/* =========================================================
   极速电竞主站 · 共享外壳样式 (/assets/site.css)
   深空黑基底 + 电光青刻度 + 霓虹紫光晕 + 极速黄数字
   ========================================================= */

:root{
  --ink:#05070C;
  --navy:#0B1220;
  --panel:#141D30;
  --cyan:#23F0E6;
  --violet:#7A3BFF;
  --yellow:#FFD400;
  --blue:#2E6BFF;
  --red:#FF4D6D;
  --text:#E8F1FF;
  --muted:#8A97AD;
  --line:rgba(138,151,173,.18);
  --line-strong:rgba(138,151,173,.34);
  --line-cyan:rgba(35,240,230,.34);
  --glass:rgba(11,18,32,.78);
  --glass-solid:rgba(9,14,26,.98);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --glow-violet:0 34px 70px -42px rgba(122,59,255,.95);
  --glow-cyan:0 22px 48px -30px rgba(35,240,230,.8);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Roboto Mono","Courier New",monospace;
  --maxw:1320px;
  --gutter:clamp(16px,4vw,40px);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{margin:0;padding:0;-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(112% 68% at 86% -14%, rgba(122,59,255,.22), transparent 62%),
    radial-gradient(88% 58% at 4% 2%, rgba(35,240,230,.10), transparent 64%),
    repeating-linear-gradient(to bottom, rgba(35,240,230,.03) 0 1px, transparent 1px 4px),
    linear-gradient(180deg,#05070C 0%,#070B15 46%,#05070C 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
img,picture,video,svg,canvas{display:block;max-width:100%;}
table{border-collapse:collapse;width:100%;}
strong,b{font-weight:700;}
h1,h2,h3{font-weight:800;line-height:1.14;letter-spacing:-.02em;}

/* ---------- 基础工具 ---------- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;}
.muted{color:var(--muted);}
.skip-link{
  position:absolute;left:var(--gutter);top:-72px;z-index:200;
  padding:10px 20px;border-radius:var(--r-pill);
  background:linear-gradient(120deg,var(--cyan),var(--blue));
  color:#04060B;font-size:14px;font-weight:800;letter-spacing:.06em;
  transition:top .2s ease;
}
.skip-link:focus{top:12px;}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);}
.section{padding-block:clamp(48px,7vw,88px);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:clamp(22px,3vw,40px);}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:600;letter-spacing:.22em;color:var(--cyan);}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);}
.display{font-size:clamp(38px,7vw,88px);font-weight:900;line-height:1.02;letter-spacing:-.035em;}
.display em{font-style:normal;color:var(--cyan);}
.section-title{font-size:clamp(24px,3.4vw,40px);font-weight:800;letter-spacing:-.02em;}
.lede{max-width:62ch;font-size:16.5px;line-height:1.85;color:var(--muted);}
.tilt{transform:skewX(-2deg);}

/* ---------- 面包屑 ---------- */
.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--muted);}
.breadcrumbs li{display:flex;align-items:center;gap:8px;}
.breadcrumbs li+li::before{content:"/";color:rgba(138,151,173,.45);}
.breadcrumbs a{color:var(--muted);transition:color .18s ease;}
.breadcrumbs a:hover{color:var(--cyan);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;letter-spacing:.04em;white-space:nowrap;
  border:1px solid transparent;
  transition:transform .12s ease,box-shadow .22s ease,background .22s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:scale(.97);}
.btn--primary{background:linear-gradient(120deg,var(--cyan),var(--blue) 58%,var(--violet));color:#04060B;box-shadow:0 18px 40px -24px rgba(35,240,230,.95);}
.btn--primary:hover{box-shadow:0 24px 52px -22px rgba(35,240,230,.95);}
.btn--ghost{background:rgba(20,29,48,.72);color:var(--text);border-color:var(--line-strong);}
.btn--ghost:hover{border-color:var(--line-cyan);color:var(--cyan);}

/* =========================================================
   悬浮胶囊导航
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:12px var(--gutter);
  background:rgba(5,7,12,.82);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  transition:padding .28s ease,background .28s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,240,230,.42) 24%,rgba(122,59,255,.42) 76%,transparent);
}
.site-header[data-scrolled]{padding-top:5px;padding-bottom:5px;background:rgba(5,7,12,.94);}

