/* roulang page: index */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --text:#17201D;
  --text-2:#5A6663;
  --dark-text:#DDE7E3;
  --dark-text-2:#93A8A1;
  --line:#E7E3D9;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --r-band:24px;
  --sh:0 1px 2px rgba(15,22,20,.06),0 10px 24px -16px rgba(15,22,20,.20);
  --sh-hover:0 18px 40px -20px rgba(15,22,20,.30);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4{margin:0;color:inherit;font-family:var(--font);letter-spacing:-0.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.section-dark :focus-visible,.hero :focus-visible{outline-color:var(--glow)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.grid-x.grid-gutter{margin-left:-12px;margin-right:-12px}
.grid-x.grid-gutter>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.nums{font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(228,87,46,.9)}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:rgba(20,107,88,.10);border-color:var(--brand-2);color:var(--brand-2)}
.btn-ghost-dark{border-color:rgba(53,224,192,.55);color:#E9FBF6;background:rgba(53,224,192,.08)}
.btn-ghost-dark:hover{border-color:var(--glow);color:#fff;background:rgba(53,224,192,.16);box-shadow:0 0 14px rgba(53,224,192,.35)}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:var(--bg-alt);color:var(--brand-2)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%;height:48px}

.eyebrow{
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--brand-2);font-weight:700;margin:0 0 8px;
}
.section-dark .eyebrow,.hero .eyebrow{color:var(--glow)}
.tag{
  display:inline-block;padding:2px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--brand);background:rgba(20,107,88,.10);
  line-height:1.8;
}
.section-dark .tag{color:var(--glow);background:rgba(53,224,192,.12)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .22s ease;font-size:12px}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(15,22,20,.42);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
  transition:height .24s ease,background-color .24s ease,border-color .24s ease;
}
.header-inner{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:76px;display:flex;align-items:center;gap:24px;
  transition:height .24s ease;
}
.site-header.is-stuck{background:var(--dark);border-bottom-color:rgba(255,255,255,.08)}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand),var(--brand-2));
  color:#EAFBF6;font-size:16px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--dark-text-2);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  color:#CFDDD8;font-size:14.5px;font-weight:500;border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:var(--glow);transform:translateX(-50%);transition:width .24s ease;border-radius:2px;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:60%}
.main-nav a.is-active{color:#fff;font-weight:600}
.main-nav a.is-active::after{width:60%;background:var(--accent)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);min-width:190px;
}
.nav-search i{color:var(--dark-text-2);font-size:13px}
.nav-search input{
  width:100%;height:100%;border:0;background:transparent;color:#fff;font-size:13.5px;
}
.nav-search input::placeholder{color:rgba(221,231,227,.55)}
.nav-search input:focus{outline:none}
.nav-search:focus-within{border-color:rgba(53,224,192,.6)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .24s ease,opacity .24s ease}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:140;
  background:var(--dark-2);border-left:1px solid var(--line-dark);
  padding:26px 24px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(102%);transition:transform .3s ease;overflow-y:auto;
}
body.drawer-open .nav-drawer{transform:translateX(0)}
.nav-drawer a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  color:var(--dark-text);font-size:15px;
}
.nav-drawer a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-drawer a.is-active{background:rgba(20,107,88,.35);color:#fff;font-weight:600}
.nav-drawer .drawer-cta{margin-top:18px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(9,14,13,.62);z-index:130;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--dark);padding:152px 0 92px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(15,22,20,.94) 0%,rgba(15,22,20,.72) 48%,rgba(15,22,20,.90) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,192,.16),transparent 68%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.hero-copy{padding-right:20px}
.hero h1{
  color:#fff;font-size:clamp(32px,4.4vw,56px);line-height:1.18;font-weight:800;
  letter-spacing:-.02em;margin:10px 0 16px;max-width:15em;
}
.hero-sub{color:var(--dark-text);font-size:17px;line-height:1.8;max-width:32em;margin-bottom:0}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line-dark)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{
  color:var(--glow);font-size:26px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.hero-stats span{color:var(--dark-text-2);font-size:13px;letter-spacing:.04em}

.hero-panel-wrap{display:flex;justify-content:flex-end}
.login-panel{
  width:100%;max-width:420px;border-radius:20px;overflow:hidden;
  background:rgba(22,33,30,.92);border:1px solid var(--line-dark);
  box-shadow:0 40px 80px -50px rgba(0,0,0,.95);
  backdrop-filter:blur(6px);
}
.panel-head{
  display:flex;align-items:center;gap:7px;padding:14px 20px;
  border-bottom:1px solid var(--line-dark);background:rgba(255,255,255,.03);
}
.panel-head em{margin-left:auto;font-style:normal;font-size:12.5px;color:var(--dark-text-2);letter-spacing:.08em}
.panel-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.panel-dot:first-child{background:rgba(228,87,46,.8)}
.panel-body{padding:24px 22px 22px}
.panel-body label{
  display:block;font-size:13px;font-weight:600;color:var(--dark-text);
  margin-bottom:8px;letter-spacing:.02em;
}
.panel-body input{
  width:100%;height:46px;padding:0 14px;margin-bottom:16px;
  border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);color:#fff;font-size:14.5px;
}
.panel-body input::placeholder{color:rgba(221,231,227,.42)}
.panel-body input:focus{outline:none;border-color:var(--glow);box-shadow:0 0 0 4px rgba(53,224,192,.14)}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;font-size:13px;color:var(--dark-text-2)}
.panel-row a{color:var(--glow)}
.check{display:flex;align-items:center;gap:7px;cursor:pointer}
.check input{width:15px;height:15px;margin:0;accent-color:var(--brand-2)}
.panel-tip{margin:14px 0 0;font-size:12.5px;color:var(--dark-text-2);text-align:center;letter-spacing:.02em}
.panel-device{
  display:flex;align-items:center;gap:12px;margin-top:16px;padding:10px 12px;
  border-radius:12px;background:rgba(255,255,255,.05);border:1px solid var(--line-dark);
}
.panel-device img{width:46px;height:46px;border-radius:10px;object-fit:cover;flex-shrink:0}
.panel-device strong{display:block;font-size:13.5px;color:#fff;font-weight:600}
.panel-device span{font-size:12px;color:var(--dark-text-2)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:var(--dark-text)}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.section-desc{margin:10px 0 0;font-size:15px;color:var(--text-2);max-width:44em}
.section-dark .section-desc{color:var(--dark-text-2)}

/* ---------- entry grid ---------- */
.entry-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.3)}
.entry-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:rgba(20,107,88,.08)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-body{padding:22px 24px 24px;display:flex;flex-direction:column;align-items:flex-start;gap:10px;flex:1}
.entry-body h3{font-size:20px;font-weight:600;line-height:1.4}
.entry-body p{margin:0;font-size:14px;line-height:1.75;color:var(--text-2)}
.entry-arrow{position:absolute;right:22px;bottom:22px;color:var(--brand);font-size:13px;transition:transform .25s ease}
.entry-card:hover .entry-arrow{transform:translateX(4px)}
.entry-card--row{flex-direction:row;align-items:stretch}
.entry-card--row .entry-thumb{width:150px;flex-shrink:0;aspect-ratio:auto;min-height:100%}
.entry-card--row .entry-body{padding:20px 20px 20px 20px}
.entry-card--row .entry-body h3{font-size:18px}
.entry-card--row .entry-arrow{display:none}

