/* ============================================================
   herbcha / 中草药图谱 — 样式表（绿色自然风，响应式）
   ============================================================ */
:root{
  --green-deep:#1B5E20;
  --green:#2E7D32;
  --green-light:#4CAF50;
  --green-soft:#E8F5E9;
  --orange:#FF6F00;
  --bg:#F8FAF5;
  --card:#FFFFFF;
  --text:#212121;
  --text-2:#616161;
  --border:#E0E7E0;
  --radius:12px;
  --shadow:0 2px 12px rgba(27,94,32,.08);
  --shadow-hover:0 8px 24px rgba(27,94,32,.16);
  --maxw:1100px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--green);text-decoration:none;transition:color .2s;}
a:hover{color:var(--green-deep);}
img{max-width:100%;height:auto;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.logo{display:flex;align-items:center;gap:8px;color:var(--green-deep);font-weight:700;font-size:1.15rem;}
.logo-mark{color:var(--green);flex:0 0 auto;}
.logo-text{white-space:nowrap;}
.main-nav{display:flex;gap:18px;margin-left:8px;}
.main-nav a{color:var(--text-2);font-weight:500;padding:6px 2px;}
.main-nav a:hover{color:var(--green);}
.search-box{margin-left:auto;display:flex;gap:8px;}
.search-box input{
  width:220px;max-width:46vw;padding:9px 12px;border:1px solid var(--border);
  border-radius:999px;outline:none;font-size:.95rem;background:#fff;color:var(--text);
}
.search-box input:focus{border-color:var(--green-light);box-shadow:0 0 0 3px var(--green-soft);}
.search-box button{
  padding:9px 18px;border:none;border-radius:999px;background:var(--green);
  color:#fff;font-weight:600;cursor:pointer;transition:background .2s;
}
.search-box button:hover{background:var(--green-deep);}

/* ---------- Layout ---------- */
.main-content{padding:28px 20px 56px;min-height:60vh;}
.section{margin:34px 0;}
.section-title{
  font-size:1.4rem;color:var(--green-deep);margin:0 0 16px;
  display:flex;align-items:center;gap:10px;
}
.section-title::before{content:"";width:6px;height:22px;border-radius:3px;background:var(--green-light);}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(135deg,var(--green-deep),var(--green) 55%,var(--green-light));
  color:#fff;border-radius:var(--radius);padding:46px 36px;margin-bottom:30px;
  box-shadow:var(--shadow);
}
.hero h1{margin:0 0 10px;font-size:2.1rem;line-height:1.3;}
.hero p{margin:0 0 20px;opacity:.92;font-size:1.05rem;max-width:640px;}
.hero-search{display:flex;gap:10px;max-width:520px;}
.hero-search input{
  flex:1;padding:13px 18px;border:none;border-radius:999px;font-size:1rem;outline:none;
}
.hero-search button{
  padding:13px 28px;border:none;border-radius:999px;background:var(--orange);
  color:#fff;font-weight:700;font-size:1rem;cursor:pointer;transition:filter .2s;
}
.hero-search button:hover{filter:brightness(1.08);}

/* ---------- Cards grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 18px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;
  display:flex;flex-direction:column;gap:8px;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.card h3{margin:0;font-size:1.12rem;color:var(--green-deep);}
.card .card-excerpt{color:var(--text-2);font-size:.92rem;margin:0;flex:1;}
.card .card-link{font-weight:600;font-size:.92rem;}

/* ---------- Herb detail ---------- */
.breadcrumb{font-size:.9rem;color:var(--text-2);margin-bottom:18px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--green);}
.herb-detail{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px 32px;box-shadow:var(--shadow);}
.herb-detail h1{margin:0 0 6px;color:var(--green-deep);font-size:1.9rem;}
.herb-detail .herb-meta{color:var(--text-2);margin-bottom:20px;font-size:.92rem;}
.herb-content{font-size:1.02rem;line-height:1.85;color:var(--text);}
.herb-content p{margin:0 0 12px;}
.herb-content h2,.herb-content h3,.herb-content h4{color:var(--green-deep);margin:22px 0 8px;}
.herb-content strong,.herb-content b{color:var(--green-deep);}
.herb-content table{border-collapse:collapse;width:100%;margin:14px 0;}
.herb-content td,.herb-content th{border:1px solid var(--border);padding:8px 10px;}

