:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #4c1d95;
    --color-accent: #f59e0b;
    --color-surface: #fbfbff;
    --color-text: #1f2330;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 10px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --shadow-sm: 0 6px 14px rgba(11, 8, 25, .10);
    --shadow-md: 0 18px 44px rgba(8, 6, 20, .20);
    --shadow-lg: 0 32px 80px rgba(8, 6, 20, .28);
    --space-section: 5rem;
    --space-card: 2rem;
    --space-gap: 1.5rem;
    --transition: 0.55s cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 700;
    --body-line-height: 1.7;
    --shadow-inset: inset 0 1px 0 rgba(255,255,255,.7);
    --border-soft: rgba(124, 58, 237, .35);
    --panel-glow: rgba(124, 58, 237, .20);
}

body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 600px at 50% -200px, rgba(124,58,237,.18), transparent 55%), radial-gradient(900px 420px at 15% 0%, rgba(245,158,11,.12), transparent 55%), var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); letter-spacing: -0.01em; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    padding: var(--space-card);
    transition: var(--transition);
    background:
        radial-gradient(900px 340px at 15% 0%, rgba(245,158,11,.10), transparent 55%),
        radial-gradient(700px 320px at 85% 10%, rgba(124,58,237,.12), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60));
    box-shadow:
        0 30px 70px rgba(8, 6, 20, .22),
        0 12px 26px rgba(8, 6, 20, .16),
        0 1px 0 rgba(255,255,255,.65),
        var(--shadow-inset);
    border: 1px solid rgba(124,58,237,.14);
    backdrop-filter: blur(10px) saturate(120%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, rgba(124,58,237,.12), rgba(245,158,11,.10));
    border: 1px solid rgba(124,58,237,.22);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 0 rgba(0,0,0,0); }
a:not([class]):hover { text-shadow: 0 8px 22px rgba(124,58,237,.28); }

:focus-visible {
    outline: 2px solid rgba(245,158,11,.70);
    outline-offset: 3px;
}

::selection { background: rgba(124,58,237,.28); color: #1b122d; }

@supports (caret-color: auto) {
    input, textarea, select { caret-color: var(--color-accent); }
}
@supports (accent-color: auto) {
    input[type="checkbox"], input[type="radio"] { accent-color: var(--color-primary); }
}

.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: flex; gap: var(--space-gap); overflow-x: auto; scroll-snap-type: x mandatory; }
.feature-list > * { flex: 0 0 300px; scroll-snap-align: start; }
.feature-list { scrollbar-color: rgba(124,58,237,.55) rgba(255,255,255,.0); }
.feature-list::-webkit-scrollbar { height: 10px; }
.feature-list::-webkit-scrollbar-track { background: transparent; }
.feature-list::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, rgba(124,58,237,.55), rgba(245,158,11,.40));
    border-radius: 999px;
    border: 2px solid rgba(255,255,255,.55);
}

.hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
.hero-content { position: relative; z-index: 1; }

.testimonial-list { column-count: 2; column-gap: var(--space-gap); }
.testimonial-list > * { break-inside: avoid; margin-bottom: var(--space-gap); }

.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 { text-align: center; max-width: 700px; margin: 0 auto; }

.page-main { max-width: 1200px; margin: 0 auto; }

/* 条件性装饰 */
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(1100px 520px at 50% -140px, rgba(124,58,237,.50), transparent 58%),
        radial-gradient(900px 420px at 10% 10%, rgba(245,158,11,.22), transparent 55%),
        linear-gradient(135deg, rgba(15,15,26,1) 0%, rgba(24, 17, 48, 1) 45%, rgba(15,15,26,1) 100%);
}
.hero::before, [class*="hero"]::before, section:first-of-type::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background:
        linear-gradient(115deg, rgba(245,158,11,.18), transparent 35%),
        linear-gradient(245deg, rgba(124,58,237,.22), transparent 40%);
    opacity: .85;
}
.card { border-left: 3px solid rgba(245,158,11,.9); }
header, .header, .navbar { background: transparent; }

.card:hover, [class*="card"]:hover {
    box-shadow:
        0 38px 92px rgba(8, 6, 20, .28),
        0 16px 34px rgba(8, 6, 20, .20),
        0 1px 0 rgba(255,255,255,.70),
        inset 0 1px 0 rgba(255,255,255,.72);
    transform: translateY(-1px);
}

@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; --radius-md: 16px; --radius-lg: 22px; --transition: 0.50s cubic-bezier(0.2, 0.85, 0.2, 1); }
    .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; }
}