:root {
  --night: #102f3c;
  --night-soft: #164454;
  --paper: #f5f4ef;
  --ink: #20353b;
  --muted: #697c7e;
  --line: #d4dedb;
  --teal: #147d7f;
  --mint: #a6dfcc;
  --coral: #d66d51;
  --white: #fffefa;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  background: var(--night);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.65;
}
a { color: inherit; }
a:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
h1, h2, h3, p, dd { overflow-wrap: anywhere; }
.site-shell {
  display: grid;
  grid-template-columns: minmax(275px, .72fr) minmax(0, 1.28fr);
  width: min(1440px, 100%);
  height: 100svh;
  margin-inline: auto;
}

.brand-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  padding: clamp(30px, 4.2vw, 62px);
  color: var(--white);
  background: var(--night);
}
.brand-panel::after {
  content: "FH";
  position: absolute;
  right: -.14em;
  bottom: -.08em;
  color: transparent;
  font-family: Arial, sans-serif;
  font-size: clamp(180px, 23vw, 340px);
  font-weight: 700;
  letter-spacing: -.15em;
  line-height: .7;
  -webkit-text-stroke: 1px rgba(166, 223, 204, .16);
  pointer-events: none;
}
.brand-head { position: relative; z-index: 1; display: flex; align-items: center; gap: 14px; }
.monogram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--mint);
  color: var(--mint);
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -.18em;
}
.monogram span:last-child { color: var(--white); }
.brand-name { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: .1em; line-height: 1.3; }
.brand-subtitle { margin: 3px 0 0; color: #a9c2c2; font-size: 10px; letter-spacing: .12em; }
.brand-stamp { position: relative; z-index: 1; display: flex; align-items: center; gap: 12px; margin-top: auto; color: var(--mint); font-size: 11px; letter-spacing: .15em; }
.stamp-line { width: 29px; height: 1px; background: var(--mint); }
.brand-foot { position: relative; z-index: 1; max-width: 220px; margin-top: 28px; }
.brand-foot p { margin: 0; }
.brand-foot p:first-child { color: #d5e3df; font-size: 16px; line-height: 1.8; }
.brand-foot p:last-child { margin-top: 18px; color: var(--mint); font-size: 11px; letter-spacing: .12em; }

.content-panel {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  min-width: 0;
  overflow: hidden;
  padding: clamp(25px, 3.8vw, 54px) clamp(30px, 5.5vw, 86px) clamp(20px, 2.6vw, 34px);
  background: var(--paper);
}
.content-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 11px; letter-spacing: .15em; }
.content-top span:last-child { color: var(--teal); font-family: Arial, sans-serif; font-size: 13px; letter-spacing: .04em; }
.content-intro { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(180px, .85fr); align-items: end; gap: 36px; padding-block: 26px 22px; }
.eyebrow { margin: 0 0 13px; color: var(--coral); font-size: 11px; font-weight: 700; letter-spacing: .16em; }
h1 { margin: 0; color: var(--ink); font-size: clamp(42px, 5vw, 72px); font-weight: 700; letter-spacing: -.075em; line-height: 1.06; }
h1 em { color: var(--teal); font-style: normal; }
.intro-copy { max-width: 285px; margin: 0 0 4px; color: var(--muted); font-size: 13px; line-height: 1.95; }
.services, .identity { min-width: 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; padding-bottom: 9px; border-bottom: 1px solid var(--ink); }
.section-head h2 { margin: 0; color: var(--ink); font-size: 16px; font-weight: 700; letter-spacing: .05em; }
.section-head span { color: var(--coral); font-size: 10px; letter-spacing: .1em; white-space: nowrap; }
.service-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.service-item { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 14px; min-width: 0; padding: 15px 18px 16px 0; border-bottom: 1px solid var(--line); }
.service-item:nth-child(odd) { padding-right: 24px; border-right: 1px solid var(--line); }
.service-item:nth-child(even) { padding-left: 24px; }
.service-no { color: var(--coral); font-family: Arial, sans-serif; font-size: 10px; letter-spacing: .08em; }
.service-item h3 { margin: 0 0 4px; color: var(--ink); font-size: 15px; font-weight: 700; line-height: 1.4; }
.service-item p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.identity { margin-top: 18px; }
.identity-list { display: grid; grid-template-columns: 1.25fr .75fr .9fr; margin: 0; }
.identity-list > div { min-width: 0; padding: 13px 18px 0 0; }
.identity-list > div + div { padding-left: 18px; border-left: 1px solid var(--line); }
.identity-list dt { margin-bottom: 4px; color: var(--muted); font-size: 10px; }
.identity-list dd { margin: 0; color: var(--ink); font-size: 12px; line-height: 1.65; }
.identity-list a { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 930px) and (min-width: 681px) {
  .site-shell { grid-template-columns: minmax(235px, .62fr) minmax(0, 1.38fr); }
  .brand-panel { padding-inline: 32px; }
  .content-panel { padding-inline: 40px; }
  .content-intro { grid-template-columns: 1fr; gap: 14px; }
  .intro-copy { max-width: 440px; }
  h1 { font-size: clamp(40px, 5.1vw, 60px); }
}

