:root {
    --color-primary: #6b2b28;
    --color-primary-dark: #4a1b18;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,43,40;
    --rgb-accent: 196,69,54;

    --radius-sm: 9px;
    --radius-md: 14px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 0 rgba(26,26,26,0.06);
    --shadow-md: 0 10px 30px rgba(26,26,26,0.10), 0 1px 0 rgba(26,26,26,0.06);
    --shadow-lg: 0 18px 46px rgba(26,26,26,0.16), 0 2px 0 rgba(26,26,26,0.08);

    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;

    --transition: 520ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 800;
    --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); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }

.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow:
        0 10px 28px rgba(26,26,26,0.12),
        0 2px 0 rgba(26,26,26,0.07),
        0 0 0 1px rgba(26,26,26,0.06);
    padding: var(--space-card);
    transition:
        transform 520ms cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 520ms cubic-bezier(0.16, 1, 0.3, 1),
        filter 520ms cubic-bezier(0.16, 1, 0.3, 1),
        border-color 520ms cubic-bezier(0.16, 1, 0.3, 1),
        background-color 520ms cubic-bezier(0.16, 1, 0.3, 1);
    background:
        radial-gradient(900px 180px at 10% 0%, rgba(196,69,54,0.10) 0%, rgba(196,69,54,0.00) 55%),
        linear-gradient(180deg, rgba(255,255,255,0.85) 0%, rgba(255,255,255,0.62) 100%);
    outline: 1px solid rgba(26,26,26,0.05);
    outline-offset: -1px;
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition:
        transform 520ms cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 520ms cubic-bezier(0.16, 1, 0.3, 1),
        background-color 520ms cubic-bezier(0.16, 1, 0.3, 1),
        color 520ms cubic-bezier(0.16, 1, 0.3, 1),
        border-color 520ms cubic-bezier(0.16, 1, 0.3, 1),
        filter 520ms cubic-bezier(0.16, 1, 0.3, 1);
}

a:not([class]) { color: var(--color-primary); transition: color 520ms cubic-bezier(0.16, 1, 0.3, 1), text-shadow 520ms cubic-bezier(0.16, 1, 0.3, 1); text-shadow: 0 0 0 rgba(0,0,0,0); }

section { background: transparent; }

.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 22px 70px rgba(26,26,26,0.18),
        0 0 32px rgba(196,69,54,0.38),
        0 0 0 1px rgba(196,69,54,0.22);
    filter: saturate(1.02);
    outline: 1px solid rgba(196,69,54,0.22);
    animation: cardHaloPulse 1.35s ease-in-out infinite;
}

a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 22px rgba(196,69,54,0.38); }

.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 380px at 15% 25%, rgba(196,69,54,0.38) 0%, rgba(196,69,54,0.00) 60%),
        radial-gradient(820px 340px at 85% 15%, rgba(107,43,40,0.35) 0%, rgba(107,43,40,0.00) 58%),
        linear-gradient(135deg, #f5f1e8 0%, rgba(196,69,54,0.10) 26%, rgba(107,43,40,0.18) 62%, rgba(26,26,26,0.04) 100%);
}

.card { border-left: 3px solid var(--color-accent); }

header, .header, .navbar { background: transparent; }

@keyframes cardHaloPulse {
    0% { box-shadow: 0 22px 70px rgba(26,26,26,0.18), 0 0 32px rgba(196,69,54,0.30), 0 0 0 1px rgba(196,69,54,0.20); }
    50% { box-shadow: 0 22px 70px rgba(26,26,26,0.18), 0 0 44px rgba(196,69,54,0.48), 0 0 0 1px rgba(196,69,54,0.28); }
    100% { box-shadow: 0 22px 70px rgba(26,26,26,0.18), 0 0 32px rgba(196,69,54,0.30), 0 0 0 1px rgba(196,69,54,0.20); }
}

/* 基础覆盖 */
.news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
.news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

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

.hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
.hero-content { position: relative; z-index: 1; }

.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

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

.faq-list { max-width: 800px; margin: 0 auto; }

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

.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

.page-main { max-width: 860px; margin: 0 auto; }

@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; }
}