/* ---------- post grid (CMS) ---------- */
.post-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.3)}
.post-cover{position:relative;display:block;overflow:hidden;aspect-ratio:16/9;background:rgba(20,107,88,.08)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-cover img{transform:scale(1.03)}
.post-cat{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--brand);background:rgba(255,255,255,.92);
  backdrop-filter:blur(4px);
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:18px;font-weight:700;line-height:1.5}
.post-body h3 a{color:var(--text);display:block}
.post-body h3 a:hover{color:var(--brand-2)}
.post-summary{
  margin:0;font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-2);
}
.post-meta .nums{font-variant-numeric:tabular-nums}
.post-meta i{color:var(--brand);font-size:12px;transition:transform .25s ease}
.post-card:hover .post-meta i{transform:translateX(4px)}
.empty-state{
  text-align:center;padding:64px 24px;background:var(--card);
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state i{
  width:56px;height:56px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(20,107,88,.12);color:var(--brand);font-size:20px;margin-bottom:16px;
}
.empty-state p{margin:0 0 18px;font-size:15px;color:var(--text-2)}

/* ---------- reviews ---------- */
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 40px)/3);min-width:280px;scroll-snap-align:start;
  background:var(--dark-2);border:1px solid var(--line-dark);border-radius:var(--r-card);
  padding:26px 24px;display:flex;flex-direction:column;gap:14px;
}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,224,192,.14);color:var(--glow);font-weight:700;font-size:15px;
}
.review-head strong{color:#fff;font-size:15px;font-weight:600;display:block}
.review-head span{font-size:12.5px;color:var(--dark-text-2)}
.stars{color:var(--glow);font-size:12px;letter-spacing:2px}
.review-card p{margin:0;font-size:14.5px;line-height:1.8;color:var(--dark-text)}
.review-tags{margin-top:auto;display:flex;flex-wrap:wrap;gap:8px}
.review-dots{display:flex;align-items:center;gap:8px;margin-top:26px}
.review-dots button{
  width:8px;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.24);
  transition:width .25s ease,background-color .25s ease;padding:0;
}
.review-dots button.is-active{width:20px;background:var(--glow)}

/* ---------- guarantee ---------- */
.guard-item{text-align:center;padding:0 12px}
.guard-icon{
  width:40px;height:40px;border-radius:50%;margin:0 auto 14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,107,88,.10);color:var(--brand);font-size:16px;
}
.guard-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.guard-item span{font-size:12.5px;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-band);
  padding:56px 52px;background:var(--dark-2);border:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(15,22,20,.95),rgba(15,22,20,.62)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.75;
}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-band p{margin:0;color:var(--dark-text-2);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}

/* ---------- faq ---------- */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.is-open{border-color:rgba(20,107,88,.35);box-shadow:var(--sh)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
  min-height:44px;
}
.faq-q i{color:var(--brand);font-size:13px;transition:transform .22s ease;flex-shrink:0}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-item.is-open .faq-a{max-height:420px;padding:0 22px 20px}
.faq-a p{margin:0;font-size:15px;line-height:1.85;color:var(--text-2);padding-top:10px;border-top:1px solid var(--line)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-text-2);padding:72px 0 0;margin-top:0}
.footer-grid{margin-bottom:48px}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.12em;color:#fff;margin-bottom:18px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-col p{font-size:14px;line-height:1.85;margin:0 0 10px}
.footer-col li{margin-bottom:10px}
.footer-col li a{font-size:14px;color:#9FB0AA;display:inline-block}
.footer-col li a:hover{color:var(--glow);transform:translateX(2px)}
.footer-note{font-size:13px;color:#7C8C86;margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:#7C8C86;
}
.footer-bottom a{color:#9FB0AA}
.footer-bottom a:hover{color:var(--glow)}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .hero{padding:132px 0 72px}
  .hero-copy{padding-right:0;margin-bottom:40px}
  .hero-panel-wrap{justify-content:center}
  .section{padding:68px 0}
  .review-card{flex:0 0 calc((100% - 20px)/2)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 34px}
}
@media screen and (max-width:768px){
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .hero-stats{gap:30px}
  .review-card{flex:0 0 88%}
  .cta-band{padding:36px 26px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .entry-card--row{flex-direction:column}
  .entry-card--row .entry-thumb{width:100%;aspect-ratio:16/9}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:480px){
  body{font-size:15.5px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .btn{height:48px}
  .hero-cta .btn{width:100%}
  .entry-body{padding:18px}
  .panel-body{padding:20px 18px}
  .faq-q{padding:16px 18px;font-size:15px}
  .section-head h2{font-size:23px}
}

/* roulang page: article */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --ink:#17201D;
  --ink-2:#5A6663;
  --ink-3:#8A9491;
  --dark-text:#DDE7E3;
  --dark-text-2:#93A8A1;
  --line:#E7E3D9;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-band:24px;
  --sh:0 1px 2px rgba(15,22,20,.06), 0 10px 24px -16px rgba(15,22,20,.20);
  --sh-hover:0 18px 40px -20px rgba(15,22,20,.30);
  --sec:88px;
  --max:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand-2)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
::selection{background:rgba(20,107,88,.16)}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.18em;
  color:var(--brand);font-weight:700;margin-bottom:8px;text-transform:uppercase;
}
.sec{padding:var(--sec) 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{margin-bottom:40px}
.sec-head h2{font-size:34px;font-weight:700}
.sec-head p{margin-top:12px;color:var(--ink-2);font-size:15px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(15,22,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 6px 24px -18px rgba(0,0,0,.6);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:var(--line-dark);
  box-shadow:0 12px 32px -22px rgba(0,0,0,.85);
}
.header-inner{
  max-width:var(--max);margin:0 auto;padding:0 20px;
  height:76px;display:flex;align-items:center;gap:20px;
  transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:18px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),0 8px 18px -12px rgba(53,224,192,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--glow);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:14px}
.main-nav a{
  position:relative;display:inline-flex;align-items:center;
  padding:12px 14px;font-size:15px;color:rgba(255,255,255,.84);
  border-radius:8px;transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:20%;right:20%;bottom:6px;height:2px;
  background:var(--glow);border-radius:2px;transform:scaleX(0);
  transition:transform .24s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1);background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border-radius:999px;background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);color:var(--dark-text-2);
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--glow);background:rgba(255,255,255,.16)}
.nav-search i{font-size:13px;color:var(--dark-text-2)}
.nav-search input{
  width:132px;border:0;background:none;color:#fff;font-size:14px;outline:none;
}
.nav-search input::placeholder{color:rgba(221,231,227,.55)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  border:1px solid transparent;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(228,87,46,.9)}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(20,107,88,.10);border-color:var(--brand-2);color:var(--brand)}
.btn-dark-ghost{border-color:rgba(53,224,192,.55);background:rgba(53,224,192,.10);color:#EAFFFA}
.btn-dark-ghost:hover{border-color:var(--glow);background:rgba(53,224,192,.18);color:#fff;box-shadow:0 0 16px rgba(53,224,192,.35)}
.btn-block{width:100%}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(20,107,88,.10);color:var(--brand);
}
.badge-dark{background:rgba(53,224,192,.14);color:var(--glow);border:1px solid rgba(53,224,192,.3)}

