/* roulang page: index */
:root{
  --ink:#171329;--deep:#21183d;--deep-2:#302252;--violet:#6e4bd8;
  --lime:#c8f36b;--cyan:#6de4d3;--paper:#fbfafc;--mist:#f1eff6;
  --muted:#716b82;--line:#e6e1ee;--white:#fff;--orange:#ed9b54;
  --radius:18px;--shadow:0 16px 45px rgba(39,27,70,.09);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{height:78px;background:rgba(251,250,252,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.header-inner{height:78px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);display:grid;place-items:center;color:var(--lime);font-size:18px;box-shadow:5px 5px 0 #e3dafb}
.logo span{font-size:16px}.logo em{font-style:normal;color:var(--violet)}
.nav{display:flex;align-items:center;gap:5px;flex:1}
.nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.2s}
.nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
.header-actions{display:flex;align-items:center;gap:9px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 19px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
.btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(109,228,211,.65);outline-offset:3px}
.btn-light{background:#f0edf8;color:var(--deep)}.btn-primary{background:var(--lime);color:#202018}.btn-dark{background:var(--deep);color:#fff}.btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
.menu-toggle{display:none;background:var(--deep);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
.hero{padding:83px 0 76px;background:linear-gradient(125deg,#f8f6fc 0%,#f2eefb 55%,#e9f5ee 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:75px;align-items:center}
.eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--violet);text-transform:uppercase}
.hero h1{font-size:clamp(40px,5vw,68px);line-height:1.13;letter-spacing:-3px;margin:17px 0 21px;max-width:650px}
.hero h1 strong{color:var(--violet);font-weight:850}
.hero-copy{font-size:17px;color:var(--muted);max-width:590px}
.hero-buttons{display:flex;gap:12px;margin:30px 0 20px;flex-wrap:wrap}
.hero-note{font-size:12px;color:#8a8497}.hero-note b{color:#4e9e88}
.visual-stage{height:390px;position:relative;background:var(--deep);border-radius:30px;padding:25px;box-shadow:var(--shadow);overflow:hidden}
.visual-stage:before,.visual-stage:after{content:"";position:absolute;border-radius:50%;filter:blur(1px)}
.visual-stage:before{width:220px;height:220px;background:#8063dd;opacity:.3;right:-40px;top:-55px}
.visual-stage:after{width:160px;height:160px;background:var(--cyan);opacity:.14;left:-55px;bottom:-60px}
.star-field{position:absolute;inset:0;background-image:radial-gradient(#fff 1px,transparent 1px);background-size:31px 31px;opacity:.16}
.app-panel{position:absolute;left:11%;top:55px;width:67%;height:270px;background:#fff;border-radius:22px;padding:22px;color:var(--ink);box-shadow:14px 18px 0 rgba(0,0,0,.12);transform:rotate(-4deg)}
.app-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;font-weight:800}
.app-dot{width:10px;height:10px;border-radius:50%;background:var(--lime);display:inline-block;margin-right:7px}
.app-score{margin-top:23px;background:#f1edfc;border-radius:15px;padding:17px}.app-score small{color:var(--muted)}.app-score strong{font-size:25px;display:block;margin-top:4px}
.app-lines{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}.app-lines i{height:35px;background:#f5f3f8;border-radius:8px}
.float-chip{position:absolute;right:10%;bottom:44px;background:var(--lime);color:#222;padding:12px 16px;border-radius:13px;font-size:13px;font-weight:800;transform:rotate(4deg)}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:20px}.section h2{font-size:34px;line-height:1.2;letter-spacing:-1.4px;margin-top:8px}.section-intro{color:var(--muted);max-width:530px}
.quickbar{background:#fff;border-bottom:1px solid var(--line);padding:18px 0}
.quick-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.quick-item{padding:13px 15px;border-right:1px solid var(--line);display:flex;gap:11px;align-items:center;transition:.2s}.quick-item:last-child{border:0}.quick-item:hover{background:#f6f3fb;border-radius:12px}
.quick-icon{width:31px;height:31px;border-radius:9px;background:#eee9fa;color:var(--violet);display:grid;place-items:center;font-weight:800}.quick-item b{font-size:14px;display:block}.quick-item small{color:var(--muted);font-size:11px}
.app-section{background:var(--deep);color:#fff}.app-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}.app-section .section-kicker{color:var(--lime)}.app-section h2{font-size:40px}.app-section p{color:#c3bad8;margin:18px 0 25px}.app-tags{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}.app-tags span{font-size:12px;border:1px solid #5b4c7d;border-radius:20px;padding:5px 11px;color:#d8d0e8}.device-row{display:flex;gap:20px;align-items:end;justify-content:center}.device{width:185px;height:320px;border:9px solid #111025;border-radius:28px;background:#f8f7fb;padding:17px 12px;color:var(--ink);box-shadow:0 18px 0 rgba(0,0,0,.18)}.device.small{width:125px;height:225px;border-width:7px;margin-bottom:3px}.device-head{font-weight:800;font-size:14px;border-bottom:1px solid var(--line);padding-bottom:12px}.device-card{background:#eae5fa;border-radius:13px;padding:17px 10px;margin-top:18px}.device-card strong{font-size:22px;display:block}.device-row .device.small .device-card{margin-top:12px;padding:10px 7px}.news-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:22px}.feature-news{background:var(--deep-2);border-radius:var(--radius);padding:30px;color:#fff;min-height:290px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}.feature-news:before{content:"资讯";position:absolute;right:23px;top:16px;font-size:68px;font-weight:900;color:rgba(255,255,255,.06)}.feature-news p{color:#cfc7df;margin:12px 0}.feature-news .tag{color:var(--lime)}.tag{font-size:12px;color:var(--violet);font-weight:800}.news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 23px}.news-item{display:grid;grid-template-columns:78px 1fr auto;gap:16px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-date{font-size:12px;color:var(--muted)}.news-item h3{font-size:16px;line-height:1.4}.news-item p{font-size:12px;color:var(--muted);margin-top:3px}.arrow{color:var(--violet);font-size:20px}.empty-state{padding:35px;text-align:center;color:var(--muted)}
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.timeline:before{content:"";height:1px;background:#d8d0e5;position:absolute;top:14px;left:10px;right:10px}.time-card{position:relative;padding-top:38px}.time-card:before{content:"";position:absolute;top:7px;left:0;width:15px;height:15px;border:4px solid var(--paper);background:var(--violet);box-shadow:0 0 0 1px var(--violet);border-radius:50%}.time-card strong{font-size:14px}.time-card p{font-size:13px;color:var(--muted);margin-top:5px}
