/* ========================================
   云靖网络 - 高级动画效果
   添加高级动画和交互效果
   ======================================== */

/* ========================================
   1. 卡片高级悬停效果
   ======================================== */

/* 悬停发光边框效果 */
.card-glow-hover {
    position: relative;
    overflow: hidden;
}

.card-glow-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.card-glow-hover:hover::before {
    left: 100%;
}

/* 悬停3D翻转效果 */
.card-3d-hover {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.card-3d-hover:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 30px rgba(220, 38, 38, 0.1);
}

/* 悬停缩放遮罩效果 */
.card-scale-mask {
    overflow: hidden;
}

.card-scale-mask .card-image {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-scale-mask:hover .card-image {
    transform: scale(1.1);
}

/* 悬停文字上浮效果 */
.card-text-slide {
    position: relative;
    overflow: hidden;
}

.card-text-slide .card-content {
    transition: transform 0.4s ease;
}

.card-text-slide:hover .card-content {
    transform: translateY(-5px);
}

/* 悬停边框流动效果 */
.card-border-flow {
    position: relative;
}

.card-border-flow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(
        45deg,
        var(--primary-color),
        var(--secondary-color),
        var(--primary-color)
    );
    background-size: 400% 400%;
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    animation: border-flow 3s ease infinite;
}

.card-border-flow:hover::before {
    opacity: 1;
}

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

/* ========================================
   2. 按钮高级效果
   ======================================== */

/* 按钮悬停波纹效果 */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::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, opacity 0.6s ease;
    opacity: 0;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
    opacity: 1;
    transition: width 0s, height 0s, opacity 0s;
}

/* 按钮悬停箭头动画 */
.btn-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-arrow .arrow-icon {
    transition: transform 0.3s ease;
}

.btn-arrow:hover .arrow-icon {
    transform: translateX(5px);
}

/* 按钮发光效果 */
.btn-glow {
    position: relative;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(
        45deg,
        var(--primary-color),
        var(--secondary-color),
        var(--primary-color)
    );
    border-radius: inherit;
    z-index: -1;
    filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-glow:hover::before {
    opacity: 0.5;
}

/* 按钮填充动画 */
.btn-fill {
    position: relative;
    overflow: hidden;
}

.btn-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s ease;
}

.btn-fill:hover::before {
    left: 100%;
}

/* ========================================
   3. 数字滚动动画
   ======================================== */
.number-scroll {
    display: inline-block;
    transition: all 0.3s ease;
}

.number-scroll.animating {
    transform: translateY(-100%);
    opacity: 0;
}

/* ========================================
   4. 渐入显现动画
   ======================================== */

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

.animate-fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.animate-fade-in-down {
    animation: fadeInDown 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.animate-fade-in-left {
    animation: fadeInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.animate-fade-in-right {
    animation: fadeInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.animate-fade-in-scale {
    animation: fadeInScale 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 弹跳淡入 */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-bounce-in {
    animation: bounceIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 旋转淡入 */
@keyframes fadeInRotate {
    from {
        opacity: 0;
        transform: rotate(-10deg) scale(0.9);
    }
    to {
        opacity: 1;
        transform: rotate(0) scale(1);
    }
}

.animate-fade-in-rotate {
    animation: fadeInRotate 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* ========================================
   5. 背景动画效果
   ======================================== */

/* 网格背景动画 */
.bg-grid-animate {
    background-image: 
        linear-gradient(rgba(220, 38, 38, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(220, 38, 38, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% { transform: translateY(0); }
    100% { transform: translateY(50px); }
}

/* 渐变背景动画 */
.bg-gradient-animate {
    background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
}

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

/* 脉动背景 */
.bg-pulse {
    animation: bg-pulse 2s ease-in-out infinite;
}

@keyframes bg-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 发光球动画 */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.glow-orb.orb-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.3) 0%, rgba(249, 115, 22, 0.2) 100%);
    animation: orb-float-1 8s ease-in-out infinite;
}

.glow-orb.orb-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.3) 0%, rgba(220, 38, 38, 0.2) 100%);
    animation: orb-float-2 10s ease-in-out infinite;
}

@keyframes orb-float-1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

@keyframes orb-float-2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-30px, 30px) scale(1.1); }
}

/* ========================================
   6. 边框和分割线动画
   ======================================== */

/* 动态边框线 */
.border-animate {
    position: relative;
}

.border-animate::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.4s ease;
}

.border-animate:hover::after {
    width: 100%;
}

/* 底部线条流动 */
.border-flow {
    position: relative;
}

.border-flow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--primary-color),
        transparent
    );
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.border-flow:hover::after {
    transform: scaleX(1);
}

/* 四角装饰动画 */
.corner-decor {
    position: relative;
}

.corner-decor::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--primary-color);
    border-left: 2px solid var(--primary-color);
    transition: width 0.3s ease, height 0.3s ease;
}

.corner-decor::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-bottom: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
    transition: width 0.3s ease, height 0.3s ease;
}

.corner-decor:hover::before,
.corner-decor:hover::after {
    width: 100%;
    height: 100%;
}

