/* roulang page: index */
:root{
  --ink:#171416;
  --plum:#241d22;
  --plum-2:#30242d;
  --coral:#ff6548;
  --coral-light:#ff8066;
  --lime:#c8ef63;
  --cream:#fff4de;
  --paper:#fffaf0;
  --text:#272127;
  --muted:#afa3a8;
  --line:rgba(39,33,39,.14);
  --line-dark:rgba(255,244,222,.16);
  --shadow:0 18px 50px rgba(23,20,22,.14);
  --radius:18px;
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;background:var(--cream);color:var(--text);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(23,20,22,.96);border-bottom:1px solid var(--line-dark)}
.navbar{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;color:var(--cream);font-weight:900;letter-spacing:-.04em;font-size:19px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-size:18px;box-shadow:4px 4px 0 var(--lime)}
.logo small{display:block;color:var(--lime);font-size:10px;letter-spacing:.08em;line-height:1.1}
.nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
.nav-links a{position:relative;color:#ded3d5;padding:10px 13px;border-radius:9px;font-size:14px;transition:.25s ease}
.nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--plum-2);color:var(--cream)}
.nav-links a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:5px;background:var(--coral)}
.nav-download{background:var(--coral)!important;color:var(--ink)!important;font-weight:800!important;padding:11px 17px!important}
.nav-download:hover{background:var(--coral-light)!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:transparent;color:var(--cream);font-size:25px;padding:8px}
.hero{background:var(--ink);color:var(--cream);overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(200,239,99,.2);border-radius:50%;right:-120px;top:-180px}
.hero:after{content:"";position:absolute;width:200px;height:200px;background-image:radial-gradient(var(--coral) 1.5px,transparent 1.5px);background-size:14px 14px;right:10%;bottom:25px;opacity:.32}
.hero-grid{min-height:620px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:70px;position:relative;z-index:1;padding:76px 0 90px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:22px}
.eyebrow:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.13;letter-spacing:-.065em;max-width:700px}
.hero h1 em{font-style:normal;color:var(--coral)}
.hero-copy{color:#c7babe;max-width:610px;margin:25px 0 30px;font-size:17px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:11px;font-weight:800;transition:.25s ease;border:1px solid transparent}
.btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 0 rgba(255,101,72,.17)}
.btn-primary:hover{background:var(--coral-light);transform:translateY(-2px);box-shadow:0 11px 18px rgba(255,101,72,.2)}
.btn-primary:active,.btn-secondary:active{transform:translateY(1px);box-shadow:none}
.btn-secondary{border-color:rgba(255,244,222,.35);color:var(--cream);background:transparent}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:var(--cream)}
.btn-dark:hover{background:var(--plum-2);transform:translateY(-2px)}
.btn:focus,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
.hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:29px;color:var(--muted);font-size:13px}
.hero-note span{display:flex;align-items:center;gap:7px}.hero-note i{width:7px;height:7px;background:var(--lime);border-radius:50%}
.app-art{min-height:390px;position:relative;display:flex;align-items:center;justify-content:center}
.arc{width:350px;height:350px;border:1px solid rgba(255,101,72,.52);border-radius:50%;position:absolute;transform:rotate(-22deg)}
.arc:before,.arc:after{content:"";position:absolute;background:var(--lime);width:10px;height:10px;border-radius:50%}.arc:before{top:38px;right:57px}.arc:after{bottom:25px;left:43px;background:var(--coral)}
.device{width:225px;height:390px;border:8px solid #3e3039;border-radius:31px;background:var(--cream);box-shadow:22px 24px 0 rgba(0,0,0,.26),0 28px 60px rgba(0,0,0,.42);transform:rotate(7deg);position:relative;z-index:2;overflow:hidden}
.device:before{content:"";width:74px;height:18px;position:absolute;top:0;left:68px;background:#3e3039;border-radius:0 0 13px 13px}
.screen{padding:50px 17px 18px;color:var(--ink);height:100%;background:linear-gradient(150deg,#fff4de 0%,#f3d5b1 100%)}
.screen-brand{font-size:14px;font-weight:900}.screen-label{font-size:10px;color:#856c72;margin-top:4px}
.screen-orb{height:145px;margin:20px 0 17px;border-radius:22px;background:var(--plum);display:grid;place-items:center;position:relative;overflow:hidden}
.screen-orb:after{content:"PG";font-size:58px;font-weight:900;color:var(--coral);transform:rotate(-8deg)}
.screen-row{display:flex;justify-content:space-between;border-bottom:1px solid #d4bdae;padding:10px 0;font-size:11px}.screen-row b{color:var(--plum)}
.side-label{position:absolute;background:var(--lime);color:var(--ink);font-weight:900;font-size:12px;padding:9px 13px;border-radius:9px;right:-25px;top:65px;z-index:3;transform:rotate(-8deg)}
.section{padding:100px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
.section-kicker{color:#b64b38;font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:9px}
.section h2{font-size:clamp(28px,4vw,42px);letter-spacing:-.05em;line-height:1.2}
.section-intro{max-width:490px;color:#75696e}
.topic-strip{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px}
.topic{min-height:170px;padding:27px;border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);position:relative;transition:.25s ease}
.topic:first-child{background:var(--plum);color:var(--cream)}
.topic:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.topic-icon{width:38px;height:38px;border-radius:12px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-weight:900;margin-bottom:22px}
.topic:nth-child(2) .topic-icon{background:var(--lime)}.topic:nth-child(3) .topic-icon{background:#e9a8bd}
.topic h3{font-size:22px;letter-spacing:-.04em;margin-bottom:5px}.topic p{font-size:14px;color:#827579}.topic:first-child p{color:#c6b8bc}
