/* CSSVariantEngine v3.0 — live3-bandaotiyu.com.cn */
/* Palette: terracotta-sage | Radius: soft | Shadow: warm-layered */
/* Spacing: vertical-flow | Transition: ease-out-quint */
/* Section layouts: {"news":"grid-4","features":"grid-4","hero":"left-aligned","testimonials":"stacked","partners":"grid-6","faq":"single-column","stats":"grid-3","cta":"centered"} */

:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a35c3d;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(45,45,45,.05), 0 2px 8px rgba(196,123,90,.06);
    --shadow-md: 0 4px 12px rgba(45,45,45,.06), 0 16px 32px rgba(196,123,90,.10);
    --shadow-lg: 0 8px 20px rgba(45,45,45,.07), 0 28px 56px rgba(196,123,90,.14);
    --space-section: 3.5rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
    accent-color: #87a878;
    caret-color: #c47b5a;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(ellipse at top left, rgba(135,168,120,.10), transparent 55%),
        radial-gradient(ellipse at bottom right, rgba(196,123,90,.06), transparent 50%),
        var(--color-surface);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background-image: radial-gradient(ellipse at 50% 0%, rgba(135,168,120,.07), transparent 70%);
}
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-card);
    transition: var(--transition);
    border: 1px solid transparent;
    background:
        linear-gradient(145deg, #fffdf9, #f6f1e8) padding-box,
        linear-gradient(135deg, rgba(196,123,90,.45), rgba(135,168,120,.45)) border-box;
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #c47b5a 0%, #b56745 50%, #a35c3d 100%);
    color: #fffdf9;
    box-shadow: 0 4px 14px rgba(196,123,90,.28), 0 2px 4px rgba(45,45,45,.08);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(196,123,90,.4);
}

/* ========== 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) * 0.85); }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.05); }

/* 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: calc(var(--space-gap) * 1.1); max-width: 720px; margin: 0 auto; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: calc(var(--space-gap) * 1.05); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--space-gap) * 1.1); text-align: center; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

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

/* 条件性装饰 */
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 1px 8px rgba(135,168,120,.35);
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(circle at 15% 20%, rgba(255,253,249,.22), transparent 45%),
        radial-gradient(circle at 85% 80%, rgba(135,168,120,.28), transparent 50%),
        linear-gradient(135deg, #b06a4a 0%, #c47b5a 35%, #a35c3d 70%, #7d6a52 100%);
}
.card { border: 1px solid transparent; }

/* 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; }
}