:root {
  color-scheme: light;
  --ink: #111820;
  --ink-soft: #3e4953;
  --muted: #626b73;
  --faint: #7b838a;
  --paper: #ffffff;
  --paper-deep: #f3f4f5;
  --paper-warm: #f7f5f0;
  --navy: #152a3d;
  --navy-deep: #0f2030;
  --navy-soft: #dce5eb;
  --navy-pale: #edf2f5;
  --titanium: #9a8768;
  --titanium-deep: #6b5b45;
  --titanium-soft: #eee7db;
  --line: rgba(18, 25, 32, 0.11);
  --line-strong: rgba(18, 25, 32, 0.2);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Avenir Next", "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-editorial: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1220px;
  font-family: var(--font-ui);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 112px; background: var(--paper); }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body, button, a { -webkit-tap-highlight-color: transparent; }
button, input, textarea, select { font: inherit; }
a { color: inherit; text-underline-offset: 0.24em; }
button { color: inherit; }
svg { display: block; }
::selection { color: var(--navy-deep); background: #d6e1e8; }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { border: 2px solid var(--paper-deep); border-radius: 99px; background: var(--faint); }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 12px;
  padding: 11px 14px;
  color: #fff;
  background: var(--navy);
  border-radius: 10px;
  transform: translateY(-160%);
  transition: transform 220ms var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid rgba(59, 86, 111, 0.4); outline-offset: 3px; }

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 240ms var(--ease-out), background 240ms var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 36px rgba(20, 34, 48, 0.08);
  backdrop-filter: saturate(150%) blur(18px);
}
.official-bar { min-height: 32px; color: rgba(255, 255, 255, 0.82); background: var(--navy); }
.official-bar-inner {
  min-height: 32px;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  letter-spacing: 0.01em;
}
.official-mark { width: 6px; height: 6px; flex: 0 0 auto; background: #d5c4a8; border-radius: 50%; }
.official-bar-brand { margin-left: auto; color: rgba(255, 255, 255, 0.62); }
.nav-row { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.brand { display: grid; gap: 4px; flex: 0 0 auto; text-decoration: none; }
.brand strong {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1;
  font-weight: 650;
  letter-spacing: -0.035em;
}
.brand span { color: var(--muted); font-size: 10px; line-height: 1.2; }
.site-nav { display: flex; align-items: stretch; gap: 30px; height: 100%; }
.site-nav a {
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 560;
  text-decoration: none;
}
.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 16px;
  left: 0;
  height: 1px;
  background: var(--titanium);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease-out);
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.menu-button { display: none; }

.hero {
  min-height: calc(100svh - 108px);
  padding: clamp(52px, 6vw, 78px) 0 0;
  overflow: clip;
  background: var(--paper);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: clamp(54px, 7vw, 100px);
}
.hero-copy { align-self: center; padding-bottom: 40px; }
.hero-copy h1 {
  max-width: 7.6em;
  margin: 0;
  color: var(--navy);
  font-family: var(--font-editorial);
  font-size: clamp(50px, 4.6vw, 68px);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.hero-copy h1::after {
  content: "";
  width: 72px;
  height: 1px;
  margin-top: 34px;
  display: block;
  background: var(--titanium);
}
.hero-lead {
  max-width: 36em;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.9;
}
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.button {
  min-height: 48px;
  padding: 0 19px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition: background 220ms var(--ease-out), color 220ms var(--ease-out), transform 140ms ease-out;
}
.button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.button:active { transform: scale(0.985); }
.button-primary { color: #fff; background: var(--navy); }
.button-primary:hover { background: var(--navy-deep); }
.button-quiet { color: var(--navy); background: var(--navy-pale); }
.button-quiet:hover { background: var(--navy-soft); }
.hero-official-note {
  margin-top: 42px;
  padding-top: 18px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5px 14px;
  border-top: 1px solid var(--line);
}
.hero-official-note span { color: var(--titanium-deep); font-size: 11px; font-weight: 650; }
.hero-official-note strong { color: var(--navy); font-size: 12px; font-weight: 650; }
.hero-official-note small { grid-column: 1 / -1; color: var(--muted); font-size: 11px; line-height: 1.5; }

