/* CSSVariantEngine v3.0 — app2-huatihuitiyu.com.cn */
/* Palette: teal-amber | Radius: soft | Shadow: glow */
/* Spacing: comfortable | Transition: smooth */
/* Section layouts: {"news":"grid-4","features":"grid-2","hero":"split","testimonials":"carousel","partners":"scroll","faq":"two-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #115e59;
    --color-accent: #f59e0b;
    --color-surface: #f4f6fb;
    --color-text: #1e293b;
    --rgb-primary: 15,118,110;
    --rgb-accent: 245,158,11;
    --radius-sm: 10px;
    --radius-md: 13px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent),.18), 0 2px 6px rgba(2,6,23,.06);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent),.4), 0 4px 20px rgba(2,6,23,.08);
    --shadow-lg: 0 0 36px rgba(var(--rgb-accent),.5), 0 8px 32px rgba(2,6,23,.1);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 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); }
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), inset 0 0 0 1px rgba(var(--rgb-accent),.22), inset 0 1px 0 rgba(255,255,255,.7); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, rgba(var(--rgb-accent),.14), rgba(255,255,255,.92)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 18px rgba(var(--rgb-accent),.28), 0 2px 6px rgba(2,6,23,.06); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 12px rgba(var(--rgb-accent),.25); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); --rgb-accent: 8,145,178; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); --rgb-accent: 225,29,72; }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; --rgb-accent: 245,158,11; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; --rgb-accent: 147,51,234; } 
.testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 24s linear infinite; --rgb-accent: 5,150,105; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); --rgb-accent: 217,70,239; }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; --rgb-accent: 249,115,22; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; --rgb-accent: 59,130,246; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 14px rgba(var(--rgb-accent),.4); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f172a 0%, #0f766e 55%, #f59e0b 130%); }
header, .header, .navbar { box-shadow: 0 0 18px rgba(var(--rgb-accent),.18), 0 1px 2px rgba(2,6,23,.05); }

/* 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; }
}