/* roulang page: index */
:root{
  --rl-green-900:#0E3B2E;
  --rl-green-700:#14513D;
  --rl-orange:#F2541B;
  --rl-orange-dark:#D8430E;
  --rl-lime:#C8F04F;
  --rl-bg:#F7F5EF;
  --rl-bg-alt:#EFEBE1;
  --rl-dark:#0E1F1A;
  --rl-card:#FFFFFF;
  --rl-text:#1D2522;
  --rl-muted:#5B6B64;
  --rl-dark-text:#D7E4DC;
  --rl-dark-muted:#93A89E;
  --rl-border:#E3DED3;
  --rl-border-dark:#22463B;
  --rl-success:#17805A;
  --rl-error:#C0392B;
  --rl-radius-card:14px;
  --rl-radius-img:12px;
  --rl-radius-btn:10px;
  --rl-radius-pill:999px;
  --rl-shadow:0 1px 2px rgba(14,31,26,.06),0 10px 28px -16px rgba(14,31,26,.20);
  --rl-shadow-hover:0 2px 4px rgba(14,31,26,.08),0 18px 36px -18px rgba(14,31,26,.28);
  --rl-container:1200px;
  --rl-font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --rl-mono:'Inter','DIN Alternate',ui-monospace,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--rl-font);
  font-size:17px;
  line-height:1.85;
  color:var(--rl-text);
  background:var(--rl-bg);
  text-align:left;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--rl-green-900);text-decoration:none;transition:color 180ms ease-out;}
a:hover{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px;text-decoration-color:var(--rl-orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--rl-green-900);font-weight:800;letter-spacing:-.01em;}
h1{font-size:clamp(30px,5vw,46px);line-height:1.22;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
p{margin:0 0 1.15em;}
ul{margin:0 0 1.15em;padding-left:1.1em;line-height:1.6;}
li{margin-bottom:.4em;}
.rl-mono,.num{font-family:var(--rl-mono);font-variant-numeric:tabular-nums;}
.rl-container{width:100%;max-width:var(--rl-container);margin:0 auto;padding:0 24px;}
.rl-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* 按钮 */
.btn-rl{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--rl-radius-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  text-decoration:none!important;
  transition:transform 180ms ease-out,background-color 180ms ease-out,box-shadow 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out;
}
.btn-primary-rl{background:var(--rl-orange);color:#fff;box-shadow:0 10px 22px -14px rgba(242,84,27,.95);}
.btn-primary-rl:hover,.btn-primary-rl:focus{background:var(--rl-orange-dark);color:#fff;transform:translateY(-2px);}
.btn-primary-rl:active{transform:translateY(0);}
.btn-primary-rl:focus-visible{outline:3px solid rgba(242,84,27,.35);outline-offset:2px;}
.btn-ghost-rl{background:transparent;border-color:var(--rl-green-900);color:var(--rl-green-900);}
.btn-ghost-rl:hover{background:rgba(14,59,46,.08);color:var(--rl-green-900);transform:translateY(-2px);}
.btn-ghost-dark{background:transparent;border-color:var(--rl-dark-text);color:var(--rl-dark-text);}
.btn-ghost-dark:hover{background:rgba(215,228,220,.12);color:#fff;transform:translateY(-2px);}
.btn-sm-rl{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-rl[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.text-link{
  font-weight:600;color:var(--rl-green-900);
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;text-decoration-color:var(--rl-green-900);
}
.text-link:hover{text-decoration-color:var(--rl-orange);color:var(--rl-green-900);}
.badge-cat{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--rl-radius-pill);
  background:rgba(14,59,46,.08);color:var(--rl-green-900);
}
.badge-hot{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--rl-radius-pill);
  background:var(--rl-orange);color:#fff;
}
.status-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--rl-muted);white-space:nowrap;}
.status-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--rl-lime);box-shadow:0 0 0 3px rgba(200,240,79,.28);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;height:64px;background:#fff;
  border-bottom:1px solid var(--rl-border);
  transition:height 180ms ease-out,box-shadow 180ms ease-out,background-color 180ms ease-out;
}
.site-header.compact{height:56px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);box-shadow:0 1px 2px rgba(14,31,26,.08);}
.nav-inner{height:100%;display:flex;align-items:center;gap:24px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none!important;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--rl-green-900),var(--rl-green-700));position:relative;flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:12px;border-radius:50%;background:var(--rl-orange);transform:translate(-50%,-50%);box-shadow:0 0 0 4px rgba(200,240,79,.35);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:800;color:var(--rl-green-900);letter-spacing:.02em;}
.brand-text i{font-style:normal;font-size:11px;color:var(--rl-muted);letter-spacing:.26em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--rl-text);padding:8px 14px;border-radius:8px;}
.main-nav a:hover{background:rgba(14,59,46,.06);text-decoration:none;}
.main-nav a.active{color:var(--rl-green-900);font-weight:700;}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--rl-orange);}
.nav-side{display:flex;align-items:center;gap:12px;}
.count-badge{
  font-size:13px;color:var(--rl-green-900);background:var(--rl-bg-alt);
  border:1px solid var(--rl-border);border-radius:var(--rl-radius-pill);padding:5px 12px;white-space:nowrap;
}
.count-badge b{font-family:var(--rl-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--rl-border);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;gap:4px;flex-direction:column;cursor:pointer;flex:0 0 auto;margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--rl-green-900);}
.mobile-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--rl-border);box-shadow:var(--rl-shadow);padding:8px 18px 20px;}
.mobile-nav a{display:block;padding:14px 4px;font-size:16px;color:var(--rl-text);border-bottom:1px solid var(--rl-border);text-decoration:none;}
.mobile-nav a.active{color:var(--rl-green-900);font-weight:700;}
.mobile-nav-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;flex-wrap:wrap;}

/* Hero */
.hero{position:relative;background:var(--rl-bg-alt);border-bottom:1px solid var(--rl-border);padding:64px 0 72px;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--rl-green-900);
  background:rgba(200,240,79,.35);border:1px solid rgba(14,59,46,.14);border-radius:var(--rl-radius-pill);
  padding:5px 14px;margin-bottom:18px;
}
.hero h1{margin-bottom:18px;}
.hero-sub{font-size:17px;color:var(--rl-muted);max-width:34em;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 22px;}
.hero-points{list-style:none;padding:0;margin:0;display:grid;gap:8px;}
.hero-points li{position:relative;padding-left:22px;font-size:15px;color:var(--rl-muted);margin:0;}
.hero-points li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--rl-orange);}
.hero-visual{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--rl-shadow);background:var(--rl-green-900);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(105deg,rgba(14,59,46,.90) 0%,rgba(14,59,46,.82) 45%,rgba(14,59,46,.55) 100%);}
.hero-visual .hero-caption{position:absolute;left:22px;top:22px;z-index:2;color:#fff;}
.hero-visual .hero-caption b{display:block;font-size:18px;font-weight:800;letter-spacing:.02em;}
.hero-visual .hero-caption span{font-size:13px;color:var(--rl-dark-muted);}
.hero-timer{
  position:absolute;right:18px;bottom:18px;z-index:2;text-align:right;
  background:rgba(14,31,26,.74);border:1px solid var(--rl-border-dark);border-radius:12px;padding:10px 14px;
}
.timer-label{display:block;font-size:12px;color:var(--rl-dark-muted);}
.timer-value{font-family:var(--rl-mono);font-variant-numeric:tabular-nums;font-size:20px;color:var(--rl-lime);letter-spacing:.06em;}

/* 区块通用 */
.section{padding:88px 0;}
.section-alt{background:var(--rl-bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.section-head h2{margin-bottom:6px;}
.section-head p{margin:0;color:var(--rl-muted);font-size:15px;max-width:52em;}
.dark-section{background:var(--rl-dark);color:var(--rl-dark-text);padding:88px 0;}
.dark-section h2{color:#fff;}
.dark-section h3{color:#fff;}
.dark-section p{color:var(--rl-dark-muted);}

/* 价值点条 */
.value-strip{background:#fff;border-bottom:1px solid var(--rl-border);}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.value-cell{padding:34px 24px;border-left:1px solid var(--rl-border);}
.value-cell:first-child{border-left:none;}
.value-num{font-family:var(--rl-mono);font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;color:var(--rl-green-900);line-height:1.1;}
.value-label{font-size:15px;font-weight:700;margin-top:8px;color:var(--rl-text);}
.value-desc{font-size:13px;color:var(--rl-muted);}

