/* ============================================================
   信风跨境 aiechoic.com — 主题: 风
   分层: 固定流场画布(z:-1) → 半透明内容层 → 光效
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --ink:            #04070d;
  --ink-2:          #070b14;
  --panel:          rgba(255, 255, 255, .045);
  --panel-2:        rgba(255, 255, 255, .07);
  --line:           rgba(255, 255, 255, .1);
  --line-strong:    rgba(255, 255, 255, .18);

  --aqua:           #5de4c7;
  --sky:            #7dd3fc;
  --violet:         #a78bfa;

  --text:           #e9f0f8;
  --text-2:         #9fb0c4;
  --text-3:         #64748b;

  --grad-wind:      linear-gradient(100deg, var(--aqua), var(--sky) 46%, var(--violet));

  --font-sans:      "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
                    -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-display:   Georgia, "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong",
                    "PingFang SC", "Microsoft YaHei", serif;
  --font-mono:      "SF Mono", "JetBrains Mono", "Cascadia Mono", ui-monospace, Consolas, monospace;

  --wrap:           1200px;
  --ease-out:       cubic-bezier(.16, 1, .3, 1);
  --ease-wind:      cubic-bezier(.22, .61, .24, 1);

  /* 由 JS 实时写入: 阵风强度, 推动 hero 标题 */
  --gust:           0;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
/* 底色放在 html 上: body 若持有背景会被传播到画布, 盖掉 z-index:-1 的流场 */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 90px; background: #04070d; }
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: transparent;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 400; line-height: 1.24; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: rgba(93, 228, 199, .28); color: #fff; }
:focus-visible { outline: 2px solid var(--aqua); outline-offset: 3px; border-radius: 4px; }

/* 底噪: 一层极淡的颗粒, 让深色不发"塑料" */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 9;
  pointer-events: none; opacity: .04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: min(100% - 48px, var(--wrap)); margin-inline: auto; }

/* 键盘首个焦点: 跳过导航直达正文 */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 70;
  padding: 12px 20px; background: var(--ink-2); border: 1px solid var(--aqua); color: var(--text);
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 顶部进度: 一条被吹长的风带 ---------- */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  background: rgba(255, 255, 255, .05);
}
.progress__bar {
  display: block; height: 100%; width: 0;
  background: var(--grad-wind);
  box-shadow: 0 0 14px rgba(93, 228, 199, .7);
  transition: width .12s linear;
}

/* ---------- 竖排水印 ---------- */
.watermark {
  position: fixed; right: clamp(8px, 2.2vw, 34px); top: 50%; z-index: 1;
  writing-mode: vertical-rl; letter-spacing: .42em;
  font-family: var(--font-display);
  font-size: clamp(13px, 1.05vw, 17px);
  color: rgba(233, 240, 248, .16);
  pointer-events: none; user-select: none; white-space: nowrap;
  transform: translateY(-50%);
  will-change: transform;
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 32px;
  padding: 22px clamp(20px, 4vw, 52px);
  transition: padding .5s var(--ease-out), background .5s var(--ease-out),
              border-color .5s var(--ease-out), backdrop-filter .5s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck, .nav.is-solid {
  padding-block: 13px;
  background: rgba(4, 7, 13, .74);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav__brand { display: flex; align-items: center; gap: 11px; margin-right: auto; }
.nav__mark { width: 30px; height: 30px; color: var(--aqua); flex: none; }
.nav__brand:hover .nav__mark { animation: markGust .7s var(--ease-wind); }
@keyframes markGust {
  40%  { transform: translateX(5px) scaleX(1.14); }
  100% { transform: none; }
}
.nav__name { display: flex; flex-direction: column; line-height: 1.15; font-family: var(--font-display); font-size: 19px; letter-spacing: .1em; }
.nav__name em {
  font-style: normal; font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .34em; color: var(--text-3);
}
.nav__links { display: flex; gap: 30px; font-size: 14.5px; color: var(--text-2); }
.nav__links a { position: relative; padding-block: 4px; transition: color .3s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--grad-wind); transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav__links-cta { display: none; }

