/* ============================================================
   人工智能应用工程师证书综合信息服务平台 — 全局样式
   设计基调：专业考试信息门户 / 政务秩序感 / 克制科技感
   ============================================================ */

/* 横向溢出防护（消除滚动条出现引起的位移） */
html, body { overflow-x: hidden; }

:root {
  --c-primary: #0B3A82;
  --c-primary-dark: #082C64;
  --c-blue: #1769D1;
  --c-blue-light: #EAF3FF;
  --c-cyan: #0E9F9F;
  --c-text: #1F2937;
  --c-text-2: #667085;
  --c-text-3: #98A2B3;
  --c-border: #E6EAF0;
  --c-bg: #F7F9FC;
  --c-white: #FFFFFF;
  --c-red: #C0392B;
  --c-green: #1E7E4B;
  --c-orange: #B45309;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, .08);
  --radius: 8px;
  --radius-lg: 12px;
  --font: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --wrap: 1240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; }
.container { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-weight: 600; line-height: 1.35; color: var(--c-text); }

/* ---------- 顶部信息栏 ---------- */
.topbar {
  background: var(--c-primary-dark);
  color: rgba(255, 255, 255, .85);
  font-size: 12.5px;
  height: 36px;
  line-height: 36px;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar a { color: rgba(255, 255, 255, .85); }
.topbar a:hover { color: #fff; }
.topbar-links { display: flex; gap: 20px; }

/* ---------- 头部 ---------- */
.site-header { background: var(--c-white); border-bottom: 1px solid var(--c-border); }
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 18px; padding-bottom: 18px; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 10px;
  background: var(--c-primary); color: #fff;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.brand-name { font-size: 20px; font-weight: 600; color: var(--c-primary); letter-spacing: .5px; }
.brand-sub { font-size: 12px; color: var(--c-text-2); margin-top: 2px; }

/* 搜索 */
.header-search { display: flex; width: 320px; max-width: 100%; }
.header-search input {
  flex: 1; height: 38px; border: 1px solid var(--c-border); border-right: 0;
  border-radius: 6px 0 0 6px; padding: 0 12px; outline: none; font-size: 13.5px;
  background: var(--c-bg);
}
.header-search input:focus { border-color: var(--c-blue); background: #fff; }
.header-search button {
  width: 76px; height: 38px; border: 0; border-radius: 0 6px 6px 0;
  background: var(--c-blue); color: #fff; cursor: pointer; font-size: 13.5px;
}
.header-search button:hover { background: var(--c-primary); }

/* ---------- 主导航 ---------- */
.main-nav { background: var(--c-primary); position: relative; z-index: 50; }
.main-nav .container { display: flex; align-items: center; }
.nav-list { display: flex; width: 100%; }
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: block; padding: 0 26px; height: 52px; line-height: 52px;
  color: rgba(255, 255, 255, .92); font-size: 15.5px; font-weight: 500; white-space: nowrap;
}
.nav-list > li > a:hover, .nav-list > li.active > a { background: var(--c-primary-dark); color: #fff; }
.nav-list > li.has-sub > a::after {
  content: ""; display: inline-block; margin-left: 6px; vertical-align: 3px;
  border: 4px solid transparent; border-top-color: rgba(255, 255, 255, .7);
}
.sub-menu {
  position: absolute; top: 100%; left: 0; min-width: 168px;
  background: #fff; border: 1px solid var(--c-border); border-top: 2px solid var(--c-blue);
  box-shadow: var(--shadow-md); border-radius: 0 0 6px 6px;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: all .18s ease; padding: 6px 0;
}
.nav-list > li:hover .sub-menu, .nav-list > li:focus-within .sub-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.sub-menu a { display: block; padding: 9px 18px; font-size: 14px; color: var(--c-text); }
.sub-menu a:hover { background: var(--c-blue-light); color: var(--c-blue); }

