/* ==========================================
   金钥匙电脑手机维修安装服务 - 样式文件
   ========================================== */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #0891b2;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

ul {
    list-style: none;
}

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

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

/* Header */
header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background: var(--primary-color);
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.header-top a {
    color: white;
}

.header-top a:hover {
    text-decoration: underline;
}

.header-main {
    padding: 15px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-color);
    text-decoration: none;
    transition: opacity 0.3s;
}

.logo a:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-text span {
    color: var(--primary-color);
}

nav ul {
    display: flex;
    gap: 30px;
}

nav a {
    font-weight: 500;
    color: var(--text-dark);
    padding: 10px 0;
    position: relative;
    transition: color 0.3s;
}

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

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

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.95;
}

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

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: #d97706;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

.btn-secondary {
    background: var(--primary-color);
    color: white;
}

.btn-secondary:hover {
    background: var(--primary-dark);
}

/* Section Styles */
section {
    padding: 80px 0;
}

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

.section-title h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

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

.service-card ul {
    margin-top: 15px;
    padding-left: 0;
}

.service-card li {
    padding: 8px 0;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card li i {
    color: var(--primary-color);
}

/* Features Section */
.features {
    background: var(--bg-light);
}

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

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: var(--shadow);
}

.feature-icon i {
    font-size: 36px;
    color: var(--primary-color);
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.feature-item p {
    color: var(--text-light);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-image {
    text-align: center;
}

.about-image img {
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
}

.stat-item h4 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-item p {
    color: var(--text-light);
    font-size: 14px;
    margin: 0;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.cta p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-phone {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
}

.cta-phone i {
    margin-right: 10px;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    margin-bottom: 5px;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

.contact-item a {
    color: var(--primary-color);
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s, box-shadow 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.contact-form .btn {
    width: 100%;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* Service Detail Page */
.service-detail {
    padding: 60px 0;
}

.service-detail-content {
    max-width: 800px;
    margin: 0 auto;
}

.service-detail h2 {
    font-size: 28px;
    margin: 30px 0 15px;
    color: var(--text-dark);
}

.service-detail p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.service-detail ul {
    margin: 20px 0;
    padding-left: 0;
}

.service-detail li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-dark);
}

.service-detail li i {
    color: var(--primary-color);
    font-size: 18px;
}

/* Price Table */
.price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
}

.price-table th,
.price-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.price-table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-dark);
}

.price-table td {
    color: var(--text-light);
}

.price-table tr:hover td {
    background: var(--bg-light);
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 500px;
}

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

/* Map */
.map-container {
    margin-top: 40px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 0;
}

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

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: white;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.7;
    margin-bottom: 10px;
}

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

.footer-section ul a {
    color: #9ca3af;
    transition: color 0.3s;
}

.footer-section ul a:hover {
    color: white;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: #9ca3af;
}

.footer-contact-item i {
    color: var(--primary-color);
    width: 20px;
}

.footer-contact-item a {
    color: #9ca3af;
}

.footer-contact-item a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
    font-size: 14px;
}

.footer-bottom a {
    color: var(--primary-color);
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .header-top .container {
        justify-content: center;
        text-align: center;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        box-shadow: var(--shadow);
        padding: 20px;
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
    }

    nav a {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 28px;
    }

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

    .contact-form {
        padding: 25px;
    }

    .cta h2 {
        font-size: 28px;
    }

    .cta-phone {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 50px 0;
    }

    .hero h1 {
        font-size: 26px;
    }

    section {
        padding: 50px 0;
    }

    .service-card {
        padding: 20px;
    }

    .logo-text {
        font-size: 16px;
    }
}