/* ============================================
   效率工厂官网 - 主样式文件
   包含所有页面的完整样式
   ============================================ */

/* ===== 重置与基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* ===== 排版 ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    color: #1a365d;
}

h2 {
    font-size: 2.5rem;
    color: #2d3748;
    text-align: center;
    margin-bottom: 3rem;
}

h3 {
    font-size: 1.5rem;
    color: #2d3748;
}

p {
    margin-bottom: 1rem;
    color: #4a5568;
}

.section-title {
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #007bff, #00c6ff);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #718096;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #007bff;
    border: 2px solid #007bff;
}

.btn-secondary:hover {
    background: #007bff;
    color: white;
}

.btn-nav {
    background: linear-gradient(135deg, #ff7e5f, #feb47b);
    color: white;
    padding: 10px 24px;
    border-radius: 6px;
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 126, 95, 0.3);
}

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-outline {
    background: transparent;
    border: 2px solid #007bff;
    color: #007bff;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #007bff;
    color: white;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    margin-right: 12px;
}

.logo-image {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-right: 12px;
    flex-shrink: 0;
}

/* 页脚中的logo可以稍大一些 */
.footer .logo-image {
    width: 40px;
    height: 40px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-weight: 700;
    font-size: 1.4rem;
    color: #1a365d;
}

.logo-sub {
    font-size: 0.75rem;
    color: #718096;
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #007bff;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #007bff;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #4a5568;
    cursor: pointer;
}

/* ===== 页面头部通用样式 ===== */
.page-header {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, #007bff 0%, #00c6ff 100%);
    color: white;
    text-align: center;
    margin-top: 80px;
}

.page-header h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto;
}

/* ===== 首页样式 ===== */

/* Hero 区域 */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.2rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #1a365d;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #4a5568;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.dashboard-preview {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-10deg);
    transition: transform 0.5s ease;
}

.dashboard-preview:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.dashboard-header {
    display: flex;
    justify-content: space-around;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e2e8f0;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    font-size: 0.9rem;
    color: #718096;
    font-weight: 500;
}

.dashboard-chart {
    height: 200px;
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.dashboard-chart::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(0, 123, 255, 0.1) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* APP下载提示 */
.app-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
}

.app-cta .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.app-cta h2 {
    color: white;
    text-align: left;
}

.app-cta p {
    color: #cbd5e0;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.app-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.app-badge {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-badge:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.app-badge i {
    font-size: 2rem;
    margin-right: 12px;
}

.app-badge div {
    display: flex;
    flex-direction: column;
}

.app-badge span {
    font-weight: 600;
    font-size: 1rem;
}

.app-badge small {
    font-size: 0.8rem;
    opacity: 0.8;
}

.phone-mockup-small {
    width: 250px;
    height: 500px;
    margin: 0 auto;
    background: #1a1a1a;
    border-radius: 30px;
    position: relative;
    padding: 15px;
    border: 8px solid #333;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.phone-screen-small {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #0f2027, #203a43);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-metrics {
    text-align: center;
    color: white;
}

.app-metrics .metric {
    font-size: 1.2rem;
    margin: 10px 0;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

/* 价值主张卡片 */
.value-proposition {
    padding: 100px 0;
    background: white;
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.value-card h3 {
    margin-bottom: 1rem;
    color: #1a365d;
}

/* 解决方案卡片 */
.solutions-preview {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.solution-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.solution-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.solution-card:hover {
    border-color: #007bff;
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 123, 255, 0.15);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.8rem;
}

.solution-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1.5rem;
    transition: gap 0.3s ease;
}

.solution-link:hover {
    gap: 1rem;
}

/* 客户信任区 */
.client-trust {
    padding: 100px 0;
    background: white;
}

.client-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.client-logo {
    background: #f8f9fa;
    height: 100px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #4a5568;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.client-logo:hover {
    background: #007bff;
    color: white;
    transform: translateY(-5px);
}

/* ROI 计算器 */
.roi-calculator {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
}

.roi-calculator h2 {
    color: white;
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.calculator-info h2 {
    font-size: 2.5rem;
    text-align: left;
    margin-bottom: 1.5rem;
}

