:root {
  --ml-ink: #071A14;
  --ml-panel: #0F2A21;
  --ml-cyan: #3BF0D0;
  --ml-cyan-soft: #8FF7E7;
  --ml-orange: #FF8A3D;
  --ml-orange-deep: #C95A1E;
  --ml-chalk: #F2F7F3;
  --ml-sage: #9DB3A9;
  --ml-line: #2A4A3E;
  --ml-amber: #FFD166;
  --ml-radius: 4px;
  --ml-shadow: 0 1px 0 rgba(0,0,0,.4), 0 8px 24px -18px rgba(0,0,0,.9);
  --ml-rail: 268px;
  --ml-gap: clamp(16px, 2.4vw, 32px);
  --ml-font-display: "Barlow Condensed", "Oswald", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --ml-font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --ml-font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 88% -10%, rgba(59,240,208,.06), transparent 70%),
    radial-gradient(900px 520px at -8% 108%, rgba(255,138,61,.05), transparent 72%),
    var(--ml-ink);
  color: var(--ml-chalk);
  font-family: var(--ml-font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .35;
  background-image:
    linear-gradient(rgba(42,74,62,.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,74,62,.22) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 78%);
}

h1, h2, h3, h4 {
  font-family: var(--ml-font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.01em;
  margin: 0 0 .5em;
  text-wrap: balance;
}

h1 { font-size: clamp(38px, 5.4vw, 76px); }
h2 { font-size: clamp(26px, 3.2vw, 40px); }
h3 { font-size: clamp(20px, 2.1vw, 28px); font-weight: 700; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--ml-cyan-soft); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ml-cyan); }

ul, ol { margin: 0; padding: 0; list-style: none; }

strong, b { font-weight: 700; color: var(--ml-chalk); }

.mono {
  font-family: var(--ml-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

:focus-visible {
  outline: 2px solid var(--ml-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

.ml-shell {
  position: relative;
  z-index: 1;
  width: min(1440px, 100%);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 44px);
}

.ml-skip {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-160%);
  background: var(--ml-cyan);
  color: #04120E;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 18px;
  border-radius: var(--ml-radius);
  text-decoration: none;
  transition: transform .18s ease;
}
.ml-skip:focus-visible { transform: translateY(0); }

/* ---------- scroll progress ---------- */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 150;
  background: rgba(42,74,62,.5);
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--ml-cyan), var(--ml-amber) 62%, var(--ml-orange));
  box-shadow: 0 0 12px rgba(59,240,208,.5);
}

/* ---------- header / rail ---------- */
.site-header {
  position: relative;
  z-index: 100;
  background: linear-gradient(180deg, rgba(15,42,33,.96), rgba(7,26,20,.96));
  border-bottom: 1px solid var(--ml-line);
  backdrop-filter: blur(6px);
}

.site-header__inner {
  width: min(1440px, 100%);
  margin-inline: auto;
  padding: 14px clamp(16px, 3vw, 44px);
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ml-chalk);
}
.brand__mark {
  display: inline-grid;
  place-items: center;
  font-family: var(--ml-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ml-ink);
  background: var(--ml-cyan);
  border-radius: 3px;
  padding: 6px 7px;
  line-height: 1;
  box-shadow: 0 0 18px -6px rgba(59,240,208,.8);
}
.brand__text { display: flex; flex-direction: column; gap: 2px; }
.brand__name {
  font-family: var(--ml-font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1;
  letter-spacing: .02em;
}
.brand__tagline {
  font-size: 11.5px;
  color: var(--ml-sage);
  letter-spacing: .04em;
  line-height: 1.3;
}
.brand--footer { pointer-events: none; }
.brand--footer .brand__mark { background: var(--ml-orange); box-shadow: none; color: #140800; }

.nav-toggle {
  margin-left: auto;
  display: none;
  align-items: center;
  gap: 4px;
  flex-direction: column;
  background: var(--ml-panel);
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  padding: 9px 12px;
  color: var(--ml-chalk);
  cursor: pointer;
  font-family: var(--ml-font-body);
}
.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ml-cyan);
  border-radius: 2px;
}
.nav-toggle__label {
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--ml-sage);
  margin-top: 2px;
}
.nav-toggle[aria-expanded="true"] { border-color: var(--ml-cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
.nav-toggle__bar { transition: transform .2s ease, opacity .2s ease; }

.rail-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1 1 100%;
}
.rail-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.rail-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid transparent;
  border-radius: var(--ml-radius);
  text-decoration: none;
  color: var(--ml-sage);
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}
.rail-nav__index {
  font-family: var(--ml-font-mono);
  font-size: 10.5px;
  color: var(--ml-line);
  letter-spacing: 0;
}
.rail-nav__link:hover,
.rail-nav__link:focus-visible {
  color: var(--ml-chalk);
  border-color: var(--ml-line);
  background: rgba(59,240,208,.06);
}
.rail-nav__link:hover .rail-nav__index { color: var(--ml-cyan-soft); }
.rail-nav__link[aria-current="page"] {
  color: var(--ml-ink);
  background: var(--ml-cyan);
  border-color: var(--ml-cyan);
  font-weight: 700;
}
.rail-nav__link[aria-current="page"] .rail-nav__index { color: rgba(7,26,20,.6); }

