/* roulang page: index */
:root{
  --purple:#7b35e8;
  --purple-dark:#5420ad;
  --purple-soft:#eee7ff;
  --lime:#c9f25b;
  --ink:#17151e;
  --muted:#706b7c;
  --paper:#fbfafc;
  --lavender:#f3effa;
  --line:#e8e2ef;
  --dark:#211b2b;
  --white:#fff;
  --radius:18px;
  --shadow:0 16px 42px rgba(44,25,75,.10);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
button,a{transition:all .22s ease}
button{font:inherit;border:0;cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:76px;background:rgba(251,250,252,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.navbar{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--purple);color:var(--white);display:grid;place-items:center;font-size:15px;box-shadow:4px 5px 0 var(--lime)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-links a{padding:9px 14px;border-radius:10px;color:#615a6d;font-size:14px;font-weight:650}
.nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple-dark)}
.nav-download{background:var(--purple);color:#fff!important;padding:11px 18px!important;border-radius:12px!important;box-shadow:0 7px 16px rgba(123,53,232,.22)}
.nav-download:hover{background:var(--purple-dark)!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--purple-soft);color:var(--purple);width:42px;height:40px;border-radius:10px;font-size:22px}
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:84px 0 76px}
.hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(201,242,91,.2);border-radius:50%;right:-130px;top:-180px}
.hero:after{content:"";position:absolute;width:260px;height:260px;background:var(--purple);border-radius:50%;filter:blur(90px);opacity:.45;right:16%;bottom:-170px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:750;font-size:13px;letter-spacing:.08em;margin-bottom:18px}
.eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--lime)}
.hero h1{font-size:clamp(34px,4.5vw,62px);line-height:1.16;letter-spacing:-2px;max-width:700px;margin-bottom:22px}
.hero h1 span{color:var(--lime)}
.hero-copy{font-size:17px;color:#d6d0df;max-width:590px;margin-bottom:31px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;font-size:15px;font-weight:800;border:1px solid transparent}
.btn-primary{background:var(--lime);color:#252019;box-shadow:0 8px 20px rgba(201,242,91,.18)}
.btn-primary:hover{background:#dbff79;transform:translateY(-2px)}
.btn-secondary{border-color:#61586d;color:#fff;background:rgba(255,255,255,.04)}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
.btn:focus,.nav-links a:focus,.faq-question:focus{outline:3px solid rgba(201,242,91,.55);outline-offset:3px}
.hero-notes{display:flex;gap:24px;margin-top:35px;color:#aaa1b6;font-size:13px}
.hero-notes strong{display:block;color:#fff;font-size:15px;margin-bottom:2px}
.device-stage{min-height:410px;position:relative;display:grid;place-items:center}
.device-glow{position:absolute;width:280px;height:280px;border-radius:50%;background:var(--purple);filter:blur(30px);opacity:.7}
.phone{position:relative;width:230px;height:410px;border:8px solid #4c4258;border-radius:34px;background:#f7f4fb;padding:13px;box-shadow:22px 24px 0 rgba(0,0,0,.16),0 24px 50px rgba(0,0,0,.28);transform:rotate(5deg);z-index:2}
.phone-top{height:23px;width:78px;margin:-5px auto 13px;background:#26202f;border-radius:0 0 12px 12px}
.phone-screen{height:330px;border-radius:21px;background:linear-gradient(150deg,#8650ed,#3e227a);padding:17px;color:#fff;overflow:hidden}
.screen-logo{font-size:14px;font-weight:900;margin-bottom:28px}
.screen-panel{height:75px;border-radius:14px;background:rgba(255,255,255,.16);margin-bottom:13px;padding:13px}
.screen-panel b{display:block;font-size:18px}.screen-panel small{color:#ddd4ee}
.screen-row{height:50px;border-radius:13px;background:#fff;color:var(--purple-dark);margin-top:12px;padding:12px;font-size:13px;font-weight:800}
.float-card{position:absolute;background:#fff;color:var(--ink);border-radius:15px;padding:14px 17px;box-shadow:var(--shadow);z-index:3;font-size:13px;font-weight:700}
.float-card strong{display:block;color:var(--purple);font-size:21px;line-height:1.2}
.float-one{left:4%;top:19%}.float-two{right:0;bottom:14%}
.section{padding:92px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
.section-kicker{color:var(--purple);font-weight:850;font-size:13px;letter-spacing:.1em;margin-bottom:9px}
.section-title{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px}
.section-lead{color:var(--muted);max-width:560px;margin-top:10px}
.text-link{color:var(--purple-dark);font-weight:800;border-bottom:1px solid #cbb8ed;padding-bottom:3px}
.quick-wrap{margin-top:-32px;position:relative;z-index:4}
.quick-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:14px}
.quick-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;display:flex;align-items:center;justify-content:space-between;min-height:112px;box-shadow:0 10px 25px rgba(45,25,75,.06)}
.quick-card:first-child{background:var(--purple);color:#fff;border-color:var(--purple)}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.quick-card h3{font-size:18px;margin-bottom:3px}.quick-card p{font-size:13px;color:var(--muted)}.quick-card:first-child p{color:#ddd1f7}
.quick-icon{width:42px;height:42px;border-radius:13px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-weight:900;font-size:18px}.quick-card:first-child .quick-icon{background:var(--lime);color:var(--ink)}
.download-section{background:var(--lavender)}
.download-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:62px;align-items:start}
.steps{border-left:2px solid #d7c9ed;padding-left:28px}
.step{position:relative;padding:0 0 28px}.step:last-child{padding-bottom:0}
.step:before{content:"";position:absolute;left:-39px;top:3px;width:20px;height:20px;border-radius:50%;background:var(--purple);border:5px solid var(--lavender)}
