/* ============================================================
   GROHE cold-tone override — 高仪冷调对比稿
   作用域：body.theme-grohe （仅影响 index-grohe.html）
   思路：德系精密冷峻 —— 冷白纸面 / 石墨墨 / 钢蓝强调，
        信任来自"工程严谨"而非居家温馨。
   ============================================================ */

body.theme-grohe {
  /* 冷调变量重定义（覆盖 :root 的暖调金） */
  --paper: #f5efe4;
  --paper-2: #ece3d4;
  --ink: #14181d;
  --ink-2: #3b434b;
  --ink-3: #6a747e;
  --line: #d6dde3;
  --gold: #2f6da3;            /* 钢蓝强调（替代香槟金） */
  --gold-deep: #1c4a72;
  --gold-soft: rgba(47, 109, 163, 0.10);
}

/* alt 区块冷调底 */
body.theme-grohe .section.alt { background: var(--paper-2); }

/* kicker 冷蓝 */
body.theme-grohe .kicker,
body.theme-grohe .hero-kicker { color: var(--gold-deep); }
body.theme-grohe .hero-kicker::before { background: var(--gold); }

/* Hero 冷调暗角（深蓝黑 + 冷光） */
body.theme-grohe .hero-overlay {
  background:
    linear-gradient(90deg, rgba(10, 20, 30, 0.64) 0%, rgba(10, 20, 30, 0.38) 48%, rgba(10, 20, 30, 0.10) 100%),
    radial-gradient(125% 125% at 82% 0%, rgba(28, 70, 110, 0.22), transparent 55%);
}
body.theme-grohe .hero-rule { background: var(--gold); }
body.theme-grohe .hero-counter { color: #e7eef4; }
body.theme-grohe .hero-nav { color: #e7eef4; border-color: rgba(255,255,255,0.32); }
body.theme-grohe .hero-nav:hover { background: rgba(20,34,46,0.6); border-color: var(--gold); }
body.theme-grohe .hero-dot { border-color: #9cc1de; }
body.theme-grohe .hero-dot.active { background: #9cc1de; border-color: #9cc1de; }

/* 按钮：钢蓝实心（替代香槟金实心） */
body.theme-grohe .btn-gold {
  background: var(--gold-deep);
  border-color: var(--gold-deep);
  color: #fff;
}
body.theme-grohe .btn-gold:hover { background: #163a5a; border-color: #163a5a; transform: translateY(-1px); }
body.theme-grohe .btn-line.on-dark { color: #e7eef4; border-color: rgba(255,255,255,0.42); }

/* 材质宣言 band 冷调叠层 */
body.theme-grohe .material-overlay {
  background:
    linear-gradient(180deg, rgba(10, 20, 30, 0.52), rgba(10, 20, 30, 0.84)),
    linear-gradient(120deg, rgba(28, 70, 110, 0.42), transparent 62%);
}
body.theme-grohe .material-inner .kicker { color: #9cc1de; }

/* 信任栏冷暗 */
body.theme-grohe .trustbar { background: #16242f; color: #e7eef4; }

/* 字体更"工程"：标题字距收紧 */
body.theme-grohe h1,
body.theme-grohe h2,
body.theme-grohe .hero h1 { letter-spacing: -0.022em; }

/* 图标 / 强调线冷蓝 */
body.theme-grohe .feature-icon svg { stroke: var(--gold-deep); }
body.theme-grohe .brand-bar { background: var(--gold); }
body.theme-grohe .site-nav a.active { border-bottom-color: var(--gold); }
body.theme-grohe .point .num { color: var(--gold-deep); }
body.theme-grohe .footer-col h4 { color: var(--gold-deep); }

