:root{--bg:#f2f3f5;--card:#fff;--text:#1c1e21;--muted:#65676b;--line:#e2e4e8;--blue:#1677e5;--blue-bg:#e7f1fd;--red:#d4322c;--amber-bg:#fff6dd;--amber:#7a5600}
@media (prefers-color-scheme:dark){:root{--bg:#17181a;--card:#222326;--text:#e8e9eb;--muted:#a3a6ab;--line:#35373b;--blue:#5aa5f5;--blue-bg:#1d3249;--red:#ff7a73;--amber-bg:#3a3018;--amber:#f2d58a}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 -apple-system,BlinkMacSystemFont,"PingFang TC","Hiragino Sans","Noto Sans CJK TC","Segoe UI",sans-serif}
a{color:inherit;text-decoration:none}
h1{font-size:20px;font-weight:600;margin:0}
h2{font-size:16px;font-weight:600;margin:0 0 6px}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 12px;background:var(--card);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px;font-weight:600;font-size:17px}
.brand img{width:30px;height:30px;border-radius:7px}
.bar-icons{display:flex;gap:4px}
.bar-icons a{position:relative;display:flex;width:44px;height:44px;align-items:center;justify-content:center}
.dot{position:absolute;top:3px;right:2px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--red);color:#fff;font-size:11px;line-height:18px;text-align:center}
.page{max-width:640px;margin:0 auto;padding-bottom:40px}
.tabs{display:flex;background:var(--card);border-bottom:1px solid var(--line)}
.tabs a{flex:1;text-align:center;padding:12px 0;color:var(--muted);font-weight:500;border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs a.on{color:var(--blue);border-color:var(--blue)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:10px 12px;background:var(--card);border-bottom:1px solid var(--line);scrollbar-width:none}
.chip{flex:none;max-width:190px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:5px 12px;border:1px solid var(--line);border-radius:16px;font-size:14px;color:var(--muted)}
.chip.on{background:var(--blue-bg);border-color:var(--blue);color:var(--blue)}
.policy{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 12px;background:var(--card);border-bottom:1px solid var(--line);font-size:14px}
.policy select{flex:1;min-width:140px}
.compose,.post,.card,.profile{background:var(--card);border-bottom:1px solid var(--line);padding:12px;margin-top:8px}
.compose-row{display:flex;gap:10px}
.compose select{margin-top:8px;width:100%}
.compose-foot{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:8px}
textarea,input:not([type=checkbox]):not([type=file]),select{width:100%;font:inherit;color:inherit;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:9px 10px}
textarea{resize:vertical}
button{min-height:38px;padding:0 14px;font:inherit;font-size:15px;color:var(--text);background:var(--card);border:1px solid var(--line);border-radius:8px;cursor:pointer}
button.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:500}
button.wide{width:100%;margin-top:12px}
button.danger-btn{color:var(--red);border-color:var(--red);margin-top:8px}
.btn{display:inline-block;padding:7px 14px;border:1px solid var(--line);border-radius:8px;background:var(--card);font-size:15px;cursor:pointer}
.file{display:inline-flex;align-items:center;color:var(--muted);font-size:14px;min-height:38px;cursor:pointer;min-width:0}
.file input{max-width:210px;font-size:13px}
.file{flex-direction:column;align-items:flex-start}
.file span{font-size:12px}
.inline{display:inline;margin-left:6px}
.link-mini{min-height:0;padding:0;border:0;background:none;color:var(--muted);font-size:12px}
.av{flex:none;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--blue-bg);color:var(--blue);font-weight:600}
.av.big{width:64px;height:64px;font-size:24px}
.post-head{display:flex;gap:10px;align-items:flex-start}