/* 汉堡按钮 */
.nav-toggle {
  display: none; width: 44px; height: 44px; margin: 4px 0;
  background: transparent; border: 1px solid rgba(255,255,255,.4);
  border-radius: 6px; cursor: pointer; position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px;
  background: #fff; transition: .25s;
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span::after { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(115deg, #0A3372 0%, #0B3A82 55%, #10488F 100%);
  color: #fff; position: relative; overflow: hidden;
}
.hero .container {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px;
  align-items: center; min-height: 460px; padding-top: 48px; padding-bottom: 48px;
}
.hero-tag {
  display: inline-block; font-size: 13px; letter-spacing: 2px;
  border: 1px solid rgba(255,255,255,.35); border-radius: 999px;
  padding: 4px 16px; color: rgba(255,255,255,.85); margin-bottom: 20px;
}
.hero h1 { font-size: 42px; color: #fff; letter-spacing: 2px; margin-bottom: 14px; }
.hero-sub { font-size: 19px; color: rgba(255,255,255,.92); margin-bottom: 16px; font-weight: 500; }
.hero-desc { font-size: 14.5px; color: rgba(255,255,255,.72); max-width: 520px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 28px; border-radius: 6px; font-size: 15px;
  font-weight: 500; cursor: pointer; border: 1px solid transparent; transition: all .2s ease;
}
.btn-primary { background: #fff; color: var(--c-primary); }
.btn-primary:hover { background: var(--c-blue-light); transform: translateY(-1px); }
.btn-outline { border-color: rgba(255,255,255,.55); color: #fff; background: transparent; }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-blue { background: var(--c-blue); color: #fff; }
.btn-blue:hover { background: var(--c-primary); }
.hero-visual { display: flex; justify-content: center; align-items: center; }

/* ---------- 通用区块 ---------- */
.section { padding: 64px 0; }
.section-gray { background: var(--c-bg); }
.section-head { text-align: center; margin-bottom: 40px; }
.section-title { font-size: 28px; letter-spacing: 1px; position: relative; display: inline-block; padding-bottom: 14px; }
.section-title::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 44px; height: 3px; background: var(--c-blue); border-radius: 2px;
}
.section-desc { color: var(--c-text-2); margin-top: 12px; font-size: 14.5px; }

/* ---------- 快捷入口 ---------- */
.quick-entry { background: #fff; }
.quick-entry .container { margin-top: -44px; position: relative; z-index: 5; }
.quick-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px;
  background: var(--c-border); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md);
}
.quick-item {
  background: #fff; padding: 26px 14px 22px; text-align: center;
  transition: all .2s ease; display: block;
}
.quick-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); z-index: 2; position: relative; }
.quick-icon {
  width: 48px; height: 48px; margin: 0 auto 12px; border-radius: 10px;
  background: var(--c-blue-light); color: var(--c-blue);
  display: flex; align-items: center; justify-content: center;
}
.quick-item:hover .quick-icon { background: var(--c-blue); color: #fff; }
.quick-name { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.quick-txt { font-size: 12.5px; color: var(--c-text-2); line-height: 1.5; }

/* ---------- 最新动态 ---------- */
.news-layout { display: grid; grid-template-columns: 420px 1fr; gap: 32px; }
.news-feature {
  border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  overflow: hidden; background: #fff; display: flex; flex-direction: column;
}
.news-feature-cover {
  background: linear-gradient(120deg, #0B3A82, #1769D1);
  color: #fff; padding: 34px 26px; min-height: 168px;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.news-feature-cover .tag {
  align-self: flex-start; font-size: 12px; background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.35); padding: 2px 10px; border-radius: 999px; margin-bottom: 12px;
}
.news-feature-cover h3 { color: #fff; font-size: 19px; line-height: 1.5; }
.news-feature-body { padding: 18px 24px 22px; flex: 1; }
.news-feature-body p { color: var(--c-text-2); font-size: 14px; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-feature-body .meta { font-size: 12.5px; color: var(--c-text-3); }
.news-list li { border-bottom: 1px dashed var(--c-border); }
.news-list li:last-child { border-bottom: 0; }
.news-list a {
  display: flex; align-items: baseline; gap: 12px; padding: 13px 4px; font-size: 15px;
}
.news-list a:hover .t { color: var(--c-blue); }
.news-list .cat {
  flex-shrink: 0; font-size: 12px; color: var(--c-blue); background: var(--c-blue-light);
  border-radius: 4px; padding: 1px 8px;
}
.news-list .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-list .date { flex-shrink: 0; font-size: 13px; color: var(--c-text-3); }
.more-link { color: var(--c-blue); font-size: 14px; display: inline-flex; align-items: center; gap: 4px; }
.more-link:hover { color: var(--c-primary); }

