/* roulang page: index */
:root{
  --green:#0E3B34;
  --green-deep:#0B1F1C;
  --green-soft:#E7F0ED;
  --orange:#FF6B2C;
  --orange-soft:#FFEDE4;
  --cyan:#2DD4BF;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#10201C;
  --muted:#5B6B66;
  --line:rgba(14,59,52,.12);
  --line-strong:rgba(14,59,52,.22);
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 10px 30px rgba(14,59,52,.08);
  --shadow-hover:0 16px 40px rgba(14,59,52,.12);
  --container:1240px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{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 SC",-apple-system,"Helvetica Neue",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--green);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--orange);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:.2px;}
h1{font-size:clamp(30px,4vw,52px);}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(18px,1.5vw,22px);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);margin-top:14px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:2px;
  font-weight:700;
  color:var(--orange);
  text-transform:uppercase;
  margin-bottom:12px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:16px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .2s ease;
}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{background:var(--orange);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-outline{background:#fff;color:var(--green);border-color:var(--line-strong);}
.btn-outline:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-1px);}
.btn-soft{background:var(--green-soft);color:var(--green);}
.btn-soft:hover{background:var(--green);color:#fff;}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px;border-radius:10px;}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--green) 0%,#14655A 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:17px;letter-spacing:-.5px;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;color:var(--green);letter-spacing:.3px;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:1.5px;}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-phone{font-size:14px;color:var(--muted);font-family:var(--mono);}

.nav-chips{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:10px 0 14px;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--green);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{background:var(--green-soft);color:var(--green);border-color:var(--line-strong);}
.chip.is-active{background:var(--green);color:#fff;border-color:var(--green);}

/* Hero */
.hero{
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(115deg,rgba(11,31,28,.94) 0%,rgba(14,59,52,.9) 48%,rgba(14,59,52,.72) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:88px 0 96px;
}
.hero::after{
  content:"";
  position:absolute;inset:auto 0 0 0;height:6px;
  background:repeating-linear-gradient(90deg,var(--orange) 0 28px,transparent 28px 56px);
  opacity:.85;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 15px;border-radius:var(--radius-pill);
  background:rgba(45,212,191,.16);
  border:1px solid rgba(45,212,191,.42);
  color:#9FF3E6;font-size:14px;font-weight:600;margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:20px;}
.hero-sub{
  font-size:18px;color:rgba(255,255,255,.86);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:18px;font-size:15px;color:rgba(255,255,255,.78);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{color:var(--cyan);}

.hero-panel{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  border-radius:20px;
  padding:24px;
  backdrop-filter:blur(4px);
}
.hero-panel-title{
  display:flex;justify-content:space-between;align-items:center;
  font-size:14px;letter-spacing:1px;color:rgba(255,255,255,.7);margin-bottom:16px;
}
.dot-grid{
  width:56px;height:14px;
  background-image:radial-gradient(rgba(255,255,255,.55) 1.2px,transparent 1.2px);
  background-size:7px 7px;
}
.metric-list{display:grid;gap:12px;}
.metric-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(11,31,28,.42);
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px;
  padding:14px 16px;
}
.metric-row .label{font-size:15px;color:rgba(255,255,255,.82);}
.metric-row .value{font-family:var(--mono);font-size:20px;font-weight:700;color:#fff;}
.metric-row .value small{font-size:12px;color:var(--cyan);margin-left:4px;}

/* 指标看板 */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.kpi-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px 22px;
  box-shadow:var(--shadow);
  transition:all .22s ease;
  overflow:hidden;
}
.kpi-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:4px;
  background-image:repeating-linear-gradient(90deg,var(--green) 0 10px,transparent 10px 16px);
  opacity:.5;
}
.kpi-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.kpi-card .kpi-num{
  font-family:var(--mono);
  font-size:34px;font-weight:700;color:var(--green);line-height:1.1;
}
.kpi-card .kpi-num span{font-size:15px;color:var(--muted);margin-left:4px;font-weight:600;}
.kpi-card .kpi-label{margin-top:10px;font-size:15px;color:var(--ink);font-weight:600;}
.kpi-card .kpi-desc{margin-top:6px;font-size:14px;color:var(--muted);}
.trend{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:700;padding:3px 9px;border-radius:6px;
}
.trend-up{background:rgba(45,212,191,.16);color:#0E7C6E;}
.trend-warn{background:var(--orange-soft);color:#C2470F;}

/* 服务矩阵 */
.matrix{
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr;
  grid-template-rows:auto auto;
  gap:22px;
}
.matrix-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:all .22s ease;
  display:flex;flex-direction:column;gap:12px;
}
.matrix-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.matrix-card p{color:var(--muted);font-size:15.5px;}
.matrix-feature{
  grid-row:span 2;
  background:linear-gradient(160deg,var(--green) 0%,var(--green-deep) 100%);
  color:#fff;border-color:transparent;
}
.matrix-feature p{color:rgba(255,255,255,.82);}
.matrix-feature h3{color:#fff;}
.matrix-feature .matrix-icon{background:rgba(45,212,191,.18);color:var(--cyan);}
.matrix-feature img{border-radius:var(--radius-sm);margin-top:6px;aspect-ratio:16/9;object-fit:cover;}
.matrix-icon{
  width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--green-soft);color:var(--green);font-size:19px;
  flex:0 0 auto;
}
.matrix-link{
  margin-top:auto;font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:8px;
}
.matrix-link i{transition:transform .2s ease;}
.matrix-card:hover .matrix-link i{transform:translateX(5px);}
.matrix-wide{
  grid-column:span 2;
  flex-direction:row;align-items:center;gap:22px;
}
.matrix-wide .matrix-body{display:flex;flex-direction:column;gap:10px;}

/* 对比 */
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.compare-col{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
}
.compare-col.is-primary{
  border-color:rgba(45,212,191,.5);
  background:linear-gradient(180deg,#FFFFFF 0%,#F2FBF8 100%);
}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.compare-tag{
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px;
  background:var(--green-soft);color:var(--green);
}
.compare-tag.is-hot{background:var(--orange);color:#fff;}
.compare-col .col-note{color:var(--muted);font-size:15px;margin-bottom:20px;}
.compare-item{padding:16px 0;border-top:1px solid var(--line);}
.compare-item:first-of-type{border-top:0;}
.compare-item-head{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:15.5px;font-weight:600;}
.compare-item-head .num{font-family:var(--mono);font-weight:700;}
.bar{height:8px;border-radius:99px;background:rgba(14,59,52,.08);margin-top:10px;overflow:hidden;}
.bar span{display:block;height:100%;border-radius:99px;background:var(--line-strong);}
.bar.is-cyan span{background:linear-gradient(90deg,var(--green),var(--cyan));}
.bar.is-orange span{background:linear-gradient(90deg,var(--orange),#FFB08A);}
.delta{
  font-family:var(--mono);font-size:13px;font-weight:700;color:#C2470F;
  background:var(--orange-soft);border-radius:6px;padding:2px 8px;
}

