/* 美彦雾森系统 - 园林主题 · 国润风格 */
:root {
  --green: #1a7a4c;
  --green-dark: #0f5c38;
  --green-light: #2d9a62;
  --green-pale: #e8f5ee;
  --gold: #c9a227;
  --dark: #1a2e24;
  --gray-700: #3d4f45;
  --gray-500: #6b7c72;
  --gray-200: #dde8e2;
  --gray-100: #f4f8f6;
  --white: #fff;
  --shadow: 0 4px 20px rgba(26,122,76,0.12);
  --header-h: 70px;
  --topbar-h: 40px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + var(--topbar-h)); }
body { font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif; color: var(--gray-700); line-height: 1.7; background: var(--white); }
a { text-decoration: none; color: inherit; transition: .2s; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 顶部热线 */
.topbar { background: var(--green-dark); color: rgba(255,255,255,.85); height: var(--topbar-h); font-size: 13px; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.hotline { color: var(--gold); font-size: 18px; font-weight: 700; margin-left: 8px; }
.topbar-contact { display: flex; align-items: center; gap: 8px; }

/* 导航 */
.header { position: sticky; top: 0; z-index: 1000; background: var(--white); box-shadow: 0 2px 12px rgba(0,0,0,.08); height: var(--header-h); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-mark { background: var(--green); color: var(--white); padding: 4px 10px; border-radius: 4px; font-weight: 700; font-size: 18px; }
.logo-text { font-size: 20px; font-weight: 700; color: var(--dark); }
.main-nav { display: flex; gap: 28px; }
.main-nav a { font-size: 15px; color: var(--gray-700); font-weight: 500; position: relative; padding: 4px 0; }
.main-nav a:hover { color: var(--green); }
.main-nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--green); transition: .3s; }
.main-nav a:hover::after { width: 100%; }
.header-cta { padding: 8px 20px; font-size: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.nav-toggle span { width: 24px; height: 2px; background: var(--dark); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 4px; font-size: 15px; font-weight: 500; border: none; cursor: pointer; font-family: inherit; transition: .2s; }
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-200); }
.btn-secondary:hover { background: var(--green-pale); color: var(--green-dark); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-white { background: var(--white); color: var(--green); }
.btn-white:hover { background: var(--green-pale); }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn-block { width: 100%; }

/* 轮播 */
.carousel { position: relative; height: 560px; overflow: hidden; background: var(--dark); }
.carousel-track { display: flex; height: 100%; transition: transform .6s ease; }
.carousel-slide { flex: 0 0 100%; position: relative; height: 100%; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; }
.carousel-overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(15,92,56,.75) 0%, rgba(15,92,56,.3) 50%, transparent 100%); display: flex; align-items: center; }
.carousel-caption { color: var(--white); padding: 0 80px; max-width: 600px; }
.carousel-caption h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.carousel-caption p { font-size: 18px; opacity: .9; margin-bottom: 24px; }
.carousel-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.carousel-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.4); border: none; cursor: pointer; transition: .3s; }
.carousel-dot.active { background: var(--white); width: 28px; border-radius: 5px; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.2); color: var(--white); border: none; width: 48px; height: 48px; border-radius: 50%; font-size: 28px; cursor: pointer; transition: .2s; backdrop-filter: blur(4px); }
.carousel-btn:hover { background: rgba(255,255,255,.35); }
.carousel-btn.prev { left: 20px; }
.carousel-btn.next { right: 20px; }

/* 通用区块 */
.section { padding: 80px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 2rem; color: var(--dark); margin-bottom: 12px; position: relative; display: inline-block; }
.section-head h2::after { content: ''; display: block; width: 50px; height: 3px; background: var(--green); margin: 12px auto 0; }
.section-head p { color: var(--gray-500); max-width: 640px; margin: 16px auto 0; }
.section-head.light h2 { color: var(--white); }
.section-head.light p { color: rgba(255,255,255,.75); }
.section-head.align-left { text-align: left; }
.section-tag { color: var(--green); font-size: 13px; letter-spacing: 3px; font-weight: 600; }

/* 解决方案 */
.solutions-section { background: var(--gray-100); }
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.solution-card { background: var(--white); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); transition: .3s; }
.solution-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(26,122,76,.18); }
.solution-img { height: 200px; background-size: cover; background-position: center; }
.solution-body { padding: 24px; }
.solution-body h3 { font-size: 1.125rem; color: var(--dark); margin-bottom: 10px; }
.solution-body p { font-size: 14px; color: var(--gray-500); margin-bottom: 16px; line-height: 1.8; }
.solution-link { color: var(--green); font-size: 14px; font-weight: 500; }
.solution-link:hover { color: var(--green-dark); }

