/* =========================================================
   电竞世界官网 · 共享样式 /assets/site.css
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#06110E;
  --ink-2:#0A1F1A;
  --ink-3:#0F3A2E;
  --cyan:#12D6B8;
  --grass:#2FBF6B;
  --grass-soft:#7BE0A8;
  --amber:#FF8A3D;
  --paper:#F5E9D2;
  --lemon:#D9F24A;
  --muted:#8FA39B;
  --text:#E8F4F0;

  --line:rgba(18,214,184,.20);
  --line-2:rgba(18,214,184,.44);
  --panel:rgba(10,31,26,.72);

  --accent:var(--cyan);
  --accent-2:var(--grass);

  --font-display:"Barlow Condensed","Oswald","Archivo Narrow","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1320px;
  --gutter:clamp(16px,3.4vw,44px);
  --header-h:74px;
  --cut:16px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

html[data-context="football"]{
  --accent:var(--grass);
  --accent-2:var(--amber);
}
html[data-context="esports"]{
  --accent:var(--cyan);
  --accent-2:var(--grass-soft);
}

/* ---------- 2. Reset 与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body[data-nav-open]{overflow:hidden}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
main{display:block}
:focus-visible{
  outline:2px solid var(--lemon);
  outline-offset:3px;
  border-radius:2px;
}
::selection{background:var(--cyan);color:#04211B}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  font-stretch:condensed;
  line-height:1.1;
  letter-spacing:.06em;
  color:var(--text);
}
h1{font-size:clamp(2.6rem,6vw,5rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.75rem)}
h3{font-size:clamp(1.25rem,2vw,1.6rem)}
p{text-wrap:pretty}
.mono,.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}

/* ---------- 4. 布局工具 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,32px);
}

/* ---------- 5. 通用组件 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-72px;
  z-index:200;
  padding:11px 20px;
  background:var(--lemon);
  color:#1A2000;
  font-family:var(--font-display);
  font-weight:700;
  font-size:.9rem;
  letter-spacing:.1em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:.92rem;
  letter-spacing:.12em;
  white-space:nowrap;
  background:var(--cyan);
  color:#04211B;
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition:background .24s var(--ease),color .24s var(--ease);
}
.btn:hover{background:var(--lemon);color:#1A2000}
.btn--ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-2);
  clip-path:none;
}
.btn--ghost:hover{
  background:rgba(18,214,184,.12);
  border-color:var(--cyan);
  color:var(--cyan);
}
.btn--amber{background:var(--amber);color:#2A1000}
.btn--amber:hover{background:var(--lemon);color:#1A2000}
.btn--sm{min-height:38px;padding:0 16px;font-size:.82rem;letter-spacing:.1em}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 10px;
  border:1px solid var(--line-2);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--grass-soft);
}
.tag--amber{border-color:rgba(255,138,61,.5);color:var(--amber)}
.tag--lemon{border-color:rgba(217,242,74,.5);color:var(--lemon)}

.cut-panel{
  position:relative;
  padding:clamp(20px,2.6vw,32px);
  background:var(--panel);
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.cut-panel--paper{
  background:var(--paper);
  color:#12241C;
  box-shadow:inset 0 0 0 1px rgba(6,17,14,.12);
}
.cut-panel--paper h1,.cut-panel--paper h2,.cut-panel--paper h3{color:#0A1F1A}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:
    radial-gradient(90% 80% at 20% 10%,rgba(47,191,107,.34),transparent 62%),
    linear-gradient(160deg,rgba(15,58,46,.95),rgba(6,17,14,.98));
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.media-frame img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--hero{aspect-ratio:21/9}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame__tag{
  position:absolute;
  left:0;
  bottom:0;
  z-index:2;
  padding:6px 14px;
  background:rgba(6,17,14,.84);
  color:var(--lemon);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
}

.stat{display:flex;flex-direction:column;gap:6px}
.stat-value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1;
  color:var(--lemon);
  font-variant-numeric:tabular-nums;
}
.stat-label{font-size:.78rem;letter-spacing:.1em;color:var(--muted)}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-top:22px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--muted);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(143,163,155,.5)}
.breadcrumb a:hover{color:var(--cyan)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px 32px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  margin-bottom:clamp(24px,4vw,44px);
}
.section-title{font-size:clamp(1.7rem,3.4vw,2.6rem)}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.26em;
  color:var(--accent);
}

