:root {
    --color-primary: #d4af37;
    --color-primary-dark: #8c6a12;
    --color-accent: #a78bfa;
    --color-surface: #161328;
    --color-text: #ece9f5;
    --rgb-primary: 212,175,55;
    --rgb-accent: 167,139,250;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 0 rgba(255,255,255,.05) inset, 0 4px 14px -6px rgba(4,4,12,.8), 0 2px 10px -4px rgba(var(--rgb-accent),.35);
    --shadow-md: 0 2px 0 rgba(255,255,255,.04) inset, 0 18px 42px -20px rgba(4,4,12,.9), 0 8px 26px -12px rgba(var(--rgb-accent),.45), 0 0 0 1px rgba(var(--rgb-primary),.14);
    --shadow-lg: 0 1px 0 rgba(255,255,255,.06) inset, 0 34px 70px -28px rgba(4,4,12,.94), 0 16px 44px -18px rgba(var(--rgb-accent),.5), 0 0 0 1px rgba(var(--rgb-primary),.2);
    --space-section: 3.5rem;
    --space-card: 1.4rem;
    --space-gap: 1.1rem;
    --transition: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 800;
    --body-line-height: 1.6;
}

/* 基础覆盖 */
body {
    color: var(--color-text);
    line-height: var(--body-line-height);
    background-color: #0f0f1a;
    background-image:
        radial-gradient(ellipse 900px 520px at 50% -8%, rgba(var(--rgb-accent),.30) 0%, rgba(15,15,26,0) 62%),
        radial-gradient(circle at 12% 88%, rgba(var(--rgb-primary),.14) 0%, rgba(15,15,26,0) 58%),
        linear-gradient(180deg, #0f0f1a 0%, #15122c 46%, #0f0f1a 100%);
}
h1, h2, h3, h4 {
    font-weight: var(--heading-weight);
    color: #fdfbff;
    text-shadow: 0 2px 22px rgba(var(--rgb-accent),.38), 0 1px 2px rgba(0,0,0,.6);
}
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);
    padding: var(--space-card);
    transition: var(--transition);
    background-color: rgba(22,19,40,.72);
    background-image:
        linear-gradient(152deg, rgba(var(--rgb-accent),.20) 0%, rgba(22,19,40,.92) 42%, rgba(15,15,26,.96) 68%, rgba(var(--rgb-primary),.16) 100%);
    backdrop-filter: blur(10px) saturate(140%);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    color: #1a1226;
    background-color: #d4af37;
    background-image: linear-gradient(135deg, #f6e08a 0%, var(--color-primary) 45%, #b8860b 100%);
    box-shadow: 0 2px 0 rgba(255,255,255,.35) inset, 0 10px 26px -12px rgba(var(--rgb-primary),.85);
}
a:not([class]) {
    color: var(--color-accent);
    transition: var(--transition);
    text-shadow: 0 1px 10px rgba(var(--rgb-accent),.45);
}

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

/* news: featured-left */
/* 左大右小 (1大+2小) */
                .news-grid { display: grid; grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; gap: var(--space-gap); }
                .news-grid > *:first-child { grid-row: span 2; }

/* features: grid-4 */
.feature-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); }

/* hero: split */
/* 左文右图 */
                .hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }

/* 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: 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: centered */
.cta-inner {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    background-image: radial-gradient(ellipse 520px 260px at 50% 0%, rgba(var(--rgb-primary),.18) 0%, rgba(var(--rgb-accent),.10) 45%, rgba(15,15,26,0) 78%);
}

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; }

/* 条件性装饰 */
.card { border-left: 3px solid var(--color-primary); }
header, .header, .navbar {
    box-shadow: 0 1px 0 rgba(255,255,255,.06) inset, 0 14px 38px -22px rgba(4,4,12,.95), 0 4px 20px -10px rgba(var(--rgb-accent),.42);
    background-image: linear-gradient(180deg, rgba(21,18,44,.92) 0%, rgba(15,15,26,.78) 100%);
}

/* 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: 2.2rem; --space-card: 1.1rem; --space-gap: 0.8rem; }
    .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; }
}