/* =========================================================
   杏运赛场 · 共享样式表 /assets/site.css
   战术白板 × Bento 信息板 · 锐利直角 · 精密网格
   ========================================================= */

:root{
  --green:#0E3B2E;
  --green-deep:#07231B;
  --orange:#F5862B;
  --orange-soft:#FFB067;
  --cyan:#1FA3B8;
  --indigo:#3B2E6E;
  --lime:#C6F24E;
  --wine:#7A1F35;
  --sand:#F4EFE6;
  --ink:#12100E;
  --ink-soft:#4A4740;
  --grid-teal:#2E6E70;
  --line:rgba(46,110,112,.45);
  --line-soft:rgba(46,110,112,.24);
  --on-dark:rgba(244,239,230,.78);
  --on-dark-strong:#F4EFE6;
  --step:6px;
  --shell:1240px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:900;line-height:1.14;letter-spacing:-.015em;font-stretch:condensed}
p{margin:0}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
#main-content{display:block}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

/* ---------- 通用工具 ---------- */
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:.01em;
}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}
.skip-link{
  position:absolute;left:14px;top:-70px;z-index:140;
  background:var(--lime);color:var(--green-deep);
  font-weight:800;font-size:14px;letter-spacing:.06em;
  padding:12px 18px;transition:top .18s var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- 头部：双层信息导航 ---------- */
.site-header{position:relative;z-index:120}

.header__band{
  background:var(--green-deep);
  color:var(--on-dark);
  border-bottom:1px solid var(--line);
}
.band__inner{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  min-height:46px;padding-top:8px;padding-bottom:8px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:26px;height:26px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--orange);color:var(--green-deep);
  font-size:14px;font-weight:900;line-height:1;
}
.brand__name{
  font-size:16px;font-weight:900;letter-spacing:.12em;color:var(--on-dark-strong);
}
.brand__motto{
  font-size:12px;letter-spacing:.2em;color:var(--orange-soft);
  padding-left:12px;border-left:1px solid var(--line);
}
.band__meta{
  margin:0 0 0 auto;
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
}
.band__chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;font-size:12px;letter-spacing:.08em;line-height:1.5;
  border:1px solid var(--line);color:var(--on-dark);white-space:nowrap;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
}
.band__chip--live{border-color:var(--lime);color:var(--lime)}
.band__chip--live::before{
  content:"";width:6px;height:6px;background:var(--lime);flex:0 0 auto;
}

.header__bar{
  position:sticky;top:0;z-index:110;
  background:var(--green);
  border-bottom:1px solid var(--grid-teal);
}
.header__bar-inner{
  position:relative;
  display:flex;align-items:center;gap:12px;
  min-height:58px;
}
.primary-nav{min-width:0}
.primary-nav__list{display:flex;flex-wrap:wrap;align-items:stretch}
.primary-nav__link{
  position:relative;display:block;
  padding:18px 14px 19px;
  font-size:15px;font-weight:700;letter-spacing:.03em;
  color:var(--on-dark);white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.primary-nav__link:hover{color:#fff;background:rgba(31,163,184,.18)}
.primary-nav__link[aria-current="page"]{color:var(--on-dark-strong)}
.primary-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:14px;right:14px;bottom:11px;height:2px;
  background:var(--orange);
}
.primary-nav__link[aria-current="page"]::before{
  content:"";position:absolute;top:14px;right:6px;width:5px;height:5px;
  background:var(--lime);
}
.header__quick{margin-left:auto;display:flex;align-items:center;gap:8px;flex:0 0 auto}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:10px 13px;
  border:1px solid var(--grid-teal);
  color:var(--on-dark);
  font-size:13px;font-weight:800;letter-spacing:.12em;
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--on-dark-strong)}
.nav-toggle[aria-expanded="true"]{border-color:var(--orange);background:rgba(245,134,43,.16);color:var(--on-dark-strong)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:2px;background:currentColor}
.nav-toggle__label{font-family:var(--font-mono)}

.read-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(244,239,230,.12);overflow:hidden;
}
.read-progress__fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--orange),var(--lime));
  transition:width .12s linear;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;
  background:var(--orange);color:var(--green-deep);
  font-size:14px;font-weight:800;letter-spacing:.05em;line-height:1.4;
  border:1px solid var(--orange);border-radius:0;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn:hover{background:var(--orange-soft);border-color:var(--orange-soft)}
.btn--ghost{background:transparent;border-color:var(--grid-teal);color:var(--on-dark-strong)}
.btn--ghost:hover{background:rgba(198,242,78,.1);border-color:var(--lime);color:var(--lime)}
.btn--sm{padding:9px 13px;font-size:13px}

