/* CSSVariantEngine v3.0 — page-hth-world.com.cn */
/* Palette: indigo-cream-teal | Radius: soft-rounded | Shadow: halo-glow */
/* Spacing: comfortable | Transition: fluid */
/* Section layouts: {"news":"list-view","features":"horizontal","hero":"split","testimonials":"carousel","partners":"centered","faq":"with-sidebar","stats":"grid-3","cta":"split"} */

:root {
    --color-primary: #4f46e5;
    --color-primary-dark: #312e81;
    --color-accent: #2dd4bf;
    --color-surface: #faf8f4;
    --color-surface-raised: #ffffff;
    --color-text: #1f2337;
    --rgb-primary: 79,70,229;
    --rgb-accent: 45,212,191;
    --strip-dark: #1e1b4b;
    --strip-cream: #faf8f4;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(45, 212, 191, 0.18);
    --shadow-md: 0 0 24px rgba(45, 212, 191, 0.28), 0 6px 20px rgba(30, 27, 75, 0.08);
    --shadow-lg: 0 0 40px rgba(45, 212, 191, 0.45), 0 12px 32px rgba(30, 27, 75, 0.12);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { background-color: #ffffff; color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { color: #151a3a; }
section, .section { background-color: var(--strip-cream); padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { background-color: var(--color-surface-raised); border-radius: var(--radius-lg); box-shadow: inset 0 3px 0 rgba(var(--rgb-accent), 0.7), var(--shadow-md); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); box-shadow: 0 0 18px rgba(var(--rgb-accent), 0.2); transition: var(--transition); }
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; border-radius: var(--radius-lg); }

/* 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; border-radius: var(--radius-md); background-color: var(--color-surface-raised); box-shadow: var(--shadow-md); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 14px rgba(var(--rgb-accent), 0.5); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #1e1b4b 0%, #312e81 45%, #4f46e5 100%); color: #faf8f4; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.08), inset 0 0 80px rgba(45, 212, 191, 0.08); }
.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar { background-color: rgba(250, 248, 244, 0.85); backdrop-filter: blur(14px); box-shadow: 0 0 20px rgba(45, 212, 191, 0.15), 0 4px 16px rgba(30, 27, 75, 0.06); }

/* 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; }
}