/* roulang page: index */
:root{
  --bg:#f2f6fa;
  --surface:#ffffff;
  --primary:#1f5878;
  --primary-deep:#123648;
  --primary-bright:#2a7396;
  --accent:#e39745;
  --accent-dark:#c67e30;
  --green:#3a9b82;
  --border:#dde7f0;
  --border-light:#edf2f7;
  --text:#1b3649;
  --text-2:#4c6576;
  --text-3:#8197a6;
  --radius-lg:18px;
  --radius-md:11px;
  --radius-sm:7px;
  --shadow:0 10px 28px rgba(23,57,82,.06);
  --shadow-hover:0 20px 44px rgba(23,57,82,.13);
  --shadow-soft:0 6px 18px rgba(23,57,82,.04);
  --space:104px;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-main);
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol,dl,dd,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input,select,textarea{
  font-family:inherit;
  font-size:1rem;
  color:var(--text);
}
button{cursor:pointer;border:none;background:none;}
::-moz-selection{background:rgba(228,156,74,.22);}
::selection{background:rgba(228,156,74,.22);}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:88px 0;}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center;}
.section-head h2{
  font-size:clamp(28px,3vw,34px);
  font-weight:800;
  line-height:1.3;
  color:var(--primary-deep);
  letter-spacing:.5px;
}
.section-head p{
  margin-top:14px;
  color:var(--text-2);
  font-size:17px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--radius-md);
  font-weight:700;
  font-size:16px;
  line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  outline:none;
  box-shadow:0 8px 18px rgba(0,0,0,.06);
}
.btn:focus-visible{outline:3px solid rgba(228,156,74,.4);outline-offset:3px;}
.btn-primary{
  background:var(--accent);
  color:#1f2b33;
  border:1px solid var(--accent);
}
.btn-primary:hover{
  background:var(--accent-dark);
  border-color:var(--accent-dark);
  transform:translateY(-2px);
  box-shadow:0 14px 26px rgba(207,141,62,.24);
}
.btn-line{
  background:#fff;
  color:var(--primary-deep);
  border:1px solid #bdcbd6;
}
.btn-line:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
  box-shadow:var(--shadow-soft);
}
.btn-sm{min-height:42px;padding:0 16px;font-size:14px;box-shadow:none;}
.text-link{
  color:var(--primary);
  font-weight:600;
  border-bottom:1px solid rgba(31,88,120,.3);
  transition:border-color .2s;
}
.text-link:hover{border-color:var(--primary);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:5px;
  background:#eef4f8;
  color:var(--primary);
  border-radius:999px;
  padding:3px 12px;
  font-size:13px;
  font-weight:600;
  line-height:1.6;
  white-space:nowrap;
}
.badge-dot{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--text-2);
  font-size:14px;
}
.badge-dot i{
  width:8px;height:8px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 4px rgba(58,155,130,.15);
}
/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(245,248,251,.92);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(205,217,228,.7);
  transition:box-shadow .2s;
}
.site-header.is-scrolled{box-shadow:0 8px 30px rgba(19,48,68,.06);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:11px;
  background:linear-gradient(145deg,var(--primary),var(--primary-deep));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  box-shadow:0 8px 18px rgba(18,54,72,.2);
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-name{
  font-size:20px;
  font-weight:800;
  color:var(--primary-deep);
  letter-spacing:.4px;
  line-height:1.3;
  white-space:nowrap;
}
.brand-name b{color:var(--accent);font-weight:800;}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:14px;}
.nav-link{
  position:relative;
  color:var(--text-2);
  font-size:15.5px;
  font-weight:600;
  padding:22px 0 18px;
  transition:color .2s;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:100%;
  bottom:-1px;
  height:3px;
  border-radius:99px;
  background:var(--accent);
  transition:right .22s ease;
}
.nav-link:hover{color:var(--primary-deep);}
.nav-link:hover::after{right:0;}
.nav-link.active{color:var(--primary-deep);}
.nav-link.active::after{right:0;}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0;}
.ribbon-status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:#fff;
  border:1px solid var(--border);
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--primary-deep);
  font-weight:600;
  box-shadow:var(--shadow-soft);
}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;background:#fff;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.hamburger span{display:block;width:19px;height:2px;border-radius:2px;background:var(--primary-deep);transition:.25s;}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#e7eef5 0%,#f3f7fa 100%);
}
.hero-bg{
  position:absolute;
  inset:0;
  opacity:.18;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center 20%;
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:128px 0 96px;
  max-width:980px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom:28px;
  padding:7px 16px 7px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.8);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--shadow-soft);
  font-size:14px;
  color:var(--text-2);
  font-weight:600;
}
.hero-eyebrow i{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(58,155,130,.14);}
hero h1{font-size:46px;line-height:1.27;font-weight:900;color:#0e2b3c;letter-spacing:1px;}
.hero h1{font-size:clamp(34px,5vw,48px);line-height:1.26;font-weight:900;color:#0e2b3c;letter-spacing:.5px;}
.hero-sub{
  margin-top:20px;
  font-size:clamp(17px,2vw,19px);
  line-height:1.9;
  color:#405d70;
  max-width:760px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.hero-meta{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  color:var(--text-3);
  font-size:14px;
}
.hero-notes{
  margin-top:52px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.hero-note{
  background:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.85);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  padding:18px 18px;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
}
.hero-note strong{
  display:block;
  color:var(--primary-deep);
  font-size:15px;
  margin-bottom:4px;
}
.hero-note p{color:var(--text-2);font-size:13.5px;line-height:1.65;}
/* Quick band */
.quick-band{padding:34px 0;border-bottom:1px solid var(--border-light);}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.quick-item{display:flex;gap:15px;align-items:flex-start;}
.quick-ico{
  width:46px;height:46px;flex:0 0 46px;border-radius:12px;
  background:linear-gradient(145deg,#dcebf4,#ffffff);
  border:1px solid #d9e7f1;
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.quick-item h3{font-size:16px;font-weight:800;color:var(--primary-deep);line-height:1.4;}
.quick-item p{font-size:14px;color:var(--text-2);margin-top:5px;line-height:1.7;}
/* Channel intro */
.channel-section{background:#fff;}
.channels-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.channel-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.channel-card .pic{
  aspect-ratio:16/9;
  overflow:hidden;
  background:#e5ebf0;
}
.channel-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .35s;}
.channel-card:hover .pic img{transform:scale(1.04);}
.channel-body{flex:1;display:flex;flex-direction:column;padding:24px 26px 28px;}
.channel-body h3{font-size:21px;font-weight:800;color:var(--primary-deep);margin-top:12px;}
.channel-body p{color:var(--text-2);line-height:1.75;margin-top:8px;font-size:15px;}
.channel-link{
  margin-top:auto;
  padding-top:20px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-weight:700;
  font-size:15px;
  transition:gap .2s,color .2s;
}
.channel-card:hover .channel-link{gap:12px;color:var(--accent-dark);}
/* Process */
.process-section{background:var(--bg);}
.steps-panel{
  max-width:920px;
  margin:0 auto;
  position:relative;
}
.steps-panel::before{
  content:"";
  position:absolute;
  left:43px;
  top:30px;
  bottom:30px;
  width:3px;
  border-radius:99px;
  background:linear-gradient(180deg,var(--primary),#cfe0ec,var(--accent));
  opacity:.25;
}
.step-item{
  position:relative;
  display:flex;
  gap:26px;
  align-items:flex-start;
  padding:26px 0;
}
.step-no{
  width:88px;
  flex:0 0 88px;
  height:88px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:26px;
  background:#fff;
  border:1px solid var(--border);
  color:var(--primary);
  font-weight:900;
  font-size:22px;
  box-shadow:var(--shadow-soft);
  z-index:1;
}
.step-item:nth-child(odd) .step-no{background:var(--primary);color:#fff;border-color:var(--primary);}
.step-copy{flex:1;padding-top:8px;}
.step-copy h3{font-size:20px;font-weight:800;color:var(--primary-deep);}
.step-copy p{color:var(--text-2);margin-top:6px;max-width:650px;font-size:15.5px;}
/* Application / scenes */
.scene-wrap{
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:40px;
  align-items:center;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:34px;
  box-shadow:var(--shadow);
}
.scene-media{border-radius:var(--radius-md);overflow:hidden;background:#e2e9ef;}
.scene-media img{width:100%;height:100%;aspect-ratio:4/4;object-fit:cover;}
.scene-content h2{font-size:27px;line-height:1.4;color:var(--primary-deep);font-weight:800;}
.scene-content .sec-note{color:var(--text-2);font-size:16px;margin-top:12px;}
.scene-list{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;}
.scene-list li{
  position:relative;
  padding:12px 16px 12px 42px;
  background:#f6f9fb;
  border:1px solid #edf2f5;
  border-radius:10px;
  color:var(--text);
  font-size:14.5px;
  line-height:1.7;
  font-weight:500;
}
.scene-list li::before{
  content:"✓";
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  width:18px;
  height:18px;
  background:var(--primary-bright);
  color:#fff;
  border-radius:5px;
  font-size:11px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
}
/* CMS news */
.news-section{background:#fff;}
.news-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:26px;align-items:stretch;}
.news-feature{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .25s,box-shadow .25s;
}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.news-feature a{display:flex;flex-direction:column;height:100%;}
.feature-img{position:relative;aspect-ratio:16/8.6;overflow:hidden;background:#e2e9ef;}
.feature-img img{width:100%;height:100%;object-fit:cover;}
.feature-img::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:40%;
  background:linear-gradient(transparent,rgba(18,45,64,.55));
}
.feature-tag{position:absolute;left:20px;bottom:16px;z-index:1;}
.feature-body{display:flex;flex-direction:column;padding:26px;}
.feature-body h3{font-size:23px;font-weight:800;line-height:1.4;color:var(--primary-deep);margin-top:6px;}
.feature-body p{color:var(--text-2);font-size:15px;line-height:1.8;margin-top:10px;}
.feature-foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:15px;color:var(--text-3);font-size:13px;}
.news-side{display:flex;flex-direction:column;gap:14px;}
.news-row{
  flex:1;
  display:flex;
  align-items:center;
  gap:18px;
  background:#f7fafc;
  border:1px solid #e7eef4;
  border-radius:15px;
  padding:19px 18px;
  transition:transform .2s,box-shadow .2s,background .2s;
}
.news-row:hover{transform:translateY(-3px);background:#fff;box-shadow:var(--shadow);}
.news-row-main{min-width:0;flex:1;}
.news-row-main h3{font-size:16px;font-weight:700;line-height:1.5;color:var(--primary-deep);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.news-row-main p{color:var(--text-2);font-size:13.5px;margin-top:7px;line-height:1.65;}
.news-row-meta{display:flex;align-items:center;gap:10px;margin-top:9px;}
.news-row time{color:var(--text-3);font-size:12.5px;}
.news-arrow{width:36px;height:36px;flex:0 0 36px;border-radius:50%;background:#fff;border:1px solid var(--border);color:var(--primary);display:flex;align-items:center;justify-content:center;transition:.2s;}
.news-row:hover .news-arrow{background:var(--primary);color:#fff;border-color:var(--primary);}
.news-empty{
  grid-column:1/-1;
  background:#f7fafc;
  border:1px dashed #d3e0e9;
  border-radius:var(--radius-lg);
  padding:50px 30px;
  text-align:center;
  color:var(--text-2);
  font-size:15px;
}
/* FAQ */
.faq-section{background:var(--bg);}
.faq-layout{max-width:820px;margin:0 auto;}
.accordion.faq-accordion{
  background:transparent;
  list-style:none;
  margin:0;
  padding:0;
}
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:15px;
  margin-bottom:15px;
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:box-shadow .2s;
}
.faq-accordion .accordion-item.is-active{box-shadow:var(--shadow);}
.faq-accordion .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--primary-deep);
  font-weight:700;
  font-size:16.5px;
  line-height:1.5;
  padding:21px 24px;
  background:#fff;
  transition:color .2s;
}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after{
  content:"";
  position:static;
  width:unset;
  height:unset;
  margin:0;
  background:transparent;
  box-shadow:none;
  transform:none;
}
.faq-toggle{
  width:30px;
  height:30px;
  flex:0 0 30px;
  border-radius:8px;
  background:#f0f5f9;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  position:relative;
  transition:.25s;
}
.faq-toggle::before,
.faq-toggle::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:transform .2s;
}
.faq-toggle::before{width:12px;height:2px;}
.faq-toggle::after{width:2px;height:12px;}
.accordion-item.is-active .faq-toggle{background:var(--accent);}
.accordion-item.is-active .faq-toggle::after{transform:scaleY(0);}
.accordion-item.is-active .accordion-title{color:var(--primary);}
.faq-content.accordion-content{
  background:#fbfcfe;
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
  border-top:1px solid #eef3f7;
}
.accordion-content .faq-content{padding:20px 24px;}
/* CTA */
.cta-section{
  background:
    linear-gradient(rgba(14,42,59,.76),rgba(14,42,59,.86)),
    url('/assets/images/backpic/back-2.webp') center/cover;
  color:#fff;
}
.cta-grid{display:grid;grid-template-columns:.94fr 1.06fr;gap:50px;align-items:center;}
.cta-title{
  font-size:clamp(27px,3.4vw,36px);
  font-weight:800;
  line-height:1.4;
  color:#fff;
}
.cta-copy{color:rgba(255,255,255,.86);font-size:16px;margin-top:24px;line-height:1.9;}
.cta-points{margin-top:28px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.9);font-size:15px;margin-top:12px;}
.cta-points li i{width:22px;height:22px;flex:0 0 22px;border-radius:50%;background:rgba(227,151,69,.85);color:#fff;font-size:13px;font-style:normal;display:flex;align-items:center;justify-content:center;font-weight:900;}
.lead-form{
  background:#fff;
  border-radius:22px;
  box-shadow:0 30px 70px rgba(0,0,0,.24);
  padding:34px 34px 28px;
}
.lead-form h3{
  font-size:22px;
  color:var(--primary-deep);
  margin-bottom:6px;
}
.lead-form .form-tip{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
  line-height:1.6;
}
.form-control{
  display:block;
  width:100%;
  height:48px;
  border:1px solid #c9d7e2;
  background:#fbfdff;
  border-radius:11px;
  padding:0 15px;
  font-size:15px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
select.form-control{appearance:auto;}
.form-control:focus{
  border-color:var(--primary-bright);
  box-shadow:0 0 0 4px rgba(42,115,150,.12);
  background:#fff;
}
textarea.form-control{height:auto;padding:12px 15px;resize:vertical;}
.form-label{display:block;font-size:13px;color:var(--text-2);font-weight:600;margin-bottom:7px;}
.form-field{margin-bottom:16px;}
.form-note{margin-top:14px;font-size:12.5px;color:var(--text-3);line-height:1.65;}
.submit-btn{
  width:100%;
  margin-top:8px;
}
/* Footer */
.site-footer{background:#102d3f;color:rgba(255,255,255,.72);}
.footer-top{padding:68px 0 56px;display:grid;grid-template-columns:1.25fr .7fr .8fr;gap:44px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-mark{background:#fff;color:var(--primary);}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s, padding-left .2s;display:inline-block;}
.footer-col ul a:hover{color:var(--accent);padding-left:5px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  font-size:13px;
  color:rgba(255,255,255,.45);
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
/* Media custom for h classes */
.section-head{margin-bottom:44px;}
/* Responsive */
@media (max-width:1100px){
  .main-nav{gap:16px;margin-left:6px;}
  .nav-link{font-size:14px;}
  .ribbon-status{display:none;}
  .header-inner{gap:14px;}
}
@media (max-width:900px){
  .section{padding:70px 0;}
  .header-tools .btn-sm{display:none;}
  .hamburger{display:flex;}
  .main-nav{
    position:absolute;
    top:100%;
    left:24px;
    right:24px;
    display:none;
    flex-direction:column;
    align-items:flex-start;
    background:rgba(248,251,253,.98);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border:1px solid var(--border);
    border-radius:0 0 18px 18px;
    box-shadow:0 24px 50px rgba(18,42,60,.16);
    padding:14px 20px 20px;
    gap:4px;
    margin:0;
  }
  .main-nav.open{display:flex;}
  .main-nav .nav-link{width:100%;padding:12px 4px;border-bottom:1px solid var(--border-light);}
  .main-nav .nav-link:last-child{border-bottom:none;}
  .nav-link::after{display:none;}
  .main-nav.open .active{color:var(--primary);}
  .hero-inner{padding:110px 0 88px;}
  .hero-notes{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:1fr;}
  .channels-grid{grid-template-columns:1fr;}
  .scene-wrap{grid-template-columns:1fr;padding:24px;}
  .news-layout{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:26px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px;}
  .footer-brand{grid-column:1/-1;}
  .step-copy h3{font-size:18px;}
}
@media (max-width:600px){
  .section{padding:52px 0;}
  .wrap{padding:0 18px;}
  .hero-inner{padding:84px 0 50px;}
  .header-inner{min-height:64px;}
  .brand-name{font-size:17px;}
  .brand-name .brand-letter{font-size:15px;}
  .hero h1{font-size:31px;}
  .hero-sub{font-size:16.5px;line-height:1.8;}
  .hero-cta .btn{width:100%;}
  .scene-wrap{padding:18px;}
  .scene-list{grid-template-columns:1fr;}
  .cta-section .cta-grid .lead-form{padding:26px 20px;}
  .steps-panel::before{left:26px;}
  .step-item{gap:18px;padding:17px 0;}
  .step-no{width:66px;height:66px;flex-basis:66px;border-radius:18px;font-size:18px;}
  .section-head h2{font-size:25px;}
  .feature-body{padding:20px;}
  .feature-body h3{font-size:20px;}
  .news-row{flex-wrap:wrap;}
  .news-arrow{display:none;}
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{justify-content:center;text-align:center;}
}
@media (max-width:480px){
  .brand-name{letter-spacing:0;}
  .quick-item{flex-direction:row;}
}

