/* roulang page: index */
:root{
  --green:#123b32;
  --green-dark:#0c2923;
  --charcoal:#17211e;
  --lime:#c8f35a;
  --lime-soft:#e8f7b5;
  --coral:#ff7657;
  --cream:#f6f4ee;
  --white:#fff;
  --ink:#1b2824;
  --muted:#6d7972;
  --line:#dce2d8;
  --line-dark:rgba(255,255,255,.15);
  --shadow:0 16px 38px rgba(18,59,50,.09);
  --shadow-dark:0 18px 42px rgba(0,0,0,.24);
  --radius:18px;
  --radius-sm:11px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--cream);color:var(--ink);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer;border:0}
img{max-width:100%;display:block}
.container{width:min(var(--container),88%);margin:0 auto}
.site-header{background:var(--charcoal);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;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
.logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
.nav-links{display:flex;align-items:center;gap:5px;list-style:none}
.nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
.nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
.status-bar{height:34px;background:#102d27;border-top:1px solid rgba(255,255,255,.06);color:#aab8ad;font-size:12px}
.status-inner{height:100%;display:flex;align-items:center;gap:25px}
.status-item{display:flex;align-items:center;gap:7px}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--lime)}
.hero{background:var(--charcoal);color:#fff;overflow:hidden;position:relative;padding:86px 0 94px}
.hero:before{content:"";position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(200,243,90,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.12) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:70px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;margin-bottom:18px}
.eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
.hero h1{font-size:clamp(36px,4.2vw,62px);line-height:1.16;letter-spacing:-.055em;max-width:650px;margin-bottom:23px}
.hero-copy{color:#c4d0c7;max-width:650px;font-size:17px;line-height:1.9}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
.btn-primary{background:var(--lime);color:var(--green)}
.btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
.btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn-dark{background:var(--green);color:#fff}
.btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
.btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}
.btn-light-outline:hover{background:var(--green);color:#fff}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.preview-stage{position:relative;min-height:370px}
.preview-board{background:#213a32;border:1px solid rgba(200,243,90,.28);border-radius:26px;padding:16px;box-shadow:var(--shadow-dark);transform:rotate(2deg);position:relative;z-index:1}
.preview-top{height:38px;display:flex;align-items:center;justify-content:space-between;color:#dcead8;font-size:12px;border-bottom:1px solid var(--line-dark)}
.preview-lights{display:flex;gap:6px}.preview-lights i{width:8px;height:8px;border-radius:50%;background:var(--coral)}.preview-lights i:nth-child(2){background:var(--lime)}.preview-lights i:nth-child(3){background:#d9dfd3}
.screen{height:205px;margin:16px 0;background:#335b49;border-radius:15px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;position:relative}
.screen:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(200,243,90,.25);border-radius:50%;right:-40px;top:-60px;box-shadow:0 0 0 18px rgba(200,243,90,.06),0 0 0 36px rgba(200,243,90,.04)}
.screen-label{display:flex;justify-content:space-between;font-size:11px;color:#d7e5d4;position:relative;z-index:1}
.screen-title{font-size:25px;font-weight:800;letter-spacing:-.04em;position:relative;z-index:1}
.screen-sub{font-size:12px;color:#c7d9c2;position:relative;z-index:1}
.controls{display:flex;align-items:center;justify-content:space-between;gap:10px}
.control-set{display:flex;gap:8px}.control{width:34px;height:34px;border-radius:9px;background:#2a4c40;border:1px solid rgba(255,255,255,.12);display:grid;place-items:center;color:#c8f35a;font-weight:800}
.control-start{background:var(--lime);color:var(--green);padding:0 17px;border-radius:9px;height:34px;font-size:12px;font-weight:800}
.preview-note{position:absolute;right:-24px;bottom:10px;background:var(--lime);color:var(--green);padding:13px 16px;border-radius:13px;font-weight:800;font-size:13px;box-shadow:8px 8px 0 rgba(18,59,50,.3);z-index:2}
.pixel{position:absolute;width:64px;height:64px;left:-27px;top:20px;background:repeating-linear-gradient(0deg,transparent 0 15px,rgba(200,243,90,.3) 15px 16px),repeating-linear-gradient(90deg,transparent 0 15px,rgba(200,243,90,.3) 15px 16px);opacity:.8}
.section{padding:102px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-kicker{color:var(--coral);font-weight:800;font-size:13px;margin-bottom:8px}
.section h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em;color:var(--green)}
.section-lead{color:var(--muted);max-width:560px;font-size:15px}
.entry-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}
.entry-card{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:31px;min-height:245px;box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between;transition:.25s ease}
.entry-card:hover{transform:translateY(-4px);box-shadow:0 20px 45px rgba(18,59,50,.14)}
.entry-card.dark{background:var(--green);color:#fff;border-color:var(--green)}
.entry-card h3{font-size:27px;color:var(--green);letter-spacing:-.04em;margin:8px 0 9px}.entry-card.dark h3{color:#fff}
.entry-card p{color:var(--muted);font-size:14px;max-width:530px}.entry-card.dark p{color:#c6d4c8}
.card-top{display:flex;justify-content:space-between;gap:14px;align-items:start}
.badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--lime-soft);color:var(--green);font-size:11px;font-weight:800;white-space:nowrap}
.badge.coral{background:#ffe2da;color:#a9422d}.badge.dark{background:rgba(200,243,90,.14);color:var(--lime)}
.entry-link{color:var(--green);font-weight:800;font-size:14px;margin-top:20px}.dark .entry-link{color:var(--lime)}
.experience{background:#e9ede4}
.experience-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:75px;align-items:center}
.experience h2{max-width:400px}
.experience-copy{color:var(--muted);margin:17px 0 25px}
.path-list{list-style:none;border-left:2px solid #cbd7c7;padding-left:23px;display:grid;gap:15px}
.path-list li{position:relative;color:var(--green);font-weight:700}.path-list li:before{content:"";position:absolute;left:-31px;top:9px;width:14px;height:14px;border-radius:50%;background:var(--lime);border:3px solid #e9ede4}
.device-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow)}
.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);padding-bottom:14px}.tab{padding:8px 14px;border-radius:8px;background:transparent;color:var(--muted);font-size:13px}.tab.active{background:var(--green);color:var(--lime)}
.device-content{display:grid;grid-template-columns:1fr 160px;gap:25px;align-items:center;padding-top:26px}
.device-content h3{font-size:24px;color:var(--green);margin-bottom:8px}.device-content p{color:var(--muted);font-size:14px}
.device-frame{height:150px;border:8px solid #253b34;border-radius:14px;background:#dce8d4;display:grid;place-items:center;color:var(--green);font-size:12px;font-weight:800;position:relative}
.device-frame:before{content:"";position:absolute;inset:18px;border:1px dashed #aabb9e;border-radius:7px}
.category-strip{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 15px;scrollbar-width:thin}
.category-item{flex:0 0 185px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:.25s ease}
.category-item:hover{border-color:var(--green);transform:translateY(-3px)}
.category-item strong{display:block;color:var(--green);font-size:16px;margin:10px 0 5px}.category-item span{display:block;color:var(--muted);font-size:12px;line-height:1.6}.category-number{color:var(--coral);font-size:12px;font-weight:800}
.download-section{padding:78px 0;background:var(--cream)}
.download-panel{background:var(--charcoal);border-radius:24px;color:#fff;padding:42px 48px;display:grid;grid-template-columns:1fr 1.05fr;gap:50px;align-items:center;box-shadow:var(--shadow-dark)}
.download-panel h2{color:#fff}.download-panel p{color:#b9c7bc;margin:14px 0 22px;max-width:480px}
.device-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}.device-tag{padding:8px 12px;border:1px solid var(--line-dark);border-radius:8px;color:#d0ddd1;font-size:12px}.device-tag.active{color:var(--green);background:var(--lime);border-color:var(--lime)}
.download-side{display:grid;grid-template-columns:130px 1fr;gap:24px;align-items:center}
.qr-placeholder{width:130px;height:130px;border:8px solid #fff;background:repeating-linear-gradient(45deg,#17211e 0 5px,#fff 5px 10px);border-radius:5px;position:relative}
.qr-placeholder:after{content:"待配置";position:absolute;inset:28px 14px;background:rgba(255,255,255,.9);color:var(--green);display:grid;place-items:center;font-size:12px;font-weight:800}
.download-info{font-size:13px;color:#c7d4c9;display:grid;gap:8px}.download-info strong{color:var(--lime);font-size:15px}.download-info .btn{margin-top:7px;width:max-content}
.news-section{background:#fff}
.news-layout{display:grid;grid-template-columns:.65fr 1.35fr;gap:70px}
.news-labels{display:flex;gap:8px;flex-wrap:wrap;margin-top:23px}.news-labels span{padding:6px 10px;border-radius:7px;background:var(--cream);color:var(--muted);font-size:12px}
.news-list{display:grid;gap:0;border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:88px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s ease}
