/* roulang page: index */
:root{
            --ink:#241d2d;
            --muted:#756d7e;
            --paper:#fffaf8;
            --surface:#ffffff;
            --soft:#f5edf2;
            --line:#eadfe5;
            --plum:#542747;
            --berry:#a73568;
            --coral:#f2765d;
            --mint:#bce4d4;
            --gold:#f4c76e;
            --shadow:0 18px 50px rgba(54,28,48,.10);
            --shadow-soft:0 8px 28px rgba(54,28,48,.07);
            --radius-xl:30px;
            --radius-lg:22px;
            --radius-md:15px;
        }
        *,*::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 CJK SC",Arial,sans-serif;
            line-height:1.72;
            font-size:15px;
        }
        a{color:inherit;text-decoration:none;transition:.25s ease}
        img{max-width:100%;height:auto;display:block}
        button,input,select{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(242,118,93,.55);outline-offset:3px}
        .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(255,250,248,.94);
            border-bottom:1px solid rgba(234,223,229,.9);
            backdrop-filter:blur(12px);
        }
        .nav-row{min-height:78px;display:flex;align-items:center;gap:24px}
        .brand{
            flex:0 0 auto;display:flex;align-items:center;gap:10px;
            font-weight:800;letter-spacing:-.04em;font-size:18px;color:var(--plum);
            white-space:nowrap;
        }
        .brand-mark{
            width:34px;height:34px;border-radius:12px;
            background:linear-gradient(135deg,var(--berry),var(--coral));
            display:grid;place-items:center;color:#fff;font-weight:800;
            box-shadow:0 7px 16px rgba(167,53,104,.22);
        }
        .nav-search{flex:1;max-width:560px;margin:0 auto}
        .search-shell{
            height:46px;display:flex;align-items:center;gap:10px;
            padding:5px 6px 5px 15px;border:1px solid var(--line);
            border-radius:15px;background:#fff;box-shadow:0 4px 16px rgba(54,28,48,.04);
        }
        .search-icon{width:18px;height:18px;border:2px solid var(--berry);border-radius:50%;position:relative;flex:0 0 auto}
        .search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--berry);right:-5px;bottom:-2px;transform:rotate(45deg);border-radius:2px}
        .search-shell input{border:0;box-shadow:none;margin:0;padding:0 6px;min-width:0;flex:1;color:var(--ink);background:transparent}
        .search-shell input:focus{box-shadow:none}
        .clear-btn{border:0;background:transparent;color:#afa4b0;font-size:19px;line-height:1;padding:4px}
        .search-submit,.button-primary{
            border:0;color:#fff;background:linear-gradient(110deg,var(--berry),var(--coral));
            border-radius:11px;padding:10px 17px;font-weight:700;transition:.25s ease;
        }
        .search-submit:hover,.button-primary:hover{transform:translateY(-2px);box-shadow:0 9px 18px rgba(167,53,104,.22);color:#fff}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{padding:9px 11px;border-radius:10px;color:var(--muted);font-size:14px;white-space:nowrap}
        .nav-links a:hover,.nav-links a.active{background:var(--soft);color:var(--plum);font-weight:700}
        .nav-cta{border:1px solid var(--berry)!important;color:var(--berry)!important}
        .nav-cta:hover{background:var(--berry)!important;color:#fff!important}
        .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;color:var(--plum)}
        .hero{
            padding:74px 0 62px;position:relative;overflow:hidden;
            background:
                radial-gradient(circle at 86% 12%,rgba(242,118,93,.18),transparent 24%),
                radial-gradient(circle at 8% 34%,rgba(167,53,104,.16),transparent 28%),
                var(--plum);color:#fff;
        }
        .hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-140px;bottom:-270px}
        .hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(380px,.95fr);gap:58px;align-items:center;position:relative;z-index:1}
        .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.08em}
        .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(40px,5.5vw,70px);line-height:1.12;letter-spacing:-.065em;margin:18px 0 22px;max-width:700px}
