/* roulang page: index */
:root {
--color-primary: #6c5ce7;
--color-primary-dark: #5a4bd1;
--color-accent: #00d4ff;
--color-accent-dark: #00b8d4;
--color-bg: #0a0a14;
--color-bg-card: #12121f;
--color-bg-elevated: #1a1a2e;
--color-text: #f1f1f6;
--color-text-muted: #9a9ab0;
--color-border: #2a2a40;
--radius-sm: 8px;
--radius-md: 14px;
--radius-lg: 24px;
--radius-xl: 32px;
--shadow-card: 0 8px 32px rgba(0,0,0,0.45), 0 2px 8px rgba(108,92,231,0.08);
--shadow-glow: 0 0 40px rgba(108,92,231,0.15);
--transition: 0.25s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Noto Sans SC',system-ui,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--color-accent);text-decoration:none;transition:color var(--transition)}a:hover{color:#fff}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container{padding:0 16px}}
.section{padding:80px 0}@media(max-width:768px){.section{padding:56px 0}}@media(max-width:520px){.section{padding:40px 0}}
.section-title{font-size:2.25rem;font-weight:700;text-align:center;margin-bottom:12px;background:linear-gradient(135deg,#fff 30%,var(--color-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:640px){.section-title{font-size:1.75rem}}
.section-subtitle{text-align:center;color:var(--color-text-muted);font-size:1.1rem;max-width:680px;margin:0 auto 48px}@media(max-width:640px){.section-subtitle{font-size:0.95rem;margin-bottom:32px}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:999px;font-weight:600;font-size:0.95rem;cursor:pointer;border:none;transition:all var(--transition);position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;box-shadow:0 4px 20px rgba(108,92,231,0.35)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(108,92,231,0.5);color:#fff}
.btn-outline{background:transparent;color:var(--color-accent);border:1.5px solid var(--color-accent)}.btn-outline:hover{background:rgba(0,212,255,0.1);transform:translateY(-2px);color:var(--color-accent)}
.btn-ghost{background:rgba(255,255,255,0.06);color:var(--color-text);border:1px solid var(--color-border)}.btn-ghost:hover{background:rgba(255,255,255,0.12);color:#fff;transform:translateY(-1px)}
.card{background:var(--color-bg-card);border-radius:var(--radius-md);border:1px solid var(--color-border);padding:28px;transition:all var(--transition);box-shadow:var(--shadow-card)}.card:hover{border-color:rgba(108,92,231,0.3);transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.badge{display:inline-block;padding:4px 14px;border-radius:999px;font-size:0.75rem;font-weight:600;letter-spacing:0.3px;background:rgba(108,92,231,0.18);color:var(--color-primary);border:1px solid rgba(108,92,231,0.25)}
.badge-accent{background:rgba(0,212,255,0.12);color:var(--color-accent);border-color:rgba(0,212,255,0.2)}
.glass{background:rgba(18,18,31,0.75);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,0.06)}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--color-border),transparent);margin:24px 0}
header{position:sticky;top:0;z-index:100;background:rgba(10,10,20,0.85);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid rgba(255,255,255,0.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-size:1.3rem;font-weight:800;background:linear-gradient(135deg,#fff 30%,var(--color-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-0.5px;white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none}
.nav-list li a{display:block;padding:8px 18px;border-radius:999px;font-size:0.9rem;font-weight:500;color:var(--color-text-muted);transition:all var(--transition);white-space:nowrap}
.nav-list li a:hover,.nav-list li a.active{color:#fff;background:rgba(108,92,231,0.15)}
.nav-list li a.active{color:var(--color-accent);background:rgba(0,212,255,0.1)}
.mobile-toggle{display:none;background:none;border:none;color:var(--color-text);font-size:1.5rem;cursor:pointer;padding:8px}
@media(max-width:768px){
.mobile-toggle{display:block}
.nav-list{position:fixed;top:68px;left:0;right:0;background:rgba(10,10,20,0.98);backdrop-filter:blur(24px);flex-direction:column;padding:20px 24px;gap:8px;border-bottom:1px solid var(--color-border);transform:translateY(-120%);opacity:0;transition:all 0.35s cubic-bezier(0.4,0,0.2,1);pointer-events:none}
.nav-list.open{transform:translateY(0);opacity:1;pointer-events:auto}
.nav-list li a{padding:12px 20px;font-size:1rem;width:100%;text-align:center}
}
.hero{position:relative;min-height:88vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(10,10,20,0.55) 0%,rgba(10,10,20,0.88) 100%);z-index:1}
.hero-glow{position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(108,92,231,0.12) 0%,transparent 70%);top:-120px;right:-120px;z-index:0;animation:pulseGlow 8s ease-in-out infinite alternate}
@keyframes pulseGlow{0%{opacity:0.4;transform:scale(1)}100%{opacity:1;transform:scale(1.15)}}
.hero-content{position:relative;z-index:2;max-width:860px;padding:40px 24px}
.hero-badge{display:inline-block;padding:6px 20px;border-radius:999px;font-size:0.85rem;font-weight:600;background:rgba(0,212,255,0.12);color:var(--color-accent);border:1px solid rgba(0,212,255,0.2);margin-bottom:24px;letter-spacing:0.5px}
.hero h1{font-size:3.5rem;font-weight:800;line-height:1.2;margin-bottom:20px;background:linear-gradient(135deg,#fff 20%,var(--color-accent) 80%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:768px){.hero h1{font-size:2.4rem}}@media(max-width:520px){.hero h1{font-size:1.8rem}}
