/* roulang page: index */
:root{
      --navy:#101e38;
      --navy-2:#172b4d;
      --blue:#2563c7;
      --blue-dark:#174a9b;
      --cyan:#38c6d5;
      --ink:#17243a;
      --muted:#66758d;
      --paper:#f5f8fc;
      --white:#fff;
      --line:#dce6f2;
      --soft:#eaf3ff;
      --violet:#7467d9;
      --radius:20px;
      --shadow:0 18px 50px rgba(29,68,117,.10);
      --shadow-sm:0 8px 24px rgba(29,68,117,.08);
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(56,198,213,.55);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(16,30,56,.97);border-bottom:1px solid rgba(56,198,213,.3);box-shadow:0 8px 24px rgba(9,22,43,.18)}
    .site-header:after{content:"";height:2px;position:absolute;bottom:-1px;left:8%;right:8%;background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent);opacity:.8}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:.2px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border:1px solid var(--cyan);border-radius:50%;position:relative;box-shadow:0 0 18px rgba(56,198,213,.35)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--cyan);border-radius:50%;inset:7px 2px;transform:rotate(45deg)}
    .brand-mark:after{inset:2px 7px;transform:rotate(-45deg);border-color:var(--violet)}
    .brand-text{font-size:17px}
    .nav-list{display:flex;align-items:center;gap:8px;margin:0;list-style:none}
    .nav-list a{display:block;color:#bdcce0;padding:10px 14px;border-radius:9px;font-size:14px}
    .nav-list a:hover,.nav-list a.active{color:#fff;background:rgba(56,198,213,.12);box-shadow:inset 0 -2px var(--cyan),0 0 16px rgba(56,198,213,.12)}
    .menu-toggle{display:none;border:1px solid #4c6385;background:transparent;color:#fff;border-radius:8px;padding:7px 11px;cursor:pointer}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:12px 20px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 8px 18px rgba(37,99,199,.2)}
    .nav-cta{padding:9px 15px;font-size:14px;background:var(--cyan);color:#0e2943}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);background:var(--blue-dark);color:#fff;box-shadow:0 13px 25px rgba(37,99,199,.26)}
    .button:active,.nav-cta:active{transform:translateY(0)}
    .button.secondary{background:#fff;color:var(--blue);border:1px solid #b8cbe5;box-shadow:none}
    .button.secondary:hover{background:var(--soft);color:var(--blue-dark)}
    .button.small{padding:9px 14px;font-size:13px}
    .hero{padding:84px 0 70px;background:linear-gradient(135deg,#edf6ff 0%,#fff 58%,#f0f0ff 100%);position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:560px;height:560px;right:-160px;top:-260px;border:1px solid rgba(37,99,199,.12);border-radius:50%;box-shadow:0 0 0 35px rgba(37,99,199,.03),0 0 0 75px rgba(116,103,217,.03)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--cyan)}
    h1,h2,h3{line-height:1.2;margin:0 0 18px;color:var(--ink);letter-spacing:-.5px}
    h1{font-size:clamp(36px,5vw,62px);max-width:650px}
    h2{font-size:clamp(28px,3.2vw,40px)}
    h3{font-size:20px}
    .hero p{font-size:18px;color:var(--muted);max-width:640px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:13px}
    .hero-note strong{display:block;color:var(--ink);font-size:20px;line-height:1.2}
    .hero-art{min-height:350px;position:relative;display:flex;align-items:center;justify-content:center}
    .orbit{width:300px;height:300px;border:1px solid rgba(37,99,199,.24);border-radius:50%;position:absolute;transform:rotate(-22deg);box-shadow:0 0 0 26px rgba(37,99,199,.035),0 0 0 52px rgba(116,103,217,.03)}
    .orbit:before{content:"";position:absolute;width:12px;height:12px;background:var(--cyan);border-radius:50%;top:24px;right:31px;box-shadow:0 0 18px var(--cyan)}
    .index-board{position:relative;width:min(390px,100%);background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:17px}
    .board-top b{font-size:18px}.signal{font-size:12px;color:#287e8e}
    .signal i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:5px}
    .board-row{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-bottom:1px solid #edf2f8}
    .board-row:last-child{border:0}.board-row span{color:var(--muted);font-size:14px}.board-row strong{color:var(--blue);font-size:15px}
