/* CSSVariantEngine v3.0 — pc2-kaiyuantiyu.com.cn */
/* Palette: teal-mint | Radius: medium | Shadow: glow */
/* Spacing: symmetric | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"centered","hero":"split","testimonials":"grid-3","partners":"grid-6","faq":"two-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0f3d3e;
    --color-primary-dark: #062a2b;
    --color-accent: #2dd4bf;
    --color-surface: #f0fdfa;
    --color-text: #0b2e2c;
    --rgb-primary: 15,61,62;
    --rgb-accent: 45,212,191;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-sm: 0 2px 8px rgba(15,61,62,.08), 0 0 16px rgba(45,212,191,.12);
    --shadow-md: 0 10px 24px rgba(15,61,62,.12), 0 0 24px rgba(45,212,191,.16);
    --shadow-lg: 0 20px 48px rgba(15,61,62,.16), 0 0 40px rgba(45,212,191,.24);
    --shadow-glow: 0 8px 24px rgba(15,61,62,.14), 0 0 32px rgba(45,212,191,.5);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.875rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}

/* 基础覆盖 */
body { background: var(--color-surface); color: var(--color-text); line-height: var(--body-line-height); }
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); padding: var(--space-card); transition: var(--transition); animation: glowPulse 6s ease-in-out infinite; }
.card:hover, [class*="card"]:hover { animation: none; box-shadow: var(--shadow-glow); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 0 16px rgba(var(--rgb-accent), .15); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 24px rgba(var(--rgb-accent), .45); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-accent), .35); }

/* ========== 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: 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: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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, var(--color-primary), var(--color-primary-dark)); color: #f0fdfa; padding: 4rem 2rem; box-shadow: inset 0 0 48px rgba(var(--rgb-accent), .12); }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 12px rgba(var(--rgb-accent), .45); }
.card { border: 1px solid rgba(var(--rgb-accent), .18); }

@keyframes glowPulse {
    0%, 100% { box-shadow: var(--shadow-md); }
    50% { box-shadow: var(--shadow-glow); }
}

/* 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: 0.875rem; }
    .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; }
}