/* CSSVariantEngine v3.0 — hcyzcn.com */
/* Palette: coral-teal | Radius: soft-round | Shadow: layered-gradient */
/* Spacing: balanced | Transition: gradient-flow */
/* Section layouts: {"news":"featured-left","features":"grid-4","hero":"overlay","testimonials":"stacked","partners":"centered","faq":"single-column","stats":"big-number","cta":"centered"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #f97316;
    --color-surface: #f0fdfa;
    --color-text: #134e4a;
    --rgb-primary: 13,148,136;
    --rgb-accent: 249,115,22;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 3px rgba(13,148,136,.14), 0 4px 12px rgba(249,115,22,.06);
    --shadow-md: 0 2px 6px rgba(13,148,136,.16), 0 8px 24px rgba(249,115,22,.08), 0 0 0 1px rgba(13,148,136,.04);
    --shadow-lg: 0 4px 12px rgba(13,148,136,.18), 0 16px 40px rgba(249,115,22,.12), 0 0 0 1px rgba(13,148,136,.06);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(160deg, #f0fdfa 0%, #ecfeff 40%, #fff7ed 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); background: linear-gradient(135deg, #0f766e 0%, #0d9488 50%, #f97316 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(240,253,250,.6) 0%, rgba(255,247,237,.4) 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%, #f0fdfa 55%, #fff7ed 100%); border: 1px solid transparent; background-clip: padding-box; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #0d9488 0%, #14b8a6 50%, #f97316 100%); color: #ffffff; border: none; box-shadow: 0 2px 8px rgba(13,148,136,.25), 0 6px 20px rgba(249,115,22,.15); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(13,148,136,.4); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(135deg, #0f766e 0%, #0d9488 30%, #14b8a6 60%, #f97316 100%); }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

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

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* 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, #0d9488 0%, #14b8a6 40%, #f97316 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: linear-gradient(160deg, rgba(240,253,250,.8) 0%, rgba(255,247,237,.6) 100%); border-radius: var(--radius-xl); padding: 2rem; box-shadow: var(--shadow-sm); }

/* 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); background: linear-gradient(145deg, #ffffff 0%, #ecfeff 40%, #fff7ed 100%); }
a:not([class]):hover { color: var(--color-accent); text-decoration-color: rgba(249,115,22,.6); }
.card { border: 1px solid rgba(13,148,136, .10); border-image: linear-gradient(135deg, rgba(13,148,136,.15), rgba(249,115,22,.10)) 1; }
header, .header, .navbar { box-shadow: 0 1px 4px rgba(13,148,136,.10), 0 4px 16px rgba(249,115,22,.06); background: linear-gradient(180deg, #ffffff 0%, #f0fdfa 100%); }

/* 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; }
}