:root {
    --color-primary: #b45309;
    --color-primary-dark: #7c2d12;
    --color-accent: #f59e0b;
    --color-surface: #faf6f0;
    --color-text: #292524;
    --rgb-primary: 180,83,9;
    --rgb-accent: 245,158,11;
    --radius-sm: 0;
    --radius-md: 3px;
    --radius-lg: 5px;
    --radius-xl: 6px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 4.5rem;
    --space-card: 1.25rem;
    --space-gap: 1.125rem;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: #f5efe6;
}

h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: inherit;
}

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

.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: none;
    padding: var(--space-card);
    transition: var(--transition);
    background: #ffffff;
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background-color: var(--color-primary);
    color: #fffaf5;
}

a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(var(--rgb-primary), .35);
}

/* ========== 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);
    background: var(--color-surface);
}

.news-grid .card {
    display: grid;
    grid-template-columns: 280px 1fr;
}

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

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: #1c1917;
    color: #faf6f0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-gap);
    max-width: 720px;
    margin: 0 auto;
    background: var(--color-surface);
}

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

/* faq: single-column */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-surface);
}

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

/* cta: full-bg */
.cta-section {
    background: #1c1917;
    color: #faf6f0;
    padding: 4.5rem 2rem;
}

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

/* 条件性装饰 */
.card {
    border: 1px solid rgba(var(--rgb-primary), .18);
}

/* 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; }
}