/* 资讯 */
.news-feature{
  display:grid;
  grid-template-columns:42% 58%;
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  margin-bottom:22px;
  transition:box-shadow .22s ease;
}
.news-feature:hover{box-shadow:var(--shadow-hover);}
.news-feature-media{display:block;overflow:hidden;background:var(--green-soft);}
.news-feature-media img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .35s ease;}
.news-feature:hover .news-feature-media img{transform:scale(1.04);}
.news-feature-body{padding:32px;display:flex;flex-direction:column;gap:14px;}
.news-feature-body h3 a{color:var(--ink);}
.news-feature-body h3 a:hover{color:var(--orange);}
.news-feature-body p{color:var(--muted);font-size:15.5px;}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:14px;color:var(--muted);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:8px;font-size:13px;font-weight:700;
}
.pill-green{background:var(--green-soft);color:var(--green);}
.pill-orange{background:var(--orange-soft);color:#C2470F;}

.news-list{display:grid;gap:16px;}
.news-item{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  transition:all .22s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.news-item img{width:100%;height:106px;object-fit:cover;border-radius:var(--radius-sm);}
.news-item-body{display:flex;flex-direction:column;gap:8px;}
.news-item-body h3{font-size:17px;}
.news-item-body h3 a{color:var(--ink);}
.news-item-body h3 a:hover{color:var(--orange);}
.news-item-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--green);
}
.link-arrow i{transition:transform .2s ease;}
a:hover .link-arrow i,
.link-arrow:hover i{transform:translateX(5px);}
.empty-state{
  background:var(--card);
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  padding:48px 24px;
  text-align:center;
  color:var(--muted);
}

/* 口碑 */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.trust-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px;
}
.trust-quote{font-size:15.5px;color:var(--ink);}
.trust-person{display:flex;align-items:center;gap:12px;margin-top:auto;}
.avatar{
  width:42px;height:42px;border-radius:50%;background:var(--green-soft);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.trust-person .name{font-size:15px;font-weight:700;}
.trust-person .role{font-size:13px;color:var(--muted);}
.stars{color:var(--orange);font-size:14px;letter-spacing:2px;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start;}
.faq-side p{color:var(--muted);margin-top:14px;}
.faq-side .btn{margin-top:24px;}
.faq-accordion{border-top:1px solid var(--line);}
.faq-accordion .accordion-item{border-bottom:1px solid var(--line);}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px 22px 16px;color:var(--ink);position:relative;
  border-left:3px solid transparent;transition:all .2s ease;
}
.faq-accordion .accordion-title:hover{color:var(--green);background:rgba(255,255,255,.6);}
.faq-accordion .accordion-title h3{font-size:17px;font-weight:700;}
.faq-accordion .accordion-title .faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title{border-left-color:var(--orange);color:var(--green);}
.faq-accordion .accordion-item.is-active .accordion-title .faq-icon{transform:rotate(180deg);background:var(--green);color:#fff;border-color:var(--green);}
.faq-accordion .accordion-content{display:none;padding:0 4px 24px 16px;max-width:720px;color:var(--muted);font-size:15.5px;}
.faq-accordion .accordion-item.is-active .accordion-content{display:block;}

/* 表单 */
.contact{
  background:linear-gradient(140deg,var(--green) 0%,var(--green-deep) 100%);
  border-radius:24px;
  padding:56px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
  color:#fff;
}
.contact h2{color:#fff;}
.contact .lead{color:rgba(255,255,255,.82);margin-top:16px;}
.contact-list{margin-top:26px;display:grid;gap:14px;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.85);font-size:15.5px;}
.contact-list i{color:var(--cyan);margin-top:5px;}
.form-card{
  background:#fff;border-radius:18px;padding:32px;box-shadow:0 20px 50px rgba(0,0,0,.18);
}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.form-row input,
.form-row select,
.form-row textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  font-size:15.5px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{min-height:104px;resize:vertical;}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;border-color:var(--green);
  box-shadow:0 0 0 3px rgba(255,107,44,.35);
}
.form-hint{font-size:13px;color:var(--muted);margin-top:6px;}
.form-error{font-size:14px;color:#C0392B;margin-top:6px;display:none;}
.form-success{
  display:none;background:rgba(45,212,191,.14);border:1px solid rgba(45,212,191,.5);
  color:#0E7C6E;border-radius:var(--radius-sm);padding:14px 16px;font-size:15px;font-weight:600;margin-bottom:18px;
}
.form-card .btn{width:100%;}

/* 页脚 */
.site-footer{background:var(--green-deep);color:rgba(246,244,239,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;font-size:19px;}
.footer-brand p{margin-top:16px;font-size:14.5px;color:rgba(246,244,239,.66);max-width:320px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(246,244,239,.72);font-size:14.5px;}
.footer-col a:hover{color:var(--orange);}
.qr-box{
  width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(246,244,239,.35);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:rgba(246,244,239,.5);text-align:center;margin-top:14px;padding:8px;
}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(246,244,239,.14);
  padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(246,244,239,.55);
}
.footer-bottom a{color:rgba(246,244,239,.7);}
.back-top{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  height:40px;padding:0 16px;border-radius:var(--radius-pill);font-size:14px;
}
.back-top:hover{background:var(--orange);color:#fff;border-color:var(--orange);}

/* 响应式 */
@media screen and (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);}
  .matrix{grid-template-columns:1fr 1fr;}
  .matrix-feature{grid-row:span 1;grid-column:span 2;}
  .matrix-wide{grid-column:span 2;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .contact{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .trust-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:768px){
  .section{padding:60px 0;}
  .container{padding:0 18px;}
  .compare{grid-template-columns:1fr;}
  .news-feature{grid-template-columns:1fr;}
  .news-feature-media img{min-height:200px;height:200px;}
  .news-feature-body{padding:24px;}
  .trust-grid{grid-template-columns:1fr;}
  .matrix{grid-template-columns:1fr;}
  .matrix-feature,.matrix-wide{grid-column:span 1;}
  .matrix-wide{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  body{font-size:16px;}
  .hero{padding:56px 0 64px;}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .kpi-grid{grid-template-columns:1fr;}
  .news-item{grid-template-columns:1fr;}
  .news-item img{height:160px;}
  .contact{padding:28px 20px;border-radius:18px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .header-phone{display:none;}
  .brand-name{font-size:17px;}
}

