/* ========================================
   金率格练字培训官网 - 动画样式
   ======================================== */

/* 滚动显示动画 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.8s ease;
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* 延迟动画 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }
.delay-7 { transition-delay: 0.7s; }
.delay-8 { transition-delay: 0.8s; }

/* 数字计数动画 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stat-number {
    animation: countUp 0.6s ease forwards;
}

/* 卡片悬停效果 */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-rotate {
    transition: transform 0.3s ease;
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* 图标悬停动画 */
.icon-pulse:hover i {
    animation: iconPulse 0.6s ease;
}

@keyframes iconPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* 按钮点击效果 */
.btn-click {
    position: relative;
    overflow: hidden;
}

.btn-click::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-click:active::after {
    width: 300px;
    height: 300px;
}

/* 渐变背景动画 */
.gradient-animate {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 闪烁效果 */
.shine {
    position: relative;
    overflow: hidden;
}

.shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    20% { left: 100%; }
    100% { left: 100%; }
}

/* 打字机效果 */
.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--primary-green);
    white-space: nowrap;
    animation: typing 3s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--primary-green); }
}

/* 加载动画 */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(15, 185, 60, 0.2);
    border-top-color: var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 弹跳动画 */
.bounce {
    animation: bounce 2s ease infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* 摇摆动画 */
.swing {
    animation: swing 2s ease infinite;
    transform-origin: top center;
}

@keyframes swing {
    20% { transform: rotate(15deg); }
    40% { transform: rotate(-10deg); }
    60% { transform: rotate(5deg); }
    80% { transform: rotate(-5deg); }
    100% { transform: rotate(0deg); }
}

/* 脉冲边框 */
.pulse-border {
    position: relative;
}

.pulse-border::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--primary-green);
    border-radius: inherit;
    animation: pulseBorder 2s ease infinite;
}

@keyframes pulseBorder {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.1);
        opacity: 0;
    }
}

/* 浮动动画 - 不同延迟 */
.float-delay-1 { animation: float 3s ease-in-out infinite; }
.float-delay-2 { animation: float 3s ease-in-out 0.5s infinite; }
.float-delay-3 { animation: float 3s ease-in-out 1s infinite; }
.float-delay-4 { animation: float 3s ease-in-out 1.5s infinite; }

/* 线条绘制动画 */
.draw-line {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: drawLine 2s ease forwards;
}

@keyframes drawLine {
    to { stroke-dashoffset: 0; }
}

/* 淡入上移动画 - 交错 */
.stagger-fade-in > * {
    opacity: 0;
    transform: translateY(20px);
    animation: staggerFadeIn 0.6s ease forwards;
}

.stagger-fade-in > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-fade-in > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-fade-in > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-fade-in > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-fade-in > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-fade-in > *:nth-child(6) { animation-delay: 0.6s; }
.stagger-fade-in > *:nth-child(7) { animation-delay: 0.7s; }
.stagger-fade-in > *:nth-child(8) { animation-delay: 0.8s; }

@keyframes staggerFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 圆形扩散动画 */
.ripple {
    position: relative;
}

.ripple::before,
.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-green);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ripple 2s ease-out infinite;
}

.ripple::after {
    animation-delay: 1s;
}

@keyframes ripple {
    0% {
        width: 100%;
        height: 100%;
        opacity: 1;
    }
    100% {
        width: 150%;
        height: 150%;
        opacity: 0;
    }
}

/* 页面加载动画 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    animation: loaderPulse 1.5s ease infinite;
}

@keyframes loaderPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.9);
        opacity: 0.7;
    }
}

/* 导航栏滚动效果 */
.header-hidden {
    transform: translateY(-100%);
}

.header-visible {
    transform: translateY(0);
}

/* 标签切换动画 */
.tab-fade-in {
    animation: tabFadeIn 0.4s ease;
}

@keyframes tabFadeIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 表单聚焦动画 */
.input-focus {
    transition: all 0.3s ease;
}

.input-focus:focus {
    transform: scale(1.02);
}

/* 成功状态动画 */
.success-check {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    animation: successPop 0.5s ease;
}

@keyframes successPop {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* 3D翻转效果 */
.flip-card {
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
}

.flip-card-back {
    transform: rotateY(180deg);
}

/* 进度条动画 */
.progress-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0;
    transition: width 1.5s ease;
}

.progress-fill.animate {
    width: var(--progress);
}

/* 视差滚动效果 */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 768px) {
    .parallax {
        background-attachment: scroll;
    }
}