/* ===== 大神娱乐 · 共享样式 /assets/site.css ===== */

/* --- 1. tokens & reset --- */
:root{
  --ink:#0A1020;
  --ink-2:#101B36;
  --panel:#182741;
  --cyan:#38F0D8;
  --gold:#E8B75C;
  --magenta:#E0468C;
  --grey:#4A5568;
  --moss:#5F7D6A;
  --clay:#B5714F;
  --paper:#F2EDE4;
  --line:rgba(74,85,104,.5);
  --line-soft:rgba(74,85,104,.28);
  --bar-h:58px;
  --rail-w:108px;
  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
  --radius:16px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--bar-h) + 18px)}
body{
  margin:0;
  padding-top:var(--bar-h);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 520px at 10% -8%,rgba(56,240,216,.11),transparent 62%),
    radial-gradient(680px 480px at 94% 2%,rgba(224,70,140,.09),transparent 60%),
    radial-gradient(900px 680px at 62% 112%,rgba(232,183,92,.07),transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.24;
  background-image:
    linear-gradient(rgba(74,85,104,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(74,85,104,.42) 1px,transparent 1px);
  background-size:96px 96px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.25) 62%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.25) 62%,transparent 100%);
}
img,svg,video{max-width:100%;display:block}
img{height:auto}
button{font:inherit;color:inherit}
[hidden]{display:none !important}

/* --- 2. typography --- */
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--paper)}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
a{color:var(--cyan)}
.display{font-size:clamp(2.6rem,6vw,5.2rem);font-weight:900;letter-spacing:-.03em;line-height:1.02}
.section-title{font-size:clamp(1.5rem,2.6vw,2.2rem);letter-spacing:-.025em}
.lede{font-size:clamp(15px,1.4vw,17px);line-height:1.9;color:rgba(242,237,228,.78);max-width:36em}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(56,240,216,.6),rgba(232,183,92,.28) 36%,rgba(74,85,104,.22) 68%,transparent)}
.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}

main{position:relative;z-index:1;display:block}
.wrap{width:min(var(--wrap),calc(100% - var(--gutter) * 2));margin-inline:auto}

/* --- 3. focus & skip link --- */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:90;
  padding:10px 18px;border-radius:0 0 10px 10px;
  background:var(--cyan);color:#04121a;font-weight:800;font-size:14px;text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{top:0}

/* --- 4. header bar --- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60}
.header-bar{
  position:relative;display:flex;align-items:center;gap:clamp(10px,1.6vw,22px);
  height:var(--bar-h);padding:0 clamp(14px,3vw,32px);
  background:linear-gradient(180deg,rgba(10,16,32,.97),rgba(16,27,54,.93));
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;color:var(--paper)}
.brand__mark{position:relative;width:28px;height:28px;border:1px solid rgba(56,240,216,.55);border-radius:8px;background:linear-gradient(140deg,rgba(56,240,216,.22),rgba(24,39,65,.35))}
.brand__mark::before{content:"";position:absolute;inset:5px;border:1px solid rgba(232,183,92,.72);border-radius:3px}
.brand__mark::after{content:"";position:absolute;left:50%;top:50%;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(56,240,216,.9)}
.brand__text{display:flex;flex-direction:column;line-height:1.12}
.brand__name{font-size:17px;font-weight:900;letter-spacing:-.02em}
.brand__sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;color:var(--cyan);text-transform:uppercase}
.header-scope{
  flex:0 0 auto;padding:3px 10px;border:1px solid rgba(232,183,92,.38);border-radius:999px;
  font-size:11px;letter-spacing:.12em;color:var(--gold);white-space:nowrap;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.topnav{display:none;align-items:center;gap:2px;margin-left:auto}

.topnav__link{
  position:relative;padding:8px 10px;border-radius:8px;text-decoration:none;
  font-size:13.5px;font-weight:500;color:rgba(242,237,228,.72);
  transition:color .2s,background .2s;
}
.topnav__link:hover{color:var(--paper);background:rgba(56,240,216,.08)}
.topnav__link[aria-current="page"]{color:var(--cyan)}
.topnav__link[aria-current="page"]::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;background:var(--cyan);
}

.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:38px;padding:0;cursor:pointer;
  border:1px solid rgba(56,240,216,.38);border-radius:10px;
  background:rgba(56,240,216,.07);color:var(--paper);
  transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(56,240,216,.14)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:currentColor;transition:background .2s}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor;
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:0;transform:rotate(-45deg)}

.read-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:rgba(74,85,104,.32);overflow:hidden}
.read-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),var(--gold) 68%,var(--magenta));transition:width .12s linear}

