/* roulang page: index */
:root{
            --bg:#0b0d10;--panel:#13171c;--panel2:#191f26;--ink:#f3f5f7;--muted:#9ba5b1;
            --line:#29313a;--accent:#ff5c70;--accent2:#ffb454;--soft:#222a33;--radius:18px;
            --shadow:0 18px 48px rgba(0,0,0,.24);--max:1180px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{display:block;width:100%;object-fit:cover}
        button{font:inherit;border:0;cursor:pointer}
        .container{width:min(var(--max),calc(100% - 40px));margin:auto}
        .topbar{position:sticky;top:0;z-index:20;background:rgba(11,13,16,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08)}
        .nav{height:76px;display:flex;align-items:center;gap:32px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--accent);color:#160b0e;display:grid;place-items:center;font-size:17px;font-weight:900}
        .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:1.5px;line-height:1}
        .navlinks{display:flex;gap:25px;margin-left:auto;color:var(--muted);font-size:14px}
        .navlinks a{transition:.25s}
        .navlinks a:hover,.navlinks a.active{color:#fff}
        .nav-cta{padding:10px 16px;border:1px solid var(--line);border-radius:10px;font-size:13px;color:#fff;transition:.25s}
        .nav-cta:hover{border-color:var(--accent);color:var(--accent)}
        .menu{display:none;background:none;color:#fff;font-size:24px}
        .hero{padding:72px 0 54px;border-bottom:1px solid var(--line);background:
            radial-gradient(circle at 85% 12%,rgba(255,92,112,.16),transparent 30%),
            radial-gradient(circle at 15% 35%,rgba(255,180,84,.08),transparent 26%)}
        .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
        .eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;margin-bottom:15px}
        h1{font-size:clamp(38px,5vw,70px);line-height:1.12;letter-spacing:-2.6px;max-width:760px}
        h1 em{font-style:normal;color:var(--accent)}
        .hero-copy{font-size:17px;color:#c5ccd4;max-width:680px;margin:23px 0 28px}
        .actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:11px;font-weight:700;font-size:14px;transition:.25s}
        .btn-primary{background:var(--accent);color:#170b0e;box-shadow:0 8px 24px rgba(255,92,112,.2)}
        .btn-primary:hover{transform:translateY(-2px);background:#ff7182}
        .btn-ghost{border:1px solid var(--line);color:#e8edf1}
        .btn-ghost:hover{border-color:var(--accent2);color:var(--accent2)}
        .trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:27px;color:var(--muted);font-size:12px}
        .trust span:before{content:"●";color:var(--accent);font-size:9px;margin-right:7px}
        .hero-art{position:relative;min-height:350px;border-radius:24px;overflow:hidden;background:#242a31;box-shadow:var(--shadow)}
        .hero-art img{height:420px;filter:saturate(.8)}
        .hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,12,15,.8),transparent 55%)}
        .art-caption{position:absolute;z-index:1;bottom:22px;left:24px;right:24px;display:flex;justify-content:space-between;align-items:end}
        .art-caption strong{font-size:20px}.art-caption span{font-size:12px;color:#dce1e6}
        section{padding:74px 0;border-bottom:1px solid var(--line)}
        .section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:28px}
        .section-head h2{font-size:30px;line-height:1.2;letter-spacing:-1px}
        .section-head p{max-width:610px;color:var(--muted);font-size:14px}
        .kicker{color:var(--accent2);font-size:12px;font-weight:800;letter-spacing:1.5px;margin-bottom:8px}
        .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .metric{padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
        .metric b{font-size:30px;color:#fff;display:block;line-height:1.2}.metric span{color:var(--muted);font-size:13px}
        .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .matrix-card{padding:24px;background:linear-gradient(145deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);min-height:160px;transition:.25s}
        .matrix-card:hover,.photo:hover{transform:translateY(-4px);border-color:#596572}
        .matrix-card i{font-style:normal;color:var(--accent);font-size:22px}.matrix-card h3{font-size:18px;margin:14px 0 7px}.matrix-card p{font-size:13px;color:var(--muted)}
        .photo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .photo{background:var(--panel);border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:.25s}
