/* ==========================================================================
   B体育官网 · /assets/site.css
   共享层：reset / 变量 / 中文排版 / 框架头部 / 页脚 / 通用组件
   设计母题：城市主场坐标 —— 刻度、切角、等宽数字、单一绿色锚点
   ========================================================================== */

:root{
  /* 色板 */
  --ink:#07090C;
  --panel:#10151C;
  --line:#24303D;
  --steel:#7E93A8;
  --paper:#F2F5F7;
  --green:#35F08A;
  --green-deep:#1BAE62;
  --orange:#FF6A2A;
  --blue:#5FB6FF;
  --amber:#FFC857;

  /* 字体 */
  --font-display:'Archivo Black','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono','SFMono-Regular',ui-monospace,monospace;

  /* 节奏与尺度 */
  --pad-x:clamp(20px,4vw,64px);
  --header-h:78px;
  --container:1320px;
  --ease:cubic-bezier(.22,1,.36,1);
  --cut:16px;
  --progress:0;
}

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scrollbar-color:var(--line) var(--ink);
}

body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

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

a{color:inherit;}

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

h1,
h2,
h3,
h4,
h5{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.05;
  letter-spacing:.04em;
  color:var(--paper);
}

p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}

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

strong{color:var(--paper);font-weight:700;}

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

/* ---------- 焦点 ---------- */
:focus-visible{
  outline:2px solid var(--green);
  outline-offset:2px;
  box-shadow:0 0 0 2px var(--ink);
}

/* ==========================================================================
   框架头部
   ========================================================================== */
.frame-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--ink);
  border-bottom:1px solid var(--line);
  isolation:isolate;
}

.frame-header__bar{
  position:relative;
  z-index:2;
  background:var(--ink);
}

.frame-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  min-height:var(--header-h);
  padding:0 var(--pad-x);
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--paper);
}

.brand__mark{
  position:relative;
  display:block;
  flex:0 0 auto;
  width:20px;
  height:30px;
  border-left:4px solid var(--green);
  border-top:2px solid var(--orange);
  border-bottom:1px solid var(--line);
}

.brand__mark::after{
  content:"";
  position:absolute;
  left:6px;
  top:7px;
  width:9px;
  height:1px;
  background:var(--line);
  box-shadow:0 6px 0 var(--line),0 12px 0 var(--line);
}

.brand__text{
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:0;
}

.brand__line{
  font-family:var(--font-display);
  font-size:16px;
  line-height:1;
  letter-spacing:.12em;
  color:var(--paper);
  white-space:nowrap;
}

.brand__descriptor{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1;
  letter-spacing:.2em;
  color:var(--steel);
  white-space:nowrap;
}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:11px 14px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}

.nav-toggle:hover{border-color:var(--green);color:var(--green);}

.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;
  height:12px;
  flex:0 0 auto;
}

.nav-toggle__bars span{
  position:absolute;
  left:0;
  right:0;
  height:2px;
  background:var(--green);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}

.nav-toggle__bars span:first-child{top:0;}
.nav-toggle__bars span:last-child{bottom:0;}

.frame-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(5px) rotate(45deg);}
.frame-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-5px) rotate(-45deg);}

.nav-toggle__label{white-space:nowrap;}

/* 导航 */
.frame-nav{
  margin-left:auto;
  min-width:0;
}

.frame-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,.9vw,10px);
}

.frame-nav__item{position:relative;}

.frame-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:10px 8px;
  text-decoration:none;
  color:var(--steel);
  font-family:var(--font-display);
  font-size:12.5px;
  letter-spacing:.1em;
  white-space:nowrap;
  transition:color .2s var(--ease);
}

.frame-nav__index{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.06em;
  color:rgba(126,147,168,.55);
  transition:color .2s var(--ease);
}

.frame-nav__link::after{
  content:"";
  position:absolute;
  left:8px;
  right:8px;
  bottom:2px;
  height:2px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .24s var(--ease),background .24s var(--ease);
}

