/* ==========================================================================
   华鑫检测 - 第三方检测机构官网 全站样式
   --------------------------------------------------------------------------
   目录：
   01. 设计变量与基础重置
   02. 通用工具类（container / btn / tag / section）
   03. 页头导航
   04. 首页 Hero 横幅
   05. 通用子页横幅（page-hero）与面包屑
   06. 服务领域 / 核心优势卡片
   07. 数据统计条
   08. 新闻列表与分页
   09. 文章内容页排版（含数据表格）
   10. 侧边栏
   11. 仪器设备页
   12. 荣誉资质页
   13. 关于我们（时间轴 / 企业文化 / 联系方式）
   14. 常见问题（FAQ）
   15. CTA 行动横幅
   16. 页脚
   17. 返回顶部
   18. 滚动显现动画与响应式
   ========================================================================== */

/* ---------- 01. 设计变量与基础重置 ---------- */
:root {
  --color-primary:        #183883;
  --color-primary-dark:   #122c66;
  --color-primary-deep:   #0c1f47;
  --color-primary-light:  #e9eef8;
  --color-accent:         #f59928;
  --color-accent-dark:    #d97d0d;
  --color-success:        #16a34a;
  --color-heading:        #0f172a;
  --color-text:           #374151;
  --color-text-light:     #64748b;
  --color-border:         #e2e8f0;
  --color-bg:             #f6f9fc;
  --color-white:          #ffffff;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container: 1400px;
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;
  --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 16px 40px rgba(15, 23, 42, 0.14);
  --transition: all 0.28s ease;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent-dark);
}

ul,
ol {
  list-style-position: inside;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 02. 通用工具类 ---------- */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}

.section {
  padding-block: 84px;
}

.section-alt {
  background-color: var(--color-bg);
}

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head .kicker {
  display: inline-block;
  padding: 4px 14px;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: 999px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.35;
}

.section-desc {
  margin-top: 14px;
  font-size: 15px;
  color: var(--color-text-light);
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  box-shadow: 0 8px 20px rgba(245, 153, 40, 0.35);
}

.btn-primary:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(245, 153, 40, 0.45);
}

.btn-outline {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.65);
  background: transparent;
}

.btn-outline:hover {
  color: var(--color-white);
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.12);
}

.btn-ghost {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: transparent;
}

.btn-ghost:hover {
  color: var(--color-white);
  background: var(--color-primary);
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: 999px;
}

.tag-hot {
  color: #b45309;
  background-color: #fef3c7;
}

/* ---------- 03. 页头导航 ---------- */





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

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}





.site-nav {
  margin-left: auto;
}

.site-nav ul {
  display: flex;
  gap: 8px;
  list-style: none;
}

.site-nav a {
  display: block;
  padding: 8px 18px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-heading);
  border-radius: var(--radius-sm);
}

.site-nav a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.site-nav a[aria-current="page"] {
  color: var(--color-white);
  background-color: var(--color-primary);
}

.header-cta {
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  border-radius: var(--radius);
  box-shadow: 0 6px 16px rgba(245, 153, 40, 0.35);
}

.header-cta:hover {
  color: var(--color-white);
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 9px;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-heading);
  transition: var(--transition);
}

/* ---------- 04. 首页 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: 96px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 60%, var(--color-primary-deep) 100%);
}


.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  margin-bottom: 22px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
}

.hero-title {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
}

.hero-title em {
  font-style: normal;
  color: #ffd08a;
}

.hero-desc {
  margin-top: 20px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 64px;
  padding: 26px 30px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(4px);
}

.hero-stat-num {
  font-size: 30px;
  font-weight: 700;
  color: #ffd08a;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- 05. 子页横幅与面包屑 ---------- */
.page-hero {
  padding-block: 56px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
}

.page-desc {
  max-width: 760px;
  margin-top: 12px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
}

.breadcrumb {
  margin-top: 22px;
  font-size: 13.5px;
}

.breadcrumb ol {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  list-style: none;
  padding: 11px 18px;
  background-color: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.breadcrumb li + li::before {
  content: "›";
  font-weight: 700;
  color: rgba(255, 255, 255, 0.55);
}

.breadcrumb a,
.breadcrumb [aria-current] {
  color: #ffffff;
}

.breadcrumb a {
  opacity: 0.92;
}

.breadcrumb a:hover {
  color: #ffce8a;
  opacity: 1;
}

.breadcrumb [aria-current] {
  font-weight: 700;
  color: #ffce8a;
}

/* ---------- 06. 服务领域 / 核心优势卡片 ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.card {
  padding: 30px 26px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  margin-bottom: 18px;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius);
}

.card:hover .card-icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}

.card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-heading);
}

.card-title a {
  color: inherit;
}

.card-title a:hover {
  color: var(--color-primary);
}

.card-desc {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-light);
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.card-links .tag {
  font-weight: 500;
  background-color: var(--color-bg);
  color: var(--color-text-light);
}

/* ---------- 07. 数据统计条 ---------- */
.stat-band {
  padding-block: 64px;
  background:
    linear-gradient(135deg, var(--color-primary-deep), var(--color-primary-dark));
  color: var(--color-white);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-num {
  font-size: 40px;
  font-weight: 700;
  color: #ffd08a;
}

.stat-num small {
  font-size: 20px;
}

.stat-label {
  margin-top: 6px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- 08. 新闻列表与分页 ---------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
  padding-block: 56px;
}

.page-main > h1 {
  margin-bottom: 8px;
  font-size: 30px;
  color: var(--color-heading);
}

.page-main .page-lede {
  margin-bottom: 26px;
  color: var(--color-text-light);
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.news-filter button {
  padding: 7px 20px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.news-filter button[aria-pressed="true"] {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.news-item {
  display: flex;
  gap: 22px;
  padding: 22px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.news-item + .news-item {
  margin-top: 18px;
}

.news-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.news-item[hidden] {
  display: none;
}

.news-thumb {
  flex-shrink: 0;
  width: 240px;
  border-radius: var(--radius);
  overflow: hidden;
}

.news-body h2 {
  font-size: 19px;
  line-height: 1.5;
}

.news-body h2 a {
  color: var(--color-heading);
}

.news-body h2 a:hover {
  color: var(--color-primary);
}

.news-summary {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-light);
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 36px;
}

.page-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding-inline: 12px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.page-num:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.page-num[aria-current] {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.page-num.is-disabled {
  color: #cbd5e1;
  pointer-events: none;
}

/* ---------- 09. 文章内容页排版 ---------- */
.article {
  padding: 34px 36px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.article-title {
  font-size: 28px;
  line-height: 1.45;
  color: var(--color-heading);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 20px;
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border);
}

.article-cover {
  margin-top: 22px;
  border-radius: var(--radius);
  overflow: hidden;
}

.article-body {
  margin-top: 26px;
}

.article-body h2 {
  margin: 36px 0 14px;
  padding-left: 14px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  border-left: 4px solid var(--color-primary);
  line-height: 1.4;
}

.article-body h3 {
  margin: 26px 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-heading);
}

