@layer foundation, frame, reading, interaction, responsive;

@layer foundation {
  :root { --lr15-paper: #f5f7f7; --lr15-ink: #232729; --lr15-muted: #535f5d; --lr15-signal: #a83a45; --lr15-green: #17675f; --lr15-line: #ccd5d1; --lr15-wash: #e7eeeb; --lr15-yellow: #f1dd7c; --lr15-measure: 1248px; --lr15-edge: max(48px, calc((100% - 1248px) / 2)); color-scheme: light; }
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 28px; }
  body { margin: 0; background: var(--lr15-paper); color: var(--lr15-ink); font-family: "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif; font-size: 17px; line-height: 1.8; letter-spacing: 0; }
  h1, h2, h3, p, figure, dl, dd { margin: 0; }
  h1, h2 { font-family: "Songti SC", "STSong", "SimSun", "Georgia", serif; font-weight: 600; line-height: 1.45; text-wrap: pretty; }
  h3 { font-size: 19px; line-height: 1.6; }
  a { color: var(--lr15-green); text-underline-offset: 5px; text-decoration-thickness: 1px; overflow-wrap: anywhere; }
  a:hover { color: var(--lr15-signal); }
  img { display: block; max-width: 100%; height: auto; }
  button, a, summary { -webkit-tap-highlight-color: transparent; }
  :focus-visible { outline: 3px solid var(--lr15-signal); outline-offset: 5px; }
  ::selection { color: #232729; background: var(--lr15-yellow); }
  [id] { scroll-margin-top: 28px; }
  .lr15-glyph { width: 22px; height: 22px; flex: 0 0 22px; vertical-align: middle; }
  .lr15-kicker { font-size: 12px; line-height: 1.6; font-weight: 700; color: var(--lr15-green); }
  .lr15-skip { position: fixed; inset: 8px auto auto 8px; padding: 12px 20px; transform: translateY(-150%); background: #fff; z-index: 10; }
  .lr15-skip:focus { transform: none; }
}

@layer frame {
  .lr15-nameplate { padding: 22px var(--lr15-edge); display: flex; align-items: center; justify-content: space-between; gap: 32px; }
  .lr15-nameplate__brand { color: var(--lr15-ink); text-decoration: none; display: flex; align-items: center; gap: 13px; flex-shrink: 0; }
  .lr15-nameplate__brand > span { display: grid; gap: 0; }
  .lr15-nameplate__brand strong { font-family: "Songti SC", "SimSun", serif; font-size: 24px; }
  .lr15-nameplate__brand span span { color: var(--lr15-muted); font-size: 10px; font-weight: 600; }
  .lr15-nameplate__brand img { width: 46px; height: 46px; }
  .lr15-nameplate__routes ul { display: flex; gap: 30px; padding: 0; margin: 0; list-style: none; }
  .lr15-nameplate__routes a { display: block; position: relative; padding: 12px 0; text-decoration: none; font-size: 14px; color: var(--lr15-ink); white-space: nowrap; }
  .lr15-nameplate__routes a[aria-current] { color: var(--lr15-green); font-weight: 700; }
  .lr15-nameplate__actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
  .lr15-nameplate__action { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 6px 12px; border: 1px solid var(--lr15-green); border-radius: 2px; background: var(--lr15-green); color: #fff; font-size: 12px; font-weight: 700; line-height: 1.4; text-decoration: none; white-space: nowrap; }
  .lr15-nameplate__action--telegram { background: transparent; color: var(--lr15-green); }
  .lr15-nameplate__action:hover { background: var(--lr15-signal); border-color: var(--lr15-signal); color: #fff; }
  .lr15-nameplate__locale { display: grid; text-align: right; font-size: 10px; line-height: 1.8; font-weight: 700; }
  .lr15-nameplate__locale span { color: var(--lr15-muted); font-weight: 400; }
  .lr15-frontage { position: relative; isolation: isolate; color: #fff; min-height: min(66svh, 600px); display: grid; align-items: center; background: #35433d; }
  .lr15-frontage__scene { position: absolute; inset: 0; }
  .lr15-frontage__scene > img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: 50% 45%; }
  .lr15-frontage::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgb(13 23 19 / 80%), rgb(13 23 19 / 40%) 52%, rgb(13 23 19 / 5%) 80%), linear-gradient(0deg, rgb(13 23 19 / 70%), transparent 30%); }
