/* roulang page: index */
:root{
            --bg:#07111f;--bg-deep:#040b15;--panel:rgba(16,31,53,.78);--panel-soft:rgba(23,43,70,.56);
            --cyan:#55d9ef;--blue:#4389ff;--violet:#9b8cff;--coral:#f39b87;
            --text:#edf6ff;--muted:#9db0c8;--line:rgba(143,188,229,.18);--line-strong:rgba(85,217,239,.48);
            --success:#65dbb2;--warn:#f0c675;--radius:20px;--small-radius:12px;
            --shadow:0 22px 70px rgba(0,0,0,.28);--glow:0 0 28px rgba(85,217,239,.16);
            --sidebar:248px;--ease:220ms ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
        body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 78% 5%,rgba(58,111,207,.15),transparent 32%),radial-gradient(circle at 14% 80%,rgba(31,156,184,.08),transparent 28%);z-index:-1}
        a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(85,217,239,.75);outline-offset:3px}
        .app-shell{min-height:100vh}
        .side-nav{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar);padding:28px 18px;background:rgba(4,13,26,.88);border-right:1px solid var(--line);z-index:20;display:flex;flex-direction:column}
        .brand{display:flex;align-items:flex-start;gap:11px;font-weight:700;line-height:1.35;font-size:19px;letter-spacing:.01em;margin:4px 10px 44px}
        .brand-mark{width:30px;height:30px;flex:0 0 30px;border:1px solid var(--cyan);border-radius:9px;position:relative;box-shadow:var(--glow)}
        .brand-mark:after{content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
        .nav-caption{font-size:11px;color:#6f89a8;letter-spacing:.16em;text-transform:uppercase;padding:0 12px;margin-bottom:10px}
        .nav-list{list-style:none;margin:0;padding:0}
        .nav-list li{margin:5px 0}
        .nav-list a{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid transparent;border-radius:12px;color:var(--muted)}
        .nav-list a:hover{color:var(--text);background:rgba(58,104,158,.18);border-color:var(--line)}
        .nav-list a.active{color:var(--text);background:linear-gradient(90deg,rgba(62,132,187,.25),rgba(62,132,187,.06));border-color:var(--line-strong);box-shadow:inset 3px 0 var(--cyan)}
        .nav-dot{width:7px;height:7px;border-radius:50%;background:#58728f}
        .active .nav-dot{background:var(--cyan);box-shadow:0 0 11px var(--cyan)}
        .side-note{margin-top:auto;padding:15px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(19,39,64,.45);font-size:12px;color:var(--muted)}
        .side-note strong{display:block;color:var(--success);font-size:13px;margin-bottom:4px}
        .main{margin-left:var(--sidebar);padding:0 5vw 60px}
        .mobile-bar{display:none}
        .container{max-width:1220px;margin:0 auto}
        .hero{padding:78px 0 48px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:17px}
        .eyebrow:before{content:"";width:27px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
        h1,h2,h3{margin:0;color:var(--text);line-height:1.25}
        h1{font-size:clamp(36px,5vw,67px);letter-spacing:-.045em;max-width:800px}
        h2{font-size:clamp(25px,3vw,38px);letter-spacing:-.025em}
        h3{font-size:19px}
        .hero-copy{max-width:710px;color:var(--muted);font-size:18px;margin:24px 0 27px}
        .actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:27px}
        .button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:11px;border:1px solid var(--cyan);background:rgba(53,177,208,.18);color:var(--text);font-weight:700;box-shadow:0 0 20px rgba(85,217,239,.11)}
        .button:hover{transform:translateY(-2px);background:rgba(85,217,239,.3);box-shadow:0 0 28px rgba(85,217,239,.25)}
        .button.secondary{border-color:var(--line-strong);background:transparent;color:#c4d5e8}
        .button.secondary:hover{background:rgba(83,145,198,.15)}
        .button.small{min-height:36px;padding:6px 13px;font-size:13px}
        .hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(330px,.85fr);gap:38px;align-items:end}
        .search-panel{padding:22px;border:1px solid var(--line-strong);border-radius:var(--radius);background:linear-gradient(145deg,rgba(26,55,87,.82),rgba(10,24,43,.74));box-shadow:var(--shadow),var(--glow)}
        .panel-label{font-size:12px;color:var(--muted);margin-bottom:10px}
