/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.navbar-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #1e293b;
}

.navbar-logo img {
    height: 3rem;
    margin-right: 0.75rem;
}

.navbar-logo-text {
    font-size: 1.35rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-item {
    margin-left: 1.5rem;
    position: relative;
}

.navbar-link {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    position: relative;
}

.navbar-link:hover {
    color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.05);
}

.navbar-link.active {
    color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.1);
    font-weight: 600;
}

.navbar-mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #3b82f6;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.navbar-mobile-toggle:hover {
    background-color: rgba(59, 130, 246, 0.1);
}

@media (max-width: 992px) {
    .navbar-container {
        padding: 0.75rem 1.5rem;
    }
    
    .navbar-item {
        margin-left: 1rem;
    }
    
    .navbar-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        padding: 0.75rem 1rem;
    }
    
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        height: 100vh;
        background-color: white;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding-top: 80px;
        padding-left: 20px;
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .navbar-menu.active {
        right: 0;
    }
    
    .navbar-item {
        margin: 0.5rem 0;
        width: 100%;
    }
    
    .navbar-link {
        display: block;
        width: 100%;
        padding: 0.75rem 1rem;
        font-size: 1.1rem;
    }
    
    .navbar-mobile-toggle {
        display: block;
        z-index: 1001;
        position: fixed;
        top: 15px;
        right: 15px;
        background-color: white;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    .navbar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
    }
    
    .navbar-overlay.active {
        display: block;
    }
}
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: #f8fafc;
}

.section-title {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: #1e293b;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: linear-gradient(to bottom, #3b82f6, #60a5fa);
    border-radius: 2px;
}

.card {
    transition: all 0.3s ease;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.btn-primary {
    background: linear-gradient(to right, #3b82f6, #60a5fa);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background: linear-gradient(to right, #2563eb, #3b82f6);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    background: linear-gradient(to right, #f59e0b, #fbbf24);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background: linear-gradient(to right, #d97706, #f59e0b);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(245, 158, 11, 0.5);
}

.faq-item {
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem 0;
}

.faq-question {
    font-weight: 500;
    color: #1e293b;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    color: #64748b;
    margin-top: 0.5rem;
    display: none;
}

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

.footer-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    z-index: 1000;
}

.footer-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #64748b;
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.footer-nav-item:hover {
    color: #3b82f6;
}

.footer-nav-item i {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .footer-nav {
        padding: 0.5rem 0;
    }
    
    .footer-nav-item {
        font-size: 0.75rem;
    }
    
    .footer-nav-item i {
        font-size: 1.125rem;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 首屏样式 */
.hero {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    color: white;
    padding: 3rem 0;
    border-radius: 0 0 24px 24px;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,100 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 1;
}

/* 套餐卡片样式 */
.plan-card {
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.plan-popular {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: #ef4444;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* 信号覆盖地图样式 */
.coverage-map {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.coverage-map::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(96, 165, 250, 0.2));
    pointer-events: none;
}

/* 步骤样式 */
.step {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.step-number {
    background-color: #3b82f6;
    color: white;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 1rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-title {
    font-weight: 500;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}