.hc3d-explorer {
    --hc3d-ink: #163242;
    --hc3d-muted: #63737c;
    --hc3d-paper: #f6f3ea;
    --hc3d-line: rgba(22, 50, 66, .12);
    --hc3d-gold: #e1a82f;
    --hc3d-deep: #173b4c;
    position: relative;
    width: min(1480px, calc(100% - 40px));
    margin: 32px auto 56px;
    color: var(--hc3d-ink);
    font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
}

.hc3d-explorer *,
.hc3d-explorer *::before,
.hc3d-explorer *::after {
    box-sizing: border-box;
}

.hc3d-explorer button,
.hc3d-explorer a {
    -webkit-tap-highlight-color: transparent;
}

.hc3d-intro {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin: 0 0 24px;
}

.hc3d-kicker {
    display: inline-block;
    margin-bottom: 10px;
    color: #b36f2f;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .18em;
    text-transform: uppercase;
}

.hc3d-intro h1,
.hc3d-list-heading h2 {
    margin: 0;
    color: var(--hc3d-ink);
    font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
    font-size: clamp(30px, 4vw, 56px);
    font-weight: 800;
    letter-spacing: -.04em;
    line-height: 1.15;
}

.hc3d-intro p {
    max-width: 760px;
    margin: 14px 0 0;
    color: var(--hc3d-muted);
    font-size: 16px;
    line-height: 1.8;
}

.hc3d-view-switch {
    display: flex;
    flex: 0 0 auto;
    gap: 4px;
    padding: 5px;
    border: 1px solid var(--hc3d-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 10px 30px rgba(27, 58, 71, .08);
}

.hc3d-view-switch button {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 42px;
    padding: 0 18px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--hc3d-muted);
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    transition: background .2s ease, color .2s ease, transform .2s ease;
}

.hc3d-view-switch button:hover,
.hc3d-view-switch button:focus-visible {
    color: var(--hc3d-ink);
}

.hc3d-view-switch button.is-active {
    background: var(--hc3d-deep);
    color: #fff;
    box-shadow: 0 7px 18px rgba(23, 59, 76, .22);
}

.hc3d-domain-nav {
    position: relative;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-bottom: 16px;
    border: 1px solid var(--hc3d-line);
    border-radius: 18px;
    background: rgba(255,255,255,.86);
    box-shadow: 0 14px 34px rgba(24, 52, 65, .08);
}

.hc3d-domain-nav details {
    position: relative;
    min-width: 0;
    border-right: 1px solid var(--hc3d-line);
}

.hc3d-domain-nav details:last-child {
    border-right: 0;
}

.hc3d-domain-nav summary {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0 11px;
    min-height: 74px;
    align-content: center;
    padding: 12px 18px;
    cursor: pointer;
    list-style: none;
    transition: background .18s ease;
}

.hc3d-domain-nav summary::-webkit-details-marker {
    display: none;
}

.hc3d-domain-nav summary::after {
    position: absolute;
    top: 50%;
    right: 14px;
    color: #9a7542;
    content: "+";
    font-size: 16px;
    transform: translateY(-50%);
}

.hc3d-domain-nav details[open] summary::after {
    content: "−";
}

.hc3d-domain-nav summary:hover,
.hc3d-domain-nav summary:focus-visible,
.hc3d-domain-nav details[open] summary {
    background: #f7f3e8;
    outline: none;
}

.hc3d-domain-nav summary > span {
    grid-row: 1 / 3;
    align-self: center;
    color: #c18438;
    font-family: Georgia, serif;
    font-size: 11px;
    font-weight: 800;
}

.hc3d-domain-nav summary strong {
    padding-right: 18px;
    color: var(--hc3d-ink);
    font-size: 13px;
}

.hc3d-domain-nav summary small {
    margin-top: 3px;
    color: var(--hc3d-muted);
    font-size: 10px;
}

.hc3d-domain-menu {
    position: absolute;
    top: calc(100% + 7px);
    left: 8px;
    z-index: 30;
    display: grid;
    width: calc(100% - 16px);
    min-width: 210px;
    padding: 8px;
    border: 1px solid var(--hc3d-line);
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 20px 45px rgba(23, 59, 76, .18);
}

.hc3d-domain-menu a {
    padding: 10px 12px;
    border-radius: 9px;
    color: var(--hc3d-ink);
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
}

.hc3d-domain-menu a:hover,
.hc3d-domain-menu a:focus-visible {
    background: #f3efe4;
    color: #a9692f;
    outline: none;
}

.hc3d-stage {
    display: block;
    min-height: 0;
    overflow: hidden;
    border: 1px solid rgba(23, 59, 76, .13);
    border-radius: 28px;
    background: #f0ede3;
    box-shadow: 0 28px 70px rgba(24, 52, 65, .16);
}