/* ---------- 报考专区卡片 ---------- */
.guide-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.guide-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 30px 26px; transition: all .2s ease; display: block;
}
.guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #C7DBF7; }
.guide-card .num { font-size: 13px; color: var(--c-text-3); letter-spacing: 1px; }
.guide-card h3 { font-size: 18px; margin: 8px 0 10px; }
.guide-card p { font-size: 13.5px; color: var(--c-text-2); min-height: 44px; }
.guide-card .go { margin-top: 14px; font-size: 13.5px; color: var(--c-blue); display: inline-flex; gap: 6px; align-items: center; }

/* ---------- 等级体系 ---------- */
.level-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.level-card {
  background: #fff; border: 1px solid var(--c-border); border-top: 4px solid var(--c-blue);
  border-radius: var(--radius-lg); padding: 32px 28px; position: relative;
}
.level-card.lv-1 { border-top-color: #5B9BEC; }
.level-card.lv-2 { border-top-color: var(--c-blue); }
.level-card.lv-3 { border-top-color: var(--c-primary); }
.level-badge {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--c-blue);
  background: var(--c-blue-light); padding: 3px 14px; border-radius: 999px; margin-bottom: 14px;
}
.level-card h3 { font-size: 20px; margin-bottom: 6px; }
.level-card .lv-sub { color: var(--c-text-2); font-size: 14px; margin-bottom: 16px; }
.level-card ul li { font-size: 13.5px; color: var(--c-text-2); padding: 6px 0 6px 18px; position: relative; border-bottom: 1px dashed var(--c-border); }
.level-card ul li:last-child { border-bottom: 0; }
.level-card ul li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 6px; height: 6px; border-radius: 50%; background: var(--c-blue); }
.level-arrow { display: none; }

/* ---------- 能力体系 ---------- */
.ability-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.ability-item {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 26px 18px; text-align: center; transition: all .2s ease;
}
.ability-item:hover { border-color: var(--c-blue); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ability-item .idx { font-size: 13px; color: var(--c-text-3); letter-spacing: 2px; }
.ability-item h3 { font-size: 16.5px; margin: 10px 0 8px; }
.ability-item p { font-size: 12.5px; color: var(--c-text-2); line-height: 1.6; }

/* ---------- 证书价值 ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card {
  background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 34px 28px; text-align: center;
}
.value-card .v-icon {
  width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--c-blue-light); color: var(--c-blue);
  display: flex; align-items: center; justify-content: center;
}
.value-card h3 { font-size: 18px; margin-bottom: 10px; }
.value-card p { font-size: 13.5px; color: var(--c-text-2); }

/* ---------- 产业资讯 ---------- */
.industry-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.industry-col { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 24px; }
.industry-col > h3 {
  font-size: 17px; padding-bottom: 12px; border-bottom: 2px solid var(--c-blue);
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px;
}
.industry-col > h3 .more-link { font-size: 12.5px; font-weight: 400; }
.industry-col li a { display: flex; gap: 10px; padding: 10px 0; font-size: 14px; border-bottom: 1px dashed var(--c-border); }
.industry-col li:last-child a { border-bottom: 0; }
.industry-col li a .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.industry-col li a:hover .t { color: var(--c-blue); }
.industry-col li a .date { color: var(--c-text-3); font-size: 12.5px; flex-shrink: 0; }

