:root {
    --primary-dark: #0a1128;
    --primary-blue: #1565c0;
    --accent-blue: #0d47a1;
    --highlight-blue: #0c7dcf;
    --green-accent: #4caf50;
    --light-gray: #f5f9ff;
    --dark-bg: #0a0f1e;
    --card-bg: rgba(20, 30, 48, 0.8);
    --text-main: #e6f1ff;
    --text-light: #8fa3c0;
    --accent: #00ffb9;
    --gradient-start: #007cf0;
    --gradient-end: #00dfd8;
    --border-radius: 12px;
    --box-shadow: 0 10px 30px rgba(0, 40, 100, 0.2);
    --nav-height: 80px;
    --chart-blue: #00c6ff;
    --chart-green: #00ff9d;
    --chart-red: #ff4d6d;
    --chart-yellow: #ffd166;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans SC', 'Roboto', sans-serif;
}

body {
    background: linear-gradient(135deg, var(--dark-bg) 0%, #131a35 100%);
    color: var(--text-main);
    line-height: 1.8;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 20%, rgba(10, 132, 255, 0.05) 0%, transparent 30%),
        radial-gradient(circle at 90% 70%, rgba(0, 208, 255, 0.05) 0%, transparent 30%);
    z-index: -1;
}

/* 顶部导航栏 */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: flex;
    justify-content: center;
    transition: all 0.4s ease;
}

.nav-container {
    width: 100%;
    max-width: 1400px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-circle i {
    color: white;
    font-size: 22px;
}

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

.logo-main {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
}

.logo-circle .headphoto img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 10px;
    display: inline-block;
    vertical-align: middle;
}

.logo-sub {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: all 0.3s ease;
}

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

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

.nav-link:hover {
    color: var(--text-main);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    font-weight: 700;
    color: #0a0f1e;
    background: linear-gradient(90deg, var(--accent), var(--gradient-end));
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    font-size: 16px;
    border: none;
    cursor: pointer;
}

.nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 255, 202, 0.4);
}

/* 横幅区域 */
.banner {
    margin-top: var(--nav-height);
    width: 100%;
    height: 100vh;
    min-height: 800px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1611162617474-5b21e879e113?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1740&q=80') no-repeat center center;
    background-size: cover;
    opacity: 0.2;
}

.banner-content {
    position: relative;
    z-index: 5;
    max-width: 1400px;
    width: 100%;
    padding: 0 40px;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.problem-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 30px;
    background: linear-gradient(90deg, #ffffff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.problem-subtitle {
    font-size: 1.8rem;
    font-weight: 500;
    max-width: 900px;
    line-height: 1.6;
    margin-bottom: 50px;
    color: var(--text-light);
}

.value-container {
    backdrop-filter: blur(10px);
    padding: 30px 60px;
    border-radius: var(--border-radius);
    margin: 40px 0;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(100, 150, 255, 0.1);
    max-width: 1000px;
}

.value-proposition {
    font-size: 1.4rem;
    font-weight: 500;
    margin: 20px 0;
    line-height: 1.7;
    position: relative;
    z-index: 2;
}

.highlight {
    display: inline-block;
    padding: 0 15px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border-radius: 50px;
    font-weight: 600;
    margin: 0 5px;
}

.features-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
    max-width: 1000px;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 25px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    border-radius: 50px;
    border: 1px solid rgba(100, 150, 255, 0.3);
    transition: all 0.4s ease;
}

.feature-tag:hover {
    transform: translateY(-5px);
    background: rgba(0, 208, 255, 0.2);
    box-shadow: 0 5px 15px rgba(0, 208, 255, 0.3);
}

.cta-section {
    margin-top: 30px;
}

.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--gradient-end));
    color: #11172a;
    font-weight: 700;
    text-decoration: none;
    padding: 18px 50px;
    border-radius: 50px;
    font-size: 1.2rem;
    box-shadow: 0 0 25px rgba(0, 255, 202, 0.5);
    transition: all 0.4s ease;
    position: relative;
    z-index: 2;
    letter-spacing: 1px;
    border: none;
    overflow: hidden;
    cursor: pointer;
}

.cta-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 40px rgba(0, 255, 202, 0.8);
}

.cta-btn i {
    margin-right: 15px;
    font-size: 24px;
    transition: transform 0.3s ease;
}

.cta-btn:hover i {
    transform: translateX(8px);
}

/* 内容区域样式 */
.section-container {
    max-width: 1400px;
    margin: 100px auto;
    padding: 0 40px;
}

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

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #ffffff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* 关于我们区域 */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-content {
    padding: 40px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
}

.about-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

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

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 30px;
}

.stat-card {
    text-align: center;
    padding: 30px;
    background: rgba(15, 23, 42, 0.6);
    border-radius: var(--border-radius);
    border: 1px solid rgba(100, 150, 255, 0.1);
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.stat-title {
    font-size: 1.2rem;
    color: var(--text-light);
}

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

.service-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
    transition: all 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 208, 255, 0.3);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(0, 208, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: var(--accent);
}

.service-card h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 案例展示区域 */
.cases-section {
    position: relative;
    padding: 80px 0;
    overflow: hidden;
}

.cases-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1553877522-43269d4ea984?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1740&q=80') no-repeat center center;
    background-size: cover;
    opacity: 0.05;
    z-index: -1;
}

