/* roulang page: index */
:root{
  --ink:#1B1F1E;
  --ink-2:#5A625F;
  --brand:#12504B;
  --brand-d:#0B3A36;
  --brand-l:#1E6A63;
  --accent:#E0862F;
  --accent-l:#F6E3CB;
  --bg:#F7F6F2;
  --bg-alt:#EDF2F0;
  --deep:#0E3B37;
  --surface:#FFFFFF;
  --line:#DCDCD4;
  --ok:#2F8F6B;
  --warn:#C6553A;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(18,80,75,.06),0 8px 24px -12px rgba(18,80,75,.18);
  --sh-2:0 2px 6px rgba(18,80,75,.10),0 16px 36px -14px rgba(18,80,75,.26);
  --sp-xs:8px;
  --sp-s:16px;
  --sp-m:24px;
  --sp-l:40px;
  --sp-xl:88px;
  --fs-h1:clamp(30px,3.6vw,46px);
  --fs-h2:clamp(24px,2.5vw,34px);
  --fs-h3:21px;
  --fs-body:16.5px;
  --fs-small:14px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--accent);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}
.foundation-reset a{color:var(--brand);}
.foundation-reset a:hover{color:var(--accent);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-xl) 0;}
.section-alt{background:var(--bg-alt);}
.section-tight{padding:56px 0;}

.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  color:var(--brand-l);
  background:rgba(30,106,99,.10);
  border:1px solid rgba(30,106,99,.18);
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:16px;
}
h1,.h1{font-size:var(--fs-h1);line-height:1.25;font-weight:700;letter-spacing:0;}
h2,.h2{font-size:var(--fs-h2);line-height:1.35;font-weight:700;letter-spacing:0;}
h3,.h3{font-size:var(--fs-h3);line-height:1.5;font-weight:600;}
h4,.h4{font-size:17px;line-height:1.5;font-weight:600;}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);}
.muted{color:var(--ink-2);font-size:var(--fs-small);line-height:1.7;}
.section-head{max-width:760px;margin-bottom:var(--sp-l);}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:var(--sp-l);}
.head-row .section-head{margin-bottom:0;}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;}
.link-more:hover{color:var(--accent);border-bottom-color:var(--accent);}
.link-more i{transition:transform .2s ease-out;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:90;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s ease-out;}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.brand-bar{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);font-weight:700;font-size:18px;flex:0 0 auto;}
.logo:hover{color:var(--brand-d);}
.logo-mark{color:var(--brand);flex:0 0 auto;}
.logo-text{white-space:nowrap;letter-spacing:.01em;}
.header-search{flex:1 1 auto;max-width:340px;display:flex;}
.header-search form{display:flex;width:100%;border:1px solid var(--line);border-radius:var(--r-input);overflow:hidden;background:var(--bg);transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.header-search form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,134,47,.22);}
.header-search input{flex:1 1 auto;border:0;background:transparent;padding:9px 14px;font-size:14px;color:var(--ink);outline:none;}
.header-search button{border:0;background:transparent;color:var(--brand-l);padding:0 14px;cursor:pointer;font-size:14px;}
.header-search button:hover{color:var(--accent);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);color:var(--brand);cursor:pointer;align-items:center;justify-content:center;}

.channel-bar{border-top:1px solid var(--line);background:var(--surface);}
.channel-nav{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x proximity;-ms-overflow-style:none;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  flex:0 0 auto;
  scroll-snap-align:start;
  font-size:15px;
  padding:7px 20px;
  border-radius:999px;
  border:1px solid var(--brand);
  color:var(--brand);
  line-height:1.3;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.channel-nav a:hover{background:rgba(246,227,203,.6);color:var(--brand-d);}
.channel-nav a.active{background:var(--brand);color:#fff;border-color:var(--brand);}
.channel-nav a.active:hover{background:var(--brand-d);}

.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface);padding:12px 0 20px;}
.mobile-menu.is-open{display:block;}
.mobile-menu ul{display:flex;flex-direction:column;gap:6px;}
.mobile-menu a{display:block;padding:12px 16px;border-radius:var(--r-btn);border:1px solid var(--line);font-size:15px;color:var(--brand);}
.mobile-menu a.active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  padding:13px 26px;border-radius:var(--r-btn);
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn i{transition:transform .2s ease-out;}
.btn:hover i{transform:translateX(2px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:rgba(246,227,203,.65);color:var(--brand-d);}
.btn-on-dark{background:#fff;color:var(--brand-d);}
.btn-on-dark:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn[disabled]{background:#D6D9D5;border-color:#D6D9D5;color:#8C918E;box-shadow:none;cursor:not-allowed;}

/* ---------- Badges / chips ---------- */
.badge{
  display:inline-block;font-size:12px;line-height:1.4;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:rgba(30,106,99,.10);color:var(--brand-l);border:1px solid rgba(30,106,99,.20);
}
.badge-accent{background:var(--accent-l);color:#8A4E12;border-color:rgba(224,134,47,.32);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  color:#fff;
  padding:92px 0 96px;
  background-image:linear-gradient(104deg,rgba(11,58,54,.94) 0%,rgba(18,80,75,.88) 46%,rgba(18,80,75,.58) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.hero-copy{max-width:640px;flex:1 1 480px;}
.hero-copy .eyebrow{background:rgba(255,255,255,.14);color:#F3E6D4;border-color:rgba(255,255,255,.26);}
.hero-copy h1{color:#fff;margin-bottom:14px;}
.hero-sub{font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:520px;margin-bottom:28px;}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;}
.hero-figure{flex:0 1 300px;display:none;}
.hero-figure img{border-radius:var(--r-img);width:100%;height:220px;object-fit:cover;border:1px solid rgba(255,255,255,.22);}
.data-strip{
  margin-top:36px;display:flex;flex-wrap:wrap;gap:0;
  border:1px solid rgba(255,255,255,.28);border-radius:var(--r-card);
  background:rgba(11,58,54,.42);backdrop-filter:none;max-width:640px;overflow:hidden;
}
.data-strip div{flex:1 1 180px;padding:16px 20px;border-right:1px solid rgba(255,255,255,.16);}
.data-strip div:last-child{border-right:0;}
.data-strip strong{display:block;font-size:24px;color:var(--accent);font-weight:700;line-height:1.3;}
.data-strip span{font-size:13px;color:rgba(255,255,255,.78);}
.cloud-divider{height:44px;background:var(--bg);border-radius:50% 50% 0 0/100% 100% 0 0;margin-bottom:-1px;position:relative;z-index:2;}

/* ---------- Pain points ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.pain-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.pain-num{
  font-size:30px;font-weight:700;color:var(--brand);line-height:1;
  -webkit-text-stroke:1px rgba(18,80,75,.35);
  margin-bottom:16px;display:block;
}
.pain-card h3{font-size:17px;line-height:1.55;margin-bottom:8px;}
.pain-card p{font-size:14px;color:var(--ink-2);line-height:1.7;margin:0;}

/* ---------- Plan cards ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.plan-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.plan-card.featured{border-top:3px solid var(--accent);}
.plan-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.plan-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out;}
.plan-card:hover .plan-media img{transform:scale(1.03);}
.plan-media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--brand);border-color:transparent;}
.plan-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.plan-body h3{margin-bottom:10px;}
.plan-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-bottom:18px;flex:1 1 auto;}
.plan-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;align-self:flex-start;}
.plan-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.plan-link i{transition:transform .2s ease-out;}
.plan-link:hover i{transform:translateX(3px);}

/* ---------- Flow ---------- */
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:flow;}
.flow-item{position:relative;padding-top:18px;border-top:1px solid var(--line);}
.flow-item::before{
  counter-increment:flow;content:"0" counter(flow);
  position:absolute;top:-15px;left:0;background:var(--bg);
  padding-right:12px;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;
}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;}

/* ---------- Stats ---------- */
.stat-band{background:var(--deep);color:#fff;padding:72px 0;}
.stat-band .section-head h2{color:#fff;}
.stat-band .section-head p{color:rgba(255,255,255,.72);}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:36px;}
.stat-item strong{display:block;font-size:44px;line-height:1.2;font-weight:700;color:var(--accent);}
.stat-item span{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-top:4px;}
.stat-quote{
  border-left:3px solid var(--accent);background:rgba(255,255,255,.06);
  padding:18px 22px;border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:15px;color:rgba(255,255,255,.86);max-width:720px;margin:0;
}