.topic-arrow{position:absolute;right:24px;bottom:25px;color:var(--coral);font-size:21px}
.download-section{background:var(--lime);position:relative;overflow:hidden}.download-section:after{content:"APP";position:absolute;right:3%;bottom:-42px;font-size:170px;line-height:1;font-weight:900;color:rgba(23,20,22,.07)}
.download-grid{display:grid;grid-template-columns:1fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}
.download-grid h2{max-width:560px}.download-copy{color:#4e5140;margin:20px 0 25px;max-width:560px}
.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}.meta-chip{padding:7px 12px;border:1px solid rgba(23,20,22,.28);border-radius:30px;font-size:13px}
.download-panel{background:var(--cream);padding:28px;border-radius:22px;box-shadow:0 18px 35px rgba(23,20,22,.14);max-width:380px;margin-left:auto}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:19px}.panel-top strong{font-size:18px}.status{font-size:11px;background:var(--plum);color:var(--lime);padding:5px 9px;border-radius:6px}
.file-row{display:flex;justify-content:space-between;gap:15px;padding:12px 0;color:#71656a;font-size:13px}.file-row b{color:var(--text);font-weight:700;text-align:right}.security{font-size:12px;color:#8b7e81;margin-top:19px;border-left:3px solid var(--coral);padding-left:12px}
.news-section{background:var(--paper)}.news-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}.featured-news{background:var(--plum);color:var(--cream);border-radius:22px;padding:31px;min-height:330px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.featured-news:after{content:"资讯";position:absolute;right:-8px;bottom:-35px;font-size:130px;font-weight:900;color:rgba(255,101,72,.12)}
.tag{display:inline-flex;width:max-content;background:var(--coral);color:var(--ink);border-radius:5px;padding:4px 9px;font-size:11px;font-weight:900;line-height:1.3}.tag.lime{background:var(--lime)}
.featured-news h3{font-size:28px;line-height:1.3;max-width:450px;margin:24px 0 12px;position:relative;z-index:1}.featured-news p{color:#c8babe;font-size:14px;max-width:450px;position:relative;z-index:1}.news-date{font-size:12px;color:#afa3a8;position:relative;z-index:1}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:95px 1fr auto;align-items:center;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}.news-item:hover{padding-left:8px}.news-date-dark{font-size:12px;color:#967e84}.news-item h3{font-size:17px;line-height:1.45;margin:4px 0}.news-item p{font-size:13px;color:#877a7e;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.read-link{font-size:13px;font-weight:800;color:#b64b38;white-space:nowrap}
.empty-state{padding:35px 20px;border:1px dashed #b7a4a6;border-radius:14px;color:#806f75;text-align:center}.empty-state h3{color:var(--text);margin-bottom:5px}.empty-state a{color:#b64b38;font-weight:800}
.feature-section{background:var(--cream)}.feature-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}.feature-large,.feature-small{border-radius:20px;padding:30px;border:1px solid var(--line);min-height:190px}.feature-large{background:var(--coral);display:flex;justify-content:space-between;gap:25px;align-items:end}.feature-large h3{font-size:28px;max-width:380px;line-height:1.25}.feature-large p,.feature-small p{font-size:14px;margin-top:10px;color:#634e51}.feature-small{background:var(--plum);color:var(--cream);margin-bottom:18px;min-height:0}.feature-small p{color:#c6b8bc}.feature-small:last-child{margin-bottom:0;background:var(--lime);color:var(--ink)}.feature-small:last-child p{color:#4f553d}
.faq-section{background:var(--paper)}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-lead p{color:#83767b;margin-top:17px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:5px 0}summary{list-style:none;cursor:pointer;padding:19px 42px 19px 0;font-weight:800;font-size:17px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:8px;color:#b64b38;font-size:25px;font-weight:400;top:13px}details[open] summary:after{content:"−"}details p{padding:0 40px 20px 0;color:#776b70;font-size:14px}
.bottom-cta{background:var(--plum);color:var(--cream);padding:68px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.cta-inner h2{font-size:clamp(26px,4vw,40px);line-height:1.25}.cta-inner p{color:#c4b5ba;margin-top:8px}.site-footer{background:var(--ink);color:var(--cream);padding:60px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px;padding-bottom:45px}.footer-brand p{color:#9f9297;font-size:14px;max-width:340px;margin-top:15px}.footer-title{font-size:13px;color:var(--lime);font-weight:900;margin-bottom:16px}.footer-links{display:flex;flex-direction:column;gap:9px;color:#b8aab0;font-size:14px}.footer-links a:hover{color:var(--coral)}.footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;color:#81757a;font-size:12px;display:flex;justify-content:space-between;gap:20px}.mobile-panel{display:none}
@media(max-width:1200px){.container{width:min(var(--container),calc(100% - 36px))}.hero-grid{gap:35px}}
@media(max-width:992px){.hero-grid,.download-grid,.news-layout,.faq-layout{grid-template-columns:1fr}.hero-grid{padding-top:65px}.app-art{min-height:430px}.download-panel{margin:0;max-width:none}.topic-strip{grid-template-columns:1fr 1fr}.topic:first-child{grid-column:span 2}.feature-grid{grid-template-columns:1fr}}
@media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:15px 20px 24px;background:var(--plum);flex-direction:column;align-items:stretch;border-top:1px solid var(--line-dark)}.nav-links.open{display:flex}.nav-links a{padding:14px 15px}.nav-links a.active:after{left:15px;right:auto;width:28px;bottom:7px}.nav-download{margin-top:5px;text-align:center}.logo{font-size:16px}.logo small{display:none}.hero-grid{min-height:auto;padding:62px 0 55px}.hero-copy{font-size:16px}.section{padding:72px 0}.section-head{display:block;margin-bottom:27px}.section-intro{margin-top:12px}.cta-inner{display:block}.cta-inner .btn{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-brand{grid-column:span 2}}
