/* roulang page: index */
:root{
            --ink:#241b2b;
            --ink-soft:#665c6d;
            --plum:#38213f;
            --plum-deep:#24152b;
            --coral:#e88168;
            --orange:#f3ae70;
            --cream:#fbf7f1;
            --paper:#fffdf9;
            --mist:#f1eaf0;
            --line:#e7dce5;
            --cool:#9ca8bd;
            --green:#6ca58c;
            --radius-lg:24px;
            --radius-md:16px;
            --radius-sm:10px;
            --shadow:0 18px 45px rgba(52,30,57,.09);
            --shadow-hover:0 22px 52px rgba(52,30,57,.16);
            --ease:all .25s ease;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--cream);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.8;
            overflow-x:hidden;
        }
        img{max-width:100%;display:block}
        a{color:inherit;text-decoration:none;transition:var(--ease)}
        button,input,select{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{
            outline:3px solid rgba(232,129,104,.4);
            outline-offset:3px;
        }
        .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
        .site-header{
            position:sticky;top:0;z-index:1000;
            background:rgba(251,247,241,.94);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(16px);
        }
        .nav-row{min-height:78px;display:flex;align-items:center;gap:24px}
        .brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}
        .brand-mark{
            width:35px;height:35px;border-radius:11px;background:var(--plum);
            display:grid;place-items:center;color:#fff;font-size:15px;
            box-shadow:5px 5px 0 var(--orange);
        }
        .brand:hover{color:var(--coral)}
        .main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
        .main-nav a{padding:10px 14px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:650}
        .main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--plum)}
        .phase-track{display:flex;align-items:center;gap:7px;padding-left:18px;border-left:1px solid var(--line)}
        .phase{
            min-height:32px;padding:4px 11px;border:1px solid var(--line);border-radius:999px;
            font-size:12px;line-height:1.5;color:var(--ink-soft);white-space:nowrap;
        }
        .phase.warm{border-color:#e6bd98;color:#a46138;background:#fff7ec}
        .phase.live{border-color:#dd8f7a;color:#a94e42;background:#fff0ec}
        .phase.replay{border-color:#aebbd0;color:#5a6b88;background:#f2f5fa}
        .menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:24px}
        .hero{padding:82px 0 74px;position:relative}
        .hero-grid{display:grid;grid-template-columns:5fr 7fr;align-items:center;gap:68px}
        .eyebrow,.section-kicker{
            display:inline-flex;align-items:center;gap:8px;color:var(--coral);
            font-weight:800;font-size:13px;letter-spacing:.12em;
        }
        .eyebrow::before,.section-kicker::before{content:"";width:25px;height:2px;background:var(--coral)}
        h1,h2,h3{font-weight:850;letter-spacing:-.055em;line-height:1.18;margin:0}
        h1{font-size:clamp(40px,5.2vw,68px);margin:18px 0 22px;max-width:590px}
        h1 em{font-style:normal;color:var(--coral)}
        .hero-copy{font-size:17px;color:var(--ink-soft);max-width:570px;margin:0 0 30px}
        .actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
        .btn-main,.btn-sub{
            min-height:48px;padding:11px 20px;border-radius:10px;font-weight:800;
            display:inline-flex;justify-content:center;align-items:center;border:1px solid transparent;
        }
        .btn-main{background:var(--plum);color:#fff;box-shadow:0 8px 18px rgba(56,33,63,.17)}
        .btn-main:hover{background:var(--coral);color:#fff;transform:translateY(-2px);box-shadow:0 12px 23px rgba(232,129,104,.25)}
        .btn-sub{border-color:var(--line);color:var(--plum);background:var(--paper)}
        .btn-sub:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}
        .hero-stats{display:flex;gap:30px;border-top:1px solid var(--line);padding-top:20px}
        .hero-stats strong{display:block;font-size:25px;line-height:1.2;color:var(--plum)}
        .hero-stats span{font-size:12px;color:var(--ink-soft)}
        .hero-art{min-height:430px;position:relative;transform:skewY(-2deg)}
        .art-main{
            position:absolute;inset:0 8% 0 5%;border-radius:30px;background:
            linear-gradient(135deg,rgba(56,33,63,.85),rgba(56,33,63,.18)),
