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

:root{
  --ink:#0A0D0B;
  --ink-2:#151B18;
  --ink-3:#1E2622;
  --grn:#B8FF3C;
  --grn-deep:#7FB824;
  --org:#FF6A1F;
  --ice:#6FD8FF;
  --paper:#F2EFE6;
  --paper-2:#E6E1D3;
  --paper-ink:#101210;
  --gray:#C6CFC8;
  --gray-dim:#8C978F;
  --red:#FF4D4D;
  --line:rgba(184,255,60,.30);
  --line-soft:rgba(198,207,200,.14);
  --rail-w:88px;
  --tabbar-h:62px;
  --maxw:1320px;
  --font-display:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --ease:cubic-bezier(.2,.8,.2,1);
}

body{
  background:var(--ink);
  color:var(--gray);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  overflow-x:hidden;
}
@media (min-width:900px){body{padding-left:var(--rail-w)}}
@media (max-width:899px){body{padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom))}}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;color:#fff;line-height:1.08;letter-spacing:-.015em}
h1{font-size:clamp(34px,5.4vw,72px)}
h2{font-size:clamp(26px,3.6vw,48px)}
h3{font-size:clamp(19px,2.2vw,27px)}
strong{color:#fff;font-weight:800}
::selection{background:var(--grn);color:var(--paper-ink)}

:focus-visible{outline:2px solid var(--grn);outline-offset:3px;border-radius:0}

/* ===== 布局容器 ===== */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,4vw,48px)}
.wrap--wide{max-width:1600px}
.wrap--narrow{max-width:780px}
.section{padding-block:clamp(40px,7vw,96px)}
.section--paper{background:var(--paper);color:var(--paper-ink)}
.section--paper h1,.section--paper h2,.section--paper h3,.section--paper h4{color:var(--paper-ink)}
.section--paper .prose{color:var(--paper-ink)}
.section--graphite{background:var(--ink-2)}
.prose{max-width:70ch;display:block}
.prose p+p{margin-top:1em}
.prose a{border-bottom:1px solid var(--line);color:var(--grn)}
.prose a:hover{border-bottom-color:var(--grn)}

.grid{display:grid;gap:clamp(14px,2vw,24px)}
.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--12{grid-template-columns:repeat(12,minmax(0,1fr))}
@media (max-width:1023px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr))}
}
@media (max-width:599px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
}

.rule{height:1px;background:var(--line-soft);border:0;margin-block:clamp(24px,4vw,48px)}
.rule--diagonal{
  height:44px;border:0;
  background-image:repeating-linear-gradient(102deg,rgba(184,255,60,.34) 0 1px,transparent 1px 14px);
  border-block:1px solid rgba(184,255,60,.28);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:13px;letter-spacing:.22em;
  color:var(--grn);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grn);display:block}
.section--paper .eyebrow{color:var(--grn-deep)}
.section--paper .eyebrow::before{background:var(--grn-deep)}

/* ===== 切角面板 ===== */
.cut{
  --cut:12px;
  --cut-pad:0px;
  --cut-edge:transparent;
  --cut-bg:var(--ink-2);
  --cut-clip:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  position:relative;
  isolation:isolate;
  clip-path:var(--cut-clip);
  background:var(--cut-edge);
  padding:calc(1px + var(--cut-pad));
}
.cut::before{
  content:"";
  position:absolute;
  inset:1px;
  z-index:-1;
  background:var(--cut-bg);
  clip-path:var(--cut-clip);
}
.panel{
  background:var(--ink-2);
  border:1px solid var(--line-soft);
  padding:clamp(16px,2.4vw,28px);
}
.panel:hover{border-color:var(--line)}
.tag{
  display:inline-block;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--ice);
  border-left:2px solid var(--grn);
  padding:2px 0 2px 8px;
}
.tag--org{color:var(--org);border-left-color:var(--org)}
.tag--red{color:var(--red);border-left-color:var(--red)}
.num{font-family:var(--font-mono);letter-spacing:.02em;font-variant-numeric:tabular-nums}
.stat{font-family:var(--font-mono);font-size:clamp(30px,5vw,68px);line-height:1;color:#fff;letter-spacing:-.01em}
.num-outline{color:transparent;-webkit-text-stroke:1px var(--grn);text-shadow:0 0 16px rgba(184,255,60,.32)}