  .lr15-frontage__words { width: 100%; padding: 62px var(--lr15-edge) 100px; }
  .lr15-frontage__eyebrow { font-size: 12px; line-height: 1.6; font-weight: 600; margin-bottom: 24px; }
  .lr15-frontage h1 { max-width: 740px; font-size: 50px; line-height: 1.32; text-shadow: 0 1px 12px rgb(0 0 0 / 20%); }
  .lr15-frontage__deck { max-width: 470px; font-size: 16px; margin-top: 24px; }
  .lr15-route-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 40px; padding: 12px 18px; min-height: 48px; text-decoration: none; font-size: 14px; font-weight: 600; }
  .lr15-route-link--light { background: var(--lr15-paper); color: var(--lr15-ink); margin-top: 30px; border-radius: 2px; }
  .lr15-frontage__caption { position: absolute; bottom: 25px; right: var(--lr15-edge); display: grid; text-align: right; gap: 4px; font-size: 11px; line-height: 1.5; max-width: 310px; z-index: 1; }
  .lr15-frontage__caption span { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
  .lr15-frontage__caption .lr15-glyph { width: 14px; height: 14px; flex-basis: 14px; }
  .lr15-frontage__caption a { color: #fff; text-decoration: none; }
  .lr15-frontage__folio { position: absolute; bottom: 25px; left: var(--lr15-edge); font-size: 12px; }
  .lr15-survey { display: flex; justify-content: space-between; align-items: center; max-width: var(--lr15-measure); margin-inline: var(--lr15-edge); padding: 30px 0; border-bottom: 1px solid var(--lr15-line); }
  .lr15-survey__name { font: 700 16px/1.5 "Georgia", "Songti SC", serif; }
  .lr15-survey dl { display: grid; grid-template-columns: repeat(3, 1fr); width: 58%; }
  .lr15-survey dl > div { border-left: 1px solid var(--lr15-line); padding-left: 30px; }
  .lr15-survey dt { font-size: 14px; font-weight: 600; }
  .lr15-survey dd { font-size: 12px; color: var(--lr15-muted); }
  .lr15-crossroads, .lr15-gallery, .lr15-reading-frame, .lr15-next, .lr15-breadcrumb { max-width: var(--lr15-measure); margin-inline: var(--lr15-edge); }
  .lr15-crossroads { padding: 58px 0 20px; }
  .lr15-crossroads ol { list-style: none; display: grid; grid-template-columns: 1fr 1fr; padding: 0; margin: 18px 0 0; }
  .lr15-crossroads li + li { border-left: 1px solid var(--lr15-line); }
  .lr15-crossroads a { display: flex; gap: 22px; padding: 25px 24px 25px 0; text-decoration: none; color: var(--lr15-ink); }
  .lr15-crossroads li + li a { padding-left: 32px; }
  .lr15-crossroads__number { font: italic 22px/1.7 "Georgia", serif; color: var(--lr15-signal); }
  .lr15-crossroads a > span:nth-child(2) { flex: 1; }
  .lr15-crossroads strong { display: block; font-size: 25px; font-family: "Songti SC", "SimSun", serif; }
  .lr15-crossroads strong + span { display: block; color: var(--lr15-muted); font-size: 14px; margin-top: 8px; max-width: 340px; }
  .lr15-crossroads .lr15-glyph { margin-top: 8px; }
  .lr15-breadcrumb { padding-top: 25px; font-size: 12px; }
  .lr15-breadcrumb ol { list-style: none; display: flex; gap: 16px; padding: 0; margin: 0; }
  .lr15-breadcrumb li + li::before { content: "/"; color: var(--lr15-muted); margin-right: 16px; }
  .lr15-gallery { padding: 48px 0 58px; }
  .lr15-gallery__heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
  .lr15-gallery h2 { font-size: 32px; margin-top: 10px; }
  .lr15-gallery__controls { display: flex; gap: 8px; }
  .lr15-gallery__controls a { display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid var(--lr15-line); color: var(--lr15-green); border-radius: 50%; }
  .lr15-gallery__track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 28px) / 2); gap: 28px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--lr15-green) var(--lr15-wash); padding-bottom: 12px; }
  .lr15-transect__view { min-width: 0; scroll-snap-align: start; }
  .lr15-transect__image { display: block; position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: var(--lr15-wash); }
  .lr15-transect__image img { width: 100%; height: 100%; object-fit: cover; }
