/* roulang page: index */
:root{
            --primary:#0f2b46;
            --primary-light:#1c4063;
            --primary-lighter:#2c5a82;
            --accent:#d9a441;
            --accent-light:#e6b958;
            --bg:#ffffff;
            --bg-alt:#f4f7fb;
            --bg-dark:#0a1f35;
            --text:#182235;
            --text-muted:#5e6f82;
            --border:#e1e7ef;
            --radius:16px;
            --radius-sm:10px;
            --shadow:0 4px 20px rgba(15,43,70,.08);
            --shadow-lg:0 12px 40px rgba(15,43,70,.14);
            --container:1200px;
            --section-pad:90px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button{font-family:inherit;border:none;background:none;cursor:pointer}
        ul,ol{list-style:none}
        .container{max-width:var(--container);margin:0 auto;padding:0 24px}
        .site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
        .site-header.scrolled{box-shadow:0 4px 20px rgba(15,43,70,.08)}
        .nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
        .logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .logo-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:16px}
        .logo-text{font-size:20px;font-weight:700;letter-spacing:.5px;color:var(--primary);white-space:nowrap}
        .main-nav{display:flex;align-items:center}
        .nav-list{display:flex;gap:36px}
        .nav-list a{font-size:15px;font-weight:500;color:var(--text-muted);transition:color .25s;position:relative;padding:4px 0}
        .nav-list a::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:2px;background:var(--accent);transition:width .3s}
        .nav-list a:hover{color:var(--primary)}
        .nav-list a:hover::after{width:100%}
        .nav-list a.active{color:var(--primary);font-weight:600}
        .nav-list a.active::after{width:100%}
        .nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 26px;border-radius:10px;font-size:14px;font-weight:600;transition:all .3s ease;white-space:nowrap;border:1px solid transparent}
        .btn-primary{background:var(--primary);color:#fff}
        .btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 22px rgba(15,43,70,.25)}
        .btn-accent{background:var(--accent);color:#fff}
        .btn-accent:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 22px rgba(217,164,65,.35)}
        .btn-outline{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
        .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--primary)}
        .btn-light:hover{background:var(--bg-alt);transform:translateY(-2px);box-shadow:0 8px 22px rgba(255,255,255,.25)}
        .btn-sm{padding:8px 18px;font-size:13px;border-radius:8px}
        .nav-toggle{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;font-size:20px;color:var(--primary);transition:background .3s}
        .nav-toggle:hover{background:rgba(15,43,70,.06)}
        .hero{background:linear-gradient(135deg,#0a1f35 0%,#0f2b46 55%,#1c4063 100%);color:#fff;position:relative;overflow:hidden;padding:96px 0 110px}
        .hero::before{content:'';position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;background:rgba(217,164,65,.08);filter:blur(80px)}
        .hero::after{content:'';position:absolute;bottom:-160px;left:-60px;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.04);filter:blur(70px)}
        .hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;position:relative;z-index:2}
        .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:30px;padding:6px 16px;font-size:13px;font-weight:500;color:var(--accent-light);margin-bottom:22px}
        .hero-badge i{font-size:12px}
        .hero h1{font-size:clamp(32px,5vw,52px);line-height:1.25;font-weight:800;letter-spacing:1px;margin-bottom:20px}
        .hero h1 span{color:var(--accent);position:relative}
        .hero-desc{font-size:16px;line-height:1.8;color:rgba(255,255,255,.85);margin-bottom:34px;max-width:520px}
        .hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
        .hero-points{display:flex;gap:28px;flex-wrap:wrap}
        .hero-point{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.85)}
        .hero-point i{color:var(--accent);font-size:15px}
        .hero-visual{position:relative}
        .hero-img-wrap{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 25px 60px rgba(0,0,0,.35);transform:rotate(1deg);transition:transform .4s}
        .hero-img-wrap:hover{transform:rotate(0deg) scale(1.02)}
        .hero-img-wrap img{width:100%;height:360px;object-fit:cover;border-radius:20px}
        .hero-img-wrap::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 70%,rgba(10,31,53,.3));border-radius:20px}
        .hero-float-card{position:absolute;bottom:-24px;left:-28px;background:#fff;border-radius:14px;padding:16px 22px;box-shadow:0 12px 30px rgba(0,0,0,.15);display:flex;align-items:center;gap:14px;z-index:3}
        .float-icon{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:18px}
        .float-text .ft-num{font-size:18px;font-weight:800;color:var(--text)}
        .float-text .ft-label{font-size:12px;color:var(--text-muted)}
        .stats-section{position:relative;z-index:5;margin-top:-48px;padding-bottom:30px}
        .stats-bar{background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);display:grid;grid-template-columns:repeat(4,1fr);gap:0;overflow:hidden;padding:36px 20px}
        .stat-item{text-align:center;padding:10px 16px;position:relative}
        .stat-item + .stat-item::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:50px;background:var(--border)}
        .stat-num{display:block;font-size:32px;font-weight:800;color:var(--primary);line-height:1.3}
        .stat-num small{font-size:16px;color:var(--accent);font-weight:600}
        .stat-label{font-size:14px;color:var(--text-muted);margin-top:4px;display:block}
        .section{padding:var(--section-pad) 0}
        .section-alt{background:var(--bg-alt)}
        .section-header{text-align:center;max-width:680px;margin:0 auto 56px}
        .section-tag{display:inline-block;background:rgba(217,164,65,.12);color:var(--accent);border-radius:30px;padding:5px 16px;font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:14px}
        .section-header h2{font-size:32px;font-weight:800;color:var(--primary);line-height:1.3;margin-bottom:12px}
        .section-header p{color:var(--text-muted);font-size:15px;line-height:1.7}
        .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
        .about-media{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)}
        .about-media img{width:100%;height:380px;object-fit:cover}
        .about-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 75%,rgba(10,31,53,.25))}
        .about-exp{position:absolute;bottom:18px;left:18px;background:rgba(255,255,255,.95);border-radius:14px;padding:14px 20px;display:flex;align-items:center;gap:14px;z-index:2;box-shadow:0 8px 20px rgba(0,0,0,.12)}
        .about-exp i{font-size:26px;color:var(--accent)}
        .about-exp span{font-size:14px;color:var(--text);font-weight:600}
        .about-content h3{font-size:24px;font-weight:700;color:var(--primary);margin-bottom:16px;line-height:1.4}
        .about-content p{color:var(--text-muted);line-height:1.85;margin-bottom:16px}
        .about-list{margin-top:22px;display:grid;gap:14px}
        .about-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text)}
        .about-list i{color:var(--accent);margin-top:4px;font-size:16px}
        .category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
        .category-card{background:#fff;border-radius:20px;overflow:hidden;border:1px solid var(--border);transition:all .35s ease;position:relative}
        .category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
        .category-cover{position:relative;height:180px;overflow:hidden}
        .category-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
        .category-card:hover .category-cover img{transform:scale(1.05)}
        .category-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(10,31,53,.5))}
        .category-cover .cat-icon{position:absolute;bottom:14px;left:18px;z-index:2;width:42px;height:42px;border-radius:12px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 6px 16px rgba(217,164,65,.4)}
        .category-body{padding:24px 22px}
        .category-body h3{font-size:19px;font-weight:700;color:var(--primary);margin-bottom:8px}
        .category-body p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
