/* ============================================================
   江西阜源新型材料有限公司 官网样式
   设计系统：Trust & Authority / Accessible & Ethical
   主色 #0F172A · 强调 #0369A1 · 背景 #F8FAFC
   ============================================================ */

:root {
  --color-primary: #0F172A;
  --color-primary-soft: #16223c;
  --color-on-primary: #ffffff;
  --color-secondary: #334155;
  --color-accent: #0369A1;
  --color-accent-hover: #0284C7;
  --color-on-accent: #ffffff;
  --color-background: #F8FAFC;
  --color-foreground: #020617;
  --color-card: #ffffff;
  --color-card-foreground: #020617;
  --color-muted: #E8ECF1;
  --color-muted-foreground: #475569;
  --color-border: #E2E8F0;
  --color-destructive: #DC2626;
  --color-ring: #0369A1;

  --font-sans: "Plus Jakarta Sans", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --container: 1200px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 14px 34px rgba(15, 23, 42, 0.16);
  --transition: 0.2s ease;
  --header-h: 64px;
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); }

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  color: var(--color-primary);
  font-weight: 700;
}

p { margin: 0 0 1em; }

ul, ol { margin: 0 0 1em; padding-left: 1.4em; }

:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection { background: var(--color-accent); color: #fff; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow { max-width: 860px; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
  color: #fff;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: 8px;
  border: 2px solid transparent;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.btn-accent { background: var(--color-accent); color: var(--color-on-accent); }
.btn-accent:hover { background: var(--color-accent-hover); color: #fff; }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-light { background: #fff; color: var(--color-primary); }
.btn-light:hover { background: var(--color-muted); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.btn-block { width: 100%; }
.btn-copy {
  margin-left: 8px;
  padding: 2px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-background);
  color: var(--color-accent);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-copy:hover { background: var(--color-accent); color: #fff; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-card);
  box-shadow: var(--shadow-sm);
}

.topbar {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 36px;
  gap: 12px;
}
.topbar a { color: #fff; font-weight: 600; }
.phone-link { display: inline-flex; align-items: center; gap: 6px; }
.topbar-right { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.topbar-divider { opacity: 0.4; }

.header-main { border-bottom: 1px solid var(--color-border); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 16px;
}

.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 9px;
  background: var(--color-primary);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-size: 17px; color: var(--color-primary); }
.logo-text small { font-size: 11px; color: var(--color-muted-foreground); letter-spacing: 0.4px; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  color: var(--color-secondary);
  font-weight: 500;
  border-radius: 6px;
  transition: all var(--transition);
}
.site-nav a:hover { color: var(--color-accent); background: var(--color-background); }
.site-nav a.active { color: var(--color-accent); font-weight: 700; }
.site-nav a.active::after {
  content: "";
  display: block;
  height: 3px;
  width: 22px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-top: -2px;
  position: absolute;
  bottom: 2px;
}
.site-nav a { position: relative; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-card);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  margin: 0 auto;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(3, 105, 161, 0.55), transparent 60%),
    linear-gradient(150deg, var(--color-primary) 0%, #10203c 55%, var(--color-primary-soft) 100%);
  color: #fff;
  padding: 84px 0 96px;
}
.hero-inner { max-width: 900px; }
.hero-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 18px;
}
.hero h1 { color: #fff; font-size: clamp(30px, 4.6vw, 48px); margin-bottom: 14px; }
.hero-lead {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255, 255, 255, 0.88);
  max-width: 760px;
  margin-bottom: 28px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.hero-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.hero-contact a { color: #fff; font-weight: 600; }

.hero-stats {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.hero-stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.hero-stat {
  padding: 22px 16px;
  text-align: center;
  border-right: 1px solid var(--color-border);
}
.hero-stat:last-child { border-right: none; }
.hero-stat strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  color: var(--color-accent);
}
.hero-stat span { font-size: 14px; color: var(--color-muted-foreground); }

/* ---------- 通用区块 ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--color-card); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); }
.section-head p { color: var(--color-muted-foreground); margin: 0; }

