.app{display:flex;min-height:100dvh}.app-main{flex:1;min-width:0;display:flex;flex-direction:column}.content{flex:1;padding:28px 36px 96px;max-width:1180px;width:100%;margin:0 auto}.sidebar{width:248px;flex-shrink:0;background:var(--ink-900);color:#fff;display:flex;flex-direction:column;padding:22px 16px;position:sticky;top:0;height:100dvh}.sb-logo{display:flex;align-items:center;gap:10px;padding:6px 8px 22px}.sb-logo img{height:30px;width:auto}.sb-section{font-size:10.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:hsla(0,0%,100%,.38);padding:18px 10px 8px}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:var(--r-md);color:hsla(0,0%,100%,.72);font-weight:600;font-size:14.5px;transition:all var(--dur) var(--ease-out);width:100%;text-align:left}.nav-item svg{width:19px;height:19px}.nav-item:hover{background:hsla(0,0%,100%,.06);color:#fff}.nav-item.active{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-brand)}.nav-item .badge{margin-left:auto;font-size:10px;font-weight:800;background:hsla(0,0%,100%,.16);padding:2px 7px;border-radius:99px;letter-spacing:.04em}.sb-upsell{margin-top:auto;background:var(--ink-850);border:1px solid var(--ink-700);border-radius:var(--r-lg);padding:16px;position:relative;overflow:hidden}.sb-upsell .glow{position:absolute;inset:0;background:var(--grad-glow);opacity:.7}.sb-upsell-in{position:relative}.topbar{display:flex;align-items:center;gap:14px;padding:16px 36px;background:var(--glass-light);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.tb-greet{font-weight:800;font-size:16px;letter-spacing:-.02em}.tb-greet span{color:var(--fg3);font-weight:600;font-size:12.5px;display:block;letter-spacing:0}.tb-spacer{flex:1}.tb-streak{display:inline-flex;align-items:center;gap:8px;background:var(--ink-900);color:#fff;padding:8px 14px;border-radius:var(--r-pill);font-weight:700;font-size:14px}.tb-streak svg{color:var(--brand-amber);width:17px;height:17px}.tb-xp{display:inline-flex;align-items:center;gap:8px;background:var(--surface);box-shadow:var(--shadow-xs);padding:8px 14px;border-radius:var(--r-pill);font-weight:700;font-size:14px;color:var(--fg1)}.tb-xp svg{color:var(--brand-orange);width:17px;height:17px}.tb-avatar{width:40px;height:40px;border-radius:50%;background:var(--grad-brand);display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;flex-shrink:0}.card,.tb-avatar{box-shadow:var(--shadow-sm)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl)}.card-pad{padding:22px}.card-hover{transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out)}.card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--brand-orange-700)}.section-title{font-family:var(--font-display);font-weight:800;font-size:24px;letter-spacing:-.025em}.muted{color:var(--fg2)}.btn{font-weight:700;font-size:15px;border-radius:var(--r-md);padding:12px 20px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:all var(--dur) var(--ease-out);white-space:nowrap;cursor:pointer}.btn svg{width:18px;height:18px}.btn:active{transform:scale(.97)}.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-brand)}.btn-primary:hover{filter:brightness(1.05)}.btn-secondary{background:var(--surface);color:var(--fg1);border:1.5px solid var(--border-strong);box-shadow:var(--shadow-xs)}.btn-secondary:hover{border-color:var(--fg3)}.btn-dark{background:var(--ink-900);color:#fff}.btn-ghost{color:var(--brand-orange-700)}.btn-ghost:hover{background:var(--premium-bg)}.btn-block{width:100%}.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:var(--r-sm)}.track{height:10px;background:var(--surface-sunk);border-radius:99px;overflow:hidden;box-shadow:inset 0 1px 2px rgba(0,0,0,.05)}.track .fill{height:100%;background:var(--grad-brand);border-radius:99px;transition:width var(--dur-slow) var(--ease-out)}.track.thin{height:7px}.tag{font-size:10.5px;font-weight:800;letter-spacing:.05em;padding:4px 9px;border-radius:6px;gap:5px}.pill,.tag{display:inline-flex;align-items:center}.pill{gap:6px;font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:var(--r-pill)}.grid{display:grid;gap:18px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.row{align-items:center;gap:12px}.row,.stat{display:flex}.stat{flex-direction:column;gap:6px;padding:18px}.stat .ic{width:40px;height:40px;border-radius:var(--r-md);display:grid;place-items:center;color:#fff;margin-bottom:4px}.stat .n{font-family:var(--font-display);font-weight:800;font-size:28px;letter-spacing:-.03em;line-height:1}.stat .l{font-size:12.5px;color:var(--fg2);font-weight:600}.mod{padding:20px;position:relative;overflow:hidden}.mod h4{font-weight:800;font-size:17px;letter-spacing:-.01em;margin:12px 0 5px}.mod p{font-size:13px;color:var(--fg2);line-height:1.5}.mod.locked .lockface{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;background:rgba(255,249,245,.62);backdrop-filter:blur(2px);border-radius:var(--r-xl)}.mod .lockcircle{width:46px;height:46px;border-radius:50%;background:var(--grad-brand);display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-brand)}.hz{font-family:var(--font-hanzi);font-weight:700}.pathcard{position:relative;overflow:hidden;border-radius:var(--r-2xl);padding:28px;transition:transform