/* roulang page: index */
:root{
            --bg:#141110;--surface:#1E1917;--surface2:#2A221E;--primary:#9C3B32;
            --accent:#D3B26E;--accent-light:#E6C98A;--text:#F4EDE2;--muted:#C4B6A6;
            --border:rgba(211,178,110,0.12);--gradient:linear-gradient(135deg,#9C3B32,#D3B26E);
            --radius-lg:30px;--radius-md:24px;
            --shadow-card:0 20px 40px rgba(0,0,0,0.45),0 0 60px rgba(211,178,110,0.06);
            --shadow-hover:0 24px 48px rgba(0,0,0,0.55),0 0 80px rgba(211,178,110,0.12);
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;font-size:16px}
        img{max-width:100%;display:block}
        a{color:inherit;text-decoration:none}
        button{font-family:inherit}

        .container{max-width:1200px;margin:0 auto;padding:0 24px}
        .text-gradient{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
        .text-gold-gradient{background:linear-gradient(135deg,#E6C98A,#D3B26E 60%,#9C3B32);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
        .section{position:relative;padding:110px 0}
        .section-compact{padding:80px 0}
        .chapter-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(211,178,110,0.35);border-radius:999px;padding:6px 18px;font-size:13px;font-weight:500;letter-spacing:0.12em;color:var(--accent);background:rgba(20,17,16,0.6)}
        .chapter-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--gradient)}
        .section-title{font-size:34px;font-weight:800;line-height:1.3;margin-top:16px;letter-spacing:-0.01em}
        .section-sub{color:var(--muted);font-size:17px;max-width:680px;margin-top:12px;line-height:1.7}
        .gold-line{width:64px;height:3px;border-radius:3px;background:var(--gradient);margin:24px 0}

        /* 按钮体系 */
        .btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--gradient);color:#fff;border-radius:999px;padding:15px 38px;font-weight:600;font-size:15px;border:none;cursor:pointer;transition:all .35s ease;box-shadow:0 4px 20px rgba(156,59,50,0.35);letter-spacing:0.04em}
        .btn-primary:hover{box-shadow:0 6px 30px rgba(211,178,110,0.35),0 0 60px rgba(211,178,110,0.15);transform:translateY(-2px)}
        .btn-primary:active{transform:scale(0.97)}
        .btn-secondary{display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--accent);border:1px solid rgba(211,178,110,0.5);border-radius:999px;padding:15px 38px;font-weight:600;font-size:15px;cursor:pointer;transition:all .35s ease;letter-spacing:0.04em}
        .btn-secondary:hover{background:rgba(211,178,110,0.1);border-color:var(--accent-light)}
        .btn-secondary:active{transform:scale(0.97)}

        /* Header */
        .site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(20,17,16,0.85);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
        .nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;max-width:1320px;margin:0 auto;padding:0 24px}
        .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:0.02em;color:var(--text)}
        .brand-dot{width:8px;height:8px;border-radius:50%;background:var(--gradient);display:inline-block}
        .nav-links{display:flex;align-items:center;gap:38px}
        .nav-links a{font-size:15px;font-weight:500;color:var(--muted);transition:color .3s;position:relative;padding:8px 0}
        .nav-links a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:var(--gradient);transition:width .3s}
        .nav-links a:hover,.nav-links a.active{color:var(--accent)}
        .nav-links a:hover::after,.nav-links a.active::after{width:100%}
        .nav-cta{padding:10px 24px;font-size:14px}
        .hamburger{display:none;background:none;border:1px solid var(--border);border-radius:12px;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
        .hamburger span{display:block;width:20px;height:2px;background:var(--accent);border-radius:2px;transition:all .3s}

        /* 进度步骤导航 */
        .step-nav{position:fixed;top:76px;left:0;right:0;z-index:99;background:rgba(20,17,16,0.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);transition:all .3s}
        .step-nav-inner{display:flex;justify-content:center;gap:0;max-width:1320px;margin:0 auto;padding:14px 24px}
        .step-item{display:flex;align-items:center;gap:12px;padding:8px 24px;border-radius:16px;transition:all .3s;cursor:pointer;position:relative}
        .step-item:hover{background:rgba(211,178,110,0.06)}
        .step-item.active .step-num{background:var(--gradient);color:#fff}
        .step-item.completed .step-num{background:rgba(211,178,110,0.2);color:var(--accent)}
        .step-num{width:32px;height:32px;border-radius:50%;border:1px solid rgba(211,178,110,0.4);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--accent);transition:all .3s}
        .step-info{display:flex;flex-direction:column}
        .step-name{font-size:14px;font-weight:600;color:var(--text)}
        .step-desc{font-size:12px;color:var(--muted);margin-top:2px}
        .step-connect{width:1px;height:24px;background:rgba(211,178,110,0.2);margin:0 4px}

        /* Hero */
        .hero{position:relative;min-height:100vh;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;margin-top:76px}
        .hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,17,16,0.7) 0%,rgba(20,17,16,0.5) 40%,rgba(20,17,16,0.8) 100%)}
        .hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:80px 24px;width:100%}
        .hero-eyebrow{font-size:13px;letter-spacing:0.18em;color:var(--accent);text-transform:uppercase;font-weight:500;display:flex;align-items:center;gap:12px}
        .hero-eyebrow::before{content:'';width:36px;height:1px;background:var(--gradient)}
        .hero-title{font-size:58px;font-weight:900;line-height:1.18;margin-top:28px;letter-spacing:-0.02em}
        .hero-sub{font-size:19px;color:var(--muted);max-width:560px;margin-top:24px;line-height:1.7}
        .hero-cta{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}
        .hero-meta{display:flex;gap:28px;margin-top:64px;padding-top:24px;border-top:1px solid var(--border);flex-wrap:wrap}
        .hero-meta span{font-size:12px;letter-spacing:0.14em;color:rgba(196,182,166,0.7);text-transform:uppercase}

        /* 痛点区 */
        .pain-section{background:var(--bg)}
        .pain-layout{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
        .pain-list{display:flex;flex-direction:column;gap:18px}
        .pain-item{display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:26px 28px;transition:all .35s}
        .pain-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
        .pain-num{font-size:16px;font-weight:800;color:var(--accent);background:rgba(211,178,110,0.12);border-radius:12px;width:38px;height:38px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
        .pain-item h4{font-size:17px;font-weight:600;color:var(--text);margin-bottom:6px}
        .pain-item p{font-size:14px;color:var(--muted);line-height:1.6}
        .pain-summary{margin-top:30px;padding:20px 28px;border-radius:var(--radius-md);background:rgba(156,59,50,0.1);border-left:4px solid var(--primary);font-size:16px;color:var(--warm);line-height:1.7}

        /* 解决方案区 */
        .solution-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
        .solution-grid{display:grid;grid-template-columns:1.2fr 0.8fr;gap:28px;margin-top:48px}
        .solution-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--surface-2);border:1px solid var(--border);transition:all .4s}
        .solution-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
        .solution-card-large{padding:0}
        .solution-card-large .sol-img{height:280px;object-fit:cover;width:100%}
        .solution-card-body{padding:34px}
        .solution-card-body h3{font-size:22px;font-weight:700;margin-bottom:12px}
        .solution-card-body p{font-size:15px;color:var(--muted);line-height:1.7}
        .sol-tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:0.08em;color:var(--accent);border:1px solid rgba(211,178,110,0.35);border-radius:999px;padding:4px 16px;margin-bottom:16px;background:rgba(20,17,16,0.4)}
        .solution-card-stack{display:flex;flex-direction:column;gap:28px}
        .solution-card-small{padding:34px;border-radius:var(--radius-lg);background:var(--surface-2);border:1px solid var(--border);transition:all .4s}
        .solution-card-small:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
        .solution-card-small h3{font-size:19px;font-weight:700;margin-bottom:10px}
        .solution-card-small p{font-size:14px;color:var(--muted);line-height:1.7}
        .sol-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--gradient);font-size:20px;margin-bottom:20px;color:#fff}

        /* 成果区 */
        .stats-section{background:url('/assets/images/backpic/back-2.jpg') center/cover fixed no-repeat;position:relative}
        .stats-section::before{content:'';position:absolute;inset:0;background:rgba(20,17,16,0.85)}
        .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:48px;position:relative;z-index:1}
        .stat-card{background:rgba(30,25,23,0.9);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 28px;text-align:center;backdrop-filter:blur(10px);transition:all .35s}
        .stat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
        .stat-number{font-size:52px;font-weight:900;font-family:'Noto Serif SC',STSong,serif;background:linear-gradient(135deg,#E6C98A,#D3B26E 70%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.1}
        .stat-label{font-size:14px;color:var(--muted);margin-top:12px;letter-spacing:0.06em}

