/* =========================================================
   广轻 · 信息化建设中心官网（校园风 V3 静态版）
   深蓝 #0A3F8C + 暖橙点缀 #F5821F · 响应式
   ========================================================= */

:root{
  /* 主色 */
  --blue:#0A3F8C;          /* 主深蓝 */
  --blue-700:#0A5BC8;
  --blue-600:#2E7BE8;
  --blue-300:#8FB8FF;
  --accent:#F5821F;        /* 暖橙点缀（校园风） */
  --accent-deep:#E86A00;
  --red:#E22636;           /* 分类红（业务卡保留用） */
  /* 文本 */
  --ink:#0F2440;
  --ink-2:#15263F;
  --ink-3:#24364F;
  --ink-4:#303E58;
  --ink-5:#44516B;
  --muted:#97A5BB;
  --muted-2:#9AA9BE;
  /* 背景与线 */
  --bg-soft:#F4F7FC;
  --line:#E8EDF4;
  --card-line:#E5EAF2;
  /* 辅助色 */
  --green:#0A8F6E;
  --orange:#E08A00;
  --purple:#7A4FDB;
  /* 尺寸 */
  --header-h:92px;
  --radius:20px;
  --shadow-card:0 10px 26px -8px rgba(18,31,56,.08);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink-5);font-size:15px;line-height:1.6;background:#fff;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
img,svg{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--blue-600);outline-offset:2px}

.container{max-width:1320px;margin-inline:auto;padding-inline:40px}

/* =========================================================
   滚动入场动效（参考北大经院语言：0.8s / ease-in-out / 50px 位移 / 分向错峰）
   · 触发：元素到达视口 90% 高度处
   · 重播：滚出视口后复位，再次滚入重新播放
   ========================================================= */

/* 基类：默认上浮 50px */
.reveal{
  opacity:0;
  transform:translateY(50px);
  transition:all .8s ease-in-out;
  will-change:opacity,transform;
}
/* 方向变体：左移 / 右移 / 缩放 */
.reveal.reveal-left{transform:translateX(-50px)}
.reveal.reveal-right{transform:translateX(50px)}
.reveal.reveal-zoom{transform:translateY(30px) scale(.96)}
/* 轻浮：用于标题、标签等小体量元素，幅度减半，避免"跳" */
.reveal.reveal-soft{transform:translateY(26px);transition-duration:.65s}
.reveal.in{opacity:1;transform:none;will-change:auto}

/* 复位（滚出视口）退场略快，减少来回滚动的拖沓 */
.reveal:not(.in){transition-duration:.5s}

/* ================= Header ================= */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}

/* ---------- 滚动进度指示条（页头底部，随下拉推进） ---------- */
.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  background:transparent;pointer-events:none;
}
.scroll-progress>i{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--accent) 0%,var(--accent-deep) 62%,var(--blue-600) 100%);
  border-radius:0 2px 2px 0;
  transition:width .12s linear;
}
@media (prefers-reduced-motion:reduce){
  .scroll-progress>i{transition:none}
}

.site-header.scrolled{box-shadow:0 8px 24px -14px rgba(10,40,90,.28)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}

.brand{display:flex;align-items:center;gap:16px;flex-shrink:0}
.brand-logo{height:44px;width:auto;display:block}
.brand-divider{width:1px;height:42px;background:#E3E9F2;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text small{font-size:10.5px;color:#8B9AB1;letter-spacing:1.5px}
.brand-text strong{font-size:21px;color:var(--blue);font-weight:700;letter-spacing:2px;white-space:nowrap}
.brand-bar{width:60px;height:3px;border-radius:2px;background:var(--accent);margin-top:3px}

.main-nav{display:flex;align-items:center}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:12px 3px;margin:0 12px;font-size:16px;color:var(--ink-4);
  transition:color .25s;
}
.nav-item.active{color:var(--blue);font-weight:600}
.nav-item.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:26px;height:3px;border-radius:2px;background:var(--accent);
}

.header-actions{display:flex;align-items:center;gap:10px}
.search-btn{
  display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  background:#F2F6FB;color:#44516B;transition:.25s;
}
.search-btn:hover{background:#E3ECF8;color:var(--blue)}

