:root {
  color-scheme: light dark;
  --bg: #f6f1e7;
  --surface: #fffdf8;
  --soft: #e8efea;
  --warm: #f1dfd3;
  --ink: #1f2925;
  --muted: #58665e;
  --line: #d4d6ce;
  --brand: #11645b;
  --brand-strong: #0b4e47;
  --on-brand: #f8fffc;
  --warm-ink: #7d3f2a;
  --shadow: 0 24px 64px rgba(48, 69, 59, .14);
  --radius: 26px;
  --radius-small: 16px;
  --page: min(1080px, calc(100% - 48px));
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17201d;
    --surface: #222c28;
    --soft: #293a34;
    --warm: #3b2c27;
    --ink: #edf3ef;
    --muted: #b6c2ba;
    --line: #405048;
    --brand: #74c7b9;
    --brand-strong: #94ddcf;
    --on-brand: #112a25;
    --warm-ink: #f0b198;
    --shadow: 0 26px 70px rgba(4, 10, 8, .34);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 4px; }
.wrap { width: var(--page); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 30;
  top: 10px;
  left: 10px;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 750;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.nav {
  min-height: 70px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  font-weight: 780;
  letter-spacing: -.02em;
  text-decoration: none;
  white-space: nowrap;
}
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 13px;
  background: var(--brand);
  color: var(--on-brand);
  font-size: 19px;
}
.nav-links, .languages { display: flex; align-items: center; gap: 10px; }
.nav-links a, .languages a {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 14px;
  font-weight: 680;
  text-decoration: none;
  white-space: nowrap;
}
.nav-links a:hover, .languages a:hover, .languages a[aria-current="page"] { color: var(--brand); }
.languages a[aria-current="page"] { text-decoration: underline; text-underline-offset: 5px; }

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 12px 21px;
  background: var(--brand);
  color: var(--on-brand);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--brand) 22%, transparent);
  font-weight: 760;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform .2s ease, background-color .2s ease;
}
.button:hover { transform: translateY(-2px); background: var(--brand-strong); }
.button.secondary { border-color: var(--line); background: transparent; color: var(--ink); box-shadow: none; }
.button.secondary:hover { border-color: var(--brand); color: var(--brand); }

.breadcrumbs { padding-top: 24px; }
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 14px;
  list-style: none;
}
.breadcrumbs li + li::before { content: "/"; margin-right: 8px; color: var(--line); }
.breadcrumbs a { text-underline-offset: 3px; }

.hero {
  display: grid;
  grid-template-columns: 1.03fr .97fr;
  align-items: center;
  gap: clamp(34px, 6vw, 74px);
  padding-block: clamp(46px, 7vw, 82px);
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 13ch;
  margin-bottom: 20px;
  font-size: clamp(2.6rem, 5.7vw, 4.75rem);
  font-weight: 760;
  letter-spacing: -.055em;
  line-height: .99;
}
.hero-lead { max-width: 590px; margin-bottom: 24px; color: var(--muted); font-size: clamp(1.05rem, 1.6vw, 1.22rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-visual { margin: 0; }
.hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
}
.image-note { margin: 10px 4px 0; color: var(--muted); font-size: 12px; }

.answer-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: clamp(56px, 8vw, 92px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}
.answer-item { min-width: 0; padding: 22px 24px; background: var(--surface); }
.answer-item span { display: block; margin-bottom: 5px; color: var(--muted); font-size: 13px; }
.answer-item strong { display: block; color: var(--brand); font-size: clamp(1.15rem, 2vw, 1.55rem); line-height: 1.25; overflow-wrap: anywhere; }

section { padding-block: clamp(58px, 8vw, 92px); }
section.surface { background: var(--surface); }
section.soft { background: var(--soft); }
.section-head { max-width: 720px; margin-bottom: clamp(26px, 4vw, 42px); }
h2 { margin-bottom: 14px; font-size: clamp(2rem, 4.4vw, 3.4rem); font-weight: 740; letter-spacing: -.045em; line-height: 1.05; }
.section-head > p, .muted { color: var(--muted); }

.scope-grid, .detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.panel {
  min-width: 0;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}
.panel h3 { margin-bottom: 14px; font-size: clamp(1.28rem, 2.4vw, 1.7rem); line-height: 1.2; }
.panel.stop { background: var(--warm); }
.panel.stop h3 { color: var(--warm-ink); }
.scope-list { display: grid; gap: 11px; margin: 0; padding: 0; list-style: none; }
.scope-list li { position: relative; padding-left: 28px; }
.scope-list li::before { position: absolute; left: 0; top: 0; color: var(--brand); font-weight: 850; }
.scope-list.yes li::before { content: "✓"; }
.scope-list.no li::before { content: "—"; color: var(--warm-ink); }
.note { margin: 22px 0 0; padding: 17px 18px; border-left: 4px solid var(--brand); border-radius: 0 var(--radius-small) var(--radius-small) 0; background: var(--soft); color: var(--muted); }

