/* roulang page: index */
:root {
    --color-primary: #8B5E3C;
    --color-primary-dark: #5D4037;
    --color-primary-deep: #3E2723;
    --color-secondary: #D4A574;
    --color-accent: #C8A87C;
    --color-bg: #FBF7F2;
    --color-bg-alt: #F0E8DF;
    --color-white: #FFFFFF;
    --color-text: #2B1D16;
    --color-text-light: #7A6A5E;
    --color-border: #E5D9CC;
    --color-dark-bg: #2B1D16;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(43,29,22,0.06);
    --shadow-md: 0 8px 24px rgba(43,29,22,0.08);
    --shadow-lg: 0 16px 48px rgba(43,29,22,0.12);
    --shadow-hover: 0 20px 40px rgba(43,29,22,0.16);
    --transition: all 0.3s ease;
    --gradient-brand: linear-gradient(135deg, #8B5E3C 0%, #6D4C41 50%, #4E342E 100%);
    --gradient-accent: linear-gradient(135deg, #D4A574 0%, #C8A87C 100%);
    --gradient-soft: linear-gradient(135deg, #FBF7F2 0%, #F0E8DF 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;line-height:1.7;color:var(--color-text);background:var(--color-bg);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
p{margin-bottom:0.5rem}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
section{padding:72px 0}
.section-header{text-align:center;max-width:640px;margin:0 auto 48px}
.section-badge{
    display:inline-block;background:var(--gradient-accent);color:var(--color-primary-deep);
    font-size:13px;font-weight:600;padding:6px 18px;border-radius:30px;letter-spacing:1px;
    margin-bottom:12px;box-shadow:var(--shadow-sm);
}
.section-header h2{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:700;color:var(--color-text);letter-spacing:-0.5px}
.section-header p{color:var(--color-text-light);font-size:1rem;margin-top:8px}

/* Left Sidebar Nav */
.site-wrapper{min-height:100vh}
.sidebar-nav{
    position:fixed;left:0;top:0;bottom:0;width:260px;background:var(--gradient-brand);
    z-index:1000;display:flex;flex-direction:column;padding:32px 24px;box-shadow:4px 0 30px rgba(0,0,0,0.15);
}
.sidebar-logo{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,0.15)}
.logo-mark{width:52px;height:52px;background:var(--gradient-accent);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 6px 16px rgba(0,0,0,0.18)}
.logo-text{font-size:17px;font-weight:700;color:var(--color-white);line-height:1.4;letter-spacing:0.5px}
.logo-sub{font-size:12px;color:rgba(255,255,255,0.7);margin-top:4px}
.sidebar-menu{flex:1;padding:28px 0;display:flex;flex-direction:column;gap:6px}
.menu-item{
    display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:12px;
    color:rgba(255,255,255,0.8);font-size:15px;font-weight:500;transition:var(--transition);
}
.menu-item i{width:20px;text-align:center;font-size:16px}
.menu-item:hover{background:rgba(255,255,255,0.12);color:var(--color-white);transform:translateX(4px)}
.menu-item.active{background:rgba(255,255,255,0.2);color:var(--color-white);font-weight:600;box-shadow:0 4px 12px rgba(0,0,0,0.1)}
.sidebar-footer{padding-top:24px;border-top:1px solid rgba(255,255,255,0.15)}
.sidebar-tag{font-size:13px;color:rgba(255,255,255,0.75);margin-bottom:16px;line-height:1.5}
.sidebar-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
    background:var(--gradient-accent);color:var(--color-primary-deep);font-weight:600;font-size:15px;
    padding:12px 18px;border-radius:12px;transition:var(--transition);box-shadow:0 4px 16px rgba(0,0,0,0.15);
}
.sidebar-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.25);color:var(--color-primary-deep)}

/* Mobile Header */
.mobile-header{display:none;position:sticky;top:0;z-index:1001;background:var(--gradient-brand);padding:0 20px;box-shadow:0 4px 20px rgba(0,0,0,0.15)}
.mobile-header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.mobile-logo{color:var(--color-white);font-size:16px;font-weight:700;line-height:1.3;max-width:240px}
.menu-toggle{color:var(--color-white);font-size:20px;padding:10px;border-radius:8px;transition:var(--transition)}
.menu-toggle:hover{background:rgba(255,255,255,0.15)}
.mobile-menu{display:none;padding:12px 0 16px;flex-direction:column;gap:4px}
.mobile-menu.is-open{display:flex}
.mobile-menu-item{padding:12px 14px;border-radius:10px;color:rgba(255,255,255,0.85);font-size:15px;transition:var(--transition)}
.mobile-menu-item:hover{background:rgba(255,255,255,0.12);color:var(--color-white)}
.mobile-menu-item.active{background:rgba(255,255,255,0.2);color:var(--color-white);font-weight:600}

