:root {
    --color-primary: #4b1d5a;
    --color-primary-dark: #240b33;
    --color-accent: #d1a100;
    --color-surface: #f7f2ff;
    --color-text: #f4f0ff;
    --rgb-primary: 75,29,90;
    --rgb-accent: 209,161,0;

    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 38px;

    --shadow-sm:
        0 1px 0 rgba(255,255,255,.08),
        0 3px 10px rgba(9,7,20,.24);
    --shadow-md:
        0 10px 26px rgba(0,0,0,.26),
        0 2px 0 rgba(255,255,255,.06),
        inset 0 1px 0 rgba(255,255,255,.06);
    --shadow-lg:
        0 24px 56px rgba(0,0,0,.40),
        0 10px 22px rgba(50,18,74,.34),
        0 2px 0 rgba(255,255,255,.07),
        inset 0 1px 0 rgba(255,255,255,.07);

    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;

    --transition: 0.55s cubic-bezier(.2,.9,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(1200px 700px at 50% -120px, rgba(209,161,0,.22), rgba(209,161,0,0) 60%),
        radial-gradient(900px 520px at 15% 10%, rgba(75,29,90,.36), rgba(75,29,90,0) 62%),
        radial-gradient(900px 520px at 85% 20%, rgba(163,60,255,.22), rgba(163,60,255,0) 60%),
        linear-gradient(180deg, #0f0f1a 0%, #0b0b14 100%);
}
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 16px 40px rgba(0,0,0,.35),
        0 3px 0 rgba(255,255,255,.06),
        inset 0 1px 0 rgba(255,255,255,.08);
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(120% 120% at 0% 0%, rgba(209,161,0,.14), rgba(209,161,0,0) 55%),
        radial-gradient(90% 90% at 100% 0%, rgba(75,29,90,.24), rgba(75,29,90,0) 60%),
        linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow:
        0 10px 26px rgba(0,0,0,.28),
        inset 0 1px 0 rgba(255,255,255,.10);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 1px 0 rgba(0,0,0,.25);
}

/* ========== 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: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); 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: full-bg */
.cta-section {
    background:
        radial-gradient(1100px 520px at 10% 20%, rgba(209,161,0,.35), rgba(209,161,0,0) 60%),
        radial-gradient(900px 460px at 85% 10%, rgba(138,19,55,.35), rgba(138,19,55,0) 62%),
        linear-gradient(135deg, #2c0f3d 0%, #0f0f1a 55%, #240b33 100%);
    color: #ffffff;
    padding: 4rem 2rem;
    box-shadow:
        0 26px 72px rgba(0,0,0,.46),
        inset 0 1px 0 rgba(255,255,255,.08);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-5px);
    box-shadow:
        0 30px 80px rgba(0,0,0,.48),
        0 12px 30px rgba(75,29,90,.34),
        0 2px 0 rgba(255,255,255,.08),
        inset 0 1px 0 rgba(255,255,255,.10);
}
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(1200px 620px at 20% 10%, rgba(209,161,0,.25), rgba(209,161,0,0) 60%),
        radial-gradient(900px 520px at 80% 30%, rgba(138,19,55,.32), rgba(138,19,55,0) 62%),
        linear-gradient(135deg, #17132a 0%, #2c0f3d 35%, #0f0f1a 100%);
}
.card { border-left: 3px 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; }
}