:root {
    --color-primary: #ff3d6e;
    --color-primary-dark: #a10f3a;
    --color-accent: #7c3aed;
    --color-surface: #f5f3ff;
    --color-text: #2a0a14;
    --rgb-primary: 255,61,110;
    --rgb-accent: 124,58,237;
    --radius-sm: 7px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 1px 0 rgba(0,0,0,.06), 0 10px 22px rgba(124,58,237,.10);
    --shadow-md: 0 10px 26px rgba(16,24,40,.14), 0 3px 10px rgba(255,61,110,.10), 0 1px 0 rgba(255,255,255,.55) inset;
    --shadow-lg: 0 22px 50px rgba(16,24,40,.22), 0 10px 26px rgba(255,61,110,.18), 0 2px 0 rgba(255,255,255,.6) inset;
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.85rem;
    --transition: 0.5s cubic-bezier(.2,.85,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 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-lg);
    box-shadow:
        0 24px 60px rgba(16,24,40,.20),
        0 10px 26px rgba(255,61,110,.16),
        0 3px 12px rgba(124,58,237,.12),
        0 1px 0 rgba(255,255,255,.65) inset;
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(1200px 300px at 10% -10%, rgba(255,61,110,.20), transparent 55%),
        radial-gradient(900px 260px at 90% 0%, rgba(124,58,237,.18), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.68));
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow:
        0 18px 36px rgba(16,24,40,.14),
        0 6px 16px rgba(255,61,110,.14),
        0 1px 0 rgba(255,255,255,.55) inset;
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { color: var(--color-accent); }

/* ========== 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 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: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

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

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

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; }

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 30px 78px rgba(16,24,40,.26),
        0 14px 34px rgba(255,61,110,.22),
        0 8px 24px rgba(124,58,237,.18),
        0 1px 0 rgba(255,255,255,.7) inset;
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 260px at 12% 18%, rgba(255,61,110,.55), transparent 55%),
        radial-gradient(820px 240px at 86% 22%, rgba(124,58,237,.50), transparent 52%),
        linear-gradient(135deg, #ff3d6e 0%, #ff6b3d 30%, #a10f3a 64%, #5b21b6 100%);
    border-radius: var(--radius-xl);
    box-shadow:
        0 30px 90px rgba(16,24,40,.20),
        0 10px 26px rgba(255,61,110,.16),
        0 4px 16px rgba(124,58,237,.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: 0.85rem; }
    .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; }
}