/* roulang page: index */
:root{
            --ink:#241b29;
            --ink-soft:#5e5260;
            --plum:#392335;
            --plum-2:#513247;
            --cream:#f7f1e9;
            --paper:#fffdf9;
            --mist:#eee7e7;
            --line:#ded2d1;
            --coral:#ef9a72;
            --coral-deep:#d9795d;
            --gold:#e9bd6d;
            --white:#fff;
            --radius:18px;
            --radius-sm:10px;
            --shadow:0 18px 45px rgba(53,35,47,.11);
            --shadow-soft:0 8px 24px rgba(53,35,47,.08);
            --max:1220px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--cream);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.8;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,transform .25s ease}
        a:hover{color:var(--coral-deep)}
        img{max-width:100%;display:block}
        button,input,select,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(239,154,114,.65);outline-offset:3px}
        .grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
        .site-header{padding:22px 0 8px;position:relative;z-index:10}
        .dock{
            max-width:1120px;margin:0 auto;background:rgba(255,253,249,.93);
            border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-soft);
            padding:9px 12px;display:flex;align-items:center;gap:10px;
        }
        .brand{font-weight:800;letter-spacing:-.04em;font-size:18px;white-space:nowrap;padding:9px 12px;color:var(--plum)}
        .brand-mark{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--coral);margin:0 7px 2px 0}
        .nav-menu{display:flex;align-items:center;gap:3px;margin:0 auto}
        .nav-menu a{display:block;padding:8px 14px;border-radius:10px;color:var(--ink-soft);font-size:14px}
        .nav-menu a:hover,.nav-menu a.active{background:var(--mist);color:var(--plum);font-weight:700}
        .nav-menu a.active{box-shadow:inset 0 -3px 0 var(--coral)}
        .dock-search{border:0;background:transparent;color:var(--ink-soft);font-size:19px;padding:8px 11px}
        .button{border-radius:10px!important;font-weight:700;line-height:1.4;padding:.82rem 1.1rem;margin:0;transition:all .25s ease}
        .button.primary{background:var(--coral);color:var(--plum)}
        .button.primary:hover{background:var(--coral-deep);color:var(--white);transform:translateY(-2px)}
        .button.hollow{border:1px solid var(--plum);color:var(--plum);background:transparent}
        .button.hollow:hover{background:var(--plum);color:var(--white);transform:translateY(-2px)}
        .hero{padding:68px 0 75px;position:relative;overflow:hidden}
        .hero::before{content:"";position:absolute;inset:20px 0 auto 0;height:330px;background:linear-gradient(90deg,rgba(239,154,114,.14),transparent 65%);pointer-events:none}
        .hero-copy{position:relative;padding:34px 0 12px}
        .eyebrow,.section-kicker{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.12em;font-size:12px;color:var(--coral-deep);font-weight:700}
        h1,h2,h3{margin:0;color:var(--plum);letter-spacing:-.045em;line-height:1.2}
        h1{font-size:clamp(42px,5.5vw,76px);max-width:720px;margin:16px 0 24px}
        h2{font-size:clamp(30px,3.4vw,46px)}
        h3{font-size:21px}
        .hero-copy p{font-size:18px;color:var(--ink-soft);max-width:650px;margin:0 0 30px;line-height:1.9}
        .action-row{display:flex;gap:12px;flex-wrap:wrap}
        .hero-note{display:flex;gap:24px;flex-wrap:wrap;margin-top:34px;color:var(--ink-soft);font-size:13px}
        .hero-note strong{display:block;color:var(--plum);font-size:20px;font-family:ui-monospace,monospace}
        .index-panel{background:var(--plum);color:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
        .index-panel::after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:-65px;bottom:-70px}
        .panel-top{display:flex;justify-content:space-between;color:#d9bdc6;font:12px ui-monospace,monospace;letter-spacing:.08em}
        .panel-title{font-size:26px;font-weight:800;margin:32px 0 23px;line-height:1.35}
        .wave{height:42px;display:flex;align-items:center;gap:4px;margin:18px 0 25px}