.calculator-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #cbd5e0;
}

.calculator-benefits {
    list-style: none;
}

.calculator-benefits li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calculator-benefits i {
    color: #48bb78;
}

.calculator-form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    color: #2d3748;
}

.calculator-form h3 {
    margin-bottom: 1.5rem;
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #4a5568;
}

.form-group input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input[type="number"]:focus {
    outline: none;
    border-color: #007bff;
}

.slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: #e2e8f0;
    border-radius: 3px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #007bff;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.slider-value {
    text-align: center;
    margin-top: 0.5rem;
    font-weight: 600;
    color: #007bff;
}

.calculator-result {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    display: none;
}

.calculator-result.active {
    display: block;
    animation: slideUp 0.5s ease;
}

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

/* ===== 解决方案页面样式 ===== */

/* 解决方案导航 */
.solutions-nav {
    background: #f8f9fa;
    padding: 1.5rem 0;
    position: sticky;
    top: 80px;
    z-index: 99;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.solution-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.solution-tab {
    padding: 0.8rem 1.5rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    text-decoration: none;
    color: #4a5568;
    font-weight: 600;
    transition: all 0.3s ease;
}

.solution-tab:hover,
.solution-tab.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
    transform: translateY(-2px);
}

/* 解决方案详情 */
.solution-detail {
    padding: 100px 0;
}

.solution-detail.bg-light {
    background: #f8f9fa;
}

.solution-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.solution-header .solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.solution-tagline {
    font-size: 1.2rem;
    color: #718096;
    margin-top: 0.5rem;
}

.solution-content h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 2.5rem 0 1.5rem;
    color: #2d3748;
}

.solution-content h3 i {
    color: #007bff;
}

.solution-problem ul {
    list-style: none;
    padding: 0;
}

.solution-problem li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.solution-problem li:before {
    content: '•';
    color: #007bff;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 方法步骤 */
.approach-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.step h4 {
    margin-bottom: 0.5rem;
}

/* 工具网格 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.tool {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tool:hover {
    border-color: #007bff;
    color: #007bff;
    transform: translateY(-2px);
}

/* 结果卡片 */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.result-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.result-value {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.result-label {
    color: #718096;
    font-size: 0.9rem;
}

/* 系统卡片 */
.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.system-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.system-card h4 {
    color: #007bff;
    margin-bottom: 1rem;
}

.system-card ul {
    list-style: none;
    padding: 0;
}

.system-card li {
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.system-card li:before {
    content: '✓';
    color: #48bb78;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 专长卡片 */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.expertise-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.expertise-card:hover {
    transform: translateY(-5px);
}

.expertise-card h4 {
    color: #007bff;
    margin-bottom: 1rem;
}

/* 服务卡片 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.service-card h4 {
    color: #007bff;
    margin-bottom: 1rem;
}

/* 解决方案对比表格 */
.solution-comparison {
    padding: 100px 0;
    background: #f8f9fa;
}

.comparison-table {
    overflow-x: auto;
    margin-top: 3rem;
}

.comparison-table table {
    width: 100%;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.comparison-table th {
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    padding: 1rem;
    text-align: center;
    font-weight: 600;
}

.comparison-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover {
    background: #f8f9fa;
}

/* 解决方案CTA */
.solution-contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    text-align: center;
}

.solution-contact h2 {
    color: white;
    margin-bottom: 1rem;
}

.solution-contact p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* ===== 成功案例页面样式 ===== */

/* 案例筛选 */
.cases-filter {
    background: #f8f9fa;
    padding: 2rem 0;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.6rem 1.2rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-weight: 500;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tab:hover,
.filter-tab.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
}

/* 案例卡片 */
.cases-list {
    padding: 80px 0;
}

.case-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    margin-bottom: 3rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e2e8f0;
}

.case-industry {
    background: #007bff;
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.case-duration {
    color: #718096;
    font-size: 0.9rem;
}

.case-content {
    padding: 2rem;
}

.case-info h3 {
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.case-metrics .metric {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.case-metrics .metric-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 0.3rem;
}