.sport-panel{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.sport-feature{border-radius:var(--radius);padding:33px;background:#e5f2e6;min-height:250px;position:relative;overflow:hidden}.sport-feature h3{font-size:29px;max-width:350px}.sport-feature p{color:#5f7165;max-width:400px;margin:12px 0 22px}.field-lines{position:absolute;width:270px;height:270px;border:1px solid rgba(55,110,78,.25);border-radius:50%;right:-70px;bottom:-95px}.basket-panel{border-radius:var(--radius);padding:30px;background:#f8e8d8;min-height:250px}.basket-panel h3{font-size:25px}.basket-panel p{color:#816b5c;margin:12px 0 20px}.mini-link{font-weight:800;color:var(--violet);font-size:13px}.columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.content-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px}.content-box h3{font-size:21px;margin-bottom:17px}.content-row{display:flex;gap:13px;padding:13px 0;border-bottom:1px solid var(--line)}.content-row:last-child{border:0}.number{color:var(--violet);font-weight:900;font-size:20px}.content-row p{font-size:13px;color:var(--muted)}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{padding:22px;border-top:3px solid var(--violet);background:#fff;border-radius:0 0 14px 14px}.step b{font-size:12px;color:var(--violet)}.step h3{font-size:17px;margin:8px 0}.step p{color:var(--muted);font-size:13px}
.guide{display:grid;grid-template-columns:.72fr 1.28fr;gap:45px;align-items:center}.guide-art{height:240px;background:linear-gradient(145deg,#dbd3f4,#f0ecfa);border-radius:24px;display:grid;place-items:center;font-size:70px;color:var(--violet)}.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}.guide-list div{padding:17px;background:#fff;border:1px solid var(--line);border-radius:13px}.guide-list b{font-size:15px}.guide-list p{font-size:12px;color:var(--muted);margin-top:4px}
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.help-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}.help-card h3{font-size:19px;margin-bottom:7px}.help-card p{font-size:13px;color:var(--muted)}details{border-top:1px solid var(--line);padding:15px 0}details:first-of-type{border-top:0}summary{font-weight:700;cursor:pointer;list-style:none}summary:after{content:"＋";float:right;color:var(--violet)}details[open] summary:after{content:"－"}details p{color:var(--muted);font-size:13px;padding-top:8px}
.notice{background:#f0edf7;border:1px solid #ded5f0;border-radius:var(--radius);padding:25px 29px;display:flex;gap:20px;align-items:flex-start}.notice-icon{font-size:24px;color:var(--orange)}.notice p{color:var(--muted);font-size:14px}
.search-box{display:flex;max-width:650px;border:1px solid var(--line);background:#fff;border-radius:14px;padding:6px;margin-top:22px}.search-box input{border:0;outline:0;flex:1;padding:8px 12px;color:var(--ink);background:transparent}.search-box button{background:var(--deep);color:#fff;border-radius:9px;padding:9px 18px}
.cta{padding:56px 0;background:var(--deep-2);color:#fff}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:30px}.cta p{color:#cfc7df;margin-top:6px}
.site-footer{background:#171329;color:#cfc7df;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-brand p{font-size:13px;color:#968da9;max-width:280px;margin-top:16px}.footer-title{font-weight:800;color:#fff;margin-bottom:12px}.footer-links{display:grid;gap:7px;font-size:13px}.footer-links a{color:#aaa1bd}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #302947;margin-top:38px;padding-top:17px;color:#81778f;font-size:12px;display:flex;justify-content:space-between;gap:15px}
@media(max-width:1024px){.hero-grid{gap:35px}.app-layout{gap:35px}.nav a{padding:8px 8px}.header-inner{gap:16px}}
@media(max-width:768px){.container{width:min(100% - 28px,600px)}.site-header,.header-inner{height:68px}.header-actions .btn-light,.header-actions .btn-primary{display:none}.menu-toggle{display:block}.nav{display:none;position:absolute;left:14px;right:14px;top:62px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.hero{padding:55px 0}.hero-grid,.app-layout,.news-layout,.sport-panel,.guide,.columns,.help-grid{grid-template-columns:1fr}.hero h1{font-size:43px;letter-spacing:-2px}.visual-stage{height:330px}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item{border:0}.quick-item:last-child{grid-column:span 2}.section{padding:60px 0}.section-head{display:block}.section-intro{margin-top:12px}.timeline{grid-template-columns:1fr 1fr;gap:25px}.timeline:before{display:none}.process{grid-template-columns:1fr 1fr}.device-row{transform:scale(.9);margin:-20px}.footer-grid{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta .btn{margin-top:22px}}
@media(max-width:520px){.logo span{font-size:13px}.hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-buttons .btn{width:100%}.visual-stage{height:275px}.app-panel{top:40px;height:205px;padding:15px}.app-score{margin-top:13px;padding:10px}.app-score strong{font-size:18px}.float-chip{bottom:25px;font-size:11px}.quick-grid{grid-template-columns:1fr 1fr}.quick-item{padding:10px 4px}.quick-item small{display:none}.news-item{grid-template-columns:58px 1fr}.news-item .arrow{display:none}.timeline,.process,.guide-list{grid-template-columns:1fr}.device-row{transform:scale(.72);margin:-45px}.app-section h2{font-size:31px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}.section h2{font-size:29px}}

/* roulang page: article */
:root{
      --ink:#171329;--deep:#21183d;--deep-2:#302252;--violet:#6e4bd8;
      --lime:#c8f36b;--cyan:#6de4d3;--paper:#fbfafc;--mist:#f1eff6;
      --muted:#716b82;--line:#e6e1ee;--white:#fff;--orange:#ed9b54;
      --radius:18px;--shadow:0 16px 45px rgba(39,27,70,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(251,250,252,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);display:grid;place-items:center;color:var(--lime);font-size:18px;box-shadow:5px 5px 0 #e3dafb}
    .logo span{font-size:16px}
    .logo em{font-style:normal;color:var(--violet)}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
    .header-actions{display:flex;align-items:center;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 19px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
    .btn:focus-visible,.nav a:focus-visible,summary:focus-visible{outline:3px solid rgba(109,228,211,.65);outline-offset:3px}
    .btn-light{background:#f0edf8;color:var(--deep)}
    .btn-primary{background:var(--lime);color:#202018}
    .btn-dark{background:var(--deep);color:#fff}
    .btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
    .menu-toggle{display:none;background:var(--deep);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
    .article-hero{padding:58px 0 54px;background:linear-gradient(125deg,#f8f6fc 0%,#f2eefb 58%,#e9f5ee 100%);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a{color:var(--violet)}
    .breadcrumb .slash{color:#b0a8bf}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-size:12px;font-weight:800;letter-spacing:1.2px}
    .article-label:before{content:"";width:8px;height:8px;background:var(--lime);border-radius:50%;box-shadow:0 0 0 4px rgba(200,243,107,.25)}
    .article-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.22;letter-spacing:-2px;max-width:900px;margin:16px 0 20px}
    .article-meta{display:flex;flex-wrap:wrap;gap:12px 24px;color:var(--muted);font-size:13px}
    .meta-item{display:inline-flex;align-items:center;gap:7px}
    .meta-item strong{color:var(--deep);font-weight:700}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:42px;align-items:start;padding:68px 0 82px}
    .article-body{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,4vw,54px);box-shadow:var(--shadow);min-width:0}
    .article-content{font-size:16px;color:#3b354b;word-break:break-word}
    .article-content h2{font-size:29px;line-height:1.35;color:var(--deep);margin:38px 0 16px}
    .article-content h3{font-size:22px;line-height:1.45;color:var(--deep);margin:30px 0 12px}