/* ---------- 学习中心 ---------- */
.study-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.study-card {
  display: flex; gap: 16px; align-items: flex-start; background: #fff;
  border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 26px;
  transition: all .2s ease;
}
.study-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #C7DBF7; }
.study-card .s-icon {
  width: 46px; height: 46px; flex-shrink: 0; border-radius: 10px;
  background: var(--c-blue-light); color: var(--c-blue);
  display: flex; align-items: center; justify-content: center;
}
.study-card h3 { font-size: 16.5px; margin-bottom: 6px; }
.study-card p { font-size: 13px; color: var(--c-text-2); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; background: none; border: 0; cursor: pointer; text-align: left;
  font-size: 15.5px; font-weight: 500; color: var(--c-text);
}
.faq-q:hover { color: var(--c-blue); }
.faq-q .arrow { flex-shrink: 0; width: 10px; height: 10px; border-right: 2px solid var(--c-text-3); border-bottom: 2px solid var(--c-text-3); transform: rotate(45deg); transition: transform .2s ease; }
.faq-item.open .faq-q { color: var(--c-blue); }
.faq-item.open .faq-q .arrow { transform: rotate(-135deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .25s ease; }
.faq-a-inner { padding: 0 22px 20px; color: var(--c-text-2); font-size: 14px; border-top: 1px dashed var(--c-border); padding-top: 14px; margin: 0 22px 20px; padding-left: 0; padding-right: 0; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0A2A5E; color: rgba(255,255,255,.72); margin-top: 0; }
.footer-main { padding: 52px 0 36px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 32px; }
.footer-brand .brand-name { color: #fff; font-size: 18px; }
.footer-brand p { font-size: 13px; margin-top: 12px; line-height: 1.8; color: rgba(255,255,255,.6); }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { font-size: 13.5px; color: rgba(255,255,255,.68); }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 18px 0; font-size: 12.5px; color: rgba(255,255,255,.5); }
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; }
.footer-bottom a { color: rgba(255,255,255,.5); margin-left: 16px; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed; right: 28px; bottom: 40px; width: 44px; height: 44px;
  border-radius: 8px; background: var(--c-primary); color: #fff; border: 0; cursor: pointer;
  box-shadow: var(--shadow-md); opacity: 0; visibility: hidden; transition: all .25s ease; z-index: 90;
  display: flex; align-items: center; justify-content: center;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--c-blue); }

/* ---------- 面包屑 & 内页 ---------- */
.page-banner { background: linear-gradient(115deg, #0A3372, #0B3A82 60%, #10488F); color: #fff; padding: 44px 0; }
.page-banner h1 { color: #fff; font-size: 30px; letter-spacing: 1px; }
.page-banner .p-desc { color: rgba(255,255,255,.75); font-size: 14px; margin-top: 8px; }
.breadcrumb { font-size: 13px; color: var(--c-text-2); padding: 14px 0; }
.breadcrumb a { color: var(--c-text-2); }
.breadcrumb a:hover { color: var(--c-blue); }
.breadcrumb .sep { margin: 0 8px; color: var(--c-text-3); }
.page-banner .breadcrumb { padding: 0 0 10px; color: rgba(255,255,255,.7); }
.page-banner .breadcrumb a { color: rgba(255,255,255,.75); }
.page-banner .breadcrumb a:hover { color: #fff; }
.page-banner .breadcrumb .sep { color: rgba(255,255,255,.4); }

.page-body { padding: 48px 0 72px; }
.layout-with-side { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
.side-menu { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; position: sticky; top: 24px; }
.side-menu h3 { background: var(--c-primary); color: #fff; font-size: 15.5px; padding: 14px 20px; }
.side-menu a { display: block; padding: 12px 20px; font-size: 14px; border-bottom: 1px solid var(--c-border); color: var(--c-text); }
.side-menu a:last-child { border-bottom: 0; }
.side-menu a:hover, .side-menu a.active { color: var(--c-blue); background: var(--c-blue-light); }

