/* CSSVariantEngine v3.0 — hth-intl2.com.cn */
/* Palette: editorial | Radius: rounded | Shadow: pillowy */
/* Spacing: airy | Transition: smooth-ease */
/* Section layouts: {"news":"featured-top","features":"grid-3","hero":"left-aligned","testimonials":"stacked","partners":"grid-4","faq":"two-column","stats":"inline","cta":"card-style"} */

:root {
    --color-primary: #c44536;
    --color-primary-dark: #7f2a20;
    --color-accent: #6b705c;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 107,112,92;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(60,45,30,0.04), 0 1px 2px rgba(60,45,30,0.03);
    --shadow-md: 0 6px 16px rgba(60,45,30,0.05), 0 16px 40px rgba(60,45,30,0.07), 0 2px 4px rgba(60,45,30,0.03);
    --shadow-lg: 0 10px 28px rgba(60,45,30,0.08), 0 32px 72px rgba(60,45,30,0.12), 0 4px 8px rgba(60,45,30,0.04);
    --space-section: 3.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.2rem;
    --transition: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body {
    background: linear-gradient(180deg, #faf6ee 0%, var(--color-surface) 100%);
    color: var(--color-text);
    line-height: var(--body-line-height);
    caret-color: var(--color-primary);
    accent-color: var(--color-primary);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-text); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    background: #fffdf8;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.8), inset 0 -1px 0 rgba(60,45,30,0.04);
    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); transition: var(--transition); }

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

/* news: featured-top */
/* 首篇横跨全宽 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.news-grid > *:first-child { grid-column: span 3; }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* 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: 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: 3.5rem; }

/* cta: card-style */
.cta-inner {
    background: linear-gradient(135deg, #f7f2e7 0%, #eee5d4 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,0.6), inset 0 -1px 0 rgba(60,45,30,0.05);
}

/* 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), inset 0 1px 0 rgba(255,255,255,0.8), inset 0 -1px 0 rgba(60,45,30,0.04); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-accent); }

/* 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: 2.25rem; --space-card: 1.2rem; --space-gap: 0.9rem; }
    .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; }
}