/* =============================================
   所有项目详情页面共用样式
   自适应：>1920 大屏居中 / 1440-1920 默认 /
           1024-1439 小平板 / 769-1024 平板 / <769 手机
   ============================================= */

.project-page {
    background: transparent;
    font-family: 'Inter', sans-serif;
}

.project-page .nav-link:hover {
    color: #0066ff !important;
}
.project-page .nav-link.active {
    color: #0066ff !important;
}
.project-page .nav-link:focus,
.project-page .nav-link:focus-visible,
.project-page .nav-link:hover:focus,
.project-page .nav-link:hover:focus-visible {
    color: #0066ff !important;
    outline: none;
}

/* ===== 核心容器（全宽自适应，无 max-width 限制） ===== */
.project-page main,
.project-page .content-header,
.project-page .content-meta,
.project-page .video-section,
.project-page .video-section-dark,
.project-page .image-section,
.project-page .image-fullscreen-section,
.project-page .info-section,
.project-page .footer-section,
.project-page .footer-section-dark,
.project-page .page-nav,
.project-page .video-intro,
.project-page .video-grid-section,
.project-page .gallery-grid,
.project-page .gallery-grid-stage {
    margin-left: auto;
    margin-right: auto;
}

/* ===== 视差层 ===== */
.parallax-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: 1;
}

/* ===== 英雄区域（封面） ===== */
.hero-section {
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    z-index: 1;
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    min-height: 100%;
}
.footer-bg {
    position: absolute;
    top: 0;
    left: clamp(15px, 2.08vw, 30px);
    right: clamp(15px, 2.08vw, 30px);
    bottom: clamp(15px, 2.08vw, 30px);
}
.hero-video,
.footer-video,
.hero-image {
    width: 100%;
    height: 100%;
    min-height: 100%;
    object-fit: cover;
}

/* ===== 内容头部 ===== */
.content-header {
    position: relative;
    padding: clamp(12px, 1.25vw, 18px) clamp(15px, 2.08vw, 30px) clamp(80px, 10.69vw, 154px) clamp(15px, 2.08vw, 30px);
    background: #D4D4D4;
    z-index: 2;
    margin-top: 100vh;
}

.content-title {
    font-family: 'FZChaoCuHei-M10S', serif;
    font-style: normal;
    padding: 0;
    font-size: clamp(28px, 4.722vw, 68px);
    line-height: 123%;
    letter-spacing: 0.06em;
    color: #000000;
    display: flex;
    text-align: left;
    vertical-align: top;
    flex-direction: column;
}
.title-main,
.title-sub {
    text-align: left;
}
.title-sep {
    font-weight: 400;
    color: #666;
    margin: 0 20px;
}
.title-dash {
    letter-spacing: 0;
}

/* ===== 内容元数据 ===== */
.content-meta {
    padding: 0 clamp(15px, 2.08vw, 30px) 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #D4D4D4;
    color: #000000;
    position: relative;
    z-index: 2;
}
/* .meta-left / .meta-right 由各 detail 页面 CSS 自行定义，此处不设共用样式 */
.meta-label {
    font-size: clamp(13px, 1.25vw, 18px);
    font-weight: 400;
    letter-spacing: 0.06em;
    color: #000;
}
.meta-date {
    font-size: clamp(13px, 1.25vw, 18px);
    font-weight: 400;
    letter-spacing: 0.06em;
    color: #000;
}
.meta-tag {
    font-size: clamp(13px, 1.25vw, 18px);
    font-weight: 800;
    letter-spacing: 0.06em;
    color: #000;
}

/* ===== 视频简介 ===== */
.video-intro {
    padding: clamp(50px, 6.74vw, 97px) clamp(15px, 2.08vw, 30px) 23px clamp(15px, 2.08vw, 30px);
    display: flex;
    justify-content: space-between;
}
.video-intro-full {
    justify-content: space-between;
    padding-left: 0;
    padding-right: 0;
}
.intro-item {
    font-family: 'Inter', sans-serif;
    font-style: normal;
    font-weight: 800;
    line-height: 150%;
    letter-spacing: 0.06em;
    font-size: clamp(13px, 1.25vw, 18px);
    color: #000;
}

/* ===== 视频区域 ===== */
.video-section {
    position: relative;
    background: #D4D4D4;
    padding: 0 clamp(15px, 2.08vw, 30px) clamp(25px, 3.47vw, 50px) clamp(15px, 2.08vw, 30px);
    z-index: 2;
}
.video-section-dark {
    background: #D4D4D4;
    padding-bottom: 5px;
    position: relative;
    z-index: 2;
}

/* ===== 图片区域 ===== */
.image-section {
    background: #D4D4D4;
    padding: 20px clamp(15px, 2.08vw, 30px) 10px;
    position: relative;
    z-index: 2;
}
.image-section + .image-section {
    padding-top: 0;
}
.image-section .image-section-item {
    width: 100%;
    margin: 0 auto;
}
.image-section .image-section-item img {
    width: 100%;
    height: auto;
    display: block;
}

.video-label {
    position: absolute;
    top: clamp(35px, 5.56vw, 80px);
    left: clamp(35px, 5.56vw, 80px);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.286em;
    color: #666;
    z-index: 10;
}

.video-wrapper {
    width: 100%;
}
.video-wrapper-gap {
    margin-bottom: 23px;
}
.main-video {
    width: 100%;
    display: block;
    height: auto;
}

.video-caption {
    padding: clamp(20px, 2.78vw, 40px) clamp(35px, 5.56vw, 80px);
    text-align: center;
    background: #000000;
}
.video-caption-text {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.222em;
    color: #fff;
}

