/* ========================================
   107城市广场 - 全站样式表
   ======================================== */

/* 基础重置与变量 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a73e8;
    --primary-dark: #1557b0;
    --secondary-color: #34a853;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --gradient-blue: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(26, 115, 232, 0.9) 0%, rgba(66, 133, 244, 0.85) 100%);
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-white);
    font-size: 16px;
}

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

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

/* ========================================
   导航栏样式
   ======================================== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-lang-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2px;
}

.logo-sub {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: rgba(26, 115, 232, 0.08);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 语言切换器样式 */
.language-switcher {
    display: flex;
    gap: 8px;
    align-items: center;
    padding-left: 20px;
    border-left: 2px solid var(--border-color);
}

.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 24px;
    transition: all 0.3s ease;
    background: var(--bg-light);
    border: 2px solid transparent;
    overflow: hidden;
}

.lang-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--bg-white);
}

.lang-btn.active {
    border-color: var(--primary-color);
    background: rgba(26, 115, 232, 0.1);
    box-shadow: var(--shadow-sm);
}

.flag-icon {
    width: 28px;
    height: 28px;
    object-fit: cover;
    border-radius: 3px;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* ========================================
   首页 Banner 样式
   ======================================== */
.hero-banner {
    background: var(--gradient-overlay), url('/assets/images/banner-bg.jpg') center/cover;
    color: var(--bg-white);
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero-content .subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    min-width: 160px;
}

/* ========================================
   内容板块样式
   ======================================== */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-title .subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-blue);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* ========================================
   特色卡片网格
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.4rem;
    color: var(--text-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

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

/* ========================================
   优势列表
   ======================================== */
.advantages-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.advantage-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--gradient-blue);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.advantage-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.advantage-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ========================================
   内容板块（图文混排）
   ======================================== */
.content-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.content-block.reverse {
    direction: rtl;
}

.content-block.reverse > * {
    direction: ltr;
}

.content-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.content-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.content-text ul {
    list-style: none;
    margin-top: 1.5rem;
}

.content-text ul li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-light);
}

.content-text ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.content-image {
    background: var(--bg-light);
    border-radius: 12px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.content-image img {
    max-width: 100%;
    border-radius: 12px;
}

/* ========================================
   扶持政策板块
   ======================================== */
.policy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.policy-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

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

.policy-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.policy-card h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.policy-card ul {
    list-style: none;
}

.policy-card ul li {
    padding: 0.6rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.policy-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.4rem;
}

/* ========================================
   服务体系
   ======================================== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-item {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.service-item:hover {
    box-shadow: var(--shadow-md);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.service-header .icon {
    font-size: 3rem;
}

.service-header h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    font-weight: 600;
}

.service-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.service-content ul {
    list-style: none;
    margin-top: 1rem;
}

.service-content ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.service-content ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ========================================
   表单样式
   ======================================== */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.form-group label .required {
    color: #e74c3c;
    margin-left: 3px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

select.form-control {
    cursor: pointer;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-actions {
    margin-top: 2rem;
    text-align: center;
}

.success-message,
.error-message {
    padding: 1rem 1.5rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ========================================
   联系卡片
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.contact-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

/* ========================================
   页脚样式
   ======================================== */
.footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--bg-white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-section p {
    line-height: 1.8;
    color: #bdc3c7;
    margin-bottom: 0.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--bg-white);
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 1rem;
    color: #bdc3c7;
}

.footer-contact strong {
    color: var(--bg-white);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1.5rem;
    margin-top: 2rem;
}

.footer-bottom-content {
    text-align: center;
}

.footer-bottom p {
    color: #95a5a6;
    margin-bottom: 0.5rem;
}

.footer-slogan {
    font-weight: 600;
    color: #bdc3c7;
}

/* ========================================
   统计数据展示
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 768px) {
    /* 导航栏 */
    .header-content {
        flex-wrap: wrap;
    }
    
    .logo-lang-wrapper {
        flex: 1;
        justify-content: space-between;
        width: 100%;
    }
    
    .language-switcher {
        padding-left: 10px;
        border-left: 1px solid var(--border-color);
    }
    
    .lang-btn {
        width: 36px;
        height: 36px;
    }
    
    .flag-icon {
        width: 24px;
        height: 24px;
    }
    
    .nav {
        width: 100%;
        order: 3;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-md);
        gap: 0;
    }

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

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
        width: 100%;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Banner */
    .hero-banner {
        padding: 80px 0 60px;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content .subtitle {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    /* 内容板块 */
    .section {
        padding: 50px 0;
    }

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

    .content-block {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .content-block.reverse {
        direction: ltr;
    }

    /* 表单 */
    .form-container {
        padding: 2rem 1.5rem;
    }

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

    /* 网格布局 */
    .features-grid,
    .policy-grid,
    .service-grid {
        grid-template-columns: 1fr;
    }

    /* 页脚 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.4rem;
    }

    .logo-sub {
        font-size: 0.75rem;
    }

    .hero-content h2 {
        font-size: 1.6rem;
    }

    .section-title h2 {
        font-size: 1.5rem;
    }
}