  .lr15-transect__image > span { position: absolute; right: 14px; bottom: 14px; width: 38px; height: 38px; background: var(--lr15-paper); display: grid; place-items: center; border-radius: 50%; }
  .lr15-transect__view figcaption { padding-top: 18px; font-size: 11px; color: var(--lr15-muted); overflow-wrap: anywhere; }
  .lr15-transect__label { display: block; font-size: 13px; color: var(--lr15-ink); font-weight: 600; }
  .lr15-transect__view figcaption p { font-size: 14px; margin: 6px 0 10px; }
  .lr15-imprint { padding: 52px var(--lr15-edge) 24px; border-top: 1px solid var(--lr15-line); background: var(--lr15-wash); }
  .lr15-imprint__upper { display: flex; justify-content: space-between; gap: 32px; }
  .lr15-imprint h2 { font-size: 28px; margin: 12px 0; }
  .lr15-imprint p { font-size: 13px; color: var(--lr15-muted); }
  .lr15-toplink { display: inline-flex; flex-direction: column; align-items: center; justify-content: flex-start; gap: 12px; font-size: 12px; text-decoration: none; min-width: 70px; padding-top: 14px; }
  .lr15-toplink .lr15-glyph { width: 42px; height: 42px; padding: 10px; box-sizing: content-box; border: 1px solid var(--lr15-line); border-radius: 50%; }
  .lr15-imprint__credits { border-block: 1px solid var(--lr15-line); margin-top: 34px; padding: 15px 0; font-size: 12px; }
  .lr15-imprint__credits summary { display: flex; justify-content: space-between; cursor: pointer; list-style: none; min-height: 32px; align-items: center; }
  .lr15-imprint__credits ul { padding-left: 20px; }
  .lr15-imprint__credits li { margin: 10px 0; overflow-wrap: anywhere; }
  .lr15-imprint__lower { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; font-size: 11px; padding-top: 22px; color: var(--lr15-muted); }
}

@layer reading {
  .lr15-reading-frame { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 90px; padding: 64px 0 80px; border-top: 1px solid var(--lr15-line); background-image: linear-gradient(90deg, transparent 259px, var(--lr15-line) 259px, var(--lr15-line) 260px, transparent 260px); }
  .lr15-margin { align-self: start; position: sticky; top: 28px; padding-right: 28px; }
  .lr15-margin__index ol { list-style: none; margin: 22px 0 0; padding: 0; }
  .lr15-margin__index a { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; padding: 10px 0; font-size: 12px; text-decoration: none; color: var(--lr15-muted); line-height: 1.65; }
  .lr15-margin__index a > span { color: var(--lr15-green); font-size: 10px; padding-top: 2px; }
  .lr15-sidenote { margin-top: 35px; padding: 24px 0 0; border-top: 1px solid var(--lr15-line); font-size: 14px; }
  .lr15-sidenote > .lr15-glyph { color: var(--lr15-green); margin-bottom: 12px; }
  .lr15-sidenote__checked { display: block; color: var(--lr15-muted); font-size: 10px; margin-top: 14px; }
  .lr15-reading { min-width: 0; max-width: 760px; }
  .lr15-reading__lead { padding-bottom: 38px; border-bottom: 1px solid var(--lr15-line); }
  .lr15-reading__lead .lr15-kicker { margin-bottom: 22px; }
  .lr15-reading__lead .lr15-prose { font-size: 18px; line-height: 1.95; }
  .lr15-reading__chapter { padding: 44px 0; border-bottom: 1px solid var(--lr15-line); }
  .lr15-reading__heading { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 14px; align-items: baseline; margin-bottom: 28px; }
  .lr15-reading__heading > span { color: var(--lr15-signal); font: italic 16px "Georgia", serif; }
  .lr15-reading h2 { font-size: 29px; }
  .lr15-prose { overflow-wrap: anywhere; }
  .lr15-prose h3 { margin: 27px 0 12px; }
  .lr15-prose h3:first-child { margin-top: 0; }
  .lr15-prose p + p { margin-top: 20px; }
  .lr15-prose ul { padding-left: 1.4em; margin-block: 18px; }
  .lr15-prose li { padding-left: 4px; margin-bottom: 10px; }
  .lr15-prose li::marker { color: var(--lr15-green); }
  .lr15-facts { border-top: 2px solid var(--lr15-green); margin-top: 30px; }
