/* roulang page: index */
:root{
      --ink:#191722;
      --muted:#6d6b78;
      --paper:#f5f6f2;
      --white:#fff;
      --line:#e3e5df;
      --dark:#171521;
      --dark-2:#242033;
      --mint:#b9f45d;
      --mint-deep:#8fcb31;
      --violet:#7657d9;
      --amber:#f2b84b;
      --radius:18px;
      --shadow:0 18px 48px rgba(28,25,40,.09);
      --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;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    :focus-visible{outline:3px solid var(--amber);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 44px));margin:auto}
    .site-header{height:76px;background:rgba(245,246,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{font-weight:900;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--mint);border-radius:50%;margin-right:8px;box-shadow:5px 0 0 var(--violet)}
    .nav-links{display:flex;align-items:center;gap:27px;color:#555361;font-size:14px;font-weight:700}
    .nav-links a{position:relative;padding:25px 0;transition:color .2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";height:3px;background:var(--mint-deep);position:absolute;left:0;right:0;bottom:16px;border-radius:3px}
    .nav-cta,.btn-primary{background:var(--mint);color:#162015;font-weight:900;border-radius:10px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-cta:hover,.btn-primary:hover{background:#d0ff75;transform:translateY(-2px);box-shadow:0 8px 20px rgba(143,203,49,.22)}
    .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
    .hero{background:var(--dark);color:#fff;min-height:600px;display:flex;align-items:center;overflow:hidden;position:relative}
    .hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(185,244,93,.2);border-radius:50%;right:-160px;top:-170px;box-shadow:0 0 0 38px rgba(185,244,93,.035),0 0 0 78px rgba(118,87,217,.06)}
    .hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:72px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.13;letter-spacing:-.06em;margin:20px 0 22px;max-width:690px}
    .hero-copy{font-size:17px;color:#c4c1ce;max-width:600px}
    .hero-actions{display:flex;gap:13px;margin-top:32px;flex-wrap:wrap}
    .btn-secondary{border:1px solid #555061;color:#fff;border-radius:10px;padding:10px 18px;font-weight:800;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .hero-note{display:flex;gap:22px;margin-top:38px;color:#aaa6b6;font-size:13px}
    .hero-note strong{display:block;color:#fff;font-size:20px;line-height:1.2}
    .orbit{height:390px;position:relative;display:flex;align-items:center;justify-content:center}
    .orbit-ring{width:310px;height:310px;border:1px dashed rgba(185,244,93,.45);border-radius:50%;position:absolute}
    .orbit-ring:after{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--mint);top:24px;right:42px;box-shadow:0 0 0 8px rgba(185,244,93,.12)}
    .info-panel{width:285px;background:#29243b;border:1px solid #4a425d;border-radius:20px;padding:22px;box-shadow:0 24px 55px rgba(0,0,0,.32);transform:rotate(-4deg);position:relative;z-index:2}
    .panel-top{display:flex;justify-content:space-between;color:#aaa3b9;font-size:12px;margin-bottom:20px}
    .live-dot{color:var(--mint);font-weight:800}.live-dot:before{content:"";display:inline-block;width:7px;height:7px;background:var(--mint);border-radius:50%;margin-right:6px}
    .score-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #423b52;padding:15px 0}
    .score-row b{font-size:14px}.score{font-size:24px;color:var(--mint);font-weight:900}
    .mini-bars{display:flex;align-items:end;gap:7px;height:62px;margin-top:14px}
    .mini-bars span{flex:1;background:var(--violet);border-radius:5px 5px 0 0}.mini-bars span:nth-child(2),.mini-bars span:nth-child(5){height:78%;background:var(--mint)}.mini-bars span:nth-child(1){height:44%}.mini-bars span:nth-child(3){height:58%}.mini-bars span:nth-child(4){height:92%}.mini-bars span:nth-child(6){height:68%}
    .float-tag{position:absolute;background:#fff;color:var(--ink);padding:12px 15px;border-radius:12px;box-shadow:var(--shadow);font-size:12px;font-weight:800;z-index:3}.float-tag strong{display:block;font-size:17px}.tag-one{top:45px;right:0}.tag-two{bottom:42px;left:0}.tag-two strong{color:var(--violet)}
    .section{padding:94px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.section h2{font-size:34px;letter-spacing:-.045em;line-height:1.25}.section-intro{color:var(--muted);max-width:520px}
    .text-link{font-weight:900;color:#5540b9;white-space:nowrap}.text-link:hover{color:var(--violet)}
    .news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
    .feature-news,.news-list{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .feature-news{padding:34px;min-height:325px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .feature-news:after{content:"01";position:absolute;right:22px;bottom:-22px;font-size:150px;font-weight:900;color:#f0f1eb;line-height:1}
    .label{display:inline-flex;color:#5740bd;background:#eeeafd;border-radius:5px;padding:4px 9px;font-size:12px;font-weight:900}.label.green{background:#ecf8d8;color:#487215}.label.orange{background:#fff3d9;color:#946315}
    .feature-news h3{font-size:27px;line-height:1.35;max-width:510px;margin:18px 0 10px;position:relative;z-index:1}.feature-news p{color:var(--muted);max-width:500px;position:relative;z-index:1}.meta{display:flex;align-items:center;gap:12px;color:#898692;font-size:12px;margin-top:20px;position:relative;z-index:1}
    .news-list{padding:9px 25px}.news-item{display:grid;grid-template-columns:42px 1fr auto;gap:15px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}.news-item:last-child{border-bottom:0}.news-item:hover{padding-left:6px}.news-no{font-size:13px;color:var(--violet);font-weight:900}.news-item h4{font-size:16px;line-height:1.45}.news-item small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.arrow{font-size:20px;color:#aaa}
