/* CSSVariantEngine v3.0 — decopai.com */
/* Palette: dark-teal-glow | Radius: soft-rounded | Shadow: glow-accent */
/* Spacing: comfortable | Transition: smooth-glow */
/* Section layouts: {"news":"masonry-2","features":"grid-3","hero":"overlay","testimonials":"carousel","partners":"scroll","faq":"with-sidebar","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #252e3a;
    --color-primary-dark: #1a222c;
    --color-accent: #00ffa3;
    --color-surface: #f8fafc;
    --color-text: #1e293b;
    --rgb-primary: 37,46,58;
    --rgb-accent: 0,255,163;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(0,0,0,0.1);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.5rem;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 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); text-shadow: 0 1px 2px rgba(0,0,0,0.05); }
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); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; border: 1px solid rgba(var(--rgb-accent), 0.1); animation: subtlePulse 4s ease-in-out infinite; }
.card:hover, [class*="card"]:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: rgba(var(--rgb-accent), 0.3); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: #fff; border: 1px solid var(--color-accent); box-shadow: var(--shadow-sm); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: var(--shadow-lg); background-color: var(--color-accent); color: var(--color-primary-dark); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration: none; }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.5); }

/* ========== 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-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* 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, var(--color-primary-dark) 0%, var(--color-primary) 100%); }
                .hero-content { position: relative; z-index: 1; }
                .hero h1, .hero h2, .hero p { color: #ffffff; text-shadow: 0 0 16px rgba(var(--rgb-accent), 0.4); }

/* 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 16s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
                @keyframes subtlePulse { 0% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 2px 4px rgba(0,0,0,0.06); } 50% { box-shadow: 0 0 18px rgba(var(--rgb-accent), 0.3), 0 2px 4px rgba(0,0,0,0.06); } 100% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.2), 0 2px 4px rgba(0,0,0,0.06); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background-color: var(--color-primary); color: #fff; border-color: var(--color-accent); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #fff; padding: 4rem 2rem; border-top: 2px solid var(--color-accent); box-shadow: 0 -8px 32px rgba(var(--rgb-accent), 0.2); }

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

/* 条件性装饰 */
header, .header, .navbar { background: rgba(var(--rgb-primary), 0.92); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.15); }

/* 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; }
}