:root {
    --color-primary: #8a1538;
    --color-primary-dark: #3e0716;
    --color-accent: #ff3d6e;
    --color-surface: #ffffff;
    --color-text: #1a0b12;
    --rgb-primary: 138,21,56;
    --rgb-accent: 255,61,110;
    --radius-sm: 2px;
    --radius-md: 3px;
    --radius-lg: 0px;
    --radius-xl: 2px;
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --space-section: 2rem;
    --space-card: 1rem;
    --space-gap: 0.75rem;
    --transition: 0.15s cubic-bezier(0.2, 0.9, 0.2, 1);
    --heading-weight: 650;
    --body-line-height: 1.65;
    --bg-page: #f3f4f6;
    --stroke-strong: rgba(30, 12, 18, 0.18);
    --shadow-hard-1: rgba(0, 0, 0, 0.08);
    --shadow-hard-2: rgba(0, 0, 0, 0.16);
    --shadow-hard-3: rgba(255, 61, 110, 0.18);
}

body { 
    color: var(--color-text); 
    line-height: var(--body-line-height);
    background: var(--bg-page);
    caret-color: var(--color-accent);
    accent-color: var(--color-accent);
}

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: 2px;
    box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        6px 7px 18px rgba(0,0,0,0.08),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
    background: #ffffff;
    padding: var(--space-card);
    transition: var(--transition);
    border-style: solid;
    border-color: rgba(30, 12, 18, 0.18);
    border-width: 0;
}

.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.16),
        0 10px 22px rgba(0,0,0,0.06);
    border-style: solid;
    border-color: rgba(30, 12, 18, 0.20);
    border-width: 2px;
}

a:not([class]) { 
    color: var(--color-primary); 
    transition: var(--transition);
    text-shadow: 0 1px 0 rgba(255,255,255,0.55);
}

:focus-visible { outline: 2px solid rgba(255, 61, 110, 0.55); outline-offset: 3px; }

/* ========== 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); box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        7px 10px 22px rgba(0,0,0,0.07),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
}

/* features: centered */
/* 居中大卡片 */
                .feature-list { display: flex; flex-direction: column; align-items: center; gap: calc(var(--space-gap) * 2); max-width: 720px; margin: 0 auto; }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .hero-content { position: relative; z-index: 1; }

/* testimonials: grid-3 */
.testimonial-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: start; }
.testimonial-list .card { box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        7px 10px 22px rgba(0,0,0,0.07),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
}

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }
.partner-grid .card { box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        6px 9px 18px rgba(0,0,0,0.06),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
}

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
                .faq-wrapper .card { border-radius: 2px; box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        7px 10px 22px rgba(0,0,0,0.07),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
}

/* stats: grid-3 */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); text-align: center; }
.stats-grid .card { box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        7px 10px 22px rgba(0,0,0,0.07),
        inset 0 0 0 2px rgba(30, 12, 18, 0.10);
}

/* cta: card-style */
.cta-inner { 
    background: linear-gradient(135deg, #ffffff 0%, #fff5f7 42%, #ffffff 100%);
    border-radius: var(--radius-xl);
    padding: 3rem; 
    text-align: center; 
    border-style: solid;
    border-color: rgba(30, 12, 18, 0.18);
    border-width: 2px;
    box-shadow:
        4px 4px 0px rgba(23, 8, 14, 0.18),
        10px 14px 28px rgba(0,0,0,0.08),
        inset 0 0 0 2px rgba(255, 61, 110, 0.14);
    transition: var(--transition);
}

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

/* 条件性装饰 */
.card:hover, [class*="card"]:hover { transform: translateY(-2px); box-shadow:
        4px 6px 0px rgba(23, 8, 14, 0.20),
        10px 18px 34px rgba(0,0,0,0.10),
        inset 0 0 0 2px rgba(255, 61, 110, 0.22);
}
a:not([class]):hover { color: #ff2f5f; text-shadow: 0 2px 0 rgba(255, 61, 110, 0.20); }

header, .header, .navbar { 
    box-shadow: 4px 4px 0px rgba(0,0,0,0.10), 0 10px 24px rgba(0,0,0,.06);
    border-style: solid;
    border-color: rgba(30, 12, 18, 0.14);
    border-width: 2px;
}

/* 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; --transition: 0.12s cubic-bezier(0.2, 0.9, 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; }
}