/* ==========================================================================
   StayGnalry — design tokens
   ========================================================================== */
:root {
  --ink: #22262B;
  --ink-soft: #585C60;
  --paper: #E7E5DF;
  --surface: #F5F4F0;
  --surface-raised: #FFFFFF;
  --moss: #5B6B54;
  --moss-deep: #414D3D;
  --clay: #A85D3E;
  --line: #CFCBC0;
  --line-strong: #B9B5A9;

  --display: 'Newsreader', Georgia, serif;
  --body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;

  --max: 1120px;
  --pad: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

a { color: inherit; }
img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

/* ---- eyebrow / mono labels ---- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--moss-deep);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow .stop-code {
  background: var(--moss);
  color: var(--surface);
  padding: 2px 7px;
  border-radius: 3px;
  font-size: 11px;
}

/* ---- top nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(231, 229, 223, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--display);
  font-style: italic;
  font-weight: 500;
  font-size: 21px;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.brand strong { font-style: normal; font-weight: 600; }

.nav-links {
  display: flex;
  gap: clamp(10px, 2vw, 26px);
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--ink); border-color: var(--moss); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 12px;
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    background: var(--surface);
    flex-direction: column;
    padding: 16px var(--pad) 24px;
    border-bottom: 1px solid var(--line);
    display: none;
    gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 10px 0; }
  .nav-toggle { display: inline-block; }
}

/* ---- metro rail (signature element) ---- */
.rail {
  position: fixed;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.rail::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line-strong);
  z-index: -1;
}
.rail-stop {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  position: relative;
}
.rail-stop .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--surface-raised);
  border: 1.5px solid var(--line-strong);
  transition: all .2s ease;
}
.rail-stop.active .dot {
  background: var(--moss);
  border-color: var(--moss);
  transform: scale(1.25);
}
.rail-stop .tip {
  position: absolute;
  left: 22px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  background: var(--ink);
  color: var(--surface);
  padding: 3px 7px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-4px);
  transition: all .15s ease;
}
.rail-stop:hover .tip,
.rail-stop:focus-visible .tip { opacity: 1; transform: translateX(0); }

@media (max-width: 1180px) {
  .rail { display: none; }
}

/* ---- hero ---- */
.hero {
  padding-top: clamp(56px, 10vw, 120px);
  padding-bottom: clamp(48px, 8vw, 96px);
  border-bottom: 1px solid var(--line);
}
.hero-kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.4rem, 5.4vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 26px;
  max-width: 15ch;
}
.hero h1 em {
  color: var(--moss-deep);
  font-style: italic;
}
.hero p.lede {
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 28px;
}
.hero-message {
  border-left: 2px solid var(--moss);
  max-width: 54ch;
  padding-left: clamp(18px, 3vw, 28px);
}
.hero-message p {
  color: var(--ink-soft);
  margin: 0 0 20px;
}
.hero-welcome {
  color: var(--ink);
  font-family: var(--display);
  font-size: 1.25rem;
  margin: 28px 0 0;
}
.hero-message [lang="zh-CN"] { color: var(--moss-deep); }
.hero-welcome [lang="zh-CN"] { color: var(--moss-deep); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--surface); }
.btn-primary:hover { background: var(--moss-deep); border-color: var(--moss-deep); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--surface); }

/* ---- generic section scaffolding ---- */
section.block {
  padding-top: clamp(48px, 7vw, 84px);
  padding-bottom: clamp(48px, 7vw, 84px);
  border-bottom: 1px solid var(--line);
}
.block-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.block-head h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  margin: 10px 0 0;
  max-width: 22ch;
}
.block-head .desc {
  color: var(--ink-soft);
  max-width: 40ch;
  font-size: 0.98rem;
}

.card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 900px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .card-grid { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.card .tag {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--moss-deep);
}
.card h3 {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 500;
  margin: 0;
}
.card p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }
.card .read {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  align-self: flex-start;
}
.placeholder-note {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.7;
}

/* ---- reader ---- */
.reader-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: clamp(20px, 4vw, 40px);
}
.level-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.level-tab {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
  color: var(--ink-soft);
}
.level-tab.active { background: var(--moss); border-color: var(--moss); color: var(--surface); }

