/* roulang page: index */
:root{
  --field-900:#062A21;
  --field-700:#0B5B45;
  --field-500:#12A87A;
  --field-300:#2ED6A0;
  --energy:#FF6A2B;
  --ink:#0B1412;
  --sub:#47534F;
  --line:#E2E8E4;
  --page:#F6F8F5;
  --white:#FFFFFF;
  --deep:#071815;
  --grad:linear-gradient(135deg,#0B5B45,#12A87A 55%,#2ED6A0);
  --radius-big:24px;
  --radius-card:20px;
  --radius-pic:16px;
  --shadow-card:0 8px 24px rgba(6,42,33,.08);
  --shadow-lift:0 16px 40px rgba(6,42,33,.14);
  --container:1200px;
  --section-gap:80px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--page);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;line-height:1.28;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.section{padding:var(--section-gap) 0;}
.section--tight{padding:52px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{font-size:28px;}
.section-head .head-note{font-size:14px;color:var(--sub);}
.section-link{font-size:14px;font-weight:600;color:var(--field-500);display:inline-flex;align-items:center;gap:6px;}
.section-link:hover{color:var(--field-700);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--field-500);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--grad);}

/* ============ header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  transition:background-color .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  box-shadow:0 6px 22px rgba(6,42,33,.08);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:74px;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:18px;letter-spacing:0;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(18,168,122,.35);
}
.brand-name{font-size:18px;font-weight:700;color:#fff;letter-spacing:-0.01em;}
.brand-sub{display:block;font-size:11px;font-weight:500;color:rgba(255,255,255,.7);letter-spacing:.12em;}
.site-header.is-scrolled .brand-name{color:var(--ink);}
.site-header.is-scrolled .brand-sub{color:var(--sub);}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-list a{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.88);padding:8px 0;
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1);}
.nav-list a:hover,.nav-list a.active{color:#fff;}
.site-header.is-scrolled .nav-list a{color:var(--sub);}
.site-header.is-scrolled .nav-list a:hover,
.site-header.is-scrolled .nav-list a.active{color:var(--field-700);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.4);
  background:rgba(255,255,255,.12);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .22s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.24);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);background:#fff;color:var(--sub);}
.site-header.is-scrolled .icon-btn:hover{color:var(--field-700);border-color:var(--field-300);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:600;font-size:15px;
  padding:0 22px;height:44px;border-radius:999px;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,168,122,.32);}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 16px 34px rgba(18,168,122,.4);transform:translateY(-2px);}
.btn-ghost{border:1px solid rgba(255,255,255,.7);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-outline{border:1px solid var(--line);color:var(--field-700);background:#fff;}
.btn-outline:hover{background:#EAF7F1;border-color:var(--field-300);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,button:focus-visible{
  outline:2px solid var(--field-500);outline-offset:2px;border-radius:999px;
}
.btn[disabled]{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}
.burger{
  width:44px;height:44px;border-radius:14px;border:1px solid rgba(255,255,255,.4);
  background:rgba(255,255,255,.12);display:none;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:.25s ease;}
.site-header.is-scrolled .burger{border-color:var(--line);background:#fff;}
.site-header.is-scrolled .burger span{background:var(--ink);}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(7,24,21,.6);backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:90;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:88vw;max-width:360px;background:#fff;z-index:95;
  transform:translateX(100%);transition:transform .34s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px 22px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-title{font-size:16px;font-weight:700;}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  font-size:18px;color:var(--sub);cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.drawer nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto;}
.drawer nav a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--ink);font-weight:500;
}
.drawer nav a:hover{background:#EAF7F1;color:var(--field-700);}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

/* ============ hero ============ */
.hero{
  position:relative;
  min-height:min(72vh,640px);
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:120px 0 56px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(6,42,33,.94) 0%,rgba(6,42,33,.78) 38%,rgba(6,42,33,.18) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,#0B5B45,#12A87A 55%,#2ED6A0);
}
.hero-inner{position:relative;z-index:2;max-width:560px;}
.hero h1{
  color:#fff;font-size:44px;line-height:1.22;margin-bottom:16px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#2ED6A0,#FF6A2B);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:rgba(255,255,255,.86);font-size:17px;margin-bottom:28px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:38px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:12px;
}
.hero-stat{
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  border-radius:999px;padding:7px 16px;color:#fff;font-size:13px;display:flex;align-items:center;gap:8px;
}
.hero-stat b{font-size:15px;font-variant-numeric:tabular-nums;color:#2ED6A0;}
.hero-stat i{font-style:normal;color:rgba(255,255,255,.75);}

/* ============ rail ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  flex:0 0 auto;width:clamp(220px,62vw,300px);scroll-snap-align:start;
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  overflow:hidden;transition:transform .26s ease,box-shadow .26s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.rail-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B5B45;}
.rail-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rail-card:hover .rail-cover img{transform:scale(1.05);}
.rail-tag{
  position:absolute;top:10px;left:10px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--field-700);
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
}
.rail-meta{
  position:absolute;right:10px;bottom:10px;z-index:2;
  background:rgba(7,24,21,.72);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px;
  font-variant-numeric:tabular-nums;
}
.rail-body{padding:16px 18px 20px;}
.rail-body h3{font-size:16px;line-height:1.5;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:48px;}
.rail-body p{font-size:13px;color:var(--sub);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rail-card:hover h3{color:var(--field-700);}
.rail-arrow{
  position:absolute;top:38%;width:40px;height:40px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--field-700);
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:5;
  transition:all .22s ease;box-shadow:var(--shadow-card);
}
.rail-arrow:hover{background:var(--grad);color:#fff;border-color:transparent;}
.rail-arrow.prev{left:-10px;}
.rail-arrow.next{right:-10px;}
.rail-fade{
  position:absolute;top:0;right:0;width:70px;bottom:24px;pointer-events:none;
  background:linear-gradient(90deg,rgba(246,248,245,0),rgba(246,248,245,.95));
}

/* ============ featured ============ */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.feature-main{
  position:relative;border-radius:var(--radius-big);overflow:hidden;min-height:300px;
  box-shadow:var(--shadow-card);display:flex;align-items:flex-end;background:#062A21;
}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;aspect-ratio:21/9;}
.feature-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(6,42,33,.92) 0%,rgba(6,42,33,.35) 52%,rgba(6,42,33,.05) 100%);
}
.feature-main-body{position:relative;z-index:2;padding:28px;color:#fff;}
.feature-main-body h3{font-size:24px;margin:12px 0 10px;color:#fff;}
.feature-main-body p{font-size:14px;color:rgba(255,255,255,.8);max-width:560px;}
.badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:4px 12px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.24);
}
.badge b{font-variant-numeric:tabular-nums;color:#2ED6A0;font-size:14px;}
.badge-light{background:#EAF7F1;color:var(--field-700);border:1px solid #D2EEE1;}
.badge-light b{color:var(--energy);}
.feature-side{display:flex;flex-direction:column;gap:14px;}
.mini-item{
  display:flex;gap:14px;align-items:center;background:#fff;border-radius:var(--radius-pic);
  padding:12px;box-shadow:var(--shadow-card);transition:transform .24s ease,box-shadow .24s ease;
}
.mini-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);}
.mini-item img{width:80px;height:56px;border-radius:10px;object-fit:cover;flex:0 0 auto;}
.mini-item h4{font-size:15px;line-height:1.5;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-item span{font-size:12px;color:var(--sub);}
.mini-item:hover h4{color:var(--field-700);}