/* --- 5. rail navigation (drawer on small screens) --- */
.rail-nav{
  position:fixed;top:var(--bar-h);left:0;bottom:0;z-index:55;
  width:min(300px,84vw);
  display:flex;flex-direction:column;gap:18px;
  padding:18px 12px 26px;
  overflow-y:auto;
  background:linear-gradient(180deg,rgba(16,27,54,.98),rgba(10,16,32,.99));
  border-right:1px solid var(--line);
  box-shadow:0 24px 70px rgba(4,8,18,.7);
  transform:translateX(-100%);
  transition:transform .28s cubic-bezier(.2,.7,.3,1);
}
.rail-nav[data-open="true"]{transform:none}
.rail-head{font-size:11px;letter-spacing:.2em;color:var(--grey);padding-left:10px;text-transform:uppercase}
.rail-list{display:flex;flex-direction:column;gap:4px}
.rail-link{
  display:flex;align-items:center;gap:12px;
  padding:14px 12px;border-radius:10px;border-left:3px solid transparent;
  text-decoration:none;color:rgba(242,237,228,.7);
  transition:color .2s,background .2s,border-color .2s;
}
.rail-link:hover{color:var(--paper);background:rgba(56,240,216,.08);border-left-color:rgba(56,240,216,.5)}
.rail-link[aria-current="page"]{
  color:var(--paper);
  background:linear-gradient(90deg,rgba(56,240,216,.16),rgba(56,240,216,0));
  border-left-color:var(--cyan);
}
.rail-code{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--gold)}
.rail-link[aria-current="page"] .rail-code{color:var(--cyan)}
.rail-name{font-size:16px;font-weight:600;letter-spacing:-.01em}
.rail-foot{margin-top:auto;padding:16px 12px 0;border-top:1px solid var(--line-soft)}
.rail-foot__note{font-size:12.5px;color:rgba(242,237,228,.6);margin-bottom:10px}
.rail-foot__btn{width:100%;justify-content:center}

.nav-scrim{
  position:fixed;inset:0;z-index:54;
  background:rgba(5,9,18,.68);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.nav-scrim[data-open="true"]{opacity:1;pointer-events:auto}
body[data-nav-open="true"]{overflow:hidden}

/* --- 6. footer --- */
.site-footer{
  position:relative;z-index:2;
  margin-top:clamp(48px,8vw,120px);
  padding-top:clamp(40px,6vw,72px);
  background:linear-gradient(180deg,rgba(16,27,54,.88),rgba(10,16,32,1));
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;gap:clamp(22px,3vw,48px);
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
}
.footer-logo{font-size:20px;font-weight:900;letter-spacing:-.02em;margin-bottom:10px}
.footer-tagline{font-size:14px;line-height:1.8;color:rgba(242,237,228,.66);max-width:32em}
.footer-meta{margin-top:14px;font-size:11.5px;letter-spacing:.14em;color:var(--gold)}
.footer-title{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list li{font-size:14px;color:rgba(242,237,228,.66);line-height:1.7}
.footer-list--plain li{display:flex;flex-wrap:wrap;gap:8px}
.footer-key{
  display:inline-block;min-width:34px;font-size:11px;letter-spacing:.12em;
  color:var(--grey);padding-top:2px;
}
.footer-link{
  position:relative;color:rgba(242,237,228,.7);text-decoration:none;font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-link::before{content:"";position:absolute;left:0;top:50%;width:0;height:1px;background:var(--cyan);transition:width .2s}
.footer-link:hover{color:var(--cyan);padding-left:12px}
.footer-link:hover::before{width:8px}
.footer-link[aria-current="page"]{color:var(--cyan)}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:clamp(28px,4vw,48px);padding:18px 0 28px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:rgba(242,237,228,.6);
}
.footer-icp{color:rgba(242,237,228,.66);font-size:12px;letter-spacing:.1em}
.footer-legal{color:rgba(242,237,228,.7);text-decoration:none;font-size:13px}
.footer-legal:hover{color:var(--cyan)}

.to-top{
  position:fixed;right:clamp(14px,2.4vw,28px);bottom:clamp(14px,2.4vw,28px);z-index:58;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  width:56px;height:56px;padding:0;cursor:pointer;
  border:1px solid rgba(56,240,216,.42);border-radius:16px;
  background:rgba(16,27,54,.92);color:var(--cyan);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,box-shadow .25s,border-color .25s;
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:none}
.to-top:hover{border-color:var(--cyan);box-shadow:0 0 0 1px rgba(56,240,216,.5),0 12px 30px rgba(56,240,216,.18)}
.to-top__arrow{font-size:14px;line-height:1}
.to-top__code{font-size:9.5px;letter-spacing:.14em}