.rail-nav__extras {
  display: none;
  gap: 8px;
  flex-direction: column;
}

.rail-extra {
  display: block;
  text-decoration: none;
  border: 1px solid var(--ml-line);
  border-left: 2px solid var(--ml-orange);
  border-radius: var(--ml-radius);
  padding: 9px 12px;
  background: rgba(15,42,33,.72);
}
.rail-extra__k {
  display: block;
  font-family: var(--ml-font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--ml-orange);
  text-transform: uppercase;
}
.rail-extra__v {
  display: block;
  font-size: 13px;
  color: var(--ml-sage);
  line-height: 1.45;
}
.rail-extra:hover { border-color: var(--ml-cyan); background: rgba(59,240,208,.07); }

/* ---------- shared text utils ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--ml-font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ml-orange);
  border-bottom: 1px solid var(--ml-orange-deep);
  padding-bottom: 3px;
  margin-bottom: 14px;
}
.section-title { margin-bottom: .35em; }
.lede { font-size: clamp(17px, 1.5vw, 20px); color: var(--ml-chalk); line-height: 1.7; }
.note { font-size: 13px; color: var(--ml-sage); line-height: 1.7; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ml-font-body);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1;
  padding: 13px 20px;
  border-radius: var(--ml-radius);
  border: 1px solid var(--ml-line);
  background: transparent;
  color: var(--ml-chalk);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn:hover { border-color: var(--ml-cyan); color: var(--ml-cyan); transform: translateY(-1px); }
.btn--primary { background: var(--ml-cyan); border-color: var(--ml-cyan); color: #04120E; }
.btn--primary:hover { background: var(--ml-cyan-soft); border-color: var(--ml-cyan-soft); color: #04120E; }
.btn--ghost { border-color: var(--ml-line); color: var(--ml-sage); }
.btn--ghost:hover { color: var(--ml-chalk); background: rgba(59,240,208,.08); }
.btn--accent { border-color: var(--ml-orange); color: var(--ml-orange); }
.btn--accent:hover { background: var(--ml-orange); color: #180A00; border-color: var(--ml-orange); }

/* ---------- breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ml-sage);
  font-family: var(--ml-font-mono);
  letter-spacing: .04em;
  margin: 0 0 20px;
}
.breadcrumbs__item { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumbs__item + .breadcrumbs__item::before { content: "/"; color: var(--ml-line); }
.breadcrumbs a { color: var(--ml-sage); text-decoration: none; }
.breadcrumbs a:hover { color: var(--ml-cyan); }

/* ---------- containers / grids ---------- */
.prose { max-width: 72ch; }
.prose--narrow { max-width: 58ch; }
.prose p { color: #DDE8E1; }

.grid { display: grid; gap: var(--ml-gap); }
.grid--split { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); align-items: start; }
.grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--rail { grid-template-columns: minmax(0, 240px) minmax(0, 1fr); align-items: start; }

/* ---------- panels ---------- */
.panel {
  position: relative;
  background: linear-gradient(180deg, rgba(15,42,33,.92), rgba(11,33,26,.92));
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  box-shadow: var(--ml-shadow);
  padding: clamp(18px, 2.4vw, 30px);
}
.panel--raised {
  border-top: 2px solid var(--ml-cyan);
  padding-top: calc(clamp(18px, 2.4vw, 30px) - 1px);
}
.panel--flush { padding: 0; overflow: hidden; }
.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--ml-line);
  padding-bottom: 12px;
  margin-bottom: 16px;
}
.panel__head h2,
.panel__head h3 { margin: 0; }
.panel__body p:last-child { margin-bottom: 0; }

/* ---------- tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--ml-font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 2px;
  border: 1px solid var(--ml-line);
  color: var(--ml-sage);
  background: rgba(7,26,20,.7);
}
.tag--live { color: var(--ml-cyan); border-color: rgba(59,240,208,.45); background: rgba(59,240,208,.08); }
.tag--recap { color: var(--ml-orange); border-color: rgba(255,138,61,.45); background: rgba(255,138,61,.08); }

/* ---------- band chart ---------- */
.band-chart {
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  background:
    repeating-linear-gradient(90deg, rgba(42,74,62,.35) 0 1px, transparent 1px 25%),
    rgba(7,26,20,.7);
  padding: 14px 16px 10px;
}
.band-chart__track {
  position: relative;
  height: 12px;
  border-radius: 6px;
  background: rgba(42,74,62,.55);
  overflow: hidden;
}
.band-chart__range {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--ml-orange-deep), var(--ml-orange));
  box-shadow: 0 0 14px -4px rgba(255,138,61,.8);
}
.band-chart__tick {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--ml-font-mono);
  font-size: 10.5px;
  color: var(--ml-sage);
  letter-spacing: .06em;
}
.band-chart__tick span:nth-child(2n) { color: var(--ml-amber); }

