/* Index Page Specific Styles */

.container {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
}

/* Overlay Layer Structure */
.left-overlay-layer {
    grid-column: 1;
    grid-row: 1;
    height: fit-content;
    z-index: 20;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

.hero-image-placeholder {
    width: 122%;
    height: 500px;
    margin-top: 1rem;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: left bottom;
    display: block;
}

/* 左侧区域 */
.left-section {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: fit-content;
    z-index: 1;
}

.hero-image {
    width: 122%;
    height: 500px;
    margin-top: 1rem;
    background-color: transparent;
    border-radius: 4px;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: left bottom;
    display: block;
}


.intro-box {
    background-color: #447593;
    color: #CFD9E3;
    font-size: 1.8rem;
    font-weight: 600;
    padding: 0.2rem 0.4rem;
    line-height: 1.2;
    margin-top: 0rem;
    margin-right: -3rem;
    margin-bottom: -1rem;
    width: fit-content;
}

/* 右侧区域 */
.right-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
}

.title-block {
    background-color: #17223F;
    color: #D6B2A2;
    padding: 0.2rem 0.4rem;
    font-size: 5.5rem;
    font-weight: 900;
    text-align: right;
    width: fit-content;
    margin-left: auto;
    margin-top: 7.4rem;
    margin-bottom: 2.5rem;
    line-height: 1.2;
    transition: opacity 0.5s ease-in-out;
    border-radius: 3px;
    text-decoration: none;
    display: block;
}

.subtitle-block {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.8rem;
    margin-top: 1rem;
    transition: opacity 0.5s ease-in-out;
    border-radius: 3px;
    text-decoration: none;
}

.subtitle {
    background-color: #447593;
    color: #CFD9E3;
    padding: 0.2rem 0.5rem;
    font-size: 1.8rem;
    font-weight: 600;
    text-align: right;
    width: fit-content;
    line-height: 1.2;
    margin-top: -0.2rem;
}

.right-hero {
    position: relative;
    width: 100%;
    height: 500px;
}

.right-hero .title-block,
.right-hero .subtitle-block {
    position: relative;
    z-index: 10;
}

.right-image {
    position: absolute;
    top: 1rem;
    left: -21%;
    width: 121%;
    height: 500px;
    overflow: hidden;
    z-index: 5;
}

/* Underlay Image (rmain-0) */
.right-underlay-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: bottom center;
    z-index: -1;
    display: block;
}

.right-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: bottom center;
    display: block;
    transition: opacity 0.5s ease-in-out;
}

/* Carousel */
.carousel-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-btn {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.6);
    border: 1px solid #c1c1c1;
    cursor: pointer;
    transition: all 0.3s;
}

.carousel-btn:hover {
    background-color: rgba(23, 34, 63, 0.5);
}

.carousel-btn.active {
    background-color: #17223F;
    transform: scale(1.2);
}


.carousel-wrapper {
    display: grid;
    grid-template-areas: "stack";
    width: 100%;
    height: 100%;
}

.carousel-wrapper img {
    grid-area: stack;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: block;
    object-fit: contain;
    object-position: bottom center;
}

.carousel-wrapper img.active {
    opacity: 1;
    z-index: 1;
}

/* Footer Info */
.footer-info {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-title {
    text-align: right;
    font-size: 2rem;
    color: #17223F;
    margin-top: 0rem;
    font-weight: 900;
}

.social-links {
    display: flex;
    justify-content: flex-end;
    gap: 1.2rem;
    font-size: 1.8rem;
    color: #002b49;
    width: auto;
}

.social-links__content {
  border-top: 1px solid #999;
  margin-top: -0.5rem;
  padding-top: 0.6rem;
  display: inline-flex;
  gap: inherit;
}

/* 手机端适配 */
@media (max-width: 800px) {
    .left-overlay-layer {
        width: 100%;
        align-items: center;
    }

    .hero-image-placeholder {
        width: 100%;
        height: auto;
        aspect-ratio: 1/0.8;
    }

    .left-section {
        width: 100%;
        align-items: center;
    }

    .hero-image {
        width: 100%;
        height: auto;
        aspect-ratio: 1/0.8;
    }

    .intro-box {
        margin-right: 0;
        width: 100%;
        text-align: center;
        box-sizing: border-box;
    }

    .right-section {
        width: 100%;
        padding-top: 0.5rem;
    }

    .right-hero {
        height: 380px;
        display: block;
    }

    .right-image {
        position: absolute;
        top: -2rem;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        height: 100%;
        margin-bottom: 0;
    }

    .right-underlay-image {
        position: absolute;
        top: 2rem;
        width: 100%;
        height: 100%;
        margin-bottom: 0;
    }

    .title-block {
        margin-left: auto;
        margin-right: 0;
        margin-top: 3.2rem;
        margin-bottom: 1rem;
        font-size: 3.6rem;
        text-align: right;
    }

    .subtitle-block {
        align-items: flex-end;
        width: auto;
    }

    .subtitle {
        text-align: right;
        width: auto;
        font-size: 1.4rem;
    }

    .footer-info {
        width: 100%;
        align-items: center;
    }

    .footer-title {
        margin-left: 0;
        text-align: center;
        width: 100%;
        border-bottom: none;
    }

    .social-links {
        justify-content: center;
        width: 100%;
    }
}

/* Dark Mode Styles */
body.dark-mode .intro-box {
    background-color: #447593;
    color: #e0e0e0;
}

body.dark-mode .title-block {
    background-color: #447593;
    color: #e0e0e0;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-mode .subtitle {
    background-color: #447593;
    color: #e0e0e0;
}

body.dark-mode .footer-title {
    color: #DFDFD9;
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

body.dark-mode .social-links svg path {
    fill: #DFDFD9;
    transition: fill 0.3s;
}

body.dark-mode .social-links a:hover svg path {
    fill: #4a90e2;
}

body.dark-mode .carousel-btn {
    border-color: #666;
    background-color: rgba(255, 255, 255, 0.2);
}

body.dark-mode .carousel-btn:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

body.dark-mode .carousel-btn.active {
    background-color: #DFDFD9;
    border-color: #DFDFD9;
}