:root{font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#263c34;background:#f7f5ef;font-synthesis:none;--green:#2b6354;--muted:#7c857e;--line:#e3e6dc}*{box-sizing:border-box}body{margin:0}.page{max-width:1000px;padding:0 40px;margin:auto}header{height:115px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none;font-weight:650;font-size:20px;letter-spacing:2px}.seal{background:var(--green);color:#fff;border-radius:12px;width:45px;height:45px;display:grid;place-items:center;font-family:serif;font-size:28px;letter-spacing:0}.brand small{display:block;font-size:9px;font-weight:500;letter-spacing:1.7px;color:var(--muted);margin-top:4px}.header-note{font-size:12px;color:var(--muted)}main{max-width:760px;margin:54px auto 0}.intro{display:flex;justify-content:space-between;align-items:center;gap:20px}.eyebrow{font-size:12px;letter-spacing:1px;color:var(--green);margin:0 0 14px}.eyebrow span{color:var(--muted);margin-left:10px;letter-spacing:0}h1{font-size:34px;letter-spacing:-1px;font-weight:650;margin:0 0 12px}.sub{color:var(--muted);font-size:14px;margin:0}.stats{display:flex;gap:28px;flex-shrink:0}.stats span{font-size:11px;color:var(--muted);text-align:center}.stats b{display:block;color:var(--green);font-size:25px;font-weight:550;margin-bottom:7px}nav{display:flex;gap:8px;flex-wrap:wrap;margin:34px 0 20px}button,input{font:inherit}button{cursor:pointer;touch-action:manipulation}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid #dc9a42;outline-offset:4px}nav button{border:1px solid transparent;background:transparent;border-radius:24px;color:#6f7972;padding:10px 18px;font-size:13px}nav button.active{background:var(--green);color:#fff}nav button:hover:not(.active){background:#eaece3}.card{background:#fffefa;border:1px solid #e4e6dc;border-radius:18px;padding:30px 34px;box-shadow:0 10px 35px #334f3b05}.card-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:26px}.badge{font-size:11px;letter-spacing:1px;color:var(--green);background:#edf2e9;padding:6px 10px;border-radius:6px}.reading-toggle{font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center;cursor:pointer;white-space:nowrap}input{accent-color:var(--green)}h2{font-size:15px;font-weight:550;line-height:1.7;margin:0 0 22px}.question{font-size:25px;line-height:2.4;overflow-wrap:anywhere;font-family:"Yu Gothic","Microsoft YaHei",sans-serif}.passage{font-size:19px;line-height:2.6;background:#f5f5ee;border-left:3px solid #bdcbbb;border-radius:0 8px 8px 0;padding:16px 20px;margin-bottom:20px}.hint{color:#8a9088;font-size:12px;line-height:1.7;margin:10px 0 20px}ruby{ruby-align:center}rt{font-size:.46em;color:#7f897c;font-weight:400;letter-spacing:.02em}.no-ruby rt{visibility:hidden}.options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.option{position:relative;border:1px solid var(--line);background:#fffefa;padding:13px 16px;border-radius:10px;min-height:64px;display:flex;align-items:center;gap:14px;text-align:left;color:#35483d;font-size:19px;line-height:2}.option .letter{font-size:11px;color:#92988f;width:24px;height:24px;border:1px solid #e5e8de;display:grid;place-items:center;border-radius:6px;flex-shrink:0;line-height:1}.option:hover:not(:disabled){border-color:#87a28f;background:#f6f8f1}.option.selected{border-color:var(--green);background:#edf3e9}.option.selected .letter{background:var(--green);color:white;border-color:var(--green)}.option.correct{border-color:#4b8970;background:#edf5ed}.option.wrong{border-color:#c67d6e;background:#fcf0eb}.option:disabled{cursor:default;opacity:1}.actions{display:flex;align-items:center;gap:18px;margin-top:28px;flex-wrap:wrap}.primary{display:flex;justify-content:space-between;gap:30px;border:0;border-radius:9px;background:var(--green);color:white;padding:14px 23px;font-size:14px;min-width:170px}.primary:hover{background:#204f42}.primary:disabled{background:#e5e9df;color:#929b8e;cursor:default}.text-button{color:#7b847a;background:none;border:0;padding:10px 2px;font-size:13px}#skip{margin-left:auto}.under{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:#90978c;margin:16px 4px}.footnote{text-align:center;color:#9ba092;font-size:11px;line-height:2.1;margin:42px 0}.result{border-top:1px solid var(--line);margin-top:26px;padding-top:24px;outline:none}.result h3{margin:0 0 12px;font-size:18px;color:var(--green)}.result.incorrect h3{color:#aa6553}.result p{font-size:14px;line-height:2.1;margin:10px 0;color:#56634f}.result .answer{background:#f0f4eb;padding:12px 