/* =========================================================
   慧星体育赛事 · /assets/site.css
   共享层：reset / tokens / 排版 / 页头 / 页脚 / 基础组件
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
input,select,textarea{font:inherit}

/* ---------- 2. Tokens ---------- */
:root{
  --void:#061423;
  --nebula:#0D2238;
  --paper:#F2E9DA;
  --flame:#FF6B2C;
  --comet:#35D6C0;
  --laser:#F4FF6B;
  --coral:#FF5F5F;
  --steel:#9DB2C9;
  --violet:#7B61FF;
  --black:#03080E;

  --text:#E7EEF6;
  --text-dim:#C8D6E5;
  --line:rgba(157,178,201,.22);
  --line-strong:rgba(157,178,201,.42);

  --font-display:"Barlow Condensed","Noto Sans SC","Arial Narrow","PingFang SC",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,"Courier New",monospace;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;

  --gutter:clamp(1rem,4vw,2.5rem);
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-1:0 24px 60px -40px rgba(3,8,14,.95);
  --shadow-lift:0 30px 70px -42px rgba(3,8,14,1);
}

/* ---------- 3. Base / 中文排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--void);
  background-image:
    radial-gradient(900px 520px at 10% -12%,rgba(53,214,192,.16),transparent 62%),
    radial-gradient(760px 460px at 94% 2%,rgba(255,107,44,.14),transparent 60%),
    radial-gradient(1100px 680px at 50% 118%,rgba(123,97,255,.12),transparent 66%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.14;letter-spacing:.02em;color:var(--paper)}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:clamp(1.15rem,2vw,1.45rem)}
p{text-wrap:pretty}
strong,b{font-weight:700;color:var(--paper)}
::selection{background:var(--flame);color:#1a0a02}

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

/* ---------- 4. Layout ---------- */
.wrap{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.grid{
  display:grid;
  gap:clamp(1rem,2vw,1.5rem);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.grid > .col-3{grid-column:span 3}
.grid > .col-4{grid-column:span 4}
.grid > .col-6{grid-column:span 6}
.grid > .col-8{grid-column:span 8}
.grid > .col-12{grid-column:span 12}

/* ---------- 5. Skip link ---------- */
.skip-link{
  position:fixed;
  top:.5rem;
  left:.5rem;
  z-index:300;
  padding:.62rem 1.05rem;
  border-radius:8px;
  background:var(--laser);
  color:var(--black);
  font-family:var(--font-body);
  font-weight:700;
  font-size:.9rem;
  transform:translateY(-180%);
  transition:transform .18s ease;
}
.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--void);outline-offset:2px}

/* ---------- 6. 滚动进度（彗尾） ---------- */
.site-progress{
  position:fixed;
  inset:0 0 auto 0;
  height:3px;
  z-index:120;
  pointer-events:none;
  background:rgba(157,178,201,.12);
}
.site-progress__bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(var(--progress,0));
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--comet),var(--flame) 58%,var(--laser));
  box-shadow:0 0 12px rgba(255,107,44,.55);
  transition:transform .12s linear;
}

/* ---------- 7. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:linear-gradient(180deg,rgba(6,20,35,.98),rgba(6,20,35,.93));
  border-bottom:1px solid var(--line);
  box-shadow:0 22px 50px -42px #000;
}

.site-topbar{
  background:var(--black);
  border-bottom:1px solid rgba(53,214,192,.18);
}
.site-topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.35rem 1rem;
  padding-block:.34rem;
}
.site-topbar__item{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.14em;
  color:var(--steel);
  line-height:1.4;
}
.dot{
  width:6px;
  height:6px;
  border-radius:50%;
  flex:none;
  display:inline-block;
}
.dot--teal{background:var(--comet);box-shadow:0 0 8px rgba(53,214,192,.9)}
.dot--orange{background:var(--flame);box-shadow:0 0 8px rgba(255,107,44,.9)}

.site-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(.75rem,2vw,1.75rem);
  min-height:64px;
  padding-block:.7rem;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:.7rem;
  flex:none;
  min-height:44px;
}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  flex:none;
  border-radius:50%;
  border:1px solid rgba(53,214,192,.5);
  background:radial-gradient(circle at 32% 28%,rgba(53,214,192,.45),rgba(13,34,56,.95) 64%,rgba(6,20,35,.6) 100%);
}
.brand__core{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--laser);
  box-shadow:0 0 12px rgba(244,255,107,.85);
}
.brand__trail{
  position:absolute;
  left:-7px;
  bottom:6px;
  width:30px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,transparent,rgba(53,214,192,.85));
  transform:rotate(-32deg);
  transform-origin:right center;
}
.brand__text{display:grid;gap:.12rem}
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.12rem;
  letter-spacing:.06em;
  line-height:1.1;
  color:var(--paper);
}
.brand__line{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.2em;
  color:var(--steel);
  line-height:1.3;
}
.brand:hover .brand__name{color:var(--flame)}
.brand:hover .brand__mark{border-color:rgba(255,107,44,.6)}