/* ---------- News list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.news-item{
  display:flex;gap:18px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-thumb{flex:0 0 200px;width:200px;height:130px;border-radius:10px;overflow:hidden;background:var(--bg-alt);}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{flex:1 1 auto;display:flex;flex-direction:column;min-width:0;}
.news-body .badge{align-self:flex-start;margin-bottom:8px;}
.news-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:inherit;}
.news-title a:hover{color:var(--brand);}
.news-excerpt{font-size:14px;color:var(--ink-2);line-height:1.7;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;}
.news-time{font-size:13px;color:var(--ink-2);}
.news-read{font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px;}
.news-read:hover{color:var(--accent);}
.news-read i{transition:transform .2s ease-out;}
.news-read:hover i{transform:translateX(3px);}
.empty-state{
  border:1.5px dashed var(--line);border-radius:var(--r-card);
  background:var(--surface);padding:56px 24px;text-align:center;
}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;}
.faq-list .accordion{border:0;background:transparent;}
.faq-list .accordion-item{
  border:1px solid var(--line);border-radius:12px;background:var(--surface);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-list .accordion-title{
  border:0;padding:16px 56px 16px 22px;font-size:16.5px;font-weight:600;color:var(--ink);
  line-height:1.55;background:transparent;position:relative;min-height:56px;display:flex;align-items:center;
}
.faq-list .accordion-title:hover{background:rgba(246,227,203,.35);color:var(--brand-d);}
.faq-list .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--accent);font-size:14px;transition:transform .2s ease-out;
}
.faq-list .accordion-item.is-active .accordion-title::before{content:"\f068";transform:translateY(-50%) rotate(180deg);}
.faq-list .accordion-content{border:0;padding:0 22px 22px;color:var(--ink-2);line-height:1.85;font-size:15px;background:transparent;}
.faq-list .accordion-content p{margin-bottom:10px;}
.faq-list .accordion-content p:last-child{margin-bottom:0;}

/* ---------- Privacy + CTA ---------- */
.privacy-block{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;}
.privacy-text{flex:1 1 520px;}
.privacy-text h3{margin-bottom:12px;}
.privacy-text p{font-size:15px;color:var(--ink-2);margin-bottom:8px;}
.privacy-text p:last-child{margin-bottom:0;}
.privacy-link{font-size:14px;font-weight:600;color:var(--brand);border-bottom:2px solid transparent;}
.privacy-link:hover{color:var(--accent);border-bottom-color:var(--accent);}

.cta-band{
  background:linear-gradient(100deg,rgba(18,80,75,.96),rgba(11,58,54,.96));
  color:#fff;border-radius:var(--r-card);padding:48px;display:flex;
  align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:560px;margin:0;}
.cta-band .cta-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- Modal ---------- */
.reveal-overlay{background:rgba(11,58,54,.62);}
.contact-modal{border:0;border-radius:var(--r-card);padding:0;max-width:540px;width:calc(100% - 32px);}
.contact-modal .modal-inner{padding:32px;}
.contact-modal h3{margin-bottom:8px;}
.contact-modal .modal-sub{font-size:14px;color:var(--ink-2);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  width:100%;height:46px;padding:10px 14px;border:1px solid var(--line);
  border-radius:var(--r-input);background:var(--bg);color:var(--ink);outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 2px var(--accent);}
.field.error input,.field.error textarea{border-color:var(--warn);}
.field .err-msg{display:none;font-size:13px;color:var(--warn);margin-top:6px;}
.field.error .err-msg{display:block;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2);margin:6px 0 20px;line-height:1.65;}
.consent input{margin-top:5px;flex:0 0 auto;}
.modal-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink-2);cursor:pointer;font-size:15px;}
.modal-close:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- Sticky mobile bar ---------- */
.sticky-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--brand);color:#fff;height:56px;align-items:center;
  justify-content:space-between;padding:0 18px;box-shadow:0 -6px 20px -12px rgba(11,58,54,.6);
  opacity:0;pointer-events:none;transition:opacity .22s ease-out;
}
.sticky-bar.is-visible{opacity:1;pointer-events:auto;}
.sticky-bar span{font-size:14px;}
.sticky-bar button{background:#fff;color:var(--brand-d);border:0;border-radius:var(--r-btn);padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:#CFDED9;padding:64px 0 0;font-size:14px;line-height:1.9;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:44px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px;}
.footer-brand .logo-mark{color:#fff;}
.footer-col p{color:rgba(207,222,217,.82);margin-bottom:10px;}
.footer-col ul{display:flex;flex-direction:column;gap:8px;}
.footer-col a{color:rgba(207,222,217,.86);border-bottom:1px solid transparent;}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-copy{border-top:1px solid rgba(207,222,217,.18);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(207,222,217,.62);font-size:13px;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  .hero-copy{max-width:100%;}
}
@media screen and (max-width:991px){
  :root{--sp-xl:64px;}
  .header-search{max-width:240px;}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .flow-list{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
  :root{--sp-xl:44px;--fs-body:16px;}
  body{padding-bottom:0;}
  .container{padding:0 16px;}
  .brand-bar{height:60px;gap:12px;}
  .logo-text{font-size:16px;}
  .header-search{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-nav{height:44px;gap:8px;}
  .channel-nav a{font-size:14px;padding:6px 14px;}
  .hero{padding:64px 0 72px;}
  .hero-sub{font-size:16px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1 1 100%;}
  .data-strip{max-width:100%;}
  .data-strip div{flex:1 1 100%;border-right:0;border-bottom:1px solid rgba(255,255,255,.16);}
  .data-strip div:last-child{border-bottom:0;}
  .pain-grid,.plan-grid,.flow-list{grid-template-columns:1fr;gap:16px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .stat-item strong{font-size:34px;}
  .news-item{flex-direction:column;gap:14px;}
  .news-thumb{flex:0 0 auto;width:100%;height:180px;}
  .cta-band{padding:32px 24px;border-radius:var(--r-card);}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1 1 100%;}
  .privacy-block{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .sticky-bar{display:flex;}
  .contact-modal .modal-inner{padding:24px;}
  body.has-sticky{padding-bottom:56px;}
}
@media screen and (max-width:520px){
  .stat-grid{grid-template-columns:1fr 1fr;}
  .hero-cta .btn{font-size:14px;padding:12px 18px;}
  .brand-bar .logo-text{font-size:15px;white-space:normal;line-height:1.25;}
}

/* roulang page: article */
:root{
  --ink:#1B1F1E;
  --ink-2:#5A625F;
  --brand:#12504B;
  --brand-d:#0B3A36;
  --brand-l:#1E6A63;
  --accent:#E0862F;
  --accent-l:#F6E3CB;
  --bg:#F7F6F2;
  --bg-alt:#EDF2F0;
  --surface:#FFFFFF;
  --line:#DCDCD4;
  --ok:#2F8F6B;
  --warn:#C6553A;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(18,80,75,.06), 0 8px 24px -12px rgba(18,80,75,.18);
  --sh-2:0 2px 4px rgba(18,80,75,.08), 0 18px 36px -14px rgba(18,80,75,.28);
  --sp-xs:8px;
  --sp-s:16px;
  --sp-m:24px;
  --sp-l:40px;
  --sp-xl:64px;
  --fs-h1:clamp(30px,3.6vw,46px);
  --fs-h2:clamp(24px,2.6vw,32px);
  --fs-h3:21px;
  --fs-body:17px;
  --fs-small:14px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:var(--fs-body);
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:0;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:inherit;
  font-weight:700;
  line-height:1.35;
  letter-spacing:0;
  color:var(--ink);
}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out}
a:hover{color:var(--accent)}
button{font-family:inherit;font-size:inherit}
input,textarea,select{font-family:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--accent-l);color:var(--brand-d)}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  transition:box-shadow .22s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.brand-bar{border-bottom:1px solid var(--line);background:var(--surface)}
.brand-row{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand);font-size:19px;font-weight:700;white-space:nowrap}
.brand:hover{color:var(--brand-d)}
.logo-mark{color:var(--brand-l);flex:0 0 auto}
.brand-name{letter-spacing:.2px}

