/* roulang page: index */
:root{
            --color-bg:#f3f0f1;
            --color-surface:#fffdfc;
            --color-surface-alt:#ebe5e7;
            --color-primary:#271d2d;
            --color-secondary:#5d4058;
            --color-accent:#c87983;
            --color-accent-soft:#f0d9dc;
            --color-text:#282329;
            --color-muted:#756d75;
            --color-border:#ddd3d8;
            --shadow-soft:0 18px 45px rgba(47,31,45,.09);
            --shadow-focus:0 0 0 4px rgba(200,121,131,.22);
            --radius-sm:8px;
            --radius-md:16px;
            --radius-lg:25px;
            --container-width:1180px;
            --section-space:104px;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--color-text);
            background:var(--color-bg);
            font-family:"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif;
            line-height:1.75;
            -webkit-font-smoothing:antialiased;
        }
        a{color:inherit;text-decoration:none;transition:.25s ease}
        a:hover{color:var(--color-accent)}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible{outline:none;box-shadow:var(--shadow-focus)}
        .container{max-width:var(--container-width);padding-left:24px;padding-right:24px}
        .site-header{
            position:sticky;top:0;z-index:50;
            background:rgba(255,253,252,.94);
            border-bottom:1px solid var(--color-border);
            backdrop-filter:blur(12px);
        }
        .nav-shell{min-height:76px;display:flex;align-items:center;gap:30px}
        .brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
        .brand-mark{width:27px;height:27px;border:1.5px solid var(--color-secondary);border-radius:50%;position:relative}
        .brand-mark::after{content:"";position:absolute;width:14px;height:14px;border-radius:50%;background:var(--color-accent-soft);left:8px;top:3px}
        .brand small{display:block;color:var(--color-muted);font-size:10px;letter-spacing:.16em;font-weight:600}
        .nav-links{display:flex;align-items:center;gap:27px;margin-left:auto}
        .nav-link{position:relative;color:var(--color-muted);font-size:14px;padding:25px 0}
        .nav-link::after{content:"";position:absolute;height:2px;width:0;left:0;bottom:17px;background:var(--color-accent);transition:.25s}
        .nav-link:hover,.nav-link.active{color:var(--color-primary)}
        .nav-link:hover::after,.nav-link.active::after{width:100%}
        .nav-cta,.btn-main,.btn-lightline{
            border:1px solid transparent;border-radius:999px;padding:11px 19px;
            font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;
            transition:.25s ease;
        }
        .nav-cta,.btn-main{background:var(--color-primary);color:#fff}
        .nav-cta:hover,.btn-main:hover{background:var(--color-secondary);color:#fff;transform:translateY(-2px)}
        .btn-lightline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
        .btn-lightline:hover{background:#fff;color:var(--color-primary)}
        .navbar-toggler{border:1px solid var(--color-border);padding:8px 11px}
        .navbar-toggler:focus{box-shadow:var(--shadow-focus)}
        .hero{
            color:#fff;background:var(--color-primary);position:relative;overflow:hidden;
            padding:94px 0 82px;
        }
        .hero::before,.hero::after{content:"";position:absolute;pointer-events:none}
        .hero::before{width:480px;height:480px;border:1px solid rgba(240,217,220,.13);border-radius:50%;right:-100px;top:-180px}
        .hero::after{inset:0;opacity:.12;background-image:linear-gradient(115deg,transparent 49%,#f0d9dc 50%,transparent 51%),linear-gradient(25deg,transparent 49%,#f0d9dc 50%,transparent 51%);background-size:90px 90px}
        .hero .container{position:relative;z-index:1}
        .eyebrow,.section-kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--color-accent);font-weight:800}
        .hero h1{font-size:clamp(38px,5.2vw,72px);line-height:1.12;letter-spacing:-.065em;margin:18px 0 22px;max-width:720px}
        .hero-copy{font-size:17px;color:#d9d0d8;max-width:650px;margin-bottom:30px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:70px;align-items:center}
        .hero-panel{border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-lg);padding:24px;background:rgba(255,255,255,.055);box-shadow:0 24px 70px rgba(0,0,0,.18)}
        .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:18px;margin-bottom:20px}
        .status-dot{width:8px;height:8px;background:var(--color-accent);border-radius:50%;display:inline-block;margin-right:8px}
        .hero-panel h3{font-size:21px;margin:0 0 8px}
        .hero-panel p{font-size:13px;color:#c9bec8;margin:0}
        .index-row{display:flex;align-items:center;gap:13px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
        .index-no{color:var(--color-accent);font-family:Georgia,serif;font-size:22px}
