:root{--bg1:#fff7e9;--bg2:#eaf6ff;--ink:#33312e;--muted:#8a8378;--panel:#ffffff;--border:#efe7d6;--brand:#ff7a59;--font-ui:"PingFang HK","Microsoft JhengHei","Noto Sans HK",system-ui,sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{margin:0;padding:0;min-height:100%}body{font-family:var(--font-ui);color:var(--ink);min-height:100vh;background:linear-gradient(160deg,var(--bg1),var(--bg2));background-attachment:fixed}#app{display:flex;flex-direction:column;min-height:100vh}button{font-family:inherit}.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#ffffffd9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:2px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}.brand-emoji{font-size:1.6rem}.brand-text{font-size:1.25rem;font-weight:800;letter-spacing:1px}.top-right{display:flex;align-items:center;gap:10px}.gear{font-size:1.1rem;font-weight:700;cursor:pointer;border:2px solid var(--border);background:#fff;color:var(--ink);border-radius:999px;padding:7px 14px;display:flex;align-items:center;gap:6px}.gear:active{transform:translateY(1px)}.home-btn{text-decoration:none;color:#fff;background:var(--brand);padding:8px 16px;border-radius:999px;font-weight:700;font-size:.95rem;box-shadow:0 3px #e8613f}.home-btn:active{transform:translateY(2px);box-shadow:0 1px #e8613f}main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:24px 16px 40px}.foot{text-align:center;color:var(--muted);padding:16px;font-size:.85rem}.hello{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;background:#fff;border:2px solid var(--border);border-radius:16px;padding:10px 16px;margin-bottom:18px;font-size:.95rem}.hello-stat{color:var(--muted);font-weight:700}.menu-title{text-align:center;font-size:1.8rem;font-weight:800;margin:12px 0 4px}.menu-sub{text-align:center;color:var(--muted);margin:0 0 28px}.cat-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.cat-card{position:relative;text-decoration:none;color:var(--ink);background:var(--panel);border:3px solid var(--c);border-radius:22px;padding:22px 14px 16px;text-align:center;box-shadow:0 6px color-mix(in srgb,var(--c) 55%,#000 8%);transition:transform .12s;cursor:pointer}.cat-card:not(.locked):hover{transform:translateY(-4px)}.cat-card:not(.locked):active{transform:translateY(2px);box-shadow:0 2px color-mix(in srgb,var(--c) 55%,#000 8%)}.cat-emoji{font-size:2.6rem;line-height:1}.cat-name{font-size:1.25rem;font-weight:800;margin-top:8px;color:var(--c)}.cat-count{font-size:.8rem;color:var(--muted);margin-top:2px}.cat-go{margin-top:10px;font-weight:700;color:var(--c)}.cat-lock{margin-top:10px;font-weight:700;color:var(--muted)}.cat-card.locked{opacity:.55;filter:grayscale(.3);box-shadow:0 4px #ccc;border-color:#ccc;cursor:default}.cat-card.locked .cat-name{color:var(--muted)}.prog{display:flex;align-items:center;gap:6px;margin-top:12px}.prog-star{font-size:1rem;filter:grayscale(1);opacity:.5;transition:.2s}.prog-track{flex:1;height:12px;border-radius:999px;background:#efe7d6;overflow:hidden}.prog-fill{display:block;height:100%;border-radius:999px;background:#f5b301;transition:width .4s}.prog.full .prog-star{filter:none;opacity:1;transform:scale(1.2)}.prog.full .prog-fill{background:linear-gradient(90deg,#ffcf33,#ff9f1a);box-shadow:0 0 10px #ffcf33}.prog.full{animation:pop .4s}@keyframes pop{50%{transform:scale(1.04)}}.back{display:inline-block;text-decoration:none;color:var(--ink);background:#fff;border:2px solid var(--border);border-radius:999px;padding:6px 14px;font-weight:700;margin-bottom:16px;cursor:pointer}.back:active{transform:translateY(1px)}.cat-page-title{font-size:1.8rem;font-weight:800;margin:4px 