/* ===== 图片容器 ===== */
.media{
  position:relative;display:block;overflow:hidden;
  background:linear-gradient(120deg,var(--ink-3),var(--ink-2));
  aspect-ratio:16/9;width:100%;
}
.media--3x2{aspect-ratio:3/2}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--wide{aspect-ratio:21/9}
.media__img{width:100%;height:100%;object-fit:cover;object-position:center 30%;transition:transform .5s var(--ease)}
.media:hover .media__img{transform:scale(1.03)}
.media__cap{
  position:absolute;left:0;bottom:0;right:0;
  padding:18px 16px 12px;
  font-family:var(--font-serif);font-size:13px;line-height:1.5;
  color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(10,13,11,.88));
}
.media--dot::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(184,255,60,.22) 1px,transparent 1px);
  background-size:8px 8px;opacity:.55;
}
.media--scan::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(10,13,11,.35) 0 1px,transparent 1px 4px);
}
.media--cut{clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px))}

/* ===== 按钮 ===== */
.btn{
  --btn-clip:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  font-size:14px;font-weight:800;letter-spacing:.04em;line-height:1.2;
  border:1px solid transparent;
  clip-path:var(--btn-clip);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:active{transform:translateY(2px)}
.btn--accent{background:var(--org);color:#180802}
.btn--accent:hover{background:#FF8340;color:#180802}
.btn--ghost{background:transparent;color:var(--grn);border-color:var(--grn)}
.btn--ghost:hover{background:rgba(184,255,60,.12);color:var(--grn)}
.btn--quiet{background:rgba(198,207,200,.10);color:var(--gray)}
.btn--quiet:hover{background:rgba(198,207,200,.18);color:#fff}
.btn--block{width:100%}

/* ===== 面包屑 ===== */
.breadcrumb{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--gray-dim)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__link{color:var(--gray);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--grn);border-bottom-color:var(--grn)}
.breadcrumb__sep{color:var(--gray-dim)}
.breadcrumb__current{color:var(--ice)}

/* ===== 跳转链接 ===== */
.skip-link{
  position:fixed;left:50%;top:-70px;transform:translateX(-50%);
  z-index:300;
  padding:10px 20px;
  background:var(--grn);color:var(--paper-ink);
  font-size:14px;font-weight:800;letter-spacing:.04em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:10px}

/* ===== 头部：侧边轨道 ===== */
.site-header{
  position:fixed;left:0;top:0;bottom:0;
  width:var(--rail-w);
  z-index:80;
  background:var(--ink-2);
  border-right:1px solid var(--line-soft);
}
.rail{
  display:flex;flex-direction:column;gap:16px;
  height:100%;
  padding:16px 9px calc(16px + env(safe-area-inset-bottom));
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;
  background:
    linear-gradient(180deg,rgba(184,255,60,.06),transparent 180px),
    var(--ink-2);
}
.rail::-webkit-scrollbar{display:none}
.rail__brand{
  display:block;text-align:center;
  padding:8px 2px 14px;
  border-bottom:1px solid var(--line);
  transition:opacity .18s var(--ease);
}
.rail__brand:hover{opacity:.82}
.rail__brand-cn{
  display:block;
  font-family:var(--font-display);font-weight:900;
  font-size:16px;line-height:1.15;letter-spacing:.06em;color:var(--grn);
}
.rail__brand-en{
  display:block;margin-top:5px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.3em;color:var(--gray-dim);
}
.rail__brand-line{
  display:block;margin-top:9px;
  font-family:var(--font-serif);font-size:11px;line-height:1.5;color:var(--gray);
}
.rail__nav{flex:0 0 auto}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-item{display:block}
.nav-link{
  display:flex;flex-direction:column;gap:3px;
  padding:9px 6px;
  border-left:2px solid transparent;
  color:var(--gray);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--grn);border-left-color:rgba(184,255,60,.55);transform:translateX(2px)}
.nav-link[aria-current="page"]{color:#fff;border-left-color:var(--grn);background:rgba(184,255,60,.08)}
.nav-link__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--gray-dim)}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--grn)}
.nav-link__label{font-size:12.5px;font-weight:700;letter-spacing:.04em;line-height:1.3}
.rail__season{border-top:1px dashed var(--line-soft);padding-top:12px}
.rail__season-title{
  font-family:var(--font-serif);font-size:11px;letter-spacing:.22em;
  color:var(--gray-dim);margin-bottom:8px;
}
.season-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
.season-chip{
  --chip-clip:polygon(0 0,calc(100% - 6px) 0,100% 6px,100% 100%,6px 100%,0 calc(100% - 6px));
  font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;
  padding:6px 0;text-align:center;
  color:var(--gray-dim);
  border:1px solid rgba(198,207,200,.18);
  clip-path:var(--chip-clip);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.season-chip:hover{color:var(--grn);border-color:rgba(184,255,60,.6)}
.season-chip[aria-pressed="true"]{
  color:var(--grn);border-color:var(--grn);
  background:rgba(184,255,60,.10);
}
.rail__foot{
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-direction:column;gap:10px;
}
.rail__quick{display:flex;flex-direction:column;gap:6px}
.quick-link{
  display:block;font-size:11.5px;line-height:1.5;color:var(--gray-dim);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.quick-link:hover{color:var(--ice);border-bottom-color:var(--ice)}
.rail .btn{width:100%;padding:9px 6px;font-size:11.5px;letter-spacing:.02em}

