/* ============================================================
   平博赛场 · 共享外壳样式  /assets/site.css
   夜间赛场指挥室：深墨绿底 + 蓝图网格 + 战术青数据线
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink-bg:#05231E;
  --ink-panel:#0A342C;
  --paper:#F2F6F1;
  --tactical:#17E5B8;
  --moss:#93ADA6;
  --tactical-soft:#8CF6E2;
  --amber:#FF9A2E;
  --print:#E6DFC9;
  --data-blue:#59B4FF;
  --carbon:#020C0A;

  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono","IBM Plex Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;

  --shell:1280px;
  --gutter:clamp(16px,3.2vw,44px);
  --header-h:72px;

  --line:rgba(147,173,166,.22);
  --line-soft:rgba(147,173,166,.13);
  --line-tactical:rgba(23,229,184,.5);
  --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sheet-shadow:0 20px 44px -26px rgba(2,12,10,.92);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--ink-bg);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(147,173,166,.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(147,173,166,.07) 1px, transparent 1px);
  background-size:96px 96px,96px 96px;
}
header,main,footer,section{position:relative;z-index:1}
body[data-nav-open]{overflow:hidden}

img{max-width:100%;display:block}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.2;font-weight:800;letter-spacing:-.012em}
h1{font-size:clamp(30px,4.6vw,58px)}
h2{font-size:clamp(22px,2.6vw,34px)}
h3{font-size:clamp(18px,1.8vw,22px)}
ul,ol{margin:0 0 1.2em;padding-left:1.2em}
li{margin:0 0 .35em}
a{color:var(--tactical);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--tactical-soft)}
button{font:inherit}
:focus-visible{outline:2px solid var(--tactical);outline-offset:2px;border-radius:2px}
::selection{background:var(--tactical);color:var(--carbon)}

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

/* ---------- 3. 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(56px,8vw,112px)}
.section--panel{background:var(--ink-panel)}
.section--deep{background:var(--carbon)}
.section-index{
  display:block;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--tactical);
  margin-bottom:14px;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  top:6px;
  left:var(--gutter);
  z-index:90;
  transform:translateY(-180%);
  background:var(--tactical);
  color:var(--carbon);
  font-size:14px;
  font-weight:700;
  line-height:1;
  padding:12px 18px;
  border-radius:0 0 6px 6px;
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0);color:var(--carbon)}

/* ---------- 5. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .24s var(--ease),border-color .24s var(--ease);
}
.site-header[data-pinned]{
  background:rgba(5,35,30,.97);
  border-bottom-color:var(--tactical);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,28px);
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--header-h);
}

/* 品牌字标 */
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:9px;
  flex:0 0 auto;
  color:var(--paper);
  text-decoration:none;
}
.brand-mark{
  font-family:var(--sans);
  font-weight:900;
  letter-spacing:.01em;
  font-size:clamp(20px,2.2vw,28px);
  line-height:1;
  transition:font-size .24s var(--ease),color .18s var(--ease);
}
.brand-code{
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--tactical);
}
.brand:hover .brand-mark{color:var(--tactical-soft)}
.site-header[data-pinned] .brand-mark{font-size:20px}

/* 主导航 */
.site-nav{margin-left:auto}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.5vw,26px);
  list-style:none;
  margin:0;
  padding:0;
}
.nav-item{display:flex;align-items:center}
.nav-item::before{content:none}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 2px;
  font-size:14px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--moss);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:1px;
  background:var(--tactical);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--paper);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--amber)}

/* 右侧工具区 */
.header-utility{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.4vw,18px);
  margin-left:clamp(14px,2vw,34px);
}
.round-meter{
  display:none;
  flex-direction:column;
  gap:1px;
  padding-left:16px;
  border-left:1px solid var(--line);
  text-align:right;
}
.round-meter-label{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--moss);
}
.round-meter-value{
  font-family:var(--mono);
  font-size:14px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--tactical);
}
.header-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 15px;
  border-radius:var(--pill);
  background:var(--amber);
  color:var(--carbon);
  font-size:13px;
  font-weight:700;
  line-height:1;
  letter-spacing:.03em;
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.header-cta::before{
  content:"";
  width:7px;height:7px;
  border-radius:50%;
  background:var(--carbon);
}
.header-cta:hover{background:var(--paper);color:var(--carbon)}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0;
  background:transparent;
  border:1px solid var(--line);
  border-radius:4px;
  color:var(--paper);
  cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--tactical);color:var(--tactical)}
.nav-toggle-bar{
  display:block;
  width:18px;height:1.5px;
  background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* 滚动进度线 */
.header-progress{
  position:absolute;
  left:0;bottom:-1px;
  height:2px;width:0;
  background:var(--tactical);
  box-shadow:0 0 12px rgba(23,229,184,.55);
  transition:width .1s linear;
}

/* ---------- 6. 通用组件 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  border-radius:var(--pill);
  border:1px solid var(--line-tactical);
  background:rgba(23,229,184,.07);
  color:var(--tactical);
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  line-height:1.4;
  text-transform:uppercase;
}
.tag--amber{
  border-color:rgba(255,154,46,.5);
  background:rgba(255,154,46,.09);
  color:var(--amber);
}
.tag--paper{
  border-color:transparent;
  background:var(--print);
  color:var(--carbon);
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 22px;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-family:var(--sans);
  font-size:15px;
  font-weight:700;
  line-height:1;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn--primary{background:var(--tactical);color:var(--carbon)}
.btn--primary:hover{background:var(--tactical-soft);color:var(--carbon)}
.btn--ghost{background:transparent;border-color:var(--line-tactical);color:var(--paper)}
.btn--ghost:hover{border-color:var(--tactical);color:var(--tactical)}
.btn--amber{background:var(--amber);color:var(--carbon)}
.btn--amber:hover{background:var(--paper);color:var(--carbon)}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:18px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--moss);
}
.breadcrumb a{color:var(--moss)}
.breadcrumb a:hover{color:var(--tactical)}
.breadcrumb-sep{color:rgba(147,173,166,.45)}