/* roulang page: article */
:root{
  --primary:#1E647A;
  --primary-deep:#154B5E;
  --primary-light:#E6F2F5;
  --accent:#F2A65A;
  --accent-dark:#D9862F;
  --accent-light:#FFF0DF;
  --page-bg:#F5F8FA;
  --surface:#FFFFFF;
  --text:#1D2A31;
  --text-secondary:#5B6F79;
  --text-muted:#8BA1AC;
  --border:#DDE8ED;
  --success:#4BA67B;
  --danger:#D96666;
  --radius-lg:18px;
  --radius-md:10px;
  --radius-sm:6px;
  --shadow:0 10px 28px rgba(30,84,101,.09);
  --shadow-hover:0 18px 38px rgba(30,84,101,.14);
  --shadow-header:0 4px 20px rgba(30,84,101,.07);
  --transition:.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--page-bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  min-height:100vh;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-deep)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:1rem}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{display:flex;flex-wrap:wrap}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px}
.cell{flex:0 0 auto;width:100%}
.small-12{width:100%}
.medium-6{width:50%}
.medium-5{width:41.66667%}
.medium-7{width:58.33333%}
@media screen and (max-width: 768px){
  .medium-6,.medium-5,.medium-7{width:100%}
}

/* 按钮体系 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-md);padding:12px 26px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),color var(--transition);
  text-align:center;line-height:1.3;white-space:nowrap;
}
.btn:focus-visible{outline:3px solid rgba(30,100,122,.35);outline-offset:3px}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
.btn-accent{background:var(--accent);color:#2A211A;border-color:var(--accent)}
.btn-accent:hover,.btn-accent:active{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px rgba(242,166,90,.28)}
.btn-outline{background:transparent;color:var(--primary);border-color:rgba(30,100,122,.45)}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary-deep);border-color:rgba(255,255,255,.3)}
.btn-white:hover{background:var(--primary-light);color:var(--primary-deep);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:.88rem;border-radius:22px}

/* 顶部品牌活动导航 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(221,232,237,.85);
  box-shadow:0 2px 14px rgba(30,84,101,.04);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:22px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:linear-gradient(145deg,#2A728B,#154B5E);
  display:inline-flex;align-items:center;justify-content:center;color:#F6C98A;
  box-shadow:0 6px 16px rgba(21,75,94,.18);
}
.brand-mark svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8}
.brand-name{font-size:1.2rem;font-weight:800;letter-spacing:.5px;color:var(--primary-deep)}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  display:inline-block;padding:8px 15px;font-size:.94rem;font-weight:600;color:var(--text-secondary);
  border-radius:999px;transition:color var(--transition),background var(--transition);
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary-deep);background:var(--primary-light)}
.header-meta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.live-chip{
  display:inline-flex;align-items:center;gap:7px;font-size:.83rem;color:var(--primary);
  background:#EFF6F8;border:1px solid #D8E8ED;border-radius:999px;padding:6px 13px;font-weight:500;
}
.live-chip .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(75,166,123,.15)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;
  color:var(--text);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}
@media screen and (max-width:1024px){
  .wrap{padding-left:18px;padding-right:18px}
  .header-inner{flex-wrap:wrap;gap:10px}
  .main-nav{
    display:none;order:5;width:100%;flex-direction:column;align-items:stretch;
    background:#fff;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow);
    padding:12px;margin-top:6px;
  }
  .main-nav.open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px;border-bottom:1px solid #F0F4F6}
  .nav-link:last-child{border-bottom:none}
  .nav-toggle{display:inline-flex}
  .live-chip span.live-text{display:none}
  .live-chip{padding:7px}
}
@media screen and (max-width:520px){
  .brand-name{font-size:1.06rem}
  .header-meta .btn{display:none}
}

