/* roulang page: index */
:root{
  --coral:#f56f4d;
  --coral-dark:#d95639;
  --purple:#28203d;
  --purple-2:#392b53;
  --mint:#b8e4d3;
  --lime:#e5ef9a;
  --cream:#fffaf4;
  --peach:#fff0e8;
  --ink:#272332;
  --muted:#756d7d;
  --line:#eadfd8;
  --white:#fff;
  --radius:18px;
  --shadow:0 14px 40px rgba(53,35,50,.09);
  --container:1220px;
}
*{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(--cream);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none;transition:.25s ease}
button,input{font:inherit}
button{cursor:pointer;border:0}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.8)}
.navbar{height:78px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
.logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
.nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
.nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
.nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
.nav-links a.active{font-weight:700}
.nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
.nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px)}
.menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
.hero{padding:75px 0 88px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:72px;align-items:center}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
.eyebrow:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.13;letter-spacing:-2.6px;margin:19px 0 22px;color:var(--purple);max-width:680px}
.hero h1 span{color:var(--coral)}
.hero-copy{font-size:17px;color:var(--muted);max-width:590px}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:31px}
.btn-secondary{padding:11px 19px;border:1px solid #d9c9c1;border-radius:11px;color:var(--purple);font-weight:700;background:transparent}
.btn-secondary:hover{border-color:var(--coral);color:var(--coral);background:#fff}
.hero-note{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:var(--muted);font-size:13px}
.hero-note strong{color:var(--purple);font-size:18px;margin-right:5px}
.hero-art{position:relative;min-height:390px}
.art-panel{position:absolute;inset:20px 8px 0 20px;border-radius:28px;background:var(--purple);box-shadow:var(--shadow);overflow:hidden;padding:24px;color:#fff}
.art-panel:before,.art-panel:after{content:"";position:absolute;border-radius:50%;filter:blur(1px)}
.art-panel:before{width:210px;height:210px;background:var(--coral);right:-65px;top:-65px;opacity:.85}
.art-panel:after{width:150px;height:150px;background:var(--mint);left:-55px;bottom:-65px}
.art-top{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;color:#ddd5e7}
.art-title{font-size:18px;font-weight:800}
.art-status{font-size:12px;background:rgba(255,255,255,.13);padding:5px 9px;border-radius:20px}
.art-screen{position:relative;z-index:1;margin-top:35px;background:#fffaf5;border-radius:17px;padding:20px;color:var(--ink)}
.screen-bar{display:flex;gap:7px;margin-bottom:20px}.screen-bar i{width:8px;height:8px;border-radius:50%;background:var(--coral)}.screen-bar i:nth-child(2){background:#edcf63}.screen-bar i:nth-child(3){background:#a6d9c0}
.screen-content{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}
.screen-main{height:155px;border-radius:12px;background:linear-gradient(135deg,#fbd6c6,#fff0c9);padding:18px}
.screen-main b{display:block;font-size:22px;color:var(--purple);margin-top:20px}
.screen-side{display:grid;gap:10px}.screen-side div{border-radius:10px;background:#f5eee8;padding:12px;font-size:12px}.screen-side strong{display:block;color:var(--coral-dark);font-size:18px}
.floating-tag{position:absolute;z-index:2;right:-15px;bottom:30px;background:var(--lime);color:var(--purple);padding:13px 17px;border-radius:14px;font-weight:800;box-shadow:var(--shadow)}
.section{padding:82px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin-top:8px}.section-intro{color:var(--muted);max-width:590px}
.quick-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.quick-item{background:#fff;border:1px solid var(--line);padding:21px 15px;border-radius:15px;min-height:125px}.quick-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f2b3a2}.quick-icon{font-size:25px;margin-bottom:10px}.quick-item b{display:block;color:var(--purple);font-size:14px}.quick-item small{color:var(--muted);font-size:12px}
.soft-section{background:var(--peach)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:31px;min-height:260px}.feature-card.dark{background:var(--purple);color:#fff;border-color:var(--purple)}.feature-card.dark h3{color:#fff}.feature-card h3{font-size:23px;color:var(--purple);margin:13px 0 9px}.feature-card p{color:var(--muted)}.dark p{color:#d2c9df}.mini-label{font-size:12px;color:var(--coral-dark);font-weight:800}.dark .mini-label{color:var(--lime)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);padding-top:28px}.step{padding:0 25px 0 0;position:relative}.step:not(:last-child){border-right:1px solid var(--line);margin-right:25px}.step-num{width:35px;height:35px;background:var(--coral);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:800;margin-bottom:17px}.step h3{font-size:17px;color:var(--purple);margin-bottom:5px}.step p{font-size:14px;color:var(--muted)}
.download-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:32px;align-items:center}.phone{width:190px;height:335px;margin:auto;border:9px solid var(--purple);border-radius:32px;background:#fff;box-shadow:var(--shadow);padding:28px 13px 13px;position:relative}.phone:before{content:"";position:absolute;top:10px;left:50%;transform:translateX(-50%);width:55px;height:5px;border-radius:8px;background:#514566}.phone-view{height:100%;border-radius:18px;background:linear-gradient(#ffe0d1 0 27%,#fff8ef 27%);padding:14px}.phone-view b{display:block;color:var(--purple);font-size:17px;margin-top:35px}.phone-view span{display:block;background:var(--coral);height:35px;border-radius:8px;margin-top:22px}.download-copy{background:#fff;border-radius:var(--radius);padding:34px;border:1px solid var(--line)}.download-copy h2{margin-top:8px}.device-tags{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.tag{border-radius:20px;background:#f4ece7;padding:5px 11px;color:var(--purple);font-size:12px;font-weight:700}.download-row{display:flex;align-items:center;gap:18px;margin-top:24px}.qr{width:78px;height:78px;border:7px solid var(--purple);background:repeating-linear-gradient(45deg,#fff 0 4px,#28203d 4px 7px);border-radius:7px}.download-row p{font-size:13px;color:var(--muted)}
