/* CSSVariantEngine v3.0 — ch11-aigame.com.cn */
/* Palette: warm-terracotta | Radius: glow-soft | Shadow: layered-glow */
/* Spacing: airy | Transition: spring-glow */
/* Section layouts: {"news":"featured-top","features":"horizontal","hero":"overlay","testimonials":"stacked","partners":"grid-6","faq":"single-column","stats":"inline","cta":"full-bg"} */

@keyframes soft-glow-pulse {
    0%, 100% { box-shadow: 0 6px 20px rgba(45,45,45,0.08), 0 0 26px rgba(196,123,90,0.30); }
    50% { box-shadow: 0 6px 20px rgba(45,45,45,0.08), 0 0 34px rgba(196,123,90,0.48); }
}

:root {
    --color-primary: #7a6a5a;
    --color-primary-dark: #2d2d2d;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 122,106,90;
    --rgb-accent: 196,123,90;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 2px 10px rgba(45,45,45,0.06), 0 0 18px rgba(196,123,90,0.16);
    --shadow-md: 0 6px 20px rgba(45,45,45,0.08), 0 0 26px rgba(196,123,90,0.30);
    --shadow-lg: 0 12px 36px rgba(45,45,45,0.14), 0 0 34px rgba(196,123,90,0.56);
    --space-section: 2.25rem;
    --space-card: 1.1rem;
    --space-gap: 0.85rem;
    --transition: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); background-image: radial-gradient(circle at 18% 8%, rgba(196,123,90,0.09), transparent 42%), radial-gradient(circle at 82% 92%, rgba(122,106,90,0.07), transparent 46%); 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); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: var(--shadow-sm); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* 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: 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-dark) 0%, var(--color-primary) 58%, var(--color-accent) 100%); color: #faf8f3; padding: 4rem 2rem; border-radius: var(--radius-lg); box-shadow: inset 0 0 70px rgba(196,123,90,0.18), 0 0 42px rgba(196,123,90,0.28); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px) scale(1.01); box-shadow: var(--shadow-lg); animation: none; }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-accent); animation: soft-glow-pulse 5s ease-in-out infinite; }
header, .header, .navbar { background: rgba(250, 248, 243, 0.86); backdrop-filter: blur(12px); box-shadow: 0 1px 0 rgba(196,123,90,0.22), 0 0 28px rgba(196,123,90,0.10); }

/* 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: 2.25rem; --space-card: 1.1rem; --space-gap: 0.85rem; }
    .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; }
}