.who{flex:1;min-width:0}
.name{font-weight:600;word-break:break-word}
.in-group{margin-left:6px;font-size:13px;color:var(--muted)}
.meta{font-size:13px;color:var(--muted);margin:0}
.bio{margin-top:3px;white-space:pre-wrap;word-break:break-word}
.text{margin:8px 0 0;white-space:pre-wrap;word-break:break-word}
.menu{position:relative}
.menu summary{list-style:none;width:36px;height:32px;text-align:center;color:var(--muted);cursor:pointer;font-size:20px;line-height:28px}
.menu summary::-webkit-details-marker{display:none}
.menu-box{position:absolute;right:0;top:32px;z-index:3;min-width:96px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:4px}
.link{display:block;width:100%;min-height:38px;padding:7px 10px;border:0;background:none;text-align:left;font-size:15px}
.danger{color:var(--red)}
.imgs{display:grid;gap:3px;margin-top:8px;border-radius:8px;overflow:hidden}
.imgs.n2,.imgs.n3,.imgs.n4{grid-template-columns:1fr 1fr}
.imgs.n3 a:first-child{grid-column:1/3}
.imgs img{display:block;width:100%;height:auto;max-height:440px;object-fit:cover;background:var(--bg)}
.imgs.n2 img,.imgs.n3 img,.imgs.n4 img{aspect-ratio:1/1;height:100%}
.imgs.n3 a:first-child img{aspect-ratio:16/9}
.acts{display:flex;gap:16px;margin-top:6px}
.act{display:inline-flex;align-items:center;gap:5px;min-height:38px;min-width:44px;padding:0 4px;border:0;background:none;color:var(--muted);font-size:14px}
.act.on{color:var(--red)}
.act.on .ic{fill:currentColor}
.comments{list-style:none;margin:4px 0 0;padding:8px 10px;background:var(--bg);border-radius:8px;font-size:14px}
.comments li{padding:2px 0;word-break:break-word}
.c-tools{margin-left:6px}
.c-tools .meta{font-size:12px}
.c-form{display:flex;gap:6px;margin-top:8px}
.c-form input{flex:1;min-width:0;padding:7px 10px}
.c-form button{flex:none}
.notice{margin:8px 12px;padding:9px 12px;border-radius:8px;background:var(--amber-bg);color:var(--amber);font-size:14px}
.auth .notice{margin:12px 0}
.error{margin:12px 0;color:var(--red);font-size:14px}
.empty{text-align:center;color:var(--muted);padding:24px 16px 4px;margin:0}
.more{text-align:center;padding:14px 12px;margin:0}
.foot-note{padding:14px 16px;margin:0;font-size:12px;color:var(--muted);text-align:center}
.crumb{margin:0;padding:10px 12px;font-size:14px;color:var(--muted)}
.page-title{padding:14px 12px 4px}
.profile{margin-top:0}
.profile-head{display:flex;align-items:center;gap:14px}
.profile-acts{display:flex;gap:8px;margin-top:12px}
.profile-acts form{margin:0}
.edit-bio{margin-top:12px}
.edit-bio summary{list-style:none;width:max-content}
.edit-bio summary::-webkit-details-marker{display:none}
.edit-bio form{margin-top:8px}
.edit-bio button{margin-top:8px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;background:var(--card);padding:3px}
.grid img{display:block;width:100%;aspect-ratio:1/1;object-fit:cover}
.notifs{list-style:none;margin:8px 0 0;padding:0;background:var(--card)}
.notifs li{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px;border-bottom:1px solid var(--line)}
.notifs li.new{background:var(--blue-bg)}
.notifs .meta{flex:none}
.card .meta{margin-bottom:6px}
.card form{margin-top:8px}
.copy{margin-bottom:8px;font-size:13px}
.auth{max-width:420px;margin:0 auto;padding:40px 20px;text-align:center}
.auth form{text-align:left;margin-top:16px}
.auth label{display:block;font-size:14px;margin-bottom:5px}
.auth-logo{width:72px;height:72px;border-radius:16px}
.auth .meta{margin-top:6px}
.check{display:flex!important;gap:8px;align-items:flex-start;margin-top:12px;font-size:13px;color:var(--muted)}
.check input{margin-top:3px;flex:none}