/* ============================================================
   华体会体育 · 共享样式 /assets/site.css
   设计语言：赛场战术板 —— 框景刻度、精密网格、等宽数字、荧光状态
   ============================================================ */

/* ---------- 1. 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,h6,p,ul,ol,li,dl,dt,dd,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
table{border-collapse:collapse;border-spacing:0}

/* ---------- 2. 变量 ---------- */
:root{
  --black-900:#0A0B0F;
  --black-700:#15171E;
  --crimson-700:#B4121F;
  --crimson-900:#6E0A18;
  --crimson-glow:#FF3B4E;
  --cyan:#19F2D4;
  --yellow:#FFD84D;
  --graphite:#2C303A;
  --slate:#9AA1AE;
  --paper:#F4F6F8;
  --ink:#E6E9EF;

  --line:rgba(154,161,174,.22);
  --line-soft:rgba(154,161,174,.12);
  --tick:rgba(25,242,212,.62);

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --gutter:clamp(18px,4vw,44px);
  --header-h:64px;
  --ease:cubic-bezier(.22,.72,.24,1);
  --dur:.26s;
}

/* ---------- 3. 基座与中文排版 ---------- */
html,body{min-height:100%}
body{
  background:var(--black-900);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(154,161,174,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(154,161,174,.045) 1px,transparent 1px);
  background-size:64px 64px;
  background-position:center top;
}
h1,h2,h3,h4{font-weight:200;line-height:1.12;letter-spacing:-.02em}
p{max-width:68ch}
strong,b{font-weight:900}
::selection{background:var(--crimson-700);color:#fff}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.site-header :focus-visible,.site-footer :focus-visible{outline-offset:2px}

#main-content{display:block;scroll-margin-top:calc(var(--header-h) + 16px)}
.site-main{position:relative;z-index:1}

/* ---------- 4. 容器与节奏 ---------- */
.wrap{width:min(1280px,100% - var(--gutter));margin-inline:auto}
.wrap--wide{width:min(1560px,100% - var(--gutter));margin-inline:auto}
.wrap--narrow{width:min(880px,100% - var(--gutter));margin-inline:auto}
.section{padding-block:clamp(56px,8vw,120px);position:relative}
.section--tight{padding-block:clamp(36px,5vw,72px)}
.prose{max-width:68ch;color:var(--ink)}
.prose p + p{margin-top:1.1em}
.lead{font-size:clamp(17px,1.4vw,20px);line-height:1.7;color:#CDD3DC;max-width:60ch}
.muted{color:var(--slate)}

/* ---------- 5. 文字组件 ---------- */
.display{
  font-size:clamp(52px,9.5vw,140px);
  font-weight:200;
  line-height:1.02;
  letter-spacing:-.02em;
}
.kicker,.index-tag{
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--slate);
  text-transform:uppercase;
}
.index-tag{display:inline-flex;align-items:center;gap:8px}
.index-tag::before{content:"";width:16px;height:1px;background:var(--cyan)}
.num{font-family:var(--font-mono);font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:-.01em}

.chapter{display:flex;align-items:flex-start;gap:clamp(14px,2vw,28px);margin-bottom:clamp(22px,3vw,44px)}
.chapter-num{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:clamp(30px,4.4vw,48px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--crimson-glow);
  flex:none;
}
.chapter-body{flex:1;min-width:0;border-left:1px solid var(--line);padding-left:clamp(14px,2vw,28px)}
.chapter-kicker{font-size:11px;letter-spacing:.16em;color:var(--slate)}
.chapter-title{font-size:clamp(24px,3.4vw,40px);font-weight:200;margin-top:6px}

/* ---------- 6. 网格 ---------- */
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,28px)}
.col-2{grid-column:span 2}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-12{grid-column:span 12}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  letter-spacing:.06em;
  line-height:1.2;
  border-radius:0;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--primary{background:var(--crimson-700);border-color:var(--crimson-700);color:#fff}
.btn--primary:hover{background:var(--crimson-glow);border-color:var(--crimson-glow);color:#fff}
.btn--highlight{background:var(--yellow);border-color:var(--yellow);color:var(--black-900);font-weight:900}
.btn--highlight:hover{background:#FFE586;border-color:#FFE586;color:var(--black-900)}
.btn--ghost{color:var(--slate)}

