/* ============================================================
   百人牛牛棋牌 / 共享站点皮肤  /assets/site.css
   墨绿绒面 · 鎏金细线 · 筹码环索引
   ============================================================ */

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

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

body,
h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }

/* ---------- tokens ---------- */
:root {
  --felt: #0B1F18;
  --felt-deep: #070F0C;
  --table: #123028;
  --line: #1F4A3B;
  --gold: #C9A227;
  --gold-bright: #F2D98A;
  --cinnabar: #B8342A;
  --cyan: #2FD9C0;
  --paper: #EDE6D6;
  --paper-warm: #F5EFE0;
  --muted: #8FA79C;
  --ink: #1A2B24;
  --gold-shadow: #7A5C12;

  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", STSong, "SimSun", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --fs-96: clamp(38px, 7vw, 96px);
  --fs-44: clamp(26px, 3.4vw, 44px);
  --fs-28: clamp(20px, 2.4vw, 28px);
  --fs-18: 18px;
  --fs-14: 14px;
  --fs-11: 11px;

  --gutter: 20px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

@media (min-width: 768px) { :root { --gutter: 32px; } }
@media (min-width: 1200px) { :root { --gutter: 48px; } }

/* ---------- base ---------- */
body {
  background-color: var(--felt);
  background-image:
    radial-gradient(1100px 620px at 82% -8%, rgba(201, 162, 39, 0.13), transparent 62%),
    radial-gradient(900px 520px at 6% 18%, rgba(47, 217, 192, 0.06), transparent 66%),
    radial-gradient(700px 420px at 50% 108%, rgba(122, 92, 18, 0.16), transparent 70%);
  background-repeat: no-repeat;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: repeating-linear-gradient(0deg, rgba(237, 230, 214, 0.016) 0 1px, transparent 1px 3px);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper);
}

::selection { background: var(--gold); color: var(--felt-deep); }

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

#main-content { display: block; }

/* ---------- layout helpers ---------- */
.shell {
  width: min(1240px, 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.section { padding-block: clamp(44px, 6.5vw, 92px); position: relative; z-index: 1; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.section-head__rule {
  flex: 1 1 120px;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}

.grid { display: grid; gap: clamp(14px, 2vw, 26px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.divider {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line), rgba(201, 162, 39, 0.22), transparent);
  margin-block: clamp(24px, 4vw, 48px);
}

/* ---------- type helpers ---------- */
.title-xl {
  font-size: var(--fs-96);
  line-height: 1.02;
  letter-spacing: 0.02em;
  text-shadow: 0 0 1px rgba(242, 217, 138, 0.75), 0 0 30px rgba(201, 162, 39, 0.22);
}

.title-lg { font-size: var(--fs-44); }
.title-md { font-size: var(--fs-28); padding-left: 14px; border-left: 2px solid var(--gold); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
}

.lead {
  font-size: var(--fs-18);
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

.num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.prose { max-width: 68ch; }
.prose p + p { margin-top: 1em; }
.prose h3 { font-size: var(--fs-28); margin-top: 1.6em; margin-bottom: 0.5em; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  color: var(--paper);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  line-height: 1.4;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease),
    color 0.24s var(--ease), transform 0.24s var(--ease);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--sm { padding: 8px 14px; font-size: 12px; letter-spacing: 0.12em; }

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--felt-deep);
  font-weight: 500;
}
.btn--gold:hover { background: var(--gold-bright); border-color: var(--gold-bright); }

.btn--ghost {
  border-color: rgba(201, 162, 39, 0.6);
  color: var(--gold-bright);
  background: rgba(201, 162, 39, 0.06);
}
.btn--ghost:hover { background: rgba(201, 162, 39, 0.16); border-color: var(--gold); }

.btn--cinnabar {
  background: var(--cinnabar);
  border-color: rgba(7, 15, 12, 0.4);
  color: var(--paper-warm);
}
.btn--cinnabar:hover { background: #CE4034; }

/* ---------- surfaces ---------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--table);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease), transform 0.24s var(--ease);
}

.card:hover {
  border-color: rgba(201, 162, 39, 0.55);
  box-shadow: 0 24px 48px -38px #000, inset 0 1px 0 rgba(201, 162, 39, 0.18);
}

.card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.card__title {
  font-size: clamp(19px, 2vw, 24px);
  margin-bottom: 10px;
}

.frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: clamp(22px, 3.4vw, 44px);
  background:
    radial-gradient(120% 100% at 50% -25%, rgba(47, 217, 192, 0.07), transparent 62%),
    linear-gradient(168deg, rgba(18, 48, 40, 0.96), rgba(11, 31, 24, 0.96));
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  height: 7px;
  opacity: 0.65;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(201, 162, 39, 0.55) 0 1px, transparent 1px 12px);
}
.frame::before { top: 6px; }
.frame::after { bottom: 6px; }

