/* roulang page: index */
:root {
            --primary: #2F4F3A;
            --primary-light: #3B5F49;
            --primary-pale: #E8EDE9;
            --accent: #E8A75D;
            --accent-dark: #D8943F;
            --bg: #F7F2EA;
            --bg-soft: #EFE7D8;
            --dark: #1C261F;
            --text: #2A312B;
            --text-secondary: #657068;
            --text-inverse: #FFF9F2;
            --border: #D8CDBB;
            --shadow-sm: 0 2px 10px rgba(47,79,58,.06);
            --shadow-md: 0 8px 24px rgba(47,79,58,.14);
            --shadow-lg: 0 16px 40px rgba(47,79,58,.18);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --success: #3E7B4F;
            --warning: #C07A3E;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --transition: 180ms ease;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);min-height:100vh}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        button,input,textarea,select{font-family:inherit;font-size:inherit}
        button{cursor:pointer;border:none;background:none}
        ul,ol{list-style:none}
        :focus-visible{outline:2px solid var(--accent);outline-offset:2px}

        .container{max-width:var(--container);margin:0 auto;padding:0 20px}
        .section{padding:var(--section-pad) 0}
        .section--soft{background:var(--bg-soft)}
        .section--dark{background:var(--dark);color:var(--text-inverse)}
        .section--dark .section-title{color:var(--text-inverse)}
        .section--dark .section-subtitle{color:rgba(255,249,242,.72)}
        .section--dark .text-secondary{color:rgba(255,249,242,.72)}

        .section-title{font-size:30px;font-weight:700;line-height:1.3;color:var(--text);margin-bottom:12px;letter-spacing:.01em}
        .section-subtitle{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:36px;max-width:680px}
        .section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:36px}
        .section-head--center{text-align:center;align-items:center}
        .section-head--center .section-subtitle{margin:0 auto 24px}
        .section-head--row{flex-direction:row;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px}

        .tag-label{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-dark);letter-spacing:.08em;text-transform:uppercase;padding:4px 12px;border:1px solid var(--accent);border-radius:var(--radius-badge);background:rgba(232,167,93,.08)}
        .tag-label--solid{background:var(--accent);color:var(--text-inverse);border-color:var(--accent)}

        /* Header & Nav */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,242,234,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow var(--transition)}
        .site-header.scrolled{box-shadow:var(--shadow-sm)}
        .nav-container{max-width:var(--container);margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
        .nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .nav-logo-icon{width:38px;height:38px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .nav-logo-icon svg{width:22px;height:22px}
        .nav-logo-text{display:flex;flex-direction:column;line-height:1.15}
        .nav-logo-text strong{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.02em}
        .nav-logo-text span{font-size:11px;color:var(--text-secondary);letter-spacing:.06em}
        .nav-menu{display:flex;align-items:center;gap:4px}
        .nav-menu a{padding:8px 14px;font-size:15px;font-weight:500;color:var(--text);border-radius:var(--radius-btn);transition:color var(--transition),background var(--transition);position:relative}
        .nav-menu a:hover{color:var(--accent-dark);background:rgba(232,167,93,.08)}
        .nav-menu a.active{color:var(--primary);font-weight:600}
        .nav-menu a.active::after{content:'';position:absolute;bottom:4px;left:14px;right:14px;height:2px;background:var(--accent);border-radius:2px}
        .nav-toggle{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff}
        .nav-toggle span{width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform var(--transition),opacity var(--transition)}

        /* Mobile Nav Overlay */
        .mobile-nav{display:none;position:fixed;inset:0;z-index:2000;background:var(--primary);flex-direction:column;padding:80px 24px 40px;gap:8px}
        .mobile-nav.open{display:flex}
        .mobile-nav a{color:var(--text-inverse);font-size:20px;font-weight:600;padding:12px 0;border-bottom:1px solid rgba(255,249,242,.12)}
        .mobile-nav a.active{color:var(--accent)}
        .mobile-nav-close{position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,249,242,.3);color:var(--text-inverse);font-size:22px;display:flex;align-items:center;justify-content:center}

        /* Hero */
        .hero{position:relative;overflow:hidden;padding:80px 0 80px;background:var(--bg)}
        .hero::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/47be02e902632259.webp');background-size:cover;background-position:center;opacity:.15;pointer-events:none}
        .hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 460px;gap:50px;align-items:center}
        .hero-content{max-width:640px}
        .hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-pale);border:1px solid rgba(47,79,58,.2);padding:6px 14px;border-radius:var(--radius-badge);margin-bottom:18px}
        .hero-tag-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0}
        .hero h1{font-size:42px;font-weight:700;line-height:1.25;color:var(--primary);margin-bottom:18px;letter-spacing:.01em}
        .hero p{font-size:18px;color:var(--text-secondary);line-height:1.8;margin-bottom:28px;max-width:560px}
        .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
        .hero-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3;background:var(--bg-soft)}
        .hero-visual img{width:100%;height:100%;object-fit:cover}
        .hero-visual::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(47,79,58,.12) 0%,transparent 50%)}

        /* Buttons */
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;font-size:15px;font-weight:600;border-radius:var(--radius-btn);transition:all var(--transition);text-align:center;line-height:1.4}
        .btn--primary{background:var(--primary);color:var(--text-inverse)}
        .btn--primary:hover{background:var(--primary-light);box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .btn--accent{background:var(--accent);color:#1C261F}
        .btn--accent:hover{background:var(--accent-dark);box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .btn--outline{border:1px solid var(--primary);color:var(--primary);background:transparent}
        .btn--outline:hover{background:var(--primary-pale);border-color:var(--primary);transform:translateY(-2px)}
        .btn--outline-accent{border:1px solid var(--accent);color:var(--accent-dark);background:transparent}
        .btn--outline-accent:hover{background:rgba(232,167,93,.1);transform:translateY(-2px)}
        .btn--light{background:var(--text-inverse);color:var(--primary)}
        .btn--light:hover{background:#f0ebe3;box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .btn--lg{padding:15px 34px;font-size:16px}
        .btn .arrow{transition:transform var(--transition)}
        .btn:hover .arrow{transform:translateX(2px)}

        /* Stats */
        .stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);padding:36px 0}
        .stat-block{text-align:center;padding:20px;background:#fff;border-radius:var(--radius-card);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition)}
        .stat-block:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .stat-number{font-size:38px;font-weight:700;color:var(--primary);line-height:1.2;margin-bottom:6px}
        .stat-number span{font-size:22px;color:var(--accent-dark)}
        .stat-label{font-size:14px;color:var(--text-secondary)}

        /* Brand intro */
        .brand-intro{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
        .brand-intro-title{font-size:28px;font-weight:700;color:var(--primary);line-height:1.3}
        .brand-intro-body{display:flex;flex-direction:column;gap:14px}
        .brand-intro-body p{color:var(--text-secondary);line-height:1.8;font-size:15px}
        .brand-intro-visual{margin-top:20px;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);aspect-ratio:16/9}
        .brand-intro-visual img{width:100%;height:100%;object-fit:cover}

        /* Category entry */
        .cat-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:var(--gap)}
        .cat-card{border-radius:var(--radius-card);overflow:hidden;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition);display:flex;flex-direction:column}
        .cat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
        .cat-card-media{aspect-ratio:16/9;overflow:hidden;position:relative}
        .cat-card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
        .cat-card:hover .cat-card-media img{transform:scale(1.02)}
        .cat-card-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(28,38,31,.55))}
        .cat-card-media-label{position:absolute;bottom:12px;left:16px;z-index:2;color:var(--text-inverse);font-size:13px;font-weight:600;letter-spacing:.06em}
        .cat-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
        .cat-card-body h3{font-size:19px;font-weight:700;color:var(--primary);line-height:1.3}
        .cat-card-body p{font-size:14px;color:var(--text-secondary);line-height:1.7;flex:1}
        .cat-card-link{display:inline-flex;align-items:center;gap:5px;font-size:14px;font-weight:600;color:var(--accent-dark)}
        .cat-card-link:hover{color:var(--primary)}
        .cat-card-link .arrow{transition:transform var(--transition)}
        .cat-card-link:hover .arrow{transform:translateX(3px)}

