/**
 * 专业保安服务公司网站 - 主样式文件
 * 响应式设计，支持PC、平板、手机
 * CSS变量定义在 variables.css 中
 */

/* ==================== 基础样式 ==================== */
:root {
    --primary-color: var(--primary, #0066cc);
    --secondary-color: var(--primary-dark, #003d7a);
    --border-color: var(--border, #e8eaf6);
}

/* ==================== 页面标题公共样式 ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 80px 0;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* ==================== 可访问性辅助类 ==================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==================== 焦点样式增强 ==================== */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

/* ==================== 颜色对比度优化 ==================== */
.text-muted,
.help-text,
.form-hint {
    color: #5a5a5a;
}

.stat-label,
.section-title p,
.service-card-desc,
.case-card-desc {
    color: #5a5a5a;
}

.footer-section p,
.footer-contact p {
    color: #b0b0b0;
}

.info-list li span,
.contact-label {
    color: #5a5a5a;
}

/* 页面加载指示器样式 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    font-size: 16px;
    color: #333;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    /* 关键修复：防止html溢出 */
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #ffffff;
    /* 关键修复：防止body溢出 */
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 38px;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    -webkit-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -moz-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -ms-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    -webkit-tap-highlight-color: transparent;
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 1;
}

.btn:hover::before {
    width: 400px;
    height: 400px;
}

.btn span {
    position: relative;
    z-index: 2;
}

.btn-primary {
    background: #ffffff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 6px 20px rgba(0,102,204,0.15);
}

.btn-primary:hover {
    -webkit-transform: translateY(-4px);
    -moz-transform: translateY(-4px);
    -ms-transform: translateY(-4px);
    transform: translateY(-4px);
    background: var(--primary-color);
    color: var(--text-white);
    box-shadow: 0 12px 30px rgba(0,102,204,0.4);
    border-color: var(--primary-color);
}

.btn-primary:active {
    -webkit-transform: translateY(-2px);
    -moz-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,102,204,0.3);
}

.btn-secondary {
    background: -webkit-linear-gradient(135deg, var(--accent-color), var(--accent-light));
    background: -moz-linear-gradient(135deg, var(--accent-color), var(--accent-light));
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--text-white);
    box-shadow: 0 6px 20px rgba(255,107,53,0.35);
    border: none;
}

.btn-secondary:hover {
    -webkit-transform: translateY(-4px);
    -moz-transform: translateY(-4px);
    -ms-transform: translateY(-4px);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(255,107,53,0.5);
}

.btn-secondary:active {
    -webkit-transform: translateY(-2px);
    -moz-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255,107,53,0.4);
}

.btn-outline {
    background: #0066cc;
    border: 2px solid #ffffff;
    color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,102,204,0.3);
}

.btn-outline:hover {
    background: #ffffff;
    color: #0066cc;
    border: 2px solid #ffffff;
    -webkit-transform: translateY(-4px);
    -moz-transform: translateY(-4px);
    -ms-transform: translateY(-4px);
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(255,255,255,0.3);
}

.btn-outline:active {
    -webkit-transform: translateY(-2px);
    -moz-transform: translateY(-2px);
    -ms-transform: translateY(-2px);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255,255,255,0.2);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ==================== CTA按钮样式 ==================== */
.btn-cta-primary,
.btn-cta-outline {
    font-size: 18px;
    padding: 18px 42px;
    border-radius: 12px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    cursor: pointer;
}

.btn-cta-primary {
    background: #ffffff;
    color: var(--primary-color);
    border: 2px solid #ffffff;
    box-shadow: 0 8px 25px rgba(255,255,255,0.4);
}

.btn-cta-primary:hover {
    background: var(--text-white);
    color: var(--primary-color);
    border-color: var(--text-white);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255,255,255,0.6);
}

.btn-cta-primary:active {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255,255,255,0.5);
}

.btn-cta-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
    box-shadow: 0 4px 15px rgba(255,255,255,0.2);
}

.btn-cta-outline:hover {
    background: #ffffff;
    color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(255,255,255,0.6);
}

.btn-cta-outline:active {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255,255,255,0.5);
}

