@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

.kikaijima_unique_container {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    margin: 0 auto;
}

.kikaijima_unique_widescreen {
    position: relative;
    width: 100%;
    max-width: 1600px;
    aspect-ratio: 16/9;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.2);
}

.kikaijima_unique_background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://gigaplus.makeshop.jp/it98543/newsitefoto/kikaijima_haikei2.jpg');
    background-size: cover;
    background-position: center bottom;
    z-index: 1;
    animation: kikaijima_unique_grow 15s ease-out forwards;
    transform-origin: center bottom;
}

.kikaijima_unique_overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.5));
    z-index: 2;
    animation: kikaijima_unique_grow 15s ease-out forwards;
    transform-origin: center bottom;
}

.kikaijima_unique_textbox {
    position: relative;
    width: 90%;
    z-index: 10;
    padding: 20px 30px; 
    border-radius: 10px;
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: white;
}

.kikaijima_unique_textline {
    opacity: 0;
    transform: translateY(20px);
    position: relative;
    margin-bottom: 15px; 
    text-align: center;
    white-space: nowrap;
}

.kikaijima_unique_textline span {
    display: inline-block;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    transform: translateZ(0); 
}

.kikaijima_unique_title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #ffffff;
    position: relative;
    letter-spacing: 0.05em;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.kikaijima_unique_subtitle {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #FF8F00;
    position: relative;
    letter-spacing: 0.05em;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.kikaijima_unique_description {
    font-size: 1.5rem;
    line-height: 1.4;
    font-weight: 400;
    color: #ffffff;
    position: relative;
    letter-spacing: 0.03em;
    max-width: 90%;
    margin: 0 auto;
    white-space: normal;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.5);
}

.kikaijima_unique_highlight {
    position: absolute;
    height: 100%;
    width: 0;
    left: 0;
    top: 0;
    background-color: rgba(255, 255, 255, 0.3);
    pointer-events: none;
}

.kikaijima_unique_particle {
    position: absolute;
    background-color: rgba(139, 195, 74, 0.7);
    border-radius: 50%;
    pointer-events: none;
    z-index: 5;
}

/* アニメーション定義 */
@keyframes kikaijima_unique_grow {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.12);
    }
}

@keyframes kikaijima_unique_fadeUpIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes kikaijima_unique_highlightSweep {
    0% {
        width: 0;
        left: 0;
        opacity: 0.5;
    }
    50% {
        width: 100%;
        left: 0;
        opacity: 0.8;
    }
    100% {
        width: 0;
        left: 100%;
        opacity: 0.5;
    }
}

@keyframes kikaijima_unique_pulsate {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.02);
        opacity: 0.95;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.kikaijima_unique_pulse {
    animation: kikaijima_unique_pulsate 2s infinite ease-in-out;
}

.kikaijima_unique_highlight_text {
    color: #00BCD4;
    font-weight: 700;
}

/* レスポンシブ対応 */
@media (max-width: 1400px) {
    .kikaijima_unique_title { font-size: 2.5rem; }
    .kikaijima_unique_subtitle { font-size: 2.8rem; }
    .kikaijima_unique_description { font-size: 1.3rem; }
}

@media (max-width: 1100px) {
    .kikaijima_unique_title { font-size: 2.2rem; }
    .kikaijima_unique_subtitle { font-size: 2.5rem; }
    .kikaijima_unique_description { font-size: 1.1rem; }
}

@media (max-width: 800px) {
    .kikaijima_unique_title { font-size: 1.8rem; }
    .kikaijima_unique_subtitle { font-size: 2.1rem; }
    .kikaijima_unique_description { font-size: 1rem; }
    .kikaijima_unique_textline { 
        white-space: normal !important;
    }
    .kikaijima_unique_textbox { 
        width: 100%;
        padding: 15px; 
    }
}

@media (max-width: 600px) {
    .kikaijima_unique_title { font-size: 1.2rem; }
    .kikaijima_unique_subtitle { font-size: 1.6rem; }
    .kikaijima_unique_description { font-size: 0.9rem; }
    .kikaijima_unique_textbox { padding: 10px; }
    .kikaijima_unique_textline { margin-bottom: 10px; }
}

/* 高解像度デバイス対応 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .kikaijima_unique_textline span {
        font-weight: 400;
    }
    .kikaijima_unique_title span {
        font-weight: 700;
    }
    .kikaijima_unique_subtitle span {
        font-weight: 700;
    }
}