        /* 证言区 */
        .testi-section{background:var(--bg)}
        .testi-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:48px}
        .testi-card{background:var(--surface);border-radius:var(--radius-lg);padding:38px;border:1px solid var(--border);position:relative;transition:all .35s}
        .testi-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
        .testi-quote{font-size:48px;font-family:Georgia,serif;color:var(--accent);line-height:0.6;margin-bottom:18px;opacity:0.5}
        .testi-stars{color:var(--accent);font-size:14px;letter-spacing:3px;margin-bottom:16px}
        .testi-text{font-size:16px;line-height:1.75;color:var(--text);margin-bottom:24px}
        .testi-meta{display:flex;align-items:center;gap:14px;border-top:1px solid var(--border);padding-top:20px}
        .testi-avatar{width:42px;height:42px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#fff}
        .testi-name{font-size:14px;font-weight:600;color:var(--text)}
        .testi-source{font-size:12px;color:var(--muted)}

        /* CTA区 */
        .cta-section{background:url('/assets/images/backpic/back-3.jpg') center/cover fixed no-repeat;position:relative}
        .cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,17,16,0.92) 0%,rgba(20,17,16,0.7) 100%)}
        .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
        .cta-title{font-size:36px;font-weight:800;line-height:1.3;margin-top:16px}
        .cta-desc{margin-top:20px;color:var(--muted);font-size:16px;line-height:1.7}
        .cta-contacts{display:flex;gap:28px;margin-top:32px;flex-wrap:wrap}
        .cta-contact{font-size:14px;color:var(--muted)}
        .cta-contact strong{color:var(--accent);font-weight:600}
        .cta-form{background:rgba(30,25,23,0.9);border:1px solid var(--border);border-radius:var(--radius-lg);padding:38px;backdrop-filter:blur(12px)}
        .cta-form h3{font-size:20px;font-weight:700;margin-bottom:8px}
        .cta-form p{font-size:14px;color:var(--muted);margin-bottom:24px}
        .form-group{margin-bottom:18px}
        .form-group label{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:6px;letter-spacing:0.03em}
        .form-control{width:100%;background:rgba(20,17,16,0.8);border:1px solid rgba(211,178,110,0.2);border-radius:14px;padding:14px 18px;color:var(--text);font-size:15px;outline:none;transition:all .3s}
        .form-control:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(211,178,110,0.12)}
        .form-control::placeholder{color:rgba(196,182,166,0.5)}

        /* 资讯区 */
        .news-section{background:var(--bg)}
        .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px}
        .news-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);transition:all .4s;display:block}
        .news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
        .news-thumb{position:relative;height:200px;overflow:hidden}
        .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
        .news-card:hover .news-thumb img{transform:scale(1.05)}
        .news-tag{position:absolute;top:14px;left:14px;font-size:12px;font-weight:600;color:var(--accent);background:rgba(20,17,16,0.8);border:1px solid rgba(211,178,110,0.35);border-radius:999px;padding:5px 14px;backdrop-filter:blur(8px)}
        .news-body{padding:26px}
        .news-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;color:var(--text);transition:color .3s}
        .news-card:hover .news-body h3{color:var(--accent)}
        .news-body p{font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:16px}
        .news-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);border-top:1px solid var(--border);padding-top:16px}
        .news-empty{grid-column:1/-1;border:2px dashed rgba(211,178,110,0.2);border-radius:var(--radius-lg);padding:80px;text-align:center;color:var(--muted)}

        /* Footer */
        .site-footer{background:#0F0C0B;border-top:1px solid var(--border)}
        .footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;padding:70px 0 50px}
        .footer-brand{font-size:20px;font-weight:800;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:10px}
        .footer-desc{font-size:14px;color:var(--muted);line-height:1.7;max-width:320px}
        .footer-col h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;letter-spacing:0.04em}
        .footer-col ul{list-style:none}
        .footer-col li{margin-bottom:12px}
        .footer-col a{font-size:14px;color:var(--muted);transition:color .3s}
        .footer-col a:hover{color:var(--accent)}
        .footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:26px 0;border-top:1px solid var(--border);flex-wrap:wrap;gap:12px}
        .footer-copyright{font-size:13px;color:rgba(196,182,166,0.6)}
        .footer-tags{display:flex;gap:16px;flex-wrap:wrap}
        .footer-tags a{font-size:12px;color:rgba(196,182,166,0.4);transition:color .3s}
        .footer-tags a:hover{color:var(--accent)}

