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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* 颜色变量 */
:root {
    --primary-color: #0A6EBD;
    --secondary-color: #2D2D2D;
    --accent-color: #00C4FF;
    --light-bg: #F5F9FF;
    --white: #FFFFFF;
}

/* 通用样式 */
h1,
h2,
h3,
h4 {
    font-weight: 600;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

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

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

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 196, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 196, 255, 0.6);
}

/* 头部Banner */
.hero {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 L0,100 Z" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 20px 20px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-logo {
    width: 180px;
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* 核心优势 */
.advantages {
    background-color: var(--light-bg);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.stat-item {
    text-align: center;
    padding: 32px 20px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(10, 110, 189, 0.1);
    border: 1px solid rgba(10, 110, 189, 0.08);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0A6EBD, #00C4FF);
    border-radius: 16px 16px 0 0;
}

.stat-item::after {
    content: '';
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(10, 110, 189, 0.06) 0%, transparent 70%);
}

.stat-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(10, 110, 189, 0.18);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #0A6EBD, #00C4FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    line-height: 1.1;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.9rem;
    color: #6b7280;
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-top: 4px;
    position: relative;
    padding-top: 10px;
}

.stat-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 2px;
    background: linear-gradient(90deg, #0A6EBD, #00C4FF);
    border-radius: 2px;
}

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

.advantage-card {
    background: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.advantage-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.advantage-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

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

.service-card {
    display: block;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    background: var(--white);
    color: inherit;
    text-decoration: none;
}

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

.service-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.service-content {
    padding: 20px;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.service-more {
    color: var(--accent-color);
    font-weight: bold;
    display: inline-block;
    margin-top: 15px;
}

/* 解决方案 */
.solutions {
    background-color: var(--light-bg);
}

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

.industry-tab {
    padding: 10px 24px;
    background: var(--white);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1.5px solid #e5e7eb;
    font-size: 0.95rem;
    font-weight: 500;
    color: #4b5563;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.industry-tab:hover {
    border-color: #0A6EBD;
    color: #0A6EBD;
    box-shadow: 0 4px 16px rgba(10, 110, 189, 0.12);
}

.industry-tab.active {
    background: linear-gradient(135deg, #0A6EBD, #00C4FF);
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 4px 20px rgba(10, 110, 189, 0.3);
}

.solution-content {
    background: var(--white);
    border-radius: 16px;
    padding: 44px 48px;
    box-shadow: 0 8px 32px rgba(10, 110, 189, 0.08);
    border: 1px solid rgba(10, 110, 189, 0.07);
    position: relative;
    overflow: hidden;
}

.solution-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, #0A6EBD, #00C4FF);
    border-radius: 0 4px 4px 0;
}

.solution-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 32px;
    color: #111827;
    padding-left: 4px;
}

.solution-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.step {
    display: flex;
    gap: 20px;
    position: relative;
    padding-bottom: 28px;
}

.step:last-child {
    padding-bottom: 0;
}

.step-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.step-number {
    background: linear-gradient(135deg, #0A6EBD, #00C4FF);
    color: var(--white);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 14px rgba(10, 110, 189, 0.35);
    position: relative;
    z-index: 1;
}

.step-connector {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, rgba(10, 110, 189, 0.25), rgba(0, 196, 255, 0.1));
    margin-top: 6px;
    min-height: 20px;
}

.step:last-child .step-connector {
    display: none;
}

.step-content {
    padding-top: 8px;
    flex: 1;
}

.step-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #111827;
}

.step-content p {
    font-size: 0.88rem;
    color: #6b7280;
    line-height: 1.8;
    margin: 0;
}

/* 成功案例 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.case-card {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
    background: var(--white);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 48px rgba(10, 110, 189, 0.16);
}

.case-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.case-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(10, 30, 72, 0.55) 100%);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.case-card:hover .case-image::after {
    opacity: 1;
}

.case-image::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0A6EBD, #00C4FF);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 1;
}

.case-card:hover .case-image::before {
    transform: scaleX(1);
}

.case-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #111827;
    line-height: 1.4;
}

.case-content>p {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.75;
    margin: 0;
    flex: 1;
}

.case-stats {
    display: flex;
    margin-top: 20px;
    border-top: 1px solid #f0f0f0;
    padding-top: 16px;
}

.case-stat {
    flex: 1;
    text-align: center;
    padding: 4px 8px;
    position: relative;
}

.case-stat+.case-stat::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 28px;
    width: 1px;
    background: #e5e7eb;
}

.case-stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, #0A6EBD, #00C4FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.case-stat-label {
    font-size: 0.75rem;
    color: #9ca3af;
    margin-top: 3px;
    font-weight: 500;
}

.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.client-logo {
    height: 60px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.client-logo:hover {
    opacity: 1;
}

/* 联系我们 */
.contact {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-method {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-icon {
    margin-right: 15px;
    font-size: 1.5rem;
    color: var(--accent-color);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    border: none;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.9);
}

.contact-form textarea {
    height: 120px;
    resize: vertical;
}

.contact-form button {
    background: var(--accent-color);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.contact-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 196, 255, 0.4);
}

.map-container {
    height: 300px;
    margin-top: 30px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.navbar-logo img {
    height: 40px;
}

.navbar-menu {
    display: flex;
    gap: 25px;
}

.navbar-menu a {
    color: var(--secondary-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 页脚 */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 0;
}

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

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-column p {
    opacity: 0.8;
    margin-bottom: 15px;
}

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

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

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

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

.contact-icon {
    margin-right: 10px;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 固定联系按钮 */
.fixed-contact {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--accent-color);
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 100;
    cursor: pointer;
    transition: all 0.3s ease;
}

.fixed-contact:hover {
    transform: scale(1.1);
}

/* 动画 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }

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

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

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

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

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .navbar-menu.active {
        display: flex;
    }

    .navbar-toggle {
        display: block;
    }
}