:root{--brand:#0f8f86;--brand-dark:#0b6f68;--brand-bg:#e6f6f4;--accent:#ff7a45;--text:#16181d;--sub:#6b7280;--line:#e7eaee;--bg:#f5f7f7}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0}body{background:var(--bg);color:var(--text);flex-direction:column;min-height:100dvh;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;display:flex}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0}input,select{font:inherit;color:inherit}.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 20px}.topbar{z-index:30;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.topbar .wrap{align-items:center;gap:12px;height:56px;display:flex;position:relative}.icon-btn{color:#3b4048;border-radius:10px;flex:none;place-items:center;width:38px;height:38px;display:grid}.icon-btn:hover{background:#f1f3f5}.menu-btn{margin-left:-8px;display:none}.top-right{align-items:center;gap:10px;margin-left:auto;display:flex}.top-search{border:1px solid #0000;border-radius:99px;align-items:center;transition:border-color .2s,background .2s;display:flex}.top-search input{background:0 0;border:0;outline:none;width:0;height:36px;padding:0;font-size:14px;transition:width .25s,padding .25s}.top-search input::-webkit-search-cancel-button{display:none}.top-search .search-cancel{color:var(--sub);white-space:nowrap;padding:0 12px 0 4px;font-size:14px;display:none}.top-search.open,.top-search.has-q{border-color:var(--line);background:#f4f6f7}.top-search.open input,.top-search.has-q input{width:240px;padding-right:8px}.top-search.open .search-cancel,.top-search.has-q .search-cancel{display:block}.top-search.open .icon-btn:hover{background:0 0}.brand{letter-spacing:.5px;align-items:center;gap:8px;font-size:18px;font-weight:800;display:flex}.brand svg{display:block}.slogan{color:var(--sub);font-size:13px}.user{align-items:center;gap:12px;margin-left:auto;font-size:14px;display:flex}.who{align-items:center;gap:6px;font-weight:600;display:flex}.badge-member{color:var(--brand-dark);background:var(--brand-bg);border-radius:99px;padding:2px 7px;font-size:11px;font-weight:600}.link{color:var(--sub);font-size:14px}.link:hover{color:var(--text)}.btn-sm{background:#eef1f3;border-radius:99px;align-items:center;padding:7px 13px;font-size:13px;font-weight:600;display:inline-flex}.btn-sm.primary{background:var(--brand);color:#fff}.who .name{text-overflow:ellipsis;white-space:nowrap;max-width:140px;overflow:hidden}.home{grid-template-columns:260px minmax(0,1fr);align-items:start;gap:24px;padding-top:20px;display:grid}.side{scrollbar-width:thin;flex-direction:column;gap:14px;max-height:calc(100dvh - 92px);padding-bottom:20px;display:flex;position:sticky;top:76px;overflow-y:auto}.drawer-head,.drawer-user,.side-mask{display:none}.stats{border:1px solid var(--line);background:#fff;border-radius:16px;flex-direction:column;gap:2px;padding:8px;display:flex}.stat{text-align:left;border-radius:11px;align-items:center;gap:12px;width:100%;padding:10px 12px;display:flex}.stat:hover{background:#f6f8f8}.stat.on{background:var(--brand-bg)}.stat-ic{border-radius:9px;flex:none;place-items:center;width:32px;height:32px;display:grid}.stat-ic.all{color:#3b6fd8;background:#e8f0fe}.stat-ic.done{color:#23985a;background:#e5f6ec}.stat-ic.todo{color:#7a808a;background:#f1f2f4}.stat-txt{flex-direction:column;flex:1;min-width:0;display:flex}.stat-txt b{font-size:14px}.stat-txt small{color:var(--sub);white-space:nowrap;text-overflow:ellipsis;font-size:11.5px;overflow:hidden}.stat-n{font-variant-numeric:tabular-nums;font-size:20px;font-weight:700}.stat-n.all{color:#3b6fd8}.stat-n.done{color:#23985a}.stat-n.todo{color:#7a808a}.panel{border:1px solid var(--line);background:#fff;border-radius:16px;padding:4px 16px 16px}.panel h4{margin:16px 0 10px;font-size:14px}.grp-label{color:var(--sub);margin:0 0 8px;font-size:12px}.grp-label+.chips{margin-bottom:12px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);white-space:nowrap;background:#fff;border-radius:99px;padding:5px 12px;font-size:13.5px}.chip:hover{border-color:#cfd5da}.chip.on{background:var(--text);border-color:var(--text);color:#fff}.chip.soon{color:#a3a9b1}.chip.soon small{color:var(--accent);margin-left:4px;font-size:10px}.chips.sub .chip{background:0 0;padding:4px 11px;font-size:13px}.chips.sub .chip.on{background:var(--brand-bg);border-color:var(--brand);color:var(--brand-dark)}.seg{background:#eceff1;border-radius:10px;padding:3px;display:flex}.seg button{color:#444a52;border-radius:8px;flex:1;padding:5px 0;font-size:13px}.seg button.on{color:var(--text);background:#fff;font-weight:600;box-shadow:0 