:root {
    --color-primary: #0ea5e9;
    --color-primary-dark: #0369a1;
    --color-accent: #22c55e;
    --color-surface: #f6fbf8;
    --color-text: #0b1220;
    --rgb-primary: 14,165,233;
    --rgb-accent: 34,197,94;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --shadow-sm: 0 1px 0 rgba(2,6,23,.06);
    --shadow-md: 0 10px 26px rgba(2,6,23,.10), 0 2px 6px rgba(2,6,23,.06);
    --shadow-lg: 0 18px 48px rgba(2,6,23,.18), 0 6px 18px rgba(2,6,23,.10), 0 0 0 1px rgba(var(--rgb-accent), .12);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 420ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
    --strip-a: #ffffff;
    --strip-b: #fff7e6;
    --strip-c: #071a2b;
    --strip-d: #f7fbff;
    --glow-accent: rgba(var(--rgb-accent), .45);
    --glow-accent-strong: rgba(var(--rgb-accent), .65);
}

body { color: var(--color-text); line-height: var(--body-line-height); background: #ffffff; }
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: 0 14px 34px rgba(2,6,23,.14), 0 6px 14px rgba(2,6,23,.08), inset 0 1px 0 rgba(255,255,255,.45); padding: var(--space-card); transition: filter var(--transition), transform var(--transition), box-shadow var(--transition), background-color var(--transition); }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md); transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition); }
a:not([class]) { color: var(--color-primary); transition: color var(--transition), text-shadow var(--transition), filter var(--transition); text-shadow: 0 0 0 rgba(0,0,0,0); }

section, .section { background: transparent; }
.card { border: 1px solid rgba(2,6,23,.10); background: rgba(255,255,255,.78); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.news-grid > *:first-child { grid-column: span 3; }

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

.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

.testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }

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

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

.stats-grid { display: flex; justify-content: center; gap: 3rem; }

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

/* Page Layout: full-width */
.page-main { max-width: 1200px; margin: 0 auto; }

/* Horizontal-strips look (full-width zones) */
section, .section, .hero, [class*="hero"] {
    width: 100%;
    position: relative;
}
section:nth-of-type(odd), .section:nth-of-type(odd) { background: linear-gradient(180deg, var(--strip-a) 0%, #ffffff 40%, var(--strip-d) 100%); }
section:nth-of-type(even), .section:nth-of-type(even) { background: linear-gradient(180deg, var(--strip-b) 0%, #fff2cc 50%, #ffffff 100%); }
section:nth-of-type(3n), .section:nth-of-type(3n) { background: radial-gradient(1200px 240px at 20% 0%, rgba(14,165,233,.10) 0%, rgba(14,165,233,0) 55%), linear-gradient(180deg, var(--strip-c) 0%, #0b243a 60%, #061724 100%); color: #eaf3ff; }
section:nth-of-type(4n), .section:nth-of-type(4n) { background: linear-gradient(180deg, #ffffff 0%, #f7fbff 55%, #ffffff 100%); }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow: 0 26px 64px rgba(2,6,23,.22),
                0 10px 26px rgba(2,6,23,.12),
                0 0 0 1px rgba(var(--rgb-accent), .22),
                0 0 24px rgba(var(--rgb-accent), .36);
    filter: saturate(1.08);
}
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 18px rgba(var(--rgb-accent), .55);
    filter: drop-shadow(0 6px 14px rgba(var(--rgb-accent), .18));
}

.hero, [class*="hero"], section:first-of-type {
    background:
      radial-gradient(900px 260px at 10% 0%, rgba(var(--rgb-accent), .35) 0%, rgba(var(--rgb-accent), 0) 55%),
      radial-gradient(900px 300px at 90% 20%, rgba(var(--rgb-primary), .28) 0%, rgba(var(--rgb-primary), 0) 52%),
      linear-gradient(135deg, #0b1220 0%, #071a2b 35%, #053a5d 70%, #0ea5e9 100%);
    color: #eaf6ff;
    border-top: 1px solid rgba(255,255,255,.10);
    border-bottom: 1px solid rgba(255,255,255,.08);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
}

.card:hover { animation: glowPulse 1.3s ease-in-out infinite; }

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 26px 64px rgba(2,6,23,.22), 0 10px 26px rgba(2,6,23,.12), 0 0 0 1px rgba(var(--rgb-accent), .22), 0 0 24px rgba(var(--rgb-accent), .36); }
    50% { box-shadow: 0 26px 64px rgba(2,6,23,.22), 0 10px 26px rgba(2,6,23,.12), 0 0 0 1px rgba(var(--rgb-accent), .28), 0 0 32px rgba(var(--rgb-accent), .56); }
}

/* 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 { box-shadow: 0 12px 28px rgba(2,6,23,.12), 0 4px 10px rgba(2,6,23,.06), inset 0 1px 0 rgba(255,255,255,.45); }
}