        .index-row strong{font-size:14px;font-weight:600}
        .index-row span{display:block;color:#a99ea8;font-size:12px}
        .mini-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
        .tag,.badge-soft{display:inline-flex;border:1px solid var(--color-border);border-radius:999px;padding:4px 10px;font-size:12px;color:var(--color-muted);background:rgba(255,255,255,.45)}
        .hero-panel .tag{color:#d9cbd4;border-color:rgba(255,255,255,.18);background:transparent}
        section{padding:var(--section-space) 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:38px}
        .section-head h2{font-size:clamp(28px,3.5vw,44px);line-height:1.2;letter-spacing:-.045em;margin:10px 0 0}
        .section-head p{max-width:460px;color:var(--color-muted);margin:0}
        .needs{background:var(--surface-alt)}
        .need-track{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:0;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}
        .need-item{padding:28px 25px;min-height:190px;border-right:1px solid var(--color-border)}
        .need-item:last-child{border-right:0}
        .need-no{font-size:13px;color:var(--color-accent);font-weight:800;letter-spacing:.1em}
        .need-item h3{font-size:20px;margin:20px 0 8px}
        .need-item p{font-size:14px;color:var(--color-muted);margin:0}
        .category-band{background:var(--color-surface)}
        .category-layout{display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:stretch}
        .feature-category{background:var(--color-primary);color:#fff;border-radius:var(--radius-lg);padding:34px;display:flex;flex-direction:column;justify-content:space-between;min-height:330px;position:relative;overflow:hidden}
        .feature-category::after{content:"69";position:absolute;right:18px;bottom:-36px;font:180px/1 Georgia,serif;color:rgba(255,255,255,.06)}
        .feature-category h3{font-size:32px;line-height:1.25;max-width:320px;margin:20px 0 12px;position:relative;z-index:1}
        .feature-category p{color:#cfc3ce;font-size:14px;max-width:350px;position:relative;z-index:1}
        .category-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .category-card{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:22px;background:#fff;display:flex;flex-direction:column;justify-content:space-between;min-height:157px}
        .category-card:hover{border-color:var(--color-accent);transform:translateY(-3px);box-shadow:var(--shadow-soft)}
        .category-card h3{font-size:18px;margin:12px 0 5px}
        .category-card p{font-size:13px;color:var(--color-muted);margin:0}
        .resource-section{background:var(--color-bg)}
        .resource-layout{display:grid;grid-template-columns:8fr 4fr;gap:30px}
        .resource-main{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:28px}
        .resource-main h3{font-size:26px;margin:0 0 20px}
        .resource-item{display:grid;grid-template-columns:62px 1fr auto;gap:17px;align-items:center;padding:19px 0;border-top:1px solid var(--color-border)}
        .resource-number{font:28px Georgia,serif;color:var(--color-accent)}
        .resource-item h4{font-size:16px;margin:0 0 4px}
        .resource-item p{font-size:13px;color:var(--color-muted);margin:0}
        .resource-aside{background:var(--color-secondary);color:#fff;border-radius:var(--radius-lg);padding:28px}
        .resource-aside h3{font-size:23px;margin:13px 0}
        .resource-aside p{font-size:14px;color:#e1d6df}
        .aside-line{padding:15px 0;border-top:1px solid rgba(255,255,255,.2);font-size:14px}
        .result-strip{background:var(--color-primary);color:#fff}
        .result-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr;gap:0}
        .result{padding:15px 24px;border-left:1px solid rgba(255,255,255,.17)}
        .result strong{display:block;font-size:28px;line-height:1.25;color:#f0d9dc}
        .result span{font-size:13px;color:#cfc3ce}
        .feedback{background:var(--color-surface)}
        .quote-box{display:grid;grid-template-columns:2fr 1fr;gap:50px;align-items:center;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border);padding:42px 0}
        blockquote{font-size:clamp(22px,3vw,36px);line-height:1.45;letter-spacing:-.04em;margin:0}
        .quote-meta{border-left:2px solid var(--color-accent);padding-left:22px;color:var(--color-muted);font-size:14px}
        .quote-meta strong{display:block;color:var(--color-text);font-size:16px;margin-bottom:6px}
        .updates{background:var(--surface-alt)}
        .update-layout{display:grid;grid-template-columns:5fr 7fr;gap:50px}
        .update-note{color:var(--color-muted);font-size:15px}
        .update-list{border-top:1px solid var(--color-border)}
        .update-list a{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid var(--color-border);font-size:15px}
        .update-list time{color:var(--color-muted);font-size:12px;white-space:nowrap}
        .faq-section{background:var(--color-bg)}