.device-grid{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:15px;align-items:stretch}.device{padding:26px;background:#fff;border-radius:15px;border:1px solid var(--line)}.device:nth-child(2){background:var(--mint);border-color:var(--mint);transform:translateY(-13px)}.device h3{color:var(--purple);margin:8px 0}.device p{color:var(--muted);font-size:14px}
.timeline{display:grid;grid-template-columns:1fr 1fr;gap:16px}.timeline-item{display:grid;grid-template-columns:105px 1fr;gap:20px;background:#fff;border-bottom:1px solid var(--line);padding:19px 0}.version{color:var(--coral-dark);font-weight:800}.timeline-item h3{color:var(--purple);font-size:16px}.timeline-item p{font-size:13px;color:var(--muted)}
.news-wrap{display:grid;grid-template-columns:1.3fr .7fr;gap:25px}.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.news-card{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:21px 25px;border-bottom:1px solid var(--line)}.news-card:last-child{border-bottom:0}.news-thumb{height:72px;border-radius:11px;background:linear-gradient(135deg,var(--purple),#75608c);position:relative}.news-thumb:after{content:"PG";position:absolute;right:10px;bottom:4px;color:var(--lime);font-size:25px;font-weight:900}.news-card h3{font-size:16px;color:var(--purple);margin:5px 0}.news-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.news-meta{font-size:12px;color:var(--muted);white-space:nowrap}.news-arrow{color:var(--coral);font-size:20px}
.info-panel{background:var(--purple);border-radius:var(--radius);padding:31px;color:#fff}.info-panel h3{font-size:22px;margin-bottom:10px}.info-panel p,.info-panel li{color:#d7cde1;font-size:14px}.info-panel ul{padding-left:20px;margin-top:12px}.info-panel li{margin:5px 0}
.faq-list{max-width:900px;margin:auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 21px}.faq-item summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--purple);display:flex;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";color:var(--coral);font-size:20px}.faq-item[open] summary:after{content:"－"}.faq-answer{color:var(--muted);padding:0 0 18px;font-size:14px}
.compliance{background:#fff5d9;border:1px solid #f0dba1;border-radius:15px;padding:24px;display:flex;gap:18px;align-items:flex-start}.compliance-icon{font-size:25px}.compliance h3{color:var(--purple);font-size:18px}.compliance p{color:#74664e;font-size:14px}
.final-cta{background:var(--coral);color:#fff;border-radius:22px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}.final-cta h2{color:#fff;font-size:30px}.final-cta p{color:#ffe8df;margin-top:5px}.final-cta .btn-secondary{background:#fff;border-color:#fff;color:var(--purple)}
.site-footer{background:var(--purple);color:#fff;padding:55px 0 25px}.footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:40px}.footer-brand{max-width:300px}.footer-brand .logo{color:#fff;margin-bottom:15px}.footer-brand p{color:#c9bdd5;font-size:13px}.footer-links{display:flex;gap:65px}.footer-links h4{font-size:14px;margin-bottom:13px;color:var(--lime)}.footer-links a{display:block;color:#c9bdd5;font-size:13px;margin:6px 0}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;color:#a99bb8;font-size:12px;display:flex;justify-content:space-between;gap:20px}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
@media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 7px}.hero-grid{gap:35px}.quick-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.navbar{height:68px}.menu-btn{display:block;margin-left:auto}.nav-cta{display:none}.nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:11px 13px}.hero{padding:52px 0 62px}.hero-grid,.download-grid,.news-wrap{grid-template-columns:1fr}.hero-art{min-height:340px}.section{padding:58px 0}.section-head{display:block}.section-head .section-intro{margin-top:12px}.feature-grid,.timeline{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr;gap:28px}.step:not(:last-child){border-right:0;margin-right:0}.device-grid{grid-template-columns:1fr}.device:nth-child(2){transform:none}.footer-top{display:block}.footer-links{margin-top:35px;gap:35px;flex-wrap:wrap}.final-cta{display:block;padding:31px}.final-cta .btn-secondary{display:inline-block;margin-top:20px}}
@media(max-width:520px){body{font-size:14px}.hero h1{font-size:39px;letter-spacing:-1.5px}.hero-art{min-height:285px}.art-panel{inset:10px 0 0}.art-screen{margin-top:25px;padding:13px}.screen-main{height:120px}.screen-main b{font-size:17px;margin-top:14px}.screen-side{display:none}.floating-tag{right:5px;bottom:15px;font-size:12px}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item{min-height:110px}.steps{grid-template-columns:1fr}.news-card{grid-template-columns:72px 1fr;gap:12px;padding:17px}.news-thumb{height:62px}.news-arrow{display:none}.news-meta{grid-column:2}.download-copy{padding:25px}.download-row{align-items:flex-start}.footer-links{gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
      --coral:#f56f4d;--coral-dark:#d95639;--purple:#28203d;--purple-2:#392b53;
      --mint:#b8e4d3;--lime:#e5ef9a;--cream:#fffaf4;--peach:#fff0e8;
      --ink:#272332;--muted:#756d7d;--line:#eadfd8;--white:#fff;
      --radius:18px;--shadow:0 14px 40px rgba(53,35,50,.09);--container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:hover{color:var(--coral-dark)}
    button{font:inherit;border:0;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.8)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
    .nav-links a.active{font-weight:700}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
    .menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
    .article-hero{padding:70px 0 52px;background:linear-gradient(135deg,var(--peach),var(--cream) 62%,#f5f1d8)}