    .download-section{background:var(--dark);color:#fff;padding:86px 0;overflow:hidden}.download-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:85px;align-items:center}.download-section .section-kicker{color:var(--mint)}.download-section h2{font-size:38px;line-height:1.25;margin:15px 0}.download-section p{color:#bbb6c7}.download-copy{max-width:560px}.device{width:250px;height:430px;border:7px solid #3d374c;border-radius:34px;background:#f6f7f2;margin:auto;box-shadow:0 20px 60px rgba(0,0,0,.32);padding:15px;color:var(--ink);transform:rotate(4deg)}.device-notch{width:80px;height:17px;background:#3d374c;border-radius:0 0 12px 12px;margin:-15px auto 20px}.device h3{font-size:18px}.device-line{height:9px;background:#dedfd8;border-radius:10px;margin:12px 0}.device-line.short{width:55%}.device-card{background:#242033;color:#fff;border-radius:13px;padding:15px;margin-top:22px}.device-card b{color:var(--mint);font-size:20px}.download-tools{display:flex;gap:18px;align-items:center;margin-top:25px}.qr{width:88px;height:88px;background:repeating-linear-gradient(45deg,#fff 0 5px,#222 5px 9px);border:8px solid #fff;border-radius:5px}.download-info{font-size:12px;color:#aca8b6}.download-info strong{display:block;color:#fff;font-size:15px;margin-bottom:3px}.download-note{font-size:12px;margin-top:18px;color:#928da0!important}
    .guide-strip{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.guide-item{padding:25px 18px;border-right:1px solid var(--line);transition:.2s}.guide-item:last-child{border:0}.guide-item:hover{background:#fff}.guide-item b{display:block;font-size:16px;margin:10px 0 4px}.guide-item p{font-size:13px;color:var(--muted);line-height:1.6}.guide-num{color:var(--violet);font-weight:900;font-size:12px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.step{position:relative;padding:27px 24px;background:#fff;border:1px solid var(--line);border-radius:15px}.step:not(:last-child):after{content:"→";position:absolute;right:-17px;top:40%;color:var(--violet);font-size:22px;z-index:2}.step-num{color:var(--violet);font-weight:900;font-size:13px}.step h3{font-size:18px;margin:13px 0 7px}.step p{color:var(--muted);font-size:14px}
    .faq-wrap{max-width:850px;margin:auto}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:20px 4px}.faq summary{cursor:pointer;list-style:none;font-weight:900;font-size:16px;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--violet);font-size:22px;line-height:1}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);padding:12px 35px 0 0;max-width:720px}
    .cta{background:var(--mint);border-radius:22px;padding:43px 50px;display:flex;align-items:center;justify-content:space-between;gap:25px}.cta h2{font-size:29px;line-height:1.3}.cta p{margin-top:7px;color:#45552e}.cta .btn-dark{background:var(--dark);color:#fff;padding:13px 21px;border-radius:10px;font-weight:900;white-space:nowrap;transition:.2s}.cta .btn-dark:hover{background:var(--violet);transform:translateY(-2px)}
    footer{background:var(--dark);color:#fff;padding:58px 0 25px}.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#a9a4b4;max-width:300px;margin-top:15px;font-size:13px}.footer-title{font-weight:900;margin-bottom:15px}.footer-links{list-style:none;color:#aaa6b5;font-size:13px}.footer-links li{margin:9px 0}.footer-links a:hover{color:var(--mint)}.footer-bottom{border-top:1px solid #373143;margin-top:42px;padding-top:20px;color:#8e899a;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:900px){.hero-grid,.download-grid,.news-layout{grid-template-columns:1fr;gap:35px}.hero{padding:80px 0}.orbit{height:350px}.guide-strip{grid-template-columns:repeat(3,1fr)}.guide-item:nth-child(3){border-right:0}.guide-item:nth-child(n+4){border-top:1px solid var(--line)}.steps{grid-template-columns:repeat(2,1fr)}.step:nth-child(2):after{display:none}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:680px){.container{width:min(100% - 36px,var(--container))}.site-header{height:68px}.brand{font-size:16px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:18px;right:18px;top:68px;background:#fff;padding:12px 18px;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:0}.nav-links.open{display:flex}.nav-links a{padding:12px 0}.nav-links a.active:after{bottom:5px}.nav-cta{margin:8px 0;text-align:center}.hero{min-height:auto;padding:65px 0 55px}.hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-note{gap:15px}.orbit{transform:scale(.86);margin:-10px -25px}.section{padding:62px 0}.section-head{display:block}.section h2{font-size:28px}.section-intro{margin-top:10px}.section-head .text-link{display:inline-block;margin-top:15px}.feature-news{padding:25px;min-height:300px}.feature-news h3{font-size:22px}.news-list{padding:4px 18px}.news-item{grid-template-columns:29px 1fr auto;padding:16px 0}.news-item h4{font-size:14px}.download-section{padding:62px 0}.download-grid{display:flex;flex-direction:column-reverse}.download-section h2{font-size:29px}.device{transform:none}.download-tools{align-items:flex-start}.guide-strip{grid-template-columns:repeat(2,1fr)}.guide-item:nth-child(2n){border-right:0}.guide-item:nth-child(3){border-right:1px solid var(--line)}.steps{grid-template-columns:1fr}.step:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-22px}.cta{padding:30px 25px;display:block}.cta .btn-dark{display:inline-flex;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:8px}}

/* roulang page: category1 */
:root{
      --ink:#191722;
      --muted:#6d6b78;
      --paper:#f5f6f2;
      --white:#fff;
      --line:#e3e5df;
      --dark:#171521;
      --dark-2:#242033;
      --mint:#b9f45d;
      --mint-deep:#8fcb31;
      --violet:#7657d9;
      --amber:#f2b84b;
      --radius:18px;
      --shadow:0 18px 48px rgba(28,25,40,.09);
      --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;font-size:15px}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 44px));margin:auto}
