/* 基础样式 */
:root {
    --primary-color: #ff2e4d;
    --secondary-color: #f8f3f0;
    --accent-color: #ff8a9e;
    --dark-color: #333333;
    --light-color: #ffffff;
    --text-color: #2d2d2d;
    --gray-color: #888888;
    --light-gray: #f5f5f5;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --box-shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --card-radius: 12px;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

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

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

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

ul {
    list-style: none;
}

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

.section {
    padding: 40px 0;
    position: relative;
    overflow: hidden;
}

.bg-light {
    background-color: var(--secondary-color);
}

.bg-gradient {
    background: linear-gradient(135deg, #ff5c79, #ff2e4d);
    color: var(--light-color);
}

.bg-pattern {
    background-color: var(--secondary-color);
    background-image: radial-gradient(var(--light-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

.divider {
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 20px auto;
}

.divider.light {
    background-color: var(--light-color);
}

.section-header {
    text-align: center;
    margin-bottom: 25px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
    margin-top: 0;
    line-height: 1.3;
}

.section-header.light-text {
    color: var(--light-color);
}

.section-header.animated-header h2 {
    animation: colorChange 5s infinite alternate;
}

.section-description {
    max-width: 800px;
    margin: 20px auto;
    font-size: 1.1rem;
    color: var(--gray-color);
}

.highlight {
    color: var(--light-color);
    position: relative;
    font-weight: 900;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background-color: rgba(255, 255, 255, 0.2);
    z-index: -1;
    border-radius: 4px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.logo i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu li a {
    color: var(--dark-color);
    font-weight: 500;
    position: relative;
}

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

.nav-menu li a:hover {
    color: var(--primary-color);
}

.nav-menu li a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
}

/* 头部样式 */
.hero {
    background: linear-gradient(135deg, #ff5c79, #ff2e4d);
    color: var(--light-color);
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;charset=utf8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"%3E%3Cpolygon fill="%23ffffff" fill-opacity="0.05" points="0,100 100,0 100,100"%3E%3C/polygon%3E%3C/svg%3E');
    background-size: cover;
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
    letter-spacing: -1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.brand-name {
    display: inline-block;
    background-color: #ffffff;
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 8px;
    position: relative;
    margin-right: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    text-shadow: none;
}

.main-title {
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.hero .subtitle {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero .description {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background-color: var(--light-color);
    color: var(--primary-color);
}

.btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background-color: transparent;
    color: var(--light-color);
    border: 2px solid var(--light-color);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-large {
    padding: 18px 38px;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(255, 255, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
}

@keyframes colorChange {
    0% {
        color: var(--dark-color);
    }
    50% {
        color: var(--primary-color);
    }
    100% {
        color: var(--dark-color);
    }
}

/* 卡片样式 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
    width: 100%;
}

.card {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    box-shadow: var(--box-shadow);
    padding: 15px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
    margin-bottom: 15px;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: -1;
}

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

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    transition: var(--transition);
    display: block;
}

.card:hover .card-icon {
    transform: scale(1.1);
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.card p {
    color: var(--gray-color);
}

/* 目录样式 */
.toc-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.toc-section {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    margin-bottom: 15px;
}

.toc-section:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.toc-section h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

.toc-section ul li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.toc-section ul li:before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* 比较表格样式 */
.comparison-container {
    position: relative;
    margin-top: 30px;
}

.comparison-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    position: relative;
    z-index: 2;
}

.comparison-column {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    margin-bottom: 15px;
}

.comparison-column:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.comparison-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--primary-color);
    color: var(--light-color);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 3;
}

.comparison-header {
    padding: 20px 15px;
    background-color: var(--light-gray);
    text-align: center;
    position: relative;
}

.platform-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background-color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    display: block;
}

.platform-icon i {
    color: var(--primary-color);
}

.comparison-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.comparison-list {
    padding: 20px;
}

.comparison-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
}

.comparison-list li i {
    margin-right: 10px;
    font-size: 1.2rem;
    margin-top: 3px;
}

.comparison-list .fa-check-circle {
    color: #2ecc71;
}

.comparison-list .fa-times-circle {
    color: #e74c3c;
}

.comparison-footer {
    padding: 15px;
    text-align: center;
    border-top: 1px solid #eee;
}

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

.price {
    font-size: 1.8rem;
    font-weight: 700;
    display: block;
    margin: 5px 0;
    color: var(--dark-color);
}

