/* ==========================================================================
   易贝体育 · 共享样式 /assets/site.css
   战术板 + 数据中心：左右分屏、切角面板、24° 斜纹、等宽索引
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --abyss: #0A1F33;
  --night: #123A5A;
  --cyan: #1FE0D0;
  --coral: #FF6A3D;
  --mist: #A7F3ED;
  --moss: #4F7C5B;
  --silver: #C6D0D9;
  --fog: #F5F8FA;
  --paper: #FFFFFF;
  --void: #050E18;

  --line: rgba(31, 224, 208, 0.24);
  --line-soft: rgba(198, 208, 217, 0.15);

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

  --header-h: 76px;
  --gutter: clamp(1.15rem, 4vw, 3.5rem);
  --maxw: 1280px;
  --notch: 12px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --speed: 280ms;
}

@media (max-width: 640px) {
  :root { --header-h: 64px; }
}

/* ---------- 2. 重置与基础排版 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background-color: var(--abyss);
  background-image:
    linear-gradient(180deg, rgba(5, 14, 24, 0.9) 0%, rgba(10, 31, 51, 0) 22%),
    radial-gradient(1200px 620px at 88% -8%, rgba(31, 224, 208, 0.10), transparent 62%),
    radial-gradient(900px 520px at 4% 108%, rgba(79, 124, 91, 0.14), transparent 66%);
  color: var(--fog);
  font-family: var(--font-sans);
  font-size: clamp(16px, 1.1vw + 12px, 17px);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img,
svg,
video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5.4vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.75rem); }
h4 { font-size: 1.375rem; }

strong { font-weight: 900; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

::selection {
  background: var(--coral);
  color: var(--abyss);
}

[id] { scroll-margin-top: calc(var(--header-h) + 1.25rem); }

/* ---------- 3. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--narrow { max-width: 820px; }
.wrap--wide { max-width: 1480px; }

.section { padding-block: clamp(2.5rem, 6vw, 5rem); }
.section--tight { padding-block: clamp(1.75rem, 4vw, 3rem); }

.stack > * + * { margin-top: var(--stack-gap, 1.1rem); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.split--reverse { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }

@media (max-width: 900px) {
  .split,
  .split--reverse { grid-template-columns: minmax(0, 1fr); }
}

#main-content { padding-top: var(--header-h); }
#main-content.u-bleed-top { padding-top: 0; }

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

/* ---------- 4. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 0.6rem;
  left: 0.6rem;
  z-index: 400;
  transform: translateY(-180%);
  padding: 0.7rem 1.1rem;
  background: var(--cyan);
  color: var(--abyss);
  font-weight: 700;
  font-size: 0.9375rem;
  transition: transform 0.22s var(--ease);
}

.skip-link:focus { transform: translateY(0); }

/* ---------- 5. 头部 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  color: var(--fog);
  background: linear-gradient(180deg, rgba(5, 14, 24, 0.74), rgba(5, 14, 24, 0));
  border-bottom: 1px solid transparent;
  transition: background var(--speed) var(--ease),
              border-color var(--speed) var(--ease),
              box-shadow var(--speed) var(--ease);
}

.site-header[data-state="solid"] {
  background: rgba(10, 31, 51, 0.95);
  border-bottom-color: var(--line);
  box-shadow: 0 22px 44px -34px rgba(0, 0, 0, 0.95);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(31, 224, 208, 0.12);
  overflow: hidden;
}

.header-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 62%, var(--coral) 100%);
  will-change: transform;
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(0.85rem, 2.4vw, 2.25rem);
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: var(--header-h);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex: 0 0 auto;
  min-width: 0;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  background: linear-gradient(148deg, var(--cyan) 0%, #0F8F8C 100%);
  color: var(--abyss);
  font-size: 1.0625rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.brand__name {
  font-size: 1.0625rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--paper);
  white-space: nowrap;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1;
  color: rgba(31, 224, 208, 0.88);
  white-space: nowrap;
}

/* 主导航 */
.site-nav { margin-left: auto; }

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 1.5vw, 1.35rem);
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.42rem;
  padding: 0.55rem 0.1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(245, 248, 250, 0.78);
  transition: color 0.2s var(--ease);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--moss);
  transition: color 0.2s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.12rem;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.26s var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible { color: var(--paper); }
.site-nav__link:hover .site-nav__idx { color: var(--cyan); }
.site-nav__link:hover::after,
.site-nav__link:focus-visible::after { transform: scaleX(1); }