.article-body p {
  margin: 12px 0;
}

.article-body ul,
.article-body ol {
  margin: 12px 0;
  padding-left: 6px;
}

.article-body li {
  margin: 6px 0;
}

.article-body strong {
  color: var(--color-heading);
}

.article-body blockquote {
  margin: 18px 0;
  padding: 16px 20px;
  font-size: 15px;
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* 数据表格（格式化展示） */
.table-wrap {
  margin: 18px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 560px;
  font-size: 14px;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table caption {
  caption-side: top;
  padding-bottom: 10px;
  font-size: 13px;
  text-align: left;
  color: var(--color-text-light);
}

.data-table th,
.data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table thead th {
  font-weight: 700;
  color: var(--color-white);
  white-space: nowrap;
}

.data-table thead tr {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.data-table thead th:first-letter {
  color: inherit;
}

.data-table tbody tr:nth-child(even) {
  background: var(--color-bg);
}

.data-table tbody tr:hover {
  background: var(--color-primary-light);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--color-border);
}

.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 22px;
}

.article-nav a {
  padding: 14px 18px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.article-nav a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.article-nav a:last-child {
  text-align: right;
}

.article-nav small {
  display: block;
  color: var(--color-text-light);
}

/* ---------- 10. 侧边栏 ---------- */
.aside-card {
  padding: 24px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.aside-card + .aside-card {
  margin-top: 20px;
}

.aside-card-hot {
  color: var(--color-white);
  background: linear-gradient(150deg, var(--color-primary), var(--color-primary-deep));
  border: none;
}

.aside-title {
  padding-bottom: 12px;
  margin-bottom: 16px;
  font-size: 17px;
  color: var(--color-heading);
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.aside-card-hot .aside-title {
  color: var(--color-white);
}

.hot-list {
  list-style: none;
}

.hot-list li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  font-size: 14px;
  border-bottom: 1px dashed rgba(148, 163, 184, 0.35);
}

.hot-list li:last-child {
  border-bottom: none;
}

.hot-rank {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-white);
  background: #94a3b8;
  border-radius: var(--radius-sm);
}

.hot-list li:nth-child(1) .hot-rank { background: #ef4444; }
.hot-list li:nth-child(2) .hot-rank { background: #f59928; }
.hot-list li:nth-child(3) .hot-rank { background: #0ea5e9; }

.hot-list a {
  color: inherit;
}

.hot-list a:hover {
  color: var(--color-primary);
}

.aside-card-hot a {
  color: rgba(255, 255, 255, 0.92);
}

.aside-card-hot a:hover {
  color: #ffd08a;
}

.hotline {
  margin: 14px 0 4px;
  font-size: 26px;
  font-weight: 700;
  color: #ffd08a;
}

.hotline-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
}

/* ---------- 11. 仪器设备页 ---------- */
.equip-card {
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.equip-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.equip-img {
  aspect-ratio: 8 / 5;
  overflow: hidden;
}

.equip-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.equip-card:hover .equip-img img {
  transform: scale(1.05);
}

.equip-body {
  padding: 20px 22px 24px;
}

.equip-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-heading);
}

.equip-model {
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-text-light);
}

.equip-desc {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-light);
}

/* ---------- 12. 荣誉资质页 ---------- */
.honor-card {
  text-align: center;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.honor-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.honor-img {
  aspect-ratio: 8 / 5;
  overflow: hidden;
}

.honor-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.honor-body {
  padding: 18px 22px 24px;
}

.honor-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-heading);
}

.honor-desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-light);
}

.qual-item {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.qual-item .tag {
  flex-shrink: 0;
  height: fit-content;
  margin-top: 3px;
}

.qual-item h3 {
  font-size: 16px;
  color: var(--color-heading);
}

.qual-item p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-text-light);
}

.note-box {
  padding: 18px 22px;
  margin-top: 28px;
  font-size: 14px;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius);
}

.note-box strong {
  color: #b45309;
}

/* ---------- 13. 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: stretch;
}

.about-grid .about-copy h2 {
  font-size: 28px;
  color: var(--color-heading);
}

.about-grid .about-copy p {
  margin-top: 14px;
}

.about-media {
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 30px;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 7px;
  width: 2px;
  background: linear-gradient(var(--color-primary), var(--color-primary-light));
}

.timeline-item {
  position: relative;
  padding: 0 0 30px 26px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -30px;
  width: 16px;
  height: 16px;
  background: var(--color-white);
  border: 4px solid var(--color-primary);
  border-radius: 50%;
}

.timeline-year {
  display: inline-block;
  padding: 2px 12px;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: 999px;
}

.timeline-item h3 {
  font-size: 17px;
  color: var(--color-heading);
}

.timeline-item p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--color-text-light);
}

.culture-card {
  text-align: center;
}

.culture-card .card-icon {
  margin-inline: auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.contact-item {
  display: flex;
  gap: 14px;
  padding: 22px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.contact-item .card-icon {
  width: 48px;
  height: 48px;
  margin: 0;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-item h3 {
  font-size: 16px;
  color: var(--color-heading);
}

.contact-item p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--color-text-light);
  word-break: break-all;
}

/* ---------- 14. FAQ ---------- */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.faq-item + .faq-item {
  margin-top: 14px;
}

.faq-item summary {
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 46px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 20px;
  font-size: 22px;
  font-weight: 400;
  color: var(--color-primary);
  transform: translateY(-50%);
  transition: var(--transition);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  font-size: 14px;
  color: var(--color-text-light);
}

/* ---------- 15. CTA 行动横幅 ---------- */
.cta-band {
  padding-block: 84px;
  text-align: center;
  color: var(--color-white);
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(255, 255, 255, 0.12), transparent 60%),
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 55%, var(--color-primary-deep) 100%);
}

.cta-band h2 {
  font-size: 30px;
  font-weight: 700;
}

.cta-band p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.92);
}

.cta-band .btn {
  margin-top: 26px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  box-shadow: 0 8px 20px rgba(245, 153, 40, 0.35);
}

.cta-band .btn:hover {
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  color: #cbd5e1;
  background: var(--color-heading);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-block: 64px 48px;
}


.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
}

.footer-title {
  margin-bottom: 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
}

.footer-links {
  list-style: none;
}

.footer-links li + li {
  margin-top: 10px;
}

.footer-links a {
  font-size: 14px;
  color: #cbd5e1;
}

.footer-links a:hover {
  color: var(--color-white);
  padding-left: 4px;
}

.footer-contact {
  font-size: 14px;
}

.footer-contact li {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  list-style: none;
}

.footer-contact li::before {
  content: "▸";
  color: var(--color-accent);
}

.footer-bottom {
  padding-block: 20px;
  font-size: 13px;
  color: #94a3b8;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}

.footer-bottom a {
  color: #94a3b8;
}

.footer-bottom a:hover {
  color: var(--color-white);
}

/* ---------- 17. 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  right: 26px;
  bottom: 30px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 18px;
  color: var(--color-white);
  background: var(--color-primary);
  border: none;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  background: var(--color-accent);
}

/* ---------- 18. 滚动显现动画与响应式 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 200;
  padding: 8px 16px;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 8px;
  color: var(--color-white);
}

@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-title {
    font-size: 36px;
  }
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 10px 20px 16px;
  }

  .site-nav a {
    padding: 12px 6px;
    border-bottom: 1px dashed var(--color-border);
  }

