/* ===== NG游艺会馆 · shared site.css ===== */

/* reset */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--fog);
  background:var(--ink-800);
  background-image:radial-gradient(1200px 620px at 82% -12%,rgba(36,224,208,.10),transparent 62%),
                   radial-gradient(900px 520px at 6% 8%,rgba(255,106,77,.07),transparent 66%);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0}
ul[class],ol[class]{list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,video{display:block;max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px;border-radius:6px}

/* tokens */
:root{
  --ink-900:#031019;
  --ink-800:#061826;
  --ink-700:#0B2135;
  --ink-600:#123B52;
  --cyan:#24E0D0;
  --cyan-soft:#B7FFF8;
  --coral:#FF6A4D;
  --gold:#E9C77E;
  --fog:#F3F7F6;
  --salt:#9CB4C1;
  --sand:#F5EFE3;
  --sand-ink:#082033;

  --line:rgba(183,255,248,.14);
  --line-strong:rgba(36,224,208,.55);
  --line-gold:rgba(233,199,126,.24);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --r-pill:999px;
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --ease:cubic-bezier(.22,1,.36,1);
  --gutter:clamp(18px,4.2vw,64px);
  --header-h:88px;
}

/* layout */
.container{width:min(1240px,calc(100% - var(--gutter) * 2));margin-inline:auto}
.section{padding-block:clamp(48px,7vw,96px)}
#main-content{scroll-margin-top:110px}

/* ===== header ===== */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  padding:16px clamp(14px,3vw,30px) 14px;
  background:linear-gradient(180deg,rgba(6,24,38,.88),rgba(6,24,38,0));
  transition:padding .36s var(--ease),background .36s var(--ease);
}
.site-header.is-condensed{
  padding-top:8px;
  padding-bottom:8px;
  background:linear-gradient(180deg,rgba(3,16,25,.96),rgba(3,16,25,.55) 68%,rgba(3,16,25,0));
}
.header-rail{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  width:min(1320px,100%);
  margin-inline:auto;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:7px 20px 7px 8px;
  border-radius:var(--r-pill);
  background:rgba(11,33,53,.82);
  border:1px solid var(--line);
  box-shadow:0 20px 44px -30px #000,inset 0 1px 0 rgba(183,255,248,.08);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:border-color .28s var(--ease),background .28s var(--ease),padding .36s var(--ease);
}
.brand:hover{border-color:var(--line-strong);background:rgba(18,59,82,.9)}
.brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:40px;height:40px;
  border-radius:14px 14px 20px 14px;
  background:linear-gradient(150deg,var(--cyan),#0d8f8a);
  color:var(--ink-900);
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  box-shadow:0 0 22px -6px rgba(36,224,208,.7);
}
.brand__mark::after{
  content:"";
  position:absolute;
  right:-4px;bottom:-4px;
  width:11px;height:11px;
  border-radius:50%;
  background:var(--coral);
  border:2px solid var(--ink-800);
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:16px;letter-spacing:.01em;color:var(--fog)}
.brand__desc{margin-top:4px;font-size:11px;letter-spacing:.2em;color:var(--salt)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 18px 10px 14px;
  border-radius:var(--r-pill);
  background:rgba(11,33,53,.86);
  border:1px solid var(--line);
  color:var(--fog);
  font-size:13px;
  letter-spacing:.14em;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:border-color .26s var(--ease),color .26s var(--ease);
}
.nav-toggle:hover,.nav-toggle[aria-expanded="true"]{border-color:var(--line-strong);color:var(--cyan-soft)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:var(--cyan);transition:transform .3s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

.nav{
  display:flex;
  align-items:center;
  gap:8px;
  padding:7px;
  border-radius:var(--r-pill);
  background:rgba(11,33,53,.8);
  border:1px solid var(--line);
  box-shadow:0 22px 48px -32px #000,inset 0 1px 0 rgba(183,255,248,.06);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:padding .36s var(--ease);
}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__item{display:flex}
.nav__link{
  display:inline-flex;
  align-items:center;
  padding:9px 14px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:14px;
  font-weight:500;
  color:rgba(243,247,246,.8);
  transition:color .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.nav__link:hover{color:var(--cyan-soft);background:rgba(36,224,208,.1)}
.nav__link[aria-current="page"]{
  color:var(--cyan);
  border-color:rgba(36,224,208,.8);
  background:rgba(36,224,208,.09);
  box-shadow:0 0 0 4px rgba(36,224,208,.07);
}
.nav__cta{margin-left:4px}