.section-more { text-align: center; margin-top: 36px; }

.notice {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  color: var(--color-secondary);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 28px;
  font-size: 14px;
}

/* ---------- 分类卡片 ---------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cat-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  color: var(--color-foreground);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.cat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.cat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); color: inherit; }
.cat-card:hover::before { transform: scaleX(1); }
.cat-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 1px;
}
.cat-card h3 { font-size: 20px; margin: 10px 0 8px; }
.cat-card p { font-size: 14px; color: var(--color-muted-foreground); }
.cat-more { font-weight: 600; color: var(--color-accent); font-size: 14px; }

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--color-foreground);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); color: inherit; }
.product-card-img { background: var(--color-muted); aspect-ratio: 4 / 3; }
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.product-card-body h3 { font-size: 17px; margin-bottom: 6px; }
.product-card-body p { font-size: 14px; color: var(--color-muted-foreground); flex: 1; margin-bottom: 10px; }
.card-link { font-size: 14px; font-weight: 700; color: var(--color-accent); }

/* ---------- 行业 / 特性 / 案例 / 文章 ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.industry-chip {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.industry-chip strong { color: var(--color-primary); font-size: 16px; }
.industry-chip span { font-size: 13px; color: var(--color-muted-foreground); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
}
.feature-card h3 { font-size: 18px; }
.feature-card p { font-size: 14px; color: var(--color-muted-foreground); margin: 0; }

.case-teasers, .article-teasers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-mini, .article-mini {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  transition: all var(--transition);
}
.case-mini h4 { font-size: 16px; margin-bottom: 6px; }
.case-mini p { font-size: 14px; color: var(--color-muted-foreground); margin: 0; }
.article-mini { display: block; color: var(--color-foreground); }
.article-mini:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); color: inherit; }
.article-mini h4 { font-size: 16px; }
.article-mini p { font-size: 14px; color: var(--color-muted-foreground); margin: 0; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-foreground);
  transition: all var(--transition);
}
.article-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); color: inherit; }
.article-card-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; }
.article-card-body h3 { font-size: 18px; line-height: 1.4; }
.article-card-body p { font-size: 14px; color: var(--color-muted-foreground); }

/* ---------- 页内横幅与面包屑 ---------- */
.page-banner {
  background:
    radial-gradient(700px 300px at 90% -20%, rgba(3, 105, 161, 0.5), transparent 60%),
    linear-gradient(140deg, var(--color-primary), var(--color-primary-soft));
  color: #fff;
  padding: 56px 0 58px;
}
.page-banner-sm { padding: 40px 0; }
.page-banner h1 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); }
.page-banner p { color: rgba(255, 255, 255, 0.85); margin: 0; }
.article-meta { font-size: 14px; margin-top: 8px !important; opacity: 0.75; }

.breadcrumb {
  padding-top: 18px;
  padding-bottom: 4px;
  font-size: 13px;
  color: var(--color-muted-foreground);
}
.breadcrumb a { color: var(--color-muted-foreground); }
.breadcrumb a:hover { color: var(--color-accent); }
.bc-sep { margin: 0 8px; opacity: 0.5; }
.bc-current { color: var(--color-primary); font-weight: 600; }

/* ---------- 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: center;
}
/* 公司简介「门面大图」：右栏整宽（实测约 521px，渲染 521×293），
 * 与左栏文字高度（约 253px）基本持平，两栏版面平衡。
 *
 * 历史沿革：此处原本是 4 张 16:9 照片的 2 列网格，每张仅 252×142，
 * 视觉冲击力弱且 1200px 原图只用 252px 显示（4.8 倍过采样，浪费带宽、拖累 LCP）。
 * 改为单张大图后，其余 3 张下移到下方「厂区实景」通栏区以 3 列呈现。
 *
 * ⚠️ 比例仍由 --ar 驱动，禁止在此硬编码 aspect-ratio。
 */
.about-hero-photo {
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.about-hero-photo img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: var(--ar, 16 / 9);
  object-fit: cover;
}
.img-note { font-size: 13px; color: var(--color-muted-foreground); margin: 10px 0 0; text-align: center; }

