/* ==========================================================================
   完美体育APP — Site Kit 共享样式 ( /assets/site.css )
   夜场战术板：墨绿底 + 荧光青路径 + 赛道橙入口 + 琥珀数字
   ========================================================================== */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

ul, ol { padding: 0; list-style: none; }

img, svg, video { max-width: 100%; }

:root {
  --ink: #0B1F1A;
  --moss: #17352C;
  --stone: #2E3A36;
  --cream: #F2EFE4;
  --cool: #DDE7E3;
  --cyan: #35F0D0;
  --track: #FF7A3D;
  --amber: #F6B84A;
  --clay: #B76E4F;
  --press: #08120F;

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

  --shell: 1200px;
  --gutter: clamp(18px, 4vw, 48px);
  --pill: 999px;
  --edge: rgba(242, 239, 228, 0.14);
  --edge-soft: rgba(242, 239, 228, 0.08);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow-paper: 0 20px 44px -26px rgba(8, 18, 15, 0.95), 0 1px 0 rgba(242, 239, 228, 0.05) inset;
}

/* ---------- 基础排版 ---------- */

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 400;
  color: var(--cool);
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(53, 240, 208, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 240, 208, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--cream);
}

h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }

p { max-width: 68ch; }

a { color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 3px; }

strong { color: var(--cream); font-weight: 700; }

::selection { background: rgba(53, 240, 208, 0.28); color: var(--cream); }

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

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

/* ---------- 跳过链接 ---------- */

.skip-link {
  position: fixed;
  top: -80px;
  left: 14px;
  z-index: 140;
  padding: 11px 20px;
  border-radius: 6px;
  background: var(--cyan);
  color: #04231d;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top 0.22s var(--ease);
}

.skip-link:focus { top: 14px; }

/* ---------- 滚动进度 ---------- */

.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 130;
  pointer-events: none;
}

.scroll-progress > i {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--amber) 55%, var(--track) 100%);
}

/* ---------- 悬浮胶囊头部 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  padding: clamp(10px, 1.4vw, 18px) var(--gutter);
  transition: padding 0.3s var(--ease);
}

.header-shell {
  max-width: var(--shell);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.4vw, 18px);
  padding: 7px 7px 7px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--edge);
  background: linear-gradient(180deg, rgba(23, 53, 44, 0.94) 0%, rgba(11, 31, 26, 0.9) 100%);
  -webkit-backdrop-filter: blur(14px) saturate(125%);
  backdrop-filter: blur(14px) saturate(125%);
  box-shadow: 0 18px 38px -26px rgba(8, 18, 15, 1), 0 0 0 1px rgba(8, 18, 15, 0.45) inset;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header[data-scrolled="true"] { padding-block: 8px; }

.site-header[data-scrolled="true"] .header-shell {
  background: linear-gradient(180deg, rgba(23, 53, 44, 0.99) 0%, rgba(11, 31, 26, 0.97) 100%);
  box-shadow: 0 22px 48px -28px rgba(8, 18, 15, 1), 0 0 0 1px rgba(8, 18, 15, 0.6) inset;
}

/* 品牌岛 */

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-glyph {
  position: relative;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border-radius: 8px;
  border: 1px solid rgba(53, 240, 208, 0.55);
  background:
    radial-gradient(circle at 30% 28%, rgba(53, 240, 208, 0.32), transparent 62%),
    linear-gradient(150deg, var(--moss), var(--press));
  box-shadow: 0 0 0 1px rgba(8, 18, 15, 0.7) inset;
}

.brand-glyph::before,
.brand-glyph::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  opacity: 0.75;
}

.brand-glyph::before { left: 6px; right: 6px; top: 50%; height: 1px; }
.brand-glyph::after { top: 6px; bottom: 6px; left: 50%; width: 1px; }

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  gap: 3px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: 0.1em;
  color: var(--cream);
  white-space: nowrap;
}

.brand-tag {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.32em;
  color: rgba(221, 231, 227, 0.55);
  white-space: nowrap;
}

.brand-version {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 4px;
  border: 1px solid rgba(246, 184, 74, 0.42);
  color: var(--amber);
  background: rgba(246, 184, 74, 0.07);
}

/* 导航 */

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  min-width: 0;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item { display: block; }

.nav-link {
  display: inline-block;
  padding: 8px 11px;
  border-radius: var(--pill);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(221, 231, 227, 0.78);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.nav-link:hover {
  color: var(--cream);
  background: rgba(53, 240, 208, 0.09);
  transform: translateY(-1px);
}

.nav-link[aria-current="page"] {
  color: #04231d;
  background: var(--cyan);
  font-weight: 700;
}

.nav-quick {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 6px;
  padding-left: 10px;
  border-left: 1px solid var(--edge);
}

