:root{--primary: #14b8a6;--deep: #0f766e;--light: #f0fdfa;--mint: #ccfbf1;--bg: #f5f8f8;--card: #ffffff;--text: #0f172a;--sub: #475569;--muted: #94a3b8;--line: #e8eef0;--gold: #92400e;--gold-bg: #fef6e4;--red: #ef4444;--amber: #d97706;--amber-bg: #fffbeb;--grad: linear-gradient(135deg, #2dd4bf, #0d9488);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Noto Sans SC,Microsoft YaHei,sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button{font:inherit;border:none;background:none;padding:0;color:inherit;cursor:pointer}input{font:inherit;color:inherit}a{color:inherit;text-decoration:none}.page{max-width:480px;min-height:100vh;min-height:100dvh;margin:0 auto;padding:16px 16px calc(24px + var(--safe-bottom));background:var(--bg);position:relative}.page.with-tab{padding-bottom:calc(96px + var(--safe-bottom))}.card{background:var(--card);border-radius:18px;padding:16px}.btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;height:52px;border-radius:26px;background:var(--primary);color:#fff;font-size:17px;font-weight:700}.btn:disabled{opacity:.45;cursor:default}.btn.ghost{background:var(--light);color:var(--deep)}.nav{display:flex;align-items:center;height:44px;margin-bottom:8px}.nav .back{width:36px;height:36px;display:flex;align-items:center;margin-left:-6px}.nav h1{flex:1;text-align:center;font-size:17px;margin:0 36px 0 0}.section-head{display:flex;align-items:center;justify-content:space-between;margin:0 0 12px}.section-head h2{font-size:18px;margin:0}.section-head .more{display:flex;align-items:center;color:var(--muted);font-size:14px}.toast{position:fixed;left:50%;top:40%;transform:translate(-50%);z-index:100;max-width:80vw;padding:10px 18px;border-radius:12px;background:#0f172adb;color:#fff;font-size:14px;text-align:center}.md{font-size:15px;line-height:1.75;color:var(--text);overflow-wrap:anywhere}.md h1{font-size:18px;margin:18px 0 6px}.md h2{font-size:16px;margin:18px 0 6px;display:flex;align-items:center;gap:8px}.md h2:before{content:"";width:4px;height:16px;border-radius:2px;background:var(--primary);flex:none}.md h3{font-size:15px;margin:12px 0 4px}.md>:first-child{margin-top:0}.md ul,.md ol{padding-left:20px;margin:4px 0}.md li{margin:4px 0}.md li::marker{color:var(--primary)}.md li:has(input){list-style:none;margin-left:-20px}.md input[type=checkbox]{width:16px;height:16px;margin:0 8px 0 0;vertical-align:-2px;accent-color:var(--primary)}.md .tags{display:inline-flex;gap:6px;margin-left:6px;vertical-align:1px}.md .tag{padding:1px 8px;border-radius:10px;font-size:12px}.md .who{background:var(--bg);color:var(--sub)}.md .due{background:var(--amber-bg);color:var(--amber)}.md p{margin:6px 0}.md blockquote{margin:6px 0;padding-left:12px;border-left:3px solid var(--line);color:var(--sub)}.mask{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0f172a73;display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:480px;max-height:85vh;overflow-y:auto;background:#fff;border-radius:22px 22px 0 0;padding:18px 16px calc(20px + var(--safe-bottom))}.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-size:17px}.sheet-head button{color:var(--muted)}