/* 面包屑 */
.breadcrumb-area{
  margin-top:28px;background:#EDF3F6;border-radius:var(--radius-sm);
  padding:8px 14px;display:inline-flex;flex-wrap:wrap;align-items:center;gap:6px;
}
.breadcrumb-area i{font-style:normal;color:var(--text-muted);font-size:.88rem}
.breadcrumb-area a,.breadcrumb-area span{font-size:.9rem;color:var(--text-secondary)}
.breadcrumb-area span.current{color:var(--text);font-weight:600;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media screen and (max-width:520px){
  .breadcrumb-area span.current{max-width:170px}
}

/* 文章主体卡片 */
.article-shell{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:44px;margin:26px 0 46px;
}
.article-head{text-align:center;max-width:880px;margin:0 auto 30px;padding-top:16px}
.article-kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:.87rem;font-weight:700;
  background:var(--primary-light);padding:6px 16px;border-radius:999px;margin-bottom:20px;
}
.article-head h1{
  font-size:clamp(1.9rem,4vw,2.9rem);line-height:1.3;font-weight:800;color:var(--text);
  letter-spacing:1px;margin-bottom:18px;
}
.article-meta{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px 22px;color:var(--text-muted);font-size:.92rem;margin-bottom:24px}
.article-meta .item{display:inline-flex;align-items:center;gap:6px}
.article-meta .item svg{width:15px;height:15px;stroke:var(--text-muted);fill:none;stroke-width:2}
.article-meta .category-tag{
  display:inline-flex;align-items:center;gap:4px;background:var(--accent-light);color:#9A5E14;
  font-size:.8rem;font-weight:700;padding:4px 12px;border-radius:20px;
}
.article-summary{
  background:#F1F7F9;border-radius:16px;padding:22px 26px;text-align:left;
  max-width:860px;margin:0 auto 34px;border-left:4px solid var(--primary);color:var(--text-secondary);
  font-size:1rem;line-height:1.9;
}
.article-cover{
  border-radius:20px;overflow:hidden;margin-bottom:38px;box-shadow:var(--shadow);
  background:#E6EDF1;
}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
@media screen and (max-width:640px){
  .article-shell{padding:26px 18px;border-radius:16px}
  .article-cover img{aspect-ratio:4/3}
}

/* 正文阅读区 */
.article-main-content{max-width:780px;margin:0 auto}
.post-content p{font-size:1.05rem;line-height:2;margin-bottom:26px;color:#253841}
.post-content ul,.post-content ol{margin:0 0 30px;padding-left:24px}
.post-content ul{list-style:disc}
.post-content ol{list-style:decimal}
.post-content ul li,.post-content ol li{margin-bottom:10px;padding-left:4px;color:#2E414B}
.post-content h2{
  font-size:1.55rem;font-weight:800;margin:44px 0 18px;padding-left:15px;
  border-left:4px solid var(--accent);background:linear-gradient(90deg,#F2F7F9,transparent);
  border-radius:0 10px 10px 0;color:#18343F;
}
.post-content h3{
  font-size:1.22rem;font-weight:700;margin:34px 0 14px;color:var(--primary-deep);
}
.post-content h4{font-size:1.05rem;font-weight:700;margin:24px 0 12px}
.post-content a{border-bottom:1px solid rgba(30,100,122,.35)}
.post-content img,.post-content figure img{border-radius:14px;box-shadow:0 6px 18px rgba(30,84,101,.08);aspect-ratio:auto;object-fit:cover}
.post-content blockquote{
  background:#F2F7F9;border-radius:14px;border-left:4px solid var(--accent);
  padding:20px 24px;margin:30px 0;color:#334B56;font-size:1.02rem;
}
.post-content blockquote p:last-child{margin-bottom:0}
.post-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:.95rem}
.post-content th,.post-content td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.post-content th{background:#EFF5F7;color:#154B5E;font-weight:700}
.post-content hr{border:0;height:1px;background:var(--border);margin:36px 0}

/* 文章标签与文末信息 */
.article-end{
  border-top:1px solid #EAF0F3;border-bottom:1px solid #EAF0F3;
  margin:44px -8px 0;padding:22px 8px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  align-items:center;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-item{
  display:inline-flex;background:#F0F6F8;color:#45606B;border-radius:8px;
  padding:5px 12px;font-size:.82rem;
}
.article-source-tools{display:flex;gap:14px;align-items:center;color:var(--text-muted);font-size:.9rem}
.article-source-tools span{display:inline-flex;align-items:center;gap:6px}
@media screen and (max-width:640px){
  .article-end{flex-direction:column;align-items:flex-start}
}

/* 相关推荐 */
.related-section{margin-bottom:46px}
.related-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px;
}
h2.related-title{font-size:1.5rem;font-weight:800;color:var(--text);position:relative;padding-bottom:8px}
h2.related-title:after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;border-radius:3px;background:var(--accent)}
.related-sub{color:var(--text-muted);font-size:.92rem;font-weight:400}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.related-card{
  display:flex;background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden;
  box-shadow:0 4px 16px rgba(30,84,101,.05);transition:transform var(--transition),box-shadow var(--transition);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.related-card .thumb{width:35%;min-height:164px;background:#E6EDF1;overflow:hidden}
.related-card .thumb img{width:100%;height:100%;object-fit:cover}
.related-card .body{flex:1;padding:18px 20px;display:flex;flex-direction:column;justify-content:center;gap:10px}
.related-card h3{font-size:1.05rem;line-height:1.55;font-weight:700;color:var(--text);transition:color var(--transition)}
.related-card:hover h3{color:var(--primary)}
.related-card .meta{display:flex;align-items:center;gap:9px;color:var(--text-muted);font-size:.75rem}
.related-card .meta .line{width:26px;height:1px;background:var(--border);display:inline-block}
.related-card .arrow{font-weight:700;color:var(--primary);font-size:.85rem}
@media screen and (max-width:840px){.related-grid{grid-template-columns:1fr}}
@media screen and (max-width:560px){
  .related-card{flex-direction:column}
  .related-card .thumb{width:100%;min-height:140px}
}

/* 内容未找到 */
.notfound-section{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:76px 28px;margin:42px 0 60px;text-align:center;
}
.notfound-icon{
  width:64px;height:64px;border-radius:20px;background:var(--primary-light);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.notfound-icon svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:1.7}
.notfound-section h1{font-size:1.7rem;font-weight:800;margin-bottom:16px}
.notfound-section p{max-width:620px;margin:0 auto 26px;color:var(--text-secondary)}
.notfound-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 转化 CTA */
.page-cta{
  border-radius:24px;border:1px solid rgba(221,232,237,.9);background:
  linear-gradient(105deg, rgba(218,236,242,.97) 0%, rgba(246,249,250,.96) 55%, rgba(255,244,232,.92) 100%),
  url('/assets/images/backpic/back-1.webp') right center / cover no-repeat;
  padding:52px;margin:8px 0 52px;display:flex;align-items:center;justify-content:space-between;gap:34px;
  box-shadow:var(--shadow);
}
.page-cta-copy{max-width:650px}
.page-cta h2{font-size:clamp(1.45rem,2.5vw,2rem);font-weight:800;line-height:1.3;margin-bottom:14px;color:#18343F}
.page-cta p{color:var(--text-secondary);font-size:1rem;margin-bottom:6px}
.cta-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.cta-note{font-size:.86rem;color:var(--text-muted);margin-top:10px}
@media screen and (max-width:768px){
  .page-cta{flex-direction:column;padding:32px 22px;border-radius:18px}
}