.case-metrics .metric-label {
    font-size: 0.9rem;
    color: #718096;
}

/* 案例详情 */
.case-details {
    margin: 2rem 0;
}

.detail-section {
    margin-bottom: 2rem;
}

.detail-section h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #2d3748;
    margin-bottom: 1rem;
}

.detail-section h4 i {
    color: #007bff;
}

.detail-section ul,
.detail-section ol {
    padding-left: 1.5rem;
    color: #4a5568;
    line-height: 1.6;
}

.detail-section li {
    margin-bottom: 0.5rem;
}

.detail-section ol {
    list-style-type: decimal;
}

.detail-section ol li {
    margin-bottom: 0.8rem;
}

/* 结果网格 */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.result-item .result-icon {
    width: 40px;
    height: 40px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-item .result-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
}

.result-item .result-label {
    font-size: 0.9rem;
    color: #718096;
}

.result-item .success {
    color: #48bb78;
}

/* 客户证言 */
.case-testimonial {
    margin-top: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border-left: 4px solid #007bff;
}

.testimonial-content p {
    font-style: italic;
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.author-info .author-name {
    font-weight: 700;
    color: #2d3748;
}

.author-info .author-title {
    color: #718096;
    font-size: 0.9rem;
}

.author-info .author-company {
    color: #007bff;
    font-weight: 600;
    font-size: 0.9rem;
}

/* 更多案例 */
.more-cases {
    padding: 80px 0;
    background: #f8f9fa;
}

.case-mini-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.case-mini-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.case-mini-card:hover {
    transform: translateY(-5px);
}

.case-mini-card h4 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.case-mini-card p {
    color: #718096;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.case-tag {
    display: inline-block;
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 案例CTA */
.cases-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
    text-align: center;
}

.cases-cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cases-cta p {
    color: #cbd5e0;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 资源中心页面样式 ===== */

/* 资源分类 */
.resources-categories {
    background: #f8f9fa;
    padding: 2rem 0;
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.category-tab {
    padding: 0.6rem 1.2rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-weight: 500;
    color: #4a5568;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-tab:hover,
.category-tab.active {
    background: #007bff;
    color: white;
    border-color: #007bff;
}

/* 资源区块 */
.resources-section {
    padding: 80px 0;
}

.resources-section:nth-child(even) {
    background: #f8f9fa;
}

/* 白皮书卡片 */
.whitepapers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.whitepaper-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    position: relative;
}

.whitepaper-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #ff7e5f, #feb47b);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 1;
}

.whitepaper-content {
    padding: 2rem;
}

.whitepaper-content h3 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.whitepaper-description {
    color: #718096;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.whitepaper-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #a0aec0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.meta-item i {
    color: #007bff;
}

.download-form {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 1.5rem;
}

.download-form .form-group {
    margin-bottom: 1rem;
}

.download-form input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.9rem;
}

.download-form input:focus {
    outline: none;
    border-color: #007bff;
}

/* 博客卡片 */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.blog-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-image {
    height: 200px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.blog-category {
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-weight: 600;
}

.blog-date {
    color: #a0aec0;
}

.blog-content h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.blog-excerpt {
    color: #718096;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.blog-link {
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.blog-link:hover {
    gap: 1rem;
}

.blog-more {
    text-align: center;
    margin-top: 3rem;
}

/* 工具卡片 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
}

.tool-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 1.5rem;
}

.tool-content h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.tool-description {
    color: #718096;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.tool-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
    color: #a0aec0;
}

/* 网络研讨会卡片 */
.webinar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.webinar-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.webinar-header {
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.date-day {
    font-size: 2rem;
    font-weight: 700;
}

.date-month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.date-year {
    font-size: 0.8rem;
    opacity: 0.8;
}

.webinar-time {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.webinar-video {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #1a365d, #2d3748);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-thumbnail {
    color: white;
    font-size: 4rem;
    cursor: pointer;
}

.video-duration {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.webinar-badge {
    display: inline-block;
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.webinar-content {
    padding: 1.5rem;
}

