/* roulang page: index */
:root{
  --primary:#1E8A5A;--primary-600:#146C46;--primary-050:#EAF4EE;
  --accent:#F36F21;--ink:#16191F;--ink-800:#22262D;--text-muted:#5A6472;
  --line:#E2E7E3;--bg:#F7F8F5;--card:#FFFFFF;--text-on-dark:#F2F5F3;
  --line-dark:rgba(255,255,255,.14);
  --radius-sm:8px;--radius-md:14px;--radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(22,25,31,.06);--shadow-md:0 8px 24px rgba(22,25,31,.08);--shadow-lg:0 14px 40px rgba(22,25,31,.10);
  --space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--space-5:48px;--space-6:80px;--space-7:112px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-600)}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 var(--space-3);position:relative;z-index:2}
section{padding:var(--space-6) 0}
.h-sec{font-size:2rem;font-weight:800;line-height:1.25;margin-bottom:var(--space-2);color:var(--ink)}
.h-sec-sub{font-size:1rem;color:var(--text-muted);max-width:640px;line-height:1.7;margin-bottom:var(--space-4)}
.text-ctr{text-align:center}.mx-auto{margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:10px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .18s ease;line-height:1;gap:var(--space-1)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-secondary{background:#fff;color:var(--ink);border:1.5px solid var(--ink);border-radius:10px}
.btn-secondary:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:8px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ===== Header Nav ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.96);transition:box-shadow .25s ease,border-color .25s ease;border-bottom:1px solid transparent}
.site-header.scrolled{box-shadow:var(--shadow-sm);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:62px;padding:0 var(--space-3)}
.nav-left{display:flex;align-items:center;gap:var(--space-4);flex:0 0 58%}
.brand{font-size:21px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:.5px}
.brand:hover{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:var(--space-3);list-style:none}
.main-nav a{font-size:15px;font-weight:500;color:var(--ink-800);padding:6px 0;position:relative}
.main-nav a::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);transition:width .2s ease}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary)}
.nav-right{display:flex;align-items:center;gap:var(--space-3);flex:0 0 42%;justify-content:flex-end}
.search-btn{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-muted);background:none;border:none;cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:color .2s}
.search-btn:hover{color:var(--primary)}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer;padding:8px}
.mobile-menu{display:none;position:fixed;top:62px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);z-index:999;padding:var(--space-2) var(--space-3)}
.mobile-menu a{display:block;padding:14px 8px;font-size:16px;font-weight:500;color:var(--ink-800);border-bottom:1px solid #f1f3f2}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.active{color:var(--primary)}
.mobile-menu .btn{margin-top:var(--space-2);width:100%}
body{padding-top:62px}

/* ===== Hero ===== */
.hero{position:relative;padding:var(--space-6) 0;overflow:hidden;background:linear-gradient(160deg,var(--primary-050) 0%,var(--bg) 55%)}
.hero::before{content:"";position:absolute;top:0;right:0;width:60%;height:100%;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:0.10;pointer-events:none}
.hero-grid{display:flex;align-items:center;gap:0;position:relative}
.hero-content{flex:0 0 58%;padding-right:var(--space-5)}
.hero-visual{flex:0 0 42%;position:relative}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-050);color:var(--primary-600);font-size:13px;font-weight:600;padding:6px 14px;border-radius:100px;margin-bottom:var(--space-3)}
.hero-badge i{font-size:14px}
.hero h1{font-size:clamp(2.25rem,5vw,3.5rem);font-weight:800;line-height:1.12;margin-bottom:var(--space-3);color:var(--ink)}
.hero h1 span{color:var(--primary)}
.hero-sub{font-size:17px;line-height:1.7;color:var(--text-muted);margin-bottom:var(--space-4);max-width:560px}
.hero-ctas{display:flex;gap:var(--space-2);flex-wrap:wrap;margin-bottom:var(--space-4)}
.hero-trust{display:flex;gap:var(--space-3);flex-wrap:wrap;font-size:13px;color:var(--text-muted)}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust i{color:var(--primary);font-size:14px}
.hero-visual{position:relative;min-height:540px}
.hero-img{border-radius:var(--radius-lg);width:100%;height:540px;object-fit:cover;box-shadow:var(--shadow-lg)}
.float-card{position:absolute;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:var(--space-2) var(--space-3);display:flex;align-items:center;gap:var(--space-2);z-index:2;font-size:14px}
.float-card-1{top:12%;left:-8%;border-left:4px solid var(--accent)}
.float-card-1 .fc-badge{position:absolute;top:-10px;right:-10px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:2px 10px;border-radius:100px}
.float-card-2{bottom:10%;right:-6%;border-left:4px solid var(--primary)}
.float-card .fc-label{font-size:12px;color:var(--text-muted);line-height:1.4}
.float-card .fc-value{font-size:16px;font-weight:700;color:var(--ink)}
.float-card i{font-size:20px;color:var(--primary)}

/* ===== Services ===== */
.services{background:#fff}
.services-wrap{display:flex;gap:var(--space-6);align-items:flex-start}
.services-intro{flex:0 0 38%}
.services-intro h2{font-size:2rem;font-weight:800;line-height:1.3;margin-bottom:var(--space-3);color:var(--ink)}
.services-intro p{color:var(--text-muted);line-height:1.8;margin-bottom:var(--space-4)}
.services-grid{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)}
.service-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:var(--space-4);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.service-card .sc-icon{width:48px;height:48px;background:var(--primary-050);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:20px;margin-bottom:var(--space-2)}
.service-card h3{font-size:18px;font-weight:700;margin-bottom:var(--space-1);color:var(--ink)}
.service-card p{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:var(--space-2)}
.service-card .sc-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-050);padding:2px 10px;border-radius:100px}

/* ===== Stats ===== */
.stats{background:var(--ink);color:var(--text-on-dark);padding:var(--space-6) 0}
.stats-grid{display:flex;justify-content:space-between;gap:var(--space-4);flex-wrap:wrap}
.stat-item{flex:1;min-width:140px;text-align:center;padding:var(--space-3) 0;position:relative}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:20%;bottom:20%;width:1px;background:var(--line-dark)}
.stat-num{font-family:"Oswald","Roboto Condensed","DIN Alternate",sans-serif;font-size:48px;font-weight:700;line-height:1.2;color:#fff;letter-spacing:1px}
.stat-unit{font-family:"Oswald","Roboto Condensed","DIN Alternate",sans-serif;font-size:16px;color:var(--primary);margin-left:4px}
.stat-label{font-size:14px;color:#B9C3BD;margin-top:var(--space-1)}

/* ===== Cases ===== */
.cases{background:var(--bg)}
.case-row{display:flex;align-items:center;gap:var(--space-6);margin-bottom:var(--space-6)}
.case-row:last-child{margin-bottom:0}
.case-row:nth-child(even){flex-direction:row-reverse}
.case-img{flex:0 0 48%;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.case-img img{width:100%;height:320px;object-fit:cover;transition:transform .3s ease}
.case-img:hover img{transform:scale(1.03)}
.case-content{flex:1}
.case-content .case-cat{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-050);padding:4px 14px;border-radius:100px;margin-bottom:var(--space-2)}
.case-content h3{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:var(--space-2);color:var(--ink)}
.case-content p{color:var(--text-muted);font-size:15px;line-height:1.75;margin-bottom:var(--space-3)}
.case-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.case-link:hover{color:var(--primary-600)}
.case-link i{transition:transform .18s}
.case-link:hover i{transform:translateX(4px)}

/* ===== News / CMS ===== */
.news{background:#fff}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:var(--space-4)}
.news-head .more-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.news-layout{display:flex;gap:var(--space-4)}
.news-feature{flex:0 0 72%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:box-shadow .2s ease}
.news-feature:hover{box-shadow:var(--shadow-md)}
.news-feature .nf-img{width:100%;height:280px;object-fit:cover}
.news-feature .nf-body{padding:var(--space-3)}
.news-feature .nf-title{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:var(--space-1);color:var(--ink)}
.news-feature .nf-summary{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:var(--space-2)}
.news-feature .nf-meta{display:flex;align-items:center;gap:var(--space-2);font-size:12px;color:var(--text-muted)}
.news-side{flex:1;display:flex;flex-direction:column;gap:var(--space-2)}
.news-side-item{display:flex;gap:var(--space-2);align-items:center;padding:var(--space-2);background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);transition:box-shadow .18s ease,transform .18s ease}
.news-side-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.news-side-item .ns-thumb{width:88px;height:64px;flex-shrink:0;object-fit:cover;border-radius:var(--radius-sm)}
.news-side-item .ns-body{flex:1;min-width:0}
.news-side-item .ns-title{font-size:15px;font-weight:600;line-height:1.4;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-side-item .ns-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);margin-top:4px}
.news-side-item .ns-summary{display:none}
.cat-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-050);padding:2px 10px;border-radius:100px;line-height:1.5}
.news-empty{height:280px;border:2px dashed var(--line);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2);color:var(--text-muted);font-size:15px;width:100%;grid-column:1/-1}
.news-empty i{font-size:32px;color:var(--line)}