/* --- 7. buttons / chips / cards --- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border:1px solid transparent;border-radius:999px;
  font-family:inherit;font-size:14px;font-weight:600;letter-spacing:.01em;
  text-decoration:none;cursor:pointer;background:transparent;color:var(--paper);
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn--sm{padding:8px 14px;font-size:13px}
.btn--cta{background:linear-gradient(120deg,rgba(56,240,216,.18),rgba(232,183,92,.14));border-color:rgba(56,240,216,.45)}
.btn--cta:hover{border-color:var(--cyan);box-shadow:0 0 0 1px rgba(56,240,216,.35),0 10px 26px rgba(56,240,216,.16);transform:translateY(-1px)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#04121a}
.btn--primary:hover{box-shadow:0 10px 26px rgba(56,240,216,.28);transform:translateY(-1px)}
.btn--gold{background:var(--gold);border-color:var(--gold);color:#20160a}
.btn--gold:hover{box-shadow:0 10px 26px rgba(232,183,92,.26);transform:translateY(-1px)}
.btn--ghost{border-color:rgba(242,237,228,.28)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;
  border:1px solid var(--line);color:rgba(242,237,228,.74);background:rgba(24,39,65,.55);
}
.chip--cyan{border-color:rgba(56,240,216,.45);color:var(--cyan)}
.chip--gold{border-color:rgba(232,183,92,.45);color:var(--gold)}
.chip--magenta{border-color:rgba(224,70,140,.45);color:var(--magenta)}
.tag{
  display:inline-block;padding:3px 9px;border-radius:6px;font-size:12px;line-height:1.6;
  background:rgba(224,70,140,.14);border:1px solid rgba(224,70,140,.34);color:#ffb9d8;
}
.tag--moss{background:rgba(95,125,106,.18);border-color:rgba(95,125,106,.5);color:#b8d3c2}
.tag--clay{background:rgba(181,113,79,.16);border-color:rgba(181,113,79,.5);color:#e6b79b}

.card{
  position:relative;border-radius:var(--radius);padding:clamp(18px,2.4vw,26px);
  background:linear-gradient(160deg,rgba(24,39,65,.94),rgba(16,27,54,.9));
  border:1px solid rgba(74,85,104,.5);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.card:hover{border-color:rgba(56,240,216,.55);box-shadow:0 18px 44px rgba(6,10,20,.55);transform:translateY(-2px)}
.panel{
  border-radius:var(--radius);padding:clamp(20px,3vw,34px);
  background:linear-gradient(150deg,rgba(16,27,54,.92),rgba(10,16,32,.88));
  border:1px solid var(--line-soft);
}
.panel--tilt{transform:rotate(-.5deg)}

.stat__num{display:block;font-family:var(--mono);font-size:clamp(1.6rem,3vw,2.6rem);line-height:1.1;color:var(--cyan)}
.stat__label{font-size:13px;color:rgba(242,237,228,.66)}

/* --- 8. grids & media --- */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(0,7fr) minmax(0,3fr)}

.media-frame{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid rgba(56,240,216,.22);
  background:linear-gradient(150deg,var(--panel),var(--ink-2));
  aspect-ratio:var(--ratio,16 / 10);
}
.media-frame > img,.media-frame > svg,.media-frame > video{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 52%,rgba(10,16,32,.6));
}
.media-frame--tall{--ratio:3 / 4}
.media-frame--wide{--ratio:21 / 9}
.media-frame--square{--ratio:1 / 1}
.media-frame--empty::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(56,240,216,.09) 0 1px,transparent 1px 14px);
}
.media-frame__ghost{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:rgba(56,240,216,.55);
}
.media-frame__label{
  position:absolute;left:12px;bottom:12px;z-index:2;
  padding:4px 11px;border-radius:999px;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--paper);
  background:rgba(10,16,32,.8);border:1px solid rgba(56,240,216,.3);
}

/* --- 9. breadcrumb --- */
.breadcrumb{font-size:13px;color:rgba(242,237,228,.6)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a{color:rgba(242,237,228,.76);text-decoration:none;border-bottom:1px solid rgba(56,240,216,.32)}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumb__sep{color:var(--grey)}
.breadcrumb [aria-current="page"]{font-family:var(--mono);font-size:12px;color:var(--paper)}

/* --- 10. motion --- */
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .52s ease,transform .52s cubic-bezier(.2,.7,.3,1)}
html.js .reveal.is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html.js .reveal{opacity:1;transform:none}
  .to-top{transform:none}
}

/* --- 11. responsive --- */
@media (min-width:1180px){
  .topnav{display:flex}
  .header-actions{margin-left:14px}
}
@media (max-width:1179px){
  .header-scope{display:none}
}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--asym{grid-template-columns:minmax(0,1fr)}
}
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  .rail-nav{
    width:var(--rail-w);padding:24px 10px;justify-content:center;
    gap:10px;box-shadow:none;transform:none;
  }
  .rail-head{display:none}
  .rail-list{gap:6px}
  .rail-link{flex-direction:column;align-items:flex-start;gap:3px;padding:11px 10px;border-left-width:2px;border-radius:10px}
  .rail-name{font-size:14px}
  .rail-foot{display:none}
  .nav-toggle{display:none}
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:600px){
  .brand__sub{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-base{flex-direction:column;align-items:flex-start}
  .header-actions .btn--sm{padding:8px 12px}
}