@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#080c18;color:#d8dff0;line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:#7eb4ff;text-decoration:none;transition:color .2s}
a:hover{color:#ffb86c}
.xvh-shell{min-height:100vh;display:flex;flex-direction:column}

.xvh-tophead{position:sticky;top:0;z-index:900;background:rgba(8,12,24,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(126,180,255,.12)}
.xvh-tophead-inner{max-width:1120px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.xvh-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem;color:#eef3ff}
.xvh-brand img{border-radius:10px}
.xvh-nav-pc{display:none;gap:6px}
.xvh-nav-pc a{padding:8px 14px;border-radius:999px;color:#b8c4e0;font-size:.92rem}
.xvh-nav-pc a:hover,.xvh-nav-pc a[aria-current="page"]{background:rgba(79,107,255,.18);color:#fff}
.xvh-burger{width:42px;height:42px;border:none;background:rgba(255,255,255,.06);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.xvh-burger span{display:block;width:20px;height:2px;background:#eef3ff;border-radius:2px;transition:transform .25s}
.xvh-drawer{position:fixed;top:0;right:-280px;width:260px;height:100vh;background:#12182c;z-index:950;padding:80px 24px 24px;display:flex;flex-direction:column;gap:4px;transition:right .3s ease;box-shadow:-8px 0 32px rgba(0,0,0,.35)}
.xvh-drawer-open{right:0}
.xvh-drawer a{padding:14px 16px;border-radius:12px;color:#c8d4f0;font-size:1rem}
.xvh-drawer a:hover{background:rgba(79,107,255,.15);color:#fff}
.xvh-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:940;opacity:0;pointer-events:none;transition:opacity .3s}
.xvh-overlay-show{opacity:1;pointer-events:auto}
.xvh-menu-lock{overflow:hidden}

.xvh-float-dl{position:fixed;top:68px;left:0;right:0;z-index:880;background:rgba(12,16,32,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(126,180,255,.1);padding:8px 12px;transform:translateY(-120%);opacity:0;transition:transform .35s,opacity .35s;pointer-events:none}
.xvh-float-dl-show{transform:translateY(0);opacity:1;pointer-events:auto}
.xvh-float-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 4px;max-width:1120px;margin:0 auto}
.xvh-ad-unit{width:calc(20% - 4px);max-width:72px;text-align:center}
.xvh-ad-figure{margin:0}
.xvh-ad-figure img{width:56px;height:56px;border-radius:14px;object-fit:cover;margin:0 auto;box-shadow:0 4px 14px rgba(0,0,0,.25)}
.xvh-ad-label{font-size:10px;color:#8898b8;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.xvh-body-padded{padding-top:88px}

@media(min-width:768px){
  .xvh-nav-pc{display:flex}
  .xvh-burger{display:none}
  .xvh-ad-unit{width:calc(12.5% - 6px)}
  .xvh-ad-figure img{width:62px;height:62px}
  .xvh-body-padded{padding-top:96px}
}

.xvh-promo-band{padding:12px 20px 4px;background:linear-gradient(180deg,rgba(79,107,255,.08),transparent)}
.xvh-promo-band #xvh-promo-slot{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;max-width:1120px;margin:0 auto}

.xvh-main{flex:1}
.xvh-wrap{max-width:1120px;margin:0 auto;padding:0 20px}

.xvh-hero{position:relative;padding:48px 0 56px;overflow:hidden}
.xvh-hero::before{content:"";position:absolute;inset:-40% -20%;background:radial-gradient(ellipse at 30% 20%,rgba(79,107,255,.35),transparent 55%),radial-gradient(ellipse at 70% 60%,rgba(155,92,255,.22),transparent 50%);pointer-events:none}
.xvh-hero-grid{position:relative;display:grid;gap:32px;align-items:center}
.xvh-hero-tag{display:inline-block;padding:6px 14px;border-radius:999px;background:rgba(255,184,108,.12);color:#ffb86c;font-size:.82rem;font-weight:600;margin-bottom:14px;border:1px solid rgba(255,184,108,.25)}
.xvh-hero h1{font-size:clamp(1.65rem,5vw,2.35rem);line-height:1.35;color:#fff;font-weight:700;margin-bottom:16px}
.xvh-hero-lead{font-size:1.02rem;color:#a8b8d8;max-width:640px}
.xvh-hero-visual{border-radius:24px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.4);border:1px solid rgba(126,180,255,.15)}
.xvh-hero-visual img{width:100%;max-width:420px;margin:0 auto}

@media(min-width:768px){
  .xvh-hero{padding:64px 0 72px}
  .xvh-hero-grid{grid-template-columns:1.1fr .9fr}
}