            radial-gradient(circle at 68% 25%,#f4ad7b 0 8%,transparent 9%),
            linear-gradient(135deg,#e58a72 0%,#603d68 48%,#2a1b36 100%);
            overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.25)
        }
        .art-main::before{
            content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(255,255,255,.3);
            border-radius:50%;right:-80px;top:-65px;box-shadow:0 0 0 34px rgba(255,255,255,.05),0 0 0 68px rgba(255,255,255,.04)
        }
        .art-main::after{content:"";position:absolute;left:12%;bottom:18%;width:54%;height:1px;background:rgba(255,255,255,.45);box-shadow:0 -22px 0 rgba(255,255,255,.15),0 22px 0 rgba(255,255,255,.15)}
        .art-label{position:absolute;left:11%;bottom:11%;color:#fff;z-index:2}
        .art-label small{display:block;color:#f7c4a5;letter-spacing:.15em;font-size:11px}
        .art-label strong{font-size:31px;letter-spacing:-.06em}
        .art-float{
            position:absolute;background:var(--paper);border:1px solid var(--line);border-radius:15px;
            padding:15px 17px;box-shadow:var(--shadow);transform:skewY(2deg)
        }
        .float-top{right:0;top:32px}.float-bottom{left:0;bottom:28px}
        .art-float small{display:block;color:var(--ink-soft);font-size:11px}
        .art-float b{display:block;color:var(--plum);font-size:17px}
        .section{padding:90px 0}
        .section.alt{background:#f4edf2}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:35px}
        .section-head h2{font-size:clamp(29px,3.3vw,44px);margin-top:12px}
        .section-head p{max-width:520px;color:var(--ink-soft);margin:0}
        .friction-grid{display:grid;grid-template-columns:1.25fr .92fr 1.1fr .75fr;gap:14px;align-items:stretch}
        .friction-card{min-height:180px;padding:24px;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius-md);position:relative;overflow:hidden}
        .friction-card:nth-child(2){margin-top:24px}.friction-card:nth-child(3){margin-top:8px}
        .friction-card strong{display:block;font-size:20px;margin:25px 0 7px}
        .friction-card p{color:var(--ink-soft);font-size:14px;line-height:1.7;margin:0}
        .status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--coral);box-shadow:0 0 0 5px #fff0eb}
        .friction-card:nth-child(2) .status-dot{background:var(--orange);box-shadow:0 0 0 5px #fff4df}
        .friction-card:nth-child(3) .status-dot{background:var(--green);box-shadow:0 0 0 5px #eaf6f0}
        .friction-card:nth-child(4) .status-dot{background:var(--cool);box-shadow:0 0 0 5px #edf1f8}
        .solution{display:grid;grid-template-columns:245px 1fr;gap:50px}
        .stage-nav{border-right:1px solid var(--line);padding-right:28px}
        .stage-nav a{display:flex;gap:13px;align-items:center;padding:15px 0;color:var(--ink-soft);border-bottom:1px solid var(--line);font-weight:700}
        .stage-nav a span{font-size:12px;color:var(--coral);font-weight:900}
        .stage-nav a.active,.stage-nav a:hover{color:var(--plum);padding-left:8px}
        .panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:35px;box-shadow:var(--shadow)}
        .panel-top{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:25px}
        .panel h3{font-size:29px}
        .panel p{color:var(--ink-soft);max-width:650px;margin:12px 0 0}
        .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0}
        .tag{padding:5px 11px;border-radius:999px;background:var(--mist);color:var(--plum);font-size:12px;font-weight:750}
        .tag.accent{background:#fff0eb;color:#a34d40}
        .route-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
        .route-item{padding:17px;border-radius:12px;background:#faf5f8;border:1px solid #eee2eb}
        .route-item b{display:block;color:var(--plum);font-size:14px}.route-item span{font-size:12px;color:var(--ink-soft)}
        .metric-band{background:var(--plum-deep);color:#fff;border-radius:var(--radius-lg);padding:34px 38px;display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:20px;align-items:center}
        .metric-band p{color:#cdbdce;font-size:14px;margin:8px 0 0}
        .metric{padding-left:22px;border-left:1px solid rgba(255,255,255,.18)}
        .metric strong{display:block;font-size:34px;color:#f6b486;line-height:1.2}.metric span{font-size:12px;color:#d7cad8}
        .content-strip{display:grid;grid-template-columns:1.05fr 1.55fr;gap:28px}
        .feature-card{min-height:300px;background:linear-gradient(145deg,#4b2852,#26182f);border-radius:var(--radius-lg);padding:30px;color:#fff;position:relative;overflow:hidden}