.herb-actions{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:10px 22px;border-radius:999px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:all .2s;
}
.btn-primary{background:var(--green);color:#fff;}
.btn-primary:hover{background:var(--green-deep);color:#fff;}
.btn-ghost{background:#fff;color:var(--green);border-color:var(--green-light);}
.btn-ghost:hover{background:var(--green-soft);color:var(--green-deep);}

/* ---------- Related / sidebar lists ---------- */
.rel-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px;}
.rel-list li{margin:0;}
.rel-list a{
  display:inline-block;padding:7px 14px;background:var(--green-soft);
  color:var(--green-deep);border-radius:999px;font-size:.92rem;font-weight:500;
  transition:background .2s;
}
.rel-list a:hover{background:var(--green-light);color:#fff;}
.pn-nav{display:flex;justify-content:space-between;gap:12px;margin-top:24px;flex-wrap:wrap;}
.pn-link{
  flex:1 1 45%;padding:12px 16px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text-2);box-shadow:var(--shadow);font-weight:500;
}
.pn-link:hover{color:var(--green);border-color:var(--green-light);}
.pn-next{text-align:right;}

/* ---------- Search results ---------- */
.search-summary{color:var(--text-2);margin-bottom:16px;}
.result-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px 20px;margin-bottom:14px;box-shadow:var(--shadow);transition:box-shadow .2s;
}
.result-item:hover{box-shadow:var(--shadow-hover);}
.result-item h3{margin:0 0 6px;font-size:1.15rem;color:var(--green-deep);}
.result-item p{margin:0;color:var(--text-2);font-size:.94rem;}
.no-result{
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius);
  padding:40px;text-align:center;color:var(--text-2);
}

/* ---------- Pagination ---------- */
.pager{margin:28px 0;display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;color:var(--text-2);}
.pager a,.pager span{padding:8px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text-2);}
.pager a:hover{background:var(--green-soft);color:var(--green-deep);border-color:var(--green-light);}
.pager .current{background:var(--green);color:#fff;border-color:var(--green);}

/* ---------- Footer ---------- */
.site-footer{background:var(--green-deep);color:#E8F5E9;margin-top:40px;padding:34px 0;}
.footer-inner{display:flex;flex-direction:column;gap:12px;}
.footer-brand{font-size:1.1rem;}
.footer-brand .footer-sub{display:block;font-size:.82rem;opacity:.7;font-weight:400;margin-top:2px;}
.footer-nav{display:flex;gap:18px;flex-wrap:wrap;}
.footer-nav a{color:#E8F5E9;opacity:.85;}
.footer-nav a:hover{color:#fff;opacity:1;}
.disclaimer{font-size:.82rem;opacity:.7;margin:4px 0 0;max-width:760px;}
.copyright{font-size:.8rem;opacity:.6;margin:0;}

/* ---------- Misc ---------- */
.alert{padding:14px 18px;border-radius:var(--radius);margin:16px 0;}
.alert-info{background:var(--green-soft);color:var(--green-deep);border:1px solid var(--green-light);}
.empty-tip{color:var(--text-2);padding:30px;text-align:center;}

/* ---------- Responsive ---------- */
@media (max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 0;gap:10px;}
  .main-nav{order:3;width:100%;justify-content:flex-start;gap:16px;}
  .search-box{order:2;margin-left:auto;}
  .search-box input{width:140px;}
  .hero{padding:32px 22px;}
  .hero h1{font-size:1.6rem;}
  .herb-detail{padding:22px 18px;}
  .herb-detail h1{font-size:1.5rem;}
}
@media (max-width:480px){
  .grid{grid-template-columns:1fr 1fr;gap:12px;}
  .card{padding:14px;}
  .pn-link{flex:1 1 100%;text-align:left !important;}
}