/* CSSVariantEngine v3.0 — asymmetric-blocks + soft-shadows */
/* Palette: violet/amber | Radius: rounded | Shadow: soft multi-layer */
/* Spacing: compact | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-4","hero":"overlay","testimonials":"grid-3","partners":"scroll","faq":"with-sidebar","stats":"inline","cta":"full-bg"} */

:root {
    --color-primary: #6d28d9;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-surface: #f5f3ff;
    --color-text: #2e1065;
    --rgb-primary: 109,40,217;
    --rgb-accent: 245,158,11;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 6px rgba(109,40,217,0.06), 0 8px 16px -6px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 10px rgba(109,40,217,0.06), 0 20px 40px -12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(109,40,217,0.08), 0 32px 64px -16px rgba(0,0,0,0.16);
    --space-section: 2.25rem;
    --space-card: 1.1rem;
    --space-gap: 0.85rem;
    --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { background: var(--color-surface); color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { background: rgba(255,255,255,0.75); backdrop-filter: blur(12px); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); box-shadow: var(--shadow-sm); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); text-decoration-color: var(--color-accent); transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: #ede9fe; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); outline: 1px solid rgba(109,40,217,0.12); outline-offset: -1px; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); background: #ffedd5; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); outline: 1px solid rgba(245,158,11,0.15); outline-offset: -1px; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(120deg, #ede9fe, #fbcfe8); border-radius: 0 0 var(--radius-xl) var(--radius-xl); box-shadow: var(--shadow-lg); }
.hero-content { position: relative; z-index: 1; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: #fce7f3; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); outline: 1px solid rgba(236,72,153,0.15); outline-offset: -1px; }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2.4rem; overflow: hidden; background: #e0f2fe; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); animation: partnerScroll 30s linear infinite; }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2.4rem; background: #fef3c7; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); outline: 1px solid rgba(245,158,11,0.15); outline-offset: -1px; }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3.5rem; background: #ddd6fe; border-radius: var(--radius-xl); box-shadow: var(--shadow-sm); }

/* cta: full-bg */
.cta-section { background: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary), #a21caf); color: #fff; padding: 4rem 2rem; border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }

/* Page Layout: wide */
/* 超宽 */
.page-main { max-width: 1400px; margin: 0 auto; background: rgba(255,255,255,0.4); backdrop-filter: blur(8px); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { box-shadow: 0 2px 4px rgba(0,0,0,0.03), 0 8px 20px -6px rgba(109,40,217,0.12); }

/* 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; }
}