:root{--c:#0d9488;--cd:#0f766e;--bg:#f4f6f8;--card:#fff;--tx:#1e293b;--mut:#64748b;--line:#e2e8f0;--radius:12px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font:15px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;background:var(--bg);color:var(--tx)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1240px;margin:0 auto;padding:0 16px}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(15,23,42,.96);backdrop-filter:blur(8px);color:#fff}
.site-header .wrap{display:flex;align-items:center;gap:16px;height:60px}
.logo{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:800;letter-spacing:.5px;white-space:nowrap}
.logo svg{flex:none}
.logo b{color:#5eead4}
.site-header nav{display:flex;gap:4px;margin-left:8px}
.site-header nav a{padding:7px 12px;border-radius:8px;color:#cbd5e1;font-size:14px}
.site-header nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.sch{margin-left:auto;position:relative;display:flex;align-items:center}
.sch input{width:min(260px,26vw);padding:8px 14px 8px 34px;border:1px solid rgba(255,255,255,.18);border-radius:20px;background:rgba(255,255,255,.08);color:#fff;font-size:14px;outline:none}
.sch input::placeholder{color:#94a3b8}
.sch input:focus{border-color:#2dd4bf}
.sch svg{position:absolute;left:11px;opacity:.7}
/* hero */
.hero{background:linear-gradient(135deg,#0f172a 0%,#134e4a 70%,#0d9488 100%);color:#fff;padding:44px 0 40px}
.hero h1{font-size:30px;font-weight:800;line-height:1.3}
.hero .sub{color:#a7f3d0;margin-top:10px;font-size:15px;max-width:760px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:6px 14px;font-size:13px;color:#e2e8f0}
.chip b{color:#5eead4;font-size:15px;margin-right:3px}
.ad{display:flex;justify-content:center;padding:12px 0}
.ad img,.ad a{display:block}
/* category tabs */
.catbar{display:flex;gap:8px;overflow-x:auto;padding:18px 0 6px;scrollbar-width:none}
.catbar::-webkit-scrollbar{display:none}
.tab{flex:none;display:inline-flex;align-items:center;gap:6px;padding:8px 15px;border-radius:20px;background:#fff;border:1px solid var(--line);font-size:14px;color:#334155;transition:.15s;cursor:pointer}
.tab .n{font-size:12px;color:var(--mut)}
.tab:hover{border-color:#99f6e4;color:var(--c)}
.tab.on{background:var(--c);border-color:var(--c);color:#fff}
.tab.on .n{color:#ccfbf1}
.toolbar{display:flex;align-items:center;gap:12px;padding:12px 0;color:var(--mut);font-size:13px;border-bottom:1px solid var(--line)}
.toolbar .cnt{flex-shrink:0}
.toolbar .cnt b{color:var(--c);font-size:16px}
.toolbar #searchInput{flex:1;max-width:360px;padding:7px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px;outline:none;background:var(--card);color:var(--fg);transition:border-color .2s}
.toolbar #searchInput:focus{border-color:var(--c)}
.toolbar #searchInput::placeholder{color:#94a3b8}
.toolbar span:last-child{flex-shrink:0;margin-left:auto}
@media(max-width:640px){.toolbar{flex-wrap:wrap}.toolbar #searchInput{order:3;max-width:100%;flex-basis:100%}}
/* lazy load tip */
.loadtip{text-align:center;padding:28px 0 8px;color:#94a3b8;font-size:13px;letter-spacing:1px}
#sentinel{height:1px}
/* card grid */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:18px 0 10px}
@media(max-width:1080px){.grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid{grid-template-columns:1fr}.hero h1{font-size:24px}}
.itm{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s}
.itm:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(15,23,42,.08)}
.cov{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:#e2e8f0}
.cov .im{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.itm:hover .cov .im{transform:scale(1.04)}
.cov .im-ph{display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:800;color:#94a3b8;background:linear-gradient(135deg,#e2e8f0,#f8fafc)}
.bd{padding:13px 14px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.tt{font-size:15px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:43px}
.tt a:hover{color:var(--c)}
.cat{align-self:flex-start;font-size:11px;color:var(--c);background:#f0fdfa;border:1px solid #99f6e4;padding:2px 8px;border-radius:10px}
.dc{font-size:13px;color:var(--mut);line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:64px}
.meta{display:flex;gap:8px;flex-wrap:wrap;font-size:11px;color:var(--mut)}
.meta b,.meta span{background:#f1f5f9;padding:1px 7px;border-radius:6px}
.tg{display:flex;gap:6px;flex-wrap:wrap;min-height:20px}
.tg i{font-style:normal;font-size:11px;color:#475569;border:1px solid var(--line);padding:1px 7px;border-radius:6px}
.act{display:flex;gap:8px;margin-top:auto;padding-top:4px}
.btn{flex:1;text-align:center;background:var(--c);color:#fff!important;padding:8px 10px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;border:none}