/* 产品 */
.products-section { background: var(--green-dark); }
.category-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.tab-btn { padding: 8px 20px; border: 1px solid rgba(255,255,255,.3); background: transparent; color: rgba(255,255,255,.8); border-radius: 4px; font-size: 14px; cursor: pointer; font-family: inherit; transition: .2s; }
.tab-btn.active, .tab-btn:hover { background: var(--white); color: var(--green); border-color: var(--white); }
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { background: var(--white); border-radius: 8px; overflow: hidden; transition: .3s; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-img { height: 180px; background-size: cover; background-position: center; background-color: var(--gray-200); }
.product-body { padding: 20px; }
.product-body h3 { font-size: 1rem; color: var(--dark); margin-bottom: 8px; }
.product-body p { font-size: 13px; color: var(--gray-500); margin-bottom: 12px; }
.product-link { color: var(--green); font-size: 13px; font-weight: 500; }

/* CTA */
.cta-banner { background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%); padding: 48px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-text h3 { color: var(--white); font-size: 1.5rem; margin-bottom: 8px; }
.cta-text h3 strong { color: var(--gold); font-size: 2rem; }
.cta-text p { color: rgba(255,255,255,.85); }
.cta-text a { color: var(--gold); font-weight: 700; font-size: 1.25rem; }

/* 关于 */
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-intro h2 { font-size: 1.75rem; color: var(--dark); margin: 12px 0 16px; }
.about-text-wrap { margin-bottom: 24px; position: relative; }
.about-text-content {
  color: var(--gray-500); line-height: 1.75; margin: 0;
  transition: opacity 0.25s ease;
}
.about-text-wrap.can-expand:not(.is-expanded) .about-text-content {
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.about-text-wrap.can-expand:not(.is-expanded)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 36px;
  height: 52px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), var(--white));
  pointer-events: none;
}
.about-text-wrap.is-expanded .about-text-content {
  display: block;
  -webkit-line-clamp: unset;
}
.about-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 8px 0;
  min-height: 44px;
  border: none;
  background: none;
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  -webkit-tap-highlight-color: rgba(26, 122, 76, 0.12);
}
.about-expand-btn.hidden { display: none; }
.about-expand-icon { transition: transform 0.25s ease; flex-shrink: 0; }
.about-text-wrap.is-expanded .about-expand-icon { transform: rotate(180deg); }
.about-stats { display: flex; gap: 32px; }
.about-stats div { text-align: center; }
.about-stats strong { display: block; font-size: 2rem; color: var(--green); }
.about-stats span { font-size: 13px; color: var(--gray-500); }
.reasons-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.reason-card { background: var(--green-pale); padding: 20px; border-radius: 8px; border-left: 3px solid var(--green); }
.reason-num { font-size: 1.5rem; font-weight: 700; color: var(--green); opacity: .5; margin-bottom: 8px; }
.reason-card h4 { font-size: 15px; color: var(--dark); margin-bottom: 6px; }
.reason-card p { font-size: 13px; color: var(--gray-500); }

/* 案例 */
.cases-section { background: var(--gray-100); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: var(--white); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow); transition: .3s; }
.case-card:hover { transform: translateY(-4px); }
.case-img { height: 220px; background-size: cover; background-position: center; }
.case-body { padding: 20px; }
.case-tag { display: inline-block; font-size: 12px; color: var(--green); background: var(--green-pale); padding: 2px 10px; border-radius: 20px; margin-bottom: 8px; }
.case-body h3 { font-size: 1rem; color: var(--dark); margin-bottom: 6px; }
.case-body p { font-size: 13px; color: var(--gray-500); }

/* 新闻 */
.news-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.news-section .section-head { position: relative; }
.section-more-link { position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 14px; color: var(--green); font-weight: 500; }
.section-more-link:hover { text-decoration: underline; }

/* 新闻滚动条 */
.news-ticker-wrap {
  display: flex; align-items: center; gap: 12px;
  background: linear-gradient(90deg, rgba(46,125,50,.08), rgba(46,125,50,.02));
  border: 1px solid rgba(46,125,50,.15);
  border-radius: 8px; padding: 10px 16px; margin-bottom: 24px; overflow: hidden;
}
.news-ticker-wrap.hidden { display: none; }
.news-ticker-label {
  flex-shrink: 0; font-size: 12px; font-weight: 700; color: #fff;
  background: var(--green); padding: 4px 10px; border-radius: 4px;
}
.news-ticker-viewport { flex: 1; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.news-ticker-track {
  display: flex; gap: 48px; width: max-content;
  animation: newsTickerScroll 40s linear infinite;
}
.news-ticker-wrap:hover .news-ticker-track { animation-play-state: paused; }
.news-ticker-item {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  font-size: 14px; color: var(--gray-700);
}
.news-ticker-item a { color: inherit; }
.news-ticker-item a:hover { color: var(--green); }
.news-ticker-item time { font-size: 12px; color: var(--gray-500); }
.news-ticker-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--green); opacity: .6; }
@keyframes newsTickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.news-col { background: var(--gray-100); border-radius: 8px; padding: 24px; }
.news-col-head { border-bottom: 2px solid var(--green); padding-bottom: 12px; margin-bottom: 16px; display: flex; justify-content: space-between; align-items: center; }
.news-col-head h3 { font-size: 1.125rem; color: var(--dark); margin: 0; }
.news-more { font-size: 13px; color: var(--green); font-weight: 500; white-space: nowrap; }
.news-more:hover { text-decoration: underline; }
.news-list li { padding: 12px 0; border-bottom: 1px dashed var(--gray-200); display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.news-list li:last-child { border-bottom: none; }
.news-list a { font-size: 14px; color: var(--gray-700); flex: 1; line-height: 1.5; }
.news-list a:hover { color: var(--green); }
.news-list time { font-size: 12px; color: var(--gray-500); white-space: nowrap; flex-shrink: 0; }
.news-list-scroll { max-height: 360px; overflow-y: auto; padding-right: 4px; }
.news-list-scroll::-webkit-scrollbar { width: 4px; }
.news-list-scroll::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }

/* 新闻列表页 — 简洁单列，篇篇独立 */
.news-list-body { background: var(--white); }
.news-list-main { padding: 0 0 72px; min-height: 60vh; }
.news-list-wrap { max-width: 900px; padding-top: 28px; }

.news-page-header { padding-bottom: 28px; border-bottom: 1px solid var(--gray-200); }
.news-breadcrumb-light { font-size: 13px; color: var(--gray-500); margin-bottom: 14px; }
.news-breadcrumb-light a { color: var(--gray-700); }
.news-breadcrumb-light a:hover { color: var(--green); }
.news-page-header h1 {
  font-size: clamp(1.6rem, 3vw, 2rem); color: var(--dark); font-weight: 700; margin-bottom: 8px;
}
.news-page-header h1::after {
  content: ''; display: block; width: 40px; height: 3px; background: var(--green); margin-top: 12px; border-radius: 2px;
}
.news-page-desc { font-size: 14px; color: var(--gray-500); line-height: 1.6; }

.news-filter-bar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 18px 0; border-bottom: 1px solid var(--gray-200);
  position: sticky; top: calc(var(--header-h) + var(--topbar-h)); background: var(--white); z-index: 20;
}
.news-list-tabs { display: flex; gap: 24px; flex-wrap: wrap; }
.news-list-tab {
  padding: 6px 0; border: none; background: none; font-size: 15px; cursor: pointer;
  font-family: inherit; color: var(--gray-500); border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: color .2s, border-color .2s;
}
.news-list-tab:hover { color: var(--green); }
.news-list-tab.active { color: var(--green); border-bottom-color: var(--green); font-weight: 600; }
.news-list-count { font-size: 13px; color: var(--gray-500); }

.news-feed { display: flex; flex-direction: column; gap: 16px; padding-top: 24px; }
.news-feed-item {
  border: 1px solid var(--gray-200); border-radius: 10px; background: var(--white);
  overflow: hidden; transition: border-color .25s, box-shadow .25s;
}
.news-feed-item:hover {
  border-color: rgba(26,122,76,.4);
  box-shadow: 0 6px 20px rgba(26,122,76,.07);
}
.news-feed-link { display: flex; align-items: stretch; color: inherit; min-height: 148px; }
.news-feed-cover {
  width: 220px; flex-shrink: 0; background: var(--gray-100); overflow: hidden;
}
.news-feed-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-feed-item:hover .news-feed-cover img { transform: scale(1.04); }
.news-feed-cover-empty {
  width: 100%; height: 100%; min-height: 148px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, var(--green-pale), #dceee4);
}
.news-feed-cover-empty span { font-size: 13px; color: var(--green); font-weight: 600; letter-spacing: 2px; opacity: .7; }
.news-feed-body { flex: 1; padding: 22px 26px; display: flex; flex-direction: column; min-width: 0; }
.news-feed-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; font-size: 13px; color: var(--gray-500); }
.news-feed-cat { color: var(--green); font-weight: 600; }
.news-feed-meta time::before { content: '·'; margin-right: 10px; color: var(--gray-200); }
.news-feed-title {
  font-size: 1.1rem; color: var(--dark); line-height: 1.55; font-weight: 600; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-feed-item:hover .news-feed-title { color: var(--green-dark); }
.news-feed-excerpt {
  font-size: 14px; color: var(--gray-500); line-height: 1.75; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-feed-more { margin-top: 12px; font-size: 13px; color: var(--green); font-weight: 600; }
.news-feed-item:hover .news-feed-more { color: var(--green-dark); }

.news-feed-skeleton { display: flex; flex-direction: column; gap: 16px; }
.news-skeleton-row {
  height: 148px; border-radius: 10px; border: 1px solid var(--gray-200);
  background: linear-gradient(90deg, #eef4f1 25%, #f8fbf9 50%, #eef4f1 75%);
  background-size: 200% 100%; animation: news-shimmer 1.2s infinite;
}