.frame-nav__link:hover,
.frame-nav__link:focus-visible{color:var(--paper);}

.frame-nav__link:hover::after{transform:scaleX(1);}

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

.frame-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--green);
}

.frame-nav__link[aria-current="page"] .frame-nav__index{color:var(--green);}

/* 头部 CTA */
.header-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 18px;
  text-decoration:none;
  background:var(--green);
  color:var(--ink);
  font-family:var(--font-display);
  font-size:12px;
  line-height:1;
  letter-spacing:.1em;
  white-space:nowrap;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}

.header-cta:hover,
.header-cta:focus-visible{
  background:var(--green-deep);
  color:var(--paper);
  transform:translateY(-1px);
}

/* 刻度导轨 */
.frame-header__rail{
  display:flex;
  align-items:center;
  gap:18px;
  height:24px;
  padding:0 var(--pad-x);
  border-top:1px solid var(--line);
  background:linear-gradient(90deg,rgba(53,240,138,.08),rgba(7,9,12,0) 44%);
  overflow:hidden;
}

.frame-header__scale{
  flex:1 1 auto;
  min-width:0;
  height:7px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 12px);
  background-repeat:repeat-x;
  background-position:0 50%;
  background-size:auto 7px;
  opacity:.85;
}

.frame-header__note{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1;
  letter-spacing:.24em;
  color:var(--steel);
  text-transform:uppercase;
  white-space:nowrap;
}

/* 滚动进度 */
.scroll-progress{
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  transform:scaleX(var(--progress,0));
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--green),var(--blue) 62%,var(--orange));
  pointer-events:none;
}

/* 跳转链接 */
.skip-link{
  position:absolute;
  top:8px;
  left:var(--pad-x);
  z-index:200;
  padding:11px 20px;
  background:var(--green);
  color:var(--ink);
  font-family:var(--font-display);
  font-size:13px;
  line-height:1;
  letter-spacing:.08em;
  text-decoration:none;
  clip-path:polygon(0 0,100% 0,100% 100%,14px 100%,0 calc(100% - 14px));
  transform:translateY(-220%);
  transition:transform .18s var(--ease);
}

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

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,80px);
  background:var(--panel);
  border-top:1px solid var(--line);
  color:var(--steel);
}

.site-footer__rail{
  height:26px;
  border-bottom:1px solid var(--line);
  background-image:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 14px);
  background-repeat:repeat-x;
  background-position:0 50%;
  background-size:auto 8px;
  opacity:.9;
}

.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(28px,5vw,64px);
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:clamp(36px,6vw,72px) var(--pad-x) clamp(24px,4vw,40px);
}

.footer-brand{max-width:38ch;}

.brand--footer{color:var(--paper);}

.footer-tagline{
  margin-top:20px;
  font-family:var(--font-display);
  font-size:clamp(17px,2.1vw,23px);
  line-height:1.4;
  letter-spacing:.02em;
  color:var(--paper);
  text-wrap:balance;
}

.footer-note{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--steel);
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(170px,1fr));
  gap:clamp(22px,4vw,48px);
  align-content:start;
}

.footer-col__title{
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.22em;
  color:var(--steel);
  text-transform:uppercase;
}

.footer-links{display:grid;gap:2px;}

.footer-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:7px 0;
  text-decoration:none;
  color:var(--paper);
  font-size:15px;
  line-height:1.6;
  transition:color .2s var(--ease);
}

.footer-link::before{
  content:"";
  flex:0 0 auto;
  width:8px;
  height:1px;
  background:var(--line);
  transition:width .2s var(--ease),background .2s var(--ease);
}

.footer-link:hover{color:var(--green);}
.footer-link:hover::before{width:20px;background:var(--green);}

/* 服务台 */
.footer-contact{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:clamp(14px,2.4vw,22px);
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:clamp(22px,3.6vw,36px) var(--pad-x) clamp(26px,4vw,42px);
  border-top:1px solid var(--line);
}

.footer-contact__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.22em;
  color:var(--steel);
  text-transform:uppercase;
}

.footer-contact__list{display:grid;gap:0;}

.footer-contact__row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 12px;
  padding:10px 0;
  border-bottom:1px dashed rgba(36,48,61,.85);
}

.footer-contact__label{
  flex:0 0 auto;
  min-width:44px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--steel);
}

