/* roulang page: index */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
  --container:1200px;
  --sec-y:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  font-weight:400;
}
h1,h2,h3,h4,h5,h6,p,figure,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
dl{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{letter-spacing:-.01em;font-weight:800;line-height:1.25}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:20px;font-weight:700;line-height:1.4}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);background:var(--c-accent-soft);border-radius:var(--r-pill);padding:5px 12px;margin-bottom:14px}
.section-sub{color:var(--c-ink-2);font-size:15px;max-width:560px;line-height:1.75}
.badge{display:inline-block;font-size:12px;letter-spacing:.04em;font-weight:700;padding:4px 10px;border-radius:var(--r-pill);background:var(--c-accent-soft);color:var(--c-primary);line-height:1.6}
.badge-green{background:rgba(22,86,74,.1);color:var(--c-primary-dark)}
.badge-line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 28px;border-radius:var(--r-pill);font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-accent);color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--c-primary);min-height:44px}
.btn-text i{transition:transform .2s ease}
.btn-text:hover i{transform:translateX(2px)}

/* Header */
.site-header{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 20px;height:68px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--c-accent);color:var(--c-primary-dark);display:grid;place-items:center;font-size:15px;font-weight:800;flex:0 0 32px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink)}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;min-height:44px;display:inline-flex;align-items:center}
.nav-link:hover{color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search i{position:absolute;left:14px;font-size:13px;color:var(--c-ink-3);pointer-events:none}
.nav-search input{width:220px;height:42px;border-radius:var(--r-pill);border:1px solid transparent;background:var(--c-neutral);padding:0 16px 0 36px;font-size:14px;color:var(--c-ink);transition:border-color .2s ease,background-color .2s ease}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-search input:focus{outline:none;border-color:var(--c-primary);background:#fff}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center;font-size:17px;color:var(--c-ink)}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* Drawer */
.mobile-drawer{position:fixed;inset:0;z-index:200;background:#fff;padding:22px;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;visibility:hidden}
.mobile-drawer.is-open{transform:none;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line);margin-bottom:8px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--c-line);display:grid;place-items:center;font-size:18px;color:var(--c-ink)}
.drawer-link{display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:500;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
.drawer-link.is-active{color:var(--c-primary);font-weight:700}
.drawer-cta{margin-top:24px}
.drawer-cta .btn{width:100%}
body.no-scroll{overflow:hidden}

/* Breadcrumb */
.breadcrumb{padding:18px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3)}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--c-line)}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current]{color:var(--c-ink-3);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Hero */
.hero{padding:32px 0 64px}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
.hero-copy h1{margin:16px 0 14px}
.hero-sub{font-size:17px;line-height:1.7;color:var(--c-ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line)}
.hero-stats li{flex:1 1 120px;min-width:104px}
.stat-num{display:block;font-size:24px;font-weight:800;color:var(--c-primary);line-height:1.3}
.stat-label{display:block;font-size:13px;color:var(--c-ink-3)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3.2;min-height:320px;box-shadow:var(--sh-3);background:var(--c-primary-dark)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(22,86,74,.82),rgba(22,86,74,.35));pointer-events:none}
.hero-visual-tag{position:absolute;left:22px;bottom:22px;z-index:2;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.94);color:var(--c-ink);font-size:13px;font-weight:700;padding:9px 16px;border-radius:var(--r-pill);box-shadow:var(--sh-2)}
.hero-visual-tag i{color:var(--c-accent)}

/* Value */
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin:0}
.value-grid>.cell{width:auto;padding:0}
.value-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);height:100%;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.value-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(22,86,74,.35)}
.value-icon{width:40px;height:40px;border-radius:12px;border:1.5px solid var(--c-accent);color:var(--c-primary);display:grid;place-items:center;font-size:17px;margin-bottom:16px;background:var(--c-accent-soft)}
.value-item h3{font-size:16px;font-weight:700;margin-bottom:8px}
.value-item p{font-size:13px;line-height:1.7;color:var(--c-ink-2)}

/* Shots */
.shot-wrap{position:relative;padding:0 4px}
.shot-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 14px;scrollbar-width:none}
.shot-track::-webkit-scrollbar{display:none}
.shot{flex:0 0 calc((100% - 72px)/4);scroll-snap-align:start}
.shot-frame{position:relative;border-radius:24px;overflow:hidden;aspect-ratio:3/4;border:1px solid var(--c-line);box-shadow:var(--sh-3);background:var(--c-neutral)}
.shot-frame img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.shot:hover .shot-frame img{transform:scale(1.03)}
.shot-title{font-size:15px;font-weight:700;margin-top:14px}
.shot-desc{font-size:13px;color:var(--c-ink-3);line-height:1.6}
.shot-arrow{position:absolute;top:38%;width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--c-line);box-shadow:var(--sh-2);display:grid;place-items:center;font-size:14px;color:var(--c-ink);z-index:3;transition:background-color .2s ease,color .2s ease,transform .2s ease}
.shot-arrow:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-1px)}
.shot-prev{left:-12px}
.shot-next{right:-12px}
.shot-dots{display:flex;justify-content:center;gap:8px;margin-top:10px}
.shot-dot{width:8px;height:8px;border-radius:var(--r-pill);background:var(--c-line);transition:width .2s ease,background-color .2s ease}
.shot-dot.is-active{width:24px;background:var(--c-accent)}

/* System */
.sys-grid{display:grid;grid-template-columns:1fr;gap:32px;margin:0}
.sys-grid>.cell{width:auto;padding:0}
.sys-cards{display:grid;grid-template-columns:1fr;gap:20px}
.sys-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease}
.sys-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.sys-card::before{content:"";display:block;height:4px;background:var(--c-neutral)}
.sys-card.is-android::before{background:var(--c-accent)}
.sys-card.is-ios::before{background:var(--c-primary)}
.sys-card.is-win::before{background:#A9A297}
.sys-card-body{padding:20px 22px}
.sys-card-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.sys-card-head i{font-size:18px;color:var(--c-primary)}
.sys-card-head h3{font-size:17px;font-weight:700}
.sys-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--c-line)}
.sys-row:last-child{border-bottom:0}
.sys-row dt{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em;flex:0 0 auto}
.sys-row dd{font-size:14px;color:var(--c-ink);text-align:right}
.steps-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1)}
.steps-panel h3{font-size:18px;margin-bottom:18px}
.steps li{display:flex;gap:16px;padding-bottom:22px}
.steps li:last-child{padding-bottom:0}
.step-num{flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--c-accent);color:var(--c-ink);display:grid;place-items:center;font-size:13px;font-weight:800}
.step-body h4{font-size:16px;font-weight:700;margin-bottom:4px}
.step-body p{font-size:13px;line-height:1.7;color:var(--c-ink-2)}

/* Reviews */
.review-grid{display:grid;grid-template-columns:1fr;gap:24px}
.review-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;height:100%}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-size:15px;font-weight:700;color:#fff;background:var(--c-primary);flex:0 0 40px}
.avatar.gold{background:var(--c-accent);color:var(--c-primary-dark)}
.avatar.slate{background:#6E7A72}
.review-name{font-size:14px;font-weight:700}
.stars{color:var(--c-accent);font-size:12px;letter-spacing:2px;line-height:1.4}
.review-text{font-size:14px;line-height:1.8;color:var(--c-ink-2)}
.review-time{font-size:12px;color:var(--c-ink-3);margin-top:14px}