/* 页脚 */
.site-footer{
  background:#EAEFF2;border-top:1px solid var(--border);
  color:#334B56;padding:48px 0 22px;margin-top:26px;
}
.site-footer .wrap.inner-footer{max-width:1200px}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:46px;padding-bottom:36px}
.footer-brand .brand{display:inline-flex;align-items:center;gap:10px;position:relative;top:0}
.footer-brand .brand-name{color:var(--primary-deep);font-weight:800;font-size:1.15rem}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:#DDE8ED;color:var(--primary);display:flex;align-items:center;justify-content:center}
.footer-brand .brand-mark svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.9}
.footer-desc{margin-top:18px;max-width:360px;color:#576C76;font-size:.9rem;line-height:1.8}
.footer-col h4{font-size:.95rem;font-weight:700;margin-bottom:14px;color:#23424D}
.footer-col ul li{margin-bottom:9px}
.footer-col a{color:#4B6571;font-size:.92rem;transition:color var(--transition),padding-left var(--transition)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{
  border-top:1px solid #D2DEE4;padding-top:18px;display:flex;justify-content:space-between;
  gap:10px;color:#84949C;font-size:.82rem;flex-wrap:wrap;
}
.footer-bottom a{color:#84949C}
@media screen and (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media screen and (max-width:600px){
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
:root {
  color-scheme: light;
  --page-bg: #F4F8FA;
  --surface: #FFFFFF;
  --surface-2: #EFF5F7;
  --text-strong: #142934;
  --text: #1E3440;
  --muted: #617884;
  --border: #DCE8EC;
  --primary-800: #173F49;
  --primary-700: #1D4D59;
  --primary-600: #2A6B76;
  --primary-500: #3E7B87;
  --primary-100: #D9EBEF;
  --primary-050: #F0F7F9;
  --accent-700: #B97A1C;
  --accent-600: #CE8A22;
  --accent-500: #E7A332;
  --accent-100: #FBEBD0;
  --success: #2E856E;
  --error: #C95353;
  --radius-lg: 18px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-xs: 0 2px 8px rgba(23, 63, 73, .05);
  --shadow-sm: 0 6px 20px rgba(23, 63, 73, .06);
  --shadow-lg: 0 18px 44px rgba(23, 63, 73, .13);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --img-placeholder: #E9EEF3;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
a:hover {
  color: var(--primary-800);
}
h1, h2, h3, h4 {
  margin: 0 0 16px;
  color: var(--text-strong);
  line-height: 1.28;
  font-weight: 700;
}
p {
  margin: 0 0 18px;
}
ul, ol {
  margin: 0;
  padding: 0;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.accordion-title:focus-visible {
  outline: 3px solid rgba(231, 163, 50, .45);
  outline-offset: 2px;
}
.grid-container {
  max-width: 1200px;
  padding-right: 24px;
  padding-left: 24px;
}
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 12px 26px;
  border: 2px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), opacity .2s var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: linear-gradient(180deg, #EDB455, #DD9B32);
  border-color: #CF8C1F;
  color: #2B2110;
  box-shadow: 0 8px 22px rgba(219, 153, 40, .24);
}
.btn-primary:hover {
  background: linear-gradient(180deg, #F4C267, #E5A53B);
  border-color: #D9992A;
  color: #241B0C;
  box-shadow: 0 12px 28px rgba(219, 153, 40, .3);
}
.btn-outline {
  background: transparent;
  border-color: var(--primary-700);
  color: var(--primary-700);
}
.btn-outline:hover {
  background: rgba(29, 77, 89, .07);
  border-color: var(--primary-800);
  color: var(--primary-800);
}
.btn-sm {
  min-height: 40px;
  padding: 8px 18px;
  font-size: 14px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220, 232, 236, .82);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 4px 0;
}
.brand:hover {
  color: inherit;
}
.brand-mark {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-800), var(--primary-600));
  color: #FFEAC7;
  box-shadow: 0 8px 18px rgba(23, 63, 73, .14);
}
.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-strong);
  letter-spacing: .01em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 60px;
  padding: 0 2px;
  font-size: 15px;
  font-weight: 600;
  color: #3A545E;
  border-bottom: 3px solid transparent;
}
.nav-link:hover {
  color: var(--primary-700);
}
.nav-link.active {
  color: var(--primary-800);
  border-bottom-color: var(--accent-500);
}
.header-extra {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: 6px;
}
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-100);
  border: 1px solid rgba(225, 159, 42, .25);
  border-radius: 999px;
  padding: 8px 14px;
  color: #7B5411;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.live-badge .live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-500);
  box-shadow: 0 0 0 4px rgba(231, 163, 50, .18);
}
.nav-toggle {
  display: none;
  position: relative;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 12px;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 12px;
  width: 20px;
  height: 2px;
  background: var(--primary-700);
  border-radius: 4px;
  transition: transform .2s var(--ease), top .2s var(--ease);
}
.nav-toggle span {
  top: 22px;
}
.nav-toggle span::before {
  top: -6px;
}
.nav-toggle span::after {
  top: 6px;
}
.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] span::before {
  top: 0;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span::after {
  top: 0;
  transform: rotate(-45deg);
}
.hero-city {
  position: relative;
  padding: 108px 0 104px;
  overflow: hidden;
  background: #EAF3F5;
  border-bottom: 1px solid var(--border);
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: .32;
}
.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(246, 251, 252, .97) 0%, rgba(244, 250, 251, .9) 45%, rgba(236, 246, 248, .38) 100%);
}
.hero-city .grid-container {
  position: relative;
  z-index: 2;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(29, 77, 89, .08);
  color: var(--primary-800);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 22px;
}
.hero-kicker .hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-500);
}
.hero-h1 {
  max-width: 900px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--primary-800);
}
.hero-h1 .topic-color {
  color: var(--primary-700);
}
.hero-lead {
  max-width: 760px;
  margin: 22px 0 0;
  font-size: 18px;
  line-height: 1.85;
  color: #34515E;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 34px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid rgba(29, 77, 89, .12);
}
.proof-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.proof-item strong {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-800);
  line-height: 1.2;
}
.proof-item span {
  color: var(--muted);
  font-size: 13px;
}
.section {
  padding: 96px 0;
}
.section-soft {
  background: var(--surface-2);
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-100);
  color: var(--primary-700);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-head {
  max-width: 780px;
  margin: 0 auto 54px;
  text-align: center;
}
.section-head h2 {
  font-size: clamp(27px, 3vw, 36px);
  margin-bottom: 16px;
}
.section-head .section-lead {
  font-size: 16px;
  color: var(--muted);
}
.img-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--img-placeholder);
  box-shadow: var(--shadow-sm);
}
.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.square-image {
  aspect-ratio: 4 / 3;
}
.card-image {
  aspect-ratio: 3 / 2;
}
.intro-section {
  background: var(--surface);
}
.feature-list {
  list-style: none;
  margin: 20px 0 28px;
}
.feature-list li {
  position: relative;
  padding: 8px 0 8px 32px;
  color: #2B414C;
  font-size: 15px;
}
.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 8px;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-100);
  color: var(--primary-700);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
}
.section-title {
  margin-bottom: 12px;
}
.support-card {
  height: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-xs);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.support-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
  border-color: #CDE3E9;
}
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: var(--primary-050);
  color: var(--primary-700);
  margin-bottom: 20px;
}
.support-card h3 {
  font-size: 19px;
  margin-bottom: 10px;
}
.support-card p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 0;
  line-height: 1.8;
}
.media-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xs);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.media-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.media-card .img-frame {
  border-radius: 0;
  box-shadow: none;
}
.media-body {
  padding: 24px 24px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.media-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.media-body p {
  font-size: 15px;
  color: var(--muted);
  flex: 1;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tag {
  display: inline-flex;
  align-items: center;
  background: var(--primary-050);
  color: var(--primary-700);
  border: 1px solid rgba(29, 77, 89, .08);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.process-section {
  position: relative;
  background: linear-gradient(145deg, #173C47, #235863);
  color: #EAF2F4;
  padding: 96px 0;
}
.process-section .section-tag {
  background: rgba(255, 255, 255, .12);
  color: #FFE7BF;
}
.process-section .section-head h2 {
  color: #FFFFFF;
}
.process-section .section-head .section-lead {
  color: rgba(255, 255, 255, .72);
}
.process-list {
  list-style: none;
  margin-left: 0;
}
.flow-step {
  position: relative;
  height: 100%;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius-lg);
  padding: 28px 26px 26px;
  backdrop-filter: blur(4px);
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.flow-step:hover {
  background: rgba(255, 255, 255, .11);
  transform: translateY(-3px);
}
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(255, 255, 255, .12);
  color: #F7C87B;
  font-size: 22px;
  font-weight: 800;
  border-radius: 16px;
  margin-bottom: 20px;
}
.flow-step h3 {
  color: #FFFFFF;
  font-size: 18px;
  margin-bottom: 10px;
}
.flow-step p {
  color: rgba(255, 255, 255, .75);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 0;
}
.faq-section {
  background: var(--page-bg);
}
.accordion {
  max-width: 860px;
  margin: 0 auto;
  list-style: none;
  margin-left: auto;
  margin-right: auto;
}
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.accordion-item.is-active {
  border-color: #C5DEE5;
  box-shadow: var(--shadow-sm);
}
.accordion-title {
  position: relative;
  display: block;
  min-height: 58px;
  padding: 20px 62px 20px 24px;
  background: var(--surface) !important;
  border: 0 !important;
  border-bottom: 1px solid transparent !important;
  margin: 0 !important;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.5;
  box-shadow: none !important;
}
.accordion-title:hover,
.accordion-item.is-active .accordion-title {
  background: #F8FBFD !important;
  color: var(--primary-800);
}
.accordion-title::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 20px;
  height: 20px;
  margin-top: -10px;
  border: 2px solid var(--primary-600);
  border-radius: 50%;
  text-align: center;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  color: var(--primary-600);
  background: #fff;
}
.accordion-item.is-active .accordion-title::after {
  content: "−";
  border-color: var(--accent-500);
  color: #7B5411;
}
.accordion-title::before {
  content: "+";
  position: absolute;
  right: 26px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-700);
  line-height: 1;
}
.accordion-item.is-active .accordion-title::before {
  content: "−";
  right: 27px;
}
.accordion-content {
  background: var(--surface);
  border: 0 !important;
  color: var(--muted);
  padding: 4px 26px 24px;
  font-size: 15px;
  line-height: 1.9;
  border-top: 0 !important;
}
.accordion-content p {
  margin: 0;
}
.cta-section {
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.cta-copy h2 {
  font-size: clamp(27px, 3vw, 36px);
  margin-bottom: 18px;
}
.cta-copy p {
  color: var(--muted);
  max-width: 520px;
}
.cta-list {
  list-style: none;
  margin-top: 24px;
}
.cta-list li {
  position: relative;
  padding: 7px 0 7px 32px;
}
.cta-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 8px;
  width: 20px;
  height: 20px;
  background: var(--accent-100);
  color: #7B5411;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
}
.cta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 34px;
}
.lead-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-strong);
  font-size: 14px;
}
.lead-form .req {
  color: var(--error);
  margin-left: 2px;
}
.lead-form input,
.lead-form select {
  width: 100%;
  height: 48px;
  border: 1px solid var(--border);
  background: #FBFCFF;
  border-radius: 10px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 20px;
  box-shadow: inset 0 1px 2px rgba(23, 63, 73, .03);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.lead-form input:focus,
.lead-form select:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(42, 107, 118, .14);
}
.lead-form .form-note {
  font-size: 13px;
  color: var(--muted);
  margin-top: -6px;
  margin-bottom: 20px;
}
.form-success {
  display: none;
  background: #EAF6F1;
  border: 1px solid #CBE6DE;
  color: #1F6B59;
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 20px;
  font-size: 14px;
}
.form-success.show {
  display: block;
}
.field-error input,
.field-error select {
  border-color: var(--error);
}
.form-error-tip {
  display: none;
  color: var(--error);
  font-size: 13px;
  margin: -14px 0 12px;
}
.form-error-tip.show {
  display: block;
}
.site-footer {
  background: #18313A;
  color: #D8E5EA;
  padding: 62px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 3fr 1.2fr 1.4fr;
  gap: 48px;
  padding-bottom: 42px;
}
.footer-brand .brand {
  color: #FFFFFF;
  padding: 0;
}
.footer-brand .brand .brand-name {
  color: #FFFFFF;
  font-size: 21px;
}
.footer-brand .brand .brand-mark {
  background: rgba(255, 255, 255, .12);
  color: #FFE7BF;
}
.footer-desc {
  color: rgba(255, 255, 255, .66);
  font-size: 14px;
  line-height: 1.9;
  margin-top: 18px;
  max-width: 420px;
}
.footer-col h4 {
  color: #FFFFFF;
  font-size: 16px;
  margin-bottom: 18px;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: rgba(255, 255, 255, .62);
  font-size: 14px;
}
.footer-col a:hover {
  color: #F7C87B;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}
@media screen and (max-width: 1100px) {
  .main-nav {
    gap: 18px;
  }
  .live-badge {
    display: none;
  }
}
@media screen and (max-width: 960px) {
  .site-header {
    padding-top: 8px;
    padding-bottom: 8px;
  }
  .nav-toggle {
    display: block;
    order: 3;
  }
  .header-extra {
    display: none;
  }
  .main-nav {
    position: fixed;
    top: 78px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(255, 255, 255, .98);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    padding: 16px;
    margin: 0;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
  }
  .main-nav.is-open {
    display: flex;
  }
  .nav-link {
    min-height: 46px;
    border: 0;
    border-left: 4px solid transparent;
    padding: 0 14px;
    font-size: 16px;
    align-items: center;
  }
  .nav-link.active {
    border-left-color: var(--accent-500);
    background: var(--primary-050);
    color: var(--primary-800);
  }
  .section {
    padding: 72px 0;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-desc {
    max-width: 560px;
  }
}
@media screen and (max-width: 680px) {
  .header-inner {
    min-height: 64px;
  }
  .brand-name {
    font-size: 18px;
  }
  .hero-city {
    padding: 76px 0 70px;
  }
  .hero-h1 {
    font-size: 30px;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-proof {
    gap: 18px 24px;
  }
  .section {
    padding: 60px 0;
  }
  .support-card {
    padding: 24px;
  }
  .cta-card {
    padding: 24px;
  }
  .accordion-title {
    padding: 16px 54px 16px 18px;
    font-size: 16px;
  }
  .accordion-content {
    padding: 4px 18px 20px;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category2 */
:root{
  --bg:#F5F8FA;
  --surface:#FFFFFF;
  --blue-deep:#0D3C5D;
  --blue:#17608D;
  --ink:#1B3852;
  --ink-soft:#435E75;
  --muted:#72899C;
  --line:#E3EBF1;
  --accent:#E9A13B;
  --accent-deep:#C67E1E;
  --green:#43A974;
  --danger:#D96A5B;
  --r-lg:16px;
  --r-md:10px;
  --r-sm:6px;
  --shadow-sm:0 3px 12px rgba(28,62,92,.06);
  --shadow:0 10px 26px rgba(28,62,92,.08);
  --shadow-hover:0 16px 32px rgba(28,62,92,.14);
  --transition:240ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.grid-container{max-width:1200px}
img{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-deep)}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(233,161,59,.55);outline-offset:2px;border-radius:4px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  height:74px;
  background:rgba(250,252,254,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(213,224,232,.8);
  transition:box-shadow var(--transition),background var(--transition);
}
.site-header.scrolled{box-shadow:0 6px 18px rgba(48,72,92,.06);background:rgba(248,251,253,.97)}
.header-inner{height:74px;display:flex;align-items:center;gap:26px}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);font-size:21px;font-weight:700;letter-spacing:.5px;white-space:nowrap;
}
.brand-logo:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:9px;
  background:linear-gradient(145deg,#EFB45A,#D9852A);
  display:flex;align-items:center;justify-content:center;
  color:#fff;box-shadow:0 4px 10px rgba(217,133,42,.28);
}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-link{
  position:relative;color:var(--ink-soft);font-size:15px;font-weight:500;line-height:72px;
  white-space:nowrap;padding:0 2px;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;
  border-radius:3px;background:transparent;transition:background var(--transition);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{background:transparent}
.nav-link.active{color:var(--blue-deep);font-weight:600}
.nav-link.active::after{background:var(--accent)}
.header-action{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.live-chip{
  display:inline-flex;align-items:center;gap:7px;
  background:#F7EDDF;color:#9B6518;
  font-size:12px;line-height:1;font-weight:600;
  padding:8px 12px;border-radius:20px;
}
.live-chip i{font-size:7px;color:var(--green)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;border:1px solid var(--accent);
  font-size:14px;font-weight:700;line-height:1;padding:12px 20px;border-radius:9px;
  box-shadow:0 6px 16px rgba(233,161,59,.26);cursor:pointer;
  transition:background var(--transition),box-shadow var(--transition),transform var(--transition);
}
.btn-primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(198,126,30,.28)}
.nav-toggle{
  display:none;background:var(--surface);border:1px solid var(--line);border-radius:8px;
  width:42px;height:42px;font-size:18px;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;
}

