:root {
  --bg: #08141F;
  --bg-2: #0F2436;
  --gold: #E8B65B;
  --orange: #FF7A59;
  --teal: #35D3CA;
  --wine: #8F2A3C;
  --indigo: #5B5EA6;
  --text: #E6EDF3;
  --muted: #93A7BA;
  --line: rgba(232, 182, 91, .16);
  --line-soft: rgba(147, 167, 186, .16);
  --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --rail: 17rem;
  --radius-lg: 1.5rem;
  --radius-md: 1rem;
  --radius-sm: .75rem;
  --shadow-md: 0 .5rem 1.25rem rgba(0, 0, 0, .22);
  --shadow-lg: 0 1rem 2.5rem rgba(0, 0, 0, .34);
  --container-w: 74rem;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

#main-content {
  display: block;
  outline: none;
  scroll-margin-top: 1.25rem;
}

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

h1, h2, h3, h4, p, ul {
  margin: 0;
}

ul {
  padding: 0;
}

button {
  font: inherit;
  cursor: pointer;
}

a {
  color: var(--teal);
  text-underline-offset: .22em;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 1200;
  padding: .6rem 1.1rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--bg);
  font-weight: 900;
  text-decoration: none;
  transform: translateY(-300%);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.reading-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  z-index: 1100;
  pointer-events: none;
  background: rgba(232, 182, 91, .14);
}

.reading-progress::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--gold), var(--orange));
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
}

.site-header {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--rail);
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: clamp(1.25rem, 2.5vw, 1.75rem) 1.25rem 1.25rem;
  background:
    linear-gradient(rgba(232, 182, 91, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 182, 91, .04) 1px, transparent 1px),
    radial-gradient(circle at 20% 0%, rgba(91, 94, 166, .18), transparent 38%),
    linear-gradient(180deg, #0A1A29 0%, var(--bg) 80%);
  background-size: 3.5rem 3.5rem, 3.5rem 3.5rem, auto, auto;
  border-right: 1px solid rgba(232, 182, 91, .18);
  overflow-x: hidden;
  overflow-y: auto;
  z-index: 70;
}

.nav-backdrop {
  display: none;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  padding: .25rem 0 1.25rem;
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
}

.brand-operator {
  color: var(--teal);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .38em;
  text-transform: uppercase;
}

.brand-name {
  color: var(--gold);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.brand-tagline {
  color: var(--muted);
  font-size: .76rem;
  line-height: 1.6;
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin-top: 1.5rem;
  transform: none;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin-block: .15rem;
}

.nav-link {
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .72rem .9rem;
  border-left: 2px solid rgba(147, 167, 186, .22);
  color: var(--text);
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
  position: relative;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.nav-index {
  min-width: 1.7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--gold);
  opacity: .6;
}

.nav-label {
  font-size: .95rem;
}

.nav-link:hover {
  color: var(--gold);
  border-color: rgba(232, 182, 91, .6);
  background: linear-gradient(90deg, rgba(232, 182, 91, .12), transparent 75%);
}

.nav-link[aria-current="page"] {
  color: var(--gold);
  border-color: var(--gold);
  background: linear-gradient(90deg, rgba(232, 182, 91, .16), transparent 80%);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  top: 50%;
  right: .75rem;
  width: .42rem;
  height: .42rem;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 .2rem rgba(255, 122, 89, .14);
  transform: translateY(-50%);
}

.nav-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: .82rem 1.15rem;
  border-radius: 999px;
  background: var(--gold);
  color: var(--bg);
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 .6rem 1.4rem rgba(232, 182, 91, .22);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.nav-cta::after {
  content: "→";
  font-family: var(--font-mono);
}

.nav-cta:hover {
  background: var(--orange);
  box-shadow: 0 .8rem 1.8rem rgba(255, 122, 89, .28);
  transform: translateY(-2px);
}

