@font-face {
  font-family: "LifeMap Serif";
  src: url("assets/production-serif.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

:root {
  color-scheme: light;
  --ink: #30271f;
  --body: #51463b;
  --muted: #806f61;
  --line: #d8c8b6;
  --rust: #ad6238;
  --gold: #c2955a;
  --paper: #f8f3e9;
  --paper-light: #fcf9f3;
  --brown: #30251d;
  --serif: "LifeMap Serif", "Noto Serif SC", "SimSun", serif;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #ded5c8;
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.page-shell {
  width: 390px;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 16px 60px #44372c22;
}
.content-container {
  width: 100%;
  padding-left: 25px;
  padding-right: 25px;
}
.site-header {
  position: relative;
  z-index: 5;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 25px;
  background: #f7f0e4;
  border-bottom: 1px solid #d9cbbb;
}
.site-header__brand {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .035em;
  text-decoration: none;
  white-space: nowrap;
}
.site-header__actions {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
}
.site-header__actions a { text-decoration: none; }
.eyebrow {
  margin: 0 0 19px;
  color: var(--rust);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .09em;
}
.page-title, .section-title, h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -.035em;
}
.section-title {
  margin: 0;
  font-size: 29px;
  line-height: 1.47;
}
.lead, .body-copy { color: var(--body); }

/* 01 — the source environment is one continuous scene. */
.home-hero {
  position: relative;
  min-height: 956px;
  overflow: hidden;
  background: #fcf8f0;
}
.home-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 105px;
  background: linear-gradient(transparent, var(--paper));
  pointer-events: none;
}
.home-hero .content-container { padding-top: 53px; }
.home-hero__copy { position: relative; z-index: 2; }
.home-hero__title {
  margin: 0;
  font-size: 29px;
  line-height: 1.34;
}
.home-hero__title-segment { display: block; white-space: nowrap; }
.home-hero__lead {
  margin: 25px 0 0;
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: .005em;
}
.home-hero .home-actions {
  position: absolute;
  top: 618px;
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 13px;
  margin-top: 0;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 51px;
  padding: 0 26px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .09em;
}
.button--primary {
  min-width: 166px;
  color: #f9f2e7;
  background: var(--brown);
  border: 1px solid var(--brown);
  border-radius: 2px;
}
.button--quiet {
  min-height: 28px;
  padding: 0 0 3px;
  color: #925537;
  border-bottom: 1px solid #c9a780;
  font-size: 13px;
  letter-spacing: .01em;
}
.home-hero__scene {
  position: absolute;
  z-index: 1;
  inset: 310px 0 0;
  pointer-events: none;
}
.home-hero__master {
  position: absolute;
  display: block;
  top: 24px;
  left: -361px;
  width: 770px;
  max-width: none;
  height: auto;
  mix-blend-mode: multiply;
  -webkit-mask-image: radial-gradient(ellipse 74% 63% at 60% 55%, #000 71%, transparent 100%);
  mask-image: radial-gradient(ellipse 74% 63% at 60% 55%, #000 71%, transparent 100%);
}
.home-hero__orientation {
  position: absolute;
  top: 220px;
  left: 26px;
  margin: 0;
  color: #8d6343;
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: .06em;
}
.home-hero__orientation span { display: block; }
.home-hero__orientation-gap { margin-top: 12px; }

/* 02 — recognisable life situations, printed as a reading sequence. */
#fit {
  padding: 85px 0 91px;
  background: var(--paper);
}
#fit .section-title { max-width: 330px; }
#fit .section-title span { display: block; }
#fit .section-title span:first-child { font-size: 32px; }
#fit .section-title span:last-child { color: #ad6238; }
.home-fit-list {
  list-style: none;
  margin: 35px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.home-fit-list li {
  padding: 19px 1px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--body);
  font-size: 16px;
  line-height: 1.88;
}
.home-fit-list__open {
  margin-top: 23px;
  border-top: 1px solid var(--line);
  border-bottom: 0 !important;
  color: var(--ink) !important;
  font-family: var(--serif);
  font-size: 18px !important;
}

/* 03 — method, ordered without cards. */
#research-approach {
  padding: 91px 0 109px;
  background: var(--paper-light);
}
#research-approach .section-title span { display: block; }
#research-approach .section-title span:last-child { color: #8c5639; }
.home-approach__lead {
  margin: 33px 0 47px;
  font-size: 16px;
  line-height: 1.9;
}
.home-approach__lead span { display: block; }
.home-approach__lead-opening {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.7;
}
.home-approach__lead-detail { margin-top: 19px; }
.home-method { padding-left: 1px; }
.home-method__item {
  display: grid;
  grid-template-columns: 27px 1fr;
  column-gap: 18px;
  padding: 0;
}
.home-method__item + .home-method__item { margin-top: 35px; }
.home-method__index {
  grid-row: 1 / span 2;
  margin-top: 5px;
  color: var(--rust);
  font-family: var(--serif);
  font-size: 14px;
}
.home-method h3 {
  margin: 0 0 7px;
  font-size: 22px;
  line-height: 1.35;
}
.home-method p {
  margin: 0;
  color: var(--body);
  font-size: 15px;
  line-height: 1.75;
}
.home-decision-check {
  margin-top: 57px;
  padding-top: 26px;
  border-top: 1px solid #bda286;
}
.home-decision-check strong {
  color: var(--rust);
  font-size: 13px;
  letter-spacing: .04em;
}
.home-decision-check p {
  margin: 13px 0 0;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.8;
}