/* roulang page: article */
:root{
  --green:#0E3B34;
  --green-dark:#0B1F1C;
  --orange:#FF6B2C;
  --cyan:#2DD4BF;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#10201C;
  --muted:#5B6B66;
  --line:rgba(14,59,52,.12);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --shadow:0 10px 30px rgba(14,59,52,.08);
  --shadow-hover:0 16px 40px rgba(14,59,52,.12);
  --mono:"SFMono-Regular","JetBrains Mono","Roboto Mono",Consolas,monospace;
}
*,*::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 SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--green);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--orange);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.28;color:var(--ink);letter-spacing:.2px;}
h1{font-size:clamp(30px,4vw,48px);}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(19px,1.6vw,22px);}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;}
.container{width:min(1240px,calc(100% - 40px));margin:0 auto;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--green);letter-spacing:1px;text-transform:uppercase;margin-bottom:12px;}
.section-head .eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px;}
.section-head p{color:var(--muted);margin:0;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:12px;border:1px solid transparent;
  font-size:16px;font-weight:700;cursor:pointer;
  transition:all .2s ease;text-align:center;line-height:1;
}
.btn i{font-size:.95em;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(14,59,52,.18);}
.btn-primary:hover{background:var(--orange);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,107,44,.28);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--green);border-color:var(--line);}
.btn-outline:hover{background:var(--green);color:#fff;border-color:var(--green);}
.btn-ghost{background:transparent;color:var(--green);border-color:transparent;}
.btn-ghost:hover{background:rgba(45,212,191,.14);color:var(--green);}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px;border-radius:10px;}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0 12px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--green),#14574C);color:#fff;font-family:var(--mono);
  font-weight:700;font-size:17px;letter-spacing:.5px;flex:0 0 auto;box-shadow:0 6px 16px rgba(14,59,52,.24);
}
.brand-text{display:flex;flex-direction:column;}
.brand-name{font-size:19px;font-weight:800;color:var(--green);letter-spacing:.3px;line-height:1.3;}
.brand-sub{font-size:13px;color:var(--muted);letter-spacing:1.5px;}
.header-actions{display:flex;align-items:center;gap:18px;}
.header-phone{font-size:14px;color:var(--muted);font-family:var(--mono);}
.nav-chips{
  display:flex;gap:10px;padding:6px 0 14px;overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--green);font-size:15px;font-weight:600;
  transition:all .18s ease;white-space:nowrap;
}
.chip:hover{background:rgba(45,212,191,.14);color:var(--green);border-color:rgba(45,212,191,.5);}
.chip.is-active{background:var(--green);color:#fff;border-color:var(--green);box-shadow:0 6px 16px rgba(14,59,52,.2);}

/* ===== 文章头部 ===== */
.article-hero{
  position:relative;color:#fff;padding:64px 0 56px;
  background:var(--green-dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(11,31,28,.95) 0%,rgba(14,59,52,.88) 52%,rgba(14,59,52,.72) 100%);
}
.article-hero::after{
  content:"";position:absolute;right:-60px;bottom:-40px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,212,191,.28),transparent 68%);pointer-events:none;
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(246,244,239,.72);margin-bottom:26px;}
.breadcrumb a{color:rgba(246,244,239,.86);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .sep{color:rgba(246,244,239,.42);}
.breadcrumb .current{color:#fff;font-weight:700;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:8px;
  font-size:13px;font-weight:700;background:rgba(45,212,191,.16);color:#8CF2E4;border:1px solid rgba(45,212,191,.32);
}
.tag-solid{background:var(--orange);border-color:var(--orange);color:#fff;}
.article-hero h1{color:#fff;max-width:960px;margin-bottom:22px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:rgba(246,244,239,.78);}
.meta-row .pill{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font-size:13.5px;
}
.meta-row .pill i{color:var(--cyan);}
.meta-row .num{font-family:var(--mono);}

/* ===== 正文布局 ===== */
.article-layout{margin-left:-14px;margin-right:-14px;}
.article-layout > .cell{padding-left:14px;padding-right:14px;}
.article-main{padding-top:8px;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:44px 48px;
}
.article-content{max-width:820px;font-size:17.5px;color:#1A2C27;}
.article-content > *:first-child{margin-top:0;}
.article-content h2{
  font-size:clamp(22px,2.2vw,28px);margin:44px 0 16px;padding-left:16px;position:relative;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--orange),var(--cyan));
}
.article-content h3{font-size:20px;margin:32px 0 12px;color:var(--green);}
.article-content p{margin:0 0 1.1em;}
.article-content a{color:var(--green);font-weight:600;border-bottom:2px solid rgba(45,212,191,.5);}
.article-content a:hover{color:var(--orange);border-bottom-color:var(--orange);}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.2em;}
.article-content li{margin-bottom:.5em;}
.article-content img{border-radius:12px;margin:24px 0;box-shadow:var(--shadow);}
.article-content blockquote{
  margin:24px 0;padding:20px 24px;border-left:4px solid var(--orange);
  background:rgba(45,212,191,.08);border-radius:0 12px 12px 0;color:#243A34;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:16px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-content th{background:rgba(14,59,52,.06);font-weight:700;}
.article-content code{
  font-family:var(--mono);font-size:.92em;background:rgba(14,59,52,.07);
  padding:2px 6px;border-radius:6px;color:#0B4A3F;
}
.article-content pre{
  background:#0B1F1C;color:#D8F3EC;padding:20px;border-radius:12px;overflow-x:auto;font-size:15px;
}
.article-content pre code{background:none;color:inherit;padding:0;}
.article-content hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
.article-content figure{margin:24px 0;}
.article-content figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:8px;}

.empty-state{
  text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:rgba(14,59,52,.03);
}
.empty-state i{font-size:40px;color:var(--green);opacity:.5;margin-bottom:16px;}
.empty-state h2{font-size:24px;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:24px;}

/* ===== 侧栏 ===== */
.article-aside{margin-top:8px;}
.side-inner{position:sticky;top:150px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow);padding:24px;
}
.side-card h4{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h4 i{color:var(--orange);}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{border-bottom:1px dashed var(--line);padding:11px 0;font-size:15px;}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--ink);font-weight:600;}
.side-list a:hover{color:var(--orange);}
.side-list a i{font-size:12px;opacity:.55;transition:transform .18s ease;}
.side-list a:hover i{transform:translateX(3px);opacity:1;}
.side-card-dark{background:linear-gradient(160deg,var(--green),#0B2B26);border-color:transparent;color:#EAF6F2;}
.side-card-dark h4{color:#fff;}
.side-card-dark p{color:rgba(234,246,242,.82);font-size:15px;margin-bottom:16px;}

/* ===== 相关推荐 ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.related-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.related-thumb{aspect-ratio:16/9;overflow:hidden;background:#E7EDEA;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.related-body h3{font-size:19px;margin-bottom:10px;}
.related-body p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.related-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted);}
.related-foot .arrow{color:var(--green);font-weight:700;}
.related-foot .arrow i{transition:transform .18s ease;}
.related-card:hover .arrow i{transform:translateX(4px);}

/* ===== 底部 CTA ===== */
.cta-band{
  background:linear-gradient(120deg,var(--green-dark),var(--green));color:#fff;border-radius:var(--r-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,212,191,.26),transparent 70%);
}
.cta-band h2{color:#fff;margin-bottom:10px;position:relative;z-index:1;}
.cta-band p{color:rgba(234,246,242,.82);margin:0;position:relative;z-index:1;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.cta-actions .btn-outline:hover{background:#fff;color:var(--green);border-color:#fff;}

