/* CSSVariantEngine v3.0 — zrg-mobile-kaiyun.com */
/* Palette: pinterest-like | Radius: pillowy | Shadow: soft */
/* Spacing: airy | Transition: snappy */
/* Section layouts: {"news":"masonry-2","features":"grid-2","hero":"left-aligned","testimonials":"stacked","partners":"grid-4","faq":"with-sidebar","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #e23b3b;
    --color-primary-dark: #b02b2b;
    --color-accent: #ff6b6b;
    --color-card-bg: #ffffff;
    --color-bg: #f5f7f9;
    --color-text: #1c2427;
    --rgb-primary: 226,59,59;
    --rgb-accent: 255,107,107;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 6px 18px rgba(28,36,39,0.06), 0 2px 6px rgba(28,36,39,0.04);
    --shadow-md: 0 14px 36px rgba(28,36,39,0.08), 0 6px 14px rgba(28,36,39,0.04);
    --shadow-lg: 0 28px 68px rgba(28,36,39,0.10), inset 0 1px 0 rgba(255,255,255,0.6);
    --space-section: 2.2rem;
    --space-card: 1.1rem;
    --space-gap: 0.9rem;
    --transition: 0.28s cubic-bezier(.2,.9,.25,1);
    --heading-weight: 800;
    --body-line-height: 1.7;
    --accent-strip-width: 6px;
    --outline-color: rgba(226,59,59,0.18);
    --glass-blur: 6px;
}

/* 基础覆盖 */
body { background-color: var(--color-bg); color: var(--color-text); line-height: var(--body-line-height); -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 2px 8px rgba(28,36,39,0.03); }
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: box-shadow var(--transition), transform var(--transition), background-color var(--transition);
    background-color: var(--color-card-bg);
    border-style: solid;
    border-color: rgba(28,36,39,0.04);
    border-radius: var(--radius-lg);
    /* subtle left accent using background layering */
    background-image: linear-gradient(90deg, var(--color-accent) var(--accent-strip-width), transparent var(--accent-strip-width));
    background-repeat: no-repeat;
    background-origin: border-box;
    background-clip: padding-box, border-box;
}
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    border-style: solid;
    border-color: rgba(28,36,39,0.06);
    background-image: linear-gradient(180deg, rgba(var(--rgb-primary),0.06), rgba(255,255,255,0));
    color: var(--color-primary);
    caret-color: var(--color-primary-dark);
    accent-color: var(--color-primary);
}
a:not([class]) { color: var(--color-primary); transition: color var(--transition); text-decoration-color: rgba(34,34,34,0.08); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); 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: 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-text); text-shadow: 0 4px 18px rgba(28,36,39,0.04); }

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

/* 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, rgba(var(--rgb-primary),0.12), rgba(255,255,255,0.02));
    backdrop-filter: blur(var(--glass-blur)) saturate(105%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(105%);
    border-bottom: 1px solid rgba(28,36,39,0.02);
}

/* subtle focus outlines */
:focus { outline-color: var(--outline-color); outline-style: solid; outline-offset: 3px; }

/* 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; }
}