        .hero-copy{font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);max-width:650px;margin-bottom:29px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .button-secondary{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:12px;padding:11px 18px}
        .button-secondary:hover{background:rgba(255,255,255,.12);color:#fff}
        .hero-search{padding:8px;background:#fff;border-radius:20px;box-shadow:var(--shadow);max-width:590px}
        .hero-search .search-shell{border:0;box-shadow:none;height:54px}
        .hero-note{font-size:12px;color:var(--muted);padding:4px 14px 9px}
        .hero-panel{margin-top:24px;padding:20px;border:1px solid rgba(255,255,255,.16);border-radius:20px;background:rgba(255,255,255,.08)}
        .panel-heading{display:flex;justify-content:space-between;gap:12px;font-weight:700;margin-bottom:15px}
        .status-dot{color:var(--mint);font-size:12px}
        .index-row{display:flex;align-items:center;gap:13px;padding:12px 0;border-top:1px solid rgba(255,255,255,.12)}
        .index-no{font-size:12px;color:var(--gold);font-weight:800}
        .index-row span:last-child{margin-left:auto;color:rgba(255,255,255,.58);font-size:12px}
        .section{padding:94px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
        .section-kicker{color:var(--berry);letter-spacing:.04em}
        h2{font-size:clamp(28px,3.4vw,43px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 0}
        .section-intro{max-width:490px;color:var(--muted);margin:0}
        .feature-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}
        .feature-main,.feature-side,.scenario,.example-main,.example-small,.access-main,.access-note{
            border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-soft)
        }
        .feature-main{padding:34px;min-height:310px;background:linear-gradient(145deg,#fff,#faedf3)}
        .feature-side{padding:26px;display:flex;flex-direction:column;justify-content:space-between}
        .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--soft);color:var(--berry);font-size:12px;font-weight:700}
        .feature-main h3{font-size:27px;margin:27px 0 10px;letter-spacing:-.04em}
        .feature-main p,.feature-side p{color:var(--muted);max-width:580px}
        .feature-link{color:var(--berry);font-weight:700}
        .metric-row{display:flex;gap:24px;margin-top:24px}
        .metric strong{display:block;font-size:25px;color:var(--plum);line-height:1.1}
        .metric small{color:var(--muted);font-size:12px}
        .side-list{list-style:none;margin:0;padding:0}
        .side-list li{padding:13px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}
        .side-list li span{color:var(--muted);font-size:12px}
        .scenarios{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
        .scenario{padding:23px;min-height:190px;position:relative}
        .scenario:nth-child(2){transform:translateY(18px)}
        .scenario:nth-child(4){transform:translateY(34px)}
        .scenario-number{font-size:13px;color:var(--coral);font-weight:800}
        .scenario h3{font-size:18px;margin:23px 0 8px}
        .scenario p{font-size:13px;color:var(--muted);line-height:1.65;margin-bottom:14px}
        .text-link{font-size:13px;color:var(--berry);font-weight:700}
        .examples{background:var(--soft)}
        .example-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
        .example-main{padding:32px;background:var(--plum);color:#fff;border-color:transparent;min-height:275px}
        .example-main p{color:rgba(255,255,255,.7);max-width:630px}
        .example-main h3{font-size:26px;margin:20px 0 12px}
        .path{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0}
        .path span{padding:7px 11px;border-radius:9px;background:rgba(255,255,255,.11);font-size:12px}
        .path span:not(:last-child):after{content:"→";margin-left:10px;color:var(--gold)}
        .example-side{display:grid;gap:18px}
        .example-small{padding:24px;min-height:128px}
        .example-small strong{display:block;font-size:17px;margin:10px 0 5px}
        .example-small p{font-size:13px;color:var(--muted);margin:0}
        .access-layout{display:grid;grid-template-columns:1fr .72fr;gap:18px;align-items:stretch}
