/* roulang page: index */
:root{
  --primary:#1D3A2F;
  --primary-light:#2C4B3F;
  --primary-dark:#112920;
  --accent:#B08D57;
  --accent-light:#C4A26E;
  --bg-warm:#F5F3EE;
  --bg-card:#FFFFFF;
  --text-main:#1F2622;
  --text-secondary:#6E7A72;
  --text-on-dark:#EDEAE2;
  --border:#E2DFD7;
  --tag-bg:#EEF1ED;
  --radius-lg:12px;
  --radius-md:8px;
  --radius-sm:6px;
  --shadow-card:0 2px 8px rgba(29,58,47,0.04);
  --shadow-hover:0 12px 32px rgba(29,58,47,0.10);
  --shadow-accent:0 6px 20px rgba(176,141,87,0.32);
  --font-serif:'Noto Serif SC','Source Han Serif SC',STSong,'SimSun',serif;
  --font-sans:'Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --sp-section:96px;
  --sp-section-mobile:64px;
  --container-w:1320px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  background:var(--bg-warm);
  color:var(--text-main);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);line-height:1.3;margin:0 0 16px}
.container{max-width:var(--container-w)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 28px;font-size:15px;font-weight:500;border-radius:var(--radius-sm);
  transition:all .3s ease;letter-spacing:.02em;border:1px solid transparent;
}
.btn:focus,.btn:active{outline:none;box-shadow:0 0 0 3px rgba(176,141,87,0.25)}
.btn-accent{
  background:var(--accent);color:var(--primary-dark);border-color:var(--accent);
  box-shadow:var(--shadow-accent);
}
.btn-accent:hover{background:var(--accent-light);color:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 28px rgba(176,141,87,0.40)}
.btn-primary-custom{
  background:var(--primary);color:var(--text-on-dark);border-color:var(--primary);
}
.btn-primary-custom:hover{background:var(--primary-light);color:#fff;transform:translateY(-1px)}
.btn-outline{
  background:transparent;color:var(--text-on-dark);border-color:rgba(255,255,255,0.55);
}
.btn-outline:hover{background:rgba(255,255,255,0.10);color:#fff;border-color:#fff}
.btn-light-line{
  background:transparent;color:var(--primary);border-color:var(--border);
}
.btn-light-line:hover{border-color:var(--primary);color:var(--primary);background:var(--bg-warm)}
/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:1000;
  height:64px;display:flex;align-items:center;
  transition:background .35s ease,box-shadow .35s ease;
  background:transparent;
}
.site-header.scrolled{
  background:var(--bg-warm);box-shadow:0 1px 0 rgba(0,0,0,0.06),0 4px 20px rgba(29,58,47,0.06);
}
.site-header .nav-layout{
  display:flex;align-items:center;justify-content:space-between;position:relative;width:100%;
}
.nav-left,.nav-right{display:flex;align-items:center;gap:32px}
.nav-left{justify-content:flex-end;flex:1}
.nav-right{justify-content:flex-start;flex:1}
.logo-center{
  width:220px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);
}
.logo-num{
  font-family:'Barlow Condensed',var(--font-sans);
  font-size:24px;font-weight:700;letter-spacing:.02em;color:var(--accent);
  margin-right:4px;font-variant-numeric:tabular-nums;
}
.logo-name{font-size:22px;font-weight:600;color:var(--primary);letter-spacing:.06em}
.site-header.scrolled .logo-name{color:var(--primary)}
.nav-link{
  font-size:15px;font-weight:500;color:rgba(255,255,255,0.92);
  padding:8px 2px;position:relative;transition:color .3s ease;white-space:nowrap;
}
.site-header.scrolled .nav-link{color:var(--text-main)}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--accent);transition:width .3s ease;
}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-link:hover,.nav-link.active{color:var(--accent)}
.btn-nav-cta{
  background:var(--accent);color:var(--primary-dark) !important;padding:8px 20px;
  border-radius:var(--radius-sm);font-weight:600;font-size:14px;
}
.btn-nav-cta:hover{background:var(--accent-light);color:var(--primary-dark) !important}
.btn-nav-cta::after{display:none}
.navbar-toggler{border:none;padding:4px 8px}
.navbar-toggler:focus{outline:none;box-shadow:none}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(29,58,47,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}
@media(max-width:991.98px){
  .site-header{height:56px;background:var(--bg-warm);box-shadow:0 1px 0 rgba(0,0,0,0.06)}
  .site-header .container{max-width:100%}
  .nav-layout{flex-wrap:wrap}
  .nav-left,.nav-right{display:none}
  .logo-center{width:auto;position:absolute;left:16px;top:50%;transform:translateY(-50%)}
  .navbar-collapse{
    background:var(--bg-warm);border-top:1px solid var(--border);
    margin-top:8px;padding:24px 0;
  }
  .mobile-menu-layout{display:flex;flex-direction:column;gap:4px}
  .mobile-menu-layout .nav-link{color:var(--text-main);font-size:18px;padding:12px 0;font-weight:500;border-bottom:1px solid rgba(226,223,215,0.5)}
  .mobile-menu-layout .nav-link::after{display:none}
  .mobile-menu-layout .btn-nav-cta{display:inline-block;margin-top:16px;text-align:center;padding:12px;font-size:16px}
}
/* ===== Hero ===== */
.hero-section{
  position:relative;min-height:92vh;display:flex;align-items:center;
  overflow:hidden;padding-top:64px;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  z-index:0;background-attachment:fixed;
}
@media(max-width:768px){.hero-bg{background-attachment:scroll}}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(20,32,26,0.30) 0%,rgba(20,32,26,0.60) 50%,rgba(20,32,26,0.90) 100%);
}
.hero-content{position:relative;z-index:2;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(176,141,87,0.16);border:1px solid rgba(176,141,87,0.45);
  color:var(--accent-light);font-size:13px;font-weight:500;
  padding:6px 16px;border-radius:30px;letter-spacing:.08em;margin-bottom:24px;
}
.hero-title{
  font-family:var(--font-serif);color:#fff;font-weight:600;
  font-size:54px;line-height:1.2;margin-bottom:16px;letter-spacing:.02em;
  animation:heroUp .8s ease .2s both;
}
.hero-title .hero-title-sub{
  display:block;font-size:40px;font-weight:500;color:rgba(237,234,226,0.92);
  margin-top:8px;
}
.hero-subtitle{
  color:rgba(237,234,226,0.85);font-size:17px;line-height:1.7;max-width:460px;margin-bottom:36px;
  animation:heroUp .8s ease .4s both;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;animation:heroUp .8s ease .6s both}
.hero-stats{
  display:flex;gap:0;margin-top:72px;animation:heroUp .8s ease .8s both;
  border-top:1px solid rgba(255,255,255,0.20);padding-top:32px;max-width:620px;
}
.stat-item{
  flex:1;display:flex;flex-direction:column;gap:4px;
  padding:0 32px;position:relative;
}
.stat-item:first-child{padding-left:0}
.stat-item:not(:last-child)::after{
  content:'';position:absolute;right:0;top:8px;bottom:8px;width:1px;background:rgba(255,255,255,0.18);
}
.stat-num{
  font-size:44px;font-weight:600;color:#fff;font-variant-numeric:tabular-nums;
  font-family:var(--font-serif);line-height:1.1;
}
.stat-label{font-size:14px;color:rgba(237,234,226,0.75);letter-spacing:.04em}
.hero-scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;
  color:rgba(255,255,255,0.70);font-size:20px;animation:bounceDown 2s ease infinite;
}
@keyframes heroUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes bounceDown{
  0%,100%{transform:translate(-50%,0)}
  50%{transform:translate(-50%,10px)}
}
/* ===== Section base ===== */
.section-block{padding:var(--sp-section) 0}
@media(max-width:768px){.section-block{padding:var(--sp-section-mobile) 0}}
.section-head{
  text-align:center;max-width:720px;margin:0 auto 56px;
}
.section-head .section-tag{
  display:inline-block;font-size:13px;font-weight:500;letter-spacing:.10em;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:34px;font-weight:600;color:var(--text-main);margin-bottom:12px;
  position:relative;
}
.section-head p{color:var(--text-secondary);font-size:16px;line-height:1.7}
/* ===== Steps ===== */
.steps-section{background:var(--bg-card)}
.steps-grid{position:relative}
.step-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:36px 32px;height:100%;position:relative;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.step-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(176,141,87,0.40);
}
.step-num{
  font-size:56px;font-weight:600;color:rgba(176,141,87,0.30);
  font-family:var(--font-serif);line-height:1;display:block;margin-bottom:20px;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--text-main)}
.step-card p{font-size:15px;color:var(--text-secondary);line-height:1.75;margin-bottom:0}
.step-arrow{