/* CTA */
.cta-band{background:linear-gradient(135deg,#0F3A32,#16564A);border-radius:var(--r-lg);padding:48px;color:#fff;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:rgba(233,239,236,.82);font-size:15px;margin-top:10px;max-width:460px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.dl-pill{display:inline-flex;align-items:center;gap:12px;padding:12px 24px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);color:#fff;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;min-height:56px}
.dl-pill i{font-size:22px}
.dl-pill .dl-top{display:block;font-size:15px;font-weight:700;line-height:1.3}
.dl-pill .dl-sub{display:block;font-size:12px;opacity:.75;line-height:1.4}
.dl-pill:hover{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink);transform:translateY(-1px)}
.cta-note{grid-column:1/-1;font-size:12px;color:rgba(233,239,236,.65);border-top:1px solid rgba(255,255,255,.16);padding-top:16px;margin-top:4px}

/* News */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px}
.news-feature{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;height:100%}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-neutral)}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-feature:hover .news-feature-media img{transform:scale(1.03)}
.news-feature-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-feature-body h3{font-size:20px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--c-ink-3)}
.meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line)}
.news-list{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);height:100%}
.news-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--c-line);transition:background-color .2s ease}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:var(--c-accent-soft)}
.news-row h3{font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.news-row time{font-size:12px;color:var(--c-ink-3);white-space:nowrap}
.news-empty{border:1px dashed var(--c-line);border-radius:var(--r-md);padding:56px 24px;text-align:center;background:var(--c-surface);color:var(--c-ink-3)}
.news-empty i{font-size:26px;display:block;margin-bottom:12px;color:var(--c-line)}
.news-empty p{font-size:14px}

/* FAQ */
.faq{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item+.faq-item{border-top:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:12px 24px;text-align:left;font-size:16px;font-weight:700;color:var(--c-ink)}
.faq-q:hover{color:var(--c-primary)}
.faq-q .faq-icon{flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;color:var(--c-primary);transition:transform .25s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 24px 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2)}

/* Footer */
.site-footer{background:var(--c-primary-dark);color:#E9EFEC;padding:56px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(233,239,236,.7)}
.footer-desc{font-size:13px;line-height:1.8;color:rgba(233,239,236,.75);max-width:320px}
.footer-full{display:block;font-size:12px;color:rgba(233,239,236,.55);margin-top:14px;letter-spacing:.02em}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(233,239,236,.78);display:inline-flex;align-items:center;min-height:28px}
.footer-links a:hover{color:var(--c-accent)}
.footer-info p{font-size:13px;line-height:1.9;color:rgba(233,239,236,.75)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:44px;padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(233,239,236,.65)}
.footer-bottom span{min-width:0}

@media (min-width:576px){
  .sys-cards{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:768px){
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .review-card:nth-child(2n){transform:translateY(24px)}
  .review-card:nth-child(2n):hover{transform:translateY(22px)}
  .cta-band{grid-template-columns:1.1fr 1fr;padding:48px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .hero-visual{min-height:420px}
}
@media (min-width:992px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:48px}
  .hero{padding:40px 0 72px}
  .value-grid{grid-template-columns:repeat(4,1fr)}
  .sys-grid{grid-template-columns:1.25fr 1fr}
  .sys-cards{grid-template-columns:1fr}
  .news-grid{grid-template-columns:5fr 7fr}
  .review-grid{grid-template-columns:repeat(3,1fr)}
  .review-card:nth-child(2n){transform:none}
  .review-card:nth-child(3n+2){transform:translateY(24px)}
  .review-card:nth-child(3n+2):hover{transform:translateY(22px)}
  .shot-prev{left:-12px}
  .shot-next{right:-12px}
}
@media (max-width:991px){
  .nav-search{display:none}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-right{gap:10px}
  .shot-arrow{display:none}
  .shot{flex:0 0 calc((100% - 24px)/2)}
}
@media (max-width:767px){
  :root{--sec-y:56px}
  .nav-search{display:none}
  .header-cta{display:none}
  .hero-actions .btn{width:100%}
  .hero-stats li{flex:1 1 40%}
  .shot{flex:0 0 78%}
  .cta-band{padding:32px 24px}
  .cta-actions .dl-pill{width:100%;justify-content:center}
  .news-row{grid-template-columns:1fr auto;grid-template-areas:"badge time" "title title";row-gap:6px}
  .news-row .badge{grid-area:badge}
  .news-row h3{grid-area:title}
  .news-row time{grid-area:time}
}
@media (max-width:575px){
  :root{--sec-y:44px}
  .header-inner{height:60px;padding:0 16px;gap:12px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
  .value-grid{grid-template-columns:1fr}
  .value-grid>.cell{width:auto}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .hero-stats li{flex:1 1 100%}
  .faq-q{padding:12px 18px;font-size:15px}
  .faq-a p{padding:0 18px 16px}
  .footer-bottom{flex-direction:column}
  .breadcrumb [aria-current]{max-width:52vw}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
  --header-h:68px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
h1,h2,h3,h4{font-family:var(--font-cn);font-weight:800;letter-spacing:-0.01em;color:var(--c-ink);}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;}
input{font-family:inherit;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:var(--header-h);
  display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-accent);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-radius:var(--r-sm);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:9px;height:2px;
  border-radius:2px;background:transparent;transition:background .2s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;}
.nav-link.is-active::after{background:var(--c-primary);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:var(--c-neutral);border:1px solid transparent;
  border-radius:var(--r-pill);transition:border-color .2s ease,background .2s ease;
}
.nav-search i{font-size:13px;color:var(--c-ink-3);}
.nav-search input{width:150px;border:0;background:transparent;font-size:14px;color:var(--c-ink);outline:none;padding:0;}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search:focus-within{border-color:var(--c-primary);background:#fff;}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent{background:var(--c-accent);color:#2A1D05;}
.btn-accent:hover{background:#e3951d;color:#2A1D05;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn-login{min-height:40px;padding:0 22px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--c-line);background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,24,26,.45);
  z-index:80;opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(330px,88vw);
  background:#fff;z-index:90;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  padding:22px 20px 28px;
  overflow-y:auto;
  box-shadow:var(--sh-3);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border-radius:var(--r-sm);color:var(--c-ink-2);font-size:18px;
}
.drawer-close:hover{background:var(--c-neutral);color:var(--c-primary);}
.drawer-nav{display:flex;flex-direction:column;padding:12px 0;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);font-weight:700;}
.drawer-cta{margin-top:auto;padding-top:20px;}
.drawer-cta .btn{width:100%;}
body.no-scroll{overflow:hidden;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:#C9C1B4;}
.breadcrumb .current{color:var(--c-ink-3);max-width:min(440px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章主体 ============ */
.article-section{padding:24px 0 72px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:36px;
  align-items:start;
}
.article-main{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:clamp(22px,3vw,44px);
  box-shadow:var(--sh-1);
}
.article-title{
  font-size:clamp(24px,3vw,34px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:18px;
  overflow-wrap:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--c-ink-3);
  padding-bottom:22px;margin-bottom:28px;
  border-bottom:1px solid var(--c-line);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CFC7B8;display:inline-block;}
.badge{
  display:inline-flex;align-items:center;
  min-height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-accent-soft);
  color:var(--c-primary);
  font-size:12px;font-weight:700;letter-spacing:.04em;
}
.badge-green{background:rgba(22,86,74,.10);color:var(--c-primary-dark);}

