/* roulang page: index */
:root{
      --navy:#102a43;
      --blue:#1769aa;
      --blue-2:#2f80c9;
      --sky:#eaf4ff;
      --ink:#18324b;
      --muted:#6d8194;
      --line:#dce8f2;
      --paper:#ffffff;
      --soft:#f5f9fc;
      --gold:#d49a3a;
      --radius:22px;
      --shadow:0 18px 50px rgba(16,42,67,.10);
      --shadow-sm:0 8px 24px rgba(16,42,67,.08);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--soft);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      line-height:1.75;
      font-size:16px;
    }
    a{color:var(--blue);text-decoration:none;transition:.25s ease}
    a:hover{color:var(--navy)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    :focus-visible{outline:3px solid rgba(47,128,201,.35);outline-offset:3px}
    .container{width:min(1160px,calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(14px);
    }
    .nav-shell{
      min-height:78px;display:flex;align-items:center;gap:28px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;
      color:var(--navy);font-size:18px;font-weight:800;white-space:nowrap;
    }
    .brand-mark{
      width:38px;height:38px;border-radius:12px;
      display:grid;place-items:center;color:#fff;
      background:var(--navy);box-shadow:0 7px 16px rgba(16,42,67,.2);
    }
    .nav-panel{
      flex:1;display:flex;align-items:center;justify-content:space-between;
      padding:8px 10px 8px 16px;border:1px solid var(--line);
      border-radius:16px;background:#fbfdff;box-shadow:var(--shadow-sm);
    }
    .nav-links{display:flex;gap:6px;align-items:center}
    .nav-links a{
      padding:9px 15px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:700;
    }
    .nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
    .nav-cta,.button.primary{
      background:var(--blue);color:#fff!important;border-radius:11px;
      padding:11px 18px;font-weight:800;box-shadow:0 8px 18px rgba(23,105,170,.2);
    }
    .nav-cta:hover,.button.primary:hover{background:var(--navy);transform:translateY(-2px)}
    .hero{padding:82px 0 58px;background:linear-gradient(135deg,#f8fcff 0%,#eaf4ff 100%)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center}
    .eyebrow,.badge{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border:1px solid #c9e0f3;border-radius:999px;
      color:var(--blue);background:#fff;font-size:12px;font-weight:800;letter-spacing:.04em;
    }
    h1,h2,h3{margin:0;color:var(--navy);line-height:1.25;letter-spacing:-.03em}
    h1{font-size:clamp(38px,5vw,66px);margin:20px 0}
    h2{font-size:clamp(28px,3vw,42px)}
    h3{font-size:20px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:650px}
    .actions{display:flex;gap:13px;flex-wrap:wrap;margin:28px 0}
    .button{
      display:inline-flex;align-items:center;justify-content:center;
      min-height:48px;border:0;border-radius:12px;padding:12px 20px;
      font-weight:800;transition:.25s ease;
    }
    .button.secondary{background:#fff;color:var(--blue);border:1px solid #c9e0f3}
    .button.secondary:hover{border-color:var(--blue);transform:translateY(-2px)}
    .trust-row{display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .trust-row i{color:var(--gold);margin-right:6px}
    .hero-card{
      position:relative;background:var(--navy);border-radius:28px;padding:28px;color:#fff;
      min-height:330px;overflow:hidden;box-shadow:var(--shadow);
    }
    .hero-card:after{
      content:"";position:absolute;width:230px;height:230px;border-radius:50%;
      right:-70px;top:-70px;background:rgba(82,171,235,.18);
    }
    .hero-card h3{color:#fff;margin:16px 0 10px}
    .hero-card p{color:#c7d8e7;font-size:14px}
    .shield{font-size:38px;color:#72c3f4}
    .mini-list{position:relative;z-index:1;margin-top:24px;display:grid;gap:10px}
    .mini-list div{display:flex;gap:10px;align-items:center;padding:11px 13px;border:1px solid rgba(255,255,255,.13);border-radius:12px;color:#eaf4ff;font-size:13px}
    .mini-list i{color:#78d2a1}
    .section{padding:88px 0}
    .section.alt{background:#fff}
    .section-head{max-width:700px;margin-bottom:34px}
    .section-head p{color:var(--muted);margin:14px 0 0}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);
      padding:26px;box-shadow:var(--shadow-sm);transition:.25s ease;
    }
    .card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .icon-box{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--sky);color:var(--blue);font-size:19px;margin-bottom:20px}
    .card p{color:var(--muted);font-size:14px;margin:10px 0 0}
    .compare-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow-sm)}
    .compare{width:100%;min-width:680px;border-collapse:collapse}
    .compare th,.compare td{padding:18px 22px;border-bottom:1px solid var(--line);text-align:left}
    .compare th{background:#f4f9fd;color:var(--navy);font-size:14px}
    .compare td{font-size:14px;color:var(--muted)}
