:root {
  color-scheme: light;
  --ink: #263043;
  --ink-soft: #566074;
  --violet: #38204f;
  --violet-deep: #21172e;
  --violet-soft: #8b79a1;
  --coral: #d46a73;
  --coral-light: #f0babd;
  --pearl: #fbf8f3;
  --paper: #fffdf9;
  --mist: #eeebf0;
  --line: rgba(38, 48, 67, .18);
  --light-line: rgba(255, 255, 255, .18);
  --shell: min(1480px, calc(100% - 72px));
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--pearl);
  font-family: var(--sans);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;
}

body.nav-open { overflow: hidden; }

img {
  display: block;
  max-width: 100%;
}

p, h1, h2, h3, dl, dd, ol, ul, figure { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
section { scroll-margin-top: 112px; }

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.announcement {
  color: #fff;
  background: #12101a;
  font-size: 11px;
  letter-spacing: .11em;
}

.announcement-inner {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.announcement p { margin: 0; }
.announcement span { margin-right: 12px; color: var(--coral-light); font-weight: 800; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  color: #fff;
  background: rgba(33, 23, 46, .97);
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(18px);
}

.header-main {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.brand-symbol {
  position: relative;
  width: 42px;
  height: 42px;
  display: block;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 50%;
}

.brand-symbol::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid var(--coral-light);
  border-radius: 50%;
}

.brand-symbol i {
  position: absolute;
  z-index: 1;
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
}

.brand-symbol i:nth-child(1) { left: 6px; top: 17px; }
.brand-symbol i:nth-child(2) { right: 6px; top: 17px; }
.brand-symbol i:nth-child(3) { left: 17px; bottom: 5px; background: var(--coral-light); }

.brand-copy { display: grid; line-height: 1.1; }
.brand-copy strong { color: #fff; font-size: 19px; letter-spacing: .15em; }
.brand-copy small { margin-top: 6px; color: #aaa2b1; font-size: 8px; letter-spacing: .22em; }

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(13px, 1.45vw, 26px);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.primary-nav a {
  position: relative;
  padding: 29px 0 26px;
  color: #c9c3cf;
  text-decoration: none;
}

.primary-nav a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 19px;
  width: 0;
  height: 1px;
  background: var(--coral-light);
  transition: width .2s ease;
}

.primary-nav a:hover,
.primary-nav a[aria-current="page"] { color: #fff; }
.primary-nav a:hover::before,
.primary-nav a[aria-current="page"]::before { width: 100%; }
.primary-nav a:focus-visible,
.nav-toggle:focus-visible,
summary:focus-visible { outline: 3px solid var(--coral-light); outline-offset: 4px; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  font: inherit;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  width: 18px;
  height: 1px;
  display: block;
  background: currentColor;
}

.nav-toggle-icon { position: relative; }
.nav-toggle-icon::before,
.nav-toggle-icon::after { content: ""; position: absolute; left: 0; }
.nav-toggle-icon::before { top: -5px; }
.nav-toggle-icon::after { top: 5px; }

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--violet-deep);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 62%;
  width: 1px;
  background: rgba(255,255,255,.12);
}

.hero-layout {
  min-height: 870px;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: minmax(500px, 1fr) auto auto;
  column-gap: 24px;
  padding: 72px 0 38px;
}

.hero-center {
  grid-column: 1 / 8;
  grid-row: 1;
  align-self: center;
  padding: 36px 30px 42px 0;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  color: #c7bfce;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .2em;
}

.hero-status span {
  width: 32px;
  height: 1px;
  background: var(--coral-light);
}

.hero-brand-line {
  margin: 0 0 18px;
  color: var(--coral-light);
  font: 600 clamp(22px, 2vw, 30px)/1 var(--serif);
  letter-spacing: .08em;
}

h1 {
  max-width: 900px;
  margin-bottom: 30px;
  color: #fff;
  font-family: var(--serif);
  font-size: clamp(58px, 6.3vw, 94px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.055em;
}

h1 em {
  display: block;
  margin-top: 20px;
  color: #f1c2c5;
  font-size: .39em;
  font-style: normal;
  letter-spacing: .03em;
  line-height: 1.35;
}