    .breadcrumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb a{color:var(--coral-dark);font-weight:700}
    .breadcrumb span{color:#b9a9a1}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-size:13px;font-weight:800;letter-spacing:.08em}
    .article-label:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
    .article-hero h1{max-width:900px;color:var(--purple);font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-1.8px;margin:15px 0 20px}
    .article-summary{max-width:780px;color:var(--muted);font-size:17px;margin:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:25px;color:var(--muted);font-size:13px}
    .meta-pill{background:#fff;border:1px solid var(--line);border-radius:20px;padding:5px 12px;color:var(--purple);font-weight:700}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 270px;gap:58px;align-items:start;padding:70px 0 90px}
    .article-content{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,54px);box-shadow:var(--shadow);overflow:hidden}
    .article-content h2{color:var(--purple);font-size:28px;line-height:1.35;margin:34px 0 14px}
    .article-content h3{color:var(--purple-2);font-size:20px;margin:27px 0 10px}
    .article-content p{margin:0 0 18px;color:#514957}
    .article-content ul,.article-content ol{padding-left:24px;color:#514957;margin:10px 0 22px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--coral);background:var(--peach);border-radius:0 12px 12px 0;color:var(--purple-2)}
    .article-content table{width:100%;border-collapse:collapse;margin:22px 0;color:#514957}
    .article-content th,.article-content td{padding:12px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--peach);color:var(--purple)}
    .empty-state{text-align:center;padding:50px 20px;background:var(--peach);border-radius:14px;color:var(--muted)}
    .empty-state strong{display:block;color:var(--purple);font-size:22px;margin-bottom:8px}
    .side-panel{position:sticky;top:105px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:15px}
    .side-card h3{font-size:17px;color:var(--purple);margin:0 0 15px}
    .side-card p{font-size:13px;color:var(--muted);margin:0}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{border-bottom:1px solid var(--line);padding:10px 0;color:var(--muted);font-size:13px}
    .side-list li:last-child{border-bottom:0}
    .notice-section{padding:0 0 82px}
    .notice-box{display:flex;gap:18px;align-items:flex-start;background:var(--mint);border-radius:18px;padding:25px 30px}
    .notice-icon{width:36px;height:36px;flex:0 0 36px;border-radius:12px;background:var(--purple);color:#fff;display:grid;place-items:center;font-weight:800}
    .notice-box h2{font-size:21px;color:var(--purple);margin:0 0 5px}
    .notice-box p{margin:0;color:#4e5b59;font-size:14px}
    .related-section{padding:0 0 88px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}
    .section-kicker{color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
    .section h2{font-size:clamp(27px,3vw,38px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin:8px 0 0}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;min-height:170px}
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f2b3a2}
    .related-card .tag{display:inline-block;border-radius:20px;background:#f4ece7;padding:4px 10px;color:var(--purple);font-size:12px;font-weight:700}
    .related-card h3{font-size:17px;color:var(--purple);line-height:1.45;margin:14px 0 8px}
    .related-card p{font-size:13px;color:var(--muted);margin:0}
    .back-row{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
    .btn-secondary{display:inline-block;padding:11px 19px;border:1px solid #d9c9c1;border-radius:11px;color:var(--purple);font-weight:700;background:transparent}
    .btn-secondary:hover{border-color:var(--coral);color:var(--coral);background:#fff}
    .site-footer{background:var(--purple);color:#fff;padding:58px 0 22px}
    .footer-top{display:flex;justify-content:space-between;gap:55px;padding-bottom:38px}
    .footer-brand{max-width:390px}
    .footer-brand .logo{color:#fff}
    .footer-brand .logo-mark{box-shadow:5px 5px 0 var(--lime)}
    .footer-brand p{color:#c7bfd0;font-size:13px;margin:18px 0 0}
    .footer-links{display:grid;grid-template-columns:repeat(3,150px);gap:28px}
    .footer-links h4{font-size:14px;margin:0 0 13px;color:var(--lime)}
    .footer-links a{display:block;color:#c7bfd0;font-size:13px;margin:7px 0}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#aaa1b5;font-size:12px}
    :focus-visible{outline:3px solid rgba(245,111,77,.45);outline-offset:3px}
    @media(max-width:1024px){.nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:28px}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 34px))}.navbar{height:70px;gap:12px}.nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:var(--cream);padding:12px 17px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-cta{margin-left:auto;padding:9px 12px;font-size:13px}.menu-btn{display:block}.article-hero{padding:48px 0 40px}.article-layout{display:block;padding:45px 0 55px}.side-panel{position:static;margin-top:24px}.notice-section{padding-bottom:55px}.related-section{padding-bottom:58px}.related-grid{grid-template-columns:1fr 1fr}.footer-top{display:block}.footer-links{margin-top:32px;grid-template-columns:repeat(3,1fr)}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
    @media(max-width:520px){.logo{font-size:14px}.logo-mark{width:34px;height:34px;font-size:18px}.nav-cta{display:none}.article-hero h1{font-size:32px;letter-spacing:-1px}.article-summary{font-size:15px}.article-meta{gap:8px 12px}.article-content{padding:24px 20px;border-radius:14px}.article-content h2{font-size:24px}.related-grid{grid-template-columns:1fr}.notice-box{padding:20px;display:block}.notice-icon{margin-bottom:12px}.footer-links{gap:12px}.footer-links a{font-size:12px}}

/* roulang page: category1 */
:root{
      --coral:#f56f4d;
      --coral-dark:#d95639;
      --purple:#28203d;
      --purple-2:#392b53;
      --mint:#b8e4d3;
      --lime:#e5ef9a;
