/* roulang page: index */
:root{
  --ink:#171915;
  --ink-soft:#242820;
  --lime:#c8f169;
  --lime-deep:#a9d44e;
  --coral:#f47d5b;
  --cream:#f5f2e9;
  --paper:#fffdf7;
  --muted:#77786e;
  --line:#dfded3;
  --line-dark:#383b32;
  --shadow:0 18px 50px rgba(23,25,21,.10);
  --radius:18px;
  --container:1180px;
}
*{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;background:var(--cream);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer;border:0}
img{display:block;max-width:100%}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
.navbar{height:78px;display:flex;align-items:center;gap:30px}
.logo{display:flex;align-items:center;gap:12px;min-width:270px}
.logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
.logo-text{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.3}
.logo-text small{display:block;color:#aeb2a7;font-size:10px;font-weight:500;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:5px;flex:1}
.nav-links a{color:#c9ccc2;font-size:14px;padding:10px 13px;border-radius:9px;transition:.25s}
.nav-links a:hover,.nav-links a.active{background:#2a2d26;color:#fff}
.nav-links a.active{color:var(--lime)}
.nav-download,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;transition:.25s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.hero{background:var(--ink);color:#fff;padding:72px 0 92px;overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(200,241,105,.18);border-radius:50%;right:-120px;top:-180px}
.hero:after{content:"";position:absolute;width:240px;height:240px;background:var(--coral);opacity:.09;transform:rotate(35deg);right:13%;bottom:-150px}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center;position:relative;z-index:1}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:800;color:var(--lime)}
.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.12;letter-spacing:-.045em;margin:18px 0 22px;max-width:690px}
.hero-copy{color:#c7cbc0;font-size:17px;max-width:590px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn-secondary{color:#fff;border:1px solid #555a4e;padding:11px 18px;border-radius:10px;font-weight:700;transition:.25s}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
.hero-note{display:flex;gap:22px;margin-top:34px;color:#9fa49a;font-size:12px}
.hero-note strong{display:block;color:#fff;font-size:15px;margin-bottom:2px}
.portal-panel{background:#252921;border:1px solid #41463a;border-radius:24px;padding:22px;box-shadow:0 24px 60px rgba(0,0,0,.28);transform:rotate(2deg)}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #41463a;padding-bottom:18px}
.panel-title{font-size:18px;font-weight:800}.panel-status{font-size:11px;color:var(--lime);display:flex;gap:6px;align-items:center}
.panel-status i{width:7px;height:7px;background:var(--lime);border-radius:50%;display:block}
.panel-feature{background:var(--lime);color:var(--ink);padding:24px;border-radius:15px;margin:18px 0;min-height:154px;position:relative;overflow:hidden}
.panel-feature:after{content:"C7";position:absolute;font-size:110px;font-weight:900;right:-5px;bottom:-38px;opacity:.12}
.panel-feature span{font-size:12px;font-weight:800}.panel-feature h3{font-size:25px;line-height:1.25;margin-top:13px;max-width:240px}
.panel-list{display:grid;gap:10px}
.panel-row{display:flex;align-items:center;gap:12px;background:#30342c;border-radius:11px;padding:13px;color:#eef0e7}
.row-num{color:var(--coral);font-weight:900;font-size:13px}.panel-row p{font-size:13px;flex:1}.row-arrow{color:#9ca497}
.section{padding:92px 0}.section-light{background:var(--paper)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
.section-heading h2{font-size:clamp(27px,3.5vw,42px);line-height:1.18;letter-spacing:-.03em;margin-top:9px}
.section-heading p{color:var(--muted);max-width:390px;font-size:14px}
.quick-wrap{display:grid;grid-template-columns:1.2fr 2fr;gap:15px}
.quick-main{background:var(--coral);border-radius:var(--radius);padding:28px;min-height:180px;display:flex;flex-direction:column;justify-content:space-between}
.quick-main h3{font-size:25px;max-width:270px;line-height:1.3}.quick-main p{font-size:13px;max-width:310px}
.quick-main a{font-weight:800;font-size:13px}.quick-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.quick-item{background:#ebe8de;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s}
.quick-item:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow)}
.quick-item b{display:block;font-size:17px;margin-bottom:6px}.quick-item span{font-size:13px;color:var(--muted)}.quick-item em{display:block;color:var(--coral);font-style:normal;font-size:20px;margin-bottom:13px}
.download-section{background:var(--lime);overflow:hidden}
.download-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:center}
.app-visual{height:360px;position:relative;display:grid;place-items:center}
.phone{width:205px;height:348px;border:8px solid var(--ink);background:var(--paper);border-radius:30px;padding:13px;box-shadow:20px 24px 0 rgba(23,25,21,.12);transform:rotate(-7deg)}
.phone-notch{width:68px;height:6px;background:var(--ink);border-radius:5px;margin:0 auto 18px}
.phone-brand{font-weight:900;font-size:17px;margin:10px 0 18px}.phone-card{background:var(--ink);color:#fff;border-radius:12px;padding:15px;margin-bottom:10px}.phone-card strong{display:block;color:var(--lime);font-size:22px}.phone-line{height:9px;background:#e5e2d7;border-radius:8px;margin:10px 0}.qr{position:absolute;width:118px;height:118px;background:var(--paper);border:9px solid var(--paper);right:10%;bottom:15px;box-shadow:0 8px 20px rgba(23,25,21,.18);background-image:linear-gradient(45deg,var(--ink) 25%,transparent 25%,transparent 75%,var(--ink) 75%),linear-gradient(45deg,var(--ink) 25%,transparent 25%,transparent 75%,var(--ink) 75%);background-size:18px 18px;background-position:0 0,9px 9px}
.download-copy h2{font-size:clamp(29px,4vw,48px);line-height:1.15;max-width:560px;margin:12px 0 18px}.download-copy p{max-width:560px;color:#3d4930}
.download-meta{display:flex;flex-wrap:wrap;gap:10px;margin:25px 0;color:#37432b;font-size:13px}.download-meta span{border:1px solid rgba(23,25,21,.25);padding:7px 11px;border-radius:8px}
.download-copy .btn-primary{background:var(--ink);color:#fff}.download-copy .btn-primary:hover{background:#35392f}
.services-grid{display:grid;grid-template-columns:250px 1fr;gap:22px}
.service-nav{border-right:1px solid var(--line);padding-right:22px}.service-nav a{display:flex;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line);font-weight:700;font-size:14px}.service-nav a:hover{color:var(--coral)}
.service-content{background:var(--ink);color:#fff;border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1fr 1fr;gap:30px;min-height:280px}.service-content h3{font-size:30px;line-height:1.25}.service-content p{color:#bfc4b8;font-size:14px;margin:18px 0}.service-points{display:grid;gap:12px}.service-points div{border-top:1px solid #444a3e;padding-top:12px;color:#dfe3d8;font-size:13px}.service-points b{color:var(--lime);margin-right:8px}
.news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.featured-news{background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px;min-height:330px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}.featured-news:before{content:"资讯";position:absolute;right:25px;top:22px;color:var(--lime);font-weight:900;font-size:12px}.featured-news h3{font-size:28px;line-height:1.3;max-width:560px;margin:12px 0}.featured-news p{color:#b8beb2;font-size:14px;max-width:570px}.news-tag{color:var(--coral);font-size:12px;font-weight:800}.news-list{display:grid;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.news-item{padding:20px 22px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:72px 1fr 20px;gap:15px;align-items:center;transition:.2s}.news-item:last-child{border-bottom:0}.news-item:hover{background:#f0eee5}.news-date{font-size:12px;color:var(--muted)}.news-item h4{font-size:15px;line-height:1.45}.news-item small{display:block;color:var(--coral);font-size:11px;margin-top:4px}.news-arrow{color:var(--coral);font-size:20px}
.empty-state{padding:35px;color:#8b8c82;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--radius)}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-intro h2{font-size:36px;line-height:1.2;margin:10px 0 16px}.faq-intro p{color:var(--muted);font-size:14px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 21px}.faq-item summary{cursor:pointer;font-weight:800;list-style:none;display:flex;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";color:var(--coral);font-size:22px;line-height:1}.faq-item[open]{border-color:var(--coral);box-shadow:0 8px 20px rgba(23,25,21,.06)}.faq-item[open] summary:after{content:"−"}.faq-answer{color:var(--muted);font-size:14px;padding:14px 20px 0 0}
.cta{background:var(--coral);padding:62px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta h2{font-size:clamp(27px,4vw,43px);line-height:1.2}.cta p{margin-top:9px;font-size:14px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}.cta .btn-primary{background:var(--ink);color:#fff}.cta .btn-secondary{color:var(--ink);border-color:rgba(23,25,21,.35)}
.site-footer{background:var(--ink);color:#fff;padding:48px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px;padding-bottom:40px}.footer-brand p{color:#9da399;font-size:13px;max-width:280px;margin-top:17px}.footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:14px}.footer-links{display:grid;gap:8px}.footer-links a{color:#b5b9b0;font-size:13px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #353a31;padding-top:20px;color:#858b80;font-size:12px;display:flex;justify-content:space-between;gap:20px}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
@media(max-width:1024px){.navbar{gap:16px}.logo{min-width:230px}.nav-links a{padding:9px 7px}.hero-grid{gap:38px}.download-grid{gap:35px}.footer-grid{grid-template-columns:1.4fr repeat(3,.8fr)}}
@media(max-width:768px){.container{width:min(var(--container),calc(100% - 34px))}.navbar{height:68px}.logo{min-width:0;flex:1}.logo-text{font-size:13px}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:var(--ink);padding:14px 17px 20px;flex-direction:column;align-items:stretch;border-top:1px solid #34382f}.nav-links.open{display:flex}.nav-links a{padding:12px}.nav-download{padding:10px 12px;font-size:12px}.menu-toggle{display:block}.hero{padding:55px 0 70px}.hero-grid,.download-grid,.news-layout,.faq-grid{grid-template-columns:1fr}.hero h1{font-size:42px}.portal-panel{max-width:540px;margin:auto}.section{padding:65px 0}.section-heading{display:block}.section-heading p{margin-top:14px}.services-grid{grid-template-columns:1fr}.service-nav{border-right:0;padding-right:0;display:flex;overflow:auto;gap:20px}.service-nav a{white-space:nowrap;border:0}.service-content{grid-template-columns:1fr}.faq-grid{gap:32px}.cta-inner{display:block}.cta-actions{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-note{gap:13px}.quick-wrap,.quick-list{grid-template-columns:1fr}.quick-main{min-height:165px}.app-visual{height:350px}.qr{right:0}.download-copy h2{font-size:31px}.service-content{padding:25px}.service-content h3{font-size:25px}.featured-news{min-height:270px;padding:25px}.featured-news h3{font-size:23px}.news-item{grid-template-columns:60px 1fr 14px;padding:16px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}}

