/* ============ AK体育 · 共享样式 /assets/site.css ============ */

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

:root {
  --ink-900: #04121F;
  --ink-800: #0A2338;
  --ink-700: #123E5C;
  --orange: #FF5A1F;
  --orange-deep: #C23A0C;
  --mint: #33F2C0;
  --paper: #F4EBDD;
  --mist: #8FA6B8;
  --magenta: #E23E7A;
  --yellow: #F5C542;

  --line: rgba(143, 166, 184, .20);
  --line-strong: rgba(143, 166, 184, .36);

  --radius-xl: 32px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --pill: 999px;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 180ms;
  --shell: 1320px;
  --gutter: clamp(16px, 3.4vw, 44px);
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
}

body {
  margin: 0;
  min-height: 100%;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(900px 540px at 88% -10%, rgba(255, 90, 31, .17), transparent 62%),
    radial-gradient(760px 480px at 4% 6%, rgba(51, 242, 192, .10), transparent 60%),
    radial-gradient(1200px 700px at 50% 110%, rgba(18, 62, 92, .55), transparent 70%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
}

img, svg, video, picture { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure, dl, dd { margin: 0; }

::selection { background: var(--mint); color: var(--ink-900); }

h1, h2, h3, h4, h5 {
  margin: 0 0 .5em;
  font-family: var(--font-display);
  line-height: 1.18;
  letter-spacing: -.02em;
  font-weight: 800;
}
h1 { font-size: clamp(36px, 5vw, 64px); font-weight: 900; letter-spacing: -.03em; }
h2 { font-size: clamp(26px, 3vw, 40px); }
h3 { font-size: clamp(19px, 1.8vw, 24px); font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 1.2em; }
p:last-child { margin-bottom: 0; }

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 通用工具 ---------- */

.wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  font-size: .92em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mint);
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--mint);
  flex: 0 0 auto;
}

.divider {
  height: 1px;
  border: 0;
  margin: clamp(28px, 4vw, 52px) 0;
  background: linear-gradient(90deg, transparent, var(--line-strong) 20%, var(--line-strong) 80%, transparent);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: clamp(20px, 2.6vw, 34px);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3vw, 40px);
  letter-spacing: -.02em;
  line-height: 1.15;
  margin: 0;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 600;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(51, 242, 192, .35);
  transition: gap var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.link-more:hover { gap: 14px; color: #8FFBE0; border-color: rgba(143, 251, 224, .7); }

/* ---------- 面包屑 ---------- */

.breadcrumbs {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 20px var(--gutter) 0;
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}
.breadcrumbs li { display: inline-flex; align-items: center; gap: 10px; }
.breadcrumbs li + li::before {
  content: "/";
  color: rgba(143, 166, 184, .45);
}
.breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.breadcrumbs a:hover { color: var(--mint); }
.breadcrumbs [aria-current="page"] { color: var(--paper); }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  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--primary {
  background: var(--orange);
  color: #170600;
  box-shadow: 0 12px 28px -14px rgba(255, 90, 31, .95);
}
.btn--primary:hover {
  background: var(--orange-deep);
  color: var(--paper);
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -14px rgba(194, 58, 12, .95);
}

.btn--ghost {
  background: rgba(10, 35, 56, .62);
  border-color: var(--line-strong);
  color: var(--paper);
}
.btn--ghost:hover {
  border-color: var(--mint);
  color: var(--mint);
  transform: translateY(-2px);
}

/* ---------- 胶囊标签 ---------- */

.pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid rgba(51, 242, 192, .30);
  border-radius: var(--pill);
  background: rgba(51, 242, 192, .10);
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  line-height: 1.6;
}
.pill-tag--hot {
  border-color: rgba(255, 90, 31, .40);
  background: rgba(255, 90, 31, .12);
  color: #FF8A5B;
}
.pill-tag--new {
  border-color: rgba(226, 62, 122, .42);
  background: rgba(226, 62, 122, .15);
  color: #FF85AC;
}
.pill-tag--index {
  border-color: rgba(245, 197, 66, .38);
  background: rgba(245, 197, 66, .12);
  color: var(--yellow);
}

/* ---------- Bento 面板 ---------- */

.panel {
  position: relative;
  padding: clamp(20px, 2.4vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(18, 62, 92, .55) 0%, rgba(10, 35, 56, .92) 68%),
    var(--ink-800);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.panel--flat { background: rgba(10, 35, 56, .62); }
.panel--hot { border-color: rgba(255, 90, 31, .40); }
.panel--mint { border-color: rgba(51, 242, 192, .34); }

