/* roulang page: index */
:root{
            --ink:#211d2a;
            --ink-soft:#383242;
            --night:#19151f;
            --night-2:#251d2d;
            --paper:#f7f4ef;
            --paper-2:#eee9e2;
            --white:#fffdf9;
            --muted:#756d7e;
            --line:#ded7df;
            --mint:#b9f36c;
            --mint-deep:#8bc83e;
            --coral:#ff806d;
            --purple:#8d6ee8;
            --shadow:0 18px 50px rgba(32,24,43,.12);
            --shadow-dark:0 18px 50px rgba(0,0,0,.22);
            --radius:18px;
            --radius-sm:11px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
            font-size:16px;
            line-height:1.75;
            overflow-x:hidden;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        .container{max-width:1240px}
        .site-header{
            position:sticky;top:0;z-index:1000;
            background:rgba(25,21,31,.94);
            border-bottom:1px solid rgba(255,255,255,.1);
            box-shadow:0 8px 25px rgba(0,0,0,.1);
        }
        .nav-shell{min-height:78px;display:flex;align-items:center;gap:28px}
        .brand{
            flex:0 0 auto;color:#fff;display:flex;align-items:center;gap:10px;
            font-size:18px;font-weight:800;letter-spacing:-.5px;white-space:nowrap
        }
        .brand-mark{
            width:34px;height:34px;border-radius:10px;background:var(--mint);
            display:grid;place-items:center;color:var(--night);font-size:18px;
            box-shadow:5px 5px 0 rgba(255,128,109,.7)
        }
        .nav-pills-custom{
            display:flex;gap:5px;align-items:center;flex:1;overflow-x:auto;scrollbar-width:none
        }
        .nav-pills-custom::-webkit-scrollbar{display:none}
        .nav-pills-custom a{
            color:#bdb5c4;padding:8px 15px;border-radius:30px;font-size:14px;
            white-space:nowrap;transition:.22s ease
        }
        .nav-pills-custom a:hover{color:#fff;background:rgba(255,255,255,.1)}
        .nav-pills-custom a.active{color:var(--night);background:var(--mint);font-weight:700}
        .nav-action{flex:0 0 auto}
        .btn-main,.btn-outline,.btn-coral{
            display:inline-flex;align-items:center;justify-content:center;gap:9px;
            border-radius:10px;padding:11px 18px;font-weight:750;font-size:14px;
            transition:transform .2s ease,background .2s ease,box-shadow .2s ease
        }
        .btn-main{background:var(--mint);color:var(--night);box-shadow:0 7px 0 rgba(139,200,62,.28)}
        .btn-main:hover{background:#d0ff91;transform:translateY(-2px);color:var(--night)}
        .btn-outline{color:#fff;border:1px solid rgba(255,255,255,.28)}
        .btn-outline:hover{background:#fff;color:var(--night);transform:translateY(-2px)}
        .btn-coral{background:var(--coral);color:#fff}
        .btn-coral:hover{background:#ff9a89;color:#fff;transform:translateY(-2px)}
        .hero{
            background:var(--night);color:#fff;padding:86px 0 94px;position:relative;isolation:isolate
        }
        .hero:before,.hero:after{content:"";position:absolute;z-index:-1;border-radius:50%;filter:blur(1px)}
        .hero:before{width:430px;height:430px;background:rgba(141,110,232,.16);right:-100px;top:-180px}
        .hero:after{width:240px;height:240px;background:rgba(185,243,108,.1);left:28%;bottom:-170px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--mint);
            font-size:12px;font-weight:800;letter-spacing:1.3px;text-transform:uppercase
        }
        .eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:currentColor}
        h1,h2,h3{line-height:1.2;letter-spacing:-1px}
        h1{font-size:clamp(40px,5vw,64px);font-weight:850;margin:17px 0 22px;max-width:700px}
        .hero-copy{color:#c9c1d0;max-width:640px;font-size:17px;line-height:1.9;margin-bottom:29px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-note{display:flex;gap:22px;margin-top:32px;color:#b9b1c1;font-size:13px}
        .hero-note strong{display:block;color:#fff;font-size:22px;line-height:1.2}