.rule{
  height:4px;
  margin:clamp(28px,5vw,64px) 0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2) 42%,var(--amber) 70%,transparent);
  transform:skewX(-14deg);
  transform-origin:left center;
  opacity:.85;
}

.prose{
  max-width:40em;
  font-size:1rem;
  line-height:1.85;
  color:rgba(232,244,240,.86);
}
.prose p + p{margin-top:1.05em}
.prose h2{margin:1.8em 0 .5em;font-size:clamp(1.5rem,2.6vw,2.1rem)}
.prose h3{margin:1.5em 0 .4em}
.prose ul{margin-top:.8em;display:flex;flex-direction:column;gap:.5em}
.prose ul li{position:relative;padding-left:20px}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:10px;
  height:2px;
  background:var(--accent);
}
.prose a{border-bottom:1px solid var(--line-2);color:var(--cyan)}
.prose a:hover{border-color:var(--cyan);color:var(--lemon)}
.prose small,.note{
  display:block;
  margin-top:.6em;
  font-size:.82rem;
  line-height:1.7;
  color:var(--muted);
}

/* ---------- 6. 显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 7. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,#06110E 0%,#071813 100%);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled]{
  background:linear-gradient(180deg,#050F0C 0%,#0A1F1A 100%);
  box-shadow:0 20px 44px -30px rgba(0,0,0,.98);
}
.header-frame{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,26px);
  max-width:var(--shell);
  min-height:var(--header-h);
  margin:0 auto;
  padding:0 var(--gutter);
}
.header-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  z-index:2;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2) 58%,var(--lemon));
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-height:44px;
}
.brand-mark{
  padding:.26em .55em;
  background:var(--cyan);
  color:#04211B;
  font-family:var(--font-display);
  font-weight:700;
  font-size:1rem;
  letter-spacing:.1em;
  clip-path:polygon(0 0,100% 0,calc(100% - 8px) 100%,0 100%);
}
.brand-name{
  font-family:var(--font-display);
  font-weight:600;
  font-size:.92rem;
  letter-spacing:.18em;
  color:var(--text);
}

.primary-nav{
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,26px);
  margin-left:auto;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.4vw,22px);
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.95rem;
  letter-spacing:.09em;
  color:rgba(232,244,240,.78);
  transition:color .24s var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-list a:hover{color:var(--text)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--lemon)}
.nav-list a[aria-current="page"]::after{transform:scaleX(1);background:var(--lemon)}

.context-switch{
  display:inline-flex;
  gap:2px;
  padding:2px;
  background:rgba(6,17,14,.66);
  border:1px solid var(--line);
}
.context-switch button{
  padding:.4em .72em;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.8rem;
  letter-spacing:.1em;
  color:var(--muted);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.context-switch button:hover{color:var(--text)}
.context-switch button[aria-pressed="true"]{
  background:var(--accent);
  color:#04211B;
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  min-height:44px;
  padding:0 12px;
  border:1px solid var(--line-2);
  color:var(--text);
  font-family:var(--font-display);
  font-size:.82rem;
  letter-spacing:.14em;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(18,214,184,.1)}
.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:space-between;
  width:18px;
  height:12px;
}
.nav-toggle-bars i{
  display:block;
  width:100%;
  height:2px;
  background:var(--cyan);
  transition:transform .28s var(--ease),opacity .2s linear;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg)}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  margin-top:clamp(56px,9vw,132px);
  background:
    radial-gradient(110% 80% at 6% 0%,rgba(47,191,107,.18),transparent 58%),
    radial-gradient(85% 70% at 98% 4%,rgba(255,138,61,.14),transparent 62%),
    var(--ink-2);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:-6%;
  right:-6%;
  z-index:1;
  height:5px;
  background:linear-gradient(90deg,var(--cyan),var(--grass) 40%,var(--lemon) 70%,var(--amber));
  transform:skewX(-14deg);
  transform-origin:left center;
  opacity:.9;
}
.site-footer::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(255,255,255,.026) 0 2px,transparent 2px 7px),
    repeating-linear-gradient(0deg,rgba(0,0,0,.18) 0 1px,transparent 1px 64px);
}