    .compare tr:last-child td{border-bottom:0}
    .compare .recommended{background:#eef8ff;color:var(--blue);font-weight:800}
    .check{color:#1a9b68}.cross{color:#d45c5c}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .step{position:relative;padding-top:14px}
    .step-no{font-size:42px;font-weight:900;color:#cfe5f5;line-height:1}
    .step h3{margin:12px 0 7px}
    .step p{color:var(--muted);font-size:14px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .price-card{position:relative}
    .price-card.featured{border:2px solid var(--blue);padding:25px}
    .price-card .tag{position:absolute;right:20px;top:20px;background:#e6f5ed;color:#198456;border-radius:999px;padding:5px 10px;font-size:11px;font-weight:800}
    .price{font-size:34px;font-weight:900;color:var(--navy);margin:16px 0 4px}
    .price small{font-size:13px;color:var(--muted);font-weight:500}
    .price-list{padding:0;margin:20px 0;list-style:none;color:var(--muted);font-size:14px}
    .price-list li{margin:10px 0}.price-list i{color:#1a9b68;margin-right:7px}
    .news-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:24px}
    .news-list{display:grid;gap:0}
    .news-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
    .news-item:first-child{padding-top:0}.news-item a{color:var(--navy);font-weight:800}.news-item span{color:var(--muted);font-size:13px;white-space:nowrap}
    .notice{background:var(--navy);color:#dcebf7;border-radius:var(--radius);padding:28px}
    .notice h3{color:#fff;margin-bottom:12px}.notice p{font-size:14px}
    .faq{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:22px}
    .faq-item h3{font-size:17px}.faq-item p{color:var(--muted);font-size:14px;margin:10px 0 0}
    .cta{padding:65px 0;background:var(--blue);color:#fff}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{color:#fff}.cta p{color:#d9efff;max-width:620px;margin:12px 0 0}
    .cta .button{background:#fff;color:var(--blue)}
    .site-footer{padding:42px 0 26px;background:var(--navy);color:#a9c0d3}
    .footer-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
    .footer-brand{color:#fff;font-weight:800;font-size:18px}.footer-note{max-width:520px;font-size:13px}
    .footer-links{display:flex;gap:18px;font-size:13px}.footer-links a{color:#c9dbea}.footer-links a:hover{color:#fff}
    .copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:20px;font-size:12px}
    @media(max-width:1024px){.hero-grid{gap:30px}.feature-grid,.price-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){
      .container{width:min(100% - 28px,640px)}
      .nav-shell{min-height:68px}.nav-panel{padding:5px}.nav-links a{padding:8px 9px;font-size:13px}.nav-cta{display:none}
      .hero{padding:58px 0 40px}.hero-grid,.news-layout{grid-template-columns:1fr}
      h1{font-size:42px}.section{padding:62px 0}.steps{grid-template-columns:repeat(2,1fr)}
      .cta-inner{display:block}.cta .button{margin-top:22px}
    }
    @media(max-width:520px){
      .brand{font-size:15px}.brand-mark{width:34px;height:34px}.nav-links{width:100%;justify-content:space-between}
      .feature-grid,.price-grid,.faq,.steps{grid-template-columns:1fr}
      h1{font-size:35px}.hero-copy{font-size:16px}.hero-card{min-height:auto;padding:22px}
      .news-item{display:block}.news-item span{display:block;margin-top:5px}.footer-links{flex-wrap:wrap}
    }

/* roulang page: category1 */
:root{
 --navy:#102a43;--blue:#1769aa;--blue-2:#2f80c9;--sky:#eaf4ff;
 --ink:#18324b;--muted:#6d8194;--line:#dce8f2;--paper:#fff;--soft:#f5f9fc;
 --gold:#d49a3a;--green:#198456;--radius:22px;
 --shadow:0 18px 50px rgba(16,42,67,.10);--shadow-sm:0 8px 24px rgba(16,42,67,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--soft);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;font-size:16px}
a{color:var(--blue);text-decoration:none;transition:.25s ease}
a:hover{color:var(--navy)}
button,input{font:inherit}
button:focus,a:focus,input:focus{outline:3px solid rgba(47,128,201,.28);outline-offset:3px}
h1,h2,h3{color:var(--navy);line-height:1.25;margin:0;font-weight:800}
h1{font-size:clamp(2.2rem,5vw,4.3rem);letter-spacing:-.04em}
h2{font-size:clamp(1.75rem,3vw,2.6rem)}
h3{font-size:1.1rem}
p{margin:0}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}
.nav-shell{min-height:78px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;color:var(--navy);font-size:18px;font-weight:800;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:#fff;background:var(--navy);box-shadow:0 7px 16px rgba(16,42,67,.2)}
.nav-panel{flex:1;display:flex;align-items:center;justify-content:space-between;padding:8px 10px 8px 16px;border:1px solid var(--line);border-radius:16px;background:#fbfdff;box-shadow:var(--shadow-sm)}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{padding:9px 15px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:700}
.nav-links a:hover,.nav-links a.active{background:var(--sky);color:var(--blue)}