/* 轮播 */
.carousel-viewport{overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:6px;}
.carousel-viewport::-webkit-scrollbar{display:none;}
.carousel-track{display:flex;gap:24px;}
.carousel-slide{flex:0 0 68%;scroll-snap-align:start;margin:0;background:#fff;border:1px solid var(--rl-border);border-radius:16px;overflow:hidden;box-shadow:var(--rl-shadow);}
.carousel-slide img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.carousel-slide figcaption{padding:16px 22px;font-size:15px;color:var(--rl-muted);}
.carousel-slide figcaption b{color:var(--rl-green-900);font-weight:700;margin-right:8px;}
.carousel-controls{display:flex;align-items:center;gap:10px;margin-top:22px;}
.carousel-arrow{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--rl-border);background:#fff;color:var(--rl-green-900);
  font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background-color 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out;
}
.carousel-arrow:hover{background:var(--rl-green-900);border-color:var(--rl-green-900);color:#fff;}
.carousel-dots{display:flex;align-items:center;gap:8px;margin-left:6px;}
.dot-btn{width:18px;height:6px;border-radius:999px;border:none;background:var(--rl-border);cursor:pointer;padding:0;transition:width 180ms ease-out,background-color 180ms ease-out;}
.dot-btn.active{width:36px;background:var(--rl-orange);}

/* 系统要求 */
.req-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px;}
.tab-btn{
  min-height:44px;padding:10px 22px;border-radius:var(--rl-radius-pill);
  border:1px solid var(--rl-border-dark);background:transparent;color:var(--rl-dark-text);font-size:15px;cursor:pointer;
  transition:background-color 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out;
}
.tab-btn:hover{background:rgba(215,228,220,.12);}
.tab-btn.active{background:var(--rl-green-700);border-color:var(--rl-green-700);color:#fff;font-weight:600;}
.req-panel{display:none;}
.req-panel.active{display:block;}
.req-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;margin:0;}
.req-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 14px;min-height:44px;border-radius:8px;}
.req-row:nth-of-type(4n+1),.req-row:nth-of-type(4n+2){background:rgba(255,255,255,.03);}
.req-row dt{font-size:14px;color:var(--rl-dark-muted);font-weight:400;margin:0;}
.req-row dd{margin:0;font-family:var(--rl-mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--rl-dark-text);text-align:right;}

/* 评价墙 */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.review-card{
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-radius-card);padding:24px;
  box-shadow:var(--rl-shadow);display:flex;flex-direction:column;gap:12px;height:100%;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--rl-green-900);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex:0 0 auto;}
.review-name{font-size:15px;font-weight:700;color:var(--rl-green-900);}
.review-date{font-size:12px;color:var(--rl-muted);font-family:var(--rl-mono);}
.stars{color:var(--rl-orange);font-family:var(--rl-mono);font-size:14px;}
.review-body{margin:0;font-size:15px;color:var(--rl-text);}

/* 下载 */
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.dl-btn{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;border-radius:var(--rl-radius-card);
  border:1px solid var(--rl-border);background:#fff;box-shadow:var(--rl-shadow);text-decoration:none!important;color:inherit;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;
}
.dl-btn:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);border-color:rgba(242,84,27,.55);}
.dl-platform{font-size:16px;font-weight:700;color:var(--rl-green-900);}
.dl-platform span{display:inline-block;margin-left:8px;font-size:12px;font-weight:600;padding:3px 9px;border-radius:var(--rl-radius-pill);background:rgba(14,59,46,.08);color:var(--rl-green-900);}
.dl-meta{font-size:13px;color:var(--rl-muted);font-family:var(--rl-mono);font-variant-numeric:tabular-nums;}
.dl-note{font-size:13px;color:var(--rl-muted);margin:16px 0 0;}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start;}
.news-feature{background:#fff;border:1px solid var(--rl-border);border-radius:var(--rl-radius-card);overflow:hidden;box-shadow:var(--rl-shadow);}
.news-feature a{text-decoration:none;color:inherit;display:block;}
.news-feature img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-body{padding:22px 24px;}
.news-title{font-size:19px;font-weight:700;color:var(--rl-green-900);margin:10px 0 8px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-excerpt{font-size:14px;color:var(--rl-muted);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta{font-size:13px;color:var(--rl-muted);font-family:var(--rl-mono);font-variant-numeric:tabular-nums;}
.news-side{display:flex;flex-direction:column;gap:20px;}
.news-card{
  display:grid;grid-template-columns:40% 1fr;gap:16px;background:#fff;border:1px solid var(--rl-border);
  border-radius:var(--rl-radius-card);overflow:hidden;box-shadow:var(--rl-shadow);text-decoration:none!important;color:inherit;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--rl-shadow-hover);}
.news-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.news-card .news-body{padding:16px 18px 16px 0;}
.news-card .news-title{font-size:16px;margin:8px 0 6px;}
.news-card .meta{font-size:12px;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--rl-border);border-radius:var(--rl-radius-card);background:#fff;text-align:center;padding:28px;
}
.empty-state .icon{width:44px;height:44px;border-radius:12px;border:1.5px solid var(--rl-green-900);position:relative;}
.empty-state .icon::after{content:"";position:absolute;left:11px;right:11px;top:14px;height:1.5px;background:var(--rl-green-900);box-shadow:0 8px 0 var(--rl-green-900);}
.empty-state p{margin:0;color:var(--rl-muted);font-size:15px;}

/* FAQ */
.faq-wrap{max-width:900px;}
.faq-acc .accordion-item{border:1px solid var(--rl-border);border-radius:12px;overflow:hidden;margin-bottom:12px;background:#fff;box-shadow:var(--rl-shadow);}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--rl-text);background:#fff;box-shadow:none;padding:18px 22px;
  border-radius:0;gap:16px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--rl-green-900);background:var(--rl-bg);box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(242,84,27,.25);}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:400;color:var(--rl-green-900);margin-left:auto;
  transition:transform 180ms ease-out,color 180ms ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--rl-orange);}
.faq-acc .accordion-body{font-size:16px;line-height:1.8;color:var(--rl-muted);border-left:3px solid var(--rl-orange);background:var(--rl-bg);padding:18px 22px;}

/* CTA 条带 */
.cta-band{position:relative;background:var(--rl-green-900);color:#fff;padding:56px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-60px;width:380px;height:260px;
  background:repeating-linear-gradient(115deg,rgba(242,84,27,.85) 0 10px,transparent 10px 28px);
  transform:skewX(-12deg);opacity:.45;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin:0 0 6px;font-size:clamp(20px,2.4vw,26px);}
.cta-inner p{margin:0;color:var(--rl-dark-muted);font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--rl-dark);color:var(--rl-dark-text);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-text b{color:#fff;}
.footer-brand .brand-text i{color:var(--rl-dark-muted);}
.footer-desc{font-size:14px;color:var(--rl-dark-muted);margin:14px 0 12px;}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 14px;font-weight:700;}
.footer-col a,.footer-col p{display:block;font-size:14px;color:var(--rl-dark-muted);margin:0 0 10px;line-height:1.6;}
.footer-col a:hover{color:#fff;text-decoration-color:var(--rl-orange);}
.footer-bottom{
  margin-top:38px;border-top:1px solid var(--rl-border-dark);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--rl-dark-muted);
}
.footer-bottom a{color:var(--rl-dark-muted);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom a:hover{color:#fff;text-decoration-color:var(--rl-orange);}