/* ---------- 文章列表 ---------- */
.article-list { background: #fff; }
.article-item { border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 24px 26px; margin-bottom: 18px; display: block; transition: all .2s ease; }
.article-item:hover { box-shadow: var(--shadow-md); border-color: #C7DBF7; }
.article-item .a-top { display: flex; gap: 10px; align-items: center; margin-bottom: 8px; }
.article-item h3 { font-size: 18px; flex: 1; }
.article-item:hover h3 { color: var(--c-blue); }
.article-item .a-desc { color: var(--c-text-2); font-size: 14px; margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-item .a-meta { display: flex; gap: 16px; font-size: 12.5px; color: var(--c-text-3); }
.tag-cat { font-size: 12px; color: var(--c-blue); background: var(--c-blue-light); padding: 1px 10px; border-radius: 4px; }

/* ---------- 文章详情 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 280px; gap: 40px; align-items: start; }
.article-main { max-width: 820px; }
.article-title { font-size: 28px; line-height: 1.45; margin-bottom: 14px; }
.article-meta { font-size: 13px; color: var(--c-text-3); padding-bottom: 18px; border-bottom: 1px solid var(--c-border); margin-bottom: 26px; display: flex; gap: 18px; flex-wrap: wrap; }
.article-content { font-size: 15px; color: #333; }
.article-content h2 { font-size: 20px; margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--c-blue); }
.article-content h3 { font-size: 16.5px; margin: 24px 0 10px; }
.article-content p { margin-bottom: 14px; color: #3A4453; }
.article-content ul, .article-content ol { margin: 0 0 14px 22px; list-style: disc; color: #3A4453; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 6px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 16px 0 22px; font-size: 14px; }
.article-content th, .article-content td { border: 1px solid var(--c-border); padding: 10px 14px; text-align: left; }
.article-content th { background: var(--c-bg); font-weight: 600; }
.article-nav { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--c-border); margin-top: 40px; padding-top: 20px; font-size: 14px; }
.article-nav a { color: var(--c-text-2); max-width: 48%; }
.article-nav a:hover { color: var(--c-blue); }
.rel-side { position: sticky; top: 24px; }
.side-box { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 20px; margin-bottom: 22px; }
.side-box h3 { font-size: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--c-blue); margin-bottom: 6px; }
.side-box li a { display: block; padding: 9px 0; font-size: 13.5px; color: var(--c-text-2); border-bottom: 1px dashed var(--c-border); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.side-box li:last-child a { border-bottom: 0; }
.side-box li a:hover { color: var(--c-blue); }

/* GEO 核心结论块 */
.geo-block { background: var(--c-blue-light); border: 1px solid #C7DBF7; border-radius: var(--radius-lg); padding: 22px 26px; margin: 26px 0; }
.geo-block h3 { font-size: 15.5px; color: var(--c-primary); margin-bottom: 8px; }
.geo-block .geo-conclusion { font-size: 15px; font-weight: 600; color: var(--c-text); margin-bottom: 6px; }
.geo-block .geo-detail { font-size: 13.5px; color: var(--c-text-2); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--c-border); border-radius: var(--radius-lg); background: #fff; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 720px; }
table.data-table th, table.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--c-border); text-align: left; white-space: nowrap; }
table.data-table thead th { background: var(--c-primary); color: #fff; font-weight: 500; }
table.data-table tbody tr:hover { background: var(--c-bg); }
.status { display: inline-block; font-size: 12.5px; padding: 2px 12px; border-radius: 999px; }
.status-soon { color: var(--c-orange); background: #FDF3E7; }
.status-open { color: var(--c-green); background: #E8F5EE; }
.status-closed { color: var(--c-text-2); background: #F0F2F5; }
.status-done { color: var(--c-text-3); background: #F7F8FA; }