/* ============ channels ============ */
.channel-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.channel-card{
  background:#fff;border-radius:var(--radius-big);padding:24px;
  box-shadow:var(--shadow-card);transition:transform .26s ease,box-shadow .26s ease;
  display:flex;flex-direction:column;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.channel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.channel-head h3{font-size:20px;}
.channel-list{display:flex;flex-direction:column;}
.channel-list li a{
  display:flex;align-items:center;gap:10px;min-height:56px;padding:6px 12px;margin:0 -12px;
  border-radius:12px;font-size:14px;color:var(--sub);
}
.channel-list li a::before{
  content:"";width:6px;height:6px;border-radius:999px;background:var(--field-300);flex:0 0 auto;
}
.channel-list li a:hover{background:#EAF7F1;color:var(--field-700);}
.channel-foot{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--field-500);}
.channel-foot:hover{color:var(--energy);}

/* ============ news / cms ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.news-card{
  background:#fff;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.news-cover{aspect-ratio:4/3;overflow:hidden;background:#EAF7F1;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;}
.news-body h3{font-size:17px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.news-more{margin-top:auto;font-size:14px;font-weight:600;color:var(--field-500);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .news-more{color:var(--energy);}
.time-text{font-size:13px;color:var(--sub);font-variant-numeric:tabular-nums;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;background:#fff;
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.empty-icon{
  width:56px;height:56px;border-radius:18px;background:#EAF7F1;color:var(--field-500);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:24px;
}
.empty-state p{color:var(--sub);margin-bottom:22px;}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ============ cta band ============ */
.cta-band{background:var(--grad);border-radius:var(--radius-big);padding:40px;color:#fff;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.45),rgba(255,106,43,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
.cta-inner h2{font-size:26px;margin-bottom:10px;color:#fff;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.88);}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{
  height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;flex:1 1 220px;min-width:0;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.16);box-shadow:0 0 0 4px rgba(255,255,255,.18);}
.cta-form .btn{background:#fff;color:var(--field-700);flex:0 0 auto;}
.cta-form .btn:hover{background:#EAF7F1;transform:translateY(-2px);}
.cta-note{font-size:13px;color:rgba(255,255,255,.72);margin-top:12px;}

/* ============ trust ============ */
.trust-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.trust-item{
  background:#fff;border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);
  border:1px solid transparent;transition:border-color .22s ease,transform .22s ease;
}
.trust-item:hover{border-color:#D2EEE1;transform:translateY(-3px);}
.trust-item strong{display:block;font-size:26px;font-variant-numeric:tabular-nums;color:var(--field-700);margin-bottom:6px;}
.trust-item span{font-size:14px;color:var(--sub);}

/* ============ faq ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 22px;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  width:26px;height:26px;border-radius:999px;border:1px solid var(--line);color:var(--field-500);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;flex:0 0 auto;
  transition:transform .28s ease,background-color .28s ease,color .28s ease,border-color .28s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--grad);color:#fff;border-color:transparent;}
.faq-item[open] summary{color:var(--field-700);}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--sub);}

/* ============ footer ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.7);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:16px;max-width:320px;color:rgba(255,255,255,.62);}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:7px 0;transition:color .22s ease,transform .22s ease;}
.footer-col a:hover{color:#2ED6A0;transform:translateX(2px);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a:hover{color:#2ED6A0;}

/* ============ responsive ============ */
@media (min-width:640px){
  .trust-grid{grid-template-columns:repeat(4,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:768px){
  .cta-inner{grid-template-columns:1.05fr 1fr;}
  .cta-form{justify-content:flex-end;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
  .hero h1{font-size:46px;}
}
@media (min-width:1024px){
  .nav-arrows{display:block;}
  .rail-arrow{display:flex;}
  .feature-grid{grid-template-columns:7fr 5fr;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .channel-grid > *:nth-child(2){margin-top:32px;}
  .channel-grid > *:nth-child(4){margin-top:32px;}
  .news-grid{grid-template-columns:repeat(3,1fr);}
  .rail-fade{display:none;}
}
@media (max-width:1023px){
  .nav-list{display:none;}
  .nav-actions .icon-btn{display:none;}
  .burger{display:flex;}
  .hero{padding:110px 0 48px;}
  .hero h1{font-size:36px;}
  :root{--section-gap:64px;}
}
@media (max-width:520px){
  :root{--section-gap:48px;}
  .container{padding:0 16px;}
  .hero h1{font-size:29px;}
  .hero-lead{font-size:15px;}
  .section-head h2{font-size:23px;}
  .section-head{margin-bottom:24px;}
  .hero-cta .btn{flex:1 1 100%;}
  .cta-band{padding:28px 22px;}
  .cta-inner h2{font-size:22px;}
  .feature-main-body{padding:20px;}
  .feature-main-body h3{font-size:20px;}
  .brand-name{font-size:17px;}
}

/* roulang page: article */
:root{
  --brand:#12A87A;
  --brand-dark:#0B5B45;
  --brand-deep:#062A21;
  --brand-light:#2ED6A0;
  --brand-soft:#E9F8F1;
  --accent:#FF6A2B;
  --ink:#0B1412;
  --text:#16221f;
  --muted:#47534F;
  --line:#E2E8E4;
  --bg:#F6F8F5;
  --card:#FFFFFF;
  --dark:#071815;
  --radius-lg:24px;
  --radius:20px;
  --radius-img:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(6,42,33,.08);
  --shadow-hover:0 16px 40px rgba(6,42,33,.14);
  --grad:linear-gradient(135deg,#0B5B45,#12A87A 55%,#2ED6A0);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:700;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(18,168,122,.32);
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand-sub{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted)}
.nav-list{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-list a{position:relative;padding:6px 0;font-size:15px;color:#31403c;transition:color .2s}
.nav-list a:hover{color:var(--brand)}
.nav-list a.active{color:var(--brand);font-weight:600}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  transition:color .2s,background .2s,border-color .2s;
}
.icon-btn:hover{color:var(--brand);border-color:#BFE9D9;background:#F0FBF6}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;font-weight:600;white-space:nowrap;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(18,168,122,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(18,168,122,.34)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--brand-dark)}
.btn-ghost:hover{background:#F0FBF6;border-color:#BFE9D9;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-md{height:48px;padding:0 24px;font-size:15px}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#31403c;transition:transform .25s,opacity .25s}
body.nav-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;z-index:80;background:rgba(7,24,21,.6);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity .3s;
}
body.nav-open .nav-overlay{opacity:1;pointer-events:auto}

/* 面包屑 */
.page-band{background:#fff;border-bottom:1px solid var(--line);padding:16px 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:58vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 主体布局 */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;align-items:start;padding-top:36px;padding-bottom:72px;
}
.article-head{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.article-head h1{font-size:clamp(24px,3.1vw,32px);margin:16px 0 12px}
.article-lead{font-size:15px;color:var(--muted);line-height:1.85;margin-top:10px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark);
  border:1px solid rgba(18,168,122,.22);
}
.chip-accent{background:#FFF1E9;color:#C2470F;border-color:rgba(255,106,43,.26)}
.chip-line{background:#F2F6F4;color:var(--muted);border-color:var(--line)}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;padding-top:18px;
  border-top:1px dashed var(--line);font-size:13px;color:var(--muted);
}
.article-meta strong{color:var(--ink);font-variant-numeric:tabular-nums}

