/* 博澳看台 / 博澳体育 — 共享 Site Kit
   Path: /assets/site.css */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--c-ink); scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
main { flex: 1 0 auto; width: 100%; }

/* ---------- Design Tokens ---------- */
:root {
  --c-ink: #0A1F44;
  --c-ink-deep: #0B2A4A;
  --c-ink-soft: #14325A;
  --c-accent: #FF6B35;
  --c-accent-soft: #FF8658;
  --c-teal: #00C2B8;
  --c-teal-soft: #5DDBD4;
  --c-cream: #F5F3EF;
  --c-paper: #FDFCFA;
  --c-text: #2E2A25;
  --c-muted: #6B7280;
  --c-border: #E3E8F0;
  --c-line: rgba(255,255,255,.14);
  --font-head: "Montserrat", "PingFang SC", "Microsoft YaHei", "Arial", sans-serif;
  --font-body: "Inter", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-data: "Roboto Mono", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  --header-h: 72px;
  --header-h-m: 64px;
  --container-w: 1200px;
  --space-section: clamp(64px, 10vw, 120px);
  --ease: cubic-bezier(.25,.1,.25,1);
  --shadow: 0 18px 40px -28px rgba(10,31,68,.35);
}

/* ---------- Base Typography ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-cream);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.18;
  color: var(--c-ink);
  margin: 0 0 .55em;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(36px, 5vw, 58px); }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: clamp(20px, 2.2vw, 26px); }
h4 { font-size: 20px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }
p { margin: 0 0 1.2em; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
strong { font-weight: 700; }
::selection { background: var(--c-accent); color: #fff; }
:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 2px; }
.site-header :focus-visible,
.site-footer :focus-visible,
.folio-section--ink :focus-visible,
.folio-section--deep :focus-visible { outline-color: var(--c-teal); }

/* ---------- Utilities ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  z-index: 3000;
  top: 12px; left: 12px;
  padding: 10px 16px;
  background: var(--c-accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translateY(0); outline: none; }

/* ---------- Containers & Sections ---------- */
.folio-container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}
@media (max-width: 640px) {
  .folio-container { padding-inline: 16px; }
}
.folio-section {
  padding-block: var(--space-section);
  position: relative;
  scroll-margin-top: 96px;
}
.folio-section--cream { background: var(--c-cream); }
.folio-section--paper { background: var(--c-paper); }
.folio-section--ink {
  background-color: var(--c-ink);
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 44px 44px;
  color: rgba(255,255,255,.82);
}
.folio-section--ink h1, .folio-section--ink h2, .folio-section--ink h3,
.folio-section--ink h4, .folio-section--ink h5, .folio-section--ink h6,
.folio-section--deep h1, .folio-section--deep h2, .folio-section--deep h3,
.folio-section--deep h4, .folio-section--deep h5, .folio-section--deep h6 { color: var(--c-cream); }
.folio-section--deep { background: var(--c-ink-deep); color: rgba(255,255,255,.82); }

/* ---------- Stacked Panels ---------- */
.folio-panel {
  position: relative;
  padding: clamp(28px, 5vw, 56px);
  background: var(--c-paper);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow);
}
.folio-panel::before {
  content: attr(data-tag);
  position: absolute;
  top: 0; left: 0;
  max-width: 70%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  background: var(--c-ink);
  color: var(--c-cream);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  line-height: 1;
  padding: 8px 12px 7px;
  border-left: 3px solid var(--c-accent);
  text-transform: uppercase;
}

/* ---------- Grids ---------- */
.folio-grid { display: grid; gap: 24px; }
.folio-grid--split { grid-template-columns: 1.05fr .95fr; }
.folio-grid--3 { grid-template-columns: repeat(3, 1fr); }
.folio-grid--4 { grid-template-columns: repeat(4, 1fr); }
.folio-grid--dense { gap: 14px; }
@media (max-width: 960px) {
  .folio-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .folio-grid--split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .folio-grid--3 { grid-template-columns: 1fr; }
  .folio-grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Dense Index ---------- */
.folio-index {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-left: 1px solid var(--c-border);
  border-top: 3px solid var(--c-ink);
  background: var(--c-paper);
}
.folio-index a {
  display: block;
  padding: 16px 12px 14px;
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-paper);
  color: var(--c-ink);
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .02em;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.folio-index a:hover { background: var(--c-accent); color: #fff; }
@media (max-width: 960px) { .folio-index { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .folio-index { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Cards ---------- */
.folio-card {
  position: relative;
  background: var(--c-paper);
  border: 1px solid var(--c-border);
  padding: 24px;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}
.folio-card:hover {
  border-color: var(--c-ink);
  box-shadow: 6px 6px 0 -2px var(--c-accent), 0 20px 34px -26px rgba(10,31,68,.35);
  transform: translate(-2px, -2px);
}
.folio-card--top { border-top: 4px solid var(--c-teal); }
.folio-card--top:hover { border-top-color: var(--c-accent); }
.folio-card__title {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--c-ink);
  margin: 0 0 8px;
}
.folio-card__meta {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-muted);
  margin: 0 0 14px;
}

