:root {
    --color-primary: #6f4bd8;
    --color-primary-dark: #2b1f5c;
    --color-accent: #d8b45f;
    --color-surface: #f7f2e8;
    --color-text: #19162b;
    --rgb-primary: 111,75,216;
    --rgb-accent: 216,180,95;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --shadow-sm: 0 6px 14px rgba(15,15,26,.08), 0 18px 34px -18px rgba(111,75,216,.28);
    --shadow-md: 0 8px 18px rgba(15,15,26,.07), 0 24px 48px -18px rgba(43,31,92,.18), 0 2px 0 rgba(216,180,95,.18);
    --shadow-lg: 0 14px 30px rgba(15,15,26,.08), 0 34px 70px -24px rgba(43,31,92,.22), 0 1px 0 rgba(255,255,255,.45) inset;
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.42s ease;
    --heading-weight: 800;
    --body-line-height: 1.7;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at top, rgba(216,180,95,.18) 0%, rgba(216,180,95,0) 24%), linear-gradient(180deg, #0f0f1a 0%, #161327 18%, #f7f2e8 18.1%, #f4efe3 100%); caret-color: var(--color-accent); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #140f29; text-shadow: 0 1px 0 rgba(255,255,255,.7), 0 10px 24px rgba(43,31,92,.08); }
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(247,242,232,.94) 100%); border-color: rgba(111,75,216,.16); border-style: solid; backdrop-filter: blur(10px); filter: saturate(1.02); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 0 10px 24px -14px rgba(43,31,92,.45), 0 1px 0 rgba(255,255,255,.35) inset; border-color: rgba(216,180,95,.55); border-style: solid; background: linear-gradient(135deg, #6f4bd8 0%, #4c338f 100%); color: #fff8eb; text-shadow: 0 1px 2px rgba(15,15,26,.25); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(216,180,95,.7); }

/* ========== 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) * 0.8); }

/* 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; box-shadow: inset 0 -40px 80px rgba(15,15,26,.24); }
                .hero-content { position: relative; z-index: 1; color: #fff8ee; text-shadow: 0 2px 10px rgba(15,15,26,.35), 0 18px 42px rgba(15,15,26,.28); }

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

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #1f1740 0%, #6f4bd8 58%, #d8b45f 100%); color: #fff9ef; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 18px 40px -22px rgba(15,15,26,.42); }

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0f0f1a 0%, #261b4f 42%, #6f4bd8 72%, #d8b45f 100%); }
.card { border-left: 3px solid var(--color-accent); outline: 1px solid rgba(111,75,216,.08); }
header, .header, .navbar { background: linear-gradient(180deg, rgba(15,15,26,.88) 0%, rgba(15,15,26,.52) 100%); backdrop-filter: blur(14px); box-shadow: 0 10px 28px -18px rgba(15,15,26,.55); border-color: rgba(216,180,95,.16); border-style: solid; }

/* 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; }
}