.hero p{font-size:1.2rem;color:var(--color-text-muted);max-width:640px;margin:0 auto 36px;line-height:1.8}@media(max-width:640px){.hero p{font-size:1rem}}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}@media(max-width:1024px){.grid-3{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.grid-3{grid-template-columns:1fr}}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}@media(max-width:768px){.grid-2{grid-template-columns:1fr}}
.feat-card{text-align:center;padding:36px 24px}
.feat-icon{width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:1.6rem;background:rgba(108,92,231,0.12);color:var(--color-primary);border:1px solid rgba(108,92,231,0.15)}
.feat-card h3{font-size:1.2rem;font-weight:700;margin-bottom:10px}
.feat-card p{color:var(--color-text-muted);font-size:0.92rem;line-height:1.7}
.cat-card{position:relative;border-radius:var(--radius-md);overflow:hidden;min-height:280px;display:flex;align-items:flex-end;cursor:pointer;transition:all var(--transition);border:1px solid var(--color-border)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-glow);border-color:rgba(108,92,231,0.3)}
.cat-card-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0;transition:transform 0.5s ease}
.cat-card:hover .cat-card-bg{transform:scale(1.06)}
.cat-card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,10,20,0.92) 0%,rgba(10,10,20,0.2) 60%,rgba(10,10,20,0.05) 100%);z-index:1}
.cat-card-body{position:relative;z-index:2;padding:28px 24px;width:100%}
.cat-card-body h3{font-size:1.4rem;font-weight:700;margin-bottom:6px;color:#fff}
.cat-card-body p{color:var(--color-text-muted);font-size:0.9rem;margin-bottom:12px}
.cat-card-body .badge{background:rgba(0,212,255,0.15);color:var(--color-accent);border-color:rgba(0,212,255,0.2)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}@media(max-width:768px){.stats-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.stats-grid{grid-template-columns:1fr 1fr}}
.stat-card{text-align:center;padding:28px 16px;background:var(--color-bg-card);border-radius:var(--radius-md);border:1px solid var(--color-border)}
.stat-number{font-size:2.4rem;font-weight:800;background:linear-gradient(135deg,var(--color-accent),var(--color-primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.stat-label{color:var(--color-text-muted);font-size:0.9rem;margin-top:6px}
.post-list{display:flex;flex-direction:column;gap:16px}
.post-item{display:flex;align-items:flex-start;gap:18px;padding:20px 24px;background:var(--color-bg-card);border-radius:var(--radius-md);border:1px solid var(--color-border);transition:all var(--transition)}
.post-item:hover{border-color:rgba(108,92,231,0.25);transform:translateX(4px);box-shadow:var(--shadow-glow)}
.post-item .post-meta{display:flex;gap:12px;align-items:center;flex-shrink:0;font-size:0.8rem;color:var(--color-text-muted)}
.post-item .post-meta .cat{color:var(--color-accent);font-weight:600}
.post-item .post-title{font-weight:600;font-size:1rem;color:var(--color-text);transition:color var(--transition);flex:1}
.post-item:hover .post-title{color:var(--color-accent)}
.post-item .post-date{flex-shrink:0;font-size:0.8rem;color:var(--color-text-muted);white-space:nowrap}
@media(max-width:640px){.post-item{flex-direction:column;gap:8px;padding:16px 18px}.post-item .post-meta{font-size:0.75rem}.post-item .post-date{align-self:flex-end}}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:768px){.faq-grid{grid-template-columns:1fr}}
.faq-item{background:var(--color-bg-card);border-radius:var(--radius-md);border:1px solid var(--color-border);padding:20px 24px;transition:all var(--transition)}
.faq-item:hover{border-color:rgba(108,92,231,0.2)}
.faq-item h4{font-size:1.05rem;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.faq-item h4 i{color:var(--color-accent);font-size:0.85rem}
.faq-item p{color:var(--color-text-muted);font-size:0.9rem;line-height:1.7;padding-left:26px}
.cta-section{background:linear-gradient(135deg,rgba(108,92,231,0.08) 0%,rgba(0,212,255,0.05) 100%);border:1px solid rgba(108,92,231,0.12);border-radius:var(--radius-lg);padding:60px 40px;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(108,92,231,0.06) 0%,transparent 70%);top:-100px;right:-100px}
.cta-section h2{font-size:2rem;font-weight:700;margin-bottom:12px}@media(max-width:640px){.cta-section h2{font-size:1.5rem}}
.cta-section p{color:var(--color-text-muted);max-width:540px;margin:0 auto 28px;font-size:1rem}
footer{background:var(--color-bg-card);border-top:1px solid var(--color-border);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px}@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}@media(max-width:520px){.footer-grid{grid-template-columns:1fr;gap:24px}}
footer h4{font-size:1rem;font-weight:700;margin-bottom:16px;color:#fff}
footer p,footer a{font-size:0.88rem;color:var(--color-text-muted);line-height:2}
footer a:hover{color:var(--color-accent)}
.footer-bottom{border-top:1px solid var(--color-border);margin-top:32px;padding-top:20px;text-align:center;font-size:0.82rem;color:var(--color-text-muted)}
.empty-state{text-align:center;padding:40px 20px;color:var(--color-text-muted);font-size:1rem;background:var(--color-bg-card);border-radius:var(--radius-md);border:1px dashed var(--color-border)}

