/* ============ 基础与变量 ============ */
:root {
  --blue: #1a5fa8;
  --blue-deep: #144a86;
  --blue-light: #eef4fb;
  --blue-lighter: #f5f8fd;
  --amber: #d99a26;
  --amber-light: #f7e9c9;
  --ink: #1f2a36;
  --gray: #55606c;
  --gray-2: #8b96a3;
  --line: #e3e9f0;
  --bg: #f6f8fc;
  --white: #ffffff;
  --shadow: 0 2px 12px rgba(20, 60, 120, 0.08);
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; transition: color .15s; }
a:hover { color: var(--amber); }
img { max-width: 100%; display: block; }

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 6px rgba(20,60,120,.05);
}
.header-inner {
  max-width: 1160px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; gap: 20px; flex-wrap: wrap;
}
.logo { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.logo-mark {
  width: 46px; height: 46px; flex: 0 0 46px;
  border-radius: 10px;
  background: linear-gradient(150deg, var(--blue) 0%, #3b7fd0 100%);
  color: #fff; font-size: 24px; line-height: 46px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.logo-name { font-size: 20px; font-weight: 700; color: var(--blue-deep); letter-spacing: .5px; white-space: nowrap;}
.logo-sub { font-size: 12px; color: var(--gray); margin-top: 2px;}
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  padding: 8px 16px; border-radius: 8px; font-size: 15px;
  color: var(--ink); background: transparent;
}
.nav a:hover { background: var(--blue-light); color: var(--blue-deep); }
.nav a.active { background: var(--blue); color: #fff; }

/* 移动端导航按钮 */
.nav-toggle { display: none; }

/* ============ 页面容器 ============ */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ============ 横幅 Hero ============ */
.hero {
  background: linear-gradient(160deg, var(--blue-deep) 0%, var(--blue) 45%, #2e6bb0 100%);
  color: #fff; padding: 56px 0 48px; position: relative;
  overflow: hidden;
}
.hero::after {
  content:""; position:absolute; right:-120px; top:-120px;
  width:420px; height:420px; border-radius:50%;
  border:40px solid rgba(255,255,255,.05);
}
.hero-inner { position: relative; max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.hero-brand { font-size: 12px; letter-spacing: 6px; opacity: .8; margin-bottom: 14px; }
.hero-title { font-size: 34px; font-weight: 800; letter-spacing: 3px; margin-bottom: 8px; }
.hero-tagline { font-size: 17px; opacity: .85; max-width: 720px; margin-bottom: 26px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 18px; }
.stat {
  background: rgba(255,255,255,.12); backdrop-filter: blur(6px);
  border-left: 3px solid var(--amber);
  padding: 14px 22px; border-radius: 0 10px 10px 0;
  min-width: 118px;
}
.stat b { display: block; font-size: 26px; color: #ffd97a; font-weight: 800; line-height: 1.3;}
.stat span { font-size: 13px; opacity: .85;}

/* ============ 区块标题 ============ */
section { padding: 56px 0; }
.section-head { margin-bottom: 30px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 700; color: var(--amber);
  letter-spacing: 2px; border: 1px solid var(--amber);
  background: var(--amber-light); padding: 4px 14px; border-radius: 999px; margin-bottom: 10px;
}
.section-title { font-size: 26px; font-weight: 800; color: var(--blue-deep); letter-spacing: 1px; }
.section-sub { font-size: 15px; color: var(--gray); margin-top: 6px;}

/* ============ 通用卡片 ============ */
.card {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--line); box-shadow: var(--shadow);
  transition: transform .15s, box-shadow .15s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(20,60,120,.12); }

/* 业务方向网格 */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card-body { padding: 26px; }
.card-ico {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 16px;
}
.card h3 { font-size: 18px; font-weight: 800; color: var(--blue-deep); margin-bottom: 8px;}
.card p { font-size: 15px; color: var(--gray); line-height: 1.75;}

/* ============ 数据条 ============ */
.databar { display: grid; gap: 16px; margin: 0 0 30px; }
.databar {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 14px;
}
.databar .dbox {
  background: var(--white); border-radius: var(--radius); border: 1px solid var(--line);
  padding: 20px 18px; text-align: center;
}
.databar .dbox b { font-size: 30px; font-weight: 800; color: var(--blue); display: block;}
.databar .dbox span { font-size: 14px; color: var(--gray);}

/* ============ 大事记时间线 ============ */
.timeline { display: flex; flex-direction: column; gap: 0; }
.t-item {
  position: relative; padding: 0 0 30px 40px;
  border-left: 3px solid var(--blue-light);
}
.t-item::before {
  content:""; position:absolute; left:-14px; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--white); border: 3px solid var(--blue);
}
.t-item .t-date { display: inline-block; font-weight: 800; color: var(--blue); font-size: 14px; margin-bottom: 4px;}
.t-item .t-title { font-size: 17px; font-weight: 700; color: var(--ink); margin-bottom: 4px;}
.t-item .t-desc { font-size: 15px; color: var(--gray);}

