/* ============ BSPORT 赛场 · 共享样式 /assets/site.css ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:180px}
body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}

:root{
  --c-bg:#06110E;
  --c-bg-1:#0B1F18;
  --c-bg-2:#122E24;
  --c-lime:#C8FF3D;
  --c-orange:#FF6B2C;
  --c-white:#F2F7F4;
  --c-gray:#9FB3A8;
  --c-line:#2A4038;
  --c-amber:#FFC94A;
  --c-teal:#1E6B58;
  --font-display:"Barlow Condensed","Oswald","Haettenschweiler","Impact","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
  --font-body:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --w-max:1240px;
  --gutter:clamp(16px,4vw,40px);
  --cut:12px;
  --cut-s:8px;
}

body{
  background-color:var(--c-bg);
  background-image:
    radial-gradient(1100px 560px at 88% -8%,rgba(200,255,61,.07),transparent 68%),
    radial-gradient(900px 520px at 2% 108%,rgba(255,107,44,.055),transparent 70%),
    repeating-linear-gradient(135deg,rgba(42,64,56,.30) 0 1px,transparent 1px 24px);
  background-attachment:fixed;
  color:var(--c-white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
p{max-width:72ch}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--c-lime);
  outline-offset:3px;
}
.skip-link{
  position:absolute;left:12px;top:-120px;z-index:200;
  background:var(--c-lime);color:#06110E;
  padding:10px 18px;font-size:13px;font-weight:700;letter-spacing:.08em;
  transition:top .18s ease;
}
.skip-link:focus{top:12px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,#08170F 0%,#06110E 100%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 12px 32px -24px rgba(0,0,0,.9);
}
.site-header[data-edition="cn"]{
  background:linear-gradient(180deg,#062622 0%,#07201C 62%,#06110E 100%);
  border-bottom-color:var(--c-teal);
}
.header-top{border-bottom:1px solid var(--c-line)}
.header-top__inner{
  max-width:var(--w-max);margin-inline:auto;
  padding:6px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.header-top__meta{
  font-size:11px;letter-spacing:.18em;color:var(--c-gray);
  font-family:var(--font-mono);white-space:nowrap;max-width:none;
}
.edition-switch{display:inline-flex;border:1px solid var(--c-line);background:rgba(6,17,14,.65);margin-left:auto}
.edition-switch__btn{
  padding:5px 12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--c-gray);white-space:nowrap;transition:background .18s ease,color .18s ease;
}
.edition-switch__btn[aria-pressed="true"]{background:var(--c-lime);color:#06110E;font-weight:700}
.edition-switch__btn[aria-pressed="false"]:hover{color:var(--c-white);background:rgba(200,255,61,.09)}
.site-header[data-edition="cn"] .edition-switch__btn[aria-pressed="true"]{background:var(--c-orange);color:#06110E}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  border:1px solid var(--c-line);padding:6px 10px;
  color:var(--c-white);font-size:12px;letter-spacing:.12em;
}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:var(--c-lime);transition:background .18s ease}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:inherit;transition:transform .18s ease,top .18s ease}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.site-header[data-nav-open] .nav-toggle__bars{background:transparent}
.site-header[data-nav-open] .nav-toggle__bars::before{top:0;transform:rotate(45deg);background:var(--c-orange)}
.site-header[data-nav-open] .nav-toggle__bars::after{top:0;transform:rotate(-45deg);background:var(--c-orange)}

.masthead{
  max-width:var(--w-max);margin-inline:auto;
  padding:clamp(10px,1.6vw,18px) var(--gutter);
  display:flex;align-items:center;gap:clamp(12px,3vw,32px);
}
.masthead__rule{flex:1 1 0;height:1px;background:linear-gradient(90deg,transparent,var(--c-line) 70%)}
.masthead__rule--end{background:linear-gradient(270deg,transparent,var(--c-line) 70%)}
.masthead__brand{display:flex;align-items:baseline;justify-content:center;gap:10px;flex-wrap:wrap;text-align:center}
.masthead__name{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:clamp(26px,4.2vw,46px);line-height:.9;letter-spacing:-.02em;color:var(--c-white);
  transition:font-size .18s ease;
}
.masthead__cn{font-size:clamp(13px,1.6vw,17px);font-weight:700;letter-spacing:.32em;color:var(--c-lime)}
.site-header[data-edition="cn"] .masthead__cn{color:var(--c-orange)}
.masthead__sub{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--c-gray);
  border-left:1px solid var(--c-line);padding-left:10px;
}