    .article-content p{margin:0 0 20px}
    .article-content ul,.article-content ol{padding-left:25px;margin:16px 0 24px}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:26px 0;padding:18px 22px;border-left:4px solid var(--lime);background:#f5f8ed;color:#5d654d;border-radius:0 12px 12px 0}
    .article-content img{border-radius:13px;margin:26px auto}
    .article-content a{color:var(--violet);text-decoration:underline;text-underline-offset:3px}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0}
    .article-content th,.article-content td{border:1px solid var(--line);padding:11px 13px;text-align:left}
    .article-content th{background:var(--mist);color:var(--deep)}
    .article-aside{position:sticky;top:105px}
    .aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:16px}
    .aside-card.dark{background:var(--deep);color:#fff;border-color:var(--deep)}
    .aside-title{font-size:15px;font-weight:800;color:var(--deep);margin-bottom:14px}
    .dark .aside-title{color:var(--lime)}
    .aside-card p{font-size:13px;color:var(--muted);margin:0 0 15px}
    .dark p{color:#c7bfd9}
    .progress-line{height:6px;background:#ece8f4;border-radius:20px;overflow:hidden;margin:13px 0 8px}
    .progress-line span{display:block;height:100%;width:32%;background:var(--violet);border-radius:20px}
    .article-tip{display:flex;align-items:flex-start;gap:15px;background:#f1f8ec;border:1px solid #dbeacb;border-radius:14px;padding:19px 21px;margin:34px 0 0}
    .tip-icon{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;background:var(--lime);border-radius:10px;color:#26321d;font-weight:900}
    .article-tip strong{display:block;color:var(--deep);margin-bottom:3px}
    .article-tip p{font-size:13px;color:#64705b;margin:0}
    .support-section{padding:0 0 82px}
    .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:25px;gap:20px}
    .section-kicker{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--violet)}
    .section h2{font-size:32px;line-height:1.25;letter-spacing:-1.2px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:530px;margin:0}
    .support-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
    .support-card{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:26px;transition:.2s}
    .support-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .support-card h3{font-size:18px;margin:0 0 8px;color:var(--deep)}
    .support-card p{font-size:14px;color:var(--muted);margin:0 0 17px}
    .text-link{color:var(--violet);font-size:13px;font-weight:800}
    .faq-section{padding:0 0 82px}
    .faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
    details{padding:19px 23px;border-bottom:1px solid var(--line)}
    details:last-child{border-bottom:0}
    summary{cursor:pointer;list-style:none;font-weight:700;color:var(--deep);position:relative;padding-right:24px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--violet);font-size:20px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:12px 28px 0 0}
    .bottom-cta{background:var(--deep);border-radius:var(--radius);padding:34px 38px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .bottom-cta h2{font-size:27px;margin:0 0 7px}
    .bottom-cta p{color:#c7bfd9;margin:0;font-size:14px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#171329;color:#fff;padding:56px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}
    .footer-brand p{color:#aaa1c0;font-size:13px;max-width:300px;margin:18px 0 0}
    .footer-title{font-size:13px;font-weight:800;color:var(--lime);margin-bottom:14px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{font-size:13px;color:#b7aec9;transition:.2s}
    .footer-links a:hover{color:var(--cyan);padding-left:3px}
    .footer-bottom{border-top:1px solid #342b4b;margin-top:43px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#8f86a4;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:15px}.nav a{padding:8px 8px;font-size:13px}
      .header-actions .btn{padding:9px 12px}.article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:25px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,620px)}
      .site-header,.header-inner{height:68px}.header-inner{justify-content:space-between}
      .nav{display:none;position:absolute;top:68px;left:15px;right:15px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}
      .header-actions{margin-left:auto}.header-actions .btn-light,.header-actions .btn-primary{display:none}
      .menu-toggle{display:block;margin-left:5px}
      .article-hero{padding:42px 0 38px}.article-hero h1{letter-spacing:-1px}
      .article-layout{display:block;padding:42px 0 60px}.article-aside{position:static;margin-top:22px}
      .support-section,.faq-section{padding-bottom:58px}.support-grid{grid-template-columns:1fr}
      .bottom-cta{display:block;padding:28px 23px}.cta-actions{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .logo span{font-size:14px}.logo-mark{width:30px;height:30px}
      .header-actions .btn-dark{padding:9px 12px;font-size:12px}
      .article-body{padding:22px 18px}.article-content{font-size:15px}
      .article-content h2{font-size:24px}.article-content h3{font-size:20px}
      .article-meta{gap:7px 15px}.section h2{font-size:27px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}
    }

/* roulang page: category1 */
:root{
      --ink:#171329;--deep:#21183d;--deep-2:#302252;--violet:#6e4bd8;
      --lime:#c8f36b;--cyan:#6de4d3;--paper:#fbfafc;--mist:#f1eff6;
      --muted:#716b82;--line:#e6e1ee;--white:#fff;--orange:#ed9b54;
      --radius:18px;--shadow:0 16px 45px rgba(39,27,70,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(251,250,252,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);display:grid;place-items:center;color:var(--lime);font-size:18px;box-shadow:5px 5px 0 #e3dafb}
    .logo span{font-size:16px}.logo em{font-style:normal;color:var(--violet)}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
    .header-actions{display:flex;align-items:center;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 19px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
    .btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(109,228,211,.65);outline-offset:3px}
    .btn-light{background:#f0edf8;color:var(--deep)}.btn-primary{background:var(--lime);color:#202018}.btn-dark{background:var(--deep);color:#fff}.btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
    .menu-toggle{display:none;background:var(--deep);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
    .page-head{padding:72px 0 62px;background:linear-gradient(125deg,#f8f6fc 0%,#f2eefb 56%,#e9f5ee 100%)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:22px}.crumbs a{color:var(--violet)}.crumbs span{padding:0 8px;color:#aaa1b8}
    .head-layout{display:flex;justify-content:space-between;align-items:end;gap:40px}
    .eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--violet)}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.15;letter-spacing:-2.5px;margin:14px 0 18px}
    .head-copy{font-size:17px;color:var(--muted);max-width:690px;margin:0}
    .head-note{min-width:220px;padding:19px 21px;background:rgba(255,255,255,.64);border:1px solid rgba(110,75,216,.14);border-radius:15px}
    .head-note strong{display:block;font-size:26px;color:var(--deep);line-height:1.2}.head-note small{color:var(--muted)}
