/* ===========================================================
   LEYU体育 共享样式 /assets/site.css
   心跳监测仪语汇：斜切、光轨、极细边界、克制微阴影
   =========================================================== */

:root{
  --ink:#10161A;
  --ink-2:#0B1013;
  --green:#0FA36B;
  --green-soft:#6FD3A8;
  --orange:#FF6A18;
  --amber:#FFB627;
  --wine:#7C2242;
  --indigo:#262A5C;
  --teal:#0A2E2A;
  --paper:#F4FBF7;
  --line:#CBD9D2;
  --text:#16201C;
  --muted:#5F706A;
  --line-dark:rgba(203,217,210,.18);
  --shadow:0 18px 40px -24px rgba(4,10,8,.8);
  --wrap:1240px;
  --gut:clamp(20px,4vw,56px);
  --tilt:-6deg;
  --tilt-label:-12deg;
  --ease:cubic-bezier(.22,.61,.36,1);
  --f-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --f-head:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --f-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --f-data:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--f-body);
  font-size:clamp(17px,1.25vw + 13px,18px);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--f-head);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;}
::selection{background:var(--orange);color:#10161A;}

/* ---------- 中文排版与通用文字 ---------- */
.mono,.data{
  font-family:var(--f-data);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
.tilt-6{transform:skewX(-6deg);}
.tilt-12{transform:skewX(-12deg);}
.untilt{transform:skewX(6deg);}
.lede{
  font-size:clamp(1rem,1.4vw,1.12rem);
  line-height:1.8;
  opacity:.82;
  max-width:62ch;
}
.prose{max-width:72ch;}
.prose h2{font-size:clamp(1.4rem,2.4vw,1.9rem);margin:1.6em 0 .6em;}
.prose h3{font-size:clamp(1.15rem,1.8vw,1.35rem);margin:1.4em 0 .5em;}
.prose ul{list-style:none;margin:0 0 1.2em;padding:0;}
.prose li{position:relative;padding-left:20px;margin-bottom:.55em;}
.prose li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:9px;height:2px;background:var(--green);transform:skewX(-12deg);
}
.section-title{
  font-family:var(--f-display);
  font-style:italic;
  font-weight:900;
  font-size:clamp(1.9rem,4.2vw,3.2rem);
  line-height:.98;
  letter-spacing:-.02em;
  transform:skewX(-6deg);
  margin-bottom:.5em;
}
.coord{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--f-data);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}
.coord-num{
  display:inline-block;
  padding:2px 9px;
  background:var(--green);
  color:var(--paper);
  font-weight:700;
  transform:skewX(-12deg);
}

/* ---------- 布局骨架 ---------- */
.wrap{
  width:100%;
  max-width:calc(var(--wrap) + 2 * var(--gut));
  margin-inline:auto;
  padding-inline:var(--gut);
}
.section{padding-block:clamp(64px,8.5vw,132px);position:relative;}
.section + .section{padding-top:0;}
.grid{display:grid;gap:clamp(20px,3vw,40px);}
.grid-7-5{grid-template-columns:7fr 5fr;}
.grid-8-4{grid-template-columns:8fr 4fr;}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2.2vw,28px);}
.divider{height:1px;border:0;background:var(--line);opacity:.6;margin:0;}
.panel--ink .divider,.panel--teal .divider,.panel--wine .divider,.panel--indigo .divider{background:var(--line-dark);opacity:1;}

/* ---------- 堆叠面板 ---------- */
.panel{
  position:relative;
  background:var(--paper);
  color:var(--text);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  padding:clamp(24px,3.4vw,48px);
}
.panel--ink{background:var(--ink-2);color:var(--paper);border-color:var(--line-dark);}
.panel--green{background:var(--green);color:var(--paper);border-color:transparent;}
.panel--teal{background:var(--teal);color:var(--paper);border-color:var(--line-dark);}
.panel--wine{background:var(--wine);color:var(--paper);border-color:transparent;}
.panel--indigo{background:var(--indigo);color:var(--paper);border-color:transparent;}
.panel--ink .kv,.panel--teal .kv,.panel--wine .kv,.panel--indigo .kv{border-color:var(--line-dark);}
.panel--ink .kv-key,.panel--teal .kv-key,.panel--wine .kv-key,.panel--indigo .kv-key{color:rgba(244,251,247,.62);}
.panel--ink .card-meta,.panel--teal .card-meta,.panel--wine .card-meta,.panel--indigo .card-meta{color:rgba(244,251,247,.6);}