        .photo img{height:220px}.photo-body{padding:15px}.photo-body h3{font-size:15px;margin-bottom:6px}.photo-body p{font-size:12px;color:var(--muted)}
        .tags{display:flex;gap:9px;flex-wrap:wrap}.tag{padding:9px 14px;border:1px solid var(--line);border-radius:50px;color:#d7dde2;font-size:13px;transition:.2s}.tag:hover{border-color:var(--accent);color:var(--accent)}
        .comparison{display:grid;grid-template-columns:1fr 1fr;gap:18px}
        .compare-card{padding:27px;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel)}
        .compare-card.highlight{border-color:rgba(255,92,112,.55);background:linear-gradient(145deg,#24181d,var(--panel))}
        .compare-card h3{font-size:20px;margin-bottom:18px}.compare-card ul{list-style:none}.compare-card li{padding:11px 0;border-top:1px solid var(--line);font-size:14px;color:#c8d0d7}.compare-card li:before{content:"✓";color:var(--accent);margin-right:10px}
        .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.step{position:relative;padding:0 24px 0 0}.step:not(:last-child):after{content:"";position:absolute;top:14px;right:20px;width:calc(100% - 50px);height:1px;background:var(--line)}.step-num{width:29px;height:29px;border-radius:50%;background:var(--accent);color:#18090d;display:grid;place-items:center;font-weight:800;margin-bottom:18px;position:relative;z-index:1}.step h3{font-size:16px}.step p{font-size:13px;color:var(--muted);margin-top:6px}
        .ranking{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px}.rank{display:grid;grid-template-columns:38px 1fr auto;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);gap:13px}.rank-no{font-size:22px;color:var(--accent);font-weight:800}.rank h3{font-size:14px}.rank small{color:var(--muted);font-size:12px}.score{color:var(--accent2);font-weight:700}
        .news{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.news-card{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center;padding:12px;border:1px solid var(--line);background:var(--panel);border-radius:14px}.news-card img{height:84px;border-radius:9px}.news-card h3{font-size:14px;line-height:1.45}.news-card time{color:var(--muted);font-size:11px}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq{padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.faq h3{font-size:15px;margin-bottom:8px}.faq p{font-size:13px;color:var(--muted)}
        .cta{padding:48px;border-radius:24px;background:linear-gradient(110deg,#28171d,#171b20);border:1px solid rgba(255,92,112,.35);display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:30px}.cta p{color:var(--muted);font-size:14px;margin-top:7px}
        footer{padding:45px 0 25px;background:#080a0c}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:35px}.footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:13px}.footer-col h3{font-size:13px;margin-bottom:15px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--accent)}.copyright{border-top:1px solid var(--line);padding-top:20px;color:#707984;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        :focus-visible{outline:2px solid var(--accent2);outline-offset:3px}
        @media(max-width:1024px){.hero-grid{gap:30px}.photo-grid{grid-template-columns:repeat(3,1fr)}.matrix{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 28px,var(--max))}.nav{height:66px}.navlinks{display:none;position:absolute;top:66px;left:0;right:0;background:#0e1115;border-bottom:1px solid var(--line);padding:18px 20px;flex-direction:column;gap:14px}.navlinks.open{display:flex}.menu{display:block;margin-left:auto}.nav-cta{display:none}.hero{padding:50px 0 38px}.hero-grid{grid-template-columns:1fr}.hero-art{min-height:260px}.hero-art img{height:310px}.metrics{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr);gap:28px}.step:not(:last-child):after{display:none}.ranking,.comparison,.faq-grid{grid-template-columns:1fr}.news{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
        @media(max-width:520px){section{padding:52px 0}.section-head{display:block}.section-head p{margin-top:12px}.photo-grid{grid-template-columns:1fr 1fr;gap:10px}.photo img{height:170px}.photo-body{padding:11px}.photo-body h3{font-size:13px}.metrics,.matrix,.news,.timeline{grid-template-columns:1fr 1fr}.hero-copy{font-size:15px}.cta{padding:28px;display:block}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: category1 */
:root{
 --bg:#0b0d10;--panel:#13171c;--panel2:#191f26;--ink:#f3f5f7;--muted:#9ba5b1;
 --line:#29313a;--accent:#ff5c70;--accent2:#ffb454;--soft:#222a33;--radius:18px;
