/* ============================================================
   Liyu AI Site Framework — 前台样式
   颜色全部走 CSS 变量，由后台「主题配色」写入 <style> 覆盖。
   仅使用原生 CSS，无构建步骤、无外部字体与图标请求。
   ============================================================ */

*,
*::before,
*::after { box-sizing: border-box; }

/* hidden 属性优先于任何 display 声明（与后台样式保持一致的安全网） */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary, #111827);
  background: var(--background, #F8F6F2);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }

a { color: var(--accent, #C97B63); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }

p { margin: 0 0 1em; }

ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .4em; }

strong { font-weight: 700; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; background: #fff; color: #000;
  padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 图标 ---------- */
.icon { width: 20px; height: 20px; flex: 0 0 auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none;
  transition: background .18s, color .18s, border-color .18s, transform .18s;
  line-height: 1.2;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn .icon { width: 18px; height: 18px; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }

.btn-primary { background: var(--primary, #1F2937); color: #fff; }
.btn-primary:hover { background: #111827; }
.btn-light { background: #fff; color: var(--primary, #1F2937); }
.btn-light:hover { background: #f3f4f6; }
.btn-outline { background: transparent; color: var(--primary, #1F2937); border-color: var(--border, #E5E7EB); }
.btn-outline:hover { border-color: var(--primary, #1F2937); }
.btn-ghost-light { background: rgba(255,255,255,.12); color: inherit; border-color: rgba(255,255,255,.35); }
.btn-ghost-light:hover { background: rgba(255,255,255,.2); }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border, #E5E7EB);
}
.header-inner { display: flex; align-items: center; gap: 24px; min-height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text-primary); }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent); display: flex; }
.brand-mark .icon { width: 28px; height: 28px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 17px; }
.brand-text small { font-size: 12px; color: var(--text-secondary); }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.site-nav li { margin: 0; }
.nav-link {
  display: block; padding: 8px 14px; border-radius: 999px;
  color: var(--text-primary); font-size: 15px; font-weight: 500;
}
.nav-link:hover { background: var(--background); text-decoration: none; }
.nav-link.is-active { background: var(--primary); color: #fff; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 13px; color: var(--text-secondary);
}
.lang-switch:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

/* ---------- 首屏 ---------- */
.hero { position: relative; display: flex; align-items: center; min-height: 78vh; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg--plain {
  background:
    radial-gradient(1200px 600px at 15% 20%, rgba(201,123,99,.30), transparent 60%),
    linear-gradient(135deg, #1F2937 0%, #374151 55%, #1F2937 100%);
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.85) 0%, rgba(0,0,0,.45) 55%, rgba(0,0,0,.1) 100%);
}
.hero-inner { position: relative; z-index: 1; padding: 96px 24px; color: #fff; max-width: 1180px; }
.hero-bg--plain ~ .hero-inner { color: #fff; }
.hero-badge {
  display: inline-block; margin: 0 0 20px; padding: 8px 18px; border-radius: 999px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.24);
  font-size: 13px; font-weight: 500; letter-spacing: .04em;
}
.hero-title { font-size: clamp(30px, 5vw, 56px); max-width: 20ch; margin-bottom: 20px; }
.hero-subtitle { font-size: clamp(16px, 1.6vw, 19px); max-width: 62ch; opacity: .92; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 0; }

/* ---------- 通用区块 ---------- */
.section { padding: 84px 0; }
.section-highlights { padding: 56px 0; background: #fff; border-bottom: 1px solid var(--border); }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head.is-center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  margin: 0 0 10px; font-size: 13px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
}
.section-title { font-size: clamp(24px, 3vw, 36px); margin-bottom: 12px; }
.section-title.is-small { font-size: 20px; margin-bottom: 18px; }
.section-subtitle { color: var(--text-secondary); font-size: 16px; margin: 0; }
.sub-title { font-size: 19px; margin-top: 32px; margin-bottom: 14px; }
.section-foot { text-align: center; margin-top: 40px; margin-bottom: 0; }
.section-foot.is-left { text-align: left; }