/* ===== Solution ===== */
.solution{background:var(--primary-050)}
.solution-wrap{display:flex;gap:var(--space-6);align-items:flex-start}
.solution-timeline{flex:0 0 50%}
.timeline-item{display:flex;gap:var(--space-3);position:relative;padding-bottom:var(--space-4)}
.timeline-item:not(:last-child)::before{content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;border-left:2px dashed rgba(30,138,90,.4)}
.timeline-dot{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0;box-shadow:0 4px 12px rgba(30,138,90,.3)}
.timeline-body h3{font-size:17px;font-weight:700;margin-bottom:4px;color:var(--ink)}
.timeline-body p{font-size:14px;color:var(--text-muted);line-height:1.7}
.solution-panel{flex:1;background:var(--card);border-radius:var(--radius-lg);padding:var(--space-4);box-shadow:var(--shadow-sm)}
.solution-panel h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:var(--space-2)}
.solution-panel p{color:var(--text-muted);font-size:15px;line-height:1.75;margin-bottom:var(--space-3)}

/* ===== FAQ ===== */
.faq{background:#fff}
.faq-wrap{display:flex;gap:var(--space-6);align-items:flex-start}
.faq-intro{flex:0 0 34%}
.faq-intro h2{font-size:2rem;font-weight:800;margin-bottom:var(--space-3);color:var(--ink)}
.faq-intro p{color:var(--text-muted);line-height:1.8;margin-bottom:var(--space-4)}
.faq-acc{flex:1}
.accordion{list-style:none}
.accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--card);transition:border-color .2s ease}
.accordion-item.is-active{border-color:var(--primary)}
.accordion-title{display:flex;justify-content:space-between;align-items:center;padding:var(--space-2) var(--space-3);font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;background:#fff;border-bottom:1px solid transparent;transition:color .2s}
.accordion-title:hover{color:var(--primary);background:#fafbfa}
.accordion-item.is-active .accordion-title{color:var(--primary);border-bottom-color:var(--line)}
.faq-icon{font-size:16px;color:var(--text-muted);transition:transform .2s ease}
.accordion-item.is-active .faq-icon{transform:rotate(45deg);color:var(--primary)}
.accordion-content{padding:var(--space-3);font-size:15px;color:var(--text-muted);line-height:1.75;background:#fff}

/* ===== Contact ===== */
.contact{background:var(--bg)}
.contact-wrap{display:flex;gap:var(--space-6);align-items:stretch}
.contact-info{flex:0 0 40%;background:var(--ink);color:var(--text-on-dark);border-radius:var(--radius-lg);padding:var(--space-4);display:flex;flex-direction:column;justify-content:center}
.contact-info h3{font-size:22px;font-weight:700;margin-bottom:var(--space-3);color:#fff}
.contact-info ul{list-style:none;margin:0;padding:0}
.contact-info li{display:flex;align-items:flex-start;gap:12px;margin-bottom:var(--space-3);font-size:15px;line-height:1.6}
.contact-info li i{color:var(--primary);font-size:18px;margin-top:4px}
.contact-info .ci-label{font-size:13px;color:#B9C3BD;display:block}
.contact-form{flex:1;background:var(--card);border-radius:var(--radius-lg);padding:var(--space-4);box-shadow:var(--shadow-sm)}
.contact-form h3{font-size:20px;font-weight:700;margin-bottom:var(--space-3);color:var(--ink)}
.form-group{margin-bottom:var(--space-3)}
.form-group label{font-size:13px;font-weight:600;color:var(--ink-800);display:block;margin-bottom:8px}
.form-group input,.form-group textarea{width:100%;height:44px;border:1.5px solid #D6DCD7;border-radius:var(--radius-sm);padding:0 12px;font-size:15px;font-family:inherit;transition:border-color .2s,box-shadow .2s;background:#fff;color:var(--ink)}
.form-group textarea{height:120px;padding:12px;resize:vertical}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,138,90,.15)}
.form-group input::placeholder,.form-group textarea::placeholder{color:#9AA3AC;font-size:14px}

/* ===== Footer ===== */
.site-footer{background:var(--ink);color:var(--text-on-dark);border-top:4px solid var(--primary)}
.footer-inner{display:flex;gap:var(--space-5);padding:var(--space-6) 0;flex-wrap:wrap}
.footer-brand{flex:0 0 32%}
.footer-brand .brand{color:#fff;font-size:22px;font-weight:800;display:block;margin-bottom:var(--space-2)}
.footer-brand p{font-size:14px;color:#B9C3BD;line-height:1.7}
.footer-col{flex:1;min-width:140px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:var(--space-3);text-transform:uppercase;letter-spacing:.5px}
.footer-col a{display:block;font-size:14px;color:#B9C3BD;padding:4px 0;transition:color .2s}
.footer-col a:hover{color:var(--primary)}
.footer-copy{border-top:1px solid var(--line-dark);padding:var(--space-3) 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}

/* ===== Focus & misc ===== */
a:focus,button:focus,input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--primary);color:#fff}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .main-nav,.nav-right .search-btn{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right{gap:var(--space-1)}
  .hero{flex-direction:column;padding:var(--space-5) 0}
  .hero-content{flex:0 0 100%;padding-right:0;margin-bottom:var(--space-4)}
  .hero-visual{flex:0 0 100%}
  .hero-visual{min-height:auto}
  .hero-img{height:340px}
  .services-wrap{flex-direction:column;gap:var(--space-4)}
  .services-grid{width:100%}
  .case-row,.case-row:nth-child(even){flex-direction:column;gap:var(--space-4)}
  .case-img{flex:0 0 100%;width:100%}
  .news-layout{flex-direction:column}
  .news-feature{flex:0 0 100%}
  .news-side{width:100%}
  .solution-wrap{flex-direction:column}
  .solution-timeline{flex:0 0 100%}
  .faq-wrap{flex-direction:column}
  .faq-intro{flex:0 0 100%}
  .contact-wrap{flex-direction:column}
  .contact-info{flex:0 0 100%}
  .footer-inner{flex-direction:column;gap:var(--space-4)}
  .footer-brand{flex:0 0 100%}
}
@media(max-width:768px){
  :root{--space-6:56px}
  .h-sec{font-size:1.6rem}
  .stats-grid{flex-wrap:wrap}
  .stat-item{flex:0 0 45%;min-width:160px}
  .stat-item:nth-child(2)::before{display:none}
  .stat-num{font-size:38px}
  .services-grid{grid-template-columns:1fr}
  .float-card{display:none}
  .hero-img{height:280px}
  .case-img img{height:240px}
}
@media(max-width:480px){
  .hero h1{font-size:1.8rem}
  .hero-sub{font-size:15px}
  .hero-ctas .btn{width:100%;justify-content:center}
  .btn-secondary{margin-top:var(--space-1)}
  .case-img img{height:200px}
  .services-grid{grid-template-columns:1fr}
  .news-feature .nf-img{height:200px}
  .news-layout{gap:var(--space-3)}
  .contact-form{padding:var(--space-3)}
  .form-group input{height:44px}
  .contact-form .btn{width:100%}
  .footer-copy{font-size:12px;padding:var(--space-2) 0}
}

/* roulang page: category1 */
:root {
            --primary: #1E8A5A;
            --primary-600: #146C46;
            --primary-050: #EAF4EE;
            --accent: #F36F21;
            --ink: #16191F;
            --ink-800: #22262D;
            --text-muted: #5A6472;
            --line: #E2E7E3;
            --bg: #F7F8F5;
            --card: #FFFFFF;
            --text-on-dark: #F2F5F3;
            --line-dark: rgba(255, 255, 255, .14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(22, 25, 31, .06);
            --shadow-md: 0 8px 24px rgba(22, 25, 31, .08);
            --shadow-lg: 0 14px 40px rgba(22, 25, 31, .10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 32px;
            --space-5: 48px;
            --space-6: 80px;
            --space-7: 112px;
            --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
            --font-num: "Oswald", "Roboto Condensed", "DIN Alternate", sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.75;
            color: var(--ink-800);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: var(--primary-600);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        .grid-container {
            max-width: 1200px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .18s ease;
            font-family: var(--font-cn);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-600);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            background: var(--card);
            border-color: var(--ink);
            color: var(--ink);
        }
        .btn-outline:hover {
            background: var(--ink);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-sm {
            height: 36px;
            padding: 0 20px;
            font-size: 14px;
            border-radius: 8px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        @media(max-width:480px) {
            .btn {
                width: 100%;
            }
            .btn+.btn {
                margin-top: 12px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: rgba(255, 255, 255, .97);
            border-bottom: 1px solid var(--line);
            box-shadow: 0 1px 0 rgba(22, 25, 31, .03);
            z-index: 999;
            transition: box-shadow .25s, background .25s;
        }
        .site-header.scrolled {
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            position: relative;
        }
        .nav-left {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            width: 58%;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
            width: 42%;
            justify-content: flex-end;
        }
        .brand {
            font-size: 21px;
            font-weight: 800;
            color: var(--ink);
            white-space: nowrap;
            letter-spacing: .01em;
        }
        .brand:hover {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-800);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width .2s;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            width: 100%;
        }
        .search-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: none;
            border: none;
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-800);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 8px;
            transition: background .2s, color .2s;
            font-family: var(--font-cn);
        }
        .search-btn:hover {
            background: var(--primary-050);
            color: var(--primary);
        }
        .search-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--ink);
            cursor: pointer;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
        }
        .nav-toggle:hover {
            background: var(--primary-050);
            color: var(--primary);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        @media(max-width:1024px) {
            .header-inner {
                height: 60px;
            }
            .site-header {
                height: 60px;
            }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--line);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: transform .3s, opacity .3s, visibility .3s;
            }
            .main-nav a {
                width: 100%;
                padding: 14px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--line);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a::after {
                display: none;
            }
            .nav-left.mobile-open .main-nav {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-left {
                gap: 16px;
                justify-content: space-between;
                width: auto;
                flex: 1;
            }
            .nav-right {
                width: auto;
                gap: 8px;
            }
            .nav-right .btn-sm {
                display: none;
            }
            .search-btn span {
                display: none;
            }
            .search-btn {
                padding: 8px;
            }
        }
        @media(max-width:480px) {
            .brand {
                font-size: 18px;
            }
            .header-inner {
                gap: 8px;
            }
            .nav-left {
                gap: 8px;
            }
        }