.hero-tagline {
  margin-bottom: 15px;
  color: #fff;
  font-family: var(--serif);
  font-size: clamp(19px, 1.65vw, 27px);
}

.hero-summary {
  max-width: 760px;
  margin: 0;
  color: #bdb6c4;
  font-size: 14px;
}

.hero-photo {
  position: relative;
  grid-column: 9 / 13;
  grid-row: 1 / 3;
  align-self: stretch;
  min-height: 650px;
  margin: 0;
  overflow: hidden;
  background: #17121e;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent 55%, rgba(20,14,27,.78));
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.78) contrast(1.04);
}

.hero-photo figcaption {
  position: absolute;
  z-index: 1;
  left: 24px;
  right: 24px;
  bottom: 22px;
  margin: 0;
  color: rgba(255,255,255,.78);
  font-size: 10px;
  line-height: 1.6;
}

.hero-photo figcaption span {
  display: block;
  margin-bottom: 5px;
  color: var(--coral-light);
  font-weight: 800;
  letter-spacing: .16em;
}

.hero-notes {
  grid-column: 1 / 8;
  grid-row: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--light-line);
  border-bottom: 1px solid var(--light-line);
}

.hero-notes article {
  padding: 20px 22px;
  border-right: 1px solid var(--light-line);
}

.hero-notes article:first-child { padding-left: 0; }
.hero-notes article:last-child { border-right: 0; }
.hero-notes span { color: var(--coral-light); font-size: 9px; font-weight: 800; }
.hero-notes h2 { margin: 5px 0 2px; color: #fff; font-family: var(--serif); font-size: 17px; }
.hero-notes p { margin: 0; color: #9d96a5; font-size: 10px; }

.hero-track {
  grid-column: 1 / 13;
  grid-row: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 38px;
  border-top: 1px solid var(--light-line);
}

.hero-track > div {
  min-height: 110px;
  padding: 21px 24px 0;
  border-right: 1px solid var(--light-line);
}

.hero-track > div:first-child { padding-left: 0; }
.hero-track > div:last-child { border-right: 0; }
.hero-track span { color: var(--coral-light); font-size: 9px; font-weight: 800; }
.hero-track strong { display: block; margin: 3px 0; color: #fff; font-family: var(--serif); font-size: 19px; }
.hero-track p { margin: 0; color: #9993a0; font-size: 11px; }

.section-pad { padding: 118px 0; }

.micro-label,
.eyebrow {
  margin-bottom: 16px;
  color: var(--coral);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
}

.section-marker { padding-top: 6px; }
.section-marker span { display: block; color: var(--coral); font: 48px/1 Georgia, serif; }
.section-marker p { margin: 12px 0 0; color: #858b98; font-size: 8px; font-weight: 800; letter-spacing: .18em; }
.section-marker.light p { color: #b7b1bb; }

.positioning { background: var(--paper); }
.positioning-grid { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 90px; }
.positioning-copy > h2,
.section-heading h2,
.topics-intro h2,
.app-title-block h2,
.faq-heading h2,
.about-brand h2,
.safety-intro h2 {
  margin-bottom: 26px;
  color: var(--violet-deep);
  font-family: var(--serif);
  font-size: clamp(38px, 4.2vw, 66px);
  font-weight: 600;
  line-height: 1.13;
  letter-spacing: -.04em;
}

.lead {
  max-width: 1020px;
  margin-bottom: 58px;
  color: var(--ink-soft);
  font-size: 18px;
}

.principle-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle-row article {
  min-height: 250px;
  padding: 34px 38px;
  border-right: 1px solid var(--line);
}

.principle-row article:first-child { padding-left: 0; }
.principle-row article:last-child { border-right: 0; }
.principle-row span { color: var(--coral); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.principle-row h3 { margin: 50px 0 12px; font-family: var(--serif); font-size: 27px; }
.principle-row p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.content-plaza { color: var(--ink); background: #ece8ec; }
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(290px, .75fr);
  gap: 90px;
  align-items: end;
  margin-bottom: 54px;
}

