/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #ffffff;
    color: #333333;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
    overflow: hidden; /* 初始隐藏页面内容，防止加载时闪烁 */
}

/* 页面加载动画 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-content {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.loader-content .logo-image {
    width: 120px;
    height: auto;
    margin-bottom: 30px;
    animation: pulse 2s ease-in-out infinite;
}

.loader-content h2 {
    font-size: 4rem;
    font-weight: 800;
    color: #159b9b;
    margin-bottom: 30px;
    animation: pulse 2s ease-in-out infinite;
}

.loader-spinner {
    width: 80px;
    height: 80px;
    border: 4px solid rgba(21, 155, 155, 0.2);
    border-left: 4px solid #159b9b;
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
    margin: 0 auto 30px;
}

.loader-content p {
    font-size: 1.2rem;
    color: #7f8c8d;
    font-weight: 500;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

/* 字体和间距优化 */
h1 {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
}

h2 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
}

h3 {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.3;
}

h4 {
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.4;
}

p {
    font-size: 1.1rem;
    line-height: 1.7;
}

/* 间距优化 */
section {
    padding: 140px 0;
}

.section-header {
    margin-bottom: 80px;
    text-align: center;
}

.section-header h2 {
    margin-bottom: 25px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #159b9b;
    border-radius: 2px;
}

/* 卡片和容器尺寸优化 */
.service-card,
.traffic-card,
.strategy-card,
.client-category {
    padding: 60px;
    border-radius: 20px;
    background: white;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.service-card:hover,
.strategy-card:hover,
.client-category:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}

/* 按钮尺寸优化 */
.btn-primary {
    padding: 18px 45px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

/* 导航栏高度优化 */
.navbar-content {
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo .navbar-logo {
    width: 45px;
    height: auto;
}

.logo-subtitle {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* 表单元素优化 */
.form-group input,
.form-group textarea {
    padding: 20px;
    font-size: 1.1rem;
    border: 2px solid #f0f0f0;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #159b9b;
    box-shadow: 0 0 0 3px rgba(21, 155, 155, 0.1);
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled .navbar-content {
    padding: 20px 0;
}

.logo h1 {
    font-size: 2.8rem;
    color: #159b9b;
    margin-bottom: 5px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.navbar.scrolled .logo h1 {
    font-size: 2.4rem;
}

.logo-subtitle {
    font-size: 1rem;
    color: #7f8c8d;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-weight: 500;
}

.navbar.scrolled .logo-subtitle {
    font-size: 0.9rem;
}

/* 语言选择器样式 */
.language-selector {
    display: flex;
    gap: 10px;
    margin-right: 20px;
}

.lang-btn {
    padding: 10px 20px;
    border: 1px solid #159b9b;
    border-radius: 30px;
    background-color: transparent;
    color: #159b9b;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.lang-btn:hover {
    background-color: rgba(21, 155, 155, 0.1);
    transform: translateY(-2px);
}

.lang-btn.active {
    background-color: #159b9b;
    color: white;
    box-shadow: 0 5px 15px rgba(21, 155, 155, 0.3);
}

/* 响应式语言选择器 */
@media (max-width: 768px) {
    .language-selector {
        position: absolute;
        top: 100px;
        right: 20px;
        z-index: 1000;
        background-color: white;
        padding: 10px;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    }
}

/* 导航链接样式 */
.nav-links {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-links a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 10px 0;
}

.nav-links a:hover {
    color: #159b9b;
    transform: translateY(-2px);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #159b9b;
    transition: width 0.3s ease;
}

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

.nav-links a span {
    display: block;
}

.nav-links a span.en {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-top: 2px;
}

.mobile-menu {
    display: none;
    font-size: 1.8rem;
    color: #34495e;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu:hover {
    color: #159b9b;
    transform: rotate(90deg);
}

/* 表单占位符样式 */
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #999;
    font-style: italic;
}

/* 确保所有双语内容的正确显示 */
.zh,
.en {
    transition: display 0.3s ease;
}

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

.nav-links a {
    text-decoration: none;
    color: #34495e;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #159b9b;
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    color: #34495e;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: #ffffff;
    padding: 200px 0 150px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* 英雄区域背景 */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(21, 155, 155, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 30%, rgba(21, 155, 155, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(21, 155, 155, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(21, 155, 155, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.1;
    animation: float 20s ease-in-out infinite;
}