/* ---------- 照片网格 ----------
 * ⚠️ 比例一律由 --ar（图片真实原始尺寸，build.js 注入）驱动。
 *    此处禁止硬编码 aspect-ratio —— 曾因写死 4/3 导致
 *    16:9 工厂照纵向拉长、3:4 装车照横向拉伸。
 *    当容器比例 = 图片原生比例时，object-fit 不产生任何裁切。
 */
.photo-grid {
  display: grid;
  gap: 16px;
}
.photo-grid-2 { grid-template-columns: repeat(2, 1fr); }
.photo-grid-3 { grid-template-columns: repeat(3, 1fr); }
.photo-grid-4 { grid-template-columns: repeat(4, 1fr); }
.photo-grid picture {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.photo-grid picture:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.photo-grid picture img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: var(--ar, 4 / 3);
  object-fit: cover;
  object-position: center;
}

/* 首页工厂实景（hero-stats 下方，首屏后第一视觉锚点） */
.index-factory-photos { padding: 32px 0; }
.index-factory-photos .photo-grid-2 { gap: 20px; }
.index-factory-photos picture {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* 首页案例区发货实拍（竖图，限制宽度避免占位过高） */
.index-shipping-photo {
  display: block;
  margin: 20px auto 0;
  max-width: 420px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.index-shipping-photo img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: var(--ar, 3 / 4);
  object-fit: cover;
}

/* ============================================================
   行业知识库：列表页分类分组 + 文章详情页富文本
   ============================================================ */

/* ---------- 知识库列表页 ---------- */
.kb-stat { font-size: 15px; margin-top: 10px !important; opacity: 0.8; }

.cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-card);
  color: var(--color-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}
.cat-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: #eff8fe;
}
.cat-chip span {
  display: inline-block;
  min-width: 20px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--color-muted);
  color: var(--color-muted-foreground);
  font-size: 12px;
  text-align: center;
}

.kb-group { margin-bottom: 56px; scroll-margin-top: calc(var(--header-h) + 24px); }
.kb-group:last-child { margin-bottom: 0; }
.kb-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 20px;
  padding-left: 12px;
  border-left: 4px solid var(--color-accent);
}
.kb-group-head h2 { font-size: 22px; margin: 0; }
.kb-group-count { font-size: 14px; color: var(--color-muted-foreground); }

/* ---------- 文章正文 ---------- */
.page-article .article { font-size: 16.5px; line-height: 1.85; }
.page-article .article > * { margin: 0 0 20px; }
.page-article .article h2 {
  font-size: 23px;
  line-height: 1.4;
  margin: 40px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-muted);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-article .article h3 {
  font-size: 18px;
  margin: 28px 0 12px;
  color: var(--color-primary);
}
.page-article .article p { color: var(--color-secondary); }
.page-article .article strong { color: var(--color-foreground); font-weight: 600; }
.page-article .article ul,
.page-article .article ol { padding-left: 24px; color: var(--color-secondary); }
.page-article .article li { margin-bottom: 8px; }
.page-article .article li::marker { color: var(--color-accent); }

.article-cat-tag {
  display: inline-block;
  padding: 2px 10px;
  margin-right: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 13px;
}

/* 要点速览：AEO 区块，答案型内容前置 */
.article-summary {
  margin: 0 0 32px;
  padding: 20px 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
}
.article-summary-title {
  margin: 0 0 12px;
  font-size: 17px;
  padding: 0;
  border: none;
  color: var(--color-primary);
}
.article-summary ul { margin: 0; padding-left: 20px; }
.article-summary li { margin-bottom: 6px; color: var(--color-secondary); }
.article-summary li:last-child { margin-bottom: 0; }

.article-deeper {
  padding: 12px 16px;
  margin-bottom: 28px;
  background: #eff8fe;
  border-radius: var(--radius);
  font-size: 15px;
}

/* 目录 */
.article-toc {
  padding: 18px 22px;
  margin-bottom: 30px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.article-toc-title { font-size: 16px; margin: 0 0 10px; padding: 0; border: none; }
.article-toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 28px; }
.article-toc li { margin-bottom: 7px; font-size: 15px; break-inside: avoid; }