.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:10px;background:#F2F6FB}
.hamburger span{display:block;width:20px;height:2px;margin-inline:auto;background:#33415C;border-radius:2px;transition:.3s}
.site-header.nav-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .hamburger span:nth-child(2){opacity:0}
.site-header.nav-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 页头搜索 */
/* 展开式搜索面板。必须显式声明列轨道：否则面板作为 grid item 会被 .container 的
   margin-inline:auto 收缩成内容宽（约 367px）并居中，而不是与页头导航同宽。 */
.header-search{display:grid;grid-template-columns:1fr;grid-template-rows:0fr;transition:grid-template-rows .35s ease}
.header-search.open{grid-template-rows:1fr}
.search-panel{width:100%;overflow:hidden;min-height:0;display:block;padding:0 40px;max-height:0;transition:max-height .35s ease,padding .35s ease}
.header-search.open .search-panel{max-height:132px;padding:14px 40px 18px}
.search-panel input{
  height:46px;border:1px solid var(--line);border-radius:12px;padding:0 18px;
  font-size:14px;font-family:inherit;background:#F7FAFD;color:var(--ink-3);
}
.search-panel input:focus{outline:none;border-color:var(--blue-600);background:#fff}
.search-go{height:46px;padding:0 26px;border-radius:12px;background:var(--blue);color:#fff;font-size:15px;font-weight:600;white-space:nowrap}
.search-go:hover{background:var(--blue-700)}
/* 网站群后端实际渲染结构（已从现场 DevTools 确认）：
     .search-panel 下混杂着多个 <script>、<style>、空的注入容器 div#div<uid>、
     以及 #app<uid>（uid 为动态值）> div > input + button
   因此不再用 flex / :has() / 具体层级去"搭桥"——那些只要断一层，输入框就缩回默认宽。
   新方案：面板内所有 div 一律铺满成块（display:block;width:100%），
   输入框用 calc 定宽与按钮同行（inline-block）。不依赖任何父级布局方式，结构怎么包都成立。
   108px = 按钮约 82 + 与输入框间距 12 + 字体渲染余量 14。 */
#headerSearch .search-panel div{display:block;width:100%}
#headerSearch .search-panel input{display:inline-block;width:calc(100% - 108px);margin-right:12px;vertical-align:middle}
#headerSearch .search-panel .search-go{display:inline-block;width:auto;vertical-align:middle}
/* 后端「应用维护中！」错误态：保持其内联的居中排版（width:100% 的块级正好可用） */

/* ================= Hero ================= */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(90deg, rgba(4,16,45,.94) 0%, rgba(4,16,45,.62) 40%, rgba(4,16,45,.18) 72%, rgba(4,16,45,0) 100%),
    linear-gradient(0deg, rgba(4,16,45,.9) 0%, rgba(4,16,45,.42) 30%, rgba(4,16,45,0) 55%),
    url("../images/campus-lake.jpg") center 58% / cover no-repeat,
    linear-gradient(115deg,#1253B8 0%,#0A3F8C 46%,#071F4E 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg, rgba(4,16,45,.0) 0%, rgba(4,16,45,.0) 55%, rgba(9,28,66,.55) 100%);
}
.hero-body{position:relative;z-index:2;padding-top:72px;padding-bottom:50px;min-height:720px;display:flex;flex-direction:column;justify-content:center}
.hero-main{display:flex;align-items:center}

.hero-left{width:min(720px,58%);flex-shrink:0;padding:12px 0}
.chip{
  display:inline-flex;align-items:center;gap:9px;padding:9px 18px;border-radius:999px;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.35);
  font-size:13px;font-weight:500;margin-bottom:26px;backdrop-filter:blur(4px);
}
.hero-title{font-size:56px;line-height:1.28;font-weight:700;color:#fff;letter-spacing:1px}
.hero-title .t-gold{display:block;color:#FFC774}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.95;color:#D6E4F7;max-width:660px;text-shadow:0 1px 12px rgba(3,12,36,.35)}
.hero-actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 30px;
  border-radius:10px;font-size:16px;transition:.25s;
}
.btn-primary{
  background:linear-gradient(90deg,#FF9C2E,#F06A00);color:#fff;font-weight:700;border-radius:999px;
  box-shadow:0 12px 26px -8px rgba(240,106,0,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px -8px rgba(240,106,0,.65)}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;font-weight:500;border:1px solid rgba(255,255,255,.55);border-radius:999px}
.btn-ghost:hover{background:rgba(255,255,255,.2)}

/* 数据指标条 */
.stats-bar{
  margin-top:56px;display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  border-radius:20px;padding:18px 30px;backdrop-filter:blur(6px);
}
.stat{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:0}
.stat strong{font-size:32px;font-weight:700;line-height:1.2}
.stat span{font-size:13px;color:#B7C9E9;white-space:nowrap}

/* ================= 通用区块标题 ================= */
.sec-head.center{text-align:center;max-width:760px;margin-inline:auto}
.eyebrow{font-size:14px;font-weight:600;color:var(--accent);letter-spacing:.08em}
.sec-head h3,.sec-head-left h3{font-size:34px;color:var(--ink);font-weight:700;letter-spacing:.5px}
.sec-head.center h3{margin-top:12px}
.sec-desc{margin-top:12px;font-size:15px;color:#6A7890}