    .section{padding:92px 0}.section-head{max-width:700px;margin-bottom:38px}.section-head p{color:var(--muted);margin:0;font-size:16px}
    .metrics{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:15px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
    .metric:first-child{background:var(--navy);color:#fff}.metric:first-child small,.metric:first-child span{color:#b8c9df}.metric:after{content:"";position:absolute;width:80px;height:80px;border:1px solid rgba(56,198,213,.18);border-radius:50%;right:-28px;bottom:-35px}
    .metric strong{display:block;font-size:34px;line-height:1.1;color:var(--blue);margin:9px 0}.metric:first-child strong{color:var(--cyan)}
    .metric span,.metric small{display:block;color:var(--muted);font-size:13px}.metric span{font-weight:700;color:var(--ink)}
    .matrix{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}
    .matrix-side{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .feature-card,.mini-card,.compare-card,.content-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .feature-card{padding:34px;min-height:300px;background:linear-gradient(145deg,#fff,#edf6ff)}
    .feature-card .symbol{width:48px;height:48px;border-radius:14px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:25px}
    .feature-card p,.mini-card p,.content-card p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .mini-card{padding:24px}.mini-card h3{font-size:17px}.mini-card .number{color:var(--violet);font-size:13px;font-weight:800}
    .tags{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0}.tag{border:1px solid #cbdced;color:var(--blue);background:#f5f9ff;border-radius:50px;padding:4px 10px;font-size:12px}
    .compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch}
    .compare-card{padding:31px}.compare-card.highlight{border-color:#9ddde4;background:#eefcff}
    .compare-card h3{display:flex;gap:11px;align-items:center}.compare-card h3 b{width:30px;height:30px;display:grid;place-items:center;border-radius:8px;background:#e5edf8;color:var(--blue);font-size:13px}
    .compare-card.highlight h3 b{background:var(--cyan);color:#12324a}
    .compare-list{list-style:none;padding:0;margin:0}.compare-list li{padding:13px 0;border-bottom:1px dashed #d5e0ec;color:var(--muted);font-size:14px}.compare-list li:last-child{border:0}.compare-list li:before{content:"✓";color:var(--blue);font-weight:800;margin-right:9px}
    .content-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .content-card{padding:27px}.content-card .meta{font-size:12px;color:var(--violet);font-weight:800;margin-bottom:12px}.content-card h3{margin-bottom:9px}
    .rank-list{list-style:none;padding:0;margin:0}.rank-list li{display:flex;align-items:center;gap:15px;padding:14px 0;border-bottom:1px solid #e7eef6}.rank-list li:last-child{border-bottom:0}.rank{width:28px;height:28px;display:grid;place-items:center;border-radius:8px;background:#edf4ff;color:var(--blue);font-weight:800;font-size:13px}.rank-list span{flex:1;color:var(--ink);font-size:14px}.rank-list em{font-style:normal;color:var(--muted);font-size:12px}
    .guide{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-item{padding:23px 25px;border-left:3px solid var(--cyan);background:#fff;border-radius:0 15px 15px 0;box-shadow:var(--shadow-sm)}.guide-item b{color:var(--blue);font-size:13px}.guide-item h3{font-size:18px;margin:8px 0}.guide-item p{color:var(--muted);font-size:14px;margin:0}
    .faq-section{background:#edf5ff}.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line);border-radius:12px!important;margin-bottom:10px;background:#fff;overflow:hidden}.accordion-title{color:var(--ink);font-weight:700;border:0;padding:20px 23px}.accordion-title:hover{background:#f5faff;color:var(--blue)}.accordion-content{border:0;color:var(--muted);font-size:14px;padding:0 23px 20px}