        .hero-board{
            background:#27212f;border:1px solid rgba(255,255,255,.14);border-radius:20px;
            padding:20px;box-shadow:var(--shadow-dark);position:relative
        }
        .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:16px;margin-bottom:14px}
        .board-title{font-size:14px;font-weight:750}.live-dot{color:var(--mint);font-size:12px}
        .board-tabs{display:flex;gap:7px;overflow:auto;margin-bottom:13px}
        .board-tabs span{font-size:11px;padding:5px 9px;border:1px solid #50465b;border-radius:20px;color:#cfc7d3;white-space:nowrap}
        .board-tabs span:first-child{background:var(--mint);color:var(--night);border-color:var(--mint);font-weight:700}
        .board-item{
            display:grid;grid-template-columns:54px 1fr auto;gap:12px;align-items:center;
            padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)
        }
        .board-thumb{height:42px;border-radius:8px;background:linear-gradient(135deg,#8d6ee8,#ff806d);position:relative}
        .board-thumb.two{background:linear-gradient(135deg,#b9f36c,#4c8d76)}
        .board-thumb.three{background:linear-gradient(135deg,#40364d,#bc84ca)}
        .board-item h3{font-size:14px;margin:0 0 3px;color:#fff;letter-spacing:0}
        .board-item p{font-size:11px;color:#9d94a8;margin:0}
        .state{font-size:10px;color:var(--mint);border:1px solid rgba(185,243,108,.35);padding:3px 6px;border-radius:5px;white-space:nowrap}
        .section{padding:100px 0}
        .section-head{max-width:670px;margin-bottom:42px}
        .section-head h2{font-size:clamp(30px,4vw,44px);margin:13px 0 15px;font-weight:820}
        .section-head p{color:var(--muted);margin:0}
        .pain-section{background:var(--paper-2)}
        .pain-grid{display:grid;grid-template-columns:180px 1fr;gap:42px}
        .big-index{font-size:100px;line-height:.9;font-weight:900;color:var(--coral);opacity:.8}
        .index-caption{font-size:13px;color:var(--muted);margin-top:15px}
        .pain-list{display:grid;gap:12px}
        .pain-item{
            display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;
            padding:22px 24px;background:var(--white);border:1px solid var(--line);
            border-radius:var(--radius-sm);transition:.2s ease
        }
        .pain-item:hover{transform:translateX(5px);box-shadow:var(--shadow)}
        .pain-num{font-size:23px;font-weight:850;color:var(--coral)}
        .pain-item h3{font-size:18px;margin:0 0 4px;letter-spacing:-.3px}
        .pain-item p{color:var(--muted);font-size:14px;margin:0}
        .tag{display:inline-block;padding:4px 9px;border-radius:20px;background:#eee8fa;color:#6850aa;font-size:11px;font-weight:700;white-space:nowrap}
        .solution{background:var(--white)}
        .path{display:grid;grid-template-columns:1.05fr 1.2fr 1.45fr;gap:16px;align-items:stretch}
        .path-step{padding:28px;border:1px solid var(--line);min-height:220px;position:relative}
        .path-step:nth-child(1){border-radius:18px 5px 5px 18px;background:#f1ede7}
        .path-step:nth-child(2){background:#ece6fa;margin-top:18px}
        .path-step:nth-child(3){border-radius:5px 18px 18px 5px;background:var(--night);color:#fff;margin-top:36px}
        .step-no{font-size:48px;font-weight:900;color:var(--coral);line-height:1}
        .path-step:nth-child(3) .step-no{color:var(--mint)}
        .path-step h3{font-size:21px;margin:25px 0 9px}
        .path-step p{font-size:14px;color:var(--muted);margin:0}
        .path-step:nth-child(3) p{color:#c7bfcc}
        .content-section{background:var(--paper)}
        .feature-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:18px}
        .feature-card{min-height:390px;border-radius:20px;padding:32px;position:relative;overflow:hidden;color:#fff;background:linear-gradient(135deg,#312643 0%,#17131d 76%)}
        .feature-card:after{content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(185,243,108,.35);border-radius:50%;right:-100px;bottom:-120px}
        .feature-card .tag{background:rgba(185,243,108,.15);color:var(--mint)}
        .feature-card h3{font-size:30px;max-width:420px;margin:70px 0 12px}
        .feature-card p{color:#c7bfcc;max-width:440px}
        .feature-link{position:absolute;bottom:28px;color:var(--mint);font-weight:700}
        .side-stack{display:grid;gap:12px}
        .compact-item{background:var(--white);border:1px solid var(--line);padding:19px;border-radius:13px;display:flex;justify-content:space-between;gap:12px;align-items:center;transition:.2s}
        .compact-item:hover{border-color:var(--purple);transform:translateX(3px)}
        .compact-item h3{font-size:16px;letter-spacing:0;margin:0 0 3px}
        .compact-item p{font-size:12px;color:var(--muted);margin:0}
        .compact-item i{color:var(--purple);font-size:18px}
        .topic-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
        .topic-strip span{padding:7px 13px;border:1px solid var(--line);border-radius:8px;background:var(--paper-2);font-size:13px;color:var(--ink-soft)}
        .voices{background:var(--night-2);color:#fff}
        .voices .section-kicker{color:var(--mint)}
        .voices .section-head p{color:#c8bfcc}
        .voice-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:stretch}
        .quote-card{padding:38px;background:var(--mint);color:var(--night);border-radius:18px;min-height:260px}
        .quote-mark{font-size:56px;font-family:Georgia;line-height:.6;color:#5f8532}
        .quote-card blockquote{font-size:25px;font-weight:750;line-height:1.5;margin:24px 0}
        .quote-card cite{font-size:13px;font-style:normal;font-weight:700}
        .voice-side{display:grid;gap:12px}
        .mini-quote{padding:20px;border:1px solid rgba(255,255,255,.14);border-radius:12px;color:#ddd4e1;font-size:14px}
        .mini-quote i{color:var(--coral);margin-right:7px}
        .faq-section{background:var(--white)}
        .faq-wrap{max-width:900px}
        .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}
        .accordion-button{background:transparent!important;color:var(--ink)!important;box-shadow:none!important;padding:21px 5px;font-weight:750}
        .accordion-button:after{background-image:none;content:"+";font-size:22px;color:var(--purple);transform:none}
        .accordion-button:not(.collapsed):after{content:"−"}
        .accordion-body{padding:0 35px 22px 5px;color:var(--muted);font-size:14px}
        .cta{padding:78px 0;background:var(--coral);position:relative;overflow:hidden}
        .cta:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:-120px;top:-180px}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;z-index:1}
        .cta h2{font-size:clamp(30px,4vw,46px);color:#fff;margin:0 0 12px}
        .cta p{color:#fff1ed;max-width:660px;margin:0}
        .cta .btn-main{background:var(--night);color:#fff;box-shadow:none}
        .cta .btn-main:hover{background:#33283d;color:#fff}
        .site-footer{background:var(--night);color:#aaa1b1;padding:48px 0 28px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
        .footer-brand{color:#fff;font-size:18px;font-weight:800;margin-bottom:12px}
        .footer-copy{font-size:13px;max-width:330px;margin:0}
        .footer-title{color:#fff;font-weight:700;font-size:14px;margin-bottom:13px}
        .footer-links{display:grid;gap:8px;font-size:13px}
        .footer-links a{transition:.2s}.footer-links a:hover{color:var(--mint);padding-left:3px}
        .copyright{display:flex;justify-content:space-between;gap:15px;padding-top:20px;font-size:12px;color:#817788}
        @media (max-width:991px){
            .nav-shell{gap:15px}.brand{font-size:16px}.nav-pills-custom a{padding:7px 11px}
            .hero{padding:65px 0 70px}.pain-grid{grid-template-columns:110px 1fr;gap:22px}
            .feature-layout,.voice-layout{grid-template-columns:1fr}.feature-card{min-height:320px}
        }
        @media (max-width:767px){
            .nav-shell{min-height:68px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
            .brand{order:1}.nav-action{order:2;margin-left:auto}.nav-pills-custom{order:3;flex-basis:100%;margin-bottom:1px}
            .nav-action .btn-main{padding:8px 12px;font-size:12px}
            .hero{padding:54px 0 62px}.hero-copy{font-size:16px}.hero-note{gap:16px}
            .section{padding:70px 0}.pain-grid{grid-template-columns:1fr;gap:25px}.big-index{font-size:65px}
            .pain-item{grid-template-columns:42px 1fr;gap:12px;padding:18px}.pain-item .tag{grid-column:2}
            .path{grid-template-columns:1fr;gap:12px}.path-step,.path-step:nth-child(2),.path-step:nth-child(3){margin:0;border-radius:14px;min-height:170px}
            .path-step h3{margin-top:15px}.feature-card{min-height:350px;padding:25px}.feature-card h3{margin-top:55px;font-size:26px}
            .quote-card blockquote{font-size:21px}.cta-inner{display:block}.cta .btn-main{margin-top:25px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
            .copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media (max-width:520px){
            h1{font-size:38px}.hero-actions a{width:100%}.hero-note{flex-wrap:wrap}
            .board-item{grid-template-columns:46px 1fr}.state{grid-column:2;justify-self:start}
            .section-head{margin-bottom:28px}.footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category2 */
:root{
 --ink:#211d2a;--ink-soft:#383242;--night:#19151f;--night-2:#251d2d;
 --paper:#f7f4ef;--paper-2:#eee9e2;--white:#fffdf9;--muted:#756d7e;
 --line:#ded7df;--mint:#b9f36c;--mint-deep:#8bc83e;--coral:#ff806d;
 --purple:#8d6ee8;--shadow:0 18px 50px rgba(32,24,43,.12);
 --shadow-dark:0 18px 50px rgba(0,0,0,.22);--radius:18px;--radius-sm:11px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.container{max-width:1240px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(25,21,31,.96);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.nav-shell{min-height:78px;display:flex;align-items:center;gap:28px}
.brand{flex:0 0 auto;color:#fff;display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);display:grid;place-items:center;color:var(--night);font-size:18px;box-shadow:5px 5px 0 rgba(255,128,109,.7)}
.nav-pills-custom{display:flex;gap:5px;align-items:center;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-pills-custom::-webkit-scrollbar{display:none}
.nav-pills-custom a{color:#bdb5c4;padding:8px 15px;border-radius:30px;font-size:14px;white-space:nowrap;transition:.22s ease}
.nav-pills-custom a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-pills-custom a.active{color:var(--night);background:var(--mint);font-weight:700}
.nav-action{flex:0 0 auto}
.btn-main,.btn-outline,.btn-coral{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:10px;padding:11px 18px;font-weight:750;font-size:14px;transition:transform .2s ease,background .2s ease,box-shadow .2s ease}
.btn-main{background:var(--mint);color:var(--night);box-shadow:0 7px 0 rgba(139,200,62,.28)}
.btn-main:hover{background:#d0ff91;transform:translateY(-2px);color:var(--night)}
.btn-outline{color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-outline:hover{background:#fff;color:var(--night);transform:translateY(-2px)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:#ff9a89;color:#fff;transform:translateY(-2px)}
.page-hero{background:var(--night);color:#fff;padding:72px 0 76px;position:relative;isolation:isolate}
.page-hero:before{content:"";position:absolute;z-index:-1;width:460px;height:460px;right:-150px;top:-220px;border-radius:50%;background:rgba(141,110,232,.18)}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:800;letter-spacing:1.3px}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:currentColor}
.page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-1.8px;font-weight:820;max-width:760px;margin:18px 0 18px}
.page-hero p{color:#c9c1d0;max-width:710px;font-size:17px;margin:0}
.hero-index{margin-top:34px;display:flex;gap:10px;flex-wrap:wrap}
.index-chip,.filter-chip{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.18);border-radius:30px;padding:8px 13px;color:#d8d0dd;font-size:13px}
.index-chip.current{background:var(--mint);border-color:var(--mint);color:var(--night);font-weight:700}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{font-size:clamp(29px,4vw,42px);line-height:1.25;margin:13px 0 14px;font-weight:820;letter-spacing:-1px}
.section-head p{color:var(--muted);margin:0}
.filter-bar{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 26px rgba(32,24,43,.05);margin-bottom:36px}
.filter-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.search-box{display:flex;align-items:center;gap:10px;flex:1 1 260px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:0 14px;color:var(--muted)}
.search-box input{width:100%;border:0;background:transparent;padding:11px 0;outline:0;color:var(--ink)}
.filter-select{border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:11px 14px;color:var(--ink);min-width:145px}
.filter-chip{border-color:var(--line);color:var(--ink-soft);background:var(--paper);transition:.2s}
.filter-chip:hover,.filter-chip.active{background:var(--mint);border-color:var(--mint);color:var(--night)}
.topic-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px;align-items:start}
.topic-list{display:grid;gap:16px}
.topic-item{display:grid;grid-template-columns:176px 1fr auto;gap:22px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;transition:.22s ease}
.topic-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9bde0}
.topic-cover{height:124px;border-radius:12px;position:relative;overflow:hidden;background:linear-gradient(135deg,#35294b,#17131d)}
.topic-cover:before,.topic-cover:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(185,243,108,.45)}
.topic-cover:before{width:150px;height:150px;right:-48px;top:-50px}
.topic-cover:after{width:85px;height:85px;left:24px;bottom:-35px;border-color:rgba(255,128,109,.55)}
.cover-label{position:absolute;left:14px;bottom:12px;color:#fff;font-size:12px;font-weight:700;z-index:1}
.topic-item h3{font-size:20px;line-height:1.35;margin:8px 0 7px;font-weight:780}
.topic-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.item-meta{display:flex;gap:10px;flex-wrap:wrap;color:#958c9b;font-size:12px;margin-top:10px}
.tag{display:inline-block;padding:4px 9px;border-radius:20px;background:#eee8fa;color:#6850aa;font-size:11px;font-weight:700;white-space:nowrap}
.status{color:#688f2c;background:#eef8db;border-radius:20px;padding:4px 9px;font-size:11px;font-weight:700;white-space:nowrap}
.topic-arrow{font-size:21px;color:var(--purple);transition:.2s}
.topic-item:hover .topic-arrow{transform:translateX(4px);color:var(--coral)}
.side-index{background:var(--night);color:#fff;border-radius:var(--radius);padding:24px;position:sticky;top:104px;box-shadow:var(--shadow-dark)}
.side-index h3{font-size:19px;margin:0 0 18px}
.side-index p{font-size:13px;color:#bcb3c5;margin:0 0 20px}
.side-links{display:grid;gap:7px}
.side-links a{display:flex;justify-content:space-between;align-items:center;color:#c8bfce;padding:10px 12px;border-radius:9px;border-left:3px solid transparent;font-size:14px;transition:.2s}
.side-links a:hover,.side-links a.active{background:rgba(185,243,108,.12);border-left-color:var(--mint);color:var(--mint)}
.route-section{background:var(--paper-2)}
.route-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.route-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.route-panel.dark{background:var(--night);color:#fff;border-color:var(--night)}
.route-panel h3{font-size:24px;margin:0 0 18px}
.route-step{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:17px 0;border-bottom:1px solid var(--line)}
.dark .route-step{border-color:rgba(255,255,255,.1)}
.step-number{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;background:var(--mint);color:var(--night);font-weight:800}
.route-step h4{font-size:16px;margin:0 0 3px}
.route-step p{font-size:13px;color:var(--muted);margin:0}
.dark .route-step p{color:#bcb3c5}
.faq-section{background:var(--paper)}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}
.accordion-button{background:transparent!important;color:var(--ink)!important;box-shadow:none!important;font-weight:750;padding:21px 4px;font-size:17px}
.accordion-button:not(.collapsed){color:#6850aa!important}
.accordion-button:after{background-size:14px}
.accordion-body{color:var(--muted);padding:0 36px 20px 4px;font-size:14px}
.cta-section{padding:76px 0;background:var(--night);color:#fff}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-box h2{font-size:clamp(28px,4vw,42px);margin:0 0 10px;font-weight:820}
.cta-box p{color:#c9c1d0;margin:0;max-width:600px}
.cta-actions{display:flex;gap:11px;flex-wrap:wrap;flex:0 0 auto}
.site-footer{background:#120f17;color:#fff;padding:52px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr;gap:45px;padding-bottom:40px}
.footer-brand{font-size:20px;font-weight:800;margin-bottom:10px}
.footer-copy{color:#aaa1b1;font-size:14px;max-width:360px;margin:0}
.footer-title{font-size:13px;color:var(--mint);font-weight:800;margin-bottom:12px}
.footer-links{display:grid;gap:7px}
.footer-links a{color:#bdb4c2;font-size:14px;transition:.2s}
.footer-links a:hover{color:var(--mint);transform:translateX(3px)}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding-top:19px;color:#8c8392;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
@media(max-width:991px){
 .nav-shell{gap:16px}.topic-layout{grid-template-columns:1fr}.side-index{position:static}.route-grid{grid-template-columns:1fr}
}
@media(max-width:767px){
 .nav-shell{min-height:70px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}.brand{font-size:16px}.nav-action{margin-left:auto}.nav-action .btn-main{padding:9px 12px}.nav-pills-custom{order:3;flex-basis:100%}
 .page-hero{padding:54px 0 60px}.page-hero h1{font-size:37px}.page-hero p{font-size:15px}
 .section{padding:62px 0}.filter-row{align-items:stretch}.filter-select{flex:1}.topic-item{grid-template-columns:88px 1fr;gap:14px}.topic-cover{height:100px}.topic-arrow{grid-column:2;justify-self:end;margin-top:-12px}.topic-item h3{font-size:17px;margin-top:4px}
 .cta-box{display:block}.cta-actions{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:520px){
 .container{padding-left:18px;padding-right:18px}.brand{max-width:215px;overflow:hidden;text-overflow:ellipsis}.nav-action .btn-main i{display:none}
 .topic-item{grid-template-columns:1fr}.topic-cover{height:145px}.topic-arrow{grid-column:auto}.filter-select{min-width:120px}
 .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
}

/* roulang page: category1 */
:root{
 --ink:#211d2a;--ink-soft:#383242;--night:#19151f;--night-2:#251d2d;
 --paper:#f7f4ef;--paper-2:#eee9e2;--white:#fffdf9;--muted:#756d7e;
 --line:#ded7df;--mint:#b9f36c;--mint-deep:#8bc83e;--coral:#ff806d;
 --purple:#8d6ee8;--shadow:0 18px 50px rgba(32,24,43,.12);
 --shadow-dark:0 18px 50px rgba(0,0,0,.22);--radius:18px;--radius-sm:11px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.container{max-width:1240px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(25,21,31,.96);border-bottom:1px solid rgba(255,255,255,.1);box-shadow:0 8px 25px rgba(0,0,0,.1)}
.nav-shell{min-height:78px;display:flex;align-items:center;gap:28px}
.brand{flex:0 0 auto;color:#fff;display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--mint);display:grid;place-items:center;color:var(--night);font-size:18px;box-shadow:5px 5px 0 rgba(255,128,109,.7)}
.nav-pills-custom{display:flex;gap:5px;align-items:center;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-pills-custom::-webkit-scrollbar{display:none}
.nav-pills-custom a{color:#bdb5c4;padding:8px 15px;border-radius:30px;font-size:14px;white-space:nowrap;transition:.22s ease}
.nav-pills-custom a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-pills-custom a.active{color:var(--night);background:var(--mint);font-weight:700}
.nav-action{flex:0 0 auto}
.btn-main,.btn-outline,.btn-coral{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:10px;padding:11px 18px;font-weight:750;font-size:14px;transition:transform .2s ease,background .2s ease,box-shadow .2s ease}
