/* ===========================================================
   博鱼赛场 · 共享样式 /assets/site.css
   深海蓝 · 夜航蓝 · 石墨黑 · 暖白 + 竞技橙 / 荧光青 / 电光蓝
   =========================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
address{font-style:normal}

/* ---------- 2. Tokens ---------- */
:root{
  --deep:#071A33;
  --night:#0E2A4A;
  --graphite:#0B0F14;
  --warm:#F5F0E6;
  --orange:#FF6A2B;
  --cyan:#2CF2C2;
  --blue:#2D9CFF;
  --yellow:#FFD166;
  --steel:#A7B4C4;
  --coral:#FF4D6D;

  --rail-w:256px;
  --pad-x:clamp(18px,4vw,56px);
  --gap:clamp(16px,2.2vw,28px);
  --line:rgba(11,15,20,.14);
  --line-dark:rgba(245,240,230,.16);
  --shadow-hard:8px 8px 0 var(--graphite);
  --shadow-hard-sm:4px 4px 0 var(--graphite);

  --font-head:"Noto Sans SC","思源黑体","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Condensed","DIN Condensed","Roboto Condensed",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- 3. Base ---------- */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  color:var(--deep);
  background-color:var(--warm);
  background-image:
    linear-gradient(rgba(7,26,51,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(7,26,51,.045) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  background-position:-1px -1px;
  min-height:100vh;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-head);font-weight:800;line-height:1.16;letter-spacing:-.015em}
h1{font-size:clamp(32px,5vw,56px)}
h2{font-size:clamp(24px,3.4vw,34px)}
h3{font-size:clamp(19px,2.4vw,24px)}
p{max-width:74ch}
strong{font-weight:800}
.num,.stat__num,.navlist__idx,.foot__icp,.foot__num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
html.nav-open,html.nav-open body{overflow:hidden}

/* ---------- 4. Layout helpers ---------- */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}
.section{padding:clamp(48px,7vw,96px) 0}
.section--tight{padding:clamp(28px,4vw,52px) 0}
.section--dark{background:var(--deep);color:var(--warm)}
.section--dark h1,.section--dark h2,.section--dark h3{color:var(--warm)}
.section--dark p{color:rgba(245,240,230,.82)}
.stack{display:flex;flex-direction:column;gap:var(--gap)}
.grid{display:grid;gap:var(--gap);grid-template-columns:1fr}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--bento{grid-template-columns:1fr}
.span-2,.span-3,.span-4,.span-6{grid-column:1 / -1}
@media (min-width:720px){
  .grid--bento{grid-template-columns:repeat(6,1fr)}
  .span-2{grid-column:span 2}
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-6{grid-column:span 6}
}
.rule{height:3px;background:var(--graphite);border:0}
.rule--soft{height:1px;background:var(--line)}
.notch{clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%)}

/* ---------- 5. Text / data bits ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--orange)}
.eyebrow::before{content:"";width:26px;height:3px;background:currentColor}
.lede{font-size:clamp(17px,2vw,20px);line-height:1.85;color:rgba(7,26,51,.78);max-width:62ch}
.section--dark .lede{color:rgba(245,240,230,.82)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat__num{font-size:clamp(40px,7vw,64px);font-weight:700;line-height:.95;color:var(--deep)}
.section--dark .stat__num{color:var(--warm)}
.stat__label{font-size:12px;letter-spacing:.2em;color:var(--steel);font-family:var(--font-num)}
.update{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:13px;letter-spacing:.12em;color:var(--deep);background:rgba(44,242,194,.2);border:2px solid var(--graphite);padding:5px 11px}
.chip{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12.5px;font-weight:700;letter-spacing:.14em;padding:6px 11px;border:2px solid var(--graphite);background:var(--warm);color:var(--deep)}
.chip--cyan{background:rgba(44,242,194,.24)}
.chip--orange{background:var(--orange);color:var(--graphite)}
.chip--dark{background:var(--night);color:var(--warm)}

