:root {
    --color-primary: #0f3d3e;
    --color-primary-dark: #0b2f2f;
    --color-accent: #f2c94c;
    --color-surface: #fbf6ea;
    --color-text: #142126;
    --rgb-primary: 15,61,62;
    --rgb-accent: 242,201,76;
    --radius-sm: 0px;
    --radius-md: 4px;
    --radius-lg: 6px;
    --radius-xl: 6px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #ffffff; }
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: 2px; box-shadow: none; padding: var(--space-card); transition: var(--transition); border: 1px solid rgba(20,33,38,0.12); background: #ffffff; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: 4px; transition: var(--transition); border: 1px solid rgba(20,33,38,0.16); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }
a:not([class]):hover { text-decoration: none; color: var(--color-accent); }

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }
                .news-grid > * { background: #ffffff; border: 1px solid rgba(20,33,38,0.10); border-radius: 2px; padding: var(--space-card); }
                .news-grid > *:not(:first-child) { background: #fbf6ea; border-color: rgba(20,33,38,0.09); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list > * { background: #ffffff; border: 1px solid rgba(20,33,38,0.10); border-radius: 2px; padding: var(--space-card); }

/* hero: minimal */
.hero { padding: 2rem 0; }
.hero-content { max-width: 560px; }
.hero-content, .hero { color: var(--color-text); }
.hero-content > * { background: transparent; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; }
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list > * { background: #fbf6ea; border: 1px solid rgba(20,33,38,0.10); border-radius: 2px; padding: var(--space-card); }

/* 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%); } }
                .partner-grid > * { background: #ffffff; border: 1px solid rgba(20,33,38,0.10); border-radius: 2px; padding: 0.75rem 1rem; }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-list, .faq-list > * { background: transparent; }
.faq-list > * { border-radius: 2px; border: 1px solid rgba(20,33,38,0.10); background: #ffffff; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid > * { background: #0f3d3e; color: #ffffff; border: 1px solid rgba(255,255,255,0.18); border-radius: 2px; padding: var(--space-card); }
.stats-grid > *:nth-child(even) { background: #fbf6ea; color: var(--color-text); border-color: rgba(20,33,38,0.10); }

/* cta: full-bg */
.cta-section { background: #0f3d3e; color: #ffffff; padding: 4rem 2rem; border-top: 1px solid rgba(255,255,255,0.16); border-bottom: 1px solid rgba(255,255,255,0.16); }
.cta-section * { color: inherit; }
.cta-section .card, .cta-section [class*="card"] { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.20); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }

/* 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; }
}