/* roulang page: category1 */
:root {
            --color-primary: #7c3aed;
            --color-primary-dark: #5b21b6;
            --color-primary-light: #a78bfa;
            --color-accent: #f59e0b;
            --color-accent-dark: #d97706;
            --color-bg: #0f0f1a;
            --color-bg-card: #1a1a2e;
            --color-bg-elevated: #232340;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --color-text-dim: #64748b;
            --color-border: #2d2d4a;
            --color-success: #10b981;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* header */
        header {
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0;
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            height: 100%;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo i {
            -webkit-text-fill-color: var(--color-accent);
            font-size: 1.4rem;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .nav-list li a {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-list li a:hover {
            color: var(--color-text);
            background: rgba(124, 58, 237, 0.12);
        }
        .nav-list li a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--color-border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-card);
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list li a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1.05rem;
            }
        }

        /* footer */
        footer {
            background: var(--color-bg-card);
            border-top: 1px solid var(--color-border);
            padding: 60px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-grid h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-grid p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-grid a {
            color: var(--color-text-muted);
            transition: var(--transition);
        }
        .footer-grid a:hover {
            color: var(--color-primary-light);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 24px;
            text-align: center;
            color: var(--color-text-dim);
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px 20px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* page specific */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(15, 15, 26, 0.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--color-border);
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(124, 58, 237, 0.08), transparent 70%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff, var(--color-primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            max-width: 640px;
            line-height: 1.7;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-dim);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-primary-light);
        }
        .breadcrumb span {
            color: var(--color-primary-light);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 40px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

        /* section styling */
        .section {
            padding: 70px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin-bottom: 40px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-header .section-title {
            margin-bottom: 4px;
        }
        .section-header .section-subtitle {
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }

        /* cards */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(124, 58, 237, 0.3);
            box-shadow: var(--shadow-glow);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
            background: var(--color-bg-elevated);
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-body h3 a {
            color: var(--color-text);
        }
        .card-body h3 a:hover {
            color: var(--color-primary-light);
        }
        .card-body p {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--color-text-dim);
            flex-wrap: wrap;
        }
        .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card-meta i {
            color: var(--color-primary-light);
        }
        .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.18);
            color: var(--color-primary-light);
            border: 1px solid rgba(124, 58, 237, 0.2);
        }
        .badge-accent {
            background: rgba(245, 158, 11, 0.18);
            color: var(--color-accent);
            border-color: rgba(245, 158, 11, 0.2);
        }
        .badge-success {
            background: rgba(16, 185, 129, 0.18);
            color: var(--color-success);
            border-color: rgba(16, 185, 129, 0.2);
        }

        /* grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* tags */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .tag {
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            transition: var(--transition);
            cursor: default;
        }
        .tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary-light);
            background: rgba(124, 58, 237, 0.08);
        }
        .tag.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        /* featured card */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: var(--transition);
        }
        .featured-card:hover {
            border-color: rgba(124, 58, 237, 0.3);
            box-shadow: var(--shadow-glow);
        }
        .featured-card .card-img {
            aspect-ratio: auto;
            height: 100%;
            min-height: 280px;
            object-fit: cover;
        }
        .featured-card .card-body {
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .card-body h3 {
            font-size: 1.5rem;
        }
        .featured-card .card-body p {
            font-size: 1rem;
        }
        @media (max-width: 768px) {
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .card-img {
                min-height: 200px;
                max-height: 240px;
            }
            .featured-card .card-body {
                padding: 24px 20px;
            }
            .featured-card .card-body h3 {
                font-size: 1.25rem;
            }
        }

        /* stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--color-bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(124, 58, 237, 0.25);
            transform: translateY(-2px);
        }
        .stat-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .label {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 1.8rem;
            }
        }

