:root {
    --color-primary: #9a5b3a;
    --color-primary-dark: #7a4630;
    --color-accent: #87a878;
    --color-surface: #faf8f3;
    --color-text: #2d2d2d;
    --rgb-primary: 154,91,58;
    --rgb-accent: 135,168,120;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 18px;
    --radius-xl: 24px;

    --shadow-sm:
        0 1px 2px rgba(45,45,45,0.05),
        0 6px 14px rgba(45,45,45,0.06);
    --shadow-md:
        0 4px 10px rgba(45,45,45,0.06),
        0 18px 36px -10px rgba(45,45,45,0.16);
    --shadow-lg:
        0 10px 26px rgba(45,45,45,0.10),
        0 24px 56px -18px rgba(45,45,45,0.20),
        0 2px 0 rgba(255,255,255,0.65) inset;

    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;

    --transition: 420ms cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, rgba(250,248,243,1) 0%, rgba(250,248,243,0.96) 100%); }
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-lg);
    box-shadow:
        0 1px 0 rgba(255,255,255,0.7) inset,
        0 4px 10px rgba(0,0,0,0.05),
        0 20px 40px -12px rgba(0,0,0,0.14);
    padding: var(--space-card);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition),
        background-color var(--transition),
        color var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(250,248,243,0.92) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        background-color var(--transition),
        color var(--transition),
        border-color var(--transition);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 0 rgba(255,255,255,0.5); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 6px 22px rgba(135,168,120,0.25); }

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

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card {
                    display: grid;
                    grid-template-columns: 280px 1fr;
                }

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

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-content { color: #2d2d2d; }
.hero-content h1, .hero-content h2, .hero-content h3 { text-shadow: 0 10px 30px rgba(45,45,45,0.10); }

/* 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 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* 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: #2d2d2d; text-shadow: 0 18px 38px rgba(0,0,0,0.10); }

/* cta: card-style */
.cta-inner {
    background:
        radial-gradient(1200px 420px at 10% 0%, rgba(135,168,120,0.20) 0%, rgba(135,168,120,0.00) 55%),
        radial-gradient(900px 360px at 92% 18%, rgba(196,123,90,0.18) 0%, rgba(196,123,90,0.00) 52%),
        linear-gradient(180deg, rgba(255,255,255,0.92) 0%, rgba(250,248,243,0.96) 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow:
        0 1px 0 rgba(255,255,255,0.7) inset,
        0 10px 30px rgba(45,45,45,0.06),
        0 40px 90px -26px rgba(45,45,45,0.18);
}

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }
.page-main { filter: drop-shadow(0 1px 0 rgba(255,255,255,0.55)); }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-5px);
    box-shadow:
        0 1px 0 rgba(255,255,255,0.75) inset,
        0 10px 26px rgba(45,45,45,0.09),
        0 28px 64px -18px rgba(45,45,45,0.22);
    border-color: rgba(135,168,120,0.55);
}
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid rgba(154,91,58,0.95); }
header, .header, .navbar {
    box-shadow:
        0 1px 0 rgba(255,255,255,0.7) inset,
        0 2px 10px rgba(45,45,45,0.06),
        0 16px 40px -18px rgba(45,45,45,0.18);
}

/* 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; }
}