/* 全局样式 */
:root {
    --primary-color: #2999e2; /* 骁舟蓝 - 主色 */
    --secondary-color: #666666; /* 智慧灰 - 辅助色 */
    --accent-color: #FF6B35; /* 橙色 - 点睛色 */
    --white: #FFFFFF; /* 白色 */
    --light-gray: #F5F7F9; /* 浅灰 */
    --dark-gray: #333333; /* 深灰 */
    --success-color: #4CAF50; /* 成功色 */
    --warning-color: #FFC107; /* 警告色 */
    --danger-color: #F44336; /* 危险色 */
    --transition: all 0.3s ease;
}

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

body {
    font-family: "Source Han Sans CN", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--secondary-color);
    background-color: var(--white);
}

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

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

ul {
    list-style: none;
}

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

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: #1a88cc;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(41, 153, 226, 0.3);
}

.btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(41, 153, 226, 0.3);
}

.btn-accent {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-accent:hover {
    background-color: #e55a2a;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    color: var(--dark-gray);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo img {
    height: 40px;
}

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

.nav-links li a {
    font-weight: 500;
    position: relative;
}

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

.nav-links li a.active::after,
.nav-links li a:hover::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 10px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 1000;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content a {
    display: block;
    padding: 10px 20px;
    font-weight: 400;
}

.dropdown-content a:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.contact-btn {
    margin-left: 20px;
}

.hamburger {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark-gray);
}

/* 英雄区域样式 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    padding: 0 20px;
}

.hero-content h1 {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.3));
}

.hero-bg-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0a6fb8 100%);
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
}

/* 社会认同样式 */
.social-proof {
    background-color: var(--light-gray);
    padding: 40px 0;
}

.social-proof .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.client-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.logo-placeholder {
    width: 120px;
    height: 60px;
    background-color: var(--white);
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    color: var(--primary-color);
    font-weight: 500;
}

/* 痛点陈述样式 */
.pain-points {
    padding: 80px 0;
}

.pain-points .container {
    text-align: center;
}

.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.pain-point-item {
    padding: 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.pain-point-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.pain-point-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.pain-point-item h3 {
    margin-bottom: 15px;
}

/* 解决方案预览样式 */
.services-overview {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.services-overview .container {
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    padding: 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.service-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-item h3 {
    margin-bottom: 15px;
}

/* 为何选择我们样式 */
.why-us {
    padding: 80px 0;
}

.why-us .container {
    text-align: center;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.why-us-item {
    padding: 30px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.why-us-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.icon-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(41, 153, 226, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.icon-circle i {
    font-size: 2rem;
    color: var(--primary-color);
}

.why-us-item h3 {
    margin-bottom: 15px;
}

/* 精选案例展示样式 */
.case-studies {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.case-studies .container {
    text-align: center;
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-item {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.case-image {
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.case-item:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 25px;
    text-align: left;
}

.case-content h3 {
    margin-bottom: 10px;
}

.view-more {
    margin-top: 40px;
}

/* 专家寄语样式 */
.expert-insight {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: var(--white);
}

.expert-insight .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
}

.expert-content,
.expert-image {
    flex: 1;
    min-width: 300px;
}

.expert-content h2 {
    color: var(--white);
}

.expert-content h2::after {
    background-color: var(--white);
}

blockquote {
    font-size: 1.25rem;
    font-style: italic;
    margin: 30px 0;
    position: relative;
    padding-left: 25px;
}

blockquote::before {
    content: '"';
    font-size: 3rem;
    position: absolute;
    top: -20px;
    left: -10px;
    color: rgba(255, 255, 255, 0.2);
}

blockquote footer {
    font-size: 1rem;
    font-style: normal;
    margin-top: 15px;
}

.expert-image img {
    width: 100%;
    max-width: 300px;
    border-radius: 50%;
    display: block;
    margin: 0 auto;
    border: 5px solid rgba(255, 255, 255, 0.2);
}

/* 资源中心入口样式 */
.resources-cta {
    padding: 80px 0;
    text-align: center;
    background-color: var(--white);
}

.resources-cta h2 {
    margin-bottom: 20px;
}

.resources-cta p {
    max-width: 600px;
    margin: 0 auto 30px;
}

/* 最终CTA区域样式 */
.final-cta {
    padding: 80px 0;
    background-color: var(--dark-gray);
    color: var(--white);
    text-align: center;
}

.final-cta h2 {
    color: var(--white);
}

.final-cta h2::after {
    background-color: var(--white);
}

.final-cta p {
    max-width: 600px;
    margin: 0 auto 30px;
}

.final-cta .btn-accent {
    margin-bottom: 40px;
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.contact-info p {
    display: flex;
    align-items: center;
    margin: 0;
}

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

/* 页脚样式 */
footer {
    background-color: #222;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-logo,
.footer-links {
    flex: 1;
    min-width: 200px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.footer-logo p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 响应式样式 */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        transition: var(--transition);
        z-index: 999;
    }

    .menu.active {
        left: 0;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: 100%;
        gap: 20px;
    }

    .dropdown-content {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        box-shadow: none;
        display: none;
    }

    .dropdown:hover .dropdown-content {
        display: block;
    }

    .hamburger {
        display: block;
    }

    .contact-btn {
        display: none;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .footer-content {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

/* 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}