/* 英雄区域装饰元素 */
.hero-decor {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.hero-decor::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(21, 155, 155, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite;
}

.hero-decor::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(21, 155, 155, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 18s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(1deg);
    }
}

/* 英雄区域内容 */
.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
    width: 100%;
}

/* 英雄区域文本 */
.hero-text {
    max-width: 850px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 6.5rem;
    font-weight: 800;
    color: #159b9b;
    margin-bottom: 30px;
    line-height: 1.1;
    animation: fadeInUp 1s ease-out;
    letter-spacing: -2px;
}

.hero-logo-image {
    width: 200px;
    height: auto;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 2.2rem;
    color: #34495e;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease-out 0.2s both;
    font-weight: 600;
}

.hero-subtitle span {
    display: block;
}

.hero-subtitle span.en {
    font-size: 2rem;
    margin-top: 15px;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.3rem;
    color: #7f8c8d;
    margin-bottom: 60px;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s both;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-description span {
    display: block;
}

.hero-description span.en {
    font-size: 1.2rem;
    margin-top: 15px;
    opacity: 0.9;
}

/* 英雄区域按钮 */
.hero-buttons {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-btn {
    padding: 22px 55px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.btn-primary.hero-btn {
    background: #159b9b;
    color: white;
    border: none;
    padding: 22px 55px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 15px 35px rgba(21, 155, 155, 0.3);
    text-decoration: none;
    cursor: pointer;
}

.btn-primary.hero-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-primary.hero-btn:hover {
    transform: translateY(-10px) scale(1.08);
    box-shadow: 0 25px 50px rgba(21, 155, 155, 0.4);
    background: #128a8a;
}

.btn-primary.hero-btn:hover::before {
    left: 100%;
}

.btn-primary.hero-btn:hover i {
    transform: translateX(12px) scale(1.3);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.95);
    color: #159b9b;
    border: 3px solid #159b9b;
    padding: 20px 52px;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    cursor: pointer;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(21, 155, 155, 0.3), transparent);
    transition: left 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-secondary:hover {
    background: #159b9b;
    color: white;
    transform: translateY(-10px) scale(1.08);
    box-shadow: 0 25px 50px rgba(21, 155, 155, 0.4);
    border-color: #159b9b;
}

.btn-secondary:hover::before {
    left: 100%;
}

.btn-secondary:hover i {
    transform: translateX(12px) scale(1.3);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 英雄区域视觉元素 */
.hero-visual {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-shape {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 300px;
    background: rgba(21, 155, 155, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.7;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.9;
    }
}

/* 英雄区域统计数据 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-stat-item {
    text-align: center;
    padding: 30px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hero-stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #159b9b;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.hero-stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.hero-stat-item:hover::before {
    transform: scaleX(1);
}

.hero-stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: #159b9b;
    margin-bottom: 10px;
}

.hero-stat-label {
    display: block;
    font-size: 1rem;
    color: #7f8c8d;
}

.hero-stat-label span {
    display: block;
}

.hero-stat-label span.en {
    font-size: 0.9rem;
    margin-top: 5px;
}

/* 英雄区域滚动指示器 */
.hero-scroll {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #7f8c8d;
    transition: all 0.3s ease;
    cursor: pointer;
}

.scroll-link:hover {
    color: #159b9b;
    transform: translateY(5px);
}

.scroll-text {
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.scroll-text span {
    display: block;
}

.scroll-icon {
    font-size: 1.2rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(1deg);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 滚动动画类 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fade-in-down {
    opacity: 0;
    transform: translateY(-30px);
    transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 滚动时触发动画 */
.fade-in-up.animate {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left.animate {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right.animate {
    opacity: 1;
    transform: translateX(0);
}

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

/* 渐变背景动画 */
.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #159b9b;
    color: white;
    padding: 16px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px rgba(21, 155, 155, 0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn-primary:hover {
    background: #128a8a;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(21, 155, 155, 0.3);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover i {
    transform: translateX(8px);
    transition: transform 0.4s ease;
}

/* 通用部分样式 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 100%;
    padding: 0 20px;
}

