/* 佰豪汇PARTY KTV - 动画样式 */

/* ==================== 基础动画 ==================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInDown {
    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);
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

/* ==================== 微交互 ==================== */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(var(--color-accent-rgb), 0.3);
    }
    50% {
        box-shadow: 0 0 20px rgba(var(--color-accent-rgb), 0.5);
    }
}

@keyframes borderGlow {
    0%, 100% {
        border-color: rgba(var(--color-accent-rgb), 0.2);
    }
    50% {
        border-color: rgba(var(--color-accent-rgb), 0.5);
    }
}

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

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

.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }
.animate-delay-5 { transition-delay: 0.5s; }

/* ==================== 页面过渡 ==================== */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    z-index: 9999;
    pointer-events: none;
}

.page-transition.entering {
    animation: pageEnter 0.5s ease forwards;
}

.page-transition.leaving {
    animation: pageLeave 0.5s ease forwards;
}

@keyframes pageEnter {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes pageLeave {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(100%);
    }
}

/* ==================== 加载动画 ==================== */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-secondary) 0%,
        var(--color-bg-tertiary) 50%,
        var(--color-bg-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease infinite;
    border-radius: var(--radius-md);
}

/* ==================== 鼠标跟随效果 ==================== */
.mouse-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.1s ease, opacity 0.3s ease;
    mix-blend-mode: difference;
}

.mouse-follower.hovering {
    transform: scale(2);
    opacity: 0.5;
}

/* ==================== 磁性按钮 ==================== */
.magnetic-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.magnetic-button-content {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==================== 文字动画 ==================== */
.text-reveal {
    overflow: hidden;
}

.text-reveal-inner {
    display: inline-block;
    animation: textReveal 0.8s ease forwards;
}

@keyframes textReveal {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.text-scramble {
    display: inline-block;
}

/* ==================== 图片动画 ==================== */
.image-reveal {
    clip-path: inset(0 100% 0 0);
    transition: clip-path 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-reveal.revealed {
    clip-path: inset(0 0 0 0);
}

.image-parallax {
    transition: transform 0.1s ease-out;
}

/* ==================== 导航动画 ==================== */
.nav-link {
    position: relative;
    line-height: 1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ==================== 卡片动画 ==================== */
.card-hover {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ==================== 粒子效果 ==================== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 15s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ==================== 滚动进度条 ==================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--color-accent);
    z-index: 9999;
    transition: width 0.1s ease;
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-bg-primary);
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ==================== 光标效果 ==================== */
.cursor-blend {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(
        circle,
        rgba(var(--color-accent-rgb), 0.1) 0%,
        transparent 70%
    );
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
}

/* ==================== 文字渐变 ==================== */
.gradient-text {
    background: linear-gradient(135deg, var(--color-accent), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== 分割线动画 ==================== */
.animated-line {
    width: 60px;
    height: 2px;
    background: var(--color-accent);
    position: relative;
    overflow: hidden;
}

.animated-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.8),
        transparent
    );
    animation: lineShine 2s ease infinite;
}

@keyframes lineShine {
    to { left: 100%; }
}

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

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(var(--color-accent-rgb), 0.3);
}

/* ==================== 加载状态 ==================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-logo {
    animation: pulse 1.5s ease infinite;
}

/* ==================== 响应式动画调整 ==================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .mouse-follower,
    .particles,
    .cursor-blend {
        display: none;
    }
}

@media (max-width: 768px) {
    .mouse-follower,
    .cursor-blend {
        display: none;
    }

    .back-to-top {
        display: none !important;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}