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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333333;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    background-attachment: fixed;
    overflow-x: hidden;
}

/* 添加科技感字体 */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&display=swap');

/* 移除复杂的装饰元素 */
.scan-line {
    display: none;
}

.tech-decoration {
    display: none;
}

/* 简化动画效果 */
@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(255, 255, 255, 0.3); }
    50% { box-shadow: 0 0 15px rgba(255, 255, 255, 0.5); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

@keyframes scan {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(0, 0, 0, 0.5);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 44px;
}

.nav-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 32px;
    width: auto;
    object-fit: contain;
    transition: all 0.3s ease;
    cursor: pointer;
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-image:active {
    transform: scale(0.95);
}

.logo-text {
    margin-left: 10px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    white-space: nowrap;
}



.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
    margin: 0;
    padding: 0;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.nav-link {
    text-decoration: none;
    color: #000000;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    opacity: 0.8;
    position: relative;
    padding: 5px 10px;
    border-radius: 5px;
}

.nav-link:hover {
    color: #ffffff;
    opacity: 1;
    background: rgba(0, 0, 0, 0.9);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #000000, #333333);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-link::after {
    display: none;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #000000;
    margin: 3px 0;
    transition: 0.3s;
}

/* 按钮样式 */
.cta-button, .search-button, .submit-button {
    background: linear-gradient(45deg, #1e3a8a, #3b82f6);
    color: #ffffff;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button::before, .search-button::before, .submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
    transition: left 0.5s;
}

.cta-button:hover::before, .search-button:hover::before, .submit-button:hover::before {
    left: 100%;
}

.cta-button:hover, .search-button:hover, .submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

/* 主页英雄区域 */
.hero {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: #333333;
    padding: 120px 0 80px;
    text-align: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.02) 0%, transparent 70%);
    pointer-events: none;
}

/* 图片轮播 */
.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.carousel-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3) contrast(1.2);
    position: relative;
}

.carousel-slide img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.05), rgba(200, 200, 200, 0.05));
    pointer-events: none;
}

.carousel-caption {
    position: absolute;
    bottom: 15%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    z-index: 2;
    display: none;
}

.carousel-caption h2 {
    font-size: 2rem;
    margin-bottom: 0;
    margin-right: 0.8rem;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
    display: inline-block;
    font-weight: 600;
    letter-spacing: 1px;
    color: #ffffff;
    text-transform: uppercase;
}

.carousel-caption p {
    font-size: 1.1rem;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.4);
    display: inline-block;
    font-weight: 400;
    opacity: 0.9;
    color: #ffffff;
    letter-spacing: 1px;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 2rem;
    padding: 1rem 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 3;
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn.prev {
    left: 2rem;
}

.carousel-btn.next {
    right: 2rem;
}

.carousel-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active,
.dot:hover {
    background: white;
    transform: scale(1.2);
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    z-index: 4;
    background: rgba(192, 192, 192, 0.1);
    padding: 36px;
    border-radius: 18px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(192, 192, 192, 0.3);
    box-shadow: 
        0 13px 31px rgba(192, 192, 192, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    overflow: hidden;
    text-align: center;
    min-width: 360px;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.2), rgba(192, 192, 192, 0.1));
    border-radius: 21px;
    z-index: -1;
    opacity: 0.4;
    backdrop-filter: blur(3px);
}

.hero-content::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.1), rgba(192, 192, 192, 0.05));
    border-radius: 18px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: -1;
}

.hero-content:hover {
    transform: translate(-50%, -50%) scale(0.92);
    background: rgba(192, 192, 192, 0.2);
    border-color: rgba(192, 192, 192, 0.4);
    box-shadow: 
        0 18px 36px rgba(192, 192, 192, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.hero-content h1 {
    font-size: 2.25rem;
    margin-bottom: 18px;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-content p {
    font-size: 1.17rem;
    margin-bottom: 27px;
    opacity: 0.9;
    color: #ffffff;
    letter-spacing: 1px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

/* 服务部分 */
.services {
    padding: 120px 0 80px 0;
    min-height: 100vh;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 70%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.services h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 60px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: none;
    font-weight: 700;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: rgba(255, 255, 255, 0.9);
    padding: 50px 35px;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(0, 0, 0, 0.2);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: #ffffff;
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: none;
    font-weight: 700;
}

.service-card p {
    color: #666666;
    line-height: 1.7;
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
}

/* 价格参考部分 */
.pricing-contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
}

.pricing-contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

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

.section-header h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: none;
    font-weight: 700;
}

.section-header p {
    font-size: 1.3rem;
    color: #666666;
    letter-spacing: 1px;
    text-shadow: none;
    max-width: 600px;
    margin: 0 auto;
}

.pricing-section,
.contact-section {
    background: rgba(255, 255, 255, 0.9);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    max-width: 1000px;
    margin: 0 auto 60px auto;
}

.pricing-section::before,
.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.pricing-section:hover::before,
.contact-section:hover::before {
    left: 100%;
}

.section-title {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 15px;
}

.title-icon {
    font-size: 2.5rem;
    color: #3b82f6;
}

.section-title h3 {
    font-size: 2rem;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: none;
    font-weight: 700;
    margin: 0;
}

.section-description {
    font-size: 1.1rem;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 30px;
}



/* 联系方式卡片样式 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.contact-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #1e40af, #3b82f6);
    background-size: 200% 100%;
    animation: gradient-shift 3s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    background: rgba(255, 255, 255, 0.95);
}

.contact-card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
    transition: all 0.3s ease;
}

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

.contact-card-content h4 {
    font-size: 1.2rem;
    margin: 0 0 10px 0;
    color: #333333;
    font-weight: 700;
}

.contact-card-content p {
    color: #666666;
    font-size: 1.1rem;
    margin: 0;
    font-weight: 500;
    word-break: break-all;
}

/* 联系方式表格样式 */
.contact-table {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    overflow: hidden;
    margin-bottom: 30px;
}

.contact-row {
    display: flex;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.contact-row:last-child {
    border-bottom: none;
}

.contact-row:hover {
    background: rgba(59, 130, 246, 0.05);
}

.contact-icon {
    font-size: 2rem;
    color: #3b82f6;
    margin-right: 20px;
    min-width: 40px;
    text-align: center;
}

.contact-info {
    flex: 1;
}

.contact-info h4 {
    font-size: 1.1rem;
    margin: 0 0 5px 0;
    color: #333333;
    font-weight: 700;
}

.contact-info p {
    color: #666666;
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

.contact-action {
    margin-left: auto;
}

.contact-link {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
}

.contact-note {
    display: inline-block;
    padding: 6px 15px;
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.contact-description {
    text-align: center;
    padding: 25px 20px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.contact-description p {
    color: #666666;
    line-height: 1.6;
    font-size: 1rem;
    margin-bottom: 10px;
}

.contact-description p:last-child {
    margin-bottom: 0;
    font-weight: 600;
    color: #333333;
}

.pricing-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.pricing-filters select {
    padding: 15px 25px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: #333333;
    min-width: 200px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

.pricing-filters select:focus {
    outline: none;
    border-color: #333333;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 1);
}

.pricing-filters select option {
    background: #ffffff;
    color: #333333;
}

.price-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.price-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.price-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.price-item:hover::before {
    left: 100%;
}

.price-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: rgba(0, 0, 0, 0.2);
}

.price-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.price-header h4 {
    font-size: 1.3rem;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: none;
    font-weight: 700;
}

.condition-badge {
    padding: 6px 15px;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.condition-a {
    background: linear-gradient(135deg, #ffffff, #e0e0e0);
    color: #000000;
}

.condition-b {
    background: linear-gradient(135deg, #cccccc, #999999);
    color: #000000;
}

.condition-c {
    background: linear-gradient(135deg, #666666, #333333);
    color: #ffffff;
}

.price-range {
    font-size: 1.2rem;
    font-weight: 700;
    color: #333333;
    margin-bottom: 10px;
    text-shadow: none;
}

.price-description {
    color: #666666;
    font-size: 1rem;
    opacity: 0.9;
}

.no-results {
    text-align: center;
    color: #666666;
    font-style: italic;
    grid-column: 1 / -1;
}

/* 回收表单 */
.recycle-form {
    padding: 80px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
    overflow: hidden;
}

.recycle-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.recycle-form h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: none;
    font-weight: 700;
}

#computer-form {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.9);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: none;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: #333333;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #333333;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 1);
}

.form-group select option {
    background: #ffffff;
    color: #333333;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.image-preview {
    margin-top: 10px;
}

.image-preview img {
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}



/* 关于我们 */
.about {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: none;
    font-weight: 700;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #666666;
    line-height: 1.8;
    letter-spacing: 1px;
    text-shadow: none;
}

.about-features {
    display: grid;
    gap: 30px;
}

.feature {
    background: rgba(255, 255, 255, 0.9);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.feature:hover::before {
    left: 100%;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
    border-color: rgba(0, 0, 0, 0.2);
}

.feature h4 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #333333;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: none;
    font-weight: 700;
}

.feature p {
    color: #666666;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #333333 0%, #1a1a1a 100%);
    color: #ffffff;
    padding: 50px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 15px;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    font-weight: 700;
}

.footer-section p {
    margin-bottom: 8px;
    opacity: 0.8;
    color: #ffffff;
    letter-spacing: 0.5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    opacity: 0.7;
    color: #ffffff;
}