        .category-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:color .25s}
        .category-link i{font-size:12px;transition:transform .25s}
        .category-link:hover{color:var(--accent)}
        .category-link:hover i{transform:translateX(4px)}
        .features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
        .feature-card{background:#fff;border-radius:18px;padding:32px 28px;border:1px solid var(--border);transition:all .3s ease;position:relative;overflow:hidden}
        .feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-light));transform:scaleX(0);transform-origin:left;transition:transform .4s}
        .feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
        .feature-card:hover::before{transform:scaleX(1)}
        .feature-icon{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:20px;margin-bottom:20px}
        .feature-card h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:10px}
        .feature-card p{font-size:14px;color:var(--text-muted);line-height:1.75}
        .steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
        .step-card{text-align:center;padding:36px 20px 28px;position:relative}
        .step-num{width:60px;height:60px;margin:0 auto 22px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;box-shadow:0 8px 24px rgba(15,43,70,.2);position:relative;z-index:2}
        .step-card::after{content:'';position:absolute;top:50px;left:calc(50% + 38px);width:calc(100% - 76px);height:2px;border-top:2px dashed var(--border);z-index:1}
        .step-card:last-child::after{display:none}
        .step-card h3{font-size:16px;font-weight:700;color:var(--primary);margin-bottom:8px}
        .step-card p{font-size:13px;color:var(--text-muted);line-height:1.6}
        .news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
        .news-card{display:flex;gap:18px;background:#fff;border-radius:18px;padding:22px;border:1px solid var(--border);transition:all .3s ease;cursor:pointer}
        .news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}
        .news-thumb{width:120px;height:110px;border-radius:12px;overflow:hidden;flex-shrink:0}
        .news-thumb img{width:100%;height:100%;object-fit:cover}
        .news-body{flex:1;min-width:0}
        .news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}
        .badge{display:inline-flex;align-items:center;padding:3px 12px;border-radius:20px;font-size:12px;font-weight:600;background:rgba(217,164,65,.12);color:var(--accent)}
        .news-meta time{font-size:12px;color:var(--text-muted)}
        .news-body h3{font-size:16px;font-weight:700;color:var(--primary);line-height:1.4;margin-bottom:6px}
        .news-body h3 a{transition:color .2s}
        .news-body h3 a:hover{color:var(--accent)}
        .news-body p{font-size:13px;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .empty-tip{grid-column:1/-1;text-align:center;padding:40px;background:var(--bg-alt);border-radius:16px;color:var(--text-muted);font-size:15px}
        .faq-wrap{max-width:800px;margin:0 auto;display:grid;gap:16px}
        .faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:box-shadow .3s}
        .faq-item.active{box-shadow:var(--shadow);border-color:rgba(217,164,65,.4)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:color .25s}
        .faq-question:hover{color:var(--primary)}
        .faq-question i{font-size:14px;color:var(--text-muted);transition:transform .3s,color .3s}
        .faq-item.active .faq-question i{transform:rotate(180deg);color:var(--accent)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;padding:0 24px}
        .faq-item.active .faq-answer{max-height:200px;padding:0 24px 22px}
        .faq-answer p{font-size:14px;color:var(--text-muted);line-height:1.8}
        .cta-section{background:linear-gradient(135deg,#0a1f35 0%,#0f2b46 60%,#1c4063 100%);padding:80px 0;position:relative;overflow:hidden}
        .cta-section::before{content:'';position:absolute;top:-100px;right:20px;width:300px;height:300px;border-radius:50%;background:rgba(217,164,65,.07);filter:blur(50px)}
        .cta-inner{text-align:center;position:relative;z-index:2;max-width:600px;margin:0 auto}
        .cta-inner h2{font-size:34px;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.3}
        .cta-inner p{font-size:15px;color:rgba(255,255,255,.8);margin-bottom:32px;line-height:1.7}
        .cta-inner .btn{font-size:16px;padding:14px 36px}
        .fa-cta-points{display:flex;gap:24px;justify-content:center;margin-top:28px;flex-wrap:wrap}
        .fa-cta-points span{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
        .fa-cta-points i{color:var(--accent)}
        .site-footer{background:var(--bg-dark);color:#a8b8c8;padding-top:70px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:50px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.08)}
        .footer-brand .logo{color:#fff;margin-bottom:16px}
        .footer-brand .logo-icon{background:rgba(255,255,255,.1)}
        .footer-brand .logo-text{color:#fff}
        .footer-brand p{font-size:14px;line-height:1.8;color:#8da3b5;max-width:340px}
        .footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:20px}
        .footer-col ul{display:grid;gap:12px}
        .footer-col a{font-size:14px;color:#8da3b5;transition:color .25s;display:inline-flex;align-items:center;gap:8px}
        .footer-col a i{font-size:10px;color:var(--accent);transition:transform .25s}
        .footer-col a:hover{color:var(--accent-light)}
        .footer-col a:hover i{transform:translateX(3px)}
        .footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:24px 0;flex-wrap:wrap;gap:12px}
        .footer-bottom p{font-size:13px;color:#6b8091}
        .footer-links{display:flex;gap:24px}
        .footer-links a{font-size:13px;color:#6b8091;transition:color .25s}
        .footer-links a:hover{color:var(--accent-light)}
        .mobile-menu{position:fixed;top:0;right:-280px;width:280px;height:100vh;background:#fff;z-index:200;box-shadow:-10px 0 40px rgba(0,0,0,.15);transition:right .35s ease;padding:80px 30px 30px;display:none}
        .mobile-menu.open{right:0}
        .mobile-menu ul{display:grid;gap:20px}
        .mobile-menu a{font-size:17px;font-weight:600;color:var(--text);transition:color .2s}
        .mobile-menu a:hover,.mobile-menu a.active{color:var(--accent)}
        .menu-overlay{position:fixed;inset:0;background:rgba(10,31,53,.5);z-index:190;opacity:0;visibility:hidden;transition:opacity .3s}
        .menu-overlay.show{opacity:1;visibility:visible}
        @media(max-width:1024px){
            .hero-inner{grid-template-columns:1fr;gap:48px}
            .hero-visual{max-width:560px;margin:0 auto}
            .stats-bar{grid-template-columns:repeat(2,1fr);gap:20px}
            .stat-item + .stat-item::before{display:none}
            .about-grid{grid-template-columns:1fr;gap:36px}
            .category-grid,.features-grid{grid-template-columns:repeat(2,1fr)}
            .steps-wrap{grid-template-columns:repeat(2,1fr)}
            .step-card::after{display:none}
            .footer-grid{grid-template-columns:1fr 1fr}
        }
        @media(max-width:768px){
            .nav-list{display:none}
            .nav-toggle{display:flex}
            .mobile-menu{display:block}
            .nav-actions .btn{display:none}
            .hero{padding:60px 0 90px}
            .hero h1{font-size:32px}
            .hero-desc{font-size:15px}
            .news-grid{grid-template-columns:1fr}
            .section{padding:60px 0}
            .section-header h2{font-size:26px}
            .stats-section{margin-top:-36px}
        }
        @media(max-width:520px){
            .container{padding:0 16px}
            .category-grid,.features-grid{grid-template-columns:1fr}
            .stats-bar{grid-template-columns:1fr 1fr;padding:20px 10px}
            .stat-num{font-size:24px}
            .steps-wrap{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr;gap:32px}
            .footer-bottom{flex-direction:column;text-align:center}
            .hero-points{flex-direction:column;gap:12px}
            .news-card{flex-direction:column}
            .news-thumb{width:100%;height:160px}
            .hero-float-card{left:8px;bottom:-18px;padding:12px 16px}
            .about-media img{height:280px}
            .hero-img-wrap img{height:280px}
        }
        @media(prefers-reduced-motion:reduce){
            *{transition:none!important;animation:none!important}
        }

