:root {
    --color-primary: #0f4c5c;
    --color-primary-dark: #093344;
    --color-accent: #ffb020;
    --color-surface: #f4f7fb;
    --color-text: #0b1620;
    --rgb-primary: 15,76,92;
    --rgb-accent: 255,176,32;
    --radius-sm: 0;
    --radius-md: 2px;
    --radius-lg: 0px;
    --radius-xl: 4px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 160ms ease-in-out;
    --heading-weight: 700;
    --body-line-height: 1.6;
    --color-border: rgba(9, 51, 68, .16);
    --color-muted: rgba(11, 22, 32, .72);
}

body { color: var(--color-text); line-height: var(--body-line-height); }
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: none;
    padding: var(--space-card);
    transition: var(--transition);
    background: #ffffff;
    border: 1px solid var(--color-border);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid rgba(var(--rgb-primary), .25);
    background: #ffffff;
    color: var(--color-primary-dark);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration: none;
}
a:not([class]):focus, a:not([class]){ outline: none; }
a:not([class]):hover { color: var(--color-accent); }

.card:hover, [class*="card"]:hover {
    transform: translateY(-3px);
    box-shadow: none;
    border-color: rgba(var(--rgb-accent), .55);
}
a:not([class]):hover { color: var(--color-accent); }

.hero, [class*="hero"], section:first-of-type {
    background: linear-gradient(135deg, #0f4c5c 0%, #093344 100%);
    color: #f7fbff;
    border-bottom: 1px solid rgba(255,255,255,.12);
}

.faq-list { max-width: 800px; margin: 0 auto; }

/* ========== 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: horizontal */
/* 水平滚动 */
                .feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
                .feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }

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

/* 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; }

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

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }

/* cta: full-bg */
.cta-section {
    background: var(--color-primary);
    color: #ffffff;
    padding: 4rem 2rem;
    border-top: 1px solid rgba(255,255,255,.08);
    border-bottom: 1px solid rgba(0,0,0,.08);
}

.page-main { max-width: 1400px; margin: 0 auto; }

/* 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; }
}