/* ============================================================
   聊球官方 · site.css  /assets/site.css
   共享外壳：reset · 变量 · 中文排版 · 页头 · 页脚 · 通用组件
   ============================================================ */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 132px; }
body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dt, dd { margin: 0; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
address { font-style: normal; }
table { border-collapse: collapse; }

/* ---------- 变量 ---------- */
:root {
  --ink: #0A1128;
  --ink-2: #101A3D;
  --glass: #1B2A5E;
  --lime: #00E676;
  --lime-deep: #00A85A;
  --violet: #7C4DFF;
  --amber: #FF6D00;
  --text: #E8ECFF;
  --muted: #9AA7C7;
  --graphite: #05070F;

  --line: rgba(154, 167, 199, .18);
  --line-strong: rgba(124, 77, 255, .34);
  --tint-lime: rgba(0, 230, 118, .12);
  --tint-violet: rgba(124, 77, 255, .14);

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

  --wrap: 1180px;
  --gutter: clamp(18px, 4vw, 40px);
  --gap: clamp(16px, 2.4vw, 28px);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 44px -22px rgba(5, 7, 15, .95);

  --dur-fast: 140ms;
  --dur: 200ms;
  --dur-in: 400ms;
  --ease: cubic-bezier(.22, .68, .28, 1);

  --header-h: 112px;
}

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

/* ---------- 基础排版 ---------- */
body {
  min-height: 100vh;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: clamp(16px, .35vw + 15px, 18px);
  line-height: 1.8;
  font-weight: 400;
  letter-spacing: .012em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(58vw 40vw at 84% -10%, rgba(124, 77, 255, .20), transparent 62%),
    radial-gradient(46vw 34vw at 6% 2%, rgba(0, 230, 118, .11), transparent 64%);
}

main, .site-main { position: relative; z-index: 1; display: block; }

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--text);
}
h1 { font-size: clamp(2.3rem, 5.4vw, 4.4rem); }
h2 { font-size: clamp(1.6rem, 2.9vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1.5vw, 1.42rem); font-weight: 700; line-height: 1.4; }
h4 { font-size: 1.02rem; font-weight: 700; line-height: 1.5; }
p { max-width: 72ch; }
strong { color: var(--text); font-weight: 700; }

::selection { background: var(--lime); color: #04170C; }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 5px;
}

/* ---------- 布局原子 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { position: relative; padding-block: clamp(44px, 7vw, 92px); }
.section--tight { padding-block: clamp(28px, 4vw, 56px); }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}
@media (max-width: 760px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

.slant-rule {
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--lime), rgba(0, 230, 118, .1) 55%, var(--violet));
  transform: skewY(-1.4deg);
  transform-origin: left center;
}

/* ---------- 通用文本组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .62em;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lime);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: .75;
}

.lead { font-size: 1.06rem; color: var(--muted); max-width: 64ch; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }

.section-head { display: grid; gap: 10px; margin-bottom: clamp(22px, 3vw, 38px); }
.section-head__index {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .22em;
  color: var(--lime);
}

/* ---------- 层与卡片 ---------- */
.glass {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(27, 42, 94, .66), rgba(16, 26, 61, .38));
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
.solid {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

/* ---------- 按钮 / 标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: .7em 1.25em;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  line-height: 1.2;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.btn--primary {
  background: var(--lime);
  color: #04170C;
  font-weight: 700;
  box-shadow: 0 0 0 1px rgba(0, 230, 118, .35), 0 14px 30px -16px rgba(0, 230, 118, .85);
}
.btn--primary:hover { background: #2BFF90; transform: translateY(-1px); }
.btn--ghost {
  border-color: var(--line-strong);
  color: var(--text);
  background: rgba(27, 42, 94, .42);
}
.btn--ghost:hover { border-color: var(--lime); color: var(--lime); }
.btn--amber { border-color: rgba(255, 109, 0, .55); color: var(--amber); }
.btn--amber:hover { background: rgba(255, 109, 0, .12); }
.btn:active { transform: translateY(0); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: .45em;
  padding: .42em .92em;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(27, 42, 94, .35);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.chip:hover { color: var(--text); }
.chip.is-active,
.chip[aria-pressed="true"] {
  color: var(--lime);
  border-color: var(--lime);
  background: var(--tint-lime);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: .28em .72em;
  border-radius: 999px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--violet);
}
.tag--lime { color: var(--lime); }
.tag--amber { color: var(--amber); }
.tag--muted { color: var(--muted); }

