/* =========================================================
   云开赛场 · 共享样式 /assets/site.css
   赛场指挥室：暗底分区 + 电光青描边 + 荧光黄绿数据 + 纸张叠层
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, p, ul, ol, figure, blockquote, hr { margin: 0; }

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

img, svg { max-width: 100%; }

button { font: inherit; color: inherit; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink-900: #061713;
  --ink-800: #0E2A23;
  --indigo:  #1B1435;
  --wine:    #2B0E18;
  --cyan:    #22E0D0;
  --lime:    #C7FF4A;
  --ember:   #FF5A3C;
  --paper:   #EAF7F4;
  --mist:    #7FA39C;
  --edge:    #D8C9A4;

  --font-display: 'Oswald', 'Bebas Neue', 'Arial Narrow', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', 'SFMono-Regular', Consolas, 'Courier New', monospace;

  --rail-w: 278px;
  --shell-max: 1180px;

  --line: rgba(34, 224, 208, 0.22);
  --line-soft: rgba(216, 201, 164, 0.18);
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(120% 80% at 108% -10%, rgba(27, 20, 53, 0.9), rgba(27, 20, 53, 0) 58%),
    radial-gradient(90% 70% at -10% 108%, rgba(43, 14, 24, 0.72), rgba(43, 14, 24, 0) 62%),
    linear-gradient(180deg, #061713 0%, #061713 42%, #04110e 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 224, 208, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 224, 208, 0.05) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 0%, rgba(0, 0, 0, 0.35) 70%, transparent 100%);
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 0%, rgba(0, 0, 0, 0.35) 70%, transparent 100%);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(2.1rem, 6vw, 3.9rem); }
h2 { font-size: clamp(1.55rem, 3.2vw, 2.35rem); }
h3 { font-size: clamp(1.12rem, 2vw, 1.45rem); }

p { max-width: 74ch; }

a { color: var(--cyan); }

#main-content {
  display: block;
  position: relative;
  z-index: 1;
}
#main-content:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 4. Layout ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 22px;
}
@media (min-width: 768px)  { .shell { padding: 0 40px; } }
@media (min-width: 1280px) { .shell { padding: 0 56px; } }

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 26px;
}
.grid > * { grid-column: span 12; }
@media (min-width: 860px) {
  .grid--5-7 > *:nth-child(1) { grid-column: span 5; }
  .grid--5-7 > *:nth-child(2) { grid-column: span 7; }
  .grid--4-8 > *:nth-child(1) { grid-column: span 4; }
  .grid--4-8 > *:nth-child(2) { grid-column: span 8; }
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  padding-bottom: 16px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

/* ---------- 5. Text ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--lime);
}

.lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.14rem);
  line-height: 1.85;
  color: rgba(234, 247, 244, 0.82);
}

.rule {
  height: 1px;
  border: 0;
  margin: 32px 0;
  background: linear-gradient(90deg, var(--cyan), rgba(34, 224, 208, 0.05));
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: #06231c;
  background: var(--lime);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.tag--wine { background: var(--ember); color: #1a0603; }
.tag--ghost {
  background: transparent;
  color: var(--edge);
  box-shadow: inset 0 0 0 1px rgba(216, 201, 164, 0.45);
  clip-path: none;
}

/* ---------- 6. Components ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease,
              box-shadow 0.2s ease, transform 0.2s ease;
}
.btn--cta {
  color: #06231c;
  background: var(--lime);
  border-color: var(--lime);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  box-shadow: 0 10px 30px rgba(199, 255, 74, 0.14);
}
.btn--cta:hover {
  color: #04211c;
  background: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-1px);
  box-shadow: 0 14px 34px rgba(34, 224, 208, 0.24);
}
.btn--ghost {
  color: var(--cyan);
  background: transparent;
  border-color: rgba(34, 224, 208, 0.55);
}
.btn--ghost:hover {
  color: var(--paper);
  background: rgba(34, 224, 208, 0.13);
  border-color: var(--cyan);
}

.plate {
  position: relative;
  padding: 26px 24px;
  background: linear-gradient(160deg, rgba(14, 42, 35, 0.94), rgba(6, 23, 19, 0.96));
  border: 1px solid var(--line);
  box-shadow: 12px 12px 0 -6px rgba(216, 201, 164, 0.13), 0 18px 40px rgba(0, 0, 0, 0.35);
}
.plate--wine {
  background: linear-gradient(160deg, rgba(43, 14, 24, 0.95), rgba(6, 23, 19, 0.95));
  border-color: rgba(255, 90, 60, 0.32);
}
.plate--indigo {
  background: linear-gradient(160deg, rgba(27, 20, 53, 0.95), rgba(6, 23, 19, 0.95));
  border-color: rgba(34, 224, 208, 0.3);
}
.plate__title {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.stat { display: block; }
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--lime);
}
.stat__label {
  display: block;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist);
}
.stat--score .stat__num { color: var(--ember); }

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  background-image:
    repeating-linear-gradient(135deg, rgba(34, 224, 208, 0.06) 0 2px, transparent 2px 14px),
    linear-gradient(150deg, var(--ink-800), var(--indigo) 62%, var(--wine));
}
.media-frame::before {
  content: "";
  display: block;
  padding-top: var(--ratio, 60%);
}
.media-frame > img,
.media-frame > svg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.chip {
  display: inline-block;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid rgba(34, 224, 208, 0.38);
  background: rgba(34, 224, 208, 0.05);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.chip:hover {
  color: var(--paper);
  background: rgba(34, 224, 208, 0.16);
  border-color: var(--cyan);
  transform: translateY(-1px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 208, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.link-arrow::after {
  content: "\2192";
  transition: transform 0.2s ease;
}
.link-arrow:hover {
  color: var(--lime);
  border-color: var(--lime);
}
.link-arrow:hover::after { transform: translateX(4px); }

.breadcrumbs { padding-top: 18px; }
.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.breadcrumbs__list li { display: flex; align-items: center; }
.breadcrumbs__list li + li::before {
  content: "/";
  margin: 0 10px;
  color: rgba(127, 163, 156, 0.45);
}
.breadcrumbs__list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.breadcrumbs__list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 7. Header · 侧边轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 60;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(14, 42, 35, 0.96) 0%, rgba(6, 23, 19, 0.98) 58%, rgba(11, 20, 34, 1) 100%);
  border-right: 1px solid var(--line);
  box-shadow: 18px 0 44px rgba(0, 0, 0, 0.45);
}
.site-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: -1px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--cyan) 18%, var(--lime) 52%, var(--ember) 84%, transparent);
  opacity: 0.55;
}

.skip-link {
  position: absolute;
  left: 14px;
  top: -70px;
  z-index: 90;
  padding: 10px 16px;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.14em;
  color: #06231c;
  background: var(--lime);
  text-decoration: none;
  transition: top 0.18s ease;
}
.skip-link:focus { top: 14px; }

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 22px 24px 18px;
  border-bottom: 1px dashed var(--line-soft);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand__mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--lime);
  border: 1px solid rgba(34, 224, 208, 0.5);
  background: rgba(34, 224, 208, 0.09);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.brand__text { display: block; min-width: 0; }
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.1;
  color: var(--paper);
}
.brand__tagline {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  color: var(--cyan);
  background: rgba(34, 224, 208, 0.07);
  border: 1px solid rgba(34, 224, 208, 0.4);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.nav-toggle:hover {
  color: var(--paper);
  background: rgba(34, 224, 208, 0.16);
  border-color: var(--cyan);
}
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: top 0.2s ease, bottom 0.2s ease, transform 0.2s ease;
}
.nav-toggle__bars::before { top: 2px; }
.nav-toggle__bars::after { bottom: 2px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 5px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { bottom: 5px; transform: rotate(-45deg); }
.nav-toggle__label { white-space: nowrap; }

.site-nav {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 18px 0 6px;
  overflow-y: auto;
}

.site-nav__list {
  display: grid;
  gap: 2px;
}
.site-nav__item { display: block; }
.site-nav__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 24px;
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.22s ease, border-color 0.22s ease, color 0.22s ease, padding 0.22s ease;
}
.site-nav__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
  transition: color 0.22s ease;
}
.site-nav__text { display: block; }
.site-nav__link:hover {
  padding-left: 30px;
  color: var(--lime);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(34, 224, 208, 0.16), rgba(34, 224, 208, 0));
}
.site-nav__link:hover .site-nav__idx { color: var(--cyan); }
.site-nav__link[aria-current="page"] {
  color: var(--lime);
  border-left-color: var(--lime);
  background: linear-gradient(90deg, rgba(199, 255, 74, 0.18), rgba(199, 255, 74, 0));
}
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--lime); }

.nav-quickbar {
  margin-top: 20px;
  padding: 18px 24px 4px;
  border-top: 1px dashed var(--line-soft);
}
.nav-quickbar__label {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
}
.nav-quickbar__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav-cta {
  margin: 20px 24px 24px;
  font-size: 14px;
  letter-spacing: 0.2em;
}

