/* ==========================================================================
   米乐赛场 / SIGNAL MILE — 共享站点样式 /assets/site.css
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl, dd, table { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Design tokens ---------- */
:root {
  --sm-ink: #0B1220;
  --sm-ink-2: #101A2E;
  --sm-signal: #00E676;
  --sm-cyan: #37F0C2;
  --sm-amber: #FFB020;
  --sm-paper: #F3EFE6;
  --sm-text: #C9D2E3;
  --sm-muted: #7A879E;
  --sm-line: #1E2B45;
  --sm-alert: #FF5C5C;

  --sm-ink-ink: #04180F;

  --sm-font-display: "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sm-font-body: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sm-font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;

  --sm-gutter: clamp(1rem, 4vw, 3rem);
  --sm-shell-w: 1240px;
  --sm-radius: 20px;
  --sm-radius-sm: 12px;
  --sm-pill: 999px;
  --sm-ease: cubic-bezier(.2, .7, .3, 1);

  --sm-shadow-deep: 0 28px 44px -28px rgba(0, 0, 0, .95);
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  background: var(--sm-ink);
  color: var(--sm-text);
  font-family: var(--sm-font-body);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

:where(h1, h2, h3, h4) {
  font-family: var(--sm-font-display);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0;
  color: #fff;
}
:where(h1) { font-size: clamp(2.25rem, 5.4vw, 4.75rem); line-height: 1.04; }
:where(h2) { font-size: clamp(1.75rem, 3.4vw, 2.75rem); }
:where(h3) { font-size: clamp(1.2rem, 2vw, 1.55rem); }
:where(p) { max-width: 38em; }

::selection { background: var(--sm-signal); color: var(--sm-ink-ink); }

:focus-visible {
  outline: 2px solid var(--sm-signal);
  outline-offset: 3px;
  border-radius: 4px;
}

#main-content { display: block; }

/* ---------- 4. A11y helpers ---------- */
.sm-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.sm-skip {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 300;
  transform: translate(-50%, -140%);
  padding: .7rem 1.2rem;
  border-radius: 0 0 var(--sm-radius-sm) var(--sm-radius-sm);
  background: var(--sm-signal);
  color: var(--sm-ink-ink);
  font-family: var(--sm-font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  transition: transform .22s var(--sm-ease);
}
.sm-skip:focus-visible { transform: translate(-50%, 0); }

/* ---------- 5. Layout ---------- */
.sm-shell {
  width: 100%;
  max-width: var(--sm-shell-w);
  margin-inline: auto;
  padding-inline: var(--sm-gutter);
}

.sm-section { padding-block: clamp(2.5rem, 6vw, 5rem); }

.sm-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.sm-section__title { font-size: clamp(1.6rem, 3vw, 2.4rem); }

.sm-grid { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
.sm-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sm-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ---------- 6. Type utilities ---------- */
.sm-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--sm-font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sm-amber);
}
.sm-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
}

.sm-num {
  display: block;
  font-family: var(--sm-font-mono);
  font-weight: 700;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: .85;
  letter-spacing: -.03em;
  color: rgba(201, 210, 227, .16);
}

.sm-mono {
  font-family: var(--sm-font-mono);
  letter-spacing: .02em;
}

.sm-signal-line {
  display: block;
  width: 100%;
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--sm-signal), rgba(0, 230, 118, 0));
}

/* ---------- 7. Buttons / pills / filters ---------- */
.sm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .62rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--sm-pill);
  font-family: var(--sm-font-body);
  font-size: .85rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .02em;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .2s var(--sm-ease), color .2s var(--sm-ease),
              border-color .2s var(--sm-ease), box-shadow .2s var(--sm-ease);
}
.sm-btn--signal {
  background: var(--sm-signal);
  color: var(--sm-ink-ink);
  box-shadow: 0 6px 18px -10px rgba(0, 230, 118, .95);
}
.sm-btn--signal:hover { background: #2BFF90; box-shadow: 0 12px 26px -12px rgba(0, 230, 118, 1); }
.sm-btn--ghost { background: transparent; color: var(--sm-text); border-color: var(--sm-line); }
.sm-btn--ghost:hover { border-color: var(--sm-signal); color: #fff; }
.sm-btn--amber { background: var(--sm-amber); color: #2A1600; }
.sm-btn--amber:hover { background: #FFC24D; }

