/* roulang page: index */
:root{
  --plum:#28152f;
  --plum-2:#3d2047;
  --plum-3:#65356d;
  --coral:#f47d62;
  --coral-dark:#d95e49;
  --mint:#cce9d9;
  --cream:#fffaf3;
  --paper:#f7f3f0;
  --ink:#241c26;
  --muted:#746b76;
  --line:#e7dfe3;
  --white:#fff;
  --shadow:0 18px 45px rgba(45,24,48,.11);
  --shadow-soft:0 8px 24px rgba(45,24,48,.07);
  --radius:18px;
  --radius-sm:12px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
.navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
.brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
.main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
.main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
.nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
.nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
.hero{background:var(--plum);color:#fff;overflow:hidden;padding:76px 0 96px;position:relative}
.hero:after{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(204,233,217,.18);border-radius:50%;right:-180px;top:-160px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:80px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
.hero h1{font-size:clamp(34px,4.4vw,62px);line-height:1.16;letter-spacing:-.04em;margin:20px 0 22px;max-width:700px}
.hero h1 em{font-style:normal;color:var(--coral)}
.hero-copy{font-size:18px;color:#dfd3e1;max-width:620px;line-height:1.85}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:31px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
.btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
.btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
.btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
.hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:#bcaabe;font-size:13px}
.hero-note span{display:flex;gap:7px;align-items:center}.hero-note i{width:7px;height:7px;border-radius:50%;background:var(--mint)}
.app-panel{background:#fff;color:var(--ink);border-radius:24px;padding:25px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.panel-label{font-size:12px;color:var(--muted);font-weight:700}.panel-dot{width:10px;height:10px;background:var(--mint);border-radius:50%;box-shadow:0 0 0 5px #eff8f2}
.app-preview{border-radius:18px;background:linear-gradient(145deg,#f5e9f3,#fff4ed);padding:20px;min-height:240px;position:relative;overflow:hidden}
.app-preview:before{content:"PG";font-size:130px;font-weight:900;color:rgba(101,53,109,.09);position:absolute;right:-8px;bottom:-42px}
.preview-icon{width:54px;height:54px;border-radius:17px;background:var(--plum-2);color:var(--coral);display:grid;place-items:center;font-size:26px;font-weight:900;position:relative}
.app-preview h3{font-size:22px;margin:17px 0 3px;position:relative}.app-preview p{color:var(--muted);font-size:13px;position:relative}
.preview-tags{display:flex;gap:8px;margin-top:25px;position:relative}.preview-tags span{font-size:12px;padding:5px 9px;background:#fff;border-radius:7px;color:var(--plum-2);font-weight:700}
.preview-status{display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(101,53,109,.12);margin-top:23px;padding-top:16px;font-size:12px;color:var(--muted);position:relative}
.status-mark{color:#4d8e69;font-weight:800}
.section{padding:86px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}.section-head h2{font-size:34px;line-height:1.25;margin-top:10px;letter-spacing:-.03em}.section-head p{color:var(--muted);max-width:470px}
.entry-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:18px}
.entry-large,.entry-small{border-radius:var(--radius);padding:30px;position:relative;overflow:hidden;transition:.25s}
.entry-large{min-height:285px;background:var(--plum-2);color:#fff;display:flex;flex-direction:column;justify-content:end}
.entry-large:after{content:"✦";font-size:180px;position:absolute;right:32px;top:7px;color:rgba(204,233,217,.12)}
.entry-small{min-height:133px;background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
.entry-small.download{background:var(--mint)}
.entry-large:hover,.entry-small:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft)}
.entry-layout>div:last-child{display:grid;gap:18px}.entry-icon{font-size:24px;margin-bottom:12px}.entry-large h3,.entry-small h3{font-size:23px;margin-bottom:7px}.entry-small h3{font-size:19px}.entry-large p,.entry-small p{font-size:14px;color:var(--muted)}.entry-large p{color:#d9c9dc;max-width:470px}.arrow{position:absolute;right:25px;bottom:23px;font-size:22px;color:var(--coral)}
.news-section{background:var(--cream)}
.news-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.feature-news{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;justify-content:space-between;min-height:310px;box-shadow:var(--shadow-soft)}
.news-meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px;flex-wrap:wrap}.badge{display:inline-flex;padding:4px 9px;border-radius:6px;background:#f9ded6;color:#a84e3f;font-weight:800;font-size:12px}
.feature-news h3{font-size:25px;line-height:1.4;margin:17px 0 10px}.feature-news p{color:var(--muted);font-size:14px}.text-link{color:var(--plum-3);font-weight:800;font-size:14px;margin-top:22px;display:inline-block}.text-link:hover{color:var(--coral-dark)}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:1fr auto;gap:14px;padding:17px 0;border-bottom:1px solid var(--line);transition:.2s}.news-item:hover h3{color:var(--coral-dark)}.news-item h3{font-size:16px;line-height:1.45;transition:.2s}.news-item p{font-size:13px;color:var(--muted);margin-top:4px}.news-date{color:var(--muted);font-size:12px;white-space:nowrap}.empty-state{padding:28px;border:1px dashed #cbbbc8;border-radius:14px;color:var(--muted);background:#fff}
.process{background:#fff}.process-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);padding-top:27px}.step{padding:0 26px 0 0;position:relative}.step:not(:last-child):after{content:"→";position:absolute;right:18px;top:0;color:var(--coral);font-size:22px}.step-no{color:var(--coral);font-size:14px;font-weight:900;letter-spacing:.08em}.step h3{font-size:18px;margin:12px 0 8px}.step p{color:var(--muted);font-size:14px}
.download-section{padding-top:30px}.download-box{background:var(--mint);border-radius:24px;padding:42px 48px;display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;position:relative;overflow:hidden}.download-box:after{content:"APP";position:absolute;right:35px;bottom:-38px;font-size:130px;font-weight:900;color:rgba(61,32,71,.07)}.download-box>*{position:relative;z-index:1}.download-box h2{font-size:32px;margin:9px 0}.download-box p{color:#52655b;max-width:670px}.download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.device-note{font-size:12px;color:#65786d;margin-top:13px}.download-box .btn-primary{background:var(--plum);color:#fff}.download-box .btn-primary:hover{background:var(--plum-3)}
.guide-strip{display:grid;grid-template-columns:1fr 1.55fr;gap:50px;align-items:center}.guide-copy h2{font-size:32px;margin:10px 0}.guide-copy p{color:var(--muted)}.guide-links{display:grid;grid-template-columns:1fr 1fr;gap:0 28px;border-top:1px solid var(--line)}.guide-link{padding:18px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:15px}.guide-link strong{font-size:16px}.guide-link small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.guide-link b{color:var(--coral);font-size:20px}
.faq-section{background:#f0e9ef}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-intro h2{font-size:34px;margin:10px 0}.faq-intro p{color:var(--muted)}.faq-list{border-top:1px solid #d7cbd5}.faq-item{border-bottom:1px solid #d7cbd5}.faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}.faq-question span:last-child{color:var(--coral);font-size:22px}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta{padding:72px 0;background:var(--plum);color:#fff;text-align:center}.cta h2{font-size:35px;margin:10px 0 12px}.cta p{color:#d8cadb;margin:auto;max-width:650px}.cta .btn{margin-top:24px}
.site-footer{background:#1d1421;color:#fff;padding:52px 0 22px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:60px;padding-bottom:42px}.footer-brand p{color:#b9aabb;font-size:14px;max-width:350px;margin-top:15px}.footer-title{font-size:14px;margin-bottom:15px;color:var(--mint)}.footer-links{list-style:none;display:grid;gap:8px}.footer-links a{font-size:13px;color:#b9aabb;transition:.2s}.footer-links a:hover{color:var(--coral)}.copyright{border-top:1px solid #382a3d;padding-top:18px;color:#88788b;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
:focus-visible{outline:3px solid rgba(244,125,98,.65);outline-offset:3px}
