:root {
  --color-black: #3d3935;
  --color-pink: #ceb4a9;
  --color-lightgrey: #dad9d6;
  --color-darkgrey: #686869;
  --color-white: #ffffff;
  --color-gold: #bfb592;
  --color-success-bg: #eef4ef;
  --color-success-text: #23422b;
  --color-error-bg: #f8ece8;
  --color-error-text: #7a4337;
  --shadow-soft: 0 14px 40px rgba(61, 57, 53, 0.08);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  /* 間距變數：手機版加大避免壓線 */
  --tap-min: 44px;
  --space-block-mobile: 1.25rem;
  --space-inline-mobile: 1.25rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 16px;
  color: var(--color-black);
  line-height: 1.6;
  background:
    linear-gradient(180deg, rgba(218, 217, 214, 0.82) 0%, rgba(255, 255, 255, 0.96) 100%);
  min-height: 100vh;
}

a {
  color: inherit;
}

.site-shell {
  width: min(1120px, calc(100% - 2 * var(--space-inline-mobile, 16px)));
  margin: 0 auto;
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
}

.site-header {
  padding: 20px 0;
  background: var(--color-black);
}

.site-header .site-shell {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: transparent;
}

.brand-logo:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 4px;
}

.brand-logo img {
  display: block;
  height: 40px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
}

.brand-logo-emblem {
  display: block;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-darkgrey);
}

.brand-mark::before {
  content: "";
  width: 42px;
  height: 1px;
  background: var(--color-gold);
}

.hero,
.quiz-card,
.panel,
.result-panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(104, 104, 105, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.hero {
  margin-top: 24px;
  padding: 28px;
}

.hero h1,
.page-title {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 2.85rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.page-title-en {
  margin-top: 0.35em;
  font-size: 0.5em;
  font-weight: 500;
  line-height: 1.35;
  color: var(--color-darkgrey);
  letter-spacing: 0.01em;
}

.hero p,
.page-intro,
.subtle-text,
.helper-text {
  color: var(--color-darkgrey);
  line-height: 1.7;
}

.text-en {
  display: block;
  margin-top: 0.3em;
  font-size: 0.88em;
  color: var(--color-darkgrey);
  font-weight: 400;
}

.eyebrow .text-en,
.quiz-card h2 .text-en,
.meta-chip .text-en {
  margin-top: 0.2em;
}

.btn .text-en {
  display: block;
  margin-top: 0.35em;
  font-size: 0.85em;
  font-weight: 500;
}

.hero-grid,
.cards-grid,
.quiz-layout,
.meta-grid {
  display: grid;
  gap: 20px;
}

.cards-grid {
  margin-top: 24px;
  margin-bottom: 24px;
}

.quiz-card {
  padding: 22px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.quiz-card:hover,
.quiz-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(191, 181, 146, 0.5);
  box-shadow: 0 18px 44px rgba(61, 57, 53, 0.12);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--color-darkgrey);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quiz-card h2,
.section-title {
  margin: 0 0 10px;
  font-size: 1.3rem;
}

.meta-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--color-lightgrey);
  color: var(--color-black);
  font-size: 0.92rem;
}

.meta-chip--accent {
  background: rgba(206, 180, 169, 0.24);
}

.meta-chip a {
  text-decoration: none;
  color: inherit;
}

.quiz-layout {
  margin-top: 1.25rem;
  padding-bottom: 48px;
}

.quiz-sidebar {
  display: grid;
  gap: 20px;
}

.panel {
  padding: 24px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.required-mark {
  font-weight: 400;
  color: var(--color-darkgrey);
  font-size: 0.9em;
}

.field-hint {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--color-darkgrey);
}

.field-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid rgba(104, 104, 105, 0.3);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-black);
  font: inherit;
}

.field-input:focus,
.choice-option input:focus-visible + span {
  outline: 2px solid rgba(206, 180, 169, 0.85);
  outline-offset: 2px;
}

.field-input.is-error {
  border-color: #dc2626;
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.2);
}

.question-card.is-error {
  border-color: #dc2626;
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.15);
}

.question-list {
  display: grid;
  gap: 18px;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.question-card {
  padding: 20px;
  border: 1px solid rgba(104, 104, 105, 0.12);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(218, 217, 214, 0.2) 100%);
}

.question-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: var(--color-black);
  color: var(--color-white);
  font-weight: 700;
}

.question-title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  line-height: 1.55;
}

.question-title-en {
  margin: 0 0 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-darkgrey);
  font-weight: 400;
}