        /* Latest news */
        .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
        .news-card{border-radius:var(--radius-card);overflow:hidden;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition);display:flex;flex-direction:column}
        .news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
        .news-card-media{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--bg-soft)}
        .news-card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
        .news-card:hover .news-card-media img{transform:scale(1.02)}
        .news-card-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(28,38,31,.45))}
        .news-card-cat{position:absolute;top:12px;left:12px;z-index:2;font-size:11px;font-weight:600;color:var(--accent-dark);background:#fff;padding:3px 10px;border-radius:var(--radius-badge);border:1px solid var(--accent);letter-spacing:.05em}
        .news-card-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
        .news-card-body h3{font-size:16px;font-weight:600;color:var(--text);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .news-card-body h3 a:hover{color:var(--primary)}
        .news-card-excerpt{font-size:13px;color:var(--text-secondary);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .news-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-secondary);border-top:1px solid var(--border);padding-top:12px;margin-top:auto}
        .news-empty{grid-column:1/-1;text-align:center;padding:50px;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-card);color:var(--text-secondary);font-size:15px}

        /* Scene cards */
        .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
        .scene-card{padding:24px;background:#fff;border-radius:var(--radius-card);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition);text-align:center}
        .scene-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
        .scene-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-pale);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:24px;color:var(--primary)}
        .scene-card h3{font-size:16px;font-weight:600;color:var(--primary);margin-bottom:8px}
        .scene-card p{font-size:13px;color:var(--text-secondary);line-height:1.65}

        /* Feature display */
        .feature-display{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
        .feature-display-visual{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:4/3}
        .feature-display-visual img{width:100%;height:100%;object-fit:cover}
        .feature-display-content h3{font-size:24px;font-weight:700;color:var(--primary);margin-bottom:14px}
        .feature-display-content ul{display:flex;flex-direction:column;gap:10px}
        .feature-display-content li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-secondary);line-height:1.7}
        .feature-display-content li::before{content:'';min-width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px}

        /* Timeline */
        .timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--gap);position:relative}
        .timeline::before{content:'';position:absolute;top:20px;left:10%;right:10%;height:2px;background:var(--border)}
        .timeline-step{text-align:center;position:relative;z-index:1}
        .timeline-dot{width:40px;height:40px;border-radius:50%;background:var(--primary);color:var(--text-inverse);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;margin:0 auto 12px;border:3px solid var(--bg-soft)}
        .timeline-step h4{font-size:16px;font-weight:600;color:var(--primary);margin-bottom:6px}
        .timeline-step p{font-size:13px;color:var(--text-secondary);line-height:1.6;padding:0 10px}

        /* Compare cards */
        .compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
        .compare-card{border-radius:var(--radius-card);overflow:hidden;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition);display:flex;flex-direction:column}
        .compare-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
        .compare-card--featured{border-color:var(--accent);box-shadow:0 8px 24px rgba(232,167,93,.16)}
        .compare-card-media{aspect-ratio:16/10;overflow:hidden}
        .compare-card-media img{width:100%;height:100%;object-fit:cover}
        .compare-card-body{padding:20px;flex:1;display:flex;flex-direction:column;gap:10px}
        .compare-card-body h3{font-size:18px;font-weight:700;color:var(--primary)}
        .compare-params{list-style:none;display:flex;flex-direction:column;gap:6px;margin:8px 0;flex:1}
        .compare-params li{font-size:13px;color:var(--text-secondary);display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--border)}
        .compare-params li span:first-child{color:var(--text-secondary)}
        .compare-params li span:last-child{font-weight:600;color:var(--text)}

        /* Case cards */
        .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
        .case-card{border-radius:var(--radius-card);overflow:hidden;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition)}
        .case-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
        .case-card-media{aspect-ratio:16/9;overflow:hidden}
        .case-card-media img{width:100%;height:100%;object-fit:cover}
        .case-card-body{padding:18px 20px}
        .case-card-body h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px}
        .case-card-data{display:flex;gap:16px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}
        .case-card-data span{font-size:13px;color:var(--text-secondary)}
        .case-card-data strong{display:block;font-size:18px;color:var(--primary);font-weight:700}

        /* FAQ */
        .faq-list{display:flex;flex-direction:column;gap:12px;max-width:800px;margin:0 auto}
        .faq-item{border:1px solid var(--border);border-radius:var(--radius-card);background:#fff;overflow:hidden;transition:border-color var(--transition)}
        .faq-item.open{border-color:var(--primary);border-left:4px solid var(--primary)}
        .faq-question{display:flex;align-items:center;justify-content:space-between;width:100%;padding:18px 22px;font-size:15px;font-weight:600;color:var(--text);text-align:left;cursor:pointer;gap:12px}
        .faq-question:hover{color:var(--primary)}
        .faq-icon{min-width:22px;height:22px;border-radius:50%;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-secondary);transition:transform var(--transition)}
        .faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--primary);color:var(--primary)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height 300ms ease,padding 300ms ease}
        .faq-item.open .faq-answer{max-height:300px;padding:0 22px 18px}
        .faq-answer p{font-size:14px;color:var(--text-secondary);line-height:1.7}

        /* Badge wall */
        .badge-wall{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}
        .badge-item{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 24px;background:#fff;border-radius:var(--radius-card);border:1px solid var(--border);min-width:120px;transition:box-shadow var(--transition),transform var(--transition)}
        .badge-item:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}
        .badge-icon{font-size:28px;color:var(--accent)}
        .badge-name{font-size:12px;font-weight:600;color:var(--text-secondary);text-align:center}

        /* Form & CTA */
        .form-section{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
        .form-steps{display:flex;flex-direction:column;gap:16px}
        .form-step{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:var(--radius-card);background:rgba(255,255,255,.5);border:1px solid var(--border)}
        .form-step-num{min-width:30px;height:30px;border-radius:50%;background:var(--primary);color:var(--text-inverse);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
        .form-step h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:4px}
        .form-step p{font-size:13px;color:var(--text-secondary);line-height:1.6}
        .contact-form{background:#fff;border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-md);border:1px solid var(--border)}
        .contact-form h3{font-size:20px;font-weight:700;color:var(--primary);margin-bottom:20px}
        .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .form-group{display:flex;flex-direction:column;gap:6px}
        .form-group--full{grid-column:1/-1}
        .form-group label{font-size:13px;font-weight:600;color:var(--text)}
        .form-group input,.form-group textarea,.form-group select{padding:11px 14px;border:1px solid var(--border);border-radius:var(--radius-btn);font-size:14px;color:var(--text);background:var(--bg);transition:border-color var(--transition),box-shadow var(--transition)}
        .form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(47,79,58,.08)}
        .form-group textarea{resize:vertical;min-height:100px}
        .form-hint{font-size:12px;color:var(--text-secondary);line-height:1.5}
        .form-submit{margin-top:16px;width:100%}

        /* Origin/environment */
        .origin-block{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
        .origin-visual{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:4/3}
        .origin-visual img{width:100%;height:100%;object-fit:cover}
        .origin-content h3{font-size:24px;font-weight:700;color:var(--text-inverse);margin-bottom:14px}
        .origin-content p{color:rgba(255,249,242,.76);font-size:14px;line-height:1.8;margin-bottom:12px}

        /* Bottom CTA */
        .bottom-cta{text-align:center;padding:60px 20px;border-radius:var(--radius-card);background:linear-gradient(135deg,var(--primary) 0%,var(--dark) 100%);color:var(--text-inverse);position:relative;overflow:hidden}
        .bottom-cta::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/3e48b67715704dde.webp');background-size:cover;background-position:center;opacity:.12}
        .bottom-cta .container{position:relative;z-index:1}
        .bottom-cta h2{font-size:30px;font-weight:700;margin-bottom:12px}
        .bottom-cta p{color:rgba(255,249,242,.75);font-size:16px;margin-bottom:24px;max-width:560px;margin-left:auto;margin-right:auto}
        .bottom-cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

        /* Trust strip */
        .trust-strip{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center;padding:28px 0}
        .trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary)}
        .trust-item-icon{width:18px;height:18px;border-radius:50%;background:var(--success);color:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;flex-shrink:0}

        /* Footer */
        .site-footer{background:var(--dark);color:rgba(255,249,242,.8);padding:50px 0 0}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
        .footer-brand .nav-logo-text strong{color:var(--text-inverse)}
        .footer-brand .nav-logo-text span{color:rgba(255,249,242,.6)}
        .footer-brand p{font-size:13px;color:rgba(255,249,242,.6);line-height:1.7;margin-top:14px;max-width:300px}
        .footer-col h4{font-size:15px;font-weight:600;color:var(--text-inverse);margin-bottom:16px}
        .footer-col a{display:block;font-size:13px;color:rgba(255,249,242,.65);padding:5px 0;transition:color var(--transition)}
        .footer-col a:hover{color:var(--accent)}
        .footer-contact p{font-size:13px;color:rgba(255,249,242,.65);padding:5px 0}
        .footer-bottom{border-top:1px solid rgba(255,249,242,.1);padding:18px 0;text-align:center;font-size:12px;color:rgba(255,249,242,.45)}