/* 响应式 */
@media (min-width:1400px){:root{--rl-container:1280px;}}
@media (max-width:1199.98px){
  .carousel-slide{flex:0 0 72%;}
}
@media (max-width:991.98px){
  body{font-size:16px;line-height:1.78;}
  .section,.dark-section{padding:64px 0;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-side .status-tag,.nav-side .count-badge{display:none;}
  .site-header.nav-open .mobile-nav{display:block;}
  .value-grid{grid-template-columns:repeat(2,1fr);}
  .value-cell{border-left:none;border-top:1px solid var(--rl-border);}
  .value-cell:nth-child(odd){border-right:1px solid var(--rl-border);}
  .value-cell:nth-child(1),.value-cell:nth-child(2){border-top:none;}
  .review-grid{grid-template-columns:repeat(2,1fr);}
  .download-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .req-list{grid-template-columns:1fr;}
  .req-row:nth-of-type(odd){background:rgba(255,255,255,.03);}
  .req-row:nth-of-type(even){background:transparent;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .review-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:6px;scrollbar-width:none;}
  .review-grid::-webkit-scrollbar{display:none;}
  .review-card{flex:0 0 82vw;scroll-snap-align:start;}
  .download-grid{grid-template-columns:1fr;}
  .carousel-slide{flex:0 0 86%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .news-card{grid-template-columns:38% 1fr;}
}
@media (max-width:575.98px){
  .rl-container{padding:0 18px;}
  .section,.dark-section{padding:48px 0;}
  .hero{padding:36px 0 48px;}
  .hero-actions .btn-rl{width:100%;}
  .value-grid{grid-template-columns:1fr;}
  .value-cell{border-right:none!important;border-top:1px solid var(--rl-border);}
  .value-cell:first-child{border-top:none;}
  .footer-grid{grid-template-columns:1fr;}
  .req-row{flex-direction:column;align-items:flex-start;gap:2px;}
  .req-row dd{text-align:left;}
  .hero-timer{right:12px;bottom:12px;padding:8px 10px;}
  .timer-value{font-size:17px;}
}

