:root {
    --color-primary: #7a8f73;
    --color-primary-dark: #4b5a46;
    --color-accent: #c47b5a;
    --color-surface: #faf0e6;
    --color-text: #2d2d2d;
    --rgb-primary: 122,143,115;
    --rgb-accent: 196,123,90;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 26px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.06), 0 8px 18px rgba(122,143,115,.10);
    --shadow-md: 0 2px 0 rgba(45,45,45,.05), 0 14px 28px rgba(122,143,115,.12), 0 1px 0 rgba(196,123,90,.10) inset;
    --shadow-lg: 0 4px 0 rgba(45,45,45,.04), 0 26px 52px rgba(122,143,115,.16), 0 10px 20px rgba(196,123,90,.10);
    --space-section: 4.25rem;
    --space-card: 1.6rem;
    --space-gap: 1.25rem;
    --transition: 420ms cubic-bezier(.2,.85,.2,1);
    --heading-weight: 700;
    --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 2px 0 rgba(45,45,45,.04),
        0 16px 30px rgba(122,143,115,.12),
        0 1px 0 rgba(255,255,255,.65) inset,
        0 -1px 0 rgba(45,45,45,.04) inset;
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(900px 220px at 12% 0%, rgba(196,123,90,.18), transparent 55%),
        radial-gradient(700px 240px at 86% 8%, rgba(122,143,115,.18), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.35));
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid rgba(45,45,45,.10);
    background: rgba(255,255,255,.55);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 1px 0 rgba(255,255,255,.35);
}

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

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

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 22s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 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; }

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 4px 0 rgba(45,45,45,.04),
        0 30px 64px rgba(122,143,115,.18),
        0 14px 26px rgba(196,123,90,.12),
        0 1px 0 rgba(255,255,255,.70) inset,
        0 -1px 0 rgba(45,45,45,.04) inset;
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 10% 0%, rgba(196,123,90,.45), transparent 55%),
        radial-gradient(850px 380px at 90% 18%, rgba(122,143,115,.38), transparent 54%),
        linear-gradient(135deg, #faf8f3 0%, rgba(250,248,243,.0) 55%),
        linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
}

/* 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: 2.55rem; --space-card: 1.2rem; --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; }
}