/* CSSVariantEngine v3.0 — zh-zh-yiwan28.com.cn */
/* Palette: violet-amber | Radius: soft rounded | Shadow: multi-layer gradient tinted */
/* Spacing: spacious | Transition: smooth long curve */
/* Section layouts: {"news":"featured-top","features":"horizontal","hero":"split","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"inline","cta":"card-style"} */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #5b21b6;
    --color-accent: #f59e0b;
    --color-surface: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    --color-text: #1e1b4b;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(124, 58, 237, 0.07);
    --shadow-md: 0 4px 16px rgba(124, 58, 237, 0.1), 0 2px 6px rgba(245, 158, 11, 0.08);
    --shadow-lg: 0 8px 32px rgba(124, 58, 237, 0.15), 0 4px 12px rgba(245, 158, 11, 0.12);
    --space-section: 5.5rem;
    --space-card: 2.2rem;
    --space-gap: 1.6rem;
    --transition: 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(0deg, #ffffff 0%, #f8fafc 100%);
    caret-color: var(--color-primary);
    accent-color: var(--color-accent);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 2px rgba(30, 27, 75, 0.05); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
}
section:nth-child(even) {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}
section:nth-child(odd):not(.cta-section) {
    background: linear-gradient(180deg, #fffbeb 0%, #fef3c7 100%);
}
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition); 
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(245,158,11,0.2)) 1 stretch;
    backdrop-filter: blur(2px);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
    border: none;
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== Section Layout Variants ========== */

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(120deg, #4f46e5 0%, #7c3aed 50%, #f59e0b 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: white;
    text-shadow: 0 1px 3px rgba(0,0,0,0.15);
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.3);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-6px); 
    box-shadow: var(--shadow-lg); 
    border-image: linear-gradient(135deg, rgba(124,58,237,0.6), rgba(245,158,11,0.6)) 1 stretch;
}
a:not([class]):hover { 
    color: var(--color-accent); 
    text-shadow: 0 0 4px rgba(245,158,11,0.3);
}

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
    :root { --space-section: 2.2rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}