:root {
    --color-primary: #c14b3a;
    --color-primary-dark: #983629;
    --color-accent: #6d7258;
    --color-surface: #f4efe6;
    --color-text: #191919;
    --rgb-primary: 193,75,58;
    --rgb-accent: 109,114,88;
    --radius-sm: 3px;
    --radius-md: 7px;
    --radius-lg: 15px;
    --radius-xl: 23px;
    --shadow-sm: 0 1px 2px rgba(25,25,25,.05), 0 2px 6px rgba(193,75,58,.06);
    --shadow-md: 0 2px 5px rgba(25,25,25,.04), 0 12px 28px rgba(193,75,58,.1), inset 0 1px 0 rgba(255,255,255,.65);
    --shadow-lg: 0 6px 14px rgba(25,25,25,.05), 0 28px 56px rgba(193,75,58,.14), inset 0 1px 0 rgba(255,255,255,.75);
    --space-section: 5.5rem;
    --space-card: 2.2rem;
    --space-gap: 1.65rem;
    --transition: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #f4efe6 0%, #eae3d6 100%); accent-color: var(--color-primary); caret-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #191919; }
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: linear-gradient(145deg, rgba(255,255,255,.92), rgba(244,239,230,.96)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; box-shadow: 0 8px 20px rgba(193,75,58,.22); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(193,75,58,.35); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
.news-grid { column-count: 2; column-gap: var(--space-gap); }
.news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: centered */
/* 居中大卡片 */
.feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; color: rgba(255,255,255,.92); text-shadow: 0 2px 8px rgba(25,25,25,.25); }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* 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: radial-gradient(800px 400px at 15% 10%, rgba(193,75,58,.1), transparent 55%), linear-gradient(145deg, #f4efe6, #e6dccb); border-radius: var(--radius-xl); padding: 3.25rem; text-align: center; box-shadow: var(--shadow-lg); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type { background: radial-gradient(1100px 500px at 85% -10%, rgba(193,75,58,.35), transparent 60%), linear-gradient(135deg, #191919 0%, #3b362f 60%, #6d7258 100%); }
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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}