  position:absolute;top:50%;right:-40px;transform:translateY(-50%);
  font-size:22px;color:var(--accent);z-index:5;
}
@media(max-width:991.98px){
  .step-arrow{display:none}
}
/* ===== Cases ===== */
.cases-section{background:var(--bg-warm)}
.case-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;height:100%;transition:transform .3s ease,box-shadow .3s ease;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--tag-bg)}
.case-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-img img{transform:scale(1.04)}
.case-img .case-industry{
  position:absolute;left:16px;top:16px;background:rgba(29,58,47,0.82);
  color:#fff;font-size:12px;padding:4px 12px;border-radius:20px;letter-spacing:.04em;
  backdrop-filter:blur(4px);
}
.case-body{padding:28px 28px 32px}
.case-body h3{font-size:19px;font-weight:600;margin-bottom:10px}
.case-body .case-desc{font-size:14px;color:var(--text-secondary);line-height:1.7;margin-bottom:20px}
.case-metric{
  display:flex;align-items:baseline;gap:8px;border-top:1px solid var(--border);
  padding-top:20px;
}
.metric-num{
  font-size:30px;font-weight:600;color:var(--primary);font-family:var(--font-serif);
  font-variant-numeric:tabular-nums;
}
.metric-label{font-size:13px;color:var(--text-secondary)}
/* ===== FAQ ===== */
.faq-section{background:var(--bg-card)}
.faq-wrap{max-width:860px;margin:0 auto}
.accordion-item{
  background:transparent;border:none;border-top:1px solid var(--border);
  border-radius:0 !important;padding:6px 0;
}
.accordion-item:last-child{border-bottom:1px solid var(--border)}
.accordion-button{
  background:transparent;box-shadow:none;border-radius:0 !important;
  font-family:var(--font-serif);font-size:17px;font-weight:500;color:var(--text-main);
  padding:22px 12px;gap:16px;transition:color .25s ease;
}
.accordion-button:not(.collapsed){
  background:transparent;box-shadow:none;color:var(--primary);
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231D3A2F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  background-size:14px;transition:transform .25s ease;
}
.accordion-button:focus{outline:none;box-shadow:none}
.faq-num{
  font-size:15px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;
  min-width:36px;font-family:var(--font-sans);
}
.accordion-body{padding:0 12px 24px 64px;color:var(--text-secondary);font-size:15px;line-height:1.75}
/* ===== News CMS ===== */
.news-section{background:var(--bg-warm)}
.news-list{max-width:1080px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.news-item{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;display:flex;align-items:center;gap:32px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.news-date-block{
  flex-shrink:0;text-align:center;min-width:80px;padding-right:32px;
  border-right:1px solid var(--border);
}
.news-day{
  display:block;font-size:40px;font-weight:600;color:var(--primary);
  font-family:var(--font-serif);line-height:1.1;font-variant-numeric:tabular-nums;
}
.news-year{
  display:block;font-size:13px;color:var(--text-secondary);margin-top:4px;letter-spacing:.06em;
}
.news-content{flex:1;min-width:0}
.news-tag{
  display:inline-block;background:rgba(176,141,87,0.14);color:var(--accent);
  font-size:12px;font-weight:500;padding:3px 12px;border-radius:20px;margin-bottom:10px;
  letter-spacing:.05em;
}
.news-content h3{font-size:19px;font-weight:600;margin-bottom:8px;margin-left:0}
.news-content h3 a{color:var(--text-main)}
.news-content h3 a:hover{color:var(--accent)}
.news-content p{
  font-size:14px;color:var(--text-secondary);line-height:1.65;margin-bottom:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{flex-shrink:0}
.news-more a{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;
  color:var(--primary);padding:8px 0;border-bottom:1px solid transparent;
  transition:border-color .25s ease,color .25s ease;
}
.news-more a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.news-more a i{font-size:12px;transition:transform .25s ease}
.news-more a:hover i{transform:translateX(4px)}
.news-empty{
  background:var(--bg-card);border:1px dashed var(--border);border-radius:var(--radius-lg);
  padding:48px 20px;text-align:center;color:var(--text-secondary);font-size:15px;
}
/* ===== CTA ===== */
.cta-section{background:var(--primary-dark);padding:96px 0;position:relative;overflow:hidden}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 20% 30%,rgba(176,141,87,0.12) 0%,transparent 60%);
}
.cta-wrap{position:relative;z-index:1}
.cta-info h2{
  font-size:36px;font-weight:600;color:var(--text-on-dark);margin-bottom:16px;
  font-family:var(--font-serif);
}
.cta-info p{color:rgba(237,234,226,0.75);font-size:16px;max-width:480px;margin-bottom:40px}
.cta-form-wrap{
  background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:var(--radius-lg);padding:40px;backdrop-filter:blur(8px);
}
.cta-form-wrap .form-control,.cta-form-wrap .form-select{
  background:rgba(255,255,255,0.10);border:1px solid rgba(255,255,255,0.18);
  color:#fff;border-radius:var(--radius-sm);padding:12px 16px;font-size:15px;
  transition:border-color .25s ease,background .25s ease;
}
.cta-form-wrap .form-control::placeholder{color:rgba(237,234,226,0.55)}
.cta-form-wrap .form-control:focus,.cta-form-wrap .form-select:focus{
  background:rgba(255,255,255,0.14);border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(176,141,87,0.18);outline:none;color:#fff;
}
.cta-form-wrap .form-select{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23EDEAE2'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.cta-form-wrap .form-select option{color:var(--text-main);background:var(--bg-card)}
.btn-submit{
  margin-top:24px;background:var(--accent);color:var(--primary-dark);border:none;
  width:100%;padding:13px 28px;font-size:16px;font-weight:600;border-radius:var(--radius-sm);
  transition:all .3s ease;
}
.btn-submit:hover{background:var(--accent-light);color:var(--primary-dark);transform:translateY(-1px)}
.form-note{font-size:12px;color:rgba(237,234,226,0.5);margin-top:14px;text-align:center;letter-spacing:.02em}
/* ===== Footer ===== */
.site-footer{background:var(--primary-dark);padding:72px 0 0;color:#9EB0A5}
.footer-brand .footer-logo{
  font-family:var(--font-serif);font-size:26px;font-weight:600;color:var(--text-on-dark);
  display:flex;align-items:center;margin-bottom:16px;
}
.footer-brand .footer-logo .logo-num{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.8;color:#9EB0A5;max-width:300px}
.footer-col h4{font-size:16px;font-weight:600;color:var(--text-on-dark);margin-bottom:20px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:#9EB0A5;transition:color .25s ease}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:center;gap:8px;font-size:14px;color:#9EB0A5}
.footer-contact li i{color:var(--accent);font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);margin-top:56px;padding:24px 0;
  text-align:center;font-size:13px;color:#7A8B80;
}
/* ===== Scroll reveal ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s ease,transform .65s ease}
.reveal.revealed{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-title,.hero-subtitle,.hero-actions,.hero-stats{animation:none}
  html{scroll-behavior:auto}
}
/* ===== Responsive ===== */
@media(max-width:767.98px){
  .hero-section{min-height:88vh;padding-top:56px}
  .hero-title{font-size:36px}
  .hero-title .hero-title-sub{font-size:28px}
  .hero-subtitle{font-size:15px}
  .hero-stats{flex-direction:column;gap:20px;margin-top:48px;padding-top:24px}
  .stat-item{padding:0}
  .stat-item:not(:last-child)::after{display:none}
  .stat-num{font-size:36px}
  .section-head h2{font-size:28px}
  .section-head p{font-size:15px}
  .case-body{padding:24px 20px}
  .news-item{flex-direction:column;gap:16px;padding:24px}
  .news-date-block{border-right:none;border-bottom:1px solid var(--border);padding-right:0;padding-bottom:16px;min-width:0}
  .news-more{margin-top:4px}
  .cta-form-wrap{padding:28px 20px}
  .cta-info h2{font-size:28px}
  .footer-col{margin-bottom:36px}
  .step-card{padding:28px 24px}
}
@media(max-width:575.98px){
  .hero-actions .btn{width:100%}
  .hero-actions{flex-direction:column}
  .stat-num{font-size:32px}
  .case-metric{flex-wrap:wrap}
  .news-item{padding:20px}
  .news-day{font-size:32px}
  .faq-num{min-width:28px}
  .accordion-body{padding-left:12px}
  .btn-nav-cta{width:100%}
}

