/* roulang page: index */
:root{
  --primary:#0B6E4F;
  --primary-dark:#08573E;
  --primary-light:#E8F3EE;
  --accent:#F48C06;
  --accent-hover:#D97C05;
  --gold:#D9A049;
  --bg:#F7F6F3;
  --dark:#122620;
  --text:#2E2E2E;
  --text-light:#6A6A6A;
  --text-weak:#8A8A8A;
  --border:#E5E5E5;
  --white:#FFFFFF;
  --radius-16:16px;
  --radius-12:12px;
  --radius-8:8px;
  --shadow-sm:0 2px 12px rgba(0,0,0,.06);
  --shadow:0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:0 8px 32px rgba(0,0,0,.12);
  --transition:.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{text-decoration:none;color:inherit;transition:color .2s;}
a:hover{color:var(--primary);}
ul,ol{list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media(min-width:1400px){
  .container{max-width:1320px;}
}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#222;letter-spacing:.5px;}
.btn{
  min-height:44px;
  border-radius:var(--radius-8);
  font-weight:600;
  font-size:15px;
  padding:.55rem 1.5rem;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  transition:all .2s ease;
  border:1.5px solid transparent;
}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff!important;
}
.btn-primary:hover{
  background:var(--primary-dark);
  border-color:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(11,110,79,.28);
}
.btn-accent{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff!important;
}
.btn-accent:hover{
  background:var(--accent-hover);
  border-color:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(244,140,6,.3);
}
.btn-outline-primary{
  background:transparent;
  border:1.5px solid var(--primary);
  color:var(--primary);
}
.btn-outline-primary:hover{
  background:var(--primary);
  color:#fff;
}
.btn-outline-light{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.6);
  color:#fff;
}
.btn-outline-light:hover{
  background:#fff;
  color:var(--dark);
}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:transparent;
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
  padding:16px 0;
}
.site-header.scrolled{
  background:var(--bg);
  box-shadow:0 2px 24px rgba(0,0,0,.08);
  padding:8px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{
  width:40px;height:40px;border-radius:50%;
  background:var(--primary);
  display:flex;align-items:center;justify-content:center;
  color:#fff;flex-shrink:0;
}
.brand-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:1px;
  color:#222;
  white-space:nowrap;
}
.site-header.scrolled .brand-text{color:#222;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-chip{
  padding:8px 18px;
  border-radius:50px;
  font-size:14px;
  font-weight:600;
  color:var(--text);
  transition:all .2s;
  white-space:nowrap;
}
.nav-chip:hover{
  background:var(--primary-light);
  color:var(--primary);
}
.nav-chip.active{
  background:var(--primary);
  color:#fff;
}
.btn-nav{
  min-height:40px;
  padding:.4rem 1.25rem;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;height:42px;
  border:none;
  background:transparent;
  cursor:pointer;
  flex-shrink:0;
  border-radius:8px;
  transition:background .2s;
}
.nav-toggle:hover{background:rgba(0,0,0,.04);}
.nav-toggle span{
  display:block;
  width:22px;height:2px;
  background:#222;
  border-radius:2px;
  transition:all .25s ease;
  margin:0 auto;
}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* 移动端菜单 */
.mobile-menu{
  position:fixed;
  top:0;left:0;right:0;
  background:var(--bg);
  padding:90px 24px 24px;
  z-index:999;
  transform:translateY(-100%);
  transition:transform .35s ease;
  box-shadow:0 20px 40px rgba(0,0,0,.1);
  max-height:100vh;
  overflow-y:auto;
}
.mobile-menu.open{transform:translateY(0);}
.mobile-menu-item{
  display:block;
  padding:15px 0;
  font-size:18px;
  font-weight:600;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.mobile-menu-item:hover{color:var(--primary);}
.mobile-menu-item.active{color:var(--primary);}
.mobile-menu-cta{
  margin-top:20px;
  width:100%;
}
/* ===== Hero ===== */
.hero{
  position:relative;
  padding:150px 0 80px;
  background:
    linear-gradient(180deg, #EAF3EE 0%, var(--bg) 60%);
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  top:0;right:0;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(11,110,79,.08) 0%, transparent 70%);
  pointer-events:none;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:18px;
}
.badge-item{
  background:var(--white);
  border-radius:50px;
  padding:7px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  box-shadow:var(--shadow-sm);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.badge-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
  flex-shrink:0;
}
.hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.25;
  color:#1A1A1A;
  margin-bottom:18px;
  letter-spacing:1px;
}
.hero-sub{
  font-size:18px;
  color:var(--text-light);
  line-height:1.7;
  margin-bottom:32px;
  max-width:460px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:36px;
}
.hero-image{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.hero-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:360px;
}
.hero-image::after{
  content:'';
  position:absolute;
  bottom:0;left:0;
  width:100%;height:4px;
  background:var(--accent);
}
.hero-stats{
  display:flex;
  gap:30px;
  flex-wrap:wrap;
}
.hero-stat-item .hero-stat-num{
  font-family:Arial,Helvetica,sans-serif;
  font-size:30px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
}
.hero-stat-item .hero-stat-label{
  font-size:13px;
  color:var(--text-weak);
}
/* ===== 通用板块间距 ===== */
.section-spacing{padding:96px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:48px;
  flex-wrap:wrap;
}
.section-title{
  font-size:32px;
  font-weight:700;
  color:#222;
  margin-bottom:10px;
  padding-left:16px;
  position:relative;
  line-height:1.3;
}
.section-title::before{
  content:'';
  position:absolute;
  left:0;top:3px;
  width:4px;height:28px;
  border-radius:2px;
  background:var(--primary);
}
.section-desc{
  font-size:15px;
  color:var(--text-light);
  max-width:560px;
  line-height:1.7;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:gap .2s;
}
.link-more:hover{gap:8px;color:var(--primary-dark);}
/* ===== 服务板块 ===== */
.services-section{background:var(--bg);}
.service-main-card{
  background:linear-gradient(135deg, var(--dark) 0%, #1B3B2F 100%);
  border-radius:var(--radius-16);
  padding:36px;
  color:#fff;
  height:100%;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
}
.service-main-card .service-card-img{
  position:absolute;
  right:-10px;bottom:-10px;
  width:60%;
  height:60%;
  object-fit:cover;
  opacity:.25;
  border-radius:16px;
}
.service-main-card h3{
  color:#fff;
  font-size:24px;
  font-weight:700;
  margin-bottom:10px;
  position:relative;
}
.service-main-card p{
  color:rgba(255,255,255,.8);
  font-size:15px;
  position:relative;
  margin-bottom:20px;
}
.service-points{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:auto;
}
.service-point{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.92);
  padding:8px 14px;
  background:rgba(255,255,255,.08);
  border-radius:8px;
}
.service-point svg{flex-shrink:0;}
.service-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-16);
  padding:28px;
  transition:all var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.service-card:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-lg);
  transform:translateY(-3px);
}
.service-icon{
  width:48px;height:48px;
  border-radius:12px;
  background:#F0F0F0;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  color:var(--primary);
  transition:background .3s;
}
.service-card:hover .service-icon{
  background:var(--primary-light);
}
.service-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:8px;
}
.service-card p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.65;
  margin-bottom:14px;
}
.service-points-light{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-top:auto;
}
.service-point-light{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text);
}
.service-point-light svg{flex-shrink:0;color:var(--primary);}
/* ===== 数据板块 ===== */
.data-section{
  background:var(--dark);
  padding:96px 0;
  position:relative;
  color:#fff;
}
.data-section::before{
  content:'';
  display:block;
  height:2px;
  background:repeating-linear-gradient(to right, rgba(217,160,73,.4) 0 14px, transparent 14px 28px);
  margin-bottom:56px;
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.data-item{
  text-align:center;
  position:relative;
}
.data-item::after{
  content:'';
  position:absolute;
  right:0;top:50%;
  transform:translateY(-50%);
  width:1px;height:48px;
  background:rgba(255,255,255,.15);
}
.data-item:last-child::after{display:none;}
.data-num{
  font-family:Arial,Helvetica,sans-serif;
  font-size:48px;
  font-weight:800;
  color:var(--gold);
  line-height:1.1;
  margin-bottom:8px;
}
.data-label{
  font-size:14px;
  color:rgba(255,255,255,.75);
}
@media(max-width:768px){
  .data-grid{grid-template-columns:repeat(2,1fr);gap:30px 15px;}
  .data-item::after{display:none;}
}
/* ===== 案例板块 ===== */
.cases-section{background:var(--bg);}
.case-card{
  border-radius:var(--radius-16);
  overflow:hidden;
  background:var(--white);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s;
  margin-bottom:24px;