        /* ===== Main area padding ===== */
        main {
            padding-top: 64px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--line);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--ink-800);
            font-weight: 500;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--bg) 0%, var(--primary-050) 100%);
            border-bottom: 1px solid var(--line);
            padding: 72px 0 64px;
            position: relative;
            overflow: hidden;
        }
        .category-hero .grid-x {
            align-items: center;
        }
        .category-hero-text {
            padding-right: 32px;
        }
        .category-hero .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-050);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid rgba(30, 138, 90, .18);
        }
        .category-hero h1 {
            font-size: clamp(2rem, 3.6vw, 2.9rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink);
            margin-bottom: 16px;
            letter-spacing: .01em;
        }
        .category-hero .lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .category-hero .hero-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            height: 360px;
        }
        .category-hero .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-float-card {
            position: absolute;
            bottom: 20px;
            right: -12px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 12px;
            border-left: 4px solid var(--primary);
            min-width: 200px;
        }
        .hero-float-card .icon {
            width: 40px;
            height: 40px;
            background: var(--primary-050);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .hero-float-card .num {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.1;
        }
        .hero-float-card .desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.4;
        }
        @media(max-width:1024px) {
            .category-hero {
                padding: 56px 0 48px;
            }
            .category-hero-text {
                padding-right: 0;
                margin-bottom: 32px;
            }
            .category-hero .hero-img {
                height: 280px;
            }
        }
        @media(max-width:480px) {
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-img {
                height: 220px;
            }
            .hero-float-card {
                right: 8px;
                bottom: 12px;
                min-width: 170px;
                padding: 12px 14px;
            }
        }

        /* ===== Category Main ===== */
        .category-main {
            padding: var(--space-6) 0;
        }
        .main-content {
            padding-right: 40px;
        }
        .side-col {
            position: relative;
        }
        .section-block {
            margin-bottom: var(--space-5);
        }
        .section-block:last-child {
            margin-bottom: 0;
        }
        .section-title-wrap {
            margin-bottom: var(--space-4);
            position: relative;
            padding-left: 18px;
        }
        .section-title-wrap::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            width: 5px;
            height: 24px;
            background: var(--primary);
            border-radius: 4px;
        }
        .section-title-wrap h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
        }
        .section-title-wrap p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .intro-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        /* ===== Service 2×2 Grid ===== */
        .service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .service-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .service-card .icon-wrap {
            width: 52px;
            height: 52px;
            background: var(--primary-050);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--text-muted);
        }
        .service-card .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-050);
            padding: 2px 10px;
            border-radius: 12px;
            margin-top: 12px;
        }
        @media(max-width:768px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Direction List ===== */
        .direction-list {
            list-style: none;
        }
        .direction-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
        }
        .direction-list li:last-child {
            border-bottom: none;
        }
        .direction-list .dot {
            width: 40px;
            height: 40px;
            background: var(--primary-050);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .direction-list .dir-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
        }
        .direction-list .dir-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Timeline ===== */
        .timeline-wrap {
            position: relative;
            padding-left: 40px;
        }
        .timeline-wrap::before {
            content: "";
            position: absolute;
            left: 15px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--primary-050));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 32px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item .node {
            position: absolute;
            left: -40px;
            top: 2px;
            width: 32px;
            height: 32px;
            background: var(--card);
            border: 2px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            box-shadow: 0 0 0 4px rgba(30, 138, 90, .12);
        }
        .timeline-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ===== Sidebar ===== */
        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }
        .sidebar-card:last-child {
            margin-bottom: 0;
        }
        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-050);
            position: relative;
        }
        .sidebar-card h3::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 42px;
            height: 2px;
            background: var(--primary);
        }
        .toc-list {
            list-style: none;
        }
        .toc-list li {
            margin-bottom: 4px;
        }
        .toc-list a {
            display: block;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--ink-800);
            border-radius: 8px;
            transition: background .2s, color .2s;
        }
        .toc-list a:hover {
            background: var(--primary-050);
            color: var(--primary);
        }
        .toc-list a .toc-num {
            font-family: var(--font-num);
            color: var(--primary);
            font-weight: 600;
            margin-right: 8px;
            font-size: 13px;
        }
        .related-cats {
            list-style: none;
        }
        .related-cats li {
            margin-bottom: 8px;
        }
        .related-cats a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            border-radius: 10px;
            border: 1px solid var(--line);
            background: var(--bg);
            font-size: 14px;
            font-weight: 500;
            color: var(--ink-800);
            transition: all .2s;
        }
        .related-cats a:hover {
            border-color: var(--primary);
            background: var(--primary-050);
            color: var(--primary);
        }
        .related-cats a i {
            font-size: 18px;
            color: var(--primary);
            width: 22px;
            text-align: center;
        }
        .related-cats .arrow {
            margin-left: auto;
            font-size: 12px;
            color: var(--text-muted);
            transition: transform .2s;
        }
        .related-cats a:hover .arrow {
            transform: translateX(4px);
            color: var(--primary);
        }
        @media(max-width:1024px) {
            .main-content {
                padding-right: 0;
                margin-bottom: 40px;
            }
            .side-col {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .sidebar-card {
                margin-bottom: 0;
            }
        }
        @media(max-width:768px) {
            .side-col {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Stats Band ===== */
        .stats-band {
            background: var(--ink);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-band::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
        }
        .stats-band .section-title-wrap h2 {
            color: var(--text-on-dark);
        }
        .stats-band .section-title-wrap::before {
            background: var(--primary);
        }
        .stats-band .section-title-wrap p {
            color: rgba(242, 245, 243, .75);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            border-right: 1px solid var(--line-dark);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-item .num {
            font-family: var(--font-num);
            font-size: 52px;
            font-weight: 700;
            color: var(--text-on-dark);
            line-height: 1;
            display: inline-block;
        }
        .stat-item .unit {
            font-family: var(--font-num);
            font-size: 22px;
            color: var(--primary);
            margin-left: 4px;
        }
        .stat-item .label {
            font-size: 14px;
            color: #B9C3BD;
            margin-top: 10px;
        }
        @media(max-width:768px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--line-dark);
                padding: 28px 16px;
            }
            .stat-item:nth-child(odd) {
                border-right: 1px solid var(--line-dark);
            }
            .stat-item:nth-last-child(-n+2) {
                border-bottom: none;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--space-6) 0;
        }
        .faq-section .grid-x {
            align-items: flex-start;
        }
        .faq-side {
            padding-right: 40px;
        }
        .faq-side .section-title-wrap {
            margin-bottom: 16px;
        }
        .faq-side .faq-intro {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .faq-contact-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .faq-contact-link:hover {
            color: var(--primary-600);
        }
        .accordion {
            list-style: none;
            background: transparent;
            border: none;
        }
        .accordion-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: border-color .2s, box-shadow .2s;
        }
        .accordion-item:hover {
            border-color: rgba(30, 138, 90, .4);
            box-shadow: var(--shadow-md);
        }
        .accordion-item.is-active {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            cursor: pointer;
            background: var(--card);
            position: relative;
        }
        .accordion-title:hover,
        .accordion-item.is-active .accordion-title {
            color: var(--primary);
            background: var(--primary-050);
        }
        .accordion-title::before {
            display: none;
        }
        .accordion-title::after {
            content: "+";
            font-size: 24px;
            font-weight: 400;
            color: var(--primary);
            border: none;
            background: transparent;
            width: auto;
            height: auto;
            display: inline-block;
            text-align: center;
            transition: transform .2s ease;
            margin: 0;
            position: static;
            transform: rotate(0deg);
            line-height: 1;
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(45deg);
        }
        .accordion-content {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-muted);
            border-top: 1px solid rgba(30, 138, 90, .12);
            margin: 0;
        }
        .accordion-content p {
            margin-top: 16px;
            font-size: 15px;
            color: var(--text-muted);
        }
        @media(max-width:1024px) {
            .faq-side {
                padding-right: 0;
                margin-bottom: 32px;
            }
        }

