:root {
    --color-primary: #0b3b8c;
    --color-primary-dark: #071c3d;
    --color-accent: #ff7a59;
    --color-surface: #fff9f2;
    --color-text: #121826;
    --rgb-primary: 11,59,140;
    --rgb-accent: 255,122,89;
    --rgb-secondary: 20,184,166;
    --rgb-highlight: 245,158,11;
    --rgb-violet: 99,102,241;
    --radius-sm: 4px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-xl: 38px;
    --shadow-sm: 0 1px 0 rgba(11,59,140,.08), 0 0 0 1px rgba(255,122,89,.08);
    --shadow-md: 0 12px 32px -14px rgba(7,28,61,.42), 0 3px 10px -4px rgba(255,122,89,.22);
    --shadow-lg: 0 28px 64px -24px rgba(7,28,61,.5), 0 12px 28px -12px rgba(20,184,166,.34);
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.55s cubic-bezier(0.22, 1, 0.36, 1);
    --heading-weight: 600;
    --body-line-height: 1.7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(circle at 12% 8%, rgba(245,158,11,.18), transparent 34%), radial-gradient(circle at 88% 12%, rgba(20,184,166,.16), transparent 32%), linear-gradient(160deg, #fffaf2 0%, #f4f7ff 48%, #eef2ff 100%); background-attachment: fixed; }
h1, h2, h3, h4 { font-weight: var(--heading-weight); color: var(--color-primary-dark); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); background: linear-gradient(135deg, rgba(255,255,255,.66) 0%, rgba(255,249,242,.44) 48%, rgba(238,242,255,.58) 100%); border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm); box-shadow: inset 0 1px 0 rgba(255,255,255,.72), inset 0 0 0 1px rgba(11,59,140,.05); }
.card, [class*="card"] { border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm); box-shadow: var(--shadow-md); padding: var(--space-card); transition: var(--transition); background: linear-gradient(135deg, #ffffff 0%, #fff7ed 40%, #eef2ff 72%, #ecfeff 100%) padding-box, linear-gradient(135deg, #ff7a59 0%, #f59e0b 34%, #14b8a6 68%, #6366f1 100%) border-box; }
.btn, button[class*="btn"], a[class*="btn"] { border-radius: var(--radius-md) var(--radius-sm) var(--radius-md) var(--radius-sm); transition: var(--transition); background: linear-gradient(120deg, #071c3d 0%, #0b3b8c 48%, #14b8a6 100%); color: #fffaf2; box-shadow: 0 14px 30px -14px rgba(7,28,61,.72), inset 0 0 0 1px rgba(255,255,255,.22); text-shadow: 0 1px 2px rgba(7,28,61,.35); }
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-decoration-color: rgba(255,122,89,.58); text-shadow: 0 1px 0 rgba(255,255,255,.68); }

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); background: linear-gradient(180deg, rgba(11,59,140,.05) 0%, rgba(255,122,89,.06) 100%); border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(11,59,140,.05); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: linear-gradient(135deg, rgba(11,59,140,.08) 0%, rgba(20,184,166,.10) 55%, rgba(245,158,11,.08) 100%); border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(11,59,140,.06); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; background: linear-gradient(90deg, rgba(255,122,89,.16) 0 5px, transparent 5px 100%); border-radius: var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(11,59,140,.05); }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); background: linear-gradient(135deg, rgba(255,122,89,.10) 0%, rgba(99,102,241,.10) 100%); border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(255,122,89,.10); }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; background: linear-gradient(90deg, rgba(20,184,166,.10) 0%, transparent 25%, transparent 75%, rgba(255,122,89,.10) 100%); 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,.58) 0%, rgba(245,158,11,.06) 100%); border-radius: var(--radius-lg) var(--radius-sm) var(--radius-lg) var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(11,59,140,.05); }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; background: linear-gradient(90deg, rgba(7,28,61,.06) 0%, rgba(20,184,166,.12) 48%, rgba(245,158,11,.10) 100%); border-radius: var(--radius-lg); box-shadow: inset 0 0 0 1px rgba(255,122,89,.12); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; background: linear-gradient(120deg, rgba(7,28,61,.08) 0%, rgba(255,122,89,.12) 50%, rgba(20,184,166,.14) 100%); border-radius: var(--radius-xl) var(--radius-sm) var(--radius-xl) var(--radius-sm); box-shadow: inset 0 0 0 1px rgba(11,59,140,.08); }

/* Page Layout: narrow-centered */
/* 窄版居中 */
            .page-main { max-width: 860px; margin: 0 auto; background: radial-gradient(circle at 100% 0%, rgba(20,184,166,.08), transparent 42%), linear-gradient(180deg, rgba(255,255,255,.28), rgba(238,242,255,.22)); border-radius: var(--radius-xl); }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); background: linear-gradient(135deg, #ffffff 0%, #fff7ed 34%, #ecfeff 68%, #eef2ff 100%) padding-box, linear-gradient(135deg, #14b8a6 0%, #f59e0b 38%, #ff7a59 72%, #6366f1 100%) border-box; border-color: transparent; }
.card { border: 1px solid transparent; }
header, .header, .navbar { background: linear-gradient(95deg, rgba(7,28,61,.98) 0%, rgba(11,59,140,.94) 46%, rgba(20,184,166,.90) 100%); box-shadow: 0 12px 32px -18px rgba(7,28,61,.7), inset 0 -1px 0 rgba(255,255,255,.16); backdrop-filter: blur(10px); }

/* 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; }
}