}
.case-card:hover{
  box-shadow:var(--shadow-lg);
}
.case-card-img{
  overflow:hidden;
  border-radius:var(--radius-16) var(--radius-16) 0 0;
}
.case-card-img img{
  width:100%;
  height:220px;
  object-fit:cover;
  transition:transform .4s ease;
}
.case-card:hover .case-card-img img{
  transform:scale(1.03);
}
.case-card-body{
  padding:24px;
}
.case-tag{
  display:inline-block;
  background:var(--primary-light);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  border-radius:4px;
  padding:3px 8px;
  margin-bottom:10px;
}
.case-card-title{
  font-size:18px;
  font-weight:700;
  margin-bottom:8px;
  color:#222;
}
.case-card-metric{
  font-family:Arial,Helvetica,sans-serif;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
}
.cases-right{
  margin-top:48px;
}
.case-card-lg .case-card-img img{height:280px;}
@media(max-width:992px){
  .cases-right{margin-top:0;}
}
/* ===== 流程时间线 ===== */
.process-section{
  background:var(--white);
  padding:96px 0;
}
.process-wrap{
  background:var(--bg);
  border:1px solid #D9E8E1;
  border-radius:20px;
  padding:48px;
}
.timeline{
  position:relative;
  padding-left:52px;
}
.timeline::before{
  content:'';
  position:absolute;
  left:19px;top:8px;bottom:8px;
  width:2px;
  background:repeating-linear-gradient(to bottom, var(--primary) 0 8px, transparent 8px 16px);
}
.timeline-item{
  position:relative;
  margin-bottom:32px;
}
.timeline-item:last-child{margin-bottom:0;}
.timeline-dot{
  position:absolute;
  left:-52px;top:2px;
  width:40px;height:40px;
  border-radius:50%;
  background:var(--gold);
  color:#fff;
  font-family:Arial,Helvetica,sans-serif;
  font-weight:800;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 12px rgba(217,160,73,.4);
}
.timeline-item h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:6px;
}
.timeline-item p{
  font-size:15px;
  color:var(--text-light);
  line-height:1.7;
  margin-bottom:0;
}
@media(max-width:992px){
  .process-wrap{padding:32px;}
}
/* ===== 资讯列表 ===== */
.news-section{background:var(--bg);}
.news-card{
  display:flex;
  align-items:stretch;
  background:var(--white);
  border-radius:var(--radius-12);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s, transform .2s;
  margin-bottom:20px;
}
.news-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-2px);
}
.news-card-img{
  width:280px;
  flex-shrink:0;
  overflow:hidden;
}
.news-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:160px;
}
.news-card-body{
  flex:1;
  padding:24px 28px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.news-tag{
  display:inline-block;
  background:var(--primary);
  color:#fff;
  font-size:12px;
  font-weight:600;
  border-radius:4px;
  padding:3px 10px;
  margin-bottom:10px;
  width:fit-content;
}
.news-card-title{
  font-size:20px;
  font-weight:700;
  margin-bottom:8px;
  line-height:1.45;
}
.news-card-title a{
  color:#222;
  transition:color .2s;
}
.news-card-title a:hover{color:var(--primary);}
.news-card-desc{
  font-size:14px;
  color:var(--text-light);
  line-height:1.65;
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-weak);
}
.news-read-more{
  color:var(--primary);
  font-weight:600;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:3px;
}
.news-read-more:hover{gap:6px;color:var(--primary-dark);}
.news-empty{
  background:var(--white);
  border:1px dashed var(--border);
  border-radius:var(--radius-12);
  padding:60px 24px;
  text-align:center;
  color:var(--text-weak);
}
.news-empty svg{
  width:44px;height:44px;
  color:#B8C4BF;
  margin-bottom:12px;
}
.news-empty p{font-size:15px;margin:0;}
@media(max-width:768px){
  .news-card{flex-direction:column;}
  .news-card-img{width:100%;min-height:180px;}
  .news-card-img img{min-height:180px;}
}
/* ===== FAQ ===== */
.faq-section{
  background:#F0F5F2;
  padding:96px 0;
}
.accordion-item{
  background:var(--white);
  border:1px solid var(--border)!important;
  border-radius:var(--radius-12)!important;
  margin-bottom:12px;
  box-shadow:none;
  overflow:hidden;
}
.accordion-button{
  background:var(--white);
  font-size:16px;
  font-weight:700;
  color:var(--text);
  padding:20px 24px;
  border-radius:var(--radius-12)!important;
  box-shadow:none!important;
  transition:all .2s;
}
.accordion-button:not(.collapsed){
  background:var(--white);
  color:var(--primary);
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='currentColor' class='bi bi-plus-lg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0a1 1 0 0 1 1 1v6h6a1 1 0 1 1 0 2H9v6a1 1 0 1 1-2 0V9H1a1 1 0 0 1 0-2h6V1a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
  width:20px;height:20px;
  transition:transform .25s;
  border-radius:6px;
  background-color:var(--primary-light);
  background-size:12px;
  background-position:center;
  background-repeat:no-repeat;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background-color:var(--primary);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-plus-lg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0a1 1 0 0 1 1 1v6h6a1 1 0 1 1 0 2H9v6a1 1 0 1 1-2 0V9H1a1 1 0 0 1 0-2h6V1a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
}
.accordion-button:focus{
  box-shadow:none!important;
  border-color:var(--primary)!important;
}
.accordion-body{
  padding:0 24px 24px;
  border-left:3px solid var(--primary);
  border-radius:0 0 0 6px;
  margin:0 24px 16px 0;
  font-size:15px;
  color:var(--text-light);
  line-height:1.7;
}
/* ===== 联系板块 ===== */
.contact-section{
  background:linear-gradient(135deg, var(--primary) 0%, #06402F 100%);
  padding:96px 0;
}
.contact-card{
  background:var(--white);
  border-radius:20px;
  padding:48px;
  box-shadow:var(--shadow-lg);
}
.contact-info h3{
  font-size:28px;
  font-weight:800;
  color:#222;
  margin-bottom:16px;
}
.contact-info p{
  font-size:15px;
  color:var(--text-light);
  margin-bottom:24px;
  line-height:1.75;
}
.contact-method{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
  font-size:15px;
  color:var(--text);
}
.contact-method svg{
  color:var(--primary);
  flex-shrink:0;
}
.contact-form .form-label{
  font-size:14px;
  font-weight:600;
  color:#444;
  margin-bottom:6px;
}
.contact-form .form-control,
.contact-form .form-select{
  border:1px solid #D8D8D8;
  border-radius:var(--radius-8);
  min-height:44px;
  font-size:14px;
  padding:.5rem .8rem;
  background:var(--white);
  transition:border-color .2s, box-shadow .2s;
}
.contact-form .form-control:focus,
.contact-form .form-select:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 .2rem rgba(11,110,79,.15);
  outline:none;
}
.contact-form textarea.form-control{
  min-height:100px;
  resize:vertical;
}
.btn-submit{
  background:var(--accent);
  border:none;
  color:#fff;
  font-weight:700;
  min-height:44px;
  border-radius:var(--radius-8);
  padding:.6rem 2rem;
  transition:all .2s;
  width:100%;
}
.btn-submit:hover{
  background:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(244,140,6,.3);
}
.btn-submit.btn-success{
  background:var(--primary)!important;
  color:#fff!important;
}
/* ===== Footer ===== */
.site-footer{
  background:var(--dark);
  padding:64px 0 0;
  color:rgba(255,255,255,.8);
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.2fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand-icon{
  width:40px;height:40px;
  border-radius:50%;
  background:var(--primary);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
}
.footer-brand-text{
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:1px;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-title{
  font-size:16px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
  position:relative;
  padding-bottom:8px;
}
.footer-title::after{
  content:'';
  position:absolute;
  left:0;bottom:0;
  width:24px;height:2px;
  background:var(--gold);
  border-radius:1px;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:rgba(255,255,255,.65);
  font-size:14px;
  transition:color .2s, padding-left .2s;
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-bottom:12px;
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.footer-contact svg{
  flex-shrink:0;
  color:var(--gold);
  margin-top:3px;
}
.footer-btn{
  margin-top:16px;
  display:inline-flex;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  font-size:13px;
  color:rgba(255,255,255,.4);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
@media(max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .mobile-menu{display:block;}
}
@media(max-width:768px){
  .section-spacing{padding:64px 0;}
  .data-section{padding:64px 0;}
  .faq-section{padding:64px 0;}
  .contact-section{padding:64px 0;}
  .process-section{padding:64px 0;}
  .hero{padding:120px 0 60px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .section-title{font-size:26px;}
  .contact-card{padding:28px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .main-nav,.btn-nav{display:none;}
  .nav-toggle{display:flex;}
}
@media(max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-badges{justify-content:flex-start;}
  .hero h1{font-size:28px;}
  .hero-btns .btn{width:100%;margin-bottom:4px;}
  .news-card-body{padding:18px;}
  .process-wrap{padding:24px;}
  .timeline{padding-left:44px;}
  .timeline-dot{left:-44px;width:36px;height:36px;font-size:14px;}
}