/* 新闻卡片网格（详情页相关阅读等复用） */
.news-cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-grid-card {
  background: var(--white); border-radius: 10px; overflow: hidden; box-shadow: var(--shadow); transition: .3s;
}
.news-grid-card:hover { transform: translateY(-5px); box-shadow: 0 14px 36px rgba(26,122,76,.14); }
.news-grid-card-link { display: block; color: inherit; height: 100%; }
.news-grid-card-img { height: 200px; overflow: hidden; background: linear-gradient(145deg, var(--green-pale), var(--gray-200)); position: relative; }
.news-grid-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-grid-card:hover .news-grid-card-img img { transform: scale(1.06); }
.news-grid-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--green-pale) 0%, #d4ebe0 100%);
}
.news-grid-card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.news-card-tag {
  display: inline-block; font-size: 12px; color: var(--green); background: var(--green-pale);
  padding: 3px 10px; border-radius: 20px; font-weight: 600; width: fit-content;
}
.news-grid-card-body h3 {
  font-size: 1.05rem; color: var(--dark); margin: 10px 0 8px; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-grid-summary {
  font-size: 14px; color: var(--gray-500); line-height: 1.7; margin-bottom: 14px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  font-size: 13px; color: var(--gray-500); padding-top: 12px; border-top: 1px solid var(--gray-200);
}
.news-read-more { color: var(--green); font-weight: 600; font-size: 13px; white-space: nowrap; transition: .2s; }
.news-grid-card:hover .news-read-more { color: var(--green-dark); }

.news-pagination { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 40px; }
.news-page-btn {
  min-width: 40px; height: 40px; padding: 0 14px; border: 1px solid var(--gray-200); border-radius: 8px;
  background: var(--white); color: var(--gray-700); font-size: 14px; cursor: pointer; font-family: inherit; transition: .2s;
}
.news-page-btn:hover { border-color: var(--green); color: var(--green); }
.news-page-btn.active { background: var(--green); border-color: var(--green); color: var(--white); }
.news-page-ellipsis { padding: 0 4px; color: var(--gray-500); }

.news-empty {
  text-align: center; padding: 64px 24px; border: 1px dashed var(--gray-200); border-radius: 10px;
}
.news-empty p { color: var(--gray-500); margin-bottom: 20px; font-size: 15px; }

@keyframes news-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.main-nav a.active { color: var(--green); }
.main-nav a.active::after { width: 100%; }

/* 新闻列表页旧 hero 面包屑（详情页复用） */
.news-list-hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 55%, #248f5a 100%);
  padding: 108px 0 52px; color: var(--white);
}
.news-breadcrumb { font-size: 13px; margin-bottom: 18px; color: rgba(255,255,255,.75); }
.news-breadcrumb a { color: rgba(255,255,255,.9); }
.news-breadcrumb a:hover { color: var(--white); }
.news-breadcrumb-sep { margin: 0 8px; opacity: .5; }

/* 联系 */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-list li { padding: 12px 0; border-bottom: 1px solid var(--gray-200); }
.contact-list strong { display: block; font-size: 13px; color: var(--gray-500); margin-bottom: 4px; }
.contact-form { background: var(--gray-100); padding: 32px; border-radius: 8px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--gray-700); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 14px; border: 1px solid var(--gray-200); border-radius: 4px;
  font-family: inherit; font-size: 14px; background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(26,122,76,.1);
}

/* 页脚 */
.footer { background: var(--dark); color: rgba(255,255,255,.65); padding: 48px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 32px; }
.footer-logo .logo-text { color: var(--white); }
.footer-about-wrap { margin-top: 12px; }
.footer-about-wrap .about-text-content {
  color: rgba(255, 255, 255, .65);
  font-size: 14px;
  line-height: 1.8;
}
.footer-about-wrap.can-expand:not(.is-expanded)::after {
  background: linear-gradient(to bottom, rgba(26, 46, 36, 0), var(--dark));
}
.footer-expand-btn { color: var(--green-light); }
.footer-col h4 { color: var(--white); font-size: 15px; margin-bottom: 16px; }
.footer-col a, .footer-col span { display: block; font-size: 13px; margin-bottom: 8px; color: rgba(255,255,255,.55); }
.footer-col a:hover { color: var(--green-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; text-align: center; font-size: 13px; }

/* 浮动电话 */
.float-phone {
  position: fixed; right: 24px; bottom: 92px; width: 52px; height: 52px;
  background: var(--green); color: var(--white); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  box-shadow: 0 4px 16px rgba(26,122,76,.4); z-index: 999; transition: .2s;
}
.float-phone:hover { background: var(--green-dark); transform: scale(1.08); }

.empty-msg { text-align: center; padding: 40px; color: var(--gray-500); grid-column: 1/-1; }

/* 响应式 */
@media (max-width: 992px) {
  .solutions-grid, .products-grid, .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout, .contact-layout, .news-layout { grid-template-columns: 1fr; }
  .section-more-link { position: static; transform: none; display: inline-block; margin-top: 12px; }
  .news-cards-grid { grid-template-columns: repeat(2, 1fr); }
  .news-feed-link { flex-direction: column; min-height: 0; }
  .news-feed-cover { width: 100%; height: 180px; }
  .news-feed-cover-empty { min-height: 180px; }
  .news-related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root {
    --header-h: 58px;
    --topbar-h: 36px;
  }
  html { scroll-padding-top: calc(var(--header-h) + var(--topbar-h) + 8px); }
  body.nav-open { overflow: hidden; }
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 1.5rem; }