/* roulang page: article */
:root{
  --ink:#0E3B2E;
  --ink-2:#14513D;
  --orange:#F2541B;
  --orange-dark:#D8430E;
  --lime:#C8F04F;
  --bg:#F7F5EF;
  --bg-2:#EFEBE1;
  --white:#FFFFFF;
  --dark:#0E1F1A;
  --text:#1D2522;
  --muted:#5B6B64;
  --light-text:#D7E4DC;
  --light-muted:#93A89E;
  --line:#E3DED3;
  --line-dark:#22463B;
  --ok:#17805A;
  --warn:#F2541B;
  --err:#C0392B;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(14,31,26,.06),0 10px 28px -16px rgba(14,31,26,.20);
  --shadow-hover:0 2px 4px rgba(14,31,26,.08),0 18px 36px -18px rgba(14,31,26,.28);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:'Inter','DIN Alternate',ui-monospace,Consolas,"Courier New",monospace;
  --bs-primary:#0E3B2E;
  --bs-body-font-family:var(--font-sans);
  --bs-border-radius:14px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-sm:10px;
  --bs-link-color:#0E3B2E;
  --bs-link-hover-color:#F2541B;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--orange)}
button{font-family:inherit}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.rl-container{max-width:1280px}}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-dark{background:var(--dark);color:var(--light-text);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.section-head{margin-bottom:36px}
.section-title{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  font-weight:800;
  color:var(--ink);
  letter-spacing:-.01em;
}
.section-dark .section-title{color:#fff}
.section-sub{margin-top:10px;font-size:16px;color:var(--muted);max-width:720px}
.section-dark .section-sub{color:var(--light-muted)}
/* ===== buttons ===== */
.btn-rl{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1.5px solid transparent;text-decoration:none;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-rl:hover{text-decoration:none}
.btn-primary-rl{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-primary-rl:hover{background:var(--orange-dark);border-color:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-primary-rl:active{transform:translateY(1px)}
.btn-secondary-rl{background:transparent;color:var(--ink);border-color:var(--ink);border-width:1.5px}
.btn-secondary-rl:hover{background:rgba(14,59,46,.08);color:var(--ink);transform:translateY(-2px)}
.btn-secondary-rl:active{transform:translateY(1px)}
.btn-ghost-rl{background:transparent;color:var(--ink);border-color:transparent;padding:10px 4px;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}
.btn-ghost-rl:hover{color:var(--orange);text-decoration-color:var(--orange)}
.btn-rl:focus-visible,.offcanvas a:focus-visible,.main-nav a:focus-visible{outline:3px solid rgba(242,84,27,.35);outline-offset:2px;border-radius:6px}
.btn-sm-rl{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block-mobile{width:100%}
@media(min-width:768px){.btn-block-mobile{width:auto}}
/* ===== badges ===== */
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
  color:var(--ink);background:rgba(14,59,46,.08);border:1px solid rgba(14,59,46,.16);
}
.badge-cat.is-outline{background:transparent;border:1px solid var(--orange);color:var(--orange)}
.badge-act{display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--radius-pill);background:var(--orange);color:#fff;font-size:12.5px;font-weight:600}
.status-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--muted);white-space:nowrap;
}
.status-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(200,240,79,.25);flex:none}
.section-dark .status-tag{color:var(--light-muted)}
.tag-pill{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--ink);background:var(--white);border:1px solid var(--line);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.tag-pill:hover{color:var(--orange);border-color:var(--orange);text-decoration:none;transform:translateY(-1px)}
/* ===== header / nav ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:height .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.site-header .header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
  transition:height .2s ease-out;
}
.site-header.is-compact{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);box-shadow:0 1px 0 rgba(14,31,26,.06),0 8px 24px -18px rgba(14,31,26,.35)}
.site-header.is-compact .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:
    linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);
  position:relative;overflow:hidden;
}
.brand-mark::before{content:"";position:absolute;left:7px;top:9px;width:20px;height:3px;background:var(--orange);border-radius:2px;box-shadow:0 6px 0 0 rgba(255,255,255,.75),0 12px 0 0 rgba(200,240,79,.9)}
.brand-mark::after{content:"";position:absolute;right:-8px;bottom:-8px;width:22px;height:22px;border-radius:50%;background:rgba(200,240,79,.22)}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text b{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-text i{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px}
.main-nav a{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text);border-radius:8px;
  border-bottom:2px solid transparent;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.main-nav a:hover{color:var(--ink);background:rgba(14,59,46,.05);text-decoration:none}
.main-nav a.active{color:var(--ink);font-weight:700;border-bottom-color:var(--orange)}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--white);display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--ink)}
@media(max-width:1199px){
  .main-nav a{padding:0 10px;font-size:14.5px}
}
@media(max-width:991px){
  .main-nav{display:none}
  .header-actions .status-tag{display:none}
}
@media(max-width:575px){
  .site-header .header-inner{height:64px;gap:12px}
  .brand-text b{font-size:15px}
  .header-actions .btn-primary-rl{padding:10px 16px;font-size:14px}
}
/* ===== offcanvas drawer ===== */
.nav-drawer{background:var(--white);width:min(88vw,340px)}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.nav-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:20px}
.nav-drawer .btn-close{opacity:.6}
.nav-drawer .btn-close:focus{box-shadow:0 0 0 3px rgba(242,84,27,.35)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:16px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-nav a:last-child{border-bottom:none}
.drawer-nav a:hover{background:rgba(14,59,46,.06);text-decoration:none;color:var(--ink)}
.drawer-nav a.active{color:var(--ink);font-weight:700;box-shadow:inset 3px 0 0 var(--orange);background:rgba(242,84,27,.06)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:18px;border-top:1px solid var(--line)}
.drawer-foot .btn-primary-rl{width:100%}
/* ===== breadcrumb ===== */
.crumb-bar{padding:22px 0 0}
.rl-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);line-height:1.6}
.rl-breadcrumb li{display:inline-flex;align-items:center;min-width:0}
.rl-breadcrumb .sep{color:#B9C2BB}
.rl-breadcrumb a{color:var(--muted)}
.rl-breadcrumb a:hover{color:var(--orange)}
.rl-breadcrumb .current{
  color:var(--text);
  max-width:min(52vw,520px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
/* ===== article head ===== */
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--line)}
.article-title{
  margin-top:16px;
  font-size:clamp(28px,4.4vw,36px);
  line-height:1.28;font-weight:800;color:var(--ink);letter-spacing:-.01em;
  max-width:960px;
}
.article-meta{
  margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13.5px;color:var(--muted);
}
.article-meta .mono{color:var(--ink-2)}
.article-meta .divider{width:1px;height:13px;background:var(--line);display:inline-block}
/* ===== layout ===== */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 320px;
  justify-content:space-between;
  gap:40px;
  padding:44px 0 0;
  align-items:start;
}
.article-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:38px 40px 42px;
}
.article-body{font-size:17px;line-height:1.85;color:var(--text)}
.article-body>*+*{margin-top:1.15em}
.article-body p{font-size:17px;line-height:1.85;text-align:left}
.article-body h1,.article-body h2{
  position:relative;
  margin-top:32px;margin-bottom:12px;
  padding-left:14px;
  font-size:clamp(21px,2.4vw,26px);
  line-height:1.4;font-weight:800;color:var(--ink);
}
.article-body h1::before,.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.18em;width:4px;border-radius:2px;background:var(--orange);
}
.article-body h3{margin-top:26px;margin-bottom:10px;font-size:20px;line-height:1.45;font-weight:700;color:var(--ink)}
.article-body h4{margin-top:20px;margin-bottom:8px;font-size:17px;font-weight:700;color:var(--ink-2)}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(242,84,27,.55)}
.article-body a:hover{color:var(--orange)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{margin:1.05em 0;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.6em;line-height:1.75}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.68em;width:7px;height:7px;background:var(--orange);border-radius:1px}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:.18em;
  width:16px;height:16px;border-radius:50%;
  font-family:var(--font-mono);font-size:11px;font-weight:700;line-height:16px;text-align:center;
  color:#fff;background:var(--ink-2);
}
.article-body blockquote{
  margin:1.4em 0;padding:18px 22px;
  background:var(--bg-2);
  border-left:4px solid var(--orange);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--ink-2);
}
.article-body blockquote p{margin:0;font-size:16.5px}
.article-body img{border-radius:var(--radius-img);margin:1.4em auto;box-shadow:var(--shadow)}
.article-body figure{margin:1.4em 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.article-body code{
  font-family:var(--font-mono);font-size:.92em;
  background:var(--bg-2);border-radius:6px;padding:2px 6px;color:var(--ink-2);
}
.article-body pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;font-size:14px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-2);color:var(--ink);font-weight:700}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0}
.article-body::after{content:"";display:block;clear:both}
/* ===== empty state ===== */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 20px;
}
.empty-icon{width:44px;height:44px;border-radius:12px;border:2px solid var(--line);position:relative}
.empty-icon::before{content:"";position:absolute;left:11px;top:9px;width:18px;height:2px;background:var(--muted);box-shadow:0 7px 0 0 var(--muted),0 14px 0 0 var(--line)}
.empty-state p{font-size:15px;color:var(--muted)}
/* ===== sidebar ===== */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px}
.side-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:22px 22px 24px;
}
.side-card h2,.side-card h3{
  font-size:15px;font-weight:800;color:var(--ink);letter-spacing:.02em;
  padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.point-list{display:flex;flex-direction:column;gap:10px}
.point-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--muted)}
.point-list li span.num{
  font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--orange);
  flex:none;padding-top:3px;
}
.side-links{display:flex;flex-direction:column}
.side-links a{
  display:block;padding:12px 0;border-bottom:1px dashed var(--line);
}
.side-links a:last-child{border-bottom:none;padding-bottom:0}
.side-links .t{font-size:15px;line-height:1.55;color:var(--text);font-weight:600}
.side-links a:hover .t{color:var(--orange)}
.side-links .d{margin-top:4px;font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.side-cta{background:var(--ink);border-color:var(--ink);color:var(--light-text)}
.side-cta h3{color:#fff;border-bottom-color:var(--line-dark)}
.side-cta p{font-size:14px;line-height:1.7;color:var(--light-muted);margin-bottom:16px}
.side-cta .btn-primary-rl{width:100%}
.side-cta .status-tag{margin-top:14px;color:var(--light-muted)}
@media(max-width:1100px){
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:32px}
  .article-side{position:static}
}
@media(max-width:767px){
  .article-card{padding:24px 20px 28px}
  .article-body,.article-body p{font-size:16px;line-height:1.78}
  .rl-breadcrumb .current{max-width:60vw}
}
/* ===== tags + post nav ===== */
.tag-block{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-block .label{font-size:13px;color:var(--muted);margin-right:2px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav a{
  display:block;padding:18px 20px;border-radius:var(--radius-card);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(242,84,27,.4);text-decoration:none}
.post-nav .k{font-family:var(--font-mono);font-size:12px;color:var(--orange);letter-spacing:.06em}
.post-nav .v{margin-top:8px;font-size:15px;font-weight:600;color:var(--ink);line-height:1.55}
.post-nav a.next{text-align:right}
@media(max-width:575px){.post-nav{grid-template-columns:1fr}.post-nav a.next{text-align:left}}
/* ===== download band ===== */
.dl-band{background:var(--dark);color:var(--light-text);border-top:1px solid var(--line-dark);padding:88px 0}
.dl-band .band-head{max-width:680px;margin-bottom:34px}
.dl-band h2{font-size:clamp(24px,3vw,30px);font-weight:800;color:#fff;line-height:1.3}
.dl-band .band-head p{margin-top:10px;font-size:15.5px;color:var(--light-muted)}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--radius-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line-dark);
  transition:transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.dl-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.08);border-color:var(--orange);text-decoration:none}
.dl-icon{
  width:40px;height:40px;border-radius:10px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:rgba(200,240,79,.12);border:1px solid rgba(200,240,79,.35);
  color:var(--lime);font-family:var(--font-mono);font-size:13px;font-weight:700;
}
.dl-text{display:flex;flex-direction:column;gap:3px;min-width:0}
.dl-text b{font-size:15.5px;font-weight:700;color:#fff}
.dl-text i{font-style:normal;font-size:13px;color:var(--light-muted)}
.dl-note{margin-top:20px;font-size:13px;color:var(--light-muted)}
@media(max-width:991px){.dl-band{padding:64px 0}}
@media(max-width:767px){.dl-grid{grid-template-columns:1fr}.dl-band{padding:48px 0}}
/* ===== related ===== */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;gap:16px;align-items:flex-start;
  padding:16px;border-radius:var(--radius-card);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(242,84,27,.4);text-decoration:none}
.rel-thumb{width:104px;flex:none;aspect-ratio:16/10;border-radius:var(--radius-img);overflow:hidden;background:var(--bg-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{min-width:0}
.rel-body .t{font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body .d{margin-top:8px;font-family:var(--font-mono);font-size:12.5px;color:var(--muted)}
@media(max-width:991px){.rel-grid{grid-template-columns:1fr}}
/* ===== CTA band ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--light-text);
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
  padding:56px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(242,84,27,.16) 0 18px,transparent 18px 62px);
  opacity:.85;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,240,79,.18),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;gap:32px;justify-content:space-between}
.cta-inner h2{font-size:clamp(20px,2.6vw,26px);font-weight:800;color:#fff;line-height:1.35}
.cta-inner p{margin-top:8px;font-size:14.5px;color:var(--light-muted)}
@media(max-width:767px){
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px}
  .cta-inner .btn-rl{width:100%}
  .cta-band{padding:48px 0}
}
/* ===== footer ===== */
.site-footer{background:var(--ink);color:var(--light-text);padding:64px 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text i{color:var(--light-muted)}
.footer-brand .brand-mark{background:linear-gradient(135deg,#155e46 0%,#0E3B2E 100%)}
.footer-desc{font-size:14px;line-height:1.75;color:var(--light-muted);max-width:320px;margin-bottom:16px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.06em}
.footer-col a{display:block;font-size:14px;color:var(--light-muted);padding:6px 0;line-height:1.6}
.footer-col a:hover{color:var(--lime);text-decoration:none}
.footer-col a.active{color:#fff;font-weight:600}
.footer-col p{font-size:14px;color:var(--light-muted);padding:5px 0;line-height:1.6}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid var(--line-dark);
  font-size:13px;color:var(--light-muted);
}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr;gap:24px}.site-footer{padding-top:48px}}