/* ---------- 8. 框景与装饰 ---------- */
.frame{
  position:relative;
  border:1px solid var(--line);
  background-image:
    linear-gradient(var(--tick),var(--tick)),linear-gradient(var(--tick),var(--tick)),
    linear-gradient(var(--tick),var(--tick)),linear-gradient(var(--tick),var(--tick)),
    linear-gradient(var(--tick),var(--tick)),linear-gradient(var(--tick),var(--tick)),
    linear-gradient(var(--tick),var(--tick)),linear-gradient(var(--tick),var(--tick));
  background-repeat:no-repeat;
  background-size:14px 1px,1px 14px,14px 1px,1px 14px,14px 1px,1px 14px,14px 1px,1px 14px;
  background-position:left 0 top 0,left 0 top 0,right 0 top 0,right 0 top 0,
                      left 0 bottom 0,left 0 bottom 0,right 0 bottom 0,right 0 bottom 0;
}
.frame--dense{
  background-image:repeating-linear-gradient(90deg,var(--line-soft) 0 1px,transparent 1px 12px),
                     repeating-linear-gradient(90deg,var(--line-soft) 0 1px,transparent 1px 12px);
  background-size:100% 6px,100% 6px;
  background-position:left top,left bottom;
  background-repeat:no-repeat;
}
.frame--paper{background-color:var(--paper);color:var(--black-900);border-color:var(--paper)}

.divider{
  height:1px;
  background:linear-gradient(90deg,var(--crimson-700),rgba(255,59,78,.24) 45%,transparent);
  transform:skewY(-1.4deg);
  transform-origin:left center;
}
.rule{height:1px;background:var(--line);border:0}

.dot{width:7px;height:7px;background:var(--cyan);display:inline-block;flex:none}
.status-line{display:inline-flex;align-items:center;gap:9px;font-size:11px;letter-spacing:.16em;color:var(--slate)}

/* ---------- 9. 卡片与数据面板 ---------- */
.card{
  position:relative;
  background:var(--black-700);
  border:1px solid var(--line);
  padding:clamp(18px,2.2vw,28px);
}
.card--accent{border-top:2px solid var(--crimson-700)}
.card-title{font-size:13px;letter-spacing:.16em;color:var(--slate);font-weight:500}
.card-value{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:clamp(28px,3.6vw,48px);
  line-height:1.05;
  color:var(--cyan);
  margin-top:10px;
}

/* ---------- 10. 面包屑与路径 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:11px;letter-spacing:.16em;color:var(--slate)}
.crumb li{display:inline-flex;align-items:center;gap:10px}
.crumb li + li::before{content:"/";color:var(--graphite)}
.crumb a{color:var(--slate);transition:color var(--dur) var(--ease)}
.crumb a:hover{color:var(--cyan)}
.crumb [aria-current="page"]{color:var(--ink)}

.path{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-mono);font-size:12px;color:var(--slate)}
.path span{border:1px solid var(--line);padding:4px 10px}

/* ---------- 11. 折叠内容组 ---------- */
.acc{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-btn{
  display:flex;
  width:100%;
  align-items:center;
  gap:16px;
  padding:20px 0;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  transition:color var(--dur) var(--ease);
}
.acc-btn:hover{color:var(--cyan)}
.acc-btn::after{
  content:"";
  margin-left:auto;
  width:9px;
  height:9px;
  border-right:1px solid var(--cyan);
  border-bottom:1px solid var(--cyan);
  transform:rotate(45deg);
  transition:transform var(--dur) var(--ease);
  flex:none;
}
.acc-btn[aria-expanded="true"]::after{transform:rotate(-135deg)}
.acc-panel{height:0;overflow:hidden;transition:height var(--dur) var(--ease)}
.acc-inner{padding:0 0 22px;color:#C6CCD6;max-width:68ch}