    .cta-section{padding:90px 0;background:var(--navy);color:#fff;position:relative;overflow:hidden}.cta-section:before{content:"";position:absolute;right:-100px;top:-170px;width:430px;height:430px;border:1px solid rgba(56,198,213,.25);border-radius:50%;box-shadow:0 0 0 35px rgba(56,198,213,.04),0 0 0 70px rgba(116,103,217,.04)}.cta-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;position:relative}.cta-section h2{color:#fff}.cta-section p{color:#bdcce0}.form-card{background:#fff;color:var(--ink);padding:30px;border-radius:18px;box-shadow:var(--shadow)}label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}input,select,textarea{width:100%;border:1px solid #cbd9e9;border-radius:9px;padding:11px 13px;background:#fbfdff;color:var(--ink);margin-bottom:15px}textarea{min-height:86px;resize:vertical}.form-feedback{font-size:13px;color:#287e8e;margin-top:13px;min-height:23px}
    .site-footer{background:#0b172b;color:#aebfd5;padding:52px 0 26px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.site-footer .brand{margin-bottom:15px}.site-footer p{font-size:13px;max-width:420px}.site-footer h3{color:#fff;font-size:15px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:7px 0;font-size:13px}.footer-links a:hover{color:var(--cyan)}.copyright{border-top:1px solid #243653;margin-top:34px;padding-top:20px;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:1024px){.hero-grid{gap:35px}.metrics{grid-template-columns:1fr 1fr}.metric:first-child{grid-column:span 2}.matrix{grid-template-columns:1fr}.cta-grid{gap:35px}}
    @media(max-width:768px){.container{width:min(100% - 30px,600px)}.topbar{min-height:68px}.menu-toggle{display:block}.nav-area{display:none;position:absolute;left:0;right:0;top:68px;background:var(--navy);padding:12px 15px 18px;border-top:1px solid #2a4162}.nav-area.open{display:block}.nav-list{display:block}.nav-list a{padding:13px 10px}.nav-cta{display:flex;margin-top:8px;text-align:center}.hero{padding:58px 0 52px}.hero-grid,.content-strip,.cta-grid{grid-template-columns:1fr}.hero-art{min-height:270px}.section{padding:64px 0}.matrix-side{grid-template-columns:1fr}.guide{grid-template-columns:1fr}.compare-wrap{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){h1{font-size:36px}.hero p{font-size:16px}.hero-actions .button{width:100%}.metrics{grid-template-columns:1fr}.metric:first-child{grid-column:auto}.orbit{width:235px;height:235px}.index-board{padding:20px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: category1 */
:root{
--navy:#101e38;--navy-2:#172b4d;--blue:#2563c7;--blue-dark:#174a9b;--cyan:#38c6d5;
--ink:#17243a;--muted:#66758d;--paper:#f5f8fc;--white:#fff;--line:#dce6f2;
--soft:#eaf3ff;--violet:#7467d9;--radius:20px;--shadow:0 18px 50px rgba(29,68,117,.10);
--shadow-sm:0 8px 24px rgba(29,68,117,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none;transition:.25s ease}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(56,198,213,.6);outline-offset:3px}
.container{width:min(1200px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(16,30,56,.98);border-bottom:1px solid rgba(56,198,213,.3);box-shadow:0 8px 24px rgba(9,22,43,.18)}
.site-header:after{content:"";height:2px;position:absolute;bottom:-1px;left:8%;right:8%;background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent);opacity:.8}
.topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border:1px solid var(--cyan);border-radius:50%;position:relative;box-shadow:0 0 18px rgba(56,198,213,.35)}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--cyan);border-radius:50%;inset:7px 2px;transform:rotate(45deg)}
.brand-mark:after{inset:2px 7px;transform:rotate(-45deg);border-color:var(--violet)}
.brand-text{font-size:17px}
.nav-list{display:flex;align-items:center;gap:8px;margin:0;list-style:none}
.nav-list a{display:block;color:#bdcce0;padding:10px 14px;border-radius:9px;font-size:14px}
.nav-list a:hover,.nav-list a.active{color:#fff;background:rgba(56,198,213,.12);box-shadow:inset 0 -2px var(--cyan),0 0 16px rgba(56,198,213,.12)}
.nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:12px 20px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 8px 18px rgba(37,99,199,.2)}
.nav-cta{padding:9px 15px;font-size:14px;background:var(--cyan);color:#0e2943}
.nav-cta:hover,.button:hover{transform:translateY(-2px);background:var(--blue-dark);color:#fff;box-shadow:0 13px 25px rgba(37,99,199,.26)}
.button:active,.nav-cta:active{transform:translateY(0)}
.button.secondary{background:#fff;color:var(--blue);border:1px solid #b8cbe5;box-shadow:none}