  .nav-toggle {
    display: flex;
  }

  .header-cta {
    display: none;
  }

}

@media (max-width: 640px) {
  .section {
    padding-block: 56px;
  }

  .section-title {
    font-size: 26px;
  }

  .grid-3,
  .grid-4,
  .stat-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-block: 64px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .news-item {
    flex-direction: column;
  }

  .news-thumb {
    width: 100%;
  }

  .article {
    padding: 24px 18px;
  }

  .article-title {
    font-size: 22px;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 26px;
  }

  .footer-brand,
  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }

}

/* ==========================================================================
   首页样式（经典商务版）—— 仅作用于 body[data-page="home"]
   与上方内页样式共存于同一文件；同名类以内方带作用域前缀的规则为准
   ========================================================================== */
:root {
  --blue:       #183883;
  --blue-dark:  #122c66;
  --blue-deep:  #0c1f47;
  --blue-tint:  #e9eef8;
  --accent:     #f59928;
  --accent-dark:#d97d0d;
  --heading:    #16213c;
  --text:       #3d4759;
  --muted:      #6b7585;
  --line:       #dfe5f0;
  --bg:         #f5f7fc;
  --white:      #ffffff;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 10px 30px rgba(12, 31, 71, 0.10);
  --tr: all 0.25s ease;
}

body[data-page="home"] {
  line-height: 1.75;
  color: var(--text);
}

body[data-page="home"] .container { max-width: 1400px; margin-inline: auto; padding-inline: 22px; }
body[data-page="home"] .section { padding-block: 84px; }
body[data-page="home"] .section-alt { background: var(--bg); }

body[data-page="home"] .skip-link {
  position: absolute; top: -48px; left: 12px; z-index: 300;
  padding: 8px 16px; color: #fff; background: var(--blue); border-radius: 8px;
}
body[data-page="home"] .skip-link:focus { top: 8px; color: #fff; }

/* 区块标题（左对齐 + 蓝色竖条） */
body[data-page="home"] .sec-head { margin-bottom: 46px; }
body[data-page="home"] .sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 3px; color: var(--blue);
}
body[data-page="home"] .sec-kicker::before { content: ""; width: 26px; height: 3px; background: var(--accent); border-radius: 2px; }
body[data-page="home"] .sec-title { margin-top: 8px; font-size: clamp(26px, 3.2vw, 36px); font-weight: 800; color: var(--heading); line-height: 1.3; }
body[data-page="home"] .sec-desc { margin-top: 10px; max-width: 680px; color: var(--muted); }

body[data-page="home"] .btn {
  display: inline-block; padding: 13px 30px; font-size: 15px; font-weight: 600;
  line-height: 1.5; border: 2px solid transparent; border-radius: 10px;
  cursor: pointer; transition: var(--tr);
}
body[data-page="home"] .btn-accent {
  color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 8px 20px rgba(245, 153, 40, 0.35);
}
body[data-page="home"] .btn-accent:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(245, 153, 40, 0.45); }
body[data-page="home"] .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.6); background: transparent; }
body[data-page="home"] .btn-ghost:hover { color: #fff; border-color: #fff; background: rgba(255, 255, 255, 0.12); }
body[data-page="home"] .btn-blue { color: var(--blue); border-color: var(--blue); background: transparent; }
body[data-page="home"] .btn-blue:hover { color: #fff; background: var(--blue); }

/* ---------- 顶部信息条 / 页头 ---------- */

body[data-page="home"] .site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(8px); box-shadow: 0 1px 0 var(--line); }
body[data-page="home"] .header-inner { display: flex; align-items: center; gap: 32px; min-height: 76px; }
body[data-page="home"] .logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

body[data-page="home"] .site-nav { margin-left: auto; }
body[data-page="home"] .site-nav > ul { display: flex; gap: 6px; list-style: none; }
body[data-page="home"] .site-nav a { display: block; padding: 9px 18px; font-size: 16px; font-weight: 500; color: var(--heading); border-radius: 8px; }
body[data-page="home"] .site-nav a:hover { color: var(--blue); background: var(--blue-tint); }
body[data-page="home"] .site-nav a[aria-current="page"] { color: #fff; background: var(--blue); }

body[data-page="home"] .header-cta {
  flex-shrink: 0; padding: 10px 22px; font-size: 14px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 10px; box-shadow: 0 6px 16px rgba(245, 153, 40, 0.35);
}
body[data-page="home"] .header-cta:hover { color: #fff; transform: translateY(-2px); }

body[data-page="home"] .nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px; margin-left: auto;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; cursor: pointer;
}
body[data-page="home"] .nav-toggle span { display: block; width: 100%; height: 2px; background: var(--heading); }

/* ---------- 首屏 ---------- */
body[data-page="home"] .hero {
  position: relative; overflow: hidden; padding-block: 92px 150px;
  color: #fff;
  background:
    linear-gradient(130deg, var(--blue) 0%, var(--blue-dark) 55%, var(--blue-deep) 100%);
  min-height: calc(100vh - 157px);
  display: flex;
  align-items: center;
}
body[data-page="home"] .hero > .container { width: 100%; }
body[data-page="home"] .hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
body[data-page="home"] .hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; margin-bottom: 22px;
  font-size: 13px; font-weight: 600; background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28); border-radius: 999px;
}
body[data-page="home"] .hero-title { font-size: clamp(34px, 4.6vw, 52px); font-weight: 800; line-height: 1.28; }
body[data-page="home"] .hero-title em { font-style: normal; color: #ffce8a; }
body[data-page="home"] .hero-desc { margin-top: 20px; max-width: 560px; font-size: 16.5px; color: rgba(255, 255, 255, 0.88); }
body[data-page="home"] .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }


/* 悬浮数据条 */
body[data-page="home"] .hero-stats {
  position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 18px; max-width: 1400px; margin: -84px auto 0; padding: 30px 34px;
  background: #fff; border-radius: 16px; box-shadow: var(--shadow);
}
body[data-page="home"] .hero-stat { text-align: center; border-left: 1px solid var(--line); }
body[data-page="home"] .hero-stat:first-child { border-left: none; }
body[data-page="home"] .hero-stat-num { font-size: 32px; font-weight: 800; color: var(--blue); }
body[data-page="home"] .hero-stat-num small { font-size: 18px; }
body[data-page="home"] .hero-stat-label { font-size: 13px; color: var(--muted); }

/* ---------- 服务领域 ---------- */

/* ---------- 数据带 ---------- */
body[data-page="home"] .stat-band {
  padding-block: 60px; color: #fff;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-deep));
}
body[data-page="home"] .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
body[data-page="home"] .stat-num { font-size: 38px; font-weight: 800; color: #ffce8a; }
body[data-page="home"] .stat-num small { font-size: 19px; }
body[data-page="home"] .stat-label { margin-top: 6px; font-size: 14px; color: rgba(255, 255, 255, 0.82); }