        /* Responsive */
        @media (max-width:1024px){
            .hero .container{grid-template-columns:1fr;gap:32px}
            .hero-visual{max-width:520px}
            .cat-grid{grid-template-columns:1fr 1fr}
            .cat-grid .cat-card:first-child{grid-column:1/-1}
            .news-grid{grid-template-columns:repeat(2,1fr)}
            .scene-grid{grid-template-columns:repeat(2,1fr)}
            .timeline{grid-template-columns:repeat(3,1fr);gap:20px}
            .timeline::before{display:none}
            .compare-grid{grid-template-columns:repeat(2,1fr)}
            .case-grid{grid-template-columns:repeat(2,1fr)}
            .footer-grid{grid-template-columns:1fr 1fr}
        }

        @media (max-width:768px){
            :root{--section-pad:56px}
            .nav-menu{display:none}
            .nav-toggle{display:flex}
            .section-title{font-size:24px}
            .hero h1{font-size:30px}
            .hero{padding:48px 0 56px}
            .hero p{font-size:15px}
            .hero-actions .btn{width:100%;justify-content:center}
            .stats-bar{grid-template-columns:1fr 1fr;gap:14px}
            .brand-intro{grid-template-columns:1fr}
            .cat-grid{grid-template-columns:1fr}
            .news-grid{grid-template-columns:1fr}
            .scene-grid{grid-template-columns:1fr}
            .feature-display{grid-template-columns:1fr}
            .timeline{grid-template-columns:1fr 1fr}
            .compare-grid{grid-template-columns:1fr}
            .case-grid{grid-template-columns:1fr}
            .form-section{grid-template-columns:1fr}
            .form-grid{grid-template-columns:1fr}
            .origin-block{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr}
            .bottom-cta h2{font-size:24px}
            .trust-strip{flex-direction:column;align-items:flex-start}
            .section-head--row{flex-direction:column;align-items:flex-start}
        }

        @media (max-width:480px){
            :root{--section-pad:40px}
            body{font-size:14px}
            .hero h1{font-size:26px}
            .section-title{font-size:21px}
            .stats-bar{grid-template-columns:1fr;gap:10px}
            .stat-number{font-size:30px}
            .timeline{grid-template-columns:1fr}
            .btn--lg{padding:13px 24px;font-size:14px}
            .container{padding:0 14px}
            .nav-container{height:60px;padding:0 14px}
            .nav-logo-text strong{font-size:15px}
            .cat-card-body h3{font-size:16px}
        }

/* roulang page: article */
:root {
            --primary: #2F4F3A;
            --primary-light: #3B5F49;
            --primary-pale: #E8EDE9;
            --accent: #E8A75D;
            --accent-dark: #D8943F;
            --accent-pale: rgba(232,167,93,.12);
            --bg: #F7F2EA;
            --bg-soft: #EFE7D8;
            --dark: #1C261F;
            --text: #2A312B;
            --text-secondary: #657068;
            --text-inverse: #FFF9F2;
            --border: #D8CDBB;
            --shadow-sm: 0 2px 10px rgba(47,79,58,.06);
            --shadow-md: 0 8px 24px rgba(47,79,58,.14);
            --shadow-lg: 0 16px 40px rgba(47,79,58,.18);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --success: #3E7B4F;
            --warning: #C07A3E;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-pad: 64px;
            --transition: 180ms ease;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);min-height:100vh}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        button,input,textarea,select{font-family:inherit;font-size:inherit}
        button{cursor:pointer;border:none;background:none}
        .container{max-width:var(--container);margin:0 auto;padding:0 20px}
        .section{padding:var(--section-pad) 0}
        .section--soft{background:var(--bg-soft)}
        .section--dark{background:var(--dark);color:var(--text-inverse)}
        .section-title{font-size:28px;font-weight:700;line-height:1.3;color:var(--text);margin-bottom:12px;letter-spacing:.01em}
        .section-subtitle{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:32px;max-width:680px}
        .section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:32px}
        .section-head--center{text-align:center;align-items:center}
        .section-head--center .section-subtitle{margin:0 auto 20px}
        .tag-label{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-dark);letter-spacing:.06em;padding:4px 12px;border:1px solid var(--accent);border-radius:var(--radius-badge);background:var(--accent-pale)}
        .tag-label--solid{background:var(--accent);color:var(--text-inverse);border-color:var(--accent)}

        /* Header & Nav */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,242,234,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow var(--transition)}
        .site-header.scrolled{box-shadow:var(--shadow-sm)}
        .nav-container{max-width:var(--container);margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
        .nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .nav-logo-icon{width:38px;height:38px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .nav-logo-icon svg{width:22px;height:22px}
        .nav-logo-text{display:flex;flex-direction:column;line-height:1.15}
        .nav-logo-text strong{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.02em}
        .nav-logo-text span{font-size:11px;color:var(--text-secondary);letter-spacing:.06em}
        .nav-menu{display:flex;align-items:center;gap:4px}
        .nav-menu a{padding:8px 14px;font-size:15px;font-weight:500;color:var(--text);border-radius:var(--radius-btn);transition:color var(--transition),background var(--transition);position:relative}
        .nav-menu a:hover{color:var(--accent-dark);background:var(--accent-pale)}
        .nav-menu a.active{color:var(--primary);font-weight:600}
        .nav-menu a.active::after{content:'';position:absolute;bottom:4px;left:14px;right:14px;height:2px;background:var(--accent);border-radius:2px}
        .nav-toggle{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff}
        .nav-toggle span{width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform var(--transition),opacity var(--transition)}
        .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
        .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
        .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

        /* Mobile Nav Overlay */
        .mobile-nav{display:none;position:fixed;inset:0;z-index:2000;background:var(--primary);flex-direction:column;padding:80px 24px 40px;gap:8px}
        .mobile-nav.open{display:flex}
        .mobile-nav a{color:var(--text-inverse);font-size:20px;font-weight:600;padding:12px 0;border-bottom:1px solid rgba(255,249,242,.12)}
        .mobile-nav a.active{color:var(--accent)}
        .mobile-nav-close{position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,249,242,.3);color:var(--text-inverse);font-size:22px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05)}

        /* Article Hero - TDK区 */
        .article-hero{position:relative;padding:64px 0 40px;background:var(--bg);border-bottom:1px solid var(--border)}
        .article-hero::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/de41484969e17f77.webp');background-size:cover;background-position:center;opacity:.08;pointer-events:none}
        .article-hero .container{position:relative;z-index:1}
        .breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary);margin-bottom:18px;flex-wrap:wrap}
        .breadcrumb-nav a{color:var(--primary);font-weight:500;transition:color var(--transition)}
        .breadcrumb-nav a:hover{color:var(--accent-dark)}
        .breadcrumb-nav .separator{color:var(--border);user-select:none}
        .article-hero-content{max-width:780px}
        .article-category-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-dark);background:var(--accent-pale);border:1px solid var(--accent);padding:4px 14px;border-radius:var(--radius-badge);margin-bottom:14px}
        .article-hero h1{font-size:34px;font-weight:700;line-height:1.32;color:var(--primary);margin-bottom:14px;letter-spacing:.01em}
        .article-hero-summary{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:18px;max-width:720px}
        .article-meta{display:flex;flex-wrap:wrap;gap:16px 24px;font-size:13px;color:var(--text-secondary);margin-bottom:20px}
        .article-meta-item{display:flex;align-items:center;gap:6px}
        .article-meta-item svg{width:15px;height:15px;fill:var(--accent)}
        .article-source{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary)}
        .article-source strong{color:var(--primary);font-weight:600}