/* ---------- 6. Panels ---------- */
.panel{background:#FFFCF5;border:3px solid var(--graphite);box-shadow:var(--shadow-hard);padding:clamp(18px,2.6vw,30px)}
.panel--dark{background:var(--night);color:var(--warm);border-color:var(--graphite)}
.panel--dark h2,.panel--dark h3{color:var(--warm)}
.panel--warm{background:var(--warm)}

/* ---------- 7. Media containers ---------- */
.media{position:relative;display:block;overflow:hidden;background:var(--night);border:3px solid var(--graphite);box-shadow:var(--shadow-hard)}
.media__img{width:100%;height:100%;object-fit:cover;aspect-ratio:16 / 9;filter:saturate(1.05) contrast(1.04)}
.media--wide .media__img{aspect-ratio:21 / 9}
.media--square .media__img{aspect-ratio:1 / 1}
.media--tall .media__img{aspect-ratio:3 / 4}
.media__tag{position:absolute;top:0;left:0;z-index:2;background:var(--orange);color:var(--graphite);font-family:var(--font-num);font-weight:700;font-size:12px;letter-spacing:.12em;padding:6px 11px}
.media__caption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:14px;background:linear-gradient(0deg,rgba(7,26,51,.94),rgba(7,26,51,0));color:var(--warm);font-size:13px;letter-spacing:.04em;margin:0;max-width:none}

/* ---------- 8. Breadcrumb ---------- */
.breadcrumb{background:rgba(7,26,51,.04);border-bottom:1px solid var(--line);padding:12px 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:13px;color:var(--steel)}
.crumbs li{display:inline-flex;align-items:center;gap:12px}
.crumbs li + li::before{content:"/";color:var(--steel);opacity:.6}
.crumbs a{color:var(--blue)}
.crumbs a:hover{color:var(--orange)}
.crumbs [aria-current="page"]{color:var(--deep);font-weight:700}

/* ---------- 9. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-head);font-weight:800;font-size:15px;line-height:1.2;letter-spacing:.02em;
  padding:12px 18px;border:2px solid var(--graphite);background:var(--warm);color:var(--graphite);
  box-shadow:var(--shadow-hard-sm);cursor:pointer;text-align:center;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--graphite)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--graphite)}
.btn--primary{background:var(--orange);color:var(--graphite)}
.btn--primary:hover{background:#FF7F4A}
.btn--ghost{background:transparent;color:var(--warm);border-color:var(--cyan);box-shadow:4px 4px 0 rgba(44,242,194,.35)}
.btn--ghost:hover{background:rgba(44,242,194,.12);box-shadow:6px 6px 0 rgba(44,242,194,.45)}
.btn--quiet{background:transparent;color:var(--deep);border-color:var(--deep);box-shadow:none}
.btn--quiet:hover{background:var(--deep);color:var(--warm)}
.btn--block{width:100%}

/* ---------- 10. Skip link ---------- */
.skip-link{
  position:fixed;left:14px;top:-80px;z-index:120;
  background:var(--cyan);color:var(--graphite);font-weight:800;font-size:14px;
  padding:11px 18px;border:3px solid var(--graphite);box-shadow:var(--shadow-hard-sm);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- 11. Header / side rail ---------- */
.site-rail{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,var(--deep),#05132A);
  color:var(--warm);
  border-bottom:3px solid var(--graphite);
}
.rail__inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:12px;min-height:64px;padding:10px var(--pad-x);
}
.rail__top{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;flex:1 1 auto}

.brand{display:inline-flex;align-items:center;gap:12px;padding:4px;border-radius:2px}
.brand__mark{
  position:relative;flex:0 0 auto;width:34px;height:34px;display:block;
  background:var(--orange);border:2px solid var(--graphite);box-shadow:3px 3px 0 var(--cyan);
}
.brand__mark i{position:absolute;left:7px;height:3px;background:var(--graphite);border-radius:1px}
.brand__mark i:nth-child(1){top:8px;right:7px}
.brand__mark i:nth-child(2){top:15px;right:13px}
.brand__mark i:nth-child(3){top:22px;right:7px}
.brand__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:19px;letter-spacing:.04em;color:var(--warm)}
.brand__tag{font-size:11px;letter-spacing:.1em;color:var(--steel)}