.section-heading > p { margin-bottom: 4px; color: var(--ink-soft); }
.section-heading.inverse h2 { color: var(--violet-deep); }
.section-heading.inverse > p { color: var(--ink-soft); }
.section-heading.compact { margin-bottom: 42px; }

.editorial-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 22px;
}

.editorial-photo {
  position: relative;
  grid-column: 1 / 7;
  grid-row: 1 / 3;
  min-height: 640px;
  margin: 0;
  overflow: hidden;
  background: #d4cfd6;
}

.editorial-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.68) contrast(1.04);
}

.editorial-photo figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 20px;
  color: rgba(255,255,255,.86);
  background: rgba(25,22,30,.75);
  font-size: 10px;
}

.editorial-grid article {
  border-top: 1px solid var(--line);
}

.card-index { color: var(--coral); font-size: 9px; font-weight: 800; letter-spacing: .18em; }
.editorial-feature {
  grid-column: 7 / 13;
  grid-row: 1;
  min-height: 340px;
  padding: 34px 0 30px 35px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.editorial-feature h3 {
  max-width: 690px;
  margin: 16px 0;
  color: var(--violet-deep);
  font-family: var(--serif);
  font-size: clamp(33px, 3.1vw, 50px);
  line-height: 1.2;
}

.editorial-feature p:last-child { margin: 0; color: var(--ink-soft); }
.topic-pill { color: var(--violet); font-size: 11px; font-weight: 800; }
.editorial-note { grid-column: span 3; min-height: 280px; padding: 28px 0 0 35px; }
.editorial-note h3 { margin: 52px 0 11px; color: var(--violet-deep); font-family: var(--serif); font-size: 23px; }
.editorial-note p:last-child { margin: 0; color: var(--ink-soft); font-size: 13px; }
.editorial-note.coral { padding-right: 26px; background: var(--coral-light); border-top-color: transparent; }
.editorial-note.coral .card-index { color: #813e48; }
.editorial-wide {
  grid-column: 7 / 13;
  min-height: 230px;
  padding: 28px 0 0 35px;
  display: grid;
  grid-template-columns: .35fr 1fr .8fr;
  gap: 25px;
  align-items: start;
}

.editorial-wide h3 { margin-bottom: 10px; font-family: var(--serif); font-size: 25px; }
.editorial-wide div > p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.editorial-wide dl { margin-bottom: 0; }
.editorial-wide dl div { padding: 8px 0; border-top: 1px solid var(--line); }
.editorial-wide dt { color: var(--coral); font-size: 10px; }
.editorial-wide dd { margin: 2px 0 0; font-size: 12px; }

.topics { color: #fff; background: var(--violet); }
.topics-layout { display: grid; grid-template-columns: minmax(300px, .7fr) minmax(0, 1.3fr); gap: 100px; }
.topics-intro { position: sticky; top: 130px; align-self: start; }
.topics-intro h2 { color: #fff; }
.topics-intro > p:not(.eyebrow) { max-width: 520px; color: #d1c9d8; }
.index-seal { width: 148px; height: 148px; margin-top: 54px; display: grid; place-items: center; align-content: center; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; }
.index-seal span { color: var(--coral-light); font: 48px/1 Georgia, serif; }
.index-seal p { margin: 8px 0 0; color: #c3bbc9; font-size: 8px; letter-spacing: .18em; }
.topic-index { border-top: 1px solid var(--light-line); }
.topic-index article { display: grid; grid-template-columns: 58px minmax(0,1fr) 120px; gap: 24px; align-items: center; min-height: 128px; padding: 24px 0; border-bottom: 1px solid var(--light-line); }
.topic-index article > span { color: var(--coral-light); font: 17px Georgia, serif; }
.topic-index h3 { margin-bottom: 4px; color: #fff; font-family: var(--serif); font-size: 24px; }
.topic-index p { margin: 0; color: #cec7d3; font-size: 13px; }
.topic-index b { color: #e5c8ca; font-size: 10px; text-align: right; letter-spacing: .08em; }