.header-announce {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.25rem;
  padding: .6rem .8rem;
  border: 1px solid rgba(53, 211, 202, .22);
  border-radius: 999px;
  background: rgba(53, 211, 202, .07);
  color: var(--teal);
  font-size: .74rem;
  font-weight: 800;
  line-height: 1.4;
}

.announce-dot {
  flex: 0 0 auto;
  width: .45rem;
  height: .45rem;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 .25rem rgba(255, 122, 89, .16);
}

@media (min-width: 64rem) {
  body {
    padding-left: var(--rail);
  }

  .nav-backdrop {
    display: none !important;
  }

  .site-nav[data-open] {
    transform: none;
  }
}

@media (max-width: 63.99rem) {
  body {
    padding-left: 0;
  }

  body.nav-open {
    overflow: hidden;
  }

  .site-header {
    position: sticky;
    top: 0;
    width: auto;
    height: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .25rem 1rem;
    padding: .85rem 1rem;
    background:
      radial-gradient(circle at 85% 0%, rgba(91, 94, 166, .18), transparent 40%),
      rgba(8, 20, 31, .94);
    border-right: 0;
    border-bottom: 1px solid rgba(232, 182, 91, .16);
    overflow: visible;
  }

  .brand-lockup {
    flex: 1 1 0;
    min-width: 0;
    border-bottom: 0;
    padding: .1rem 0;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: .45rem;
    width: 3rem;
    height: 3rem;
    border: 1px solid rgba(232, 182, 91, .3);
    border-radius: 999px;
    background: rgba(232, 182, 91, .06);
    z-index: 100;
  }

  .nav-toggle-bar {
    display: block;
    width: 1.5rem;
    height: 2px;
    margin-inline: auto;
    border-radius: 2px;
    background: var(--gold);
    transition: transform .24s ease;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar-top {
    transform: translateY(.45rem) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar-bottom {
    transform: translateY(-.45rem) rotate(-45deg);
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(2, 8, 14, .68);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .24s ease;
  }

  .nav-backdrop[data-open] {
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    width: min(84vw, 23rem);
    z-index: 90;
    margin-top: 0;
    padding: clamp(5rem, 20vw, 6rem) 1.25rem 1.5rem;
    background:
      linear-gradient(160deg, rgba(91, 94, 166, .12), transparent 30%),
      linear-gradient(160deg, #0A1A29 0%, var(--bg-2) 75%, #091420 100%);
    border-left: 1px solid rgba(232, 182, 91, .24);
    box-shadow: -1rem 0 3rem rgba(0, 0, 0, .45);
    transform: translateX(105%);
    transition: transform .24s ease;
  }

  .site-nav[data-open] {
    transform: translateX(0);
  }

  .header-announce {
    flex: 0 0 100%;
    order: 3;
    margin-top: .5rem;
  }

  .nav-cta {
    margin-top: auto;
  }
}

.site-footer {
  position: relative;
  margin-top: clamp(4rem, 8vw, 7rem);
  padding: clamp(2.5rem, 5vw, 4rem) 0 1.75rem;
  background:
    radial-gradient(circle at 85% 0%, rgba(143, 42, 60, .14), transparent 34%),
    linear-gradient(145deg, #0A1A29 0%, var(--bg-2) 52%, #0A1724 100%);
  border-top: 1px solid rgba(232, 182, 91, .18);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--orange) 40%, transparent 85%);
  opacity: .85;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.8fr);
  gap: 2rem 3rem;
  width: min(100% - clamp(1.25rem, 4vw, 3rem), var(--container-w));
  margin-inline: auto;
}

.footer-brand {
  grid-column: 1;
  grid-row: span 2;
}

.footer-kicker {
  color: var(--teal);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .32em;
  text-transform: uppercase;
}

.footer-title {
  margin-top: .25rem;
  color: var(--gold);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -.02em;
}

.footer-tagline {
  margin-top: .4rem;
  color: var(--muted);
  font-size: .88rem;
}

.footer-nav {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-content: flex-start;
}