/* roulang page: category1 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #0d3b66;
            --primary-light: #15608a;
            --primary-dark: #081f36;
            --accent: #f4a425;
            --accent-hover: #dd9015;
            --accent-soft: #fff6e5;
            --bg: #f6f8fc;
            --bg-alt: #edf1f8;
            --surface: #ffffff;
            --text: #233044;
            --text-soft: #5b6b7c;
            --text-light: #8a9aab;
            --border: #e3e9f0;
            --border-dark: #cfd9e5;
            --radius: 14px;
            --radius-lg: 24px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(10, 30, 60, 0.06);
            --shadow-md: 0 12px 32px rgba(10, 30, 60, 0.08);
            --shadow-lg: 0 24px 60px rgba(10, 30, 60, 0.14);
            --container: 1200px;
            --header-h: 76px;
            --transition: 0.25s ease;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(244, 164, 37, 0.5);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--accent);
            color: #1a1a1a;
            box-shadow: 0 8px 22px rgba(244, 164, 37, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 12px 28px rgba(244, 164, 37, 0.4);
        }

        .btn-outline {
            border-color: var(--primary);
            color: var(--primary);
            background: transparent;
        }

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

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
        }

        .btn-light:hover {
            background: var(--accent-soft);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Badges & Tags ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 600;
            background: var(--accent-soft);
            color: var(--accent-hover);
        }

        .badge-solid {
            background: var(--accent);
            color: #1a1a1a;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 13px;
            background: #eef2f8;
            color: var(--primary);
            transition: background var(--transition), color var(--transition);
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(10, 30, 60, 0.04);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 24px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            box-shadow: 0 6px 16px rgba(13, 59, 102, 0.3);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

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

        .nav-list a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-soft);
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }

        .nav-list a:hover {
            color: var(--primary);
            background: #eef2f8;
            transform: translateY(-1px);
        }

        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(13, 59, 102, 0.25);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: #eef2f8;
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--accent-soft);
        }

        /* ===== Hero Banner ===== */
        .page-hero {
            position: relative;
            padding: 92px 0 88px;
            background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-light) 100%);
            background-image: linear-gradient(120deg, rgba(8, 31, 54, 0.92) 0%, rgba(13, 59, 102, 0.88) 60%, rgba(21, 96, 138, 0.8) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
            isolation: isolate;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            right: -120px;
            bottom: -160px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(244, 164, 37, 0.28), transparent 70%);
            z-index: -1;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

