/* CSSVariantEngine v3.0 — mobile4-kaiyuan.com.cn */
/* Palette: teal-gold | Radius: rounded | Shadow: aurora */
/* Spacing: comfortable | Transition: smooth */
/* Section layouts: {"news":"featured-top","features":"grid-2","hero":"centered","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"grid-3","cta":"full-bg"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #134e4a;
    --color-accent: #f59e0b;
    --color-surface: #f0fdfa;
    --color-text: #0f172a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(15,23,42,.05), 0 3px 10px rgba(13,148,136,.06), 0 6px 20px rgba(245,158,11,.04);
    --shadow-md: 0 2px 4px rgba(15,23,42,.04), 0 8px 20px rgba(13,148,136,.08), 0 14px 36px rgba(245,158,11,.06);
    --shadow-lg: 0 4px 8px rgba(15,23,42,.05), 0 14px 30px rgba(13,148,136,.12), 0 28px 60px rgba(245,158,11,.08);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.55s 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: linear-gradient(180deg, #f8fafc 0%, var(--color-surface) 48%, #ccfbf1 100%);
    caret-color: var(--color-primary);
    accent-color: var(--color-accent);
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    text-shadow: 0 1px 2px rgba(15, 23, 42, .06);
}
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(145deg, #ffffff 0%, var(--color-surface) 100%) padding-box,
                linear-gradient(135deg, rgba(13,148,136,.32) 0%, rgba(245,158,11,.22) 50%, rgba(13,148,136,.32) 100%) border-box;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: 0 1px 2px rgba(15,23,42,.04), 0 4px 14px rgba(13,148,136,.10);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(var(--rgb-accent), .55);
}

/* ========== 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: grid-2 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--space-gap) * 1.5);
}

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

/* testimonials: masonry */
.testimonial-list {
    column-count: 2;
    column-gap: var(--space-gap);
}
.testimonial-list > * {
    break-inside: avoid;
    margin-bottom: 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, #14b8a6 0%, var(--color-primary) 30%, var(--color-primary-dark) 68%, #0f172a 100%);
    color: #f8fafc;
    padding: 4rem 2rem;
    box-shadow: 0 12px 40px rgba(13, 148, 136, .18);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    filter: saturate(1.06) brightness(1.02);
}
.card {
    border: 1px solid transparent;
}

/* 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; }
}