/* ==========================================================================
   火博体育 · 共享站套件  /assets/site.css
   竞技场数据指挥台 / Arena Data Console
   ========================================================================== */

/* 1. 设计变量 -------------------------------------------------------------- */
:root{
  --carbon:#0E0F10;
  --ink:#1B1A18;
  --ink-soft:#4A443C;
  --cream:#F6EFE3;
  --paper:#E8DDC9;
  --lava:#FF5A1F;
  --lava-deep:#B93208;
  --steel:#7C93A8;
  --steel-lt:#C5D2DC;
  --steel-deep:#3F5265;
  --lime:#C7FF3F;
  --line:#3A342D;

  --on-dark:#F6EFE3;
  --on-dark-soft:rgba(246,239,227,.74);
  --line-dark:rgba(246,239,227,.14);
  --line-light:rgba(27,26,24,.16);

  --f-display:"Barlow Condensed","Oswald","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --f-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --bar-h:56px;
  --wrap:1360px;
  --gutter:clamp(16px,3.4vw,44px);
  --gap:clamp(16px,2vw,28px);
  --sect:clamp(56px,7vw,112px);

  --r:2px;
  --shadow:0 1px 0 rgba(27,26,24,.05), 0 18px 34px -30px rgba(14,15,16,.6);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* 2. 重置 ------------------------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--bar-h) + 26px);
}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol,fieldset{padding:0;list-style:none;border:0}
img,svg,video,canvas{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}
table{border-collapse:collapse;width:100%}
hr{border:0;height:1px;background:var(--line-light)}

/* 3. 中文排版与基础文字 ---------------------------------------------------- */
body{
  background:var(--cream);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:clamp(15px,.55vw + 12px,17px);
  line-height:1.75;
  font-weight:400;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
#main-content{flex:1 0 auto}

h1,h2,h3,h4,h5{font-family:var(--f-display);font-weight:800;line-height:1.02;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:clamp(56px,8vw,112px);line-height:.94;letter-spacing:-.025em}
h2{font-size:clamp(32px,4vw,48px);line-height:1}
h3{font-size:clamp(20px,1.8vw,26px);line-height:1.16;font-weight:700;letter-spacing:0}
h4{font-size:clamp(15px,1.2vw,17px);line-height:1.32;font-weight:700;letter-spacing:.01em}

p{orphans:2;widows:2}
strong,b{font-weight:700}
small{font-size:.82em}
a:not([class]){color:var(--lava-deep);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
a:not([class]):hover{color:var(--lava)}

.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}

/* 4. 布局工具 -------------------------------------------------------------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid{display:grid;gap:var(--gap)}
.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))}
.grid--asym{grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr)}
.divider{height:1px;background:var(--line-light);border:0;margin:0}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* 5. 无障碍：跳转链接与焦点 ------------------------------------------------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:999;
  padding:10px 18px;
  background:var(--lava);color:var(--carbon);
  font-family:var(--f-display);font-weight:700;font-size:15px;letter-spacing:.08em;
  border-radius:var(--r);
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

:focus-visible{
  outline:2px solid var(--lava);
  outline-offset:3px;
  border-radius:var(--r);
}
.site-header :focus-visible,
.site-footer :focus-visible{outline-color:var(--lime)}

/* 6. 按钮 ------------------------------------------------------------------ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.62em 1.15em;
  border:1px solid transparent;border-radius:var(--r);
  font-family:var(--f-display);font-weight:700;font-size:15px;
  line-height:1.1;letter-spacing:.06em;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--sm{padding:.46em .85em;font-size:13px;letter-spacing:.08em}
.btn--lava{background:var(--lava);border-color:var(--lava);color:var(--carbon)}
.btn--lava:hover{background:var(--lava-deep);border-color:var(--lava-deep);color:var(--cream)}
.btn--ink{background:var(--ink);border-color:var(--ink);color:var(--cream)}
.btn--ink:hover{background:var(--lava);border-color:var(--lava);color:var(--carbon)}
.btn--ghost{background:transparent;border-color:rgba(246,239,227,.3);color:var(--cream)}
.btn--ghost:hover{border-color:var(--lava);color:var(--lava)}