.updates { background: var(--paper); }
.updates-grid { display: grid; grid-template-columns: 140px minmax(0,1fr); gap: 90px; }
.updates .section-heading.inverse h2 { color: var(--violet-deep); }
.updates .section-heading.inverse > p { color: var(--ink-soft); }
.release-protocol { counter-reset: release; border-top: 1px solid var(--line); }
.release-protocol article { display: grid; grid-template-columns: 80px 220px 1fr; gap: 30px; align-items: center; min-height: 120px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.release-protocol span { color: var(--coral); font: 18px Georgia, serif; }
.release-protocol h3 { margin: 0; color: var(--violet-deep); font-family: var(--serif); font-size: 23px; }
.release-protocol p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.guide { background: #e8e6e5; }
.guide-flow { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guide-flow article { min-height: 300px; padding: 32px; border-right: 1px solid var(--line); }
.guide-flow article:first-child { padding-left: 0; }
.guide-flow article:last-child { border-right: 0; }
.guide-flow .step { color: var(--coral); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.guide-flow h3 { margin: 82px 0 13px; color: var(--violet-deep); font-family: var(--serif); font-size: 27px; }
.guide-flow p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.feature-boundary { margin-top: 22px; padding: 30px 36px; display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; align-items: center; color: #fff; background: var(--coral); }
.feature-boundary .micro-label { color: #ffe5e6; }
.feature-boundary h3 { margin: 0; font-family: var(--serif); font-size: 25px; }
.feature-boundary > p { margin: 0; color: #fff3f3; }

.safety { color: #fff; background: #171923; }
.safety-layout { display: grid; grid-template-columns: minmax(300px,.72fr) minmax(0,1.28fr); gap: 100px; }
.safety-intro h2 { color: #fff; }
.safety-intro > p:not(.eyebrow) { color: #c0c2ca; }
.safety-notice { margin-top: 40px; padding: 26px; border: 1px solid var(--light-line); }
.safety-notice strong { display: block; margin-bottom: 8px; color: var(--coral-light); }
.safety-notice p { margin: 0; color: #babcc4; font-size: 12px; }
.safety-matrix { border-top: 1px solid var(--light-line); }
.safety-matrix article { min-height: 142px; padding: 25px 0; display: grid; grid-template-columns: 62px 1fr; gap: 22px; border-bottom: 1px solid var(--light-line); }
.safety-matrix span { color: var(--coral-light); font: 15px Georgia, serif; }
.safety-matrix h3 { margin-bottom: 8px; color: #fff; font-family: var(--serif); font-size: 22px; }
.safety-matrix p { margin: 0; color: #b8bac3; font-size: 13px; }

.app-guide { background: var(--pearl); }
.app-layout { display: grid; grid-template-columns: minmax(300px,.68fr) minmax(0,1.32fr); gap: 100px; }
.app-title-block > p:last-child { color: var(--ink-soft); }
.access-ledger { border-top: 1px solid var(--line); }
.access-ledger article { min-height: 148px; display: grid; grid-template-columns: 72px minmax(0,1fr) 130px; gap: 28px; align-items: center; padding: 22px 0; border-bottom: 1px solid var(--line); }
.access-ledger article > span { color: var(--coral); font: 16px Georgia, serif; }
.access-ledger h3 { margin-bottom: 6px; color: var(--violet-deep); font-family: var(--serif); font-size: 23px; }
.access-ledger p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.access-ledger strong { color: var(--violet); font-size: 10px; text-align: right; }

.faq { background: #e5e1e7; }
.faq-layout { display: grid; grid-template-columns: minmax(300px,.64fr) minmax(0,1.36fr); gap: 100px; }
.faq-heading > p:last-child { color: var(--ink-soft); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 27px 55px 27px 0; cursor: pointer; list-style: none; color: var(--violet-deep); font-family: var(--serif); font-size: 20px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 8px; top: 24px; color: var(--coral); font: 25px/1 Georgia,serif; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -3px 50px 25px 0; color: var(--ink-soft); font-size: 13px; }

