/* Intro Animation */
.intro-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    animation: introFadeOut 2.5s ease-in-out forwards;
}

.intro-text {
    font-size: 8.5rem;
    font-weight: bold;
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.loading-bar {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.loading-bar span {
    font-size: 2rem;
    opacity: 0;
    transform: scale(0.5);
    filter: blur(2px);
    animation: emojiLoad 0.3s ease-out forwards;
}

.loading-bar span:nth-child(1) { animation-delay: 0.1s; }
.loading-bar span:nth-child(2) { animation-delay: 0.2s; }
.loading-bar span:nth-child(3) { animation-delay: 0.3s; }
.loading-bar span:nth-child(4) { animation-delay: 0.4s; }
.loading-bar span:nth-child(5) { animation-delay: 0.5s; }
.loading-bar span:nth-child(6) { animation-delay: 0.6s; }
.loading-bar span:nth-child(7) { animation-delay: 0.7s; }
.loading-bar span:nth-child(8) { animation-delay: 0.8s; }

@keyframes emojiLoad {
    0% {
        opacity: 0;
        transform: scale(0.5) translateY(10px);
        filter: blur(2px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0);
    }
}

/* 添加消失动画 */
.loading-bar span {
    animation:
        emojiLoad 0.3s ease-out forwards,
        emojiUnload 0.3s ease-in forwards;
}

.loading-bar span:nth-child(1) { animation-delay: 0.1s, 1.6s; }
.loading-bar span:nth-child(2) { animation-delay: 0.2s, 1.7s; }
.loading-bar span:nth-child(3) { animation-delay: 0.3s, 1.8s; }
.loading-bar span:nth-child(4) { animation-delay: 0.4s, 1.9s; }
.loading-bar span:nth-child(5) { animation-delay: 0.5s, 2.0s; }
.loading-bar span:nth-child(6) { animation-delay: 0.6s, 2.1s; }
.loading-bar span:nth-child(7) { animation-delay: 0.7s, 2.2s; }
.loading-bar span:nth-child(8) { animation-delay: 0.8s, 2.3s; }

@keyframes emojiUnload {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0);
    }
    100% {
        opacity: 0;
        transform: scale(0.8) translateY(-10px);
        filter: blur(2px);
    }
}

.intro-text span {
    background: linear-gradient(135deg, #333, #666);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    transform: translateY(20px) scale(0.5);
    display: inline-block;
}

.intro-text span:nth-child(1) { animation: letterIn 0.4s ease-out 0.1s forwards, letterOut 0.4s ease-in 1.6s forwards; }
.intro-text span:nth-child(2) { animation: letterIn 0.4s ease-out 0.2s forwards, letterOut 0.4s ease-in 1.7s forwards; }
.intro-text span:nth-child(3) { animation: letterIn 0.4s ease-out 0.3s forwards, letterOut 0.4s ease-in 1.8s forwards; }
.intro-text span:nth-child(4) { animation: letterIn 0.4s ease-out 0.4s forwards, letterOut 0.4s ease-in 1.9s forwards; }
.intro-text span:nth-child(5) { animation: letterIn 0.4s ease-out 0.5s forwards, letterOut 0.4s ease-in 2.0s forwards; }
.intro-text span:nth-child(6) { animation: letterIn 0.4s ease-out 0.6s forwards, letterOut 0.4s ease-in 2.1s forwards; }
.intro-text span:nth-child(7) { animation: letterIn 0.4s ease-out 0.7s forwards, letterOut 0.4s ease-in 2.2s forwards; }
.intro-text span:nth-child(8) { animation: letterIn 0.4s ease-out 0.8s forwards, letterOut 0.4s ease-in 2.3s forwards; }
.intro-text span:nth-child(9) { animation: letterIn 0.4s ease-out 0.9s forwards, letterOut 0.4s ease-in 2.3s forwards; }
.intro-text span:nth-child(10) { animation: letterIn 0.4s ease-out 1.0s forwards, letterOut 0.4s ease-in 2.3s forwards; }
.intro-text span:nth-child(11) { animation: letterIn 0.4s ease-out 1.1s forwards, letterOut 0.4s ease-in 2.3s forwards; }

