@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}}:root{color:#25392f;--accent:#275e47;--muted:#617068;--border:#dce4da;--radius:16px;--shadow:0 8px 30px #243e2c08;--space:8px;--motion:.12s;--z-header:10;background:#f6f7f2;font-family:Inter,Noto Sans TC,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.65}*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button,a,input,select,summary{outline-offset:4px}:focus-visible{outline:3px solid #ac6a1e}button:disabled{opacity:.55;cursor:not-allowed}h1,h2,p{margin:0}h1{letter-spacing:-.025em;font-size:32px;font-weight:700;line-height:1.35}h2{margin-bottom:12px;font-size:23px;font-weight:650;line-height:1.4}.site-header{justify-content:space-between;align-items:center;gap:16px;max-width:1200px;height:96px;margin:auto;padding:0 32px;display:flex}.brand{letter-spacing:-.04em;color:#203f30;align-items:center;gap:10px;font-size:22px;font-weight:750;display:flex}.brand-mark{background:var(--accent);color:#eff4d2;border-radius:8px;place-items:center;width:32px;height:32px;display:grid}.brand-tag{letter-spacing:.05em;border-left:1px solid var(--border);color:var(--muted);margin-left:8px;padding-left:12px;font-size:12px;font-weight:400}.container{max-width:1140px;min-height:calc(100vh - 175px);margin:0 auto;padding:32px 32px 72px}.narrow{max-width:640px;margin:auto}.card{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:32px}.page-heading{margin:16px 0 32px}.page-heading .muted{margin-top:16px}.eyebrow{letter-spacing:.14em;color:var(--accent);margin-bottom:12px;font-size:12px;font-weight:700}.muted{color:var(--muted)}.button{cursor:pointer;min-height:48px;transition:background var(--motion);border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:12px;padding:12px 24px;font-weight:650;display:inline-flex}.button:hover{text-decoration:none}.button-primary{background:var(--accent);color:#fff}.button-primary:hover{background:#194b35}.button-secondary{border-color:var(--border);color:var(--accent);background:0 0}.button-secondary:hover{background:#edf2e9}.full{width:100%}.login-layout{grid-template-columns:1.2fr 1fr;align-items:center;gap:80px;min-height:590px;display:grid}.intro h1{letter-spacing:-.055em;font-size:64px;line-height:1.25}.intro h1 span{color:var(--accent);position:relative}.intro-copy{color:var(--muted);margin-top:28px;font-size:18px;line-height:1.9}.steps{color:var(--accent);flex-wrap:wrap;gap:20px;margin-top:44px;font-size:12px;display:flex}.login-card{text-align:center;padding:48px 32px}.login-card .button{width:100%;margin:32px 0 20px}.pixel-art{place-items:center;height:100px;margin-bottom:24px;display:grid}.pixel-art span{color:#45662b;background:#eaf0db;border:8px solid #eaf0db;font-size:62px;line-height:1;box-shadow:8px 0 #dae5c6,-8px 0 #dae5c6,0 8px #dae5c6,0 -8px #dae5c6}.privacy-note{color:var(--muted);font-size:12px;line-height:1.8}.google-g{color:#3262b4;background:#fff;border-radius:50%;width:24px;height:24px;font-weight:800;line-height:24px}.alert{color:#86462a;overflow-wrap:anywhere;background:#fff5ee;border:1px solid #e1bcaa;border-radius:8px;margin:16px 0;padding:16px}.alert .button{margin-top:12px}.loading{max-width:640px;margin:40px auto}.skeleton{background:#e5e9e0;border-radius:12px;height:90px;margin-bottom:16px}.skeleton.short{width:55%;height:32px}label{margin-bottom:8px;font-weight:600;display:block}select{border:1px solid var(--border);color:#25392f;background:#fff;border-radius:8px;width:100%;min-height:52px;margin-bottom:24px;padding:12px}.note{color:var(--muted);background:#f3f6ed;border-radius:8px;margin-bottom:28px;padding:16px;font-size:14px}.history{margin-top:40px}.history h2{font-size:18px}.history-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:20px 0;font-size:14px;display:flex}.history-row small{color:var(--muted);display:block}.empty{border:1px dashed var(--border);color:var(--muted);border-radius:12px;padding:24px;font-size:15px}.practice{max-width:800px;margin:0 auto}.practice-top{color:var(--muted);justify-content:space-between;gap:12px;margin-bottom:36px;font-size:13px;display:flex}.progress-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.progress-heading .eyebrow{margin:0}progress{background:#e2e8dc;border:0;border-radius:8px;width:100%;height:6px;margin:16px 0 28px;display:block;overflow:hidden}progress::-webkit-progress-bar{background:#e2e8dc}progress::-webkit-progress-value{background:var(--accent)}progress::-moz-progress-bar{background:var(--accent)}.source{color:var(--muted);margin-bottom:16px;font-size:12px}.question-stem{letter-spacing:0;white-space:pre-line;overflow-wrap:anywhere;margin-bottom:28px;font-size:20px;font-weight:600;line-height:1.7}fieldset{border:0;min-width:0;margin:0;padding:0}.answer-option{border:1px solid var(--border);cursor:pointer;overflow-wrap:anywhere;border-radius:10px;align-items:center;gap:14px;margin-bottom:12px;padding:16px;font-size:16px;font-weight:400;display:flex}.answer-option input{accent-color:var(--accent);flex:0 0 16px;width:16px}.option-key{color:var(--muted);font-weight:700}.answer-option.selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:#f0f5e9}.correct-option{border-color:#528258}.feedback{border-radius:10px;margin-top:24px;padding:20px}.feedback.correct{color:#2a5630;background:#edf5e7}.feedback.incorrect{color:#794420;background:#fff4e7}.feedback p{margin-top:6px}.feedback a{font-size:13px;text-decoration:underline}.question-actions{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:20px;margin-top:28px;padding-top:24px;display:flex}.question-actions .muted{font-size:12px}.result{text-align:center}.result-star{color:#577b36;margin:8px 0 24px;font-size:52px;line-height:1.3}.score{letter-spacing:-.05em;color:var(--accent);font-size:88px;font-weight:750;line-height:1.2}.score span{margin-left:6px;font-size:32px}.result-stats{justify-content:center;gap:48px;margin:28px 0 36px;display:flex}.result-stats strong,.result-stats span{display:block}.result-stats strong{font-size:24px}.result-stats span{color:var(--muted);font-size:13px}.back-link{margin-top:20px;font-size:14px;display:block}.review{text-align:left;border:1px solid var(--border);border-radius:12px;margin-top:24px;padding:20px}.review summary{cursor:pointer}.review div{border-bottom:1px solid var(--border);padding:20px 0;font-size:14px}.review div p+p{color:var(--muted);margin-top:8px}footer{border-top:1px solid var(--border);max-width:1140px;color:var(--muted);justify-content:space-between;gap:12px;margin:auto;padding:24px 32px;font-size:12px;display:flex}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media(max-width:767px){.site-header{height:76px;padding:0 16px}.brand-tag{display:none}.brand{font-size:20px}.container{padding:20px 16px 48px}.login-layout{flex-direction:column;align-items:stretch;gap:36px;min-height:0;display:flex}.intro{padding:12px 8px 0}.intro h1{font-size:44px}.intro-copy{margin-top:20px;font-size:16px}.steps{gap:16px;margin-top:24px}.login-card{padding:28px 24px}.pixel-art{height:56px;margin-bottom:28px}.pixel-art span{font-size:36px}.card{padding:24px}.page-heading{margin:12px 0 24px}h1{font-size:28px}.question-card{padding:20px}.question-stem{font-size:18px}.answer-option{gap:10px;padding:14px 12px}.question-actions{flex-direction:column;align-items:stretch;gap:12px}.question-actions .muted{text-align:center}.practice-top{margin-bottom:28px;font-size:12px}.score{font-size:72px}footer{flex-wrap:wrap;padding:20px 16px}.site-header .button{min-height:44px;padding:8px 16px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}