:root {
    --color-primary: #c47b5a;
    --color-primary-dark: #a85f41;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 196,123,90;
    --rgb-accent: 135,168,120;
    --radius-sm: 0;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 1px 0 rgba(45,45,45,.06), 0 6px 16px rgba(196,123,90,.10);
    --shadow-md: 0 2px 0 rgba(45,45,45,.05), 0 10px 28px rgba(45,45,45,.10), 0 1px 0 rgba(250,248,243,.65) inset;
    --shadow-lg: 0 3px 0 rgba(45,45,45,.06), 0 22px 60px rgba(45,45,45,.16), 0 0 0 1px rgba(135,168,120,.18) inset;
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.48s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(900px 500px at 15% -10%, rgba(135,168,120,.18), transparent 60%), radial-gradient(900px 500px at 85% 0%, rgba(196,123,90,.14), transparent 62%), linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.96) 45%, rgba(250,248,243,1) 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(45,45,45,.05), 0 14px 34px rgba(45,45,45,.14), 0 0 0 1px rgba(135,168,120,.18) inset;
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(1200px 420px at 10% 0%, rgba(135,168,120,.16), transparent 55%),
        radial-gradient(800px 320px at 90% 10%, rgba(196,123,90,.14), transparent 52%),
        linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.94) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 0 rgba(255,255,255,.55); }
a:not([class]):focus { outline: 2px solid rgba(135,168,120,.55); outline-offset: 3px; }
a:not([class])::selection { background: rgba(135,168,120,.28); }

.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar { background: transparent; }

.hero, [class*="hero"], section:first-of-type { 
    background:
        radial-gradient(900px 420px at 20% 0%, rgba(135,168,120,.26), transparent 55%),
        radial-gradient(780px 360px at 85% 10%, rgba(196,123,90,.22), transparent 58%),
        linear-gradient(135deg, #c47b5a 0%, #87a878 45%, #a85f41 100%);
    border-radius: 0;
}

:root { caret-color: var(--color-accent); accent-color: var(--color-accent); }

/* ========== 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: 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: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* 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(900px 360px at 18% 0%, rgba(135,168,120,.20), transparent 58%),
        radial-gradient(800px 320px at 88% 15%, rgba(196,123,90,.18), transparent 56%),
        linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.92) 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: 0 1px 0 rgba(45,45,45,.05), 0 20px 46px rgba(45,45,45,.14), 0 0 0 1px rgba(135,168,120,.18) inset;
    transition: var(--transition);
}

/* 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: 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; }
}