:root {
  --ink: #191A1C;
  --ink2: #4C4E52;
  --ink3: #8A8C90;
  --line: #E5E3DE;
  --bg: #FCFBF8;
  --paper: #FFFFFF;
  --brand: #A8703F;
  --brand-soft: #F7F0E7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 36px; }
.serif { font-family: Georgia, "Songti SC", "SimSun", serif; }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 30;
  background: rgba(252,251,248,.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.hd { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.logo i {
  width: 30px; height: 30px; border-radius: 8px; background: var(--brand);
  color: #fff; font-style: normal; display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 600;
}
.logo b { font-size: 16px; font-weight: 600; letter-spacing: .5px; color: var(--ink); }
nav { display: flex; gap: 34px; font-size: 14px; }
nav a { color: var(--ink2); text-decoration: none; transition: color .2s; position: relative; padding: 4px 0; }
nav a:hover { color: var(--brand); }
nav a.on { color: var(--ink); font-weight: 500; }
nav a.on::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--brand);
}

/* ---------- hero ---------- */
.hero { padding: 100px 0 88px; position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; right: -220px; top: -100px; width: 580px; height: 580px;
  background: radial-gradient(circle, rgba(168,112,63,.08) 0%, rgba(252,251,248,0) 68%);
  pointer-events: none;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11.5px; letter-spacing: 3px; color: var(--brand); margin-bottom: 28px;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--brand); }
.hero h1 {
  font-size: 54px; line-height: 1.3; font-weight: 500; letter-spacing: -1px;
  margin-bottom: 26px; max-width: 780px;
}
.hero h1 em { font-style: normal; color: var(--brand); }
.hero p { font-size: 16.5px; color: var(--ink2); max-width: 640px; }

/* ---------- page hero (子页面) ---------- */
.phero { padding: 72px 0 56px; border-bottom: 1px solid var(--line); }
.phero .label { font-size: 11.5px; letter-spacing: 2.6px; color: var(--ink3); margin-bottom: 16px; display: block; }
.phero h1 { font-size: 40px; font-weight: 500; letter-spacing: -.6px; line-height: 1.35; margin-bottom: 16px; }
.phero p { font-size: 15.5px; color: var(--ink2); max-width: 620px; }

/* ---------- meta ---------- */
.meta {
  display: flex; gap: 56px; margin-top: 58px; padding-top: 32px;
  border-top: 1px solid var(--line); flex-wrap: wrap;
}
.meta div { min-width: 110px; }
.meta b { display: block; font-size: 21px; font-weight: 600; margin-bottom: 3px; }
.meta span { font-size: 12.5px; color: var(--ink3); letter-spacing: .5px; }

/* ---------- section ---------- */
section { padding: 86px 0; border-top: 1px solid var(--line); }
section.first { border-top: 0; padding-top: 64px; }
.sec-h {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 46px; gap: 40px; flex-wrap: wrap;
}
.sec-h h2 { font-size: 30px; font-weight: 500; letter-spacing: -.4px; line-height: 1.45; max-width: 560px; }
.sec-h .label { font-size: 11.5px; letter-spacing: 2.6px; color: var(--ink3); margin-bottom: 14px; display: block; }
.sec-h .side { font-size: 14px; color: var(--ink3); max-width: 310px; line-height: 1.85; }

/* ---------- services grid ---------- */
.svc {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
}
.svc-item {
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 34px 30px 38px; background: var(--paper); transition: background .25s;
  text-decoration: none; display: block;
}
.svc-item:hover { background: #FDFBF7; }
.svc-item .no { font-size: 11px; color: var(--brand); letter-spacing: 1.5px; display: block; margin-bottom: 20px; }
.svc-item h3 { font-size: 17px; font-weight: 500; margin-bottom: 10px; color: var(--ink); }
.svc-item p { font-size: 13.5px; color: var(--ink3); line-height: 1.85; }

/* ---------- about ---------- */
.about { display: grid; grid-template-columns: 1.1fr 1fr; gap: 72px; align-items: start; }
.about p { font-size: 15px; color: var(--ink2); margin-bottom: 20px; }
.about .quote {
  border-left: 2px solid var(--brand); padding-left: 22px;
  font-size: 18px; line-height: 1.7; color: var(--ink); margin: 34px 0 0;
}
.facts { border-top: 1px solid var(--line); }
.facts div {
  display: flex; justify-content: space-between; gap: 24px;
  padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 13.5px;
}
.facts dt { color: var(--ink3); flex-shrink: 0; }
.facts dd { color: var(--ink); text-align: right; }

/* ---------- cases ---------- */
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case {
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  overflow: hidden; transition: .25s;
}
.case:hover { border-color: #D8CBBB; transform: translateY(-3px); box-shadow: 0 12px 32px rgba(80,60,40,.07); }
.case .thumb {
  height: 210px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.case .thumb span {
  font-size: 56px; font-weight: 500; letter-spacing: 4px; color: rgba(255,255,255,.9);
  font-family: Georgia, serif;
}
.case .body { padding: 22px 24px 26px; }
.case .body .k { font-size: 11px; letter-spacing: 1.6px; color: var(--brand); margin-bottom: 8px; }
.case .body h3 { font-size: 16.5px; font-weight: 500; margin-bottom: 8px; }
.case .body p { font-size: 13px; color: var(--ink3); line-height: 1.8; }