        /* 移动菜单 */
        .mobile-menu{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:85vw;background:rgba(20,17,16,0.98);backdrop-filter:blur(24px);z-index:200;transform:translateX(100%);transition:transform .4s cubic-bezier(0.22,1,0.36,1);border-left:1px solid var(--border);overflow-y:auto;padding:30px}
        .mobile-menu.open{transform:translateX(0)}
        .mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px}
        .mobile-menu-close{background:none;border:1px solid var(--border);border-radius:12px;width:40px;height:40px;color:var(--accent);font-size:20px;cursor:pointer}
        .mobile-menu-links{display:flex;flex-direction:column;gap:8px}
        .mobile-menu-links a{font-size:18px;font-weight:600;color:var(--text);padding:14px 12px;border-radius:12px;transition:all .3s}
        .mobile-menu-links a:hover,.mobile-menu-links a.active{background:rgba(211,178,110,0.08);color:var(--accent)}
        .mobile-cta{margin-top:30px}

        .overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:150;opacity:0;visibility:hidden;transition:all .3s}
        .overlay.open{opacity:1;visibility:visible}

        /* 响应式 */
        @media (max-width:1024px){
            .solution-grid{grid-template-columns:1fr 1fr}
            .solution-card-stack{grid-template-columns:1fr 1fr}
            .footer-top{grid-template-columns:1fr 1fr}
        }
        @media (max-width:768px){
            .nav-links{display:none}
            .nav-cta{display:none}
            .hamburger{display:flex}
            .step-nav-inner{overflow-x:auto;gap:0;justify-content:flex-start;padding:10px 16px}
            .step-item{padding:6px 16px;flex-direction:column;gap:4px;min-width:90px;text-align:center}
            .step-info{display:none}
            .step-connect{display:none}
            .hero-title{font-size:36px}
            .hero-sub{font-size:16px}
            .hero{margin-top:130px}
            .pain-layout{grid-template-columns:1fr;gap:48px}
            .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
            .stat-number{font-size:36px}
            .testi-grid{grid-template-columns:1fr}
            .cta-inner{grid-template-columns:1fr;gap:40px}
            .news-grid{grid-template-columns:1fr}
            .footer-top{grid-template-columns:1fr;gap:36px}
            .section{padding:64px 0}
            .section-title{font-size:26px}
            .solution-grid{grid-template-columns:1fr}
            .solution-card-stack{grid-template-columns:1fr}
            .footer-bottom{flex-direction:column;text-align:center}
        }
        @media (min-width:520px) and (max-width:768px){
            .news-grid{grid-template-columns:1fr}
        }
        @media (max-width:520px){
            .hero-title{font-size:30px}
            .hero-cta{flex-direction:column}
            .hero-cta .btn-primary,.hero-cta .btn-secondary{width:100%}
            .hero-meta{gap:16px}
            .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
            .stat-card{padding:24px 16px}
            .stat-number{font-size:30px}
            .form-group{margin-bottom:14px}
            .cta-form{padding:26px}
            .btn-primary,.btn-secondary{padding:14px 28px;font-size:14px}
        }

/* roulang page: article */
:root {
            --bg-dark: #141110;
            --surface: #1E1917;
            --surface-2: #2A221E;
            --brand: #9C3B32;
            --brand-gold: #D3B26E;
            --gold-light: #E6C98A;
            --text-main: #F4EDE2;
            --text-muted: #C4B6A6;
            --border: rgba(211, 178, 110, 0.12);
            --gradient: linear-gradient(135deg, #9C3B32 0%, #D3B26E 100%);
            --radius-lg: 30px;
            --radius-md: 24px;
            --radius-sm: 12px;
            --shadow: 0 20px 40px rgba(0, 0, 0, 0.45), 0 0 60px rgba(211, 178, 110, 0.06);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.55), 0 0 80px rgba(211, 178, 110, 0.12);
            --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient);
            color: #fff;
            border: none;
            border-radius: 999px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(156, 59, 50, 0.3);
            line-height: 1.4;
        }
        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: 0 4px 30px rgba(211, 178, 110, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--brand-gold);
            border: 1px solid rgba(211, 178, 110, 0.5);
            border-radius: 999px;
            padding: 13px 36px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            line-height: 1.4;
        }
        .btn-outline:hover {
            background: rgba(211, 178, 110, 0.1);
            border-color: var(--brand-gold);
        }
        .btn-outline:active {
            transform: scale(0.97);
        }