        .feature-card::after{content:"";position:absolute;right:-60px;bottom:-80px;width:240px;height:240px;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 0 0 28px rgba(255,255,255,.04),0 0 0 56px rgba(255,255,255,.035)}
        .feature-card h3{font-size:29px;max-width:300px;margin:70px 0 12px;position:relative;z-index:1}.feature-card p{color:#d9cbdc;font-size:14px;position:relative;z-index:1}
        .update-list{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:12px 25px}
        .update-item{display:flex;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
        .update-item:last-child{border-bottom:0}.update-time{font-size:12px;color:var(--coral);font-weight:800;min-width:65px}.update-item h3{font-size:16px;letter-spacing:-.02em;margin:0 0 3px}.update-item p{margin:0;color:var(--ink-soft);font-size:13px}
        .voices{display:grid;grid-template-columns:1.2fr .8fr .95fr;gap:16px;align-items:start}
        .voice{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:25px;box-shadow:0 8px 22px rgba(52,30,57,.04)}
        .voice:first-child{margin-top:20px;background:#fff0eb;border-color:#f0c7bb}.voice:nth-child(3){margin-top:42px}
        .voice p{font-size:17px;line-height:1.75;margin:0 0 22px}.voice small{color:var(--ink-soft)}
        .faq-wrap{max-width:860px;margin:0 auto}.accordion-item{border:0;border-bottom:1px solid var(--line)!important;background:transparent}
        .accordion-button{background:transparent!important;color:var(--ink)!important;box-shadow:none!important;font-weight:800;padding:21px 4px;font-size:16px}
        .accordion-button::after{background-image:none;content:"+";font-size:24px;font-weight:400;color:var(--coral);width:auto;height:auto}
        .accordion-button:not(.collapsed)::after{content:"−"}.accordion-body{color:var(--ink-soft);padding:0 35px 22px 4px;font-size:14px}
        .cta{padding:65px 0}.cta-box{background:var(--coral);color:#fff;border-radius:var(--radius-lg);padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}
        .cta-box::after{content:"";position:absolute;right:8%;top:-100px;width:260px;height:260px;border:1px solid rgba(255,255,255,.25);border-radius:50%;box-shadow:0 0 0 28px rgba(255,255,255,.06)}
        .cta-box h2{font-size:34px;position:relative;z-index:1}.cta-box p{margin:10px 0 0;color:#fff2ed;position:relative;z-index:1}
        .cta-box .btn-sub{background:#fff;border-color:#fff;position:relative;z-index:2}.cta-box .btn-sub:hover{background:var(--plum);color:#fff;border-color:var(--plum)}
        .site-footer{background:var(--plum-deep);color:#fff;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:35px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.15)}
        .site-footer .brand{color:#fff;margin-bottom:15px}.footer-title{font-weight:800;margin-bottom:15px}.site-footer p,.site-footer a{color:#cbbdce;font-size:13px}.site-footer a{display:block;margin:7px 0}.site-footer a:hover{color:#f4b18d}.safe-note{padding:13px 15px;background:rgba(255,255,255,.07);border-radius:10px;font-size:12px;color:#d7cad8!important}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#9f91a5;font-size:12px}
        .floating-bar{position:fixed;right:20px;bottom:20px;z-index:900;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 9px 8px 17px;box-shadow:var(--shadow);display:flex;align-items:center;gap:15px;font-size:13px;font-weight:700}
        .floating-bar .btn-main{min-height:37px;padding:6px 14px;font-size:12px}
        @media(max-width:1100px){.phase-track{display:none}.hero-grid{gap:38px}.friction-grid{grid-template-columns:repeat(2,1fr)}.friction-card:nth-child(2),.friction-card:nth-child(3){margin-top:0}}
        @media(max-width:768px){
            .container{width:min(100% - 28px,620px)}.nav-row{min-height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:14px;right:14px;top:68px;background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.show{display:flex}.main-nav a{min-height:44px}.hero{padding:52px 0 55px}.hero-grid{grid-template-columns:1fr;gap:35px}.hero-art{min-height:330px;transform:skewY(-1deg)}h1{font-size:clamp(38px,11vw,54px)}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:15px}.solution{grid-template-columns:1fr;gap:25px}.stage-nav{display:flex;overflow-x:auto;border-right:0;padding:0;gap:18px}.stage-nav a{white-space:nowrap;border-bottom:2px solid var(--line);padding:10px 0}.stage-nav a.active{border-color:var(--coral)}.metric-band{grid-template-columns:1fr 1fr;padding:27px}.metric-band>div:first-child{grid-column:1/-1}.content-strip{grid-template-columns:1fr}.voices{grid-template-columns:1fr}.voice:first-child,.voice:nth-child(3){margin-top:0}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{display:block;padding:32px}.cta-box .btn-sub{margin-top:22px}.floating-bar{left:14px;right:14px;justify-content:space-between}}
