/* ==========================================================================
   8868体育 · 共享样式表 /assets/site.css
   赛场战术板 + 转会窗倒计时的夜灯气质
   ========================================================================== */

/* ---------- 变量 ---------- */
:root{
  --ink:#0B1230;
  --ink-deep:#12151C;
  --orange:#FF6A2B;
  --mint:#35E0B0;
  --cyan:#35C6E8;
  --paper:#EEF2F8;
  --steel:#8C97AB;
  --teal:#0E5F73;
  --amber:#FFC24B;
  --brick:#E2483D;
  --warm:#D9DEE8;
  --line:rgba(238,242,248,0.12);
  --line-strong:rgba(238,242,248,0.28);
  --shadow:6px 6px 0 var(--orange);
  --shadow-cool:6px 6px 0 var(--teal);
  --wrap:1240px;
  --font-display:"Oswald","Archivo Narrow","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --header-h:104px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}

/* ---------- 中文排版与基础文本 ---------- */
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.72;
  font-weight:400;
  letter-spacing:0.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2;font-weight:600;letter-spacing:0}
strong,b{font-weight:600;color:var(--paper)}
.mono,.stat__value,.header-hours,.header-mail,.footer-rhythm,.footer-contact__num,.footer-base,.breadcrumb__list{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}
#main-content{display:block;outline:none}
.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;
}

/* ---------- 布局骨架 ---------- */
.wrap{width:min(100% - 44px,var(--wrap));margin-inline:auto}
.section{padding:clamp(42px,6.4vw,86px) 0;border-top:1px solid var(--line)}
.section--alt{background:var(--ink-deep)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;margin-bottom:30px;
}
.rule{height:1px;width:100%;background:var(--line);border:0;margin:0}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:0.24em;text-transform:uppercase;
  color:var(--mint);margin:0 0 10px;
}
.page-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(42px,7.6vw,104px);
  line-height:0.94;
  letter-spacing:-0.02em;
  margin:0;
}
.prose{max-width:72ch;font-size:17px}
.prose p{margin:0 0 1.05em}
.prose p:last-child{margin-bottom:0}
.prose h2,.prose h3{margin:1.6em 0 .6em;font-size:clamp(20px,2.2vw,26px)}
.prose ul,.prose ol{margin:0 0 1.05em;padding-left:1.2em;list-style:square}
.prose li{margin-bottom:.35em}
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:960px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:660px){
  .grid--2,.grid--3{grid-template-columns:1fr}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;
  font-family:var(--font-display);font-weight:700;font-size:15px;letter-spacing:0.07em;
  border:2px solid var(--paper);color:var(--paper);background:transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow)}
.btn:active{transform:none;box-shadow:none}
.btn--primary{background:var(--orange);color:var(--ink);border-color:var(--orange);box-shadow:5px 5px 0 var(--teal)}
.btn--primary:hover{box-shadow:7px 7px 0 var(--teal)}
.btn--ghost{border-color:var(--cyan);color:var(--cyan)}
.btn--ghost:hover{box-shadow:6px 6px 0 rgba(53,198,232,0.28)}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 22px}
.breadcrumb__list{display:flex;flex-wrap:wrap;gap:4px;font-size:12.5px;color:var(--steel)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--line-strong)}
.breadcrumb__link{color:var(--steel);border-bottom:1px solid transparent}
.breadcrumb__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumb__item[aria-current="page"]{color:var(--amber)}

/* ---------- 数据模块 ---------- */
.panel{
  background:var(--ink-deep);
  border:2px solid var(--line-strong);
  padding:24px 24px 22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.panel:hover{transform:translate(-3px,-3px);box-shadow:var(--shadow);border-color:var(--orange)}
.panel__head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.panel__body{font-size:16px;color:var(--paper)}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{font-size:clamp(26px,3.2vw,40px);font-weight:700;color:var(--cyan);text-align:right}
.stat__label{font-size:12.5px;letter-spacing:0.12em;color:var(--steel);text-transform:uppercase}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;font-family:var(--font-mono);font-size:12px;letter-spacing:0.08em;
  border:1px solid var(--line-strong);color:var(--paper);background:rgba(238,242,248,0.05);
}
.tag--hot{border-color:var(--orange);color:var(--orange)}
.tag--cool{border-color:var(--cyan);color:var(--cyan)}