/* ==================== 响应式按钮 ==================== */
@media (max-width: 768px) {
    .btn {
        padding: 14px 32px;
        font-size: 15px;
    }
    
    .btn-cta-primary,
    .btn-cta-outline {
        padding: 16px 38px;
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ==================== 顶部导航 ==================== */
.site-header {
    background-color: var(--text-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    background-color: rgba(255, 255, 255, 0.98);
}

.header-top {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: 10px 0;
    font-size: 14px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info span {
    margin-right: 30px;
}

.contact-info i {
    margin-right: 8px;
}

.social-links a {
    color: var(--text-white);
    margin-left: 15px;
    font-size: 16px;
}

.social-links a:hover {
    color: var(--accent-color);
}

.main-nav {
    padding: 15px 0;
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-item {
    margin-right: 30px;
}

.nav-item a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
    display: inline-block;
    padding: 12px 16px;
    min-height: 48px;
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-item:hover a::after,
.nav-item.active a::after {
    width: 100%;
}

.nav-item.active a,
.nav-item:hover a {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}





/* ==================== Hero区域 ==================== */
.hero {
    /* 使用CSS变量定义背景颜色和透明度，支持后台动态调整 */
    background: -webkit-linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    background: -moz-linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    background: linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    color: #ffffff !important;
    color: var(--text-white, #ffffff) !important;
    padding: 140px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: -webkit-flex;
    display: -moz-flex;
    display: flex;
    -webkit-align-items: center;
    -moz-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    -moz-justify-content: center;
    justify-content: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@-webkit-keyframes pulse {
    0%, 100% { -webkit-transform: scale(1); transform: scale(1); opacity: 0.3; }
    50% { -webkit-transform: scale(1.1); transform: scale(1.1); opacity: 0.5; }
}

@-moz-keyframes pulse {
    0%, 100% { -moz-transform: scale(1); transform: scale(1); opacity: 0.3; }
    50% { -moz-transform: scale(1.1); transform: scale(1.1); opacity: 0.5; }
}

@keyframes pulse {
    0%, 100% { -webkit-transform: scale(1); -moz-transform: scale(1); transform: scale(1); opacity: 0.3; }
    50% { -webkit-transform: scale(1.1); -moz-transform: scale(1.1); transform: scale(1.1); opacity: 0.5; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 56px;
    margin-bottom: 25px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    animation: fadeInUp 0.8s ease;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

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

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

/* ==================== CTA行动区域 ==================== */
.cta-section {
    /* 使用CSS变量定义背景颜色和透明度，支持后台动态调整 */
    background: -webkit-linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    background: -moz-linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    background: linear-gradient(135deg, 
        rgba(var(--primary-rgb, 0, 86, 179), calc(var(--bg-opacity, 100) / 100)) 0%, 
        rgba(var(--secondary-rgb, 0, 61, 122), calc(var(--bg-opacity, 100) / 100)) 50%, 
        rgba(var(--gradient-rgb, 102, 126, 234), calc(var(--bg-opacity, 100) / 100)) 100%) !important;
    color: #ffffff !important;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
    text-align: center;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 70%);
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 20px;
    color: #ffffff !important;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.cta-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.7;
    color: #ffffff !important;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-cta-primary {
    font-size: 18px !important;
    padding: 16px 40px !important;
    background: #ffffff !important;
    color: #0056b3 !important;
    border: 2px solid #ffffff !important;
    border-radius: 8px !important;
    text-decoration: none !important;
    font-weight: 700 !important;
    transition: all 0.3s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-shadow: 0 4px 15px rgba(255,255,255,0.3) !important;
}

/* 确保CTA主要按钮不被其他样式覆盖 */
.cta-section .btn-cta-primary,
section.cta-section .btn-cta-primary {
    background: #ffffff !important;
    color: #0056b3 !important;
    border-color: #ffffff !important;
}

.cta-section .btn-cta-primary:hover,
section.cta-section .btn-cta-primary:hover {
    background: #f8f9fa !important;
    color: #0056b3 !important;
    border-color: #ffffff !important;
    transform: translateY(-3px) !important;
    box-shadow: 0 8px 25px rgba(255,255,255,0.4) !important;
}