/* ============================================================
   GROHE 冷调导航 —— 冷白实底 + 极简细线 + 钢蓝强调
   仿高仪（GROHE）官网那种干净、克制、高级的顶栏
   ============================================================ */
body.theme-grohe .site-header {
  background: #ffffff;
  border-bottom: 1px solid #dde3e8;
  box-shadow: 0 1px 0 rgba(20, 34, 46, 0.03), 0 8px 22px -16px rgba(20, 34, 46, 0.22);
}
body.theme-grohe .site-header .brand-word { color: #14181d; }
body.theme-grohe .site-header .brand-sub { color: #6a747e; }
body.theme-grohe .site-nav a { color: #3b434b; }
body.theme-grohe .site-nav a:hover { color: #14181d; }
body.theme-grohe .site-nav a.active { color: #14181d; border-bottom-color: var(--gold); letter-spacing: 0.08em; }
body.theme-grohe .nav-toggle span { background: #14181d; }

/* ============================================================
   Certifications 证书板块（冷调）
   ============================================================ */
body.theme-grohe .cert-lede {
  margin: 14px auto 0;
  max-width: 60ch;
  text-align: center;
  color: #3b434b;
  font-size: 16px;
  line-height: 1.65;
}
body.theme-grohe .cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 42px;
}
body.theme-grohe .cert-card {
  background: #ffffff;
  border: 1px solid #dde3e8;
  border-radius: 4px;
  padding: 22px 20px 18px;
  margin: 0;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
body.theme-grohe .cert-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -18px rgba(20, 34, 46, 0.4);
  border-color: var(--gold);
}
body.theme-grohe .cert-frame {
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: repeating-linear-gradient(135deg, #f4f7fa 0 12px, #eef2f6 12px 24px);
  border: 1px solid #e2e8ee;
  border-radius: 3px;
  color: #6a747e;
}
body.theme-grohe .cert-seal {
  width: 54px; height: 54px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-deep);
  font-weight: 700; font-size: 13px; letter-spacing: 0.04em;
}
body.theme-grohe .cert-frame .cert-tip {
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
}
body.theme-grohe .cert-name {
  margin-top: 14px;
  font-size: 14px; font-weight: 600; letter-spacing: 0.04em; color: #14181d;
}
body.theme-grohe .cert-img {
  width: 100%; height: 100%; object-fit: contain; display: block;
}
@media (max-width: 900px) {
  body.theme-grohe .cert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  body.theme-grohe .cert-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Company / Manufacturing / Cases / Timeline（从国内站拉过来的信任层）
   全部为公开真实事实，冷调呈现
   ============================================================ */

/* 公司数据条 */
body.theme-grohe .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
body.theme-grohe .stat {
  text-align: center; padding: 28px 14px; background: #ffffff;
  border: 1px solid #dde3e8; border-radius: 4px;
}
body.theme-grohe .stat .num {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(30px, 3.6vw, 46px); color: var(--gold-deep); line-height: 1;
}
body.theme-grohe .stat .lab { margin-top: 12px; font-size: 13.5px; color: #3b434b; letter-spacing: 0.02em; }
@media (max-width: 760px) { body.theme-grohe .stat-grid { grid-template-columns: repeat(2, 1fr); } }

/* 真实工程案例 */
body.theme-grohe .case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 44px; }
body.theme-grohe .case { background: #ffffff; border: 1px solid #dde3e8; border-radius: 4px; padding: 24px 24px 26px; }
body.theme-grohe .case .case-tag {
  display: inline-block; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold-deep); margin-bottom: 10px;
}
body.theme-grohe .case h3 { margin: 0 0 8px; font-size: 19px; color: #14181d; letter-spacing: -0.01em; }
body.theme-grohe .case p { margin: 0; font-size: 14.5px; color: #6a747e; line-height: 1.62; }
@media (max-width: 760px) { body.theme-grohe .case-grid { grid-template-columns: 1fr; } }

/* 里程碑时间线 */
body.theme-grohe .timeline { max-width: 760px; margin: 44px auto 0; border-left: 2px solid var(--line); padding-left: 30px; }
body.theme-grohe .tl-item { position: relative; padding: 0 0 32px; }
body.theme-grohe .tl-item:last-child { padding-bottom: 0; }
body.theme-grohe .tl-item::before {
  content: ""; position: absolute; left: -38px; top: 5px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--gold); border: 3px solid #fff; box-shadow: 0 0 0 1px var(--line);
}
body.theme-grohe .tl-year { font-family: var(--font-display); font-weight: 600; font-size: 23px; color: var(--gold-deep); }
body.theme-grohe .tl-item h3 { margin: 5px 0 7px; font-size: 18px; color: #14181d; }
body.theme-grohe .tl-item p { margin: 0; font-size: 15px; color: #6a747e; line-height: 1.62; }

