/* CSSVariantEngine v3.0 — global-huatihuitiyu.com.cn */
/* Palette: teal-cream | Radius: compact | Shadow: layered-subtle */
/* Spacing: tight | Transition: snappy */
/* Section layouts: {"news":"masonry-2","features":"grid-4","hero":"left-aligned","testimonials":"carousel","partners":"centered","faq":"with-sidebar","stats":"grid-4","cta":"centered"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #134e4a;
    --color-accent: #f59e0b;
    --color-surface: #f8f3e9;
    --color-text: #1e293b;
    --rgb-primary: 15,118,110;
    --rgb-accent: 245,158,11;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 5px;
    --radius-xl: 7px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 118, 110, 0.06);
    --shadow-md: 0 2px 4px -1px rgba(15, 23, 42, 0.05), 0 4px 6px -1px rgba(15, 118, 110, 0.06);
    --shadow-lg: 0 4px 6px -2px rgba(15, 23, 42, 0.04), 0 10px 15px -3px rgba(15, 118, 110, 0.08);
    --space-section: 3.5rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background-color: #ffffff;
}

h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
}

section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background-color: var(--color-surface);
    background-image: repeating-linear-gradient(
        180deg,
        transparent 0,
        transparent 63px,
        rgba(15, 23, 42, 0.025) 63px,
        rgba(15, 23, 42, 0.025) 64px
    );
}

.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    background-color: #ffffff;
    color: var(--color-text);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
}

a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid {
    column-count: 2;
    column-gap: var(--space-gap);
}

.news-grid .card {
    break-inside: avoid;
    margin-bottom: var(--space-gap);
}

/* features: grid-4 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-gap);
}

/* hero: left-aligned */
.hero-content {
    text-align: left;
    max-width: 600px;
}

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

.testimonial-list > * {
    flex: 0 0 100%;
}

/* partners: centered */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

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

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

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background: linear-gradient(135deg, #134e4a 0%, #0f766e 60%, #0d9488 100%);
    color: #ffffff;
}

.card {
    border: 1px solid rgba(15, 23, 42, 0.05);
}

/* 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: 1.75rem;
        --space-card: 0.875rem;
        --space-gap: 0.625rem;
    }
    .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;
    }
}