.btn-cta-outline {
    font-size: 18px !important;
    padding: 16px 40px !important;
    background: transparent !important;
    color: #ffffff !important;
    border: 2px solid #ffffff !important;
    border-radius: 8px !important;
    text-decoration: none !important;
    font-weight: 700 !important;
    transition: all 0.3s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.btn-cta-outline:hover {
    background: #ffffff !important;
    color: #0056b3 !important;
    transform: translateY(-3px) !important;
    box-shadow: 0 8px 25px rgba(255,255,255,0.3) !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-title {
        font-size: 28px;
    }
    
    .cta-subtitle {
        font-size: 16px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn-cta-primary,
    .btn-cta-outline {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .cta-section {
        padding: 40px 0;
    }
    
    .cta-title {
        font-size: 24px;
    }
    
    .cta-subtitle {
        font-size: 14px;
        margin-bottom: 30px;
    }
}

/* ==================== 数据统计区域 ==================== */
.stats-grid {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 1fr 1fr 1fr;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding: 20px 0;
}

/* Edge浏览器兼容性 */
@supports not (display: grid) {
    .stats-grid {
        display: flex;
        flex-wrap: wrap;
    }
    .stat-item {
        flex: 1 1 25%;
        min-width: 200px;
        margin-right: 40px;
        margin-bottom: 40px;
    }
    .stat-item:nth-child(4n) {
        margin-right: 0;
    }
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -20px;
    transform: translateY(-50%);
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--border-color), transparent);
}

.stat-item:last-child::after {
    display: none;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Edge浏览器备用方案 */
@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
    .stat-number {
        color: var(--primary-color);
        background: none;
    }
}

.stat-label {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ==================== 服务卡片 ==================== */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 70px;
}

.section-title h2 {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 18px;
    font-weight: 800;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 700px;
    margin: 25px auto 0;
    line-height: 1.7;
}

.service-grid {
    display: -ms-grid;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 35px;
    padding: 0 10px;
}

/* Edge浏览器兼容性 */
@supports not (display: grid) {
    .service-grid {
        display: -webkit-flex;
        display: -moz-flex;
        display: flex;
        -webkit-flex-wrap: wrap;
        -moz-flex-wrap: wrap;
        flex-wrap: wrap;
        margin: -17.5px;
    }
    .service-card {
        -webkit-flex: 1 1 calc(50% - 35px);
        -moz-flex: 1 1 calc(50% - 35px);
        flex: 1 1 calc(50% - 35px);
        min-width: 280px;
        margin: 17.5px;
    }
}

.service-card {
    background: var(--text-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-color);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    -webkit-transform: translateY(-12px);
    -moz-transform: translateY(-12px);
    -ms-transform: translateY(-12px);
    transform: translateY(-12px);
    box-shadow: var(--shadow-hover);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.service-card-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: -webkit-linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
    background: -moz-linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
    background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.3));
    opacity: 0;
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
}

.service-card:hover .service-card-img::after {
    opacity: 1;
}

.service-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
}

.service-card:hover .service-card-img img {
    -webkit-transform: scale(1.08);
    -moz-transform: scale(1.08);
    -ms-transform: scale(1.08);
    transform: scale(1.08);
}

.service-card-content {
    padding: 30px;
}

.service-card-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-card-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 18px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.service-card-price {
    font-size: 19px;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-card-price i {
    font-size: 16px;
}

.service-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
}

.service-card-link:hover {
    color: var(--accent-color);
    gap: 12px;
}

/* ==================== 案例展示 ==================== */
.cases-grid {
    display: -ms-grid;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 35px;
    padding: 0 10px;
}

/* Edge浏览器兼容性 */
@supports not (display: grid) {
    .cases-grid {
        display: -webkit-flex;
        display: -moz-flex;
        display: flex;
        -webkit-flex-wrap: wrap;
        -moz-flex-wrap: wrap;
        flex-wrap: wrap;
        margin: -17.5px;
    }
    .case-card {
        -webkit-flex: 1 1 calc(50% - 35px);
        -moz-flex: 1 1 calc(50% - 35px);
        flex: 1 1 calc(50% - 35px);
        min-width: 280px;
        margin: 17.5px;
    }
}