@media(max-width:576px){.container{width:min(100% - 30px,var(--container))}.hero h1{font-size:38px}.hero-actions .btn{width:100%}.app-art{transform:scale(.86);margin:-20px 0}.topic-strip{grid-template-columns:1fr}.topic:first-child{grid-column:auto}.topic{min-height:150px;padding:23px}.download-grid{gap:32px}.download-panel{padding:22px}.news-item{grid-template-columns:1fr auto;gap:5px 13px}.news-item .tag{grid-column:span 2}.news-item h3{font-size:16px}.news-item p{grid-column:span 2}.read-link{grid-column:2;grid-row:2}.feature-large{display:block;padding:24px}.feature-large h3{font-size:24px}.feature-small{padding:24px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}

/* roulang page: article */
:root{
      --ink:#171416;
      --plum:#241d22;
      --plum-2:#30242d;
      --coral:#ff6548;
      --coral-light:#ff8066;
      --lime:#c8ef63;
      --cream:#fff4de;
      --paper:#fffaf0;
      --text:#272127;
      --muted:#afa3a8;
      --line:rgba(39,33,39,.14);
      --line-dark:rgba(255,244,222,.16);
      --shadow:0 18px 50px rgba(23,20,22,.14);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(23,20,22,.97);border-bottom:1px solid var(--line-dark)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--cream);font-size:19px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-size:18px;box-shadow:4px 4px 0 var(--lime)}
    .logo small{display:block;color:var(--lime);font-size:10px;letter-spacing:.08em;line-height:1.1}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{position:relative;color:#ded3d5;padding:10px 13px;border-radius:9px;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--plum-2);color:var(--cream)}
    .nav-links a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:5px;background:var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--ink)!important;font-weight:800!important;padding:11px 17px!important}
    .nav-download:hover{background:var(--coral-light)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--cream);font-size:25px;padding:8px}
    .article-hero{background:var(--ink);color:var(--cream);padding:72px 0 76px;position:relative;overflow:hidden}
    .article-hero:before{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(200,239,99,.2);border-radius:50%;right:-150px;top:-240px}
    .article-hero:after{content:"";position:absolute;width:230px;height:170px;right:10%;bottom:0;background-image:radial-gradient(var(--coral) 1.5px,transparent 1.5px);background-size:14px 14px;opacity:.25}
    .article-head{max-width:900px;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:#a99ca2;font-size:13px;margin-bottom:23px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb .current{color:#e5d9d6;max-width:600px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .article-head h1{font-size:clamp(35px,5.3vw,62px);line-height:1.18;letter-spacing:-.06em;margin:0;max-width:900px}
    .article-summary{max-width:770px;color:#c9bdc0;font-size:17px;margin:24px 0 28px}
    .article-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:#b9adb1;font-size:13px}
    .tag{display:inline-flex;width:max-content;background:var(--coral);color:var(--ink);border-radius:5px;padding:4px 10px;font-size:11px;font-weight:900;line-height:1.4}
    .tag.lime{background:var(--lime)}
    .reading-layout{display:grid;grid-template-columns:minmax(0,820px) 250px;gap:58px;align-items:start;padding:82px 0 96px}
    .article-content{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:clamp(28px,5vw,68px);box-shadow:0 12px 35px rgba(39,33,39,.06);overflow:hidden}
    .article-content h2{font-size:32px;line-height:1.3;letter-spacing:-.04em;margin:38px 0 17px}
    .article-content h3{font-size:23px;line-height:1.4;margin:30px 0 13px}
    .article-content p{margin:0 0 22px;color:#51474d}
    .article-content ul,.article-content ol{padding-left:25px;margin:0 0 25px;color:#51474d}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:28px 0;padding:20px 23px;border-left:4px solid var(--coral);background:#fff0d6;color:#5a4b4e;border-radius:0 12px 12px 0}
    .article-content img{border-radius:14px;margin:28px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:25px 0;font-size:14px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px;text-align:left}
    .article-content th{background:#f5e7cc}
    .empty-state{text-align:center;padding:45px 20px}
    .empty-state h2{margin:0 0 12px;font-size:30px}
    .empty-state p{margin-bottom:25px}
    .side-panel{position:sticky;top:105px}
    .side-card{background:var(--plum);color:var(--cream);border-radius:18px;padding:25px;box-shadow:var(--shadow);margin-bottom:18px}
    .side-card h3{font-size:20px;line-height:1.35;margin:0 0 12px}
    .side-card p{color:#c8babe;font-size:14px;margin:0 0 20px}
    .side-card .btn{width:100%}
    .side-list{background:var(--cream);border:1px solid var(--line);border-radius:16px;padding:21px}
    .side-list strong{display:block;font-size:14px;margin-bottom:11px}
    .side-list a{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:#75696e}
    .side-list a:last-child{border-bottom:0}
    .side-list a:hover{color:var(--coral)}
    .article-footer{background:var(--paper);border-top:1px solid var(--line);padding:30px 0 45px}
    .article-nav{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
    .article-nav a{display:flex;flex-direction:column;gap:4px;min-width:220px;padding:17px 20px;border:1px solid var(--line);border-radius:13px;transition:.25s}
    .article-nav a:hover{border-color:var(--coral);transform:translateY(-2px);box-shadow:var(--shadow)}
    .article-nav small{color:#9a8c91;font-size:12px}
    .article-nav b{font-size:14px}
    .cta-strip{background:var(--lime);padding:55px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta-inner h2{font-size:clamp(26px,3.5vw,39px);line-height:1.25;letter-spacing:-.05em;margin:0 0 8px}
    .cta-inner p{margin:0;color:#62575b}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:11px;font-weight:800;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 0 rgba(255,101,72,.17)}
