/* 基础样式和变量定义 */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #f59e0b;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gradient: linear-gradient(135deg, #2563eb, #7c3aed);
    --gradient-light: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
    overflow-x: hidden;
}

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

h1, h2, h3, h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
}

.highlight {
    color: var(--primary);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 6px;
    background-color: rgba(37, 99, 235, 0.2);
    z-index: -1;
}

/* 通用按钮样式 */
.cta-button {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.cta-button:active {
    transform: translateY(-1px);
}

/* 顶部通知栏 */
.top-bar {
    background: var(--gradient);
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
    text-align: center;
}

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

.top-bar a {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 导航栏 */
header {
    background-color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    gap: 8px;
}

.logo span {
    color: var(--secondary);
}

.logo i {
    font-size: 2rem;
}

.logo-tag {
    background: var(--gradient-light);
    color: var(--primary);
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 30px;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 0;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.nav-cta-btn {
    background: var(--gradient);
    color: white !important;
    padding: 10px 24px !important;
    border-radius: 6px;
    margin-left: 10px;
}

.nav-cta-btn:hover {
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--dark);
    cursor: pointer;
    padding: 5px;
}

/* 英雄区域 */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f0f9ff 0%, #f5f3ff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: var(--gradient);
    opacity: 0.05;
    border-radius: 50%;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 30px;
    max-width: 90%;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin: 30px 0;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}

.stat-text {
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: 5px;
}

.hero-actions {
    display: flex;
    gap: 15px;
    margin: 30px 0;
}

.primary-cta {
    background: var(--gradient);
}

.secondary-cta {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.trusted-by {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.trusted-by span {
    color: var(--gray);
    font-size: 0.9rem;
    margin-right: 15px;
}

.brands {
    display: inline-flex;
    gap: 15px;
}

.brands span {
    background: white;
    padding: 6px 15px;
    border-radius: 6px;
    font-weight: 500;
    color: var(--dark);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.hero-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.floating-element {
    position: relative;
    display: inline-block;
}

.hero-chart {
    font-size: 15rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.chart-tooltip {
    position: absolute;
    top: 30%;
    right: 10%;
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.tooltip-title {
    font-size: 0.8rem;
    color: var(--gray);
    margin-bottom: 5px;
}

.tooltip-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success);
}

/* 通用标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.section-title p {
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* AI平台介绍 */
.platform-intro {
    padding: 100px 0;
    background-color: #f8fafc;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.platform-card {
    background-color: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid transparent;
    text-align: center;
}

.platform-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.platform-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: white;
}

.baidu { background: linear-gradient(135deg, #2932e1, #5c6bc0); }
.qihu { background: linear-gradient(135deg, #00a8ff, #0097e6); }
.deepseek { background: linear-gradient(135deg, #8e44ad, #9b59b6); }
.alibaba { background: linear-gradient(135deg, #ff6b00, #ff9f43); }
.openai { background: linear-gradient(135deg, #10ac84, #1dd1a1); }
.doubao { background: linear-gradient(135deg, #00b894, #00cec9); }
.tencent { background: linear-gradient(135deg, #00a8ff, #0097e6); }
.openai-global { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }

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

.platform-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.platform-tags span {
    background: var(--gradient-light);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.platform-card p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.platform-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.platform-features span {
    font-size: 0.9rem;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.platform-features i {
    color: var(--success);
    font-size: 0.8rem;
}

.platform-cta {
    text-align: center;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    margin-top: 50px;
}

.platform-cta p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 25px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.platform-cta-btn {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* 服务部分 */
.services {
    padding: 100px 0;
    background-color: white;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.service-card.featured {
    border-color: var(--primary);
    transform: scale(1.03);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.service-icon i {
    font-size: 2.2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    margin-bottom: 25px;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-bottom: 30px;
}

.service-features li {
    color: var(--dark);
    margin-bottom: 10px;
    padding-left: 24px;
    position: relative;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

.service-price {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.period {
    color: var(--gray);
    font-size: 0.9rem;
}

/* 成功案例 */
.cases {
    padding: 100px 0;
    background-color: #f8fafc;
}

.case-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.case-tab {
    background: white;
    border: 2px solid #e2e8f0;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.case-tab.active {
    background: var(--gradient);
    color: white;
    border-color: transparent;
}

.case-content {
    display: none;
}

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

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

.case-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    max-width: 800px;
    margin: 0 auto;
}

.case-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.case-logo {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.case-info h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.case-tag {
    background: var(--gradient-light);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.case-stat {
    text-align: center;
    padding: 20px;
    background: #f8fafc;
    border-radius: 8px;
}

.stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray);
}

.case-card p {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 30px;
}

.case-platforms {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.case-platforms span:first-child {
    color: var(--gray);
    font-size: 0.9rem;
}

.platform-badge {
    background: var(--gradient-light);
    color: var(--primary);
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.more-cases {
    text-align: center;
    margin-top: 40px;
}

.view-all-cases {
    padding: 15px 40px;
}

/* GEO与传统SEO对比 */
.comparison {
    padding: 100px 0;
    background-color: white;
}

.comparison-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.comparison-circle {
    width: 300px;
    height: 300px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    position: relative;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.circle-inner {
    width: 250px;
    height: 250px;
    background: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.circle-inner span {
    display: block;
    text-align: center;
}

.circle-inner span:first-child {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
}

.circle-percent {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    margin: 10px 0;
}

.circle-inner span:last-child {
    font-size: 1rem;
    color: var(--gray);
}

.comparison-points {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.point {
    display: flex;
    gap: 20px;
}

.point-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.point-icon i {
    color: white;
    font-size: 1.3rem;
}

.point-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.point-content p {
    color: var(--gray);
    line-height: 1.6;
}

/* 服务流程 */
.process {
    padding: 100px 0;
    background-color: #f8fafc;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.process-step {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

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

.step-number {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 2rem;
    font-weight: 700;
    color: rgba(37, 99, 235, 0.1);
    line-height: 1;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.step-icon i {
    color: white;
    font-size: 2rem;
}

.process-step h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.process-step p {
    color: var(--gray);
    line-height: 1.6;
}

.process-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.timeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    margin-bottom: 10px;
}

.timeline-point {
    width: 20px;
    height: 20px;
    background: #e2e8f0;
    border-radius: 50%;
    position: relative;
    z-index: 2;
}

.timeline-point.active {
    background: var(--primary);
}

.timeline-line {
    flex-grow: 1;
    height: 2px;
    background: #e2e8f0;
}

.timeline-labels {
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
}

.timeline-labels span {
    font-size: 0.9rem;
    color: var(--gray);
}

/* CTA区域 */
.final-cta {
    padding: 100px 0;
    background: var(--gradient);
    color: white;
    text-align: center;
}

.cta-box {
    background: white;
    color: var(--dark);
    padding: 60px;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    max-width: 800px;
    margin: 0 auto;
}

.cta-box h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.cta-box p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 30px;
}

.cta-box strong {
    color: var(--primary);
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.cta-feature i {
    color: var(--success);
    font-size: 1.2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 40px 0 30px;
    flex-wrap: wrap;
}

.cta-primary {
    background: var(--gradient);
    padding: 16px 40px;
    font-size: 1.1rem;
}

.cta-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 16px 40px;
    font-size: 1.1rem;
}

.cta-note {
    font-size: 0.9rem;
    color: var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.waiting {
    color: var(--warning);
    font-weight: 600;
}

/* 页脚 */
footer {
    background-color: var(--dark);
    color: white;
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: white;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.footer-logo i {
    color: var(--primary);
}

.footer-desc {
    color: #94a3b8;
    margin-bottom: 25px;
    line-height: 1.6;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

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

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-info i {
    color: var(--primary);
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
}

.copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright p {
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

/* 浮动咨询按钮 */
.float-consult {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.float-btn {
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    animation: pulse-btn 2s infinite;
}

@keyframes pulse-btn {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.float-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.4);
}

.float-btn.phone {
    width: 60px;
    height: 60px;
    justify-content: center;
    padding: 0;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        margin-bottom: 50px;
    }
    
    .hero-text h1 {
        font-size: 2.8rem;
    }
    
    .hero-subtitle {
        max-width: 100%;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .trusted-by {
        text-align: center;
    }
    
    .brands {
        margin-top: 10px;
        justify-content: center;
    }
    
    .comparison-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .comparison-visual {
        order: 2;
    }
    
    .section-title h2 {
        font-size: 2.3rem;
    }
}

@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-text h1 {
        font-size: 2.3rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-chart {
        font-size: 10rem;
    }
    
    .service-cards {
        grid-template-columns: 1fr;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .copyright {
        flex-direction: column;
        text-align: center;
    }
    
    .float-btn span {
        display: none;
    }
    
    .float-btn {
        width: 60px;
        height: 60px;
        justify-content: center;
        padding: 0;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .platform-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-box {
        padding: 40px 20px;
    }
    
    .cta-box h2 {
        font-size: 1.8rem;
    }
    
    .float-consult {
        bottom: 20px;
        right: 20px;
    }
}