:root{
  --bg:#151C3A;
  --panel:#1A2350;
  --card:#1E2A5C;
  --text:#E8ECF6;
  --muted:#A3ACBF;
  --brand:#5B8CFF;
  --brand-2:#7AE3FF;
  --shadow:0 6px 24px rgba(0,0,0,.18);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,"Helvetica Neue",Arial,"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 800px at 80% -10%, rgba(123,198,255,.16), transparent 60%),
              radial-gradient(1000px 600px at -10% 0%, rgba(130,255,241,.14), transparent 50%),
              linear-gradient(180deg, #1C2450, #151C3A 40%);
}

.container{
  width:min(1120px, 92%);
  margin-inline:auto;
}

.site-header{
  position:sticky;top:0;z-index:10;
  backdrop-filter:saturate(140%) blur(10px);
  background: rgba(16,22,51,.6);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.5px}
.brand img{filter:drop-shadow(0 2px 6px rgba(91,140,255,.4))}

#nav-toggle{display:none}
.hamburger{display:none;flex-direction:column;gap:6px;cursor:pointer}
.hamburger span{width:24px;height:2px;background:#dbe3ff;border-radius:2px}

.menu{display:flex;align-items:center;gap:18px}
.menu a{color:var(--text);text-decoration:none;opacity:.9}
.menu a:hover{opacity:1}
.btn{padding:8px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.14)}
.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#0a0f20;border:none;box-shadow:var(--shadow)}
.btn--ghost{background:transparent;color:var(--text)}

.hero{position:relative;overflow:hidden}
.hero__content{padding:88px 0 64px; text-align:center; position:relative; z-index:1}
.hero h1{margin:0 0 12px;font-size: clamp(28px, 5vw, 48px)}
.hero p{margin:0 auto 24px;max-width:680px;color:var(--muted)}
.hero__actions{display:flex;justify-content:center;gap:12px}
.hero__bg{position:absolute;inset:0;pointer-events:none;z-index:0;background:
  radial-gradient(500px 300px at 20% 10%, rgba(123,198,255,.15), transparent 60%),
  radial-gradient(600px 320px at 90% 20%, rgba(122,227,255,.12), transparent 60%)}

.section{padding:64px 0}
.section--alt{background:linear-gradient(180deg, rgba(255,255,255,.03), transparent)}
.section__title{margin:0 0 24px;font-size: clamp(22px, 3.4vw, 32px)}
.section__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.link{color:var(--brand);text-decoration:none}

.grid{display:grid;gap:16px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}

.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.card__icon{font-size:22px;margin-bottom:8px}
.card__icon img{display:block;width:100%;max-width:100%;height:auto;max-height:140px;object-fit:contain;background:rgba(255,255,255,.02);border-radius:10px;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow)}

.media{display:grid;grid-template-columns:160px 1fr;gap:16px;align-items:center;background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:18px}
.media__illu{height:auto;min-height:120px;border-radius:10px;display:grid;place-items:center;overflow:visible;background:
  linear-gradient(135deg, rgba(91,140,255,.35), rgba(122,227,255,.25)),
  radial-gradient(120px 80px at 30% 20%, rgba(255,255,255,.22), transparent 60%),
  #0e1430;
}
.media__illu img{display:block;max-width:100%;max-height:180px;width:auto;height:auto;object-fit:contain;padding:8px;filter:drop-shadow(0 2px 8px rgba(0,0,0,.25))}
.media__illu--2{background:
  linear-gradient(135deg, rgba(122,227,255,.35), rgba(91,140,255,.25)),
  radial-gradient(120px 80px at 70% 30%, rgba(255,255,255,.22), transparent 60%),
  #0e1430;
}

.list{display:grid;gap:8px}
.list__item{display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:10px;background:var(--panel);border:1px solid rgba(255,255,255,.06);text-decoration:none;color:var(--text)}
.list__item time{color:var(--muted);font-variant-numeric:tabular-nums}
.list__item:hover{border-color:rgba(123,198,255,.35)}

.logos{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:center;justify-items:center;opacity:.9}
.logos img{width:100px;height:100px;opacity:.9;filter:grayscale(100%) brightness(1.4)}

.site-footer{border-top:1px solid rgba(255,255,255,.06);background:rgba(16,22,51,.6)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px;padding:28px 0}
.footer__bar{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid rgba(255,255,255,.06);color:var(--muted)}
.brand--footer{display:flex;align-items:center;gap:8px;color:var(--text);text-decoration:none;font-weight:700}
.muted{color:var(--muted)}
.list-plain{margin:0;padding-left:18px}
.text-center{text-align:center}

/* 覆盖层样式移除（现已不使用） */

@media (max-width: 900px){
  .grid--3{grid-template-columns:1fr}
  .grid--2{grid-template-columns:1fr}
  .media{grid-template-columns:1fr}
  .logos{grid-template-columns:repeat(2,1fr)}
}

@media (max-width: 760px){
  .hamburger{display:flex}
  .menu{position:absolute;inset:56px 0 auto 0;display:grid;padding:12px;background:rgba(16,22,51,.95);border-bottom:1px solid rgba(255,255,255,.06);transform-origin:top;transform:scaleY(0);transition:transform .2s ease}
  #nav-toggle:checked ~ .menu{transform:scaleY(1)}
}