    .section{padding:78px 0}.section-alt{background:var(--mist)}
    .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:20px}
    .section h2{font-size:32px;line-height:1.2;letter-spacing:-1.2px;margin:8px 0 0}.section-intro{color:var(--muted);max-width:560px;margin:0}
    .news-layout{display:grid;grid-template-columns:1.05fr 1.6fr;gap:22px;align-items:stretch}
    .feature-news{background:var(--deep-2);border-radius:var(--radius);padding:32px;color:#fff;min-height:330px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
    .feature-news:before{content:"资讯";position:absolute;right:22px;top:14px;font-size:72px;font-weight:900;color:rgba(255,255,255,.06)}
    .feature-news .tag{color:var(--lime)}.feature-news h3{font-size:27px;line-height:1.35;max-width:390px;margin:12px 0}.feature-news p{color:#cfc7df;margin:0 0 20px}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 24px}
    .news-item{display:grid;grid-template-columns:82px 1fr auto;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border:0}.news-item time{font-size:12px;color:var(--violet);font-weight:800}.news-item h3{font-size:16px;line-height:1.4;margin:0}.news-item p{font-size:12px;color:var(--muted);margin:4px 0 0}.arrow{color:var(--violet);font-size:20px;transition:.2s}.news-item:hover .arrow{transform:translateX(4px)}
    .empty-state{padding:62px 20px;text-align:center;color:var(--muted);background:#fff;border:1px dashed #d4cce2;border-radius:var(--radius)}
    .empty-icon{font-size:35px;color:var(--violet);margin-bottom:8px}
    .more-line{text-align:center;margin-top:26px}.more-line .btn{padding-inline:26px}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.25s}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6c8f7}
    .topic-no{display:inline-grid;place-items:center;width:34px;height:34px;background:#eee9fa;border-radius:10px;color:var(--violet);font-weight:800;margin-bottom:18px}
    .topic-card h3{font-size:20px;margin:0 0 9px}.topic-card p{font-size:14px;color:var(--muted);margin:0}
    .filter-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:15px;margin-bottom:24px}
    .filter-label{font-size:14px;font-weight:800}.filter-tags{display:flex;gap:8px;flex-wrap:wrap}.filter-tags span{font-size:12px;padding:6px 12px;border:1px solid var(--line);border-radius:20px;color:var(--muted);background:var(--paper)}.filter-tags span.active{background:var(--deep);color:#fff;border-color:var(--deep)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 22px 12px 0;border-right:1px solid var(--line);margin-right:22px}.step:last-child{border:0;margin:0}.step b{display:block;color:var(--violet);font-size:13px;margin-bottom:10px}.step h3{font-size:18px;margin:0 0 7px}.step p{font-size:13px;color:var(--muted);margin:0}
    .guide-panel{display:grid;grid-template-columns:1fr 1.3fr;gap:30px;align-items:stretch}.guide-copy{background:#e5f2e6;border-radius:var(--radius);padding:30px}.guide-copy h2{margin-top:8px}.guide-copy p{color:#5f7165}.guide-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.guide-list div{padding:19px;background:#fff;border:1px solid var(--line);border-radius:13px}.guide-list b{font-size:15px;display:block;margin-bottom:5px}.guide-list span{font-size:13px;color:var(--muted)}
    .faq-list{max-width:840px;margin:auto}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:10px;padding:0 20px}.faq-list summary{padding:17px 0;font-weight:700;cursor:pointer;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";float:right;color:var(--violet);font-size:20px}.faq-list details[open] summary:after{content:"－"}.faq-list details p{border-top:1px solid var(--line);padding:13px 0 17px;color:var(--muted);font-size:14px;margin:0}
    .cta-band{padding:36px 42px;background:var(--deep);color:#fff;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;gap:22px}.cta-band h2{margin:0 0 8px;font-size:29px}.cta-band p{margin:0;color:#cfc7df}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#171329;color:#fff;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}.footer-brand p{color:#aaa3b9;max-width:300px;font-size:13px;margin-top:18px}.site-footer .logo{color:#fff}.footer-title{font-size:13px;font-weight:800;color:var(--lime);margin-bottom:14px}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#bdb5cb;transition:.2s}.footer-links a:hover{color:#fff;transform:translateX(3px)}.footer-bottom{border-top:1px solid #332b49;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8f879e;font-size:12px}
    @media(max-width:1024px){.header-inner{gap:15px}.nav a{padding-inline:8px}.header-actions .btn-light{display:none}.news-layout{grid-template-columns:1fr 1.3fr}}
    @media(max-width:768px){.site-header,.header-inner{height:68px}.nav{display:none;position:absolute;left:20px;right:20px;top:74px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.header-actions{margin-left:auto}.header-actions .btn{padding:9px 12px}.menu-toggle{display:block;margin-left:5px}.page-head{padding:52px 0 48px}.head-layout{display:block}.head-note{margin-top:25px;width:max-content}.section{padding:58px 0}.section-head{display:block}.section-intro{margin-top:12px}.news-layout,.guide-panel{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr;gap:12px}.step{border-right:0;margin:0;padding:18px 10px 18px 0}.filter-panel{display:block}.filter-tags{margin-top:12px}.cta-band{display:block;padding:28px 24px}.cta-actions{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
    @media(max-width:520px){.container{width:min(100% - 28px,1180px)}h1{font-size:38px;letter-spacing:-1.5px}.header-actions .btn-primary{display:none}.topic-grid,.guide-list{grid-template-columns:1fr}.news-list{padding-inline:16px}.news-item{grid-template-columns:65px 1fr auto;gap:9px}.news-item p{display:none}.feature-news{min-height:280px;padding:25px}.steps{grid-template-columns:1fr}.step{border-bottom:1px solid var(--line);padding-bottom:16px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}.cta-actions .btn{width:100%}}

/* roulang page: category2 */
:root{
      --ink:#171329;--deep:#21183d;--deep-2:#302252;--violet:#6e4bd8;
      --lime:#c8f36b;--cyan:#6de4d3;--paper:#fbfafc;--mist:#f1eff6;
      --muted:#716b82;--line:#e6e1ee;--white:#fff;--orange:#ed9b54;
      --red:#d96e72;--radius:18px;--shadow:0 16px 45px rgba(39,27,70,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--violet)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(251,250,252,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);display:grid;place-items:center;color:var(--lime);font-size:18px;box-shadow:5px 5px 0 #e3dafb}
    .logo span{font-size:16px}
    .logo em{font-style:normal;color:var(--violet)}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
    .header-actions{display:flex;align-items:center;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 19px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
    .btn-light{background:#f0edf8;color:var(--deep)}
    .btn-primary{background:var(--lime);color:#202018}
    .btn-dark{background:var(--deep);color:#fff}
    .btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
    .menu-toggle{display:none;background:var(--deep);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
