:root {
  --ink: #080808;
  --ink-2: #101010;
  --card: #171515;
  --lift: #211b18;
  --paper: #f4f0eb;
  --mist: #a7a19c;
  --amber: #e58a50;
  --copper: #c76b3f;
  --cream: #f0d4b7;
  --line: #36302c;
  --display: "Plus Jakarta Sans", "Noto Sans SC", "Noto Sans Arabic", sans-serif;
  --body: "DM Sans", "Noto Sans SC", "Noto Sans Arabic", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.65;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.22;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.55'/></svg>");
}
a { color: var(--cream); }
img { max-width: 100%; height: auto; }
code { font-family: var(--mono); font-size: 0.9em; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.03em; line-height: 1.08; margin: 0 0 0.7rem; }
h1 { font-size: clamp(2.7rem, 6vw, 5.1rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.7rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.02em; }
h1 em, h2 em, h3 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
  color: transparent;
  background-image: linear-gradient(105deg, #f0d4b7 8%, #e58a50 40%, #fff6ec 52%, #c76b3f 88%);
  background-size: 220% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  filter: drop-shadow(0 0 14px rgba(229, 138, 80, 0.28));
  animation: title-sheen 8s ease-in-out infinite;
}
h1::after, h2::after {
  content: "";
  display: block;
  width: 2.6rem;
  height: 1px;
  margin-top: 0.65rem;
  background: linear-gradient(to inline-end, var(--amber), transparent);
}
@keyframes title-sheen {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.jump-read {
  position: absolute;
  left: 0.6rem;
  top: -3rem;
  background: var(--amber);
  color: #1a0e08;
  padding: 0.4rem 0.7rem;
  z-index: 80;
}
.jump-read:focus { top: 0.6rem; }
.atelier { min-height: 100vh; }
.folio { position: relative; z-index: 2; min-width: 0; padding-top: 0.7rem; }
.mast-panel {
  position: sticky;
  top: 0.65rem;
  z-index: 40;
  width: fit-content;
  max-width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto minmax(0, max-content) auto;
  align-items: center;
  gap: 0.35rem 0.85rem;
  padding: 0.32rem 0.7rem;
  background: #101010;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.dock-nav {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 0.1rem;
}
.dock-nav a {
  color: var(--mist);
  text-decoration: none;
  padding: 0.28rem 0.48rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.86rem;
  white-space: nowrap;
}
.dock-nav a:hover { color: var(--paper); }
.dock-nav a[aria-current="page"] {
  color: var(--paper);
  background: var(--lift);
  border-color: var(--line);
}
.crest-lockup {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--paper);
  text-decoration: none;
  min-width: 0;
}
.crest-lockup img {
  width: 3.4rem;
  height: 1.25rem;
  object-fit: cover;
  object-position: center 34%;
  background: transparent;
  flex: none;
}
.crest-name { font-family: var(--display); font-weight: 650; font-size: 1.25rem; letter-spacing: -0.03em; white-space: nowrap; }
.crest-name i { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--cream); margin-inline-start: 0.35rem; font-size: 1.05rem; }
.mast-tools { display: flex; align-items: center; justify-content: flex-end; gap: 0.55rem; }
.menu-toggle {
  display: none;
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-family: var(--display);
}
.lang-pop { position: relative; }
.lang-open, .amber-btn, .quiet-btn, .view-x {
  font-family: var(--display);
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
}
.lang-open {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
  min-width: 2.6rem;
  min-height: 2.6rem;
}
.lang-sheet {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 0.4rem);
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  min-width: 9rem;
  z-index: 5;
}
.lang-sheet a { display: block; padding: 0.4rem 0.55rem; color: var(--paper); text-decoration: none; }