.sec-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head-left{display:flex;align-items:center;gap:14px}
.bar-red{width:6px;height:34px;border-radius:3px;background:var(--accent);display:inline-block}
.bar-blue{width:4px;height:19px;border-radius:2px;background:var(--blue-700);display:inline-block}
.sec-head-left h3{display:flex;align-items:center;gap:14px}
.round-pill{
  display:inline-flex;align-items:center;height:46px;padding:0 26px;border-radius:999px;
  background:#fff;border:1px solid #DCE3EE;font-size:13.5px;color:var(--blue);font-weight:600;transition:.25s;
}
.round-pill:hover{border-color:var(--blue);background:#F4F8FE}

/* ================= 服务入口 ================= */
.services{background:#fff;padding:90px 0 64px}
.svc-label{display:flex;align-items:center;gap:10px;margin:48px 0 0;font-size:15.5px;font-weight:600;color:#1F3350}
.svc-label::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--accent)}
.svc-label small{font-size:12.5px;font-weight:400;color:var(--muted)}
.svc-label+.quick-grid,.svc-label+.pill-row{margin-top:18px}
/* flex + 居中：卡片数为 5 时，窄屏折行（3+2 / 2+2+1）末行自动居中，不留缺格 */
.quick-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:20px;margin-top:42px}
.quick-grid>.quick-card{flex:0 1 calc((100% - 80px)/5)}
.quick-card{
  position:relative;
  display:flex;flex-direction:column;align-items:center;gap:13px;text-align:center;
  background:#fff;border:1px solid var(--card-line);border-radius:18px;
  padding:26px 16px 22px;transition:.28s;box-shadow:0 6px 16px -8px rgba(18,31,56,.06);
}
.quick-card:hover{transform:translateY(-6px);border-color:#C9D8EF;box-shadow:0 18px 34px -14px rgba(15,50,120,.2)}
.q-ic{display:grid;place-items:center;width:64px;height:64px;border-radius:50%}
.q-ic svg{width:29px;height:29px}
.bg-blue{background:#E7F0FD}.bg-red{background:#FDEBEE}.bg-green{background:#E4F6F0}
.bg-orange{background:#FDF1E4}.bg-purple{background:#F1EBFC}.bg-indigo{background:#E9EEFE}
.bg-rose{background:#FCE6E2}
/* 访问范围角标（如「仅限内网」），用于提示该入口有网络环境限制 */
.q-tag{
  position:absolute;top:10px;right:10px;font-size:11px;line-height:1;font-weight:500;
  padding:5px 8px;border-radius:999px;background:#FEF3E6;color:#A9660A;border:1px solid #FBE0C0;
}
.quick-card strong{font-size:17px;color:#1F3350;font-weight:600}
.quick-card em{font-style:normal;font-size:12.5px;color:var(--muted)}

.pill-row{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:34px}
.pill{
  display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:999px;
  background:#F5F8FC;border:1px solid #E2E8F1;font-size:13px;color:var(--ink-5);transition:.25s;
}
.pill:hover{background:#EAF2FE;border-color:#C9D8EF;color:var(--blue)}
/* 服务入口 → 办事指南 的引导链接 */
.svc-more{margin-top:30px;text-align:center}
.svc-more a{font-size:14px;font-weight:600;color:var(--blue);transition:.2s}
.svc-more a:hover{color:var(--accent)}

/* ================= 资讯中心 ================= */
.news{background:var(--bg-soft);padding:88px 0 96px}
.news-grid{display:grid;grid-template-columns:432px 1fr;gap:26px}

/* 面板卡 */
.panel{background:#fff;border:1px solid var(--card-line);border-radius:var(--radius);box-shadow:var(--shadow-card);overflow:hidden}
.panel-head{display:flex;align-items:center;justify-content:space-between;height:70px;padding:0 26px}
.panel-head h4{display:flex;align-items:center;gap:11px;font-size:20px;color:var(--ink-2);font-weight:700}
.panel-head .more{font-size:13px;color:var(--blue-600)}
.panel-head .more.dim{color:var(--muted-2)}
.panel-head .more:hover{color:var(--blue-700)}
.panel-line{height:1px;background:#EDF1F6}
.news-left{display:flex;flex-direction:column;gap:24px}
/* 两栏等高对齐：左列面板/列表行弹性填充 */
.news-left>.panel{flex:1;display:flex;flex-direction:column}
.news-left .notice-list{flex:1;display:flex;flex-direction:column}
.news-left .nl-row{flex:1;min-height:44px}
/* 两栏等高对齐：右列图文卡拉伸，封面吸收高度差 */
.news-right{display:flex;flex-direction:column}
.news-cards{flex:1;grid-template-rows:1fr 1fr}
.n-card{display:flex;flex-direction:column}
.n-cover{flex:1;min-height:212px}