.price.emphasis {
    color: var(--primary-color);
}

.comparison-footer .note {
    font-size: 0.9rem;
    color: var(--gray-color);
}

.highlighted {
    border: 2px solid var(--primary-color);
    transform: translateY(-10px);
}

.highlighted:hover {
    transform: translateY(-15px);
}

/* 特性卡片样式 */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
    width: 100%;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--card-radius);
    padding: 30px;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 15px;
}

.feature-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--light-color);
    transition: var(--transition);
    display: block;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.3);
}

.feature-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--light-color);
}

.feature-content p {
    color: rgba(255, 255, 255, 0.8);
}

/* 统计数据样式 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.stat-item {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--light-color);
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 内容预览选项卡样式 */
.content-tabs {
    margin-top: 40px;
}

.tabs-header {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    padding: 15px 25px;
    background-color: transparent;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 50px;
    color: var(--gray-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-btn i {
    font-size: 1.2rem;
}

.tab-btn:hover, .tab-btn.active {
    color: var(--primary-color);
    background-color: rgba(255, 46, 77, 0.1);
}

.tab-btn.active {
    box-shadow: 0 2px 10px rgba(255, 46, 77, 0.2);
}

.tabs-content {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.tab-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    border-left: 4px solid var(--primary-color);
    padding-left: 15px;
}

.tab-content p {
    margin-bottom: 25px;
    color: var(--gray-color);
}

/* 提示卡片样式 */
.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
    width: 100%;
}

.tips-card {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 15px;
    margin-bottom: 15px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.tips-icon {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 15px;
    display: block;
}

.tips-card h4 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
    font-weight: 700;
}

/* 处理步骤样式 */
.process-steps {
    margin: 30px 0;
}

/* 编号卡片样式 */
.numbered-card {
    display: flex;
    margin-bottom: 15px;
    background-color: #fff;
    border-radius: 10px;
    padding: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 15px;
}

.numbered-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.numbered-card .number {
    background: var(--primary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 15px;
    flex-shrink: 0;
}

.numbered-card .content {
    flex-grow: 1;
}

.numbered-card h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.numbered-card ul {
    margin: 0;
    padding-left: 20px;
}

.numbered-card li {
    margin-bottom: 5px;
}

/* 引用卡片样式 */
.quote-card {
    background-color: var(--secondary-color);
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    position: relative;
}

.quote-icon {
    position: absolute;
    top: 10px;
    left: 10px;
    color: rgba(255, 46, 77, 0.1);
    font-size: 3rem;
}

.quote-card p {
    font-style: italic;
    font-size: 1.1rem;
    margin: 0;
    color: var(--dark-color);
    position: relative;
    z-index: 1;
}

/* 警告卡片样式 */
.warning-card {
    background-color: #fff9f9;
    border: 1px solid #ffebeb;
    border-radius: var(--border-radius);
    padding: 15px;
    margin: 20px 0;
}

.warning-card h4 {
    color: #e74c3c;
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.warning-card h4 i {
    margin-right: 10px;
}

/* 行业卡片网格 */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    width: 100%;
}

/* 行业卡片样式 */
.industry-card {
    display: flex;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    margin-bottom: 15px;
    transition: var(--transition);
}

.industry-card:hover {
    transform: translateX(10px);
    box-shadow: var(--box-shadow-hover);
}

.industry-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
    display: block;
}

.industry-content {
    flex: 1;
}

.industry-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.read-more {
    display: inline-flex;
    align-items: center;
    margin-top: 10px;
    font-weight: 600;
    color: var(--primary-color);
}

.read-more i {
    margin-left: 5px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

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

.faq-item {
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    background-color: var(--light-color);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--box-shadow-hover);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--light-color);
    transition: var(--transition);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.toggle-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-question {
    background-color: var(--light-gray);
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 20px 20px;
}

.faq-item.active .toggle-icon {
    transform: rotate(45deg);
    background-color: var(--primary-color);
    color: var(--light-color);
}

/* CTA部分样式 */
.cta-section {
    background: linear-gradient(135deg, #ff8a9e, #ff2e4d);
    color: var(--light-color);
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 80px 0;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;charset=utf8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"%3E%3Cpath fill="%23ffffff" fill-opacity="0.05" d="M0,32L48,58.7C96,85,192,139,288,149.3C384,160,480,128,576,128C672,128,768,160,864,144C960,128,1056,64,1152,74.7C1248,85,1344,171,1392,213.3L1440,256L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"%3E%3C/path%3E%3C/svg%3E');
    background-size: cover;
    background-position: bottom;
    z-index: 1;
    opacity: 0.5;
}