.header-progress{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--gold) 58%,var(--coral));
  opacity:.92;
  pointer-events:none;
}

.skip-link{
  position:absolute;
  top:8px;left:50%;
  z-index:200;
  padding:12px 24px;
  border-radius:var(--r-pill);
  background:var(--cyan);
  color:var(--ink-900);
  font-family:var(--font-display);
  font-weight:700;
  font-size:14px;
  transform:translate(-50%,-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:translate(-50%,0)}

/* mobile dock */
.mobile-dock{display:none}

/* ===== footer ===== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,104px);
  overflow:hidden;
  color:var(--salt);
  background:linear-gradient(180deg,var(--ink-700) 0%,var(--ink-800) 44%,var(--ink-900) 100%);
  border-top:1px solid var(--line-gold);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-180px;left:-140px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,208,.18),transparent 68%);
  pointer-events:none;
}
.site-footer::after{
  content:"";
  position:absolute;
  right:-12%;bottom:-45%;
  width:70%;height:360px;
  background:radial-gradient(ellipse at 40% 50%,rgba(255,106,77,.16),transparent 70%);
  pointer-events:none;
}
.footer-inner{position:relative;z-index:1;padding-block:clamp(44px,6vw,82px) 0}
.footer-top{
  display:grid;
  grid-template-columns:minmax(230px,4fr) minmax(0,8fr);
  gap:clamp(28px,4vw,60px);
  align-items:start;
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start}
.footer-brand__line{
  font-family:var(--font-display);
  font-size:clamp(19px,2.2vw,25px);
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
  color:var(--fog);
  max-width:20ch;
}
.footer-brand__meta{
  margin-top:14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--salt);
}
.footer-brand__cta{margin-top:24px}

.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.4vw,30px)}
.footer-col{display:flex;flex-direction:column;gap:12px;min-width:0}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--gold);
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14px;
  color:rgba(243,247,246,.78);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover{color:var(--cyan);transform:translateX(3px)}
.footer-text{
  font-size:13.5px;
  line-height:1.7;
  color:var(--salt);
  overflow-wrap:anywhere;
}
.footer-col--feedback{
  gap:14px;
  padding:20px 18px 22px;
  border-radius:22px;
  border:1px solid rgba(255,106,77,.44);
  background:linear-gradient(158deg,rgba(255,106,77,.17),rgba(255,106,77,.04) 72%);
  box-shadow:0 26px 54px -38px rgba(255,106,77,.85);
}
.footer-col--feedback .footer-col__title{color:var(--coral)}
.footer-col--feedback .footer-text{color:rgba(243,247,246,.82)}
.footer-col--feedback .footer-link{
  display:inline-flex;
  align-items:center;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:var(--coral);
  color:var(--ink-900);
  font-family:var(--font-display);
  font-weight:700;
  font-size:14px;
  box-shadow:0 14px 28px -18px rgba(255,106,77,.95);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.footer-col--feedback .footer-link:hover{
  color:var(--ink-900);
  transform:translateY(-2px);
  box-shadow:0 0 0 4px rgba(255,106,77,.2);
}
.footer-service{
  margin-top:clamp(28px,4vw,46px);
  padding:16px 20px;
  border-radius:var(--r-md);
  border:1px dashed rgba(233,199,126,.32);
  background:rgba(3,16,25,.42);
  font-size:13px;
  line-height:1.75;
  color:var(--salt);
}
.footer-bottom{
  margin-top:clamp(22px,3vw,34px);
  padding-block:20px 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 26px;
  font-size:12.5px;
  color:var(--salt);
}
.footer-legal{font-family:var(--font-mono);letter-spacing:.06em}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:8px 20px}
.footer-legal__links a{color:var(--salt);transition:color .2s var(--ease)}
.footer-legal__links a:hover{color:var(--cyan)}
.footer-copy{font-family:var(--font-mono);letter-spacing:.06em}

