/* roulang page: index */
:root{
--y1:#2450c8;
--y2:#ff7a45;
--bg:#f4f6fc;
--fg:#131a2c;
--dim:#5f6a84;
--line:#e3e8f4;
--rd:14px;
--sd:0 10px 28px rgba(20,32,72,.08);
--sp:clamp(48px,7vw,88px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.68 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.jvg-wrap{width:min(1180px,92%);margin-inline:auto}
.jvg-top{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.jvg-top-in{display:flex;align-items:center;gap:22px;min-height:66px}
.jvg-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:.5px;flex:0 0 auto}
.jvg-logo i{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--y1),#5f83f2);color:#fff;font-style:normal;font-size:15px;font-weight:800;display:grid;place-items:center}
.jvg-nav{margin-left:auto;display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.jvg-nav::-webkit-scrollbar{display:none}
.jvg-nav a{display:inline-flex;align-items:center;height:44px;padding:0 13px;border-radius:10px;font-size:15px;color:var(--dim);white-space:nowrap;transition:color .18s,background .18s}
.jvg-nav a:hover{color:var(--y1);background:#eef3ff}
.jvg-nav a.jvg-on{color:var(--y1);font-weight:700;background:#eef3ff}
.jvg-hero{position:relative;isolation:isolate;overflow:hidden;background:#0b1430;color:#fff}
.jvg-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;z-index:-2}
.jvg-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(105deg,rgba(8,15,38,.95),rgba(8,15,38,.76) 48%,rgba(8,15,38,.32))}
.jvg-hero-in{padding:clamp(60px,8vw,110px) 0}
.jvg-kicker{display:inline-block;border:1px solid rgba(169,193,255,.42);border-radius:999px;padding:5px 14px;font-size:13px;letter-spacing:2px;color:#a9c1ff}
.jvg-hero h1{margin-top:18px;font-size:clamp(30px,5vw,52px);letter-spacing:1px}
.jvg-hero h1 span{display:block;margin-top:10px;font-size:.6em;font-weight:600;color:#a9c1ff;letter-spacing:3px}
.jvg-sub{margin-top:18px;max-width:32em;font-size:clamp(16px,1.9vw,19px);color:#e0e8ff}
.jvg-lead{margin-top:14px;max-width:46em;font-size:15px;line-height:1.9;color:#c2cee9}
.jvg-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.jvg-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:12px;background:var(--y1);color:#fff;font-size:15px;font-weight:600;box-shadow:0 10px 22px rgba(36,80,200,.3);transition:transform .2s,box-shadow .2s}
.jvg-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(36,80,200,.36)}
.jvg-btn-ghost{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.42);box-shadow:none}
.jvg-btn-ghost:hover{background:rgba(255,255,255,.2);box-shadow:none}
.jvg-sec{padding:var(--sp) 0;scroll-margin-top:96px}
.jvg-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.jvg-head{max-width:760px;margin-bottom:30px}
.jvg-head h2{font-size:clamp(21px,2.6vw,28px);letter-spacing:.4px}
.jvg-head h2 em{font-style:normal;color:var(--y1)}
.jvg-head p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--dim)}
.jvg-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.jvg-four{grid-template-columns:repeat(4,1fr)}
.jvg-card{background:#fff;border:1px solid var(--line);border-radius:var(--rd);overflow:hidden;box-shadow:var(--sd);transition:transform .22s,box-shadow .22s}
.jvg-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(20,32,72,.14)}
.jvg-thumb{position:relative;aspect-ratio:16/22;overflow:hidden;background:#dfe5f2}
.jvg-thumb img{width:100%;height:100%;object-fit:cover}
.jvg-tag{position:absolute;top:10px;left:10px;padding:4px 9px;border-radius:8px;background:rgba(11,20,44,.74);color:#fff;font-size:12px;letter-spacing:.5px}
.jvg-rate{position:absolute;right:10px;bottom:10px;padding:3px 9px;border-radius:8px;background:var(--y2);color:#fff;font-size:13px;font-weight:700}
.jvg-card-b{padding:14px 15px 16px}
.jvg-card-b h3{font-size:16px}
.jvg-card-b p{margin-top:6px;font-size:14px;color:var(--dim)}
.jvg-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.jvg-cat{background:#fff;border:1px solid var(--line);border-radius:var(--rd);padding:20px 20px 22px;box-shadow:var(--sd)}
.jvg-cat h3{display:flex;align-items:center;gap:9px;font-size:16px}
.jvg-cat h3::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--y2);flex:0 0 auto}
.jvg-cat p{margin-top:9px;font-size:14px;line-height:1.8;color:var(--dim)}
.jvg-hl{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.jvg-hl li{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--rd);padding:17px 19px;box-shadow:var(--sd)}
.jvg-hl b{flex:0 0 auto;font-size:25px;line-height:1.1;color:var(--y2);font-variant-numeric:tabular-nums}
.jvg-hl h3{font-size:16px}
.jvg-hl p{margin-top:6px;font-size:14px;color:var(--dim)}
.jvg-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px}
.jvg-rank li{display:flex;align-items:center;gap:12px;padding:13px 2px;border-bottom:1px dashed var(--line)}