        /* faq */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 0;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.2);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--color-text);
            user-select: none;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--color-primary-light);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* cta */
        .cta-section {
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(245, 158, 11, 0.06));
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(124, 58, 237, 0.08), transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 28px;
            position: relative;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(124, 58, 237, 0.5);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary-light);
            background: rgba(124, 58, 237, 0.08);
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            position: relative;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* guide tips */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tip-card {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .tip-card:hover {
            border-color: rgba(124, 58, 237, 0.25);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }
        .tip-card .icon {
            font-size: 2.2rem;
            margin-bottom: 16px;
            color: var(--color-primary-light);
        }
        .tip-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .tip-card p {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* divider */
        .divider {
            height: 1px;
            background: var(--color-border);
            margin: 0;
            border: none;
        }

        /* sticky sidebar模拟 */
        @media (min-width: 1024px) {
            .content-layout {
                display: grid;
                grid-template-columns: 1fr 320px;
                gap: 40px;
                align-items: start;
            }
            .sidebar {
                position: sticky;
                top: 100px;
            }
        }
        .sidebar-card {
            background: var(--color-bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--color-border);
            padding: 24px;
            margin-bottom: 20px;
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .sidebar-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-card ul li a {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            transition: var(--transition);
        }
        .sidebar-card ul li a:hover {
            color: var(--color-primary-light);
            padding-left: 4px;
        }
        .sidebar-card ul li a i {
            color: var(--color-primary-light);
            font-size: 0.7rem;
        }

/* roulang page: article */
:root {
            --color-primary: #0f0e17;
            --color-secondary: #1a1a2e;
            --color-accent: #ff6b6b;
            --color-accent-glow: #ff8e8e;
            --color-surface-dark: #16213e;
            --color-surface-mid: #1e2a4a;
            --color-text-main: #fffffe;
            --color-text-muted: #a7a9be;
            --color-text-dim: #6c6e82;
            --color-border-dark: #2a2a4a;
            --color-border-accent: rgba(255, 107, 107, 0.27);
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.3);
            --shadow-neon: 0 0 20px rgba(255, 107, 107, 0.15);
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--color-primary);
            color: var(--color-text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }

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

        /* ===== HEADER / NAV ===== */
        header {
            background: rgba(15, 14, 23, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(42, 42, 74, 0.6);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: background 0.3s;
        }

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

        .logo {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            font-size: 1.4rem;
            font-weight: 700;
            background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            -webkit-text-fill-color: initial;
            color: var(--color-accent);
            font-size: 1.2rem;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-list li a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all 0.25s ease;
            position: relative;
        }

        .nav-list li a:hover {
            color: var(--color-text-main);
            background: rgba(255, 107, 107, 0.06);
        }

        .nav-list li a.active {
            color: var(--color-accent);
            background: rgba(255, 107, 107, 0.1);
            box-shadow: inset 0 0 0 1px rgba(255, 107, 107, 0.15);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border-dark);
            color: var(--color-text-muted);
            font-size: 1.3rem;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.2s;
        }

        .mobile-toggle:hover {
            color: var(--color-text-main);
            border-color: var(--color-accent);
        }

        /* ===== ARTICLE BANNER ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f0e17 0%, #1a1a2e 50%, #16213e 100%);
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

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

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--color-text-dim);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--color-text-muted);
            transition: color 0.2s;
        }

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

        .article-breadcrumb .sep {
            color: var(--color-border-dark);
        }

        .article-category-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(255, 107, 107, 0.15);
            color: var(--color-accent);
            border: 1px solid rgba(255, 107, 107, 0.2);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .article-title {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.2;
            max-width: 900px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fffffe 70%, #ff6b6b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }

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

        .article-meta i {
            color: var(--color-accent);
            font-size: 0.85rem;
        }

        /* ===== ARTICLE CONTENT ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--color-primary);
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        .article-body {
            background: var(--color-surface-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            border: 1px solid var(--color-border-dark);
            box-shadow: var(--shadow-card);
        }

        .article-body .content {
            font-size: 1.05rem;
            color: var(--color-text-main);
            line-height: 1.9;
        }

        .article-body .content p {
            margin-bottom: 1.6em;
        }

        .article-body .content h2,
        .article-body .content h3,
        .article-body .content h4 {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            margin-top: 2em;
            margin-bottom: 0.8em;
            font-weight: 600;
            color: var(--color-text-main);
        }

        .article-body .content h2 {
            font-size: 1.6rem;
            border-left: 4px solid var(--color-accent);
            padding-left: 16px;
        }

        .article-body .content h3 {
            font-size: 1.25rem;
        }

        .article-body .content ul,
        .article-body .content ol {
            margin-bottom: 1.6em;
            padding-left: 24px;
        }

        .article-body .content li {
            margin-bottom: 0.5em;
        }

        .article-body .content a {
            color: var(--color-accent);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1px;
            transition: color 0.2s;
        }

        .article-body .content a:hover {
            color: var(--color-accent-glow);
        }