/* roulang page: article */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button{border:0;font:inherit;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:var(--ink);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-size:18px;font-weight:900;border-radius:11px;transform:rotate(-5deg)}
    .logo-text{font-size:15px;font-weight:800;line-height:1.3;letter-spacing:.02em}
    .logo-text small{display:block;margin-top:2px;color:#aeb2a7;font-size:10px;font-weight:500}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{padding:10px 13px;border-radius:9px;color:#c9ccc2;font-size:14px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#2a2d26;color:#fff}
    .nav-links a.active{color:var(--lime)}
    .nav-download,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:10px;background:var(--lime);color:var(--ink);font-weight:800;transition:.25s}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .article-top{padding:48px 0 35px;background:var(--paper);border-bottom:1px solid var(--line)}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:25px;color:var(--muted);font-size:13px}
    .breadcrumb a:hover{color:var(--coral)}
    .breadcrumb .current{color:var(--ink);max-width:520px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-size:12px;font-weight:900;letter-spacing:.08em}
    .article-label:before{content:"";width:28px;height:3px;background:var(--coral);border-radius:3px}
    .article-top h1{max-width:900px;margin:16px 0 19px;font-size:clamp(32px,5vw,58px);line-height:1.2;letter-spacing:-.045em}
    .article-summary{max-width:790px;margin:0;color:var(--muted);font-size:16px}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:25px;color:var(--muted);font-size:13px}
    .meta-chip{padding:6px 11px;border:1px solid var(--line);border-radius:8px;background:#f8f5ec}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:52px;align-items:start;padding:64px 0 88px}
    .article-content{min-width:0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,5vw,58px);box-shadow:var(--shadow-sm)}
    .article-content>*:first-child{margin-top:0}
    .article-content h2{margin:2em 0 .7em;font-size:29px;line-height:1.35}
    .article-content h3{margin:1.8em 0 .65em;font-size:22px;line-height:1.4}
    .article-content p{margin:0 0 1.25em;color:#42453d;font-size:16px}
    .article-content ul,.article-content ol{margin:0 0 1.35em;padding-left:1.5em;color:#42453d}
    .article-content li{margin:.45em 0}
    .article-content blockquote{margin:2em 0;padding:19px 23px;border-left:4px solid var(--lime-deep);background:#f0f4df;color:#4b5141;border-radius:0 12px 12px 0}
    .article-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.8em 0}
    .article-content th,.article-content td{padding:11px 14px;border:1px solid var(--line);white-space:nowrap;text-align:left}
    .article-content th{background:#ece9df;font-weight:800}
    .article-content a{color:#6b8e20;text-decoration:underline;text-underline-offset:3px}
    .article-content hr{margin:2.2em 0;border:0;border-top:1px solid var(--line)}
    .article-content figure{margin:2em 0}
    .article-content figcaption{margin-top:8px;color:var(--muted);font-size:12px;text-align:center}
    .empty-state{padding:48px 25px;text-align:center;border:1px dashed #c8c8bb;border-radius:15px;background:#faf8f0}
    .empty-state strong{display:block;margin-bottom:8px;font-size:22px}
    .empty-state p{margin-bottom:20px;color:var(--muted)}
    .btn-outline{display:inline-flex;align-items:center;justify-content:center;padding:10px 17px;border:1px solid var(--line-dark);border-radius:10px;font-weight:800;transition:.25s}
    .btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
    .article-side{position:sticky;top:108px}
    .side-card{padding:22px;background:#ebe8de;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px}
    .side-card h3{margin:0 0 15px;font-size:17px}
    .side-card p{margin:0;color:var(--muted);font-size:13px}
    .side-links{display:grid;gap:8px}
    .side-links a{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #d5d3c8;font-size:13px;font-weight:700}
    .side-links a:last-child{border-bottom:0}
    .side-links a:hover{color:var(--coral)}
    .side-download{background:var(--ink);color:#fff;border:0}
    .side-download p{color:#b9beb3}
    .side-download .btn-primary{width:100%;margin-top:18px}
    .related-section{padding:76px 0;background:var(--paper);border-top:1px solid var(--line)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:28px}
    .section-kicker{color:var(--coral);font-size:12px;font-weight:900;letter-spacing:.12em}
    .section-heading h2{margin:8px 0 0;font-size:32px;line-height:1.2}
    .section-heading p{max-width:360px;margin:0;color:var(--muted);font-size:14px}
    .related-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{min-height:175px;padding:23px;background:#f3f0e7;border:1px solid var(--line);border-radius:15px;transition:.25s}
    .related-card:hover{background:#fff;box-shadow:var(--shadow-sm);transform:translateY(-4px)}
    .related-card .tag{color:var(--coral);font-size:12px;font-weight:900}
    .related-card h3{margin:12px 0 15px;font-size:18px;line-height:1.4}
    .related-card span{color:var(--muted);font-size:12px}
    .bottom-cta{padding:66px 0;background:var(--lime)}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta-box h2{margin:0 0 8px;font-size:clamp(26px,4vw,40px);line-height:1.2}
    .cta-box p{margin:0;color:#4d583a;font-size:14px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:10px}
    .cta-actions .btn-primary{background:var(--ink);color:#fff}
    .cta-actions .btn-primary:hover{background:#35392f}
    .site-footer{padding:53px 0 22px;background:var(--ink);color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:30px;padding-bottom:40px}
    .footer-brand p{max-width:300px;color:#aeb2a7;font-size:13px;margin:17px 0 0}
    .footer-title{margin-bottom:14px;color:var(--lime);font-size:13px;font-weight:900}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#c9ccc2;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid #35382f;color:#858b80;font-size:12px}
    @media(max-width:1024px){
      .navbar{gap:16px}.logo{min-width:225px}.nav-links a{padding:9px 8px;font-size:13px}
      .article-layout{grid-template-columns:minmax(0,1fr) 235px;gap:28px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:68px}.logo{min-width:0;flex:1}.logo-text{font-size:14px}.logo-text small{font-size:9px}
      .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 18px;background:var(--ink);border-top:1px solid #35382f;box-shadow:0 14px 25px rgba(0,0,0,.2);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-download{padding:10px 12px;font-size:12px}.menu-toggle{display:block}
      .article-top{padding:35px 0 30px}.article-top h1{font-size:34px}
      .article-layout{display:block;padding:38px 0 58px}.article-side{position:static;margin-top:22px}
      .related-list{grid-template-columns:1fr}.related-section{padding:55px 0}
      .section-heading,.cta-box{display:block}.section-heading p{margin-top:12px}.cta-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:7px}
    }
    @media(max-width:520px){
      .logo-mark{width:34px;height:34px;font-size:16px}.logo-text small{display:none}
      .article-content{padding:23px 19px;border-radius:14px}.article-content p{font-size:15px}
      .article-top h1{font-size:29px}.breadcrumb .current{max-width:220px}
      .article-meta{gap:8px}.article-layout{padding-top:27px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
      .cta-actions a{width:100%}
    }

/* roulang page: index */
:root{
  --ink:#171914;
  --ink-soft:#30332c;
  --lime:#c9f45b;
  --lime-deep:#a9d83a;
  --coral:#f47d61;
  --cream:#f7f3ea;
  --paper:#fffdf8;
  --muted:#77786e;
  --line:#dedbd0;
  --dark:#20231d;
  --radius:18px;
  --shadow:0 18px 45px rgba(25,28,20,.10);
  --container:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--cream);color:var(--ink);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;border:0;cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:var(--paper);border-bottom:1px solid var(--line);display:flex;align-items:center;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.logo{display:flex;align-items:center;gap:11px;min-width:225px}
.logo-mark{width:39px;height:39px;background:var(--ink);color:var(--lime);border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:19px;letter-spacing:-2px}
.logo strong{font-size:16px;line-height:1.2;letter-spacing:.2px}
.logo small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
.nav{display:flex;align-items:center;gap:5px}
.nav a{padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink-soft);transition:.2s}
.nav a:hover,.nav a.active{background:#eef2df;color:var(--ink);font-weight:700}
.header-action,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:11px;padding:12px 18px;display:inline-flex;align-items:center;justify-content:center;gap:7px;transition:.2s;box-shadow:0 5px 0 #9fbd46}
.header-action:hover,.btn-primary:hover{background:#d9ff76;transform:translateY(-2px);box-shadow:0 7px 0 #9fbd46}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:11px 17px;border:1px solid var(--line);border-radius:11px;background:var(--paper);font-weight:700;transition:.2s}
.btn-secondary:hover{border-color:var(--ink);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;font-size:25px}
.hero{padding:82px 0 70px;background:var(--paper);overflow:hidden;position:relative}
.hero:before{content:"";position:absolute;width:430px;height:430px;border:1px solid #e8e4d7;border-radius:50%;right:-125px;top:-180px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:72px;position:relative}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#697c31;font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}
.eyebrow:before,.section-kicker:before{content:"";width:24px;height:3px;background:var(--coral);border-radius:3px}
.hero h1{font-size:clamp(34px,4.2vw,61px);line-height:1.14;letter-spacing:-2px;margin:20px 0 21px;max-width:680px}
.hero h1 em{font-style:normal;color:#778e32}
.hero-copy{font-size:17px;color:var(--muted);max-width:590px}
.hero-actions{display:flex;gap:13px;margin:30px 0 25px;flex-wrap:wrap}
.hero-note{display:flex;gap:20px;color:var(--muted);font-size:12px;flex-wrap:wrap}
.hero-note b{color:var(--ink)}
.visual{min-height:390px;background:var(--dark);border-radius:28px;padding:27px;position:relative;box-shadow:var(--shadow);overflow:hidden}