/* 04 — explicit second coordinate, followed by the tree / guide / Beidou scene. */
.home-coordinate {
  padding-top: 87px;
  color: #f7ede0;
  background: var(--brown);
}
.home-coordinate .eyebrow { color: #d8ad79; }
.home-coordinate .section-title {
  color: #f3e8d8;
  font-size: 40px;
  line-height: 1.36;
}
.home-coordinate__disclosure {
  margin: 14px 0 0;
  color: #ddbea0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
}
.home-coordinate__body {
  margin: 38px 0 0;
  padding-top: 22px;
  border-top: 1px solid #80664f;
  color: #e9ddd1;
  font-size: 16px;
  line-height: 1.9;
}
.home-coordinate__body p { margin: 0; }
.home-coordinate__body p + p { margin-top: 17px; }
.home-coordinate__body p:last-child { color: #efcfab; }
.home-coordinate__scene {
  position: relative;
  width: 390px;
  height: 585px;
  margin-top: 48px;
  margin-left: -25px;
  overflow: hidden;
  background: var(--paper);
}
.home-coordinate__scene::before,
.home-coordinate__scene::after {
  content: "";
  position: absolute;
  z-index: 1;
  left: 0;
  right: 0;
  height: 40px;
  pointer-events: none;
}
.home-coordinate__scene::before {
  top: 0;
  background: linear-gradient(var(--brown), transparent);
}
.home-coordinate__scene::after {
  bottom: 0;
  background: linear-gradient(transparent, var(--paper));
}
.home-coordinate__master {
  position: absolute;
  display: block;
  width: 390px;
  max-width: none;
  height: auto;
  top: 0;
  left: 0;
}

/* 05 — one continuous trust, handoff, boundary, and invitation chapter. */
.home-trust {
  padding: 99px 0 127px;
  background: linear-gradient(180deg, #eee3d3 0%, #f4ecdf 48%, #f8f3e9 100%);
}
.home-trust .section-title { font-size: 36px; }
.home-trust__statement {
  margin: 39px 0 0;
  color: #6f523f;
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.75;
}
.home-trust__handoff { margin-top: 91px; }
.home-trust__handoff p {
  margin: 0;
  color: #45382e;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.84;
}
.home-trust__handoff p + p { margin-top: 43px; }
.home-trust__privacy {
  margin: 92px 0 0;
  color: #775f4b;
  font-size: 15px;
  line-height: 1.95;
}
.home-trust__invitation { margin-top: 105px; }
.home-trust__invitation-title {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.55;
}
.home-trust__invitation-body {
  margin: 20px 0 0;
  max-width: 318px;
  color: #615347;
  font-size: 16px;
  line-height: 1.85;
}
.home-trust__invitation .button { margin-top: 37px; }

/* 06 — three editorial movements, closing quietly. */
#closing {
  padding: 118px 0 159px;
  border-top: 1px solid #d8c8b5;
  background: #f0e7da;
}
.home-closing__prose { margin-top: 95px; }
.home-closing__stanza {
  margin: 0;
  color: #514338;
  font-family: var(--serif);
  line-height: 1.92;
}
.home-closing__arc--fate .home-closing__stanza {
  color: #3f3026;
  font-size: 23px;
}
.home-closing__arc--fate .home-closing__stanza + .home-closing__stanza { margin-top: 72px; }
.home-closing__arc--reflection {
  margin-top: 133px;
  margin-left: 19px;
}
.home-closing__arc--reflection .home-closing__stanza { font-size: 19px; }
.home-closing__arc--reflection .home-closing__stanza + .home-closing__stanza { margin-top: 59px; }
.home-closing__arc--vow {
  margin-top: 131px;
  padding-top: 49px;
  border-top: 1px solid #cbb8a2;
}
.home-closing__arc--vow .home-closing__stanza {
  color: #77523b;
  font-size: 18px;
}
.home-closing__arc--vow .home-closing__stanza + .home-closing__stanza { margin-top: 58px; }
.site-footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 33px 25px 47px;
  background: #eee3d3;
  border-top: 1px solid #d4c3ae;
  color: #8a7460;
  font-size: 12px;
  letter-spacing: .03em;
}

@media (max-width: 389px) {
  .page-shell { width: 100%; }
}