/* ===== 页脚 ===== */
.site-footer{background:var(--green-dark);color:rgba(246,244,239,.78);padding:72px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand-name{color:#fff;font-size:20px;display:block;margin-bottom:14px;}
.footer-brand p{font-size:15px;color:rgba(246,244,239,.72);max-width:340px;}
.qr-box{
  margin-top:18px;width:132px;height:132px;border:1px dashed rgba(255,255,255,.28);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;
  color:rgba(246,244,239,.6);padding:12px;line-height:1.6;
}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:11px;font-size:15px;}
.footer-col a{color:rgba(246,244,239,.78);}
.footer-col a:hover{color:var(--orange);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:14px;color:rgba(246,244,239,.6);}
.back-top{display:inline-flex;align-items:center;gap:8px;color:rgba(246,244,239,.85);font-weight:600;}
.back-top:hover{color:var(--orange);}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:64px 0;}
  .article-card{padding:34px 30px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .side-inner{position:static;}
  .article-aside{margin-top:40px;}
}
@media (max-width:768px){
  body{font-size:16.5px;}
  .header-phone{display:none;}
  .header-top{flex-wrap:wrap;gap:14px;}
  .article-hero{padding:44px 0 40px;}
  .article-card{padding:26px 20px;border-radius:var(--r-md);}
  .article-content{font-size:16.5px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 160px;}
}
@media (max-width:520px){
  .container{width:calc(100% - 28px);}
  .brand-name{font-size:17px;}
  .brand-sub{font-size:12px;letter-spacing:1px;}
  .chip{height:36px;padding:0 14px;font-size:14px;}
  .article-hero h1{font-size:27px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --green:#0E3B34;
  --green-deep:#0B1F1C;
  --orange:#FF6B2C;
  --cyan:#2DD4BF;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#10201C;
  --muted:#5B6B66;
  --line:rgba(14,59,52,.12);
  --line-strong:rgba(14,59,52,.22);
  --radius-lg:18px;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 10px 30px rgba(14,59,52,.08);
  --shadow-hover:0 16px 40px rgba(14,59,52,.12);
  --gap:28px;
  --section-y:88px;
  --mono:"SFMono-Regular","JetBrains Mono","Roboto Mono",Menlo,Consolas,monospace;
}
*,*::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 SC","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--green);text-decoration:none;transition:color .2s ease,background .2s ease;}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:800;color:var(--ink);letter-spacing:.2px;}
h1{font-size:clamp(30px,4.4vw,50px);}
h2{font-size:clamp(24px,2.8vw,34px);}
h3{font-size:20px;font-weight:700;}
h4{font-size:17px;font-weight:700;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-y) 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--green);background:rgba(45,212,191,.14);
  border:1px solid rgba(45,212,191,.35);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.eyebrow i{color:var(--orange);}
.muted{color:var(--muted);}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .18s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn i{font-size:14px;}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 20px rgba(14,59,52,.18);}
.btn-primary:hover{background:var(--orange);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,107,44,.28);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--green);border-color:var(--line-strong);}
.btn-outline:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--green);border-color:transparent;}
.btn-ghost:hover{background:rgba(45,212,191,.16);color:var(--green);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-lg{min-height:54px;padding:0 28px;font-size:16px;border-radius:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px 0 12px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;
  background:linear-gradient(140deg,var(--green) 0%,#14574b 100%);
  color:#fff;font-family:var(--mono);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(14,59,52,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:1.5px;}
.header-actions{display:flex;align-items:center;gap:16px;}
.header-phone{font-size:14px;color:var(--muted);white-space:nowrap;}
.nav-chips{
  display:flex;align-items:center;gap:10px;
  padding:0 0 14px;overflow-x:auto;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line-strong);
  color:var(--green);font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s ease;
}
.chip:hover{background:rgba(45,212,191,.18);color:var(--green);border-color:rgba(45,212,191,.5);transform:translateY(-1px);}
.chip.is-active{background:var(--green);border-color:var(--green);color:#fff;}
.chip.is-active:hover{background:var(--green-deep);color:#fff;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:">";color:var(--line-strong);font-size:12px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .current{color:var(--ink);font-weight:700;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:44px 0 0;}
.hero-card{
  position:relative;overflow:hidden;border-radius:24px;
  background-image:linear-gradient(115deg,rgba(11,31,28,.94) 0%,rgba(14,59,52,.86) 55%,rgba(14,59,52,.62) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:56px 56px 52px;
  box-shadow:0 24px 60px rgba(14,59,52,.24);
}
.hero-card::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:280px;height:280px;
  background-image:radial-gradient(rgba(45,212,191,.55) 1.5px,transparent 1.6px);
  background-size:14px 14px;opacity:.35;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(45,212,191,.18);border:1px solid rgba(45,212,191,.45);
  color:#DFFBF5;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:20px;
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero h1 span{color:var(--cyan);}
.hero-lead{font-size:18px;color:rgba(255,255,255,.86);max-width:700px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero .btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(255,107,44,.3);}
.hero .btn-primary:hover{background:#fff;color:var(--green);}
.hero .btn-outline{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4);}
.hero .btn-outline:hover{background:#fff;color:var(--green);border-color:#fff;}
.hero-note{margin-top:22px;font-size:14px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.hero-note i{color:var(--cyan);}

/* ---------- 指标条 ---------- */
.metrics{margin-top:-34px;position:relative;z-index:5;}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.metric{padding:26px 24px;border-right:1px solid var(--line);position:relative;}
.metric:last-child{border-right:none;}
.metric::before{
  content:"";position:absolute;top:14px;left:24px;right:24px;height:5px;
  background-image:linear-gradient(90deg,var(--line-strong) 1px,transparent 1px);
  background-size:9px 5px;opacity:.7;
}
.metric-value{font-family:var(--mono);font-size:34px;font-weight:700;color:var(--green);line-height:1.1;margin-top:14px;}
.metric-value small{font-size:15px;font-weight:600;margin-left:4px;color:var(--muted);}
.metric-label{font-size:14px;color:var(--muted);margin-top:8px;}
.metric-badge{
  display:inline-block;margin-top:12px;font-size:12px;font-weight:700;
  padding:3px 10px;border-radius:8px;background:rgba(45,212,191,.16);color:#0B7A6B;
}
.metric-badge.warn{background:rgba(255,107,44,.14);color:#C24A12;}