  /* 顶部：双栏 sticky，避免菜单错位 */
  .topbar {
    position: sticky;
    top: 0;
    z-index: 1002;
    height: var(--topbar-h);
    font-size: 12px;
  }
  .topbar-inner { padding: 0 4px; }
  .topbar-slogan { display: none; }
  .topbar-contact { gap: 4px; }
  .topbar-contact > span:first-child { display: none; }
  .hotline { font-size: 15px; margin-left: 0; }
  .topbar-contact { flex-wrap: wrap; justify-content: flex-end; }

  .header {
    position: sticky;
    top: var(--topbar-h);
    z-index: 1001;
    height: var(--header-h);
  }
  .logo-text { font-size: 17px; }
  .logo-img { height: 36px; }

  .main-nav {
    position: fixed;
    top: calc(var(--header-h) + var(--topbar-h));
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    padding: 8px 16px 24px;
    gap: 0;
    box-shadow: var(--shadow);
    transform: translateX(-105%);
    opacity: 1;
    visibility: visible;
    transition: transform 0.28s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 1000;
  }
  .main-nav.open { transform: translateX(0); }
  body.nav-open::before {
    content: '';
    position: fixed;
    inset: 0;
    top: calc(var(--header-h) + var(--topbar-h));
    background: rgba(15, 30, 24, 0.45);
    z-index: 999;
    backdrop-filter: blur(2px);
  }
  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: 8px;
  }
  .nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2) { opacity: 0; }
  .nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-toggle span { transition: 0.2s; }
  .header-cta { display: none; }

  .carousel { height: min(52vh, 380px); }
  .carousel-caption { padding: 0 16px; text-align: center; max-width: 100%; }
  .carousel-overlay { justify-content: center; background: linear-gradient(to top, rgba(15,92,56,.85) 0%, rgba(15,92,56,.35) 55%, transparent 100%); align-items: flex-end; padding-bottom: 48px; }
  .carousel-caption h1 { font-size: 1.25rem; margin-bottom: 8px; }
  .carousel-caption p { font-size: 13px; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .carousel-btn { width: 36px; height: 36px; font-size: 22px; }
  .carousel-btn.prev { left: 8px; }
  .carousel-btn.next { right: 8px; }

  .solutions-grid, .products-grid, .cases-grid { grid-template-columns: 1fr; }
  .category-tabs { gap: 6px; margin-bottom: 24px; }
  .category-tabs button, .tab-btn {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 40px;
  }

  .about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }
  .about-text-wrap.can-expand:not(.is-expanded) .about-text-content { -webkit-line-clamp: 4; }
  .about-text-wrap.can-expand:not(.is-expanded)::after { bottom: 40px; height: 44px; }
  .footer-about-wrap.can-expand:not(.is-expanded) .about-text-content { -webkit-line-clamp: 3; }
  .footer-about-wrap.can-expand:not(.is-expanded)::after { bottom: 40px; height: 40px; }
  .about-stats strong { font-size: 1.5rem; }
  .about-stats span { font-size: 11px; }

  .cta-inner { flex-direction: column; text-align: center; gap: 16px; }
  .cta-text h3 { font-size: 1.05rem; line-height: 1.5; }
  .reasons-grid { grid-template-columns: 1fr; }

  .news-layout { grid-template-columns: 1fr; gap: 20px; }
  .news-col { padding: 18px; }
  .news-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .news-list time { white-space: normal; }
  .news-ticker-wrap { flex-direction: column; align-items: stretch; gap: 8px; padding: 10px 12px; }
  .news-ticker-viewport { mask-image: none; }

  .news-cards-grid { grid-template-columns: 1fr; }
  .news-feed-link { flex-direction: column; min-height: 0; }
  .news-feed-cover { width: 100%; height: 180px; }
  .news-feed-cover-empty { min-height: 160px; }
  .news-feed-body { padding: 16px; }
  .news-filter-bar {
    top: calc(var(--header-h) + var(--topbar-h));
    flex-direction: column;
    align-items: stretch;
    padding: 14px 0;
  }
  .news-list-tabs { gap: 16px; }
  .news-list-count { align-self: flex-start; }
  .news-related-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }
  .footer { padding: 36px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .detail-page { padding: 96px 0 56px; }
  .detail-article h1, .detail-product h1 { font-size: 1.45rem; }