    .page-intro{padding:68px 0 55px;background:linear-gradient(125deg,#f8f6fc,#f0edfa 60%,#e9f5ee)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb span{color:#b0a8bd}
    .intro-grid{display:grid;grid-template-columns:1fr 340px;gap:70px;align-items:end}
    .eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--violet)}
    .page-intro h1{font-size:clamp(38px,5vw,62px);line-height:1.16;letter-spacing:-2.5px;margin:13px 0 18px}
    .page-intro h1 strong{color:var(--violet)}
    .intro-copy{font-size:17px;color:var(--muted);max-width:730px;margin:0}
    .intro-note{background:var(--deep);color:#fff;border-radius:18px;padding:24px;position:relative;overflow:hidden}
    .intro-note:after{content:"⚽";position:absolute;right:18px;bottom:-18px;font-size:76px;opacity:.13}
    .intro-note b{font-size:18px;display:block;margin-bottom:8px}
    .intro-note p{font-size:13px;color:#cfc7df;margin:0;max-width:220px}
    .section{padding:78px 0}
    .section.alt{background:var(--mist)}
    .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:20px}
    .section h2{font-size:34px;line-height:1.2;letter-spacing:-1.4px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:560px;margin:0}
    .listing-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:28px}
    .news-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 26px;box-shadow:var(--shadow)}
    .news-item{display:grid;grid-template-columns:88px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .news-item:last-child{border-bottom:0}
    .news-date{font-size:12px;color:var(--violet);font-weight:800;line-height:1.4}
    .news-date small{color:var(--muted);font-weight:500;display:block;margin-top:3px}
    .news-item h3{font-size:17px;line-height:1.45;margin:0 0 4px}
    .news-item p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .tag{font-size:12px;color:var(--violet);font-weight:800}
    .arrow{color:var(--violet);font-size:21px;transition:.2s}
    .news-item a:hover .arrow{transform:translateX(4px)}
    .empty-state{padding:58px 25px;text-align:center;color:var(--muted)}
    .empty-icon{font-size:34px;display:block;margin-bottom:8px;opacity:.55}
    .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;height:max-content}
    .side-card h3{font-size:19px;margin:0 0 15px}
    .side-list{list-style:none;padding:0;margin:0}
    .side-list li{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
    .side-list li:last-child{border:0}
    .side-list span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .feature-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .feature-card{background:var(--deep-2);border-radius:var(--radius);padding:34px;color:#fff;min-height:275px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
    .feature-card:before{content:"足球";position:absolute;right:22px;top:10px;font-size:74px;font-weight:900;color:rgba(255,255,255,.06)}
    .feature-card h3{font-size:27px;max-width:510px;line-height:1.35;margin:10px 0}
    .feature-card p{color:#d4cde1;margin:0;max-width:520px;font-size:14px}
    .feature-card .tag{color:var(--lime)}
    .mini-stack{display:grid;gap:12px}
    .mini-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px;transition:.2s}
    .mini-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
    .mini-card h3{font-size:16px;margin:8px 0 4px}
    .mini-card p{font-size:13px;color:var(--muted);margin:0}
    .filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);padding:16px 18px;border-radius:14px}
    .filter-label{font-weight:800;font-size:14px;margin-right:5px}
    .filter-chip{padding:7px 13px;border:1px solid var(--line);border-radius:20px;background:var(--paper);font-size:13px;color:var(--muted);transition:.2s}
    .filter-chip:hover,.filter-chip.active{background:var(--deep);border-color:var(--deep);color:#fff}
    .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .scene-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:16px;min-height:185px}
    .scene-number{width:31px;height:31px;border-radius:10px;display:grid;place-items:center;background:#e8f7e5;color:#478955;font-weight:800;margin-bottom:18px}
    .scene-card h3{font-size:18px;margin:0 0 8px}
    .scene-card p{font-size:13px;color:var(--muted);margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);padding-top:30px}
    .step{padding:0 24px;border-left:1px solid var(--line);min-height:145px}
    .step:first-child{border-left:0;padding-left:0}
    .step-num{font-size:13px;color:var(--violet);font-weight:900;letter-spacing:1px}
    .step h3{font-size:18px;margin:10px 0 6px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .faq-list{max-width:850px;margin:auto}
    details{background:#fff;border:1px solid var(--line);border-radius:13px;margin-bottom:11px;padding:0 20px}
    summary{padding:17px 0;font-weight:800;cursor:pointer;list-style:none;position:relative;padding-right:28px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";position:absolute;right:0;color:var(--violet);font-size:20px}
    details[open] summary:after{content:"－"}
    details p{border-top:1px solid var(--line);padding:14px 0 17px;margin:0;color:var(--muted);font-size:14px}
    .cta-band{background:var(--deep);color:#fff;padding:38px 42px;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-band h2{font-size:28px;margin:0 0 6px}
    .cta-band p{color:#cfc7df;margin:0;font-size:14px}
    .site-footer{background:#171329;color:#fff;padding:55px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{margin-bottom:15px}
    .footer-brand p{color:#aaa1bd;font-size:13px;max-width:300px;margin:0}
    .footer-title{font-weight:800;font-size:14px;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#aaa1bd;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #342b4d;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#887f9c;font-size:12px}
    @media(max-width:1024px){
      .header-inner{gap:18px}.nav a{padding:8px 8px}.header-actions .btn{padding:10px 12px}
      .intro-grid{gap:35px}.listing-layout{grid-template-columns:1fr 250px}
    }
    @media(max-width:768px){
      .site-header,.header-inner{height:68px}.container{width:min(100% - 30px,620px)}
      .header-inner{gap:12px}.logo span{font-size:14px}.logo-mark{width:31px;height:31px}
      .nav{display:none;position:absolute;top:68px;left:15px;right:15px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.header-actions{margin-left:auto}.header-actions .btn-light{display:none}.header-actions .btn{padding:9px 11px;font-size:12px}.menu-toggle{display:block}
      .page-intro{padding:45px 0 38px}.intro-grid,.listing-layout,.feature-wrap{grid-template-columns:1fr}.intro-note{display:none}
      .section{padding:58px 0}.section h2{font-size:29px}.section-head{display:block}.section-intro{margin-top:12px}
      .news-list{padding:5px 16px}.news-item{grid-template-columns:65px 1fr auto;gap:11px;padding:18px 0}.news-item h3{font-size:15px}.news-item p{font-size:12px}
      .scene-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr;gap:25px}.step,.step:first-child{border-left:0;padding:0;min-height:125px}
      .cta-band{display:block;padding:30px 25px}.cta-band .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
    }
    @media(max-width:520px){
      .header-actions .btn-primary{display:none}.page-intro h1{font-size:38px;letter-spacing:-1.8px}