        @media(max-width:520px){
            .brand{font-size:16px}.brand-mark{width:30px;height:30px;font-size:12px}.hero-stats{gap:18px}.hero-stats strong{font-size:21px}.hero-art{min-height:270px}.art-label strong{font-size:24px}.art-float{padding:10px 12px}.float-top{top:16px}.float-bottom{bottom:12px}.friction-grid{grid-template-columns:1fr}.friction-card{min-height:145px}.panel{padding:23px}.panel-top{display:block}.route-list{grid-template-columns:1fr}.metric-band{grid-template-columns:1fr;padding:22px}.metric-band>div:first-child{grid-column:auto}.metric{border-left:0;border-top:1px solid rgba(255,255,255,.18);padding:15px 0 0}.update-list{padding:8px 17px}.update-item{gap:10px;align-items:flex-start}.update-time{min-width:47px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}.cta-box h2{font-size:28px}.floating-bar{font-size:12px}}

/* roulang page: category2 */
:root{--ink:#241b2b;--soft:#665c6d;--plum:#38213f;--deep:#24152b;--coral:#e88168;--orange:#f3ae70;--cream:#fbf7f1;--paper:#fffdf9;--mist:#f1eaf0;--line:#e7dce5;--cool:#9ca8bd;--green:#6ca58c;--r-lg:24px;--r-md:16px;--r-sm:10px;--shadow:0 18px 45px rgba(52,30,57,.09);--hover:0 22px 52px rgba(52,30,57,.16);--ease:all .25s ease}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}a{color:inherit;text-decoration:none;transition:var(--ease)}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 rgba(232,129,104,.42);outline-offset:3px}.container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:10;background:rgba(251,247,241,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.nav-row{min-height:78px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand-mark{width:35px;height:35px;border-radius:11px;background:var(--plum);display:grid;place-items:center;color:#fff;font-size:15px;box-shadow:5px 5px 0 var(--orange)}.brand:hover{color:var(--coral)}.main-nav{display:flex;gap:4px;margin-left:auto}.main-nav a{padding:10px 14px;border-radius:9px;color:var(--soft);font-size:14px;font-weight:700}.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--plum)}.phase-line{display:flex;gap:7px;align-items:center;margin-left:8px}.phase{padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--soft);font-size:12px;white-space:nowrap}.phase.warm{border-color:#f0c995;color:#9b6a32}.phase.live{border-color:#e59a87;color:#a34d40;background:#fff0eb}.phase.cool{border-color:#bfc9da;color:#5c6f90}.menu-toggle{display:none;border:0;background:none;color:var(--plum);font-size:24px}
    .intro{padding:72px 0 42px}.intro-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:58px;align-items:end}.eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.1em}.eyebrow:before,.kicker:before{content:"";width:25px;height:2px;background:var(--coral)}h1,h2,h3{line-height:1.25;letter-spacing:-.045em}h1{font-size:clamp(36px,5vw,62px);margin:18px 0}.lead{color:var(--soft);font-size:17px;max-width:620px}.index-panel{background:var(--plum);color:#fff;border-radius:var(--r-lg);padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow)}.index-panel:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-55px;top:-75px;box-shadow:0 0 0 28px rgba(255,255,255,.05),0 0 0 56px rgba(255,255,255,.04)}.panel-top{display:flex;justify-content:space-between;position:relative;z-index:1}.panel-top small{color:#d9cbdc}.panel-number{font-size:56px;font-weight:850;line-height:1;color:var(--orange)}.panel-copy{max-width:430px;color:#e6dce8;margin:18px 0 0;position:relative;z-index:1}.bar{height:8px;border-radius:9px;background:#5b4261;margin-top:24px;overflow:hidden;position:relative;z-index:1}.bar i{display:block;width:72%;height:100%;background:var(--coral);border-radius:inherit}