    .site-header{height:76px;background:rgba(245,246,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{font-weight:900;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--mint);border-radius:50%;margin-right:8px;box-shadow:5px 0 0 var(--violet)}
    .nav-links{display:flex;align-items:center;gap:27px;color:#555361;font-size:14px;font-weight:700}
    .nav-links a{position:relative;padding:25px 0;transition:color .2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";height:3px;background:var(--mint-deep);position:absolute;left:0;right:0;bottom:16px;border-radius:3px}
    .nav-cta,.btn-primary{background:var(--mint);color:#162015;font-weight:900;border-radius:10px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-cta:hover,.btn-primary:hover{background:#d0ff75;transform:translateY(-2px);box-shadow:0 8px 20px rgba(143,203,49,.22)}
    .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
    .page-hero{background:var(--dark);color:#fff;padding:74px 0 82px;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:390px;height:390px;border:1px solid rgba(185,244,93,.22);border-radius:50%;right:-110px;top:-190px;box-shadow:0 0 0 35px rgba(185,244,93,.04),0 0 0 75px rgba(118,87,217,.07)}
    .breadcrumb{display:flex;gap:10px;align-items:center;color:#aaa6b6;font-size:13px;margin-bottom:30px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--mint)}
    .page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:end;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:900;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    h1{font-size:clamp(34px,4vw,54px);line-height:1.18;letter-spacing:-.045em;margin:16px 0 20px}
    .hero-copy{font-size:17px;color:#c4c1ce;max-width:670px;margin:0}
    .hero-side{border-left:1px solid #4a4358;padding-left:28px}
    .hero-side strong{display:block;font-size:31px;color:var(--mint);line-height:1.2}
    .hero-side p{color:#bbb6c7;margin:10px 0 0}
    .section{padding:92px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section h2{font-size:34px;letter-spacing:-.045em;line-height:1.25;margin:10px 0}
    .section-intro{color:var(--muted);max-width:540px;margin:0}
    .text-link{font-weight:900;color:#5540b9;white-space:nowrap}
    .text-link:hover{color:var(--violet)}
    .featured{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;margin-bottom:56px}
    .feature-news,.news-list,.side-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .feature-news{padding:38px;min-height:340px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .feature-news:after{content:"01";position:absolute;right:20px;bottom:-25px;font-size:160px;font-weight:900;color:#f0f1eb;line-height:1}
    .tag{display:inline-flex;align-items:center;width:max-content;padding:5px 10px;border-radius:999px;background:#eef8dc;color:#4d721a;font-size:12px;font-weight:900}
    .tag.violet{background:#eeeafd;color:#5941b2}
    .tag.amber{background:#fff3d9;color:#91610e}
    .feature-news h3{font-size:28px;line-height:1.35;max-width:580px;margin:18px 0 10px;position:relative;z-index:1}
    .feature-news p{color:var(--muted);max-width:570px;position:relative;z-index:1;margin:0}
    .meta{display:flex;align-items:center;gap:12px;color:#898692;font-size:12px;margin-top:22px;position:relative;z-index:1}
    .meta span+span:before{content:"";display:inline-block;width:4px;height:4px;background:var(--mint-deep);border-radius:50%;margin:0 12px 2px 0}
    .news-list{padding:9px 25px}
    .news-item{display:grid;grid-template-columns:42px 1fr auto;gap:15px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}
    .news-item:last-child{border-bottom:0}
    .news-item:hover{padding-left:6px}
    .news-number{font-size:14px;color:var(--violet);font-weight:900}
    .news-item h4{font-size:16px;line-height:1.45;margin:0}
    .news-item small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
    .arrow{font-size:20px;color:#aaa;transition:.2s}
    .news-item:hover .arrow{color:var(--violet);transform:translateX(3px)}
    .content-layout{display:grid;grid-template-columns:1fr 310px;gap:28px;align-items:start}
    .timeline{display:flex;flex-direction:column;gap:15px}
    .timeline-item{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:25px 28px;display:grid;grid-template-columns:110px 1fr;gap:25px;transition:.2s}
    .timeline-item:hover{border-color:#c7dca3;transform:translateY(-2px);box-shadow:0 12px 28px rgba(28,25,40,.07)}
    .date{color:var(--violet);font-size:13px;font-weight:900;padding-top:3px}
    .timeline-item h3{font-size:20px;line-height:1.4;margin:0 0 8px}
    .timeline-item p{color:var(--muted);margin:0;font-size:14px}
    .item-foot{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:12px;color:#8b8993}
    .side-panel{padding:24px;position:sticky;top:100px}
    .side-panel h3{font-size:20px;margin:0 0 17px}
    .side-links{list-style:none;padding:0;margin:0}
    .side-links li{border-bottom:1px solid var(--line);padding:13px 0}
    .side-links li:last-child{border-bottom:0}
    .side-links a{font-weight:800;font-size:14px;line-height:1.45;display:block}
    .side-links a:hover{color:var(--violet)}
    .side-links small{color:var(--muted);font-size:12px}
    .download-mini{margin-top:25px;background:var(--dark-2);color:#fff;border-radius:14px;padding:23px}
    .download-mini h3{font-size:19px;margin:0 0 8px}
    .download-mini p{font-size:13px;color:#c0bbc9;margin:0 0 17px}
    .btn-secondary{border:1px solid #625a70;color:#fff;border-radius:10px;padding:10px 18px;font-weight:800;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .guide-band{background:#ecefe8;padding:76px 0}
    .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white);border-radius:18px;overflow:hidden}
    .guide-item{padding:26px 22px;border-right:1px solid var(--line);transition:.2s}
    .guide-item:last-child{border:0}