.c1 { background: linear-gradient(135deg, #2C3330, #454F49); }
.c2 { background: linear-gradient(135deg, #4A3327, #7A5439); }
.c3 { background: linear-gradient(135deg, #33313D, #575169); }
.c4 { background: linear-gradient(135deg, #3B2A28, #6B4238); }
.c5 { background: linear-gradient(135deg, #24333A, #3E5C68); }
.c6 { background: linear-gradient(135deg, #3A3527, #6B6039); }

/* ---------- process ---------- */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.step { padding: 30px 26px 34px 0; border-bottom: 1px solid var(--line); position: relative; }
.step:not(:last-child)::after {
  content: ""; position: absolute; right: 26px; top: 42px; width: 32px; height: 1px; background: var(--line);
}
.step .n { font-size: 12px; color: var(--brand); letter-spacing: 1.5px; margin-bottom: 14px; display: block; }
.step h3 { font-size: 16px; font-weight: 500; margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--ink3); line-height: 1.8; }

/* ---------- service detail ---------- */
.sd { border-top: 1px solid var(--line); padding: 40px 0; display: grid; grid-template-columns: 260px 1fr; gap: 60px; }
.sd:last-child { border-bottom: 1px solid var(--line); }
.sd .left .no { font-size: 11.5px; letter-spacing: 1.6px; color: var(--brand); display: block; margin-bottom: 10px; }
.sd .left h3 { font-size: 22px; font-weight: 500; margin-bottom: 10px; }
.sd .left span.desc { font-size: 12.5px; color: var(--ink3); }
.sd .right p { font-size: 14.5px; color: var(--ink2); margin-bottom: 16px; }
.sd .deliver { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.sd .deliver span {
  font-size: 12px; color: var(--ink2); background: var(--brand-soft);
  border: 1px solid #EFE1CF; padding: 5px 13px; border-radius: 4px;
}

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 72px; }
.contact-grid > div { padding: 22px 0; border-bottom: 1px solid var(--line); }
.contact-grid dt { font-size: 11.5px; letter-spacing: 1.6px; color: var(--ink3); margin-bottom: 7px; }
.contact-grid dd { font-size: 15.5px; color: var(--ink); }
.contact-grid dd a { text-decoration: none; border-bottom: 1px solid transparent; transition: .2s; }
.contact-grid dd a:hover { color: var(--brand); border-color: var(--brand); }

.map {
  margin-top: 44px; height: 260px; border-radius: 12px; border: 1px solid var(--line);
  background:
    repeating-linear-gradient(0deg, transparent, transparent 39px, #EFEDE7 39px, #EFEDE7 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, #EFEDE7 39px, #EFEDE7 40px),
    #F7F5F0;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 10px;
  color: var(--ink3); font-size: 13px; position: relative;
}
.map .pin {
  width: 12px; height: 12px; border-radius: 50%; background: var(--brand);
  box-shadow: 0 0 0 6px rgba(168,112,63,.18);
}

/* ---------- cta ---------- */
.cta {
  background: #1F2120; color: #F3F1EC; padding: 76px 0; text-align: center;
}
.cta h2 { font-size: 32px; font-weight: 500; letter-spacing: -.4px; margin-bottom: 16px; }
.cta p { font-size: 15px; color: #A9A8A2; margin-bottom: 34px; }
.cta a {
  display: inline-block; background: var(--brand); color: #fff; text-decoration: none;
  padding: 13px 34px; border-radius: 6px; font-size: 14.5px; transition: .2s;
}
.cta a:hover { background: #965F33; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 44px 0 50px; font-size: 12.5px; color: var(--ink3); }
.ft { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 30px; }
.ft h4 { font-size: 13px; color: var(--ink); font-weight: 500; margin-bottom: 14px; }
.ft p, .ft a { font-size: 12.5px; color: var(--ink3); line-height: 2; text-decoration: none; display: block; }
.ft a:hover { color: var(--brand); }
.copy {
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding-top: 24px; border-top: 1px solid var(--line);
}
.copy a { color: var(--ink3); text-decoration: none; }
.copy a:hover { color: var(--brand); }

@media (max-width: 900px) {
  .wrap { padding: 0 22px; }
  .hero { padding: 64px 0 56px; }
  .hero h1 { font-size: 33px; }
  .phero h1 { font-size: 28px; }
  .meta { gap: 26px; margin-top: 38px; }
  .svc, .cases { grid-template-columns: 1fr; }
  .about, .contact-grid, .process { grid-template-columns: 1fr; gap: 0; }
  .about > div + div { margin-top: 30px; }
  .sd { grid-template-columns: 1fr; gap: 20px; }
  .ft { grid-template-columns: 1fr; gap: 24px; }
  nav { display: none; }
  section { padding: 54px 0; }
  .sec-h h2 { font-size: 22px; }
}