        .btn-sm {
            padding: 10px 24px;
            font-size: 14px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(20, 17, 16, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-main);
            white-space: nowrap;
        }
        .brand:hover {
            color: var(--gold-light);
        }

        .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient);
            box-shadow: 0 0 12px rgba(211, 178, 110, 0.6);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 2px;
            transition: color 0.3s ease;
        }
        .nav-links a:hover {
            color: var(--gold-light);
        }
        .nav-links a.active {
            color: var(--gold-light);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--gradient);
            border-radius: 2px;
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            height: 100vh;
            background: rgba(20, 17, 16, 0.98);
            border-left: 1px solid var(--border);
            z-index: 200;
            padding: 100px 32px 32px;
            flex-direction: column;
            gap: 24px;
            transform: translateX(100%);
            transition: transform 0.35s ease;
        }
        .mobile-menu.open {
            transform: translateX(0);
            display: flex;
        }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-main);
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }
        .mobile-menu a:hover {
            color: var(--gold-light);
        }
        .mobile-menu a.active {
            color: var(--gold-light);
        }
        .mobile-menu .btn-primary {
            margin-top: 12px;
            text-align: center;
        }

        .menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 32px;
            cursor: pointer;
            line-height: 1;
        }

        /* ===== Step Nav ===== */
        .step-nav {
            background: rgba(20, 17, 16, 0.92);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            position: sticky;
            top: 72px;
            z-index: 90;
            backdrop-filter: blur(10px);
        }

        .step-nav-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all 0.3s ease;
            background: transparent;
        }
        .step-item:hover {
            background: rgba(211, 178, 110, 0.06);
            border-color: var(--border);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(211, 178, 110, 0.35);
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-gold);
            background: rgba(20, 17, 16, 0.5);
            flex-shrink: 0;
            font-family: var(--font-serif);
        }

        .step-text {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .step-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
        }

        .step-desc {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .step-item.active {
            background: rgba(211, 178, 110, 0.08);
            border-color: rgba(211, 178, 110, 0.3);
        }
        .step-item.active .step-num {
            background: var(--gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 14px rgba(211, 178, 110, 0.4);
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 72px 0 56px;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
        }
        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 17, 16, 0.72) 0%, rgba(20, 17, 16, 0.88) 100%);
        }
        .article-banner .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }
        .breadcrumb a:hover {
            color: var(--gold-light);
        }
        .breadcrumb .sep {
            color: rgba(211, 178, 110, 0.5);
        }
        .breadcrumb .current {
            color: var(--text-main);
        }

        .article-banner h1 {
            font-family: var(--font-serif);
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-main);
            max-width: 860px;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-divider {
            color: rgba(211, 178, 110, 0.4);
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 72px 20px 100px;
            max-width: 760px;
        }

        .article-content {
            color: var(--text-main);
            font-size: 17px;
            line-height: 1.8;
        }

        .article-content > p:first-child::first-letter {
            font-family: var(--font-serif);
            font-size: 56px;
            font-weight: 700;
            float: left;
            line-height: 1;
            padding: 4px 10px 0 0;
            color: var(--brand-gold);
        }

        .article-content h2 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            margin: 48px 0 16px;
            color: var(--text-main);
            line-height: 1.4;
            padding-left: 16px;
            border-left: 3px solid var(--brand-gold);
        }

        .article-content h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            margin: 36px 0 12px;
            color: var(--gold-light);
            line-height: 1.4;
        }

        .article-content p {
            margin: 0 0 24px;
        }

        .article-content a {
            color: var(--gold-light);
            border-bottom: 1px solid rgba(211, 178, 110, 0.3);
            transition: border-color 0.3s ease;
        }
        .article-content a:hover {
            border-color: var(--gold-light);
        }