    .section{padding:58px 0}.section.alt{background:#f4edf2}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-head h2{font-size:clamp(28px,3.5vw,42px);margin:12px 0 0}.section-head p{max-width:510px;color:var(--soft);margin:0}.toolbar{display:flex;gap:10px;flex-wrap:wrap;padding:14px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:24px}.toolbar label{position:absolute;width:1px;height:1px;overflow:hidden}.toolbar input,.toolbar select{border:1px solid var(--line);border-radius:9px;background:#fff;padding:9px 13px;color:var(--ink);min-height:44px}.toolbar input{flex:1;min-width:190px}.toolbar input:focus,.toolbar select:focus{border-color:var(--coral)}.btn-main,.btn-sub{min-height:44px;padding:9px 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;border:1px solid transparent}.btn-main{background:var(--plum);color:#fff;box-shadow:0 8px 18px rgba(56,33,63,.17)}.btn-main:hover{background:var(--coral);color:#fff;transform:translateY(-2px)}.btn-sub{background:var(--paper);border-color:var(--line);color:var(--plum)}.btn-sub:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}
    .feature-row{display:grid;grid-template-columns:1.3fr .7fr;gap:18px;margin-bottom:18px}.feature,.index-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);transition:var(--ease)}.feature{padding:28px;min-height:250px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(125deg,#fffdf9 55%,#f3e7ed)}.feature:hover,.index-card:hover{box-shadow:var(--hover);transform:translateY(-3px)}.feature h3{font-size:29px;margin:12px 0}.feature p,.index-card p{color:var(--soft);margin:0}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:#fff0eb;color:#a34d40;font-size:12px;font-weight:800}.badge.green{background:#eaf6f0;color:#4d806d}.badge.gray{background:#edf1f8;color:#5c6f90}.index-card{padding:22px;min-height:250px}.index-card .mark{font-size:13px;color:var(--coral);font-weight:900}.index-card h3{font-size:21px;margin:20px 0 8px}.meta{display:flex;justify-content:space-between;gap:10px;color:var(--soft);font-size:13px;margin-top:22px;border-top:1px solid var(--line);padding-top:15px}.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.index-grid .index-card:nth-child(2){margin-top:24px}.index-grid .index-card:nth-child(3){margin-top:8px}.tag-row{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0}.tag{padding:4px 10px;border-radius:999px;background:var(--mist);color:var(--plum);font-size:12px;font-weight:750}.empty{padding:25px;text-align:center;color:var(--soft);border:1px dashed #ccbcca;border-radius:var(--r-md);margin-top:18px}
    .split{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px;align-items:start}.side-note{position:sticky;top:110px}.side-note h2{font-size:34px}.side-note p{color:var(--soft)}.route{border-left:1px solid var(--line);padding-left:28px}.route-item{display:grid;grid-template-columns:80px 1fr;gap:18px;padding:0 0 28px;position:relative}.route-item:before{content:"";position:absolute;left:-34px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px var(--cream)}.route-item small{color:var(--coral);font-weight:850}.route-item h3{font-size:20px;margin:0 0 5px}.route-item p{color:var(--soft);margin:0;font-size:14px}
    .faq{max-width:850px;margin:auto}.accordion-item{background:var(--paper);border:1px solid var(--line)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden}.accordion-button{background:var(--paper)!important;color:var(--ink)!important;font-weight:800;box-shadow:none!important;padding:19px}.accordion-button:not(.collapsed){color:var(--plum)!important}.accordion-body{color:var(--soft);padding:0 19px 19px}.cta{background:var(--deep);color:#fff;border-radius:var(--r-lg);padding:38px 42px;display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{margin:0 0 8px;font-size:32px}.cta p{color:#d7cbd9;margin:0}.site-footer{padding:55px 0 20px;background:#211529;color:#e9dfea}.site-footer .brand{color:#fff}.site-footer p{color:#bcaebe;font-size:14px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:30px}.footer-title{font-weight:800;color:#fff;margin-bottom:10px}.site-footer a:not(.brand){display:block;color:#bcaebe;font-size:14px;margin:5px 0}.site-footer a:not(.brand):hover{color:var(--orange)}.safe-note{border-left:2px solid var(--coral);padding-left:13px}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #493650;margin-top:35px;padding-top:18px;color:#a995ac;font-size:12px}
    @media(max-width:992px){.phase-line{display:none}.intro-grid,.feature-row,.split{grid-template-columns:1fr}.side-note{position:static}.index-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 28px,620px)}.nav-row{min-height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:14px;right:14px;top:68px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);flex-direction:column}.main-nav.show{display:flex}.main-nav a{width:100%}.intro{padding:48px 0 28px}.section{padding:45px 0}.section-head{display:block}.section-head p{margin-top:12px}.index-grid{grid-template-columns:1fr}.index-grid .index-card:nth-child(2),.index-grid .index-card:nth-child(3){margin-top:0}.toolbar{display:grid;grid-template-columns:1fr}.toolbar input{width:100%}.cta{display:block;padding:28px 24px}.cta .btn-main{margin-top:20px;width:100%}.copyright{display:block}.copyright span{display:block;margin-top:6px}}