.footer-contact__value{
  flex:1 1 auto;
  min-width:0;
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.01em;
  color:var(--paper);
  word-break:break-word;
}

.copy-btn{
  flex:0 0 auto;
  padding:6px 12px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--steel);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  line-height:1.4;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}

.copy-btn:hover,
.copy-btn:focus-visible{color:var(--green);border-color:var(--green);}

.copy-btn[data-copied]{
  background:var(--green);
  border-color:var(--green);
  color:var(--ink);
}

/* 页脚元信息 */
.footer-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:18px var(--pad-x) clamp(22px,3.4vw,34px);
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--steel);
}

.footer-meta__copy{color:var(--steel);}

.footer-meta__icp{color:var(--paper);}

.footer-meta__sep{
  display:block;
  width:1px;
  height:12px;
  background:var(--line);
}

.footer-meta__note{color:var(--steel);}

/* ==========================================================================
   通用布局
   ========================================================================== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-inline:var(--pad-x);
}

.band{padding-block:clamp(48px,8vw,112px);}

.prose{
  max-width:72ch;
  font-size:17px;
  line-height:1.9;
  color:var(--paper);
}

.prose p + p{margin-top:1.05em;}

.prose h2,
.prose h3{
  margin:1.6em 0 .6em;
  font-size:clamp(20px,2.4vw,28px);
  letter-spacing:.03em;
}

.prose ul{
  margin:0 0 1.1em;
  padding-left:1.15em;
  list-style:disc;
}

.prose li{margin-bottom:.4em;}

.prose a{
  color:var(--green);
  text-decoration:underline;
  text-underline-offset:3px;
}

/* 网格 */
.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}

.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}
.col-12{grid-column:span 12;}

/* ---------- 章节标题 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  line-height:1.4;
  color:var(--steel);
  text-transform:uppercase;
}

.eyebrow::before{
  content:"";
  flex:0 0 auto;
  width:24px;
  height:1px;
  background:var(--green);
}

.section-head{
  display:flex;
  align-items:flex-start;
  gap:clamp(14px,2.4vw,34px);
  margin-bottom:clamp(24px,4vw,48px);
  padding-top:clamp(16px,2.4vw,26px);
  border-top:1px solid var(--line);
}

.section-index{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:clamp(24px,3.4vw,40px);
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  color:var(--green);
  font-variant-numeric:tabular-nums;
}

.section-head__body{
  flex:1 1 auto;
  min-width:0;
}

.section-title{
  margin-top:10px;
  font-family:var(--font-display);
  font-size:clamp(24px,3.8vw,50px);
  line-height:1.04;
  letter-spacing:.03em;
  color:var(--paper);
  text-wrap:balance;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:14px 24px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--paper);
  font-family:var(--font-display);
  font-size:13px;
  line-height:1;
  letter-spacing:.1em;
  text-decoration:none;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}

.btn:focus-visible{
  outline:none;
  box-shadow:inset 0 0 0 2px var(--green),inset 0 0 0 4px var(--ink);
}

.btn:hover{transform:translateY(-2px);}

.btn--primary{
  background:var(--green);
  border-color:var(--green);
  color:var(--ink);
}

.btn--primary:hover{
  background:var(--green-deep);
  border-color:var(--green-deep);
  color:var(--paper);
}

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

.btn--ghost:hover{
  border-color:var(--green);
  color:var(--green);
}

.btn--orange{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink);
}

.btn--orange:hover{
  background:#E2551C;
  border-color:#E2551C;
  color:var(--paper);
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.5;
  letter-spacing:.14em;
  color:var(--steel);
  white-space:nowrap;
}

.tag--green{color:var(--green);border-color:rgba(53,240,138,.42);background:rgba(53,240,138,.09);}
.tag--orange{color:var(--orange);border-color:rgba(255,106,42,.42);background:rgba(255,106,42,.09);}
.tag--blue{color:var(--blue);border-color:rgba(95,182,255,.42);background:rgba(95,182,255,.09);}
.tag--amber{color:var(--amber);border-color:rgba(255,200,87,.42);background:rgba(255,200,87,.09);}

/* ---------- 切角面板 ---------- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:clamp(20px,3vw,34px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}