.news-item:hover{padding-left:8px}.news-meta{font-size:12px;color:var(--muted)}.news-meta b{display:block;color:var(--coral);margin-bottom:4px}
.news-item h3{font-size:16px;color:var(--green);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.news-item p{font-size:13px;color:var(--muted);line-height:1.6;margin-top:3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-arrow{font-size:22px;color:var(--green);transition:.2s}.news-item:hover .news-arrow{color:var(--coral);transform:translateX(4px)}
.empty-state{padding:45px 20px;text-align:center;border:1px dashed #bdcbbd;border-radius:14px;color:var(--muted);font-size:14px}.empty-icon{font-size:25px;color:var(--lime);display:block;margin-bottom:8px}
.faq-section{background:var(--cream)}
.faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px}
.faq-list{border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line);padding:0 4px}summary{list-style:none;cursor:pointer;padding:21px 36px 21px 0;color:var(--green);font-size:16px;font-weight:750;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:5px;font-size:23px;font-weight:400;color:var(--coral)}details[open] summary:after{content:"−";color:var(--green)}details[open] summary{color:var(--green)}details p{padding:0 35px 21px 0;color:var(--muted);font-size:14px;line-height:1.85}
.cta{background:var(--green);color:#fff;padding:70px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.cta h2{font-size:clamp(27px,3vw,40px);line-height:1.3;letter-spacing:-.04em}.cta p{color:#c5d4c8;margin-top:10px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
.site-footer{background:var(--charcoal);color:#fff;padding:54px 0 25px}.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}.footer-brand p{color:#9eafa4;font-size:13px;max-width:280px;margin-top:15px}.footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:14px}.footer-links{list-style:none;display:grid;gap:8px}.footer-links a{color:#aebcb2;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#85958b;font-size:12px}
@media(max-width:1024px){.nav-links a{padding:9px 8px;font-size:13px}.hero-grid{gap:35px}.section{padding:78px 0}.experience-grid{gap:40px}.footer-main{grid-template-columns:1.5fr 1fr 1fr}}
@media(max-width:768px){.navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--charcoal);padding:12px 6%;border-top:1px solid var(--line-dark);box-shadow:var(--shadow-dark)}.nav-links.open{display:grid}.nav-links a{padding:13px 14px}.status-bar{display:none}.hero{padding:64px 0 70px}.hero-grid,.entry-grid,.experience-grid,.news-layout,.faq-layout,.download-panel{grid-template-columns:1fr}.hero-grid{gap:45px}.preview-stage{min-height:315px}.preview-board{transform:none}.section-head{display:block}.section-lead{margin-top:13px}.device-content{grid-template-columns:1fr}.download-panel{padding:34px 27px;gap:30px}.news-layout,.faq-layout{gap:35px}.footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.cta-inner{display:block}.cta-actions{margin-top:25px}}
@media(max-width:520px){body{font-size:15px}.container{width:90%}.logo{font-size:15px}.logo-mark{width:27px;height:27px;font-size:14px}.hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.preview-stage{min-height:275px}.preview-board{padding:11px}.screen{height:160px;margin:10px 0}.screen-title{font-size:21px}.preview-note{right:-5px;bottom:0}.entry-card{padding:23px;min-height:220px}.entry-card h3{font-size:23px}.section{padding:65px 0}.device-content{padding-top:20px}.download-side{grid-template-columns:105px 1fr;gap:15px}.qr-placeholder{width:105px;height:105px}.news-item{grid-template-columns:66px 1fr auto;gap:10px;align-items:start}.news-item p{display:none}.news-item h3{font-size:14px}.footer-main{grid-template-columns:1fr 1fr;gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
      --green:#123b32;
      --green-dark:#0c2923;
      --charcoal:#17211e;
      --lime:#c8f35a;
      --lime-soft:#e8f7b5;
      --coral:#ff7657;
      --cream:#f6f4ee;
      --white:#fff;
      --ink:#1b2824;
      --muted:#6d7972;
      --line:#dce2d8;
      --line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);
      --shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *,*::before,*::after{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;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container),88%);margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:var(--charcoal);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;white-space:nowrap;font-size:19px;font-weight:800;letter-spacing:-.04em}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;margin:0;padding:0;list-style:none}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;width:44px;height:44px;border-radius:9px;background:transparent;color:#fff;font-size:25px}
    .status-bar{background:var(--green);color:#d9e5d8;border-bottom:1px solid rgba(255,255,255,.08)}
    .status-inner{display:flex;align-items:center;gap:25px;min-height:34px;font-size:12px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .article-hero{position:relative;overflow:hidden;padding:70px 0 78px;background:var(--charcoal);color:#fff}
    .article-hero:before{content:"";position:absolute;inset:0;opacity:.15;background-image:linear-gradient(rgba(200,243,90,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.14) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .article-hero-inner{position:relative;max-width:900px}
    .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:0 0 30px;color:#aabbb0;font-size:13px}
    .breadcrumb a:hover{color:var(--lime)}
    .breadcrumb-sep{color:var(--coral)}
    .article-label{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;margin-bottom:16px}
    .article-label:before{content:"";width:24px;height:2px;background:var(--lime)}
    .article-hero h1{max-width:880px;margin:0 0 22px;color:#fff;font-size:clamp(34px,5vw,58px);line-height:1.25;letter-spacing:-.055em}
    .article-summary{max-width:790px;margin:0;color:#c4d0c7;font-size:17px;line-height:1.9}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;color:#afbeb2;font-size:13px}
    .meta-pill{display:inline-flex;align-items:center;gap:7px}
    .meta-pill strong{color:var(--lime);font-weight:700}
    .article-layout{padding:82px 0 96px}
    .article-shell{display:grid;grid-template-columns:minmax(0,820px) 250px;gap:62px;align-items:start;justify-content:center}
    .article-content{min-width:0;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:48px 56px;box-shadow:var(--shadow)}
    .article-content>*:first-child{margin-top:0}
    .article-content h2{margin:42px 0 16px;color:var(--green);font-size:29px;line-height:1.35;letter-spacing:-.035em}
    .article-content h3{margin:30px 0 12px;color:var(--green);font-size:21px;line-height:1.45}
    .article-content p{margin:0 0 22px;color:#405049;line-height:1.95}
    .article-content ul,.article-content ol{margin:0 0 25px;padding-left:28px;color:#405049}
    .article-content li{margin:8px 0;padding-left:4px}
    .article-content blockquote{margin:30px 0;padding:20px 24px;border-left:4px solid var(--lime);border-radius:0 12px 12px 0;background:#f0f7dc;color:var(--green)}
    .article-content img{width:100%;margin:30px 0;border-radius:14px}
    .article-content a{color:var(--green);font-weight:700;text-decoration:underline;text-decoration-color:var(--lime)}
    .article-content table{width:100%;margin:28px 0;border-collapse:collapse;display:block;overflow-x:auto;white-space:nowrap}
    .article-content th,.article-content td{padding:12px 16px;border:1px solid var(--line);text-align:left}
    .article-content th{background:var(--green);color:#fff}
    .article-content hr{margin:38px 0;border:0;border-top:1px solid var(--line)}
    .article-aside{position:sticky;top:110px}
    .aside-card{padding:24px;border-radius:var(--radius);background:var(--green);color:#fff;box-shadow:var(--shadow-dark)}
    .aside-card h2{margin:0 0 15px;font-size:20px;color:#fff}
    .aside-card p{margin:0 0 21px;color:#c6d4c8;font-size:13px;line-height:1.8}
    .aside-link{display:flex;align-items:center;justify-content:space-between;min-height:44px;padding:9px 0;border-top:1px solid var(--line-dark);color:#e7efe6;font-size:13px}
    .aside-link:hover{color:var(--lime)}
    .aside-link span{color:var(--lime);font-size:18px}
    .share-box{margin-top:18px;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
    .share-box strong{display:block;margin-bottom:8px;color:var(--green);font-size:14px}
    .share-box p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}
    .article-bottom{max-width:820px;margin:30px auto 0}
    .return-panel{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:25px 28px;border-radius:var(--radius);background:var(--lime);color:var(--green)}
    .return-panel strong{font-size:18px}
    .return-panel span{display:block;color:#45633e;font-size:13px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .site-footer{padding:62px 0 22px;background:var(--charcoal);color:#d5dfd5}
    .footer-main{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:47px}
    .footer-brand .logo{color:#fff;margin-bottom:18px}
    .footer-brand p{max-width:300px;margin:0;color:#9eaea2;font-size:13px;line-height:1.8}
    .footer-title{margin-bottom:15px;color:var(--lime);font-size:13px;font-weight:800}
    .footer-links{display:grid;gap:8px;margin:0;padding:0;list-style:none}
    .footer-links a{color:#abb9ae;font-size:13px;transition:.2s ease}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line-dark);color:#89998d;font-size:12px}
    .empty-state{padding:55px 20px;text-align:center;border:1px dashed #b8c8b7;border-radius:14px;background:#f8faf4}