/* ---------- 核心信息清单 ---------- */
.fact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.fact-list li {
  position: relative; padding: 16px 18px 16px 44px; margin: 0;
  background: var(--background); border-radius: 12px; font-size: 15px;
}
.fact-list li::before {
  content: ""; position: absolute; left: 18px; top: 22px;
  width: 10px; height: 10px; border-radius: 3px; background: var(--accent);
}

/* ---------- 分栏 ---------- */
.split { display: grid; gap: 56px; align-items: start; }
.split-2 { grid-template-columns: 1.25fr .95fr; }
.split-5 { grid-template-columns: 1.3fr .9fr; }
.split-main { min-width: 0; }
.split-aside { min-width: 0; }

.media-frame { border-radius: 20px; overflow: hidden; background: var(--background); box-shadow: 0 18px 40px -22px rgba(17,24,39,.35); }
.media-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.thumb-list { display: flex; gap: 10px; list-style: none; padding: 0; margin: 12px 0 0; }
.thumb-list li { margin: 0; }
.thumb-img { width: 84px; height: 64px; object-fit: cover; border-radius: 8px; }

.prose { color: var(--text-secondary); font-size: 16px; }

.badge-card {
  display: flex; align-items: center; gap: 14px; margin: 18px 0 0;
  padding: 16px 20px; background: #fff; border-radius: 16px;
  box-shadow: 0 14px 32px -20px rgba(17,24,39,.4);
}
.badge-card .icon { color: var(--accent); width: 26px; height: 26px; }
.badge-card span { display: flex; flex-direction: column; line-height: 1.4; }
.badge-card em { font-style: normal; font-size: 13px; color: var(--text-secondary); }

/* ---------- 数据统计 ---------- */
.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px; margin: 32px 0 0; padding: 0;
}
.stat { margin: 0; padding: 20px; background: var(--background); border-radius: 14px; }
.stat dt { font-size: 13px; color: var(--text-secondary); order: 2; }
.stat dd { order: 1; margin: 0 0 4px; font-size: 28px; font-weight: 700; color: var(--primary); }
.stat { display: flex; flex-direction: column; }

/* ---------- 卡片网格 ---------- */
.card-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 26px; }
/* 宽屏固定 3 列（产品中心、首页产品区块共用）：≥1024px 三列，640–1023px 两列，<640px 单列竖排 */
.card-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1023px) {
  .card-grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 639px) {
  .card-grid-3 { grid-template-columns: minmax(0, 1fr); }
}
/* 分类快捷跳转的落点：避开吸顶导航 */
.card[id^="cat-"] { scroll-margin-top: 96px; }
.card {
  margin: 0; background: #fff; border: 1px solid var(--border);
  border-radius: 18px; overflow: hidden; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 22px 44px -26px rgba(17,24,39,.42); border-color: transparent; }
.card-link { display: block; color: inherit; }
.card-link:hover { text-decoration: none; }
.card-media { background: var(--background); }
.card-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.card-body { padding: 22px; }
.card-tag { margin: 0 0 8px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.card-title { font-size: 18px; margin-bottom: 8px; }
.card-text { color: var(--text-secondary); font-size: 14.5px; margin-bottom: 14px; }
.card-more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }
.card-more .icon { width: 16px; height: 16px; }

.index-title { font-size: 22px; padding-bottom: 12px; border-bottom: 2px solid var(--border); margin-bottom: 26px; }
.product-index .cat-nav ul { margin-bottom: 32px; }

/* ---------- 特色列表 ---------- */
.feature-list { list-style: none; padding: 0; margin: 0 0 24px; }
.feature-list li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; color: var(--text-secondary); }
.feature-list .icon { color: var(--accent); width: 20px; height: 20px; margin-top: 3px; }

/* ---------- 图片网格 ---------- */
.media-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.media-grid li { margin: 0; border-radius: 14px; overflow: hidden; }
.media-grid li.is-wide { grid-column: span 2; }
.media-grid .media-img { aspect-ratio: 4/3; }