/* 正文排版 */
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.9;
  color:var(--c-ink);
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body > * + *{margin-top:24px;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);
  line-height:1.35;font-weight:800;
  margin-top:44px;
  padding-left:14px;
  border-left:4px solid var(--c-accent);
}
.article-body h3{font-size:20px;line-height:1.4;font-weight:700;margin-top:34px;}
.article-body h4{font-size:17px;font-weight:700;margin-top:26px;}
.article-body ul,.article-body ol{margin:0;padding-left:24px;line-height:1.9;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li + li{margin-top:8px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:700;}
.article-body img{border-radius:var(--r-md);box-shadow:var(--sh-1);margin:6px 0;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:10px;line-height:1.6;}
.article-body blockquote{
  margin:26px 0;
  border-left:3px solid var(--c-accent);
  background:var(--c-accent-soft);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:18px 20px;
  color:var(--c-ink-2);
  font-size:15px;
  line-height:1.85;
}
.article-body table{
  display:block;overflow-x:auto;max-width:100%;
  border-collapse:collapse;font-size:14px;line-height:1.7;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:var(--c-neutral);font-weight:700;}
.article-body pre{
  background:#14181A;color:#E9EFEC;border-radius:var(--r-md);
  padding:18px 20px;overflow-x:auto;font-size:13px;line-height:1.7;
}
.article-body code{background:var(--c-neutral);border-radius:4px;padding:2px 6px;font-size:14px;}
.article-body pre code{background:transparent;padding:0;color:inherit;}

/* 标签与返回 */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:38px;padding-top:24px;
  border-top:1px solid var(--c-line);
}
.tags-label{font-size:13px;color:var(--c-ink-3);font-weight:500;letter-spacing:.04em;}
.tag-pill{
  display:inline-flex;align-items:center;
  min-height:32px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--c-neutral);
  color:var(--c-ink-2);
  font-size:13px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.tag-pill:hover{background:var(--c-accent-soft);color:var(--c-primary);}
.article-footbar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-top:28px;
}
.back-hint{font-size:13px;color:var(--c-ink-3);}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;
  border:1px dashed #D8D0C2;border-radius:var(--r-md);
  background:var(--c-bg);
}
.empty-state i{font-size:30px;color:#C9C1B4;display:block;margin-bottom:14px;}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:20px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:calc(var(--header-h) + 20px);}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
}
.side-card + .side-card{margin-top:20px;}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:800;letter-spacing:.02em;
  color:var(--c-ink);margin-bottom:14px;
}
.side-title::before{content:"";width:6px;height:16px;border-radius:3px;background:var(--c-accent);flex:0 0 auto;}
.toc-list{max-height:52vh;overflow-y:auto;margin:0;padding:0;list-style:none;}
.toc-list a{
  display:block;
  padding:7px 8px 7px 14px;
  border-left:2px solid var(--c-line);
  font-size:14px;line-height:1.55;color:var(--c-ink-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc-list a:hover{color:var(--c-primary);border-left-color:var(--c-accent);}
.toc-list a.is-current{
  color:var(--c-primary);font-weight:700;
  border-left-color:var(--c-accent);
  background:linear-gradient(90deg,rgba(240,163,44,.12),rgba(240,163,44,0));
}
.toc-item.level-3 a{padding-left:26px;font-size:13px;}
.side-download{
  background:linear-gradient(135deg,#16564A 0%,#0F3A32 100%);
  border:0;color:#E9EFEC;
}
.side-download .side-title{color:#fff;}
.side-download .side-title::before{background:var(--c-accent);}
.side-download p{font-size:13px;line-height:1.7;color:rgba(233,239,236,.78);margin-bottom:16px;}
.dl-pill{
  display:flex;align-items:center;gap:12px;
  width:100%;padding:12px 16px;min-height:56px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;
  transition:background .2s ease,transform .2s ease;
}
.dl-pill:hover{background:rgba(255,255,255,.20);color:#fff;transform:translateY(-1px);}
.dl-pill i{font-size:20px;color:var(--c-accent);}
.dl-pill + .dl-pill{margin-top:10px;}
.dl-name{display:block;font-size:15px;font-weight:700;line-height:1.3;}
.dl-meta{display:block;font-size:12px;opacity:.75;line-height:1.4;}
.side-note{font-size:12px;color:var(--c-ink-3);line-height:1.65;margin-top:12px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;min-height:44px;
  font-size:14px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
}
.side-list li:last-child a{border-bottom:0;}
.side-list a:hover{color:var(--c-primary);}
.side-list i{font-size:12px;color:#C9C1B4;}

/* ============ 相关推荐 ============ */
.related-section{padding:0 0 72px;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:28px;
}
.section-title{font-size:clamp(22px,2.4vw,28px);line-height:1.3;font-weight:800;}
.section-sub{font-size:14px;color:var(--c-ink-2);margin-top:6px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-primary);min-height:44px;}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(2px);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .35s ease,box-shadow .35s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-neutral);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-body .badge{align-self:flex-start;margin-bottom:12px;}
.post-title{font-size:17px;line-height:1.45;font-weight:700;margin-bottom:8px;}
.post-card:hover .post-title{color:var(--c-primary);}
.post-desc{
  font-size:14px;line-height:1.7;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:14px;
}
.post-meta{margin-top:auto;font-size:12px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;}

/* ============ CTA 深色带 ============ */
.cta-section{padding:0 0 80px;}
.cta-band{
  background:linear-gradient(135deg,#16564A 0%,#0F3A32 100%);
  border-radius:var(--r-lg);
  padding:clamp(28px,4vw,48px);
  display:grid;grid-template-columns:1.25fr 1fr;
  gap:32px;align-items:center;
  color:#E9EFEC;
  box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{font-size:14px;line-height:1.8;color:rgba(233,239,236,.80);max-width:520px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .dl-pill{background:rgba(255,255,255,.12);}
.cta-note{font-size:12px;color:rgba(233,239,236,.62);text-align:center;margin-top:4px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary-dark);
  color:#E9EFEC;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(233,239,236,.7);}
.footer-desc{font-size:13px;line-height:1.8;color:rgba(233,239,236,.72);max-width:330px;margin-bottom:14px;}
.footer-full{
  display:inline-block;font-size:12px;letter-spacing:.04em;
  color:rgba(233,239,236,.55);
  border:1px solid rgba(233,239,236,.2);
  border-radius:var(--r-pill);
  padding:5px 14px;
}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a{
  display:inline-flex;align-items:center;min-height:36px;
  font-size:13.5px;color:rgba(233,239,236,.74);
  transition:color .2s ease;
}
.footer-links a:hover{color:var(--c-accent);}
.footer-info p{font-size:13.5px;line-height:1.9;color:rgba(233,239,236,.74);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 28px;
  border-top:1px solid rgba(233,239,236,.16);
  font-size:13px;color:rgba(233,239,236,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-link{padding:0 10px;font-size:14px;}
  .nav-search input{width:110px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:14px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .article-side{position:static;order:-1;}
  .toc-panel .toc-list{max-height:none;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-grid > div:last-child{grid-column:auto;}
}
@media (max-width:767px){
  :root{--header-h:60px;}
  .header-inner{padding:0 16px;}
  .container{padding:0 16px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px;}
  .article-section{padding:20px 0 56px;}
  .related-section{padding:0 0 56px;}
  .cta-section{padding:0 0 60px;}
  .related-grid{grid-template-columns:1fr;}
  .article-meta{gap:10px;font-size:12.5px;}
  .article-title{font-size:clamp(22px,6vw,28px);}
  .article-body{font-size:15.5px;line-height:1.9;}
  .article-tags{gap:8px;}
  .article-footbar{flex-direction:column;align-items:stretch;}
  .article-footbar .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:519px){
  .btn{width:100%;}
  .btn-login{width:auto;}
  .cta-actions .dl-pill{width:100%;}
  .breadcrumb .current{max-width:56vw;}
}