.jvg-rank i{flex:0 0 auto;width:26px;font-style:normal;font-weight:800;font-size:15px;color:#b9c4dc;font-variant-numeric:tabular-nums}
.jvg-rank li:nth-child(-n+3) i{color:var(--y2)}
.jvg-rank-t{font-size:15px;font-weight:600}
.jvg-rank-m{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);white-space:nowrap}
.jvg-pill{padding:2px 9px;border-radius:999px;background:#eef3ff;color:var(--y1);font-size:12px}
.jvg-feat{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.jvg-feat article{position:relative;overflow:hidden;border-radius:calc(var(--rd) + 4px);box-shadow:var(--sd);background:#101a36}
.jvg-feat .jvg-thumb{aspect-ratio:16/9}
.jvg-feat-t{position:absolute;inset:auto 0 0 0;padding:20px;background:linear-gradient(transparent,rgba(8,14,32,.9));color:#fff}
.jvg-feat-t h3{font-size:18px}
.jvg-feat-t p{margin-top:6px;font-size:14px;color:#cfd9f0}
.jvg-feat-t span{display:inline-block;margin-top:10px;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.16);font-size:12px}
.jvg-news{display:grid;grid-template-columns:repeat(2,1fr);gap:0 34px}
.jvg-news li{padding:16px 0;border-bottom:1px solid var(--line)}
.jvg-news h3{font-size:16px}
.jvg-news p{margin-top:6px;font-size:14px;color:var(--dim)}
.jvg-news time{display:inline-block;margin-bottom:6px;font-size:12.5px;font-weight:600;color:var(--y1)}
.jvg-trust{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:28px 30px;border-radius:calc(var(--rd) + 6px);background:linear-gradient(120deg,#152murder,#1d3a86);background:linear-gradient(120deg,#14224a,#1d3a86);color:#fff}
.jvg-trust h3{font-size:15.5px}
.jvg-trust p{margin-top:7px;font-size:13.5px;line-height:1.75;color:#c4d0ea}
.jvg-quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.jvg-quotes blockquote{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--rd);padding:20px;box-shadow:var(--sd)}
.jvg-quotes p{font-size:14.5px;line-height:1.85;color:#3a4257}
.jvg-quotes cite{display:block;margin-top:12px;font-style:normal;font-size:13px;color:var(--dim)}
.jvg-faq{display:grid;gap:12px;max-width:900px}
.jvg-faq details{background:#fff;border:1px solid var(--line);border-radius:var(--rd);padding:15px 18px;box-shadow:var(--sd)}
.jvg-faq summary{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:26px;font-size:15.5px;font-weight:600;cursor:pointer;list-style:none}
.jvg-faq summary::-webkit-details-marker{display:none}
.jvg-faq summary::after{content:"+";flex:0 0 auto;color:var(--y1);font-size:20px;font-weight:700;line-height:1}
.jvg-faq details[open] summary::after{content:"–"}
.jvg-faq details p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--dim)}
.jvg-cta{text-align:center;padding:clamp(38px,5.5vw,68px) 26px;border:1px solid #d7e2fb;border-radius:calc(var(--rd) + 8px);background:linear-gradient(160deg,#eef3ff,#fff);box-shadow:var(--sd)}
.jvg-cta h2{font-size:clamp(21px,2.7vw,28px)}
.jvg-cta p{margin:12px auto 0;max-width:640px;font-size:15px;line-height:1.85;color:var(--dim)}
.jvg-cta .jvg-btn{margin-top:24px}
.jvg-foot{margin-top:var(--sp);padding-top:56px;background:#0c152e;color:#c3cee8}
.jvg-foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;padding-bottom:38px}
.jvg-foot h4{margin-bottom:14px;font-size:15px;color:#fff}
.jvg-foot li{padding:6px 0;font-size:14px;color:#a9b5d0}
.jvg-foot li a:hover{color:#a9c1ff}
.jvg-foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff}
.jvg-foot-brand i{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--y1),#5f83f2);font-style:normal;font-size:14px;display:grid;place-items:center}
.jvg-foot p{margin-top:12px;font-size:14px;line-height:1.85;color:#9fachd;color:#9facc7}
.jvg-copy{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8b98b8}
@media (max-width:1024px){
.jvg-four{grid-template-columns:repeat(2,1fr)}
.jvg-cats{grid-template-columns:repeat(2,1fr)}
.jvg-trust{grid-template-columns:repeat(2,1fr);gap:18px}
.jvg-foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
.jvg-top-in{flex-wrap:wrap;gap:6px;padding:10px 0;min-height:0}
.jvg-nav{order:3;width:100%;margin-left:0;padding-bottom:2px}
.jvg-nav a{padding:0 10px;font-size:14px}
.jvg-hero{scroll-margin-top:0}
.jvg-sec{scroll-margin-top:126px}
.jvg-cards,.jvg-four{grid-template-columns:repeat(2,1fr);gap:16px}
.jvg-hl,.jvg-rank,.jvg-feat,.jvg-news,.jvg-quotes{grid-template-columns:1fr}
.jvg-head{margin-bottom:24px}
}
@media (max-width:520px){
.jvg-cards,.jvg-four{grid-template-columns:repeat(2,1fr);gap:13px}
.jvg-card-b{padding:12px 12px 14px}
.jvg-card-b h3{font-size:15px}
.jvg-cats{grid-template-columns:1fr}
.jvg-trust{grid-template-columns:1fr;padding:22px}
.jvg-foot-grid{grid-template-columns:1fr;gap:26px}
.jvg-btn{width:100%}
.jvg-hero h1{font-size:29px}
.jvg-hero h1 span{letter-spacing:2px}
.jvg-hl li{padding:15px}
}