/* CSSVariantEngine v3.0 — official-hth-live.com.cn */
/* Palette: neon-dusk | Radius: medium | Shadow: glow */
/* Spacing: airy | Transition: smooth */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"left-aligned","testimonials":"grid-3","partners":"grid-4","faq":"with-sidebar","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #a78bfa;
    --color-primary-dark: #6d28d9;
    --color-accent: #2dd4bf;
    --color-surface: #0b1020;
    --color-text: #eef2ff;
    --rgb-primary: 167,139,250;
    --rgb-accent: 45,212,191;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 16px;
    --shadow-sm: 0 0 12px rgba(var(--rgb-accent),.25);
    --shadow-md: 0 0 24px rgba(var(--rgb-accent),.4);
    --shadow-lg: 0 0 32px rgba(var(--rgb-accent),.6);
    --space-section: 4.5rem;
    --space-card: 1.25rem;
    --space-gap: 1.35rem;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
    accent-color: var(--color-accent);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 800px at 80% -10%, rgba(var(--rgb-primary),.18), transparent 60%), radial-gradient(1000px 600px at 0% 110%, rgba(var(--rgb-accent),.12), transparent 55%), var(--color-surface); caret-color: var(--color-accent); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); text-shadow: 0 0 20px rgba(var(--rgb-primary),.3); }
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), inset 0 0 0 1px rgba(var(--rgb-accent),.18); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, rgba(30,41,59,.85), rgba(15,23,42,.95)); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark) 55%, var(--color-accent)); box-shadow: 0 0 18px rgba(var(--rgb-accent),.35), inset 0 0 0 1px rgba(255,255,255,.2); animation: glowPulse 3.5s ease-in-out infinite; }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 10px rgba(var(--rgb-primary),.35); }

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

/* news: grid-3 */
/* 三列等宽网格 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: linear-gradient(135deg, rgba(var(--rgb-primary),.25), rgba(30,27,75,.55)); border-radius: var(--radius-xl); box-shadow: 0 0 28px rgba(var(--rgb-primary),.2), inset 0 0 0 1px rgba(var(--rgb-primary),.4); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); background: linear-gradient(135deg, rgba(var(--rgb-accent),.16), rgba(2,44,46,.5)); border-radius: var(--radius-xl); box-shadow: 0 0 28px rgba(var(--rgb-accent),.18), inset 0 0 0 1px rgba(var(--rgb-accent),.3); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; text-shadow: 0 0 30px rgba(var(--rgb-primary),.2); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: linear-gradient(135deg, rgba(236,72,153,.18), rgba(30,27,75,.5)); border-radius: var(--radius-xl); box-shadow: 0 0 28px rgba(236,72,153,.18), inset 0 0 0 1px rgba(236,72,153,.3); }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; background: linear-gradient(135deg, rgba(59,130,246,.18), rgba(15,23,42,.55)); border-radius: var(--radius-xl); box-shadow: 0 0 28px rgba(59,130,246,.18), inset 0 0 0 1px rgba(59,130,246,.3); }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; background: linear-gradient(135deg, rgba(251,191,36,.14), rgba(30,27,75,.45)); border-radius: var(--radius-xl); box-shadow: 0 0 28px rgba(251,191,36,.16), inset 0 0 0 1px rgba(251,191,36,.28); }

/* stats: big-number */
/* 大数字居中 */
.stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; background: radial-gradient(ellipse at center, rgba(var(--rgb-primary),.2), transparent 70%); border-radius: var(--radius-xl); }
.stats-grid .stat-value { font-size: 3rem; text-shadow: 0 0 28px rgba(var(--rgb-accent),.5); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background: linear-gradient(135deg, rgba(var(--rgb-primary),.28), rgba(var(--rgb-accent),.2)); border-radius: var(--radius-xl); box-shadow: 0 0 32px rgba(var(--rgb-accent),.25), inset 0 0 0 1px rgba(var(--rgb-accent),.3); }

/* 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), inset 0 0 0 1px rgba(var(--rgb-accent),.45); background: linear-gradient(145deg, rgba(45,55,82,.95), rgba(15,23,42,1)); }
a:not([class]):hover { color: var(--color-accent); text-shadow: 0 0 14px rgba(var(--rgb-accent),.6); }
.card { border-left: 3px solid var(--color-accent); }

/* Glow pulse animation */
@keyframes glowPulse {
    0%, 100% { box-shadow: inset 0 0 0 1px rgba(255,255,255,.2), 0 0 16px rgba(var(--rgb-accent),.3), 0 0 32px rgba(var(--rgb-primary),.15); }
    50% { box-shadow: inset 0 0 0 1px rgba(255,255,255,.35), 0 0 28px rgba(var(--rgb-accent),.55), 0 0 60px rgba(var(--rgb-primary),.3); }
}

/* 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; }
}