/* ===== Common Section ===== */
.section{position:relative;overflow:hidden}
.section-white{background:var(--surface)}
.section-soft{background:var(--bg)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--blue);background:#E7F0F6;
  border-radius:20px;padding:6px 13px;
  font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:14px;
}
.eyebrow i{color:var(--accent);font-size:11px}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-inline:auto;text-align:center}
.section-head h2{font-size:33px;line-height:1.2;color:var(--ink);margin:0 0 14px;font-weight:700;letter-spacing:.3px}
.section-head p{color:var(--ink-soft);font-size:16px;margin:0}

/* ===== KV ===== */
.kv-section{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:84px 0 88px;
}
.kv-section::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(108deg, rgba(246,250,253,.97) 10%, rgba(219,233,242,.90) 48%, rgba(248,238,223,.70) 100%);
}
.kv-inner{position:relative;z-index:1}
.crumb-line{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  color:var(--muted);font-size:13px;margin-bottom:22px;
}
.crumb-line a{color:var(--muted)}
.crumb-line a:hover{color:var(--blue-deep)}
.kv-copy h1{
  font-size:44px;line-height:1.22;color:var(--blue-deep);
  font-weight:800;margin:0 0 18px;letter-spacing:.6px;
}
.kv-copy h1 span{color:var(--accent-deep)}
.kv-lead{
  font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:640px;margin:0 0 28px;
}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-size:15px;font-weight:700;line-height:1;border-radius:9px;
  padding:14px 24px;cursor:pointer;transition:all var(--transition);border:1px solid transparent;
}
.btn-solid{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(233,161,59,.28)}
.btn-solid:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:#A8C1D1;color:var(--blue-deep)}
.btn-outline:hover{border-color:var(--blue-deep);background:rgba(13,60,93,.04);color:var(--blue-deep);transform:translateY(-2px)}
.kv-note{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:13px}
.kv-note i{color:var(--blue);margin-top:3px}
.kv-panel{
  background:rgba(255,255,255,.88);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.9);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:26px 24px;height:100%;width:100%;
}
.kv-panel h3{font-size:18px;margin:0 0 6px;color:var(--ink)}
.kv-panel > p{font-size:14px;color:var(--muted);margin-bottom:20px}
.kv-list{display:flex;flex-direction:column;gap:15px}
.kv-list li i{color:var(--accent);width:22px;font-size:16px}
.kv-list strong{display:block;color:var(--ink);font-size:15px;margin-bottom:3px}
.kv-list span{color:var(--muted);font-size:13px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.chip{display:inline-block;padding:5px 11px;border-radius:20px;background:#EFF5F8;color:var(--blue-deep);font-size:12px}
.chip.amber{background:#FAF1E2;color:#9B6518}

/* ===== Intro strip ===== */
.intro-section{padding:68px 0 28px}
.intro-message{
  display:flex;gap:22px;padding:26px 30px;background:linear-gradient(120deg,#F5F9FC,#EAF2F8);
  border:1px solid #E4EEF5;border-radius:var(--r-lg);margin-bottom:24px;
  align-items:flex-start;
}
.intro-message .icon-square{
  width:42px;height:42px;flex:0 0 42px;border-radius:10px;background:var(--blue-deep);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;
}
.intro-message p{color:var(--ink-soft);font-size:16px;margin:0}

/* ===== Service lines ===== */
.srv-section{padding:74px 0 82px}
.srv-row{
  display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center;
  padding:46px 0;border-bottom:1px solid #EAF0F5;
}
.srv-row:first-of-type{padding-top:10px}
.srv-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  position:relative;aspect-ratio:16/10;
}
.srv-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.srv-media:hover img{transform:scale(1.03)}
.srv-badge{
  position:absolute;left:16px;top:16px;background:rgba(255,255,255,.92);
  color:var(--blue-deep);font-size:13px;font-weight:700;
  padding:7px 13px;border-radius:20px;box-shadow:var(--shadow-sm);
}
.srv-copy .eyebrow{margin-bottom:10px}
.srv-copy h3{font-size:26px;line-height:1.3;color:var(--ink);margin:0 0 14px}
.srv-copy p{color:var(--ink-soft);font-size:16px}
.srv-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.srv-tags span{
  background:#F4F8FB;color:var(--blue-deep);font-size:13px;
  padding:6px 12px;border-radius:20px;border:1px solid #E2EDF4;
}

/* ===== Process ===== */
.process-section{padding:78px 0;background:#E9F1F6}
.process-timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px;
  counter-reset:step;
}
.step-box{
  background:var(--surface);border-radius:var(--r-lg);border:1px solid #E3ECF2;
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);
  transition:transform var(--transition),box-shadow var(--transition);
  position:relative;overflow:hidden;
}
.step-box::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--accent) 0%, var(--blue) 100%);opacity:.8;
}
.step-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:#EFF5F8;color:var(--blue-deep);font-weight:800;font-size:18px;margin-bottom:18px;
}
.step-box h3{font-size:18px;color:var(--ink);margin:0 0 10px;line-height:1.3}
.step-box p{color:var(--muted);font-size:14px;margin:0;line-height:1.7}

/* ===== Scene cards ===== */
.scene-section{padding:80px 0}
.scene-card{
  background:var(--surface);border-radius:var(--r-lg);border:1px solid var(--line);
  overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
  transition:transform var(--transition),box-shadow var(--transition);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scene-media{aspect-ratio:16/9;overflow:hidden;position:relative}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 65%,rgba(13,50,76,.08));
}
.scene-body{padding:22px 22px 24px}
.scene-body h3{font-size:19px;color:var(--ink);margin:0 0 8px}
.scene-body p{color:var(--ink-soft);font-size:14px;margin:0;line-height:1.8}
.scene-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-size:14px;font-weight:600;margin-top:14px}
.scene-link:hover{color:var(--accent-deep)}
.spot-wrap{background:var(--blue-deep);margin:70px -999px -80px;padding:0 999px;color:#fff}
.spark-features{
  padding:38px 0 0;
}
.spark-item{display:flex;gap:16px;align-items:flex-start;padding:15px 0}
.spark-item i{color:var(--accent);font-size:16px;margin-top:5px}
.spark-item p{margin:0;color:#C7DFEF;font-size:14px}
.spark-item b{display:block;color:#fff;font-size:16px;margin-bottom:5px}

/* ===== FAQ ===== */
.faq-section{padding:80px 0}
.faq-wrap{max-width:850px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid #E2EBF2;border-radius:12px;
  margin-bottom:14px;padding:0;overflow:hidden;
  transition:box-shadow var(--transition),border-color var(--transition);
}
.faq-item.open{box-shadow:var(--shadow-sm);border-color:#CBDCE7}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:20px 24px;color:var(--ink);font-size:16px;font-weight:600;
  text-align:left;transition:color var(--transition);
}
.faq-q:hover{color:var(--blue)}
.faq-q .icon{
  flex:0 0 24px;width:24px;height:24px;position:relative;
}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;transition:transform .25s ease;
}
.faq-q .icon::before{left:3px;right:3px;top:11px;height:2px}
.faq-q .icon::after{top:3px;bottom:3px;left:11px;width:2px}
.faq-item.open .faq-q{color:var(--blue-deep)}
.faq-item.open .faq-q .icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 20px;color:var(--ink-soft);font-size:15px;line-height:1.85}

/* ===== CTA Form ===== */
.cta-section{
  padding:84px 0;
  background:linear-gradient(128deg,#123B57 0%,#1B5675 70%,#2D6C7E 100%);
  color:#EAF3F8;
}
.cta-left h2{color:#fff;font-size:32px;line-height:1.25;margin:0 0 16px}
.cta-left p{color:#C1D7E5;font-size:16px;max-width:440px;margin-bottom:26px}
.cta-contact-list{display:flex;flex-direction:column;gap:13px}
.cta-contact-list li{display:flex;gap:12px;align-items:center;color:#E2EEF5;font-size:14px}
.cta-contact-list i{color:var(--accent);width:20px}
.form-card{
  background:var(--surface);border-radius:var(--r-lg);padding:28px;
  box-shadow:0 20px 40px rgba(4,20,32,.24);
}
.form-card h3{color:var(--ink);font-size:20px;margin:0 0 4px}
.form-card .form-desc{color:var(--muted);font-size:14px;margin-bottom:20px}
.fancy-field{margin-bottom:16px}
.fancy-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin-bottom:6px}
.fancy-field input,.fancy-field select,.fancy-field textarea{
  width:100%;height:46px;border:1px solid #D8E2EA;border-radius:8px;
  background:#FBFCFD;padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color var(--transition),box-shadow var(--transition);
  font-family:inherit;appearance:none;
}
.fancy-field textarea{height:92px;padding:12px 14px;resize:vertical}
.fancy-field select{
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='%2372879A' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2372879A' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.fancy-field input:focus,.fancy-field select:focus,.fancy-field textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(23,96,141,.12);
}
.form-submit{width:100%;margin-top:6px}