/* roulang page: category1 */
:root {
            --primary: #0B6E4F;
            --primary-dark: #0A5D41;
            --primary-light: #E8F4EE;
            --accent: #F48C06;
            --accent-dark: #E07E05;
            --gold: #D9A049;
            --bg: #F7F6F3;
            --dark: #122620;
            --text: #2D3748;
            --text-light: #667085;
            --border: #E5E7EB;
            --white: #FFFFFF;
            --radius: 16px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            letter-spacing: 0.2px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            background: rgba(255, 255, 255, 0.98);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.6px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            gap: 6px;
            margin: 0 16px;
        }

        .nav-chip {
            padding: 10px 22px;
            border-radius: 100px;
            font-size: 15px;
            font-weight: 500;
            color: #333;
            text-decoration: none;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-chip:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-chip.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .btn-nav {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 10px;
            cursor: pointer;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--dark);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Buttons ===== */
        .btn {
            min-height: 44px;
            border-radius: 100px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all 0.2s ease;
            border: none;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(11, 110, 79, 0.25);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(244, 140, 6, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            border: 1.5px solid #fff;
            color: #fff;
        }

        .btn-outline-light:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;
        }

        .banner-overlay {
            position: absolute;
            inset: 0;
            background: rgba(18, 38, 32, 0.62);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 60px;
        }

        .banner-content h1 {
            color: #fff;
            font-size: 44px;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.2;
            margin: 0 0 16px;
        }

        .banner-breadcrumb {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            letter-spacing: 0.5px;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }

        .banner-breadcrumb a:hover {
            color: #fff;
        }

        .banner-breadcrumb .sep {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: 96px 0;
        }

        .section-title-wrap {
            margin-bottom: 48px;
        }

        .section-title-wrap h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: 0.8px;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 14px;
            margin: 0;
        }

        .section-title-wrap h2::before {
            content: "";
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            margin-top: 12px;
            max-width: 720px;
            line-height: 1.75;
        }

        /* ===== Intro ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .intro-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .intro-text .btn {
            margin-top: 12px;
        }

        .intro-image {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .intro-image::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
        }

        .intro-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        /* ===== Capabilities ===== */
        .capabilities-section {
            background: var(--white);
        }

        .cap-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .cap-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
            transition: all 0.3s ease;
        }

        .cap-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
            transform: translateY(-4px);
        }

        .cap-icon {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
            transition: background 0.3s ease;
        }

        .cap-card:hover .cap-icon {
            background: var(--primary);
            color: #fff;
        }

        .cap-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }

        .cap-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--dark);
            padding: 96px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: repeating-linear-gradient(90deg, var(--gold) 0 12px, transparent 12px 24px);
            opacity: 0.5;
        }