.button.secondary:hover{background:var(--soft);color:var(--blue-dark)}
.button.small{padding:9px 14px;font-size:13px}
.menu-toggle{display:none;border:1px solid #4c6385;background:transparent;color:#fff;border-radius:8px;padding:7px 11px;cursor:pointer}
.page-hero{padding:78px 0 66px;background:linear-gradient(135deg,#edf6ff 0%,#fff 58%,#f0f0ff 100%);position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:560px;height:560px;right:-180px;top:-290px;border:1px solid rgba(37,99,199,.13);border-radius:50%;box-shadow:0 0 0 35px rgba(37,99,199,.03),0 0 0 75px rgba(116,103,217,.03)}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:24px;position:relative}
.breadcrumbs a{color:var(--blue)}
.hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center;position:relative}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:1.5px}
.eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--cyan)}
h1,h2,h3{line-height:1.25;margin-top:0}
h1{font-size:clamp(34px,5vw,58px);letter-spacing:-1px;margin:17px 0 20px}
h2{font-size:clamp(28px,3.5vw,40px);margin-bottom:13px}
h3{font-size:19px;margin-bottom:10px}
.hero-copy p{font-size:18px;color:var(--muted);max-width:680px;margin:0 0 27px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{min-height:310px;display:grid;place-items:center;position:relative}
.index-orbit{width:270px;height:270px;border:1px solid rgba(37,99,199,.32);border-radius:50%;position:relative;box-shadow:0 0 0 22px rgba(37,99,199,.04),0 0 0 46px rgba(116,103,217,.035)}
.index-orbit:before,.index-orbit:after{content:"";position:absolute;inset:35px;border:1px dashed rgba(56,198,213,.7);border-radius:50%;transform:rotate(35deg)}
.index-orbit:after{inset:70px;border-style:solid;border-color:rgba(116,103,217,.5);transform:rotate(-35deg)}
.orbit-card{position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 17px;box-shadow:var(--shadow-sm);font-size:13px;color:var(--blue);font-weight:700}
.orbit-card.one{top:20px;right:-34px}.orbit-card.two{bottom:25px;left:-48px}.orbit-card.three{top:110px;left:-68px}
.section{padding:88px 0}
.section-head{max-width:730px;margin-bottom:34px}
.section-head p{color:var(--muted);margin:0}
.filter-shell{display:grid;grid-template-columns:250px 1fr;gap:30px;align-items:start}
.filter-panel,.result-card,.faq-box,.notice-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.filter-panel{padding:24px;position:sticky;top:105px}
.filter-panel h3{font-size:17px;padding-bottom:15px;border-bottom:1px solid var(--line)}
.filter-group{margin:22px 0}
.filter-group strong{display:block;font-size:13px;margin-bottom:10px;color:var(--ink)}
.filter-option{display:flex;align-items:center;gap:8px;margin:8px 0;color:var(--muted);font-size:14px;cursor:pointer}
.filter-option input{accent-color:var(--blue)}
.tag-cloud{display:flex;gap:8px;flex-wrap:wrap}
.tag{border:1px solid #cbdced;color:var(--blue);background:#f5f9ff;border-radius:50px;padding:5px 11px;font-size:12px}
.tag:hover,.tag.selected{background:var(--blue);border-color:var(--blue);color:#fff}
.result-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:18px}
.result-top p{margin:0;color:var(--muted);font-size:14px}
.result-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.result-card{overflow:hidden;display:grid;grid-template-columns:145px 1fr;min-height:190px}
.cover{min-height:190px;background:linear-gradient(145deg,#172b4d,#2563c7 60%,#38c6d5);position:relative;display:flex;align-items:flex-end;padding:14px;color:#fff}
.cover:before{content:"";position:absolute;width:110px;height:110px;border:1px solid rgba(255,255,255,.55);border-radius:50%;top:27px;left:18px;box-shadow:0 0 0 16px rgba(255,255,255,.08)}
.cover span{position:relative;font-size:12px;font-weight:700;letter-spacing:1px}
.result-body{padding:20px}
.result-body h3{font-size:17px;margin-bottom:8px}
.result-body p{font-size:13px;color:var(--muted);margin:0 0 12px;line-height:1.65}
.meta{font-size:12px;color:var(--violet);font-weight:700;margin-bottom:8px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px}
.card-foot small{color:var(--muted);font-size:12px}
.pagination-wrap{text-align:center;padding-top:34px}
.pagination{display:inline-flex;gap:8px;list-style:none;margin:0}