/* ---------- 步骤流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin: 24px 0; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); padding: 20px 14px; text-align: center; position: relative; }
.step::before {
  counter-increment: step; content: counter(step); display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; margin: 0 auto 10px; border-radius: 50%;
  background: var(--c-blue); color: #fff; font-size: 14px; font-weight: 600;
}
.step h4 { font-size: 14.5px; margin-bottom: 4px; }
.step p { font-size: 12px; color: var(--c-text-2); }

/* ---------- 证书查询 ---------- */
.query-hero { max-width: 640px; margin: 0 auto; text-align: center; }
.query-box { display: flex; gap: 0; margin: 28px 0 16px; box-shadow: var(--shadow-md); border-radius: 8px; overflow: hidden; }
.query-box input { flex: 1; height: 52px; border: 1px solid var(--c-border); border-right: 0; padding: 0 18px; font-size: 15px; outline: none; border-radius: 8px 0 0 8px; }
.query-box input:focus { border-color: var(--c-blue); }
.query-box button { width: 140px; height: 52px; border: 0; background: var(--c-blue); color: #fff; font-size: 16px; cursor: pointer; border-radius: 0 8px 8px 0; }
.query-box button:hover { background: var(--c-primary); }
.query-note { font-size: 13px; color: var(--c-text-2); }
.query-result { max-width: 640px; margin: 24px auto 0; display: none; }
.query-result.show { display: block; }
.notice-card { background: #FFFBEB; border: 1px solid #F5E2B8; border-radius: var(--radius); padding: 16px 20px; font-size: 13.5px; color: #7A5B17; text-align: left; }

/* ---------- FAQ 页 ---------- */
.faq-layout { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
.faq-search { margin-bottom: 22px; display: flex; }
.faq-search input { flex: 1; height: 44px; border: 1px solid var(--c-border); border-right: 0; border-radius: 6px 0 0 6px; padding: 0 14px; outline: none; }
.faq-search input:focus { border-color: var(--c-blue); }
.faq-search button { width: 90px; border: 0; border-radius: 0 6px 6px 0; background: var(--c-blue); color: #fff; cursor: pointer; }
.faq-empty { display: none; text-align: center; color: var(--c-text-2); padding: 40px 0; }

/* ---------- 本页导航（右侧固定目录） ---------- */
.toc-layout { display: grid; grid-template-columns: 1fr 200px; gap: 40px; align-items: start; }
.toc { position: sticky; top: 24px; background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 18px; }
.toc h4 { font-size: 14px; color: var(--c-text-2); margin-bottom: 8px; }
.toc a { display: block; font-size: 13px; color: var(--c-text-2); padding: 6px 0 6px 12px; border-left: 2px solid var(--c-border); }
.toc a:hover, .toc a.active { color: var(--c-blue); border-left-color: var(--c-blue); }
.doc-section { margin-bottom: 36px; scroll-margin-top: 24px; }
.doc-section h2 { font-size: 21px; padding-left: 12px; border-left: 4px solid var(--c-blue); margin-bottom: 14px; }
.doc-section h3 { font-size: 16px; margin: 18px 0 8px; }
.doc-section p, .doc-section li { font-size: 14.5px; color: #3A4453; }
.doc-section ul, .doc-section ol { margin: 8px 0 14px 22px; list-style: disc; }
.doc-section ol { list-style: decimal; }
.doc-section li { margin-bottom: 6px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .ability-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  .header-search { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav .container { flex-wrap: wrap; }
  .nav-list { display: none; flex-direction: column; width: 100%; padding-bottom: 10px; }
  .nav-list.open { display: flex; }
  .nav-list > li > a { height: 46px; line-height: 46px; padding: 0 16px; }
  .sub-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    border: 0; border-top: 0; display: none; background: rgba(255,255,255,.06); border-radius: 0; }
  .nav-list > li.sub-open .sub-menu { display: block; }
  .sub-menu a { color: rgba(255,255,255,.85); padding-left: 32px; }
  .sub-menu a:hover { background: rgba(255,255,255,.08); color: #fff; }
  .hero .container { grid-template-columns: 1fr; min-height: 0; gap: 28px; padding-top: 40px; }
  .hero h1 { font-size: 30px; }
  .hero-visual svg { width: 100%; max-width: 460px; height: auto; }
  .guide-grid, .level-grid, .value-grid, .industry-cols, .study-grid { grid-template-columns: 1fr; }
  .layout-with-side, .faq-layout, .toc-layout, .article-layout { grid-template-columns: 1fr; }
  .side-menu, .toc, .rel-side { position: static; }
  .section { padding: 44px 0; }
  .section-title { font-size: 23px; }
  .article-title { font-size: 22px; }
  .page-banner h1 { font-size: 24px; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .topbar-links { gap: 12px; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .ability-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .news-list .t { white-space: normal; }
  .query-box { flex-direction: column; }
  .query-box input { border-right: 1px solid var(--c-border); border-radius: 8px 8px 0 0; }
  .query-box button { width: 100%; border-radius: 0 0 8px 8px; }
  .article-nav { flex-direction: column; }
  .article-nav a { max-width: 100%; }
  .back-top { right: 16px; bottom: 20px; }
}