.chip-link {
  display: inline-block;
  padding: 7px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--edge);
  background: rgba(242, 239, 228, 0.03);
  color: var(--cool);
  font-size: 12px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.chip-link:hover {
  color: var(--cyan);
  border-color: rgba(53, 240, 208, 0.55);
  background: rgba(53, 240, 208, 0.08);
}

.chip-link--accent {
  border-color: transparent;
  background: var(--track);
  color: #1a0c06;
  font-weight: 700;
}

.chip-link--accent:hover {
  background: #ff9057;
  color: #1a0c06;
  border-color: transparent;
}

/* 移动端开关 */

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 9px 14px;
  border-radius: var(--pill);
  border: 1px solid rgba(53, 240, 208, 0.35);
  background: rgba(53, 240, 208, 0.08);
  color: var(--cyan);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-toggle:hover {
  background: rgba(53, 240, 208, 0.17);
  border-color: var(--cyan);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
}

.nav-toggle-bars i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.nav-toggle-bars i:nth-child(2) { width: 68%; }

.nav-toggle-label { line-height: 1; }

/* ---------- 页脚 ---------- */

html.nav-open,
html.nav-open body { overflow: hidden; }

.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background:
    linear-gradient(180deg, rgba(23, 53, 44, 0.92) 0%, rgba(11, 31, 26, 1) 46%),
    linear-gradient(rgba(53, 240, 208, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 240, 208, 0.025) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  border-top: 1px solid var(--edge-soft);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(53, 240, 208, 0.6) 16%, rgba(255, 122, 61, 0.5) 64%, transparent 100%);
}

.footer-top {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 76px) var(--gutter) clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(230px, 1.05fr) minmax(0, 1.45fr) minmax(240px, 1fr);
  gap: clamp(26px, 3.6vw, 54px);
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--cream);
  text-decoration: none;
}

.footer-logo:hover { color: var(--cyan); }

.footer-about {
  font-size: 13px;
  line-height: 1.75;
  color: rgba(221, 231, 227, 0.66);
  max-width: 30ch;
}

.footer-service {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 4px;
}

.footer-service-key {
  font-size: 10px;
  letter-spacing: 0.26em;
  color: rgba(221, 231, 227, 0.45);
}

.footer-service-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 30px);
}

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

.footer-col-title {
  position: relative;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--cyan);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.footer-col-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 2px;
  background: var(--clay);
}

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

.footer-link {
  display: inline-block;
  font-size: 13.5px;
  color: rgba(221, 231, 227, 0.76);
  text-decoration: none;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.footer-link::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 1px;
  margin-right: 0;
  vertical-align: middle;
  background: var(--cyan);
  transition: width 0.22s var(--ease), margin-right 0.22s var(--ease);
}

.footer-link:hover { color: var(--cream); }

.footer-link:hover::before { width: 12px; margin-right: 6px; }

.footer-contact {
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--edge);
  border-left: 2px solid var(--clay);
  border-radius: 12px;
  background: rgba(8, 18, 15, 0.42);
  box-shadow: var(--shadow-paper);
}

.contact-list { display: grid; gap: 12px; }

.contact-item {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(242, 239, 228, 0.1);
}

.contact-item:last-child { padding-bottom: 0; border-bottom: 0; }

.contact-key {
  font-size: 10px;
  letter-spacing: 0.24em;
  color: rgba(221, 231, 227, 0.45);
}

.contact-value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--amber);
  word-break: break-word;
}

.contact-value--text {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--cool);
}

.footer-base {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px var(--gutter) clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--edge-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  font-size: 12px;
  color: rgba(221, 231, 227, 0.55);
}

.footer-legal { font-size: 12px; color: rgba(221, 231, 227, 0.6); }

.footer-icp {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(221, 231, 227, 0.5);
}

.footer-note {
  flex: 1 0 100%;
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(221, 231, 227, 0.42);
  max-width: 78ch;
}

/* ---------- 通用容器与分节 ---------- */

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

.content { max-width: 72ch; }

.content > * + * { margin-top: 1.05em; }

.section { padding-block: clamp(34px, 5.4vw, 80px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.section-title {
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
  letter-spacing: -0.02em;
}

.section-sub {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(221, 231, 227, 0.64);
  max-width: 56ch;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--track);
  color: #1a0c06;
  box-shadow: 0 12px 26px -16px rgba(255, 122, 61, 0.95);
}

.btn--primary:hover { background: #ff9057; }

.btn--ghost {
  border-color: rgba(53, 240, 208, 0.42);
  background: transparent;
  color: var(--cyan);
}

.btn--ghost:hover {
  background: rgba(53, 240, 208, 0.1);
  border-color: var(--cyan);
}

.btn--quiet {
  border-color: var(--edge);
  background: rgba(242, 239, 228, 0.03);
  color: var(--cool);
}

.btn--quiet:hover {
  border-color: rgba(242, 239, 228, 0.32);
  background: rgba(242, 239, 228, 0.07);
  color: var(--cream);
}

/* ---------- 标签与数字 ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--edge);
  border-radius: 4px;
  background: rgba(242, 239, 228, 0.04);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.18em;
  color: var(--cool);
  white-space: nowrap;
}

.tag--cyan {
  background: var(--cyan);
  border-color: transparent;
  color: #04231d;
  font-weight: 700;
}

.tag--orange {
  background: var(--track);
  border-color: transparent;
  color: #1a0c06;
  font-weight: 700;
}

.tag--amber {
  border-color: rgba(246, 184, 74, 0.45);
  background: rgba(246, 184, 74, 0.08);
  color: var(--amber);
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
}

.tag--clay {
  border-color: rgba(183, 110, 79, 0.62);
  background: rgba(183, 110, 79, 0.2);
  color: #f3c6b1;
}

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

/* ---------- 战术板贴片 ---------- */

.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--edge);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(23, 53, 44, 0.9) 0%, rgba(11, 31, 26, 0.88) 100%);
  box-shadow: var(--shadow-paper);
}

.panel::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 42px;
  height: 42px;
  border-top: 1px solid rgba(53, 240, 208, 0.4);
  border-right: 1px solid rgba(53, 240, 208, 0.4);
  border-top-right-radius: 14px;
  pointer-events: none;
}

/* ---------- 图片容器（页面阶段放置占位） ---------- */

.figure {
  display: grid;
  gap: 10px;
  margin: 0;
}

.figure-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--edge);
  border-radius: 12px;
  background-color: #0d241d;
  background-image:
    linear-gradient(rgba(53, 240, 208, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 240, 208, 0.06) 1px, transparent 1px),
    radial-gradient(circle at 30% 22%, rgba(53, 240, 208, 0.18), transparent 58%),
    radial-gradient(circle at 78% 84%, rgba(255, 122, 61, 0.16), transparent 55%);
  background-size: 32px 32px, 32px 32px, cover, cover;
}

.figure-media::before {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(53, 240, 208, 0.16);
  border-radius: 50%;
  pointer-events: none;
}

.figure-media > img,
.figure-media > picture,
.figure-media > picture > img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure-media--wide { aspect-ratio: 21 / 9; }
.figure-media--tall { aspect-ratio: 4 / 5; }

.figure-caption {
  font-size: 12px;
  line-height: 1.65;
  color: rgba(221, 231, 227, 0.6);
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(221, 231, 227, 0.55);
}

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

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

.breadcrumb-list li + li::before {
  content: "/";
  color: rgba(242, 239, 228, 0.25);
}

.breadcrumb a {
  color: rgba(221, 231, 227, 0.7);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.breadcrumb a:hover { color: var(--cyan); }

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

/* ---------- 入场显现 ---------- */

[data-js="true"] [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

[data-js="true"] [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1120px) {
  .nav {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: flex;
    justify-content: flex-end;
    margin: 0;
    padding: clamp(10px, 2.4vw, 22px);
    background: rgba(8, 18, 15, 0.68);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s var(--ease), visibility 0.28s var(--ease);
  }

  .nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
  }

  .nav-panel {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 16px;
    width: min(86vw, 360px);
    height: 100%;
    padding: 22px 18px 30px;
    overflow-y: auto;
    border: 1px solid rgba(242, 239, 228, 0.16);
    border-radius: 22px;
    background: linear-gradient(168deg, #17352c 0%, #0b1f1a 68%);
    box-shadow: -26px 0 64px -32px rgba(0, 0, 0, 0.95);
    transform: translateX(112%);
    transition: transform 0.36s var(--ease);
  }

  .nav[data-open="true"] .nav-panel { transform: translateX(0); }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    display: block;
    padding: 13px 14px;
    font-size: 15px;
    border-radius: 12px;
  }

  .nav-quick {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin: 4px 0 0;
    padding: 16px 0 0;
    border-left: 0;
    border-top: 1px solid var(--edge);
  }

  .chip-link {
    text-align: center;
    padding: 12px 14px;
    font-size: 13px;
  }

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

@media (max-width: 960px) {
  .footer-top {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 30px;
  }

  .footer-brand { grid-column: 1 / -1; }
  .footer-about { max-width: 46ch; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }

  .header-shell { padding-left: 12px; }

  .brand-name { font-size: 14.5px; letter-spacing: 0.08em; }
  .brand-tag { display: none; }

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

  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 18px;
  }

  .footer-base {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .btn { width: 100%; }
}

@media (max-width: 420px) {
  .brand-version { display: none; }
  .brand-glyph { width: 26px; height: 26px; }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }

  [data-js="true"] [data-reveal],
  [data-js="true"] [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}