.pagination a{display:grid;place-items:center;min-width:38px;height:38px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--blue);font-size:13px}
.pagination a:hover,.pagination .current a{background:var(--blue);color:#fff;border-color:var(--blue)}
.notice-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.notice-card{padding:25px}
.notice-card p{color:var(--muted);font-size:14px;margin:0}
.accordion{background:transparent;margin:0}
.accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;background:#fff;margin-bottom:10px;overflow:hidden;box-shadow:none}
.accordion-title{font-weight:700;color:var(--ink);font-size:15px;padding:18px 22px;border:0!important}
.accordion-title:hover{background:var(--soft);color:var(--blue)}
.accordion-content{border:0;background:#fbfdff;color:var(--muted);font-size:14px;padding:0 22px 18px}
.cta-section{padding:68px 0;background:var(--navy);color:#fff}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-box p{color:#b8c7dc;margin:0;max-width:700px}
.site-footer{background:#0d1930;color:#b8c7dc;padding:52px 0 22px;border-top:1px solid rgba(56,198,213,.2)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:45px}
.site-footer .brand{margin-bottom:17px}
.site-footer p{font-size:13px;max-width:420px;margin:0;color:#91a4bf}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:14px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:7px 0;font-size:13px}
.footer-links a:hover{color:var(--cyan)}
.copyright{border-top:1px solid rgba(184,199,220,.16);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px;color:#8295b0}
.empty-state{display:none;padding:30px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:16px}
@media(max-width:1024px){.hero-layout{gap:35px}.filter-shell{grid-template-columns:220px 1fr}}
@media(max-width:768px){
.container{width:min(100% - 30px,620px)}
.topbar{min-height:68px}.menu-toggle{display:block}.nav-area{display:none;position:absolute;top:68px;left:0;right:0;background:var(--navy);padding:12px 15px;border-top:1px solid rgba(56,198,213,.2)}
.nav-area.open{display:block}.nav-list{display:block}.nav-list li{margin:3px 0}.nav-list a{padding:12px 14px}.nav-cta{text-align:center}
.hero-layout,.filter-shell{grid-template-columns:1fr}.page-hero{padding:55px 0 48px}.hero-visual{min-height:250px}.filter-panel{position:static}.result-grid{grid-template-columns:1fr}.notice-row,.footer-grid{grid-template-columns:1fr}.section{padding:65px 0}.cta-box{display:block}.cta-box .button{margin-top:22px}
}
@media(max-width:520px){
.brand-text{font-size:14px}.hero-copy p{font-size:16px}h1{font-size:35px}.result-card{grid-template-columns:105px 1fr}.cover{min-height:205px}.result-body{padding:15px}.card-foot{display:block}.card-foot .button{margin-top:8px}.hero-actions .button{width:100%}
}

/* roulang page: category2 */
:root{
      --navy:#101e38;
      --navy-2:#172b4d;
      --blue:#2563c7;
      --blue-dark:#174a9b;
      --cyan:#38c6d5;
      --ink:#17243a;
      --muted:#66758d;
      --paper:#f5f8fc;
      --white:#fff;
      --line:#dce6f2;
      --soft:#eaf3ff;
      --violet:#7467d9;
      --radius:20px;
      --shadow:0 18px 50px rgba(29,68,117,.10);
      --shadow-sm:0 8px 24px rgba(29,68,117,.08);
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(56,198,213,.55);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(16,30,56,.97);border-bottom:1px solid rgba(56,198,213,.3);box-shadow:0 8px 24px rgba(9,22,43,.18)}
    .site-header:after{content:"";height:2px;position:absolute;bottom:-1px;left:8%;right:8%;background:linear-gradient(90deg,transparent,var(--cyan),var(--violet),transparent);opacity:.8}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:800;letter-spacing:.2px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border:1px solid var(--cyan);border-radius:50%;position:relative;box-shadow:0 0 18px rgba(56,198,213,.35)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid var(--cyan);border-radius:50%;inset:7px 2px;transform:rotate(45deg)}
    .brand-mark:after{inset:2px 7px;transform:rotate(-45deg);border-color:var(--violet)}
    .brand-text{font-size:17px}
    .nav-list{display:flex;align-items:center;gap:8px;margin:0;list-style:none}