.btn-main{background:var(--mint);color:var(--night);box-shadow:0 7px 0 rgba(139,200,62,.28)}
.btn-main:hover{background:#d0ff91;transform:translateY(-2px);color:var(--night)}
.btn-outline{color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-outline:hover{background:#fff;color:var(--night);transform:translateY(-2px)}
.btn-coral{background:var(--coral);color:#fff}
.btn-coral:hover{background:#ff9a89;color:#fff;transform:translateY(-2px)}
.page-hero{background:var(--night);color:#fff;padding:76px 0 82px;position:relative;isolation:isolate}
.page-hero:before{content:"";position:absolute;z-index:-1;width:420px;height:420px;right:-100px;top:-180px;border-radius:50%;background:rgba(141,110,232,.17)}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:800;letter-spacing:1.3px}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:currentColor}
.page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-2px;font-weight:820;margin:18px 0 17px;max-width:720px}
.hero-copy{color:#c9c1d0;max-width:710px;font-size:17px;line-height:1.9;margin:0}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-meta span,.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:20px;background:rgba(185,243,108,.13);color:var(--mint);font-size:12px;font-weight:700}
.index-board{background:#27212f;border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:22px;box-shadow:var(--shadow-dark)}
.board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;color:#fff;font-weight:750}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--mint);display:inline-block;box-shadow:0 0 0 5px rgba(185,243,108,.12)}
.board-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.09)}
.board-row:last-child{border-bottom:0}
.board-row strong{display:block;color:#fff;font-size:15px}
.board-row small{color:#a39baa;font-size:12px}
.board-number{color:var(--coral);font-size:22px;font-weight:800}
.section{padding:92px 0}
.section-head{max-width:700px;margin-bottom:38px}
.section-head h2{font-size:clamp(29px,4vw,43px);line-height:1.25;margin:13px 0 14px;font-weight:820;letter-spacing:-1px}
.section-head p{color:var(--muted);margin:0}
.filter-bar{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 10px 28px rgba(32,24,43,.06);margin-top:-35px;position:relative;z-index:2}
.filter-label{font-size:12px;color:var(--muted);font-weight:750;margin-bottom:7px;display:block}
.search-box{position:relative}
.search-box i{position:absolute;left:14px;top:12px;color:var(--muted)}
.search-box input,.filter-select{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:9px;padding:9px 12px;color:var(--ink);font-size:14px}
.search-box input{padding-left:39px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--paper);padding:8px 14px;border-radius:30px;font-size:13px;transition:.2s}
.chip:hover,.chip.active{background:var(--mint);border-color:var(--mint);color:var(--night);font-weight:700}
.guide-section{background:var(--paper-2)}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:26px;align-items:start}
.feature-entry{background:linear-gradient(135deg,#312643,#17131d);color:#fff;border-radius:20px;min-height:285px;padding:31px;position:relative;overflow:hidden;margin-bottom:16px}
.feature-entry:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(185,243,108,.34);border-radius:50%;right:-105px;bottom:-135px}
.feature-entry h3{font-size:29px;line-height:1.35;max-width:490px;margin:26px 0 12px}
.feature-entry p{color:#c7bfcc;max-width:550px;margin-bottom:25px}
.entry-link{color:var(--mint);font-weight:750;display:inline-flex;gap:8px;align-items:center}
.entry-link i{transition:.2s}
.entry-link:hover{color:#fff}.entry-link:hover i{transform:translateX(4px)}
.entry-list{display:grid;gap:12px}
.entry-item{display:grid;grid-template-columns:82px 1fr auto;align-items:center;gap:17px;background:var(--white);border:1px solid var(--line);padding:16px;border-radius:14px;transition:.2s}
.entry-item:hover{transform:translateX(4px);box-shadow:var(--shadow)}