/* ===== 信息区域 ===== */
.info-section {
    padding: 0 clamp(15px, 2.08vw, 30px) clamp(40px, 5.69vw, 82px);
    background: #D4D4D4;
    position: relative;
    z-index: 2;
}
.info-image {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.info-image img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}
.info-columns {
    display: flex;
    gap: clamp(30px, 5.556vw, 80px);
}
.info-left-column {
    width: clamp(200px, 25.694vw, 370px);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}
.left-item {
    display: flex;
    flex-direction: column;
}
.left-item-tencent {
    margin-top: clamp(60px, 9.03vw, 130px);
}
.left-item-credits {
    margin-top: clamp(55px, 8.33vw, 120px);
}
.left-item-video-source {
    margin-top: clamp(15px, 2.08vw, 30px);
}
.left-title {
    font-size: clamp(10px, 0.833vw, 12px);
    font-weight: 800;
    letter-spacing: 0.333em;
    color: #000;
    text-transform: uppercase;
    margin-bottom: clamp(18px, 2.08vw, 30px);
}
.info-right-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: clamp(30px, 4.17vw, 60px);
    position: relative;
}
.shoutout-text {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.25em;
    color: #000;
    text-transform: uppercase;
}
.right-item {
    display: flex;
    flex-direction: column;
}
.section-title {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.143em;
    color: #000;
    margin-bottom: 20px;
    text-transform: uppercase;
}

/* ===== 页脚区域 ===== */
.footer-section {
    height: clamp(200px, 50vh, 50vh);
    position: relative;
    padding-top: 10px;
    padding-left: clamp(15px, 2.08vw, 30px);
    padding-right: clamp(15px, 2.08vw, 30px);
    background: #D4D4D4;
    overflow: hidden;
    z-index: 2;
}
.footer-section-dark {
    height: clamp(250px, 33.681vw, 485px);
    position: relative;
    z-index: 10;
    overflow: hidden;
    padding-bottom: clamp(15px, 2.08vw, 30px);
    background: #D4D4D4;
}

.footer-video-link {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 10;
    outline: none;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: #ffffff;
    font-size: clamp(13px, 1.25vw, 18px);
    letter-spacing: 0.06em;
    text-decoration: none;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    padding: 0 clamp(15px, 2.08vw, 30px) clamp(15px, 2.08vw, 30px) 0;
}
.footer-video-link:hover,
.footer-video-link:active,
.footer-video-link:focus,
.footer-video-link:focus-visible {
    color: #0066ff;
}

.footer-video-link-last {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    z-index: 10;
    outline: none;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    color: #ffffff;
    font-size: clamp(13px, 1.25vw, 18px);
    letter-spacing: 0.06em;
    text-decoration: none;
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 0 0 clamp(15px, 2.08vw, 30px) clamp(15px, 2.08vw, 30px);
}
.footer-video-link-last:hover,
.footer-video-link-last:active,
.footer-video-link-last:focus,
.footer-video-link-last:focus-visible {
    color: #0066ff;
}

/* ===== 页面导航 ===== */
.page-nav {
    padding: clamp(30px, 5.556vw, 80px) clamp(15px, 2.08vw, 30px) clamp(30px, 5.556vw, 80px) clamp(15px, 2.08vw, 30px);
    background: #D4D4D4;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: clamp(40px, 8.333vw, 120px);
    position: relative;
    z-index: 2;
}
.next-project,
.prev-project {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #000;
}
.next-label,
.prev-label {
    display: block;
    font-size: clamp(10px, 0.833vw, 12px);
    font-weight: 600;
    letter-spacing: 0.333em;
    color: #666;
    margin-bottom: 20px;
}
.next-title,
.prev-title {
    font-size: clamp(20px, 2.917vw, 42px);
    font-weight: 800;
    letter-spacing: 0.19em;
    transition: color 0.3s ease;
}
.next-project:hover .next-title,
.prev-project:hover .prev-title,
.next-project:active .next-title,
.prev-project:active .prev-title {
    color: #0066ff;
}

/* ===== 全屏图片展示区域 ===== */
.image-fullscreen-section {
    background: #D4D4D4;
    width: 100%;
    position: relative;
    z-index: 2;
    padding: 0 clamp(15px, 2.08vw, 30px) clamp(15px, 2.08vw, 30px);
}
.image-fullscreen-item {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: #D4D4D4;
}
.image-fullscreen-item img {
    width: 100%;
    height: auto;
    display: block;
}
.hover-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    z-index: 1;
}
.image-fullscreen-with-video {
    position: relative;
    overflow: visible;
}
.image-fullscreen-with-video-right-40 {
    position: relative;
    overflow: visible;
}
.image-fullscreen-with-video-center {
    position: relative;
    overflow: visible;
}

/* ===== 视频网格布局 ===== */
.video-grid-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 10px clamp(15px, 2.08vw, 30px) 23px;
    background: #000000;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.video-grid-item {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.grid-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.grid-video-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    opacity: 1;
    transition: opacity 0.3s ease;
}
.video-grid-item:hover .grid-video-cover {
    opacity: 0;
}
.grid-video-cover-curtainoftime {
    background: rgba(0, 0, 0, 0.3);
}

/* ===== 画廊网格布局 ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.gallery-item {
    aspect-ratio: 1;
    overflow: hidden;
    transform-style: preserve-3d;
    will-change: transform;
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== Stage 画廊网格 ===== */
.gallery-grid-stage {
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    background: #000000;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.gallery-grid-stage .gallery-item-first,
.gallery-grid-stage .gallery-item {
    width: 100%;
    aspect-ratio: auto;
}
.gallery-grid-stage .gallery-item-first img,
.gallery-grid-stage .gallery-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
}