.option-en {
  display: block;
  margin-top: 4px;
  font-size: 0.88em;
  color: var(--color-darkgrey);
  font-weight: 400;
}

.choice-group {
  display: grid;
  gap: 10px;
}

.choice-option {
  position: relative;
  cursor: pointer;
}

.choice-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.choice-option span {
  display: block;
  padding: 14px 16px;
  border: 1px solid rgba(104, 104, 105, 0.18);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  line-height: 1.6;
  min-height: var(--tap-min);
  box-sizing: border-box;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.choice-option:hover span {
  border-color: rgba(206, 180, 169, 0.5);
  background: rgba(206, 180, 169, 0.08);
}

.choice-option input:checked + span {
  border-color: var(--color-pink);
  background: rgba(206, 180, 169, 0.18);
  transform: translateY(-1px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: var(--space-block-mobile, 1.5rem);
}

.btn {
  min-height: var(--tap-min);
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  line-height: 1.4;
  transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(61, 57, 53, 0.12);
}

.btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(61, 57, 53, 0.12);
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

.btn:disabled {
  cursor: wait;
  opacity: 0.7;
}

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  border-color: rgba(104, 104, 105, 0.26);
  color: var(--color-black);
}

.result-panel {
  display: none;
  padding: 24px;
}

.result-panel.is-visible {
  display: block;
}

.result-panel.is-success {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.result-panel.is-error {
  background: var(--color-error-bg);
  color: var(--color-error-text);
}

.result-title {
  margin: 0 0 8px;
  font-size: 1.12rem;
}

.result-title-en {
  font-size: 0.85em;
  font-weight: 500;
  opacity: 0.9;
}

.result-body-en {
  margin-top: 6px;
  font-size: 0.9em;
  opacity: 0.95;
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.result-panel .meta-chip {
  background: rgba(255, 255, 255, 0.55);
}

.meta-chip .text-en {
  display: inline;
  margin-top: 0;
  margin-left: 0.3em;
}

.footer-note {
  padding: 18px 0 32px;
  color: var(--color-darkgrey);
  font-size: 0.95rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

/* 手機版：加大內距與按鈕/文字間距，避免壓線、符合觸控 44px */
@media (max-width: 599px) {
  :root {
    --space-inline-mobile: 1.25rem;
    --space-block-mobile: 1.5rem;
  }

  .site-shell {
    width: min(100%, calc(100vw - 2 * var(--space-inline-mobile)));
  }

  .brand-logo .brand-logo-emblem {
    height: 44px;
  }

  .hero {
    padding: 24px 20px 28px;
  }

  .hero h1,
  .page-title {
    padding-right: 0;
  }

  .page-intro {
    margin-bottom: 0.25em;
  }

  .meta-chip-row {
    margin-top: 16px;
    gap: 10px;
  }

  .meta-chip {
    min-height: 40px;
    padding: 0 14px;
    font-size: 0.9rem;
  }

  .panel {
    padding: 20px 18px 24px;
  }

  .quiz-card {
    padding: 20px 18px 24px;
  }

  .cards-grid {
    gap: 16px;
    margin-top: 20px;
    margin-bottom: 20px;
  }

  .field-label {
    margin-bottom: 10px;
  }

  .field-input {
    min-height: var(--tap-min);
    padding: 12px 14px;
  }

  .question-card {
    padding: 18px 16px 20px;
  }

  .question-index {
    margin-bottom: 12px;
  }

  .question-title {
    margin-bottom: 8px;
  }

  .question-title-en {
    margin-bottom: 12px;
  }

  .choice-option span {
    padding: 14px 18px;
  }

  .choice-group {
    gap: 12px;
  }

  .actions {
    gap: 14px;
    margin-top: 1.75rem;
  }

  .btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 24px;
    min-height: 52px;
    width: 100%;
    text-align: center;
  }

  .btn .text-en {
    margin-top: 0.4em;
  }

  .footer-note {
    padding: 20px 0 28px;
  }

  .footer-brand {
    gap: 12px;
    flex-wrap: wrap;
  }

  .quiz-layout {
    margin-top: 1rem;
    padding-bottom: 2rem;
  }
}

@media (min-width: 700px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .brand-logo img {
    height: 48px;
  }

  .hero-grid,
  .quiz-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .site-header {
    padding-top: 36px;
  }

  .hero {
    padding: 40px;
  }

  .quiz-layout {
    grid-template-columns: minmax(0, 0.72fr) minmax(280px, 0.28fr);
    align-items: start;
  }

  .quiz-sidebar {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}