/* Main content */
.main-content{margin-left:260px;min-height:100vh}
footer{margin-left:260px}

/* Typography helper */
.h1,.h2,.h3{font-weight:700;color:var(--color-text)}

/* Hero Section */
.hero-section{
    position:relative;background:url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
    padding:120px 0;overflow:hidden;
}
.hero-section::before{
    content:'';position:absolute;inset:0;
    background:linear-gradient(135deg,rgba(43,29,22,0.88) 0%,rgba(62,39,35,0.75) 50%,rgba(91,62,60,0.55) 100%);
}
.hero-content{position:relative;z-index:2;max-width:680px}
.hero-badge{
    display:inline-block;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);
    color:var(--color-secondary);font-size:14px;font-weight:500;padding:8px 20px;border-radius:30px;
    border:1px solid rgba(255,255,255,0.2);margin-bottom:24px;letter-spacing:0.5px;
}
.hero-section h1{
    font-size:clamp(1.8rem,4vw,3rem);font-weight:800;color:var(--color-white);
    line-height:1.3;margin-bottom:20px;letter-spacing:-1px;text-shadow:0 2px 20px rgba(0,0,0,0.2);
}
.hero-section .hero-desc{font-size:clamp(0.95rem,1.5vw,1.1rem);color:rgba(255,255,255,0.9);line-height:1.8;margin-bottom:28px;max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-btn-primary{
    background:var(--gradient-accent);color:var(--color-primary-deep);font-weight:600;font-size:15px;
    padding:13px 28px;border-radius:12px;display:inline-flex;align-items:center;gap:8px;
    box-shadow:0 6px 20px rgba(212,165,116,0.4);transition:var(--transition);
}
.hero-btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(212,165,116,0.5)}
.hero-btn-secondary{
    background:rgba(255,255,255,0.12);backdrop-filter:blur(6px);color:var(--color-white);
    border:1px solid rgba(255,255,255,0.25);font-size:15px;font-weight:500;padding:13px 28px;border-radius:12px;
    display:inline-flex;align-items:center;gap:8px;transition:var(--transition);
}
.hero-btn-secondary:hover{background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.4)}
.hero-countdown{
    background:rgba(0,0,0,0.35);backdrop-filter:blur(10px);border-radius:16px;border:1px solid rgba(255,255,255,0.15);
    padding:16px 20px;display:inline-flex;align-items:center;gap:20px;flex-wrap:wrap;
}
.countdown-label{color:rgba(255,255,255,0.8);font-size:14px;font-weight:500}
.countdown-timer{display:flex;gap:8px}
.countdown-item{
    background:rgba(255,255,255,0.15);border-radius:10px;padding:6px 12px;text-align:center;min-width:52px;
}
.countdown-item strong{display:block;font-size:20px;font-weight:700;color:var(--color-white);line-height:1.2}
.countdown-item em{display:block;font-size:11px;color:rgba(255,255,255,0.7);font-style:normal;margin-top:2px}

/* Category Section */
.category-section{background:var(--color-bg)}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.category-card{
    background:var(--color-white);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;
    box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:var(--transition);
    position:relative;overflow:hidden;
}
.category-card::after{
    content:'';position:absolute;bottom:0;left:0;right:0;height:4px;
    background:var(--gradient-accent);opacity:0;transition:var(--transition);
}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.category-card:hover::after{opacity:1}
.category-icon{
    width:64px;height:64px;background:var(--gradient-soft);border-radius:18px;
    display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
    font-size:26px;color:var(--color-primary);transition:var(--transition);
}
.category-card:hover .category-icon{background:var(--gradient-brand);color:var(--color-white);transform:scale(1.05)}
.category-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.category-card p{font-size:13px;color:var(--color-text-light);line-height:1.6}
.category-link{display:inline-block;margin-top:12px;font-size:13px;font-weight:600;color:var(--color-primary)}
.category-link i{font-size:12px;margin-left:4px;transition:var(--transition)}
.category-card:hover .category-link i{transform:translateX(4px)}

