:root{--g:#00b35a;--g2:#00c853;--bg:#f3f5f7;--card:#fff;--text:#222;--muted:#999;}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;max-width:480px;margin:0 auto}
a{color:inherit;text-decoration:none}
#app{min-height:100vh;padding-bottom:64px}
.topnav{position:sticky;top:0;z-index:20;display:flex;background:var(--g);height:52px}
.topnav .tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-size:12px;gap:2px;opacity:.85}
.topnav .tab.active{background:#fff;color:var(--g);border-radius:12px 12px 0 0;opacity:1;margin-top:6px}
.topnav .tab .ico{font-size:16px;line-height:1}
.card{background:var(--card);border-radius:14px;margin:12px;padding:14px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.profile{display:flex;align-items:center;gap:12px}
.avatar{width:52px;height:52px;border-radius:50%;background:#e8e8e8;display:flex;align-items:center;justify-content:center;font-size:26px;color:#bbb;overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.btn{border:0;border-radius:20px;padding:8px 14px;font-size:13px;cursor:pointer}
.btn-g{background:var(--g2);color:#fff}
.btn-oline{background:#fff;color:var(--g);border:1px solid var(--g)}
.btn-block{display:block;width:100%;padding:14px;border-radius:12px;font-size:15px;margin:10px 0}
.muted{color:var(--muted);font-size:12px}
.stats{display:flex;gap:12px;margin-top:4px;color:#888;font-size:12px}
.section-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.section-h h3{margin:0;font-size:15px;display:flex;align-items:center;gap:6px}
.chip{background:var(--g);color:#fff;border:0;border-radius:8px 8px 0 0;padding:6px 10px;font-size:12px}
.empty{padding:30px 10px;text-align:center;color:#7ac99a}
.empty span{display:inline-block;border:1px solid #b7e6c8;border-radius:6px;padding:4px 6px;margin:2px;color:#5db87f}
.channels{display:flex;justify-content:space-around;padding:8px 0}
.channels .item{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:12px}
.channels .item .b{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.login-wrap{padding:24px 20px}
.login-wrap h1{margin:8px 0 0;font-size:32px}
.login-wrap h2{margin:6px 0 24px;font-size:16px;font-weight:500;color:#999}
.login-wrap h2 em{color:var(--g);font-style:normal}
.login-hero{width:120px;height:120px;border-radius:50%;background:#d9efff;margin:30px auto;display:flex;align-items:center;justify-content:center;font-size:64px}
.tabs{display:flex;gap:8px;padding:12px;overflow:x:auto}
.tabs button{border:0;background:#fff;border-radius:16px;padding:7px 14px;white-space:nowrap;color:#666}
.tabs button.on{background:var(--g);color:#fff}
.rank-group{margin:0 12px 12px;background:#fff;border-radius:12px;overflow:hidden}
.rank-group .gh{background:#f7faf8;padding:10px 12px;font-weight:600;font-size:14px;border-left:3px solid var(--g)}
.rank-item{display:flex;gap:10px;padding:12px;border-top:1px solid #f0f0f0;align-items:flex-start}
.rank-item .meta{flex:1;min-width:0}
.rank-item .name{font-weight:600;font-size:14px}
.rank-item .sub{color:#888;font-size:12px;margin-top:4px}
.badge{color:#e53935;font-size:12px;font-weight:600}
.post-item{padding:12px;border-top:1px solid #f2f2f2}
.post-item:first-child{border-top:0}
.post-item .t{font-size:15px;font-weight:600;line-height:1.4}
.post-item .c{margin-top:6px;color:#555;font-size:13px;white-space:pre-wrap}
.post-item .f{margin-top:8px;display:flex;justify-content:space-between;color:#999;font-size:12px}
.fab{position:fixed;right:calc(50% - 220px);bottom:76px;width:48px;height:48px;border-radius:50%;background:var(--g);color:#fff;border:0;font-size:28px;box-shadow:0 4px 12px rgba(0,179,90,.35);cursor:pointer}
@media(max-width:480px){.fab{right:18px}}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:50;display:flex;align-items:flex-end;justify-content:center}
.modal .box{background:#fff;width:100%;max-width:480px;border-radius:16px 16px 0 0;padding:16px;max-height:85vh;overflow:auto}
.modal input,.modal textarea,.modal select{width:100%;border:1px solid #e5e5e5;border-radius:10px;padding:10px;margin:6px 0 12px;font-size:14px}
.toast{position:fixed;left:50%;top:40%;transform:translate(-50%,-50%);background:rgba(0,0,0,.78);color:#fff;padding:10px 16px;border-radius:8px;z-index:99;font-size:13px}
.detail{padding:12px}
.detail .title{font-size:18px;font-weight:700;margin:8px 0}
.back{display:inline-flex;align-items:center;gap:4px;color:#666;padding:8px 0;font-size:14px}