.visual:after{content:"";position:absolute;width:220px;height:220px;border:30px solid rgba(201,244,91,.12);border-radius:50%;right:-70px;bottom:-65px}
.visual-top{display:flex;justify-content:space-between;color:#c9cec0;font-size:12px;position:relative;z-index:1}
.visual-top b{color:var(--lime);font-size:16px}
.panel{background:#f4f5e9;border-radius:18px;padding:23px;margin:38px 20px 0;position:relative;z-index:1}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:21px}
.panel-head strong{font-size:22px}.dot{width:9px;height:9px;background:var(--coral);display:inline-block;border-radius:50%;margin-right:6px}
.panel-line{display:flex;align-items:center;gap:13px;padding:14px 0;border-bottom:1px solid #dadccf}
.panel-line:last-child{border:0}.panel-icon{width:37px;height:37px;border-radius:11px;background:var(--lime);display:grid;place-items:center;font-weight:900}
.panel-line b{font-size:14px}.panel-line small{display:block;color:var(--muted);font-size:11px}.panel-tag{margin-left:auto;background:#fff;border-radius:7px;padding:3px 7px;color:#778e32;font-size:11px}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:29px;gap:20px}.section-head h2{font-size:clamp(27px,3vw,40px);line-height:1.2;margin-top:11px;letter-spacing:-1px}.section-head p{color:var(--muted);max-width:430px;font-size:14px}
.entry-strip{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;background:var(--ink);color:#fff;border-radius:18px;overflow:hidden}
.entry-main{padding:27px;background:var(--lime);color:var(--ink)}.entry-main h3{font-size:22px;margin-bottom:7px}.entry-main p,.entry-item p{font-size:13px;color:var(--muted);line-height:1.55}.entry-main p{color:#4e5b2d}
.entry-item{padding:27px 22px;border-left:1px solid #3b3e35;transition:.2s}.entry-item:hover{background:#2c3027}.entry-item h3{font-size:16px;margin-bottom:7px;color:#fff}.entry-arrow{display:block;color:var(--lime);font-size:20px;margin-top:15px}
.download{padding:0 0 88px}.download-box{background:var(--lime);border-radius:24px;display:grid;grid-template-columns:.8fr 1.2fr;min-height:355px;overflow:hidden}
.device-area{background:#b8e847;display:flex;align-items:end;justify-content:center;position:relative;padding-top:32px}
.device{width:178px;height:295px;background:#191b17;border:8px solid #31352b;border-bottom:0;border-radius:26px 26px 0 0;padding:37px 12px 12px;position:relative;box-shadow:12px 0 0 rgba(255,255,255,.22)}
.device:before{content:"";position:absolute;top:13px;left:50%;transform:translateX(-50%);width:52px;height:5px;border-radius:9px;background:#555c49}
.device-screen{height:100%;background:#f6f8e9;border-radius:14px;padding:13px}.screen-logo{font-size:12px;font-weight:900}.screen-block{height:58px;background:var(--coral);border-radius:10px;margin:13px 0}.screen-row{height:28px;background:#e2e7cf;border-radius:7px;margin:8px 0}
.download-copy{padding:53px 65px}.download-copy h2{font-size:36px;line-height:1.2;margin:10px 0 14px}.download-copy p{max-width:500px;color:#4c572d}.download-info{display:flex;gap:20px;margin:22px 0;color:#4f5b2c;font-size:12px;flex-wrap:wrap}.download-info span{padding-left:13px;border-left:2px solid var(--coral)}.download-info b{display:block;color:var(--ink);font-size:14px}.download-actions{display:flex;align-items:center;gap:18px}.qr{width:64px;height:64px;background:repeating-linear-gradient(45deg,#20231d 0 4px,#fff 4px 8px);border:6px solid #fff;border-radius:6px}
.service-layout{display:grid;grid-template-columns:260px 1fr;gap:24px}.service-menu{background:var(--dark);color:#fff;border-radius:18px;padding:23px}.service-menu h3{font-size:18px;margin-bottom:15px;color:var(--lime)}.service-menu a{display:block;padding:10px 0;color:#c8cdc0;border-bottom:1px solid #3c4036;font-size:14px}.service-menu a:hover{color:var(--lime)}
.service-feature{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:31px;display:grid;grid-template-columns:1.2fr .8fr;gap:25px;align-items:center}.service-feature h3{font-size:25px;margin:10px 0}.service-feature p{color:var(--muted);font-size:14px}.service-badge{width:150px;height:130px;background:#edf3d5;border-radius:16px;display:grid;place-items:center;color:#829b37;font-size:45px;margin:auto;transform:rotate(3deg)}
.news-section{background:#eeeae0}.news-layout{display:grid;grid-template-columns:1fr 1fr;gap:25px}.feature-news,.news-list{background:var(--paper);border:1px solid var(--line);border-radius:18px}.feature-news{padding:31px}.news-label{color:var(--coral);font-size:12px;font-weight:800}.feature-news h3{font-size:25px;line-height:1.35;margin:25px 0 14px}.feature-news p,.news-row p{color:var(--muted);font-size:14px}.news-meta{color:#98998f;font-size:12px}.news-list{padding:8px 25px}.news-row{display:block;padding:18px 0;border-bottom:1px solid var(--line);transition:.2s}.news-row:last-child{border:0}.news-row:hover{padding-left:7px}.news-row h3{font-size:16px;line-height:1.45;margin:4px 0}.news-row .news-meta{display:flex;justify-content:space-between;gap:8px}.empty-state{text-align:center;padding:55px 20px;color:var(--muted);grid-column:1/-1}
.faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px}.faq-intro h2{font-size:36px;line-height:1.25;margin:12px 0}.faq-intro p{color:var(--muted)}.faq-list details{border-top:1px solid var(--line);padding:19px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:750;list-style:none;display:flex;justify-content:space-between;gap:20px}summary:after{content:"＋";color:var(--coral);font-size:21px}details[open] summary:after{content:"－"}details p{color:var(--muted);font-size:14px;padding:12px 32px 0 0}
.cta{background:var(--ink);color:#fff;padding:62px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}.cta h2{font-size:34px;line-height:1.3}.cta p{color:#bfc5b5;margin-top:8px}.cta-actions{display:flex;gap:12px;flex-wrap:wrap}.cta .btn-secondary{background:transparent;border-color:#555b4e;color:#fff}
.footer{background:#171914;color:#c7cbbf;padding:50px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;padding-bottom:40px;border-bottom:1px solid #35382f}.footer .logo strong{color:#fff}.footer h3{font-size:14px;color:var(--lime);margin-bottom:13px}.footer a{display:block;color:#aeb3a6;font-size:13px;margin:7px 0}.footer a:hover{color:var(--lime)}.footer-brand p{font-size:13px;color:#858b7f;max-width:280px;margin-top:13px}.copyright{display:flex;justify-content:space-between;gap:15px;padding-top:18px;color:#777d70;font-size:12px}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
@media(max-width:1024px){.nav{gap:0}.nav a{padding:8px 7px;font-size:13px}.hero-grid{gap:35px}.entry-strip{grid-template-columns:1fr 1fr}.entry-main{grid-column:1/-1}.download-copy{padding:42px}.service-layout{grid-template-columns:210px 1fr}}
@media(max-width:768px){.container{width:min(100% - 32px,600px)}.site-header{height:70px}.logo{min-width:auto}.logo small{display:none}.menu-toggle{display:block}.nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--paper);padding:12px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav.open{display:flex}.nav a{padding:12px 14px}.header-action{font-size:12px;padding:9px 11px}.hero{padding:57px 0}.hero-grid{grid-template-columns:1fr}.hero h1{font-size:39px}.visual{min-height:340px}.section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:12px}.download-box{grid-template-columns:1fr}.device-area{height:285px}.download-copy{padding:36px 25px}.download-copy h2{font-size:30px}.service-layout,.news-layout,.faq-grid{grid-template-columns:1fr}.service-menu{display:flex;gap:15px;overflow:auto;padding:17px}.service-menu h3{display:none}.service-menu a{white-space:nowrap;border:0;padding:4px}.service-feature{grid-template-columns:1fr}.service-badge{margin:0}.cta-inner{display:block}.cta-actions{margin-top:23px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:520px){.hero h1{font-size:33px;letter-spacing:-1px}.hero-copy{font-size:15px}.hero-actions>*{width:100%}.entry-strip{grid-template-columns:1fr}.entry-main{grid-column:auto}.entry-item{border-left:0;border-top:1px solid #3b3e35}.panel{margin:32px 0 0}.visual{padding:20px}.download-actions{align-items:flex-start}.download-actions .btn-primary{flex:1}.news-list{padding:5px 18px}.feature-news{padding:24px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: article */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    img{display:block;max-width:100%;height:auto}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:var(--ink);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
    .logo strong{font-size:15px;font-weight:850;letter-spacing:.02em;line-height:1.3;display:block}
    .logo small{display:block;color:#aeb2a7;font-size:10px;font-weight:500;margin-top:2px}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{color:#c9ccc2;font-size:14px;padding:10px 13px;border-radius:9px;transition:.25s}
    .nav a:hover,.nav a.active{background:#2a2d26;color:#fff}
    .nav a.active{color:var(--lime)}
    .nav-download,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;transition:.25s}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;padding:5px}
    .article-hero{background:var(--ink);color:#fff;padding:62px 0 72px;position:relative;overflow:hidden}
    .article-hero:after{content:"C7";position:absolute;right:7%;bottom:-55px;font-size:220px;line-height:1;font-weight:900;color:rgba(200,241,105,.06);pointer-events:none}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;color:#aeb2a7;font-size:13px;margin-bottom:30px;position:relative;z-index:1}
    .breadcrumb a:hover{color:var(--lime)}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .article-label:before{content:"";width:22px;height:2px;background:var(--coral)}
    .article-hero h1{max-width:880px;margin:16px 0 22px;font-size:clamp(32px,5vw,60px);line-height:1.18;letter-spacing:-.045em;overflow-wrap:anywhere}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;color:#afb4a8;font-size:13px}
    .article-meta strong{color:#fff;font-weight:600}
    .reading-area{padding:70px 0 92px}
    .reading-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:62px;align-items:start}
    .article-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:clamp(25px,5vw,58px)}
    .article-intro{font-size:18px;color:#51544a;border-left:4px solid var(--coral);padding:5px 0 5px 20px;margin-bottom:35px}
    .article-content{font-size:16px;color:#30332c;line-height:2}
    .article-content h2{font-size:30px;line-height:1.35;margin:42px 0 15px;color:var(--ink)}
    .article-content h3{font-size:23px;line-height:1.4;margin:32px 0 12px;color:var(--ink)}
    .article-content p{margin:0 0 22px}
    .article-content ul,.article-content ol{padding-left:25px;margin:18px 0 25px}
    .article-content li{margin:8px 0}
    .article-content blockquote{margin:30px 0;padding:20px 24px;background:#f0eee5;border-radius:12px;border-left:4px solid var(--lime-deep);color:#51544a}
