/* --- Loading Screen Styles --- */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, var(--accent-blue) 0%, rgb(26, 241, 177) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999999;
    /* 最前面 */
    transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.8s;
}

.loader.is-hidden {
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    color: #fff;
}

.loader-logo {
    font-family: var(--font-mincho);
    font-size: clamp(40px, 8vw, 80px);
    font-weight: 700;
    letter-spacing: 0.3em;
    margin: 0;
    opacity: 0;
    transform: translateY(20px);
    animation: loader-reveal 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.loader-sub {
    font-family: var(--font-mincho);
    font-size: clamp(14px, 2vw, 20px);
    letter-spacing: 0.15em;
    margin-top: 10px;
    opacity: 0;
    animation: loader-reveal 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.3s forwards;
}

@keyframes loader-reveal {
    0% {
        opacity: 0;
        transform: translateY(20px);
        filter: blur(10px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}