        .hero-breadcrumb a:hover {
            color: var(--accent);
        }

        .hero-breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            max-width: 680px;
            letter-spacing: 1px;
        }

        .page-hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== Section Layout ===== */
        .section {
            padding: 88px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-header .badge {
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .section-header p {
            color: var(--text-soft);
            font-size: 16px;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-dark);
        }

        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .method-card {
            padding: 34px 28px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .method-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary-light));
            border-radius: 4px 4px 0 0;
        }

        .method-icon {
            width: 68px;
            height: 68px;
            margin: 0 auto 20px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            box-shadow: 0 8px 20px rgba(13, 59, 102, 0.3);
        }

        .method-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .method-card p {
            color: var(--text-soft);
            font-size: 15px;
            margin-bottom: 18px;
        }

        .method-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-hover);
            font-weight: 600;
            font-size: 15px;
        }

        .method-link i {
            transition: transform var(--transition);
        }

        .method-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 30px 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: #1a1a1a;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            box-shadow: 0 6px 14px rgba(244, 164, 37, 0.35);
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-soft);
        }

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

        .security-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .security-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .security-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 59, 102, 0.15), rgba(244, 164, 37, 0.1));
        }

        .security-content h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .security-content>p {
            color: var(--text-soft);
            margin-bottom: 28px;
        }

        .security-list {
            display: grid;
            gap: 14px;
        }

        .security-list li {
            display: flex;
            gap: 14px;
            padding: 14px 18px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            align-items: flex-start;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .security-list li:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        .security-list i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
        }

        .security-list strong {
            display: block;
            font-size: 15px;
            color: var(--primary);
            margin-bottom: 2px;
        }

        .security-list span {
            font-size: 14px;
            color: var(--text-soft);
        }

        /* ===== Guide List ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--surface);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .guide-cover {
            position: relative;
            overflow: hidden;
            height: 190px;
        }

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

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

        .guide-cover .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
        }

        .guide-body {
            padding: 24px;
        }

        .guide-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .guide-body p {
            font-size: 14px;
            color: var(--text-soft);
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .guide-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .guide-meta a:hover {
            color: var(--accent-hover);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-dark);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            background: transparent;
            text-align: left;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: #f8faff;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.8;
            border-top: 0 solid var(--border);
        }

        .faq-item.open .faq-answer {
            padding: 0 24px 20px;
            max-height: 520px;
            border-top-width: 1px;
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }

        .cta-banner {
            position: relative;
            background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 60px;
            overflow: hidden;
            text-align: center;
            color: #fff;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(244, 164, 37, 0.2);
            top: -120px;
            right: -80px;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(244, 164, 37, 0.14);
            bottom: -70px;
            left: -50px;
        }

        .cta-banner .badge {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-weight: 600;
        }

        .cta-banner h2 {
            font-size: 32px;
            font-weight: 800;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin-bottom: 10px;
        }

        .cta-banner .btn {
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 60px;
            border-top: 3px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            max-width: 360px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .footer-col ul {
            display: grid;
            gap: 10px;
        }

        .footer-col ul a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition), transform var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-col ul a i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-links {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .method-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .security-grid {
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .main-nav {
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 32px rgba(10, 30, 60, 0.1);
                padding: 12px 24px;
                display: none;
                flex-direction: column;
                align-items: stretch;
            }

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

            .nav-list {
                flex-direction: column;
                gap: 4px;
                width: 100%;
            }

            .nav-list a {
                display: block;
                padding: 12px 16px;
                width: 100%;
                border-radius: 10px;
            }

            .page-hero {
                padding: 60px 0;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .page-hero p {
                font-size: 16px;
            }

            .section {
                padding: 60px 0;
            }

            .section-header h2 {
                font-size: 26px;
            }

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

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

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

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

            .security-media img {
                min-height: 240px;
            }

            .cta-banner {
                padding: 40px 24px;
            }

            .cta-banner h2 {
                font-size: 26px;
            }

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

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

            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .logo-text {
                font-size: 19px;
            }

            .nav-actions .btn {
                display: none;
            }

            .page-hero h1 {
                font-size: 24px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .guide-cover {
                height: 170px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0e7d5c;
            --primary-2: #12a37a;
            --accent: #f0b35a;
            --dark: #0d1f1a;
            --bg: #f4f7f6;
            --white: #ffffff;
            --text: #1c2b26;
            --muted: #5f736c;
            --border: #e2e9e6;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 30px rgba(13, 31, 26, 0.08);
            --shadow-lg: 0 20px 50px rgba(13, 31, 26, 0.14);
            --container: 1200px;
            --gutter: 24px;
            --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            margin: 0;
            line-height: 1.3;
        }

        button,
        input {
            font: inherit;
            border: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }

        .section {
            padding: 84px 0;
        }

        .section-head {
            max-width: 680px;
            margin-bottom: 44px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(14, 125, 92, 0.1);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .04em;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(26px, 3.2vw, 38px);
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -.02em;
        }

        .section-desc {
            margin-top: 14px;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all .3s ease;
            text-decoration: none;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(14, 125, 92, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-2);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(14, 125, 92, 0.32);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(14, 125, 92, 0.22);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-light:hover {
            background: #f0fff8;
            color: var(--primary-2);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 34px;
            font-size: 17px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
        }

        .badge-green {
            background: rgba(14, 125, 92, 0.12);
            color: var(--primary);
        }

        .badge-amber {
            background: rgba(240, 179, 90, 0.16);
            color: #8a5a14;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -.01em;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #fff;
            border-radius: 14px;
            font-size: 18px;
            box-shadow: 0 8px 18px rgba(14, 125, 92, 0.3);
        }

        .logo-text {
            color: var(--dark);
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