.rail-progress{
  position:fixed;left:calc(var(--rail-w) - 3px);top:0;
  width:3px;height:100vh;height:100dvh;
  z-index:79;background:rgba(198,207,200,.08);
}
.rail-progress__fill{
  display:block;width:100%;height:0;
  background:linear-gradient(180deg,var(--grn),var(--ice));
  transition:height .08s linear;
}
@media (max-width:899px){.rail-progress{display:none}}

/* 移动端 tabbar */
.tabbar{display:none}
.scrim{
  position:fixed;inset:0;z-index:76;
  background:rgba(4,6,5,.7);
  opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease);
}
.scrim[data-visible]{opacity:1;pointer-events:auto}

@media (max-width:899px){
  .site-header{position:static;width:auto;background:none;border-right:0}
  .rail{
    position:fixed;left:0;right:0;bottom:0;top:auto;
    height:auto;max-height:88vh;max-height:88dvh;
    z-index:78;
    transform:translateY(102%);
    transition:transform .26s var(--ease);
    background:var(--ink-2);
    border-top:1px solid var(--grn);
    padding:18px 18px calc(var(--tabbar-h) + 18px + env(safe-area-inset-bottom));
    gap:14px;
    box-shadow:0 -18px 40px rgba(0,0,0,.55);
  }
  .rail[data-open]{transform:translateY(0)}
  .rail__brand{text-align:left;display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;padding:0 0 14px}
  .rail__brand-line{margin-top:0;width:100%}
  .nav-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .nav-link{
    flex-direction:row;align-items:baseline;gap:8px;
    border-left:0;border-bottom:1px solid var(--line-soft);
    padding:11px 10px;
  }
  .nav-link:hover{transform:none;border-bottom-color:rgba(184,255,60,.55)}
  .nav-link[aria-current="page"]{
    border-left:0;border-bottom-color:var(--grn);
    background:rgba(184,255,60,.10);
  }
  .rail__season{padding-top:10px}
  .season-switch{
    display:flex;gap:8px;
    overflow-x:auto;padding-bottom:6px;
    scrollbar-width:none;-webkit-overflow-scrolling:touch;
  }
  .season-switch::-webkit-scrollbar{display:none}
  .season-chip{flex:0 0 auto;min-width:66px;padding:8px 14px;font-size:12px}
  .rail__foot{margin-top:0;flex-direction:column}
  .rail__quick{flex-direction:row;flex-wrap:wrap;gap:8px 18px}
  .quick-link{font-size:12.5px;color:var(--gray)}
  .rail .btn{padding:13px 10px;font-size:13.5px}

  .tabbar{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:82;
    padding:8px 14px calc(8px + env(safe-area-inset-bottom));
    min-height:var(--tabbar-h);
    background:rgba(10,13,11,.94);
    backdrop-filter:blur(10px);
    border-top:1px solid rgba(184,255,60,.30);
  }
  .tabbar__brand{display:flex;align-items:baseline;gap:5px}
  .tabbar__brand-mark{
    font-family:var(--font-display);font-weight:900;font-size:15px;
    letter-spacing:.04em;color:var(--grn);
  }
  .tabbar__brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--gray-dim)}
  .tabbar__season{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 14px;
    border:1px solid var(--line);
    clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
    transition:border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .tabbar__season:hover{border-color:var(--grn);background:rgba(184,255,60,.10)}
  .tabbar__season-label{font-family:var(--font-serif);font-size:12px;letter-spacing:.14em;color:var(--gray-dim)}
  .tabbar__season-value{font-family:var(--font-mono);font-size:13px;color:var(--grn);letter-spacing:.04em}
  .tabbar__toggle{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 14px 7px 12px;
    background:rgba(184,255,60,.10);
    border:1px solid var(--line);
    clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
    transition:background-color .18s var(--ease),border-color .18s var(--ease);
  }
  .tabbar__toggle:hover{background:rgba(184,255,60,.18);border-color:var(--grn)}
  .tabbar__toggle[aria-expanded="true"]{background:var(--grn);border-color:var(--grn);color:var(--paper-ink)}
  .tabbar__toggle[aria-expanded="true"] .tabbar__toggle-text{color:var(--paper-ink)}
  .tabbar__bars{display:flex;flex-direction:column;gap:3px;width:15px}
  .tabbar__bars i{display:block;height:1.5px;background:currentColor;transition:width .18s var(--ease)}
  .tabbar__bars i:nth-child(2){width:11px}
  .tabbar__toggle[aria-expanded="true"] .tabbar__bars i{background:var(--paper-ink)}
  .tabbar__toggle[aria-expanded="true"] .tabbar__bars i:nth-child(2){width:15px}
  .tabbar__toggle-text{font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--grn)}
  body.is-nav-open{overflow:hidden}
}