/* 真实认证 / 制造实力卡（替换首页占位证书） */
body.theme-grohe .cert-card .cert-sub { margin-top: 6px; font-size: 12.5px; color: #6a747e; line-height: 1.5; }

/* 公司 / 发货说明条（Products 页） */
body.theme-grohe .company-bar {
  background: #f3f6f9;
  border-top: 1px solid #dde3e8;
  border-bottom: 1px solid #dde3e8;
  padding: 16px 0;
}
body.theme-grohe .company-bar .container { max-width: 1080px; }
body.theme-grohe .company-bar p {
  margin: 0; font-size: 15px; line-height: 1.65; color: #41505c; text-align: center;
}
body.theme-grohe .company-bar strong { color: #18324a; }

/* 两区结构：分区标签 + 全系产品网格 */
body.theme-grohe .zone-kicker { margin: 0 0 26px; font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold-deep); }
body.theme-grohe .zone-head { text-align: center; max-width: 780px; margin: 0 auto 46px; }
body.theme-grohe .zone-head .kicker { color: var(--gold-deep); }
body.theme-grohe .zone-head h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(28px, 4vw, 42px); color: #14181d; margin: 8px 0 14px; letter-spacing: -0.01em; }
body.theme-grohe .zone-head p { font-size: 16px; line-height: 1.7; color: #5b666e; margin: 0; }
body.theme-grohe .range-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
body.theme-grohe .range-card { background: #fff; border: 1px solid #dde3e8; border-radius: 4px; overflow: hidden; display: flex; flex-direction: column; }
body.theme-grohe .range-card .rc-media { aspect-ratio: 1 / 1; background: #eef2f6; overflow: hidden; }
body.theme-grohe .range-card .rc-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
body.theme-grohe .range-card .rc-body { padding: 18px 18px 22px; display: flex; flex-direction: column; flex: 1; }
body.theme-grohe .range-card .rc-tag { align-self: flex-start; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 9px; border-radius: 2px; margin-bottom: 10px; }
body.theme-grohe .rc-tag.tag-high { background: #eaf1f8; color: #2f6da3; }
body.theme-grohe .rc-tag.tag-export { background: #f0ece4; color: #9a7b3f; }
body.theme-grohe .range-card h3 { margin: 0 0 6px; font-size: 18px; color: #14181d; letter-spacing: -0.01em; }
body.theme-grohe .range-card .rc-desc { margin: 0 0 10px; font-size: 14px; color: #5b666e; }
body.theme-grohe .range-card .rc-spec { margin: 0 0 14px; font-size: 12.5px; color: #8a949c; line-height: 1.5; flex: 1; }
body.theme-grohe .range-card .rc-link { font-size: 13.5px; font-weight: 600; color: var(--gold-deep); text-decoration: none; }
body.theme-grohe .range-card .rc-link:hover { text-decoration: underline; }
@media (max-width: 900px) { body.theme-grohe .range-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { body.theme-grohe .range-grid { grid-template-columns: 1fr; } }

/* 全系列分区标题（Domestic / Export） */
body.theme-grohe .sub-zone {
  margin: 48px 0 20px; padding-bottom: 10px; font-size: 13px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase; color: #2f6da3;
  border-bottom: 1px solid #dde3e8;
}
body.theme-grohe .sub-zone:first-of-type { margin-top: 10px; }

