:root {
  --ivory: #f6f1e6;
  --ivory-2: #eee6d7;
  --ivory-3: #e4d8c4;
  --ink: #14110c;
  --ink-2: #2c261c;
  --ink-3: #5c5346;
  --gold: #b08a3e;
  --gold-2: #d4b56a;
  --gold-3: #8c6e32;
  --void: #100e0b;
  --line: rgba(176, 138, 62, 0.38);
  --danger: #6b2a1f;
  --serif-zh: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --sans-zh: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --serif-en: "Cormorant Garamond", "Palatino Linotype", serif;
  --shadow: 0 24px 60px rgba(20, 17, 12, 0.12);
  --max: 1120px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--ivory);
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--ink);
  overflow-x: clip;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(212, 181, 106, 0.16), transparent 55%),
    var(--ivory);
  font-family: var(--sans-zh);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5 { font-family: var(--serif-zh); font-weight: 700; line-height: 1.25; margin: 0; }
p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

::selection {
  background: rgba(176, 138, 62, 0.28);
  color: var(--ink);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}
.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: var(--ink);
  color: var(--ivory);
  padding: 8px 14px;
}

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.kicker {
  font-family: var(--sans-zh);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold-3);
  margin: 0 0 14px;
}

.en,
.pillar-en,
.step-sub,
.section-lead {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--ink-3);
  font-size: 1.02em;
}
.section-lead {
  margin-top: 12px;
  max-width: 740px;
  font-style: normal;
  font-family: var(--sans-zh);
  color: var(--ink-2);
  text-wrap: pretty;
}
.pillar-en {
  margin-top: 4px;
}
.pillar-domain {
  margin-top: 12px;
}
.console-h {
  margin-bottom: 8px;
  letter-spacing: 0.12em;
}
.console-lead {
  margin-bottom: 22px;
  color: var(--ink-3);
}
.clinic-body { max-width: 760px; }
.intake-lead {
  margin: 10px 0 22px;
  color: var(--ink-2);
}
.step-body { margin-top: 14px; }
.step-out { margin-top: 14px; }

.zh-lead {
  font-family: var(--serif-zh);
  font-size: 1.12rem;
  font-weight: 600;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(244, 238, 227, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex: 0 0 auto;
}
.brand img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-text strong {
  font-family: var(--serif-en);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.brand-text span {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold-3);
}

.header-end {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  overflow: hidden;
  flex: 0 0 auto;
}
.lang-btn {
  background: transparent;
  border: 0;
  min-width: 40px;
  min-height: 36px;
  padding: 0 10px;
  cursor: pointer;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-3);
}
.lang-btn.is-on,
.lang-btn[aria-pressed="true"] {
  background: linear-gradient(180deg, #d4b56a, #a6853a);
  color: var(--ink);
}
.lang-btn:hover:not(.is-on):not([aria-pressed="true"]) {
  color: var(--ink);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: auto;
  font-size: 13px;
  letter-spacing: 0.12em;
}
.nav a {
  text-decoration: none;
  color: var(--ink-2);
  white-space: nowrap;
}
.nav a:hover { color: var(--gold-3); }

.nav-cta {
  background: var(--ink);
  color: var(--ivory) !important;
  padding: 10px 16px;
  letter-spacing: 0.14em;
  font-size: 12px;
  text-decoration: none;
}
.nav-cta:hover { background: var(--gold-3); color: var(--ivory) !important; }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--gold-3);
  padding: 8px 12px;
  letter-spacing: 0.16em;
  font-size: 11px;
  cursor: pointer;
  color: var(--ink);
}

.hero {
  position: relative;
  padding: 36px 0 56px;
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 1px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
}
.hero::before { width: min(920px, 92vw); height: min(460px, 46vw); top: -220px; border-bottom: none; }
.hero::after { width: min(720px, 78vw); height: min(360px, 36vw); top: -180px; border-bottom: none; }

