/* ==========================================================================
   亿电竞 · 共享外壳样式  /assets/site.css
   蓝图网格 · 切角面板 · 信号色体系
   ========================================================================== */

:root{
  --deep:#05070F;
  --panel:#0E1524;
  --zone:#16233D;
  --line:#1E2A40;
  --cyan:#2CE8E0;
  --magenta:#FF3E8E;
  --yellow:#E9FF57;
  --orange:#FF8A3D;
  --ink:#E9EEF8;
  --ink-dim:#94A3C4;

  --shell-max:1280px;
  --gap:24px;
  --notch:18px;
  --ease:cubic-bezier(.2,.7,.3,1);

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:150px;
}
body{
  margin:0;
  min-height:100%;
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  background-color:var(--deep);
  background-image:
    linear-gradient(to right, rgba(30,42,64,.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30,42,64,.55) 1px, transparent 1px);
  background-size:80px 80px;
  background-position:center top;
  overflow-x:hidden;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:900;
  pointer-events:none;
  opacity:.6;
  background:repeating-linear-gradient(
    180deg,
    rgba(233,238,248,.05) 0 1px,
    rgba(233,238,248,0) 1px 5px
  );
  animation:scan-shift 8s linear infinite;
}
@keyframes scan-shift{
  from{background-position:0 0}
  to{background-position:0 160px}
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--yellow)}
button{font:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ---------- 通用容器与基础组件 ---------- */
.shell{
  width:100%;
  max-width:var(--shell-max);
  margin:0 auto;
  padding:0 24px;
}
.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}
.slash-divider{
  height:1px;
  border:0;
  background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent);
}
.panel{
  position:relative;
  padding:20px;
  background:var(--panel);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - var(--notch)) 0,100% var(--notch),100% 100%,0 100%);
}
.panel--notch-bl{
  clip-path:polygon(0 0,100% 0,100% 100%,var(--notch) 100%,0 calc(100% - var(--notch)));
}
.plate{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:3px 10px 3px 8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--cyan);
  background:rgba(44,232,224,.08);
  border:1px solid rgba(44,232,224,.35);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
}
.plate__code{color:var(--ink-dim)}
.tag{
  display:inline-block;
  padding:2px 8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.6;
  color:var(--cyan);
  border:1px solid currentColor;
}
.tag--cyan{color:var(--cyan)}
.tag--magenta{color:var(--magenta)}
.tag--yellow{color:var(--yellow)}
.tag--orange{color:var(--orange)}
.tag--muted{color:var(--ink-dim)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat__num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(32px,4vw,56px);
  line-height:1;
  letter-spacing:-.02em;
  color:var(--yellow);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--ink-dim);
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:8px 20px;
  padding-bottom:12px;
  margin-bottom:24px;
  border-bottom:1px solid var(--line);
}
.section-head__title{
  font-family:var(--font-sans);
  font-weight:800;
  font-size:clamp(20px,2.4vw,30px);
  line-height:1.2;
  letter-spacing:.01em;
}
.section-head__meta{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--ink-dim);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.prose{
  max-width:72ch;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{
  font-family:var(--font-sans);
  font-weight:800;
  line-height:1.3;
  margin:1.6em 0 .6em;
}
.prose h2{font-size:24px}
.prose h3{font-size:19px}
.prose ul{margin:.8em 0}
.prose li{
  position:relative;
  padding-left:18px;
  line-height:1.9;
}
.prose li::before{
  content:"/";
  position:absolute;
  left:0;
  color:var(--cyan);
}
.prose a{border-bottom:1px solid rgba(44,232,224,.4)}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-dim);
}
.breadcrumb__item{color:var(--ink-dim)}
.breadcrumb__item + .breadcrumb__item::before{
  content:"/";
  margin-right:8px;
  color:var(--line);
}
.breadcrumb a{color:var(--ink-dim)}
.breadcrumb a:hover{color:var(--cyan)}

/* 响应式图片容器（页面阶段放 <img>） */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(22,35,61,.9),rgba(14,21,36,.95));
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - var(--notch)) 0,100% var(--notch),100% 100%,0 100%);
}
.media-frame > img,
.media-frame > picture > img,
.media-frame > video,
.media-frame > svg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(115deg,rgba(44,232,224,.12),transparent 45%,rgba(255,62,142,.1));
}
.media-frame__badge{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:6px 12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:#04121A;
  background:var(--cyan);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--portrait{aspect-ratio:3/4}