      --cream:#fffaf4;
      --peach:#fff0e8;
      --ink:#272332;
      --muted:#756d7d;
      --line:#eadfd8;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 40px rgba(53,35,50,.09);
      --container:1220px;
    }
    *,*::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(--cream);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.8)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
    .nav-links a.active{font-weight:700}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);color:#fff}
    .menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
    .page-top{padding:38px 0 24px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px}
    .breadcrumb a:hover{color:var(--coral)}
    .breadcrumb span:last-child{color:var(--purple);font-weight:700}
    .category-hero{padding:22px 0 76px}
    .category-hero-grid{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(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-2px;color:var(--purple);margin:18px 0 20px}
    h1 span{color:var(--coral)}
    .lead{font-size:17px;color:var(--muted);max-width:680px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .btn-secondary{padding:11px 19px;border:1px solid #d9c9c1;border-radius:11px;color:var(--purple);font-weight:700;background:transparent}
    .btn-secondary:hover{border-color:var(--coral);color:var(--coral);background:#fff}
    .hero-panel{background:var(--purple);border-radius:24px;padding:28px;color:#fff;position:relative;overflow:hidden;min-height:285px;box-shadow:var(--shadow)}
    .hero-panel:after{content:"";position:absolute;width:190px;height:190px;border-radius:50%;background:var(--coral);right:-70px;bottom:-72px;opacity:.85}
    .panel-label{color:var(--mint);font-size:12px;font-weight:800;letter-spacing:.08em}
    .panel-title{font-size:27px;font-weight:800;margin:14px 0 23px;max-width:260px;line-height:1.35}
    .panel-row{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
    .panel-chip{padding:8px 12px;border-radius:10px;background:rgba(255,255,255,.1);font-size:13px}
    .section{padding:78px 0}
    .soft-section{background:var(--peach)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:600px}
    .topic-strip{display:flex;gap:10px;flex-wrap:wrap;padding:18px 0 0}
    .tag{border-radius:20px;background:#f4ece7;padding:6px 13px;color:var(--purple);font-size:12px;font-weight:700}
    .tag.active{background:var(--coral);color:#fff}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .news-card{display:grid;grid-template-columns:112px 1fr auto;gap:22px;align-items:center;padding:22px 26px;border-bottom:1px solid var(--line)}
    .news-card:last-child{border-bottom:0}
    .news-card:hover{background:#fffaf7}
    .news-cover{height:76px;border-radius:12px;background:linear-gradient(135deg,#fbd6c6,#d9f0e3);display:grid;place-items:center;color:var(--purple);font-size:25px;font-weight:900}
    .news-card h3{font-size:17px;color:var(--purple);margin:5px 0 5px}
    .news-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:0}
    .news-meta{font-size:12px;color:var(--muted);white-space:nowrap}
    .news-arrow{color:var(--coral);font-size:22px}
    .empty-state{text-align:center;padding:48px 20px;color:var(--muted)}
    .empty-state strong{display:block;color:var(--purple);font-size:18px;margin-bottom:5px}
    .feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;min-height:205px}
    .feature-card.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
    .feature-card.dark h3,.feature-card.dark p{color:#fff}
    .feature-card h3{font-size:22px;color:var(--purple);margin:14px 0 8px}
    .feature-card p{color:var(--muted);margin-bottom:0}
    .icon-badge{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--lime);color:var(--purple);font-weight:900}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 24px 10px 0;border-right:1px solid var(--line);margin-right:24px}
    .step:last-child{border-right:0;margin-right:0}
    .step-no{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.1em}
    .step h3{font-size:18px;color:var(--purple);margin:9px 0 7px}
    .step p{font-size:13px;color:var(--muted);margin-bottom:0}
    .notice{border-radius:16px;padding:23px 27px;border:1px solid #d8e7dc;background:#f2fbf6;display:flex;gap:16px;align-items:flex-start}
    .notice strong{display:block;color:var(--purple);margin-bottom:4px}
    .notice p{color:var(--muted);margin:0;font-size:14px}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 21px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--purple);display:flex;justify-content:space-between}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:20px}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--muted);padding:0 0 18px;font-size:14px}
    .final-cta{background:var(--coral);color:#fff;border-radius:22px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .final-cta h2{color:#fff;font-size:30px;margin-bottom:4px}
    .final-cta p{color:#ffe8df;margin:0}
    .final-cta .btn-secondary{background:#fff;border-color:#fff}
    .final-cta .btn-secondary:hover{background:var(--lime);border-color:var(--lime);color:var(--purple)}
    .site-footer{background:var(--purple);color:#fff;padding:58px 0 24px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:42px}
    .footer-brand{max-width:380px}
    .footer-brand .logo{color:#fff;margin-bottom:17px}
    .footer-brand p{color:#c8bfd0;font-size:13px}
    .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
    .footer-links h4{font-size:14px;margin-bottom:14px;color:var(--mint)}
    .footer-links a{display:block;color:#c8bfd0;font-size:13px;margin:8px 0}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#aaa0b4;font-size:12px}
    :focus-visible{outline:3px solid rgba(245,111,77,.35);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.navbar{gap:15px}
      .category-hero-grid{gap:35px}.steps{grid-template-columns:repeat(2,1fr);gap:10px}.step{border-right:0;margin:0;border-bottom:1px solid var(--line);padding-bottom:22px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:70px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-cta{display:none}.menu-btn{display:block;margin-left:auto}