.webinar-content h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.webinar-description {
    color: #718096;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.webinar-speaker {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #4a5568;
}

.webinar-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
    color: #a0aec0;
}

/* 订阅表单 */
.resources-subscribe {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
}

.resources-subscribe h2 {
    color: white;
}

.resources-subscribe p {
    color: #cbd5e0;
    margin-bottom: 2rem;
}

.subscribe-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.subscribe-benefits {
    list-style: none;
    padding: 0;
}

.subscribe-benefits li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.subscribe-benefits i {
    color: #48bb78;
}

.subscribe-form input,
.subscribe-form select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.subscribe-form input:focus,
.subscribe-form select:focus {
    outline: none;
    border-color: #007bff;
}

.form-note {
    font-size: 0.8rem;
    color: #a0aec0;
    margin-top: 0.5rem;
    text-align: center;
}

.form-note a {
    color: #007bff;
    text-decoration: none;
}

/* ===== 关于我们页面样式 ===== */

/* 公司介绍 */
.about-intro {
    padding: 80px 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-mission {
    font-size: 1.5rem;
    color: #007bff;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #718096;
    font-size: 0.9rem;
}

.intro-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #007bff;
    font-size: 8rem;
}

/* 价值观 */
.about-values {
    padding: 80px 0;
    background: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.value-item:hover {
    transform: translateY(-5px);
}

.value-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 1.5rem;
}

.value-item h3 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.value-item p {
    color: #718096;
    line-height: 1.5;
}

/* 发展历程 */
.about-timeline {
    padding: 80px 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 3rem auto 0;
}

.timeline:before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
}

.timeline-item {
    display: flex;
    margin-bottom: 2.5rem;
    position: relative;
}

.timeline-year {
    width: 100px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #007bff;
    text-align: right;
    padding-right: 2rem;
}

.timeline-content {
    flex: 1;
    padding-left: 2rem;
    position: relative;
}

.timeline-content:before {
    content: '';
    position: absolute;
    left: -6px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: white;
    border: 4px solid #007bff;
    border-radius: 50%;
}

.timeline-content h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #718096;
    line-height: 1.6;
}

/* 团队成员 */
.about-team {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.member-photo {
    height: 200px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-placeholder {
    width: 150px;
    height: 150px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #007bff;
    font-size: 4rem;
    border: 4px solid #007bff;
}

.member-info {
    padding: 2rem;
}

.member-info h3 {
    color: #2d3748;
    margin-bottom: 0.3rem;
}

.member-title {
    color: #007bff;
    font-weight: 600;
    margin-bottom: 1rem;
}

.member-bio {
    color: #718096;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.member-expertise {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.expertise-tag {
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 合作伙伴 */
.about-partners {
    padding: 80px 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.partner-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: #007bff;
    font-size: 2rem;
}

.partner-card h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.partner-card p {
    color: #718096;
    font-size: 0.9rem;
}

/* 认证资质 */
.about-certifications {
    padding: 80px 0;
    background: #f8f9fa;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.cert-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.cert-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 1.5rem;
}

.cert-card h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.cert-card p {
    color: #718096;
    font-size: 0.9rem;
}

/* 加入我们 */
.about-join {
    padding: 80px 0;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    text-align: center;
}

.about-join h2 {
    color: white;
    margin-bottom: 1rem;
}

.about-join p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.join-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 联系我们页面样式 ===== */

/* 联系信息卡片 */
.contact-info {
    padding: 80px 0;
    background: #f8f9fa;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.info-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 1.5rem;
}

.info-card h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.info-detail {
    color: #007bff;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-description {
    color: #718096;
    font-size: 0.9rem;
}

/* 联系表单 */
.contact-form-section {
    padding: 80px 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.form-header {
    padding: 2rem;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
    text-align: center;
}

.form-header h2 {
    color: white;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: rgba(255, 255, 255, 0.9);
}

.contact-form {
    padding: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2d3748;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

.solution-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
}

.form-submit {
    text-align: center;
    margin-top: 2rem;
}

/* 预约演示 */
.demo-booking {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.booking-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.booking-info h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.booking-info p {
    color: #718096;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.booking-features {
    list-style: none;
    padding: 0;
}