        /* Article Body */
        .article-body{max-width:780px;margin:0 auto;padding:48px 20px}
        .article-body .prose{font-size:16px;line-height:1.85;color:var(--text)}
        .article-body .prose h2{font-size:24px;font-weight:700;color:var(--primary);margin:36px 0 16px;line-height:1.3}
        .article-body .prose h3{font-size:20px;font-weight:600;color:var(--primary);margin:28px 0 12px;line-height:1.35}
        .article-body .prose p{margin-bottom:18px}
        .article-body .prose ul,.article-body .prose ol{margin:0 0 20px 24px;padding:0}
        .article-body .prose li{margin-bottom:8px}
        .article-body .prose blockquote{border-left:4px solid var(--accent);background:var(--accent-pale);padding:16px 20px;margin:24px 0;border-radius:0 var(--radius-card) var(--radius-card) 0}
        .article-body .prose blockquote p{margin-bottom:0;color:var(--primary)}
        .article-body .prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
        .article-body .prose table th,.article-body .prose table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
        .article-body .prose table th{background:var(--primary-pale);color:var(--primary);font-weight:600}
        .article-body .prose img{border-radius:var(--radius-card);margin:24px 0;box-shadow:var(--shadow-sm)}
        .article-body .prose a{color:var(--primary);font-weight:500;border-bottom:1px solid var(--accent)}
        .article-body .prose a:hover{color:var(--accent-dark)}

        /* Article Footer Tags & Share */
        .article-tags-share{max-width:780px;margin:0 auto 0;padding:0 20px 20px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--border)}
        .article-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
        .article-tags-label{font-size:13px;font-weight:600;color:var(--text-secondary);margin-right:4px}
        .article-tag{font-size:12px;color:var(--primary);background:var(--primary-pale);border:1px solid rgba(47,79,58,.2);padding:4px 12px;border-radius:var(--radius-badge);transition:background var(--transition),color var(--transition)}
        .article-tag:hover{background:var(--primary);color:var(--text-inverse)}
        .article-share{display:flex;align-items:center;gap:10px}
        .article-share-label{font-size:13px;font-weight:600;color:var(--text-secondary)}
        .article-share-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--primary);transition:background var(--transition),color var(--transition),border-color var(--transition)}
        .article-share-btn:hover{background:var(--primary);color:var(--text-inverse);border-color:var(--primary)}

        /* Prev / Next */
        .article-nav{max-width:780px;margin:0 auto;padding:36px 20px 48px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .article-nav-card{display:flex;flex-direction:column;gap:8px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);transition:box-shadow var(--transition),border-color var(--transition)}
        .article-nav-card:hover{box-shadow:var(--shadow-md);border-color:var(--accent)}
        .article-nav-label{font-size:12px;font-weight:600;color:var(--text-secondary);letter-spacing:.06em}
        .article-nav-link{font-size:15px;font-weight:600;color:var(--primary);line-height:1.4}
        .article-nav-card:hover .article-nav-link{color:var(--accent-dark)}
        .article-nav-placeholder{opacity:.55;cursor:default}

        /* Related Articles */
        .related-section{background:var(--bg-soft);padding:64px 0}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .related-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition)}
        .related-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--accent)}
        .related-card-image{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
        .related-card-image img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
        .related-card:hover .related-card-image img{transform:scale(1.02)}
        .related-card-content{padding:18px}
        .related-card-tag{font-size:11px;font-weight:600;color:var(--accent-dark);background:var(--accent-pale);border:1px solid var(--accent);padding:2px 10px;border-radius:var(--radius-badge);display:inline-block;margin-bottom:10px}
        .related-card-title{font-size:16px;font-weight:600;color:var(--text);line-height:1.45;margin-bottom:8px}
        .related-card-summary{font-size:13px;color:var(--text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
        .related-card-date{font-size:12px;color:var(--text-secondary)}
        .related-card-link{display:block;color:var(--primary);font-weight:500;font-size:14px;margin-top:6px}
        .related-card-link:hover{color:var(--accent-dark)}

        /* Article FAQ */
        .article-faq{max-width:780px;margin:0 auto;padding:64px 20px}
        .faq-list{display:flex;flex-direction:column;gap:14px}
        .faq-item{border:1px solid var(--border);border-radius:var(--radius-card);background:#fff;overflow:hidden}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:background var(--transition)}
        .faq-question:hover{background:var(--bg)}
        .faq-question .faq-icon{font-size:20px;color:var(--accent);flex-shrink:0;transition:transform var(--transition)}
        .faq-item.open .faq-question .faq-icon{transform:rotate(45deg)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition),padding var(--transition);padding:0 22px}
        .faq-item.open .faq-answer{max-height:300px;padding:0 22px 20px}
        .faq-answer p{font-size:15px;color:var(--text-secondary);line-height:1.7;margin:0}

        /* Back CTA */
        .article-back{padding:0 0 64px;text-align:center}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:background var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition);border:2px solid transparent}
        .btn-primary{background:var(--primary);color:var(--text-inverse);border-color:var(--primary)}
        .btn-primary:hover{background:var(--primary-light);border-color:var(--primary-light);box-shadow:var(--shadow-md)}
        .btn-secondary{background:transparent;color:var(--primary);border-color:var(--primary)}
        .btn-secondary:hover{background:var(--primary-pale);border-color:var(--primary-light)}
        .btn-accent{background:var(--accent);color:var(--text-inverse);border-color:var(--accent)}
        .btn-accent:hover{background:var(--accent-dark);border-color:var(--accent-dark);box-shadow:var(--shadow-md)}

        /* Footer */
        .site-footer{background:var(--dark);color:var(--text-inverse);padding:64px 0 0}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,249,242,.1)}
        .footer-brand .nav-logo-text strong{color:var(--text-inverse)}
        .footer-brand .nav-logo-text span{color:rgba(255,249,242,.6)}
        .footer-brand p{font-size:14px;color:rgba(255,249,242,.72);line-height:1.7;margin-top:14px;max-width:280px}
        .footer-col h4{font-size:16px;font-weight:600;color:var(--text-inverse);margin-bottom:16px}
        .footer-col a{display:block;font-size:14px;color:rgba(255,249,242,.72);margin-bottom:10px;transition:color var(--transition)}
        .footer-col a:hover{color:var(--accent)}
        .footer-contact p{font-size:14px;color:rgba(255,249,242,.72);margin-bottom:10px}
        .footer-bottom{padding:20px 0;text-align:center;font-size:13px;color:rgba(255,249,242,.5)}

        /* Responsive */
        @media (max-width:1024px){
            :root{--section-pad:48px}
            .related-grid{grid-template-columns:repeat(2,1fr)}
            .article-hero h1{font-size:30px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
        }
        @media (max-width:768px){
            :root{--section-pad:36px}
            .nav-menu{display:none}
            .nav-toggle{display:flex}
            .article-hero{padding:40px 0 32px}
            .article-hero h1{font-size:26px;line-height:1.35}
            .article-hero-summary{font-size:15px}
            .article-meta{flex-direction:column;gap:10px}
            .article-body{padding:32px 16px}
            .article-body .prose h2{font-size:21px}
            .article-body .prose h3{font-size:18px}
            .article-tags-share{flex-direction:column;align-items:flex-start}
            .article-nav{grid-template-columns:1fr;padding:24px 16px 36px}
            .related-grid{grid-template-columns:1fr}
            .article-faq{padding:48px 16px}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .article-back{padding:0 16px 48px}
        }
        @media (max-width:480px){
            .section-title{font-size:22px}
            .article-hero h1{font-size:22px}
            .article-meta{font-size:12px}
            .btn{width:100%;justify-content:center}
            .article-nav-card{padding:16px}
        }

/* roulang page: category1 */
:root {
            --primary: #2F4F3A;
            --primary-light: #3B5F49;
            --primary-pale: #E8EDE9;
            --accent: #E8A75D;
            --accent-dark: #D8943F;
            --bg: #F7F2EA;
            --bg-soft: #EFE7D8;
            --dark: #1C261F;
            --text: #2A312B;
            --text-secondary: #657068;
            --text-inverse: #FFF9F2;
            --border: #D8CDBB;
            --shadow-sm: 0 2px 10px rgba(47,79,58,.06);
            --shadow-md: 0 8px 24px rgba(47,79,58,.14);
            --shadow-lg: 0 16px 40px rgba(47,79,58,.18);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --success: #3E7B4F;
            --warning: #C07A3E;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-pad: 72px;
            --transition: 180ms ease;
        }
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);min-height:100vh;margin:0;padding:0}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        button,input,textarea,select{font-family:inherit;font-size:inherit}
        button{cursor:pointer;border:none;background:none}
        .container{max-width:var(--container);margin:0 auto;padding:0 20px}
        .section{padding:var(--section-pad) 0}
        .section--soft{background:var(--bg-soft)}
        .section--dark{background:var(--dark);color:var(--text-inverse)}
        .section--dark .section-title{color:var(--text-inverse)}
        .section--dark .section-subtitle{color:rgba(255,249,242,.72)}
        .section-title{font-size:30px;font-weight:700;line-height:1.3;color:var(--text);margin-bottom:12px;letter-spacing:.01em}
        .section-subtitle{font-size:16px;color:var(--text-secondary);line-height:1.7;margin-bottom:36px;max-width:680px}
        .section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:36px}
        .section-head--center{text-align:center;align-items:center}
        .section-head--center .section-subtitle{margin:0 auto 24px}
        .section-head--row{flex-direction:row;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px}
        .tag-label{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--accent-dark);letter-spacing:.08em;text-transform:uppercase;padding:4px 12px;border:1px solid var(--accent);border-radius:var(--radius-badge);background:rgba(232,167,93,.08)}
        .tag-label--solid{background:var(--accent);color:var(--text-inverse);border-color:var(--accent)}

