/* CSSVariantEngine v3.0 — leqiudianjing.org.cn */
/* Palette: editorial-red | Radius: soft-generous | Shadow: multi-layer gradient-tinted */
/* Spacing: generous editorial | Transition: smooth long-form */
/* Section layouts: {"news":"list-view","features":"centered","hero":"minimal","testimonials":"stacked","partners":"grid-4","faq":"with-sidebar","stats":"grid-3","cta":"card-style"} */

:root {
    --color-primary: #c44536;
    --color-primary-dark: #9b3629;
    --color-accent: #6b705c;
    --color-surface: linear-gradient(135deg, #f5f1e8 0%, #ebe5d8 45%, #f0eadf 100%);
    --color-text: #1a1a1a;
    --rgb-primary: 196, 69, 54;
    --rgb-accent: 107, 112, 92;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 4px rgba(26,26,26,0.06), 0 1px 2px rgba(196,69,54,0.04);
    --shadow-md: 0 8px 16px rgba(26,26,26,0.08), 0 4px 8px rgba(107,112,92,0.06);
    --shadow-lg: 0 16px 32px rgba(26,26,26,0.12), 0 8px 16px rgba(196,69,54,0.08), 0 2px 4px rgba(26,26,26,0.04);
    --space-section: 4.5rem;
    --space-card: 1.75rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #f5f1e8 0%, #f0eadf 70%, #e9e2d3 100%);
}
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: linear-gradient(145deg, #ffffff 0%, #f8f5ef 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition);
    background-image: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fffaf7;
}
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: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

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

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* 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: card-style */
.cta-inner { 
    background: radial-gradient(circle at 30% 20%, #c95547 0%, #a3392d 55%, #8a2f25 100%); 
    border-radius: var(--radius-xl); 
    padding: 3rem; 
    text-align: center; 
    color: #fffaf7;
}

/* Page Layout: narrow-centered */
/* 窄版居中 */
.page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card { 
    border: 1px solid transparent;
    border-image: linear-gradient(90deg, rgba(196,69,54,0.15), rgba(107,112,92,0.15), rgba(196,69,54,0.15)) 1;
}
header, .header, .navbar { 
    background: linear-gradient(180deg, rgba(245,241,232,0.95) 0%, rgba(245,241,232,0.7) 100%);
    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: 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; }
}