/* roulang page: category1 */
:root {
            --primary: #1D3A2F;
            --primary-light: #2C4B3F;
            --primary-dark: #112920;
            --accent: #B08D57;
            --accent-light: #C5A36B;
            --bg: #F5F3EE;
            --card: #FFFFFF;
            --text: #1F2622;
            --text-muted: #6E7A72;
            --border: #E2DFD7;
            --dark-text: #EDEAE2;
            --tag-color: #8D9288;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow: 0 2px 8px rgba(29, 58, 47, 0.04);
            --shadow-hover: 0 12px 32px rgba(29, 58, 47, 0.10);
            --font-heading: "Noto Serif SC", "Source Han Serif SC", "PingFang SC", "Microsoft YaHei", serif;
            --font-body: "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            --transition: all .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1320px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ---------- Header ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            height: 64px;
            background: transparent;
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: var(--bg);
            border-bottom: .5px solid var(--border);
            box-shadow: 0 4px 20px rgba(29, 58, 47, 0.06);
        }
        .site-header .navbar {
            height: 64px;
            flex-wrap: nowrap;
        }
        .nav-layout {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-left .nav-link,
        .nav-right .nav-link {
            font-size: 15px;
            color: var(--dark-text);
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
        }
        .site-header.scrolled .nav-left .nav-link,
        .site-header.scrolled .nav-right .nav-link {
            color: var(--text);
        }
        .nav-left .nav-link::after,
        .nav-right .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width .3s ease;
        }
        .nav-left .nav-link:hover::after,
        .nav-right .nav-link:hover::after,
        .nav-left .nav-link.active::after,
        .nav-right .nav-link.active::after {
            width: 100%;
        }
        .nav-left .nav-link.active,
        .nav-right .nav-link.active {
            color: var(--accent);
        }
        .logo-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 2px;
            white-space: nowrap;
            z-index: 2;
        }
        .logo-num {
            font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
        }
        .logo-name {
            font-family: var(--font-heading);
            font-size: 24px;
            font-weight: 600;
            color: var(--dark-text);
            letter-spacing: 2px;
        }
        .site-header.scrolled .logo-name {
            color: var(--text);
        }
        .btn-nav-cta {
            background: var(--accent) !important;
            color: var(--primary) !important;
            padding: 8px 20px !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .btn-nav-cta:hover {
            background: var(--accent-light) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(176, 141, 87, 0.3);
        }
        .navbar-toggler {
            border: none;
            padding: 4px;
            color: var(--dark-text);
        }
        .site-header.scrolled .navbar-toggler {
            color: var(--text);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .mobile-menu-layout {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 16px 0 24px;
            background: var(--bg);
            border-top: 1px solid var(--border);
        }
        .mobile-menu-layout .nav-link {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
        }
        .mobile-menu-layout .nav-link.active {
            color: var(--accent);
        }
        .mobile-menu-layout .btn-nav-cta {
            text-align: center;
            border-radius: var(--radius-sm);
            margin-top: 8px;
        }

