/* ==========================================================================
   头头体育赛事 · 共享样式 /assets/site.css
   指挥台体系：左轨道 + 居中刊头 + 刻度带 + 深墨绿底 + 荧光青柠定位
   ========================================================================== */

/* ---------- 1 · Tokens ---------- */
:root{
  --ink:#0A1C16;
  --ink-deep:#06110D;
  --grid-line:#1B3A2F;
  --lime:#C8FF4D;
  --orange:#FF5C2B;
  --white:#F4F8F5;
  --carbon:#232B27;
  --mid:#74827B;
  --cyan:#35E0C8;
  --warn:#FFD166;

  --font-display:"Barlow Condensed","Oswald","Arial Narrow","Noto Sans SC","Heiti SC",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",SFMono-Regular,Consolas,"Courier New",monospace;

  --maxw:1240px;
  --gutter:clamp(16px,3.2vw,32px);
  --rail:92px;
  --line:2px solid var(--grid-line);
  --hard-shadow:8px 8px 0 rgba(6,17,13,.9);
  --ease:cubic-bezier(.22,.68,.24,1);
}

/* ---------- 2 · Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd,fieldset{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;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--grid-line);margin:0}
::selection{background:var(--lime);color:var(--ink-deep)}

/* ---------- 3 · 中文排版基线 ---------- */
body{
  font-family:var(--font-body);
  font-size:clamp(.95rem,.9rem + .15vw,1.075rem);
  line-height:1.78;
  letter-spacing:.01em;
  color:var(--white);
  background:var(--ink);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.03em;
  text-wrap:balance;
}
p{text-wrap:pretty}
strong{font-weight:600}

/* ---------- 4 · 焦点与可访问 ---------- */
:where(a,button,summary,input,textarea,select,[tabindex]):focus-visible{
  outline:3px solid var(--lime);
  outline-offset:3px;
  border-radius:2px;
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 5 · 布局容器与栅格 ---------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,6vw,88px)}
.section--light{background:var(--white);color:var(--ink)}
.grid{display:grid;gap:24px}
@media (min-width:760px){
  .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))}
}

/* ---------- 6 · 通用文字零件 ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-mono);font-size:.72rem;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--lime);
}
.num{
  display:block;
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(2.4rem,6vw,4.4rem);line-height:.82;
  letter-spacing:-.04em;color:var(--lime);
}

/* ---------- 7 · 标签 ---------- */
.tag{
  display:inline-block;
  font-family:var(--font-mono);font-size:.68rem;font-weight:600;
  letter-spacing:.13em;text-transform:uppercase;
  padding:3px 9px;border:1px solid currentColor;color:var(--cyan);
}
.tag--lime{background:var(--lime);border-color:var(--lime);color:var(--ink-deep)}
.tag--orange{background:var(--orange);border-color:var(--orange);color:var(--ink-deep)}
.tag--cyan{background:transparent;border-color:var(--cyan);color:var(--cyan)}

/* ---------- 8 · 面板 ---------- */
.panel{
  background:var(--carbon);
  border:var(--line);
  padding:clamp(20px,3vw,32px);
}
.panel--light{background:var(--white);color:var(--ink);border-color:var(--ink)}
.panel--outline{background:transparent;border-color:var(--grid-line)}

/* ---------- 9 · 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.72em 1.15em;
  border:2px solid var(--lime);
  font-family:var(--font-mono);font-weight:700;
  font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--lime);background:transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{background:var(--lime);color:var(--ink-deep);transform:translate(-2px,-2px);box-shadow:4px 4px 0 rgba(200,255,77,.28)}
.btn--lime{background:var(--lime);border-color:var(--lime);color:var(--ink-deep)}
.btn--lime:hover{background:var(--white);border-color:var(--white);color:var(--ink-deep);box-shadow:4px 4px 0 rgba(244,248,245,.24)}
.btn--orange{border-color:var(--orange);color:var(--orange)}
.btn--orange:hover{background:var(--orange);border-color:var(--orange);color:var(--ink-deep);box-shadow:4px 4px 0 rgba(255,92,43,.26)}
.btn--ghost{border-color:var(--grid-line);color:var(--white)}
.btn--ghost:hover{background:var(--carbon);border-color:var(--lime);color:var(--lime);box-shadow:4px 4px 0 rgba(6,17,13,.8)}
.btn--sm{padding:.5em .85em;font-size:.7rem}

/* ---------- 10 · 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5em;
  font-family:var(--font-mono);font-size:.7rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--mid);
}
.crumbs a{color:var(--mid);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--lime)}
.crumbs__sep{color:var(--grid-line)}
.crumbs [aria-current="page"]{color:var(--white)}