.prose{
  max-width:68ch;
  font-size:17px;
  line-height:1.75;
}
.prose h2{margin-top:2em}
.prose h3{margin-top:1.6em}
.prose p{margin-bottom:1.2em}

/* ---------- 7. 栅格与面板 ---------- */
.grid{
  display:grid;
  gap:clamp(16px,2vw,26px);
}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--rail{grid-template-columns:minmax(200px,3fr) minmax(0,9fr)}
.grid-cell{min-width:0}

.panel{
  position:relative;
  background:var(--ink-panel);
  border:1px solid var(--line-soft);
  padding:clamp(18px,2.4vw,30px);
}
.panel--sheet{
  background:var(--print);
  color:var(--carbon);
  border:none;
  border-left:4px solid var(--amber);
  box-shadow:var(--sheet-shadow);
}
.panel--sheet a{color:var(--ink-bg);text-decoration:underline}

/* ---------- 8. 数据表格 ---------- */
.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}
.data-table th{
  padding:10px 12px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-family:var(--mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--moss);
}
.data-table td{
  padding:12px;
  border-bottom:1px solid var(--line-soft);
  vertical-align:baseline;
}
.data-table tbody tr{transition:background-color .16s var(--ease)}
.data-table tbody tr:hover{background:rgba(23,229,184,.06)}
.num{
  font-family:var(--mono);
  font-weight:700;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}

/* ---------- 9. 图片容器（页面阶段放 <img>） ---------- */
.media{
  position:relative;
  overflow:hidden;
  background:var(--ink-panel);
  border:1px solid var(--line-soft);
}
.media img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  aspect-ratio:16/9;
}
.media--wide img{aspect-ratio:21/9}
.media--tall img{aspect-ratio:4/5}
.media--square img{aspect-ratio:1/1}
.media-caption{
  display:block;
  padding-top:10px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--moss);
}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  background:var(--carbon);
  border-top:1px solid var(--line-soft);
  padding-top:clamp(40px,6vw,76px);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(to right, rgba(147,173,166,.06) 1px, transparent 1px);
  background-size:96px 100%;
}
.footer-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(220px,4fr) minmax(0,8fr);
  gap:clamp(28px,4vw,56px);
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:0 var(--gutter) clamp(32px,4vw,56px);
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.footer-brand .brand-mark{font-size:22px}
.footer-line{
  margin:0;
  max-width:26ch;
  font-size:14px;
  line-height:1.7;
  color:var(--moss);
}
.footer-columns{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-column-title{
  margin:0 0 14px;
  font-family:var(--mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--tactical);
}
.footer-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-list li{margin:0}
.footer-item{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:rgba(242,246,241,.82);
  word-break:break-word;
}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links li{margin:0}
.footer-links--stack{flex-direction:column;gap:8px}
.footer-links a{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--moss);
}
.footer-links a:hover{color:var(--tactical)}
.footer-base{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 28px;
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding:22px var(--gutter) 36px;
  border-top:1px solid var(--line-soft);
}
.footer-note{
  flex:1 1 320px;
  margin:0;
  max-width:64ch;
  font-size:13px;
  line-height:1.7;
  color:var(--moss);
}
.footer-copy{
  margin:0;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--moss);
}

/* ---------- 11. 显现动效 ---------- */
[data-reveal][data-armed]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .45s var(--ease),transform .45s var(--ease);
}
[data-reveal][data-seen]{
  opacity:1;
  transform:none;
}

/* ---------- 12. 响应式 ---------- */
@media (min-width:1200px){
  .round-meter{display:flex}
}

@media (max-width:1080px){
  :root{--header-h:64px}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    margin-left:0;
    padding:22px var(--gutter) 48px;
    background-color:var(--ink-bg);
    background-image:
      linear-gradient(to right, rgba(147,173,166,.10) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(147,173,166,.07) 1px, transparent 1px);
    background-size:96px 96px,96px 96px;
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s linear;
  }
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:none;
    pointer-events:auto;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    counter-reset:navidx;
  }
  .nav-item{
    counter-increment:navidx;
    display:flex;
    align-items:baseline;
    gap:16px;
    border-bottom:1px solid var(--line-soft);
  }
  .nav-item::before{
    content:"0" counter(navidx);
    flex:0 0 auto;
    font-family:var(--mono);
    font-size:12px;
    letter-spacing:.18em;
    color:var(--tactical);
  }
  .nav-link{
    flex:1;
    padding:16px 0;
    font-size:20px;
    font-weight:700;
    color:var(--paper);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--amber)}
}

@media (max-width:860px){
  .footer-inner{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:900px){
  .grid--2,.grid--3,.grid--rail{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:640px){
  body{font-size:16px}
  .footer-columns{grid-template-columns:minmax(0,1fr);gap:26px}
  .header-cta{padding:8px 12px;font-size:12px}
  .header-cta::before{width:6px;height:6px}
  .footer-copy{white-space:normal}
}

@media (max-width:420px){
  .brand-code{display:none}
}

/* ---------- 13. 降低动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
  [data-reveal][data-armed]{opacity:1;transform:none}
}