:root {
  --bg: #ffffff;
  --ink: #0b0c0f;
  --muted: #686d75;
  --soft: #f6f6f4;
  --line: #dedbd4;
  --line-dark: #b9b2a6;
  --gold: #9b7a3e;
  --gold-deep: #725622;
  --graphite: #25272d;
  --shadow: 0 24px 80px rgba(20, 22, 28, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    "PingFang SC",
    "Microsoft YaHei",
    "Noto Sans CJK SC",
    "Helvetica Neue",
    Arial,
    sans-serif;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(11, 12, 15, 0.035) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(rgba(11, 12, 15, 0.025) 1px, transparent 1px) 0 0 / 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent 70%);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  overflow: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  padding: 24px clamp(24px, 5vw, 72px);
  border-bottom: 1px solid rgba(222, 219, 212, 0);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  transition:
    border-color 220ms ease,
    padding 220ms ease,
    box-shadow 220ms ease;
}

.site-header.is-scrolled {
  padding-block: 16px;
  border-color: rgba(222, 219, 212, 0.85);
  box-shadow: 0 18px 50px rgba(20, 22, 28, 0.05);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--gold);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.35;
}

.brand-text {
  display: grid;
  gap: 2px;
  line-height: 1;
}

.brand-text strong {
  font-size: 18px;
  font-weight: 700;
}

.brand-text small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: clamp(22px, 4vw, 54px);
  align-items: center;
  justify-content: center;
  color: #262830;
  font-size: 14px;
  font-weight: 500;
}

.nav-links a {
  position: relative;
  padding: 8px 0;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 240ms ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--gold);
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  transition:
    background 220ms ease,
    color 220ms ease,
    transform 220ms ease;
}

.nav-cta:hover {
  background: var(--ink);
  color: #fff;
  transform: translateY(-1px);
}

.section,
.hero,
.contact-section {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding-inline: clamp(24px, 6.5vw, 96px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  gap: clamp(28px, 5vw, 82px);
  align-items: center;
  min-height: 760px;
  padding-top: 112px;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
  padding-top: 44px;
}

.gold-rule {
  width: 56px;
  height: 3px;
  margin-bottom: 34px;
  background: var(--gold);
}

.hero h1 {
  max-width: min(660px, 100%);
  margin: 0;
  color: var(--ink);
  font-size: clamp(48px, 6vw, 86px);
  font-weight: 700;
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.hero h1 span {
  display: block;
}

.hero-lede {
  max-width: min(620px, 100%);
  margin: 28px 0 0;
  color: #343943;
  font-size: clamp(17px, 1.6vw, 21px);
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.hero-lede span {
  display: inline;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 42px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 22px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition:
    transform 220ms ease,
    background 220ms ease,
    color 220ms ease,
    border-color 220ms ease;
}

.primary-button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.primary-button:hover,
.secondary-button:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  transform: translateY(-2px);
}

.secondary-button {
  border-color: var(--line-dark);
  color: #2f3239;
}

.hero-visual {
  position: relative;
  min-width: 0;
  min-height: 560px;
}

.hero-visual::before {
  position: absolute;
  inset: 9% 0 8% 8%;
  content: "";
  border: 1px solid rgba(155, 122, 62, 0.16);
  transform: skewX(-10deg);
}

.hero-visual img {
  position: absolute;
  right: -16%;
  bottom: -4%;
  width: min(920px, 75vw);
  max-width: none;
  filter: saturate(0.92) contrast(1.02);
  mix-blend-mode: multiply;
}

.positioning {
  padding-top: 58px;
  padding-bottom: 74px;
  border-bottom: 1px solid var(--line);
}

.section-kicker,
.section-heading span,
.panel-index {
  display: inline-block;
  color: var(--gold-deep);
  font-size: 13px;
  font-weight: 700;
}

.positioning-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(32px, 6vw, 90px);
  align-items: end;
  margin-top: 16px;
}

.positioning h2,
.section-heading h2,
.geo-panel h2,
.contact-inner h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 54px);
  font-weight: 650;
  line-height: 1.28;
}

.positioning-points {
  display: grid;
  border-top: 1px solid var(--line);
}

.positioning-points p {
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  color: #2b2f37;
  font-size: 18px;
}

.pillar-section,
.geo-section,
.services-section,
.process-section,
.process-section {
  padding-top: clamp(76px, 8vw, 116px);
  padding-bottom: clamp(76px, 8vw, 116px);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: 12px;
  max-width: 880px;
}

.section-heading.compact {
  max-width: 760px;
}

.pillar-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(36px, 6vw, 92px);
  margin-top: 58px;
}

.pillar-intro {
  display: grid;
  align-content: start;
  gap: 24px;
  padding-top: 2px;
}

.pillar-intro p,
.geo-panel p,
.geo-copy p,
.contact-inner p {
  margin: 0;
  color: #3e434d;
  font-size: 18px;
  line-height: 1.95;
}

.insight-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.insight-list article {
  display: grid;
  grid-template-columns: 72px minmax(160px, 0.42fr) minmax(0, 0.58fr);
  gap: 28px;
  align-items: baseline;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.insight-list span,
.process-line span {
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  line-height: 1;
}

.insight-list h3,
.service-rail h3,
.process-line h3,
.case-list h3,
.geo-copy h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 650;
  line-height: 1.35;
}

.insight-list p,
.service-rail p,
.process-line p,
.case-list p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.geo-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(36px, 6vw, 84px);
  align-items: center;
}

.geo-panel {
  position: relative;
  display: grid;
  min-height: 460px;
  align-items: end;
  padding: clamp(28px, 4vw, 48px);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(246, 246, 244, 0.92)),
    radial-gradient(circle at 70% 20%, rgba(155, 122, 62, 0.12), transparent 35%);
  box-shadow: var(--shadow);
}

.geo-panel h2 {
  margin-top: 14px;
  margin-bottom: 24px;
}

.geo-orbit {
  position: absolute;
  top: 44px;
  right: 44px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(155, 122, 62, 0.38);
  border-radius: 50%;
}

.geo-orbit::before,
.geo-orbit::after {
  position: absolute;
  inset: 24px;
  content: "";
  border: 1px solid rgba(11, 12, 15, 0.12);
  border-radius: 50%;
}

.geo-orbit::after {
  inset: 54px;
}

.geo-orbit span {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
}

.geo-orbit span:nth-child(1) {
  top: 24px;
  left: 48px;
}

.geo-orbit span:nth-child(2) {
  right: 18px;
  top: 92px;
  background: #111;
}

.geo-orbit span:nth-child(3) {
  left: 80px;
  bottom: 18px;
  background: #c6c1b8;
}

.geo-copy {
  display: grid;
  gap: 42px;
}

.geo-copy > div {
  display: grid;
  gap: 18px;
}

.geo-copy ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.geo-copy li {
  min-height: 74px;
  padding: 22px 18px 18px 0;
  border-bottom: 1px solid var(--line);
  color: #2d3037;
  font-size: 16px;
}

.service-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-rail article {
  min-height: 230px;
  padding: 32px 28px;
  border-right: 1px solid var(--line);
}

.service-rail article:last-child {
  border-right: 0;
}

.service-rail svg {
  width: 38px;
  height: 38px;
  margin-bottom: 34px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.45;
}

.service-rail h3 {
  margin-bottom: 12px;
}

.process-line {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 48px;
}

.process-line article {
  position: relative;
  padding-right: 28px;
}

.process-line article::before {
  position: absolute;
  top: 14px;
  right: 20px;
  left: 48px;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, var(--line-dark), rgba(185, 178, 166, 0));
}

.process-line article:last-child::before {
  display: none;
}

.process-line h3 {
  margin-top: 28px;
  margin-bottom: 10px;
  font-size: 18px;
}

.contact-section {
  padding-top: clamp(86px, 9vw, 132px);
  padding-bottom: clamp(72px, 8vw, 112px);
}

.contact-inner {
  display: grid;
  max-width: 940px;
  gap: 26px;
  padding: clamp(36px, 6vw, 72px);
  border: 1px solid var(--graphite);
  background:
    linear-gradient(135deg, rgba(11, 12, 15, 0.98), rgba(37, 39, 45, 0.96)),
    radial-gradient(circle at 90% 10%, rgba(155, 122, 62, 0.25), transparent 32%);
  color: #fff;
}

.contact-inner p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.76);
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  margin-top: 14px;
}

.primary-button.dark {
  border-color: var(--gold);
  color: #fff;
}

.primary-button.dark:hover {
  background: #fff;
  border-color: #fff;
  color: var(--ink);
}

.contact-actions > span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 26px clamp(24px, 6.5vw, 96px) 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  padding: 12px 16px;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition:
    opacity 220ms ease,
    transform 220ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .geo-section,
  .positioning-grid,
  .pillar-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 126px;
  }

  .hero-visual {
    min-height: 420px;
  }

  .hero-visual img {
    right: -18%;
    width: min(820px, 110vw);
  }

  .service-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-rail article:nth-child(2) {
    border-right: 0;
  }

  .service-rail article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .process-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px 26px;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 16px 18px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .brand-text strong {
    font-size: 16px;
  }

  .nav-cta {
    display: none;
  }

  .hero,
  .section,
  .contact-section,
  .site-footer {
    padding-inline: 20px;
  }

  .hero {
    padding-top: 112px;
  }

  .hero h1 {
    font-size: 43px;
    word-break: break-all;
  }

  .hero-lede {
    font-size: 16px;
    line-height: 1.82;
    word-break: break-all;
  }

  .hero-lede span {
    display: block;
  }

  .hero-visual {
    min-height: 300px;
    margin-top: 4px;
  }

  .hero-visual::before {
    inset: 12% 4% 12% 0;
  }

  .hero-visual img {
    right: 0;
    bottom: 0;
    width: 100%;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .positioning h2,
  .section-heading h2,
  .geo-panel h2,
  .contact-inner h2 {
    font-size: 31px;
  }

  .positioning-points p {
    font-size: 16px;
  }

  .geo-panel {
    min-height: 420px;
    padding: 28px;
  }

  .geo-orbit {
    top: 26px;
    right: 26px;
    width: 128px;
    height: 128px;
  }

  .geo-copy ul,
  .service-rail,
  .process-line {
    grid-template-columns: 1fr;
  }

  .service-rail article,
  .service-rail article:nth-child(2) {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .service-rail article:last-child {
    border-bottom: 0;
  }

  .insight-list article {
    grid-template-columns: 48px 1fr;
    gap: 12px 18px;
  }

  .insight-list article p {
    grid-column: 2;
  }

  .process-line article {
    padding-bottom: 22px;
    border-bottom: 1px solid var(--line);
  }

  .process-line article::before {
    display: none;
  }

  .site-footer {
    display: grid;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

}