        .search-row{display:flex;gap:9px}
        .search-row input{min-width:0;flex:1;background:rgba(2,12,25,.62);border:1px solid var(--line);border-radius:10px;padding:10px 13px;color:var(--text)}
        .search-row input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,239,.12)}
        .quick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
        .tag{display:inline-flex;padding:4px 10px;border-radius:20px;color:#b9d5ef;background:rgba(86,133,181,.14);border:1px solid var(--line);font-size:12px}
        .tag:hover{color:var(--cyan);border-color:var(--line-strong)}
        .compliance{display:flex;gap:10px;align-items:flex-start;font-size:12px;color:#8fa5bd;margin-top:18px}
        .compliance b{color:var(--warn);font-size:17px;line-height:1}
        .section{padding:58px 0}
        .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:24px}
        .section-head p{max-width:570px;color:var(--muted);margin:0}
        .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .metric,.glass-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
        .metric{padding:21px;position:relative;overflow:hidden}
        .metric:after{content:"";position:absolute;right:-18px;bottom:-23px;width:75px;height:75px;border:1px solid rgba(85,217,239,.2);border-radius:50%}
        .metric-value{font-size:30px;font-weight:800;color:var(--cyan);letter-spacing:-.04em}
        .metric-name{font-weight:700;margin:2px 0 4px}
        .metric small{color:var(--muted);font-size:12px}
        .matrix{display:grid;grid-template-columns:1.25fr .85fr .85fr;gap:15px}
        .glass-card{padding:23px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
        .glass-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
        .matrix .large{grid-row:span 2;min-height:280px;background:linear-gradient(145deg,rgba(27,62,96,.82),rgba(12,25,44,.82))}
        .card-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:28px}
        .status{font-size:11px;color:var(--success);border:1px solid rgba(101,219,178,.35);padding:3px 8px;border-radius:20px}
        .card-number{color:#6085aa;font-size:13px}
        .glass-card p{color:var(--muted);font-size:14px;margin:10px 0 20px}
        .card-link{color:var(--cyan);font-size:13px;font-weight:700}
        .card-link:hover{color:#fff}
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:15px}
        .compare-card{padding:25px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(13,30,51,.68)}
        .compare-card.featured{border-color:var(--line-strong)}
        .compare-title{display:flex;justify-content:space-between;margin-bottom:20px}
        .compare-list{list-style:none;margin:0;padding:0}
        .compare-list li{display:flex;justify-content:space-between;gap:15px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
        .compare-list li strong{color:var(--text);font-size:13px}
        .meter{height:5px;width:86px;background:#263d59;border-radius:5px;overflow:hidden;margin-top:8px}
        .meter i{display:block;height:100%;background:var(--cyan);border-radius:5px}
        .faq-wrap{max-width:850px}
        .accordion{background:transparent;margin:0}
        .accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:9px;overflow:hidden;background:rgba(14,31,51,.62)}
        .accordion-title{color:var(--text);font-weight:700;border:0!important;padding:18px 48px 18px 19px;font-size:15px}
        .accordion-title:hover,.accordion-title:focus{background:rgba(72,133,180,.13);color:var(--cyan)}
        .accordion-content{background:rgba(4,15,28,.55);border-top:1px solid var(--line)!important;color:var(--muted);font-size:14px;padding:16px 19px}
        .cta{display:grid;grid-template-columns:1fr 1.1fr;gap:35px;padding:34px;border-radius:var(--radius);border:1px solid var(--line-strong);background:linear-gradient(115deg,rgba(23,58,89,.85),rgba(12,27,49,.8))}
        .cta p{color:var(--muted);max-width:520px}
        .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
        label{display:block;color:#c9d9e9;font-size:13px;font-weight:700;margin-bottom:6px}
        input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:rgba(4,15,29,.7);color:var(--text);padding:10px 12px}
        textarea{min-height:96px;resize:vertical}