.nav__toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 6px;
  width: 42px; height: 42px; padding: 0 9px;
  background: none; border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer;
}
.nav__toggle span {
  display: block; height: 2px; border-radius: 2px;
  background: var(--text);
  transition: transform .25s var(--ease-out);
}
.nav.is-open .nav__toggle span:first-child { transform: translateY(4px) rotate(45deg); }
.nav.is-open .nav__toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 26px; border-radius: 999px;
  font-size: 14.5px; letter-spacing: .04em; white-space: nowrap;
  border: 1px solid var(--line-strong); background: var(--panel);
  color: var(--text);
  position: relative; overflow: hidden; isolation: isolate;
  transition: transform .35s var(--ease-out), border-color .35s, color .35s, box-shadow .35s;
  will-change: transform;
}
.btn--sm { padding: 9px 19px; font-size: 13.5px; }
.btn:hover { border-color: var(--aqua); color: var(--aqua); }
/* 掠过按钮的一道气流 */
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; transform: translateX(-101%);
  background: linear-gradient(90deg, transparent, rgba(93, 228, 199, .16), transparent);
  transition: transform .8s var(--ease-wind);
}
.btn:hover::before { transform: translateX(101%); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding: 140px clamp(20px, 4vw, 52px) 120px;
}
/* 流场画布常驻整页背景 */
.hero__canvas {
  position: fixed; inset: 0; z-index: -1;
  width: 100%; height: 100%;
  background: radial-gradient(120% 90% at 72% 8%, #0b1728 0%, #06090f 52%, #04060b 100%);
}
.hero__veil {
  position: absolute; inset: auto 0 0 0; height: 42%;
  background: linear-gradient(to bottom, transparent, rgba(4, 7, 13, .78) 62%, var(--ink));
  pointer-events: none;
}
.hero__inner { position: relative; width: min(100%, 1010px); margin-inline: auto; }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px 7px 12px; margin-bottom: 30px;
  border: 1px solid var(--line); border-radius: 999px;
  background: rgba(4, 7, 13, .5); backdrop-filter: blur(10px);
  font-size: 12.5px; letter-spacing: .14em; color: var(--text-2);
}
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--aqua); position: relative; }
.pulse::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--aqua); animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0%   { transform: scale(.5); opacity: 1; }
  100% { transform: scale(2.1); opacity: 0; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(52px, 9.4vw, 132px);
  line-height: 1.12; letter-spacing: .04em; font-weight: 300;
  /* 阵风经过时, 整块标题被轻轻推一下 */
  transform: translate3d(calc(var(--gust) * 7px), 0, 0);
  will-change: transform;
}
.hero__line { display: block; }
/* 渐变必须落在每个字自己身上: .char 带 filter 会切断父级的 background-clip:text。
   JS 量出每字的横向偏移, 拼回一条横跨整行的连续色带。 */
.hero__line--accent .char {
  background-image: var(--grad-wind);
  background-size: var(--bw, 100%) 100%;
  background-position: var(--bx, 0px) 0;
  background-repeat: no-repeat;
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}

/* 逐字"吹入" (仅 JS 拆分出的 .char 参与, 无 JS 时标题原样可见) */
.char {
  display: inline-block; white-space: pre;
  opacity: 0; transform: translate3d(.7em, -.16em, 0) rotate(7deg) scale(1.06);
  filter: blur(12px);
}
.is-ready .char {
  animation: blowIn 1.15s var(--ease-wind) forwards;
  animation-delay: calc(var(--i) * 48ms);
}
@keyframes blowIn {
  60%  { filter: blur(0); }
  100% { opacity: 1; transform: none; filter: blur(0); }
}

