:root {
  --bg: #f7f6f3;
  --surface: #fbfbfa;
  --ink: #111111;
  --muted: #787774;
  --line: #eaeaea;
  --radius: 9px;
  --font: "DM Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; }
a { color: var(--ink); text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }
:where(a, button):focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 5px;
}
.wrap { width: min(1120px, calc(100% - 4rem)); margin-inline: auto; }

.site-header { position: relative; z-index: 1; background: var(--bg); }
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: 1.5rem;
}
.logo {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  text-decoration: none;
  white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a {
  color: var(--muted);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 180ms ease;
}
.nav-links a:hover { color: var(--ink); }
.badge { color: var(--muted); font-size: 0.75rem; white-space: nowrap; }
.lang-switch { display: inline-flex; gap: 0.125rem; }
.lang-btn {
  min-width: 44px;
  min-height: 44px;
  padding: 0.4rem 0.5rem;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}
.lang-btn:hover { background: var(--line); color: var(--ink); }
.lang-btn.is-active { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 0.35em; }

.hero { padding: 6rem 0 7rem; }
.hero-grid { display: block; }
.hero-visual { margin-top: 2.5rem; }
.hero-art { margin: 0 0 1.5rem; border-radius: 12px; overflow: hidden; }
.hero-art img { display: block; width: 100%; height: auto; }

.hero h1 {
  margin: 0 0 1.75rem;
  max-width: 14ch;
  font-family: "Instrument Serif", "Songti SC", "Noto Serif CJK SC", serif;
  font-size: clamp(2.75rem, 5.6vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.05;
  text-wrap: balance;
}
.hero-summary { margin: 0 0 1rem; font-size: 0.95rem; font-weight: 500; }
.lead { margin: 0 0 1.5rem; max-width: 36rem; color: var(--muted); font-size: 1rem; text-wrap: pretty; }
.meta-row { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-bottom: 2rem; }
.chip { color: var(--muted); font-size: 0.8125rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; align-items: center; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.75rem 1.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, transform 120ms ease;
}
.btn-primary, .btn-pay { background: var(--ink); color: #ffffff; }
.btn-primary:hover, .btn-pay:hover { background: #333333; text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn-ghost { padding-inline: 0; color: var(--muted); }
.btn-ghost:hover { color: var(--ink); text-decoration: underline; }
.btn-pay { width: 100%; margin-top: 1.5rem; }

.sample-quote {
  margin: 4rem 0 0;
  max-width: 33rem;
  border-left: 4px solid var(--ink);
  padding: 0.125rem 0 0.125rem 1.5rem;
}
.sample-quote-label { margin-bottom: 1rem; color: var(--muted); font-size: 0.8125rem; }
.sample-quote-text { margin: 0 0 1.25rem; font-size: 1.0625rem; line-height: 1.65; text-wrap: pretty; }
.sample-quote-link { display: inline-flex; flex-direction: column; gap: 0.375rem; font-size: 0.8125rem; text-decoration: none; }
#sample-url-text { color: var(--muted); overflow-wrap: anywhere; }
.sample-quote-link [data-i18n] { text-decoration: underline; text-underline-offset: 0.25em; }
.sample-quote-link:hover [data-i18n] { text-decoration-thickness: 2px; }

.pricing { padding: 0 0 7rem; }
h2 { font-size: 1.75rem; font-weight: 600; letter-spacing: -0.035em; line-height: 1.2; text-wrap: balance; }
.section-title { margin: 0 0 1rem; }
.section-sub { margin: 0 0 2.5rem; max-width: 65ch; color: var(--muted); font-size: 0.9375rem; text-wrap: pretty; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.card-mini {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  scroll-margin-top: 2rem;
  transition: background 180ms ease, transform 120ms ease;
}
.card-mini:hover { background: #ffffff; }
.card-mini:active { transform: scale(0.98); }
.card-mini.featured { border-left: 3px solid var(--ink); padding-left: calc(1.5rem - 2px); }
.card-tag { color: var(--muted); font-size: 0.75rem; font-weight: 500; }
.card-mini .card-tag { margin-bottom: 0.625rem; }
.card-mini.featured .card-tag { color: var(--ink); }
.card-mini h3 { min-height: 2.6em; margin: 0; font-size: 1rem; font-weight: 600; letter-spacing: -0.02em; line-height: 1.3; text-wrap: pretty; }
.price { font-variant-numeric: tabular-nums lining-nums; }
.card-mini .price { margin: 0.875rem 0 1rem; font-size: 2.75rem; font-weight: 600; letter-spacing: -0.055em; line-height: 1.1; }
.price em { font-style: normal; }
.card-mini .one-liner { flex: 1; margin: 0; color: var(--muted); font-size: 0.875rem; line-height: 1.6; text-wrap: pretty; }
.card-mini .more { margin-top: 1.5rem; font-size: 0.8125rem; font-weight: 500; }
.card-mini:hover .more { text-decoration: underline; text-underline-offset: 0.25em; }
.card-mini.inquire .price { display: flex; align-items: center; min-height: 1.5125em; font-size: 2rem; letter-spacing: -0.035em; }

