:root {
  --ink: #161616;
  --muted: #707070;
  --warm: #f5f3ef;
  --line: #deddd9;
  --accent: #84684f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.nav {
  height: 76px;
  max-width: 1320px;
  margin: auto;
  padding: 0 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(0,0,0,.07);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 18px; font-weight: 650; letter-spacing: .04em; }
.brand-mark {
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 50%; background: var(--ink); color: white; font-family: Georgia, serif; font-size: 17px;
}
.nav nav { display: flex; align-items: center; gap: 34px; font-size: 14px; }
.nav nav a { transition: opacity .2s; }
.nav nav a:hover { opacity: .55; }
.nav-phone { background: var(--ink); color: white; padding: 10px 18px; border-radius: 999px; }

.hero { text-align: center; padding: 92px 36px 0; overflow: hidden; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px; color: #555; font-size: 13px;
  letter-spacing: .18em; margin-bottom: 26px;
}
.eyebrow span { width: 6px; height: 6px; border-radius: 50%; background: #7f9a73; box-shadow: 0 0 0 4px #edf2eb; }
.hero h1 {
  margin: 0; font-size: clamp(52px, 7vw, 100px); line-height: 1.04; letter-spacing: -.065em;
  font-weight: 650;
}
.hero-sub { margin: 34px auto 0; font-size: 19px; line-height: 1.75; color: var(--muted); font-weight: 400; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 34px; margin: 38px 0 72px; }
.primary-btn {
  display: inline-flex; align-items: center; gap: 28px; background: var(--ink); color: white;
  border-radius: 999px; padding: 16px 22px 16px 26px; font-size: 15px; transition: transform .25s, background .25s;
}
.primary-btn:hover { transform: translateY(-2px); background: #343434; }
.primary-btn span { font-size: 19px; }
.text-link { font-size: 15px; border-bottom: 1px solid #aaa; padding-bottom: 5px; }
.hero-visual {
  max-width: 1260px; margin: auto; height: min(660px, 56vw); min-height: 380px; border-radius: 32px 32px 0 0;
  position: relative; overflow: hidden; background: #ddd;
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.visual-note {
  position: absolute; bottom: 28px; left: 28px; text-align: left; color: white;
  background: rgba(17,17,17,.72); backdrop-filter: blur(16px); padding: 18px 22px; border-radius: 14px;
}
.visual-note span, .visual-note small { display: block; }
.visual-note span { font-size: 15px; font-weight: 600; }
.visual-note small { color: rgba(255,255,255,.65); font-size: 11px; margin-top: 5px; letter-spacing: .08em; }

.statement { padding: 170px 36px; text-align: center; background: var(--warm); }
.statement p { color: var(--accent); font-size: 14px; letter-spacing: .15em; margin: 0 0 24px; }
.statement h2 { margin: 0; font-size: clamp(36px, 4.7vw, 70px); line-height: 1.2; letter-spacing: -.045em; font-weight: 600; }

.cases-section { max-width: 1320px; margin: auto; padding: 150px 36px 170px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 58px; }
.section-kicker { display: block; font-size: 11px; letter-spacing: .22em; color: #8a725e; margin-bottom: 18px; font-weight: 700; }
.section-head h2, .service-intro h2 { margin: 0; font-size: clamp(40px, 4.5vw, 64px); letter-spacing: -.055em; line-height: 1.1; }
.section-head > p { margin: 0; color: #888; font-size: 13px; }
.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.case-card { border-radius: 24px; background: var(--warm); overflow: hidden; }
.compare { position: relative; aspect-ratio: 1.25; overflow: hidden; background: #ddd; }
.case-image { position: absolute; inset: 0; background-size: 200% 100%; background-repeat: no-repeat; }
.case-image.before { background-position: left center; }
.after-wrap { position: absolute; inset: 0; left: var(--position); overflow: hidden; }
.case-image.after { left: calc(var(--position) * -1); width: 100%; background-position: right center; }
.compare-line { position: absolute; top: 0; bottom: 0; left: var(--position); width: 1px; background: white; pointer-events: none; }
.compare-line span {
  position: absolute; top: 50%; left: 50%; translate: -50% -50%; width: 42px; height: 42px;
  border-radius: 50%; display: grid; place-items: center; background: white; color: #222; box-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.compare-range { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; }
.image-tag {
  position: absolute; top: 18px; z-index: 2; color: white; background: rgba(0,0,0,.58);
  backdrop-filter: blur(10px); border-radius: 999px; padding: 7px 11px; font-size: 11px; letter-spacing: .12em; pointer-events: none;
}
.tag-before { left: 18px; }
.tag-after { right: 18px; }
.case-copy { padding: 26px 28px 30px; }
.case-copy h3 { font-size: 20px; margin: 0 0 8px; letter-spacing: -.02em; }
.case-copy p { color: #777; margin: 0; font-size: 14px; }

