:root{--bg:#f6f7fb;--card:#fff;--ink:#14162b;--mute:#636a85;--line:#e6e8f2;--brand:#4f46e5;--brand2:#4338ca;--acc:#06b6d4;--r:14px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.top{background:#0f1023;color:#fff}
.top-in{display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:12px}
.logo{display:flex;align-items:center;gap:11px;color:#fff}.logo:hover{text-decoration:none}
.logo-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#6366f1,#06b6d4);color:#fff;font:800 21px/1 system-ui,sans-serif;box-shadow:0 4px 14px rgba(99,102,241,.45)}
.logo-txt{font-weight:800;font-size:21px;line-height:1.1;letter-spacing:-.3px}.logo-txt em{font-style:normal;background:linear-gradient(90deg,#a5b4fc,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.logo-txt small{display:block;font-weight:500;font-size:11.5px;opacity:.7;letter-spacing:.2px}
.userbox{display:flex;align-items:center;gap:12px;font-size:14px}.userbox a{color:#e0e7ff}
.btn,.search button,.mod button{display:inline-block;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;border:0;border-radius:999px;padding:7px 16px;font:600 14px/1.4 inherit;cursor:pointer}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.linkbtn{background:none;border:0;color:#e0e7ff;cursor:pointer;font:inherit;padding:0}.inline{display:inline}.hello{color:#c7d2fe}
.tag{display:inline-block;background:#eef2ff;color:#4338ca;font-size:11px;font-weight:700;padding:1px 8px;border-radius:999px;margin-left:4px;vertical-align:middle}
.tag.pin{background:#cffafe;color:#0e7490;margin:0}.tag.op{background:#dcfce7;color:#166534}
.nav{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.nav-in{display:flex;align-items:center;gap:12px}
.nav-links{display:flex;flex-wrap:wrap;gap:2px 4px;flex:1;padding:4px 0}
.nav-links a{padding:7px 9px;white-space:nowrap;color:var(--ink);font-size:14px}.nav-links a:hover{color:var(--brand2);text-decoration:none;box-shadow:inset 0 -2px var(--brand2)}
.search{display:flex;gap:6px}.search input{width:190px;padding:6px 10px;border:1px solid var(--line);border-radius:6px;font:inherit}
main{padding:18px 16px 30px}
.hero{background:radial-gradient(1200px 300px at 0 0,#6366f1 0,transparent 60%),linear-gradient(135deg,#1e1b4b,#0e7490);color:#fff;border-radius:var(--r);padding:30px 28px;margin-bottom:18px}
.hero h1{margin:0 0 8px;font-size:28px;letter-spacing:-.5px;line-height:1.2}.hero p{margin:0;color:#c7d2fe;max-width:720px}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:16px;font-size:14px;color:#c7d2fe}.hero-stats b{color:#fff;font-size:17px}.hero .btn{background:#fff;color:#312e81}
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:980px){.grid{grid-template-columns:1.25fr 1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-bottom:18px;box-shadow:0 1px 3px rgba(20,22,43,.05)}
.card.narrow{max-width:460px;margin:30px auto}
.card-h{padding:11px 16px;border-bottom:1px solid var(--line);font-weight:700;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;background:#fbfbfe}
.card-h .sub{font-weight:400;font-size:13px;color:var(--mute)}
.cat-row,.thread-row{display:flex;align-items:center;gap:14px;padding:12px 16px;border-bottom:1px solid var(--line)}
.cat-row:last-child,.thread-row:last-child{border-bottom:0}
.cat-icon{font-size:24px;width:40px;height:40px;display:grid;place-items:center;background:linear-gradient(135deg,#eef2ff,#ecfeff);border-radius:12px;flex:none}
.cat-main,.thread-main{flex:1;min-width:0}
.cat-name{font-weight:600;font-size:15.5px}.cat-desc{color:var(--mute);font-size:13px}
.cat-last{width:200px;font-size:12px;color:var(--mute);flex:none;overflow:hidden}
.cat-stat,.thread-stat{width:88px;text-align:right;font-size:12px;color:var(--mute);flex:none}.cat-stat b,.thread-stat b{color:var(--ink)}
.thread-title{font-weight:600;color:var(--ink)}.thread-title:hover{color:var(--brand2)}
.thread-meta{font-size:12.5px;color:var(--mute);margin-top:2px}
.cat-chip{background:#eef2ff;padding:1px 8px;border-radius:999px;font-size:12px}
.breadcrumb{font-size:13px;color:var(--mute);margin-bottom:10px}
.thread-head{padding:16px;border-bottom:1px solid var(--line)}.thread-head h1{margin:0 0 6px;font-size:21px;line-height:1.35}
.thread-head .meta{font-size:13px;color:var(--mute)}
.mod{margin-top:8px;display:flex;gap:6px}.mod button{background:#eef2ff;color:#3730a3;font-size:12px;padding:3px 12px}
.post{display:flex;border-bottom:1px solid var(--line)}.post:last-child{border-bottom:0}
.post-side{width:150px;flex:none;padding:16px;background:#fbfbfe;border-right:1px solid var(--line);text-align:center;font-size:13px}
.avatar{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#06b6d4);color:#fff;font-weight:700;font-size:19px}
.post-author{font-weight:600;margin-top:6px;word-break:break-all}.post-role{color:var(--mute);font-size:12px}
.post-body{flex:1;min-width:0;padding:14px 18px}
.post-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--mute);margin-bottom:8px}.floor{color:var(--mute)}
.post-content{overflow-wrap:anywhere;font-size:15px;line-height:1.75}
.form{padding:16px;display:flex;flex-direction:column;gap:12px}
.form label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:600}
.form input,.form textarea,.form select{font:inherit;font-weight:400;padding:8px 10px;border:1px solid #d5d8e8;border-radius:10px;width:100%;background:#fff}
.form textarea{resize:vertical}.form-row{display:flex;gap:8px}.hint{font-size:13px;color:var(--mute)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.notice{padding:8px 12px;border-radius:6px;font-size:14px}.notice.err{background:#fde8e8;color:#9b1c1c}
.empty{padding:20px 16px;color:var(--mute);text-align:center}
.pager{display:flex;flex-wrap:wrap;gap:4px;margin:0 0 16px}.pager a,.pager span{padding:4px 11px;border:1px solid var(--line);border-radius:5px;background:#fff;font-size:13px}
.pager .cur{background:var(--brand);color:#fff;border-color:var(--brand)}
footer{border-top:1px solid var(--line);background:#fff;padding:18px 0 24px;font-size:13px;color:var(--mute)}
.friends{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:8px}.friends span{font-weight:600;color:var(--ink)}
@media(max-width:760px){
 .logo-txt small{display:none}.nav-in{flex-direction:column;align-items:stretch;gap:0}.search{padding:0 0 8px}.search input{flex:1;width:auto}
 .cat-last{display:none}.cat-stat,.thread-stat{width:70px}
 .post{flex-direction:column}.post-side{width:auto;display:flex;align-items:center;gap:10px;text-align:left;border-right:0;border-bottom:1px solid var(--line);padding:10px 14px}
 .avatar{width:34px;height:34px;font-size:15px}.post-author{margin:0}.post-body{padding:12px 14px}
}