    .empty-state .empty-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:15px;background:var(--lime-soft);display:grid;place-items:center;color:var(--green);font-size:25px;font-weight:800}
    .empty-state h2{margin:0 0 8px;color:var(--green);font-size:25px}
    .empty-state p{margin:0 0 20px;color:var(--muted)}
    @media (max-width:1024px){
      .nav-links{gap:0}
      .nav-links a{padding:9px 8px;font-size:13px}
      .article-shell{grid-template-columns:minmax(0,1fr) 220px;gap:28px}
      .article-content{padding:40px}
    }
    @media (max-width:768px){
      .navbar{height:68px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:6%;right:6%;top:68px;flex-direction:column;align-items:stretch;padding:10px;background:var(--charcoal);border:1px solid var(--line-dark);border-radius:0 0 15px 15px;box-shadow:var(--shadow-dark)}
      .nav-links.is-open{display:flex}
      .nav-links a{padding:12px 14px}
      .status-inner{gap:14px;overflow:hidden;white-space:nowrap}
      .article-hero{padding:52px 0 58px}
      .article-hero h1{font-size:34px}
      .article-shell{display:block}
      .article-aside{position:static;margin-top:25px}
      .article-content{padding:30px 23px}
      .article-layout{padding:50px 0 65px}
      .article-bottom{margin-top:24px}
      .footer-main{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:6px}
    }
    @media (max-width:520px){
      .container{width:90%}
      .logo{font-size:16px}
      .logo-mark{width:29px;height:29px}
      .article-hero h1{font-size:29px}
      .article-summary{font-size:15px}
      .article-content{padding:25px 18px}
      .article-content h2{font-size:24px}
      .article-content h3{font-size:19px}
      .article-content p,.article-content li{font-size:16px}
      .return-panel{align-items:flex-start;flex-direction:column;padding:22px}
      .return-panel .btn{width:100%}
      .footer-main{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }

/* roulang page: category1 */
:root{
      --green:#123b32;
      --green-dark:#0c2923;
      --charcoal:#17211e;
      --lime:#c8f35a;
      --lime-soft:#e8f7b5;
      --coral:#ff7657;
      --cream:#f6f4ee;
      --white:#fff;
      --ink:#1b2824;
      --muted:#6d7972;
      --line:#dce2d8;
      --line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);
      --shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{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;font-size:16px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),88%);margin:0 auto}
    .site-header{background:var(--charcoal);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;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;list-style:none;margin:0;padding:0}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
    .status-bar{background:var(--green);color:#d5e0d4;border-bottom:1px solid rgba(255,255,255,.08)}
    .status-inner{min-height:34px;display:flex;align-items:center;gap:24px;font-size:12px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .hero-inner{background:var(--charcoal);color:#fff;position:relative;overflow:hidden}
    .hero-inner:before{content:"";position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(200,243,90,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.12) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 85%)}
    .guide-hero{padding:78px 0 82px}
    .hero-layout{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:800;margin-bottom:17px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,4.4vw,60px);line-height:1.18;letter-spacing:-.055em;margin-bottom:22px}
    .hero-copy{max-width:680px;color:#c4d0c7;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .guide-console{min-height:350px;border:1px solid rgba(200,243,90,.25);border-radius:24px;background:#20342e;box-shadow:var(--shadow-dark);padding:20px;transform:rotate(1.5deg)}
    .console-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.13);color:#cddbd0;font-size:12px}
    .console-light{display:inline-flex;align-items:center;gap:7px;color:var(--lime)}
    .console-light i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}
    .console-screen{margin:22px 0;background:#10251f;border-radius:15px;min-height:180px;padding:22px;position:relative;overflow:hidden}
    .console-screen:after{content:"";position:absolute;right:-20px;bottom:-35px;width:150px;height:150px;border:18px solid rgba(200,243,90,.12);border-radius:50%}
    .screen-label{font-size:12px;color:#aebdb2}
    .screen-title{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.04em;margin:8px 0 22px}
    .screen-bars{display:grid;gap:9px;max-width:70%}
    .screen-bars span{height:9px;border-radius:10px;background:#365047}
    .screen-bars span:nth-child(2){width:78%;background:var(--lime)}
    .screen-bars span:nth-child(3){width:54%}
    .console-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px}
    .console-button{width:45px;height:45px;border-radius:50%;background:var(--coral);color:#fff;font-weight:800}
    .console-hint{font-size:12px;color:#b9c9bd;line-height:1.6}
    .section{padding:96px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:36px}
    .section-kicker{color:var(--coral);font-weight:800;font-size:13px;margin-bottom:8px}
    h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em;color:var(--green);margin-bottom:0}
    .section-lead{color:var(--muted);max-width:570px;font-size:15px}
    .toc{display:flex;gap:10px;flex-wrap:wrap;padding:18px 20px;border:1px solid var(--line);background:#fff;border-radius:14px;margin-bottom:42px}
    .toc a{font-size:13px;color:var(--green);padding:7px 12px;border-radius:8px;background:#f0f4ec;transition:.2s}
    .toc a:hover{background:var(--lime);transform:translateY(-1px)}
    .route-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:68px;align-items:start}
    .path-list{list-style:none;border-left:2px solid #cbd7c7;padding:4px 0 4px 27px;margin:0;display:grid;gap:26px}
    .path-list li{position:relative}
    .path-list li:before{content:"";position:absolute;left:-36px;top:7px;width:15px;height:15px;border-radius:50%;background:var(--lime);border:3px solid #e9ede4}
    .step-num{font-size:12px;color:var(--coral);font-weight:800;letter-spacing:.08em}
    .path-list h3{font-size:20px;color:var(--green);margin:3px 0 5px}
    .path-list p{font-size:14px;color:var(--muted);margin-bottom:0}
    .interface-card{background:var(--green);color:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .interface-card:before{content:"";position:absolute;right:-42px;top:-42px;width:150px;height:150px;border:1px solid rgba(200,243,90,.3);border-radius:50%}
    .interface-head{display:flex;justify-content:space-between;align-items:center;position:relative;margin-bottom:22px}
    .interface-head h3{font-size:23px;margin:0;color:#fff}
    .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--lime-soft);color:var(--green);font-size:11px;font-weight:800;white-space:nowrap}
    .badge.coral{background:#ffe2da;color:#a9422d}
    .preview-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:12px;position:relative}
    .preview-block{border:1px solid rgba(255,255,255,.14);background:#1b4a3e;border-radius:13px;padding:17px;min-height:145px}
    .preview-block.tall{min-height:205px}
    .preview-block small{color:#b9d0be;font-size:11px}
    .preview-block strong{display:block;color:var(--lime);font-size:20px;margin:13px 0}
    .mini-lines{display:grid;gap:8px}
    .mini-lines span{height:8px;background:rgba(255,255,255,.2);border-radius:9px}
    .mini-lines span:nth-child(2){width:70%}
    .mini-lines span:nth-child(3){width:84%}
    .note-box{margin-top:14px;border-left:3px solid var(--lime);padding:12px 15px;background:rgba(255,255,255,.07);font-size:13px;color:#d1ded4}
    .dark-section{background:var(--charcoal);color:#fff}
    .dark-section h2{color:#fff}
    .dark-section .section-lead{color:#b8c8bc}
    .notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .notice-card{padding:28px;background:#20342e;border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);transition:.25s}
    .notice-card:hover{border-color:var(--lime);transform:translateY(-3px)}
    .notice-card h3{color:var(--lime);font-size:21px;margin:14px 0 8px}
    .notice-card p{color:#c3d0c6;font-size:14px;margin:0}
    .icon-box{width:42px;height:42px;border-radius:12px;background:var(--lime);color:var(--green);display:grid;place-items:center;font-weight:900}
    .faq-section{background:#fff}
    .faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:75px}
    .faq-list{border-top:1px solid var(--line)}
    details{border-bottom:1px solid var(--line);padding:19px 0}
    summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:18px;color:var(--green);font-weight:750}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:24px;line-height:1;color:var(--coral)}
    details[open] summary:after{content:"−";color:var(--green)}
    details[open]{border-left:3px solid var(--lime);padding-left:16px}
    details p{color:var(--muted);font-size:14px;margin:12px 0 2px}
    .cta{padding:68px 0;background:var(--green);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{color:#fff;font-size:34px;margin-bottom:10px}
    .cta p{color:#c7d7ca;max-width:600px;margin:0}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
    .site-footer{background:var(--charcoal);color:#fff;padding:62px 0 20px}
    .footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .footer-brand p{max-width:290px;color:#aebdb1;font-size:13px;margin:17px 0 0}