    @media(max-width:520px){h1{font-size:36px}.brand{font-size:17px}.brand-mark{width:31px;height:31px}.feature h3{font-size:25px}.route{padding-left:22px}.route-item{grid-template-columns:62px 1fr;gap:10px}.route-item:before{left:-28px}.footer-grid{grid-template-columns:1fr}.panel-number{font-size:45px}}

/* roulang page: category1 */
:root{
      --ink:#241b2b;--ink-soft:#665c6d;--plum:#38213f;--plum-deep:#24152b;
      --coral:#e88168;--orange:#f3ae70;--cream:#fbf7f1;--paper:#fffdf9;
      --mist:#f1eaf0;--line:#e7dce5;--cool:#9ca8bd;--green:#6ca58c;
      --radius-lg:24px;--radius-md:16px;--radius-sm:10px;
      --shadow:0 18px 45px rgba(52,30,57,.09);--shadow-hover:0 22px 52px rgba(52,30,57,.16);
      --ease:all .25s ease
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
    img{max-width:100%;display:block}a{color:inherit;text-decoration:none;transition:var(--ease)}
    button,input,select{font:inherit}h1,h2,h3,h4{font-weight:850;letter-spacing:-.045em;line-height:1.25;margin:0}p{margin-top:0}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(232,129,104,.45);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(251,247,241,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
    .nav-row{min-height:78px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.04em;white-space:nowrap}.brand:hover{color:var(--coral)}
    .brand-mark{width:35px;height:35px;border-radius:11px;background:var(--plum);display:grid;place-items:center;color:#fff;font-size:15px;box-shadow:5px 5px 0 var(--orange)}
    .main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.main-nav a{padding:10px 14px;border-radius:9px;color:var(--ink-soft);font-size:14px;font-weight:650}.main-nav a:hover,.main-nav a.active{background:var(--mist);color:var(--plum)}
    .phase-line{display:flex;align-items:center;gap:7px;padding-left:14px;border-left:1px solid var(--line);white-space:nowrap}.phase{font-size:12px;padding:4px 9px;border:1px solid var(--line);border-radius:999px;color:var(--ink-soft)}.phase.warm{background:#fff2e2;color:#9a6130;border-color:#f5d5af}.phase.live{background:#fff0eb;color:#a34d40;border-color:#f0b9ab}.phase.replay{background:#eef1f7;color:#586681;border-color:#d8dfed}.menu-toggle{display:none;background:none;border:0;color:var(--plum);font-size:25px}
    .hero{padding:74px 0 58px;position:relative}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-weight:800;font-size:13px;letter-spacing:.12em}.eyebrow::before,.section-kicker::before{content:"";width:25px;height:2px;background:var(--coral)}
    .hero h1{font-size:clamp(38px,5vw,64px);margin:16px 0 22px;max-width:650px}.hero h1 em{font-style:normal;color:var(--coral);position:relative}.hero h1 em::after{content:"";position:absolute;height:7px;left:3px;right:3px;bottom:-4px;background:var(--orange);opacity:.45;z-index:-1;border-radius:99px}.hero-copy{font-size:17px;color:var(--ink-soft);max-width:580px;margin-bottom:28px}.button-row{display:flex;flex-wrap:wrap;gap:12px}.btn-main,.btn-sub{min-height:48px;padding:11px 20px;border-radius:10px;font-weight:800;display:inline-flex;justify-content:center;align-items:center;border:1px solid transparent;transition:var(--ease)}.btn-main{background:var(--plum);color:#fff;box-shadow:0 8px 18px rgba(56,33,63,.17)}.btn-main:hover{background:var(--coral);color:#fff;transform:translateY(-2px);box-shadow:0 12px 23px rgba(232,129,104,.25)}.btn-sub{border-color:var(--line);color:var(--plum);background:var(--paper)}.btn-sub:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}