.footer-link {
  padding: .45rem 1rem;
  border: 1px solid rgba(232, 182, 91, .28);
  border-radius: 999px;
  background: rgba(232, 182, 91, .05);
  color: var(--gold);
  font-size: .85rem;
  font-weight: 800;
  text-decoration: none;
  transition: background .2s ease, transform .2s ease;
}

.footer-link:hover {
  background: rgba(232, 182, 91, .14);
  transform: translateY(-1px);
}

.footer-contact {
  grid-column: 2;
  display: grid;
  gap: .2rem;
  color: var(--muted);
  font-size: .85rem;
}

.footer-contact-line {
  margin: 0;
}

.footer-meta {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: .75rem 2rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: .8rem;
}

.footer-copyright,
.footer-icp,
.footer-note {
  margin: 0;
}

.footer-note {
  grid-column: 1 / -1;
  line-height: 1.7;
  opacity: .85;
}

@media (max-width: 56rem) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .footer-nav {
    grid-column: 1;
  }

  .footer-contact {
    grid-column: 2;
  }
}

@media (max-width: 38rem) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .footer-nav,
  .footer-contact {
    grid-column: auto;
  }

  .footer-meta {
    grid-template-columns: 1fr;
  }
}

.container {
  width: min(100% - clamp(1.25rem, 4vw, 3rem), var(--container-w));
  margin-inline: auto;
}

.page {
  padding-block: clamp(2.5rem, 5vw, 5rem);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 1.5rem;
  align-items: end;
  margin-bottom: 2.5rem;
}

.section-no {
  grid-row: 1 / span 2;
  color: rgba(232, 182, 91, .38);
  -webkit-text-stroke: 1px rgba(232, 182, 91, .35);
  font-family: var(--font-mono);
  font-size: clamp(3rem, 6vw, 5.25rem);
  font-weight: 900;
  line-height: .85;
  letter-spacing: -.04em;
}

.section-title {
  grid-column: 2;
  color: var(--text);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.03em;
}

.section-intro {
  grid-column: 2;
  max-width: 58ch;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.card {
  grid-column: span 6;
  padding: 1.4rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--bg-2), rgba(15, 36, 54, .72));
  box-shadow: var(--shadow-md);
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}

.card-wide {
  grid-column: span 8;
}

.card-narrow {
  grid-column: span 4;
}

.card[data-tone="gold"] {
  border-top: 3px solid var(--gold);
}

.card[data-tone="teal"] {
  border-top: 3px solid var(--teal);
}

.card[data-tone="orange"] {
  border-top: 3px solid var(--orange);
}

.card[data-tone="wine"] {
  border-top: 3px solid var(--wine);
}

.card[data-tone="indigo"] {
  border-top: 3px solid var(--indigo);
}

.card:hover {
  border-color: rgba(232, 182, 91, .36);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px) scale(1.02);
}

@media (max-width: 60rem) {
  .card-wide,
  .card-narrow {
    grid-column: span 6;
  }
}

@media (max-width: 44rem) {
  .card,
  .card-wide,
  .card-narrow {
    grid-column: 1 / -1;
  }
}

.panel {
  padding: 1.5rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: rgba(15, 36, 54, .72);
  box-shadow: var(--shadow-md);
}

.panel[data-tone="gold"] {
  border-top: 3px solid var(--gold);
}

.panel[data-tone="teal"] {
  border-top: 3px solid var(--teal);
}

.panel[data-tone="orange"] {
  border-top: 3px solid var(--orange);
}

.panel[data-tone="wine"] {
  border-top: 3px solid var(--wine);
}

.panel[data-tone="indigo"] {
  border-top: 3px solid var(--indigo);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .28rem .8rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(147, 167, 186, .12);
  color: var(--text);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .05em;
}

.tag[data-tone="gold"] {
  border-color: rgba(232, 182, 91, .28);
  background: rgba(232, 182, 91, .1);
  color: var(--gold);
}