        .wave i{display:block;width:4px;border-radius:5px;background:var(--coral);height:var(--h);opacity:.9}
        .progress-line{height:4px;background:#65475a;border-radius:4px;position:relative;margin:24px 0 12px}
        .progress-line span{display:block;width:64%;height:100%;background:var(--gold);border-radius:4px}
        .panel-list{list-style:none;margin:0;padding:0}
        .panel-list li{display:flex;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.14);padding:13px 0;color:#f3e6e5;font-size:14px}
        .panel-list em{font-style:normal;color:#d9bdc6;font:12px ui-monospace,monospace}
        .section{padding:92px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}
        .section-head p{max-width:560px;color:var(--ink-soft);margin:0}
        .section-label{margin-bottom:12px}
        .service-index{border-right:1px solid var(--line);padding-right:30px}
        .service-index span{display:block;color:var(--coral-deep);font:700 13px ui-monospace,monospace;margin-bottom:15px}
        .service-index h2{font-size:34px}
        .service-list{margin:0}
        .service-item{display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line);padding:20px 0}
        .service-item:first-child{padding-top:0}
        .number{font:700 14px ui-monospace,monospace;color:var(--coral-deep);min-width:32px}
        .service-item h3{font-size:20px;margin-bottom:3px}
        .service-item p{margin:0;color:var(--ink-soft);font-size:14px}
        .arrow{margin-left:auto;font-size:23px;color:var(--coral-deep)}
        .service-item:hover .arrow{transform:translateX(5px)}
        .metric-band{background:var(--plum);color:var(--white);padding:30px 34px;border-radius:var(--radius);box-shadow:var(--shadow)}
        .metric{padding:10px 26px;border-right:1px solid rgba(255,255,255,.2)}
        .metric:last-child{border:0}
        .metric strong{font:700 38px ui-monospace,monospace;color:var(--gold);display:block;line-height:1.2}
        .metric span{font-size:15px;color:#f1dfe2}
        .metric small{display:block;color:#cbb7bf;font-size:12px;margin-top:3px}
        .case-feature{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
        .case-visual{min-height:285px;background:linear-gradient(135deg,#56384d 0%,#30212e 62%,#e99a73 62%,#e99a73 100%);position:relative;padding:26px;color:var(--white)}
        .case-visual::after{content:"";position:absolute;left:26px;right:26px;bottom:28px;height:1px;background:rgba(255,255,255,.5);box-shadow:0 -13px 0 rgba(255,255,255,.22),0 -26px 0 rgba(255,255,255,.13)}
        .visual-code{font:12px ui-monospace,monospace;letter-spacing:.1em}
        .visual-word{position:absolute;left:26px;bottom:67px;font-size:34px;font-weight:800;line-height:1.2}
        .case-body{padding:27px}
        .tag{display:inline-block;border:1px solid var(--line);background:#faf3ef;border-radius:6px;padding:3px 8px;color:var(--coral-deep);font-size:12px;margin:0 5px 8px 0}
        .case-body p{color:var(--ink-soft);font-size:15px;margin:12px 0 22px}
        .case-side{display:flex;flex-direction:column;gap:12px}
        .side-case{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px;display:flex;gap:15px;align-items:flex-start}
        .side-case:hover{border-color:var(--coral);transform:translateX(4px)}
        .side-case .number{padding-top:4px}
        .side-case h3{font-size:17px;margin-bottom:4px}
        .side-case p{color:var(--ink-soft);font-size:13px;margin:0}
        .path{position:relative;margin-top:20px}
        .path::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:1px;background:var(--line)}
        .path-item{position:relative;display:grid;grid-template-columns:44px 190px 1fr auto;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
        .path-no{width:43px;height:43px;background:var(--cream);border:1px solid var(--coral);border-radius:50%;display:grid;place-items:center;color:var(--coral-deep);font:700 13px ui-monospace,monospace;z-index:1}
        .path-item p{margin:0;color:var(--ink-soft);font-size:14px}
        .path-item .tag{margin:0}
        .accordion{background:transparent;margin:0}
        .accordion-item{border:1px solid var(--line);border-bottom:0;background:var(--paper)}