/* 公告列表 */
.notice-list{padding:6px 24px 10px}
.nl-row{display:flex;align-items:center;gap:10px;height:48px;border-bottom:1px dashed #EDF1F6}
.nl-row:last-child{border-bottom:0}
.nl-t{flex:1;font-size:14px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nl-row:hover .nl-t{color:var(--blue-700)}
.dot{width:5px;height:5px;border-radius:50%;background:var(--blue-600);flex-shrink:0}
.nl-row time{font-size:12px;color:var(--muted-2);flex-shrink:0;font-variant-numeric:tabular-nums}

/* 图文卡 */
.news-cards{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.n-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-card);transition:.28s;
}
.n-card:hover{transform:translateY(-6px);box-shadow:0 22px 40px -16px rgba(15,50,120,.22)}
.n-cover{position:relative;display:block;height:212px;overflow:hidden}
/* 图片绝对定位填充：脱离文档流，无论原图尺寸比例如何都只在固定框内裁切显示，
   不会撑高卡片与版面（竖版长图/红头文件截图等均安全） */
.n-cover img{position:absolute;left:0;top:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease,scale .45s ease}
/* 注：悬停放大规则见文件末尾「图文封面 Ken Burns」处——需与入场推近一起看优先级 */
.n-tag{
  position:absolute;left:18px;top:16px;z-index:2;font-size:11.5px;font-weight:700;
  padding:6px 14px;border-radius:999px;letter-spacing:.5px;
}
.tag-red{background:var(--accent);color:#fff}
.tag-light-v{background:#fff;color:#4A31C0}
.tag-light-g{background:#fff;color:#07745E}
.tag-light-o{background:#fff;color:#C4660B}
.n-body{padding:18px 20px 20px}
.n-body h5{font-size:16.5px;line-height:1.55;color:var(--ink-2);font-weight:600;min-height:52px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.n-body h5 a:hover{color:var(--blue-700)}
.n-meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px}
.n-meta time{font-size:12px;color:var(--muted-2)}
.n-meta a{font-size:12.5px;color:var(--blue-600);font-weight:600}
.n-meta a:hover{color:var(--blue-700)}

/* ================= 业务与服务指南 ================= */
.guides{background:#fff;padding:88px 0 100px}
/* 指南版块内的热门指引：左对齐，与三张业务卡形成层次 */
.guides .pill-row{justify-content:flex-start;margin-top:18px}
.guides .guide-grid{margin-top:30px}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--card-line);
  border-radius:var(--radius);padding:28px 26px 24px;box-shadow:var(--shadow-card);transition:.28s;
}
.guide-card:hover{transform:translateY(-6px);box-shadow:0 22px 40px -16px rgba(15,50,120,.2)}
.guide-head{display:flex;align-items:center;gap:15px}
.g-ic{display:grid;place-items:center;width:62px;height:62px;border-radius:19px;flex-shrink:0}
.g-ic svg{width:30px;height:30px}
.bg-blue-l{background:#E9F1FE}.bg-red-l{background:#FDEBEE}.bg-orange-l{background:#FDF1E4}
.guide-head h4{font-size:20px;color:var(--ink-2);font-weight:700}
.guide-head p{font-size:12.5px;color:var(--muted);margin-top:3px}
.guide-list{margin:20px 0 8px;border-top:1px dashed #EDF1F6;padding-top:14px}
.guide-list li{
  display:flex;align-items:center;gap:12px;height:42px;
}
.guide-list li > span{flex:1;font-size:14px;color:var(--ink-5);transition:.2s}
.guide-list li:hover > span{color:var(--blue-700)}
.no{
  display:grid;place-items:center;width:26px;height:26px;border-radius:8px;
  background:#EEF4FD;color:var(--blue-700);font-size:11px;font-weight:700;font-style:normal;
  font-family:"SF Mono",Consolas,monospace;
}
.no-red{background:#FDEBEE;color:var(--red)}
.no-orange{background:#FDF1E4;color:var(--orange)}
/* 指南列表行箭头（CSS mask 图标） */
.arr{
  display:inline-block;width:10px;height:10px;flex-shrink:0;background:#C3CFE2;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2 L8 6 L4 10' fill='none' stroke='%23000' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2 L8 6 L4 10' fill='none' stroke='%23000' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;
}
.guide-list .arr{opacity:.7}
.guide-link{margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.link-blue{color:var(--blue-700)}.link-blue:hover{color:var(--blue)}
.link-red{color:var(--red)}
.link-orange{color:var(--orange)}