/* 产品详情页（URL 参数驱动：product.html?model=xxx） */
body.theme-grohe .pd-wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 4vw, 56px); align-items: start; }
body.theme-grohe .pd-media { background: #eef2f6; border: 1px solid #dde3e8; border-radius: 4px; overflow: hidden; }
body.theme-grohe .pd-media img { width: 100%; height: auto; display: block; }
body.theme-grohe .pd-info .rc-tag { display: inline-block; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; padding: 4px 9px; border-radius: 2px; margin-bottom: 12px; }
body.theme-grohe .pd-info h2 { margin: 0 0 10px; font-family: var(--font-display); font-weight: 600; font-size: clamp(24px, 3vw, 34px); color: #14181d; letter-spacing: -0.01em; }
body.theme-grohe .pd-desc { font-size: 16px; line-height: 1.7; color: #5b666e; margin: 0 0 24px; }
body.theme-grohe .pd-missing { text-align: center; padding: 40px 0; }
body.theme-grohe .pd-missing h2 { font-family: var(--font-display); color: #14181d; margin-bottom: 10px; }
body.theme-grohe .pd-missing p { color: #5b666e; margin-bottom: 22px; }
@media (max-width: 860px) { body.theme-grohe .pd-wrap { grid-template-columns: 1fr; } }

/* 详情页：图放大 + 点击灯箱 + 联系我们弹窗 */
body.theme-grohe .pd-wrap { grid-template-columns: 1.35fr 1fr; }
body.theme-grohe .pd-zoom { display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in; position: relative; }
body.theme-grohe .pd-zoom img { width: 100%; height: auto; display: block; }
body.theme-grohe .pd-zoom-hint {
  position: absolute; right: 12px; bottom: 12px; background: rgba(20,24,29,.72); color: #fff;
  font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 10px;
  border-radius: 2px; opacity: 0; transition: opacity .2s; pointer-events: none;
}
body.theme-grohe .pd-zoom:hover .pd-zoom-hint { opacity: 1; }

/* 图片放大灯箱 */
body.theme-grohe .pd-lightbox { position: fixed; inset: 0; background: rgba(12,18,24,.92); display: flex; align-items: center; justify-content: center; z-index: 1200; padding: 40px; }
body.theme-grohe .pd-lightbox[hidden] { display: none; }
body.theme-grohe .pd-lightbox img { max-width: min(1100px, 92vw); max-height: 88vh; width: auto; height: auto; object-fit: contain; }
body.theme-grohe .pd-lightbox-close { position: absolute; top: 18px; right: 24px; background: none; border: 0; color: #fff; font-size: 38px; line-height: 1; cursor: pointer; }

/* 联系我们弹窗 */
body.theme-grohe .pd-modal { position: fixed; inset: 0; background: rgba(12,18,24,.6); display: flex; align-items: center; justify-content: center; z-index: 1300; padding: 24px; }
body.theme-grohe .pd-modal[hidden] { display: none; }
body.theme-grohe .pd-modal-panel { position: relative; background: #fff; border-radius: 6px; padding: clamp(26px, 4vw, 40px); max-width: 520px; width: 100%; box-shadow: 0 24px 60px rgba(0,0,0,.28); text-align: left; }
body.theme-grohe .pd-modal-panel h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(22px, 2.6vw, 30px); color: #14181d; margin: 8px 0 12px; }
body.theme-grohe .pd-modal-note { font-size: 15px; line-height: 1.65; color: #5b666e; margin: 0 0 22px; }
body.theme-grohe .pd-modal-actions { display: flex; flex-direction: column; gap: 12px; }
body.theme-grohe .pd-modal-actions .btn { text-align: center; }
body.theme-grohe .pd-modal-email-note { margin: 18px 0 0; font-size: 13px; color: #8a949c; }
body.theme-grohe .pd-modal-close { position: absolute; top: 12px; right: 16px; background: none; border: 0; font-size: 30px; line-height: 1; color: #8a949c; cursor: pointer; }

/* 详情页：型号目录（无参数 / 型号不存在时显示，避免空白） */
body.theme-grohe .pd-picker { margin: 28px 0 30px; }
body.theme-grohe .pd-picker .range-card { text-decoration: none; color: inherit; display: block; }
body.theme-grohe .pd-picker .range-card:hover .rc-media img { transform: scale(1.04); }
body.theme-grohe .pd-picker .rc-media { overflow: hidden; }
body.theme-grohe .pd-picker .rc-media img { transition: transform .35s ease; }
body.theme-grohe .pd-missing-note { font-size: 15.5px; line-height: 1.7; color: #5b666e; margin: 10px 0 0; }