0;color:var(--c)}.cat-page-sub{color:var(--muted);margin:0 0 22px}.rad-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}.rad-card{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;color:var(--ink);background:var(--panel);border:3px solid var(--c);border-radius:20px;padding:14px 8px 10px;box-shadow:0 5px color-mix(in srgb,var(--c) 55%,#000 8%);transition:transform .12s;cursor:pointer}.rad-card:hover{transform:translateY(-3px) rotate(-1deg)}.rad-card:active{transform:translateY(2px);box-shadow:0 2px color-mix(in srgb,var(--c) 55%,#000 8%)}.rad-emoji{font-size:1.5rem}.rad-char{font-size:2.6rem;font-weight:700;line-height:1.1}.rad-name{font-size:.85rem;color:var(--muted)}.rad-stars{font-size:.95rem;letter-spacing:2px;color:#f5b301;margin-top:2px}.rad-stars.dim{color:#e2dccf}.detail{display:flex;flex-direction:column;align-items:center}.detail .back{align-self:flex-start}.detail-head{display:flex;align-items:center;gap:14px;margin:4px 0 12px}.detail-emoji{font-size:2.6rem}.detail-char-name{font-size:2rem;font-weight:800;color:var(--c);line-height:1}.detail-radical{color:var(--muted)}.best-stars{font-size:1.5rem;letter-spacing:4px;color:#f5b301;margin:2px 0 10px;min-height:1.5rem}.best-stars .dim{color:#e2dccf}.grid-wrap{position:relative;width:300px;height:300px}.grid-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:#fff;border:3px solid var(--c);border-radius:12px}.grid-bg:before,.grid-bg:after{content:"";position:absolute}.grid-bg:before{left:50%;top:6px;bottom:6px;width:2px;transform:translate(-1px);background:repeating-linear-gradient(to bottom,#f0c9be 0 7px,transparent 7px 14px)}.grid-bg:after{top:50%;left:6px;right:6px;height:2px;transform:translateY(-1px);background:repeating-linear-gradient(to right,#f0c9be 0 7px,transparent 7px 14px)}.grid-target{position:relative;z-index:2}.loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--muted)}.speak-row{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;justify-content:center}.speak-btn{font-size:.95rem;font-weight:700;padding:9px 16px;border-radius:999px;cursor:pointer;border:2px solid var(--border);background:#fff;color:var(--ink)}.speak-btn:active{transform:translateY(1px)}.speak-btn.on{border-color:var(--c);color:var(--c);background:color-mix(in srgb,var(--c) 10%,#fff)}.status{min-height:1.5em;margin:14px 0 4px;font-weight:800;color:var(--c);font-size:1.05rem;text-align:center}.win-stars{color:#f5b301;letter-spacing:3px;font-size:1.2rem}.controls{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:6px}.btn{font-size:1rem;font-weight:700;padding:11px 20px;border-radius:14px;cursor:pointer;border:2px solid var(--c);background:#fff;color:var(--c);box-shadow:0 4px color-mix(in srgb,var(--c) 55%,#000 8%);transition:transform .1s}.btn:active{transform:translateY(2px);box-shadow:0 1px color-mix(in srgb,var(--c) 55%,#000 8%)}.btn.primary{background:var(--c);color:#fff}.speed{display:flex;align-items:center;gap:8px;margin-top:16px;color:var(--muted);flex-wrap:wrap;justify-content:center}.spd{font-size:.9rem;padding:6px 12px;border-radius:999px;border:2px solid var(--border);background:#fff;cursor:pointer;font-weight:700;color:var(--ink)}.spd.active{border-color:var(--c);color:var(--c);background:color-mix(in srgb,var(--c) 12%,#fff)}.stroke-info{margin-top:14px;color:var(--muted);font-weight:700}.login{display:flex;justify-content:center;padding-top:10px}.login-card{background:#fff;border:3px solid #ffd9cd;border-radius:26px;padding:26px 24px 22px;width:100%;max-width:340px;text-align:center;box-shadow:0 10px 30px #c878501f}.login-emoji{font-size:3rem}.login-title{font-size:1.5rem;font-weight:800;margin:6px 