body {
    background: #fff;
}

.back-home {
    position: fixed;
    top: 50px;
    left: 100px;
    z-index: 999;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 8px 14px 8px 12px;
    border: 1px solid #e2e2e2;
    border-radius: 999px;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .05);
    font-size: 12px;
    line-height: 1;
    color: #444;
    letter-spacing: .02em;
    transition: .2s;
}

.back-home:hover {
    color: #111;
    border-color: #cfcfcf;
    background: #fff;
    transform: translateY(-1px);
}

.detail-nav {
    position: fixed;
    top: 32px;
    right: 32px;
    transform: none;
    z-index: 998;
    display: flex;
    flex-direction: column;
    gap: 0;
    font-size: 11px;
    line-height: 1.2;
    color: #777;
}

.detail-nav a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 0;
    transition: .2s;
}

.detail-nav a span {
    width: 9px;
    height: 9px;
    border: 1px solid #999;
    border-radius: 50%;
    background: #fff;
    z-index: 2;
}

.detail-nav a:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 4px;
    top: 20px;
    width: 1px;
    height: 18px;
    background: #cfcfcf;
}

.detail-nav a.active {
    color: #222;
}

.detail-nav a.active span {
    background: #222;
    border-color: #222;
}

.detail-main {
    width: min(760px, 68%);
    margin: 0 auto;
    padding: 10px 0 96px;
}

.detail-hero {
    width: 100%;
    padding: 88px 0 46px;
}

.detail-label {
    margin-bottom: 12px;
    font-size: 11px;
    color: #999;
    letter-spacing: .08em;
}

.detail-hero h1 {
    max-width: 720px;
    font-size: 23px;
    line-height: 1.55;
    font-weight: 600;
}

.detail-lead {
    max-width: 720px;
    margin-top: 18px;
    font-size: 13px;
    line-height: 2;
    color: #444;
}

.detail-section {
    width: 100%;
    padding: 44px 0;
    border-top: 1px solid #eee;
    scroll-margin-top: 72px;
}

.detail-section h2 {
    margin-bottom: 18px;
    font-size: 17px;
    font-weight: 600;
    color: #555;
}

.detail-section p {
    margin-bottom: 14px;
    font-size: 13px;
    line-height: 2;
    color: #444;
}

.detail-section img {
    width: min(560px, 82%);
    margin: 24px auto 0;
}

.detail-output-list {
    list-style: none;
}

.detail-output-list li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    font-size: 12px;
    line-height: 1.7;
}

.detail-output-list a {
    color: #444;
    transition: .2s;
}

.detail-output-list a:hover {
    color: #000;
}

.research-video {
    display: flex;
    justify-content: center;
    margin: 32px auto;
}

.research-video video {
    width: 500px;
    max-width: 100%;
    display: block;
    margin: 0 auto;
}

.detail-section h3 {
    margin: 32px 0 12px;
    font-size: 14px;
    font-weight: 600;
    color: #555;
}

.detail-section ul {
    margin: 18px 0 24px;
    padding: 0;
    list-style: none;
}

.detail-section li {
    position: relative;
    margin-bottom: 14px;
    padding: 16px 18px 16px 42px;
    border: 1px solid #eee;
    border-radius: 12px;
    background: #fafafa;
    font-size: 12px;
    line-height: 1.9;
    color: #444;
}

.detail-section li::before {
    content: "";
    position: absolute;
    left: 18px;
    top: 25px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #555;
}

.detail-section li:last-child {
    margin-bottom: 0;
}

.research-slider {
    position: relative;
    width: min(900px, 100%);
    height: 300px;
    margin: 32px auto;
    overflow: hidden;
}

.research-slides {
    display: flex;
    height: 100%;
    transition: transform .4s ease;
}

.research-slides img {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
}

.research-prev,
.research-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, .45);
    backdrop-filter: blur(8px);
    color: #333;
    font-size: 20px;
    cursor: pointer;
    z-index: 20;
}

.research-prev {
    left: 14px;
}

.research-next {
    right: 14px;
}

.research-indicator {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: flex;
    gap: 9px;
    z-index: 20;
}

.research-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .55);
    border: 1px solid rgba(0, 0, 0, .18);
}

.research-indicator span.active {
    background: #333;
    border-color: #333;
}

.detail-output-list {
    list-style: none;
    margin: 30px 0 0;
    padding: 0;
}

.detail-output-list li {
    list-style: none;
    margin: 0 0 12px;
    padding: 0;
}

.detail-output-list li::before {
    display: none !important;
    content: none !important;
}

.detail-output-card {
    position: relative;
    display: block;
    padding: 16px 62px 16px 18px;
    border: 1px solid #eee;
    border-radius: 12px;
    background: #fff;
    transition: .2s;
}

.detail-output-card:hover {
    background: #f7f7f7;
    border-color: #d8d8d8;
}

.detail-output-title {
    display: block;
    font-size: 11px;
    font-weight: 550;
    line-height: 1.5;
    color: #333;
}

.detail-output-meta {
    display: block;
    margin-top: 5px;
    font-size: 9.5px;
    line-height: 1.5;
    color: #999;
}

.detail-output-card .external-icon {
    position: absolute;
    top: 22px;
    right: 22px;
    width: 14px;
    height: 14px;
}

.detail-output-card .external-icon svg {
    width: 100%;
    height: 100%;
    stroke: #777;
    stroke-width: 1.8;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

footer {
    width: min(1280px, 84%);
    margin: 80px auto 40px;
    padding-top: 24px;
    border-top: 1px solid #ececec;
    text-align: center;
}

footer p {
    font-size: 11px;
    color: #999;
    letter-spacing: .04em;
}

@media (max-width: 900px) {
    .back-home {
        top: 16px;
        left: 16px;
    }

    .detail-nav {
        display: none;
    }

    .detail-main {
        width: min(680px, 86%);
        padding-top: 64px;
    }

    .detail-hero {
        padding-top: 64px;
    }

    .detail-section img {
        width: 100%;
    }
}

@media (max-width: 900px) {

    .detail-nav {
        display: none;
    }

}