.step-num{color:var(--purple);font-size:12px;font-weight:900;letter-spacing:.08em}.step h3{font-size:18px;margin:4px 0}.step p{font-size:14px;color:var(--muted)}
.download-panel{background:var(--dark);border-radius:24px;padding:32px;color:#fff;position:relative;overflow:hidden}
.download-panel:after{content:"C7";position:absolute;right:-20px;bottom:-55px;color:rgba(255,255,255,.05);font-size:190px;font-weight:900}
.panel-top{position:relative;z-index:1;display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:26px}.panel-top h3{font-size:25px}.status{font-size:12px;background:rgba(201,242,91,.13);color:var(--lime);padding:6px 10px;border-radius:20px;white-space:nowrap}
.download-box{position:relative;z-index:1;background:#30293b;border:1px solid #494052;border-radius:16px;padding:20px;display:flex;align-items:center;gap:18px}
.qr{width:86px;height:86px;border-radius:8px;background:repeating-conic-gradient(#fff 0 25%,#25202d 0 50%) 0/14px 14px;flex:none}
.download-box h4{font-size:17px;margin-bottom:4px}.download-box p{color:#b9b0c5;font-size:13px;margin-bottom:14px}
.panel-foot{position:relative;z-index:1;color:#aaa0b4;font-size:12px;margin-top:18px}
.highlights{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
.feature-main{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;min-height:285px;position:relative;overflow:hidden}
.feature-main:after{content:"";position:absolute;width:210px;height:210px;border-radius:50%;background:var(--purple-soft);right:-40px;bottom:-70px}
.feature-main h3{font-size:28px;max-width:400px;line-height:1.3;margin:12px 0}.feature-main p{color:var(--muted);max-width:460px}
.feature-mark{font-size:30px;color:var(--purple)}
.feature-side{display:grid;gap:16px}.feature-strip{border-radius:16px;padding:23px;background:var(--ink);color:#fff}.feature-strip:nth-child(2){background:var(--lime);color:var(--ink)}.feature-strip h3{font-size:18px;margin-bottom:4px}.feature-strip p{font-size:13px;opacity:.72}
.news-section{background:#fff}
.news-layout{display:grid;grid-template-columns:1fr .55fr;gap:25px}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}
.news-date{font-size:12px;color:var(--muted)}.news-date b{display:block;color:var(--purple);font-size:18px}.news-item h3{font-size:17px;margin-bottom:4px}.news-item p{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:560px}
.news-tag{display:inline-block;font-size:11px;color:var(--purple-dark);background:var(--purple-soft);padding:3px 8px;border-radius:5px;margin-bottom:5px}
.news-arrow{color:var(--purple);font-size:20px}.news-empty{padding:35px 0;color:var(--muted)}
.news-aside{background:var(--dark);color:#fff;border-radius:20px;padding:29px;align-self:start}.news-aside h3{font-size:23px;margin-bottom:13px}.news-aside p{font-size:14px;color:#c3b9cc;margin-bottom:23px}.aside-list{list-style:none;border-top:1px solid #4a4052}.aside-list li{padding:12px 0;border-bottom:1px solid #4a4052;font-size:13px;color:#ddd3e4}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px}.faq-intro p{color:var(--muted);margin:15px 0 24px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;background:none;padding:20px 4px;text-align:left;font-weight:800;font-size:16px;display:flex;justify-content:space-between;gap:20px}.faq-question span{color:var(--purple);font-size:22px}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
.cta{padding:72px 0;background:var(--dark);color:#fff}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(27px,3vw,40px);line-height:1.25;margin-bottom:10px}.cta p{color:#c9c0d1}.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{background:#17131d;color:#d8d0df;padding:46px 0 25px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;padding-bottom:38px;border-bottom:1px solid #332c39}.footer-brand p{color:#918696;font-size:13px;max-width:310px;margin-top:14px}.footer-title{font-size:13px;color:#fff;margin-bottom:13px}.footer-links{display:grid;gap:8px;color:#988e9f;font-size:13px}.footer-links a:hover{color:var(--lime)}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#756b7d;font-size:12px}
@media(max-width:900px){.hero-grid,.download-layout,.faq-grid{grid-template-columns:1fr;gap:38px}.hero{padding-top:60px}.device-stage{min-height:370px}.news-layout{grid-template-columns:1fr}.highlights{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:13px}}
@media(max-width:700px){.container{width:min(100% - 32px,var(--container))}.site-header{height:68px}.nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fff;border:1px solid var(--line);padding:10px;border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:12px 14px}.nav-download{display:none!important}.menu-toggle{display:block}.navbar{gap:10px}.logo{font-size:15px}.logo-mark{width:30px;height:30px}.hero{padding:52px 0 60px}.hero h1{font-size:36px;letter-spacing:-1.3px}.hero-copy{font-size:15px}.hero-notes{gap:14px;flex-wrap:wrap}.section{padding:65px 0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.quick-grid{grid-template-columns:1fr}.quick-wrap{margin-top:-20px}.download-panel{padding:23px}.download-box{align-items:flex-start}.news-item{grid-template-columns:72px 1fr auto;gap:10px}.news-item p{display:none}.news-item h3{font-size:15px}.news-arrow{font-size:17px}.cta-box{display:block}.cta-actions{margin-top:23px}.footer-grid{grid-template-columns:1fr;gap:27px}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
@media(max-width:420px){.hero h1{font-size:30px}.device-stage{transform:scale(.88);margin:-20px 0}.float-one{left:-2%}.float-two{right:-4%}.panel-top{display:block}.status{display:inline-block;margin-top:10px}.download-box{display:block}.qr{margin-bottom:14px}.btn{width:100%}.hero-actions,.cta-actions{display:grid}.phone{width:210px;height:380px}.phone-screen{height:302px}}