        .article-body .content blockquote {
            border-left: 4px solid var(--color-accent);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: rgba(255, 107, 107, 0.04);
            border-radius: 0 8px 8px 0;
            color: var(--color-text-muted);
            font-style: italic;
        }

        .article-body .content img {
            border-radius: var(--radius);
            margin: 1.6em 0;
            box-shadow: var(--shadow-card);
        }

        .article-body .content code {
            background: rgba(255, 255, 255, 0.05);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--color-accent);
        }

        .article-body .content pre {
            background: rgba(0, 0, 0, 0.3);
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            border: 1px solid var(--color-border-dark);
            margin: 1.6em 0;
        }

        .article-body .content pre code {
            background: transparent;
            padding: 0;
            color: var(--color-text-muted);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border-dark);
        }

        .article-tags .tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.04);
            color: var(--color-text-muted);
            border: 1px solid var(--color-border-dark);
            transition: all 0.2s;
        }

        .article-tags .tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(255, 107, 107, 0.06);
        }

        .article-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--color-border-dark);
            gap: 20px;
            flex-wrap: wrap;
        }

        .article-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--color-border-dark);
            color: var(--color-text-muted);
            font-size: 0.9rem;
            transition: all 0.25s;
            max-width: 45%;
        }

        .article-nav a:hover {
            border-color: var(--color-accent);
            color: var(--color-text-main);
            background: rgba(255, 107, 107, 0.05);
            transform: translateY(-2px);
        }

        .article-nav a .dir {
            font-size: 0.75rem;
            color: var(--color-text-dim);
            display: block;
        }

        .article-nav a .nav-title {
            font-weight: 500;
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 200px;
        }

        /* ===== SIDEBAR ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--color-surface-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border-dark);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-main);
        }

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

        .sidebar-related-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-related-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 12px;
            border-radius: 8px;
            transition: all 0.2s;
            margin: 0 -12px;
        }

        .sidebar-related-list li a:hover {
            background: rgba(255, 107, 107, 0.04);
        }

        .sidebar-related-list li a .rel-img {
            width: 60px;
            height: 60px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-surface-mid);
        }

        .sidebar-related-list li a .rel-info .rel-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }

        .sidebar-related-list li a .rel-info .rel-date {
            font-size: 0.75rem;
            color: var(--color-text-dim);
            margin-top: 4px;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(255, 107, 107, 0.08), rgba(255, 107, 107, 0.02));
            border: 1px solid rgba(255, 107, 107, 0.15);
            text-align: center;
        }

        .sidebar-cta h3 i {
            color: var(--color-accent);
        }

        .sidebar-cta p {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            background: linear-gradient(135deg, #ff6b6b, #e05555);
            color: #fff;
            border: none;
            box-shadow: 0 4px 20px rgba(255, 107, 107, 0.25);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(255, 107, 107, 0.35);
            background: linear-gradient(135deg, #ff7a7a, #e86060);
        }

        .btn-outline {
            display: inline-block;
            padding: 10px 24px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.9rem;
            background: transparent;
            color: var(--color-accent);
            border: 1px solid rgba(255, 107, 107, 0.3);
            transition: all 0.25s;
        }

        .btn-outline:hover {
            background: rgba(255, 107, 107, 0.06);
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }

        /* ===== RELATED SECTION ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--color-secondary);
            border-top: 1px solid var(--color-border-dark);
        }

        .related-section .section-title {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .related-section .section-sub {
            color: var(--color-text-muted);
            margin-bottom: 40px;
            font-size: 1rem;
        }

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

        .related-card {
            background: var(--color-surface-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-dark);
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 107, 107, 0.2);
            box-shadow: var(--shadow-neon), var(--shadow-card);
        }

        .related-card .rc-img {
            height: 180px;
            background: var(--color-surface-mid);
            position: relative;
            overflow: hidden;
        }

        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .related-card .rc-body {
            padding: 20px 22px 24px;
        }

        .related-card .rc-body .rc-cat {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: var(--color-accent);
            margin-bottom: 8px;
        }

        .related-card .rc-body .rc-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .rc-body .rc-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .related-card .rc-body .rc-meta {
            font-size: 0.78rem;
            color: var(--color-text-dim);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== FOOTER ===== */
        footer {
            background: #0a0a12;
            border-top: 1px solid var(--color-border-dark);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-grid h4 {
            font-family: 'Space Grotesk', 'Inter', sans-serif;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--color-text-main);
        }

        .footer-grid p {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 6px;
        }

        .footer-grid a {
            color: var(--color-text-muted);
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 24px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--color-text-dim);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

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

            .article-title {
                font-size: 2rem;
            }
        }

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

            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 14, 23, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--color-border-dark);
                gap: 4px;
            }