        .accordion-item:first-child{border-radius:12px 12px 0 0}
        .accordion-item:last-child{border-bottom:1px solid var(--line);border-radius:0 0 12px 12px}
        .accordion-title{padding:20px 58px 20px 54px;color:var(--plum);font-size:17px;font-weight:700}
        .accordion-title::before{content:"+";right:22px;color:var(--coral-deep);font-size:23px}
        .is-active>.accordion-title::before{content:"−"}
        .accordion-content{padding:0 54px 20px;color:var(--ink-soft);font-size:15px;line-height:1.8;border:0}
        .faq-no{position:absolute;left:20px;color:var(--coral-deep);font:12px ui-monospace,monospace;padding-top:3px}
        .contact-wrap{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
        .contact-info{background:var(--plum);color:var(--white);padding:40px}
        .contact-info h2{color:var(--white);margin:12px 0 18px}
        .contact-info p{color:#dfccd1;font-size:15px}
        .contact-detail{border-top:1px solid rgba(255,255,255,.18);padding:15px 0;color:#f5e9e8;font-size:14px}
        .contact-detail span{display:block;color:#cbb7bf;font-size:12px;margin-bottom:2px}
        .form-panel{padding:40px}
        label{font-size:13px;color:var(--ink-soft);font-weight:700}
        input,select,textarea{border:1px solid var(--line)!important;border-radius:9px!important;background:#fff!important;box-shadow:none!important;color:var(--ink)!important;margin-top:6px!important}
        input:focus,select:focus,textarea:focus{border-color:var(--coral-deep)!important;box-shadow:0 0 0 3px rgba(239,154,114,.18)!important}
        textarea{min-height:120px;resize:vertical}
        .form-note{font-size:12px;color:var(--ink-soft);margin:12px 0 20px}
        .site-footer{background:var(--plum);color:#e8d9dc;padding:54px 0 24px}
        .footer-brand{color:var(--white);font-weight:800;font-size:19px;margin-bottom:12px}
        .footer-copy{color:#cbb7bf;font-size:13px;max-width:300px}
        .footer-title{color:var(--gold);font-size:13px;font-weight:700;margin-bottom:13px}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin-bottom:7px;font-size:14px}
        .footer-links a{color:#e8d9dc}
        .footer-links a:hover{color:var(--coral)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:38px;padding-top:18px;color:#bdaab1;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
        .soft-section{background:#f0e9e8}
        @media(max-width:900px){
            .dock{margin:0 16px}
            .nav-menu a{padding-left:9px;padding-right:9px}
            .brand{font-size:16px}
            .path-item{grid-template-columns:44px 160px 1fr}
            .path-item .tag{grid-column:3}
        }
        @media(max-width:767px){
            .site-header{padding-top:12px}
            .dock{overflow-x:auto;justify-content:flex-start;white-space:nowrap;border-radius:16px}
            .nav-menu{order:3;width:100%;overflow-x:auto;margin:0;display:none}
            .dock-search{margin-left:auto}
            .hero{padding:42px 0 50px}
            .hero-copy{padding-top:0}
            h1{font-size:43px}
            .hero-copy p{font-size:16px}
            .index-panel{margin-top:24px}
            .section{padding:62px 0}
            .section-head{display:block}
            .section-head p{margin-top:15px}
            .service-index{border-right:0;border-bottom:1px solid var(--line);padding:0 0 22px;margin-bottom:20px}
            .metric-band{padding:18px 8px}
            .metric{padding:14px 16px;border-right:0;border-bottom:1px solid rgba(255,255,255,.2)}
            .metric:last-child{border-bottom:0}
            .case-side{margin-top:16px}
            .path-item{grid-template-columns:44px 1fr;gap:12px}
            .path-item p{grid-column:2}
            .path-item .tag{grid-column:2;width:max-content}
            .path::before{left:21px}
            .form-panel,.contact-info{padding:28px 22px}
        }
        @media(max-width:520px){
            .grid-container{padding-left:17px;padding-right:17px}
            .brand{font-size:14px;padding-left:3px;padding-right:3px}
            .dock{margin:0 8px;gap:3px}
