/* CSSVariantEngine v3.0 — zuqiubifen-jiebao-jb.com.cn */
/* Palette: blue-purple gradient | Radius: soft rounded | Shadow: layered soft */
/* Spacing: uniform 24px gap | Transition: smooth 0.5s */
/* Section layouts: {"news":"grid-3","features":"centered","hero":"minimal","testimonials":"grid-3","partners":"grid-6","faq":"two-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #1d4ed8;
    --color-accent: #8b5cf6;
    --color-surface: #f0f4ff;
    --color-text: #1e293b;
    --rgb-primary: 59, 130, 246;
    --rgb-accent: 139, 92, 246;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 3px 6px rgba(30,41,59,.06), 0 1px 2px rgba(30,41,59,.04);
    --shadow-md: 0 10px 24px rgba(37,99,235,.09), 0 4px 8px rgba(30,41,59,.05);
    --shadow-lg: 0 24px 48px rgba(139,92,246,.12), 0 8px 16px rgba(37,99,235,.08);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(135deg, #f8faff 0%, #f0f4ff 50%, #f7f3ff 100%);
    min-height: 100vh;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-md); 
    padding: var(--space-card); 
    transition: var(--transition);
    background: linear-gradient(145deg, #ffffff 0%, #f8faff 100%);
}
.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;
    border: none;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, #7c3aed 100%);
    filter: brightness(1.05);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition);
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent)) 0 100% / 0 2px no-repeat;
}
a:not([class]):hover {
    background-size: 100% 2px;
}

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: minimal */
.hero { 
    padding: 2rem 0; 
    background: radial-gradient(circle at top left, rgba(59,130,246,0.08) 0%, transparent 50%),
                radial-gradient(circle at bottom right, rgba(139,92,246,0.08) 0%, transparent 50%);
} 
.hero-content { max-width: 560px; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

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

/* cta: centered */
.cta-inner { 
    text-align: center; 
    max-width: 700px; 
    margin: 0 auto;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(59,130,246,0.05) 0%, rgba(139,92,246,0.05) 100%);
    border-radius: var(--radius-xl);
}

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { 
    transform: translateY(-6px); 
    box-shadow: var(--shadow-lg); 
}
.card { 
    border: 2px solid transparent; 
    border-image: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(139,92,246,0.2)) 1; 
}
header, .header, .navbar { 
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%); 
    backdrop-filter: blur(12px);
}

/* 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: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .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; }
}