/* =========================================================
   爱游戏赛场 · 共享站级样式 /assets/site.css
   夜场战术板：碳黑+深墨绿底、荧光青柠数据高亮、电光橙状态、
   冷银灰细线网格、奶油纸色展览标签
   ========================================================= */

:root{
  --ink:#0B0F0D;
  --moss:#10251C;
  --moss-2:#1C3A2C;
  --brown:#1A1410;
  --silver:#C7CFCB;
  --mist:#F2F5F3;
  --lime:#C8FF3D;
  --orange:#FF6A2B;
  --cream:#F4EAD5;
  --verdigris:#6E8B84;
  --line:rgba(199,207,203,.22);
  --line-strong:rgba(199,207,203,.42);
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --wrap:1180px;
  --gap:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:170px}
body{
  margin:0;
  background:var(--ink);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.65;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;margin:0;padding:0}
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%}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
::selection{background:var(--lime);color:var(--ink)}

/* 战术板细线网格纹理 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(199,207,203,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(199,207,203,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 25%,transparent 78%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 25%,transparent 78%);
}
.site-main,.site-footer{position:relative;z-index:1}

.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}

/* ---------- 容器 ---------- */
.wrap{width:min(100% - 40px,var(--wrap));margin-inline:auto}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;left:12px;top:-70px;z-index:200;
  background:var(--lime);color:var(--ink);
  padding:10px 16px;font-size:14px;font-weight:700;letter-spacing:.08em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(11,15,13,.98),rgba(11,15,13,.93));
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.scroll-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;pointer-events:none}
.scroll-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--lime),var(--orange));transition:width .12s linear}

.header-utility{border-bottom:1px solid var(--line)}
.header-utility-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:9px 0;font-size:12px;letter-spacing:.1em;color:var(--verdigris);
}
.utility-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}
.utility-item{font-family:var(--font-mono);white-space:nowrap}
.utility-sep{color:rgba(199,207,203,.3)}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--cream);color:var(--brown);
  font-size:11px;font-weight:700;letter-spacing:.12em;
  padding:4px 10px;white-space:nowrap;
}
.status-dot{width:6px;height:6px;background:var(--orange);flex:none}

.masthead{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:20px;padding:16px 0 14px;
}
.masthead-side{display:flex;align-items:center;min-width:0}
.masthead-left{justify-content:flex-start}
.masthead-right{justify-content:flex-end}
.masthead-brand{justify-self:center;text-align:center;min-width:0}

.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  width:38px;height:38px;flex:none;display:grid;place-items:center;
  background:var(--lime);color:var(--brown);
  font-size:19px;font-weight:800;line-height:1;
}
.brand-text{display:flex;flex-direction:column;text-align:left}
.brand-name{font-size:clamp(20px,2.6vw,28px);font-weight:800;letter-spacing:.1em;line-height:1.15;color:var(--mist)}
.brand-tagline{margin-top:3px;font-size:11px;letter-spacing:.2em;color:var(--verdigris);white-space:nowrap}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:8px 11px;border:1px solid var(--line-strong);
  color:var(--silver);transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime)}
.nav-toggle-bars{display:grid;gap:3px;width:16px}
.nav-toggle-bars i{display:block;height:2px;background:currentColor}
.nav-toggle-text{font-size:12px;letter-spacing:.16em}

