/* =========================================================
   宝威体育BVTY · site.css
   共享层：reset / tokens / 排版 / 布局 / 组件 / 头部 / 页脚
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:#071B16;
  --ink-deep:#04110D;
  --charcoal:#0E1412;
  --panel:#123029;
  --panel-soft:#0B241D;
  --lime:#C6FF3D;
  --orange:#FF6A2B;
  --sand:#C9A86A;
  --bone:#F2F5EF;
  --mist:#7E948C;
  --cyan:#5AD7FF;

  --line:rgba(126,148,140,.2);
  --line-soft:rgba(126,148,140,.12);
  --line-strong:rgba(201,168,106,.3);

  --font-display:"Barlow Condensed","Arial Narrow","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1440px;
  --gutter:clamp(16px,3.4vw,40px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  background-color:var(--ink);
  background-image:
    radial-gradient(1200px 560px at 84% -10%,rgba(198,255,61,.07),transparent 60%),
    radial-gradient(820px 520px at 0% 16%,rgba(90,215,255,.055),transparent 62%),
    radial-gradient(900px 640px at 50% 118%,rgba(201,168,106,.05),transparent 70%);
  background-repeat:no-repeat;
  color:var(--bone);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
figure{margin:0;}
hr{border:0;}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4,h5,h6{
  margin:0 0 .5em;
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.1;
  letter-spacing:-.015em;
  color:var(--bone);
}
h1{font-size:clamp(32px,4.6vw,56px);}
h2{font-size:clamp(26px,3.2vw,40px);}
h3{font-size:clamp(20px,2.2vw,28px);}
h4{font-size:clamp(17px,1.6vw,22px);}
p,li{max-width:72ch;}

.display-xl{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(44px,7.2vw,96px);
  line-height:.94;
  letter-spacing:-.03em;
  text-transform:uppercase;
  margin:0 0 .3em;
}
.lede{
  font-size:clamp(16px,1.6vw,18px);
  line-height:1.75;
  color:rgba(242,245,239,.85);
  max-width:64ch;
}
.index-label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--mist);
}
.index-label::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--sand);
  flex:none;
}
.text-mist{color:var(--mist);}
.text-lime{color:var(--lime);}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* ---------- 4. 布局 ---------- */
.shell{
  width:min(var(--shell),100%);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(42px,6vw,88px);}
.section--tight{padding-block:clamp(26px,4vw,52px);}
.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr));}
.grid--sidebar{grid-template-columns:minmax(0,240px) minmax(0,1fr);align-items:start;}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 24px;
  border:1px solid transparent;
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  text-decoration:none;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:var(--bone);}
.btn--ghost{background:transparent;color:var(--bone);border-color:var(--line-strong);}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime);}
.btn--signal{background:var(--orange);color:#120A05;}
.btn--signal:hover{background:#FF8552;}

/* ---------- 6. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.12em;
  color:var(--mist);
}
.breadcrumb li{display:inline-flex;align-items:center;max-width:none;}
.breadcrumb li::after{
  content:"/";
  margin-left:8px;
  color:rgba(126,148,140,.45);
}
.breadcrumb li:last-child::after{content:"";margin:0;}
.breadcrumb a{color:var(--mist);text-decoration:none;transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb [aria-current="page"]{color:var(--sand);}

/* ---------- 7. 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  border:1px solid var(--line);
  color:var(--mist);
  background:rgba(18,48,41,.5);
}
.tag--lime{border-color:rgba(198,255,61,.45);color:var(--lime);background:rgba(198,255,61,.08);}
.tag--signal{border-color:rgba(255,106,43,.5);color:var(--orange);background:rgba(255,106,43,.09);}
.tag--sand{border-color:rgba(201,168,106,.42);color:var(--sand);background:rgba(201,168,106,.08);}

/* ---------- 8. 面板 / 媒体 / 分隔 ---------- */
.cut-panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:var(--panel);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%);
}
.cut-panel--accent{
  background:
    linear-gradient(180deg,rgba(198,255,61,.12),transparent 44%),
    var(--panel);
}
.cut-panel > :first-child{margin-top:0;}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:linear-gradient(140deg,var(--panel),#0A1F19 72%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.82) contrast(1.06) brightness(.94);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,rgba(7,27,22,0) 42%,rgba(7,27,22,.62) 100%);
}
.media--wide{aspect-ratio:21 / 9;}
.media--square{aspect-ratio:1 / 1;}
.media--tall{aspect-ratio:4 / 5;}
.media--empty::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(90deg,rgba(126,148,140,.13) 1px,transparent 1px),
    linear-gradient(0deg,rgba(126,148,140,.13) 1px,transparent 1px);
  background-size:28px 28px;
}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--mist);
}

.rule{
  height:1px;
  margin:0;
  background:linear-gradient(90deg,var(--sand),rgba(201,168,106,.12) 42%,transparent 72%);
  opacity:.5;
}