.card{
  background:var(--paper);
  color:var(--text);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  padding:20px 22px;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.card:hover{transform:translateY(-3px);}
.card-title{font-size:1.05rem;font-weight:800;line-height:1.3;margin-bottom:6px;}
.card-meta{
  font-family:var(--f-data);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}

/* ---------- 数据与状态 ---------- */
.kv{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:14px;
  padding:10px 0;
  border-bottom:1px dashed var(--line);
}
.kv:last-child{border-bottom:0;}
.kv-key{font-size:14px;color:var(--muted);}
.kv-val{font-family:var(--f-data);font-variant-numeric:tabular-nums;font-weight:600;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border:1px solid currentColor;
  font-family:var(--f-data);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--amber);
  white-space:nowrap;
}
.badge-live{color:var(--orange);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--orange);flex:0 0 auto;}
.pulse .dot{animation:pulse 1.2s infinite;}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,106,24,.55);}
  50%{box-shadow:0 0 0 7px rgba(255,106,24,0);}
}
.rail{
  position:relative;
  height:2px;
  overflow:hidden;
  background:linear-gradient(90deg,transparent,var(--green) 22%,var(--orange) 58%,var(--amber) 84%,transparent);
}
.rail::after{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:28%;
  background:linear-gradient(90deg,transparent,rgba(244,251,247,.95),transparent);
  opacity:.35;
  animation:rail 9s linear infinite;
}
@keyframes rail{
  from{transform:translateX(-120%);}
  to{transform:translateX(460%);}
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line-dark);
  background:linear-gradient(135deg,var(--green) 0%,var(--teal) 58%,var(--indigo) 100%);
}
.media-frame > img,
.media-frame > svg,
.media-frame > video{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
}
.ratio-16-9{aspect-ratio:16 / 9;}
.ratio-4-3{aspect-ratio:4 / 3;}
.ratio-1-1{aspect-ratio:1 / 1;}

/* ---------- 面包屑与索引 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:16px;
  font-size:13px;
  color:var(--muted);
}
.crumbs li{display:flex;align-items:center;}
.crumbs li + li::before{content:"/";margin-right:8px;color:var(--line);}
.crumbs a:hover{color:var(--green);}

.index-rail{
  position:fixed;
  left:22px;
  top:50%;
  transform:translateY(-50%);
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.index-link{
  display:flex;
  align-items:center;
  gap:9px;
  font-family:var(--f-data);
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(244,251,247,.45);
  transition:color .2s var(--ease);
}
.index-link::before{
  content:"";
  width:16px;
  height:1px;
  background:currentColor;
  transition:width .2s var(--ease);
}
.index-link.is-active{color:var(--orange);}
.index-link.is-active::before{width:34px;}

/* ---------- 可展开内容组 ---------- */
.tablist{display:flex;flex-wrap:wrap;gap:8px;}
.tab{
  padding:8px 15px;
  border:1px solid var(--line);
  font-size:14px;
  font-weight:700;
  color:inherit;
  transform:skewX(-6deg);
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.tab[aria-selected="true"]{background:var(--green);border-color:var(--green);color:var(--paper);}
.panel--ink .tab,.panel--teal .tab,.panel--wine .tab,.panel--indigo .tab{border-color:var(--line-dark);}
.tabpanel[hidden]{display:none;}

/* ---------- 进入视口 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .26s var(--ease),transform .26s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ===========================================================
   头部
   =========================================================== */
.skip-link{
  position:absolute;
  left:clamp(20px,4vw,56px);
  top:-64px;
  z-index:90;
  padding:10px 18px;
  background:var(--orange);
  color:#10161A;
  font-weight:800;
  font-size:14px;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px;}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--teal);
  color:var(--paper);
  border-bottom:1px solid var(--line-dark);
}

.hdr-inner{
  width:100%;
  max-width:calc(var(--wrap) + 2 * var(--gut));
  margin-inline:auto;
  padding-inline:var(--gut);
}