@media(max-width:992px){.main-nav{gap:0}.main-nav a{padding:8px 9px;font-size:13px}.hero-grid{gap:38px}.process-track{grid-template-columns:repeat(2,1fr);gap:30px}.step:nth-child(2):after{display:none}.faq-layout{gap:35px}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 34px))}.navbar{height:70px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;left:17px;right:17px;top:70px;background:var(--plum-2);padding:10px;border-radius:0 0 14px 14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:4px 0 0}.brand-sub{display:none}.hero{padding:56px 0 70px}.hero-grid,.news-layout,.guide-strip,.faq-layout{grid-template-columns:1fr}.hero h1{font-size:39px}.app-panel{max-width:520px;transform:none;margin:auto}.section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:15px}.download-box{grid-template-columns:1fr;padding:32px}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){body{font-size:15px}.container{width:calc(100% - 28px)}.brand-name{font-size:16px}.hero h1{font-size:32px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.entry-layout{grid-template-columns:1fr}.entry-large{min-height:245px}.news-item{grid-template-columns:1fr}.news-date{order:-1}.process-track{grid-template-columns:1fr;gap:26px}.step{padding-right:0}.step:not(:last-child):after{display:none}.download-box h2,.cta h2,.faq-intro h2{font-size:27px}.download-actions .btn{width:100%}.guide-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: article */
:root{
      --plum:#28152f;
      --plum-2:#3d2047;
      --plum-3:#65356d;
      --coral:#f47d62;
      --coral-dark:#d95e49;
      --mint:#cce9d9;
      --cream:#fffaf3;
      --paper:#f7f3f0;
      --ink:#241c26;
      --muted:#746b76;
      --line:#e7dfe3;
      --white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);
      --shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;
      --radius-sm:12px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .article-hero{background:var(--plum);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
    .article-hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(204,233,217,.16);border-radius:50%;right:-170px;top:-220px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:#cdbbd0;font-size:13px;margin-bottom:28px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--coral)}
    .breadcrumb .current{color:var(--mint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .article-head{max-width:880px;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .article-head h1{font-size:clamp(32px,4.2vw,58px);line-height:1.22;letter-spacing:-.04em;margin:18px 0 18px;max-width:900px}
    .article-summary{color:#dfd3e1;font-size:17px;max-width:790px;margin:0 0 25px}
    .article-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;color:#c4b2c7;font-size:13px}
    .badge{display:inline-flex;padding:4px 10px;border-radius:6px;background:#f9ded6;color:#a84e3f;font-weight:800;font-size:12px}
    .article-main{padding:70px 0 86px}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 280px;gap:70px;align-items:start}
    .article-body{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,4vw,52px);box-shadow:var(--shadow-soft);overflow:hidden}
    .article-body h2{font-size:30px;line-height:1.35;margin:34px 0 16px;color:var(--plum)}
    .article-body h3{font-size:22px;line-height:1.45;margin:27px 0 12px;color:var(--plum-2)}
    .article-body p{margin:0 0 20px;color:#4f4652;line-height:2}
    .article-body ul,.article-body ol{padding-left:1.5em;margin:12px 0 24px;color:#4f4652}
    .article-body li{margin:8px 0;line-height:1.9}
    .article-body img{border-radius:14px;margin:28px auto}
    .article-body blockquote{margin:28px 0;padding:20px 24px;border-left:4px solid var(--coral);background:#fff4ef;border-radius:0 12px 12px 0;color:var(--plum-2)}
    .article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14px}
    .article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left}
    .article-body th{background:#f5eaf2;color:var(--plum)}
    .article-body a{color:var(--plum-3);font-weight:700;text-decoration:underline;text-decoration-color:#efb1a2;text-underline-offset:3px}
    .article-body a:hover{color:var(--coral-dark)}
    .article-empty{text-align:center;padding:55px 20px;color:var(--muted)}
    .article-empty h2{margin-top:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-dark{background:var(--plum);color:#fff}
    .btn-dark:hover{background:var(--plum-3);color:#fff;transform:translateY(-2px)}
    .article-sidebar{position:sticky;top:24px}
    .side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;margin-bottom:18px;box-shadow:var(--shadow-soft)}
    .side-card h2{font-size:18px;margin:0 0 15px;color:var(--plum)}
    .side-card p{font-size:14px;color:var(--muted);margin:0 0 17px}
    .side-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
    .side-list li{border-bottom:1px solid var(--line);padding:11px 0;font-size:14px;color:var(--plum-2)}
    .side-list a:hover{color:var(--coral-dark)}
    .side-mark{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:var(--mint);color:var(--plum);font-weight:900;margin-bottom:16px}
    .article-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:26px}
    .article-note{padding:18px 20px;border-radius:var(--radius-sm);background:#f0e9ef;color:var(--plum-2);font-size:14px;margin-top:30px}
    .cta{padding:72px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:35px;line-height:1.3;margin:10px 0 12px}
    .cta p{color:#d8cadb;margin:0 auto 25px;max-width:650px}
    .site-footer{background:#1d1122;color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:55px;padding-bottom:42px}
    .footer-brand p{color:#bcaabe;max-width:410px;font-size:14px;margin:17px 0 0}
    .footer-title{font-size:15px;margin:5px 0 15px;color:var(--mint)}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:9px 0;color:#c8b9cb;font-size:14px}
    .footer-links a{transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #38273d;padding-top:19px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#96869a;font-size:12px}
    @media(max-width:1050px){
      .main-nav{gap:2px}
      .main-nav a{padding:8px 9px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 245px;gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .navbar{height:70px}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;padding:13px 17px 18px;background:var(--plum-2);border-top:1px solid #57365e;flex-direction:column;align-items:stretch;box-shadow:0 15px 25px rgba(0,0,0,.18)}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 13px}
      .nav-download{margin:5px 0 0;text-align:center}
      .article-hero{padding:45px 0 55px}
      .article-layout{display:block}
      .article-sidebar{position:static;margin-top:28px}
      .side-card{margin-bottom:14px}
      .article-main{padding:45px 0 60px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .brand-name{font-size:16px}
      .brand-mark{width:34px;height:34px}
      .article-head h1{font-size:32px}
      .article-summary{font-size:16px}
      .article-body{padding:23px 19px;border-radius:14px}
      .article-body h2{font-size:25px}
      .article-body h3{font-size:20px}
      .article-body p{line-height:1.9}
      .article-bottom{display:block}
      .article-bottom .btn{width:100%;margin-top:9px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin:5px 0}
    }

/* roulang page: category1 */
:root{
      --plum:#28152f;
      --plum-2:#3d2047;
      --plum-3:#65356d;
      --coral:#f47d62;
      --coral-dark:#d95e49;
      --mint:#cce9d9;
      --cream:#fffaf3;
      --paper:#f7f3f0;
      --ink:#241c26;
      --muted:#746b76;
      --line:#e7dfe3;
      --white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);
      --shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;
      --radius-sm:12px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus{outline:3px solid rgba(244,125,98,.42);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .hero{background:var(--plum);color:#fff;overflow:hidden;padding:70px 0 84px;position:relative}
    .hero:after{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(204,233,217,.18);border-radius:50%;right:-180px;top:-190px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .hero h1{font-size:clamp(35px,4.3vw,58px);line-height:1.18;letter-spacing:-.04em;margin:19px 0 22px;max-width:700px}
    .hero h1 em{font-style:normal;color:var(--coral)}
    .hero-copy{font-size:18px;color:#dfd3e1;max-width:620px;line-height:1.85}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
    .btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:#bcaabe;font-size:13px}
    .hero-note span{display:flex;gap:7px;align-items:center}
    .hero-note i{width:7px;height:7px;border-radius:50%;background:var(--mint)}
    .info-panel{background:#fff;color:var(--ink);border-radius:24px;padding:28px;box-shadow:var(--shadow);position:relative}
    .info-panel:before{content:"";position:absolute;right:22px;top:22px;width:74px;height:74px;border-radius:50%;background:var(--mint);opacity:.8}
