:root {
  --navy: #071421;
  --navy-light: #10283e;
  --gold: #c7a45d;
  --gold-light: #e0c788;
  --paper: #f5f3ee;
  --ink: #182534;
  --muted: #677586;
  --line: #dfe3e5;
  --white: #fff;
  --width: 1160px;
  --sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    "PingFang SC", Arial, sans-serif;
  --serif: "Songti SC", "STSong", "SimSun", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--navy);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 9px 14px;
  transform: translateY(-160%);
  background: var(--white);
  color: var(--navy);
  font-size: 13px;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: absolute;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 64px), var(--width));
  height: 84px;
  margin: auto;
  border-bottom: 1px solid rgb(255 255 255 / 13%);
  color: var(--white);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  font-family: Georgia, serif;
  font-size: 19px;
}

.brand > span:last-child {
  display: grid;
  gap: 2px;
}

.brand strong {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.13em;
}

.brand small {
  color: rgb(255 255 255 / 43%);
  font-size: 7px;
  letter-spacing: 0.14em;
}

.topbar nav {
  display: flex;
  gap: 36px;
}

.topbar nav a {
  color: rgb(255 255 255 / 68%);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.topbar nav a:hover,
.topbar nav a:focus-visible {
  color: var(--gold-light);
}

.hero {
  position: relative;
  display: grid;
  min-height: 680px;
  padding: 150px max(32px, calc((100% - var(--width)) / 2)) 105px;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 36%, rgb(199 164 93 / 12%), transparent 25%),
    linear-gradient(115deg, #06111d 20%, #0b1d30 100%);
  color: var(--white);
  isolation: isolate;
}

.hero::after {
  position: absolute;
  z-index: -1;
  top: -340px;
  right: -100px;
  width: 760px;
  height: 760px;
  border: 1px solid rgb(199 164 93 / 16%);
  border-radius: 50%;
  box-shadow:
    0 0 0 100px rgb(199 164 93 / 3%),
    0 0 0 200px rgb(199 164 93 / 2%);
  content: "";
}

.hero-grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  opacity: 0.16;
  background-image:
    linear-gradient(rgb(255 255 255 / 8%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 8%) 1px, transparent 1px);
  background-size: 70px 70px;
  mask-image: linear-gradient(to right, transparent 15%, black);
}

.hero-copy {
  align-self: center;
  width: min(670px, 63%);
}

.eyebrow,
.section-label {
  margin: 0 0 19px;
  color: var(--gold);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(48px, 5vw, 70px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: 0.04em;
}

.hero h1 span {
  color: var(--gold-light);
}

.hero-copy > p:not(.eyebrow) {
  max-width: 600px;
  margin: 26px 0 0;
  color: rgb(255 255 255 / 62%);
  font-size: 16px;
  line-height: 1.9;
}

.hero-button {
  display: inline-grid;
  min-width: 148px;
  height: 47px;
  margin-top: 34px;
  padding: 0 23px;
  place-items: center;
  background: var(--gold);
  color: var(--navy);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.hero-button:hover,
.hero-button:focus-visible {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.hero-symbol {
  position: absolute;
  top: 51%;
  right: max(55px, calc((100% - var(--width)) / 2 + 35px));
  display: grid;
  width: 265px;
  height: 265px;
  place-items: center;
  border: 1px solid rgb(199 164 93 / 36%);
  border-radius: 50%;
  transform: translateY(-45%);
}

.hero-symbol::before,
.hero-symbol::after {
  position: absolute;
  border: 1px solid rgb(199 164 93 / 22%);
  content: "";
  transform: rotate(45deg);
}

.hero-symbol::before {
  width: 185px;
  height: 185px;
}

.hero-symbol::after {
  width: 145px;
  height: 145px;
}

.hero-symbol > div {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
}

.hero-symbol strong {
  color: var(--gold-light);
  font-family: Georgia, serif;
  font-size: 68px;
  font-weight: 400;
  line-height: 1;
}

.hero-symbol span {
  margin-top: 12px;
  color: rgb(255 255 255 / 38%);
  font-size: 8px;
  letter-spacing: 0.2em;
}

.motto {
  position: absolute;
  right: max(32px, calc((100% - var(--width)) / 2));
  bottom: 28px;
  left: max(32px, calc((100% - var(--width)) / 2));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgb(255 255 255 / 12%);
}

.motto span {
  padding-top: 15px;
  border-right: 1px solid rgb(255 255 255 / 10%);
  color: rgb(255 255 255 / 44%);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-align: center;
}