        .nav-list {
            display: flex;
            gap: 6px;
        }

        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            color: var(--muted);
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(14, 125, 92, 0.08);
        }

        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 6px 16px rgba(14, 125, 92, 0.25);
        }

        .nav-list a:focus-visible {
            outline: 3px solid rgba(240, 179, 90, 0.7);
            outline-offset: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-actions .btn {
            box-shadow: 0 6px 18px rgba(14, 125, 92, 0.22);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            color: var(--dark);
            border-radius: 12px;
            font-size: 18px;
            cursor: pointer;
            transition: all .3s ease;
        }

        .nav-toggle:hover {
            background: rgba(14, 125, 92, 0.12);
            color: var(--primary);
        }

        .article-banner {
            position: relative;
            padding: 110px 0 150px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            color: #fff;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6, 28, 22, 0.94) 0%, rgba(9, 61, 48, 0.82) 55%, rgba(14, 125, 92, 0.66) 100%);
        }

        .article-banner .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
        }

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

        .breadcrumb a:hover {
            color: #ffe2a8;
        }

        .breadcrumb i {
            font-size: 12px;
            opacity: .7;
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
            max-width: 420px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.16);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.24);
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .banner-title {
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 800;
            max-width: 920px;
            line-height: 1.25;
            letter-spacing: -.02em;
            margin-bottom: 18px;
        }

        .banner-desc {
            font-size: 16px;
            line-height: 1.8;
            max-width: 680px;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 26px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta i {
            color: #ffe2a8;
        }

        .article-section {
            padding-bottom: 84px;
        }

        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 34px;
            align-items: start;
            margin-top: -56px;
        }

        .article-main {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 44px;
            position: relative;
            z-index: 3;
        }

        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            max-height: 420px;
            object-fit: cover;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #33423c;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--dark);
            margin: 32px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin: 28px 0 14px;
        }

        .article-content p {
            margin: 16px 0;
        }

        .article-content ul {
            margin: 16px 0;
            padding-left: 20px;
            list-style: disc;
        }

        .article-content ol {
            margin: 16px 0;
            padding-left: 20px;
            list-style: decimal;
        }

        .article-content li {
            margin: 8px 0;
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 18px 22px;
            background: rgba(14, 125, 92, 0.07);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #33423c;
            font-size: 15px;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 1px solid rgba(14, 125, 92, 0.3);
        }

        .article-content a:hover {
            color: var(--primary-2);
            border-bottom-color: var(--primary-2);
        }

        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }

        .article-empty i {
            font-size: 48px;
            color: var(--accent);
            margin-bottom: 18px;
        }

        .article-empty h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--muted);
            margin-bottom: 26px;
        }

        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
            z-index: 2;
        }

        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 26px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }

        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 14px;
            margin-bottom: 18px;
            border-bottom: 2px solid rgba(14, 125, 92, 0.15);
        }

        .sidebar-card h3 i {
            color: var(--primary);
        }

        .info-list li {
            display: flex;
            justify-content: space-between;
            gap: 14px;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

        .info-label {
            color: var(--muted);
            flex-shrink: 0;
        }

        .info-value {
            font-weight: 600;
            color: var(--text);
            text-align: right;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sidebar-nav li {
            margin-bottom: 8px;
        }

        .sidebar-nav li:last-child {
            margin-bottom: 0;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
            background: var(--bg);
            transition: all .3s ease;
        }

        .sidebar-nav a i {
            color: var(--primary);
            font-size: 14px;
        }

        .sidebar-nav a:hover {
            background: rgba(14, 125, 92, 0.1);
            color: var(--primary);
            transform: translateX(4px);
        }

        .sidebar-contact {
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            border: none;
            color: #fff;
        }

        .sidebar-contact h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.25);
        }

        .sidebar-contact p {
            color: rgba(255, 255, 255, 0.92);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .sidebar-contact .btn {
            background: #fff;
            color: var(--primary);
            width: 100%;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.14);
        }

        .sidebar-contact .btn:hover {
            background: #f0fff8;
            transform: translateY(-2px);
        }

        .related-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 84px 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all .35s ease;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(14, 125, 92, 0.3);
        }

        .related-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg);
        }

        .related-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }

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

        .related-card .card-body {
            padding: 22px 24px 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card .badge {
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .related-card h3 {
            font-size: 17px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .related-card h3 a:hover {
            color: var(--primary);
        }

        .related-card .card-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .card-link i {
            transition: transform .3s ease;
        }

        .related-card .card-link:hover i {
            transform: translateX(4px);
        }

        .cta-section {
            position: relative;
            padding: 88px 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(6, 28, 22, 0.96) 0%, rgba(14, 125, 92, 0.88) 100%);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            flex-wrap: wrap;
        }

        .cta-copy h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -.01em;
        }

        .cta-copy p {
            color: rgba(255, 255, 255, 0.88);
            max-width: 560px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .faq-section {
            background: var(--bg);
            padding: 84px 0;
        }

        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(14, 125, 92, 0.35);
            box-shadow: var(--shadow-lg);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--dark);
            list-style: none;
            transition: background .3s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            background: rgba(14, 125, 92, 0.04);
        }

        .faq-item .faq-icon {
            width: 34px;
            height: 34px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(14, 125, 92, 0.12);
            color: var(--primary);
            font-size: 15px;
        }

        .faq-item .faq-arrow {
            margin-left: auto;
            color: var(--muted);
            font-size: 14px;
            transition: transform .3s ease;
        }

        .faq-item[open] .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 22px 20px 70px;
            color: var(--muted);
            line-height: 1.85;
            font-size: 15px;
        }

        .site-footer {
            background: var(--dark);
            color: #b8c9c3;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 18px;
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            max-width: 360px;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

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

        .footer-col a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: #b8c9c3;
            font-size: 14px;
            transition: all .25s ease;
        }