    .panel-top{display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line);padding-bottom:22px;position:relative;z-index:1}
    .panel-icon{width:54px;height:54px;border-radius:16px;background:var(--plum);color:var(--coral);display:grid;place-items:center;font-size:25px;font-weight:900}
    .panel-top h2{font-size:21px;margin:0;line-height:1.3}
    .panel-top p{font-size:13px;color:var(--muted);margin:3px 0 0}
    .panel-list{list-style:none;padding:18px 0 4px;margin:0}
    .panel-list li{display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
    .panel-list li:last-child{border-bottom:0}
    .panel-list span{color:var(--muted)}
    .panel-list strong{font-weight:750;text-align:right}
    .panel-tip{background:#f7edf0;color:var(--plum-2);border-radius:10px;padding:12px 14px;font-size:13px;margin-top:15px}
    .section{padding:82px 0}
    .section-light{background:var(--cream)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;margin:10px 0 0;letter-spacing:-.03em}
    .section-head p{color:var(--muted);max-width:480px;margin:0}
    .overview-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .overview-card,.side-card,.step-card,.notice-card,.content-route{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .overview-card{padding:34px;min-height:270px}
    .overview-card h3{font-size:25px;margin:14px 0 10px}
    .overview-card p,.side-card p,.content-route p{color:var(--muted);margin:0}
    .card-symbol{color:var(--coral-dark);font-size:25px;font-weight:900}
    .side-stack{display:grid;gap:24px}
    .side-card{padding:25px;display:flex;gap:16px;align-items:flex-start}
    .side-card .mini-number{width:34px;height:34px;border-radius:10px;background:var(--mint);display:grid;place-items:center;color:var(--plum);font-weight:900;flex:none}
    .side-card h3{font-size:18px;margin:0 0 5px}
    .route-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .content-route{padding:23px;min-height:190px;transition:.25s}
    .content-route:hover{transform:translateY(-4px);border-color:var(--coral);box-shadow:var(--shadow)}
    .route-index{color:var(--coral-dark);font-size:13px;font-weight:900}
    .content-route h3{font-size:18px;margin:14px 0 8px}
    .route-link{display:inline-block;color:var(--plum-3);font-weight:800;font-size:13px;margin-top:16px}
    .process{background:var(--plum-2);color:#fff}
    .process .section-kicker{color:var(--mint)}
    .process .section-head p{color:#d8cadb}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .steps:before{content:"";position:absolute;top:25px;left:8%;right:8%;height:1px;background:rgba(204,233,217,.3)}
    .step-card{background:transparent;border:0;box-shadow:none;padding:0 18px;position:relative;text-align:center}
    .step-no{width:50px;height:50px;background:var(--coral);color:var(--plum);border-radius:15px;display:grid;place-items:center;font-weight:900;margin:0 auto 20px;position:relative;z-index:1}
    .step-card h3{font-size:18px;margin:0 0 8px}
    .step-card p{color:#d8cadb;font-size:14px;margin:0}
    .notice-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;align-items:stretch}
    .notice-card{padding:30px;background:#f4e8e9;border-color:#efd5d2}
    .notice-card h3{font-size:23px;margin:12px 0}
    .notice-card p{color:#6e5c64;margin:0}
    .notice-card .btn{margin-top:23px;background:var(--plum);color:#fff}
    .notice-card .btn:hover{background:var(--plum-3)}
    .note-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:13px 26px}
    .note-row{display:flex;gap:15px;padding:19px 0;border-bottom:1px solid var(--line)}
    .note-row:last-child{border-bottom:0}
    .note-row strong{color:var(--coral-dark);font-size:13px;min-width:72px}
    .note-row p{margin:0;color:var(--muted);font-size:14px}
    .faq-section{background:#f0e9ef}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro h2{font-size:34px;margin:10px 0}
    .faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid #d7cbd5}
    .faq-item{border-bottom:1px solid #d7cbd5}
    .faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{color:var(--coral);font-size:22px;transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:70px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:35px;margin:10px 0 12px}
    .cta p{color:#d8cadb;margin:auto;max-width:680px}
    .cta .btn{margin-top:25px}
    .site-footer{background:#211326;color:#fff;padding:54px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;padding-bottom:40px}
    .footer-brand p{color:#bbaabd;max-width:360px;font-size:14px;margin:17px 0 0}
    .footer-title{font-size:15px;margin:5px 0 17px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:9px 0}
    .footer-links a{color:#bbaabd;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #46324a;padding-top:21px;color:#947d98;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px}
    @media(max-width:992px){
      .main-nav{gap:1px}.main-nav a{padding:8px 9px;font-size:13px}
      .hero-grid,.overview-grid,.notice-layout{grid-template-columns:1fr;gap:34px}
      .hero{padding:58px 0 70px}.hero-grid{gap:42px}
      .route-grid{grid-template-columns:repeat(2,1fr)}
      .faq-layout{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{min-height:70px}.menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--plum-2);padding:10px;border-radius:13px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:5px 0 0;text-align:center}
      .hero h1{font-size:39px}.hero-copy{font-size:16px}
      .section{padding:62px 0}.section-head{display:block}.section-head h2{font-size:29px}.section-head p{margin-top:12px}
      .steps{grid-template-columns:1fr 1fr;gap:30px 5px}.steps:before{display:none}
      .faq-layout{grid-template-columns:1fr}.faq-intro h2{font-size:29px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .brand-name{font-size:15px}.brand-sub{font-size:10px}
      .hero{padding:48px 0 58px}.hero h1{font-size:34px}.hero-actions .btn{width:100%}
      .info-panel{padding:22px}.overview-card{padding:25px}.route-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr}.step-card{text-align:left;display:grid;grid-template-columns:50px 1fr;column-gap:15px}.step-no{grid-row:span 2;margin:0}.step-card h3{align-self:end}.step-card p{align-self:start}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin:5px 0}
    }

/* roulang page: article */
:root{
      --plum:#28152f;--plum-2:#3d2047;--plum-3:#65356d;--coral:#f47d62;
      --coral-dark:#d95e49;--mint:#cce9d9;--cream:#fffaf3;--paper:#f7f3f0;
      --ink:#241c26;--muted:#746b76;--line:#e7dfe3;--white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);--shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;--radius-sm:12px;--container:1200px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus,button:focus{outline:3px solid rgba(244,125,98,.42);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .article-hero{background:var(--plum);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
    .article-hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(204,233,217,.15);border-radius:50%;right:-150px;top:-210px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .hero-inner{position:relative;z-index:1;max-width:920px}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:#cbb9cf;font-size:13px;margin-bottom:22px;flex-wrap:wrap}
    .breadcrumb a:hover{color:var(--mint)}
    .breadcrumb .current{color:#fff;max-width:500px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .article-hero h1{font-size:clamp(32px,4.2vw,56px);line-height:1.22;letter-spacing:-.035em;margin:18px 0 20px;max-width:900px}
    .article-summary{font-size:18px;color:#dfd3e1;max-width:800px;line-height:1.85;margin:0}
    .article-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;color:#c7b6ca;font-size:13px;margin-top:25px}
    .badge{display:inline-flex;padding:4px 10px;border-radius:6px;background:#f9ded6;color:#a84e3f;font-weight:800;font-size:12px}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 280px;gap:54px;align-items:start;padding:70px 0 88px}
    .article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(26px,4vw,54px);box-shadow:var(--shadow-soft);min-width:0}
    .article-content{font-size:17px;line-height:1.95;color:#403742}
    .article-content h2{font-size:30px;line-height:1.35;color:var(--plum);margin:42px 0 16px;padding-left:16px;border-left:4px solid var(--coral)}
    .article-content h3{font-size:22px;color:var(--plum-2);margin:30px 0 12px}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:27px;margin:0 0 24px}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:28px 0;padding:20px 24px;background:#f3eaf2;border-left:4px solid var(--plum-3);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--plum-2)}
    .article-content table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
