/**
 * 龙瑆中文站品牌红 (#E60012) — 主按钮、链接、Hero 横幅、强调色。
 * 在 Tailwind (app.css) 之后加载，将前台 UI 主色从蓝色统一映射为品牌红。
 */
:root {
    --brand-primary: #e60012;
    --brand-primary-hover: #c40010;
    --brand-primary-dark: #a0000e;
    --brand-primary-light: #fef2f2;
    --brand-primary-ring: rgba(230, 0, 18, 0.45);
}

.btn-brand-primary {
    background-color: var(--brand-primary);
    color: #ffffff;
}
.btn-brand-primary:hover:not(:disabled) {
    background-color: var(--brand-primary-hover);
}
.btn-brand-primary:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}
.btn-brand-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
#service-button.btn-brand-primary {
    box-shadow: 0 4px 14px rgba(230, 0, 18, 0.35);
}

.bg-brand-hero {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 55%, var(--brand-primary-dark) 100%);
}

.hero-gradient-brand {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 55%, var(--brand-primary-dark) 100%);
}

.text-brand-link {
    color: var(--brand-primary);
}
a.text-brand-link:hover,
.hover\:text-brand-link:hover {
    color: var(--brand-primary-hover);
}

.bg-brand-accent {
    background-color: var(--brand-primary);
}

.hover\:border-brand:hover {
    border-color: var(--brand-primary) !important;
}

.focus-ring-brand:focus {
    outline: 2px solid transparent;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px var(--brand-primary-ring);
}

.prose.prose-brand a {
    color: var(--brand-primary);
    text-decoration: none;
}
.prose.prose-brand a:hover {
    color: var(--brand-primary-hover);
    text-decoration: underline;
}

/* Tailwind blue/purple/indigo → 品牌红（按钮、徽章、Hero、强调色） */
.bg-blue-600,
.bg-blue-500,
.bg-purple-600,
.bg-indigo-600 {
    background-color: var(--brand-primary) !important;
}
.bg-blue-700 {
    background-color: var(--brand-primary-hover) !important;
}
.hover\:bg-blue-700:hover,
.hover\:bg-blue-600:hover,
.hover\:bg-purple-700:hover,
.hover\:bg-indigo-700:hover {
    background-color: var(--brand-primary-hover) !important;
}
.bg-blue-50,
.bg-purple-50,
.bg-indigo-50 {
    background-color: var(--brand-primary-light) !important;
}
.bg-blue-100 {
    background-color: #fee2e2 !important;
}
.hover\:bg-blue-50:hover {
    background-color: var(--brand-primary-light) !important;
}
.text-blue-600,
.text-purple-600,
.text-indigo-600 {
    color: var(--brand-primary) !important;
}
.hover\:text-blue-600:hover,
.hover\:text-blue-800:hover,
.hover\:text-blue-700:hover {
    color: var(--brand-primary-hover) !important;
}
.text-blue-800 {
    color: var(--brand-primary-dark) !important;
}
.border-blue-400,
.border-blue-500,
.border-blue-600 {
    border-color: var(--brand-primary) !important;
}
.focus\:ring-blue-500:focus {
    --tw-ring-color: var(--brand-primary) !important;
}
.ring-blue-500 {
    --tw-ring-color: var(--brand-primary) !important;
}

/* 首页「为什么选择」图标圆底 */
.advantage-icon {
    background: linear-gradient(145deg, #ff3344 0%, var(--brand-primary) 45%, var(--brand-primary-hover) 100%) !important;
    box-shadow: 0 6px 16px rgba(230, 0, 18, 0.28);
}
.advantage-card:hover {
    border-color: var(--brand-primary) !important;
}

/* 技术支持 CTA 横幅 */
.support-cta-section {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 52%, var(--brand-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}
.support-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 90% 70% at 50% -10%, rgba(255, 255, 255, 0.14), transparent 55%),
        radial-gradient(ellipse 50% 40% at 100% 100%, rgba(0, 0, 0, 0.08), transparent 50%);
    pointer-events: none;
}
.support-cta-band .container {
    position: relative;
    z-index: 1;
}
.support-cta-btn {
    background-color: #ffffff !important;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}
.support-cta-btn:hover {
    background-color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}
.support-cta-btn-text {
    color: var(--brand-primary) !important;
}
.support-cta-btn-text i {
    color: var(--brand-primary);
}

/* Tailwind 蓝紫渐变条 → 品牌红 */
.bg-gradient-to-r.from-blue-600.to-blue-800,
.bg-gradient-to-br.from-blue-500.to-purple-600,
.from-blue-600.to-blue-800 {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 55%, var(--brand-primary-dark) 100%) !important;
}

/* Hero 白底按钮文字色 */
.hero-btn {
    color: var(--brand-primary) !important;
}

/* Footer 链接 hover 下划线 */
footer .group:hover span.bg-blue-400 {
    background-color: var(--brand-primary) !important;
}

/* 面包屑导航 */
.site-breadcrumb {
    background-color: #f9fafb;
    border-bottom: 1px solid #e5e7eb;
}

.site-breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0;
    min-height: 2.75rem;
    padding: 0.5rem 0;
    margin: 0;
    list-style: none;
    font-size: 0.875rem;
    line-height: 1.25rem;
}

.site-breadcrumb__item {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    color: #6b7280;
}

.site-breadcrumb__item:not(:last-child)::after {
    content: '';
    display: inline-block;
    width: 0.375rem;
    height: 0.375rem;
    margin: 0 0.625rem;
    border-top: 1.5px solid #d1d5db;
    border-right: 1.5px solid #d1d5db;
    transform: rotate(45deg);
    flex-shrink: 0;
}

.site-breadcrumb__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s ease;
}

.site-breadcrumb__link:hover {
    color: var(--brand-primary);
}

.site-breadcrumb__home-icon {
    font-size: 0.8125rem;
    opacity: 0.85;
}

.site-breadcrumb__current {
    color: #111827;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: min(100%, 28rem);
}

@media (max-width: 640px) {
    .site-breadcrumb__current {
        max-width: min(100%, 12rem);
    }
}