.case-card {
    background: var(--text-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-color);
}

.case-card:hover {
    -webkit-transform: translateY(-8px);
    -moz-transform: translateY(-8px);
    -ms-transform: translateY(-8px);
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.case-card-img {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.case-card-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: -webkit-linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.4));
    background: -moz-linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.4));
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.4));
    opacity: 0;
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
}

.case-card:hover .case-card-img::before {
    opacity: 1;
}

.case-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
}

.case-card:hover .case-card-img img {
    -webkit-transform: scale(1.05);
    -moz-transform: scale(1.05);
    -ms-transform: scale(1.05);
    transform: scale(1.05);
}

.case-card-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: -webkit-linear-gradient(135deg, var(--accent-color), var(--accent-light));
    background: -moz-linear-gradient(135deg, var(--accent-color), var(--accent-light));
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: var(--text-white);
    padding: 8px 18px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(255,107,53,0.4);
    z-index: 2;
}

.case-card-content {
    padding: 28px;
}

.case-card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: var(--transition);
}

.case-card:hover .case-card-title {
    color: var(--primary-color);
}

.case-card-desc {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 18px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-gray);
}

.case-card-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.case-card-meta i {
    color: var(--primary-color);
}

.case-detail-btn {
    color: #ffffff;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

.case-detail-btn:hover {
    color: var(--accent-color);
}

/* ==================== 团队成员 ==================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.team-member {
    background: var(--text-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.team-member-img {
    height: 280px;
    overflow: hidden;
    position: relative;
}

.team-member-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member-content {
    padding: 25px;
}

.team-member-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.team-member-position {
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.team-member-qualifications {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ==================== 表单样式 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background-color: #fff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0,86,179,0.1);
    transform: translateY(-1px);
}

.form-control:hover {
    border-color: var(--primary-light);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.captcha-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-group .form-control {
    flex: 1;
}

.captcha-img {
    height: 44px;
    border-radius: 5px;
    cursor: pointer;
}

.refresh-captcha {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 10px;
    font-size: 18px;
    transition: var(--transition);
}

.refresh-captcha:hover {
    transform: rotate(180deg);
}

/* ==================== 页脚 ==================== */
.site-footer {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-white);
}

.footer-section p {
    font-size: 14px;
    line-height: 1.8;
    color: #b0b0b0;
    margin-bottom: 10px;
}

.footer-contact p {
    display: flex;
    align-items: center;
}

.footer-contact i {
    margin-right: 10px;
    color: var(--accent-color);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #b0b0b0;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.qrcode img {
    width: 120px;
    height: 120px;
    border-radius: 5px;
}

.qrcode p {
    text-align: center;
    margin-top: 10px;
    font-size: 12px;
}

.footer-bottom {
    background-color: #1a252f;
    padding: 20px 0;
}

.footer-bottom-content {
    text-align: center;
    color: #888;
    font-size: 13px;
}

.footer-bottom-content p {
    margin-bottom: 5px;
}

.footer-bottom-content a {
    color: #888;
}

.footer-bottom-content a:hover {
    color: var(--accent-color);
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    -webkit-transform: translateY(-5px);
    -moz-transform: translateY(-5px);
    -ms-transform: translateY(-5px);
    transform: translateY(-5px);
}

/* ==================== 在线咨询悬浮框 ==================== */
.floating-consult {
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 998;
}

.consult-toggle {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    color: var(--text-white);
    border-radius: 50%;
    display: -webkit-flex;
    display: -moz-flex;
    display: flex;
    -webkit-align-items: center;
    -moz-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    -moz-justify-content: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: var(--shadow-lg);
    -webkit-transition: var(--transition);
    -moz-transition: var(--transition);
    -ms-transition: var(--transition);
    transition: var(--transition);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.consult-toggle:hover {
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
    background-color: #e55a2b;
}

.consult-box {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 360px;
    max-height: 80vh;
    overflow-y: auto;
    background: var(--text-white);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    display: none;
    animation: slideUp 0.3s ease;
}

