:root {
    --color-primary: #5b3cc4;
    --color-primary-dark: #39218f;
    --color-accent: #d4af37;
    --color-surface: #f7f4ff;
    --color-text: #1a1730;
    --rgb-primary: 91,60,196;
    --rgb-accent: 212,175,55;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-xl: 28px;
    --shadow-sm: 0 8px 18px rgba(26, 23, 48, .08), 0 2px 6px rgba(91, 60, 196, .10);
    --shadow-md: 0 14px 34px rgba(26, 23, 48, .10), 0 4px 14px rgba(91, 60, 196, .12), 0 0 0 1px rgba(255,255,255,.5) inset;
    --shadow-lg: 0 22px 52px rgba(15, 15, 26, .16), 0 8px 24px rgba(91, 60, 196, .16), 0 1px 0 rgba(255,255,255,.45) inset;
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at top, rgba(212, 175, 55, .10) 0%, rgba(91, 60, 196, .08) 28%, #0f0f1a 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #f8f5ff; text-shadow: 0 2px 16px rgba(91, 60, 196, .18); }
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); background: linear-gradient(180deg, rgba(255,255,255,.96) 0%, rgba(245,240,255,.92) 100%); border-color: rgba(91, 60, 196, .14); border-style: solid; backdrop-filter: blur(10px); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 10px 24px rgba(91, 60, 196, .18), 0 2px 8px rgba(15, 15, 26, .12); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-color: rgba(212, 175, 55, .45); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

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

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(180deg, rgba(255,255,255,.05) 0%, rgba(91, 60, 196, .10) 100%); } .hero-content { max-width: 560px; }

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

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

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

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #2a1b5e 0%, #5b3cc4 52%, #d4af37 100%); color: #fffdf7; padding: 4rem 2rem; box-shadow: 0 24px 50px rgba(15, 15, 26, .28), inset 0 1px 0 rgba(255,255,255,.18); border-radius: var(--radius-xl); }

/* 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: #f2d57a; text-shadow: 0 0 12px rgba(212, 175, 55, .28); }
.card { border: 1px solid rgba(var(--rgb-primary), .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; }
}