/* 正文排版 */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--shadow);margin-top:24px;
}
.prose{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text)}
.prose p{margin:0 0 1.25em}
.prose h2{
  position:relative;font-size:22px;margin:40px 0 16px;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:var(--grad);
}
.prose h3{font-size:18px;margin:28px 0 12px}
.prose a{color:var(--brand-dark);border-bottom:1px solid rgba(18,168,122,.4)}
.prose a:hover{color:var(--brand)}
.prose ul,.prose ol{margin:0 0 1.25em}
.prose ul li{position:relative;padding-left:20px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.prose ol{counter-reset:item}
.prose ol li{position:relative;padding-left:26px;margin-bottom:10px;counter-increment:item}
.prose ol li::before{
  content:counter(item);position:absolute;left:0;top:.1em;font-size:13px;font-weight:700;color:var(--brand-dark);
}
.prose blockquote{
  margin:24px 0;padding:16px 20px;background:#F0FBF6;border-left:3px solid var(--brand);
  border-radius:0 14px 14px 0;color:#23423A;
}
.prose img{border-radius:var(--radius-img);margin:24px auto}
.prose figure{margin:24px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.prose table{width:100%;border-collapse:collapse;font-size:15px}
.prose thead th{background:#F0FBF6;color:var(--brand-dark);text-align:left}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line)}
.prose tbody tr:nth-child(even){background:#FAFCFA}
.prose code{background:#F1F4F2;padding:2px 6px;border-radius:6px;font-size:14px}
.prose pre{background:var(--dark);color:#D6F5E9;padding:18px;border-radius:14px;overflow-x:auto}

/* 空状态 */
.empty-state{text-align:center;padding:40px 20px}
.empty-icon{
  width:64px;height:64px;border-radius:20px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:24px;font-weight:700;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px}

/* 侧栏 */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.side-card h2{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:14px}
.side-card h2::before{content:"";width:4px;height:14px;border-radius:3px;background:var(--grad)}
.toc-list a{display:block;font-size:14px;color:var(--muted);padding:7px 0;transition:color .2s,transform .2s}
.toc-list a:hover{color:var(--brand);transform:translateX(3px)}
.toc-list a.toc-h3{padding-left:14px;font-size:13px}
.toc-empty{font-size:13px;color:var(--muted)}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:#31403c;border-bottom:1px solid var(--line);transition:color .2s,padding .2s;
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--brand);padding-left:4px}
.side-links span{font-size:12px;color:var(--muted)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  background:#F2F6F4;border:1px solid var(--line);font-size:13px;color:var(--muted);transition:.2s;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:#BFE9D9}

/* 相关推荐 */
.related{margin-top:56px}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-title h2{font-size:24px}
.section-title .more{font-size:14px;font-weight:600;color:var(--brand-dark)}
.section-title .more:hover{color:var(--brand)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s,box-shadow .25s;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.info-card .thumb{aspect-ratio:4/3;overflow:hidden;background:#EDF2EF}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.info-card:hover .thumb img{transform:scale(1.05)}
.info-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.info-card h3{font-size:17px;line-height:1.5}
.info-card p{font-size:14px;color:var(--muted);line-height:1.7}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px}
.card-link:hover{color:var(--brand)}

/* 文末导航 */
.post-nav{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
}

/* CTA 带 */
.cta-band{margin-top:72px}
.cta-inner{
  position:relative;overflow:hidden;background:var(--grad);color:#fff;
  border-radius:var(--radius-lg);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 44px rgba(11,91,69,.26);
}
.cta-inner::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(620px 240px at 88% 8%,rgba(255,255,255,.2),transparent 70%);
}
.cta-copy{position:relative;z-index:1}
.cta-inner h2{font-size:24px;margin-bottom:8px}
.cta-inner p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.86);max-width:540px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.btn-white{height:48px;padding:0 26px;border-radius:999px;background:#fff;color:var(--brand-dark);font-weight:700;font-size:15px}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(7,24,21,.24)}
.btn-outline-white{
  height:48px;padding:0 24px;border-radius:999px;border:1px solid rgba(255,255,255,.6);
  color:#fff;font-weight:600;font-size:15px;
}
.btn-outline-white:hover{background:rgba(255,255,255,.16)}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:80px;padding:56px 0 24px}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.5)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.7);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--brand-light);transform:translateX(2px)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:rgba(255,255,255,.6)}
.footer-links a:hover{color:var(--brand-light)}

/* 响应式 */
@media (max-width:1023px){
  .nav-list{
    position:fixed;top:0;right:0;height:100vh;width:min(88vw,360px);z-index:85;
    flex-direction:column;align-items:flex-start;gap:0;margin-left:0;padding:92px 24px 32px;
    background:#fff;box-shadow:-20px 0 60px rgba(6,42,33,.18);
    transform:translateX(102%);transition:transform .35s ease;overflow-y:auto;
  }
  body.nav-open .nav-list{transform:translateX(0)}
  .nav-list a{width:100%;padding:15px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-list a::after{display:none}
  .burger{display:flex}
  .nav-actions{margin-left:auto}
  .article-layout{grid-template-columns:1fr;gap:32px;padding-top:28px}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 280px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:640px){
  .article-head,.article-body{padding:22px;border-radius:var(--radius)}
  .prose{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{width:100%}
  .cta-actions .btn-white,.cta-actions .btn-outline-white{flex:1 1 100%}
  .breadcrumb .current{max-width:46vw}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-head h1{font-size:22px}
  .nav-actions .btn-primary{display:none}
  .brand-sub{display:none}
}

/* roulang page: category1 */
:root{
  --brand:#12A87A;
  --brand-deep:#0B5B45;
  --brand-dark:#062A21;
  --brand-bright:#2ED6A0;
  --accent:#FF6A2B;
  --ink:#0B1412;
  --muted:#47534F;
  --border:#E2E8E4;
  --bg:#F6F8F5;
  --card:#FFFFFF;
  --dark:#071815;
  --grad:linear-gradient(135deg,#0B5B45 0%,#12A87A 55%,#2ED6A0 100%);
  --radius-lg:24px;
  --radius:20px;
  --radius-sm:14px;
  --radius-img:16px;
  --shadow:0 8px 24px rgba(6,42,33,.08);
  --shadow-hover:0 16px 40px rgba(6,42,33,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;border:1px solid transparent;padding:0 26px;height:48px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;white-space:nowrap}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,168,122,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,168,122,.36);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-outline{border-color:var(--border);color:var(--brand-deep);background:#fff}
.btn-outline:hover{background:#EAF7F2;border-color:var(--brand-bright);transform:translateY(-2px)}
.btn-soft{background:#EAF7F2;color:var(--brand-deep)}
.btn-soft:hover{background:#DCF2EA}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .25s ease,background .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(6,42,33,.08);background:rgba(255,255,255,.98)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;box-shadow:0 8px 18px rgba(18,168,122,.28)}
.brand-name{display:block;font-size:16px;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.brand-sub{display:block;font-size:10px;letter-spacing:.2em;color:var(--muted);line-height:1.4}
.nav-list{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-list a{position:relative;font-size:15px;color:var(--muted);padding:6px 0;transition:color .2s ease}
.nav-list a:hover{color:var(--brand-deep)}
.nav-list a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1)}
.nav-list a.active{color:var(--brand-deep);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--muted);display:grid;place-items:center;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}
.icon-btn:hover{background:#EAF7F2;color:var(--brand-deep);border-color:var(--brand-bright);transform:translateY(-2px)}
.burger{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--border);background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-deep);transition:transform .25s ease,opacity .25s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(7,24,21,.6);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:88vw;max-width:360px;background:#fff;z-index:100;transform:translateX(102%);transition:transform .34s cubic-bezier(.22,.61,.36,1);display:flex;flex-direction:column;padding:22px 20px;overflow-y:auto;box-shadow:-12px 0 40px rgba(7,24,21,.2)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--border)}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:20px;line-height:1;color:var(--muted);cursor:pointer}
.drawer-close:hover{background:#EAF7F2;color:var(--brand-deep)}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-nav a{padding:15px 6px;font-size:16px;color:var(--ink);border-bottom:1px solid #F0F4F1;transition:color .2s ease,background .2s ease,padding-left .2s ease}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand-deep);background:#F4FBF8;padding-left:12px}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- 页头 ---------- */
.page-hero{position:relative;color:#fff;padding:52px 0 46px;background-image:linear-gradient(135deg,rgba(6,42,33,.94) 0%,rgba(11,91,69,.82) 55%,rgba(6,42,33,.88) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;overflow:hidden}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad)}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.72)}
.crumb a{color:rgba(255,255,255,.72);transition:color .2s ease}
.crumb a:hover{color:var(--brand-bright);text-decoration:underline}
.crumb span.sep{opacity:.55}
.page-hero h1{font-size:40px;line-height:1.2;margin-top:18px;max-width:820px}
.page-hero .lede{margin-top:16px;max-width:760px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.86)}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{padding:8px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.32);font-size:14px;color:rgba(255,255,255,.86);transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease}
.pill:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.pill.is-current{background:var(--grad);border-color:transparent;color:#fff;font-weight:600;box-shadow:0 10px 24px rgba(18,168,122,.35)}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats .stat{display:flex;align-items:baseline;gap:8px;padding:10px 18px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);font-size:13px;color:rgba(255,255,255,.8)}
.hero-stats .stat b{font-size:18px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}