/* roulang page: category1 */
:root{
  --rl-green-900:#0E3B2E;
  --rl-green-700:#14513D;
  --rl-orange:#F2541B;
  --rl-orange-dark:#D8430E;
  --rl-lime:#C8F04F;
  --rl-bg:#F7F5EF;
  --rl-bg-alt:#EFEBE1;
  --rl-dark:#0E1F1A;
  --rl-text:#1D2522;
  --rl-muted:#5B6B64;
  --rl-dark-text:#D7E4DC;
  --rl-dark-muted:#93A89E;
  --rl-border:#E3DED3;
  --rl-border-dark:#22463B;
  --rl-success:#17805A;
  --rl-warning:#F2541B;
  --rl-error:#C0392B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sd-1:0 1px 2px rgba(14,31,26,.06),0 10px 28px -16px rgba(14,31,26,.20);
  --sd-2:0 2px 4px rgba(14,31,26,.08),0 18px 36px -18px rgba(14,31,26,.28);
  --f-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --f-mono:'Inter','DIN Alternate',ui-monospace,Consolas,monospace;
  --bs-primary:#F2541B;
  --bs-primary-rgb:242,84,27;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --bs-body-color:#1D2522;
  --bs-body-bg:#F7F5EF;
  --bs-border-color:#E3DED3;
  --bs-link-color:#0E3B2E;
  --bs-link-hover-color:#D8430E;
  --bs-border-radius:14px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--rl-bg);color:var(--rl-text);
  font-family:var(--f-sans);font-size:17px;line-height:1.85;
  text-align:left;overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--rl-green-900);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(30px,5vw,46px);line-height:1.22;font-weight:800}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:700}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
a{color:var(--rl-green-900);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--rl-orange-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--rl-orange)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(242,84,27,.45);outline-offset:2px;border-radius:6px}
.num,.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.rl-container{max-width:1280px}}
@media(max-width:575px){.rl-container{padding:0 18px}}

.rl-section{padding:88px 0}
.rl-section--alt{background:var(--rl-bg-alt);border-top:1px solid var(--rl-border);border-bottom:1px solid var(--rl-border)}
.rl-section--tight{padding:56px 0}
.sec-head{margin-bottom:40px}
.sec-head h2{margin-bottom:12px;position:relative;padding-left:16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:.9em;background:var(--rl-orange);border-radius:2px}
.sec-head p{color:var(--rl-muted);max-width:760px;margin:0}
.sec-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.rl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1.5px solid transparent;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  text-decoration:none!important;
}
.rl-btn i{font-size:15px}
.rl-btn--primary{background:var(--rl-orange);color:#fff!important;box-shadow:0 8px 20px -12px rgba(242,84,27,.85)}
.rl-btn--primary:hover{background:var(--rl-orange-dark);color:#fff!important;transform:translateY(-2px)}
.rl-btn--primary:active{transform:translateY(1px)}
.rl-btn--ghost{background:transparent;border-color:var(--rl-green-900);color:var(--rl-green-900)!important}
.rl-btn--ghost:hover{background:rgba(14,59,46,.08);color:var(--rl-green-900)!important}
.rl-btn--ghost-light{background:transparent;border-color:rgba(215,228,220,.55);color:var(--rl-dark-text)!important}
.rl-btn--ghost-light:hover{background:rgba(215,228,220,.12);border-color:var(--rl-dark-text);color:#fff!important}
.rl-btn--text{background:none;border:none;padding:6px 0;color:var(--rl-green-900)!important;text-decoration:underline!important;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--rl-green-900)}
.rl-btn--text:hover{text-decoration-color:var(--rl-orange)!important;color:var(--rl-orange-dark)!important}
.rl-btn[disabled],.rl-btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none!important}

/* ============ 徽章 / 标签 ============ */
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1.6}
.tag--cat{background:rgba(14,59,46,.08);color:var(--rl-green-900)}
.tag--hot{background:var(--rl-orange);color:#fff}
.tag--lime{border:1px solid var(--rl-lime);color:var(--rl-green-900);background:rgba(200,240,79,.18)}
.status-tag{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--rl-muted);padding:6px 12px;border:1px solid var(--rl-border);border-radius:var(--r-pill);background:#fff}
.status-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--rl-lime);box-shadow:0 0 0 3px rgba(200,240,79,.28);flex:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--rl-green-900);
  border-bottom:1px solid var(--rl-border-dark);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.is-compact{background:rgba(14,59,46,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 10px 26px -20px rgba(0,0,0,.9)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .2s ease-out}
.site-header.is-compact .header-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none!important;flex:none}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:none;
  background:
    radial-gradient(circle at 30% 28%,var(--rl-lime) 0 3px,transparent 3.5px),
    linear-gradient(135deg,var(--rl-orange) 0 46%,#ffffff 46% 54%,var(--rl-green-700) 54% 100%);
  border:1px solid rgba(215,228,220,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.08}
.brand-text b{font-size:16px;color:#fff;font-weight:800;letter-spacing:.01em}
.brand-text i{font-size:11px;font-style:normal;color:var(--rl-dark-muted);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:64px;
  font-size:15px;color:rgba(215,228,220,.82);text-decoration:none!important;transition:color .18s ease-out;
}
.site-header.is-compact .main-nav a{height:56px}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:transparent;border-radius:2px;transition:background .18s ease-out}
.main-nav a:hover{color:#fff}
.main-nav a.active{color:#fff;font-weight:700}
.main-nav a.active::after{background:var(--rl-orange)}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.header-right .status-tag{background:rgba(215,228,220,.08);border-color:var(--rl-border-dark);color:var(--rl-dark-muted)}
.countdown-badge{
  display:inline-flex;align-items:center;gap:9px;padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(200,240,79,.10);border:1px solid rgba(200,240,79,.35);
}
.countdown-badge .cd-label{font-size:12px;color:var(--rl-dark-muted)}
.countdown-badge .cd-num{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--rl-lime);letter-spacing:.04em}
.nav-toggle{
  margin-left:auto;width:46px;height:46px;border-radius:10px;background:transparent;
  border:1px solid var(--rl-border-dark);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--rl-dark-text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{display:none;border-top:1px solid var(--rl-border-dark);background:var(--rl-green-900);padding:10px 0 18px}
.mobile-drawer.is-open{display:block}
.mobile-nav{display:flex;flex-direction:column}
.mobile-nav a{color:var(--rl-dark-text);padding:14px 2px;border-bottom:1px solid rgba(34,70,59,.7);text-decoration:none!important;font-size:16px;min-height:48px;display:flex;align-items:center}
.mobile-nav a.active{color:#fff;font-weight:700;border-left:3px solid var(--rl-orange);padding-left:12px}
.mobile-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:18px}
.mobile-foot .rl-btn{flex:1 1 160px}
@media(max-width:991px){
  .main-nav,.header-right{display:none}
}

/* ============ 页头（深色）============ */
.page-hero{
  position:relative;background:var(--rl-dark);color:var(--rl-dark-text);
  padding:64px 0 72px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,rgba(242,84,27,.18) 0 12%,transparent 12.5% 100%);
}
.page-hero .rl-container{position:relative;z-index:2}
.crumb{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 24px;font-size:13px;color:var(--rl-dark-muted)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--rl-border-dark)}
.crumb a{color:var(--rl-dark-muted);text-decoration:none!important}
.crumb a:hover{color:var(--rl-lime)}
.crumb li[aria-current]{color:var(--rl-dark-text)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.page-hero h1{color:#fff;margin-bottom:16px;max-width:14em}
.page-hero .hero-sub{font-size:17px;color:var(--rl-dark-text);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--rl-border-dark)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual-mask{position:absolute;inset:0;background:rgba(14,59,46,.82)}
.hero-chip{
  position:absolute;left:16px;bottom:16px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(14,31,26,.72);border:1px solid rgba(200,240,79,.4);
  font-size:13px;color:var(--rl-lime);font-family:var(--f-mono);
}
.stat-bar{
  margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--rl-border-dark);
}
.stat-bar .stat{padding:22px 20px 4px;border-right:1px solid var(--rl-border-dark)}
.stat-bar .stat:last-child{border-right:none}
.stat .val{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-size:32px;font-weight:800;color:#fff;line-height:1.1}
.stat .val em{font-size:15px;font-style:normal;color:var(--rl-lime);margin-left:3px;font-weight:600}
.stat .lab{display:block;margin-top:6px;font-size:13px;color:var(--rl-dark-muted)}

/* ============ 数据条（浅底 4 格）============ */
.value-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--rl-border);border-radius:14px;overflow:hidden;box-shadow:var(--sd-1)}
.value-strip .cell{padding:26px 22px;border-right:1px solid var(--rl-border)}
.value-strip .cell:last-child{border-right:none}
.value-strip .val{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-size:32px;font-weight:800;color:var(--rl-green-900);line-height:1.1}
.value-strip .lab{font-size:14px;font-weight:600;color:var(--rl-text);margin-top:6px}
.value-strip .note{font-size:12.5px;color:var(--rl-muted);line-height:1.6}