/* 7. 品牌块（页头 / 页脚共用） ---------------------------------------------- */
.brand{
  display:inline-flex;align-items:center;gap:11px;
  color:var(--cream);flex:0 0 auto;
}
.brand__mark{
  position:relative;display:block;flex:0 0 auto;
  width:6px;height:27px;background:var(--lava);
}
.brand__mark::after{
  content:"";position:absolute;left:calc(100% + 5px);top:0;
  width:2px;height:100%;
  background-image:repeating-linear-gradient(to bottom,rgba(246,239,227,.55) 0 2px,transparent 2px 6px);
}
.brand__text{display:flex;flex-direction:column;gap:4px;line-height:1}
.brand__name{
  font-family:var(--f-display);font-weight:800;
  font-size:21px;line-height:1;letter-spacing:.1em;color:var(--cream);
}
.brand__tag{
  font-family:var(--f-body);font-size:10.5px;line-height:1;
  letter-spacing:.2em;color:var(--steel-lt);
}

/* 8. 页头命令栏 ------------------------------------------------------------ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--carbon);
  color:var(--on-dark);
  border-bottom:1px solid var(--line-dark);
}
.cmd-bar{
  display:flex;align-items:center;
  gap:clamp(12px,1.8vw,26px);
  min-height:var(--bar-h);
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding-inline:var(--gutter);
}

/* 8.1 主导航 */
.site-nav{margin-left:auto}
.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 11px;border-radius:var(--r);
  color:var(--steel-lt);
  font-family:var(--f-body);font-size:14px;font-weight:500;letter-spacing:.04em;
  transition:color .16s var(--ease),background-color .16s var(--ease);
}
.site-nav__idx{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.04em;
  color:var(--steel);opacity:.75;
  transition:color .16s var(--ease),opacity .16s var(--ease);
}
.site-nav__link:hover{color:var(--cream);background:rgba(246,239,227,.07)}
.site-nav__link:hover .site-nav__idx{color:var(--lava);opacity:1}
.site-nav__link[aria-current="page"]{
  background:var(--lava);color:var(--carbon);font-weight:700;
}
.site-nav__link[aria-current="page"] .site-nav__idx{color:rgba(14,15,16,.6);opacity:1}

/* 8.2 右侧状态区 */
.cmd-bar__aside{
  display:flex;align-items:center;gap:14px;flex:0 0 auto;
}
.cmd-status{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;
  color:var(--steel-lt);white-space:nowrap;
}
.cmd-status__dot{
  width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:var(--lime);
  animation:statusPulse 2.8s var(--ease) infinite;
}
@keyframes statusPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(199,255,63,.5)}
  55%{box-shadow:0 0 0 5px rgba(199,255,63,0)}
}

/* 8.3 移动导航按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;flex:0 0 auto;
  min-height:38px;padding:0 12px;
  border:1px solid rgba(246,239,227,.28);border-radius:var(--r);
  color:var(--cream);
  font-family:var(--f-mono);font-size:11px;letter-spacing:.16em;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle__bars{display:flex;flex-direction:column;gap:3px;width:15px}
.nav-toggle__bars i{display:block;height:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"]{background:var(--lava);border-color:var(--lava);color:var(--carbon)}
.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)}

/* 8.4 刻度尺与阅读进度 */
.cmd-ruler{
  height:6px;
  background-image:
    repeating-linear-gradient(90deg,rgba(246,239,227,.42) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(90deg,rgba(246,239,227,.17) 0 1px,transparent 1px 9px);
  border-bottom:1px solid rgba(246,239,227,.1);
}
.read-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(246,239,227,.07);
  pointer-events:none;
}
.read-progress__bar{
  display:block;height:100%;width:0;
  background:var(--lava);
  transition:width .12s linear;
}

