/* CSSVariantEngine v3.0 — zh-zh-yuyanlive.com.cn */
/* Palette: editorial deep red | Radius: soft organic | Shadow: warm layered */
/* Spacing: generous | Transition: smooth long */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"centered","testimonials":"masonry","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #c44536;
    --color-primary-dark: #922e22;
    --color-accent: #d4c5a8;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 212,197,168;
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(26,26,26,0.08), 0 1px 3px rgba(196,69,54,0.04);
    --shadow-md: 0 6px 16px rgba(26,26,26,0.1), 0 3px 8px rgba(196,69,54,0.07);
    --shadow-lg: 0 12px 28px rgba(26,26,26,0.12), 0 6px 12px rgba(196,69,54,0.09);
    --space-section: 3.6rem;
    --space-card: 1.3rem;
    --space-gap: 1.1rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --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(135deg, #f5f1e8 0%, #f0e9dc 50%, #e8dfcc 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(to bottom, #ffffff 0%, #f9f6f0 100%);
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, #e2d9c8 0%, rgba(var(--rgb-primary), 0.15) 100%) 1;
}
.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-primary-dark) 100%);
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: 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; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

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

/* cta: card-style */
.cta-inner { 
    background: radial-gradient(circle at top left, #f5f1e8 0%, #ede4d4 60%, #e6dac7 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, rgba(var(--rgb-primary), 0.3) 0%, var(--color-accent) 100%) 1;
}

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 1400px; margin: 0 auto; padding-inline: 4rem; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-primary-dark); text-shadow: 0 0 8px rgba(var(--rgb-primary), 0.2); }
header, .header, .navbar { 
    background: linear-gradient(to bottom, rgba(245,241,232,0.95) 0%, rgba(245,241,232,0.7) 100%); 
    backdrop-filter: blur(8px);
}

/* 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; }
}