/* CSSVariantEngine v3.0 — zh-wendingh5.org.cn */
/* Palette: teal-violet | Radius: fully rounded | Shadow: soft multi-layer */
/* Spacing: mixed tight-wide | Transition: smooth 0.4s */
/* Section layouts: {"news":"list-view","features":"horizontal","hero":"split","testimonials":"masonry","partners":"grid-6","faq":"two-column","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #0d5d57;
    --color-accent: #7c3aed;
    --color-surface: #f0fdfa;
    --color-text: #13182b;
    --rgb-primary: 15, 118, 110;
    --rgb-accent: 124, 58, 237;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 6px rgba(15, 118, 110, 0.06), 0 6px 16px rgba(15, 118, 110, 0.03);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05), 0 18px 36px -8px rgba(124, 58, 237, 0.1);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.06), 0 24px 48px -12px rgba(15, 118, 110, 0.12);
    --space-section: 2.4rem;
    --space-card: 1.1rem;
    --space-gap: 0.8rem;
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
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: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: white; border: none; }
a:not([class]) { color: var(--color-accent); 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; background: linear-gradient(90deg, #f8fafc 0%, #ffffff 100%); }

/* features: horizontal */
/* 水平滚动 */
.feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; background: #fef7ff; }

/* hero: split */
/* 左文右图 */
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2.2rem; align-items: center; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); background: #ecfdf5; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; background: #f8fafc; padding: 1.5rem; border-radius: var(--radius-xl); }

/* 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: 2.2rem; }
.stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%); color: #fff; padding: 4rem 2rem; box-shadow: var(--shadow-lg); }

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

/* 条件性装饰 */
.card { border: 2px solid rgba(var(--rgb-accent), 0.18); }
header, .header, .navbar { box-shadow: 0 4px 12px rgba(15, 118, 110, 0.07), 0 1px 3px rgba(0, 0, 0, 0.04); background-color: rgba(255,255,255,0.92); backdrop-filter: blur(8px); }

/* 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: 2.4rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}