/* ---------- 核心优势 ---------- */
body[data-page="home"] .adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
body[data-page="home"] .adv-card { position: relative; padding: 26px 22px; background: #fff; border: 1px solid var(--line); border-radius: 12px; transition: var(--tr); }
body[data-page="home"] .adv-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--blue-tint); }
body[data-page="home"] .adv-no {
  position: absolute; top: 18px; right: 20px; font-size: 34px; font-weight: 800;
  color: var(--blue-tint); line-height: 1;
}
body[data-page="home"] .adv-card:hover .adv-no { color: rgba(245, 153, 40, 0.25); }
body[data-page="home"] .adv-card h3 { font-size: 18px; color: var(--heading); }
body[data-page="home"] .adv-card p { margin-top: 8px; font-size: 14px; color: var(--muted); }

/* ---------- 仪器设备 / 资讯 ---------- */
body[data-page="home"] .eq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
body[data-page="home"] .eq-card { overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: 12px; transition: var(--tr); }
body[data-page="home"] .eq-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
body[data-page="home"] .eq-img { aspect-ratio: 8 / 5; overflow: hidden; }
body[data-page="home"] .eq-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
body[data-page="home"] .eq-card:hover .eq-img img { transform: scale(1.05); }
body[data-page="home"] .eq-body { padding: 18px 22px 22px; }
body[data-page="home"] .eq-body h3 { font-size: 18px; color: var(--heading); }
body[data-page="home"] .eq-model { margin-top: 4px; font-size: 13px; color: var(--muted); }

body[data-page="home"] .more-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 34px; font-weight: 600; }
body[data-page="home"] .more-link::after { content: "→"; transition: var(--tr); }
body[data-page="home"] .more-link:hover::after { transform: translateX(5px); }
body[data-page="home"] .center { text-align: center; }

body[data-page="home"] .news-list { display: grid; gap: 16px; }
body[data-page="home"] .news-item {
  display: flex; gap: 22px; padding: 20px; background: #fff;
  border: 1px solid var(--line); border-radius: 12px; transition: var(--tr);
}
body[data-page="home"] .news-item:hover { border-color: var(--blue-tint); box-shadow: var(--shadow); }
body[data-page="home"] .news-thumb { flex-shrink: 0; width: 220px; border-radius: 10px; overflow: hidden; }
body[data-page="home"] .news-item h3 { font-size: 18px; line-height: 1.5; }
body[data-page="home"] .news-item h3 a { color: var(--heading); }
body[data-page="home"] .news-item h3 a:hover { color: var(--blue); }
body[data-page="home"] .news-sum { margin-top: 8px; font-size: 14px; color: var(--muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
body[data-page="home"] .news-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; font-size: 13px; color: var(--muted); }
body[data-page="home"] .news-meta .tag { padding: 2px 10px; font-size: 12px; font-weight: 600; color: var(--blue); background: var(--blue-tint); border-radius: 999px; }

/* ---------- FAQ ---------- */
body[data-page="home"] .faq-list { max-width: 840px; margin: 0 auto; }
body[data-page="home"] .faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; }
body[data-page="home"] .faq-item + .faq-item { margin-top: 14px; }
body[data-page="home"] .faq-item summary {
  position: relative; padding: 17px 50px 17px 22px; font-size: 16px; font-weight: 600;
  color: var(--heading); cursor: pointer; list-style: none;
}
body[data-page="home"] .faq-item summary::-webkit-details-marker { display: none; }
body[data-page="home"] .faq-item summary::after {
  content: "+"; position: absolute; top: 50%; right: 20px; font-size: 22px;
  color: var(--blue); transform: translateY(-50%); transition: var(--tr);
}
body[data-page="home"] .faq-item[open] summary::after { content: "−"; }
body[data-page="home"] .faq-answer { padding: 0 22px 18px; font-size: 14px; color: var(--muted); }

/* ---------- CTA / 页脚 ---------- */
body[data-page="home"] .cta-band {
  position: relative; overflow: hidden; padding-block: 70px; text-align: center; color: #fff;
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(255, 255, 255, 0.12), transparent 60%),
    linear-gradient(135deg, var(--blue), var(--blue-dark));
}
body[data-page="home"] .cta-band h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; }
body[data-page="home"] .cta-band p { margin-top: 12px; color: rgba(255, 255, 255, 0.85); }
body[data-page="home"] .cta-band .btn { margin-top: 26px; }

body[data-page="home"] .site-footer { color: #b9c2d8; background: var(--blue-deep); }
body[data-page="home"] .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-block: 60px 46px; }
body[data-page="home"] .footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.85; }
body[data-page="home"] .footer-title { margin-bottom: 18px; font-size: 16px; font-weight: 700; color: #fff; }
body[data-page="home"] .footer-links { list-style: none; }
body[data-page="home"] .footer-links li + li { margin-top: 10px; }
body[data-page="home"] .footer-links a { font-size: 14px; color: #b9c2d8; }
body[data-page="home"] .footer-links a:hover { color: #fff; padding-left: 4px; }
body[data-page="home"] .footer-contact { font-size: 14px; list-style: none; }
body[data-page="home"] .footer-contact li { display: flex; gap: 8px; margin-top: 12px; }
body[data-page="home"] .footer-contact li::before { content: "▸"; color: var(--accent); }
body[data-page="home"] .footer-bottom { padding-block: 20px; font-size: 13px; color: #8593b3; border-top: 1px solid rgba(185, 194, 216, 0.2); }
body[data-page="home"] .footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
body[data-page="home"] .footer-bottom a { color: #8593b3; }
body[data-page="home"] .footer-bottom a:hover { color: #fff; }

/* ---------- 返回顶部 / 动画 ---------- */
body[data-page="home"] .back-to-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 90;
  display: flex; align-items: center; justify-content: center; width: 46px; height: 46px;
  font-size: 18px; color: #fff; background: var(--blue); border: none; border-radius: 50%;
  box-shadow: var(--shadow); cursor: pointer; opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: var(--tr);
}
body[data-page="home"] .back-to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
body[data-page="home"] .back-to-top:hover { background: var(--accent); }

body[data-page="home"] .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
body[data-page="home"] .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  body[data-page="home"] html { scroll-behavior: auto; }
  body[data-page="home"] .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  body[data-page="home"] .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  body[data-page="home"] .adv-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  body[data-page="home"] .footer-grid { grid-template-columns: repeat(2, 1fr); }
  body[data-page="home"] .site-nav {
    position: absolute; top: 100%; left: 0; right: 0; display: none;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  body[data-page="home"] .site-nav.is-open { display: block; }
  body[data-page="home"] .site-nav > ul { flex-direction: column; gap: 0; padding: 10px 20px 16px; }
  body[data-page="home"] .site-nav a { padding: 12px 6px; border-bottom: 1px dashed var(--line); }
  body[data-page="home"] .nav-toggle { display: flex; flex-shrink: 0; }
  body[data-page="home"] .header-cta { display: none; }
  body[data-page="home"] .hero { padding-block: 64px 140px; min-height: 0; display: block; }
}
@media (max-width: 640px) {
  body[data-page="home"] .section { padding-block: 56px; }
  body[data-page="home"] .hero-stats { grid-template-columns: repeat(2, 1fr); margin-top: -70px; }
  body[data-page="home"] .hero-stat { border-left: none; border-top: 1px solid var(--line); padding-top: 14px; }
  body[data-page="home"] .hero-stat:nth-child(-n + 2) { border-top: none; padding-top: 0; }
  body[data-page="home"] .news-item { flex-direction: column; }
  body[data-page="home"] .news-thumb { width: 100%; }
  body[data-page="home"] .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  body[data-page="home"] .eq-grid, body[data-page="home"] .adv-grid, body[data-page="home"] .stat-grid { grid-template-columns: 1fr; }
}



/* ---------- 服务领域：左聚焦大卡 + 右紧凑磁贴（整体高度 ≤500px） ---------- */
body[data-page="home"] .field-layout {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) 2.3fr;
  gap: 20px;
  align-items: stretch;
}

/* 左侧：科研检测聚焦大卡 */
body[data-page="home"] .field-hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: 32px 30px;
  border-radius: 14px;
  color: #ffffff;
  background:
    radial-gradient(360px 220px at 88% 6%, rgba(255, 255, 255, 0.16), transparent 60%),
    linear-gradient(165deg, var(--blue) 0%, var(--blue-dark) 60%, var(--blue-deep) 100%);
  box-shadow: 0 18px 40px rgba(12, 31, 71, 0.25);
  transition: var(--tr);
}

body[data-page="home"] .field-hero:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 48px rgba(12, 31, 71, 0.3);
}

body[data-page="home"] .field-hero-tag {
  font-family: Consolas, "Courier New", monospace;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: #ffce8a;
}

body[data-page="home"] .field-hero-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  font-size: 24px;
  font-weight: 700;
  color: var(--blue);
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(5, 14, 35, 0.35);
}

body[data-page="home"] .field-hero-name {
  font-size: 34px;
  font-weight: 900;
  line-height: 1.2;
}

body[data-page="home"] .field-hero-desc {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
}

body[data-page="home"] .field-hero-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 14px;
  padding: 14px 0 0;
  border-top: 1px dashed rgba(255, 255, 255, 0.25);
}

body[data-page="home"] .field-hero-list li {
  position: relative;
  padding-left: 15px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

body[data-page="home"] .field-hero-list li::before {
  content: "+";
  position: absolute;
  left: 0;
  font-family: Consolas, "Courier New", monospace;
  font-weight: 700;
  color: #ffce8a;
}

body[data-page="home"] .field-hero-cta {
  font-size: 13.5px;
  font-weight: 700;
  color: #ffce8a;
  transition: var(--tr);
}

body[data-page="home"] .field-hero:hover .field-hero-cta {
  color: #ffffff;
}

/* 右侧：一行 4 个的紧凑横条磁贴 */
body[data-page="home"] .field-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 106px;
  gap: 18px;
}

body[data-page="home"] .field {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  background-color: #f6f8fc;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--tr);
}

body[data-page="home"] .field::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

body[data-page="home"] .field-no {
  position: absolute;
  top: 8px;
  right: 10px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--blue-tint);
  transition: var(--tr);
}

body[data-page="home"] .field-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  font-size: 18px;
  font-weight: 700;
  color: var(--blue);
  border-radius: 10px;
  background-color: #e3edf9;
  transition: var(--tr);
}

body[data-page="home"] .field-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

body[data-page="home"] .field-name {
  font-size: 15px;
  font-weight: 800;
  color: var(--heading);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body[data-page="home"] .field-desc {
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body[data-page="home"] .field:hover {
  transform: translateY(-3px);
  border-color: var(--blue);
  background-color: #ffffff;
  box-shadow: var(--shadow);
}

body[data-page="home"] .field:hover::after {
  transform: scaleX(1);
}

body[data-page="home"] .field:hover .field-icon {
  background-color: var(--blue);
  color: #ffffff;
}

body[data-page="home"] .field:hover .field-no {
  color: rgba(245, 153, 40, 0.45);
}

body[data-page="home"] .field:hover .field-name {
  color: var(--blue);
}

/* 末尾跨两列：定制方案 CTA */
body[data-page="home"] .field-cta {
  grid-column: span 2;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 4px;
  padding: 0 22px;
  border: 1px solid #d8e3f4;
  background-color: #eaf1fb;
}

body[data-page="home"] .field-cta:hover {
  transform: translateY(-3px);
  border-color: var(--blue);
  background-color: #ffffff;
  box-shadow: var(--shadow);
}

body[data-page="home"] .field-cta .field-cta-t1 {
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #6b7585;
}

body[data-page="home"] .field-cta .field-cta-t2 {
  font-size: 16px;
  font-weight: 800;
  color: var(--blue);
}

body[data-page="home"] .field-cta .field-cta-t3 {
  font-family: Consolas, "Courier New", monospace;
  font-size: 12.5px;
  color: var(--accent-dark);
}

/* 响应式 */
@media (max-width: 1024px) {
  body[data-page="home"] .field-layout {
    grid-template-columns: 1fr;
  }

  body[data-page="home"] .field-hero {
    padding: 28px 24px;
  }
}

@media (max-width: 640px) {
  body[data-page="home"] .field-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 96px;
    gap: 14px;
  }

  body[data-page="home"] .field {
    gap: 10px;
    padding: 0 12px;
  }

  body[data-page="home"] .field-icon {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  body[data-page="home"] .field-cta {
    grid-column: span 2;
  }
}

/* ---------- Logo 图片 ---------- */
.logo-img {
  display: block;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.footer-brand .logo-img {
  width: auto;
  max-width: 100%;
  filter: brightness(0) invert(1);
}

/* ---------- 首页布局调整 ---------- */
.header-inner {
  padding-block: 14px;
}

body[data-page="home"] .hero-grid {
  display: block;
}

body[data-page="home"] .hero-copy {
  max-width: 1400px;
  margin-inline: auto;
  text-align: center;
}

body[data-page="home"] .hero-desc {
  margin-inline: auto;
  max-width: none;
}

body[data-page="home"] .hero-actions {
  justify-content: center;
}

/* ---------- 导航下拉：我们的服务 ---------- */
.site-nav .nav-drop {
  position: static;
  padding-bottom: 36px;
  margin-bottom: -36px;
}

.site-nav ul.drop-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: grid;
  visibility: hidden;
  opacity: 0;
  transform: translateX(-50%) translateY(8px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0s linear 0.3s;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px 14px;
  width: min(880px, calc(100vw - 40px));
  padding: 16px 22px 20px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 0 0 12px 12px;
  box-shadow: var(--shadow-lg);
}

.site-nav ul.drop-menu li {
  list-style: none;
  margin: 0;
}

.site-nav ul.drop-menu a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: 8px;
  border-bottom: none;
}

.site-nav ul.drop-menu a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.site-nav .drop-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 6px;
  background-color: #e3edf9;
  transition: var(--transition);
}

.site-nav .drop-ico svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

.site-nav ul.drop-menu a:hover .drop-ico {
  background-color: var(--color-primary);
}

.site-nav ul.drop-menu a:hover .drop-ico svg {
  color: #ffffff;
}

@media (min-width: 901px) {
  .site-nav .nav-drop:hover ul.drop-menu {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
    transition: opacity 0.22s ease, transform 0.22s ease;
  }

  .site-nav .nav-drop:hover > a {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
  }
}

@media (max-width: 900px) {
  .site-nav .nav-drop {
    padding-bottom: 0;
    margin-bottom: 0;
  }