/* ---------- 通用区块 ---------- */
.section{padding:76px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{font-size:28px;line-height:1.3}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:660px}
.link-more{font-size:14px;font-weight:600;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease}
.link-more:hover{gap:12px;color:var(--brand)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:12px;font-weight:600;background:#EAF7F2;color:var(--brand-deep);border:1px solid rgba(18,168,122,.2)}
.tag-live{background:var(--accent);color:#fff;border-color:transparent}
.tag-dark{background:rgba(7,24,21,.82);color:#fff;border-color:rgba(255,255,255,.18)}
.badge-num{font-variant-numeric:tabular-nums}

/* ---------- 大图首条 ---------- */
.feature-card{display:grid;grid-template-columns:1.15fr 1fr;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .28s ease,box-shadow .28s ease}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.feature-media{position:relative;min-height:380px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feature-media .float-tags{position:absolute;left:18px;top:18px;display:flex;gap:8px;flex-wrap:wrap}
.feature-media .float-badge{position:absolute;right:18px;bottom:18px}
.feature-body{padding:34px 32px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.feature-body h3{font-size:26px;line-height:1.34}
.feature-body p{color:var(--muted);font-size:15px;line-height:1.9}
.feature-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted)}
.feature-meta span{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#F2F7F4;border:1px solid var(--border)}
.feature-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}

/* ---------- 单列条目列表 ---------- */
.entry-list{display:grid;gap:16px}
.entry{display:grid;grid-template-columns:220px minmax(0,1fr) auto;gap:22px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease}
.entry:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE9DF}
.entry-thumb{position:relative;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:#E9F2EE}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.entry:hover .entry-thumb img{transform:scale(1.05)}
.entry-thumb .thumb-tag{position:absolute;left:10px;top:10px}
.entry-main h3{font-size:19px;line-height:1.45;transition:color .22s ease}
.entry:hover .entry-main h3{color:var(--brand-deep)}
.entry-main p{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;font-size:13px;color:var(--muted)}
.entry-meta b{color:var(--brand-deep);font-variant-numeric:tabular-nums}
.entry-side{display:flex;flex-direction:column;align-items:flex-end;gap:12px;padding-right:8px}
.entry-side .state{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.entry-side .state.live{color:var(--accent);font-weight:700}

/* ---------- 开播准备步骤 ---------- */
.steps-wrap{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:34px 30px;box-shadow:var(--shadow)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:26px}
.step{position:relative;padding-top:20px;border-top:2px solid #EDF3F0}
.step::before{content:"";position:absolute;left:0;top:-2px;width:46px;height:2px;background:var(--grad)}
.step-num{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:10px;background:var(--grad);color:#fff;font-size:13px;font-weight:700;margin-bottom:12px;font-variant-numeric:tabular-nums}
.step h4{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq details[open]{border-color:#CFE9DF;box-shadow:var(--shadow-hover)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:58px;padding:14px 22px;font-size:16px;font-weight:600;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ico{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:#EAF7F2;color:var(--brand-deep);display:grid;place-items:center;font-size:16px;font-weight:700;transition:transform .28s ease,background .28s ease,color .28s ease}
.faq details[open] summary .ico{background:var(--grad);color:#fff;transform:rotate(45deg)}
.faq .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);max-width:900px}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--grad);color:#fff;padding:52px 0}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center}
.cta-inner h2{font-size:28px;line-height:1.35}
.cta-inner p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.88);max-width:520px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.cta-field{flex:1 1 240px;min-width:200px}
.cta-field label{display:block;font-size:13px;margin-bottom:8px;color:rgba(255,255,255,.85)}
.cta-field input{width:100%;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;padding:0 16px;font-size:15px;transition:border-color .22s ease,background .22s ease,box-shadow .22s ease}
.cta-field input::placeholder{color:rgba(255,255,255,.6)}
.cta-field input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.2);box-shadow:0 0 0 3px rgba(255,255,255,.22)}
.cta-form .btn-submit{height:48px;border-radius:12px;background:#fff;color:var(--brand-deep);font-weight:700;padding:0 28px;border:none;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease}
.cta-form .btn-submit:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(3,26,20,.28)}
.cta-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.75)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.45)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:0}
.footer-col a{display:block;font-size:14px;padding:7px 0;color:rgba(255,255,255,.7);transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--brand-bright);transform:translateX(2px)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a:hover{color:var(--brand-bright)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-list{display:none}
  .burger{display:flex}
  .nav-actions .btn-sm{display:none}
  .page-hero h1{font-size:34px}
  .section{padding:58px 0}
  .section-tight{padding:46px 0}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:260px;aspect-ratio:16/9}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .nav-inner{height:64px;gap:12px}
  .brand-name{font-size:15px}
  .page-hero{padding:36px 0 34px}
  .page-hero h1{font-size:28px;line-height:1.3}
  .page-hero .lede{font-size:15px}
  .section{padding:48px 0}
  .section-head{margin-bottom:24px}
  .section-head h2{font-size:23px}
  .entry{grid-template-columns:1fr;gap:16px}
  .entry-thumb{aspect-ratio:16/9}
  .entry-side{flex-direction:row;justify-content:space-between;align-items:center;width:100%;padding-right:0}
  .feature-body{padding:24px 20px}
  .feature-body h3{font-size:21px}
  .steps{grid-template-columns:1fr;gap:18px}
  .steps-wrap{padding:24px 20px}
  .cta-band{padding:40px 0}
  .cta-inner h2{font-size:22px}
  .cta-form .btn-submit{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero h1{font-size:25px}
  .hero-stats .stat{padding:8px 14px;font-size:12px}
  .hero-stats .stat b{font-size:16px}
  .pill{padding:7px 14px;font-size:13px}
  .btn{padding:0 20px;font-size:14px}
}