.btn:hover{background:var(--cd)}
.lnk{flex:1;text-align:center;border:1px solid var(--c);color:var(--c)!important;padding:8px 10px;border-radius:8px;font-size:13px}
.lnk:hover{background:#f0fdfa}
.hide{display:none!important}
/* sections */
.sec{margin:26px 0;padding:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.sec h2{font-size:18px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.sec h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--c)}
.fl{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:820px){.fl{grid-template-columns:repeat(2,1fr)}}
.fl a{font-size:13px;color:#475569;border:1px solid var(--line);border-radius:8px;padding:8px 12px;text-align:center;transition:.15s}
.fl a:hover{color:var(--c);border-color:#99f6e4}
/* footer */
.site-footer{background:#0f172a;color:#94a3b8;margin-top:40px;padding:34px 0 30px;font-size:13px}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
@media(max-width:820px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer h4{color:#e2e8f0;font-size:14px;margin-bottom:10px}
.site-footer p{line-height:1.8}
.site-footer a:hover{color:#5eead4}
.copy{border-top:1px solid rgba(255,255,255,.08);margin-top:22px;padding-top:16px;text-align:center;color:#64748b;font-size:12px}
#toTop{position:fixed;right:22px;bottom:26px;z-index:60;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:#475569;font-size:17px;cursor:pointer;display:none;box-shadow:0 4px 12px rgba(15,23,42,.08)}
#toTop.show{display:block}
/* ===== detail page ===== */
.breadcrumb{padding:14px 0;font-size:13px;color:var(--mut)}
.breadcrumb a:hover{color:var(--c)}
.breadcrumb span{margin:0 6px;color:#cbd5e1}
.detail-wrap{display:grid;grid-template-columns:1fr 300px;gap:20px;padding:10px 0 30px}
@media(max-width:960px){.detail-wrap{grid-template-columns:1fr}}
.detail-main{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.detail-main h1{font-size:22px;font-weight:800;line-height:1.4;margin-bottom:14px}
.dgallery{position:relative;background:#0f172a;border-radius:10px;overflow:hidden;margin-bottom:16px}
.dgallery .main{width:100%;aspect-ratio:16/9;object-fit:contain;background:#0f172a}
.dgallery .ph{width:100%;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:#475569;font-size:20px;background:#1e293b}
.dthumbs{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.dthumbs img{width:64px;height:44px;object-fit:cover;border-radius:6px;cursor:pointer;border:2px solid transparent;opacity:.7}
.dthumbs img.on{border-color:var(--c);opacity:1}
.dmeta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;font-size:12px}
.dmeta span{background:#f1f5f9;padding:3px 10px;border-radius:6px;color:#475569}
.dmeta .c{color:var(--c);background:#f0fdfa;border:1px solid #99f6e4}
.dtags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.dtags i{font-style:normal;font-size:12px;color:#475569;border:1px solid var(--line);padding:2px 9px;border-radius:6px}
.dintro{font-size:14px;color:#334155;line-height:1.85;margin-bottom:16px;white-space:pre-wrap}
.dintro .label{font-weight:700;color:var(--tx);margin-right:6px}
.daction{display:flex;gap:12px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--line)}
.daction .btn{flex:none;padding:10px 24px;font-size:14px}
.daction .lnk{flex:none;padding:10px 24px;font-size:14px}
/* sidebar */
.detail-side{display:flex;flex-direction:column;gap:16px}
.side-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.side-box h3{font-size:15px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:6px}
.side-box h3::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c)}
.rel-list{display:flex;flex-direction:column;gap:10px}
.rel-item{display:flex;gap:10px;align-items:flex-start}
.rel-item img{width:72px;height:48px;object-fit:cover;border-radius:6px;flex:none;background:#e2e8f0}
.rel-item .t{font-size:13px;line-height:1.45;color:#334155;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-item:hover .t{color:var(--c)}
.rel-item .d{font-size:11px;color:var(--mut);margin-top:3px}
/* qr modal */
.qrmodal{position:fixed;inset:0;z-index:90;background:rgba(15,23,42,.6);display:none;align-items:center;justify-content:center;padding:16px}
.qrmodal.show{display:flex}
.qrmodal .qbox{background:#fff;border-radius:16px;padding:24px;max-width:340px;width:100%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.qrmodal img{width:210px;height:210px;margin:12px auto;border:1px solid var(--line);border-radius:12px;object-fit:contain}
.qrmodal h3{font-size:16px;line-height:1.4}
.qrmodal p{color:var(--mut);font-size:13px;margin-top:8px}
.qrmodal .qclose{position:relative;float:right;border:none;background:none;font-size:22px;color:#94a3b8;cursor:pointer;line-height:1}