.lg-page{min-height:100vh;min-height:100dvh;background:#fff;background-image:radial-gradient(115% 46% at 50% 0%,#fff3ea,#fffaf7 44%,#fff);display:flex;flex-direction:column}.lg-hero{padding:calc(26px + var(--safe-top, 0px)) 24px 4px;text-align:center}.lg-glow,.lg-mark{display:none}.lg-illus{display:block;max-width:300px;margin:0 auto 6px}.lg-name{margin:0 0 5px;font-size:26px;font-weight:700;letter-spacing:4px;color:#1f2226}.lg-sub{margin:0;font-size:12.5px;letter-spacing:.4px;color:#9aa0a8}.lg-card{flex:1;width:100%;max-width:440px;margin:0 auto;padding:18px 22px calc(26px + var(--safe-bottom, 0px));background:transparent;animation:lg-fade .34s ease both}@keyframes lg-fade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.lg-form{display:block}.lg-field{display:flex;align-items:center;gap:10px;height:54px;padding:0 15px;margin-bottom:14px;border:1px solid #eceef1;border-radius:15px;background:#fff;box-shadow:0 1px 2px #181c2208;transition:border-color .16s ease,box-shadow .16s ease}.lg-field:focus-within{border-color:#ffb27a;box-shadow:0 0 0 4px #ff6d0017}.lg-ico{display:flex;color:#c2c6cc;flex:0 0 auto}.lg-field:focus-within .lg-ico{color:var(--brand, #ff6d00)}.lg-field input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:16px;font-family:inherit;color:#1f2226}.lg-field input::placeholder{color:#b3b8bf;font-size:14.5px}.lg-code{flex:0 0 auto;border:0;background:transparent;padding:0 2px;color:var(--brand, #ff6d00);font-size:13.5px;font-weight:600;font-family:inherit;cursor:pointer;white-space:nowrap}.lg-code:disabled{color:#c3c7cd;cursor:default;font-weight:500}.lg-dev{margin:-4px 0 12px;padding:9px 12px;background:#fff4ec;color:#a1440a;border-radius:10px;font-size:12.5px}.lg-cta{width:100%;height:54px;margin-top:8px;border:0;border-radius:16px;background:linear-gradient(135deg,#ff9a4d 0%,var(--brand, #ff6d00) 100%);color:#fff;font-size:16.5px;font-weight:600;font-family:inherit;letter-spacing:2px;cursor:pointer;box-shadow:0 10px 22px #ff6d0042;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease}.lg-cta:active{transform:scale(.985);box-shadow:0 5px 14px #ff6d0038}.lg-cta:disabled{filter:saturate(.55) opacity(.7);box-shadow:none;cursor:default}.lg-switch{text-align:center;margin-top:14px}.lg-switch a{color:#8b9198;font-size:13px;cursor:pointer}.lg-others{margin-top:26px}.lg-others-sep{display:flex;align-items:center;gap:12px;color:#b3b8bf;font-size:12px}.lg-others-sep:before,.lg-others-sep:after{content:"";flex:1;height:1px;background:#f0f1f3}.lg-other-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:50px;margin-top:16px;border:1px solid #eceef1;border-radius:15px;background:#fff;color:#43494f;font-size:14.5px;font-family:inherit;cursor:pointer;transition:background .16s ease}.lg-other-btn:active{background:#fafafa}.lg-tip{margin-top:12px;padding:9px 12px;background:#f6f7f9;color:#6b7178;border-radius:10px;font-size:12.5px;text-align:center}.lg-legal{margin:22px 0 0;text-align:center;font-size:11.5px;line-height:1.75;color:#a7acb3}@media (prefers-reduced-motion: reduce){.lg-card{animation:none}}:root{--brand: #ff6d00;--brand-deep: #e65100;--brand-soft: #fff3e0;--ok: #2e7d32;--ok-soft: #e8f5e9;--bad: #c62828;--bad-soft: #ffebee;--warn: #f9a825;--info: #1565c0;--info-soft: #e3f2fd;--text: #212121;--text-2: #616161;--text-3: #9e9e9e;--line: #eeeeee;--bg: #f7f7f8;--card: #ffffff;--radius: 14px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.55}#root{min-height:100vh}.app-shell{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative}.topbar{position:sticky;top:0;z-index:20;padding:calc(10px + var(--safe-top)) 16px 10px;background:var(--brand);color:#fff;display:flex;align-items:center;gap:10px}.topbar h1{font-size:17px;font-weight:600;margin:0;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar .icon-btn{background:#ffffff2e;border:none;color:#fff;width:34px;height:34px;border-radius:50%;font-size:17px;display:flex;align-items:center;justify-content:center;cursor:pointer}.page{padding:14px 16px calc(84px + var(--safe-bottom))}.card{background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:0 1px 3px #0000000f}.card h3{margin:0 