  .btn, .btn-lg { min-height: 44px; }
  .float-phone {
    width: 52px;
    height: 52px;
    right: 16px;
    bottom: 88px;
    font-size: 22px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .about-stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .about-stats strong { font-size: 1.25rem; }
  .carousel-caption .btn { width: 100%; }
  .news-page-header h1 { font-size: 1.4rem; }
  .faq-card summary { padding: 14px 36px 14px 16px; font-size: 14px; }
  .faq-card p { padding: 0 16px 14px; font-size: 13px; }
  .hotline { font-size: 14px; }
  .logo-text { font-size: 17px; }
  .form-group input,
  .form-group select,
  .form-group textarea,
  .contact-form input,
  .contact-form textarea {
    font-size: 16px;
  }
  body { padding-bottom: env(safe-area-inset-bottom, 0px); }
}

.hidden { display: none !important; }
.logo-img { height: 44px; width: auto; }
.header.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,.08); }
.about-visual img { width: 100%; border-radius: 8px; box-shadow: var(--shadow); margin-bottom: 20px; }
.wechat-box { margin-top: 24px; padding: 16px; background: var(--gray-100); border-radius: 8px; text-align: center; }
.wechat-box img { width: 140px; margin: 12px auto 0; border-radius: 4px; }
.case-card { cursor: pointer; }
.case-card:hover { transform: translateY(-4px); }
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); z-index: 3000; display: flex; align-items: center; justify-content: center; padding: 20px; }
.lightbox img { max-width: 90vw; max-height: 85vh; border-radius: 8px; }
.lightbox-close { position: absolute; top: 20px; right: 24px; background: none; border: none; color: #fff; font-size: 36px; cursor: pointer; }
.detail-page { padding: 120px 0 80px; min-height: 60vh; }
.detail-article, .detail-product { max-width: 860px; }
.detail-tag { display: inline-block; background: var(--green-pale); color: var(--green); padding: 4px 12px; border-radius: 4px; font-size: 13px; margin-bottom: 12px; }
.detail-article h1, .detail-product h1 { font-size: 2rem; color: var(--dark); margin-bottom: 12px; }
.detail-date { color: var(--gray-500); font-size: 14px; display: block; margin-bottom: 24px; }
.detail-hero { width: 100%; border-radius: 8px; margin-bottom: 24px; }
.detail-content { line-height: 1.9; margin-bottom: 32px; }
.detail-content p { margin-bottom: 16px; }

/* 新闻详情页 */
.news-detail-body { background: var(--gray-100); }
.news-detail-hero {
  position: relative; padding: 108px 0 72px; color: var(--white); overflow: hidden;
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 55%, #248f5a 100%);
}
.news-detail-hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(255,255,255,.12) 0%, transparent 55%);
  pointer-events: none;
}
.news-detail-hero.has-cover::after {
  content: ''; position: absolute; inset: 0;
  background-image: var(--hero-image);
  background-size: cover; background-position: center;
  opacity: .18; filter: blur(2px); transform: scale(1.05);
  pointer-events: none;
}
.news-detail-hero-inner { position: relative; z-index: 1; max-width: 820px; }
.news-detail-hero-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 16px; }
.news-detail-hero-tag { background: rgba(255,255,255,.18); color: var(--white); backdrop-filter: blur(4px); }
.news-detail-hero-date {
  display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: rgba(255,255,255,.88);
}
.news-detail-title {
  font-size: clamp(1.6rem, 3.5vw, 2.35rem); color: var(--white); line-height: 1.4;
  font-weight: 700; margin-bottom: 14px;
}
.news-detail-lead {
  font-size: 16px; line-height: 1.75; color: rgba(255,255,255,.88); max-width: 720px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}

.news-detail-main { padding: 0 0 80px; margin-top: -20px; position: relative; z-index: 2; }
.news-detail-layout {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.news-detail-card {
  order: 1;
  background: var(--white); border-radius: 14px; box-shadow: 0 8px 32px rgba(26,46,36,.08);
  padding: 22px 16px; overflow: hidden;
}
.news-detail-cover { margin: -22px -16px 20px; overflow: hidden; }
.news-detail-cover img { width: 100%; max-height: 420px; object-fit: cover; display: block; }
.news-detail-content {
  font-size: 16px; line-height: 2; color: var(--gray-700);
}
.news-detail-content p { margin-bottom: 1.25em; text-align: justify; }
.news-detail-content p:first-child {
  font-size: 17px; color: var(--dark);
}
.news-detail-empty-text { color: var(--gray-500); font-style: italic; }
.news-detail-footer {
  margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--gray-200);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.news-detail-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.news-detail-aside {
  order: 2;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: static;
  top: auto;
}
.news-aside-card {
  background: var(--white); border-radius: 12px; padding: 22px; box-shadow: var(--shadow);
}
.news-aside-card h3 { font-size: 1.05rem; color: var(--dark); margin-bottom: 10px; }
.news-aside-card h4 { font-size: 14px; color: var(--dark); margin-bottom: 12px; }
.news-aside-card p { font-size: 13px; color: var(--gray-500); line-height: 1.7; margin-bottom: 14px; }
.news-aside-cta { background: linear-gradient(160deg, var(--green-dark), var(--green)); color: var(--white); }
.news-aside-cta h3, .news-aside-cta p { color: rgba(255,255,255,.92); }
.news-aside-hotline {
  display: block; font-size: 1.35rem; font-weight: 700; color: var(--gold);
  margin-bottom: 14px; letter-spacing: .5px;
}
.news-aside-hotline:hover { color: #e8c84a; }
.news-aside-link {
  display: block; padding: 10px 0; font-size: 14px; color: var(--gray-700);
  border-bottom: 1px dashed var(--gray-200);
}
.news-aside-link:last-child { border-bottom: none; padding-bottom: 0; }
.news-aside-link:hover { color: var(--green); }

