:root {
    --color-primary: #0b3d5c;
    --color-primary-dark: #062637;
    --color-accent: #f59e0b;
    --color-surface: #fffdf7;
    --color-text: #1c1917;
    --rgb-primary: 11,61,92;
    --rgb-accent: 245,158,11;
    --radius-sm: 3px;
    --radius-md: 10px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 1px 2px rgba(11,61,92,.08), 0 2px 6px rgba(11,61,92,.06);
    --shadow-md: 0 4px 10px rgba(11,61,92,.10), 0 12px 28px rgba(11,61,92,.12), 0 1px 0 rgba(255,255,255,.6) inset;
    --shadow-lg: 0 8px 20px rgba(11,61,92,.12), 0 28px 60px rgba(11,61,92,.18), 0 0 0 1px rgba(245,158,11,.08);
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.5s cubic-bezier(.22,.61,.36,1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, #fffdf7 0%, #fef9ee 50%, #fffdf7 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(180deg, rgba(255,253,247,1) 0%, rgba(254,249,238,1) 100%); }
section:nth-of-type(even), .section:nth-of-type(even) { background: linear-gradient(135deg, #0b3d5c 0%, #062637 60%, #0b3d5c 100%); color: #fffdf7; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(160deg, #ffffff 0%, #fffdf7 55%, #fef6e6 100%); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-image: linear-gradient(135deg, #0b3d5c 0%, #062637 100%); color: #fffdf7; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: full-bg */
.cta-section { background: linear-gradient(135deg, #0b3d5c 0%, #062637 45%, #0b3d5c 100%); color: #fffdf7; padding: 4rem 2rem; }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
.hero, [class*="hero"], section:first-of-type { background: linear-gradient(135deg, #0b3d5c 0%, #062637 50%, #0b3d5c 100%); }
.card { border: 1px solid rgba(var(--rgb-primary), .12); }
header, .header, .navbar { box-shadow: 0 2px 10px rgba(11,61,92,.10), 0 1px 0 rgba(245,158,11,.18) inset; background: linear-gradient(180deg, #fffdf7 0%, #fef9ee 100%); }

/* 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; }
}