/* roulang page: category3 */
:root{
    --brand:#12A87A;
    --brand-deep:#0B5B45;
    --brand-dark:#062A21;
    --brand-light:#2ED6A0;
    --accent:#FF6A2B;
    --ink:#0B1412;
    --muted:#47534F;
    --line:#E2E8E4;
    --bg:#F6F8F5;
    --card:#FFFFFF;
    --night:#071815;
    --grad:linear-gradient(135deg,#0B5B45 0%,#12A87A 55%,#2ED6A0 100%);
    --grad-soft:linear-gradient(135deg,rgba(11,91,69,.08),rgba(46,214,160,.10));
    --r-xl:24px;
    --r-lg:20px;
    --r-img:16px;
    --r-btn:999px;
    --sh-1:0 8px 24px rgba(6,42,33,.08);
    --sh-2:0 16px 40px rgba(6,42,33,.14);
    --sec:80px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;padding:0;background:var(--bg);color:var(--ink);
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;line-height:28px;letter-spacing:-0.01em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--r-img)}
  a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease}
  button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
  input{font:inherit}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;line-height:1.28}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  .section{padding:var(--sec) 0}
  .section-sm{padding:56px 0}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
  .sec-head h2{font-size:28px}
  .sec-head p{color:var(--muted);font-size:15px;max-width:620px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}

  /* Header */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background-color .25s ease}
  .site-header.is-scrolled{box-shadow:0 6px 20px rgba(6,42,33,.08)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px}
  .brand-mark{width:40px;height:40px;border-radius:13px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:18px;box-shadow:0 6px 16px rgba(6,42,33,.18);flex:0 0 auto}
  .brand-name{display:block;font-weight:700;font-size:17px;line-height:1.2;letter-spacing:-0.02em}
  .brand-sub{display:block;font-size:10px;letter-spacing:.18em;color:#8A9995;line-height:1.4}
  .nav-list{display:flex;align-items:center;gap:28px}
  .nav-list a{position:relative;font-size:15px;color:#33403C;padding:6px 0}
  .nav-list a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
  .nav-list a:hover{color:var(--brand-deep)}
  .nav-list a:hover::after,.nav-list a.active::after{transform:scaleX(1)}
  .nav-list a.active{color:var(--brand-deep);font-weight:700}
  .nav-actions{display:flex;align-items:center;gap:12px}
  .icon-btn{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;color:#33403C;display:grid;place-items:center;transition:all .2s ease}
  .icon-btn:hover{border-color:var(--brand);color:var(--brand-deep);box-shadow:var(--sh-1)}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:700;font-size:15px;padding:13px 26px;transition:all .22s ease;white-space:nowrap}
  .btn-sm{padding:10px 20px;font-size:14px}
  .btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(18,168,122,.28)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,168,122,.36);filter:brightness(1.05)}
  .btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.06)}
  .btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
  .btn-outline{border:1px solid var(--brand);color:var(--brand-deep);background:#fff}
  .btn-outline:hover{background:#E9F7F2;transform:translateY(-2px);box-shadow:var(--sh-1)}
  .burger{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;padding:11px 10px;flex-direction:column;justify-content:space-between}
  .burger span{display:block;height:2px;border-radius:2px;background:#22302C}

  /* Drawer */
  .drawer-mask{position:fixed;inset:0;background:rgba(7,24,21,.6);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80}
  .drawer-mask.open{opacity:1;visibility:visible}
  .drawer{position:fixed;top:0;right:0;height:100%;width:88vw;max-width:360px;background:#fff;z-index:90;transform:translateX(105%);transition:transform .32s cubic-bezier(.22,.61,.36,1);display:flex;flex-direction:column;padding:24px 22px;box-shadow:-16px 0 40px rgba(6,42,33,.18)}
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
  .drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:#33403C}
  .drawer-nav a{display:block;padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;color:#2A3733}
  .drawer-nav a.active{color:var(--brand-deep);font-weight:700}
  .drawer-foot{margin-top:auto;padding-top:20px}

  /* Page hero */
  .page-hero{position:relative;background:var(--brand-dark);color:#fff;overflow:hidden}
  .page-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.34}
  .page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(6,42,33,.94) 0%,rgba(11,91,69,.78) 48%,rgba(6,42,33,.55) 100%)}
  .page-hero .hero-inner{position:relative;z-index:2;padding:64px 0 56px;max-width:760px}
  .page-hero h1{font-size:40px;line-height:1.2}
  .page-hero .lede{margin-top:16px;font-size:16px;line-height:30px;color:rgba(255,255,255,.84);max-width:640px}
  .hero-sep{height:3px;border-radius:3px;background:var(--grad);width:92px;margin-top:24px}
  .crumb{font-size:13px;color:#7C8A86;display:flex;gap:8px;align-items:center;padding:16px 0 0;position:relative;z-index:2}
  .crumb a:hover{color:var(--brand-light);text-decoration:underline}

  /* chips */
  .chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .chip{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;font-size:14px;background:#fff;border:1px solid var(--line);color:#33403C;transition:all .2s ease}
  .chip:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-1)}
  .chip.is-current{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(18,168,122,.32)}
  .tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;font-size:13px;font-weight:700;background:#E9F7F2;color:var(--brand-deep);border:1px solid rgba(18,168,122,.22)}
  .tag-dark{background:rgba(7,24,21,.9);color:#fff;border-color:transparent}
  .tag-accent{background:#FFF0E8;color:#B33F0C;border-color:rgba(255,106,43,.28)}

  /* Timeline */
  .timeline{position:relative;margin-top:8px}
  .timeline::before{content:"";position:absolute;left:27px;top:16px;bottom:24px;width:2px;border-radius:2px;background:linear-gradient(180deg,rgba(18,168,122,.55),rgba(18,168,122,.06))}
  .tl-item{position:relative;padding-left:88px;margin-bottom:28px}
  .tl-num{position:absolute;left:0;top:4px;width:56px;height:56px;border-radius:18px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;box-shadow:0 10px 24px rgba(6,42,33,.2);font-variant-numeric:tabular-nums}
  .tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;display:flex;gap:24px;align-items:flex-start}
  .tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,168,122,.32)}
  .tl-body{flex:1 1 auto;min-width:0}
  .tl-body h3{font-size:20px;line-height:28px}
  .tl-body p{margin-top:10px;color:var(--muted);font-size:15px;line-height:26px}
  .tl-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px}
  .tl-thumb{flex:0 0 190px;width:190px;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
  .meta-text{font-size:13px;color:#7C8A86}

  /* data strip */
  .data-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .data-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease}
  .data-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
  .data-card .val{font-size:32px;font-weight:700;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
  .data-card .lbl{margin-top:8px;font-size:14px;color:var(--muted)}

  /* Steps band */
  .band{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:32px;box-shadow:var(--sh-1)}
  .step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px}
  .step{position:relative;padding:22px;border-radius:var(--r-lg);background:var(--grad-soft);border:1px solid rgba(18,168,122,.16)}
  .step .k{font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.1em}
  .step h4{margin-top:10px;font-size:17px}
  .step p{margin-top:10px;font-size:15px;line-height:26px;color:var(--muted)}

  /* FAQ */
  .faq{max-width:880px;margin:0 auto}
  .faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);margin-bottom:14px;box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
  .faq details[open]{border-color:rgba(18,168,122,.35);box-shadow:var(--sh-2)}
  .faq summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;font-weight:700;font-size:16px}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary .pm{flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand-deep);font-size:16px;transition:transform .25s ease,background-color .25s ease}
  .faq details[open] summary .pm{transform:rotate(45deg);background:#E9F7F2}
  .faq .ans{padding:0 24px 20px;font-size:15px;line-height:27px;color:var(--muted)}

  /* CTA */
  .cta-band{background:var(--grad);border-radius:var(--r-xl);padding:40px;color:#fff;display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;box-shadow:0 20px 44px rgba(11,91,69,.28);position:relative;overflow:hidden}
  .cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.09)}
  .cta-band h2{font-size:28px;position:relative;z-index:2}
  .cta-band p{margin-top:12px;font-size:15px;line-height:26px;color:rgba(255,255,255,.86);position:relative;z-index:2}
  .cta-form{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}
  .cta-form input{flex:1 1 220px;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.08);color:#fff;padding:0 16px;transition:all .2s ease}
  .cta-form input::placeholder{color:rgba(255,255,255,.6)}
  .cta-form input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.28)}
  .cta-form .btn-light{background:#fff;color:var(--brand-deep);border-radius:var(--r-btn);padding:0 26px;height:48px;display:inline-flex;align-items:center;font-weight:700}
  .cta-form .btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(7,24,21,.24)}

  /* Footer */
  .site-footer{background:var(--night);color:rgba(255,255,255,.7);margin-top:var(--sec);padding:64px 0 0;font-size:15px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
  .site-footer .brand-name,.site-footer .brand-sub{color:#fff}
  .site-footer .brand-sub{color:rgba(255,255,255,.5)}
  .footer-brand p{margin-top:18px;font-size:14px;line-height:24px;color:rgba(255,255,255,.6);max-width:320px}
  .footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:0}
  .footer-col a{display:block;padding:7px 0;color:rgba(255,255,255,.7);font-size:14px;transition:all .2s ease}
  .footer-col a:hover{color:var(--brand-light);transform:translateX(2px)}
  .footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 32px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}
  .footer-links{display:flex;gap:18px;flex-wrap:wrap}
  .footer-links a:hover{color:var(--brand-light)}

  @media (max-width:1024px){
    :root{--sec:60px}
    .nav-list{display:none}
    .burger{display:flex}
    .cta-band{grid-template-columns:1fr;padding:32px}
    .data-strip{grid-template-columns:repeat(2,1fr)}
    .step-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  }
  @media (max-width:768px){
    .page-hero h1{font-size:30px}
    .tl-card{flex-direction:column-reverse}
    .tl-thumb{width:100%;flex:1 1 auto;aspect-ratio:16/9}
    .tl-item{padding-left:70px}
    .tl-num{width:48px;height:48px;border-radius:16px;font-size:15px}
    .timeline::before{left:23px}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    :root{--sec:48px}
    .page-hero .hero-inner{padding:48px 0 40px}
    .page-hero h1{font-size:26px}
    .nav-actions .btn-primary{display:none}
    .data-strip{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .cta-form input{flex:1 1 100%}
    .cta-form .btn-light{width:100%;justify-content:center}
    .brand-mark{width:36px;height:36px;font-size:16px}
  }

/* roulang page: category2 */
:root{
  --brand:#12A87A;
  --brand-deep:#0B5B45;
  --brand-dark:#062A21;
  --brand-light:#2ED6A0;
  --accent:#FF6A2B;
  --ink:#0B1412;
  --muted:#47534F;
  --line:#E2E8E4;
  --bg:#F6F8F5;
  --card:#FFFFFF;
  --dark:#071815;
  --grad:linear-gradient(135deg,#0B5B45,#12A87A 55%,#2ED6A0);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-pill:999px;
  --sh-card:0 8px 24px rgba(6,42,33,.08);
  --sh-hover:0 16px 40px rgba(6,42,33,.14);
  --sec:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:28px;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--ink);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,filter .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(18,168,122,.28);}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 14px 30px rgba(18,168,122,.36);transform:translateY(-2px);}
.btn-outline{border-color:var(--brand);color:var(--brand);background:#fff;}
.btn-outline:hover{background:#E9F7F1;transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.06);}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header .nav-inner{display:flex;align-items:center;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:20px;font-weight:700;
  box-shadow:0 6px 16px rgba(18,168,122,.32);
}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.15;letter-spacing:-.02em;}
.brand-sub{display:block;font-size:10px;letter-spacing:.18em;opacity:.62;line-height:1.4;}

.nav-list{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-list a{position:relative;font-size:15px;font-weight:500;padding:6px 0;transition:color .25s ease;}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad);opacity:0;transform:scaleX(.4);transition:opacity .25s ease,transform .25s ease;
}
.nav-list a:hover::after,.nav-list a.active::after{opacity:1;transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid currentColor;background:transparent;
  display:grid;place-items:center;cursor:pointer;opacity:.85;transition:.25s ease;
}
.icon-btn:hover{opacity:1;transform:translateY(-1px);}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid currentColor;background:transparent;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:currentColor;transition:.25s ease;}

/* 未滚动：浮于深色横幅之上 */
.site-header{color:#fff;}
.site-header .nav-list a{color:rgba(255,255,255,.88);}
.site-header .nav-list a:hover,.site-header .nav-list a.active{color:#fff;}
.site-header .brand-name{color:#fff;}
.site-header .brand-sub{color:rgba(255,255,255,.7);}
.site-header .icon-btn{color:rgba(255,255,255,.85);border-color:rgba(255,255,255,.45);}

/* 滚动后：白底 */
.site-header.scrolled{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 4px 20px rgba(6,42,33,.08);
  color:var(--ink);
}
.site-header.scrolled .nav-list a{color:var(--muted);}
.site-header.scrolled .nav-list a:hover,.site-header.scrolled .nav-list a.active{color:var(--ink);}
.site-header.scrolled .brand-name{color:var(--ink);}
.site-header.scrolled .brand-sub{color:var(--muted);}
.site-header.scrolled .icon-btn{color:var(--muted);border-color:var(--line);}

/* ============ 移动端抽屉 ============ */
.overlay{
  position:fixed;inset:0;background:rgba(7,24,21,.6);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:70;
}
.overlay.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:88vw;max-width:360px;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .32s ease;
  padding:24px;display:flex;flex-direction:column;overflow-y:auto;box-shadow:-20px 0 50px rgba(6,42,33,.2);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer a.drawer-link{padding:15px 2px;font-size:16px;font-weight:500;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer a.drawer-link.active{color:var(--brand);}
.drawer .drawer-cta{margin-top:auto;padding-top:22px;}
.drawer .drawer-cta .btn{width:100%;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--muted);
}

/* ============ 分类页头 ============ */
.cat-hero{position:relative;padding:140px 0 76px;color:#fff;overflow:hidden;background:var(--brand-dark);}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.34;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(6,42,33,.94),rgba(11,91,69,.78) 55%,rgba(6,42,33,.62));
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px;}
.crumb a:hover{color:var(--brand-light);text-decoration:underline;}
.cat-hero h1{font-size:clamp(28px,4.2vw,40px);line-height:1.22;color:#fff;max-width:820px;}
.hero-lead{margin-top:16px;max-width:660px;font-size:16px;line-height:30px;color:rgba(255,255,255,.82);}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);
  font-size:13px;color:rgba(255,255,255,.9);
}
.meta-chip b{font-variant-numeric:tabular-nums;font-size:15px;color:#fff;}

/* 分类互链胶囊条 */
.pill-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.08);
  font-size:14px;color:#fff;transition:.25s ease;
}
.pill:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
.pill.is-active{background:var(--grad);border-color:transparent;box-shadow:0 10px 24px rgba(18,168,122,.36);}

/* ============ 数据徽章条 ============ */
.stat-wrap{position:relative;z-index:5;margin-top:-40px;}
.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-card);
}
.stat-item{background:#fff;padding:22px 20px;}
.stat-num{display:block;font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--muted);}

/* ============ 区块 ============ */
.section{padding:var(--sec) 0;}
.section-tight{padding:44px 0 0;}
.section-tint{background:#EDF4F0;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(22px,3vw,28px);line-height:1.3;}
.sec-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}