.entry-thumb{height:66px;border-radius:10px;background:linear-gradient(135deg,#8d6ee8,#302343);display:grid;place-items:center;color:var(--mint);font-size:25px}
.entry-item h3{font-size:17px;margin:0 0 3px}.entry-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.6}
.entry-side{background:var(--night);color:#fff;border-radius:16px;padding:22px;position:sticky;top:103px}
.entry-side h3{font-size:18px;margin:0 0 19px}
.side-links{display:grid;gap:7px}
.side-links a{padding:11px 12px;border-left:3px solid transparent;color:#c7bfcc;font-size:14px;transition:.2s}
.side-links a:hover,.side-links a.active{border-color:var(--mint);background:rgba(185,243,108,.1);color:var(--mint)}
.side-note{border-top:1px solid rgba(255,255,255,.12);margin-top:22px;padding-top:18px;color:#aaa1b0;font-size:13px}
.path-section{background:var(--paper)}
.path-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.path-panel{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);padding:28px}
.path-step{display:flex;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}
.path-step:last-child{border-bottom:0;padding-bottom:0}
.step-no{width:34px;height:34px;flex:0 0 34px;border-radius:50%;display:grid;place-items:center;background:var(--mint);font-weight:800}
.path-step h3{font-size:17px;margin:0 0 3px}.path-step p{font-size:14px;color:var(--muted);margin:0}
.note-panel{background:#e5dcf8;border-radius:var(--radius);padding:29px;display:flex;flex-direction:column;justify-content:space-between}
.note-panel h3{font-size:25px;line-height:1.4;margin:0 0 12px}.note-panel p{color:#605675;font-size:14px}
.faq-section{background:var(--paper-2)}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}
.accordion-button{background:transparent!important;color:var(--ink)!important;box-shadow:none!important;font-weight:750;padding:20px 4px;font-size:16px}
.accordion-button:after{background-image:none;content:"+";font-size:22px;color:var(--purple);transform:none}
.accordion-button:not(.collapsed):after{content:"−"}
.accordion-body{color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
.cta-section{padding:76px 0;background:var(--mint)}
.cta-box{display:flex;justify-content:space-between;align-items:center;gap:28px}
.cta-box h2{font-size:clamp(28px,4vw,42px);line-height:1.25;margin:0 0 9px;font-weight:820}.cta-box p{margin:0;color:#46502e;max-width:650px}
.site-footer{background:var(--night);color:#fff;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px;padding-bottom:42px}
.footer-brand{font-weight:800;font-size:20px;margin-bottom:10px}.footer-copy{color:#a9a0b1;font-size:14px;max-width:360px;margin:0}
.footer-title{font-size:13px;color:var(--mint);font-weight:800;margin-bottom:13px}
.footer-links{display:grid;gap:7px}.footer-links a{color:#c6bdca;font-size:14px;transition:.2s}.footer-links a:hover{color:var(--mint);transform:translateX(3px)}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#8e8596;font-size:12px}
@media(max-width:991px){.nav-shell{gap:16px}.content-layout,.path-grid{grid-template-columns:1fr}.entry-side{position:static}.note-panel{min-height:220px}}
@media(max-width:767px){.nav-shell{min-height:70px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}.brand{font-size:16px}.nav-pills-custom{order:3;flex-basis:100%;margin-bottom:2px}.nav-action{margin-left:auto}.nav-action .btn-main{padding:9px 12px}.page-hero{padding:58px 0 66px}.page-hero h1{letter-spacing:-1px}.section{padding:66px 0}.filter-bar{margin-top:-22px}.entry-item{grid-template-columns:58px 1fr}.entry-thumb{height:58px}.entry-item .entry-link{grid-column:2;font-size:13px}.cta-box{display:block}.cta-box .btn-main{margin-top:23px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
@media(max-width:520px){.brand{max-width:calc(100% - 110px);overflow:hidden;text-overflow:ellipsis}.page-hero h1{font-size:35px}.hero-copy{font-size:16px}.filter-bar{padding:14px}.entry-item{gap:11px;padding:12px}.entry-item h3{font-size:15px}.feature-entry{padding:24px;min-height:320px}.feature-entry h3{font-size:24px}.footer-grid{grid-template-columns:1fr}.copyright{font-size:11px}}