      .breadcrumb{font-size:12px}.news-item{grid-template-columns:1fr auto}.news-date{grid-column:1/-1}
      .feature-card{padding:25px;min-height:245px}.feature-card h3{font-size:23px}.steps{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }

/* roulang page: category3 */
:root{
      --ink:#171329;
      --deep:#21183d;
      --deep-2:#302252;
      --violet:#6e4bd8;
      --lime:#c8f36b;
      --cyan:#6de4d3;
      --paper:#fbfafc;
      --mist:#f1eff6;
      --muted:#716b82;
      --line:#e6e1ee;
      --white:#fff;
      --orange:#ed9b54;
      --red:#d86e68;
      --radius:18px;
      --shadow:0 16px 45px rgba(39,27,70,.09);
      --shadow-small:0 8px 24px rgba(39,27,70,.07);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{
      height:78px;
      background:rgba(251,250,252,.93);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter:blur(14px);
    }
    .header-inner{
      height:78px;
      display:flex;
      align-items:center;
      gap:34px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:11px;
      font-weight:800;
      letter-spacing:-.5px;
      white-space:nowrap;
    }
    .logo-mark{
      width:34px;
      height:34px;
      border-radius:11px;
      background:var(--deep);
      display:grid;
      place-items:center;
      color:var(--lime);
      font-size:18px;
      box-shadow:5px 5px 0 #e3dafb;
    }
    .logo span{font-size:16px}
    .logo em{font-style:normal;color:var(--violet)}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{
      font-size:14px;
      color:var(--muted);
      padding:9px 13px;
      border-radius:10px;
      transition:.2s;
    }
    .nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
    .header-actions{display:flex;align-items:center;gap:9px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:11px 19px;
      border-radius:11px;
      font-weight:700;
      font-size:14px;
      transition:.2s;
      border:1px solid transparent;
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
    .btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible{
      outline:3px solid rgba(109,228,211,.65);
      outline-offset:3px;
    }
    .btn-light{background:#f0edf8;color:var(--deep)}
    .btn-primary{background:var(--lime);color:#202018}
    .btn-dark{background:var(--deep);color:#fff}
    .btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
    .menu-toggle{
      display:none;
      background:var(--deep);
      color:#fff;
      border-radius:9px;
      padding:8px 11px;
      font-size:20px;
    }
    .page-intro{
      padding:72px 0 68px;
      background:
        radial-gradient(circle at 82% 20%,rgba(200,243,107,.28),transparent 24%),
        linear-gradient(135deg,#f8f6fc 0%,#f0ecfa 62%,#e8f5ef 100%);
      border-bottom:1px solid var(--line);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      color:var(--muted);
      font-size:13px;
      margin-bottom:27px;
    }
    .breadcrumb a:hover{color:var(--violet)}
    .breadcrumb .current{color:var(--deep);font-weight:700}
    .intro-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:60px;
      align-items:end;
    }
    .eyebrow,.section-kicker{
      font-size:12px;
      font-weight:800;
      letter-spacing:1.5px;
      color:var(--violet);
      text-transform:uppercase;
    }
    .page-intro h1{
      font-size:clamp(38px,5vw,62px);
      line-height:1.16;
      letter-spacing:-2.6px;
      margin:14px 0 18px;
    }
    .page-intro h1 strong{color:var(--violet)}
    .intro-copy{
      max-width:700px;
      color:var(--muted);
      font-size:17px;
      margin:0;
    }
    .intro-note{
      border-left:3px solid var(--lime);
      padding:17px 0 17px 22px;
      color:var(--deep);
      font-size:14px;
    }
    .intro-note b{display:block;font-size:22px;margin-bottom:4px}
    .section{padding:82px 0}
    .section-soft{background:var(--mist)}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      margin-bottom:28px;
      gap:20px;
    }
    .section h2{
      font-size:34px;
      line-height:1.2;
      letter-spacing:-1.4px;
      margin:8px 0 0;
    }
    .section-intro{color:var(--muted);max-width:540px;margin:0}
    .filter-bar{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:22px;
    }
    .filter-label{font-size:13px;color:var(--muted);font-weight:700;margin-right:4px}
    .filter-btn{
      padding:8px 14px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--muted);
      border-radius:30px;
      font-size:13px;
      transition:.2s;
    }
    .filter-btn:hover,.filter-btn.is-active{
      color:var(--deep);
      border-color:#b9a9df;
      background:#eee9fa;
    }
    .content-list{
      background:var(--white);
      border:1px solid var(--line);
      border-radius:var(--radius);
      overflow:hidden;
      box-shadow:var(--shadow-small);
    }
    .content-item{
      display:grid;
      grid-template-columns:108px 1fr 42px;
      gap:22px;
      align-items:center;
      padding:24px 28px;
      border-bottom:1px solid var(--line);
      transition:.2s;
    }
    .content-item:last-child{border-bottom:0}
    .content-item:hover{background:#faf8ff}
    .date-box{
      background:#f0edf8;
      border-radius:13px;
      padding:11px 8px;
      text-align:center;
      color:var(--deep);
    }
    .date-box strong{font-size:22px;line-height:1;display:block}
    .date-box small{font-size:11px;color:var(--muted)}
    .item-meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:5px;
    }
    .tag{
      font-size:12px;
      color:var(--violet);
      font-weight:800;
    }
    .status{
      font-size:11px;
      background:#edf8e4;
      color:#4e8960;
      border-radius:20px;
      padding:3px 9px;
    }
    .content-item h3{font-size:17px;line-height:1.45;margin:0 0 4px}
    .content-item p{font-size:13px;color:var(--muted);margin:0}
    .arrow{
      color:var(--violet);
      font-size:23px;
      text-align:right;
      transition:.2s;
    }
    .content-item:hover .arrow{transform:translateX(4px)}
    .empty-state{
      padding:52px 25px;
      text-align:center;
      color:var(--muted);
      font-size:14px;
    }
    .empty-state span{
      display:block;
      width:48px;
      height:48px;
      border-radius:50%;
      background:#f0edf8;
      color:var(--violet);
      line-height:48px;
      margin:0 auto 13px;
      font-size:20px;
    }
    .feature-layout{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:22px;
    }
    .feature-panel{
      min-height:300px;
      padding:34px;
      color:#fff;
      border-radius:var(--radius);
      background:
        linear-gradient(145deg,rgba(110,75,216,.2),transparent 55%),
        var(--deep-2);
      position:relative;
      overflow:hidden;
    }
    .feature-panel:after{
      content:"球";
      position:absolute;
      right:24px;
      bottom:-35px;
      color:rgba(255,255,255,.07);
      font-size:170px;
      font-weight:900;
      line-height:1;
    }
    .feature-panel h3{font-size:31px;line-height:1.25;max-width:430px;margin:14px 0}
    .feature-panel p{color:#d2cae0;max-width:490px;font-size:14px}
    .feature-panel .tag{color:var(--lime)}
    .side-notes{
      display:grid;
      gap:12px;
    }
    .note-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:15px;
      padding:21px 23px;
      min-height:92px;