/* ---------- article hero ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--dark);color:var(--dark-text);
  padding:140px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;opacity:.6;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dark-text-2);margin-bottom:26px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.28)}
.breadcrumb a{color:var(--dark-text-2)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .is-current{color:rgba(255,255,255,.66);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-head{max-width:880px}
.hero-head h1{
  margin:18px 0 20px;font-size:44px;line-height:1.2;font-weight:800;
  letter-spacing:-.02em;color:#fff;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--dark-text-2)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .dot{color:rgba(255,255,255,.25)}
.meta-row i{color:var(--glow);font-size:12px}

/* ---------- article layout ---------- */
.article-wrap{padding:56px 0 8px}
.article-layout{
  max-width:1180px;margin:0 auto;padding:0 20px;
  display:grid;grid-template-columns:minmax(0,1fr) 264px;gap:56px;align-items:start;
}
.article-main{max-width:780px;width:100%;margin:0 auto}
.article-cover{margin-bottom:36px}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh);
}
.article-cover figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;text-align:center}

.article-body{font-size:17px;line-height:1.9;color:#212B28}
.article-body>*+*{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.35;color:var(--ink);
  margin:42px 0 16px;padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:21px;font-weight:600;color:var(--ink);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body ul li{list-style:disc;margin-bottom:.5em}
.article-body ol li{list-style:decimal;margin-bottom:.5em}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--brand);
  background:rgba(20,107,88,.06);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:22px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body code{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:15px;
}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--bg-alt);color:var(--brand);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- article foot ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-list .tag{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;
  border-radius:999px;border:1px solid var(--line);background:var(--card);
  font-size:13px;color:var(--ink-2);transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag-list .tag:hover{border-color:rgba(20,107,88,.4);color:var(--brand);transform:translateY(-1px)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px}
.share-row .label{font-size:13px;color:var(--ink-3);letter-spacing:.06em}
.icon-btn{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--card);color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.icon-btn:hover{border-color:rgba(20,107,88,.4);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh)}
.back-row{margin-top:28px}

/* ---------- toc ---------- */
.article-toc{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh);
}
.article-toc h4{
  font-size:13px;letter-spacing:.12em;color:var(--ink-3);
  font-weight:600;margin-bottom:14px;
}
.article-toc ol{display:flex;flex-direction:column;gap:2px}
.article-toc a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;line-height:1.6;
  color:var(--ink-2);border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.article-toc a:hover{background:var(--bg-alt);color:var(--brand)}
.article-toc a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(20,107,88,.07);font-weight:600}
.toc-hint{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- empty ---------- */
.empty-state{
  text-align:center;padding:64px 24px;background:var(--bg-alt);
  border:1px solid var(--line);border-radius:var(--r-card);
}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;background:rgba(20,107,88,.10);
  color:var(--brand);font-size:24px;
}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.3)}
.post-card .thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:rgba(20,107,88,.08)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .thumb .badge{position:absolute;top:12px;left:12px;background:rgba(247,245,239,.92)}
.post-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:18px;font-weight:700;line-height:1.5}
.post-card h3 a{display:block}
.post-card p{font-size:14px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.post-card .foot i{transition:transform .2s ease}
.post-card:hover .foot i{transform:translateX(4px);color:var(--accent)}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 var(--sec)}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-band);
  background:var(--dark);color:var(--dark-text);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  border:1px solid var(--line-dark);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-inner .cta-copy{position:relative;z-index:2;max-width:620px}
.cta-inner h2{font-size:32px;color:#fff;margin-bottom:12px}
.cta-inner p{color:var(--dark-text-2);font-size:15px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-text-2);padding:72px 0 0}
.footer-grid{row-gap:36px}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:#fff;margin-bottom:18px;
}
.footer-col p{font-size:14px;line-height:1.85;color:var(--dark-text-2);margin-bottom:8px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{
  display:inline-block;font-size:14px;color:#9FB0AA;
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a:hover{color:var(--glow);transform:translateX(2px)}
.footer-note{font-size:13px !important;color:#6E7F79 !important}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8C86;
}