        /* ===== Other Categories ===== */
        .other-cats {
            padding: var(--space-6) 0;
            background: var(--primary-050);
            border-top: 1px solid rgba(30, 138, 90, .12);
        }
        .other-cats .section-title-wrap h2 {
            color: var(--ink);
        }
        .other-cats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .other-cat-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .18s, box-shadow .18s, border-color .18s;
            display: block;
            color: inherit;
        }
        .other-cat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .other-cat-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .other-cat-card .card-body {
            padding: 20px 20px 16px;
        }
        .other-cat-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .other-cat-card .card-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .other-cat-card .more-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .other-cat-card:hover .more-link {
            text-decoration: underline;
        }
        @media(max-width:1024px) {
            .other-cats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media(max-width:520px) {
            .other-cats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: var(--space-6) 0;
            background: var(--ink);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
        }
        .cta-section h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-on-dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(242, 245, 243, .7);
            margin-bottom: 32px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-actions .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .cta-actions .btn-primary:hover {
            background: #fff;
            color: var(--ink);
        }
        .cta-actions .btn-outline {
            border-color: rgba(255, 255, 255, .5);
            color: var(--text-on-dark);
            background: transparent;
        }
        .cta-actions .btn-outline:hover {
            background: var(--text-on-dark);
            color: var(--ink);
            border-color: var(--text-on-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink);
            padding: 64px 0 0;
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--line-dark);
        }
        .footer-brand .brand {
            color: var(--text-on-dark);
            font-size: 22px;
            font-weight: 800;
            display: inline-block;
            margin-bottom: 16px;
        }
        .footer-brand .brand:hover {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: #B9C3BD;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 16px;
            letter-spacing: .02em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: #B9C3BD;
            margin-bottom: 10px;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-copy {
            padding: 24px 0;
            font-size: 13px;
            color: rgba(242, 245, 243, .55);
            text-align: center;
            border-top: 1px solid var(--line-dark);
            margin-top: 0;
            line-height: 1.7;
        }
        .footer-copy a {
            color: rgba(242, 245, 243, .7);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-copy a:hover {
            color: var(--primary);
        }
        @media(max-width:1024px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media(max-width:520px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Foundation overrides ===== */
        .grid-container {
            max-width: 1200px;
        }
        .cell {
            min-width: 0;
        }
        a {
            text-decoration: none;
        }

        /* ===== Utility ===== */
        .text-primary {
            color: var(--primary);
        }
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-0 {
            margin-top: 0 !important;
        }
        .pt-0 {
            padding-top: 0 !important;
        }
        .pb-0 {
            padding-bottom: 0 !important;
        }

/* roulang page: article */
:root {
  --primary: #1E8A5A;
  --primary-600: #146C46;
  --primary-050: #EAF4EE;
  --accent: #F36F21;
  --ink: #16191F;
  --ink-800: #22262D;
  --text-muted: #5A6472;
  --line: #E2E7E3;
  --bg: #F7F8F5;
  --card: #FFFFFF;
  --text-on-dark: #F2F5F3;
  --line-dark: rgba(255,255,255,.14);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(22,25,31,.06);
  --shadow-md: 0 8px 24px rgba(22,25,31,.08);
  --shadow-lg: 0 14px 40px rgba(22,25,31,.10);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 80px;
  --space-7: 112px;
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: "Oswald", "Roboto Condensed", "DIN Alternate", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--primary-600); }
button { font-family: inherit; }
input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.grid-container { max-width: 1200px; }
.grid-container, .grid-x { margin-left: 0; margin-right: 0; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: background .2s ease, box-shadow .2s ease;
}
.site-header.scrolled {
  background: #fff;
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 40px;
  flex: 0 0 58%;
}
.brand {
  font-size: 21px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .5px;
  white-space: nowrap;
  line-height: 1.2;
}
.brand:hover { color: var(--primary); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 0;
  position: relative;
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width .2s ease;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--primary); }
.main-nav a.active::after { width: 100%; }
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 42%;
  justify-content: flex-end;
}
.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink-800);
  cursor: pointer;
  transition: all .18s ease;
}
.search-btn:hover {
  background: var(--primary-050);
  border-color: var(--primary);
  color: var(--primary);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all .18s ease;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-600); border-color: var(--primary-600); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline { background: #fff; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; border-color: var(--ink); transform: translateY(-1px); }
.btn-outline:active { transform: translateY(1px); }
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; border-radius: var(--radius-sm); }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: #8a93a0;
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #c4c9d0; }
.breadcrumb .current { color: var(--ink-800); font-weight: 500; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 文章头部 */
.article-head {
  padding: calc(64px + 40px) 0 32px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.article-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 14px;
  color: var(--text-muted);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i { font-size: 13px; color: var(--primary); }

/* 封面图 */
.article-cover {
  padding: 24px 0 0;
}
.cover-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 0;
  position: relative;
}
.cover-frame img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* 正文 */
.article-content {
  padding: 48px 0 56px;
}
.article-body {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.8;
  color: #2b313a;
}
.article-body p {
  margin-bottom: 28px;
  line-height: 1.8;
}
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin: 48px 0 20px;
  line-height: 1.4;
  padding-left: 14px;
  border-left: 3px solid var(--primary);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin: 40px 0 16px;
  line-height: 1.4;
}
.article-body ul,
.article-body ol {
  margin: 0 0 28px;
  padding-left: 24px;
  line-height: 1.8;
}
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 3px solid var(--primary);
  background: var(--primary-050);
  padding: 18px 22px;
  margin: 0 0 28px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #3a434d;
  font-size: 15px;
  line-height: 1.75;
}
.article-body blockquote p { margin-bottom: 0; }
.article-body img {
  border-radius: var(--radius-md);
  margin: 8px 0 16px;
  box-shadow: var(--shadow-sm);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 28px;
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.article-body table th {
  background: #f3f5f4;
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--ink-800);
  border: 1px solid var(--line);
}
.article-body table td {
  padding: 11px 14px;
  border: 1px solid var(--line);
  color: #3a434d;
}
.article-body table tr:nth-child(even) td { background: #fafbf9; }
.article-body a { color: var(--primary); border-bottom: 1px solid rgba(30,138,90,.3); }
.article-body a:hover { color: var(--primary-600); border-bottom-color: var(--primary-600); }
.article-body code {
  background: #f0f2f0;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: .9em;
}
.not-found {
  text-align: center;
  padding: 80px 0;
}
.not-found p { font-size: 18px; color: var(--text-muted); margin-bottom: 24px; }

/* 标签 + 分享 */
.article-toolbar {
  padding: 0 0 48px;
}
.toolbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--primary-050);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  transition: background .18s ease, color .18s ease;
}
.tag:hover {
  background: var(--primary);
  color: #fff;
}
.share-btns {
  display: flex;
  gap: 10px;
  align-items: center;
}
.share-label { font-size: 14px; color: var(--text-muted); }
.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .18s ease;
}
.share-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.share-btn:active { transform: translateY(0); }

/* 上一篇/下一篇 */
.article-pager {
  padding: 0 0 56px;
}
.pager-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.pager-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: all .18s ease;
  text-decoration: none;
}
.pager-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.pager-item.pager-next { text-align: right; align-items: flex-end; }
.pager-dir { font-size: 13px; color: var(--text-muted); }
.pager-title { font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.5; }

/* 返回栏目 */
.back-category {
  text-align: center;
  padding: 0 0 64px;
}

/* 相关推荐 */
.article-related {
  padding: 64px 0;
  background: #fff;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .5px;
}
.section-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.section-more:hover { color: var(--primary-600); }
.related-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .18s ease;
  height: 100%;
  text-decoration: none;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.related-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
}
.related-info { padding: 20px 20px 24px; }
.related-info .badge {
  display: inline-block;
  padding: 3px 12px;
  background: var(--primary-050);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin: 0;
}

/* CTA */
.article-cta {
  padding: 64px 0 80px;
}
.cta-box {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: 56px 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}
.cta-text h2 {
  color: var(--text-on-dark);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}
.cta-text p {
  color: #B9C3BD;
  font-size: 15px;
  margin-bottom: 0;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
  background: var(--ink);
  color: #B9C3BD;
  padding-top: 0;
}
.footer-top {
  border-top: 4px solid var(--primary);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 64px 0 48px;
}
.footer-brand .brand {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: inline-block;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: #9AA3AC;
  max-width: 320px;
  margin-bottom: 0;
}
.footer-col h4 {
  font-size: 14px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: #B9C3BD;
  line-height: 2.2;
  margin-bottom: 6px;
  transition: color .18s ease;
}
.footer-col a:hover { color: var(--primary); }
.footer-copy {
  border-top: 1px solid var(--line-dark);
  padding: 20px 0 28px;
  font-size: 13px;
  color: rgba(255,255,255,.45);
  text-align: center;
}

/* 响应式 */
@media (max-width: 1023.98px) {
  .nav-left { flex: 1; }
  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    z-index: 999;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    display: flex;
    align-items: center;
    height: 48px;
    padding: 0 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
  }
  .main-nav a:hover {
    background: var(--primary-050);
    color: var(--primary);
  }
  .main-nav a::after { display: none; }
  .main-nav a.active { background: var(--primary-050); color: var(--primary); }
  .nav-toggle { display: inline-flex; }
  .search-btn span { display: none; }
  .search-btn { width: 40px; padding: 0; justify-content: center; }
  .footer-inner { grid-template-columns: 1fr 1fr; padding: 48px 0 32px; }
  .article-title { font-size: 1.6rem; }
  .cover-frame img { height: 320px; }
  .pager-grid { grid-template-columns: 1fr; }
  .pager-item.pager-next { text-align: left; align-items: flex-start; }
  .cta-box { padding: 40px 32px; }
}
@media (max-width: 767.98px) {
  .article-head { padding-top: calc(64px + 24px); }
  .article-meta { gap: 10px; font-size: 13px; }
  .article-body { font-size: 15px; }
  .article-body h2 { font-size: 21px; }
  .article-body h3 { font-size: 18px; }
  .cover-frame img { height: 240px; }
  .toolbar-inner { flex-direction: column; align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .cta-box { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
  .cta-actions { width: 100%; flex-direction: column; }
  .cta-actions .btn { width: 100%; }
  .section-head h2 { font-size: 22px; }
  .related-info h3 { font-size: 15px; }
}
@media (max-width: 519.98px) {
  .brand { font-size: 17px; }
  .btn-sm { padding: 0 14px; font-size: 13px; }
  .article-title { font-size: 1.35rem; }
  .breadcrumb .current { max-width: 180px; }
  .pager-item { padding: 16px 18px; }
  .pager-title { font-size: 14px; }
  .tag-list .tag { font-size: 11px; padding: 4px 10px; }
  .share-btns .share-label { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* roulang page: category2 */
:root {
  --primary: #1E8A5A;
  --primary-600: #146C46;
  --primary-050: #EAF4EE;
  --accent: #F36F21;
  --ink: #16191F;
  --ink-800: #22262D;
  --text-muted: #5A6472;
  --line: #E2E7E3;
  --bg: #F7F8F5;
  --card: #FFFFFF;
  --text-on-dark: #F2F5F3;
  --line-dark: rgba(255,255,255,.14);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(22,25,31,.06);
  --shadow-md: 0 8px 24px rgba(22,25,31,.08);
  --shadow-lg: 0 14px 40px rgba(22,25,31,.10);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 80px;
  --space-7: 112px;
  --font-sans: "PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num: "Oswald","Roboto Condensed","DIN Alternate",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease}
a:hover{color:var(--primary-600)}
button{font-family:var(--font-sans);cursor:pointer;border:none;background:none}
input,textarea,select{font-family:var(--font-sans);font-size:15px}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.site-header{position:fixed;top:0;left:0;right:0;height:64px;background:var(--card);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);z-index:999;transition:background .25s ease,box-shadow .25s ease}
.site-header.scrolled{background:rgba(255,255,255,.96);box-shadow:var(--shadow-md)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-left{display:flex;align-items:center;gap:32px}
.nav-right{display:flex;align-items:center;gap:14px}
.brand{font-size:21px;font-weight:800;color:var(--ink);letter-spacing:.5px;white-space:nowrap}
.brand:hover{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:24px}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--ink-800);padding:6px 0;transition:color .2s}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);transition:width .25s ease;border-radius:2px}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{width:100%}
.search-btn{display:flex;align-items:center;gap:6px;height:36px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);color:var(--ink-800);font-size:14px;font-weight:500;transition:all .2s}
.search-btn:hover{border-color:var(--primary);color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 28px;border-radius:10px;font-size:15px;font-weight:600;transition:all .18s ease;line-height:1.2;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d95a14;color:#fff}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--ink-800);font-size:20px}
.nav-toggle:hover{background:var(--primary-050);color:var(--primary)}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;z-index:998;background:var(--card);border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);padding:8px 16px 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 8px;font-size:15px;font-weight:500;color:var(--ink-800);border-bottom:1px solid var(--line)}
.mobile-menu a.active{color:var(--primary)}
.mobile-menu .btn{width:100%;margin-top:16px}
.page-hero{background:linear-gradient(135deg,#F0F5F1 0%,#FFFFFF 60%,#EAF4EE 100%);padding:140px 0 80px;border-bottom:1px solid var(--line)}
.page-hero .grid-x{align-items:center}
.page-hero-left{padding-right:40px}
.crumbs{font-size:13px;color:var(--text-muted);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumbs a{color:var(--text-muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs span{margin:0 2px}
.crumbs .current{color:var(--ink-800);font-weight:500}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.2;margin-bottom:20px;color:var(--ink)}
.page-hero h1 em{color:var(--primary);font-style:normal}
.page-hero .lead{font-size:16px;line-height:1.8;color:var(--text-muted);max-width:600px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:var(--primary-050);color:var(--primary);font-size:12px;font-weight:600;transition:all .2s}
.tag:hover{background:var(--primary);color:#fff}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);height:420px;background:#1E2A24}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(22,25,31,.55) 100%)}
.hero-float-card{position:absolute;bottom:24px;left:24px;right:24px;z-index:2;background:rgba(255,255,255,.95);border-radius:var(--radius-md);padding:18px 22px;box-shadow:var(--shadow-md);display:flex;align-items:center;gap:16px}
.hero-float-card .fc-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-050);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.hero-float-card .fc-title{font-size:15px;font-weight:700;color:var(--ink);line-height:1.4}
.hero-float-card .fc-sub{font-size:13px;color:var(--text-muted);line-height:1.4}
.hero-badge{position:absolute;top:20px;right:20px;z-index:2;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:0 4px 12px rgba(243,111,33,.3)}
.section{padding:80px 0}
.section-alt{background:var(--bg)}
.section-head{margin-bottom:48px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--primary);letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:32px;font-weight:800;color:var(--ink);line-height:1.3;margin-bottom:14px}
.section-head p{font-size:15px;color:var(--text-muted);max-width:680px;line-height:1.7}
.content-wrap{padding:0}
.content-main{padding-right:40px}
.content-section{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;margin-bottom:24px;box-shadow:var(--shadow-sm);transition:box-shadow .25s ease}
.content-section:hover{box-shadow:var(--shadow-md)}
.content-section .cs-icon{width:56px;height:56px;border-radius:16px;background:var(--primary-050);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.content-section h3{font-size:21px;font-weight:700;color:var(--ink);margin-bottom:12px;line-height:1.4}
.content-section p{font-size:15px;color:var(--text-muted);line-height:1.8;margin-bottom:14px}
.content-section ul{list-style:none;padding:0;margin:8px 0 0}
.content-section ul li{position:relative;padding:8px 0 8px 24px;font-size:14px;color:var(--ink-800);line-height:1.7;border-bottom:1px dashed var(--line)}
.content-section ul li:last-child{border-bottom:none}
.content-section ul li::before{content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px;color:var(--primary);position:absolute;left:0;top:9px}
.content-section .cs-list{padding:0;margin:0}
.cs-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-050);padding:4px 12px;border-radius:999px;margin-bottom:14px}
.sidebar-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;margin-bottom:24px;box-shadow:var(--shadow-sm)}
.sidebar-card h4{font-size:16px;font-weight:700;color:var(--ink);padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:16px}
.sidebar-menu{list-style:none;margin:0;padding:0}
.sidebar-menu li{margin-bottom:4px}
.sidebar-menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);font-size:14px;color:var(--ink-800);font-weight:500;transition:all .2s}
.sidebar-menu a i{color:var(--primary);font-size:13px;width:18px;text-align:center}
.sidebar-menu a:hover{background:var(--primary-050);color:var(--primary);padding-left:16px}
.sidebar-related a{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);transition:all .2s}
.sidebar-related a:hover{border-color:var(--primary)}
.sidebar-related a i{color:var(--primary);font-size:12px;margin-top:6px}
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px}
.service-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm);transition:all .18s ease;position:relative;overflow:hidden}
.service-card::before{content:"";position:absolute;top:0;left:0;width:3px;height:0;background:var(--primary);transition:height .3s ease}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.service-card:hover::before{height:100%}
.service-card .sc-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-050);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.service-card h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:10px}
.service-card p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.service-card .sc-label{display:inline-block;font-size:12px;font-weight:600;color:var(--accent);background:rgba(243,111,33,.08);padding:4px 12px;border-radius:999px}
.timeline-section{background:var(--ink);color:var(--text-on-dark);padding:80px 0}
.timeline-section .section-head h2{color:#fff}
.timeline-section .section-head p{color:#B9C3BD}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:48px;position:relative}
.steps-grid::before{content:"";position:absolute;top:32px;left:8%;right:8%;border-top:2px dashed rgba(30,138,90,.5);z-index:0}
.step-item{position:relative;z-index:1;text-align:center;padding:0 8px}
.step-dot{width:64px;height:64px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;font-family:var(--font-num);margin:0 auto 20px;box-shadow:0 0 0 6px rgba(30,138,90,.2);position:relative}
.step-dot::after{content:"";position:absolute;top:9px;right:9px;width:10px;height:10px;background:var(--accent);border-radius:50%;border:2px solid #fff}
.step-item h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px}
.step-item p{font-size:13px;color:#B9C3BD;line-height:1.7}
.faq-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm)}
.accordion-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;background:var(--card)}
.accordion-item.is-active{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.accordion-title{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;transition:color .2s;line-height:1.5}
.accordion-title:hover{color:var(--primary)}
.accordion-item.is-active .accordion-title{color:var(--primary)}
.accordion-icon{width:28px;height:28px;border-radius:50%;background:var(--primary-050);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;transition:all .25s ease}
.accordion-item.is-active .accordion-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.accordion-content{padding:0 24px 22px;font-size:15px;color:var(--text-muted);line-height:1.75;display:none}
.accordion-item.is-active .accordion-content{display:block}
.cta-section{background:var(--primary);padding:64px 0;color:#fff;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-section h2{font-size:30px;font-weight:800;margin-bottom:12px}
.cta-section p{font-size:16px;color:rgba(255,255,255,.85);max-width:680px;margin-bottom:24px}
.cta-section .btn{background:#fff;color:var(--primary)}
.cta-section .btn:hover{background:var(--ink);color:#fff}
.related-links{padding:60px 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.related-card{border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;background:var(--card);transition:all .2s}
.related-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.related-card .rc-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-050);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px}
.related-card h3{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px}
.related-card p{font-size:13px;color:var(--text-muted);line-height:1.6;margin-bottom:0}
.site-footer{background:var(--ink);color:#AAB4AE;margin-top:0}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:64px 0 48px}
.footer-brand .brand{color:#fff;font-size:22px;display:inline-block;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:#9AA3AC;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.5px}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:#9AA3AC;transition:color .2s}
.footer-col a:hover{color:var(--primary)}
.footer-copy{border-top:1px solid var(--line-dark);padding:24px 0;font-size:13px;color:#8A948E;text-align:center}
.footer-top-line{border-top:4px solid var(--primary)}
.stat-bar{background:var(--ink-800);padding:56px 0;border-top:1px solid rgba(255,255,255,.06)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.stat-item{text-align:center;padding:0 24px;position:relative}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:10%;height:80%;width:1px;background:var(--line-dark)}
.stat-num{font-family:var(--font-num);font-size:44px;font-weight:700;color:#fff;line-height:1.2}
.stat-unit{font-size:16px;color:var(--primary);margin-left:4px;font-family:var(--font-num)}
.stat-label{font-size:14px;color:#B9C3BD;margin-top:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .search-btn span{display:none}
  .page-hero{padding:120px 0 60px}
  .page-hero-left{padding-right:0;margin-bottom:32px}
  .hero-visual{height:320px}
  .content-main{padding-right:0}
  .steps-grid{grid-template-columns:1fr 1fr;gap:24px}
  .steps-grid::before{display:none}
  .stat-grid{grid-template-columns:1fr 1fr;gap:32px 0}
  .stat-item + .stat-item::before{display:none}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .section-head h2{font-size:26px}
  .service-grid{grid-template-columns:1fr}
  .content-section{padding:28px 20px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0}
  .stat-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .hero-visual{height:260px}
  .hero-float-card{padding:14px 16px}
  .cta-section{padding:48px 0}
}
@media(max-width:520px){
  .brand{font-size:18px}
  .page-hero h1{font-size:1.7rem}
  .footer-inner{grid-template-columns:1fr}
  .btn{padding:0 20px}
  .hero-visual{height:220px}
  .hero-float-card .fc-icon{width:36px;height:36px;font-size:15px}
  .step-dot{width:52px;height:52px;font-size:18px}
}