    .guide-item:hover{background:#fbfff1}
    .guide-item b{display:block;font-size:16px;margin:12px 0 5px}
    .guide-item p{font-size:13px;color:var(--muted);line-height:1.65;margin:0}
    .guide-no{color:var(--violet);font-weight:900;font-size:13px}
    .faq-wrap{max-width:850px;margin:auto}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:20px 4px}
    .faq summary{cursor:pointer;list-style:none;font-weight:900;font-size:16px;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--violet);font-size:22px;line-height:1}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);padding:12px 35px 0 0;max-width:720px;margin:0}
    .cta{background:var(--mint);border-radius:22px;padding:43px 50px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:29px;line-height:1.3;margin:0 0 8px}
    .cta p{margin:0;color:#405027}
    .cta .btn-primary{background:var(--dark);color:#fff}
    .cta .btn-primary:hover{background:#302a40}
    footer{background:var(--dark);color:#fff;padding:65px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;padding-bottom:48px}
    .footer-brand .brand{display:inline-block}
    .footer-brand p{color:#aaa6b6;max-width:300px;font-size:13px;margin-top:16px}
    .footer-title{font-weight:900;font-size:14px;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0;color:#aaa6b6;font-size:13px}
    .footer-links li{margin:8px 0}
    .footer-links a:hover{color:var(--mint)}
    .footer-bottom{border-top:1px solid #393345;padding-top:20px;color:#898493;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    :focus-visible{outline:3px solid rgba(185,244,93,.75);outline-offset:3px}
    @media(max-width:1024px){
      .nav-links{gap:17px}
      .featured,.content-layout,.page-hero-grid{grid-template-columns:1fr}
      .hero-side{border-left:0;border-top:1px solid #4a4358;padding:20px 0 0}
      .side-panel{position:static}
    }
    @media(max-width:768px){
      .site-header{height:68px}
      .nav-wrap{position:relative}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:68px;left:-22px;right:-22px;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 22px 18px;flex-direction:column;align-items:stretch;gap:0}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 0}
      .nav-links a.active:after{bottom:4px}
      .nav-cta{padding:11px 15px!important;text-align:center}
      .page-hero{padding:55px 0 62px}
      .section{padding:64px 0}
      .section-head{display:block}
      .section-head .text-link{display:inline-block;margin-top:14px}
      .guide-grid{grid-template-columns:1fr 1fr}
      .guide-item:nth-child(2){border-right:0}
      .guide-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
      .timeline-item{grid-template-columns:1fr;gap:8px}
      .cta{padding:32px 25px;display:block}
      .cta .btn-primary{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .container{width:min(var(--container),calc(100% - 36px))}
      .brand{font-size:17px}
      h1{font-size:32px}
      .hero-copy{font-size:15px}
      .feature-news{padding:27px 23px}
      .feature-news h3{font-size:23px}
      .news-list{padding:5px 18px}
      .news-item{grid-template-columns:30px 1fr 16px;gap:9px;padding:17px 0}
      .news-item h4{font-size:14px}
      .guide-grid{grid-template-columns:1fr}
      .guide-item{border-right:0!important;border-bottom:1px solid var(--line)}
      .guide-item:last-child{border-bottom:0}
      .footer-grid{grid-template-columns:1fr}
      .side-panel{padding:20px}
    }

/* roulang page: category2 */
:root{
      --ink:#191722;
      --muted:#6d6b78;
      --paper:#f5f6f2;
      --white:#fff;
      --line:#e3e5df;
      --dark:#171521;
      --dark-2:#242033;
      --mint:#b9f45d;
      --mint-deep:#8fcb31;
      --violet:#7657d9;
      --amber:#f2b84b;
      --radius:18px;
      --shadow:0 18px 48px rgba(28,25,40,.09);
      --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;font-size:15px}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--mint-deep);outline-offset:4px}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 44px));margin:auto}
    .site-header{height:76px;background:rgba(245,246,242,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
    .nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{font-weight:900;letter-spacing:-.04em;font-size:20px;white-space:nowrap}
    .brand i{display:inline-block;width:10px;height:10px;background:var(--mint);border-radius:50%;margin-right:8px;box-shadow:5px 0 0 var(--violet)}
    .nav-links{display:flex;align-items:center;gap:27px;color:#555361;font-size:14px;font-weight:700}
    .nav-links a{position:relative;padding:25px 0;transition:color .2s}
    .nav-links a:hover,.nav-links a.active{color:var(--ink)}
    .nav-links a.active:after{content:"";height:3px;background:var(--mint-deep);position:absolute;left:0;right:0;bottom:16px;border-radius:3px}
    .nav-cta,.btn-primary{background:var(--mint);color:#162015;font-weight:900;border-radius:10px;padding:11px 18px;transition:.2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-cta:hover,.btn-primary:hover{background:#d0ff75;transform:translateY(-2px);box-shadow:0 8px 20px rgba(143,203,49,.22)}
    .menu-toggle{display:none;background:none;font-size:25px;color:var(--ink)}
    .page-hero{background:var(--dark);color:#fff;padding:86px 0 90px;position:relative;overflow:hidden}
    .page-hero:after{content:"指南 / GUIDE";position:absolute;right:-15px;bottom:-28px;color:rgba(255,255,255,.045);font-size:110px;font-weight:900;letter-spacing:-.08em}
    .hero-inner{position:relative;z-index:1;max-width:820px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--mint);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    .breadcrumb{display:flex;gap:9px;color:#a9a5b4;font-size:13px;margin-bottom:28px}
    .breadcrumb a:hover{color:var(--mint)}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.16;letter-spacing:-.055em;margin:16px 0 22px;max-width:780px}