/* ---------- 卡片网格 ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(45,212,191,.45);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--green-deep);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .tag-float{
  position:absolute;left:14px;top:14px;
  background:rgba(11,31,28,.82);color:#DFFBF5;font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:var(--radius-pill);backdrop-filter:blur(4px);
}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}
.card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted);margin-bottom:14px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(14,59,52,.06);border:1px solid var(--line);
  color:var(--green);font-size:12.5px;font-weight:700;
  padding:4px 11px;border-radius:8px;
}
.pill.accent{background:rgba(255,107,44,.12);border-color:rgba(255,107,44,.3);color:#C24A12;}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--green);}
.card-link i{transition:transform .22s ease;font-size:13px;}
.card:hover .card-link{color:var(--orange);}
.card:hover .card-link i{transform:translateX(5px);}
.card-list{margin:0 0 16px;display:flex;flex-direction:column;gap:9px;}
.card-list li{display:flex;gap:10px;font-size:15px;color:#31423D;}
.card-list li i{color:var(--cyan);margin-top:5px;font-size:12px;flex:0 0 auto;}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-list{display:grid;gap:16px;margin-top:8px;}
.check-list li{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:0 6px 18px rgba(14,59,52,.05);}
.check-list .ico{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  background:rgba(45,212,191,.16);color:#0B7A6B;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.check-list strong{display:block;font-size:16px;margin-bottom:3px;}
.check-list span{font-size:14.5px;color:var(--muted);}

/* ---------- 深色统计/对比 ---------- */
.dark-band{
  background:var(--green-deep);color:#fff;border-radius:24px;
  padding:54px 48px;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));
}
.dark-band h2{color:#fff;}
.dark-band p{color:rgba(255,255,255,.78);}
.dark-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px;}
.dark-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:22px 22px 20px;}
.dark-item .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--cyan);}
.dark-item h3{color:#fff;font-size:17px;margin:10px 0 6px;}
.dark-item p{font-size:14.5px;color:rgba(255,255,255,.72);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:0.82fr 1.18fr;gap:48px;align-items:start;}
.faq-side p{color:var(--muted);}
.faq-side .btn{margin-top:12px;}
.accordion{border:none;background:transparent;}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  margin-bottom:14px;box-shadow:0 6px 18px rgba(14,59,52,.05);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion .accordion-item.is-active{border-color:rgba(255,107,44,.35);box-shadow:var(--shadow);}
.accordion .accordion-title{
  border:none;background:#fff;padding:20px 56px 20px 24px;
  font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.5;
  border-left:3px solid transparent;transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.accordion .accordion-title:hover{color:var(--green);background:rgba(45,212,191,.06);}
.accordion .accordion-item.is-active .accordion-title{border-left-color:var(--orange);color:var(--green);}
.accordion .accordion-title::before{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--muted);transition:transform .25s ease,color .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::before{transform:translateY(-50%) rotate(180deg);color:var(--orange);}
.accordion .accordion-content{padding:0 24px 22px;border:none;background:#fff;color:var(--muted);font-size:15.5px;}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;position:relative;box-shadow:0 6px 18px rgba(14,59,52,.05);}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--orange);
  display:inline-block;margin-bottom:12px;letter-spacing:1px;
}
.step h3{font-size:17px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(120deg,var(--green) 0%,#14574b 60%,#0B1F1C 100%);
  border-radius:24px;padding:52px 48px;color:#fff;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  background-image:radial-gradient(rgba(255,107,44,.5) 1.5px,transparent 1.6px);
  background-size:14px 14px;opacity:.35;
}
.cta h2{color:#fff;margin-bottom:12px;}
.cta p{color:rgba(255,255,255,.82);margin-bottom:0;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta .btn-primary{background:var(--orange);box-shadow:0 10px 24px rgba(255,107,44,.3);}
.cta .btn-primary:hover{background:#fff;color:var(--green);}
.cta .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.cta .btn-outline:hover{background:#fff;color:var(--green);border-color:#fff;}
.cta-tip{font-size:14px;color:rgba(255,255,255,.7);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green);color:#E7F1EE;margin-top:96px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:800;display:block;margin-bottom:12px;}
.footer-brand p{color:rgba(231,241,238,.72);font-size:14.5px;}
.qr-box{
  margin-top:18px;width:132px;height:132px;border-radius:var(--radius);
  border:1px dashed rgba(231,241,238,.4);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;color:rgba(231,241,238,.6);padding:10px;line-height:1.6;
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14.5px;color:rgba(231,241,238,.72);}
.footer-col a{color:rgba(231,241,238,.8);}
.footer-col a:hover{color:var(--orange);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(231,241,238,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(231,241,238,.62);
}
.back-top{display:inline-flex;align-items:center;gap:8px;color:rgba(231,241,238,.8);}
.back-top:hover{color:var(--orange);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section-y:68px;--gap:22px;}
  .hero-card{padding:44px 36px 40px;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric:nth-child(2){border-right:none;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line);}
  .split{grid-template-columns:1fr;gap:36px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .dark-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta{grid-template-columns:1fr;padding:42px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .header-phone{display:none;}
  .hero-card{padding:36px 24px 34px;border-radius:20px;}
  .hero-lead{font-size:16.5px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:1fr;}
  .metric{border-right:none;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:none;}
  .dark-band{padding:38px 26px;border-radius:20px;}
  .dark-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta{padding:34px 24px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:64px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand-sub{display:none;}
  .brand-mark{width:40px;height:40px;flex:0 0 40px;font-size:15px;}
  .brand-name{font-size:17px;}
  .hero-actions .btn{width:100%;}
  .card-body{padding:20px 18px 22px;}
  .accordion .accordion-title{font-size:15.5px;padding:18px 48px 18px 18px;}
}

/* roulang page: category2 */
:root{
  --green:#0E3B34;
  --green-soft:#E7F1EE;
  --orange:#FF6B2C;
  --cyan:#2DD4BF;
  --dark:#0B1F1C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#10201C;
  --muted:#5B6B66;
  --line:rgba(14,59,52,.12);
  --radius-s:8px;
  --radius:14px;
  --radius-l:18px;
  --shadow:0 10px 30px rgba(14,59,52,.08);
  --shadow-hover:0 16px 40px rgba(14,59,52,.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  --section-y:84px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:130px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius);}
a{color:var(--green);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--orange);}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;}
h1,h2,h3,h4{font-weight:800;color:var(--ink);margin:0;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.22;font-weight:800;}
h2{font-size:clamp(24px,2.9vw,34px);line-height:1.3;}
h3{font-size:clamp(18px,1.5vw,22px);line-height:1.4;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1260px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 24px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:16px;
  font-weight:700;
  line-height:1;
  min-height:48px;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{background:var(--orange);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-outline{background:#fff;color:var(--green);border-color:rgba(14,59,52,.24);}
.btn-outline:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--green);}
.btn-ghost:hover{background:var(--green-soft);color:var(--green);}
.btn-sm{padding:10px 18px;font-size:15px;min-height:44px;}
.btn-lg{padding:16px 30px;font-size:17px;min-height:54px;}
.btn-block{width:100%;justify-content:center;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0 10px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--green),#15564B);
  color:#fff;font-family:var(--font-mono);font-weight:700;font-size:16px;letter-spacing:.5px;
  box-shadow:var(--shadow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);}
.brand-sub{font-size:12.5px;color:var(--muted);letter-spacing:.04em;}
.header-actions{display:flex;align-items:center;gap:18px;}
.header-phone{font-size:14px;color:var(--muted);font-family:var(--font-mono);}
.nav-chips{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 0 14px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--green);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{background:var(--green-soft);border-color:rgba(14,59,52,.2);color:var(--green);}
.chip.is-active{background:var(--green);border-color:var(--green);color:#fff;box-shadow:var(--shadow);}