/* ================= CTA ================= */
.cta{
  background:linear-gradient(90deg,#1253B8,#0A3F8C 60%,#082E6E);color:#fff;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-top:52px;padding-bottom:52px;flex-wrap:wrap}
.cta-left h3{font-size:31px;font-weight:700}
.cta-left p{margin-top:10px;font-size:14.5px;color:#C6D8F5}
.cta-right{display:flex;align-items:center;gap:36px;flex-wrap:wrap}
.cta-btn{background:#fff;color:var(--blue);font-weight:700;border-radius:12px}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px -10px rgba(0,0,0,.3)}

/* ================= 页脚 ================= */
.footer{background:#081426;color:#A9BBD6}
.footer-main{display:flex;justify-content:space-between;gap:50px;padding:58px 0 40px;flex-wrap:wrap}
.f-brand{width:400px}
.f-brand-top{display:flex;align-items:center;gap:16px}
.f-brand-top img{height:38px;width:auto;display:block}
.f-brand-divider{width:1px;height:36px;background:#24365A;flex-shrink:0}
.f-brand-top span{display:flex;flex-direction:column;line-height:1.3}
.f-brand-top small{font-size:10.5px;color:#AFC0DC;letter-spacing:1.5px}
.f-brand-top strong{font-size:20px;color:#fff;font-weight:700;letter-spacing:2px;white-space:nowrap}
.f-brand > p{margin-top:18px;font-size:13.5px;line-height:1.9;color:#8FA6C8;max-width:380px}
.f-col{display:flex;flex-direction:column;gap:12px;min-width:170px}
.f-col h5{font-size:16px;color:#fff;font-weight:700;margin-bottom:4px}
.f-col a{font-size:13.5px;color:#A9BBD6;transition:.2s;width:fit-content}
.f-col a:hover{color:#fff}
.f-contact p{display:flex;flex-direction:column;gap:3px;font-size:13.5px;max-width:330px}
.f-contact small{font-size:12px;color:#7E93B5}
.f-contact .f-tel{font-size:17px;color:#E4EDFB;font-weight:500}
.f-contact a{font-size:13.5px}
.footer-line{height:1px;background:#1D3A63}
.footer-copy{padding:22px 0 28px;text-align:center;display:flex;flex-direction:column;gap:6px}
.footer-copy p{font-size:12px;color:#7E93B5}

/* ================= 返回顶部 ================= */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;display:grid;place-items:center;
  width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;
  box-shadow:0 12px 24px -8px rgba(10,63,140,.5);opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue-700)}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1240px){
  .hero-title{font-size:48px}
  .nav-item{margin:0 10px;font-size:15px}
  .container{padding-inline:28px}
}

/* 折叠导航：断点提前到 1300px，避免中等宽度下横向菜单被压折行 */
@media (max-width:1300px){
  .hamburger{display:flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;z-index:99;flex-direction:column;align-items:stretch;
    background:#fff;padding:8px 24px 20px;gap:0;
    border-bottom:1px solid var(--line);box-shadow:0 26px 40px -22px rgba(8,24,50,.25);
    opacity:0;visibility:hidden;transform:translateY(-12px);transition:.3s;
  }
  .site-header.nav-open .main-nav{opacity:1;visibility:visible;transform:none}
  .nav-item{height:52px;margin:0;border-bottom:1px solid #F0F4F9;font-size:16px;padding:0}
  .nav-item.active::after{display:none}
  .nav-item.active{color:var(--blue)}
}

@media (max-width:1100px){
  .quick-grid>.quick-card{flex-basis:calc((100% - 40px)/3)}
  .guide-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .news-grid>*{min-width:0}
  /* 单列布局下取消等高拉伸 */
  .news-left>.panel{flex:none;display:block}
  .news-left .notice-list{display:block}
  .news-left .nl-row{flex:none;height:48px}
  .news-right{display:block}
  .news-cards{grid-template-rows:none;flex:none}
  .n-cover{flex:none}
}

@media (max-width:1000px){
  .hero-body{padding-top:52px;padding-bottom:44px;min-height:0}
  .hero-main{flex-direction:column;align-items:stretch}
  .hero-left{width:100%}
  .stats-bar{margin-top:36px}
}

@media (max-width:860px){
  .cta-inner{justify-content:center;text-align:center}
  .cta-right{justify-content:center}
}