  .lr15-facts > div { display: grid; grid-template-columns: 110px minmax(0, 1fr); border-bottom: 1px solid var(--lr15-line); padding: 13px 0; gap: 12px; font-size: 14px; }
  .lr15-facts dt { color: var(--lr15-green); font-weight: 600; }
  .lr15-source-note { margin-top: 28px; padding: 20px 24px; border-left: 3px solid var(--lr15-green); background: var(--lr15-wash); font-size: 13px; }
  .lr15-source-note > span { display: block; margin-bottom: 8px; font-size: 11px; color: var(--lr15-muted); }
  .lr15-source-note a { display: block; margin-block: 8px; }
  .lr15-source-note .lr15-glyph { width: 15px; height: 15px; }
  .lr15-source-note p { margin-top: 12px; color: var(--lr15-muted); }
  .lr15-questions { padding-top: 50px; }
  .lr15-questions h2 { margin: 12px 0 26px; }
  .lr15-questions__item { border-top: 1px solid var(--lr15-line); }
  .lr15-questions__item:last-child { border-bottom: 1px solid var(--lr15-line); }
  .lr15-questions__item summary { cursor: pointer; padding: 21px 0; list-style: none; }
  summary::-webkit-details-marker { display: none; }
  .lr15-questions__item h3 { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; font-size: 17px; font-weight: 600; }
  .lr15-questions__item h3 .lr15-glyph { align-self: center; }
  .lr15-questions__item .lr15-prose { padding: 0 42px 26px 0; font-size: 16px; color: var(--lr15-muted); }
  .lr15-next { border-top: 1px solid var(--lr15-line); padding: 36px 0 60px; display: grid; grid-template-columns: 1fr 1fr; gap: 20px 60px; }
  .lr15-next > p { grid-column: 1 / -1; }
  .lr15-next a { display: flex; justify-content: space-between; align-items: center; text-decoration: none; border-bottom: 1px solid var(--lr15-line); padding: 16px 0; font-size: 18px; }
}

@layer interaction {
  .lr15-nameplate__routes a::after { content: ""; position: absolute; inset: auto 0 4px; height: 2px; background: var(--lr15-green); transform: scaleX(0); transform-origin: left; transition: transform 220ms ease; }
  .lr15-nameplate__routes a:hover::after, .lr15-nameplate__routes a[aria-current]::after { transform: scaleX(1); }
  .lr15-route-link, .lr15-crossroads a, .lr15-gallery__controls a { transition: background-color 200ms ease, color 200ms ease; }
  .lr15-route-link .lr15-glyph, .lr15-crossroads .lr15-glyph, .lr15-next .lr15-glyph, summary .lr15-glyph { transition: transform 220ms ease; }
  .lr15-route-link:hover { background: var(--lr15-yellow); color: var(--lr15-ink); }
  .lr15-route-link:hover .lr15-glyph { transform: translateX(4px); }
  .lr15-crossroads a:hover { background: var(--lr15-wash); }
  .lr15-crossroads a:hover .lr15-glyph, .lr15-next a:hover .lr15-glyph { transform: translate(3px, -3px); }
  .lr15-transect__image img { transition: transform 450ms ease; }
  .lr15-transect__image:hover img { transform: scale(1.035); }
  .lr15-gallery__controls a:hover { background: var(--lr15-green); color: #fff; }
  details[open] > summary .lr15-glyph { transform: rotate(180deg); }
  .lr15-margin__index a:hover { color: var(--lr15-green); text-decoration: underline; }
  .lr15-frontage__words { animation: lr15-arrival 650ms ease both; }
  @keyframes lr15-arrival { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  }
}

@layer responsive {
  @media (max-width: 1344px) {
    .lr15-reading-frame { gap: 54px; grid-template-columns: 225px minmax(0, 1fr); background-image: linear-gradient(90deg, transparent 224px, var(--lr15-line) 224px, var(--lr15-line) 225px, transparent 225px); }
  }
  @media (max-width: 1200px) {
    .lr15-nameplate { flex-wrap: wrap; gap: 8px 24px; }
    .lr15-nameplate__routes { order: 3; width: 100%; }
    .lr15-nameplate__actions { margin-left: auto; }
    .lr15-nameplate__locale { display: none; }
    .lr15-frontage h1 { font-size: 42px; max-width: 640px; }
    .lr15-reading-frame { gap: 35px; grid-template-columns: 190px minmax(0, 1fr); background-image: none; }
    .lr15-margin { padding-right: 0; }
    .lr15-reading h2 { font-size: 26px; }
    .lr15-survey dl { width: 65%; }