    .hero-panel{min-height:390px;border-radius:30px;background:var(--plum);padding:28px;position:relative;overflow:hidden;box-shadow:var(--shadow);color:#fff}.hero-panel::before{content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:-90px;top:-75px;box-shadow:0 0 0 32px rgba(255,255,255,.04),0 0 0 64px rgba(255,255,255,.035)}.hero-panel::after{content:"";position:absolute;inset:auto 0 0;height:42%;background:linear-gradient(0deg,rgba(23,12,28,.5),transparent)}.sticker{position:absolute;right:25px;top:25px;width:88px;height:88px;border-radius:50%;background:var(--orange);color:var(--plum-deep);display:grid;place-items:center;text-align:center;font-size:13px;font-weight:900;line-height:1.35;transform:rotate(9deg);z-index:2}.panel-caption{position:absolute;left:29px;bottom:27px;z-index:2}.panel-caption small{color:#f5cfbd}.panel-caption h2{font-size:30px;margin-top:6px}.panel-grid{position:absolute;inset:95px 30px 105px;display:grid;grid-template-columns:1.4fr .8fr;grid-template-rows:1fr 1fr;gap:11px;z-index:1}.visual-card{border:1px solid rgba(255,255,255,.2);border-radius:15px;background:linear-gradient(135deg,rgba(232,129,104,.75),rgba(255,255,255,.08));padding:16px;display:flex;flex-direction:column;justify-content:space-between}.visual-card:nth-child(2){background:linear-gradient(135deg,rgba(243,174,112,.75),rgba(255,255,255,.06));grid-row:span 2}.visual-card:nth-child(3){background:linear-gradient(135deg,rgba(108,165,140,.65),rgba(255,255,255,.05))}.visual-card b{font-size:18px}.visual-card span{font-size:12px;color:#fff1e9}
    .section{padding:82px 0}.section.alt{background:#f4edf2}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}.section-head h2{font-size:clamp(29px,3.3vw,44px);margin-top:11px}.section-head p{max-width:520px;color:var(--ink-soft);margin:0}.status-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 5px #fff0eb}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:19px 0}.tag{padding:5px 11px;border-radius:999px;background:var(--mist);color:var(--plum);font-size:12px;font-weight:750}.tag.accent{background:#fff0eb;color:#a34d40}
    .friction-grid{display:grid;grid-template-columns:1.25fr .92fr 1.1fr .75fr;gap:14px;align-items:stretch}.friction-card{min-height:180px;padding:23px;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius-md);position:relative;overflow:hidden}.friction-card:nth-child(2){margin-top:24px}.friction-card:nth-child(3){margin-top:8px}.friction-card strong{display:block;font-size:20px;margin:25px 0 7px}.friction-card p{color:var(--ink-soft);font-size:14px;line-height:1.7;margin:0}.friction-card:nth-child(2) .status-dot{background:var(--orange);box-shadow:0 0 0 5px #fff4df}.friction-card:nth-child(3) .status-dot{background:var(--green);box-shadow:0 0 0 5px #eaf6f0}.friction-card:nth-child(4) .status-dot{background:var(--cool);box-shadow:0 0 0 5px #edf1f8}
    .index-layout{display:grid;grid-template-columns:230px 1fr;gap:45px}.stage-nav{border-right:1px solid var(--line);padding-right:28px}.stage-nav a{display:flex;gap:13px;align-items:center;padding:15px 0;color:var(--ink-soft);border-bottom:1px solid var(--line);font-weight:700}.stage-nav a span{font-size:12px;color:var(--coral);font-weight:900}.stage-nav a.active,.stage-nav a:hover{color:var(--plum);padding-left:8px}.route-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}.route-panel h3{font-size:28px}.route-panel>p{color:var(--ink-soft);max-width:650px}.route-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.route-item{padding:17px;border-radius:12px;background:#faf5f8;border:1px solid #eee2eb}.route-item b{display:block;color:var(--plum);margin-bottom:4px}.route-item span{font-size:13px;color:var(--ink-soft)}
    .data-band{display:grid;grid-template-columns:1.2fr .8fr .8fr 1.1fr;gap:0;background:var(--plum-deep);border-radius:var(--radius-lg);overflow:hidden;color:#fff}.data-cell{padding:27px 25px;border-right:1px solid rgba(255,255,255,.15)}.data-cell:last-child{border:0}.data-cell strong{display:block;font-size:31px;color:var(--orange);line-height:1.2}.data-cell span{display:block;color:#d9cbdc;font-size:13px;margin-top:6px}.signal{display:flex;align-items:center;gap:8px;margin-top:17px;font-size:13px;color:#f7d6c9}.signal i{width:8px;height:8px;background:var(--green);border-radius:50%}
    .feature-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:55px;align-items:start}.feature-note{padding:28px 0;border-top:2px solid var(--plum)}.feature-note h3{font-size:27px}.feature-note p{color:var(--ink-soft);max-width:440px}.quality-stack{display:grid;gap:13px}.quality-item{display:grid;grid-template-columns:54px 1fr auto;gap:15px;align-items:center;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--paper);transition:var(--ease)}.quality-item:hover{transform:translateX(5px);box-shadow:var(--shadow-hover);border-color:#d6bdce}.quality-num{width:42px;height:42px;border-radius:12px;background:var(--mist);color:var(--plum);display:grid;place-items:center;font-weight:900}.quality-item h4{font-size:17px}.quality-item p{font-size:13px;color:var(--ink-soft);margin:3px 0 0;line-height:1.6}.quality-item em{font-style:normal;font-size:12px;color:var(--coral);font-weight:800}