.section-header h2 {
    font-size: 2.2rem;
    color: #159b9b;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: #159b9b;
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: #7f8c8d;
    margin-top: 30px;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #34495e;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 核心代理历程 */
.history {
    padding: 120px 0;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.history::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(21, 155, 155, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(50%, -50%);
}

.history::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(21, 155, 155, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, 50%);
}

.timeline {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    padding: 60px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 时间线 */
.timeline-line {
    position: relative;
    width: 100%;
    height: 3px;
    background: #159b9b;
    z-index: 1;
    margin: 30px 0;
}

/* 时间线项目 */
.timeline-item {
    position: absolute;
    top: 60px;
    text-align: center;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    width: 20%;
}

.timeline-item:nth-child(2) {
    left: 0%;
    transition-delay: 0.1s;
}

.timeline-item:nth-child(3) {
    left: 20%;
    transition-delay: 0.2s;
}

.timeline-item:nth-child(4) {
    left: 40%;
    transition-delay: 0.3s;
}

.timeline-item:nth-child(5) {
    left: 60%;
    transition-delay: 0.4s;
}

.timeline-item:nth-child(6) {
    left: 80%;
    transition-delay: 0.5s;
}

/* 滚动时显示 */
.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 年份 */
.timeline-year {
    font-size: 1.2rem;
    font-weight: bold;
    color: #159b9b;
    margin-bottom: 15px;
    position: relative;
    transition: all 0.3s ease;
}

/* 时间点 */
.timeline-dot {
    position: absolute;
    top: -35px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background-color: #159b9b;
    border-radius: 50%;
    z-index: 3;
}

/* 当前时间点 */
.timeline-dot-active {
    width: 18px;
    height: 18px;
    background-color: #159b9b;
}

/* 品牌名称 */
.timeline-brand {
    font-size: 1.1rem;
    color: #333333;
    font-weight: 500;
    margin-top: 15px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .timeline {
        padding: 30px 0;
    }
    
    .timeline-item {
        width: 20%;
    }
    
    .timeline-year {
        font-size: 0.8rem;
    }
    
    .timeline-brand {
        font-size: 0.7rem;
    }
    
    .timeline-dot {
        width: 10px;
        height: 10px;
    }
    
    .timeline-dot-active {
        width: 12px;
        height: 12px;
    }
}



/* 服务体系 */
.services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.services-content {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.service-card {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    flex: 1;
    max-width: 500px;
    text-align: center;
}

.service-card h3 {
    font-size: 1.8rem;
    color: #159b9b;
    margin-bottom: 20px;
}

.service-card p {
    color: #34495e;
    margin-bottom: 30px;
}

.service-card ul {
    list-style: none;
    text-align: left;
}

.service-card ul li {
    margin-bottom: 15px;
    color: #34495e;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card ul li i {
    color: #159b9b;
}

/* 客户案例 */
.clients {
    padding: 100px 0;
    background-color: #ffffff;
}

.clients-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.client-category {
    background-color: rgba(26, 188, 156, 0.05);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.client-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.client-category h3 {
    font-size: 1.2rem;
    color: #159b9b;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(21, 155, 155, 0.2);
}

.client-category p {
    color: #7f8c8d;
    margin-bottom: 25px;
    font-size: 0.9rem;
}

.client-logos {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.client-logo {
    background-color: #ffffff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.client-logo img {
    max-width: 100%;
    max-height: 40px;
    object-fit: contain;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.5rem;
    color: #159b9b;
    margin-bottom: 30px;
}

.contact-info ul {
    list-style: none;
}

.contact-info ul li {
    margin-bottom: 20px;
    color: #34495e;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-info ul li i {
    color: #159b9b;
    margin-top: 5px;
}

.contact-form {
    flex: 1;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e1e4e8;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #159b9b;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 流量矩阵 */
.traffic {
    padding: 120px 0;
    background-color: #ffffff;
}

/* 大气流量矩阵容器 */
.traffic-matrix-grand {
    background: #f8f9fa;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 0;
}

/* 总览数据区域 */
.matrix-overview {
    background-color: #ffffff;
    padding: 60px;
    border-bottom: 1px solid rgba(21, 155, 155, 0.1);
}

/* 总览统计数据网格 */
.overview-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    justify-content: center;
}

