/* CSSVariantEngine v3.0 — zh-xinqiu.org.cn */
/* Palette: dark-gold-stage | Radius: large | Shadow: pillowy-soft */
/* Spacing: airy-rhythm | Transition: smooth-lifted */
/* Section layouts: {"news":"masonry-2","features":"grid-4","hero":"overlay","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #d4af37;
    --color-primary-dark: #997a1e;
    --color-accent: #ffd700;
    --color-surface: #f8f7ff;
    --color-text: #0f0f1a;
    --rgb-primary: 212, 175, 55;
    --rgb-accent: 255, 215, 0;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(var(--rgb-primary), 0.08);
    --shadow-md: 0 8px 24px rgba(15, 15, 26, 0.12), 0 3px 10px rgba(var(--rgb-primary), 0.06);
    --shadow-lg: 0 16px 48px rgba(15, 15, 26, 0.18), 0 6px 20px rgba(var(--rgb-primary), 0.1);
    --space-section: 5rem;
    --space-card: 2.5rem;
    --space-gap: 2.25rem;
    --transition: 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #0f0f1a; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-align: center; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: var(--space-card); transition: var(--transition); background-color: var(--color-surface); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background-color: #0f0f1a; justify-content: center; }
.hero-content { position: relative; z-index: 1; text-align: center; }

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

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

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #fff; padding: 4rem 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 900px; margin: 0 auto; background-color: var(--color-surface); border-radius: var(--radius-xl); padding: 0 2rem; }

/* 条件性装饰 */
.card { border: 1px solid rgba(var(--rgb-primary), 0.15); }
header, .header, .navbar { background: rgba(15, 15, 26, 0.85); backdrop-filter: blur(12px); }

/* 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: 2.75rem; --space-card: 1.5rem; --space-gap: 1.5rem; }
    .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; }
}