.sm-pill {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .28rem .8rem;
  border: 1px solid rgba(55, 240, 194, .3);
  border-radius: var(--sm-pill);
  background: rgba(55, 240, 194, .07);
  font-family: var(--sm-font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--sm-cyan);
}
.sm-pill--signal { color: var(--sm-signal); border-color: rgba(0, 230, 118, .32); background: rgba(0, 230, 118, .08); }
.sm-pill--amber { color: var(--sm-amber); border-color: rgba(255, 176, 32, .32); background: rgba(255, 176, 32, .09); }
.sm-pill--cyan { color: var(--sm-cyan); }

.sm-filter { display: flex; flex-wrap: wrap; gap: .5rem; }
.sm-filter__btn {
  padding: .45rem 1rem;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-pill);
  background: transparent;
  color: var(--sm-muted);
  font-size: .85rem;
  cursor: pointer;
  transition: color .2s var(--sm-ease), border-color .2s var(--sm-ease), background-color .2s var(--sm-ease);
}
.sm-filter__btn:hover { color: #fff; border-color: var(--sm-signal); }
.sm-filter__btn[aria-pressed="true"] {
  background: var(--sm-signal);
  border-color: var(--sm-signal);
  color: var(--sm-ink-ink);
  font-weight: 700;
}
.is-hidden { display: none !important; }

/* ---------- 8. Header ---------- */
.sm-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(11, 18, 32, .97), rgba(11, 18, 32, .93));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sm-line);
}

.sm-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 3;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--sm-signal), var(--sm-cyan), var(--sm-amber));
}

.sm-signal-strip { background: var(--sm-ink-2); border-bottom: 1px solid var(--sm-line); }
.sm-signal-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 30px;
}
.sm-signal-strip__text {
  display: flex;
  align-items: center;
  gap: .55rem;
  max-width: none;
  font-family: var(--sm-font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  color: var(--sm-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sm-signal-strip__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sm-signal);
  box-shadow: 0 0 0 3px rgba(0, 230, 118, .16);
  animation: sm-pulse 2.6s var(--sm-ease) infinite;
}
@keyframes sm-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .32; }
}
.sm-signal-strip__link {
  flex: none;
  font-family: var(--sm-font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--sm-cyan);
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--sm-ease);
}
.sm-signal-strip__link:hover { border-bottom-color: var(--sm-cyan); }

.sm-header__bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 66px;
  padding-block: .55rem;
}

.sm-brand { display: flex; flex-direction: column; gap: .3rem; line-height: 1; }
.sm-brand__mark {
  font-family: var(--sm-font-display);
  font-weight: 900;
  font-size: 1.24rem;
  letter-spacing: 0;
  color: #fff;
}
.sm-brand__latin {
  font-family: var(--sm-font-mono);
  font-size: .58rem;
  letter-spacing: .26em;
  color: var(--sm-signal);
}

.sm-lamps { display: flex; align-items: center; gap: .5rem; }
.sm-lamp {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sm-line);
}
.sm-lamp--signal { background: var(--sm-signal); box-shadow: 0 0 10px rgba(0, 230, 118, .65); }
.sm-lamp--cyan { background: var(--sm-cyan); box-shadow: 0 0 10px rgba(55, 240, 194, .55); }
.sm-lamp--amber { background: var(--sm-amber); box-shadow: 0 0 10px rgba(255, 176, 32, .55); }
.sm-lamp::after {
  content: attr(data-lamp);
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, -4px);
  padding: .28rem .55rem;
  border: 1px solid var(--sm-line);
  border-radius: 6px;
  background: var(--sm-ink-2);
  color: var(--sm-text);
  font-family: var(--sm-font-mono);
  font-size: .62rem;
  letter-spacing: .08em;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s var(--sm-ease), transform .18s var(--sm-ease);
}
.sm-lamp:hover::after { opacity: 1; transform: translate(-50%, 0); }

