:root {
  --color-brand-900: #102f2f;
  --color-brand-800: #163a3a;
  --color-brand-700: #1d4b4a;
  --color-brand-600: #27615f;
  --color-accent: #c99445;
  --color-accent-soft: #f5ead9;
  --color-ink: #1d2929;
  --color-muted: #5f6d6d;
  --color-line: #dbe2e1;
  --color-surface: #ffffff;
  --color-surface-soft: #f5f7f6;
  --color-bg: #eef2f1;
  --shadow-sm: 0 8px 24px rgba(16, 47, 47, .08);
  --shadow-md: 0 18px 45px rgba(16, 47, 47, .12);
  --radius-sm: .625rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --container: 1180px;
  --header-height: 76px;
  --transition: 180ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-surface);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid rgba(201, 148, 69, .55); outline-offset: 3px; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; z-index: 9999; top: .75rem; left: .75rem;
  padding: .75rem 1rem; background: var(--color-brand-900); color: #fff;
  border-radius: var(--radius-sm); transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.container { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.section { padding: clamp(3.5rem, 7vw, 7rem) 0; }
.section--soft { background: var(--color-surface-soft); }
.section--dark { background: var(--color-brand-900); color: #fff; }
.section__head { max-width: 760px; margin-bottom: 2rem; }
.eyebrow { color: var(--color-brand-600); font-weight: 700; letter-spacing: .08em; font-size: .85rem; }
.section--dark .eyebrow { color: #e5c796; }
h1, h2, h3 { line-height: 1.25; margin-top: 0; color: var(--color-brand-900); }
h1 { font-size: clamp(2.35rem, 6vw, 4.75rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: #fff; }
p { margin: 0 0 1rem; }
.lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--color-muted); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 46px; padding: .72rem 1.15rem; border-radius: 999px;
  border: 1px solid transparent; font-weight: 700; transition: transform var(--transition), background var(--transition), border-color var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--color-brand-800); color: #fff; }
.btn--primary:hover { background: var(--color-brand-700); }
.btn--ghost { border-color: var(--color-line); background: #fff; color: var(--color-brand-900); }
.btn--ghost:hover { border-color: var(--color-brand-600); }
.btn--light { background: #fff; color: var(--color-brand-900); }
.btn--sm { min-height: 40px; padding: .55rem .9rem; font-size: .92rem; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.card {
  padding: 1.5rem; border: 1px solid var(--color-line); border-radius: var(--radius-md);
  background: #fff; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.site-header {
  position: sticky; z-index: 1000; top: 0; height: var(--header-height);
  background: rgba(255,255,255,.94); border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px); transition: box-shadow var(--transition), border-color var(--transition);
}
.site-header.is-scrolled { border-color: var(--color-line); box-shadow: 0 8px 30px rgba(16,47,47,.06); }
.site-header__inner { min-height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; flex: 0 0 auto; }
.brand__mark {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px;
  background: var(--color-brand-800); color: #fff; font-weight: 800;
}
.brand__text { display: grid; line-height: 1.2; }
.brand__text strong { font-size: 1rem; }
.brand__text small { margin-top: .2rem; color: var(--color-muted); font-size: .75rem; }
.site-nav { display: flex; align-items: center; gap: .1rem; }
.site-nav__link { padding: .65rem .7rem; border-radius: .5rem; font-size: .91rem; color: #334242; }
.site-nav__link:hover, .site-nav__link.is-active { background: var(--color-surface-soft); color: var(--color-brand-800); }
.site-nav__actions { display: flex; gap: .5rem; margin-left: .45rem; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; border-radius: 10px; background: var(--color-surface-soft); padding: 10px; }
.nav-toggle span:not(.sr-only) { display: block; width: 100%; height: 2px; margin: 5px 0; background: var(--color-brand-900); }