.price-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px 30px;
  align-items: center;
  padding: clamp(24px, 5vw, 42px);
  border-radius: var(--radius);
  background: var(--brand);
  color: var(--on-brand);
}
.price-number { font-size: clamp(2.7rem, 7vw, 5.2rem); font-weight: 780; letter-spacing: -.06em; line-height: .95; white-space: nowrap; }
.price-copy h2 { margin-bottom: 8px; color: inherit; font-size: clamp(1.55rem, 3vw, 2.3rem); letter-spacing: -.035em; }
.price-copy p { max-width: 680px; margin-bottom: 0; opacity: .88; }
.price-foot { grid-column: 1 / -1; padding-top: 18px; border-top: 1px solid color-mix(in srgb, var(--on-brand) 32%, transparent); font-size: 14px; opacity: .9; }

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.step { position: relative; min-width: 0; padding: 72px 20px 22px; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--surface); }
.step::before {
  content: attr(data-step);
  position: absolute;
  top: 18px;
  left: 20px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--brand);
  border-radius: 50%;
  color: var(--brand);
  font-weight: 820;
}
.step h3 { margin-bottom: 7px; font-size: 1.05rem; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }

.faq-list { max-width: 860px; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 2px;
  cursor: pointer;
  font-weight: 730;
  list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; flex: 0 0 auto; color: var(--brand); font-size: 24px; font-weight: 500; }
details[open] summary::after { content: "−"; }
details p { max-width: 760px; margin: 0; padding: 0 34px 20px 2px; color: var(--muted); }

.related-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.related-card { display: flex; flex-direction: column; min-width: 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-small); background: var(--surface); text-decoration: none; }
.related-card span { margin-top: auto; padding-top: 16px; color: var(--brand); font-weight: 760; }
.related-card:hover { border-color: var(--brand); }

.final-cta { padding-block: clamp(52px, 8vw, 80px); }
.cta-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; padding: clamp(26px, 5vw, 48px); border-radius: var(--radius); background: var(--warm); }
.cta-panel h2 { margin-bottom: 8px; font-size: clamp(1.8rem, 3.7vw, 3rem); }
.cta-panel p { margin: 0; color: var(--muted); }

footer { padding-block: 34px calc(34px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: start; }
.footer-grid p { margin: 5px 0 0; }
.phone { display: inline-flex; min-height: 44px; align-items: center; color: var(--ink); font-size: 1.2rem; font-weight: 760; text-underline-offset: 4px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px 16px; }
.footer-links a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); text-underline-offset: 4px; }

@keyframes enter {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-copy, .hero-visual, .answer-strip { animation: enter .45s ease both; }
.hero-visual { animation-delay: .08s; }
.answer-strip { animation-delay: .14s; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero { grid-template-columns: 1fr; gap: 30px; }
  .hero-copy { max-width: 720px; }
  .hero-visual { max-width: 720px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .price-card { grid-template-columns: 1fr; gap: 16px; }
  .price-foot { grid-column: auto; }
}

@media (max-width: 640px) {
  :root { --page: min(100% - 32px, 1080px); }
  .nav { min-height: 64px; gap: 8px; }
  .brand-name { display: none; }
  .languages { gap: 2px; }
  .nav > .button { display: none; }
  .breadcrumbs { padding-top: 18px; }
  .hero { padding-block: 38px 54px; }
  h1 { font-size: clamp(2.35rem, 12.4vw, 3.4rem); }
  .hero-actions { display: grid; }
  .hero-actions .button { width: 100%; }
  .answer-strip { grid-template-columns: 1fr; }
  .answer-item { padding: 18px 20px; }
  .scope-grid, .detail-grid, .related-grid, .steps { grid-template-columns: 1fr; }
  .price-number { white-space: normal; }
  .cta-panel, .footer-grid { grid-template-columns: 1fr; }
  .cta-panel .button { width: 100%; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 360px) {
  :root { --page: min(100% - 32px, 1080px); }
  .languages a { min-width: 44px; padding-inline: 4px; }
  .panel, .related-card { padding: 19px; }
  .answer-item { padding: 17px; }
}

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

@media print {
  .site-header, .hero-actions, .final-cta { display: none; }
  body { background: #fff; color: #111; }
  .hero { display: block; }
  .hero-visual { max-width: 520px; margin-top: 24px; }
}