            .nav-list.open {
                display: flex;
            }

            .nav-list li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }

            .mobile-toggle {
                display: block;
            }

            .article-banner {
                padding: 48px 0 40px;
            }

            .article-title {
                font-size: 1.6rem;
            }

            .article-body {
                padding: 28px 20px;
            }

            .article-body .content {
                font-size: 0.98rem;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .article-nav a {
                max-width: 100%;
            }

            .article-meta {
                gap: 14px;
                font-size: 0.82rem;
            }
        }

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

            .article-title {
                font-size: 1.3rem;
            }

            .article-body {
                padding: 20px 16px;
                border-radius: var(--radius);
            }

            .related-card .rc-body {
                padding: 16px 18px 20px;
            }

            .sidebar-card {
                padding: 20px 16px;
            }

            .article-breadcrumb {
                font-size: 0.75rem;
            }
        }

        /* ===== NOT FOUND ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-box i {
            font-size: 4rem;
            color: var(--color-text-dim);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.8rem;
            margin-bottom: 16px;
            color: var(--color-text-main);
        }

        .not-found-box p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
        }

/* roulang page: category2 */
:root {
            --color-primary: #00d4ff;
            --color-primary-dark: #00b0d4;
            --color-accent: #ff6a00;
            --color-accent-dark: #e05d00;
            --color-bg: #0a0e17;
            --color-card: #111827;
            --color-border: #1e293b;
            --color-text: #f1f5f9;
            --color-text-muted: #94a3b8;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        header {
            background: rgba(10, 14, 23, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
            align-items: center;
        }

        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition);
            position: relative;
        }

        .nav-list li a:hover {
            color: var(--color-text);
            background: rgba(0, 212, 255, 0.08);
        }

        .nav-list li a.active {
            color: var(--color-primary);
            background: rgba(0, 212, 255, 0.12);
            box-shadow: inset 0 -2px 0 var(--color-primary);
        }

        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            color: var(--color-text);
            font-size: 1.4rem;
            padding: 6px 12px;
            border-radius: var(--radius);
            cursor: pointer;
            transition: all var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(0, 212, 255, 0.1);
            border-color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(10, 14, 23, 0.98);
                backdrop-filter: blur(12px);
                border-bottom: 1px solid var(--color-border);
                padding: 12px 24px 20px;
                gap: 2px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: 8px;
            }
            .nav-list li a.active::after {
                display: none;
            }
            .header-inner {
                height: 60px;
            }
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0a0e17 0%, #0f1a2e 50%, #0a0e17 100%);
            overflow: hidden;
            text-align: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.2;
            pointer-events: none;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin: 0 0 16px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
        }

        .page-banner p {
            font-size: 1.15rem;
            color: var(--color-text-muted);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb a {
            color: var(--color-primary);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .page-banner .breadcrumb span {
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 40px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 70px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            background: linear-gradient(135deg, var(--color-primary), #60f0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-title p {
            color: var(--color-text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-subtitle {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
            border: 1px solid rgba(255, 106, 0, 0.3);
            padding: 4px 16px;
            border-radius: 20px;
            background: rgba(255, 106, 0, 0.08);
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 1.6rem;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
        }

        .card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: 0 12px 40px rgba(0, 212, 255, 0.12);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--color-border);
        }

        .card-body {
            padding: 24px 20px 20px;
        }

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }

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

        .card-body p {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .card-meta i {
            margin-right: 4px;
        }

        .tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(0, 212, 255, 0.12);
            color: var(--color-primary);
            border: 1px solid rgba(0, 212, 255, 0.2);
            transition: all var(--transition);
        }
        .tag:hover {
            background: rgba(0, 212, 255, 0.2);
            color: var(--color-primary);
        }
        .tag-accent {
            background: rgba(255, 106, 0, 0.12);
            color: var(--color-accent);
            border-color: rgba(255, 106, 0, 0.2);
        }
        .tag-accent:hover {
            background: rgba(255, 106, 0, 0.2);
            color: var(--color-accent);
        }

        .badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 12px;
            background: var(--color-primary);
            color: #0a0e17;
            letter-spacing: 0.5px;
        }
        .badge-accent {
            background: var(--color-accent);
        }

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

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

        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), transparent);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding: 20px 24px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .timeline-item:hover {
            border-color: rgba(0, 212, 255, 0.25);
            box-shadow: 0 4px 24px rgba(0, 212, 255, 0.08);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 28px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 2px solid var(--color-bg);
            box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2);
        }

        .timeline-item .t-date {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            display: block;
            margin-bottom: 6px;
        }

        .timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 6px;
        }

        .timeline-item p {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .timeline {
                padding-left: 32px;
            }
            .timeline-item {
                padding: 16px 18px;
            }
            .timeline-item::before {
                left: -24px;
                width: 10px;
                height: 10px;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px 16px;
            transition: all var(--transition);
        }

        .stat-card:hover {
            border-color: rgba(0, 212, 255, 0.25);
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(0, 212, 255, 0.08);
        }