        /* Header & Nav */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,242,234,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow var(--transition)}
        .site-header.scrolled{box-shadow:var(--shadow-sm)}
        .nav-container{max-width:var(--container);margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
        .nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .nav-logo-icon{width:38px;height:38px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .nav-logo-icon svg{width:22px;height:22px}
        .nav-logo-text{display:flex;flex-direction:column;line-height:1.15}
        .nav-logo-text strong{font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.02em}
        .nav-logo-text span{font-size:11px;color:var(--text-secondary);letter-spacing:.06em}
        .nav-menu{display:flex;align-items:center;gap:4px}
        .nav-menu a{padding:8px 14px;font-size:15px;font-weight:500;color:var(--text);border-radius:var(--radius-btn);transition:color var(--transition),background var(--transition);position:relative}
        .nav-menu a:hover{color:var(--accent-dark);background:rgba(232,167,93,.08)}
        .nav-menu a.active{color:var(--primary);font-weight:600}
        .nav-menu a.active::after{content:'';position:absolute;bottom:4px;left:14px;right:14px;height:2px;background:var(--accent);border-radius:2px}
        .nav-toggle{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff}
        .nav-toggle span{width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform var(--transition),opacity var(--transition)}

        /* Mobile Nav Overlay */
        .mobile-nav{display:none;position:fixed;inset:0;z-index:2000;background:var(--primary);flex-direction:column;padding:80px 24px 40px;gap:8px}
        .mobile-nav.open{display:flex}
        .mobile-nav a{color:var(--text-inverse);font-size:20px;font-weight:600;padding:12px 0;border-bottom:1px solid rgba(255,249,242,.12)}
        .mobile-nav a.active{color:var(--accent)}
        .mobile-nav-close{position:absolute;top:20px;right:20px;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,249,242,.3);color:var(--text-inverse);font-size:22px;display:flex;align-items:center;justify-content:center}

        /* Page Header */
        .page-header{background:var(--bg-soft);border-bottom:1px solid var(--border);padding:40px 0 32px}
        .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary);margin-bottom:12px}
        .breadcrumb a{color:var(--text-secondary);transition:color var(--transition)}
        .breadcrumb a:hover{color:var(--primary)}
        .breadcrumb-sep{color:var(--border)}
        .page-header h1{font-size:36px;font-weight:700;color:var(--primary);line-height:1.25;margin-bottom:8px}
        .page-header-desc{font-size:16px;color:var(--text-secondary);max-width:720px;line-height:1.7}

        /* Intro Section */
        .intro-grid{display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center}
        .intro-text h2{font-size:26px;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:16px}
        .intro-text p{color:var(--text-secondary);margin-bottom:14px;line-height:1.75}
        .intro-text ul{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-direction:column;gap:8px}
        .intro-text ul li{padding-left:24px;position:relative;color:var(--text);font-size:15px}
        .intro-text ul li::before{content:'';position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
        .intro-image{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md)}
        .intro-image img{width:100%;height:320px;object-fit:cover}

        /* Filter Badges */
        .filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
        .filter-badge{padding:8px 20px;border-radius:var(--radius-badge);border:1px solid var(--border);background:#fff;color:var(--text);font-size:14px;font-weight:500;transition:all var(--transition)}
        .filter-badge:hover{border-color:var(--accent);color:var(--accent-dark);background:rgba(232,167,93,.06)}
        .filter-badge.active{background:var(--primary);color:var(--text-inverse);border-color:var(--primary)}

        /* Strain Cards */
        .strain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .strain-card{background:#fff;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition)}
        .strain-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .strain-card-img{height:200px;overflow:hidden}
        .strain-card-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
        .strain-card:hover .strain-card-img img{transform:scale(1.02)}
        .strain-card-body{padding:18px 20px 20px}
        .strain-card-body h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px}
        .strain-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
        .strain-tag{font-size:11px;font-weight:500;color:var(--accent-dark);border:1px solid var(--accent);border-radius:var(--radius-badge);padding:2px 10px}
        .strain-card-body p{font-size:14px;color:var(--text-secondary);line-height:1.65;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .strain-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:gap var(--transition)}
        .strain-link:hover{gap:10px;color:var(--primary-light)}

        /* Compare Table */
        .table-wrapper{overflow-x:auto;border-radius:var(--radius-card);box-shadow:var(--shadow-sm);background:#fff}
        .compare-table{width:100%;border-collapse:collapse;min-width:720px}
        .compare-table th{background:var(--primary);color:var(--text-inverse);font-weight:600;padding:14px 16px;text-align:left;font-size:14px}
        .compare-table td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:14px;color:var(--text)}
        .compare-table tr:last-child td{border-bottom:none}
        .compare-table tr:hover td{background:rgba(47,79,58,.03)}
        .compare-table th:first-child{border-radius:8px 0 0 0}
        .compare-table th:last-child{border-radius:0 8px 0 0}

        /* Steps */
        .steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
        .step-item{background:#fff;border-radius:var(--radius-card);padding:24px 20px;text-align:center;box-shadow:var(--shadow-sm);position:relative;transition:box-shadow var(--transition)}
        .step-item:hover{box-shadow:var(--shadow-md)}
        .step-num{width:44px;height:44px;border-radius:50%;background:var(--primary);color:var(--text-inverse);font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
        .step-item h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px}
        .step-item p{font-size:13px;color:var(--text-secondary);line-height:1.6;margin:0}

        /* FAQ */
        .faq-list{display:flex;flex-direction:column;gap:12px;max-width:780px;margin:0 auto}
        .faq-item{background:#fff;border-radius:var(--radius-card);border:1px solid var(--border);overflow:hidden;transition:border-color var(--transition)}
        .faq-item.open{border-color:var(--primary)}
        .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);text-align:left;background:none;border:none;cursor:pointer}
        .faq-question:hover{color:var(--primary)}
        .faq-icon{width:24px;height:24px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--primary);flex-shrink:0;transition:transform var(--transition)}
        .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:var(--text-inverse)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition),padding var(--transition);padding:0 20px}
        .faq-item.open .faq-answer{max-height:200px;padding:0 20px 18px}
        .faq-answer p{margin:0;font-size:14px;color:var(--text-secondary);line-height:1.7}

        /* CTA Section */
        .cta-box{background:var(--primary);border-radius:var(--radius-card);padding:48px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;box-shadow:var(--shadow-lg)}
        .cta-box h2{font-size:26px;font-weight:700;color:var(--text-inverse);margin-bottom:8px}
        .cta-box p{color:rgba(255,249,242,.78);font-size:15px;margin:0}
        .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--radius-btn);font-weight:600;font-size:15px;transition:all var(--transition)}
        .btn-primary{background:var(--accent);color:var(--text-inverse)}
        .btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
        .btn-outline{background:transparent;color:var(--text-inverse);border:2px solid rgba(255,249,242,.4)}
        .btn-outline:hover{border-color:var(--accent);color:var(--accent)}

