/* ============================================================
   易倍赛事 · EMC / 全站共享样式  /assets/site.css
   夜场看台 × 数据面板：深绿基底、1px 网格、荧光青与暖橙双强调
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 24px);
}

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

/* ---------- 2. Tokens ---------- */
:root {
  /* 色彩 */
  --ink: #05130E;
  --turf-deep: #0A2418;
  --turf-mid: #1B5A3A;
  --line-green: #2F8F5B;
  --cyan: #62F6D8;
  --signal: #1FD6A8;
  --orange: #FF8A3D;
  --orange-lo: #B95722;
  --bone: #F3F5EC;
  --mist: #A9B8AE;

  --line: rgba(47, 143, 91, 0.34);
  --line-soft: rgba(47, 143, 91, 0.16);
  --line-lit: rgba(98, 246, 216, 0.55);
  --grid-ghost: rgba(47, 143, 91, 0.07);
  --glass: rgba(5, 19, 14, 0.92);

  /* 字体 */
  --font-display: "Barlow Condensed", "Oswald", "Arial Narrow", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-data: "IBM Plex Mono", "JetBrains Mono", SFMono-Regular, Consolas, monospace;

  /* 尺寸 */
  --bar-h: 72px;
  --rail-w: 0px;
  --shell: 1280px;

  /* 动效 */
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur: 160ms;
}

@media (min-width: 1080px) {
  :root { --rail-w: 104px; }
}
@media (min-width: 1400px) {
  :root { --rail-w: 118px; }
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  padding-top: var(--bar-h);
  padding-left: var(--rail-w);
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, var(--grid-ghost) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-ghost) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main { display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(42px, 6vw, 78px); }
h2 { font-size: clamp(28px, 3.4vw, 40px); }
h3 { font-size: clamp(19px, 1.8vw, 24px); line-height: 1.25; }
h4 { font-size: 17px; line-height: 1.35; }

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

/* ---------- 4. 布局与通用组件 ---------- */
.container {
  width: min(var(--shell), 100% - 40px);
  margin-inline: auto;
}
@media (min-width: 720px) {
  .container { width: min(var(--shell), 100% - 64px); }
}

.grid {
  display: grid;
  gap: clamp(14px, 2vw, 24px);
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
@media (min-width: 720px) {
  .grid { grid-template-columns: repeat(8, minmax(0, 1fr)); }
}
@media (min-width: 1080px) {
  .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
}
.grid--tight { gap: 8px; }
.grid--loose { gap: clamp(24px, 3vw, 40px); }

.section {
  position: relative;
  padding-block: clamp(40px, 6vw, 88px);
}
.section--tight { padding-block: clamp(26px, 4vw, 56px); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 32px;
  padding-bottom: 18px;
  margin-bottom: clamp(22px, 3vw, 40px);
  border-bottom: 1px solid var(--line);
}
.section__index {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--line-green);
}
.section__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.02;
}
.section__lede {
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

.hairline {
  height: 1px;
  border: 0;
  background: var(--line);
}

.data {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  background: rgba(10, 36, 24, 0.65);
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.5;
}
.tag--cyan { color: var(--cyan); border-color: rgba(98, 246, 216, 0.45); }
.tag--orange { color: var(--orange); border-color: rgba(255, 138, 61, 0.45); }
.tag--solid { background: var(--orange); border-color: var(--orange); color: var(--ink); }

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(243, 245, 236, 0.88);
}
.prose p + p { margin-top: 1em; }
.prose h2 { margin-top: 1.8em; margin-bottom: 0.5em; }
.prose h3 { margin-top: 1.6em; margin-bottom: 0.4em; }
.prose ul, .prose ol { margin-top: 1em; padding-left: 1.2em; }
.prose ul li { list-style: none; position: relative; padding-left: 16px; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 1px;
  background: var(--line-green);
}
.prose ol { list-style: decimal; }
.prose strong { color: var(--bone); font-weight: 700; }

/* 首屏滑入透明页头下方 */
.hero-bleed { margin-top: calc(-1 * var(--bar-h)); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--line-lit);
  background: transparent;
  color: var(--bone);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  line-height: 1;
  text-align: center;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.btn:hover,
.btn:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.btn--accent {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}
.btn--accent:hover,
.btn--accent:focus-visible {
  background: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--outline {
  border-color: var(--line);
  color: var(--mist);
}
.btn--outline:hover,
.btn--outline:focus-visible {
  background: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 6. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line);
  background:
    linear-gradient(150deg, var(--turf-mid) 0%, var(--turf-deep) 46%, var(--ink) 100%);
}
.media img,
.media svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 19, 14, 0) 45%, rgba(5, 19, 14, 0.78) 100%);
}
.media--plain::after { content: none; }
.media--cut { clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), 0 100%); }