/* roulang page: article */
:root{
      --purple:#7b35e8;
      --purple-dark:#5420ad;
      --purple-soft:#eee7ff;
      --lime:#c9f25b;
      --ink:#17151e;
      --muted:#706b7c;
      --paper:#fbfafc;
      --lavender:#f3effa;
      --line:#e8e2ef;
      --dark:#211b2b;
      --white:#fff;
      --radius:18px;
      --shadow:0 16px 42px rgba(44,25,75,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:all .22s ease}
    button{font:inherit;border:0;cursor:pointer}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:76px;background:rgba(251,250,252,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .navbar{height:100%;display:flex;align-items:center;justify-content:space-between;gap:26px}
    .logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--purple);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:4px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#615a6d;font-size:14px;font-weight:650}
    .nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple-dark)}
    .nav-download{background:var(--purple);color:#fff!important;padding:11px 18px!important;border-radius:12px!important;box-shadow:0 7px 16px rgba(123,53,232,.22)}
    .nav-download:hover{background:var(--purple-dark)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--purple-soft);color:var(--purple);width:42px;height:40px;border-radius:10px;font-size:22px}
    .article-hero{background:var(--dark);color:#fff;padding:62px 0 68px;position:relative;overflow:hidden}
    .article-hero:after{content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(201,242,91,.2);border-radius:50%;right:-130px;top:-180px}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:#b9afc3;font-size:13px;margin-bottom:25px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span{color:#70647b}
    .article-hero-inner{max-width:900px;position:relative;z-index:1}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:14px}
    .article-label:before{content:"";width:23px;height:3px;background:var(--lime);border-radius:5px}
    .article-hero h1{font-size:clamp(31px,4vw,54px);line-height:1.25;letter-spacing:-1.5px;margin:0 0 18px;max-width:850px}
    .article-intro{color:#d6d0df;font-size:17px;max-width:780px;margin:0 0 22px}
    .article-meta{display:flex;align-items:center;gap:16px;color:#aaa1b6;font-size:13px}
    .meta-tag{background:rgba(201,242,91,.13);color:var(--lime);border:1px solid rgba(201,242,91,.3);padding:4px 10px;border-radius:999px}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:54px;align-items:start;padding:72px 0 88px}
    .article-content{background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(25px,4vw,52px);box-shadow:0 12px 32px rgba(44,25,75,.05);overflow:hidden}
    .article-content h2{font-size:28px;line-height:1.35;margin:35px 0 15px;color:var(--ink)}
    .article-content h3{font-size:21px;line-height:1.45;margin:27px 0 11px}
    .article-content p{color:#4d4857;margin:0 0 18px;font-size:16px}
    .article-content ul,.article-content ol{color:#4d4857;padding-left:24px;margin:12px 0 23px}
    .article-content li{padding:4px 0}
    .article-content blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--purple);background:var(--purple-soft);border-radius:0 12px 12px 0;color:var(--purple-dark)}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;min-width:520px}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left}
    .article-content th{background:var(--lavender);color:var(--purple-dark)}
    .table-scroll{overflow-x:auto}
    .article-content a{color:var(--purple-dark);font-weight:700;text-decoration:underline;text-decoration-color:#cbb8ed;text-underline-offset:4px}
    .article-side{position:sticky;top:100px}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 10px 25px rgba(45,25,75,.06);margin-bottom:16px}
    .side-card.dark{background:var(--dark);color:#fff;border-color:var(--dark)}
    .side-card h3{font-size:18px;margin:0 0 8px}
    .side-card p{font-size:13px;color:var(--muted);margin:0 0 16px}
    .dark p{color:#bbb1c6}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:47px;padding:0 19px;border-radius:12px;font-size:14px;font-weight:800;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:#252019;box-shadow:0 8px 20px rgba(201,242,91,.18)}
    .btn-primary:hover{background:#dcff79;transform:translateY(-2px)}
    .btn-purple{background:var(--purple);color:#fff}
    .btn-purple:hover{background:var(--purple-dark);transform:translateY(-2px)}
    .btn-block{width:100%}
    .not-found{text-align:center;padding:28px 10px}
    .not-found h2{margin-top:0}
    .not-found p{color:var(--muted)}
    .cta{background:var(--dark);color:#fff;padding:62px 0}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(25px,3vw,37px);line-height:1.3;margin:0 0 8px}
    .cta p{color:#c5bdce;margin:0;max-width:650px}
    .site-footer{background:#17131d;color:#fff;padding:48px 0 24px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1.3fr;gap:38px;padding-bottom:38px}
    .footer-brand p{color:#a9a0b2;font-size:13px;max-width:310px;margin:15px 0 0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:13px;color:var(--lime)}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#b9b0c1}
    .footer-links a:hover{color:var(--lime);transform:translateX(3px)}
    .copyright{border-top:1px solid #332c3a;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#82788c;font-size:12px}
    .btn:focus,.nav-links a:focus{outline:3px solid rgba(201,242,91,.55);outline-offset:3px}
    @media(max-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:28px}}
    @media(max-width:768px){
      .container{width:min(100% - 34px,var(--container))}