.about { color: #fff; background: var(--violet-deep); }
.about-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 38px 100px; }
.about-brand h2 { color: #fff; }
.about-brand > p:last-child { color: #c1bac7; }
.profile-ledger { margin-bottom: 0; border-top: 1px solid var(--light-line); }
.profile-ledger div { display: grid; grid-template-columns: 140px 1fr; gap: 30px; padding: 18px 0; border-bottom: 1px solid var(--light-line); }
.profile-ledger dt { color: #9e97a5; font-size: 11px; }
.profile-ledger dd { margin: 0; }
.community-code { grid-column: 1 / -1; margin-top: 30px; padding: 38px 0 0; display: grid; grid-template-columns: .62fr 1.38fr; gap: 80px; border-top: 1px solid var(--light-line); }
.community-code h3 { margin: 0; font-family: var(--serif); font-size: 27px; }
.community-code ul { margin: 0; padding-left: 20px; color: #c9c2ce; }
.community-code li + li { margin-top: 8px; }

.site-footer { color: #d5d0d8; background: #100c15; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,.7fr); gap: 50px; padding: 62px 0; }
.footer-brand > p { max-width: 420px; margin: 24px 0 0; color: #8f8994; font-size: 12px; }
.footer-column h2 { margin-bottom: 17px; color: #fff; font-family: var(--serif); font-size: 17px; }
.footer-column p { margin: 7px 0; color: #918b96; font-size: 11px; }
.footer-bottom { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid rgba(255,255,255,.11); }
.footer-bottom p { margin: 0; color: #706b74; font-size: 10px; }

@media (max-width: 1180px) {
  :root { --shell: min(100% - 44px, 1160px); }
  .announcement { display: none; }
  .header-main { min-height: 74px; }
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: fixed;
    inset: 74px 0 auto;
    max-height: calc(100vh - 74px);
    padding: 24px max(22px, calc((100vw - 1040px) / 2));
    display: none;
    align-items: stretch;
    overflow-y: auto;
    background: var(--violet-deep);
    border-top: 1px solid rgba(255,255,255,.12);
  }
  .primary-nav.is-open { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .primary-nav a { padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .primary-nav a::before { display: none; }
  .hero-layout { grid-template-rows: minmax(470px,1fr) auto auto; }
  .hero-center { grid-column: 1 / 8; }
  .hero-photo { grid-column: 9 / 13; min-height: 610px; }
  .positioning-grid, .updates-grid { grid-template-columns: 100px 1fr; gap: 52px; }
  .topics-layout, .safety-layout, .app-layout, .faq-layout { gap: 58px; }
  .editorial-photo { grid-column: 1 / 6; }
  .editorial-feature, .editorial-wide { grid-column: 6 / 13; }
  .editorial-note { grid-column: span 3; }
}