/* ============ 列表（媒体报道/制度）============ */
.media-list { list-style: none; }
.media-list li {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 20px; margin-bottom: 14px;
  display: flex; align-items: flex-start; gap: 14px;
}
.media-list li:hover { background: var(--blue-lighter); }
.m-tag {
  flex: 0 0 86px; text-align: center; font-size: 13px; font-weight: 800;
  color: #fff; background: var(--blue); border-radius: 8px;
  padding: 8px 0; height: 34px; display: flex; align-items: center; justify-content: center;
}
.m-tag.gov { background: var(--amber); color: #5b3a08; }
.m-body { flex: 1; }
.m-body a { font-size: 15px; font-weight: 600; color: var(--ink); display: block; line-height: 1.6;}
.m-body a:hover { color: var(--blue); }
.m-body .m-link { display: inline-block; font-size: 13px; color: var(--blue); margin-top: 4px; word-break: break-all;}
.m-body .m-note { font-size: 13px; color: var(--gray-2); margin-top: 6px;}

/* 制度分组 */
.sys-group { margin-bottom: 26px; }
.sys-group h3 {
  font-size: 18px; font-weight: 800; color: var(--blue-deep);
  padding: 12px 16px; background: var(--blue-light); border-radius: 10px;
  display: flex; align-items: center; gap: 10px;
}
.sys-group h3 .num { color: var(--amber); font-size: 13px; font-weight: 700; }
.sys-list { list-style: none; }
.sys-list li {
  display: flex; align-items: center; gap: 10px;
  background: var(--white); border: 1px solid var(--line); border-radius: 8px;
  padding: 12px 16px; margin-bottom: 10px; font-size: 15px; color: var(--ink);
}
.sys-list li::before { content:"●"; color: var(--amber); font-size: 12px; }

/* ============ 章程正文 ============ */
.charter-wrap { display: grid; grid-template-columns: 260px 1fr; gap: 34px; }
.charter-nav { position: sticky; top: 90px; align-self: start; }
.charter-nav ul { list-style: none; }
.charter-nav li {
  padding: 9px 12px; border-radius: 8px; font-size: 14px;
  color: var(--gray); border-left: 3px solid transparent;
}
.charter-nav li:hover { background: var(--blue-lighter); color: var(--blue-deep);}
.charter-nav li.active { background: var(--blue-light); color: var(--blue-deep); border-left-color: var(--blue); font-weight: 700;}
.charter-nav li a { color: inherit; font-weight: 500;}
.charter-body { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 40px; }
.charter-body h1 { font-size: 24px; color: var(--blue-deep); text-align: center; margin-bottom: 8px; font-weight: 800;}
.charter-body .cc-date { text-align: center; color: var(--gray); font-size: 14px; margin-bottom: 26px;}
.charter-body h2 {
  font-size: 19px; color: var(--blue-deep); margin: 30px 0 12px;
  padding-left: 12px; border-left: 3px solid var(--amber); line-height: 1.4;
}
.charter-body p { font-size: 15.5px; line-height: 1.85; color: var(--ink); margin-bottom: 10px;}
.charter-body .cl { font-weight: 700; color: var(--blue-deep); }

/* ============ 下载 / 联系 ============ */
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 26px;}
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 10px;
  font-size: 15px; font-weight: 700; text-align: center;
  transition: transform .12s, box-shadow .12s, background .12s;
}
.btn-primary { background: var(--white); color: var(--blue-deep); }
.btn-primary:hover { background: #eef2f8; transform: translateY(-2px); }
.btn-amber { background: var(--amber); color: #3b2a05; }
.btn-amber:hover { background: #e8ae3a; transform: translateY(-2px); }
.btn-outline { border: 1px solid rgba(255,255,255,.4); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.15); }

.contact-box {
  background: var(--white); border-radius: var(--radius); border: 1px solid var(--line);
  padding: 30px 34px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px;
  box-shadow: var(--shadow);
}
.contact-box .c-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px;}
.contact-box .c-ico { flex:0 0 44px; height: 44px; border-radius: 10px; background: var(--blue-light); display:flex; align-items:center; justify-content:center; font-size: 18px;}
.contact-box .c-item b { display:block; font-size: 14px; color: var(--gray-2); font-weight: 700;}
.contact-box .c-item span { font-size: 15px; color: var(--ink); line-height: 1.7;}
.contact-box .c-item .big { font-size: 20px; font-weight: 800; color: var(--blue-deep);}
.contact-box .c-note { font-size: 13px; color: var(--gray-2);}

/* ============ 底部 ============ */
.site-footer {
  background: var(--blue-deep); color: #cfd9e8;
  padding: 34px 0; margin-top: 30px; text-align: center; font-size: 13px; line-height: 1.9;}
.site-footer a { color: #e8eef7; }
.site-footer .ft-brand { font-size: 15px; color: #fff; font-weight: 700; margin-bottom: 8px;}

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .hero-title { font-size: 27px;}
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr;}
  .databar { grid-template-columns: repeat(2,1fr);}
  .contact-box { grid-template-columns: 1fr;}
}
@media (max-width: 680px) {
  .header-inner { flex-direction: column; padding: 12px 16px;}
  .hero { padding: 40px 0 36px;}
  .hero-title { font-size: 24px;}
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr;}
  .databar { grid-template-columns: 1fr 1fr; gap: 10px;}
  .charter-wrap { grid-template-columns: 1fr;}
  .charter-nav { position: static; margin-bottom: 20px;}
  .charter-body { padding: 24px 18px;}
  .section { padding: 42px 0;}
}