      .site-header{height:68px}.navbar{gap:10px}.logo{font-size:15px}.logo-mark{width:31px;height:31px}
      .menu-toggle{display:block}.nav-links{display:none;position:absolute;left:17px;right:17px;top:75px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}.nav-links a{display:block}.nav-download{order:-1;text-align:center}
      .article-hero{padding:46px 0 52px}.article-layout{display:block;padding:42px 0 58px}.article-side{position:static;margin-top:22px}
      .cta-box{display:block}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .article-hero h1{font-size:30px;letter-spacing:-.8px}.article-intro{font-size:15px}.article-meta{flex-wrap:wrap}
      .article-content{padding:23px 19px;border-radius:16px}.article-content h2{font-size:24px}.article-content p{font-size:15px}
      .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}
    }

/* roulang page: category1 */
:root{
      --purple:#7b35e8;
      --purple-dark:#5420ad;
      --purple-soft:#eee7ff;
      --lime:#c9f25b;
      --ink:#17151e;
      --muted:#706b7c;
      --paper:#fbfafc;
      --lavender:#f3effa;
      --line:#e8e2ef;
      --dark:#211b2b;
      --white:#fff;
      --radius:18px;
      --shadow:0 16px 42px rgba(44,25,75,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none;transition:all .22s ease}
    button{font:inherit;border:0;cursor:pointer;transition:all .22s ease}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(251,250,252,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .navbar{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--purple);color:var(--white);display:grid;place-items:center;font-size:15px;box-shadow:4px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#615a6d;font-size:14px;font-weight:650}
    .nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple-dark)}
    .nav-links .nav-download{background:var(--purple);color:#fff!important;padding:11px 18px!important;border-radius:12px!important;box-shadow:0 7px 16px rgba(123,53,232,.22)}
    .nav-links .nav-download:hover{background:var(--purple-dark)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--purple-soft);color:var(--purple);width:42px;height:40px;border-radius:10px;font-size:22px}
    .page-hero{background:var(--dark);color:#fff;padding:67px 0 64px;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;width:410px;height:410px;border:1px solid rgba(201,242,91,.2);border-radius:50%;right:-100px;top:-180px}
    .page-hero:after{content:"";position:absolute;width:300px;height:190px;background:var(--purple);filter:blur(95px);opacity:.42;right:25%;bottom:-125px}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#aaa1b6;font-size:13px;margin-bottom:25px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb span{color:#655b6f}
    .hero-copy{position:relative;z-index:1;max-width:760px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:750;font-size:13px;letter-spacing:.08em;margin-bottom:17px}
    .eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--lime)}
    h1{font-size:clamp(35px,5vw,60px);line-height:1.18;letter-spacing:-2px;margin:0 0 20px}
    .page-hero p{font-size:17px;color:#d6d0df;max-width:680px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;font-size:15px;font-weight:800;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:#252019;box-shadow:0 8px 20px rgba(201,242,91,.18)}
    .btn-primary:hover{background:#dbff79;transform:translateY(-2px)}
    .btn-secondary{border-color:#61586d;color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .btn:focus,.nav-links a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(201,242,91,.55);outline-offset:3px}
    .section{padding:84px 0}
    .section-alt{background:var(--lavender)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--purple);font-weight:850;font-size:13px;letter-spacing:.1em;margin-bottom:9px}
    .section-title{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-lead{color:var(--muted);max-width:590px;margin:10px 0 0}
    .text-link{color:var(--purple-dark);font-weight:800;border-bottom:1px solid #cbb8ed;padding-bottom:3px}
    .download-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:26px;align-items:stretch}
    .steps-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px 32px;box-shadow:0 10px 28px rgba(45,25,75,.05)}
    .steps-panel h2{font-size:27px;margin:0 0 24px}
    .step{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:19px 0;border-top:1px solid var(--line)}
    .step:first-of-type{border-top:0;padding-top:0}
    .step-num{width:34px;height:34px;border-radius:11px;background:var(--purple-soft);color:var(--purple-dark);display:grid;place-items:center;font-weight:900}
    .step h3{font-size:17px;margin:0 0 3px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .download-card{background:var(--purple);border-radius:22px;padding:34px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow)}
    .download-card:after{content:"";width:240px;height:240px;border:1px solid rgba(255,255,255,.2);border-radius:50%;position:absolute;right:-85px;bottom:-90px}
    .download-card h2{font-size:29px;line-height:1.3;margin:0 0 12px;position:relative;z-index:1}
    .download-card p{color:#e6dafa;font-size:14px;margin:0 0 26px;max-width:430px;position:relative;z-index:1}
    .entry-box{background:#fff;color:var(--ink);border-radius:16px;padding:20px;position:relative;z-index:1}
    .entry-label{font-size:12px;color:var(--muted);margin-bottom:9px}
    .entry-row{display:flex;align-items:center;gap:13px}
    .entry-symbol{width:48px;height:48px;background:var(--lime);border-radius:14px;display:grid;place-items:center;font-weight:900;color:var(--ink)}
    .entry-row strong{display:block;font-size:16px}