@media (max-width:768px){
  :root{--header-h:76px}
  .brand-logo{height:38px}
  .brand-divider{height:36px}
  .brand-text strong{font-size:21px}
  .brand-text small{font-size:11px}
  .container{padding-inline:20px}
  .header-search.open .search-panel{padding:12px 20px 16px}
  .search-panel{padding:0 20px}
  .hero-body{padding-top:40px;padding-bottom:36px;min-height:0}
  .hero-title{font-size:34px;line-height:1.32}
  .hero-sub{font-size:15px;line-height:1.85;margin-top:16px}
  .hero-actions{margin-top:24px}
  .btn{height:48px;padding:0 22px;font-size:15px}
  .stats-bar{grid-template-columns:1fr 1fr;gap:10px;padding:14px 18px;margin-top:28px}
  .stat{border-right:0;padding:8px 4px}
  .stat strong{font-size:26px}
  .stat span{font-size:11.5px}
  .services{padding:64px 0 48px}
  .quick-grid{gap:14px;margin-top:30px}
  .quick-grid>.quick-card{flex-basis:calc((100% - 14px)/2)}
  .quick-card{padding:20px 10px 16px}
  .q-ic{width:56px;height:56px;border-radius:50%}
  .news{padding:60px 0 66px}
  .news-cards{grid-template-columns:1fr;gap:20px}
  .sec-head h3,.sec-head-left h3{font-size:26px}
  .sec-row{flex-wrap:wrap}
  .round-pill{height:42px;padding:0 20px}
  .n-cover{height:190px}
  .guides{padding:60px 0 70px}
  .footer-main{flex-direction:column;gap:36px}
  .f-brand{width:100%}
  .footer-copy p{font-size:11px}
  .nl-t{font-size:13px}
}

@media (max-width:420px){
  .hero-title{font-size:29px}
  .sec-head-left h3 .bar-red{width:5px;height:26px}
  .n-body h5{font-size:15.5px;min-height:0}
  .quick-card strong{font-size:15px}
  .quick-card em{font-size:11.5px}
}

/* 窄屏页头/页脚品牌：压缩品牌区，避免菜单按钮被挤出屏幕 */
@media (max-width:620px){
  .brand{gap:10px}
  .brand-logo{height:30px}
  .brand-text small{display:none}
  .brand-bar{display:none}
  .f-brand-top{gap:10px}
  .f-brand-top img{height:30px;width:auto}
  .f-brand-top small{display:none}
}
@media (max-width:520px){
  .container{padding-inline:18px}
  .brand{gap:6px}
  .brand-logo{height:22px}
  .brand-divider{display:none}
  .brand-text strong{font-size:15px;letter-spacing:.5px}
  .header-actions{gap:6px}
  .search-btn{width:40px;height:40px}
  .hamburger{width:40px;height:40px}
  .f-brand-top{gap:6px}
  .f-brand-top img{height:22px;width:auto}
  .f-brand-divider{display:none}
  .f-brand-top strong{font-size:15px;letter-spacing:.5px}
}
@media (max-width:380px){
  .container{padding-inline:14px}
  .brand-logo{height:20px}
  .brand-text strong{font-size:14px;letter-spacing:0}
  .f-brand-top img{height:20px;width:auto}
  .f-brand-top strong{font-size:14px;letter-spacing:0}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* =========================================================
   二级页面 · 栏目页（通知公告）与 新闻详情页
   ========================================================= */

/* ---- 栏目 Banner ---- */
.page-banner{position:relative;height:230px;display:flex;align-items:center;overflow:hidden;background:var(--blue)}
.pb-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pb-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,16,45,.94) 0%,rgba(4,16,45,.66) 55%,rgba(4,16,45,.26) 100%)}
.pb-inner{position:relative;z-index:2}
.pb-title{font-size:40px;font-weight:700;color:#fff;letter-spacing:2px}
.pb-crumbs{margin-top:18px;display:flex;align-items:center;gap:8px;font-size:13px;color:#B7C9E9}
.pb-crumbs a{color:#B7C9E9;transition:.2s}
.pb-crumbs a:hover{color:#fff}
.pb-crumbs .cur{color:#FFC774;font-weight:500}