/* 正文表格：横向滚动保留表头（对比表的列名本身就是信息） */
.md-table-wrap {
  overflow-x: auto;
  margin: 26px 0 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-card);
}
.md-table { width: 100%; border-collapse: collapse; min-width: 560px; font-size: 14.5px; }
.md-table th,
.md-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
}
.md-table th {
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 600;
  white-space: nowrap;
}
.md-table tbody tr:last-child td { border-bottom: none; }
.md-table tbody tr:hover td { background: var(--color-background); }

/* 文末品牌块 */
.brand-note {
  margin: 32px 0;
  padding: 16px 20px;
  background: var(--color-background);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-muted-foreground);
  font-size: 15px;
  line-height: 1.75;
}

.article-standards {
  padding: 14px 18px;
  margin-top: 8px;
  background: var(--color-background);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--color-muted-foreground);
}
.article-standards code {
  padding: 1px 6px;
  margin: 0 2px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 13px;
  color: var(--color-primary);
}

/* FAQ */
.article-faq { margin-top: 44px; }
.article-faq h2 { margin-bottom: 18px; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  background: var(--color-card);
  overflow: hidden;
}
.faq-item summary {
  padding: 15px 20px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition);
}
.faq-item[open] summary::after { content: "−"; }
.faq-item summary:hover { color: var(--color-accent); }
.faq-answer { padding: 0 20px 16px; }
.faq-answer p { margin: 0; color: var(--color-secondary); font-size: 15.5px; }

/* 延伸阅读 */
.article-related { margin-top: 44px; }
.article-related h2 { margin-bottom: 18px; }
.related-list { list-style: none; margin: 0; padding: 0; }
.related-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}
.related-list li:last-child { border-bottom: none; }
.related-list a { font-size: 15.5px; font-weight: 500; }
.related-cat {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-muted-foreground);
  padding: 2px 8px;
  background: var(--color-muted);
  border-radius: 999px;
}

@media (max-width: 768px) {
  .page-article .article h2 { font-size: 20px; margin-top: 32px; }
  .article-toc ol { columns: 1; }
  .kb-group { margin-bottom: 40px; }
  .kb-group-head h2 { font-size: 19px; }
  .related-list li { flex-direction: column; gap: 6px; align-items: flex-start; }
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
  .photo-grid-2,
  .photo-grid-3,
  .photo-grid-4 { grid-template-columns: repeat(2, 1fr); }
  /* 奇数张照片降到 2 列后，最后一张会落单成「孤儿图」。
     让它跨满 2 列变全宽大图，视觉上比缩在半格更有冲击力。
     :nth-child(odd) 保证只在「最后一张处于奇数位」时触发，
     若总数是偶数（如 4 张）则不会误伤。 */
  .photo-grid-3 > picture:last-child:nth-child(odd) { grid-column: span 2; }
}

.info-table-wrap {
  overflow-x: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.info-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.info-table th, .info-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: 15px;
  vertical-align: top;
}
.info-table tr:last-child th, .info-table tr:last-child td { border-bottom: none; }
.info-table th { width: 30%; background: var(--color-muted); color: var(--color-primary); font-weight: 600; white-space: nowrap; }
.compare-table th { background: var(--color-primary); color: #fff; }

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.cert-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  text-align: center;
}
.cert-card--has-file {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}
.cert-card--has-file:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}
.cert-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-muted);
  color: var(--color-accent);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 10px;
}
.cert-card h4 { font-size: 16px; }
.cert-card p { font-size: 13px; color: var(--color-muted-foreground); margin: 0; }
.cert-card .cert-issuer { font-size: 12px; margin-top: 6px; }
.cert-card .cert-period { font-size: 12px; }
.cert-card .cert-note { font-size: 12px; margin-top: 4px; line-height: 1.5; }
.cert-cta {
  display: inline-block;
  margin-top: 12px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  max-width: 640px;
  margin-inline: auto;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
  transform: translateX(-50%);
}
.tl-item {
  position: relative;
  width: 50%;
  padding: 0 32px 28px 0;
  text-align: right;
}
.tl-item:nth-child(even) {
  margin-left: 50%;
  padding: 0 0 28px 32px;
  text-align: left;
}
.tl-item::after {
  content: "";
  position: absolute;
  right: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-card);
}
.tl-item:nth-child(even)::after { right: auto; left: -7px; }
.tl-year { font-weight: 800; color: var(--color-accent); }
.tl-item p { margin: 4px 0 0; color: var(--color-muted-foreground); font-size: 15px; }