    .footer-title{font-size:13px;color:var(--lime);font-weight:800;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-links a{color:#bac7bd;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;gap:15px;color:#91a199;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:13px}
      .hero-layout{gap:38px}.route-layout,.faq-layout{gap:38px}
    }
    @media(max-width:768px){
      .navbar{height:70px}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:6%;right:6%;top:70px;padding:12px;background:var(--charcoal);border:1px solid rgba(255,255,255,.12);border-radius:0 0 14px 14px;box-shadow:var(--shadow-dark)}
      .nav-links.open{display:grid}.nav-links a{padding:13px 14px}
      .status-inner{overflow:hidden;white-space:nowrap}.status-item:nth-child(3){display:none}
      .guide-hero{padding:62px 0}.hero-layout,.route-layout,.faq-layout{grid-template-columns:1fr}
      .guide-console{max-width:600px;margin:0 auto;transform:none}
      .section{padding:72px 0}.section-head{display:block}.section-lead{margin-top:14px}
      .notice-grid{grid-template-columns:1fr}.cta-inner{display:block}.cta-actions{margin-top:25px}
      .footer-main{grid-template-columns:1.4fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .container{width:90%}h1{font-size:34px}.hero-copy{font-size:15px}
      .hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}
      .preview-grid{grid-template-columns:1fr}.preview-block.tall{min-height:150px}
      .interface-card{padding:20px}.toc{padding:14px}.toc a{flex:1 1 42%;text-align:center}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}
    }

/* roulang page: category2 */
:root{
    --green:#123b32;--green-dark:#0c2923;--charcoal:#17211e;--lime:#c8f35a;
    --lime-soft:#e8f7b5;--coral:#ff7657;--cream:#f6f4ee;--white:#fff;
    --ink:#1b2824;--muted:#6d7972;--line:#dce2d8;--line-dark:rgba(255,255,255,.15);
    --shadow:0 16px 38px rgba(18,59,50,.09);--shadow-dark:0 18px 42px rgba(0,0,0,.24);
    --radius:18px;--radius-sm:11px;--container:1200px;
  }
  *{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;font-size:16px;line-height:1.75}
  a{color:inherit;text-decoration:none} img{max-width:100%;display:block}
  button,input{font:inherit}button{cursor:pointer;border:0}
  .container{width:min(var(--container),88%);margin:0 auto}
  .site-header{background:var(--charcoal);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;justify-content:space-between;gap:28px}
  .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
  .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
  .nav-links{display:flex;align-items:center;gap:5px;list-style:none;margin:0;padding:0}
  .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
  .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
  .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
  .hero{background:var(--charcoal);color:#fff;position:relative;overflow:hidden;padding:76px 0 82px}
  .hero:before{content:"";position:absolute;inset:0;opacity:.15;background-image:linear-gradient(rgba(200,243,90,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.14) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 88%)}
  .hero-grid{position:relative;display:grid;grid-template-columns:1fr .85fr;gap:75px;align-items:center}
  .eyebrow,.section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.06em}
  .eyebrow{display:flex;align-items:center;gap:8px;color:var(--lime);margin-bottom:16px}
  .eyebrow:before{content:"";width:25px;height:2px;background:var(--lime)}
  h1,h2,h3,p{margin-top:0}.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.15;letter-spacing:-.055em;margin-bottom:22px;max-width:650px}
  .hero-copy{max-width:650px;color:#c4d0c7;font-size:17px;line-height:1.9}
  .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
  .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
  .btn-primary{background:var(--lime);color:var(--green)}.btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
  .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
  .btn-dark{background:var(--green);color:#fff}.btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
  .btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}.btn-light-outline:hover{background:var(--green);color:#fff}
  .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
  .hero-panel{min-height:310px;border:1px solid rgba(200,243,90,.25);border-radius:24px;background:#20332d;padding:25px;box-shadow:var(--shadow-dark);transform:rotate(2deg)}
  .panel-bar{display:flex;justify-content:space-between;color:#aabbb0;font-size:12px;border-bottom:1px solid var(--line-dark);padding-bottom:15px}
  .panel-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--lime);margin-right:7px}
  .trial-screen{margin-top:25px;min-height:150px;border-radius:14px;background:var(--green-dark);padding:22px;display:flex;align-items:center;justify-content:space-between;gap:18px}
  .screen-title{font-size:25px;line-height:1.3;font-weight:800;color:#fff}.screen-note{color:#aebeb3;font-size:13px;margin-top:8px}
  .dial{width:104px;height:104px;border:10px solid #48675b;border-left-color:var(--lime);border-radius:50%;display:grid;place-items:center;color:var(--lime);font-weight:800;font-size:13px}
  .panel-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:17px}.panel-tags span{font-size:11px;color:var(--lime);background:rgba(200,243,90,.1);padding:5px 9px;border-radius:6px}
  .section{padding:92px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px}
  .section h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em;color:var(--green);margin:7px 0}
  .section-lead{color:var(--muted);max-width:570px}
  .toc{display:flex;gap:9px;flex-wrap:wrap;padding:18px 20px;border:1px solid var(--line);background:#fff;border-radius:14px;margin-bottom:48px}
  .toc a{padding:8px 13px;border-radius:8px;color:var(--green);font-size:13px;font-weight:700;background:#f0f4eb;transition:.2s}.toc a:hover{background:var(--lime)}
  .filter-wrap{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:25px}.filter-label{font-size:13px;color:var(--muted);font-weight:700;margin-right:4px}
  .filter{background:#fff;border:1px solid var(--line);padding:9px 15px;border-radius:99px;color:var(--green);font-size:13px;transition:.2s}.filter:hover,.filter.active{background:var(--green);color:var(--lime);border-color:var(--green)}
  .trial-banner{display:grid;grid-template-columns:1.25fr .75fr;gap:30px;align-items:center;background:var(--green);color:#fff;border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow);margin-bottom:25px}
  .trial-banner h2{color:#fff;font-size:30px;margin:5px 0 10px}.trial-banner p{color:#c6d4c8;max-width:620px;margin-bottom:0}.banner-mark{justify-self:end;width:145px;height:145px;border-radius:50%;border:1px dashed rgba(200,243,90,.55);display:grid;place-items:center;color:var(--lime);font-size:38px;font-weight:900;position:relative}.banner-mark:after{content:"试玩";position:absolute;font-size:12px;bottom:24px;color:#d7e8c9}
  .trial-list{display:grid;grid-template-columns:1.15fr .85fr;gap:15px}
  .trial-row{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px 24px;display:grid;grid-template-columns:45px 1fr auto;gap:16px;align-items:center;transition:.25s}.trial-row:hover{transform:translateX(4px);border-color:#a9c48d;box-shadow:var(--shadow)}
  .row-number{width:36px;height:36px;border-radius:10px;background:var(--lime-soft);display:grid;place-items:center;color:var(--green);font-weight:900}
  .trial-row h3{font-size:18px;color:var(--green);margin:0 0 4px}.trial-row p{font-size:13px;color:var(--muted);margin:0}.row-arrow{color:var(--green);font-size:20px}
  .dark-section{background:var(--charcoal);color:#fff}.dark-section h2{color:#fff}.dark-section .section-lead{color:#bdc9c0}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);overflow:hidden}
  .step{padding:28px 24px;background:var(--charcoal);min-height:180px}.step-no{font-size:12px;color:var(--lime);font-weight:900}.step h3{font-size:18px;margin:28px 0 8px;color:#fff}.step p{font-size:13px;color:#afbeb2;margin:0}
  .faq-area{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px}.faq-note{color:var(--muted);font-size:14px}.faq-list{border-top:1px solid var(--line)}
  details{border-bottom:1px solid var(--line);padding:20px 0}summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;color:var(--green);font-weight:800}summary::-webkit-details-marker{display:none}summary:after{content:"+";font-size:24px;font-weight:400;color:var(--coral)}details[open] summary:after{content:"−";color:var(--green)}details p{color:var(--muted);font-size:14px;margin:13px 30px 0 0}
  .cta{padding:70px 0;background:var(--green);color:#fff}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}.cta h2{font-size:34px;line-height:1.3;margin:0 0 10px}.cta p{color:#c6d4c8;margin:0}
  .site-footer{background:var(--charcoal);color:#d4dfd5;padding:58px 0 22px}.footer-main{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:35px;padding-bottom:45px}.footer-brand p{font-size:13px;color:#9dac9f;max-width:280px;margin-top:16px}.footer-title{color:var(--lime);font-weight:800;font-size:13px;margin-bottom:14px}.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-links a{font-size:13px;color:#aebdb1;transition:.2s}.footer-links a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid var(--line-dark);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#84948a;font-size:12px}