.hero-lockup {
  text-align: center;
  position: relative;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.7rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-wrap: balance;
}
.hero h1 .doctrine {
  display: block;
  margin-top: 10px;
  font-size: 0.52em;
  letter-spacing: 0.28em;
  color: var(--gold-3);
  font-weight: 600;
}
html[data-lang="en"] h2,
html[data-lang="en"] .zh-lead,
html[data-lang="en"] .command,
html[data-lang="en"] .intake h3,
html[data-lang="en"] .console-h,
html[data-lang="en"] .preview h3 {
  font-family: var(--serif-en);
}
html[data-lang="en"] .command {
  font-style: italic;
  letter-spacing: 0.03em;
}
.command {
  max-width: 720px;
  margin: 20px auto 0;
  font-family: var(--serif-zh);
  font-size: clamp(1.02rem, 1.7vw, 1.22rem);
  font-weight: 600;
  text-wrap: balance;
}
.hero-h2 {
  max-width: 680px;
  margin: 16px auto 0;
  color: var(--ink-2);
  text-wrap: pretty;
}
.hero-h2 .en { margin-top: 10px; display: block; font-size: 1.05rem; }

.cta-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  border: 0;
  min-height: 52px;
  padding: 0 22px;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 500;
}
.btn-gold {
  background: linear-gradient(180deg, #d4b56a, #a6853a);
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(166, 133, 58, 0.28);
}
.btn-gold:hover { filter: brightness(1.05); }
.btn-ink {
  background: var(--ink);
  color: var(--ivory);
}
.link-quiet {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--gold-3);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
}
.link-quiet:hover { color: var(--ink); }

section { padding: 88px 0; scroll-margin-top: 84px; }
.section-head { max-width: 760px; margin-bottom: 40px; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  letter-spacing: 0.08em;
}
.section-head .en { margin-top: 8px; display: block; }

/* TRIAGE */
.triage {
  background: linear-gradient(180deg, rgba(20, 17, 12, 0.03), transparent 40%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.symptom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.symptom {
  text-align: left;
  background: #fffdf8;
  border: 1px solid var(--line);
  padding: 22px 20px 20px;
  cursor: pointer;
  min-height: 240px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.symptom:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.symptom[aria-pressed="true"] {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold), var(--shadow);
  background: #fffaf0;
}
.symptom .idx {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold-3);
}
.symptom h3 {
  margin: 10px 0 6px;
  font-size: 1.45rem;
  letter-spacing: 0.12em;
}
.symptom .en-name {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--gold-3);
  margin-bottom: 12px;
}
.symptom p { font-size: 0.92rem; color: var(--ink-2); }

.preview, .console, .memo {
  margin-top: 28px;
  background: #fffdf8;
  border: 1px solid var(--line);
  padding: 28px;
  box-shadow: var(--shadow);
}
.preview[hidden], .console[hidden], .memo[hidden], .intake-success[hidden] { display: none !important; }

.preview-label {
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--gold-3);
  margin-bottom: 8px;
}
.preview h3 { font-size: 1.35rem; letter-spacing: 0.1em; margin-bottom: 8px; }

.console-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field.span-2 { grid-column: 1 / -1; }
.field label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-2);
}
.field .hint {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0;
}
.field input,
.field select,
.field textarea {
  background: var(--ivory);
  border: 1px solid var(--line);
  padding: 12px 12px;
  min-height: 48px;
}
.field textarea { min-height: 140px; resize: vertical; line-height: 1.6; }
.console-actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.pulse {
  display: none;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  color: var(--gold-3);
  letter-spacing: 0.18em;
  font-size: 12px;
}
.pulse.is-on { display: flex; }
.ecg {
  width: 160px;
  height: 28px;
}
.ecg path {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-dasharray: 240;
  animation: pulse 1.4s linear infinite;
}
@keyframes pulse {
  from { stroke-dashoffset: 240; }
  to { stroke-dashoffset: 0; }
}

.memo {
  scroll-margin-top: 88px;
  background:
    linear-gradient(180deg, rgba(176, 138, 62, 0.08), transparent 120px),
    #fbf7ee;
}
.memo-head h3 {
  font-size: 1.8rem;
  letter-spacing: 0.16em;
  margin: 6px 0;
}
.memo-stamp {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--danger);
}
.memo-en { font-family: var(--serif-en); font-style: italic; color: var(--ink-3); }
.memo-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.memo-meta dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-3);
}
.memo-meta dd { margin: 4px 0 0; font-family: var(--serif-zh); font-weight: 600; }
.memo-block { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.memo-block h4 {
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  color: var(--gold-3);
}
.memo-block p + p { margin-top: 10px; }
.memo-lesion { font-family: var(--serif-zh); font-size: 1.2rem; font-weight: 700; }
.memo-lesion-en { font-family: var(--serif-en); font-style: italic; color: var(--gold-3); }
.memo-quote {
  padding: 12px 14px;
  border-left: 2px solid var(--gold);
  background: rgba(176, 138, 62, 0.08);
  margin: 14px 0 !important;
}
.memo-fail-label {
  margin-top: 18px !important;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--danger);
}
.memo-pillar { margin-top: 18px; }
.memo-pillar h5 {
  font-size: 1rem;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.memo-phases { list-style: none; padding: 0; margin: 0; counter-reset: phase; }
.memo-phases li {
  margin-top: 18px;
  padding-left: 0;
}
.memo-phases strong { display: block; letter-spacing: 0.08em; }
.phase-window {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-3);
  margin: 4px 0 8px;
}
.memo-directive .btn { margin-top: 22px; }
.memo-cta-copy {
  margin-top: 18px !important;
  font-family: var(--serif-zh);
  font-weight: 600;
}

