/* CSSVariantEngine v3.0 — mobile-skyapp.com.cn */
/* Palette: warm-minimal | Radius: soft | Shadow: layered-warm */
/* Spacing: vertical-flow | Transition: gradient-rich */
/* Section layouts: {"news":"featured-top","features":"centered","hero":"centered","testimonials":"stacked","partners":"centered","faq":"single-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #87a878;
    --color-primary-dark: #557a48;
    --color-primary-mid: #6f9460;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 135,168,120;
    --rgb-accent: 196,123,90;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(45,45,45,.05), 0 1px 4px rgba(135,168,120,.06);
    --shadow-md: 0 2px 4px rgba(45,45,45,.04), 0 8px 24px rgba(135,168,120,.10), 0 1px 3px rgba(45,45,45,.06);
    --shadow-lg: 0 8px 24px rgba(45,45,45,.07), 0 24px 48px rgba(135,168,120,.12), 0 4px 8px rgba(45,45,45,.05);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 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: radial-gradient(ellipse at top left, rgba(var(--rgb-primary), .10), transparent 60%), radial-gradient(ellipse at bottom right, rgba(var(--rgb-accent), .08), transparent 50%), var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-text); }
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, rgba(255,255,255,.92), rgba(250,248,243,.55)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-mid) 50%, var(--color-accent) 100%); color: #fff; box-shadow: 0 4px 10px rgba(45,45,45,.12), 0 12px 28px rgba(var(--rgb-primary), .22); }
a:not([class]) { color: var(--color-primary-dark); transition: var(--transition); }

/* ========== 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: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2.25rem; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

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

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2.25rem; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 2px 12px rgba(var(--rgb-accent), .35); }
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(ellipse at top right, rgba(var(--rgb-primary), .25), transparent 60%), linear-gradient(135deg, #2d2d2d 0%, #3c4a34 40%, var(--color-primary-dark) 100%); }
.card { border-left: 3px solid transparent; background: linear-gradient(150deg, rgba(255,255,255,.92), rgba(250,248,243,.55)) padding-box, linear-gradient(to bottom, var(--color-primary), var(--color-accent)) border-box; }

/* 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: 2.25rem; --space-card: 1.125rem; --space-gap: 0.875rem; }
    .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; }
}