    .article-content table{width:100%;border-collapse:collapse;margin:28px 0;display:block;overflow-x:auto}
    .article-content th,.article-content td{border:1px solid var(--line);padding:12px 15px;white-space:nowrap;text-align:left}
    .article-content th{background:#efede3;color:var(--ink);font-weight:800}
    .article-content img{border-radius:12px;margin:28px auto}
    .article-content a{color:#596d25;text-decoration:underline;text-decoration-color:var(--lime-deep);text-underline-offset:3px}
    .article-content hr{border:0;border-top:1px solid var(--line);margin:38px 0}
    .article-empty{text-align:center;padding:55px 20px}
    .article-empty .empty-mark{width:64px;height:64px;margin:0 auto 20px;border-radius:18px;background:var(--lime);display:grid;place-items:center;font-weight:900;font-size:24px}
    .article-empty h2{font-size:28px;margin:0 0 10px}
    .article-empty p{color:var(--muted);margin:0 0 25px}
    .side-card{position:sticky;top:108px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:24px}
    .side-card h2{font-size:19px;margin:0 0 17px}
    .side-card p{color:#b9beb3;font-size:13px;margin:0 0 22px}
    .side-links{display:grid;gap:9px}
    .side-links a{padding:11px 12px;border:1px solid #44493e;border-radius:9px;color:#dce0d6;font-size:13px;transition:.2s}
    .side-links a:hover{border-color:var(--lime);color:var(--lime);transform:translateX(3px)}
    .article-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);margin-top:44px;padding-top:25px}
    .back-link{display:inline-flex;align-items:center;gap:8px;color:#596d25;font-weight:800;font-size:14px}
    .back-link:hover{color:var(--coral)}
    .cta{background:var(--coral);padding:58px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(26px,4vw,40px);line-height:1.25;margin:0 0 8px}
    .cta p{margin:0;color:#3e2923;max-width:600px}
    .cta .btn-primary{background:var(--ink);color:#fff}
    .cta .btn-primary:hover{background:#35392f}
    .footer{background:var(--ink);color:#fff;padding:55px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{color:#aeb2a7;font-size:13px;max-width:280px;margin:18px 0 0}
    .footer h3{font-size:14px;margin:5px 0 16px;color:var(--lime)}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#bfc3b9;font-size:13px;margin:9px 0;transition:.2s}
    .footer-grid>div:not(.footer-brand) a:hover{color:#fff;transform:translateX(2px)}
    .copyright{border-top:1px solid #35392f;padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#858b80;font-size:12px}
    @media(max-width:1024px){
      .logo{min-width:220px}.nav{gap:0}.nav a{padding:9px 8px;font-size:13px}
      .reading-layout{grid-template-columns:minmax(0,1fr) 220px;gap:28px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:68px}.logo{min-width:0;flex:1}.logo strong{font-size:13px}.logo small{font-size:9px}
      .nav{display:none;position:absolute;left:16px;right:16px;top:75px;padding:12px;background:var(--ink-soft);border:1px solid #44493e;border-radius:14px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
      .nav.open{display:flex}.nav a{padding:12px 14px}.nav-download{padding:9px 12px;font-size:12px}.menu-toggle{display:block}
      .article-hero{padding:45px 0 58px}.article-hero h1{font-size:clamp(30px,8vw,47px)}
      .reading-area{padding:42px 0 60px}.reading-layout{display:block}.side-card{position:static;margin-top:24px}
      .cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.copyright{flex-direction:column;gap:5px}
    }
    @media(max-width:520px){
      .article-card{padding:23px 18px}.article-content{font-size:15px;line-height:1.85}
      .article-content h2{font-size:25px}.article-content h3{font-size:20px}
      .article-intro{font-size:16px;padding-left:14px}.article-bottom{display:block}.article-bottom a{display:flex;margin-top:12px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer{padding-top:42px}
    }

/* roulang page: category1 */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
    .logo strong{display:block;font-size:15px;line-height:1.3;letter-spacing:.02em}
    .logo small{display:block;color:#aeb2a7;font-size:10px;font-weight:500;margin-top:2px}
    .nav{display:flex;align-items:center;gap:5px;flex:1}
    .nav a{color:#c9ccc2;font-size:14px;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav a:hover,.nav a.active{background:#2a2d26;color:#fff}
    .nav a.active{color:var(--lime)}
    .nav-download,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .hero{background:var(--ink);color:#fff;padding:74px 0 82px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,241,105,.18);border-radius:50%;right:-150px;top:-230px}
    .hero:after{content:"";position:absolute;width:220px;height:220px;background:var(--coral);opacity:.12;transform:rotate(35deg);right:18%;bottom:-150px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:72px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--lime)}
    .hero h1{font-size:clamp(36px,5vw,62px);line-height:1.12;letter-spacing:-.045em;margin:18px 0 22px;max-width:700px}
    .hero-copy{color:#c7cbc0;font-size:17px;max-width:600px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
    .btn-secondary{color:#fff;border:1px solid #555a4e;padding:11px 18px;border-radius:10px;font-weight:700;transition:.25s}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .hero-note{display:flex;gap:28px;margin-top:32px;color:#9fa49a;font-size:12px}
    .hero-note strong{display:block;color:#fff;font-size:15px;margin-bottom:2px}
    .portal-board{background:#292d26;border:1px solid #41463a;border-radius:22px;padding:20px;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;align-items:center;color:#dce1d4;font-size:13px}
    .board-dot{width:9px;height:9px;background:var(--lime);border-radius:50%;display:inline-block;margin-right:7px}
    .board-feature{background:var(--lime);color:var(--ink);border-radius:15px;padding:23px;margin:18px 0;min-height:160px;position:relative;overflow:hidden}
    .board-feature:after{content:"C7";position:absolute;font-size:122px;font-weight:900;right:-8px;bottom:-43px;opacity:.12}
    .board-feature span{font-size:12px;font-weight:800}
    .board-feature h2{font-size:26px;line-height:1.25;max-width:260px;margin:13px 0 0}
    .board-list{display:grid;gap:10px}
    .board-row{display:flex;align-items:center;gap:12px;background:#353a30;border-radius:11px;padding:13px;color:#eef0e7}
    .board-row b{color:var(--coral);font-size:13px}
    .board-row span{font-size:13px;flex:1}
    .section{padding:88px 0}
    .section-light{background:var(--paper)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-heading h2{font-size:clamp(28px,3.5vw,43px);line-height:1.18;letter-spacing:-.03em;margin:8px 0 0}
    .section-heading p{color:var(--muted);max-width:420px;font-size:14px;margin:0}
    .portal-layout{display:grid;grid-template-columns:280px 1fr;gap:22px}
    .portal-index{background:var(--coral);border-radius:var(--radius);padding:28px;min-height:320px;display:flex;flex-direction:column;justify-content:space-between}
    .portal-index .number{font-size:76px;line-height:1;font-weight:900;letter-spacing:-.08em}
    .portal-index h3{font-size:24px;line-height:1.3;margin:18px 0 8px}
    .portal-index p{font-size:13px;margin:0}
    .portal-links{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .portal-card{background:#ebe8de;border:1px solid var(--line);border-radius:var(--radius);padding:23px;min-height:150px;transition:.25s;display:flex;flex-direction:column;justify-content:space-between}
    .portal-card:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow)}
    .portal-card .icon{color:var(--coral);font-size:22px;font-weight:900}
    .portal-card h3{font-size:18px;margin:10px 0 5px}
    .portal-card p{font-size:13px;color:var(--muted);margin:0}
    .portal-card .enter{font-size:13px;font-weight:800;margin-top:15px}
    .portal-card .enter:after{content:" →";color:var(--coral)}
    .download-section{background:var(--lime);overflow:hidden}
    .download-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:75px;align-items:center}
    .app-preview{background:#20231d;border-radius:27px;padding:18px;max-width:330px;margin:auto;box-shadow:0 20px 35px rgba(23,25,21,.2);transform:rotate(-3deg)}
    .app-screen{background:#f5f2e9;border-radius:18px;padding:18px;color:var(--ink);min-height:350px}
    .app-screen small{color:var(--muted)}
    .app-screen h3{font-size:25px;line-height:1.25;margin:15px 0 22px}
    .app-strip{height:10px;width:78%;background:var(--coral);border-radius:20px;margin-bottom:14px}
    .app-line{background:#fff;border-radius:11px;padding:14px;margin:9px 0;font-size:13px}
    .app-line strong{display:block;font-size:16px}
    .download-copy h2{font-size:clamp(30px,4vw,48px);line-height:1.15;margin:10px 0 16px}
    .download-copy p{max-width:560px;color:#37432b}
    .download-meta{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0;color:#37432b;font-size:13px}
    .download-meta span{border:1px solid rgba(23,25,21,.25);padding:7px 11px;border-radius:8px}
    .download-copy .btn-primary{background:var(--ink);color:#fff}
    .download-copy .btn-primary:hover{background:#35392f}
    .qr-row{display:flex;align-items:center;gap:16px;margin-top:22px;color:#37432b;font-size:13px}
    .qr{width:72px;height:72px;border:7px solid #fff;background:repeating-linear-gradient(45deg,#171915 0 4px,#fff 4px 8px);box-shadow:0 2px 8px rgba(0,0,0,.12)}
    .timeline{border-top:1px solid var(--line)}
    .timeline-item{display:grid;grid-template-columns:120px 120px 1fr auto;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .timeline-item time{font-size:13px;color:var(--muted)}
    .tag{display:inline-flex;align-items:center;width:max-content;background:#fce1d8;color:#9d452e;border-radius:7px;padding:5px 9px;font-size:12px;font-weight:800}
    .timeline-item h3{font-size:17px;margin:0 0 4px}
    .timeline-item p{font-size:13px;color:var(--muted);margin:0}
    .read-link{font-size:13px;font-weight:800;white-space:nowrap}
    .read-link:hover{color:var(--coral)}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-grid h2{font-size:clamp(28px,3.5vw,42px);line-height:1.2;margin:9px 0 15px}
    .faq-grid>div>p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:var(--paper);border:1px solid var(--line);border-radius:13px;overflow:hidden}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--coral);font-size:22px;line-height:1}
    .faq-item[open]{border-color:var(--coral);box-shadow:var(--shadow-sm)}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 20px 18px;color:var(--muted);font-size:14px}
    .cta{background:var(--ink);color:#fff;padding:60px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(27px,4vw,44px);line-height:1.18;margin:10px 0}
    .cta p{color:#bfc4b8;margin:0;max-width:580px}
    .footer{background:#11130f;color:#fff;padding:55px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand p{color:#aeb2a7;font-size:13px;max-width:270px;margin-top:18px}
