/* roulang page: index */
:root{
  --brand:#126A79;
  --brand-deep:#0B4854;
  --accent:#E97433;
  --accent-dark:#D86A2B;
  --accent-soft:#FBEFE6;
  --surface:#FFFFFF;
  --bg-alt:#F3F8F9;
  --line:#DCE7E9;
  --ink:#1C2E33;
  --muted:#60787E;
  --success:#2F7D5B;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 2px 4px rgba(11,72,84,.03),0 16px 32px rgba(11,72,84,.07);
  --shadow-card-hv:0 6px 14px rgba(11,72,84,.06),0 22px 42px rgba(11,72,84,.12);
  --space-section:96px;
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-main);
  color:var(--ink);
  background:var(--surface);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
ul,ol{padding:0;margin:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;font-size:1rem;}
p{margin:0 0 1rem;}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:var(--ink);margin:0 0 1rem;}
figure{margin:0;}

.site-container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding-top:var(--space-section);padding-bottom:var(--space-section);}
.bg-alt{background:var(--bg-alt);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:28px;height:3px;background:var(--accent);border-radius:99px;}
.section-title{font-size:clamp(28px,3.4vw,38px);margin-bottom:16px;}
.section-lead{font-size:17px;color:var(--muted);max-width:760px;margin-bottom:36px;}
.muted{color:var(--muted);}
.text-accent{color:var(--accent);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:16px;
  line-height:1;
  border:2px solid transparent;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn i{font-size:15px;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(233,116,51,.22);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(233,116,51,.28);}
.btn-outline{border-color:var(--brand);color:var(--brand);background:#fff;}
.btn-outline:hover{background:#EAF3F4;color:var(--brand-deep);transform:translateY(-2px);}
.btn-white{background:#fff;color:var(--brand-deep);}
.btn-white:hover{background:#F7FBFC;color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.16);}

.site-header{
  position:sticky;
  top:0;
  z-index:40;
  height:72px;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;height:72px;gap:24px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-weight:800;
  font-size:21px;
  color:var(--ink);
}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand-deep);
  color:#fff;
  font-size:18px;
  font-weight:800;
  border-radius:12px 4px 12px 12px;
}
.brand-text b{color:var(--accent);font-weight:800;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  padding:10px 2px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  border-radius:99px;
  background:var(--brand);
  transition:width .3s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--brand-deep);}
.nav-link.active::before{
  content:"";
  display:block;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
  margin:0 auto 4px;
  box-shadow:0 0 0 4px rgba(233,116,51,.14);
}
.nav-cta{
  margin-left:6px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 20px;
  background:var(--accent);
  color:#fff;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15px;
  transition:background .25s,transform .25s;
  box-shadow:0 8px 16px rgba(233,116,51,.2);
}
.nav-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:99px;transition:.3s;}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.menu-open .nav-toggle span:nth-child(2){opacity:0;}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-nav{
  position:fixed;
  inset:0;
  z-index:60;
  background:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:10px;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
body.menu-open .mobile-nav{opacity:1;visibility:visible;}
.mobile-nav .mn-link{
  font-size:28px;
  font-weight:800;
  color:var(--ink);
  padding:10px 20px;
  border-radius:14px;
}
.mobile-nav .mn-link.active{background:var(--bg-alt);color:var(--brand);}
.mobile-nav .mn-link small{display:block;font-size:13px;color:var(--muted);font-weight:400;line-height:1.4;margin-top:4px;}
.mobile-nav .btn{margin-top:16px;min-width:180px;}
.mobile-nav-close{
  position:absolute;
  top:16px;right:20px;
  width:48px;height:48px;
  font-size:24px;
  border-radius:50%;
  background:var(--bg-alt);
}

.hero{
  position:relative;
  background:
    linear-gradient(118deg,rgba(243,248,249,.94) 0%,rgba(255,255,255,.92) 55%,rgba(255,255,255,.88) 100%),
    url("/assets/images/backpic/back-1.png") right top / cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero .site-container{padding-top:86px;padding-bottom:80px;}
.hero-copy h1{font-size:clamp(36px,5vw,58px);line-height:1.18;margin-bottom:24px;font-weight:800;letter-spacing:-.01em;}
.hero-side{
  font-size:18px;
  color:var(--muted);
  max-width:580px;
  margin-bottom:34px;
}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:42px;}
.hero-proof{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  gap:18px;
  padding-top:24px;
  max-width:620px;
}
.hip-proof .hp-icon{color:var(--brand);font-size:18px;margin-bottom:4px;}
.hero-proof .hp-label{font-size:14px;font-weight:700;color:var(--ink);display:block;}
.hero-proof .hp-text{font-size:13px;color:var(--muted);line-height:1.5;display:block;margin-top:2px;}
.hero-media{position:relative;padding:14px 0 14px 22px;}
.hero-figure{
  border-radius:28px;
  overflow:hidden;
  box-shadow:var(--shadow-card-hv);
  border:8px solid #fff;
  transform:rotate(1.2deg);
}
.hero-figure img{width:100%;height:440px;object-fit:cover;}
.hero-float{
  position:absolute;
  bottom:6px;
  left:-6px;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 20px;
  width:260px;
  box-shadow:var(--shadow-card-hv);
}
.hero-float strong{display:block;color:var(--ink);font-size:16px;}
.hero-float small{color:var(--muted);font-size:13px;line-height:1.5;display:block;}

.pain-icon{
  width:42px;height:42px;
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:var(--accent-soft);
  color:var(--accent);
}
.pain-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.pain-item:last-child{border-bottom:0;}
.pain-text h3{font-size:18px;margin:0 0 4px;}
.pain-text p{margin:0;color:var(--muted);font-size:15px;}
.pain-media{position:relative;}
.pain-media .img-main{
  border-radius:24px;
  width:100%;
  height:520px;
  object-fit:cover;
  box-shadow:var(--shadow-card-hv);
}
.pain-quote{
  position:absolute;
  bottom:20px;
  left:-18px;
  right:24px;
  background:rgba(255,255,255,.92);
  border-radius:18px;
  border-left:4px solid var(--brand);
  padding:18px 20px;
  box-shadow:var(--shadow-card);
  font-size:15px;
  color:var(--ink);
  line-height:1.7;
}
.pain-transition{
  margin-top:20px;
  padding:14px 18px;
  border-radius:14px;
  background:var(--bg-alt);
  color:var(--muted);
  font-size:15px;
  border:1px solid var(--line);
}

.solution-wrap{display:flex;gap:16px;flex-wrap:wrap;margin:28px 0 48px;}
.flow-step{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:22px 20px;
  flex:1 1 160px;
  position:relative;
  box-shadow:0 2px 8px rgba(11,72,84,.03);
}
.flow-index{
  font-size:26px;
  font-weight:800;
  line-height:1;
  color:var(--brand);
  opacity:.35;
  display:block;
  margin-bottom:10px;
}
.flow-step h3{font-size:16px;margin-bottom:6px;}
.flow-step p{margin:0;font-size:14px;color:var(--muted);}

.channel-main{
  background:var(--brand-deep);
  border-radius:24px;
  overflow:hidden;
  color:#fff;
  margin-bottom:24px;
  box-shadow:var(--shadow-card-hv);
}
.channel-main .cell{padding:0;}
.channel-img img{width:100%;height:290px;object-fit:cover;display:block;}
.channel-body{padding:38px 36px;color:rgba(255,255,255,.9);}
.channel-body .channel-tag{color:var(--accent-soft);}
.channel-body h3{color:#fff;font-size:30px;margin-bottom:14px;}
.channel-body p{font-size:15px;color:rgba(255,255,255,.84);margin-bottom:20px;}
.channel-btn{
  color:#fff;
  border-bottom:2px solid var(--accent);
  padding-bottom:4px;
  font-weight:600;
  font-size:15px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.channel-btn:hover{color:#ffe3d4;}
.channel-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease;
  margin-bottom:24px;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card-hv);}
.channel-card-cover{height:190px;overflow:hidden;}
.channel-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.channel-card:hover .channel-card-cover img{transform:scale(1.04);}
.channel-card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.channel-card-body h3{font-size:20px;margin-bottom:8px;}
.channel-card-body p{font-size:14px;color:var(--muted);flex:1;margin-bottom:18px;}
.channel-link{font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:8px;}
.channel-link i{transition:transform .2s;}
.channel-link:hover i{transform:translateX(4px);}

