:root {
    --color-primary: #0b3a2e;
    --color-primary-dark: #072a21;
    --color-accent: #22c55e;
    --color-surface: #f7faf8;
    --color-text: #0f3b31;
    --rgb-primary: 11,58,46;
    --rgb-accent: 34,197,94;
    --radius-sm: 7px;
    --radius-md: 14px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --shadow-sm: 0 1px 0 rgba(0, 0, 0, .06);
    --shadow-md: 0 10px 22px rgba(11, 58, 46, .10), 0 2px 6px rgba(11, 58, 46, .08);
    --shadow-lg: 0 16px 40px rgba(11, 58, 46, .14), 0 6px 14px rgba(11, 58, 46, .10), 0 0 0 1px rgba(34, 197, 94, .08);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 340ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 600;
    --body-line-height: 1.6;
    --shadow-glow: 0 0 24px rgba(var(--rgb-accent), .40);
    --shadow-glow-hover: 0 0 32px rgba(var(--rgb-accent), .60);
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 700px at 20% 0%, rgba(var(--rgb-accent), .08), transparent 55%), radial-gradient(900px 600px at 90% 10%, rgba(var(--rgb-accent), .06), transparent 50%), linear-gradient(180deg, #f8fbf9, var(--color-surface)); }
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), 0 0 0 1px rgba(var(--rgb-primary), .08);
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow 520ms cubic-bezier(0.16, 1, 0.3, 1), border-color var(--transition), background-color var(--transition), filter 520ms cubic-bezier(0.16, 1, 0.3, 1);
    background: linear-gradient(180deg, #ffffff, rgba(255,255,255,.92));
    position: relative;
    overflow: hidden;
}
.card::before, [class*="card"]::before { content: ""; position: absolute; inset: -40px -40px auto auto; width: 140px; height: 140px; background: radial-gradient(circle at 30% 30%, rgba(var(--rgb-accent), .22), transparent 60%); transform: rotate(20deg); opacity: .9; pointer-events: none; }
.card::after, [class*="card"]::after { content: ""; position: absolute; left: -30px; bottom: -60px; width: 180px; height: 180px; background: radial-gradient(circle at 50% 50%, rgba(var(--rgb-accent), .14), transparent 62%); pointer-events: none; opacity: .9; }

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), color var(--transition), background-color var(--transition), filter var(--transition);
    box-shadow: 0 10px 22px rgba(11, 58, 46, .12), 0 0 0 1px rgba(34, 197, 94, .16);
}

a:not([class]) { color: #0f4a39; transition: var(--transition); }
a:not([class]):hover { color: #16a34a; }

@keyframes cardGlowPulse {
    0%, 100% { filter: saturate(1) brightness(1); }
    50% { filter: saturate(1.05) brightness(1.02); }
}

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

/* hero: minimal */
.hero { padding: 2rem 0; } .hero-content { max-width: 560px; }

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

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

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

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }

/* 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(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-hover);
    border-color: rgba(var(--rgb-accent), .40);
    animation: cardGlowPulse 900ms ease-in-out both;
}
a:not([class]):hover { color: rgba(var(--rgb-accent), 1); }
.hero, [class*="hero"], section:first-of-type {
    background: radial-gradient(900px 520px at 15% 20%, rgba(var(--rgb-accent), .22), transparent 60%),
                radial-gradient(800px 520px at 90% 20%, rgba(255,255,255,.22), transparent 58%),
                linear-gradient(135deg, #0f5a3f, #063229);
    color: #eafff3;
}
.card { border: 1px solid rgba(var(--rgb-primary), .10); }
header, .header, .navbar {
    box-shadow:
        0 14px 30px rgba(7, 42, 33, .10),
        0 3px 10px rgba(7, 42, 33, .08),
        0 0 0 1px rgba(var(--rgb-accent), .10);
    background: rgba(255,255,255,.78);
    backdrop-filter: blur(10px);
}

/* 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; }
}