/* 单个总览统计项 */
.overview-stat {
    text-align: center;
    padding: 30px;
    background-color: rgba(21, 155, 155, 0.05);
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.overview-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #159b9b;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.overview-stat:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(21, 155, 155, 0.15);
    background-color: rgba(21, 155, 155, 0.08);
}

.overview-stat:hover::before {
    transform: scaleX(1);
}

/* 总览大数字样式 */
.overview-number {
    font-size: 3.5rem;
    font-weight: bold;
    color: #159b9b;
    margin-bottom: 15px;
    line-height: 1.1;
}

.overview-stat p {
    margin: 0;
    font-size: 1.1rem;
    color: #34495e;
}

/* 品牌卡片容器 */
.brand-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    padding: 60px;
}

/* 单个品牌卡片 */
.brand-card {
    background-color: #ffffff;
    border-radius: 25px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.brand-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

/* 品牌卡片头部 */
.brand-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 35px;
    border-bottom: 1px solid rgba(21, 155, 155, 0.1);
    background-color: rgba(21, 155, 155, 0.02);
}

/* 品牌Logo样式 */
.brand-logo img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.brand-card:hover .brand-logo img {
    transform: scale(1.1) rotate(5deg);
}

.brand-header h3 {
    font-size: 1.5rem;
    color: #34495e;
    margin: 0;
}

/* 品牌统计数据样式 */
.brand-stats {
    padding: 40px;
}

/* 主统计数据 */
.brand-stats .main-stat {
    margin-bottom: 40px;
    background: rgba(21, 155, 155, 0.05);
    border: 1px solid rgba(21, 155, 155, 0.1);
}

/* 统计数据行样式 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 25px;
}

/* 小型统计项样式 */
.mini-stat {
    text-align: center;
    padding: 25px;
    background-color: rgba(21, 155, 155, 0.03);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.mini-stat:hover {
    background-color: rgba(21, 155, 155, 0.08);
    transform: translateY(-5px);
}

.mini-stat i {
    font-size: 1.8rem;
    color: #159b9b;
    margin-bottom: 15px;
    display: block;
}

.mini-stat p {
    margin: 0 0 10px 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: #34495e;
}

/* 统计标签样式 */
.stat-label {
    font-size: 0.9rem !important;
    color: #7f8c8d !important;
    font-weight: normal !important;
    margin: 0 !important;
}

/* 品牌特定样式 */
.brand-card.brand-oppo .brand-header {
    background-color: rgba(37, 211, 102, 0.05);
}

.brand-card.brand-oppo .main-stat {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.05), rgba(29, 185, 84, 0.05));
    border-color: rgba(37, 211, 102, 0.1);
}

.brand-card.brand-oppo .mini-stat:hover {
    background-color: rgba(37, 211, 102, 0.08);
}

.brand-card.brand-oppo .mini-stat i {
    color: #25d366;
}

.brand-card.brand-vivo .brand-header {
    background-color: rgba(0, 120, 215, 0.05);
}

.brand-card.brand-vivo .main-stat {
    background: linear-gradient(135deg, rgba(0, 120, 215, 0.05), rgba(0, 105, 189, 0.05));
    border-color: rgba(0, 120, 215, 0.1);
}

.brand-card.brand-vivo .mini-stat:hover {
    background-color: rgba(0, 120, 215, 0.08);
}

.brand-card.brand-vivo .mini-stat i {
    color: #0078d7;
}

.brand-card.brand-xiaomi .brand-header {
    background-color: rgba(255, 103, 0, 0.05);
}

.brand-card.brand-xiaomi .main-stat {
    background: linear-gradient(135deg, rgba(255, 103, 0, 0.05), rgba(230, 92, 0, 0.05));
    border-color: rgba(255, 103, 0, 0.1);
}

.brand-card.brand-xiaomi .mini-stat:hover {
    background-color: rgba(255, 103, 0, 0.08);
}

.brand-card.brand-xiaomi .mini-stat i {
    color: #ff6700;
}

/* 品牌卡片按钮 */
.brand-card .btn-primary {
    margin-top: 30px;
    width: 100%;
    text-align: center;
    font-size: 1.1rem;
    padding: 18px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.brand-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(21, 155, 155, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .matrix-overview {
        padding: 40px;
    }

    .overview-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }

    .overview-number {
        font-size: 2.5rem;
    }

    .brand-cards {
        grid-template-columns: 1fr;
        padding: 40px;
        gap: 30px;
    }