/* ---------- Tags ---------- */
.folio-tag {
  display: inline-block;
  background: var(--c-ink);
  color: var(--c-cream);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  line-height: 1;
  padding: 6px 9px 5px;
  border-left: 3px solid var(--c-accent);
  text-transform: uppercase;
}
.folio-tag--light { background: rgba(255,255,255,.1); color: var(--c-cream); border-left-color: var(--c-teal); }
.folio-tag--teal { background: var(--c-teal); color: var(--c-ink); border-left-color: var(--c-ink); }

/* ---------- Buttons ---------- */
.folio-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--c-accent);
  border: 2px solid var(--c-accent);
  color: #fff;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .05em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), color .2s var(--ease);
}
.folio-btn:hover { background: var(--c-accent-soft); border-color: var(--c-accent-soft); transform: translateY(-2px); }
.folio-btn--light { background: transparent; border-color: rgba(255,255,255,.45); color: #fff; }
.folio-btn--light:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.folio-btn--ink { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }
.folio-btn--ink:hover { background: var(--c-ink-soft); border-color: var(--c-ink); }
.folio-btn--teal { background: var(--c-teal); border-color: var(--c-teal); color: var(--c-ink); }
.folio-btn--teal:hover { background: var(--c-teal-soft); border-color: var(--c-teal-soft); }

/* ---------- Data Stats ---------- */
.folio-stat {
  background: var(--c-paper);
  border: 1px solid var(--c-border);
  border-top: 3px solid var(--c-teal);
  padding: 20px;
}
.folio-stat--accent { border-top-color: var(--c-accent); }
.folio-stat--dark { background: var(--c-ink-deep); border-color: rgba(255,255,255,.12); border-top-color: var(--c-accent); }
.folio-stat__value {
  display: block;
  font-family: var(--font-data);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-ink);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.folio-stat--dark .folio-stat__value { color: var(--c-cream); }
.folio-stat__label {
  display: block;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--c-muted);
  text-transform: uppercase;
}
.folio-stat--dark .folio-stat__label { color: rgba(255,255,255,.5); }

/* ---------- Prose ---------- */
.folio-prose { font-size: 16px; line-height: 1.85; color: var(--c-text); }
.folio-prose > *:first-child { margin-top: 0; }
.folio-prose h2, .folio-prose h3 { margin-top: 1.6em; }
.folio-prose a { color: var(--c-accent); text-decoration: underline; text-underline-offset: 4px; }
.folio-prose a:hover { color: var(--c-ink); }
.folio-prose blockquote { margin: 1.6em 0; padding: 14px 20px; border-left: 4px solid var(--c-accent); background: var(--c-cream); }
.folio-prose ul, .folio-prose ol { padding-left: 1.3em; margin: 0 0 1.4em; }
.folio-prose li { margin-bottom: .45em; }
.folio-prose table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: 15px; }
.folio-prose th, .folio-prose td { border: 1px solid var(--c-border); padding: 10px 12px; text-align: left; }
.folio-prose th { background: var(--c-cream); font-family: var(--font-head); font-weight: 800; }
.folio-prose code { font-family: var(--font-data); background: var(--c-cream); padding: 2px 6px; font-size: .9em; }

/* ---------- Breadcrumb ---------- */
.folio-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 28px;
  padding: 0;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-muted);
}
.folio-breadcrumb li { display: inline-flex; align-items: center; gap: 6px; }
.folio-breadcrumb li + li::before { content: "/"; font-family: var(--font-data); color: var(--c-border); }
.folio-breadcrumb a { color: var(--c-ink); text-decoration: none; transition: color .2s var(--ease); }
.folio-breadcrumb a:hover { color: var(--c-accent); }
.folio-breadcrumb [aria-current="page"] { color: var(--c-accent); }

/* ---------- Image Frame ---------- */
.folio-img {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--c-ink-deep);
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 28px 28px;
  border: 1px solid var(--c-border);
}
.folio-img--portrait { aspect-ratio: 3 / 4; }
.folio-img--wide { aspect-ratio: 21 / 9; }
.folio-img--square { aspect-ratio: 1 / 1; }
.folio-img > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.folio-img::before {
  content: attr(data-caption);
  position: absolute;
  left: 10px; bottom: 10px;
  z-index: 1;
  max-width: calc(100% - 20px);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  background: var(--c-ink);
  color: var(--c-cream);
  font-family: var(--font-data);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .06em;
  padding: 4px 8px;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1200;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(10,31,68,.78) 0%, rgba(10,31,68,.42) 72px, rgba(10,31,68,0) 150px);
  transition: opacity .25s var(--ease);
  pointer-events: none;
}
.site-header[data-scrolled] {
  background: var(--c-ink);
  border-bottom: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 14px 30px -18px rgba(4,10,28,.55);
}
.site-header[data-scrolled]::before { opacity: 0; }
.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 24px;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
}
.site-header__brand-mark {
  position: relative;
  width: 40px; height: 40px;
  flex: none;
  background: var(--c-ink-deep);
  border: 1px solid rgba(255,255,255,.26);
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--c-cream);
}
.site-header__brand-mark::before { content: "BA"; }
.site-header__brand-mark::after {
  content: "";
  position: absolute;
  right: -2px; bottom: -2px;
  width: 8px; height: 8px;
  background: var(--c-accent);
}
.site-header__brand-block { display: grid; line-height: 1.2; min-width: 0; }
.site-header__brand-name { font-family: var(--font-head); font-size: 17px; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.site-header__brand-tagline { font-family: var(--font-data); font-size: 10px; letter-spacing: .18em; color: var(--c-teal); text-transform: uppercase; margin-top: 3px; }
.site-nav__list { display: flex; align-items: center; gap: 2px; }
.site-nav__item { margin: 0; }
.site-nav__link {
  position: relative;
  display: block;
  padding: 10px 13px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .03em;
  color: rgba(255,255,255,.84);
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 5px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .22s var(--ease);
}
.site-nav__link:hover { color: #fff; }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: #fff; }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.site-nav__toggle {
  display: none;
  position: relative;
  width: 44px; height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255,255,255,.36);
  cursor: pointer;
}
.site-nav__toggle-line {
  position: absolute;
  left: 11px; right: 11px;
  height: 2px;
  background: #fff;
  transition: top .22s var(--ease), transform .22s var(--ease), opacity .18s var(--ease);
}
.site-nav__toggle-line:nth-child(1) { top: 14px; }
.site-nav__toggle-line:nth-child(2) { top: 21px; }
.site-nav__toggle-line:nth-child(3) { top: 28px; }
.site-nav__toggle.is-active .site-nav__toggle-line:nth-child(1) { top: 21px; transform: rotate(45deg); }
.site-nav__toggle.is-active .site-nav__toggle-line:nth-child(2) { opacity: 0; }
.site-nav__toggle.is-active .site-nav__toggle-line:nth-child(3) { top: 21px; transform: rotate(-45deg); }
.site-header__progress {
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 3px;
  opacity: 0;
  background: transparent;
  transition: opacity .2s var(--ease);
}
.site-header__progress span { display: block; height: 100%; width: 0%; background: var(--c-accent); }
.site-header[data-scrolled] .site-header__progress { opacity: 1; }

