:root {
  --page-bg: #f3ece2;
  --surface: #fbf8f1;
  --surface-strong: #fffdf8;
  --text-primary: #38342e;
  --text-secondary: #827a70;
  --line: #ddd5c8;
  --accent-warm: #b86f55;
  --accent-deep: #95523e;
  --accent-soft: #ead8cd;
  --shadow: 0 24px 70px rgba(78, 61, 44, .10);
}

* { box-sizing: border-box; }
html { overflow-x: clip; background: var(--page-bg); }
body {
  margin: 0;
  overflow-x: clip;
  color: var(--text-primary);
  background:
    radial-gradient(circle at 12% 10%, rgba(255,255,255,.65), transparent 24rem),
    radial-gradient(circle at 90% 88%, rgba(184,111,85,.08), transparent 26rem),
    var(--page-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.site-shell { width: min(100% - 28px, 720px); min-height: 100svh; margin: 0 auto; padding: 28px 0; display: grid; align-items: center; }
.paper-card { position: relative; overflow: hidden; background: rgba(251,248,241,.96); border: 1px solid rgba(175,160,142,.55); box-shadow: var(--shadow); border-radius: 28px; }
.paper-card::before { content: ""; position: absolute; inset: 10px; border: 1px solid rgba(184,111,85,.15); border-radius: 21px; pointer-events: none; }
.is-hidden { display: none !important; }

.home-card { min-height: min(760px, calc(100svh - 56px)); padding: clamp(56px, 10vw, 90px) 26px 44px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.eyebrow { margin: 0; color: var(--accent-warm); font-size: 12px; letter-spacing: .22em; font-weight: 700; }
.ornament { width: 128px; margin: 30px 0 24px; display: flex; align-items: center; gap: 10px; color: var(--accent-warm); }
.ornament span { height: 1px; flex: 1; background: currentColor; opacity: .45; }
.ornament i { width: 8px; height: 8px; border: 1px solid currentColor; transform: rotate(45deg); }
h1, h2 { font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif; font-weight: 600; }
.home-card h1 { margin: 0; font-size: clamp(48px, 11vw, 76px); line-height: 1.16; letter-spacing: .04em; }
.home-meta { margin: 26px 0 0; color: var(--text-secondary); font-size: 16px; letter-spacing: .08em; }
.home-meta b { color: var(--accent-warm); margin: 0 7px; }
.home-note { max-width: 340px; margin: 20px auto 32px; color: var(--text-secondary); line-height: 1.8; font-size: 15px; }
.primary-button, .secondary-button { min-height: 52px; border-radius: 999px; border: 1px solid transparent; padding: 0 28px; cursor: pointer; font-weight: 700; transition: transform .18s ease, background .18s ease, box-shadow .18s ease; }
.primary-button { color: #fffaf4; background: var(--accent-warm); box-shadow: 0 12px 28px rgba(184,111,85,.22); }
.primary-button:hover:not(:disabled) { background: var(--accent-deep); transform: translateY(-1px); }
.primary-button:disabled, .secondary-button:disabled { cursor: not-allowed; opacity: .42; box-shadow: none; }
.text-link { margin-top: 22px; color: var(--text-secondary); text-underline-offset: 5px; font-size: 14px; }