.achievement-panel{
  background:
    linear-gradient(135deg,rgba(11,72,84,.98),rgba(18,106,121,.9)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border-radius:26px;
  padding:52px 40px;
  color:#fff;
  margin-bottom:56px;
  position:relative;
  overflow:hidden;
}
.achievement-panel::before{
  content:"";
  position:absolute;
  width:300px;height:300px;
  right:-80px;top:-90px;
  border-radius:50%;
  opacity:.12;
  background:var(--accent);
}
.achievement-title{color:#fff;font-size:clamp(24px,2.8vw,32px);}
.achievement-title i{color:var(--accent-soft);}
.achievement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;}
.stat-block{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:24px;text-align:center;}
.stat-block strong{font-size:44px;display:block;line-height:1;color:var(--accent-soft);}
.stat-block span{display:block;font-size:15px;color:rgba(255,255,255,.9);margin-top:10px;font-weight:600;}
.stat-block small{font-size:12px;color:rgba(255,255,255,.62);line-height:1.4;display:block;margin-top:6px;}

.case-row{display:flex;align-items:center;gap:32px;margin-bottom:56px;}
.case-row .case-img{flex:0 0 44%;max-width:44%;}
.case-row .case-img img{width:100%;height:260px;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-card-hv);}
.case-row .case-copy h3{font-size:22px;margin-bottom:10px;}
.case-row .case-copy p{color:var(--muted);font-size:15px;}
.case-row .case-tag{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:99px;padding:4px 14px;font-size:13px;font-weight:700;margin-bottom:12px;}
.case-meta{font-size:14px;color:var(--muted);border-left:3px solid var(--brand);padding-left:12px;margin-top:16px;}

.testy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center;}
.testy-grid .testy{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow-card);}
.testy-grid .testy.mid{transform:scale(1.06);box-shadow:var(--shadow-card-hv);border-color:transparent;}
.testy-quote{
  color:var(--accent);
  font-size:34px;
  line-height:1;
  margin-bottom:12px;
  opacity:.5;
}
.testy-grid blockquote{margin:0 0 20px;color:var(--ink);font-size:16px;line-height:1.85;border:0;background:transparent;padding:0;}
.testy-person p{margin:0;color:var(--muted);font-size:14px;}
.testy-avatar{width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;margin-right:10px;vertical-align:middle;}

.news-section{
  border-top:0;
}
.news-feature{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  height:100%;
}
.news-feature-cover{height:240px;overflow:hidden;background:var(--bg-alt);}
.news-feature-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-feature:hover .news-feature-cover img{transform:scale(1.03);}
.news-feature-body{padding:26px;}
.news-tag{
  display:inline-block;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:13px;
  border-radius:99px;
  padding:3px 14px;
  margin-bottom:12px;
  font-weight:600;
}
.news-feature-title{font-size:22px;line-height:1.45;margin-bottom:12px;}
.news-feature-summary{color:var(--muted);font-size:15px;margin-bottom:18px;}
.news-mini-list{display:flex;flex-direction:column;gap:16px;}
.news-mini{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px;
  display:flex;
  gap:16px;
  align-items:center;
  box-shadow:0 2px 6px rgba(11,72,84,.03);
  transition:border-color .25s,transform .25s;
}
.news-mini:hover{border-color:var(--brand);transform:translateY(-3px);}
.news-mini-main{flex:1;min-width:0;}
.news-mini-main h3{font-size:16px;margin-bottom:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-mini-main p{margin:0;font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-mini-link{color:var(--brand);font-size:16px;flex:0 0 24px;}
.news-empty{
  background:#fff;
  border:1px dashed var(--line);
  border-radius:20px;
  padding:60px 30px;
  text-align:center;
  color:var(--muted);
}
.news-empty i{font-size:34px;color:var(--brand);margin-bottom:12px;}
.news-empty h3{font-size:20px;margin-bottom:10px;}
.news-empty p{font-size:15px;color:var(--muted);max-width:420px;margin:0 auto 20px;}
.news-empty .news-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}

.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:0;
  margin-bottom:16px;
  overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.faq-item:hover{border-color:#b7d0d5;}
.faq-item.open{border-color:var(--brand);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  text-align:left;
  padding:20px 22px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  background:#fff;
}
.faq-dot{width:8px;height:8px;border-radius:50%;background:var(--line);flex:0 0 8px;transition:background .3s;}
.faq-item.open .faq-dot{background:var(--accent);box-shadow:0 0 0 4px rgba(233,116,51,.15);}
.faq-icon{
  margin-left:auto;
  width:28px;height:28px;
  border-radius:8px;
  background:var(--bg-alt);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  transition:transform .3s,background .3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-copy{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease,padding .35s ease;
}
.faq-item.open .faq-copy{max-height:500px;}
.faq-answer{padding:0 22px 20px 46px;color:var(--muted);font-size:15px;line-height:1.8;}

.contact-cta{
  position:relative;
  background:
    linear-gradient(120deg,rgba(11,72,84,.98),rgba(11,72,84,.88)),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  color:#fff;
  padding:76px 0;
}
.contact-cta *{color:#fff;}
.contact-cta h2{color:#fff;font-size:clamp(28px,3.4vw,38px);line-height:1.3;}
.contact-cta .lead-copy{color:rgba(255,255,255,.84);font-size:16px;margin-bottom:22px;max-width:520px;}
.contact-points{display:flex;flex-direction:column;gap:14px;margin-top:14px;font-size:15px;color:rgba(255,255,255,.9);}
.contact-points i{color:var(--accent-soft);width:24px;}
.contact-card{
  background:#fff;
  border-radius:22px;
  padding:30px;
  box-shadow:0 24px 60px rgba(0,0,0,.2);
}
.contact-card h3{color:var(--ink);font-size:22px;margin-bottom:6px;}
.contact-card>p{color:var(--muted);font-size:14px;margin-bottom:18px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;
  min-height:48px;
  border:1px solid var(--line);
  border-radius:10px;
  padding:10px 14px;
  background:#fff;
  color:var(--ink);
  transition:border-color .25s,box-shadow .25s;
}
.form-field textarea{min-height:96px;resize:vertical;}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,106,121,.12);
}
.form-field-full{grid-column:1/3;}
.form-privacy{
  grid-column:1/3;
  display:flex;
  gap:8px;
  align-items:center;
  font-size:13px;
  color:var(--muted);
  background:var(--bg-alt);
  border-radius:10px;
  padding:10px 14px;
}
.form-submit{grid-column:1/3;margin-top:4px;}
.toast{
  position:fixed;
  bottom:24px;right:24px;
  background:var(--brand-deep);
  color:#fff;
  padding:16px 20px;
  border-radius:12px;
  box-shadow:var(--shadow-card-hv);
  transform:translateY(30px);
  opacity:0;
  visibility:hidden;
  transition:.35s ease;
  z-index:90;
  max-width:330px;
  font-size:14px;
}
.toast.show{opacity:1;visibility:visible;transform:translateY(0);}

.site-footer{background:#fff;border-top:1px solid var(--line);padding:60px 0 32px;}
.footer-grid{display:grid;grid-template-columns:2.2fr 1.2fr 1.2fr 1.5fr;gap:32px;margin-bottom:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink);margin-bottom:12px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px;}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.7;max-width:300px;}
.footer-col h4{font-size:16px;font-weight:700;margin-bottom:14px;color:var(--ink);}
.footer-col a{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:color .25s,transform .25s;}
.footer-col a:hover{color:var(--brand);transform:translateX(3px);}
.footer-col p{color:var(--muted);font-size:14px;margin-bottom:6px;}
.footer-col i{width:22px;color:var(--brand);}
.footer-copy{border-top:1px solid var(--line);padding-top:20px;font-size:13px;color:var(--muted);text-align:center;}

@media screen and (max-width: 1024px){
  :root{--space-section:72px;}
  .main-nav{gap:16px;}
  .nav-cta{padding:0 14px;}
  .hero-figure img{height:360px;}
  .achievement-grid{gap:16px;}
  .achievement-panel{padding:40px 24px;}
  .stat-block strong{font-size:34px;line-height:1.2;}
  .testy-grid{grid-template-columns:1fr;max-width:680px;margin:0 auto;}
  .testy-grid .testy.mid{transform:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .case-row{flex-direction:column;text-align:center;}
  .case-row .case-img{flex:none;max-width:680px;width:100%;}
  .case-row p,.case-row .case-meta{text-align:left;}
}

@media screen and (max-width: 860px){
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-figure img{height:320px;}
  .hero-actions .btn{flex:1;}
  .achievement-grid{grid-template-columns:1fr;}
  .hero-proof{grid-template-columns:repeat(3,1fr);}
  .news-feature{margin-bottom:20px;}
}