    .entry-row small{color:var(--muted);font-size:12px}
    .entry-box .btn{width:100%;margin-top:18px}
    .notice{display:flex;gap:10px;align-items:flex-start;margin-top:20px;color:#ded2f0;font-size:12px;position:relative;z-index:1}
    .notice b{color:var(--lime)}
    .check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .check-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px;min-height:160px;transition:all .22s ease}
    .check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6c5f1}
    .check-icon{width:40px;height:40px;border-radius:12px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-size:20px;margin-bottom:14px}
    .check-card h3{font-size:18px;margin:0 0 6px}
    .check-card p{font-size:13px;color:var(--muted);margin:0}
    .guide-band{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}
    .guide-copy h2{font-size:34px;line-height:1.3;margin:0 0 15px}
    .guide-copy p{color:var(--muted);max-width:560px}
    .guide-list{list-style:none;margin:21px 0 0;padding:0;display:grid;gap:12px}
    .guide-list li{display:flex;gap:11px;align-items:flex-start;font-size:14px}
    .guide-list li:before{content:"✓";width:22px;height:22px;flex:0 0 22px;border-radius:50%;display:grid;place-items:center;background:var(--lime);font-weight:900}
    .device-note{min-height:300px;background:var(--dark);border-radius:22px;position:relative;overflow:hidden;display:grid;place-items:center;color:#fff}
    .device-note:before{content:"";position:absolute;width:270px;height:270px;border:1px solid rgba(201,242,91,.3);border-radius:50%}
    .device-outline{width:178px;height:235px;border:7px solid #fff;border-radius:25px;padding:20px 13px;position:relative;z-index:1;background:#2d2539;box-shadow:0 0 0 1px rgba(255,255,255,.18)}
    .device-top{height:7px;width:52px;background:#70647c;border-radius:9px;margin:0 auto 22px}
    .device-line{height:32px;border-radius:9px;background:var(--purple);margin:9px 0}
    .device-line.light{background:var(--lime)}
    .device-caption{position:absolute;bottom:21px;left:0;right:0;text-align:center;color:#d6d0df;font-size:13px}
    .faq-wrap{max-width:850px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line);background:#fff}
    .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:21px 4px;background:transparent;color:var(--ink);font-size:16px;font-weight:800}
    .faq-question span:last-child{font-size:24px;color:var(--purple);font-weight:400;line-height:1}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 21px 4px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta{background:var(--dark);color:#fff;border-radius:22px;padding:39px 44px;display:flex;align-items:center;justify-content:space-between;gap:25px;position:relative;overflow:hidden}
    .cta:after{content:"";position:absolute;width:230px;height:230px;border-radius:50%;border:1px solid rgba(201,242,91,.22);right:110px;top:-150px}
    .cta h2{font-size:29px;line-height:1.3;margin:0 0 8px;position:relative;z-index:1}
    .cta p{color:#c9c0d3;margin:0;position:relative;z-index:1}
    .cta .btn{position:relative;z-index:1;white-space:nowrap}
    .site-footer{background:#18141e;color:#fff;padding:52px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px;padding-bottom:38px}
    .footer-brand .logo{margin-bottom:14px}
    .footer-brand p{font-size:13px;color:#a79eae;max-width:300px;margin:0}
    .footer-title{font-size:14px;font-weight:800;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#aaa1b1}
    .footer-links a:hover{color:var(--lime)}
    .copyright{border-top:1px solid #342d3b;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#82788a;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:2px}
      .nav-links a{padding-left:9px;padding-right:9px}
      .download-layout,.guide-band{grid-template-columns:1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}
      .navbar{gap:10px}
      .logo{font-size:15px}
      .logo-mark{width:31px;height:31px}
      .menu-toggle{display:block;margin-left:auto}
      .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links .nav-download{text-align:center;margin-top:4px}
      .page-hero{padding:47px 0 52px}
      h1{letter-spacing:-1px}
      .section{padding:62px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-head .text-link{display:inline-block;margin-top:13px}
      .download-layout,.guide-band{grid-template-columns:1fr}
      .check-grid{grid-template-columns:1fr}
      .check-card{min-height:auto}
      .device-note{min-height:260px}
      .cta{display:block;padding:30px 25px}
      .cta .btn{margin-top:23px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block}
      .copyright span{display:block;margin-top:5px}
    }
    @media(max-width:520px){
      .hero-actions{display:grid}
      .hero-actions .btn{width:100%}
      .steps-panel,.download-card{padding:24px 20px}
      .download-card h2{font-size:25px}
      .entry-row strong{font-size:14px}
      .guide-copy h2{font-size:28px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .breadcrumb{font-size:12px;flex-wrap:wrap}
    }

/* roulang page: category2 */
:root{
  --purple:#7b35e8;
  --purple-dark:#5420ad;
  --purple-soft:#eee7ff;
  --lime:#c9f25b;
  --ink:#17151e;
  --muted:#706b7c;
  --paper:#fbfafc;
  --lavender:#f3effa;
  --line:#e8e2ef;
  --dark:#211b2b;
  --white:#fff;
  --radius:18px;
  --shadow:0 16px 42px rgba(44,25,75,.10);
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none;transition:all .22s ease}
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{height:76px;background:rgba(251,250,252,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.navbar{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--purple);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:4px 5px 0 var(--lime)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-links a{padding:9px 14px;border-radius:10px;color:#615a6d;font-size:14px;font-weight:650}
.nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple-dark)}
.nav-download{background:var(--purple);color:#fff!important;padding:11px 18px!important;border-radius:12px!important;box-shadow:0 7px 16px rgba(123,53,232,.22)}
.nav-download:hover{background:var(--purple-dark)!important;transform:translateY(-2px)}
.menu-toggle{display:none;background:var(--purple-soft);color:var(--purple);width:42px;height:40px;border-radius:10px;font-size:22px}
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:76px 0 70px}
.hero:before{content:"";position:absolute;width:470px;height:470px;border:1px solid rgba(201,242,91,.2);border-radius:50%;right:-120px;top:-180px}
.hero:after{content:"";position:absolute;width:280px;height:280px;background:var(--purple);border-radius:50%;filter:blur(90px);opacity:.42;right:18%;bottom:-180px}
.hero-inner{position:relative;z-index:1;max-width:820px}
.eyebrow,.section-kicker{color:var(--lime);font-size:13px;font-weight:850;letter-spacing:.1em}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
.eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--lime)}
.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.16;letter-spacing:-2px;margin:0 0 20px}
.hero-copy{font-size:17px;color:#d6d0df;max-width:690px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;font-size:15px;font-weight:800;border:1px solid transparent}
.btn-primary{background:var(--lime);color:#252019;box-shadow:0 8px 20px rgba(201,242,91,.18)}
.btn-primary:hover{background:#dbff79;transform:translateY(-2px)}
.btn-secondary{border-color:#61586d;color:#fff;background:rgba(255,255,255,.04)}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
.btn-purple{background:var(--purple);color:#fff}
.btn-purple:hover{background:var(--purple-dark);transform:translateY(-2px)}
.btn:focus,.nav-links a:focus,.faq-question:focus{outline:3px solid rgba(201,242,91,.55);outline-offset:3px}
.hero-meta{display:flex;gap:28px;flex-wrap:wrap;margin-top:34px;color:#aaa1b6;font-size:13px}
.hero-meta strong{display:block;color:#fff;font-size:15px;margin-bottom:2px}
.section{padding:88px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:32px}
.section-kicker{color:var(--purple);margin-bottom:8px}
.section-title{font-size:clamp(28px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
.section-lead{color:var(--muted);max-width:590px;margin:10px 0 0}
.text-link{color:var(--purple-dark);font-weight:800;border-bottom:1px solid #cbb8ed;padding-bottom:3px;white-space:nowrap}
.news-feature{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.feature-card{border-radius:22px;min-height:300px;padding:34px;background:var(--purple);color:#fff;position:relative;overflow:hidden}
.feature-card:after{content:"C7";position:absolute;right:20px;bottom:-42px;font-size:180px;font-weight:900;color:rgba(255,255,255,.09);line-height:1}
.feature-card>*{position:relative;z-index:1}
.badge{display:inline-flex;align-items:center;border-radius:30px;padding:6px 11px;background:var(--purple-soft);color:var(--purple-dark);font-size:12px;font-weight:800}
.feature-card .badge{background:var(--lime);color:var(--ink)}
.feature-card h2{font-size:30px;line-height:1.35;max-width:520px;margin:22px 0 13px}
.feature-card p{color:#e6dcfa;max-width:520px}
.feature-card .feature-link{display:inline-block;margin-top:16px;font-weight:800;color:var(--lime)}
.update-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.update-panel h3{font-size:20px;margin:13px 0 8px}
.update-panel p{font-size:14px;color:var(--muted);margin:0 0 20px}
.signal-list{display:grid;gap:12px}
.signal{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-top:1px solid var(--line);font-size:14px}
.signal i{width:9px;height:9px;background:var(--lime);border-radius:50%;margin-top:8px;flex:none}
.signal strong{display:block;font-size:14px}
.signal span{display:block;color:var(--muted);font-size:12px}
.topic-section{background:var(--lavender)}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.topic-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;min-height:180px;transition:.22s}
.topic-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d6c4f5}
.topic-icon{width:42px;height:42px;border-radius:13px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-weight:900;margin-bottom:18px}
.topic-card h3{font-size:19px;margin:0 0 7px}
.topic-card p{color:var(--muted);font-size:14px;margin:0}
.timeline-wrap{display:grid;grid-template-columns:250px 1fr;gap:60px}
.date-index{border-left:3px solid var(--purple);padding-left:20px}
.date-index strong{font-size:42px;color:var(--purple);line-height:1}
.date-index p{color:var(--muted);font-size:14px;margin:10px 0 22px}
.date-index .badge{margin-top:5px}
.timeline{border-top:1px solid var(--line)}
.timeline-item{display:grid;grid-template-columns:125px 1fr auto;gap:22px;align-items:start;padding:23px 0;border-bottom:1px solid var(--line)}
.timeline-date{font-size:13px;color:var(--purple-dark);font-weight:800;padding-top:3px}
.timeline-item h3{font-size:18px;margin:0 0 5px}
.timeline-item p{font-size:13px;color:var(--muted);margin:0;max-width:610px}
.arrow{color:var(--purple);font-size:22px}
.guide-strip{display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px 32px}
.guide-strip h2{font-size:25px;margin:0 0 6px}
.guide-strip p{color:var(--muted);margin:0}
.faq-section{background:#fff}
.faq-list{max-width:850px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;padding:20px 4px;background:none;text-align:left;display:flex;align-items:center;justify-content:space-between;font-size:17px;font-weight:800;color:var(--ink)}
