  border: 1px solid var(--c-border-2);
  border-radius: 999px;
}
.aichat__input:focus {
  outline: none;
  border-color: var(--c-primary);
}
.aichat__send {
  flex: 0 0 40px;
  height: 40px;
  color: #fff;
  background: var(--c-primary);
  border-radius: 50%;
  transition: background var(--dur) var(--ease);
}
.aichat__send:hover { background: var(--c-primary-dark); }
.aichat__send:disabled { background: var(--c-muted); cursor: not-allowed; }

/* 聊天窗留资卡片：销售意向回复后弹出 */
.aichat__lead {
  position: relative;
  margin: 4px 0 10px;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid #c9d6f0;
  border-left: 3px solid var(--c-primary);
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(15, 42, 90, 0.08);
}
.aichat__lead-t {
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--c-text);
}
.aichat__lead form { display: flex; gap: 6px; }
.aichat__lead input {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  font: inherit;
  font-size: 0.8125rem;
  border: 1px solid var(--c-border-2);
  border-radius: 8px;
}
.aichat__lead input:focus { outline: none; border-color: var(--c-primary); }
.aichat__lead form button {
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: #fff;
  background: var(--c-primary);
  border-radius: 8px;
  transition: background var(--dur) var(--ease);
}
.aichat__lead form button:hover { background: var(--c-primary-dark); }
.aichat__lead form button:disabled { background: var(--c-muted); cursor: wait; }
.aichat__lead-x {
  position: absolute;
  top: 4px;
  right: 6px;
  color: var(--c-muted);
  font-size: 12px;
  line-height: 1;
  padding: 4px;
}
.aichat__lead-tip { display: block; margin-top: 6px; color: var(--c-muted); font-size: 0.75rem; }

/* 产品页 WhatsApp / 微信按钮 */
.btn--wa {
  color: #fff;
  background: #25d366;
}
.btn--wa:hover { background: #1fb457; }
.btn--wx {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  background: #07c160;
}
.btn--wx:hover { background: #06ad56; }
.btn--wx.is-copied { background: #0a8f4c; }

.aichat__human {
  display: flex;
  gap: 14px;
  padding: 8px 12px;
  font-size: 0.8125rem;
  background: var(--c-bg-soft);
  border-top: 1px solid var(--c-border);
}
.aichat__human a { color: var(--c-primary); }

/* 浮动入口：避开右下角「回到顶部」按钮列（3×50px + 2×10px 间距 ≈ 170px，加 20px 底距 ≈ 190px） */
.aichat__fab {
  position: fixed;
  right: 20px;
  bottom: calc(200px + env(safe-area-inset-bottom, 0px));
  z-index: 119;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 18px;
  color: #fff;
  background: var(--c-primary);
  border-radius: 999px;
  box-shadow: var(--shadow-lg);
  transition: all var(--dur) var(--ease);
}
.aichat__fab:hover { background: var(--c-primary-dark); transform: translateY(-2px); }
.aichat__fab-icon { font-size: 1.125rem; }
.aichat__fab-text { font-size: 0.875rem; font-weight: 500; }
@media (max-width: 575px) {
  .aichat__fab-text { display: none; }
  /* 移动端 fab 列整体上移，客服按钮回到底部（并避让 Home 指示条安全区） */
  .aichat__fab { width: 54px; height: 54px; padding: 0; justify-content: center; border-radius: 50%; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); }
  .aichat { right: 12px; bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  /* 移动端浮窗与底部工具条错开 */
  .fab { bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
}

/* ---------- 44. 移动端抽屉菜单美化（抽屉内菜单实为 .nav__list，此处用 .drawer 作用域） ---------- */
.drawer__panel {
  width: min(340px, 88vw);
  padding: 0 0 var(--sp-4);
  background: #fff;
}
.drawer__close {
  margin: 0 0 var(--sp-2);
  padding: 14px 18px;
  font-size: 1rem;
  color: var(--c-text-1);
  border-bottom: 1px solid var(--c-border);
}
.drawer__close span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 0.875rem;
  color: var(--c-text-2);
  background: var(--c-bg-grey);
  border-radius: 50%;
}

/* 菜单项：纵向列表 + 分隔线（覆盖桌面 .nav__list 横向样式） */
.drawer .nav__list {
  display: block;
  padding: 4px 18px 0;
  margin: 0;
  list-style: none;
}
.drawer .nav__list > li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  border-bottom: 1px solid rgba(15, 23, 42, 0.07);
}
.drawer .nav__list > li:last-child { border-bottom: 0; }
.drawer .nav__list a {
  flex: 1 1 auto;
  padding: 14px 2px;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--c-text-1);
}

/* 语言区：独立浅色卡片 + 两列对齐网格 */
.drawer__lang {
  margin: var(--sp-3) 14px 0;
  padding: 14px 14px 10px;
  background: var(--c-bg-soft);
  border-radius: 14px;
}
.drawer__lang h4 {
  margin: 0 0 8px;
  padding: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text-3);
}
.drawer__lang .lang-switch__current {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.9375rem;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 10px;
}
.drawer__lang .lang-switch__panel { padding: 8px 4px 0; }
.drawer__lang .lang-switch__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 10px;
}
.drawer__lang .lang-switch__list a {
  padding: 9px 10px;
  font-size: 0.9375rem;
  border-radius: 8px;
}
.drawer__lang .lang-switch__list a:hover { background: rgba(2, 87, 154, 0.08); }
.drawer__lang .lang-switch__title { margin: 2px 0 6px; }
.drawer__lang .lang-switch__flag { flex: 0 0 auto; display: inline-flex; }
.drawer__lang .lang-switch__label { flex: 1 1 auto; }
.drawer__lang .lang-switch__tick { color: var(--c-primary); }

/* ---------- 45. 主导航 mega 分类预览面板 ---------- */
@media (min-width: 992px) {
  .nav__item--mega { position: relative; }
  .mega {
    position: absolute;
    top: 100%;
    left: 50%;
    z-index: 60;
    min-width: 520px;
    max-width: 720px;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(8px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur);
  }
  .nav__item--mega:hover > .mega,
  .nav__item--mega:focus-within > .mega {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
  .mega__inner { display: flex; gap: 26px; align-items: flex-start; }
  .mega__col { min-width: 176px; }
  .mega__col--wide { min-width: 280px; }
  .mega h5 {
    margin: 0 0 10px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-muted);
  }
  .mega__cats { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
  .mega__cats a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.9375rem;
    color: var(--c-text);
    white-space: nowrap;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .mega__cats a:hover { background: var(--c-bg-soft); color: var(--c-primary); }
  .mega__cats span { font-size: 0.75rem; color: var(--c-muted); }
  .mega__products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .mega__prod {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  }
  .mega__prod:hover { border-color: var(--c-accent); box-shadow: var(--shadow-sm); }
  .mega__prod img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 6px; }
  .mega__prod span { font-size: 0.8125rem; line-height: 1.35; color: var(--c-text); }
  .mega__links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
  .mega__links a {
    display: block;
    padding: 7px 10px;
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--c-text);
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .mega__links a:hover { background: var(--c-bg-soft); color: var(--c-primary); }
  .mega__chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; max-width: 420px; }
  .mega__chips a {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--c-border);
    border-radius: 999px;
    font-size: 0.8125rem;
    color: var(--c-text);
    transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .mega__chips a:hover { border-color: var(--c-accent); color: var(--c-primary); }
}