.search-group{
  display:flex;
  align-items:center;
  margin-left:auto;
  width:100%;
  max-width:320px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:var(--bg);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-group:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(224,134,47,.28)}
.search-group input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  padding:0 14px;
  font-size:15px;
  color:var(--ink);
  outline:none;
}
.search-group input::placeholder{color:#9AA29F}
.search-btn{
  flex:0 0 auto;
  height:100%;
  padding:0 16px;
  border:0;
  background:transparent;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
}
.search-btn:hover{color:var(--accent)}

.brand-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--surface);
  color:var(--brand);
  font-size:18px;
  line-height:1;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand)}

.mobile-menu{
  display:flex;
  flex-direction:column;
  padding:10px 24px 18px;
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.mobile-menu a{
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:16px;
  color:var(--ink);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a:hover{color:var(--brand)}

.channel-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.channel-nav{
  display:flex;
  align-items:center;
  gap:12px;
  height:52px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:8px 20px;
  border:1px solid var(--brand);
  border-radius:999px;
  font-size:15px;
  line-height:1.4;
  color:var(--brand);
  white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.channel-nav a:hover{background:rgba(246,227,203,.65);color:var(--brand-d)}
.channel-nav a.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border:1.5px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  cursor:pointer;
  transition:transform .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.btn i{transition:transform .2s ease-out}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:hover i{transform:translateX(2px)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:rgba(246,227,203,.55);color:var(--brand-d)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 0;
  color:var(--brand);
  font-weight:600;
  border-bottom:2px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out;
}
.btn-text:hover{color:var(--accent);border-bottom-color:var(--accent)}
.btn-text:hover i{transform:translateX(2px)}

.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1.6;
  background:var(--accent-l);
  color:#8A4C10;
}

/* ============ 面包屑 ============ */
.crumb-band{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.crumb-wrap{padding:16px 0}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.crumb-list li{display:flex;align-items:center;gap:8px}
.crumb-list li+li::before{content:"/";color:#A9B0AC}
.crumb-list a{color:var(--ink-2);border-bottom:1px solid transparent}
.crumb-list a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.crumb-list li.current{color:var(--brand);font-weight:600}

/* ============ 正文布局 ============ */
.main-area{padding:48px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.post{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:40px 44px 44px;
  min-width:0;
}
.post-title{
  font-size:var(--fs-h1);
  line-height:1.28;
  font-weight:700;
  margin-bottom:18px;
  overflow-wrap:break-word;
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:var(--fs-small);
  color:var(--ink-2);
}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#B6BDB9}
.post-divider{height:1px;background:var(--line);margin:22px 0 32px}

.post-body{
  max-width:780px;
  font-size:var(--fs-body);
  line-height:1.85;
  color:var(--ink);
  overflow-wrap:break-word;
  word-break:break-word;
}
.post-body h2{font-size:28px;margin:40px 0 16px}
.post-body h3{font-size:22px;margin:32px 0 14px}
.post-body h4{font-size:18px;margin:26px 0 12px}
.post-body p{margin:0 0 1.1em}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:1.4em}
.post-body ul{list-style:disc}
.post-body ol{list-style:decimal}
.post-body li{margin:6px 0}
.post-body li::marker{color:var(--brand)}
.post-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--accent);
  background:var(--accent-l);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--ink);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:var(--r-img);margin:24px auto;width:auto}
.post-body figure{margin:24px 0}
.post-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px}
.post-body a{color:var(--brand);border-bottom:1px solid var(--brand)}
.post-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.post-body h2 a,.post-body h3 a,.post-body h4 a{border-bottom:0}
.post-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:var(--bg-alt);
  padding:2px 6px;
  border-radius:6px;
}
.post-body pre{
  background:#0E3B37;
  color:#E7F1EE;
  padding:18px 20px;
  border-radius:10px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.post-body pre code{background:transparent;color:inherit;padding:0;font-size:14px}
.post-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.post-body thead th{background:var(--bg-alt);font-weight:600}
.post-body tbody tr:nth-child(even){background:rgba(237,242,240,.55)}

.empty-state{
  border:1.5px dashed var(--line);
  border-radius:var(--r-card);
  padding:52px 24px;
  text-align:center;
  color:var(--ink-2);
}
.empty-state strong{display:block;font-size:18px;color:var(--ink);margin-bottom:8px}
.empty-state p{margin:0 0 20px}

.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.post-tags span.lbl{font-size:14px;color:var(--ink-2)}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;
  color:var(--ink-2);
  background:var(--bg);
}
.tag:hover{border-color:var(--brand);color:var(--brand)}

.back-row{margin-top:28px}

/* ============ 侧栏 ============ */
.sidebar{min-width:0}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px;
  margin-bottom:20px;
}
.side-card h3{font-size:17px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-list li a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--ink-2);
}
.side-list li:last-child a{border-bottom:0;padding-bottom:0}
.side-list li a:hover{color:var(--brand)}
.side-list li a i{font-size:12px;color:#A9B0AC;transition:transform .2s ease-out}
.side-list li a:hover i{transform:translateX(2px);color:var(--accent)}
.side-cta{
  background:var(--brand-d);
  border-color:var(--brand-d);
  color:#CFDED9;
}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.18)}
.side-cta p{font-size:14px;line-height:1.8;margin-bottom:18px;color:#CFDED9}
.side-cta .btn-primary{background:var(--accent);color:#2A1606}
.side-cta .btn-primary:hover{background:#F09A45;color:#2A1606}

/* ============ 相关推荐 ============ */
.related-section{margin-top:56px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.related-head h2{font-size:var(--fs-h2)}
.related-row{margin-left:-12px;margin-right:-12px}
.related-row .column{padding:0 12px;margin-bottom:20px}
.rec-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.rec-thumb{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--bg-alt)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease-out}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-thumb .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.92);color:var(--brand)}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:17px;line-height:1.55}
.rec-body p{font-size:14px;color:var(--ink-2);margin:0;line-height:1.75}

/* ============ 页脚 ============ */
.site-footer{background:#0E3B37;color:#CFDED9;padding:56px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand .logo-mark{color:#7FBFB6}
.footer-col p{font-size:14px;line-height:1.9;color:#A9C3BD;margin:0}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul li{font-size:14px;line-height:1.9;color:#A9C3BD;margin-bottom:6px}
.footer-col ul li a{color:#CFDED9;border-bottom:1px solid transparent}
.footer-col ul li a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-copy{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:14px;
  color:#8FAFA9;
}

/* ============ 表单弹层 ============ */
.reveal{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  padding:0;
  box-shadow:var(--sh-2);
  background:var(--surface);
}
.modal-head{
  padding:24px 28px 16px;
  border-bottom:1px solid var(--line);
}
.modal-head h3{font-size:20px;margin-bottom:6px}
.modal-head p{font-size:14px;color:var(--ink-2);margin:0}
.modal-body{padding:22px 28px 8px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field input[type=text],
.field input[type=tel],
.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:var(--bg);
  font-size:15px;
  color:var(--ink);
  outline:none;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 1px var(--brand)}
.field .err{display:block;font-size:13px;color:var(--warn);margin-top:6px}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.check-row input{margin-top:6px;accent-color:var(--brand)}
.privacy-hint{font-size:13px;color:var(--ink-2);line-height:1.75;margin:12px 0 0}
.modal-foot{padding:18px 28px 26px;display:flex;flex-direction:column;gap:12px}
.reveal .close-button{color:var(--ink-2);top:16px;right:18px;font-size:22px}
.reveal .close-button:hover{color:var(--accent)}

