/* CSSVariantEngine v3.0 — go-youyouguoji.sx.cn */
/* Palette: sky-coral | Radius: soft rounded | Shadow: glow-accent */
/* Spacing: mosaic | Transition: elastic */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"overlay","testimonials":"stacked","partners":"grid-6","faq":"two-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #f97316;
    --color-surface: #f0f9ff;
    --color-text: #0c4a6e;
    --rgb-primary: 14, 165, 233;
    --rgb-accent: 249, 115, 22;
    --radius-sm: 6px;
    --radius-md: 11px;
    --radius-lg: 15px;
    --radius-xl: 22px;
    --shadow-sm: 0 2px 6px rgba(var(--rgb-primary), 0.2), 0 1px 2px rgba(15, 23, 42, 0.07);
    --shadow-md: 0 0 24px rgba(var(--rgb-primary), 0.4), 0 4px 8px rgba(15, 23, 42, 0.09);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6), 0 8px 16px rgba(15, 23, 42, 0.12);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.75rem;
    --transition: 0.55s cubic-bezier(0.3, 0, 0.3, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

@keyframes softPulse {
    0% { box-shadow: 0 0 18px rgba(var(--rgb-primary), 0.3); }
    100% { box-shadow: 0 0 26px rgba(var(--rgb-accent), 0.45); }
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); caret-color: var(--color-accent); accent-color: var(--color-accent); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 2px rgba(var(--rgb-primary), 0.1); }
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); border: 1px solid rgba(var(--rgb-accent), 0.12); animation: softPulse 5s ease-in-out infinite alternate; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: var(--color-primary); color: #ffffff; border: 1px solid transparent; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; text-underline-offset: 3px; }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* 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; text-shadow: 0 2px 10px rgba(0,0,0,0.2); }

/* 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-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: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner { background: linear-gradient(145deg, #e0f2fe, #fff7ed); border-radius: var(--radius-xl); padding: 3rem; text-align: center; box-shadow: 0 0 30px rgba(var(--rgb-accent), 0.25); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(var(--rgb-accent), 0.35); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0ea5e9, #06b6d4, #14b8a6); }
.card { border: 1px solid rgba(var(--rgb-primary), .18); }
header, .header, .navbar { background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); }

/* 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; }
}