.panel-section { padding-bottom: 7rem; }
.panel h2 { margin: 0 0 2rem; }
.steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 3rem; margin: 0; padding-left: 1.25rem; }
.steps li { padding-left: 0.5rem; }
.steps li::marker { color: var(--muted); font-size: 0.875rem; }
.steps strong { display: block; margin-bottom: 0.625rem; font-size: 1rem; font-weight: 600; }
.steps span { display: block; max-width: 48ch; color: var(--muted); font-size: 0.9375rem; }
.panel .done-title { margin-top: 4rem; margin-bottom: 1.5rem; }
.done-list { margin: 0; padding-left: 1.125rem; color: var(--muted); font-size: 0.9375rem; }
.done-list li { margin-block: 0.625rem; padding-left: 0.25rem; }
#payment .panel { display: grid; grid-template-columns: 1fr 1fr; gap: 0 3rem; }
#payment h2 { grid-column: 1 / -1; }
#payment p { margin: 0; max-width: 55ch; color: var(--muted); font-size: 0.9375rem; text-wrap: pretty; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(17, 17, 17, 0.4);
}
.modal-backdrop.is-open:not([hidden]) { display: flex; }
.modal {
  width: min(580px, 100%);
  max-height: calc(100dvh - 2.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  scrollbar-gutter: stable;
}
.modal-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.modal-head h3 { margin: 0.625rem 0 0; font-size: 1.5rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1.3; }
.modal .price { margin: 1rem 0; font-size: 2.75rem; font-weight: 600; letter-spacing: -0.055em; line-height: 1.1; }
.modal .close {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 6px;
  background: var(--bg);
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 180ms ease, transform 120ms ease;
}
.modal .close:hover { background: var(--line); }
.modal .close:active { transform: scale(0.98); }
#modal-blurb { margin: 0 0 1.5rem; color: var(--muted); font-size: 0.9375rem; }
.modal .card-subhead { margin-top: 1.5rem; font-size: 0.875rem; font-weight: 600; }
.modal ul { margin: 0.625rem 0 0; padding-left: 1.125rem; font-size: 0.9375rem; }
.modal li { margin-block: 0.375rem; }
.modal .card-meta { margin: 1.25rem 0 0; color: var(--muted); font-size: 0.875rem; }
.modal .card-meta strong { color: var(--ink); font-weight: 500; }
.modal .card-meta.caveat { padding: 1rem; border-radius: 6px; background: var(--bg); }
.modal .pay-note { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.8125rem; }

.site-footer { padding: 2.5rem 0 3rem; background: var(--surface); color: var(--muted); font-size: 0.875rem; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.legal-note { max-width: 65ch; font-size: 0.8125rem; line-height: 1.7; text-wrap: pretty; }
.pay-note { margin-top: 0.75rem; }
.hide-sm { display: none; }

@media (min-width: 960px) {
  .hide-sm { display: inline; }
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr);
    column-gap: 3.5rem;
    align-items: start;
  }
  .hero-visual { display: flex; flex-direction: column; gap: 1.75rem; margin-top: 0; padding-top: 0.35rem; }
  .hero-art {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    background: transparent;
  }
  .hero-art img {
    display: block;
    width: 100%;
    height: auto;
    vertical-align: middle;
  }
  .sample-quote { margin: 0; }
}
@media (min-width: 1200px) {
  #how .panel { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 0 5rem; }
  #how h2:first-child { grid-column: 1; grid-row: 1; }
  #how .steps { grid-column: 1; grid-row: 2; gap: 2rem; }
  #how .done-title { grid-column: 2; grid-row: 1; margin-top: 0; }
  #how .done-list { grid-column: 2; grid-row: 2; }
}
@media (max-width: 959px) {
  .badge { display: none; }
  .hero { padding: 4rem 0 5rem; }
  .hero h1 { font-size: clamp(2.75rem, 8vw, 4.5rem); }
  .pricing, .panel-section { padding-bottom: 5rem; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 599px) {
  html { scroll-padding-top: 2rem; }
  .wrap { width: calc(100% - 2.5rem); }
  .site-header .wrap { min-height: 76px; gap: 0.75rem; }
  .nav-links { gap: 0.75rem; }
  .nav-links a { font-size: 0.8125rem; }
  .hero { padding: 3rem 0 4.5rem; }
  .hero h1 { font-size: clamp(2.75rem, 10vw, 3.75rem); }
  .sample-quote { margin-top: 3.5rem; padding-left: 1.25rem; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .card-mini { padding: 1.5rem; }
  .card-mini.featured { padding-left: calc(1.5rem - 2px); }
  .card-mini h3 { min-height: 0; }
  .steps, #payment .panel, .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 1.75rem; }
  .panel .done-title { margin-top: 3rem; }
  #payment h2 { margin-bottom: 0.25rem; }
  .modal-backdrop { align-items: flex-end; padding: 0.75rem; }
  .modal { max-height: calc(100dvh - 1.5rem); padding: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}