        .access-main{padding:34px}
        .access-main h3{font-size:26px;margin:18px 0 10px}
        .access-main p{color:var(--muted);max-width:650px}
        .access-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
        .access-item{padding:15px;border-radius:14px;background:var(--soft);font-size:13px}
        .access-item b{display:block;color:var(--plum);margin-bottom:4px}
        .access-note{padding:28px;background:#fff7e7;border-color:#f4dfad}
        .access-note h3{font-size:19px;margin:12px 0}
        .access-note p{font-size:13px;color:#7e6945}
        .news-layout{display:grid;grid-template-columns:1fr .8fr;gap:30px}
        .news-list{border-top:1px solid var(--line)}
        .news-item{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
        .news-item a{font-weight:700}
        .news-item a:hover{color:var(--berry)}
        .news-item span{color:var(--muted);font-size:12px;white-space:nowrap}
        .news-note{padding:26px;border-radius:22px;background:linear-gradient(135deg,#f8d6d0,#f9edf0)}
        .news-note h3{font-size:22px;margin:0 0 10px}
        .news-note p{color:var(--muted);font-size:14px}
        .faq{background:#fff}
        .accordion{border:0;background:transparent}
        .accordion-item{border:0;border-bottom:1px solid var(--line)}
        .accordion-title{padding:21px 40px 21px 0;border:0;color:var(--ink);font-weight:700;font-size:16px;background:transparent}
        .accordion-title:hover,.accordion-title:focus{background:transparent;color:var(--berry)}
        .accordion-content{padding:0 40px 20px 0;border:0;color:var(--muted);font-size:14px;background:transparent}
        .cta{padding:54px 0}
        .cta-box{border-radius:var(--radius-xl);padding:42px 46px;background:linear-gradient(115deg,var(--berry),var(--coral));color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta-box h2{margin:0 0 10px;color:#fff}
        .cta-box p{margin:0;color:rgba(255,255,255,.8)}
        .cta-box .button-secondary{border-color:rgba(255,255,255,.55)}
        footer{padding:48px 0 25px;background:#211925;color:rgba(255,255,255,.68)}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:38px}
        footer .brand{color:#fff;margin-bottom:14px}
        footer .brand-mark{background:linear-gradient(135deg,var(--coral),var(--gold));color:var(--plum)}
        footer h3{font-size:14px;color:#fff;margin:3px 0 14px}
        footer p{font-size:13px;max-width:310px}
        .footer-links{list-style:none;margin:0;padding:0}
        .footer-links li{margin:8px 0;font-size:13px}
        .footer-links a:hover{color:#fff}
        .copyright{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:12px;color:rgba(255,255,255,.45);display:flex;justify-content:space-between;gap:20px}
        @media(max-width:1024px){
            .nav-row{gap:14px}.nav-links a{padding:8px 6px}.hero-grid{gap:35px}
            .scenarios{grid-template-columns:repeat(2,1fr)}.scenario:nth-child(2),.scenario:nth-child(4){transform:none}
        }
        @media(max-width:768px){
            .container{width:min(100% - 28px,620px)}
            .nav-row{min-height:65px;flex-wrap:wrap;padding:10px 0}.brand{font-size:16px}.menu-toggle{display:block;margin-left:auto}
            .nav-search{order:3;flex-basis:100%;max-width:none;padding-bottom:8px}.nav-links{display:none;width:100%;order:4;flex-direction:column;align-items:stretch;padding:8px 0 12px}.nav-links.open{display:flex}.nav-links a{padding:11px 12px}
            .hero{padding:55px 0 48px}.hero-grid,.feature-layout,.example-grid,.access-layout,.news-layout{grid-template-columns:1fr}
            h1{font-size:43px}.hero-copy{font-size:15px}.hero-panel{margin-top:20px}
            .section{padding:65px 0}.section-head{display:block;margin-bottom:25px}.section-intro{margin-top:13px}
            .feature-main{min-height:auto}.example-main{min-height:auto}.access-list{grid-template-columns:1fr}
            .cta-box{display:block;padding:32px 26px}.cta-box .button-secondary{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            .container{width:calc(100% - 24px)}.search-shell{height:43px}.search-submit{padding:9px 12px;font-size:13px}
            h1{font-size:37px}.hero-actions .button-primary,.hero-actions .button-secondary{width:100%;justify-content:center}
            .feature-main,.feature-side,.access-main,.access-note{padding:24px}.scenarios{grid-template-columns:1fr}.metric-row{gap:16px}
            .news-item{display:block}.news-item span{display:block;margin-top:5px}.footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category2 */
:root{
      --ink:#241d2d;--muted:#756d7e;--paper:#fffaf8;--surface:#fff;--soft:#f5edf2;
      --line:#eadfe5;--plum:#542747;--berry:#a73568;--coral:#f2765d;--mint:#bce4d4;
      --gold:#f4c76e;--shadow:0 18px 50px rgba(54,28,48,.10);--shadow-soft:0 8px 28px rgba(54,28,48,.07);
      --radius-xl:30px;--radius-lg:22px;--radius-md:15px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.72}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    img{display:block;max-width:100%;height:auto}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,248,.95);border-bottom:1px solid rgba(234,223,229,.9);backdrop-filter:blur(12px)}
    .nav-row{min-height:78px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;color:var(--plum);font-weight:800;font-size:18px;letter-spacing:-.04em;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--berry),var(--coral));display:grid;place-items:center;color:#fff;box-shadow:0 7px 16px rgba(167,53,104,.22)}
    .nav-search{flex:1;max-width:560px;margin:0 auto}
    .search-shell{height:46px;display:flex;align-items:center;gap:10px;padding:5px 6px 5px 15px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 4px 16px rgba(54,28,48,.04)}
    .search-icon{width:18px;height:18px;border:2px solid var(--berry);border-radius:50%;position:relative;flex:0 0 auto}
    .search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--berry);right:-5px;bottom:-2px;transform:rotate(45deg);border-radius:2px}
    .search-shell input{border:0;box-shadow:none;margin:0;padding:0 6px;min-width:0;flex:1;color:var(--ink);background:transparent}
    .search-shell input:focus{outline:0;box-shadow:none}
    .clear-btn{border:0;background:transparent;color:#afa4b0;font-size:19px;line-height:1;padding:4px}
    .search-submit,.button-primary{border:0;color:#fff;background:linear-gradient(110deg,var(--berry),var(--coral));border-radius:11px;padding:10px 17px;font-weight:700;transition:.25s ease}
    .search-submit:hover,.button-primary:hover{transform:translateY(-2px);box-shadow:0 9px 18px rgba(167,53,104,.22);color:#fff}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 11px;border-radius:10px;color:var(--muted);font-size:14px;white-space:nowrap}
    .nav-links a:hover,.nav-links a.active{background:var(--soft);color:var(--plum);font-weight:700}
    .nav-cta{border:1px solid var(--berry)!important;color:var(--berry)!important}
    .nav-cta:hover{background:var(--berry)!important;color:#fff!important}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;color:var(--plum)}
    .hero{padding:68px 0 62px;background:radial-gradient(circle at 86% 12%,rgba(242,118,93,.2),transparent 24%),radial-gradient(circle at 8% 34%,rgba(167,53,104,.17),transparent 28%),var(--plum);color:#fff;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-140px;bottom:-270px}
    .hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.05em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,66px);line-height:1.13;letter-spacing:-.07em;margin:18px 0 20px;max-width:700px}
    h2{font-size:clamp(28px,4vw,42px);line-height:1.2;letter-spacing:-.05em;margin:9px 0 12px}
    h3{font-size:21px;line-height:1.35;letter-spacing:-.03em}
    .hero-copy{font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);max-width:650px;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .button-secondary{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:12px;padding:11px 18px}
    .button-secondary:hover{background:rgba(255,255,255,.12);color:#fff}
    .hero-card{padding:27px;border-radius:var(--radius-xl);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);box-shadow:var(--shadow)}
    .hero-card h3{margin:14px 0 8px;color:#fff}
    .hero-card p{color:rgba(255,255,255,.7);font-size:14px}
    .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--soft);color:var(--berry);font-size:12px;font-weight:700}