        .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--color-border)}
        .accordion-button{background:transparent!important;color:var(--color-text)!important;box-shadow:none!important;padding:23px 4px;font-weight:700}
        .accordion-button::after{filter:grayscale(1)}
        .accordion-body{color:var(--color-muted);font-size:14px;padding:0 35px 23px 4px}
        .cta-section{padding-top:40px;padding-bottom:100px}
        .cta-box{background:var(--color-secondary);border-radius:var(--radius-lg);color:#fff;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-box h2{font-size:clamp(25px,3vw,38px);margin:0 0 10px}
        .cta-box p{color:#e2d7df;margin:0;max-width:620px;font-size:14px}
        .site-footer{background:var(--color-primary);color:#cfc3ce;padding:48px 0 26px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:45px;padding-bottom:38px}
        .footer-brand{color:#fff;font-size:18px}
        .footer-grid h3{font-size:13px;color:#fff;margin:0 0 15px}
        .footer-grid a,.footer-grid p{display:block;color:#b4a8b3;font-size:13px;margin:7px 0}
        .footer-grid a:hover{color:#fff}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#958895}
        .age-note{font-size:12px;color:#958895;max-width:290px}
        .age-modal{position:fixed;inset:0;background:rgba(22,15,24,.78);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
        .age-dialog{max-width:480px;background:var(--color-surface);border-radius:var(--radius-lg);padding:36px;box-shadow:0 24px 80px rgba(0,0,0,.3)}
        .age-dialog h2{font-size:28px;margin:15px 0 10px}
        .age-dialog p{font-size:14px;color:var(--color-muted)}
        .age-actions{display:flex;gap:10px;margin-top:24px}
        .btn-exit{border:1px solid var(--color-border);background:transparent;border-radius:999px;padding:11px 18px;color:var(--color-muted)}
        @media (max-width:991px){
            :root{--section-space:78px}
            .hero-grid,.category-layout,.resource-layout,.update-layout{grid-template-columns:1fr}
            .hero-grid{gap:35px}.nav-links{gap:17px}.nav-cta{padding:9px 14px}
            .result-grid{grid-template-columns:1fr 1fr}.result{padding:18px 15px}
            .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
            .footer-grid>div:last-child{grid-column:1/-1}
        }
        @media (max-width:767px){
            .nav-shell{min-height:68px}.nav-links{padding:12px 0 18px;align-items:stretch;gap:0}
            .nav-link{padding:12px 0}.nav-link::after{bottom:5px}.nav-cta{margin-top:8px}
            .hero{padding:67px 0 60px}.hero-copy{font-size:15px}
            .need-track,.category-list{grid-template-columns:1fr}
            .need-item{border-right:0;border-bottom:1px solid var(--color-border);min-height:auto;padding:23px}
            .need-item:last-child{border-bottom:0}
            .resource-item{grid-template-columns:42px 1fr}.resource-item .btn-main{grid-column:2;justify-self:start;padding:8px 14px}
            .quote-box{grid-template-columns:1fr;gap:25px;padding:30px 0}
            .cta-box{padding:32px 25px;display:block}.cta-box .btn-lightline{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-bottom{display:block}.footer-bottom .age-note{margin-top:12px}
        }
        @media (max-width:575px){
            .container{padding-left:18px;padding-right:18px}
            .section-head{display:block;margin-bottom:26px}.section-head p{margin-top:13px}
            .hero h1{font-size:39px}.hero-actions>*{width:100%}
            .hero-panel{padding:20px}.feature-category{min-height:300px;padding:26px}
            .result-grid{grid-template-columns:1fr 1fr}
            .result strong{font-size:22px}.result span{font-size:12px}
            .footer-grid{grid-template-columns:1fr}.age-dialog{padding:28px 22px}
            .age-actions>*{flex:1}
        }

/* roulang page: category1 */
:root{--color-bg:#f3f0f1;--color-surface:#fffdfc;--color-surface-alt:#ebe5e7;--color-primary:#271d2d;--color-secondary:#5d4058;--color-accent:#c87983;--color-accent-soft:#f0d9dc;--color-text:#282329;--color-muted:#756d75;--color-border:#ddd3d8;--shadow-soft:0 18px 45px rgba(47,31,45,.09);--shadow-focus:0 0 0 4px rgba(200,121,131,.22);--radius-sm:8px;--radius-md:16px;--radius-lg:25px;--container-width:1180px;--section-space:82px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:.25s ease}a:hover{color:var(--color-accent)}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:0;box-shadow:var(--shadow-focus)}.container{max-width:var(--container-width);padding-left:24px;padding-right:24px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,252,.95);border-bottom:1px solid var(--color-border);backdrop-filter:blur(12px)}.nav-shell{min-height:76px;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand-mark{width:27px;height:27px;border:1.5px solid