/* ===== Footer ===== */
.site-footer{
  background:#15344A;color:#BFD3DF;
}
.site-footer .wrap{
  max-width:1200px;margin-inline:auto;padding:62px 24px 0;
}
.footer-top{display:grid;grid-template-columns:1.5fr .8fr .9fr;gap:44px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .brand{
  display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;
}
.brand-mark{
  width:32px;height:32px;border-radius:8px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.brand-name{color:#fff}
.footer-desc{color:#AEC4D3;font-size:14px;line-height:1.8;margin:18px 0 0;max-width:360px}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:#BFD3DF;font-size:14px}
.footer-col ul a:hover{color:var(--accent)}
.footer-bottom{
  padding:20px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:#9DB7C6;font-size:13px;
}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .main-nav{gap:22px}
  .live-chip{display:none}
  .srv-row{gap:28px}
  .process-timeline{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:860px){
  .site-header,.header-inner{height:66px}
  .header-inner{flex-wrap:nowrap}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-action .btn-primary{display:none}
  .main-nav{
    position:fixed;top:66px;right:0;max-height:0;
    width:min(88vw,340px);background:rgba(251,253,255,.98);
    box-shadow:0 14px 24px rgba(30,60,80,.12);
    flex-direction:column;align-items:stretch;gap:0;
    overflow:hidden;margin-left:auto;border-radius:0 0 12px 12px;
    transition:max-height .3s ease;
  }
  .main-nav.open{max-height:520px;border-bottom:1px solid var(--line)}
  .main-nav .nav-link{
    display:block;line-height:1;padding:16px 24px;border-bottom:1px solid #ECF2F6;
  }
  .main-nav .nav-link.active{background:#F5FAFD}
  .main-nav .nav-link.active::after{display:none}
  .srv-row,.srv-row.reverse{grid-template-columns:1fr}
  .srv-row.reverse .srv-media{order:0}
  .kv-copy h1{font-size:34px}
  .section-head h2{font-size:28px}
  .cta-left h2{font-size:28px}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media screen and (max-width:640px){
  .kv-section{padding:52px 0 52px}
  .kv-copy h1{font-size:28px}
  .kv-lead{font-size:15px}
  .process-timeline{grid-template-columns:1fr}
  .intro-message{flex-direction:column;padding:22px}
  .section{padding-left:16px;padding-right:16px}
  .srv-copy h3{font-size:22px}
  .scene-body p{font-size:14px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-section{padding:58px 0}
  .section-head h2{font-size:25px}
  .crumb-line{font-size:12px}
  .hero-panel .kv-panel{margin-top:26px}
}

/* roulang page: category3 */
:root {
  --brand-deep: #163A52;
  --brand: #24627F;
  --brand-soft: #6C9CB3;
  --accent: #EDB55D;
  --accent-soft: #F6E3C2;
  --bg-page: #F2F6F9;
  --bg-card: #FFFFFF;
  --bg-panel: #EAF1F5;
  --text-main: #17303E;
  --text-sub: #3E5A6A;
  --text-weak: #748A97;
  --line: #DDE6EC;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 18px rgba(46, 87, 108, .08);
  --shadow-hover: 0 12px 26px rgba(41, 84, 105, .12);
  --ease: .25s cubic-bezier(.2, .7, .4, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-main);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
ul, ol, dl, p, h1, h2, h3, h4, h5, figure { margin: 0; padding: 0; }
:focus-visible { outline: 3px solid rgba(36, 98, 127, .4); outline-offset: 2px; border-radius: 2px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease);
}
.btn-primary {
  background: var(--accent);
  color: #2B2618;
  box-shadow: 0 4px 14px rgba(222, 154, 52, .25);
}
.btn-primary:hover {
  background: #F4C97D;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(222, 154, 52, .35);
}
.btn-outline {
  background: transparent;
  border-color: rgba(22, 58, 82, .4);
  color: var(--brand-deep);
}
.btn-outline:hover {
  background: rgba(22, 58, 82, .06);
  border-color: var(--brand-deep);
  transform: translateY(-1px);
}
a.btn:focus, button.btn:focus { outline: none; box-shadow: 0 0 0 4px rgba(237, 181, 93, .4); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: rgba(36, 98, 127, .08);
  padding: 4px 14px 4px 10px;
  border-radius: 999px;
  letter-spacing: .05em;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.section-title {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--brand-deep);
  margin-top: 14px;
}
.section-lead {
  max-width: 780px;
  color: var(--text-sub);
  margin-top: 10px;
  font-size: 16px;
}
.section-head {
  margin-bottom: 40px;
}
@media (max-width: 768px) {
  .section-title { font-size: 25px; }
  .wrap { padding: 0 16px; }
}

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid rgba(221, 230, 236, .7);
  transition: box-shadow .3s;
}
.site-header.scrolled {
  box-shadow: 0 6px 20px rgba(36, 98, 127, .08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
}
.brand-mark {
  width: 32px;
  height: 32px;
  color: var(--brand);
  background: var(--bg-panel);
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 32px;
}
.brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--brand-deep);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-link {
  color: var(--text-sub);
  font-weight: 600;
  font-size: 14px;
  padding: 6px 2px;
  position: relative;
  transition: color .2s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--brand);
  border-radius: 2px;
  transition: width .3s;
}
.nav-link:hover { color: var(--brand); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--brand); }
.header-cta-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  background: var(--accent-soft);
  color: #7C571A;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
}
.nav-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #C48A24;
}
.header-btn {
  min-height: 40px;
  padding: 0 17px;
  font-size: 13px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-panel);
  color: var(--brand-deep);
  border: 0;
  font-size: 19px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
@media (max-width: 1100px) {
  .nav-badge { display: none; }
}
@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .main-nav {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    display: none;
    padding: 12px 0 18px;
  }
  body.nav-open .main-nav { display: flex; }
  body.nav-open .site-header { background: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.08); }
  .nav-link { width: 100%; padding: 10px 2px; border-bottom: 1px solid #EDF2F6; }
}
@media (max-width: 520px) {
  .header-btn { display: none; }
}

/* ===== 分类主KV ===== */
.cat-hero {
  background:
    linear-gradient(105deg, rgba(243, 248, 251, .98) 0%, rgba(224, 237, 244, .82) 55%, rgba(200, 222, 234, .55) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: 50px;
  align-items: center;
  padding: 82px 0 90px;
}
.hero-copy { max-width: 700px; }
.hero-title {
  font-size: 38px;
  line-height: 1.32;
  font-weight: 800;
  color: var(--brand-deep);
  margin: 22px 0 16px;
  letter-spacing: .01em;
}
.hero-title .alt {
  font-weight: 400;
  color: var(--brand);
  margin-left: 8px;
}
.hero-text {
  color: var(--text-sub);
  font-size: 17px;
  line-height: 1.9;
  margin: 14px 0 0;
}
.hero-note {
  margin-top: 10px;
  color: var(--text-weak);
  font-size: 14px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 32px;
}
.hero-meta span {
  font-size: 14px;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-meta i { color: var(--brand-soft); }
.hero-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 24px;
  border: 1px solid rgba(216, 227, 234, .7);
}
.hero-card img {
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}
.hero-card-body { margin-top: 15px; }
.hero-card-body strong {
  display: block;
  color: var(--brand-deep);
  font-size: 16px;
  margin-bottom: 6px;
}
.hero-card-body p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
}
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; padding: 56px 0 62px; gap: 26px; }
  .hero-card { max-width: 480px; }
  .hero-title { font-size: 31px; }
}
@media (max-width: 520px) {
  .hero-title { font-size: 26px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}

/* ===== 区块通用 ===== */
.section-block {
  padding: 90px 0 50px;
}
.section-block-sm {
  padding: 46px 0 16px;
}

/* ===== 场景卡片墙 ===== */
.scene-wall {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 26px;
}
.scene-left {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 20px;
}
.scene-right {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.scene-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}
.scene-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(36, 98, 127, .2);
}
.scene-card.plain-card { display: flex; flex-direction: column; }
.scene-card.tall-card .scene-media { aspect-ratio: 5 / 3.4; }
.scene-card:first-child { grid-column: 1 / -1; }
.scene-card:first-child .scene-media {
  aspect-ratio: 21 / 7.5;
}
.scene-media {
  background: #E9EEF3;
  position: relative;
  overflow: hidden;
}
.scene-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .55s ease;
}
.scene-card:hover .scene-media img { transform: scale(1.04); }
.scene-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.scene-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand-deep);
  display: flex;
  align-items: baseline;
  gap: 7px;
}
.scene-body .scene-no {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 1px 9px;
  letter-spacing: .04em;
}
.scene-body p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  margin-top: 8px;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
  padding-top: 4px;
}
.tag-list span {
  background: var(--bg-panel);
  color: var(--brand);
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 600;
}
.scene-right-card {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px;
  align-items: center;
  box-shadow: var(--shadow-card);
  transition: transform var(--ease), box-shadow var(--ease);
}
.scene-right-card:hover { transform: translateX(4px); box-shadow: var(--shadow-hover); }
.scene-right-card .icon-badge {
  width: 48px;
  height: 48px;
  background: var(--accent-soft);
  color: #8E6420;
  border-radius: 14px;
  flex: 0 0 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.scene-right-card h4 { font-size: 15px; font-weight: 700; color: var(--brand-deep); line-height: 1.4; }
.scene-right-card h4 i { color: var(--brand); font-style: normal; }
.scene-right-card p { font-size: 13px; color: var(--text-sub); margin-top: 4px; line-height: 1.6; }
@media (max-width: 1100px) {
  .scene-wall { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .scene-left { grid-template-columns: 1fr; }
  .scene-card:first-child { grid-column: auto; }
  .scene-card:first-child .scene-media { aspect-ratio: 4 / 3; }
  .section-block { padding-top: 64px; }
}

/* ===== 照明层次介绍 ===== */
.layering-block {
  background: var(--bg-card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.layering-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 50px;
}
.layering-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 50px;
  gap: 20px;
}
.layer-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-page);
  padding: 26px 20px;
  transition: background .25s, transform .25s, box-shadow .25s;
}
.layer-item:hover {
  background: #FFFFFF;
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.layer-item .step {
  font-size: 27px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--brand-soft);
  letter-spacing: -.03em;
}
.layer-item h3 { font-size: 17px; color: var(--brand-deep); margin: 12px 0 7px; font-weight: 700; }
.layer-item p { font-size: 14px; line-height: 1.8; color: var(--text-sub); }
@media (max-width: 1000px) {
  .layering-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .layering-steps { grid-template-columns: 1fr; }
}