.lang-sheet a[aria-current="true"] { color: var(--amber); }
.amber-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--amber);
  color: #1a0e08;
  border: 0;
  min-height: 2.6rem;
  padding: 0.4rem 1rem;
  font-weight: 650;
}
.amber-btn:hover { background: var(--cream); }
.corner-pin {
  position: fixed;
  z-index: 45;
  inset-inline-end: 1rem;
  bottom: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  background: var(--amber);
  color: #1a0e08;
  font-family: var(--display);
  font-weight: 650;
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}
.corner-pin:hover { background: var(--cream); }
.quiet-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
  min-height: 2.6rem;
  padding: 0.4rem 1rem;
}
.quiet-btn:hover { border-color: var(--amber); }
.measure { width: min(1080px, calc(100% - 2.6rem)); margin-inline: auto; }
.kicker {
  margin: 0 0 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}
.lead { font-size: 1.15rem; max-width: 40rem; color: var(--paper); }
.crumb { font-size: 0.9rem; margin: 0 0 1rem; color: var(--mist); }
.crumb ol { display: flex; flex-wrap: wrap; gap: 0.35rem 0.55rem; list-style: none; padding: 0; margin: 0; }
.crumb a { color: var(--mist); text-decoration: none; }
.crumb li:not(:last-child)::after { content: "/"; margin-inline-start: 0.45rem; color: var(--copper); }
.hero {
  position: relative;
  padding: 4.5rem 0 3rem;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(199, 107, 63, 0.22), transparent 46%),
    radial-gradient(ellipse at 80% 30%, rgba(229, 138, 80, 0.08), transparent 40%),
    var(--ink);
}
.hero .measure { position: relative; }
.hero h1 { max-width: 14ch; margin-inline: auto; }
.hero h1::after {
  width: 4.2rem;
  margin-inline: auto;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}
.hero .lead, .action-row { margin-inline: auto; }
.hero-frame {
  position: absolute;
  inset: 1.2rem;
  border: 1px solid rgba(54, 48, 44, 0.9);
  pointer-events: none;
}
.hero-frame::before, .hero-frame::after {
  content: "";
  position: absolute;
  width: 0.55rem;
  height: 0.55rem;
  border: 1px solid var(--amber);
}
.hero-frame::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.hero-frame::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.action-row { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; margin-top: 1.5rem; }
.split-row { display: grid; gap: 1.4rem; margin-top: 2.4rem; text-align: start; }
.chapter { padding: 3.4rem 0; background: var(--ink); }
.chapter-deep {
  padding: 3.4rem 0;
  background:
    radial-gradient(ellipse at 0% 0%, rgba(199, 107, 63, 0.12), transparent 42%),
    var(--ink-2);
}
.closing {
  padding: 3rem 0;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(229, 138, 80, 0.16), transparent 46%),
    #070707;
}
.rule, .rule-soft, .rule-mark { border: 0; height: 1px; margin: 0; }
.rule { background: linear-gradient(90deg, transparent, var(--copper), var(--amber), transparent); }
.rule-soft { background: linear-gradient(90deg, transparent, var(--line), transparent); }
.rule-mark {
  height: 1.4rem;
  background:
    linear-gradient(var(--amber), var(--amber)) center / 4.5rem 1px no-repeat,
    radial-gradient(circle, var(--amber) 0 3px, transparent 3.5px) center / 100% 100% no-repeat;
}
.port-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
}
.port-card header, .cmd-line {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  padding: 0.7rem 0.9rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--mist);
}
.port-card header { border-bottom: 1px solid var(--line); color: var(--paper); }
.port-card table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 0.86rem; }
.port-card th, .port-card td, .data-table th, .data-table td { text-align: start; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.state-pip {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  display: inline-block;
  border: 1px solid var(--mist);
  margin-inline-end: 0.35rem;
}
.state-pip.is-open { background: var(--amber); border-color: var(--amber); }
.card-grid { display: grid; gap: 0.85rem; }
.note-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.15rem 1.15rem 0.35rem;
}
.note-card:hover { border-color: var(--copper); background: var(--lift); }
.fact-row { display: grid; list-style: none; padding: 0; margin: 1rem 0; border: 1px solid var(--line); border-radius: 0.8rem; overflow: hidden; }
.fact-row li { padding: 0.7rem 0.85rem; border-bottom: 1px solid var(--line); background: rgba(8, 8, 8, 0.35); }
.fact-row strong { display: block; font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mist); }
.hash-block { font-family: var(--mono); font-size: 0.95rem; line-height: 1.7; overflow-wrap: anywhere; color: var(--cream); }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 0.8rem; }
.data-table { width: 100%; border-collapse: collapse; min-width: 40rem; }
.data-table th { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--mist); }
.quote-lane { overflow: hidden; }
.quote-track { display: flex; gap: 0.8rem; width: max-content; animation: drift 46s linear infinite; }
.quote-lane:hover .quote-track, .quote-lane:focus-within .quote-track { animation-play-state: paused; }
.quote-card {
  width: min(22rem, 78vw);
  margin: 0;
  padding: 0.95rem 1rem;
  border-radius: 1rem;
  background: var(--card);
  border: 1px solid var(--line);
}
.quote-card footer { color: var(--mist); font-size: 0.85rem; }
@keyframes drift { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.fold-set details {
  border: 1px solid var(--line);
  border-radius: 0.95rem;
  margin: 0 0 0.65rem;
  background: var(--card);
  overflow: hidden;
  scroll-margin-top: 5.2rem;
}
.fold-set summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1.05rem;
  font-family: var(--display);
  font-weight: 600;
}
.fold-set summary::-webkit-details-marker { display: none; }
.fold-set summary::after {
  content: "+";
  flex: none;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--amber);
  color: #1a0e08;
  font-family: var(--mono);
}
.fold-set details[open] summary::after { content: "–"; background: var(--copper); color: var(--paper); }
.fold-set details[open] { border-color: var(--copper); }
.fold-set .answer { padding: 0.15rem 1.05rem 1rem; color: var(--mist); }
.fold-set .answer p { margin: 0; }
.fold-set code, .step-list code { overflow-wrap: anywhere; }
.step-list { list-style: none; padding: 0; margin: 1rem 0 0; counter-reset: step; }
.step-list li {
  counter-increment: step;
  position: relative;
  margin: 0 0 0.65rem;
  padding-block: 0.8rem;
  padding-inline: 3rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--card);
}
.step-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  inset-inline-start: 0.9rem;
  top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--amber);
}
.pkg-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
  padding: 1rem 1.05rem;
  margin: 0 0 0.7rem;
  border-radius: 1rem;
  background: var(--card);
  border: 1px solid var(--line);
}
.pkg-row.is-main { border-color: var(--copper); background: var(--lift); }
.time-line { border-inline-start: 1px solid var(--copper); padding-inline-start: 1rem; }
.time-line article { margin: 0 0 1.15rem; }
.shot { margin: 0; max-width: 26rem; }
.shot button { display: block; width: 100%; padding: 0; border: 0; background: transparent; cursor: zoom-in; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  background: #070707;
  border-radius: 0.85rem;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.shot figcaption { color: var(--mist); font-size: 0.85rem; margin-top: 0.4rem; }
.pair { display: grid; gap: 1rem; }