@media (max-width: 680px) {
  .site-shell { grid-template-columns: 1fr; grid-template-rows: 112px 1fr; }
  .brand-panel { display: block; padding: 20px 22px; }
  .brand-panel::after { right: -10px; bottom: -38px; font-size: 150px; }
  .brand-head { display: inline-flex; }
  .monogram { width: 34px; height: 34px; font-size: 11px; }
  .brand-name { font-size: 17px; }
  .brand-subtitle { font-size: 9px; }
  .brand-stamp { position: absolute; right: 22px; bottom: 25px; margin: 0; font-size: 9px; }
  .brand-foot { display: none; }
  .content-panel { padding: 20px 22px 17px; }
  .content-top { padding-bottom: 10px; font-size: 9px; }
  .content-top span:last-child { font-size: 11px; }
  .content-intro { display: block; padding-block: 18px 17px; }
  .eyebrow { margin-bottom: 8px; font-size: 9px; }
  h1 { font-size: clamp(38px, 11.5vw, 52px); line-height: 1.02; }
  .intro-copy { max-width: 430px; margin-top: 13px; font-size: 12px; line-height: 1.7; }
  .service-item, .service-item:nth-child(odd), .service-item:nth-child(even) { grid-template-columns: 23px minmax(0, 1fr); gap: 7px; padding: 10px 9px 10px 0; }
  .service-item:nth-child(even) { padding-left: 9px; }
  .service-item h3 { font-size: 12px; margin-bottom: 2px; }
  .service-item p { font-size: 9px; line-height: 1.5; }
  .service-no { font-size: 9px; }
  .identity { margin-top: 12px; }
  .section-head { padding-bottom: 6px; }
  .section-head h2 { font-size: 13px; }
  .section-head span { font-size: 9px; }
  .identity-list { grid-template-columns: 1.25fr .75fr; }
  .identity-list > div { padding-top: 9px; padding-right: 9px; }
  .identity-list > div + div { padding-left: 9px; }
  .identity-list .identity-name { grid-column: 1 / -1; padding-bottom: 7px; border-bottom: 1px solid var(--line); }
  .identity-list dt { margin-bottom: 2px; font-size: 9px; }
  .identity-list dd { font-size: 10px; line-height: 1.45; }
}

@media (max-height: 720px) and (max-width: 680px) {
  .site-shell { grid-template-rows: 96px 1fr; }
  .brand-panel { padding-block: 14px; }
  .brand-stamp { bottom: 17px; }
  .content-panel { padding-top: 14px; padding-bottom: 11px; }
  .content-intro { padding-block: 12px 10px; }
  .intro-copy { margin-top: 9px; }
  .service-item, .service-item:nth-child(odd), .service-item:nth-child(even) { padding-block: 7px; }
  .identity { margin-top: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}