/* roulang page: category1 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;color:var(--c-ink);}
h1{font-size:clamp(28px,3.4vw,42px);line-height:1.2;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
p{line-height:1.75;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section--tight{padding:44px 0;}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;margin-bottom:12px;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head p{margin-top:12px;color:var(--c-ink-2);font-size:15px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-accent);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;line-height:1;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2);}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 13px;
  font-size:15px;color:var(--c-ink-2);
  border-radius:var(--r-sm);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-neutral);}
.nav-link.is-active{color:var(--c-primary);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:6px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{position:relative;width:220px;}
.search-box i{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--c-ink-3);pointer-events:none;
}
.search-box input{
  width:100%;height:40px;
  border-radius:var(--r-pill);
  background:var(--c-neutral);
  border:1px solid transparent;
  padding:0 16px 0 38px;
  font-size:14px;color:var(--c-ink);
  transition:border-color .2s ease,background .2s ease;
}
.search-box input::placeholder{color:var(--c-ink-3);}
.search-box input:focus{outline:none;background:#fff;border-color:var(--c-primary);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:14px;transition:transform .2s ease;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-accent{background:var(--c-accent);color:#1D1503;}
.btn-accent:hover{background:#E2941C;color:#1D1503;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;font-size:14px;font-weight:700;color:var(--c-primary);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover{color:var(--c-primary-dark);}
.btn-link:hover i{transform:translateX(2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn[disabled]{opacity:.5;pointer-events:none;}

/* ---------- Mobile drawer ---------- */
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:#fff;
  padding:20px 20px 32px;
  display:flex;flex-direction:column;
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
  visibility:hidden;
}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:16px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-search{position:relative;margin-bottom:16px;}
.drawer-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--c-ink-3);font-size:13px;}
.drawer-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--c-neutral);border:1px solid transparent;
  padding:0 16px 0 38px;font-size:14px;
}
.drawer-search input:focus{outline:none;background:#fff;border-color:var(--c-primary);}
.drawer-link{
  display:flex;align-items:center;
  min-height:48px;font-size:16px;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-link:hover{color:var(--c-primary);}
.drawer-link.is-active{color:var(--c-primary);font-weight:700;}
.drawer-cta{margin-top:24px;}
.drawer-cta .btn{width:100%;}
body.is-locked{overflow:hidden;}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:20px 0 0;
  font-size:13px;color:var(--c-ink-3);
}
.breadcrumb a{color:var(--c-ink-3);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-ink-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  min-height:260px;
  border-radius:var(--r-lg);
  display:flex;align-items:center;
  margin-top:20px;
  box-shadow:var(--sh-2);
}
.banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.banner-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(15,58,50,.92) 0%,rgba(15,58,50,.55) 100%);
}
.banner-content{position:relative;z-index:1;padding:36px 40px;max-width:760px;}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(240,163,44,.18);
  border:1px solid rgba(240,163,44,.45);
  color:#FFD48B;font-size:12px;font-weight:700;letter-spacing:.04em;
  margin-bottom:16px;
}
.banner-content h1{color:#fff;}
.banner-content p{margin-top:14px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.85);max-width:600px;}

/* ---------- Stats strip ---------- */
.stats-strip{margin-top:-38px;position:relative;z-index:2;}
.stat-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:20px 22px;
  height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D9D2C4;}
.stat-label{font-size:13px;color:var(--c-ink-3);letter-spacing:.04em;}
.stat-value{display:block;margin-top:6px;font-size:22px;font-weight:800;color:var(--c-primary);line-height:1.3;}
.stat-note{margin-top:4px;font-size:13px;color:var(--c-ink-2);}

/* ---------- Feature rows ---------- */
.feature-row{
  padding:56px 0;
  border-bottom:1px solid var(--c-line);
}
.feature-row:last-of-type{border-bottom:0;}
.feature-row.is-reverse .feature-media{order:2;}
.feature-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.feature-no{
  display:inline-block;
  font-size:14px;font-weight:700;letter-spacing:.14em;
  color:var(--c-accent);
  margin-bottom:10px;
}
.feature-body h2{margin-bottom:16px;}
.feature-body p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:16px;}
.feature-body p:last-of-type{margin-bottom:22px;}
.check-list{display:grid;gap:10px;}
.check-list li{
  position:relative;
  padding-left:28px;
  font-size:14.5px;
  color:var(--c-ink);
  line-height:1.7;
}
.check-list li::before{
  content:"\2713";
  position:absolute;left:0;top:1px;
  width:18px;height:18px;border-radius:50%;
  background:var(--c-accent-soft);
  color:var(--c-primary);
  font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- Icon grid ---------- */
.icon-row{row-gap:24px;}
.icon-card{
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.icon-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.icon-box{
  width:44px;height:44px;border-radius:12px;
  background:var(--c-accent-soft);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  margin-bottom:16px;
}
.icon-card h3{font-size:18px;margin-bottom:8px;}
.icon-card p{font-size:13.5px;line-height:1.75;color:var(--c-ink-2);}

/* ---------- FAQ ---------- */
.faq-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;
  background:none;border:0;
  font-size:16px;font-weight:700;color:var(--c-ink);
  text-align:left;cursor:pointer;
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--c-primary);background:#FCFAF6;}
.faq-icon{
  flex-shrink:0;
  width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-accent-soft);color:var(--c-primary);
  font-size:11px;
  transition:transform .3s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{padding:0 24px 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2);}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F3A32 0%,#16564A 100%);
  border-radius:var(--r-lg);
  padding:48px;
  color:#fff;
  box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}
.cta-note{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:.02em;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-primary-dark);
  color:#E9EFEC;
  padding:56px 0 0;
  margin-top:72px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(233,239,236,.66);}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(233,239,236,.72);max-width:280px;}
.footer-full{display:inline-block;margin-top:14px;font-size:12px;letter-spacing:.06em;color:rgba(233,239,236,.5);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links li{margin-bottom:2px;}
.footer-links a{
  display:inline-block;padding:5px 0;
  font-size:14px;color:rgba(233,239,236,.76);
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-info p{font-size:13.5px;line-height:1.85;color:rgba(233,239,236,.72);margin-bottom:6px;}
.footer-bottom{
  margin-top:40px;
  padding:18px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(233,239,236,.55);
}

/* ---------- Foundation overrides ---------- */
.grid-margin-x{margin-left:-12px;margin-right:-12px;row-gap:24px;}
.grid-margin-x > .cell{margin-left:0 !important;margin-right:0 !important;padding-left:12px;padding-right:12px;}
.align-middle{align-items:center;}
.button,.button.primary,.button.secondary{background:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .search-box{width:180px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .header-actions .btn-cta{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:40px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .header-inner{height:60px;gap:12px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10.5px;}
  .page-banner{min-height:0;padding:0;margin-top:16px;}
  .banner-content{padding:32px 24px;}
  .banner-content p{font-size:14px;}
  .stats-strip{margin-top:20px;}
  .feature-row{padding:40px 0;}
  .feature-row.is-reverse .feature-media{order:0;}
  .feature-media{margin-bottom:24px;}
  .cta-band{padding:32px 24px;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:56px;}
}
@media (max-width:575px){
  .section{padding:44px 0;}
  .container{padding:0 16px;}
  .breadcrumb{font-size:12px;}
  .banner-content{padding:28px 20px;}
  .breadcrumb .current{max-width:50%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .faq-q{padding:14px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
  .btn{width:100%;}
  .btn-link{width:auto;}
}