    .article-content th{background:#f3eaf2;color:var(--plum);font-weight:800}
    .article-content img{border-radius:12px;margin:25px auto}
    .article-content a{color:var(--plum-3);font-weight:700;text-decoration:underline;text-decoration-color:rgba(244,125,98,.55);text-underline-offset:3px}
    .article-aside{position:sticky;top:24px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-soft);margin-bottom:18px}
    .side-card h2{font-size:18px;margin:0 0 15px;color:var(--plum)}
    .side-card p{font-size:14px;color:var(--muted);margin:0 0 16px}
    .side-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
    .side-list li{border-bottom:1px solid var(--line);padding:11px 0;font-size:14px}
    .side-list a{color:var(--plum-3);font-weight:700}
    .side-list a:hover{color:var(--coral-dark)}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 19px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:46px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-dark{background:var(--plum);color:#fff}
    .btn-dark:hover{background:var(--plum-3);transform:translateY(-2px)}
    .article-end{border-top:1px solid var(--line);margin-top:40px;padding-top:26px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .text-link{color:var(--plum-3);font-weight:800;font-size:14px}
    .text-link:hover{color:var(--coral-dark)}
    .empty-state{text-align:center;padding:70px 25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft)}
    .empty-icon{width:58px;height:58px;margin:0 auto 18px;border-radius:18px;background:#f3eaf2;color:var(--plum-3);display:grid;place-items:center;font-size:27px;font-weight:900}
    .empty-state h1{font-size:28px;margin:0 0 10px;color:var(--plum)}
    .empty-state p{color:var(--muted);margin:0 0 22px}
    .cta{padding:68px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:34px;margin:10px 0 12px}
    .cta p{color:#d8cadb;margin:0 auto 24px;max-width:650px}
    .site-footer{background:#1d1122;color:#fff;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:50px;padding-bottom:38px}
    .footer-brand p{color:#bcaabe;max-width:390px;font-size:14px;margin:17px 0 0}
    .footer-title{font-size:15px;margin:4px 0 15px;color:var(--mint)}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:9px 0;color:#cbb9cf;font-size:14px}
    .footer-links a{transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #3c2942;padding-top:19px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#96839a;font-size:12px}
    @media(max-width:1050px){
      .main-nav{gap:2px}.main-nav a{padding:8px 9px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:30px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .navbar{height:70px}.menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:17px;right:17px;top:70px;padding:10px;background:var(--plum-2);border:1px solid #64476b;border-radius:12px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .main-nav.show{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:4px 0 0;text-align:center}
      .article-hero{padding:46px 0 54px}.article-hero h1{font-size:34px}
      .article-summary{font-size:16px}.article-layout{display:block;padding:42px 0 60px}
      .article-aside{position:static;margin-top:24px}.article-content{font-size:16px}
      .article-content h2{font-size:26px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .brand-name{font-size:15px}.brand-sub{font-size:10px}
      .article-body{padding:24px 20px;border-radius:14px}.article-hero h1{font-size:29px}
      .article-meta{gap:8px}.breadcrumb .current{max-width:230px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .article-end{display:block}.article-end a{display:block;margin:9px 0}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .copyright{display:block}.copyright span{display:block;margin:5px 0}
    }

/* roulang page: category1 */
:root{
      --plum:#28152f;--plum-2:#3d2047;--plum-3:#65356d;
      --coral:#f47d62;--coral-dark:#d95e49;--mint:#cce9d9;
      --cream:#fffaf3;--paper:#f7f3f0;--ink:#241c26;--muted:#746b76;
      --line:#e7dfe3;--white:#fff;--shadow:0 18px 45px rgba(45,24,48,.11);
      --shadow-soft:0 8px 24px rgba(45,24,48,.07);--radius:18px;--radius-sm:12px;
      --container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none} img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:#fff;position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:#fff;background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .page-hero{background:var(--plum);color:#fff;padding:40px 0 76px;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(204,233,217,.16);border-radius:50%;right:-150px;top:-180px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .breadcrumb{position:relative;z-index:1;color:#c9b8cb;font-size:13px;margin-bottom:46px}
    .breadcrumb a{color:var(--mint)}.breadcrumb span{margin:0 9px;color:#806783}
    .hero-layout{display:grid;grid-template-columns:1.02fr .98fr;gap:72px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    h1{font-size:clamp(35px,4.3vw,60px);line-height:1.18;letter-spacing:-.04em;margin:18px 0}
    .hero-copy{font-size:18px;color:#dfd3e1;max-width:620px;line-height:1.85}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
    .btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .info-panel{background:var(--cream);color:var(--ink);border-radius:22px;padding:28px;box-shadow:var(--shadow);position:relative}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:22px}
    .panel-label{font-size:12px;color:var(--muted);font-weight:700}.panel-logo{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--plum-2)}
    .mini-mark{width:32px;height:32px;border-radius:10px;background:var(--coral);display:grid;place-items:center}
    .info-panel h2{font-size:27px;line-height:1.3;margin:0 0 12px}.info-panel p{color:var(--muted);font-size:14px;margin:0 0 20px}
    .facts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .fact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}.fact small{display:block;color:var(--muted);font-size:12px}.fact strong{display:block;margin-top:4px;color:var(--plum-2);font-size:15px}
    .panel-note{margin-top:18px;padding:12px 14px;border-radius:10px;background:var(--mint);font-size:13px;color:#315640}
    .section{padding:84px 0}.section.cream{background:var(--cream)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:34px;line-height:1.25;margin:10px 0 0;letter-spacing:-.03em}.section-head p{color:var(--muted);max-width:490px;margin:0}
    .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .feature-card,.route-card,.scene-card,.notice-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-soft);transition:.25s}
    .feature-card:hover,.route-card:hover,.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .feature-card.large{min-height:260px;background:var(--plum);color:#fff;border-color:var(--plum)}
    .feature-card.large p{color:#d8cadb}.feature-card h3,.scene-card h3,.route-card h3{font-size:21px;margin:14px 0 8px}.feature-card p,.scene-card p,.route-card p{color:var(--muted);font-size:14px;margin:0}
    .feature-icon{width:45px;height:45px;border-radius:13px;background:var(--coral);color:var(--plum);display:grid;place-items:center;font-weight:900;font-size:20px}
    .small-stack{display:grid;gap:20px}.small-stack .feature-card{display:flex;gap:16px;align-items:flex-start;padding:22px}
    .small-stack .feature-icon{flex:0 0 42px;width:42px;height:42px;background:var(--mint)}
    .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .scene-card{min-height:190px}.scene-card .number{font-size:13px;color:var(--coral-dark);font-weight:900;letter-spacing:.08em}
    .route-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}.route-intro p{color:var(--muted);max-width:390px}
    .route-list{border-left:2px solid #decfdc;padding-left:27px;display:grid;gap:20px}.route-card{position:relative;padding:21px 24px}.route-card:before{content:"";position:absolute;width:12px;height:12px;background:var(--coral);border:3px solid var(--paper);border-radius:50%;left:-35px;top:28px}
    .download-section{background:var(--mint);padding:64px 0}.download-box{display:flex;align-items:center;justify-content:space-between;gap:30px}.download-box h2{font-size:32px;margin:8px 0}.download-box p{color:#50685a;margin:0;max-width:650px}.download-box .btn-primary{background:var(--plum);color:#fff}.download-box .btn-primary:hover{background:var(--plum-3)}
    .faq-section{background:#f0e9ef}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-intro h2{font-size:34px;margin:10px 0}.faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid #d7cbd5}.faq-item{border-bottom:1px solid #d7cbd5}.faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}.faq-question span:last-child{color:var(--coral);font-size:22px;transition:.2s}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:70px 0;background:var(--plum);color:#fff;text-align:center}.cta h2{font-size:35px;margin:10px 0 12px}.cta p{color:#d8cadb;margin:auto;max-width:650px}.cta .btn{margin-top:25px}
