/* 8. style.css */

/* ==================== 基础变量与重置 ==================== */
:root {
    --qy-primary: #2B5797;
    --qy-primary-dark: #1e3d6f;
    --qy-primary-light: #e8f0f8;
    --qy-secondary: #6c757d;
    --qy-success: #198754;
    --qy-info: #0dcaf0;
    --qy-warning: #ffc107;
    --qy-danger: #dc3545;
    --qy-light: #FAF9F6;
    --qy-dark: #212529;
    --qy-beige: #F5F5DC;
    --qy-cream: #FFFDD0;
    --qy-border-radius: 12px;
    --qy-box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    --qy-transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--qy-light);
    color: var(--qy-dark);
    line-height: 1.6;
}

/* ==================== 通用组件样式 ==================== */
.qy-top-bar {
    font-size: 0.875rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.qy-main-nav {
    padding: 1rem 0;
    transition: var(--qy-transition);
}

.qy-main-nav .navbar-brand {
    transition: var(--qy-transition);
}

.qy-main-nav .nav-link {
    color: var(--qy-dark);
    font-weight: 500;
    transition: var(--qy-transition);
}

.qy-main-nav .nav-link:hover,
.qy-main-nav .nav-link.active {
    background-color: var(--qy-primary);
    color: white !important;
}

.qy-btn-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(43, 87, 151, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(43, 87, 151, 0); }
    100% { box-shadow: 0 0 0 0 rgba(43, 87, 151, 0); }
}

.divider {
    width: 60px;
    height: 4px;
    border-radius: 2px;
}

.hover-lift {
    transition: var(--qy-transition);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.hover-primary:hover {
    color: var(--qy-primary) !important;
}

.transition-zoom {
    transition: transform 0.5s ease;
}

.transition-zoom:hover {
    transform: scale(1.05);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.object-fit-cover {
    object-fit: cover;
}

.ls-2 {
    letter-spacing: 2px;
}

/* ==================== 首页特定样式 ==================== */
.qy-hero-section {
    margin-top: -1px;
}

.hero-title {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.animate-fade-in-up {
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.qy-feature-card {
    border-radius: var(--qy-border-radius);
    background: white;
    position: relative;
    overflow: hidden;
}

.qy-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--qy-primary), var(--qy-primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.qy-feature-card:hover::before {
    transform: scaleX(1);
}

.qy-service-card {
    border-radius: var(--qy-border-radius);
    transition: var(--qy-transition);
}

.qy-service-card:hover {
    transform: translateY(-8px);
}

.qy-service-card .service-img-wrapper {
    overflow: hidden;
}

.qy-process-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(43,87,151,0.03) 0%, transparent 70%);
    pointer-events: none;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 50px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--qy-primary), transparent);
    z-index: -1;
}

@media (max-width: 991px) {
    .process-step::after {
        display: none;
    }
}

.qy-news-card {
    border-radius: var(--qy-border-radius);
    overflow: hidden;
}

.qy-cities-section .btn-light {
    background-color: white;
    border: 1px solid #e9ecef;
    transition: var(--qy-transition);
    font-size: 0.875rem;
}

.qy-cities-section .btn-light:hover {
    background-color: var(--qy-primary);
    color: white;
    border-color: var(--qy-primary);
    transform: translateY(-2px);
}

.qy-testimonial-card {
    border-radius: var(--qy-border-radius);
    position: relative;
}

.qy-testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 80px;
    color: var(--qy-primary);
    opacity: 0.1;
    font-family: Georgia, serif;
    line-height: 1;
}

.qy-cta-section {
    background: linear-gradient(135deg, var(--qy-primary) 0%, var(--qy-primary-dark) 100%);
}

/* ==================== 文章页样式 ==================== */
.qy-page-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.qy-news-item {
    border-radius: var(--qy-border-radius);
    overflow: hidden;
    transition: var(--qy-transition);
}

.qy-news-item:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.qy-article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
}

.qy-article-content p {
    margin-bottom: 1.5rem;
}

.qy-article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1.5rem 0;
}

.qy-article-content h2,
.qy-article-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--qy-primary);
}

.qy-article-content ul,
.qy-article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

/* ==================== 表单样式 ==================== */
.qy-contact-form .form-control {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 0.75rem 1rem;
    transition: var(--qy-transition);
}

.qy-contact-form .form-control:focus {
    border-color: var(--qy-primary);
    box-shadow: 0 0 0 0.2rem rgba(43, 87, 151, 0.25);
}

.qy-contact-form .form-control-lg {
    font-size: 1rem;
}

/* ==================== 移动端导航 ==================== */
.qy-mobile-nav {
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 1030;
}

/* ==================== 页脚样式 ==================== */
.qy-footer {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
}

.qy-footer .footer-links a {
    transition: var(--qy-transition);
}

.qy-footer .footer-links a:hover {
    color: white !important;
    padding-left: 5px;
}

.hover-white:hover {
    color: white !important;
}

.hover-primary:hover {
    color: var(--qy-primary) !important;
}

/* ==================== 返回顶部 ==================== */
.qy-back-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1020;
    transition: var(--qy-transition);
    opacity: 0.8;
}

.qy-back-top:hover {
    opacity: 1;
    transform: translateY(-3px);
}

/* ==================== 响应式调整 ==================== */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2rem;
    }
    .display-5 {
        font-size: 1.75rem;
    }
    .display-6 {
        font-size: 1.5rem;
    }
    .qy-hero-section .carousel-item .hero-slide-bg {
        height: 500px;
    }
    .process-step {
        margin-bottom: 2rem;
    }
}

@media (min-width: 992px) {
    .qy-main-nav.scrolled {
        padding: 0.5rem 0;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
}

/* ==================== 打印样式 ==================== */
@media print {
    .qy-top-bar,
    .qy-main-nav,
    .qy-mobile-nav,
    .qy-footer,
    .qy-back-top,
    .qy-cta-section {
        display: none !important;
    }
    .card {
        border: 1px solid #ddd !important;
        box-shadow: none !important;
    }
}

/* ==================== 加载动画 ==================== */
.loading-shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@media (max-width: 767px) {
    .icon-top-400 {
        font-size: 100px !important;
    }
    .icon-top-300 {
        font-size: 75px !important;
    }
}

.icon-top-400 {
    font-size: 400px;
}
.icon-top-300 {
    font-size: 300px;
}