/* CSSVariantEngine v3.0 — link-chcn-huatihui.com.cn */
/* Palette: ember-coral + acid-lime on deep forest | Radius: faceted | Shadow: layered edge */
/* Section layouts: {"news":"grid-3","features":"grid-2","hero":"left-aligned","testimonials":"grid-3","partners":"scroll","faq":"two-column","stats":"inline","cta":"centered"} */

:root {
    --color-primary: #ff6b3d;
    --color-primary-dark: #b81f12;
    --color-accent: #d9ff3d;
    --color-surface: #0a1814;
    --color-text: #f7ecdf;
    --rgb-primary: 255,107,61;
    --rgb-accent: 217,255,61;
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --shadow-sm: 0 2px 0 rgba(0,0,0,.28), 0 2px 8px rgba(0,0,0,.18);
    --shadow-md: 0 6px 0 rgba(0,0,0,.3), 0 10px 20px rgba(var(--rgb-primary),.14), 0 18px 36px rgba(0,0,0,.26);
    --shadow-lg: 0 10px 0 rgba(0,0,0,.34), 0 16px 24px rgba(var(--rgb-primary),.18), 0 28px 56px rgba(0,0,0,.34);
    --space-section: 4.5rem;
    --space-card: 1.6rem;
    --space-gap: 1.35rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.75;
    caret-color: var(--color-primary);
    accent-color: var(--color-accent);
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(circle at 85% 10%, rgba(217,255,61,.1), transparent 32%),
        radial-gradient(circle at 12% 88%, rgba(255,107,61,.14), transparent 40%),
        linear-gradient(145deg, #06110e 0%, #0d241e 55%, #050d0b 100%);
    background-color: #06110e;
}
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background: linear-gradient(180deg, rgba(255,255,255,.018), rgba(217,255,61,.035) 50%, rgba(0,0,0,.08));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.04), inset 0 -1px 0 rgba(0,0,0,.3);
}
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(217,255,61,.08), inset 0 0 48px rgba(255,255,255,.02);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(145deg, rgba(255,107,61,.14), rgba(217,255,61,.04) 42%, rgba(10,24,20,.94) 88%), linear-gradient(135deg, #14362e, #0b211c);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, #ff8a4d 0%, var(--color-primary) 38%, var(--color-primary-dark) 100%);
    box-shadow: 0 4px 0 rgba(0,0,0,.28), 0 8px 18px rgba(255,107,61,.32), inset 0 1px 0 rgba(255,255,255,.25), inset 0 -2px 0 rgba(0,0,0,.2);
    color: #08120f;
    text-shadow: 0 1px 0 rgba(255,255,255,.15);
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 1px 8px rgba(255,107,61,.18);
}

/* ========== 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); }

/* features: grid-2 */
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space-gap) * 1.5); }

/* hero: left-aligned */
.hero-content {
    text-align: left;
    max-width: 600px;
    text-shadow: 0 2px 18px rgba(0,0,0,.35);
}

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* partners: scroll */
/* 自动滚动 */
.partner-grid {
    display: flex;
    gap: 2.4rem;
    overflow: hidden;
    animation: partnerScroll 22s linear infinite;
}
@keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }

/* stats: inline */
/* 水平排列 */
.stats-grid { display: flex; justify-content: center; gap: 3.4rem; }

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }

/* 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(-5px);
    box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(217,255,61,.16), inset 0 0 64px rgba(255,107,61,.08);
}
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 12px rgba(217,255,61,.35);
}

/* 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: 1.85rem;
        --space-card: 1.1rem;
        --space-gap: 0.85rem;
    }
    .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; }
}