:root {
    --color-primary: #7a1f2b;
    --color-primary-dark: #2b0710;
    --color-accent: #ff3b6a;
    --color-surface: #fff3e6;
    --color-text: #1b0b12;
    --rgb-primary: 122,31,43;
    --rgb-accent: 255,59,106;
    --rgb-accent: 255,59,106;
    --radius-sm: 0;
    --radius-md: 3px;
    --radius-lg: 6px;
    --radius-xl: 10px;
    --shadow-sm: 0 1px 0 rgba(17, 6, 10, .05), 0 6px 16px rgba(122, 31, 43, .10);
    --shadow-md: 0 10px 26px rgba(20, 6, 10, .10), 0 2px 8px rgba(255, 59, 106, .10), 0 1px 0 rgba(255, 255, 255, .55) inset;
    --shadow-lg: 0 18px 48px rgba(18, 6, 10, .18), 0 6px 18px rgba(122, 31, 43, .16), 0 1px 0 rgba(255, 255, 255, .65) inset;
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.52s cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 800;
    --body-line-height: 1.7;
    --color-strip-1: #ffffff;
    --color-strip-2: #fff1db;
    --color-strip-3: #2a0a14;
    --color-strip-4: #ffffff;
    --strip-ink: rgba(27, 11, 18, .92);
    --strip-muted: rgba(255, 255, 255, .80);
    --strip-border: rgba(255, 59, 106, .22);
    --shadow-ring: rgba(255, 59, 106, .18);
    --shadow-glow: rgba(122, 31, 43, .22);
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .95)) padding-box,
        radial-gradient(900px 380px at 20% 10%, rgba(255, 59, 106, .10), transparent 55%) no-repeat,
        radial-gradient(900px 380px at 80% 0%, rgba(122, 31, 43, .12), transparent 55%) no-repeat;
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}

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 12px 28px rgba(18, 6, 10, .14),
        0 2px 10px rgba(122, 31, 43, .12),
        0 1px 0 rgba(255, 255, 255, .65) inset;
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .92), rgba(255, 243, 230, .92)) padding-box,
        radial-gradient(600px 120px at 20% 0%, rgba(255, 59, 106, .22), transparent 55%) no-repeat,
        radial-gradient(500px 140px at 85% 10%, rgba(122, 31, 43, .18), transparent 60%) no-repeat;
    border: 1px solid rgba(var(--rgb-primary), .14);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
    border-color: rgba(var(--rgb-primary), .18);
}

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

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

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

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

/* 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: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 26px 64px rgba(18, 6, 10, .22),
        0 10px 30px rgba(255, 59, 106, .18),
        0 3px 12px rgba(122, 31, 43, .16),
        0 1px 0 rgba(255, 255, 255, .70) inset;
    border-color: rgba(var(--rgb-accent), .30);
}

.card {
    border-color: rgba(var(--rgb-primary), .14);
    outline: 1px solid rgba(255, 59, 106, .0);
    outline-offset: 3px;
}

.card:hover, [class*="card"]:hover {
    outline-color: rgba(255, 59, 106, .18);
}

header, .header, .navbar {
    box-shadow:
        0 10px 26px rgba(18, 6, 10, .10),
        0 2px 10px rgba(255, 59, 106, .10),
        0 1px 0 rgba(255, 255, 255, .55) inset;
    border-bottom: 1px solid rgba(var(--rgb-accent), .16);
    backdrop-filter: blur(10px) saturate(120%);
    -webkit-backdrop-filter: blur(10px) saturate(120%);
}

/* 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; }
}