/**
 * 动画效果样式文件
 * 包含网站的各种动画效果
 */

/* 动画效果 */

/* 页面加载动画 */
body {
    opacity: 1;
    transition: opacity 0.5s ease;
}

body.page-loaded {
    opacity: 1;
}

body.fully-loaded .preloader {
    opacity: 0;
    visibility: hidden;
}

/* 头部动画 */
header {
    transform: translateY(-10px);
    transition: opacity 0.5s ease, transform 0.5s ease, background-color 0.3s ease;
}

header.animate-header {
    opacity: 1;
    transform: translateY(0);
}

/* 英雄区域动画 */
.hero-section {
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-section.animate-hero {
    opacity: 1;
}

/* 网格项动画 */
.grid-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease, box-shadow 0.3s ease;
}

.grid-item.animate-grid-item {
    opacity: 1;
    transform: translateY(0);
}

/* 特性项动画 */
.feature-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease, box-shadow 0.3s ease;
}

.feature-item.animate-feature {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动动画基础样式 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 错开延迟动画 */
.animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }
.animate-on-scroll:nth-child(6) { transition-delay: 0.5s; }
.animate-on-scroll:nth-child(7) { transition-delay: 0.6s; }
.animate-on-scroll:nth-child(8) { transition-delay: 0.7s; }

/* 特殊动画 - 从左侧进入 */
.animate-from-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-from-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 特殊动画 - 从右侧进入 */
.animate-from-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-from-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* 特殊动画 - 淡入 */
.animate-fade-in {
    opacity: 0;
    transition: opacity 1.2s ease;
}

.animate-fade-in.visible {
    opacity: 1;
}

/* 菜单过渡动画 */
.main-nav {
    transition: right 0.3s ease-in-out;
}

/* 移动端菜单切换按钮动画 - 改进版 */
.mobile-menu-toggle {
    cursor: pointer;
    z-index: 101;
    transition: all 0.3s ease-in-out;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: #fff;
    border-radius: 3px;
    transition: all 0.3s ease-in-out;
}

/* 移动端菜单切换按钮激活状态 - X形状 */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* 菜单项进入动画 */
@keyframes menuItemFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.menu-item-animation {
    animation: menuItemFadeIn 0.5s ease forwards;
}

/* 菜单展开背景动画 */
@keyframes menuBgFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.menu-bg-animation {
    animation: menuBgFadeIn 0.5s ease forwards;
}

/* 头部导航栏过渡效果 */
header {
    transition: background-color 0.3s ease;
}

/* 悬停动画效果 */
.hover-scale {
    transition: transform 0.3s ease;
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.hover-bright {
    transition: filter 0.3s ease;
}

.hover-bright:hover {
    filter: brightness(1.1);
}

/* 按钮动画 */
.button, button {
    transition: all 0.3s ease;
}

.button:hover, button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.button:active, button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 链接悬停动画 */
.animated-link {
    position: relative;
    transition: color 0.3s ease;
}

.animated-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: currentColor;
    transition: width 0.3s ease;
}

.animated-link:hover::after {
    width: 100%;
}

/* 图片悬停效果 */
.img-hover {
    overflow: hidden;
}

.img-hover img {
    transition: transform 0.5s ease;
}

.img-hover:hover img {
    transform: scale(1.05);
}

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

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

/* 淡入动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 从下方淡入 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 从上方淡入 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 从左侧淡入 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 从右侧淡入 */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 缩放淡入 */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 应用动画的辅助类 */
.fade-in { animation: fadeIn 1s ease forwards; }
.fade-in-up { animation: fadeInUp 1s ease forwards; }
.fade-in-down { animation: fadeInDown 1s ease forwards; }
.fade-in-left { animation: fadeInLeft 1s ease forwards; }
.fade-in-right { animation: fadeInRight 1s ease forwards; }
.zoom-in { animation: zoomIn 1s ease forwards; }

/* 动画延迟类 */
.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; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-900 { animation-delay: 0.9s; }
.delay-1000 { animation-delay: 1s; }

/* 移动端动画优化 */
@media (max-width: 768px) {
    /* 减少移动端动画效果，提高性能 */
    .animate-on-scroll {
        transition-duration: 0.5s;
    }
    
    /* 减少移动端的动画延迟 */
    .animate-on-scroll:nth-child(n) {
        transition-delay: 0.05s;
    }
    
    /* 减少移动端悬停效果的强度 */
    .hover-lift:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    
    .card-hover:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }
}