/* CSSVariantEngine v3.0 — bajiedianjing.org.cn */
/* Palette: spotlight-gold | Radius: medium-rounded | Shadow: glow-effects */
/* Spacing: centered-symmetric | Transition: smooth-glow */
/* Section layouts: {"news":"featured-top","features":"grid-3","hero":"minimal","testimonials":"carousel","partners":"grid-4","faq":"with-sidebar","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #d4af37;
    --color-primary-dark: #b8860b;
    --color-accent: #ffd700;
    --color-surface: #17172b;
    --color-text: #f8fafc;
    --rgb-primary: 212, 175, 55;
    --rgb-accent: 255, 215, 0;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.15);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 2px 8px rgba(0,0,0,0.2);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 4px 16px rgba(0,0,0,0.3);
    --space-section: 5rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

@keyframes subtlePulse {
    0%, 100% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.4); }
    50% { box-shadow: 0 0 36px rgba(var(--rgb-accent), 0.55); }
}

/* 基础覆盖 */
body { background-color: #0f0f1a; color: var(--color-text); line-height: var(--body-line-height); }
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-md); padding: var(--space-card); transition: var(--transition); background-color: var(--color-surface); }
.card:hover, [class*="card"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 6px 20px rgba(0,0,0,0.35); transform: translateY(-2px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: #0f0f1a; border: none; animation: subtlePulse 3s infinite ease-in-out; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: var(--color-accent); box-shadow: 0 0 36px rgba(var(--rgb-accent), 0.7); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration: none; }
a:not([class]):hover { text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.6); }

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

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }
.hero-content { margin: 0 auto; text-align: center; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; } 
.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; }
.partner-grid img { filter: brightness(0) saturate(100%) invert(82%) sepia(54%) saturate(1284%) hue-rotate(358deg) brightness(101%) contrast(104%); transition: var(--transition); }
.partner-grid img:hover { filter: brightness(0) saturate(100%) invert(93%) sepia(43%) saturate(628%) hue-rotate(352deg) brightness(107%) contrast(107%); }

/* 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; text-align: center; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; padding: 3rem; border-radius: var(--radius-xl); background-color: var(--color-surface); box-shadow: var(--shadow-lg); }

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 900px; margin: 0 auto; }

/* 条件性装饰 */
.card { border: 1px solid rgba(var(--rgb-accent), .2); }
header, .header, .navbar { background: rgba(15, 15, 26, 0.85); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.1); }

/* 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: 2.5rem; --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; }
}