/* ---- 筛选工具栏 ---- */
.filter-sec{padding-top:34px}
.filter-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.f-tabs{display:flex;gap:12px;flex-wrap:wrap}
.f-tab{padding:9px 22px;border-radius:999px;border:1px solid var(--card-line);background:#fff;color:var(--ink-5);font-size:14px;cursor:pointer;transition:.2s;font-family:inherit}
.f-tab em{font-style:normal;opacity:.75;font-size:13px}
.f-tab:hover{border-color:var(--blue-600);color:var(--blue-600)}
.f-tab.active{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.f-tab.active em{opacity:.9}
.f-search{display:flex;align-items:center;gap:8px;width:300px;height:42px;padding:0 18px;border:1px solid var(--card-line);border-radius:999px;background:#fff;transition:.2s}
.f-search:focus-within{border-color:var(--blue-600);box-shadow:0 0 0 3px rgba(46,123,232,.12)}
.f-search input{flex:1;min-width:0;border:0;outline:0;font-size:13px;color:var(--ink-3);background:transparent}
.f-search input::placeholder{color:var(--muted)}

/* ---- 公告列表卡 ---- */
.list-sec{padding-top:26px;padding-bottom:10px}
.list-card{background:#fff;border:1px solid var(--card-line);border-radius:16px;overflow:hidden;box-shadow:0 6px 16px -8px rgba(18,31,56,.05)}
.nl2-row{display:flex;align-items:center;gap:18px;padding:20px 26px;border-bottom:1px solid #EFF3F8;transition:.2s}
.nl2-row:last-child{border-bottom:0}
.nl2-row:hover{background:#F8FAFE}
.nl2-row:hover .nl2-t{color:var(--blue-700)}
.nl2-date{width:70px;text-align:center;flex-shrink:0;display:flex;flex-direction:column;gap:2px}
.nl2-date strong{font-size:26px;font-weight:700;color:var(--blue);line-height:1.15}
.nl2-date span{font-size:11px;color:var(--muted)}
.nl2-sep{width:1px;height:36px;background:var(--line);flex-shrink:0}
.nl2-t{flex:1;font-size:16px;color:#24364F;font-weight:500;line-height:1.6;transition:.2s}
/* 列表行箭头（CSS mask 图标） */
.nl2-arrow{
  flex-shrink:0;width:12px;height:12px;background:#C0CBDC;transition:.2s;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2 L8 6 L4 10' fill='none' stroke='%23000' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2 L8 6 L4 10' fill='none' stroke='%23000' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center/contain;
}
.nl2-row:hover .nl2-arrow{transform:translateX(3px)}
.nl-tag.tag-b{background:#EAF2FE;color:var(--blue-700)}
.nl-tag.tag-p{background:#F0EBFF;color:var(--purple)}
.nl-tag.tag-g{background:#E4F7EE;color:var(--green)}

/* ---- 分页 ---- */
.pagination{display:flex;justify-content:center;align-items:center;gap:10px;padding:30px 0 44px}
.pg{width:38px;height:38px;border-radius:10px;border:1px solid var(--card-line);background:#fff;display:grid;place-items:center;font-size:15px;color:var(--ink-5);transition:.2s;cursor:pointer}
.pg:hover{border-color:var(--blue-600);color:var(--blue-600)}
.pg.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700;cursor:default}
.pg.prev{color:var(--muted)}

/* ---- 面包屑条 ---- */
.crumb-strip{background:var(--bg-soft);padding:16px 0;font-size:13px;color:#6A7890;margin-top:var(--header-h)}
.crumb-strip .dim{color:var(--muted)}
.crumb-strip a{color:#6A7890;transition:.2s}
.crumb-strip a:hover{color:var(--blue-600)}
.crumb-strip .sep{margin:0 8px;color:#C0CBDC}
.crumb-strip .cur{color:var(--accent);font-weight:500}

/* ---- 新闻正文 ---- */
.article-sec{padding-top:36px;padding-bottom:28px}
.article-card{background:#fff;border:1px solid var(--card-line);border-radius:18px;padding:46px 72px 40px;box-shadow:0 6px 16px -8px rgba(18,31,56,.05)}
.a-tag{display:inline-flex;padding:5px 14px;border-radius:999px;background:#FFF1E3;color:var(--accent);font-size:12px;font-weight:600}
.a-title{margin-top:14px;font-size:30px;font-weight:700;color:var(--ink-2);text-align:center;line-height:1.5;letter-spacing:.5px}
.a-meta{margin-top:16px;display:flex;justify-content:center;align-items:center;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.a-meta i{font-style:normal;color:#C0CBDC}
.a-line{height:1px;background:#EFF3F8;margin:22px 0}
.a-cover{width:100%;border-radius:14px;display:block}
.a-p{font-size:16px;line-height:1.9;color:#24364F;text-indent:2em;margin-top:18px}
.a-sub{display:flex;align-items:center;gap:10px;margin-top:28px}
.a-sub i{width:4px;height:20px;border-radius:2px;background:var(--accent)}
.a-sub h4{font-size:19px;color:var(--ink-2);font-weight:700}
.a-quote{margin-top:18px;display:flex;gap:14px;background:var(--bg-soft);border-radius:12px;padding:18px 22px}
.a-quote i{width:4px;border-radius:2px;background:var(--accent);flex-shrink:0}
.a-quote p{font-size:15px;line-height:1.8;color:var(--ink-5);font-weight:500}
.a-att{margin-top:18px;display:flex;align-items:center;gap:12px;background:var(--bg-soft);border-radius:12px;padding:14px 18px;transition:.2s;cursor:pointer}
.a-att:hover{background:#EAF2FE}
.a-att .name{flex:1;font-size:14px;color:var(--blue-700);font-weight:500}
.a-att .size{font-size:12px;color:var(--muted)}
.a-editor{margin-top:18px;text-align:right;font-size:13px;color:var(--muted)}