.nav-toggle{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  background:var(--night);color:var(--warm);border:2px solid var(--graphite);
  box-shadow:var(--shadow-hard-sm);padding:9px 12px;
  font-family:var(--font-head);font-weight:800;font-size:13px;letter-spacing:.08em;
}
.nav-toggle__label{white-space:nowrap}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:18px}
.nav-toggle__bars i{display:block;height:2px;background:var(--cyan);transition:transform .2s var(--ease),opacity .2s var(--ease)}
[data-rail][data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
[data-rail][data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
[data-rail][data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.site-nav{
  position:fixed;top:0;bottom:0;left:0;z-index:70;
  width:min(86vw,340px);
  display:flex;flex-direction:column;gap:20px;
  padding:88px 22px 30px;overflow-y:auto;
  background:linear-gradient(160deg,var(--deep),#040E1D 120%);
  border-right:3px solid var(--graphite);
  box-shadow:14px 0 44px -22px rgba(0,0,0,.85);
  transform:translateX(-102%);
  transition:transform .28s var(--ease);
}
[data-rail][data-open] .site-nav{transform:none}
.site-nav__title{margin:0 0 12px;padding-left:12px;font-family:var(--font-num);font-size:11px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;color:var(--steel)}
.site-nav__foot{display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--line-dark)}

.navlist{display:flex;flex-direction:column;gap:4px}
.navlist a{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:11px 12px;border-left:3px solid transparent;
  color:var(--warm);font-weight:600;font-size:15.5px;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);
}
.navlist a:hover{background:rgba(45,156,255,.14);border-left-color:var(--blue);transform:translateX(2px)}
.navlist a[aria-current="page"]{background:var(--night);border-left-color:var(--cyan);color:#fff}
.navlist a[aria-current="page"] .navlist__idx{color:var(--cyan)}
.navlist__idx{min-width:22px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--steel)}
.navlist__label{letter-spacing:.02em}

.livepill{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--cyan);background:rgba(44,242,194,.07);border:1px dashed rgba(44,242,194,.45);padding:7px 11px;max-width:none}
.livepill__dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);animation:pulse 2.4s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(44,242,194,.55)}
  70%{box-shadow:0 0 0 11px rgba(44,242,194,0)}
  100%{box-shadow:0 0 0 0 rgba(44,242,194,0)}
}

.rail__progress{
  position:absolute;left:0;bottom:0;z-index:5;
  width:100%;height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--blue) 58%,var(--orange));
  transform:scaleX(var(--p,0));transform-origin:left center;
  transition:transform .12s linear;
}
.rail__scrim{
  position:fixed;inset:0;z-index:60;display:block;cursor:pointer;
  background:rgba(7,26,51,.74);
  opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
[data-rail][data-open] .rail__scrim{opacity:1;visibility:visible}

@media (min-width:1080px){
  body{padding-left:var(--rail-w)}
  .site-rail{position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);height:100vh;border-bottom:0;border-right:3px solid var(--graphite);overflow:hidden}
  .rail__inner{flex-direction:column;align-items:stretch;gap:24px;height:100%;min-height:0;padding:26px 20px 24px}
  .rail__top{width:auto;flex:0 0 auto}
  .nav-toggle{display:none}
  .site-nav{
    position:static;transform:none;width:auto;min-height:0;z-index:auto;
    flex:1 1 auto;overflow-y:auto;
    padding:0;background:transparent;border:0;box-shadow:none;
  }
  .rail__scrim{display:none}
  .rail__progress{
    left:auto;right:0;top:0;bottom:auto;
    width:3px;height:100%;
    background:linear-gradient(180deg,var(--cyan),var(--blue) 55%,var(--orange));
    transform:scaleY(var(--p,0));transform-origin:center top;
  }
}