@media screen and (max-width: 640px){
  :root{--space-section:52px;}
  .site-container{padding:0 16px;}
  .section-title{font-size:28px;}
  .hero .site-container{padding-top:44px;padding-bottom:56px;}
  .hero-copy h1{font-size:34px;line-height:1.2;}
  .hero-side{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-figure img{height:240px;}
  .hero-float{width:200px;padding:12px 16px;}
  .hero-proof{grid-template-columns:repeat(3,1fr);gap:10px;padding-top:16px;}
  .hero-proof .hp-text{font-size:12px;}
  .pain-media .img-main{height:330px;}
  .pain-quote{left:10px;right:10px;}
  .form-grid{grid-template-columns:1fr;}
  .form-field-full{grid-column:auto;}
  .form-privacy{grid-column:auto;}
  .footer-grid{grid-template-columns:1fr;}
  .contact-cta{padding:52px 0;}
  .case-row .case-img img{height:210px;}
  .footer-copy{font-size:12px;line-height:1.6;}
  .news-mini{flex-wrap:wrap;}
}

/* roulang page: article */
:root {
  --brand: #126A79;
  --brand-deep: #0B4854;
  --accent: #E97433;
  --accent-soft: #FBEFE6;
  --surface: #FFFFFF;
  --bg-alt: #F3F8F9;
  --line: #DCE7E9;
  --ink: #1C2E33;
  --muted: #60787E;
  --success: #2F7D5B;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 4px rgba(11,72,84,.04), 0 16px 32px rgba(11,72,84,.07);
  --shadow-lg: 0 10px 24px rgba(11,72,84,.10), 0 28px 60px rgba(11,72,84,.12);
  --space-section: 96px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, transform .25s ease, box-shadow .25s ease; }
a:hover { color: var(--accent); }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; }
p { margin: 0 0 1.2em; }
ul, ol { margin: 0 0 1.4em; padding-left: 1.4em; }

.site-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  min-height: 72px;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  border-radius: 12px;
  box-shadow: 0 6px 16px rgba(18,106,121,.24);
}
.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .01em;
}
.brand-text b {
  color: var(--accent);
  background: var(--accent-soft);
  padding: 0 8px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  margin-left: 4px;
  vertical-align: 3px;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  flex: 1;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateX(-50%) scale(0);
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--brand); }
.nav-link.active { color: var(--brand); }
.nav-link.active::after { transform: translateX(-50%) scale(1); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  flex-shrink: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(233,116,51,.28);
}
.nav-cta:hover {
  color: #fff;
  background: #D86A2B;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(233,116,51,.34);
}
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: border-color .2s ease, background .2s ease;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 6px;
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-nav {
  display: none;
}

/* article band */
.article-band {
  position: relative;
  background-color: var(--bg-alt);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.article-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(243,248,249,.96) 0%, rgba(243,248,249,.88) 65%, rgba(243,248,249,.68) 100%);
}
.article-band .site-container {
  position: relative;
  z-index: 2;
  padding-top: 44px;
  padding-bottom: 40px;
}
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
}
.crumb a {
  color: var(--muted);
  font-weight: 600;
}
.crumb a:hover { color: var(--brand); }
.crumb i { color: var(--line); font-size: 11px; }
.crumb-current {
  color: var(--ink);
  font-weight: 700;
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.band-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
}
.band-heading .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-deep);
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(220,231,233,.8);
  padding: 7px 15px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.band-heading .eyebrow i { color: var(--accent); }
.band-text {
  font-size: 30px;
  font-weight: 800;
  margin: 0;
  color: var(--ink);
}
.band-sub {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 15px;
}
.article-first-section {
  --space-section: 88px;
}

/* btn */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  background: transparent;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: transform .25s ease, background .25s ease, border-color .25s ease, color .25s ease, box-shadow .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible,
.nav-link:focus-visible,
.brand:focus-visible,
.nav-toggle:focus-visible {
  outline: 3px solid rgba(233,116,51,.32);
  outline-offset: 2px;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 22px rgba(233,116,51,.24);
}
.btn-accent:hover {
  background: #D86A2B;
  color: #fff;
  box-shadow: 0 14px 30px rgba(233,116,51,.34);
}
.btn-outline {
  border-color: var(--brand);
  color: var(--brand);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(18,106,121,.08);
  color: var(--brand-deep);
}
.btn-light {
  background: #fff;
  color: var(--brand-deep);
}
.btn-light:hover { background: #F3F8F9; color: var(--brand); }

/* article main */
.article-main {
  background: #fff;
  padding: 56px 0 86px;
}
.article-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-container {
  width: 100%;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 4vw, 52px);
  border: 1px solid var(--line);
  margin-top: -22px;
  position: relative;
}
.article-heading {
  border-bottom: 1px solid var(--line);
  padding-bottom: 30px;
  margin-bottom: 32px;
}
.article-tags-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-bottom: 18px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
}
.date-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.article-heading h1 {
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.28;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .01em;
  margin: 12px 0 4px;
}
.article-lead {
  display: block;
  margin-top: 18px;
  padding: 18px 22px 18px 24px;
  background: var(--bg-alt);
  border-left: 4px solid var(--brand);
  color: #2F4B53;
  font-size: 15px;
  line-height: 1.8;
}
.article-divider { border: 0; border-top: 1px dashed var(--line); margin: 30px 0; }

/* cms content */
.cms-content {
  color: #263A41;
  font-size: 17px;
  line-height: 1.95;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.cms-content > *:first-child { margin-top: 0; }
.cms-content p { margin: 0 0 1.5em; }
.cms-content h2 {
  margin: 2em 0 1em;
  font-size: 26px;
  line-height: 1.4;
  color: var(--ink);
  font-weight: 800;
  padding-left: 16px;
  position: relative;
}
.cms-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .22em;
  width: 6px;
  height: .78em;
  background: var(--brand);
  border-radius: 6px;
}
.cms-content h3 {
  margin: 2em 0 .8em;
  font-size: 21px;
  line-height: 1.5;
  font-weight: 800;
  color: var(--ink);
}
.cms-content h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  margin-right: 10px;
  vertical-align: 3px;
}
.cms-content h4 {
  margin: 1.8em 0 .7em;
  font-size: 18px;
  font-weight: 800;
  color: var(--brand-deep);
}
.cms-content img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 2em auto;
  width: auto;
  max-width: 100%;
}
.cms-content figure { margin: 2em auto; text-align: center; }
.cms-content figure img { margin: 0 auto .8em; }
.cms-content figure figcaption {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  padding: 0 12px;
}
.cms-content blockquote {
  margin: 2em 0;
  padding: 22px 26px;
  background: var(--accent-soft);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #5B4638;
  font-style: normal;
}
.cms-content blockquote p { margin-bottom: .6em; }
.cms-content blockquote p:last-child { margin-bottom: 0; }
.cms-content a {
  color: var(--brand);
  border-bottom: 1px solid rgba(18,106,121,.26);
  font-weight: 600;
}
.cms-content a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.cms-content ul,
.cms-content ol { margin: 1.4em 0 1.8em; padding-left: 1.6em; }
.cms-content li { margin: .5em 0; padding-left: .2em; }
.cms-content ul li::marker { color: var(--brand); }
.cms-content strong { color: var(--ink); font-weight: 800; }
.cms-content table {
  width: 100%;
  margin: 2em 0;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 15px;
}
.cms-content th {
  background: var(--brand-deep);
  color: #fff;
  padding: 13px 16px;
  text-align: left;
  font-weight: 700;
  letter-spacing: .02em;
}
.cms-content td {
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  color: #2A3A40;
}
.cms-content tr:nth-child(even) td { background: var(--bg-alt); }
.cms-content iframe {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  margin: 2em 0;
}
.cms-content hr {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 2.5em 0;
}

/* article page nav */
.article-page-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.back-news-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
  min-height: 44px;
  font-size: 14px;
}
.back-news-link:hover { color: var(--brand); }
.share-note {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}
.share-note i { color: var(--accent); }

/* empty state */
.article-empty {
  text-align: center;
  padding: 70px 20px;
  max-width: 620px;
  margin: 0 auto;
}
.article-empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin-bottom: 22px;
}
.article-empty h1 {
  font-size: 36px;
  font-weight: 800;
  margin: 0 0 12px;
  color: var(--ink);
}
.article-empty p { color: var(--muted); margin-bottom: 28px; }

/* related block */
.related-section {
  background: var(--bg-alt);
  padding: var(--space-section) 0;
}
.section-heading {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin-bottom: 42px;
}
.section-heading .eyebrow {
  font-size: 13px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: .14em;
  margin: 0 0 10px;
}
.section-heading .eyebrow i { margin-right: 6px; }
.section-heading h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1.3;
  color: var(--ink);
  font-weight: 800;
  position: relative;
  padding-left: 18px;
}
.section-heading h2::before {
  content: "";
  width: 7px;
  height: 1.1em;
  background: var(--brand);
  border-radius: 8px;
  position: absolute;
  left: 0;
  top: .04em;
}
.section-heading p {
  max-width: 420px;
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}
.related-row { row-gap: 26px; }
.rel-card {
  height: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.rel-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.rel-card-img { overflow: hidden; position: relative; aspect-ratio: 16 / 10; background: var(--bg-alt); }
.rel-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.rel-card:hover .rel-card-img img { transform: scale(1.05); }
.rel-card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.rel-card-body h3 {
  font-size: 18px;
  line-height: 1.5;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--ink);
}
.rel-card-body p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0 0 20px;
  flex: 1;
}
.rel-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
  color: var(--brand);
}
.rel-more i { transition: transform .2s ease; }
.rel-card:hover .rel-more i { transform: translateX(4px); }
.rel-more:hover { color: var(--accent); }

