/* 货优达全电物流 - fullPage.js 版本完整样式 */

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* fullPage.js 自定义样式 */
#fp-nav ul li a span,
.fp-slidesNav ul li a span {
    background: #3b82f6;
    width: 8px;
    height: 8px;
    margin: -4px 0 0 -4px;
}

#fp-nav ul li a.active span,
.fp-slidesNav ul li a.active span,
#fp-nav ul li:hover a.active span,
.fp-slidesNav ul li:hover a.active span {
    background: #1d4ed8;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
}

#fp-nav ul li .fp-tooltip {
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 14px;
    color: #374151;
}

/* 自定义导航栏 */
.custom-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.custom-nav:hover {
    background: rgba(255, 255, 255, 0.98);
}

.nav-item {
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 15px;
    user-select: none;
    position: relative;
}

.nav-item:hover {
    background-color: #eff6ff;
    color: #3b82f6;
    transform: translateY(-1px);
}

.nav-item.active {
    background-color: #3b82f6;
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #3b82f6;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-item:hover::after {
    width: 80%;
}

.nav-item.active::after {
    width: 0;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

/* 延迟动画 */
.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; }

/* 卡片悬停效果 */
.hover-card {
    transition: all 0.3s ease;
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: white;
    color: #3b82f6;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid #3b82f6;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
}

/* 渐变背景 */
.gradient-bg-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-bg-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* 文字效果 */
.text-gradient {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .custom-nav {
        padding: 8px 0;
    }
    
    .custom-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
        padding: 0 16px;
    }
    
    .nav-item {
        padding: 6px 12px;
        font-size: 14px;
        margin: 2px;
    }
    
    .nav-item::after {
        display: none;
    }
    
    /* 移动端优化字体大小 */
    h1 { font-size: 2.5rem !important; }
    h2 { font-size: 2rem !important; }
    h3 { font-size: 1.5rem !important; }
    
    .text-5xl { font-size: 2.5rem !important; }
    .text-4xl { font-size: 2rem !important; }
    .text-3xl { font-size: 1.5rem !important; }
    .text-2xl { font-size: 1.25rem !important; }
    .text-xl { font-size: 1.125rem !important; }
}

@media (max-width: 480px) {
    .nav-item {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    h1 { font-size: 2rem !important; }
    h2 { font-size: 1.5rem !important; }
    
    .text-5xl { font-size: 2rem !important; }
    .text-4xl { font-size: 1.5rem !important; }
    .text-3xl { font-size: 1.25rem !important; }
}

/* 高分辨率屏幕优化 */
@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
}

/* 打印样式 */
@media print {
    .custom-nav,
    #fp-nav,
    .fp-slidesNav {
        display: none !important;
    }
    
    .section {
        page-break-inside: avoid;
        page-break-after: always;
    }
    
    .section:last-child {
        page-break-after: avoid;
    }
}

/* 无障碍访问 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .custom-nav {
        background: rgba(17, 24, 39, 0.95);
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    .nav-item {
        color: #f3f4f6;
    }
    
    .nav-item:hover {
        background-color: rgba(59, 130, 246, 0.2);
        color: #93c5fd;
    }
}