/* ============================================================
   安博电竞 · 共享外壳样式 /assets/site.css
   深空黑底 + 指挥舱面板 + 冷光青轨道导航
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

/* ---------- 2. 变量 ---------- */
:root{
  --ink:#070A12;
  --panel:#10161F;
  --glass:#1B2431;
  --cyan:#35E1D6;
  --violet:#7B4DFF;
  --lime:#A8FF45;
  --amber:#FFA733;
  --coral:#FF6B57;
  --text:#E6EDF6;
  --muted:#8A97AC;
  --line:#26313F;

  --rail-w:132px;
  --bar-h:62px;
  --gap:32px;
  --radius:2px;
  --wrap:1180px;

  --font-display:"Oswald","Barlow Condensed","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 3. 基础 ---------- */
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
  padding-top:var(--bar-h);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(180deg,transparent calc(100% - 1px),rgba(53,225,214,.07) calc(100% - 1px)),
    linear-gradient(90deg,transparent calc(100% - 1px),rgba(53,225,214,.05) calc(100% - 1px));
  background-size:48px 48px;
  opacity:.7;
}
body::after{
  content:"";position:fixed;left:0;right:0;top:0;height:200px;z-index:3;pointer-events:none;
  background:linear-gradient(180deg,rgba(53,225,214,0),rgba(53,225,214,.06) 55%,rgba(53,225,214,0));
  animation:scanDown 12s linear infinite;
}
@keyframes scanDown{
  0%{transform:translateY(-220px)}
  100%{transform:translateY(105vh)}
}
@keyframes softPulse{
  0%{box-shadow:0 0 0 0 rgba(255,167,51,.55)}
  70%{box-shadow:0 0 0 9px rgba(255,167,51,0)}
  100%{box-shadow:0 0 0 0 rgba(255,167,51,0)}
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.1;letter-spacing:-.02em}
p{max-width:68ch}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}
::selection{background:var(--cyan);color:#04121a}
.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}

/* ---------- 4. 布局原子 ---------- */
.page-shell{position:relative;z-index:2;padding-bottom:8px}
.container{width:min(100% - 32px,var(--wrap));margin-inline:auto}
.stack{display:flex;flex-direction:column;gap:var(--gap)}
.grid{display:grid;gap:18px;grid-template-columns:1fr}
.grid--2,.grid--3{grid-template-columns:1fr}
@media (min-width:768px){
  .container{width:min(100% - 56px,var(--wrap))}
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}

.panel{
  position:relative;
  padding:clamp(20px,3vw,38px);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel--glass{
  background:linear-gradient(150deg,rgba(27,36,49,.8),rgba(16,22,31,.62));
  border-color:rgba(53,225,214,.18);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.panel--overlap{margin-top:calc(var(--gap) * -.45);z-index:2}
.panel--cyan{border-top:2px solid var(--cyan)}
.panel--violet{border-top:2px solid var(--violet)}
.panel--amber{border-top:2px solid var(--amber)}
.panel--lime{border-top:2px solid var(--lime)}

.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 20px;justify-content:space-between}
.section-head__title{font-family:var(--font-display);font-weight:900;font-size:clamp(26px,4vw,46px);line-height:1.04;letter-spacing:-.02em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.editorial{
  font-family:var(--font-serif);
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.85;
  color:#CBD7E6;
  max-width:44em;
}
.mono{font-family:var(--font-mono);letter-spacing:.04em}
.metric{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(28px,5vw,54px);line-height:1;letter-spacing:.02em;color:var(--text);
}