    .footer h3{font-size:14px;margin:3px 0 14px;color:var(--lime)}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#b9beb3;font-size:13px;margin:8px 0;transition:.2s}
    .footer-grid>div:not(.footer-brand) a:hover{color:var(--lime)}
    .copyright{border-top:1px solid #30342b;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#7d8377;font-size:12px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){
      .navbar{gap:15px}.logo{min-width:230px}.nav a{padding:9px 7px;font-size:13px}
      .hero-grid,.download-grid{gap:40px}.portal-layout{grid-template-columns:230px 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{min-height:68px}.logo{min-width:0;flex:1}.nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 16px 20px;flex-direction:column;align-items:stretch;border-top:1px solid #30342b}
      .nav.open{display:flex}.nav a{padding:13px 15px}.nav-download{padding:10px 13px;font-size:13px}.menu-toggle{display:block}
      .hero{padding:58px 0 65px}.hero-grid,.download-grid,.faq-grid,.portal-layout{grid-template-columns:1fr}
      .hero-grid{gap:40px}.hero h1{font-size:clamp(34px,10vw,50px)}
      .portal-index{min-height:230px}.download-grid{gap:35px}.app-preview{transform:none}
      .section{padding:64px 0}.section-heading{display:block}.section-heading p{margin-top:14px}
      .timeline-item{grid-template-columns:85px 1fr auto;gap:11px}.timeline-item .tag{grid-row:1}.timeline-item h3{grid-column:2 / 4}.timeline-item p{grid-column:2 / 4}
      .cta-inner{display:block}.cta .btn-primary{margin-top:25px}.footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:520px){
      .hero-actions a,.cta .btn-primary{width:100%}.hero-note{gap:16px;flex-wrap:wrap}
      .portal-links{grid-template-columns:1fr}.timeline-item{grid-template-columns:78px 1fr}.timeline-item .read-link{grid-column:2}
      .qr-row{align-items:flex-start}.copyright{display:block}.copyright span{display:block;margin-top:6px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1 / -1}
    }

/* roulang page: category2 */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:var(--ink);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
    .logo strong{display:block;font-size:15px;line-height:1.3;letter-spacing:.02em}
    .logo small{display:block;color:#aeb2a7;font-size:10px;line-height:1.3;margin-top:3px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{color:#c9ccc2;font-size:14px;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav a:hover,.nav a.active{background:#2a2d26;color:#fff}
    .nav a.active{color:var(--lime)}
    .nav-download,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.25s}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .hero{background:var(--ink);color:#fff;padding:54px 0 76px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(200,241,105,.18);border-radius:50%;right:-120px;top:-210px}
    .hero:after{content:"";position:absolute;width:210px;height:210px;background:var(--coral);opacity:.11;transform:rotate(35deg);right:20%;bottom:-140px}
    .crumbs{position:relative;z-index:1;color:#aeb2a7;font-size:13px;margin-bottom:42px}
    .crumbs a:hover{color:var(--lime)}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:end;position:relative;z-index:1}
    .eyebrow,.section-kicker{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.14em}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.12;letter-spacing:-.05em;margin:16px 0 22px}
    .hero-copy{max-width:650px;color:#c7cbc0;font-size:17px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn-secondary{color:#fff;border:1px solid #555a4e;padding:11px 18px;border-radius:10px;font-weight:700;transition:.25s}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .hero-index{border-left:1px solid #44483d;padding-left:28px}
    .hero-index strong{display:block;color:var(--lime);font-size:62px;line-height:1;font-weight:900}
    .hero-index p{color:#c7cbc0;margin:12px 0 0;font-size:14px;max-width:260px}
    .section{padding:88px 0}
    .section-light{background:var(--paper)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:34px}
    .section-heading h2{font-size:clamp(28px,3.5vw,43px);line-height:1.2;letter-spacing:-.035em;margin:9px 0 0}
    .section-heading p{color:var(--muted);max-width:420px;font-size:14px;margin:0}
    .filter-bar{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:34px}
    .filter-bar a{border:1px solid var(--line);background:#ebe8de;padding:9px 15px;border-radius:9px;font-size:13px;transition:.2s}
    .filter-bar a:hover,.filter-bar a.active{background:var(--ink);border-color:var(--ink);color:var(--lime)}
    .news-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:22px}
    .feature-news{background:var(--coral);border-radius:var(--radius);padding:30px;min-height:350px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .feature-news:after{content:"C7";position:absolute;right:-12px;bottom:-42px;font-size:170px;font-weight:900;line-height:1;opacity:.12}
    .tag{display:inline-flex;align-items:center;width:max-content;background:var(--ink);color:var(--lime);border-radius:7px;padding:5px 9px;font-size:11px;font-weight:800}
    .feature-news h3{font-size:30px;line-height:1.3;max-width:450px;margin:18px 0 10px;position:relative;z-index:1}
    .feature-news p{font-size:14px;max-width:470px;position:relative;z-index:1}
    .feature-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;position:relative;z-index:1}
    .read-link{font-weight:800;border-bottom:1px solid currentColor;padding-bottom:2px}
    .read-link:hover{color:var(--ink-soft)}
    .timeline{background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:18px 24px}
    .timeline-item{display:grid;grid-template-columns:80px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
    .timeline-item:last-child{border-bottom:0}
    .timeline-date{font-size:12px;color:var(--coral);font-weight:800;padding-top:4px}
    .timeline-item h3{font-size:17px;line-height:1.4;margin:0 0 5px}
    .timeline-item p{font-size:13px;color:var(--muted);margin:0}
    .timeline-item a:hover h3{color:#687f2e}
    .info-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
    .info-box{border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--paper)}
    .info-box em{font-style:normal;color:var(--coral);font-size:24px;font-weight:900}
    .info-box h3{font-size:16px;margin:10px 0 5px}
    .info-box p{font-size:13px;color:var(--muted);margin:0}
    .process{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .process-item{padding:28px 25px 30px;border-right:1px solid var(--line)}
    .process-item:last-child{border-right:0}
    .process-num{color:var(--coral);font-size:13px;font-weight:900}
    .process-item h3{font-size:20px;margin:18px 0 8px}
    .process-item p{color:var(--muted);font-size:14px;margin:0}
    .faq-wrap{max-width:850px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-item summary{list-style:none;cursor:pointer;padding:22px 4px;font-size:17px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:22px;line-height:1}
    .faq-item[open] summary:after{content:"－";color:var(--ink)}
    .faq-answer{padding:0 42px 22px 4px;color:var(--muted);font-size:14px}
    .cta{background:var(--lime);padding:55px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(27px,4vw,42px);line-height:1.2;margin:0 0 9px}
    .cta p{margin:0;color:#455032;font-size:14px}
    .cta .btn-primary{background:var(--ink);color:#fff}
    .cta .btn-primary:hover{background:#35392f}
    .footer{background:var(--ink);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand .logo{min-width:0;margin-bottom:18px}
    .footer-brand p{color:#aeb2a7;font-size:13px;max-width:260px;margin:0}
    .footer h3{font-size:14px;margin:4px 0 15px;color:var(--lime)}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#b8bcb2;font-size:13px;margin:8px 0;transition:.2s}
    .footer-grid>div:not(.footer-brand) a:hover{color:#fff;transform:translateX(3px)}
    .copyright{border-top:1px solid #35392f;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#858b80;font-size:11px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){
      .navbar{gap:15px}.logo{min-width:230px}.nav a{padding:9px 8px;font-size:13px}
      .hero-grid,.news-layout{gap:35px}.container{width:min(var(--container),calc(100% - 36px))}
    }
    @media(max-width:768px){
      .navbar{height:70px}.logo{min-width:0;flex:1}.logo strong{font-size:13px}.nav-download{padding:10px 12px;font-size:12px}
      .menu-toggle{display:block;order:3}.nav{display:none;position:absolute;left:18px;right:18px;top:70px;padding:12px;background:var(--ink);border:1px solid #3c4037;border-radius:0 0 14px 14px;flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.hero{padding:40px 0 58px}.hero-grid,.news-layout{grid-template-columns:1fr}.hero-index{border-left:0;border-top:1px solid #44483d;padding:22px 0 0}.hero-index strong{font-size:48px}
      .section{padding:64px 0}.section-heading{display:block}.section-heading p{margin-top:14px}.info-strip,.process{grid-template-columns:1fr}.process-item{border-right:0;border-bottom:1px solid var(--line)}.process-item:last-child{border-bottom:0}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.cta-inner{display:block}.cta .btn-primary{margin-top:22px}
    }
    @media(max-width:520px){
      .container{width:min(100% - 30px,var(--container))}.nav-download{font-size:11px;padding:9px 10px}.logo-mark{width:34px;height:34px}.hero h1{font-size:38px}
      .hero-copy{font-size:15px}.feature-news{min-height:310px;padding:23px}.feature-news h3{font-size:24px}.timeline{padding:10px 17px}.timeline-item{grid-template-columns:64px 1fr;gap:10px}
      .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }

/* roulang page: category3 */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      background:var(--cream);
      color:var(--ink);
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    button,input,select{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{
      background:var(--ink);
      color:#fff;
      position:sticky;
      top:0;
      z-index:50;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .navbar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:28px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:270px;
    }
    .logo-mark{
      width:38px;
      height:38px;
      background:var(--lime);
      color:var(--ink);
      display:grid;
      place-items:center;
      font-weight:900;
      font-size:18px;
      border-radius:11px;
      transform:rotate(-5deg);
      flex:none;
    }
    .logo strong{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.3}
    .logo small{
      display:block;
      color:#aeb2a7;
      font-size:10px;
      font-weight:500;
      margin-top:2px;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:4px;
      flex:1;
    }
    .nav a{
      color:#c9ccc2;
