/* CSSVariantEngine v3.0 — maiqiuappofficial.com.cn */
/* Palette: violet-teal glow | Radius: medium 8-16px | Shadow: accent glow */
/* Spacing: symmetric 24px uniform gap | Transition: bouncy glow */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"left-aligned","testimonials":"grid-3","partners":"centered","faq":"two-column","stats":"big-number","cta":"full-bg"} */

@keyframes subtle-pulse {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.07); }
}

:root {
    --color-primary: #7b2cbf;
    --color-primary-dark: #5a189a;
    --color-accent: #00f5d4;
    --color-surface: #f8f0ff;
    --color-text: #2d0c5e;
    --rgb-primary: 123, 44, 191;
    --rgb-accent: 0, 245, 212;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.25);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), inset 0 0 8px rgba(var(--rgb-primary), 0.1);
    --space-section: 3.2rem;
    --space-card: 1.3rem;
    --space-gap: 1.5rem;
    --transition: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
    --caret-color: var(--color-accent);
    --accent-color: var(--color-accent);
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background-color: #fdfaff;
}
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-sm); 
    background-color: var(--color-surface);
    padding: var(--space-card); 
    transition: var(--transition); 
    animation: subtle-pulse 4.5s ease-in-out infinite;
    border: 1px solid rgba(var(--rgb-accent), 0.15);
}
.card:hover, [class*="card"]:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(var(--rgb-accent), 0.4);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-sm);
    transition: var(--transition); 
    border: none;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.7);
    filter: brightness(1.12);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration: none;
}
a:not([class]):hover {
    text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.7);
}

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* 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: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 0 12px rgba(var(--rgb-accent), 0.3); }

/* cta: full-bg */
.cta-section { 
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); 
    color: #fff; 
    padding: 4rem 2rem; 
    box-shadow: 0 0 40px rgba(var(--rgb-primary), 0.35);
}

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

/* 条件性装饰 */

/* 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; }
}