@keyframes letterIn {
    0% {
        opacity: 0;
        transform: translateY(20px) scale(0.5);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes letterOut {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-20px) scale(0.8);
    }
}

@keyframes introFadeOut {
    0%, 80% {
        opacity: 1;
        visibility: visible;
    }
    100% {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }
}

@keyframes textReveal {
    0% {
        opacity: 0;
        transform: scale(0.5) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes textGlow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(51, 51, 51, 0.5);
    }
    50% {
        text-shadow: 0 0 20px rgba(51, 51, 51, 0.8);
    }
}

@keyframes textFadeOut {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(1.2) translateY(-20px);
    }
}

/* Hide main content initially */
body > *:not(.intro-animation) {
    opacity: 0;
    animation: mainContentFade 1s ease-out 2.5s forwards;
}

@keyframes mainContentFade {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@font-face {
    font-family: Millik;
    font-weight: 700;
    src: url(assets/font/Millik.ttf) format("truetype");
    text-rendering: optimizeLegibility;
}

:root {
    --post-spacing: 2vw;
    --post-size: 30vw;
    --mask-size: 100vw;
}

* {
    padding: 0;
    margin: 0;
    font-family: Millik, Arial, sans-serif;
    font-size: 62.5%;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.65));
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
}

.header {
    padding: 20px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav {
    margin-bottom: 20px;
}

.nav-link {
    display: inline-block;
    color: #171717;
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid rgba(0, 0, 0, 0.3);
    border-radius: 25px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.2));
}

.nav-link:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.3));
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.title {
    font-size: 4rem;
    color: #333;
    margin-bottom: 2rem;
    text-align: center;
    margin: 0;
}

.title p {
    font-size: 4rem;
    font-weight: 800;
    white-space: nowrap;
}

#banner {
    overflow: hidden;
    position: relative;
    width: 100vw;
    height: calc(var(--post-size) / 0.72);
    -webkit-mask: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNDQwIiBoZWlnaHQ9IjUwMCIgdmlld0JveD0iMCAwIDE0NDAgNTAwIiBpZD0iaiI+CiAgPHBhdGggZmlsbD0icmdiKDIwMCwyMDAsMjAwKSIgZmlsbC1ydWxlPSJldmVub2RkIiBkPSJNMCAwczI3NS4wNCAxMDAgNzIwIDEwMFMxNDQwIDAgMTQ0MCAwdjUwMHMtMjc1LjA0LTEwMC03MjAtMTAwUzAgNTAwIDAgNTAwVjB6Ii8+Cjwvc3ZnPgo=);
    mask: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNDQwIiBoZWlnaHQ9IjUwMCIgdmlld0JveD0iMCAwIDE0NDAgNTAwIiBpZD0iaiI+CiAgPHBhdGggZmlsbD0icmdiKDIwMCwyMDAsMjAwKSIgZmlsbC1ydWxlPSJldmVub2RkIiBkPSJNMCAwczI3NS4wNCAxMDAgNzIwIDEwMFMxNDQwIDAgMTQ0MCAwdjUwMHMtMjc1LjA0LTEwMC03MjAtMTAwUzAgNTAwIDAgNTAwVjB6Ii8+Cjwvc3ZnPgo=);
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-size: var(--mask-size);
    mask-size: var(--mask-size);
    position: relative;
    top: 50px;
}

#banner .img-wrapper {
    display: flex;
    position: absolute;
    width: 100%;
    height: calc(var(--post-size) / 0.72);
    animation: admission 1.5s;
}

#banner .img-wrapper .img-box {
    height: 100%;
    display: inline-block;
    margin-right: var(--post-spacing);
    position: relative;
    cursor: pointer;
}

#banner .img-wrapper .img-box img {
    width: var(--post-size);
    height: 100%;
    object-position: center;
    object-fit: cover;
}

#banner .img-wrapper .img-box:last-child {
    transform: translate(-160.68vw, 0);
}

.img-list {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    will-change: transform;
    touch-action: pan-x;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    transform: translate(13.39vw, 0);
}

.img-wrapper {
    cursor: grab;
}

.img-wrapper:active {
    cursor: grabbing;
}

@keyframes admission {
    0% {
        transform: translate(140vw, 0);
    }
    100% {
        transform: translate(13.39vw, 0);
    }
}