:root {
    --color-primary: #e63946;
    --color-primary-dark: #6a040f;
    --color-accent: #f77f00;
    --color-surface: #fff3b0;
    --color-text: #10002b;
    --rgb-primary: 230,57,70;
    --rgb-accent: 247,127,0;
    --radius-sm: 0px;
    --radius-md: 2px;
    --radius-lg: 3px;
    --radius-xl: 4px;
    --shadow-sm: 2px 2px 0 #10002b;
    --shadow-md: 4px 4px 0 #10002b, 8px 8px 0 rgba(230,57,70,.25);
    --shadow-lg: 6px 6px 0 #10002b, 12px 12px 0 rgba(247,127,0,.35);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.15s cubic-bezier(0.2, 0.9, 0.3, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: #fffdf7; caret-color: var(--color-primary); accent-color: var(--color-primary); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #10002b; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: #fffdf7; }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: #ffffff; outline: 2px solid rgba(16,0,43,.9); outline-offset: -2px; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: var(--color-primary); color: #fffdf7; box-shadow: 3px 3px 0 var(--color-primary-dark); }
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); background: #fff1f2; outline: 2px solid #9f1239; outline-offset: -2px; border-radius: var(--radius-xl); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); background: #ecfeff; outline: 2px solid #0e7490; outline-offset: -2px; border-radius: var(--radius-xl); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; background: #fdf2f8; outline: 2px solid #9d174d; outline-offset: -2px; border-radius: var(--radius-xl); }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; background: #f7fee7; outline: 2px solid #4d7c0f; outline-offset: -2px; border-radius: var(--radius-xl); } 
                .testimonial-list > * { flex: 0 0 100%; }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; background: #fffbeb; outline: 2px solid #b45309; outline-offset: -2px; border-radius: var(--radius-xl); }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); background: #eef2ff; outline: 2px solid #1e3a8a; outline-offset: -2px; border-radius: var(--radius-xl); }

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; background: #fef2f2; outline: 2px solid #991b1b; outline-offset: -2px; border-radius: var(--radius-xl); }
                .stats-grid .stat-value { font-size: 3rem; color: var(--color-primary-dark); text-shadow: 2px 2px 0 rgba(247,127,0,.45); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background: #f0fdfa; outline: 2px solid #0f766e; outline-offset: -2px; border-radius: var(--radius-xl); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); outline-color: var(--color-accent); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar { box-shadow: 0 4px 0 #10002b, 0 8px 0 rgba(247,127,0,.28); background: #fffdf7; }

/* 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; }
}