/* 全局样式 */
:root {
    --primary-color: #ff6b6b;
    --secondary-color: #2c3e50;
    --accent-color: #ff9e7d;
    --text-color: #333;
    --light-color: #f9f9f9;
    --dark-color: #2c3e50;
    --border-color: #e0e0e0;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --tertiary-color: #ffd166;
    --card-primary: #ff6b6b;
    --card-secondary: #4ecdc4;
    --card-tertiary: #ffd166;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

ul {
    list-style: none;
}

.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: #ff5252;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    padding: 9px 19px;
    border-radius: 5px;
    border: 1px solid var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    color: #666;
    font-size: 1.1rem;
}

/* 头部样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区样式 */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.6)), url('../img/hero.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: white;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* 纯色卡片样式 */
.color-card {
    border-radius: 8px;
    padding: 40px 30px;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-primary {
    background-color: var(--card-primary);
}

.card-secondary {
    background-color: var(--card-secondary);
}

.card-tertiary {
    background-color: var(--card-tertiary);
}

/* 轮播图样式 */
.slider-section {
    padding: 100px 0;
    background-color: white;
}

.slider-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 8px;
}

.slider {
    display: flex;
    width: 100%;
    height: 500px;
}

.slide {
    flex: 0 0 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    position: absolute;
    width: 100%;
    height: 100%;
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide-content {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 30px;
}

.slide-text {
    padding: 30px;
    text-align: center;
}

.slide-text h3 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.slide-text p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.slider-controls {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.prev-slide, .next-slide {
    background-color: rgba(255, 255, 255, 0.3);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    margin: 0 15px;
}

.prev-slide:hover, .next-slide:hover {
    background-color: white;
    color: var(--primary-color);
}

.slider-dots {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: white;
    transform: scale(1.2);
}

/* 特点区域样式 */
.features {
    padding: 100px 0;
    background-color: var(--light-color);
}

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

.feature-item {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.feature-item h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

/* 服务区域样式 */
.services {
    padding: 100px 0;
}

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

.service-item {
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}

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

.service-card {
    height: 100%;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.service-item h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.service-item p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

/* 关于我们区域样式 */
.about {
    padding: 100px 0;
    background-color: var(--light-color);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: 20px;
    color: #555;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

.company-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    background-color: white;
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    min-width: 150px;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

/* 联系我们区域样式 */
.contact {
    padding: 100px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 25px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-item h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.contact-form {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

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

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 70px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: white;
}

.footer-logo p {
    color: #aaa;
}

.footer-links h3, 
.footer-social h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.footer-links h3::after, 
.footer-social h3::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 0;
}

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

.footer-links ul li a {
    color: #aaa;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 5px;
}

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

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

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

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

.footer-bottom p {
    color: #aaa;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    .about-image {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }
    .contact-content {
        grid-template-columns: 1fr;
    }
    .contact-info {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }
    .slider {
        height: 400px;
    }
    .slide-text h3 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: white;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        padding: 20px;
        transition: var(--transition);
    }
    nav.active {
        left: 0;
    }
    nav ul {
        flex-direction: column;
    }
    nav ul li {
        margin-left: 0;
        margin-bottom: 15px;
    }
    .menu-toggle {
        display: block;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .slider {
        height: 450px;
    }
    .slide-text h3 {
        font-size: 1.8rem;
    }
    .slide-text p {
        font-size: 1rem;
    }
    .slide-icon {
        font-size: 3.5rem;
        width: 90px;
        height: 90px;
        margin-bottom: 20px;
    }
    .company-stats {
        flex-wrap: wrap;
        gap: 20px;
    }
    .hero {
        background-attachment: scroll;
    }
}

@media (max-width: 576px) {
    .section-header h2 {
        font-size: 2rem;
    }
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    .company-stats {
        flex-direction: column;
        gap: 20px;
    }
    .slider {
        height: 500px;
    }
    .slider-controls {
        bottom: 10px;
    }
    .prev-slide, .next-slide {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    .dot {
        width: 8px;
        height: 8px;
    }
    .slide-text h3 {
        font-size: 1.5rem;
    }
    .slide-icon {
        font-size: 3rem;
        width: 80px;
        height: 80px;
    }
}