      transition:.2s;
    }
    .note-card:hover{box-shadow:var(--shadow-small);transform:translateY(-2px)}
    .note-card b{display:block;font-size:16px;margin-bottom:3px}
    .note-card span{font-size:13px;color:var(--muted)}
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .scenario-card{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      padding:25px;
      min-height:185px;
      position:relative;
    }
    .scenario-card:nth-child(2){background:#e9f5ee}
    .scenario-card:nth-child(3){background:#f7f0e8}
    .scenario-icon{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:12px;
      color:var(--deep);
      background:var(--lime);
      font-weight:900;
      margin-bottom:17px;
    }
    .scenario-card h3{font-size:19px;margin:0 0 7px}
    .scenario-card p{font-size:13px;color:var(--muted);margin:0}
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      border-top:1px solid #cfc7df;
      margin-top:18px;
    }
    .timeline-step{
      position:relative;
      padding:27px 22px 0 0;
    }
    .timeline-step:not(:last-child){border-right:1px solid var(--line);margin-right:22px}
    .timeline-step:before{
      content:"";
      position:absolute;
      top:-8px;
      left:0;
      width:15px;
      height:15px;
      border:4px solid var(--paper);
      background:var(--violet);
      box-shadow:0 0 0 1px var(--violet);
      border-radius:50%;
    }
    .timeline-step strong{display:block;font-size:16px;margin-bottom:6px}
    .timeline-step p{font-size:13px;color:var(--muted);margin:0}
    .help-layout{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:30px;
      align-items:start;
    }
    .help-intro{
      background:var(--deep);
      color:#fff;
      border-radius:var(--radius);
      padding:31px;
    }
    .help-intro .section-kicker{color:var(--lime)}
    .help-intro h2{font-size:30px;margin-top:12px}
    .help-intro p{color:#cfc7df;font-size:14px}
    .faq-list{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      overflow:hidden;
    }
    .faq-list details{border-bottom:1px solid var(--line);padding:0 22px}
    .faq-list details:last-child{border-bottom:0}
    .faq-list summary{
      cursor:pointer;
      list-style:none;
      padding:19px 25px 19px 0;
      position:relative;
      font-weight:700;
      font-size:15px;
    }
    .faq-list summary::-webkit-details-marker{display:none}
    .faq-list summary:after{
      content:"+";
      position:absolute;
      right:0;
      color:var(--violet);
      font-size:22px;
      font-weight:400;
    }
    .faq-list details[open] summary:after{content:"−"}
    .faq-list details p{
      color:var(--muted);
      font-size:13px;
      margin:-5px 0 19px;
      padding-right:25px;
    }
    .cta-band{
      background:var(--deep-2);
      color:#fff;
      border-radius:var(--radius);
      padding:34px 40px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:25px;
    }
    .cta-band h2{font-size:28px;margin:0 0 6px}
    .cta-band p{color:#d2cae0;font-size:14px;margin:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#171329;color:#fff;padding:57px 0 22px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.7fr 1fr 1fr 1fr;
      gap:38px;
      padding-bottom:45px;
    }
    .footer-brand .logo{margin-bottom:17px}
    .footer-brand p{color:#aca3c0;font-size:13px;max-width:310px;margin:0}
    .footer-title{font-weight:800;font-size:14px;margin:5px 0 15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#aaa2bd;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{
      border-top:1px solid #33294e;
      padding-top:18px;
      display:flex;
      justify-content:space-between;
      gap:15px;
      color:#8d849f;
      font-size:12px;
    }
    @media(max-width:1024px){
      .header-inner{gap:16px}
      .nav a{padding:8px 9px;font-size:13px}
      .header-actions .btn{padding:10px 12px}
      .intro-grid,.feature-layout,.help-layout{gap:28px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 30px,600px)}
      .site-header,.header-inner{height:68px}
      .header-inner{gap:12px}
      .logo{flex:1}
      .logo span{font-size:14px}
      .logo-mark{width:31px;height:31px}
      .menu-toggle{display:block}
      .nav{
        display:none;
        position:absolute;
        left:15px;
        right:15px;
        top:75px;
        padding:10px;
        background:#fff;
        border:1px solid var(--line);
        border-radius:15px;
        box-shadow:var(--shadow);
        flex-direction:column;
        align-items:stretch;
      }
      .nav.is-open{display:flex}
      .nav a{padding:12px 14px}
      .header-actions{display:none}
      .page-intro{padding:48px 0 45px}
      .intro-grid{grid-template-columns:1fr}
      .page-intro h1{font-size:43px;letter-spacing:-1.8px}
      .intro-note{padding:11px 0 11px 18px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-intro{margin-top:12px}
      .content-item{grid-template-columns:65px 1fr 22px;gap:13px;padding:19px 15px}
      .date-box strong{font-size:19px}
      .content-item h3{font-size:15px}
      .content-item p{font-size:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
      .feature-layout,.help-layout{grid-template-columns:1fr}
      .scenario-grid{grid-template-columns:1fr}
      .timeline{grid-template-columns:1fr 1fr;gap:20px 0}
      .timeline-step{padding:25px 16px 0 0}
      .timeline-step:nth-child(2){border-right:0;margin-right:0}
      .cta-band{display:block;padding:28px 23px}
      .cta-actions{margin-top:21px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-bottom:6px}
    }
    @media(max-width:520px){
      .page-intro h1{font-size:36px}
      .filter-bar{align-items:flex-start}
      .filter-label{width:100%}
      .feature-panel{padding:25px;min-height:280px}
      .feature-panel h3{font-size:26px}
      .timeline{display:block}
      .timeline-step,.timeline-step:not(:last-child){border-right:0;border-bottom:1px solid var(--line);margin:0;padding:25px 0 20px}
      .timeline-step:last-child{border-bottom:0}
      .cta-actions .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category4 */
:root{
      --ink:#171329;--deep:#21183d;--deep-2:#302252;--violet:#6e4bd8;
      --lime:#c8f36b;--cyan:#6de4d3;--paper:#fbfafc;--mist:#f1eff6;
      --muted:#716b82;--line:#e6e1ee;--white:#fff;--orange:#ed9b54;
      --red:#c96b74;--radius:18px;--shadow:0 16px 45px rgba(39,27,70,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{height:78px;background:rgba(251,250,252,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.5px;white-space:nowrap}
    .logo-mark{width:34px;height:34px;border-radius:11px;background:var(--deep);display:grid;place-items:center;color:var(--lime);font-size:18px;box-shadow:5px 5px 0 #e3dafb}
    .logo span{font-size:16px}
    .logo em{font-style:normal;color:var(--violet)}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{font-size:14px;color:var(--muted);padding:9px 13px;border-radius:10px;transition:.2s}
    .nav a:hover,.nav a.active{color:var(--deep);background:#eee9fa}
    .header-actions{display:flex;align-items:center;gap:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 19px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
    .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(42,25,80,.13)}