/* article contact cta */
.article-cta {
  padding: 72px 0 88px;
  background: #fff;
}
.article-cta-box {
  background: linear-gradient(135deg, var(--accent-soft) 0%, #FDF6F0 48%, #F1F8FA 100%);
  border: 1px solid #F0E0D4;
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.article-cta-box::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -80px;
  top: -100px;
  border: 34px solid rgba(255,255,255,.35);
  border-radius: 50%;
}
.article-cta-box .cta-content { max-width: 660px; position: relative; z-index: 2; }
.article-cta-box h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.45;
  margin: 0 0 12px;
  color: var(--ink);
}
.article-cta-box p {
  color: var(--muted);
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}
.article-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  position: relative;
  z-index: 2;
}

/* footer */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding-top: 70px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2.4fr 1fr 1.4fr 1.8fr;
  gap: 42px;
  padding-bottom: 46px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--ink); }
.footer-brand .brand-mark { width: 34px; height: 34px; font-size: 18px; border-radius: 10px; }
.footer-desc { margin-top: 16px; color: var(--muted); font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 {
  margin: 4px 0 18px;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}
.footer-col a {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.footer-col a:hover { color: var(--brand); }
.footer-col p {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 13px;
  line-height: 1.6;
}
.footer-col p i { color: var(--brand); width: 18px; text-align: center; }
.footer-copy {
  border-top: 1px solid var(--line);
  padding: 22px 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* foundation grid overrides */
.related-row .cell { display: flex; }

@media (min-width: 1025px) and (max-width: 1240px) {
  .main-nav { gap: 16px; }
  .brand-text { font-size: 20px; }
  .site-container { padding-left: 22px; padding-right: 22px; }
}
@media (max-width: 1024px) {
  :root { --space-section: 72px; }
  .main-nav, .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-inner { min-height: 64px; }
  .mobile-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 40px rgba(11,72,84,.18);
    padding: 22px;
  }
  .mobile-nav.open { display: block; }
  .mobile-nav .mobile-nav-inner {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .mobile-nav .nav-link {
    min-height: 52px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    justify-content: space-between;
    font-size: 18px;
    font-weight: 800;
    color: var(--ink);
  }
  .mobile-nav .nav-link.active { background: var(--bg-alt); color: var(--brand); }
  .mobile-nav .nav-link.active::after { display: none; }
  .mobile-nav .mobile-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    margin-top: 14px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 800;
  }
  .mobile-nav .mobile-cta:hover { background: #D86A2B; color: #fff; }
  .article-container { margin-top: 0; }
  .article-inner { padding: 0 16px; }
  .article-band .site-container { padding-bottom: 26px; }
}
@media (max-width: 639px) {
  .brand-text { font-size: 18px; }
  .brand-mark { width: 34px; height: 34px; font-size: 18px; border-radius: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; padding-bottom: 36px; }
  .section-heading { align-items: stretch; flex-direction: column; }
  .section-heading h2 { font-size: 27px; }
  .btn { width: 100%; }
  .article-cta-box, .article-cta-box .cta-content { text-align: left; }
  .article-cta-actions .btn { width: 100%; }
  .related-card .related-card-img { aspect-ratio: 16 / 9; }
  .article-inner { padding: 0; }
  .article-container {
    border-left: 0;
    border-right: 0;
    border-radius: 0;
    padding: 26px 20px 38px;
  }
  .article-page-nav { flex-direction: column; align-items: stretch; text-align: center; }
  .footer-col p { align-items: flex-start; }
  :root { --space-section: 52px; }
}

@media (min-width: 640px) and (max-width: 1024px) {
  .article-inner { padding: 0 18px; }
  .article-container { padding: 34px 28px; }
  .related-row { row-gap: 22px; }
}

/* roulang page: category1 */
:root {
  --brand: #126A79;
  --brand-deep: #0B4854;
  --accent: #E97433;
  --accent-deep: #D86A2B;
  --accent-soft: #FBEFE6;
  --surface: #FFFFFF;
  --bg-alt: #F3F8F9;
  --line: #DCE7E9;
  --ink: #1C2E33;
  --muted: #60787E;
  --success: #2F7D5B;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-sm: 0 2px 4px rgba(11, 72, 84, .03), 0 16px 32px rgba(11, 72, 84, .07);
  --shadow-hover: 0 18px 40px rgba(11, 72, 84, .12);
  --transition: all .25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: color .2s ease, background-color .25s ease, box-shadow .25s ease, transform .25s ease;
}

a:hover {
  color: var(--brand-deep);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid rgba(18, 106, 121, .35);
  outline-offset: 2px;
  border-radius: 6px;
}

.site-container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.grid-container {
  max-width: 1200px;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
}

.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand);
  color: #fff;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(18, 106, 121, .2);
}

.brand-text b {
  color: var(--brand);
  font-weight: 800;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
}

.nav-link {
  position: relative;
  padding: 10px 2px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
}

.nav-link:hover {
  color: var(--brand);
}

.nav-link.active {
  color: var(--brand);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 4px;
  background: var(--accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 22px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 10px 22px rgba(233, 116, 51, .24);
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--accent-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(233, 116, 51, .3);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============ 通用段落 ============ */
.section {
  padding: 92px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-head {
  max-width: 780px;
  margin-bottom: 46px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: .5px;
  margin-bottom: 14px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.section-head h2 {
  font-size: clamp(28px, 3.4vw, 36px);
  line-height: 1.3;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.5px;
  margin-bottom: 16px;
}

.section-head .lead {
  font-size: 16px;
  color: var(--muted);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 30px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  transition: var(--transition);
}

.cta-btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(233, 116, 51, .26);
}

.cta-btn.primary:hover {
  background: var(--accent-deep);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 16px 30px rgba(233, 116, 51, .32);
}

.cta-btn.ghost {
  border: 2px solid var(--brand);
  color: var(--brand);
  background: transparent;
}

.cta-btn.ghost:hover {
  background: rgba(18, 106, 121, .08);
  transform: translateY(-3px);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--brand);
}

.card-link i {
  transition: transform .2s ease;
}

.card-link:hover i {
  transform: translateX(4px);
}

/* ============ 分类页 Hero ============ */
.category-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 84px;
  background:
    linear-gradient(105deg, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .90) 40%, rgba(243, 248, 249, .72) 70%, rgba(243, 248, 249, .30) 100%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  background-color: var(--bg-alt);
}

.category-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(233, 116, 51, .08);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 660px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(18, 106, 121, .18);
  color: var(--brand);
  font-weight: 600;
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}

.category-hero h1 {
  font-size: clamp(42px, 5vw, 60px);
  line-height: 1.1;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -1px;
  margin-bottom: 18px;
}

.category-hero h1 .hero-slash {
  color: var(--accent);
}

.hero-lead {
  font-size: 20px;
  font-weight: 600;
  color: var(--brand-deep);
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 17px;
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid rgba(28, 46, 51, .12);
  width: 100%;
  max-width: 620px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  background: rgba(255, 255, 255, .62);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(220, 231, 233, .8);
}

.hero-tags i {
  color: var(--accent);
}

/* ============ 服务能力区 ============ */
.split-panel {
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 56px;
  align-items: center;
}

.split-features {
  margin-top: 28px;
  display: grid;
  gap: 10px;
}

.feature-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 18px 18px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 18px;
  color: var(--brand);
  background: rgba(18, 106, 121, .1);
}

.feature-item strong {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}

.feature-item p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.visual-card {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  background: var(--bg-alt);
}

.visual-card img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.visual-note {
  position: absolute;
  left: 20px;
  bottom: 20px;
  right: 20px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(10px);
  border-radius: 14px;
  padding: 16px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  border-left: 4px solid var(--accent);
  box-shadow: 0 10px 20px rgba(11, 72, 84, .1);
}

.visual-note small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 400;
}

/* ============ 支持体系 ============ */
.system-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.system-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

.system-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.system-card .system-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 24px;
  color: #fff;
  background: var(--brand);
  margin-bottom: 20px;
}