            .button{width:100%;text-align:center}
            .action-row{display:grid;grid-template-columns:1fr}
            h1{font-size:37px}
            .panel-title{font-size:23px}
            .section-head h2{font-size:31px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:6px}
        }
        @media(prefers-reduced-motion:reduce){
            *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
        }

/* roulang page: category1 */
:root{
--ink:#241b29;--ink-soft:#5e5260;--plum:#392335;--plum-2:#513247;
--cream:#f7f1e9;--paper:#fffdf9;--mist:#eee7e7;--line:#ded2d1;
--coral:#ef9a72;--coral-deep:#d9795d;--gold:#e9bd6d;--white:#fff;
--radius:18px;--radius-sm:10px;--shadow:0 18px 45px rgba(53,35,47,.11);
--shadow-soft:0 8px 24px rgba(53,35,47,.08);--max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,transform .25s ease}
a:hover{color:var(--coral-deep)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.grid-container{max-width:var(--max);padding-left:24px;padding-right:24px}
.site-header{padding:22px 0 8px;position:relative;z-index:10}
.dock{max-width:1160px;margin:auto;display:flex;align-items:center;gap:10px;padding:8px 12px;background:rgba(255,253,249,.93);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-soft)}
.brand{font-weight:800;letter-spacing:-.04em;font-size:18px;white-space:nowrap;padding:9px 12px;color:var(--plum)}
.brand-mark{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--coral);margin:0 7px 2px 0}
.nav-menu{display:flex;align-items:center;gap:3px;margin:0 auto}
.nav-menu a{display:block;padding:8px 14px;border-radius:10px;color:var(--ink-soft);font-size:14px}
.nav-menu a:hover,.nav-menu a.active{background:var(--mist);color:var(--plum);font-weight:700}
.nav-menu a.active{box-shadow:inset 0 -3px 0 var(--coral)}
.dock-search{border:0;background:transparent;color:var(--ink-soft);font-size:19px;padding:8px 11px}
.button{border-radius:10px!important;font-weight:700;line-height:1.4;padding:.82rem 1.1rem;margin:0;transition:all .25s ease}
.button.primary{background:var(--coral);color:var(--plum)}
.button.primary:hover{background:var(--coral-deep);color:var(--white);transform:translateY(-2px)}
.button.hollow{border:1px solid var(--plum);color:var(--plum);background:transparent}
.button.hollow:hover{background:var(--plum);color:var(--white);transform:translateY(-2px)}
.hero{padding:70px 0 56px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;left:0;right:0;top:30px;height:280px;background:linear-gradient(90deg,rgba(239,154,114,.16),transparent 70%);pointer-events:none}
.hero-copy{position:relative}
.eyebrow,.section-kicker{font:700 12px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;color:var(--coral-deep);text-transform:uppercase}
h1{font-size:clamp(38px,5vw,66px);line-height:1.16;letter-spacing:-.06em;color:var(--plum);margin:15px 0 20px;font-weight:850}
.hero-copy p{max-width:680px;color:var(--ink-soft);font-size:18px;margin:0;line-height:1.9}
.index-panel{background:var(--plum);color:#f3e6e5;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.index-panel:after{content:"01 02 03 04 05";position:absolute;right:20px;bottom:17px;color:rgba(255,255,255,.12);font:12px ui-monospace,monospace;letter-spacing:8px}
.panel-top{display:flex;justify-content:space-between;color:var(--gold);font:12px ui-monospace,monospace}
.panel-title{font-size:26px;font-weight:800;line-height:1.35;margin:28px 0 22px}
.progress-line{height:4px;background:rgba(255,255,255,.14);margin:20px 0 24px;position:relative}
.progress-line span{display:block;width:68%;height:100%;background:var(--coral)}
.panel-list{list-style:none;margin:0;padding:0}
.panel-list li{display:flex;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.14);padding:12px 0;font-size:14px}
.panel-list em{font-style:normal;color:#d9bdc6;font:12px ui-monospace,monospace}
.section{padding:76px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}
.section-head h2{font-size:32px;line-height:1.3;color:var(--plum);margin:8px 0 0;letter-spacing:-.04em}
.section-head p{max-width:530px;color:var(--ink-soft);margin:0}
.filter-rail{padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);position:sticky;top:25px}
