/* ========== about-us 页面 Banner ========== */
.about-banner {
    position: relative;
    width: 100%;
    height: 80vh;
    min-height: 750px;
    overflow: hidden;
}

/* 背景视频 */
.about-banner-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.about-banner-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 蒙版 */
.about-banner .background-overlay {
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: 100%;
    background: #883E74;
    opacity: 0.7;
    transition: background 0.3s, border-radius 0.3s, opacity 0.3s;
    z-index: 2;
}

/* 内容区域 */
.about-banner-content {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 20px;
    box-sizing: border-box;
}

.about-banner-content .container {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
}

.about-banner-content .left {
    max-width: 700px;
    animation: fadeInLeft 1s ease-out;
}

.about-banner-content .title h1 {
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 20px;
    text-transform: capitalize;
}

.about-banner-content .description p {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #fff;
    opacity: 0.95;
    margin: 0;
}

/* 底部波浪形状 - 复用已有样式 */
.about-banner .shape {
    transform: rotate(180deg);
    direction: ltr;
    left: 0;
    line-height: 0;
    overflow: hidden;
    position: absolute;
    width: 100%;
    bottom: -1px;
    z-index: 4;
}

.about-banner .shape svg {
    height: 60px;
    width: 100%;
}

.about-banner .shape-fill {
    fill: #fff;
}

/* ========== about-banner 响应式 ========== */
@media (max-width: 992px) {
    .about-banner {
        height: auto;
        min-height: 400px;
    }

    .about-banner-content {
        padding: 60px 20px;
    }

    .about-banner-content .title h1 {
        font-size: 2.5rem;
    }

    .about-banner-content .description p {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .about-banner {
        min-height: 320px;
    }

    .about-banner-content {
        padding: 40px 15px;
    }

    .about-banner-content .title h1 {
        font-size: 2rem;
    }

    .about-banner-content .description p {
        font-size: 1rem;
    }

    .about-banner .shape svg {
        height: 40px;
    }
}


/* ========== About 内容区域 ========== */
.about-section {
    padding: 100px 20px;
    background: #fff;
}

.about-container {
    max-width: 1280px;
    margin: 0 auto;
}

/* 介绍头部 - 标题描述居中 */
.about-intro {
    text-align: center;
    margin-bottom: 100px;
}

.about-intro-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #222;
    margin-bottom: 30px;
}

.about-intro-desc {
    max-width: 800px;
    margin: 0 auto 40px;
}

.about-intro-desc p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 15px;
}

.about-intro-desc p:last-child {
    margin-bottom: 0;
}

.about-btn {
    display: inline-block;
    padding: 14px 40px;
    background: #883E74;
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.about-btn:hover {
    background: #6d2f5a;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(136, 62, 116, 0.3);
}

/* ========== 图文行布局 ========== */
.about-row {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 80px;
    min-height: 400px;
}

.about-row:last-child {
    margin-bottom: 0;
}

/* 图片容器 */
.about-image-wrap {
    width: 60%;
    position: relative;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.about-image {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
    transform: scale(1.03)
}

/* 文字容器 - 高度比图片小，居中，交叠 */
.about-text-wrap {
    width: 50%;
    position: relative;
    z-index: 10;
    background: #fff;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.about-row.animate-in .about-text-wrap {
    opacity: 1;
    transform: translateY(0);
}

.about-text-content {
    max-width: 100%;
}

.about-text-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: #222;
    margin-bottom: 20px;
}

.about-text-desc {
    font-size: 1rem;
    line-height: 1.8;
    color: #666;
    margin: 0;
}

/* 第一行：左图右文 */
.about-row-left .about-image-wrap {
    margin-right: -80px;
}

.about-row-left .about-text-wrap {
    margin-left: auto;
}

/* 第二行：右图左文 */
.about-row-right .about-text-wrap {
    margin-right: -80px;
}

.about-row-right .about-image-wrap {
    margin-left: auto;
}

/* 入场动画 - 从两边往中间移动 */
.about-row.animate-in .about-image-wrap {
    animation: imageSlideIn 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.about-row-left.animate-in .about-image-wrap {
    transform: translateX(-100px);
}

.about-row-left.animate-in.animate-in .about-image-wrap {
    transform: translateX(0);
}

.about-row-right.animate-in .about-image-wrap {
    transform: translateX(100px);
}

.about-row-right.animate-in.animate-in .about-image-wrap {
    transform: translateX(0);
}

@keyframes imageSlideIn {
    to {
        opacity: 1;
    }
}

/* ========== 满屏视差图片区域 ========== */
.about-parallax-banner {
    position: relative;
    width: 100%;
    height: 700px;
    overflow: hidden;
}

.about-parallax-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
    transform: scale(1.08);
}

