/* Google Map Review - 金钥匙网站设计广告公司 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a73e8;
    --primary-dark: #1557b0;
    --secondary-color: #34a853;
    --accent-red: #ea4335;
    --accent-yellow: #fbbc04;
    --text-dark: #202124;
    --text-light: #5f6368;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #dadce0;
    --shadow: 0 1px 3px rgba(60,64,67,0.15);
    --shadow-hover: 0 4px 12px rgba(60,64,67,0.2);
}

body {
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* 顶部栏 */
.top-bar {
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 8px 0;
    font-size: 0.9rem;
}

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

.top-info {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.top-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-info a {
    color: white;
    text-decoration: none;
}

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

.lang-switch {
    display: flex;
    gap: 10px;
}

.lang-switch a {
    color: white;
    text-decoration: none;
    padding: 4px 12px;
    border-radius: 4px;
    transition: background 0.3s;
    font-weight: 500;
}

.lang-switch a:hover,
.lang-switch a.active {
    background: rgba(255,255,255,0.2);
}

/* 导航栏 */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 12px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    display: flex;
    gap: 3px;
}

.logo-icon span {
    width: 8px;
    height: 24px;
    border-radius: 2px;
}

.logo-icon span:nth-child(1) { background: var(--primary-color); }
.logo-icon span:nth-child(2) { background: var(--accent-red); }
.logo-icon span:nth-child(3) { background: var(--accent-yellow); }
.logo-icon span:nth-child(4) { background: var(--secondary-color); }

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-cn {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-en {
    font-size: 0.7rem;
    color: var(--text-light);
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 24px;
    transition: all 0.3s;
}

.nav-menu a:hover {
    background-color: var(--bg-light);
}

.nav-menu a.active {
    background-color: #e8f0fe;
    color: var(--primary-color);
}

.nav-phone {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.nav-phone:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-hover);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, #e8f0fe 0%, #f1f3f4 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(26,115,232,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 2.8rem;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text h1 span {
    color: var(--primary-color);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.review-card-demo {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-hover);
    max-width: 400px;
}

.review-card-demo .stars {
    color: var(--accent-yellow);
    font-size: 2rem;
    margin-bottom: 15px;
}

.review-card-demo .review-text {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 20px;
    font-style: italic;
}

.review-card-demo .reviewer {
    display: flex;
    align-items: center;
    gap: 12px;
}

.reviewer-avatar {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

/* 按钮 */
.btn {
    padding: 14px 28px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(26,115,232,0.4);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: #e8f0fe;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* 章节通用样式 */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* 服务卡片 */
.services-section {
    background-color: var(--bg-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s;
    text-align: center;
}

.service-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #e8f0fe, #f1f3f4);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.service-icon.blue { color: var(--primary-color); }
.service-icon.red { color: var(--accent-red); }
.service-icon.yellow { color: var(--accent-yellow); background: linear-gradient(135deg, #fef7e0, #fff8e1); }
.service-icon.green { color: var(--secondary-color); background: linear-gradient(135deg, #e6f4ea, #f1f8e9); }

.service-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

.service-card .learn-more {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 15px;
    transition: gap 0.3s;
}

.service-card .learn-more:hover {
    gap: 10px;
}

/* 为什么选择我们 */
.why-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.why-section .section-header h2,
.why-section .section-header p {
    color: white;
}

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

.why-card {
    text-align: center;
    padding: 30px 20px;
}

.why-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--accent-yellow);
}

.why-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.why-card p {
    opacity: 0.9;
    line-height: 1.7;
}

/* 统计数据 */
.stats-section {
    background-color: var(--bg-light);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

/* FAQ */
.faq-section {
    background-color: var(--bg-white);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    cursor: pointer;
    background: var(--bg-white);
    transition: background 0.3s;
}

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

.faq-question h4 {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 500;
}

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

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

.faq-answer {
    padding: 0 24px 20px;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
}

/* 联系表单 */
.contact-section {
    background-color: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.contact-item i {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 3px;
}

.contact-item h4 {
    color: var(--text-dark);
    margin-bottom: 5px;
    font-size: 1rem;
}

.contact-item p,
.contact-item a {
    color: var(--text-light);
    text-decoration: none;
}

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

/* 表单 */
.contact-form-wrapper {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.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-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
    background-color: var(--bg-white);
}

.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(26,115,232,0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 80px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于页面 */
.about-content {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 12px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image i {
    font-size: 8rem;
    color: rgba(255,255,255,0.3);
}

.about-text h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 25px;
}

.tech-tag {
    background: #e8f0fe;
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 服务详情页 */
.service-detail-section {
    padding: 60px 0;
}

.service-detail-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 30px;
}

.service-detail-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.service-detail-card h3 i {
    color: var(--primary-color);
}

.service-detail-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-detail-card ul {
    list-style: none;
    margin-bottom: 20px;
}

.service-detail-card ul li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.service-detail-card ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* 页脚 */
.footer {
    background-color: #202124;
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-col p {
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-col h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

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

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255,255,255,0.7);
}

.contact-list i {
    color: var(--primary-color);
    margin-top: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255,255,255,0.5);
}

/* 响应式 */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

    .nav-phone {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

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

    .hero-visual {
        order: -1;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

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

@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        text-align: center;
    }

    .top-info {
        flex-direction: column;
        gap: 8px;
    }

    .hero {
        padding: 60px 0;
    }

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

    .section-header h2 {
        font-size: 1.8rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-form-wrapper {
        padding: 30px 20px;
    }
}

/* 移动端菜单 */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    padding: 20px;
    box-shadow: var(--shadow);
    gap: 5px;
    border-top: 1px solid var(--border-color);
}

.nav-menu.active a {
    display: block;
    padding: 12px 20px;
    border-radius: 8px;
}