    .hero-card .badge{background:rgba(244,199,110,.18);color:var(--gold)}
    .metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
    .metric{padding:14px 12px;border-radius:16px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.12)}
    .metric strong{display:block;font-size:20px;color:#fff}.metric span{font-size:12px;color:rgba(255,255,255,.58)}
    .section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
    .section-kicker{color:var(--berry)}.section-intro{max-width:490px;color:var(--muted);margin:0}
    .browse-layout{display:grid;grid-template-columns:280px 1fr;gap:22px}
    .filter-panel,.result-panel,.wide-card,.mini-card,.step-card,.faq-wrap,.cta{border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-soft)}
    .filter-panel{padding:24px;height:max-content;position:sticky;top:105px}
    .filter-panel h3{margin-bottom:18px}.filter-group{padding:16px 0;border-top:1px solid var(--line)}
    .filter-group label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}
    select,.filter-input{width:100%;height:42px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);padding:0 11px}
    .tag-row{display:flex;flex-wrap:wrap;gap:7px}.tag{border:1px solid var(--line);border-radius:99px;padding:6px 10px;color:var(--muted);font-size:12px;background:#fff}
    .tag:hover,.tag.active{border-color:var(--berry);background:var(--soft);color:var(--berry)}
    .result-panel{padding:28px;background:linear-gradient(145deg,#fff,#fff8f6)}
    .result-top{display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:8px}
    .result-top p{margin:0;color:var(--muted);font-size:13px}.result-list{display:grid;gap:0}
    .result-item{display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
    .result-item:last-child{border-bottom:0}.item-index{font-size:22px;font-weight:800;color:var(--coral)}
    .result-item h3{font-size:18px;margin:0 0 5px}.result-item p{color:var(--muted);font-size:13px;margin:0}
    .item-state{font-size:12px;color:#4c896f;background:#e9f7f0;border-radius:99px;padding:5px 9px;white-space:nowrap}
    .steps{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:16px}.step-card{padding:25px;min-height:190px}
    .step-card:nth-child(2){margin-top:26px;background:#fff2ed}.step-card:nth-child(3){margin-top:52px;background:#f5edf2}
    .step-no{color:var(--coral);font-weight:800;font-size:13px}.step-card h3{margin:22px 0 8px}.step-card p{color:var(--muted);font-size:14px}
    .example-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:18px}.wide-card{padding:32px;background:var(--plum);color:#fff;min-height:260px}.wide-card p{color:rgba(255,255,255,.7);max-width:620px}
    .path{display:flex;gap:8px;flex-wrap:wrap;margin:23px 0}.path span{padding:7px 11px;border-radius:10px;background:rgba(255,255,255,.1);font-size:13px}
    .mini-stack{display:grid;gap:18px}.mini-card{padding:23px}.mini-card p{color:var(--muted);font-size:13px;margin-bottom:0}
    .access-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.access-main,.access-note{padding:30px}.access-main{background:linear-gradient(135deg,#fff0e9,#fff)}
    .access-main p,.access-note p{color:var(--muted)}.access-list{list-style:none;padding:0;margin:20px 0 0}.access-list li{padding:10px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}.access-list span{color:var(--berry);font-weight:700}
    .faq-wrap{padding:12px 28px}.faq-item{border-bottom:1px solid var(--line)}.faq-item:last-child{border-bottom:0}.faq-question{width:100%;border:0;background:transparent;text-align:left;padding:20px 4px;color:var(--ink);font-weight:700;display:flex;justify-content:space-between;gap:20px}.faq-question:after{content:"＋";color:var(--berry);font-size:20px}.faq-answer{display:none;padding:0 35px 20px 4px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question:after{content:"－"}
    .cta{padding:35px 40px;background:linear-gradient(110deg,var(--berry),var(--coral));color:#fff;display:flex;justify-content:space-between;gap:25px;align-items:center}.cta h2{margin-bottom:7px}.cta p{margin:0;color:rgba(255,255,255,.78)}.cta .button-secondary{white-space:nowrap}