/* Advantage Section (mini features) */
.advantage-section{background:var(--color-bg-alt)}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.adv-card{
    background:var(--color-white);border-radius:var(--radius-lg);padding:32px 28px;
    box-shadow:var(--shadow-sm);border:1px solid var(--color-border);position:relative;transition:var(--transition);
}
.adv-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.adv-num{
    font-size:44px;font-weight:800;color:transparent;background:var(--gradient-accent);
    -webkit-background-clip:text;background-clip:text;line-height:1;margin-bottom:16px;
    font-family:"Georgia","Noto Serif SC",serif;opacity:0.6;
}
.adv-card h3{font-size:18px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.adv-card h3 i{color:var(--color-secondary);font-size:18px}
.adv-card p{font-size:14px;color:var(--color-text-light);line-height:1.7}
.adv-tag{
    display:inline-block;background:var(--gradient-soft);color:var(--color-primary);
    font-size:12px;font-weight:500;padding:4px 12px;border-radius:20px;margin-top:12px;
}

/* Stats Section */
.stats-section{
    position:relative;background:url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
    padding:90px 0;
}
.stats-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(43,29,22,0.92),rgba(62,39,35,0.85))}
.stats-section .container{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-card{
    background:rgba(255,255,255,0.1);backdrop-filter:blur(10px);border-radius:var(--radius-lg);
    padding:36px 20px;border:1px solid rgba(255,255,255,0.15);transition:var(--transition);
}
.stat-card:hover{background:rgba(255,255,255,0.16);transform:translateY(-4px)}
.stat-number{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;color:var(--color-secondary);display:block;line-height:1.2}
.stat-label{font-size:14px;color:rgba(255,255,255,0.85);display:block;margin-top:6px;letter-spacing:0.5px}
.stat-desc{font-size:12px;color:rgba(255,255,255,0.6);margin-top:4px;display:block}

/* Resources Section */
.resources-section{background:var(--color-bg)}
.resources-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.resource-list{display:flex;flex-direction:column;gap:12px}
.resource-item{
    background:var(--color-white);border-radius:var(--radius-md);padding:18px 22px;
    border:1px solid var(--color-border);box-shadow:var(--shadow-sm);transition:var(--transition);
    display:flex;align-items:center;gap:14px;
}
.resource-item:hover{box-shadow:var(--shadow-md);border-color:var(--color-secondary);transform:translateX(4px)}
.resource-icon{
    flex-shrink:0;width:40px;height:40px;background:var(--gradient-soft);border-radius:10px;
    display:flex;align-items:center;justify-content:center;color:var(--color-primary);font-size:16px;
}
.resource-item h3{font-size:15px;font-weight:600;color:var(--color-text);line-height:1.4;flex:1}
.resource-meta{font-size:13px;color:var(--color-text-light);white-space:nowrap}
.resource-sidebar{display:flex;flex-direction:column;gap:20px}
.sidebar-panel{
    background:var(--color-white);border-radius:var(--radius-lg);padding:24px;
    box-shadow:var(--shadow-sm);border:1px solid var(--color-border);
}
.sidebar-panel h3{font-size:16px;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--color-bg-alt);display:flex;align-items:center;gap:8px}
.sidebar-panel h3 i{color:var(--color-secondary)}
.hot-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.hot-list li a{font-size:14px;color:var(--color-text);display:flex;gap:8px;transition:var(--transition)}
.hot-list li a:hover{color:var(--color-primary)}
.hot-list li a::before{content:'▸';color:var(--color-secondary);flex-shrink:0}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
    background:var(--color-bg-alt);color:var(--color-text-light);font-size:13px;
    padding:5px 14px;border-radius:20px;transition:var(--transition);cursor:pointer;
}
.tag:hover{background:var(--color-primary);color:var(--color-white)}