.jump-list { display: grid; gap: 0.15rem; margin: 0.2rem 0 0.5rem; padding: 0; list-style: none; counter-reset: jump; }
.jump-list li { counter-increment: jump; }
.jump-list a { display: flex; gap: 0.65rem; align-items: baseline; padding: 0.28rem 0; text-decoration: none; color: var(--paper); }
.jump-list a::before { content: counter(jump, decimal-leading-zero); font-family: var(--mono); font-size: 0.72rem; color: var(--amber); }
.reading { width: min(46rem, calc(100% - 2.6rem)); }
.foot-band { background: #070707; color: var(--mist); padding: 2rem 0 1.6rem; border-top: 1px solid var(--line); }
.foot-band a { color: var(--paper); }
.fine { font-size: 0.95rem; }
.foot-links, .locale-row { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; list-style: none; padding: 0; margin: 0 0 0.8rem; }
.locale-row a[aria-current="true"] { color: var(--amber); }
#shot-stage[hidden] { display: none !important; }
#shot-stage { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; padding: 1rem; background: rgba(8, 8, 8, 0.92); }
#shot-stage img { max-width: min(1100px, 100%); max-height: 78vh; border-radius: 0.6rem; }
.view-x { position: absolute; top: 0.75rem; inset-inline-end: 0.75rem; min-width: 2.6rem; min-height: 2.6rem; background: var(--paper); color: #1a0e08; border: 0; font-weight: 700; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
main section[id] { scroll-margin-top: 5rem; }
html[lang="zh-CN"] body, html[lang="zh-CN"] h1, html[lang="zh-CN"] h2, html[lang="zh-CN"] h3, html[lang="zh-CN"] .amber-btn, html[lang="zh-CN"] .quiet-btn, html[lang="zh-CN"] .corner-pin, html[lang="zh-CN"] .dock-nav a { font-family: "Noto Sans SC", var(--body); }
html[lang="zh-CN"] .dock-nav a { letter-spacing: 0.08em; }
html[lang="ru"] .amber-btn, html[lang="ru"] .quiet-btn, html[lang="ru"] .corner-pin { padding: 0.55rem 1.05rem; }
html[lang="ar"] { direction: rtl; }
html[lang="ar"] body, html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3, html[lang="ar"] .amber-btn, html[lang="ar"] .quiet-btn, html[lang="ar"] .corner-pin, html[lang="ar"] .dock-nav a { font-family: "Noto Sans Arabic", var(--body); }
html[lang="ar"] .port-card th, html[lang="ar"] .port-card td, html[lang="ar"] .data-table th, html[lang="ar"] .data-table td { text-align: right; }
html[lang="ar"] h1, html[lang="ar"] h2 { letter-spacing: 0; }
html[lang="ar"] .quote-track { animation-name: drift-rtl; }
@keyframes drift-rtl { from { transform: translateX(0); } to { transform: translateX(50%); } }
@media (max-width: 1180px) {
  .mast-panel {
    grid-template-columns: auto auto;
    width: fit-content;
    max-width: calc(100% - 1.2rem);
  }
  .atelier.is-open .mast-panel { border-radius: 1.15rem; width: min(22rem, calc(100% - 1.2rem)); }
  .crest-lockup { grid-column: 1; grid-row: 1; }
  .mast-tools { grid-column: 2; grid-row: 1; }
  .dock-nav {
    display: none;
    grid-column: 1 / -1;
    grid-row: 2;
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 0.35rem;
  }
  .atelier.is-open .dock-nav { display: flex; }
  .menu-toggle { display: inline-flex; }
  .crest-lockup img { width: 2.7rem; height: 1rem; }
  .crest-name i { display: none; }
  .dock-nav a { white-space: normal; }
}
@media (min-width: 800px) {
  .flip > :first-child { order: 2; }
  .flip > :last-child { order: 1; }
  .fact-row { grid-template-columns: repeat(4, 1fr); }
  .fact-row li { border-bottom: 0; border-inline-end: 1px solid var(--line); }
  .fact-row li:last-child { border-inline-end: 0; }
  .split-row { grid-template-columns: 1.05fr 0.95fr; align-items: start; }
  .pair { grid-template-columns: 1fr 1fr; }
  .card-grid.two { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  h1 em, h2 em, h3 em { background-position: 40% 50%; filter: none; }
  .quote-track { width: auto; flex-wrap: wrap; }
  .quote-track [aria-hidden="true"] { display: none; }
}