.system-card:nth-child(2) .system-icon {
  background: var(--accent);
}

.system-card:nth-child(3) .system-icon {
  background: var(--success);
}

.system-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.system-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.system-card::after {
  content: "";
  position: absolute;
  top: 24px;
  right: 24px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .7;
}

/* ============ 案例区 ============ */
.case-row {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 24px;
  align-items: stretch;
}

.case-large {
  background: var(--brand-deep);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 440px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-sm);
}

.case-large img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .82;
  transition: transform .5s ease, opacity .4s ease;
}

.case-large:hover img {
  transform: scale(1.04);
  opacity: .66;
}

.case-large-content {
  position: relative;
  z-index: 2;
  padding: 30px;
  color: #fff;
  background: linear-gradient(180deg, rgba(11, 72, 84, 0) 0%, rgba(8, 40, 50, .78) 72%);
  width: 100%;
}

.case-large-content .case-tag {
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .28);
  color: #fff;
}

.case-large-content h3 {
  font-size: 26px;
  margin: 12px 0 8px;
}

.case-large-content p {
  font-size: 14px;
  line-height: 1.7;
  max-width: 520px;
  opacity: .9;
  margin-bottom: 10px;
}

.case-card-link {
  color: #fff;
  font-weight: 600;
}

.case-card-link:hover {
  color: var(--accent-soft);
}

.case-side {
  display: grid;
  gap: 24px;
}

.case-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: stretch;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.case-card img {
  height: 100%;
  min-height: 180px;
  object-fit: cover;
}

.case-card-body {
  padding: 20px 18px;
}

.case-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 10px;
}

.case-card h3 {
  font-size: 17px;
  line-height: 1.45;
  font-weight: 700;
  margin-bottom: 6px;
}

.case-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

.case-grid-simple {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 22px;
}

/* ============ 流程时间线 ============ */
.process-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-track::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  border-radius: 2px;
  opacity: .18;
}

.process-step {
  position: relative;
  padding-top: 0;
}

.step-dot {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: var(--brand);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 18px;
  box-shadow: 0 14px 30px rgba(18, 106, 121, .18);
  position: relative;
  z-index: 2;
}

.step-dot.two {
  background: var(--brand-deep);
}

.step-dot.three {
  background: var(--accent);
}

.step-dot.four {
  background: var(--success);
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ============ 适用场景 ============ */
.scenario-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-sm);
}

.scenario-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.scenario-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  font-weight: 600;
  color: var(--ink);
  font-size: 14px;
  transition: var(--transition);
}

.scenario-item i {
  color: var(--accent);
}

.scenario-item:hover {
  border-color: var(--brand);
  background: rgba(18, 106, 121, .06);
  color: var(--brand);
  transform: translateY(-2px);
}

.news-strip {
  margin-top: 26px;
  padding: 20px 24px;
  border-radius: 18px;
  background: var(--bg-alt);
  border-left: 4px solid var(--brand);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 24px;
}

.news-strip i {
  color: var(--brand);
  font-size: 20px;
}

.news-strip p {
  margin: 0;
  color: var(--muted);
  flex: 1 1 280px;
  font-size: 14px;
}

.news-strip p strong {
  color: var(--ink);
  display: block;
  font-size: 16px;
  margin-bottom: 2px;
}

/* ============ FAQ ============ */
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  margin-bottom: 14px;
  transition: box-shadow .25s ease, border-color .25s ease;
  overflow: hidden;
}

.faq-item.open {
  border-color: rgba(18, 106, 121, .32);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
  background: transparent;
  text-align: left;
  padding: 22px 26px;
}

.faq-q .faq-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
}

.faq-q .faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  position: relative;
  flex: 0 0 auto;
  transition: var(--transition);
}

.faq-q .faq-icon::before,
.faq-q .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--brand);
  border-radius: 3px;
}

.faq-q .faq-icon::before {
  width: 12px;
  height: 2px;
  left: 8px;
  top: 13px;
}

.faq-q .faq-icon::after {
  width: 2px;
  height: 12px;
  left: 13px;
  top: 8px;
  transition: transform .25s ease;
}

.faq-item.open .faq-icon::after {
  transform: scaleY(0);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  padding: 0 26px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
  border-top: 0;
}

.faq-item.open .faq-a {
  max-height: 280px;
  padding-bottom: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(220, 231, 233, .5);
}

/* ============ CTA / 联系 ============ */
.cta-section {
  padding: 90px 0;
  background: var(--bg-alt);
}

.cta-panel {
  background: var(--brand-deep);
  border-radius: 28px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  color: #fff;
  box-shadow: 0 28px 60px rgba(11, 72, 84, .2);
}

.cta-panel-left {
  padding: 58px 54px 54px;
}

.cta-panel-left h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.5px;
  color: #fff;
  margin-bottom: 16px;
}

.cta-panel-left p {
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .84);
  margin-bottom: 26px;
}

.cta-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 14px;
  color: rgba(255, 255, 255, .86);
}

.cta-meta span {
  display: flex;
  align-items: center;
  gap: 7px;
}

.cta-meta i {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .14);
  display: inline-grid;
  place-items: center;
  font-size: 12px;
}

.contact-card {
  margin: 26px 26px 26px 0;
  background: #fff;
  border-radius: 20px;
  padding: 30px 30px 28px;
  color: var(--ink);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .14);
}

.form-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-sub {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 22px;
}

.form-row {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
}

textarea.form-control {
  height: 92px;
  padding: 12px 14px;
  resize: vertical;
}

.form-control:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(18, 106, 121, .14);
}

.form-control::placeholder {
  color: #9AAAB0;
}

.form-submit {
  width: 100%;
  height: 50px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 10px 24px rgba(233, 116, 51, .3);
  transition: var(--transition);
}

.form-submit:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
}

.form-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.form-success {
  text-align: center;
  padding: 36px 10px 20px;
}

.form-success i {
  font-size: 40px;
  color: var(--success);
  margin-bottom: 10px;
  display: inline-block;
}

.form-success p {
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
}

.form-success small {
  color: var(--muted);
  font-size: 14px;
}

/* ============ Footer ============ */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr .9fr .9fr 1.3fr;
  gap: 36px;
  margin-bottom: 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
}

.footer-brand .brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.footer-desc {
  font-size: 14px;
  color: var(--muted);
  margin-top: 14px;
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--ink);
  letter-spacing: .5px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--muted);
  padding: 4px 0;
}

.footer-col a:hover {
  color: var(--brand);
  padding-left: 4px;
  transition: padding-left .2s ease;
}

.footer-col p {
  font-size: 14px;
  color: var(--muted);
  margin: 6px 0;
}

.footer-col i {
  color: var(--brand);
  width: 20px;
}

.footer-copy {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}

/* ============ 响应式 ============ */
@media screen and (max-width: 1024px) {
  .system-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-track {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 32px;
  }

  .process-track::before {
    display: none;
  }

  .case-row {
    grid-template-columns: 1fr;
  }

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-card img {
    height: 200px;
  }

  .case-grid-simple {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cta-panel {
    grid-template-columns: 1fr;
  }

  .contact-card {
    margin: 0 26px 30px;
  }

  .split-panel {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media screen and (max-width: 768px) {
  .section {
    padding: 68px 0;
  }

  .nav-cta {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 40px rgba(11, 72, 84, .08);
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 18px 24px 24px;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-link {
    display: block;
    width: 100%;
    font-size: 22px;
    font-weight: 700;
    padding: 14px 8px;
    border-radius: 12px;
  }

  .nav-link.active {
    background: rgba(18, 106, 121, .08);
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .category-hero {
    padding: 60px 0 56px;
  }

  .category-hero h1 {
    font-size: 40px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-actions .cta-btn {
    flex: 1 1 46%;
  }

  .case-grid-simple {
    grid-template-columns: 1fr;
  }

  .cta-panel-left {
    padding: 38px 28px;
  }

  .cta-meta {
    flex-direction: column;
    gap: 4px;
  }

  .contact-card {
    padding: 24px 18px;
  }

  .system-grid,
  .process-track {
    grid-template-columns: 1fr;
  }

  .scenario-wrap {
    padding: 24px;
  }
}

@media screen and (max-width: 520px) {
  .header-inner {
    gap: 10px;
  }

  .brand-text {
    font-size: 17px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .nav-cta {
    display: none;
  }

  .category-hero {
    padding: 48px 0 44px;
  }

  .category-hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 17px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-tags {
    flex-direction: column;
  }

  .hero-actions .cta-btn {
    width: 100%;
    flex: 1 1 100%;
  }

  .visual-card img {
    height: 250px;
  }

  .visual-note {
    position: static;
    border-radius: 0 0 22px 22px;
  }

  .cta-panel-left {
    padding: 32px 22px;
  }

  .contact-card {
    margin: 0 14px 14px;
    padding: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-col {
    border-top: 1px solid var(--line);
    padding-top: 18px;
  }