        input::placeholder,textarea::placeholder{color:#607894}
        input:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,239,.12);outline:0}
        .full{grid-column:1/-1}
        .check{display:flex;gap:8px;align-items:flex-start;color:var(--muted);font-size:12px;margin:12px 0}
        .check input{width:16px;margin-top:5px}
        .site-footer{border-top:1px solid var(--line);padding:38px 0 14px;color:var(--muted)}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:35px}
        .footer-brand{font-weight:700;color:var(--text);font-size:18px}
        .site-footer h3{font-size:14px;margin-bottom:10px}
        .site-footer a{display:block;font-size:13px;color:var(--muted);margin:5px 0}
        .site-footer a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid var(--line);margin-top:28px;padding-top:15px;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        @media(max-width:1023px){
            :root{--sidebar:210px}.main{padding:0 28px}.hero-grid{grid-template-columns:1fr}.metrics{grid-template-columns:repeat(2,1fr)}
        }
        @media(max-width:767px){
            .side-nav{display:none}.mobile-bar{height:65px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line);background:rgba(4,13,26,.92);position:sticky;top:0;z-index:30}.mobile-bar .brand{margin:0;font-size:16px}.menu-button{background:transparent;border:1px solid var(--line);color:var(--cyan);border-radius:9px;min-width:44px;min-height:42px}.main{margin-left:0;padding:0 18px}.hero{padding:48px 0 25px}.hero-copy{font-size:16px}.section{padding:42px 0}.section-head{display:block}.section-head p{margin-top:10px}.matrix,.compare,.cta{grid-template-columns:1fr}.matrix .large{grid-row:auto;min-height:0}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}.search-row{display:block}.search-row .button{width:100%;margin-top:9px}}
        @media(max-width:520px){h1{font-size:36px}.metrics{display:flex;overflow-x:auto;padding-bottom:5px}.metric{min-width:190px}.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.glass-card,.metric,.compare-card{padding:19px}}
        @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --bg:#07111f;--bg-deep:#040b15;--panel:rgba(16,31,53,.78);--panel-soft:rgba(23,43,70,.56);
 --cyan:#55d9ef;--blue:#4389ff;--violet:#9b8cff;--coral:#f39b87;
 --text:#edf6ff;--muted:#9db0c8;--line:rgba(143,188,229,.18);--line-strong:rgba(85,217,239,.48);
 --success:#65dbb2;--warn:#f0c675;--radius:20px;--small-radius:12px;
 --shadow:0 22px 70px rgba(0,0,0,.28);--glow:0 0 28px rgba(85,217,239,.16);
 --sidebar:248px;--ease:220ms ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 78% 5%,rgba(58,111,207,.15),transparent 32%),radial-gradient(circle at 14% 80%,rgba(31,156,184,.08),transparent 28%);z-index:-1}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
img{max-width:100%;display:block}
button,input,textarea{font:inherit}
button{cursor:pointer}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(32px,4.2vw,58px);line-height:1.18;letter-spacing:-.035em;margin-bottom:20px}
h2{font-size:clamp(24px,3vw,36px);line-height:1.28;margin-bottom:12px}
h3{font-size:18px;line-height:1.4}
.container{max-width:1220px;margin:0 auto}
.side-nav{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar);padding:28px 18px;background:rgba(4,13,26,.88);border-right:1px solid var(--line);z-index:20;display:flex;flex-direction:column}
.brand{display:flex;align-items:flex-start;gap:11px;font-weight:700;line-height:1.35;font-size:19px;letter-spacing:.01em;margin:4px 10px 44px}
.brand-mark{width:30px;height:30px;flex:0 0 30px;border:1px solid var(--cyan);border-radius:9px;position:relative;box-shadow:var(--glow)}
.brand-mark:after{content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
.nav-caption{font-size:11px;color:#6f89a8;letter-spacing:.16em;padding:0 12px;margin-bottom:10px}
.nav-list{list-style:none;margin:0;padding:0}
.nav-list li{margin:5px 0}
.nav-list a{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid transparent;border-radius:12px;color:var(--muted)}
.nav-list a:hover{color:var(--text);background:rgba(58,104,158,.18);border-color:var(--line)}