/* ---------- 产品分类页 / 详情 ---------- */
.product-cat { margin-bottom: 56px; scroll-margin-top: 100px; }
.product-cat:last-child { margin-bottom: 0; }
.cat-head { margin-bottom: 22px; }
.cat-head h2 { font-size: 26px; }
.cat-head p { color: var(--color-muted-foreground); }

.product-detail-head {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
  align-items: start;
}
.product-detail-img img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.product-detail-info h2 { font-size: 28px; margin: 10px 0; }
.product-detail-info > p { color: var(--color-secondary); }
.detail-keypoints { margin: 16px 0 22px; }
.detail-keypoints li { margin-bottom: 6px; }
.detail-contact { display: flex; flex-wrap: wrap; gap: 12px; }

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}
.tag-priority { background: #E0F2FE; color: #075985; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--color-secondary);
}

.advantage-list { columns: 2; column-gap: 40px; }
.advantage-list li { margin-bottom: 10px; break-inside: avoid; }
.advantage-list li::marker { color: var(--color-accent); }

/* ---------- 手风琴（FAQ） ---------- */
.accordion-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.accordion-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  min-height: 52px;
}
.accordion-btn:hover { background: var(--color-background); }
.acc-icon { position: relative; width: 16px; height: 16px; flex-shrink: 0; }
.acc-icon::before, .acc-icon::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
  border-radius: 2px;
  transition: transform var(--transition);
}
.acc-icon::before { left: 0; right: 0; top: 7px; height: 2px; }
.acc-icon::after { top: 0; bottom: 0; left: 7px; width: 2px; }
.accordion-btn[aria-expanded="true"] .acc-icon::after { transform: scaleY(0); }
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}
.accordion-body { padding: 0 20px 18px; color: var(--color-secondary); font-size: 15px; }
.accordion-body p { margin: 0; }

/* ---------- 案例表 ---------- */
.table-scroll { overflow-x: auto; }
.cases-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-width: 760px;
}
.cases-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
}
.cases-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-secondary);
}
.cases-table tr:hover td { background: var(--color-background); }

/* ---------- 文章 ---------- */
.article-section { margin-bottom: 30px; }
.article-section h2 { font-size: 22px; padding-bottom: 10px; border-bottom: 2px solid var(--color-muted); }
.article-section p { color: var(--color-secondary); }
.article-cta {
  margin-top: 36px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}
.article-cta p { color: var(--color-muted-foreground); }

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 36px;
  align-items: start;
}
.contact-info { display: grid; gap: 16px; }
.contact-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
}
.contact-card h3 { font-size: 16px; margin-bottom: 8px; }
.contact-card p { margin: 0 0 4px; font-size: 15px; }
.contact-card .muted { font-size: 13px; color: var(--color-muted-foreground); }

.contact-form-wrap {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.contact-form-wrap h2 { font-size: 24px; }
.contact-form { margin-top: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.form-field label { font-size: 14px; font-weight: 600; color: var(--color-primary); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-foreground);
  background: var(--color-background);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.15);
  background: #fff;
}
.form-field .error { font-size: 13px; color: var(--color-destructive); }
.form-tip { font-size: 13px; color: var(--color-muted-foreground); margin: 12px 0 0; }

