:root {
    --color-primary: #6c8a6a;
    --color-primary-dark: #4f6b4d;
    --color-accent: #c47b5a;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 108,138,106;
    --rgb-accent: 196,123,90;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 26px;

    --shadow-sm:
        0 1px 0 rgba(0,0,0,.04),
        0 10px 22px rgba(45,45,45,.06);
    --shadow-md:
        0 1px 0 rgba(0,0,0,.06),
        0 12px 28px rgba(45,45,45,.08),
        0 2px 6px rgba(45,45,45,.05);
    --shadow-lg:
        0 1px 0 rgba(0,0,0,.08),
        0 18px 44px rgba(45,45,45,.12),
        0 6px 16px rgba(45,45,45,.08);

    --space-section: 4.25rem;
    --space-card: 1.6rem;
    --space-gap: 1.6rem;

    --transition: 0.52s cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 650;
    --body-line-height: 1.72;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(900px 600px at 10% 0%, rgba(135,168,120,.16), transparent 55%),
        radial-gradient(800px 520px at 90% 10%, rgba(196,123,90,.14), transparent 50%),
        linear-gradient(180deg, #fbf9f4 0%, #f6f3ea 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(0,0,0,.06),
        0 10px 24px rgba(45,45,45,.08),
        0 0 0 1px rgba(135,168,120,.18) inset,
        0 0 0 0 rgba(196,123,90,.0);
    padding: var(--space-card);
    transition: var(--transition);
    background:
        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(251,250,246,.9) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow:
        0 1px 0 rgba(0,0,0,.06),
        0 10px 22px rgba(45,45,45,.08);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 1px 0 rgba(255,255,255,.55);
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid {
                    column-count: 2;
                    column-gap: var(--space-gap);
                }
                .news-grid .card {
                    break-inside: avoid;
                    margin-bottom: var(--space-gap);
                    background:
                        radial-gradient(700px 240px at 0% 0%, rgba(135,168,120,.16), transparent 55%),
                        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(252,250,246,.92) 100%);
                }

/* features: grid-3 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
}
.feature-list .card {
    border-radius: calc(var(--radius-lg) - 2px);
    box-shadow:
        0 1px 0 rgba(0,0,0,.06),
        0 14px 34px rgba(45,45,45,.10),
        0 0 0 1px rgba(196,123,90,.14) inset;
    background:
        linear-gradient(135deg, rgba(135,168,120,.12) 0%, rgba(255,255,255,.65) 34%, rgba(196,123,90,.10) 100%),
        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(252,250,246,.92) 100%);
}

/* hero: centered */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.hero-content .card,
.hero-content [class*="card"]{
    background:
        radial-gradient(900px 300px at 50% 0%, rgba(196,123,90,.18), transparent 55%),
        radial-gradient(680px 260px at 10% 15%, rgba(135,168,120,.16), transparent 60%),
        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(252,250,246,.92) 100%);
}

/* testimonials: grid-3 */
.testimonial-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
}
.testimonial-list .card {
    background:
        radial-gradient(600px 260px at 100% 0%, rgba(135,168,120,.16), transparent 55%),
        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(252,250,246,.92) 100%);
    box-shadow:
        0 1px 0 rgba(0,0,0,.06),
        0 16px 40px rgba(45,45,45,.11),
        0 0 0 1px rgba(135,168,120,.16) inset;
}

/* partners: centered */
.partner-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}
.partner-grid .card{
    background:
        linear-gradient(135deg, rgba(196,123,90,.12) 0%, rgba(255,255,255,.55) 45%, rgba(135,168,120,.10) 100%);
}

/* faq: two-column */
.faq-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-gap);
}
.faq-list .card{
    background:
        linear-gradient(180deg, rgba(250,248,243,.98) 0%, rgba(252,250,246,.92) 100%);
}

/* stats: grid-4 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-gap);
    text-align: center;
}
.stats-grid .card{
    box-shadow:
        0 1px 0 rgba(0,0,0,.06),
        0 14px 34px rgba(45,45,45,.09),
        0 0 0 1px rgba(196,123,90,.12) inset;
}

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

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 1px 0 rgba(0,0,0,.10),
        0 22px 58px rgba(45,45,45,.14),
        0 10px 24px rgba(45,45,45,.10),
        0 0 0 1px rgba(135,168,120,.24) inset;
}

a:not([class]):hover {
    color: var(--color-accent);
    text-shadow:
        0 1px 0 rgba(255,255,255,.6),
        0 10px 24px rgba(196,123,90,.18);
}

.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 15% 5%, rgba(135,168,120,.35), transparent 55%),
        radial-gradient(900px 420px at 85% 0%, rgba(196,123,90,.28), transparent 55%),
        linear-gradient(135deg, #f7f2e6 0%, rgba(135,168,120,.12) 34%, rgba(196,123,90,.12) 68%, #f6f3ea 100%);
}

.card {
    border-left: 3px solid rgba(135,168,120,.85);
    border-radius: var(--radius-lg);
    background-clip: padding-box;
}

/* 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: 2.25rem;
        --space-card: 1.1rem;
        --space-gap: 0.95rem;
        --radius-md: 13px;
        --radius-lg: 16px;
        --transition: 0.5s cubic-bezier(0.2, 0.85, 0.25, 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; }
}