/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 主色调和字体设置 */
:root {
    --primary-color: #0F3460;
    --secondary-color: #333333;
    --background-color: #FFFFFF;
    --light-background: #F8F9FA;
    --text-color: #333333;
    --light-text: #666666;
    --border-color: #E9ECEF;
    --accent-color: #165DFF;
    --success-color: #00B42A;
    --danger-color: #F53F3F;
    --warning-color: #FF7D00;
    --hover-color: #1E40AF;
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background-color: var(--background-color);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 排版优化 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

/* 响应式排版 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
}

/* 导航栏样式 */
#mainNav {
    background-color: var(--primary-color);
    transition: var(--transition);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

#mainNav.navbar-shrink {
    padding: 0.75rem 0;
    background-color: rgba(15, 52, 96, 0.98);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.navbar-brand .logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--background-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.navbar-brand:hover .logo-text {
    color: var(--background-color);
    opacity: 0.9;
}

.navbar-nav .nav-link {
    color: var(--background-color);
    font-weight: 500;
    margin-left: 1.5rem;
    transition: var(--transition);
    padding: 0.75rem 0;
    position: relative;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--background-color);
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 100%;
    background-color: var(--background-color);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--background-color);
    opacity: 0.9;
}

/* 首屏区域样式 */
.masthead {
    background: linear-gradient(rgba(15, 52, 96, 0.8), rgba(15, 52, 96, 0.8)), url('../images/background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0;
}

.masthead h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.masthead p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.advantages-list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.advantage-item {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    color: var(--background-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.advantage-item i {
    color: var(--success-color);
}

.contact-info .btn {
    margin-bottom: 1rem;
}

.lawyer-photo-container {
    max-width: 400px;
    margin: 0 auto;
}

.lawyer-photo-container img {
    width: 100%;
    max-width: 300px;
    border: 5px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
}

.lawyer-photo-container img:hover {
    transform: scale(1.05);
}

/* 服务领域样式 */
.services-section {
    background-color: var(--light-background);
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--light-text);
    margin-bottom: 3rem;
}

.service-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-color);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: var(--light-text);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-card .btn {
    align-self: flex-start;
}

/* 案例展示样式 */
.case-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.case-card h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.case-meta {
    font-size: 0.875rem;
    color: var(--light-text);
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.case-highlights {
    margin: 1rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.case-highlight {
    background-color: var(--light-background);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.875rem;
    color: var(--accent-color);
    font-weight: 500;
}

.case-summary {
    color: var(--light-text);
    margin-bottom: 1rem;
    flex-grow: 1;
}

/* 新闻样式 */
.news-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-card h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.news-meta {
    font-size: 0.875rem;
    color: var(--light-text);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.news-summary {
    color: var(--light-text);
    margin-bottom: 1rem;
    flex-grow: 1;
}

/* 页脚样式 */
.footer {
    background-color: var(--primary-color);
    color: var(--background-color);
    padding: 3rem 0 1rem;
}

.footer h5 {
    color: var(--background-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer p,
.footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: var(--background-color);
}

.footer ul {
    padding-left: 0;
    list-style: none;
}

.footer ul li {
    margin-bottom: 0.5rem;
}

.social-links a {
    display: inline-block;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--background-color);
}

/* 表单样式 */
.form-section {
    background-color: var(--light-background);
    padding: 3rem 0;
}

.form-container {
    background-color: var(--background-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(22, 93, 255, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

.captcha-container {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.captcha-img {
    width: 120px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.success-message {
    color: var(--success-color);
    font-size: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: rgba(0, 180, 42, 0.1);
    border-radius: 4px;
    border: 1px solid rgba(0, 180, 42, 0.2);
}

/* 律师介绍页面样式 */
.about-section {
    padding: 3rem 0;
}

.lawyer-info {
    margin-bottom: 3rem;
}

.lawyer-details {
    margin-top: 2rem;
}

.lawyer-detail-item {
    margin-bottom: 1.5rem;
}

.lawyer-detail-item h4 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.lawyer-detail-item ul {
    padding-left: 1.5rem;
    color: var(--light-text);
}

.lawyer-detail-item ul li {
    margin-bottom: 0.25rem;
}

.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 0;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--accent-color);
    border: 2px solid var(--background-color);
    box-shadow: 0 0 0 2px var(--accent-color);
}

.timeline-item h4 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.timeline-date {
    font-size: 0.875rem;
    color: var(--light-text);
    margin-bottom: 0.5rem;
}

.timeline-content {
    color: var(--text-color);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .masthead h1 {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    .masthead {
        height: auto;
        padding: 100px 0 50px;
    }
    
    .advantages-list {
        justify-content: center;
    }
    
    .contact-info {
        text-align: center;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-item {
        padding-left: 2rem;
    }
    
    .timeline-item::before {
        left: 4px;
    }
}

@media (max-width: 768px) {
    .masthead h1 {
        font-size: 2.5rem;
    }
    
    .masthead p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .case-meta {
        gap: 0.5rem;
    }
    
    /* 移动端导航栏样式 */
    .navbar-collapse {
        background-color: var(--primary-color);
        padding: var(--spacing-sm);
        border-radius: var(--border-radius-md);
        margin-top: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-nav .nav-link {
        margin-left: 0;
        padding: 0.75rem 1rem;
        margin-bottom: var(--spacing-xs);
        border-radius: var(--border-radius-sm);
    }
    
    .navbar-nav .nav-link:last-child {
        margin-bottom: 0;
    }
    
    .navbar-nav .nav-link::after {
        display: none;
    }
    
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link.active {
        background-color: rgba(255, 255, 255, 0.1);
        color: var(--background-color);
        transform: translateX(5px);
    }
}

@media (max-width: 576px) {
    .masthead h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .case-card,
    .news-card {
        margin-bottom: 1.5rem;
    }
    
    .captcha-container {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 平滑滚动效果 */
html {
    scroll-behavior: smooth;
}

/* 过渡动画 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 加载动画 */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.pagination .page-item {
    margin: 0;
}

.pagination .page-link {
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
    background-color: var(--background-color);
    min-width: 40px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: none;
}

.pagination .page-link:hover {
    background-color: var(--light-background);
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pagination .page-item.active .page-link {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--background-color);
    font-weight: 600;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination .page-item.disabled .page-link {
    background-color: var(--light-background);
    border-color: var(--border-color);
    color: var(--light-text);
    cursor: not-allowed;
    opacity: 0.6;
}

/* 按钮样式 */
.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(22, 93, 255, 0.3);
}

.btn-outline-primary {
    color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(22, 93, 255, 0.3);
}

/* 卡片通用样式 */
.card {
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}