    .hero-copy{font-size:17px;color:#c4c1ce;max-width:700px;margin:0}
    .hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
    .hero-points span{border:1px solid #4b4558;border-radius:999px;padding:7px 13px;color:#d9d5df;font-size:13px}
    .section{padding:94px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:32px}
    .section h2{font-size:34px;letter-spacing:-.045em;line-height:1.25;margin:12px 0 0}
    .section-intro{color:var(--muted);max-width:530px;margin:0}
    .guide-layout{display:grid;grid-template-columns:330px 1fr;gap:28px;align-items:start}
    .guide-index{background:var(--dark-2);color:#fff;border-radius:var(--radius);padding:27px;position:sticky;top:100px}
    .guide-index h3{font-size:20px;margin:0 0 20px}
    .index-list{list-style:none;padding:0;margin:0}
    .index-list li{border-top:1px solid #443d53}
    .index-list a{display:flex;gap:14px;align-items:center;padding:16px 0;color:#c1bdca;transition:.2s}
    .index-list a:hover{color:var(--mint);padding-left:5px}
    .index-list b{color:var(--mint);font-size:13px}
    .guide-content{display:grid;gap:16px}
    .guide-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow);transition:.22s}
    .guide-card:hover{transform:translateY(-3px);border-color:#c9dca5}
    .guide-card-top{display:flex;justify-content:space-between;gap:16px;align-items:start}
    .guide-card h3{font-size:21px;line-height:1.4;margin:0 0 8px}
    .guide-card p{color:var(--muted);margin:0;max-width:650px}
    .number{width:42px;height:42px;display:grid;place-items:center;background:#eff8dd;color:#4f7715;border-radius:12px;font-weight:900;flex:none}
    .badge{display:inline-flex;align-items:center;background:#f0edff;color:#5e45b9;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900;margin-bottom:13px}
    .use-section{background:#fff}
    .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .scenario{border:1px solid var(--line);border-radius:16px;padding:27px;background:var(--paper);min-height:190px}
    .scenario strong{display:block;font-size:18px;margin:16px 0 7px}
    .scenario p{color:var(--muted);margin:0;font-size:14px}
    .scenario-mark{width:36px;height:36px;border-radius:10px;background:var(--violet);color:#fff;display:grid;place-items:center;font-weight:900}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:28px 25px 10px;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step:before{content:"";width:11px;height:11px;background:var(--mint);border:3px solid var(--paper);box-sizing:content-box;border-radius:50%;position:absolute;top:-8px;left:25px}
    .step small{color:var(--violet);font-weight:900}
    .step h3{font-size:18px;margin:11px 0 7px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .mini-download{background:var(--dark);color:#fff;border-radius:22px;padding:42px 48px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
    .mini-download h2{font-size:30px;margin:12px 0}
    .mini-download p{color:#bbb6c7;max-width:650px;margin:0}
    .download-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .btn-secondary{border:1px solid #555061;color:#fff;border-radius:10px;padding:10px 18px;font-weight:800;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
    .device-note{border:1px solid #4a4358;border-radius:14px;padding:18px 20px;min-width:190px;color:#d6d2dc}
    .device-note b{display:block;color:var(--mint);font-size:24px;line-height:1.2;margin-bottom:5px}
    .faq-wrap{max-width:850px;margin:auto}
    .faq{border-top:1px solid var(--line)}
    .faq details{border-bottom:1px solid var(--line);padding:20px 4px}
    .faq summary{cursor:pointer;list-style:none;font-weight:900;font-size:16px;display:flex;justify-content:space-between;gap:20px}
    .faq summary::-webkit-details-marker{display:none}
    .faq summary:after{content:"+";color:var(--violet);font-size:22px;line-height:1}
    .faq details[open] summary:after{content:"−"}
    .faq details p{color:var(--muted);padding:12px 35px 0 0;max-width:720px;margin:0}
    .cta{background:var(--mint);border-radius:22px;padding:43px 50px;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:30px;letter-spacing:-.04em;margin:0 0 8px}
    .cta p{margin:0;color:#405126}
    .cta .btn-primary{background:var(--dark);color:#fff}
    .cta .btn-primary:hover{background:#302b40}
    footer{background:var(--dark);color:#fff;padding:64px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
    .footer-brand p{color:#aaa6b6;max-width:320px;font-size:14px;margin-top:18px}
    .footer-title{font-weight:900;margin-bottom:16px;color:var(--mint)}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:9px;color:#aaa6b6;font-size:14px}
    .footer-links a:hover{color:var(--mint)}
    .footer-bottom{border-top:1px solid #3b3549;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#8f8a9b;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:16px}
      .guide-layout{grid-template-columns:280px 1fr}
      .steps{grid-template-columns:repeat(2,1fr);border-bottom:1px solid var(--line)}
      .step:nth-child(2){border-right:0}
      .step:nth-child(3){border-top:1px solid var(--line)}
      .step:nth-child(4){border-top:1px solid var(--line)}
      .mini-download{grid-template-columns:1fr}
      .device-note{width:max-content}
    }
    @media(max-width:768px){
      .container{width:min(100% - 36px,var(--container))}
      .site-header{height:68px}
      .nav-wrap{position:relative}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:-18px;right:-18px;top:68px;background:var(--paper);border-bottom:1px solid var(--line);padding:12px 18px 20px;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 16px 28px rgba(25,23,34,.08)}
      .nav-links.is-open{display:flex}
      .nav-links a{padding:13px 0}
      .nav-links a.active:after{left:auto;width:34px;right:auto;bottom:8px}
      .nav-cta{margin-top:8px;text-align:center;padding:11px}
