:/* Palette: violet-amber | Radius: rounded | Shadow: layered */
/* Spacing: spacious | Transition: smooth */

:root {
    --color-primary: #7c3aed;
    --color-primary-dark: #3b0764;
    --color-accent: #f59e0b;
    --color-surface: #faf3e9;
    --color-text: #241b3a;
    --rgb-primary: 124,58,237;
    --rgb-accent: 245,158,11;
    --radius-sm: 6px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 10px rgba(59,7,100,.08), 0 1px 2px rgba(36,27,58,.06);
    --shadow-md: 0 12px 32px rgba(124,58,237,.14), 0 4px 10px rgba(36,27,58,.08), inset 0 1px 0 rgba(255,255,255,.7);
    --shadow-lg: 0 24px 60px rgba(124,58,237,.22), 0 10px 24px rgba(36,27,58,.12), inset 0 1px 0 rgba(255,255,255,.6);
    --space-section: 6rem;
    --space-card: 2.25rem;
    --space-gap: 1.75rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.75;
}

body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background: linear-gradient(180deg, #fdf7ef 0%, #ffffff 25%, #f6ead9 55%, #171028 100%);
}

h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: var(--color-primary-dark);
    text-shadow: 0 2px 8px rgba(124,58,237,.08);
}

section, .section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
    background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(250,243,233,.82));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.9), inset 0 -1px 0 rgba(59,7,100,.04);
}

.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md), inset 0 0 0 1px rgba(255,255,255,.8);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(145deg, #ffffff 0%, #fff8f0 45%, #f3e6d2 100%);
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: linear-gradient(135deg, var(--color-primary) 0%, #9a5bff 45%, var(--color-accent) 130%);
    box-shadow: 0 10px 22px rgba(124,58,237,.22), inset 0 1px 0 rgba(255,255,255,.35);
    color: #ffffff;
}

a:not([class]) {
    color: var(--color-primary);
    transition: var(--transition);
    text-decoration-color: rgba(124,58,237,.3);
    text-underline-offset: 2px;
}

/* ========== Section Layout Variants ========== */

/* news: grid-3 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
    background: radial-gradient(circle at 15% 15%, rgba(245,158,11,.1), transparent 45%);
    border-radius: var(--radius-xl);
}

/* features: grid-3 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-gap);
    background: radial-gradient(circle at 85% 10%, rgba(124,58,237,.08), transparent 45%);
    border-radius: var(--radius-xl);
}

/* hero: left-aligned */
.hero-content {
    text-align: left;
    max-width: 600px;
}

/* testimonials: stacked */
.testimonial-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-gap);
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(255,255,255,.85), rgba(250,243,233,.65));
    border-radius: var(--radius-xl);
}

/* partners: scroll */
.partner-grid {
    display: flex;
    gap: 2rem;
    overflow: hidden;
    animation: partnerScroll 28s linear infinite;
    background: linear-gradient(90deg, rgba(255,255,255,.4), rgba(250,243,233,.6));
    border-radius: var(--radius-lg);
}

@keyframes partnerScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* faq: single-column */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(180deg, rgba(255,255,255,.7), rgba(250,243,233,.5));
    border-radius: var(--radius-xl);
}

/* stats: big-number */
.stats-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    background: radial-gradient(circle at center, rgba(124,58,237,.08), transparent 60%);
    border-radius: var(--radius-xl);
}

.stats-grid .stat-value {
    font-size: 3rem;
}

/* cta: split */
.cta-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 2rem;
    background: linear-gradient(135deg, #7c3aed, #3b0764 60%, #f59e0b 130%);
    color: #ffffff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Page Layout: wide */
.page-main {
    max-width: 1400px;
    margin: 0 auto;
}

/* 条件性装饰 */
a:not([class]):hover {
    color: var(--color-accent);
    text-shadow: 0 0 12px rgba(245,158,11,.35);
}

.card {
    border-left: 3px solid var(--color-accent);
}

header, .header, .navbar {
    background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.55));
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
}

/* 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; }
}