/* roulang page: category3 */
:root{
  --primary:#1E8A5A;
  --primary-600:#146C46;
  --primary-050:#EAF4EE;
  --accent:#F36F21;
  --ink:#16191F;
  --ink-800:#22262D;
  --text-muted:#5A6472;
  --line:#E2E7E3;
  --bg:#F7F8F5;
  --card:#FFFFFF;
  --text-on-dark:#F2F5F3;
  --line-dark:rgba(255,255,255,.14);
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:24px;
  --shadow-sm:0 2px 8px rgba(22,25,31,.06);
  --shadow-md:0 8px 24px rgba(22,25,31,.08);
  --shadow-lg:0 14px 40px rgba(22,25,31,.10);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:80px;
  --space-7:112px;
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Noto Sans CJK SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Oswald','Roboto Condensed','DIN Alternate',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(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0}
ul,ol{list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-600)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.grid-container{max-width:1200px}

/* Header / Nav */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:999;
  height:64px;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.scrolled{
  box-shadow:var(--shadow-sm);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
}
.nav-left{
  display:flex;
  align-items:center;
  gap:32px;
  flex:0 0 58%;
}
.brand{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  letter-spacing:.5px;
  white-space:nowrap;
}
.brand:hover{color:var(--primary)}
.main-nav{
  display:flex;
  align-items:center;
  gap:24px;
}
.main-nav a{
  font-size:15px;
  font-weight:500;
  color:var(--ink-800);
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{
  color:var(--primary);
  border-bottom-color:var(--primary);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 42%;
  justify-content:flex-end;
}
.search-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  height:36px;
  padding:0 14px;
  font-size:14px;
  font-weight:500;
  color:var(--ink-800);
  cursor:pointer;
  transition:all .18s ease;
}
.search-btn:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-050);
}
.search-btn i{font-size:13px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-cn);
  font-size:15px;
  font-weight:600;
  border-radius:10px;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .12s ease,box-shadow .18s ease,border-color .18s ease;
  text-decoration:none;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  height:48px;
  padding:0 28px;
}
.btn-primary:hover{
  background:var(--primary-600);
  color:#fff;
  box-shadow:var(--shadow-sm);
}
.btn-primary:active{
  transform:translateY(1px);
}
.btn-sm{
  height:36px;
  padding:0 18px;
  font-size:14px;
  border-radius:var(--radius-sm);
}
.btn-outline{
  background:#fff;
  border:1px solid var(--ink);
  color:var(--ink);
  height:48px;
  padding:0 28px;
}
.btn-outline:hover{
  background:var(--ink);
  color:#fff;
  border-color:var(--ink);
}
.btn-outline:active{
  transform:translateY(1px);
}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  width:38px;
  height:38px;
  font-size:16px;
  color:var(--ink);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{
  border-color:var(--primary);
  color:var(--primary);
}

/* Page Hero */
.page-hero{
  padding:140px 0 60px;
  background:linear-gradient(180deg,var(--primary-050) 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
}
.breadcrumb a{
  color:var(--text-muted);
}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#B9C3BD}
.breadcrumb .current{color:var(--ink-800);font-weight:500}
.page-hero h1{
  font-size:clamp(2rem,4vw,3rem);
  font-weight:800;
  line-height:1.15;
  color:var(--ink);
  margin-bottom:16px;
}
.page-hero .lead{
  font-size:16px;
  line-height:1.75;
  color:var(--text-muted);
  max-width:560px;
  margin-bottom:24px;
}
.hero-visual{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  box-shadow:var(--shadow-md);
}
.hero-visual img{
  width:100%;
  height:320px;
  object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(22,25,31,.08) 0%,transparent 55%);
  pointer-events:none;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:20px;
}
.hero-badges span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--ink-800);
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:6px 14px;
}
.hero-badges i{
  color:var(--primary);
  font-size:12px;
}

/* Page Main */
.page-main{
  padding:60px 0 80px;
}
.section-block{
  margin-bottom:56px;
}
.section-block:last-child{
  margin-bottom:0;
}
.section-title{
  font-size:26px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:8px;
  line-height:1.3;
  position:relative;
}
.section-title::before{
  content:"";
  display:block;
  width:36px;
  height:4px;
  border-radius:2px;
  background:var(--primary);
  margin-bottom:12px;
}
.section-sub{
  font-size:15px;
  color:var(--text-muted);
  margin-bottom:24px;
  line-height:1.7;
}
.content-paragraph{
  font-size:15px;
  line-height:1.8;
  color:var(--ink-800);
  margin-bottom:20px;
}
.feature-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:16px;
}
.feature-list li{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.feature-list li:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:var(--primary);
}
.feature-list .fi{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--primary-050);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  margin-bottom:12px;
}
.feature-list h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.feature-list p{
  font-size:13.5px;
  line-height:1.65;
  color:var(--text-muted);
}

/* Scenario Cards */
.scenario-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px;
  margin-bottom:16px;
  display:flex;
  gap:16px;
  align-items:flex-start;
  transition:all .18s ease;
}
.scenario-card:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--primary);
}
.scenario-icon{
  flex:0 0 44px;
  height:44px;
  border-radius:12px;
  background:var(--primary-050);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.scenario-body h3{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
}
.scenario-body p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.65;
}

/* Timeline */
.timeline{
  position:relative;
  padding-left:36px;
  margin-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:12px;
  top:0;
  bottom:0;
  width:2px;
  border-left:2px dashed var(--line);
}
.timeline-item{
  position:relative;
  padding-bottom:28px;
}
.timeline-item:last-child{
  padding-bottom:0;
}
.timeline-node{
  position:absolute;
  left:-36px;
  top:0;
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--primary-050);
  border:2px solid var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:1;
}
.timeline-node span{
  font-family:var(--font-num);
  font-size:11px;
  font-weight:700;
  color:var(--primary);
}
.timeline-item h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:4px;
}
.timeline-item p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.65;
}

/* Accordion */
.accordion{
  margin-top:8px;
}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line)!important;
  border-radius:12px!important;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease;
}
.accordion-item.is-active{
  border-color:var(--primary)!important;
}
.accordion-title{
  font-size:15px!important;
  font-weight:600!important;
  color:var(--ink)!important;
  padding:20px 24px!important;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  line-height:1.5;
}
.accordion-title:hover{
  background:var(--primary-050)!important;
  color:var(--primary)!important;
}
.accordion-title::after{
  content:"+";
  font-size:22px;
  font-weight:400;
  color:var(--text-muted);
  transition:transform .2s ease,color .2s ease;
  flex:0 0 20px;
  text-align:center;
  line-height:1;
}
.accordion-item.is-active .accordion-title::after{
  transform:rotate(45deg);
  color:var(--primary);
}
.accordion-item.is-active .accordion-title{
  color:var(--primary)!important;
}
.accordion-content{
  padding:0 24px 20px!important;
  font-size:15px;
  color:var(--text-muted);
  line-height:1.7;
  border-top:1px solid var(--line)!important;
}
.accordion-content p{
  margin-bottom:10px;
}

/* Sidebar */
.side-bar{
  position:sticky;
  top:88px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px;
  margin-bottom:20px;
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.side-links li{
  margin-bottom:2px;
}
.side-links a{
  display:block;
  padding:8px 12px;
  font-size:14px;
  color:var(--ink-800);
  border-radius:var(--radius-sm);
  transition:background .15s ease,color .15s ease;
}
.side-links a:hover{
  background:var(--primary-050);
  color:var(--primary);
}
.side-card .tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.side-card .tag-list a{
  font-size:12.5px;
  color:var(--ink-800);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:20px;
  padding:4px 12px;
  transition:all .15s ease;
}
.side-card .tag-list a:hover{
  background:var(--primary-050);
  color:var(--primary);
  border-color:var(--primary);
}

/* CTA */
.cta-section{
  background:var(--ink);
  padding:64px 0;
  position:relative;
  border-top:4px solid var(--primary);
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-info h2{
  font-size:28px;
  font-weight:800;
  color:var(--text-on-dark);
  margin-bottom:8px;
  line-height:1.3;
}
.cta-info p{
  font-size:15px;
  color:rgba(255,255,255,.7);
  line-height:1.7;
}
.cta-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* Related */
.related-section{
  padding:64px 0;
  border-top:1px solid var(--line);
}
.related-section h2{
  font-size:24px;
  font-weight:800;
  color:var(--ink);
  margin-bottom:24px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.related-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:24px;
  transition:all .18s ease;
}
.related-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:var(--primary);
}
.related-card i{
  font-size:22px;
  color:var(--primary);
  margin-bottom:12px;
}
.related-card h3{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:6px;
}
.related-card p{
  font-size:13.5px;
  color:var(--text-muted);
  line-height:1.6;
  margin-bottom:12px;
}
.related-card a{
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.related-card a i{
  font-size:12px;
  margin:0;
}

/* Footer */
.site-footer{
  background:var(--ink);
  border-top:4px solid var(--primary);
  padding:60px 0 0;
}
.footer-inner{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand .brand{
  color:var(--text-on-dark);
  display:inline-block;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:14px;
  color:rgba(255,255,255,.7);
  line-height:1.7;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.6);
  padding:4px 0;
  transition:color .15s ease;
}
.footer-col a:hover{
  color:var(--primary);
}
.footer-copy{
  border-top:1px solid var(--line-dark);
  padding:20px 0;
  font-size:13px;
  color:rgba(255,255,255,.5);
  text-align:center;
}

/* Responsive */
@media (max-width:1024px){
  .nav-left{flex:1 1 auto}
  .main-nav{
    display:none;
    position:absolute;
    top:64px;
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 16px 16px;
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
  }
  .main-nav.open{
    display:flex;
  }
  .main-nav a{
    padding:14px 8px;
    border-bottom:none;
    border-left:2px solid transparent;
    font-size:15px;
  }
  .main-nav a.active{
    border-left-color:var(--primary);
  }
  .nav-toggle{
    display:inline-flex;
  }
  .page-hero{
    padding:110px 0 48px;
  }
  .hero-visual img{
    height:240px;
  }
  .footer-inner{
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  .related-grid{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  .page-main{
    padding:48px 0 60px;
  }
  .feature-list{
    grid-template-columns:1fr;
  }
  .side-bar{
    position:static;
    margin-top:32px;
  }
  .related-grid{
    grid-template-columns:1fr;
  }
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .footer-inner{
    grid-template-columns:1fr 1fr;
  }
  .section-title{
    font-size:22px;
  }
}
@media (max-width:520px){
  .container{
    padding:0 12px;
  }
  .nav-right{
    gap:8px;
  }
  .search-btn span{
    display:none;
  }
  .search-btn{
    width:38px;
    padding:0;
    justify-content:center;
  }
  .btn-primary{
    padding:0 20px;
  }
  .page-hero h1{
    font-size:1.8rem;
  }
  .page-hero .lead{
    font-size:15px;
  }
  .footer-inner{
    grid-template-columns:1fr;
    gap:20px;
  }
  .feature-list li{
    padding:16px;
  }
  .scenario-card{
    padding:16px;
    flex-direction:column;
  }
  .timeline{
    padding-left:28px;
  }
  .timeline-node{
    left:-28px;
    width:24px;
    height:24px;
  }
  .ctl-actions a{
    width:100%;
  }
}

/* roulang page: category4 */
:root {
  --primary: #1E8A5A;
  --primary-600: #146C46;
  --primary-050: #EAF4EE;
  --accent: #F36F21;
  --ink: #16191F;
  --ink-800: #22262D;
  --text-muted: #5A6472;
  --line: #E2E7E3;
  --bg: #F7F8F5;
  --card: #FFFFFF;
  --text-on-dark: #F2F5F3;
  --line-dark: rgba(255,255,255,.14);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(22,25,31,.06);
  --shadow-md: 0 8px 24px rgba(22,25,31,.08);
  --shadow-lg: 0 14px 40px rgba(22,25,31,.10);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 80px;
  --space-7: 112px;
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: "Oswald", "Roboto Condensed", "DIN Alternate", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-600); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.grid-container { max-width: 1200px; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  line-height: 1;
  white-space: nowrap;
}
.btn-sm { height: 36px; padding: 0 18px; font-size: 14px; border-radius: 8px; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-600); color: #fff; border-color: var(--primary-600); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-outline:active { transform: translateY(1px); }
.btn-block { width: 100%; }
.btn:disabled { background: #D1D5DB; color: #9CA3AF; cursor: not-allowed; border-color: #D1D5DB; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(247,248,245,.96);
  border-bottom: 1px solid transparent;
  z-index: 999;
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.98);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.nav-left { display: flex; align-items: center; gap: 32px; flex: 0 1 58%; }
.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .5px;
  white-space: nowrap;
  line-height: 1.2;
}
.brand:hover { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 24px; }
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  padding: 6px 0;
  position: relative;
  white-space: nowrap;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: width .2s ease;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--primary); }
.main-nav a.active::after { width: 100%; }
.nav-right { display: flex; align-items: center; gap: 12px; flex: 0 1 42%; justify-content: flex-end; }
.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 8px;
  font-family: var(--font-cn);
  transition: color .2s ease, background .2s ease;
}
.search-btn:hover { color: var(--primary); background: var(--primary-050); }
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--ink);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
}
.nav-toggle:hover { color: var(--primary); }

/* 移动端导航 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  z-index: 998;
  padding: 16px 0 24px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid #F0F2F1;
}
.mobile-menu a:hover { color: var(--primary); background: var(--primary-050); }
.mobile-menu a.active { color: var(--primary); }
.mobile-menu .btn { margin: 16px; width: calc(100% - 32px); }

/* Hero */
.page-hero {
  padding: 132px 0 64px;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items: center;
}
.hero-content .breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.hero-content .breadcrumb a { color: var(--text-muted); }
.hero-content .breadcrumb a:hover { color: var(--primary); }
.hero-content .breadcrumb span { margin: 0 6px; color: #B9C3BD; }
.hero-content h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.hero-content h1 .highlight { color: var(--primary); }
.hero-content .hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 24px;
  max-width: 540px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 28px;
}
.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.hero-badge i { color: var(--primary); font-size: 15px; }
.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 460px;
  box-shadow: var(--shadow-lg);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(22,25,31,.35) 0%, rgba(22,25,31,0) 50%);
}
.hero-float-card {
  position: absolute;
  background: rgba(255,255,255,.94);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: var(--shadow-md);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-float-card.top-right {
  top: 24px; right: 24px;
}
.hero-float-card.bottom-left {
  bottom: 24px; left: 24px;
}
.hero-float-card .fc-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--primary-050);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.hero-float-card .fc-text { line-height: 1.3; }
.hero-float-card .fc-text strong {
  display: block;
  font-size: 15px;
  color: var(--ink);
}
.hero-float-card .fc-text span {
  font-size: 12px;
  color: var(--text-muted);
}
.hero-float-card .accent-dot {
  position: absolute;
  top: -4px; right: -4px;
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid #fff;
}
.hero-cta-row {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* 板块标题 */
.section-title-wrap { margin-bottom: 48px; }
.section-title-wrap .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-050);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.section-title-wrap h2 {
  font-size: clamp(1.75rem, 3vw, 2.375rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 12px;
}
.section-title-wrap p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.75;
}