.consult-box.active {
    display: block;
}

.quick-consult-form .form-group {
    margin-bottom: 12px;
}

.quick-consult-form .form-control:not(.contact-service-select) {
    padding: 10px;
    font-size: 14px;
    width: 100%;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.quick-consult-form select.form-control:not(.contact-service-select) {
    height: auto;
    padding: 10px 30px 10px 10px;
    line-height: 1.5;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-color: #fff;
}

.contact-service-select {
    height: 46px !important;
    padding: 12px 30px 12px 16px !important;
    line-height: 1.5 !important;
    font-size: 15px !important;
    border: 2px solid var(--border-color) !important;
    border-radius: 8px !important;
    appearance: none !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-color: #fff;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-service-select:focus {
    outline: none;
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.quick-consult-form .captcha-group {
    margin-bottom: 15px;
}

.quick-consult-form .captcha-group input {
    flex: 1;
}

.quick-consult-form .captcha-img,
.quick-consult-form .consult-captcha-img {
    height: 38px;
    border-radius: 5px;
    cursor: pointer;
    border: 1px solid #ddd;
}

.quick-consult-form .refresh-captcha,
.quick-consult-form .consult-refresh-captcha {
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 5px;
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.quick-consult-form .refresh-captcha:hover,
.quick-consult-form .consult-refresh-captcha:hover {
    background: var(--primary-dark);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.consult-header {
    background: var(--primary-color);
    color: var(--text-white);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.consult-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.consult-content {
    padding: 20px;
}

.consult-response {
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    font-size: 14px;
    display: none;
}

.consult-response.success {
    background-color: #d4edda;
    color: #155724;
    display: block;
}

.consult-response.error {
    background-color: #f8d7da;
    color: #721c24;
    display: block;
}

/* ==================== 轮播区域 ==================== */
.carousel-section {
    position: relative;
    margin-bottom: 0;
    z-index: 1;
}

.carousel-section .carousel {
    position: relative;
    z-index: 1;
}

.carousel-section .carousel-item {
    height: 600px;
    position: relative;
    overflow: hidden;
}

.carousel-section .carousel-mask-overlay {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
}

.carousel-section .carousel-item img {
    object-fit: contain;
    object-position: center;
    width: 100%;
    height: 100%;
}

.carousel-section .carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    bottom: auto;
    right: auto;
    text-align: center;
    z-index: 10;
    max-width: 800px;
    padding: 0 20px;
}

@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .carousel-section .carousel-mask-overlay {
        background: rgba(0, 61, 122, 0.7) !important;
    }
}

@supports not (object-fit: cover) {
    .carousel-section .carousel-item img {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        min-width: 100%;
        min-height: 100%;
        width: auto;
        height: auto;
    }
}

.carousel-section .carousel-caption {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    bottom: auto;
    right: auto;
    text-align: center;
    z-index: 10;
    max-width: 800px;
    padding: 0 20px;
}

.carousel-section .carousel-caption h1 {
    font-size: 56px;
    margin-bottom: 25px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    animation: fadeInUp 0.8s ease;
    color: white;
}

.carousel-section .carousel-caption p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.2s both;
    color: white;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.carousel-section .hero-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.carousel-section .carousel-indicators li {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin: 0 8px;
    background-color: rgba(255,255,255,0.5);
    transition: all 0.3s ease;
}

.carousel-section .carousel-indicators li.active {
    background-color: white;
    transform: scale(1.2);
}

.carousel-section .carousel-control-prev,
.carousel-section .carousel-control-next {
    width: 50px;
    height: 50px;
    background-color: rgba(0,0,0,0.3);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.3s ease;
}

.carousel-section .carousel-control-prev:hover,
.carousel-section .carousel-control-next:hover {
    background-color: rgba(0,0,0,0.5);
    transform: translateY(-50%) scale(1.1);
}

.carousel-section .carousel-control-prev-icon,
.carousel-section .carousel-control-next-icon {
    width: 24px;
    height: 24px;
}

/* ==================== 轮播图响应式样式 ==================== */
.carousel-section .carousel-item {
    height: 600px;
    position: relative;
    background: linear-gradient(135deg, #0056b3, #003d7a, #667eea);
}