/* 9. 页脚 ------------------------------------------------------------------ */
.site-footer{
  background:var(--carbon);
  color:var(--on-dark);
  border-top:1px solid var(--line-dark);
}
.site-footer__top{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:clamp(40px,5vw,76px) var(--gutter) clamp(28px,3.5vw,48px);
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1.5fr);
  gap:clamp(28px,4vw,72px);
  align-items:start;
}
.footer-ident{max-width:46ch}
.footer-brand{display:inline-flex}
.footer-summary{
  margin-top:20px;
  font-size:14.5px;line-height:1.8;
  color:var(--on-dark-soft);
}
.footer-contact{display:grid;gap:9px;margin-top:clamp(20px,2.6vw,30px)}
.footer-contact li{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:12px;
  align-items:baseline;
}
.footer-contact__k{
  font-family:var(--f-mono);font-size:10.5px;letter-spacing:.18em;
  color:var(--steel);
}
.footer-contact__v{
  font-size:13.5px;line-height:1.65;
  color:rgba(246,239,227,.82);
  word-break:break-word;
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,3.4vw,56px);
}
.footer-col__title{
  font-family:var(--f-mono);font-size:11px;font-weight:500;
  letter-spacing:.22em;color:var(--steel);
  padding-bottom:11px;margin-bottom:12px;
  border-bottom:1px solid var(--line-dark);
}
.footer-col__list{display:flex;flex-direction:column;gap:1px}
.footer-link{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 0;
  font-size:14.5px;color:rgba(246,239,227,.76);
  transition:color .16s var(--ease);
}
.footer-link::before{
  content:"";display:block;flex:0 0 auto;
  width:14px;height:1px;background:var(--line);
  transition:width .18s var(--ease),background-color .18s var(--ease);
}
.footer-link:hover{color:var(--cream)}
.footer-link:hover::before{width:24px;background:var(--lava)}
.site-footer__base{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:18px var(--gutter) 26px;
  border-top:1px solid rgba(246,239,227,.1);
  display:flex;flex-wrap:wrap;gap:10px 28px;
  align-items:center;justify-content:space-between;
}
.footer-legal,.footer-note{
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--steel);margin:0;
}

/* 10. 章节头、引导标签与正文 ---------------------------------------------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--steel);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lava);flex:0 0 auto}

.sec-index{
  display:inline-grid;place-items:center;
  min-width:36px;height:26px;padding:0 8px;
  background:var(--lava);color:var(--carbon);
  font-family:var(--f-mono);font-size:12px;font-weight:700;letter-spacing:.08em;
  line-height:1;
}
.section-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:12px 18px;
  padding-bottom:14px;margin-bottom:clamp(20px,3vw,32px);
  border-bottom:1px solid var(--line-light);
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.05}
.section-head__note{
  margin-left:auto;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;
  color:var(--steel);
}

.data-num{
  font-family:var(--f-display);font-weight:800;
  font-size:clamp(44px,6vw,88px);line-height:.9;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  color:var(--ink);
}
.lede{
  font-size:clamp(16px,1.2vw,19px);line-height:1.72;
  color:var(--ink-soft);max-width:62ch;
}
.prose{max-width:70ch}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{margin-top:1.7em;margin-bottom:.5em}
.prose ul,.prose ol{margin-top:.8em;padding-left:1.2em;list-style:disc}
.prose li{margin-top:.4em}

/* 11. 面包屑 --------------------------------------------------------------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--steel);
}
.breadcrumb a{
  color:var(--ink-soft);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.breadcrumb a:hover{color:var(--lava-deep);border-bottom-color:var(--lava)}
.breadcrumb__sep{color:var(--steel-lt)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:500}

/* 12. 标签与内容卡 --------------------------------------------------------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 8px;border:1px solid var(--line-light);border-radius:1px;
  font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;
  color:var(--steel-deep);white-space:nowrap;
}
.tag--lava{color:var(--lava-deep);border-color:rgba(185,50,8,.4);background:rgba(255,90,31,.09)}
.tag--lime{color:#3B4A00;border-color:rgba(199,255,63,.9);background:rgba(199,255,63,.3)}
.tag--steel{color:var(--steel-deep);border-color:var(--steel-lt);background:rgba(197,210,220,.3)}

.panel{
  background:var(--cream);
  border:1px solid var(--line-light);
  border-radius:var(--r);
  box-shadow:var(--shadow);
}
.panel--paper{background:var(--paper)}