.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 2px;
  background-color: var(--table);
  background-image:
    radial-gradient(120% 90% at 18% 0%, rgba(201, 162, 39, 0.16), transparent 60%),
    linear-gradient(158deg, #143529, #0B1F18 72%);
}

.media-frame img,
.media-frame picture { width: 100%; height: 100%; object-fit: cover; }

.media-frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(201, 162, 39, 0.18);
  pointer-events: none;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  font-size: var(--fs-11);
  letter-spacing: 0.16em;
  color: var(--paper-warm);
  background: linear-gradient(0deg, rgba(7, 15, 12, 0.92), transparent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: 0.14em;
  line-height: 1.6;
  white-space: nowrap;
}
.badge--gold { color: var(--gold); }
.badge--cyan { color: var(--cyan); }
.badge--red { color: var(--paper-warm); background: var(--cinnabar); border-color: transparent; }

.tick-list { display: grid; gap: 10px; }

.tick-list li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--paper);
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
}

.link-more::after {
  content: "\2192";
  font-family: var(--font-mono);
  transition: transform 0.24s var(--ease);
}

.link-more:hover::after { transform: translateX(4px); }

/* ---------- breadcrumb ---------- */
.breadcrumb { margin-top: clamp(18px, 3vw, 30px); }

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: 0.16em;
  color: var(--muted);
}

.breadcrumb li { display: flex; align-items: center; gap: 8px; }

.breadcrumb li + li::before {
  content: "\203A";
  color: var(--gold);
  opacity: 0.75;
}

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

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--gold);
  color: var(--felt-deep);
  font-size: 13px;
  letter-spacing: 0.08em;
  border-radius: 2px;
  transition: top 0.2s var(--ease);
}

.skip-link:focus { top: 16px; }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  --header-h: 88px;
  color: var(--paper);
  background-image: linear-gradient(180deg, rgba(7, 15, 12, 0.78), rgba(7, 15, 12, 0));
  border-bottom: 1px solid transparent;
  transition: background-color 0.32s var(--ease), border-color 0.32s var(--ease),
    box-shadow 0.32s var(--ease);
}

.site-header[data-scrolled="true"] {
  --header-h: 64px;
  background-color: var(--felt-deep);
  background-image: linear-gradient(180deg, rgba(11, 31, 24, 0.98), rgba(7, 15, 12, 0.98));
  border-bottom-color: var(--line);
  box-shadow: 0 20px 44px -34px #000, inset 0 -1px 0 rgba(201, 162, 39, 0.3);
}

.header-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  min-height: var(--header-h);
  transition: min-height 0.32s var(--ease);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding-block: 6px;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(201, 162, 39, 0.8);
  background: radial-gradient(circle at 50% 38%, rgba(201, 162, 39, 0.3), rgba(11, 31, 24, 0.94) 72%);
  box-shadow: 0 0 0 1px rgba(7, 15, 12, 0.9), 0 0 20px -8px rgba(201, 162, 39, 0.75);
  flex: 0 0 auto;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 1px dashed rgba(201, 162, 39, 0.38);
}

.brand-mark__glyph {
  position: relative;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold-bright);
  text-shadow: 0 0 12px rgba(242, 217, 138, 0.55);
}

.brand-text { display: grid; gap: 3px; }

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.15;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.version-badge {
  align-self: center;
  margin-left: 2px;
  padding: 3px 6px;
  border: 1px solid rgba(201, 162, 39, 0.55);
  border-radius: 2px;
  background: rgba(201, 162, 39, 0.12);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--gold-bright);
  white-space: nowrap;
}

.primary-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.5vw, 24px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.24s var(--ease);
}

.nav-link:hover { color: var(--gold-bright); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--gold); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); background: var(--gold); }

.header-utility {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: clamp(10px, 1.6vw, 22px);
  border-left: 1px solid rgba(31, 74, 59, 0.85);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid rgba(201, 162, 39, 0.45);
  border-radius: 2px;
  color: var(--gold-bright);
  font-size: 12px;
  letter-spacing: 0.16em;
  line-height: 1;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.nav-toggle:hover { background: rgba(201, 162, 39, 0.12); border-color: var(--gold); }

.nav-toggle__bars { display: grid; gap: 3px; width: 16px; }

.nav-toggle__bars span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
  background: rgba(47, 217, 192, 0.1);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.site-header[data-scrolled="true"] .header-progress { opacity: 1; }

.header-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--gold), var(--gold-bright));
}

