/* CSSVariantEngine v3.0 — longshidai.com */
/* Palette: amber-navy | Radius: sharp | Shadow: hard-offset */
/* Spacing: full-strip | Transition: snappy */
/* Section layouts: {"news":"list-view","features":"grid-3","hero":"minimal","testimonials":"carousel","partners":"centered","faq":"two-column","stats":"grid-4","cta":"split"} */

:root {
    --color-primary: #d97706;
    --color-primary-dark: #92400e;
    --color-accent: #fef3c7;
    --color-surface: #fffbeb;
    --color-text: #0f172a;
    --rgb-primary: 217, 119, 6;
    --rgb-accent: 254, 243, 199;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0px var(--color-primary-dark);
    --shadow-md: 4px 4px 0px var(--color-primary-dark);
    --shadow-lg: 6px 6px 0px rgba(15, 23, 42, 0.2);
    --space-section: 5.5rem;
    --space-card: 2.1rem;
    --space-gap: 1.6rem;
    --transition: 0.15s ease-out;
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-text); }
section:nth-child(odd) { background-color: #ffffff; }
section:nth-child(even) { background-color: var(--color-surface); }
section.dark-strip { background-color: #0f172a; color: #ffffff; }
section.dark-strip h1, section.dark-strip h2, section.dark-strip h3, section.dark-strip h4 { color: #ffffff; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); border-bottom: 2px solid var(--color-primary-dark); }
.card, [class*="card"] { border: 3px solid var(--color-primary-dark); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background-color: #ffffff; }
.card:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0px var(--color-primary-dark); }
.btn, button[class*="btn"], a[class*="btn"] { border: 3px solid var(--color-primary-dark); border-radius: var(--radius-md); background-color: var(--color-primary); color: #ffffff; padding: 0.75rem 1.5rem; font-weight: 600; box-shadow: var(--shadow-sm); transition: var(--transition); }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { transform: translate(2px, 2px); box-shadow: 0 0 0px var(--color-primary-dark); }
a:not([class]) { color: var(--color-primary-dark); transition: var(--transition); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:not([class]):hover { color: var(--color-primary); }

/* ========== 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: minimal */
.hero { padding: 2rem 0; background-color: #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: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid img { filter: grayscale(100%) contrast(120%); border: 2px solid #e2e8f0; padding: 0.5rem; border-radius: 0; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-item { border: 2px solid var(--color-primary-dark); border-left: 4px solid var(--color-primary); padding: 1.25rem; background-color: #ffffff; border-radius: 0; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stat-card { border: 2px solid #fef3c7; background-color: #0f172a; color: #ffffff; padding: 2rem; border-radius: 0; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.cta-section { background-color: var(--color-primary); color: #ffffff; }
.cta-section * { color: #ffffff !important; }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card { border-left: 4px solid var(--color-primary); }
header, .header, .navbar { background: #0f172a; border-bottom: 3px solid var(--color-primary); color: #ffffff; padding: 1rem 0; }
.caret-color { caret-color: var(--color-primary); }
* { accent-color: var(--color-primary); }

/* 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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}