:root {
    --color-primary: #b8860b;
    --color-primary-dark: #6b3fa0;
    --color-accent: #d4af37;
    --color-surface: #1a1a2e;
    --color-text: #e8e0d0;
    --rgb-primary: 184,134,11;
    --rgb-accent: 212,175,55;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
    --shadow-md: 0 2px 6px rgba(0,0,0,.5), 0 0 0 1px rgba(212,175,55,.1);
    --shadow-lg: 0 4px 12px rgba(0,0,0,.6), 0 0 0 1px rgba(212,175,55,.15);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1rem;
    --transition: 0.15s cubic-bezier(.4,0,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #0f0f1a; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #f0e8d0; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-color: #0f0f1a; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, #1e1e38, #16162a); border: 1px solid rgba(212,175,55,.12); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, #b8860b, #d4af37); color: #0f0f1a; border: none; box-shadow: 0 2px 8px rgba(212,175,55,.3); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 4px 16px rgba(212,175,55,.5); transform: translateY(-1px); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-color: rgba(212,175,55,.4); }
a:not([class]):hover { color: #f0d060; text-decoration-color: #f0d060; }

/* ========== 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-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* 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, #0f0f1a 0%, #1a1a2e 50%, #0f0f1a 100%); }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }
                .testimonial-list .card { background: linear-gradient(145deg, #1e1e38, #16162a); border-left: 3px solid #d4af37; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card { border-left: 2px solid #b8860b; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { background: linear-gradient(180deg, #1e1e38, #16162a); border-top: 2px solid #d4af37; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-inner .btn { background: linear-gradient(135deg, #d4af37, #b8860b); box-shadow: 0 4px 20px rgba(212,175,55,.4); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f0f1a, #1a1a2e, #0f0f1a); }
header, .header, .navbar { box-shadow: 0 2px 12px rgba(0,0,0,.5), 0 0 0 1px rgba(212,175,55,.08); background: #0f0f1a; border-bottom: 1px solid rgba(212,175,55,.12); }

/* 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; }
}