/* =========================================================
   幻影体育 · 共享样式表 /assets/site.css
   深空黑底 + 电光紫结构 + 荧光青数据线 + 暖橙赛果高亮
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-900:#06070E;
  --ink-800:#0E1220;
  --ink-700:#141A2C;
  --ink-600:#1B2338;
  --line:#2A3346;

  --text:#E8ECF5;
  --text-dim:#94A0BA;
  --text-mute:#6B7794;

  --purple:#7C4DFF;
  --purple-lt:#A98BFF;
  --purple-dk:#3A2486;
  --cyan:#38F2E0;
  --orange:#FF9A3C;
  --green:#46E39B;

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

  --wrap:1280px;
  --gutter:clamp(16px,4vw,32px);
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;

  --shadow-float:0 18px 48px -22px rgba(58,36,134,.85);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;}
ul[class],ol[class]{list-style:none;}
img,svg{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
a{color:var(--purple-lt);text-decoration:none;}
a:hover{color:var(--cyan);}
table{border-collapse:collapse;}
[hidden]{display:none !important;}

/* ---------- 3. 基础版式 ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1100px 520px at 12% -6%, rgba(124,77,255,.20), transparent 62%),
    radial-gradient(900px 460px at 92% 2%, rgba(56,242,224,.09), transparent 60%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-0.01em;
  color:var(--text);
  text-wrap:balance;
}
h1{font-size:clamp(38px,7vw,86px);letter-spacing:-0.025em;}
h2{font-size:clamp(24px,3.2vw,40px);}
h3{font-size:clamp(19px,2vw,24px);}
p{text-align:left;}

code,kbd,samp,pre,.mono{font-family:var(--font-mono);}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 4. 布局工具 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  overflow:hidden;white-space:nowrap;
}
.prose{max-width:68ch;}
.prose p + p{margin-top:12px;}
.prose ul,.prose ol{margin:12px 0;padding-left:18px;font-size:14px;line-height:1.65;}

.rule{
  height:1px;
  background:linear-gradient(90deg,rgba(56,242,224,.5),rgba(42,51,70,.8) 45%,rgba(42,51,70,0));
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:-100px;
  left:16px;
  z-index:200;
  padding:12px 20px;
  border-radius:var(--r-pill);
  background:var(--purple);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:top .2s ease;
}
.skip-link:focus{top:16px;color:#fff;}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,7,14,.78);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid rgba(42,51,70,.55);
  transition:background .28s ease,border-color .28s ease;
}
.site-header.is-condensed{
  background:rgba(8,10,20,.94);
  border-bottom-color:rgba(124,77,255,.42);
}
.site-header__shell{position:relative;}

.scanline{
  position:absolute;
  inset:0;
  overflow:hidden;
  pointer-events:none;
  z-index:-1;
}
.scanline::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(56,242,224,.55),transparent);
  animation:scanY 8s linear infinite;
}
@keyframes scanY{
  0%{transform:translateY(4px);opacity:0;}
  12%{opacity:.85;}
  88%{opacity:.85;}
  100%{transform:translateY(148px);opacity:0;}
}

.progress-rail{
  position:absolute;
  left:0;right:0;top:0;
  height:2px;
  pointer-events:none;
  z-index:3;
}
.progress-rail__fill{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--purple),var(--cyan));
  box-shadow:0 0 12px rgba(56,242,224,.6);
}

.site-header__inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:68px;
  padding-block:10px;
  transition:min-height .28s ease,padding .28s ease;
}
.site-header.is-condensed .site-header__inner{
  min-height:58px;
  padding-block:6px;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand__mark{
  position:relative;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--purple) 0%,var(--purple-dk) 58%,#1B1147 100%);
  border:1px solid rgba(169,139,255,.5);
  overflow:hidden;
  transition:box-shadow .28s ease;
}
.brand__mark::before{
  content:"";
  width:14px;height:2px;
  border-radius:2px;
  background:var(--cyan);
  box-shadow:0 5px 0 rgba(232,236,245,.65),0 -5px 0 rgba(255,154,60,.9);
}
.site-header.is-condensed .brand__mark{
  box-shadow:0 0 0 3px rgba(124,77,255,.18),0 0 18px rgba(56,242,224,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:17px;font-weight:700;letter-spacing:.01em;}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--text-mute);
}