    .btn-primary:hover{background:var(--coral-light);transform:translateY(-2px);box-shadow:0 11px 18px rgba(255,101,72,.2)}
    .btn-dark{background:var(--ink);color:var(--cream)}
    .btn-dark:hover{background:var(--plum-2);transform:translateY(-2px)}
    .btn:focus,a:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .site-footer{background:var(--ink);color:var(--cream);padding:60px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:60px;padding-bottom:45px}
    .footer-brand .logo{margin-bottom:18px}
    .footer-brand p{max-width:390px;color:#afa3a8;font-size:14px;margin:0}
    .footer-title{font-weight:800;color:var(--lime);font-size:13px;margin-bottom:15px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#c7babe;font-size:14px;transition:.2s}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{border-top:1px solid var(--line-dark);padding-top:21px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#8e8186;font-size:12px}
    @media(max-width:1200px){.container{width:min(var(--container),calc(100% - 38px))}.navbar{gap:18px}.nav-links a{padding-left:9px;padding-right:9px}}
    @media(max-width:992px){.reading-layout{grid-template-columns:1fr;gap:30px}.side-panel{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px}.side-card,.side-list{margin:0}.footer-grid{gap:30px}}
    @media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:var(--ink);padding:15px 19px 22px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line-dark)}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-download{text-align:center;margin-top:7px}.article-hero{padding:49px 0 55px}.reading-layout{padding:50px 0 62px}.article-content{padding:29px 23px}.article-content h2{font-size:27px}.cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
    @media(max-width:576px){.container{width:calc(100% - 30px)}.logo{font-size:16px}.logo-mark{width:31px;height:31px}.logo small{font-size:8px}.article-head h1{font-size:35px}.article-summary{font-size:15px}.breadcrumb .current{max-width:250px}.side-panel{grid-template-columns:1fr}.article-nav a{width:100%;min-width:0}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}}

/* roulang page: category1 */
:root{
      --ink:#171416;
      --plum:#241d22;
      --plum-2:#30242d;
      --coral:#ff6548;
      --coral-light:#ff8066;
      --lime:#c8ef63;
      --cream:#fff4de;
      --paper:#fffaf0;
      --text:#272127;
      --muted:#afa3a8;
      --soft:#75696e;
      --line:rgba(39,33,39,.14);
      --line-dark:rgba(255,244,222,.16);
      --shadow:0 18px 50px rgba(23,20,22,.14);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,20,22,.97);border-bottom:1px solid var(--line-dark)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--cream);font-weight:900;letter-spacing:-.04em;font-size:19px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-size:18px;box-shadow:4px 4px 0 var(--lime)}
    .logo small{display:block;color:var(--lime);font-size:10px;letter-spacing:.08em;line-height:1.1}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{position:relative;color:#ded3d5;padding:10px 13px;border-radius:9px;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--plum-2);color:var(--cream)}
    .nav-links a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:5px;background:var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--ink)!important;font-weight:800!important;padding:11px 17px!important}
    .nav-download:hover{background:var(--coral-light)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--cream);font-size:25px;padding:8px}
    .page-hero{background:var(--ink);color:var(--cream);position:relative;overflow:hidden}
    .page-hero:before{content:"PG";position:absolute;right:5%;bottom:-65px;color:rgba(255,101,72,.09);font-size:250px;font-weight:900;line-height:1}
    .page-hero:after{content:"";position:absolute;right:14%;top:35px;width:180px;height:180px;border:1px solid rgba(200,239,99,.28);transform:rotate(18deg)}
    .hero-inner{position:relative;z-index:1;padding:88px 0 82px;max-width:820px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:18px}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
    h1,h2,h3{margin-top:0;font-weight:900;letter-spacing:-.055em;line-height:1.2}
    h1{font-size:clamp(40px,6vw,68px);max-width:780px}
    .hero-inner p{max-width:690px;color:#c7babe;font-size:17px;margin:24px 0 30px}
    .crumbs{display:flex;flex-wrap:wrap;gap:10px;color:#a99ba0;font-size:13px;margin-bottom:26px}
    .crumbs a:hover{color:var(--lime)}
    .crumbs span{color:var(--coral)}
    .actions{display:flex;flex-wrap:wrap;gap:12px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:11px;font-weight:800;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 0 rgba(255,101,72,.17)}
    .btn-primary:hover{background:var(--coral-light);transform:translateY(-2px);box-shadow:0 11px 18px rgba(255,101,72,.2)}
    .btn-secondary{border-color:rgba(255,244,222,.35);color:var(--cream);background:transparent}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--cream)}
    .btn-dark:hover{background:var(--plum-2);transform:translateY(-2px)}
    .btn:focus,a:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .section{padding:92px 0}
    .section.paper{background:var(--paper)}
    .section.plum{background:var(--plum);color:var(--cream)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:38px}
    .section-kicker{color:#b64b38;margin-bottom:10px}
    .plum .section-kicker{color:var(--lime)}
    h2{font-size:clamp(29px,4vw,44px)}
    .section-intro{max-width:510px;color:var(--soft);margin:0}
    .plum .section-intro{color:#c8babe}
    .guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:stretch}
    .guide-panel{background:var(--cream);border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow)}
    .guide-panel.dark{background:var(--plum);color:var(--cream);border-color:transparent}