        .article-content blockquote {
            margin: 32px 0;
            padding: 20px 24px;
            background: var(--surface);
            border-left: 4px solid var(--brand-gold);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted);
            font-size: 16px;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 32px 0;
            box-shadow: var(--shadow);
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 24px;
            padding-left: 28px;
        }
        .article-content li {
            margin-bottom: 10px;
            line-height: 1.75;
        }
        .article-content ul li {
            list-style: none;
            position: relative;
        }
        .article-content ul li::before {
            content: "";
            position: absolute;
            left: -18px;
            top: 11px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gradient);
        }

        .article-content hr {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 40px 0;
        }

        /* ===== Related ===== */
        .related-section {
            margin-top: 72px;
            padding-top: 48px;
            border-top: 1px solid var(--border);
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 28px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-title::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gradient);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.35s ease;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(211, 178, 110, 0.3);
        }

        .related-card-img {
            position: relative;
            height: 160px;
            overflow: hidden;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }

        .related-card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
        }

        .related-card-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .related-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 46px;
        }
        .related-card:hover .related-card-body h3 {
            color: var(--gold-light);
        }

        .related-date {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== Tag ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            border: 1px solid rgba(211, 178, 110, 0.4);
            background: rgba(20, 17, 16, 0.7);
            color: var(--gold-light);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        /* ===== Back Link ===== */
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 40px;
            font-size: 15px;
            color: var(--text-muted);
            transition: color 0.3s ease, transform 0.3s ease;
        }
        .back-link:hover {
            color: var(--gold-light);
            transform: translateX(-4px);
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 100px 0;
        }
        .not-found p {
            font-size: 20px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f0c0b;
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--gold-light);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li {
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }
        .footer-col ul a:hover {
            color: var(--gold-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 28px;
        }

        .footer-copyright {
            font-size: 13px;
            color: #8a7a6a;
            letter-spacing: 0.03em;
        }

        .footer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-tags a {
            font-size: 12px;
            color: #8a7a6a;
            padding: 4px 10px;
            border: 1px solid rgba(211, 178, 110, 0.1);
            border-radius: 999px;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
        }
        .footer-tags a:hover {
            color: var(--gold-light);
            border-color: rgba(211, 178, 110, 0.3);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 767px) {
            .header-inner {
                height: 64px;
            }
            .nav-links {
                display: none;
            }
            .header-actions .btn-primary {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }

            .step-nav {
                top: 64px;
                overflow-x: auto;
                padding: 10px 0;
            }
            .step-nav-inner {
                grid-template-columns: repeat(4, minmax(160px, 1fr));
                gap: 8px;
                padding: 0 12px;
            }
            .step-item {
                padding: 8px 12px;
            }
            .step-desc {
                display: none;
            }

            .article-banner {
                padding: 48px 0 36px;
            }
            .article-banner h1 {
                font-size: 30px;
                line-height: 1.35;
            }
            .article-meta {
                font-size: 13px;
                gap: 6px;
            }

            .article-main {
                padding: 48px 20px 64px;
                max-width: 100%;
            }
            .article-content {
                font-size: 16px;
                line-height: 1.8;
            }
            .article-content h2 {
                font-size: 24px;
                margin-top: 36px;
            }
            .article-content h3 {
                font-size: 20px;
            }
            .article-content > p:first-child::first-letter {
                font-size: 44px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-card-img {
                height: 140px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .article-banner h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .related-card-body h3 {
                font-size: 15px;
            }
            .breadcrumb {
                font-size: 13px;
            }
        }

        /* ===== Focus visibility ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--brand-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

/* roulang page: category1 */
:root {
            --bg: #141110;
            --surface: #1E1917;
            --surface-2: #2A221E;
            --brand: #9C3B32;
            --gold: #D3B26E;
            --gold-light: #E6C98A;
            --text: #F4EDE2;
            --muted: #C4B6A6;
            --border: rgba(211, 178, 110, 0.12);
            --radius-lg: 30px;
            --radius-md: 24px;
            --radius-sm: 14px;
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.45), 0 0 60px rgba(211, 178, 110, 0.06);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.55), 0 0 80px rgba(211, 178, 110, 0.12);
            --grad-brand: linear-gradient(135deg, #9C3B32 0%, #D3B26E 100%);
            --grad-gold-text: linear-gradient(135deg, #E6C98A 0%, #D3B26E 50%, #9C3B32 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s, background 0.25s, border-color 0.25s, box-shadow 0.25s, opacity 0.25s, transform 0.25s;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.25;
            font-weight: 800;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 760px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(20, 17, 16, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 900;
            letter-spacing: 1px;
            white-space: nowrap;
            color: var(--text);
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--grad-brand);
            box-shadow: 0 0 12px rgba(211, 178, 110, 0.6);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-links a {
            font-size: 15px;
            font-weight: 600;
            color: var(--muted);
            position: relative;
            padding: 8px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--grad-brand);
            transition: width 0.3s;
            border-radius: 2px;
        }