.lead-result {
  margin-top: 20px;
  border: 1px solid #BBF7D0;
  background: #F0FDF4;
  border-radius: var(--radius-lg);
  padding: 22px;
}
.lead-result h3 { color: #15803D; }
.lead-result pre {
  white-space: pre-wrap;
  word-break: break-all;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px;
  font-size: 14px;
  font-family: inherit;
  margin: 12px 0;
}
.result-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- CTA 条 ---------- */
.cta-band {
  background:
    radial-gradient(600px 300px at 15% -30%, rgba(3, 105, 161, 0.5), transparent 60%),
    linear-gradient(120deg, var(--color-primary), var(--color-primary-soft));
  color: #fff;
  padding: 48px 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: 26px; margin-bottom: 6px; }
.cta-inner p { color: rgba(255, 255, 255, 0.85); margin: 0; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding: 52px 20px 36px;
}
.footer-col h3 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  padding: 4px 0;
}
.footer-col a:hover { color: #fff; }
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.footer-logo span { color: #38BDF8; }
.footer-about p { color: rgba(255, 255, 255, 0.66); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-bottom a { color: rgba(255, 255, 255, 0.7); text-decoration: underline; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 80px 0; }
.notfound h1 { font-size: 72px; color: var(--color-accent); }
.notfound p { margin-bottom: 8px; }
.agent-links {
  list-style: none;
  margin: 24px auto;
  padding: 16px 20px;
  max-width: 560px;
  text-align: left;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 10px;
}
.agent-links li { margin: 6px 0; font-size: 14px; }
.agent-links a { color: #38BDF8; text-decoration: none; word-break: break-all; }
.agent-links a:hover { text-decoration: underline; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .case-teasers, .article-teasers { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats-inner { grid-template-columns: repeat(2, 1fr); }
  .hero-stat { border-bottom: 1px solid var(--color-border); }
}

@media (max-width: 768px) {
  .topbar-left { display: none; }
  .topbar-inner { justify-content: center; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    inset: auto 0 0 0;
    top: var(--header-h);
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: 10px 16px 24px;
    overflow-y: auto;
    max-height: calc(100vh - var(--header-h));
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 14px; border-bottom: 1px solid var(--color-border); border-radius: 0; }
  .site-nav a:last-child { border-bottom: none; }
  .site-nav a.active::after { display: none; }

  .hero { padding: 56px 0 64px; }
  .section { padding: 44px 0; }
  .product-detail-head { grid-template-columns: 1fr; }
  .advantage-list { columns: 1; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .form-row { grid-template-columns: 1fr; }
  .timeline::before { left: 6px; }
  .tl-item, .tl-item:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding: 0 0 26px 28px;
    text-align: left;
  }
  .tl-item::after, .tl-item:nth-child(even)::after { right: auto; left: 0; }
}

@media (max-width: 520px) {
  .cat-grid, .product-grid, .feature-grid, .industry-grid,
  .cert-grid, .article-grid, .case-teasers, .article-teasers {
    grid-template-columns: 1fr;
  }
  .hero-stats-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 20px; }
}

/* ---------- 桌面端固定询盘栏（≥1024px 显示，移动端由底部悬浮栏承载） ---------- */
.inquiry-rail {
  display: none;
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 88;
  flex-direction: column;
  gap: 6px;
  padding: 6px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-right: none;
  border-radius: 12px 0 0 12px;
  box-shadow: var(--shadow-md);
}
.ir-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 58px;
  padding: 9px 2px;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--transition);
}
.ir-btn:hover,
.ir-btn:focus-visible { opacity: 0.88; color: #fff; }
.ir-quote { background: var(--color-accent); }
.ir-phone { background: var(--color-primary); }
.ir-wechat { background: #07C160; }