.faq-question span:last-child{color:var(--purple);font-size:24px;font-weight:400}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 38px 20px 4px}
.faq-item.open .faq-answer{display:block}
.cta{background:var(--dark);color:#fff;border-radius:24px;padding:48px;position:relative;overflow:hidden}
.cta:after{content:"";position:absolute;width:240px;height:240px;border:1px solid rgba(201,242,91,.25);border-radius:50%;right:-50px;top:-90px}
.cta-content{position:relative;z-index:1;max-width:720px}
.cta h2{font-size:clamp(27px,4vw,42px);line-height:1.25;margin:0 0 12px}
.cta p{color:#cfc6da;margin:0 0 24px}
.site-footer{background:#17131d;color:#fff;padding:48px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:35px;padding-bottom:35px}
.footer-brand .logo{color:#fff}
.footer-brand p{color:#a9a0b1;font-size:13px;max-width:290px;margin:16px 0 0}
.footer-title{font-size:14px;font-weight:800;color:var(--lime);margin-bottom:14px}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#b9b0c1;font-size:13px}
.footer-links a:hover{color:var(--lime);padding-left:4px}
.copyright{border-top:1px solid #342d3b;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#887f90;font-size:12px}
@media(max-width:900px){
  .nav-links{gap:2px}
  .nav-links a{padding:8px 9px;font-size:13px}
  .news-feature,.timeline-wrap{grid-template-columns:1fr}
  .timeline-wrap{gap:28px}
  .date-index{border-left:0;border-bottom:1px solid var(--line);padding:0 0 20px}
}
@media(max-width:768px){
  .container{width:min(var(--container),calc(100% - 32px))}
  .site-header{height:68px}
  .navbar{gap:10px}
  .logo{font-size:15px}
  .logo-mark{width:31px;height:31px}
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);margin:0}
  .nav-links.show{display:grid}
  .nav-links a{padding:12px 14px}
  .nav-download{display:none!important}
  .hero{padding:58px 0 55px}
  .hero h1{letter-spacing:-1px}
  .section{padding:62px 0}
  .section-head{display:block}
  .section-head .text-link{display:inline-block;margin-top:15px}
  .topic-grid{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:92px 1fr auto;gap:12px}
  .guide-strip{grid-template-columns:1fr;padding:24px}
  .cta{padding:32px 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .hero h1{font-size:35px}
  .hero-copy{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:14px}
  .feature-card{padding:25px;min-height:330px}
  .feature-card h2{font-size:25px}
  .update-panel{padding:22px}
  .timeline-item{grid-template-columns:1fr auto}
  .timeline-date{grid-column:1/-1}
  .timeline-item h3{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .copyright{display:block}
  .copyright span{display:block;margin-top:5px}
}

/* roulang page: category3 */
:root{
      --purple:#7b35e8;
      --purple-dark:#5420ad;
      --purple-soft:#eee7ff;
      --lime:#c9f25b;
      --ink:#17151e;
      --muted:#706b7c;
      --paper:#fbfafc;
      --lavender:#f3effa;
      --line:#e8e2ef;
      --dark:#211b2b;
      --white:#fff;
      --radius:18px;
      --shadow:0 16px 42px rgba(44,25,75,.10);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit;border:0;cursor:pointer}
    button,a{transition:all .22s ease}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(251,250,252,.95);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .navbar{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--purple);color:var(--white);display:grid;place-items:center;font-size:15px;box-shadow:4px 5px 0 var(--lime)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:9px 14px;border-radius:10px;color:#615a6d;font-size:14px;font-weight:650}
    .nav-links a:hover,.nav-links a.active{background:var(--purple-soft);color:var(--purple-dark)}
    .nav-links .nav-download{background:var(--purple);color:#fff!important;padding:11px 18px!important;border-radius:12px!important;box-shadow:0 7px 16px rgba(123,53,232,.22)}
    .nav-links .nav-download:hover{background:var(--purple-dark)!important;transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--purple-soft);color:var(--purple);width:42px;height:40px;border-radius:10px;font-size:22px}
    .page-hero{background:var(--dark);color:#fff;padding:74px 0 68px;position:relative;overflow:hidden}
    .page-hero:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(201,242,91,.2);border-radius:50%;right:-120px;top:-210px}
    .page-hero:after{content:"";position:absolute;width:290px;height:290px;background:var(--purple);border-radius:50%;filter:blur(90px);opacity:.42;left:38%;bottom:-220px}
    .hero-inner{position:relative;z-index:1;max-width:850px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:750;font-size:13px;letter-spacing:.08em;margin-bottom:17px}
    .eyebrow:before{content:"";width:24px;height:3px;border-radius:4px;background:var(--lime)}
    .breadcrumb{display:flex;gap:9px;color:#bdb4c9;font-size:13px;margin-bottom:25px}
    .breadcrumb a:hover{color:var(--lime)}
    .page-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-1.8px;margin:0 0 20px;max-width:780px}
    .page-hero h1 span{color:var(--lime)}
    .hero-copy{font-size:17px;color:#d6d0df;max-width:720px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 21px;border-radius:12px;font-size:15px;font-weight:800;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:#252019;box-shadow:0 8px 20px rgba(201,242,91,.18)}
    .btn-primary:hover{background:#dbff79;transform:translateY(-2px)}
    .btn-secondary{border-color:#61586d;color:#fff;background:rgba(255,255,255,.04)}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .btn:focus,.nav-links a:focus,.faq-question:focus,.menu-toggle:focus{outline:3px solid rgba(201,242,91,.55);outline-offset:3px}