.nav-list a.active{color:var(--text);background:linear-gradient(90deg,rgba(62,132,187,.25),rgba(62,132,187,.06));border-color:var(--line-strong);box-shadow:inset 3px 0 var(--cyan)}
.nav-dot{width:7px;height:7px;border-radius:50%;background:#58728f}
.active .nav-dot{background:var(--cyan);box-shadow:0 0 11px var(--cyan)}
.side-note{margin-top:auto;padding:14px 13px;color:#8ca3bd;background:rgba(16,35,59,.58);border:1px solid var(--line);border-radius:13px;font-size:12px;line-height:1.6}
.side-note strong{display:block;color:var(--warn);font-size:12px;margin-bottom:5px}
.main{margin-left:var(--sidebar);padding:0 5vw 70px}
.mobile-bar{display:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:17px}
.eyebrow:before{content:"";width:27px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero{padding:66px 0 35px;border-bottom:1px solid var(--line)}
.breadcrumb{color:#718aa5;font-size:13px;margin-bottom:28px}
.breadcrumb a:hover{color:var(--cyan)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:42px;align-items:end}
.hero-copy{max-width:720px;color:var(--muted);font-size:17px;margin-bottom:24px}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:11px;border:1px solid var(--cyan);background:rgba(53,177,208,.18);color:var(--text);font-weight:700;box-shadow:0 0 20px rgba(85,217,239,.11)}
.button:hover{transform:translateY(-2px);background:rgba(85,217,239,.3);box-shadow:0 0 28px rgba(85,217,239,.25)}
.button.secondary{border-color:var(--line-strong);background:transparent;color:#c4d5e8}
.button.secondary:hover{background:rgba(83,145,198,.15)}
.button.small{min-height:36px;padding:6px 13px;font-size:13px}
.glass-card,.metric,.filter-box,.aside-box,.feedback-box{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
.summary-panel{padding:22px}
.summary-title{display:flex;justify-content:space-between;align-items:center;padding-bottom:15px;border-bottom:1px solid var(--line);margin-bottom:15px}
.status{display:inline-flex;align-items:center;gap:7px;color:var(--success);font-size:12px}
.status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success)}
.summary-list{list-style:none;padding:0;margin:0}
.summary-list li{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;padding:8px 0;border-bottom:1px solid rgba(143,188,229,.1)}
.summary-list strong{color:var(--text)}
.section{padding:48px 0 0}
.section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:22px}
.section-head p{max-width:600px;color:var(--muted);margin:0}
.filter-box{padding:17px 19px;margin-bottom:24px}
.filter-line{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filter-label{font-size:13px;color:#7790aa;margin-right:4px}
.tag{display:inline-flex;padding:5px 12px;border-radius:20px;color:#b9d5ef;background:rgba(86,133,181,.14);border:1px solid var(--line);font-size:12px}
.tag:hover,.tag.selected{color:var(--cyan);border-color:var(--line-strong);background:rgba(85,217,239,.1)}
.content-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:25px;align-items:start}
.index-list{display:grid;gap:14px}
.index-card{display:grid;grid-template-columns:155px 1fr;gap:20px;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(14,31,51,.7);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.index-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--glow)}
.thumb{min-height:145px;border-radius:14px;position:relative;overflow:hidden;background:linear-gradient(140deg,rgba(65,131,197,.65),rgba(19,39,73,.75))}
.thumb:before{content:"";position:absolute;width:120px;height:120px;border:1px solid rgba(138,225,255,.5);border-radius:50%;right:-30px;top:-26px}
.thumb:after{content:"";position:absolute;width:70px;height:70px;border:1px solid rgba(155,140,255,.55);transform:rotate(35deg);left:25px;bottom:20px}
.thumb span{position:absolute;left:13px;bottom:11px;color:#dff7ff;font-size:12px;z-index:1}
.card-meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:8px}
.card-meta .tag{padding:3px 9px}
.card-meta time{font-size:12px;color:#718ba7}
.index-card h3{margin:8px 0 7px;font-size:19px}
.index-card p{color:var(--muted);font-size:14px;margin-bottom:14px}
.card-footer{display:flex;justify-content:space-between;align-items:center;gap:10px}
.card-state{font-size:12px;color:var(--success)}
.aside-stack{display:grid;gap:16px}
.aside-box{padding:21px}
.aside-box h3{margin-bottom:14px}