.hero__lede {
  max-width: 44em; margin-top: 30px;
  font-size: clamp(15px, 1.15vw, 17.5px); color: var(--text-2);
}
.hero__lede strong { color: var(--aqua); font-weight: 600; }

/* 入场淡入(标题之后; 由 JS 加 .js 后才隐藏, 无 JS 时可见) */
.js [data-fade] { opacity: 0; transform: translateY(20px); filter: blur(5px); }
.is-ready [data-fade] {
  animation: fadeUp 1.1s var(--ease-out) forwards;
  animation-delay: calc(900ms + var(--fd, 0) * 160ms);
}
@keyframes fadeUp { to { opacity: 1; transform: none; filter: blur(0); } }

/* ---------- 滚动提示 ---------- */
.hero__scroll {
  position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .32em; color: var(--text-3);
}
.hero__scroll i {
  width: 1px; height: 46px; background: linear-gradient(var(--aqua), transparent);
  position: relative; overflow: hidden;
}
.hero__scroll i::after {
  content: ""; position: absolute; inset: 0; background: var(--aqua);
  animation: drop 2.1s var(--ease-wind) infinite;
}
@keyframes drop {
  0%   { transform: translateY(-100%); }
  60%, 100% { transform: translateY(100%); }
}

/* ============================================================
   信任条
   ============================================================ */
.stats {
  position: relative;
  padding: 92px 0 0;
  background: linear-gradient(to bottom, rgba(4, 7, 13, .5), rgba(4, 7, 13, .93));
}
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px;
  border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  background: var(--line);
}
.stat {
  padding: 34px 28px; background: rgba(6, 10, 18, .86);
  transition: background .45s var(--ease-out);
}
.stat:hover { background: rgba(12, 22, 34, .95); }
.stat__num {
  font-family: var(--font-mono); font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 500; letter-spacing: -.02em; font-variant-numeric: tabular-nums;
  background: var(--grad-wind); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.stat__unit { margin-left: 7px; font-size: 13px; color: var(--text-3); }
.stat__label { display: block; margin-top: 6px; font-size: 13.5px; color: var(--text-2); }
.stat__note { display: block; margin-top: 3px; font-size: 12px; color: var(--text-3); }

/* 风纹分隔 */
.ripple { margin-top: 58px; opacity: .65; }
.ripple svg { width: 100%; height: 108px; }
.ripple__line {
  fill: none; stroke: var(--aqua); stroke-width: 1.1;
  stroke-dasharray: 220 1400; stroke-dashoffset: 1620;
  animation: flow 9s linear infinite;
  opacity: .5;
}
.ripple__line--2 { stroke: var(--sky); animation-duration: 12s; animation-delay: -3s; opacity: .34; }
.ripple__line--3 { stroke: var(--violet); animation-duration: 15s; animation-delay: -7s; opacity: .28; }
@keyframes flow { to { stroke-dashoffset: 0; } }

/* ============================================================
   通用 section
   ============================================================ */
.section {
  position: relative;
  padding: clamp(88px, 11vw, 152px) 0;
  background: rgba(4, 7, 13, .93);
}
.section--dim { background: rgba(4, 7, 13, .82); }
.section__head { max-width: 820px; margin-bottom: 66px; }
.section__eyebrow {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .3em;
  color: var(--aqua); margin-bottom: 20px; text-transform: uppercase;
}
.section__title {
  font-family: var(--font-display); font-weight: 300;
  font-size: clamp(29px, 4vw, 52px); line-height: 1.28;
}
.section__title em {
  font-style: normal;
  background: var(--grad-wind); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.section__desc { margin-top: 22px; font-size: 16px; color: var(--text-2); max-width: 56ch; }