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

.cta-content h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.animated-text {
    background: linear-gradient(90deg, #fff, #ffe6e9, #fff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shine 3s linear infinite;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.action-reasons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.reason {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 20px;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.reason:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.reason-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.5rem;
    display: block;
}

.cta-button-container {
    margin-bottom: 40px;
}

/* 倒计时样式 */
.countdown {
    max-width: 500px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--card-radius);
    padding: 20px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.countdown-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.countdown-item {
    text-align: center;
    min-width: 70px;
}

.countdown-number {
    font-size: 2rem;
    font-weight: 700;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 5px;
}

.countdown-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero .subtitle {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 30px 0;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .subtitle {
        font-size: 1.3rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .tabs-header {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 10px;
        justify-content: flex-start;
    }
    
    .tab-btn {
        white-space: nowrap;
    }
    
    .tabs-content {
        padding: 20px;
    }
    
    .industry-card {
        flex-direction: column;
    }
    
    .industry-icon {
        margin-bottom: 15px;
        margin-right: 0;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero .subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-header h2 {
        font-size: 1.6rem;
    }
    
    .numbered-card {
        flex-direction: column;
    }
    
    .numbered-card .number {
        margin-bottom: 15px;
    }
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: rgba(255, 255, 255, 0.8);
    position: relative;
}

.footer-top {
    padding: 40px 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
}

.footer-branding {
    margin-bottom: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-color);
    margin-bottom: 15px;
}

.footer-logo i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.8rem;
}

.footer-branding p {
    margin-bottom: 20px;
    line-height: 1.6;
}

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

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

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--light-color);
    transform: translateY(-5px);
}

.footer-summary h3 {
    color: var(--light-color);
    font-size: 1.4rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-summary h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-summary ul {
    margin-bottom: 20px;
}

.footer-summary ul li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 20px;
}

.footer-summary ul li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.footer-summary strong {
    color: var(--light-color);
}

.footer-quote {
    font-style: italic;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-nav h3 {
    color: var(--light-color);
    font-size: 1.4rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-nav h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-nav ul li {
    margin-bottom: 15px;
}

.footer-nav ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.footer-nav ul li a::before {
    content: '›';
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-nav ul li a:hover {
    color: var(--light-color);
    transform: translateX(5px);
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .cta-content h2 {
        font-size: 2.5rem;
    }
    
    .countdown-number {
        font-size: 1.8rem;
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 991px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero .subtitle {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-branding {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .navbar-content {
        position: relative;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--light-color);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 100;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        padding: 150px 0 100px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .subtitle {
        font-size: 1.3rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .tabs-header {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 10px;
        justify-content: flex-start;
    }
    
    .tab-btn {
        white-space: nowrap;
    }
    
    .tabs-content {
        padding: 20px;
    }
    
    .industry-card {
        flex-direction: column;
    }
    
    .industry-icon {
        margin-bottom: 15px;
        margin-right: 0;
    }
    
    .countdown-container {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-branding {
        grid-column: span 1;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero .subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 1.6rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
    
    .numbered-card {
        flex-direction: column;
    }
    
    .numbered-card .number {
        margin-bottom: 15px;
        margin-right: 0;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top:hover {
    background-color: var(--accent-color);
    transform: translateY(-5px);
}

/* 内容块样式 */
.content-block {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 25px;
    overflow: hidden;
    transition: var(--transition);
}

.content-block:hover {
    box-shadow: var(--box-shadow-hover);
}

.content-block:last-child {
    margin-bottom: 0;
}

.content-header {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--light-gray);
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.content-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
}

.content-header h3 {
    font-size: 1.6rem;
    margin: 0;
    color: var(--dark-color);
}

.content-body {
    padding: 20px;
}

.content-body h4 {
    font-size: 1.3rem;
    margin: 20px 0 10px;
    color: var(--dark-color);
    border-left: 4px solid var(--primary-color);
    padding-left: 15px;
}

.content-body p, .content-body ul, .content-body ol {
    margin-bottom: 10px;
}

.content-body ul li, .content-body ol li {
    margin-bottom: 5px;
}

.content-body ul li:last-child, .content-body ol li:last-child {
    margin-bottom: 0;
}

.content-body .process-steps,
.content-body .tips-grid,
.content-body .industry-grid {
    margin: 30px 0;
}