.passage-cn {
  font-family: var(--display);
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  line-height: 1.9;
  margin: 0 0 14px;
  white-space: pre-line;
}
.passage-pinyin {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0 0 18px;
  font-style: italic;
}
.passage-en {
  border-top: 1px dashed var(--line-strong);
  padding-top: 16px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.reader-instruction {
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.reader-lines {
  display: grid;
  gap: 10px;
}
.reader-placeholder {
  color: var(--ink-soft);
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  line-height: 1.45;
  padding: 24px 0;
}
.reader-line {
  appearance: none;
  width: 100%;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  padding: 14px 16px;
  text-align: left;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.reader-line:hover,
.reader-line:focus-visible,
.reader-line.is-focused {
  background: var(--surface-raised);
  border-color: var(--moss);
  outline: none;
}
.reader-line:hover { transform: translateY(-1px); }
.reader-play-label {
  align-items: center;
  color: var(--clay);
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.72rem;
  gap: 6px;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
  text-transform: uppercase;
}
.reader-play-label::before {
  align-items: center;
  background: var(--clay);
  border-radius: 50%;
  color: var(--surface);
  content: "▶";
  display: inline-flex;
  font-size: 0.62em;
  height: 20px;
  justify-content: center;
  width: 20px;
}
.reader-line.is-playing .reader-play-label::before { content: "Ⅱ"; font-size: 0.8em; }
.reader-line.is-audio-pending .reader-play-label { color: var(--ink-soft); }
.reader-line.is-audio-pending .reader-play-label::before {
  background: var(--line-strong);
  content: "·";
  font-size: 1.35em;
}
.reader-hanzi {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  line-height: 1.4;
}
.hanzi-unit {
  display: inline-grid;
  grid-template-rows: auto auto;
  justify-items: center;
  min-width: 1.05em;
  vertical-align: bottom;
}
.hanzi-pinyin {
  color: var(--moss-deep);
  font-family: var(--mono);
  font-size: 0.52em;
  line-height: 1.1;
  margin-bottom: 3px;
}
.hanzi-character { line-height: 1; }
.reader-punctuation { display: inline-block; }
.reader-translation {
  display: block;
  border-top: 1px dashed var(--line-strong);
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-top: 10px;
  padding-top: 10px;
}

.audio-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.audio-row audio { flex: 1; min-width: 0; }
.audio-badge {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--clay);
  border: 1px solid var(--clay);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

/* ---- consulting / interpreting split ---- */
.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 780px) { .split { grid-template-columns: 1fr; } }
.split .copy p { color: var(--ink-soft); }
.about-copy { max-width: 72ch; }
.about-copy p { color: var(--ink-soft); }
.about-chinese {
  border-left: 2px solid var(--moss);
  margin-top: 38px;
  padding-left: clamp(18px, 3vw, 30px);
}
.about-chinese p { color: var(--ink); }
.info-list { list-style: none; margin: 22px 0 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.info-list li {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
}
.info-list .mark {
  font-family: var(--mono);
  color: var(--moss-deep);
  flex-shrink: 0;
}
.service-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
}
.service-panel h3 {
  font-family: var(--display);
  font-size: 1.3rem;
  margin: 0 0 6px;
}
.service-panel .price {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}
.service-panel ul { margin: 0 0 20px; padding-left: 18px; color: var(--ink-soft); font-size: 0.92rem; }
.service-panel li { margin-bottom: 6px; }

/* ---- subscribe ---- */
.subscribe {
  background: var(--ink);
  color: var(--surface);
  border-radius: 18px;
  padding: clamp(28px, 5vw, 56px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.subscribe h2 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 8px 0 8px;
  max-width: 18ch;
}
.subscribe p { color: #C7C4BC; margin: 0; max-width: 38ch; }
.subscribe-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.subscribe-form input[type="email"] {
  background: #2E3238;
  border: 1px solid #454B52;
  border-radius: 999px;
  padding: 12px 18px;
  color: var(--surface);
  font-family: var(--body);
  font-size: 14px;
  min-width: 240px;
}
.subscribe-form input::placeholder { color: #9A9DA2; }
.subscribe-form button {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--moss);
  color: var(--surface);
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  cursor: pointer;
}
.subscribe-form button:hover { background: #6d7f65; }
.form-note { font-family: var(--mono); font-size: 10.5px; color: #8C8F94; margin-top: 8px; width: 100%; }

/* ---- footer ---- */
footer.site-footer {
  padding: 40px var(--pad) 60px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-inner .brand { font-size: 18px; }
.footer-links {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}
.footer-links a { text-decoration: none; color: var(--ink-soft); }
.footer-links a:hover { color: var(--ink); }
.copyright {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  margin-top: 20px;
}

/* ---- reveal-on-scroll ---- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s ease, transform .5s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }