:root {
    --color-primary: #e11d48;
    --color-primary-dark: #9f1239;
    --color-accent: #22c55e;
    --color-surface: #ecfeff;
    --color-text: #0f172a;
    --rgb-primary: 225,29,72;
    --rgb-accent: 34,197,94;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 22px;
    --radius-xl: 34px;
    --shadow-sm: 0 3px 8px rgba(2,6,23,.06);
    --shadow-md: 0 4px 10px rgba(2,6,23,.06), 0 22px 46px -12px rgba(2,6,23,.14);
    --shadow-lg: 0 6px 16px rgba(2,6,23,.08), 0 28px 64px -18px rgba(2,6,23,.16);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.38s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 650;
    --body-line-height: 1.65;
    --color-border: rgba(15,23,42,.14);
    --shadow-soft-border: 0 0 0 1px rgba(255,255,255,.35) inset, 0 0 0 1px rgba(15,23,42,.06);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(1000px 700px at 15% -10%, rgba(225,29,72,.10), transparent 60%),
                radial-gradient(900px 640px at 85% 0%, rgba(34,197,94,.12), transparent 55%),
                linear-gradient(180deg, #fbfbfe, #f5f7ff);
}

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 4px 10px rgba(2,6,23,.06),
                0 22px 46px -12px rgba(2,6,23,.14),
                0 0 0 1px rgba(255,255,255,.55) inset,
                0 0 0 1px rgba(15,23,42,.08);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.76));
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition), color var(--transition);
    outline-color: rgba(225,29,72,.35);
    caret-color: var(--color-primary);
    accent-color: var(--color-accent);
}

a:not([class]) {
    color: var(--color-primary);
    transition: color var(--transition), text-shadow var(--transition), background-color var(--transition);
    text-shadow: 0 1px 0 rgba(255,255,255,.4);
}

/* ========== 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: 40px var(--space-gap);
                    align-items: stretch;
                }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: centered */
/* 居中大卡片 */
                .feature-list {
                    display: flex;
                    flex-direction: column;
                    align-items: center;
                    gap: calc(var(--space-gap) * 2);
                    max-width: 720px;
                    margin: 0 auto;
                }

/* hero: centered */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list {
                    display: flex;
                    flex-direction: column;
                    gap: 28px;
                    max-width: 720px;
                    margin: 0 auto;
                }

/* partners: grid-6 */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 40px var(--space-gap);
    align-items: center;
}

/* 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: 3.25rem;
                    align-items: center;
                }

/* cta: card-style */
.cta-inner {
    background: radial-gradient(900px 300px at 20% 0%, rgba(34,197,94,.18), transparent 55%),
                radial-gradient(800px 320px at 80% 10%, rgba(225,29,72,.18), transparent 52%),
                linear-gradient(180deg, rgba(236,254,255,.95), rgba(245,255,255,.80));
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: 0 6px 18px rgba(2,6,23,.08),
                0 26px 70px -22px rgba(2,6,23,.16),
                0 0 0 1px rgba(255,255,255,.65) inset,
                0 0 0 1px rgba(15,23,42,.10);
    backdrop-filter: blur(10px);
}

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 360px at 10% 0%, rgba(255,255,255,.20), transparent 55%),
        radial-gradient(700px 420px at 88% 20%, rgba(34,197,94,.18), transparent 58%),
        linear-gradient(135deg, #e11d48 0%, #9f1239 55%, #0b1220 120%);
    color: rgba(255,255,255,.92);
}
.card { border-left: 4px solid var(--color-primary); }
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; }
    .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; }
}