/* 板块通用 */
.section-block { padding: var(--space-6) 0; }
.section-block.alt-bg { background: #fff; }

/* 数据指标模块 */
.data-section {
  background: var(--ink);
  padding: 72px 0;
  color: var(--text-on-dark);
}
.data-section .section-title-wrap h2 { color: #fff; }
.data-section .section-title-wrap p { color: #B9C3BD; }
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 16px;
}
.data-item {
  padding: 16px 32px;
  border-right: 1px solid var(--line-dark);
  position: relative;
}
.data-item:first-child { padding-left: 0; }
.data-item:last-child { border-right: none; padding-right: 0; }
.data-item .num {
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 600;
  line-height: 1.1;
  color: #fff;
  letter-spacing: 1px;
}
.data-item .num span { font-size: 16px; font-weight: 400; margin-left: 4px; color: #B9C3BD; }
.data-item .label { font-size: 14px; color: #B9C3BD; margin-top: 8px; }

/* 卖点模块 */
.features-section {
  background: var(--bg);
  padding: var(--space-6) 0;
}
.features-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items: start;
}
.features-intro .section-title-wrap { margin-bottom: 24px; }
.features-intro p {
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 24px;
  font-size: 15px;
}
.feature-list-cta { margin-top: 32px; }
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.feature-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.feature-card .fc-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--primary-050);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}
.feature-tag {
  display: inline-flex;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-050);
  padding: 4px 10px;
  border-radius: 100px;
}

/* 场景模块 */
.scene-section { background: #fff; padding: var(--space-6) 0; }
.scene-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.scene-card {
  display: flex;
  gap: 20px;
  background: var(--bg);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow .2s ease, transform .2s ease;
}
.scene-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.scene-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 600;
  color: var(--primary);
  line-height: 1;
  flex-shrink: 0;
  background: var(--primary-050);
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scene-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.scene-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 流程时间线 */
.process-section { background: var(--bg); padding: var(--space-6) 0; }
.process-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 12px; top: 12px; bottom: 12px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--primary) 0 4px, transparent 4px 8px);
  opacity: .5;
}
.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -28px; top: 2px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--primary-050);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.timeline-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}
.timeline-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.process-right p {
  color: var(--text-muted);
  line-height: 1.75;
  font-size: 15px;
  margin-bottom: 24px;
}

/* 内容列表模块 */
.content-section { background: #fff; padding: var(--space-6) 0; }
.content-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.content-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}
.content-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.content-card .cc-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: var(--primary-050);
}
.content-card .cc-body { padding: 24px; }
.content-card .cc-tag {
  display: inline-flex;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-050);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
}
.content-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}
.content-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}
.content-card .cc-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: #9AA3AC;
  padding-top: 12px;
  border-top: 1px solid #F0F2F1;
}
.content-card .cc-meta a {
  color: var(--primary);
  font-weight: 500;
  margin-left: auto;
}

/* 侧栏 */
.sidebar { position: sticky; top: 88px; }
.sidebar-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}
.sidebar-list { list-style: none; }
.sidebar-list li { margin-bottom: 10px; }
.sidebar-list a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--ink);
  transition: background .2s ease, color .2s ease;
  border-left: 3px solid transparent;
}
.sidebar-list a:hover { background: var(--primary-050); color: var(--primary); border-left-color: var(--primary); }
.sidebar-list a.active { background: var(--primary-050); color: var(--primary); border-left-color: var(--primary); font-weight: 600; }

/* 内页文章区 */
.content-article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 32px;
}
.content-article h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-050);
}
.content-article h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 24px 0 12px;
}
.content-article p {
  font-size: 15px;
  line-height: 1.8;
  color: #3A4150;
  margin-bottom: 20px;
}
.content-article ul {
  margin: 0 0 20px;
  padding-left: 20px;
  list-style: disc;
}
.content-article li {
  font-size: 15px;
  color: #3A4150;
  margin-bottom: 8px;
  line-height: 1.7;
}
.article-sub-block {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 20px;
  border-left: 3px solid var(--primary);
}
.article-sub-block h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.article-sub-block p { margin-bottom: 0; font-size: 14px; }

/* FAQ */
.faq-section { background: var(--bg); padding: var(--space-6) 0; }
.faq-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items: start;
}
.faq-left .section-title-wrap { margin-bottom: 24px; }
.faq-left p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 32px;
}
.accordion-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.accordion-item.active { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-cn);
  transition: color .2s ease;
}
.accordion-header .acc-icon {
  font-size: 20px;
  color: var(--text-muted);
  transition: transform .2s ease, color .2s ease;
  flex-shrink: 0;
  margin-left: 16px;
  line-height: 1;
}
.accordion-item.active .accordion-header { color: var(--primary); }
.accordion-item.active .acc-icon { transform: rotate(45deg); color: var(--primary); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .2s ease;
}
.accordion-body-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* CTA */
.cta-section {
  background: var(--ink);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-left h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.cta-left p {
  color: #B9C3BD;
  font-size: 15px;
  line-height: 1.7;
  max-width: 560px;
}
.cta-right { display: flex; gap: 16px; flex-wrap: wrap; }

/* 页脚 */
.site-footer { background: var(--ink); color: #A8B0B8; margin-top: 0; }
.site-footer::before {
  content: '';
  display: block;
  height: 4px;
  background: var(--primary);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 56px 0 48px;
}
.footer-brand .brand { color: #fff; font-size: 22px; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: #A8B0B8;
  margin-top: 16px;
}
.footer-col h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: #A8B0B8;
  margin-bottom: 10px;
  transition: color .2s ease;
}
.footer-col a:hover { color: var(--primary); }
.footer-copy {
  border-top: 1px solid var(--line-dark);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,.5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-copy a { color: rgba(255,255,255,.6); }
.footer-copy a:hover { color: var(--primary); }

/* 面包屑 */
.breadcrumb-nav {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb-nav a { color: var(--text-muted); }
.breadcrumb-nav a:hover { color: var(--primary); }
.breadcrumb-nav span { margin: 0 8px; color: #B9C3BD; }

/* 其他分类 */
.more-cats {
  margin-top: 48px;
  padding: 32px;
  background: var(--bg);
  border-radius: var(--radius-md);
}
.more-cats h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}
.cat-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.cat-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 8px 16px;
  transition: all .2s ease;
}
.cat-links a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-050); }

/* 响应式 */
@media screen and (max-width: 1024px) {
  .main-nav { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .search-btn span { display: none; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { height: 380px; }
  .features-layout { grid-template-columns: 1fr; gap: 40px; }
  .process-layout { grid-template-columns: 1fr; gap: 40px; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .sidebar { position: static; }
  .content-card-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-left { flex: 1; }
  .nav-right { flex: 0 0 auto; }
}

@media screen and (max-width: 768px) {
  .page-hero { padding: 100px 0 48px; }
  .data-grid { grid-template-columns: 1fr 1fr; gap: 0; }
  .data-item { padding: 20px; border-bottom: 1px solid var(--line-dark); border-right: none; }
  .data-item:nth-child(odd) { border-right: 1px solid var(--line-dark); }
  .data-item:first-child { padding-left: 20px; }
  .data-item:last-child { padding-right: 20px; border-bottom: none; }
  .data-item:nth-child(3) { border-bottom: none; }
  .scene-grid { grid-template-columns: 1fr; gap: 16px; }
  .content-card-grid { grid-template-columns: 1fr; gap: 20px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .hero-cta-row .btn { flex: 1; }
  .section-block { padding: 48px 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .content-article { padding: 24px; }
  .footer-copy { flex-direction: column; align-items: flex-start; }
  .hero-visual { height: 300px; }
}

@media screen and (max-width: 520px) {
  body { font-size: 15px; }
  .brand { font-size: 18px; }
  .header-inner { height: 60px; }
  .site-header { height: 60px; }
  .mobile-menu { top: 60px; }
  .hero-content h1 { font-size: 1.8rem; }
  .hero-cta-row { flex-direction: column; }
  .hero-cta-row .btn { width: 100%; }
  .data-grid { grid-template-columns: 1fr; }
  .data-item { border-right: none !important; }
  .data-item:last-child { border-bottom: none; }
  .data-item .num { font-size: 38px; }
  .section-title-wrap h2 { font-size: 1.5rem; }
  .content-card .cc-img { height: 200px; }
  .timeline { padding-left: 24px; }
  .timeline-dot { left: -24px; width: 24px; height: 24px; font-size: 10px; }
  .search-btn span { display: none; }
  .btn-sm { padding: 0 14px; }
  .hero-badge { font-size: 13px; }
}