:root{ --brand:#202bf5; --ink:#111827; --muted:#6b7280; --bg:#ffffff; --card:#f8fafc; --ring:rgba(32,43,245,.25) }
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:"Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,Arial,"PingFang SC","Hiragino Sans GB","Microsoft Yahei",sans-serif;color:var(--ink);background:var(--bg)}
img{display:block;max-width:100%}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #eef2f7;backdrop-filter:saturate(180%) blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700}
.nav-links{display:flex;align-items:center;gap:10px}
.btn-link{background:transparent;border:none;color:var(--ink);padding:8px 12px;border-radius:10px;cursor:pointer;text-decoration:none}
.btn-link:hover{background:#f2f5ff}
.btn-outline,.btn-primary{padding:8px 14px;border-radius:12px;border:1px solid var(--brand);cursor:pointer}
.btn-outline{background:#fff;color:var(--brand)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{filter:brightness(.95)}

/* Hero */
.hero{padding:48px 0 28px;background:linear-gradient(180deg,#fff 0%,#f7f9ff 100%)}
.hero h1{font-size:28px;margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 18px}
.search-bar{display:grid;grid-template-columns:1fr repeat(3,180px) 120px;gap:10px}
.search-bar input,.search-bar select{height:44px;padding:0 12px;border:1px solid #e5e7eb;border-radius:12px;outline:none}
.search-bar input:focus,.search-bar select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--ring)}

.chips{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.chip{border:1px solid #e5e7eb;background:#fff;height:34px;padding:0 12px;border-radius:999px;cursor:pointer}
.chip.active,.chip:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 3px var(--ring)}

.disclaimer{margin-top:12px;color:#555;font-size:14px}

/* Hot */
.hot{padding:28px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.section-head h2{margin:0;font-size:22px}
.tabs{display:flex;gap:6px}
.tab{background:#fff;border:1px solid #e5e7eb;height:34px;padding:0 12px;border-radius:999px;cursor:pointer}
.tab.active,.tab:hover{border-color:var(--brand);color:var(--brand)}
.hot-list{display:grid;grid-auto-flow:column;grid-auto-columns:280px;gap:12px;overflow-x:auto;padding-bottom:6px}
.hot-card{background:var(--card);border:1px solid #eef2f7;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;min-height:160px}
.hot-card .meta{color:var(--muted);font-size:12px}
.hot-card .tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;padding:2px 8px;border-radius:999px;background:#eef2ff;color:#2d3ef7}

/* Discover */
.discover{padding:12px 0 4px}
.filters{display:grid;gap:14px}
.filter-group label{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.filter-row{display:flex;gap:8px;flex-wrap:wrap}
.filter{border:1px solid #e5e7eb;background:#fff;height:30px;padding:0 10px;border-radius:999px;cursor:pointer}
.filter.active,.filter:hover{border-color:var(--brand);color:var(--brand)}

/* Results */
.results{padding:10px 0 40px}
.result-actions{display:flex;align-items:center;gap:12px}
.toggle{display:flex;align-items:center;gap:8px;color:var(--muted)}
.result-count{color:var(--muted);margin:6px 0 12px}
.result-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.card{background:#fff;border:1px solid #eef2f7;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:10px}
.card h3{margin:0 0 6px;font-size:16px}
.card .meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:13px}
.card .badges{display:flex;flex-wrap:wrap;gap:6px}
.badge{font-size:12px;padding:2px 8px;border-radius:8px;background:#f2f4f7;color:#525252}
.card .actions{margin-top:auto;display:flex;gap:8px}
.card .actions a, .card .actions button{height:32px;padding:0 10px;border:1px solid #e5e7eb;border-radius:10px;background:#fff;cursor:pointer;text-decoration:none;color:inherit;display:inline-flex;align-items:center}
.card .actions a:hover,.card .actions button:hover{border-color:var(--brand);color:var(--brand)}

/* Post View */
.post{padding:24px 0 40px}
.post .back{display:inline-block;margin:8px 0 10px;color:var(--brand);text-decoration:none}
.post h1{margin:4px 0 10px;font-size:26px}
.post-meta{color:var(--muted);font-size:14px;margin-bottom:14px}
.post-content{line-height:1.75}
.post-content p{margin:12px 0}
.post-gallery{margin-top:18px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.post-gallery img{border-radius:10px;border:1px solid #eef2f7}

/* Footer */
.site-footer{border-top:1px solid #eef2f7;padding-top:16px;background:#fafcff}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.copyright{border-top:1px solid #eef2f7;margin-top:12px;padding:12px 0;color:var(--muted);font-size:14px;text-align:center}

/* Modal */
.modal{border:none;padding:0}
.modal::backdrop{background:rgba(0,0,0,.28)}
.modal-card{width:min(560px,92vw);background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px}
.modal-card h3{margin:0 0 10px}
.modal-card label{display:block;margin:10px 0}
.modal-card input,.modal-card textarea,.modal-card select{width:100%;height:42px;padding:0 10px;border:1px solid #e5e7eb;border-radius:10px}
.modal-card textarea{height:auto;padding:8px 10px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}