    .nav-list a{display:block;color:#bdcce0;padding:10px 14px;border-radius:9px;font-size:14px}
    .nav-list a:hover,.nav-list a.active{color:#fff;background:rgba(56,198,213,.12);box-shadow:inset 0 -2px var(--cyan),0 0 16px rgba(56,198,213,.12)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:12px 20px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 8px 18px rgba(37,99,199,.2)}
    .nav-cta{padding:9px 15px;font-size:14px;background:var(--cyan);color:#0e2943}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);background:var(--blue-dark);color:#fff;box-shadow:0 13px 25px rgba(37,99,199,.26)}
    .button:active,.nav-cta:active{transform:translateY(0)}
    .button.secondary{background:#fff;color:var(--blue);border:1px solid #b8cbe5;box-shadow:none}
    .button.secondary:hover{background:var(--soft);color:var(--blue-dark)}
    .button.small{padding:9px 14px;font-size:13px}
    .menu-toggle{display:none;border:1px solid #4c6385;background:transparent;color:#fff;border-radius:8px;padding:7px 11px;cursor:pointer}
    .page-hero{padding:70px 0 54px;background:linear-gradient(135deg,#edf6ff 0%,#fff 60%,#f0f0ff 100%);position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:390px;height:390px;right:-110px;top:-210px;border:1px solid rgba(37,99,199,.16);border-radius:50%;box-shadow:0 0 0 28px rgba(37,99,199,.04),0 0 0 60px rgba(116,103,217,.035)}
    .breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:25px}
    .breadcrumbs a{color:var(--blue)}
    .hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:1.5px}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:2px;background:var(--cyan)}
    h1,h2,h3{margin-top:0;line-height:1.25;letter-spacing:-.02em}
    h1{font-size:clamp(36px,5vw,58px);margin:14px 0 20px}
    h2{font-size:clamp(28px,4vw,40px);margin-bottom:14px}
    h3{font-size:19px;margin-bottom:10px}
    .hero-copy p{font-size:18px;color:var(--muted);max-width:680px;margin:0 0 25px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .signal-panel{background:var(--navy);color:#fff;border-radius:24px;padding:27px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .signal-panel:before{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(56,198,213,.35);border-radius:50%;right:-70px;top:-80px}
    .signal-label{color:#9db3d1;font-size:12px;letter-spacing:1px}
    .signal-panel strong{display:block;font-size:34px;color:var(--cyan);margin:8px 0 22px}
    .signal-line{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-top:1px solid rgba(220,230,242,.16);font-size:14px}
    .signal-line span{color:#b5c5da}.signal-line b{color:#fff}
    .section{padding:82px 0}
    .section-head{max-width:700px;margin-bottom:34px}
    .section-head p{color:var(--muted);margin:0}
    .filter-bar{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:16px;padding:18px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:36px}
    .filter-bar label{font-size:13px;color:var(--muted);font-weight:700}
    .filter-bar select,.filter-bar input{border:1px solid #c9d8e9;background:#fbfdff;border-radius:9px;padding:9px 12px;color:var(--ink);min-width:145px}
    .filter-bar input{min-width:230px}
    .feature-grid{display:grid;grid-template-columns:1.5fr .75fr .75fr;gap:18px}
    .featured-card,.update-card,.timeline-item,.faq-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .featured-card{grid-row:span 2;overflow:hidden;display:flex;flex-direction:column}
    .cover-art{min-height:210px;background:linear-gradient(135deg,#163a72,#2563c7 58%,#38c6d5);position:relative;overflow:hidden;padding:25px;color:#fff}
    .cover-art:before{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(255,255,255,.35);border-radius:50%;right:-90px;top:-110px;box-shadow:0 0 0 22px rgba(255,255,255,.06),0 0 0 46px rgba(255,255,255,.04)}
    .cover-art:after{content:"✦";position:absolute;right:42px;bottom:24px;font-size:62px;color:rgba(255,255,255,.42)}
    .cover-title{position:relative;z-index:1;max-width:340px;font-size:25px;font-weight:800;line-height:1.35}
    .featured-body{padding:26px}
    .featured-body p,.update-card p,.timeline-item p{color:var(--muted);font-size:14px}
