/* ==========================================================================
   BSPORTS赛事 · 共享站点套件 /assets/site.css
   01 变量  02 重置与中文排版  03 通用组件  04 页头  05 页脚  06 响应式
   ========================================================================== */

/* ---------- 01 变量 ---------- */
:root{
  --pitch:#071C16;
  --pitch-2:#0D2B22;
  --carbon:#050A08;
  --lime:#C8FF3D;
  --cyan:#38E0B0;
  --orange:#FF8A3D;
  --cool:#91A79D;
  --mist:#EAF2EC;
  --grid:#1D3A30;
  --red:#FF5C5C;
  --ink-on-lime:#06170F;

  --font-display:"PingFang SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --radius:18px;
  --radius-sm:10px;
  --header-h:66px;
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --container:1440px;
}

/* ---------- 02 重置与中文排版 ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  min-height:100%;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--mist);
  background-color:var(--pitch);
  background-image:
    radial-gradient(900px 520px at 84% -6%,rgba(56,224,176,.10),transparent 68%),
    radial-gradient(720px 420px at 2% 4%,rgba(200,255,61,.06),transparent 66%),
    repeating-linear-gradient(90deg,rgba(29,58,48,.26) 0 1px,transparent 1px 104px);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.02;
  color:var(--mist);
  margin:0 0 .5em;
}

h1{font-size:clamp(48px,8vw,120px);line-height:.95;}
h2{font-size:clamp(32px,4vw,64px);line-height:.98;}
h3{font-size:clamp(20px,2.2vw,28px);line-height:1.12;}
h4{font-size:17px;line-height:1.3;letter-spacing:0;}

p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}

a{color:inherit;text-decoration:none;}
a:hover{color:var(--lime);}

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

button{font:inherit;color:inherit;}

strong,b{color:var(--mist);font-weight:700;}

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

:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:4px;
}

#main-content{display:block;}

/* ---------- 03 通用组件 ---------- */
.container{
  width:min(var(--container),100% - clamp(24px,6vw,96px));
  margin-inline:auto;
}

.container--narrow{
  width:min(820px,100% - clamp(24px,6vw,72px));
  margin-inline:auto;
}

.section{padding-block:clamp(40px,6vw,88px);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--lime);
  margin:0 0 14px;
}
.eyebrow::before{
  content:"";
  width:20px;
  height:2px;
  background:var(--lime);
  flex:0 0 auto;
}

.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(30px,3.8vw,56px);
  line-height:1.02;
  letter-spacing:-.02em;
  margin:0 0 16px;
}

.lede{
  font-size:clamp(15px,1.5vw,18px);
  line-height:1.75;
  color:var(--cool);
  max-width:64ch;
  margin:0 0 1em;
}

.prose p{max-width:68ch;color:var(--cool);}
.prose h3{margin-top:1.6em;}
.prose strong{color:var(--mist);}

.mono{
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

.rule{
  height:1px;
  border:0;
  background:var(--grid);
  margin:clamp(24px,4vw,48px) 0;
}

.grid{
  display:grid;
  gap:clamp(16px,2.2vw,28px);
}
.grid--split{
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  align-items:start;
}

.panel{
  background:var(--pitch-2);
  border:1px solid var(--grid);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
  transition:border-color var(--ease),transform var(--ease);
}
.panel:hover{border-color:rgba(200,255,61,.55);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:13px 24px;
  border-radius:999px;
  border:1px solid var(--grid);
  background:transparent;
  color:var(--mist);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.01em;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.btn:hover{color:var(--lime);border-color:var(--lime);}

.btn--lime{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink-on-lime);
}
.btn--lime:hover{
  background:transparent;
  color:var(--lime);
  border-color:var(--lime);
}

.btn--ghost{
  background:transparent;
  border-color:var(--grid);
  color:var(--mist);
}
.btn--ghost:hover{
  border-color:var(--lime);
  color:var(--lime);
}

.btn--sm{
  padding:9px 16px;
  font-size:12px;
  font-family:var(--font-mono);
  letter-spacing:.06em;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  border:1px solid var(--grid);
  background:rgba(13,43,34,.7);
  color:var(--cool);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  white-space:nowrap;
}
.tag--lime{border-color:rgba(200,255,61,.5);color:var(--lime);}
.tag--cyan{border-color:rgba(56,224,176,.5);color:var(--cyan);}
.tag--orange{border-color:rgba(255,138,61,.5);color:var(--orange);}

.breadcrumbs{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--cool);
  padding-block:14px;
}
.breadcrumbs-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
}
.breadcrumbs-list li{display:flex;align-items:center;gap:8px;}
.breadcrumbs-list li + li::before{content:"/";color:var(--grid);}
.breadcrumbs a{color:var(--cool);transition:color var(--ease);}
.breadcrumbs a:hover{color:var(--lime);}
.breadcrumbs-current{color:var(--mist);}