  @media(max-width:1024px){.nav-links a{padding:9px 8px;font-size:13px}.hero-grid{gap:40px}.steps{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:768px){.navbar{height:70px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:70px;left:6%;right:6%;padding:12px;background:var(--charcoal);border:1px solid var(--line-dark);border-radius:14px;box-shadow:var(--shadow-dark);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 15px}.hero{padding:60px 0 64px}.hero-grid,.trial-banner,.trial-list,.faq-area{grid-template-columns:1fr}.hero-panel{transform:none;max-width:560px}.banner-mark{justify-self:start}.section{padding:70px 0}.section-head{display:block}.section-lead{margin-top:12px}.cta-inner{display:block}.cta .hero-actions{margin-top:25px}.footer-main{grid-template-columns:1.5fr 1fr 1fr}.footer-main>div:last-child{grid-column:2}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
  @media(max-width:520px){.container{width:90%}.logo{font-size:16px}.logo-mark{width:28px;height:28px}.hero h1{font-size:35px}.hero-copy{font-size:15px}.hero-actions .btn,.cta .btn{width:100%}.trial-banner{padding:27px 23px}.trial-banner h2{font-size:26px}.trial-row{grid-template-columns:36px 1fr auto;padding:18px 15px}.trial-row h3{font-size:16px}.trial-row p{font-size:12px}.steps{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-main>div:first-child{grid-column:1/-1}.footer-main>div:last-child{grid-column:auto}}

/* roulang page: category3 */
:root{
      --green:#123b32;
      --green-dark:#0c2923;
      --charcoal:#17211e;
      --lime:#c8f35a;
      --lime-soft:#e8f7b5;
      --coral:#ff7657;
      --cream:#f6f4ee;
      --white:#fff;
      --ink:#1b2824;
      --muted:#6d7972;
      --line:#dce2d8;
      --line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);
      --shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{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;font-size:16px;line-height:1.78}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),88%);margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:var(--charcoal);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;color:#fff;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;list-style:none;padding:0;margin:0}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;background:transparent;color:#fff;width:44px;height:44px;border-radius:9px;font-size:25px}
    .status-bar{background:var(--green);color:#d7e2d7;font-size:12px}
    .status-inner{height:34px;display:flex;align-items:center;gap:25px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:6px;height:6px;border-radius:50%;background:var(--lime)}
    .page-hero{position:relative;overflow:hidden;background:var(--charcoal);color:#fff;padding:76px 0 84px}
    .page-hero:after{content:"";position:absolute;right:-80px;top:35px;width:360px;height:260px;opacity:.18;background:repeating-linear-gradient(90deg,var(--lime) 0 2px,transparent 2px 28px),repeating-linear-gradient(0deg,var(--lime) 0 2px,transparent 2px 28px);mask-image:linear-gradient(135deg,transparent 10%,#000 80%);transform:rotate(8deg)}
    .hero-content{position:relative;z-index:1;max-width:820px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:9px;color:var(--coral);font-size:13px;font-weight:800;margin-bottom:15px}
    .eyebrow:before,.section-kicker:before{content:"";width:24px;height:2px;background:currentColor}
    .page-hero h1{max-width:780px;margin:0 0 20px;font-size:clamp(34px,5vw,60px);line-height:1.18;letter-spacing:-.055em}
    .hero-copy{max-width:740px;margin:0;color:#c5d1c8;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-size:14px;font-weight:750;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#dafa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}
    .btn-light-outline:hover{background:var(--green);color:#fff}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .section{padding:94px 0}
    .section-light{background:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
    .section h2{margin:0;color:var(--green);font-size:clamp(28px,3.3vw,42px);line-height:1.25;letter-spacing:-.045em}
    .section-lead{max-width:570px;margin:0;color:var(--muted);font-size:15px}
    .guide-layout{display:grid;grid-template-columns:270px 1fr;gap:56px;align-items:start}
    .toc{position:sticky;top:120px;border-left:2px solid var(--line);padding-left:20px}
    .toc-title{margin-bottom:12px;color:var(--green);font-size:13px;font-weight:800}
    .toc a{display:block;padding:9px 0;color:var(--muted);font-size:14px;border-bottom:1px solid transparent;transition:.2s}
    .toc a:hover{color:var(--green);padding-left:5px}
    .toc a.active{color:var(--green);font-weight:800}
    .index-rail{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 33px}
    .index-rail a{padding:10px 15px;border:1px solid var(--line);border-radius:99px;background:var(--cream);color:var(--green);font-size:13px;font-weight:700;transition:.2s}
    .index-rail a:hover,.index-rail a.active{background:var(--green);border-color:var(--green);color:var(--lime)}
    .guide-panel{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;margin-bottom:23px}
    .guide-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:29px;box-shadow:var(--shadow)}
    .guide-card.dark{background:var(--green);color:#fff;border-color:var(--green)}
    .guide-card h3{margin:0 0 12px;color:var(--green);font-size:24px;letter-spacing:-.035em}
    .guide-card.dark h3{color:#fff}
    .guide-card p{margin:0;color:var(--muted);font-size:14px}
    .guide-card.dark p{color:#c9d8ca}
    .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--lime-soft);color:var(--green);font-size:11px;font-weight:800}
    .badge.coral{background:#ffe2da;color:#a9422d}
    .feature-list{display:grid;gap:0;margin:20px 0 0;padding:0;list-style:none}
    .feature-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line)}
    .feature-list li:before{content:"✓";flex:0 0 21px;width:21px;height:21px;border-radius:50%;display:grid;place-items:center;background:var(--lime);color:var(--green);font-size:12px;font-weight:900;margin-top:3px}
    .feature-list strong{display:block;color:var(--green);font-size:14px}
    .feature-list span{display:block;color:var(--muted);font-size:13px}
    .class-index{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .class-item{display:flex;align-items:flex-start;gap:15px;padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--cream);transition:.25s ease}
    .class-item:hover{background:#fff;border-color:var(--green);transform:translateY(-3px);box-shadow:var(--shadow)}
    .class-number{flex:0 0 35px;height:35px;border-radius:10px;background:var(--green);color:var(--lime);display:grid;place-items:center;font-size:13px;font-weight:800}
    .class-item h3{margin:0 0 5px;color:var(--green);font-size:17px}
    .class-item p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .note{margin-top:24px;padding:18px 20px;border-left:4px solid var(--lime);background:var(--lime-soft);border-radius:0 12px 12px 0;color:var(--green);font-size:14px}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .process-step{position:relative;padding:24px 20px;background:var(--cream);border-radius:15px;border:1px solid var(--line)}
    .process-step small{display:block;color:var(--coral);font-weight:800;font-size:12px;margin-bottom:14px}
    .process-step h3{margin:0 0 7px;color:var(--green);font-size:17px}
    .process-step p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .device-strip{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 32px;border-radius:var(--radius);background:var(--charcoal);color:#fff}
    .device-strip h3{margin:0 0 6px;font-size:23px}
    .device-strip p{margin:0;color:#bfcbc1;font-size:14px}
    .device-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}
    .device-tag{padding:7px 11px;border:1px solid var(--line-dark);border-radius:8px;color:#d0ddd1;font-size:12px}
    .device-tag.active{color:var(--green);background:var(--lime);border-color:var(--lime)}
    .faq-section{background:var(--cream)}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
    .faq-item summary{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 22px;color:var(--green);font-weight:750;list-style:none;cursor:pointer}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:var(--coral);font-size:22px;font-weight:400}
    .faq-item[open] summary{border-bottom:1px solid var(--line)}
    .faq-item[open] summary:after{content:"−";color:var(--green)}
    .faq-answer{padding:15px 22px 20px;color:var(--muted);font-size:14px}
    .cta{padding:68px 0;background:var(--green);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
    .cta h2{margin:0 0 9px;font-size:clamp(27px,3.4vw,42px);line-height:1.25;letter-spacing:-.045em}
    .cta p{margin:0;color:#c8d6cb;max-width:660px}
    .cta-actions{display:flex;flex-wrap:wrap;gap:10px;flex:0 0 auto}
    .site-footer{padding:62px 0 24px;background:var(--charcoal);color:#fff}
    .footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}
    .footer-brand .logo{margin-bottom:17px}
    .footer-brand p{max-width:310px;margin:0;color:#aebdb2;font-size:13px}
    .footer-title{margin-bottom:15px;color:var(--lime);font-size:13px;font-weight:800}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-links a{color:#b7c5ba;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 var(--line-dark);color:#93a49a;font-size:12px}
    @media(max-width:1024px){
      .nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:13px}
      .guide-layout{grid-template-columns:220px 1fr;gap:32px}
      .process{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .navbar{height:70px}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:6%;right:6%;top:70px;padding:12px;background:var(--charcoal);border:1px solid rgba(255,255,255,.12);border-radius:0 0 15px 15px;box-shadow:var(--shadow-dark)}