.footer-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.5fr repeat(4,minmax(0,1fr));
  gap:clamp(22px,2.6vw,42px);
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(44px,6vw,84px) var(--gutter) clamp(30px,4vw,50px);
}

.footer-brand{
  display:flex;
  flex-direction:column;
  gap:16px;
  max-width:34ch;
}
.brand--footer .brand-mark{background:var(--lemon)}
.footer-lede{
  font-size:.95rem;
  line-height:1.8;
  color:var(--muted);
}
.footer-seal{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--grass-soft);
}
.footer-seal::before{
  content:"";
  width:24px;
  height:1px;
  background:var(--grass);
}

.footer-col{display:flex;flex-direction:column;gap:16px}
.footer-title{
  position:relative;
  padding-bottom:11px;
  font-family:var(--font-display);
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--text);
}
.footer-title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:26px;
  height:2px;
  background:var(--cyan);
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{
  display:inline-block;
  font-size:.92rem;
  color:var(--muted);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-list a:hover{color:var(--grass-soft);transform:translateX(4px)}

.footer-base{
  position:relative;
  z-index:2;
  border-top:1px solid rgba(18,214,184,.16);
}
.footer-base-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 32px;
  max-width:var(--shell);
  margin:0 auto;
  padding:22px var(--gutter) 30px;
  font-size:.8rem;
  color:var(--muted);
}
.footer-copy{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 16px;
}
.footer-copy .icp{
  font-family:var(--font-mono);
  letter-spacing:.02em;
  color:var(--muted);
}
.footer-contact{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 22px;
}
.footer-contact li{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.01em;
  color:var(--muted);
}

/* ---------- 9. 响应式 ---------- */
@media (min-width:1100px){
  .header-frame{
    border-left:1px solid rgba(18,214,184,.12);
    border-right:1px solid rgba(18,214,184,.12);
  }
}

@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1;max-width:46ch}
}

@media (max-width:1000px){
  :root{--header-h:64px}
  .nav-toggle{display:inline-flex}

  .primary-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    z-index:70;
    width:min(360px,86vw);
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:20px;
    margin:0;
    padding:calc(var(--header-h) + 28px) 28px 40px;
    overflow-y:auto;
    background:linear-gradient(190deg,#0A1F1A 0%,#06110E 74%);
    border-left:1px solid var(--line-2);
    box-shadow:-28px 0 64px rgba(0,0,0,.62);
    transform:translateX(104%);
    visibility:hidden;
    transition:transform .38s var(--ease),visibility .38s var(--ease);
  }
  .primary-nav[data-open]{
    transform:translateX(0);
    visibility:visible;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .nav-list li + li{border-top:1px solid rgba(18,214,184,.12)}
  .nav-list a{
    display:block;
    padding:15px 4px;
    font-size:1.15rem;
    letter-spacing:.12em;
  }
  .nav-list a::after{
    left:0;
    right:auto;
    bottom:10px;
    width:24px;
    height:2px;
    transform:scaleX(0);
  }
  .nav-list a[aria-current="page"]::after{transform:scaleX(1)}
  .context-switch{align-self:flex-start;margin-top:4px}
}

@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .media-frame--hero{aspect-ratio:16/9}
}

@media (max-width:640px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .media-frame--hero{aspect-ratio:4/3}
  .media-frame--wide{aspect-ratio:3/2}
}

@media (max-width:560px){
  .brand-name{display:none}
  .header-cta{padding:0 12px;font-size:.76rem;letter-spacing:.06em}
  .nav-toggle-text{display:none}
  .footer-base-inner{flex-direction:column;align-items:flex-start}
}

@media (max-width:380px){
  .header-frame{gap:8px}
  .cut-panel{padding:18px}
}

/* ---------- 10. 动效降级 ---------- */
@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]{opacity:1 !important;transform:none !important}
  .header-progress{transition:none}
}