:root{--bg: #ffffff;--bg-elevated: #f5f5f7;--bg-sidebar: rgba(246, 246, 248, .72);--bg-composer: rgba(255, 255, 255, .86);--ink: #1d1d1f;--ink-2: #6e6e73;--ink-3: #aeaeb2;--accent: #0071e3;--accent-soft: rgba(0, 113, 227, .1);--bubble-user: #f0f0f2;--line: rgba(60, 60, 67, .12);--card: #ffffff;--card-border: rgba(60, 60, 67, .12);--shadow-composer: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .06);--shadow-card: 0 1px 2px rgba(0, 0, 0, .03), 0 4px 16px rgba(0, 0, 0, .04);--radius-lg: 20px;--radius-md: 14px;--radius-sm: 10px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;--sidebar-w: 260px;--content-w: 768px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;color:var(--ink);background:var(--bg);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}.app-shell{display:flex;height:100%;background:var(--bg)}.sidebar{width:var(--sidebar-w);flex-shrink:0;display:flex;flex-direction:column;padding:12px 12px 16px;background:var(--bg-sidebar);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-right:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;padding:8px 10px 18px}.brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(145deg,#1d1d1f,#454548);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:600;letter-spacing:-.02em}.brand-name{font-size:15px;font-weight:600;letter-spacing:-.01em}.brand-sub{font-size:11px;color:var(--ink-2);margin-top:1px}.sidebar-new{display:flex;align-items:center;gap:8px;width:100%;padding:11px 12px;margin-bottom:18px;border-radius:var(--radius-sm);background:var(--accent);color:#fff;font-size:14px;font-weight:550;transition:transform .15s ease,filter .15s ease}.sidebar-new:hover{filter:brightness(1.06)}.sidebar-new:active{transform:scale(.98)}.sidebar-label{padding:0 10px 8px;font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:.02em}.sidebar-hint{padding:10px 12px;border-radius:var(--radius-sm);color:var(--ink-2);font-size:13px;background:#ffffff8c;line-height:1.45}.sidebar-footer{margin-top:auto;padding:12px 10px 0;border-top:1px solid var(--line);font-size:12px;color:var(--ink-3)}.main{flex:1;min-width:0;display:flex;flex-direction:column;height:100%;background:radial-gradient(1200px 500px at 50% -10%,rgba(0,113,227,.05),transparent 60%),var(--bg)}.topbar{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px;border-bottom:1px solid transparent}.topbar-title{font-size:15px;font-weight:600;letter-spacing:-.01em}.topbar-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;background:var(--bg-elevated);border:1px solid var(--line);font-size:12px;color:var(--ink-2)}.topbar-dot{width:7px;height:7px;border-radius:50%;background:#34c759;box-shadow:0 0 0 3px #34c7592e}.menu-btn{display:none;width:36px;height:36px;border-radius:10px;align-items:center;justify-content:center;color:var(--ink);background:var(--bg-elevated)}.scroll-area{flex:1;overflow-y:auto;scroll-behavior:smooth}.scroll-inner{max-width:var(--content-w);margin:0 auto;padding:12px 22px 24px}.timeline{display:flex;flex-direction:column;gap:22px}.row{display:flex;animation:rise .35s cubic-bezier(.22,1,.36,1) both}.row.user{justify-content:flex-end}.row.assistant{justify-content:flex-start}.bubble{max-width:min(86%,640px);font-size:16px;letter-spacing:-.01em}.bubble.user{background:var(--bubble-user);color:var(--ink);padding:12px 16px;border-radius:18px 18px 6px}.bubble.assistant{max-width:100%;padding:0 2px}.bubble.assistant .msg-text,.bubble.user .msg-text{white-space:pre-wrap;word-break:break-word}.msg-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px;color:var(--ink-2);font-size:12px;font-weight:500}.msg-avatar{width:22px;height:22px;border-radius:7px;background:linear-gradient(145deg,#1d1d1f,#454548);color:#fff;font-size:11px;display:grid;place-items:center;font-weight:600}.streaming-cursor{display:inline-block;width:2px;height:1em;margin-left:2px;vertical-align:-2px;background:var(--accent);border-radius:1px;animation:blink 1s steps(1) infinite}.card{margin-top:12px;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden;animation:rise .4s cubic-bezier(.22,1,.36,1) both}.