.xvh-block{padding:52px 0}
.xvh-block-alt{background:linear-gradient(180deg,rgba(18,24,48,.6),rgba(8,12,24,0))}
.xvh-block h2{font-size:clamp(1.35rem,3.5vw,1.75rem);color:#fff;margin-bottom:18px;font-weight:700}
.xvh-block h3{font-size:1.12rem;color:#eef3ff;margin:22px 0 10px;font-weight:600}
.xvh-prose p{margin-bottom:16px;color:#b0bdd8}
.xvh-prose ul,.xvh-prose ol{margin:12px 0 16px 22px;color:#b0bdd8}
.xvh-prose li{margin-bottom:8px}

.xvh-duo{display:grid;gap:28px;align-items:center}
.xvh-duo-reverse .xvh-duo-shot{order:2}
@media(min-width:768px){
  .xvh-duo{grid-template-columns:1fr 1fr;gap:40px}
  .xvh-duo-reverse .xvh-duo-shot{order:2}
  .xvh-duo-reverse .xvh-duo-text{order:1}
}
.xvh-duo-shot{border-radius:20px;overflow:hidden;background:rgba(18,24,48,.8);border:1px solid rgba(126,180,255,.12);padding:12px}
.xvh-duo-shot figcaption{text-align:center;font-size:.85rem;color:#7888a8;margin-top:10px}

.xvh-tiles{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:540px){.xvh-tiles{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.xvh-tiles{grid-template-columns:repeat(3,1fr)}}
.xvh-tile{background:rgba(16,22,44,.85);border:1px solid rgba(126,180,255,.1);border-radius:18px;padding:22px;transition:transform .25s,border-color .25s}
.xvh-tile:hover{transform:translateY(-4px);border-color:rgba(126,180,255,.28)}
.xvh-tile h3{font-size:1rem;margin:0 0 8px;color:#eef3ff}
.xvh-tile p{font-size:.92rem;color:#98a8c8;margin:0}

.xvh-pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}
.xvh-pill{padding:8px 16px;border-radius:999px;background:rgba(79,107,255,.14);color:#a8c4ff;font-size:.88rem;border:1px solid rgba(79,107,255,.25)}

.xvh-quote{border-left:3px solid #ffb86c;padding:16px 20px;margin:24px 0;background:rgba(255,184,108,.06);border-radius:0 14px 14px 0;color:#c8d4f0;font-style:italic}

.xvh-cta-band{text-align:center;padding:56px 20px;background:linear-gradient(135deg,rgba(79,107,255,.2),rgba(155,92,255,.15));border-top:1px solid rgba(126,180,255,.12);border-bottom:1px solid rgba(126,180,255,.12)}
.xvh-cta-band h2{margin-bottom:12px}
.xvh-cta-band p{color:#a8b8d8;margin-bottom:24px;max-width:560px;margin-left:auto;margin-right:auto}
.xvh-dl-btn{display:inline-block;padding:14px 32px;border-radius:999px;background:linear-gradient(135deg,#4f6bff,#9b5cff);color:#fff;font-weight:600;font-size:1rem;box-shadow:0 8px 28px rgba(79,107,255,.35);transition:transform .2s,box-shadow .2s}
.xvh-dl-btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 36px rgba(79,107,255,.45)}

.xvh-crumb{padding:16px 0;font-size:.88rem;color:#7888a8}
.xvh-crumb a{color:#98b0d8}
.xvh-crumb span{margin:0 8px;color:#4a5878}

.xvh-page-head{padding:36px 0 28px;border-bottom:1px solid rgba(126,180,255,.1);margin-bottom:32px}
.xvh-page-head h1{font-size:clamp(1.5rem,4vw,2rem);color:#fff}

.xvh-foot{padding:32px 0 40px;border-top:1px solid rgba(126,180,255,.1);margin-top:auto}
.xvh-foot-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-bottom:16px}
.xvh-foot-nav a{color:#8898b8;font-size:.9rem;padding:6px 10px}
.xvh-foot-nav a:hover{color:#eef3ff}
.xvh-foot-copy{text-align:center;font-size:.82rem;color:#5a6888}

.xvh-err{text-align:center;padding:60px 20px 80px}
.xvh-err-code{font-size:4rem;font-weight:700;background:linear-gradient(135deg,#4f6bff,#ffb86c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.xvh-err h1{font-size:1.4rem;color:#fff;margin:12px 0}
.xvh-err p{color:#98a8c8;margin-bottom:24px}

@keyframes xvh-glow{0%,100%{opacity:.6}50%{opacity:1}}
.xvh-glow-dot{width:8px;height:8px;border-radius:50%;background:#4f6bff;display:inline-block;margin-right:8px;animation:xvh-glow 2s ease infinite}

@media(min-width:768px){
  .xvh-nav-pc{display:flex}
}