    .site-footer{background:#1d1023;color:#fff;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}.footer-brand p{color:#bbaabd;max-width:365px;font-size:14px;margin-top:17px}.footer-title{font-size:15px;margin:4px 0 16px}.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:9px}.footer-links a{color:#bbaabd;font-size:14px;transition:.2s}.footer-links a:hover{color:var(--coral)}.copyright{border-top:1px solid #3a2940;margin-top:40px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#8f7b92;font-size:12px}
    :focus-visible{outline:3px solid var(--mint);outline-offset:3px}
    @media(max-width:992px){.main-nav{gap:1px}.main-nav a{padding:8px 8px}.hero-layout,.route-wrap{gap:35px}.faq-layout{gap:35px}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.navbar{height:70px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum-2);padding:12px 16px;flex-direction:column;align-items:stretch;box-shadow:0 12px 20px rgba(0,0,0,.16)}.main-nav.show{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:4px 0 0;text-align:center}.page-hero{padding:28px 0 60px}.breadcrumb{margin-bottom:30px}.hero-layout,.feature-grid,.route-wrap,.faq-layout{grid-template-columns:1fr}.hero-copy{font-size:16px}.info-panel{max-width:620px}.section{padding:64px 0}.section-head{display:block}.section-head p{margin-top:14px}.scene-grid{grid-template-columns:1fr}.download-box{display:block}.download-box .btn{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}}
    @media(max-width:520px){h1{font-size:35px}.hero-actions .btn{width:100%}.facts{grid-template-columns:1fr}.feature-card.large{min-height:0}.section-head h2,.faq-intro h2,.download-box h2{font-size:28px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: category2 */
:root{
      --plum:#28152f;
      --plum-2:#3d2047;
      --plum-3:#65356d;
      --coral:#f47d62;
      --coral-dark:#d95e49;
      --mint:#cce9d9;
      --cream:#fffaf3;
      --paper:#f7f3f0;
      --ink:#241c26;
      --muted:#746b76;
      --line:#e7dfe3;
      --white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);
      --shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;
      --radius-sm:12px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .hero{background:var(--plum);color:#fff;padding:70px 0 78px;position:relative;overflow:hidden}
    .hero:after{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(204,233,217,.17);border-radius:50%;right:-170px;top:-180px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .hero-grid{display:grid;grid-template-columns:1fr .86fr;gap:76px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .hero h1{font-size:clamp(34px,4.5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:19px 0 20px;max-width:700px}
    .hero h1 em{font-style:normal;color:var(--coral)}
    .hero-copy{font-size:18px;color:#dfd3e1;max-width:650px;line-height:1.85}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:29px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
    .btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:#bcaabe;font-size:13px}
    .hero-note span{display:flex;gap:7px;align-items:center}
    .hero-note i{width:7px;height:7px;border-radius:50%;background:var(--mint)}
    .guide-panel{background:var(--cream);color:var(--ink);border-radius:24px;padding:28px;box-shadow:var(--shadow);transform:rotate(1deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
    .panel-top strong{font-size:19px}.panel-icon{width:42px;height:42px;border-radius:13px;background:var(--mint);display:grid;place-items:center;color:var(--plum);font-size:21px;font-weight:900}
    .panel-lead{font-size:14px;color:var(--muted);margin:20px 0}
    .panel-step{display:flex;align-items:center;gap:14px;padding:15px 0;border-top:1px solid var(--line)}
    .step-dot{width:30px;height:30px;border-radius:9px;background:#f9ded6;color:var(--coral-dark);display:grid;place-items:center;font-weight:900;font-size:13px;flex:none}
    .panel-step b{font-size:15px}.panel-step small{display:block;color:var(--muted);font-size:12px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:34px;line-height:1.25;margin:10px 0 0;letter-spacing:-.03em}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .guide-nav{background:var(--cream)}
    .topic-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:25px}
    .topic-card{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:28px;min-height:220px;box-shadow:var(--shadow-soft);transition:.25s}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9b0a8}
    .topic-card.accent{background:var(--plum);color:#fff;display:flex;flex-direction:column;justify-content:space-between}
    .topic-card.accent p{color:#d9cbdc}.topic-card h3{font-size:23px;margin:12px 0}.topic-card p{color:var(--muted);font-size:14px;margin:0}
    .topic-number{font-size:12px;font-weight:900;color:var(--coral);letter-spacing:.1em}
    .topic-stack{display:grid;grid-template-columns:1fr 1fr;gap:25px}
    .topic-stack .topic-card:last-child{grid-column:1/-1;min-height:150px}
    .timeline-section{background:#f0e9ef}
    .timeline{position:relative;max-width:920px;margin:0 auto;padding:8px 0}
    .timeline:before{content:"";position:absolute;left:27px;top:18px;bottom:18px;width:2px;background:#d6c4d4}
    .timeline-item{display:grid;grid-template-columns:56px 1fr;gap:25px;position:relative;margin-bottom:28px}
    .timeline-item:last-child{margin-bottom:0}
    .timeline-number{width:56px;height:56px;border-radius:16px;background:var(--coral);color:var(--plum);display:grid;place-items:center;font-weight:900;position:relative;z-index:1;box-shadow:0 0 0 7px #f0e9ef}
    .timeline-content{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:19px 23px}
    .timeline-content h3{font-size:19px;margin:0 0 5px}.timeline-content p{color:var(--muted);font-size:14px;margin:0}
    .notice-section{background:var(--cream)}
    .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
    .notice-box{padding:30px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
    .notice-box.warn{background:#fff1eb;border-color:#f4c5b8}
    .notice-box h3{margin:0 0 11px;font-size:21px}.notice-box p,.notice-box li{color:var(--muted);font-size:14px}
    .notice-box ul{margin:0;padding-left:20px}.notice-box li+li{margin-top:8px}
    .download-strip{background:var(--mint);border-radius:var(--radius);padding:36px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .download-strip h2{font-size:29px;margin:8px 0}.download-strip p{color:#52665d;margin:0;max-width:650px}
    .download-strip .btn{background:var(--plum);color:#fff;white-space:nowrap}.download-strip .btn:hover{background:var(--plum-3);transform:translateY(-2px)}
    .faq-section{background:#f0e9ef}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-intro h2{font-size:34px;margin:10px 0}.faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid #d7cbd5}
    .faq-item{border-bottom:1px solid #d7cbd5}
    .faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{color:var(--coral);font-size:22px;transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
    .faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:72px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:35px;margin:10px 0 12px}.cta p{color:#d8cadb;margin:0 auto 24px;max-width:680px}
    .site-footer{background:#1c1021;color:#fff;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:42px}
    .footer-brand p{color:#bbaabd;font-size:14px;max-width:370px;margin-top:18px}
    .footer-title{font-size:15px;margin:6px 0 17px;color:var(--mint)}
    .footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:9px 0}.footer-links a{color:#cbbdcd;font-size:14px;transition:.2s}.footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #39253e;padding-top:19px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#927f96;font-size:12px}
    :focus-visible{outline:3px solid var(--mint);outline-offset:3px}
    @media(max-width:1024px){
