:root {
    --color-primary: #7c2d12;
    --color-primary-dark: #5a1f0e;
    --color-accent: #f59e0b;
    --color-surface: #f6f3ea;
    --color-text: #1f2937;
    --rgb-primary: 124,45,18;
    --rgb-accent: 245,158,11;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 26px;

    --shadow-sm: 0 10px 24px rgba(var(--rgb-primary), .10), 0 2px 10px rgba(0,0,0,.06);
    --shadow-md: 0 14px 36px rgba(var(--rgb-primary), .14), 0 2px 12px rgba(0,0,0,.06);
    --shadow-lg: 0 22px 60px rgba(var(--rgb-primary), .16), 0 10px 28px rgba(0,0,0,.08);

    --shadow-glow: 0 0 24px rgba(var(--rgb-accent), .35);
    --shadow-glow-hover: 0 0 32px rgba(var(--rgb-accent), .55);

    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.28s cubic-bezier(.2,.9,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #f7f4eb 0%, #f4f6fb 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 1px 0 rgba(255,255,255,.65) inset,
        0 0 0 1px rgba(var(--rgb-accent), .14),
        var(--shadow-md),
        var(--shadow-glow);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background-color var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,.70) 0%, rgba(255,255,255,.42) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: box-shadow var(--transition), transform var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
}
a:not([class]) {
    color: var(--color-primary);
    transition: color var(--transition), text-shadow var(--transition), filter var(--transition);
    text-shadow: 0 0 0 rgba(0,0,0,0);
}

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

/* news: featured-top */
/* 首篇横跨全宽 */
                .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
                .news-grid > *:first-child { grid-column: span 3; }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

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

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

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

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; text-shadow: 0 1px 0 rgba(255,255,255,.55), 0 0 22px rgba(var(--rgb-accent), .20); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-5px);
    box-shadow:
        0 1px 0 rgba(255,255,255,.72) inset,
        0 0 0 1px rgba(var(--rgb-accent), .22),
        var(--shadow-lg),
        var(--shadow-glow-hover);
    animation: glowPulse 1.25s ease-in-out both;
}
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 18px rgba(var(--rgb-accent), .38); filter: saturate(1.05); }
.card { border: 1px solid rgba(var(--rgb-accent), .18); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(255,255,255,.55) inset,
        0 10px 26px rgba(0,0,0,.10),
        0 0 22px rgba(var(--rgb-accent), .14);
    background: linear-gradient(180deg, rgba(37,46,58,.92) 0%, rgba(28,36,48,.90) 100%);
    border-bottom: 1px solid rgba(var(--rgb-accent), .16);
}

/* 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; --radius-lg: 16px; --radius-md: 12px; }
    .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; }
}

@keyframes glowPulse {
    0% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.72) inset,
            0 0 0 1px rgba(var(--rgb-accent), .18),
            var(--shadow-md),
            var(--shadow-glow);
        transform: translateY(-5px);
        opacity: .98;
    }
    45% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.74) inset,
            0 0 0 1px rgba(var(--rgb-accent), .26),
            var(--shadow-lg),
            0 0 40px rgba(var(--rgb-accent), .62);
        transform: translateY(-6px);
        opacity: 1;
    }
    100% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.70) inset,
            0 0 0 1px rgba(var(--rgb-accent), .22),
            var(--shadow-lg),
            var(--shadow-glow-hover);
        transform: translateY(-5px);
        opacity: .99;
    }
}