 --shadow:0 18px 48px rgba(0,0,0,.24);--max:1180px
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.topbar{position:sticky;top:0;z-index:20;background:rgba(11,13,16,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{height:76px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--accent);color:#160b0e;display:grid;place-items:center;font-size:17px;font-weight:900}
.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:1.5px;line-height:1}
.navlinks{display:flex;gap:25px;margin-left:auto;color:var(--muted);font-size:14px}
.navlinks a{transition:.25s}
.navlinks a:hover,.navlinks a.active{color:#fff}
.navlinks a.active{position:relative}
.navlinks a.active:after{content:"";position:absolute;height:2px;background:var(--accent);left:0;right:0;bottom:-9px}
.nav-cta{padding:10px 16px;border:1px solid var(--line);border-radius:10px;font-size:13px;color:#fff;transition:.25s}
.nav-cta:hover{border-color:var(--accent);color:var(--accent)}
.menu{display:none;background:none;color:#fff;font-size:24px}
.hero{padding:72px 0 62px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 86% 10%,rgba(255,92,112,.16),transparent 30%),radial-gradient(circle at 12% 45%,rgba(255,180,84,.08),transparent 26%)}
.hero-inner{max-width:850px;margin:auto;text-align:center}
.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:2px;margin-bottom:15px}
h1{font-size:clamp(34px,5vw,62px);line-height:1.12;letter-spacing:-2px}
h1 em{font-style:normal;color:var(--accent)}
.hero-copy{font-size:17px;color:#c5ccd4;max-width:720px;margin:22px auto 28px}
.searchbar{display:flex;max-width:690px;margin:0 auto 23px;padding:7px;background:#101419;border:1px solid var(--line);border-radius:14px}
.searchbar input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:#fff;padding:11px 15px}
.searchbar input::placeholder{color:#707984}
.searchbar button{background:var(--accent);color:#170b0e;font-weight:800;padding:0 21px;border-radius:9px;transition:.25s}
.searchbar button:hover{background:#ff7182}
.quick-tags{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.tag{padding:8px 14px;border:1px solid var(--line);border-radius:50px;color:#d7dde2;font-size:13px;transition:.2s}
.tag:hover,.tag.active{border-color:var(--accent);color:var(--accent)}
section{padding:70px 0;border-bottom:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.2;letter-spacing:-1px}
.section-head p{max-width:610px;color:var(--muted);font-size:14px}
.section-kicker{color:var(--accent2);font-size:12px;letter-spacing:1.6px;font-weight:800;margin-bottom:8px}
.feature-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.feature-main{position:relative;min-height:385px;overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--panel)}
.feature-main img{height:385px;filter:saturate(.82)}
.feature-main:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(0deg,rgba(8,10,12,.94),transparent)}
.feature-copy{position:absolute;z-index:1;bottom:25px;left:27px;right:27px}
.feature-copy h3{font-size:27px;margin:7px 0}
.feature-copy p{color:#c3cbd3;font-size:13px;max-width:530px}
.badge{display:inline-flex;padding:5px 9px;border-radius:6px;background:rgba(255,92,112,.16);color:#ff9aa6;font-size:11px;font-weight:800}
.side-list{display:grid;gap:14px}
.side-item{display:grid;grid-template-columns:115px 1fr;gap:14px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:11px;transition:.25s}
.side-item:hover,.topic-card:hover,.photo:hover{transform:translateY(-4px);border-color:#596572}
.side-item img{height:105px;border-radius:9px}
.side-item h3{font-size:15px;line-height:1.4;margin:6px 0}
.side-item p{font-size:12px;color:var(--muted)}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.topic-card{padding:24px;background:linear-gradient(145deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);min-height:185px;transition:.25s}
.topic-card strong{color:var(--accent);font-size:24px}
.topic-card h3{font-size:19px;margin:12px 0 7px}
.topic-card p{font-size:13px;color:var(--muted)}
.photo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.photo{overflow:hidden;border:1px solid var(--line);background:var(--panel);border-radius:15px;transition:.25s}
.photo img{height:210px}
.photo-body{padding:14px}
.photo-body h3{font-size:15px;margin-bottom:5px}
.photo-body p{font-size:12px;color:var(--muted)}
.data-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.data-box{padding:24px;border-right:1px solid var(--line)}
.data-box:last-child{border:0}
.data-box b{font-size:30px;color:var(--accent2);display:block;line-height:1.1}