      .main-nav{gap:1px}.main-nav a{padding:8px 9px;font-size:13px}.hero-grid{gap:40px}.topic-layout{grid-template-columns:1fr}.topic-stack{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}.navbar{height:70px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum-2);padding:12px 17px 18px;flex-direction:column;align-items:stretch;box-shadow:0 15px 25px rgba(0,0,0,.2)}.main-nav.show{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:7px 0 0;text-align:center}.hero{padding:58px 0 65px}.hero-grid{grid-template-columns:1fr;gap:38px}.hero h1{font-size:42px}.section{padding:64px 0}.section-head,.download-strip{align-items:flex-start;flex-direction:column}.section-head h2{font-size:29px}.faq-layout{grid-template-columns:1fr;gap:28px}.notice-grid{grid-template-columns:1fr}.download-strip{padding:30px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .brand-name{font-size:15px}.brand-mark{width:34px;height:34px}.hero h1{font-size:34px}.hero-copy{font-size:16px}.hero-actions .btn{width:100%}.topic-stack{grid-template-columns:1fr}.topic-stack .topic-card:last-child{grid-column:auto}.timeline-item{grid-template-columns:44px 1fr;gap:15px}.timeline:before{left:21px}.timeline-number{width:44px;height:44px;border-radius:12px}.timeline-content{padding:16px}.download-strip .btn{width:100%}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }

/* roulang page: category3 */
:root{
  --plum:#28152f;--plum-2:#3d2047;--plum-3:#65356d;--coral:#f47d62;--coral-dark:#d95e49;
  --mint:#cce9d9;--cream:#fffaf3;--paper:#f7f3f0;--ink:#241c26;--muted:#746b76;
  --line:#e7dfe3;--white:#fff;--shadow:0 18px 45px rgba(45,24,48,.11);
  --shadow-soft:0 8px 24px rgba(45,24,48,.07);--radius:18px;--radius-sm:12px;--container:1200px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{background:var(--plum);color:var(--white);position:relative;z-index:20}
.navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
.brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
.main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
.main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
.nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
.nav-download:hover,.nav-download:focus{background:#ff9278!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
.btn:focus-visible,.main-nav a:focus-visible,.faq-question:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
.btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
.btn-secondary{border-color:var(--plum-3);background:transparent;color:var(--plum-2)}
.btn-secondary:hover,.btn-secondary:focus{background:var(--plum-2);color:#fff;transform:translateY(-2px)}
.btn-disabled{background:#d9d0d7;color:#827781;cursor:not-allowed;box-shadow:none}
.btn-disabled:hover{transform:none}
.section{padding:84px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}
.section-head h2{font-size:clamp(28px,3vw,38px);line-height:1.25;letter-spacing:-.035em;margin:8px 0 0}
.section-head p{color:var(--muted);max-width:510px;margin:0}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--plum-3);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
.page-hero{background:var(--cream);border-bottom:1px solid var(--line);padding:30px 0 74px;position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-110px;top:-230px;border:36px solid rgba(244,125,98,.11)}
.breadcrumb{position:relative;z-index:1;display:flex;gap:9px;align-items:center;font-size:13px;color:var(--muted);margin:0 0 34px;padding:0}
.breadcrumb a:hover{color:var(--coral-dark)}
.breadcrumb span{color:#ab9da8}
.download-hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr .88fr;gap:58px;align-items:center}
.page-hero h1{font-size:clamp(37px,4.7vw,61px);line-height:1.15;letter-spacing:-.05em;margin:16px 0 20px;max-width:680px}
.page-hero h1 em{font-style:normal;color:var(--coral-dark)}
.hero-copy{color:#5e5361;font-size:18px;max-width:650px;margin:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
.trust-list{padding:0;margin:25px 0 0;display:flex;gap:18px;flex-wrap:wrap;list-style:none;color:var(--muted);font-size:13px}
.trust-list li{display:flex;align-items:center;gap:8px}
.trust-list i{width:8px;height:8px;background:var(--mint);border-radius:50%;display:block}
.download-panel{background:var(--plum);border-radius:24px;padding:27px;box-shadow:var(--shadow);color:#fff;position:relative;overflow:hidden}
.download-panel:after{content:"";width:220px;height:220px;border:1px solid rgba(204,233,217,.24);border-radius:50%;position:absolute;right:-95px;bottom:-105px}
.panel-top{display:flex;align-items:center;gap:14px;position:relative;z-index:1}
.app-symbol{width:54px;height:54px;border-radius:17px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:26px;box-shadow:5px 5px 0 rgba(204,233,217,.75)}
.panel-top h2{font-size:20px;margin:0;font-weight:800}
.panel-top p{color:#d6c8d8;font-size:13px;margin:2px 0 0}
.status-line{position:relative;z-index:1;margin:24px 0 20px;padding:15px 16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.13);border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px}
.status-dot{display:inline-flex;align-items:center;gap:7px;color:var(--mint);font-weight:800}
.status-dot:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint)}
.device-tabs{display:flex;gap:8px;position:relative;z-index:1;margin-bottom:16px}
.device-tab{border:1px solid #705375;background:transparent;color:#d9c9db;border-radius:8px;padding:8px 12px;font-size:13px;font-weight:700}
.device-tab.active{background:#fff;color:var(--plum);border-color:#fff}
.panel-info{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:17px}
.info-cell{border-radius:10px;padding:10px 12px;background:rgba(255,255,255,.06);color:#cdbdcf;font-size:12px}
.info-cell strong{display:block;color:#fff;font-size:13px;margin-top:2px}
.panel-action{position:relative;z-index:1;width:100%}
.install-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:38px;align-items:start}
.install-intro{background:var(--mint);border-radius:var(--radius);padding:34px;position:sticky;top:22px}
.install-intro h2{font-size:31px;line-height:1.3;margin:12px 0}
.install-intro p{color:#4b5f58;margin:0 0 22px}
.note-box{border-left:3px solid var(--coral-dark);padding:5px 0 5px 14px;font-size:13px;color:#44554f}
.steps{display:flex;flex-direction:column;gap:14px}
.step-card{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:23px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);transition:.25s}
.step-card:hover{transform:translateX(4px);border-color:#c7a8c9}
.step-num{width:42px;height:42px;border-radius:13px;background:#f9ded6;color:#9f483b;display:grid;place-items:center;font-weight:900;font-size:16px}
.step-card h3{font-size:19px;margin:2px 0 6px}
.step-card p{font-size:14px;color:var(--muted);margin:0}
.step-card .small-link{display:inline-block;margin-top:9px;color:var(--plum-3);font-size:13px;font-weight:800}
.prep-section{background:#eee7ed}
.prep-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
.checklist-card,.support-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-soft)}
.checklist-card h3,.support-card h3{font-size:23px;margin:0 0 16px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{padding:14px 0;border-bottom:1px solid var(--line);display:flex;gap:13px;align-items:flex-start;font-size:14px}
.check-list li:last-child{border-bottom:0}
.check-icon{flex:0 0 23px;width:23px;height:23px;border-radius:50%;background:#e4f2e9;color:#39705b;display:grid;place-items:center;font-size:13px;font-weight:900;margin-top:2px}
.support-card{background:var(--plum-2);color:#fff;position:relative;overflow:hidden}
.support-card:before{content:"";position:absolute;right:-44px;top:-44px;width:150px;height:150px;border-radius:50%;border:24px solid rgba(244,125,98,.13)}
.support-card p{color:#d8c8da;font-size:14px;position:relative}
.support-card .btn{position:relative;margin-top:12px}
.entry-strip{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.entry-item{background:#fff;padding:27px 28px;transition:.25s;position:relative}
.entry-item:hover{background:#fff8f5}
.entry-item h3{font-size:19px;margin:8px 0}
.entry-item p{font-size:14px;color:var(--muted);margin:0;max-width:270px}
.entry-item .text-link{display:inline-block;margin-top:13px;color:var(--plum-3);font-weight:800;font-size:14px}
.entry-item .text-link:hover{color:var(--coral-dark)}
.mini-label{font-size:12px;color:#ad4d40;font-weight:800;background:#f9ded6;padding:4px 8px;border-radius:6px}
.faq-section{background:var(--cream)}
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:64px}
.faq-intro h2{font-size:34px;line-height:1.3;margin:10px 0}
.faq-intro p{color:var(--muted)}
.faq-list{border-top:1px solid #d7cbd5}
.faq-item{border-bottom:1px solid #d7cbd5}
.faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-weight:800;color:var(--ink)}
.faq-question span:last-child{color:var(--coral);font-size:23px;line-height:1;transition:.2s}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.cta{padding:72px 0;background:var(--plum);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta:before,.cta:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(204,233,217,.16)}
.cta:before{width:300px;height:300px;left:-160px;top:-155px}.cta:after{width:240px;height:240px;right:-115px;bottom:-145px}
.cta .container{position:relative}
.cta h2{font-size:35px;margin:10px 0 12px}
.cta p{color:#d8cadb;margin:0 auto;max-width:650px}