.sticky-cta{
  display:none;
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  height:56px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  opacity:0;
  transform:translateY(100%);
  transition:opacity .22s ease-out,transform .22s ease-out;
}
.sticky-cta.show{opacity:1;transform:translateY(0)}
.sticky-cta button{
  border:0;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#2A1606;
  font-weight:700;
  padding:9px 16px;
  font-size:14px;
  cursor:pointer;
}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 280px}
  .post{padding:34px 32px 38px}
}
@media(max-width:991px){
  .article-layout{grid-template-columns:1fr}
  .sidebar{order:2}
  .post-body{max-width:100%}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .search-group{display:none}
}
@media(max-width:767px){
  .container{padding:0 16px}
  .brand-row{min-height:60px;gap:12px}
  .brand{font-size:17px}
  .brand-actions .btn{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channel-bar{display:none}
  .main-area{padding:28px 0 56px}
  .post{padding:24px 18px 28px;border-radius:var(--r-card);box-shadow:none}
  .post-title{font-size:26px;margin-bottom:14px}
  .post-divider{margin:18px 0 24px}
  .post-body h2{font-size:23px;margin:32px 0 14px}
  .post-body h3{font-size:19px;margin:26px 0 12px}
  .related-head{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-copy{flex-direction:column;align-items:flex-start}
  .sticky-cta{display:flex}
  .modal-head,.modal-body,.modal-foot{padding-left:20px;padding-right:20px}
}
@media(max-width:520px){
  .post-meta{gap:10px}
  .related-row{margin-left:0;margin-right:0}
  .related-row .column{padding:0}
}

/* roulang page: category1 */
:root{
  --ink:#1B1F1E;
  --ink-2:#5A625F;
  --brand:#12504B;
  --brand-d:#0B3A36;
  --brand-l:#1E6A63;
  --accent:#E0862F;
  --accent-l:#F6E3CB;
  --bg:#F7F6F2;
  --bg-alt:#EDF2F0;
  --surface:#FFFFFF;
  --line:#DCDCD4;
  --ok:#2F8F6B;
  --warn:#C6553A;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(18,80,75,.06), 0 8px 24px -12px rgba(18,80,75,.18);
  --sh-2:0 2px 4px rgba(18,80,75,.08), 0 18px 40px -18px rgba(18,80,75,.28);
  --sp-xs:8px;
  --sp-s:16px;
  --sp-m:24px;
  --sp-l:40px;
  --sp-xl:88px;
  --fs-h1:clamp(28px,3.4vw,44px);
  --fs-h2:clamp(23px,2.3vw,32px);
  --fs-h3:20px;
  --fs-body:17px;
  --fs-small:14px;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:var(--fs-body);
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out}
a:hover{color:var(--accent)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:0}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.row{margin-left:-12px;margin-right:-12px;max-width:1200px}
.row .columns{padding-left:12px;padding-right:12px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-condensed{box-shadow:var(--sh-1)}

.brand-row{background:var(--surface)}
.brand-row__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:68px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--brand);
  font-size:19px;
  font-weight:700;
  line-height:1.3;
}
.brand:hover{color:var(--brand-d)}
.logo-mark{color:var(--brand);flex:0 0 auto}

.brand-search{
  position:relative;
  display:flex;
  flex:1 1 auto;
  max-width:380px;
  margin:0 auto;
}
.brand-search input{
  width:100%;
  height:40px;
  padding:0 96px 0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:var(--bg);
  color:var(--ink);
  font-family:inherit;
  font-size:14px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.brand-search input::placeholder{color:#8C948F}
.brand-search input:focus{
  outline:none;
  background:var(--surface);
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(224,134,47,.5);
}
.brand-search button{
  position:absolute;
  right:4px;
  top:4px;
  height:32px;
  padding:0 14px;
  border:none;
  border-radius:6px;
  background:var(--brand);
  color:#fff;
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease-out;
}
.brand-search button:hover{background:var(--brand-d)}

.brand-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
}

.menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 16px;
  border:1.5px solid var(--brand);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.menu-toggle:hover{background:rgba(246,227,203,.5);color:var(--brand-d)}

.channel-bar{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  position:relative;
  z-index:61;
}
.channel-nav{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
  scroll-snap-type:x proximity;
}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:7px 18px;
  border:1px solid var(--brand);
  border-radius:999px;
  color:var(--brand);
  font-size:15px;
  line-height:1.4;
  white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.channel-nav a:hover{background:rgba(246,227,203,.4);color:var(--brand-d)}
.channel-nav a.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.channel-nav a.active:hover{background:var(--brand-d);color:#fff}

.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-menu.is-open{display:block}
.mobile-menu .container{padding-top:10px;padding-bottom:14px}
.mobile-menu a{
  display:block;
  padding:11px 4px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  font-size:15px;
}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.is-current{color:var(--brand);font-weight:700}
.mobile-menu__cta{color:var(--brand) !important;font-weight:700}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1.5px solid transparent;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  line-height:1.4;
  text-align:center;
  cursor:pointer;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn--primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff;transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(246,227,203,.5);color:var(--brand-d)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
}
.text-link::after{content:"→";transition:transform .18s ease-out}
.text-link:hover{color:var(--brand-d)}
.text-link:hover::after{transform:translateX(2px)}

/* ---------- 首屏 ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:40px 0 0;
}
.cat-hero__deco{
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(18,80,75,.18) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.55;
  -webkit-mask-image:linear-gradient(105deg,#000 0%,rgba(0,0,0,.2) 55%,transparent 78%);
  mask-image:linear-gradient(105deg,#000 0%,rgba(0,0,0,.2) 55%,transparent 78%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1}
.cat-hero__inner{max-width:760px;padding-bottom:44px}

.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs__sep{color:#B6BDB8}
.crumbs__current{color:var(--brand);font-weight:600}

.eyebrow{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  margin-bottom:14px;
  border-radius:999px;
  background:var(--accent-l);
  border:1px solid rgba(224,134,47,.35);
  color:#8A4B12;
  font-size:12px;
  font-weight:600;
  letter-spacing:.4px;
}

.cat-hero h1{
  font-size:var(--fs-h1);
  line-height:1.25;
  font-weight:700;
  margin-bottom:12px;
}
.cat-hero__lead{
  font-size:17px;
  color:var(--ink-2);
  margin:0 0 24px;
  max-width:620px;
}
.cat-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}

.wave-sep{display:block;width:100%;height:56px;margin-bottom:-1px}
.wave-sep svg{display:block;width:100%;height:56px}

/* ---------- 板块 ---------- */
.section{padding:var(--sp-xl) 0}
.section--tight{padding:calc(var(--sp-xl) * .6) 0}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:var(--fs-h2);
  line-height:1.35;
  margin-bottom:12px;
}
.section-head p{color:var(--ink-2);margin:0}
.section-head--split{
  max-width:none;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.section-head--split > div{max-width:720px}

/* ---------- 方案卡片 ---------- */
.plan-grid{margin-bottom:-24px}
.plan-grid > .columns{margin-bottom:24px}

.plan-card{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.plan-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:#C9D4D1;
}
.plan-card--accent{border-top:3px solid var(--accent)}

.plan-card__media{
  position:relative;
  aspect-ratio:4 / 3;
  background:var(--bg-alt);
  overflow:hidden;
}
.plan-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .24s ease-out;
}
.plan-card:hover .plan-card__media img{transform:scale(1.03)}

.badge{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  line-height:1.5;
}
.plan-card__badge{position:absolute;top:12px;left:12px;box-shadow:var(--sh-1)}

.plan-card__body{
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
  padding:20px 22px 24px;
}
.plan-card__body h3{
  font-size:var(--fs-h3);
  font-weight:600;
  line-height:1.5;
}
.plan-card__body p{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.8;
  margin:0;
}
.plan-card__list{
  display:grid;
  gap:6px;
  margin:2px 0 0;
  padding-top:12px;
  border-top:1px dashed var(--line);
}
.plan-card__list li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.75;
}
.plan-card__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.plan-card__foot{margin-top:auto;padding-top:14px}

/* ---------- 流程步骤 ---------- */
.step-grid{margin-bottom:-24px}
.step-grid > .columns{margin-bottom:24px}