      .page-hero{padding:62px 0 68px}
      h1{font-size:36px}
      .section{padding:65px 0}
      .section-head{display:block}
      .section-intro{margin-top:15px}
      .guide-layout{grid-template-columns:1fr}
      .guide-index{position:static}
      .scenario-grid{grid-template-columns:1fr}
      .mini-download{padding:31px 25px}
      .cta{display:block;padding:32px 25px}
      .cta .btn-primary{margin-top:22px;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media(max-width:520px){
      .brand{font-size:17px}
      .hero-points{display:grid}
      .hero-points span{width:max-content;max-width:100%}
      .guide-card{padding:23px 20px}
      .guide-card-top{gap:10px}
      .guide-card h3{font-size:18px}
      .steps{display:block}
      .step{border-right:0;border-bottom:1px solid var(--line);padding-left:22px}
      .step:before{left:22px}
      .device-note{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category3 */
:root{
            --ink:#191722;
            --muted:#6d6b78;
            --paper:#f5f6f2;
            --white:#fff;
            --line:#e3e5df;
            --dark:#171521;
            --dark-2:#242033;
            --mint:#b9f45d;
            --mint-deep:#8fcb31;
            --violet:#7657d9;
            --amber:#f2b84b;
            --radius:18px;
            --shadow:0 18px 48px rgba(28,25,40,.09);
            --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;
            font-size:15px;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer;border:0}
        .container{width:min(var(--container),calc(100% - 44px));margin:auto}
        .site-header{
            height:76px;
            background:rgba(245,246,242,.94);
            border-bottom:1px solid var(--line);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(14px);
        }
        .nav-wrap{
            height:100%;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:28px;
        }
        .brand{
            font-weight:900;
            letter-spacing:-.04em;
            font-size:20px;
            white-space:nowrap;
        }
        .brand i{
            display:inline-block;
            width:10px;
            height:10px;
            background:var(--mint);
            border-radius:50%;
            margin-right:8px;
            box-shadow:5px 0 0 var(--violet);
        }
        .nav-links{
            display:flex;
            align-items:center;
            gap:27px;
            color:#555361;
            font-size:14px;
            font-weight:700;
        }
        .nav-links a{
            position:relative;
            padding:25px 0;
            transition:color .2s;
        }
        .nav-links a:hover,.nav-links a.active{color:var(--ink)}
        .nav-links a.active:after{
            content:"";
            height:3px;
            background:var(--mint-deep);
            position:absolute;
            left:0;
            right:0;
            bottom:16px;
            border-radius:3px;
        }
        .nav-cta,.btn-primary{
            background:var(--mint);
            color:#162015;
            font-weight:900;
            border-radius:10px;
            padding:11px 18px!important;
            transition:.2s;
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
        }
        .nav-cta:hover,.btn-primary:hover{
            background:#d0ff75;
            transform:translateY(-2px);
            box-shadow:0 8px 20px rgba(143,203,49,.22);
        }
        .menu-toggle{
            display:none;
            background:none;
            font-size:25px;
            color:var(--ink);
        }
        .page-hero{
            background:var(--dark);
            color:#fff;
            padding:76px 0 82px;
            position:relative;
            overflow:hidden;
        }
        .page-hero:before{
            content:"";
            position:absolute;
            width:500px;
            height:500px;
            border:1px solid rgba(185,244,93,.18);
            border-radius:50%;
            right:-160px;
            top:-270px;
            box-shadow:0 0 0 38px rgba(185,244,93,.035),0 0 0 80px rgba(118,87,217,.06);
        }
        .hero-inner{position:relative;z-index:1}
        .breadcrumb{
            color:#a9a5b5;
            font-size:13px;
            margin-bottom:32px;
        }
        .breadcrumb a{color:var(--mint)}
        .eyebrow,.section-kicker{
            display:inline-flex;
            align-items:center;
            gap:8px;
            color:var(--mint);
            font-size:12px;
            font-weight:900;
            letter-spacing:.12em;
            text-transform:uppercase;
        }
        .eyebrow:before,.section-kicker:before{
            content:"";
            width:24px;
            height:2px;
            background:currentColor;
        }
        .page-hero h1{
            max-width:780px;
            font-size:clamp(36px,5vw,62px);
            letter-spacing:-.055em;
            line-height:1.14;
            margin:18px 0 18px;
        }
        .page-hero p{
            max-width:690px;
            color:#c5c1cf;
            font-size:17px;
            margin:0;
        }
        .hero-actions{
            display:flex;
            gap:13px;
            flex-wrap:wrap;
            margin-top:30px;
        }
        .btn-secondary{
            border:1px solid #555061;
            color:#fff;
            border-radius:10px;
            padding:10px 18px;
            font-weight:800;
            transition:.2s;
            display:inline-flex;
            align-items:center;
            justify-content:center;
        }
        .btn-secondary:hover{
            border-color:var(--mint);
            color:var(--mint);
            transform:translateY(-2px);
        }
        .download-dashboard{padding:82px 0}
        .section-head{
            display:flex;