/* ---------- 12. 图片容器基础规则 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--black-700);
  border:1px solid var(--line);
  aspect-ratio:16/9;
}
.media__img,.media img,.media video{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  display:block;
  filter:grayscale(.16) contrast(1.06);
  transition:transform .6s var(--ease),filter .6s var(--ease);
}
.media:hover .media__img,.media:hover img{transform:scale(1.03);filter:none}
.media__cap{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px 12px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--paper);
  background:linear-gradient(0deg,rgba(10,11,15,.9),rgba(10,11,15,0));
}
.media__ph{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:rgba(154,161,174,.66);
  background-image:
    linear-gradient(135deg,rgba(25,242,212,.07),transparent 62%),
    repeating-linear-gradient(90deg,rgba(154,161,174,.07) 0 1px,transparent 1px 48px);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:4/5}
.media--square{aspect-ratio:1/1}
.media--slant{clip-path:polygon(0 0,100% 0,100% 100%,0 92%)}

/* ---------- 13. 显现动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease) var(--rd,0ms),transform .6s var(--ease) var(--rd,0ms);
}
[data-reveal].is-visible{opacity:1;transform:none}

@keyframes hth-pulse{
  0%{box-shadow:0 0 0 0 rgba(25,242,212,.55)}
  70%{box-shadow:0 0 0 9px rgba(25,242,212,0)}
  100%{box-shadow:0 0 0 0 rgba(25,242,212,0)}
}
.brand-dot[data-pulse]{animation:hth-pulse 240ms var(--ease) 1}

/* ---------- 14. 页头 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  transform:translateY(-200%);
  background:var(--yellow);
  color:var(--black-900);
  padding:10px 16px;
  font-size:13px;
  font-weight:900;
  letter-spacing:.06em;
}
.skip-link:focus{transform:none}

.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:linear-gradient(180deg,rgba(10,11,15,.97),rgba(10,11,15,.88));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.header-bar{
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,40px);
  width:min(1600px,100% - var(--gutter));
  margin-inline:auto;
  min-height:var(--header-h);
}
.header-brand-zone{display:flex;align-items:center;flex:none}

.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-dot{
  width:7px;height:7px;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(25,242,212,.14);
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:15px;font-weight:500;letter-spacing:.08em;color:var(--ink)}
.brand-sub{font-size:11px;letter-spacing:.16em;color:var(--slate)}

.site-nav{
  flex:1;
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,36px);
  min-width:0;
}
.nav-list{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px);min-width:0}
.nav-list a{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:21px 2px;
  color:var(--slate);
  font-size:14px;
  font-weight:500;
  letter-spacing:.05em;
  white-space:nowrap;
  transition:color var(--dur) var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:11px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-list a:hover{color:var(--ink)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--cyan)}
.nav-list a[aria-current="page"]::after{transform:scaleX(1)}
.nav-idx{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:rgba(154,161,174,.62)}
.nav-list a[aria-current="page"] .nav-idx{color:var(--cyan)}

.nav-aside{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.4vw,18px);
  margin-left:auto;
  padding-left:clamp(12px,1.8vw,28px);
  border-left:1px solid var(--line);
  flex:none;
}
.nav-quick{
  border:1px solid var(--line);
  padding:8px 14px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--ink);
  white-space:nowrap;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-quick:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-refresh{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
  white-space:nowrap;
}
.nav-refresh::before{content:"";width:6px;height:6px;background:var(--cyan);flex:none}
.nav-clock{font-family:var(--font-mono);font-weight:500;color:var(--ink)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  border:1px solid var(--line);
  padding:9px 13px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink);
  flex:none;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{display:flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle-bars i{display:block;height:1px;background:currentColor;transition:transform .24s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.scroll-progress{
  position:absolute;
  left:0;bottom:-1px;
  width:100%;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  opacity:0;
  transition:transform .08s linear,opacity .2s var(--ease);
}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(48px,7vw,110px);
  border-top:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(110,10,24,.30),rgba(110,10,24,.06) 46%,rgba(10,11,15,0) 100%),
    var(--black-900);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:6px;
  background:linear-gradient(90deg,var(--crimson-900),var(--crimson-700) 34%,rgba(255,59,78,.22) 68%,transparent);
  clip-path:polygon(0 0,100% 0,100% 100%,0 28%);
}
.footer-frame{
  width:min(1560px,100% - var(--gutter));
  margin-inline:auto;
  padding-block:clamp(40px,5vw,72px) clamp(24px,3vw,36px);
}
.footer-lead{border-bottom:1px solid var(--line);padding-bottom:clamp(24px,3vw,40px)}
.footer-lead-name{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:200;
  letter-spacing:-.02em;
  color:var(--ink);
  line-height:1.1;
}
.footer-lead-sub{font-size:13px;letter-spacing:.16em;color:var(--slate);margin-top:8px}
.footer-lead-status{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-top:14px;
  font-size:11px;
  letter-spacing:.16em;
  color:var(--slate);
}
.footer-cta{margin-top:20px}