  .site-nav li.nav-drop > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .site-nav li.nav-drop > a::after {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: auto;
    margin-right: 4px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 7px solid var(--accent);
    transition: transform 0.2s ease;
  }

  .site-nav li.nav-drop.is-open > a::after {
    transform: rotate(180deg);
  }

  .site-nav .nav-drop.is-open ul.drop-menu {
    display: grid;
  }

  .site-nav ul.drop-menu {
    display: none;
    position: static;
    transform: none;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transition: none;
    width: auto;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px 10px;
    padding: 4px 0 8px 12px;
    border: none;
    border-radius: 0;
    box-shadow: none;
  }
}

@media (max-width: 640px) {
  .site-nav ul.drop-menu {
    grid-template-columns: 1fr;
  }
}


/* ---------- 领域 SVG 图标尺寸 ---------- */
body[data-page="home"] .field-icon svg {
  width: 22px;
  height: 22px;
}

body[data-page="home"] .field-hero-ico svg {
  width: 30px;
  height: 30px;
}

.site-nav .drop-ico svg {
  width: 15px;
  height: 15px;
}

@media (max-width: 640px) {
  body[data-page="home"] .field-icon svg {
    width: 20px;
    height: 20px;
  }
}


/* ---------- 首页板块美化 ---------- */
body[data-page="home"] .honor-img {
  aspect-ratio: 4 / 3;
}

body[data-page="home"] .honor-body {
  padding: 18px 20px 22px;
}

body[data-page="home"] .center {
  margin-top: 36px;
}

body[data-page="home"] .adv-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 26px 24px;
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--tr);
}

body[data-page="home"] .adv-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: var(--shadow);
}

body[data-page="home"] .adv-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 10px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  transition: var(--tr);
}

body[data-page="home"] .adv-ico svg {
  width: 22px;
  height: 22px;
}

body[data-page="home"] .adv-card:hover .adv-ico {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
}

body[data-page="home"] .adv-card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--heading);
}

body[data-page="home"] .adv-card p {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

body[data-page="home"] .news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

body[data-page="home"] .news-card {
  display: flex;
  flex-direction: column;
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--tr);
}

body[data-page="home"] .news-card:hover {
  transform: translateY(-5px);
  border-color: var(--blue-tint);
  box-shadow: var(--shadow);
}

body[data-page="home"] .news-card-img {
  display: block;
  aspect-ratio: 8 / 5;
  overflow: hidden;
}

body[data-page="home"] .news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

body[data-page="home"] .news-card:hover .news-card-img img {
  transform: scale(1.05);
}

body[data-page="home"] .news-card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px 22px;
}

body[data-page="home"] .news-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--muted);
}

body[data-page="home"] .news-card-meta .tag {
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue);
  background-color: var(--blue-tint);
  border-radius: 999px;
}

body[data-page="home"] .news-card h3 {
  font-size: 16.5px;
  font-weight: 800;
  line-height: 1.55;
}

body[data-page="home"] .news-card h3 a {
  color: var(--heading);
}

body[data-page="home"] .news-card h3 a:hover {
  color: var(--blue);
}

body[data-page="home"] .news-card-sum {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

body[data-page="home"] .faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(300px, 1fr);
  gap: 24px;
  align-items: stretch;
  max-width: none;
}

body[data-page="home"] .faq-list {
  max-width: none;
}

body[data-page="home"] .faq-aside {
  padding: 30px 28px;
}

@media (max-width: 1024px) {
  body[data-page="home"] .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  body[data-page="home"] .faq-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body[data-page="home"] .news-grid {
    grid-template-columns: 1fr;
  }
}


body[data-page="home"] .faq-wrap {
  align-items: stretch;
}

body[data-page="home"] .faq-list {
  width: 100%;
  max-width: none;
  margin: 0;
}

body[data-page="home"] .honor-img {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
}

body[data-page="home"] .honor-img img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  margin-inline: auto;
}


body[data-page="home"] .honor-img {
  padding: 14px 14px 0;
}

body[data-page="home"] .about-grid {
  align-items: stretch;
}

body[data-page="home"] .about-media {
  height: 100%;
}

body[data-page="home"] .about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 仪器简介文案（首页） ---------- */
body[data-page="home"] .eq-intro {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 图片点击查看大图（灯箱） ---------- */
img.has-lightbox {
  cursor: zoom-in;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background-color: rgba(7, 13, 32, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0s linear 0.3s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease;
  pointer-events: auto;
}

.lightbox-figure {
  max-width: min(1100px, 92vw);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lightbox-img {
  display: block;
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  text-align: center;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.85);
}

.lightbox-close {
  position: absolute;
  top: 22px;
  right: 26px;
  width: 44px;
  height: 44px;
  font-size: 24px;
  line-height: 1;
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-close:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

@media (max-width: 640px) {
  .lightbox {
    padding: 20px;
  }

  .lightbox-close {
    top: 14px;
    right: 14px;
  }
}


/* ---------- 灯箱上一个/下一个 ---------- */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  font-size: 26px;
  line-height: 1;
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.lightbox-nav:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.lightbox-prev {
  left: 26px;
}

.lightbox-next {
  right: 26px;
}

@media (max-width: 640px) {
  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }
}

/* ---------- 荣誉资质描述不换行 ---------- */
body[data-page="home"] .section[aria-labelledby="honor-title"] .sec-desc {
  max-width: none;
  white-space: nowrap;
}

@media (max-width: 900px) {
  body[data-page="home"] .section[aria-labelledby="honor-title"] .sec-desc {
    white-space: normal;
  }
}



/* ---------- FAQ 美化（首页） ---------- */
body[data-page="home"] .faq-list details {
  background-color: #ffffff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--tr);
}

body[data-page="home"] .faq-list details + details {
  margin-top: 14px;
}

body[data-page="home"] .faq-list details[open] {
  border-color: var(--blue);
  box-shadow: var(--shadow);
}

body[data-page="home"] .faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 56px 18px 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--heading);
  cursor: pointer;
  transition: var(--tr);
}

body[data-page="home"] .faq-item summary:hover {
  color: var(--blue);
}

body[data-page="home"] .faq-item summary::before {
  content: "Q";
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  background-color: var(--blue-tint);
  border-radius: 8px;
  transition: var(--tr);
}

body[data-page="home"] .faq-item[open] summary::before {
  color: #ffffff;
  background-color: var(--blue);
}

body[data-page="home"] .faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 17px;
  font-weight: 700;
  color: var(--blue);
  background-color: var(--blue-tint);
  border-radius: 50%;
  transform: translateY(-50%);
  transition: var(--tr);
}

body[data-page="home"] .faq-item[open] summary::after {
  content: "−";
  color: #ffffff;
  background-color: var(--blue);
}

body[data-page="home"] .faq-answer {
  padding: 0 22px 20px 60px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--muted);
}

body[data-page="home"] .faq-aside {
  position: relative;
  overflow: hidden;
  padding: 34px 30px 30px;
  border-radius: 14px;
  color: #ffffff;
  background:
    radial-gradient(320px 220px at 90% 0%, rgba(255, 255, 255, 0.16), transparent 60%),
    linear-gradient(165deg, var(--blue) 0%, var(--blue-deep) 100%);
  box-shadow: var(--shadow);
}

body[data-page="home"] .faq-aside h3 {
  font-size: 20px;
  font-weight: 900;
}

body[data-page="home"] .faq-aside p {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.85);
}

body[data-page="home"] .faq-aside .faq-aside-list {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px dashed rgba(255, 255, 255, 0.25);
}

body[data-page="home"] .faq-aside .faq-aside-list li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.88);
}

body[data-page="home"] .faq-aside .faq-aside-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: #ffce8a;
}

body[data-page="home"] .faq-aside .hotline {
  font-size: 30px;
  font-weight: 900;
  color: #ffce8a;
  margin-top: 18px;
}

body[data-page="home"] .faq-aside .note {
  font-family: Consolas, "Courier New", monospace;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 6px;
}