.site-nav__link[aria-current="page"] { color: var(--cyan); }
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--coral); }
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--coral);
}

/* 头部工具区 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: 0 0 auto;
  margin-left: clamp(0.5rem, 1.4vw, 1.25rem);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(198, 208, 217, 0.28);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--cyan);
  background: rgba(31, 224, 208, 0.1);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 14px;
}

.nav-toggle__bars i {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--fog);
  transition: transform 0.26s var(--ease), opacity 0.18s linear, background 0.2s linear;
}

.nav-toggle__bars i:nth-child(1) { top: 0; }
.nav-toggle__bars i:nth-child(2) { top: 6px; }
.nav-toggle__bars i:nth-child(3) { top: 12px; }

.nav-toggle[aria-expanded="true"] { border-color: var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i { background: var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 遮罩 */
.nav-scrim {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 14, 24, 0.66);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}

.nav-scrim[data-open] {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 6. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(2.5rem, 7vw, 6rem);
  background: var(--void);
  color: var(--silver);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 30%, var(--coral) 74%, transparent);
  opacity: 0.6;
}

.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    24deg,
    rgba(31, 224, 208, 0.055) 0 1px,
    transparent 1px 16px
  );
  pointer-events: none;
}

.site-footer__glow {
  position: absolute;
  top: -180px;
  right: -120px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(31, 224, 208, 0.14) 0%, transparent 68%);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) repeat(4, minmax(0, 1fr));
  gap: clamp(1.75rem, 3.4vw, 3rem) clamp(1.25rem, 2.2vw, 2rem);
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(2.75rem, 6vw, 4.5rem) var(--gutter) clamp(2rem, 4vw, 3rem);
}

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

.footer-brand .brand { margin-bottom: 1.1rem; }

.footer-brand__note {
  max-width: 34ch;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(198, 208, 217, 0.78);
}

.footer-meter {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.footer-meter__item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.footer-meter__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.footer-meter__label {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(198, 208, 217, 0.6);
}

.footer-contact {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.6rem;
  font-size: 0.8125rem;
}

.footer-contact li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
}

.footer-contact__k {
  flex: 0 0 auto;
  min-width: 2.4rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: rgba(31, 224, 208, 0.85);
}

.footer-contact__v {
  color: var(--silver);
  overflow-wrap: anywhere;
}

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

.footer-col__title {
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--fog);
}

.footer-col__list { display: grid; gap: 0.6rem; }

.footer-col__list a {
  display: inline-block;
  font-size: 0.875rem;
  color: rgba(198, 208, 217, 0.82);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.footer-col__list a:hover,
.footer-col__list a:focus-visible {
  color: var(--cyan);
  transform: translateX(4px);
}

.footer-base {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line-soft);
}

.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.75rem;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 1.25rem var(--gutter) 2.25rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(198, 208, 217, 0.68);
}

.footer-base__legal { color: var(--mist); }
.footer-base__addr { max-width: 46ch; }
.footer-base__copy { color: rgba(198, 208, 217, 0.55); }

/* ---------- 7. 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background-color 0.22s var(--ease),
              border-color 0.22s var(--ease),
              color 0.22s var(--ease),
              transform 0.22s var(--ease);
}

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

.btn--accent {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--abyss);
}

.btn--accent:hover,
.btn--accent:focus-visible {
  background: #FF8759;
  border-color: #FF8759;
}

.btn--ghost {
  background: transparent;
  border-color: rgba(198, 208, 217, 0.34);
  color: var(--fog);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(31, 224, 208, 0.12);
  border-color: var(--cyan);
  color: var(--paper);
}

.btn--line {
  background: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--line:hover,
.btn--line:focus-visible {
  background: rgba(31, 224, 208, 0.14);
  color: var(--paper);
}

.btn--lg {
  padding: 0.95rem 1.6rem;
  font-size: 1rem;
}

/* ---------- 8. 通用组件 ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  flex: 0 0 auto;
  background: var(--coral);
}

.lede {
  max-width: 34ch;
  font-size: clamp(1.0625rem, 1.3vw + 0.7rem, 1.1875rem);
  line-height: 1.75;
  color: rgba(245, 248, 250, 0.86);
}