        .footer-col a i {
            font-size: 12px;
            color: var(--primary-2);
        }

        .footer-col a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 22px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #8aa39b;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #8aa39b;
        }

        .footer-links a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            :root {
                --gutter: 20px;
            }

            .section {
                padding: 64px 0;
            }

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

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1 1 calc(50% - 12px);
            }

            .sidebar-contact {
                flex: 1 1 100%;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 52px 0;
            }

            .nav-wrap {
                height: 68px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 68px;
                right: 0;
                bottom: 0;
                width: 300px;
                background: #fff;
                box-shadow: -20px 0 40px rgba(13, 31, 26, 0.14);
                padding: 28px 22px;
                transform: translateX(100%);
                transition: transform .35s ease;
                flex: none;
                justify-content: flex-start;
                border-radius: 18px 0 0 18px;
            }

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

            .nav-list {
                flex-direction: column;
                gap: 8px;
            }

            .nav-list a {
                display: block;
                padding: 14px 18px;
                border-radius: 12px;
                font-size: 16px;
            }

            .nav-actions .btn-sm {
                display: none;
            }

            .article-banner {
                padding: 76px 0 120px;
            }

            .breadcrumb .current {
                max-width: 240px;
            }

            .article-main {
                padding: 28px 22px;
            }

            .article-sidebar {
                flex-direction: column;
            }

            .sidebar-card {
                flex: 1 1 auto;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
            }

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

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

        @media (max-width: 520px) {
            .section {
                padding: 44px 0;
            }

            .article-banner {
                padding: 60px 0 100px;
            }

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

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

            .related-card .card-media {
                aspect-ratio: 16 / 10;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

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

            .footer-links {
                justify-content: center;
            }

            .faq-answer {
                padding-left: 20px;
            }

            .faq-item summary {
                font-size: 15px;
                padding: 16px;
            }
        }

/* roulang page: category2 */
/* ==================== 设计变量 ==================== */
:root {
    --primary: #12355b;
    --primary-light: #1c4e7c;
    --primary-dark: #0b2239;
    --accent: #d4a843;
    --accent-light: #e6c877;
    --accent-dark: #b8912e;
    --bg: #f4f6fb;
    --white: #ffffff;
    --text: #1c2b3a;
    --text-light: #64748b;
    --border: #e3e9f2;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 10px rgba(18, 53, 91, 0.06);
    --shadow-md: 0 8px 28px rgba(18, 53, 91, 0.08);
    --shadow-lg: 0 18px 48px rgba(18, 53, 91, 0.14);
    --transition: all 0.3s ease;
    --content-width: 1200px;
}

/* ==================== 基础 Reset ==================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    scroll-behavior: smooth;
}

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

a:hover {
    color: var(--accent);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea {
    font-family: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    transition: var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(18, 53, 91, 0.25);
}

.btn-accent {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
}

.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 168, 67, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(18, 53, 91, 0.18);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.75);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-light {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.85);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 14px;
}

.btn:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* ==================== 标签 ==================== */
.tag,
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(18, 53, 91, 0.08);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 50px;
    letter-spacing: 0.5px;
}

.section-tag {
    background: rgba(212, 168, 67, 0.15);
    color: var(--accent-dark);
    font-weight: 700;
}

/* ==================== Header 导航 ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(227, 233, 242, 0.8);
    transition: var(--transition);
    box-shadow: 0 2px 12px rgba(18, 53, 91, 0.04);
}

.site-header.scrolled {
    box-shadow: 0 4px 24px rgba(18, 53, 91, 0.1);
    background: rgba(255, 255, 255, 0.96);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}

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

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--accent);
    border-radius: 12px;
    font-size: 18px;
    box-shadow: var(--shadow-sm);
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1px;
    white-space: nowrap;
}

.main-nav {
    margin-left: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-list a {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    position: relative;
}

.nav-list a:hover {
    color: var(--primary);
    background: rgba(18, 53, 91, 0.06);
}

.nav-list a.active {
    color: var(--white);
    background: var(--primary);
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(18, 53, 91, 0.22);
}

.nav-list a.active:hover {
    color: var(--white);
    background: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--primary);
    color: var(--white);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: var(--primary-light);
    transform: scale(1.04);
}

/* ==================== 内页 Hero ==================== */
.page-hero {
    position: relative;
    padding: 180px 0 110px;
    background-size: cover;
    background-position: center;
    color: var(--white);
    isolation: isolate;
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(11, 34, 57, 0.92) 0%, rgba(18, 53, 91, 0.82) 45%, rgba(18, 53, 91, 0.45) 100%);
    z-index: -1;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 24px;
    color: rgba(255, 255, 255, 0.75);
}

.breadcrumb a {
    color: var(--accent);
    font-weight: 500;
}

.breadcrumb a:hover {
    color: var(--accent-light);
}

.breadcrumb i {
    font-size: 12px;
    opacity: 0.6;
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 18px;
    letter-spacing: 1px;
    max-width: 680px;
}

.page-hero .hero-lead {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* ==================== 通用 Section ==================== */
.section {
    padding: 90px 0;
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 52px;
}

.section-head h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin: 16px 0 12px;
    line-height: 1.3;
}

.section-head p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

.section-head.left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
}

/* ==================== 新手四步 ==================== */
.steps-section {
    background: var(--white);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    position: relative;
}

.steps-grid::before {
    content: "";
    position: absolute;
    top: 44px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--primary-light));
    opacity: 0.2;
    z-index: 0;
}

.step-card {
    position: relative;
    z-index: 1;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 36px 28px 32px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.step-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(212, 168, 67, 0.4);
}

.step-num {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
    color: rgba(18, 53, 91, 0.08);
    letter-spacing: -2px;
}

.step-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--accent);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ==================== 帮助主题卡片 ==================== */
.topics-section {
    background: var(--bg);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.topic-card {
    display: flex;
    align-items: stretch;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(212, 168, 67, 0.45);
}

