:root {
    --color-primary: #0f3d2e;
    --color-primary-dark: #0a2a20;
    --color-accent: #ffb703;
    --color-surface: #f3f0e4;
    --color-text: #10231c;
    --rgb-primary: 15,61,46;
    --rgb-accent: 255,183,3;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;
    --radius-xl: 14px;
    --shadow-sm: 0 1px 0 rgba(10,42,32,.18), 0 8px 20px rgba(10,42,32,.06);
    --shadow-md: 0 1px 0 rgba(10,42,32,.14), 0 10px 26px rgba(10,42,32,.08);
    --shadow-lg: 0 2px 0 rgba(10,42,32,.16), 0 18px 46px rgba(10,42,32,.10);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.16s cubic-bezier(.2,.8,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.75;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #ffffff 0%, var(--color-surface) 65%, #ffffff 100%);
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background-image:
        linear-gradient(90deg, rgba(15,61,46,.06) 0%, rgba(15,61,46,0) 35%),
        linear-gradient(180deg, rgba(255,255,255,.85) 0%, rgba(243,240,228,.9) 100%);
    background-color: #ffffff;
}
.card, [class*="card"] {
    border-radius: 6px;
    box-shadow:
        0 1px 0 rgba(16,35,28,.12),
        0 10px 22px rgba(16,35,28,.08),
        inset 0 0 0 1px rgba(16,35,28,.06);
    padding: var(--space-card);
    transition: var(--transition);
    background:
        linear-gradient(180deg, rgba(255,255,255,.95) 0%, rgba(255,255,255,.82) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: 4px;
    transition: var(--transition);
    box-shadow: 0 1px 0 rgba(16,35,28,.10);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 0.5px 0 rgba(16,35,28,.10);
}

/* ========== 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); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: minimal */
.hero { padding: 2rem 0; background: linear-gradient(90deg, rgba(255,183,3,.10) 0%, rgba(255,183,3,0) 60%), #ffffff; } .hero-content { max-width: 560px; }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); 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; color: #0c2f23; text-shadow: 0 1px 0 rgba(255,255,255,.7); }

/* cta: full-bg */
.cta-section {
    background:
        radial-gradient(1200px 380px at 20% 0%, rgba(255,183,3,.22) 0%, rgba(255,183,3,0) 55%),
        radial-gradient(900px 300px at 80% 20%, rgba(82,183,136,.18) 0%, rgba(82,183,136,0) 55%),
        linear-gradient(180deg, #0f3d2e 0%, #0a2a20 100%);
    color: #f7fbf9;
    padding: 4rem 2rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.10);
}

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 1px 0 rgba(16,35,28,.18); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(0,0,0,.10),
        0 10px 24px rgba(0,0,0,.08);
    background: rgba(255,255,255,.82);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(16,35,28,.08);
}

/* 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; --transition: 0.14s cubic-bezier(.2,.8,.2,1); }
    .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; }
}