/* 脉冲点 */
.pulse-dot{
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--cyan);
  vertical-align:middle;
  animation:pulse-ring 1.2s ease-out infinite;
}
@keyframes pulse-ring{
  0%{box-shadow:0 0 0 0 rgba(44,232,224,.6)}
  70%{box-shadow:0 0 0 8px rgba(44,232,224,0)}
  100%{box-shadow:0 0 0 0 rgba(44,232,224,0)}
}

/* 按钮 */
.btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 20px;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  line-height:1.3;
  color:var(--ink);
  background:transparent;
  border:1px solid var(--line);
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{
  color:#04121A;
  background:var(--cyan);
  border-color:var(--cyan);
}
.btn--primary:hover{
  color:#141A00;
  background:var(--yellow);
  border-color:var(--yellow);
}
.btn--ghost{
  color:var(--cyan);
  background:rgba(44,232,224,.08);
  border-color:rgba(44,232,224,.4);
}
.btn--ghost:hover{
  color:var(--yellow);
  border-color:var(--yellow);
}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-60px;
  z-index:120;
  padding:10px 16px;
  font-size:14px;
  color:#04121A;
  background:var(--yellow);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:8px;color:#04121A}

/* ---------- 刊头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:linear-gradient(180deg,rgba(5,7,15,.99),rgba(5,7,15,.94));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
}
.masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:16px;
  padding-top:18px;
  padding-bottom:14px;
}
.masthead__meta{
  display:flex;
  flex-wrap:nowrap;
  align-items:center;
  gap:16px;
  min-width:0;
  overflow:hidden;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--ink-dim);
  white-space:nowrap;
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item .pulse-dot{margin-right:0}
.meta-item__value{color:var(--cyan);font-weight:700}

.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  color:var(--ink);
  text-align:center;
}
.brand:hover{color:var(--ink)}
.brand__mark{
  font-family:var(--font-serif);
  font-weight:700;
  font-size:34px;
  line-height:1.1;
  letter-spacing:.2em;
  text-indent:.2em;
  transition:font-size .2s var(--ease),text-shadow .2s var(--ease);
}
.brand:hover .brand__mark{text-shadow:0 0 18px rgba(44,232,224,.5)}
.brand__sub{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.3em;
  text-indent:.3em;
  color:var(--cyan);
}
.header-actions{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:10px;
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:10px 14px;
  color:var(--ink);
  background:rgba(22,35,61,.75);
  border:1px solid var(--line);
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:var(--cyan);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:var(--cyan);
  transition:transform .2s var(--ease),top .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:var(--yellow)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg);background:var(--yellow)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg);background:var(--yellow)}
.nav-toggle__text{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
}

/* 栏目导航 */
.site-nav{width:100%}
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:2px 26px;
  width:100%;
  max-width:var(--shell-max);
  margin:0 auto;
  padding:0 24px 10px;
}
.site-nav__list a{
  display:block;
  padding:4px 0;
  font-size:14px;
  letter-spacing:.04em;
  color:var(--ink-dim);
  border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.site-nav__list a:hover{color:var(--ink)}
.site-nav__list a[aria-current="page"]{
  color:var(--yellow);
  border-bottom-color:var(--yellow);
}

/* 项目大类带 */
.genre-strip{
  background:rgba(22,35,61,.55);
  border-top:1px solid var(--line);
}
.genre-strip__inner{
  display:flex;
  align-items:center;
  gap:10px;
  width:100%;
  max-width:var(--shell-max);
  margin:0 auto;
  padding:9px 24px;
  overflow-x:auto;
  scrollbar-width:none;
}
.genre-strip__inner::-webkit-scrollbar{display:none}
.genre-strip__label{
  flex:0 0 auto;
  margin-right:4px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--ink-dim);
}
.chip{
  flex:0 0 auto;
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--ink-dim);
  background:rgba(14,21,36,.9);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,0 100%);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{color:var(--cyan);border-color:rgba(44,232,224,.5)}

/* 阅读进度 */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  overflow:hidden;
  background:transparent;
}
.scroll-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--yellow) 55%,var(--magenta));
  will-change:transform;
}