16px;border-radius:8px;color:#2e5443;font-size:19px;line-height:2.5}.result small{font-size:11px;letter-spacing:1px;color:#7d8d77;display:block;margin-top:19px}.next{margin-top:20px}.answer-area:empty{display:none}.answer-area{border:1px dashed #c1cdbb;border-radius:10px;background:#f6f8f1;min-height:82px;padding:12px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.answer-area .placeholder{font-size:13px;color:#949c8e}.word{font-size:19px;line-height:2.3;border:1px solid #dce2d5;background:#fffefa;border-radius:8px;padding:8px 15px;color:#35483d}.word:disabled{opacity:.35;cursor:default}.word-bank{display:flex;flex-wrap:wrap;gap:10px}.word-bank .word{flex:0 1 auto}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:22px 0 30px;font-size:10px;color:#939b8e;letter-spacing:1px}[hidden]{display:none!important}@media(max-width:600px){.page{padding:0 20px}header{height:88px}.header-note{display:none}main{margin-top:32px}h1{font-size:28px}.eyebrow{font-size:10px}.eyebrow span{margin-left:5px}.intro{gap:12px;align-items:flex-start}.stats{gap:14px;padding-top:28px}.stats b{font-size:20px}.stats span{font-size:10px}.sub{font-size:12px}nav{gap:4px;margin:26px 0 16px}nav button{padding:9px 12px;font-size:12px}.card{padding:22px 20px;border-radius:14px}.card-top{margin-bottom:22px}h2{font-size:14px}.question{font-size:22px}.options{grid-template-columns:1fr;gap:10px}.option{min-height:58px;padding:10px 14px;font-size:18px}.passage{font-size:18px;padding:12px 14px}.actions{gap:12px}.primary{min-width:154px;padding:13px 18px}.under{font-size:10px;line-height:1.7;flex-wrap:wrap}.footnote{margin:30px 0}.word{font-size:18px;padding:7px 11px}}@media(prefers-reduced-motion:no-preference){.card{animation:appear .3s ease}@keyframes appear{from{opacity:.6;transform:translateY(5px)}to{opacity:1;transform:none}}}
.account-bar{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted)}.account-button{border:1px solid #cbd7c9;border-radius:8px;background:#fffefa;color:var(--green);padding:9px 13px;font-size:12px}.account-panel{margin-top:28px;padding:24px;background:#fffefa;border:1px solid var(--line);border-radius:14px}.account-heading{display:flex;align-items:center;justify-content:space-between}.account-heading h2{margin:0}.account-panel p{font-size:13px;line-height:1.9;color:#66735e}.auth-tabs{display:flex;gap:8px;margin:18px 0}.auth-tabs button{border:1px solid var(--line);padding:8px 22px;border-radius:8px;background:transparent;color:var(--green)}.auth-tabs button[aria-pressed=true]{background:var(--green);color:white}#account-form{max-width:430px}#account-form label{display:block;font-size:12px;margin:15px 0 7px}#account-form input{width:100%;padding:12px;border:1px solid #cbd7c9;border-radius:8px;background:white;font-size:16px}.notice{border:1px solid #dfc9a3;background:#fff8eb;padding:12px;border-radius:8px;font-size:13px;line-height:1.8}.result .source-note{font-size:11px;color:#929a89;overflow-wrap:anywhere}.footnote a,.credits a{color:var(--green)}.credits{padding:35px 24px 65px;max-width:780px;line-height:2}.credits h1{margin-top:30px}.credits h2{margin-top:30px;font-size:21px}.credits p{font-size:15px}.account-panel button:disabled{opacity:.5;cursor:wait}@media(max-width:600px){.account-bar{gap:6px}.account-bar>span{max-width:95px;overflow:hidden;text-overflow:ellipsis;font-size:10px}.account-button{padding:8px 9px;font-size:11px}.brand{font-size:17px;gap:8px;letter-spacing:1px}.brand small{font-size:8px;letter-spacing:1px}.seal{width:38px;height:38px;font-size:25px}.account-panel{padding:20px 16px}}
.code-row{display:flex;gap:9px;align-items:center}.code-row input{flex:1;min-width:0}.code-row button{flex-shrink:0;white-space:nowrap}.auth-tabs{flex-wrap:wrap}#binding-form{max-width:430px}#binding-form label{display:block;font-size:12px;margin:15px 0 7px}#binding-form input{width:100%;padding:12px;border:1px solid #cbd7c9;border-radius:8px;background:white;font-size:16px}#binding-form .primary{margin-top:18px}.account-bar>span{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-panel .code-row input{width:0}@media(max-width:600px){.account-bar>span{max-width:80px}.auth-tabs button{padding:8px 15px}}

/* Keep form focus at the normal mobile scale and allow scrolling without pinch zoom. */
html{touch-action:pan-x pan-y;-webkit-text-size-adjust:100%;text-size-adjust:100%}#account-form input,#binding-form input{font-size:16px;min-width:0;max-width:100%}#account-form,#binding-form{width:100%;min-width:0}.account-panel{min-width:0}