/* 图片加载失败兜底 */
body.theme-grohe .pd-img-fallback { margin-top: 16px; padding: 40px 20px; background: #f2f5f7; border: 1px dashed #cfd8de; border-radius: 4px; text-align: center; color: #7c868e; font-size: 14.5px; }
body.theme-grohe .pd-img-fallback[hidden] { display: none; }

/* ===== User Manual（support 页说明书板块）===== */
body.theme-grohe .manual-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 26px 0 34px; }
body.theme-grohe .manual-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
body.theme-grohe .manual-page {
  margin: 0; background: #fff; border: 1px solid #e3e9ed; border-radius: 4px;
  overflow: hidden; transition: transform .25s ease, box-shadow .25s ease;
}
body.theme-grohe .manual-page:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(30,42,51,.10); }
body.theme-grohe .manual-page a { display: block; }
body.theme-grohe .manual-page img { display: block; width: 100%; height: auto; }
body.theme-grohe .manual-page figcaption {
  padding: 10px 12px; font-size: 14px; font-weight: 600; letter-spacing: .02em;
  color: #45525b; background: #f6f8fa; border-top: 1px solid #e3e9ed;
}
@media (max-width: 1000px) { body.theme-grohe .manual-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { body.theme-grohe .manual-grid { grid-template-columns: 1fr; } }

/* ===== EA13 卡片说明书链接（products 页）===== */
body.theme-grohe .manual-link {
  display: inline-block; margin: 2px 0 6px; font-size: 14.5px; font-weight: 600;
  letter-spacing: .02em; color: #456; text-decoration: none;
  border-bottom: 1px solid rgba(70,85,102,.4); padding-bottom: 1px;
}
body.theme-grohe .manual-link:hover { color: #1e2a33; border-bottom-color: #1e2a33; }

/* ===== Knowledge Center + Article ===== */
body.theme-grohe .kb-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
body.theme-grohe .kb-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid #e3e9ed; border-radius: 6px;
  overflow: hidden; text-decoration: none; color: inherit;
  transition: transform .25s ease, box-shadow .25s ease;
}
body.theme-grohe .kb-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(30,42,51,.10); }
body.theme-grohe .kb-card.featured { grid-column: span 2; flex-direction: row; }
body.theme-grohe .kb-card.featured .kb-card-img { flex: 0 0 46%; }
body.theme-grohe .kb-card.featured .kb-card-body { justify-content: center; }
body.theme-grohe .kb-card-img { position: relative; overflow: hidden; background: #eef2f5; }
body.theme-grohe .kb-card-img img { display: block; width: 100%; height: 240px; object-fit: cover; }
body.theme-grohe .kb-card.featured .kb-card-img img { height: 100%; min-height: 300px; }
body.theme-grohe .kb-tag {
  position: absolute; top: 14px; left: 14px;
  font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 999px;
}
body.theme-grohe .kb-tag.live { background: #1e2a33; color: #fff; }
body.theme-grohe .kb-tag.soon { background: #fff; color: #6b7780; border: 1px solid #dde3e8; }
body.theme-grohe .kb-card-body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 9px; }
body.theme-grohe .kb-cat { font-size: 12.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #9c7e3c; }
body.theme-grohe .kb-card h3 { font-family: "Cormorant Garamond", serif; font-weight: 600; font-size: 24px; line-height: 1.2; color: #1e2a33; margin: 0; }
body.theme-grohe .kb-card p { font-size: 15px; line-height: 1.6; color: #4a555d; margin: 0; }
body.theme-grohe .read-more { margin-top: 4px; font-weight: 600; font-size: 14.5px; color: #1e2a33; }
body.theme-grohe .read-more.muted { color: #9aa4ac; font-weight: 500; }