    .review-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}.review-main,.review-small{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}.review-main{min-height:220px;display:flex;flex-direction:column;justify-content:space-between}.review-main blockquote{font-size:24px;line-height:1.5;font-weight:750;margin:0;max-width:700px}.review-meta{display:flex;gap:12px;align-items:center;color:var(--ink-soft);font-size:13px}.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--coral),var(--orange));display:grid;place-items:center;color:#fff;font-weight:900}.review-side{display:grid;gap:16px}.review-small{padding:22px}.review-small p{font-size:15px;margin:0 0 12px}.review-small small{color:var(--ink-soft)}
    .faq-list{max-width:850px;margin:0 auto}.accordion-item{background:var(--paper);border:1px solid var(--line)!important;border-radius:var(--radius-sm)!important;margin-bottom:10px;overflow:hidden}.accordion-button{background:var(--paper);color:var(--ink);font-weight:750;padding:19px 22px;box-shadow:none!important}.accordion-button:not(.collapsed){background:#f8eff3;color:var(--plum)}.accordion-button::after{filter:hue-rotate(250deg)}.accordion-body{padding:0 22px 20px;color:var(--ink-soft);font-size:14px}.accordion-button:focus{border-color:var(--coral)}
    .cta{padding:30px;background:var(--plum);border-radius:var(--radius-lg);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}.cta::after{content:"";position:absolute;width:230px;height:230px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:-45px;top:-100px}.cta h2{font-size:31px;position:relative;z-index:1}.cta p{color:#d9cbdc;margin:8px 0 0;position:relative;z-index:1}.cta .btn-main{background:var(--orange);color:var(--plum-deep);position:relative;z-index:1;white-space:nowrap}.cta .btn-main:hover{background:#fff;color:var(--plum)}
    .site-footer{background:#211528;color:#fff;padding:60px 0 25px}.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1.3fr;gap:35px}.site-footer .brand{color:#fff}.site-footer .brand:hover{color:var(--orange)}.site-footer p{color:#cbbdcd;font-size:14px;margin:18px 0 0;line-height:1.8}.footer-title{font-weight:800;color:var(--orange);margin-bottom:13px}.site-footer .footer-grid a:not(.brand){display:block;color:#cbbdcd;font-size:14px;margin:7px 0}.site-footer .footer-grid a:not(.brand):hover{color:#fff;padding-left:4px}.safe-note{font-size:13px!important;margin-top:0!important}.copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:42px;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#aa9bad;font-size:12px}
    @media(max-width:1100px){.phase-line{display:none}.hero-grid{gap:38px}.friction-grid{grid-template-columns:repeat(2,1fr)}.friction-card:nth-child(n){margin-top:0}.data-band{grid-template-columns:repeat(2,1fr)}.data-cell:nth-child(2){border-right:0}.data-cell:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.15)}}
    @media(max-width:768px){.container{width:min(100% - 30px,600px)}.nav-row{min-height:68px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:15px;right:15px;top:74px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{min-height:44px}.hero{padding:52px 0 35px}.hero-grid,.feature-layout,.review-layout{grid-template-columns:1fr;gap:30px}.hero h1{font-size:42px}.hero-panel{min-height:340px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:13px}.index-layout{grid-template-columns:1fr;gap:25px}.stage-nav{border-right:0;border-bottom:1px solid var(--line);padding:0;display:flex;overflow-x:auto;gap:22px}.stage-nav a{white-space:nowrap;border-bottom:0}.route-list{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.cta{display:block}.cta .btn-main{margin-top:20px}}
    @media(max-width:520px){.hero h1{font-size:35px}.hero-copy{font-size:15px}.button-row>*{width:100%}.friction-grid,.route-list,.data-band{grid-template-columns:1fr}.data-cell{border-right:0!important;border-bottom:1px solid rgba(255,255,255,.15)}.data-cell:last-child{border-bottom:0}.hero-panel{min-height:300px;padding:20px}.panel-grid{inset:75px 20px 87px}.panel-caption{left:20px;bottom:20px}.panel-caption h2{font-size:23px}.sticker{width:70px;height:70px;right:18px;top:18px;font-size:11px}.review-main,.review-small,.route-panel{padding:22px}.review-main blockquote{font-size:20px}.quality-item{grid-template-columns:44px 1fr}.quality-item em{grid-column:2}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}.cta h2{font-size:25px}}