      .nav-links.open{display:grid}.nav-links a{padding:13px 15px}
      .status-inner{overflow:hidden;white-space:nowrap}.status-item:nth-child(3){display:none}
      .page-hero{padding:62px 0 68px}.page-hero h1{font-size:39px}
      .section{padding:70px 0}.section-head{display:block}.section-lead{margin-top:14px}
      .guide-layout,.faq-layout{grid-template-columns:1fr;gap:35px}.toc{position:static}
      .guide-panel{grid-template-columns:1fr}.class-index{grid-template-columns:1fr}
      .device-strip,.cta-inner{display:block}.device-strip .btn,.cta-actions{margin-top:23px}
      .footer-main{grid-template-columns:1.4fr 1fr;gap:30px}
    }
    @media(max-width:520px){
      .container{width:90%}.logo{font-size:16px}.logo-mark{width:29px;height:29px}
      .page-hero h1{font-size:32px}.hero-copy{font-size:15px}
      .hero-actions,.cta-actions{display:grid}.hero-actions .btn,.cta-actions .btn{width:100%}
      .section{padding:58px 0}.guide-card{padding:23px}.process{grid-template-columns:1fr}
      .device-strip{padding:24px 21px}.footer-main{grid-template-columns:1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
    }

/* roulang page: category4 */
:root{
      --green:#123b32;
      --green-dark:#0c2923;
      --charcoal:#17211e;
      --lime:#c8f35a;
      --lime-soft:#e8f7b5;
      --coral:#ff7657;
      --cream:#f6f4ee;
      --white:#fff;
      --ink:#1b2824;
      --muted:#6d7972;
      --line:#dce2d8;
      --line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);
      --shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{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;font-size:16px;line-height:1.75}
    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),88%);margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:var(--charcoal);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;list-style:none;margin:0;padding:0}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
    .status-bar{background:var(--green);color:#d4e0d5;border-bottom:1px solid rgba(255,255,255,.08)}
    .status-inner{height:36px;display:flex;align-items:center;gap:24px;font-size:12px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}
    .btn-light-outline:hover{background:var(--green);color:#fff}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .hero{position:relative;overflow:hidden;padding:76px 0 82px;background:var(--charcoal);color:#fff}
    .hero:before{content:"";position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(200,243,90,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.12) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;align-items:center;gap:68px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;margin-bottom:17px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
    .hero h1{max-width:680px;margin:0 0 22px;font-size:clamp(36px,4.2vw,60px);line-height:1.18;letter-spacing:-.055em}
    .hero-copy{max-width:650px;color:#c4d0c7;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;margin-top:25px;color:#aebdb2;font-size:12px}
    .hero-note span{display:inline-flex;align-items:center;gap:7px}
    .hero-note b{color:var(--lime);font-size:16px}
    .device-art{position:relative;min-height:350px;padding:24px}
    .device-frame{position:relative;width:min(285px,80%);height:365px;margin:0 auto;border:8px solid #27352f;border-radius:34px;background:#edf2df;box-shadow:var(--shadow-dark);transform:rotate(3deg)}
    .device-notch{width:86px;height:17px;margin:0 auto;background:#27352f;border-radius:0 0 12px 12px}
    .device-screen{margin:23px 16px;background:var(--green);border-radius:14px;padding:18px;color:#fff;height:276px}
    .screen-line{height:9px;width:62%;background:var(--lime);border-radius:8px;margin-bottom:15px}
    .screen-line.short{width:36%;background:#8ca69a}
    .screen-panel{height:102px;margin-top:22px;border:1px solid rgba(200,243,90,.35);border-radius:12px;padding:14px;background:rgba(0,0,0,.12)}
    .screen-circles{display:flex;gap:8px;margin-top:20px}
    .screen-circles i{display:block;width:28px;height:28px;border-radius:50%;background:var(--lime)}
    .screen-circles i:nth-child(2){background:var(--coral)}
    .screen-circles i:nth-child(3){background:#88a99a}
    .art-label{position:absolute;right:5%;top:16%;padding:12px 15px;border-radius:12px;background:var(--lime);color:var(--green);font-size:12px;font-weight:800;box-shadow:6px 6px 0 rgba(200,243,90,.14)}
    .art-label.bottom{right:auto;left:2%;top:auto;bottom:12%;background:#fff;color:var(--green);box-shadow:var(--shadow)}
    .section{padding:96px 0}
    .section.alt{background:#fff}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-weight:800;font-size:13px;margin-bottom:7px}
    .section h2{margin:0;color:var(--green);font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em}
    .section-lead{max-width:570px;margin:0;color:var(--muted);font-size:15px}
    .anchor-nav{display:flex;gap:9px;flex-wrap:wrap;padding:15px;border:1px solid var(--line);background:#fff;border-radius:14px;margin-bottom:45px}
    .anchor-nav a{padding:9px 14px;border-radius:9px;color:var(--green);font-size:13px;font-weight:700;transition:.2s}
    .anchor-nav a:hover,.anchor-nav a.active{background:var(--lime);color:var(--green)}
    .download-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;padding:42px;border-radius:var(--radius);background:var(--green);color:#fff;box-shadow:var(--shadow-dark)}
    .download-panel h2,.download-panel h3{color:#fff}
    .download-panel p{color:#c5d3c7}
    .device-tags{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}
    .device-tag{padding:9px 14px;border:1px solid var(--line-dark);border-radius:8px;color:#d0ddd1;background:transparent;font-size:12px;transition:.2s}
    .device-tag:hover,.device-tag.active{color:var(--green);background:var(--lime);border-color:var(--lime)}
    .download-options{display:grid;grid-template-columns:1fr 180px;gap:20px;align-items:stretch}
    .download-box{padding:23px;border:1px solid rgba(255,255,255,.16);background:rgba(0,0,0,.13);border-radius:14px}
    .download-box h3{font-size:21px;margin:0 0 8px}
    .download-box p{font-size:13px;margin:0 0 18px}
    .qr-box{min-height:180px;border:1px dashed rgba(200,243,90,.55);border-radius:12px;display:grid;place-items:center;text-align:center;color:#c8f35a;font-size:12px;padding:15px}
    .qr-inner{width:82px;height:82px;border:5px dotted var(--lime);border-radius:8px;margin-bottom:9px}
    .mini-status{font-size:12px;color:#aebdb2;margin-top:14px}
    .mini-status:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--coral);margin-right:7px}
    .steps-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:70px;align-items:start}
    .path-list{list-style:none;border-left:2px solid #cbd7c7;padding:5px 0 5px 25px;margin:0;display:grid;gap:25px}
    .path-list li{position:relative;color:var(--green)}
    .path-list li:before{content:"";position:absolute;left:-33px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--lime);border:3px solid #e9ede4}
    .path-list strong{display:block;font-size:17px;margin-bottom:4px}
    .path-list span{display:block;color:var(--muted);font-size:14px}
    .screen-board{padding:27px;border-radius:var(--radius);background:#eef0e8;border:1px solid var(--line);min-height:305px}
    .board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;color:var(--green);font-weight:800}
    .board-dots{display:flex;gap:6px}.board-dots i{width:9px;height:9px;border-radius:50%;background:var(--coral)}.board-dots i:nth-child(2){background:var(--lime)}.board-dots i:nth-child(3){background:#93a99b}
    .board-content{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    .board-card{height:110px;padding:17px;border-radius:13px;background:#fff;border:1px solid var(--line)}
    .board-card.dark{background:var(--green);color:#fff}
    .board-card b{display:block;font-size:15px;margin-bottom:12px}.board-card span{font-size:12px;color:var(--muted)}.board-card.dark span{color:#c5d3c7}
    .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .info-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
    .info-card.large{background:var(--lime-soft);border-color:transparent}
    .info-card h3{color:var(--green);font-size:21px;margin:0 0 12px}.info-card p{color:var(--muted);font-size:14px;margin:0}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
    .faq-list{display:grid;gap:10px}
    details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 20px;transition:.2s}
    details[open]{border-color:var(--lime);box-shadow:0 8px 22px rgba(18,59,50,.06)}
    summary{list-style:none;cursor:pointer;padding:19px 25px 19px 0;color:var(--green);font-weight:750;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;top:16px;color:var(--coral);font-size:22px;font-weight:400}
    details[open] summary:after{content:"−";color:var(--green)}
    details p{margin:0;padding:0 0 19px;color:var(--muted);font-size:14px}
    .cta{padding:65px 0;background:var(--green);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:28px}
    .cta h2{margin:0 0 8px;color:#fff;font-size:clamp(27px,3vw,40px);letter-spacing:-.04em}.cta p{margin:0;color:#c5d3c7;font-size:14px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{padding:58px 0 24px;background:var(--charcoal);color:#fff}
    .footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand p{max-width:300px;color:#aebdb2;font-size:13px;margin:18px 0 0}
