:root {
    --color-primary: #7048e8;
    --color-primary-dark: #3b1e8f;
    --color-accent: #12b8a6;
    --color-surface: #f5f7fc;
    --color-text: #1f2430;
    --color-sidebar: #252e3a;
    --rgb-primary: 112,72,232;
    --rgb-accent: 18,184,166;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 2px rgba(37,46,58,.06), 0 3px 12px rgba(var(--rgb-primary),.12);
    --shadow-md: 0 6px 14px rgba(37,46,58,.08), 0 14px 32px rgba(var(--rgb-primary),.18);
    --shadow-lg: 0 12px 26px rgba(37,46,58,.12), 0 30px 70px rgba(var(--rgb-primary),.24);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(.25,.8,.25,1);
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(165deg, #f5f7fc 0%, #eef1fb 52%, #e7ebfa 100%); caret-color: var(--color-primary); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-sidebar); text-shadow: 0 1px 0 rgba(255,255,255,.7), 0 2px 14px rgba(var(--rgb-primary),.16); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(255,255,255,.78) 0%, rgba(240,243,251,.42) 60%, rgba(231,235,250,.28) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(var(--rgb-primary),.08); padding: var(--space-card); transition: var(--transition); background: linear-gradient(160deg, #ffffff 0%, #f7f9ff 56%, #edf1fd 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 70%, #252e3a 100%); color: #f5f7fc; box-shadow: 0 1px 2px rgba(37,46,58,.14), 0 10px 26px rgba(var(--rgb-primary),.30); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

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

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

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

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; background: radial-gradient(circle at 50% 0%, rgba(var(--rgb-accent),.16) 0%, rgba(var(--rgb-primary),.10) 45%, rgba(255,255,255,0) 78%); }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 1px 10px rgba(var(--rgb-accent),.45); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #252e3a 0%, #3b1e8f 44%, #7048e8 76%, #12b8a6 100%); box-shadow: inset 0 -1px 0 rgba(var(--rgb-accent),.35), 0 18px 48px rgba(var(--rgb-primary),.22); }

/* 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; }
}