  .footer-col:first-child {
    border-top: none;
    padding-top: 0;
  }
}

/* roulang page: category2 */
:root {
  --brand: #126A79;
  --brand-deep: #0B4854;
  --accent: #E97433;
  --accent-soft: #FBEFE6;
  --surface: #FFFFFF;
  --bg-alt: #F3F8F9;
  --line: #DCE7E9;
  --ink: #1C2E33;
  --muted: #60787E;
  --success: #2F7D5B;
  --radius-card: 18px;
  --radius-btn: 10px;
  --radius-big: 24px;
  --shadow-card: 0 2px 4px rgba(11, 72, 84, .03), 0 16px 32px rgba(11, 72, 84, .07);
  --shadow-card-hover: 0 4px 12px rgba(11, 72, 84, .06), 0 24px 42px rgba(11, 72, 84, .12);
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-en: "DIN Alternate", "Barlow", "Arial", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-cn);
  background: var(--surface);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: 100%; box-shadow: none; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

.site-container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.section-caption {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-caption::before {
  content: "";
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 99px;
}
.block-center { text-align: center; }
.block-center .section-caption { justify-content: center; }
.block-center .section-caption::before { display: block; }

.section-title {
  font-size: clamp(32px, 3.4vw, 42px);
  line-height: 1.24;
  font-weight: 800;
  margin-bottom: 20px;
}
.section-sub {
  color: var(--muted);
  max-width: 720px;
  font-size: 17px;
  line-height: 1.85;
}
.block-center .section-sub { margin-inline: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  transition: background .25s, border-color .25s, transform .25s, box-shadow .25s, color .25s;
  border: 2px solid transparent;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #d86a2b; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(233, 116, 51, .25); color: #fff; }
.btn-outline { border-color: var(--brand); color: var(--brand); background: transparent; }
.btn-outline:hover { background: #e9f2f3; color: var(--brand-deep); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--brand-deep); }
.btn-light:hover { background: var(--accent-soft); color: var(--brand-deep); box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .93);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 800;
  white-space: nowrap;
}
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--brand), var(--brand-deep));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  flex: none;
}
.brand-text b {
  display: inline-block;
  margin-left: 6px;
  padding: 0 6px;
  font-size: 13px;
  font-weight: 800;
  color: var(--brand);
  border: 1px solid var(--line);
  border-radius: 6px;
  transform: translateY(-2px);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  position: relative;
  padding: 8px 13px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  transition: background .2s, color .2s;
}
.nav-link:hover { color: var(--brand); background: #edf5f6; }
.nav-link.active { color: var(--ink); background: #edf5f6; }
.nav-link.active::after {
  content: "";
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin: 5px auto 0;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  transition: background .25s, box-shadow .25s, transform .25s;
  box-shadow: 0 6px 18px rgba(233, 116, 51, .26);
}
.nav-cta:hover { background: #d86a2b; color: #fff; transform: translateY(-1px); box-shadow: 0 10px 24px rgba(233, 116, 51, .32); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 99px;
  background: var(--ink);
  margin: 5px auto;
  transition: transform .3s, opacity .3s;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Camp Hero */
.camp-hero {
  padding: 110px 0 80px;
  background:
    linear-gradient(100deg, rgba(255,255,255,.97) 0%, rgba(255,255,255,.86) 38%, rgba(255,255,255,.40) 78%, rgba(255,255,255,.12) 100%),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.camp-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(233,116,51,.12) 0%, transparent 70%);
  pointer-events: none;
}
.camp-hero .site-container { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 24px;
}
.hero-eyebrow i { font-size: 12px; }
.camp-hero h1 {
  font-size: clamp(42px, 5.6vw, 68px);
  font-weight: 800;
  line-height: 1.12;
  color: var(--ink);
  letter-spacing: -1px;
  margin-bottom: 22px;
}
.camp-hero .hero-desc {
  font-size: 18px;
  line-height: 1.9;
  color: #41595f;
  max-width: 650px;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}
.hero-facts {
  margin-top: 58px;
  padding-top: 24px;
  border-top: 1px solid rgba(220, 231, 233, .72);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}
.hero-fact { display: flex; align-items: flex-start; gap: 12px; }
.hero-fact strong {
  display: block;
  font-size: clamp(18px, 2vw, 24px);
  color: var(--brand);
  line-height: 1.2;
}
.hero-fact span { font-size: 14px; color: var(--muted); }
.hero-fact i {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 12px;
  background: rgba(18, 106, 121, .08);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* Feature split */
.feature-grid { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
.feature-grid > .cell { flex: 1 1 0; min-width: 280px; }
.feature-content { padding-right: 12px; }
.feature-list { margin-top: 28px; }
.feature-list li {
  display: flex;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.feature-list li:last-child { border-bottom: 0; }
.feature-icon {
  width: 48px;
  height: 48px;
  flex: none;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.feature-list h3 { font-size: 18px; color: var(--ink); margin-bottom: 4px; }
.feature-list p { color: var(--muted); font-size: 15px; }
.feature-media { position: relative; }
.media-frame {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-alt);
  box-shadow: var(--shadow-card);
}
.media-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.media-frame:hover img { transform: scale(1.03); }
.float-note {
  position: absolute;
  left: -18px;
  bottom: 34px;
  width: min(300px, 82%);
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: var(--shadow-card);
  font-size: 14px;
  color: var(--muted);
}
.float-note strong { color: var(--ink); display: block; margin-bottom: 2px; }

/* Roadmap */
.roadmap-wrap { margin-top: 46px; }
.roadmap {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}
.road-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px 26px;
  box-shadow: var(--shadow-card);
  transition: transform .25s, box-shadow .25s;
  position: relative;
}
.road-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-card-hover); }
.road-index {
  font-family: var(--font-en);
  font-size: 42px;
  line-height: 1;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px var(--brand);
  margin-bottom: 18px;
}
.road-item h3 { font-size: 19px; margin-bottom: 8px; color: var(--ink); }
.road-item p { color: var(--muted); font-size: 14.5px; }
.road-point {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}
@media (max-width: 1024px) {
  .roadmap { grid-template-columns: repeat(2, 1fr); }
}

/* Course / camp types */
.course-grid { margin-top: 48px; }
.course-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 34px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .25s, box-shadow .25s;
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.course-card--dark {
  background: linear-gradient(140deg, var(--brand-deep) 0%, var(--brand) 85%);
  border-color: transparent;
  color: #fff;
}
.course-card--dark h3 { color: #fff; }
.course-card--dark p, .course-card--dark li { color: rgba(255,255,255,.84); }
.course-card--soft { background: var(--accent-soft); border-color: #f6dfd1; }
.course-card--soft h3 { color: var(--ink); }
.course-card--soft p { color: #6d5a50; }
.course-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border-radius: 99px;
  padding: 5px 13px;
  font-size: 12px;
  font-weight: 800;
  color: var(--brand);
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.course-card--dark .course-tag { background: rgba(255,255,255,.12); color: #fff; }
.course-card--soft .course-tag { background: rgba(255,255,255,.55); color: var(--accent); }
.course-card h3 { font-size: 24px; line-height: 1.35; margin-bottom: 12px; }
.course-card p { color: var(--muted); font-size: 15px; line-height: 1.8; }
.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}
.course-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(18,106,121,.08);
  color: var(--brand);
  padding: 6px 12px;
  border-radius: 99px;
}
.course-card--dark .course-meta span { background: rgba(255,255,255,.14); color: #fff; }
.course-card--soft .course-meta span { background: rgba(255,255,255,.5); color: #6d5a50; }
.course-card--small { padding: 25px; }
.course-card--small h3 { font-size: 20px; }
.course-card--small p { font-size: 14px; }
.course-card--wide { grid-column: 1 / -1; display: flex; gap: 34px; align-items: center; }
.course-card--wide .wide-content { flex: 1.4; }
.course-card--wide .wide-note {
  flex: 1;
  background: var(--bg-alt);
  border-radius: 16px;
  padding: 22px 24px;
  color: var(--muted);
  font-size: 14.5px;
  border-left: 3px solid var(--accent);
}
.course-layout-row { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .95fr); gap: 24px; margin-top: 48px; }
.course-stack { display: grid; gap: 24px; }
@media (max-width: 900px) {
  .course-layout-row { grid-template-columns: 1fr; }
}