/* roulang page: category3 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;color:var(--c-ink)}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.2}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25}
h3{font-size:20px;line-height:1.4;font-weight:700}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin-bottom:8px}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px}
.grid-x>.cell{padding-left:0;padding-right:0}
.grid-margin-x{margin-left:0;margin-right:0}
.grid-margin-x>.cell{margin-left:0;margin-right:0}
.section{padding:72px 0}
.section-sm{padding:52px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head p{font-size:15px;color:var(--c-ink-2);margin-top:12px;margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--c-primary);background:var(--c-accent-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-accent{background:var(--c-accent);color:#2A1E06}
.btn-accent:hover{background:#E3951C;color:#2A1E06;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--c-ink);border:1px solid var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--c-primary);font-weight:700;font-size:15px;min-height:44px}
.btn-link i{transition:transform .2s ease}
.btn-link:hover i{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 10px;border-radius:var(--r-sm);
  background:var(--c-accent-soft);color:var(--c-primary);
}
.badge-green{background:rgba(22,86,74,.1);color:var(--c-primary-dark)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:70;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;align-items:center;gap:22px;
  height:68px;max-width:1200px;margin:0 auto;padding:0 20px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--c-accent);
  color:var(--c-primary-dark);display:grid;place-items:center;
  font-size:17px;font-weight:800;line-height:1;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-0.01em}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2)}
.main-nav{display:flex;align-items:center;gap:22px}
.nav-link{
  position:relative;font-size:15px;color:var(--c-ink-2);
  padding:22px 0;min-height:44px;display:inline-flex;align-items:center;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:12px;
  height:2px;border-radius:2px;background:var(--c-primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;
  background:var(--c-neutral);border:1px solid transparent;
  border-radius:var(--r-pill);padding:0 14px;transition:.2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary)}
.search-box i{color:var(--c-ink-3);font-size:13px}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-ink-3)}
.header-cta{min-height:44px;padding:0 22px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--c-neutral);color:var(--c-primary);
  align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{background:var(--c-accent-soft)}

/* ===== 移动抽屉 ===== */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:16px 20px 28px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-sm);background:var(--c-neutral);
  display:grid;place-items:center;font-size:18px;color:var(--c-ink);
}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;font-size:16px;
  color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700}
.drawer .btn{margin-top:24px;width:100%}
body.drawer-open{overflow:hidden}

/* ===== 面包屑 ===== */
.crumb{padding:20px 0 0}
.crumb ol{
  list-style:none;display:flex;flex-wrap:wrap;align-items:center;
  gap:8px;margin:0;padding:0;font-size:13px;color:var(--c-ink-3);
}
.crumb li{display:flex;align-items:center;gap:8px;margin:0}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb [aria-current="page"]{color:var(--c-ink-3)}

/* ===== Hero ===== */
.sec-hero{padding:32px 0 64px}
.hero-title{margin-bottom:18px;max-width:15em}
.lede{
  font-size:16px;line-height:1.8;color:var(--c-ink-2);
  max-width:560px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.status-card{
  background:var(--c-primary-dark);
  border-radius:var(--r-lg);padding:28px;color:#E9EFEC;
  box-shadow:var(--sh-3);
  background-image:linear-gradient(135deg,rgba(15,58,50,.94),rgba(15,58,50,.78));
}
.status-card h3{color:#fff;font-size:17px;margin-bottom:6px}
.status-card .sub{font-size:13px;color:rgba(233,239,236,.72);margin-bottom:20px}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-top:1px solid rgba(233,239,236,.16);font-size:14px;
}
.status-row:first-of-type{border-top:0}
.status-row span:first-child{color:rgba(233,239,236,.78)}
.status-row b{font-size:15px;color:var(--c-accent);font-weight:700}
.status-note{
  margin-top:18px;font-size:12px;line-height:1.7;
  color:rgba(233,239,236,.66);
}

/* ===== 图标网格 ===== */
.icon-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sec-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.sec-card:hover{
  border-color:var(--c-primary);transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.icon-box{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;font-size:17px;
  color:var(--c-primary);background:var(--c-accent-soft);
  border:1px solid rgba(240,163,44,.4);
  margin-bottom:16px;
}
.sec-card h3{font-size:18px;margin-bottom:8px}
.sec-card p{font-size:13px;line-height:1.7;color:var(--c-ink-2);margin:0}

/* ===== 两条长说明 ===== */
.split-notes{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.note-col{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);
}
.note-col h3{margin-bottom:14px}
.note-col p{font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.note-col p:last-of-type{margin-bottom:20px}
.tip-bar{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--c-accent-soft);border-left:3px solid var(--c-accent);
  border-radius:var(--r-sm);padding:14px 16px;
  font-size:13px;line-height:1.7;color:var(--c-ink-2);
}
.tip-bar i{color:var(--c-accent);margin-top:3px}
.note-list{list-style:none;padding:0;margin:0 0 20px}
.note-list li{
  position:relative;padding-left:26px;font-size:14px;
  color:var(--c-ink-2);line-height:1.75;margin-bottom:10px;
}
.note-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
}

/* ===== 图文核对区 ===== */
.check-wrap{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.check-media{
  aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);background:var(--c-neutral);
}
.check-media img{width:100%;height:100%;object-fit:cover}
.step-list{list-style:none;padding:0;margin:24px 0 0;counter-reset:step}
.step-list li{
  position:relative;padding-left:56px;margin-bottom:22px;
  counter-increment:step;
}
.step-list li:last-child{margin-bottom:0}
.step-list li::before{
  content:counter(step);
  position:absolute;left:0;top:0;
  width:36px;height:36px;border-radius:50%;
  background:var(--c-accent);color:#2A1E06;
  display:grid;place-items:center;
  font-size:15px;font-weight:800;
}
.step-list h4{font-size:16px;font-weight:700;margin-bottom:6px}
.step-list p{font-size:13px;line-height:1.7;color:var(--c-ink-2);margin:0}

/* ===== FAQ ===== */
.faq-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 24px;font-size:16px;font-weight:700;
  color:var(--c-ink);cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .plus{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--c-accent-soft);color:var(--c-primary);
  display:grid;place-items:center;font-size:12px;
  transition:transform .25s ease,background .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--c-accent);color:#2A1E06}
.faq-answer{padding:0 24px 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2)}
.faq-answer p{margin:0}

/* ===== CTA 带 ===== */
.cta-band{
  background:var(--c-primary-dark);
  background-image:linear-gradient(135deg,rgba(15,58,50,1),rgba(22,86,74,.88));
  border-radius:var(--r-lg);padding:48px;color:#E9EFEC;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;margin-bottom:10px}
.cta-band p{font-size:14px;line-height:1.8;color:rgba(233,239,236,.78);margin:0;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}
.cta-band .btn-ghost{background:transparent;color:#E9EFEC;border-color:rgba(233,239,236,.35)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(233,239,236,.6)}

