:root {
    --color-primary: #7c2d12;
    --color-primary-dark: #431407;
    --color-accent: #fbbf24;
    --color-surface: #fff7ed;
    --color-text: #1c1917;
    --rgb-primary: 124,45,18;
    --rgb-accent: 251,191,36;
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(251,191,36,.25);
    --shadow-md: 0 0 18px rgba(251,191,36,.3), 0 4px 14px rgba(67,20,7,.12);
    --shadow-lg: 0 0 28px rgba(251,191,36,.45), 0 8px 24px rgba(67,20,7,.18);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.3s cubic-bezier(.4,0,.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(135deg, #fff7ed 0%, #ffedd5 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); border: 1px solid rgba(124,45,18,.15); background: rgba(255,247,237,.9); backdrop-filter: blur(4px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff7ed; box-shadow: 0 0 16px rgba(251,191,36,.35); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(251,191,36,.6); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 8px rgba(251,191,36,.3); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, #b45309 100%); }
                .hero-content { position: relative; z-index: 1; color: #fff7ed; text-shadow: 0 0 24px rgba(251,191,36,.4); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.testimonial-list .card { border-color: rgba(251,191,36,.3); background: linear-gradient(145deg, #fff7ed, #ffedd5); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                .partner-grid .card { border-color: rgba(124,45,18,.2); }
                @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: 2rem; }
                .faq-wrapper .card { border-left: 4px solid var(--color-accent); }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark)); color: #fff7ed; border-color: rgba(251,191,36,.3); }
.stats-grid .card:hover { box-shadow: 0 0 36px rgba(251,191,36,.55); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.cta-inner { background: linear-gradient(135deg, rgba(124,45,18,.1), rgba(251,191,36,.15)); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid rgba(251,191,36,.25); }

/* 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(-4px); box-shadow: 0 0 32px rgba(251,191,36,.6), 0 8px 20px rgba(124,45,18,.2); animation: glowPulse 2s ease-in-out infinite; }
@keyframes glowPulse { 0%, 100% { box-shadow: 0 0 32px rgba(251,191,36,.6); } 50% { box-shadow: 0 0 44px rgba(251,191,36,.75); } }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 12px rgba(251,191,36,.6); }
header, .header, .navbar { box-shadow: 0 0 20px rgba(251,191,36,.25), 0 4px 12px rgba(67,20,7,.1); background: rgba(255,247,237,.95); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(251,191,36,.2); }

/* 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; }
}