    .footer-title{font-weight:800;font-size:14px;margin-bottom:15px;color:var(--lime)}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-links a{color:#b7c4ba;font-size:13px;transition:.2s}.footer-links a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line-dark);color:#87968b;font-size:12px}
    @media(max-width:1024px){.nav-links a{padding:9px 8px;font-size:13px}.hero-grid{gap:35px}.download-panel{gap:25px}.steps-layout,.faq-layout{gap:40px}}
    @media(max-width:768px){
      .navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:6%;right:6%;top:69px;padding:12px;background:var(--charcoal);border:1px solid var(--line-dark);border-radius:12px;box-shadow:var(--shadow-dark);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}
      .status-inner{height:auto;min-height:34px;gap:13px;overflow:hidden;white-space:nowrap}.status-item:nth-child(3){display:none}
      .hero{padding:60px 0 65px}.hero-grid,.download-panel,.steps-layout,.faq-layout{grid-template-columns:1fr}.device-art{min-height:330px;order:2}.hero h1{font-size:39px}.section{padding:70px 0}.section-head{display:block}.section-lead{margin-top:14px}.download-options{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr}.cta-inner{display:block}.cta-actions{margin-top:23px}
    }
    @media(max-width:520px){
      .container{width:90%}.logo{font-size:16px}.logo-mark{width:28px;height:28px}.hero h1{font-size:33px}.hero-copy{font-size:15px}.hero-actions,.hero-actions .btn,.cta-actions .btn{width:100%}.hero-actions .btn,.cta-actions .btn{display:flex}.device-frame{height:330px}.device-screen{height:242px}.anchor-nav{gap:5px}.anchor-nav a{font-size:12px;padding:8px 10px}.download-panel{padding:25px 20px}.info-grid,.board-content{grid-template-columns:1fr}.footer-main{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}
    }

/* roulang page: category6 */
:root{
      --green:#123b32;--green-dark:#0c2923;--charcoal:#17211e;
      --lime:#c8f35a;--lime-soft:#e8f7b5;--coral:#ff7657;
      --cream:#f6f4ee;--white:#fff;--ink:#1b2824;--muted:#6d7972;
      --line:#dce2d8;--line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);--shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;--radius-sm:11px;--container:1200px;
    }
    *{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;font-size:16px;line-height:1.8}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer;border:0}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),88%);margin:0 auto}
    .site-header{background:var(--charcoal);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;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;list-style:none;margin:0;padding:0}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;transition:.25s ease;border:1px solid transparent}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}
    .btn-light-outline:hover{background:var(--green);color:#fff}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .status-bar{background:var(--green);color:#d8e3d8;font-size:12px}
    .status-inner{display:flex;gap:26px;align-items:center;height:34px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .page-hero{background:var(--charcoal);color:#fff;padding:74px 0 78px;position:relative;overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:300px;height:300px;border:1px solid rgba(200,243,90,.2);right:8%;top:-130px;border-radius:50%;box-shadow:0 0 0 28px rgba(200,243,90,.04),0 0 0 58px rgba(200,243,90,.03)}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-size:13px;font-weight:700;margin-bottom:16px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
    .page-hero h1{font-size:clamp(34px,4.5vw,58px);line-height:1.2;letter-spacing:-.055em;margin:0 0 20px;max-width:700px}
    .hero-copy{color:#c4d0c7;max-width:690px;font-size:17px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .device-board{background:#20352e;border:1px solid rgba(200,243,90,.2);border-radius:22px;padding:24px;box-shadow:var(--shadow-dark);transform:rotate(2deg)}
    .board-top{display:flex;justify-content:space-between;color:#d5e2d5;font-size:13px;border-bottom:1px solid var(--line-dark);padding-bottom:15px}
    .board-display{margin:22px 0;background:#10251f;border-radius:14px;padding:24px 18px;min-height:150px}
    .display-line{height:10px;background:var(--lime);border-radius:8px;width:68%;margin-bottom:14px}
    .display-line.short{width:42%;background:#75947b}
    .display-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:24px}
    .display-grid span{height:31px;border:1px solid rgba(200,243,90,.25);border-radius:7px}
    .board-bottom{display:flex;justify-content:space-between;align-items:center;color:#c3d4c4;font-size:12px}
    .board-status{color:var(--lime);font-weight:700}
    .section{padding:96px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-kicker{color:var(--coral);font-weight:800;font-size:13px;margin-bottom:7px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em;color:var(--green);margin:0}
    .section-lead{color:var(--muted);max-width:590px;font-size:15px}
    .anchor-nav{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 38px;padding:0;list-style:none}
    .anchor-nav a{padding:9px 14px;border:1px solid var(--line);border-radius:99px;color:var(--green);background:#fff;font-size:13px;transition:.2s}
    .anchor-nav a:hover{background:var(--lime);border-color:var(--lime)}
    .device-layout{display:grid;grid-template-columns:.74fr 1.26fr;gap:22px;align-items:start}
    .device-menu{background:var(--green);color:#fff;border-radius:var(--radius);padding:26px;position:sticky;top:112px}
    .device-menu h3{margin:0 0 18px;font-size:21px}
    .device-menu a{display:flex;justify-content:space-between;gap:15px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.15);color:#d5e2d6;font-size:14px}
    .device-menu a:last-child{border-bottom:0}
    .device-menu a:hover{color:var(--lime)}
    .device-menu em{font-style:normal;color:var(--lime)}
    .faq-content{display:grid;gap:14px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:15px;padding:0 24px;transition:.2s}
    .faq-item[open]{border-color:var(--lime);box-shadow:var(--shadow)}
    .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;color:var(--green);font-size:17px;font-weight:750}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:25px;font-weight:400;color:var(--green)}
    .faq-item[open] summary:after{content:"−";color:var(--coral)}
    .faq-answer{color:var(--muted);font-size:14px;padding:0 30px 21px 0;max-width:780px}
    .tips{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:32px}
    .tip{background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px;min-height:155px}
    .tip-number{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--lime);color:var(--green);font-weight:900;margin-bottom:15px}
    .tip h3{color:var(--green);font-size:17px;margin:0 0 7px}
    .tip p{color:var(--muted);font-size:14px;margin:0}
    .notice{margin-top:30px;padding:22px 25px;border-left:4px solid var(--coral);background:#fff1ec;border-radius:0 14px 14px 0;color:#61483f;font-size:14px}
    .cta{background:var(--green);color:#fff;padding:68px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:clamp(26px,3vw,38px);margin:0 0 10px;letter-spacing:-.04em}
    .cta p{color:#c6d4c8;margin:0;max-width:650px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
    .site-footer{background:var(--charcoal);color:#d7e1d8;padding:60px 0 24px}
    .footer-main{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:35px;padding-bottom:42px}
    .footer-brand .logo{color:#fff;margin-bottom:15px}
    .footer-brand p{color:#9eafa3;font-size:13px;max-width:280px;margin:0}
    .footer-title{color:var(--lime);font-size:13px;font-weight:800;margin-bottom:14px}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-links a{color:#aebdb2;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid var(--line-dark);padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#8d9d92;font-size:12px}
    @media(max-width:1024px){.nav-links a{padding:9px 8px;font-size:13px}.hero-inner{gap:35px}.section{padding:78px 0}}
    @media(max-width:768px){
      .navbar{height:70px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:6%;right:6%;top:70px;background:var(--charcoal);padding:12px;border:1px solid var(--line-dark);border-radius:0 0 14px 14px;box-shadow:var(--shadow-dark);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.status-inner{overflow:hidden;white-space:nowrap}.hero-inner,.device-layout{grid-template-columns:1fr}.page-hero{padding:58px 0 65px}.device-board{max-width:560px;transform:none;margin:auto}.device-menu{position:static}.section-head,.cta-inner{display:block}.section-lead{margin-top:14px}.cta-actions{margin-top:25px}.tips{grid-template-columns:1fr 1fr}.footer-main{grid-template-columns:1.5fr 1fr 1fr}}
    @media(max-width:520px){
      .container{width:90%}.logo{font-size:16px}.logo-mark{width:28px;height:28px}.page-hero h1{font-size:34px}.hero-copy{font-size:15px}.hero-actions,.cta-actions{flex-direction:column}.hero-actions .btn,.cta-actions .btn{width:100%}.section{padding:62px 0}.tips,.footer-main{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}.device-board{padding:17px}.faq-item{padding:0 17px}.faq-item summary{font-size:15px}.anchor-nav a{font-size:12px}}

/* roulang page: category5 */
:root{
      --green:#123b32;
      --green-dark:#0c2923;
      --charcoal:#17211e;
      --lime:#c8f35a;
      --lime-soft:#e8f7b5;
      --coral:#ff7657;
      --cream:#f6f4ee;
      --white:#fff;
      --ink:#1b2824;