        .nav-links a:hover {
            color: var(--gold-light);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--gold-light);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--grad-brand);
            color: #fff;
            border-radius: 999px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 700;
            border: none;
            transition: all 0.3s;
            white-space: nowrap;
            box-shadow: 0 4px 20px rgba(156, 59, 50, 0.35);
        }

        .btn-primary:hover {
            box-shadow: 0 0 30px rgba(211, 178, 110, 0.4), 0 6px 24px rgba(156, 59, 50, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-primary.btn-sm {
            padding: 9px 22px;
            font-size: 14px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--gold);
            border: 1px solid var(--gold);
            border-radius: 999px;
            padding: 13px 32px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s;
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: rgba(211, 178, 110, 0.1);
            border-color: var(--gold-light);
            color: var(--gold-light);
            box-shadow: 0 0 24px rgba(211, 178, 110, 0.15);
        }

        .btn-outline:active {
            transform: scale(0.97);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            color: var(--gold);
        }

        .nav-toggle svg {
            width: 22px;
            height: 22px;
        }

        /* ===== 移动端抽屉 ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--surface);
            z-index: 200;
            padding: 30px 24px;
            border-left: 1px solid var(--border);
            transition: right 0.35s ease;
            flex-direction: column;
            gap: 20px;
        }

        .mobile-drawer.open {
            right: 0;
            display: flex;
        }

        .drawer-close {
            align-self: flex-end;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 20px;
        }

        .mobile-drawer a {
            display: block;
            padding: 14px 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            border-bottom: 1px solid var(--border);
        }

        .mobile-drawer a.active {
            color: var(--gold-light);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 150;
        }

        .drawer-overlay.open {
            display: block;
        }

        /* ===== 进度步骤导航 ===== */
        .step-nav {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(20, 17, 16, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .step-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .step-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 14px;
            border-radius: 16px;
            transition: background 0.3s;
            flex-shrink: 0;
        }

        .step-item:hover {
            background: rgba(211, 178, 110, 0.06);
        }

        .step-num {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
            color: var(--muted);
            background: var(--surface);
            transition: all 0.3s;
            flex-shrink: 0;
        }

        .step-item.active .step-num {
            background: var(--grad-brand);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 18px rgba(211, 178, 110, 0.4);
        }

        .step-item.done .step-num {
            background: rgba(211, 178, 110, 0.15);
            border-color: var(--gold);
            color: var(--gold);
        }

        .step-text {
            display: flex;
            flex-direction: column;
        }

        .step-text strong {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
        }

        .step-text span {
            font-size: 12px;
            color: var(--muted);
            white-space: nowrap;
        }

        /* ===== 分类横幅 Hero ===== */
        .category-hero {
            position: relative;
            padding: 190px 0 100px;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            min-height: 60vh;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 17, 16, 0.82) 0%, rgba(20, 17, 16, 0.60) 50%, rgba(20, 17, 16, 0.92) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

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

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

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

        .breadcrumb .sep {
            color: var(--muted);
            opacity: 0.5;
        }

        .category-hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 900;
            margin-bottom: 18px;
            letter-spacing: 1px;
            max-width: 680px;
        }

        .category-hero h1 .grad-text {
            background: var(--grad-gold-text);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-meta {
            display: flex;
            gap: 24px;
            margin-top: 48px;
            font-size: 13px;
            color: var(--muted);
            letter-spacing: 1px;
            flex-wrap: wrap;
        }

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

        .hero-meta span::before {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--gold);
            display: inline-block;
        }

        /* ===== 区块通用 ===== */
        .section {
            padding: 100px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--gold);
            border: 1px solid var(--border);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 900;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-sub {
            font-size: 16px;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.7;
        }