.scroll-progress{
  position:absolute;left:0;bottom:0;height:2px;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--blue) 55%,var(--violet));
  box-shadow:0 0 18px rgba(35,240,230,.75);
  pointer-events:none;
}

.header-inner{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  max-width:var(--maxw);margin-inline:auto;
}

/* 品牌浮岛 */
.brand{
  display:inline-flex;align-items:center;gap:11px;
  padding:6px 18px 6px 7px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--glow-violet);
  transition:border-color .2s ease,transform .18s ease,padding .28s ease;
}
.brand:hover{border-color:var(--line-cyan);}
.brand:active{transform:scale(.985);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:30px;padding:0 8px;border-radius:9px;
  background:linear-gradient(135deg,var(--cyan),var(--blue) 58%,var(--violet));
  color:#04060B;font-family:var(--font-mono);font-size:12px;font-weight:700;
  letter-spacing:.14em;line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.01em;color:var(--text);}
.brand-tagline{
  font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--muted);
  white-space:nowrap;max-height:20px;overflow:hidden;
  transition:max-height .28s ease,opacity .22s ease;
}
.site-header[data-scrolled] .brand-tagline{max-height:0;opacity:0;}
.site-header[data-scrolled] .brand{padding-top:4px;padding-bottom:4px;}

/* 移动栏目开关 */
.nav-toggle{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);font-size:13px;font-weight:600;letter-spacing:.06em;
  transition:border-color .2s ease,color .2s ease,transform .12s ease;
}
.nav-toggle:active{transform:scale(.97);}
.nav-toggle[aria-expanded="true"]{border-color:var(--line-cyan);color:var(--cyan);}
.nav-toggle-label{font-size:12px;letter-spacing:.16em;}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:18px;}
.nav-toggle-bars i{display:block;height:2px;border-radius:2px;background:var(--cyan);transition:transform .25s ease,opacity .2s ease;}
.nav-toggle-bars i:nth-child(2){width:70%;background:var(--violet);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(6px) 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(-6px) rotate(-45deg);}

/* 栏目胶囊（移动优先 = 下拉面板） */
.nav-shell{
  position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:20;
  display:flex;flex-direction:column;gap:8px;
  padding:0 12px;max-height:0;overflow:hidden;
  visibility:hidden;opacity:0;
  border-radius:var(--r-lg);
  background:var(--glass-solid);
  border:1px solid rgba(35,240,230,.22);
  box-shadow:0 44px 80px -44px rgba(0,0,0,.98),0 0 0 1px rgba(122,59,255,.14);
  transition:max-height .36s cubic-bezier(.22,.9,.24,1),opacity .24s ease,padding .3s ease,visibility 0s linear .36s;
}
.nav-shell[data-open]{
  max-height:78vh;overflow-y:auto;
  padding:14px 12px;
  visibility:visible;opacity:1;
  transition:max-height .36s cubic-bezier(.22,.9,.24,1),opacity .24s ease,padding .3s ease,visibility 0s;
}
.nav-list{display:flex;flex-direction:column;gap:2px;}
.nav-item{display:block;}
.nav-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 16px;border-radius:14px;
  color:var(--muted);font-size:14px;font-weight:600;letter-spacing:.02em;
  transition:color .18s ease,background .18s ease,box-shadow .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(35,240,230,.08);}
.nav-link:active{transform:scale(.99);}
.nav-link[aria-current="page"]{
  color:#04060B;font-weight:800;
  background:linear-gradient(120deg,var(--cyan),#6BFFF7 46%,var(--blue));
  box-shadow:0 14px 32px -18px rgba(35,240,230,.95);
}
.nav-utility{display:flex;flex-direction:column;gap:4px;padding:10px 4px 2px;border-top:1px solid var(--line);}
.nav-util-link{
  padding:6px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.14em;color:rgba(138,151,173,.85);
  transition:color .18s ease,background .18s ease;
}
.nav-util-link:hover{color:var(--cyan);background:rgba(35,240,230,.08);}
.nav-cta{margin:8px 4px 4px;}