/* ---------- 仪器清单表格多端适配 ---------- */
.table-responsive {
  min-width: 720px;
}

.table-wrap {
  -webkit-overflow-scrolling: touch;
}

.table-responsive th:first-child,
.table-responsive td:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background-color: #ffffff;
}

.table-responsive thead th:first-child {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.table-responsive tbody tr:nth-child(even) td:first-child {
  background-color: var(--color-bg);
}

.table-responsive tbody tr:hover td:first-child {
  background-color: var(--color-primary-light);
}

@media (max-width: 760px) {
  .table-responsive {
    min-width: 0;
  }

  .table-responsive thead {
    display: none;
  }

  .table-responsive tbody tr {
    display: block;
    margin-bottom: 14px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    background-color: #ffffff;
  }

  .table-responsive td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 14px;
    padding: 8px 14px;
    border-bottom: 1px dashed var(--color-border);
    text-align: left;
  }

  .table-responsive td:last-child {
    border-bottom: none;
  }

  .table-responsive td::before {
    content: attr(data-label);
    flex-shrink: 0;
    font-weight: 700;
    color: var(--color-primary);
  }
}


/* ---------- 特殊资质三卡（荣誉页） ---------- */
body[data-page="home"] .special-card,
.special-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 28px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  transition: var(--tr);
}

.special-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.special-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.special-card:hover::before {
  transform: scaleX(1);
}

.special-img {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  padding: 10px;
  background-color: #f8fafd;
  border: 1px dashed #c9d8f0;
  border-radius: 10px;
  overflow: hidden;
}

.special-img img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.35s ease;
}

.special-card:hover .special-img img {
  transform: scale(1.04);
}

.special-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-heading);
}

.special-desc {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--color-text-light);
}

@media (max-width: 900px) {
  .grid-3 .special-card {
    grid-column: span 1;
  }
}


/* ---------- 检测服务流程（步骤样式） ---------- */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.flow-step {
  position: relative;
  text-align: center;
  padding: 0 10px;
}

.step-circle {
  position: relative;
  z-index: 1;
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: Consolas, "Courier New", monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  box-shadow: 0 8px 20px rgba(12, 31, 71, 0.25);
}

.flow-step::before {
  content: "";
  position: absolute;
  top: 32px;
  left: calc(-50% + 44px);
  right: calc(50% + 44px);
  border-top: 2px dashed var(--color-border);
}

.flow-step:first-child::before {
  display: none;
}

.flow-step h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--color-heading);
}

.flow-step p {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--color-text-light);
}

@media (max-width: 900px) {
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .flow-step::before {
    display: none;
  }
}

@media (max-width: 640px) {
  .flow-steps {
    grid-template-columns: 1fr;
  }
}

/* ---------- 企业文化（线条图标版） ---------- */
.culture-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  box-shadow: 0 8px 20px rgba(12, 31, 71, 0.25);
  transition: var(--transition);
}

.culture-ico svg {
  width: 26px;
  height: 26px;
}

.culture-card {
  transition: var(--transition);
}

.culture-card:hover .culture-ico {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  transform: translateY(-3px);
}


/* ---------- 企业文化面板（关于我们页） ---------- */
.culture-panel {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: 1400px;
  margin-inline: auto;
  padding: 56px 54px;
  border-radius: 16px;
  color: #ffffff;
  background:
    radial-gradient(420px 280px at 90% 0%, rgba(255, 255, 255, 0.16), transparent 60%),
    linear-gradient(165deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
  box-shadow: var(--shadow-md);
}

.culture-main .kicker {
  color: #ffce8a;
}

.culture-main .section-title {
  color: #ffffff;
}

.culture-quote {
  margin-top: 22px;
  font-size: 25px;
  font-weight: 800;
  line-height: 1.65;
  color: #ffffff;
}

.culture-mission-from {
  margin-top: 16px;
  font-size: 13.5px;
  color: #ffce8a;
}

.culture-side {
  display: grid;
  gap: 22px;
}

.culture-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.culture-item .culture-ico {
  width: 46px;
  height: 46px;
  margin: 0;
  flex-shrink: 0;
  border-radius: 10px;
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.culture-item h3 {
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
}

.culture-item p {
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.8);
}

@media (max-width: 1024px) {
  .culture-panel {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 30px;
  }
}


/* ---------- 简介资质徽章（关于我们页） ---------- */
.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.about-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border: 1px solid #d7e4f6;
  border-radius: 999px;
  transition: var(--transition);
}

.about-badge svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent-dark);
}

.about-badge:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}


/* ---------- 联系方式线条图标（关于我们页） ---------- */
.contact-item .contact-ico {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  box-shadow: 0 8px 20px rgba(12, 31, 71, 0.22);
  transition: var(--transition);
}

.contact-item .contact-ico svg {
  width: 24px;
  height: 24px;
}

.contact-item:hover .contact-ico {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}


/* ---------- 侧栏：咨询按钮 + 资质轮播（新闻列表页） ---------- */
.aside-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 12px;
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  border-radius: 10px;
  transition: var(--transition);
}

.aside-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(245, 153, 40, 0.4);
}

.aside-btn-ghost {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.aside-btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.22);
  box-shadow: none;
}

.hotline-note {
  margin-top: 12px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.75);
}

.aside-cert {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background-color: #eef2f9;
  border: 1px solid var(--color-border);
}

.aside-cert-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  background-color: #ffffff;
  cursor: zoom-in;
  transition: transform 0.35s ease;
}

.aside-cert:hover .aside-cert-img {
  transform: scale(1.03);
}

.aside-cert-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.aside-cert-nav:hover {
  color: var(--color-accent-dark);
  transform: translateY(-50%) scale(1.12);
}

.aside-cert-prev {
  left: 10px;
}

.aside-cert-next {
  right: 10px;
}

.aside-cert-cap {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  color: var(--color-white);
  background-color: rgba(12, 31, 71, 0.65);
  padding: 3px 10px;
  border-radius: 999px;
}

.aside-cert-note {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--color-text-light);
}

.aside-cert-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-primary);
}

.aside-cert-more:hover {
  color: var(--color-accent-dark);
}


/* ---------- 侧栏滚动吸附 ---------- */
.page-aside {
  position: sticky;
  top: 90px;
  align-self: start;
}

/* ---------- 仪器设备区（全局版，供列表页等使用） ---------- */
.eq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.eq-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: var(--tr);
}