.sm-nav { display: flex; align-items: center; margin-left: auto; }
.sm-nav__list { display: flex; align-items: center; gap: .2rem; }
.sm-nav__item { display: block; }
.sm-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: .45rem .7rem;
  border-radius: var(--sm-pill);
  font-size: .9rem;
  font-weight: 500;
  color: var(--sm-text);
  transition: color .2s var(--sm-ease), background-color .2s var(--sm-ease);
}
.sm-nav__link::after {
  content: "";
  position: absolute;
  left: .7rem;
  right: .7rem;
  bottom: .18rem;
  height: 2px;
  background: var(--sm-signal);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .24s var(--sm-ease);
}
.sm-nav__link:hover { color: #fff; background: rgba(0, 230, 118, .08); }
.sm-nav__link:hover::after { transform: scaleX(1); }
.sm-nav__link[aria-current="page"] {
  background: var(--sm-signal);
  color: var(--sm-ink-ink);
  font-weight: 700;
}
.sm-nav__link[aria-current="page"]::after { transform: scaleX(0); }

.sm-header__cta { flex: none; }

.sm-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius-sm);
  background: var(--sm-ink-2);
  cursor: pointer;
}
.sm-nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--sm-text);
  transition: transform .24s var(--sm-ease), opacity .18s var(--sm-ease);
}
.sm-header[data-open] .sm-nav-toggle__bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.sm-header[data-open] .sm-nav-toggle__bar:nth-child(2) { opacity: 0; }
.sm-header[data-open] .sm-nav-toggle__bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 9. Footer ---------- */
.sm-footer {
  position: relative;
  margin-top: clamp(3.5rem, 8vw, 7rem);
  background: var(--sm-ink-2);
  border-top: 1px solid var(--sm-line);
  color: var(--sm-text);
}
.sm-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sm-signal), var(--sm-cyan) 42%, var(--sm-amber) 68%, var(--sm-line));
}

.sm-footer__top {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(0, 2fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 3vw, 2.25rem);
}

.sm-footer__brand { max-width: 34ch; }
.sm-footer__mark {
  font-family: var(--sm-font-display);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0;
  color: #fff;
}
.sm-footer__latin {
  margin-top: .4rem;
  font-family: var(--sm-font-mono);
  font-size: .6rem;
  letter-spacing: .26em;
  color: var(--sm-signal);
}
.sm-footer__note {
  margin-top: 1.1rem;
  max-width: 32ch;
  font-size: .88rem;
  line-height: 1.85;
  color: var(--sm-muted);
}

.sm-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}
.sm-footer__col { min-width: 0; }
.sm-footer__title {
  margin-bottom: 1rem;
  font-family: var(--sm-font-mono);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sm-muted);
}
.sm-footer__links { display: grid; gap: .6rem; }
.sm-footer__links a {
  font-size: .92rem;
  color: var(--sm-text);
  transition: color .2s var(--sm-ease);
}
.sm-footer__links a:hover { color: var(--sm-signal); }

.sm-footer__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .4rem 1rem;
  padding-block: 1.35rem;
  border-top: 1px solid var(--sm-line);
  font-size: .85rem;
  color: var(--sm-muted);
}
.sm-footer__line { max-width: none; font-size: .85rem; }
.sm-footer__value {
  font-family: var(--sm-font-mono);
  letter-spacing: .02em;
  color: var(--sm-cyan);
}
.sm-footer__divider { color: var(--sm-line); }

.sm-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.5rem;
  padding-block: 1.35rem 2rem;
  border-top: 1px solid var(--sm-line);
}
.sm-footer__address {
  max-width: none;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--sm-muted);
}
.sm-footer__legal {
  max-width: none;
  font-family: var(--sm-font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--sm-muted);
}

/* ---------- 10. Content components ---------- */
.sm-card {
  position: relative;
  padding: clamp(1.25rem, 2.2vw, 1.9rem);
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  background: var(--sm-ink-2);
  transition: border-color .25s var(--sm-ease), background-color .25s var(--sm-ease);
}
.sm-card:hover { border-color: var(--sm-signal); }
.sm-card__title { margin-bottom: .5rem; font-size: 1.15rem; }
.sm-card__meta {
  font-family: var(--sm-font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--sm-muted);
}

.sm-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding-block: 1.35rem;
  font-family: var(--sm-font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--sm-muted);
}
.sm-breadcrumb a { color: var(--sm-text); transition: color .2s var(--sm-ease); }
.sm-breadcrumb a:hover { color: var(--sm-signal); }
.sm-breadcrumb__sep { color: var(--sm-line); }
.sm-breadcrumb [aria-current="page"] { color: var(--sm-amber); }