/* ===== 左右图文模块 ===== */
.split-row {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 44px;
  align-items: center;
  margin: 84px 0;
}
.split-row.reverse { direction: rtl; }
.split-row.reverse > * { direction: ltr; }
.split-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--bg-panel);
}
.split-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.split-media::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 46%;
  background: linear-gradient(to top, rgba(15, 49, 73, .32), transparent);
  pointer-events: none;
}
.media-note {
  position: absolute;
  z-index: 2;
  left: 16px;
  bottom: 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  background: rgba(15, 40, 60, .48);
  padding: 3px 12px;
  border-radius: 999px;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.split-copy h2 { font-size: 30px; color: var(--brand-deep); font-weight: 700; }
.split-copy .lead { color: var(--text-sub); margin-top: 16px; }
.split-list {
  list-style: none;
  margin-top: 22px;
}
.split-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text-main);
  line-height: 1.85;
  margin-top: 12px;
}
.split-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  background: var(--accent-soft);
  color: #9B6C19;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  line-height: 1;
  font-weight: 800;
}
@media (max-width: 820px) {
  .split-row, .split-row.reverse { grid-template-columns: 1fr; direction: ltr; }
  .split-row.reverse > * { direction: ltr; }
  .split-row { gap: 24px; margin: 42px 0; }
}

/* ===== 知识卡片列表 ===== */
.knowledge-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.knowledge-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 24px 26px 28px;
  border-top: 4px solid var(--brand);
  transition: transform .25s ease, box-shadow .25s ease;
}
.knowledge-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.knowledge-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: var(--bg-panel);
  border-radius: 999px;
  padding: 2px 12px;
  display: inline-block;
  letter-spacing: .04em;
}
.knowledge-card h3 {
  font-size: 18px;
  color: var(--brand-deep);
  font-weight: 700;
  margin: 14px 0 8px;
}
.knowledge-card p {
  color: var(--text-sub);
  line-height: 1.8;
}
.knowledge-card small {
  display: block;
  color: var(--text-weak);
  margin-top: 16px;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
  font-size: 13px;
  line-height: 1.6;
}
@media (max-width: 820px) {
  .knowledge-list { grid-template-columns: 1fr; }
}

/* ===== 工程流程 ===== */
.process-block {
  background: linear-gradient(120deg, #E6F0F4, #F1F7F8);
  border-radius: 22px;
  position: relative;
  overflow: hidden;
}
.process-block .process-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
  padding: 44px 0;
}
.process-copy { height: 100%; display: flex; flex-direction: column; justify-content: center; }
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 26px;
}
.process-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-radius: 14px;
  background: rgba(255,255,255,.5);
  border: 1px solid rgba(255,255,255,.7);
  padding: 15px 18px;
  transition: background .25s, border-color .25s;
}
.process-step:hover { background: white; border-color: rgba(36, 98, 127, .15); }
.process-step .num {
  min-width: 32px;
  height: 32px;
  background: var(--brand);
  color: #fff;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}
.process-step h4 { color: var(--brand-deep); font-size: 16px; line-height: 1.5; }
.process-step p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }
@media (max-width: 900px) {
  .process-block .process-grid { grid-template-columns: 1fr; padding: 30px 0; }
  .processBlock { padding-bottom: 30px; }
}

/* ===== FAQ / 手风琴 ===== */
.faq-block { max-width: 920px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(36, 98, 127, .04);
  overflow: hidden;
  transition: box-shadow .25s, border-color .25s;
}
.faq-item[open] {
  border-color: rgba(36, 98, 127, .2);
  box-shadow: 0 6px 18px rgba(36, 98, 127, .08);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-main);
  padding: 20px 24px;
  font-size: 16px;
  transition: color .2s;
  line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--brand); }
.faq-item .facicon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  background: var(--bg-panel);
  color: var(--brand);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 300;
  margin-left: 20px;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.faq-item[open] .facicon { background: var(--accent); color: #7A5A16; transform: rotate(45deg); }
.faq-item .faq-body {
  color: var(--text-sub);
  padding: 0 24px 22px;
  font-size: 15px;
  line-height: 1.95;
  border-top: 1px dashed var(--line);
  margin-top: 0;
}
.faq-item .faq-body p { margin-top: 14px; }

/* ===== 底部 CTA 表单 ===== */
.lead-cta-band {
  background: var(--brand-deep);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-blend-mode: multiply;
  color: #fff;
  border-radius: 24px;
  padding: 56px 32px;
  margin-top: 100px;
  position: relative;
  overflow: hidden;
}
.lead-cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(13, 46, 67, .85) 10%, rgba(26, 67, 91, .62) 60%, rgba(36, 98, 127, .45) 100%);
}
.lead-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: center;
}
.lead-copy .eyebrow {
  background: rgba(255, 255, 255, .1);
  color: #FFF3D9;
}
.lead-copy .eyebrow::before { background: var(--accent); }
.lead-copy h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
  margin-top: 18px;
}
.lead-copy .sub { color: rgba(255,255,255,.8); line-height: 1.9; margin-top: 14px; }
.lead-list { list-style: none; margin-top: 22px; }
.lead-list li { padding-left: 28px; position: relative; color: rgba(255, 255, 255, .92); margin-top: 8px; font-size: 15px; }
.lead-list li::before { content: "›"; color: var(--accent); font-weight: 800; position: absolute; left: 8px; }
.lead-form-box {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 18px 36px rgba(9, 33, 47, .3);
  padding: 28px 26px 30px;
}
.lead-form-box h3 { color: var(--brand-deep); font-size: 20px; font-weight: 700; }
.lead-form-box .fs-sub { color: var(--text-sub); font-size: 14px; margin: 6px 0 16px; }
.form-group { margin-bottom: 14px; }
.form-label {
  display: block;
  margin-bottom: 5px;
  color: var(--text-main);
  font-weight: 600;
  font-size: 13px;
}
.form-control {
  display: block;
  width: 100%;
  height: 46px;
  border: 1px solid #C9D6DD;
  border-radius: 8px;
  background: #fff;
  color: var(--text-main);
  padding: 0 13px;
  transition: border .2s, box-shadow .3s;
  font-size: 14px;
}
textarea.form-control { height: auto; padding: 10px 13px; }
.form-control:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(36, 98, 127, .13);
  outline: none;
}
.select-control { appearance: auto; }
.form-wrap .btn { width: 100%; margin-top: 6px; }
.form-agreement {
  font-size: 12px;
  color: var(--text-weak);
  line-height: 1.5;
  margin-top: 14px;
}
@media (max-width: 880px) {
  .lead-grid { grid-template-columns: 1fr; gap: 26px; }
  .lead-cta-band { padding: 34px 18px; margin-top: 40px; }
}

/* ===== 页脚 ===== */
.site-footer {
  background: #EAF1F5;
  border-top: 1px solid white;
  padding: 56px 0 22px;
  font-size: 15px;
  color: var(--text-sub);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 42px;
}
.footer-brand .ab { display: flex; align-items: center; gap: 8px; }
.footer-name {
  font-weight: 800;
  color: var(--brand-deep);
  font-size: 20px;
}
.footer-desc {
  margin-top: 12px;
  line-height: 1.8;
  color: var(--text-sub);
  max-width: 400px;
}
.footer-col h4 {
  font-size: 14px;
  color: var(--brand-deep);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 15px;
  font-weight: 700;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-sub); font-size: 14px; transition: padding .2s, color .2s; }
.footer-col a:hover { color: var(--brand); padding-left: 3px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--text-weak);
}
@media (max-width: 840px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 5px; }
}

/* ===== 移动端骨架 ===== */
.img-responsive { width: 100%; height: auto; }
@media (max-width: 640px) {
  .section-title { font-size: 22px; }
  .split-media img { aspect-ratio: 1 / .8; }
  .lead-form-box { padding: 22px 17px; }
}

/* roulang page: category4 */
:root{
  --bg-page:#F2F7FA;
  --bg-deep:#E7EFF5;
  --surface:#FFFFFF;
  --brand:#1D4E70;
  --brand-deep:#123A58;
  --brand-soft:#E6F0F7;
  --amber:#E59A3A;
  --amber-deep:#C87D25;
  --amber-soft:#FCEFDE;
  --success:#2F8B7D;
  --text-main:#1B2A38;
  --text-sub:#5A6C7A;
  --text-light:#8B99A6;
  --line:#DCE8F0;
  --radius-lg:18px;
  --radius-md:10px;
  --radius-sm:6px;
  --shadow-card:0 8px 24px rgba(18,58,88,.05);
  --shadow-hover:0 16px 34px rgba(18,58,88,.1);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-page);color:var(--text-main);font-family:var(--font-main);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:var(--brand-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(229,154,58,.45);outline-offset:2px}
p{line-height:1.85}
ul,ol{list-style:none}
.wrap{max-width:1200px;width:100%;margin:0 auto;padding-left:28px;padding-right:28px}
.section-pad{padding:92px 0}
.section-head{max-width:760px;margin:0 auto 54px;text-align:center}
.section-head .kicker{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border:1px solid #D2E4F0;padding:5px 14px;border-radius:30px;margin-bottom:16px}
.section-head h2{font-size:32px;line-height:1.35;color:var(--text-main);letter-spacing:.01em;margin-bottom:14px}
.section-head p{color:var(--text-sub);font-size:16px}

.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(200,216,228,.8)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:28px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo .brand-symbol{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#E4A24B,#E0832E);display:flex;align-items:center;justify-content:center;color:#fff}
.brand-logo .brand-symbol svg{width:22px;height:22px}
.brand-logo .brand-text{font-size:20px;font-weight:700;color:var(--brand-deep);letter-spacing:.02em;white-space:nowrap}
.header-right{display:flex;align-items:center;gap:14px}
.nav-wrap{display:flex;align-items:center;gap:22px}
.main-nav{display:flex;align-items:center;gap:30px}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--text-sub);padding:12px 2px;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--amber);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-link:hover{color:var(--brand-deep)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-deep)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 24px;border-radius:10px;font-size:15px;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;cursor:pointer;border:1px solid transparent}
.btn-sm{min-height:40px;padding:7px 18px;font-size:14px;border-radius:8px}
.btn-amber{background:var(--amber);border-color:var(--amber);color:#fff;box-shadow:0 8px 18px rgba(229,154,58,.28)}
.btn-amber:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px rgba(200,125,37,.32)}
.btn-navy{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(29,78,112,.22)}
.btn-navy:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(18,58,88,.28)}
.btn-line{background:#fff;border-color:#C7D8E5;color:var(--brand)}
.btn-line:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep)}
.header-cta{background:var(--amber);border-color:var(--amber);color:#fff;box-shadow:0 6px 14px rgba(229,154,58,.24)}
.header-cta:hover{background:var(--amber-deep);color:#fff}
.nav-toggle{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease}