/* Scenario Section */
.scenario-section{background:var(--color-bg-alt)}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.scenario-card{
    background:var(--color-white);border-radius:var(--radius-lg);overflow:hidden;
    box-shadow:var(--shadow-sm);border:1px solid var(--color-border);transition:var(--transition);
}
.scenario-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px)}
.scenario-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.scenario-body{padding:24px}
.scenario-body h3{font-size:17px;font-weight:700;margin-bottom:8px}
.scenario-body p{font-size:14px;color:var(--color-text-light);line-height:1.7}
.scenario-step{
    background:var(--gradient-brand);color:var(--color-white);padding:32px 24px;border-radius:var(--radius-lg);
    display:flex;flex-direction:column;justify-content:center;text-align:center;height:100%;
    box-shadow:var(--shadow-md);
}
.scenario-step-icon{
    width:60px;height:60px;background:rgba(255,255,255,0.15);border-radius:50%;
    display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:24px;
}
.scenario-step h3{font-size:17px;font-weight:700;margin-bottom:10px}
.scenario-step p{font-size:13px;line-height:1.6;color:rgba(255,255,255,0.85)}

/* News Section */
.news-section{background:var(--color-bg)}
.news-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:0;border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;background:var(--color-white);box-shadow:var(--shadow-sm)}
.news-item{display:flex;align-items:center;gap:16px;padding:18px 24px;border-bottom:1px solid var(--color-bg-alt);transition:var(--transition)}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:var(--color-bg);padding-left:28px}
.news-date{flex-shrink:0;background:var(--color-bg-alt);border-radius:8px;padding:6px 12px;font-size:13px;color:var(--color-text-light);font-weight:500;text-align:center}
.news-date strong{display:block;font-size:16px;color:var(--color-primary);line-height:1}
.news-item h3{font-size:15px;font-weight:500;flex:1;line-height:1.5}
.news-item h3:hover{color:var(--color-primary)}
.news-category{
    flex-shrink:0;background:var(--gradient-soft);color:var(--color-primary);font-size:12px;
    padding:4px 12px;border-radius:20px;font-weight:500;
}

/* Testimonials Section */
.testimonials-section{background:var(--color-bg-alt);position:relative}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.testimonial-card{
    background:var(--color-white);border-radius:var(--radius-lg);padding:30px;
    box-shadow:var(--shadow-sm);border:1px solid var(--color-border);position:relative;transition:var(--transition);
}
.testimonial-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.testimonial-stars{color:#E8A33C;font-size:14px;margin-bottom:14px;letter-spacing:2px}
.testimonial-text{font-size:14px;color:var(--color-text);line-height:1.9;font-style:italic;margin-bottom:20px}
.testimonial-author{display:flex;align-items:center;gap:12px;border-top:1px solid var(--color-bg-alt);padding-top:16px}
.testimonial-avatar{
    width:42px;height:42px;border-radius:50%;background:var(--gradient-accent);
    display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--color-primary-deep);font-weight:700;
}
.testimonial-author strong{font-size:14px;display:block;line-height:1.3}
.testimonial-author span{font-size:12px;color:var(--color-text-light)}

/* FAQ Section */
.faq-section{background:var(--color-bg)}
.faq-wrapper{max-width:780px;margin:0 auto}
.accordion-item{
    background:var(--color-white);border-radius:var(--radius-md);margin-bottom:16px;
    border:1px solid var(--color-border);box-shadow:var(--shadow-sm);overflow:hidden;
}
.accordion-item.is-active{border-color:var(--color-secondary);box-shadow:var(--shadow-md)}
.accordion-title{
    display:flex;justify-content:space-between;align-items:center;padding:20px 24px;
    font-size:15px;font-weight:600;color:var(--color-text);cursor:pointer;transition:var(--transition);
}
.accordion-title:hover{color:var(--color-primary)}
.accordion-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--color-bg-alt);display:flex;align-items:center;justify-content:center;font-size:14px;transition:var(--transition)}
.accordion-item.is-active .accordion-icon{background:var(--color-primary);color:var(--color-white);transform:rotate(45deg)}
.accordion-content{padding:0 24px 20px;font-size:14px;color:var(--color-text-light);line-height:1.8}

/* CTA Section */
.cta-section{
    position:relative;background:url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
    padding:100px 0;text-align:center;
}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(62,39,35,0.95),rgba(43,29,22,0.9))}
.cta-content{position:relative;z-index:2;max-width:600px;margin:0 auto}
.cta-section h2{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:800;color:var(--color-white);margin-bottom:16px}
.cta-section p{color:rgba(255,255,255,0.85);font-size:15px;line-height:1.8;margin-bottom:32px}
.cta-btn{
    display:inline-flex;align-items:center;gap:10px;background:var(--gradient-accent);color:var(--color-primary-deep);
    font-size:16px;font-weight:700;padding:15px 40px;border-radius:14px;box-shadow:0 8px 30px rgba(212,165,116,0.4);
    transition:var(--transition);
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(212,165,116,0.5)}
.cta-note{color:rgba(255,255,255,0.6);font-size:13px;margin-top:14px}

