:root {
    --color-primary: #1e293b;
    --color-primary-dark: #0b1220;
    --color-accent: #ff6a3d;
    --color-surface: #fff7e6;
    --color-text: #0b1220;
    --rgb-primary: 30,41,59;
    --rgb-accent: 255,106,61;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-sm: 0 1px 0 rgba(255,106,61,.14), 0 6px 18px rgba(15,23,42,.12);
    --shadow-md: 0 10px 30px rgba(15,23,42,.10), 0 2px 10px rgba(255,106,61,.16), inset 0 1px 0 rgba(255,255,255,.55);
    --shadow-lg: 0 18px 48px rgba(15,23,42,.14), 0 0 26px rgba(255,106,61,.28), 0 2px 12px rgba(255,255,255,.25) inset;
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 240ms cubic-bezier(.2,.9,.2,1);
    --heading-weight: 800;
    --body-line-height: 1.75;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: linear-gradient(180deg, rgba(255,247,230,.75) 0%, rgba(255,255,255,1) 100%); }
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 1px 0 rgba(255,255,255,.45) inset,
        0 10px 30px rgba(11,18,32,.10),
        0 0 0 1px rgba(255,106,61,.12),
        0 6px 18px rgba(255,106,61,.10);
    padding: var(--space-card);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), filter var(--transition), background-color var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), filter var(--transition), background-color var(--transition), border-color var(--transition), color var(--transition);
    outline: 1px solid rgba(255,106,61,.22);
    outline-offset: 2px;
}
a:not([class]) { color: var(--color-primary); transition: color var(--transition), text-shadow var(--transition), filter var(--transition); }
a:not([class]):hover { text-shadow: 0 0 18px rgba(255,106,61,.35); }

.card:hover, [class*="card"]:hover {
    transform: translateY(-4px);
    box-shadow:
        0 1px 0 rgba(255,255,255,.55) inset,
        0 18px 50px rgba(11,18,32,.16),
        0 0 34px rgba(255,106,61,.45),
        0 0 0 1px rgba(255,106,61,.22);
    filter: saturate(1.05);
}
a:not([class]):hover { color: #ff7a55; }

.card { border-left: 3px solid rgba(255,106,61,.92); }

header, .header, .navbar {
    background: transparent;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.card:hover, [class*="card"]:hover {
    animation: glowPulse 2.1s ease-in-out infinite;
}

@keyframes glowPulse {
    0% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.55) inset,
            0 18px 50px rgba(11,18,32,.16),
            0 0 26px rgba(255,106,61,.35),
            0 0 0 1px rgba(255,106,61,.22);
    }
    45% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.55) inset,
            0 18px 50px rgba(11,18,32,.16),
            0 0 42px rgba(255,106,61,.55),
            0 0 0 1px rgba(255,106,61,.28);
    }
    100% {
        box-shadow:
            0 1px 0 rgba(255,255,255,.55) inset,
            0 18px 50px rgba(11,18,32,.16),
            0 0 26px rgba(255,106,61,.35),
            0 0 0 1px rgba(255,106,61,.22);
    }
}

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

/* news: masonry-2 */
/* 两列瀑布流 */
                .news-grid { column-count: 2; column-gap: var(--space-gap); }
                .news-grid .card { break-inside: avoid; margin-bottom: var(--space-gap); }
                .news-grid .card:nth-child(odd) {
                    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
                    box-shadow:
                        0 1px 0 rgba(255,255,255,.52) inset,
                        0 10px 30px rgba(11,18,32,.10),
                        0 0 0 1px rgba(255,106,61,.12),
                        0 6px 18px rgba(255,106,61,.10);
                }
                .news-grid .card:nth-child(even) {
                    background: linear-gradient(180deg, rgba(30,41,59,.92) 0%, rgba(15,23,42,.96) 100%);
                    color: rgba(255,255,255,.92);
                    box-shadow:
                        0 1px 0 rgba(255,255,255,.14) inset,
                        0 14px 40px rgba(0,0,0,.22),
                        0 0 0 1px rgba(255,106,61,.22),
                        0 0 20px rgba(255,106,61,.18);
                }
                .news-grid .card:nth-child(even) a:not([class]) { color: rgba(255,255,255,.92); }
                .news-grid .card:nth-child(even) a:not([class]):hover { color: rgba(255,186,167,.98); text-shadow: 0 0 18px rgba(255,106,61,.45); }