    .btn:focus-visible,.nav a:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(109,228,211,.65);outline-offset:3px}
    .btn-light{background:#f0edf8;color:var(--deep)}
    .btn-primary{background:var(--lime);color:#202018}
    .btn-dark{background:var(--deep);color:#fff}
    .btn-outline{border-color:#cfc7df;color:var(--deep);background:transparent}
    .menu-toggle{display:none;background:var(--deep);color:#fff;border-radius:9px;padding:8px 11px;font-size:20px}
    .page-intro{padding:72px 0 62px;background:linear-gradient(125deg,#f8f6fc 0%,#f2eefb 58%,#e9f5ee 100%)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a{color:var(--violet)}
    .eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:1.5px;color:var(--violet)}
    .intro-grid{display:grid;grid-template-columns:1fr 360px;gap:70px;align-items:end}
    h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-2.8px;margin:14px 0 20px}
    .intro-copy{font-size:17px;color:var(--muted);max-width:700px;margin:0}
    .intro-panel{background:var(--deep);border-radius:24px;padding:25px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .intro-panel:after{content:"✦";position:absolute;right:22px;top:8px;color:var(--lime);font-size:70px;opacity:.22}
    .intro-panel strong{font-size:29px;display:block;color:var(--lime);line-height:1.2}
    .intro-panel p{color:#cfc7df;font-size:14px;margin:11px 0 0}
    .section{padding:82px 0}
    .section-alt{background:var(--mist)}
    .section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:20px}
    .section h2{font-size:34px;line-height:1.2;letter-spacing:-1.4px;margin:8px 0 0}
    .section-intro{color:var(--muted);max-width:560px;margin:0}
    .download-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}
    .download-card{background:var(--deep);border-radius:var(--radius);padding:35px;color:#fff;min-height:330px;position:relative;overflow:hidden}
    .download-card:before{content:"APP";position:absolute;right:22px;top:18px;font-size:65px;font-weight:900;color:rgba(255,255,255,.05)}
    .download-card h2{font-size:35px;max-width:420px}
    .download-card p{color:#c9c0d9;max-width:510px;margin:15px 0 25px}
    .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
    .tag{font-size:12px;font-weight:800;color:var(--violet)}
    .tag-row span{font-size:12px;border:1px solid #5b4c7d;border-radius:20px;padding:5px 11px;color:#d8d0e8}
    .device-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;display:flex;align-items:center;justify-content:center;min-height:330px}
    .device{width:165px;background:var(--deep);border:7px solid #3c2b60;border-radius:27px;padding:9px;box-shadow:14px 15px 0 #e7e1f0;transform:rotate(-4deg)}
    .screen{height:245px;border-radius:18px;background:linear-gradient(160deg,#5740a5,#21183d);padding:15px 11px;color:#fff}
    .screen small{color:var(--cyan)}
    .screen h3{font-size:18px;margin:28px 0 14px}
    .screen-line{height:8px;border-radius:8px;background:#725dc0;margin:9px 0}
    .screen-line.short{width:60%;background:var(--lime)}
    .benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .benefit-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.2s}
    .benefit-card:hover,.support-card:hover,.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .icon-box{width:42px;height:42px;border-radius:13px;background:#eee9fa;color:var(--violet);display:grid;place-items:center;font-weight:900;font-size:19px;margin-bottom:18px}
    .benefit-card h3,.support-card h3{font-size:19px;margin:0 0 8px}
    .benefit-card p,.support-card p{font-size:14px;color:var(--muted);margin:0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .step{padding:23px 20px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.2s;position:relative}
    .step:not(:last-child):after{content:"→";position:absolute;right:-19px;top:34px;color:var(--violet);font-size:20px;z-index:2}
    .step-number{color:var(--violet);font-size:13px;font-weight:900}
    .step h3{font-size:17px;margin:13px 0 6px}
    .step p{font-size:13px;color:var(--muted);margin:0}
    .support-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}
    .support-card{background:#e5f2e6;border-radius:var(--radius);padding:32px;transition:.2s}
    .support-card h2{font-size:30px;margin:8px 0 14px}
    .support-card p{color:#5f7165}
    .help-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 24px}
    .help-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}
    .help-row:last-child{border-bottom:0}
    .help-row b{font-size:16px}
    .help-row span{display:block;color:var(--muted);font-size:13px}
    .arrow{color:var(--violet);font-size:20px}
    .notice{border-left:4px solid var(--cyan);background:#eaf8f4;border-radius:12px;padding:20px 23px;color:#4f6967;font-size:14px}
    .faq{max-width:820px;margin:auto}
    details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:0 20px}
    summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:750;display:flex;justify-content:space-between;gap:20px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";color:var(--violet);font-size:20px}
    details[open] summary:after{content:"－"}
    details p{border-top:1px solid var(--line);padding:15px 0 17px;margin:0;color:var(--muted);font-size:14px}
    .cta-band{background:var(--deep-2);color:#fff;border-radius:24px;padding:35px 42px;display:flex;justify-content:space-between;align-items:center;gap:22px}
    .cta-band h2{font-size:30px;margin:0 0 7px}
    .cta-band p{color:#cfc7df;margin:0}
    .site-footer{background:#171329;color:#fff;padding:54px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:35px}
    .footer-brand .logo{color:#fff;margin-bottom:15px}
    .footer-brand p{color:#aaa1bb;font-size:13px;max-width:300px}
    .footer-title{font-weight:800;margin-bottom:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{font-size:13px;color:#aaa1bb;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid #34294d;margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#8f879f;font-size:12px}
    @media(max-width:1024px){.header-inner{gap:14px}.nav a{padding:8px 8px}.header-actions .btn{padding:10px 12px}.intro-grid{gap:30px}.download-layout,.support-layout{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2):after{display:none}}
    @media(max-width:768px){.site-header,.header-inner{height:68px}.header-inner{width:calc(100% - 28px)}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--paper);padding:13px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px}.header-actions{margin-left:auto}.header-actions .btn-light{display:none}.menu-toggle{display:block}.intro-grid{grid-template-columns:1fr}.page-intro{padding:50px 0}.intro-panel{max-width:400px}.section{padding:60px 0}.benefit-grid{grid-template-columns:1fr}.section-head{display:block}.section-head .section-intro{margin-top:12px}.steps{grid-template-columns:1fr}.step:after{display:none!important}.cta-band{display:block;padding:28px}.cta-band .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
    @media(max-width:520px){.container{width:min(100% - 28px,1180px)}h1{letter-spacing:-1.8px}.download-card,.device-panel{padding:24px}.device{transform:scale(.88) rotate(-4deg)}.help-list{padding:5px 17px}.help-row{align-items:flex-start}.logo span{font-size:14px}.header-actions .btn-primary{padding:9px 11px;font-size:12px}}