    .brand-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
        padding: 30px;
    }

    .brand-stats {
        padding: 30px;
    }

    .stats-row {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 15px;
    }

    .mini-stat {
        padding: 20px;
    }

    .mini-stat i {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }

    .mini-stat p {
        font-size: 1rem;
    }

    .stat-label {
        font-size: 0.8rem !important;
    }
}

@media (max-width: 480px) {
    .matrix-overview {
        padding: 30px;
    }

    .overview-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .overview-number {
        font-size: 2rem;
    }

    .brand-cards {
        padding: 30px;
        gap: 20px;
    }

    .brand-header {
        padding: 25px;
    }

    .brand-logo img {
        width: 60px;
        height: 60px;
    }

    .brand-header h3 {
        font-size: 1.3rem;
    }

    .brand-stats {
        padding: 25px;
    }

    .brand-stats .main-stat {
        padding: 30px;
    }

    .main-stat .big-number {
        font-size: 2.5rem;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .mini-stat {
        padding: 15px;
    }
}

/* 增大按钮效果 */
.btn-primary {
    padding: 18px 45px;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(26, 188, 156, 0.4);
}

/* 增大服务卡片效果 */
.service-card {
    padding: 60px;
    border-radius: 20px;
    transition: all 0.4s ease;
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

/* 增大客户案例卡片效果 */
.client-category {
    padding: 55px;
    border-radius: 20px;
    transition: all 0.4s ease;
}

.client-category:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* 增大市场策略卡片效果 */
.strategy-card {
    padding: 55px;
    border-radius: 20px;
    transition: all 0.4s ease;
}

.strategy-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

/* 流量详情模态框 */
.traffic-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.traffic-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: #ffffff;
    border-radius: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.traffic-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px;
    border-bottom: 1px solid #e1e4e8;
}

.modal-header h3 {
    font-size: 1.8rem;
    color: #159b9b;
    margin: 0;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #7f8c8d;
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-modal:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: #34495e;
}

.modal-body {
    padding: 40px;
}

.modal-body h4 {
    font-size: 1.5rem;
    color: #34495e;
    margin-bottom: 25px;
}

.modal-body p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.modal-body ul {
    margin-bottom: 30px;
}

.modal-body ul li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.modal-body ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1abc9c;
    font-size: 1.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .traffic-matrix {
        border-radius: 20px;
    }

    .brand-tabs {
        padding: 10px;
    }

    .tab-btn {
        padding: 20px 10px;
    }

    .tab-icon img {
        width: 60px;
        height: 60px;
    }

    .tab-btn span {
        font-size: 1rem;
    }

    .matrix-panel {
        padding: 30px;
    }

    .panel-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .panel-header h3 {
        font-size: 1.5rem;
    }

    .main-stat .big-number {
        font-size: 2.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .stat-card {
        padding: 20px;
        gap: 20px;
    }

    .stat-card i {
        font-size: 1.5rem;
        width: 50px;
        height: 50px;
    }

    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-header,
    .modal-body {
        padding: 20px;
    }
}

/* 市场获取策略 */
.strategy {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.strategy-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.strategy-card {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.strategy-icon {
    font-size: 2.5rem;
    color: #159b9b;
    margin-bottom: 20px;
    display: inline-block;
}

.strategy-card h3 {
    font-size: 1.2rem;
    color: #159b9b;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(21, 155, 155, 0.2);
}

.strategy-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature h4 {
    color: #34495e;
    margin-bottom: 10px;
    font-size: 1rem;
}

.feature p {
    color: #7f8c8d;
    line-height: 1.6;
}

.strategy-card p {
    color: #34495e;
    line-height: 1.6;
    margin-top: 10px;
}

/* 期待合作 */
.cooperation {
    padding: 100px 0;
    background-color: #ffffff;
    text-align: center;
}

.cooperation-content h2 {
    font-size: 2rem;
    color: #159b9b;
    margin-bottom: 20px;
}

.cooperation-content p {
    font-size: 1.2rem;
    color: #34495e;
    margin-bottom: 50px;
}

.cooperation-info {
    display: flex;
    justify-content: center;
    gap: 80px;
}