/* 悬浮胶囊导航 */
.capsule-nav{
  display:flex;
  align-items:center;
  margin-inline:auto;
  padding:5px;
  border-radius:var(--r-pill);
  background:rgba(14,18,32,.72);
  border:1px solid rgba(42,51,70,.9);
  transition:border-color .28s ease,background .28s ease,box-shadow .28s ease;
}
.site-header.is-condensed .capsule-nav{
  background:rgba(14,18,32,.94);
  border-color:rgba(124,77,255,.45);
  box-shadow:var(--shadow-float);
}
.capsule-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-link{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:13.5px;
  font-weight:500;
  color:var(--text-dim);
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(124,77,255,.18);
}
.nav-link[aria-current="page"]{
  color:#fff;
  background:linear-gradient(135deg,var(--purple),var(--purple-dk));
  box-shadow:inset 0 0 0 1px rgba(169,139,255,.55);
}
.capsule-nav__foot{display:none;}

/* 头部动作区 */
.site-header__actions{
  display:flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  margin-left:auto;
}
.rail-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(56,242,224,.42);
  background:rgba(56,242,224,.08);
  color:var(--text);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.rail-toggle:hover{
  background:rgba(56,242,224,.16);
  border-color:rgba(56,242,224,.8);
}
.rail-toggle[aria-expanded="true"]{
  background:rgba(124,77,255,.24);
  border-color:rgba(169,139,255,.8);
}
.rail-toggle__dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(56,242,224,.9);
  animation:pulseDot 1.8s ease-in-out infinite;
}
@keyframes pulseDot{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.78);}
}
.rail-toggle__label{white-space:nowrap;}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(42,51,70,.95);
  background:rgba(14,18,32,.8);
  cursor:pointer;
  transition:border-color .22s ease,background .22s ease;
}
.nav-toggle:hover{border-color:rgba(124,77,255,.7);}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  display:block;
  width:18px;height:1.5px;
  border-radius:2px;
  background:var(--text);
  transition:transform .26s ease,opacity .2s ease,background .26s ease;
}
.nav-toggle__bars{position:relative;}
.nav-toggle__bars::before{content:"";position:absolute;left:0;top:-6px;}
.nav-toggle__bars::after{content:"";position:absolute;left:0;top:6px;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg);background:var(--cyan);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg);background:var(--cyan);}

/* 顶部服务入口面板 */
.service-rail{
  overflow:hidden;
  max-height:0;
  visibility:hidden;
  opacity:0;
  border-top:1px solid transparent;
  transition:max-height .34s cubic-bezier(.22,.8,.3,1),opacity .24s ease,visibility .34s ease;
}
.service-rail.is-open{
  max-height:400px;
  visibility:visible;
  opacity:1;
  border-top-color:rgba(42,51,70,.8);
  background:linear-gradient(180deg,rgba(14,18,32,.96),rgba(10,13,26,.96));
}
.service-rail__inner{padding-block:18px 20px;}
.service-rail__title{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--cyan);
  margin-bottom:12px;
}
.service-rail__list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.service-chip{
  display:inline-block;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(42,51,70,.95);
  background:rgba(20,26,44,.75);
  color:var(--text-dim);
  font-size:13px;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.service-chip:hover{
  color:var(--text);
  border-color:rgba(56,242,224,.7);
  background:rgba(56,242,224,.1);
  transform:translateY(-1px);
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:80px;
  background:linear-gradient(180deg,#0B0E1B 0%,#080A14 100%);
  border-top:1px solid rgba(42,51,70,.85);
  color:var(--text-dim);
  font-size:14px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(124,77,255,.75) 22%,rgba(56,242,224,.65) 62%,transparent);
}
.site-footer__grid{
  display:grid;
  grid-template-columns:1.7fr repeat(4,minmax(0,1fr));
  gap:40px 32px;
  padding:56px 0 40px;
}
.site-footer__brand{display:flex;flex-direction:column;gap:14px;}
.brand--stack{align-items:flex-start;}
.site-footer__pitch{
  max-width:34ch;
  font-size:13.5px;
  line-height:1.7;
  color:var(--text-mute);
}
.foot-col__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--purple-lt);
  margin-bottom:14px;
}
.foot-links{display:flex;flex-direction:column;gap:9px;}
.foot-links a{
  color:var(--text-dim);
  font-size:13.5px;
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.foot-links a:hover{
  color:var(--cyan);
  transform:translateX(3px);
}
.site-footer__bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px 28px;
  align-items:baseline;
  justify-content:space-between;
  padding:22px 0 36px;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.8;
  color:var(--text-mute);
}
.foot-legal{color:var(--text-dim);}
.foot-contact{color:var(--text-dim);}
.foot-note{flex-basis:100%;max-width:78ch;}