/* ===== 页脚：纸白收尾 ===== */
.site-footer{
  position:relative;
  background:var(--ink);
  padding:0 clamp(12px,3vw,32px) clamp(24px,4vw,48px);
  margin-top:clamp(48px,8vw,110px);
}
.footer__diagonal{
  height:42px;
  background-image:repeating-linear-gradient(102deg,rgba(184,255,60,.30) 0 1px,transparent 1px 14px);
  border-bottom:1px solid rgba(184,255,60,.28);
  margin-bottom:clamp(18px,3vw,32px);
}
.footer__panel{
  --cut:18px;
  --cut-pad:clamp(24px,4vw,52px);
  --cut-edge:rgba(184,255,60,.55);
  --cut-bg:var(--paper);
  max-width:1360px;
  margin-inline:auto;
  color:var(--paper-ink);
}
.footer__top{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.65fr);
  gap:clamp(24px,4vw,64px);
}
.footer__brand-cn{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(26px,3.6vw,46px);line-height:1;letter-spacing:-.02em;
  color:var(--paper-ink);
}
.footer__brand-line{
  margin-top:12px;font-family:var(--font-serif);font-size:14px;
  letter-spacing:.06em;color:rgba(16,18,16,.62);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;padding:9px 16px;
  font-size:13px;font-weight:800;letter-spacing:.06em;
  color:var(--paper-ink);
  border:1px solid rgba(16,18,16,.22);
  clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px));
  transition:background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{background:var(--grn);border-color:var(--grn-deep)}
.to-top:active{transform:translateY(2px)}
.to-top__arrow{font-family:var(--font-mono);font-size:14px}
.footer__grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));
  gap:clamp(16px,3vw,32px);
}
.footer__title{
  font-family:var(--font-serif);font-size:13px;font-weight:600;
  letter-spacing:.2em;color:rgba(16,18,16,.55);
  padding-bottom:10px;margin-bottom:12px;
  border-bottom:1px solid rgba(16,18,16,.14);
}
.footer__links{display:flex;flex-direction:column;gap:9px}
.footer__link{
  font-size:15px;font-weight:700;color:var(--paper-ink);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s var(--ease),border-color .18s var(--ease),padding-left .18s var(--ease);
}
.footer__link:hover{color:var(--grn-deep);border-bottom-color:var(--grn-deep);padding-left:3px}
.footer__contact{
  margin-top:clamp(24px,3.5vw,44px);
  padding-top:clamp(16px,2.4vw,26px);
  border-top:1px solid rgba(16,18,16,.16);
}
.footer__contact-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.03em;
  color:var(--paper-ink);
}
.footer__contact-mail{color:var(--grn-deep);font-weight:600}
.footer__contact-tel{font-weight:600}
.footer__contact-addr{color:rgba(16,18,16,.7)}
.footer__sep{color:rgba(16,18,16,.3)}
.footer__note{margin-top:10px;font-size:13px;color:rgba(16,18,16,.6)}
.footer__legal{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;
  margin-top:clamp(20px,3vw,34px);
  padding-top:16px;
  border-top:1px dashed rgba(16,18,16,.24);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:rgba(16,18,16,.6);
}
.footer__copy,.footer__icp{font-family:var(--font-mono)}

@media (max-width:899px){
  .footer__top{grid-template-columns:minmax(0,1fr)}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__legal{flex-direction:column;gap:6px}
}

@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;
  }
  .media:hover .media__img{transform:none}
}