/* =========================================================
   页脚：横向时间轴式
   ========================================================= */
.site-footer{
  position:relative;z-index:2;
  margin-top:clamp(64px,9vw,120px);
  padding:clamp(48px,6vw,80px) var(--gutter) clamp(26px,4vw,40px);
  border-top:1px solid var(--line);
  background:
    radial-gradient(118% 88% at 88% 0%, rgba(122,59,255,.18), transparent 62%),
    linear-gradient(180deg, rgba(11,18,32,.35) 0%, rgba(11,18,32,.9) 34%, rgba(5,7,12,.99) 100%);
}
.footer-inner{
  display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,44px);
  max-width:var(--maxw);margin-inline:auto;
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.brand--footer{box-shadow:none;background:rgba(20,29,48,.6);}
.footer-legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--yellow);}
.footer-copy{font-size:12.5px;letter-spacing:.02em;color:var(--muted);}
.footer-index{display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:24px;}
.footer-col{min-width:0;}
.footer-col-title{
  margin-bottom:14px;font-size:12px;font-weight:600;
  letter-spacing:.2em;color:var(--cyan);
}
.footer-list{display:flex;flex-direction:column;gap:9px;}
.footer-link{
  display:inline-block;font-size:14px;color:var(--muted);
  transition:color .18s ease,transform .18s ease;
}
.footer-link:hover{color:var(--text);transform:translateX(4px);}
.footer-contact{
  position:relative;overflow:hidden;
  padding:22px 20px;border-radius:var(--r-lg);
  background:linear-gradient(150deg, rgba(20,29,48,.95), rgba(11,18,32,.9));
  border:1px solid var(--line);
  box-shadow:var(--glow-violet);
}
.footer-contact::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(46,107,255,.4) 52%,transparent 86%);
}
.footer-contact-list{display:flex;flex-direction:column;gap:10px;}
.footer-contact-line{
  position:relative;padding-left:14px;
  font-size:13.5px;line-height:1.62;color:var(--text);
  word-break:break-word;
}
.footer-contact-line::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(35,240,230,.9);
}
.footer-contact-note{margin-top:12px;font-size:12px;line-height:1.72;letter-spacing:.02em;color:var(--muted);}
.footer-axis{
  position:relative;max-width:var(--maxw);height:2px;margin:clamp(32px,5vw,56px) auto 0;
  background:linear-gradient(90deg, rgba(35,240,230,.55), rgba(46,107,255,.35) 46%, rgba(122,59,255,0) 100%);
}
.footer-axis .axis-tick{
  position:absolute;top:-3px;width:2px;height:8px;border-radius:2px;
  background:var(--cyan);opacity:.6;
}
.footer-axis .axis-tick:nth-of-type(1){left:0;}
.footer-axis .axis-tick:nth-of-type(2){left:25%;}
.footer-axis .axis-tick:nth-of-type(3){left:50%;}
.footer-axis .axis-tick:nth-of-type(4){left:75%;}

/* =========================================================
   通用内容组件
   ========================================================= */
.card{
  position:relative;
  padding:22px;border-radius:var(--r-lg);
  background:linear-gradient(150deg, rgba(20,29,48,.92), rgba(11,18,32,.86));
  border:1px solid var(--line);
  box-shadow:0 30px 60px -48px rgba(0,0,0,1);
  transition:border-color .2s ease,transform .22s ease;
}
.card:hover{border-color:var(--line-cyan);transform:translateY(-2px);}
.card-title{margin-bottom:8px;font-size:18px;font-weight:700;letter-spacing:-.01em;}
.card-body{font-size:14.5px;line-height:1.8;color:var(--muted);}

.grid{display:grid;gap:clamp(16px,2.2vw,26px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:600;letter-spacing:.12em;
  background:rgba(35,240,230,.12);color:var(--cyan);
  border:1px solid rgba(35,240,230,.26);
}
.tag--violet{background:rgba(122,59,255,.16);color:#C6AAFF;border-color:rgba(122,59,255,.36);}
.tag--yellow{background:rgba(255,212,0,.14);color:var(--yellow);border-color:rgba(255,212,0,.3);}

.annotation{
  padding:16px 18px;border-radius:var(--r-md);
  border-left:2px solid var(--cyan);
  background:rgba(20,29,48,.62);
  font-size:13px;line-height:1.75;color:var(--muted);
}

.timeline{position:relative;display:flex;flex-direction:column;gap:18px;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),var(--blue) 56%,rgba(122,59,255,0));
}
.timeline-item{position:relative;}
.timeline-item::before{
  content:"";position:absolute;left:-24px;top:9px;width:10px;height:10px;border-radius:50%;
  background:var(--ink);border:2px solid var(--cyan);
  box-shadow:0 0 12px rgba(35,240,230,.7);
}