.site-nav{max-width:var(--w-max);margin-inline:auto;padding:0 var(--gutter);border-top:1px solid var(--c-line)}
.nav-list{display:flex;justify-content:center;flex-wrap:wrap}
.nav-list__item+.nav-list__item{border-left:1px solid var(--c-line)}
.nav-link{
  display:block;position:relative;
  padding:9px clamp(10px,1.6vw,20px);
  font-size:13px;letter-spacing:.14em;color:var(--c-gray);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--c-white);background:rgba(200,255,61,.06)}
.nav-link[aria-current="page"]{color:var(--c-lime)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:clamp(10px,1.6vw,20px);right:clamp(10px,1.6vw,20px);bottom:4px;height:2px;
  background:var(--c-lime);
}
.site-header[data-edition="cn"] .nav-link[aria-current="page"]{color:var(--c-orange)}
.site-header[data-edition="cn"] .nav-link[aria-current="page"]::after{background:var(--c-orange)}

.round-bar{display:flex;align-items:stretch;border-top:1px solid var(--c-line);background:var(--c-bg-1)}
.site-header[data-edition="cn"] .round-bar{background:#07231F}
.round-bar__scroll{
  flex:1 1 auto;display:flex;align-items:center;gap:6px;
  padding:8px var(--gutter);
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:thin;scrollbar-color:var(--c-line) transparent;
}
.round-bar__scroll::-webkit-scrollbar{height:4px}
.round-bar__scroll::-webkit-scrollbar-thumb{background:var(--c-line)}
.round-chip{
  scroll-snap-align:start;flex:0 0 auto;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:5px 12px;border:1px solid var(--c-line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--c-gray);
  clip-path:polygon(var(--cut-s) 0,100% 0,100% calc(100% - var(--cut-s)),calc(100% - var(--cut-s)) 100%,0 100%,0 var(--cut-s));
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.round-chip:hover{color:var(--c-white);border-color:var(--c-lime)}
.round-chip[data-current="true"]{background:var(--c-lime);border-color:var(--c-lime);color:#06110E;font-weight:700}
.site-header[data-edition="cn"] .round-chip[data-current="true"]{background:var(--c-orange);border-color:var(--c-orange)}
.round-chip__no{font-variant-numeric:tabular-nums}
.round-chip__label{font-family:var(--font-body);font-size:11px;letter-spacing:.08em;opacity:.78}
.round-bar__version{
  flex:0 0 auto;display:flex;align-items:center;
  padding:8px 14px;border-left:1px solid var(--c-line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--c-gray);white-space:nowrap;
}
.header-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-lime);transform:scaleX(0);transform-origin:0 50%;
  pointer-events:none;
}
.site-header[data-edition="cn"] .header-progress{background:var(--c-orange)}

.site-header[data-compact] .header-top__inner{padding-block:3px}
.site-header[data-compact] .masthead{padding-block:6px}
.site-header[data-compact] .masthead__name{font-size:clamp(20px,2.6vw,28px)}
.site-header[data-compact] .masthead__sub{display:none}
.site-header[data-compact] .round-bar__scroll{padding-block:6px}