    footer{padding:58px 0 22px;background:#2d2230;color:#fff}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-grid .brand{color:#fff}.footer-grid p{color:rgba(255,255,255,.6);max-width:300px;margin-top:18px;font-size:14px}.footer-grid h3{font-size:15px;margin-bottom:14px;color:var(--gold)}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:8px 0}.footer-links a{color:rgba(255,255,255,.62);font-size:13px}.footer-links a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;color:rgba(255,255,255,.45);font-size:12px}
    :focus-visible{outline:3px solid rgba(242,118,93,.55);outline-offset:3px}
    @media(max-width:1024px){.nav-row{gap:14px}.nav-links a{padding:8px 7px}.hero-grid{gap:30px}.browse-layout{grid-template-columns:240px 1fr}}
    @media(max-width:768px){.container{width:min(100% - 28px,620px)}.nav-row{min-height:70px;flex-wrap:wrap;padding:11px 0}.brand{flex:1}.menu-toggle{display:block}.nav-search{order:3;flex-basis:100%;max-width:none}.nav-links{display:none;width:100%;order:4;flex-direction:column;align-items:stretch;padding-bottom:8px}.nav-links.show{display:flex}.nav-links a{text-align:center}.hero{padding:52px 0}.hero-grid,.browse-layout,.example-grid,.access-grid{grid-template-columns:1fr}.hero-card{margin-top:8px}.filter-panel{position:static}.steps{grid-template-columns:1fr}.step-card:nth-child(2),.step-card:nth-child(3){margin-top:0}.section{padding:64px 0}.section-head{display:block}.section-intro{margin-top:12px}.footer-grid{grid-template-columns:1fr 1fr}.cta{display:block;padding:28px}.cta .button-secondary{margin-top:22px}}
    @media(max-width:520px){h1{font-size:39px}.metric-row{gap:6px}.metric{padding:11px 8px}.metric strong{font-size:17px}.search-submit{padding:10px 12px}.result-panel,.filter-panel{padding:20px}.result-item{grid-template-columns:35px 1fr}.item-state{grid-column:2;width:max-content}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}

/* roulang page: category1 */
:root{
 --ink:#241d2d;--muted:#756d7e;--paper:#fffaf8;--surface:#fff;
 --soft:#f5edf2;--line:#eadfe5;--plum:#542747;--berry:#a73568;
 --coral:#f2765d;--mint:#bce4d4;--gold:#f4c76e;
 --shadow:0 18px 50px rgba(54,28,48,.10);
 --shadow-soft:0 8px 28px rgba(54,28,48,.07);
 --radius-xl:30px;--radius-lg:22px;--radius-md:15px;
}
*{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 CJK SC",Arial,sans-serif;font-size:15px;line-height:1.72}
a{color:inherit;text-decoration:none;transition:.25s ease}
a:focus,button:focus,input:focus,select:focus{outline:3px solid rgba(242,118,93,.35);outline-offset:2px}
img{max-width:100%;height:auto;display:block}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,248,.95);border-bottom:1px solid rgba(234,223,229,.9);backdrop-filter:blur(12px)}
.nav-row{min-height:78px;display:flex;align-items:center;gap:24px}
.brand{flex:0 0 auto;display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.04em;font-size:18px;color:var(--plum);white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--berry),var(--coral));display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:0 7px 16px rgba(167,53,104,.22)}
.nav-search{flex:1;max-width:560px;margin:0 auto}
.search-shell{height:46px;display:flex;align-items:center;gap:10px;padding:5px 6px 5px 15px;border:1px solid var(--line);border-radius:15px;background:#fff;box-shadow:0 4px 16px rgba(54,28,48,.04)}
.search-icon{width:18px;height:18px;border:2px solid var(--berry);border-radius:50%;position:relative;flex:0 0 auto}
.search-icon:after{content:"";position:absolute;width:7px;height:2px;background:var(--berry);right:-5px;bottom:-2px;transform:rotate(45deg);border-radius:2px}
.search-shell input{border:0;box-shadow:none;margin:0;padding:0 6px;min-width:0;flex:1;color:var(--ink);background:transparent}
.search-shell input:focus{box-shadow:none}
.clear-btn{border:0;background:transparent;color:#afa4b0;font-size:19px;line-height:1;padding:4px}
.search-submit,.button-primary{border:0;color:#fff;background:linear-gradient(110deg,var(--berry),var(--coral));border-radius:11px;padding:10px 17px;font-weight:700;transition:.25s ease}
.search-submit:hover,.button-primary:hover{transform:translateY(-2px);box-shadow:0 9px 18px rgba(167,53,104,.22);color:#fff}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{padding:9px 11px;border-radius:10px;color:var(--muted);font-size:14px;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:var(--soft);color:var(--plum);font-weight:700}