/* ---------- 9. 显现 ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
}
html.js [data-reveal].is-in{
  opacity:1;
  transform:none;
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}

/* ---------- 10. 跳转链接 / 滚动进度 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:-90px;
  z-index:300;
  padding:11px 20px;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.1em;
  text-decoration:none;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:16px;}

.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 58%,var(--orange));
  z-index:250;
  pointer-events:none;
}

/* ---------- 11. 头部 ---------- */
.site-header{
  position:relative;
  z-index:90;
  color:var(--bone);
  background:
    radial-gradient(120% 180% at 50% -45%,rgba(198,255,61,.11),transparent 58%),
    linear-gradient(180deg,var(--ink) 0%,var(--panel-soft) 62%,var(--ink) 100%);
  border-bottom:1px solid var(--line-strong);
}
.site-header::before{
  content:"";
  display:block;
  height:3px;
  background:linear-gradient(90deg,var(--lime) 0 22%,var(--sand) 22% 34%,transparent 34% 100%);
  opacity:.8;
}

.header-bar{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:clamp(12px,3vw,40px);
  width:min(var(--shell),100%);
  margin-inline:auto;
  padding:clamp(14px,2vw,22px) var(--gutter);
}

.brand{
  justify-self:start;
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--bone);
}
.brand-mark{
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  flex:none;
  background:var(--lime);
  color:var(--ink);
  font-family:var(--font-display);
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  transition:background .18s var(--ease);
}
.brand:hover .brand-mark{background:var(--bone);}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-name{font-size:15px;font-weight:600;letter-spacing:.16em;}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  color:var(--mist);
  text-transform:uppercase;
}

.masthead{
  justify-self:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:5px;
  text-align:center;
}
.masthead-kicker{
  margin:0;
  max-width:none;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.42em;
  text-transform:uppercase;
  color:var(--sand);
}
.wordmark{
  display:inline-flex;
  align-items:baseline;
  gap:12px;
  text-decoration:none;
  color:var(--bone);
}
.wordmark-latin{
  font-family:var(--font-display);
  font-weight:600;
  font-size:clamp(26px,3.2vw,40px);
  line-height:1;
  letter-spacing:.14em;
  padding-left:.14em;
}
.wordmark-cn{
  font-size:11.5px;
  letter-spacing:.34em;
  color:rgba(242,245,239,.68);
  padding-left:.34em;
}

.header-actions{
  justify-self:end;
  display:flex;
  align-items:center;
  gap:12px;
}
.score-strip{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border:1px solid rgba(198,255,61,.42);
  background:linear-gradient(115deg,rgba(198,255,61,.16),rgba(198,255,61,.03));
  color:var(--lime);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  line-height:1;
  text-decoration:none;
  white-space:nowrap;
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.score-strip:hover,
.score-strip:focus-visible{
  border-color:var(--lime);
  background:rgba(198,255,61,.24);
}
.score-strip:active{transform:translateY(1px);}
.score-strip-dot{
  width:7px;
  height:7px;
  flex:none;
  border-radius:50%;
  background:var(--lime);
  animation:score-pulse 2.6s var(--ease) infinite;
}
@keyframes score-pulse{
  0%{box-shadow:0 0 0 0 rgba(198,255,61,.55);}
  70%{box-shadow:0 0 0 7px rgba(198,255,61,0);}
  100%{box-shadow:0 0 0 0 rgba(198,255,61,0);}
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:10px 12px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--bone);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--sand);color:var(--bone);}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:10px;
  flex:none;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:1.5px;
  background:var(--lime);
  transition:transform .2s var(--ease),top .2s var(--ease);
}
.nav-toggle-bars::before{top:0;}
.nav-toggle-bars::after{top:8px;}
.site-header[data-open] .nav-toggle-bars::before{top:4px;transform:rotate(45deg);}
.site-header[data-open] .nav-toggle-bars::after{top:4px;transform:rotate(-45deg);}
.nav-toggle-text{line-height:1;}