/* ---------- 时间轴（左侧纵向骨架） ---------- */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:0;bottom:0;width:2px;background:var(--line-strong)}
.timeline__item{position:relative;padding:0 0 30px}
.timeline__item::before{
  content:"";position:absolute;left:-26px;top:8px;width:12px;height:12px;
  background:var(--ink);border:2px solid var(--cyan);
}
.timeline__year{
  display:block;font-family:var(--font-mono);font-size:13px;letter-spacing:0.16em;
  color:var(--amber);margin-bottom:6px;
}
.timeline__body{font-size:15.5px;color:var(--steel)}
@media (max-width:860px){
  .timeline{
    padding:0 0 6px;display:flex;gap:14px;overflow-x:auto;
    scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
  }
  .timeline::before{display:none}
  .timeline__item{min-width:230px;padding:0;scroll-snap-align:start;border-top:2px solid var(--line-strong);padding-top:14px}
  .timeline__item::before{display:none}
}

/* ---------- 图像容器（页面阶段放 <img> 即可） ---------- */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;
  background:linear-gradient(158deg,var(--teal) 0%,var(--ink-deep) 74%);
  border:2px solid var(--line-strong);
}
.media-frame img{width:100%;height:100%;object-fit:cover;object-position:center}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:9px 14px;background:rgba(11,18,48,0.86);border-top:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:12px;color:var(--paper);
}
.media-frame--tall{aspect-ratio:3/4}

/* ---------- 入场动效协议 ---------- */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .28s ease,transform .28s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;left:12px;top:-80px;z-index:200;
  padding:10px 16px;background:var(--orange);color:var(--ink);
  font-family:var(--font-display);font-weight:700;letter-spacing:0.06em;
  border:2px solid var(--ink);transition:top .16s ease;
}
.skip-link:focus{top:12px}

/* ==========================================================================
   头部
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--ink-deep);
  border-bottom:1px solid var(--line-strong);
}
.header-top{background:var(--ink-deep);border-bottom:1px solid var(--line)}
.header-top__inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:42px;padding:7px 0;
}
.brand-lockup{display:flex;align-items:baseline;gap:14px;min-width:0}
.brand-mark{
  font-family:var(--font-display);font-weight:900;font-size:19px;
  letter-spacing:0.02em;color:var(--paper);white-space:nowrap;
}
.brand-mark__dot{color:var(--orange)}
.brand-tagline{
  margin:0;font-size:12.5px;color:var(--steel);letter-spacing:0.06em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.header-top__meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--steel)}
.header-mail{
  color:var(--cyan);letter-spacing:0.02em;white-space:nowrap;
  border-bottom:1px dashed rgba(53,198,232,0.45);
}
.header-mail:hover{border-bottom-style:solid;border-bottom-color:var(--cyan)}
.header-hours{color:var(--steel);white-space:nowrap}
.header-cta{
  display:inline-flex;align-items:center;
  padding:5px 13px;background:var(--orange);color:var(--ink);
  font-family:var(--font-display);font-weight:700;font-size:12.5px;letter-spacing:0.08em;
  border:2px solid var(--orange);white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease;
}
.header-cta:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 var(--mint)}

.header-bar__inner{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;
}
.site-nav{min-width:0}
.site-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.site-nav__item{display:block}
.site-nav__link{
  display:block;padding:10px 16px;
  font-family:var(--font-display);font-weight:700;font-size:15px;letter-spacing:0.08em;
  color:var(--paper);border:1px solid transparent;white-space:nowrap;
  transition:color .16s ease,border-color .16s ease,background-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.site-nav__link:hover{color:var(--orange);border-color:var(--line-strong)}
.site-nav__link[aria-current="page"]{
  background:var(--orange);color:var(--ink);border-color:var(--orange);
  box-shadow:4px 4px 0 rgba(238,242,248,0.18);
}
.site-nav__link[aria-current="page"]:hover{color:var(--ink);border-color:var(--orange)}

/* 页面级时间轴导航变体：body[data-nav-mode="timeline"] */
.site-header[data-nav-mode="timeline"] .site-nav__list{
  flex-wrap:nowrap;overflow-x:auto;scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;scrollbar-width:thin;padding-bottom:2px;
}
.site-header[data-nav-mode="timeline"] .site-nav__item{scroll-snap-align:start}
.site-header[data-nav-mode="timeline"] .site-nav__link{
  border-left:1px solid var(--line-strong);border-radius:0;
}
.site-header[data-nav-mode="timeline"] .site-nav__list::-webkit-scrollbar{height:4px}
.site-header[data-nav-mode="timeline"] .site-nav__list::-webkit-scrollbar-thumb{background:var(--line-strong)}

/* 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 14px;border:2px solid var(--line-strong);
  font-family:var(--font-display);font-weight:700;font-size:14px;letter-spacing:0.1em;
  color:var(--paper);background:var(--ink);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange)}
.nav-toggle__bars{position:relative;display:block;width:20px;height:2px;background:currentColor;box-shadow:0 -6px 0 currentColor,0 6px 0 currentColor}
.nav-toggle__label{white-space:nowrap}
.site-header[data-open] .nav-toggle{border-color:var(--orange);color:var(--orange)}