.aside-box p{color:var(--muted);font-size:13px;margin-bottom:14px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.aside-links{list-style:none;padding:0;margin:0}
.aside-links li{border-bottom:1px solid var(--line);padding:11px 0;font-size:14px;color:#b8cade}
.aside-links li:last-child{border-bottom:0}
.aside-links a:hover{color:var(--cyan)}
.progress{height:6px;border-radius:10px;background:#132a45;overflow:hidden;margin:9px 0 6px}
.progress span{display:block;height:100%;border-radius:inherit;background:var(--cyan);box-shadow:0 0 12px rgba(85,217,239,.45)}
.notice{padding:16px;border-left:2px solid var(--warn);background:rgba(240,198,117,.07);color:#b9c5d4;font-size:13px;border-radius:0 10px 10px 0}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:22px}
.pagination a,.pagination span{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:13px}
.pagination a:hover,.pagination span.current{color:var(--cyan);border-color:var(--line-strong);background:rgba(85,217,239,.1)}
.faq-wrap{max-width:850px}
.accordion{background:transparent;margin:0}
.accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:9px;overflow:hidden;background:rgba(14,31,51,.62)}
.accordion-title{color:var(--text);font-weight:700;border:0!important;padding:18px 48px 18px 19px;font-size:15px}
.accordion-title:hover,.accordion-title:focus{background:rgba(72,133,180,.13);color:var(--cyan)}
.accordion-content{background:rgba(8,20,36,.75);color:var(--muted);border:0!important;padding:0 20px 18px;font-size:14px}
.feedback-box{display:grid;grid-template-columns:.85fr 1.15fr;gap:32px;padding:30px;margin-top:50px}
.feedback-box p{color:var(--muted);font-size:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}
label{display:block;color:#b8cade;font-size:13px;margin-bottom:6px}
input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:rgba(2,12,25,.62);color:var(--text);padding:10px 12px;outline:none}
input:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,239,.12)}
textarea{min-height:105px;resize:vertical}
.form-group{margin-bottom:13px}
.check{display:flex;align-items:flex-start;gap:8px;color:#8ea4bc;font-size:12px;margin:10px 0 15px}
.check input{width:15px;margin-top:5px;accent-color:var(--cyan)}
.form-tip{color:#718aa5;font-size:11px;margin-top:9px}
.site-footer{margin-left:var(--sidebar);border-top:1px solid var(--line);background:rgba(4,13,26,.72);padding:42px 5vw 22px;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}
.footer-brand{font-size:20px;font-weight:700;color:var(--text)}
.site-footer h3{color:var(--text);font-size:14px;margin-bottom:12px}
.site-footer a{display:block;color:var(--muted);font-size:13px;margin:7px 0}
.site-footer a:hover{color:var(--cyan)}
.copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);margin-top:30px;padding-top:17px;font-size:12px;color:#6f89a5}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
@media(max-width:1024px){
 :root{--sidebar:210px}
 .hero-grid,.content-layout{grid-template-columns:1fr}
 .summary-panel{max-width:600px}
}
@media(max-width:767px){
 .side-nav{display:none}
 .main{margin-left:0;padding:0 18px 50px}
 .mobile-bar{display:flex;position:sticky;top:0;z-index:19;margin:0 -18px;padding:13px 18px;background:rgba(4,13,26,.94);border-bottom:1px solid var(--line);align-items:center;justify-content:space-between}
 .mobile-brand{font-weight:700;color:var(--text)}
 .menu-button{border:1px solid var(--line-strong);border-radius:9px;background:rgba(85,217,239,.1);color:var(--cyan);padding:7px 11px}
 .hero{padding-top:38px}
 .hero-grid{gap:25px}
 .index-card{grid-template-columns:105px 1fr;gap:13px}
 .thumb{min-height:125px}
 .feedback-box{grid-template-columns:1fr;padding:23px}
 .site-footer{margin-left:0;padding:34px 18px 20px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
 .footer-grid>div:first-child{grid-column:1/-1}
 .copyright{display:block}
 .copyright span{display:block;margin-bottom:5px}
}
@media(max-width:520px){
 h1{font-size:34px}
 .index-card{grid-template-columns:1fr}
 .thumb{min-height:110px}
 .form-row{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
 .hero-actions .button{width:100%}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}

/* roulang page: category2 */
:root{