.primary-nav{
  border-top:1px solid var(--line);
  background:linear-gradient(90deg,transparent,rgba(18,48,41,.62) 18%,rgba(18,48,41,.62) 82%,transparent);
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:clamp(2px,1.4vw,26px);
  width:min(var(--shell),100%);
  margin-inline:auto;
  padding:0 var(--gutter);
}
.nav-list li{max-width:none;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:15px 6px;
  color:var(--mist);
  font-size:14px;
  letter-spacing:.14em;
  text-decoration:none;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:6px;right:6px;
  bottom:9px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible{color:var(--bone);}
.nav-link:hover::after,
.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--lime);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange);}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:
    radial-gradient(90% 130% at 50% 0%,rgba(18,48,41,.9),transparent 68%),
    var(--charcoal);
  border-top:1px solid var(--line-strong);
  color:var(--bone);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:linear-gradient(90deg,var(--sand),var(--lime) 28%,transparent 68%);
  opacity:.65;
}
.footer-inner{
  width:min(var(--shell),100%);
  margin-inline:auto;
  padding:clamp(40px,5vw,72px) var(--gutter) 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.35fr .75fr 1.4fr;
  gap:clamp(24px,4vw,64px);
  padding-bottom:clamp(28px,4vw,48px);
  border-bottom:1px solid var(--line);
}
.footer-brand-link{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  font-family:var(--font-display);
  font-size:clamp(22px,2.6vw,30px);
  font-weight:600;
  letter-spacing:.12em;
  color:var(--bone);
  text-decoration:none;
  line-height:1.2;
  transition:color .18s var(--ease);
}
.footer-brand-link span{
  color:var(--lime);
  font-size:.82em;
  letter-spacing:.2em;
}
.footer-brand-link:hover{color:var(--lime);}
.footer-brand-line{
  margin:10px 0 6px;
  max-width:none;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--sand);
}
.footer-statement{
  margin:0;
  max-width:34ch;
  font-size:14px;
  line-height:1.8;
  color:var(--mist);
}
.footer-heading{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--mist);
}
.footer-list li{max-width:none;}
.footer-list a{
  display:inline-block;
  padding:5px 0;
  color:rgba(242,245,239,.82);
  font-size:14px;
  letter-spacing:.06em;
  text-decoration:none;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible{color:var(--lime);padding-left:6px;}

.contact-list{margin:0;}
.contact-row{
  display:grid;
  grid-template-columns:78px minmax(0,1fr);
  gap:14px;
  padding:9px 0;
  border-bottom:1px dashed rgba(126,148,140,.18);
}
.contact-row dt{
  margin:0;
  padding-top:3px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--mist);
}
.contact-row dd{
  margin:0;
  font-size:14.5px;
  line-height:1.65;
  color:var(--bone);
  word-break:break-word;
}
.footer-service-note{
  margin:16px 0 18px;
  max-width:40ch;
  font-size:12.5px;
  line-height:1.75;
  color:var(--mist);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  padding:20px 0 28px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--mist);
}
.footer-legal{margin:0;max-width:none;}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-legal-links li{max-width:none;}
.footer-legal-links a{
  position:relative;
  display:inline-block;
  padding-bottom:2px;
  color:var(--mist);
  text-decoration:none;
  transition:color .18s var(--ease);
}
.footer-legal-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--sand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.footer-legal-links a:hover,
.footer-legal-links a:focus-visible{color:var(--bone);}
.footer-legal-links a:hover::after,
.footer-legal-links a:focus-visible::after{transform:scaleX(1);}
.footer-copy{margin:0;max-width:none;color:rgba(126,148,140,.9);}

/* ---------- 13. 焦点 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
.btn:focus-visible,
.score-strip:focus-visible{outline-offset:2px;}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1180px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;row-gap:clamp(28px,4vw,44px);}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:1024px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid--sidebar{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:920px){
  .header-bar{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand actions"
      "mast mast";
    row-gap:14px;
    padding-block:14px;
  }
  .brand{grid-area:brand;}
  .header-actions{grid-area:actions;}
  .masthead{grid-area:mast;}
  .wordmark-latin{font-size:26px;}
  .wordmark-cn{font-size:10.5px;letter-spacing:.28em;padding-left:.28em;}
  .masthead-kicker{font-size:9.5px;letter-spacing:.3em;}

  .nav-toggle{display:inline-flex;}

  .primary-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    border-top:1px solid rgba(201,168,106,.28);
    border-bottom:1px solid rgba(201,168,106,.28);
    background:linear-gradient(180deg,var(--panel-soft),var(--ink));
    transition:max-height .24s var(--ease),visibility .24s linear;
  }
  .site-header[data-open] .primary-nav{
    max-height:min(70vh,520px);
    overflow-y:auto;
    visibility:visible;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:0;
  }
  .nav-link{
    display:block;
    padding:16px var(--gutter);
    border-bottom:1px solid var(--line-soft);
    letter-spacing:.1em;
  }
  .nav-link::after{display:none;}
  .nav-link[aria-current="page"]{
    background:rgba(198,255,61,.09);
    box-shadow:inset 3px 0 0 var(--orange);
  }
}
@media (max-width:720px){
  .grid--2,
  .grid--3,
  .grid--4{grid-template-columns:minmax(0,1fr);}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .contact-row{grid-template-columns:70px minmax(0,1fr);gap:10px;}
  .score-strip{padding:9px 11px;font-size:11px;letter-spacing:.1em;}
}
@media (max-width:480px){
  .brand-sub{display:none;}
  .wordmark-cn{display:none;}
  .nav-toggle-text{display:none;}
  .display-xl{font-size:clamp(36px,11vw,52px);}
}

/* ---------- 15. 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js [data-reveal],
  html.js [data-reveal].is-in{
    opacity:1;
    transform:none;
  }
  .score-strip-dot{animation:none;box-shadow:0 0 0 3px rgba(198,255,61,.22);}
}