      .navbar{height:70px}.category-hero-grid,.feature-grid{grid-template-columns:1fr}.category-hero{padding-bottom:48px}
      .section{padding:55px 0}.section-head{display:block}.section-intro{margin-top:14px}
      .news-card{grid-template-columns:72px 1fr auto;gap:13px;padding:17px 15px}.news-cover{height:66px;font-size:20px}.news-card h3{font-size:15px}.news-meta{display:none}
      .final-cta{display:block;padding:32px 25px}.final-cta .btn-secondary{display:inline-block;margin-top:20px}
      .footer-top{display:block}.footer-links{margin-top:30px;gap:20px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:480px){
      h1{font-size:35px;letter-spacing:-1.2px}.lead{font-size:15px}.hero-actions a{width:100%;text-align:center}
      .hero-panel{min-height:240px;padding:23px}.panel-title{font-size:23px}
      .news-card{grid-template-columns:1fr}.news-cover{height:82px}.news-arrow{display:none}
      .steps{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.footer-links>div:last-child{grid-column:span 2}
    }

/* roulang page: category2 */
:root{
      --coral:#f56f4d;
      --coral-dark:#d95639;
      --purple:#28203d;
      --purple-2:#392b53;
      --mint:#b8e4d3;
      --lime:#e5ef9a;
      --cream:#fffaf4;
      --peach:#fff0e8;
      --ink:#272332;
      --muted:#756d7d;
      --line:#eadfd8;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 40px rgba(53,35,50,.09);
      --container:1220px;
    }
    *{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(--cream);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.85)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
    .nav-links a.active{font-weight:700}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
    .menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
    .page-head{padding:54px 0 42px;background:var(--peach);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--coral-dark)}
    .breadcrumb span{color:#b7a9a0}
    .page-head-grid{display:grid;grid-template-columns:1fr .7fr;gap:50px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-2px;color:var(--purple);margin:15px 0}
    .lead{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:0}
    .head-aside{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
    .head-aside strong{display:block;font-size:25px;color:var(--purple);margin-bottom:5px}
    .head-aside span{color:var(--muted);font-size:13px}
    .section{padding:78px 0}
    .section.alt{background:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:620px;margin-bottom:0}
    .device-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .device-panel{background:var(--purple);color:#fff;border-radius:var(--radius);padding:34px;min-height:310px;position:relative;overflow:hidden}
    .device-panel:after{content:"";position:absolute;width:210px;height:210px;border:35px solid rgba(229,239,154,.22);border-radius:50%;right:-55px;bottom:-75px}
    .device-panel h3{font-size:28px;position:relative;z-index:1}
    .device-panel p{color:#d9d2e3;max-width:450px;position:relative;z-index:1}
    .device-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px;position:relative;z-index:1}
    .device-badge{padding:8px 13px;border-radius:30px;background:rgba(255,255,255,.12);font-size:13px}
    .compat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .compat-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px}
    .compat-card:hover,.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f2b3a2}
    .compat-icon{width:42px;height:42px;border-radius:13px;background:var(--mint);display:grid;place-items:center;color:var(--purple);font-weight:900;margin-bottom:14px}
    .compat-card:nth-child(2) .compat-icon{background:var(--lime)}
    .compat-card h3{font-size:18px;color:var(--purple);margin-bottom:6px}
    .compat-card p{font-size:13px;color:var(--muted);margin-bottom:0}
    .tag-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:24px}
    .tag{border-radius:20px;background:#f4ece7;padding:6px 13px;color:var(--purple);font-size:12px;font-weight:700}
    .tag.selected{background:var(--coral);color:#fff}
    .content-layout{display:grid;grid-template-columns:1fr 300px;gap:25px;align-items:start}
    .article-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    .article-card{display:grid;grid-template-columns:86px 1fr auto;gap:20px;align-items:center;padding:22px 25px;border-bottom:1px solid var(--line)}
    .article-card:last-child{border-bottom:0}
    .article-thumb{width:86px;height:76px;border-radius:12px;background:linear-gradient(135deg,#fbd6c6,#e5ef9a);display:grid;place-items:center;color:var(--purple);font-size:21px;font-weight:900}
    .article-card h3{font-size:17px;color:var(--purple);margin:5px 0 4px}
    .article-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:5px}
    .meta{font-size:12px;color:var(--muted)}
    .article-arrow{color:var(--coral);font-size:22px}
    .side-note{background:var(--mint);border-radius:var(--radius);padding:27px;position:sticky;top:105px}
    .side-note h3{color:var(--purple);font-size:20px}
    .side-note p{color:#4d5b56;font-size:14px}
    .check-list{list-style:none;padding:0;margin:18px 0 0}
    .check-list li{padding:9px 0 9px 25px;border-top:1px solid rgba(40,32,61,.12);font-size:13px;position:relative}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--coral-dark);font-weight:800}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:27px 23px 10px 0;border-right:1px solid var(--line);margin-right:23px}
    .step:last-child{border-right:0;margin-right:0}
    .step-number{color:var(--coral);font-size:13px;font-weight:900;letter-spacing:.08em}
    .step h3{color:var(--purple);font-size:18px;margin:9px 0 7px}
    .step p{color:var(--muted);font-size:13px;margin-bottom:0}
    .notice{display:flex;gap:17px;align-items:flex-start;background:#fff7dc;border:1px solid #f0dfaa;border-radius:15px;padding:22px 25px}