        .stats-title {
            text-align: center;
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 48px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 20px 10px;
            position: relative;
        }

        .stat-item+.stat-item::before {
            content: "";
            position: absolute;
            left: -10px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 60px;
            background: rgba(255, 255, 255, 0.15);
        }

        .stat-number {
            font-family: Arial, Helvetica, sans-serif;
            font-size: 48px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
            display: block;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 8px;
            letter-spacing: 0.5px;
        }

        /* ===== Detail ===== */
        .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .detail-image {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }

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

        .detail-content h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .detail-content p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .detail-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
        }

        .detail-list li svg {
            flex-shrink: 0;
            margin-top: 4px;
            color: var(--primary);
        }

        /* ===== Scenarios ===== */
        .scenarios-section {
            background: var(--white);
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .scenario-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .scenario-card:hover {
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .scenario-img {
            overflow: hidden;
            height: 220px;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .scenario-card:hover .scenario-img img {
            transform: scale(1.05);
        }

        .scenario-body {
            padding: 28px;
        }

        .scenario-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .scenario-body p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        .scenario-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            margin-top: 16px;
        }

        /* ===== Process Timeline ===== */
        .process-section {
            background: var(--bg);
        }

        .process-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .process-left h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .process-left h2::before {
            content: "";
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }

        .process-left p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .timeline-wrapper {
            background: var(--bg);
            border: 1px solid rgba(11, 110, 79, 0.15);
            border-radius: 24px;
            padding: 40px;
        }

        .timeline {
            position: relative;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 22px;
            top: 0;
            bottom: 0;
            width: 2px;
            border-left: 2px dashed var(--primary);
        }

        .timeline-item {
            position: relative;
            padding-left: 64px;
            padding-bottom: 36px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-node {
            position: absolute;
            left: 12px;
            top: 4px;
            width: 24px;
            height: 24px;
            background: var(--gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 11px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 0 0 6px rgba(217, 160, 73, 0.2);
        }

        .timeline-item h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #F0F5F2;
            padding: 96px 0;
        }

        .faq-section .section-title-wrap h2 {
            color: var(--dark);
        }

        .accordion-item {
            background: var(--white);
            border: none;
            border-radius: 12px !important;
            margin-bottom: 12px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            overflow: hidden;
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            padding: 20px 24px;
            background: var(--white);
            border: none;
            outline: none;
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--white);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            border-radius: 50%;
            transform: none;
            transition: all 0.3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .accordion-body {
            padding: 4px 24px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
            border-left: 3px solid var(--primary);
            margin: 0 24px;
            border-radius: 0;
            padding-left: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #064A36 100%);
            padding: 96px 0;
        }

        .cta-card {
            background: var(--white);
            border-radius: 24px;
            padding: 48px;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
        }

        .cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-left p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .cta-contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .cta-contact-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--text);
        }

        .cta-contact-list li svg {
            color: var(--primary);
            flex-shrink: 0;
        }

        .form-label {
            font-size: 14px;
            font-weight: 500;
            color: #4A4A4A;
            margin-bottom: 6px;
        }

        .form-control {
            border: 1px solid #D8D8D8;
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 15px;
            min-height: 46px;
            transition: all 0.2s ease;
            background: var(--white);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(11, 110, 79, 0.1);
            outline: none;
        }

        textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }

        .btn-submit {
            width: 100%;
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .btn-submit:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(244, 140, 6, 0.35);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 0;
            font-size: 15px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.6px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-contact li svg {
            color: var(--gold);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Mobile Responsive ===== */
        @media (max-width: 992px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 24px;
                gap: 8px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
                border-bottom: 1px solid var(--border);
                margin: 0;
                z-index: 1040;
            }

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

            .nav-chip {
                padding: 14px 20px;
                text-align: center;
                width: 100%;
                font-size: 16px;
            }

            .btn-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-banner {
                min-height: 240px;
            }

            .banner-content h1 {
                font-size: 32px;
            }

            .section-block,
            .stats-section,
            .faq-section,
            .cta-section {
                padding: 64px 0;
            }

            .intro-grid,
            .detail-grid,
            .process-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .cap-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item+.stat-item::before {
                display: none;
            }

            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .cta-card {
                padding: 32px 24px;
            }

            .timeline-wrapper {
                padding: 32px 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 600px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

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

            .banner-content h1 {
                font-size: 24px;
            }

            .section-title-wrap h2 {
                font-size: 24px;
                flex-wrap: wrap;
                gap: 10px;
            }

            .section-title-wrap h2::before {
                height: 22px;
            }

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

            .stat-number {
                font-size: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .btn {
                padding: 10px 20px;
                font-size: 14px;
            }

            .detail-image img {
                height: 260px;
            }

            .intro-image img {
                height: 240px;
            }
        }

        @media (max-width: 400px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }

            .cta-card {
                padding: 24px 16px;
            }
        }

/* roulang page: article */
:root {
            --green: #0B6E4F;
            --green-dark: #09543C;
            --green-light: #E8F3EF;
            --orange: #F48C06;
            --orange-dark: #C97800;
            --gold: #D9A049;
            --paper: #F7F6F3;
            --dark: #122620;
            --text: #2D2D2D;
            --text-light: #6B6B6B;
            --border: #E5E5E5;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: var(--green);
            transition: color 0.2s;
        }

        a:hover {
            color: var(--green-dark);
        }

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

        .btn {
            border-radius: 8px;
            font-weight: 600;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 28px;
            border: none;
            transition: all 0.2s ease;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--green) !important;
            border-color: var(--green) !important;
            color: #fff !important;
        }

        .btn-primary:hover {
            background: var(--green-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 110, 79, 0.25);
        }

        .btn-accent {
            background: var(--orange) !important;
            border-color: var(--orange) !important;
            color: #fff !important;
        }

        .btn-accent:hover {
            background: var(--orange-dark) !important;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(244, 140, 6, 0.3);
            color: #fff !important;
        }

        .btn-outline {
            background: transparent !important;
            border: 1.5px solid var(--green) !important;
            color: var(--green) !important;
        }

        .btn-outline:hover {
            background: var(--green) !important;
            color: #fff !important;
            transform: translateY(-2px);
        }

        .btn:focus {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
            box-shadow: none;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--dark);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(247, 246, 243, 0.96);
            box-shadow: 0 2px 24px rgba(18, 38, 32, 0.12);
            backdrop-filter: blur(8px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--green);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: color 0.3s;
        }

        .site-header.scrolled .brand-text {
            color: var(--dark);
        }

        .main-nav {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.82);
            text-decoration: none;
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }

        .site-header.scrolled .nav-chip {
            color: var(--text);
        }

        .nav-chip:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .site-header.scrolled .nav-chip:hover {
            background: var(--green-light);
            color: var(--green);
        }

        .nav-chip.active {
            background: var(--green);
            color: #fff;
        }

