/* CSSVariantEngine v3.0 — zh-6686live365.com.cn */
/* Palette: cyan-navy | Radius: medium-rounded | Shadow: glow-focused */
/* Spacing: balanced | Transition: smooth-ease */
/* Section layouts: {"news":"grid-3","features":"horizontal","hero":"left-aligned","testimonials":"grid-3","partners":"grid-6","faq":"with-sidebar","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #22d3ee;
    --color-surface: #f8fafc;
    --color-text: #0f172a;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 34, 211, 238;
    --radius-sm: 7px;
    --radius-md: 13px;
    --radius-lg: 19px;
    --radius-xl: 25px;
    --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4), 0 4px 12px rgba(15, 23, 42, 0.1);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 12px 32px rgba(15, 23, 42, 0.12);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

@keyframes glowPulse {
    0% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.3); }
    50% { box-shadow: 0 0 26px rgba(var(--rgb-accent), 0.55); }
    100% { box-shadow: 0 0 12px rgba(var(--rgb-accent), 0.3); }
}

/* 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(15, 23, 42, 0.07); }
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; border: 1px solid rgba(var(--rgb-accent), 0.15); }
.card:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 16px 36px rgba(15, 23, 42, 0.12); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; border: none; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { animation: glowPulse 2s infinite ease-in-out; background-color: var(--color-accent); color: var(--color-text); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-underline-offset: 3px; }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 8px rgba(var(--rgb-accent), 0.4); }

/* ========== 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: 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; background-color: white; border-radius: var(--radius-md); border: 1px solid rgba(var(--rgb-accent), 0.1); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; color: #f0f9ff; }

/* 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: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.faq-wrapper > aside { background-color: #252e3a; border-radius: var(--radius-lg); padding: 1.5rem; color: #e2e8f0; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #252e3a, #0ea5e9); color: #f0f9ff; padding: 4rem 2rem; box-shadow: 0 0 40px rgba(var(--rgb-accent), 0.35) inset; }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #252e3a, #0f172a); box-shadow: 0 0 60px rgba(var(--rgb-accent), 0.2) inset; }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: rgba(37, 46, 58, 0.95); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(var(--rgb-accent), 0.2); }

/* 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; }
}