/* 图片容器协议 */
.media{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--r-lg);
  background:linear-gradient(150deg,#0E1626,#070B14);
  border:1px solid var(--line);
}
.media img,.media video,.media picture>img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(to bottom, rgba(5,7,12,.14) 0 1px, transparent 1px 3px),
    radial-gradient(120% 90% at 14% 0%, rgba(35,240,230,.16), transparent 62%);
  opacity:.72;
}
.media--wide{aspect-ratio:16/9;}
.media--screen{aspect-ratio:3/4;}
.media--square{aspect-ratio:1/1;}
.media--strip{aspect-ratio:21/9;}
.media-caption{margin-top:10px;font-size:12px;line-height:1.7;letter-spacing:.06em;color:var(--muted);}

/* 主题筛选 */
.filter-bar{
  display:flex;gap:8px;align-items:center;
  padding:6px;border-radius:var(--r-pill);
  background:rgba(11,18,32,.72);
  border:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-btn{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--muted);border:1px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease,box-shadow .22s ease;
}
.filter-btn:hover{color:var(--text);background:rgba(35,240,230,.08);}
.filter-btn.is-active{
  color:#04060B;
  background:linear-gradient(120deg,var(--cyan),var(--blue));
  box-shadow:0 14px 30px -18px rgba(35,240,230,.95);
}
.filter-status{font-size:12px;letter-spacing:.1em;color:var(--muted);}
[data-filtered]{display:none !important;}

/* 显现动效（无 JS 时内容始终可见） */
.js [data-reveal]{
  opacity:0;
  transform:translate3d(24px,24px,0);
  transition:opacity .32s cubic-bezier(.22,.9,.24,1),transform .32s cubic-bezier(.22,.9,.24,1);
}
.js [data-reveal][data-revealed]{opacity:1;transform:none;}

/* =========================================================
   响应式：平板与桌面
   ========================================================= */
@media (min-width:640px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-brand{grid-column:span 1;}
  .footer-contact{grid-column:span 2;}
}
@media (min-width:900px){
  .site-header{padding-top:14px;padding-bottom:14px;}
  .nav-toggle{display:none;}
  .nav-shell{
    position:static;
    flex-direction:row;align-items:center;gap:6px;
    max-height:none;padding:6px 8px 6px 6px;
    overflow:visible;visibility:visible;opacity:1;
    border-radius:var(--r-pill);
    background:var(--glass);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:var(--glow-violet);
    transition:border-color .2s ease;
  }
  .nav-shell[data-open]{padding:6px 8px 6px 6px;overflow:visible;}
  .nav-list{
    flex-direction:row;align-items:center;gap:2px;
    overflow-x:auto;overflow-y:hidden;
    scrollbar-width:none;-ms-overflow-style:none;
  }
  .nav-list::-webkit-scrollbar{display:none;}
  .nav-link{padding:9px 15px;font-size:13.5px;border-radius:var(--r-pill);white-space:nowrap;}
  .nav-link:hover{background:rgba(35,240,230,.1);}
  .nav-utility{
    flex-direction:row;align-items:center;gap:2px;
    padding:0 8px;margin-left:4px;
    border-top:0;border-left:1px solid var(--line);
  }
  .nav-util-link{padding:6px 8px;font-size:11.5px;}
  .nav-cta{margin:0 0 0 6px;padding:9px 18px;font-size:13px;}
  .footer-inner{grid-template-columns:minmax(230px,.9fr) minmax(0,1.5fr) minmax(250px,1fr);align-items:start;}
  .footer-contact{grid-column:span 1;padding:24px 22px;}
}
@media (min-width:1240px){
  .nav-link{padding:10px 17px;font-size:14px;}
  .brand-tagline{font-size:11.5px;}
}
@media (max-width:560px){
  .brand-tagline{display:none;}
  .brand-name{font-size:14px;}
  .brand{padding:5px 14px 5px 6px;}
  .brand-mark{min-width:38px;height:27px;font-size:11px;}
  .nav-toggle{padding:8px 14px;}
  .footer-legal{font-size:11.5px;}
}

/* 无障碍：减少动态 */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none;}
  .scroll-progress{display:none;}
  .card:hover{transform:none;}
  .footer-link:hover{transform:none;}
}