@media (max-width: 900px) {
  .hero::before { display: none; }
  .hero-layout { min-height: auto; grid-template-rows: auto auto auto auto; gap: 32px; padding-top: 58px; }
  .hero-center { grid-column: 1 / 8; grid-row: 1; align-self: center; }
  .hero-photo { grid-column: 8 / 13; grid-row: 1 / 3; min-height: 620px; }
  .hero-notes { grid-column: 1 / 8; grid-row: 2; }
  .hero-track { grid-row: 3; }
  .section-pad { padding: 86px 0; }
  .positioning-grid, .updates-grid { grid-template-columns: 1fr; gap: 26px; }
  .section-marker { display: flex; align-items: end; gap: 16px; }
  .section-marker p { margin-bottom: 4px; }
  .principle-row { grid-template-columns: 1fr; }
  .principle-row article { min-height: auto; padding: 30px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-row article:last-child { border-bottom: 0; }
  .principle-row h3 { margin-top: 26px; }
  .section-heading { grid-template-columns: 1fr; gap: 16px; }
  .editorial-photo { grid-column: 1 / 13; grid-row: 1; min-height: 500px; }
  .editorial-feature { grid-column: 1 / 13; grid-row: auto; padding-left: 0; }
  .editorial-note { grid-column: span 6; padding-left: 0; }
  .editorial-note.coral { padding-left: 24px; }
  .editorial-wide { grid-column: 1 / 13; padding-left: 0; }
  .topics-layout, .safety-layout, .app-layout, .faq-layout, .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .topics-intro { position: static; }
  .index-seal { display: none; }
  .guide-flow { grid-template-columns: 1fr; }
  .guide-flow article { min-height: auto; padding: 30px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .guide-flow article:last-child { border-bottom: 0; }
  .guide-flow h3 { margin-top: 38px; }
  .feature-boundary { grid-template-columns: 1fr; gap: 18px; }
  .community-code { grid-template-columns: 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  :root { --shell: calc(100% - 28px); }
  html { scroll-padding-top: 68px; }
  section { scroll-margin-top: 68px; }
  .header-main { min-height: 68px; }
  .brand-symbol { width: 36px; height: 36px; }
  .brand-symbol i:nth-child(1) { left: 5px; top: 14px; }
  .brand-symbol i:nth-child(2) { right: 5px; top: 14px; }
  .brand-symbol i:nth-child(3) { left: 14px; bottom: 4px; }
  .brand-copy strong { font-size: 17px; }
  .brand-copy small { font-size: 7px; }
  .nav-toggle-label { display: none; }
  .primary-nav { inset: 68px 0 auto; max-height: calc(100vh - 68px); grid-template-columns: 1fr !important; padding: 18px 20px; }
  .hero-layout { display: flex; flex-direction: column; gap: 26px; padding: 44px 0 28px; }
  .hero-center { padding: 0; }
  h1 { font-size: clamp(48px,14vw,66px); }
  h1 em { font-size: .39em; }
  .hero-photo { width: 100%; min-height: 0; aspect-ratio: 4 / 5; }
  .hero-notes { width: 100%; grid-template-columns: 1fr; }
  .hero-notes article { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--light-line); }
  .hero-notes article:last-child { border-bottom: 0; }
  .hero-track { width: 100%; grid-template-columns: 1fr 1fr; margin-top: 0; }
  .hero-track > div { min-height: 100px; padding: 16px; }
  .hero-track > div:first-child { padding-left: 16px; }
  .hero-track > div:nth-child(2) { border-right: 0; }
  .hero-track > div:nth-child(-n+2) { border-bottom: 1px solid var(--light-line); }
  .section-pad { padding: 68px 0; }
  .positioning-copy > h2, .section-heading h2, .topics-intro h2, .app-title-block h2, .faq-heading h2, .about-brand h2, .safety-intro h2 { font-size: clamp(35px,10vw,47px); }
  .lead { font-size: 16px; }
  .editorial-photo { min-height: 0; aspect-ratio: 3 / 2; }
  .editorial-feature { min-height: 390px; }
  .editorial-note { grid-column: 1 / 13; min-height: auto; padding: 26px 0; }
  .editorial-note.coral { padding: 26px 20px; }
  .editorial-note h3 { margin-top: 38px; }
  .editorial-wide { grid-template-columns: 1fr; padding: 28px 0; }
  .topic-index article { grid-template-columns: 42px 1fr; gap: 14px; }
  .topic-index b { grid-column: 2; text-align: left; }
  .release-protocol article { grid-template-columns: 44px 1fr; gap: 14px; }
  .release-protocol p { grid-column: 2; }
  .feature-boundary { padding: 26px 22px; }
  .access-ledger article { grid-template-columns: 48px 1fr; gap: 14px; }
  .access-ledger strong { grid-column: 2; text-align: left; }
  .faq-list summary { font-size: 18px; }
  .profile-ledger div { grid-template-columns: 1fr; gap: 4px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { padding: 18px 0; flex-direction: column; align-items: flex-start; gap: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}