.topic-media {
    flex: 0 0 180px;
    position: relative;
    overflow: hidden;
}

.topic-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.topic-card:hover .topic-media img {
    transform: scale(1.06);
}

.topic-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 34, 57, 0.35), transparent 60%);
}

.topic-body {
    flex: 1;
    padding: 28px 26px;
    display: flex;
    flex-direction: column;
}

.topic-body .tag {
    align-self: flex-start;
    margin-bottom: 12px;
}

.topic-body h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.topic-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    flex: 1;
    margin-bottom: 16px;
}

.topic-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-dark);
}

.topic-link i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.topic-card:hover .topic-link i {
    transform: translateX(4px);
}

/* ==================== 图文指南 ==================== */
.guide-section {
    background: var(--primary-dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.guide-section::before {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(212, 168, 67, 0.1);
}

.guide-section .section-head h2 {
    color: var(--white);
}

.guide-section .section-head p {
    color: rgba(255, 255, 255, 0.6);
}

.guide-section .section-tag {
    background: rgba(212, 168, 67, 0.2);
    color: var(--accent-light);
}

.guide-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 52px;
    align-items: center;
}

.guide-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.guide-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 380px;
}

.guide-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
    line-height: 1.4;
}

.guide-content p {
    font-size: 15px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 20px;
}

.guide-list {
    margin-bottom: 28px;
}

.guide-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
    padding: 10px 0;
    line-height: 1.6;
}

.guide-list li i {
    color: var(--accent);
    font-size: 16px;
    margin-top: 4px;
    flex-shrink: 0;
}

/* ==================== FAQ ==================== */
.faq-section {
    background: var(--white);
}

.faq-wrap {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.open {
    border-color: rgba(212, 168, 67, 0.5);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--accent-dark);
}

.faq-question i {
    font-size: 14px;
    color: var(--accent);
    transition: transform 0.35s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer-inner {
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.85;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

/* ==================== CTA ==================== */
.cta-section {
    padding: 90px 0;
    background: var(--bg);
}

.cta-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-lg);
    padding: 64px 56px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-card::before {
    content: "";
    position: absolute;
    top: -60%;
    left: -30%;
    width: 80%;
    height: 160%;
    background: rgba(212, 168, 67, 0.12);
    transform: rotate(12deg);
    border-radius: 50%;
}

.cta-card::after {
    content: "";
    position: absolute;
    bottom: -80%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: rgba(255, 255, 255, 0.05);
    transform: rotate(-15deg);
    border-radius: 50%;
}

.cta-card > * {
    position: relative;
    z-index: 1;
}

.cta-card h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 14px;
}

.cta-card p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-note {
    display: block;
    margin-top: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 页脚 ==================== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
    margin-bottom: 18px;
}

.footer-brand .logo-icon {
    background: rgba(255, 255, 255, 0.12);
    color: var(--accent);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 360px;
    margin-top: 6px;
}

.footer-col h4 {
    font-size: 17px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}

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

.footer-col ul a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-col ul a i {
    font-size: 12px;
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 24px 0 30px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
    color: var(--accent);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .page-hero h1 {
        font-size: 40px;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .steps-grid::before {
        display: none;
    }

    .guide-grid {
        gap: 36px;
    }

    .cta-card {
        padding: 48px 36px;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-wrap {
        height: 64px;
    }

    .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--border);
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        box-shadow: var(--shadow-md);
    }

    .main-nav.open {
        max-height: 340px;
        padding-top: 12px;
        padding-bottom: 16px;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .nav-list a {
        font-size: 16px;
        padding: 12px 16px;
        border-radius: 10px;
        width: 100%;
    }

    .nav-list a.active {
        padding-left: 18px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .nav-actions .btn-sm {
        display: none;
    }

    .page-hero {
        padding: 140px 0 80px;
    }

    .page-hero h1 {
        font-size: 34px;
    }

    .page-hero .hero-lead {
        font-size: 16px;
    }

    .section {
        padding: 64px 0;
    }

    .section-head h2 {
        font-size: 28px;
    }

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

    .topic-media {
        flex: 0 0 150px;
    }

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

    .guide-media img {
        min-height: 260px;
    }

    .cta-card {
        padding: 40px 24px;
    }

    .cta-card h2 {
        font-size: 26px;
    }

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

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

    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 16px;
    }

    .page-hero {
        padding: 120px 0 64px;
    }

    .page-hero h1 {
        font-size: 28px;
    }

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

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

    .step-card {
        text-align: left;
        display: flex;
        align-items: flex-start;
        gap: 16px;
        padding: 24px;
    }

    .step-icon {
        margin: 0;
        flex-shrink: 0;
        width: 52px;
        height: 52px;
        font-size: 20px;
        border-radius: 14px;
    }

    .step-num {
        font-size: 32px;
        top: 12px;
        right: 16px;
    }

    .step-card h3 {
        font-size: 17px;
        margin-bottom: 4px;
    }

    .step-card p {
        font-size: 13px;
    }

    .topic-card {
        flex-direction: column;
    }

    .topic-media {
        flex: auto;
        height: 180px;
    }

    .topic-body {
        padding: 20px;
    }

    .faq-question {
        padding: 18px 18px;
        font-size: 15px;
    }

    .faq-answer-inner {
        padding: 14px 18px 18px;
    }

    .cta-buttons .btn {
        width: 100%;
    }
}

/* roulang page: category3 */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-alt: #0f172a;
            --surface: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.1);
            --space-section: 88px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.03);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text);
            white-space: nowrap;
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
        }

        .nav-list li a {
            display: block;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            transition: all 0.25s ease;
        }

        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-list li a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 26px;
            transition: all 0.25s ease;
            border: 2px solid transparent;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 8px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(37, 99, 235, 0.4);
            color: #fff;
        }