/* ===== 咨询与报名组件（aiapp 设计体系 · 2026-09-19） ===== */
.foot-contact{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:30px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);}
.foot-contact .fc-label{font-size:13.5px;color:rgba(255,255,255,.72);letter-spacing:.4px;}
.foot-contact a.fc-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;
  border-radius:6px;font-size:14px;font-weight:500;background:#fff;color:var(--c-primary);transition:all .15s;}
.foot-contact a.fc-btn:hover{background:var(--c-blue-light);text-decoration:none;transform:translateY(-1px);}
.foot-contact a.fc-btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.foot-contact a.fc-btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.foot-contact a.fc-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.foot-note{margin-top:14px;color:rgba(255,255,255,.5);font-size:12.5px;line-height:1.8;}
/* 悬浮客服（上移，避让 back-top） */
.float-contact{position:fixed;right:28px;bottom:96px;z-index:120;display:flex;flex-direction:column;align-items:flex-end;gap:10px;font-size:14px;}
.fc-toggle{width:44px;height:44px;border-radius:8px;background:var(--c-primary);border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:background .15s,transform .15s;}
.fc-toggle:hover{background:var(--c-blue);transform:translateY(-1px);}
.fc-toggle svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.fc-panel{display:none;background:#fff;border:1px solid var(--c-border);border-radius:8px;
  box-shadow:var(--shadow-md);padding:14px;width:216px;}
.float-contact.open .fc-panel{display:block;}
.fc-panel .fc-title{font-size:13px;color:#667085;margin-bottom:10px;text-align:center;}
.fc-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;color:var(--c-text);
  margin-bottom:8px;border:1px solid var(--c-border);transition:all .15s;}
.fc-item:last-of-type{margin-bottom:0;}
.fc-item:hover{background:#F6F9FF;text-decoration:none;border-color:var(--c-primary);}
.fc-item svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:var(--c-primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.fc-item b{font-size:14px;}
.fc-item small{display:block;color:#667085;font-size:12px;font-weight:400;}
.fc-close{width:100%;background:none;border:none;color:#667085;font-size:12.5px;cursor:pointer;padding:6px 0 0;}
.fc-close:hover{color:var(--c-text);}
@media (max-width:768px){
  .foot-contact{gap:10px;margin-top:22px;padding-top:20px;}
  .foot-contact a.fc-btn{height:36px;padding:0 14px;font-size:13px;}
  .float-contact{right:16px;bottom:78px;}
  .fc-toggle{width:40px;height:40px;}
}