      --muted:#6d7972;
      --line:#dce2d8;
      --line-dark:rgba(255,255,255,.15);
      --shadow:0 16px 38px rgba(18,59,50,.09);
      --shadow-dark:0 18px 42px rgba(0,0,0,.24);
      --radius:18px;
      --radius-sm:11px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--cream);color:var(--ink);line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    button{font:inherit;cursor:pointer;border:0}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),88%);margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:var(--charcoal);color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
    .navbar{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:800;letter-spacing:-.04em;white-space:nowrap}
    .logo-mark{width:31px;height:31px;border-radius:9px;background:var(--lime);display:grid;place-items:center;color:var(--green);font-size:17px;font-weight:900;box-shadow:4px 4px 0 rgba(200,243,90,.18)}
    .nav-links{display:flex;align-items:center;gap:5px;list-style:none;margin:0;padding:0}
    .nav-links a{display:block;padding:10px 13px;border-radius:9px;color:#cbd5cc;font-size:14px;transition:.25s ease}
    .nav-links a:hover,.nav-links a.active{color:var(--lime);background:rgba(200,243,90,.1)}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;width:44px;height:44px;border-radius:9px}
    .status-bar{background:#0f3029;color:#b9c9bd;font-size:12px}
    .status-inner{min-height:34px;display:flex;align-items:center;gap:25px}
    .status-item{display:flex;align-items:center;gap:7px}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--lime)}
    .hero{background:var(--charcoal);color:#fff;padding:72px 0 82px;position:relative;overflow:hidden}
    .hero:before{content:"";position:absolute;inset:0;opacity:.14;background-image:linear-gradient(rgba(200,243,90,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(200,243,90,.12) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 82%)}
    .hero-content{position:relative;max-width:800px}
    .eyebrow,.section-kicker{color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.04em}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--lime);margin-bottom:17px}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--lime)}
    .hero h1{font-size:clamp(35px,5vw,58px);line-height:1.18;letter-spacing:-.055em;margin:0 0 22px}
    .hero-copy{color:#c4d0c7;max-width:740px;font-size:17px;line-height:1.9;margin:0}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:11px;font-weight:750;font-size:14px;border:1px solid transparent;transition:.25s ease}
    .btn-primary{background:var(--lime);color:var(--green)}
    .btn-primary:hover{background:#d9fa78;transform:translateY(-2px);box-shadow:0 9px 20px rgba(200,243,90,.2)}
    .btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:transparent}
    .btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
    .btn-dark{background:var(--green);color:#fff}
    .btn-dark:hover{background:#1a5144;transform:translateY(-2px)}
    .btn-light-outline{border-color:var(--green);color:var(--green);background:transparent}
    .btn-light-outline:hover{background:var(--green);color:#fff}
    .btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px}
    .badge{display:inline-flex;padding:5px 10px;border-radius:99px;background:var(--lime-soft);color:var(--green);font-size:11px;font-weight:800;white-space:nowrap}
    .badge.dark{background:rgba(200,243,90,.14);color:var(--lime)}
    .badge.coral{background:#ffe2da;color:#a9422d}
    .section{padding:96px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:36px}
    .section h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.045em;color:var(--green);margin:7px 0 0}
    .section-lead{color:var(--muted);max-width:570px;font-size:15px;margin:0}
    .update-layout{display:grid;grid-template-columns:280px 1fr;gap:72px;align-items:start}
    .anchor-box{position:sticky;top:112px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
    .anchor-box h3{color:var(--green);font-size:17px;margin:0 0 15px}
    .anchor-list{list-style:none;margin:0;padding:0;display:grid;gap:5px}
    .anchor-list a{display:block;padding:10px 12px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .anchor-list a:hover{color:var(--green);background:var(--lime-soft)}
    .timeline{position:relative;padding-left:34px}
    .timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:10px;width:2px;background:#cbd9c9}
    .timeline-item{position:relative;margin-bottom:30px;padding:27px 30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s}
    .timeline-item:hover{transform:translateY(-3px);box-shadow:0 20px 42px rgba(18,59,50,.13)}
    .timeline-item:before{content:"";position:absolute;left:-33px;top:34px;width:16px;height:16px;background:var(--lime);border:4px solid var(--cream);border-radius:50%;box-shadow:0 0 0 1px #bed0bf}
    .timeline-top{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:12px}
    .timeline-date{color:var(--muted);font-size:13px;font-weight:700}
    .timeline-item h3{color:var(--green);font-size:22px;line-height:1.4;margin:0 0 8px}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0;line-height:1.85}
    .timeline-link{display:inline-flex;color:var(--green);font-size:14px;font-weight:800;margin-top:17px;border-bottom:2px solid var(--lime);padding-bottom:2px}
    .feature-band{background:var(--green);color:#fff;padding:70px 0}
    .feature-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;align-items:center}
    .feature-band h2{font-size:clamp(27px,3.2vw,42px);line-height:1.3;letter-spacing:-.045em;margin:8px 0 15px}
    .feature-band p{color:#c6d4c8;margin:0;max-width:470px}
    .update-check{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .check-item{padding:19px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;transition:.2s}
    .check-item:hover{border-color:var(--lime);background:rgba(200,243,90,.09)}
    .check-item strong{display:block;color:var(--lime);font-size:16px;margin-bottom:5px}
    .check-item span{color:#c6d4c8;font-size:13px}
    .reading{background:#fff}
    .reading-list{border-top:1px solid var(--line)}
    .reading-item{display:grid;grid-template-columns:145px 1fr auto;gap:24px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .reading-item time{color:var(--muted);font-size:13px}
    .reading-item h3{font-size:18px;color:var(--green);margin:0 0 4px}
    .reading-item p{color:var(--muted);font-size:13px;margin:0}
    .arrow{color:var(--green);font-size:22px;transition:.2s}
    .reading-item:hover .arrow{color:var(--coral);transform:translateX(4px)}
    .cta{padding:76px 0;background:var(--cream)}
    .cta-box{background:var(--charcoal);border-radius:var(--radius);padding:48px 55px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:var(--shadow-dark)}
    .cta-box h2{font-size:clamp(26px,3vw,38px);line-height:1.3;margin:0 0 10px}
    .cta-box p{color:#c4d0c7;margin:0;max-width:620px}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}
    .site-footer{background:var(--charcoal);color:#fff;padding:62px 0 22px}
    .footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;padding-bottom:44px}
    .footer-brand p{color:#aebdb1;max-width:280px;font-size:13px;margin:17px 0 0}
    .footer-title{color:var(--lime);font-size:13px;font-weight:800;margin-bottom:13px}
    .footer-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-links a{color:#b9c7bc;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid var(--line-dark);padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#84958a;font-size:12px}
    @media(max-width:1024px){
      .nav-links a{padding:9px 8px;font-size:13px}
      .update-layout{gap:38px}
      .feature-grid{gap:35px}
    }
    @media(max-width:768px){
      .navbar{height:70px}
      .menu-toggle{display:block}
      .nav-links{display:none;position:absolute;left:6%;right:6%;top:70px;background:var(--charcoal);padding:12px;border:1px solid rgba(255,255,255,.12);border-radius:0 0 14px 14px;box-shadow:var(--shadow-dark)}
      .nav-links.open{display:grid}
      .nav-links a{padding:13px 14px}
      .status-inner{overflow:hidden;white-space:nowrap;gap:18px}
      .hero{padding:58px 0 64px}
      .hero-copy{font-size:16px}
      .section{padding:70px 0}
      .section-head,.cta-box{display:block}
      .section-lead{margin-top:14px}
      .update-layout,.feature-grid{grid-template-columns:1fr}
      .anchor-box{position:static}
      .anchor-list{grid-template-columns:repeat(2,1fr)}
      .feature-grid .btn{margin-top:24px}
      .cta-actions{margin-top:25px}
      .footer-main{grid-template-columns:repeat(2,1fr)}
      .footer-brand{grid-column:1/-1}
    }
    @media(max-width:520px){
      .container{width:90%}
      .logo{font-size:16px}
      .logo-mark{width:29px;height:29px}
      .hero h1{font-size:35px}
      .hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .btn,.cta-actions .btn{width:100%}
      .timeline{padding-left:25px}
      .timeline-item{padding:22px 20px}
      .timeline-item:before{left:-25px}
      .timeline:before{left:7px}
      .timeline-top{align-items:flex-start;flex-direction:column;gap:6px}
      .update-check{grid-template-columns:1fr}
      .reading-item{grid-template-columns:1fr auto;gap:4px 14px}
      .reading-item time{grid-column:1/-1}
      .reading-item p{grid-column:1/-1}
      .anchor-list{grid-template-columns:1fr}
      .cta-box{padding:32px 24px}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px 20px}
      .footer-bottom{display:grid;gap:7px}
    }

/* 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}