.data-box span{font-size:13px;color:var(--muted)}
.rank-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.rank-list{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 22px}
.rank-item{display:grid;grid-template-columns:38px 1fr auto auto;align-items:center;gap:13px;padding:15px 0;border-bottom:1px solid var(--line)}
.rank-item:last-child{border-bottom:0}
.rank-no{font-size:20px;font-weight:900;color:var(--accent)}
.rank-item h3{font-size:14px}
.rank-item small{display:block;color:var(--muted);font-size:11px}
.score{color:var(--accent2);font-size:13px;font-weight:800}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.news-card{display:grid;grid-template-columns:118px 1fr;gap:15px;align-items:center;padding:12px;border:1px solid var(--line);background:var(--panel);border-radius:14px;transition:.25s}
.news-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.news-card img{height:88px;border-radius:9px}
.news-card h3{font-size:14px;line-height:1.45}
.news-card time{color:var(--muted);font-size:11px}
.assurance{display:grid;grid-template-columns:1fr 1.2fr;gap:35px;align-items:center}
.assurance h2{font-size:31px;line-height:1.25}
.assurance p{color:var(--muted);font-size:14px;margin-top:14px}
.assurance-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.assurance-item{padding:19px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.assurance-item b{display:block;color:#fff;font-size:15px;margin-bottom:5px}
.assurance-item span{font-size:12px;color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq{padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.faq h3{font-size:15px;margin-bottom:8px}
.faq p{font-size:13px;color:var(--muted)}
.cta{padding:45px;border-radius:24px;background:linear-gradient(110deg,#28171d,#171b20);border:1px solid rgba(255,92,112,.35);display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{font-size:29px}
.cta p{color:var(--muted);font-size:14px;margin-top:7px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:11px;font-weight:700;font-size:14px;transition:.25s}
.btn-primary{background:var(--accent);color:#170b0e;box-shadow:0 8px 24px rgba(255,92,112,.2)}
.btn-primary:hover{transform:translateY(-2px);background:#ff7182}
.btn-ghost{border:1px solid var(--line);color:#e8edf1}
.btn-ghost:hover{border-color:var(--accent2);color:var(--accent2)}
footer{padding:45px 0 25px;background:#080a0c}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:35px}
.footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:13px}
.footer-col h3{font-size:13px;margin-bottom:15px}
.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}
.footer-col a:hover{color:var(--accent)}
.copyright{border-top:1px solid var(--line);padding-top:20px;color:#707984;font-size:12px;display:flex;justify-content:space-between;gap:15px}
:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}
@media(max-width:1024px){
 .navlinks{gap:15px}.photo-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 28px,var(--max))}
 .nav{height:66px}.navlinks{display:none;position:absolute;top:66px;left:0;right:0;background:#0e1115;border-bottom:1px solid var(--line);padding:18px 20px;flex-direction:column;gap:14px}
 .navlinks.open{display:flex}.navlinks a.active:after{display:none}.menu{display:block;margin-left:auto}.nav-cta{display:none}
 .hero{padding:50px 0 38px}.hero-copy{font-size:15px}.searchbar{margin-bottom:19px}
 section{padding:52px 0}.section-head{display:block}.section-head p{margin-top:12px}
 .feature-layout,.assurance,.rank-layout{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr}
 .photo-grid{grid-template-columns:1fr 1fr;gap:10px}.photo img{height:170px}
 .data-strip{grid-template-columns:1fr 1fr}.data-box:nth-child(2){border-right:0}.data-box:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .news-list,.faq-grid{grid-template-columns:1fr}.cta{display:block;padding:30px}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}
 .copyright{display:block}.copyright span{display:block;margin-top:7px}
}
@media(max-width:520px){
 h1{font-size:35px}.hero-inner{text-align:left}.quick-tags{justify-content:flex-start}.searchbar button{padding:0 13px}
 .topic-grid,.assurance-list{grid-template-columns:1fr}.side-item{grid-template-columns:95px 1fr}.side-item img{height:90px}
 .photo-grid{grid-template-columns:1fr 1fr}.photo img{height:145px}.photo-body h3{font-size:13px}
 .rank-item{grid-template-columns:29px 1fr auto}.rank-item .badge{display:none}.footer-grid{grid-template-columns:1fr}
}