/* ==========================================================================
   云体育官网 · 共享站点样式 /assets/site.css
   1. Reset  2. Tokens  3. Typography  4. Utilities  5. Buttons & Labels
   6. Header  7. Footer  8. Base components  9. Responsive  10. Motion
   ========================================================================== */

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-ink);
  background: var(--c-cloud);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video { display: block; max-width: 100%; height: auto; }

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; text-decoration: none; }

p, figure, blockquote, dl, dd { margin: 0; }

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

table { border-collapse: collapse; width: 100%; }

::selection { background: var(--c-lime); color: var(--c-ink); }

/* ---------- 2. Tokens ---------- */
:root {
  /* palette */
  --c-mist-900: #082A33;
  --c-mist-700: #0F4C5C;
  --c-mist-500: #2E8FA3;
  --c-cloud:    #F6FBF8;
  --c-fog:      #D9E8E4;
  --c-lime:     #B8FF3D;
  --c-lime-deep:#5BAF18;
  --c-sand:     #E9B96E;
  --c-ink:      #0B1B1E;
  --c-red:      #D94932;

  /* type */
  --font-display: "HarmonyOS Sans SC", "Sora", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-data: "IBM Plex Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* shape */
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --radius-img: 20px;

  /* motion */
  --dur: 240ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  /* layout */
  --wrap: 1440px;
  --header-h: 82px;
  --gutter: clamp(18px, 4vw, 56px);
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--c-mist-900);
  margin: 0;
}

h1 { font-size: clamp(2.4rem, 6vw, 5.8rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.75rem, 3.4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.75rem); }
h4 { font-size: 1.0625rem; letter-spacing: -0.01em; }

strong { font-weight: 700; }

code, kbd, samp, time, .num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
}

/* ---------- 4. Utilities ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 6vw, 88px); }

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -120px;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: var(--c-lime);
  color: var(--c-ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 14px; }

#main-content { scroll-margin-top: calc(var(--header-h) + 20px); }

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

/* ---------- 5. Buttons, labels, pills ---------- */
.btn {
  --btn-bg: var(--c-mist-700);
  --btn-fg: var(--c-cloud);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  background: var(--btn-bg);
  color: var(--btn-fg);
  transition: background-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(1px); }

.btn--lime { --btn-bg: var(--c-lime); --btn-fg: var(--c-ink); }
.btn--lime:hover { --btn-bg: #CAFF6E; box-shadow: 0 18px 34px -24px rgba(91, 175, 24, 0.9); }

.btn--sand { --btn-bg: var(--c-sand); --btn-fg: #3A2405; }
.btn--sand:hover { --btn-bg: #F0C787; }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--c-cloud);
  border-color: rgba(246, 251, 248, 0.42);
}
.btn--ghost:hover {
  --btn-bg: rgba(246, 251, 248, 0.1);
  border-color: var(--c-lime);
  color: var(--c-lime);
}

.btn--sm { padding: 10px 18px; font-size: 13px; }
.btn--lg { padding: 18px 34px; font-size: 16px; }

.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(46, 143, 163, 0.3);
  background: rgba(46, 143, 163, 0.12);
  color: var(--c-mist-700);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.4;
}
.label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-lime-deep);
  flex: none;
}

.label--sand {
  border-color: rgba(233, 185, 110, 0.55);
  background: rgba(233, 185, 110, 0.18);
  color: #8A5F16;
}
.label--sand::before { background: var(--c-sand); }

.label--invert {
  border-color: rgba(184, 255, 61, 0.4);
  background: rgba(184, 255, 61, 0.14);
  color: var(--c-lime);
}
.label--invert::before { background: var(--c-lime); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(46, 143, 163, 0.24);
  background: rgba(46, 143, 163, 0.1);
  color: var(--c-mist-700);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.pill:hover { background: rgba(46, 143, 163, 0.18); border-color: var(--c-mist-500); }
.pill--active,
.pill[aria-pressed="true"] {
  background: var(--c-mist-700);
  border-color: var(--c-mist-700);
  color: var(--c-cloud);
}

/* ---------- 6. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(8, 42, 51, 0.72);
  color: var(--c-cloud);
  border-bottom: 1px solid rgba(184, 255, 61, 0.14);
  transition: background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.site-header[data-scrolled] {
  background: rgba(8, 42, 51, 0.97);
  border-bottom-color: rgba(184, 255, 61, 0.34);
  box-shadow: 0 22px 44px -36px rgba(0, 0, 0, 0.95);
}

.header-bar {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  padding: 10px 0;
  min-width: 0;
  color: inherit;
}
.brand-text { display: block; min-width: 0; }
.brand-name {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: #FFFFFF;
}
.brand-sub {
  display: block;
  margin-top: 3px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.35;
  color: rgba(246, 251, 248, 0.62);
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  background: linear-gradient(150deg, var(--c-mist-500) 0%, var(--c-mist-700) 55%, var(--c-mist-900) 100%);
  box-shadow: inset 0 0 0 1px rgba(246, 251, 248, 0.26);
  overflow: hidden;
}
.brand-mark::before {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 12px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-lime);
}
.brand-mark::after {
  content: "";
  position: absolute;
  top: 11px;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-lime);
  transform: translateX(-50%);
  box-shadow: 0 0 0 4px rgba(184, 255, 61, 0.2);
}

.site-nav { display: flex; align-items: center; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 1vw, 14px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 12px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: rgba(246, 251, 248, 0.84);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.nav-link:hover { color: #FFFFFF; background: rgba(184, 255, 61, 0.1); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: #FFFFFF; }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-head,
.nav-foot,
.nav-scrim { display: none; }

.header-tools {
  display: flex;
  align-items: center;
  gap: clamp(6px, 0.8vw, 12px);
}

.tool-link {
  padding: 7px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
  color: rgba(246, 251, 248, 0.74);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.tool-link:hover { color: var(--c-lime); background: rgba(184, 255, 61, 0.12); }

.tool-link--guide {
  padding: 6px 12px;
  border-color: rgba(233, 185, 110, 0.42);
  color: var(--c-sand);
}
.tool-link--guide:hover {
  color: #3A2405;
  background: var(--c-sand);
  border-color: var(--c-sand);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 16px 9px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(184, 255, 61, 0.4);
  background: rgba(184, 255, 61, 0.1);
  color: var(--c-cloud);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover { background: rgba(184, 255, 61, 0.2); border-color: var(--c-lime); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-lime);
  transition: background-color var(--dur) var(--ease);
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-lime);
  transition: transform var(--dur) var(--ease);
}
.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after { top: 5px; }

.site-header[data-nav-open] .nav-toggle-bars { background: transparent; }
.site-header[data-nav-open] .nav-toggle-bars::before { transform: translateY(5px) rotate(45deg); }
.site-header[data-nav-open] .nav-toggle-bars::after { transform: translateY(-5px) rotate(-45deg); }

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--c-lime);
  transform: scaleX(0);
  transform-origin: left center;
  opacity: 0.9;
}

/* ---------- 7. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  padding-top: clamp(8px, 1.4vw, 16px);
  background:
    radial-gradient(120% 80% at 12% 0%, rgba(46, 143, 163, 0.4) 0%, rgba(46, 143, 163, 0) 58%),
    linear-gradient(180deg, var(--c-mist-700) 0%, var(--c-mist-900) 46%, var(--c-mist-900) 100%);
  color: rgba(246, 251, 248, 0.78);
  border-radius: clamp(28px, 4vw, 56px) clamp(28px, 4vw, 56px) 0 0;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(24px, 8vw, 160px);
  right: clamp(24px, 8vw, 160px);
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--c-lime) 20%, var(--c-lime) 80%, transparent 100%);
  opacity: 0.75;
}

.footer-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(44px, 6vw, 84px) var(--gutter) clamp(26px, 3vw, 40px);
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 2.1fr) minmax(0, 1.35fr);
  gap: clamp(28px, 4vw, 56px);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #FFFFFF;
}
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #FFFFFF;
}
.brand-mark--footer { width: 36px; height: 36px; border-radius: 12px; }

.footer-brandline {
  margin-top: 16px;
  max-width: 30ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 251, 248, 0.62);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

.footer-col-title {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--c-sand);
}

.footer-links { display: grid; gap: 10px; }

.footer-link {
  display: inline-block;
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(246, 251, 248, 0.78);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-link:hover { color: var(--c-lime); border-bottom-color: rgba(184, 255, 61, 0.6); }

.footer-contact-list { display: grid; gap: 14px; }

.footer-contact-item dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1.5;
  color: rgba(246, 251, 248, 0.46);
}
.footer-contact-item dd {
  margin: 2px 0 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(246, 251, 248, 0.86);
  overflow-wrap: anywhere;
}

.footer-legal {
  grid-column: 1 / -1;
  margin-top: clamp(8px, 1.6vw, 20px);
  padding-top: clamp(18px, 2vw, 26px);
  border-top: 1px solid rgba(246, 251, 248, 0.14);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 28px;
}

.footer-note {
  max-width: 56ch;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(246, 251, 248, 0.52);
}

.footer-fine {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  font-size: 12.5px;
  color: rgba(246, 251, 248, 0.52);
}
.footer-copy { letter-spacing: 0.02em; }
.footer-icp {
  font-family: var(--font-data);
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(246, 251, 248, 0.18);
  color: rgba(246, 251, 248, 0.66);
}

/* ---------- 8. Base components ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 clamp(16px, 2vw, 26px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(15, 76, 92, 0.62);
}
.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: "›"; color: var(--c-mist-500); }
.breadcrumb a {
  color: inherit;
  border-bottom: 1px solid rgba(15, 76, 92, 0.24);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.breadcrumb a:hover { color: var(--c-mist-700); border-bottom-color: var(--c-lime-deep); }

.prose {
  max-width: 70ch;
  font-size: clamp(1rem, 1.05vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(11, 27, 30, 0.86);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2,
.prose h3 { margin-top: 1.9em; }
.prose ul,
.prose ol { padding-left: 1.35em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: 0.45em; }
.prose a {
  color: var(--c-mist-700);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}
.prose a:hover { color: var(--c-lime-deep); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  align-items: end;
  gap: clamp(16px, 3vw, 48px);
  margin-bottom: clamp(24px, 3vw, 40px);
}
.section-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-mist-900);
}
.section-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(15, 76, 92, 0.72);
}

.grid { display: grid; gap: clamp(16px, 2vw, 28px); }
.grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--editorial { grid-template-columns: minmax(0, 7fr) minmax(0, 2fr) minmax(0, 3fr); }

.card {
  display: block;
  padding: clamp(20px, 2.4vw, 32px);
  border: 1px solid var(--c-fog);
  border-radius: var(--radius-lg);
  background: var(--c-cloud);
  color: inherit;
  transition: transform var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--c-mist-500);
  box-shadow: 0 24px 48px -34px rgba(8, 42, 51, 0.6);
}

.figure {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-img);
  overflow: hidden;
  background:
    linear-gradient(160deg, var(--c-mist-700) 0%, var(--c-mist-500) 58%, var(--c-fog) 100%);
}
.figure > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(8, 42, 51, 0) 52%, rgba(8, 42, 51, 0.42) 100%);
}
.figure--wide { aspect-ratio: 21 / 9; }
.figure--square { aspect-ratio: 1 / 1; }
.figure--portrait { aspect-ratio: 3 / 4; }

.figure-caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: rgba(15, 76, 92, 0.66);
}

.data-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(14px, 2vw, 32px);
  padding: clamp(14px, 1.6vw, 20px) clamp(18px, 2vw, 30px);
  border-radius: 22px;
  background: linear-gradient(120deg, rgba(15, 76, 92, 0.97) 0%, rgba(8, 42, 51, 0.97) 100%);
  color: var(--c-cloud);
}

