:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #3b1d78;
    --color-accent: #f97362;
    --color-surface: #f4f4f9;
    --color-text: #241b3a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 249,115,98;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 36px;
    --shadow-sm: 0 1px 1px rgba(59,29,120,.05), 0 3px 8px -2px rgba(59,29,120,.08);
    --shadow-md: 0 2px 4px rgba(59,29,120,.05), 0 10px 26px -8px rgba(124,58,237,.18), inset 0 0 0 1px rgba(124,58,237,.07);
    --shadow-lg: 0 4px 10px rgba(59,29,120,.07), 0 20px 44px -12px rgba(124,58,237,.26), inset 0 1px 0 rgba(255,255,255,.85);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
    --grad-surface: linear-gradient(155deg, #ffffff 0%, #fcfbff 42%, #f1edff 100%);
    --grad-primary: linear-gradient(135deg, #a78bfa 0%, #7c3aed 48%, #4c1d95 100%);
    --grad-accent: linear-gradient(120deg, #fbbf24 0%, #f97362 52%, #e11d48 100%);
    --grad-strip: linear-gradient(90deg, #c4b5fd 0%, #7c3aed 30%, #f97362 68%, #fbbf24 100%);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: #f4f4f9; background-image: linear-gradient(180deg, #fdfdfe 0%, #f4f4f9 38%, #ebeaf5 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #2b1f4d; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background-image: linear-gradient(180deg, rgba(255,255,255,.55) 0%, rgba(244,241,255,.45) 60%, rgba(232,229,247,.65) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; background-image: var(--grad-surface); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); color: #ffffff; background-color: var(--color-primary); background-image: var(--grad-primary); box-shadow: 0 1px 2px rgba(59,29,120,.14), 0 8px 18px -8px rgba(124,58,237,.55); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(124,58,237,.45); }

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

/* news: grid-3 */
/* 三列等宽网格 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* 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; background-image: radial-gradient(circle at 22% 8%, rgba(167,139,250,.20) 0%, rgba(167,139,250,0) 55%), radial-gradient(circle at 82% 92%, rgba(249,115,98,.16) 0%, rgba(249,115,98,0) 60%); border-radius: var(--radius-xl); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; color: #3b1d78; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background-image: linear-gradient(115deg, rgba(124,58,237,.10) 0%, rgba(167,139,250,.12) 35%, rgba(249,115,98,.12) 72%, rgba(251,191,36,.10) 100%); border-radius: var(--radius-lg); }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 1px 12px rgba(249,115,98,.35); }

/* 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; }
}