            --bg:#07111f;--bg-deep:#040b15;--panel:rgba(16,31,53,.78);--panel-soft:rgba(23,43,70,.56);
            --cyan:#55d9ef;--blue:#4389ff;--violet:#9b8cff;--coral:#f39b87;
            --text:#edf6ff;--muted:#9db0c8;--line:rgba(143,188,229,.18);--line-strong:rgba(85,217,239,.48);
            --success:#65dbb2;--warn:#f0c675;--radius:20px;--small-radius:12px;
            --shadow:0 22px 70px rgba(0,0,0,.28);--glow:0 0 28px rgba(85,217,239,.16);
            --sidebar:210px;--ease:220ms ease
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
        body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 78% 5%,rgba(58,111,207,.15),transparent 32%),radial-gradient(circle at 14% 80%,rgba(31,156,184,.08),transparent 28%);z-index:-1}
        a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease)}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        button{cursor:pointer}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(34px,4.3vw,62px);line-height:1.16;letter-spacing:-.035em;margin-bottom:18px}
        h2{font-size:clamp(25px,3vw,38px);line-height:1.25;margin-bottom:10px}
        h3{font-size:19px;line-height:1.4;margin-bottom:8px}
        .side-nav{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar);padding:28px 18px;background:rgba(4,13,26,.9);border-right:1px solid var(--line);z-index:20;display:flex;flex-direction:column}
        .brand{display:flex;align-items:flex-start;gap:11px;font-weight:700;line-height:1.35;font-size:18px;letter-spacing:.01em;margin:4px 10px 44px}
        .brand-mark{width:30px;height:30px;flex:0 0 30px;border:1px solid var(--cyan);border-radius:9px;position:relative;box-shadow:var(--glow)}
        .brand-mark:after{content:"";position:absolute;left:8px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
        .nav-caption{font-size:11px;color:#6f89a8;letter-spacing:.16em;padding:0 12px;margin-bottom:10px}
        .nav-list{list-style:none;margin:0;padding:0}
        .nav-list li{margin:5px 0}
        .nav-list a{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid transparent;border-radius:12px;color:var(--muted)}
        .nav-list a:hover{color:var(--text);background:rgba(58,104,158,.18);border-color:var(--line)}
        .nav-list a.active{color:var(--text);background:linear-gradient(90deg,rgba(62,132,187,.25),rgba(62,132,187,.06));border-color:var(--line-strong);box-shadow:inset 3px 0 var(--cyan)}
        .nav-dot{width:7px;height:7px;border-radius:50%;background:#58728f}
        .active .nav-dot{background:var(--cyan);box-shadow:0 0 11px var(--cyan)}
        .side-note{margin-top:auto;padding:14px 12px;color:#8196ae;font-size:12px;line-height:1.65;border-top:1px solid var(--line)}
        .side-note strong{display:block;color:var(--warn);font-size:12px;margin-bottom:4px}
        .main{margin-left:var(--sidebar);padding:0 5vw 70px}
        .container{max-width:1220px;margin:0 auto}
        .mobile-bar{display:none}
        .page-head{padding:70px 0 35px;border-bottom:1px solid var(--line)}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:15px}
        .eyebrow:before{content:"";width:27px;height:1px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
        .page-intro{max-width:760px;color:var(--muted);font-size:17px;margin-bottom:25px}
        .crumbs{font-size:13px;color:#7891ad;margin-bottom:25px}
        .crumbs a:hover{color:var(--cyan)}
        .head-meta{display:flex;gap:10px;flex-wrap:wrap}
        .tag,.status{display:inline-flex;align-items:center;padding:5px 11px;border-radius:20px;color:#b9d5ef;background:rgba(86,133,181,.14);border:1px solid var(--line);font-size:12px}
        .status{color:var(--success);border-color:rgba(101,219,178,.3);background:rgba(101,219,178,.08)}
        .filter-strip{margin:28px 0 38px;padding:17px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-soft);display:flex;align-items:center;gap:16px;flex-wrap:wrap}
        .filter-label{font-size:13px;color:var(--muted);font-weight:700}
        .filter-button{border:1px solid var(--line);background:rgba(4,14,28,.5);color:var(--muted);border-radius:9px;padding:8px 13px;font-size:13px;transition:all var(--ease)}
