/* CSSVariantEngine v3.0 — go-douyu.tj.cn */
/* Palette: deep-teal | Radius: pillowy | Shadow: airy multi-layer */
/* Spacing: airy-rhythm | Transition: smooth glide */
/* Section layouts: {"news":"grid-3","features":"centered","hero":"centered","testimonials":"grid-3","partners":"scroll","faq":"single-column","stats":"big-number","cta":"full-bg"} */

:root {
    --color-primary: #0f6d7d;
    --color-primary-dark: #0a4b57;
    --color-accent: #2dd4bf;
    --color-surface: #eefbfb;
    --color-text: #08333d;
    --rgb-primary: 15,109,125;
    --rgb-accent: 45,212,191;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 2px rgba(8,51,61,.07), 0 3px 8px -3px rgba(8,51,61,.10);
    --shadow-md: 0 22px 38px -24px rgba(8,51,61,.34), 0 9px 18px -11px rgba(8,51,61,.16), 0 0 0 1px rgba(45,212,191,.16);
    --shadow-lg: 0 38px 68px -32px rgba(8,51,61,.40), 0 16px 30px -16px rgba(8,51,61,.22), 0 0 0 1px rgba(45,212,191,.20);
    --space-section: 5.5rem;
    --space-card: 2.25rem;
    --space-gap: 1.75rem;
    --transition: 0.42s cubic-bezier(.22,.68,.32,1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { background: radial-gradient(circle at 6% -14%, #d6fbf4 0%, rgba(214,251,244,0) 58%), linear-gradient(180deg, #f7fdfd 0%, #e8f6f7 100%); color: var(--color-text); line-height: var(--body-line-height); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
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); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: var(--transition); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); }

/* ========== 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: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

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

/* 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: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* faq: single-column */
.faq-list { max-width: 800px; margin: 0 auto; }

/* stats: big-number */
/* 大数字居中 */
                .stats-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
                .stats-grid .stat-value { font-size: 3rem; color: var(--color-primary); text-shadow: 0 12px 26px rgba(45,212,191,.35); }

/* cta: full-bg */
.cta-section { background: linear-gradient(122deg, #0f6d7d 0%, #0c5866 44%, #073b47 100%); color: #f0fdfa; padding: 4rem 2rem; box-shadow: inset 0 1px 0 rgba(45,212,191,.38), 0 34px 64px -34px rgba(8,51,61,.58); text-shadow: 0 2px 20px rgba(45,212,191,.28); }

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

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid var(--color-accent); }
header, .header, .navbar { background: linear-gradient(180deg, rgba(9,58,68,.96) 0%, rgba(9,58,68,.80) 100%); backdrop-filter: blur(16px) saturate(1.35); box-shadow: 0 1px 0 rgba(45,212,191,.30), 0 24px 46px -30px rgba(8,51,61,.62); }

/* 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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.85rem; --radius-lg: 18px; --radius-md: 12px; }
    .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; }
}