/* CSSVariantEngine v3.0 — go-jisudianjing.net.cn */
/* Palette: cyber-glow | Radius: medium-rounded | Shadow: accent-glow */
/* Spacing: asymmetric-mixed | Transition: glow-ease */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"single-column","stats":"grid-4","cta":"card-style"} */

:root {
    --color-primary: #1a1a2e;
    --color-primary-dark: #0f0f1a;
    --color-accent: #00f5d4;
    --color-surface: #16213e;
    --color-text: #f0f9ff;
    --rgb-primary: 26, 26, 46;
    --rgb-accent: 0, 245, 212;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent), 0.2);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent), 0.4);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent), 0.6);
    --space-section: 3.1rem;
    --space-card: 1.3rem;
    --space-gap: 0.5rem;
    --transition: 0.4s ease-in-out;
    --heading-weight: 600;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background-color: var(--color-primary-dark); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: #ffffff; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); border: 2px solid var(--color-accent); background-color: var(--color-surface); animation: subtlePulse 3.5s ease-in-out infinite; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background-color: var(--color-accent); color: var(--color-primary-dark); border: 2px solid var(--color-accent); }
a:not([class]) { color: var(--color-accent); transition: var(--transition); }

/* ========== 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; background-color: #0f3460; border: 2px solid #7209b7; box-shadow: 0 0 28px rgba(114, 9, 183, 0.35); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-inner { background-color: #1a1a2e; border-left: 4px solid var(--color-accent); padding-left: 2rem; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; }
.testimonial-list .card { border-color: #f72585; box-shadow: 0 0 22px rgba(247, 37, 133, 0.35); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 25s ease-in-out infinite; }
.partner-grid > * { border: 1px solid var(--color-accent); padding: 1rem 2rem; background-color: rgba(var(--rgb-accent), 0.08); border-radius: var(--radius-sm); }
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes subtlePulse { 0%, 100% { box-shadow: 0 0 24px rgba(var(--rgb-accent), 0.4); } 50% { box-shadow: 0 0 34px rgba(var(--rgb-accent), 0.55); } }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background-color: #1a1a2e; border: 2px solid #4cc9f0; border-radius: var(--radius-md); padding: 1.2rem; margin-bottom: 1rem; }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; text-align: center; }
.stats-grid > * { background-color: #7209b7; border-radius: var(--radius-md); padding: 1.5rem; color: white; box-shadow: 0 0 20px rgba(114, 9, 183, 0.4); }

/* cta: card-style */
.cta-inner { background: linear-gradient(135deg, #0f3460 0%, #16213e 100%); border-radius: var(--radius-xl); padding: 3rem; text-align: center; border: 3px solid var(--color-accent); box-shadow: var(--shadow-lg); }

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-6px); box-shadow: 0 0 36px rgba(var(--rgb-accent), 0.75); border-color: #ffffff; }
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover { box-shadow: 0 0 32px rgba(var(--rgb-accent), 0.7); transform: scale(1.03); }
header, .header, .navbar { box-shadow: 0 0 20px rgba(var(--rgb-accent), 0.3); background-color: rgba(var(--rgb-primary), 0.95); backdrop-filter: blur(8px); border-bottom: 1px solid 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; }
}