/* 导航 */
.nav{
  display:flex;
  align-items:center;
  gap:clamp(.4rem,1.4vw,1rem);
  margin-left:auto;
}
.nav__list{
  display:flex;
  align-items:center;
  gap:.15rem;
  flex-wrap:wrap;
}
.nav__item{display:block}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:.5rem .6rem;
  border-radius:8px;
  font-size:.94rem;
  font-weight:500;
  color:var(--text-dim);
  white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.nav__link::after{
  content:"";
  position:absolute;
  left:.6rem;
  right:.6rem;
  bottom:.24rem;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--flame),var(--laser));
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .22s ease;
}
.nav__link:hover{color:var(--paper);background:rgba(255,255,255,.05)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{
  color:var(--flame);
  background:rgba(255,107,44,.12);
}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}
.nav__cta{flex:none;margin-left:.35rem}

/* 移动按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  padding:.5rem .8rem;
  border:1px solid var(--line-strong);
  border-radius:999px;
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars > span{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle[data-open]{
  color:var(--flame);
  border-color:rgba(255,107,44,.6);
  background:rgba(255,107,44,.14);
}
.nav-toggle[data-open] .nav-toggle__bars > span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[data-open] .nav-toggle__bars > span:nth-child(2){opacity:0}
.nav-toggle[data-open] .nav-toggle__bars > span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,6vw,5.5rem);
  color:var(--steel);
  background:linear-gradient(180deg,rgba(3,8,14,.55),var(--black) 42%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:min(420px,62%);
  height:2px;
  background:linear-gradient(90deg,var(--comet),var(--flame),transparent);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,2fr);
  gap:clamp(1.5rem,4vw,3rem);
  padding-block:clamp(2rem,5vw,3.4rem) clamp(1.5rem,3vw,2.2rem);
}
.site-footer__brand{display:grid;gap:.55rem;align-content:start;justify-items:start}
.footer-brand{
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.5rem;
  letter-spacing:.08em;
  color:var(--paper);
  line-height:1.1;
}
.footer-tagline{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  color:var(--comet);
}
.footer-blurb{
  max-width:34ch;
  font-family:var(--font-serif);
  font-size:.92rem;
  line-height:1.85;
  color:rgba(157,178,201,.92);
}
.footer-cta{margin-top:.5rem}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(1rem,3vw,2rem);
  align-content:start;
}
.footer-col__title{
  position:relative;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--paper);
  padding-bottom:.6rem;
  margin-bottom:.7rem;
  border-bottom:1px solid var(--line);
}
.footer-col__title::before{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:22px;
  height:2px;
  background:var(--flame);
}
.footer-col__list{display:grid;gap:.42rem}
.footer-col__link{
  display:inline-block;
  font-size:.9rem;
  color:var(--steel);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-col__link:hover{color:var(--paper);border-bottom-color:var(--comet)}
.site-footer__meta{
  display:grid;
  gap:.4rem;
  padding-block:1.15rem 1.8rem;
  border-top:1px solid rgba(157,178,201,.16);
}
.footer-contact{font-size:.86rem;color:var(--text-dim)}
.footer-tip{font-family:var(--font-serif);font-size:.84rem;color:var(--steel)}
.footer-legal{
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.05em;
  color:rgba(157,178,201,.78);
}

/* ---------- 9. 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.45rem;
  padding:.62rem 1.15rem;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-body);
  font-size:.9rem;
  font-weight:600;
  line-height:1.2;
  white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn--primary{
  background:var(--flame);
  color:#200d02;
  box-shadow:0 10px 26px -16px rgba(255,107,44,.95);
}
.btn--primary:hover{background:#ff8348;box-shadow:0 14px 32px -16px rgba(255,107,44,1)}
.btn--ghost{
  background:rgba(13,34,56,.72);
  border-color:var(--line-strong);
  color:var(--paper);
}
.btn--ghost:hover{border-color:var(--comet);color:var(--comet)}

.panel{
  position:relative;
  padding:clamp(1rem,2vw,1.5rem);
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:rgba(13,34,56,.72);
  box-shadow:var(--shadow-1);
}
.panel--glass{
  background:linear-gradient(150deg,rgba(20,48,74,.66),rgba(6,20,35,.78));
  border-color:rgba(53,214,192,.26);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.panel--paper{
  background:var(--paper);
  border-color:rgba(3,8,14,.14);
  color:#16232f;
}
.panel--paper h1,.panel--paper h2,.panel--paper h3,.panel--paper strong{color:var(--void)}
.panel--focus{
  border-color:rgba(255,107,44,.55);
  background:linear-gradient(160deg,rgba(255,107,44,.14),rgba(13,34,56,.86));
  box-shadow:var(--shadow-lift);
}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0D2238,#061423 58%,#123a4a 100%);
  aspect-ratio:16/9;
  isolation:isolate;
}
.media::before{
  content:"";
  position:absolute;
  inset:auto -20% 18% -20%;
  height:2px;
  background:linear-gradient(90deg,transparent,rgba(53,214,192,.55),transparent);
  transform:rotate(-9deg);
  z-index:0;
}
.media__img{
  position:relative;
  z-index:1;
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media__caption{
  position:absolute;
  z-index:2;
  inset:auto 0 0 0;
  padding:.9rem 1rem .85rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(3,8,14,.9));
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}

.breadcrumb{margin-block:1.1rem .2rem}
.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4rem;
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.07em;
  color:var(--steel);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:.4rem}
.breadcrumb__link{
  color:var(--steel);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.breadcrumb__link:hover{color:var(--paper);border-bottom-color:var(--comet)}
.breadcrumb__sep{color:rgba(157,178,201,.5)}
.breadcrumb__item[aria-current="page"]{color:var(--paper)}

.section-head{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:.5rem 1rem;
  padding-bottom:.7rem;
  margin-bottom:clamp(1rem,2vw,1.6rem);
  border-bottom:1px solid var(--line);
}
.section-num{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:clamp(1.5rem,3vw,2rem);
  line-height:1;
  color:var(--flame);
  letter-spacing:.02em;
}
.section-title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(1.25rem,2.4vw,1.75rem);
  line-height:1.2;
  color:var(--paper);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  color:var(--comet);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--comet);
}
.lede{
  font-family:var(--font-serif);
  font-size:clamp(1rem,1.4vw,1.12rem);
  line-height:1.9;
  color:#DCE7F2;
}
.mono{
  font-family:var(--font-mono);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.2rem .6rem;
  border-radius:999px;
  border:1px solid rgba(53,214,192,.4);
  background:rgba(53,214,192,.12);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.08em;
  color:var(--comet);
  white-space:nowrap;
}
.tag--score{
  border-color:rgba(244,255,107,.5);
  background:rgba(244,255,107,.14);
  color:var(--laser);
}
.tag--alert{
  border-color:rgba(255,95,95,.5);
  background:rgba(255,95,95,.14);
  color:var(--coral);
}
.tilt{display:inline-block;transform:skewX(-4deg)}

/* ---------- 10. 动效开关 ---------- */
.has-reveal [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease,transform .55s ease;
}
.has-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1080px){
  .site-header__inner{flex-wrap:wrap}
}

@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:110;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:.5rem;
    margin:0;
    padding:1.05rem var(--gutter) calc(1.35rem + env(safe-area-inset-bottom,0px));
    max-height:min(80vh,560px);
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(13,34,56,.99),rgba(3,8,14,.99));
    border-top:1px solid rgba(53,214,192,.42);
    border-radius:var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow:0 -30px 70px -34px #000;
    transform:translateY(112%);
    visibility:hidden;
    transition:transform .3s cubic-bezier(.22,.9,.28,1),visibility .3s;
  }
  .nav[data-open]{transform:none;visibility:visible}
  .nav__list{
    counter-reset:navnum;
    flex-direction:column;
    align-items:stretch;
    gap:.1rem;
    flex-wrap:nowrap;
  }
  .nav__item{counter-increment:navnum}
  .nav__link{
    display:flex;
    align-items:center;
    gap:.75rem;
    width:100%;
    padding:.72rem .3rem;
    font-size:1rem;
    border-radius:0;
    border-bottom:1px solid rgba(157,178,201,.14);
    background:none;
  }
  .nav__link::after{display:none}
  .nav__link::before{
    content:"0" counter(navnum);
    font-family:var(--font-mono);
    font-size:.8rem;
    letter-spacing:.06em;
    color:var(--steel);
    min-width:2.2ch;
  }
  .nav__link[aria-current="page"]{background:rgba(255,107,44,.1)}
  .nav__link[aria-current="page"]::before{color:var(--flame)}
  .nav__cta{
    align-self:stretch;
    justify-content:center;
    margin-top:.55rem;
    margin-left:0;
    padding-block:.72rem;
  }
  body[data-nav-lock]{overflow:hidden}
  body[data-nav-lock]::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:90;
    background:rgba(3,8,14,.66);
  }

  .grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid > .col-3,
  .grid > .col-4,
  .grid > .col-6,
  .grid > .col-8{grid-column:span 4}

  .site-footer__inner{grid-template-columns:minmax(0,1fr)}
  .footer-blurb{max-width:none}
}

@media (max-width:720px){
  .site-topbar__item{font-size:.64rem;letter-spacing:.1em}
  .site-header__inner{min-height:58px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact{font-size:.82rem;line-height:1.8}
}

@media (max-width:420px){
  .brand__mark{width:36px;height:36px}
  .brand__name{font-size:1rem}
  .brand__line{font-size:.6rem;letter-spacing:.14em}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .site-progress__bar{transition:none}
  .has-reveal [data-reveal]{opacity:1;transform:none}
}