/* 图片容器：页面阶段直接放 <img> 或 <picture> */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--grid);
  aspect-ratio:16 / 9;
  background-color:var(--pitch-2);
  background-image:
    radial-gradient(120% 110% at 72% 0%,rgba(56,224,176,.16),transparent 62%),
    radial-gradient(90% 90% at 10% 100%,rgba(200,255,61,.10),transparent 60%),
    repeating-linear-gradient(90deg,rgba(29,58,48,.6) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(0deg,rgba(29,58,48,.6) 0 1px,transparent 1px 48px),
    linear-gradient(160deg,#0D2B22,#071C16 72%);
}
.media-frame > img,
.media-frame > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.95) contrast(1.05);
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;}
.media-frame--square{aspect-ratio:1 / 1;}

.media-caption{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--cool);
  margin:10px 0 0;
}

.media-tag{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
  padding:5px 11px;
  border-radius:999px;
  background:var(--lime);
  color:var(--ink-on-lime);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
}

/* ---------- 04 页头 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-72px;
  z-index:200;
  padding:11px 20px;
  background:var(--lime);
  color:var(--ink-on-lime);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  border-radius:0 0 12px 12px;
  transition:top var(--ease);
}
.skip-link:focus{top:0;color:var(--ink-on-lime);}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--carbon);
  border-bottom:1px solid var(--grid);
}

.header-bar{
  width:min(var(--container),100% - clamp(20px,4vw,64px));
  margin-inline:auto;
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,28px);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding-block:10px;
  color:var(--mist);
}
.brand:hover{color:var(--mist);}
.brand-mark{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:900;
  line-height:1;
  letter-spacing:-.01em;
  color:var(--mist);
}
.brand-badge{
  padding:3px 9px;
  border:1px solid rgba(200,255,61,.45);
  border-radius:999px;
  color:var(--lime);
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:700;
  letter-spacing:.08em;
  white-space:nowrap;
}
.brand-sub{
  padding-left:11px;
  border-left:1px solid var(--grid);
  color:var(--cool);
  font-size:11px;
  letter-spacing:.14em;
  white-space:nowrap;
}

.site-nav{
  flex:1 1 auto;
  display:flex;
  justify-content:center;
}

.nav-list{
  display:flex;
  align-items:stretch;
  gap:2px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-item{display:flex;}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:23px 14px;
  color:var(--cool);
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:13px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--mist);}
.nav-link:hover::after{transform:scaleX(1);}

.nav-index{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:700;
  color:var(--cool);
  opacity:.65;
}

.nav-link[aria-current="page"]{color:var(--lime);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);}
.nav-link[aria-current="page"] .nav-index{color:var(--lime);opacity:1;}
.nav-link[aria-current="page"] .nav-index::after{
  content:"";
  display:inline-block;
  width:4px;
  height:4px;
  margin-left:5px;
  vertical-align:middle;
  background:var(--lime);
}

.nav-panel-foot{display:none;}
.nav-panel-note{
  flex:1 1 100%;
  margin:0 0 2px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--cool);
}
.nav-panel-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 18px;
  border:1px solid var(--lime);
  border-radius:999px;
  background:var(--lime);
  color:var(--ink-on-lime);
  font-size:13px;
  font-weight:700;
  transition:background var(--ease),color var(--ease);
}
.nav-panel-link:hover{background:transparent;color:var(--lime);}
.nav-panel-link--ghost{
  background:transparent;
  border-color:var(--grid);
  color:var(--mist);
}
.nav-panel-link--ghost:hover{border-color:var(--lime);color:var(--lime);}

.header-utility{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.live-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--lime);
  box-shadow:0 0 0 3px rgba(200,255,61,.16);
  animation:livePulse 2.6s ease-in-out infinite;
}
@keyframes livePulse{
  0%,100%{box-shadow:0 0 0 3px rgba(200,255,61,.16);}
  50%{box-shadow:0 0 0 7px rgba(200,255,61,.03);}
}
.utility-text{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--cool);
  white-space:nowrap;
}
.header-cta{
  padding:9px 18px;
  border:1px solid var(--lime);
  border-radius:999px;
  background:var(--lime);
  color:var(--ink-on-lime);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease);
}
.header-cta:hover{background:transparent;color:var(--lime);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 14px;
  border:1px solid var(--grid);
  border-radius:var(--radius-sm);
  background:transparent;
  color:var(--mist);
  cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:currentColor;
  transition:transform var(--ease);
}
.nav-toggle-bars::before{top:-5px;}
.nav-toggle-bars::after{top:5px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg);}
.nav-toggle-label{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.1em;
}