@media (max-width: 768px) {
    .carousel-section .carousel-item {
        height: 400px;
    }
}

@media (max-width: 576px) {
    .carousel-section .carousel-item {
        height: 300px;
    }
    .carousel-section .carousel-caption h1 {
        font-size: 1.5rem;
    }
    .carousel-section .carousel-caption p {
        font-size: 1rem;
    }
    .carousel-section .hero-buttons .btn {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
}

/* ==================== 优势区域样式 ==================== */
.advantage-card {
    text-align: center;
    padding: 40px 30px;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 36px;
    color: #fff;
}

/* ==================== 合作伙伴区域样式 ==================== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    opacity: 0.6;
}

.partner-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 30px;
    text-align: center;
    border-radius: 10px;
    color: #666;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
}

.partner-item img {
    max-width: 120px;
    max-height: 60px;
    object-fit: contain;
}

/* ==================== 辅助类 ==================== */
.bg-light {
    background-color: var(--bg-light);
}

.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.pb-60 {
    padding-bottom: 60px;
}

/* ==================== 服务流程样式 ==================== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    text-align: center;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    z-index: 0;
}

.process-step {
    padding: 20px 10px;
    position: relative;
    z-index: 1;
}

.process-step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-step:hover .process-step-number {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

.process-step h3 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
}

.process-step p {
    color: var(--text-light);
    font-size: 13px;
    line-height: 1.5;
}

@media (max-width: 1200px) {
    .process-steps {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-steps::before {
        display: none;
    }
}

@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .process-step-number {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .process-step h3 {
        font-size: 14px;
    }
    
    .process-step p {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .process-step {
        padding: 15px 5px;
    }
}

/* ==================== FAQ样式 ==================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item[open] {
    background: #fff;
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 20px;
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    list-style: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-left: auto;
    transition: transform 0.3s ease;
}

.faq-item[open] .faq-question::after {
    transform: rotate(180deg);
}

.faq-question i {
    font-size: 20px;
    color: var(--accent-color);
}

.faq-answer {
    padding: 0 20px 20px 52px;
    color: var(--text-light);
    line-height: 1.6;
}

.faq-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ==================== 团队优势样式 ==================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-item {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.advantage-item-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 24px;
}

.advantage-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.advantage-item p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ==================== 加入我们样式 ==================== */
.join-content {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 60px;
    border-radius: 10px;
    text-align: center;
}

.join-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.join-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.join-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 客户评价样式 ==================== */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.testimonial-card .quote-icon {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.testimonial-card .content {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 20px;
}

.testimonial-card .author {
    display: flex;
    align-items: center;
}

.testimonial-card .author-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
}

.testimonial-card .author-avatar i {
    color: var(--text-light);
}

.testimonial-card .author-info h4 {
    font-weight: 600;
    margin-bottom: 2px;
}

.testimonial-card .author-info p {
    font-size: 14px;
    color: var(--text-light);
}

/* ==================== 服务卡片占位符样式 ==================== */
.service-card-placeholder {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    gap: 12px;
}

.service-card-placeholder i {
    font-size: 48px;
    opacity: 0.9;
}

.service-card-placeholder-text {
    font-size: 16px;
    font-weight: 600;
    opacity: 0.8;
}

/* ==================== 案例卡片占位符样式 ==================== */
.case-card-placeholder {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #0056b3 0%, #007bff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: bold;
    position: relative;
}

.case-card-placeholder .case-card-tag {
    position: absolute;
    top: 10px;
    right: 10px;
}

/* ==================== 团队成员占位符样式 ==================== */
.team-member-placeholder {
    width: 100%;
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 48px;
    font-weight: bold;
}

.team-member-placeholder.management {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
}

.team-member-placeholder.special {
    background: linear-gradient(135deg, #0056b3 0%, #007bff 100%);
}

/* ==================== 响应式补充 ==================== */
@media (max-width: 768px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .join-content {
        padding: 40px 20px;
    }
    
    .join-content h3 {
        font-size: 24px;
    }
    
    .join-content p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .process-steps {
        grid-template-columns: 1fr;
    }
}

/* ==================== 联系页面样式 ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.contact-item {
    background: #fff;
    padding: 40px;
    text-align: center;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #fff;
}