/* ============ 面包屑 ============ */
.breadcrumb{
  padding:18px 0 0;
  font-size:14px;
  color:var(--muted);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(14,59,52,.3);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .current{color:var(--green);font-weight:700;}

/* ============ 通用板块 ============ */
.section{padding:var(--section-y) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--orange);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px;}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px;margin-bottom:0;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  margin-top:26px;
  border-radius:22px;
  overflow:hidden;
  background-image:linear-gradient(100deg,rgba(11,31,28,.92) 0%,rgba(14,59,52,.86) 52%,rgba(14,59,52,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
  padding:58px 52px;
}
.page-hero h1{color:#fff;}
.page-hero h1 span{color:var(--cyan);}
.page-hero .lead{
  color:rgba(255,255,255,.82);
  font-size:18px;
  margin:16px 0 26px;
  max-width:560px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  font-size:13.5px;color:rgba(255,255,255,.9);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-actions .btn-outline{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35);}
.hero-actions .btn-outline:hover{background:#fff;color:var(--green);}
.hero-panel{
  background:rgba(255,255,255,.96);
  border-radius:var(--radius-l);
  padding:26px;
  box-shadow:0 20px 50px rgba(0,0,0,.24);
  color:var(--ink);
}
.hero-panel h3{font-size:17px;margin-bottom:6px;}
.hero-panel p{font-size:14px;color:var(--muted);margin-bottom:18px;}
.hero-panel-list li{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
}
.hero-panel-list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-panel-list .val{font-family:var(--font-mono);font-weight:700;color:var(--green);}
.hero-panel-list .val.up{color:#0f9b8e;}

/* ============ 布局：左目录 + 右内容 ============ */
.layout-side{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.side-nav{
  position:sticky;
  top:132px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:24px 20px;
  box-shadow:var(--shadow);
}
.side-nav h3{font-size:15px;color:var(--muted);font-weight:700;letter-spacing:.06em;margin-bottom:14px;}
.side-nav ul li+li{margin-top:4px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;
  border-radius:10px;
  font-size:15px;
  font-weight:600;
  color:var(--green);
  border-left:3px solid transparent;
}
.side-nav a::before{content:"›";color:var(--orange);font-weight:800;}
.side-nav a:hover{background:var(--green-soft);border-left-color:var(--orange);}
.side-nav .side-cta{
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.side-nav .side-cta p{font-size:13.5px;color:var(--muted);margin-bottom:12px;}

/* ============ 长内容 ============ */
.prose{max-width:820px;}
.prose h2{margin:44px 0 16px;}
.prose h2:first-child{margin-top:0;}
.prose h3{margin:30px 0 12px;color:var(--green);}
.prose p{color:#26332F;}
.prose ul.dot{margin:14px 0 20px;}
.prose ul.dot li{
  position:relative;
  padding-left:26px;
  margin-bottom:9px;
  color:#26332F;
}
.prose ul.dot li::before{
  content:"";
  position:absolute;
  left:6px;top:13px;
  width:8px;height:8px;
  border-radius:3px;
  background:var(--cyan);
}
.prose blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--green-soft);
  border-left:4px solid var(--green);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--green);
  font-weight:500;
}
.prose blockquote p:last-child{margin-bottom:0;}

/* ============ 卡片网格 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
  margin-top:32px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:26px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(14,59,52,.2);}
.card .icon-box{
  width:46px;height:46px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--green-soft);
  color:var(--green);
  font-size:19px;
  margin-bottom:16px;
}
.card h3{margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--muted);margin-bottom:0;}
.card .card-meta{
  display:flex;align-items:center;gap:10px;
  margin-top:18px;
  font-size:13.5px;
  color:var(--muted);
}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;
  border-radius:7px;
  font-size:12.5px;
  font-weight:700;
  background:var(--green-soft);
  color:var(--green);
}
.badge.orange{background:rgba(255,107,44,.12);color:#D9521B;}
.badge.cyan{background:rgba(45,212,191,.16);color:#0E7C71;}

/* ============ 对比 ============ */
.compare-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
  margin-top:36px;
}
.compare-col{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:28px;
  box-shadow:var(--shadow);
}
.compare-col.is-primary{
  background:linear-gradient(170deg,#0E3B34 0%,#0B1F1C 100%);
  color:#fff;
  border-color:transparent;
}
.compare-col h3{margin-bottom:6px;}
.compare-col.is-primary h3{color:#fff;}
.compare-col .sub{font-size:14px;color:var(--muted);margin-bottom:22px;}
.compare-col.is-primary .sub{color:rgba(255,255,255,.65);}
.metric-row{margin-bottom:20px;}
.metric-row:last-child{margin-bottom:0;}
.metric-top{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  font-size:14.5px;margin-bottom:8px;
}
.metric-top strong{font-weight:600;}
.metric-num{font-family:var(--font-mono);font-weight:700;}
.compare-col.is-primary .metric-top{color:rgba(255,255,255,.9);}
.compare-col.is-primary .metric-num{color:var(--cyan);}
.bar{height:8px;border-radius:99px;background:rgba(14,59,52,.1);overflow:hidden;}
.bar span{display:block;height:100%;border-radius:99px;background:rgba(14,59,52,.35);}
.compare-col.is-primary .bar{background:rgba(255,255,255,.14);}
.compare-col.is-primary .bar span{background:linear-gradient(90deg,var(--cyan),#7de3d6);}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:48px;
  align-items:start;
}
.faq-left h2{margin-bottom:16px;}
.faq-left p{color:var(--muted);font-size:16px;}
.faq-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  padding:8px 26px;
  box-shadow:var(--shadow);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;
  padding:20px 0 20px 14px;
  text-align:left;
  font-size:16.5px;
  font-weight:700;
  color:var(--ink);
  position:relative;
  transition:color .2s ease;
}
.faq-q::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;
  width:3px;border-radius:3px;
  background:var(--orange);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-q:hover{color:var(--green);}
.faq-q .chev{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--green-soft);color:var(--green);
  font-size:12px;
  transition:transform .25s ease,background-color .2s ease;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);background:var(--orange);color:#fff;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a-inner{
  padding:0 0 22px 14px;
  max-width:720px;
  color:var(--muted);
  font-size:15.5px;
}
.faq-a-inner p:last-child{margin-bottom:0;}

