:root {
    --color-primary: #ff3d7f;
    --color-primary-dark: #b10f3f;
    --color-accent: #5eead4;
    --color-surface: #07121f;
    --color-text: #eaf3ff;

    --rgb-primary: 255,61,127;
    --rgb-accent: 94,234,212;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 18px;

    --shadow-sm: 0 0 0 rgba(0,0,0,0);
    --shadow-md: 0 10px 28px rgba(0,0,0,0.28), 0 1px 0 rgba(255,255,255,0.06) inset;
    --shadow-lg: 0 18px 50px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.05) inset;

    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;

    --transition: 420ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 650;
    --body-line-height: 1.6;
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: radial-gradient(1200px 600px at 20% 0%, rgba(255,61,127,0.12), rgba(0,0,0,0) 55%),
                radial-gradient(900px 500px at 90% 20%, rgba(94,234,212,0.10), rgba(0,0,0,0) 52%),
                linear-gradient(180deg, #060c14 0%, #07121f 45%, #050a12 100%);
}

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: 14px;
    background: linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.03) 100%);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow:
        0 14px 40px rgba(0,0,0,0.42),
        0 1px 0 rgba(255,255,255,0.08) inset,
        0 0 0 0 rgba(94,234,212,0.0);
    padding: var(--space-card);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition), background var(--transition);
}

.card:hover, [class*="card"]:hover {
    border-color: rgba(94,234,212,0.35);
    box-shadow:
        0 18px 55px rgba(0,0,0,0.50),
        0 0 0 1px rgba(94,234,212,0.20) inset,
        0 0 24px rgba(94,234,212,0.26),
        0 0 44px rgba(255,61,127,0.12);
    transform: translateY(-2px);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: 12px;
    transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition), color var(--transition);
}

a:not([class]) {
    color: #ff4d86;
    transition: color var(--transition), text-shadow var(--transition), opacity var(--transition);
    text-shadow: 0 0 0 rgba(0,0,0,0);
}
a:not([class]):hover {
    color: #5eead4;
    text-shadow: 0 0 18px rgba(94,234,212,0.45);
}

@keyframes glowPulse {
    0% { box-shadow: 0 14px 40px rgba(0,0,0,0.42), 0 0 0 1px rgba(94,234,212,0.0) inset, 0 0 18px rgba(94,234,212,0.00); }
    50% { box-shadow: 0 18px 55px rgba(0,0,0,0.50), 0 0 0 1px rgba(94,234,212,0.18) inset, 0 0 28px rgba(94,234,212,0.22); }
    100% { box-shadow: 0 14px 40px rgba(0,0,0,0.42), 0 0 0 1px rgba(94,234,212,0.0) inset, 0 0 18px rgba(94,234,212,0.00); }
}

.card:focus-visible, button:focus-visible, a:focus-visible, [tabindex]:focus-visible {
    outline: 2px solid rgba(94,234,212,0.55);
    outline-offset: 3px;
    border-radius: 12px;
}

.card {
    animation: glowPulse 6.5s ease-in-out infinite;
    animation-play-state: paused;
}
.card:hover {
    animation-play-state: running;
}

/* ========== 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: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }

/* 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: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }

/* cta: card-style */
.cta-inner {
    background:
        radial-gradient(900px 240px at 10% 0%, rgba(255,61,127,0.26) 0%, rgba(255,61,127,0.0) 55%),
        radial-gradient(720px 240px at 90% 10%, rgba(94,234,212,0.18) 0%, rgba(94,234,212,0.0) 58%),
        linear-gradient(180deg, rgba(13,25,44,0.92) 0%, rgba(7,18,31,0.98) 100%);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.10);
    box-shadow:
        0 22px 70px rgba(0,0,0,0.48),
        0 0 0 1px rgba(94,234,212,0.14) inset,
        0 0 30px rgba(94,234,212,0.14);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.cta-inner:hover {
    border-color: rgba(94,234,212,0.28);
    box-shadow:
        0 26px 90px rgba(0,0,0,0.56),
        0 0 0 1px rgba(94,234,212,0.22) inset,
        0 0 40px rgba(94,234,212,0.22),
        0 0 26px rgba(255,61,127,0.12);
    transform: translateY(-2px);
}

/* 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); }

.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 360px at 20% 20%, rgba(94,234,212,0.25) 0%, rgba(94,234,212,0.0) 55%),
        radial-gradient(720px 320px at 85% 20%, rgba(255,61,127,0.28) 0%, rgba(255,61,127,0.0) 55%),
        linear-gradient(135deg, #0b1530 0%, #081221 30%, #0d1a33 60%, #060c14 100%);
    box-shadow: inset 0 -1px 0 rgba(255,255,255,0.06);
}

.card { border-left: 3px solid #5eead4; }

/* 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; }

    .card, [class*="card"] { border-radius: 12px; }
    .btn, button[class*="btn"], a[class*="btn"] { border-radius: 10px; }
}