/* 上层：品牌说明带 */
.hdr-top{
  background:#081C1A;
  max-height:140px;
  overflow:hidden;
  transition:max-height .26s var(--ease),opacity .2s var(--ease);
}
.hdr-top-inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(14px,2.4vw,36px);
  padding-block:10px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  display:grid;
  place-items:center;
  flex:0 0 auto;
  width:38px;height:38px;
  background:var(--green);
  color:var(--paper);
  font-family:var(--f-display);
  font-style:italic;
  font-weight:900;
  font-size:1.15rem;
  letter-spacing:.02em;
  transform:skewX(-6deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{font-size:15px;font-weight:800;letter-spacing:-.01em;color:var(--paper);}
.brand-tag{font-size:12px;letter-spacing:.08em;color:var(--green-soft);}
.hdr-status{
  margin:0;
  min-width:0;
  font-size:14px;
  line-height:1.4;
  color:var(--green-soft);
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
}
.hdr-meta{
  display:flex;
  gap:18px;
  margin:0;
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(244,251,247,.6);
  white-space:nowrap;
}
.hdr-meta-item .mono{color:var(--amber);font-weight:700;}

/* 下层：主栏目带 */
.hdr-bottom{
  position:relative;
  background:var(--teal);
  background-image:linear-gradient(90deg,rgba(15,163,107,.18),rgba(15,163,107,0) 58%);
}
.hdr-bottom-inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,26px);
  padding-block:10px;
  transition:padding .24s var(--ease);
}
.site-header[data-scrolled] .hdr-top{max-height:0;opacity:0;}
.site-header[data-scrolled] .hdr-bottom-inner{padding-block:5px;}

.hdr-quick{display:none;}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border:1px solid rgba(244,251,247,.3);
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
}
.nav-toggle-bar{display:block;width:16px;height:2px;background:var(--orange);}
.nav-toggle-bar + .nav-toggle-bar{margin-top:-6px;}
.nav-toggle-label{line-height:1;}

.site-nav{flex:1 1 auto;min-width:0;}
.nav-list{display:flex;flex-wrap:wrap;gap:2px;}
.nav-item{min-width:0;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  font-size:15px;
  font-weight:700;
  color:rgba(244,251,247,.82);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(15,163,107,.18);}
.nav-link[aria-current="page"]{
  background:var(--green);
  color:var(--paper);
  font-weight:800;
}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:3px;
  background:var(--orange);
  transform:skewX(-12deg);
}

.hdr-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  border:1px solid transparent;
  font-size:14px;
  font-weight:800;
  letter-spacing:.01em;
  white-space:nowrap;
  transform:skewX(-6deg);
  transition:transform .2s var(--ease),background-color .2s var(--ease),
             color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{transform:skewX(-6deg) translateY(-2px);}
.btn-primary{background:var(--orange);border-color:var(--orange);color:#10161A;}
.btn-primary:hover{background:var(--amber);border-color:var(--amber);}
.btn-ghost{background:transparent;border-color:rgba(244,251,247,.32);color:var(--paper);}
.btn-ghost:hover{border-color:var(--green-soft);color:var(--paper);}

/* 阅读进度光条 */
.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:0;
  height:3px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--green),var(--orange) 55%,var(--amber));
  pointer-events:none;
}