/* ============ 表单 ============ */
.contact-band{
  background:linear-gradient(150deg,#0E3B34 0%,#0B1F1C 100%);
  border-radius:24px;
  padding:56px 52px;
  color:#fff;
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:52px;
  align-items:start;
}
.contact-band h2{color:#fff;}
.contact-band .band-lead{color:rgba(255,255,255,.75);font-size:16.5px;margin-top:16px;}
.band-list{margin-top:26px;}
.band-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
  font-size:15.5px;
  color:rgba(255,255,255,.88);
}
.band-list li:last-child{border-bottom:0;}
.band-list i{color:var(--cyan);margin-top:5px;}
.form-card{
  background:#fff;
  border-radius:var(--radius-l);
  padding:32px;
  box-shadow:0 20px 50px rgba(0,0,0,.25);
  color:var(--ink);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14.5px;
  font-weight:700;
  color:var(--green);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid rgba(14,59,52,.2);
  border-radius:12px;
  padding:13px 15px;
  min-height:48px;
  background:#FCFBF8;
  color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input::placeholder,
.field textarea::placeholder{color:#9AA9A4;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--green);
  background:#fff;
  box-shadow:0 0 0 3px rgba(255,107,44,.45);
}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;}
.field .err{font-size:13.5px;color:#D93025;margin-top:6px;display:none;}
.field.has-error input,
.field.has-error textarea,
.field.has-error select{border-color:#D93025;}
.field.has-error .err{display:block;}
.form-success{
  display:none;
  margin-top:18px;
  padding:14px 18px;
  border-radius:12px;
  background:rgba(45,212,191,.16);
  color:#0E7C71;
  font-size:15px;
  font-weight:600;
}
.form-success.show{display:block;}

/* ============ CTA ============ */
.cta-strip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  padding:34px 40px;
  border-radius:20px;
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.cta-strip h3{margin-bottom:8px;}
.cta-strip p{margin:0;color:var(--muted);font-size:15.5px;}
.cta-strip .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--dark);
  color:rgba(255,255,255,.78);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-brand .brand-name{color:#fff;font-size:19px;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14.5px;color:rgba(255,255,255,.62);margin-bottom:20px;max-width:340px;}
.qr-box{
  width:132px;height:132px;
  border:1px dashed rgba(255,255,255,.28);
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  font-size:12.5px;
  color:rgba(255,255,255,.45);
  line-height:1.6;
  padding:14px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:18px;
  font-weight:700;
}
.footer-col ul li{margin-bottom:11px;font-size:14.5px;color:rgba(255,255,255,.62);}
.footer-col ul li a{color:rgba(255,255,255,.72);}
.footer-col ul li a:hover{color:var(--orange);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}
.back-top{color:rgba(255,255,255,.72);display:inline-flex;align-items:center;gap:8px;}
.back-top:hover{color:var(--orange);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  :root{--section-y:64px;}
  .page-hero-inner{grid-template-columns:1fr;padding:44px 36px;gap:32px;}
  .layout-side{grid-template-columns:1fr;gap:36px;}
  .side-nav{position:static;}
  .side-nav ul{display:flex;flex-wrap:wrap;gap:8px;}
  .side-nav ul li+li{margin-top:0;}
  .side-nav a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px;}
  .side-nav a::before{display:none;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .contact-band{grid-template-columns:1fr;padding:44px 34px;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media screen and (max-width:768px){
  body{font-size:16px;}
  .header-phone{display:none;}
  .brand-sub{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .compare-wrap{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px;}
  .page-hero-inner{padding:34px 24px;}
  .prose h2{margin-top:34px;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .brand-name{font-size:17px;}
  .brand-mark{width:40px;height:40px;flex-basis:40px;font-size:14px;}
  .header-top{gap:12px;padding:12px 0 8px;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-list{padding:4px 18px;}
  .faq-q{font-size:15.5px;padding:17px 0 17px 12px;}
  .contact-band{padding:30px 20px;border-radius:18px;}
  .form-card{padding:24px 20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --brand:#0E3B34;
  --brand-2:#12554A;
  --brand-3:#E4EFEA;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E8;
  --cyan:#2DD4BF;
  --dark:#0B1F1C;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#10201C;
  --muted:#5B6B66;
  --line:rgba(14,59,52,.12);
  --line-strong:rgba(14,59,52,.22);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(14,59,52,.08);
  --shadow-hover:0 16px 40px rgba(14,59,52,.12);
  --sect:96px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::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 SC","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:800;color:var(--ink);line-height:1.3;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4vw,52px);line-height:1.22;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(18px,1.6vw,22px);}
h4{font-size:17px;font-weight:700;}
p{margin:0 0 1em;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(255,107,44,.45);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sect) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{color:var(--muted);font-size:17px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-3);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0 12px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  background:linear-gradient(145deg,var(--brand),var(--brand-2));
  color:#fff;font-family:var(--mono);font-weight:700;
  display:flex;align-items:center;justify-content:center;font-size:16px;letter-spacing:.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:19px;font-weight:800;color:var(--brand);letter-spacing:-.01em;}
.brand-sub{font-size:12.5px;color:var(--muted);}
.header-actions{display:flex;align-items:center;gap:16px;}
.header-phone{font-size:14px;color:var(--muted);}
.nav-chips{
  display:flex;gap:10px;padding:0 0 14px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  font-size:15px;font-weight:600;white-space:nowrap;
}
.chip:hover{background:var(--brand-3);color:var(--brand);border-color:var(--line-strong);}
.chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 18px rgba(14,59,52,.18);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:12px;border:1px solid transparent;
  font-size:16px;font-weight:700;cursor:pointer;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:15px;border-radius:11px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(14,59,52,.18);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,107,44,.28);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line-strong);}
.btn-outline:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:transparent;}
.btn-ghost:hover{background:var(--brand-3);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:var(--accent);color:#fff;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0;}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:rgba(14,59,52,.32);}
.crumb .current{color:var(--ink);font-weight:700;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--dark);}
.hero-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,31,28,.96) 0%,rgba(14,59,52,.9) 46%,rgba(14,59,52,.62) 100%);
  z-index:1;
}
.hero-inner{position:relative;z-index:2;padding:72px 24px 84px;color:#fff;}
.hero-inner h1{color:#fff;max-width:860px;}
.hero-sub{font-size:19px;color:rgba(255,255,255,.86);max-width:620px;margin:14px 0 0;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-cta .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.hero-cta .btn-outline:hover{background:#fff;color:var(--brand);border-color:#fff;}
.hero-note{margin-top:22px;font-size:14px;color:rgba(255,255,255,.62);}
.page-hero .eyebrow{background:rgba(45,212,191,.16);color:#BFF6EC;border-color:rgba(45,212,191,.34);}

