:root{--canvas:#f5f2e9;--surface:#fffdf8;--text:#2d2b25;--muted:#696252;--accent:#87583a;--rule:#ccc5b8;--success:#286342;--success-bg:#eef7f0;--error:#9c392b;--error-bg:#fff1ed;--warning:#785215;--warning-bg:#fff6e5;--radius:13px;--font:-apple-system,BlinkMacSystemFont,"PingFang TC","Hiragino Sans","Noto Sans TC",sans-serif;color-scheme:light;font-family:var(--font);font-size:17px;line-height:1.65;color:var(--text);background:var(--canvas);font-synthesis:none;scrollbar-color:var(--muted) var(--canvas)}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit;color:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:var(--accent);text-underline-offset:4px}a:hover{color:var(--text)}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}input{caret-color:var(--accent)}input::placeholder{color:var(--muted)}::selection{color:var(--surface);background:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}h1,h2,h3,h4,p{margin:0}h1{font-size:clamp(1.8rem,3vw,2.2rem);line-height:1.3;letter-spacing:-.025em;font-weight:700;text-wrap:balance}h2{font-size:1.4rem;line-height:1.4}h3{font-size:1.08rem}p{max-width:70ch}small,.small{font-size:.8rem;color:var(--muted)}[hidden]{display:none!important}.skip-link{position:fixed;top:-80px;left:16px;z-index:10;padding:10px;background:var(--surface)}.skip-link:focus{top:10px}.site-header{height:80px;padding:0 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var(--rule)}.correction-table th{color:var(--muted);font-weight:500}.correction-table td:first-child{min-width:140px}.table-wrap{overflow-x:auto}#storage-notice{padding:15px;border:1px solid var(--warning);background:var(--warning-bg);font-size:.8rem;border-radius:7px;margin-bottom:20px}.load-error{padding:25px;border:1px solid var(--error);border-radius:8px}.load-error p{margin:10px 0 15px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1550px){.workspace{padding-top:54px}.sidebar{padding-top:53px}.panel{padding:34px 38px}}
@media(max-width:1100px){.app-shell{grid-template-columns:200px minmax(0,1fr)}.sidebar{padding-inline:16px}.regions{grid-template-columns:repeat(3,minmax(0,1fr))}.panel{padding:24px}.workspace{padding-inline:28px}}
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@media(max-width:359px){.workspace{padding-inline:14px}.site-header{padding-inline:16px}.panel{padding:18px 14px}.regions{grid-template-columns:repeat(2,minmax(0,1fr))}.sidebar{padding-inline:10px}.sidebar nav a{padding-inline:10px}.question-name{font-size:1.32rem}.clock strong{font-size:2.1rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.bone-sections .small{margin-bottom:4px}.bone-section-actions{display:flex;flex-wrap:wrap;gap:4px 20px;margin-bottom:10px}.bone-sections .choice{min-height:56px}.bone-sections .choice small{font-variant-numeric:tabular-nums}.filters-line+.bone-sections{margin-top:24px}.bone-sections .text-button{min-height:44px}

.bone-section-groups{display:grid;grid-template-columns:1fr 1fr;gap:20px}.bone-section-groups h3{font-size:.9rem;font-weight:550;margin-bottom:10px}.bone-sections{margin-bottom:26px}.select-field select:disabled{color:var(--muted);background:var(--canvas)}@media(max-width:1100px){.bone-section-groups{grid-template-columns:1fr}}