.footer-dirs{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(20px,3vw,48px);
  padding-block:clamp(28px,3.4vw,48px);
  border-bottom:1px solid var(--line);
}
.footer-col-title{
  display:flex;
  align-items:baseline;
  gap:9px;
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--paper);
  margin-bottom:16px;
}
.col-idx{font-family:var(--font-mono);font-size:11px;color:var(--crimson-glow)}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{
  font-size:14px;
  font-weight:400;
  color:var(--slate);
  transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.footer-list a:hover{color:var(--cyan);padding-left:5px}

.footer-base{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:clamp(20px,3vw,48px);
  padding-top:clamp(24px,3vw,36px);
}
.footer-contact{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px clamp(16px,2vw,32px);
}
.contact-row{display:flex;flex-direction:column;gap:3px}
.contact-row dt{font-size:11px;letter-spacing:.16em;color:var(--slate)}
.contact-row dd{font-size:14px;color:var(--ink);line-height:1.5}
.contact-note{
  grid-column:1 / -1;
  font-size:12px;
  color:var(--slate);
  max-width:56ch;
}
.footer-legal{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--slate);
}
.legal-copy{font-family:var(--font-mono);font-size:12px}
.legal-links{display:flex;flex-wrap:wrap;gap:16px;margin-top:4px}
.legal-links a{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--slate);
  border-bottom:1px solid var(--line);
  padding-bottom:2px;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.legal-links a:hover{color:var(--cyan);border-color:var(--cyan)}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1024px){
  .col-2,.col-3,.col-4{grid-column:span 6}
  .col-5,.col-7,.col-8,.col-9,.col-10{grid-column:span 12}
  .footer-dirs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base{grid-template-columns:1fr}
  .footer-contact{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:960px){
  .header-bar{flex-wrap:wrap;gap:0;align-items:stretch}
  .header-brand-zone{order:1;flex:1;min-height:var(--header-h)}
  .nav-toggle{order:2;display:inline-flex;align-self:center}
  .site-nav{
    order:3;
    flex-basis:100%;
    display:block;
    margin:0;
    max-height:0;
    overflow:hidden;
    transition:max-height .3s var(--ease);
    border-top:1px solid transparent;
  }
  .site-nav[data-open]{
    max-height:70vh;
    overflow:visible;
    border-top-color:var(--line);
    padding-bottom:14px;
  }
  .nav-list{
    display:flex;
    overflow-x:auto;
    gap:24px;
    padding:14px 0 12px;
    -webkit-overflow-scrolling:touch;
  }
  .nav-list a{padding:6px 0}
  .nav-list a::after{bottom:0;height:1px}
  .nav-aside{
    margin-left:0;
    padding-left:0;
    border-left:0;
    border-top:1px solid var(--line-soft);
    padding-top:14px;
    flex-wrap:wrap;
    justify-content:space-between;
  }
  .nav-refresh{order:2}
  .nav-quick{order:1}
}

@media (max-width:640px){
  body{font-size:15px}
  .header-bar{width:calc(100% - 28px)}
  .brand-name{font-size:14px}
  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-12{grid-column:span 6}
  .chapter{flex-direction:column;gap:10px}
  .chapter-body{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:12px}
  .footer-dirs{grid-template-columns:1fr;}
  .footer-contact{grid-template-columns:1fr}
  .footer-frame{width:calc(100% - 32px)}
  .media--slant{clip-path:none}
}

/* ---------- 17. 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  .site-nav,.acc-panel,.scroll-progress,.btn,.nav-list a::after,.footer-list a,.media__img,.media img{
    transition:none!important;
  }
  .brand-dot[data-pulse]{animation:none!important}
  .media:hover .media__img,.media:hover img{transform:none}
}