/* 询盘 / 微信弹出面板：从右侧栏向左展开，带回弹动画 */
.ir-popover {
  display: none;
  position: fixed;
  right: 81px;
  /* 顶部对齐而非垂直居中：询盘面板与微信面板高度不同，居中会让切换时上下跳动 */
  top: max(90px, calc(50vh - 280px));
  width: 340px;
  max-height: 84vh;
  overflow-y: auto;
  padding: 22px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 89;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(28px) scale(0.96);
  transform-origin: right center;
  transition: opacity 0.24s ease, transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.3s;
}
.ir-popover.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0) scale(1);
}
.ir-title { font-size: 18px; margin: 0 0 4px; color: var(--color-primary); }
.ir-sub { font-size: 13px; color: var(--color-muted-foreground, #64748B); margin: 0 0 16px; }
.ir-form .form-field { margin-bottom: 12px; }
.ir-form .form-field label { font-size: 13px; }
.ir-form textarea { resize: vertical; }
.ir-tip { font-size: 12px; color: var(--color-muted-foreground, #64748B); margin: 10px 0 0; }
.ir-tip a { font-weight: 600; }
.ir-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--color-muted-foreground, #64748B);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}
.ir-close:hover { background: var(--color-muted, #F1F5F9); color: var(--color-primary); }
.ir-qr {
  display: block;
  width: 220px;
  height: 220px;
  margin: 0 auto 10px;
  border-radius: 8px;
  background: #fff;
}
.ir-qr-id { text-align: center; font-size: 13px; margin: 0 0 14px; }
.ir-done h4 { font-size: 17px; margin: 0 0 6px; color: var(--color-primary); }
.ir-done p { font-size: 14px; margin: 0 0 6px; }

/* 只在内容区右侧有余量时显示：容器 1200px 居中，栏宽 71px，
   视口小于 1350px 时栏会压住内容卡片，故不上线。 */
@media (min-width: 1350px) {
  .inquiry-rail { display: flex; }
  .ir-popover { display: block; }
}

/* 询盘表单锚点定位：跳转后不被固定页头压住 */
#lead-form { scroll-margin-top: calc(var(--header-h, 64px) + 16px); }

/* ---------- 移动端优化 ---------- */
a, button { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }

/* 底部悬浮联系栏（仅移动端显示） */
.mobile-contact-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.1);
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.mcb-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 52px;
  border-radius: 10px;
  border: none;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  transition: opacity var(--transition);
}
.mcb-btn:active { opacity: 0.85; }
.mcb-phone { background: var(--color-primary); }
.mcb-wechat { background: #07C160; }
.mcb-quote { background: var(--color-accent); }

/* 回到顶部 */
.back-to-top {
  position: fixed;
  right: 14px;
  bottom: 92px;
  z-index: 89;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: none; }

@media (max-width: 768px) {
  /* 顶栏信息已由底部悬浮栏承载，移动端隐藏以降低页头高度 */
  .topbar { display: none; }

  /* 主体内容为悬浮栏留出空间 */
  body { padding-bottom: 84px; }

  /* 悬浮联系栏 + 回到顶部位置 */
  .mobile-contact-bar { display: grid; }
  .back-to-top { bottom: 92px; }

  /* 联系页：移动端把询盘表单提到公司信息之前，进页即可见（原本要滚一屏） */
  .contact-form-wrap { order: -1; }

  /* 导航抽屉高度适配移动浏览器（含地址栏伸缩） */
  .site-nav { max-height: calc(100dvh - var(--header-h)); }

  /* 表格转卡片：移动端不再横向拖动 */
  .info-table-wrap { overflow: visible; background: none; border: none; }
  .info-table, .cases-table { min-width: 0; }
  .info-table thead, .cases-table thead { display: none; }
  .info-table tr, .cases-table tr {
    display: block;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    padding: 8px 14px;
  }
  .info-table tr:last-child, .cases-table tr:last-child { margin-bottom: 0; }
  .info-table th, .info-table td {
    display: block;
    width: 100%;
    border: none;
    padding: 4px 0;
  }
  .info-table th { background: none; font-weight: 700; color: var(--color-primary); }
  /* 规格表 / 对比表：隐藏左侧标签列，用 data-label 做 标签+值 行 */
  .spec-table th, .compare-table th { display: none; }
  .info-table td[data-label] {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 14px;
  }
  .info-table td[data-label]::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-primary);
    flex-shrink: 0;
  }
  .cases-table td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 14px;
    border: none;
    padding: 4px 0;
  }
  .cases-table td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-primary);
    flex-shrink: 0;
  }
  .cases-table tr:hover td { background: none; }
}

@media (max-width: 520px) {
  /* 首屏按钮通栏，方便拇指点按 */
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .contact-form-wrap h2 { font-size: 21px; }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}