/* CSSVariantEngine v3.0 — news4-kaiyuan.com.cn */
/* Palette: spotlight-gold | Radius: generous | Shadow: layered glow */
/* Spacing: comfortable | Transition: smooth long */
/* Section layouts: {"news":"featured-left","features":"grid-2","hero":"centered","testimonials":"stacked","partners":"grid-4","faq":"two-column","stats":"inline","cta":"card-style"} */

:root {
    --color-primary: #e0b64d;
    --color-primary-dark: #966d1d;
    --color-accent: #a78bfa;
    --color-surface: #26263d;
    --color-text: #f0ede4;
    --rgb-primary: 224,182,77;
    --rgb-accent: 167,139,250;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 30px;
    --shadow-sm: 0 2px 6px rgba(0,0,0,.35), 0 0 18px rgba(var(--rgb-primary),.07);
    --shadow-md: 0 6px 24px rgba(0,0,0,.4), 0 0 36px rgba(var(--rgb-accent),.10);
    --shadow-lg: 0 16px 48px rgba(0,0,0,.5), 0 0 64px rgba(var(--rgb-primary),.12);
    --space-section: 4.5rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.65;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background:
        radial-gradient(1200px 600px at 50% -10%, rgba(var(--rgb-accent), .16) 0%, rgba(var(--rgb-primary), .06) 40%, transparent 70%),
        radial-gradient(900px 420px at 90% 10%, rgba(var(--rgb-primary), .08) 0%, transparent 60%),
        linear-gradient(180deg, #17172b 0%, #12121f 50%, #0f0f1a 100%);
    background-attachment: fixed;
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: var(--color-primary);
    text-shadow: 0 2px 20px rgba(var(--rgb-primary), .18);
}
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), .12);
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(340px 180px at 20% 0%, rgba(var(--rgb-primary), .08) 0%, transparent 60%),
        linear-gradient(145deg, rgba(38,38,61,.82) 0%, rgba(18,18,32,.94) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    box-shadow: 0 4px 18px rgba(var(--rgb-primary), .28), inset 0 1px 0 rgba(255,255,255,.25);
    color: #141423;
}
a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-shadow: 0 0 14px rgba(var(--rgb-primary), .25);
}

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

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

/* hero: centered */
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }

/* testimonials: stacked */
/* 垂直堆叠 */
.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

/* partners: grid-4 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 1.5); align-items: center; }

/* 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: 3rem; }

/* cta: card-style */
.cta-inner {
    background:
        radial-gradient(600px 280px at 50% -20%, rgba(var(--rgb-primary), .2) 0%, transparent 60%),
        linear-gradient(135deg, #2e2e4e 0%, #23233b 45%, #1a1a2e 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(var(--rgb-primary), .22);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
.page-main { max-width: 1200px; 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), .22);
    background:
        radial-gradient(420px 220px at 20% 0%, rgba(var(--rgb-primary), .12) 0%, transparent 60%),
        linear-gradient(145deg, rgba(46,46,70,.9) 0%, rgba(20,20,36,.95) 100%);
}
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(var(--rgb-accent), .5);
}

/* 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; }
}