/* ---- 上下篇 ---- */
.pn-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-bottom:34px}
.pn-card{background:#fff;border:1px solid var(--card-line);border-radius:14px;padding:18px 24px;transition:.25s}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card);border-color:#C9D8EF}
.pn-card small{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}
.pn-card strong{font-size:15px;color:#24364F;font-weight:500;line-height:1.6}
.pn-card:hover strong{color:var(--blue-700)}

/* ---- 相关资讯 ---- */

/* ---- 二级页面响应式 ---- */
@media (max-width:1100px){
  .article-card{padding:36px 40px}
  .filter-bar{flex-direction:column;align-items:stretch}
  .f-search{width:100%}
}
@media (max-width:768px){
  .page-banner{height:180px}
  .pb-title{font-size:28px}
  .nl2-row{gap:12px;padding:16px 16px}
  .nl2-date{width:54px}
  .nl2-date strong{font-size:22px}
  .nl2-t{font-size:14px}
  .f-tab{padding:8px 16px;font-size:13px}
  .article-card{padding:26px 20px;border-radius:14px}
  .a-title{font-size:22px}
  .a-cover{border-radius:10px}
  .pn-nav{grid-template-columns:1fr;gap:12px}
  .crumb-strip{font-size:12px}
}

/* =========================================================
   容器错峰入场（置于文件末尾以保证覆盖 .quick-card/.n-card 的 .28s 悬停过渡）
   · 参考北大经院：容器内子元素按 0 / .3s / .6s 阶梯入场
   ========================================================= */
.reveal-stagger>*{
  opacity:0;
  transform:translateY(50px);
  transition:opacity .8s ease-in-out,transform .8s ease-in-out;
}
.reveal-stagger.in>*{opacity:1;transform:none}
.reveal-stagger.in>*:nth-child(1){transition-delay:0s}
.reveal-stagger.in>*:nth-child(2){transition-delay:.3s}
.reveal-stagger.in>*:nth-child(3){transition-delay:.6s}
.reveal-stagger.in>*:nth-child(4){transition-delay:.15s}
.reveal-stagger.in>*:nth-child(5){transition-delay:.45s}
.reveal-stagger.in>*:nth-child(6){transition-delay:.75s}

/* 服务入口卡：六张卡三向交错（左 / 上 / 右 / 上 / 左 / 上） */
.quick-grid.reveal-stagger>*:nth-child(1){transform:translateX(-50px)}
.quick-grid.reveal-stagger>*:nth-child(3){transform:translateX(50px)}
.quick-grid.reveal-stagger.in>*{transform:none}

/* 图文封面：入场缓慢推近（Ken Burns），6s linear 对齐参考站节奏。
   分工：入场推近走 transform；悬停放大走独立的 scale 属性。
   两者是不同的 CSS 属性，可叠加生效（最终倍率 = transform × scale），
   因此互不覆盖。若都把 transform 写死，6s 的入场过渡会连累悬停，
   变成"鼠标移上去要 6 秒才放大"或"入场结束后悬停完全没反应"。 */
.reveal .n-cover img{
  transform:scale(1.1);
  transition:transform 6s linear, scale .45s ease;
}
.reveal.in .n-cover img{transform:scale(1)}
.n-card:hover .n-cover img{scale:1.05}

/* =========================================================
   首屏大图缓慢推近（Ken Burns）—— 参考北大经院 Banner 的 6s linear 推近
   用 background-size 实现，避免 transform 影响子元素布局与文字清晰度
   ========================================================= */
@keyframes hero-kenburns{
  from{background-size:auto, auto, 112% auto, auto; background-position:0 0, 0 0, center 56%, 0 0}
  to  {background-size:auto, auto, 100% auto, auto; background-position:0 0, 0 0, center 58%, 0 0}
}
.hero{
  animation:hero-kenburns 6s linear both;
}
@media (prefers-reduced-motion:reduce){
  .hero{animation:none}
}