.about-parallax-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 2;
}

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .about-section {
        padding: 60px 20px;
    }

    .about-intro-title {
        font-size: 2rem;
    }

    .about-intro-desc p {
        font-size: 1rem;
    }

    .about-row {
        flex-direction: column;
        margin-bottom: 60px;
    }

    .about-image-wrap {
        width: 100%;
        margin: 0 !important;
    }

    .about-text-wrap {
        width: 90%;
        margin: -40px auto 0 !important;
        padding: 30px;
    }

    .about-image img {
        height: 320px;
    }

    .about-text-title {
        font-size: 1.5rem;
    }

    .about-parallax-banner {
        height: 450px;
    }
}

@media (max-width: 576px) {
    .about-section {
        padding: 40px 15px;
    }

    .about-intro {
        margin-bottom: 60px;
    }

    .about-intro-title {
        font-size: 1.75rem;
    }

    .about-image img {
        height: 240px;
    }

    .about-text-wrap {
        width: 100%;
        padding: 25px 20px;
        margin-top: -30px !important;
    }

    .about-text-title {
        font-size: 1.25rem;
        margin-bottom: 15px;
    }

    .about-parallax-banner {
        height: 300px;
    }
}

/* 淡入动画定义 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

/* ========== About Video 区域 ========== */
.about-video-section {
    padding: 100px 20px;
    background: #fafafa;
}

.about-video-container {
    max-width: 1280px;
    margin: 0 auto;
    text-align: center;
}

.about-video-header {
    margin-bottom: 50px;
}

.about-video-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #222;
    margin-bottom: 15px;
}

.about-video-subtitle {
    font-size: 1.125rem;
    color: #666;
    margin: 0;
}

/* YouTube视频容器 - 紫色边框 */
.about-video-wrapper {
    max-width: 900px;
    margin: 0 auto 40px;
    position: relative;
}

.about-video-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    /* 紫色边框偏移效果，和index中的case一致 */
}

.about-video-frame::after {
    content: '';
    position: absolute;
    right: -12px;
    bottom: -12px;
    width: 100%;
    height: 100%;
    border-right: 12px solid #883E74;
    border-bottom: 12px solid #883E74;
    border-radius: 24px;
    z-index: 0;
    pointer-events: none;
}

.about-video-frame iframe {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: block;
}

/* 底部按钮 - 紫色 */
.about-video-footer {
    text-align: center;
}

.about-video-btn {
    display: inline-block;
    padding: 14px 45px;
    background: #883E74;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.about-video-btn:hover {
    background: #6d2f5a;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(136, 62, 116, 0.3);
}

/* ========== About Video 响应式 ========== */
@media (max-width: 992px) {
    .about-video-section {
        padding: 60px 20px;
    }

    .about-video-title {
        font-size: 2rem;
    }

    .about-video-frame::after {
        right: -6px;
        bottom: -6px;
        border-right: 6px solid #883E74;
        border-bottom: 6px solid #883E74;
    }
}

@media (max-width: 576px) {
    .about-video-section {
        padding: 40px 15px;
    }

    .about-video-header {
        margin-bottom: 30px;
    }

    .about-video-title {
        font-size: 1.75rem;
    }

    .about-video-subtitle {
        font-size: 1rem;
    }

    .about-video-frame::after {
        right: -4px;
        bottom: -4px;
        border-right: 4px solid #883E74;
        border-bottom: 4px solid #883E74;
    }

    .about-video-btn {
        padding: 12px 35px;
        font-size: 1rem;
    }
}

/* ========== Everywhere 销售网络区域 ========== */
.everywhere {
    padding: 100px 20px;
    background: #fafafa;
}

.everywhere-container {
    /* max-width: 1280px; */
    width: 100%;
    margin: 0 auto;
    text-align: center;
}

.everywhere-header {
    margin-bottom: 50px;
}

.everywhere-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #222;
    margin-bottom: 15px;
}

.everywhere-subtitle {
    font-size: 1.125rem;
    color: #666;
    margin: 0;
}

/* 世界地图图片 */
.everywhere-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    background: #fff;
}

.everywhere-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.everywhere-image:hover img {
    transform: scale(1.02);
}

/* ========== Everywhere 响应式 ========== */
@media (max-width: 992px) {
    .everywhere {
        padding: 60px 20px;
    }

    .everywhere-title {
        font-size: 2rem;
    }

    .everywhere-header {
        margin-bottom: 35px;
    }
}

@media (max-width: 576px) {
    .everywhere {
        padding: 40px 15px;
    }

    .everywhere-header {
        margin-bottom: 25px;
    }

    .everywhere-title {
        font-size: 1.75rem;
    }

    .everywhere-subtitle {
        font-size: 1rem;
    }
}