        /* ---------- Category Hero ---------- */
        .cat-hero {
            position: relative;
            min-height: 40vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 120px 0 60px;
        }
        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
        }
        .cat-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(29, 58, 47, 0.55), rgba(17, 41, 32, 0.85));
        }
        .cat-hero-content {
            position: relative;
            z-index: 2;
        }
        .cat-hero-sub {
            font-size: 14px;
            letter-spacing: 6px;
            text-transform: uppercase;
            color: rgba(237, 234, 226, 0.7);
            margin-bottom: 12px;
            font-weight: 500;
        }
        .cat-hero h1 {
            font-family: var(--font-heading);
            font-size: 42px;
            font-weight: 600;
            color: var(--dark-text);
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .cat-hero h1 span {
            color: var(--accent);
        }
        .cat-hero-desc {
            font-size: 17px;
            color: rgba(237, 234, 226, 0.9);
            max-width: 480px;
            margin-bottom: 0;
        }
        .cat-hero-line {
            width: 64px;
            height: 3px;
            background: var(--accent);
            margin-top: 18px;
            border-radius: 3px;
        }

        /* ---------- Section general ---------- */
        .section-tag {
            display: inline-block;
            background: rgba(176, 141, 87, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            padding: 4px 14px;
            border-radius: 20px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ---------- Category intro ---------- */
        .cat-intro {
            padding: 96px 0 80px;
            background: var(--card);
        }
        .cat-intro .section-tag {
            margin-bottom: 16px;
        }
        .cat-intro h2 {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            line-height: 1.3;
        }
        .cat-intro p {
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .cat-intro p:last-child {
            margin-bottom: 0;
        }
        .intro-card-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }
        .intro-card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: inherit;
            pointer-events: none;
        }
        .intro-card-img img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        /* ---------- Process ---------- */
        .cat-process {
            padding: 80px 0 96px;
            background: var(--bg);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
            align-items: start;
            position: relative;
        }
        .process-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
        }
        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(176, 141, 87, 0.35);
        }
        .process-num {
            font-size: 64px;
            font-weight: 600;
            font-variant-numeric: tabular-nums;
            color: rgba(29, 58, 47, 0.12);
            line-height: 1;
            margin-bottom: 18px;
            font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
            letter-spacing: 2px;
        }
        .process-item:hover .process-num {
            color: var(--accent);
            transition: var(--transition);
        }
        .process-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 20px;
            align-self: center;
            position: relative;
            width: 24px;
            height: 24px;
        }
        .process-arrow::before {
            content: "";
            display: block;
            width: 24px;
            height: 1px;
            background: repeating-linear-gradient(90deg, var(--accent) 0 4px, transparent 4px 8px);
            position: absolute;
            top: 50%;
        }
        .process-arrow::after {
            content: "";
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-left: 6px solid var(--accent);
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
        }

        /* ---------- Policy ---------- */
        .cat-policy {
            padding: 96px 0;
            background: var(--card);
        }
        .policy-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            height: 100%;
            transition: var(--transition);
        }
        .policy-card:hover {
            background: var(--card);
            border-color: rgba(176, 141, 87, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .policy-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .policy-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .policy-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ---------- Stats ---------- */
        .cat-stats {
            padding: 80px 0;
            background: var(--primary);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        }
        .cat-stats .stats-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-right: 1px solid rgba(237, 234, 226, 0.14);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-num {
            font-size: 44px;
            font-weight: 600;
            font-variant-numeric: tabular-nums;
            color: var(--accent);
            font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(237, 234, 226, 0.7);
            letter-spacing: 1px;
        }

        /* ---------- FAQ ---------- */
        .cat-faq {
            padding: 96px 0;
            background: var(--bg);
        }
        .cat-faq .accordion {
            margin-top: 44px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-top: 1px solid var(--border);
            border-radius: 0 !important;
        }
        .accordion-item:last-child {
            border-bottom: 1px solid var(--border);
        }
        .accordion-button {
            background: transparent;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 22px 18px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: none !important;
        }
        .accordion-button::after {
            background-image: none;
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--accent);
            transition: transform .25s ease;
            width: auto;
            height: auto;
            margin-left: 0;
            margin-right: 4px;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary);
        }
        .accordion-button:hover {
            background: rgba(176, 141, 87, 0.05);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(176, 141, 87, 0.12);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            font-variant-numeric: tabular-nums;
            flex-shrink: 0;
        }
        .accordion-body {
            padding: 4px 18px 22px 70px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ---------- CTA ---------- */
        .cat-cta {
            padding: 80px 0;
            background: var(--card);
            position: relative;
        }
        .cat-cta .cta-box {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cat-cta .cta-box::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
        }
        .cat-cta h2 {
            font-family: var(--font-heading);
            font-size: 28px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .cat-cta p {
            color: var(--text-muted);
            max-width: 420px;
            margin: 0 auto 28px;
            font-size: 15px;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary) !important;
            font-weight: 600;
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            border: none;
            transition: var(--transition);
            font-size: 16px;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 20px rgba(176, 141, 87, 0.3);
            transform: translateY(-1px);
        }
        .btn-accent:active {
            transform: translateY(0);
        }
        .btn-accent:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--primary-dark);
            padding: 64px 0 0;
            color: #9EB0A5;
        }
        .site-footer .footer-brand {
            margin-bottom: 16px;
        }
        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 2px;
            margin-bottom: 12px;
        }
        .site-footer .logo-num {
            font-size: 24px;
        }
        .site-footer .logo-name {
            font-size: 20px;
            color: var(--dark-text);
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 18px;
            font-family: var(--font-heading);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #9EB0A5;
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(237, 234, 226, 0.08);
            text-align: center;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: rgba(158, 176, 165, 0.7);
        }

        /* ---------- Mobile ---------- */
        @media (max-width: 991px) {
            .site-header {
                height: 56px;
            }
            .site-header .navbar {
                height: 56px;
            }
            .logo-center {
                position: static;
                transform: none;
                margin-right: auto;
                order: 1;
            }
            .navbar-toggler {
                order: 2;
            }
            .site-header.scrolled .navbar-toggler {
                color: var(--text);
            }
            .cat-hero {
                min-height: 50vh;
                padding: 100px 0 40px;
            }
            .cat-hero h1 {
                font-size: 34px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .process-arrow {
                display: none;
            }
            .stats-inner {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(237, 234, 226, 0.08);
            }
        }
        @media (max-width: 575px) {
            .cat-intro {
                padding: 64px 0 56px;
            }
            .cat-process {
                padding: 56px 0 64px;
            }
            .cat-policy {
                padding: 64px 0;
            }
            .cat-stats {
                padding: 56px 0;
            }
            .cat-faq {
                padding: 64px 0;
            }
            .cat-cta {
                padding: 56px 0;
            }
            .cat-cta .cta-box {
                padding: 40px 24px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-inner {
                grid-template-columns: 1fr 1fr;
            }
            .stat-num {
                font-size: 36px;
            }
            .intro-card-img img {
                height: 260px;
            }
            .accordion-button {
                font-size: 15px;
                padding: 18px 10px;
                gap: 10px;
            }
            .accordion-body {
                padding: 0 10px 18px 56px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .cat-cta h2 {
                font-size: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1D3A2F;
            --primary-light: #2C4B3F;
            --primary-dark: #112920;
            --accent: #B08D57;
            --accent-hover: #C4A06A;
            --bg: #F5F3EE;
            --card-bg: #FFFFFF;
            --text: #1F2622;
            --text-muted: #6E7A72;
            --border: #E2DFD7;
            --tag-color: #8D9288;
            --radius: 12px;
            --radius-sm: 6px;
            --shadow: 0 2px 8px rgba(29, 58, 47, 0.04);
            --shadow-hover: 0 12px 32px rgba(29, 58, 47, 0.10);
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', serif;
            --font-sans: 'Noto Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            --space-section: 96px;
            --header-h: 64px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary-light);
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        .container {
            max-width: 1320px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            :root {
                --space-section: 64px;
            }
        }

        /* ===== Buttons ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 28px;
            background: var(--primary);
            color: #EDEAE2;
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 15px;
            letter-spacing: .02em;
            transition: all .25s ease;
        }
        .btn-primary-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(29, 58, 47, 0.2);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 28px;
            background: var(--accent);
            color: var(--primary);
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: all .25s ease;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(176, 141, 87, 0.3);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 14px;
            transition: all .25s ease;
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(29, 58, 47, 0.04);
        }
        .btn-outline-custom:focus,
        .btn-primary-custom:focus,
        .btn-accent:focus {
            outline: 2px solid rgba(176, 141, 87, 0.4);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            width: 100%;
            background: transparent;
            transition: all .3s ease;
            padding: 0;
        }
        .site-header.scrolled {
            background: rgba(245, 243, 238, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(29, 58, 47, 0.06);
        }
        .site-header .navbar {
            min-height: var(--header-h);
            padding: 0;
        }
        .nav-layout {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .logo-center {
            display: flex;
            align-items: center;
            text-decoration: none;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            white-space: nowrap;
            z-index: 2;
            padding: 4px 0;
        }
        .logo-num {
            font-family: 'Barlow Condensed', 'Noto Sans SC', sans-serif;
            font-size: 26px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--primary);
            line-height: 1;
        }
        .logo-name {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1;
            margin-left: 2px;
            letter-spacing: .04em;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            position: relative;
            transition: color .2s ease;
            text-decoration: none;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .btn-nav-cta {
            background: var(--primary);
            color: #EDEAE2 !important;
            border-radius: var(--radius-sm);
            padding: 8px 22px;
            margin-left: 8px;
            transition: all .25s ease;
        }
        .btn-nav-cta:hover {
            background: var(--primary-light);
            color: #fff !important;
            transform: translateY(-1px);
        }
        .btn-nav-cta::after {
            display: none;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            padding: 6px 10px;
            z-index: 3;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(176, 141, 87, 0.4);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231D3A2F' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 24px;
            height: 24px;
        }
        .mobile-menu-layout {
            display: flex;
            flex-direction: column;
            padding: 20px 0 30px;
            gap: 4px;
        }
        .mobile-menu-layout .nav-link {
            font-size: 17px;
            padding: 12px 16px;
            border-bottom: 1px solid rgba(226, 223, 215, 0.6);
        }
        .mobile-menu-layout .nav-link::after {
            display: none;
        }
        .mobile-menu-layout .btn-nav-cta {
            margin: 14px 16px 0;
            justify-content: center;
            text-align: center;
        }
        .collapse {
            transition: all .3s ease;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 48px 0 72px;
            min-height: calc(100vh - 200px);
        }
        .article-main .container {
            max-width: 960px;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 14px 0;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-item {
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color .2s ease;
        }
        .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-item.active {
            color: var(--text);
            font-weight: 500;
            max-width: 420px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: "/";
            color: #B8B2A8;
            padding: 0 8px;
        }