        .filter-button:hover,.filter-button.active{color:var(--text);border-color:var(--cyan);background:rgba(85,217,239,.13);box-shadow:0 0 16px rgba(85,217,239,.12)}
        .content-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,.75fr);gap:28px;align-items:start}
        .feature-card{min-height:355px;padding:29px;border:1px solid var(--line-strong);border-radius:var(--radius);background:linear-gradient(145deg,rgba(26,55,87,.86),rgba(10,24,43,.75));box-shadow:var(--shadow),var(--glow);display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden}
        .feature-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(85,217,239,.15),transparent 38%,rgba(155,140,255,.14));pointer-events:none}
        .feature-card>*{position:relative}
        .feature-card p{color:#b6c9dd;max-width:590px;margin:12px 0 22px}
        .feature-code{position:absolute;top:24px;right:25px;color:var(--cyan);font-size:12px;letter-spacing:.12em}
        .index-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:17px}
        .glass-card{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
        .glass-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow)}
        .card-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:22px}
        .card-number{color:#6085aa;font-size:13px}
        .card-summary{color:var(--muted);font-size:14px;min-height:66px;margin-bottom:17px}
        .card-link{color:var(--cyan);font-size:13px;font-weight:700}
        .card-link:hover{color:#fff}
        .side-panel{padding:23px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(13,30,51,.7);box-shadow:var(--shadow)}
        .side-panel h3{margin-bottom:17px}
        .side-panel p{font-size:13px;color:var(--muted)}
        .side-list{list-style:none;padding:0;margin:17px 0 0}
        .side-list li{padding:12px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;color:var(--muted);font-size:13px}
        .side-list li:last-child{border-bottom:0}
        .side-list strong{color:var(--text);font-weight:600}
        .section{padding:64px 0 0}
        .section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:24px}
        .section-head p{max-width:580px;color:var(--muted);margin:0}
        .mosaic{display:grid;grid-template-columns:1.25fr .85fr .85fr;grid-template-rows:auto auto;gap:17px}
        .mosaic .wide{grid-row:span 2;min-height:380px}
        .mosaic .medium{min-height:180px}
        .mosaic .compact{padding:18px;min-height:145px}
        .cover-mark{height:74px;border-radius:12px;margin-bottom:19px;background:linear-gradient(135deg,rgba(85,217,239,.22),rgba(67,137,255,.08));border:1px solid var(--line);position:relative}
        .cover-mark:after{content:"";position:absolute;left:18px;bottom:15px;width:46%;height:2px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
        .wide .cover-mark{height:150px}
        .mini-meta{display:flex;align-items:center;justify-content:space-between;color:#7690ac;font-size:12px;margin-bottom:10px}
        .dot-live{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--success);margin-right:6px;box-shadow:0 0 9px var(--success)}
        .mosaic p{font-size:13px;color:var(--muted);margin:8px 0 18px}
        .tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
        .tag-cloud .tag{cursor:pointer}
        .notice{margin-top:21px;padding:16px;border-left:2px solid var(--warn);background:rgba(240,198,117,.07);color:#b9c4cf;font-size:13px}
        .compare{display:grid;grid-template-columns:1fr 1fr;gap:17px}
        .compare-card{padding:25px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(13,30,51,.68)}
        .compare-card.featured{border-color:var(--line-strong)}
        .compare-title{display:flex;justify-content:space-between;gap:12px;margin-bottom:18px}
        .compare-list{list-style:none;margin:0;padding:0}
        .compare-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);display:flex;justify-content:space-between;gap:12px}
        .compare-list li:last-child{border-bottom:0}
        .compare-list strong{color:var(--text);font-size:13px}
        .bar{height:5px;background:rgba(112,151,190,.15);border-radius:9px;margin-top:6px;overflow:hidden}
        .bar i{display:block;height:100%;background:var(--cyan);border-radius:9px;box-shadow:0 0 10px rgba(85,217,239,.55)}
        .faq-wrap{max-width:880px}