.swiper {
    width: 100%;
    padding: 50px 0;
}

.swiper-slide {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(100, 150, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    height: 450px;
    display: flex;
    flex-direction: column;
}

.swiper-slide:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.slide-img {
    height: 200px;
    overflow: hidden;
}

.slide-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.swiper-slide:hover .slide-img img {
    transform: scale(1.1);
}

.slide-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.slide-content h4 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

.slide-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    flex: 1;
}

.slide-metrics {
    display: flex;
    justify-content: space-between;
    background: rgba(15, 23, 42, 0.6);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-top: auto;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: rgba(10, 15, 30, 0.9);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(100, 150, 255, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
}

.footer-column h4 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    color: var(--text-main);
    position: relative;
    padding-bottom: 15px;
}

.footer-column h4::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent);
}

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

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

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.footer-links a i {
    margin-right: 10px;
    color: var(--accent);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-main);
}

.footer-links a:hover i {
    transform: translateX(5px);
}

.contact-info {
    color: var(--text-light);
    line-height: 2;
}

.contact-info i {
    color: var(--accent);
    margin-right: 10px;
    width: 20px;
}

.copyright {
    text-align: center;
    padding: 30px 0 0;
    color: var(--text-light);
    font-size: 0.9rem;
    border-top: 1px solid rgba(100, 150, 255, 0.1);
    margin-top: 60px;
}

/* 服务内容样式 */
.services-section {
    padding: 80px 0;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
}

.service-icon {
    min-width: 60px;
    height: 60px;
    background: rgba(0, 208, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--accent);
}

.service-text h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--text-main);
}

.service-text p {
    color: var(--text-light);
    line-height: 1.7;
}

/* 账户对比样式 */
.account-comparison {
    padding: 80px 0;
}

.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
}

.comparison-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.6rem;
    margin-bottom: 25px;
    color: var(--text-main);
}

.card-header i {
    font-size: 2rem;
    color: var(--accent);
}

.feature-list {
    list-style: none;
    margin-bottom: 25px;
}

.feature-list li {
    padding: 12px 0;
    position: relative;
    padding-left: 35px;
    border-bottom: 1px solid rgba(221, 221, 221, 0.1);
}

.feature-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-size: 18px;
}

.feature-list li:last-child {
    border-bottom: none;
}

.ad-types {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ad-type {
    background: rgba(15, 23, 42, 0.6);
    padding: 8px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
}

/* 为什么选择我们 */
.why-container {
    padding: 80px 0;
}

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

.feature-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 208, 255, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 208, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 2.5rem;
    color: var(--accent);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

.feature-description {
    color: var(--text-light);
    line-height: 1.8;
}

/* 合作号召区域 */
.cooperation-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(10, 23, 42, 0.9), rgba(15, 30, 60, 0.9));
    text-align: center;
}

.cooperation-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.cooperation-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.cooperation-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), var(--gradient-end));
    color: #11172a;
    font-weight: 700;
    text-decoration: none;
    padding: 18px 50px;
    border-radius: 50px;
    font-size: 1.2rem;
    box-shadow: 0 0 25px rgba(0, 255, 202, 0.5);
    transition: all 0.4s ease;
    position: relative;
    z-index: 2;
    letter-spacing: 1px;
    border: none;
    overflow: hidden;
    cursor: pointer;
}

.cooperation-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 40px rgba(0, 255, 202, 0.8);
}

/* 真实案例验证区域 */
.verification-section {
    padding: 80px 0;
    text-align: center;
}

.verification-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.verification-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 800px;
    margin: 0 auto 40px;
}

.verification-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.verification-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
    transition: all 0.4s ease;
}

.verification-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 208, 255, 0.3);
}

.verification-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.verification-item h4 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

.verification-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 投放方式区域 */
.methods-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(10, 23, 42, 0.9), rgba(15, 30, 60, 0.9));
}

.methods-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.methods-header {
    text-align: center;
    margin-bottom: 60px;
}

.methods-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.methods-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.method-item {
    background: rgba(15, 23, 42, 0.6);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(100, 150, 255, 0.1);
}

.method-item:hover {
    background: rgba(0, 208, 255, 0.1);
    transform: translateY(-5px);
}

.method-item span {
    font-size: 1.1rem;
    color: var(--text-main);
}

/* 服务系统介绍 */
.services-system {
    padding: 80px 0;
}

.system-header {
    text-align: center;
    margin-bottom: 60px;
}

.system-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.system-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
}

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

.system-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 150, 255, 0.1);
    transition: all 0.4s ease;
}

.system-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 208, 255, 0.3);
}

.system-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 25px;
}

.system-card h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--text-main);
}

.system-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .problem-title {
        font-size: 3.5rem;
    }

    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        gap: 25px;
    }

    .problem-title {
        font-size: 3rem;
    }

    .problem-subtitle {
        font-size: 1.5rem;
    }

    .about-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .problem-title {
        font-size: 2.5rem;
    }

    .problem-subtitle {
        font-size: 1.3rem;
    }

    .value-container {
        padding: 20px;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .section-subtitle {
        font-size: 1.1rem;
    }

    .comparison-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .problem-title {
        font-size: 2rem;
    }

    .feature-tag {
        width: 100%;
    }

    .cta-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn {
    animation: fadeInUp 0.8s ease forwards;
}