.tag[data-tone="teal"] {
  border-color: rgba(53, 211, 202, .28);
  background: rgba(53, 211, 202, .08);
  color: var(--teal);
}

.tag[data-tone="orange"] {
  border-color: rgba(255, 122, 89, .3);
  background: rgba(255, 122, 89, .1);
  color: var(--orange);
}

.tag[data-tone="wine"] {
  border-color: rgba(143, 42, 60, .38);
  background: rgba(143, 42, 60, .16);
  color: #E5A7B0;
}

.data-stat {
  margin: 0;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.04em;
}

.data-stat[data-tone="teal"] {
  color: var(--teal);
}

.data-stat[data-tone="orange"] {
  color: var(--orange);
}

.data-stat[data-tone="wine"] {
  color: #E5A7B0;
}

.data-label {
  margin: .35rem 0 0;
  color: var(--muted);
  font-size: .84rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 2.8rem;
  padding: .65rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--gold);
  font-size: .95rem;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 .6rem 1.25rem rgba(8, 20, 31, .35);
}

.btn-primary {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--bg);
}

.btn-primary:hover {
  border-color: var(--orange);
  background: var(--orange);
}

.btn-ghost {
  border-color: rgba(232, 182, 91, .5);
  background: rgba(232, 182, 91, .04);
  color: var(--gold);
}

.btn-ghost:hover {
  background: rgba(232, 182, 91, .1);
}

.btn-teal {
  border-color: rgba(53, 211, 202, .45);
  background: rgba(53, 211, 202, .06);
  color: var(--teal);
}

.btn-teal:hover {
  background: rgba(53, 211, 202, .12);
}

.btn-block {
  width: 100%;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: .85rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
}

.breadcrumb li + li::before {
  content: "/";
  margin-inline: .5rem;
  color: rgba(91, 94, 166, .8);
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--gold);
}

.breadcrumb [aria-current="page"] {
  color: var(--gold);
}

.prose {
  max-width: 68ch;
}

.prose h2,
.prose h3,
.prose h4 {
  color: var(--gold);
  line-height: 1.25;
}

.prose p {
  margin-block: .85em;
  color: var(--text);
}

.prose ul,
.prose ol {
  margin: 1em 0;
  padding-left: 1.3rem;
}

.prose li {
  margin-block: .35em;
}

.prose li::marker {
  color: var(--gold);
}

.prose strong {
  color: var(--gold);
  font-weight: 900;
}

.prose a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: .2em;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 48rem) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 80% 20%, rgba(91, 94, 166, .14), transparent 42%),
    linear-gradient(145deg, rgba(232, 182, 91, .08), rgba(53, 211, 202, .06)),
    var(--bg-2);
}

.media::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 3rem, rgba(232, 182, 91, .04) 3rem 3.02rem),
    radial-gradient(circle at 70% 30%, rgba(232, 182, 91, .06), transparent 36%);
}

.media::after {
  content: attr(data-caption);
  position: absolute;
  right: 1rem;
  bottom: .75rem;
  left: 1rem;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-shadow: 0 .2rem .6rem rgba(8, 20, 31, .8);
  pointer-events: none;
}

.media img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media[data-ratio="16:9"] {
  aspect-ratio: 16 / 9;
}

.media[data-ratio="4:3"] {
  aspect-ratio: 4 / 3;
}

.media[data-ratio="3:4"] {
  aspect-ratio: 3 / 4;
}

.media[data-ratio="1:1"] {
  aspect-ratio: 1;
}

.media-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 14rem;
  padding: 2rem;
  border: 1px dashed rgba(147, 167, 186, .28);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(232, 182, 91, .06), rgba(53, 211, 202, .05) 45%, rgba(91, 94, 166, .08));
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  text-align: center;
  text-transform: uppercase;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity .5s ease, transform .5s ease;
  transition-delay: var(--reveal-delay, 0s);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }

  .site-nav,
  .nav-backdrop,
  .nav-toggle-bar {
    transition: none;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}