    .section{padding:84px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:34px}
    .section-kicker{color:var(--purple);font-weight:850;font-size:13px;letter-spacing:.1em;margin-bottom:9px}
    .section-title{font-size:clamp(27px,3vw,40px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-lead{color:var(--muted);max-width:610px;margin:10px 0 0}
    .text-link{color:var(--purple-dark);font-weight:800;border-bottom:1px solid #cbb8ed;padding-bottom:3px}
    .text-link:hover{color:var(--purple)}
    .guide-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:stretch}
    .guide-index{background:var(--purple);color:#fff;border-radius:22px;padding:32px;position:relative;overflow:hidden}
    .guide-index:after{content:"C7";position:absolute;right:-8px;bottom:-45px;font-size:170px;line-height:1;font-weight:900;color:rgba(255,255,255,.08)}
    .guide-index h2{font-size:26px;line-height:1.35;margin:0 0 14px;position:relative;z-index:1}
    .guide-index p{color:#dfd4f5;font-size:14px;position:relative;z-index:1}
    .guide-list{list-style:none;padding:18px 0 0;margin:0;position:relative;z-index:1}
    .guide-list li{display:flex;gap:13px;align-items:flex-start;border-top:1px solid rgba(255,255,255,.2);padding:15px 0;font-size:14px}
    .step-dot{flex:0 0 28px;height:28px;border-radius:9px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-size:13px;font-weight:900}
    .faq-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:13px 24px;box-shadow:var(--shadow)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-item:last-child{border-bottom:0}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:none;text-align:left;padding:21px 0;color:var(--ink);font-size:16px;font-weight:800}
    .faq-question:after{content:"+";color:var(--purple);font-size:26px;font-weight:400;line-height:1}
    .faq-item.open .faq-question:after{content:"−"}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 38px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .notice-section{background:var(--lavender)}
    .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .notice-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;min-height:190px}
    .notice-card:nth-child(2){background:var(--ink);color:#fff}
    .notice-card:nth-child(3){background:var(--lime)}
    .notice-icon{width:40px;height:40px;border-radius:12px;background:var(--purple-soft);color:var(--purple);display:grid;place-items:center;font-size:19px;font-weight:900;margin-bottom:17px}
    .notice-card:nth-child(2) .notice-icon{background:rgba(255,255,255,.12);color:var(--lime)}
    .notice-card:nth-child(3) .notice-icon{background:#fff;color:var(--purple)}
    .notice-card h3{font-size:18px;margin:0 0 7px}
    .notice-card p{font-size:13px;color:var(--muted);margin:0}
    .notice-card:nth-child(2) p{color:#c9c0d0}
    .support-box{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:0 10px 28px rgba(45,25,75,.06)}
    .support-box h2{font-size:28px;line-height:1.3;margin:0 0 10px}
    .support-box p{color:var(--muted);margin:0;max-width:650px}
    .support-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}
    .btn-purple{background:var(--purple);color:#fff;box-shadow:0 8px 18px rgba(123,53,232,.2)}
    .btn-purple:hover{background:var(--purple-dark);color:#fff;transform:translateY(-2px)}
    .cta{background:var(--dark);color:#fff;padding:66px 0;position:relative;overflow:hidden}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;z-index:1}
    .cta h2{font-size:clamp(27px,3vw,40px);line-height:1.25;margin:0 0 10px}
    .cta p{color:#c8c0d0;margin:0;max-width:650px}
    .cta:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:var(--purple);opacity:.28;filter:blur(80px);right:2%;top:-210px}
    .site-footer{background:#17131e;color:#fff;padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:35px}
    .footer-brand .logo{color:#fff}
    .footer-brand p{color:#a9a1b0;font-size:13px;max-width:310px;margin:17px 0 0}
    .footer-title{font-size:14px;font-weight:850;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#a9a1b0;font-size:13px}
    .footer-links a:hover{color:var(--lime)}
    .copyright{border-top:1px solid #332b3a;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:#837a8b;font-size:12px}
    @media(max-width:900px){
      .nav-links{gap:2px}.nav-links a{padding:8px 9px;font-size:13px}
      .guide-layout,.support-box{grid-template-columns:1fr}
      .support-actions{justify-content:flex-start}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header{height:68px}
      .navbar{gap:12px}
      .logo{font-size:15px}.logo-mark{width:31px;height:31px}
      .menu-toggle{display:block;order:3}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}
      .nav-links a{padding:12px 14px}
      .nav-links .nav-download{text-align:center;margin-top:4px}
      .page-hero{padding:57px 0 55px}
      .page-hero h1{letter-spacing:-1px}
      .section{padding:64px 0}
      .section-head{display:block;margin-bottom:25px}
      .section-head .text-link{display:inline-block;margin-top:14px}
      .notice-grid{grid-template-columns:1fr}
      .cta-inner{display:block}
      .cta .btn{margin-top:24px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:7px}
    }
    @media(max-width:520px){
      .logo{font-size:14px;gap:8px}
      .logo-mark{width:29px;height:29px;font-size:13px}
      .page-hero h1{font-size:34px}
      .hero-copy{font-size:15px}
      .hero-actions .btn{width:100%}
      .guide-index,.faq-panel,.support-box{padding:23px}
      .faq-panel{padding:8px 18px}
      .faq-question{font-size:15px;padding:18px 0}
      .notice-card{min-height:0}
      .support-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }

/* 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}