:root {
    --color-primary: #6b705c;
    --color-primary-dark: #4f5545;
    --color-accent: #c44536;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 107,112,92;
    --rgb-accent: 196,69,54;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 0px;
    --radius-xl: 2px;
    --shadow-sm:
        4px 4px 0 rgba(196, 69, 54, .35),
        0 1px 0 rgba(0,0,0,.25);
    --shadow-md:
        4px 4px 0 rgba(0,0,0,.18),
        8px 8px 0 rgba(196, 69, 54, .12),
        0 1px 0 rgba(0,0,0,.22);
    --shadow-lg:
        6px 6px 0 rgba(0,0,0,.18),
        12px 12px 0 rgba(107, 112, 92, .10),
        0 1px 0 rgba(0,0,0,.22);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.15s cubic-bezier(.2,.85,.2,1);
    --heading-weight: 700;
    --body-line-height: 1.65;
    --outline-color: rgba(196, 69, 54, .75);
    --page-bg: #f5f1e8;
    --card-border: rgba(26, 26, 26, .18);
    --muted-border: rgba(26, 26, 26, .10);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: var(--page-bg); }
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:
        4px 4px 0 rgba(0,0,0,.22),
        0 0 0 2px rgba(196, 69, 54, .22),
        10px 10px 0 rgba(107,112,92,.10);
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.55));
    border: 3px solid var(--card-border);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
    border: 2px solid rgba(26,26,26,.25);
}
a:not([class]) { color: var(--color-accent); transition: var(--transition); text-decoration-thickness: 2px; text-underline-offset: 2px; }

/* ========== 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);
                    box-shadow:
                        4px 4px 0 rgba(0,0,0,.20),
                        0 0 0 2px rgba(107,112,92,.18),
                        12px 12px 0 rgba(196,69,54,.08);
                    border-color: var(--muted-border);
                    background:
                        radial-gradient(120% 120% at 10% 0%, rgba(196,69,54,.10), transparent 55%),
                        linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,255,255,.52));
                }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list .card {
    border-radius: var(--radius-sm);
    box-shadow:
        4px 4px 0 rgba(196, 69, 54, .28),
        0 0 0 2px rgba(0,0,0,.10);
    border-color: rgba(196, 69, 54, .30);
    background:
        linear-gradient(135deg, rgba(107,112,92,.14), rgba(245,241,232,.95) 40%),
        linear-gradient(180deg, rgba(255,255,255,.70), rgba(255,255,255,.52));
}

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-content * { text-shadow: 1px 1px 0 rgba(255,255,255,.35); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.testimonial-list .card {
    border-radius: var(--radius-sm);
    border-color: rgba(26,26,26,.14);
    box-shadow:
        4px 4px 0 rgba(0,0,0,.22),
        0 0 0 2px rgba(196, 69, 54, .18),
        8px 8px 0 rgba(107,112,92,.12);
    background:
        linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.52));
}

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }
.partner-grid .card {
    border-radius: 0;
    border-color: rgba(26,26,26,.12);
    box-shadow:
        4px 4px 0 rgba(107,112,92,.26),
        0 0 0 2px rgba(196, 69, 54, .12);
    background:
        conic-gradient(from 180deg at 50% 50%, rgba(196,69,54,.12), rgba(107,112,92,.16), rgba(245,241,232,.92) 40%, rgba(196,69,54,.08));
}

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
.faq-wrapper .card {
    border-radius: var(--radius-sm);
    border-color: rgba(196,69,54,.22);
    box-shadow:
        4px 4px 0 rgba(0,0,0,.22),
        0 0 0 2px rgba(196, 69, 54, .20);
    background:
        radial-gradient(90% 140% at 0% 0%, rgba(196,69,54,.12), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.76), rgba(255,255,255,.50));
}

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card {
    border-radius: 0;
    border-color: rgba(26,26,26,.16);
    box-shadow:
        4px 4px 0 rgba(196, 69, 54, .22),
        0 0 0 2px rgba(0,0,0,.10),
        10px 10px 0 rgba(0,0,0,.06);
    background:
        linear-gradient(135deg, rgba(245,241,232,1), rgba(255,255,255,.55));
}

/* cta: full-bg */
.cta-section {
    background:
        linear-gradient(90deg, rgba(196,69,54,.96), rgba(107,112,92,.92));
    color: #fff;
    padding: 4rem 2rem;
    box-shadow:
        0 18px 0 rgba(0,0,0,.10),
        inset 0 0 0 3px rgba(255,255,255,.25);
    border-top: 3px solid rgba(0,0,0,.25);
    border-bottom: 3px solid rgba(0,0,0,.25);
}
.cta-section * { text-shadow: 1px 1px 0 rgba(0,0,0,.20); }

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

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(120% 120% at 10% 0%, rgba(196,69,54,.16), transparent 55%),
        linear-gradient(135deg, var(--color-accent), var(--color-primary-dark));
    border-top: 3px solid rgba(0,0,0,.22);
    border-bottom: 3px solid rgba(0,0,0,.22);
    box-shadow:
        10px 10px 0 rgba(0,0,0,.10),
        inset 0 0 0 3px rgba(255,255,255,.12);
}
.card { border: 3px solid rgba(var(--rgb-accent), .18); }
header, .header, .navbar {
    background: transparent;
    box-shadow: none;
}

/* 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; }
    :root { --transition: 0.12s cubic-bezier(.2,.9,.2,1); }
}
@media (max-width: 640px) {
    :root { --space-section: 2rem; --space-card: 1rem; --space-gap: 0.75rem; --radius-md: 2px; --radius-lg: 0px; }
    .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; }
    .card, [class*="card"] {
        box-shadow:
            3px 3px 0 rgba(0,0,0,.22),
            0 0 0 2px rgba(196,69,54,.18);
    }
}