    .lr15-survey dl > div { padding-left: 16px; }
    .lr15-survey__name { font-size: 13px; }
  }
  @media (max-width: 700px) {
    :root { --lr15-edge: 24px; }
    body { font-size: 16px; }
    .lr15-nameplate { padding: 16px var(--lr15-edge) 5px; flex-wrap: wrap; gap: 9px; }
    .lr15-nameplate__brand strong { font-size: 23px; }
    .lr15-nameplate__brand img { width: 40px; height: 40px; }
    .lr15-nameplate__routes { width: 100%; }
    .lr15-nameplate__routes ul { justify-content: space-between; gap: 20px; }
    .lr15-nameplate__routes a { font-size: 13px; }
    .lr15-frontage { min-height: 445px; }
    .lr15-frontage__words { padding: 40px var(--lr15-edge) 95px; }
    .lr15-frontage::before { background: linear-gradient(90deg, rgb(13 23 19 / 78%), rgb(13 23 19 / 32%)), linear-gradient(0deg, rgb(13 23 19 / 72%), transparent 40%); }
    .lr15-frontage h1 { font-size: 32px; max-width: 520px; line-height: 1.4; }
    .lr15-frontage__eyebrow { font-size: 10px; margin-bottom: 20px; }
    .lr15-frontage__deck { font-size: 14px; margin-top: 20px; max-width: 360px; }
    .lr15-route-link { margin-top: 23px; padding: 10px 14px; min-height: 44px; gap: 28px; }
    .lr15-frontage__caption { right: var(--lr15-edge); bottom: 20px; font-size: 10px; max-width: 240px; }
    .lr15-frontage__folio { left: var(--lr15-edge); bottom: 20px; font-size: 10px; }
    .lr15-survey { padding: 22px 0; }
    .lr15-survey__name { display: none; }
    .lr15-survey dl { width: 100%; }
    .lr15-survey dl > div { padding-left: 13px; }
    .lr15-survey dl > div:first-child { border: 0; padding-left: 0; }
    .lr15-survey dt { font-size: 13px; }
    .lr15-survey dd { font-size: 11px; }
    .lr15-crossroads { padding: 32px 0 0; }
    .lr15-crossroads ol { grid-template-columns: 1fr; margin-top: 8px; }
    .lr15-crossroads a, .lr15-crossroads li + li a { padding: 20px 0; gap: 16px; }
    .lr15-crossroads li + li { border-left: 0; border-top: 1px solid var(--lr15-line); }
    .lr15-crossroads strong { font-size: 23px; }
    .lr15-crossroads strong + span { font-size: 13px; }
    .lr15-gallery { padding: 38px 0; }
    .lr15-gallery h2 { font-size: 25px; }
    .lr15-gallery__heading { align-items: center; gap: 12px; }
    .lr15-gallery__heading .lr15-kicker { font-size: 10px; }
    .lr15-gallery__controls { gap: 6px; }
    .lr15-gallery__controls a { width: 36px; height: 36px; }
    .lr15-gallery__track { grid-auto-columns: 91%; gap: 16px; }
    .lr15-transect__view figcaption p { font-size: 13px; }
    .lr15-reading-frame { display: block; padding: 32px 0 50px; }
    .lr15-margin { position: static; margin-bottom: 32px; }
    .lr15-margin__index ol { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; margin-top: 12px; }
    .lr15-margin__index a { font-size: 11px; grid-template-columns: 22px minmax(0, 1fr); gap: 5px; padding-block: 7px; }
    .lr15-sidenote { display: none; }
    .lr15-reading__lead .lr15-prose { font-size: 17px; line-height: 1.9; }
    .lr15-reading__chapter { padding: 32px 0; }
    .lr15-reading__heading { gap: 8px; grid-template-columns: 22px minmax(0, 1fr); margin-bottom: 22px; }
    .lr15-reading h2 { font-size: 25px; }
    .lr15-prose h3 { font-size: 18px; }
    .lr15-facts > div { grid-template-columns: 85px minmax(0, 1fr); font-size: 13px; }
    .lr15-source-note { padding: 17px; }
    .lr15-questions__item h3 { font-size: 16px; gap: 12px; }
    .lr15-questions__item .lr15-prose { padding-right: 0; font-size: 15px; }
    .lr15-next { grid-template-columns: 1fr; gap: 12px; padding-bottom: 36px; }
    .lr15-next a { font-size: 16px; }
    .lr15-imprint { padding: 36px var(--lr15-edge) 20px; }
    .lr15-imprint__upper { gap: 18px; }
    .lr15-imprint h2 { font-size: 23px; }
    .lr15-imprint .lr15-kicker { font-size: 9px; }
    .lr15-toplink { min-width: 45px; font-size: 10px; }
    .lr15-toplink .lr15-glyph { width: 20px; height: 20px; padding: 10px; }
  }
}