.filter-rail h3{font-size:18px;margin:0 0 16px;color:var(--plum)}
.filter-list{list-style:none;margin:0;padding:0}
.filter-list li{border-top:1px solid var(--line)}
.filter-list a{display:flex;justify-content:space-between;padding:12px 0;color:var(--ink-soft);font-size:14px}
.filter-list a:hover,.filter-list a.current{color:var(--coral-deep);font-weight:700}
.filter-list span{font:12px ui-monospace,monospace;color:var(--coral-deep)}
.feature-card{background:var(--plum-2);color:#fff;border-radius:var(--radius);padding:30px;min-height:260px;box-shadow:var(--shadow-soft);position:relative;overflow:hidden}
.feature-card:before{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(239,154,114,.38);border-radius:50%;right:-45px;top:-45px}
.feature-card h3{font-size:28px;line-height:1.35;margin:16px 0 10px;max-width:520px}
.feature-card p{color:#e5d4d8;margin:0 0 25px;max-width:560px}
.tag{display:inline-block;border:1px solid var(--line);background:#faf3ef;border-radius:6px;padding:3px 8px;color:var(--coral-deep);font-size:12px;margin:0 5px 8px 0}
.feature-card .tag{background:rgba(239,154,114,.13);border-color:rgba(239,154,114,.4);color:var(--gold)}
.entry-list{margin-top:18px}
.entry{display:grid;grid-template-columns:58px 1fr auto;align-items:center;gap:18px;padding:19px 0;border-bottom:1px solid var(--line)}
.entry:first-child{border-top:1px solid var(--line)}
.entry-no{font:14px ui-monospace,monospace;color:var(--coral-deep)}
.entry h3{font-size:19px;margin:0 0 3px;color:var(--plum)}
.entry p{font-size:14px;color:var(--ink-soft);margin:0;line-height:1.65}
.entry-meta{font:12px ui-monospace,monospace;color:var(--ink-soft);white-space:nowrap}
.entry:hover h3{color:var(--coral-deep)}
.entry-arrow{font-size:22px;color:var(--coral-deep)}
.filter-buttons{display:flex;gap:9px;overflow-x:auto;margin-bottom:24px;padding-bottom:5px}
.filter-buttons a{white-space:nowrap;border:1px solid var(--line);border-radius:8px;padding:7px 14px;font-size:13px;color:var(--ink-soft);background:var(--paper)}
.filter-buttons a:hover,.filter-buttons a.active{background:var(--coral);border-color:var(--coral);color:var(--plum);font-weight:700}
.cta-strip{background:var(--coral);border-radius:var(--radius);padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-strip h2{margin:0;color:var(--plum);font-size:26px}
.cta-strip p{margin:4px 0 0;color:#63404a;font-size:14px}
.site-footer{background:var(--plum);color:#e8d9dc;padding:54px 0 24px}
.footer-brand{color:var(--white);font-weight:800;font-size:19px;margin-bottom:12px}
.footer-copy{color:#cbb7bf;font-size:13px;max-width:300px}
.footer-title{color:var(--gold);font-size:13px;font-weight:700;margin-bottom:13px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:7px;font-size:14px}
.footer-links a{color:#e8d9dc}
.footer-links a:hover{color:var(--coral)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:17px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#bdaab2;font-size:12px}
:focus-visible{outline:3px solid rgba(239,154,114,.55);outline-offset:3px}
@media(max-width:768px){
.dock{margin:0 16px;overflow:hidden}.brand{font-size:15px;padding-left:4px;padding-right:4px}.nav-menu{overflow-x:auto;justify-content:flex-start}.nav-menu a{padding:8px 9px;white-space:nowrap}.dock-search{display:none}.dock>.button{white-space:nowrap;padding:.7rem .8rem;font-size:13px}
.hero{padding:48px 0 35px}h1{font-size:43px}.index-panel{margin-top:28px}.section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:14px}.filter-rail{position:static;margin-bottom:24px}.cta-strip{display:block}.cta-strip .button{display:inline-block;margin-top:20px}
}
@media(max-width:520px){
.grid-container{padding-left:18px;padding-right:18px}.site-header{padding-top:12px}.dock{margin:0 8px}.brand{max-width:170px;overflow:hidden;text-overflow:ellipsis}.nav-menu{display:none}.dock{justify-content:space-between}.hero{padding-top:38px}h1{font-size:37px}.hero-copy p{font-size:16px}.entry{grid-template-columns:37px 1fr 20px;gap:10px}.entry-meta{display:none}.entry h3{font-size:17px}.feature-card{padding:24px}.feature-card h3{font-size:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}