/* ===== Footer ===== */
.site-footer{background:var(--c-primary-dark);color:#E9EFEC;margin-top:72px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(233,239,236,.7)}
.footer-desc{font-size:13px;line-height:1.8;color:rgba(233,239,236,.72);max-width:300px;margin-bottom:12px}
.footer-full{font-size:12px;letter-spacing:.04em;color:rgba(233,239,236,.5)}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.04em;color:#fff;margin-bottom:14px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13px;color:rgba(233,239,236,.74);display:inline-flex;min-height:24px;align-items:center}
.footer-links a:hover{color:var(--c-accent)}
.footer-info p{font-size:13px;line-height:1.8;color:rgba(233,239,236,.74);margin:0 0 8px}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(233,239,236,.16);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(233,239,236,.6);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .search-box{width:180px}
}
@media (max-width:991px){
  .main-nav,.search-box{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .section{padding:56px 0}
  .sec-hero{padding:24px 0 48px}
  .icon-grid{grid-template-columns:repeat(2,1fr)}
  .split-notes{grid-template-columns:1fr}
  .check-wrap{grid-template-columns:1fr;gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .header-inner{height:60px;gap:12px}
  .brand-name{font-size:16px}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:16px}
  .section{padding:44px 0}
  .section-sm{padding:36px 0}
  .hero-title{max-width:none}
  .icon-grid{grid-template-columns:1fr}
  .note-col{padding:24px}
  .cta-band{padding:28px;border-radius:var(--r-md)}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-answer{padding:0 18px 16px}
  .status-card{padding:22px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .section{padding:40px 0}
  .btn{width:100%}
  .btn-link{width:auto}
  .sec-card{padding:20px}
}

/* roulang page: category2 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
  --container:1200px;
  --header-h:68px;
  --sp-section:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit}
ul,ol{margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;line-height:1.25}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-section) 0}
.section--tight{padding:48px 0}
.section-head{margin-bottom:36px;max-width:720px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-accent-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:14px;
}
.sec-title{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;font-weight:800;color:var(--c-ink);
}
.sec-sub{margin-top:12px;font-size:15px;line-height:1.75;color:var(--c-ink-2)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{text-decoration:none;color:inherit}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-accent);color:var(--c-primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;line-height:1;
  box-shadow:inset 0 -2px 0 rgba(15,58,50,.14);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:-0.01em}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2);letter-spacing:.04em}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-radius:var(--r-sm);
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;
  height:2px;border-radius:2px;background:var(--c-accent);
  opacity:0;transition:opacity .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-neutral);text-decoration:none}
.nav-link:hover::after{opacity:.5}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{opacity:1}

.nav-right{display:flex;align-items:center;gap:12px;margin-left:16px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 16px;
  background:var(--c-neutral);
  border:1px solid transparent;
  border-radius:var(--r-pill);
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);background:var(--c-surface)}
.nav-search i{font-size:13px;color:var(--c-ink-3)}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--c-ink);font-family:inherit;
}
.nav-search input::placeholder{color:var(--c-ink-3)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;
  font-size:15px;font-weight:700;line-height:1;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#FFFFFF}
.btn-primary:hover{background:var(--c-accent);color:var(--c-ink);box-shadow:var(--sh-2)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1)}
.btn-sm{min-height:40px;padding:0 22px;font-size:14px}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--c-neutral);border:1px solid var(--c-line);
  color:var(--c-ink);font-size:17px;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* Mobile drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,24,26,.42);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:95;
  width:min(320px,86vw);height:100%;
  background:var(--c-surface);
  box-shadow:var(--sh-3);
  transform:translateX(101%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
  padding:20px 20px 28px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-sm);
  background:var(--c-neutral);border:1px solid var(--c-line);
  color:var(--c-ink);font-size:18px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  border-radius:var(--r-sm);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--c-neutral);color:var(--c-primary);text-decoration:none;font-weight:700}
.drawer-cta{margin-top:22px}
.drawer-cta .btn{width:100%}

/* ---------- Breadcrumb ---------- */
.crumb{
  padding:22px 0 0;
  font-size:13px;color:var(--c-ink-3);
}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#C3BCB0}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb li[aria-current] span{color:var(--c-ink-3)}

/* ---------- Page hero ---------- */
.page-hero{
  padding:28px 0 56px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 18px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-primary-dark);
}
.badge i{font-size:12px;color:var(--c-accent)}
.badge--green{background:rgba(22,86,74,.09);color:var(--c-primary)}

.page-hero h1{
  font-size:clamp(30px,3.6vw,46px);
  line-height:1.2;font-weight:800;
  letter-spacing:-0.01em;
  max-width:900px;
}
.page-hero-sub{
  margin-top:16px;
  font-size:clamp(15px,1.4vw,17px);
  line-height:1.7;color:var(--c-ink-2);
  max-width:680px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;
}
.stat{
  flex:1 1 180px;min-width:150px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:16px 20px;
}
.stat-num{font-size:24px;font-weight:800;color:var(--c-primary);line-height:1.2}
.stat-num span{font-size:14px;font-weight:700;color:var(--c-ink-2);margin-left:4px}
.stat-label{font-size:13px;color:var(--c-ink-3);margin-top:4px}

/* ---------- Install layout ---------- */
.install-layout{margin-left:-12px;margin-right:-12px}
.install-layout > .cell{padding-left:12px;padding-right:12px}

/* Timeline */
.timeline{list-style:none;position:relative;margin:0;padding:0}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;
  width:2px;border-radius:2px;background:var(--c-line);
}
.tl-item{position:relative;padding-left:72px;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:50%;
  background:var(--c-accent);color:var(--c-primary-dark);
  font-size:16px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 6px var(--c-bg);
  z-index:1;
}
.tl-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D1C4}
.tl-step{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);margin-bottom:8px;
}
.tl-body h3{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:10px}
.tl-body p{font-size:14px;line-height:1.85;color:var(--c-ink-2)}
.tl-list{list-style:none;margin:16px 0 0;display:flex;flex-direction:column;gap:8px}
.tl-list li{
  position:relative;padding-left:22px;
  font-size:13px;line-height:1.7;color:var(--c-ink-2);
}
.tl-list li::before{
  content:"";position:absolute;left:0;top:7px;
  width:8px;height:8px;border-radius:3px;
  background:var(--c-accent-soft);
  border:2px solid var(--c-accent);
}
.tl-shot{
  margin:18px 0 0;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/9;background:var(--c-neutral);
}
.tl-shot img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tl-body:hover .tl-shot img{transform:scale(1.03)}

/* Sticky system card */
.sticky-col{position:sticky;top:calc(var(--header-h) + 24px)}
.sys-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.sys-card-head{padding:20px 22px;border-bottom:1px solid var(--c-line);background:var(--c-bg)}
.sys-card-head h2{font-size:17px;font-weight:800}
.sys-card-head p{margin-top:6px;font-size:13px;color:var(--c-ink-3);line-height:1.6}
.sys-platform{padding:18px 22px;border-bottom:1px solid var(--c-line)}
.sys-platform:last-of-type{border-bottom:0}
.sys-bar{height:4px;border-radius:2px;margin-bottom:14px;background:var(--c-accent)}
.sys-bar.b-2{background:var(--c-primary)}
.sys-bar.b-3{background:#C9C2B6}
.sys-name{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;margin-bottom:12px;
}
.sys-name i{color:var(--c-primary);font-size:15px}
.sys-dl{
  margin:0;
  display:grid;grid-template-columns:auto 1fr;
  column-gap:14px;row-gap:9px;
  align-items:baseline;
}
.sys-dl dt{font-size:12px;color:var(--c-ink-3);letter-spacing:.02em;white-space:nowrap}
.sys-dl dd{margin:0;font-size:14px;color:var(--c-ink);font-weight:500;line-height:1.5}
.sys-note{
  padding:16px 22px;background:var(--c-accent-soft);
  font-size:12px;line-height:1.7;color:#7A5312;
  border-top:1px solid #F3E3C4;
}