    .guide-panel h3{font-size:28px;margin-bottom:14px}
    .guide-panel p{color:var(--soft);margin-bottom:24px}
    .dark p{color:#c8babe}
    .point-list{list-style:none;padding:0;margin:0}
    .point-list li{display:flex;gap:14px;padding:15px 0;border-top:1px solid var(--line)}
    .dark .point-list li{border-color:var(--line-dark)}
    .point-list strong{display:block;font-size:16px}
    .point-list small{display:block;color:var(--soft);font-size:13px;margin-top:2px}
    .dark small{color:#afa3a8}
    .point-no{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;border-radius:8px;background:var(--coral);color:var(--ink);font-weight:900;font-size:12px}
    .topic-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .topic-chip{padding:22px 20px;border:1px solid var(--line);background:var(--paper);border-radius:14px;transition:.25s ease}
    .topic-chip:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--coral)}
    .topic-chip b{display:block;font-size:18px;margin-bottom:5px}
    .topic-chip span{color:var(--soft);font-size:13px}
    .download-section{background:var(--lime);position:relative;overflow:hidden}
    .download-section:after{content:"APP";position:absolute;right:3%;bottom:-42px;font-size:170px;line-height:1;font-weight:900;color:rgba(23,20,22,.07)}
    .download-grid{display:grid;grid-template-columns:1fr .85fr;gap:70px;align-items:center;position:relative;z-index:1}
    .download-grid h2{max-width:560px}
    .download-grid p{max-width:590px;color:#5f565a}
    .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
    .meta-chip{padding:7px 12px;border:1px solid rgba(23,20,22,.28);border-radius:30px;font-size:13px}
    .device-card{background:var(--paper);border:1px solid rgba(23,20,22,.16);border-radius:22px;padding:28px;box-shadow:0 18px 45px rgba(23,20,22,.12)}
    .device-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:18px}
    .device-mark{width:50px;height:50px;border-radius:14px;background:var(--coral);display:grid;place-items:center;font-weight:900;font-size:21px;box-shadow:5px 5px 0 var(--plum)}
    .device-card h3{font-size:22px;margin:18px 0 5px}
    .device-card p{font-size:13px;margin:0;color:var(--soft)}
    .info-row{display:flex;justify-content:space-between;gap:15px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
    .info-row b{text-align:right}
    .notice{font-size:12px;color:#73676d;margin-top:18px}
    .timeline{position:relative;max-width:850px;margin:0 auto}
    .timeline:before{content:"";position:absolute;left:18px;top:8px;bottom:8px;width:2px;background:var(--coral)}
    .timeline-item{position:relative;display:grid;grid-template-columns:60px 1fr;gap:24px;padding-bottom:34px}
    .timeline-dot{width:38px;height:38px;border-radius:50%;background:var(--lime);border:7px solid var(--plum);position:relative;z-index:1}
    .timeline-content{background:var(--cream);color:var(--text);border-radius:16px;padding:23px 26px}
    .timeline-content h3{font-size:22px;margin-bottom:7px}
    .timeline-content p{margin:0;color:var(--soft);font-size:14px}
    .faq-wrap{max-width:900px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line);padding:0}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    summary{cursor:pointer;list-style:none;font-weight:800;font-size:18px;padding:23px 42px 23px 0;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:4px;top:18px;font-size:27px;color:var(--coral);font-weight:400}
    details[open] summary:after{content:"−"}
    .faq-answer{color:var(--soft);font-size:15px;padding:0 45px 23px 0}
    .cta-band{background:var(--coral);padding:66px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-band h2{margin-bottom:8px}
    .cta-band p{margin:0;color:#5f2721}
    .site-footer{background:var(--ink);color:var(--cream);padding:62px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:45px}
    .footer-brand p{color:var(--muted);max-width:380px;margin-top:20px;font-size:14px}
    .footer-title{font-weight:900;margin-bottom:17px;color:var(--lime)}
    .footer-links{display:flex;flex-direction:column;gap:9px;color:#c8babe;font-size:14px}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#95878d;font-size:12px}
    @media(max-width:1200px){.navbar{gap:20px}.nav-links a{padding-left:9px;padding-right:9px}.download-grid{gap:40px}}
    @media(max-width:992px){.guide-grid,.download-grid{grid-template-columns:1fr}.topic-strip{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.2fr 1fr 1fr}.hero-inner{padding:72px 0}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 34px))}.navbar{height:68px;justify-content:space-between}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:17px;right:17px;top:75px;background:var(--plum);padding:12px;border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:14px 16px}.nav-links a.active:after{left:16px;right:auto;width:28px;bottom:7px}.nav-download{text-align:center}.hero-inner{padding:62px 0}.section{padding:68px 0}.section-head,.cta-inner{display:block}.section-head .section-intro{margin-top:15px}.cta-inner .btn{margin-top:23px}.footer-grid{grid-template-columns:1fr 1fr;gap:34px}.footer-brand{grid-column:1/-1}}
    @media(max-width:576px){.logo{font-size:16px}.logo small{font-size:8px}.hero-inner h1{font-size:39px}.hero-inner p{font-size:15px}.actions .btn{width:100%}.guide-panel{padding:24px}.topic-strip{grid-template-columns:1fr}.download-grid{gap:28px}.timeline-item{grid-template-columns:42px 1fr;gap:14px}.timeline:before{left:12px}.timeline-dot{width:27px;height:27px;border-width:5px}.timeline-content{padding:19px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}

/* roulang page: category2 */
:root{
      --ink:#171416;--plum:#241d22;--plum-2:#30242d;--coral:#ff6548;--coral-light:#ff8066;
      --lime:#c8ef63;--cream:#fff4de;--paper:#fffaf0;--text:#272127;--muted:#afa3a8;
      --line:rgba(39,33,39,.14);--line-dark:rgba(255,244,222,.16);--shadow:0 18px 50px rgba(23,20,22,.14);
      --radius:18px;--container:1180px