.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.info-item i {
    font-size: 2rem;
    color: #159b9b;
}

.info-item h3 {
    font-size: 1.1rem;
    color: #34495e;
}

.info-item p {
    color: #7f8c8d;
    margin: 0;
}

/* 页脚 */
.footer {
    background-color: #34495e;
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h3 {
    font-size: 1.8rem;
    color: #159b9b;
    margin-bottom: 15px;
}

.footer-logo p {
    color: #bdc3c7;
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #ffffff;
}

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

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

.footer-links ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #159b9b;
}

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

.footer-contact ul li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #bdc3c7;
}

.footer-contact ul li i {
    color: #159b9b;
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid #7f8c8d;
    padding-top: 30px;
    text-align: center;
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }

    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 1.8rem;
    }

    .section {
        padding: 100px 0;
    }

    .service-card,
    .strategy-card,
    .client-category {
        padding: 45px;
    }
}

@media (max-width: 992px) {
    .navbar-content {
        padding: 20px 0;
    }

    .logo h1 {
        font-size: 2.2rem;
    }

    .logo .navbar-logo {
        width: 60px;
    }

    .nav-links {
        gap: 20px;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .hero-title {
        font-size: 5rem;
    }

    .hero-subtitle {
        font-size: 1.8rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .overview-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .brand-cards {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 14px;
    }

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

    .logo .navbar-logo {
        width: 50px;
    }

    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        z-index: 999;
        gap: 20px;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: 10px 0;
    }

    .mobile-menu {
        display: block;
        font-size: 1.8rem;
        cursor: pointer;
    }

    .language-selector {
        margin-right: 10px;
    }

    .lang-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .hero {
        padding: 180px 0 120px;
    }

    .hero-title {
        font-size: 4rem;
        letter-spacing: -1px;
    }

    .hero-subtitle {
        font-size: 1.6rem;
    }

    .hero-description {
        font-size: 1rem;
        max-width: 90%;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .hero-btn {
        width: 250px;
        justify-content: center;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .section {
        padding: 80px 0;
    }

    .section-header {
        margin-bottom: 60px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .service-card,
    .strategy-card,
    .client-category {
        padding: 40px;
    }

    .services-content {
        flex-direction: column;
        align-items: center;
    }

    .service-card {
        max-width: 100%;
        margin-bottom: 30px;
    }

    .overview-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .brand-cards {
        grid-template-columns: 1fr;
        padding: 40px;
        gap: 25px;
    }

    .brand-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    .brand-stats {
        padding: 30px;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

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

    .clients-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .contact-content {
        flex-direction: column;
        gap: 40px;
    }

    .contact-info,
    .contact-form {
        width: 100%;
    }

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

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .logo h1 {
        font-size: 1.8rem;
    }

    .logo-subtitle {
        font-size: 0.8rem;
    }

    .hero {
        padding: 160px 0 100px;
    }

    .hero-title {
        font-size: 3.2rem;
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .hero-subtitle span.en {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .hero-btn {
        width: 220px;
        padding: 18px 35px;
        font-size: 1rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .section-header h2::after {
        width: 60px;
        bottom: -15px;
    }

    .service-card,
    .strategy-card,
    .client-category {
        padding: 30px;
    }

    .matrix-overview {
        padding: 40px;
    }

    .overview-number {
        font-size: 2.5rem;
    }

    .brand-cards {
        padding: 30px;
    }

    .brand-logo img {
        width: 60px;
        height: 60px;
    }

    .brand-header h3 {
        font-size: 1.4rem;
    }

    .brand-stats .main-stat {
        padding: 25px;
    }

    .main-stat .big-number {
        font-size: 2.5rem;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .clients-content {
        grid-template-columns: 1fr;
    }

    .client-category {
        padding: 35px;
    }

    .contact-form {
        padding: 30px;
    }

    .form-group input,
    .form-group textarea {
        padding: 15px;
        font-size: 1rem;
    }

    .footer {
        padding: 40px 0 20px;
    }

    .footer-content {
        gap: 20px;
    }

    .footer-bottom {
        padding-top: 20px;
    }
}

@media (max-width: 400px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-btn {
        width: 200px;
        padding: 16px 30px;
        font-size: 0.9rem;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .service-card,
    .strategy-card,
    .client-category {
        padding: 25px;
    }
}