            justify-content:space-between;
            align-items:end;
            gap:25px;
            margin-bottom:30px;
        }
        .section h2{
            font-size:34px;
            letter-spacing:-.045em;
            line-height:1.25;
            margin:12px 0 0;
        }
        .section-intro{
            color:var(--muted);
            max-width:520px;
            margin:0;
        }
        .download-layout{
            display:grid;
            grid-template-columns:1.02fr .98fr;
            gap:26px;
            align-items:stretch;
        }
        .device-preview{
            min-height:470px;
            background:var(--dark-2);
            border-radius:var(--radius);
            padding:28px;
            position:relative;
            overflow:hidden;
            color:#fff;
        }
        .device-preview:after{
            content:"";
            position:absolute;
            width:240px;
            height:240px;
            border:1px solid rgba(185,244,93,.23);
            border-radius:50%;
            right:-70px;
            bottom:-80px;
        }
        .device-top{
            display:flex;
            justify-content:space-between;
            color:#aaa5b6;
            font-size:12px;
            margin-bottom:20px;
        }
        .phone{
            width:238px;
            min-height:365px;
            margin:18px auto 0;
            padding:15px 13px;
            background:#0f0e17;
            border:5px solid #3a354b;
            border-radius:28px;
            box-shadow:0 20px 45px rgba(0,0,0,.3);
            position:relative;
            z-index:1;
        }
        .phone-notch{
            width:72px;
            height:6px;
            background:#49435b;
            border-radius:8px;
            margin:0 auto 18px;
        }
        .phone-title{
            font-weight:900;
            font-size:16px;
            margin-bottom:15px;
        }
        .phone-status{
            background:#242033;
            border-radius:12px;
            padding:13px;
            margin-bottom:10px;
        }
        .phone-status small{color:#aaa5b6}
        .phone-status strong{display:block;color:var(--mint);font-size:19px}
        .phone-nav{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:7px;
            margin-top:13px;
        }
        .phone-nav span{
            background:#242033;
            border-radius:8px;
            color:#c9c4d3;
            padding:8px 3px;
            text-align:center;
            font-size:10px;
        }
        .download-panel{
            background:var(--white);
            border:1px solid var(--line);
            border-radius:var(--radius);
            padding:34px;
            box-shadow:var(--shadow);
        }
        .download-panel h3{
            font-size:28px;
            line-height:1.3;
            margin:12px 0 10px;
        }
        .download-panel p{color:var(--muted)}
        .device-tags{
            display:flex;
            flex-wrap:wrap;
            gap:8px;
            margin:22px 0;
        }
        .tag{
            display:inline-flex;
            align-items:center;
            border-radius:99px;
            padding:6px 11px;
            background:#f0f1eb;
            color:#555361;
            font-size:12px;
            font-weight:800;
        }
        .tag.green{background:#eaf9cf;color:#426a13}
        .qr-row{
            display:flex;
            align-items:center;
            gap:18px;
            border-top:1px solid var(--line);
            border-bottom:1px solid var(--line);
            padding:21px 0;
            margin:23px 0;
        }
        .qr{
            width:78px;
            height:78px;
            flex:0 0 78px;
            background:
                linear-gradient(90deg,#191722 8px,transparent 8px) 0 0/20px 20px,
                linear-gradient(#191722 8px,transparent 8px) 0 0/20px 20px,
                linear-gradient(45deg,transparent 42%,#191722 43%,#191722 56%,transparent 57%) 0 0/14px 14px,
                #fff;
            border:7px solid #fff;
            outline:1px solid var(--line);
        }
        .qr-copy strong{display:block;font-size:15px}
        .qr-copy span{color:var(--muted);font-size:13px}
        .notice{
            background:#fff8e8;
            border-left:3px solid var(--amber);
            color:#74603a;
            border-radius:0 9px 9px 0;
            padding:12px 14px;
            font-size:13px;
            margin-top:20px;
        }
        .info-strip{padding:0 0 86px}
        .info-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:18px;
        }
        .info-card{
            background:var(--white);
            border:1px solid var(--line);
            border-radius:15px;
            padding:24px;
            transition:.2s;
        }
        .info-card:hover{
            transform:translateY(-4px);
            border-color:#c6d8a6;
            box-shadow:var(--shadow);
        }
        .info-number{
            color:var(--violet);
            font-size:13px;
            font-weight:900;
            letter-spacing:.08em;
        }
        .info-card h3{font-size:19px;margin:13px 0 7px}
        .info-card p{color:var(--muted);font-size:14px;margin:0}
        .steps-section{
            background:#fff;
            padding:86px 0;
            border-top:1px solid var(--line);
            border-bottom:1px solid var(--line);
        }
        .steps{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:0;
            counter-reset:step;
        }
        .step{
            padding:12px 26px 12px 0;
            margin-right:25px;
            border-right:1px solid var(--line);
            counter-increment:step;
        }
        .step:last-child{border-right:0}
        .step:before{
            content:"0" counter(step);