        /* Footer */
        .site-footer{background:var(--dark);color:var(--text-inverse);padding:60px 0 0}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
        .footer-brand p{font-size:14px;color:rgba(255,249,242,.68);margin-top:14px;line-height:1.7;max-width:280px}
        .footer-brand .nav-logo-text strong{color:var(--text-inverse)}
        .footer-brand .nav-logo-text span{color:rgba(255,249,242,.55)}
        .footer-brand .nav-logo-icon{background:rgba(232,167,93,.2)}
        .footer-col h4{font-size:16px;font-weight:600;color:var(--accent);margin-bottom:16px}
        .footer-col a{display:block;font-size:14px;color:rgba(255,249,242,.68);padding:5px 0;transition:color var(--transition)}
        .footer-col a:hover{color:var(--accent)}
        .footer-col p{font-size:14px;color:rgba(255,249,242,.68);padding:5px 0;margin:0}
        .footer-bottom{border-top:1px solid rgba(255,249,242,.12);padding:20px 0;text-align:center}
        .footer-bottom p{font-size:13px;color:rgba(255,249,242,.5);margin:0}

        @media (max-width:1024px){
            .strain-grid{grid-template-columns:repeat(2,1fr)}
            .steps-grid{grid-template-columns:repeat(2,1fr)}
            .intro-grid{grid-template-columns:1fr;gap:32px}
            .intro-image img{height:260px}
            .footer-grid{grid-template-columns:repeat(2,1fr)}
        }
        @media (max-width:768px){
            :root{--section-pad:48px}
            .nav-menu{display:none}
            .nav-toggle{display:flex}
            .strain-grid{grid-template-columns:1fr}
            .steps-grid{grid-template-columns:1fr}
            .page-header h1{font-size:28px}
            .section-title{font-size:24px}
            .cta-box{padding:32px 24px;flex-direction:column;text-align:center}
            .cta-box .btn{width:100%;justify-content:center}
            .footer-grid{grid-template-columns:1fr;gap:24px}
            .compare-table{min-width:600px}
        }
        @media (max-width:520px){
            :root{--section-pad:36px}
            .page-header h1{font-size:24px}
            .intro-text h2{font-size:22px}
            .strain-card-img{height:170px}
            .btn{padding:12px 18px;font-size:14px}
        }

/* roulang page: category3 */
:root {
            --primary: #2F4F3A;
            --primary-light: #3B5F49;
            --primary-pale: #E8EDE9;
            --accent: #E8A75D;
            --accent-dark: #D8943F;
            --bg: #F7F2EA;
            --bg-soft: #EFE7D8;
            --dark: #1C261F;
            --text: #2A312B;
            --text-secondary: #657068;
            --text-inverse: #FFF9F2;
            --border: #D8CDBB;
            --shadow-sm: 0 2px 10px rgba(47,79,58,.06);
            --shadow-md: 0 8px 24px rgba(47,79,58,.14);
            --shadow-lg: 0 16px 40px rgba(47,79,58,.18);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --success: #3E7B4F;
            --warning: #C07A3E;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-pad: 80px;
            --transition: 180ms ease;
        }
        
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }
        }
        
        @media (max-width: 768px) {
            :root {
                --section-pad: 40px;
            }
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .section {
            padding: var(--section-pad) 0;
        }
        
        .section--soft {
            background: var(--bg-soft);
        }
        
        .section--dark {
            background: var(--dark);
            color: var(--text-inverse);
        }
        
        .section--dark .section-title {
            color: var(--text-inverse);
        }
        
        .section--dark .section-subtitle {
            color: rgba(255,249,242,.72);
        }
        
        .section--dark .text-secondary {
            color: rgba(255,249,242,.72);
        }
        
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: .01em;
        }
        
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 680px;
        }
        
        .section-head {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 36px;
        }
        
        .section-head--center {
            text-align: center;
            align-items: center;
        }
        
        .section-head--center .section-subtitle {
            margin: 0 auto 24px;
        }
        
        .section-head--row {
            flex-direction: row;
            justify-content: space-between;
            align-items: flex-end;
            flex-wrap: wrap;
            gap: 16px;
        }
        
        .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-dark);
            letter-spacing: .08em;
            text-transform: uppercase;
            padding: 4px 12px;
            border: 1px solid var(--accent);
            border-radius: var(--radius-badge);
            background: rgba(232,167,93,.08);
        }
        
        .tag-label--solid {
            background: var(--accent);
            color: var(--text-inverse);
            border-color: var(--accent);
        }
        
        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(247,242,234,.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        
        .nav-container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 16px;
        }
        
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        
        .nav-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .nav-logo-icon svg {
            width: 22px;
            height: 22px;
        }
        
        .nav-logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }
        
        .nav-logo-text strong {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .02em;
        }
        
        .nav-logo-text span {
            font-size: 11px;
            color: var(--text-secondary);
            letter-spacing: .06em;
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        
        .nav-menu a {
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-btn);
            transition: color var(--transition), background var(--transition);
            position: relative;
            white-space: nowrap;
        }
        
        .nav-menu a:hover {
            color: var(--accent-dark);
            background: rgba(232,167,93,.08);
        }
        
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: #fff;
        }
        
        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        
        /* Mobile Nav Overlay */
        .mobile-nav {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 2000;
            background: var(--primary);
            flex-direction: column;
            padding: 80px 24px 40px;
            gap: 8px;
            overflow-y: auto;
        }
        
        .mobile-nav.open {
            display: flex;
        }
        
        .mobile-nav a {
            color: var(--text-inverse);
            font-size: 20px;
            font-weight: 600;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,249,242,.12);
        }
        
        .mobile-nav a.active {
            color: var(--accent);
        }
        
        .mobile-nav-close {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255,249,242,.3);
            color: var(--text-inverse);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        /* 面包屑 */
        .breadcrumb-bar {
            padding: 18px 0;
            background: var(--bg-soft);
            border-bottom: 1px solid var(--border);
        }
        
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        
        .breadcrumb-bar a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        
        .breadcrumb-bar a:hover {
            color: var(--accent-dark);
        }
        
        .breadcrumb-bar .sep {
            color: var(--border);
        }
        
        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 600;
        }
        
        /* 页头区 */
        .page-header-section {
            padding: 50px 0 40px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
        
        .page-header-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/47be02e902632259.webp');
            background-size: cover;
            background-position: center;
            opacity: .08;
            pointer-events: none;
        }
        
        .page-header-section .container {
            position: relative;
            z-index: 1;
        }
        
        .page-header-section h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 12px;
        }
        
        .page-header-section .page-header-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }
        
        /* 按钮 */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--primary);
            color: var(--text-inverse);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid var(--primary);
        }
        
        .btn-primary-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: var(--text-inverse);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        
        .btn-accent-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--accent);
            color: var(--text-inverse);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: 2px solid var(--accent);
        }
        
        .btn-accent-custom:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: var(--text-inverse);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: var(--primary);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            border: 2px solid var(--primary);
        }
        
        .btn-outline-custom:hover {
            background: var(--primary-pale);
            border-color: var(--primary);
            color: var(--primary);
        }
        
        /* 卡片 */
        .card-custom {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(216,205,187,.4);
        }
        
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        /* 合作模式卡片 */
        .cooperation-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: var(--gap);
            align-items: stretch;
        }
        
        .cooperation-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(216,205,187,.4);
            display: flex;
            flex-direction: column;
        }
        
        .cooperation-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .cooperation-card--featured {
            grid-row: span 1;
        }
        
        .cooperation-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        
        .cooperation-card--featured .cooperation-card-img {
            height: 220px;
        }
        
        .cooperation-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 300ms ease;
        }
        
        .cooperation-card:hover .cooperation-card-img img {
            transform: scale(1.03);
        }
        
        .cooperation-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        
        .cooperation-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 0;
            line-height: 1.3;
        }
        
        .cooperation-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
            flex: 1;
        }
        
        .cooperation-card-body .card-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 4px;
        }
        
        .mini-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--accent-dark);
            border: 1px solid var(--accent);
            border-radius: var(--radius-badge);
            padding: 3px 10px;
            background: rgba(232,167,93,.08);
        }
        
        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
            counter-reset: step;
        }
        
        .step-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(216,205,187,.4);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-inverse);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 14px;
        }
        
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        
        /* 资质保障 */
        .qualification-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        
        .qual-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(216,205,187,.4);
            text-align: center;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        
        .qual-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        
        .qual-icon {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 10px;
        }
        
        .qual-item h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 6px;
        }
        
        .qual-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        
        /* 表单 */
        .form-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(216,205,187,.4);
        }
        
        .form-card .form-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 6px;
        }
        
        .form-card .form-control {
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        
        .form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47,79,58,.12);
            outline: none;
        }
        
        .form-card textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }
        
        .form-feedback {
            font-size: 13px;
            color: var(--warning);
            display: none;
        }
        
        /* 物流交付 */
        .logistics-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        
        .logistics-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        
        .logistics-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .logistics-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        
        .logistics-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }
        
