:root{--landscape-ratio: 16 / 9;--side-width: 400px;--column-gap: 30px;--safe-area: 136px}.video-container .main-content{display:table;width:100%;padding-top:30px}.video-container .main-content .main-section{display:table-cell;width:100%;aspect-ratio:var(--landscape-ratio)}.video-container .main-content .main-section .player-section{aspect-ratio:var(--landscape-ratio);margin:0 auto;width:100%}.video-container .main-content .main-section .player-section video{background-color:#000;height:100%;width:100%;vertical-align:top}.video-container .main-content .main-section .image-section{text-align:center;background:linear-gradient(180deg, #e7e7e7, #f0f0f0)}.video-container .main-content .main-section .image-section img{max-width:100%}.video-container .main-content .side-sections{display:table-cell;width:100%;vertical-align:top;padding-left:var(--column-gap)}.video-container .main-content .side-sections .side-section-area{position:relative;top:0;right:0;width:var(--side-width);padding-bottom:30px}.video-container .main-content .side-sections .side-section-area .side-section:not(:first-child){border-top:1px solid rgba(255,255,255,0.03);border-color:rgba(0,0,0,0.05);margin-top:30px;padding-top:30px}.video-container .main-content .side-sections .side-section-area .side-section .side-section-title{font-size:1.1rem;font-weight:bold;border-left:3px solid var(--secondary-color);padding-left:8px}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item{display:flex;margin-top:16px}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .link-thumbnail{overflow:hidden;position:relative;width:160px;height:90px;margin-right:14px;border-radius:5px;flex:none}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .link-thumbnail:hover+.info-area .title-link{color:var(--secondary-color)}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .link-thumbnail img{background-size:cover;background-repeat:no-repeat;position:absolute;inset:0px;box-sizing:border-box;padding:0px;border:none;margin:auto;display:block;width:0px;height:0px;min-width:100%;max-width:100%;min-height:100%;max-height:100%;object-fit:cover}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .link-thumbnail.ebook{width:120px;height:170px}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .info-area .title-link{font-size:0.9rem;color:var(--primary-color);line-height:20px;letter-spacing:-.3px;display:block;overflow:hidden;-webkit-line-clamp:3;-webkit-box-orient:vertical;text-overflow:ellipsis;white-space:normal;word-break:break-all;display:-webkit-box;white-space:pre-line}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .info-area .title-link:hover{color:var(--secondary-color)}.video-container .main-content .side-sections .side-section-area .side-section .side-section-list .list-item .date{padding-top:5px;display:block;font-size:0.75rem;color:var(--primary-color)}.video-container .main-content .article-section{padding:24px;word-break:break-all;border-width:1px;border:1px solid #e7e7e7;border-top:0px solid #e7e7e7;background-color:#fff;box-shadow:0 1px 2px 0 rgba(0,0,0,0.05);border-radius:0 0 12px 12px}.video-container .main-content .article-section .buy-button{display:flex;justify-content:center}.video-container .main-content .article-section .buy-button a{background:linear-gradient(135deg, #ff5e5e, #c00);color:white;border:none;border-radius:12px;padding:16px 12%;font-size:1rem;font-weight:bold;text-align:center;cursor:pointer;box-shadow:0 4px 8px rgba(204,0,0,0.4);transition:transform 0.2s ease, box-shadow 0.2s ease}.video-container .main-content .article-section .buy-button a:hover{transform:scale(1.05);box-shadow:0 6px 12px rgba(204,0,0,0.6)}.video-container .main-content .article-section .article-title-area{padding-top:32px}.video-container .main-content .article-section .article-title-area .article-title{color:var(--primary-color);font-size:1.3rem;line-height:28px;letter-spacing:-.5px;font-weight:700}.video-container .main-content .article-section .article-info-area{overflow:hidden;margin-top:24px;border-top:1px solid rgba(255,255,255,0.03);border-color:rgba(0,0,0,0.05)}.video-container .main-content .article-section .article-info-area .description-area{font-size:0.9rem;line-height:20px;letter-spacing:-.3px;overflow:hidden;max-height:100px;margin-top:10px;white-space:pre-line}.video-container .main-content .article-section .article-info-area .description-area .description{color:var(--color-greywhite-03)}.video-container .main-content .article-section .article-info-area .description-area.open{max-height:unset}.video-container .main-content .article-section .article-info-area .button-expand-description{font-size:1rem;line-height:20px;letter-spacing:-.3px;display:inline-block;margin-top:10px;vertical-align:top;color:var(--color-greywhite-03)}.video-container .main-content .article-section .article-info-area .button-expand-description:hover{color:var(--secondary-color)}.video-container .main-content .article-section .article-info-area .button-expand-description .button-text{font-size:0.9rem}.video-container .main-content .article-section .article-info-area .button-expand-description .link-icon{display:inline-block}.video-container .main-content .article-section .article-info-area .button-expand-description .link-icon svg{width:0.9rem;height:0.9rem}.video-container .main-content .article-section .secondary-info-area{margin-top:20px;color:var(--color-greywhite-03)}.video-container .main-content .article-section .secondary-info-area .secondary-info{display:table;line-height:20px}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-title{display:table-cell;font-size:0.9rem;width:80px;vertical-align:top}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-title:after{content:':';float:right}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-text{display:table-cell;font-size:0.9rem;padding-left:8px}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-link{display:inline-block;font-size:0.9rem;padding-left:8px}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-link .info-link-list{display:inline-block}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-link .info-link-list .info-link{color:var(--color-link-blue)}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-link .info-link-list .info-link:hover{text-decoration:underline}.video-container .main-content .article-section .secondary-info-area .secondary-info .secondary-info-link .info-link-list:not(:first-child):before{content:'、';margin-left:-3px;margin-right:-7px}.video-container .main-content .article-section .article-image-area{overflow:hidden;margin-top:24px}.video-container .main-content .article-section .article-image-area .image-list{margin-left:-10px;margin-bottom:14px;display:flex;flex-wrap:wrap;padding:0}.video-container .main-content .article-section .article-image-area .image-list .image-item{display:inline-block;flex:0 0 calc(100% / 2);max-width:calc(100% / 2);box-sizing:border-box;margin-bottom:10px;padding-left:10px;vertical-align:top}.video-container .main-content .article-section .article-image-area .image-list .image-item img{width:100%;height:auto;object-fit:cover;display:block}@media (max-width: 1399px){.video-container .main-content{display:block}.video-container .main-content .main-section{display:block;margin-top:0;--side-width: 100%}.video-container .main-content .side-sections{display:block;padding-right:0;padding-left:0;position:relative;margin-top:0;width:100%}.video-container .main-content .side-sections .side-section-area{position:relative;width:100%;padding:30px 0 0}}@media (max-width: 1024px){.video-container .main-content{padding-top:0}}@media (max-width: 580px){.video-container{padding:var(--header-height) 0 0 !important}.video-container .main-content{padding-top:0}.video-container .main-content .main-section{margin-top:0 !important}.video-container .main-content .article-section{padding:24px var(--common-side-margin);border:0;box-shadow:none;border-radius:0;border-bottom:12px solid #e7e7e7}.video-container .main-content .side-sections .side-section-area{position:relative;width:100%}.video-container .main-content .side-sections .side-section-area .side-section{padding:0 var(--common-side-margin)}}