0 2px}.login-sub{color:var(--muted);margin:0 0 16px;font-size:.9rem}.lg-name{width:100%;font-size:1.1rem;text-align:center;padding:12px;border:2px solid var(--border);border-radius:14px;margin-bottom:14px}.lg-name:focus{outline:none;border-color:var(--brand)}.fld-label{display:block;text-align:left;font-size:.82rem;font-weight:700;color:var(--muted);margin:2px 2px 6px}.pin-dots{display:flex;justify-content:center;gap:12px;margin-bottom:16px}.pin-dots span{width:16px;height:16px;border-radius:50%;background:#f0e6d8;transition:.15s}.pin-dots span.on{background:var(--brand);transform:scale(1.15)}.pin-pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.pin-pad button{font-size:1.4rem;font-weight:700;padding:14px 0;border-radius:16px;border:2px solid var(--border);background:#fff;cursor:pointer;color:var(--ink)}.pin-pad button:active{transform:translateY(2px);background:#fff4ec}.pin-pad .pad-clear,.pin-pad .pad-back{font-size:1.1rem;color:var(--muted)}.login-err{min-height:1.3em;color:#e0512f;font-weight:700;margin:12px 0 4px;font-size:.9rem}.lg-go{width:100%;justify-content:center}.admin-add{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 6px}.admin-add input,.admin-add select{font-size:1rem;padding:10px 12px;border:2px solid var(--border);border-radius:12px;background:#fff}.admin-add input{flex:1;min-width:120px}.admin-err{min-height:1.2em;color:#e0512f;font-weight:700;margin:4px 0}.admin-list{overflow-x:auto;margin-top:8px}.utable{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;font-size:.92rem}.utable th,.utable td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.utable th{background:#faf4ea;color:var(--muted);font-weight:700}.uact{display:flex;gap:6px}.mini{font-size:.82rem;font-weight:700;cursor:pointer;border:2px solid var(--border);background:#fff;border-radius:10px;padding:5px 10px;color:var(--ink)}.mini.danger{color:#e0512f;border-color:#f3c9bd}.mini:active{transform:translateY(1px)}.chip-name{font-weight:700;font-size:.9rem}.chip-logout{font-size:.82rem;font-weight:700;cursor:pointer;border:2px solid var(--border);background:#fff;color:var(--muted);border-radius:999px;padding:5px 12px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#281e1466;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.modal{background:#fff;border-radius:22px;width:100%;max-width:360px;padding:22px;box-shadow:0 20px 50px #0003}.modal h2{margin:0 0 4px;font-size:1.3rem}.modal .who{color:var(--muted);margin:0 0 16px;font-size:.9rem}.stat-row{display:flex;gap:10px;margin-bottom:18px}.stat-box{flex:1;background:#faf4ea;border-radius:14px;padding:10px;text-align:center}.stat-box b{display:block;font-size:1.3rem;color:var(--brand)}.stat-box span{font-size:.78rem;color:var(--muted)}.set-label{font-weight:800;margin:14px 0 8px}.seg{display:flex;gap:8px}.seg button{flex:1;font-weight:700;padding:10px;border-radius:12px;border:2px solid var(--border);background:#fff;cursor:pointer;color:var(--ink)}.seg button.on{border-color:var(--brand);color:var(--brand);background:#fff4ec}.toggle-row{display:flex;justify-content:space-between;align-items:center;margin-top:14px}.switch{width:52px;height:30px;border-radius:999px;border:none;cursor:pointer;background:#ddd;position:relative;transition:.2s}.switch.on{background:var(--brand)}.switch:after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;transition:.2s}.switch.on:after{left:25px}.modal-actions{display:flex;gap:10px;margin-top:20px}.modal-actions .btn{flex:1;justify-content:center}@media(max-width:480px){.brand-text{font-size:1.05rem}.menu-title{font-size:1.5rem}.home-btn{padding:7px 12px;font-size:.85rem}}