.motto span:first-child {
  text-align: left;
}

.motto span:last-child {
  border-right: 0;
  text-align: right;
}

.company-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 78px;
  padding: 90px max(32px, calc((100% - var(--width)) / 2));
  background: var(--paper);
}

.about-copy h2,
.business-heading h2,
.promise h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 3.5vw, 46px);
  font-weight: 500;
  letter-spacing: 0.06em;
}

.company-intro {
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
}

.company-value {
  margin: 24px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.8;
}

.business-panel {
  padding-left: 50px;
  border-left: 1px solid var(--line);
}

.business-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 30px;
}

.business-heading .section-label {
  order: 2;
  margin-bottom: 7px;
}

.business-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.business-grid article {
  position: relative;
  min-height: 150px;
  padding: 27px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 42%);
}

.business-grid article > span {
  position: absolute;
  top: 19px;
  right: 21px;
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 12px;
}

.business-grid h3 {
  margin: 0 0 13px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
}

.business-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.promise {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 100px;
  align-items: center;
  padding: 80px max(32px, calc((100% - var(--width)) / 2));
  background:
    linear-gradient(110deg, rgb(7 20 33 / 98%), rgb(16 40 62 / 95%)),
    var(--navy);
  color: var(--white);
}

.promise h2 {
  color: var(--gold-light);
  line-height: 1.55;
}

.strengths {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 28px;
  border-top: 1px solid rgb(255 255 255 / 14%);
  border-bottom: 1px solid rgb(255 255 255 / 14%);
}

.strengths span {
  padding: 18px 8px;
  border-right: 1px solid rgb(255 255 255 / 14%);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-align: center;
}

.strengths span:last-child {
  border-right: 0;
}

.promise-content > p {
  margin: 0;
  color: rgb(255 255 255 / 54%);
  font-size: 14px;
  line-height: 1.9;
}

.site-footer {
  padding: 35px 28px 27px;
  background: #040b13;
  color: rgb(255 255 255 / 50%);
  text-align: center;
}

.footer-brand {
  display: grid;
  gap: 6px;
  margin-bottom: 18px;
}

.footer-brand strong {
  color: var(--gold-light);
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.footer-brand span {
  font-size: 11px;
  letter-spacing: 0.06em;
}

.risk-note {
  margin: 0 0 17px;
  color: rgb(255 255 255 / 30%);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.7;
}

.icp-link {
  display: inline-block;
  line-height: 1.6;
  text-decoration: none;
}

.icp-link:hover,
.icp-link:focus-visible {
  color: #ff3b30;
  text-decoration: underline;
  text-underline-offset: 4px;
}

a:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 4px;
}

@media (max-width: 880px) {
  .hero-copy {
    width: 70%;
  }

  .hero-symbol {
    right: -35px;
    opacity: 0.42;
  }

  .company-section,
  .promise {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .business-panel {
    padding: 40px 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 580px) {
  .topbar {
    width: calc(100% - 40px);
    height: 74px;
  }

  .topbar nav {
    display: none;
  }

  .hero {
    min-height: 650px;
    padding: 126px 22px 94px;
  }

  .hero-copy {
    align-self: start;
    width: 100%;
  }

  .hero h1 {
    font-size: 41px;
  }

  .hero-copy > p:not(.eyebrow) {
    font-size: 14px;
  }

  .hero-symbol {
    top: auto;
    right: -65px;
    bottom: 65px;
    width: 230px;
    height: 230px;
    transform: none;
  }

  .hero-symbol::before {
    width: 160px;
    height: 160px;
  }

  .hero-symbol::after {
    width: 125px;
    height: 125px;
  }

  .hero-symbol strong {
    font-size: 56px;
  }

  .motto {
    right: 22px;
    bottom: 22px;
    left: 22px;
  }

  .motto span {
    padding-top: 12px;
    font-size: 9px;
  }

  .company-section,
  .promise {
    padding: 68px 22px;
  }

  .business-heading {
    display: block;
  }

  .business-heading .section-label {
    margin-bottom: 15px;
  }

  .business-grid {
    grid-template-columns: 1fr;
  }

  .business-grid article {
    min-height: 128px;
  }

  .strengths {
    grid-template-columns: 1fr 1fr;
  }

  .strengths span:nth-child(2) {
    border-right: 0;
  }

  .strengths span:nth-child(-n + 2) {
    border-bottom: 1px solid rgb(255 255 255 / 14%);
  }

  .site-footer {
    padding: 32px 22px 25px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}