.contact-icon-phone { background: var(--primary-color); }
.contact-icon-email { background: var(--accent-color); }
.contact-icon-address { background: #28a745; }

.contact-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.contact-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.contact-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.consultation-form h2,
.contact-info h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.service-hint {
    margin-bottom: 20px;
    color: var(--text-light);
}

.btn-submit {
    padding: 15px;
    font-size: 18px;
    position: relative;
}

.btn-submit .btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: inline;
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.consult-response {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    display: none;
}

.consult-response.success {
    display: block;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.consult-response.error {
    display: block;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.info-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.info-card h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.info-list {
    line-height: 2;
}

.info-list li {
    display: flex;
    align-items: center;
}

.info-list i {
    width: 25px;
    color: var(--primary-color);
}

.info-list a {
    color: inherit;
    text-decoration: none;
}

.info-list a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.map-container {
    width: 100%;
    height: 300px;
    background: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.map-skeleton {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

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

.map-disabled {
    width: 100%;
    height: 300px;
    background: #f5f5f5;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed #ddd;
    color: var(--text-light);
    text-align: center;
}

.map-provider-hint {
    margin-top: 15px;
    font-size: 14px;
    color: var(--text-light);
}

.social-media {
    margin-top: 30px;
}

.social-media > p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.social-links {
    display: flex;
    gap: 15px;
    flex-direction: row;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.social-wechat { background: #07c160; }
.social-weibo { background: #e6162d; }
.social-tiktok { background: #000; }

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-error {
    display: none;
    color: var(--danger-color);
    font-size: 13px;
    margin-top: 5px;
}

.form-error.show {
    display: block;
}

.captcha-wrapper {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-wrapper .form-control {
    flex: 1;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* ==================== 案例页面样式 ==================== */
.cases-page-section {
    padding: 60px 0;
}

.cases-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* ==================== 页面头部样式 ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 80px 0;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .page-header {
        padding: 60px 0;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .page-header p {
        font-size: 16px;
    }
}

/* ==================== 关于我们页面样式 ==================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-text p {
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 15px;
}

.about-image img {
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    max-width: 100%;
    height: auto;
}

/* ==================== 时间线样式 ==================== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline-line {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    width: 45%;
    text-align: right;
    padding-right: 30px;
}

.timeline-item:nth-child(even) .timeline-content {
    width: 45%;
    text-align: left;
    padding-left: 30px;
}

.timeline-item:nth-child(odd) .timeline-empty {
    width: 45%;
}

.timeline-item:nth-child(even) .timeline-empty {
    width: 45%;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

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

@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 50px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: 100%;
        text-align: left;
        padding-left: 0;
        padding-right: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-empty,
    .timeline-item:nth-child(even) .timeline-empty {
        display: none;
    }
    
    .timeline-dot {
        left: 20px;
    }
}

/* ==================== 资质认证样式 ==================== */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.cert-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.cert-card .cert-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.cert-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.cert-card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 10px;
}

/* ==================== 企业文化样式 ==================== */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.culture-item {
    background: #fff;
    padding: 40px 30px;
    text-align: center;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.culture-item .culture-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: #fff;
}

.culture-icon-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.culture-icon-accent {
    background: linear-gradient(135deg, var(--accent-color), #e55a2b);
}

.culture-icon-success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
}

.culture-icon-purple {
    background: linear-gradient(135deg, #6c5ce7, #a29bfe);
}

.culture-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
}

.culture-item h3.primary { color: var(--primary-color); }
.culture-item h3.accent { color: var(--accent-color); }
.culture-item h3.success { color: #28a745; }
.culture-item h3.purple { color: #6c5ce7; }

.culture-item p {
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        order: -1;
    }
}

/* ==================== 案例详情页面头部 ==================== */
.page-header-detail {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 100px 0;
}

.page-header-detail h1 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 15px;
    text-align: center;
}

.page-header-detail p {
    font-size: 18px;
    opacity: 0.9;
    text-align: center;
}

@media (max-width: 768px) {
    .page-header-detail {
        padding: 80px 0;
    }
    
    .page-header-detail h1 {
        font-size: 28px;
    }
}