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
    button,input{font:inherit}button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,20,22,.97);border-bottom:1px solid var(--line-dark)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--cream);font-size:19px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-size:18px;box-shadow:4px 4px 0 var(--lime)}
    .logo small{display:block;color:var(--lime);font-size:10px;letter-spacing:.08em;line-height:1.1}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{position:relative;color:#ded3d5;padding:10px 13px;border-radius:9px;font-size:14px;transition:.25s}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--plum-2);color:var(--cream)}
    .nav-links a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:5px;background:var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--ink)!important;font-weight:800!important;padding:11px 17px!important}
    .nav-download:hover{background:var(--coral-light)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--cream);font-size:25px;padding:8px}
    .page-hero{background:var(--ink);color:var(--cream);padding:92px 0 86px;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(200,239,99,.2);border-radius:50%;right:-170px;top:-260px}
    .page-hero:after{content:"";position:absolute;width:210px;height:160px;right:10%;bottom:22px;background-image:radial-gradient(var(--coral) 1.5px,transparent 1.5px);background-size:14px 14px;opacity:.32}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr .72fr;gap:80px;align-items:end}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;margin-bottom:20px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
    h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,5vw,62px);line-height:1.13;letter-spacing:-.065em;margin-bottom:22px}
    .hero-copy{color:#c7babe;max-width:650px;font-size:17px;margin-bottom:29px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:11px;font-weight:800;transition:.25s;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 0 rgba(255,101,72,.17)}
    .btn-primary:hover{background:var(--coral-light);transform:translateY(-2px);box-shadow:0 11px 18px rgba(255,101,72,.2)}
    .btn-secondary{border-color:rgba(255,244,222,.35);color:var(--cream);background:transparent}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--cream)}.btn-dark:hover{background:var(--plum-2);transform:translateY(-2px)}
    .btn:focus,a:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .hero-panel{background:var(--cream);color:var(--text);padding:28px;border-radius:22px;box-shadow:var(--shadow);transform:rotate(2deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:18px;border-bottom:1px solid #d8c8b8}
    .panel-mark{width:42px;height:42px;border-radius:13px;background:var(--coral);display:grid;place-items:center;font-weight:900}
    .panel-status{font-size:12px;color:#6f6267}.panel-status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#62a839;margin-right:6px}
    .panel-title{font-weight:900;font-size:24px;line-height:1.25;margin:25px 0 8px}
    .panel-sub{font-size:13px;color:#75696e}.panel-lines{margin:22px 0}
    .panel-line{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed #d8c8b8;font-size:13px}
    .panel-line b{color:var(--plum)}.panel-tag{display:inline-block;background:var(--lime);padding:5px 10px;border-radius:5px;font-size:11px;font-weight:900}
    .section{padding:92px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    .section-kicker{color:#b64b38;font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:8px}
    h2{font-size:clamp(29px,4vw,43px);line-height:1.2;letter-spacing:-.05em;margin-bottom:0}.section-intro{max-width:500px;color:#75696e}
    .cream-section{background:var(--cream)}.paper-section{background:var(--paper)}
    .info-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
    .info-card{padding:32px;border-radius:20px;background:var(--paper);border:1px solid var(--line);box-shadow:0 10px 30px rgba(39,33,39,.06)}
    .info-card.dark{background:var(--plum);color:var(--cream);border:0}.info-card.dark p{color:#c8babe}
    .number{font-size:44px;font-weight:900;color:var(--coral);line-height:1;margin-bottom:22px}
    .info-card h3{font-size:24px;line-height:1.3;margin-bottom:12px}.info-card p{color:#75696e}
    .feature-list{list-style:none;padding:0;margin:22px 0 0}.feature-list li{padding:14px 0;border-top:1px solid var(--line);display:flex;gap:12px}
    .feature-list li:before{content:"＋";color:var(--coral);font-weight:900}
    .dark .feature-list li{border-color:var(--line-dark)}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .step{padding:28px 26px 30px;border-right:1px solid var(--line)}.step:last-child{border-right:0}
    .step-no{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.1em}.step h3{font-size:20px;margin:17px 0 8px}.step p{color:#75696e;margin-bottom:0;font-size:14px}
    .download-section{background:var(--lime);position:relative;overflow:hidden}.download-section:after{content:"APP";position:absolute;right:4%;bottom:-45px;font-size:170px;line-height:1;font-weight:900;color:rgba(23,20,22,.07)}
    .download-grid{display:grid;grid-template-columns:1fr .75fr;gap:70px;align-items:center;position:relative;z-index:1}
    .download-grid h2{max-width:580px}.download-grid p{max-width:590px;color:#51494c}.download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}
    .meta-chip{padding:7px 12px;border:1px solid rgba(23,20,22,.28);border-radius:30px;font-size:13px}
    .download-note{font-size:13px;color:#665b60;margin-top:17px}.download-art{min-height:270px;background:var(--plum);border-radius:24px;padding:28px;color:var(--cream);position:relative;overflow:hidden}
    .download-art:before{content:"PG";position:absolute;right:-18px;bottom:-42px;font-size:170px;font-weight:900;color:rgba(255,101,72,.16)}