/* ============ 双列杂志错位 ============ */
.mag-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.mag-col{display:flex;flex-direction:column;}
.mag-item{
  background:#fff;border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-card);
  margin-bottom:32px;transition:transform .28s ease,box-shadow .28s ease;
}
.mag-item:last-child{margin-bottom:0;}
.mag-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.mag-thumb{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mag-body{padding:22px;}
.mag-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--r-pill);
  background:#E9F7F1;border:1px solid #CBEBDD;color:var(--brand-deep);
  font-size:12px;font-weight:600;line-height:18px;
}
.tag-dark{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}
.tag-accent{background:#FFF0E8;border-color:#FFD8C4;color:#C4491A;}
.mag-body h3{margin:14px 0 10px;font-size:19px;line-height:28px;}
.mag-body p{font-size:14.5px;line-height:26px;color:var(--muted);margin-bottom:16px;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .25s ease,color .25s ease;
}
.link-more:hover{gap:11px;color:var(--brand-deep);}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:1fr;gap:28px;counter-reset:step;}
.step{position:relative;padding-left:22px;}
.step::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--grad);opacity:.9;
}
.step-num{font-size:34px;font-weight:700;line-height:1;color:var(--brand);opacity:.35;font-variant-numeric:tabular-nums;}
.step h3{margin:12px 0 8px;font-size:18px;line-height:26px;}
.step p{font-size:14.5px;line-height:26px;color:var(--muted);}

/* ============ 图文要点 ============ */
.split{display:grid;grid-template-columns:1fr;gap:34px;align-items:center;}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-card);}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 14px;border-radius:14px;
  min-height:56px;transition:background .25s ease,transform .25s ease;
}
.check-list li:hover{background:#EAF6F1;transform:translateX(2px);}
.check-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:#E9F7F1;color:var(--brand);
  display:grid;place-items:center;margin-top:3px;
}
.check-list strong{display:block;font-size:15.5px;line-height:24px;}
.check-list span{display:block;margin-top:4px;font-size:14px;line-height:24px;color:var(--muted);}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;min-height:56px;padding:17px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--ink);transition:color .25s ease;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);transition:.28s ease;
}
.faq details[open] .faq-icon{transform:rotate(45deg);background:var(--brand);border-color:var(--brand);color:#fff;}
.faq-body{padding:0 0 22px;font-size:15px;line-height:28px;color:var(--muted);max-width:840px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--grad);color:#fff;border-radius:var(--r-lg);
  padding:36px 26px;display:grid;grid-template-columns:1fr;gap:26px;
  box-shadow:0 18px 46px rgba(11,91,69,.28);
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,28px);line-height:1.3;}
.cta-band p{margin-top:12px;font-size:15px;line-height:26px;color:rgba(255,255,255,.85);max-width:520px;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input{
  flex:1 1 220px;min-width:0;height:48px;border-radius:12px;padding:0 16px;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);color:#fff;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.24);}
.cta-form button{
  flex:0 0 auto;height:48px;padding:0 28px;border-radius:12px;border:none;cursor:pointer;
  background:#fff;color:var(--brand-deep);font-weight:700;font-size:15px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.cta-form button:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18);}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.72);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.55);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:26px;max-width:330px;color:rgba(255,255,255,.7);}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;padding:7px 0;color:rgba(255,255,255,.7);transition:color .25s ease,transform .25s ease;}
.footer-col a:hover{color:var(--brand-light);transform:translateX(2px);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-links a:hover{color:var(--brand-light);}
.footer-friend{margin-top:16px;font-size:13px;color:rgba(255,255,255,.5);}
.footer-friend a{color:rgba(255,255,255,.7);text-decoration:underline;}
.footer-friend a:hover{color:var(--brand-light);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-list{display:none;}
}
@media (min-width:640px){
  .stat-strip{grid-template-columns:repeat(4,1fr);}
  .container{padding:0 20px;}
}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(2,1fr);gap:36px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;}
  .cta-band{padding:46px 40px;}
}
@media (min-width:1024px){
  :root{--sec:80px;}
  .burger{display:none;}
  .mag-grid{grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
  .mag-col:nth-child(2){margin-top:40px;}
  .steps{grid-template-columns:repeat(4,1fr);}
  .split{grid-template-columns:1.05fr 1fr;gap:48px;}
  .cta-band{grid-template-columns:1.05fr 1fr;align-items:center;padding:52px;}
  .cat-hero{padding:150px 0 86px;}
}
@media (max-width:519px){
  .cat-hero{padding:122px 0 68px;}
  .hero-lead{font-size:15px;line-height:28px;}
  .mag-body{padding:18px;}
  .btn{padding:11px 20px;}
}

/* roulang page: category4 */
:root{
  --brand:#12A87A;
  --brand-dark:#0B5B45;
  --brand-deep:#062A21;
  --brand-light:#2ED6A0;
  --accent:#FF6A2B;
  --ink:#0B1412;
  --ink-soft:#47534F;
  --line:#E2E8E4;
  --bg:#F6F8F5;
  --card:#FFFFFF;
  --dark:#071815;
  --grad:linear-gradient(135deg,#0B5B45,#12A87A 55%,#2ED6A0);
  --grad-warm:linear-gradient(135deg,#12A87A,#2ED6A0 70%,#FF6A2B);
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-btn:999px;
  --sh:0 8px 24px rgba(6,42,33,.08);
  --sh-hover:0 16px 40px rgba(6,42,33,.14);
  --t:.3s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:-0.02em;line-height:1.3}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(18,168,122,.22)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-tight{padding:56px 0}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
  border-bottom:1px solid transparent;
}
.site-header .nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.site-header.is-solid{
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 2px 16px rgba(6,42,33,.08);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-weight:700;font-size:18px;
  box-shadow:0 6px 16px rgba(18,168,122,.32);
}
.brand-name{
  display:block;font-size:17px;font-weight:700;letter-spacing:-0.01em;
  color:#fff;line-height:1.2;transition:color var(--t);
}
.brand-sub{
  display:block;font-size:10px;letter-spacing:.18em;
  color:rgba(255,255,255,.65);transition:color var(--t);
}
.site-header.is-solid .brand-name{color:var(--ink)}
.site-header.is-solid .brand-sub{color:var(--ink-soft)}

.nav-list{display:flex;align-items:center;gap:28px}
.nav-list a{
  position:relative;font-size:15px;font-weight:500;padding:6px 0;
  color:rgba(255,255,255,.86);transition:color var(--t);
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform var(--t);
}
.nav-list a:hover,
.nav-list a.active{color:#fff}
.nav-list a:hover::after,
.nav-list a.active::after{transform:scaleX(1)}
.site-header.is-solid .nav-list a{color:var(--ink-soft)}
.site-header.is-solid .nav-list a:hover,
.site-header.is-solid .nav-list a.active{color:var(--brand-dark)}

.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.08);
  transition:var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.2)}
.site-header.is-solid .icon-btn{
  color:var(--ink);border-color:var(--line);background:#fff;
}
.site-header.is-solid .icon-btn:hover{
  border-color:var(--brand);color:var(--brand-dark);background:#EAF7F2;
}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.08);
  transition:var(--t);
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:var(--t)}
.site-header.is-solid .burger{border-color:var(--line);background:#fff}
.site-header.is-solid .burger span{background:var(--ink)}