.booking-features li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #4a5568;
}

.booking-features i {
    color: #48bb78;
}

.booking-calendar {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.calendar-placeholder {
    text-align: center;
    color: #718096;
}

.calendar-placeholder i {
    font-size: 3rem;
    color: #007bff;
    margin-bottom: 1rem;
}

/* 地图区域 */
.contact-map {
    padding: 80px 0;
}

.map-address {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 16px;
    margin-top: 2rem;
}

.map-address h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: #2d3748;
}

.map-address p {
    color: #4a5568;
    margin-bottom: 1.5rem;
}

.address-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.detail-item {
    color: #718096;
}

.detail-item strong {
    color: #2d3748;
}

/* 联系渠道 */
.contact-channels {
    padding: 80px 0;
    background: #f8f9fa;
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.channel-card {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.channel-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 1.5rem;
}

.channel-card h3 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.channel-card p {
    color: #718096;
    margin-bottom: 1.5rem;
}

.qr-code-small {
    width: 150px;
    height: 150px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin: 1rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    color: #007bff;
    font-size: 3rem;
}

.subscribe-form-small {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.subscribe-form-small input {
    flex: 1;
    padding: 0.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
}

.subscribe-form-small button {
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    width: 40px;
    cursor: pointer;
}

/* 常见问题 */
.app-faq,
.contact-faq {
    padding: 80px 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 3rem auto 0;
}

.faq-item {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    background: #f8f9fa;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #edf2f7;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 1000px;
}

/* 成功提交模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

.success-icon {
    text-align: center;
    margin-bottom: 1.5rem;
}

.success-icon i {
    font-size: 4rem;
    color: #48bb78;
}

.modal-body {
    padding: 2rem;
    text-align: center;
}

.modal-body h4 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.modal-body p {
    color: #718096;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.modal-body a {
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
}

/* ===== APP下载页面样式 ===== */

/* APP Hero 区域 */
.app-hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    color: white;
    overflow: hidden;
}

.app-hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.app-badge {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.badge-new {
    background: linear-gradient(135deg, #ff7e5f, #feb47b);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-version {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.app-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: white;
}

.app-tagline {
    font-size: 1.5rem;
    color: #cbd5e0;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.app-description {
    font-size: 1.1rem;
    color: #a0aec0;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.download-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #cbd5e0;
}

.stat-item i {
    color: #48bb78;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
    max-width: 400px;
}

.download-btn {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.download-btn i {
    font-size: 2rem;
    margin-right: 1rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-label {
    font-weight: 600;
    font-size: 1rem;
}

.btn-sub {
    font-size: 0.8rem;
    opacity: 0.8;
}

.ios-btn {
    background: linear-gradient(135deg, #000000, #333333);
    color: white;
    border-color: #666;
}

.android-btn {
    background: linear-gradient(135deg, #3ddc84, #0f9d58);
    color: white;
    border-color: #0f9d58;
}

.apk-btn {
    background: linear-gradient(135deg, #32de84, #3cb371);
    color: white;
    border-color: #32de84;
}

.qr-code-section {
    margin-top: 2rem;
}

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

.qr-code {
    width: 150px;
    height: 150px;
    background: white;
    margin: 0 auto 1rem;
    padding: 10px;
    border-radius: 8px;
}

/* 手机模拟器 */
.app-hero-preview {
    position: relative;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    margin: 0 auto;
}

.phone-screen {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 580px;
    background: #1a1a1a;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 8px solid #333;
}

.app-screen {
    display: none;
    height: 100%;
    background: linear-gradient(180deg, #0f2027, #203a43, #2c5364);
}

.app-screen.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.app-header {
    padding: 20px 15px;
    display: flex;
    justify-content: space-between;
    color: white;
    font-size: 0.9rem;
}

.app-content {
    padding: 0 15px;
}

.dashboard-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.metric-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.alert-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.alert-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: white;
    border-left: 4px solid;
}

.alert-item.critical {
    border-left-color: #ff4757;
    background: rgba(255, 71, 87, 0.1);
}