      font-size:14px;
      padding:10px 12px;
      border-radius:9px;
      transition:.25s ease;
      white-space:nowrap;
    }
    .nav a:hover,.nav a:focus,.nav a.active{
      background:#2a2d26;
      color:#fff;
    }
    .nav a.active{color:var(--lime)}
    .nav-download,.btn-primary{
      background:var(--lime);
      color:var(--ink);
      font-weight:800;
      border-radius:10px;
      padding:12px 18px;
      transition:.25s ease;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      white-space:nowrap;
    }
    .nav-download:hover,.btn-primary:hover{
      background:#ddff8b;
      transform:translateY(-2px);
      box-shadow:0 8px 22px rgba(200,241,105,.2);
    }
    .nav-download:focus,.btn-primary:focus,.btn-secondary:focus,.faq-question:focus,a:focus-visible{
      outline:3px solid rgba(244,125,91,.55);
      outline-offset:3px;
    }
    .menu-toggle{
      display:none;
      background:transparent;
      color:#fff;
      font-size:25px;
      line-height:1;
      padding:8px;
    }
    .breadcrumb-bar{
      background:var(--paper);
      border-bottom:1px solid var(--line);
    }
    .breadcrumb{
      margin:0;
      padding:16px 0;
      font-size:13px;
      color:var(--muted);
    }
    .breadcrumb a:hover{color:var(--ink)}
    .breadcrumb .current{color:var(--ink);font-weight:700}
    .download-hero{
      background:var(--ink);
      color:#fff;
      padding:78px 0 88px;
      position:relative;
      overflow:hidden;
    }
    .download-hero:before{
      content:"";
      position:absolute;
      width:480px;
      height:480px;
      border:1px solid rgba(200,241,105,.18);
      border-radius:50%;
      right:-145px;
      top:-220px;
    }
    .download-hero:after{
      content:"";
      position:absolute;
      width:240px;
      height:240px;
      background:var(--coral);
      opacity:.11;
      transform:rotate(35deg);
      left:47%;
      bottom:-180px;
    }
    .hero-inner{
      display:grid;
      grid-template-columns:1fr .95fr;
      gap:80px;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .eyebrow,.section-kicker{
      color:var(--lime);
      font-size:12px;
      letter-spacing:.14em;
      font-weight:800;
    }
    .download-hero h1{
      font-size:clamp(36px,5vw,62px);
      line-height:1.12;
      letter-spacing:-.045em;
      margin:18px 0 22px;
      max-width:650px;
    }
    .hero-copy{
      color:#c7cbc0;
      font-size:17px;
      max-width:590px;
      margin:0;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
    .btn-secondary{
      color:#fff;
      border:1px solid #555a4e;
      padding:11px 18px;
      border-radius:10px;
      font-weight:700;
      transition:.25s ease;
      display:inline-flex;
      align-items:center;
      justify-content:center;
    }
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .hero-note{
      display:flex;
      gap:26px;
      margin-top:34px;
      color:#9fa49a;
      font-size:12px;
      flex-wrap:wrap;
    }
    .hero-note strong{
      display:block;
      color:#fff;
      font-size:15px;
      margin-bottom:2px;
    }
    .app-preview{
      background:#2b2f27;
      border:1px solid #454a3f;
      border-radius:24px;
      padding:22px;
      max-width:410px;
      margin-left:auto;
      box-shadow:var(--shadow);
      transform:rotate(2deg);
    }
    .preview-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      color:#b9beb2;
      font-size:12px;
      padding:0 4px 16px;
    }
    .preview-dots{display:flex;gap:5px}
    .preview-dots i{display:block;width:6px;height:6px;border-radius:50%;background:var(--coral)}
    .preview-dots i:nth-child(2){background:var(--lime)}
    .preview-dots i:nth-child(3){background:#8b9082}
    .preview-screen{
      background:var(--paper);
      color:var(--ink);
      border-radius:16px;
      padding:22px;
      min-height:330px;
    }
    .preview-brand{font-weight:900;font-size:18px}
    .preview-brand span{color:var(--coral)}
    .preview-welcome{margin:22px 0 16px}
    .preview-welcome small{color:var(--muted);font-size:11px}
    .preview-welcome h2{font-size:26px;line-height:1.2;margin:3px 0 0}
    .preview-highlight{
      background:var(--lime);
      border-radius:13px;
      padding:18px;
      min-height:106px;
      position:relative;
      overflow:hidden;
    }
    .preview-highlight:after{
      content:"C7";
      position:absolute;
      right:-3px;
      bottom:-32px;
      font-size:95px;
      font-weight:900;
      opacity:.13;
    }
    .preview-highlight small{font-weight:800}
    .preview-highlight strong{display:block;font-size:21px;margin-top:9px}
    .preview-lines{display:grid;gap:9px;margin-top:14px}
    .preview-line{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding:11px 12px;
      border:1px solid var(--line);
      border-radius:9px;
      font-size:12px;
    }
    .preview-line b{color:var(--coral);font-size:15px}
    .section{padding:88px 0}
    .section-light{background:var(--paper)}
    .section-heading{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:25px;
      margin-bottom:34px;
    }
    .section-heading h2{
      font-size:clamp(28px,3.5vw,43px);
      line-height:1.18;
      letter-spacing:-.03em;
      margin:8px 0 0;
    }
    .section-heading p{color:var(--muted);max-width:430px;font-size:14px;margin:0}
    .download-board{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:70px;
      align-items:center;
    }
    .qr-panel{
      background:var(--lime);
      border-radius:var(--radius);
      padding:35px;
      min-height:390px;
      position:relative;
      overflow:hidden;
    }
    .qr-panel:after{
      content:"C7APP";
      position:absolute;
      right:-28px;
      bottom:-34px;
      color:rgba(23,25,21,.1);
      font-size:78px;
      font-weight:900;
      transform:rotate(-8deg);
    }
    .qr-panel h2{font-size:30px;line-height:1.25;margin:0 0 25px;max-width:260px}
    .qr-wrap{
      width:174px;
      height:174px;
      background:#fff;
      border:10px solid #fff;
      border-radius:10px;
      display:grid;
      place-items:center;
      position:relative;
      z-index:1;
      box-shadow:0 8px 22px rgba(23,25,21,.12);
    }
    .qr-code{
      width:142px;
      height:142px;
      background:
        linear-gradient(90deg,#171915 9px,transparent 9px) 0 0/28px 28px,
        linear-gradient(#171915 9px,transparent 9px) 0 0/28px 28px,
        linear-gradient(45deg,transparent 44%,#171915 45%,#171915 55%,transparent 56%) 0 0/17px 17px,
        #fff;
      position:relative;
    }
    .qr-code:before,.qr-code:after{
      content:"";
      position:absolute;
      width:30px;
      height:30px;
      border:7px solid #171915;
      background:#fff;
    }
    .qr-code:before{left:4px;top:4px}
    .qr-code:after{right:4px;bottom:4px}
    .qr-label{font-size:12px;font-weight:800;margin-top:15px;position:relative;z-index:1}
    .download-content h2{font-size:34px;line-height:1.2;margin:10px 0 14px}
    .download-content>p{color:var(--muted);max-width:600px}
    .benefit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:27px 0}
    .benefit{
      border:1px solid var(--line);
      border-radius:13px;
      background:var(--paper);
      padding:18px;
      transition:.25s ease;
    }
    .benefit:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--lime-deep)}
    .benefit b{display:block;font-size:16px;margin-bottom:4px}
    .benefit span{font-size:13px;color:var(--muted)}
    .device-form{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      margin-top:25px;
    }
    .device-form select{
      min-width:190px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink);
      border-radius:10px;
      padding:11px 14px;
    }
    .meta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
    .meta-row span{
      color:var(--muted);
      border:1px solid var(--line);
      padding:7px 11px;
      border-radius:8px;
      font-size:12px;
    }
    .steps-section{background:var(--cream)}
    .steps-layout{display:grid;grid-template-columns:260px 1fr;gap:58px}
    .steps-intro{border-right:1px solid var(--line);padding-right:30px}
    .steps-intro h2{font-size:32px;line-height:1.25;margin:9px 0 15px}
    .steps-intro p{color:var(--muted);font-size:14px}
    .step-list{display:grid;gap:16px}
    .step{
      display:grid;
      grid-template-columns:58px 1fr;
      gap:20px;
      align-items:start;
      padding:21px 0;
      border-bottom:1px solid var(--line);
    }
    .step:last-child{border-bottom:0}
    .step-number{
      width:48px;
      height:48px;
      border-radius:14px;
      background:var(--ink);
      color:var(--lime);
      display:grid;
      place-items:center;
      font-weight:900;
      font-size:18px;
    }
    .step h3{font-size:19px;margin:0 0 5px}
    .step p{color:var(--muted);font-size:14px;margin:0;max-width:570px}
    .info-strip{
      background:var(--ink);
      color:#fff;
      border-radius:var(--radius);
      padding:28px 32px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:25px;
    }
    .info-strip h2{font-size:24px;margin:0 0 5px}
    .info-strip p{color:#adb2a6;font-size:14px;margin:0}
    .info-strip .btn-primary{flex:none}
    .faq-section{background:var(--paper)}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:75px}
    .faq-lead h2{font-size:34px;line-height:1.2;margin:9px 0 14px}
    .faq-lead p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:11px}
    .faq-item{
      border:1px solid var(--line);
      border-radius:13px;
      background:#fff;
      overflow:hidden;
      transition:.25s ease;
    }
    .faq-item[open]{border-color:var(--lime-deep);box-shadow:var(--shadow-sm)}
    .faq-question{
      list-style:none;
      cursor:pointer;
      padding:18px 21px;
      font-weight:800;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:15px;
    }
    .faq-question::-webkit-details-marker{display:none}
    .faq-question:after{content:"+";font-size:23px;color:var(--coral);font-weight:400}
    .faq-item[open] .faq-question:after{content:"−";color:var(--ink)}
    .faq-answer{padding:0 21px 19px;color:var(--muted);font-size:14px}
    .cta{
      background:var(--coral);
      padding:58px 0;
    }
    .cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:30px;
    }
    .cta h2{font-size:clamp(28px,4vw,42px);line-height:1.18;margin:0 0 10px}
    .cta p{margin:0;max-width:600px;font-size:15px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex:none}
    .cta .btn-primary{background:var(--ink);color:#fff}
    .cta .btn-primary:hover{background:#35392f}
    .footer{background:var(--ink);color:#fff;padding:58px 0 25px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:35px;
      padding-bottom:42px;
      border-bottom:1px solid #383b32;
    }
    .footer-brand .logo{min-width:0;margin-bottom:17px}
