/* ===== 人工智能训练师考务资讯站 · 主页样本（报考须知式）===== */
:root {
  --primary: #16324F;
  --primary-light: #24466B;
  --primary-50: #F2F6FA;
  --accent: #B7791F;
  --accent-dark: #966010;
  --blue: #2563EB;
  --text: #2C3340;
  --text-sub: #5B6572;
  --border: #E3E8EF;
  --bg-alt: #F6F8FB;
  --red: #C0392B;
  --amber-bg: #FDF6E9;
  --green: #1E7E46;
  --radius: 10px;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  font-size: 15px;
  line-height: 1.7;
  background: #fff;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--primary); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
main a { text-decoration: none; }
i.fa { font-size: inherit; }

/* ===== 顶部声明条 ===== */
.topbar { background: var(--primary); color: rgba(255,255,255,.85); font-size: 12.5px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 34px; gap: 12px; flex-wrap: wrap; }
.topbar i { color: #F0B35C; margin-right: 6px; }
@media (max-width: 640px) { .topbar-src { display: none; } }

/* ===== Header ===== */
.header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { display: flex; }
.logo-text { font-size: 17px; font-weight: 500; color: var(--primary); }
.logo-text em { font-style: normal; color: var(--text-sub); font-size: 13px; margin-left: 6px; }
.nav { display: flex; gap: 24px; align-items: center; }
.nav a { color: var(--text-sub); font-size: 14.5px; line-height: 1; display: flex; align-items: center; height: 64px; }
.nav a:hover, .nav a.active { color: var(--primary); font-weight: 500; }
.nav a.active { position: relative; }
.nav a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--accent); }
.nav-cta { background: var(--accent); color: #fff !important; padding: 9px 20px; border-radius: 8px; font-weight: 500; height: auto !important; font-size: 14px !important; }
.nav-cta:hover { background: var(--accent-dark); }
.menu-btn { display: none; background: none; border: none; font-size: 20px; color: var(--primary); cursor: pointer; padding: 6px; }
@media (max-width: 860px) {
  .nav { display: none; }
  .nav-cta { display: none; }
  .menu-btn { display: block; }
  .nav.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: #fff; padding: 8px 20px 16px; box-shadow: 0 8px 16px rgba(0,0,0,.08); gap: 0; align-items: stretch; }
  .nav.open a { height: 48px; border-bottom: 1px solid #F0F2F5; }
  .nav.open a.active::after { display: none; }
}

/* ===== 首屏 · 考务公告栏 ===== */
.hero { background: var(--primary-50); border-bottom: 1px solid var(--border); padding: 46px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 36px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid #EAD9B8; color: var(--accent-dark); font-size: 13px; padding: 5px 14px; border-radius: 999px; margin-bottom: 18px; }
.hero-badge i { font-size: 9px; color: var(--red); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.hero h1 {
  font-family: var(--font-serif);
  font-size: 31px;
  font-weight: 500;
  color: var(--primary);
  line-height: 1.45;
  letter-spacing: .5px;
  border-left: 4px solid var(--accent);
  padding-left: 16px;
  margin-bottom: 14px;
}
.hero-sub { color: var(--text-sub); font-size: 15px; margin-bottom: 24px; max-width: 560px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 16px; }
.btn { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; padding: 12px 26px; border-radius: 8px; border: none; cursor: pointer; font-family: inherit; }
.btn i { font-size: 14px; }
.btn-accent { background: var(--accent); color: #fff !important; font-weight: 500; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-ghost { background: #fff; color: var(--primary) !important; border: 1px solid #C8D2DE; }
.btn-ghost:hover { border-color: var(--primary); }
.btn-blue { background: var(--blue); color: #fff !important; font-weight: 500; }
.btn-blue:hover { background: #1D4ED8; }
.hero-note { font-size: 12.5px; color: var(--text-sub); }
.hero-note i { margin-right: 5px; }
.hero-cards { display: grid; gap: 12px; }
.data-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.data-label { font-size: 12px; color: var(--text-sub); letter-spacing: .5px; margin-bottom: 4px; }
.data-value { font-size: 24px; font-weight: 500; color: var(--primary); line-height: 1.3; }
.data-sub { font-size: 12.5px; color: var(--text-sub); margin-top: 4px; }
@media (max-width: 860px) {
  .hero { padding: 32px 0 28px; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: 24px; }
  .hero-cards { grid-template-columns: 1fr; }
}

/* ===== 关键数据条 ===== */
.stat-bar { background: var(--primary); padding: 26px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-num { font-family: var(--font-serif); font-size: 30px; font-weight: 500; color: #F0B35C; line-height: 1.2; }
.stat-num small { font-size: 15px; margin-left: 2px; }
.stat-label { font-size: 12.5px; color: rgba(255,255,255,.72); margin-top: 4px; }
@media (max-width: 640px) { .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } .stat-num { font-size: 24px; } }