/* ===== shared components ===== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.24em;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:28px;height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
.display{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(40px,7vw,96px);
  line-height:.98;
  letter-spacing:-.03em;
  color:var(--fog);
}
.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(26px,3.6vw,44px);
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--fog);
}
.lede{
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.8;
  color:rgba(243,247,246,.82);
  max-width:38em;
}
.prose{max-width:68ch;font-size:16.5px;line-height:1.85;color:rgba(243,247,246,.86)}
.prose p + p{margin-top:1.1em}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(36,224,208,.4)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--sm{padding:9px 18px;font-size:13px}
.btn--coral{background:var(--coral);color:var(--ink-900)}
.btn--coral:hover{box-shadow:0 0 0 4px rgba(255,106,77,.2),0 18px 34px -22px rgba(255,106,77,.95)}
.btn--cyan{background:var(--cyan);color:var(--ink-900)}
.btn--cyan:hover{box-shadow:0 0 0 4px rgba(36,224,208,.18),0 18px 34px -22px rgba(36,224,208,.9)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--fog)}
.btn--ghost:hover{border-color:var(--line-strong);color:var(--cyan-soft);background:rgba(36,224,208,.07)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid rgba(233,199,126,.42);
  background:rgba(233,199,126,.08);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--gold);
}
.tag--cyan{border-color:rgba(36,224,208,.45);background:rgba(36,224,208,.08);color:var(--cyan)}

.card{
  padding:clamp(18px,2.4vw,28px);
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(18,59,82,.86),rgba(11,33,53,.94));
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px)}

.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,4fr)}
.grid--halves{grid-template-columns:repeat(2,minmax(0,1fr))}

.breadcrumb{font-size:12.5px;letter-spacing:.08em;color:var(--salt)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__list li + li::before{content:"/";margin-right:8px;color:rgba(156,180,193,.5)}
.breadcrumb__link{color:var(--salt);transition:color .2s var(--ease)}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__link[aria-current="page"]{color:var(--fog)}

/* reusable image containers */
.media{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-radius:var(--r-lg);
  aspect-ratio:16 / 9;
  background:linear-gradient(150deg,var(--ink-600),var(--ink-900));
  border:1px solid var(--line);
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(205deg,rgba(36,224,208,.2),transparent 46%),
    radial-gradient(circle at 82% 88%,rgba(255,106,77,.2),transparent 56%);
  pointer-events:none;
}
.media__img{width:100%;height:100%;object-fit:cover}
.media--wide{aspect-ratio:21 / 9}
.media--portrait{aspect-ratio:4 / 5}
.media__caption{margin-top:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--salt)}

/* motion */
html.js [data-reveal]{
  opacity:0;
  transform:translate3d(0,22px,0);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
}
html.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ===== responsive ===== */
@media (max-width:1080px){
  .site-header{padding-top:12px}
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    padding:14px;
    border-radius:26px;
    background:rgba(6,24,38,.97);
    border:1px solid var(--line-strong);
    box-shadow:0 34px 64px -34px #000;
  }
  .nav[data-open="true"]{display:flex;animation:nav-drop .3s var(--ease) both}
  .nav__list{flex-direction:column;align-items:stretch;gap:4px}
  .nav__item{display:block}
  .nav__link{width:100%;justify-content:flex-start;padding:13px 16px;border-radius:16px;font-size:15px}
  .nav__cta{width:100%;margin-left:0;padding:13px 18px}

  .footer-top{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .footer-brand__line{max-width:26ch}
}
@keyframes nav-drop{
  from{opacity:0;transform:translateY(-10px)}
  to{opacity:1;transform:none}
}
@media (max-width:900px){
  .grid--split,.grid--halves{grid-template-columns:1fr}
}
@media (max-width:720px){
  .mobile-dock{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:130;
    padding:8px 10px calc(8px + env(safe-area-inset-bottom,0px));
    background:rgba(3,16,25,.95);
    border-top:1px solid var(--line);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
  }
  .mobile-dock__link{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:6px;
    padding:8px 4px;
    border-radius:14px;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--salt);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .mobile-dock__link::before{
    content:"";
    width:16px;height:3px;
    border-radius:2px;
    background:currentColor;
    opacity:.6;
  }
  .mobile-dock__link:hover,.mobile-dock__link:focus-visible{color:var(--cyan-soft);background:rgba(36,224,208,.08)}
  .mobile-dock__link[aria-current="page"]{color:var(--cyan)}
  body{padding-bottom:78px}
  .brand__desc{display:none}
  .brand{padding:6px 16px 6px 6px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-service{padding:14px 16px}
}
@media (max-width:420px){
  .nav-toggle__label{display:none}
  .nav-toggle{padding:11px 14px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js [data-reveal]{opacity:1;transform:none}
  .btn:hover,.card:hover,.footer-link:hover,.footer-col--feedback .footer-link:hover{transform:none}
}