        .site-header.scrolled .nav-chip.active {
            color: #fff;
        }

        .btn-nav {
            min-height: 44px;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 15px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            width: 44px;
            height: 44px;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            padding: 0;
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .site-header.scrolled .nav-toggle span {
            background: var(--dark);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        main {
            padding-top: 76px;
        }

        .article-breadcrumb-wrap {
            background: var(--dark);
            padding: 28px 0 0;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb-custom a:hover {
            color: var(--gold);
        }

        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb-custom .current {
            color: rgba(255, 255, 255, 0.9);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 360px;
        }

        .article-section {
            background: var(--paper);
            padding: 48px 0 64px;
        }

        .article-wrap {
            background: #fff;
            border-radius: 20px;
            padding: 56px 64px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(0, 0, 0, 0.03);
        }

        .article-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
            font-size: 14px;
            color: var(--text-light);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: var(--green);
            font-size: 13px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.75;
            color: #4A4A4A;
        }

        .article-content p {
            margin-bottom: 24px;
        }

        .article-content h1,
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--dark);
            margin-top: 44px;
            margin-bottom: 20px;
            padding-left: 14px;
            border-left: 4px solid var(--green);
            border-radius: 2px;
            letter-spacing: 0.5px;
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 600;
            color: var(--dark);
            margin-top: 32px;
            margin-bottom: 14px;
        }

        .article-content h4,
        .article-content h5 {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark);
            margin-top: 28px;
            margin-bottom: 12px;
        }

        .article-content img {
            border-radius: 12px;
            max-width: 100%;
            height: auto;
            margin: 28px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--green);
            background: #F0F5F2;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
            font-size: 15px;
            color: #555;
            font-style: normal;
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 24px;
            padding-left: 1.5rem;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content li::marker {
            color: var(--green);
        }

        .article-content a {
            color: var(--green);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            background: #F8F9F8;
            border-radius: 12px;
            overflow: hidden;
        }

        .article-content th,
        .article-content td {
            padding: 12px 16px;
            border-bottom: 1px solid #E8EAE8;
        }

        .article-content th {
            background: var(--green-light);
            font-weight: 600;
            color: var(--dark);
        }

        .article-content pre {
            background: #F5F5F5;
            border-radius: 12px;
            padding: 18px;
            margin: 28px 0;
            overflow-x: auto;
            font-family: "SFMono-Regular", Consolas, monospace;
            font-size: 14px;
        }

        .article-content code {
            background: #F0F1F0;
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 0.9em;
        }

        .article-content pre code {
            background: transparent;
            padding: 0;
        }

        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin: 40px 0 28px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }

        .tag-label {
            font-size: 14px;
            color: var(--text-light);
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 999px;
            background: var(--green-light);
            color: var(--green);
            font-size: 13px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s;
        }

        .tag-chip:hover {
            background: var(--green);
            color: #fff;
        }

        .article-pager {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
        }

        .pager-item {
            flex: 1;
            min-width: 240px;
            background: #F9FAF9;
            border-radius: 12px;
            padding: 18px 20px;
            border: 1px solid var(--border);
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .pager-item:hover {
            border-color: var(--green);
            box-shadow: var(--shadow);
        }

        .pager-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 6px;
        }

        .pager-label i {
            color: var(--green);
        }

        .pager-title {
            display: block;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s, transform 0.2s;
        }

        .pager-item:hover .pager-title {
            color: var(--green);
            transform: translateX(4px);
        }

        .back-list-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .back-list-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--green-light);
            color: var(--green);
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.2s;
        }

        .back-list-link:hover {
            background: var(--green);
            color: #fff;
        }

        .not-found {
            text-align: center;
            padding: 80px 24px;
        }

        .not-found h1 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
        }

        .not-found p {
            color: var(--text-light);
            margin-bottom: 32px;
        }

        .related-section {
            background: #fff;
            padding: 72px 0;
            border-top: 1px solid rgba(0, 0, 0, 0.04);
        }

        .related-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .related-heading h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--dark);
            margin: 0;
            padding-left: 12px;
            border-left: 4px solid var(--green);
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .related-card {
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid rgba(0, 0, 0, 0.06);
            transition: box-shadow 0.3s, border-color 0.3s;
            height: 100%;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--green);
            transform: translateY(-4px);
        }

        .related-cover {
            display: block;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }

        .related-body {
            padding: 20px 22px;
        }

        .related-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .related-body h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s;
        }

        .related-body h3 a:hover {
            color: var(--green);
        }

        .related-time {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-cta {
            background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: repeating-linear-gradient(90deg, transparent, transparent 24px, rgba(255, 255, 255, 0.25) 24px, rgba(255, 255, 255, 0.25) 30px);
        }

        .article-cta h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .article-cta p {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            max-width: 560px;
        }

        .article-cta .btn-accent {
            border-radius: 999px;
            padding: 12px 36px;
            font-size: 16px;
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-icon {
            width: 36px;
            height: 36px;
            background: var(--green);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .footer-brand-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-links a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-contact svg {
            color: var(--gold);
            flex-shrink: 0;
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .copyright-inner {
            display: flex;
            flex-direction: row;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .copyright a {
            color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
        }

        .copyright a:hover {
            color: rgba(255, 255, 255, 0.8);
        }

        @media (max-width: 992px) {
            .main-nav {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                align-items: stretch;
                padding: 24px 24px 32px;
                gap: 12px;
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                border-bottom: 2px solid var(--green);
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
                z-index: 999;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .site-header.scrolled .main-nav {
                background: var(--paper);
            }

            .nav-chip {
                color: rgba(255, 255, 255, 0.85);
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 16px;
            }

            .site-header.scrolled .nav-chip {
                color: var(--text);
            }

            .nav-chip.active {
                background: var(--green);
                color: #fff;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-nav {
                display: none;
            }

            .header-inner {
                gap: 8px;
            }

            .article-wrap {
                padding: 36px 28px;
            }

            .article-title {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .article-section {
                padding: 32px 0 48px;
            }

            .article-title {
                font-size: 28px;
                line-height: 1.35;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .related-heading h2 {
                font-size: 26px;
            }

            .article-cta {
                padding: 60px 0;
            }

            .article-cta h2 {
                font-size: 28px;
            }

            .pager-item {
                min-width: 100%;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

            .article-wrap {
                padding: 28px 18px;
                border-radius: 14px;
            }

            .article-title {
                font-size: 24px;
            }

            .article-meta {
                gap: 8px;
                flex-direction: column;
                align-items: flex-start;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.7;
            }

            .article-content h2 {
                font-size: 22px;
            }

            .article-content h3 {
                font-size: 19px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .related-heading h2 {
                font-size: 24px;
            }

            .related-body {
                padding: 16px;
            }

            .copyright-inner {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
        --green: #0B6E4F;
        --green-dark: #094D38;
        --green-light: #E8F3EE;
        --orange: #F48C06;
        --gold: #D9A049;
        --paper: #F7F6F3;
        --dark: #122620;
        --text: #4A4A4A;
        --text-light: #8A8A8A;
        --border: #E5E4E1;
        --radius: 16px;
        --radius-sm: 8px;
        --shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
        --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        --font-num: Arial, Helvetica, sans-serif;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-cn);
        font-size: 16px;
        line-height: 1.75;
        color: var(--text);
        background: var(--paper);
        letter-spacing: 0.2px;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: var(--green);
        text-decoration: none;
        transition: color 0.2s;
    }
    a:hover {
        color: var(--green-dark);
    }
    img {
        max-width: 100%;
        display: block;
    }
    .container {
        max-width: 1200px;
        padding-left: 24px;
        padding-right: 24px;
    }
    @media (max-width: 520px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    /* ===== Buttons ===== */
    .btn {
        min-height: 44px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        padding: 10px 28px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border: 1.5px solid transparent;
        transition: all 0.2s ease;
    }
    .btn-primary {
        background: var(--green);
        border-color: var(--green);
        color: #fff;
    }
    .btn-primary:hover {
        background: var(--green-dark);
        border-color: var(--green-dark);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(11, 110, 79, 0.3);
    }
    .btn-accent {
        background: var(--orange);
        border-color: var(--orange);
        color: #fff;
    }
    .btn-accent:hover {
        background: #d97c05;
        border-color: #d97c05;
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(244, 140, 6, 0.3);
    }
    .btn-outline-green {
        background: transparent;
        border-color: var(--green);
        color: var(--green);
    }
    .btn-outline-green:hover {
        background: var(--green);
        color: #fff;
    }
    .btn:focus-visible,
    .form-control:focus-visible {
        outline: 3px solid rgba(11, 110, 79, 0.4);
        outline-offset: 2px;
    }
    .btn-nav {
        min-height: 40px;
        padding: 8px 22px;
        font-size: 14px;
    }

    /* ===== Header ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1002;
        background: var(--dark);
        padding: 14px 0;
        transition: background 0.3s, box-shadow 0.3s, padding 0.3s;
    }
    .site-header.scrolled {
        background: var(--paper);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        padding: 8px 0;
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .brand-icon {
        width: 38px;
        height: 38px;
        background: var(--green);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        box-shadow: 0 4px 12px rgba(11, 110, 79, 0.3);
        flex-shrink: 0;
    }
    .brand-icon svg {
        width: 20px;
        height: 20px;
    }
    .brand-text {
        font-size: 18px;
        font-weight: 800;
        color: #fff;
        letter-spacing: 0.5px;
        white-space: nowrap;
        transition: color 0.3s;
    }
    .site-header.scrolled .brand-text {
        color: var(--dark);
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: nowrap;
    }
    .nav-chip {
        padding: 8px 18px;
        border-radius: 40px;
        font-size: 14px;
        font-weight: 600;
        color: rgba(255, 255, 255, 0.85);
        transition: background 0.2s, color 0.2s;
        white-space: nowrap;
    }
    .nav-chip:hover {
        background: rgba(255, 255, 255, 0.1);
        color: #fff;
    }
    .nav-chip.active {
        background: var(--green);
        color: #fff;
        box-shadow: 0 3px 10px rgba(11, 110, 79, 0.4);
    }
    .site-header.scrolled .nav-chip {
        color: var(--dark);
    }
    .site-header.scrolled .nav-chip:hover {
        background: rgba(11, 110, 79, 0.1);
        color: var(--green);
    }
    .site-header.scrolled .nav-chip.active {
        background: var(--green);
        color: #fff;
    }
    .nav-toggle {
        display: none;
        width: 44px;
        height: 44px;
        background: transparent;
        border: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        cursor: pointer;
        border-radius: 8px;
        z-index: 1004;
    }
    .nav-toggle span {
        display: block;
        width: 22px;
        height: 2px;
        background: #fff;
        border-radius: 2px;
        transition: transform 0.3s, opacity 0.3s;
    }
    .site-header.scrolled .nav-toggle span {
        background: var(--dark);
    }
    body.nav-open .nav-toggle span {
        background: #fff;
    }
    body.nav-open .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    body.nav-open .nav-toggle span:nth-child(2) {
        opacity: 0;
    }
    body.nav-open .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    @media (max-width: 992px) {
        .main-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--dark);
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 28px;
            z-index: 1001;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s;
        }
        .main-nav .nav-chip {
            font-size: 18px;
            padding: 12px 32px;
            color: #fff;
        }
        body.nav-open .main-nav {
            opacity: 1;
            visibility: visible;
        }
        .nav-toggle {
            display: flex;
        }
        .btn-nav {
            display: none;
        }
        body.nav-open .btn-nav {
            display: inline-flex;
            position: fixed;
            bottom: 60px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1003;
            min-width: 180px;
        }
        body.nav-open .btn-nav:hover {
            transform: translateX(-50%) translateY(-2px);
        }
    }

    /* ===== Page Banner ===== */
    .page-banner {
        position: relative;
        height: 300px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-top: 0;
        overflow: hidden;
    }
    .page-banner .banner-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
    }
    .page-banner .banner-overlay {
        position: absolute;
        inset: 0;
        background: rgba(18, 38, 32, 0.62);
    }
    .page-banner .banner-content {
        position: relative;
        z-index: 2;
        text-align: center;
        padding-top: 60px;
    }
    .page-banner h1 {
        font-size: 36px;
        font-weight: 800;
        color: #fff;
        letter-spacing: 1px;
        margin-bottom: 12px;
        line-height: 1.2;
    }
    .page-banner p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 16px;
        max-width: 620px;
        margin: 0 auto;
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb-wrap {
        padding: 20px 0;
        font-size: 14px;
        color: var(--text-light);
    }
    .breadcrumb-wrap a {
        color: var(--text-light);
        transition: color 0.2s;
    }
    .breadcrumb-wrap a:hover {
        color: var(--green);
    }
    .breadcrumb-wrap .sep {
        margin: 0 8px;
        color: #c0bdb8;
    }
    .breadcrumb-wrap .current {
        color: var(--text);
        font-weight: 600;
    }

    /* ===== Category Layout ===== */
    .category-page {
        padding-bottom: 96px;
    }
    @media (max-width: 768px) {
        .category-page {
            padding-bottom: 64px;
        }
    }
    .category-content .content-block {
        margin-bottom: 56px;
    }
    .category-content h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--dark);
        letter-spacing: 0.5px;
        margin-bottom: 20px;
        padding-left: 16px;
        border-left: 4px solid var(--green);
        border-radius: 0 2px 2px 0;
        line-height: 1.3;
    }
    @media (max-width: 768px) {
        .category-content h2 {
            font-size: 24px;
        }
    }
    .category-content p {
        margin-bottom: 20px;
    }
    .intro-section .intro-img {
        width: 100%;
        border-radius: var(--radius);
        margin-bottom: 28px;
        object-fit: cover;
        max-height: 360px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }
    .intro-highlight {
        background: var(--green-light);
        border-radius: var(--radius);
        padding: 24px 28px;
        margin: 24px 0;
        border-left: 4px solid var(--green);
    }
    .intro-highlight p {
        margin: 0;
        font-size: 15px;
        line-height: 1.8;
    }