/* ========================================
   7. 图片效果
   ======================================== */

/* 图片放大 */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.img-zoom:hover img {
    transform: scale(1.1);
}

/* 图片模糊 */
.img-blur {
    filter: blur(0);
    transition: filter 0.3s ease;
}

.img-blur:hover {
    filter: blur(3px);
}

/* 图片变灰 */
.img-grayscale {
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.img-grayscale:hover {
    filter: grayscale(0%);
}

/* 图片微光 */
.img-shine {
    position: relative;
    overflow: hidden;
}

.img-shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transform: skewX(-25deg);
    transition: left 0.5s ease;
}

.img-shine:hover::after {
    left: 150%;
}

/* ========================================
   8. 文字动画
   ======================================== */

/* 文字发光 */
.text-glow {
    transition: text-shadow 0.3s ease;
}

.text-glow:hover {
    text-shadow: 
        0 0 10px rgba(220, 38, 38, 0.5),
        0 0 20px rgba(220, 38, 38, 0.3),
        0 0 30px rgba(220, 38, 38, 0.2);
}

/* 文字渐变动画 */
.text-gradient-animate {
    background: linear-gradient(
        -45deg,
        var(--primary-color),
        var(--secondary-color),
        var(--primary-color)
    );
    background-size: 400% 400%;
    -webkit-background    -webkit-text-fill-color: transparent-clip: text;
;
    background-clip: text;
    animation: text-gradient 3s ease infinite;
}

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

/* 文字下划线动画 */
.text-underline {
    position: relative;
}

.text-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.text-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* 文字抖动 */
@keyframes text-shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-2px); }
    20%, 40%, 60%, 80% { transform: translateX(2px); }
}

.animate-text-shake:hover {
    animation: text-shake 0.5s ease;
}

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

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

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

/* 文字逐字显示 */
.text-reveal {
    opacity: 0;
    transform: translateY(20px);
}

.text-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   9. 鼠标跟随效果
   ======================================== */

/* 鼠标跟随点 */
.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
    mix-blend-mode: difference;
}

/* 鼠标跟随圆圈 */
.cursor-circle {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease, border-color 0.3s ease;
    mix-blend-mode: difference;
}

.cursor-circle.hover {
    width: 60px;
    height: 60px;
    border-color: var(--secondary-color);
}

/* ========================================
   10. 加载和进度动画
   ======================================== */

/* 加载旋转 */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* 加载跳动 */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.animate-bounce {
    animation: bounce 1s ease infinite;
}

/* 加载点 */
@keyframes dot-flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.animate-dot-flash {
    animation: dot-flash 1s ease infinite;
}

/* 进度条流动 */
@keyframes progress-flow {
    0% { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

.progress-animate {
    background: linear-gradient(
        90deg,
        var(--primary-color),
        var(--secondary-color),
        var(--primary-color)
    );
    background-size: 200% 100%;
    animation: progress-flow 2s linear infinite;
}

/* 圆环进度 */
.ring-progress {
    position: relative;
}

.ring-progress svg {
    transform: rotate(-90deg);
}

.ring-progress circle {
    transition: stroke-dashoffset 1s ease;
}

/* ========================================
   11. 卡片交错动画
   ======================================== */

/* 交错淡入 - 延迟动画 */
.stagger-fade-in > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-fade-in > *.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 交错缩放 */
.stagger-scale > * {
    opacity: 0;
    transform: scale(0.9);
}

.stagger-scale > *.visible {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-scale > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-scale > *:nth-child(2) { transition-delay: 0.15s; }
.stagger-scale > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-scale > *:nth-child(4) { transition-delay: 0.25s; }
.stagger-scale > *:nth-child(5) { transition-delay: 0.3s; }
.stagger-scale > *:nth-child(6) { transition-delay: 0.35s; }

/* 交错左入 */
.stagger-left > * {
    opacity: 0;
    transform: translateX(-30px);
}

.stagger-left > *.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-left > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-left > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-left > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-left > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-left > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-left > *:nth-child(6) { transition-delay: 0.6s; }

/* 交错右入 */
.stagger-right > * {
    opacity: 0;
    transform: translateX(30px);
}

.stagger-right > *.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.stagger-right > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-right > *:nth-child(2) { transition-delay: 0.15s; }
.stagger-right > *:nth-child(3) { transition-delay: 0.2s; }
.stagger-right > *:nth-child(4) { transition-delay: 0.25s; }
.stagger-right > *:nth-child(5) { transition-delay: 0.3s; }
.stagger-right > *:nth-child(6) { transition-delay: 0.35s; }

/* ========================================
   12. 悬浮和装饰动画
   ======================================== */

/* 悬浮效果 */
.float-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* 悬浮反向 */
.float-reverse {
    animation: float-reverse 6s ease-in-out infinite;
}

@keyframes float-reverse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(15px); }
}

/* 摇摆效果 */
@keyframes sway {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

.animate-sway {
    animation: sway 2s ease-in-out infinite;
    transform-origin: center;
}

/* 旋转悬浮 */
@keyframes spin-float {
    0% { transform: rotate(0deg) translateY(0); }
    50% { transform: rotate(180deg) translateY(-10px); }
    100% { transform: rotate(360deg) translateY(0); }
}

.animate-spin-float {
    animation: spin-float 4s linear infinite;
}

/* 脉冲发光 */
@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 
            0 0 20px rgba(220, 38, 38, 0.3),
            0 0 40px rgba(220, 38, 38, 0.1);
    }
    50% { 
        box-shadow: 
            0 0 40px rgba(220, 38, 38, 0.5),
            0 0 60px rgba(220, 38, 38, 0.2);
    }
}

.animate-pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* 圆环扩散 */
@keyframes ring-expand {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.animate-ring-expand {
    animation: ring-expand 2s ease-out infinite;
}

/* 星星闪烁 */
@keyframes star-twinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.animate-star-twinkle {
    animation: star-twinkle 1.5s ease-in-out infinite;
}

/* ========================================
   13. 模态框和弹窗动画
   ======================================== */

/* 淡入弹窗 */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.animate-modal-fade-in {
    animation: modalFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 滑入弹窗 */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-modal-slide-in {
    animation: modalSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 缩放出现 */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-zoom-in {
    animation: zoomIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 弹跳出现 */
@keyframes bounceInUp {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    60% {
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-bounce-in-up {
    animation: bounceInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* ========================================
   14. 页面滚动动画
   ======================================== */

/* 滚动视差效果 */
.parallax {
    transform: translateZ(0);
    will-change: transform;
}

/* 滚动渐隐 */
.scroll-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 滚动缩放 */
.scroll-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* 滚动左入 */
.scroll-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 滚动右入 */
.scroll-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========================================
   15. 高级装饰动画
   ======================================== */

/* 旋转圆环 */
@keyframes rotate-ring {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-rotate {
    animation: rotate-ring 10s linear infinite;
}

.animate-rotate-reverse {
    animation: rotate-ring 10s linear infinite reverse;
}

/* 多重圆环 */
.ring-set {
    position: relative;
}

.ring-set .ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.ring-set .ring:nth-child(1) {
    width: 200px;
    height: 200px;
    animation: rotate-ring 15s linear infinite;
}

.ring-set .ring:nth-child(2) {
    width: 250px;
    height: 250px;
    animation: rotate-ring 20s linear infinite reverse;
}

.ring-set .ring:nth-child(3) {
    width: 300px;
    height: 300px;
    animation: rotate-ring 25s linear infinite;
}

/* 点阵背景 */
.dot-matrix {
    background-image: radial-gradient(
        rgba(220, 38, 38, 0.15) 1px,
        transparent 1px
    );
    background-size: 20px 20px;
}

/* 线条流动 */
.line-flow {
    position: relative;
    overflow: hidden;
}

.line-flow::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -100%;
    width: 200%;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--primary-color),
        transparent
    );
    animation: line-move 3s linear infinite;
}

@keyframes line-move {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 网格3D效果 */
.grid-3d {
    transform-style: preserve-3d;
    transform: perspective(1000px) rotateX(60deg);
    animation: grid-3d-move 10s linear infinite;
}

@keyframes grid-3d-move {
    0% { transform: perspective(1000px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(1000px) rotateX(60deg) translateY(50px); }
}

/* ========================================
   16. 响应式动画
   ======================================== */

@media (max-width: 768px) {
    .animate-fade-in-up,
    .animate-fade-in-down,
    .animate-fade-in-left,
    .animate-fade-in-right,
    .animate-fade-in-scale {
        animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    }
    
    .cursor-dot,
    .cursor-circle {
        display: none;
    }
}

/* ========================================
   17. 实用工具类
   ======================================== */

/* 延迟动画 */
.animation-delay-100 { animation-delay: 0.1s; }
.animation-delay-200 { animation-delay: 0.2s; }
.animation-delay-300 { animation-delay: 0.3s; }
.animation-delay-400 { animation-delay: 0.4s; }
.animation-delay-500 { animation-delay: 0.5s; }
.animation-delay-600 { animation-delay: 0.6s; }
.animation-delay-700 { animation-delay: 0.7s; }
.animation-delay-800 { animation-delay: 0.8s; }
.animation-delay-900 { animation-delay: 0.9s; }
.animation-delay-1000 { animation-delay: 1s; }

/* 动画持续时间 */
.animation-fast { animation-duration: 0.3s; }
.animation-normal { animation-duration: 0.5s; }
.animation-slow { animation-duration: 0.8s; }
.animation-very-slow { animation-duration: 1.2s; }

/* 动画速度曲线 */
.animation-ease-linear { animation-timing-function: linear; }
.animation-ease-in { animation-timing-function: cubic-bezier(0.4, 0, 1, 1); }
.animation-ease-out { animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.animation-ease-in-out { animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }

/* 动画无限循环 */
.animation-infinite { animation-iteration-count: infinite; }

/* 动画暂停 */
.animation-paused { animation-play-state: paused; }
.animation-running { animation-play-state: running; }

/* 悬停时运行动画 */
.hover-animate:hover {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}