/* Footer */
.footer{
    background:var(--color-dark-bg);color:rgba(255,255,255,0.7);padding:64px 0 96px;
    margin-left:260px;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:48px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-logo{font-size:18px;font-weight:700;color:var(--color-white)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.6)}
.footer-links h3{color:var(--color-white);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.6);transition:var(--transition)}
.footer-links a:hover{color:var(--color-secondary)}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.1);margin-top:40px;padding-top:24px;
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
    font-size:13px;color:rgba(255,255,255,0.45);
}

/* Sticky CTA */
.sticky-cta{
    position:fixed;bottom:0;left:260px;right:0;z-index:900;
    background:var(--gradient-brand);border-top:1px solid rgba(255,255,255,0.1);
    padding:14px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;
    box-shadow:0 -6px 30px rgba(0,0,0,0.2);
}
.sticky-cta-text{color:var(--color-white);font-size:15px;font-weight:500;display:flex;align-items:center;gap:10px}
.sticky-cta-text i{color:var(--color-secondary);font-size:18px}
.sticky-cta-btn{
    background:var(--gradient-accent);color:var(--color-primary-deep);font-size:14px;font-weight:700;
    padding:10px 28px;border-radius:10px;white-space:nowrap;transition:var(--transition);
    box-shadow:0 4px 14px rgba(0,0,0,0.2);
}
.sticky-cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,165,116,0.4)}

/* Scroll top button */
.scroll-top{
    position:fixed;bottom:90px;right:32px;z-index:800;width:48px;height:48px;
    background:var(--color-primary);color:var(--color-white);border-radius:50%;
    display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);
    opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition);
}
.scroll-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.scroll-top:hover{background:var(--color-primary-dark);transform:translateY(-3px)}

/* Focus states */
a:focus-visible,button:focus-visible,.accordion-title:focus-visible{
    outline:3px solid var(--color-secondary);outline-offset:2px;border-radius:4px;
}

/* Responsive */
@media (max-width: 1024px){
    .sidebar-nav{width:220px;padding:24px 18px}
    .main-content{margin-left:220px}
    .footer{margin-left:220px}
    .sticky-cta{left:220px}
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .adv-grid{grid-template-columns:repeat(3,1fr)}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .scenario-grid{grid-template-columns:repeat(3,1fr)}
    .testimonials-grid{grid-template-columns:repeat(2,1fr)}
    .testimonials-grid .testimonial-card:last-child{grid-column:span 2}
    .resources-layout{grid-template-columns:1fr;gap:32px}
    .news-layout{grid-template-columns:1fr;gap:32px}
}
@media (max-width: 900px){
    .sidebar-nav{display:none}
    .mobile-header{display:block}
    .main-content{margin-left:0}
    .footer{margin-left:0}
    .sticky-cta{left:0}
    section{padding:56px 0}
    .container{padding:0 20px}
}
@media (max-width: 768px){
    .adv-grid{grid-template-columns:1fr}
    .scenario-grid{grid-template-columns:1fr}
    .testimonials-grid{grid-template-columns:1fr}
    .testimonials-grid .testimonial-card:last-child{grid-column:auto}
    .hero-section{padding:80px 0}
    .hero-actions{flex-direction:column;align-items:flex-start}
    .hero-btn-primary,.hero-btn-secondary{width:100%;justify-content:center}
    .hero-countdown{flex-direction:column;align-items:flex-start;gap:12px;width:100%}
    .stats-grid{grid-template-columns:1fr 1fr}
    .category-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .sticky-cta{padding:12px 16px;flex-direction:column;gap:10px}
    .sticky-cta-text{font-size:14px}
    .sticky-cta-btn{width:100%;text-align:center}
}
@media (max-width: 520px){
    .mobile-logo{font-size:14px;max-width:190px}
    .countdown-item{min-width:44px;padding:4px 8px}
    .countdown-item strong{font-size:16px}
    .resource-item{flex-wrap:wrap;gap:10px}
    .resource-meta{display:none}
    .news-item{flex-wrap:wrap;gap:8px}
    .news-date{font-size:12px;padding:4px 10px}
    .scroll-top{right:16px;bottom:130px}
}