:root{--primary: #40a9ff;--bg: #f8fafc;--text: #334155;--title: #1e293b;--muted: #64748b;--line: #e2e8f0;--card-shadow: 0 4px 20px rgba(0, 0, 0, .08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}#root{min-height:100vh}button,input,textarea,select{font:inherit}.muted{color:var(--muted)}.error{color:#dc2626;margin-top:.5rem}.container{margin:0 auto;padding:0 20px;max-width:1200px}.app-shell{min-height:100vh;background:var(--bg);display:flex;flex-direction:column}.main-content{flex:1;padding:2rem 0 6rem}.icp-footer{text-align:center;padding:12px 0 18px;font-size:12px;color:#64748b}.header-nav{background:var(--primary);color:#fff;padding:.9rem 0;box-shadow:0 2px 10px #0000001a;position:sticky;top:0;z-index:100}.header-nav-inner{display:flex;align-items:center;justify-content:space-between}.brand-title{font-size:1.15rem;font-weight:700}.user-chip{display:inline-flex;align-items:center;gap:.5rem;border-radius:24px;padding:.45rem .9rem;background:#ffffff29}.user-avatar{width:28px;height:28px;border-radius:50%;background:#ffffff4d;display:inline-flex;align-items:center;justify-content:center;font-size:.8rem}.top-nav{margin-top:1rem;display:flex;gap:.6rem;flex-wrap:wrap}.top-nav a{color:#0f172a;background:#fff;border:1px solid var(--line);border-radius:999px;padding:.42rem .9rem;font-size:.9rem}.top-nav a.active{background:var(--primary);color:#fff;border-color:transparent}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 -2px 10px #00000014;z-index:90;padding:.4rem 0 .25rem}.bottom-nav .nav-items{display:flex;justify-content:space-around}.bottom-nav .nav-items a{text-align:center;font-size:.75rem;color:var(--muted);padding:.4rem .6rem;border-radius:10px}.bottom-nav .nav-items a.active{color:var(--primary);background:#40a9ff1a}.bottom-nav .icp-mini{text-align:center;font-size:10px;color:#94a3b8;margin-top:2px}.btn{display:inline-flex;align-items:center;gap:.45rem;border-radius:8px;padding:.75rem 1.2rem;border:none;cursor:pointer;transition:all .25s ease}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #40a9ff4d}.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn-secondary{background:#f8fafc;color:var(--muted);border:1px solid var(--line)}.btn:disabled{opacity:.6;cursor:not-allowed}.panel,.card-link{background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:var(--card-shadow)}.panel{padding:1.5rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.card-link{padding:1.2rem;transition:all .25s ease}.card-link:hover{transform:translateY(-3px)}.inline-form{margin-top:1rem;display:grid;gap:.75rem}input,textarea,select{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:.75rem;background:#fff}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #40a9ff1f}.row-between{display:flex;justify-content:space-between;align-items:center;gap:.75rem;flex-wrap:wrap}.chat-box{background:#fff;border-radius:16px;min-height:420px;max-height:620px;overflow:auto;border:1px solid var(--line);box-shadow:var(--card-shadow);padding:1.2rem}.msg{margin-bottom:.9rem}.msg .role{font-size:.78rem;color:var(--muted);margin-bottom:.2rem;display:inline-block}.msg-body{border-radius:12px;padding:.72rem .85rem;background:#f8fafc}.msg.user .msg-body{background:#e6f7ff}.assistant-text{white-space:normal;line-height:1.35}.assistant-text>*{margin:0}.assistant-text>*+*{margin-top:.22rem}.assistant-text ul,.assistant-text ol{margin:0 0 0 1rem;padding-left:.55rem}.citation-link{color:var(--primary);font-weight:600;margin:0 2px}.citation-link:hover{text-decoration:underline}.references-block{margin-top:.6rem;border-radius:10px;padding:.7rem;background:#f8fafc;border:1px solid #dbeafe}.references-block h4{margin-bottom:.4rem}.reference-content{margin-top:.2rem;color:#475569}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--primary);padding:1.25rem;position:relative}.auth-page:before,.auth-page:after{content:"";position:absolute;border-radius:50%;background:#ffffff1f}.auth-page:before{width:280px;height:280px;top:-80px;right:-90px}.auth-page:after{width:180px;height:180px;left:-60px;bottom:30px}.auth-card{position:relative;z-index:1;width:min(520px,94vw);background:#fff;border-radius:20px;padding:2rem;box-shadow:0 20px 60px #00000047;display:grid;gap:.9rem}.auth-container{width:min(520px,94vw);position:relative;z-index:1}.auth-logo-block{display:flex;align-items:center;justify-content:center}.auth-logo-section{margin-bottom:1.15rem}.auth-logo-img{width:min(210px,52vw);height:auto;display:block}.auth-title{font-size:1.4rem;color:var(--title);margin-bottom:.2rem;text-align:center}.auth-card>.muted{text-align:center}.list-tight{margin-top:.45rem;padding-left:1.2rem}.list-tight li+li{margin-top:.3rem}.auth-agreement{text-align:center;margin-top:1rem;font-size:.92rem;color:#eaf5ff}.auth-agreement a{color:#fff;text-decoration:underline}.auth-switch,.auth-card input,.auth-card select{text-align:center}.auth-card .btn{justify-content:center}.checkin-panel{border:1px solid #dbeafe}.checkin-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.9rem}.checkin-done{color:#16a34a;font-weight:700}.checkin-pending{color:#f59e0b;font-weight:700}.checkin-history-panel{border:1px solid #e2e8f0}.checkin-history-list{list-style:none;display:grid;gap:.7rem}.checkin-history-list li{border:1px solid #e2e8f0;border-radius:12px;padding:.75rem;display:flex;justify-content:space-between;gap:.8rem;align-items:center;flex-wrap:wrap}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}@media (max-width: 768px){.container{padding:0 14px}.main-content{padding:1rem 0 6rem}.panel{padding:1rem}}