/* ============================================
   公考真题库 · 单页样式
   ============================================ */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #eff6ff;
  --accent: #f97316;
  --accent-soft: #fff7ed;
  --ink: #0f172a;
  --text: #475569;
  --muted: #94a3b8;
  --ink-2: #64748b;
  --bg: #f6f8fc;
  --card: #ffffff;
  --border: #e2e8f0;
  --green: #16a34a;
  --green-soft: #f0fdf4;
  --red: #dc2626;
  --red-soft: #fef2f2;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(15, 23, 42, .08);
  --header-bg: rgba(255, 255, 255, .92);
  --hero-top: #f0f5ff;
  --hero-sub-mobile: #722f37;
  --footer-bg: #0f172a;
  --footer-text: #cbd5e1;
  --footer-link: #93c5fd;
  --tip-bg: #0f172a;
  --tip-fg: #ffffff;
  --map-fill: #e2e8f0;
  --map-stroke: #ffffff;
  --tab-bd: #dfe6f2; --tab-bg: #f8faff; --tab-fg: #5a6a85;
  --tab-bd-h: #a9c2f2; --tab-bg-h: #eef4ff; --tab-fg-h: #2f54d0;
  --tab-bg-a: #e8f0ff; --tab-bd-a: #7fa8ec; --tab-fg-a: #1f4fca;
  --pending-bg: #e2e8f0; --pending-fg: #64748b;
  --pending-bg-h: #cbd5e1; --pending-fg-h: #475569;
  --primary-bd: rgba(37, 99, 235, .4);
  color-scheme: light;
}

/* ---------- 暗黑模式（html[data-theme="dark"]，由 js/theme.js 控制） ---------- */
html[data-theme="dark"] {
  --primary: #4a8bff;
  --primary-dark: #2563eb;
  --primary-soft: rgba(74, 139, 255, .16);
  --accent: #fb923c;
  --accent-soft: rgba(251, 146, 60, .15);
  --ink: #e7edf8;
  --text: #a9b6cd;
  --muted: #7e8ca6;
  --ink-2: #8b99b3;
  --bg: #0e1526;
  --card: #182338;
  --border: #28354f;
  --green: #4ade80;
  --green-soft: rgba(74, 222, 128, .15);
  --red: #f87171;
  --red-soft: rgba(248, 113, 113, .15);
  --shadow: 0 8px 30px rgba(0, 0, 0, .45);
  --header-bg: rgba(14, 21, 38, .88);
  --hero-top: #131c31;
  --hero-sub-mobile: #a9b6cd;
  --footer-bg: #0a1120;
  --footer-text: #9fb0c9;
  --footer-link: #7fa9f0;
  --tip-bg: #1c2942;
  --tip-fg: #e7edf8;
  --map-fill: #243148;
  --map-stroke: #0e1526;
  --tab-bd: #31405f; --tab-bg: #1a2540; --tab-fg: #a9b6cd;
  --tab-bd-h: #4a8bff; --tab-bg-h: #223055; --tab-fg-h: #9cc0ff;
  --tab-bg-a: #1d3260; --tab-bd-a: #3f6fd8; --tab-fg-a: #bcd4ff;
  --pending-bg: #2a3752; --pending-fg: #8896b0;
  --pending-bg-h: #33415f; --pending-fg-h: #a9b6cd;
  --primary-bd: rgba(74, 139, 255, .45);
  color-scheme: dark;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.site-header.scrolled { border-color: var(--border); box-shadow: 0 2px 16px rgba(15,23,42,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 20px; font-weight: 800; color: var(--primary);
}
.nav { display: flex; gap: 28px; }
.nav a { font-size: 15px; color: var(--text); transition: color .2s; }
.nav a:hover { color: var(--primary); }
.nav .nav-blog { color: var(--primary); font-weight: 600; }
.menu-btn { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-btn span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .3s; }