var(--color-secondary);border-radius:50%;position:relative}.brand-mark:after{content:"";position:absolute;width:14px;height:14px;border-radius:50%;background:var(--color-accent-soft);left:8px;top:3px}.brand small{display:block;color:var(--color-muted);font-size:10px;letter-spacing:.16em;font-weight:600}.nav-links{display:flex;align-items:center;gap:27px;margin-left:auto}.nav-link{position:relative;color:var(--color-muted);font-size:14px;padding:25px 0}.nav-link:after{content:"";position:absolute;height:2px;width:0;left:0;bottom:17px;background:var(--color-accent);transition:.25s}.nav-link:hover,.nav-link.active{color:var(--color-primary)}.nav-link:hover:after,.nav-link.active:after{width:100%}.nav-cta,.btn-main,.btn-lightline{border:1px solid transparent;border-radius:999px;padding:11px 19px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s}.nav-cta,.btn-main{background:var(--color-primary);color:#fff}.nav-cta:hover,.btn-main:hover{background:var(--color-secondary);color:#fff;transform:translateY(-2px)}.btn-lightline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}.btn-lightline:hover{background:#fff;color:var(--color-primary)}.navbar-toggler{border:1px solid var(--color-border);padding:8px 11px}.navbar-toggler:focus{box-shadow:var(--shadow-focus)}.hero{background:var(--color-primary);color:#fff;padding:68px 0 70px;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:600px;height:600px;border:1px solid rgba(240,217,220,.14);border-radius:50%;right:-180px;top:-290px}.hero:after{content:"";position:absolute;inset:0;opacity:.11;background-image:linear-gradient(115deg,transparent 49%,#f0d9dc 50%,transparent 51%),linear-gradient(25deg,transparent 49%,#f0d9dc 50%,transparent 51%);background-size:92px 92px}.hero .container{position:relative;z-index:1}.eyebrow,.section-kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--color-accent);font-weight:800}.hero h1{font-size:clamp(36px,5vw,64px);line-height:1.14;letter-spacing:-.06em;margin:16px 0 20px;max-width:760px}.hero p{max-width:700px;color:#d8ced7;font-size:17px;margin:0}.crumb{font-size:13px;color:#a99ea8;margin-bottom:25px}.crumb a{color:#e7dbe3}.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.tag,.badge-soft{display:inline-flex;align-items:center;border:1px solid var(--color-border);border-radius:999px;padding:4px 10px;font-size:12px;color:var(--color-muted);background:rgba(255,255,255,.45)}.hero .tag{color:#e3d5df;border-color:rgba(255,255,255,.2);background:transparent}.workspace{padding:72px 0}.filter-panel{background:var(--color-primary);color:#fff;border-radius:var(--radius-lg);padding:26px;position:sticky;top:102px}.filter-panel h2{font-size:21px;margin:0 0 20px}.filter-label{font-size:12px;color:#cdbfca;display:block;margin:17px 0 7px}.form-control,.form-select{border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text);padding:11px 13px}.filter-panel .form-control,.filter-panel .form-select{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff}.filter-panel .form-select option{color:var(--color-text)}.filter-submit{width:100%;margin-top:20px;border:0;border-radius:999px;padding:11px;background:var(--color-accent);color:#fff;font-weight:700}.filter-submit:hover{background:#d88f98}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section-head h2{font-size:clamp(28px,3.5vw,43px);line-height:1.2;letter-spacing:-.045em;margin:9px 0 0}.section-head p{max-width:470px;color:var(--color-muted);margin:0}.content-board{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;margin-bottom:18px}.feature-card,.list-card,.path-card,.related-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:.25s;box-shadow:0 8px 25px rgba(47,31,45,.03)}.feature-card{padding:30px;min-height:300px;background:var(--color-secondary);color:#fff;position:relative;overflow:hidden}.feature-card:after{content:"69";position:absolute;right:18px;bottom:-48px;font:190px/1 Georgia,serif;color:rgba(255,255,255,.08)}.feature-card>*{position:relative;z-index:1}.feature-card h3{font-size:29px;line-height:1.3;max-width:390px;margin:22px 0 12px}.feature-card p{color:#e1d5df;max-width:440px;font-size:14px}.list-stack{display:grid;gap:18px}.list-card{padding:23px;display:flex;gap:18px;align-items:flex-start}.list-card:hover,.path-card:hover,.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft);border-color:#c9aeb5}.number{min-width:35px;height:35px;border-radius:50%;display:grid;place-items:center;background:var(--color-accent-soft);color:var(--color-secondary);font-weight:800;font-size:13px}.list-card h3{font-size:18px;margin:0 0 5px}.list-card p{color:var(--color-muted);font-size:13px;margin:0}.meta{font-size:12px;color:var(--color-muted);margin-top:10px}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.path-card{padding:22px}.path-card strong{font-size:15px}.path-card p{font-size:13px;color:var(--color-muted);margin:9px 0 0}.related{background:var(--color-surface-alt);padding:var(--section-space) 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