.dossier-stage {
  position: relative;
  min-height: 590px;
  display: grid;
  place-items: center;
  isolation: isolate;
  transform: translateY(-38px);
}
.dossier-folder {
  position: absolute;
  z-index: -2;
  inset: 2% 0 0 11%;
  background: var(--titanium-soft);
  border-radius: 5px 12px 10px 5px;
  transform: rotate(1.8deg);
  box-shadow: 0 18px 48px rgba(45, 40, 33, 0.13);
}
.dossier-folder::after {
  content: "";
  position: absolute;
  top: 0;
  right: 11%;
  width: 25%;
  height: 20px;
  border-radius: 5px 5px 0 0;
  background: var(--titanium-soft);
  transform: translateY(-18px);
}
.dossier-panel {
  position: relative;
  width: min(92%, 650px);
  min-height: 550px;
  margin: 0 8% 0 0;
  padding: clamp(36px, 4vw, 56px);
  color: #fff;
  background: var(--navy);
  clip-path: polygon(0 0, 82% 0, 100% 10%, 100% 100%, 0 100%);
  box-shadow: 0 28px 70px rgba(20, 34, 48, 0.25);
}
.dossier-panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18%;
  height: 10%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}
.dossier-heading { display: flex; align-items: baseline; gap: 10px; color: #d9c5a2; }
.dossier-heading span { font-size: 14px; }
.dossier-heading strong { font-family: var(--font-editorial); font-size: 30px; font-weight: 600; letter-spacing: -0.02em; }
.dossier-heading::after { content: ""; height: 1px; flex: 1; margin-left: 8px; background: rgba(217, 197, 162, 0.35); }
.dossier-list { margin: 38px 0 0; }
.dossier-list > div {
  padding: 19px 0;
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.dossier-list dt { color: rgba(255, 255, 255, 0.56); font-size: 12px; line-height: 1.65; }
.dossier-list dd { margin: 0; color: rgba(255, 255, 255, 0.88); font-size: 14px; line-height: 1.7; }
.dossier-footnote { margin: 24px 0 0; color: rgba(255, 255, 255, 0.52); font-size: 11px; line-height: 1.75; }
.dossier-curtain {
  position: absolute;
  z-index: 4;
  width: min(92%, 650px);
  min-height: 550px;
  margin: 0 8% 0 0;
  background: var(--paper-warm);
  clip-path: polygon(0 0, 82% 0, 100% 10%, 100% 100%, 0 100%);
  pointer-events: none;
}
.js .dossier-curtain { animation: dossier-open 1050ms 180ms var(--ease-out) both; }
@keyframes dossier-open { to { clip-path: polygon(100% 0, 100% 0, 100% 10%, 100% 100%, 100% 100%); } }

.hero-ledger {
  min-height: 118px;
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--paper-warm);
  border-top: 1px solid var(--line);
}
.hero-ledger a {
  min-width: 0;
  padding: 24px 22px;
  display: grid;
  align-content: center;
  gap: 7px;
  border-right: 1px solid var(--line);
  text-decoration: none;
  transition: color 220ms var(--ease-out), background 220ms var(--ease-out);
}
.hero-ledger a:last-child { border-right: 0; }
.hero-ledger a:hover { color: var(--navy); background: var(--titanium-soft); }
.hero-ledger strong { font-size: 14px; font-weight: 650; }
.hero-ledger span { color: var(--muted); font-size: 11px; line-height: 1.55; }

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: minmax(0, 0.9fr) minmax(450px, 1.1fr); gap: 38px; }
  .site-nav { gap: 20px; }
  .hero-copy h1 { font-size: clamp(48px, 5vw, 66px); }
  .dossier-stage { min-height: 540px; }
  .dossier-panel, .dossier-curtain { min-height: 510px; }
}