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px 10px}.card-title{margin:0;font-size:17px;font-weight:650;letter-spacing:-.02em}.card-badge{font-size:11px;font-weight:600;color:var(--accent);background:var(--accent-soft);padding:4px 10px;border-radius:999px;letter-spacing:.01em}.card-body{padding:0 16px 16px}.card-section-label{margin:14px 0 8px;font-size:12px;font-weight:600;color:var(--ink-2);letter-spacing:.02em;text-transform:none}.plan-day{padding:12px 14px;margin-top:8px;background:var(--bg-elevated);border-radius:var(--radius-md)}.plan-day h4{margin:0 0 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var(--line);box-shadow:var(--shadow-card);font-size:13.5px;color:var(--ink);transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}.chip:hover{transform:translateY(-1px);border-color:#0071e359;box-shadow:0 8px 20px #0071e31a}.chip:active{transform:scale(.97)}.composer-wrap{flex-shrink:0;padding:8px 22px 18px;background:linear-gradient(to top,var(--bg) 60%,rgba(255,255,255,0))}.composer{max-width:var(--content-w);margin:0 auto;display:flex;align-items:flex-end;gap:10px;padding:10px 10px 10px 16px;background:var(--bg-composer);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow-composer);transition:box-shadow .2s ease,border-color .2s ease}.composer:focus-within{border-color:#0071e359;box-shadow:var(--shadow-composer),0 0 0 4px #0071e314}.composer textarea{flex:1;min-height:24px;max-height:160px;resize:none;border:none;outline:none;background:transparent;padding:8px 0;line-height:1.45;font-size:16px}.composer textarea::placeholder{color:var(--ink-3)}.send-btn{width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;flex-shrink:0;transition:transform .15s ease,opacity .15s ease,background .15s ease}.send-btn:hover:not(:disabled){background:#0077ed}.send-btn:active:not(:disabled){transform:scale(.94)}.send-btn:disabled{opacity:.35;cursor:default}.composer-note{max-width:var(--content-w);margin:8px auto 0;text-align:center;font-size:11px;color:var(--ink-3)}.error-banner{max-width:var(--content-w);margin:0 auto 10px;display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:var(--radius-md);background:#ff3b3014;color:#c0392b;border:1px solid rgba(255,59,48,.18);font-size:13px;animation:rise .25s ease both}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(max-width:860px){.sidebar{position:fixed;inset:0 auto 0 0;z-index:30;transform:translate(-105%);transition:transform .25s cubic-bezier(.22,1,.36,1);box-shadow:12px 0 40px #0000001f}.sidebar.open{transform:translate(0)}.menu-btn{display:inline-flex}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000047;z-index:20;border:none}.scroll-inner{padding:8px 14px 16px}.composer-wrap{padding:8px 12px 14px}.empty h1{font-size:26px}.bubble{max-width:92%}}.login-cta{width:100%;padding:10px 12px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--line);font-size:13px;font-weight:550;color:var(--ink);transition:border-color .15s ease}.login-cta:hover{border-color:#0071e366}.user-row{display:flex;align-items:center;gap:10px}.user-avatar{width:34px;height:34px;border-radius:50%;object-fit:cover;background:var(--bg-elevated)}.user-avatar.fallback{display:grid;place-items:center;background:#1d1d1f;color:#fff;font-size:13px;font-weight:600}.user-name{font-size:13px;font-weight:550;color:var(--ink)}.user-logout{font-size:11px;color:var(--ink-2);padding:0;margin-top:2px}.user-logout:hover{color:var(--accent)}.modal-root{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:20px}.modal-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#00000052;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:none}.modal-card{position:relative;width:min(400px,100%);background:#fff;border-radius:22px;padding:28px 24px 20px;box-shadow:0 24px 64px #0000002e;animation:rise .3s cubic-bezier(.22,1,.36,1) both;text-align:center}.modal-handle{width:36px;height:4px;border-radius:999px;background:var(--line);margin:-8px auto 16px}.modal-card h2{margin:0 0 8px;font-size:22px;font-weight:700;letter-spacing:-.02em}.modal-sub{margin:0 0 22px;color:var(--ink-2);font-size:14px}.btn-wechat{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 16px;border-radius:14px;background:#07c160;color:#fff;font-size:16px;font-weight:600;transition:filter .15s ease,transform .15s ease}.btn-wechat:hover:not(:disabled){filter:brightness(1.05)}.btn-wechat:active:not(:disabled){transform:scale(.98)}.btn-wechat:disabled{opacity:.45}.btn-mock{width:100%;margin-top:12px;padding:12px 16px;border-radius:14px;background:var(--bg-elevated);color:var(--ink);font-size:14px;font-weight:550;border:1px solid var(--line)}.modal-err{margin-top:12px;color:#c0392b;font-size:13px}.modal-cancel{margin-top:18px;width:100%;padding:10px;color:var(--ink-2);font-size:14px;border-radius:12px}.modal-cancel:hover{background:var(--bg-elevated)}.auth-form{display:flex;flex-direction:column;gap:12px;text-align:left}.auth-field{display:flex;flex-direction:column;gap:6px}.auth-field span{font-size:12px;font-weight:550;color:var(--ink-2)}.auth-field input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg-elevated);font-size:16px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.auth-field input:focus{border-color:#0071e380;box-shadow:0 0 0 4px #0071e31a;background:#fff}.btn-primary{margin-top:4px;width:100%;padding:13px 16px;border-radius:13px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;transition:filter .15s ease,transform .15s ease}.btn-primary:hover:not(:disabled){filter:brightness(1.06)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-primary:disabled{opacity:.4}.auth-switch{margin-top:14px;width:100%;padding:8px;font-size:13px;color:var(--accent);font-weight:550;border-radius:10px}.auth-switch:hover{background:var(--accent-soft)}.dataset-btn{width:100%;text-align:left;cursor:pointer;margin-bottom:12px;border:1px solid var(--line)}.dataset-btn:hover{border-color:#0071e359}.dataset-card{width:min(480px,100%);text-align:left}.dataset-card h2,.dataset-card .modal-sub{text-align:center}.dataset-body{max-height:52vh;overflow-y:auto;display:flex;flex-direction:column;gap:14px}.dataset-body section h3{margin:0 0 6px;font-size:13px;font-weight:650;color:var(--ink-2)}.dataset-body ul{margin:0;padding:0;list-style:none;font-size:14px}.dataset-body li{padding:4px 0}.journal-snippet{margin:0;font-size:13px;color:var(--ink-2);line-height:1.5}.login-gate-btn{min-width:200px}.composer-locked{max-width:var(--content-w);margin:0 auto}.composer-locked .btn-primary{width:100%}.score-hero{display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:16px;background:linear-gradient(135deg,#f5f5f7,#eef4ff);border:1px solid var(--line);margin-bottom:4px}.score-ring{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--accent) var(--pct, 0%),#e5e5ea 0);position:relative;flex-shrink:0}.score-ring:before{content:"";position:absolute;top:6px;right:6px;bottom:6px;left:6px;border-radius:50%;background:#fff}.score-ring span{position:relative;font-size:18px;font-weight:700;letter-spacing:-.02em}.score-meta h3{margin:0 0 4px;font-size:15px;font-weight:650}.score-meta .eta{margin:0;font-size:13px;color:var(--ink-2);line-height:1.45}.score-bar{height:6px;border-radius:999px;background:#e5e5ea;overflow:hidden;margin:6px 0 2px}.score-bar>i{display:block;height:100%;background:var(--accent);border-radius:inherit}.composer-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.img-picker{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.img-btn{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:var(--ink-2);background:var(--bg-elevated);border:1px solid var(--line)}.img-btn:hover:not(:disabled){color:var(--accent);border-color:#0071e359}.img-btn:disabled{opacity:.4}.img-thumb{position:relative;width:52px;height:52px}.img-thumb img{width:100%;height:100%;object-fit:cover;border-radius:10px;border:1px solid var(--line)}.img-remove{position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;background:#000000a6;color:#fff;font-size:12px;line-height:18px;text-align:center;padding:0}.img-err{font-size:11px;color:#c0392b}.msg-images{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}.msg-images img{width:88px;height:88px;object-fit:cover;border-radius:12px}.progress-block{margin:12px 0;padding:12px 14px;border-radius:14px;background:var(--bg-elevated);border:1px solid var(--line)}.progress-block h3{margin:0 0 8px;font-size:13px;font-weight:650;color:var(--ink-2)}.progress-list{list-style:none;margin:0;padding:0}.progress-list li{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14px}.progress-list .check{width:18px;text-align:center;color:var(--ink-3)}.progress-list li.done .check{color:#34c759;font-weight:700}.progress-list .label{min-width:96px;font-weight:550}.progress-list .detail{color:var(--ink-2);font-size:13px;margin-left:auto}.progress-meta{margin-top:8px;font-size:12px;color:var(--ink-3)}