/* ---------- responsive ---------- */
@media screen and (max-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:40px}
  .article-main{max-width:100%}
}
@media screen and (max-width:1024px){
  .site-header{background:var(--dark)}
  .header-inner{height:64px}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;z-index:79;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    padding:24px;background:var(--dark);
    border-bottom:1px solid var(--line-dark);
    transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
    transition:transform .24s ease,opacity .24s ease,visibility .24s;
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .main-nav a{height:48px;padding:0 8px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
  .main-nav a::after{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-toc{display:none}
  .hero-head h1{font-size:36px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sec{padding:68px 0}
  .cta-inner{padding:44px}
}
@media screen and (max-width:768px){
  .sec{padding:52px 0}
  .sec-head h2{font-size:26px}
  .hero-head h1{font-size:30px}
  .page-hero{padding:118px 0 46px}
  .brand-text em{display:none}
  .brand-text strong{font-size:15px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:32px 24px;border-radius:18px}
  .cta-inner h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:19px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .article-layout{padding:0 16px}
  .btn{height:48px}
  .btn-block-mobile{width:100%}
  .hero-head h1{font-size:28px}
  .meta-row{font-size:12px}
  .post-card .body{padding:18px}
  .cta-actions{flex-direction:column}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --text:#17201D;
  --text-2:#5A6663;
  --text-d:#DDE7E3;
  --text-d2:#93A8A1;
  --line:#E7E3D9;
  --line-d:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-banner:24px;
  --sh:0 1px 2px rgba(15,22,20,.06), 0 10px 24px -16px rgba(15,22,20,.20);
  --sh-h:0 18px 40px -20px rgba(15,22,20,.30);
  --sec:88px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-2)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:inherit}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(20,107,88,.18)}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
/* ============ 容器与网格 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.grid-x{display:flex;flex-wrap:wrap}
.gutter,.grid-gutter{margin-left:-12px;margin-right:-12px}
.gutter > .cell,.grid-gutter > .cell{padding-left:12px;padding-right:12px;width:100%}
@media (min-width:640px){
  .gutter > .cell.medium-6,.grid-gutter > .cell.medium-6{width:50%}
  .gutter > .cell.medium-12,.grid-gutter > .cell.medium-12{width:100%}
}
@media (min-width:1024px){
  .gutter > .cell.large-3,.grid-gutter > .cell.large-3{width:25%}
  .gutter > .cell.large-4,.grid-gutter > .cell.large-4{width:33.3333%}
  .gutter > .cell.large-6,.grid-gutter > .cell.large-6{width:50%}
  .gutter > .cell.large-12,.grid-gutter > .cell.large-12{width:100%}
}
@media (max-width:768px){
  .gutter > .cell,.grid-gutter > .cell{width:100% !important}
}
/* ============ 玻璃导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(15,22,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 12px 30px -24px rgba(0,0,0,.7);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{background:rgba(15,22,20,.94);box-shadow:0 14px 34px -22px rgba(0,0,0,.85)}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:76px;display:flex;align-items:center;gap:20px;
  transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-2),var(--brand));
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.brand-text strong{display:block;font-size:15px;font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.3}
.brand-text em{display:block;font-style:normal;font-size:11px;color:var(--text-d2);letter-spacing:.12em;line-height:1.4}
.main-nav{flex:1;display:flex;justify-content:center;align-items:center;gap:4px}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;color:rgba(255,255,255,.84);
  border-radius:8px;transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:60%;height:2px;border-radius:2px;background:var(--glow);
  transition:transform .22s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{transform:translateX(-50%) scaleX(1)}
.main-nav a.is-active{color:#fff;font-weight:600}
.main-nav a.is-active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:999px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search i{color:var(--text-d2);font-size:13px}
.nav-search input{
  width:132px;height:100%;border:0;background:transparent;color:#fff;
  font-size:14px;outline:none;
}
.nav-search input::placeholder{color:rgba(255,255,255,.52)}
.nav-search:focus-within{border-color:rgba(53,224,192,.6);box-shadow:0 0 0 3px rgba(53,224,192,.14)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .2s ease,opacity .2s ease}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  white-space:nowrap;cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(20,107,88,.10);border-color:var(--brand-2);color:var(--brand)}
.btn-dark-ghost{border-color:rgba(53,224,192,.55);background:rgba(53,224,192,.08);color:#EAFFF9}
.btn-dark-ghost:hover{border-color:var(--glow);color:#fff;box-shadow:0 0 14px rgba(53,224,192,.32)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.btn-link i{transition:transform .2s ease}
.btn-link:hover i{transform:translateX(4px)}
/* ============ 内页 Hero 矮条 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:148px 0 68px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(15,22,20,.94) 0%,rgba(15,22,20,.76) 54%,rgba(15,22,20,.52) 100%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-d2);margin-bottom:18px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(255,255,255,.28)}
.breadcrumb a{color:var(--text-d2)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .is-current{color:rgba(255,255,255,.62)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
  color:#fff;max-width:960px;
}
.hero-sub{margin-top:16px;max-width:660px;font-size:17px;line-height:1.8;color:var(--text-d)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px}
.hero-facts li{display:flex;flex-direction:column;gap:2px}
.hero-facts strong{font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-facts span{font-size:13px;color:var(--text-d2)}
/* ============ 板块通用 ============ */
.section{padding:var(--sec) 0}
.section--alt{background:var(--bg-alt)}
.section--tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:44px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.eyebrow{
  display:block;font-size:12px;font-weight:700;letter-spacing:.18em;
  color:var(--brand);margin-bottom:8px;
}
.section-head h2{font-size:clamp(24px,3.1vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:720px}
.section--dark{background:var(--dark);color:var(--text-d)}
.section--dark .eyebrow{color:var(--glow)}
.section--dark .section-lead{color:var(--text-d2)}
/* ============ 卡片网格 ============ */
.card-grid{row-gap:24px}
.entry-card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(20,107,88,.30)}
.entry-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(20,107,88,.08)}
.entry-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .entry-card__media img{transform:scale(1.03)}
.badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(247,245,239,.94);color:var(--brand);
}
.entry-card__body{display:flex;flex-direction:column;gap:10px;padding:22px 24px 24px;flex:1}
.entry-card__title{font-size:19px;font-weight:700;line-height:1.4;color:var(--text)}
.entry-card__desc{font-size:14px;line-height:1.75;color:var(--text-2)}
.entry-card__link{
  margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.entry-card__link i{transition:transform .2s ease}
.entry-card:hover .entry-card__link i{transform:translateX(4px)}
.entry-icon{
  width:48px;height:48px;border-radius:14px;flex:0 0 auto;
  background:rgba(20,107,88,.10);color:var(--brand);
  display:grid;place-items:center;font-size:19px;
}
.entry-card--row{flex-direction:row;align-items:stretch}
.entry-card--row .entry-icon{
  width:70px;height:auto;border-radius:0;background:rgba(20,107,88,.08);
  display:grid;place-items:center;font-size:22px;
}
.entry-card--row .entry-card__body{padding:20px 20px 22px}
.entry-card--row .entry-card__title{font-size:18px}
/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
.media-frame{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh);aspect-ratio:4/3;background:rgba(20,107,88,.08);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.prep-list{display:grid;gap:18px;margin-top:32px}
.prep-list li{display:flex;gap:16px;align-items:flex-start}
.prep-num{
  flex:0 0 36px;width:36px;height:36px;border-radius:999px;
  background:rgba(20,107,88,.10);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.prep-list h3{font-size:16px;font-weight:600;line-height:1.6;margin-bottom:4px}
.prep-list p{font-size:14px;line-height:1.75;color:var(--text-2)}
/* ============ 保障条 ============ */
.guards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:28px 18px;text-align:center;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guard:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(20,107,88,.28)}
.guard__icon{
  width:40px;height:40px;margin:0 auto 14px;border-radius:999px;
  background:rgba(20,107,88,.10);color:var(--brand);
  display:grid;place-items:center;font-size:17px;
}
.guard__label{font-size:14px;font-weight:600;color:var(--text)}
.guard__note{margin-top:6px;font-size:12px;line-height:1.7;color:var(--text-2)}
/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:840px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(20,107,88,.32);box-shadow:var(--sh)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;border:0;background:none;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq-q i{flex:0 0 auto;color:var(--brand);font-size:14px;transition:transform .2s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;margin:0 12px 12px;padding:14px 18px;border-radius:12px;background:var(--bg-alt);font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-item.is-open .faq-a{display:block}
/* ============ 互链区 ============ */
.cross-grid{row-gap:24px}
/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-banner);
  background:var(--dark) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:62px 56px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(15,22,20,.95) 0%,rgba(15,22,20,.80) 58%,rgba(15,22,20,.62) 100%);
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between}
.cta-band h2{font-size:clamp(23px,3vw,32px);color:#fff;letter-spacing:-.01em}
.cta-band p{margin-top:12px;font-size:16px;color:var(--text-d);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);color:var(--text-d2);
  padding:72px 0 0;border-top:1px solid var(--line-d);
}
.footer-grid{row-gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
.footer-brand strong{font-size:15px;font-weight:700}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:10px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-d2);margin-bottom:8px}
.footer-col a{display:inline-block;font-size:14px;color:#9FB0AA}
.footer-col a:hover{color:var(--glow);transform:translateX(2px)}
.footer-note{font-size:13px;color:rgba(147,168,161,.8)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:var(--text-d2);
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec:68px}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .main-nav{
    position:fixed;top:0;right:0;z-index:70;
    width:min(320px,86vw);height:100vh;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:96px 24px 24px;margin:0;
    background:var(--dark);box-shadow:-20px 0 40px -20px rgba(0,0,0,.7);
    transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0)}
  .main-nav a{height:48px;display:flex;align-items:center;padding:0 8px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0}
  .main-nav a::after{display:none}
  .btn{padding:0 18px}
  .split{grid-template-columns:1fr;gap:34px}
  .guards{grid-template-columns:repeat(2,1fr);gap:18px}
  .cta-band{padding:48px 32px}
}
@media (max-width:768px){
  :root{--sec:52px}
  .page-hero{padding:126px 0 54px}
  .section-head{margin-bottom:32px}
  .hero-facts{gap:26px}
  .hero-actions .btn{width:100%}
  .faq-list{max-width:none}
  .cta-band{padding:40px 22px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  body{font-size:15px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .entry-card__body{padding:18px 18px 20px}
  .guards{grid-template-columns:1fr}
  .brand-text em{display:none}
}