/* ---------- 8. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:14px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--purple),var(--purple-dk));
  color:#fff;
  box-shadow:0 10px 30px -14px rgba(124,77,255,.95);
}
.btn--primary:hover{
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 14px 34px -14px rgba(124,77,255,1);
}
.btn--ghost{
  background:transparent;
  border-color:rgba(56,242,224,.5);
  color:var(--cyan);
}
.btn--ghost:hover{
  background:rgba(56,242,224,.12);
  color:var(--cyan);
}
.btn--block{display:flex;width:100%;}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{padding-block:20px;}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--text-mute);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  color:rgba(124,77,255,.7);
}
.breadcrumb__item a{color:var(--text-dim);}
.breadcrumb__item a:hover{color:var(--cyan);}
.breadcrumb__item[aria-current="page"]{color:var(--text);}

/* ---------- 10. 章节骨架 ---------- */
.section{padding-block:48px;}
.section + .section{padding-top:32px;}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:14px 20px;
  margin-bottom:28px;
}
.section__num{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--purple-lt);
  padding:4px 10px;
  border:1px solid rgba(124,77,255,.45);
  border-radius:var(--r-pill);
}
.section__title{font-size:clamp(22px,2.6vw,34px);}
.section__lede{
  flex-basis:100%;
  max-width:62ch;
  font-size:14px;
  color:var(--text-dim);
}

/* ---------- 11. 栅格 ---------- */
.grid{display:grid;gap:20px;}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--split{grid-template-columns:7fr 5fr;}

/* ---------- 12. 卡片 / 面板 ---------- */
.card{
  position:relative;
  padding:22px;
  border-radius:var(--r-lg);
  background:rgba(14,18,32,.85);
  border:1px solid rgba(42,51,70,.9);
  transition:border-color .24s ease,background .24s ease,transform .24s ease;
}
.card:hover{
  border-color:rgba(124,77,255,.55);
  background:rgba(20,26,44,.92);
  transform:translateY(-2px);
}
.panel{
  border-radius:var(--r-lg);
  background:rgba(14,18,32,.82);
  border:1px solid rgba(42,51,70,.9);
  overflow:hidden;
}
.panel__title{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--cyan);
  padding:14px 20px;
  border-bottom:1px solid rgba(42,51,70,.8);
  background:rgba(20,26,44,.6);
}

/* ---------- 13. 数据指标 ---------- */
.stat{
  padding:18px 20px;
  border-radius:var(--r-md);
  background:rgba(20,26,44,.6);
  border-left:2px solid var(--cyan);
}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(22px,3vw,32px);
  font-weight:600;
  color:var(--cyan);
  line-height:1.15;
}
.stat__label{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-mute);
  margin-top:4px;
}

/* ---------- 14. 状态标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  border:1px solid rgba(42,51,70,1);
  color:var(--text-dim);
  background:rgba(20,26,44,.7);
}
.tag--live{color:var(--orange);border-color:rgba(255,154,60,.55);background:rgba(255,154,60,.1);}
.tag--done{color:var(--green);border-color:rgba(70,227,155,.5);background:rgba(70,227,155,.09);}
.tag--purple{color:var(--purple-lt);border-color:rgba(124,77,255,.55);background:rgba(124,77,255,.12);}
.tag--cyan{color:var(--cyan);border-color:rgba(56,242,224,.5);background:rgba(56,242,224,.09);}

/* ---------- 15. 图例 / 坐标 ---------- */
.legend{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--text-mute);
}
.legend__item{display:inline-flex;align-items:center;gap:7px;}
.legend__swatch{
  width:9px;height:9px;
  border-radius:2px;
  background:var(--purple);
}
.legend__swatch--cyan{background:var(--cyan);}
.legend__swatch--orange{background:var(--orange);}
.legend__swatch--green{background:var(--green);}

.axis{position:relative;padding-left:22px;}
.axis::before{
  content:"";
  position:absolute;
  left:6px;top:8px;bottom:8px;
  width:1px;
  background:linear-gradient(180deg,rgba(56,242,224,.65),rgba(42,51,70,.25));
}
.axis__tick{position:relative;padding-block:6px;}
.axis__tick::before{
  content:"";
  position:absolute;
  left:-16px;top:15px;
  width:9px;height:1px;
  background:rgba(56,242,224,.6);
}

