:root {
    --color-primary: #7b2ff7;
    --color-primary-dark: #3b0a72;
    --color-accent: #a3e635;
    --color-surface: #f6f2ff;
    --color-text: #1e1b3a;
    --rgb-primary: 123,47,247;
    --rgb-accent: 163,230,53;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 0 1px rgba(123,47,247,.14), 0 2px 10px rgba(123,47,247,.22);
    --shadow-md: 0 0 18px rgba(123,47,247,.30), 0 8px 20px rgba(59,10,114,.18);
    --shadow-lg: 0 0 34px rgba(123,47,247,.42), 0 0 68px rgba(163,230,53,.22), 0 16px 34px rgba(59,10,114,.26);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.22s cubic-bezier(.22,1,.36,1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(120% 90% at 8% 0%, rgba(163,230,53,.16), transparent 58%), radial-gradient(100% 80% at 100% 10%, rgba(123,47,247,.14), transparent 60%), var(--color-surface);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 26px rgba(123,47,247,.22); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(123,47,247,.16);
    padding: var(--space-card);
    transition: var(--transition);
    background: #ffffff;
    color: var(--color-text);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: 0 0 16px rgba(163,230,53,.45), inset 0 0 0 1px rgba(255,255,255,.28);
    caret-color: var(--color-accent);
    accent-color: var(--color-primary);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 0 14px rgba(123,47,247,.35);
    text-decoration-color: rgba(163,230,53,.85);
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: grid-4 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-gap);
    background: linear-gradient(155deg, rgba(123,47,247,.13), rgba(163,230,53,.20));
    border-radius: var(--radius-xl);
    box-shadow: inset 0 0 0 1px rgba(123,47,247,.24), 0 0 30px rgba(123,47,247,.14);
    outline: 1px solid rgba(123,47,247,.10);
    outline-offset: 3px;
}

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: grid-3 */
.testimonial-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
    background: linear-gradient(210deg, #1e1b3a, #3b0a72 70%, #7b2ff7 165%);
    border-radius: var(--radius-xl);
    box-shadow: 0 0 40px rgba(123,47,247,.38), inset 0 0 60px rgba(163,230,53,.10);
    color: #f6f2ff;
}

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-gap);
    background: linear-gradient(145deg, rgba(163,230,53,.22), rgba(123,47,247,.10));
    border-radius: var(--radius-xl);
    box-shadow: inset 0 0 0 1px rgba(163,230,53,.55), 0 0 26px rgba(163,230,53,.20);
}

/* stats: inline */
/* 水平排列 */
                .stats-grid {
                    display: flex;
                    justify-content: center;
                    gap: 3rem;
                    box-shadow: inset 0 1px 0 rgba(123,47,247,.30), inset 0 -1px 0 rgba(123,47,247,.30), 0 0 28px rgba(123,47,247,.14);
                    border-radius: var(--radius-md);
                    color: var(--color-primary-dark);
                }

/* cta: full-bg */
.cta-section {
    background: radial-gradient(90% 120% at 85% 0%, rgba(163,230,53,.35), transparent 60%), linear-gradient(120deg, #7b2ff7, #3b0a72 85%);
    color: #ffffff;
    padding: 4rem 2rem;
    box-shadow: inset 0 0 70px rgba(163,230,53,.16), 0 0 42px rgba(123,47,247,.32);
    border-radius: var(--radius-xl);
    text-shadow: 0 0 24px rgba(163,230,53,.35);
}

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background: radial-gradient(110% 90% at 10% 0%, rgba(163,230,53,.30), transparent 55%), linear-gradient(135deg, #2a0a52, #7b2ff7 68%, #a855f7);
    color: #f8f5ff;
    box-shadow: inset 0 -40px 80px rgba(30,27,58,.45), 0 0 50px rgba(123,47,247,.30);
}

/* 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; }
}