    .notice-mark{width:30px;height:30px;border-radius:50%;background:var(--lime);color:var(--purple);display:grid;place-items:center;font-weight:900;flex:none}
    .notice h3{font-size:17px;color:var(--purple);margin-bottom:5px}
    .notice p{color:var(--muted);font-size:13px;margin-bottom:0}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 21px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--purple);display:flex;justify-content:space-between}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:20px}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--muted);padding:0 0 18px;font-size:14px}
    .final-cta{background:var(--coral);color:#fff;border-radius:22px;padding:42px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .final-cta h2{color:#fff;font-size:30px;margin-bottom:4px}
    .final-cta p{color:#ffe8df;margin-bottom:0}
    .final-cta .btn-secondary{background:#fff;border-color:#fff;color:var(--purple)}
    .site-footer{background:var(--purple);color:#fff;padding:55px 0 24px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px}
    .footer-brand{max-width:390px}
    .footer-brand .logo{color:#fff;margin-bottom:16px}
    .footer-brand p{color:#c8bfd4;font-size:13px}
    .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
    .footer-links h4{font-size:14px;margin-bottom:13px}
    .footer-links a{display:block;color:#c8bfd4;font-size:13px;margin:8px 0}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#ada4bb;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}.navbar{gap:14px}
      .page-head-grid,.device-layout{grid-template-columns:1fr}.head-aside{max-width:500px}
      .content-layout{grid-template-columns:1fr}.side-note{position:static}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:68px}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-cta{display:none}.menu-btn{display:block;margin-left:auto}
      .page-head{padding:38px 0}.section{padding:56px 0}.section-head{display:block}.section-intro{margin-top:12px}
      .steps{grid-template-columns:1fr 1fr;gap:0}.step{border-right:0;border-bottom:1px solid var(--line);padding:22px 14px 22px 0;margin-right:14px}
      .article-card{grid-template-columns:66px 1fr auto;gap:13px;padding:18px 16px}.article-thumb{width:66px;height:62px}
      .final-cta{display:block;padding:30px 25px}.final-cta .btn-secondary{display:inline-block;margin-top:20px}
      .footer-top{display:block}.footer-links{margin-top:28px;gap:20px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      h1{font-size:35px;letter-spacing:-1.3px}.compat-grid{grid-template-columns:1fr}
      .article-card{grid-template-columns:1fr}.article-thumb{width:100%;height:78px}
      .article-arrow{display:none}.steps{grid-template-columns:1fr}.step{margin-right:0}
      .footer-links{grid-template-columns:1fr 1fr}.footer-links div:last-child{grid-column:1/-1}
    }

/* roulang page: category3 */
:root{
      --coral:#f56f4d;
      --coral-dark:#d95639;
      --purple:#28203d;
      --purple-2:#392b53;
      --mint:#b8e4d3;
      --lime:#e5ef9a;
      --cream:#fffaf4;
      --peach:#fff0e8;
      --ink:#272332;
      --muted:#756d7d;
      --line:#eadfd8;
      --white:#fff;
      --radius:18px;
      --shadow:0 14px 40px rgba(53,35,50,.09);
      --container:1220px;
    }
    *{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(--cream);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.8)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
    .nav-links a.active{font-weight:700}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);color:#fff}
    .menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
    .page-top{padding:42px 0 30px;background:var(--peach);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a:hover{color:var(--coral-dark)}
    .breadcrumb span{color:#b7a9a1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-2px;color:var(--purple);max-width:780px;margin:16px 0}
    .lead{font-size:17px;max-width:760px;color:var(--muted);margin-bottom:0}
    .section{padding:76px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:590px}
    .guide-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:stretch}
    .guide-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
    .guide-panel.dark{background:var(--purple);color:#fff;border-color:var(--purple)}
    .guide-panel.dark h3,.guide-panel.dark strong{color:#fff}
    .guide-panel h3{font-size:23px;color:var(--purple);margin:12px 0 9px}
    .guide-panel p{color:var(--muted)}
    .guide-panel.dark p{color:#dcd4e6}
    .topic-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
    .topic{padding:15px;border:1px solid var(--line);border-radius:13px;background:#fffaf7}
    .topic b{display:block;color:var(--purple);font-size:15px}
    .topic small{color:var(--muted);font-size:12px}
    .step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px 21px;min-height:190px}
    .step-number{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;font-weight:800;display:grid;place-items:center;margin-bottom:20px}
    .step h3{font-size:17px;color:var(--purple);margin-bottom:8px}
    .step p{font-size:13px;color:var(--muted);margin-bottom:0}
    .soft-section{background:var(--peach)}
    .scenario-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .scenario{padding:24px;background:#fff;border:1px solid var(--line);border-radius:15px}
    .scenario:nth-child(2){background:var(--mint)}
    .scenario:nth-child(3){background:var(--lime)}
    .scenario h3{font-size:18px;color:var(--purple);margin:12px 0 7px}
    .scenario p{font-size:14px;color:var(--muted);margin-bottom:0}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
    .tag{border-radius:20px;background:#f4ece7;padding:5px 11px;color:var(--purple);font-size:12px;font-weight:700}
    .tip-box{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;padding:25px 28px;background:#fff;border:1px solid #e7cfc4;border-left:5px solid var(--coral);border-radius:15px}
    .tip-icon{width:42px;height:42px;border-radius:13px;background:var(--lime);display:grid;place-items:center;color:var(--purple);font-weight:900;font-size:20px}
