/* CSSVariantEngine v3.0 — int-857zhibo.com.cn */
/* Palette: centered-stage glow | Radius: medium rounded | Shadow: gold glow */
/* Spacing: spacious symmetric | Transition: soft easing */
/* Section layouts: {"news":"featured-left","features":"centered","hero":"overlay","testimonials":"grid-3","partners":"grid-6","faq":"with-sidebar","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #7e22ce;
    --color-primary-dark: #581c87;
    --color-accent: #f59e0b;
    --color-surface: #1a1a2e;
    --color-text: #f8fafc;
    --rgb-primary: 126, 34, 206;
    --rgb-accent: 245, 158, 11;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 2px 4px rgba(15, 15, 26, 0.3);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 8px rgba(15, 15, 26, 0.4);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(15, 15, 26, 0.5);
    --space-section: 5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.4s ease-in-out;
    --heading-weight: 600;
    --body-line-height: 1.75;
}

@keyframes subtle-pulse {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: 0 0 28px rgba(var(--rgb-accent), 0.5), 0 6px 12px rgba(15, 15, 26, 0.45); }
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background-color: #0f0f1a;
    caret-color: var(--color-accent);
}
h1, h2, h3, h4 { 
    font-weight: var(--heading-weight); 
    text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.3);
}
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);
    border: 1px solid rgba(var(--rgb-accent), 0.15);
    animation: subtle-pulse 4s infinite ease-in-out;
}
.card:hover, [class*="card"]:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--rgb-accent), 0.4);
    transform: translateY(-2px);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background-color: var(--color-accent);
    color: #0f0f1a;
    font-weight: 600;
    border: none;
    box-shadow: 0 0 16px rgba(var(--rgb-accent), 0.4);
    outline: 2px solid transparent;
    outline-offset: 2px;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow: 0 0 36px rgba(var(--rgb-accent), 0.7);
    outline-color: rgba(var(--rgb-accent), 0.3);
}
a:not([class]) { 
    color: var(--color-accent); 
    transition: var(--transition); 
}
a:not([class]):hover {
    text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.6);
}

/* ========== 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: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 840px; margin: 0 auto; }
.feature-list > * { text-align: center; }

/* 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; text-align: center; }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); 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: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(145deg, var(--color-surface), #2e1065); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(var(--rgb-accent), 0.2);
}

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { 
    background: linear-gradient(135deg, #7e22ce 0%, #0f0f1a 100%); 
    backdrop-filter: blur(8px);
}

/* 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; }
}