1px 3px #00000014}.panel select{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;height:36px;padding:0 10px;font-size:13.5px}.panel .clear{width:100%;height:36px;color:var(--brand-dark);background:#f4f6f7;border-radius:10px;margin-top:16px;font-size:13.5px;font-weight:600}.panel .clear[hidden]{display:none}.main{min-width:0}.quick{display:none}.main-head{align-items:baseline;gap:10px;margin:2px 0 14px;display:flex}.main-head b{font-size:17px}.main-head span{color:var(--sub);font-size:13px}@media (width<=860px){.menu-btn{display:grid}.slogan{display:none}.top-right{gap:4px}.top-right .user .who,.top-right .user .logout-btn,.top-right .user .login-link{display:none}.top-right .user .btn-sm{padding:6px 11px;font-size:12.5px}.top-search.open,.top-search.has-q{z-index:2;background:#f4f6f7;position:absolute;inset:8px 12px}.top-search.open input,.top-search.has-q input{flex:1;width:auto;font-size:16px}.home{padding-top:0;display:block}.side{z-index:50;background:var(--bg);width:min(320px,86vw);max-height:none;padding:0 14px calc(20px + env(safe-area-inset-bottom));transition:transform .25s;position:fixed;top:0;bottom:0;left:0;transform:translate(-102%);box-shadow:10px 0 30px #0000001f}body.side-open{overflow:hidden}body.side-open .side{transform:none}.side-mask{z-index:45;opacity:0;pointer-events:none;background:#00000059;transition:opacity .2s;display:block;position:fixed;inset:0}body.side-open .side-mask{opacity:1;pointer-events:auto}.drawer-head{z-index:1;background:var(--bg);justify-content:space-between;align-items:center;padding:12px 0 6px;display:flex;position:sticky;top:0}.drawer-head b{font-size:16px}.drawer-user{border:1px solid var(--line);background:#fff;border-radius:16px;flex-wrap:wrap;align-items:center;gap:12px;padding:12px 14px;font-size:14px;display:flex}.drawer-user .logout-btn,.drawer-user .btn-sm{margin-left:auto}.quick{scrollbar-width:none;flex-wrap:nowrap;margin:0 -20px;padding:12px 20px 4px;display:flex;overflow-x:auto}.quick::-webkit-scrollbar{display:none}.main-head{margin:8px 0 12px}.main-head b{font-size:15px}.main-head span{font-size:12px}}.grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px 16px;margin:0 0 40px;display:grid}.thumb .learned,.thumb .learning{border-radius:6px;padding:3px 7px;font-size:11px;font-weight:600;position:absolute;top:8px;right:8px}.thumb .learned{color:#fff;background:#23985a}.thumb .learning{color:var(--brand-dark);background:#ffffffeb}.thumb .prog{background:var(--brand);height:3px;position:absolute;bottom:0;left:0}.card{border:1px solid var(--line);background:#fff;border-radius:14px;transition:transform .15s,box-shadow .15s;display:block;overflow:hidden}.card:hover{transform:translateY(-2px);box-shadow:0 10px 24px #00000014}.thumb{aspect-ratio:16/9;background:#dfe5e6 50%/cover no-repeat;position:relative}.thumb .dur{color:#fff;font-variant-numeric:tabular-nums;background:#0009;border-radius:5px;padding:2px 6px;font-size:11.5px;position:absolute;bottom:8px;right:8px}.badge{border-radius:6px;padding:3px 8px;font-size:11.5px;font-weight:600;position:absolute;top:8px;left:8px}.badge.free{background:var(--accent);color:#fff}.badge.lock{color:#fff;background:#0009;align-items:center;gap:4px;display:flex}.meta{padding:10px 12px 12px}.meta .title{-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:15px;font-weight:600;line-height:1.4;display:-webkit-box;overflow:hidden}.meta .cat{color:var(--sub);margin-top:4px;font-size:12.5px}.meta .tags{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.meta .tags 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24px 24px}.auth-card .brand{justify-content:center;font-size:20px}.auth-card h1{text-align:center;margin:14px 0 4px;font-size:18px}.auth-card .lead{text-align:center;color:var(--sub);margin:0 0 20px;font-size:13px;line-height:1.6}.field{margin-bottom:14px;display:block}.field>span:first-child{margin-bottom:7px;font-size:14px;font-weight:600;display:block}.field>span:first-child i{color:#e5484d;margin-left:2px;font-style:normal}.field>span:first-child em{color:var(--sub);font-size:12.5px;font-style:normal;font-weight:400}.field input{border:1px solid var(--line);background:#f6f7f9;border-radius:12px;outline:none;width:100%;height:46px;padding:0 14px;font-size:15px}.field input::placeholder{color:#a3a9b1}.field input:focus{border-color:var(--brand);background:#fff}.field small{color:var(--sub);margin-top:6px;font-size:12.5px;display:block}.field small a{color:var(--brand);font-weight:600}.pw{display:block;position:relative}.pw input{padding-right:46px}.pw .eye{color:#8a9099;border-radius:8px;place-items:center;width:36px;height:36px;display:grid;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.pw .eye:hover{color:var(--text)}.code-input{letter-spacing:1.5px;text-transform:uppercase}.code-input::placeholder{letter-spacing:0;text-transform:none}.agree{color:var(--sub);cursor:pointer;flex-wrap:wrap;align-items:center;gap:8px;margin:4px 0 14px;font-size:13px;display:flex}.agree input{width:18px;height:18px;accent-color:var(--brand);margin:0}.agree a{color:var(--brand)}.submit{background:var(--brand);color:#fff;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;height:48px;margin-top:6px;font-size:15.5px;font-weight:600;display:flex}.submit:hover{background:var(--brand-dark)}.submit:disabled{opacity:.6}.error{color:#d93f3f;text-align:center;min-height:20px;margin:4px 0 0;font-size:13px}.alt{text-align:center;color:var(--sub);margin-top:16px;font-size:13.5px;line-height:1.8}.alt a{color:var(--brand);font-weight:600}.kefu{color:inherit;background:#f1faf8;border:1px solid #d5efeb;border-radius:14px;align-items:center;gap:14px;margin-top:18px;padding:12px;text-decoration:none;display:flex}.kefu:hover{border-color:var(--brand)}.kefu img{background:#fff;border-radius:8px;flex:none;width:84px;height:84px}.kefu-text{color:var(--sub);flex-direction:column;gap:4px;font-size:12.5px;line-height:1.6;display:flex}.kefu-text b{color:var(--text);font-size:14px}.kefu-text em{color:var(--brand);font-style:normal;font-weight:600}.kefu-note{text-align:center;color:var(--sub);margin:10px 0 0;font-size:12px}.kefu-big{z-index:100;background:#0000008c;place-items:center;padding:20px;display:none;position:fixed;inset:0}.kefu-big.show{display:grid}.kefu-big-card{text-align:center;background:#fff;border-radius:18px;width:min(340px,100%);padding:14px 14px 16px}.kefu-big-card img{border-radius:10px;width:100%;display:block}.kefu-big-card p{color:var(--sub);margin:10px 0 12px;font-size:13px;line-height:1.7}.kefu-big-card button{background:#f1f3f6;border-radius:12px;width:100%;height:42px;font-size:14px}.buy{color:#9a4b1c;background:#fff6ef;border-radius:12px;margin-top:18px;padding:12px 14px;font-size:13px;line-height:1.7}.lock-modal{z-index:100;background:#00000073;place-items:center;padding:20px;display:none;position:fixed;inset:0}.lock-modal.show{display:grid}.lock-box{text-align:center;background:#fff;border-radius:20px;width:min(380px,100%);max-height:calc(100dvh - 40px);padding:28px 22px 22px;animation:.18s ease-out pop;position:relative;overflow-y:auto}@keyframes pop{0%{opacity:0;transform:scale(.96)}}.lock-close{color:#8a9099;position:absolute;top:8px;right:8px}.lock-ic{background:var(--brand-bg);width:52px;height:52px;color:var(--brand);border-radius:50%;place-items:center;margin:0 auto 12px;display:grid}.lock-box h3{margin:0 0 4px;font-size:18px}.lock-box .lock-title{color:var(--sub);margin:0 0 12px;font-size:13px}.lock-box p{color:#4b5059;margin:0 0 16px;font-size:14px;line-height:1.7}.lock-actions{flex-direction:column;gap:10px;display:flex}.lock-btn{background:#f1f3f6;border-radius:12px;justify-content:center;align-items:center;height:46px;font-size:15px;font-weight:600;display:flex}.lock-btn.primary{background:var(--brand);color:#fff}.lock-btn.primary:hover{background:var(--brand-dark)}.lock-buy{color:var(--brand);margin-top:14px;font-size:13px;font-weight:600}.lock-buy[hidden],.lock-buy-qr[hidden]{display:none}.lock-buy-qr{border-top:1px dashed var(--line);margin-top:14px;padding-top:14px}.lock-qr{width:150px;height:150px;margin:0 auto 8px;display:block}.lock-box .lock-tip{color:var(--sub);margin:0;font-size:12.5px}.doc{border:1px solid var(--line);background:#fff;border-radius:18px;width:100%;max-width:760px;margin:24px auto 40px;padding:28px 28px 32px;font-size:14.5px;line-height:1.8}.doc h1{margin:0 0 4px;font-size:22px}.doc .date{color:var(--sub);margin:0 0 18px;font-size:13px}.doc h2{margin:24px 0 8px;font-size:16px}.doc ul{margin:0;padding-left:20px}.doc li{margin-bottom:6px}.doc .back{margin-top:28px}.doc .back a{color:var(--brand);font-weight:600}@media (width<=560px){.doc{border:0;border-radius:0;margin:0;padding:20px 18px 28px}}.footer{text-align:center;color:#9aa0a8;margin-top:auto;padding:22px 16px 30px;font-size:12px;line-height:1.8}.site-toast{z-index:99;color:#fff;opacity:0;pointer-events:none;text-align:center;background:#141418db;border-radius:10px;max-width:80%;padding:10px 16px;font-size:14px;transition:opacity .2s;position:fixed;top:40%;left:50%;transform:translate(-50%,-50%)}.site-toast.show{opacity:1}
