/* CSSVariantEngine v3.0 — chaofandianjing.sc.cn */
/* Palette: vivid violet-tangerine | Radius: bold asymmetric | Shadow: multi-layer gradient-tinted */
/* Spacing: mixed tight-loose | Transition: smooth extended */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"left-aligned","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #7928ca;
    --color-primary-dark: #4c1d95;
    --color-accent: #ff0080;
    --color-surface: linear-gradient(135deg, #fef7ff 0%, #f0f9ff 100%);
    --color-text: #1e1b4b;
    --rgb-primary: 121, 40, 202;
    --rgb-accent: 255, 0, 128;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-xl: 36px;
    --shadow-sm: 0 4px 12px rgba(121,40,202,0.18), 0 1px 3px rgba(255,0,128,0.08);
    --shadow-md: 0 9px 26px rgba(121,40,202,0.22), 0 2px 9px rgba(255,0,128,0.13);
    --shadow-lg: 0 18px 52px rgba(121,40,202,0.3), 0 5px 18px rgba(255,0,128,0.2), 0 -3px 10px rgba(56,189,248,0.12);
    --space-section: 2.4rem;
    --space-card: 1.2rem;
    --space-gap: 0.5rem;
    --transition: 0.55s cubic-bezier(0.25, 0.8, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: linear-gradient(180deg, #fdf4ff 0%, #eff6ff 50%, #fdf2f8 100%);
}
h1, h2, h3, h4 { 
    font-weight: var(--heading-weight); 
    text-shadow: 0 1px 3px rgba(121,40,202,0.15);
}
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%, #faf5ff 100%);
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, #7928ca, #ff0080, #06b6d4) 1 stretch;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, #7928ca 0%, #ff0080 100%);
    color: white;
    border: none;
    box-shadow: var(--shadow-sm);
}
a:not([class]) { 
    color: var(--color-accent); 
    transition: var(--transition);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

/* ========== 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: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.8rem; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: 2.5rem; }
.testimonial-list > * { break-inside: avoid; margin-bottom: 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: 2rem; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; text-align: center; }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, #7928ca 0%, #ff0080 50%, #f97316 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: white;
    box-shadow: var(--shadow-lg);
}

/* 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(-8px) scale(1.02); 
    box-shadow: var(--shadow-lg); 
    filter: saturate(1.1);
}
.card { 
    border: 2px solid rgba(var(--rgb-accent), .12); 
}
header, .header, .navbar { 
    box-shadow: 0 4px 16px rgba(121,40,202,0.15), 0 2px 6px rgba(255,0,128,0.07); 
    background: linear-gradient(90deg, #ffffff 0%, #faf5ff 100%);
    backdrop-filter: blur(10px);
}

/* 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; }
}