.error {
  color: var(--danger);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* PILLARS */
.pillar {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
}
.pillar-index {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gold-3);
}
.pillar h3 {
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  letter-spacing: 0.16em;
  margin: 8px 0 6px;
}
.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.pair article {
  background: #fffdf8;
  border: 1px solid var(--line);
  padding: 20px;
}
.pair h4 {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold-3);
  margin-bottom: 10px;
}
.specs {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.specs li {
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
}
.includes li span {
  display: block;
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-3);
}

/* PROTOCOL */
.protocol {
  background: var(--void);
  color: var(--ivory);
}
.protocol .kicker,
.protocol .step-sub { color: var(--gold-2); }
.protocol .section-lead { color: rgba(244, 238, 227, 0.72); }
html[data-lang="en"] .protocol .section-lead {
  font-family: var(--serif-en);
  font-style: italic;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.step {
  border: 1px solid rgba(212, 181, 106, 0.28);
  padding: 24px 22px;
  min-height: 100%;
}
.step .n {
  font-family: var(--serif-en);
  font-size: 1.6rem;
  color: var(--gold-2);
}
.step h3 {
  margin: 8px 0 10px;
  letter-spacing: 0.14em;
  font-size: 1.45rem;
}

/* CLINIC */
.clinic {
  background:
    radial-gradient(800px 400px at 80% 0%, rgba(176, 138, 62, 0.12), transparent 50%),
    var(--ivory);
}
.includes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.includes li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-family: var(--serif-zh);
  font-weight: 600;
}

.intake {
  margin-top: 48px;
  border: 1px solid var(--line);
  background: #fffdf8;
  padding: 32px;
}
.intake h3 { font-size: 1.6rem; letter-spacing: 0.14em; }
.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--ink-2);
}
.check input { margin-top: 4px; }

.intake-success {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--gold);
  background: rgba(176, 138, 62, 0.08);
}

.site-footer {
  background: var(--void);
  color: rgba(244, 238, 227, 0.72);
  padding: 48px 0 36px;
  font-size: 13px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  align-items: end;
}
.site-footer strong {
  display: block;
  color: var(--ivory);
  font-family: var(--serif-en);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.site-footer .doctrine {
  color: var(--gold-2);
  letter-spacing: 0.22em;
  margin-top: 6px;
}

@media (max-width: 1100px) {
  .symptom-grid,
  .steps,
  .memo-meta { grid-template-columns: 1fr 1fr; }
  .pillar { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 900px) {
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  .header-end { margin-left: auto; }
  .nav { margin-left: 0; }
  .menu-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    background: rgba(244, 238, 227, 0.98);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 22px;
    gap: 14px;
  }
  .nav.is-open { display: flex; }
  .symptom-grid,
  .pair,
  .steps,
  .console-grid,
  .includes,
  .memo-meta { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 64px; }
  section { padding: 64px 0; }
  .header-inner { min-height: 64px; }
}

@media (max-width: 640px) {
  .cta-row { flex-direction: column; gap: 16px; }
  .preview, .console, .memo, .intake { padding: 20px; }
  .brand-text { display: none; }
  .kicker { letter-spacing: 0.14em; font-size: 10px; }
  .hero { padding: 28px 0 40px; }
  .hero-logo { width: min(280px, 86vw); }
  .hero h1 { letter-spacing: 0.08em; }
  .hero-h2, .command, .section-lead { overflow-wrap: anywhere; }
  .btn { width: min(100%, 420px); }
  .link-quiet { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ecg path { animation: none; }
  .symptom { transition: none; }
}