/* roulang page: category2 */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --text:#17201D;
  --muted:#5A6663;
  --dark-text:#DDE7E3;
  --dark-muted:#93A8A1;
  --line:#E7E3D9;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 1px 2px rgba(15,22,20,.06),0 10px 24px -16px rgba(15,22,20,.20);
  --sh-hover:0 18px 40px -20px rgba(15,22,20,.30);
  --section-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em}
h1{font-size:54px;font-weight:800;line-height:1.18}
h2{font-size:34px;font-weight:700;line-height:1.3}
h3{font-size:21px;font-weight:600;line-height:1.4}
h4{font-size:16px;font-weight:700;line-height:1.5}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.block{padding:var(--section-y) 0}
.block-alt{background:var(--bg-alt)}
.block-dark{background:var(--dark);color:var(--dark-text)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--brand);margin-bottom:10px}
.block-dark .eyebrow{color:var(--glow)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}
.section-head .lead{margin-top:12px;max-width:640px;font-size:15px;color:var(--muted)}
.block-dark .section-head .lead{color:var(--dark-muted)}
.grid-gutter{margin:0 -12px}
.grid-gutter>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:200;
  height:76px;
  background:rgba(15,22,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.7);
  transition:height .24s ease,background-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{height:64px;background:var(--dark);box-shadow:0 14px 32px -20px rgba(0,0,0,.75)}
.header-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 20px;
  height:100%;display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:11px;color:#fff;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand-2),var(--brand));
  color:#fff;font-size:16px;flex-shrink:0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-text strong{display:block;font-size:16px;font-weight:800;line-height:1.25;color:#fff;letter-spacing:-.01em}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--dark-muted);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  position:relative;display:flex;align-items:center;
  min-height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:#E4EDEA;border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;background:var(--glow);
  transform:translateX(-50%);transition:width .24s ease;
}
.main-nav a:hover::after,.main-nav a.is-active::after{width:58%}
.main-nav a.is-active{color:#fff;font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{font-size:13px;color:var(--dark-muted)}
.nav-search input{
  width:132px;height:38px;border:0;background:none;outline:none;
  font-family:inherit;font-size:14px;color:#fff;
}
.nav-search input::placeholder{color:rgba(221,231,227,.62)}
.nav-search:focus-within{border-color:var(--glow);box-shadow:0 0 0 3px rgba(53,224,192,.15)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;cursor:pointer;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.20);
  border-radius:var(--r-btn);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .24s ease,opacity .24s ease}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(228,87,46,.85)}
.btn-primary:hover{background:var(--accent-d);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(20,107,88,.10);border-color:var(--brand-2);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark{border-color:rgba(53,224,192,.55);color:#EAF7F4;background:rgba(255,255,255,.06)}
.btn-dark:hover{border-color:var(--glow);box-shadow:0 0 14px rgba(53,224,192,.28);transform:translateY(-2px)}
.btn-dark:active{transform:translateY(0)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(4px)}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(20,107,88,.10);color:var(--brand);
}
.block-dark .pill{background:rgba(53,224,192,.12);color:var(--glow)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--dark);color:var(--dark-text);
  padding:158px 0 66px;
  min-height:300px;display:flex;align-items:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.17;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 22%,rgba(53,224,192,.14),transparent 58%);
}
.hero-inner{position:relative;z-index:2}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dark-muted);margin-bottom:18px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.28)}
.breadcrumb a{color:#B9CCC6}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb [aria-current="page"]{color:var(--dark-muted)}
.page-hero h1{color:#fff;margin-bottom:16px}
.hero-sub{font-size:17px;color:var(--dark-muted);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ---------- stat band ---------- */
.band-dark{background:var(--dark-2);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);color:var(--dark-text);padding:48px 0}
.stats-row>.cell{margin-bottom:0}
.stat{padding:0 22px;border-left:1px solid var(--line-dark)}
.stats-row>.cell:first-child .stat{border-left:0;padding-left:0}
.stat strong{display:block;font-size:38px;font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:15px;font-weight:600;color:var(--glow)}
.stat p{margin-top:4px;font-size:13px;color:var(--dark-muted)}

/* ---------- ribbon rows ---------- */
.ribbon-list{display:flex;flex-direction:column;gap:24px}
.ribbon{
  display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  gap:36px;align-items:center;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.ribbon:nth-child(even){grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr)}
.ribbon:nth-child(even) .ribbon-media{order:2}
.ribbon:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.32)}
.ribbon-media{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:rgba(20,107,88,.08)}
.ribbon-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.ribbon:hover .ribbon-media img{transform:scale(1.03)}
.ribbon-body .pill{margin-bottom:14px}
.ribbon-body h3{margin-bottom:10px}
.ribbon-body p{font-size:15px;color:var(--muted);margin-bottom:16px}

/* ---------- checklist ---------- */
.check-wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.check-visual{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);border:1px solid var(--line);aspect-ratio:16/11;background:rgba(20,107,88,.08)}
.check-visual img{width:100%;height:100%;object-fit:cover}
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.check-item{
  display:flex;gap:14px;padding:20px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.3)}
.check-num{font-size:18px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.4}
.check-item h4{margin-bottom:4px}
.check-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- faq ---------- */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--sh);transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(20,107,88,.35)}
.faq-q{
  width:100%;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .2s ease;flex-shrink:0}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;margin:0 12px 12px;padding:16px 16px 18px;border-radius:12px;background:var(--bg-alt);font-size:15px;line-height:1.85;color:var(--muted)}
.faq-item.is-open .faq-a{display:block}

