:root {
    --color-primary: #e2b63e;
    --color-primary-dark: #b7861b;
    --color-accent: #ffd982;
    --color-surface: #221e3d;
    --color-text: #efebff;
    --rgb-primary: 226,182,62;
    --rgb-accent: 255,217,130;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 0 #06050c;
    --shadow-md: 4px 4px 0 0 #06050c;
    --shadow-lg: 6px 6px 0 0 #06050c;
    --space-section: 3.5rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 0.15s cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

body {
    background-color: #0f0f1a;
    color: var(--color-text);
    line-height: var(--body-line-height);
}

h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: var(--color-accent);
    text-shadow: 0 2px 10px rgba(255, 217, 130, .12);
}

section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
}

.card, [class*="card"] {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 0 0 2px rgba(255, 255, 255, .05);
    padding: var(--space-card);
    transition: var(--transition);
}

.btn, button[class*="btn"], a[class*="btn"] {
    background-color: var(--color-primary);
    color: #0f0f1a;
    border-radius: var(--radius-md);
    box-shadow: 3px 3px 0 0 #06050c, inset 0 0 0 2px rgba(255, 255, 255, .18);
    transition: var(--transition);
}

a:not([class]) {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary-dark);
    transition: var(--transition);
}

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

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

/* features: grid-2 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--space-gap) * 1.5);
}

/* hero: centered */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

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

/* partners: centered */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

/* faq: single-column */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

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

/* cta: card-style */
.cta-inner {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-md), inset 0 0 0 2px rgba(255, 255, 255, .06);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), inset 0 0 0 2px rgba(255, 217, 130, .14);
}

.hero, [class*="hero"], section:first-of-type {
    background: radial-gradient(ellipse at 50% 0%, rgba(255, 217, 130, .12) 0%, transparent 62%), linear-gradient(135deg, #15132b 0%, #0f0f1a 100%);
}

header, .header, .navbar {
    background-color: rgba(15, 15, 26, .9);
    box-shadow: 0 4px 0 0 #161330;
}

/* 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; }
}