        .btn-outline {
            border-color: var(--border);
            color: var(--text);
            background: var(--surface);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

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

        .btn-light:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--bg);
            font-size: 18px;
            color: var(--text);
            align-items: center;
            justify-content: center;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark) 70%, #1e3a8a);
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 100%;
            background: url('/assets/images/backpic/back-3.png') no-repeat center/cover;
            opacity: 0.35;
            clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 10%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            backdrop-filter: blur(8px);
            margin-bottom: 20px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-banner p {
            font-size: 17px;
            max-width: 680px;
            opacity: 0.9;
            line-height: 1.8;
        }

        .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            opacity: 0.9;
        }

        .banner-meta i {
            color: var(--accent);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            padding: 20px 0;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            list-style: none;
        }

        .breadcrumb li + li::before {
            content: '›';
            margin-right: 8px;
            color: #cbd5e1;
        }

        .breadcrumb a {
            color: var(--text-weak);
        }

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

        .breadcrumb li:last-child {
            color: var(--text);
            font-weight: 500;
        }

        /* ===== Sections ===== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: var(--surface);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-header p.subtitle {
            color: var(--text-weak);
            max-width: 520px;
            margin-top: 10px;
            font-size: 15px;
        }

        .section-header .view-all {
            flex-shrink: 0;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--primary-light);
            transition: all 0.25s ease;
        }

        .section-header .view-all:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Featured Feature ===== */
        .featured-section {
            padding: 72px 0;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .featured-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

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

        .featured-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.5));
        }

        .featured-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            backdrop-filter: blur(4px);
        }

        .featured-content h3 {
            font-size: 28px;
            line-height: 1.4;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .featured-content h3 span {
            color: var(--primary);
        }

        .featured-content p {
            color: var(--text-weak);
            margin-bottom: 16px;
            line-height: 1.8;
        }

        .featured-list {
            list-style: none;
            margin: 20px 0 28px;
            display: grid;
            gap: 12px;
        }

        .featured-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
        }

        .featured-list li i {
            color: var(--primary);
            margin-top: 4px;
        }

        /* ===== News Grid ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.35s ease;
            box-shadow: var(--shadow-sm);
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.25);
        }

        .news-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-card:hover .card-img img {
            transform: scale(1.06);
        }

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.75);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
        }

        .card-body {
            padding: 24px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 10px;
        }

        .card-meta i {
            color: var(--primary);
        }

        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
            transition: color 0.25s ease;
        }

        .news-card:hover .card-body h3 {
            color: var(--primary);
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .card-link i {
            transition: transform 0.25s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Category Filter ===== */
        .filter-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }

        .filter-btn {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-weak);
            transition: all 0.25s ease;
        }

        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
        }

        /* ===== Timeline ===== */
        .timeline-section {
            background: var(--bg-alt);
            color: #fff;
        }

        .timeline-section .section-header h2 {
            color: #fff;
        }

        .timeline-section .section-header p.subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 0 40px 48px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3);
            z-index: 1;
        }

        .timeline-item:nth-child(odd)::before {
            right: -7px;
        }

        .timeline-item:nth-child(even)::before {
            left: -7px;
        }

        .timeline-date {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 13px;
            color: var(--accent);
            margin-bottom: 10px;
            font-weight: 600;
        }

        .timeline-item h4 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .timeline-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        /* ===== Stats ===== */
        .stats-section {
            padding: 64px 0;
            background: linear-gradient(135deg, var(--primary-light), #eef2ff);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item {
            padding: 32px 20px;
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-number span {
            font-size: 20px;
            font-weight: 600;
        }

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

        /* ===== Insights ===== */
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .insight-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px;
            transition: all 0.3s ease;
            display: flex;
            gap: 20px;
        }

        .insight-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .insight-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
        }

        .insight-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .insight-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .insight-meta {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 16px;
        }

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

        .insight-meta i {
            color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--surface);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg);
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
        }

        .faq-item summary {
            padding: 22px 28px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            background: var(--surface);
            border-radius: var(--radius-sm);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item[open] summary {
            border-bottom: 1px solid var(--border);
        }

        .faq-body {
            padding: 20px 28px 24px;
            background: var(--bg);
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -20px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 16px;
            opacity: 0.9;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1220;
            color: #94a3b8;
            padding: 64px 0 0;
        }

        .site-footer .logo-text {
            color: #fff;
        }

        .site-footer .logo-icon {
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 18px;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .footer-col ul {
            list-style: none;
            display: grid;
            gap: 12px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #94a3b8;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-col ul li i {
            font-size: 12px;
            color: #3b82f6;
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
        }

        .footer-links {
            display: flex;
            gap: 20px;
        }

        .footer-links a {
            color: #94a3b8;
        }

        .footer-links a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .featured-grid {
                gap: 32px;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --space-section: 60px;
            }

            .nav-wrap {
                height: 64px;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--surface);
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
                flex-direction: column;
                align-items: stretch;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
            }

            .main-nav.open {
                max-height: 320px;
            }

            .nav-list {
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
            }

            .nav-list li a {
                border-radius: 8px;
                padding: 12px 16px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-actions .btn {
                display: none;
            }

            .page-banner {
                padding: 56px 0 48px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .page-banner p {
                font-size: 15px;
            }

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

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

            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }

            .timeline::before {
                left: 24px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 64px;
                padding-right: 0;
                text-align: left !important;
            }

            .timeline-item:nth-child(even) {
                left: 0;
            }

            .timeline-item::before {
                left: 17px !important;
                right: auto !important;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 20px;
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-item {
                padding: 24px 16px;
            }

            .stat-number {
                font-size: 28px;
            }

            .insight-card {
                flex-direction: column;
                padding: 24px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

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

            .section-header h2 {
                font-size: 24px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .timeline-item {
                padding-left: 48px;
            }

            .timeline-item p {
                font-size: 13px;
            }
        }