/* CSSVariantEngine v3.0 — lepaidianjing.org.cn */
/* Palette: airy-teal | Radius: pillowy | Shadow: soft-diffused */
/* Spacing: generous | Transition: smooth-ease */
/* Section layouts: {"news":"list-view","features":"grid-3","hero":"overlay","testimonials":"grid-3","partners":"centered","faq":"two-column","stats":"grid-4","cta":"full-bg"} */

:root {
    --color-primary: #0d9488;
    --color-primary-dark: #0f766e;
    --color-accent: #f59e0b;
    --color-surface: #fffbeb;
    --color-text: #1f2937;
    --rgb-primary: 13,148,136;
    --rgb-accent: 245,158,11;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 24px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(13,148,136,0.08), 0 1px 3px rgba(31,41,55,0.04);
    --shadow-md: 0 8px 24px rgba(13,148,136,0.12), 0 4px 12px rgba(31,41,55,0.06);
    --shadow-lg: 0 16px 48px rgba(13,148,136,0.15), 0 8px 24px rgba(31,41,55,0.08);
    --space-section: 4rem;
    --space-card: 2.5rem;
    --space-gap: 2.5rem;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

/* 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); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: var(--color-surface); border: 1px solid rgba(var(--rgb-primary), 0.08); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-primary); color: white; box-shadow: var(--shadow-sm); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { background-color: var(--color-primary-dark); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: list-view */
/* 列表模式 (图左文右) */
.news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
.news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 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; }
.hero-content { position: relative; z-index: 1; }

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

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

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

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

/* cta: full-bg */
.cta-section { background: linear-gradient(90deg, #78350f, #92400e, #b45309); color: #fffbeb; padding: 5rem 2rem; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-decoration-thickness: 2px; }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0d9488, #0f766e, #047857); }
section:nth-child(even) { background-color: #fffbeb; }
section:nth-child(odd):not(:first-of-type):not(.cta-section) { background-color: #ffffff; }
.card { border-left: 4px solid var(--color-accent); }
header, .header, .navbar { background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px); }

/* 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: 3rem; --space-card: 1.75rem; --space-gap: 2rem; }
    .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; }
}