.cta .hero-actions{justify-content:center;margin-top:26px}
.site-footer{background:#1e1223;color:#d9cadb;padding:58px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.45fr .7fr .7fr;gap:55px;padding-bottom:42px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:390px;margin:17px 0 0;color:#bfaec1}
.footer-title{font-size:15px;color:#fff;margin:8px 0 15px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:9px 0}
.footer-links a{font-size:14px;color:#c9b9cc;transition:.2s}
.footer-links a:hover{color:var(--coral)}
.copyright{padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#a996ac;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
@media (max-width:1100px){
  .main-nav a{padding:8px 9px;font-size:13px}.navbar{gap:15px}
  .download-hero-grid{gap:36px}.faq-layout{gap:38px}
}
@media (max-width:900px){
  .menu-toggle{display:block}.navbar{height:70px}.main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--plum-2);padding:12px 24px 20px;flex-direction:column;align-items:stretch;border-top:1px solid rgba(255,255,255,.1)}
  .main-nav.open{display:flex}.main-nav a{padding:11px 14px}.nav-download{margin:5px 0 0}
  .download-hero-grid,.install-grid,.prep-grid,.faq-layout{grid-template-columns:1fr}.download-panel{max-width:610px}.install-intro{position:static}
  .entry-strip{grid-template-columns:1fr}.section{padding:68px 0}.footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:28px}
}
@media (max-width:620px){
  .container{width:min(100% - 32px,var(--container))}.brand-name{font-size:15px}.brand-sub{display:none}
  .page-hero{padding:23px 0 58px}.breadcrumb{margin-bottom:27px}.page-hero h1{font-size:37px}.hero-copy{font-size:16px}
  .hero-actions .btn{width:100%}.section{padding:54px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:13px}
  .download-panel{padding:21px}.panel-info{grid-template-columns:1fr}.status-line{align-items:flex-start;flex-direction:column}
  .step-card{grid-template-columns:45px 1fr;padding:19px 17px;gap:13px}.install-intro,.checklist-card,.support-card{padding:24px}
  .entry-item{padding:23px}.faq-intro h2,.cta h2{font-size:29px}.faq-question{padding:18px 2px}.footer-grid{grid-template-columns:1fr;gap:27px;padding-bottom:30px}
  .copyright{display:block}.copyright span{display:block;margin:5px 0}.cta{padding:58px 0}
}

/* roulang page: category4 */
:root{
      --plum:#28152f;
      --plum-2:#3d2047;
      --plum-3:#65356d;
      --coral:#f47d62;
      --coral-dark:#d95e49;
      --mint:#cce9d9;
      --cream:#fffaf3;
      --paper:#f7f3f0;
      --ink:#241c26;
      --muted:#746b76;
      --line:#e7dfe3;
      --white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);
      --shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;
      --radius-sm:12px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .page-hero{background:var(--plum);color:#fff;padding:68px 0 74px;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(204,233,217,.2);border-radius:50%;right:-150px;top:-220px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .page-hero h1{font-size:clamp(34px,4.2vw,58px);line-height:1.18;letter-spacing:-.04em;margin:18px 0 18px;max-width:760px}
    .page-hero h1 em{font-style:normal;color:var(--coral)}
    .hero-copy{font-size:18px;color:#dfd3e1;max-width:670px;line-height:1.85;margin:0}
    .crumbs{margin-top:26px;color:#bcaabe;font-size:13px}
    .crumbs a{color:var(--mint)}
    .news-board{background:#fff;border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:26px;box-shadow:0 20px 45px rgba(10,4,14,.22);position:relative}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #eadfe8;padding-bottom:17px}
    .board-title{font-weight:800;color:var(--plum);font-size:18px}
    .board-dot{width:10px;height:10px;border-radius:50%;background:var(--coral);box-shadow:18px 0 0 var(--mint),36px 0 0 #ead2c9}
    .board-line{height:10px;border-radius:6px;background:#f0e8ed;margin-top:19px}
    .board-line.wide{width:90%;height:16px;background:#e5d6e5}
    .board-line.mid{width:68%}
    .board-line.short{width:42%}
    .board-row{display:flex;gap:13px;align-items:center;margin-top:18px}
    .board-icon{width:40px;height:40px;border-radius:11px;background:var(--mint);display:grid;place-items:center;color:var(--plum-2);font-weight:900}
    .board-row .board-line{flex:1;margin:0}
    .section{padding:84px 0}
    .section.cream{background:var(--cream)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-head h2{font-size:34px;line-height:1.25;margin:10px 0 0;letter-spacing:-.03em}
    .section-head p{color:var(--muted);max-width:500px;margin:0}
    .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .lead-panel{background:var(--plum);color:#fff;border-radius:var(--radius);padding:34px;min-height:285px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow)}
    .lead-panel h3{font-size:27px;line-height:1.35;margin:13px 0}
    .lead-panel p{color:#dfd3e1;margin:0;max-width:570px}
    .lead-panel .text-link{color:var(--mint)}
    .topic-panel{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;min-height:135px;transition:.25s}
    .topic-card:hover{transform:translateY(-3px);border-color:var(--coral);box-shadow:var(--shadow-soft)}
    .topic-card h3{font-size:18px;margin:0 0 7px}
    .topic-card p{font-size:13px;color:var(--muted);margin:0}
    .topic-card .mini-arrow{display:block;color:var(--coral);font-size:20px;margin-top:10px}
    .content-strip{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
    .editorial-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:31px;box-shadow:var(--shadow-soft)}
    .editorial-card h3{font-size:25px;line-height:1.4;margin:12px 0}
    .editorial-card p{color:var(--muted);margin:0 0 20px}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
    .badge{display:inline-flex;padding:5px 10px;border-radius:7px;background:#f9ded6;color:#a84e3f;font-weight:800;font-size:12px}
    .badge.mint{background:var(--mint);color:var(--plum-2)}
    .info-card{background:#f0e9ef;border-radius:var(--radius);padding:30px}
    .info-card h3{font-size:22px;margin:0 0 12px}
    .info-card p{font-size:14px;color:var(--muted);margin:0}
    .info-list{list-style:none;padding:0;margin:20px 0 0}
    .info-list li{display:flex;gap:10px;padding:12px 0;border-bottom:1px solid #d9cbd8;font-size:14px}
    .info-list li:last-child{border-bottom:0}
    .info-list b{color:var(--coral-dark)}
    .route{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .route-step{padding:26px 24px;position:relative;border-right:1px solid var(--line)}
    .route-step:last-child{border-right:0}
    .route-number{width:34px;height:34px;border-radius:10px;background:var(--coral);color:var(--plum);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
    .route-step h3{font-size:18px;margin:0 0 8px}
    .route-step p{font-size:14px;color:var(--muted);margin:0}
    .empty-state{margin-top:22px;background:#fff;border:1px dashed #cdbdca;border-radius:var(--radius);padding:30px;text-align:center;color:var(--muted)}
    .empty-icon{width:48px;height:48px;border-radius:15px;background:var(--mint);color:var(--plum);display:grid;place-items:center;font-weight:900;font-size:20px;margin:0 auto 12px}
    .empty-state strong{display:block;color:var(--ink);font-size:18px;margin-bottom:5px}
    .faq-section{background:#f0e9ef}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}
    .faq-intro h2{font-size:34px;margin:10px 0}
    .faq-intro p{color:var(--muted)}
    .faq-list{border-top:1px solid #d7cbd5}
    .faq-item{border-bottom:1px solid #d7cbd5}
    .faq-question{width:100%;background:none;border:0;text-align:left;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;gap:18px;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{color:var(--coral);font-size:22px;transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{padding:70px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:35px;margin:10px 0 12px}
    .cta p{color:#d8cadb;margin:0 auto 25px;max-width:680px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
    .btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .text-link{color:var(--plum-3);font-weight:800;font-size:14px;display:inline-block}
    .text-link:hover{color:var(--coral-dark)}
    .site-footer{background:#1c1021;color:#fff;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:55px;padding-bottom:38px}
    .footer-brand .brand{margin-bottom:17px}
    .footer-brand p{color:#bcaabe;font-size:14px;max-width:360px;margin:0}
    .footer-title{font-size:15px;margin:7px 0 15px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:9px 0;color:#bcaabe;font-size:14px}
    .footer-links a{transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #3a2940;padding-top:20px;color:#8f7d92;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    @media(max-width:1024px){
      .main-nav a{padding:9px 8px;font-size:13px}
      .hero-inner{gap:40px}
      .route-step{padding:24px 17px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:70px}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;padding:12px;background:var(--plum-2);border:1px solid #63466b;border-radius:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .main-nav.show{display:flex}
      .main-nav a{padding:12px 14px}
      .nav-download{margin:5px 0 0;text-align:center}
      .hero-inner,.intro-grid,.content-strip,.faq-layout{grid-template-columns:1fr}
      .page-hero{padding:52px 0 60px}
      .news-board{max-width:560px}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head p{margin-top:13px}
      .route{grid-template-columns:1fr 1fr}
      .route-step:nth-child(2){border-right:0}
      .route-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .brand-name{font-size:15px}
      .brand-sub{display:none}
      .page-hero h1{font-size:35px}
      .hero-copy{font-size:16px}
      .topic-panel,.route{grid-template-columns:1fr}
      .route-step{border-right:0;border-bottom:1px solid var(--line)}
      .route-step:last-child{border-bottom:0}
      .route-step:nth-child(2){border-bottom:1px solid var(--line)}
      .lead-panel,.editorial-card,.info-card{padding:25px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .copyright{display:block}
      .copyright span{display:block;margin-top:7px}
    }

/* roulang page: category5 */
:root{
      --plum:#28152f;--plum-2:#3d2047;--plum-3:#65356d;--coral:#f47d62;
      --coral-dark:#d95e49;--mint:#cce9d9;--cream:#fffaf3;--paper:#f7f3f0;
      --ink:#241c26;--muted:#746b76;--line:#e7dfe3;--white:#fff;
      --shadow:0 18px 45px rgba(45,24,48,.11);--shadow-soft:0 8px 24px rgba(45,24,48,.07);
      --radius:18px;--radius-sm:12px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--plum);color:var(--white);position:relative;z-index:10}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--plum);font-weight:900;font-size:20px;box-shadow:4px 4px 0 rgba(204,233,217,.85)}
    .brand-name{font-size:18px;font-weight:800;letter-spacing:.01em}
    .brand-sub{display:block;font-size:11px;color:#d9cbdc;font-weight:500;line-height:1.2;margin-top:2px}
    .main-nav{display:flex;align-items:center;gap:6px}
    .main-nav a{padding:9px 14px;border-radius:9px;color:#dbcddd;font-size:14px;transition:.25s}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white);background:rgba(244,125,98,.16)}
    .main-nav a.active{box-shadow:inset 0 -2px var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--plum)!important;font-weight:800!important;margin-left:7px;box-shadow:0 6px 16px rgba(244,125,98,.2)}
    .nav-download:hover{background:#ff9278!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;border:1px solid #735778;color:#fff;border-radius:9px;padding:8px 11px}
    .page-hero{background:var(--plum);color:#fff;padding:66px 0 76px;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(204,233,217,.18);border-radius:50%;right:-145px;top:-180px;box-shadow:0 0 0 28px rgba(244,125,98,.04),0 0 0 58px rgba(204,233,217,.04)}
    .hero-inner{position:relative;z-index:1;max-width:790px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--coral)}
    .page-hero h1{font-size:clamp(35px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:19px 0 18px}
    .page-hero h1 em{font-style:normal;color:var(--coral)}
    .hero-copy{font-size:18px;color:#dfd3e1;max-width:730px;line-height:1.85;margin:0}
    .breadcrumb{display:flex;gap:9px;flex-wrap:wrap;color:#c9b8cb;font-size:13px;margin-top:28px}
    .breadcrumb a:hover{color:var(--mint)}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
    .section-head h2{font-size:34px;line-height:1.25;margin:10px 0 0;letter-spacing:-.03em}
    .section-head p{color:var(--muted);max-width:510px;margin:0}
    .question-layout{display:grid;grid-template-columns:280px 1fr;gap:52px;align-items:start}
    .topic-panel{background:var(--plum);color:#fff;border-radius:var(--radius);padding:25px;position:sticky;top:24px;box-shadow:var(--shadow)}
    .topic-panel h2{font-size:22px;margin:0 0 18px}
    .topic-list{display:grid;gap:8px}
    .topic-list a{padding:12px 14px;border-radius:10px;color:#dbcddd;font-size:14px;transition:.25s}
    .topic-list a:hover,.topic-list a.active{background:var(--coral);color:var(--plum);font-weight:800}
    .faq-list{border-top:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:0 26px;box-shadow:var(--shadow-soft)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{width:100%;background:none;border:0;text-align:left;padding:21px 4px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question:hover{color:var(--coral-dark)}
    .faq-question span:last-child{color:var(--coral);font-size:23px;line-height:1;transition:.2s}
    .faq-answer{display:none;color:var(--muted);font-size:15px;padding:0 42px 22px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .info-band{background:var(--cream);padding:72px 0}
    .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
    .info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-soft);border-color:#d5b9ce}
    .info-icon{width:42px;height:42px;display:grid;place-items:center;background:var(--mint);border-radius:12px;color:var(--plum);font-weight:900;margin-bottom:18px}
    .info-card h3{font-size:20px;margin:0 0 8px}
    .info-card p{margin:0;color:var(--muted);font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 22px 10px 0;position:relative}
    .step:not(:last-child):after{content:"";position:absolute;right:22px;top:42px;width:35px;border-top:2px solid var(--coral)}
    .step-num{color:var(--coral-dark);font-size:13px;font-weight:900;letter-spacing:.08em}
    .step h3{font-size:18px;margin:10px 0 7px}
    .step p{color:var(--muted);font-size:14px;margin:0;padding-right:25px}
    .cta{padding:70px 0;background:var(--plum);color:#fff;text-align:center}
    .cta h2{font-size:35px;margin:10px 0 12px}
    .cta p{color:#d8cadb;margin:0 auto 26px;max-width:670px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 21px;border-radius:10px;border:1px solid transparent;font-weight:800;transition:.25s;min-height:48px}
    .btn-primary{background:var(--coral);color:var(--plum);box-shadow:0 9px 20px rgba(244,125,98,.2)}
    .btn-primary:hover,.btn-primary:focus{background:#ff967d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(244,125,98,.3)}
    .btn-ghost{border-color:#765579;color:#fff;background:rgba(255,255,255,.03)}
    .btn-ghost:hover,.btn-ghost:focus{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .cta-actions{display:flex;justify-content:center;gap:13px;flex-wrap:wrap}
    .site-footer{background:#1c1021;color:#fff;padding:57px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:58px;padding-bottom:42px}
    .footer-brand .brand{margin-bottom:17px}
    .footer-brand p{color:#bdaebf;font-size:14px;max-width:365px;margin:0}
    .footer-title{font-size:15px;margin:5px 0 16px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:9px}
    .footer-links a{font-size:14px;color:#bdaebf;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .copyright{border-top:1px solid #3b293e;padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#97899a;font-size:12px}
    :focus-visible{outline:3px solid var(--mint);outline-offset:3px}
    @media(max-width:992px){
      .main-nav a{padding:8px 9px;font-size:13px}.question-layout{grid-template-columns:230px 1fr;gap:28px}.steps{grid-template-columns:repeat(2,1fr);gap:15px}.step:not(:last-child):after{display:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:70px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;background:var(--plum-2);padding:12px;border-radius:0 0 14px 14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .main-nav.show{display:flex}.main-nav a{padding:12px 14px}.nav-download{margin:4px 0 0;text-align:center}
      .page-hero{padding:54px 0 59px}.page-hero h1{font-size:38px}.hero-copy{font-size:16px}
      .section{padding:60px 0}.section-head{display:block}.section-head h2{font-size:29px;margin-bottom:12px}
      .question-layout,.info-grid{grid-template-columns:1fr}.topic-panel{position:static}.topic-list{grid-template-columns:repeat(2,1fr)}
      .faq-list{padding:0 17px}.faq-question{font-size:15px}.faq-answer{padding-right:10px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .brand-name{font-size:16px}.brand-sub{font-size:10px}.page-hero h1{font-size:33px}
      .topic-list{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{padding-right:0}
      .info-card{padding:23px}.cta h2{font-size:29px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:6px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}