:root {
    --color-primary: #2d5b4b;
    --color-primary-dark: #173327;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 45,91,75;
    --rgb-accent: 135,168,120;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 4px;
    --radius-xl: 0px;
    --shadow-sm: none;
    --shadow-md: 4px 4px 0 rgba(23,51,39,.22), 0 10px 18px rgba(0,0,0,.10);
    --shadow-lg: 4px 4px 0 rgba(23,51,39,.22), 0 14px 24px rgba(0,0,0,.12);
    --space-section: 3.75rem;
    --space-card: 1.1rem;
    --space-gap: 3.25rem;
    --transition: 0.15s cubic-bezier(.2,.9,.2,1);
    --heading-weight: 850;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); letter-spacing: -0.01em; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-xl);
    box-shadow:
        4px 4px 0 rgba(23,51,39,.22),
        0 10px 24px rgba(0,0,0,.10),
        inset 0 0 0 2px rgba(45,91,75,.22);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.96) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-sm);
    transition: var(--transition);
    box-shadow:
        3px 3px 0 rgba(23,51,39,.18),
        inset 0 0 0 2px rgba(45,91,75,.18);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(135,168,120,.7); }
a:not([class]):hover { text-decoration-color: rgba(135,168,120,1); }

/* ========== 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;
                    box-shadow:
                        5px 5px 0 rgba(23,51,39,.26),
                        0 16px 30px rgba(0,0,0,.12),
                        inset 0 0 0 3px rgba(135,168,120,.28);
                }

/* 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;
                    box-shadow:
                        4px 4px 0 rgba(23,51,39,.20),
                        0 10px 18px rgba(0,0,0,.09),
                        inset 0 0 0 2px rgba(45,91,75,.16);
                    border-radius: 0px;
                    background: linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,.94) 100%);
                }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 360px at 18% 12%, rgba(135,168,120,.28) 0%, rgba(135,168,120,0) 58%),
        radial-gradient(760px 320px at 82% 18%, rgba(196,123,90,.18) 0%, rgba(196,123,90,0) 60%),
        linear-gradient(135deg, #2d5b4b 0%, #173327 100%);
}
.hero, [class*="hero"], section:first-of-type { color: rgba(250,248,243,.98); }
.hero, [class*="hero"], section:first-of-type * { caret-color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type h1,
.hero, [class*="hero"], section:first-of-type h2,
.hero, [class*="hero"], section:first-of-type h3,
.hero, [class*="hero"], section:first-of-type h4 {
    text-shadow: 0 2px 0 rgba(0,0,0,.18), 0 10px 30px rgba(0,0,0,.18);
}
.hero, [class*="hero"], section:first-of-type a:not([class]) { color: rgba(250,248,243,.98); }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list > * {
                    box-shadow:
                        4px 4px 0 rgba(23,51,39,.18),
                        0 12px 26px rgba(0,0,0,.10),
                        inset 0 0 0 2px rgba(135,168,120,.22);
                    border-radius: 0px;
                    background: rgba(250,248,243,.98);
                    transition: var(--transition);
                }

/* partners: centered */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}
.partner-grid > * {
    border-radius: 0px;
    box-shadow:
        4px 4px 0 rgba(23,51,39,.16),
        inset 0 0 0 2px rgba(45,91,75,.14);
    transition: var(--transition);
}

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-list {
    filter: saturate(1.02) contrast(1.02);
}

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * {
    border-radius: 0px;
    box-shadow:
        4px 4px 0 rgba(23,51,39,.18),
        0 10px 22px rgba(0,0,0,.10),
        inset 0 0 0 2px rgba(135,168,120,.22);
    background: rgba(250,248,243,.98);
}

/* cta: full-bg */
.cta-section {
    background:
        conic-gradient(from 180deg at 50% 50%, rgba(135,168,120,.95) 0deg, rgba(45,91,75,.95) 120deg, rgba(196,123,90,.85) 240deg, rgba(135,168,120,.95) 360deg),
        linear-gradient(135deg, #2d5b4b 0%, #173327 100%);
    color: rgba(250,248,243,.98);
    padding: 4rem 2rem;
    box-shadow:
        6px 6px 0 rgba(23,51,39,.28),
        0 18px 40px rgba(0,0,0,.16);
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    inset: -2px;
    background:
        radial-gradient(900px 240px at 18% 25%, rgba(250,248,243,.22) 0%, rgba(250,248,243,0) 60%),
        radial-gradient(800px 220px at 78% 10%, rgba(135,168,120,.28) 0%, rgba(135,168,120,0) 55%);
    opacity: .9;
    pointer-events: none;
}
.cta-section * { text-shadow: 0 2px 0 rgba(0,0,0,.18); }

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

/* 条件性装饰 */
header, .header, .navbar {
    box-shadow:
        0 8px 20px rgba(0,0,0,.12),
        0 2px 0 rgba(255,255,255,.35),
        4px 4px 0 rgba(23,51,39,.16);
    background: rgba(250,248,243,.86);
    border-radius: 0px;
    border-style: solid;
    border-color: rgba(45,91,75,.22);
    border-width: 0px;
    backdrop-filter: blur(6px) saturate(1.1);
}

/* 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; }
    .hero-inner { gap: 1.5rem; }
}
@media (max-width: 640px) {
    :root { --space-section: 3.2rem; --space-card: 1rem; --space-gap: 2.1rem; --transition: 0.15s cubic-bezier(.15,.95,.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; }

    header, .header, .navbar {
        backdrop-filter: blur(8px) saturate(1.15);
        box-shadow:
            0 10px 24px rgba(0,0,0,.14),
            4px 4px 0 rgba(23,51,39,.18);
    }
}