/* ---------- 12. Footer ---------- */
.site-foot{
  position:relative;overflow:hidden;
  margin-top:clamp(48px,8vw,96px);
  padding:clamp(40px,6vw,72px) var(--pad-x) 0;
  background:var(--graphite);color:var(--warm);
  border-top:6px solid var(--orange);
}
.foot__ghost{
  position:absolute;right:-2%;bottom:46px;z-index:0;
  font-family:var(--font-head);font-weight:900;
  font-size:clamp(72px,17vw,210px);line-height:.8;letter-spacing:-.04em;
  color:rgba(245,240,230,.045);pointer-events:none;user-select:none;
}
.foot__grid{position:relative;z-index:1;display:grid;gap:clamp(28px,4vw,48px);grid-template-columns:1fr;max-width:1240px;margin:0 auto}
@media (min-width:640px){.foot__grid{grid-template-columns:1fr 1fr}}
@media (min-width:1080px){.foot__grid{grid-template-columns:1.5fr .8fr .8fr 1.15fr}}
.foot__brand{align-items:flex-start}
.brand--foot{align-items:flex-start;padding:0}
.brand--foot .brand__name{font-size:22px}
.foot__desc{margin-top:16px;max-width:34ch;font-size:15px;line-height:1.9;color:var(--steel)}
.foot__cta{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding-bottom:3px;font-family:var(--font-head);font-weight:800;color:var(--orange);border-bottom:2px solid rgba(255,106,43,.5);transition:border-color .16s var(--ease),color .16s var(--ease)}
.foot__cta:hover{color:#FF8F5C;border-bottom-color:var(--orange)}
.foot__title{margin-bottom:16px;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--cyan)}
.foot__list{display:flex;flex-direction:column;gap:10px}
.foot__list a{display:inline-block;font-size:15px;color:var(--steel);transition:color .16s var(--ease),transform .16s var(--ease)}
.foot__list a:hover{color:var(--warm);transform:translateX(3px)}
.foot__contact{display:flex;flex-direction:column;gap:12px}
.foot__row{display:flex;flex-direction:column;gap:2px;max-width:none}
.foot__k{font-family:var(--font-num);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel)}
.foot__v{font-size:15px;color:var(--warm);word-break:break-word}
.foot__num{font-size:17px;letter-spacing:.04em}
.foot__note{margin-top:14px;padding-left:12px;border-left:3px solid var(--yellow);font-size:13px;line-height:1.95;color:var(--steel);max-width:36ch}
.foot__bottom{
  position:relative;z-index:1;max-width:1240px;margin:clamp(36px,5vw,56px) auto 0;
  padding:20px 0 26px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 22px;
  font-size:13px;color:var(--steel);
}
.foot__legal{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;margin:0;max-width:none}
.foot__legal--links a{color:var(--steel);transition:color .16s var(--ease)}
.foot__legal--links a:hover{color:var(--cyan)}
.foot__icp{letter-spacing:.06em;color:var(--steel)}

/* ---------- 13. Back to top ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:75;
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;font-size:20px;font-weight:800;line-height:1;
  background:var(--orange);color:var(--graphite);
  border:3px solid var(--graphite);box-shadow:var(--shadow-hard-sm);cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--graphite)}
@media (min-width:1080px){.to-top{right:26px;bottom:26px}}

/* ---------- 14. Disclosure groups ---------- */
.disclosure{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:14px 18px;cursor:pointer;text-align:left;
  background:var(--deep);color:var(--warm);
  border:3px solid var(--graphite);border-left:6px solid var(--steel);
  font-family:var(--font-head);font-weight:800;font-size:16px;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.disclosure::after{content:"+";font-family:var(--font-num);font-size:22px;line-height:1;color:var(--cyan)}
.disclosure:hover{background:var(--night)}
.disclosure[aria-expanded="true"]{background:var(--night);border-left-color:var(--cyan)}
.disclosure[aria-expanded="true"]::after{content:"–"}
.disclosure__panel{padding:18px;background:var(--warm);border:3px solid var(--graphite);border-top:0;animation:panelIn .26s var(--ease)}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- 15. Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 16. Reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
  .livepill__dot{animation:none}
}