:root {
    --color-primary: #c44536;
    --color-primary-dark: #8f2f28;
    --color-accent: #6b705c;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 107,112,92;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 26px;
    --shadow-sm: 0 1px 0 rgba(26,26,26,.06), 0 8px 18px rgba(26,26,26,.08);
    --shadow-md: 0 1px 0 rgba(26,26,26,.06), 0 14px 30px rgba(26,26,26,.12);
    --shadow-lg: 0 1px 0 rgba(26,26,26,.06), 0 26px 60px rgba(26,26,26,.16);
    --space-section: 3.25rem;
    --space-card: 1.25rem;
    --space-gap: 1.05rem;
    --transition: 220ms cubic-bezier(.2,.8,.2,1);
    --heading-weight: 850;
    --body-line-height: 1.65;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 1px 0 rgba(0,0,0,.05); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-xl);
    background: rgba(245,241,232,.92);
    border: 1px solid rgba(26,26,26,.10);
    box-shadow:
        0 1px 0 rgba(26,26,26,.06),
        0 14px 26px rgba(26,26,26,.10),
        0 2px 0 rgba(196,69,54,.06) inset;
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    text-shadow: none;
}
a:not([class]) { color: var(--color-primary); transition: color var(--transition), text-shadow var(--transition); }
a:not([class]):focus, a:not([class]):hover { text-shadow: 0 10px 22px rgba(196,69,54,.18); }

section:first-of-type { position: relative; }
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 300px at 15% 25%, rgba(196,69,54,.22), rgba(196,69,54,0) 60%),
        radial-gradient(700px 260px at 85% 20%, rgba(107,112,92,.20), rgba(107,112,92,0) 60%),
        linear-gradient(135deg, #f7d8cc 0%, #c44536 28%, #8f2f28 62%, #5a1f1a 100%);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255,255,255,.18);
    box-shadow:
        0 1px 0 rgba(0,0,0,.06),
        0 28px 70px rgba(0,0,0,.18);
    overflow: hidden;
}

.card { border: 1px solid rgba(var(--rgb-primary), .14); }

a:not([class]):hover { color: var(--color-accent); text-shadow: 0 12px 26px rgba(107,112,92,.20); }

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

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }
                .news-grid > * { transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition); }
                .news-grid > *:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* 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; }
                .feature-list .card, .feature-list [class*="card"] { background: rgba(245,241,232,.96); border-color: rgba(26,26,26,.10); }

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero-content h1, .hero-content h2 { letter-spacing: -0.02em; color: #1a1a1a; text-shadow: 0 1px 0 rgba(255,255,255,.18); }
.hero-content * { color: #1a1a1a; }

/* testimonials: masonry */
.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
                .testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }
                .testimonial-list > *:hover { transform: translateY(-2px); transition: transform var(--transition), box-shadow var(--transition); box-shadow: var(--shadow-md); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 22s cubic-bezier(.2,.8,.2,1) infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
                .partner-grid img, .partner-grid svg { filter: drop-shadow(0 10px 18px rgba(26,26,26,.10)); opacity: .95; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-list .card, .faq-list [class*="card"] { box-shadow: var(--shadow-sm); border-radius: 22px; }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid > * { color: rgba(26,26,26,.92); }
                .stats-grid .card, .stats-grid [class*="card"] { background: rgba(245,241,232,.95); box-shadow: 0 1px 0 rgba(26,26,26,.06), 0 10px 24px rgba(26,26,26,.10); }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-inner .btn, .cta-inner button[class*="btn"], .cta-inner a[class*="btn"] {
    background: linear-gradient(180deg, rgba(245,241,232,1) 0%, rgba(245,241,232,.86) 100%);
    border: 1px solid rgba(26,26,26,.14);
    box-shadow: 0 10px 26px rgba(26,26,26,.14), 0 1px 0 rgba(255,255,255,.55) inset;
    color: #1a1a1a;
}
.cta-inner .btn:hover, .cta-inner button[class*="btn"]:hover, .cta-inner a[class*="btn"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 44px rgba(26,26,26,.18), 0 1px 0 rgba(255,255,255,.6) inset;
    border-color: rgba(196,69,54,.28);
}

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

/* 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: 3rem; --space-card: 1.1rem; --space-gap: 0.95rem; }
    .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; }
}