/* ---------- 5. 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;border-radius:999px;
  border:1px solid var(--line);background:rgba(27,36,49,.6);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);white-space:nowrap;
}
.tag--new{color:var(--amber);border-color:rgba(255,167,51,.45);background:rgba(255,167,51,.08)}
.tag--up{color:var(--lime);border-color:rgba(168,255,69,.4);background:rgba(168,255,69,.07)}
.tag--cyan{color:var(--cyan);border-color:rgba(53,225,214,.4);background:rgba(53,225,214,.07)}
.tag--violet{color:#B79BFF;border-color:rgba(123,77,255,.5);background:rgba(123,77,255,.12)}
.tag--alert{color:var(--coral);border-color:rgba(255,107,87,.45);background:rgba(255,107,87,.08)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 22px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(27,36,49,.72);
  color:var(--text);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;
  text-transform:uppercase;
  transition:transform .22s ease,border-color .22s ease,color .22s ease,background .22s ease;
}
.btn:hover{transform:translateY(-2px);border-color:var(--cyan);color:var(--cyan)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04121A;font-weight:700}
.btn--primary:hover{background:#5AF0E6;color:#04121A;border-color:#5AF0E6}
.btn--violet{background:rgba(123,77,255,.18);border-color:rgba(123,77,255,.55);color:#CDBBFF}
.btn--violet:hover{background:var(--violet);color:#F3EEFF;border-color:var(--violet)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--muted)}
.btn--ghost:hover{color:var(--text);border-color:var(--cyan);background:rgba(53,225,214,.06)}

/* ---------- 7. 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;
  padding:20px 0 6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:var(--muted);
}
.breadcrumbs li{display:flex;align-items:center;gap:10px}
.breadcrumbs li + li::before{content:"/";color:var(--line)}
.breadcrumbs a{color:var(--muted);transition:color .2s ease}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs [aria-current="page"]{color:var(--text)}

/* ---------- 8. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  background:linear-gradient(160deg,#141C27,#070A12 78%);
  border:1px solid var(--line);border-radius:var(--radius);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(53,225,214,.09) 0 1px,transparent 1px 4px);
  opacity:.7;
}
.media-frame__img,
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  filter:contrast(1.1) saturate(.92) brightness(.82);
}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--21x9{aspect-ratio:21 / 9}
.media-frame__caption{
  position:absolute;left:0;bottom:0;right:0;
  padding:12px 14px;
  background:linear-gradient(180deg,rgba(7,10,18,0),rgba(7,10,18,.9));
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--muted);
}

/* ---------- 9. 显现动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ============================================================
   10. 头部外壳
   ============================================================ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:var(--bar-h);
  display:flex;align-items:center;gap:10px;
  padding:0 12px;
  background:rgba(7,10,18,.9);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(0,0,0,.5)}

.skip-link{
  position:absolute;left:12px;top:10px;z-index:200;
  transform:translateY(-180%);
  padding:9px 16px;border-radius:var(--radius);
  background:var(--cyan);color:#04121A;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  transition:transform .22s ease;
}
.skip-link:focus{transform:translateY(0)}

.brand-block{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.brand{display:flex;flex-direction:column;gap:2px;min-width:0;color:var(--text)}
.brand__mark{
  font-family:var(--font-display);font-weight:900;
  font-size:19px;line-height:1;letter-spacing:.04em;
}
.brand__sub{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--muted);
}
.build-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 8px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(27,36,49,.7);
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;white-space:nowrap;
}
.build-tag__key{color:var(--violet)}
.build-tag__val{color:var(--cyan)}

.nav-toggle{
  order:-1;flex:none;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 11px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(27,36,49,.7);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--text);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:space-between;width:16px;height:12px}
.nav-toggle__bars i{display:block;height:1.5px;border-radius:2px;background:var(--cyan);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5.2px) 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(-5.2px) rotate(-45deg)}

/* 侧边轨道（移动端为抽屉） */
.rail-nav{
  position:fixed;top:0;left:0;bottom:0;z-index:96;
  width:min(84vw,320px);
  display:flex;flex-direction:column;
  padding:calc(var(--bar-h) + 18px) 0 32px;
  background:linear-gradient(180deg,#10161F,#070A12 72%);
  border-right:1px solid var(--line);
  overflow-y:auto;
  transform:translateX(-102%);
  visibility:hidden;
  transition:transform .32s cubic-bezier(.22,.9,.28,1),visibility .32s;
}
.rail-nav[data-open]{transform:translateX(0);visibility:visible}
.rail-nav__label{
  display:block;padding:0 20px 12px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--muted);
}
.rail-nav__list{display:flex;flex-direction:column;gap:4px;padding:0 10px}
.rail-nav__link{
  display:block;
  padding:10px 12px;
  border-left:2px solid transparent;
  color:var(--muted);
  font-size:14px;letter-spacing:.02em;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.rail-nav__idx{
  display:block;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--line);
}
.rail-nav__text{display:block;line-height:1.35}
.rail-nav__link:hover{color:var(--text);background:rgba(53,225,214,.07)}
.rail-nav__link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(53,225,214,.1);
  border-left-color:var(--cyan);
}
.rail-nav__link[aria-current="page"] .rail-nav__idx{color:var(--cyan);opacity:.7}
.rail-nav__progress{display:none}

/* 订阅浮标 */
.float-dock{display:flex;align-items:center;gap:8px;flex:none}
.sub-float{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:999px;
  border:1px solid rgba(255,167,51,.42);
  background:rgba(16,22,31,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  font-size:13px;color:var(--text);white-space:nowrap;
  transition:transform .22s ease,border-color .22s ease,color .22s ease;
}
.sub-float:hover{transform:translateY(-2px);border-color:var(--amber);color:var(--amber)}
.sub-float__dot{
  width:7px;height:7px;border-radius:50%;background:var(--amber);flex:none;
  animation:softPulse 2.6s ease-out infinite;
}
.sub-float__state{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--amber)}
.sub-float__new{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;
  padding:2px 5px;border-radius:2px;
  background:rgba(255,167,51,.16);color:var(--amber);
}

/* 遮罩 */
.nav-scrim{
  position:fixed;inset:0;z-index:94;
  background:rgba(4,7,14,.72);
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s;
}
.nav-scrim[data-open]{opacity:1;visibility:visible}
html.is-nav-open{overflow:hidden}

@media (max-width:639px){
  .sub-float__new{display:none}
  .nav-toggle__text{display:none}
}
@media (max-width:419px){
  .sub-float__state{display:none}
  .build-tag{display:none}
}

/* ---------- 桌面：轨道直立 ---------- */
@media (min-width:1024px){
  body{padding-top:0;padding-left:var(--rail-w)}
  .site-header{
    right:auto;bottom:0;width:var(--rail-w);height:auto;
    flex-direction:column;align-items:stretch;gap:0;padding:0;
    background:linear-gradient(180deg,rgba(16,22,31,.96),rgba(7,10,18,.97));
    border-bottom:0;border-right:1px solid var(--line);
  }
  .site-header.is-scrolled{box-shadow:none}
  .skip-link{left:16px;top:14px}
  .nav-toggle{display:none}
  .brand-block{
    flex:none;flex-direction:column;align-items:flex-start;gap:10px;
    padding:24px 16px 18px;border-bottom:1px solid var(--line);
  }
  .brand__mark{font-size:21px}
  .rail-nav{
    position:static;transform:none;visibility:visible;
    width:auto;flex:1;overflow:visible;
    padding:18px 0 22px;
    background:none;border-right:0;
    transition:none;
  }
  .rail-nav__label{padding:0 16px 10px}
  .rail-nav__list{padding:0 8px;gap:2px}
  .rail-nav__link{padding:9px 8px;font-size:13px}
  .rail-nav__progress{
    display:block;position:absolute;right:0;top:0;bottom:0;width:2px;
    background:var(--line);overflow:hidden;
  }
  .rail-nav__progress i{
    display:block;width:100%;height:100%;
    background:linear-gradient(180deg,var(--cyan),var(--violet));
    transform:scaleY(0);transform-origin:top center;
  }
  .float-dock{position:fixed;top:18px;right:22px;z-index:95}
  .nav-scrim{display:none}
}