/* ---------- 分区带 ---------- */
.xy-band{padding:calc(var(--step)*11) 0}
.xy-band:first-child{padding-top:calc(var(--step)*8)}
.xy-band--green{background:var(--green);color:var(--on-dark-strong)}
.xy-band--deep{background:var(--green-deep);color:var(--on-dark-strong)}
.xy-band--sand{background:var(--sand);color:var(--ink)}
.xy-band--indigo{background:var(--indigo);color:var(--on-dark-strong)}
.xy-band--wine{background:var(--wine);color:var(--on-dark-strong)}
.xy-mesh{
  background-image:
    linear-gradient(rgba(46,110,112,.3) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,110,112,.3) 1px,transparent 1px);
  background-size:36px 36px;
}

/* ---------- 栅格与内容块 ---------- */
.xy-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:calc(var(--step)*4)}
.xy-cell{grid-column:1 / -1;min-width:0}
@media (min-width:900px){
  .xy-2{grid-column:span 2}
  .xy-3{grid-column:span 3}
  .xy-4{grid-column:span 4}
  .xy-5{grid-column:span 5}
  .xy-6{grid-column:span 6}
  .xy-7{grid-column:span 7}
  .xy-8{grid-column:span 8}
  .xy-9{grid-column:span 9}
  .xy-10{grid-column:span 10}
  .xy-12{grid-column:span 12}
}
.xy-panel{
  border:1px solid var(--line);
  background:rgba(7,35,27,.35);
  padding:calc(var(--step)*4) calc(var(--step)*4);
}
.xy-band--sand .xy-panel,
.xy-band--indigo .xy-panel{background:rgba(255,255,255,.02)}
.xy-panel--flat{border:0;background:none;padding:0 0 0 16px;border-left:3px solid var(--orange)}

/* ---------- 章节标题组 ---------- */
.xy-head{margin:0 0 calc(var(--step)*6)}
.xy-head__no{
  display:block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.24em;
  color:var(--orange);font-weight:700;
}
.xy-head__title{font-size:clamp(24px,3.4vw,34px)}
.xy-head__desc{
  margin:14px 0 0;max-width:46ch;font-size:15px;line-height:1.8;
  color:var(--ink-soft);
}
.xy-band--green .xy-head__desc,
.xy-band--deep .xy-head__desc,
.xy-band--indigo .xy-head__desc,
.xy-band--wine .xy-head__desc{color:var(--on-dark)}
.xy-band--wine .xy-head__no{color:var(--orange-soft)}

/* ---------- 数字与索引 ---------- */
.xy-index{
  display:inline-block;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.2em;
  color:var(--orange);font-weight:700;
}
.xy-stat{
  display:block;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:800;letter-spacing:-.02em;line-height:1.05;
}
.xy-stat--hero{font-size:clamp(52px,9vw,96px);line-height:.94;letter-spacing:-.04em}
.xy-stat--up{color:var(--lime)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;line-height:1.5;
  border:1px solid var(--cyan);color:var(--cyan);white-space:nowrap;
}
.tag--orange{border-color:var(--orange);color:var(--orange)}
.tag--lime{border-color:var(--lime);color:var(--lime)}
.tag--wine{border-color:#C4556E;color:#F0A9B6}
.xy-band--green .tag,
.xy-band--deep .tag,
.xy-band--indigo .tag{color:var(--on-dark-strong)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:16px 0 4px;font-size:13px;letter-spacing:.05em}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"/";margin:0 10px;color:var(--cyan)}
.crumbs a{color:inherit;border-bottom:1px solid rgba(31,163,184,.6)}
.crumbs a:hover{color:var(--cyan)}
.crumbs [aria-current="page"]{color:var(--ink-soft)}
.xy-band--green .crumbs [aria-current="page"],
.xy-band--deep .crumbs [aria-current="page"]{color:var(--on-dark)}

/* ---------- 长文容器 ---------- */
.prose{max-width:44em;font-size:16px;line-height:1.8}
.prose h2{font-size:22px;margin:calc(var(--step)*8) 0 12px}
.prose h3{font-size:18px;margin:calc(var(--step)*6) 0 10px}
.prose p{margin:0 0 16px;color:var(--ink-soft)}
.prose ul,.prose ol{margin:0 0 16px;padding-left:20px;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:0 0 6px;color:var(--ink-soft)}
.prose strong{color:var(--ink)}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(31,163,184,.6)}
.prose a:hover{color:var(--orange)}
.xy-band--green .prose p,
.xy-band--deep .prose p,
.xy-band--indigo .prose p,
.xy-band--wine .prose p,
.xy-band--green .prose li,
.xy-band--deep .prose li{color:var(--on-dark)}
.xy-band--green .prose h2,
.xy-band--green .prose h3,
.xy-band--deep .prose h2,
.xy-band--deep .prose h3,
.xy-band--deep .prose strong{color:var(--on-dark-strong);}

/* ---------- 数据表 ---------- */
.xy-table{width:100%;font-size:14px}
.xy-table th,.xy-table td{
  padding:11px 12px;text-align:left;
  border-bottom:1px solid var(--line);
}
.xy-table th{
  font-family:var(--font-mono);font-size:12px;font-weight:700;
  letter-spacing:.12em;color:var(--orange-soft);text-transform:uppercase;
}
.xy-table td{color:var(--ink-soft)}
.xy-table td.num,.xy-table th.num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;
}
.xy-band--green .xy-table td,
.xy-band--deep .xy-table td{color:var(--on-dark)}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;display:block;margin:0;overflow:hidden;
  min-height:180px;
  border:1px solid var(--line);
  background-color:var(--green-deep);
  background-image:
    repeating-linear-gradient(135deg,rgba(31,163,184,.14) 0 2px,transparent 2px 12px),
    linear-gradient(160deg,var(--green),var(--green-deep));
}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.media--wide img{aspect-ratio:21/9}
.media--tall img{aspect-ratio:3/4}
.media--square img{aspect-ratio:1/1}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(198,242,78,.14);
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:26px 14px 12px;
  background:linear-gradient(180deg,transparent,rgba(7,35,27,.92));
  color:var(--on-dark-strong);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;line-height:1.6;
}

/* ---------- 显现与状态 ---------- */
.js-reveal{opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease)}
.js-reveal.is-in{opacity:1;transform:none}
.is-hidden{display:none!important}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--green-deep);color:var(--on-dark);
  border-top:4px solid var(--orange);
  padding-top:calc(var(--step)*10);
  font-size:14px;
}
.footer__grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:calc(var(--step)*7);
}
.footer__col{min-width:0}
.footer__col--brand{grid-column:span 1}
.footer__mark{
  font-size:20px;font-weight:900;letter-spacing:.14em;
  color:var(--on-dark-strong);margin-bottom:12px;
}
.footer__note{margin:0 0 10px;line-height:1.8;color:var(--on-dark);word-break:break-word}
.footer__sign{
  margin-top:16px;font-size:13px;letter-spacing:.06em;
  color:var(--cyan);
}
.footer__title{
  margin:0 0 16px;padding-bottom:10px;
  font-family:var(--font-mono);font-size:12px;font-weight:700;
  letter-spacing:.24em;color:var(--orange);
  border-bottom:1px solid var(--line);
}
.footer__list{display:grid;gap:0}
.footer__list--split{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}
.footer__link{
  display:block;padding:8px 0;
  font-size:14px;color:var(--on-dark);
  border-bottom:1px solid var(--line-soft);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer__link:hover{color:var(--lime);border-color:var(--lime)}

.footer__legal{
  margin-top:calc(var(--step)*9);
  border-top:1px solid var(--line);
  padding-top:18px;padding-bottom:28px;
}
.footer__legal-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;
  font-size:13px;color:rgba(244,239,230,.62);
}
.legal__links{display:flex;flex-wrap:wrap;gap:22px;margin-left:auto}
.footer__link--legal{
  display:inline-block;padding:0 0 2px;
  color:rgba(244,239,230,.72);
  border-bottom:1px solid var(--line);
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer__link--legal:hover{color:var(--lime);border-color:var(--lime)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .primary-nav__link{padding:18px 10px 19px;font-size:14px}
  .primary-nav__link[aria-current="page"]::after{left:10px;right:10px}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .header__quick .btn{display:none}
  .primary-nav{
    display:none;
    position:absolute;left:-24px;right:-24px;top:100%;
    background:var(--green-deep);
    border-bottom:2px solid var(--orange);
    border-top:1px solid var(--grid-teal);
    max-height:72vh;overflow:auto;
  }
  .primary-nav[data-open="true"]{display:block}
  .primary-nav__list{flex-direction:column;align-items:stretch}
  .primary-nav__link{
    padding:15px 24px;
    border-bottom:1px solid var(--line-soft);
    font-size:15px;
  }
  .primary-nav__link[aria-current="page"]{background:rgba(245,134,43,.12)}
  .primary-nav__link[aria-current="page"]::after{left:24px;right:auto;width:22px;bottom:10px}
  .primary-nav__link[aria-current="page"]::before{top:20px;right:24px}

  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:calc(var(--step)*6)}
  .footer__col--brand{grid-column:1 / -1}
  .legal__links{margin-left:0}
}

@media (max-width:720px){
  .brand__motto{display:none}
  .band__meta .band__chip:not(.band__chip--live){display:none}
  .band__inner{min-height:42px;gap:12px}
}

@media (max-width:640px){
  .shell{padding:0 18px}
  .xy-band{padding:calc(var(--step)*8) 0}
  .xy-band:first-child{padding-top:calc(var(--step)*6)}
  .prose{font-size:15.5px}
  .footer__grid{grid-template-columns:1fr;gap:calc(var(--step)*6)}
  .footer__list--split{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__legal-inner{font-size:12px}
  .legal__links{gap:18px}
}

/* ---------- 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;
  }
  .js-reveal{opacity:1;transform:none}
}