.signal{position:relative;padding:clamp(72px,9vw,130px) 0;background:#050b17;overflow:hidden;border-top:1px solid rgba(148,163,184,.12);border-bottom:1px solid rgba(148,163,184,.12)}
.signal::before{content:"";position:absolute;inset:-30% auto auto 58%;width:48vw;height:48vw;background:radial-gradient(circle,rgba(34,211,238,.14),transparent 66%);filter:blur(34px);pointer-events:none}
.signal-head{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:clamp(28px,6vw,84px);align-items:end;margin-bottom:clamp(34px,5vw,60px)}
.signal-head h2{font-size:clamp(36px,5.4vw,68px);line-height:.98;letter-spacing:-.05em;color:#fff;margin:.25em 0 0;max-width:12ch}.signal-head h2 em{font-style:normal;color:#67e8f9}
.signal-intro{color:#9fb1c9;font-size:clamp(16px,1.4vw,19px);max-width:38ch}.signal-intro a{color:#b7f3ff;text-underline-offset:4px}
.signal-grid{position:relative;display:grid;grid-template-columns:1.35fr repeat(2,minmax(0,1fr));gap:16px}.signal-card{position:relative;display:flex;min-height:340px;flex-direction:column;justify-content:space-between;color:#fff;text-decoration:none;border:1px solid rgba(148,163,184,.18);border-radius:22px;padding:clamp(22px,2.7vw,34px);overflow:hidden;background:linear-gradient(145deg,#0b1628,#07101e);transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}.signal-card:first-child{min-height:430px}.signal-card:hover{transform:translateY(-5px);border-color:rgba(103,232,249,.58);box-shadow:0 28px 70px -38px rgba(34,211,238,.8)}
.signal-card::before,.signal-card::after{content:"";position:absolute;pointer-events:none}.signal-card::before{width:260px;height:260px;border:1px solid rgba(103,232,249,.18);border-radius:50%;right:-120px;top:-110px;box-shadow:0 0 0 32px rgba(103,232,249,.025),0 0 0 72px rgba(103,232,249,.018)}.signal-card::after{inset:auto 0 0;height:48%;background:linear-gradient(transparent,rgba(2,6,23,.42))}
.signal-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.28;filter:saturate(.85) contrast(1.08);transition:transform .5s ease}.signal-card:hover .signal-image{transform:scale(1.025)}
.signal-card[data-theme="blue"]::before{border-color:rgba(96,165,250,.3)}.signal-card[data-theme="violet"]::before{border-color:rgba(196,181,253,.32)}
.signal-meta,.signal-body{position:relative;z-index:1}.signal-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#8fa4c0;font:600 11px/1.3 var(--mono);letter-spacing:.1em;text-transform:uppercase}.signal-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#67e8f9;box-shadow:0 0 18px #22d3ee}.signal-body h3{font-size:clamp(23px,2.25vw,34px);line-height:1.08;letter-spacing:-.035em;margin:0 0 16px;max-width:16ch}.signal-card:not(:first-child) .signal-body h3{font-size:clamp(21px,1.8vw,27px)}.signal-body p{color:#a7b7cb;line-height:1.65;margin:0}.signal-read{display:inline-flex;align-items:center;gap:9px;color:#9ef2ff;font-weight:700;margin-top:24px}.signal-read span{transition:transform .25s ease}.signal-card:hover .signal-read span{transform:translateX(5px)}
.signal-empty{grid-column:1/-1;border:1px dashed rgba(148,163,184,.3);padding:32px;border-radius:18px;color:#9fb1c9}
.signal-page{min-height:100vh;background:#050b17;color:#e8eef8;padding:42px 0 100px}.signal-page .wrap{width:min(1080px,92vw);margin:auto}.signal-back{display:inline-flex;color:#9ef2ff;text-decoration:none;margin-bottom:48px}.signal-article{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:clamp(36px,7vw,90px)}.signal-article h1{font-size:clamp(42px,7vw,76px);line-height:.98;letter-spacing:-.055em;margin:.25em 0;color:#fff}.signal-lead{font-size:clamp(18px,2vw,23px);color:#b7c5d8;line-height:1.55}.signal-copy{max-width:720px}.signal-copy p{font-size:18px;line-height:1.8;color:#c2cede;margin:1.4em 0}.signal-aside{align-self:start;position:sticky;top:30px;border-top:2px solid #22d3ee;padding-top:18px}.signal-aside h2{font-size:12px;letter-spacing:.12em;text-transform:uppercase}.signal-aside li{color:#9fb1c9;margin:.8em 0}.signal-share{display:inline-flex;margin-top:20px;color:#9ef2ff}
.signal-hero-image{width:100%;max-height:520px;object-fit:cover;border-radius:22px;margin:28px 0 10px;border:1px solid rgba(148,163,184,.18)}
@media(max-width:920px){.signal-head{grid-template-columns:1fr}.signal-grid{grid-template-columns:1fr 1fr}.signal-card:first-child{grid-column:1/-1}.signal-article{grid-template-columns:1fr}.signal-aside{position:static}}
@media(max-width:620px){.signal-grid{grid-template-columns:1fr}.signal-card:first-child{grid-column:auto;min-height:390px}.signal-card{min-height:320px}.signal-meta{align-items:flex-start;flex-direction:column}.signal-page{padding-top:26px}}
@media(prefers-reduced-motion:reduce){.signal-card,.signal-read span,.signal-image{transition:none}.signal-card:hover,.signal-card:hover .signal-image{transform:none}}