/* ---------- cross links ---------- */
.cross-card{
  display:flex;flex-direction:column;height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.3)}
.cross-card .thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(20,107,88,.08)}
.cross-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cross-card:hover .thumb img{transform:scale(1.03)}
.cross-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.cross-card .body p{font-size:14px;color:var(--muted);line-height:1.75;flex:1}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:24px;
  padding:56px;color:var(--dark-text);
  border:1px solid var(--line-dark);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.14;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{font-size:15px;color:var(--dark-muted);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-shrink:0}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:var(--dark-muted);padding:72px 0 0}
.footer-grid{margin-bottom:8px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:#fff;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.8;color:var(--dark-muted);margin-bottom:8px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:#9FB0AA;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-col ul a:hover{color:var(--glow);transform:translateX(-2px)}
.footer-note{font-size:13px;color:rgba(147,168,161,.8)}
.footer-bottom{
  margin-top:32px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(147,168,161,.85);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--section-y:68px}
  h1{font-size:40px}
  h2{font-size:28px}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    gap:4px;padding:16px 24px 24px;
    background:var(--dark);
    border-bottom:1px solid var(--line-dark);
    box-shadow:0 24px 40px -24px rgba(0,0,0,.8);
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{height:48px;padding:0 12px;border-radius:10px}
  .main-nav a::after{bottom:8px}
  .main-nav a.is-active{background:rgba(53,224,192,.10)}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .stat{border-left:0;padding:0 0 18px}
  .stats-row>.cell:first-child .stat{padding-left:0}
  .ribbon,.ribbon:nth-child(even){grid-template-columns:1fr;gap:20px}
  .ribbon:nth-child(even) .ribbon-media{order:0}
  .check-wrap{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:40px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{flex-wrap:wrap}
}
@media (max-width:768px){
  :root{--section-y:52px}
  h1{font-size:32px}
  h2{font-size:24px}
  .brand-text em{display:none}
  .header-actions .btn-sm{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .check-list{grid-template-columns:1fr}
  .cross-card .body{padding:18px}
}
@media (max-width:520px){
  h1{font-size:30px}
  .page-hero{padding:132px 0 52px}
  .hero-sub{font-size:15px}
  .btn{width:100%}
  .cta-actions{flex-direction:column;width:100%}
  .ribbon{padding:18px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a{margin:0 8px 10px;padding:14px}
  .site-footer{padding-top:52px}
}

/* roulang page: category3 */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --text:#17201D;
  --text-2:#5A6663;
  --text-dark-body:#DDE7E3;
  --text-dark-2:#93A8A1;
  --line:#E7E3D9;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:999px;
  --r-band:24px;
  --shadow-1:0 1px 2px rgba(15,22,20,.06), 0 10px 24px -16px rgba(15,22,20,.20);
  --shadow-2:0 18px 40px -20px rgba(15,22,20,.30);
  --sec-d:88px;
  --sec-t:68px;
  --sec-m:52px;
  --maxw:1200px;
  --font:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(20,107,88,.18)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grid-gutter{margin-left:-12px;margin-right:-12px}
.grid-gutter > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(15,22,20,.42);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.75);
  transition:background .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:var(--line-dark);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.9);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  height:76px;display:flex;align-items:center;gap:20px;
  transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:64px}

.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  display:grid;place-items:center;font-size:17px;color:#fff;
  background:linear-gradient(135deg,var(--brand-2),var(--brand));
  box-shadow:0 8px 18px -12px rgba(53,224,192,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:#9FC3B8}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  position:relative;padding:10px 14px;font-size:14.5px;color:var(--text-dark-body);
  border-radius:8px;transition:color .2s ease, background .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:var(--glow);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.main-nav a:hover::after,.main-nav a.is-active::after{width:60%}
.main-nav a.is-active{color:#fff;font-weight:600}

.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-btn);
  transition:border-color .2s ease, background .2s ease;
}
.nav-search:focus-within{border-color:var(--glow);background:rgba(255,255,255,.13)}
.nav-search i{font-size:13px;color:#9FC3B8}
.nav-search input{
  width:118px;background:transparent;border:0;outline:none;
  font-size:13.5px;color:#fff;
}
.nav-search input::placeholder{color:#8FA5A0}

.nav-toggle{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0;cursor:pointer;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-btn);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .24s ease, opacity .24s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-glow{
  background:rgba(53,224,192,.10);
  border-color:rgba(53,224,192,.5);
  color:#EAFBF6;
}
.btn-glow:hover{background:rgba(53,224,192,.18);border-color:var(--glow);color:#fff;box-shadow:0 0 16px rgba(53,224,192,.35)}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand)}
.link-arrow i{font-size:12px;transition:transform .2s ease}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--dark);color:#fff;
  padding:158px 0 68px;
  min-height:308px;
  display:flex;align-items:flex-end;
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.page-hero .hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,22,20,.62) 0%,rgba(15,22,20,.88) 62%,rgba(15,22,20,.96) 100%);
}
.page-hero .container{position:relative;z-index:2}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dark-2);margin-bottom:16px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(255,255,255,.3)}
.breadcrumb a{color:#B7C8C2}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .current{color:#E7F1ED}

.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--brand-2);margin-bottom:10px}
.section-dark .eyebrow,.page-hero .eyebrow{color:var(--glow)}

h1{
  font-size:clamp(30px, 4.1vw, 52px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;color:#fff;
  max-width:880px;
}
.hero-sub{margin-top:16px;font-size:16.5px;line-height:1.8;color:var(--text-dark-body);max-width:720px}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-d) 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark);color:var(--text-dark-body)}
.section-dark .section-head p{color:var(--text-dark-2)}

.section-head{max-width:760px;margin-bottom:44px}
h2.h2{
  font-size:clamp(24px, 2.8vw, 34px);
  font-weight:700;line-height:1.32;letter-spacing:-.01em;color:var(--text);
}
.section-dark h2.h2,.cta-band h2.h2{color:#fff}
.section-head p{margin-top:14px;font-size:16px;color:var(--text-2)}

/* ---------- 两列编号大卡 ---------- */
.num-card{
  display:flex;flex-direction:column;gap:14px;height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,107,88,.30)}
.num-card-media{aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-img);background:rgba(20,107,88,.08)}
.num-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.num-card:hover .num-card-media img{transform:scale(1.04)}
.num-badge{
  align-self:flex-start;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  background:rgba(20,107,88,.10);
  border-radius:var(--r-badge);
  padding:5px 14px;
}
.num-card h3{font-size:21px;font-weight:600;line-height:1.45;color:var(--text)}
.num-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.num-card-tags{display:flex;flex-wrap:wrap;gap:8px}
.num-card-tags li{
  font-size:12.5px;color:var(--brand-2);
  background:rgba(30,142,116,.10);
  border-radius:var(--r-badge);
  padding:4px 12px;
}
.num-card .link-arrow{margin-top:auto}

/* ---------- 自查编号列表 ---------- */
.checklist{display:flex;flex-direction:column;gap:16px;counter-reset:step}
.checklist li{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  padding:20px 24px 20px 72px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.checklist li:hover{transform:translateY(-3px);border-color:rgba(20,107,88,.28);box-shadow:var(--shadow-2)}
.checklist li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;left:24px;top:20px;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--accent);
}
.checklist strong{display:block;font-size:16.5px;font-weight:600;color:var(--text);margin-bottom:4px}
.checklist span{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(20,107,88,.30);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;min-height:44px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;
  background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq-q i{flex:none;font-size:13px;color:var(--brand);transition:transform .2s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{
  padding:14px 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);
  border-top:1px solid var(--line);
}

/* ---------- 互链卡片 ---------- */
.cross-card{
  display:block;height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,107,88,.30)}
.cross-card .thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(20,107,88,.08)}
.cross-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.cross-card:hover .thumb img{transform:scale(1.03)}
.cross-card .body{padding:22px 24px 24px}
.cross-card h3{font-size:18px;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:8px}
.cross-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:12px}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark-2);
  border:1px solid var(--line-dark);
  border-radius:var(--r-band);
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band .band-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-band > *{position:relative;z-index:2}
.cta-text{max-width:620px}
.cta-text p{margin-top:12px;font-size:15.5px;color:var(--text-dark-2)}
.cta-actions{display:flex;gap:12px;flex:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--text-dark-2);padding-top:72px}
.footer-grid{padding-bottom:40px}
.footer-col h4{font-size:13px;font-weight:600;letter-spacing:.12em;color:#fff;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB0AA;margin-bottom:10px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{display:inline-block;font-size:14px;color:#9FB0AA;transition:color .2s ease, transform .2s ease}
.footer-col ul a:hover{color:var(--glow);transform:translateX(2px)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{font-size:15px;color:#fff}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:15px}
.footer-note{font-size:13px;color:#7C8E88}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 24px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:13px;color:#839691;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec-d:68px}
  .header-inner{height:64px;padding:0 20px}
  .site-header.is-scrolled .header-inner{height:60px}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;margin-left:0;
    background:var(--dark);
    border-top:1px solid var(--line-dark);
    padding:12px 20px 20px;
    max-height:0;opacity:0;overflow:hidden;pointer-events:none;
    transition:max-height .28s ease, opacity .2s ease;
    box-shadow:0 26px 44px -26px rgba(0,0,0,.8);
  }
  .main-nav.is-open{max-height:420px;opacity:1;pointer-events:auto}
  .main-nav a{
    height:48px;padding:0 6px;display:flex;align-items:center;
    font-size:16px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0;
  }
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--glow)}
  .page-hero{padding:132px 0 56px;min-height:264px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
}

@media (max-width:768px){
  :root{--sec-d:52px;--sec-m:52px}
  .container{padding:0 20px}
  .grid-gutter{margin-left:-8px;margin-right:-8px}
  .grid-gutter > .cell{padding-left:8px;padding-right:8px;margin-bottom:16px}
  .brand-text strong{font-size:15px}
  .brand-text em{display:none}
  .section-head{margin-bottom:32px}
  .num-card{padding:20px}
  .num-card h3{font-size:19px}
  .checklist li{padding:18px 20px 18px 62px}
  .checklist li::before{left:20px;top:18px}
  .cta-band{padding:32px 24px;gap:24px}
  .cta-actions{width:100%;flex-direction:column}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (max-width:480px){
  body{font-size:15.5px}
  h1{font-size:30px}
  h2.h2{font-size:24px}
  .btn{width:100%;height:48px}
  .header-actions .btn-sm{width:auto;height:40px}
  .num-card{padding:18px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:12px 18px 18px}
}

/* roulang page: category4 */
:root{
  --brand:#146B58;
  --brand-2:#1E8E74;
  --accent:#E4572E;
  --accent-d:#C9451F;
  --glow:#35E0C0;
  --bg:#F7F5EF;
  --bg-alt:#F1EFE8;
  --card:#FFFFFF;
  --dark:#0F1614;
  --dark-2:#16211E;
  --ink:#17201D;
  --ink-2:#5A6663;
  --ink-3:#8A9490;
  --on-dark:#DDE7E3;
  --on-dark-2:#93A8A1;
  --line:#E7E3D9;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-img:14px;
  --r-btn:10px;
  --r-band:24px;
  --sh:0 1px 2px rgba(15,22,20,.06), 0 10px 24px -16px rgba(15,22,20,.20);
  --sh-hover:0 18px 40px -20px rgba(15,22,20,.30);
  --container:1200px;
  --sp:88px;
  --font:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4{margin:0;font-family:var(--font);color:var(--ink);letter-spacing:-0.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input{font-family:inherit;}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}

.grid-gutter{margin-left:-12px;margin-right:-12px;}
.grid-gutter > .cell{padding-left:12px;padding-right:12px;}

.section{padding:var(--sp) 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--dark);color:var(--on-dark);}
.section-dark h2,.section-dark h3{color:#fff;}

.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.18em;
  font-weight:700;
  color:var(--brand);
  margin-bottom:10px;
  text-transform:uppercase;
}
.section-dark .eyebrow{color:var(--glow);}

.section-head{max-width:720px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
h2.section-title{font-size:34px;font-weight:700;line-height:1.3;}
.section-sub{margin-top:14px;font-size:16px;color:var(--ink-2);}
.section-dark .section-sub{color:var(--on-dark-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-hover);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border-color:rgba(20,107,88,.45);}
.btn-ghost:hover{background:rgba(20,107,88,.10);border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-dark-ghost{background:rgba(53,224,192,.08);color:var(--glow);border-color:rgba(53,224,192,.45);}
.btn-dark-ghost:hover{background:rgba(53,224,192,.16);color:#fff;border-color:var(--glow);box-shadow:0 0 16px rgba(53,224,192,.28);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.arrow-link i{transition:transform .2s ease;}
.arrow-link:hover i{transform:translateX(4px);}
.section-dark .arrow-link{color:var(--glow);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:rgba(15,22,20,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.14);
  box-shadow:0 12px 30px -22px rgba(0,0,0,.75);
  transition:background .24s ease, box-shadow .24s ease;
}
.site-header.scrolled{
  background:rgba(15,22,20,.95);
  box-shadow:0 14px 34px -20px rgba(0,0,0,.85);
}
.header-inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  height:76px;
  display:flex;
  align-items:center;
  gap:26px;
  transition:height .24s ease;
}
.site-header.scrolled .header-inner{height:64px;}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand-2),var(--brand));
  color:#fff;
  font-size:17px;
  box-shadow:0 8px 18px -12px rgba(0,0,0,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--on-dark-2);letter-spacing:.08em;}