/* ---------- 首屏 ---------- */
.hero {
  background:
    radial-gradient(1000px 400px at 85% -10%, rgba(37, 99, 235, .12), transparent),
    radial-gradient(800px 400px at -10% 110%, rgba(249, 115, 22, .10), transparent),
    linear-gradient(180deg, var(--hero-top) 0%, var(--bg) 100%);
  padding: 72px 0 64px;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1.6fr; gap: 32px; align-items: center; }
.badge {
  display: inline-block; padding: 5px 14px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--border);
  color: var(--primary); font-size: 13px; font-weight: 600;
  box-shadow: 0 2px 8px rgba(37, 99, 235, .08);
}
.hero h1 {
  margin: 18px 0 14px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.25; font-weight: 900; letter-spacing: 1px;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero-sub { color: var(--text); font-size: 17px; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; margin: 26px 0 22px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 12px;
  font-size: 16px; font-weight: 600;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(37, 99, 235, .32); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-ghost { background: var(--card); color: var(--ink); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

.hero-art img {
  width: 100%; border-radius: 20px;
  box-shadow: var(--shadow);
}

/* ---------- 统计 ---------- */
.stats { padding: 8px 0 56px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 12px; box-shadow: var(--shadow);
}
.stat { text-align: center; }
.stat b { font-size: clamp(26px, 3vw, 38px); font-weight: 900; color: var(--primary); }
.stat span { display: block; color: var(--text); font-size: 14px; margin-top: 2px; }

/* ---------- 通用 Section ---------- */
.section { padding: 64px 0; }
/* 各省份子页面主内容区：缩小上下外边距 */
#download { padding: 15px 0; }
/* 各省份子页面“其他省份”区块：缩小上下外边距 */
#other { padding: 15px 0; }
.section-title { text-align: center; font-size: clamp(26px, 3.4vw, 36px); font-weight: 900; }
.section-desc { text-align: center; color: var(--text); margin: 10px 0 40px; }

/* ---------- 题库分类 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.cat-card {
  position: relative; display: block;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px 22px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary-bd); }
.cat-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-soft); color: var(--primary); margin-bottom: 16px;
}
.cat-icon svg { width: 24px; height: 24px; }
.cat-tag {
  position: absolute; top: 20px; right: 20px;
  font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--primary-soft); padding: 2px 10px; border-radius: 999px;
}
.cat-tag.tag-sl { color: var(--accent); background: var(--accent-soft); }
.cat-tag.tag-ms { color: var(--green); background: var(--green-soft); }
.cat-card h3 { font-size: 19px; font-weight: 800; margin-bottom: 6px; }
.cat-card p { color: var(--text); font-size: 14px; min-height: 48px; }
.cat-card em { font-style: normal; font-size: 14px; font-weight: 700; color: var(--accent); }
.cat-years { display: block; font-size: 12px; color: var(--ink-2); line-height: 1.6; margin-top: 2px; min-height: 20px; }

/* ---------- 使用步骤 ---------- */
.steps-section { padding-bottom: 80px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.step {
  text-align: center; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 22px;
}
.step-num {
  display: inline-block; font-size: 15px; font-weight: 900; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  width: 44px; height: 44px; line-height: 44px; border-radius: 50%;
  margin-bottom: 14px;
}
.step h3 { font-size: 17px; font-weight: 800; margin-bottom: 6px; }
.step p { color: var(--text); font-size: 14px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--footer-bg); color: var(--footer-text); padding: 30px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 14px; }
.footer a { color: var(--footer-link); }
.footer a:hover { text-decoration: underline; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- 省考官网与真题下载 ---------- */
.links-sub { font-size: 19px; font-weight: 800; margin: 40px 0 18px; }
.pdf-grid { margin-bottom: 8px; }
.gov-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.gov-card {
  display: flex; flex-direction: column; gap: 2px;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.gov-card:hover { transform: translateY(-4px); border-color: var(--primary-bd); box-shadow: var(--shadow); }
.gov-card b { font-size: 15px; font-weight: 800; }
.gov-card span { font-size: 12px; color: var(--muted); line-height: 1.5; }
.gov-card .gov-time {
  margin-top: 4px; font-size: 12px; font-weight: 700; color: var(--primary);
  line-height: 1.6;
}
.gov-note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 20px; }
.years-line { color: var(--primary); font-size: 14px; font-weight: 600; margin: 4px 0 0; line-height: 1.8; }