/* ---------- Download row ---------- */
.dl-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:36px;
}
.dl-row{display:flex;flex-wrap:wrap;gap:14px}
.dl-pill{
  display:inline-flex;align-items:center;gap:14px;
  min-height:64px;padding:12px 26px;
  background:var(--c-primary-dark);color:#FFFFFF;
  border-radius:var(--r-pill);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.dl-pill:hover{
  background:var(--c-primary);color:#FFFFFF;
  text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);
}
.dl-pill i{font-size:24px;color:var(--c-accent);flex:0 0 auto}
.dl-pill .p1{display:block;font-size:15px;font-weight:700;line-height:1.3}
.dl-pill .p2{display:block;font-size:12px;line-height:1.3;opacity:.75}
.dl-meta{
  margin-top:20px;padding-top:18px;
  border-top:1px solid var(--c-line);
  font-size:12px;color:var(--c-ink-3);line-height:1.8;
}
.dl-meta span{white-space:nowrap}

/* ---------- After install ---------- */
.after-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.after-figure{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:4/3;box-shadow:var(--sh-2);background:var(--c-neutral);
}
.after-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.after-figure:hover img{transform:scale(1.03)}
.after-item{
  display:flex;gap:16px;padding:20px 0;
  border-bottom:1px dashed var(--c-line);
}
.after-item:last-child{border-bottom:0;padding-bottom:0}
.after-ico{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  border:1.5px solid var(--c-accent);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
  background:var(--c-accent-soft);
}
.after-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.after-item p{font-size:13.5px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-list{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 24px;
  background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--c-ink);text-align:left;
  transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--c-bg);color:var(--c-primary)}
.faq-q .faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--c-accent-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .28s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--c-accent);color:var(--c-primary-dark)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  padding:0 24px 20px;
  font-size:14px;line-height:1.85;color:var(--c-ink-2);
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0F3A32 0%,#16564A 100%);
  border-radius:var(--r-lg);
  padding:48px;
  color:#E9EFEC;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
  box-shadow:var(--sh-3);
}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);font-weight:800;color:#FFFFFF;line-height:1.3}
.cta-band p{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(233,239,236,.82);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .dl-pill{background:#FFFFFF;color:var(--c-primary-dark)}
.cta-band .dl-pill:hover{background:var(--c-accent);color:var(--c-ink);box-shadow:var(--sh-2)}
.cta-band .dl-pill i{color:var(--c-accent)}
.cta-band .dl-pill:hover i{color:var(--c-primary-dark)}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-primary-dark);
  color:#E9EFEC;
  padding:64px 0 0;
  margin-top:var(--sp-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark)}
.footer-brand .brand-name{color:#FFFFFF}
.footer-brand .brand-sub{color:rgba(233,239,236,.7)}
.footer-desc{
  margin-top:16px;font-size:13.5px;line-height:1.8;
  color:rgba(233,239,236,.72);max-width:320px;
}
.footer-full{
  display:inline-block;margin-top:14px;
  font-size:12px;letter-spacing:.04em;
  color:rgba(233,239,236,.55);
}
.footer-title{
  font-size:14px;font-weight:700;color:#FFFFFF;
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:13.5px;color:rgba(233,239,236,.75);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--c-accent);text-decoration:none;padding-left:3px}
.footer-info p{
  font-size:13.5px;line-height:1.9;color:rgba(233,239,236,.75);
}
.footer-info p + p{margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(233,239,236,.16);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(233,239,236,.6);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-search{width:180px}
}
@media (max-width:991px){
  :root{--sp-section:56px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-right{margin-left:auto;gap:10px}
  .after-grid{grid-template-columns:1fr;gap:28px}
  .sticky-col{position:static;margin-top:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px}
  .dl-panel{padding:26px}
}
@media (max-width:767px){
  .header-inner{gap:12px;padding:0 18px;height:60px}
  :root{--header-h:60px}
  .container{padding:0 18px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
  .page-hero{padding:18px 0 44px}
  .hero-stats{gap:10px}
  .stat{flex:1 1 100%}
  .tl-item{padding-left:56px;padding-bottom:24px}
  .timeline::before{left:15px}
  .tl-node{width:32px;height:32px;font-size:14px;box-shadow:0 0 0 5px var(--c-bg)}
  .tl-body{padding:20px}
  .tl-body h3{font-size:18px}
  .dl-pill{width:100%;justify-content:flex-start}
  .cta-actions{width:100%}
  .faq-q{padding:14px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-band{padding:28px}
}
@media (max-width:575px){
  :root{--sp-section:44px}
  .sec-title{font-size:24px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .badge{font-size:11px;padding:6px 12px}
  .dl-panel{padding:20px;border-radius:var(--r-md)}
  .after-item{gap:12px}
}

/* roulang page: category4 */
:root{
  --c-ink:#14181A;
  --c-ink-2:#4A5257;
  --c-ink-3:#7C858A;
  --c-line:#E6E1D8;
  --c-bg:#FAF6EF;
  --c-surface:#FFFFFF;
  --c-primary:#16564A;
  --c-primary-dark:#0F3A32;
  --c-accent:#F0A32C;
  --c-accent-soft:#FDF3E0;
  --c-neutral:#F3EFE7;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,24,26,.05);
  --sh-2:0 8px 24px -12px rgba(20,24,26,.16);
  --sh-3:0 24px 48px -24px rgba(20,24,26,.24);
  --sp-section:72px;
  --font-base:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,button,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:48px 0}
.section-head{margin-bottom:32px;max-width:720px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:800;letter-spacing:-.01em;margin-bottom:10px}
.section-head p{font-size:15px;color:var(--c-ink-2);line-height:1.8}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--c-accent);
  color:var(--c-primary-dark);font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;line-height:1;
  box-shadow:inset 0 -2px 0 rgba(15,58,50,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink)}
.brand-sub{font-size:11px;font-weight:500;color:var(--c-ink-2);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:26px;flex:1;justify-content:center}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;line-height:1.4;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);opacity:0;transform:scaleX(.6);transition:opacity .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{opacity:.45;transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 16px;
  background:var(--c-neutral);border-radius:var(--r-pill);border:1px solid transparent;
  transition:border-color .2s ease,background .2s ease;
}
.search-box:focus-within{border-color:var(--c-primary);background:#fff}
.search-box i{color:var(--c-ink-3);font-size:14px}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-ink-3)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  text-align:center;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;box-shadow:var(--sh-2)}
.btn-accent{background:var(--c-accent);color:var(--c-primary-dark)}
.btn-accent:hover{background:#e2951f;color:var(--c-primary-dark);box-shadow:var(--sh-2)}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.header-cta{white-space:nowrap}
.header-cta:hover{background:var(--c-accent);color:var(--c-primary-dark);border-color:var(--c-accent)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink)}
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;padding:20px;
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:#fff;
  color:var(--c-ink);font-size:18px;display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px}
.drawer-nav a{
  font-size:16px;font-weight:500;color:var(--c-ink);padding:0 4px;line-height:48px;
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:700}
.drawer .btn{width:100%}