.status-strip{
  background:#030706;
  border-top:1px solid var(--grid);
  overflow:hidden;
}
.status-strip-inner{
  width:min(var(--container),100% - clamp(20px,4vw,64px));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:24px;
  padding:7px 0;
  overflow-x:auto;
  scrollbar-width:none;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--cool);
}
.status-strip-inner::-webkit-scrollbar{display:none;}
.status-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
}
.status-item::before{
  content:"";
  width:5px;
  height:5px;
  background:var(--lime);
  transform:rotate(45deg);
  flex:0 0 auto;
}
.status-item--warn::before{background:var(--orange);}

.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:rgba(29,58,48,.7);
  pointer-events:none;
}
.scroll-progress-bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--lime),var(--cyan));
}

/* ---------- 05 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--carbon);
  border-top:1px solid var(--grid);
  color:var(--cool);
  padding:clamp(36px,5vw,68px) 0 26px;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,var(--lime),rgba(200,255,61,0) 55%,var(--cyan));
}

.footer-inner{
  width:min(var(--container),100% - clamp(24px,6vw,96px));
  margin-inline:auto;
}

.footer-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:24px;
  padding-bottom:26px;
  border-bottom:1px solid var(--grid);
}
.footer-brand{max-width:52ch;}
.footer-brand-mark{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(24px,3vw,34px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--mist);
  margin:0;
}
.footer-brand-mark span{
  margin-left:8px;
  font-size:.55em;
  color:var(--lime);
  letter-spacing:.02em;
}
.footer-brand-line{
  margin:12px 0 0;
  font-size:14px;
  line-height:1.7;
  color:var(--cool);
}

.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  padding:9px 16px;
  border:1px solid var(--grid);
  border-radius:999px;
  background:transparent;
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,1.6fr);
  gap:clamp(20px,3vw,48px);
  padding:32px 0 28px;
}

.footer-col-title{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--lime);
}

.footer-links{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:9px;
}
.footer-links a{
  position:relative;
  display:inline-block;
  color:var(--cool);
  font-size:14px;
  transition:color var(--ease);
}
.footer-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-2px;
  width:100%;
  height:1px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.footer-links a:hover{color:var(--mist);}
.footer-links a:hover::after{transform:scaleX(1);}

.contact-row{
  display:grid;
  grid-template-columns:52px minmax(0,1fr) auto;
  align-items:baseline;
  gap:10px;
  margin:0 0 10px;
  font-size:14px;
  line-height:1.6;
}
.contact-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--cool);
}
.contact-value{
  color:var(--mist);
  word-break:break-word;
}

.copy-btn{
  padding:2px 11px;
  border:1px solid var(--grid);
  border-radius:999px;
  background:transparent;
  color:var(--cool);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.copy-btn:hover{border-color:var(--lime);color:var(--lime);}
.copy-btn[data-copied]{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink-on-lime);
}

.footer-note{
  margin:14px 0 0;
  max-width:52ch;
  font-size:12px;
  line-height:1.75;
  color:var(--cool);
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
  gap:10px 24px;
  padding-top:18px;
  border-top:1px solid var(--grid);
}
.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--cool);
}

/* ---------- 06 响应式 ---------- */
@media (max-width:1180px){
  .brand-sub{display:none;}
  .utility-text{display:none;}
}

@media (max-width:1024px){
  .grid--split{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:960px){
  :root{--header-h:60px;}

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

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    display:block;
    padding:0 clamp(18px,4vw,28px);
    background:var(--carbon);
    border-top:1px solid var(--grid);
    border-bottom:1px solid var(--grid);
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    transition:max-height 220ms ease,visibility 220ms ease,padding-bottom 220ms ease;
  }
  .site-nav[data-open]{
    max-height:78vh;
    overflow-y:auto;
    visibility:visible;
    padding-bottom:20px;
  }

  .nav-list{flex-direction:column;gap:0;}
  .nav-item{border-bottom:1px solid var(--grid);}
  .nav-item:last-child{border-bottom:0;}
  .nav-link{
    width:100%;
    padding:16px 2px;
    font-size:15px;
    justify-content:flex-start;
    gap:12px;
  }
  .nav-link::after{
    left:2px;
    right:auto;
    bottom:9px;
    width:34px;
  }

  .nav-panel-foot{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-top:16px;
    padding-top:16px;
    border-top:1px solid var(--grid);
  }

  .header-utility{display:none;}

  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{flex-direction:column;align-items:flex-start;}
}

@media (max-width:680px){
  body{font-size:16px;}
  .header-bar{flex-wrap:nowrap;}
  .brand{gap:8px;}
  .brand-badge{font-size:9px;padding:3px 7px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .contact-row{grid-template-columns:46px minmax(0,1fr);}
  .contact-row .copy-btn{grid-column:2;justify-self:start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}