/* ---------- 11 · 正文窄栏 ---------- */
.prose{max-width:760px;color:rgba(244,248,245,.86);line-height:1.85}
.prose > * + *{margin-top:1.05em}
.prose h2{
  font-size:clamp(1.45rem,2.6vw,2rem);color:var(--white);
  margin-top:1.9em;padding-top:.7em;border-top:1px solid var(--grid-line);
}
.prose h3{font-size:clamp(1.15rem,1.9vw,1.4rem);color:var(--white);margin-top:1.5em}
.prose strong{color:var(--lime)}
.prose a{color:var(--lime);border-bottom:1px solid rgba(200,255,77,.4)}
.prose a:hover{border-bottom-color:var(--lime)}
.prose ul > li{position:relative;padding-left:1.4em;margin-top:.5em}
.prose ul > li::before{content:"";position:absolute;left:0;top:.78em;width:10px;height:2px;background:var(--lime)}
.prose blockquote{
  border-left:3px solid var(--orange);padding:.4em 0 .4em 1.1em;
  font-family:var(--font-mono);font-size:.88rem;color:var(--mid);
}

/* ---------- 12 · 图片容器基础规则 ---------- */
.fig{
  position:relative;display:block;width:100%;overflow:hidden;
  border:var(--line);
  background:
    linear-gradient(150deg,rgba(53,224,200,.14),rgba(10,28,22,0) 58%),
    repeating-linear-gradient(90deg,rgba(27,58,47,.55) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(0deg,rgba(27,58,47,.55) 0 1px,transparent 1px 40px),
    var(--ink-deep);
}
.fig::after{
  content:"";position:absolute;right:0;bottom:0;width:68px;height:68px;
  background:linear-gradient(135deg,transparent 50%,rgba(200,255,77,.18) 50%);
  pointer-events:none;
}
.fig--wide{aspect-ratio:16/9}
.fig--tall{aspect-ratio:4/5}
.fig--square{aspect-ratio:1/1}
.fig img{width:100%;height:100%;object-fit:cover}
.fig__label{
  position:absolute;left:0;top:0;z-index:2;
  background:var(--lime);color:var(--ink-deep);
  font-family:var(--font-mono);font-size:.66rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;padding:4px 9px;
}
.fig__cap{
  margin-top:8px;font-family:var(--font-mono);font-size:.68rem;
  letter-spacing:.1em;text-transform:uppercase;color:var(--mid);
}

/* ---------- 13 · 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--ink-deep);
  border-bottom:var(--line);
  box-shadow:0 2px 0 rgba(200,255,77,.14);
}
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:200;
  background:var(--lime);color:var(--ink-deep);
  padding:.6em 1em;border:2px solid var(--ink-deep);
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;
  transition:top .16s var(--ease);
}
.skip-link:focus{top:10px}

.masthead{display:grid;grid-template-columns:var(--rail) minmax(0,1fr);background:var(--ink-deep)}
.masthead__rail{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:14px 0 16px;
  border-right:var(--line);
  background:linear-gradient(180deg,rgba(200,255,77,.07),rgba(6,17,13,0) 46%),var(--ink-deep);
}
.rail__mark{
  display:grid;place-items:center;width:44px;height:44px;
  background:var(--lime);color:var(--ink-deep);
  font-family:var(--font-display);font-weight:800;font-size:1.45rem;line-height:1;
  transform:skewY(-6deg);
  box-shadow:4px 4px 0 rgba(200,255,77,.16);
}
.rail__ticks{
  flex:1 1 auto;width:2px;min-height:28px;
  background:repeating-linear-gradient(180deg,var(--grid-line) 0 8px,transparent 8px 16px);
}
.rail__label{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);font-size:.6rem;font-weight:600;
  letter-spacing:.34em;text-transform:uppercase;color:var(--mid);
}

.masthead__core{min-width:0;width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.masthead__bar{
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:clamp(12px,2vw,28px);
  padding-block:16px 14px;
  transition:padding .22s var(--ease);
}
.masthead__utility{
  justify-self:start;
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.68rem;font-weight:500;
  letter-spacing:.1em;color:var(--mid);
}
.dot{
  width:7px;height:7px;flex:none;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 3px rgba(53,224,200,.18);
  animation:dotPulse 2.6s var(--ease) infinite;
}
@keyframes dotPulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.55;transform:scale(.82)}
}