body.theme-grohe .article-wrap { max-width: 760px; margin: 0 auto; padding: 60px 22px 30px; }
body.theme-grohe .article-head { margin-bottom: 26px; }
body.theme-grohe .article-head h1 { font-family: "Cormorant Garamond", serif; font-weight: 700; font-size: 42px; line-height: 1.12; color: #1e2a33; margin: 8px 0 12px; }
body.theme-grohe .article-meta { font-size: 14px; color: #8a949c; letter-spacing: .02em; }
body.theme-grohe .article-hero-fig { margin: 0 0 32px; }
body.theme-grohe .article-hero-fig img { width: 100%; height: auto; border-radius: 6px; display: block; }
body.theme-grohe .article-hero-fig figcaption { font-size: 13px; color: #8a949c; padding-top: 9px; }
body.theme-grohe .article-body { font-size: 17px; line-height: 1.78; color: #364049; }
body.theme-grohe .article-body .lead { font-size: 19px; line-height: 1.7; color: #1e2a33; margin-bottom: 26px; }
body.theme-grohe .article-body h2 { font-family: "Cormorant Garamond", serif; font-weight: 600; font-size: 29px; color: #1e2a33; margin: 38px 0 12px; }
body.theme-grohe .article-body p { margin: 0 0 18px; }
body.theme-grohe .article-body ul { margin: 0 0 20px; padding-left: 22px; }
body.theme-grohe .article-body li { margin-bottom: 10px; }
body.theme-grohe .pull-quote {
  margin: 30px 0; padding: 18px 24px; border-left: 4px solid #9c7e3c;
  background: #faf6ee; font-family: "Cormorant Garamond", serif; font-size: 23px; line-height: 1.4; color: #2a3326; font-style: italic;
}
body.theme-grohe .tip-box {
  margin: 28px 0; padding: 18px 22px; border-radius: 6px;
  background: #f1f5f8; border: 1px solid #dde6ec;
}
body.theme-grohe .tip-box .tip-label { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: #2f6f8f; margin-bottom: 6px; }
body.theme-grohe .tip-box p { margin: 0; font-size: 16px; }
body.theme-grohe .article-cta { display: flex; gap: 14px; flex-wrap: wrap; margin: 38px 0 10px; }

@media (max-width: 760px) {
  body.theme-grohe .kb-grid { grid-template-columns: 1fr; }
  body.theme-grohe .kb-card.featured { grid-column: span 1; flex-direction: column; }
  body.theme-grohe .kb-card.featured .kb-card-img img { min-height: 200px; }
  body.theme-grohe .article-head h1 { font-size: 32px; }
}

/* ===== Certifications & Compliance（why-nalrzkh 页）===== */
body.theme-grohe .cert-band { padding-top: 8px; }
body.theme-grohe .cert-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  max-width: 760px;
}
body.theme-grohe .cert-card {
  margin: 0; background: #fff; border: 1px solid #e3e9ed; border-radius: 6px;
  overflow: hidden; transition: transform .25s ease, box-shadow .25s ease;
}
body.theme-grohe .cert-card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(30,42,51,.10); }
body.theme-grohe .cert-card img { display: block; width: 100%; height: auto; }
body.theme-grohe .cert-card figcaption { padding: 14px 16px 16px; border-top: 1px solid #e3e9ed; background: #f6f8fa; display: flex; flex-direction: column; gap: 4px; }
body.theme-grohe .cert-card figcaption strong { font-size: 15.5px; color: #1e2a33; letter-spacing: .01em; }
body.theme-grohe .cert-card figcaption span { font-size: 13.5px; line-height: 1.55; color: #5b676f; }
body.theme-grohe .cert-facts {
  list-style: none; margin: 30px 0 0; padding: 18px 22px; max-width: 760px;
  background: #f1f5f8; border: 1px solid #dde6ec; border-radius: 6px;
  display: flex; flex-direction: column; gap: 8px;
}
body.theme-grohe .cert-facts li { position: relative; padding-left: 20px; font-size: 15.5px; line-height: 1.55; color: #364049; }
body.theme-grohe .cert-facts li::before { content: "✓"; position: absolute; left: 0; font-weight: 700; color: #2f6f8f; }
@media (max-width: 640px) { body.theme-grohe .cert-grid { grid-template-columns: 1fr; } }