/* ---------- 16. 数据表 ---------- */
.ledger{
  width:100%;
  font-family:var(--font-mono);
  font-size:13px;
}
.ledger caption{
  text-align:left;
  font-size:11px;
  letter-spacing:.14em;
  color:var(--text-mute);
  padding-bottom:10px;
}
.ledger th,
.ledger td{
  padding:10px 12px;
  text-align:left;
  vertical-align:middle;
  border-bottom:1px solid rgba(42,51,70,.65);
}
.ledger th{
  font-size:11px;
  font-weight:500;
  letter-spacing:.1em;
  color:var(--text-mute);
  background:rgba(20,26,44,.55);
}
.ledger td{color:var(--text);}
.ledger tbody tr:hover td{background:rgba(124,77,255,.09);}

/* ---------- 17. 图片容器（页面阶段放占位图） ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 10;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(42,51,70,.9);
  background:
    radial-gradient(120% 90% at 18% 12%, rgba(124,77,255,.35), transparent 58%),
    radial-gradient(90% 80% at 88% 92%, rgba(56,242,224,.22), transparent 62%),
    linear-gradient(160deg,#10142A 0%,#0A0D1A 60%,#06070E 100%);
  isolation:isolate;
}
.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(232,236,245,.055) 0 1px,transparent 1px 4px);
  pointer-events:none;
}
.media-frame::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:42%;
  background:linear-gradient(180deg,transparent,rgba(6,7,14,.75));
  pointer-events:none;
}
.media-frame > img,
.media-frame > svg,
.media-frame > .media-frame__inner{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame--dash{aspect-ratio:16 / 6;}

/* ---------- 18. 滚动显现 ---------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease,transform .55s cubic-bezier(.22,.8,.3,1);
  will-change:opacity,transform;
}
.js [data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1080px){
  .site-footer__grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:32px 24px;
    padding-top:44px;
  }
  .site-footer__brand{grid-column:1 / -1;}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
}

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

@media (max-width:880px){
  .nav-toggle{display:inline-flex;}

  .capsule-nav{
    position:absolute;
    left:var(--gutter);
    right:var(--gutter);
    top:calc(100% + 10px);
    display:block;
    margin-inline:0;
    padding:10px;
    border-radius:20px;
    background:rgba(10,13,26,.98);
    border-color:rgba(124,77,255,.45);
    box-shadow:var(--shadow-float);
    max-height:0;
    visibility:hidden;
    opacity:0;
    overflow:hidden;
    transition:max-height .34s cubic-bezier(.22,.8,.3,1),opacity .24s ease,visibility .34s ease;
  }
  .capsule-nav[data-open]{
    max-height:76vh;
    visibility:visible;
    opacity:1;
    overflow-y:auto;
  }
  .capsule-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .nav-link{
    display:block;
    padding:13px 16px;
    border-radius:14px;
    font-size:15px;
  }
  .nav-link[aria-current="page"]{
    box-shadow:inset 0 0 0 1px rgba(169,139,255,.6);
  }
  .capsule-nav__foot{
    display:block;
    padding:12px 6px 4px;
    margin-top:8px;
    border-top:1px dashed rgba(42,51,70,.9);
  }
  .brand__tag{display:none;}
}

@media (max-width:640px){
  .site-footer__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:28px 20px;
    padding-top:36px;
  }
  .grid--2,.grid--3{grid-template-columns:1fr;}
  .section{padding-block:32px;}
  .section__head{margin-bottom:20px;}
  .site-footer__bar{flex-direction:column;align-items:flex-start;gap:6px;}
  .rail-toggle__label{display:none;}
  .rail-toggle{padding:10px 12px;}
}

@media (max-width:400px){
  .brand__name{font-size:15.5px;}
  .btn{padding:11px 18px;font-size:13.5px;}
}

/* ---------- 20. 减弱动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .scanline::after{animation:none;opacity:0;}
  .rail-toggle__dot{animation:none;}
  .js [data-reveal]{
    transform:none !important;
    transition:opacity .01ms linear !important;
    transition-delay:0ms !important;
  }
  .card:hover,.btn--primary:hover,.foot-links a:hover,.service-chip:hover{transform:none;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}