/* ---------- 数据条 ---------- */

.data-bar {
  position: relative;
  width: 100%;
  height: 8px;
  border-radius: var(--pill);
  background: rgba(143, 166, 184, .18);
  overflow: hidden;
}
.data-bar > span {
  display: block;
  width: var(--value, 0%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--mint), #7BF8DA);
  transition: width 280ms var(--ease);
}

/* ---------- 图片容器基础规则 ---------- */

.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(18, 62, 92, .95), rgba(4, 18, 31, .96) 62%),
    var(--ink-800);
}
.media-frame > img,
.media-frame > picture,
.media-frame > video,
.media-frame > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(148deg, rgba(255, 90, 31, .24) 0%, transparent 44%, rgba(51, 242, 192, .22) 100%);
  mix-blend-mode: screen;
  opacity: .55;
}
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3  { aspect-ratio: 4 / 3; }
.media-frame--1x1  { aspect-ratio: 1 / 1; }
.media-frame--21x9 { aspect-ratio: 21 / 9; }
.media-frame--cut {
  clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 100%);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ---------- 跳转链接 ---------- */

.skip-link {
  position: absolute;
  top: -96px;
  left: 16px;
  z-index: 200;
  padding: 10px 20px;
  border-radius: var(--pill);
  background: var(--mint);
  color: var(--ink-900);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top 180ms var(--ease);
}
.skip-link:focus { top: 14px; }

/* ---------- 页头 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(4, 18, 31, .97) 0%, rgba(4, 18, 31, .86) 100%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header[data-compact] {
  border-bottom-color: rgba(255, 90, 31, .34);
  box-shadow: 0 18px 44px -22px rgba(0, 0, 0, .85);
}

.header-shell {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 13px var(--gutter);
  transition: padding var(--dur) var(--ease);
}
.site-header[data-compact] .header-shell { padding-block: 7px; }

.header-identity {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 4px 2px;
  color: var(--paper);
  text-decoration: none;
  border-radius: var(--radius-sm);
}
.brand-mark__glyph {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  background: linear-gradient(150deg, var(--orange) 0%, var(--orange-deep) 100%);
  color: #170600;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: -.02em;
  clip-path: polygon(0 0, 100% 0, 100% 76%, 50% 100%, 0 76%);
  transform: skewX(-6deg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.brand-mark:hover .brand-mark__glyph {
  transform: skewX(-6deg) translateY(-2px);
  box-shadow: 0 10px 22px -12px rgba(255, 90, 31, 1);
}
.brand-mark__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}
.brand-mark__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -.02em;
  color: var(--paper);
  white-space: nowrap;
}
.brand-mark__note {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}
.brand-mark--footer .brand-mark__name { font-size: 22px; }
.brand-mark--footer .brand-mark__glyph { width: 46px; height: 46px; font-size: 16px; }

.version-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 13px;
  border: 1px solid rgba(245, 197, 66, .42);
  border-radius: var(--pill);
  background: rgba(245, 197, 66, .08);
  color: var(--yellow);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  white-space: nowrap;
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}
.version-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 3px rgba(245, 197, 66, .18);
  flex: 0 0 auto;
}
.site-header[data-compact] .version-pill {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.header-slash {
  flex: 1 1 48px;
  min-width: 20px;
  height: 2px;
  transform: skewX(-6deg);
  background: linear-gradient(90deg, transparent 0%, rgba(255, 90, 31, .55) 22%, rgba(51, 242, 192, .34) 78%, transparent 100%);
  pointer-events: none;
}

.primary-nav { flex: 0 1 auto; min-width: 0; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-list a {
  display: inline-block;
  padding: 9px 12px;
  border-radius: var(--pill);
  color: var(--mist);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}
.nav-list a:hover {
  color: var(--paper);
  background: rgba(18, 62, 92, .62);
}
.nav-list a[aria-current="page"] {
  color: var(--mint);
  background: rgba(51, 242, 192, .10);
  box-shadow: inset 0 0 0 1px rgba(51, 242, 192, .42);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  margin-left: auto;
}

.nav-toggle {
  display: none;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-left: auto;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: rgba(10, 35, 56, .72);
  color: var(--paper);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--mint); }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--paper);
  transition: background-color 200ms var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: inherit;
  transition: transform 200ms var(--ease), background-color 200ms var(--ease);
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before {
  transform: translateY(6px) rotate(45deg);
  background: var(--orange);
}
.site-header[data-open] .nav-toggle__bars::after {
  transform: translateY(-6px) rotate(-45deg);
  background: var(--orange);
}