.service-section {
  display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; max-width: 1320px; margin: auto;
  padding: 150px 36px 180px; border-top: 1px solid var(--line);
}
.service-intro { position: sticky; top: 60px; align-self: start; }
.service-intro p { color: #777; font-size: 17px; line-height: 1.8; max-width: 440px; margin-top: 28px; }
.service-list > div {
  display: grid; grid-template-columns: 52px 1fr; column-gap: 24px; padding: 31px 0;
  border-top: 1px solid var(--line);
}
.service-list > div:last-child { border-bottom: 1px solid var(--line); }
.service-list span { grid-row: 1 / 3; color: #9a836e; font-size: 12px; padding-top: 5px; }
.service-list h3 { margin: 0 0 10px; font-size: 22px; letter-spacing: -.02em; }
.service-list p { margin: 0; color: #777; font-size: 14px; }

.promise { text-align: center; padding: 160px 36px; background: #171717; color: white; }
.section-kicker.light { color: #aa9178; }
.promise h2 { margin: 0; font-size: clamp(40px, 5vw, 72px); letter-spacing: -.055em; }
.promise p { color: #8d8d8d; margin: 24px 0 52px; font-size: 15px; }
.promise a { display: inline-flex; align-items: center; gap: 26px; font-size: clamp(27px, 3vw, 42px); letter-spacing: -.03em; border-bottom: 1px solid #555; padding-bottom: 12px; }

footer {
  padding: 38px 36px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  max-width: 1320px; margin: auto; color: #777; font-size: 12px;
}
footer .brand { color: var(--ink); font-size: 15px; }
footer .brand-mark { width: 26px; height: 26px; font-size: 14px; }
footer p { margin: 0; }
footer p:last-child { text-align: right; }

@media (max-width: 760px) {
  .nav { height: 64px; padding: 0 20px; }
  .nav nav > a:not(.nav-phone) { display: none; }
  .nav-phone { padding: 8px 14px; }
  .hero { padding: 70px 18px 0; }
  .hero h1 { font-size: 51px; }
  .hero-sub { font-size: 16px; line-height: 1.65; }
  .desktop-only { display: none; }
  .hero-actions { margin: 30px 0 48px; gap: 22px; }
  .hero-visual { height: 480px; min-height: 0; border-radius: 22px 22px 0 0; }
  .hero-visual img { object-position: 47% center; }
  .visual-note { bottom: 16px; left: 16px; padding: 14px 16px; }
  .statement { padding: 105px 22px; }
  .statement h2 br { display: none; }
  .cases-section { padding: 100px 18px 110px; }
  .section-head { display: block; margin-bottom: 34px; }
  .section-head > p { margin-top: 16px; }
  .case-grid { grid-template-columns: 1fr; }
  .compare { aspect-ratio: 1.05; }
  .service-section { grid-template-columns: 1fr; gap: 52px; padding: 100px 22px 120px; }
  .service-intro { position: static; }
  .promise { padding: 110px 20px; }
  footer { padding: 34px 20px; grid-template-columns: 1fr auto; row-gap: 20px; }
  footer > p:nth-child(2) { grid-column: 1 / 3; grid-row: 2; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}