.rail-board {
  flex: 0 0 auto;
  padding: 14px 0 18px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(27, 20, 53, 0.55), rgba(6, 23, 19, 0.9));
}
.rail-board__title {
  padding: 0 24px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.board-view {
  position: relative;
  height: 126px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 14%, #000 86%, transparent);
}
.board-track {
  display: flex;
  flex-direction: column;
  animation: boardScroll 30s linear infinite;
}
.rail-board:hover .board-track { animation-play-state: paused; }
@keyframes boardScroll {
  from { transform: translateY(0); }
  to   { transform: translateY(-50%); }
}
.board-list { display: grid; }
.board-list__item {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 5px 24px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
}
.board-list__rank { color: var(--ember); }
.board-list__team {
  color: var(--paper);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.board-list__pts { color: var(--lime); }

/* ---------- 8. Footer ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  padding-bottom: 28px;
  background: linear-gradient(180deg, rgba(27, 20, 53, 0.9) 0%, rgba(6, 23, 19, 0.97) 46%, #04110e 100%);
  border-top: 1px solid var(--line);
}
.site-footer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--lime) 46%, var(--ember) 78%, transparent);
  opacity: 0.85;
}

.footer-inner {
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 46px 22px 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
@media (min-width: 760px) {
  .footer-inner {
    padding: 54px 40px 0;
    grid-template-columns: 1fr 1.5fr;
  }
  .footer-contact { grid-column: 1 / -1; }
}
@media (min-width: 1100px) {
  .footer-inner {
    padding: 60px 56px 0;
    grid-template-columns: 1.05fr 1.9fr 1.15fr;
    gap: 44px;
  }
  .footer-contact { grid-column: auto; }
}

.footer-brand__mark {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper);
}
.footer-brand__tag {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.footer-brand__note {
  margin-top: 14px;
  max-width: 34ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 26px;
}
.footer-col__title {
  margin-bottom: 12px;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
  border-bottom: 1px dashed var(--line-soft);
}
.footer-col__list { display: grid; gap: 9px; }
.footer-col__list a {
  display: inline-block;
  font-size: 14px;
  color: rgba(234, 247, 244, 0.85);
  text-decoration: none;
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 1px;
  transition: background-size 0.25s ease, color 0.2s ease;
}
.footer-col__list a:hover {
  color: var(--cyan);
  background-size: 100% 1px;
}

.contact-list { display: grid; gap: 12px; }
.contact-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(6, 23, 19, 0.62);
  border: 1px solid var(--line-soft);
}
.contact-item__body { display: block; min-width: 0; }
.contact-item__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--mist);
}
.contact-item__val {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.copy-btn {
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(34, 224, 208, 0.45);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.copy-btn:hover {
  background: rgba(34, 224, 208, 0.14);
  border-color: var(--cyan);
}
.copy-btn[data-copied="true"] {
  color: #06231c;
  background: var(--lime);
  border-color: var(--lime);
}

.footer-base {
  max-width: var(--shell-max);
  margin: 38px auto 0;
  padding: 20px 22px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}
.footer-base__legal { color: var(--edge); }
.footer-base__copy { color: var(--mist); }
@media (min-width: 768px)  { .footer-base { padding: 22px 40px 0; } }
@media (min-width: 1280px) { .footer-base { padding: 24px 56px 0; } }

/* ---------- 9. Reveal ---------- */
html.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
html.has-js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 10. Tablet / Mobile ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
}

@media (max-width: 1023px) {
  .site-header {
    position: sticky;
    top: 0;
    left: auto;
    right: auto;
    bottom: auto;
    width: 100%;
    overflow: visible;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.5);
  }
  .site-header::after { display: none; }
  .header-top {
    min-height: 64px;
    padding: 10px 16px;
    border-bottom: 0;
  }
  .nav-toggle { display: inline-flex; }
  .brand__name { font-size: 20px; }
  .brand__mark { width: 38px; height: 38px; font-size: 13px; }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    max-height: calc(100dvh - 64px);
    padding: 14px 0 28px;
    overflow-y: auto;
    background: linear-gradient(180deg, #081d18 0%, #061713 100%);
    border-bottom: 1px solid rgba(34, 224, 208, 0.32);
    box-shadow: 0 34px 64px rgba(0, 0, 0, 0.62);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  }
  .site-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .site-nav__link { padding: 13px 20px; font-size: 16px; }
  .site-nav__link:hover { padding-left: 26px; }
  .nav-quickbar { padding: 18px 20px 4px; }
  .nav-cta { margin: 22px 20px 0; }

  .rail-board { display: none; }

  html.nav-open,
  html.nav-open body { overflow: hidden; }
}

/* ---------- 11. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .board-track { animation: none !important; transform: none !important; }
  html.has-js [data-reveal] { opacity: 1 !important; transform: none !important; }
}