/* ===== 文章页样式（aiapp 设计体系 · 2026-09-19） ===== */
.article-body{max-width:820px;margin:0 auto;padding:0 0 8px;font-size:16px;line-height:1.9;color:var(--c-text);}
.article-body h1{font-size:26px !important;line-height:1.5;color:var(--c-primary);margin:8px 0 22px;font-weight:700;letter-spacing:.3px;}
.article-body h2{font-size:19px !important;line-height:1.6;color:var(--c-primary);margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--c-blue);font-weight:600;}
.article-body h3{font-size:17px;margin:24px 0 10px;color:var(--c-text);font-weight:600;}
.article-body p{margin:0 0 16px;font-size:16px !important;line-height:1.9 !important;color:var(--c-text) !important;}
.article-body strong{color:var(--c-primary-dark,#0B3A82);font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--c-border,#E5EAF3);padding:10px 12px;text-align:left;line-height:1.7;}
.article-body th{background:#F2F7FF;color:var(--c-primary);font-weight:600;}
.article-body .art-note{background:#F2F7FF;border-left:4px solid var(--c-blue);border-radius:6px;padding:14px 16px;margin:16px 0;}
.article-body .art-note p{margin:0;}
.article-body .art-page-meta{font-size:13px;color:#667085;margin:0 0 20px;}

/* ===== 文章页顶部咨询条 ===== */
.consult-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:#F2F7FF;border:1px solid #C7DBF7;border-radius:8px;padding:14px 18px;margin:0 0 24px;}
.consult-bar .cb-title{font-size:15px;font-weight:600;color:var(--c-primary-dark,#0B3A82);}
.consult-bar .cb-sub{font-size:12.5px;color:#667085;margin-top:3px;}
.consult-bar .cb-actions{display:flex;gap:10px;flex-wrap:wrap;}
.consult-bar a.cb-btn{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;border-radius:6px;
  font-size:13.5px;font-weight:600;background:var(--c-blue,#1769D1);color:#fff;transition:all .15s;}
.consult-bar a.cb-btn:hover{background:var(--c-primary-dark,#0B3A82);text-decoration:none;}
.consult-bar a.cb-btn.ghost{background:#fff;color:var(--c-blue,#1769D1);border:1px solid var(--c-blue,#1769D1);}
.consult-bar a.cb-btn.ghost:hover{background:#F2F7FF;}
.consult-bar a.cb-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
@media (max-width:768px){.consult-bar{flex-direction:column;align-items:flex-start;}}

/* ===== 手机端页脚紧凑化 + 产业资讯溢出修正（2026-09-19） ===== */
@media (max-width:768px){
  .industry-cols{grid-template-columns:1fr;gap:22px;}
  .industry-col{width:100%;min-width:0;overflow:hidden;}
  .industry-col li{white-space:normal;}
  .industry-col .t{white-space:normal;word-break:break-all;}
  .industry-col .date{white-space:nowrap;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:0 20px;}
  .footer-brand{grid-column:1/-1;}
  .footer-col{margin-bottom:16px;}
  .footer-col h4{font-size:14px;margin-bottom:10px;}
  .footer-col li{margin-bottom:7px;}
  .footer-col a{font-size:13px;}
}

/* ===== 文章页容器留白（2026-09-19 修正手机端贴边） ===== */
.article-wrap{max-width:920px;margin:0 auto;padding:36px 20px 56px;}
@media (max-width:768px){.article-wrap{padding:28px 16px 48px;}}

/* 正文内联咨询按钮（about 页等正文转化入口，浅色底适配） */
.contact-inline{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:14px 0 10px;}
.contact-inline a.fc-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 20px;border-radius:var(--radius);background:var(--c-blue);color:#fff;font-size:14px;font-weight:600;text-decoration:none;transition:all .15s ease;}
.contact-inline a.fc-btn:hover{background:var(--c-primary);color:#fff;text-decoration:none;transform:translateY(-1px);}
.contact-inline a.fc-btn.ghost{background:transparent;color:var(--c-blue);border:1px solid var(--c-blue);}
.contact-inline a.fc-btn.ghost:hover{background:var(--c-blue-light);border-color:var(--c-primary);color:var(--c-primary);}
.contact-inline a.fc-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}