/* ---------- Drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:70;
  background:rgba(7,24,21,.6);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer-overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:88vw;max-width:360px;background:#fff;
  transform:translateX(100%);transition:transform .38s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 26px;
  box-shadow:-12px 0 40px rgba(6,42,33,.18);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-soft);transition:var(--t);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand-dark);background:#EAF7F2}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:block;padding:14px 12px;border-radius:14px;
  font-size:16px;font-weight:500;color:var(--ink-soft);transition:var(--t);
}
.drawer-nav a:hover{background:#EAF7F2;color:var(--brand-dark)}
.drawer-nav a.active{background:#EAF7F2;color:var(--brand-dark);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ---------- 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;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),filter var(--t);
}
.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(18,168,122,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 30px rgba(18,168,122,.36);transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--line);color:var(--brand-dark);background:#fff}
.btn-outline:hover{background:#EAF7F2;border-color:var(--brand);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;isolation:isolate;
  background:#062A21;
  padding:150px 0 96px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center 30%;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(6,42,33,.94) 0%,rgba(7,24,21,.82) 45%,rgba(11,91,69,.42) 100%);
}
.page-hero .hero-inner{max-width:760px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px;
}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand-light);text-decoration:underline}
.breadcrumb span{color:rgba(255,255,255,.4)}
.page-hero h1{
  font-size:40px;line-height:1.24;color:#fff;margin-bottom:18px;
  max-width:680px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#2ED6A0,#8CF2D0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.8);
  max-width:600px;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.cat-pills{display:flex;flex-wrap:wrap;gap:10px}
.cat-pills a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:500;
  color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.26);
  background:rgba(255,255,255,.06);
  transition:var(--t);
}
.cat-pills a:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px)}
.cat-pills a.active{
  background:var(--grad);border-color:transparent;color:#fff;font-weight:700;
  box-shadow:0 8px 20px rgba(18,168,122,.34);
}

/* ---------- Stats band ---------- */
.stats-band{margin-top:-46px;position:relative;z-index:5}
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:#fff;border-radius:var(--r-lg);
  box-shadow:0 16px 44px rgba(6,42,33,.12);
  border:1px solid var(--line);
  padding:26px 28px;
}
.stat-item{padding:0 6px;border-left:1px solid var(--line)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{
  font-size:28px;font-weight:700;color:var(--brand-dark);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-num span{font-size:15px;font-weight:600;color:var(--ink-soft);margin-left:2px}
.stat-label{font-size:13px;color:var(--ink-soft);margin-top:4px}

/* ---------- Section head ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:28px;flex-wrap:wrap;margin-bottom:40px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad)}
.sec-head h2{font-size:28px;line-height:1.35;color:var(--ink)}
.sec-desc{
  max-width:460px;font-size:15px;line-height:1.8;color:var(--ink-soft);
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-dark);transition:var(--t);
}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- Download cards ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.dl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(18,168,122,.35)}
.dl-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:#0B5B45}
.dl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.dl-card:hover .dl-thumb img{transform:scale(1.06)}
.dl-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,42,33,.42) 0%,rgba(6,42,33,0) 55%);
}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-btn);font-size:11px;font-weight:600;letter-spacing:.02em;
}
.pill-solid{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  border:1px solid rgba(18,168,122,.28);
}
.dl-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.dl-meta{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--ink-soft);margin-bottom:10px;
}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;
  border-radius:var(--r-btn);font-size:11px;font-weight:700;
  background:#EAF7F2;color:var(--brand-dark);
  border:1px solid rgba(18,168,122,.24);
  font-variant-numeric:tabular-nums;
}
.badge-warm{background:#FFF1E9;color:#C24A15;border-color:rgba(255,106,43,.28)}
.dl-body h3{font-size:17px;margin-bottom:8px;color:var(--ink)}
.dl-body p{font-size:13.5px;line-height:1.7;color:var(--ink-soft);margin-bottom:14px;flex:1}

/* ---------- Install steps ---------- */
.steps-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 40px;box-shadow:var(--sh);
}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative}
.step{position:relative;padding-right:8px}
.step-num{
  width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-weight:700;font-size:17px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
  box-shadow:0 8px 20px rgba(18,168,122,.26);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.75;color:var(--ink-soft)}

/* ---------- Notes two column ---------- */
.notes{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.note-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:30px 28px;box-shadow:var(--sh);transition:transform var(--t),box-shadow var(--t);
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.note-card h3{font-size:19px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.note-card h3::before{
  content:"";width:4px;height:18px;border-radius:2px;background:var(--grad);
}
.note-list li{
  display:flex;gap:10px;font-size:14.5px;line-height:1.7;
  color:var(--ink-soft);padding:11px 0;
  border-bottom:1px dashed var(--line);
}
.note-list li:last-child{border-bottom:0}
.note-list strong{color:var(--ink);font-weight:600;flex:none}
.dot-mark{
  width:6px;height:6px;border-radius:50%;background:var(--brand-light);
  margin-top:10px;flex:none;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:rgba(18,168,122,.38);box-shadow:var(--sh)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;padding:18px 60px 18px 24px;
  position:relative;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;transition:background var(--t),color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#EAF7F2;color:var(--brand-dark)}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;
  transform:translateY(-50%);
  font-size:22px;font-weight:400;line-height:1;
  color:var(--brand);transition:transform var(--t),color var(--t);
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}
.faq-body{
  padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-soft);
  border-top:1px solid var(--line);padding-top:18px;
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:0;
  padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.6;
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-copy{max-width:520px}
.cta-copy h2{font-size:28px;color:#fff;margin-bottom:12px;line-height:1.35}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86)}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.cta-field{display:flex;flex-direction:column;gap:6px}
.cta-field label{font-size:13px;color:rgba(255,255,255,.86);font-weight:500}
.cta-input{
  height:48px;width:280px;max-width:100%;
  border-radius:12px;padding:0 16px;font-size:15px;
  color:#fff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.35);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.cta-input::placeholder{color:rgba(255,255,255,.6)}
.cta-input:focus{
  outline:none;border-color:#fff;background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(255,255,255,.22);
}
.cta-btn{
  height:48px;padding:0 28px;border-radius:12px;
  background:#fff;color:var(--brand-dark);font-weight:700;font-size:15px;
  transition:transform var(--t),box-shadow var(--t);
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(7,24,21,.24)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-mark{width:36px;height:36px;font-size:17px}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:rgba(255,255,255,.5)}
.footer-brand p{
  margin-top:18px;font-size:14px;line-height:1.85;
  color:rgba(255,255,255,.6);max-width:320px;
}
.footer-col h3{
  font-size:15px;color:#fff;margin-bottom:18px;font-weight:700;letter-spacing:0;
}
.footer-col a{
  display:block;font-size:14px;color:rgba(255,255,255,.7);
  padding:7px 0;transition:color var(--t),transform var(--t);
}
.footer-col a:hover{color:var(--brand-light);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{transition:color var(--t)}
.footer-links a:hover{color:var(--brand-light)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-list{gap:20px}
  .nav-list a{font-size:14px}
}
@media (max-width:1024px){
  .nav-list{display:none}
  .burger{display:inline-flex}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:22px 16px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .section{padding:52px 0}
  .section-tight{padding:40px 0}
  .page-hero{padding:120px 0 76px}
  .page-hero h1{font-size:32px}
  .hero-lead{font-size:16px}
  .sec-head{margin-bottom:28px}
  .sec-head h2{font-size:23px}
  .notes{grid-template-columns:1fr}
  .steps-wrap{padding:30px 22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-form{width:100%}
  .cta-input{width:100%}
  .cta-field{width:100%}
  .cta-btn{width:100%}
  .icon-btn{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .page-hero{padding:110px 0 64px}
  .page-hero h1{font-size:28px}
  .nav-inner{height:64px}
  .dl-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:22px}
  .stats-row{grid-template-columns:1fr;padding:22px}
  .stat-item{border-left:0;padding:0;border-top:1px dashed var(--line);padding-top:14px}
  .stat-item:first-child{border-top:0;padding-top:0}
  .hero-cta .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:52px}
}