.step-card{
  height:100%;
  padding:26px 24px 28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-card__num{
  display:block;
  font-size:38px;
  font-weight:700;
  line-height:1;
  color:var(--brand);
  margin-bottom:14px;
  letter-spacing:-1px;
}
.step-card h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:8px;
}
.step-card p{color:var(--ink-2);font-size:15px;margin:0}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat{
  background:var(--surface);
  padding:28px 24px;
  text-align:center;
}
.stat__num{
  display:block;
  font-size:clamp(26px,3vw,38px);
  font-weight:700;
  line-height:1.2;
  color:var(--accent);
  margin-bottom:6px;
}
.stat__label{font-size:14px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.accordion{
  margin:0;
  border:none;
  background:transparent;
}
.accordion::before,.accordion::after{display:none;content:none}
.accordion-item{
  margin-bottom:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.accordion-item.is-active{
  border-color:#C9D4D1;
  box-shadow:var(--sh-1);
}
.accordion-title{
  position:relative;
  display:flex;
  align-items:center;
  min-height:56px;
  padding:14px 62px 14px 22px;
  border:none;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  background:transparent;
  transition:background-color .18s ease-out,color .18s ease-out;
}
.accordion-title:hover,.accordion-title:focus{
  background:var(--accent-l);
  color:var(--ink);
  outline:none;
}
.accordion-title::before{
  content:"";
  position:absolute;
  right:22px;
  top:50%;
  width:14px;
  height:2px;
  margin:0;
  background:var(--brand);
  transform:translateY(-50%);
  transition:background-color .18s ease-out;
}
.accordion-title::after{
  content:"";
  position:absolute;
  right:28px;
  top:50%;
  width:2px;
  height:14px;
  margin:0;
  background:var(--brand);
  transform:translateY(-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(90deg);opacity:0}
.accordion-content{
  padding:0 22px 22px;
  border:none;
  background:transparent;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.85;
}
.accordion-content p{margin:0}

/* ---------- CTA ---------- */
.cta-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  padding:36px 36px;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.cta-panel__text{max-width:620px}
.cta-panel__text h2{
  font-size:clamp(21px,2vw,27px);
  line-height:1.4;
  margin-bottom:10px;
}
.cta-panel__text p{color:var(--ink-2);font-size:15px;margin:0}
.cta-panel__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0E3B37;
  color:#CFDED9;
  padding:64px 0 24px;
  font-size:14px;
  line-height:1.9;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin:0 0 12px;
}
.footer-col ul{display:grid;gap:6px}
.footer-col p{margin:0;color:#A9C4BE}
.footer-brand{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
}
.footer-brand .logo-mark{color:#CFDED9}
.footer-col a{color:#CFDED9}
.footer-col a:hover{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
}
.footer-copy{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-top:40px;
  padding-top:18px;
  border-top:1px solid rgba(207,222,217,.2);
  color:#9FBDB6;
  font-size:13px;
}

/* ---------- 弹层与表单 ---------- */
.reveal-overlay{background:rgba(11,58,54,.62)}
.reveal{
  width:100%;
  max-width:540px;
  padding:30px 28px 26px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  box-shadow:var(--sh-2);
}
.reveal h3{
  font-size:21px;
  font-weight:700;
  margin-bottom:8px;
}
.reveal .modal-lead{
  color:var(--ink-2);
  font-size:14px;
  margin-bottom:20px;
}
.close-button{
  top:14px;
  right:16px;
  color:var(--ink-2);
  font-size:26px;
  line-height:1;
}
.close-button:hover{color:var(--accent)}

.field{margin-bottom:16px}
.field label{
  display:block;
  margin-bottom:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.field input[type="text"],
.field input[type="tel"],
.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:var(--surface);
  color:var(--ink);
  font-family:inherit;
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{
  height:auto;
  min-height:104px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(224,134,47,.55);
}
.checkbox-row{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin:4px 0 18px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-2);
}
.checkbox-row input{
  width:16px;
  height:16px;
  margin:4px 0 0;
  accent-color:var(--brand);
  flex:0 0 auto;
}
.checkbox-row a{text-decoration:underline;text-underline-offset:3px}
.form-msg{
  display:none;
  margin-top:10px;
  font-size:13px;
  line-height:1.7;
}
.form-msg.is-visible{display:block}
.form-msg--error{color:var(--warn)}
.form-msg--ok{color:var(--ok)}
.privacy-note{
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--ink-2);
  line-height:1.7;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sp-xl:72px}
}

@media (max-width:991px){
  :root{--sp-xl:64px}
  .brand-search{display:none}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .cat-hero__inner{padding-bottom:36px}
  .cta-panel{padding:30px 26px}
}

@media (max-width:767px){
  :root{
    --sp-xl:44px;
    --fs-body:16px;
    --fs-h1:clamp(25px,7vw,32px);
    --fs-h3:18px;
  }
  .container{padding:0 18px}
  .row{margin-left:-8px;margin-right:-8px}
  .row .columns{padding-left:8px;padding-right:8px}
  .brand-row__inner{min-height:60px;gap:12px}
  .brand{font-size:16px}
  .brand-actions .btn{display:none}
  .menu-toggle{display:inline-flex}
  .channel-nav{gap:8px;padding:7px 0}
  .channel-nav a{padding:6px 14px;font-size:14px}
  .cat-hero{padding-top:28px}
  .cat-hero__lead{font-size:15px}
  .cat-hero__actions{gap:12px}
  .cat-hero__actions .btn{width:100%}
  .wave-sep,.wave-sep svg{height:38px}
  .section-head{margin-bottom:26px}
  .plan-grid > .columns{margin-bottom:16px}
  .step-grid > .columns{margin-bottom:16px}
  .step-card{padding:22px 20px 24px}
  .step-card__num{font-size:32px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat{padding:22px 16px}
  .stat:last-child{grid-column:span 2}
  .cta-panel{padding:24px 20px;border-left-width:4px}
  .cta-panel__actions{width:100%}
  .cta-panel__actions .btn{width:100%}
  .site-footer{padding:44px 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-copy{flex-direction:column;align-items:flex-start;margin-top:28px}
  .reveal{padding:24px 20px 22px}
  .accordion-title{font-size:16px;padding:14px 54px 14px 18px}
  .accordion-content{padding:0 18px 20px}
}

@media (max-width:520px){
  .btn{padding:11px 18px;font-size:15px}
  .plan-card__body{padding:18px 18px 20px}
}

/* roulang page: category2 */
:root{
  --ink:#1B1F1E;
  --ink-2:#5A625F;
  --brand:#12504B;
  --brand-d:#0B3A36;
  --brand-l:#1E6A63;
  --accent:#E0862F;
  --accent-l:#F6E3CB;
  --accent-d:#8A4E15;
  --bg:#F7F6F2;
  --bg-alt:#EDF2F0;
  --surface:#FFFFFF;
  --line:#DCDCD4;
  --dark:#0E3B37;
  --ok:#2F8F6B;
  --err:#C6553A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:8px;
  --r-input:8px;
  --sh-1:0 1px 2px rgba(18,80,75,.06), 0 8px 24px -12px rgba(18,80,75,.18);
  --sh-2:0 2px 4px rgba(18,80,75,.08), 0 16px 34px -14px rgba(18,80,75,.26);
  --sp-xs:8px;
  --sp-s:16px;
  --sp-m:24px;
  --sp-l:48px;
  --sp-xl:88px;
  --fs-h1:clamp(30px,3.6vw,46px);
  --fs-h2:clamp(24px,2.4vw,32px);
  --fs-h3:clamp(19px,1.5vw,22px);
  --fs-body:16.5px;
  --fs-small:14px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:var(--fs-body);
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-l);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:3px solid rgba(224,134,47,.85);
  outline-offset:2px;
}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.row{margin-left:-12px;margin-right:-12px;max-width:calc(100% + 24px);}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  padding:13px 24px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  background:transparent;
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn .arrow{transition:transform .2s ease-out;display:inline-block;}
.btn:hover .arrow{transform:translateX(2px);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);}
.btn-ghost{border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--accent-l);color:var(--brand-d);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:var(--accent-l);color:var(--brand-d);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{background:#C9CECB;color:#F3F4F2;box-shadow:none;cursor:not-allowed;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.brand-bar{
  background:var(--surface);
  max-height:76px;
  overflow:hidden;
  transition:max-height .24s ease-out,opacity .24s ease-out,padding .24s ease-out;
}
.site-header.is-condensed .brand-bar{max-height:0;opacity:0;}
.site-header.is-condensed{box-shadow:var(--sh-1);}
.brand-inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:71px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-d);flex:0 0 auto;}
.brand:hover{color:var(--brand);}
.brand .logo-mark{color:var(--brand);}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.2px;white-space:nowrap;}
.nav-search{
  display:flex;
  align-items:center;
  flex:1 1 auto;
  max-width:420px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:var(--bg);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.nav-search:focus-within{
  border-color:var(--brand);
  background:#fff;
  box-shadow:0 0 0 2px rgba(224,134,47,.6);
}
.nav-search input{
  flex:1 1 auto;
  height:44px;
  border:0;
  background:transparent;
  padding:0 14px;
  font-size:15px;
  color:var(--ink);
}
.nav-search input::placeholder{color:#8B928E;}
.nav-search button{
  border:0;
  background:var(--brand);
  color:#fff;
  font-size:14px;
  font-weight:600;
  height:44px;
  padding:0 18px;
  cursor:pointer;
  transition:background-color .2s ease-out;
}
.nav-search button:hover{background:var(--brand-d);}
.brand-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;background:var(--brand);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-bar{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.channel-nav{
  display:flex;
  align-items:center;
  gap:10px;
  height:52px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  flex:0 0 auto;
  scroll-snap-align:start;
  font-size:15px;
  padding:8px 20px;
  border-radius:999px;
  border:1px solid var(--brand);
  color:var(--brand);
  white-space:nowrap;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.channel-nav a:hover{background:rgba(246,227,203,.45);color:var(--brand-d);}
.channel-nav a.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