        .stat-card .num {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-card .label {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin-top: 8px;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 24px 12px;
            }
            .stat-card .num {
                font-size: 2rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            color: var(--color-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
        }

        .faq-question:hover {
            background: rgba(0, 212, 255, 0.04);
        }

        .faq-question i {
            color: var(--color-primary);
            font-size: 1.1rem;
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }

        .faq-answer.open {
            display: block;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(255, 106, 0, 0.06));
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            text-align: center;
            padding: 70px 0;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 16px;
        }

        .cta-section p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .btn {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            letter-spacing: 0.5px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            color: #0a0e17;
            box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4);
            color: #0a0e17;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.3);
        }

        .btn-accent:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 32px rgba(255, 106, 0, 0.4);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #0a0e17;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        footer {
            background: #080b12;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        footer p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin: 0 0 8px;
            line-height: 1.7;
        }

        footer a {
            color: var(--color-text-muted);
        }
        footer a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            footer {
                padding: 36px 0 24px;
            }
        }

        /* ===== Version highlights ===== */
        .version-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 20px;
            padding: 4px 16px 4px 12px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
        }

        .version-badge i {
            font-size: 0.8rem;
        }

        /* ===== 特色列表 ===== */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 18px 20px;
            transition: all var(--transition);
        }

        .feature-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
            transform: translateX(4px);
        }

        .feature-item .icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(0, 212, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1rem;
        }

        .feature-item .text {
            flex: 1;
        }

        .feature-item .text h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 4px;
        }

        .feature-item .text p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin: 0;
        }

        @media (max-width: 768px) {
            .feature-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 图片遮罩 ===== */
        .img-overlay {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
        }

        .img-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 14, 23, 0.7) 0%, transparent 50%);
            pointer-events: none;
        }

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

        .img-overlay:hover img {
            transform: scale(1.05);
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-muted);
        }

        /* ===== 额外的Tailwind覆盖 ===== */
        .text-primary {
            color: var(--color-primary) !important;
        }
        .text-accent {
            color: var(--color-accent) !important;
        }
        .bg-dark-card {
            background: var(--color-card) !important;
        }
        .border-dark-border {
            border-color: var(--color-border) !important;
        }

/* roulang page: category3 */
:root {
            --color-primary: #6C3CE1;
            --color-primary-light: #8B5CF6;
            --color-primary-dark: #5B2CC0;
            --color-accent: #FF6B9D;
            --color-accent-light: #FF8DB5;
            --color-bg: #0F0A1E;
            --color-card: #1A1230;
            --color-surface: #241B3D;
            --color-border: #3A2D5C;
            --color-text: #F1EFF7;
            --color-text-muted: #9CA3AF;
            --color-light: #F9F7FC;
            --radius: 0.875rem;
            --radius-lg: 1.125rem;
            --radius-xl: 1.375rem;
            --shadow-soft: 0 4px 20px rgba(108, 60, 225, 0.10);
            --shadow-card: 0 8px 32px rgba(15, 10, 30, 0.12);
            --shadow-glow: 0 0 30px rgba(108, 60, 225, 0.15), 0 8px 32px rgba(108, 60, 225, 0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

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

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

        /* ===== Header & Nav ===== */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 10, 30, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(58, 45, 92, 0.4);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

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

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            background: linear-gradient(135deg, #8B5CF6 0%, #FF6B9D 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            -webkit-text-fill-color: initial;
            color: var(--color-accent);
            font-size: 1.4rem;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
        }
        .nav-list li a {
            display: flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius);
            font-size: 0.925rem;
            font-weight: 500;
            color: rgba(241, 239, 247, 0.75);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-list li a:hover {
            color: #fff;
            background: rgba(108, 60, 225, 0.15);
        }
        .nav-list li a.active {
            color: #fff;
            background: rgba(108, 60, 225, 0.25);
            box-shadow: 0 0 20px rgba(108, 60, 225, 0.08);
        }
        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--color-accent);
            box-shadow: 0 0 12px rgba(255, 107, 157, 0.5);
        }

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 6px 10px;
            border-radius: 8px;
            cursor: pointer;
            background: rgba(108, 60, 225, 0.1);
            border: 1px solid rgba(58, 45, 92, 0.3);
        }
        .mobile-toggle:hover {
            background: rgba(108, 60, 225, 0.2);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            box-shadow: 0 4px 24px rgba(108, 60, 225, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 36px rgba(108, 60, 225, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(108, 60, 225, 0.2);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            color: #fff;
            box-shadow: 0 4px 24px rgba(255, 107, 157, 0.25);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 36px rgba(255, 107, 157, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text);
            border: 1.5px solid rgba(58, 45, 92, 0.6);
        }
        .btn-outline:hover {
            border-color: var(--color-primary-light);
            background: rgba(108, 60, 225, 0.08);
            transform: translateY(-1px);
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(108, 60, 225, 0.15);
            color: var(--color-primary-light);
            border: 1px solid rgba(108, 60, 225, 0.2);
        }
        .badge-accent {
            background: rgba(255, 107, 157, 0.12);
            color: var(--color-accent-light);
            border-color: rgba(255, 107, 157, 0.2);
        }
        .badge-green {
            background: rgba(52, 211, 153, 0.12);
            color: #6EE7B7;
            border-color: rgba(52, 211, 153, 0.2);
        }
        .badge-gold {
            background: rgba(251, 191, 36, 0.12);
            color: #FCD34D;
            border-color: rgba(251, 191, 36, 0.2);
        }

