:root {
    color-scheme: light;
    --color-china-red: #c8102e;
    --color-china-red-hover: #a90d26;
    --color-china-red-active: #8f0b20;
    --color-charcoal: #1a1d21;
    --color-text-primary: #33383f;
    --color-text-secondary: #66707a;
    --color-text-muted: #8b9097;
    --color-warm-white: #fafaf9;
    --color-pure-white: #ffffff;
    --color-soft-gray: #e6ebeb;
    --color-border: #dfe4e7;
    --color-surface-muted: #f5f7f7;
    --color-info-soft: #edf5ff;
    --color-success: #28a745;
    --color-success-dark: #207a38;
    --color-success-soft: #edf8f0;
    --color-warning: #b7791f;
    --color-warning-soft: #fff8e8;
    --color-error: #e03a3a;
    --color-error-soft: #fff0f0;
    --font-heading: "Playfair Display", Georgia, "Times New Roman", serif;
    --font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04);
    --shadow-md: 0 4px 12px rgba(16, 24, 40, .06);
    --focus-ring: rgba(200, 16, 46, .25);
    --ink: var(--color-charcoal);
    --muted: var(--color-text-secondary);
    --line: var(--color-border);
    --paper: var(--color-pure-white);
    --canvas: var(--color-warm-white);
    --green: var(--color-china-red);
    --green-dark: var(--color-china-red-hover);
    --green-soft: #fdf0f2;
    --amber-soft: var(--color-warning-soft);
    --red-soft: var(--color-error-soft);
    --shadow: var(--shadow-sm);
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--canvas); color: var(--color-text-primary); font-family: var(--font-body); }
button, input, select { font: inherit; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 14px; color: var(--color-pure-white); background: var(--color-china-red-active); border-radius: var(--radius-md); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 3px; }
.site-header { height: 72px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(24px, calc((100vw - 1120px) / 2)); background: rgba(255, 255, 255, .94); border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); text-decoration: none; display: inline-flex; gap: 11px; align-items: center; font-weight: 750; }
.brand-mark { width: 30px; height: 40px; display: grid; place-items: center; flex: 0 0 auto; overflow: hidden; }
.brand-mark img { width: 100%; height: 100%; display: block; object-fit: contain; }
.header-note, .expiry-note { color: var(--muted); font-size: 13px; }
.site-nav { display: flex; align-items: center; gap: 20px; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: 13px; font-weight: 750; }
.site-nav a:hover { color: var(--green); }
.page-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0, .8fr) minmax(520px, 1.2fr); gap: 72px; align-items: start; padding: 80px 0 96px; }
.hero-copy { padding-top: 30px; position: sticky; top: 48px; }
.eyebrow, .step-label { margin: 0 0 12px; color: var(--green); text-transform: uppercase; font-size: 12px; line-height: 1.3; letter-spacing: .12em; font-weight: 800; }
.hero-copy h1 { max-width: 580px; margin: 0; font-family: var(--font-heading); font-size: clamp(44px, 5vw, 72px); line-height: .98; letter-spacing: -.045em; }
.hero-copy > p:last-child { max-width: 500px; margin-top: 28px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.checker-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 4vw, 44px); box-shadow: var(--shadow); }
.intro-card { display: grid; gap: 30px; }
.intro-card h2, .question-heading h2, .result-heading h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); letter-spacing: -.025em; }
.intro-card p, .question-heading p, .result-card p { color: var(--muted); line-height: 1.6; }
.trust-list { margin: 0; padding: 0; display: grid; gap: 12px; list-style: none; color: var(--muted); }
.trust-list li::before { content: "✓"; color: var(--green); font-weight: 800; margin-right: 10px; }
.button { border: 1px solid transparent; border-radius: var(--radius-md); min-height: 48px; padding: 0 20px; cursor: pointer; font-weight: 750; }
.button-primary { color: var(--color-pure-white); background: var(--color-china-red); border-color: var(--color-china-red); box-shadow: none; }
.button-primary:hover { background: var(--color-china-red-hover); border-color: var(--color-china-red-hover); }
.button-primary:active { background: var(--color-china-red-active); border-color: var(--color-china-red-active); }
.button:disabled { cursor: wait; opacity: .65; }
.button-secondary { color: var(--color-text-primary); background: var(--color-pure-white); border-color: var(--line); }
.button-secondary:hover { color: var(--color-china-red-hover); border-color: var(--color-china-red); background: var(--color-warm-white); }
.button-quiet { color: var(--color-china-red); background: transparent; padding-left: 0; }
.progress-row { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.progress-track { width: 100%; height: 5px; display: block; margin: 10px 0 34px; overflow: hidden; appearance: none; border: 0; border-radius: var(--radius-sm); background: var(--color-soft-gray); }
.progress-track::-webkit-progress-bar { background: var(--color-soft-gray); border-radius: var(--radius-sm); }
.progress-track::-webkit-progress-value { background: var(--green); border-radius: 9px; transition: width .2s ease; }
.progress-track::-moz-progress-bar { background: var(--green); border-radius: var(--radius-sm); }
.checker-card-success .progress-row,
.checker-card-success .result-heading .step-label { color: var(--color-success-dark); }
.checker-card-success .progress-track::-webkit-progress-value { background: var(--color-success); }
.checker-card-success .progress-track::-moz-progress-bar { background: var(--color-success); }
.question-heading { margin-bottom: 28px; }
.confirmation-heading { margin-bottom: 24px; }
.confirmation-heading h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); letter-spacing: -.025em; }
.confirmation-heading p:last-child { color: var(--muted); line-height: 1.6; }
.answer-review { display: grid; gap: 10px; margin: 0; }
.answer-review-row { padding: 14px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--color-surface-muted); }
.answer-review-row dt { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.answer-review-row dd { display: flex; align-items: baseline; flex-wrap: wrap; gap: 9px; margin: 4px 0 0; font-weight: 700; overflow-wrap: anywhere; }
.inline-edit-form { display: inline; }
.edit-answer-link { display: inline-flex; align-items: center; gap: 4px; min-height: 24px; padding: 0; border: 0; color: var(--color-china-red); background: transparent; cursor: pointer; font-size: 13px; font-weight: 800; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.edit-answer-link:hover { color: var(--color-china-red-hover); }
.edit-answer-link svg { fill: currentColor; flex: 0 0 auto; }
.confirmation-form { margin-top: 22px; }
.question-heading p:last-child { margin-bottom: 0; }
.transit-route { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: -8px 0 24px; padding: 13px 15px; border: 1px solid #f1c9d0; border-radius: var(--radius-md); color: var(--color-text-primary); background: var(--green-soft); font-size: 13px; }
.transit-route span { color: var(--muted); }
.question-form { display: grid; gap: 20px; }
.answer-controls { display: grid; gap: 20px; transition: opacity .15s ease; }
.answer-controls.is-disabled { opacity: .48; }
.field-label { display: block; color: var(--muted); font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.field-control { width: 100%; min-height: 50px; padding: 0 14px; border: 1px solid var(--line); border-radius: var(--radius-md); color: var(--ink); background: var(--color-pure-white); }
.field-control:focus, .choice-card:has(input:focus-visible) { outline: 3px solid var(--focus-ring); border-color: var(--color-china-red); }
.choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.choice-card { min-height: 56px; display: flex; gap: 10px; align-items: center; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-md); cursor: pointer; }
.choice-card span { display: grid; gap: 3px; }
.choice-card small { color: var(--muted); font-size: 12px; line-height: 1.35; }
.choice-card:has(input:checked) { border-color: var(--color-china-red); background: var(--green-soft); }
.date-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.unknown-option { display: flex; gap: 10px; align-items: center; color: var(--muted); }
.option-filter { display: grid; gap: 8px; }
.option-filter .field-label { margin-bottom: 0; }
.option-summary { margin: 0; color: var(--muted); font-size: 12px; }
.panel-footer { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.alert { margin: 0 0 22px; padding: 13px 15px; border: 1px solid #f2c7c7; border-radius: var(--radius-md); background: var(--red-soft); color: #9e2525; }
.result-heading { margin-bottom: 22px; }
.result-card { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; background: var(--color-pure-white); }
.result-primary { border-color: var(--line); background: var(--color-pure-white); }
.result-success { border-color: #b9e4c2; background: var(--color-success-soft); }
.result-success .status-pill { color: var(--color-success-dark); }
.result-success h3,
.result-success .condition-pass li { color: var(--color-success-dark); }
.result-success .policy-comparison div,
.result-success .explanation-grid section,
.result-success .official-sources { border-color: #cbe8d1; }
.result-manual { background: var(--amber-soft); }
.result-no-match { background: var(--red-soft); }
.status-fail { color: #9e2525; }
.result-card h3 { margin: 12px 0 6px; font-size: 26px; }
.status-pill { display: inline-flex; padding: 6px 9px; color: var(--color-china-red-hover); background: var(--color-pure-white); border: 1px solid currentColor; border-radius: 999px; font-size: 11px; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.source-note { font-size: 13px; }
.policy-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 16px; margin: 18px 0 0; }
.policy-comparison div { min-width: 0; padding-top: 10px; border-top: 1px solid var(--color-border); }
.policy-comparison dt { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.policy-comparison dd { margin: 4px 0 0; font-size: 13px; font-weight: 700; overflow-wrap: anywhere; }
.explanation-grid { margin-top: 24px; display: grid; gap: 18px; }
.explanation-grid section { padding-top: 18px; border-top: 1px solid var(--color-border); }
.explanation-grid h4 { margin: 0 0 10px; }
.condition-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.condition-list li { display: grid; gap: 2px; padding-left: 22px; position: relative; }
.condition-list li::before { position: absolute; left: 0; font-weight: 900; }
.condition-pass li::before { content: "✓"; color: var(--color-success); }
.condition-unknown li::before { content: "△"; color: var(--color-warning); }
.condition-fail li::before { content: "×"; color: var(--color-error); }
.condition-list small, .empty-note { color: var(--muted); }
.official-sources { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--color-border); }
.official-sources h4 { margin: 0 0 10px; }
.official-sources ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.official-sources li { display: grid; gap: 3px; }
.official-sources a { color: var(--color-text-primary); font-weight: 750; overflow-wrap: anywhere; }
.official-sources a:hover { color: var(--color-china-red-hover); }
.official-sources small, .alternatives small { display: block; margin-top: 4px; color: var(--muted); }
.alternatives, .failed-options, .edit-answers { margin-top: 26px; }
.result-guides { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line); }
.result-guides > h3 { margin: 0 0 8px; }
.result-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.result-guide-grid article { padding: 17px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--color-pure-white); }
.result-guide-grid span { color: var(--green); font-size: 10px; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.result-guide-grid h4 { margin: 8px 0; font-size: 17px; }
.result-guide-grid h4 a { color: var(--ink); text-decoration: none; }
.result-guide-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.alternatives h3, .failed-options h3, .edit-answers h3 { font-size: 17px; }
.alternatives-intro { margin: 0 0 14px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.alternative-card { margin-top: 12px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--color-pure-white); }
.failed-option-card { margin-top: 12px; padding: 18px; border: 1px solid #f2c7c7; border-radius: var(--radius-lg); background: var(--red-soft); }
.failed-option-reasons { margin-top: 16px; padding-top: 14px; border-top: 1px solid #f2c7c7; }
.alternative-card-heading { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.alternative-card-heading strong { display: block; font-size: 17px; }
.alternative-conditions { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.alternative-conditions h4 { margin: 0 0 10px; font-size: 14px; }
.edit-grid { display: grid; gap: 8px; }
.edit-button { width: 100%; display: flex; justify-content: space-between; gap: 20px; text-align: left; color: var(--ink); border: 1px solid var(--line); background: var(--color-pure-white); border-radius: var(--radius-md); padding: 13px 14px; cursor: pointer; }
.edit-button strong { color: var(--green); }
.share-result { margin-top: 28px; padding: 20px; display: grid; grid-template-columns: 1fr auto; gap: 14px 20px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--color-surface-muted); }
.share-result h3 { margin: 0 0 5px; font-size: 17px; }
.share-result p { margin: 0; font-size: 13px; }
.copy-status { min-height: 1.3em; grid-column: 1 / -1; color: var(--green-dark); font-size: 13px; }
.editorial-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto 88px; padding: clamp(28px, 5vw, 56px); background: var(--color-pure-white); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.error-shell { margin-top: 10vh; }
.editorial-shell > article { max-width: 720px; }
.editorial-shell h2 { margin: 0; font-family: var(--font-heading); font-size: clamp(30px, 4vw, 48px); letter-spacing: -.035em; }
.editorial-shell p { color: var(--muted); line-height: 1.7; }
.editorial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.editorial-grid article { padding-top: 18px; border-top: 2px solid var(--green-soft); }
.editorial-grid span { color: var(--green); font-size: 12px; font-weight: 850; }
.editorial-grid h3 { margin: 10px 0 4px; }
.site-footer { max-width: 1120px; margin: 0 auto; padding: 32px 16px 48px; color: var(--muted); font-size: 13px; line-height: 1.6; text-align: left; }
.site-footer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 42px; padding-top: 24px; border-top: 1px solid var(--line); }
.site-footer h2 { margin: 0 0 14px; color: var(--ink); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.site-footer ul { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--green); }
.site-footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.site-footer-bottom p { margin: 0; }
@media (max-width: 860px) {
    .page-shell { grid-template-columns: 1fr; gap: 32px; padding-top: 44px; }
    .hero-copy { position: static; padding-top: 0; }
    .hero-copy h1 { font-size: clamp(42px, 12vw, 64px); }
    .editorial-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
    .site-header { height: 64px; padding: 0 16px; }
    .site-footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
    .site-footer-bottom { align-items: flex-start; flex-direction: column; gap: 10px; }
    .header-note { display: none; }
    .site-nav { gap: 12px; }
    .page-shell { width: min(100% - 20px, 620px); padding: 30px 0 64px; }
    .checker-card { padding: 22px 18px; border-radius: 18px; }
    .choice-grid, .date-grid { grid-template-columns: 1fr; }
    .policy-comparison { grid-template-columns: 1fr; }
    .result-guide-grid { grid-template-columns: 1fr; }
    .alternative-card-heading { align-items: stretch; flex-direction: column; }
    .panel-footer { align-items: flex-start; flex-direction: column; }
    .share-result { grid-template-columns: 1fr; }
    .copy-status { grid-column: auto; }
    .editorial-shell { width: min(100% - 20px, 620px); margin-bottom: 54px; padding: 24px 20px; border-radius: 18px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}