.mobile-menu{
  display:none;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:8px 0 16px;
}
.mobile-menu.is-open{display:block;}
.mobile-menu a{
  display:block;
  padding:13px 4px;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.mobile-menu a.active{color:var(--brand);font-weight:700;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  color:#fff;
  padding:44px 0 52px;
  background:
    linear-gradient(115deg,rgba(11,58,54,.94) 0%,rgba(18,80,75,.88) 55%,rgba(18,80,75,.72) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-40px;
  width:320px;
  height:320px;
  background-image:radial-gradient(rgba(246,227,203,.32) 1.4px,transparent 1.4px);
  background-size:18px 18px;
  opacity:.5;
  pointer-events:none;
}
.breadcrumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.78);
  margin-bottom:16px;
}
.breadcrumbs a{color:rgba(255,255,255,.82);border-bottom:1px solid transparent;}
.breadcrumbs a:hover{color:#fff;border-bottom-color:var(--accent);}
.breadcrumbs .sep{color:rgba(255,255,255,.5);}
.breadcrumbs .current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:var(--fs-h1);
  line-height:1.25;
  font-weight:700;
  max-width:840px;
  margin-bottom:14px;
}
.hero-sub{
  font-size:17px;
  line-height:1.75;
  color:rgba(255,255,255,.86);
  max-width:640px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  font-size:12.5px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(246,227,203,.16);
  border:1px solid rgba(246,227,203,.45);
  color:#F6E3CB;
}

/* ---------- sections ---------- */
.section{padding:var(--sp-xl) 0;}
.section-alt{background:var(--bg-alt);}
.section-head{margin-bottom:38px;max-width:760px;}
.section-head h2{
  font-size:var(--fs-h2);
  line-height:1.35;
  font-weight:700;
  color:var(--brand-d);
  margin-bottom:12px;
}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ---------- guide layout ---------- */
.guide-layout{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.guide-toc{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px 22px;
}
.toc-title{
  font-size:15px;
  font-weight:700;
  color:var(--brand-d);
  letter-spacing:.5px;
  margin-bottom:14px;
}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  position:relative;
  font-size:14.5px;
  line-height:1.6;
  color:var(--ink-2);
  padding:9px 10px 9px 14px;
  border-radius:6px;
  border-left:3px solid transparent;
  transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{color:var(--brand);background:var(--bg-alt);}
.toc-list a.is-current{
  color:var(--brand-d);
  font-weight:600;
  border-left-color:var(--accent);
  background:rgba(246,227,203,.4);
}
.toc-help{
  margin-top:20px;
  padding-top:18px;
  border-top:1px dashed var(--line);
  font-size:13.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.toc-help .btn{margin-top:12px;}

/* ---------- prose ---------- */
.prose{max-width:800px;}
.prose h2{
  font-size:var(--fs-h2);
  line-height:1.35;
  font-weight:700;
  color:var(--brand-d);
  padding-top:40px;
  scroll-margin-top:96px;
}
.prose h2:first-child{padding-top:0;}
.prose h3{
  font-size:var(--fs-h3);
  line-height:1.5;
  font-weight:600;
  color:var(--brand);
  padding-top:30px;
  margin-bottom:12px;
}
.prose p{margin-top:16px;color:var(--ink);}
.prose ul{margin-top:16px;}
.prose ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:9px;
  color:var(--ink);
}
.prose ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--brand);
  transform:rotate(45deg);
}
.prose ol{counter-reset:step;margin-top:16px;}
.prose ol li{
  position:relative;
  padding-left:34px;
  margin-bottom:10px;
  counter-increment:step;
}
.prose ol li::before{
  content:counter(step);
  position:absolute;
  left:0;top:.25em;
  width:22px;height:22px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  line-height:1;
}
.note-box{
  margin-top:26px;
  padding:20px 22px;
  border-left:3px solid var(--accent);
  background:var(--accent-l);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--brand-d);
  font-size:15.5px;
  line-height:1.8;
}
.figure-inline{margin:28px 0 0;}
.figure-inline img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.figure-inline figcaption{
  font-size:13px;
  color:var(--ink-2);
  margin-top:10px;
  text-align:center;
}

/* ---------- data bar ---------- */
.data-bar{
  margin-top:38px;
  background:var(--dark);
  border-radius:var(--r-card);
  padding:32px 28px;
  color:#CFDED9;
}
.data-bar .data-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.data-item .num{
  font-size:clamp(30px,3vw,44px);
  font-weight:700;
  line-height:1.15;
  color:var(--accent);
  letter-spacing:.5px;
}
.data-item .lab{
  font-size:14px;
  color:#CFDED9;
  margin-top:6px;
}
.data-quote{
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid rgba(207,222,217,.25);
  font-size:15px;
  color:#E4EDE9;
  line-height:1.8;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list.accordion{
  background:transparent;
  border:0;
  margin:0;
}
.faq-list .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:0 1px 2px rgba(18,80,75,.05);
}
.faq-list .accordion-item:last-child{margin-bottom:0;}
.faq-list .accordion-title{
  position:relative;
  display:block;
  padding:16px 60px 16px 22px;
  min-height:56px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  border:0;
  line-height:1.6;
  background:transparent;
  transition:background-color .2s ease-out,color .2s ease-out;
}
.faq-list .accordion-title:hover{background:var(--bg-alt);color:var(--brand-d);}
.faq-list .accordion-title::before{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  margin:0;
  width:26px;height:26px;
  font-size:19px;
  line-height:24px;
  text-align:center;
  color:var(--brand);
  border:1px solid var(--line);
  border-radius:50%;
  background:#fff;
  transition:transform .2s ease-out,color .2s ease-out,background-color .2s ease-out;
}
.faq-list .accordion-title[aria-expanded="true"]::before{
  content:"−";
  color:var(--accent-d);
  background:var(--accent-l);
  border-color:var(--accent);
  transform:translateY(-50%) rotate(180deg);
}
.faq-list .accordion-content{
  border:0;
  border-top:1px dashed var(--line);
  padding:18px 22px 22px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
  background:#FCFCFA;
}

/* ---------- cards ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C8CFC9;}
.card-media{position:relative;}
.card-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-img) var(--r-img) 0 0;
}
.badge{
  position:absolute;
  left:12px;
  top:12px;
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:999px;
  background:var(--accent-l);
  color:var(--accent-d);
  border:1px solid rgba(224,134,47,.5);
}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{
  font-size:19px;
  line-height:1.45;
  font-weight:600;
  color:var(--brand-d);
  margin-bottom:10px;
}
.card-body p{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.text-link{
  margin-top:auto;
  padding-top:18px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  border-bottom:1px solid transparent;
  align-self:flex-start;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.text-link .arrow{transition:transform .2s ease-out;}
.text-link:hover{color:var(--accent-d);border-bottom-color:var(--accent);}
.text-link:hover .arrow{transform:translateX(2px);}
.card-featured{border-top:3px solid var(--accent);}