        /* ===== Cards ===== */
        .card {
            background: var(--color-card);
            border: 1px solid rgba(58, 45, 92, 0.3);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(108, 60, 225, 0.3);
            box-shadow: var(--shadow-glow);
        }
        .card-cover {
            overflow: hidden;
            border-radius: var(--radius-lg);
            position: relative;
        }
        .card-cover img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card-cover:hover img {
            transform: scale(1.05);
        }
        .card-cover .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(transparent, rgba(15, 10, 30, 0.85));
            color: #fff;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--color-card);
        }
        .section-gradient {
            background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-card) 100%);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 600px;
            line-height: 1.7;
        }

        /* ===== Hero (Inner Banner) ===== */
        .hero-inner {
            position: relative;
            padding: 100px 0 80px;
            text-align: center;
            overflow: hidden;
        }
        .hero-inner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-inner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 80%, rgba(108, 60, 225, 0.15) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-inner>* {
            position: relative;
            z-index: 2;
        }

        /* ===== Stats ===== */
        .stat-item {
            text-align: center;
            padding: 20px 16px;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, #8B5CF6, #FF6B9D);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ===== Post / Thread ===== */
        .thread-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(58, 45, 92, 0.2);
        }
        .thread-item:last-child {
            border-bottom: none;
        }
        .thread-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            flex-shrink: 0;
        }
        .thread-content {
            flex: 1;
            min-width: 0;
        }
        .thread-title {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: hidden;
            overflow: hidden;
        }
        .thread-title:hover {
            color: var(--color-primary-light);
        }
        .thread-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .thread-meta i {
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid rgba(58, 45, 92, 0.2);
            padding: 20px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            padding: 4px 0;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--color-primary-light);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--color-text-muted);
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding-top: 12px;
            color: var(--color-text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(108, 60, 225, 0.12) 0%, rgba(255, 107, 157, 0.08) 100%);
            border: 1px solid rgba(58, 45, 92, 0.3);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(108, 60, 225, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        footer {
            background: rgba(15, 10, 30, 0.95);
            border-top: 1px solid rgba(58, 45, 92, 0.25);
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-grid h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-grid h4 i {
            color: var(--color-accent);
        }
        .footer-grid p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            line-height: 1.7;
        }
        .footer-grid a {
            color: var(--color-text-muted);
            transition: var(--transition);
        }
        .footer-grid a:hover {
            color: var(--color-primary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(58, 45, 92, 0.2);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .section-title {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 10, 30, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid rgba(58, 45, 92, 0.3);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: 10px;
            }
            .nav-list li a.active::after {
                display: none;
            }
            .nav-list li a.active {
                background: rgba(108, 60, 225, 0.2);
            }

            .hero-inner {
                padding: 72px 0 56px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .hero-inner {
                padding: 56px 0 40px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .btn {
                padding: 10px 24px;
                font-size: 0.85rem;
            }
            .thread-avatar {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }
            .thread-title {
                font-size: 0.9rem;
            }
            .stat-number {
                font-size: 1.9rem;
            }
            .card {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 32px 18px;
            }
        }

        /* Grid helpers */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .grid-3 {
                grid-template-columns: 1fr 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .grid-3 {
                grid-template-columns: 1fr;
            }
        }

        /* Glow line */
        .glow-line {
            width: 60px;
            height: 4px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            margin: 16px 0 24px;
            box-shadow: 0 0 20px rgba(108, 60, 225, 0.2);
        }
        .glow-line.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* Avatar group */
        .avatar-group {
            display: flex;
            align-items: center;
        }
        .avatar-group .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--color-bg);
            margin-left: -10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 600;
            color: #fff;
        }
        .avatar-group .avatar:first-child {
            margin-left: 0;
        }
        .avatar-group .avatar-more {
            background: var(--color-surface);
            border: 2px solid var(--color-bg);
            color: var(--color-text-muted);
            font-size: 0.75rem;
        }

        /* Smooth fade-in */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease forwards;
        }
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-d1 {
            animation-delay: 0.1s;
        }
        .fade-in-d2 {
            animation-delay: 0.2s;
        }
        .fade-in-d3 {
            animation-delay: 0.3s;
        }
        .fade-in-d4 {
            animation-delay: 0.4s;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 6px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-primary-dark);
        }

        /* Focus visible */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }