:root{
  --bg:#f6f7f9; --surface:#fff; --ink:#1f2328; --muted:#6b7280;
  --accent:#0d9488; --accent-d:#0b7d72; --border:#e8ebef; --radius:12px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16.5px;line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.container{max-width:920px;margin:0 auto;padding:0 16px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:8px 12px;min-height:54px;flex-wrap:wrap;padding:9px 16px}
.brand{font-size:21px;font-weight:800;letter-spacing:.3px;white-space:nowrap}
.nav{display:flex;flex-wrap:wrap;gap:2px 6px;align-items:center;justify-content:flex-end}
.nav a{padding:7px 11px;border-radius:8px;font-size:15px;color:#3a414b}
.nav a:hover{background:#eef1f4;color:var(--ink)}
.nav a.active{color:var(--accent);font-weight:700}
.nav .nav-forum{margin-left:2px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:8px;background:none;border:0;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:55;opacity:0;transition:opacity .25s}
/* 移动/平板：☰ 抽屉菜单 */
@media(max-width:820px){
  .header-inner{min-height:52px;padding:8px 16px}
  .nav-toggle{display:flex}
  .nav{position:fixed;top:0;right:0;height:100dvh;width:76%;max-width:300px;background:#fff;flex-direction:column;flex-wrap:nowrap;align-items:stretch;justify-content:flex-start;gap:0;padding:60px 0 24px;transform:translateX(100%);transition:transform .28s ease;z-index:60;box-shadow:-10px 0 40px rgba(0,0,0,.18);overflow-y:auto}
  .nav a{padding:15px 24px;border-radius:0;font-size:16px;border-bottom:1px solid var(--border);color:var(--ink)}
  .nav a.active{background:#eef7f5;color:var(--accent)}
  .nav .nav-forum{margin:0}
  body.nav-open{overflow:hidden}
  body.nav-open .nav{transform:translateX(0)}
  body.nav-open .nav-overlay{display:block;opacity:1}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* Hero */
.hero{text-align:center;padding:38px 0 26px}
.hero h1{margin:0 0 8px;font-size:27px;font-weight:800;letter-spacing:.5px}
.hero p{margin:0;color:var(--muted);font-size:14.5px}
.page-head{padding:26px 0 6px}
.page-head h1{margin:0;font-size:23px;font-weight:800}

/* Card list */
.card-list{display:flex;flex-direction:column;gap:14px;padding:8px 0 26px}
.card{display:flex;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:box-shadow .18s,transform .18s}
.card:hover{box-shadow:0 8px 26px rgba(20,25,40,.08);transform:translateY(-2px)}
/* 整张卡片可点进入详情（标题链接拉伸覆盖整卡） */
.card{position:relative}
.card-title a::after{content:"";position:absolute;inset:0;z-index:1}
.card-meta{position:relative;z-index:2}
.card-meta .cat{position:relative;z-index:2}
.card-thumb{flex:none;width:132px;height:92px;border-radius:9px;overflow:hidden;background:#f0f2f5}
.card-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:7px}
.card-title{margin:0;font-size:18.5px;font-weight:700;line-height:1.45}
.card-title a:hover{color:var(--accent)}
.badge-top{display:inline-block;font-size:11px;font-weight:700;color:#fff;background:var(--acc,#ff4d6d);background:#ff4d6d;border-radius:5px;padding:1px 7px;margin-right:7px;vertical-align:middle}
.card-excerpt{margin:0;color:var(--muted);font-size:14.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;font-size:12.5px;color:#9aa1ab;display:flex;align-items:center;gap:7px}
.card-meta .cat{color:var(--accent);font-weight:600}
.card-meta .dot{color:#cfd4da}

/* Post */
.post{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:30px 30px 26px;margin:22px auto;max-width:760px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:14px}
.crumbs a:hover{color:var(--accent)}
.post-title{font-size:25px;font-weight:800;line-height:1.35;margin:0 0 12px}
.post-meta{font-size:13px;color:#9aa1ab;display:flex;gap:8px;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:20px}
.post-meta a{color:var(--accent);font-weight:600}
.post-content{font-size:17.5px;line-height:1.95;color:#2a2f37}
.post-content p{margin:0 0 1.15em}
.post-content a{color:var(--accent);border-bottom:1px solid rgba(13,148,136,.35)}
.post-content a:hover{border-bottom-color:var(--accent)}
.post-content img{border-radius:10px;margin:.6em 0}
.post-content strong{color:#1a1e24}
.post-content h2{font-size:20px;margin:1.4em 0 .6em}
.post-content h3{font-size:17.5px;margin:1.2em 0 .5em}
.post-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px}
.post-tags a{font-size:12.5px;color:var(--muted);background:#eef1f4;padding:4px 10px;border-radius:999px}
.post-nav{display:flex;justify-content:space-between;gap:12px;margin-top:26px;padding-top:18px;border-top:1px solid var(--border);font-size:14px}
.post-nav a{color:var(--accent);font-weight:600}

/* Pager */
.pager{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0 34px}
.pager .pg{padding:7px 12px;background:var(--surface);border:1px solid var(--border);border-radius:8px;font-size:14px;font-weight:600;min-width:38px;text-align:center}
.pager .pg:hover{border-color:var(--accent);color:var(--accent)}
.pager .pg.active{background:var(--accent);border-color:var(--accent);color:#fff}
.pager .pg-gap{color:#aab1bd;padding:0 2px}
.pager-jump{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-left:6px}
.pg-input{width:56px;padding:6px 8px;border:1px solid var(--border);border-radius:7px;font-size:14px;text-align:center;outline:none}
.pg-input:focus{border-color:var(--accent)}
.pg-go{padding:6px 12px;background:var(--accent);color:#fff;border:0;border-radius:7px;font-size:13px;font-weight:600;cursor:pointer}
.pg-go:hover{background:var(--accent-d)}
.pager-sentinel{text-align:center;color:#9aa1ab;font-size:13px;padding:16px 0 30px}

/* 标签仅 PC 详情页展示，移动端不显示（复刻原站） */
@media(max-width:640px){.post-tags{display:none}}
/* 移动端隐藏面包屑（顶部导航已吸顶，无需重复） */
@media(max-width:640px){.crumbs{display:none}}

/* Footer */
.site-footer{border-top:1px solid var(--border);background:#fff;margin-top:20px;padding:26px 0}
.foot-links{font-size:13.5px;color:var(--muted);text-align:center;margin-bottom:8px}
.foot-links a{color:var(--accent);font-weight:600}
.foot-copy{text-align:center;font-size:12.5px;color:#9aa1ab}

/* Mobile */
@media(max-width:640px){
  .card{padding:14px 14px;gap:12px}
  .card-title{font-size:17.5px}
  .card-excerpt{font-size:14.5px}
  .post{padding:20px 16px;border-radius:0;border-left:0;border-right:0}
  .post-title{font-size:22px}
  .post-content{font-size:17px;line-height:1.9}
  .brand{font-size:19px}
}