:root{--canvas:#fbfbfa;--surface:#ffffff;--ink:#191c1f;--ink-soft:#5f6469;--ink-faint:#8b9096;--line:#e8e8e5;--line-strong:#d6d6d2;--focus:#2f5bd7;--radius:12px;--radius-sm:8px;--shadow:0 1px 2px rgba(25,28,31,0.04);--step:4px;--gutter:20px;--touch:44px;--font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body,html{background:var(--canvas)}body{font-family:var(--font);font-size:16px;line-height:1.45;color:var(--ink);-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}body,h1,h2,h3,ol,p,ul{margin:0}ul{padding:0;list-style:none}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:4px}.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum","tnum"}.page{max-width:34rem;margin:0 auto;padding:calc(env(safe-area-inset-top) + 24px) var(--gutter) 120px}.page-head{margin-bottom:28px}.eyebrow{font-size:15px;color:var(--ink-soft)}.title{font-size:30px;font-weight:600;letter-spacing:-.02em;line-height:1.15}.section-title{font-size:15px;font-weight:600;color:var(--ink-soft);margin-bottom:12px}.stack{gap:10px}.stack,.stack-lg{display:flex;flex-direction:column}.stack-lg{gap:28px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.muted{color:var(--ink-soft);font-size:15px}.faint{color:var(--ink-faint);font-size:13px}.row{display:flex;align-items:center;justify-content:space-between;gap:12px}.btn{min-height:var(--touch);padding:0 18px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--surface);font-size:16px;font-weight:500;cursor:pointer;transition:background .12s ease}.btn:active{background:#f2f2f0}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff}.btn-primary:active{background:#33383d}.btn-block{width:100%}.btn-quiet{border-color:transparent;background:transparent;color:var(--ink-soft);padding:0 8px}.btn-danger{color:#b3261e;border-color:#e6cecc}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:14px;color:var(--ink-soft)}.input{min-height:var(--touch);padding:0 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);width:100%}.tabbar{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);z-index:20}.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:52px;padding:6px 0;font-size:11px;text-decoration:none;color:var(--ink-faint)}.tabbar a[aria-current=page]{color:var(--ink)}.actionbar{position:fixed;left:0;right:0;bottom:calc(52px + env(safe-area-inset-bottom));padding:12px var(--gutter);background:linear-gradient(to top,var(--canvas) 72%,rgba(251,251,250,0));z-index:15}.actionbar-inner{max-width:34rem;margin:0 auto}.notice{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);padding:12px 14px;font-size:14px;color:var(--ink-soft)}.notice-error{border-color:#e6cecc;color:#8f2019}@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}.toast{position:fixed;right:16px;bottom:calc(112px + env(safe-area-inset-bottom));left:16px;max-width:20rem;margin-left:auto;padding:11px 14px;border-radius:10px;background:rgba(25,28,31,.94);color:#fff;font-size:14px;line-height:1.35;box-shadow:0 6px 20px rgba(25,28,31,.18);z-index:40;animation:toast-in .18s ease-out}@keyframes toast-in{0%{opacity:0;transform:translateY(6px)}}