@media (max-width: 880px) {
  html { scroll-padding-top: 96px; }
  .official-bar-brand { display: none; }
  .nav-row { height: 68px; }
  .brand span { display: none; }
  .menu-button {
    width: 48px;
    height: 48px;
    padding: 0 13px;
    display: grid;
    align-content: center;
    gap: 7px;
    background: transparent;
    border: 0;
    border-radius: 10px;
    cursor: pointer;
  }
  .menu-button span { height: 1px; display: block; background: var(--navy); transition: transform 220ms var(--ease-out); }
  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .site-nav {
    position: absolute;
    inset: calc(100% + 1px) 0 auto;
    height: auto;
    padding: 12px 24px 22px;
    display: grid;
    gap: 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(20, 34, 48, 0.1);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 180ms ease-out, transform 240ms var(--ease-out), visibility 0s linear 240ms;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; transition-delay: 0s; }
  .site-nav a { min-height: 50px; border-bottom: 1px solid var(--line); }
  .site-nav a::after { display: none; }
  .hero { padding-top: 68px; }
  .hero-grid { grid-template-columns: 1fr; gap: 64px; }
  .hero-copy { padding: 0; }
  .hero-copy h1 { max-width: 9em; font-size: clamp(46px, 10vw, 68px); }
  .hero-lead { font-size: 16px; }
  .dossier-stage { min-height: 560px; transform: none; }
  .dossier-panel, .dossier-curtain { width: min(92%, 660px); min-height: 520px; margin-right: 4%; }
  .dossier-folder { inset: 2% 1% 0 9%; }
  .hero-ledger { grid-template-columns: 1fr 1fr; }
  .hero-ledger a:nth-child(2) { border-right: 0; }
  .hero-ledger a:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .official-bar-inner { min-height: 34px; font-size: 10px; }
  .brand strong { font-size: 22px; }
  .hero { padding-top: 52px; }
  .hero-copy h1 { font-size: clamp(40px, 12vw, 52px); line-height: 1.22; }
  .hero-copy h1 br { display: none; }
  .hero-lead { font-size: 16px; line-height: 1.85; }
  .hero-actions { align-items: stretch; }
  .button-primary { flex: 1 1 100%; }
  .button-quiet { flex: 1 1 100%; }
  .hero-official-note { grid-template-columns: 1fr; }
  .dossier-stage { min-height: 530px; }
  .dossier-folder { inset: 4% -3% 0 6%; }
  .dossier-panel, .dossier-curtain {
    width: 100%;
    min-height: 490px;
    margin: 0;
    padding: 32px 25px;
    clip-path: polygon(0 0, 84% 0, 100% 8%, 100% 100%, 0 100%);
  }
  .dossier-heading strong { font-size: 26px; }
  .dossier-list { margin-top: 28px; }
  .dossier-list > div { padding: 16px 0; grid-template-columns: 72px 1fr; gap: 12px; }
  .dossier-list dd { font-size: 13px; }
  .dossier-footnote { margin-top: 18px; }
  .hero-ledger { width: 100%; grid-template-columns: 1fr; }
  .hero-ledger a { border-right: 0; border-bottom: 1px solid var(--line); }
  .hero-ledger a:last-child { border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .dossier-curtain { display: none; }
}

.section { position: relative; padding: clamp(104px, 10vw, 156px) 0; }
.section-heading h2,
.research-heading h2,
.services-heading h2,
.official-section h2 {
  margin: 0;
  color: var(--navy);
  font-family: var(--font-display);
  font-size: clamp(38px, 4.4vw, 62px);
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.04em;
  text-wrap: balance;
}
.section-rule { width: 88px; height: 1px; margin-top: 28px; display: block; background: var(--titanium); transform-origin: left; }
.js [data-reveal] .section-rule { transform: scaleX(0.28); transition: transform 850ms var(--ease-out); }
.js [data-reveal].is-visible .section-rule { transform: scaleX(1); }

.about-section { background: var(--paper); }
.about-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(360px, 1.05fr) minmax(320px, 0.85fr);
  align-items: start;
  gap: clamp(42px, 6vw, 82px);
}
.about-copy { color: var(--ink-soft); font-size: 16px; line-height: 1.88; }
.about-copy p { max-width: 43em; margin: 0 0 22px; }
.about-copy .large-copy { margin-bottom: 30px; color: var(--ink); font-size: clamp(20px, 2vw, 26px); line-height: 1.72; font-weight: 520; }
.identity-record { padding: 30px 0 0; border-top: 1px solid var(--line-strong); }
.identity-record h3 { margin: 0 0 24px; color: var(--navy); font-size: 18px; line-height: 1.45; font-weight: 650; }
.identity-record dl { margin: 0; }
.identity-record dl div { padding: 14px 0; display: grid; grid-template-columns: 74px 1fr; gap: 14px; border-top: 1px solid var(--line); }
.identity-record dt { color: var(--muted); font-size: 11px; line-height: 1.6; }
.identity-record dd { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.6; }

