/* CSSVariantEngine v3.0 — jy-jiuyou.sx.cn */
/* Palette: pinterest-soft | Radius: large-rounded | Shadow: multi-layer-soft */
/* Spacing: comfortable | Transition: ease-smooth */
/* Section layouts: {"news":"grid-4","features":"horizontal","hero":"overlay","testimonials":"grid-3","partners":"grid-6","faq":"single-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #d83a56;
    --color-primary-dark: #b92e47;
    --color-accent: #3a86ff;
    --color-surface: #f5f5f7;
    --color-text: #1f2937;
    --rgb-primary: 216, 58, 86;
    --rgb-accent: 58, 134, 255;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 36px;
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 14px 32px -8px rgba(0,0,0,0.1);
    --shadow-lg: 0 6px 18px rgba(0,0,0,0.05), 0 24px 48px -12px rgba(0,0,0,0.13);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.45s cubic-bezier(0.22, 0.1, 0.25, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
    caret-color: var(--color-primary);
    accent-color: var(--color-accent);
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background-color: 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-color: #ffffff;
}
.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}
.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);
    text-underline-offset: 3px;
}
a:not([class]):hover {
    color: var(--color-primary-dark);
}

/* ========== 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: 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;
    background: linear-gradient(135deg, #fff5f7 0%, #eff6ff 100%);
}
.hero-content { position: relative; z-index: 1; }

/* 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: 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: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

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

/* 条件性装饰 */
.card { 
    border: 1px solid rgba(0,0,0,0.05); 
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    opacity: 0.8;
}

/* 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; }
}