    /* ===== Service Cards ===== */
    .service-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    @media (max-width: 768px) {
        .service-grid {
            grid-template-columns: 1fr;
        }
    }
    .service-card {
        background: #fff;
        border-radius: var(--radius);
        border: 1px solid var(--border);
        padding: 28px;
        transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .service-card:hover {
        border-color: var(--green);
        box-shadow: var(--shadow);
        transform: translateY(-2px);
    }
    .service-card .service-icon {
        width: 52px;
        height: 52px;
        background: var(--green-light);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--green);
        transition: background 0.2s;
    }
    .service-card:hover .service-icon {
        background: var(--green);
        color: #fff;
    }
    .service-card .service-icon svg {
        width: 24px;
        height: 24px;
    }
    .service-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--dark);
        letter-spacing: 0.5px;
        margin: 0;
    }
    .service-card p {
        font-size: 15px;
        color: var(--text);
        margin: 0;
        line-height: 1.7;
    }
    .service-card-main {
        background: var(--dark);
        border-color: var(--dark);
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .service-card-main:hover {
        border-color: var(--dark);
        box-shadow: 0 12px 30px rgba(18, 38, 32, 0.3);
    }
    .service-card-main .service-icon {
        background: rgba(255, 255, 255, 0.12);
        color: var(--gold);
    }
    .service-card-main:hover .service-icon {
        background: var(--gold);
        color: var(--dark);
    }
    .service-card-main h3 {
        color: #fff;
    }
    .service-card-main p {
        color: rgba(255, 255, 255, 0.75);
    }
    .service-card-main::after {
        content: "";
        position: absolute;
        width: 120px;
        height: 120px;
        border-radius: 50%;
        border: 1px dashed rgba(217, 160, 73, 0.4);
        top: -30px;
        right: -30px;
    }

    /* ===== Process Timeline ===== */
    .process-section {
        background: #fff;
        border-radius: var(--radius);
        border: 1px solid #e5f2eb;
        padding: 36px 32px;
    }
    @media (max-width: 768px) {
        .process-section {
            padding: 24px 20px;
        }
    }
    .timeline {
        position: relative;
        padding-left: 0;
        margin: 0;
        list-style: none;
    }
    .timeline::before {
        content: "";
        position: absolute;
        left: 24px;
        top: 24px;
        bottom: 24px;
        width: 2px;
        border-left: 2px dashed var(--green);
        opacity: 0.35;
    }
    @media (max-width: 768px) {
        .timeline::before {
            left: 18px;
        }
    }
    .timeline-item {
        position: relative;
        padding-left: 76px;
        margin-bottom: 36px;
    }
    .timeline-item:last-child {
        margin-bottom: 0;
    }
    @media (max-width: 768px) {
        .timeline-item {
            padding-left: 60px;
        }
    }
    .timeline-item .step-num {
        position: absolute;
        left: 0;
        top: 4px;
        width: 48px;
        height: 48px;
        background: #fff;
        border: 2px solid var(--green);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-num);
        font-size: 15px;
        font-weight: 800;
        color: var(--green);
        box-shadow: 0 0 0 4px rgba(217, 160, 73, 0.2);
        z-index: 1;
    }
    @media (max-width: 768px) {
        .timeline-item .step-num {
            width: 38px;
            height: 38px;
            font-size: 13px;
        }
    }
    .timeline-item h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 6px;
        letter-spacing: 0.5px;
    }
    .timeline-item p {
        font-size: 15px;
        color: var(--text);
        margin: 0;
        line-height: 1.7;
    }

    /* ===== Stats Section ===== */
    .stats-section {
        background: var(--dark);
        border-radius: var(--radius);
        padding: 44px 32px;
        position: relative;
        overflow: hidden;
    }
    .stats-section::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: repeating-linear-gradient(90deg, var(--green) 0 40px, transparent 40px 60px);
        opacity: 0.6;
    }
    .stats-row {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        text-align: center;
    }
    @media (max-width: 768px) {
        .stats-row {
            grid-template-columns: 1fr 1fr;
            gap: 20px 12px;
        }
    }
    .stats-row .stat-item {
        padding: 20px 8px;
        border-right: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stats-row .stat-item:last-child {
        border-right: none;
    }
    @media (max-width: 768px) {
        .stats-row .stat-item:nth-child(2) {
            border-right: none;
        }
        .stats-row .stat-item:nth-child(3) {
            grid-column: span 2;
            border-right: none;
        }
    }
    .stats-row .stat-item strong {
        display: block;
        font-family: var(--font-num);
        font-size: 48px;
        font-weight: 800;
        color: var(--gold);
        line-height: 1.1;
        margin-bottom: 8px;
    }
    @media (max-width: 768px) {
        .stats-row .stat-item strong {
            font-size: 36px;
        }
    }
    .stats-row .stat-item span {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.7);
        letter-spacing: 0.5px;
    }

    /* ===== Scene List ===== */
    .scene-list {
        list-style: none;
        padding: 0;
        margin: 0;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }
    @media (max-width: 768px) {
        .scene-list {
            grid-template-columns: 1fr;
        }
    }
    .scene-list li {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 16px 20px;
        font-size: 15px;
        font-weight: 600;
        color: var(--dark);
        display: flex;
        align-items: center;
        gap: 12px;
        transition: border-color 0.2s, box-shadow 0.2s;
    }
    .scene-list li:hover {
        border-color: var(--green);
        box-shadow: 0 4px 16px rgba(11, 110, 79, 0.08);
    }
    .scene-list li::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--green);
        flex-shrink: 0;
    }

    /* ===== FAQ ===== */
    .faq-section .accordion {
        --bs-accordion-border-color: transparent;
        --bs-accordion-border-radius: 12px;
        --bs-accordion-inner-border-radius: 12px;
        --bs-accordion-btn-focus-box-shadow: none;
    }
    .faq-section .accordion-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 12px !important;
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color 0.2s, box-shadow 0.2s;
    }
    .faq-section .accordion-item:hover {
        border-color: rgba(11, 110, 79, 0.4);
    }
    .faq-section .accordion-button {
        font-size: 16px;
        font-weight: 700;
        color: var(--dark);
        padding: 18px 20px;
        background: #fff;
        letter-spacing: 0.3px;
        box-shadow: none !important;
    }
    .faq-section .accordion-button:not(.collapsed) {
        background: #fff;
        color: var(--green);
    }
    .faq-section .accordion-button::after {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background-color: var(--green-light);
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230B6E4F' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
        background-size: 14px;
        background-position: center;
        transition: transform 0.3s, background-color 0.3s;
    }
    .faq-section .accordion-button:not(.collapsed)::after {
        transform: rotate(45deg);
        background-color: var(--green);
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
    }
    .faq-section .accordion-body {
        padding: 4px 20px 20px 20px;
        font-size: 15px;
        line-height: 1.75;
        color: var(--text);
        border-left: 3px solid var(--green);
        border-radius: 0 0 0 3px;
        margin: 0 20px 16px 20px;
        background: #fafbfa;
        padding: 14px 18px;
    }