/* ============ 图文交替 ============ */
.zigzag{display:flex;flex-direction:column;gap:72px}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.zig-row.is-rev .zig-media{order:2}
.zig-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--rl-border);box-shadow:var(--sd-1);aspect-ratio:16/10;background:var(--rl-bg-alt)}
.zig-media img{width:100%;height:100%;object-fit:cover}
.zig-body h3{margin-bottom:12px}
.zig-body h3 span{display:block;font-size:13px;font-family:var(--f-mono);color:var(--rl-orange);letter-spacing:.08em;margin-bottom:8px;font-weight:700}
.zig-body p{color:var(--rl-muted)}
.data-list{margin:22px 0 0;padding:0;list-style:none;border-top:1px solid var(--rl-border)}
.data-list li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 2px;border-bottom:1px solid var(--rl-border);font-size:14px}
.data-list .k{color:var(--rl-muted)}
.data-list .v{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-weight:700;color:var(--rl-green-900);font-size:15px}
@media(max-width:767px){
  .zig-ram{display:none}
}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rl-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--rl-border);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sd-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rl-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:#DAD3C4}
.rl-card .tag{align-self:flex-start;margin-bottom:14px}
.rl-card h3{font-size:18px;line-height:1.45;margin-bottom:10px}
.rl-card p{font-size:14.5px;color:var(--rl-muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rl-card .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--rl-border)}
.rl-card .card-foot .meta{font-family:var(--f-mono);font-size:12.5px;color:var(--rl-muted)}
.rl-card .card-foot a{font-size:14px;font-weight:600;text-decoration:none!important;display:inline-flex;align-items:center;gap:6px}
.rl-card .card-foot a i{transition:transform .18s ease-out}
.rl-card .card-foot a:hover i{transform:translateX(3px)}
.rl-card--strip{border-left:3px solid var(--rl-orange)}

/* ============ 深色运行环境 ============ */
.dark-block{background:var(--rl-dark);color:var(--rl-dark-text);padding:88px 0;border-top:1px solid var(--rl-border-dark)}
.dark-block h2{color:#fff}
.dark-block .sec-head h2::before{background:var(--rl-orange)}
.dark-block .sec-head p{color:var(--rl-dark-muted)}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.req-col{border:1px solid var(--rl-border-dark);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.02)}
.req-col .req-title{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--rl-border-dark);font-weight:700;color:#fff;background:rgba(20,81,61,.5)}
.req-col .req-title i{color:var(--rl-lime)}
.req-list{margin:0;padding:0}
.req-list div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 20px;min-height:44px;font-size:14px}
.req-list div:nth-child(odd){background:rgba(255,255,255,.03)}
.req-list dt{color:var(--rl-dark-muted);margin:0;font-weight:400}
.req-list dd{margin:0;font-family:var(--f-mono);font-variant-numeric:tabular-nums;color:#fff;font-size:14px}
.req-tip{margin-top:26px;font-size:13.5px;color:var(--rl-dark-muted)}

/* ============ 规格表（浅底斑马纹）============ */
.spec-table{border:1px solid var(--rl-border);border-radius:14px;overflow:hidden;background:#fff}
.spec-table .row-line{display:grid;grid-template-columns:1.2fr 1fr 1.4fr;gap:16px;padding:14px 20px;font-size:14.5px;align-items:center}
.spec-table .row-line:nth-child(even){background:rgba(14,31,26,.03)}
.spec-table .head{background:rgba(14,59,46,.06);font-weight:700;color:var(--rl-green-900);font-size:13.5px;letter-spacing:.02em}
.spec-table .cell-mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums;color:var(--rl-green-900);font-weight:600}
.spec-table .cell-note{color:var(--rl-muted)}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-wrap .accordion-item{background:transparent;border:none;margin-bottom:12px}
.faq-wrap .accordion-button{
  width:100%;background:#fff;border:1px solid var(--rl-border);border-radius:12px!important;
  padding:18px 54px 18px 20px;font-size:17px;font-weight:600;color:var(--rl-green-900);
  box-shadow:none;display:flex;align-items:center;gap:12px;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--rl-green-900);background:#fff;border-color:#D9D3C6;box-shadow:var(--sd-1)}
.faq-wrap .accordion-button:focus{box-shadow:0 0 0 3px rgba(242,84,27,.35);border-color:var(--rl-orange)}
.faq-wrap .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px;
  background-image:none;color:var(--rl-orange);width:auto;height:auto;
  position:absolute;right:20px;transition:transform .2s ease-out;transform:none;
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-wrap .accordion-body{
  background:#fff;border:1px solid var(--rl-border);border-left:3px solid var(--rl-orange);
  border-top:none;border-radius:0 0 12px 12px;padding:18px 22px;font-size:16px;line-height:1.8;color:var(--rl-muted);
  margin-top:-6px;
}

/* ============ CTA 条带 ============ */
.cta-band{position:relative;background:var(--rl-green-900);color:#fff;padding:56px 0;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;top:-40%;right:-6%;width:46%;height:220%;
  background:repeating-linear-gradient(115deg,rgba(242,84,27,.9) 0 10px,transparent 10px 34px);
  opacity:.22;transform:skewX(-14deg);pointer-events:none;
}
.cta-band .inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:var(--rl-dark-muted);margin:8px 0 0;font-size:15px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--rl-green-900);color:var(--rl-dark-text);padding:64px 0 26px;border-top:1px solid var(--rl-border-dark)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;color:var(--rl-dark-muted);font-size:14.5px;padding:6px 0;text-decoration:none!important}
.footer-col a:hover{color:#fff;text-decoration:underline!important;text-decoration-color:var(--rl-orange)}
.footer-col a.active{color:#fff;font-weight:600}
.footer-col p{color:var(--rl-dark-muted);font-size:14px;margin:0 0 8px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text i{color:var(--rl-dark-muted)}
.footer-desc{color:var(--rl-dark-muted);font-size:14px;line-height:1.75;margin-bottom:16px!important}
.site-footer .status-tag{background:rgba(215,228,220,.08);border-color:var(--rl-border-dark);color:var(--rl-dark-muted)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--rl-border-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--rl-dark-muted);
}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .card-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:991px){
  .rl-section,.dark-block{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:48px 0 56px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .req-grid{grid-template-columns:1fr 1fr}
  .value-strip{grid-template-columns:repeat(2,1fr)}
  .value-strip .cell:nth-child(2){border-right:none}
  .value-strip .cell:nth-child(1),.value-strip .cell:nth-child(2){border-bottom:1px solid var(--rl-border)}
  .stat-bar{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .stat-bar .stat:nth-child(2){border-right:none}
  .stat-bar .stat:nth-child(1),.stat-bar .stat:nth-child(2){border-bottom:1px solid var(--rl-border-dark)}
  .zig-row{grid-template-columns:1fr;gap:24px}
  .zig-row.is-rev .zig-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:575px){
  body{font-size:16px;line-height:1.75}
  .rl-section,.dark-block{padding:48px 0}
  .rl-section--tight{padding:40px 0}
  .card-grid{grid-template-columns:1fr}
  .req-grid{grid-template-columns:1fr}
  .value-strip{grid-template-columns:1fr}
  .value-strip .cell{border-right:none;border-bottom:1px solid var(--rl-border)}
  .value-strip .cell:last-child{border-bottom:none}
  .stat-bar{grid-template-columns:1fr}
  .stat-bar .stat{border-right:none;border-bottom:1px solid var(--rl-border-dark)}
  .stat-bar .stat:last-child{border-bottom:none}
  .hero-actions .rl-btn{flex:1 1 100%}
  .spec-table .row-line{grid-template-columns:1fr;gap:4px;padding:14px 16px}
  .spec-table .head{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-band .cta-actions .rl-btn{flex:1 1 100%}
}