.hero { overflow: hidden; padding: clamp(4.5rem, 9vw, 8rem) 0; background: linear-gradient(145deg,#f8faf9 0%,#eef4f2 55%,#f8f4ec 100%); }
.hero__grid { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(300px,.8fr); align-items: center; gap: clamp(2rem, 6vw, 5rem); }
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

.site-footer { padding-top: 4rem; background: var(--color-brand-900); color: rgba(255,255,255,.8); }
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer__grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 2.5rem; }
.site-footer__brand p { max-width: 34rem; }
.site-footer__cta { margin-top: 1.25rem; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li + li { margin-top: .55rem; }
.footer-links a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.site-footer__note { margin-top: 1rem; font-size: .85rem; color: rgba(255,255,255,.55); }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; padding: 1.25rem 0; border-top: 1px solid rgba(255,255,255,.14); font-size: .82rem; color: rgba(255,255,255,.6); }
.site-footer__bottom p { margin: 0; }

[data-accordion-trigger] { width: 100%; text-align: left; }
[data-accordion-panel][hidden] { display: none; }

@media (max-width: 1080px) {
  .site-nav__link { padding-inline: .48rem; font-size: .86rem; }
  .site-nav__actions .btn--ghost { display: none; }
}

@media (max-width: 900px) {
  :root { --header-height: 68px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; left: 1rem; right: 1rem; top: calc(100% + .5rem);
    display: none; align-items: stretch; padding: .75rem;
    background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-md); box-shadow: var(--shadow-md);
  }
  .site-nav.is-open { display: grid; }
  .site-nav__link { padding: .8rem 1rem; }
  .site-nav__actions { margin: .5rem 0 0; display: grid; grid-template-columns: 1fr 1fr; }
  .site-nav__actions .btn--ghost { display: inline-flex; }
  .hero__grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 1.25rem), var(--container)); }
  .brand__text small { display: none; }
  .hero { padding-top: 3.5rem; }
  .hero__actions { display: grid; }
  .hero__actions .btn { width: 100%; }
  .card-grid { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .site-footer__bottom { display: grid; }
  .site-nav__actions { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}


/* Consultation form */
.container--narrow { max-width: 880px; }
.consult-form { display: grid; gap: 1.5rem; }
.form-progress {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .75rem;
  margin-bottom: 2rem;
}
.form-progress__item {
  padding: .85rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
  color: var(--color-muted);
  font-weight: 700;
  text-align: center;
}
.form-progress__item.is-active {
  background: var(--color-brand-800);
  color: #fff;
  border-color: var(--color-brand-800);
}
.form-progress__item.is-complete {
  border-color: var(--color-brand-600);
  color: var(--color-brand-800);
}
.form-step {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.form-grid {
  display: grid;
  gap: 1rem;
}
.form-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-field { display: grid; gap: .45rem; margin-bottom: 1rem; }
.form-field label { font-weight: 700; color: var(--color-brand-900); }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fff;
  padding: .8rem .9rem;
  color: var(--color-ink);
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-brand-600);
  box-shadow: 0 0 0 3px rgba(39, 97, 95, .12);
  outline: none;
}
.option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .85rem;
  margin: 1.25rem 0 1.5rem;
}
.option-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
}
.option-card:has(input:checked) {
  border-color: var(--color-brand-600);
  background: var(--color-surface-soft);
  box-shadow: 0 0 0 2px rgba(39, 97, 95, .08);
}
.option-card input { accent-color: var(--color-brand-700); }
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  margin: 1rem 0 1.5rem;
  color: var(--color-muted);
}
.checkbox-row input { margin-top: .3rem; accent-color: var(--color-brand-700); }
.form-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
  flex-wrap: wrap;
  margin-top: 1.25rem;
}

@media (max-width: 700px) {
  .form-progress { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid--2,
  .option-grid { grid-template-columns: 1fr; }
  .form-actions { justify-content: stretch; }
  .form-actions .button { flex: 1 1 100%; }
}