        .gold-line {
            width: 60px;
            height: 3px;
            background: var(--grad-brand);
            border-radius: 3px;
            margin: 20px 0 32px;
        }

        /* ===== 分类介绍区 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

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

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

        .intro-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(156, 59, 50, 0.10), transparent 50%, rgba(211, 178, 110, 0.10));
            pointer-events: none;
        }

        .intro-content h2 {
            font-size: 30px;
            font-weight: 900;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .intro-content p {
            color: var(--muted);
            font-size: 15.5px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .intro-points {
            list-style: none;
            margin-top: 20px;
        }

        .intro-points li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
            color: var(--text);
        }

        .intro-points li:last-child {
            border-bottom: none;
        }

        .intro-points .point-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: rgba(211, 178, 110, 0.1);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--gold);
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ===== 特色内容区 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.4s;
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(211, 178, 110, 0.3);
        }

        .feature-card .card-media {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

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

        .feature-card:hover .card-media img {
            transform: scale(1.04);
        }

        .feature-card .card-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(20, 17, 16, 0.7) 100%);
        }

        .feature-card .card-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(20, 17, 16, 0.75);
            border: 1px solid var(--border);
            color: var(--gold-light);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            padding: 4px 14px;
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }

        .feature-card .card-body {
            padding: 28px 28px 32px;
        }

        .feature-card .card-body h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .feature-card .card-body p {
            font-size: 14.5px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

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

        .card-link:hover {
            color: var(--gold-light);
            gap: 10px;
        }

        .card-link svg {
            width: 16px;
            height: 16px;
        }

        /* ===== 适用场景 ===== */
        .scenes-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scene-item {
            background: var(--surface-2);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }

        .scene-item:hover {
            border-color: rgba(211, 178, 110, 0.35);
            box-shadow: 0 0 30px rgba(211, 178, 110, 0.08);
            transform: translateY(-4px);
        }

        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(211, 178, 110, 0.1);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .scene-item h4 {
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .scene-item p {
            font-size: 13.5px;
            color: var(--muted);
            line-height: 1.6;
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .faq-item.open {
            border-color: rgba(211, 178, 110, 0.4);
            box-shadow: 0 0 24px rgba(211, 178, 110, 0.06);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            text-align: left;
            background: transparent;
            gap: 16px;
        }

        .faq-icon {
            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(--gold);
            flex-shrink: 0;
            transition: transform 0.3s, background 0.3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(211, 178, 110, 0.15);
        }

        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            padding: 0 28px 24px;
            max-height: 500px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 120px 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 17, 16, 0.85) 0%, rgba(20, 17, 16, 0.90) 100%);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--muted);
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .cta-contact {
            font-size: 14px;
            color: var(--muted);
            letter-spacing: 0.5px;
        }

        .cta-contact a {
            color: var(--gold);
            font-weight: 700;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f0d0c;
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 900;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--grad-brand);
            box-shadow: 0 0 12px rgba(211, 178, 110, 0.6);
            flex-shrink: 0;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
        }

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

        .footer-col a {
            font-size: 14px;
            color: var(--muted);
        }

        .footer-col a:hover {
            color: var(--gold-light);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-copyright {
            font-size: 12px;
            color: rgba(196, 182, 166, 0.6);
            letter-spacing: 0.5px;
        }

        .footer-tags {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-tags a {
            font-size: 12px;
            color: rgba(196, 182, 166, 0.5);
            letter-spacing: 1px;
        }

        .footer-tags a:hover {
            color: var(--gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .scenes-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .nav-links,
            .header-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .step-nav-inner {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                height: 64px;
                gap: 8px;
                padding-bottom: 4px;
            }
            .step-item {
                padding: 6px 10px;
                gap: 8px;
            }
            .step-text span {
                display: none;
            }
            .step-text strong {
                font-size: 13px;
            }
            .step-num {
                width: 26px;
                height: 26px;
                font-size: 12px;
            }
            .section {
                padding: 64px 0;
            }
            .category-hero {
                padding: 150px 0 64px;
                min-height: 50vh;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-outline {
                width: 100%;
                text-align: center;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-media img {
                height: 260px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scenes-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 24px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px;
            }
            .cta-section {
                padding: 80px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-buttons .btn-primary,
            .cta-buttons .btn-outline {
                width: 100%;
                text-align: center;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }