/* ============================================
   动画 — 滚动淡入、打字机、光晕效果
   ============================================ */

/* === 滚动淡入动画 === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 延迟变体 */
.delay-100 {
    transition-delay: 100ms;
}

.delay-200 {
    transition-delay: 200ms;
}

.delay-300 {
    transition-delay: 300ms;
}

.delay-400 {
    transition-delay: 400ms;
}

.delay-500 {
    transition-delay: 500ms;
}

.delay-600 {
    transition-delay: 600ms;
}

.delay-700 {
    transition-delay: 700ms;
}

.delay-800 {
    transition-delay: 800ms;
}

/* === Hero 动画 === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* === 打字光标闪烁 === */
@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--accent-primary);
    margin-left: 4px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

/* === 浮动动画 === */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

@keyframes float-slow {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-8px) rotate(2deg);
    }
}

.float {
    animation: float 4s ease-in-out infinite;
}

.float-slow {
    animation: float-slow 6s ease-in-out infinite;
}

/* === 脉冲发光 === */
@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--accent-glow);
    }

    50% {
        box-shadow: 0 0 40px var(--accent-glow), 0 0 60px rgba(79, 70, 229, 0.2);
    }
}

.pulse-glow {
    animation: pulse-glow 3s ease-in-out infinite;
}

/* === 渐变流动 === */
@keyframes gradient-flow {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.gradient-animate {
    background-size: 200% 200%;
    animation: gradient-flow 6s ease infinite;
}

/* === 旋转光环 === */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* === 向下滚动指示器 === */
@keyframes scroll-bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(8px);
    }

    60% {
        transform: translateY(4px);
    }
}

.scroll-indicator {
    animation: scroll-bounce 2s ease infinite;
}

/* === 数字计数器过渡 === */
.counter {
    font-variant-numeric: tabular-nums;
}

/* === 鼠标追踪光晕 === */
.mouse-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle,
            rgba(79, 70, 229, 0.08) 0%,
            rgba(6, 182, 212, 0.04) 30%,
            transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: left 0.3s ease-out, top 0.3s ease-out;
    will-change: left, top;
}

/* === 网格背景 === */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79, 70, 229, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 70, 229, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* === Hero 背景渐变 === */
.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

/* === 粒子 Canvas 容器 === */
.particles-canvas {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

/* === 减少动效（无障碍） === */
@media (prefers-reduced-motion: reduce) {

    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        transition: none;
        opacity: 1;
        transform: none;
    }

    .float,
    .float-slow,
    .pulse-glow,
    .gradient-animate {
        animation: none;
    }

    .mouse-glow {
        display: none;
    }
}