/* CSSVariantEngine v3.0 — zh-500fucai.cn */
/* Palette: amber-teal gradient | Radius: asymmetric mixed | Shadow: dual-color layered */
/* Spacing: uneven contrast | Transition: long smooth */
/* Section layouts: {"news":"featured-top","features":"grid-4","hero":"minimal","testimonials":"masonry","partners":"centered","faq":"with-sidebar","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #d97706;
    --color-primary-dark: #78350f;
    --color-accent: #0d9488;
    --color-surface: #fef3c7;
    --color-text: #1f2937;
    --rgb-primary: 217, 119, 6;
    --rgb-accent: 13, 148, 136;
    --radius-sm: 2px;
    --radius-md: 18px;
    --radius-lg: 32px;
    --radius-xl: 48px;
    --shadow-sm: 1px 3px 6px rgba(217, 119, 6, 0.15), -1px -1px 3px rgba(13, 148, 136, 0.1);
    --shadow-md: 4px 12px 24px rgba(217, 119, 6, 0.2), -2px -4px 12px rgba(13, 148, 136, 0.15);
    --shadow-lg: 8px 24px 48px rgba(217, 119, 6, 0.25), -4px -8px 20px rgba(13, 148, 136, 0.2), 0 0 60px rgba(254, 243, 199, 0.3);
    --space-section: 3.2rem;
    --space-card: 1.4rem;
    --space-gap: 1.2rem;
    --transition: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #fffbeb 0%, #ecfdf5 100%);
    caret-color: var(--color-accent);
}
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, #f0fdf4);
    border: 3px solid transparent;
    border-image: linear-gradient(135deg, #d97706, #0d9488) 1 stretch;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, #d97706, #0d9488);
    color: white;
    border: 2px solid #fef3c7;
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition);
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

/* ========== 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;
    background: linear-gradient(120deg, #fbbf24, #14b8a6);
}

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }
.feature-list > *:nth-child(odd) { background: linear-gradient(180deg, #fef3c7, #ffedd5); }
.feature-list > *:nth-child(even) { background: linear-gradient(180deg, #ecfdf5, #d1fae5); }

/* hero: minimal */
.hero { 
    padding: 2rem 0; 
} 
.hero-content { max-width: 560px; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { 
    break-inside: avoid; 
    margin-bottom: var(--space-gap);
    background: radial-gradient(circle at top left, #fef3c7 0%, #ffffff 70%);
}

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid > * { filter: grayscale(0.7); transition: var(--transition); }
.partner-grid > *:hover { filter: grayscale(0); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.faq-wrapper > *:last-child { background: linear-gradient(180deg, #0d9488, #0f766e); color: white; padding: 2rem; border-radius: var(--radius-xl); }

/* 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; 
    background: linear-gradient(90deg, #d97706, #0d9488);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 8px rgba(217, 119, 6, 0.2);
}

/* cta: centered */
.cta-inner { 
    text-align: center; 
    max-width: 700px; 
    margin: 0 auto;
    background: linear-gradient(135deg, #fbbf24 0%, #0d9488 100%);
    padding: 3rem;
    border-radius: var(--radius-xl);
}

/* 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) scale(1.02); 
    box-shadow: var(--shadow-lg);
    border-image: linear-gradient(135deg, #0d9488, #d97706) 1 stretch;
}
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 30%, #0d9488 70%, #0f766e 100%); 
    color: white;
}

/* 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; }
}