.quiz-card { min-height: min(820px, calc(100svh - 40px)); display: flex; flex-direction: column; }
.quiz-header { position: sticky; top: 0; z-index: 2; padding: 28px 28px 18px; background: rgba(251,248,241,.93); backdrop-filter: blur(12px); }
.quiz-header > p { margin: 9px 0 12px; font-size: 14px; color: var(--text-secondary); }
.brand-link { color: var(--accent-warm); font-size: 11px; letter-spacing: .2em; text-decoration: none; font-weight: 800; }
.progress-track { height: 4px; overflow: hidden; border-radius: 99px; background: var(--line); }
.progress-track span { display: block; height: 100%; border-radius: inherit; background: var(--accent-warm); transition: width .25s ease; }
.question-body { padding: 24px 28px 12px; flex: 1; }
.question-kicker { margin: 0 0 13px; color: var(--accent-warm); font-size: 12px; letter-spacing: .08em; }
.question-body h2 { margin: 0; font-size: clamp(23px, 5.5vw, 32px); line-height: 1.55; }
.question-prompt { margin: 15px 0 24px; color: var(--text-secondary); line-height: 1.7; }
.option-list { display: grid; gap: 10px; }
.option-card { width: 100%; display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; padding: 16px; text-align: left; color: var(--text-primary); background: var(--surface-strong); border: 1px solid var(--line); border-radius: 16px; cursor: pointer; transition: border .18s ease, background .18s ease, transform .18s ease; }
.option-card:hover { border-color: #c9ad9b; transform: translateY(-1px); }
.option-card[aria-pressed="true"] { border: 2px solid var(--accent-warm); background: #fff6ef; padding: 15px; }
.option-index { width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--text-secondary); font-size: 12px; }
.option-card[aria-pressed="true"] .option-index { color: white; border-color: var(--accent-warm); background: var(--accent-warm); }
.option-card strong, .option-card small { display: block; }
.option-card strong { font-size: 15px; line-height: 1.5; }
.option-card small { margin-top: 5px; color: var(--text-secondary); font-size: 13px; line-height: 1.55; }
.selected-label { display: inline-block; margin-top: 8px; color: var(--accent-deep); font-size: 11px; font-style: normal; font-weight: 800; letter-spacing: .08em; }
.answer-hint { min-height: 24px; margin: 14px 2px 0; color: var(--text-secondary); font-size: 13px; }
.quiz-actions { position: sticky; bottom: 0; z-index: 2; padding: 16px 28px 28px; display: flex; justify-content: space-between; gap: 12px; background: linear-gradient(transparent, var(--surface) 18%); }
.secondary-button { color: var(--text-primary); border-color: var(--line); background: var(--surface-strong); }
.compact { min-width: 132px; }

.result-card { min-height: calc(100svh - 56px); }
.result-card::after { content: ""; position: absolute; top: 0; right: 0; width: 190px; height: 190px; border-radius: 0 0 0 100%; background: rgba(234,216,205,.45); pointer-events: none; }
.result-header { position: relative; z-index: 1; padding: 44px clamp(26px, 7vw, 58px) 38px; text-align: center; border-bottom: 1px solid var(--line); }
.result-overline { margin: 56px 0 2px; color: var(--text-secondary); font-size: 15px; letter-spacing: .08em; }
.score-lockup { display: flex; align-items: baseline; justify-content: center; gap: 8px; margin: 2px 0 0; }
.score-lockup strong { font-family: "Songti SC", "STSong", serif; font-size: clamp(82px, 20vw, 132px); line-height: 1; font-weight: 500; color: var(--accent-deep); }
.score-lockup span { color: var(--text-secondary); font-size: 16px; }
.result-header h2 { margin: 12px 0 18px; font-size: clamp(26px, 5vw, 36px); }
.result-reminder { max-width: 500px; margin: 0 auto; color: var(--text-secondary); font-size: 14px; line-height: 1.8; }
.result-content { padding: 0 clamp(24px, 7vw, 58px) 50px; }
.result-section { padding: 42px 0; border-bottom: 1px solid var(--line); }
.section-heading { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 22px; }
.section-heading > span { color: var(--accent-warm); font-family: Georgia, serif; font-style: italic; font-size: 14px; }
.section-heading p, .section-heading h3 { margin: 0; }
.section-heading p { color: var(--text-secondary); font-size: 12px; letter-spacing: .12em; }
.section-heading h3 { margin-top: 4px; font-family: "Songti SC", "STSong", serif; font-size: 26px; font-weight: 600; }
.radar-canvas { width: min(100%, 420px); height: auto; display: block; margin: -14px auto -8px; }
.radar-fallback { padding: 14px; color: var(--text-secondary); background: var(--accent-soft); border-radius: 12px; line-height: 1.6; }
.dimension-bars { display: grid; gap: 22px; }
.dimension-bar > div:first-child { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 9px; }
.dimension-bar strong { font-size: 14px; }
.dimension-bar strong span { margin-left: 5px; color: var(--text-secondary); font-size: 11px; letter-spacing: .08em; }
.dimension-bar b { font-family: Georgia, serif; color: var(--accent-deep); font-size: 20px; }
.dimension-bar b small { color: var(--text-secondary); font-family: inherit; font-size: 11px; font-weight: 400; }
.score-track { height: 9px; overflow: hidden; border-radius: 99px; background: #e8e0d4; }
.score-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #91a49a, #b96c55); }
.dimension-details { display: grid; gap: 14px; }
.dimension-detail { display: grid; grid-template-columns: 72px 1fr; gap: 18px; padding: 22px; background: var(--surface-strong); border: 1px solid var(--line); border-radius: 18px; }
.detail-score { min-height: 76px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-right: 1px solid var(--line); }
.detail-score span { color: var(--text-secondary); font-size: 11px; letter-spacing: .12em; }
.detail-score strong { font-family: Georgia, serif; font-size: 32px; font-weight: 500; }
.detail-name { margin: 0; color: var(--text-secondary); font-size: 12px; }
.dimension-detail h4 { margin: 5px 0 8px; font-size: 17px; }
.dimension-detail div:last-child > p:last-child { margin: 0; color: #675f57; font-size: 14px; line-height: 1.8; }
.result-disclaimer { padding: 40px 0 4px; }
.result-disclaimer > p { margin: 0; color: var(--text-secondary); font-size: 13px; line-height: 1.9; }
.result-actions { margin-top: 26px; display: flex; align-items: center; justify-content: center; gap: 12px; }
.link-button { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }

.modal-open { overflow: hidden; }
.modal-layer { position: fixed; z-index: 20; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(54,48,42,.42); backdrop-filter: blur(7px); }
.modal-card { width: min(100%, 440px); padding: 34px; background: var(--surface-strong); border: 1px solid var(--line); border-radius: 24px; box-shadow: 0 30px 80px rgba(52,40,31,.2); animation: modal-in .2s ease-out; }
.modal-card h2 { margin: 24px 0 10px; font-size: 28px; }
.modal-card > p:not(.eyebrow) { margin: 0; color: var(--text-secondary); line-height: 1.8; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 28px; }
@keyframes modal-in { from { opacity: 0; transform: translateY(6px); } }

:focus-visible { outline: 3px solid rgba(184,111,85,.35); outline-offset: 3px; }
@media (max-width: 520px) {
  .site-shell { width: 100%; padding: 0; }
  .paper-card { min-height: 100svh; border-radius: 0; border-inline: 0; }
  .paper-card::before { display: none; }
  .quiz-header, .question-body { padding-inline: 20px; }
  .quiz-actions { padding-inline: 20px; padding-bottom: max(20px, env(safe-area-inset-bottom)); }
  .result-card { min-height: 100svh; }
  .result-card::after { width: 120px; height: 120px; }
  .result-header { padding-top: 30px; }
  .result-overline { margin-top: 42px; }
  .result-content { padding-inline: 20px; }
  .dimension-detail { grid-template-columns: 58px 1fr; padding: 18px 14px; gap: 14px; }
  .result-actions, .modal-actions { align-items: stretch; flex-direction: column; }
  .result-actions > *, .modal-actions > * { width: 100%; }
  .modal-card { padding: 28px 22px; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }

/* Methodology */
.methodology-page { background: var(--page-bg); }
.method-hero { width: min(100% - 40px, 980px); margin: 0 auto; padding: 48px 0 64px; border-bottom: 1px solid var(--line); }
.back-link { display: inline-block; margin-bottom: 70px; color: var(--text-secondary); text-decoration: none; }
.method-hero h1 { margin: 22px 0 18px; font-size: clamp(48px, 9vw, 88px); line-height: 1.08; letter-spacing: .02em; }
.method-hero > p:last-child { max-width: 530px; margin: 0; color: var(--text-secondary); font-size: 17px; line-height: 1.8; }
.method-layout { width: min(100% - 40px, 980px); margin: 0 auto; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 74px; }
.method-nav { position: sticky; top: 32px; align-self: start; padding: 54px 0; display: grid; gap: 14px; }
.method-nav p { margin: 0 0 8px; color: var(--accent-warm); font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.method-nav a { color: var(--text-secondary); font-size: 13px; text-decoration: none; }
.method-nav a:hover { color: var(--accent-deep); }
.method-article { min-width: 0; }
.method-article > section { padding: 58px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 20px; }
.section-no { margin: 0 0 14px; color: var(--accent-warm); font-family: Georgia, serif; font-size: 14px; font-style: italic; }
.method-article h2 { margin: 0 0 25px; font-family: "Songti SC", "STSong", serif; font-size: clamp(29px, 5vw, 40px); font-weight: 600; }
.method-article h3 { font-size: 16px; }
.method-article section > p:not(.section-no) { color: #5f5850; font-size: 16px; line-height: 1.95; }
.method-note { margin: 30px 0 0; padding: 24px; background: var(--surface-strong); border-left: 3px solid var(--accent-warm); }
.method-note strong { color: var(--accent-deep); }
.method-note p { margin: 8px 0 0; color: var(--text-secondary); line-height: 1.8; }
.method-dimensions { margin: 30px 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.method-dimensions article { padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.method-dimensions span { color: var(--accent-warm); font-size: 11px; letter-spacing: .12em; font-weight: 800; }
.method-dimensions h3 { margin: 9px 0; }
.method-dimensions p { margin: 0; color: var(--text-secondary); font-size: 13px; line-height: 1.7; }
.change-list { padding: 0; margin: 30px 0 0; list-style: none; border-top: 1px solid var(--line); }
.change-list li { padding: 20px 0; display: grid; grid-template-columns: minmax(150px, .8fr) 1.5fr; gap: 24px; border-bottom: 1px solid var(--line); }
.change-list span { color: var(--text-secondary); line-height: 1.7; }
.score-formula { margin: 32px 0; padding: 24px; display: flex; align-items: center; justify-content: space-between; background: var(--surface-strong); border: 1px solid var(--line); border-radius: 18px; }
.score-formula span { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 50%; background: var(--accent-soft); font-family: Georgia, serif; font-size: 20px; }
.score-formula small { display: block; margin-top: -12px; color: var(--text-secondary); font-size: 9px; }
.score-formula i { color: var(--text-secondary); font-style: normal; }
.level-table { margin-top: 30px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.level-table > div { display: grid; grid-template-columns: 1fr 1fr; }
.level-table > div + div { border-top: 1px solid var(--line); }
.level-table b, .level-table span { padding: 15px 18px; font-size: 13px; }
.level-table b { background: var(--surface-strong); }
.level-table span { color: var(--text-secondary); }
.boundary-grid { display: grid; gap: 14px; }
.boundary-grid article { padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
.boundary-grid h3 { margin: 0 0 8px; }
.boundary-grid p { margin: 0; color: var(--text-secondary); line-height: 1.8; }
.references-list { padding-left: 22px; }
.references-list li { margin-bottom: 24px; padding-left: 8px; color: #5f5850; line-height: 1.8; }
.references-list cite { font-weight: 650; }
.references-list a { color: var(--accent-deep); overflow-wrap: anywhere; }
.method-footer { width: min(100% - 40px, 980px); margin: 0 auto; padding: 38px 0 58px; display: flex; justify-content: space-between; color: var(--text-secondary); }
.method-footer a { color: var(--accent-deep); font-weight: 700; text-decoration: none; }
@media (max-width: 760px) {
  .method-hero { padding-top: 30px; }
  .back-link { margin-bottom: 48px; }
  .method-layout { display: block; }
  .method-nav { position: static; padding: 30px 0 0; grid-template-columns: 1fr 1fr; }
  .method-nav p { grid-column: 1 / -1; }
  .method-dimensions { grid-template-columns: 1fr; }
  .change-list li { grid-template-columns: 1fr; gap: 7px; }
  .score-formula { padding: 16px 10px; }
  .score-formula span { width: 42px; height: 42px; }
  .score-formula i { font-size: 11px; }
  .level-table > div { grid-template-columns: 1fr; }
  .level-table span { padding-top: 0; background: var(--surface-strong); }
  .method-footer { align-items: flex-start; flex-direction: column; gap: 8px; }
}