    .tag{display:inline-block;border:1px solid #cbdced;color:var(--blue);background:#f5f9ff;border-radius:50px;padding:4px 10px;font-size:12px;margin:0 5px 7px 0}
    .update-card{padding:22px;min-height:145px}
    .update-card .date{font-size:12px;color:var(--violet);font-weight:800;margin-bottom:10px}
    .group-section{margin-top:74px}
    .group-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:34px;align-items:start}
    .index-box{background:var(--navy);color:#fff;border-radius:22px;padding:30px;position:sticky;top:106px}
    .index-box p{color:#b9c9dc;font-size:14px}
    .index-links{list-style:none;padding:0;margin:25px 0 0}
    .index-links li{border-top:1px solid rgba(255,255,255,.14)}
    .index-links a{display:flex;justify-content:space-between;padding:14px 0;color:#d9e5f3;font-size:14px}
    .index-links a:hover{color:var(--cyan);padding-left:5px}
    .timeline{position:relative;padding-left:28px}
    .timeline:before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:#bcd2e9}
    .timeline-item{position:relative;padding:22px 24px;margin-bottom:16px}
    .timeline-item:before{content:"";position:absolute;left:-29px;top:28px;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 5px #dcf8fa}
    .timeline-meta{font-size:12px;color:var(--violet);font-weight:800}
    .faq-box{padding:12px 24px}
    .accordion{margin:0;background:transparent}
    .accordion-title{font-size:16px;color:var(--ink);font-weight:700;border:0;border-bottom:1px solid #e5edf6;padding:20px 8px}
    .accordion-title:hover{background:#f7fbff;color:var(--blue)}
    .accordion-content{border:0;background:#fbfdff;color:var(--muted);font-size:14px;padding:5px 8px 20px}
    .cta-section{padding:78px 0;background:var(--navy)}
    .cta-wrap{display:grid;grid-template-columns:1fr .9fr;gap:40px;align-items:center}
    .cta-copy h2{color:#fff}.cta-copy p{color:#b9c9dc}
    .form-card{background:#fff;border-radius:20px;padding:26px;box-shadow:var(--shadow)}
    .form-card label{display:block;color:var(--ink);font-size:13px;font-weight:700;margin-bottom:6px}
    .form-card input,.form-card select,.form-card textarea{width:100%;border:1px solid #cbd9e8;border-radius:9px;padding:10px 12px;margin-bottom:15px;background:#fbfdff}
    .form-card textarea{min-height:90px;resize:vertical}
    .form-tip{font-size:12px;color:var(--muted);margin:10px 0 0}
    .site-footer{background:#0c1930;color:#c2d0e1;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr;gap:50px}
    .site-footer .brand{margin-bottom:18px}
    .site-footer p{font-size:13px;max-width:430px;color:#9eb1c9}
    .site-footer h3{font-size:15px;color:#fff;margin-bottom:15px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:8px 0;font-size:13px}
    .footer-links a{color:#a8bad0}.footer-links a:hover{color:var(--cyan)}
    .copyright{border-top:1px solid rgba(220,230,242,.14);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;color:#8ea4c0}
    @media(max-width:1024px){
      .hero-layout,.cta-wrap{grid-template-columns:1fr}
      .feature-grid{grid-template-columns:1fr 1fr}
      .featured-card{grid-row:auto;grid-column:span 2}
      .index-box{position:static}
    }
    @media(max-width:768px){
      .container{width:min(100% - 28px,600px)}
      .topbar{min-height:66px}.brand-text{font-size:14px}
      .menu-toggle{display:block}
      .nav-area{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);padding:12px 14px 20px;border-bottom:1px solid rgba(56,198,213,.3)}
      .nav-area.is-open{display:block}
      .nav-list{display:flex;flex-direction:column;align-items:stretch;gap:3px}
      .nav-list a{padding:12px 14px}
      .page-hero{padding:48px 0 42px}
      .section{padding:62px 0}
      .feature-grid,.group-layout,.footer-grid{grid-template-columns:1fr}
      .featured-card{grid-column:auto}
      .filter-bar{align-items:stretch}.filter-bar input,.filter-bar select{width:100%;min-width:0}
      .filter-bar .button{width:100%}
      .cta-section{padding:60px 0}
    }
    @media(max-width:520px){
      h1{font-size:34px}.hero-copy p{font-size:16px}
      .hero-actions .button{width:100%}
      .cover-art{min-height:180px}
      .copyright{display:block}.copyright span{display:block;margin-bottom:8px}
    }