/* ===== 章节通用 ===== */
.section { padding: 44px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 22px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
@media (max-width: 640px) { .section { padding: 32px 0; } .section h2 { font-size: 19px; } }

/* ===== 自测交互 ===== */
.panel-test { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.test-intro h3 { font-size: 16px; color: var(--primary); margin-bottom: 8px; }
.test-intro h3 i { color: var(--accent); margin-right: 6px; }
.test-intro p { font-size: 14px; color: var(--text-sub); }
.test-form { display: flex; align-items: flex-end; gap: 28px; flex-wrap: wrap; margin-top: 20px; }
.test-field { min-width: 240px; flex: 1; }
.test-q { display: block; font-size: 14px; font-weight: 500; color: var(--primary); margin-bottom: 10px; }
.test-options { display: flex; gap: 10px; flex-wrap: wrap; }
.test-options label { cursor: pointer; }
.test-options input { position: absolute; opacity: 0; }
.test-options span { display: inline-block; border: 1px solid var(--border); border-radius: 8px; padding: 8px 14px; font-size: 13.5px; color: var(--text); background: #fff; transition: all .15s; }
.test-options input:checked + span { border-color: var(--blue); color: var(--blue); background: #EFF6FF; font-weight: 500; }
.test-options input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: 2px; }
.test-result { margin-top: 18px; background: var(--primary-50); border: 1px solid #D5E2EF; border-radius: var(--radius); padding: 16px 18px; }
.result-title { font-size: 15px; color: var(--primary); margin-bottom: 6px; }
.result-title strong { color: var(--accent-dark); font-size: 18px; margin-left: 4px; }
.result-reason { font-size: 14px; color: var(--text-sub); margin-bottom: 6px; }
.result-tip { font-size: 13px; color: var(--text-sub); }
.result-tip a { text-decoration: underline; text-underline-offset: 3px; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 560px; }
.tbl th { background: var(--primary); color: #fff; text-align: left; padding: 11px 14px; font-weight: 500; font-size: 13.5px; white-space: nowrap; }
.tbl td { padding: 11px 14px; border-top: 1px solid var(--border); vertical-align: top; color: var(--text); }
.tbl tbody tr:nth-child(even) { background: #FAFBFC; }
.tbl tbody tr:hover { background: var(--primary-50); }
.tbl-sm td { font-size: 13.5px; }
.tbl-title { font-size: 14.5px; color: var(--primary); margin: 6px 0 10px; font-weight: 500; }
.tbl-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
@media (max-width: 860px) { .tbl-2col { grid-template-columns: 1fr; } }
.lv { display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 5px; white-space: nowrap; }
.lv5 { background: #F0F5EB; color: #4A7A1F; }
.lv4 { background: #EAF3EC; color: #1E7E46; }
.lv3 { background: #FFF4E0; color: #966010; }
.lv2 { background: #EAF0FB; color: #1D4ED8; }
.lv1 { background: #F3ECEF; color: #8E3A5C; }
.city-tag { display: inline-block; background: var(--primary); color: #fff; font-size: 12px; padding: 2px 9px; border-radius: 5px; white-space: nowrap; }
.hl-amber { color: var(--accent-dark); }
.src-note { font-size: 12.5px; color: var(--text-sub); margin: 4px 0 0; }
.src-note i { margin-right: 5px; color: var(--text-sub); }
.cond-tip { font-size: 13.5px; color: var(--text-sub); background: #FFFDF6; border: 1px solid #F0E4C8; border-radius: 8px; padding: 10px 14px; margin-top: 10px; }
.cond-tip i { color: var(--accent); margin-right: 6px; }

/* ===== 补贴城市卡片 ===== */
.city-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 16px 0; }
.city-policy { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.city-policy h3 { font-size: 15px; color: var(--primary); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.city-policy p { font-size: 13.5px; color: var(--text-sub); }
.city-policy strong { color: var(--accent-dark); }
@media (max-width: 860px) { .city-grid { grid-template-columns: 1fr; } }