.hc3d-scene-wrap {
    position: relative;
    min-width: 0;
    overflow: hidden;
}

.hc3d-scene {
    position: relative;
    width: 100%;
    min-height: 0;
    aspect-ratio: 1672 / 941;
    overflow: hidden;
    background: #d8edf2;
    isolation: isolate;
}

.hc3d-scene::after {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(90deg, transparent 60%, rgba(22, 50, 66, .08));
    content: "";
    pointer-events: none;
}

.hc3d-landscape {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hc3d-generated-landscape {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    object-position: center;
}

.hc3d-hint {
    position: absolute;
    top: 22px;
    left: 24px;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 13px;
    border: 1px solid rgba(255,255,255,.66);
    border-radius: 999px;
    background: rgba(16, 45, 58, .72);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .02em;
    backdrop-filter: blur(12px);
}

.hc3d-hotspot {
    position: absolute;
    top: var(--point-y);
    left: var(--point-x);
    z-index: 6;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin: 0;
    padding: 7px 12px 7px 7px;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(255,255,255,.72);
    border-radius: 999px;
    background: rgba(18, 45, 57, .83);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
    white-space: nowrap;
    box-shadow: 0 8px 22px rgba(16, 39, 50, .22);
    backdrop-filter: blur(10px);
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.hc3d-hotspot:hover,
.hc3d-hotspot:focus-visible,
.hc3d-hotspot.is-active {
    z-index: 8;
    transform: translate(-50%, -50%) scale(1.08);
    background: var(--point-accent);
    box-shadow: 0 10px 30px color-mix(in srgb, var(--point-accent) 42%, transparent);
    outline: none;
}

.hc3d-hotspot:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

.hc3d-hotspot-dot {
    position: relative;
    display: block;
    width: 15px;
    height: 15px;
    border: 4px solid #fff;
    border-radius: 50%;
    background: var(--point-accent);
}

.hc3d-hotspot-dot::before {
    position: absolute;
    inset: -10px;
    border: 2px solid rgba(255, 255, 255, .7);
    border-radius: 50%;
    content: "";
    animation: hc3d-pulse 2.2s infinite;
}

.hc3d-detail {
    position: relative;
    z-index: 10;
    min-width: 0;
    padding: 26px 30px 30px;
    border-top: 1px solid rgba(23, 59, 76, .1);
    background:
        radial-gradient(circle at 100% 0, rgba(225, 168, 47, .16), transparent 30%),
        linear-gradient(155deg, #fbfaf6, #f2eee3);
}

.hc3d-detail-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 3;
    display: none;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--hc3d-line);
    border-radius: 50%;
    background: #fff;
    color: var(--hc3d-ink);
    cursor: pointer;
    font-size: 24px;
    line-height: 1;
}

.hc3d-point-panel[hidden],
.hc3d-topic-content[hidden],
.hc3d-list-view[hidden],
.hc3d-stage[hidden] {
    display: none !important;
}

.hc3d-point-panel.is-active {
    display: grid;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    grid-template-areas:
        "heading tabs"
        "description content"
        "actions content";
    gap: 14px 28px;
    animation: hc3d-panel-in .28s ease both;
}

.hc3d-point-heading {
    grid-area: heading;
    display: flex;
    align-items: center;
    gap: 15px;
    padding-right: 25px;
}

.hc3d-point-heading > span {
    display: grid;
    width: 58px;
    height: 58px;
    flex: 0 0 58px;
    place-items: center;
    border-radius: 18px 18px 6px 18px;
    background: var(--point-accent);
    color: #fff;
    font-family: "STSong", "Songti SC", serif;
    font-size: 19px;
    font-weight: 800;
    box-shadow: 0 12px 26px color-mix(in srgb, var(--point-accent) 28%, transparent);
}

.hc3d-point-heading small {
    display: block;
    margin-bottom: 3px;
    color: #9a7542;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .16em;
}

.hc3d-point-heading h2 {
    margin: 0;
    color: var(--hc3d-ink);
    font-family: "STSong", "Songti SC", serif;
    font-size: 28px;
    line-height: 1.15;
}

.hc3d-point-description {
    grid-area: description;
    margin: 0;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--hc3d-line);
    color: var(--hc3d-muted);
    font-size: 14px;
    line-height: 1.8;
}

.hc3d-topic-tabs {
    grid-area: tabs;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
    margin-bottom: 0;
    padding: 4px;
    border: 1px solid var(--hc3d-line);
    border-radius: 14px;
    background: rgba(255,255,255,.7);
}