/* 更新响应式样式 */
@media (max-width: 768px) {
    .content-header {
        padding: 12px 15px;
    }
    
    .content-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        margin-right: 15px;
    }
    
    .content-header h3 {
        font-size: 1.3rem;
    }
    
    .content-body {
        padding: 15px;
    }
    
    .content-body h4 {
        font-size: 1.1rem;
    }
}

.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3), 
                 0 0 5px rgba(0, 0, 0, 0.2),
                 0 0 10px rgba(255, 255, 255, 0.5);
}

/* 摘要部分样式 */
.summary-content {
    max-width: 900px;
    margin: 0 auto;
}

.summary-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
    width: 100%;
}

.summary-point {
    display: flex;
    align-items: flex-start;
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    padding: 18px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    margin-bottom: 15px;
}

.summary-point:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.point-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--light-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
    display: block;
}

.point-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.point-content p {
    color: var(--gray-color);
    margin: 0;
}

.summary-quote {
    background-color: var(--light-color);
    border-radius: var(--card-radius);
    padding: 30px;
    text-align: center;
    font-style: italic;
    font-size: 1.2rem;
    color: var(--dark-color);
    box-shadow: var(--box-shadow);
    position: relative;
}

.summary-quote::before,
.summary-quote::after {
    content: '"';
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    line-height: 1;
}

.summary-quote::before {
    top: 10px;
    left: 20px;
}

.summary-quote::after {
    bottom: -10px;
    right: 20px;
}

/* 响应式更新 */
@media (max-width: 768px) {
    .summary-point {
        padding: 20px;
    }
    
    .point-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
        margin-right: 15px;
    }
    
    .point-content h3 {
        font-size: 1.1rem;
    }
    
    .summary-quote {
        padding: 20px;
        font-size: 1rem;
    }
}

/* 变现公式样式 */
.formula {
    font-size: 1.2em;
    font-weight: bold;
    text-align: center;
    padding: 10px;
    margin: 15px 0;
    background-color: rgba(255, 56, 92, 0.1);
    border-radius: 8px;
}

/* 调整响应式布局的间距 */
@media (max-width: 992px) {
    .section {
        padding: 40px 0;
    }
    
    .tips-grid, .industry-grid, .cards-grid {
        gap: 15px;
    }
}

/* 移除可能造成空白的margin */
.content-body p:last-child,
.content-body ul:last-child,
.content-body ol:last-child,
.tips-card:last-child,
.industry-card:last-child,
.numbered-card:last-child {
    margin-bottom: 0;
}

/* 调整内容区块内部间距 */
.content-block .content-body > *:first-child {
    margin-top: 0;
}

.content-block .content-body > *:last-child {
    margin-bottom: 0;
}

/* 减少引用和警告卡片的内外间距 */
.quote-card,
.warning-card {
    padding: 15px;
    margin: 20px 0;
}

/* 确保整体布局紧凑，避免空白区域 */
html, body {
    overflow-x: hidden;
}

/* 移除可能的默认边距造成的空白 */
img, 
.card-icon, 
.content-icon, 
.tips-icon, 
.platform-icon, 
.feature-icon, 
.reason-icon, 
.point-icon {
    display: block;
}

/* 改进卡片布局，消除可能的空白 */
.cards-grid,
.tips-grid,
.industry-grid,
.feature-cards,
.summary-points {
    display: grid;
    width: 100%;
}

/* 确保内容图片紧凑贴合 */
img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* 避免内部元素之间的多余空隙 */
.hero-content > * {
    margin-bottom: 10px;
}

.hero-content > *:last-child {
    margin-bottom: 0;
}

/* 区块内的内容对齐和紧凑性调整 */
.section {
    overflow: hidden;
}

.container {
    overflow: hidden;
}

/* 各级标题下方间距调整 */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    line-height: 1.3;
}

/* 图标尺寸统一调整 */
.fas, .fab, .far {
    line-height: 1;
    vertical-align: middle;
}

/* 删除所有可能的空白伪元素 */
*:empty:not(img):not(input):not(textarea):not(i):not(br):not(hr) {
    display: none;
}

/* 移动端额外优化 */
@media (max-width: 768px) {
    .section {
        padding: 25px 0;
    }
    
    .divider {
        margin: 15px auto;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .comparison-column,
    .card,
    .tips-card,
    .feature-card,
    .industry-card,
    .summary-point {
        margin-bottom: 15px;
    }
}