.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1 1 auto;}
.main-nav a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:rgba(255,255,255,.82);
  border-radius:8px;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:50%;bottom:6px;
  width:0;height:2px;
  background:var(--glow);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .2s ease;
}
.main-nav a:hover{color:#fff;}
.main-nav a:hover::after{width:60%;}
.main-nav a.is-active{color:#fff;font-weight:600;}
.main-nav a.is-active::after{width:60%;background:var(--accent);}

.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  transition:border-color .2s ease, background .2s ease;
}
.nav-search:focus-within{border-color:var(--glow);background:rgba(255,255,255,.12);}
.nav-search i{color:var(--on-dark-2);font-size:13px;}
.nav-search input{
  width:140px;
  height:100%;
  border:0;
  background:transparent;
  color:#fff;
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:rgba(255,255,255,.5);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  cursor:pointer;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  margin:3px auto;
  background:#fff;
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  background:var(--dark);
  padding:158px 0 62px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.24;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg, rgba(15,22,20,.94) 0%, rgba(15,22,20,.72) 55%, rgba(15,22,20,.5) 100%);
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--on-dark-2);margin-bottom:22px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:rgba(255,255,255,.28);}
.breadcrumb a{color:var(--on-dark-2);}
.breadcrumb a:hover{color:var(--glow);}
.breadcrumb .current{color:#fff;}

.page-hero h1{
  font-size:48px;
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:#fff;
  max-width:860px;
}
.page-hero .hero-sub{
  margin-top:16px;
  font-size:17px;
  color:var(--on-dark);
  max-width:680px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--on-dark);
  background:rgba(255,255,255,.06);
  border:1px solid var(--line-dark);
}
.hero-tag i{color:var(--glow);font-size:12px;}

/* ---------- 步骤条 / 时间轴 ---------- */
.timeline{position:relative;max-width:900px;margin:0 auto;}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;top:16px;bottom:16px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(20,107,88,.10));
}
.tl-item{position:relative;padding-left:78px;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-index{
  position:absolute;
  left:0;top:0;
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--card);
  border:2px solid var(--brand);
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:var(--sh);
}
.tl-body{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:var(--sh);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.30);}
.tl-body h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.tl-body p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.tl-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:rgba(20,107,88,.10);
  border-radius:999px;
  padding:5px 12px;
}
.tl-tag.is-accent{color:var(--accent);background:rgba(228,87,46,.10);}

/* ---------- 紧凑双列卡片 ---------- */
.compact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.compact-card{
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.compact-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.30);}
.compact-icon{
  flex:0 0 auto;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:rgba(20,107,88,.10);
  color:var(--brand);
  font-size:17px;
}
.compact-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.compact-card p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- 暗区数据卡 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--dark-2);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:26px 22px;
  transition:border-color .22s ease, transform .22s ease;
}
.stat-card:hover{border-color:rgba(53,224,192,.4);transform:translateY(-4px);}
.stat-num{
  font-size:38px;
  font-weight:800;
  line-height:1.1;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-num span{font-size:15px;font-weight:600;color:var(--glow);margin-left:5px;letter-spacing:0;}
.stat-label{margin-top:10px;font-size:15px;font-weight:600;color:#fff;}
.stat-desc{margin-top:6px;font-size:13px;color:var(--on-dark-2);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(20,107,88,.30);box-shadow:var(--sh);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:18px 58px 18px 22px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:12px;
  color:var(--brand);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq-item[open] summary{color:var(--brand);}
.faq-body{
  background:var(--bg-alt);
  border-radius:12px;
  margin:0 12px 12px;
  padding:16px 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ---------- 跨分类互链 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-card{
  display:block;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(20,107,88,.30);}
.cross-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:rgba(20,107,88,.08);}
.cross-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.cross-card:hover .cross-thumb img{transform:scale(1.03);}
.cross-body{padding:20px 22px 24px;}
.cross-body h3{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.cross-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:14px;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;
  background:var(--dark-2);
  border-radius:var(--r-band);
  padding:56px 48px;
  overflow:hidden;
  display:flex;
  align-items:center;
  gap:40px;
  flex-wrap:wrap;
  justify-content:space-between;
  border:1px solid var(--line-dark);
}
.cta-band::before{
  content:"";
  position:absolute;
  right:0;top:0;bottom:0;
  width:52%;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.14;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{font-size:32px;font-weight:700;color:#fff;line-height:1.3;}
.cta-text p{margin-top:12px;font-size:16px;color:var(--on-dark-2);}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--on-dark);padding:72px 0 0;}
.footer-grid{padding-bottom:48px;}
.footer-col{margin-bottom:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand strong{font-size:16px;color:#fff;}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:#fff;
  margin-bottom:18px;
}
.footer-col p{font-size:14px;color:var(--on-dark-2);line-height:1.85;margin-bottom:8px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:#9FB0AA;
  transition:color .2s ease, transform .2s ease;
  display:inline-block;
}
.footer-col ul a:hover{color:var(--glow);transform:translateX(2px);}
.footer-note{font-size:13px;color:rgba(147,168,161,.75);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--on-dark-2);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sp:68px;}
  .main-nav{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:16px 20px 24px;
    background:rgba(15,22,20,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line-dark);
    display:none;
  }
  .main-nav.open{display:flex;}
  .main-nav a{height:48px;padding:0 8px;font-size:16px;border-radius:8px;}
  .main-nav a::after{display:none;}
  .main-nav a.is-active{color:var(--accent);background:rgba(228,87,46,.10);}
  .nav-toggle{display:block;}
  .nav-search{display:none;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .page-hero h1{font-size:38px;}
  .page-hero{padding:140px 0 54px;}
  .cross-grid{grid-template-columns:repeat(2,1fr);}
}

@media screen and (max-width:768px){
  :root{--sp:52px;}
  .section-title{font-size:26px;}
  .page-hero{padding:128px 0 46px;}
  .page-hero h1{font-size:31px;}
  .page-hero .hero-sub{font-size:15px;}
  .brand-text em{display:none;}
  .compact-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .compact-card{padding:20px;}
  .cta-band{padding:36px 24px;border-radius:20px;}
  .cta-text h2{font-size:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .tl-item{padding-left:64px;}
}

@media screen and (max-width:520px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .page-hero h1{font-size:28px;}
  .page-hero{padding:120px 0 42px;}
  .section-title{font-size:23px;}
  .stats-grid{grid-template-columns:1fr;gap:14px;}
  .stat-num{font-size:32px;}
  .tl-item{padding-left:0;padding-top:60px;}
  .timeline::before{left:23px;top:16px;bottom:16px;}
  .tl-index{top:0;}
  .compact-card{padding:18px;}
  .tl-body{padding:20px;}
  .header-actions .btn-sm{padding:0 14px;}
  .btn{height:48px;}
  .btn-block-sm{width:100%;}
}

@media screen and (max-width:420px){
  .header-actions .btn-sm{display:none;}
}