/* roulang page: category2 */
:root{
  --rl-green:#0E3B2E;
  --rl-green-mid:#14513D;
  --rl-orange:#F2541B;
  --rl-orange-dark:#D8430E;
  --rl-lime:#C8F04F;
  --rl-bg:#F7F5EF;
  --rl-bg-2:#EFEBE1;
  --rl-dark:#0E1F1A;
  --rl-ink:#1D2522;
  --rl-muted:#5B6B64;
  --rl-dt:#D7E4DC;
  --rl-dm:#93A89E;
  --rl-line:#E3DED3;
  --rl-line-dark:#22463B;
  --rl-ok:#17805A;
  --rl-err:#C0392B;
  --rl-r-card:14px;
  --rl-r-img:12px;
  --rl-r-btn:10px;
  --rl-r-pill:999px;
  --rl-sh:0 1px 2px rgba(14,31,26,.06), 0 10px 28px -16px rgba(14,31,26,.20);
  --rl-sh-hover:0 2px 4px rgba(14,31,26,.08), 0 18px 36px -18px rgba(14,31,26,.28);
  --rl-font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --rl-mono:'Inter','DIN Alternate',ui-monospace,Consolas,monospace;
  --bs-primary:#F2541B;
  --bs-body-font-family:var(--rl-font);
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-sm:8px;
  --bs-link-color:#0E3B2E;
  --bs-link-hover-color:#D8430E;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--rl-font);
  font-size:17px;
  line-height:1.85;
  color:var(--rl-ink);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--rl-green);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--rl-green-mid);text-decoration:underline;text-decoration-color:var(--rl-orange);text-underline-offset:3px}
button{font:inherit}
:focus-visible{outline:3px solid rgba(242,84,27,.35);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{color:var(--rl-green);margin:0;letter-spacing:-.01em}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.num{font-family:var(--rl-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* 容器 */
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.rl-container{max-width:1280px}}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--rl-line);
  transition:background .2s ease-out,box-shadow .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);
  box-shadow:0 1px 2px rgba(14,31,26,.07);
}
.header-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height .2s ease-out}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--rl-green);
  position:relative;flex:0 0 auto;overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;left:-6px;top:12px;width:44px;height:6px;
  background:var(--rl-orange);transform:rotate(-32deg);
}
.brand-mark::after{
  content:"";position:absolute;left:-6px;top:22px;width:44px;height:3px;
  background:var(--rl-lime);transform:rotate(-32deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:16px;font-weight:800;color:var(--rl-green);letter-spacing:.01em}
.brand-text i{font-size:11px;font-style:normal;color:var(--rl-muted);letter-spacing:.26em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--rl-ink);
  padding:20px 0;text-decoration:none;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;
  background:transparent;border-radius:2px;transition:background .18s ease-out;
}
.main-nav a:hover{color:var(--rl-green);text-decoration:none}
.main-nav a.active{color:var(--rl-green);font-weight:700}
.main-nav a.active::after{background:var(--rl-orange)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.status-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--rl-r-pill);
  border:1px solid var(--rl-line);background:#fff;
  font-size:12.5px;color:var(--rl-muted);white-space:nowrap;
}
.status-tag .dot{
  width:8px;height:8px;border-radius:50%;background:var(--rl-lime);
  box-shadow:0 0 0 3px rgba(200,240,79,.28);flex:0 0 auto;
}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--rl-line);
  border-radius:var(--rl-r-btn);background:#fff;color:var(--rl-green);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--rl-green);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--rl-green);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 按钮 */
.btn-rl{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--rl-r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.btn-rl:hover{text-decoration:none}
.btn-rl-primary{background:var(--rl-orange);color:#fff}
.btn-rl-primary:hover{background:var(--rl-orange-dark);color:#fff;transform:translateY(-2px)}
.btn-rl-primary:active{transform:translateY(1px)}
.btn-rl-ghost{background:transparent;border-color:var(--rl-green);color:var(--rl-green)}
.btn-rl-ghost:hover{background:rgba(14,59,46,.08);color:var(--rl-green);transform:translateY(-2px)}
.btn-rl-ghost:active{transform:translateY(1px)}
.btn-rl-link{
  display:inline-flex;align-items:center;gap:6px;padding:6px 0;
  color:var(--rl-green);font-weight:600;font-size:15px;
  text-decoration:underline;text-decoration-thickness:3px;text-decoration-color:rgba(14,59,46,.25);
  text-underline-offset:3px;background:none;border:0;cursor:pointer;
}
.btn-rl-link:hover{text-decoration-color:var(--rl-orange);color:var(--rl-green)}

/* 徽章 */
.badge-rl{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--rl-r-pill);
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:rgba(14,59,46,.08);color:var(--rl-green);
}
.badge-rl.is-orange{background:var(--rl-orange);color:#fff}
.badge-rl.is-line{background:transparent;border:1px solid var(--rl-orange);color:var(--rl-orange)}
.badge-rl.is-lime{background:transparent;border:1px solid var(--rl-lime);color:var(--rl-green-mid)}

/* 页头（浅色版） */
.page-head{
  background:var(--rl-bg);
  border-bottom:1px solid var(--rl-line);
  padding:38px 0 0;
}
.breadcrumb-rl ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0 0 22px;padding:0;list-style:none;font-size:13px;color:var(--rl-muted);
}
.breadcrumb-rl li+li::before{content:"/";margin-right:8px;color:var(--rl-line)}
.breadcrumb-rl a{color:var(--rl-muted)}
.breadcrumb-rl a:hover{color:var(--rl-green)}
.breadcrumb-rl [aria-current]{color:var(--rl-green);font-weight:600}
.page-head-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--rl-green-mid);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--rl-orange);border-radius:2px}
.page-head h1{
  font-size:clamp(28px,4.2vw,42px);line-height:1.24;font-weight:800;margin-bottom:18px;
}
.lead{font-size:17px;color:var(--rl-muted);max-width:60ch;margin-bottom:26px}
.head-actions{display:flex;flex-wrap:wrap;gap:14px}
.page-head-media{
  border-radius:16px;overflow:hidden;border:1px solid var(--rl-line);
  box-shadow:var(--rl-sh);background:#fff;
}
.page-head-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:38px;padding:14px 0 16px;border-top:1px solid var(--rl-line);
}
.anchor-nav a{
  display:inline-flex;align-items:center;min-height:42px;padding:8px 20px;
  border-radius:var(--rl-r-pill);border:1px solid var(--rl-line);background:#fff;
  font-size:14.5px;font-weight:600;color:var(--rl-green-mid);text-decoration:none;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.anchor-nav a:hover{background:rgba(14,59,46,.06);text-decoration:none;border-color:var(--rl-green-mid)}
.anchor-nav a.active{background:var(--rl-green);border-color:var(--rl-green);color:#fff}

/* 通用板块 */
.section{padding:88px 0}
.section.is-alt{background:var(--rl-bg-2);border-top:1px solid var(--rl-line);border-bottom:1px solid var(--rl-line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  position:relative;font-size:clamp(23px,2.7vw,32px);line-height:1.3;font-weight:800;
  padding-left:16px;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--rl-orange);border-radius:3px;
}
.section-head p{color:var(--rl-muted);margin:0}
.section-head.is-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* 数据条 */
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-r-card);
  box-shadow:var(--rl-sh);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--rl-line)}
.metric:last-child{border-right:0}
.metric .val{
  font-family:var(--rl-mono);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:700;color:var(--rl-green);line-height:1.1;
}
.metric .val small{font-size:15px;font-weight:600;margin-left:4px;color:var(--rl-green-mid)}
.metric .lab{font-size:14px;font-weight:700;color:var(--rl-ink);margin-top:10px}
.metric .desc{font-size:13px;color:var(--rl-muted);line-height:1.6;margin-top:4px}

/* 时间轴 */
.step-list{position:relative;max-width:860px}
.step-item{position:relative;padding:0 0 42px 66px}
.step-item::before{
  content:"";position:absolute;left:13px;top:32px;bottom:0;width:2px;
  background:rgba(14,59,46,.22);
}
.step-item:last-child{padding-bottom:0}
.step-item:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--rl-orange);color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--rl-mono);font-size:14px;font-weight:700;
  box-shadow:0 0 0 4px rgba(242,84,27,.12);
}
.step-item h3{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:8px}
.step-item p{color:var(--rl-muted);font-size:16px;line-height:1.8;margin-bottom:0}
.step-figure{
  margin-top:18px;border-radius:var(--rl-r-img);overflow:hidden;
  border:1px solid var(--rl-line);background:#fff;box-shadow:var(--rl-sh);max-width:520px;
}
.step-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.step-figure figcaption{font-size:13px;color:var(--rl-muted);padding:10px 14px;border-top:1px solid var(--rl-line)}
.step-meta{
  display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:14px;
  font-family:var(--rl-mono);font-size:13px;color:var(--rl-muted);
}
.step-meta span b{color:var(--rl-green);font-weight:700}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  position:relative;background:#fff;border:1px solid var(--rl-line);
  border-radius:var(--rl-r-card);padding:24px 24px 22px;
  box-shadow:var(--rl-sh);border-left:3px solid var(--rl-orange);
  display:flex;flex-direction:column;min-height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--rl-sh-hover)}
.info-card h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.45}
.info-card p{font-size:15px;color:var(--rl-muted);line-height:1.75;margin-bottom:16px}
.info-card .card-foot{margin-top:auto}
.info-card .card-foot a{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  text-decoration:none;color:var(--rl-green);
}
.info-card .card-foot a::after{content:"→";transition:transform .18s ease-out}
.info-card .card-foot a:hover{text-decoration:none;color:var(--rl-orange-dark)}
.info-card .card-foot a:hover::after{transform:translateX(3px)}