/* features: horizontal */
/* 水平滚动 */
                .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 .card {
                    box-shadow:
                        0 1px 0 rgba(255,255,255,.45) inset,
                        0 10px 30px rgba(11,18,32,.10),
                        0 0 0 1px rgba(255,106,61,.10);
                }
                .feature-list > *:nth-child(odd) .card { background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%); }
                .feature-list > *:nth-child(even) .card { background: linear-gradient(180deg, rgba(255,247,230,.85) 0%, rgba(30,41,59,.95) 140%); color: rgba(255,255,255,.92); }
                .feature-list > *:nth-child(even) .card a:not([class]) { color: rgba(255,255,255,.92); }

/* hero: minimal */
.hero { padding: 2rem 0; }
.hero-content { max-width: 560px; }
.hero { background:
    linear-gradient(90deg, rgba(255,106,61,.12) 0%, rgba(255,106,61,0) 55%),
    linear-gradient(180deg, rgba(255,255,255,.65) 0%, rgba(255,247,230,.55) 100%);
}

/* testimonials: carousel */
/* 单条轮播 */
                .testimonial-list { display: flex; overflow: hidden; } 
                .testimonial-list > * { flex: 0 0 100%; }
                .testimonial-list .card {
                    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
                    box-shadow:
                        0 1px 0 rgba(255,255,255,.55) inset,
                        0 10px 30px rgba(11,18,32,.10),
                        0 0 0 1px rgba(255,106,61,.12),
                        0 0 18px rgba(255,106,61,.12);
                }

/* partners: centered */
.partner-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.partner-grid .card {
    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
    border-radius: var(--radius-md);
    box-shadow:
        0 1px 0 rgba(255,255,255,.55) inset,
        0 10px 30px rgba(11,18,32,.08),
        0 0 0 1px rgba(255,106,61,.10);
}

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card {
    background: linear-gradient(180deg, rgba(30,41,59,.92) 0%, rgba(11,18,32,.97) 100%);
    color: rgba(255,255,255,.92);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 0 rgba(255,255,255,.12) inset,
        0 18px 48px rgba(0,0,0,.20),
        0 0 0 1px rgba(255,106,61,.18),
        0 0 22px rgba(255,106,61,.18);
}
.faq-list .card a:not([class]) { color: rgba(255,255,255,.92); }
.faq-list .card a:not([class]):hover { color: rgba(255,186,167,.98); text-shadow: 0 0 18px rgba(255,106,61,.42); }

/* stats: grid-4 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card {
    background: linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
    border-radius: var(--radius-md);
    box-shadow:
        0 1px 0 rgba(255,255,255,.55) inset,
        0 14px 40px rgba(11,18,32,.10),
        0 0 0 1px rgba(255,106,61,.10),
        0 0 16px rgba(255,106,61,.10);
}
.stats-grid .card:hover {
    box-shadow:
        0 1px 0 rgba(255,255,255,.60) inset,
        0 18px 50px rgba(11,18,32,.14),
        0 0 0 1px rgba(255,106,61,.18),
        0 0 28px rgba(255,106,61,.35);
}

/* cta: centered */
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-inner .card {
    background:
        radial-gradient(900px circle at 50% 0%, rgba(255,106,61,.22) 0%, rgba(255,106,61,0) 55%),
        linear-gradient(180deg, rgba(255,255,255,.92) 0%, rgba(255,247,230,.86) 100%);
    box-shadow:
        0 1px 0 rgba(255,255,255,.55) inset,
        0 18px 48px rgba(11,18,32,.12),
        0 0 0 1px rgba(255,106,61,.14),
        0 0 26px rgba(255,106,61,.20);
    border-radius: var(--radius-xl);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }
.page-main section:nth-child(odd) { background: linear-gradient(90deg, rgba(255,255,255,1) 0%, rgba(255,247,230,.92) 60%, rgba(255,255,255,1) 100%); border-radius: var(--radius-xl); padding-left: 0; padding-right: 0; }
.page-main section:nth-child(even) { background: linear-gradient(90deg, rgba(15,23,42,.98) 0%, rgba(30,41,59,.92) 60%, rgba(15,23,42,.98) 100%); border-radius: var(--radius-xl); padding-left: 0; padding-right: 0; color: rgba(255,255,255,.92); }
.page-main section:nth-child(even) .card { background: linear-gradient(180deg, rgba(255,247,230,.82) 0%, rgba(15,23,42,.98) 145%); color: rgba(255,255,255,.92); }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
a:not([class]):hover { color: var(--color-accent); }
.card { border-left: 3px solid rgba(255,106,61,.92); }

/* 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; }
    .card:hover, [class*="card"]:hover { animation: none; }
}
@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:hover, [class*="card"]:hover { animation: none; }
}