            color:var(--violet);
            font-size:13px;
            font-weight:900;
        }
        .step h3{font-size:18px;margin:14px 0 7px}
        .step p{color:var(--muted);font-size:14px;margin:0}
        .timeline-section{padding:88px 0}
        .timeline{
            max-width:850px;
            border-left:2px solid #dce7c8;
            margin:34px auto 0;
            padding-left:30px;
        }
        .timeline-item{
            position:relative;
            padding:0 0 30px;
        }
        .timeline-item:last-child{padding-bottom:0}
        .timeline-item:before{
            content:"";
            position:absolute;
            width:12px;
            height:12px;
            border-radius:50%;
            background:var(--mint);
            border:3px solid var(--paper);
            left:-37px;
            top:7px;
            box-shadow:0 0 0 1px var(--mint-deep);
        }
        .timeline-item h3{font-size:18px;margin:0 0 5px}
        .timeline-item p{color:var(--muted);margin:0;max-width:700px}
        .timeline-label{color:#8c8994;font-size:12px;font-weight:800}
        .faq-section{padding:78px 0 92px;background:#fff}
        .faq-wrap{max-width:850px;margin:auto}
        .faq{border-top:1px solid var(--line)}
        .faq details{border-bottom:1px solid var(--line);padding:20px 4px}
        .faq summary{
            cursor:pointer;
            list-style:none;
            font-weight:900;
            font-size:16px;
            display:flex;
            justify-content:space-between;
            gap:20px;
        }
        .faq summary::-webkit-details-marker{display:none}
        .faq summary:after{content:"+";color:var(--violet);font-size:22px;line-height:1}
        .faq details[open] summary:after{content:"−"}
        .faq details p{color:var(--muted);padding:12px 35px 0 0;max-width:720px;margin:0}
        .cta{
            background:var(--mint);
            border-radius:22px;
            padding:43px 50px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:25px;
            margin-bottom:90px;
        }
        .cta h2{font-size:29px;margin:0 0 7px;letter-spacing:-.04em}
        .cta p{margin:0;color:#43502c}
        .cta .btn-secondary{border-color:#26331c;color:#26331c}
        .cta .btn-secondary:hover{color:#26331c;background:rgba(255,255,255,.35)}
        footer{
            background:var(--dark);
            color:#fff;
            padding:62px 0 24px;
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.45fr 1fr 1fr 1fr;
            gap:35px;
            padding-bottom:45px;
        }
        .footer-brand p{color:#aaa6b6;max-width:300px;font-size:13px;margin-top:18px}
        .footer-title{font-weight:900;margin-bottom:15px}
        .footer-links{list-style:none;padding:0;margin:0}
        .footer-links li{color:#aaa6b6;font-size:13px;margin:9px 0}
        .footer-links a{transition:color .2s}
        .footer-links a:hover{color:var(--mint)}
        .footer-bottom{
            border-top:1px solid #373244;
            padding-top:20px;
            color:#898493;
            display:flex;
            justify-content:space-between;
            gap:20px;
            font-size:12px;
        }
        :focus-visible{outline:3px solid rgba(118,87,217,.45);outline-offset:3px}
        @media (max-width:1024px){
            .nav-links{gap:16px}
            .download-layout{grid-template-columns:1fr}
            .device-preview{min-height:420px}
            .phone{margin-top:12px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 36px))}
            .site-header{height:68px}
            .menu-toggle{display:block}
            .nav-links{
                display:none;
                position:absolute;
                left:18px;
                right:18px;
                top:68px;
                background:var(--white);
                border:1px solid var(--line);
                border-radius:14px;
                padding:10px 18px;
                box-shadow:var(--shadow);
                flex-direction:column;
                align-items:stretch;
                gap:0;
            }
            .nav-links.open{display:flex}
            .nav-links a{padding:13px 0}
            .nav-links a.active:after{bottom:5px}
            .nav-cta{margin:6px 0 10px;text-align:center}
            .page-hero{padding:58px 0 65px}
            .page-hero h1{font-size:39px}
            .section-head{display:block}
            .section-intro{margin-top:14px}
            .download-dashboard,.timeline-section{padding:62px 0}
            .info-strip,.faq-section{padding-bottom:64px}
            .info-grid,.steps{grid-template-columns:1fr 1fr;gap:16px}
            .step{border-right:0;border-bottom:1px solid var(--line);padding:17px 10px 20px 0;margin:0}
            .step:nth-child(odd){margin-right:15px}
            .step:nth-last-child(-n+2){border-bottom:0}
            .cta{display:block;padding:32px 25px;margin-bottom:64px}
            .cta .hero-actions{margin-top:22px}
            .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:8px}
        }
        @media (max-width:520px){
            .brand{font-size:17px}
            .page-hero h1{font-size:31px}
            .page-hero p{font-size:15px}
            .hero-actions a{width:100%}
            .download-panel{padding:24px}
            .device-preview{padding:20px;min-height:390px}
            .phone{transform:scale(.9);transform-origin:top center;margin-bottom:-28px}
            .info-grid,.steps{grid-template-columns:1fr}
            .step,.step:nth-child(odd){margin-right:0;border-bottom:1px solid var(--line)}
            .step:last-child{border-bottom:0}
            .qr-row{align-items:flex-start}
            .section h2{font-size:27px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
        }

/* 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}