/* ===========================================================
   议泽科技 · BH8DZE  个人网站  共享样式
   =========================================================== */
:root{
  --brand:#14568f;
  --brand-2:#2a7fc9;
  --brand-3:#0f4270;
  --accent:#f0a742;
  --bg:#f6f8fb;
  --surface:#ffffff;
  --text:#1b2431;
  --muted:#647082;
  --border:#e5eaf1;
  --radius:16px;
  --shadow-sm:0 2px 8px rgba(20,56,90,.06);
  --shadow-md:0 10px 30px rgba(20,56,90,.10);
  --shadow-lg:0 18px 50px rgba(20,56,90,.16);
  --maxw:1120px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-2);text-decoration:none;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  height:66px;display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.2px;}
.brand:hover{color:var(--text);}
.brand img{
  width:38px;height:38px;border-radius:9px;object-fit:contain;
  background:var(--brand);padding:3px;box-shadow:var(--shadow-sm);
}
.brand span small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:1.5px;margin-top:-2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;color:var(--muted);font-size:15px;font-weight:500;
  padding:8px 14px;border-radius:9px;transition:.2s;
}
.nav-links a:hover{color:var(--brand);background:rgba(42,127,201,.08);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand-2);
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);
  background:var(--surface);border-radius:10px;cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:.2s;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 通用 ---------- */
.section{padding:64px 0;}
.section.tight{padding:44px 0;}
.section-head{margin-bottom:34px;max-width:720px;}
.section-head h2{font-size:28px;margin:0 0 8px;letter-spacing:-.3px;}
.section-head p{margin:0;color:var(--muted);font-size:15.5px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--brand-2);text-transform:uppercase;margin-bottom:10px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:12px;font-size:15px;font-weight:600;
  cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s;
  border:1px solid transparent;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 8px 22px rgba(20,88,143,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(20,88,143,.36);}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--border);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;
  padding:3px 10px;border-radius:999px;background:rgba(42,127,201,.10);color:var(--brand);
}
.badge.accent{background:rgba(240,167,66,.16);color:#a6701a;}
.badge.gray{background:#eef1f6;color:var(--muted);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1200px 500px at 80% -10%,rgba(42,127,201,.55),transparent 60%),
    radial-gradient(900px 500px at -10% 110%,rgba(42,127,201,.35),transparent 55%),
    linear-gradient(135deg,#0f4270,#14568f 55%,#1c6cab);
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.10;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.hero-inner{position:relative;z-index:1;padding:82px 0 90px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(4px);margin-bottom:20px;
}
.hero h1{font-size:46px;line-height:1.15;margin:0 0 16px;letter-spacing:-1px;font-weight:800;}
.hero h1 .thin{font-weight:300;opacity:.85;}
.hero p{font-size:18px;color:rgba(255,255,255,.86);max-width:620px;margin:0 0 32px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero .btn-ghost{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.35);backdrop-filter:blur(4px);}
.hero .btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;}
.hero-stats{display:flex;gap:40px;margin-top:44px;flex-wrap:wrap;}
.hero-stats .num{font-size:30px;font-weight:800;letter-spacing:-.5px;}
.hero-stats .lab{font-size:13.5px;color:rgba(255,255,255,.72);}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:22px;}
.grid.cols-3{grid-template-columns:repeat(3,1fr);}
.grid.cols-2{grid-template-columns:repeat(2,1fr);}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#d3dfec;}
.card .ic{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:24px;background:rgba(42,127,201,.10);margin-bottom:16px;
}
.card h3{margin:0 0 8px;font-size:18.5px;}
.card p{margin:0 0 16px;color:var(--muted);font-size:14.5px;flex:1;}
.card .card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;font-weight:600;}
.card .card-foot a{display:inline-flex;align-items:center;gap:6px;}

/* ---------- 下载专区 ---------- */
.dl-zone{
  background:var(--surface);border:1px solid var(--border);border-radius:20px;
  padding:8px 26px 22px;box-shadow:var(--shadow-sm);margin-bottom:28px;
}
.dl-zone-head{display:flex;align-items:center;gap:14px;padding:22px 0 16px;border-bottom:1px solid var(--border);}
.dl-zone-head .zi{
  width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:23px;background:rgba(42,127,201,.10);flex:none;
}
.dl-zone-head h3{margin:0;font-size:21px;}
.dl-zone-head p{margin:2px 0 0;color:var(--muted);font-size:13.5px;}
.dl-row{
  display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px dashed var(--border);
}
.dl-row:last-child{border-bottom:none;}
.dl-row .fi{
  width:44px;height:44px;border-radius:11px;flex:none;display:flex;align-items:center;justify-content:center;
  font-size:20px;background:#eef4fb;border:1px solid #dbe8f6;
}
.dl-row .meta{flex:1;min-width:0;}
.dl-row .meta .name{font-weight:600;font-size:15.5px;display:flex;align-items:center;gap:9px;flex-wrap:wrap;}
.dl-row .meta .sub{color:var(--muted);font-size:12.8px;margin-top:3px;}
.dl-row .btn{padding:10px 20px;font-size:14px;flex:none;}
.dl-empty{
  text-align:center;padding:40px 20px;color:var(--muted);
}
.dl-empty .big{font-size:38px;margin-bottom:10px;opacity:.5;}

/* ---------- 作品列表 ---------- */
.work-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.status-soon{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:rgba(240,167,66,.16);color:#a6701a;}

/* ---------- 关于我 ---------- */
.about-grid{display:grid;grid-template-columns:320px 1fr;gap:44px;align-items:start;}
.about-card{
  background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:32px 26px;
  text-align:center;box-shadow:var(--shadow-md);position:sticky;top:90px;
}
.about-card img{width:96px;height:96px;border-radius:22px;object-fit:contain;background:var(--brand);padding:8px;margin:0 auto 16px;box-shadow:var(--shadow-sm);}
.about-card h3{margin:0 0 4px;font-size:21px;}
.about-card .call{color:var(--brand-2);font-weight:700;letter-spacing:1px;margin-bottom:14px;}
.about-card .kv{text-align:left;border-top:1px solid var(--border);padding-top:16px;margin-top:4px;}
.about-card .kv div{display:flex;justify-content:space-between;padding:7px 0;font-size:14px;}
.about-card .kv div span:first-child{color:var(--muted);}
.about-body h2{font-size:24px;margin:0 0 14px;}
.about-body p{color:#3a4557;margin:0 0 16px;font-size:15.5px;}
.about-body h2:not(:first-child){margin-top:34px;}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 4px;}
.chip{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:7px 16px;font-size:14px;font-weight:500;box-shadow:var(--shadow-sm);}

/* ---------- 动态/博客 ---------- */
.post-list{display:flex;flex-direction:column;gap:16px;}
.post-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px 26px;transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:var(--shadow-sm);
}
.post-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d3dfec;}
.post-item .date{font-size:13px;color:var(--muted);letter-spacing:.5px;}
.post-item h3{margin:6px 0 8px;font-size:20px;}
.post-item p{margin:0;color:var(--muted);font-size:14.5px;}
.post-item .tags{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap;}
.article{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:40px;box-shadow:var(--shadow-sm);max-width:820px;margin:0 auto;}
.article h1{font-size:30px;margin:0 0 10px;letter-spacing:-.5px;}
.article .meta{color:var(--muted);font-size:14px;margin-bottom:26px;padding-bottom:22px;border-bottom:1px solid var(--border);}
.article p{color:#3a4557;font-size:16px;margin:0 0 16px;}
.article h2{font-size:21px;margin:30px 0 12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0f4270;color:rgba(255,255,255,.72);margin-top:20px;}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:44px 24px 28px;display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;}
.footer-brand{max-width:320px;}
.footer-brand .b{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:10px;}
.footer-brand .b img{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.12);padding:3px;}
.footer-brand p{font-size:13.5px;line-height:1.7;margin:0;}
.footer-links{display:flex;gap:56px;flex-wrap:wrap;}
.footer-col h4{color:#fff;font-size:14px;margin:0 0 12px;font-weight:600;}
.footer-col a{display:block;color:rgba(255,255,255,.68);font-size:13.5px;margin-bottom:9px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:18px 24px;font-size:12.5px;color:rgba(255,255,255,.55);}

/* ---------- 返回顶部提示（小而美） ---------- */
.note{
  background:linear-gradient(135deg,rgba(42,127,201,.07),rgba(240,167,66,.07));
  border:1px solid var(--border);border-radius:14px;padding:16px 20px;font-size:14px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .grid.cols-3{grid-template-columns:repeat(2,1fr);}
  .about-grid{grid-template-columns:1fr;gap:26px;}
  .about-card{position:static;}
}
@media (max-width:720px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--surface);border-bottom:1px solid var(--border);padding:10px 16px 16px;
    box-shadow:var(--shadow-md);display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 14px;}
  .nav-links a.active::after{display:none;}
  .hero h1{font-size:34px;}
  .hero-inner{padding:56px 0 62px;}
  .hero p{font-size:16px;}
  .grid.cols-3,.grid.cols-2{grid-template-columns:1fr;}
  .section{padding:46px 0;}
  .section-head h2{font-size:23px;}
  .dl-zone{padding:6px 18px 18px;}
  .dl-row{flex-wrap:wrap;gap:12px;}
  .dl-row .btn{width:100%;}
  .article{padding:26px 20px;}
  .footer-inner{flex-direction:column;gap:24px;}
  .footer-links{gap:36px;}
}