/* ===========================================================
   页脚
   =========================================================== */
.site-footer{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  border-top:1px solid var(--line-dark);
  padding-top:clamp(56px,7vw,92px);
  overflow:hidden;
}
.ftr-glow{
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--green) 25%,var(--orange) 62%,transparent);
  opacity:.9;
}
.ftr-grid{
  display:grid;
  grid-template-columns:1.5fr .9fr .9fr .9fr 1.3fr;
  gap:clamp(28px,3.4vw,44px);
  align-items:start;
}
.ftr-col{min-width:0;}
.ftr-col-brand{max-width:34ch;}
.ftr-brand{
  display:inline-block;
  font-family:var(--f-display);
  font-style:italic;
  font-weight:900;
  font-size:clamp(1.4rem,2.4vw,1.8rem);
  line-height:1.05;
  letter-spacing:-.02em;
  transform:skewX(-6deg);
}
.ftr-tagline{margin:10px 0 0;font-size:14px;letter-spacing:.08em;color:var(--green-soft);}
.ftr-note{margin:14px 0 0;font-size:14px;line-height:1.7;color:rgba(244,251,247,.66);}
.ftr-title{
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--amber);
  margin-bottom:16px;
}
.ftr-title::after{
  content:"";
  display:block;
  width:22px;height:2px;
  margin-top:10px;
  background:var(--green);
  transform:skewX(-12deg);
}
.ftr-list li + li{margin-top:10px;}
.ftr-list a{
  font-size:15px;
  color:rgba(244,251,247,.78);
  transition:color .18s var(--ease);
}
.ftr-list a:hover{color:var(--green-soft);}
.ftr-contact li + li{margin-top:12px;}
.ftr-contact-item{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.6;
  color:rgba(244,251,247,.8);
  word-break:break-all;
}
.ftr-label{
  flex:0 0 34px;
  padding-top:2px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
}
.ftr-hours{margin:14px 0 0;font-size:13px;color:var(--muted);}
.ftr-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  margin-top:clamp(40px,6vw,68px);
  padding-block:20px 26px;
  border-top:1px solid var(--line-dark);
  font-size:13px;
  color:rgba(244,251,247,.55);
}
.ftr-oldver a{color:var(--green-soft);font-weight:700;}
.ftr-oldver a:hover{color:var(--orange);}
.ftr-legal{
  margin:0;
  font-family:var(--f-data);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(244,251,247,.5);
}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width:1180px){
  .index-rail{display:none;}
  .ftr-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .ftr-col-brand{grid-column:1 / -1;max-width:none;}
}

@media (max-width:1080px){
  .hdr-actions .btn-ghost{display:none;}
}

@media (max-width:980px){
  .grid-7-5,.grid-8-4{grid-template-columns:1fr;}
}

@media (max-width:880px){
  .hdr-top-inner{
    grid-template-columns:minmax(0,1fr) auto;
    gap:6px 16px;
    padding-block:9px;
  }
  .hdr-status{display:none;}
  .hdr-meta{font-size:11px;gap:12px;}
  .brand-tag{display:none;}

  .hdr-bottom-inner{gap:10px;padding-block:8px;}

  .hdr-quick{
    display:inline-flex;
    align-items:center;
    padding:8px 13px;
    font-size:14px;
    font-weight:800;
    color:var(--paper);
    background:rgba(15,163,107,.24);
    border:1px solid rgba(111,211,168,.5);
    transform:skewX(-6deg);
    white-space:nowrap;
  }
  .hdr-quick:hover{background:rgba(15,163,107,.4);}

  .nav-toggle{display:inline-flex;margin-left:auto;}

  .site-nav{
    position:absolute;
    left:0;right:0;top:100%;
    flex:none;
    max-height:0;
    overflow:hidden;
    background:var(--teal);
    border-bottom:1px solid var(--line-dark);
    transition:max-height .24s var(--ease);
  }
  .site-nav[data-open]{
    max-height:min(72vh,560px);
    overflow-y:auto;
  }
  .nav-list{flex-direction:column;gap:0;}
  .nav-item{border-top:1px solid var(--line-dark);}
  .nav-link{
    display:block;
    padding:14px 20px;
    font-size:16px;
    color:rgba(244,251,247,.86);
  }
  .nav-link[aria-current="page"]{
    background:rgba(15,163,107,.28);
    box-shadow:inset 3px 0 0 var(--orange);
  }
  .nav-link[aria-current="page"]::after{display:none;}

  .hdr-actions{display:none;}
  .scroll-progress{height:2px;}
}

@media (max-width:640px){
  .ftr-grid{grid-template-columns:1fr;gap:32px;}
  .ftr-base{justify-content:flex-start;}
  .section{padding-block:clamp(52px,11vw,80px);}
  .panel{padding:22px 20px;}
  .card{padding:16px 18px;}
}

/* ===========================================================
   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;
  }
  [data-reveal]{opacity:1;transform:none;}
  .rail::after{display:none;}
  .card:hover{transform:none;}
  .btn:hover{transform:skewX(-6deg);}
}