        .logistics-list li i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        
        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            background: #fff;
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        
        .faq-item:hover {
            border-color: rgba(47,79,58,.3);
        }
        
        .faq-item.active {
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }
        
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            width: 100%;
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            background: transparent;
            transition: color var(--transition);
        }
        
        .faq-question:hover {
            color: var(--primary);
        }
        
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 18px;
            color: var(--text-secondary);
            transition: transform var(--transition), color var(--transition);
        }
        
        .faq-item.active .faq-question .faq-icon {
            color: var(--primary);
            transform: rotate(180deg);
        }
        
        .faq-answer {
            display: none;
            padding: 0 20px 16px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        
        .faq-item.active .faq-answer {
            display: block;
            background: rgba(232,237,233,.4);
        }
        
        /* 联系卡 */
        .contact-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }
        
        .contact-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(216,205,187,.4);
            text-align: center;
        }
        
        .contact-card i {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        
        .contact-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }
        
        .contact-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        
        /* Footer */
        .site-footer {
            background: var(--dark);
            color: var(--text-inverse);
            padding: 50px 0 20px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        
        .footer-brand p {
            font-size: 14px;
            color: rgba(255,249,242,.65);
            line-height: 1.7;
            margin: 14px 0 0;
            max-width: 280px;
        }
        
        .footer-brand .nav-logo-text strong {
            color: var(--text-inverse);
        }
        
        .footer-brand .nav-logo-text span {
            color: rgba(255,249,242,.6);
        }
        
        .footer-brand .nav-logo-icon {
            background: rgba(232,167,93,.2);
        }
        
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-inverse);
            margin: 0 0 14px;
        }
        
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255,249,242,.7);
            padding: 5px 0;
            transition: color var(--transition);
        }
        
        .footer-col a:hover {
            color: var(--accent);
        }
        
        .footer-col p {
            font-size: 14px;
            color: rgba(255,249,242,.7);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,249,242,.12);
            padding-top: 16px;
            text-align: center;
        }
        
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255,249,242,.55);
            margin: 0;
        }
        
        /* 响应式 */
        @media (max-width: 1024px) {
            .hero {
                padding: 60px 0;
            }
            
            .hero .container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .hero h1 {
                font-size: 34px;
            }
            
            .cooperation-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .cooperation-card--featured {
                grid-column: span 2;
            }
            
            .cooperation-card--featured .cooperation-card-img {
                height: 240px;
            }
            
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .qualification-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .contact-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        
        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            
            .nav-menu {
                display: none;
            }
            
            .nav-toggle {
                display: flex;
            }
            
            .section-title {
                font-size: 24px;
            }
            
            .page-header-section h1 {
                font-size: 28px;
            }
            
            .page-header-section .page-header-desc {
                font-size: 15px;
            }
            
            .cooperation-grid {
                grid-template-columns: 1fr;
            }
            
            .cooperation-card--featured {
                grid-column: span 1;
            }
            
            .cooperation-card--featured .cooperation-card-img {
                height: 200px;
            }
            
            .cooperation-card-img {
                height: 180px;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
            }
            
            .qualification-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-cards-grid {
                grid-template-columns: 1fr;
            }
            
            .logistics-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .form-card {
                padding: 20px;
            }
            
            .btn-primary-custom, .btn-accent-custom, .btn-outline-custom {
                padding: 10px 18px;
                font-size: 14px;
            }
        }
        
        @media (max-width: 480px) {
            body {
                font-size: 14px;
            }
            
            .container {
                padding: 0 14px;
            }
            
            .nav-container {
                padding: 0 14px;
                height: 60px;
            }
            
            .nav-logo-text strong {
                font-size: 15px;
            }
            
            .page-header-section h1 {
                font-size: 24px;
            }
            
            .section-title {
                font-size: 21px;
            }
            
            .btn-primary-custom, .btn-accent-custom, .btn-outline-custom {
                width: 100%;
                justify-content: center;
                padding: 10px 16px;
                font-size: 14px;
            }
            
            .cooperation-card-img {
                height: 160px;
            }
            
            .cooperation-card--featured .cooperation-card-img {
                height: 180px;
            }
            
            .form-card {
                padding: 16px;
            }
            
            .form-card .form-control {
                font-size: 13px;
                padding: 8px 12px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2F4F3A;
            --primary-light: #3B5F49;
            --primary-pale: #E8EDE9;
            --accent: #E8A75D;
            --accent-dark: #D8943F;
            --bg: #F7F2EA;
            --bg-soft: #EFE7D8;
            --dark: #1C261F;
            --text: #2A312B;
            --text-secondary: #657068;
            --text-inverse: #FFF9F2;
            --border: #D8CDBB;
            --shadow-sm: 0 2px 10px rgba(47,79,58,.06);
            --shadow-md: 0 8px 24px rgba(47,79,58,.14);
            --shadow-lg: 0 16px 40px rgba(47,79,58,.18);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 999px;
            --success: #3E7B4F;
            --warning: #C07A3E;
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            --container: 1200px;
            --gap: 24px;
            --section-pad: 72px;
            --transition: 180ms ease;
        }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body { font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); min-height: 100vh; }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
        .section { padding: var(--section-pad) 0; }
        .section--soft { background: var(--bg-soft); }
        .section--dark { background: var(--dark); color: var(--text-inverse); }
        .section--dark .section-title { color: var(--text-inverse); }
        .section--dark .section-subtitle { color: rgba(255,249,242,.72); }
        .section-title { font-size: 30px; font-weight: 700; line-height: 1.3; color: var(--text); margin-bottom: 12px; letter-spacing: .01em; }
        .section-subtitle { font-size: 16px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 36px; max-width: 680px; }
        .section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 36px; }
        .section-head--center { text-align: center; align-items: center; }
        .section-head--center .section-subtitle { margin: 0 auto 24px; }
        .section-head--row { flex-direction: row; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 16px; }
        .tag-label { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--accent-dark); letter-spacing: .08em; text-transform: uppercase; padding: 4px 12px; border: 1px solid var(--accent); border-radius: var(--radius-badge); background: rgba(232,167,93,.08); }
        .tag-label--solid { background: var(--accent); color: var(--text-inverse); border-color: var(--accent); }

        /* Header */
        .site-header { position: sticky; top: 0; z-index: 1000; background: rgba(247,242,234,.97); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); transition: box-shadow var(--transition); }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .nav-container { max-width: var(--container); margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
        .nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .nav-logo-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
        .nav-logo-icon svg { width: 22px; height: 22px; }
        .nav-logo-text { display: flex; flex-direction: column; line-height: 1.15; }
        .nav-logo-text strong { font-size: 17px; font-weight: 700; color: var(--primary); letter-spacing: .02em; }
        .nav-logo-text span { font-size: 11px; color: var(--text-secondary); letter-spacing: .06em; }
        .nav-menu { display: flex; align-items: center; gap: 4px; }
        .nav-menu a { padding: 8px 14px; font-size: 15px; font-weight: 500; color: var(--text); border-radius: var(--radius-btn); transition: color var(--transition), background var(--transition); position: relative; }
        .nav-menu a:hover { color: var(--accent-dark); background: rgba(232,167,93,.08); }
        .nav-menu a.active { color: var(--primary); font-weight: 600; }
        .nav-menu a.active::after { content: ''; position: absolute; bottom: 4px; left: 14px; right: 14px; height: 2px; background: var(--accent); border-radius: 2px; }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: var(--radius-btn); border: 1px solid var(--border); background: #fff; }
        .nav-toggle span { width: 18px; height: 2px; background: var(--primary); border-radius: 2px; transition: transform var(--transition), opacity var(--transition); }

        /* Mobile Nav */
        .mobile-nav { display: none; position: fixed; inset: 0; z-index: 2000; background: var(--primary); flex-direction: column; padding: 80px 24px 40px; gap: 8px; }
        .mobile-nav.open { display: flex; }
        .mobile-nav a { color: var(--text-inverse); font-size: 20px; font-weight: 600; padding: 12px 0; border-bottom: 1px solid rgba(255,249,242,.12); }
        .mobile-nav a.active { color: var(--accent); }
        .mobile-nav-close { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,249,242,.3); color: var(--text-inverse); font-size: 22px; display: flex; align-items: center; justify-content: center; }