/* ---------- banner ---------- */
.page-banner{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(135deg,rgba(15,58,50,.94) 0%,rgba(15,58,50,.62) 55%,rgba(15,58,50,.44) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:36px 0 56px;
}
.breadcrumb{margin-bottom:26px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.42)}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb li[aria-current]::before{color:rgba(255,255,255,.42)}
.breadcrumb ol li[aria-current]{color:#fff;font-weight:500}
.page-banner .badge{margin-bottom:16px}
.page-banner h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.2;font-weight:800;letter-spacing:-.01em;
  max-width:820px;margin-bottom:14px;
}
.banner-sub{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.04em;line-height:1.4;
}
.badge-amber{background:var(--c-accent-soft);color:var(--c-primary)}
.badge-green{background:rgba(22,86,74,.1);color:var(--c-primary-dark)}
.badge-outline{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.32)}

/* ---------- self check ---------- */
.quick-check{padding:64px 0 24px}
.quick-media{
  position:relative;aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);border:1px solid var(--c-line);
}
.quick-media img{width:100%;height:100%;object-fit:cover}
.quick-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(15,58,50,.28),rgba(15,58,50,0) 62%);
}
.step-list{margin-top:24px;display:flex;flex-direction:column;gap:18px}
.step-item{display:flex;gap:16px;align-items:flex-start}
.step-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:var(--c-accent);
  color:var(--c-primary-dark);font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.step-body h3{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:4px}
.step-body p{font-size:14px;line-height:1.8;color:var(--c-ink-2)}

/* ---------- faq layout ---------- */
.faq-layout{padding:56px 0 var(--sp-section)}
.faq-aside .aside-sticky{position:sticky;top:92px}
.aside-title{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-ink-3);
  text-transform:uppercase;margin-bottom:14px;
}
.anchor-list{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:10px;box-shadow:var(--sh-1);
}
.anchor-link{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:12px 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;
  color:var(--c-ink-2);line-height:1.4;min-height:44px;
  transition:background .2s ease,color .2s ease;
}
.anchor-link i{font-size:13px;color:var(--c-ink-3);transition:color .2s ease}
.anchor-link:hover{background:var(--c-neutral);color:var(--c-primary)}
.anchor-link:hover i{color:var(--c-primary)}
.anchor-link.is-current{background:var(--c-accent-soft);color:var(--c-primary);font-weight:700}
.anchor-link.is-current i{color:var(--c-accent)}
.anchor-link.is-current::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-accent);
}
.aside-help-card{
  margin-top:18px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);
}
.aside-help-card p{font-size:13px;line-height:1.8;color:var(--c-ink-2);margin-bottom:10px}
.aside-help-card strong{display:block;font-size:14px;color:var(--c-ink);margin-bottom:6px}
.aside-help-mail{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-primary);word-break:break-all;
}
.aside-help-mail:hover{color:var(--c-primary-dark)}

.notice-strip{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--c-accent-soft);border-left:3px solid var(--c-accent);
  border-radius:var(--r-sm);padding:16px 18px;margin-bottom:36px;
}
.notice-strip i{color:var(--c-accent);font-size:16px;margin-top:3px}
.notice-strip p{font-size:14px;line-height:1.8;color:var(--c-ink-2)}
.notice-strip strong{color:var(--c-ink);font-weight:700}

.faq-group{margin-bottom:44px}
.faq-group:last-child{margin-bottom:0}
.faq-group h2{
  font-size:clamp(22px,2.2vw,28px);font-weight:800;line-height:1.3;letter-spacing:-.01em;
  margin-bottom:8px;display:flex;align-items:center;gap:10px;
}
.faq-group h2::before{
  content:"";width:4px;height:22px;border-radius:2px;background:var(--c-accent);display:inline-block;
}
.faq-group-sub{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-bottom:18px}
.faq-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.5;
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--c-primary);background:#FCFAF6}
.faq-q i{
  flex:0 0 auto;font-size:14px;color:var(--c-primary);
  transition:transform .3s ease;transform-origin:center;
}
.faq-item.is-open .faq-q{color:var(--c-primary)}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a-inner{padding:0 20px 18px;font-size:14px;line-height:1.85;color:var(--c-ink-2)}
.faq-a-inner p+p{margin-top:10px}
.faq-a-inner strong{color:var(--c-ink);font-weight:700}

/* ---------- related ---------- */
.related-section{background:var(--c-neutral);padding:56px 0}
.related-grid{margin-top:8px}
.related-card{
  display:flex;flex-direction:column;height:100%;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D1C4;color:inherit}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .related-thumb img{transform:scale(1.03)}
.related-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:8px}
.related-body h3{font-size:19px;font-weight:700;line-height:1.4}
.related-body p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;
  color:var(--c-primary);margin-top:6px;
}
.text-link i{transition:transform .24s ease}
.related-card:hover .text-link i{transform:translateX(3px)}

/* ---------- support cta ---------- */
.support-cta{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:linear-gradient(135deg,var(--c-accent-soft) 0%,#FFFFFF 62%);
}
.support-cta-text h2{font-size:clamp(22px,2.2vw,28px);font-weight:800;line-height:1.3;margin-bottom:10px;letter-spacing:-.01em}
.support-cta-text p{font-size:14px;line-height:1.85;color:var(--c-ink-2);max-width:560px}
.support-cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-dark);color:#E9EFEC;padding:56px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px 32px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--c-accent);color:var(--c-primary-dark)}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(233,239,236,.72)}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(233,239,236,.76);max-width:340px;margin-bottom:12px}
.footer-full{
  display:inline-block;font-size:12px;letter-spacing:.04em;color:rgba(233,239,236,.56);
  border:1px solid rgba(233,239,236,.2);border-radius:var(--r-pill);padding:4px 12px;
}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:rgba(233,239,236,.76);line-height:1.6}
.footer-links a:hover{color:var(--c-accent)}
.footer-info p{font-size:13px;line-height:1.9;color:rgba(233,239,236,.76)}
.footer-bottom{
  border-top:1px solid rgba(233,239,236,.16);padding:18px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(233,239,236,.6);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .main-nav{gap:18px}
  .search-box{width:180px}
}
@media screen and (max-width:991px){
  .main-nav,.search-box,.header-cta{display:none}
  .nav-toggle{display:flex}
  :root{--sp-section:56px}
  .quick-check{padding:48px 0 16px}
  .faq-aside .aside-sticky{position:static}
  .faq-aside{margin-bottom:24px}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;padding:8px}
  .anchor-link{flex:1 1 auto;justify-content:center;padding:10px 14px;font-size:14px}
  .anchor-link.is-current::before{display:none}
  .aside-help-card{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
  .support-cta{flex-direction:column;align-items:flex-start;padding:32px}
}
@media screen and (max-width:767px){
  .header-inner{height:60px;gap:12px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
  .page-banner{padding:28px 0 40px}
  .banner-sub{font-size:15px}
  .quick-media{aspect-ratio:16/10;margin-bottom:28px}
  .section-head{margin-bottom:24px}
  .faq-q{font-size:15px;padding:14px 16px}
  .faq-a-inner{padding:0 16px 16px}
  .faq-group h2{font-size:22px}
  .notice-strip{padding:14px}
  .support-cta-actions{width:100%;flex-direction:column}
  .support-cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media screen and (max-width:575px){
  .container{padding:0 16px}
  :root{--sp-section:44px}
  .btn{width:100%}
  .header-cta,.header-tools .btn{width:auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .related-body{padding:18px}
  .anchor-link{font-size:13px;padding:10px 12px}
}