/* 报名地址地区分类：横排 tab 可选（与真题下载 tab 一致） */
.gov-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.gov-tab {
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  padding: 8px 20px; border-radius: 999px; font-size: 14px; cursor: pointer;
  transition: all .2s; font-family: inherit;
}
.gov-tab:hover { border-color: var(--primary); color: var(--primary); }
.gov-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.gov-pane { display: none; }
.gov-pane.active { display: block; }
.footer-keywords { font-size: 12px; color: var(--ink-2); }

/* ---------- 子页面：真题下载 / 报名入口 并排卡片 ---------- */
.side-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.side-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 24px; box-shadow: var(--shadow);
}
.side-card .links-sub { margin-top: 0; }
.side-card .cat-grid, .side-card .gov-grid { grid-template-columns: 1fr; }
.side-card .btn-download { width: 100%; }

/* 真题下载占位按钮（链接待补充） */
.btn-download.pending {
  background: var(--pending-bg); color: var(--pending-fg);
  box-shadow: none; cursor: pointer;
}
.cat-card:hover .btn-download.pending {
  background: var(--pending-bg-h); color: var(--pending-fg-h);
  box-shadow: none; transform: none;
}

/* 首页真题下载 · 后台分类树级联 tab：一/二/三级行均左对齐，点击展示该分类卡片 */
.dl-lv1 { margin-bottom: 16px; }
.dl-lv2 { margin: -6px 0 14px; }
.dl-lv3 { margin: -6px 0 14px; }
.dl-empty { text-align: center; color: var(--muted); font-size: 13px; padding: 8px 0; }

/* 真题下载地区分类：横排 tab 可选 */
.pdf-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.pdf-tab {
  border: 1px solid var(--tab-bd); background: var(--tab-bg); color: var(--tab-fg);
  padding: 8px 20px; border-radius: 999px; font-size: 14px; cursor: pointer;
  transition: all .2s; font-family: inherit;
}
.pdf-tab:hover { border-color: var(--tab-bd-h); background: var(--tab-bg-h); color: var(--tab-fg-h); }
.pdf-tab.active {
  background: var(--tab-bg-a); border-color: var(--tab-bd-a); color: var(--tab-fg-a);
  font-weight: 600;
}
.pdf-group { display: none; }
.pdf-group.active { display: block; }

/* ---------- 中国地图（hero 区） ---------- */
#chinaMap { width: 100%; height: auto; display: block; border-radius: 16px; }
.map-region { fill: var(--map-fill); stroke: var(--map-stroke); stroke-width: 0.35; transition: fill .15s ease; }
.map-region.clickable { cursor: pointer; }
.map-region:hover, .map-region.active { fill: var(--red); }
#mapTip {
  position: fixed; z-index: 99; pointer-events: none;
  background: var(--tip-bg); color: var(--tip-fg); font-size: 13px; font-weight: 700;
  padding: 4px 12px; border-radius: 6px; display: none;
  transform: translate(-50%, -130%);
}
.map-hint { margin-top: 10px; font-size: 13px; color: var(--text); text-align: center; }
.btn-download {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  margin-top: 6px; padding: 9px 26px; border-radius: 999px;
  background: var(--primary); color: #fff;
  font-size: 14px; font-weight: 700; letter-spacing: 2px;
  box-shadow: 0 6px 16px rgba(37, 99, 235, .32);
  transition: background .2s, transform .2s, box-shadow .2s;
}
.cat-card:hover .btn-download {
  background: var(--primary-dark); transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(37, 99, 235, .4);
}
.btn-download:active { transform: scale(.96); }

/* 响应式（平板 ≤860px / 手机 ≤480px）样式见独立文件 mobile.css */