.news-related { margin-top: 48px; }
.news-related-head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px;
}
.news-related-head h2 { font-size: 1.35rem; color: var(--dark); }
.news-related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.news-detail-skeleton { padding: 8px 0; }
.skeleton-block {
  background: linear-gradient(90deg, #e8f0ec 25%, #f4f8f6 50%, #e8f0ec 75%);
  background-size: 200% 100%; animation: news-shimmer 1.2s infinite; border-radius: 8px;
}
.skeleton-img { height: 240px; margin-bottom: 24px; border-radius: 10px; }
.skeleton-line { height: 16px; margin-bottom: 14px; }
.skeleton-line.lg { height: 22px; width: 70%; margin-bottom: 20px; }
.skeleton-line.short { width: 45%; }
.news-detail-error { text-align: center; padding: 48px 24px; }

/* 新闻详情/列表响应式 — 桌面端扩展布局 */
@media (min-width: 993px) {
  .news-detail-main { margin-top: -36px; }
  .news-detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    align-items: start;
  }
  .news-detail-card {
    order: unset;
    padding: 36px 40px;
  }
  .news-detail-cover { margin: -36px -40px 32px; }
  .news-detail-aside {
    order: unset;
    gap: 16px;
    position: sticky;
    top: calc(var(--header-h) + var(--topbar-h) + 16px);
  }
  .news-detail-hero.has-cover ~ .news-detail-main .news-detail-cover { display: block; }
}
@media (max-width: 992px) {
  .news-related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .news-list-main { padding-top: 8px; }
  .news-list-wrap {
    padding-top: 16px;
    padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  }
  .news-detail-body { overflow-x: hidden; }
  .news-detail-hero {
    padding: calc(var(--header-h) + var(--topbar-h) + 20px) 0 40px;
  }
  .news-detail-hero.has-cover ~ .news-detail-main .news-detail-cover { display: none; }
  .news-detail-lead {
    -webkit-line-clamp: unset;
    display: block;
    overflow: visible;
  }
  .news-detail-title { font-size: clamp(1.25rem, 5vw, 1.65rem); word-break: break-word; }
  .news-detail-content { font-size: 15px; line-height: 1.85; word-break: break-word; }
  .news-detail-content p { text-align: left; }
  .news-detail-footer { flex-direction: column; align-items: stretch; }
  .news-detail-actions { width: 100%; flex-direction: column; }
  .news-detail-actions .btn { width: 100%; text-align: center; justify-content: center; }
  .news-breadcrumb {
    font-size: 12px;
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    line-height: 1.6;
    word-break: break-all;
  }
  .news-related-grid { grid-template-columns: 1fr; }
  .news-feed-item { position: relative; isolation: isolate; }
  .news-feed-link {
    flex-direction: column;
    min-height: 0;
    position: relative;
    z-index: 1;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(26, 122, 76, 0.12);
  }
  .news-feed-body { width: 100%; }
  .news-feed-more {
    display: inline-flex;
    align-items: center;
    padding: 10px 0;
    min-height: 44px;
    line-height: 1.4;
    margin-top: auto;
  }
}
@media (max-width: 480px) {
  .news-aside-cta .btn-block { width: 100%; }
}

.detail-product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.detail-product-img { aspect-ratio: 1; background-size: cover; background-position: center; border-radius: 8px; background-color: var(--gray-100); }
.detail-desc { margin: 16px 0 24px; color: var(--gray-500); }
.spec-list { list-style: none; margin-bottom: 24px; }
.spec-list li { padding: 10px 0; border-bottom: 1px solid var(--gray-200); }
.spec-list li::before { content: '✓ '; color: var(--green); font-weight: 700; }
.product-badge { display: inline-block; background: var(--gold); color: #fff; padding: 2px 10px; border-radius: 4px; font-size: 12px; margin-right: 8px; }
.detail-loading, .empty-msg { color: var(--gray-500); text-align: center; padding: 40px; }

