/* CSSVariantEngine v3.0 — haocai.org.cn */
/* Palette: deep-indigo | Radius: soft-large | Shadow: layered-glow */
/* Spacing: balanced | Transition: silky-long */
/* Section layouts: {"news":"featured-left","features":"horizontal","hero":"overlay","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #4c6ef5;
    --color-primary-dark: #2b3a67;
    --color-accent: #22d3ee;
    --color-surface: #f4f7fb;
    --color-text: #1c2536;
    --color-sidebar: #252e3a;
    --color-sidebar-deep: #1a2230;
    --color-mist: #e6edf9;
    --rgb-primary: 76,110,245;
    --rgb-accent: 34,211,238;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 1px 2px rgba(37,46,58,0.07), 0 2px 8px -2px rgba(37,46,58,0.06);
    --shadow-md: 0 2px 4px rgba(37,46,58,0.05), 0 12px 28px -10px rgba(37,46,58,0.22), inset 0 1px 0 rgba(255,255,255,0.65);
    --shadow-lg: 0 4px 10px rgba(37,46,58,0.06), 0 26px 56px -18px rgba(76,110,245,0.38), inset 0 1px 0 rgba(255,255,255,0.7);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #f7faff 0%, var(--color-surface) 45%, var(--color-mist) 100%);
    caret-color: var(--color-primary);
    accent-color: var(--color-primary);
}
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(150deg, #ffffff 0%, #f7faff 55%, #eef4ff 100%);
    border-color: rgba(76,110,245,0.18);
    transition-property: transform, box-shadow, border-color, background;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    border-color: rgba(76,110,245,0.35);
    color: #ffffff;
    background: linear-gradient(120deg, #4c6ef5 0%, #6d8bff 50%, #22d3ee 100%);
    box-shadow: 0 2px 6px rgba(76,110,245,0.28), 0 12px 26px -12px rgba(34,211,238,0.55);
    text-shadow: 0 1px 2px rgba(20,30,60,0.28);
    outline-color: rgba(34,211,238,0.6);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow: 0 4px 12px rgba(76,110,245,0.34), 0 20px 42px -14px rgba(34,211,238,0.7);
    border-color: rgba(34,211,238,0.75);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(76,110,245,0.35);
}

/* ========== 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: 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; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

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

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: full-bg */
.cta-section {
    background: linear-gradient(125deg, #252e3a 0%, #2f3d52 38%, #4c6ef5 78%, #22d3ee 100%);
    color: #f2f7ff;
    padding: 4rem 2rem;
    text-shadow: 0 2px 12px rgba(10,18,34,0.45);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-decoration-color: rgba(34,211,238,0.6); }
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(120% 140% at 12% 8%, rgba(34,211,238,0.30) 0%, rgba(34,211,238,0) 55%),
        radial-gradient(100% 120% at 92% 96%, rgba(76,110,245,0.42) 0%, rgba(76,110,245,0) 60%),
        linear-gradient(135deg, #1a2230 0%, #252e3a 42%, #2b3a67 72%, #4c6ef5 100%);
    color: #eef4ff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-shadow: 0 2px 14px rgba(8,14,28,0.5);
}
.card { border-left: 3px solid var(--color-primary); border-image: linear-gradient(180deg, #4c6ef5 0%, #22d3ee 100%) 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; --radius-lg: 14px; --shadow-md: 0 2px 6px rgba(37,46,58,0.08), 0 10px 22px -10px rgba(76,110,245,0.28); }
    .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; }
}