.research-section { color: #fff; background: var(--navy); overflow: clip; }
.research-section::after {
  content: "";
  position: absolute;
  right: -150px;
  bottom: -300px;
  width: 640px;
  height: 640px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  pointer-events: none;
}
.research-heading { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.7fr); align-items: end; gap: 72px; }
.research-heading h2 { color: #fff; }
.research-heading p { max-width: 35em; margin: 0; color: rgba(255, 255, 255, 0.66); font-size: 15px; line-height: 1.8; }
.method-track {
  position: relative;
  z-index: 1;
  margin: clamp(74px, 8vw, 108px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  list-style: none;
}
.method-track::before,
.method-track::after {
  content: "";
  position: absolute;
  top: 24px;
  left: 24px;
  right: 0;
  height: 1px;
}
.method-track::before { background: rgba(255, 255, 255, 0.18); }
.method-track::after { background: #d5c4a8; transform: scaleX(0); transform-origin: left; transition: transform 1150ms 150ms var(--ease-out); }
.research-section.is-visible .method-track::after { transform: scaleX(1); }
.method-track li { position: relative; min-width: 0; padding-right: clamp(18px, 2.4vw, 36px); }
.method-track li > span {
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: #fff;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.method-track div { margin-top: 25px; }
.method-track strong { font-size: 17px; font-weight: 650; }
.method-track p { margin: 10px 0 0; color: rgba(255, 255, 255, 0.58); font-size: 12px; line-height: 1.72; }
.research-disclosure { margin: 72px 0 0; padding-top: 20px; color: rgba(255, 255, 255, 0.48); border-top: 1px solid rgba(255, 255, 255, 0.14); font-size: 11px; line-height: 1.7; }

.benefits-section { background: var(--paper); }
.benefits-grid { display: grid; grid-template-columns: minmax(300px, 0.72fr) minmax(520px, 1.28fr); gap: clamp(70px, 10vw, 150px); }
.benefits-intro { position: sticky; top: 144px; align-self: start; }
.benefits-intro > p { max-width: 31em; margin: 28px 0 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.benefit-list { border-top: 1px solid var(--line-strong); }
.benefit-list article {
  padding: 31px 0;
  display: grid;
  grid-template-columns: 92px minmax(180px, 0.62fr) minmax(260px, 1fr);
  align-items: baseline;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}
.access-label {
  width: fit-content;
  padding: 4px 7px;
  color: var(--titanium-deep);
  background: var(--titanium-soft);
  border-radius: 5px;
  font-size: 10px;
  font-weight: 660;
  white-space: nowrap;
}
.access-label.open { color: var(--navy); background: var(--navy-pale); }
.benefit-list h3 { margin: 0; color: var(--navy); font-size: 17px; line-height: 1.5; font-weight: 650; }
.benefit-list p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.services-section { background: var(--paper-warm); }
.services-heading { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.7fr); align-items: end; gap: 72px; }
.services-heading p { max-width: 36em; margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.82; }
.service-index { margin-top: clamp(66px, 8vw, 104px); display: grid; grid-template-columns: 1fr 1fr; column-gap: 72px; border-top: 1px solid var(--line-strong); }
.service-index > div { min-height: 96px; padding: 24px 0; display: grid; grid-template-columns: minmax(124px, 0.55fr) 1fr; align-items: baseline; gap: 20px; border-bottom: 1px solid var(--line); }
.service-index strong { color: var(--navy); font-size: 16px; font-weight: 650; }
.service-index span { color: var(--muted); font-size: 12px; line-height: 1.7; }
.service-boundary { margin-top: 58px; padding: 24px 0; display: grid; grid-template-columns: 130px 1fr; gap: 28px; border-top: 1px solid var(--titanium); border-bottom: 1px solid var(--line); }
.service-boundary strong { color: var(--titanium-deep); font-size: 12px; font-weight: 680; }
.service-boundary p { max-width: 72ch; margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.8; }

