/* CSSVariantEngine v3.0 — k8kaifa-qq.com.cn */
/* Palette: Pinterest gradient | Radius: soft rounded | Shadow: soft layered */
/* Spacing: airy | Transition: smooth long */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"overlay","testimonials":"carousel","partners":"scroll","faq":"single-column","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #e64c77;
    --color-primary-dark: #c22d58;
    --color-accent: #ffb86c;
    --color-surface: linear-gradient(135deg, #f7f9fc 0%, #eef1f5 100%);
    --color-text: #2d3748;
    --rgb-primary: 230,76,119;
    --rgb-accent: 255,184,108;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(230,76,119,0.07), 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 6px 18px rgba(230,76,119,0.09), 0 3px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 36px rgba(230,76,119,0.12), 0 6px 16px rgba(0,0,0,0.07);
    --space-section: 2.25rem;
    --space-card: 1.125rem;
    --space-gap: 1.125rem;
    --transition: 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height); 
    background: var(--color-surface);
}
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(180deg, #ffffff 0%, #fffdfb 100%);
    border-top: 3px solid;
    border-image: linear-gradient(90deg, #e64c77, #ffb86c, #74c0fc) 1;
}
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 42px rgba(230,76,119,0.15), 0 7px 20px rgba(0,0,0,0.08);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--rgb-primary), 0.35);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    box-shadow: 0 6px 20px rgba(var(--rgb-primary), 0.45);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    background: linear-gradient(transparent 90%, rgba(var(--rgb-accent), 0.3) 100%);
}
a:not([class]):hover {
    background: linear-gradient(transparent 70%, rgba(var(--rgb-primary), 0.4) 100%);
}

/* ========== 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-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { 
    position: relative; 
    min-height: 70vh; 
    display: flex; 
    align-items: center; 
    background: linear-gradient(120deg, rgba(230,76,119,0.08) 0%, rgba(255,184,108,0.08) 50%, rgba(116,192,252,0.08) 100%);
}
.hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }

/* 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: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card {
    background: linear-gradient(180deg, #ffffff 0%, #fff7f0 100%);
}

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.cta-inner {
    background: linear-gradient(135deg, rgba(var(--rgb-primary), 0.06) 0%, rgba(var(--rgb-accent), 0.1) 100%);
    border-radius: var(--radius-xl);
    padding: 2rem;
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
header, .header, .navbar { 
    box-shadow: 0 3px 12px rgba(230,76,119,0.06), 0 1px 4px rgba(0,0,0,0.03); 
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
}

/* 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; }
}