/* ---------- 卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; isolation: isolate; overflow: hidden;
  padding: 34px 30px 30px; border-radius: 22px;
  border: 1px solid var(--line); background: var(--panel);
  transition: transform .5s var(--ease-out), border-color .5s, background .5s;
  transform-style: preserve-3d;
}
.card:hover { border-color: rgba(93, 228, 199, .4); background: var(--panel-2); }
.card__glow {
  position: absolute; inset: -1px; z-index: -1; opacity: 0;
  transition: opacity .5s var(--ease-out);
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%),
              rgba(93, 228, 199, .18), transparent 66%);
}
.card:hover .card__glow { opacity: 1; }
/* 序号与图标容器同起点、等高行高 —— 两者视觉居中对齐 */
.card__index {
  position: absolute; top: 34px; right: 30px; line-height: 48px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-3); letter-spacing: .1em;
}
.card__icon {
  width: 48px; height: 48px; margin-bottom: 22px; color: var(--aqua);
  display: grid; place-items: center; border-radius: 14px;
  border: 1px solid rgba(93, 228, 199, .26); background: rgba(93, 228, 199, .07);
  transition: transform .6s var(--ease-wind), box-shadow .5s;
}
.card__icon svg { width: 25px; height: 25px; }
.card:hover .card__icon {
  transform: translateY(-3px) rotate(-6deg);
  box-shadow: 0 12px 30px -14px rgba(93, 228, 199, .8);
}
.card__title {
  font-family: var(--font-display); font-size: 24px; letter-spacing: .06em; margin-bottom: 12px;
}
.card__text { font-size: 14.6px; color: var(--text-2); }

/* ---------- 店铺模式 ---------- */
.modes {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  border-top: 1px solid var(--line);
}
.modes__item {
  position: relative; padding: 44px 30px 10px 0;
}
.modes__item::before {
  content: ""; position: absolute; top: -5px; left: 0;
  width: 9px; height: 9px; border-radius: 50%; background: var(--text-3);
  transition: background .4s, box-shadow .4s, transform .4s var(--ease-out);
}
.modes__item:hover::before {
  background: var(--aqua); transform: scale(1.5);
  box-shadow: 0 0 18px 2px rgba(93, 228, 199, .8);
}
/* 沿分栏线掠过的一道风 */
.modes__item::after {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: var(--grad-wind); transform: scaleX(0); transform-origin: left;
  transition: transform .7s var(--ease-out);
}
.modes__item:hover::after { transform: scaleX(1); }
.modes__tag {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .22em; color: var(--aqua);
}
.modes__item h3 {
  margin: 14px 0 12px; font-family: var(--font-display);
  font-size: 23px; letter-spacing: .06em;
}
.modes__item p { font-size: 14px; color: var(--text-2); max-width: 34ch; }

/* ---------- 关于我们 ---------- */
.about__grid {
  display: grid; grid-template-columns: 1fr .92fr; gap: clamp(40px, 6vw, 92px); align-items: center;
}
.about__copy .section__desc + .section__desc { margin-top: 14px; }
.about__daily {
  padding: 34px 38px 20px; border-radius: 22px;
  border: 1px solid var(--line); background: var(--panel);
}
.about__daily-tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .26em;
  color: var(--aqua); margin-bottom: 14px; text-transform: uppercase;
}
.about__daily li {
  position: relative; padding: 16px 0 16px 32px;
  font-family: var(--font-display); font-size: clamp(18px, 1.7vw, 23px);
  letter-spacing: .08em;
}
.about__daily li + li { border-top: 1px solid var(--line); }
.about__daily li::before {
  content: ""; position: absolute; left: 0; top: 50%; margin-top: -1px;
  width: 16px; height: 2px; border-radius: 2px; background: var(--grad-wind);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background:
    radial-gradient(70% 130% at 50% 0%, rgba(93, 228, 199, .08), transparent 60%),
    #030509;
  border-top: 1px solid var(--line);
  padding: 74px 0 30px;
}
.footer__inner {
  display: grid; grid-template-columns: 1.3fr 2fr; gap: 54px; padding-bottom: 48px;
}
.footer__brand { display: grid; gap: 12px; align-content: start; }
.footer__brand .nav__mark { width: 34px; height: 34px; }
.footer__brand span { font-family: var(--font-display); font-size: 19px; letter-spacing: .1em; }
.footer__brand p { font-size: 13.5px; color: var(--text-3); }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.footer__cols h4 {
  font-size: 12px; letter-spacing: .24em; color: var(--text-3);
  margin-bottom: 16px; text-transform: uppercase; font-weight: 400;
}
.footer__cols a {
  display: block; padding: 6px 0; font-size: 14px; color: var(--text-2);
  transition: color .3s, transform .4s var(--ease-out);
}
.footer__cols a:hover { color: var(--aqua); transform: translateX(6px); }
.footer__base {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding-top: 24px; padding-bottom: 4px;
  font-size: 12.5px; color: var(--text-3);
}
.footer__inner + .footer__base { border-top: 1px solid var(--line); }
.footer--slim { padding: 34px 0 26px; }
.footer--slim .footer__base { padding-top: 0; }
.footer__base a { color: var(--text-3); }
.footer__base a:hover { color: var(--text-2); }

/* ============================================================
   法律页 (privacy / terms)
   ============================================================ */
.legal {
  max-width: 820px; margin-inline: auto;
  padding: 150px 24px 110px;
}
.legal h1 { font-family: var(--font-display); font-weight: 300; font-size: clamp(32px, 4.4vw, 46px); margin-bottom: 14px; }
.legal-meta {
  font-size: 13.5px; color: var(--text-3);
  padding-bottom: 28px; margin-bottom: 44px; border-bottom: 1px solid var(--line);
}
.legal h2 {
  font-family: var(--font-display); font-size: 23px; font-weight: 400;
  margin: 48px 0 16px;
}
.legal h3 { font-size: 16px; font-weight: 600; margin: 28px 0 10px; color: var(--text); }
.legal p, .legal li { font-size: 15px; color: var(--text-2); line-height: 1.9; margin-bottom: 12px; }
.legal ul, .legal ol { padding-left: 1.5em; margin-bottom: 16px; }
.legal ul { list-style: disc; }
.legal li { margin-bottom: 8px; }
.legal strong { color: var(--text); }
.legal a { color: var(--aqua); text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(93, 228, 199, .4); }
.legal-note {
  border: 1px solid rgba(93, 228, 199, .3); border-radius: 16px;
  background: rgba(93, 228, 199, .06);
  padding: 18px 22px; margin: 22px 0 30px;
}
.legal-note p { margin-bottom: 0; font-size: 14px; }

/* ============================================================
   滚动揭示 (由 JS 加 .js 后才隐藏, 无 JS 时全部可见)
   ============================================================ */
.js [data-reveal] {
  opacity: 0; transform: translateY(30px); filter: blur(6px);
  transition: opacity .95s var(--ease-out), transform .95s var(--ease-out), filter .95s var(--ease-out);
  transition-delay: var(--d, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; filter: blur(0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1040px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .modes { grid-template-columns: 1fr; }
  .modes__item { padding: 30px 0 12px 22px; border-left: 1px solid var(--line); }
  .modes__item::after { display: none; }
  .modes__item::before { top: 34px; left: -5px; }
  .about__grid { grid-template-columns: 1fr; }
  .about__daily { max-width: 520px; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav { gap: 18px; }
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    padding: 10px 0 18px;
    background: rgba(4, 7, 13, .96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a { padding: 13px clamp(20px, 4vw, 52px); font-size: 15.5px; }
  .nav__links a::after { display: none; }
  .nav__links-cta { display: block; color: var(--aqua); }

  .hero { padding-top: 118px; min-height: 92svh; }
  .hero__scroll { display: none; }
  .watermark { display: none; }
  .br-wide { display: none; }
  .cards, .footer__inner { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: 1fr 1fr; }
  .stat { padding: 24px 20px; }
  .legal { padding-top: 120px; }
}
@media (max-width: 480px) {
  .stats__grid { grid-template-columns: 1fr; }
}

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