/* ---------- 合作伙伴 ---------- */
.partner-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.partner {
  margin: 0; padding: 22px; background: #fff; border: 1px solid var(--border);
  border-radius: 16px; text-align: center;
}
.partner-logo { margin-bottom: 12px; border-radius: 12px; overflow: hidden; }
.partner-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
.partner-name { font-size: 14.5px; margin: 0; color: var(--text-secondary); font-weight: 600; }

/* ---------- 证书 ---------- */
.cert-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.cert { margin: 0; padding: 20px; background: #fff; border: 1px solid var(--border); border-radius: 16px; text-align: center; }
.cert-media { margin-bottom: 14px; }
.cert-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 10px; }
.cert-title { font-size: 16px; margin-bottom: 4px; }
.cert-sub { font-size: 13.5px; color: var(--text-secondary); margin: 0; }

/* ---------- FAQ ---------- */
.faq-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.faq-item {
  margin: 0; padding: 24px 26px; background: #fff;
  border: 1px solid var(--border); border-radius: 16px;
}
.faq-q { display: flex; gap: 12px; align-items: baseline; font-size: 17.5px; margin-bottom: 10px; }
.faq-index {
  flex: 0 0 auto; font-size: 13px; font-weight: 700; color: #fff;
  background: var(--accent); border-radius: 6px; padding: 2px 7px;
}
.faq-cat { margin: 0 0 8px; font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.faq-a { margin: 0 0 10px; color: var(--text-secondary); }
.faq-link { margin: 0; font-size: 14px; }
.faq-group { margin-bottom: 48px; }
.faq-group h2 { font-size: 22px; padding-bottom: 12px; border-bottom: 2px solid var(--border); }

.cat-nav ul { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 0; margin: 0 0 44px; }
.cat-nav a {
  display: inline-block; padding: 8px 18px; border-radius: 999px;
  background: #fff; border: 1px solid var(--border); font-size: 14px; color: var(--text-primary);
}
.cat-nav a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* ---------- CTA ---------- */
.section-dark { background: var(--primary, #1F2937); color: #fff; }
.section-dark .cta-title { color: #fff; }
.cta-inner { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.cta-title { font-size: clamp(24px, 3vw, 34px); margin-bottom: 10px; }
.cta-subtitle { margin: 0; opacity: .85; max-width: 60ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; margin: 0; }
.cta-phone { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; opacity: .9; }

/* ---------- 内页头部 ---------- */
.page-hero { padding: 64px 0 44px; background: #fff; border-bottom: 1px solid var(--border); }
.breadcrumb { margin-bottom: 18px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; font-size: 13.5px; color: var(--text-secondary); }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: var(--border); }
.breadcrumb a { color: var(--text-secondary); }
.page-title { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 12px; }
.page-subtitle { font-size: 17px; color: var(--text-secondary); margin-bottom: 12px; }
.page-lead { max-width: 78ch; color: var(--text-secondary); margin: 0; }
.page-body { padding: 56px 24px 88px; }

.answer-block {
  margin-top: 56px; padding: 28px 32px; background: #fff;
  border: 1px solid var(--border); border-left: 4px solid var(--accent);
  border-radius: 14px;
}
.answer-block h2 { font-size: 20px; }
.answer-block h3 { font-size: 16.5px; margin-top: 18px; }
.answer-block p:last-child { margin-bottom: 0; }

/* ---------- 方案 / 案例 / 资讯 ---------- */
.solution-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 24px; }
.solution { margin: 0; padding: 30px 34px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.solution-head h2 { font-size: 22px; }
.solution-target, .solution-duration { font-size: 14.5px; color: var(--text-secondary); margin: 0 0 6px; }
.solution-body { margin-top: 16px; color: var(--text-secondary); }
.solution-body h3 { font-size: 16px; color: var(--text-primary); margin-bottom: 10px; }

.case-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 26px; }
.case { margin: 0; display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: center; padding: 26px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.case-media { border-radius: 14px; overflow: hidden; }
.case-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.case-meta { font-size: 13px; color: var(--text-secondary); margin: 0 0 8px; }
.case-body h2 { font-size: 20px; }
.case-body p { color: var(--text-secondary); }
.case-result { margin-bottom: 0; }
.case-result strong { color: var(--accent); }

.news-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; }
.news-item { margin: 0; padding: 26px 30px; background: #fff; border: 1px solid var(--border); border-radius: 16px; }
.news-meta { font-size: 13px; color: var(--text-secondary); margin: 0 0 8px; }
.news-item h2 { font-size: 20px; margin-bottom: 8px; }
.news-item h2 a { color: var(--text-primary); }
.news-item h2 a:hover { color: var(--accent); }
.news-item p { color: var(--text-secondary); }
.news-more { margin: 0; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }

.article { max-width: 820px; margin: 0 auto; }
.article-lead { font-size: 17.5px; color: var(--text-secondary); padding: 20px 24px; background: #fff; border-left: 4px solid var(--accent); border-radius: 10px; }
.article-body { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 32px 36px; }
.article-body h3 { font-size: 21px; margin-top: 32px; }
.article-body h4 { font-size: 17.5px; margin-top: 24px; }
.article-body ul, .article-body ol { padding-left: 22px; }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.tag { display: inline-block; padding: 4px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--border); font-size: 12.5px; color: var(--text-secondary); }
.article-foot { margin-top: 28px; }

/* ---------- 关于 / 团队 / 历程 ---------- */
.about-block { margin-top: 56px; }
.about-block > h2 { font-size: 24px; padding-bottom: 12px; border-bottom: 2px solid var(--border); }
.stat-grid-4 { margin-top: 0; }
.team-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.member { margin: 0; padding: 26px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.member-media { margin-bottom: 16px; border-radius: 12px; overflow: hidden; }
.member-img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.member h3 { font-size: 18px; margin-bottom: 2px; }
.member-role { font-size: 13.5px; color: var(--accent); font-weight: 600; margin: 0 0 10px; }
.member p { color: var(--text-secondary); font-size: 14.5px; margin: 0; }

.value-grid { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.value { margin: 0; padding: 26px; background: #fff; border: 1px solid var(--border); border-radius: 18px; }
.value-icon { display: inline-flex; width: 44px; height: 44px; border-radius: 12px; align-items: center; justify-content: center; background: var(--background); color: var(--accent); margin-bottom: 14px; }
.value-icon .icon { width: 22px; height: 22px; }
.value h3 { font-size: 17px; }
.value p { color: var(--text-secondary); font-size: 14.5px; margin: 0; }

.timeline { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--border); }
.timeline li { position: relative; margin: 0; padding: 0 0 28px 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -7px; top: 8px;
  width: 12px; height: 12px; border-radius: 50%; background: var(--accent);
}
.timeline-date { font-size: 13.5px; color: var(--accent); font-weight: 600; margin: 0 0 4px; }
.timeline h3 { font-size: 17px; margin-bottom: 4px; }
.timeline li p:last-child { color: var(--text-secondary); margin: 0; }

/* ---------- 表格 ---------- */
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 26px; background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.spec-table th, .spec-table td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--border); font-size: 15px; }
.spec-table th { width: 34%; background: var(--background); font-weight: 600; color: var(--text-secondary); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

/* ---------- 联系 ---------- */
.contact-list { list-style: none; padding: 0; margin: 0 0 40px; display: grid; gap: 18px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; margin: 0; }
.contact-icon { display: inline-flex; width: 42px; height: 42px; border-radius: 12px; align-items: center; justify-content: center; background: #fff; border: 1px solid var(--border); color: var(--accent); flex: 0 0 auto; }
.contact-item h3 { font-size: 15px; margin-bottom: 2px; }
.contact-item p { margin: 0; color: var(--text-secondary); font-size: 14.5px; }
.contact-map-link { display: inline-flex; align-items: center; gap: 5px; color: inherit; text-decoration: none; }
.contact-map-link:hover { color: var(--primary); text-decoration: underline; }
.contact-map-link .icon { width: 14px; height: 14px; opacity: .6; }

/* ---------- 公司位置（腾讯地图） ---------- */
.map-block { margin: 0 0 40px; }
.map-card { position: relative; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff; }
.map-canvas { width: 100%; height: 340px; background: #EEF2F7; }
.map-placeholder {
  display: flex; flex-direction: column; gap: 6px; padding: 30px 28px;
  background:
    linear-gradient(0deg, rgba(148,163,184,.07) 1px, transparent 1px) 0 0 / 100% 34px,
    linear-gradient(90deg, rgba(148,163,184,.07) 1px, transparent 1px) 0 0 / 34px 100%,
    #F8FAFC;
}
.map-pin {
  display: inline-flex; width: 46px; height: 46px; border-radius: 14px; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--border); color: var(--accent); margin-bottom: 6px;
}
.map-placeholder-title { margin: 0; font-size: 16px; font-weight: 600; }
.map-placeholder-addr { margin: 0; font-size: 14px; color: var(--text-secondary); }
.map-coord { margin: 0; font-size: 12.5px; color: var(--text-secondary); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.map-actions { margin: 16px 0 0; }
.map-address { margin: 12px 0 0; font-size: 14px; color: var(--text-secondary); }
.map-note { margin: 4px 0 0; font-size: 13px; color: var(--text-secondary); }

.form-card { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 30px 32px; position: sticky; top: 96px; }
.form-note { font-size: 14px; color: var(--text-secondary); }
.inquiry-form .field { margin: 0 0 16px; }
.inquiry-form label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.req { color: #DC2626; margin-left: 3px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea {
  width: 100%; padding: 11px 14px; font: inherit; font-size: 15px;
  border: 1px solid var(--border); border-radius: 10px; background: #fff; color: inherit;
}
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}
.field.is-hidden { position: absolute; left: -9999px; }
.form-actions { margin: 22px 0 0; }
.form-actions .btn { width: 100%; justify-content: center; }

.alert { padding: 14px 20px; border-radius: 12px; margin-bottom: 26px; font-size: 15px; }
.alert-success { background: #ECFDF5; border: 1px solid #A7F3D0; color: #065F46; }
.alert-error { background: #FEF2F2; border: 1px solid #FECACA; color: #991B1B; }

/* ---------- 页脚 ---------- */
.site-footer { background: #111827; color: #D1D5DB; margin-top: 0; padding-top: 64px; }
.footer-grid { display: grid; gap: 40px; grid-template-columns: 1.6fr 1fr 1.2fr 1fr; padding-bottom: 44px; }
.footer-col h2 { font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: #fff; margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 9px; font-size: 14px; }
.footer-col a { color: #D1D5DB; }
.footer-col a:hover { color: #fff; }
.footer-brand strong { display: block; font-size: 18px; color: #fff; margin-bottom: 10px; }
.footer-brand p { font-size: 14px; opacity: .8; margin: 0; max-width: 46ch; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-contact .icon { width: 16px; height: 16px; margin-top: 4px; opacity: .7; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px 26px; align-items: center;
  padding: 22px 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: 13px;
}
.footer-bottom p { margin: 0; opacity: .72; }
.footer-ai a { opacity: .85; }

/* ---------- 响应式 ---------- */
/* header-cta 兜底隐藏：chrome.js 默认不渲染，设置 showHeaderCta=true 时才会显示 */
.header-cta { display: none !important; }
@media (max-width: 1024px) {
  .split-2, .split-5 { grid-template-columns: 1fr; gap: 40px; }
  .case { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .form-card { position: static; }
}

@media (max-width: 760px) {
  .header-inner { flex-wrap: wrap; padding: 12px 0; gap: 12px; }
  .site-nav { margin-left: 0; width: 100%; order: 3; overflow-x: auto; }
  .site-nav ul { flex-wrap: nowrap; }
  .header-actions { margin-left: auto; }
  .section { padding: 60px 0; }
  .hero { min-height: auto; }
  .hero-inner { padding: 72px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .page-body { padding: 40px 24px 64px; }
  .article-body { padding: 24px 20px; }
  .answer-block { padding: 22px 20px; }
  .media-grid { grid-template-columns: 1fr; }
  .media-grid li.is-wide { grid-column: span 1; }
}

@media print {
  .site-header, .site-footer, .hero-actions, .form-card { display: none; }
  body { background: #fff; }
}