/* 系统要求 */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.spec-card{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-r-card);
  overflow:hidden;box-shadow:var(--rl-sh);
}
.spec-card-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 22px;border-bottom:1px solid var(--rl-line);background:#fff;
}
.spec-card-head h3{font-size:17px;font-weight:700}
.spec-list{margin:0}
.spec-row{
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:16px;
  min-height:44px;padding:8px 22px;
  border-bottom:1px solid rgba(14,31,26,.06);
}
.spec-row:nth-child(odd){background:rgba(14,31,26,.03)}
.spec-row:last-child{border-bottom:0}
.spec-row dt{font-size:14px;color:var(--rl-muted);font-weight:400}
.spec-row dd{
  margin:0;font-family:var(--rl-mono);font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:600;color:var(--rl-green);text-align:right;
}
.spec-note{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:12px 26px;
  font-size:13.5px;color:var(--rl-muted);
}
.spec-note b{color:var(--rl-green);font-family:var(--rl-mono);font-weight:700}

/* 折叠面板 */
.faq-wrap{max-width:900px}
.accordion-rl .accordion-item{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-r-card);
  margin-bottom:14px;overflow:hidden;box-shadow:0 1px 2px rgba(14,31,26,.05);
}
.accordion-rl .accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:#fff;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--rl-ink);line-height:1.6;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out;
}
.accordion-rl .accordion-button:hover{background:rgba(14,59,46,.04);color:var(--rl-green)}
.accordion-rl .accordion-button::after{
  content:"";flex:0 0 auto;width:16px;height:16px;position:relative;
  transition:transform .22s ease-out;
  background:
    linear-gradient(var(--rl-green-mid),var(--rl-green-mid)) center/16px 2px no-repeat,
    linear-gradient(var(--rl-green-mid),var(--rl-green-mid)) center/2px 16px no-repeat;
}
.accordion-rl .accordion-button[aria-expanded="true"]{color:var(--rl-green);background:rgba(14,59,46,.04)}
.accordion-rl .accordion-button[aria-expanded="true"]::after{
  transform:rotate(45deg);
  background:
    linear-gradient(var(--rl-orange),var(--rl-orange)) center/16px 2px no-repeat,
    linear-gradient(var(--rl-orange),var(--rl-orange)) center/2px 16px no-repeat;
}
.accordion-rl .accordion-body{
  padding:6px 24px 22px 27px;border-left:3px solid var(--rl-orange);
  background:rgba(239,235,225,.55);
  font-size:16px;line-height:1.8;color:var(--rl-ink);
}
.accordion-rl .accordion-body p{margin-bottom:10px}
.accordion-rl .accordion-body p:last-child{margin-bottom:0}

/* 下载按钮组 */
.download-block{
  background:#fff;border:1px solid var(--rl-line);border-radius:var(--rl-r-card);
  padding:30px;box-shadow:var(--rl-sh);
}
.download-title{font-size:19px;font-weight:700;margin-bottom:6px}
.download-sub{font-size:14.5px;color:var(--rl-muted);margin-bottom:22px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dl-btn{
  display:flex;align-items:center;gap:14px;padding:16px 18px;
  border:1.5px solid var(--rl-line);border-radius:var(--rl-r-btn);background:#fff;
  text-decoration:none;color:var(--rl-ink);min-height:44px;
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.dl-btn:hover{border-color:var(--rl-orange);transform:translateY(-2px);box-shadow:var(--rl-sh-hover);text-decoration:none;color:var(--rl-ink)}
.dl-icon{
  width:38px;height:38px;border-radius:10px;background:rgba(14,59,46,.08);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  font-family:var(--rl-mono);font-size:12px;font-weight:700;color:var(--rl-green);
}
.dl-btn .dl-name{font-size:15px;font-weight:700;color:var(--rl-green);line-height:1.35}
.dl-btn .dl-ver{font-family:var(--rl-mono);font-size:12.5px;color:var(--rl-muted);margin-top:2px}
.dl-hint{margin-top:16px;font-size:13px;color:var(--rl-muted);font-family:var(--rl-mono)}

/* CTA 条带 */
.cta-band{
  position:relative;border-radius:var(--rl-r-card);overflow:hidden;
  background-image:linear-gradient(96deg,rgba(14,31,26,.94),rgba(14,59,46,.9)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-60px;width:320px;height:220px;
  background:repeating-linear-gradient(115deg,rgba(242,84,27,.42) 0 10px,transparent 10px 28px);
  transform:rotate(-6deg);pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:1}
.cta-band h3{color:#fff;font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;margin-bottom:8px}
.cta-band p{color:var(--rl-dt);font-size:15px;margin:0;max-width:52ch}
.cta-band .cta-btn{position:relative;z-index:1;flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--rl-dark);color:var(--rl-dt);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-col a{display:block;color:var(--rl-dt);font-size:14.5px;padding:6px 0;text-decoration:none;line-height:1.7}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--rl-orange);text-underline-offset:3px}
.footer-col a.active{color:var(--rl-lime);font-weight:600}
.footer-col p{color:var(--rl-dm);font-size:14px;line-height:1.8;margin:0 0 8px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text b{color:#fff}
.footer-brand .brand-text i{color:var(--rl-dm)}
.footer-desc{color:var(--rl-dm);font-size:14.5px;line-height:1.8;max-width:34ch;margin-bottom:16px}
.site-footer .status-tag{background:rgba(255,255,255,.06);border-color:var(--rl-line-dark);color:var(--rl-dt)}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--rl-line-dark);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--rl-dm);
}

/* offcanvas */
.rl-offcanvas{background:var(--rl-bg);width:min(88vw,360px)}
.rl-offcanvas .offcanvas-header{border-bottom:1px solid var(--rl-line);padding:18px 22px}
.rl-offcanvas .offcanvas-body{padding:18px 22px 26px;display:flex;flex-direction:column;gap:8px}
.rl-offcanvas .offcanvas-body>a{
  display:flex;align-items:center;min-height:48px;padding:10px 14px;border-radius:10px;
  font-size:15.5px;font-weight:600;color:var(--rl-ink);text-decoration:none;
  border:1px solid transparent;
}
.rl-offcanvas .offcanvas-body>a:hover{background:rgba(14,59,46,.05);text-decoration:none}
.rl-offcanvas .offcanvas-body>a.active{background:#fff;border-color:var(--rl-line);color:var(--rl-green)}
.offcanvas-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--rl-line);display:flex;flex-direction:column;gap:14px}

/* 响应式 */
@media (max-width:1199.98px){
  .section{padding:72px 0}
  .card-grid{gap:20px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .status-tag{display:none}
  .page-head-grid{grid-template-columns:1fr;gap:30px}
  .page-head-media{order:-1}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--rl-line)}
  .spec-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.75}
  .section{padding:56px 0}
  .rl-container{padding:0 18px}
  .page-head{padding-top:26px}
  .head-actions .btn-rl{flex:1 1 100%}
  .anchor-nav{gap:8px}
  .anchor-nav a{padding:8px 16px;font-size:14px}
  .card-grid{grid-template-columns:1fr}
  .metric{padding:20px 18px}
  .download-block{padding:22px}
  .cta-band{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .step-item{padding-left:56px}
  .accordion-rl .accordion-button{font-size:16px;padding:17px 18px}
  .accordion-rl .accordion-body{padding:4px 18px 18px 21px}
}
@media (max-width:575.98px){
  .metric-bar{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--rl-line)}
  .step-item{padding-left:48px;padding-bottom:34px}
  .step-num{width:26px;height:26px;font-size:13px}
  .step-item::before{left:12px}
}