/* ---------- cta ---------- */
.cta-block{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:44px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  box-shadow:var(--sh-1);
}
.cta-block h2{
  font-size:clamp(22px,2.1vw,28px);
  line-height:1.4;
  color:var(--brand-d);
  margin-bottom:10px;
}
.cta-block p{color:var(--ink-2);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--dark);
  color:#CFDED9;
  padding:64px 0 26px;
  font-size:14px;
  line-height:1.9;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(207,222,217,.2);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand .logo-mark{color:#9FC6BF;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-col p{color:#B7CBC5;}
.footer-col ul li{margin-bottom:8px;}
.footer-col a{color:#CFDED9;border-bottom:1px solid transparent;}
.footer-col a:hover{color:#fff;border-bottom-color:var(--accent);}
.footer-copy{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  color:#A9BDB7;
}

/* ---------- modal ---------- */
.reveal{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  padding:30px 30px 28px;
  background:#fff;
}
.reveal .close-button{
  position:absolute;
  top:14px;right:16px;
  width:32px;height:32px;
  border-radius:50%;
  background:var(--bg-alt);
  color:var(--brand-d);
  font-size:18px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .2s ease-out;
}
.reveal .close-button:hover{background:var(--accent-l);}
.modal-title{
  font-size:21px;
  font-weight:700;
  color:var(--brand-d);
  margin-bottom:8px;
}
.modal-sub{
  font-size:14.5px;
  color:var(--ink-2);
  margin-bottom:22px;
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea{
  width:100%;
  height:46px;
  padding:0 14px;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(224,134,47,.6);
}
.field-hint{font-size:12.5px;color:var(--ink-2);margin-top:6px;}
.field-error{font-size:13px;color:var(--err);margin-top:6px;display:none;}
.field.has-error input,
.field.has-error textarea{border-color:var(--err);}
.field.has-error .field-error{display:block;}
.check-line{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13.5px;
  color:var(--ink-2);
  margin:4px 0 20px;
  line-height:1.7;
}
.check-line input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto;}
.privacy-line{font-size:13px;color:var(--ink-2);margin-top:14px;line-height:1.7;}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--r-input);
  background:rgba(47,143,107,.1);
  border:1px solid rgba(47,143,107,.35);
  color:#226A4F;
  font-size:14px;
}
.form-success.is-visible{display:block;}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .guide-layout{grid-template-columns:270px minmax(0,1fr);gap:36px;}
  .nav-search{max-width:320px;}
}
@media screen and (max-width:991px){
  :root{--sp-xl:64px;}
  .nav-search{display:none;}
  .nav-toggle{display:block;}
  .brand-actions .btn{display:none;}
  .guide-layout{grid-template-columns:1fr;gap:28px;}
  .guide-toc{position:static;padding:18px;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:4px;scrollbar-width:none;}
  .toc-list::-webkit-scrollbar{display:none;}
  .toc-list li{margin:0;flex:0 0 auto;}
  .toc-list a{
    white-space:nowrap;
    border-left:0;
    border-bottom:3px solid transparent;
    border-radius:8px 8px 0 0;
    padding:8px 14px;
  }
  .toc-list a.is-current{border-left:0;border-bottom-color:var(--accent);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
  :root{--sp-xl:44px;--fs-body:16px;}
  .container{padding:0 18px;}
  .brand-text{font-size:17px;}
  .page-hero{padding:34px 0 40px;}
  .hero-sub{font-size:16px;}
  .section-head{margin-bottom:26px;}
  .card{box-shadow:none;border:1px solid var(--line);}
  .card:hover{transform:none;box-shadow:none;}
  .data-bar .data-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .cta-block{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-copy{flex-direction:column;gap:6px;}
  .reveal{padding:24px 20px;width:calc(100% - 24px);}
}
@media screen and (max-width:520px){
  .brand-text{font-size:16px;white-space:normal;line-height:1.35;}
  .brand-inner{min-height:64px;gap:12px;}
  .channel-nav a{padding:8px 15px;font-size:14px;}
  .data-bar .data-grid{grid-template-columns:1fr;}
  .prose h2{font-size:22px;padding-top:30px;}
  .prose h3{font-size:19px;}
}

/* roulang page: category3 */
:root{
  --ink:#1B1F1E;
  --ink-2:#5A625F;
  --brand:#12504B;
  --brand-d:#0B3A36;
  --brand-l:#1E6A63;
  --accent:#E0862F;
  --accent-l:#F6E3CB;
  --accent-ink:#8A4A12;
  --deep:#0E3B37;
  --bg:#F7F6F2;
  --bg-alt:#EDF2F0;
  --surface:#FFFFFF;
  --line:#DCDCD4;
  --ok:#2F8F6B;
  --err:#C6553A;
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-input:8px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,80,75,.06), 0 8px 24px -12px rgba(18,80,75,.18);
  --sh-2:0 2px 4px rgba(18,80,75,.08), 0 18px 38px -16px rgba(18,80,75,.26);
  --sp-xs:8px;
  --sp-s:16px;
  --sp-m:24px;
  --sp-l:40px;
  --sp-xl:64px;
  --sp-xxl:88px;
  --fs-h1:clamp(30px,3.6vw,46px);
  --fs-h2:clamp(23px,2.4vw,32px);
  --fs-h3:21px;
  --fs-body:16.5px;
  --fs-sm:14px;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:var(--fs-body);
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-d);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--ink);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:300;border-radius:0 0 var(--r-btn) 0;}
.skip-link:focus{left:0;color:#fff;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}

/* ---------- 容器与栅格 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--sp-m);}
@media (min-width:1400px){.container{max-width:1260px;}}
.grid-x.gutter-24{margin-left:-12px;margin-right:-12px;}
.grid-x.gutter-24 > .cell{padding-left:12px;padding-right:12px;}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line);max-height:90px;overflow:hidden;transition:max-height .25s ease-out,opacity .2s ease-out;}
body.is-scrolled .brand-bar{max-height:0;opacity:0;border-color:transparent;}
.brand-row{display:flex;align-items:center;gap:20px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand);font-weight:700;font-size:18px;flex:none;}
.brand:hover{color:var(--brand-d);}
.logo-mark{flex:none;color:var(--brand);}
.nav-search{display:flex;align-items:center;margin-left:auto;flex:1 1 auto;max-width:340px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--bg);overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;}
.nav-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 2px rgba(224,134,47,.35);}
.nav-search input[type="search"]{border:0;background:transparent;box-shadow:none;height:auto;min-height:0;margin:0;padding:10px 14px;font-size:14px;color:var(--ink);width:100%;font-family:inherit;}
.nav-search input[type="search"]:focus{box-shadow:none;outline:none;}
.nav-search button{border:0;background:transparent;color:var(--brand);padding:10px 14px;cursor:pointer;line-height:1;}
.nav-search button:hover{color:var(--accent);}
.brand-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);cursor:pointer;padding:0 11px;}
.nav-toggle span{display:block;height:2px;background:var(--brand);border-radius:2px;}
.channel-bar{background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out;}
body.is-scrolled .channel-bar{box-shadow:var(--sh-1);}
.channel-nav{display:flex;gap:10px;padding:10px 0;overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-nav a{
  flex:none;scroll-snap-align:start;font-size:15px;font-weight:600;line-height:1;
  padding:12px 20px;border-radius:var(--r-pill);border:1px solid var(--brand);color:var(--brand);
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.channel-nav a:hover{background:rgba(246,227,203,.7);color:var(--brand-d);transform:translateY(-1px);}
.channel-nav a.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.mobile-menu{display:none;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 24px 20px;}
.mobile-menu.is-open{display:flex;}
.mobile-menu a{padding:13px 0;font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px dashed var(--line);}
.mobile-menu a.active{color:var(--accent);}
.mobile-menu .btn{margin-top:14px;border-bottom:0;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;padding:14px 24px;border-radius:var(--r-btn);
  border:1.5px solid transparent;cursor:pointer;background:transparent;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn i{transition:transform .2s ease-out;font-size:13px;}
.btn:hover i{transform:translateX(2px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline{border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:rgba(246,227,203,.75);color:var(--brand-d);}
.btn-ghost{color:var(--brand);border-color:transparent;padding-left:6px;padding-right:6px;position:relative;}
.btn-ghost::after{content:"";position:absolute;left:6px;right:6px;bottom:8px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;}
.btn-ghost:hover::after{transform:scaleX(1);}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-xxl) 0;position:relative;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--accent);margin-bottom:10px;}
.section-head h2{font-size:var(--fs-h2);line-height:1.35;margin-bottom:12px;}
.section-head p{color:var(--ink-2);margin:0;}
.muted{color:var(--ink-2);}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.4px;padding:5px 12px;border-radius:var(--r-pill);background:var(--accent-l);color:var(--accent-ink);border:1px solid rgba(224,134,47,.35);}
.cloud-arc{display:block;width:100%;height:58px;}
.arc-divider{margin:0;line-height:0;}
.arc-divider svg{display:block;width:100%;height:70px;}