        /* Article Header */
        .article-header {
            margin-bottom: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border);
        }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(176, 141, 87, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: .03em;
            margin-bottom: 18px;
        }
        .article-header h1 {
            font-family: var(--font-serif);
            font-size: 36px;
            line-height: 1.35;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 18px;
            letter-spacing: .01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-meta i {
            color: var(--accent);
        }

        /* Article Content */
        .article-content {
            max-width: 720px;
            margin: 0 auto 56px;
            font-size: 16px;
            line-height: 1.85;
            color: #2A302B;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 600;
            color: var(--text);
            margin: 40px 0 16px;
            padding-top: 8px;
            position: relative;
        }
        .article-content h2::before {
            content: "";
            display: inline-block;
            width: 4px;
            height: 20px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 10px;
            vertical-align: middle;
        }
        .article-content h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
            margin: 32px 0 12px;
        }
        .article-content blockquote {
            margin: 32px 0;
            padding: 16px 24px;
            background: var(--bg);
            border-left: 4px solid var(--primary);
            border-radius: 0 8px 8px 0;
            font-size: 16px;
            color: var(--text-muted);
            font-style: normal;
            line-height: 1.75;
        }
        .article-content blockquote p {
            margin-bottom: 0;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 24px;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 32px auto;
        }
        .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color .2s ease;
        }
        .article-content a:hover {
            color: var(--accent-hover);
        }
        .article-content code {
            background: #F0EDE6;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: 'SFMono-Regular', Consolas, monospace;
            color: var(--primary);
        }
        .article-content pre {
            background: #1A1E1B;
            color: #EDEAE2;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 32px 0;
            font-size: 14px;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        /* Related Section */
        .related-section {
            padding: 56px 0 40px;
            border-top: 1px solid var(--border);
            margin-top: 16px;
        }
        .related-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .related-header h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 600;
            color: var(--text);
            margin: 0;
            position: relative;
            padding-bottom: 10px;
        }
        .related-header h2::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .related-header p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
        }
        .related-card {
            display: block;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .35s ease;
            height: 100%;
            text-decoration: none;
            color: var(--text);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
            text-decoration: none;
            color: var(--text);
        }
        .related-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg);
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 20px 24px 22px;
        }
        .related-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            margin: 0 0 10px;
            font-family: var(--font-sans);
            transition: color .25s ease;
        }
        .related-card:hover .related-card-body h3 {
            color: var(--primary);
        }
        .related-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .related-card-meta span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .related-card-meta i {
            font-size: 13px;
            color: var(--accent);
        }

        /* Article Back */
        .article-back {
            padding: 32px 0 16px;
            text-align: center;
        }
        .article-back .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            transition: all .25s ease;
            text-decoration: none;
        }
        .article-back .btn-back:hover {
            border-color: var(--primary);
            background: rgba(29, 58, 47, 0.03);
            transform: translateX(-3px);
            color: var(--primary);
        }
        .article-back .btn-back i {
            color: var(--accent);
        }

        /* Empty State */
        .article-empty {
            text-align: center;
            padding: 120px 24px 80px;
        }
        .empty-icon {
            font-size: 56px;
            color: var(--border);
            margin-bottom: 24px;
        }
        .article-empty h1 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
        }
        .article-empty p {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            padding: 64px 0 0;
            color: #9EB0A5;
            font-size: 14px;
        }
        .site-footer .footer-brand {
            margin-bottom: 16px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            text-decoration: none;
            margin-bottom: 16px;
        }
        .footer-logo .logo-num {
            color: #EDEAE2;
        }
        .footer-logo .logo-name {
            color: #EDEAE2;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: #9EB0A5;
            margin: 0;
            max-width: 320px;
        }
        .footer-col h4 {
            font-family: var(--font-serif);
            font-size: 16px;
            font-weight: 600;
            color: #EDEAE2;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: #9EB0A5;
            text-decoration: none;
            transition: color .25s ease;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: #6E7A72;
            letter-spacing: .03em;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .article-main .article-header {
            animation: fadeInUp .5s ease both;
        }
        .article-main .article-content {
            animation: fadeInUp .5s ease .1s both;
        }
        .related-section {
            animation: fadeInUp .5s ease .2s both;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .logo-center {
                position: static;
                transform: none;
            }
            .nav-layout {
                justify-content: space-between;
            }
            .nav-left,
            .nav-right {
                display: none !important;
            }
            .navbar-toggler {
                display: inline-block !important;
            }
            .nav-layout {
                flex-wrap: nowrap;
            }
            .logo-center {
                order: 1;
                margin: 0 auto;
            }
            .navbar-toggler {
                order: 2;
            }
        }
        @media (max-width: 768px) {
            .article-main {
                padding: 32px 0 48px;
            }
            .article-header h1 {
                font-size: 28px;
                line-height: 1.4;
            }
            .article-header {
                margin-bottom: 28px;
                padding-bottom: 24px;
            }
            .article-content {
                font-size: 15px;
                line-height: 1.8;
            }
            .article-content h2 {
                font-size: 20px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .related-section {
                padding: 40px 0 32px;
            }
            .related-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .related-header h2 {
                font-size: 24px;
            }
            .breadcrumb-item.active {
                max-width: 240px;
            }
            .site-footer {
                padding-top: 48px;
            }
            .footer-bottom {
                margin-top: 36px;
            }
        }
        @media (max-width: 576px) {
            .article-header h1 {
                font-size: 24px;
            }
            .article-meta {
                gap: 14px;
            }
            .article-meta span {
                font-size: 13px;
            }
            .article-back {
                padding: 24px 0 8px;
            }
            .article-back .btn-back {
                width: 100%;
                justify-content: center;
            }
            .article-empty {
                padding: 80px 16px 56px;
            }
            .article-empty h1 {
                font-size: 26px;
            }
        }
        @media (max-width: 991px) and (min-width: 768px) {
            .logo-center .logo-num {
                font-size: 24px;
            }
            .logo-center .logo-name {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #1D3A2F;
  --primary-light: #2C4B3F;
  --accent: #B08D57;
  --accent-light: #C4A36C;
  --bg: #F5F3EE;
  --card-bg: #FFFFFF;
  --text: #1F2622;
  --text-secondary: #6E7A72;
  --border: #E2DFD7;
  --dark-text: #EDEAE2;
  --footer-bg: #112920;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow-sm: 0 2px 8px rgba(29, 58, 47, 0.04);
  --shadow-md: 0 12px 32px rgba(29, 58, 47, 0.10);
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
}