    .art-label{color:var(--lime);font-size:12px;font-weight:900;letter-spacing:.1em}.art-title{font-size:29px;font-weight:900;line-height:1.25;margin:26px 0 12px;max-width:260px}.art-copy{color:#c8babe;font-size:14px;max-width:275px}
    .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:0 4px}summary{list-style:none;cursor:pointer;padding:22px 48px 22px 0;font-size:18px;font-weight:800;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"＋";position:absolute;right:8px;color:var(--coral);font-size:24px;top:18px}details[open] summary:after{content:"−"}details p{color:#75696e;max-width:760px;padding:0 45px 22px 0;margin:0}
    .related{background:var(--plum);color:var(--cream)}.related .section-kicker{color:var(--lime)}.related h2{max-width:560px}
    .related-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.related-link{border:1px solid var(--line-dark);padding:15px 18px;border-radius:12px;transition:.25s}.related-link:hover{border-color:var(--coral);background:var(--plum-2);transform:translateY(-2px)}
    .site-footer{background:var(--ink);color:var(--cream);padding:62px 0 22px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:50px}.footer-brand p{color:var(--muted);max-width:360px;margin-top:20px;font-size:14px}.footer-title{font-size:13px;color:var(--lime);font-weight:900;margin-bottom:16px}.footer-links{display:flex;flex-direction:column;gap:9px;color:#c8babe;font-size:14px}.footer-links a:hover{color:var(--coral)}.footer-bottom{border-top:1px solid var(--line-dark);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#8f8388;font-size:12px}
    @media(max-width:1200px){.container{width:min(var(--container),calc(100% - 36px))}.navbar{gap:18px}.nav-links a{padding-left:9px;padding-right:9px}}
    @media(max-width:992px){.hero-inner,.download-grid,.info-grid{grid-template-columns:1fr;gap:35px}.hero-panel{max-width:540px}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
    @media(max-width:768px){.navbar{height:70px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:18px;right:18px;top:78px;background:var(--plum);padding:14px;border:1px solid var(--line-dark);border-radius:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-download{text-align:center}.page-hero{padding:70px 0}.section{padding:70px 0}.section-head{display:block}.section-intro{margin-top:15px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}}
    @media(max-width:576px){.container{width:min(100% - 28px,var(--container))}.logo{font-size:16px}.logo-mark{width:31px;height:31px}.hero-inner{gap:25px}h1{font-size:38px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}.hero-panel{padding:22px;transform:none}.info-card{padding:24px}.download-grid{gap:22px}.download-art{min-height:230px}.section-head{margin-bottom:25px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}

/* roulang page: category3 */
:root{
      --ink:#171416;--plum:#241d22;--plum-2:#30242d;--coral:#ff6548;
      --coral-light:#ff8066;--lime:#c8ef63;--cream:#fff4de;--paper:#fffaf0;
      --text:#272127;--muted:#afa3a8;--line:rgba(39,33,39,.14);
      --line-dark:rgba(255,244,222,.16);--shadow:0 18px 50px rgba(23,20,22,.14);
      --radius:18px;--container:1180px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(23,20,22,.97);border-bottom:1px solid var(--line-dark)}
    .navbar{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--cream);font-weight:900;letter-spacing:-.04em;font-size:19px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:10px;background:var(--coral);display:grid;place-items:center;color:var(--ink);font-size:18px;box-shadow:4px 4px 0 var(--lime)}
    .logo small{display:block;color:var(--lime);font-size:10px;letter-spacing:.08em;line-height:1.1}
    .nav-links{display:flex;align-items:center;gap:7px;margin-left:auto}
    .nav-links a{position:relative;color:#ded3d5;padding:10px 13px;border-radius:9px;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{background:var(--plum-2);color:var(--cream)}
    .nav-links a.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;border-radius:5px;background:var(--coral)}
    .nav-download{background:var(--coral)!important;color:var(--ink)!important;font-weight:800!important;padding:11px 17px!important}
    .nav-download:hover{background:var(--coral-light)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:var(--cream);font-size:25px;padding:8px}
    .page-hero{background:var(--ink);color:var(--cream);position:relative;overflow:hidden;padding:92px 0 86px}
    .page-hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,239,99,.2);border-radius:50%;right:-170px;top:-220px}
    .page-hero:after{content:"POCKET";position:absolute;right:5%;bottom:-30px;color:rgba(255,101,72,.1);font-size:130px;font-weight:900;letter-spacing:-.08em}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:900;letter-spacing:.12em;margin-bottom:18px}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:4px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(40px,5vw,65px);line-height:1.12;letter-spacing:-.065em;margin-bottom:23px}
    h1 em{font-style:normal;color:var(--coral)}
    .hero-text{max-width:650px;color:#c7babe;font-size:17px;margin-bottom:30px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:11px;font-weight:800;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--coral);color:var(--ink);box-shadow:0 8px 0 rgba(255,101,72,.17)}
    .btn-primary:hover{background:var(--coral-light);transform:translateY(-2px);box-shadow:0 11px 18px rgba(255,101,72,.2)}
    .btn-secondary{border-color:rgba(255,244,222,.35);color:var(--cream);background:transparent}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--ink);color:var(--cream)}
    .btn-dark:hover{background:var(--plum-2);transform:translateY(-2px)}
    .btn:focus,a:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    .brand-panel{background:var(--cream);color:var(--text);border-radius:24px;padding:28px;transform:rotate(2deg);box-shadow:16px 18px 0 rgba(200,239,99,.18)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