    .tip-box h3{color:var(--purple);font-size:19px;margin:3px 0 7px}
    .tip-box p{color:var(--muted);margin-bottom:0}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 21px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--purple);display:flex;justify-content:space-between}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:20px}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--muted);padding:0 0 18px;font-size:14px}
    .final-cta{background:var(--coral);color:#fff;border-radius:22px;padding:40px 48px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .final-cta h2{color:#fff;font-size:30px;margin-bottom:4px}
    .final-cta p{color:#ffe8df;margin-bottom:0}
    .final-cta .btn-secondary{background:#fff;border-color:#fff;color:var(--purple)}
    .final-cta .btn-secondary:hover{background:var(--lime);border-color:var(--lime)}
    .site-footer{background:var(--purple);color:#fff;padding:58px 0 24px}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.14)}
    .footer-brand{max-width:370px}
    .footer-brand .logo{color:#fff;margin-bottom:18px}
    .footer-brand p{color:#cfc7d9;font-size:13px}
    .footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
    .footer-links h4{font-size:14px;margin-bottom:13px;color:var(--lime)}
    .footer-links a{display:block;color:#cfc7d9;font-size:13px;margin:7px 0}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#afa6bd;font-size:12px;padding-top:20px}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links a{padding:8px 8px;font-size:13px}
      .navbar{gap:15px}
      .guide-layout{grid-template-columns:1fr 1fr}
      .step-list{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:70px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:78px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:11px 13px}
      .nav-cta{display:none}
      .menu-btn{display:block;margin-left:auto}
      .page-top{padding:32px 0 28px}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .guide-layout,.scenario-grid{grid-template-columns:1fr}
      .footer-top,.footer-bottom{display:block}
      .footer-links{margin-top:30px;gap:20px}
      .footer-bottom span{display:block;margin-top:8px}
      .final-cta{display:block;padding:30px 25px}
      .final-cta .btn-secondary{display:inline-block;margin-top:20px}
    }
    @media(max-width:520px){
      h1{letter-spacing:-1px}
      .topic-list,.step-list{grid-template-columns:1fr}
      .guide-panel{padding:24px}
      .tip-box{padding:21px 18px;grid-template-columns:1fr}
      .footer-links{grid-template-columns:1fr 1fr}
      .footer-links div:last-child{grid-column:1/-1}
    }

/* roulang page: category4 */
:root{
      --coral:#f56f4d;--coral-dark:#d95639;--purple:#28203d;--purple-2:#392b53;
      --mint:#b8e4d3;--lime:#e5ef9a;--cream:#fffaf4;--peach:#fff0e8;
      --ink:#272332;--muted:#756d7d;--line:#eadfd8;--white:#fff;
      --radius:18px;--shadow:0 14px 40px rgba(53,35,50,.09);--container:1220px;
    }
    *{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(--cream);line-height:1.75;font-size:15px}
    a{color:inherit;text-decoration:none;transition:.25s ease}
    button,input{font:inherit}button{cursor:pointer;border:0}img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,244,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,216,.8)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:37px;height:37px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-size:21px;font-weight:900;box-shadow:5px 5px 0 var(--lime)}
    .logo small{font-size:11px;font-weight:600;color:#8b7f91}
    .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
    .nav-links a{padding:8px 12px;border-radius:10px;color:#62596c;font-size:14px}
    .nav-links a:hover,.nav-links a.active{color:var(--purple);background:var(--peach)}
    .nav-links a.active{font-weight:700}
    .nav-cta,.btn-primary{background:var(--coral);color:#fff;padding:12px 19px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(245,111,77,.2)}
    .nav-cta:hover,.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);color:#fff}
    .menu-btn{display:none;background:var(--purple);color:#fff;border-radius:9px;width:42px;height:40px;font-size:20px}
    .page-head{padding:56px 0 48px;background:var(--peach);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--coral-dark)}
    .breadcrumb span{color:#b5a7a0}
    .page-head-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:end}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--coral-dark);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:3px;border-radius:4px;background:var(--coral)}
    h1,h2,h3,h4,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,60px);line-height:1.16;letter-spacing:-2px;color:var(--purple);margin:16px 0}
    .page-lead{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:0}
    .head-note{background:var(--purple);color:#fff;border-radius:18px;padding:24px 25px;box-shadow:var(--shadow)}
    .head-note strong{display:block;color:var(--lime);font-size:22px;margin-bottom:5px}
    .head-note p{color:#ddd4e5;font-size:13px;margin:0}
    .section{padding:78px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:28px}
    .section h2{font-size:clamp(27px,3vw,40px);line-height:1.25;color:var(--purple);letter-spacing:-1px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:650px;margin:0}
    .topic-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
    .tag{border-radius:20px;background:#f4ece7;padding:6px 13px;color:var(--purple);font-size:12px;font-weight:700;border:1px solid transparent}
    .tag.current{background:var(--purple);color:#fff}
    .tag.mint{background:var(--mint)}
    .tag.lime{background:var(--lime)}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 25px rgba(53,35,50,.04)}
    .news-card{display:grid;grid-template-columns:118px 1fr auto;gap:22px;align-items:center;padding:24px 28px;border-bottom:1px solid var(--line)}
    .news-card:last-child{border-bottom:0}
    .news-card:hover{background:#fffaf7}