.alert-item.warning {
    border-left-color: #ffa502;
    background: rgba(255, 165, 2, 0.1);
}

/* APP功能特性 */
.app-features {
    padding: 80px 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 16px;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 1.8rem;
}

/* 平台支持 */
.platform-support {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.platform {
    text-align: center;
    padding: 2.5rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.platform i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #007bff;
}

.platform h3 {
    margin-bottom: 0.5rem;
}

.platform p {
    color: #718096;
    margin-bottom: 0.5rem;
}

.platform-version {
    font-size: 0.9rem;
    color: #a0aec0;
}

/* 技术支持 */
.app-support {
    padding: 80px 0;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    text-align: center;
}

.app-support h2 {
    color: white;
}

.app-support p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.support-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.support-buttons .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.support-buttons .btn-secondary:hover {
    background: white;
    color: #007bff;
}

/* 用户评价 */
.app-testimonials {
    padding: 80px 0;
    background: #f8f9fa;
}

.testimonial-slider {
    overflow: hidden;
    position: relative;
}

.testimonial-cards {
    display: flex;
    transition: transform 0.5s ease;
    gap: 2rem;
}

.testimonial-card {
    min-width: 300px;
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.testimonial-rating {
    color: #ffc107;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

/* 版本更新日志 */
.app-changelog {
    padding: 80px 0;
    background: white;
}

.changelog-timeline {
    max-width: 800px;
    margin: 3rem auto 0;
}

.version-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.version-card:hover {
    background: #edf2f7;
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.version-header h3 {
    margin: 0;
}

.version-date {
    color: #718096;
    font-size: 0.9rem;
    margin-left: 1rem;
}

.version-tag {
    background: #e2e8f0;
    color: #4a5568;
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.version-content h4 {
    color: #2d3748;
    margin: 1.5rem 0 0.5rem;
}

.version-content ul {
    padding-left: 1.5rem;
    color: #4a5568;
}

.version-content li {
    margin-bottom: 0.5rem;
}

/* ===== 页脚 ===== */
.footer {
    background: #1a365d;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-description {
    color: #cbd5e0;
    line-height: 1.6;
}

.app-store-badges {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.store-badge {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.store-badge:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.store-badge i {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.store-badge div {
    display: flex;
    flex-direction: column;
}

.store-badge span {
    font-size: 0.9rem;
    font-weight: 600;
}

.store-badge small {
    font-size: 0.7rem;
    opacity: 0.8;
}

.footer-col h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #cbd5e0;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: #2d3748;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #007bff;
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-copyright {
    color: #cbd5e0;
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: white;
}

.version-info {
    font-size: 0.8rem;
    color: #a0aec0;
    margin-top: 0.5rem;
}

/* ===== 聊天机器人 ===== */
.chatbot-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007bff, #00c6ff);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
    transition: all 0.3s ease;
}

.chatbot-toggle:hover {
    transform: scale(1.1);
}

.chatbot-container {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    display: none;
    overflow: hidden;
}

.chatbot-container.active {
    display: block;
    animation: slideIn 0.3s ease;
}

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

.chatbot-header {
    background: linear-gradient(135deg, #007bff, #00c6ff);
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.chatbot-close:hover {
    opacity: 1;
}

.chatbot-body {
    height: 400px;
    padding: 1.5rem;
    overflow-y: auto;
    background: #f8f9fa;
}

.chatbot-message {
    margin-bottom: 1rem;
    max-width: 80%;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chatbot-message.bot {
    background: white;
    align-self: flex-start;
    border: 1px solid #e2e8f0;
}

.chatbot-message.user {
    background: #007bff;
    color: white;
    margin-left: auto;
}

.chatbot-input {
    display: flex;
    padding: 1rem;
    background: white;
    border-top: 1px solid #e2e8f0;
}

.chatbot-input input {
    flex: 1;
    padding: 10px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.chatbot-input input:focus {
    border-color: #007bff;
}

.chatbot-input button {
    background: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    width: 40px;
    margin-left: 10px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.chatbot-input button:hover {
    background: #0056b3;
}

/* ===== 动画效果 ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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