/* CSSVariantEngine v3.0 — go-hupu.net.cn */
/* Palette: pinterest-glow | Radius: medium-rounded | Shadow: glow-accent */
/* Spacing: medium | Transition: smooth-glow */
/* Section layouts: {"news":"grid-4","features":"grid-4","hero":"centered","testimonials":"masonry","partners":"grid-6","faq":"with-sidebar","stats":"big-number","cta":"card-style"} */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #8b5cf6;
    --color-surface: #ffffff;
    --color-text: #1f2937;
    --rgb-primary: 37,99,235;
    --rgb-accent: 139,92,246;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-accent), 0.12);
    --shadow-md: 0 4px 16px rgba(var(--rgb-accent), 0.18), 0 0 24px rgba(var(--rgb-accent), 0.3);
    --shadow-lg: 0 8px 32px rgba(var(--rgb-accent), 0.22), 0 0 32px rgba(var(--rgb-accent), 0.4);
    --space-section: 2.4rem;
    --space-card: 1.2rem;
    --space-gap: 1.25rem;
    --transition: 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

@keyframes softGlowPulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(var(--rgb-accent), 0.18), 0 0 20px rgba(var(--rgb-accent), 0.25); }
    50% { box-shadow: 0 4px 16px rgba(var(--rgb-accent), 0.18), 0 0 28px rgba(var(--rgb-accent), 0.4); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f3f4f6; }
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-sm); 
    padding: var(--space-card); 
    transition: var(--transition); 
    background-color: var(--color-surface);
    position: relative;
}
.card::before, [class*="card"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0.9;
}
.card:hover, [class*="card"]:hover {
    box-shadow: 0 8px 24px rgba(var(--rgb-accent), 0.3), 0 0 32px rgba(var(--rgb-accent), 0.6);
    transform: translateY(-2px);
    animation: softGlowPulse 2s infinite ease-in-out;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    border: none;
    box-shadow: 0 2px 12px rgba(var(--rgb-accent), 0.3);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow: 0 4px 20px rgba(var(--rgb-accent), 0.5), 0 0 28px rgba(var(--rgb-accent), 0.5);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.3); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.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; }
.partner-grid > div { background: white; border-radius: var(--radius-md); padding: 1rem; box-shadow: var(--shadow-sm); transition: var(--transition); }
.partner-grid > div:hover { box-shadow: var(--shadow-md); }

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

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.3); }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: white;
    box-shadow: 0 8px 32px rgba(var(--rgb-accent), 0.4), 0 0 40px rgba(var(--rgb-accent), 0.3);
}

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

/* 条件性装饰 */

/* 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: 1rem; }
    .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; }
}