/* 顶部阅读进度 */
.scroll-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  background:rgba(238,242,248,0.08);
  pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--orange) 0%,var(--amber) 42%,var(--cyan) 100%);
  transform:scaleX(0);transform-origin:left center;
}

@media (max-width:1000px){
  .brand-tagline{display:none}
}
@media (max-width:900px){
  .header-hours{display:none}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;z-index:130;
    display:none;
    background:var(--ink-deep);
    border:2px solid var(--line-strong);border-top:0;
    box-shadow:8px 8px 0 rgba(0,0,0,0.45);
    padding:8px;max-height:min(70vh,520px);overflow-y:auto;
  }
  .site-header[data-open] .site-nav{display:block}
  .site-nav__list{flex-direction:column;align-items:stretch;flex-wrap:nowrap;overflow:visible}
  .site-nav__link{padding:13px 14px;border-bottom:1px solid var(--line);font-size:16px}
  .site-nav__link[aria-current="page"]{box-shadow:none}
  .nav-toggle{display:inline-flex}
  .site-header[data-nav-mode="timeline"] .site-nav__list{overflow-x:visible}
}
@media (max-width:600px){
  .header-top__meta{gap:10px}
  .header-mail{font-size:11.5px;border-bottom:0}
  .header-cta{padding:4px 10px;font-size:11.5px}
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  background:var(--ink-deep);
  border-top:3px solid var(--orange);
  color:var(--paper);
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.25fr 1fr;gap:34px;
  padding:clamp(40px,5vw,62px) 0 32px;
}
.footer-col{min-width:0}
.footer-col__title{
  font-family:var(--font-display);font-weight:700;font-size:13px;letter-spacing:0.22em;
  text-transform:uppercase;color:var(--steel);margin:0 0 16px;
}
.footer-brand{
  display:inline-block;font-family:var(--font-display);font-weight:900;font-size:24px;
  letter-spacing:0.02em;color:var(--paper);margin-bottom:12px;
}
.footer-brand:hover{color:var(--orange)}
.footer-word{font-size:14.5px;color:var(--steel);max-width:32ch;margin-bottom:14px}
.footer-rhythm{
  display:inline-block;font-size:12px;letter-spacing:0.08em;color:var(--mint);
  border:1px solid rgba(53,224,176,0.4);padding:5px 10px;
}
.footer-nav__list li + li{margin-top:9px}
.footer-nav__list a{
  display:inline-block;position:relative;padding-left:14px;font-size:15px;color:var(--paper);
}
.footer-nav__list a::before{
  content:"";position:absolute;left:0;top:0.62em;width:6px;height:6px;
  background:var(--line-strong);transition:background-color .16s ease;
}
.footer-nav__list a:hover{color:var(--orange)}
.footer-nav__list a:hover::before{background:var(--orange)}
.footer-contact__list{font-size:14.5px;color:var(--steel)}
.footer-contact__list li + li{margin-top:10px}
.footer-contact__link{color:var(--cyan);border-bottom:1px dashed rgba(53,198,232,0.45);word-break:break-all}
.footer-contact__link:hover{border-bottom-style:solid}
.footer-contact__num{display:inline-block;color:var(--paper);letter-spacing:0.06em;font-size:15px}
.footer-note{
  margin-top:14px;padding-left:12px;border-left:2px solid var(--amber);
  font-size:12.5px;color:var(--steel);
}
.footer-legal__list li + li{margin-top:9px}
.footer-legal__list a{font-size:14.5px;color:var(--steel);border-bottom:1px solid transparent}
.footer-legal__list a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

.season-band{
  overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--ink);padding:9px 0;
}
.season-band__track{display:flex;width:max-content;animation:season-scroll 34s linear infinite}
.season-band__item{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:0.16em;color:var(--steel);
  padding:0 22px;border-right:1px solid var(--line);white-space:nowrap;
}
@keyframes season-scroll{
  from{transform:translateX(0)}
  to{transform:translateX(-50%)}
}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 20px;padding:16px 0 26px;
  font-size:12px;letter-spacing:0.06em;color:var(--steel);
}
.footer-icp{color:var(--steel)}
.footer-copy{color:var(--steel)}

@media (max-width:900px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-word{max-width:none}
  .footer-base{flex-direction:column;align-items:flex-start}
}

/* ==========================================================================
   减少动效偏好
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .season-band__track{animation:none;transform:none}
  [data-reveal]{opacity:1;transform:none}
  .btn:hover,.panel:hover,.header-cta:hover{transform:none}
}