:root {
    --color-primary: #ff3b5c;
    --color-primary-dark: #b50f31;
    --color-accent: #00d4ff;
    --color-surface: #fff1f3;
    --color-text: #121826;
    --rgb-primary: 255,59,92;
    --rgb-accent: 0,212,255;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --shadow-sm: 0 1px 0 rgba(18,24,38,.08);
    --shadow-md: 0 2px 0 rgba(18,24,38,.06), 0 6px 18px rgba(18,24,38,.08);
    --shadow-lg: 0 1px 0 rgba(18,24,38,.08), 0 10px 26px rgba(18,24,38,.14), 0 2px 8px rgba(255,59,92,.18);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 140ms cubic-bezier(.2,.9,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.6;
    --color-border: rgba(18,24,38,.14);
    --color-border-strong: rgba(18,24,38,.26);
    --shadow-inset: inset 0 0 0 1px rgba(18,24,38,.10);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); }
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-xl);
    box-shadow: 0 0 0 1px rgba(18,24,38,.10), 0 2px 0 rgba(18,24,38,.06), 0 12px 30px rgba(18,24,38,.08);
    padding: var(--space-card);
    transition: box-shadow 140ms cubic-bezier(.2,.9,.2,1), transform 140ms cubic-bezier(.2,.9,.2,1), background-color 180ms cubic-bezier(.2,.9,.2,1);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: background-color 160ms cubic-bezier(.2,.9,.2,1), color 160ms cubic-bezier(.2,.9,.2,1), border-color 160ms cubic-bezier(.2,.9,.2,1), transform 140ms cubic-bezier(.2,.9,.2,1);
}
a:not([class]) {
    color: var(--color-primary);
    transition: color 140ms cubic-bezier(.2,.9,.2,1), text-shadow 180ms cubic-bezier(.2,.9,.2,1);
    text-shadow: 0 0 0 rgba(0,0,0,0);
}

/* ========== 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-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 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; }
                .hero-content { position: relative; z-index: 1; }

/* 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: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section {
    background:
        radial-gradient(1200px 420px at 10% 0%, rgba(0,212,255,.30), rgba(0,0,0,0) 55%),
        radial-gradient(900px 360px at 90% 20%, rgba(255,59,92,.35), rgba(0,0,0,0) 60%),
        linear-gradient(135deg, #ff3b5c 0%, #7a0b2a 70%, #3a0a1a 100%);
    color: #f7fbff;
    padding: 4rem 2rem;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.10), 0 26px 70px rgba(255,59,92,.18);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-3px);
    box-shadow:
        0 0 0 1px rgba(18,24,38,.16),
        0 2px 0 rgba(18,24,38,.08),
        0 18px 44px rgba(18,24,38,.12),
        0 0 0 6px rgba(255,59,92,.10);
}
a:not([class]):hover { color: #00b8e6; text-shadow: 0 0 18px rgba(0,212,255,.22); }

.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 12% 18%, rgba(0,212,255,.25), rgba(0,0,0,0) 55%),
        radial-gradient(700px 380px at 88% 26%, rgba(255,59,92,.35), rgba(0,0,0,0) 60%),
        linear-gradient(135deg, #ff3b5c 0%, #6d0c26 48%, #001b2e 100%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
}

.card { border-left: 3px solid rgba(255,59,92,.95); }

header, .header, .navbar { background: transparent; }

/* 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; --radius-xl: 10px; --transition: 120ms cubic-bezier(.2,.9,.2,1); }
    .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; }
}