    .panel-label{font-size:12px;color:#8b7779;font-weight:800;letter-spacing:.1em}
    .panel-dot{width:12px;height:12px;background:var(--coral);border-radius:50%;box-shadow:18px 0 var(--lime),36px 0 var(--plum)}
    .brand-word{font-size:clamp(27px,4vw,48px);font-weight:950;letter-spacing:-.08em;line-height:1;color:var(--plum);margin:25px 0}
    .panel-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .panel-list span{background:#f2dfc5;border-radius:10px;padding:11px 12px;font-size:13px}
    .section{padding:94px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:38px}
    .section-kicker{color:#b64b38;margin-bottom:10px}
    h2{font-size:clamp(29px,4vw,43px);letter-spacing:-.05em;line-height:1.2;margin-bottom:0}
    .section-intro{max-width:520px;color:#75696e;margin-bottom:0}
    .info-strip{background:var(--plum);color:var(--cream);padding:22px 0}
    .strip-inner{display:flex;justify-content:space-between;gap:24px;align-items:center}
    .strip-inner strong{font-size:20px}
    .strip-inner span{color:#c8babe;font-size:14px}
    .feature-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px}
    .feature-card{background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:34px;min-height:310px;box-shadow:var(--shadow)}
    .feature-card.dark{background:var(--plum);color:var(--cream);position:relative;overflow:hidden}
    .feature-card.dark:after{content:"PG";position:absolute;right:-15px;bottom:-45px;color:rgba(255,101,72,.12);font-size:170px;font-weight:900}
    .tag{display:inline-flex;width:max-content;background:var(--coral);color:var(--ink);border-radius:5px;padding:4px 9px;font-size:11px;font-weight:900;line-height:1.3}
    .tag.lime{background:var(--lime)}
    .feature-card h3{font-size:27px;line-height:1.3;margin:24px 0 12px;position:relative;z-index:1}
    .feature-card p{color:#75696e;max-width:570px}
    .feature-card.dark p{color:#c8babe;position:relative;z-index:1}
    .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:25px;position:relative;z-index:1}
    .feature-list div{border-top:1px solid var(--line-dark);padding-top:10px;color:#ded3d5;font-size:13px}
    .feature-list b{display:block;color:var(--lime);font-size:18px}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step{padding:26px;border-left:4px solid var(--coral);background:#f5e8d2;border-radius:0 16px 16px 0}
    .step-num{font-size:42px;line-height:1;color:var(--coral);font-weight:900}
    .step h3{font-size:20px;margin:20px 0 8px}
    .step p{font-size:14px;color:#75696e;margin-bottom:0}
    .download-section{background:var(--lime);position:relative;overflow:hidden}
    .download-grid{display:grid;grid-template-columns:1fr .8fr;gap:70px;align-items:center}
    .download-grid h2{max-width:580px}
    .download-meta{display:flex;gap:10px;flex-wrap:wrap;margin:23px 0}
    .meta-chip{padding:7px 12px;border:1px solid rgba(23,20,22,.28);border-radius:30px;font-size:13px}
    .download-note{font-size:13px;color:#62575b;max-width:600px}
    .download-card{background:var(--ink);color:var(--cream);border-radius:20px;padding:28px;box-shadow:12px 12px 0 rgba(23,20,22,.12)}
    .download-card h3{font-size:23px;margin:0 0 20px}
    .file-row{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid var(--line-dark);color:#afa3a8;font-size:13px}
    .file-row b{color:var(--cream);font-weight:700;text-align:right}
    .faq-section{background:var(--paper)}
    .faq-wrap{max-width:850px;margin:0 auto}
    details{border-top:1px solid var(--line);padding:0}
    details:last-child{border-bottom:1px solid var(--line)}
    summary{list-style:none;cursor:pointer;padding:22px 4px;font-size:18px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--coral);font-size:25px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:#75696e;padding:0 45px 23px 4px;margin:0;font-size:15px}
    .cta{background:var(--plum);color:var(--cream);padding:70px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{max-width:650px}
    .cta p{color:#c8babe;margin:14px 0 0}
    .site-footer{background:var(--ink);color:var(--cream);padding:64px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:50px}
    .footer-brand p{color:#afa3a8;max-width:360px;font-size:14px;margin-top:20px}
    .footer-title{color:var(--lime);font-size:13px;font-weight:900;margin-bottom:15px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:#c8babe;font-size:14px}
    .footer-links a:hover{color:var(--coral)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line-dark);padding-top:22px;margin-top:45px;color:#887b80;font-size:12px;flex-wrap:wrap}
    @media(max-width:1200px){.hero-inner{gap:40px}.container{width:min(var(--container),calc(100% - 40px))}}
    @media(max-width:992px){.nav-links{gap:2px}.nav-links a{padding:9px 8px;font-size:13px}.hero-inner,.download-grid,.feature-grid{grid-template-columns:1fr}.brand-panel{max-width:650px}.steps{grid-template-columns:1fr 1fr}.cta-inner{align-items:flex-start;flex-direction:column}}
    @media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:var(--ink);padding:14px 24px 22px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line-dark)}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-download{text-align:center;margin-top:8px}.page-hero{padding:70px 0}.hero-inner{display:flex;flex-direction:column;align-items:stretch}.brand-panel{transform:none}.section{padding:70px 0}.section-head{display:block}.section-intro{margin-top:16px}.strip-inner{display:block}.strip-inner span{display:block;margin-top:7px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-brand{grid-column:1/-1}}
    @media(max-width:576px){.container{width:min(100% - 30px,var(--container))}h1{font-size:39px}.hero-text{font-size:15px}.hero-actions .btn{width:100%}.panel-list,.feature-list,.steps{grid-template-columns:1fr}.feature-card{padding:25px}.download-grid{gap:32px}.cta{padding:55px 0}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}

/* 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}