.nav-cta,.button.primary{background:var(--blue);color:#fff!important;border-radius:11px;padding:11px 18px;font-weight:800;box-shadow:0 8px 18px rgba(23,105,170,.2)}
.nav-cta:hover,.button.primary:hover{background:var(--navy);transform:translateY(-2px)}
.hero{padding:78px 0 66px;background:linear-gradient(135deg,#f8fcff 0%,#eaf4ff 100%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:58px;align-items:center}
.eyebrow,.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid #c9e0f3;border-radius:999px;color:var(--blue);background:#fff;font-size:12px;font-weight:800;letter-spacing:.04em}
.hero h1{margin:20px 0 18px;max-width:720px}
.hero-copy{font-size:18px;color:var(--muted);max-width:680px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border:0;border-radius:12px;padding:12px 20px;font-weight:800;transition:.25s ease}
.button.secondary{background:#fff;color:var(--blue);border:1px solid #c9e0f3}
.button.secondary:hover{border-color:var(--blue);transform:translateY(-2px)}
.trust-row{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.trust-row i{color:var(--gold);margin-right:6px}
.hero-card{position:relative;background:var(--navy);border-radius:28px;padding:30px;color:#fff;min-height:350px;overflow:hidden;box-shadow:var(--shadow)}
.hero-card:after{content:"";position:absolute;width:230px;height:230px;border-radius:50%;right:-70px;top:-70px;background:rgba(82,171,235,.18)}
.hero-card h2,.hero-card h3{position:relative;color:#fff;z-index:1}
.hero-card p{position:relative;color:#c7d8e7;font-size:14px;z-index:1;margin-top:10px}
.mini-list{position:relative;z-index:1;margin-top:24px;display:grid;gap:10px}
.mini-list div{display:flex;gap:10px;align-items:center;padding:11px 13px;border:1px solid rgba(255,255,255,.13);border-radius:12px;color:#eaf4ff;font-size:13px}
.mini-list i{color:#78d2a1}
.section{padding:82px 0}
.section.alt{background:#fff}
.section-head{max-width:720px;margin-bottom:34px}
.section-head p{color:var(--muted);margin-top:14px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.25s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--sky);color:var(--blue);font-size:20px;margin-bottom:18px}
.card p,.muted{color:var(--muted);font-size:14px;margin-top:10px}
.number-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.number-card{padding:24px;border-left:3px solid var(--blue);background:#fff;border-radius:14px;box-shadow:var(--shadow-sm)}
.number-card strong{display:block;color:var(--navy);font-size:1.9rem;line-height:1.2}
.number-card span{display:block;color:var(--muted);font-size:13px;margin-top:8px}
.scene-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start}
.scene-list{display:grid;gap:12px}
.scene-item{display:flex;gap:16px;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff}
.scene-item i{color:var(--blue);font-size:20px;margin-top:3px}
.scene-item p{color:var(--muted);font-size:14px;margin-top:5px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{position:relative;padding:24px;background:var(--soft);border:1px solid var(--line);border-radius:18px}
.step em{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-style:normal;font-weight:800;margin-bottom:18px}
.step p{color:var(--muted);font-size:14px;margin-top:8px}
.faq{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:22px}
.faq-item h3{font-size:17px}
.faq-item p{color:var(--muted);font-size:14px;margin-top:10px}
.cta{padding:62px 0;background:var(--blue);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta h2{color:#fff}.cta p{color:#d9efff;max-width:650px;margin-top:12px}.cta .button{background:#fff;color:var(--blue)}
.site-footer{padding:42px 0 26px;background:var(--navy);color:#a9c0d3}
.footer-grid{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.footer-brand{color:#fff;font-weight:800;font-size:18px}
.footer-note{max-width:560px;font-size:13px}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;font-size:13px}
.footer-links a{color:#c9dbea}.footer-links a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:20px;font-size:12px}
@media(max-width:1024px){.hero-grid{gap:30px}.feature-grid{grid-template-columns:repeat(2,1fr)}.number-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 28px,640px)}.nav-shell{min-height:68px;gap:10px}.nav-panel{padding:5px}.nav-links a{padding:8px 9px;font-size:13px}.nav-cta{display:none}.brand{font-size:15px}.brand-mark{width:34px;height:34px}.nav-links{width:100%;justify-content:space-between}.hero{padding:58px 0 40px}.hero-grid,.scene-layout{grid-template-columns:1fr}.section{padding:62px 0}.process{grid-template-columns:repeat(2,1fr)}.cta-inner{display:block}.cta .button{margin-top:22px}}
@media(max-width:520px){h1{font-size:2.25rem}.hero-copy{font-size:16px}.feature-grid,.number-grid,.process,.faq{grid-template-columns:1fr}.hero-actions .button{width:100%}.footer-links{display:grid;gap:9px}.hero-card{padding:24px}}