/* ---------- stat strip ---------- */
.stat-strip{margin-top:-38px;position:relative;z-index:5;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 20px;box-shadow:var(--shadow);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.stat-card::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:3px;
  background-image:repeating-linear-gradient(90deg,var(--cyan) 0 6px,transparent 6px 12px);
  opacity:.85;border-radius:3px;
}
.stat-value{font-family:var(--mono);font-size:34px;font-weight:700;color:var(--brand);line-height:1.1;margin-top:8px;}
.stat-value span{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px;}
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;font-weight:700;border-radius:7px;padding:3px 9px;
}
.badge-up{background:rgba(45,212,191,.16);color:#0F7A6C;}
.badge-warm{background:var(--accent-soft);color:#C24A12;}
.badge-line{background:var(--brand-3);color:var(--brand);}

/* ---------- module cards ---------- */
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.module-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.module-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.module-icon{
  width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-3);color:var(--brand);font-size:20px;margin-bottom:18px;
}
.module-card h3{margin-bottom:10px;}
.module-card p{color:var(--muted);font-size:15.5px;margin:0 0 18px;}
.module-fields{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.tag{
  font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-3);border-radius:7px;padding:4px 10px;
}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--brand);
}
.card-link i{transition:transform .2s ease;}
.card-link:hover{color:var(--accent);}
.card-link:hover i{transform:translateX(4px);}

/* ---------- steps ---------- */
.steps-wrap{background:#fff;border:1px solid var(--line);border-radius:22px;padding:44px 40px;box-shadow:var(--shadow);}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step;}
.step{position:relative;padding-top:46px;}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:0;left:0;
  font-family:var(--mono);font-size:15px;font-weight:700;
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
}
.step::after{
  content:"";position:absolute;top:17px;left:44px;right:-18px;height:1px;
  background:var(--line-strong);
}
.step:last-child::after{display:none;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}
.step:hover::before{background:var(--accent);}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{border-radius:var(--r-lg);padding:30px 28px;border:1px solid var(--line);}
.compare-col.old{background:#fff;color:var(--muted);}
.compare-col.new{background:linear-gradient(160deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent;box-shadow:var(--shadow-hover);}
.compare-col h3{margin-bottom:18px;}
.compare-col.new h3{color:#fff;}
.compare-col.old h3{color:var(--muted);}
.compare-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;font-size:15.5px;border-bottom:1px dashed rgba(14,59,52,.14);}
.compare-list li:last-child{border-bottom:0;}
.compare-col.new .compare-list li{border-bottom-color:rgba(255,255,255,.18);}
.compare-list i{margin-top:5px;font-size:14px;}
.compare-col.old i{color:rgba(14,59,52,.3);}
.compare-col.new i{color:var(--cyan);}
.bar{height:8px;border-radius:99px;background:rgba(14,59,52,.1);overflow:hidden;margin-top:10px;}
.bar span{display:block;height:100%;border-radius:99px;background:var(--accent);}
.compare-col.new .bar{background:rgba(255,255,255,.2);}
.compare-col.new .bar span{background:var(--cyan);}
.bar-label{display:flex;justify-content:space-between;font-size:13.5px;margin-top:18px;}
.compare-col.new .bar-label{color:rgba(255,255,255,.82);}

/* ---------- scene cards ---------- */
.scene-list{display:grid;gap:22px;}
.scene-card{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.scene-media{position:relative;min-height:220px;}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-body{padding:30px 32px;display:flex;flex-direction:column;}
.scene-body h3{margin-bottom:10px;}
.scene-body p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}
.scene-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;font-size:13.5px;color:var(--muted);}
.scene-meta .dot{color:rgba(14,59,52,.3);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:56px;align-items:start;}
.faq-aside p{color:var(--muted);font-size:15.5px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:transparent;transition:background-color .2s ease;
}
.faq-item.is-open::before{background:var(--accent);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 18px 22px 20px;min-height:64px;
}
.faq-q h3{margin:0;font-size:17.5px;font-weight:700;transition:color .2s ease;}
.faq-q:hover h3{color:var(--brand);}
.faq-q i{color:var(--brand);font-size:15px;transition:transform .25s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 60px 24px 20px;max-width:720px;color:var(--muted);font-size:15.5px;}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- form ---------- */
.contact-wrap{
  background:linear-gradient(150deg,var(--dark),var(--brand));
  border-radius:24px;padding:52px;display:grid;grid-template-columns:1fr 1fr;gap:48px;
  color:#fff;
}
.contact-intro h2{color:#fff;}
.contact-intro p{color:rgba(255,255,255,.8);font-size:16px;}
.contact-points{margin-top:26px;display:grid;gap:12px;}
.contact-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.85);}
.contact-points i{color:var(--cyan);margin-top:5px;}
.form-card{background:#fff;border-radius:18px;padding:30px;color:var(--ink);box-shadow:0 20px 50px rgba(0,0,0,.18);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14.5px;font-weight:700;margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:12px;
  padding:12px 14px;min-height:48px;background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,44,.28);
}
.field-hint{font-size:13px;color:var(--muted);margin-top:6px;}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:12px;
  background:rgba(45,212,191,.14);color:#0F7A6C;font-size:14.5px;font-weight:600;
}
.form-success.is-show{display:block;}
.form-card .btn{width:100%;}

/* ---------- cta band ---------- */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:36px 40px;box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:6px;font-size:26px;}
.cta-band p{margin:0;color:var(--muted);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);margin-top:var(--sect);padding:68px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:48px;}
.footer-brand .brand-name{color:#fff;font-size:20px;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14.5px;color:rgba(255,255,255,.66);max-width:320px;}
.qr-box{
  width:150px;height:150px;border:1px dashed rgba(255,255,255,.28);border-radius:14px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;color:rgba(255,255,255,.5);padding:12px;line-height:1.6;margin-top:20px;
}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;font-size:14.5px;color:rgba(255,255,255,.66);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:14px;color:rgba(255,255,255,.55);
}
.back-top{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.7);}
.back-top:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sect:76px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .module-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(3,1fr);}
  .step::after{display:none;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .contact-wrap{grid-template-columns:1fr;padding:40px;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .header-phone{display:none;}
  .hero-inner{padding:56px 24px 68px;}
  .hero-sub{font-size:17px;}
  .compare{grid-template-columns:1fr;}
  .scene-card{grid-template-columns:1fr;}
  .scene-media{min-height:200px;aspect-ratio:16/9;}
  .scene-body{padding:24px;}
  .steps-wrap{padding:30px 22px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  :root{--sect:56px;}
  .container{padding:0 16px;}
  .hero-inner{padding:44px 16px 56px;}
  .stat-grid{grid-template-columns:1fr;}
  .module-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .step{padding-top:0;padding-left:48px;min-height:44px;}
  .step::before{top:2px;}
  .faq-a-inner{padding:0 20px 22px 20px;}
  .contact-wrap{padding:26px 20px;border-radius:18px;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-cta .btn,.cta-actions .btn{width:100%;}
  .header-actions .btn-sm{width:auto;}
}