/* CSSVariantEngine v3.0 — zrg6-huatihuitiyu.com.cn */
/* Palette: pine-ember | Radius: generous round | Shadow: layered soft */
/* Spacing: comfortable | Transition: long ease-out */
/* Section layouts: {"news":"featured-left","features":"horizontal","hero":"overlay","testimonials":"carousel","partners":"centered","faq":"with-sidebar","stats":"big-number","cta":"split"} */

:root {
    --color-primary: #0f766e;
    --color-primary-dark: #134e4a;
    --color-accent: #f97316;
    --color-surface: #faf6f0;
    --color-text: #292524;
    --color-bright: #ffffff;
    --color-cream: #fbf5ec;
    --color-dark: #1c1917;
    --rgb-primary: 15,118,110;
    --rgb-accent: 249,115,22;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 36px;
    --shadow-sm: 0 1px 2px rgba(28,25,23,.06), 0 6px 16px -6px rgba(15,118,110,.12);
    --shadow-md: 0 18px 40px -14px rgba(15,118,110,.2), 0 4px 12px rgba(28,25,23,.06), inset 0 1px 0 rgba(255,255,255,.7);
    --shadow-lg: 0 32px 70px -18px rgba(28,25,23,.3), 0 12px 28px rgba(15,118,110,.14);
    --grad-border: linear-gradient(135deg, rgba(var(--rgb-primary), .22), rgba(var(--rgb-accent), .38), rgba(var(--rgb-primary), .22));
    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, var(--color-surface) 0%, #f1e7dc 100%); }
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, var(--color-bright) 0%, var(--color-cream) 100%); }
.card, [class*="card"] { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(145deg, var(--color-bright) 0%, var(--color-cream) 100%) padding-box, var(--grad-border) border-box; border: 1px solid transparent; }
.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-primary-dark) 100%); color: var(--color-bright); box-shadow: 0 14px 30px -10px rgba(15,118,110,.5), inset 0 1px 0 rgba(255,255,255,.25); text-shadow: 0 1px 2px rgba(0,0,0,.2); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(var(--rgb-primary), .3); }

/* ========== 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: horizontal */
/* 水平滚动 */
.feature-list { display: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--color-bright) 0%, var(--color-cream) 100%); box-shadow: var(--shadow-md); transition: var(--transition); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
.hero { position: relative; min-height: 70vh; display: flex; align-items: center; background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 48%, #115e59 100%); box-shadow: var(--shadow-lg); }
.hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
.testimonial-list { display: flex; overflow: hidden; background: linear-gradient(90deg, rgba(var(--rgb-primary), .08), rgba(var(--rgb-accent), .08)); border-radius: var(--radius-lg); }
.testimonial-list > * { flex: 0 0 100%; }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
.faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }

/* 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-dark); text-shadow: 0 2px 0 rgba(var(--rgb-accent), .18), 0 10px 24px rgba(var(--rgb-primary), .22); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background: radial-gradient(circle at 15% 20%, rgba(var(--rgb-accent), .16), transparent 55%), linear-gradient(135deg, var(--color-dark) 0%, #292524 60%, #3f3f46 100%); border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); }

/* 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); text-decoration-color: rgba(var(--rgb-accent), .55); }
.card { border: 1px solid transparent; }
header, .header, .navbar { background-image: linear-gradient(180deg, rgba(255,255,255,.82), rgba(250,246,240,.76)), linear-gradient(90deg, rgba(var(--rgb-primary), .4), rgba(var(--rgb-accent), .6), rgba(var(--rgb-primary), .4)); background-repeat: no-repeat; background-size: 100% 100%, 100% 4px; background-position: center, center bottom; backdrop-filter: blur(12px); box-shadow: 0 12px 32px -14px rgba(28,25,23,.14), 0 2px 6px rgba(15,118,110,.06); }

/* 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; }
}