.nav-row{border-top:1px solid var(--line)}
.main-nav{display:flex;justify-content:center}
.nav-list{display:flex;flex-wrap:wrap;justify-content:center;gap:2px}
.nav-item{position:relative}
.nav-link{
  display:block;padding:13px 18px;
  font-size:15px;letter-spacing:.1em;color:var(--silver);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--mist);background:rgba(200,255,61,.07)}
.nav-link[aria-current="page"]{color:var(--lime)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:18px;right:18px;bottom:6px;
  height:2px;background:var(--lime);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;font-size:14px;font-weight:700;letter-spacing:.1em;
  border:1px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--mist);border-color:var(--mist);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--mist);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--lime);border-color:var(--lime);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--cream);border-color:rgba(244,234,213,.42)}
.btn-outline:hover{background:var(--cream);color:var(--brown);transform:translateY(-2px)}
.masthead-cta{padding:10px 16px;font-size:13px;white-space:nowrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;background:var(--brown);color:var(--silver);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.5fr;
  gap:36px 28px;padding:56px 0 44px;
}
.footer-brand{min-width:0}
.footer-brand-name{font-size:22px;font-weight:800;letter-spacing:.12em;color:var(--mist)}
.footer-brand-line{margin-top:10px;max-width:26em;font-size:13px;line-height:1.75;color:var(--verdigris)}
.footer-cta{margin-top:18px}
.footer-col{min-width:0}
.footer-heading{
  margin-bottom:14px;padding-bottom:10px;
  font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--cream);
  border-bottom:1px solid var(--line);
}
.footer-list{display:grid;gap:9px}
.footer-list a{
  font-size:14px;color:var(--silver);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-list a::before{content:"›";margin-right:8px;color:var(--verdigris)}
.footer-list a:hover{color:var(--lime);padding-left:3px}
.footer-list--plain a::before{content:none}
.footer-value{display:block;font-size:13px;line-height:1.6;color:var(--silver);word-break:break-word}
.footer-mono{font-family:var(--font-mono);letter-spacing:.02em}
.footer-note{display:block;font-size:12px;line-height:1.7;color:var(--verdigris)}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12px;letter-spacing:.08em;color:var(--verdigris);
}
.footer-legal{font-family:var(--font-mono);white-space:nowrap}
.footer-links{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.footer-links a:hover{color:var(--lime)}
.footer-icp{font-family:var(--font-mono);color:var(--silver);white-space:nowrap}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:20px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;background:var(--ink);
  border:1px solid var(--lime);color:var(--lime);
  font-size:12px;letter-spacing:.16em;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--lime);color:var(--ink)}
.to-top-arrow{font-size:13px;line-height:1}

/* ---------- 排版工具 ---------- */
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.28em;color:var(--lime);text-transform:uppercase}
.h-title{font-size:clamp(24px,3.4vw,42px);font-weight:800;line-height:1.2;letter-spacing:.02em}
.h-sub{font-size:15px;line-height:1.7;color:var(--silver);max-width:64ch}
.num,.stat-value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.rule{height:1px;background:var(--line);border:0}
.tilt-a{transform:rotate(-1.1deg)}
.tilt-b{transform:rotate(.9deg)}
.tick-grid{
  background-image:
    linear-gradient(to right,rgba(199,207,203,.08) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(199,207,203,.08) 1px,transparent 1px);
  background-size:32px 32px;
}
.label-tag{
  display:inline-block;background:var(--cream);color:var(--brown);
  font-size:11px;font-weight:700;letter-spacing:.18em;
  padding:5px 10px;transform:rotate(-1.4deg);
}

/* ---------- 章节与网格 ---------- */
.section{padding:72px 0}
.section--tight{padding:44px 0}
.section--moss{background:var(--moss)}
.section--brown{background:var(--brown)}
.section-head{display:grid;gap:10px;margin-bottom:28px}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.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-12{grid-column:span 12}

/* ---------- 面板与数据件 ---------- */
.panel{
  background:var(--moss);border:1px solid var(--line);padding:24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.panel:hover{transform:translateY(-2px);border-color:var(--lime)}
.panel--brown{background:var(--brown)}
.panel--flat:hover{transform:none;border-color:var(--line)}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
.panel-title{font-size:17px;font-weight:700;letter-spacing:.06em}

.stat{display:flex;flex-direction:column;gap:2px}
.stat-value{font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.1;color:var(--lime);text-align:right}
.stat-label{font-size:12px;letter-spacing:.16em;color:var(--verdigris);text-align:right}
.stat-strip{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
}
.stat-strip > *{background:var(--ink);padding:18px 16px}

.meter{position:relative;height:8px;background:var(--moss-2);border:1px solid var(--line);overflow:hidden}
.meter-fill{display:block;height:100%;width:var(--fill,0%);background:linear-gradient(90deg,var(--lime),var(--orange));transition:width .38s var(--ease)}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:7px 13px;
  font-size:13px;letter-spacing:.06em;color:var(--silver);
  border:1px solid var(--line-strong);background:transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{color:var(--mist);border-color:var(--silver)}
.chip.is-active,.chip[aria-pressed="true"]{background:var(--lime);color:var(--ink);border-color:var(--lime)}

.tabs{display:flex;gap:0;border-bottom:1px solid var(--line);overflow-x:auto;-webkit-overflow-scrolling:touch}
.tab{
  padding:12px 18px;font-size:14px;letter-spacing:.08em;color:var(--silver);
  border-bottom:2px solid transparent;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.tab:hover{color:var(--mist)}
.tab.is-active,.tab[aria-selected="true"]{color:var(--lime);border-bottom-color:var(--lime)}

/* ---------- 目录 / 面包屑 / 长文 ---------- */
.toc{display:grid;gap:6px}
.toc-link{
  display:block;padding:7px 0 7px 12px;font-size:13px;letter-spacing:.08em;
  color:var(--verdigris);border-left:2px solid var(--line);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.toc-link:hover{color:var(--mist)}
.toc-link.is-active{color:var(--lime);border-left-color:var(--lime)}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0;font-size:12px;letter-spacing:.12em;color:var(--verdigris);
}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb-sep{color:rgba(199,207,203,.3)}
.breadcrumb [aria-current="page"]{color:var(--silver)}

.prose{max-width:72ch;display:grid;gap:16px}
.prose h2{
  margin-top:12px;padding-left:14px;border-left:3px solid var(--lime);
  font-size:22px;font-weight:700;letter-spacing:.04em;
}
.prose h3{font-size:17px;font-weight:700;letter-spacing:.04em}
.prose p{font-size:16px;line-height:1.75;color:#DCE3DF}
.prose ul{display:grid;gap:8px}
.prose li{position:relative;padding-left:18px;font-size:16px;color:#DCE3DF}
.prose li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:2px;background:var(--lime)}
.prose a{color:var(--lime);border-bottom:1px solid rgba(200,255,61,.4)}
.prose strong{color:var(--mist);font-weight:700}

/* ---------- 图片容器（页面阶段放图） ---------- */
.media-frame{
  position:relative;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(135deg,var(--moss),var(--ink) 62%);
  aspect-ratio:16/9;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 52%,rgba(11,15,13,.74));
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-cap{
  position:absolute;left:0;bottom:0;z-index:2;
  background:var(--cream);color:var(--brown);
  font-size:11px;font-weight:700;letter-spacing:.16em;
  padding:6px 11px;transform:rotate(-1.4deg);transform-origin:left bottom;
}
.figure{display:grid;gap:10px}
.figure-note{font-size:12px;letter-spacing:.1em;color:var(--verdigris)}

/* ---------- 滚动显现 ---------- */
.js-on .reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.js-on .reveal.is-in{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .col-3,.col-4,.col-5{grid-column:span 6}
  .col-7,.col-8{grid-column:span 12}
}

/* ---------- 手机 / 窄屏 ---------- */
@media (max-width:900px){
  html{scroll-padding-top:120px}
  .header-utility-inner{justify-content:flex-end}
  .utility-line{display:none}
  .nav-toggle{display:inline-flex}
  .nav-row{border-top:0}
  .main-nav{
    display:block;width:100%;
    max-height:0;overflow:hidden;
    border-top:1px solid transparent;
    transition:max-height .34s var(--ease),border-color .2s var(--ease);
  }
  .main-nav[data-open]{max-height:70vh;overflow-y:auto;border-top-color:var(--line)}
  .nav-list{flex-direction:column;flex-wrap:nowrap;align-items:stretch;padding:6px 0 14px}
  .nav-link{padding:14px 8px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-link:hover{background:transparent}
  .nav-link[aria-current="page"]{background:linear-gradient(90deg,rgba(200,255,61,.14),transparent)}
  .nav-link[aria-current="page"]::after{left:8px;right:auto;width:24px;bottom:-1px}
  .masthead{grid-template-columns:auto 1fr auto;gap:12px;padding:12px 0}
  .masthead-brand{justify-self:center;text-align:center}
  .brand{gap:9px}
  .brand-mark{width:32px;height:32px;font-size:16px}
  .brand-name{font-size:19px;letter-spacing:.06em}
  .brand-tagline{display:none}
  .masthead-cta{padding:9px 12px;font-size:12px;letter-spacing:.06em}
}

@media (max-width:720px){
  body{font-size:16px}
  .section{padding:52px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px;padding:40px 0 32px}
  .footer-base{justify-content:flex-start;gap:8px}
}

@media (max-width:640px){
  .wrap{width:min(100% - 28px,var(--wrap))}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 12}
  .stat-strip{grid-template-columns:1fr 1fr}
  .to-top{right:12px;bottom:12px;padding:9px 11px}
  .to-top-text{display:none}
}

@media (max-width:460px){
  .footer-grid{grid-template-columns:1fr}
  .footer-legal,.footer-icp{white-space:normal}
}

/* ---------- 减少动态效果 ---------- */
@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-on .reveal{opacity:1;transform:none}
  .meter-fill{transition:none}
  .panel:hover,.btn:hover,.footer-list a:hover{transform:none;padding-left:0}
  .to-top{transform:none}
}