    /* ===== Sidebar ===== */
    .sidebar {
        position: sticky;
        top: 88px;
    }
    @media (max-width: 992px) {
        .sidebar {
            position: static;
            margin-top: 40px;
        }
    }
    .side-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 24px;
        margin-bottom: 20px;
    }
    .side-card h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--dark);
        padding-bottom: 12px;
        margin-bottom: 16px;
        border-bottom: 2px solid var(--green-light);
        letter-spacing: 0.5px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .side-card h3::before {
        content: "";
        width: 4px;
        height: 18px;
        background: var(--green);
        border-radius: 2px;
        display: inline-block;
    }
    .side-toc {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .side-toc li {
        margin-bottom: 6px;
    }
    .side-toc a {
        display: block;
        padding: 8px 12px;
        font-size: 15px;
        color: var(--text);
        border-radius: 8px;
        transition: background 0.2s, color 0.2s, padding-left 0.2s;
    }
    .side-toc a:hover {
        background: var(--green-light);
        color: var(--green);
        padding-left: 16px;
    }
    .side-toc .toc-active {
        background: var(--green-light);
        color: var(--green);
        font-weight: 600;
    }
    .side-contact-list {
        list-style: none;
        padding: 0;
        margin: 0 0 16px 0;
    }
    .side-contact-list li {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 0;
        font-size: 14px;
        color: var(--text);
    }
    .side-contact-list svg {
        width: 17px;
        height: 17px;
        color: var(--green);
        flex-shrink: 0;
    }
    .side-relate .relate-item {
        display: flex;
        gap: 12px;
        align-items: center;
        padding: 10px 0;
        border-bottom: 1px solid #f0f0ee;
        transition: background 0.2s;
    }
    .side-relate .relate-item:last-child {
        border-bottom: none;
    }
    .side-relate .relate-item img {
        width: 64px;
        height: 48px;
        border-radius: 8px;
        object-fit: cover;
        flex-shrink: 0;
    }
    .side-relate .relate-item .relate-title {
        font-size: 14px;
        font-weight: 600;
        color: var(--dark);
        line-height: 1.4;
        transition: color 0.2s;
    }
    .side-relate .relate-item:hover .relate-title {
        color: var(--green);
    }

    /* ===== CTA Section ===== */
    .cta-section {
        background: linear-gradient(135deg, #0B6E4F 0%, #094D38 100%);
        padding: 80px 0;
        position: relative;
        overflow: hidden;
    }
    @media (max-width: 768px) {
        .cta-section {
            padding: 60px 0;
        }
    }
    .cta-section::before {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        border: 40px solid rgba(255, 255, 255, 0.03);
        top: -80px;
        right: -80px;
    }
    .cta-inner {
        background: #fff;
        border-radius: 20px;
        padding: 44px 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 40px;
        position: relative;
        z-index: 2;
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
    }
    @media (max-width: 992px) {
        .cta-inner {
            flex-direction: column;
            align-items: flex-start;
            padding: 32px 28px;
        }
    }
    .cta-inner h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 8px;
        letter-spacing: 0.5px;
        border-left: 4px solid var(--green);
        padding-left: 16px;
    }
    @media (max-width: 768px) {
        .cta-inner h2 {
            font-size: 22px;
        }
    }
    .cta-inner p {
        color: var(--text);
        font-size: 15px;
        margin-bottom: 20px;
    }
    .cta-contacts {
        display: flex;
        gap: 24px;
        flex-wrap: wrap;
        margin-top: 8px;
    }
    .cta-contacts span {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text);
        background: var(--paper);
        border-radius: 40px;
        padding: 8px 18px;
    }
    .cta-contacts svg {
        width: 16px;
        height: 16px;
        color: var(--green);
    }
    .cta-actions {
        display: flex;
        gap: 12px;
        flex-shrink: 0;
    }
    @media (max-width: 992px) {
        .cta-actions {
            width: 100%;
            flex-wrap: wrap;
        }
        .cta-actions .btn {
            flex: 1;
            min-width: 140px;
        }
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--dark);
        color: rgba(255, 255, 255, 0.8);
        padding: 72px 0 0;
        font-size: 15px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    @media (max-width: 992px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
    }
    @media (max-width: 576px) {
        .footer-grid {
            grid-template-columns: 1fr;
        }
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }
    .footer-brand-icon {
        width: 36px;
        height: 36px;
        background: var(--green);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        flex-shrink: 0;
    }
    .footer-brand-text {
        font-size: 18px;
        font-weight: 800;
        color: #fff;
        letter-spacing: 0.5px;
    }
    .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.6);
        max-width: 320px;
        margin: 0;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 20px;
        letter-spacing: 0.5px;
        position: relative;
        padding-bottom: 10px;
    }
    .footer-title::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 24px;
        height: 3px;
        border-radius: 2px;
        background: var(--green);
    }
    .footer-links,
    .footer-contact {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-links li,
    .footer-contact li {
        margin-bottom: 12px;
    }
    .footer-links a {
        color: rgba(255, 255, 255, 0.6);
        font-size: 14px;
        transition: color 0.2s, padding-left 0.2s;
    }
    .footer-links a:hover {
        color: var(--gold);
        padding-left: 4px;
    }
    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.6);
    }
    .footer-contact svg {
        width: 16px;
        height: 16px;
        color: var(--green);
        flex-shrink: 0;
    }
    .footer-bottom {
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.4);
    }
    @media (max-width: 576px) {
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    /* ===== Utility ===== */
    .section-padding {
        padding: 96px 0;
    }
    @media (max-width: 768px) {
        .section-padding {
            padding: 64px 0;
        }
    }
    .text-primary-green {
        color: var(--green);
    }
    .bg-paper {
        background: var(--paper);
    }
    .img-radius {
        border-radius: var(--radius);
    }
    .mb-2 {
        margin-bottom: 8px;
    }
    .mb-3 {
        margin-bottom: 16px;
    }
    .mb-4 {
        margin-bottom: 24px;
    }
    .mb-5 {
        margin-bottom: 32px;
    }
    .mt-4 {
        margin-top: 24px;
    }
    .mt-5 {
        margin-top: 32px;
    }