/* CSSVariantEngine v3.0 — yixi1020.com */
/* Palette: editorial-magazine | Radius: soft-rounded | Shadow: glow-accent */
/* Spacing: generous | Transition: smooth-ease */
/* Section layouts: {"news":"featured-left","features":"horizontal","hero":"split","testimonials":"carousel","partners":"centered","faq":"single-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #1a1a1a;
    --color-primary-dark: #0d0d0d;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 26,26,26;
    --rgb-accent: 196,69,54;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-accent), 0.12);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.2), 0 4px 12px rgba(26,26,26,0.06);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.4), 0 8px 20px rgba(26,26,26,0.08);
    --space-section: 4rem;
    --space-card: 1.2rem;
    --space-gap: 0.9rem;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

@keyframes pulse-glow {
    0% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.3), 0 6px 16px rgba(26,26,26,0.07); }
    100% { box-shadow: var(--shadow-md); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); accent-color: var(--color-accent); 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); padding-inline: 3.5rem; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; border: 1px solid rgba(var(--rgb-accent), 0.1); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: #ffffff; border: none; text-shadow: 0 1px 2px rgba(0,0,0,0.1); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-thickness: 2px; text-underline-offset: 3px; }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

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

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

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-color: rgba(var(--rgb-accent), 0.08); border-radius: var(--radius-xl); padding: 3rem; }

/* Page Layout: narrow-centered */
/* 宽版居中 */
            .page-main { max-width: 1320px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 10px 28px rgba(26,26,26,0.1); animation: pulse-glow 2s infinite ease-in-out; }
header, .header, .navbar { background: rgba(245, 241, 232, 0.85); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.15); }

/* 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: 2.2rem; --space-card: 1rem; --space-gap: 0.8rem; }
    .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; }
    section, .section { padding-inline: 1.5rem; }
}