/* ============================================================
   11. 页脚外壳
   ============================================================ */
.site-footer{
  position:relative;z-index:2;
  margin-top:clamp(48px,8vw,96px);
  padding:0 0 26px;
  background:linear-gradient(180deg,rgba(7,10,18,0) 0%,rgba(16,22,31,.55) 26%,#070A12 100%);
}
.footer-panels{
  width:min(100% - 32px,var(--wrap));
  margin-inline:auto;
  display:grid;gap:18px;grid-template-columns:1fr;
}
.footer-panel{
  position:relative;
  padding:22px 20px 24px;
  background:linear-gradient(158deg,rgba(27,36,49,.74),rgba(16,22,31,.92));
  border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.footer-panel::before{
  content:"";position:absolute;left:0;top:0;width:38px;height:2px;background:var(--cyan);
}
.footer-panel--contact::before{background:var(--violet)}
.footer-panel--sub::before{background:var(--amber)}

.footer-label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--muted);margin-bottom:14px;
}
.footer-brand{
  font-family:var(--font-display);font-weight:900;font-size:22px;
  letter-spacing:-.01em;line-height:1.2;color:var(--text);max-width:none;
}
.footer-region{
  margin-top:8px;font-size:13px;color:var(--muted);max-width:none;
  font-family:var(--font-mono);letter-spacing:.06em;
}
.footer-icp{
  margin-top:12px;display:inline-block;padding:4px 9px;border-radius:var(--radius);
  border:1px solid var(--line);background:rgba(7,10,18,.6);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
  max-width:none;
}

.footer-list{display:flex;flex-direction:column;gap:8px}
.footer-list--legal{
  margin-top:14px;padding-top:14px;border-top:1px solid var(--line);
}
.footer-link{
  display:inline-block;font-size:14px;color:var(--muted);
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--cyan);transform:translateX(3px)}

.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact__item{display:flex;flex-direction:column;gap:3px}
.footer-contact__label{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--line);
}
.footer-contact__value{
  font-family:var(--font-mono);font-size:13px;line-height:1.6;color:var(--text);
  word-break:break-word;
}
.footer-note{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--muted);max-width:36ch;
}

.footer-sub__text{
  font-family:var(--font-serif);font-size:17px;line-height:1.8;color:#CBD7E6;
  margin-bottom:18px;max-width:28ch;
}
.footer-sub .btn{margin-bottom:20px}
.footer-quick{
  display:flex;flex-wrap:wrap;gap:8px;
  padding-top:18px;border-top:1px solid var(--line);
}
.quick-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(7,10,18,.55);
  font-size:12px;color:var(--muted);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.quick-link:hover{color:var(--cyan);border-color:rgba(53,225,214,.5);transform:translateY(-2px)}

.footer-meta{
  width:min(100% - 32px,var(--wrap));
  margin:24px auto 0;
  padding-top:16px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
}
.footer-meta__item{display:inline-block}

@media (min-width:768px){
  .footer-panels{width:min(100% - 56px,var(--wrap));grid-template-columns:repeat(12,minmax(0,1fr));gap:22px}
  .footer-panel--brand{grid-column:1 / span 4}
  .footer-panel--nav{grid-column:5 / span 4}
  .footer-panel--contact{grid-column:9 / span 4}
  .footer-panel--sub{
    grid-column:3 / span 8;
    margin-top:-22px;
    z-index:3;
    background:linear-gradient(150deg,rgba(27,36,49,.86),rgba(16,22,31,.96));
  }
  .footer-meta{width:min(100% - 56px,var(--wrap))}
}

/* ---------- 12. 无障碍 / 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;
  }
  body::after{display:none}
  [data-reveal]{opacity:1;transform:none}
}