/* CSSVariantEngine v3.0 — go-500cai.com.cn */
/* Palette: centered-stage | Radius: soft-rounded | Shadow: gradient-tinted */
/* Spacing: generous | Transition: 0.5s smooth */
/* Section layouts: {"news":"grid-3","features":"grid-3","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"single-column","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #7928ca;
    --color-primary-dark: #5a1e99;
    --color-accent: #f59e0b;
    --color-surface: #fffef7;
    --color-text: #1a1423;
    --rgb-primary: 121,40,202;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 8px rgba(121,40,202,0.08), 0 1px 3px rgba(245,158,11,0.05);
    --shadow-md: 0 8px 20px rgba(121,40,202,0.12), 0 3px 10px rgba(245,158,11,0.07);
    --shadow-lg: 0 16px 40px rgba(121,40,202,0.18), 0 6px 16px rgba(245,158,11,0.1);
    --space-section: 5.5rem;
    --space-card: 1.7rem;
    --space-gap: 1.4rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #0f0f1a 0%, #1a1a2e 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(145deg, #ffffff, #fff9f0);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(90deg, var(--color-primary), #a855f7);
    color: white;
}
a:not([class]) { 
    color: var(--color-accent); 
    transition: var(--transition);
    text-decoration: none;
}
a:not([class]):hover {
    color: var(--color-primary);
}

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

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

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 24s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 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(90deg, var(--color-primary), var(--color-accent), var(--color-primary)); 
    color: #fff; 
    padding: 4rem 2rem; 
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 920px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #0f0f1a 0%, #2d1b47 40%, #7928ca 75%, rgba(245,158,11,0.3) 100%); 
}
.card { 
    border-left: 3px solid;
    border-image: linear-gradient(to bottom, var(--color-primary), var(--color-accent)) 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: 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; }
}