/* Case records */
.case-list { margin-top: 52px; display: grid; gap: 30px; }
.case-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-big);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.case-item:nth-child(even) { direction: rtl; }
.case-item:nth-child(even) > div { direction: ltr; }
.case-photo { position: relative; min-height: 240px; }
.case-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.case-rank {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(11, 72, 84, .8);
  color: #fff;
  border-radius: 7px;
  padding: 4px 10px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: .08em;
}
.case-body { padding: 31px 34px; }
.case-body h3 { font-size: 19px; color: var(--ink); margin-bottom: 8px; }
.case-body .case-desc { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.case-labels { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.case-labels span {
  background: var(--bg-alt);
  color: var(--brand);
  border-radius: 99px;
  padding: 5px 12px;
  font-size: 12.5px;
  font-weight: 700;
}
@media (max-width: 840px) {
  .case-item, .case-item:nth-child(even) { grid-template-columns: 1fr; direction: ltr; }
  .case-item:nth-child(even) > div { direction: ltr; }
  .case-photo { min-height: 190px; }
}

/* FAQ */
.faq-list {
  max-width: 860px;
  margin: 44px auto 0;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  margin-bottom: 12px;
  transition: box-shadow .25s, border-color .25s;
  overflow: hidden;
}
.faq-item.open { border-color: rgba(18,106,121,.4); box-shadow: var(--shadow-card); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 22px 26px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  line-height: 1.6;
}
.faq-q .faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  flex: none;
  transition: background .25s, box-shadow .25s;
}
.faq-item.open .faq-dot {
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}
.faq-q .faq-arrow {
  margin-left: auto;
  color: var(--brand);
  font-size: 18px;
  flex: none;
  transition: transform .3s;
}
.faq-item.open .faq-arrow { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner {
  padding: 0 26px 24px 50px;
  color: var(--muted);
  font-size: 15px;
}

/* CTA / contact */
.contact-panel {
  position: relative;
  border-radius: 28px;
  background:
    radial-gradient(circle at 85% 15%, rgba(255,255,255,.08) 0%, transparent 34%),
    linear-gradient(145deg, var(--brand-deep), #0d4d59);
  color: #fff;
  padding: 60px 54px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(11, 72, 84, .18);
}
.contact-panel::before {
  content: "";
  position: absolute;
  left: -70px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  border: 2px solid rgba(255,255,255,.08);
  border-radius: 50%;
}
.contact-panel::after {
  content: "";
  position: absolute;
  left: 20px;
  bottom: -70px;
  width: 180px;
  height: 180px;
  border: 30px solid rgba(255,255,255,.04);
  border-radius: 50%;
}
.contact-inner { position: relative; z-index: 2; }
.contact-inner h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.35; margin-bottom: 14px; }
.contact-inner > p { color: rgba(255,255,255,.82); max-width: 560px; }
.contact-row { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; margin-top: 34px; }
.contact-lead { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 28px; }
.lead-block { background: rgba(255,255,255,.08); padding: 18px 20px; border-radius: 14px; min-width: 190px; }
.lead-block i { color: var(--accent); margin-right: 10px; }
.lead-block strong { display: block; margin-top: 6px; font-size: 18px; }
.lead-block span { font-size: 13.5px; color: rgba(255,255,255,.72); }
.form-holder {
  background: #fff;
  color: var(--ink);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 24px 52px rgba(0,0,0,.22);
}
.form-title { font-size: 21px; font-weight: 800; margin-bottom: 6px; }
.form-tip { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 700; color: var(--ink); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  display: block;
  width: 100%;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 0 14px;
  background: #fff;
  color: var(--ink);
  font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
}
.form-group textarea { height: auto; min-height: 90px; padding: 12px 14px; resize: vertical; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(18,106,121,.12);
}
.secure-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.secure-note i { color: var(--success); }
@media (max-width: 920px) {
  .contact-panel { padding: 40px 24px; }
  .contact-row { grid-template-columns: 1fr; gap: 30px; }
  .contact-panel::before, .contact-panel::after { display: none; }
}

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 72px 0 34px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2.1fr 1fr 1.2fr 1.5fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.footer-brand { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 800; color: var(--ink); margin-bottom: 14px; }
.footer-brand .brand-mark { width: 38px; height: 38px; border-radius: 11px; font-size: 17px; }
.footer-desc { color: var(--muted); font-size: 14.5px; line-height: 1.9; max-width: 360px; }
.footer-col h4 { font-size: 16px; margin-bottom: 18px; color: var(--ink); font-weight: 800; }
.footer-col a {
  display: block;
  color: var(--muted);
  font-size: 14px;
  padding: 6px 0;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover { color: var(--brand); padding-left: 5px; }
.footer-col p { color: var(--muted); font-size: 14px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.footer-col p i { color: var(--brand); width: 17px; text-align: center; }
.footer-copy {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding-top: 28px;
}
@media (max-width: 1040px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 38px; }
}
@media (max-width: 620px) {
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

/* Focus accessibility / common */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(18,106,121,.25);
  outline-offset: 2px;
}
::selection { background: var(--brand-deep); color: #fff; }

/* Responsive */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .camp-hero { padding: 84px 0 60px; }
  .hero-facts { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 84vw);
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 92px 28px 38px;
    border-left: 1px solid var(--line);
    box-shadow: -20px 0 60px rgba(11,72,84,.1);
    transition: right .35s ease;
    z-index: 120;
  }
  body.nav-open .main-nav { right: 0; }
  .nav-link {
    font-size: 20px;
    padding: 15px 16px;
    color: var(--ink);
    background: #fff;
  }
  .nav-link:hover, .nav-link.active { background: #edf5f6; }
  .nav-link.active::after { margin-left: 0; }
  .nav-toggle { display: inline-flex; flex-direction: column; justify-content: center; }
  .nav-cta { display: none; }
  .header-inner { min-height: 68px; }
}
@media (max-width: 640px) {
  .section { padding: 48px 0; }
  .site-container { padding-inline: 18px; }
  .camp-hero h1 { font-size: 40px; }
  .camp-hero .hero-desc { font-size: 16px; }
  .hero-facts { grid-template-columns: 1fr 1fr; gap: 16px; }
  .float-note { left: 12px; }
  .course-card { padding: 28px 24px; }
  .course-card--wide { flex-direction: column; }
  .case-body { padding: 24px; }
  .contact-panel { padding: 32px 20px; border-radius: 20px; }
  .form-holder { padding: 22px 20px; }
  .faq-q { padding: 18px 16px; }
  .faq-a-inner { padding: 0 18px 20px 24px; }
  .btn { width: 100%; }
}

/* roulang page: category3 */
:root {
  --brand: #126A79;
  --brand-deep: #0B4854;
  --accent: #E97433;
  --accent-soft: #FBEFE6;
  --surface: #FFFFFF;
  --bg-alt: #F3F8F9;
  --line: #DCE7E9;
  --ink: #1C2E33;
  --muted: #60787E;
  --success: #2F7D5B;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow-1: 0 2px 4px rgba(11, 72, 84, .03), 0 16px 32px rgba(11, 72, 84, .07);
  --shadow-2: 0 8px 16px rgba(11, 72, 84, .08), 0 24px 48px rgba(11, 72, 84, .12);
  --ease: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font: 16px/1.75 "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 3px solid rgba(233, 116, 51, .45);
  outline-offset: 3px;
  border-radius: 6px;
}
.site-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  min-height: 72px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  flex: 0 0 auto;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--brand);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .02em;
}
.brand-text b { color: var(--brand); font-weight: 800; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  transition: var(--ease);
}
.nav-link:hover { color: var(--brand); background: #EDF6F7; }
.nav-link.active { color: var(--brand-deep); }
.nav-link.active::after {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  transition: var(--ease);
  white-space: nowrap;
}
.nav-cta:hover { background: #D86A2B; color: #fff; }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 10px;
  border-radius: 10px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 24px;
  background: var(--ink);
  border-radius: 2px;
  margin: 5px auto;
  transition: var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border: 2px solid transparent;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--ease);
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #D86A2B; color: #fff; transform: translateY(-2px); box-shadow: 0 12px 24px rgba(233, 116, 51, .28); }
.btn-outline { border-color: var(--brand); color: var(--brand); background: transparent; }
.btn-outline:hover { background: #EDF6F7; color: var(--brand-deep); transform: translateY(-2px); }
.btn-white { border-color: rgba(255, 255, 255, .85); color: #fff; background: transparent; }
.btn-white:hover { background: rgba(255, 255, 255, .12); color: #fff; transform: translateY(-2px); }
.btn-lg { min-height: 54px; padding: 0 30px; }

/* Section */
.section-block { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 820px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.28;
  font-weight: 800;
  color: var(--ink);
  margin: 0 0 14px;
}
.section-head h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 26px;
  background: var(--brand);
  border-radius: 4px;
  margin-right: 14px;
  vertical-align: -4px;
}
.section-head > p { color: var(--muted); font-size: 17px; max-width: 720px; }
.section-head.center h2::before { display: none; }