/* ---------- mobile chip bar ---------- */
.chip-bar { display: none; }

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 120px);
  background-color: var(--felt-deep);
  border-top: 1px solid var(--line);
  overflow: hidden;
  z-index: 1;
}

.footer-contour {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 240px;
  pointer-events: none;
  opacity: 0.75;
  background-image:
    repeating-radial-gradient(130% 110% at 18% 132%, transparent 0 24px, rgba(31, 74, 59, 0.9) 24px 25px),
    repeating-radial-gradient(95% 95% at 80% 142%, transparent 0 28px, rgba(201, 162, 39, 0.16) 28px 29px);
  -webkit-mask-image: linear-gradient(to top, #000, transparent 88%);
  mask-image: linear-gradient(to top, #000, transparent 88%);
}

.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(250px, 1.05fr) 2fr;
  gap: clamp(28px, 4vw, 64px);
  padding-block: clamp(38px, 5.5vw, 72px);
}

.brand--footer { padding-block: 0; }

.brand--footer .brand-mark { width: 44px; height: 44px; }
.brand--footer .brand-mark__glyph { font-size: 19px; }
.brand--footer .brand-name { font-size: 19px; }

.footer-note {
  margin-top: 18px;
  max-width: 34ch;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--muted);
}

.footer-contact {
  margin-top: 22px;
  display: grid;
  gap: 0;
  font-size: 13px;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  align-items: baseline;
  padding-block: 8px;
  border-top: 1px solid rgba(31, 74, 59, 0.7);
}

.footer-contact li:last-child { border-bottom: 1px solid rgba(31, 74, 59, 0.7); }

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: 0.18em;
  color: var(--gold);
}

.footer-contact__val {
  color: var(--paper);
  font-size: 13px;
  line-height: 1.7;
  word-break: break-word;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.footer-col__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--gold);
  line-height: 1.6;
}

.footer-links { display: grid; gap: 9px; }

.footer-link {
  display: inline-block;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.84;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), opacity 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-link:hover {
  color: var(--gold-bright);
  opacity: 1;
  border-bottom-color: rgba(201, 162, 39, 0.5);
}

.footer-base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 20px 38px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.footer-legal { color: var(--muted); }
.footer-stamp { color: var(--muted); }
.footer-stamp .num { color: var(--gold-bright); }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  body { padding-bottom: 88px; }

  .site-header { --header-h: 70px; }
  .site-header[data-scrolled="true"] { --header-h: 58px; }

  .nav-toggle { display: inline-flex; margin-left: auto; }

  .primary-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    margin: 0;
    display: grid;
    grid-template-rows: auto auto;
    align-content: start;
    padding: calc(var(--header-h) + 24px) var(--gutter) 40px;
    background-image: linear-gradient(180deg, rgba(7, 15, 12, 0.99), rgba(11, 31, 24, 0.98));
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s var(--ease);
  }

  .primary-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .nav-list { display: grid; gap: 0; grid-row: 1; }

  .nav-link {
    display: block;
    padding: 17px 4px;
    border-bottom: 1px solid var(--line);
    font-family: var(--font-display);
    font-size: clamp(20px, 5vw, 26px);
    letter-spacing: 0.04em;
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] {
    color: var(--gold-bright);
    box-shadow: inset 2px 0 0 var(--gold);
    padding-left: 14px;
  }

  .header-utility {
    grid-row: 2;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 28px;
    padding-left: 0;
    border-left: 0;
  }

  .header-utility .btn {
    justify-content: center;
    padding: 14px 18px;
    font-size: var(--fs-14);
  }

  .chip-bar {
    position: fixed;
    left: 50%;
    bottom: 14px;
    z-index: 70;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background-color: rgba(7, 15, 12, 0.95);
    background-image: radial-gradient(120% 140% at 50% 0%, rgba(201, 162, 39, 0.14), transparent 70%);
    box-shadow: 0 18px 40px -20px #000, inset 0 0 0 1px rgba(201, 162, 39, 0.14);
  }

  .chip {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--paper);
    transition: background-color 0.24s var(--ease), color 0.24s var(--ease);
  }

  .chip::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    border: 1px solid var(--gold);
    flex: 0 0 auto;
  }

  .chip:hover,
  .chip:focus-visible {
    background: rgba(201, 162, 39, 0.18);
    color: var(--gold-bright);
    outline-offset: 2px;
  }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
}

@media (max-width: 600px) {
  .brand-sub { display: none; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-name { font-size: 15px; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .title-md { border-left-width: 2px; }
}

/* ---------- nav open: lock page scroll on mobile ---------- */
@media (max-width: 1024px) {
  html[data-nav-open] { overflow: hidden; }
}

/* ---------- 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;
  }
  .btn:hover,
  .link-more:hover::after { transform: none; }
}