    .footer-brand p{color:#aeb2a7;font-size:13px;max-width:270px;margin:0}
    .footer h3{font-size:14px;margin:4px 0 15px;color:#fff}
    .footer-grid>div:not(.footer-brand) a{
      display:block;
      color:#aeb2a7;
      font-size:13px;
      margin:8px 0;
      transition:.2s;
    }
    .footer-grid>div:not(.footer-brand) a:hover{color:var(--lime);padding-left:3px}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:20px;
      color:#7f8579;
      font-size:12px;
      flex-wrap:wrap;
    }
    @media (max-width:1024px){
      .navbar{gap:16px}
      .logo{min-width:220px}
      .nav a{padding-left:8px;padding-right:8px;font-size:13px}
      .hero-inner{gap:45px}
      .download-board{gap:42px}
      .steps-layout{gap:35px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .navbar{min-height:68px}
      .logo{min-width:0;flex:1}
      .logo strong{font-size:14px}
      .nav-download{font-size:12px;padding:10px 12px}
      .menu-toggle{display:block}
      .nav{
        display:none;
        position:absolute;
        left:0;
        right:0;
        top:68px;
        background:var(--ink);
        padding:12px 17px 18px;
        border-top:1px solid #383b32;
        box-shadow:0 18px 30px rgba(0,0,0,.2);
      }
      .nav.open{display:grid}
      .nav a{padding:12px 13px}
      .breadcrumb{padding:12px 0;font-size:12px}
      .download-hero{padding:56px 0 66px}
      .hero-inner,.download-board,.faq-grid{grid-template-columns:1fr;gap:38px}
      .download-hero h1{font-size:clamp(34px,10vw,48px)}
      .app-preview{margin:0 auto;transform:none;max-width:460px}
      .qr-panel{min-height:0}
      .steps-layout{grid-template-columns:1fr;gap:25px}
      .steps-intro{border-right:0;border-bottom:1px solid var(--line);padding:0 0 22px}
      .info-strip,.cta-inner{display:block}
      .info-strip .btn-primary{margin-top:20px}
      .cta-actions{margin-top:24px}
      .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:520px){
      .hero-actions,.device-form,.cta-actions{display:grid;grid-template-columns:1fr}
      .hero-actions a,.device-form>* ,.cta-actions a{width:100%}
      .hero-note{gap:16px}
      .section{padding:65px 0}
      .section-heading{display:block;margin-bottom:25px}
      .section-heading p{margin-top:13px}
      .qr-panel{padding:25px}
      .qr-wrap{width:155px;height:155px}
      .qr-code{width:123px;height:123px}
      .benefit-list{grid-template-columns:1fr}
      .step{grid-template-columns:45px 1fr;gap:14px}
      .step-number{width:42px;height:42px}
      .info-strip{padding:24px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block}
      .copyright span{display:block;margin-bottom:7px}
    }

/* roulang page: category4 */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{background:var(--ink);color:#fff;position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
    .logo-text{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.3}
    .logo-text small{display:block;color:#aeb2a7;font-size:10px;font-weight:500;margin-top:2px}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{color:#c9ccc2;font-size:14px;padding:10px 13px;border-radius:9px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:#2a2d26;color:#fff}
    .nav-links a.active{color:var(--lime)}
    .nav-download,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;transition:.25s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .page-intro{background:var(--ink);color:#fff;padding:76px 0 82px;position:relative;overflow:hidden}
    .page-intro:before{content:"";position:absolute;width:430px;height:430px;border:1px solid rgba(200,241,105,.2);border-radius:50%;right:-100px;top:-210px}
    .page-intro:after{content:"";position:absolute;width:180px;height:180px;background:var(--coral);opacity:.12;transform:rotate(38deg);right:22%;bottom:-120px}
    .intro-content{position:relative;z-index:1;max-width:760px}
    .eyebrow,.section-kicker{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.14em}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:#aeb2a7;font-size:13px;margin-bottom:27px}
    .breadcrumb a:hover{color:var(--lime)}
    .page-intro h1{font-size:clamp(35px,5vw,62px);line-height:1.14;letter-spacing:-.045em;margin:16px 0 20px}
    .intro-copy{color:#c7cbc0;font-size:17px;max-width:680px;margin:0}
    .intro-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn-secondary{color:#fff;border:1px solid #555a4e;padding:11px 18px;border-radius:10px;font-weight:700;transition:.25s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .section{padding:88px 0}
    .section-light{background:var(--paper)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-heading h2{font-size:clamp(27px,3.5vw,42px);line-height:1.18;letter-spacing:-.03em;margin:8px 0 0}
    .section-heading p{color:var(--muted);max-width:410px;font-size:14px;margin:0}
    .service-layout{display:grid;grid-template-columns:245px 1fr;gap:34px}
    .service-nav{border-right:1px solid var(--line);padding-right:24px}
    .service-nav a{display:flex;align-items:center;justify-content:space-between;padding:15px 0;border-bottom:1px solid var(--line);font-weight:800;transition:.2s}
    .service-nav a span{color:var(--coral);font-size:13px}
    .service-nav a:hover,.service-nav a.active{color:#708d20;padding-left:7px}
    .service-nav a.active{color:var(--ink)}
    .service-detail{background:var(--ink);color:#fff;border-radius:var(--radius);padding:35px;min-height:310px;position:relative;overflow:hidden}
    .service-detail:after{content:"C7";position:absolute;right:-15px;bottom:-70px;color:var(--lime);font-size:220px;line-height:1;font-weight:900;opacity:.08}
    .service-detail h3{font-size:30px;line-height:1.25;margin:13px 0 14px;max-width:500px;position:relative;z-index:1}
    .service-detail p{color:#c7cbc0;max-width:580px;font-size:15px;position:relative;z-index:1}
    .service-link{display:inline-flex;margin-top:23px;color:var(--lime);font-weight:800;position:relative;z-index:1}
    .service-link:hover{color:#fff}
    .service-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px}
    .service-card{background:#eeece4;border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:.25s}
    .service-card:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow-sm)}
    .service-card .icon{width:38px;height:38px;border-radius:11px;background:var(--coral);display:grid;place-items:center;font-weight:900;margin-bottom:16px}
    .service-card:nth-child(2) .icon{background:var(--lime)}
    .service-card h3{font-size:18px;margin:0 0 7px}
    .service-card p{color:var(--muted);font-size:13px;margin:0 0 14px}
    .text-link{font-size:13px;font-weight:800;border-bottom:1px solid var(--ink);padding-bottom:2px}
    .text-link:hover{color:var(--coral);border-color:var(--coral)}
    .feature-strip{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:stretch}
    .feature-main{background:var(--coral);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;justify-content:space-between;min-height:285px}
    .feature-main h3{font-size:29px;line-height:1.3;max-width:430px;margin:14px 0}
    .feature-main p{font-size:14px;max-width:500px;margin:0}
    .feature-main a{font-weight:800;margin-top:24px}
    .feature-side{display:grid;gap:16px}
    .mini-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:23px;display:flex;gap:16px;align-items:flex-start;transition:.25s}
    .mini-card:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}
    .mini-num{color:var(--coral);font-size:18px;font-weight:900}
    .mini-card h3{font-size:17px;margin:0 0 5px}
    .mini-card p{color:var(--muted);font-size:13px;margin:0}
    .app-banner{background:var(--lime);border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .app-banner h2{font-size:32px;line-height:1.25;margin:8px 0 12px}
    .app-banner p{max-width:650px;margin:0;color:#3e4c29;font-size:14px}
    .app-actions{display:flex;gap:10px;flex-wrap:wrap}
    .app-actions .btn-primary{background:var(--ink);color:#fff}
    .app-actions .btn-primary:hover{background:#35392f}
    .btn-outline{border:1px solid var(--ink);padding:11px 18px;border-radius:10px;font-weight:800;transition:.25s}
    .btn-outline:hover{background:var(--ink);color:#fff}
    .faq-list{max-width:850px;margin:auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;background:transparent;text-align:left;padding:21px 4px;display:flex;justify-content:space-between;gap:20px;font-weight:800;color:var(--ink)}
    .faq-question span:last-child{color:var(--coral);font-size:22px;line-height:1}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 21px 4px}
    .faq-item.open{background:#eeece4;padding:0 16px;border-radius:12px;margin:8px 0;border:1px solid var(--line)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .footer{background:var(--ink);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
    .footer-brand .logo{min-width:0;margin-bottom:17px}
    .footer-brand p{color:#aeb2a7;font-size:13px;max-width:260px;margin:0}
    .footer h3{font-size:14px;margin:5px 0 14px}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#aeb2a7;font-size:13px;margin:8px 0;transition:.2s}
    .footer-grid>div:not(.footer-brand) a:hover{color:var(--lime);padding-left:4px}
    .copyright{border-top:1px solid #363a31;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#858b80;font-size:12px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){
      .navbar{gap:16px}.logo{min-width:235px}.nav-links a{padding:9px 8px;font-size:13px}
      .service-layout{grid-template-columns:205px 1fr}.feature-strip{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 34px))}
      .navbar{height:70px}.menu-toggle{display:block;order:3;margin-left:auto}
      .nav-download{font-size:13px;padding:10px 12px}.logo{min-width:0;flex:1}.logo-text{font-size:13px}
      .nav-links{display:none;position:absolute;left:0;right:0;top:70px;background:var(--ink);padding:12px 17px 18px;flex-direction:column;align-items:stretch;border-top:1px solid #363a31}
      .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
      .page-intro{padding:55px 0 62px}.page-intro h1{font-size:40px}
      .section{padding:65px 0}.section-heading{display:block}.section-heading p{margin-top:13px}
      .service-layout{grid-template-columns:1fr;gap:25px}.service-nav{border-right:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}
      .service-detail{padding:28px}.service-cards{grid-template-columns:1fr}
      .app-banner{grid-template-columns:1fr;padding:30px}.app-banner h2{font-size:27px}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}.footer-brand{grid-column:1/-1}
      .copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      .logo-mark{width:34px;height:34px;font-size:16px}.logo-text small{font-size:9px}
      .nav-download{padding:9px 10px;font-size:12px}.page-intro h1{font-size:34px}
      .intro-copy{font-size:15px}.intro-actions a{width:100%}
