:root {
    --color-primary: #ff2e6d;
    --color-primary-dark: #b3003a;
    --color-accent: #2dd4bf;
    --color-surface: #f7fafc;
    --color-text: #0f172a;
    --rgb-primary: 255,46,109;
    --rgb-accent: 45,212,191;

    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 10px;

    --shadow-sm: 0 1px 0 rgba(2, 6, 23, .06);
    --shadow-md: 0 10px 24px rgba(2, 6, 23, .10), 0 2px 8px rgba(2, 6, 23, .06);
    --shadow-lg: 0 18px 44px rgba(2, 6, 23, .14), 0 6px 18px rgba(2, 6, 23, .08);

    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;

    --transition: 260ms cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1100px 500px at 15% -10%, rgba(255,46,109,.10), transparent 60%), radial-gradient(900px 420px at 85% 0%, rgba(45,212,191,.11), transparent 55%), var(--color-surface); }
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 1px 0 rgba(2, 6, 23, .10),
        0 10px 28px rgba(2, 6, 23, .10),
        0 2px 10px rgba(2, 6, 23, .06);
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
}
a:not([class]) { color: var(--color-primary); transition: color var(--transition), text-shadow var(--transition), filter var(--transition); }
a:not([class]):focus { outline: 2px solid rgba(45,212,191,.55); outline-offset: 3px; }

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

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

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* 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: var(--color-accent);
    text-shadow: 0 0 18px rgba(45,212,191,.35), 0 1px 0 rgba(0,0,0,.08);
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 18% 25%, rgba(255,46,109,.55), transparent 55%),
        radial-gradient(780px 360px at 85% 10%, rgba(45,212,191,.40), transparent 60%),
        linear-gradient(135deg, #ff2e6d 0%, #b3003a 52%, #0ea5e9 120%);
    filter: saturate(1.08) contrast(1.02);
}
.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(2, 6, 23, .10),
        0 14px 30px rgba(2, 6, 23, .12),
        0 3px 10px rgba(2, 6, 23, .06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255,255,255,.16);
}

/* 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; }
}