.category-hero{position:relative;background:#DCEAF3;overflow:hidden;padding:70px 0 96px}
.category-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center 38% no-repeat;background-size:cover;z-index:0}
.category-hero .hero-veil{position:absolute;inset:0;background:linear-gradient(96deg,rgba(220,234,243,.97) 0%,rgba(230,240,248,.82) 45%,rgba(226,237,245,.62) 100%);z-index:1}
.category-hero .wrap{position:relative;z-index:2}
.hero-inner .grid-x{align-items:stretch}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:26px}
.breadcrumb a{font-size:14px;font-weight:500;color:var(--brand-deep)}
.breadcrumb span{color:var(--text-light);font-size:14px}
.breadcrumb .divider{opacity:.6}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;padding:6px 14px;border-radius:30px;background:rgba(255,255,255,.7);border:1px solid rgba(29,78,112,.2);color:var(--brand-deep);margin-bottom:20px}
.eyebrow .pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 4px rgba(229,154,58,.18)}
.category-hero h1{font-size:42px;line-height:1.26;font-weight:700;letter-spacing:.01em;color:var(--brand-deep);margin-bottom:18px}
.hero-subtitle{max-width:560px;color:var(--text-sub);font-size:16px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-note-card{height:100%;background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.85);box-shadow:var(--shadow-card);border-radius:var(--radius-lg);padding:28px 26px;backdrop-filter:blur(8px)}
.hero-note-head{display:flex;align-items:center;gap:8px;color:var(--brand-deep);font-weight:700;margin-bottom:14px}
.hero-note-head i{color:var(--amber)}
.hero-note-card p{font-size:14px;color:var(--text-sub)}
.hero-note-card ul{margin-top:18px;border-top:1px dashed var(--line);padding-top:16px}
.hero-note-card li{display:flex;align-items:center;gap:10px;font-size:14px;padding:5px 0;color:var(--text-sub)}
.hero-note-card li i{width:20px;color:var(--brand);font-size:13px;text-align:center}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand-deep);margin-top:20px;border-bottom:1px solid transparent}
.text-link:hover{border-bottom-color:var(--amber)}

.feature-block,.quality-block{background:#fff}
.feature-block .section-pad,.quality-block .section-pad{padding:92px 0}
.feature-list{padding-top:8px}
.feature-item{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:64px;padding:28px 0 64px}
.feature-item:last-child{padding-bottom:0}
.feature-item.reverse .feature-media{order:2}
.feature-media .media-frame{overflow:hidden;border-radius:20px;background:#E9EEF3;box-shadow:var(--shadow-hover)}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:7/5}
.feature-text .step-number{display:inline-flex;width:46px;height:46px;border-radius:14px;background:var(--brand-soft);color:var(--brand);font-weight:700;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.feature-text h3{font-size:25px;color:var(--text-main);line-height:1.4;margin-bottom:14px}
.feature-text p{color:var(--text-sub);font-size:15px;margin-bottom:18px}
.feature-text ul{display:grid;gap:10px}
.feature-text li{position:relative;padding-left:26px;color:var(--text-sub);font-size:15px}
.feature-text li i{position:absolute;left:0;top:4px;width:18px;height:18px;color:var(--amber)}
.feature-link{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-weight:600;color:var(--brand);font-size:15px}

.scope-block{background:linear-gradient(180deg,#EEF4F8,#F6FAFC)}
.scope-wall{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-flow:dense;gap:24px}
.scope-card{grid-column:span 6;background:#fff;border:1px solid #E3EDF4;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease}
.scope-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scope-card.wide{grid-column:span 7}
.scope-card.narrow{grid-column:span 5}
.scope-media{overflow:hidden;background:#E9EEF3}
.scope-card.wide .scope-media{aspect-ratio:16/8}
.scope-card.narrow .scope-media{aspect-ratio:16/8}
.scope-media img{width:100%;height:100%;object-fit:cover}
.scope-body{padding:26px 26px 28px}
.scope-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag-chip{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:30px;background:var(--brand-soft);color:var(--brand);line-height:1.6}
.tag-chip.amber{background:var(--amber-soft);color:var(--amber-deep)}
.scope-body h3{font-size:20px;color:var(--text-main);margin-bottom:8px;line-height:1.4}
.scope-body p{color:var(--text-sub);font-size:14px;line-height:1.8;margin-bottom:12px}
.scope-body .more-note{font-size:14px;color:var(--text-light)}
.scope-card .arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;margin-bottom:8px}

.process-block{background:#fff}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process-step{position:relative;padding:30px 26px;background:#F4F8FB;border:1px solid #E1EBF2;border-radius:var(--radius-lg);transition:transform .2s ease,box-shadow .2s ease}
.process-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}
.process-step::after{content:"";position:absolute;top:46px;right:-15px;width:12px;height:12px;border-top:2px solid #CADBEA;border-right:2px solid #CADBEA;transform:rotate(45deg);z-index:1}
.process-step:last-child::after{display:none}
.process-step .step-num{font-size:34px;font-weight:700;color:#D6E4EF;line-height:1;display:block;margin-bottom:14px}
.process-step i{width:40px;height:40px;border-radius:10px;background:var(--amber-soft);color:var(--amber-deep);display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:18px}
.process-step h3{font-size:18px;color:var(--text-main);margin-bottom:10px}
.process-step p{font-size:14px;color:var(--text-sub)}

.quality-block{background:#EFF5F9}
.quality-head{max-width:800px;margin:0 auto 40px;text-align:center}
.quality-head h2{font-size:32px;margin-bottom:14px}
.quality-head p{color:var(--text-sub)}
.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quality-card{background:#fff;border:1px solid #E4EDF4;border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-card)}
.quality-card i{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px}
.quality-card h3{font-size:16px;margin-bottom:8px}
.quality-card p{font-size:14px;color:var(--text-sub);line-height:1.75}
.quality-note{max-width:820px;margin:34px auto 0;text-align:center;background:#fff;border:1px dashed #CCDFEB;border-radius:16px;padding:20px 28px;color:var(--text-sub);font-size:14px}
.quality-note i{color:var(--amber);margin-right:6px}

.faq-block{background:#ffffff}
.faq-panel{width:min(860px,100%);margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 4px;background:none;border:0;cursor:pointer;text-align:left;font-size:17px;font-weight:600;color:var(--text-main);transition:color .2s ease}
.faq-question:hover{color:var(--brand-deep)}
.faq-question .faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .25s ease,background .2s ease,border-color .2s ease}
.faq-item.active .faq-question{color:var(--brand-deep)}
.faq-item.active .faq-icon{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-answer-inner{padding:0 44px 26px 4px;color:var(--text-sub);font-size:15px;line-height:1.85}

.cta-block{background:linear-gradient(150deg,#EAF1F6 0%,#D5E3ED 100%);padding:0}
.cta-card{display:grid;grid-template-columns:.95fr 1.05fr;gap:68px;background:rgba(255,255,255,.92);box-shadow:0 24px 60px rgba(18,58,88,.1);border-radius:26px;padding:52px 54px;margin:92px auto;transform:translateY(0)}
.cta-text h2{font-size:32px;line-height:1.35;color:var(--brand-deep);margin-bottom:20px}
.cta-text p{color:var(--text-sub);font-size:15px;margin-bottom:26px}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.cta-points li{display:flex;gap:10px;color:var(--text-sub);font-size:14px}
.cta-points i{color:var(--success);padding-top:5px}
.cta-alert{display:inline-flex;align-items:center;gap:8px;font-size:13px;background:var(--amber-soft);border:1px solid #F5D9B8;padding:9px 14px;border-radius:10px;color:#8A5A20}
.form-card input,.form-card select,.form-card textarea{height:48px;border:1px solid #C8D7E3;border-radius:10px;padding:0 14px;font-size:15px;background:#fff;color:var(--text-main);transition:border-color .2s ease,box-shadow .2s ease;width:100%;font-family:var(--font-main)}
.form-card textarea{height:auto;min-height:104px;padding:13px 14px;resize:vertical}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,78,112,.12)}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--text-main);margin-bottom:15px}
.form-group{margin-bottom:20px}
.form-card .btn{width:100%;margin-top:8px}
.form-note{font-size:13px;color:var(--text-light);margin-top:12px}
.form-success{display:none;background:#E2F3EE;border:1px solid #B7DFD4;color:#1E6E5F;border-radius:10px;padding:12px 14px;font-size:14px;margin-top:14px}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%235A6C7A' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}

.site-footer{background:var(--brand-deep);color:#D7E7F2;margin-top:0}
.site-footer .copyright-band{padding:0}
.footer-top{display:grid;grid-template-columns:1.25fr .7fr .8fr;gap:52px;padding:60px 0 42px}
.footer-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--amber);color:#fff;display:flex;align-items:center;justify-content:center}
.brand-name{font-size:19px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;color:#B5CFE0;line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:9px}
.footer-col a{font-size:14px;color:#B9D2E2;display:inline-flex;align-items:center;gap:6px}
.footer-col a:hover{color:#F8E5C5}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding:22px 0 26px;color:#A6C4D8;font-size:13px}
.footer-bottom a{color:#D0E4F0}

@media (max-width:1024px){
  .nav-toggle{display:flex}
  .nav-wrap{position:absolute;top:calc(100% + 8px);left:16px;right:16px;background:#fff;border:1px solid var(--line);box-shadow:0 24px 44px rgba(18,58,88,.12);border-radius:16px;padding:18px;flex-direction:column;align-items:stretch;gap:14px;display:none}
  .nav-wrap.open{display:flex}
  .main-nav{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:12px 10px;border-radius:8px;border-bottom:1px solid #f0f4f7;font-size:15px}
  .nav-link::after{display:none}
  .nav-link:hover,.nav-link.active{background:var(--brand-soft)}
  .header-cta{display:flex}
  .feature-item{grid-template-columns:1fr;gap:34px}
  .feature-item.reverse .feature-media{order:0}
  .scope-card,.scope-card.wide,.scope-card.narrow{grid-column:span 12}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .process-step::after{display:none}
  .quality-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;gap:40px;padding:40px}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:680px){
  .wrap{padding-left:16px;padding-right:16px}
  .section-pad{padding:64px 0}
  .category-hero{padding:48px 0 60px}
  .category-hero h1{font-size:30px}
  .hero-subtitle{font-size:15px}
  .page-title-block p{font-size:15px}
  .section-head h2,.quality-head h2,.cta-text h2{font-size:26px}
  .feature-item{gap:30px}
  .feature-text h3{font-size:22px}
  .feature-item{padding-bottom:52px}
  .process-steps{grid-template-columns:1fr}
  .quality-grid{grid-template-columns:1fr}
  .cta-card{padding:24px 18px;border-radius:20px;margin:56px 0}
  .faq-question{font-size:16px}
  .faq-answer-inner{padding:0 4px 20px 4px}
  .footer-top{grid-template-columns:1fr;gap:34px;padding:44px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
}