.official-section { color: #fff; background: var(--navy-deep); }
.official-grid { display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr); gap: clamp(58px, 9vw, 130px); }
.official-section h2 { max-width: 12em; color: #fff; }
.official-section h2 + p { max-width: 46em; margin: 28px 0 0; color: rgba(255, 255, 255, 0.65); font-size: 15px; line-height: 1.85; }
.official-facts { margin: 0; border-top: 1px solid rgba(255, 255, 255, 0.22); }
.official-facts div { padding: 21px 0; display: grid; grid-template-columns: 90px 1fr; gap: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.14); }
.official-facts dt { color: rgba(255, 255, 255, 0.48); font-size: 11px; }
.official-facts dd { margin: 0; color: rgba(255, 255, 255, 0.9); font-size: 14px; line-height: 1.55; }
.contact-details, .contact-fallback { grid-column: 1 / -1; margin: 0; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.contact-details h3 { margin: 0 0 18px; font-size: 14px; font-weight: 650; }
.contact-details p { margin: 8px 0; color: rgba(255, 255, 255, 0.64); font-size: 13px; }
.contact-details a { color: #fff; }
.contact-fallback { color: rgba(255, 255, 255, 0.48); font-size: 12px; }

.site-footer { color: var(--ink-soft); background: var(--paper); }
.footer-main { padding: 48px 0 36px; display: flex; align-items: flex-start; justify-content: space-between; gap: 56px; }
.footer-brand { display: grid; gap: 7px; }
.footer-brand strong { color: var(--navy); font-family: var(--font-display); font-size: 22px; letter-spacing: -0.03em; }
.footer-brand span { color: var(--muted); font-size: 10px; }
.footer-main > p { max-width: 54em; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; text-align: right; }
.footer-legal { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.record-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px; }
.record-links a:hover { color: var(--navy); }

.error-page { min-height: 100dvh; padding: 48px 24px; display: grid; place-items: center; background: var(--paper-warm); }
.error-page > div { width: min(100%, 620px); padding: 54px; background: #fff; border-top: 1px solid var(--titanium); }
.error-page > div > strong { color: var(--navy); font-size: 18px; }
.error-page h1 { margin: 38px 0 18px; color: var(--navy); font-family: var(--font-editorial); font-size: clamp(38px, 8vw, 62px); line-height: 1.2; font-weight: 600; letter-spacing: -0.035em; }
.error-page p { margin: 0 0 30px; color: var(--muted); font-size: 15px; line-height: 1.75; }

@media (max-width: 1080px) {
  .about-grid { grid-template-columns: 0.72fr 1.2fr; }
  .identity-record { grid-column: 2; }
  .benefit-list article { grid-template-columns: 88px minmax(160px, 0.6fr) 1fr; }
}

@media (max-width: 880px) {
  .section { padding: 96px 0; }
  .about-grid, .benefits-grid, .official-grid { grid-template-columns: 1fr; gap: 54px; }
  .identity-record { grid-column: auto; }
  .research-heading, .services-heading { grid-template-columns: 1fr; align-items: start; gap: 28px; }
  .method-track { grid-template-columns: 1fr; gap: 0; margin-top: 64px; }
  .method-track::before, .method-track::after { top: 24px; right: auto; bottom: 24px; left: 24px; width: 1px; height: auto; }
  .method-track::after { transform: scaleY(0); transform-origin: top; }
  .research-section.is-visible .method-track::after { transform: scaleY(1); }
  .method-track li { min-height: 126px; padding: 0 0 30px; display: grid; grid-template-columns: 48px 1fr; gap: 22px; }
  .method-track div { margin: 1px 0 0; }
  .benefits-intro { position: static; }
  .service-index { column-gap: 38px; }
  .official-section h2 { max-width: 16em; }
}

@media (max-width: 560px) {
  .section { padding: 82px 0; }
  .section-heading h2, .research-heading h2, .services-heading h2, .official-section h2 { font-size: clamp(34px, 10vw, 46px); }
  .about-grid, .benefits-grid, .official-grid { gap: 42px; }
  .about-copy .large-copy { font-size: 20px; }
  .identity-record dl div { grid-template-columns: 68px 1fr; }
  .benefit-list article { grid-template-columns: 1fr; gap: 10px; padding: 26px 0; }
  .benefit-list h3 { margin-top: 2px; }
  .service-index { grid-template-columns: 1fr; }
  .service-index > div { grid-template-columns: 118px 1fr; }
  .service-boundary { grid-template-columns: 1fr; gap: 12px; }
  .footer-main { padding-top: 38px; display: grid; gap: 22px; }
  .footer-main > p { text-align: left; }
  .footer-legal { padding: 18px 0; align-items: flex-start; flex-direction: column; }
  .record-links { justify-content: flex-start; }
  .error-page > div { padding: 38px 26px; }
}