.brand{justify-self:center;display:inline-flex;align-items:center;gap:12px;text-align:left}
.brand__mono{
  display:grid;place-items:center;flex:none;
  width:clamp(38px,4vw,48px);aspect-ratio:1/1;
  background:var(--lime);color:var(--ink-deep);
  font-family:var(--font-display);font-weight:800;
  font-size:1.05rem;letter-spacing:-.02em;
  transform:skewY(-6deg);
  box-shadow:4px 4px 0 rgba(200,255,77,.18);
}
.brand__text{display:flex;flex-direction:column;gap:3px;min-width:0}
.brand__name{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.45rem,3vw,2.35rem);line-height:1;
  letter-spacing:-.035em;color:var(--white);
  transition:font-size .22s var(--ease);
}
.brand__tagline{
  font-family:var(--font-mono);font-size:.64rem;font-weight:500;
  letter-spacing:.2em;color:var(--lime);
}
.masthead__cta{justify-self:end;font-size:.72rem}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;border:2px solid var(--lime);color:var(--lime);
}
.nav-toggle__lines{display:grid;gap:3px;width:18px}
.nav-toggle__lines span{display:block;height:2px;background:currentColor;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle__label{font-family:var(--font-mono);font-size:.7rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.site-header[data-open] .nav-toggle__lines span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__lines span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__lines span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.primary-nav{border-top:1px solid var(--grid-line);background:var(--ink-deep)}
.primary-nav__list{display:flex;flex-wrap:wrap;justify-content:center;counter-reset:nav}
.primary-nav__list > li{display:flex;counter-increment:nav}
.primary-nav__link{
  position:relative;display:flex;align-items:baseline;gap:.55em;
  padding:12px clamp(10px,1.8vw,22px);
  font-size:.95rem;font-weight:500;letter-spacing:.02em;color:var(--white);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.primary-nav__link::before{
  content:counter(nav,decimal-leading-zero);
  font-family:var(--font-mono);font-size:.64rem;font-weight:600;
  letter-spacing:.1em;color:var(--mid);
  transition:color .18s var(--ease);
}
.primary-nav__link::after{
  content:"";position:absolute;left:clamp(10px,1.8vw,22px);right:clamp(10px,1.8vw,22px);bottom:7px;height:3px;
  background:var(--lime);transform:scaleX(0) skewX(-24deg);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.primary-nav__link:hover{color:var(--lime)}
.primary-nav__link:hover::before{color:var(--lime)}
.primary-nav__link:hover::after{transform:scaleX(1) skewX(-24deg)}
.primary-nav__link[aria-current="page"]{
  background:var(--lime);color:var(--ink-deep);
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  padding-inline:calc(clamp(10px,1.8vw,22px) + 6px);
}
.primary-nav__link[aria-current="page"]::before{color:var(--ink-deep);opacity:.7}
.primary-nav__link[aria-current="page"]::after{display:none}

.header-scale{
  position:relative;height:7px;
  background-color:var(--ink-deep);
  background-image:repeating-linear-gradient(90deg,var(--grid-line) 0 1px,transparent 1px 12px);
  border-bottom:1px solid var(--grid-line);
}
.header-scale::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:clamp(64px,12vw,148px);
  background:linear-gradient(90deg,var(--lime),rgba(200,255,77,0));
}
.scroll-progress{
  position:absolute;left:0;bottom:0;z-index:5;
  width:100%;height:3px;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 55%,var(--orange));
  transition:transform .1s linear;
}

.site-header.is-condensed .brand__tagline{display:none}
.site-header.is-condensed .brand__name{font-size:clamp(1.15rem,2.1vw,1.65rem)}
.site-header.is-condensed .masthead__bar{padding-block:10px}

/* ---------- 14 · 页脚 ---------- */
.site-footer{background:var(--ink-deep);border-top:var(--line);color:var(--white);position:relative}
.site-footer::before{
  content:"";display:block;height:6px;
  background-image:repeating-linear-gradient(90deg,var(--orange) 0 2px,transparent 2px 14px);
  opacity:.65;
}
.footer__main{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:clamp(36px,5vw,64px) var(--gutter) clamp(28px,4vw,48px);
  display:grid;gap:clamp(26px,4vw,44px);grid-template-columns:minmax(0,1fr);
}
.footer__brandline{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.3rem,2.4vw,1.9rem);line-height:1.12;letter-spacing:-.03em;color:var(--white);
}
.footer__accent{color:var(--lime)}
.footer__desc{margin-top:14px;max-width:34ch;font-size:.94rem;line-height:1.8;color:rgba(244,248,245,.72)}
.footer__stamp{
  display:flex;align-items:center;gap:10px;margin-top:20px;
  font-family:var(--font-mono);font-size:.68rem;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--mid);
}
.footer__stamp-num{
  font-family:var(--font-display);font-weight:800;font-size:1.7rem;line-height:1;
  color:var(--orange);letter-spacing:-.03em;
}
.footer__cols{display:grid;gap:22px;grid-template-columns:repeat(2,minmax(0,1fr))}
.footer__col{min-width:0}
.footer__heading{
  font-family:var(--font-mono);font-size:.7rem;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--lime);
  margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--grid-line);
}
.footer__list{display:grid;gap:2px}
.footer__link{
  display:inline-block;padding:5px 0;font-size:.92rem;
  color:rgba(244,248,245,.82);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer__link:hover{color:var(--lime);transform:translateX(4px)}

.footer__contact{border-top:1px solid var(--grid-line);padding-top:20px}
.footer__hours{
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  letter-spacing:.12em;color:var(--orange);margin-bottom:6px;
}
.contact-item{
  display:grid;gap:3px;padding:11px 0;
  border-top:1px solid var(--grid-line);
}
.contact-item__label{
  font-family:var(--font-mono);font-size:.64rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--mid);
}
.contact-item__value{color:var(--white)}
.contact-item__value--static{font-size:.9rem;color:rgba(244,248,245,.8)}
.copy-btn{
  display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;
  width:100%;text-align:left;
  font-family:var(--font-mono);font-size:.85rem;font-weight:600;
  letter-spacing:.01em;color:var(--white);
  padding:3px 0;word-break:break-all;
  transition:color .18s var(--ease);
}
.copy-btn:hover{color:var(--lime)}
.copy-btn__state{
  flex:none;padding:2px 7px;
  background:var(--lime);color:var(--ink-deep);
  font-family:var(--font-mono);font-size:.6rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.copy-btn.is-copied .copy-btn__state{background:var(--orange);color:var(--ink-deep)}
.footer__note{margin-top:14px;font-size:.78rem;line-height:1.7;color:var(--mid)}

.footer__base{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:16px var(--gutter) 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  border-top:var(--line);
  font-family:var(--font-mono);font-size:.7rem;font-weight:500;
  letter-spacing:.08em;color:var(--mid);
}
.footer__copy,.footer__legal{margin:0}
.to-top{
  margin-left:auto;padding:7px 13px;
  border:2px solid var(--grid-line);color:var(--lime);
  font-family:var(--font-mono);font-size:.68rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{background:var(--lime);color:var(--ink-deep);border-color:var(--lime);transform:translate(-2px,-2px)}

/* ---------- 15 · 显现协议 ---------- */
.js [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 16 · 平板 ---------- */
@media (min-width:760px){
  .footer__main{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__cols{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer__contact{border-top:0;padding-top:0;border-left:2px solid var(--grid-line);padding-left:clamp(18px,2.5vw,28px)}
}
@media (min-width:900px){
  .brand__tagline{display:block}
}

/* ---------- 17 · 移动 ---------- */
@media (max-width:899px){
  .site-header{position:relative}
  .masthead{grid-template-columns:minmax(0,1fr)}
  .masthead__rail{display:none}
  .masthead__bar{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:"brand toggle" "cta cta";
    row-gap:12px;padding-block:12px;
  }
  .brand{grid-area:brand;justify-self:start;gap:10px}
  .brand__mono{width:36px}
  .brand__name{font-size:clamp(1.25rem,5.4vw,1.6rem)}
  .brand__tagline{letter-spacing:.14em;font-size:.58rem}
  .nav-toggle{grid-area:toggle;display:inline-flex;justify-self:end}
  .masthead__utility{display:none}
  .masthead__cta{grid-area:cta;justify-self:stretch;width:100%;padding-block:.62em}
  .primary-nav{display:none;border-top:1px solid var(--grid-line)}
  .site-header[data-open] .primary-nav{display:block}
  .primary-nav__list{flex-direction:column;justify-content:flex-start}
  .primary-nav__list > li{display:block}
  .primary-nav__link{
    width:100%;padding:14px 0;font-size:1rem;
    border-bottom:1px solid var(--grid-line);
  }
  .primary-nav__link::after{left:0;right:auto;width:22px;bottom:9px}
  .primary-nav__link[aria-current="page"]{
    clip-path:none;padding-inline:12px;
    background:rgba(200,255,77,.12);color:var(--lime);border-left:4px solid var(--lime);
    border-bottom-color:var(--grid-line);
  }
  .primary-nav__link[aria-current="page"]::before{color:var(--lime);opacity:.75}
  .site-header.is-condensed .brand__name{font-size:clamp(1.25rem,5.4vw,1.6rem)}
  .footer__base{row-gap:12px}
  .to-top{margin-left:0;width:100%;justify-content:center;text-align:center}
}

/* ---------- 18 · 桌面 ---------- */
@media (min-width:1080px){
  .footer__main{grid-template-columns:1.12fr 1.68fr 1.05fr}
}

/* ---------- 19 · 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .scroll-progress{transition:none}
}