        .accordion{background:transparent;margin:0}
        .accordion-item{border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:9px;overflow:hidden;background:rgba(14,31,51,.62)}
        .accordion-title{color:var(--text);font-weight:700;border:0!important;padding:18px 48px 18px 19px;font-size:15px}
        .accordion-title:hover,.accordion-title:focus{background:rgba(72,133,180,.13);color:var(--cyan)}
        .accordion-content{background:rgba(5,16,30,.55);border-top:1px solid var(--line);color:var(--muted);font-size:14px;padding:17px 19px}
        .cta{display:grid;grid-template-columns:.9fr 1.1fr;gap:35px;padding:34px;border-radius:var(--radius);border:1px solid var(--line-strong);background:linear-gradient(145deg,rgba(22,55,84,.8),rgba(10,24,43,.72));box-shadow:var(--shadow)}
        .cta p{color:var(--muted);font-size:14px}
        .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        label{display:block;color:#b9cbe0;font-size:13px;margin-bottom:6px}
        input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:rgba(2,12,25,.58);color:var(--text);padding:11px 13px;outline:0}
        textarea{min-height:105px;resize:vertical}
        input:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,217,239,.12)}
        .full{grid-column:1/-1}
        .check{display:flex;align-items:flex-start;gap:9px;color:var(--muted);font-size:12px;margin:13px 0}
        .check input{width:16px;margin-top:4px;accent-color:var(--cyan)}
        .button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;border-radius:11px;border:1px solid var(--cyan);background:rgba(53,177,208,.18);color:var(--text);font-weight:700;box-shadow:0 0 20px rgba(85,217,239,.11)}
        .button:hover{transform:translateY(-2px);background:rgba(85,217,239,.3);box-shadow:0 0 28px rgba(85,217,239,.25)}
        .button.secondary{border-color:var(--line-strong);background:transparent;color:#c4d5e8}
        .button.small{min-height:36px;padding:6px 13px;font-size:13px}
        .site-footer{margin-left:var(--sidebar);border-top:1px solid var(--line);padding:42px 5vw 24px;background:rgba(3,11,21,.7);color:var(--muted)}
        .footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr;gap:35px}
        .footer-brand{font-size:20px;font-weight:700;color:var(--text)}
        .site-footer h3{font-size:14px;color:var(--text);margin-bottom:12px}
        .site-footer a{display:block;font-size:13px;margin:7px 0;color:var(--muted)}
        .site-footer a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:12px}
        :focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
        @media(max-width:1024px){
            :root{--sidebar:185px}.content-layout{grid-template-columns:1fr}.side-panel{display:grid;grid-template-columns:1fr 1fr;gap:20px}.side-list{margin-top:0}.site-footer{margin-left:var(--sidebar)}
        }
        @media(max-width:767px){
            .side-nav{display:none}.mobile-bar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:rgba(4,13,26,.94);border-bottom:1px solid var(--line);position:relative;z-index:10}.mobile-brand{display:flex;gap:9px;align-items:center;font-weight:700;line-height:1.2}.mobile-brand .brand-mark{width:25px;height:25px;flex-basis:25px}.mobile-brand .brand-mark:after{left:6px;top:6px;width:11px;height:11px}.menu-button{min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--cyan);font-size:20px}.main{margin-left:0;padding:0 20px 55px}.site-footer{margin-left:0;padding:35px 20px 20px}.page-head{padding:42px 0 28px}.page-intro{font-size:15px}.filter-strip{overflow-x:auto;flex-wrap:nowrap;margin:22px 0 28px}.filter-label{white-space:nowrap}.filter-button{white-space:nowrap}.index-grid,.mosaic,.compare,.cta,.footer-grid{grid-template-columns:1fr}.mosaic .wide{grid-row:auto;min-height:0}.mosaic .wide .cover-mark{height:120px}.side-panel{display:block}.side-list{margin-top:17px}.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:6px}h1{font-size:36px}}
        @media(max-width:520px){h1{font-size:31px}.section{padding-top:46px}.feature-card{min-height:330px;padding:23px}.section-head{display:block}.section-head p{margin-top:10px}.glass-card{padding:19px}}
        @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}