    .news-thumb{height:82px;border-radius:13px;background:linear-gradient(135deg,#fbd6c6,#e5ef9a);display:grid;place-items:center;color:var(--purple);font-weight:900;font-size:21px;letter-spacing:-1px}
    .news-card h3{font-size:18px;color:var(--purple);margin:7px 0 5px;line-height:1.4}
    .news-card h3:hover{color:var(--coral-dark)}
    .news-card p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:0}
    .news-meta{font-size:12px;color:var(--muted);white-space:nowrap}
    .news-arrow{color:var(--coral);font-size:23px}
    .empty-state{padding:58px 25px;text-align:center;color:var(--muted)}
    .empty-state strong{display:block;color:var(--purple);font-size:20px;margin-bottom:5px}
    .empty-state span{font-size:14px}
    .more-row{text-align:center;padding-top:27px}
    .btn-secondary{display:inline-block;padding:11px 19px;border:1px solid #d9c9c1;border-radius:11px;color:var(--purple);font-weight:700;background:transparent}
    .btn-secondary:hover{border-color:var(--coral);color:var(--coral);background:#fff}
    .soft-section{background:var(--peach)}
    .update-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:26px;align-items:stretch}
    .timeline{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 28px}
    .timeline-item{display:grid;grid-template-columns:105px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
    .timeline-item:last-child{border-bottom:0}
    .version{color:var(--coral-dark);font-weight:800;font-size:14px}
    .timeline-item h3{color:var(--purple);font-size:17px;margin:0 0 5px}
    .timeline-item p{font-size:13px;color:var(--muted);margin:0}
    .info-card{border-radius:var(--radius);padding:30px;background:var(--purple);color:#fff;position:relative;overflow:hidden}
    .info-card:after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;background:var(--coral);opacity:.22;right:-48px;top:-45px}
    .info-card h3{font-size:24px;position:relative;z-index:1}
    .info-card p{color:#ddd4e5;font-size:14px;position:relative;z-index:1}
    .check-list{padding:0;margin:22px 0 0;list-style:none;position:relative;z-index:1}
    .check-list li{padding:11px 0 11px 27px;border-top:1px solid rgba(255,255,255,.14);color:#f8f0ed;font-size:14px;position:relative}
    .check-list li:before{content:"✓";position:absolute;left:0;color:var(--lime);font-weight:900}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:25px;min-height:190px}
    .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#f2b3a2}
    .feature-card h3{font-size:19px;color:var(--purple);margin:14px 0 8px}
    .feature-card p{color:var(--muted);font-size:14px;margin:0}
    .icon-box{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--mint);color:var(--purple);font-weight:900}
    .notice{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid #e4d6ca;border-left:5px solid var(--coral);border-radius:14px;padding:23px 25px}
    .notice b{display:block;color:var(--purple);margin-bottom:4px}
    .notice p{color:var(--muted);font-size:14px;margin:0}
    .faq-list{max-width:900px;margin:auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 21px}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;color:var(--purple);display:flex;justify-content:space-between}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:20px}
    .faq-item[open] summary:after{content:"－"}
    .faq-answer{color:var(--muted);padding:0 0 18px;font-size:14px}
    .final-cta{background:var(--coral);color:#fff;border-radius:22px;padding:40px 47px;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .final-cta h2{color:#fff;font-size:30px;margin:0 0 5px}
    .final-cta p{color:#ffe8df;margin:0}
    .final-cta .btn-secondary{background:#fff;border-color:#fff;color:var(--purple)}
    .final-cta .btn-secondary:hover{background:var(--lime);border-color:var(--lime)}
    .site-footer{background:var(--purple);color:#fff;padding:55px 0 22px}
    .footer-top{display:flex;justify-content:space-between;gap:60px;padding-bottom:40px}
    .footer-brand{max-width:370px}.footer-brand .logo{color:#fff}.footer-brand p{color:#c9c0d2;font-size:13px;margin:20px 0 0}
    .footer-links{display:grid;grid-template-columns:repeat(3,auto);gap:65px}
    .footer-links h4{font-size:14px;margin:0 0 13px;color:var(--lime)}
    .footer-links a{display:block;color:#d5ccdc;font-size:13px;margin:8px 0}
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#aaa0b4;font-size:12px}
    :focus-visible{outline:3px solid rgba(245,111,77,.45);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:8px 7px;font-size:13px}.navbar{gap:14px}
      .page-head-grid,.update-grid{grid-template-columns:1fr}.head-note{max-width:580px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .navbar{height:70px}.nav-cta{display:none}.menu-btn{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;top:70px;left:0;right:0;background:var(--cream);padding:12px 17px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .page-head{padding:40px 0 38px}.section{padding:58px 0}
      h1{letter-spacing:-1.2px}.section-head{display:block}.section-intro{margin-top:12px}
      .news-card{grid-template-columns:78px 1fr;gap:15px;padding:20px}.news-card .news-arrow{display:none}.news-thumb{height:70px;font-size:16px}.news-meta{grid-column:2}
      .feature-grid{grid-template-columns:1fr 1fr}.final-cta{display:block;padding:31px 27px}.final-cta .btn-secondary{margin-top:20px}
      .footer-top{display:block}.footer-links{margin-top:32px;gap:25px;justify-content:space-between}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .logo{font-size:15px}.logo-mark{width:34px;height:34px;font-size:18px}
      .page-head-grid{gap:25px}.head-note{padding:21px}
      .news-card{grid-template-columns:1fr}.news-card .news-meta{grid-column:1}.news-thumb{width:100%;height:58px}
      .timeline{padding:8px 19px}.timeline-item{grid-template-columns:1fr;gap:3px}
      .feature-grid{grid-template-columns:1fr}.notice{display:block}.notice .icon-box{margin-bottom:13px}
      .footer-links{grid-template-columns:1fr 1fr}.footer-links div:last-child{grid-column:1/-1}
    }