/* ---------- 正文容器与通用排版 ---------- */
.main-content{display:block;padding-bottom:clamp(24px,4vw,48px)}
.main-content:focus{outline:none}
.container{width:100%;max-width:var(--w-max);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,6vw,72px)}
.section--tight{padding-block:clamp(24px,3vw,40px)}
.stack{display:flex;flex-direction:column;gap:12px}
.stack--lg{gap:clamp(20px,3vw,32px)}
.display{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:clamp(40px,8vw,96px);line-height:.92;letter-spacing:-.02em;
}
.h2{font-size:clamp(24px,3.4vw,36px);letter-spacing:-.01em}
.h3{font-size:clamp(17px,2vw,20px);font-weight:600}
.lead{font-size:clamp(15px,1.35vw,17px);color:#D6E3DA;line-height:1.8}
.muted{color:var(--c-gray)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--c-lime);
}
.eyebrow::before{content:"";width:18px;height:2px;background:currentColor}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;font-size:14px;font-weight:700;letter-spacing:.06em;
  background:var(--c-lime);color:#06110E;border:1px solid var(--c-lime);
  clip-path:polygon(var(--cut-s) 0,100% 0,100% calc(100% - var(--cut-s)),calc(100% - var(--cut-s)) 100%,0 100%,0 var(--cut-s));
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{background:#D8FF6E;border-color:#D8FF6E}
.btn:focus-visible{outline:2px solid var(--c-white);outline-offset:-3px}
.btn--ghost{background:transparent;color:var(--c-lime);border-color:rgba(200,255,61,.55)}
.btn--ghost:hover{background:rgba(200,255,61,.12);color:var(--c-white);border-color:var(--c-lime)}
.btn--orange{background:var(--c-orange);border-color:var(--c-orange);color:#06110E}
.btn--orange:hover{background:#FF8352;border-color:#FF8352}

/* ---------- 面板 / 标签 ---------- */
.panel{
  position:relative;background:var(--c-bg-2);border:1px solid var(--c-line);
  padding:clamp(16px,2vw,24px);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.panel--focus{
  background:linear-gradient(155deg,var(--c-bg-1) 0%,var(--c-bg-2) 70%);
  border-color:rgba(200,255,61,.42);
}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 8px;border:1px solid var(--c-line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--c-gray);
}
.tag--live{background:var(--c-lime);border-color:var(--c-lime);color:#06110E;font-weight:700}
.tag--archive{color:var(--c-amber);border-color:rgba(255,201,74,.5)}

/* ---------- 栅格 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(12px,2vw,24px)}
.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}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;overflow:hidden;display:block;
  aspect-ratio:16/10;
  background:linear-gradient(140deg,#0B1F18 0%,#122E24 58%,#1E6B58 100%);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.media img{width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(0deg,rgba(6,17,14,.55) 0 1px,transparent 1px 4px);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:10px 14px;font-size:12px;letter-spacing:.06em;color:var(--c-gray);
  background:linear-gradient(transparent,rgba(6,17,14,.92));
}

/* ---------- 面包屑 ---------- */
.breadcrumbs{font-size:12px;letter-spacing:.06em;color:var(--c-gray)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;max-width:none}
.breadcrumbs li+li::before{content:"/";margin-right:8px;color:var(--c-line)}
.breadcrumbs a:hover{color:var(--c-lime)}
.breadcrumbs [aria-current="page"]{color:var(--c-white)}

/* ---------- 数据表 ---------- */
.data-table{width:100%;font-size:14px}
.data-table caption{text-align:left;font-size:12px;letter-spacing:.1em;color:var(--c-gray);padding-bottom:10px}
.data-table th,.data-table td{padding:10px 12px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.data-table thead th{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--c-gray);border-bottom-color:rgba(200,255,61,.3);white-space:nowrap;
}
.data-table tbody tr:nth-child(even){background:var(--c-bg-2)}
.data-table td.num{text-align:right}
.data-table [data-archive]{color:var(--c-amber)}

/* ---------- 折叠面板 ---------- */
.accordion{border-top:1px solid var(--c-line)}
.accordion__item{border-bottom:1px solid var(--c-line)}
.accordion__trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 4px;text-align:left;font-size:15px;font-weight:600;color:var(--c-white);
}
.accordion__trigger::after{content:"+";font-family:var(--font-mono);font-size:18px;color:var(--c-lime)}
.accordion__trigger[aria-expanded="true"]::after{content:"–"}
.accordion__panel{padding:0 4px 18px;font-size:14px;color:var(--c-gray)}
.accordion__panel[hidden]{display:none}