.muted { color: rgba(198, 208, 217, 0.72); }

.mono {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.panel {
  position: relative;
  padding: clamp(1.25rem, 2.6vw, 1.95rem);
  background: linear-gradient(158deg, rgba(18, 58, 90, 0.94) 0%, rgba(10, 31, 51, 0.96) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(
    0 0,
    calc(100% - var(--notch)) 0,
    100% var(--notch),
    100% 100%,
    var(--notch) 100%,
    0 calc(100% - var(--notch))
  );
}

.panel--soft {
  background: linear-gradient(158deg, rgba(31, 224, 208, 0.10) 0%, rgba(18, 58, 90, 0.92) 100%);
}

.panel--light {
  background: var(--fog);
  border-color: rgba(10, 31, 51, 0.12);
  color: var(--abyss);
}

.panel--light .muted { color: rgba(10, 31, 51, 0.68); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.4;
}

.tag--cyan { color: var(--cyan); }
.tag--coral { color: var(--coral); }
.tag--moss { color: #8FC49C; }
.tag--soft {
  background: var(--mist);
  border-color: transparent;
  color: var(--abyss);
}

.band {
  background-image: repeating-linear-gradient(
    24deg,
    rgba(31, 224, 208, 0.13) 0 1px,
    transparent 1px 14px
  );
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(198, 208, 217, 0.7);
}

.breadcrumb li { display: inline-flex; align-items: center; gap: 0.5rem; }

.breadcrumb li + li::before {
  content: "/";
  color: rgba(198, 208, 217, 0.38);
}

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

.index-link {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line-soft);
  color: rgba(245, 248, 250, 0.8);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.index-link:hover { color: var(--paper); border-bottom-color: var(--cyan); }
.index-link.is-current {
  color: var(--cyan);
  border-bottom-color: var(--coral);
}

/* 媒体容器（供页面阶段放置图片） */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  background: linear-gradient(150deg, var(--night) 0%, var(--abyss) 100%);
}

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

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(5, 14, 24, 0) 34%, rgba(5, 14, 24, 0.78) 100%);
  pointer-events: none;
}

.media__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.5;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.media__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  padding: 0.45rem 0.75rem;
  background: var(--abyss);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--3x4 { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--wide { aspect-ratio: 21 / 9; }

.media--notch {
  clip-path: polygon(
    0 0,
    calc(100% - 18px) 0,
    100% 18px,
    100% 100%,
    18px 100%,
    0 calc(100% - 18px)
  );
}

/* ---------- 9. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 10. 响应式 ---------- */
@media (min-width: 1121px) {
  .nav-scrim { display: none; }
}

@media (max-width: 1120px) {
  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    bottom: 0;
    z-index: 2;
    width: min(380px, 86vw);
    margin-left: 0;
    padding: 2rem var(--gutter) 3rem;
    background: linear-gradient(180deg, rgba(10, 31, 51, 0.99) 0%, rgba(5, 14, 24, 0.99) 100%);
    border-left: 1px solid var(--line);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(103%);
    visibility: hidden;
    transition: transform 0.34s var(--ease), visibility 0.34s var(--ease);
  }

  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__item + .site-nav__item { border-top: 1px solid var(--line-soft); }

  .site-nav__link {
    justify-content: flex-start;
    padding: 1.05rem 0;
    font-size: 1.125rem;
    font-weight: 700;
  }

  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] { color: var(--cyan); }

  .site-nav__idx { font-size: 0.6875rem; }

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

  .header-tools { margin-left: auto; }

  html.is-nav-open { overflow: hidden; }
}

@media (min-width: 901px) {
  .header-tools__ghost { display: inline-flex; }
}

@media (max-width: 900px) {
  .header-tools__ghost { display: none; }

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

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .brand__sub { display: none; }

  .brand__mark { width: 32px; height: 32px; font-size: 0.9375rem; }

  .brand__name { font-size: 1rem; }

  .btn { padding: 0.62rem 0.9rem; font-size: 0.875rem; }

  .footer-inner { grid-template-columns: minmax(0, 1fr); }

  .footer-base__inner { flex-direction: column; align-items: flex-start; }

  .footer-meter { gap: 1.1rem; }
}

/* ---------- 11. 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}