/* ==========================================================================
   8868体育 · 中文官网  |  全站共享样式  /assets/site.css
   1. Tokens          2. Reset & 中文排版基础     3. 版式与容器
   4. 通用组件        5. 刊头 Header             6. 页脚 Footer
   7. 响应式          8. 动效降级
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --ink-900:#0A1730;
  --ink-800:#0F2247;
  --ink-700:#17325C;
  --ink-600:#1B3A69;
  --paper:#F3EEE2;
  --paper-dim:#E4DCCB;
  --cyan:#1FE0CE;
  --cyan-deep:#12A79A;
  --orange:#FF6A1F;
  --amber:#E8B93C;
  --red:#E0402F;
  --mist:#9CB0CC;
  --line:#2C4A73;
  --line-soft:rgba(44,74,115,.62);
  --line-faint:rgba(44,74,115,.32);

  --heat-1:#123E63;
  --heat-2:#1E8F93;
  --heat-3:#E8B93C;
  --heat-4:#FF6A1F;
  --heat-5:#E0402F;

  --font-display:"Archivo Black","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --font-serif:"Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:240ms;
  --shell-max:1400px;
  --gutter:clamp(1rem,4vw,2.25rem);
}

/* ---------- 2. Reset & 中文排版基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(44,74,115,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(44,74,115,.13) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol,dl,dd,pre{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
strong,b{font-weight:700}
::selection{background:var(--cyan);color:var(--ink-900)}

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

/* ---------- 3. 版式与容器 ---------- */
.container{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--wide{max-width:var(--shell-max)}

.section{padding-block:clamp(2.5rem,6vw,4.5rem)}
.section--ink{background:var(--ink-900)}
.section--deck{background:var(--ink-800)}
.section--paper{
  background:var(--paper);
  color:var(--ink-900);
  background-image:
    repeating-linear-gradient(90deg,rgba(10,23,48,.035) 0 1px,transparent 1px 6px);
}
.section--paper .lede,
.section--paper .prose{color:#2A3A55}
.section--paper .num{color:var(--ink-900)}
.section--paper a{color:#0E5F5A}

.h-display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2.6rem,7vw,5.4rem);
  line-height:.96;
  letter-spacing:-.03em;
  color:var(--paper);
}
.h-section{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.6rem,3.4vw,2.5rem);
  line-height:1.06;
  letter-spacing:-.02em;
}
.h-editorial{
  font-family:var(--font-serif);
  font-weight:500;
  font-size:clamp(1.15rem,2vw,1.6rem);
  line-height:1.55;
  letter-spacing:.01em;
}
.lede{
  font-size:clamp(1rem,1.35vw,1.1rem);
  line-height:1.9;
  color:var(--mist);
  max-width:34ch;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.24em;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:2px;
  flex:none;
  background:var(--orange);
}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  white-space:nowrap;
  color:var(--paper);
}
.prose p{margin-bottom:1.2em;font-size:1.02rem;line-height:1.85}
.prose ul,.prose ol{margin-bottom:1.2em;padding-left:1.35em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.45em;line-height:1.8}
.prose h2,.prose h3{margin:1.6em 0 .6em;line-height:1.25}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(31,224,206,.4)}
.prose a:hover{border-bottom-color:var(--cyan)}

/* ---------- 4. 通用组件 ---------- */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.62rem 1.05rem;
  font-size:.86rem;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.2;
  color:var(--paper);
  background:transparent;
  border:1px solid var(--line);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--cyan)}
.btn--primary{background:var(--orange);border-color:var(--orange);color:#1A0B03}
.btn--primary:hover{background:var(--amber);border-color:var(--amber);color:#1A0B03}
.btn--quiet{border-color:rgba(31,224,206,.42);color:var(--cyan)}
.btn--quiet:hover{background:rgba(31,224,206,.12);border-color:var(--cyan)}

.panel{
  position:relative;
  background:var(--ink-700);
  border:1px solid var(--line);
  padding:clamp(1.1rem,2.4vw,1.75rem);
}
.panel--cut{clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px))}
.panel--paper{background:var(--paper);color:var(--ink-900);border-color:rgba(10,23,48,.14)}

.heat-bar{
  position:relative;
  display:block;
  height:6px;
  background:rgba(44,74,115,.55);
  overflow:hidden;
}
.heat-bar__fill{
  display:block;
  height:100%;
  width:var(--w,0%);
  background:linear-gradient(90deg,var(--heat-1),var(--heat-2) 30%,var(--heat-3) 58%,var(--heat-4) 80%,var(--heat-5));
  transition:width 320ms var(--ease);
}

.media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  background:
    linear-gradient(135deg,rgba(31,224,206,.18),rgba(10,23,48,.92) 58%,rgba(255,106,31,.16));
  border:1px solid var(--line);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(156,176,204,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(156,176,204,.10) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
}
.media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--21x9{aspect-ratio:21/9}
.media--cut{clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%)}
.media__caption{
  margin-top:.65rem;
  font-family:var(--font-serif);
  font-size:.86rem;
  line-height:1.65;
  color:var(--mist);
}

.breadcrumb{
  padding-block:.9rem .2rem;
  font-size:.78rem;
  letter-spacing:.05em;
  color:var(--mist);
}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem}
.breadcrumb__list li{display:flex;align-items:center;gap:.4rem}
.breadcrumb__list li:not(:last-child)::after{content:"/";color:var(--line)}
.breadcrumb a{color:var(--mist)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--paper)}

[data-reveal]{
  transition:opacity 320ms var(--ease),transform 320ms var(--ease);
  transition-delay:calc(var(--reveal-i,0) * 40ms);
}
.reveal-ready [data-reveal]:not(.is-in){
  opacity:0;
  transform:translateY(8px);
}

/* ---------- 5. 刊头 Header ---------- */
.skip-link{
  position:absolute;
  left:1rem;
  top:0;
  z-index:220;
  transform:translateY(-140%);
  padding:.6rem 1.1rem;
  background:var(--cyan);
  color:var(--ink-900);
  font-weight:700;
  font-size:.85rem;
  letter-spacing:.06em;
  border-radius:0 0 6px 6px;
  transition:transform 180ms var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.scroll-progress{
  position:fixed;
  inset:0 0 auto 0;
  height:3px;
  z-index:210;
  pointer-events:none;
  background:linear-gradient(90deg,var(--cyan),var(--amber) 55%,var(--orange));
  transform:scaleX(0);
  transform-origin:left center;
}

.masthead{
  position:relative;
  z-index:50;
  background:var(--ink-800);
  color:var(--paper);
  border-bottom:1px solid var(--line);
}

.masthead__ticker{
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(90deg,rgba(31,224,206,.10),rgba(10,23,48,0) 44%,rgba(255,106,31,.12));
}
.masthead__ticker-inner{
  display:flex;
  align-items:center;
  gap:.75rem;
  padding-block:.5rem;
  font-size:.75rem;
  letter-spacing:.12em;
}
.masthead__note{color:var(--mist)}
.masthead__note--mono{font-family:var(--font-mono);color:var(--cyan)}
.masthead__dot{
  width:4px;
  height:4px;
  flex:none;
  border-radius:50%;
  background:var(--orange);
}

.masthead__ticker-inner,
.masthead__bar,
.nav__list,
.footer__shell,
.footer__base{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.masthead__bar{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:1rem;
  padding-block:1.15rem .95rem;
}

.masthead__brand{
  grid-column:2;
  justify-self:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.2rem;
  text-align:center;
}
.masthead__brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.55rem,3.6vw,2.5rem);
  line-height:.98;
  letter-spacing:-.025em;
  color:var(--paper);
}
.masthead__brand-sub{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.42em;
  text-indent:.42em;
  color:var(--cyan);
}

.masthead__actions{
  grid-column:3;
  justify-self:end;
  display:flex;
  align-items:center;
  gap:.6rem;
}

.nav-toggle{
  grid-column:1;
  justify-self:start;
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.5rem .75rem;
  font-size:.78rem;
  letter-spacing:.16em;
  color:var(--paper);
  background:rgba(10,23,48,.55);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}
.nav-toggle__icon{display:grid;gap:3px;width:16px;flex:none}
.nav-toggle__icon i{
  display:block;
  height:2px;
  background:var(--cyan);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.nav{
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,23,48,.60),rgba(10,23,48,0));
}
.nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:center;
  gap:.15rem;
}
.nav__item{display:block}
.nav__link{
  position:relative;
  display:block;
  padding:.9rem 1.1rem .95rem;
  font-size:.95rem;
  letter-spacing:.1em;
  color:var(--mist);
  transition:color var(--dur) var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:.9rem;
  bottom:.42rem;
  width:calc(100% - 1.8rem);
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav__link:hover{color:var(--paper)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--cyan);font-weight:700}
.nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange)}

/* ---------- 6. 页脚 Footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,7vw,5.5rem);
  background:var(--ink-800);
  color:var(--paper);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:5px;
  background:linear-gradient(90deg,var(--heat-1),var(--heat-2) 34%,var(--heat-3) 58%,var(--heat-4) 80%,var(--heat-5));
}

.footer__shell{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1.6fr);
  gap:clamp(2rem,5vw,4rem);
  padding-top:clamp(2.5rem,6vw,4rem);
  padding-bottom:clamp(1.75rem,4vw,2.6rem);
}

.footer__logo{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.5rem,3vw,2rem);
  line-height:1.04;
  letter-spacing:-.02em;
  color:var(--paper);
}
.footer__lede{
  margin-top:.9rem;
  max-width:32ch;
  font-size:.92rem;
  line-height:1.85;
  color:var(--mist);
}
.footer__stamp{
  margin-top:1rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.18em;
  color:var(--cyan);
}

.footer__contact{
  margin-top:1.4rem;
  display:grid;
  gap:.55rem;
  border-top:1px solid var(--line-faint);
  padding-top:1rem;
}
.footer__contact-item{
  display:grid;
  grid-template-columns:5.2rem minmax(0,1fr);
  gap:.6rem;
  font-size:.82rem;
  line-height:1.7;
}
.footer__contact-key{
  font-family:var(--font-mono);
  letter-spacing:.1em;
  color:var(--mist);
}
.footer__contact-val{color:var(--paper);word-break:break-word}

.footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1.75rem 1.25rem;
  align-content:start;
}
.footer__col-title{
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--cyan);
  padding-bottom:.6rem;
  border-bottom:1px solid var(--line-soft);
}
.footer__links{
  margin-top:.9rem;
  display:grid;
  gap:.55rem;
}
.footer__link{
  display:inline-flex;
  align-items:center;
  font-size:.9rem;
  color:var(--mist);
  transition:color var(--dur) var(--ease);
}
.footer__link::before{
  content:"";
  display:inline-block;
  width:8px;
  height:2px;
  margin-right:.55rem;
  flex:none;
  background:var(--orange);
  opacity:.5;
  transition:width var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.footer__link:hover{color:var(--paper)}
.footer__link:hover::before{width:16px;opacity:1}

.footer__base{
  display:flex;
  flex-wrap:wrap;
  gap:.55rem 1.6rem;
  align-items:center;
  justify-content:space-between;
  padding-block:1.05rem 1.4rem;
  border-top:1px solid var(--line-soft);
}
.footer__legal{
  font-size:.78rem;
  line-height:1.7;
  color:var(--mist);
}
.footer__legal--mono{font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- 7. 响应式 ---------- */
@media (max-width:1100px){
  .btn{padding:.58rem .85rem;font-size:.8rem}
  .masthead__actions{gap:.45rem}
}

@media (max-width:900px){
  .nav-toggle{display:flex}
  .masthead__note{display:none}
  .masthead__actions{display:none}
  .masthead__ticker-inner{justify-content:center}
  .masthead__bar{padding-block:.95rem .85rem}

  .nav{
    max-height:0;
    opacity:0;
    overflow:hidden;
    transition:max-height 280ms var(--ease),opacity 200ms var(--ease);
  }
  .nav[data-open]{max-height:30rem;opacity:1}
  .nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-block:.35rem 1.1rem;
  }
  .nav__item{border-bottom:1px solid var(--line-faint)}
  .nav__item:last-child{border-bottom:0}
  .nav__link{padding:.95rem .25rem;font-size:1rem;letter-spacing:.12em}
  .nav__link::after{left:.25rem;bottom:.55rem;width:22px}

  .footer__shell{grid-template-columns:1fr;gap:2.25rem}
  .footer__lede{max-width:44ch}
}

@media (max-width:620px){
  body{font-size:15.5px}
  .footer__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__base{flex-direction:column;align-items:flex-start}
}

@media (max-width:420px){
  .masthead__brand-name{font-size:1.5rem}
  .nav-toggle__text{display:none}
  .footer__cols{grid-template-columns:1fr}
  .footer__contact-item{grid-template-columns:1fr;gap:.15rem}
}

/* ---------- 8. 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;
    transition-delay:0ms !important;
  }
  .reveal-ready [data-reveal]:not(.is-in){opacity:1;transform:none}
  .scroll-progress{display:none}
}