/* Category hero */
.cat-hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(255, 255, 255, .98) 20%, rgba(255, 255, 255, .82) 53%, rgba(11, 72, 84, .22)),
    url('/assets/images/backpic/back-2.png') center / cover;
  border-bottom: 1px solid var(--line);
  padding: 72px 0 64px;
}
.cat-hero .page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--accent);
  font-size: 14px;
}
.cat-hero h1 {
  font-size: clamp(42px, 5vw, 56px);
  line-height: 1.12;
  font-weight: 800;
  color: var(--brand-deep);
  margin: 12px 0 16px;
}
.cat-hero .hero-lead {
  color: var(--ink);
  font-size: 17px;
  max-width: 620px;
  opacity: .9;
}
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-note {
  background: rgba(255, 255, 255, .9);
  border: 1px solid rgba(255, 255, 255, .8);
  box-shadow: var(--shadow-1);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  backdrop-filter: blur(6px);
}
.hero-note h3 { font-size: 18px; color: var(--brand-deep); margin-bottom: 14px; }
.hero-note li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--ink);
  font-weight: 500;
}
.hero-note li:last-child { border-bottom: 0; }
.hero-note li i { color: var(--accent); margin-top: 5px; font-size: 14px; }

/* Split solution */
.split-card {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 40px;
  align-items: center;
}
.split-copy h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  color: var(--ink);
}
.split-copy > p, .split-copy .lead { color: var(--muted); font-size: 16px; margin-bottom: 18px; max-width: 600px; }
.point-list { margin-top: 22px; }
.point-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.point-list li:last-child { border-bottom: 0; }
.point-ico {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  color: var(--brand);
  font-weight: 800;
  font-size: 17px;
}
.point-list strong { display: block; font-weight: 700; color: var(--ink); margin-bottom: 3px; }
.point-list p { color: var(--muted); font-size: 15px; }
.visual-wrap {
  position: relative;
}
.visual-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}
.visual-wrap figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  background: rgba(255, 255, 255, .92);
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--brand-deep);
  font-weight: 600;
  box-shadow: var(--shadow-1);
}

/* Service cards */
.service-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: var(--ease);
  height: 100%;
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); border-color: rgba(18, 106, 121, .28); }
.service-card--feature { display: grid; grid-template-columns: .95fr 1.05fr; }
.service-card--plain { padding: 34px 30px; border-top: 4px solid var(--brand); }
.service-card--horizontal { display: grid; grid-template-columns: .8fr 1.2fr; }
.card-media { position: relative; min-height: 240px; overflow: hidden; }
.card-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 28px 30px; display: flex; flex-direction: column; }
.card-tag {
  display: inline-flex;
  align-self: flex-start;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.card-body h3 { font-size: 22px; font-weight: 800; color: var(--ink); margin-bottom: 10px; }
.card-body p { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand);
  font-weight: 600;
  font-size: 15px;
  margin-top: auto;
  transition: var(--ease);
}
.card-link:hover { color: var(--accent); gap: 12px; }
.card-solid-icon {
  width: 52px;
  height: 52px;
  background: var(--bg-alt);
  color: var(--brand);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

/* Process */
.process-section .section-head { margin-bottom: 36px; }
.process-panel {
  background:
    radial-gradient(circle at 10% 0%, rgba(233, 116, 51, .22), transparent 40%),
    var(--brand-deep);
  border-radius: 28px;
  padding: 60px 48px;
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.flow-step {
  color: rgba(255, 255, 255, .88);
  border: 1px solid rgba(255, 255, 255, .1);
  background: rgba(255, 255, 255, .04);
  border-radius: 18px;
  padding: 26px 22px;
}
.flow-num {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 18px;
}
.flow-step h3 { color: #fff; font-size: 19px; margin-bottom: 8px; }
.flow-step p { color: rgba(255, 255, 255, .72); font-size: 14px; margin: 0; }

/* Responsibility */
.duty-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px;
  height: 100%;
  box-shadow: var(--shadow-1);
}
.duty-card--service { background: var(--accent-soft); border-color: transparent; }
.duty-card--client { background: var(--surface); }
.duty-card h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 18px;
}
.duty-card h3 i { color: var(--accent); font-size: 20px; }
.duty-card li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  font-weight: 500;
  color: var(--ink);
}
.duty-card li:last-child { border-bottom: 0; }
.duty-card li i { color: var(--success); margin-top: 6px; font-size: 13px; }

/* FAQ */
.faq-wrap { max-width: 900px; margin: 0 auto; }
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 2px 6px rgba(11, 72, 84, .03);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--ease);
}
.accordion-item.open { border-color: rgba(18, 106, 121, .45); box-shadow: var(--shadow-1); }
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: transparent;
  border: 0;
  padding: 20px 24px;
  text-align: left;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}
.accordion-item.open .accordion-trigger { color: var(--brand); }
.acc-icon {
  position: relative;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border: 2px solid var(--brand);
  border-radius: 50%;
  transition: var(--ease);
}
.acc-icon::before, .acc-icon::after {
  content: "";
  position: absolute;
  background: var(--brand);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.acc-icon::before { width: 10px; height: 2px; }
.acc-icon::after { width: 2px; height: 10px; }
.accordion-item.open .acc-icon { transform: rotate(45deg); border-color: var(--accent); }
.accordion-item.open .acc-icon::before, .accordion-item.open .acc-icon::after { background: var(--accent); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.accordion-item.open .accordion-content { max-height: 460px; }
.accordion-content-inner { padding: 0 24px 22px; color: var(--muted); font-size: 15px; }

/* CTA */
.cta-panel {
  position: relative;
  background:
    radial-gradient(circle at 90% 10%, rgba(233, 116, 51, .32), transparent 44%),
    var(--brand-deep);
  border-radius: 30px;
  overflow: hidden;
  padding: 64px 56px;
}
.cta-panel h2 {
  color: #fff;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.3;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}
.cta-panel .cta-lead {
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
  max-width: 560px;
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; position: relative; z-index: 2; }
.cta-safe-line {
  margin-top: 14px;
  color: rgba(255, 255, 255, .62);
  font-size: 13px;
  position: relative;
  z-index: 2;
}
.cta-transparent-note {
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 22px;
  padding: 28px 30px;
  color: #fff;
  position: relative;
  z-index: 2;
}
.cta-transparent-note li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .85);
  font-size: 15px;
}
.cta-transparent-note li:last-child { border-bottom: 0; }
.cta-transparent-note li i { color: var(--accent); margin-top: 5px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding: 68px 0 26px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.5fr;
  gap: 46px;
  margin-bottom: 44px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--ink); }
.footer-brand .brand-mark { width: 42px; height: 42px; font-size: 18px; }
.footer-desc { color: var(--muted); max-width: 300px; margin-top: 16px; font-size: 14px; }
.footer-col h4 { font-size: 15px; color: var(--ink); margin-bottom: 16px; font-weight: 700; }
.footer-col a, .footer-col p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 14px;
  transition: var(--ease);
}
.footer-col a:hover { color: var(--brand); padding-left: 4px; }
.footer-copy {
  border-top: 1px solid var(--line);
  padding-top: 22px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

@media (max-width: 1023px) {
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    gap: 6px;
    background: #fff;
    padding: 24px 24px 32px;
    box-shadow: var(--shadow-2);
    border-radius: 0 0 20px 20px;
  }
  .main-nav.nav-open { display: flex; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .nav-link { width: 100%; min-height: 48px; font-size: 20px; }
  .nav-link.active::after { display: none; }
  .nav-link.active { background: var(--bg-alt); color: var(--brand-deep); }
  .section-block { padding: 72px 0; }
  .split-card { grid-template-columns: 1fr; gap: 32px; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-brand-wrap { grid-column: 1 / -1; }
  .service-card--feature, .service-card--horizontal { grid-template-columns: 1fr; }
  .card-media { min-height: 220px; }
  .cta-panel { padding: 46px 34px; }
}

@media (max-width: 640px) {
  .section-block { padding: 48px 0; }
  .site-container { padding: 0 18px; }
  body { font-size: 15px; }
  .cat-hero { padding: 44px 0 40px; }
  .cat-hero .hero-lead { font-size: 15px; }
  .hero-cta-row .btn { width: 100%; }
  .section-head { margin-bottom: 30px; }
  .section-head h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-col a { min-height: 40px; }
  .process-panel { padding: 30px 22px; border-radius: 22px; }
  .flow-steps { grid-template-columns: 1fr; gap: 14px; }
  .cta-panel { padding: 34px 22px; border-radius: 22px; }
  .cta-actions .btn { width: 100%; }
  .split-copy h2 { font-size: 25px; }
  .visual-wrap img { height: 260px; }
  .duty-card { padding: 26px 22px; }
  .accordion-trigger { font-size: 15px; padding: 16px 18px; }
}