.sm-prose { max-width: 66ch; }
.sm-prose p { margin-bottom: 1.25em; line-height: 1.85; max-width: 66ch; }
.sm-prose h2 { margin-top: 2.2em; margin-bottom: .7em; }
.sm-prose h3 { margin-top: 1.8em; margin-bottom: .6em; }
.sm-prose ul, .sm-prose ol { display: grid; gap: .6rem; margin-bottom: 1.4em; }
.sm-prose li { position: relative; padding-left: 1.4rem; }
.sm-prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 2px;
  background: var(--sm-signal);
}
.sm-prose a {
  color: var(--sm-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.sm-prose a:hover { color: var(--sm-signal); }

.sm-surface-paper {
  background: var(--sm-paper);
  color: #1A2233;
}
.sm-surface-paper :where(h1, h2, h3, h4) { color: #0B1220; }
.sm-surface-paper .sm-muted,
.sm-surface-paper p { color: #3B465C; }
.sm-surface-paper .sm-eyebrow { color: #A06A00; }
.sm-surface-paper .sm-num { color: rgba(11, 18, 32, .18); }
.sm-surface-paper .sm-prose li::before { background: #0B1220; }

.sm-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--sm-line);
  border-radius: var(--sm-radius);
  background:
    radial-gradient(120% 100% at 12% 0%, rgba(0, 230, 118, .14), rgba(11, 18, 32, 0) 58%),
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(201, 210, 227, .055) 38px 39px),
    repeating-linear-gradient(0deg, transparent 0 38px, rgba(201, 210, 227, .055) 38px 39px),
    var(--sm-ink-2);
}
.sm-media img { width: 100%; height: 100%; object-fit: cover; }
.sm-media--wide { aspect-ratio: 21 / 9; }
.sm-media--portrait { aspect-ratio: 4 / 5; }
.sm-media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: .9rem 1rem .8rem;
  font-family: var(--sm-font-mono);
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--sm-text);
  background: linear-gradient(0deg, rgba(11, 18, 32, .96), rgba(11, 18, 32, 0));
}
.sm-media__scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(11, 18, 32, 0) 0 3px, rgba(11, 18, 32, .18) 3px 4px);
}

.sm-table { font-size: .92rem; }
.sm-table th {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--sm-line);
  font-family: var(--sm-font-mono);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-align: left;
  color: var(--sm-muted);
}
.sm-table td {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--sm-line);
  color: var(--sm-text);
}
.sm-table tbody tr { transition: background-color .2s var(--sm-ease); }
.sm-table tbody tr:hover { background: rgba(0, 230, 118, .07); }

/* ---------- 11. Motion ---------- */
.sm-reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .55s var(--sm-ease), transform .55s var(--sm-ease);
}
.sm-reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 12. Responsive ---------- */
@media (max-width: 1080px) {
  .sm-nav__link { font-size: .82rem; padding: .45rem .55rem; }
}

@media (max-width: 900px) {
  .sm-lamps { display: none; }
  .sm-nav-toggle { display: inline-flex; }
  .sm-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    margin-left: 0;
    padding: .75rem var(--sm-gutter) 1.35rem;
    background: var(--sm-ink-2);
    border-bottom: 1px solid var(--sm-line);
    box-shadow: var(--sm-shadow-deep);
  }
  .sm-header[data-open] .sm-nav { display: block; }
  .sm-nav__list { flex-direction: column; align-items: stretch; gap: .1rem; }
  .sm-nav__link {
    padding: .85rem 1rem;
    border-bottom: 1px solid var(--sm-line);
    border-radius: var(--sm-radius-sm);
    font-size: 1rem;
  }
  .sm-nav__link::after { display: none; }
  .sm-nav__link[aria-current="page"] { background: rgba(0, 230, 118, .14); color: var(--sm-signal); }

  .sm-footer__top { grid-template-columns: minmax(0, 1fr); }
  .sm-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .sm-brand__latin { display: none; }
  .sm-header__bar { gap: .75rem; min-height: 60px; }
  .sm-header__cta { padding: .5rem .9rem; font-size: .78rem; }
  .sm-signal-strip__text { font-size: .62rem; letter-spacing: .08em; }
  .sm-signal-strip__link { font-size: .62rem; }

  .sm-grid--2, .sm-grid--3 { grid-template-columns: minmax(0, 1fr); }
  .sm-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
  .sm-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .sm-footer__cols { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 13. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .sm-reveal-ready [data-reveal] { opacity: 1; transform: none; }
  .sm-progress { transition: none; }
  .sm-lamp::after { transition: none; }
}