      .service-nav{grid-template-columns:1fr}.feature-main{padding:26px;min-height:250px}.feature-main h3{font-size:25px}
      .app-actions a{width:100%;text-align:center}.faq-question{font-size:14px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }

/* roulang page: category5 */
:root{
      --ink:#171915;
      --ink-soft:#242820;
      --lime:#c8f169;
      --lime-deep:#a9d44e;
      --coral:#f47d5b;
      --cream:#f5f2e9;
      --paper:#fffdf7;
      --muted:#77786e;
      --line:#dfded3;
      --line-dark:#383b32;
      --shadow:0 18px 50px rgba(23,25,21,.10);
      --shadow-sm:0 8px 24px rgba(23,25,21,.08);
      --radius:18px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:12px;min-width:270px}
    .logo-mark{width:38px;height:38px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:18px;border-radius:11px;transform:rotate(-5deg)}
    .logo-text{font-size:15px;font-weight:800;letter-spacing:.02em;line-height:1.3}
    .logo-text small{display:block;color:#aeb2a7;font-size:10px;font-weight:500;margin-top:2px}
    .nav{display:flex;align-items:center;gap:4px;flex:1}
    .nav a{color:#c9ccc2;font-size:14px;padding:10px 12px;border-radius:9px;transition:.25s}
    .nav a:hover,.nav a.active{background:#2a2d26;color:#fff}
    .nav a.active{color:var(--lime)}
    .nav-download,.btn-primary{background:var(--lime);color:var(--ink);font-weight:800;border-radius:10px;padding:12px 18px;transition:.25s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-download:hover,.btn-primary:hover{background:#ddff8b;transform:translateY(-2px);box-shadow:0 8px 22px rgba(200,241,105,.2)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .crumb-bar{background:var(--paper);border-bottom:1px solid var(--line)}
    .breadcrumbs{min-height:54px;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}
    .breadcrumbs a:hover{color:var(--ink)}
    .breadcrumbs strong{color:var(--ink);font-weight:700}
    .hero-guide{background:var(--ink);color:#fff;padding:76px 0 82px;position:relative;overflow:hidden}
    .hero-guide:before{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(200,241,105,.2);border-radius:50%;right:-150px;top:-280px}
    .hero-guide:after{content:"";position:absolute;width:180px;height:180px;background:var(--coral);opacity:.16;transform:rotate(35deg);right:17%;bottom:-100px}
    .hero-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--lime)}
    .hero-guide h1{font-size:clamp(36px,5vw, sixty);font-size:clamp(36px,5vw,60px);line-height:1.12;letter-spacing:-.045em;margin:18px 0 22px;max-width:680px}
    .hero-copy{color:#c7cbc0;font-size:17px;max-width:600px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn-secondary{color:#fff;border:1px solid #555a4e;padding:11px 18px;border-radius:10px;font-weight:700;transition:.25s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{border-color:var(--lime);color:var(--lime)}
    .guide-board{background:#2b3028;border:1px solid #44493e;border-radius:20px;padding:24px;box-shadow:var(--shadow)}
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #464b40;padding-bottom:17px;margin-bottom:18px}
    .board-top strong{font-size:17px}
    .board-status{font-size:11px;color:var(--lime);border:1px solid rgba(200,241,105,.35);padding:4px 8px;border-radius:6px}
    .board-step{display:flex;gap:15px;padding:15px 0;border-bottom:1px solid #41463c}
    .board-step:last-child{border-bottom:0}
    .board-num{width:30px;height:30px;border-radius:9px;background:var(--lime);color:var(--ink);display:grid;place-items:center;font-weight:900;font-size:13px;flex:none}
    .board-step b{display:block;color:#fff;font-size:14px;margin-bottom:3px}
    .board-step span{display:block;color:#aeb4a8;font-size:12px}
    .section{padding:88px 0}
    .section-light{background:var(--paper)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-heading h2{font-size:clamp(28px,3.5vw,42px);line-height:1.18;letter-spacing:-.03em;margin:9px 0 0}
    .section-heading p{color:var(--muted);max-width:420px;font-size:14px;margin:0}
    .route-strip{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:14px}
    .route-main{background:var(--coral);border-radius:var(--radius);padding:25px;min-height:166px;display:flex;flex-direction:column;justify-content:space-between}
    .route-main h3{font-size:24px;line-height:1.3;margin:0;max-width:260px}
    .route-main p{font-size:13px;margin:0}
    .route-main a{font-size:13px;font-weight:800}
    .route-item{background:#ebe8de;border:1px solid var(--line);border-radius:var(--radius);padding:23px;min-height:166px;transition:.25s}
    .route-item:hover{background:#fff;transform:translateY(-4px);box-shadow:var(--shadow-sm)}
    .route-item .icon{display:block;color:var(--coral);font-size:22px;font-weight:900;margin-bottom:12px}
    .route-item h3{font-size:17px;margin:0 0 7px}
    .route-item p{font-size:13px;color:var(--muted);margin:0 0 13px}
    .route-item a{font-size:13px;font-weight:800}
    .steps-section{background:#e8e6db}
    .steps-layout{display:grid;grid-template-columns:280px 1fr;gap:56px}
    .step-menu{border-right:1px solid #cccabe;padding-right:26px}
    .step-menu h3{font-size:18px;margin:0 0 22px}
    .step-menu a{display:flex;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid #d4d1c5;color:var(--muted);font-size:14px;transition:.2s}
    .step-menu a:hover,.step-menu a.active{color:var(--ink);font-weight:800}
    .step-menu a.active:before{content:"";width:7px;height:7px;background:var(--coral);border-radius:50%}
    .step-list{display:grid;gap:16px}
    .step-card{display:grid;grid-template-columns:66px 1fr auto;gap:22px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px 24px;transition:.25s}
    .step-card:hover{box-shadow:var(--shadow-sm);border-color:#c9c7ba}
    .step-index{font-size:36px;line-height:1;color:var(--coral);font-weight:900}
    .step-card h3{font-size:19px;margin:0 0 4px}
    .step-card p{color:var(--muted);font-size:14px;margin:0}
    .step-link{font-size:13px;font-weight:800;white-space:nowrap}
    .step-link:hover{color:var(--coral)}
    .download-panel{background:var(--lime);border-radius:var(--radius);padding:34px;display:grid;grid-template-columns:1fr 220px;gap:30px;align-items:center;position:relative;overflow:hidden}
    .download-panel:after{content:"C7APP";position:absolute;right:-26px;bottom:-36px;color:rgba(23,25,21,.08);font-size:100px;font-weight:900;letter-spacing:-.08em}
    .download-panel h2{font-size:clamp(27px,3vw,39px);line-height:1.2;margin:8px 0 12px;position:relative;z-index:1}
    .download-panel p{max-width:620px;margin:0 0 20px;color:#38432e;font-size:15px;position:relative;z-index:1}
    .download-info{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px;position:relative;z-index:1}
    .download-info span{border:1px solid rgba(23,25,21,.24);border-radius:8px;padding:6px 10px;color:#3e4935;font-size:12px}
    .download-panel .btn-primary{background:var(--ink);color:#fff;position:relative;z-index:1}
    .qr-box{width:170px;height:170px;background:#fff;border:10px solid #fff;border-radius:12px;display:grid;place-items:center;position:relative;z-index:1;box-shadow:var(--shadow-sm)}
    .qr-pattern{width:118px;height:118px;background:repeating-linear-gradient(45deg,#171915 0 5px,#fff 5px 10px);position:relative}
    .qr-pattern:before,.qr-pattern:after{content:"";position:absolute;width:28px;height:28px;border:6px solid #171915;background:#fff}
    .qr-pattern:before{left:0;top:0}.qr-pattern:after{right:0;bottom:0}
    .faq-section{background:var(--paper)}
    .faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
    .faq-intro h2{font-size:38px;line-height:1.2;margin:9px 0 16px}
    .faq-intro p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--line);border-radius:13px;background:#fff;padding:0 20px;transition:.25s}
    .faq-item[open]{border-color:var(--ink);box-shadow:var(--shadow-sm)}
    .faq-item summary{cursor:pointer;list-style:none;padding:18px 28px 18px 0;font-size:15px;font-weight:800;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:0;top:15px;font-size:22px;font-weight:400;color:var(--coral)}
    .faq-item[open] summary:after{content:"−";color:var(--ink)}
    .faq-answer{border-top:1px solid var(--line);padding:14px 0 17px;color:var(--muted);font-size:14px}
    .cta{background:var(--ink);color:#fff;padding:62px 0}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{font-size:clamp(27px,3vw,40px);line-height:1.2;margin:8px 0 10px}
    .cta p{color:#bfc4b8;margin:0;max-width:600px}
    .footer{background:#10110f;color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand .logo{min-width:0;margin-bottom:17px}
    .footer-brand p{color:#9ca198;font-size:13px;max-width:270px}
    .footer h3{font-size:14px;margin:8px 0 16px;color:#fff}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#9ca198;font-size:13px;margin:9px 0;transition:.2s}
    .footer-grid a:hover{color:var(--lime)}
    .copyright{border-top:1px solid #2b2e28;padding-top:18px;color:#777c72;font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media (max-width:1024px){
      .navbar{gap:15px}.logo{min-width:230px}.nav{gap:0}.nav a{padding:9px 8px;font-size:13px}
      .hero-layout{gap:38px}.route-strip{grid-template-columns:1fr 1fr}.route-main{grid-row:span 2}
      .steps-layout{gap:35px}.faq-grid{gap:35px}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .navbar{height:68px;justify-content:space-between}.logo{min-width:0}.logo-text{font-size:14px}
      .nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:12px 16px 18px;border-top:1px solid #30342c;flex-direction:column;align-items:stretch}
      .nav.open{display:flex}.nav a{padding:12px 14px}.nav-download{padding:9px 12px;font-size:13px}.menu-toggle{display:block}
      .hero-guide{padding:55px 0 62px}.hero-layout,.steps-layout,.faq-grid{grid-template-columns:1fr}.hero-layout{gap:38px}
      .step-menu{border-right:0;border-bottom:1px solid #cccabe;padding:0 0 12px;display:flex;gap:18px;overflow:auto}
      .step-menu h3{display:none}.step-menu a{white-space:nowrap;border-bottom:0;padding:8px 0}
      .step-card{grid-template-columns:50px 1fr}.step-link{grid-column:2}
      .download-panel{grid-template-columns:1fr}.qr-box{width:150px;height:150px}
      .cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:520px){
      .hero-guide h1{font-size:36px}.hero-copy{font-size:15px}.hero-actions a{width:100%}
      .breadcrumbs{font-size:12px;overflow:hidden;white-space:nowrap}.route-strip{grid-template-columns:1fr}.route-main{grid-row:auto}
      .section{padding:64px 0}.section-heading{display:block}.section-heading p{margin-top:14px}
      .download-panel{padding:25px}.download-panel h2{font-size:29px}.qr-box{margin:auto}
      .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}
    }

/* 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}