/* CSSVariantEngine v3.0 — zh-jisudianjing.gd.cn */
/* Palette: teal-cream | Radius: soft rounded | Shadow: multi-layer gradient */
/* Spacing: generous | Transition: long smooth */
/* Section layouts: {"news":"grid-4","features":"grid-3","hero":"split","testimonials":"carousel","partners":"grid-4","faq":"two-column","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0d5d57;
    --color-accent: #2dd4bf;
    --color-surface: #fef7ed;
    --color-text: #1e293b;
    --rgb-primary: 15, 118, 110;
    --rgb-accent: 45, 212, 191;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 3px 6px rgba(var(--rgb-primary), 0.08), 0 1px 2px rgba(30, 41, 59, 0.05);
    --shadow-md: 0 10px 24px rgba(var(--rgb-primary), 0.12), 0 4px 8px rgba(30, 41, 59, 0.07);
    --shadow-lg: 0 24px 48px rgba(var(--rgb-primary), 0.18), 0 8px 16px rgba(30, 41, 59, 0.1);
    --space-section: 5rem;
    --space-card: 1.1rem;
    --space-gap: 0.85rem;
    --transition: 0.55s cubic-bezier(0.25, 1, 0.5, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #ffffff 0%, #fef7ed 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-image: linear-gradient(0deg, transparent 0%, rgba(var(--rgb-primary), 0.03) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #ffffff 0%, #f8fffd 100%); border-left: 3px solid; border-image: linear-gradient(180deg, var(--color-primary), var(--color-accent)) 1; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); color: #ffffff; border: 2px solid transparent; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-thickness: 2px; text-underline-offset: 3px; }

/* ========== 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); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

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

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

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

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: 0 32px 64px rgba(var(--rgb-primary), 0.22), 0 14px 28px rgba(30, 41, 59, 0.13); background: linear-gradient(145deg, #f0fffc 0%, #e6fff9 100%); }
a:not([class]):hover { color: var(--color-accent); }
section:nth-child(even) { background-image: linear-gradient(180deg, #0f766e 0%, #0d9488 100%); color: #ffffff; }
section:nth-child(even) a:not([class]) { color: #a7f3d0; }

/* 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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.85rem; }
    .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; }
}