.panel--raised:hover,
.panel--raised:focus-within{
  transform:translateY(-2px);
  border-color:rgba(53,240,138,.5);
  background:#121822;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  padding-block:18px;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--steel);
}

.breadcrumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}

.breadcrumbs__item{
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.breadcrumbs__link{
  color:var(--steel);
  text-decoration:none;
  transition:color .2s var(--ease);
}

.breadcrumbs__link:hover{color:var(--green);}

.breadcrumbs__sep{color:var(--line);}

.breadcrumbs__current{color:var(--paper);}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  aspect-ratio:16/9;
  clip-path:polygon(0 0,calc(100% - 30px) 0,100% 30px,100% 100%,0 100%);
}

.media-frame__img,
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.9) contrast(1.06) brightness(.92);
}

.media-frame__placeholder{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  padding:18px;
  text-align:center;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  color:rgba(126,147,168,.72);
  background-image:
    repeating-linear-gradient(135deg,rgba(126,147,168,.09) 0 1px,transparent 1px 12px),
    repeating-linear-gradient(0deg,rgba(36,48,61,.55) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(90deg,rgba(36,48,61,.55) 0 1px,transparent 1px 48px),
    linear-gradient(160deg,#10151C,#07090C 72%);
}

.media-frame__caption{
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  line-height:1.7;
  color:var(--steel);
}

.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:4/5;}
.media-frame--square{aspect-ratio:1/1;}

/* ---------- 显现 ---------- */
.reveal{
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}

html[data-reveal="on"] .reveal:not(.is-visible){
  opacity:0;
  transform:translateY(14px);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (min-width:1081px) and (max-width:1320px){
  .brand__descriptor{display:none;}
  .frame-nav__link{font-size:12px;padding:10px 6px;}
  .frame-nav__link::after{left:6px;right:6px;}
}

@media (max-width:1080px){
  .nav-toggle{display:inline-flex;}

  .frame-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 28px 56px rgba(0,0,0,.62);
    transition:max-height .3s var(--ease),visibility .3s var(--ease);
  }

  .frame-header[data-open] .frame-nav{
    max-height:min(76vh,620px);
    overflow-y:auto;
    visibility:visible;
  }

  .frame-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:6px var(--pad-x) 18px;
  }

  .frame-nav__item + .frame-nav__item{border-top:1px solid rgba(36,48,61,.72);}

  .frame-nav__link{
    width:100%;
    padding:16px 4px;
    font-size:14px;
    letter-spacing:.14em;
  }

  .frame-nav__link::after{left:4px;right:4px;bottom:9px;}

  .header-cta{margin-left:0;}

  .grid{grid-template-columns:repeat(4,minmax(0,1fr));}

  .col-4,
  .col-5,
  .col-6,
  .col-7,
  .col-8,
  .col-12{grid-column:span 4;}

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

@media (min-width:840px){
  .footer-contact{
    grid-template-columns:200px minmax(0,1fr);
    align-items:start;
  }

  .footer-contact__list{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    column-gap:clamp(20px,3vw,44px);
  }
}

@media (min-width:900px){
  .site-footer__inner{
    grid-template-columns:minmax(220px,.9fr) minmax(0,1.6fr);
  }
}

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

  body{font-size:16px;line-height:1.8;}

  .frame-header__inner{gap:10px;}

  .brand{gap:11px;}

  .brand__mark{height:26px;}

  .brand__line{font-size:14px;letter-spacing:.1em;}

  .brand__descriptor{display:none;}

  .header-cta{display:none;}

  .nav-toggle{padding:9px 11px;}

  .frame-header__rail{height:18px;gap:12px;}

  .frame-header__note{display:none;}

  .footer-meta{font-size:11px;gap:6px 12px;}

  .footer-meta__note{width:100%;}

  .panel{padding:18px;}

  .btn{padding:13px 18px;font-size:12px;}
}

/* ==========================================================================
   动效降级
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }

  html[data-reveal="on"] .reveal:not(.is-visible),
  .reveal{
    opacity:1;
    transform:none;
  }

  .btn:hover,
  .panel--raised:hover,
  .panel--raised:focus-within,
  .header-cta:hover{transform:none;}

  .scroll-progress{transition:none;}
}