/* 刊头收窄态 */
.site-header.is-condensed .masthead{
  padding-top:8px;
  padding-bottom:8px;
}
.site-header.is-condensed .brand__mark{font-size:21px}
.site-header.is-condensed .brand__sub{display:none}
.site-header.is-condensed .genre-strip{display:none}
.site-header.is-condensed .masthead__meta{font-size:10px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:72px;
  padding:48px 0 26px;
  background:linear-gradient(180deg,rgba(22,35,61,.55),var(--deep) 58%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.45;
  background-image:linear-gradient(to right,rgba(30,42,64,.85) 1px,transparent 1px);
  background-size:80px 100%;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.6fr repeat(3,minmax(0,1fr));
  gap:32px 28px;
}
.footer-brand{
  display:flex;
  flex-direction:column;
  gap:12px;
  align-items:flex-start;
}
.brand--footer{align-items:flex-start;text-align:left}
.brand--footer .brand__mark{font-size:26px}
.brand--footer .brand__sub{text-align:left}
.footer-brand__tagline{
  font-size:14px;
  color:var(--ink);
  letter-spacing:.02em;
}
.footer-brand__note{
  max-width:34ch;
  font-size:13px;
  line-height:1.8;
  color:var(--ink-dim);
}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--cyan);
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__list a{
  font-size:14px;
  color:var(--ink-dim);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.footer-col__list a:hover{
  color:var(--cyan);
  padding-left:4px;
}
.footer-contact{
  grid-column:1 / -1;
  margin-top:4px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  line-height:2;
  letter-spacing:.04em;
  color:var(--ink-dim);
}
.footer-note{
  grid-column:1 / -1;
  margin-top:-24px;
  font-size:12.5px;
  color:var(--ink-dim);
}
.footer-bottom{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 24px;
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink-dim);
}
.footer-icp{color:var(--ink-dim)}
.footer-copy{color:var(--ink-dim)}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  font-family:var(--font-sans);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--cyan);
  background:rgba(44,232,224,.08);
  border:1px solid rgba(44,232,224,.4);
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,0 100%);
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.to-top:hover{
  color:var(--yellow);
  background:rgba(233,255,87,.1);
  border-color:rgba(233,255,87,.55);
}
.to-top.is-awake{color:var(--yellow);border-color:rgba(233,255,87,.5)}

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

/* ---------- 平板 ---------- */
@media (max-width:1000px){
  .masthead{
    grid-template-columns:minmax(0,1fr) auto;
    gap:12px;
    padding-top:12px;
    padding-bottom:10px;
  }
  .masthead__meta{display:none}
  .brand{align-items:flex-start;text-align:left}
  .brand__mark{font-size:26px;letter-spacing:.16em;text-indent:.16em}
  .brand__sub{text-align:left;font-size:10px;letter-spacing:.24em;text-indent:.24em}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    background:var(--deep);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(0,0,0,.5);
    transition:max-height .3s var(--ease),visibility 0s linear .3s;
  }
  .site-nav[data-open="true"]{
    visibility:visible;
    max-height:min(70vh,480px);
    overflow-y:auto;
    transition:max-height .3s var(--ease),visibility 0s linear 0s;
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:6px 24px 14px;
    max-width:none;
  }
  .site-nav__list li + li{border-top:1px solid var(--line)}
  .site-nav__list a{
    padding:13px 0;
    font-size:15px;
  }
  .site-nav__list a[aria-current="page"]{
    border-bottom-color:transparent;
    color:var(--yellow);
  }

  .footer-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:28px 24px;
  }
  .footer-brand{grid-column:1 / -1}
  .footer-contact{margin-top:0}
  .footer-note{margin-top:-18px}
}

/* ---------- 手机 ---------- */
@media (max-width:640px){
  body{font-size:15px;background-size:56px 56px}
  .shell{padding:0 16px}
  .brand__mark{font-size:22px}
  .header-actions .btn{padding:9px 14px;font-size:13px}
  .genre-strip__inner{padding:8px 16px}
  .site-nav__list{padding:6px 16px 14px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-contact{font-size:11.5px;word-break:break-word}
  .footer-bottom{justify-content:flex-start}
  .to-top{order:-1}
  .grid-12{grid-template-columns:minmax(0,1fr)}
  .panel{padding:16px}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  body::after{display:none}
  .pulse-dot{box-shadow:none}
  .js [data-reveal]{opacity:1 !important;transform:none !important}
  .btn:hover{transform:none}
}