/* ---------- 分类页首屏 ---------- */
.page-hero{position:relative;padding:48px 0 0;background:linear-gradient(180deg,#F1F5F3 0%,var(--bg) 100%);overflow:hidden;}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(18,80,75,.13) 1px,transparent 1px);
  background-size:22px 22px;
}
.page-hero > .container{position:relative;z-index:2;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:22px;flex-wrap:wrap;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumb-sep{color:var(--line);}
.crumb-current{color:var(--brand);font-weight:600;}
.page-hero h1{font-size:var(--fs-h1);line-height:1.25;margin:16px 0 12px;}
.hero-sub{font-size:17px;font-weight:600;color:var(--brand);margin:0 0 12px;}
.hero-text{color:var(--ink-2);max-width:620px;margin:0 0 26px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2);border:1px solid var(--line);}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.hero-stat strong{display:block;font-size:26px;font-weight:700;line-height:1.2;color:var(--accent);}
.hero-stat span{font-size:13.5px;color:var(--ink-2);}

/* ---------- 图文交替 ---------- */
.zigzag{display:flex;flex-direction:column;gap:72px;}
.zigzag-row{align-items:center;}
.zigzag-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);border:1px solid var(--line);}
.zigzag-body h2{font-size:var(--fs-h2);line-height:1.35;margin:14px 0 12px;}
.zigzag-body p{color:var(--ink-2);margin:0 0 16px;}
.point-list{list-style:none;margin:0 0 18px;padding:0;}
.point-list li{position:relative;padding-left:22px;margin-bottom:8px;font-size:15.5px;color:var(--ink);}
.point-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand-l);}
.quote{margin:0;padding:14px 18px;border-left:3px solid var(--accent);background:var(--accent-l);border-radius:0 var(--r-card) var(--r-card) 0;font-weight:600;color:var(--brand-d);font-size:15.5px;}
@media (min-width:768px){
  .zigzag-row.reverse{flex-direction:row-reverse;}
}

/* ---------- 流程卡 ---------- */
.step-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;height:100%;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(18,80,75,.28);}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--brand);color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
.step-card h3{font-size:19px;margin-bottom:10px;}
.step-card p{color:var(--ink-2);font-size:15.5px;margin:0;}

/* ---------- 深色短评区 ---------- */
.section-deep{background:var(--deep);color:#CFDED9;}
.section-deep h2{color:#fff;font-size:var(--fs-h2);line-height:1.35;margin-bottom:12px;}
.section-deep .section-head p{color:rgba(207,222,217,.82);}
.voice-card{background:rgba(255,255,255,.06);border:1px solid rgba(207,222,217,.24);border-radius:var(--r-card);padding:28px 24px;height:100%;}
.voice-card p{color:#fff;font-size:17px;font-weight:600;line-height:1.7;margin:0 0 14px;}
.voice-card span{font-size:13.5px;color:rgba(207,222,217,.78);}

/* ---------- FAQ ---------- */
.faq-accordion{list-style:none;margin:0;padding:0;}
.faq-accordion .accordion-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out,box-shadow .2s ease-out;}
.faq-accordion .accordion-item.is-active{border-color:rgba(18,80,75,.35);box-shadow:var(--sh-1);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;font-size:16px;font-weight:600;color:var(--ink);
  background:transparent;border:0;line-height:1.6;
}
.faq-accordion .accordion-title:hover{background:var(--bg-alt);color:var(--brand);}
.faq-accordion .accordion-title::before{
  content:"+";position:static;order:2;margin:0;flex:none;
  font-size:20px;line-height:1;color:var(--brand);transition:transform .2s ease-out,color .2s ease-out;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−";transform:rotate(180deg);color:var(--accent);}
.faq-accordion .accordion-content{border:0;background:transparent;padding:0 20px 20px;color:var(--ink-2);line-height:1.85;}
.faq-accordion .accordion-content p{margin:0;}

/* ---------- CTA ---------- */
.cta-block{display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);padding:44px 40px;}
.cta-block h2{font-size:clamp(22px,2.2vw,28px);line-height:1.35;margin-bottom:10px;}
.cta-block p{margin:0;color:var(--ink-2);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 弹层与表单 ---------- */
.reveal{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:34px;}
.reveal .close-button{top:14px;right:16px;color:var(--ink-2);font-size:22px;line-height:1;}
.reveal .close-button:hover{color:var(--accent);}
.reveal h3{font-size:22px;margin:14px 0 8px;}
.modal-sub{font-size:14px;color:var(--ink-2);margin:0 0 20px;}
.c-form .field{margin-bottom:16px;}
.c-form label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--ink);}
.c-form input[type="text"],
.c-form input[type="email"],
.c-form textarea{
  width:100%;min-height:46px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink);
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-input);box-shadow:none;margin:0;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.c-form textarea{min-height:104px;resize:vertical;line-height:1.7;}
.c-form input[type="text"]:focus,
.c-form input[type="email"]:focus,
.c-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(224,134,47,.45);outline:none;}
.field-error{color:var(--err);font-size:13px;margin:6px 0 0;}
.check{display:flex;align-items:flex-start;gap:8px;font-size:14px;font-weight:400;color:var(--ink-2);margin:4px 0 12px;}
.check input{margin:4px 0 0;flex:none;}
.form-note{font-size:13px;color:var(--ink-2);margin:12px 0 0;}
.form-success{color:var(--ok);font-size:14px;font-weight:600;margin:12px 0 0;}
.reveal.fallback-open{display:block;z-index:2000;}
body.modal-open::before{content:"";position:fixed;inset:0;background:rgba(11,58,54,.6);z-index:1500;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#CFDED9;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col p{font-size:14px;line-height:1.9;color:#CFDED9;margin:0;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{font-size:14px;line-height:1.9;color:#CFDED9;}
.footer-col a{color:#CFDED9;border-bottom:1px solid transparent;transition:color .2s ease-out,border-color .2s ease-out;}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:12px;}
.footer-brand .logo-mark{color:#fff;}
.footer-copy{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:40px;padding-top:20px;border-top:1px solid rgba(207,222,217,.2);font-size:13px;color:rgba(207,222,217,.75);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-text{max-width:100%;}
}
@media (max-width:1024px){
  .section{padding:var(--sp-xl) 0;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .brand-row{gap:14px;}
  .nav-search{max-width:260px;}
}
@media (max-width:900px){
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .brand-actions{margin-left:auto;}
  .brand-name{font-size:16.5px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:44px 0;}
  .grid-x.gutter-24{margin-left:-8px;margin-right:-8px;}
  .grid-x.gutter-24 > .cell{padding-left:8px;padding-right:8px;}
  .page-hero{padding-top:32px;}
  .hero-stats{gap:22px;margin-top:28px;}
  .hero-stat strong{font-size:23px;}
  .zigzag{gap:48px;}
  .zigzag-body{margin-top:20px;}
  .step-card{box-shadow:none;}
  .cta-block{padding:28px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .reveal{padding:26px 20px;}
  .btn-block-mobile{width:100%;}
}
@media (max-width:520px){
  .brand-name{font-size:15.5px;line-height:1.3;}
  .channel-nav a{font-size:14px;padding:11px 16px;}
  .hero-actions .btn{width:100%;}
  .section-head{margin-bottom:32px;}
}