/* 13. 图片框（页面阶段放置图片占位） --------------------------------------- */
.img-frame{
  position:relative;display:block;overflow:hidden;
  background-color:var(--ink);
  background-image:repeating-linear-gradient(135deg,rgba(246,239,227,.055) 0 1px,transparent 1px 10px);
  border:1px solid var(--line);
  border-radius:var(--r);
}
.img-frame img{
  width:100%;height:100%;object-fit:cover;
  display:block;
}
.img-frame--wide{aspect-ratio:16/9}
.img-frame--tall{aspect-ratio:3/4}
.img-frame--square{aspect-ratio:1/1}
.img-frame--band{aspect-ratio:21/9}
.img-frame__cap{
  position:absolute;left:0;bottom:0;
  padding:6px 11px;
  background:rgba(14,15,16,.84);
  color:var(--cream);
  font-family:var(--f-mono);font-size:10.5px;letter-spacing:.14em;
}

/* 14. 筛选条（页面筛选交互） ----------------------------------------------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:12px 0;
  border-top:1px solid var(--line-light);
  border-bottom:1px solid var(--line-light);
}
.filter-btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border:1px solid var(--line-light);border-radius:var(--r);
  background:transparent;color:var(--ink);
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.filter-btn:hover{border-color:var(--lava);color:var(--lava-deep)}
.filter-btn.is-active,
.filter-btn[aria-pressed="true"]{background:var(--carbon);border-color:var(--carbon);color:var(--cream)}
.filter-count{
  margin-left:auto;
  font-family:var(--f-mono);font-size:11.5px;letter-spacing:.12em;
  color:var(--steel);
}

.is-pulse{
  outline:1px solid var(--lime);
  outline-offset:2px;
  animation:pulseLime .6s var(--ease) 1;
}
@keyframes pulseLime{
  0%{box-shadow:0 0 0 0 rgba(199,255,63,.55)}
  100%{box-shadow:0 0 0 12px rgba(199,255,63,0)}
}

/* 15. 滚动显现 ------------------------------------------------------------- */
.js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* 16. 响应式 --------------------------------------------------------------- */
@media (max-width:1180px){
  .cmd-status{display:none}
  .site-nav__link{padding:9px 9px;font-size:13.5px}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .cmd-bar__aside{margin-left:auto}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    margin-left:0;
    display:none;
    padding:8px var(--gutter) 18px;
    background:var(--carbon);
    border-top:1px solid var(--line-dark);
    border-bottom:1px solid rgba(246,239,227,.2);
    box-shadow:0 26px 44px -34px #000;
    max-height:calc(100dvh - var(--bar-h));
    overflow-y:auto;
    overscroll-behavior:contain;
  }
  .site-nav[data-open="true"]{display:block;animation:navDrop .24s var(--ease) both}
  @keyframes navDrop{
    from{opacity:0;transform:translateY(-6px)}
    to{opacity:1;transform:none}
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    display:flex;width:100%;
    padding:13px 4px;border-radius:0;
    border-bottom:1px solid rgba(246,239,227,.09);
    font-size:16px;
  }
  .site-nav__link:hover{background:transparent;color:var(--lava)}
  .site-nav__link[aria-current="page"]{
    background:transparent;color:var(--lava);
    border-bottom-color:rgba(255,90,31,.45);
  }
  .site-nav__link[aria-current="page"] .site-nav__idx{color:var(--lava);opacity:1}

  .site-footer__top{grid-template-columns:minmax(0,1fr)}
  .grid--3,.grid--4,.grid--asym{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  .cmd-bar__aside{display:none}
  .brand__tag{display:none}
  .brand__name{font-size:19px}
}

@media (max-width:640px){
  .grid--2,.grid--3,.grid--4,.grid--asym{grid-template-columns:minmax(0,1fr)}
  .footer-nav{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-contact li{grid-template-columns:40px minmax(0,1fr);gap:10px}
  .site-footer__base{flex-direction:column;align-items:flex-start}
  .filter-count{margin-left:0;width:100%}
}

/* 17. 焦点与减弱动效 ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .read-progress__bar{transition:none}
  .cmd-status__dot{animation:none}
}