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  margin-top: auto;
  background: var(--c-ink);
  color: rgba(255,255,255,.78);
  border-top: 2px solid var(--c-accent);
  overflow: hidden;
}
.site-footer::after {
  content: "BOAO";
  position: absolute;
  right: 16px; bottom: 48px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(90px, 12vw, 170px);
  line-height: 1;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.07);
  pointer-events: none;
  user-select: none;
}
.site-footer__inner,
.site-footer__bar { position: relative; z-index: 1; }
.site-footer__inner {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-top: clamp(48px, 7vw, 84px);
  padding-bottom: clamp(40px, 6vw, 72px);
}
.site-footer__brand-col { min-width: 0; }
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
}
.site-footer__brand-mark {
  position: relative;
  width: 46px; height: 46px;
  flex: none;
  background: var(--c-accent);
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--c-ink);
}
.site-footer__brand-mark::before { content: "BA"; }
.site-footer__brand-mark::after {
  content: "";
  position: absolute;
  right: -3px; bottom: -3px;
  width: 10px; height: 10px;
  background: var(--c-teal);
}
.site-footer__brand-name { display: block; font-family: var(--font-head); font-size: 20px; font-weight: 800; line-height: 1.1; }
.site-footer__brand-tagline { display: block; font-family: var(--font-data); font-size: 10px; letter-spacing: .16em; color: var(--c-teal); margin-top: 5px; text-transform: uppercase; }
.site-footer__desc { margin: 20px 0 0; color: rgba(255,255,255,.56); font-size: 14px; line-height: 1.85; max-width: 380px; }
.site-footer__trust { margin: 14px 0 0; padding-left: 12px; border-left: 3px solid var(--c-accent); color: var(--c-teal); font-size: 12px; line-height: 1.7; max-width: 380px; }
.site-footer__col { min-width: 0; }
.site-footer__title {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.14);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--c-teal);
  text-transform: uppercase;
}
.site-footer__list { display: grid; gap: 10px; }
.site-footer__list li { margin: 0; }
.site-footer__list a { color: rgba(255,255,255,.72); text-decoration: none; font-size: 14px; transition: color .2s var(--ease), padding-left .2s var(--ease); }
.site-footer__list a:hover { color: var(--c-accent); padding-left: 5px; }
.site-footer__contact-line { display: flex; gap: 10px; margin: 0 0 10px; align-items: baseline; font-size: 14px; color: rgba(255,255,255,.66); }
.site-footer__contact-line span { flex: none; min-width: 30px; font-family: var(--font-data); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--c-teal); }
.site-footer__contact-line a { color: var(--c-teal); text-decoration: none; }
.site-footer__contact-line a:hover { color: var(--c-accent); }
.site-footer__note { margin: 18px 0 0; padding-top: 14px; border-top: 1px dashed rgba(255,255,255,.14); font-size: 12px; line-height: 1.7; color: rgba(255,255,255,.42); }
.site-footer__bar { background: var(--c-ink-deep); border-top: 1px solid rgba(255,255,255,.08); }
.site-footer__bar-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 18px; }
.site-footer__copyright { margin: 0; font-family: var(--font-data); font-size: 12px; color: rgba(255,255,255,.46); letter-spacing: .04em; }
.site-footer__icp { margin: 0; font-family: var(--font-data); font-size: 12px; color: rgba(255,255,255,.46); letter-spacing: .04em; }

/* ---------- Back to Top ---------- */
.folio-back-top {
  position: fixed;
  right: 20px; bottom: 20px;
  z-index: 950;
  width: 48px; height: 48px;
  margin: 0; padding: 0;
  border: 0;
  background: var(--c-accent);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 12px 26px -12px rgba(10,31,68,.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s, background-color .2s var(--ease);
}
.folio-back-top:hover { background: var(--c-teal); color: var(--c-ink); }
.folio-back-top[data-visible] { opacity: 1; visibility: visible; transform: translateY(0); }
@media (max-width: 560px) {
  .folio-back-top { right: 12px; bottom: 12px; width: 42px; height: 42px; }
}

/* ---------- Responsive Header / Nav ---------- */
@media (max-width: 960px) {
  .site-header { height: var(--header-h-m); }
  .site-header__inner { gap: 12px; padding-inline: 16px; }
  .site-header__brand-name { font-size: 15px; }
  .site-header__brand-mark { width: 36px; height: 36px; }
  .site-nav__toggle { display: block; }
  .site-nav {
    position: fixed;
    top: var(--header-h-m);
    left: 0; right: 0;
    z-index: 1100;
    background: var(--c-ink-deep);
    border-bottom: 3px solid var(--c-accent);
    max-height: calc(100vh - var(--header-h-m));
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: transform .22s var(--ease), opacity .22s var(--ease), visibility .22s;
  }
  .site-nav[data-open] { visibility: visible; opacity: 1; transform: translateY(0); }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px 20px; }
  .site-nav__link { padding: 14px 8px; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 16px; }
  .site-nav__link::after { left: 8px; right: auto; bottom: 8px; top: 8px; width: 3px; height: auto; transform: scaleY(0); transform-origin: left top; }
  .site-nav__link:hover::after,
  .site-nav__link[aria-current="page"]::after { transform: scaleY(1); }
}
@media (max-width: 960px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .site-footer__brand-col { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .site-footer__inner { grid-template-columns: 1fr; }
  .site-footer__bar-inner { flex-direction: column; text-align: center; }
}
@media (max-width: 420px) {
  .site-header__brand-tagline { display: none; }
}

/* ---------- Reduced Motion ---------- */
@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;
  }
}