/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'Noto Sans SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--primary); }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1320px; }

h1, h2, h3, h4, h5 {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', STSong, serif;
  color: var(--text);
  line-height: 1.3;
  font-weight: 600;
}
::selection { background: rgba(176, 141, 87, .25); }

/* ===== Typography Help ===== */
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(176, 141, 87, .35);
  border-radius: 999px;
  padding: 4px 16px;
  background: rgba(176, 141, 87, .06);
  margin-bottom: 14px;
}
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: 32px; margin-bottom: 12px; }
.section-head p { color: var(--text-secondary); font-size: 16px; line-height: 1.8; }
.section-head.light h2 { color: var(--dark-text); }
.section-head.light p { color: rgba(237, 234, 226, .72); }

/* ===== Buttons ===== */
.btn {
  border-radius: var(--radius-sm);
  padding: 12px 30px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: .5px;
}
.btn-primary-custom {
  background: var(--primary);
  color: var(--dark-text);
}
.btn-primary-custom:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-accent {
  background: var(--accent);
  color: var(--primary);
}
.btn-accent:hover {
  background: var(--accent-light);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(176, 141, 87, .35);
}
.btn-outline-custom {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .6);
  color: var(--dark-text);
}
.btn-outline-custom:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(176, 141, 87, .08);
}
a.btn-lg { font-size: 16px; padding: 14px 36px; }
.btn:focus { box-shadow: 0 0 0 4px rgba(176, 141, 87, .25); outline: none; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  padding: 0;
  transition: var(--transition);
}
.site-header .container {
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(245, 243, 238, .97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(29, 58, 47, .08), 0 8px 24px rgba(29, 58, 47, .06);
}
.site-header.scrolled .container { border-bottom-color: transparent; }

.navbar { min-height: 64px; padding: 0; }
.nav-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  height: 64px;
}
.logo-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: baseline;
  gap: 3px;
  line-height: 1;
  z-index: 2;
  white-space: nowrap;
}
.logo-num {
  font-family: 'Barlow Condensed', 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -.5px;
  color: #fff;
  transition: var(--transition);
}
.logo-name {
  font-family: 'Noto Serif SC', serif;
  font-weight: 600;
  font-size: 22px;
  color: #fff;
  transition: var(--transition);
}
.site-header.scrolled .logo-num,
.site-header.scrolled .logo-name { color: var(--primary); }

.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: #EDEAE2;
  position: relative;
  padding: 26px 2px 22px;
  line-height: 1.2;
  letter-spacing: .3px;
  white-space: nowrap;
  transition: var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 12px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width .3s ease;
}
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }
.nav-link:hover, .nav-link.active { color: var(--accent); }
.site-header.scrolled .nav-link { color: var(--text); }
.site-header.scrolled .nav-link:hover,
.site-header.scrolled .nav-link.active { color: var(--accent); }

.btn-nav-cta {
  background: var(--accent);
  color: var(--primary) !important;
  border-radius: 6px;
  padding: 10px 22px !important;
  font-weight: 600;
  margin: 0 0 0 8px;
}
.btn-nav-cta::after { display: none; }
.btn-nav-cta:hover {
  background: var(--accent-light);
  color: var(--primary) !important;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(176, 141, 87, .3);
}
.site-header:not(.scrolled) .btn-nav-cta {
  background: var(--accent);
  color: var(--primary) !important;
}

.navbar-toggler {
  border: 1px solid rgba(255, 255, 255, .5);
  border-radius: 8px;
  padding: 8px 10px;
  transition: var(--transition);
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(176, 141, 87, .25); }
.site-header.scrolled .navbar-toggler { border-color: rgba(29, 58, 47, .4); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.92%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width: 20px;
  height: 20px;
  transition: var(--transition);
}
.site-header.scrolled .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2829,58,47,0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.mobile-menu-layout {
  padding: 16px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: rgba(245, 243, 238, .98);
}
.mobile-menu-layout .nav-link {
  color: var(--text);
  font-size: 18px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(29, 58, 47, .06);
}
.mobile-menu-layout .nav-link::after { display: none; }
.mobile-menu-layout .btn-nav-cta {
  background: var(--accent);
  color: var(--primary) !important;
  text-align: center;
  margin-top: 14px;
  padding: 14px !important;
  border-radius: 8px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
  padding: 130px 0 70px;
  overflow: hidden;
  background: var(--primary);
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: .45;
  transform: scale(1.02);
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(20, 32, 26, .92) 0%, rgba(20, 32, 26, .72) 60%, rgba(20, 32, 26, .5) 100%);
}
.banner-content {
  position: relative;
  z-index: 2;
  max-width: 1320px;
}
.breadcrumb-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 1px;
  color: rgba(237, 234, 226, .75);
  margin-bottom: 20px;
}
.breadcrumb-line a:hover { color: var(--accent); }
.breadcrumb-line i { font-size: 10px; opacity: .7; }
.page-banner h1 {
  font-size: 46px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 2px;
  line-height: 1.25;
  text-shadow: 0 2px 20px rgba(0, 0, 0, .25);
}
.banner-sub {
  font-size: 17px;
  color: rgba(237, 234, 226, .85);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 0;
}

/* ===== Section Common ===== */
.section { padding: 96px 0; }
.section-alt { background: var(--card-bg); }

/* ===== Intro Section ===== */
.intro-section {
  background: var(--bg);
  padding: 88px 0 72px;
}
.intro-wrap {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.intro-wrap p {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text);
  border-left: 3px solid var(--accent);
  padding-left: 22px;
  background: rgba(176, 141, 87, .04);
  padding-top: 12px;
  padding-bottom: 12px;
  border-radius: 0 10px 10px 0;
}
.intro-wrap p:first-child {
  font-size: 18px;
  font-weight: 500;
  color: var(--primary);
  border-left-color: var(--primary);
}