.nav-cta{border:1px solid var(--berry)!important;color:var(--berry)!important}
.nav-cta:hover{background:var(--berry)!important;color:#fff!important}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;color:var(--plum)}
.hero{padding:72px 0 60px;position:relative;overflow:hidden;background:radial-gradient(circle at 84% 12%,rgba(242,118,93,.2),transparent 25%),radial-gradient(circle at 8% 32%,rgba(167,53,104,.18),transparent 28%),var(--plum);color:#fff}
.hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-140px;bottom:-270px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(360px,.94fr);gap:58px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.05em}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--coral)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.065em;margin:18px 0 20px}
h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.05em;margin-bottom:12px}
h3{font-size:21px;line-height:1.35;letter-spacing:-.03em}
.hero-copy{font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);max-width:650px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.button-secondary{display:inline-flex;align-items:center;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:12px;padding:11px 18px}
.button-secondary:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-profile{padding:24px;border:1px solid rgba(255,255,255,.17);border-radius:26px;background:rgba(255,255,255,.09);box-shadow:0 20px 50px rgba(22,8,20,.16)}
.profile-head{display:flex;align-items:center;gap:15px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.15)}
.avatar{width:58px;height:58px;border-radius:20px;background:linear-gradient(145deg,var(--coral),var(--gold));display:grid;place-items:center;color:var(--plum);font-size:24px;font-weight:800}
.profile-name{font-size:18px;font-weight:800}
.profile-sub{font-size:12px;color:rgba(255,255,255,.62)}
.profile-follow{margin-left:auto;padding:8px 13px;border-radius:10px;border:1px solid rgba(255,255,255,.25);font-size:12px;color:#fff}
.profile-follow:hover{background:#fff;color:var(--plum)}
.badge-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}
.badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--soft);color:var(--berry);font-size:12px;font-weight:700}
.hero .badge{background:rgba(255,255,255,.13);color:#fff}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.stat{padding:13px 10px;border-radius:15px;background:rgba(255,255,255,.08)}
.stat strong{display:block;font-size:21px;color:var(--gold);line-height:1.2}
.stat span{font-size:12px;color:rgba(255,255,255,.62)}
.section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
.section-kicker{color:var(--berry);letter-spacing:.04em}
.section-intro{max-width:500px;color:var(--muted);margin-bottom:0}
.search-board{display:grid;grid-template-columns:280px minmax(0,1fr);gap:20px}
.filter-panel,.results-panel,.path-card,.tip-card,.faq-wrap,.cta-box{border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface);box-shadow:var(--shadow-soft)}
.filter-panel{padding:25px;height:max-content}
.filter-panel h3{margin-bottom:20px}
.filter-group{padding:17px 0;border-top:1px solid var(--line)}
.filter-group:first-of-type{border-top:0;padding-top:0}
.filter-label{display:block;font-size:13px;color:var(--muted);font-weight:700;margin-bottom:9px}
.filter-select{width:100%;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);padding:9px 10px}
.filter-tags{display:flex;gap:7px;flex-wrap:wrap}
.filter-tag{padding:6px 9px;border:1px solid var(--line);border-radius:9px;color:var(--muted);font-size:12px;background:#fff}
.filter-tag:hover,.filter-tag.selected{border-color:var(--berry);background:var(--soft);color:var(--berry)}
.filter-actions{display:flex;gap:8px;margin-top:18px}
.button-outline{border:1px solid var(--berry);color:var(--berry);border-radius:11px;padding:9px 13px;background:#fff;font-weight:700}
.button-outline:hover{background:var(--soft)}
.results-panel{padding:27px}
.results-top{display:flex;justify-content:space-between;align-items:center;gap:15px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.results-top h3{margin:0}