/* ---------- 标签页 ---------- */
.tabs__list{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--c-line);scrollbar-width:thin}
.tabs__btn{
  padding:10px 16px;font-size:13px;letter-spacing:.1em;color:var(--c-gray);
  border-bottom:2px solid transparent;white-space:nowrap;transition:color .18s ease,background .18s ease;
}
.tabs__btn:hover{color:var(--c-white)}
.tabs__btn[aria-selected="true"]{color:var(--c-lime);border-bottom-color:var(--c-lime);background:rgba(200,255,61,.07)}
.tabs__panel{padding-top:clamp(16px,2.4vw,28px)}
.tabs__panel[hidden]{display:none}

/* ---------- 显现 ---------- */
[data-reveal].is-armed{opacity:0;transform:translateY(14px);transition:opacity .32s ease,transform .32s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--c-bg-1);
  border-top:1px solid var(--c-line);
  margin-top:clamp(48px,8vw,96px);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,var(--c-lime) 0%,rgba(200,255,61,0) 46%,rgba(255,107,44,.75) 100%);
}
.footer-main{
  max-width:var(--w-max);margin-inline:auto;
  padding:clamp(32px,5vw,64px) var(--gutter) clamp(24px,4vw,48px);
  display:grid;grid-template-columns:1.5fr .9fr .9fr 1.3fr;gap:clamp(24px,3.5vw,48px);
}
.footer-brand__name{
  font-family:var(--font-display);font-weight:700;text-transform:uppercase;
  font-size:clamp(24px,2.6vw,32px);line-height:1;letter-spacing:-.02em;color:var(--c-white);
}
.footer-brand__cn{font-size:15px;letter-spacing:.24em;color:var(--c-lime);vertical-align:middle}
.footer-brand__tagline{margin-top:12px;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--c-gray)}
.footer-icp{
  margin-top:18px;padding-left:10px;border-left:2px solid var(--c-teal);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--c-gray);
}
.footer-col__title{
  margin-bottom:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--c-lime);font-weight:600;
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-link{font-size:14px;color:#C6D6CC;transition:color .18s ease,padding-left .18s ease}
.footer-link:hover{color:var(--c-lime);padding-left:6px}
.footer-contact__row{display:flex;align-items:baseline;gap:10px;margin-bottom:10px;font-size:13px}
.footer-contact__label{
  flex:0 0 34px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:#7FBFA8;
}
.footer-contact__value{color:#D6E3DA;min-width:0}
.footer-note{
  margin-top:14px;padding-top:12px;border-top:1px dashed var(--c-line);
  font-size:12px;line-height:1.65;color:var(--c-gray);
}
.footer-legal{border-top:1px solid var(--c-line)}
.footer-legal__inner{
  max-width:var(--w-max);margin-inline:auto;
  padding:16px var(--gutter);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:12px;letter-spacing:.06em;color:var(--c-gray);
}
.footer-legal__copy,.footer-legal__meta{font-family:var(--font-mono);max-width:none}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .header-top__meta{display:none}
  .edition-switch{margin-left:0}
  .header-top__inner{justify-content:space-between}
  .masthead__rule{display:none}
  .site-nav{
    display:none;
    max-width:none;
    padding:0;
    border-top:1px solid var(--c-line);
    background:var(--c-bg-1);
  }
  .site-header[data-nav-open] .site-nav{display:block}
  .nav-list{flex-direction:column}
  .nav-list__item+.nav-list__item{border-left:0;border-top:1px solid var(--c-line)}
  .nav-link{padding:14px var(--gutter);font-size:15px}
  .nav-link[aria-current="page"]::after{left:var(--gutter);right:auto;width:28px;bottom:8px}
  .grid-12 .col-4,.grid-12 .col-5,.grid-12 .col-7,.grid-12 .col-8{grid-column:span 6}
  .grid-12 .col-6{grid-column:span 12}
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:760px){
  .round-bar__version{display:none}
  .round-bar__scroll{padding-block:7px}
}
@media (max-width:600px){
  .masthead__sub{display:none}
  .masthead__brand{gap:8px}
  .grid-12>*{grid-column:span 12}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-legal__inner{flex-direction:column;align-items:flex-start}
  .btn{width:100%;justify-content:center}
}
@media (min-width:901px){
  .nav-toggle{display:none}
}

/* ---------- 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;
  }
  [data-reveal].is-armed{opacity:1;transform:none;transition:none}
}