.eq-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.eq-img {
  aspect-ratio: 8 / 5;
  overflow: hidden;
}

.eq-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.eq-card:hover .eq-img img {
  transform: scale(1.05);
}

.eq-body {
  padding: 18px 22px 22px;
}

.eq-body h3 {
  font-size: 18px;
  color: var(--heading);
}

.eq-model {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .eq-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .eq-grid { grid-template-columns: 1fr; }
}


/* ---------- 内页区块标题美化（section-head，仅内页） ---------- */
body:not([data-page="home"]) .section-head {
  position: relative;
  margin-bottom: 44px;
  padding-left: 22px;
  max-width: none;
  text-align: left;
}

body:not([data-page="home"]) .section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

body:not([data-page="home"]) .section-head .kicker {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 8px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent-dark);
  background-color: var(--color-primary-light);
  padding: 5px 14px;
  border-radius: 999px;
}

body:not([data-page="home"]) .section-head .section-title {
  font-size: 30px;
  font-weight: 900;
  color: var(--color-heading);
}

body:not([data-page="home"]) .section-head .section-desc {
  margin-top: 12px;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-light);
}


/* ---------- 最新文章五卡（内容页） ---------- */
.news-five {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.nf-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.nf-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.nf-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.nf-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.nf-card:hover .nf-img img {
  transform: scale(1.05);
}

.nf-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px 18px;
}

.nf-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-light);
}

.nf-meta .tag {
  padding: 2px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: 999px;
}

.nf-title {
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--color-heading);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}



/* 文字版五卡（首页科技文章）：无图，标题 + 简介 */
.nf-card-text .nf-body {
  flex: 1;
  gap: 10px;
  padding: 18px 18px 20px;
}

.nf-card-text .nf-summary {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


.nf-title a {
  color: inherit;
}

.nf-title a:hover {
  color: var(--color-primary);
}

@media (max-width: 1200px) {
  .news-five {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .news-five {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .news-five {
    grid-template-columns: 1fr;
  }
}


/* ---------- 荣誉页 banner 视频背景（桌面视频+遮罩，移动端纯色） ---------- */
.page-hero-media {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 520px;
}

.page-hero-media .container {
  position: relative;
  z-index: 2;
  width: 100%;
}

.page-hero-media .page-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.page-hero-media .page-hero-video-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(24, 56, 138, 0.85), rgba(6, 26, 58, 0.8));
}

.page-hero-media .container {
  position: relative;
  z-index: 2;
}

@media (max-width: 900px) {
  .page-hero-media .page-hero-video,
  .page-hero-media .page-hero-video-overlay {
    display: none;
  }
}


/* ---------- VR 实验室（关于我们页） ---------- */
.vr-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  color: #ffffff;
  background:
    radial-gradient(600px 300px at 70% 20%, rgba(255, 255, 255, 0.14), transparent 60%),
    linear-gradient(165deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
  box-shadow: var(--shadow-md);
}

.vr-iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.vr-play {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: #ffffff;
  background-color: rgba(7, 13, 32, 0.35);
  border: none;
  cursor: pointer;
  transition: background-color 0.25s ease;
}

.vr-play:hover {
  background-color: rgba(7, 13, 32, 0.15);
}

.vr-play-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.16);
  border: 2px solid rgba(255, 255, 255, 0.65);
  transition: transform 0.25s ease;
}

.vr-play:hover .vr-play-icon {
  transform: scale(1.08);
}

.vr-play-icon::after {
  content: "";
  margin-left: 7px;
  border-style: solid;
  border-width: 15px 0 15px 25px;
  border-color: transparent transparent transparent #ffffff;
}

.vr-play-text {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.vr-frame.is-playing .vr-play {
  display: none;
}

@media (max-width: 640px) {
  .vr-frame {
    aspect-ratio: 4 / 3;
  }

  .vr-play-icon {
    width: 68px;
    height: 68px;
  }
}


/* ---------- VR 标题徽标与渐变标题 ---------- */
body[data-page="about"] .vr-head .section-title {
  font-size: 34px;
  background: linear-gradient(120deg, var(--color-heading) 30%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- VR 加载态：点击后保留背景 + 加载动效 ---------- */
.vr-frame.is-playing .vr-play {
  background:
    radial-gradient(600px 300px at 70% 20%, rgba(255, 255, 255, 0.14), transparent 60%),
    linear-gradient(165deg, var(--color-primary) 0%, var(--color-primary-deep) 100%);
  cursor: default;
}

.vr-frame.is-playing .vr-play-icon {
  border-width: 3px;
  border-color: rgba(255, 255, 255, 0.22);
  border-top-color: #ffffff;
  animation: vr-spin 0.9s linear infinite;
}

.vr-frame.is-playing .vr-play-icon::after {
  display: none;
}

.vr-frame.is-playing .vr-play-text {
  letter-spacing: 0.14em;
}

@keyframes vr-spin {
  to {
    transform: rotate(360deg);
  }
}

/* 加载完成：淡出覆盖层，露出 VR 全景 */
.vr-frame.is-loaded .vr-play {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0s linear 0.5s;
}


/* ---------- 关于我们页 banner 继续加大 ---------- */
.page-hero-tall {
  min-height: 640px;
}

@media (max-width: 900px) {
  .page-hero-tall {
    min-height: 480px;
  }
}


/* ---------- 关于我们页 banner 首屏高度 ---------- */
body[data-page="about"] .page-hero-tall {
  min-height: 100vh;
}

@media (max-width: 900px) {
  body[data-page="about"] .page-hero-tall {
    min-height: 320px;
  }
}


/* ---------- 荣誉资质页 banner 移动端高度 ---------- */
@media (max-width: 900px) {
  body[data-page="honors"] .page-hero-media {
    min-height: 320px;
  }
}


/* ---------- 首页首屏视频背景 ---------- */
body[data-page="home"] .hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

body[data-page="home"] .hero-video-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(130deg, rgba(24, 56, 131, 0.55) 0%, rgba(18, 44, 102, 0.48) 55%, rgba(6, 26, 58, 0.52) 100%);
}

@media (max-width: 900px) {
  body[data-page="home"] .hero-video,
  body[data-page="home"] .hero-video-overlay {
    display: none;
  }
}



/* ---------- 页脚二维码（关注我们） ---------- */
.footer-qr {
  margin-top: 44px;
  padding-top: 32px;
  border-top: 1px solid rgba(148, 163, 184, 0.2);
}

.footer-qr .footer-title {
  margin-bottom: 20px;
}

.footer-qr-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  list-style: none;
}

.footer-qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 14px 12px 12px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 14px;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.footer-qr-item:hover {
  transform: translateY(-4px);
  border-color: rgba(148, 163, 184, 0.45);
  background: rgba(148, 163, 184, 0.14);
}

.footer-qr-img {
  display: block;
  width: 100%;
  max-width: 140px;
  aspect-ratio: 1;
  padding: 8px;
  background: #ffffff;
  border-radius: 10px;
}

.footer-qr-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-qr-name {
  font-size: 13px;
  color: #cbd5e1;
}

@media (max-width: 900px) {
  .footer-qr {
    display: none;
  }
}

@media (max-width: 1024px) {
  .footer-qr-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .footer-qr-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}