:root {
    --color-primary: #e55070;
    --color-primary-dark: #b83855;
    --color-accent: #f7a54e;
    --color-surface: #faf7f5;
    --color-text: #2d2d34;
    --color-bg: #f3f4f6;
    --rgb-primary: 229,80,112;
    --rgb-accent: 247,165,78;
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 2px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 #d1d5db;
    --shadow-md: 4px 4px 0 #cbd5e1;
    --shadow-lg: 6px 6px 0 #9ca3af;
    --space-section: 5rem;
    --space-card: 1.75rem;
    --space-gap: 1.25rem;
    --transition: 0.15s ease-out;
    --heading-weight: 700;
    --body-line-height: 1.6;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-bg); }
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: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: var(--color-surface); outline: 2px solid var(--color-text); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); box-shadow: 2px 2px 0 var(--color-text); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

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

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: 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-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

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

/* cta: card-style */
.cta-inner { background: var(--color-primary); color: #fff; border-radius: var(--radius-xl); padding: 3rem; text-align: center; box-shadow: var(--shadow-lg); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); outline-color: var(--color-accent); }
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(120deg, var(--color-primary), var(--color-primary-dark)); }
.card { border-left: 3px solid var(--color-primary); }
[class*="card"]:nth-child(3n+2) { border-left-color: var(--color-accent); }
[class*="card"]:nth-child(3n+3) { border-left-color: #6a994e; }
header, .header, .navbar { background: rgba(255,255,255,0.8); backdrop-filter: blur(8px); }

/* 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; }
}