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.message.show {
    transform: translateX(0);
}

.message-success {
    background: #27ae60;
}

.message-error {
    background: #e74c3c;
}

.message-info {
    background: #3498db;
}

/* 动画效果 */
.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .logo-image {
        height: 28px;
    }
    
    .logo-text {
        font-size: 14px;
        margin-left: 8px;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 44px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        backdrop-filter: blur(20px);
        padding: 20px 0;
        border-top: 1px solid rgba(0, 0, 0, 0.3);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    
    .carousel-caption h2 {
        font-size: 1.3rem;
        margin-right: 0.4rem;
        letter-spacing: 0.3px;
    }
    
    .carousel-caption p {
        font-size: 0.85rem;
    }
    
    .hero-content {
        padding: 20px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .carousel-btn {
        font-size: 1.5rem;
        padding: 0.8rem 1.2rem;
    }
    
    .carousel-btn.prev {
        left: 1rem;
    }
    
    .carousel-btn.next {
        right: 1rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

    .pricing-section {
        padding: 30px 25px;
        margin: 0 20px 40px 20px;
    }
    
    .contact-section {
        padding: 30px 25px;
        margin: 0 20px 40px 20px;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 15px;
        margin: 0 20px 30px 20px;
    }
    
    .contact-card {
        padding: 20px;
    }
    
    .contact-card-icon {
        font-size: 2.5rem;
    }
    
    .contact-card-content h4 {
        font-size: 1.1rem;
    }
    
    .contact-card-content p {
        font-size: 1rem;
    }
    
    .contact-table {
        margin: 0 20px 30px 20px;
    }
    
    .contact-row {
        padding: 15px 20px;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .section-header p {
        font-size: 1.1rem;
    }
    
    .section-title h3 {
        font-size: 1.6rem;
    }
    
    .title-icon {
        font-size: 2rem;
    }
    

    
    .pricing-filters {
        flex-direction: column;
        align-items: center;
    }

    .pricing-filters select {
        min-width: 250px;
    }

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

    #computer-form {
        padding: 30px 20px;
    }
    

    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
        max-width: 100%;
        padding: 0 20px;
    }
    
    .service-card {
        padding: 40px 25px;
        min-height: 250px;
    }
    
    .service-icon {
        font-size: 3rem;
        margin-bottom: 20px;
    }
    
    .service-card h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    
    .service-card p {
        font-size: 1rem;
    }
    
    .services h2 {
        font-size: 2.2rem;
        margin-bottom: 50px;
    }
}

@media (max-width: 480px) {
    .logo-image {
        height: 24px;
    }
    
    .logo-text {
        font-size: 12px;
        margin-left: 6px;
    }
    
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .service-card {
        padding: 35px 20px;
        min-height: 220px;
    }
    
    .service-icon {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }
    
    .service-card h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .service-card p {
        font-size: 0.95rem;
    }
    
    .services h2 {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 0 15px;
    }
    
    .contact-item {
        padding: 25px 15px;
        min-height: 160px;
    }
    
    .contact-icon {
        font-size: 2rem;
        margin-bottom: 12px;
    }
    
    .contact-item h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    
    .contact-item p {
        font-size: 0.95rem;
        margin-bottom: 10px;
    }
    
    .contact-description {
        padding: 25px 10px;
        margin: 0 15px;
    }
    
    .pricing-section {
        padding: 25px 20px;
        margin: 0 15px 30px 15px;
    }
    
    .contact-section {
        padding: 25px 20px;
        margin: 0 15px 30px 15px;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 10px;
        margin: 0 15px 25px 15px;
    }
    
    .contact-card {
        padding: 12px;
    }
    
    .contact-card-icon {
        font-size: 1.8rem;
        margin-bottom: 8px;
    }
    
    .contact-card-content h4 {
        font-size: 0.95rem;
        margin-bottom: 6px;
    }
    
    .contact-card-content p {
        font-size: 0.85rem;
    }
    
    .contact-table {
        margin: 0 15px 25px 15px;
    }
    
    .contact-row {
        padding: 12px 15px;
    }
    
    .contact-icon {
        font-size: 1.5rem;
        margin-right: 15px;
        min-width: 30px;
    }
    
    .contact-info h4 {
        font-size: 1rem;
        margin: 0 0 3px 0;
    }
    
    .contact-info p {
        font-size: 0.9rem;
    }
    
    .contact-description {
        padding: 20px 15px;
    }
    
    .contact-description p {
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .section-title h3 {
        font-size: 1.4rem;
    }
    
    .title-icon {
        font-size: 1.8rem;
    }
    

    
    .price-results {
        grid-template-columns: 1fr;
    }

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

/* 后台管理链接样式 */
.admin-link {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white !important;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.admin-link:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    color: white !important;
    opacity: 1;
}