0 10px;font-size:15px;font-weight:600}.tabbar{position:fixed;left:50%;transform:translate(-50%);bottom:0;width:100%;max-width:480px;background:#fff;border-top:1px solid var(--line);display:flex;padding:6px 0 calc(6px + var(--safe-bottom));z-index:30}.tabbar a{flex:1;text-align:center;text-decoration:none;color:var(--text-3);font-size:11px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0}.tabbar a .tab-ico{font-size:21px;line-height:1}.tabbar a.active{color:var(--brand);font-weight:600}.btn{display:block;width:100%;border:none;border-radius:12px;padding:13px;font-size:16px;font-weight:600;cursor:pointer;transition:opacity .15s;text-align:center}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--brand);color:#fff}.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}.btn-plain{background:#f0f0f0;color:var(--text-2)}.btn-sm{padding:8px 12px;font-size:13px;width:auto;display:inline-block;border-radius:10px}.field{margin-bottom:12px}.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:12px;border:1.5px solid var(--line);border-radius:10px;font-size:16px;background:#fff;color:var(--text)}.field input:focus,.field select:focus{outline:none;border-color:var(--brand)}.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;background:var(--brand-soft);color:var(--brand-deep)}.tag-ok{background:var(--ok-soft);color:var(--ok)}.tag-bad{background:var(--bad-soft);color:var(--bad)}.tag-info{background:var(--info-soft);color:var(--info)}.row{display:flex;align-items:center;gap:10px}.row .grow{flex:1;min-width:0}.muted{color:var(--text-3);font-size:13px}.center{text-align:center}.err{color:var(--bad);font-size:13px;margin:8px 0}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{background:var(--card);border-radius:var(--radius);padding:12px 8px;text-align:center}.stat b{display:block;font-size:22px;color:var(--brand)}.stat span{font-size:12px;color:var(--text-2)}.bar{height:8px;background:var(--line);border-radius:999px;overflow:hidden}.bar>i{display:block;height:100%;background:var(--brand);border-radius:999px}.word-card{text-align:center;padding:26px 16px}.word-card .word{font-size:40px;font-weight:700;letter-spacing:1px}.word-card .phonetic{color:var(--text-3);margin:4px 0 10px;font-size:15px}.word-card .meaning{font-size:18px;color:var(--text)}.steps{display:flex;gap:6px;margin-bottom:14px}.steps span{flex:1;height:5px;border-radius:999px;background:var(--line)}.steps span.on{background:var(--brand)}.steps span.done{background:var(--ok)}.opts{display:grid;gap:10px;margin-top:16px}.opts button{padding:14px;border-radius:12px;border:1.5px solid var(--line);background:#fff;font-size:15px;text-align:left;cursor:pointer}.opts button.correct{border-color:var(--ok);background:var(--ok-soft)}.opts button.wrong{border-color:var(--bad);background:var(--bad-soft)}.rating{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px}.rating button{padding:11px 0;border-radius:10px;border:1.5px solid var(--line);background:#fff;font-size:14px;cursor:pointer}.rating button:active{border-color:var(--brand)}.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.cal .d{aspect-ratio:1;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;background:#f0f0f0;color:var(--text-3)}.cal .d.done{background:var(--brand);color:#fff}.cal .d.missed{background:var(--bad-soft);color:var(--bad)}.cal .d.today{outline:2px solid var(--brand);outline-offset:1px}.toast{position:fixed;left:50%;bottom:calc(96px + var(--safe-bottom));transform:translate(-50%);background:#212121eb;color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;z-index:99;max-width:86vw}.install-tip{margin:0 16px 12px;background:var(--brand-soft);border:1px dashed var(--brand);border-radius:var(--radius);padding:12px 14px;font-size:13px;color:var(--brand-deep);display:flex;align-items:center;gap:10px}.install-tip b{flex:1;font-weight:600}.loading{padding:60px 0;text-align:center;color:var(--text-3)}.spinner{width:26px;height:26px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;margin:0 auto 10px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty{text-align:center;color:var(--text-3);padding:44px 0;font-size:14px}