/* ===== Advantage Section ===== */
.advantage-section {
  background: var(--card-bg);
  padding-bottom: 96px;
}
.advantage-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.advantage-item {
  position: relative;
  padding: 44px 40px 48px;
  background: #fff;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  overflow: hidden;
}
.advantage-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .45s ease;
}
.advantage-item:hover::before { transform: scaleX(1); }
.advantage-item:hover {
  box-shadow: var(--shadow-md);
  z-index: 2;
  transform: translateY(-2px);
}
.advantage-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 24px;
  display: block;
  font-variant-numeric: tabular-nums;
}
.advantage-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}
.advantage-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ===== Data Section ===== */
.data-section {
  background: var(--primary);
  position: relative;
  padding: 96px 0;
}
.data-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center top;
  opacity: .18;
}
.data-section .container { position: relative; z-index: 2; }
.data-item {
  text-align: left;
  padding: 36px 28px;
  border-left: 1px solid rgba(237, 234, 226, .18);
  min-height: 180px;
  transition: var(--transition);
}
.data-item:hover {
  background: rgba(255, 255, 255, .04);
  border-left-color: var(--accent);
  transform: translateY(-2px);
}
.data-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 58px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  display: inline-block;
  font-variant-numeric: tabular-nums;
}
.data-unit {
  font-size: 20px;
  font-weight: 600;
  color: rgba(237, 234, 226, .75);
  margin-left: 4px;
}
.data-item p {
  font-size: 14.5px;
  color: rgba(237, 234, 226, .75);
  margin-top: 14px;
  letter-spacing: .5px;
  font-weight: 300;
}

/* ===== Support Section ===== */
.support-section {
  background: var(--bg);
  padding: 96px 0;
}
.support-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: var(--transition);
}
.support-img:hover {
  transform: scale(1.01);
  box-shadow: 0 16px 44px rgba(29, 58, 47, .14);
}
.support-list { margin-top: 36px; }
.support-list li {
  position: relative;
  padding: 22px 0 22px 34px;
  border-bottom: 1px dashed var(--border);
}
.support-list li:first-child { border-top: 1px dashed var(--border); }
.support-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 32px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(176, 141, 87, .15);
}
.step-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--primary);
  background: rgba(29, 58, 47, .07);
  padding: 3px 14px;
  border-radius: 999px;
  margin-bottom: 8px;
}
.support-list li p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--card-bg);
  padding: 72px 0;
}
.cta-box {
  background: linear-gradient(135deg, #F8F4EC 0%, #EFE9DE 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}
.cta-box p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  padding: 72px 0 0;
  color: #9EB0A5;
  font-size: 14.5px;
  line-height: 1.8;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin-bottom: 18px;
}
.footer-brand .logo-num {
  font-size: 26px;
  color: #fff;
}
.footer-brand .logo-name {
  font-size: 21px;
  color: #fff;
}
.footer-brand p {
  color: rgba(158, 176, 165, .8);
  max-width: 340px;
  line-height: 1.8;
  margin-bottom: 0;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #EDEAE2;
  margin-bottom: 20px;
  letter-spacing: .5px;
  font-family: 'Noto Serif SC', serif;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: #9EB0A5;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(158, 176, 165, .75);
  margin-bottom: 12px;
}
.footer-contact i {
  color: var(--accent);
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(158, 176, 165, .12);
  margin-top: 56px;
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(158, 176, 165, .6);
}
.footer-bottom p {
  margin-bottom: 0;
  letter-spacing: .3px;
}

/* ===== Scroll Animation ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.4, 0, .2, 1);
}
.fade-up.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .nav-left, .nav-right { gap: 20px; }
  .nav-link { font-size: 14px; }
  .container { max-width: 1140px; }
}

@media (max-width: 991.98px) {
  .site-header { background: rgba(245, 243, 238, .98); box-shadow: 0 1px 0 rgba(29,58,47,.08); }
  .site-header .logo-num,
  .site-header .logo-name { color: var(--primary); }
  .site-header .container { border-bottom: none; }
  .nav-layout { height: 56px; }
  .navbar-toggler { border-color: rgba(29, 58, 47, .4); }
  .navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2829,58,47,0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }
  .nav-left, .nav-right { display: none; }
  .logo-center { position: absolute; left: 50%; transform: translateX(-50%); }
  .navbar-nav { background: rgba(245, 243, 238, .98); }
  .mobile-menu-layout { background: rgba(245, 243, 238, .98); }
  .navbar { min-height: 56px; }
  .section { padding: 72px 0; }
  .page-banner { min-height: 36vh; padding: 110px 0 60px; }
  .page-banner h1 { font-size: 36px; }
  .advantage-list { grid-template-columns: 1fr; }
  .banner-bg { background-attachment: scroll; }
}

@media (max-width: 767px) {
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 26px; }
  .page-banner { min-height: 42vh; }
  .page-banner h1 { font-size: 30px; }
  .banner-sub { font-size: 15px; }
  .intro-wrap p { font-size: 15px; padding-left: 16px; }
  .advantage-item { padding: 32px 24px; }
  .data-item { padding: 24px 16px; min-height: 140px; }
  .data-num { font-size: 44px; }
  .cta-box { padding: 44px 24px; }
  .cta-box h2 { font-size: 24px; }
  .support-list li { padding-left: 26px; }
  .footer-bottom { margin-top: 40px; }
}

@media (max-width: 520px) {
  .data-item { border-left: none; border-bottom: 1px solid rgba(237,234,226,.12); padding: 22px 8px; }
  .data-item p { font-size: 13px; }
  .data-num { font-size: 38px; }
  .data-unit { font-size: 16px; }
  .section-tag { font-size: 12px; padding: 3px 12px; }
  .btn-lg { padding: 12px 28px; font-size: 15px; }
  .page-banner h1 { letter-spacing: 1px; }
  .support-img { aspect-ratio: 16 / 10; }
  .logo-name { font-size: 19px; }
  .logo-num { font-size: 24px; }
}

@media (max-width: 380px) {
  .logo-name { font-size: 17px; }
  .logo-num { font-size: 22px; }
}