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 120px);
  overflow: hidden;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(760px 340px at 10% 0%, rgba(51, 242, 192, .10), transparent 62%),
    radial-gradient(640px 320px at 92% 8%, rgba(255, 90, 31, .13), transparent 62%),
    var(--ink-800);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--magenta) 42%, var(--mint) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 38%);
  opacity: .9;
}

.footer-inner {
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 5vw, 68px) var(--gutter) 0;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 72px);
  align-items: start;
  padding-bottom: clamp(30px, 4vw, 48px);
}

.footer-brand { min-width: 0; }

.footer-tagline {
  margin: 20px 0 10px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.4;
  letter-spacing: -.02em;
  color: var(--paper);
}

.footer-note {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}

.footer-old {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px dashed rgba(255, 90, 31, .52);
  border-radius: var(--pill);
  color: #FF9066;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.footer-old:hover {
  border-style: solid;
  border-color: var(--orange);
  background: rgba(255, 90, 31, .14);
  color: #FFB596;
  transform: translateY(-2px);
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
}

.footer-group__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mint);
}

.footer-list { display: grid; gap: 9px; }
.footer-list a {
  display: inline-block;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-list a:hover {
  color: var(--paper);
  border-bottom-color: rgba(255, 90, 31, .65);
}

.footer-contact-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 18px 28px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(4, 18, 31, .55);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}
.footer-contact--wide { grid-column: span 2; }

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}
.footer-contact__value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}
.footer-contact__value.mono { font-size: 13px; color: var(--mint); }

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(28px, 3.4vw, 44px);
  padding: 20px 0 30px;
  border-top: 1px solid var(--line);
}

.footer-copy {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
}
.footer-legal a {
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.footer-legal a:hover { color: var(--mint); }

/* ---------- 滚动进度（JS 注入） ---------- */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 120;
  background: rgba(143, 166, 184, .12);
  pointer-events: none;
}
.scroll-progress > span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--orange) 0%, var(--yellow) 45%, var(--mint) 100%);
}

/* ---------- 入场显现 ---------- */

[data-reveal-armed] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}
[data-reveal-armed].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 悬停层级（仅指针设备） ---------- */

@media (hover: hover) and (pointer: fine) {
  .panel:hover {
    transform: translateY(-2px);
    border-color: rgba(51, 242, 192, .42);
    box-shadow: 0 24px 52px -32px rgba(51, 242, 192, .60);
  }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1180px) {
  .nav-list a { padding: 9px 10px; font-size: 13px; }
  .header-secondary { display: none; }
  .brand-mark__note { display: none; }
}

@media (max-width: 1024px) {
  .header-slash { display: none; }
  .footer-top { grid-template-columns: minmax(0, 1fr); }
  .footer-tagline { max-width: 30ch; }
}

@media (max-width: 960px) {
  html { scroll-padding-top: 84px; }

  .header-shell {
    flex-wrap: wrap;
    row-gap: 10px;
    padding: 10px var(--gutter);
  }
  .site-header[data-compact] .header-shell { padding-block: 8px; }
  .header-identity { flex: 1 1 auto; }
  .version-pill { display: none; }
  .brand-mark__note { display: block; }
  .nav-toggle { display: grid; }
  .header-slash { display: none; }

  .primary-nav {
    display: none;
    order: 10;
    flex: 1 1 100%;
    width: 100%;
  }
  .site-header[data-open] .primary-nav { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }
  .nav-list a {
    display: block;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    font-size: 15px;
  }

  .header-actions {
    display: none;
    order: 11;
    flex: 1 1 100%;
    margin-left: 0;
    padding-bottom: 14px;
  }
  .site-header[data-open] .header-actions {
    display: flex;
    gap: 10px;
  }
  .site-header[data-open] .header-actions .btn { flex: 1 1 auto; }
  .site-header[data-open] .header-actions .header-secondary { display: inline-flex; }
}

@media (max-width: 900px) {
  .footer-contact--wide { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 15px; }
  .footer-groups { grid-template-columns: minmax(0, 1fr); }
  .footer-contact-band { grid-template-columns: minmax(0, 1fr); }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .media-frame--21x9 { aspect-ratio: 16 / 9; }
  .panel { border-radius: var(--radius-md); }
}

@media (max-width: 420px) {
  .brand-mark__name { font-size: 18px; }
  .brand-mark__glyph { width: 38px; height: 38px; font-size: 13px; }
  .btn { padding: 0 16px; font-size: 13px; }
}

/* ---------- 减弱动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal-armed] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .panel:hover,
  .btn:hover,
  .footer-old:hover,
  .brand-mark:hover .brand-mark__glyph {
    transform: none;
  }
  .data-bar > span { transition: none; }
}