var(--dur) var(--ease-out),box-shadow var(--dur) var(--ease-out);display:flex;flex-direction:column}.pathcard.daily{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm)}.pathcard.dark{background:var(--ink-900);color:#fff;box-shadow:var(--shadow-md)}.pathcard .pic{width:52px;height:52px;border-radius:var(--r-lg);display:grid;place-items:center;margin-bottom:18px}.pathcard h3{font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em;margin-bottom:6px}.chip-amber{display:inline-flex;align-items:center;gap:8px;background:rgba(246,162,58,.16);color:var(--brand-amber);font-weight:700;font-size:12.5px;padding:7px 14px;border-radius:var(--r-pill);white-space:nowrap}.auth{min-height:100dvh;display:grid;grid-template-columns:1fr 1fr}.auth-aside{background:var(--ink-900);color:#fff;position:relative;overflow:hidden;padding:48px;display:flex;flex-direction:column;justify-content:space-between}.auth-aside .glow{position:absolute;inset:0;background:var(--grad-glow)}.auth-aside .hz-bg{position:absolute;right:-30px;bottom:-60px;font-family:var(--font-hanzi);font-weight:900;font-size:360px;color:hsla(0,0%,100%,.04);line-height:1;pointer-events:none}.auth-main{display:flex;align-items:center;justify-content:center;padding:40px 28px;background:var(--page-alt,var(--surface-warm))}.auth-card{width:100%;max-width:400px}.auth-field{margin-bottom:14px}.auth-field label{display:block;font-size:12.5px;font-weight:700;color:var(--fg2);margin-bottom:6px}.auth-input{width:100%;font-family:var(--font-sans);font-size:15px;padding:13px 15px;border-radius:var(--r-md);border:1.5px solid var(--border-strong);background:var(--surface);color:var(--fg1);transition:border var(--dur),box-shadow var(--dur)}.auth-input::-moz-placeholder{color:var(--fg3)}.auth-input::placeholder{color:var(--fg3)}.auth-input:focus{outline:none;border-color:var(--brand-orange);box-shadow:var(--ring-brand)}.btn-google{width:100%;background:#fff;border:1.5px solid var(--border-strong);color:var(--fg1);font-weight:700;font-size:15px;padding:12px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;transition:border var(--dur)}.btn-google:hover{border-color:var(--fg3)}.divider{display:flex;align-items:center;gap:12px;color:var(--fg3);font-size:13px;font-weight:600;margin:18px 0}.divider:after,.divider:before{content:"";flex:1;height:1px;background:var(--border)}.ai-chat{display:flex;flex-direction:column;height:60vh;min-height:420px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-sm)}.ai-log{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px;background:var(--surface-warm)}.bub{max-width:80%;padding:12px 15px;font-size:14.5px;line-height:1.55;white-space:pre-wrap}.bub.me{align-self:flex-end;background:var(--grad-brand);color:#fff;border-radius:16px 16px 4px 16px}.bub.ai{align-self:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:16px 16px 16px 4px;box-shadow:var(--shadow-xs);color:var(--fg1)}.bub .font-hanzi{font-family:var(--font-hanzi)}.ai-input{display:flex;gap:10px;padding:14px;border-top:1px solid var(--border);background:var(--surface)}.ai-input input{flex:1;font-family:var(--font-sans);font-size:14.5px;padding:12px 14px;border-radius:var(--r-md);border:1.5px solid var(--border-strong);background:var(--surface);color:var(--fg1)}.ai-input input:focus{outline:none;border-color:var(--brand-orange);box-shadow:var(--ring-brand)}.drill-card{background:var(--surface);border:1px solid var(--border-warm);border-radius:var(--r-xl);padding:22px;box-shadow:var(--shadow-sm)}.drill-target{font-family:var(--font-hanzi);font-weight:700;font-size:30px;line-height:1.25}.drill-py{font-style:italic;color:var(--fg2);margin-top:4px}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th{text-align:left;font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--fg3);padding:12px 16px;background:var(--surface-warm)}.admin-table td,.admin-table th{border-bottom:1px solid var(--border)}.admin-table td{padding:13px 16px;vertical-align:middle}.admin-table tbody tr:last-child td{border-bottom:0}.admin-table tr:hover td{background:var(--surface-warm)}.bottomnav{display:none}@media (max-width:860px){.sidebar{display:none}.topbar{padding:14px 18px}.content{padding:20px 18px 96px}.g4{grid-template-columns:repeat(2,1fr)}.g2,.g3{grid-template-columns:1fr}.bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--glass-light);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-top:1px solid var(--border);padding:8px 6px calc(8px + env(safe-area-inset-bottom));z-index:40;justify-content:space-around}.bn-item{display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--fg3);font-size:10.5px;font-weight:700;padding:6px 12px;border-radius:var(--r-md);min-width:56px}.bn-item svg{width:22px;height:22px}.bn-item.active{color:var(--brand-orange-700)}}@media (max-width:680px){.auth{grid-template-columns:1fr}.auth-aside{display:none}}