/* GEO 服务城市 */
.geo-section { background: linear-gradient(180deg, var(--white) 0%, var(--green-pale) 100%); }
.geo-brand-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: start;
  padding: 28px;
  margin-bottom: 24px;
  background: var(--white);
  border-radius: 16px;
  border: 1px solid var(--gray-200);
  box-shadow: 0 8px 32px rgba(26, 122, 76, 0.08);
}
.geo-brand-main { display: flex; gap: 20px; align-items: flex-start; min-width: 0; }
.geo-brand-mark {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--green), var(--green-dark));
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 2px;
}
.geo-brand-title { font-size: 1.2rem; color: var(--dark); margin-bottom: 6px; line-height: 1.4; }
.geo-brand-slogan { font-size: 14px; color: var(--green); font-weight: 600; margin-bottom: 10px; }
.geo-brand-intro { font-size: 14px; color: var(--gray-500); line-height: 1.75; margin-bottom: 14px; }
.geo-brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.geo-brand-tags li {
  font-size: 12px;
  color: var(--green-dark);
  background: var(--green-pale);
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 500;
}
.geo-brand-aside { display: flex; flex-direction: column; align-items: flex-end; gap: 14px; flex-shrink: 0; }
.geo-brand-stats { display: flex; gap: 20px; }
.geo-stat { text-align: center; min-width: 64px; }
.geo-stat strong { display: block; font-size: 1.5rem; color: var(--green); line-height: 1.2; }
.geo-stat span { font-size: 12px; color: var(--gray-500); white-space: nowrap; }
.geo-brand-hotline {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--green-dark);
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--green-pale);
  border: 1px solid rgba(26, 122, 76, 0.2);
}
.geo-brand-hotline:hover { background: var(--green); color: var(--white); }
.geo-locate-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 14px 18px;
  margin-bottom: 20px;
  background: linear-gradient(90deg, rgba(26, 122, 76, 0.1), rgba(26, 122, 76, 0.04));
  border: 1px solid rgba(26, 122, 76, 0.22);
  border-radius: 10px;
  font-size: 14px;
  color: var(--dark);
}
.geo-locate-icon { font-size: 16px; }
.geo-locate-text { flex: 1; min-width: 0; }
.geo-locate-link { color: var(--green); font-weight: 600; white-space: nowrap; }
.geo-locate-link:hover { color: var(--green-dark); }
.geo-cities-outer { position: relative; }
.geo-cities-wrap {
  position: relative;
}
.geo-cities-wrap.can-expand:not(.is-expanded) {
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.geo-cities-wrap.can-expand:not(.is-expanded)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 72px;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, var(--white) 85%);
  pointer-events: none;
}
.geo-cities-wrap.is-expanded::after { display: none; }
.geo-cities-expand-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 16px;
  padding: 12px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: .2s;
}
.geo-cities-expand-btn:hover {
  border-color: var(--green-light);
  background: #f6fcf9;
}
.geo-cities-expand-icon {
  font-size: 11px;
  transition: transform .25s;
}
.geo-cities-outer.is-expanded .geo-cities-expand-icon { transform: rotate(180deg); }
.geo-cities-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.geo-city-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 20px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--gray-200);
  box-shadow: 0 2px 12px rgba(26,122,76,.06);
  transition: .25s;
  color: inherit;
}
.geo-city-card:hover { transform: translateY(-4px); border-color: var(--green-light); box-shadow: 0 8px 28px rgba(26,122,76,.15); }
.geo-city-card.is-located {
  border-color: var(--green);
  box-shadow: 0 8px 28px rgba(26,122,76,.18);
  background: linear-gradient(180deg, #f6fcf9 0%, var(--white) 100%);
}
.geo-city-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--white);
  background: var(--green);
  padding: 3px 8px;
  border-radius: 20px;
}
.geo-city-province { font-size: 12px; color: var(--gray-500); letter-spacing: 1px; }
.geo-city-name { font-size: 1.25rem; color: var(--dark); }
.geo-city-scene {
  font-size: 12px;
  color: var(--gray-500);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.4em;
}
.geo-city-link { font-size: 13px; color: var(--green); font-weight: 500; margin-top: 4px; }

/* FAQ — GEO 优化 */
.faq-section { background: var(--gray-100); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 960px; margin: 0 auto; }
.faq-card { background: var(--white); border-radius: 8px; padding: 0; box-shadow: var(--shadow); overflow: hidden; }
.faq-card summary { padding: 18px 20px; font-weight: 600; color: var(--dark); cursor: pointer; list-style: none; position: relative; padding-right: 36px; }
.faq-card summary::-webkit-details-marker { display: none; }
.faq-card summary::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--green); font-size: 20px; font-weight: 400; }
.faq-card[open] summary::after { content: '−'; }
.faq-card summary:hover { color: var(--green); }
.faq-card p { padding: 0 20px 18px; font-size: 14px; color: var(--gray-500); line-height: 1.8; }

@media (max-width: 768px) {
  .geo-brand-panel { grid-template-columns: 1fr; gap: 20px; padding: 20px 16px; }
  .geo-brand-main { flex-direction: column; gap: 14px; }
  .geo-brand-aside { align-items: stretch; width: 100%; }
  .geo-brand-stats { justify-content: space-around; width: 100%; }
  .geo-brand-hotline { text-align: center; }
  .geo-locate-bar { padding: 12px 14px; font-size: 13px; }
  .geo-cities-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: 1fr; }
  .detail-product-grid { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; }
}