        /* Breadcrumb / Page Header */
        .page-header { padding: 48px 0 28px; background: var(--bg); border-bottom: 1px solid var(--border); }
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-secondary); margin-bottom: 14px; flex-wrap: wrap; }
        .breadcrumb a { color: var(--primary); font-weight: 500; }
        .breadcrumb a:hover { color: var(--accent-dark); }
        .breadcrumb-sep { color: var(--border); }
        .page-header h1 { font-size: 38px; font-weight: 700; color: var(--text); line-height: 1.25; margin-bottom: 10px; }
        .page-header .page-desc { font-size: 17px; color: var(--text-secondary); max-width: 720px; line-height: 1.7; }

        /* Overview */
        .overview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .overview-content h2 { font-size: 26px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
        .overview-content p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
        .overview-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
        .overview-points span { display: inline-flex; align-items: center; font-size: 13px; font-weight: 500; color: var(--primary); background: var(--primary-pale); padding: 6px 14px; border-radius: var(--radius-badge); border: 1px solid rgba(47,79,58,.15); }
        .overview-image { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-md); }
        .overview-image img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }

        /* Timeline */
        .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; position: relative; margin-top: 20px; }
        .timeline-item { background: rgba(255,249,242,.06); border: 1px solid rgba(255,249,242,.14); border-radius: var(--radius-card); padding: 24px 20px; text-align: center; transition: transform var(--transition), border-color var(--transition); }
        .timeline-item:hover { transform: translateY(-4px); border-color: var(--accent); }
        .timeline-step { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--primary); font-weight: 700; font-size: 16px; margin-bottom: 14px; }
        .timeline-item h3 { font-size: 17px; font-weight: 600; color: var(--text-inverse); margin-bottom: 8px; }
        .timeline-item p { font-size: 13px; color: rgba(255,249,242,.7); line-height: 1.6; margin-bottom: 0; }

        /* List cards */
        .list-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .list-card { background: #fff; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition); display: flex; flex-direction: column; }
        .list-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
        .list-card-image { width: 100%; aspect-ratio: 16/9; overflow: hidden; background: var(--bg-soft); }
        .list-card-image img { width: 100%; height: 100%; object-fit: cover; }
        .list-card-body { padding: 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
        .list-card-tag { font-size: 11px; font-weight: 600; color: var(--accent-dark); border: 1px solid var(--accent); padding: 2px 10px; border-radius: var(--radius-badge); display: inline-flex; align-self: flex-start; }
        .list-card-body h3 { font-size: 18px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 4px; }
        .list-card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 0; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
        .list-card-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-secondary); margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border); }
        .list-card-meta time { font-weight: 500; }
        .empty-state { text-align: center; padding: 48px 20px; background: #fff; border-radius: var(--radius-card); border: 1px dashed var(--border); color: var(--text-secondary); font-size: 15px; }
        .view-more { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--primary); font-size: 15px; margin-top: 24px; transition: gap var(--transition); }
        .view-more:hover { color: var(--accent-dark); gap: 10px; }

        /* Device cards */
        .device-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .device-card { background: #fff; border-radius: var(--radius-card); padding: 28px 22px; box-shadow: var(--shadow-sm); text-align: center; transition: transform var(--transition), box-shadow var(--transition); border: 1px solid var(--border); }
        .device-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .device-icon { width: 56px; height: 56px; border-radius: 16px; background: var(--primary-pale); display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; font-size: 26px; }
        .device-card h3 { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .device-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 0; }

        /* Comparison */
        .comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .comparison-image { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-md); }
        .comparison-image img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 5/4; }
        .comparison-content h2 { font-size: 26px; font-weight: 700; color: var(--primary); margin-bottom: 16px; }
        .comparison-content p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 12px; }
        .comparison-list { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-direction: column; gap: 10px; }
        .comparison-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text); line-height: 1.6; }
        .comparison-list li::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 8px; }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; transition: border-color var(--transition); }
        .faq-item.open { border-color: var(--primary); box-shadow: var(--shadow-sm); }
        .faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; }
        .faq-question:hover { color: var(--primary); }
        .faq-question .faq-icon { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 16px; color: var(--text-secondary); transition: transform var(--transition), background var(--transition), color var(--transition); }
        .faq-item.open .faq-question .faq-icon { transform: rotate(180deg); background: var(--primary); color: var(--text-inverse); border-color: var(--primary); }
        .faq-answer { display: none; padding: 0 22px 20px; font-size: 15px; color: var(--text-secondary); line-height: 1.7; }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open .faq-question { color: var(--primary); border-left: 4px solid var(--primary); padding-left: 18px; }

        /* CTA */
        .cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
        .cta-info h2 { font-size: 28px; font-weight: 700; color: var(--text-inverse); margin-bottom: 14px; }
        .cta-info p { color: rgba(255,249,242,.72); line-height: 1.8; margin-bottom: 24px; }
        .cta-steps { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
        .cta-steps li { display: flex; align-items: center; gap: 14px; color: rgba(255,249,242,.85); font-size: 15px; }
        .cta-step-num { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: var(--primary); font-weight: 700; font-size: 14px; display: flex; align-items: center; justify-content: center; }
        .cta-form-wrap { background: #fff; border-radius: var(--radius-card); padding: 32px 28px; box-shadow: var(--shadow-lg); }
        .cta-form-wrap h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 20px; }
        .form-group { margin-bottom: 16px; }
        .form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
        .form-group input, .form-group textarea, .form-group select { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius-btn); font-size: 15px; color: var(--text); background: var(--bg); transition: border-color var(--transition), box-shadow var(--transition); outline: none; }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(47,79,58,.1); }
        .form-group textarea { resize: vertical; min-height: 100px; }
        .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
        .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--primary); color: var(--text-inverse); font-weight: 600; font-size: 15px; padding: 12px 28px; border-radius: var(--radius-btn); transition: background var(--transition), transform var(--transition), box-shadow var(--transition); width: 100%; }
        .btn-primary:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); color: var(--text-inverse); }
        .btn-primary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

        /* Footer */
        .site-footer { background: var(--dark); color: rgba(255,249,242,.72); padding: 56px 0 24px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
        .footer-brand .nav-logo { margin-bottom: 14px; }
        .footer-brand .nav-logo-text strong { color: var(--text-inverse); }
        .footer-brand .nav-logo-text span { color: rgba(255,249,242,.5); }
        .footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,249,242,.6); max-width: 320px; }
        .footer-col h4 { font-size: 15px; font-weight: 600; color: var(--text-inverse); margin-bottom: 14px; }
        .footer-col a { display: block; font-size: 14px; color: rgba(255,249,242,.65); padding: 4px 0; transition: color var(--transition); }
        .footer-col a:hover { color: var(--accent); }
        .footer-contact p { font-size: 14px; color: rgba(255,249,242,.6); margin-bottom: 6px; }
        .footer-bottom { border-top: 1px solid rgba(255,249,242,.1); padding-top: 20px; text-align: center; }
        .footer-bottom p { font-size: 13px; color: rgba(255,249,242,.45); margin-bottom: 0; }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; }
            .overview-grid, .comparison-grid, .cta-grid { grid-template-columns: 1fr; gap: 28px; }
            .device-grid { grid-template-columns: repeat(2, 1fr); }
            .timeline { grid-template-columns: repeat(3, 1fr); gap: 16px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        }
        @media (max-width: 768px) {
            :root { --section-pad: 48px; }
            .nav-menu { display: none; }
            .nav-toggle { display: flex; }
            .mobile-nav { display: none; }
            .mobile-nav.open { display: flex; }
            .page-header h1 { font-size: 28px; }
            .section-title { font-size: 24px; }
            .list-grid { grid-template-columns: 1fr; }
            .device-grid { grid-template-columns: 1fr; }
            .timeline { grid-template-columns: 1fr; gap: 12px; }
            .form-row { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .cta-grid { grid-template-columns: 1fr; }
            .section-head--row { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            :root { --section-pad: 36px; }
            .page-header { padding: 32px 0 20px; }
            .page-header h1 { font-size: 24px; }
            .page-header .page-desc { font-size: 15px; }
            .section-title { font-size: 21px; }
            .overview-points span { font-size: 12px; padding: 4px 10px; }
            .list-card-body h3 { font-size: 16px; }
            .btn-primary { font-size: 14px; padding: 10px 20px; }
            .cta-form-wrap { padding: 24px 18px; }
            .faq-question { font-size: 15px; padding: 14px 16px; }
            .faq-answer { padding: 0 16px 16px; font-size: 14px; }
        }