/* ---------- 数据块 ---------- */
.stat { display: grid; gap: 6px; }
.stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 可展开内容组 ---------- */
.disclosure { border-bottom: 1px solid var(--line); }
.disclosure__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 0;
  text-align: left;
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--text);
}
.disclosure__trigger::before {
  content: "";
  align-self: stretch;
  flex: 0 0 3px;
  width: 3px;
  border-radius: 2px;
  background: var(--violet);
  transform: scaleY(.3);
  transform-origin: top center;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.disclosure[data-open] .disclosure__trigger::before {
  background: var(--lime);
  transform: scaleY(1);
}
.disclosure__trigger:hover { color: var(--lime); }
.disclosure__index {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--muted);
}
.disclosure__icon {
  flex: 0 0 auto;
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.disclosure[data-open] .disclosure__icon {
  transform: rotate(-135deg);
  border-color: var(--lime);
}
.disclosure__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur) var(--ease);
}
.disclosure__panel > div { overflow: hidden; }
.disclosure[data-open] .disclosure__panel { grid-template-rows: 1fr; }
.disclosure__panel p { color: var(--muted); padding: 0 0 20px 17px; max-width: 68ch; }

/* ---------- 复制动作 ---------- */
.copy-btn {
  padding: .3em .72em;
  border: 1px dashed rgba(124, 77, 255, .55);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--violet);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), border-style var(--dur) var(--ease);
}
.copy-btn:hover { color: var(--text); border-color: var(--text); }
.copy-btn[data-copied] { color: var(--lime); border-color: var(--lime); border-style: solid; }

/* ---------- 媒体容器（供后续页面放 SVG / 占位） ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, #141F49 0%, #0C1430 62%, #0A1128 100%);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(0, 230, 118, .14), transparent 56%),
    radial-gradient(90% 80% at 92% 100%, rgba(124, 77, 255, .22), transparent 62%);
}
.media__frame {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  width: 100%;
}
.media--wide .media__frame { aspect-ratio: 21 / 9; }
.media--tall .media__frame { aspect-ratio: 3 / 4; }
.media__frame img,
.media__frame svg { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; }
.media__caption {
  position: relative;
  z-index: 1;
  padding: .7em 1em;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--muted);
}
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: .55em; }
.breadcrumb li { display: inline-flex; align-items: center; gap: .55em; }
.breadcrumb li + li::before { content: "/"; color: var(--violet); }
.breadcrumb a:hover { color: var(--lime); }

/* ============================================================
   页头
   ============================================================ */
.skip-link {
  position: fixed;
  top: 8px;
  left: 50%;
  z-index: 200;
  padding: .62em 1.15em;
  border-radius: 999px;
  background: var(--lime);
  color: #04170C;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  transform: translate(-50%, -180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(10, 17, 40, .88);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
}
.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(0, 230, 118, .55) 22%, rgba(124, 77, 255, .55) 78%, transparent);
}

.masthead {
  display: grid;
  gap: 8px;
  padding-block: 18px 0;
  transition: padding var(--dur) var(--ease);
}
.site-header[data-scrolled] .masthead { padding-block: 8px 0; }

.masthead__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
}

.masthead__tick {
  justify-self: start;
  width: min(180px, 15vw);
  height: 7px;
  opacity: .7;
  transform: rotate(-8deg);
  transform-origin: left center;
  background-image: repeating-linear-gradient(90deg, rgba(0, 230, 118, .6) 0 1px, transparent 1px 11px);
}

.masthead__brand { justify-self: center; display: grid; gap: 3px; text-align: center; }

.brand { display: inline-flex; align-items: baseline; gap: .5em; }
.brand__mark {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--lime);
  border: 1px solid rgba(0, 230, 118, .45);
  border-radius: 5px;
  padding: .12em .42em;
  transform: translateY(-.28em);
}
.brand__name {
  font-size: clamp(1.25rem, 2.6vw, 1.85rem);
  font-weight: 900;
  letter-spacing: .07em;
}
.brand__tagline {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--muted);
  transition: opacity var(--dur) var(--ease);
}
.site-header[data-scrolled] .brand__tagline { opacity: .68; }

.masthead__tools {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 导航 */
.main-nav { margin-top: 12px; border-top: 1px solid var(--line); padding-block: 10px 12px; }
.main-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(10px, 2vw, 28px);
}
.main-nav__link {
  position: relative;
  display: inline-block;
  padding: .38em .18em;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .06em;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}
.main-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}
.main-nav__link:hover { color: var(--text); }
.main-nav__link:hover::after { transform: scaleX(1); }
.main-nav__link[aria-current="page"] { color: var(--lime); }
.main-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.main-nav__cta { display: none; }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: .55em;
  padding: .58em .92em;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(27, 42, 94, .5);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--text);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }
.nav-toggle__bars { display: grid; gap: 4px; width: 16px; }
.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  border-radius: 2px;
  background: var(--lime);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child { transform: translateY(2.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child { transform: translateY(-2.75px) rotate(-45deg); }

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--lime), var(--violet));
}

/* ---------- 移动端页头 ---------- */
@media (max-width: 899px) {
  body.nav-open { overflow: hidden; }

  .masthead { padding-block: 12px 0; }
  .masthead__top { grid-template-columns: auto 1fr; gap: 12px; }
  .masthead__tick { display: none; }
  .masthead__brand { justify-self: start; text-align: left; }
  .masthead__tools { justify-self: end; }
  .masthead__tools .btn { display: none; }
  .nav-toggle { display: inline-flex; }

  .brand__tagline { font-size: .66rem; letter-spacing: .1em; }

  .main-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    bottom: 0;
    z-index: 80;
    margin-top: 0;
    padding: 22px var(--gutter) 56px;
    overflow-y: auto;
    background: rgba(10, 17, 40, .975);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-top: 1px solid var(--line);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) var(--ease);
  }
  .main-nav[data-open] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }
  .main-nav__list {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--line);
  }
  .main-nav__item { border-bottom: 1px solid var(--line); }
  .main-nav__link {
    display: block;
    padding: .92em 0;
    font-size: .98rem;
    letter-spacing: .04em;
  }
  .main-nav__link::after { display: none; }
  .main-nav__link[aria-current="page"] { padding-left: .8em; box-shadow: inset 3px 0 0 var(--lime); }
  .main-nav__cta { display: grid; gap: 10px; margin-top: 22px; }
  .main-nav__cta .btn { width: 100%; }
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(56px, 9vw, 120px);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 0;
  right: 0;
  height: 8px;
  opacity: .5;
  background-image: repeating-linear-gradient(90deg, rgba(154, 167, 199, .42) 0 1px, transparent 1px 16px);
}
.site-footer::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), rgba(0, 230, 118, 0) 48%, var(--violet));
  opacity: .8;
}

.footer__inner { padding-block: clamp(40px, 6vw, 74px) 26px; }

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr);
  gap: clamp(28px, 5vw, 64px);
}

.footer__wordmark { font-size: 1.15rem; font-weight: 900; letter-spacing: .1em; }
.footer__tagline {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--lime);
}

.footer__contact { display: grid; gap: 8px; margin-top: 22px; }
.footer__contact-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}
.footer__contact dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--violet);
}
.footer__contact dd {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--text);
  word-break: break-word;
}
.footer__service {
  margin-top: 14px;
  max-width: 46ch;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--muted);
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  margin-top: 20px;
  padding: .55em .95em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--muted);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.to-top:hover { color: var(--lime); border-color: var(--lime); }

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}
.footer__col-title {
  display: flex;
  align-items: center;
  gap: .7em;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
}
.footer__col-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
.footer__links a {
  display: block;
  padding: .42em 0;
  font-size: .92rem;
  color: var(--muted);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer__links a:hover { color: var(--text); padding-left: .35em; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--muted);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: .5em 1.1em; }
.footer__legal a { transition: color var(--dur) var(--ease); }
.footer__legal a:hover { color: var(--lime); }
.footer__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .7em; }
.footer__icp { color: var(--muted); }
.footer__sep { color: var(--violet); }

@media (max-width: 899px) {
  .footer__top { grid-template-columns: minmax(0, 1fr); }
  .footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .footer__cols { grid-template-columns: minmax(0, 1fr); }
  .footer__contact-row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

/* ============================================================
   显现动画
   ============================================================ */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-in) var(--ease), transform var(--dur-in) var(--ease);
}
html.js [data-reveal].is-in { opacity: 1; transform: none; }

/* ============================================================
   降级
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  html.js [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress { display: none; }
}