/* ---------- media frames ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--ml-radius);
  border: 1px solid var(--ml-line);
  background:
    radial-gradient(circle at 30% 20%, rgba(59,240,208,.14), transparent 60%),
    linear-gradient(160deg, #0F2A21, #071A14 70%);
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(42,74,62,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(42,74,62,.4) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .5;
  pointer-events: none;
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; object-position: var(--media-focus, 50% 50%); display: block; }
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* ---------- reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .34s ease, transform .34s ease;
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(48px, 7vw, 96px);
  background: linear-gradient(180deg, rgba(15,42,33,.85), rgba(7,26,20,.98));
  border-top: 1px solid var(--ml-line);
}
.footer__grid {
  width: min(1440px, 100%);
  margin-inline: auto;
  padding: clamp(32px, 4.4vw, 56px) clamp(16px, 3vw, 44px) 26px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr)) minmax(0, 1.4fr);
  gap: clamp(20px, 2.6vw, 40px);
}
.footer__col--brand { max-width: 34ch; }
.footer__title {
  font-family: var(--ml-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ml-orange);
  margin: 0 0 14px;
}
.footer__note { font-size: 13px; color: var(--ml-sage); margin: 14px 0 0; line-height: 1.7; }
.footer__links { display: flex; flex-direction: column; gap: 9px; }
.footer__links a,
.footer__contact a {
  color: var(--ml-chalk);
  text-decoration: none;
  font-size: 14.5px;
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}
.footer__links a:hover,
.footer__contact a:hover { color: var(--ml-cyan); border-bottom-color: var(--ml-cyan); }
.footer__contact { display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; color: var(--ml-sage); line-height: 1.6; }
.footer__legal {
  width: min(1440px, 100%);
  margin-inline: auto;
  padding: 16px clamp(16px, 3vw, 44px) 28px;
  border-top: 1px solid var(--ml-line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  align-items: center;
  font-family: var(--ml-font-mono);
  font-size: 11.5px;
  color: var(--ml-sage);
  letter-spacing: .04em;
}
.footer__copyright, .footer__icp { margin: 0; }

/* ---------- tablet ---------- */
@media (max-width: 1080px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__col--brand { grid-column: 1 / -1; max-width: none; }
  .grid--thirds { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--rail { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .rail-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    flex: 1 1 100%;
    padding: 16px 0 6px;
    border-top: 1px solid var(--ml-line);
    margin-top: 6px;
  }
  .rail-nav[data-open="true"] { display: flex; }
  .rail-nav__list { flex-direction: column; gap: 2px; }
  .rail-nav__link { padding: 12px 12px; font-size: 16px; border-color: rgba(42,74,62,.6); }
  .rail-nav__index { font-size: 11px; }
  .rail-nav__extras { display: flex; }
  .grid--split { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .brand__tagline { display: none; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .grid--thirds { grid-template-columns: minmax(0, 1fr); }
  .btn { width: 100%; }
  .footer__legal { flex-direction: column; align-items: flex-start; }
}

/* ---------- desktop rail ---------- */
@media (min-width: 961px) {
  body { padding-left: var(--ml-rail); }
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--ml-rail);
    border-bottom: 0;
    border-right: 1px solid var(--ml-line);
    overflow-y: auto;
    background:
      linear-gradient(180deg, rgba(15,42,33,.98), rgba(7,26,20,.98));
  }
  .site-header__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 22px;
    padding: 26px 18px 26px 22px;
    min-height: 100%;
  }
  .brand { flex-direction: row; }
  .nav-toggle { display: none; }
  .rail-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 20px;
    flex: 1 1 auto;
    border-top: 1px solid var(--ml-line);
    padding-top: 20px;
    margin-top: 0;
  }
  .rail-nav__list { flex-direction: column; gap: 2px; }
  .rail-nav__link {
    padding: 9px 10px 9px 12px;
    font-size: 15px;
    justify-content: flex-start;
    border-left: 2px solid transparent;
    border-radius: 0 var(--ml-radius) var(--ml-radius) 0;
  }
  .rail-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 2px;
    height: 0;
    background: var(--ml-orange);
    transform: translateY(-50%);
    transition: height .18s ease;
  }
  .rail-nav__link:hover::after { height: 60%; }
  .rail-nav__link[aria-current="page"] {
    background: rgba(59,240,208,.1);
    color: var(--ml-cyan);
    border-color: transparent;
    border-left-color: var(--ml-orange);
    font-weight: 700;
  }
  .rail-nav__link[aria-current="page"] .rail-nav__index { color: var(--ml-cyan-soft); }
  .rail-nav__extras { display: flex; margin-top: auto; }
  .scroll-progress { left: var(--ml-rail); }
  .ml-skip:focus-visible { left: calc(var(--ml-rail) + 8px); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
  .scroll-progress__bar { transition: none; }
}