/* ===== 报名流程 ===== */
.notice-box { display: flex; gap: 12px; background: #FFF8E6; border: 1px solid #F0DFB0; border-radius: var(--radius); padding: 14px 16px; margin-bottom: 20px; }
.notice-box i { color: var(--accent-dark); font-size: 18px; margin-top: 3px; }
.notice-box p { font-size: 14px; color: #6B5410; }
.steps { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 22px; }
.steps li { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 14px; position: relative; }
.step-num { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 14px; font-weight: 500; margin-bottom: 10px; }
.steps h3 { font-size: 14.5px; color: var(--primary); margin-bottom: 6px; font-weight: 500; }
.steps p { font-size: 12.5px; color: var(--text-sub); }
@media (max-width: 860px) { .steps { grid-template-columns: repeat(2, 1fr); } }
.materials { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 20px; }
.materials h3 { font-size: 15px; color: var(--primary); margin-bottom: 12px; font-weight: 500; }
.materials h3 i { color: var(--accent); margin-right: 6px; }
.materials ul { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; }
.materials li { font-size: 13.5px; color: var(--text); position: relative; padding-left: 18px; }
.materials li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
@media (max-width: 640px) { .materials ul { grid-template-columns: 1fr; } }
.official-links { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.official-links a { display: inline-flex; align-items: center; gap: 7px; border: 1px solid #C8D2DE; border-radius: 8px; padding: 10px 16px; font-size: 13.5px; color: var(--primary); background: #fff; }
.official-links a:hover { border-color: var(--blue); color: var(--blue); }
.official-links i { color: var(--blue); }
.warning-box { display: flex; gap: 12px; background: #FDF0EF; border: 1px solid #F0C9C4; border-radius: var(--radius); padding: 14px 16px; }
.warning-box i { color: var(--red); font-size: 18px; margin-top: 3px; }
.warning-box p { font-size: 14px; color: #7E2A20; }
.warning-box a { color: var(--red); text-decoration: underline; text-underline-offset: 3px; }

/* ===== FAQ ===== */
.faq-list { display: grid; gap: 10px; }
.faq-list details { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); }
.faq-list summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; padding: 15px 18px; font-size: 15px; font-weight: 500; color: var(--primary); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { transition: transform .2s; color: var(--text-sub); font-size: 15px; }
.faq-list details[open] summary i { transform: rotate(180deg); color: var(--accent); }
.faq-list details p { padding: 0 18px 16px; font-size: 14px; color: var(--text-sub); line-height: 1.8; }
.faq-more { font-size: 14px; color: var(--text-sub); margin-top: 14px; }
.faq-more a { text-decoration: underline; text-underline-offset: 3px; }

/* ===== 21 城 ===== */
.city-group { margin-bottom: 18px; }
.city-group h3 { font-size: 15px; color: var(--primary); margin-bottom: 10px; font-weight: 500; }
.city-links { display: flex; flex-wrap: wrap; gap: 10px; }
.city-links a { border: 1px solid var(--border); background: #fff; border-radius: 8px; padding: 8px 14px; font-size: 13.5px; color: var(--text); }
.city-links a:hover { border-color: var(--blue); color: var(--blue); background: #EFF6FF; }

/* ===== 咨询登记 ===== */
.reg-desc { font-size: 14px; color: var(--text-sub); margin-bottom: 16px; max-width: 640px; }
.form-frame { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.form-frame iframe { width: 100%; height: 720px; border: none; display: block; }
.form-fallback { font-size: 13px; color: var(--text-sub); margin-top: 10px; }
.form-fallback a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 640px) { .form-frame iframe { height: 640px; } }

/* ===== 官方信源 ===== */
.src-list { list-style: none; display: grid; gap: 0; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.src-list li { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 13px 18px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.src-list li:first-child { border-top: none; }
.src-list a { color: var(--blue); font-size: 14px; }
.src-list span { font-size: 12.5px; color: var(--text-sub); }
.src-list a:hover { color: var(--primary); }

/* ===== Footer（h3 统一 24px 下间距）===== */
.footer { background: var(--primary); color: rgba(255,255,255,.78); padding: 40px 0 24px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; padding-bottom: 26px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer h3 { font-size: 15px; color: #fff; font-weight: 500; margin-bottom: 24px; }
.footer p { font-size: 13px; line-height: 1.9; color: rgba(255,255,255,.68); }
.footer ul { list-style: none; }
.footer li { font-size: 13px; margin-bottom: 10px; color: rgba(255,255,255,.68); }
.footer li i { width: 18px; color: #F0B35C; }
.footer a { color: rgba(255,255,255,.78); }
.footer a:hover { color: #F0B35C; }
.footer-disclaimer { padding-top: 20px; font-size: 12px; color: rgba(255,255,255,.5); line-height: 1.8; }
.footer-disclaimer strong { color: rgba(255,255,255,.7); }
.footer-copy { margin-top: 10px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; } }

/* ===== 移动端底部咨询条 ===== */
.mobile-cta-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; background: #fff; border-top: 1px solid var(--border); box-shadow: 0 -2px 10px rgba(0,0,0,.08); padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); gap: 10px; }
.mobile-cta-bar a { display: flex; align-items: center; justify-content: center; gap: 7px; border-radius: 8px; padding: 11px 0; font-size: 14.5px; font-weight: 500; }
.m-cta-ghost { border: 1px solid var(--primary); color: var(--primary) !important; background: #fff; }
.m-cta-solid { background: var(--accent); color: #fff !important; }
@media (max-width: 640px) {
  .mobile-cta-bar { display: flex; }
  body { padding-bottom: 66px; }
}