.status{font-size:12px;color:var(--muted);padding:6px 10px;border-radius:99px;background:#f9f3ed}
.result-item{display:grid;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:15px;padding:20px 0;border-bottom:1px solid var(--line)}
.result-item:last-child{border-bottom:0}
.result-index{width:42px;height:42px;border-radius:14px;background:var(--soft);color:var(--berry);display:grid;place-items:center;font-weight:800}
.result-item h4{font-size:17px;margin:0 0 5px}
.result-item p{font-size:13px;color:var(--muted);margin:0}
.result-meta{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px}
.result-meta span{font-size:11px;color:var(--muted)}
.result-link{color:var(--berry);font-weight:700;font-size:13px;white-space:nowrap}
.result-link:hover{color:var(--coral)}
.path-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:20px}
.path-card{padding:31px;background:linear-gradient(135deg,#fff,#faedf3)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}
.step{padding:17px;border-radius:17px;background:#fff;border:1px solid var(--line)}
.step-num{color:var(--berry);font-weight:800;font-size:13px}
.step h3{font-size:17px;margin:10px 0 5px}
.step p,.tip-card p{font-size:13px;color:var(--muted);margin:0}
.tip-card{padding:27px;display:flex;flex-direction:column;justify-content:space-between}
.progress{height:7px;background:#f1e5e9;border-radius:10px;overflow:hidden;margin:17px 0}
.progress span{display:block;width:72%;height:100%;background:linear-gradient(90deg,var(--berry),var(--coral));border-radius:10px}
.faq-wrap{padding:13px 27px}
.accordion{background:transparent;margin:0}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-title{border:0!important;background:transparent;color:var(--ink);font-weight:700;font-size:16px;padding:21px 34px 21px 0}
.accordion-title:hover{background:transparent;color:var(--berry)}
.accordion-content{border:0;background:transparent;color:var(--muted);font-size:14px;padding:0 35px 20px 0}
.cta-box{padding:36px 42px;display:flex;justify-content:space-between;align-items:center;gap:25px;background:var(--plum);color:#fff}
.cta-box p{color:rgba(255,255,255,.7);max-width:590px;margin:0}
.cta-box h2{margin-bottom:10px}
footer{padding:62px 0 24px;background:#211923;color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
footer .brand{color:#fff;margin-bottom:17px}
footer p{color:rgba(255,255,255,.6);font-size:13px;max-width:280px}
footer h3{font-size:14px;margin-bottom:15px;color:#fff}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin:8px 0}
.footer-links a{color:rgba(255,255,255,.58);font-size:13px}
.footer-links a:hover{color:var(--gold)}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;margin-top:43px;color:rgba(255,255,255,.42);font-size:12px}
@media(max-width:1024px){
 .nav-row{gap:14px}.nav-links a{padding:8px 7px}.hero-grid{gap:35px}
}
@media(max-width:768px){
 .container{width:min(100% - 28px,620px)}.nav-row{min-height:66px;flex-wrap:wrap;padding:10px 0;gap:10px}
 .brand{font-size:16px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;width:100%;order:4;padding:8px 0;flex-direction:column;align-items:stretch;background:#fff}
 .nav-links.open{display:flex}.nav-links a{text-align:center}.nav-search{order:3;flex-basis:100%;max-width:none}
 .site-header .nav-search{display:block}.hero{padding:55px 0 48px}.hero-grid,.search-board,.path-grid{grid-template-columns:1fr}
 h1{font-size:42px}.hero-profile{max-width:560px}.section{padding:64px 0}.section-head{display:block}.section-intro{margin-top:12px}
 .steps{grid-template-columns:1fr}.results-panel{padding:20px}.filter-panel{padding:20px}.cta-box{display:block;padding:30px 25px}.cta-box .button-primary{margin-top:20px}
 .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
}
@media(max-width:520px){
 .container{width:calc(100% - 24px)}h1{font-size:35px}.hero-copy{font-size:15px}
 .search-shell{height:48px;padding-left:12px}.search-submit{padding:9px 12px;font-size:13px}
 .profile-head{align-items:flex-start}.profile-follow{padding:7px 9px}.stats{gap:6px}.stat strong{font-size:18px}
 .result-item{grid-template-columns:40px minmax(0,1fr);gap:11px}.result-link{grid-column:2}.result-index{width:37px;height:37px}
 .footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}
}