/* 响应式 */
@media (max-width:1024px){
  .search-bar{grid-template-columns:1fr 1fr 1fr 120px}
  .result-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .nav{height:56px}
  .nav-links{gap:6px}
  .hero{padding:28px 0 18px}
  .search-bar{grid-template-columns:1fr 1fr}
  .search-bar select:nth-of-type(n+2){display:none}
  .result-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .post-gallery{grid-template-columns:1fr 1fr}
}
:root{
  --brand:#202bf5; /* 32,43,245 */
  --ink:#111827;  /* 主文字 */
  --muted:#6b7280;/* 次文字 */
  --bg:#ffffff;   /* 背景 */
  --card:#f8fafc; /* 卡片 */
  --ring:rgba(32,43,245,.25);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:"Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,Arial,"PingFang SC","Hiragino Sans GB","Microsoft Yahei",sans-serif;color:var(--ink);background:var(--bg)}
img{display:block;max-width:100%}
.container{max-width:1100px;margin:0 auto;padding:0 16px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid #eef2f7;backdrop-filter:saturate(180%) blur(6px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700}
.nav-links{display:flex;align-items:center;gap:10px}
.btn-link{background:transparent;border:none;color:var(--ink);padding:8px 12px;border-radius:10px;cursor:pointer}
.btn-link:hover{background:#f2f5ff}
.btn-outline,.btn-primary{padding:8px 14px;border-radius:12px;border:1px solid var(--brand);cursor:pointer}
.btn-outline{background:#fff;color:var(--brand)}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{filter:brightness(.95)}

/* Hero */
.hero{padding:48px 0 28px;background:linear-gradient(180deg,#fff 0%,#f7f9ff 100%)}
.hero h1{font-size:28px;margin:0 0 8px}
.sub{color:var(--muted);margin:0 0 18px}
.search-bar{display:grid;grid-template-columns:1fr repeat(3,180px) 120px;gap:10px}
.search-bar input,.search-bar select{height:44px;padding:0 12px;border:1px solid #e5e7eb;border-radius:12px;outline:none}
.search-bar input:focus,.search-bar select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--ring)}

.chips{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.chip{border:1px solid #e5e7eb;background:#fff;height:34px;padding:0 12px;border-radius:999px;cursor:pointer}
.chip.active,.chip:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 3px var(--ring)}

.disclaimer{margin-top:12px;color:#555;font-size:14px}

/* Hot */
.hot{padding:28px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.section-head h2{margin:0;font-size:22px}
.tabs{display:flex;gap:6px}
.tab{background:#fff;border:1px solid #e5e7eb;height:34px;padding:0 12px;border-radius:999px;cursor:pointer}
.tab.active,.tab:hover{border-color:var(--brand);color:var(--brand)}
.hot-list{display:grid;grid-auto-flow:column;grid-auto-columns:280px;gap:12px;overflow-x:auto;padding-bottom:6px}
.hot-card{background:var(--card);border:1px solid #eef2f7;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;min-height:160px}
.hot-card .meta{color:var(--muted);font-size:12px}
.hot-card .tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;padding:2px 8px;border-radius:999px;background:#eef2ff;color:#2d3ef7}

/* Discover */
.discover{padding:12px 0 4px}
.filters{display:grid;gap:14px}
.filter-group label{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.filter-row{display:flex;gap:8px;flex-wrap:wrap}
.filter{border:1px solid #e5e7eb;background:#fff;height:30px;padding:0 10px;border-radius:999px;cursor:pointer}
.filter.active,.filter:hover{border-color:var(--brand);color:var(--brand)}

/* Results */
.results{padding:10px 0 40px}
.result-actions{display:flex;align-items:center;gap:12px}
.toggle{display:flex;align-items:center;gap:8px;color:var(--muted)}
.result-count{color:var(--muted);margin:6px 0 12px}
.result-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.card{background:#fff;border:1px solid #eef2f7;border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:10px}
.card h3{margin:0 0 6px;font-size:16px}
.card .meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:13px}
.card .badges{display:flex;flex-wrap:wrap;gap:6px}
.badge{font-size:12px;padding:2px 8px;border-radius:8px;background:#f2f4f7;color:#525252}
.card .actions{margin-top:auto;display:flex;gap:8px}
.card .actions button{height:32px;padding:0 10px;border:1px solid #e5e7eb;border-radius:10px;background:#fff;cursor:pointer}
.card .actions button:hover{border-color:var(--brand);color:var(--brand)}

/* Footer */
.site-footer{border-top:1px solid #eef2f7;padding-top:16px;background:#fafcff}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.copyright{border-top:1px solid #eef2f7;margin-top:12px;padding:12px 0;color:var(--muted);font-size:14px;text-align:center}

/* Modal */
.modal{border:none;padding:0}
.modal::backdrop{background:rgba(0,0,0,.28)}
.modal-card{width:min(560px,92vw);background:#fff;border:1px solid #e5e7eb;border-radius:16px;padding:16px}
.modal-card h3{margin:0 0 10px}
.modal-card label{display:block;margin:10px 0}
.modal-card input,.modal-card textarea,.modal-card select{width:100%;height:42px;padding:0 10px;border:1px solid #e5e7eb;border-radius:10px}
.modal-card textarea{height:auto;padding:8px 10px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}

/* 响应式 */
@media (max-width:1024px){
  .search-bar{grid-template-columns:1fr 1fr 1fr 120px;}
  .result-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  .nav{height:56px}
  .nav-links{gap:6px}
  .hero{padding:28px 0 18px}
  .search-bar{grid-template-columns:1fr 1fr;}
  .search-bar select:nth-of-type(n+2){display:none}
  .result-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}