.media--16x9 { aspect-ratio: 16 / 9; }
.media--3x2  { aspect-ratio: 3 / 2; }
.media--4x3  { aspect-ratio: 4 / 3; }
.media--1x1  { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media--wide { aspect-ratio: 21 / 9; }

.media__tag {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding: 6px 10px;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-data);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  line-height: 1.4;
}
.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 14px 16px;
  color: var(--bone);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.6;
}

/* ---------- 7. 页头 ---------- */
.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 60;
  color: var(--bone);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.site-header[data-scrolled="true"] {
  background: var(--glass);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.site-header[data-open="true"] {
  background: var(--turf-deep);
  border-bottom-color: var(--line);
}

/* 遮罩：仅在抽屉打开时可见，指针穿透以便点击外部关闭 */
.site-header::after {
  content: "";
  position: fixed;
  inset: var(--bar-h) 0 0 0;
  z-index: 57;
  background: rgba(5, 19, 14, 0.72);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms var(--ease);
}
.site-header[data-open="true"]::after { opacity: 1; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--bone);
  outline-offset: 2px;
}

.site-header__bar {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  height: var(--bar-h);
  padding-right: clamp(14px, 3vw, 32px);
  padding-left: calc(var(--rail-w) + clamp(14px, 3vw, 32px));
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
  min-width: 0;
}
.brand__mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-lit);
  color: var(--cyan);
  transition: border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.brand:hover .brand__mark,
.brand:focus-visible .brand__mark {
  border-color: var(--cyan);
  background: rgba(98, 246, 216, 0.1);
  color: var(--bone);
}
.brand__text { display: block; min-width: 0; }
.brand__name {
  display: block;
  color: var(--bone);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1;
  letter-spacing: 0.1em;
  transition: color var(--dur) var(--ease);
}
.brand:hover .brand__name { color: var(--cyan); }
.brand__sub {
  display: block;
  margin-top: 6px;
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

/* 页头工具索引 */
.header-utility {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 22px;
}
.header-utility__link {
  position: relative;
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.16em;
  transition: color var(--dur) var(--ease);
}
.header-utility__link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur) var(--ease);
}
.header-utility__link:hover,
.header-utility__link:focus-visible { color: var(--cyan); }
.header-utility__link:hover::after,
.header-utility__link:focus-visible::after { transform: scaleX(1); }

.header-cta {
  margin-left: auto;
  padding: 10px 14px;
  font-size: 11.5px;
  white-space: nowrap;
}

/* 移动折叠按钮 */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  color: var(--bone);
  transition: border-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              background var(--dur) var(--ease);
}
.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(98, 246, 216, 0.08);
}
.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: transform 200ms var(--ease), opacity 160ms var(--ease);
}
.nav-toggle__bar + .nav-toggle__bar { margin-top: 4px; }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.site-header[data-open="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* 主导航：移动端为纵向索引抽屉 */
.site-nav {
  position: fixed;
  top: var(--bar-h);
  bottom: 0;
  left: 0;
  z-index: 58;
  width: min(340px, 86vw);
  padding: 26px 24px 40px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--turf-deep);
  border-right: 1px solid var(--line);
  visibility: hidden;
  transform: translateX(-101%);
  transition: transform 220ms var(--ease), visibility 220ms var(--ease);
}
.site-header[data-open="true"] .site-nav {
  transform: translateX(0);
  visibility: visible;
}

.site-nav__caption {
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--line-green);
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.28em;
  line-height: 1.4;
}

.site-nav__list { display: flex; flex-direction: column; }

.site-nav__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: color var(--dur) var(--ease);
}
.site-nav__idx {
  flex: none;
  color: var(--line-green);
  font-family: var(--font-data);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  transition: color var(--dur) var(--ease);
}
.site-nav__label {
  color: var(--bone);
  font-size: 16.5px;
  letter-spacing: 0.06em;
  transition: color var(--dur) var(--ease);
}
.site-nav__link:hover .site-nav__label,
.site-nav__link:focus-visible .site-nav__label { color: var(--cyan); }
.site-nav__link:hover .site-nav__idx,
.site-nav__link:focus-visible .site-nav__idx { color: var(--orange); }
.site-nav__link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(98, 246, 216, 0.09), rgba(98, 246, 216, 0));
}
.site-nav__link[aria-current="page"] .site-nav__label { color: var(--cyan); }
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--orange); }

/* 滚动进度线 */
.header-progress {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--signal) 55%, var(--orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  transition: transform 80ms linear;
}

/* 桌面：左侧悬浮场次轴 */
@media (min-width: 1080px) {
  .site-header::after { content: none; }

  .header-utility { display: flex; gap: 18px; }
  .header-cta { margin-left: 0; }
  .nav-toggle { display: none; }

  .brand__name { font-size: 20px; }

  .site-nav {
    top: var(--bar-h);
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: var(--rail-w);
    padding: 24px 14px 24px 26px;
    background: rgba(5, 19, 14, 0.72);
    border-right: 1px solid var(--line-soft);
    border-left: 0;
    overflow-y: auto;
    visibility: visible;
    transform: none;
  }
  .site-header[data-open="true"] .site-nav {
    transform: none;
    visibility: visible;
  }

  .site-nav__caption {
    padding-bottom: 12px;
    margin-bottom: 8px;
    border-bottom: 0;
    font-size: 9.5px;
    letter-spacing: 0.2em;
  }

  .site-nav__list { gap: 2px; }

  .site-nav__link {
    display: grid;
    gap: 4px;
    padding: 8px 0;
    border-bottom: 0;
    background: none;
  }
  .site-nav__link::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -20px;
    width: 10px;
    height: 1px;
    background: var(--line-green);
    transform: translateY(-50%);
    transition: width var(--dur) var(--ease),
                background var(--dur) var(--ease);
  }
  .site-nav__link:hover::before,
  .site-nav__link:focus-visible::before,
  .site-nav__link[aria-current="page"]::before {
    width: 16px;
    background: var(--orange);
  }
  .site-nav__link[aria-current="page"] { background: none; }
  .site-nav__idx { font-size: 9.5px; }
  .site-nav__label {
    font-size: 12.5px;
    letter-spacing: 0.04em;
    color: var(--mist);
  }
  .site-nav__link:hover .site-nav__label,
  .site-nav__link[aria-current="page"] .site-nav__label { color: var(--cyan); }
}

/* 窄屏微调 */
@media (max-width: 480px) {
  .brand__sub { display: none; }
  .brand__mark { width: 32px; height: 32px; }
  .brand__name { font-size: 17px; }
  .header-cta { padding: 9px 11px; font-size: 11px; letter-spacing: 0.1em; }
  .site-header__bar { gap: 10px; }
}
@media (min-width: 1100px) {
  .brand__sub { display: block; }
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 128px);
  background: var(--turf-deep);
  border-top: 1px solid var(--line);
  color: var(--bone);
}

.site-footer__stripe {
  height: 7px;
  border-bottom: 1px solid var(--line-soft);
  background: repeating-linear-gradient(
    -45deg,
    var(--turf-mid) 0 5px,
    transparent 5px 13px
  );
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(40px, 6vw, 76px);
}
@media (min-width: 720px) {
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1080px) {
  .site-footer__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.6fr) minmax(0, 0.6fr) minmax(0, 1fr);
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}
.footer-brand__eyebrow {
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  line-height: 1.4;
}
.footer-brand__word {
  margin-block: -0.06em 0;
  color: var(--turf-mid);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(58px, 11vw, 112px);
  line-height: 0.82;
  letter-spacing: -0.02em;
  -webkit-text-stroke: 1px var(--line-green);
}
.footer-brand__note {
  max-width: 34ch;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}
.footer-brand__cta { margin-top: 6px; }

.footer-col__title {
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--mist);
  font-family: var(--font-data);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.22em;
  line-height: 1.4;
}
.footer-col__list {
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.footer-col__list a {
  position: relative;
  display: inline-block;
  color: var(--bone);
  font-size: 14.5px;
  line-height: 1.6;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer-col__list a::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width var(--dur) var(--ease);
}
.footer-col__list a:hover,
.footer-col__list a:focus-visible {
  padding-left: 16px;
  color: var(--cyan);
}
.footer-col__list a:hover::before,
.footer-col__list a:focus-visible::before { width: 10px; }

.footer-contact__address {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-contact__row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.6;
}
.footer-contact__key {
  color: var(--line-green);
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.16em;
}
.footer-contact__val {
  color: var(--bone);
  word-break: break-word;
}
.footer-contact__note {
  margin-top: 4px;
  color: var(--mist);
  font-size: 12.5px;
  line-height: 1.7;
}

.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 20px 26px;
  border-top: 1px solid var(--line-soft);
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.7;
}
.footer-meta { color: var(--mist); }
.footer-meta span[data-year] { color: var(--bone); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}
.footer-legal a {
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}
.footer-legal a:hover,
.footer-legal a:focus-visible { color: var(--cyan); }

/* ---------- 9. 显现动效 ---------- */
html[data-js="true"] [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 460ms var(--ease), transform 460ms var(--ease);
}
html[data-js="true"] [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 10. 焦点与无障碍 ---------- */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) { outline: none; }

@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;
  }
  html[data-js="true"] [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
  .header-progress { transition: none; }
}

/* ---------- 11. 平板过渡 ---------- */
@media (min-width: 720px) and (max-width: 1079px) {
  .site-nav { width: min(380px, 62vw); }
  .footer-brand__word { font-size: clamp(64px, 12vw, 96px); }
}