.stat { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.stat-value {
  font-family: var(--font-data);
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--c-lime);
}
.stat-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.5;
  color: rgba(246, 251, 248, 0.66);
}

/* ---------- 9. Responsive ---------- */
@media (min-width: 1081px) {
  .site-header {
    -webkit-backdrop-filter: blur(14px) saturate(150%);
    backdrop-filter: blur(14px) saturate(150%);
  }
  .site-header[data-scrolled] {
    -webkit-backdrop-filter: blur(8px) saturate(140%);
    backdrop-filter: blur(8px) saturate(140%);
  }
}

@media (max-width: 1319px) {
  .tool-link:not(.tool-link--guide) { display: none; }
}

@media (max-width: 1080px) {
  :root { --header-h: 70px; }

  .nav-toggle { display: inline-flex; }

  .header-tools .tool-link { display: none; }

  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(330px, 86vw);
    z-index: 130;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: clamp(18px, 4vw, 28px);
    background: linear-gradient(170deg, var(--c-mist-700) 0%, var(--c-mist-900) 58%, var(--c-mist-900) 100%);
    color: var(--c-cloud);
    border-right: 1px solid rgba(184, 255, 61, 0.18);
    box-shadow: 28px 0 70px -40px rgba(0, 0, 0, 0.85);
    transform: translateX(-104%);
    transition: transform 300ms var(--ease);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .site-nav[data-open] { transform: translateX(0); }

  .nav-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(246, 251, 248, 0.14);
  }
  .nav-head-label {
    font-family: var(--font-data);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(246, 251, 248, 0.56);
  }
  .nav-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(246, 251, 248, 0.28);
    background: transparent;
    color: var(--c-cloud);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: background-color var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                color var(--dur) var(--ease);
  }
  .nav-close:hover {
    background: rgba(184, 255, 61, 0.16);
    border-color: var(--c-lime);
    color: var(--c-lime);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin-top: 14px;
  }
  .nav-link {
    display: block;
    padding: 13px 14px;
    border-radius: 14px;
    font-size: 18px;
    font-weight: 600;
    color: rgba(246, 251, 248, 0.88);
  }
  .nav-link::after { left: 14px; right: 14px; bottom: 7px; }
  .nav-link:hover { background: rgba(184, 255, 61, 0.12); }

  .nav-foot {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(246, 251, 248, 0.14);
  }
  .nav-foot-label {
    font-family: var(--font-data);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(246, 251, 248, 0.5);
  }
  .nav-foot-num {
    font-family: var(--font-data);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--c-lime);
  }
  .nav-foot-link {
    margin-top: 10px;
    display: inline-block;
    padding: 9px 14px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(233, 185, 110, 0.5);
    color: var(--c-sand);
    font-size: 13px;
    font-weight: 500;
    line-height: 1.5;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .nav-foot-link:hover { background: var(--c-sand); color: #3A2405; }

  .nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 125;
    background: rgba(8, 42, 51, 0.62);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur) var(--ease);
  }
  .site-header[data-nav-open] .nav-scrim {
    opacity: 1;
    pointer-events: auto;
  }

  body.is-nav-open { overflow: hidden; }
}

@media (max-width: 899px) {
  .header-tools .btn { display: none; }
  .brand-sub { display: none; }
}

@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
  .footer-brandline { max-width: 46ch; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 900px) {
  .grid--halves,
  .grid--thirds,
  .grid--editorial { grid-template-columns: minmax(0, 1fr); }
  .section-head { grid-template-columns: minmax(0, 1fr); align-items: start; }
}

@media (max-width: 640px) {
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-fine { flex-direction: column; align-items: flex-start; gap: 8px; }
  .data-strip { gap: 16px; }
}

/* ---------- 10. Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  .btn:hover,
  .card:hover { transform: none; }
  .site-nav { transition: none; }
}