/* CSSVariantEngine v3.0 — k1guanwang-qq.com.cn */
/* Palette: warm minimal terracotta | Radius: soft rounded | Shadow: warm multi-layer */
/* Spacing: generous vertical | Transition: smooth long */
/* Section layouts: {"news":"grid-4","features":"horizontal","hero":"overlay","testimonials":"carousel","partners":"grid-4","faq":"two-column","stats":"inline","cta":"split"} */

:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a86245;
    --color-accent: #d9a388;
    --color-surface: linear-gradient(135deg, #faf8f3 0%, #f3efe7 100%);
    --color-text: #2d2d2d;
    --rgb-primary: 196, 123, 90;
    --rgb-accent: 217, 163, 136;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 10px rgba(196, 123, 90, 0.07);
    --shadow-md: 0 8px 28px rgba(45, 45, 45, 0.05), 0 3px 12px rgba(196, 123, 90, 0.04);
    --shadow-lg: 0 18px 52px rgba(45, 45, 45, 0.07), 0 7px 22px rgba(196, 123, 90, 0.06);
    --space-section: 4rem;
    --space-card: 1.75rem;
    --space-gap: 1.75rem;
    --transition: 0.5s cubic-bezier(0.4, 0, 0.2, 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, #faf8f3 0%, #f7f2eb 50%, #faf8f3 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { 
    padding-top: var(--space-section); 
    padding-bottom: var(--space-section); 
    background: linear-gradient(180deg, transparent 0%, rgba(255,255,255,0.4) 100%);
}
.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%, #f8f5ee 100%);
    border: 1px solid transparent;
    border-image: linear-gradient(135deg, rgba(196, 123, 90, 0.18) 0%, rgba(135, 168, 120, 0.12) 100%) 1;
}
.btn, button[class*="btn"], a[class*="btn"] { 
    border-radius: var(--radius-md); 
    transition: var(--transition); 
    background: linear-gradient(135deg, #c47b5a 0%, #d48c6b 50%, #c47b5a 100%);
    color: #ffffff;
    border: none;
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition); 
    text-decoration: none;
    border-bottom: 2px solid rgba(196, 123, 90, 0.3);
}
a:not([class]):hover {
    border-bottom-color: var(--color-primary);
}

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

/* news: grid-4 */
/* 四列紧凑网格 */
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* 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; }

/* 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, rgba(250, 248, 243, 0.92) 0%, rgba(243, 239, 231, 0.88) 100%);
}
.hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; } 
.testimonial-list > * { flex: 0 0 100%; }

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

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

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3rem; }

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

/* Page Layout: narrow centered vertical flow */
.page-main { max-width: 760px; margin: 0 auto; }

/* 条件性装饰 */

/* 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; }
}