.hc3d-topic-tabs button {
    display: flex;
    min-width: 0;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0 7px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: #6f7b80;
    cursor: pointer;
    font: inherit;
    font-size: 12px;
    font-weight: 800;
    transition: .2s ease;
}

.hc3d-topic-tabs button span {
    color: #b57b33;
    font-family: Georgia, serif;
    font-size: 14px;
}

.hc3d-topic-tabs button:hover,
.hc3d-topic-tabs button:focus-visible,
.hc3d-topic-tabs button.is-active {
    background: var(--hc3d-deep);
    color: #fff;
    outline: none;
}

.hc3d-topic-tabs button.is-active span {
    color: #f1c76b;
}

.hc3d-article-stack {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}

.hc3d-topic-content {
    grid-area: content;
    min-width: 0;
}

.hc3d-article-card {
    position: relative;
    display: block;
    padding: 13px 38px 12px 14px;
    overflow: hidden;
    border: 1px solid rgba(23, 59, 76, .09);
    border-radius: 13px;
    background: rgba(255, 255, 255, .72);
    color: var(--hc3d-ink);
    text-decoration: none;
    transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.hc3d-article-card:hover,
.hc3d-article-card:focus-visible {
    transform: translateX(4px);
    border-color: rgba(181, 123, 51, .5);
    background: #fff;
    outline: none;
}

.hc3d-article-type {
    display: block;
    margin-bottom: 4px;
    color: #ad7432;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .08em;
}

.hc3d-article-card strong {
    display: -webkit-box;
    overflow: hidden;
    font-size: 13px;
    line-height: 1.55;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.hc3d-article-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 6px;
    color: #8b979c;
    font-size: 10px;
}

.hc3d-article-meta i {
    position: absolute;
    top: 50%;
    right: 15px;
    color: #b47935;
    font-size: 17px;
    font-style: normal;
    transform: translateY(-50%);
}

.hc3d-empty {
    padding: 30px 18px;
    border: 1px dashed rgba(23, 59, 76, .2);
    border-radius: 14px;
    color: var(--hc3d-muted);
    text-align: center;
    font-size: 13px;
    line-height: 1.8;
}

.hc3d-panel-actions {
    grid-area: actions;
    display: grid;
    grid-template-columns: 1fr;
    gap: 9px;
    margin-top: 0;
}

.hc3d-panel-actions a {
    display: flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 800;
    text-align: center;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}

.hc3d-panel-actions a:hover,
.hc3d-panel-actions a:focus-visible {
    transform: translateY(-2px);
    outline: none;
}

.hc3d-panel-actions a.hc3d-primary-action {
    background: var(--hc3d-deep);
    color: #fff;
    box-shadow: 0 10px 22px rgba(23, 59, 76, .18);
}

.hc3d-panel-actions a.hc3d-secondary-action {
    border: 1px solid rgba(23, 59, 76, .18);
    background: rgba(255,255,255,.7);
    color: var(--hc3d-ink);
}

.hc3d-list-view {
    padding: 34px;
    border: 1px solid var(--hc3d-line);
    border-radius: 28px;
    background: linear-gradient(145deg, #fbfaf6, #f0ece1);
    box-shadow: 0 28px 70px rgba(24, 52, 65, .12);
}

.hc3d-list-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.hc3d-list-heading h2 {
    font-size: clamp(28px, 3vw, 42px);
}

.hc3d-list-heading p {
    max-width: 410px;
    margin: 0;
    color: var(--hc3d-muted);
    font-size: 13px;
    line-height: 1.7;
}

.hc3d-area-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.hc3d-area-card {
    position: relative;
    display: flex;
    min-height: 180px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    padding: 20px;
    overflow: hidden;
    border: 1px solid rgba(23, 59, 76, .1);
    border-radius: 18px;
    background: rgba(255,255,255,.76);
    color: var(--hc3d-ink);
    cursor: pointer;
    font: inherit;
    text-align: left;
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.hc3d-area-card::after {
    position: absolute;
    right: -26px;
    bottom: -35px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--point-accent) 18%, transparent);
    content: "";
}

.hc3d-area-card:hover,
.hc3d-area-card:focus-visible {
    transform: translateY(-5px);
    border-color: var(--point-accent);
    box-shadow: 0 18px 35px rgba(23, 59, 76, .12);
    outline: none;
}

.hc3d-area-number {
    color: var(--point-accent);
    font-family: Georgia, serif;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
}

.hc3d-area-copy {
    position: relative;
    z-index: 1;
    display: block;
}

.hc3d-area-copy strong {
    display: block;
    margin-bottom: 8px;
    font-family: "STSong", "Songti SC", serif;
    font-size: 21px;
}

.hc3d-area-copy small {
    display: -webkit-box;
    overflow: hidden;
    color: var(--hc3d-muted);
    font-size: 12px;
    font-weight: 400;
    line-height: 1.65;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.hc3d-area-arrow {
    position: absolute;
    top: 17px;
    right: 18px;
    color: var(--point-accent);
    font-size: 18px;
}

.hc3d-quick-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 16px;
    overflow: hidden;
    border: 1px solid var(--hc3d-line);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 15px 38px rgba(24, 52, 65, .08);
}

.hc3d-quick-links a {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    gap: 0 12px;
    min-height: 88px;
    align-content: center;
    padding: 15px 22px;
    border-right: 1px solid var(--hc3d-line);
    color: var(--hc3d-ink);
    text-decoration: none;
    transition: background .18s ease;
}

.hc3d-quick-links a:last-child {
    border-right: 0;
}

.hc3d-quick-links a:hover,
.hc3d-quick-links a:focus-visible {
    background: #f7f3e8;
    outline: none;
}

.hc3d-quick-links span {
    grid-row: 1 / 3;
    align-self: center;
    color: #d39037;
    font-family: Georgia, serif;
    font-size: 12px;
    font-weight: 800;
}

.hc3d-quick-links strong {
    font-size: 14px;
}

.hc3d-quick-links small {
    margin-top: 4px;
    color: var(--hc3d-muted);
    font-size: 11px;
}

@keyframes hc3d-pulse {
    0% { opacity: .8; transform: scale(.55); }
    75%, 100% { opacity: 0; transform: scale(1.45); }
}

@keyframes hc3d-panel-in {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 1120px) {
    .hc3d-detail {
        padding: 25px 22px;
    }

    .hc3d-area-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 860px) {
    .hc3d-explorer {
        width: min(100% - 24px, 720px);
        margin-top: 20px;
    }

    .hc3d-intro {
        align-items: flex-start;
        flex-direction: column;
    }

    .hc3d-view-switch {
        align-self: stretch;
    }

    .hc3d-view-switch button {
        flex: 1;
        justify-content: center;
    }

    .hc3d-domain-nav {
        grid-template-columns: repeat(2, 1fr);
    }

    .hc3d-domain-nav details:nth-child(2) {
        border-right: 0;
    }

    .hc3d-domain-nav details:nth-child(-n+2) {
        border-bottom: 1px solid var(--hc3d-line);
    }

    .hc3d-stage {
        display: block;
        min-height: 0;
        overflow: visible;
        border-radius: 22px;
    }

    .hc3d-scene-wrap {
        overflow: hidden;
        border-radius: 22px 22px 0 0;
    }

    .hc3d-scene {
        min-height: auto;
        aspect-ratio: 1672 / 941;
    }

    .hc3d-detail {
        min-height: 0;
        border-top: 1px solid var(--hc3d-line);
        border-left: 0;
        border-radius: 0 0 22px 22px;
    }

    .hc3d-point-panel.is-active {
        display: block;
    }

    .hc3d-point-description {
        margin: 20px 0 22px;
        padding-bottom: 20px;
    }

    .hc3d-topic-tabs {
        margin-bottom: 16px;
    }

    .hc3d-article-stack {
        grid-template-columns: 1fr;
    }

    .hc3d-panel-actions {
        grid-template-columns: 1.5fr 1fr;
        margin-top: 18px;
    }

    .hc3d-detail.is-collapsed {
        display: none;
    }

    .hc3d-detail-close {
        display: grid;
        place-items: center;
    }

    .hc3d-hint {
        top: 13px;
        left: 13px;
        font-size: 10px;
    }

    .hc3d-hotspot {
        padding-right: 8px;
        font-size: 10px;
    }

    .hc3d-hotspot-dot {
        width: 12px;
        height: 12px;
        border-width: 3px;
    }

    .hc3d-list-view {
        padding: 24px;
        border-radius: 22px;
    }

    .hc3d-list-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .hc3d-quick-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .hc3d-quick-links a:nth-child(2) {
        border-right: 0;
    }

    .hc3d-quick-links a:nth-child(-n+2) {
        border-bottom: 1px solid var(--hc3d-line);
    }
}

@media (max-width: 560px) {
    .hc3d-explorer {
        width: min(100% - 18px, 520px);
        margin-bottom: 36px;
    }

    .hc3d-intro h1 {
        font-size: 32px;
    }

    .hc3d-intro p {
        font-size: 14px;
    }

    .hc3d-scene {
        aspect-ratio: 1672 / 941;
    }

    .hc3d-domain-nav summary {
        min-height: 68px;
        padding: 10px 12px;
    }

    .hc3d-domain-nav summary small {
        display: none;
    }

    .hc3d-domain-menu {
        position: fixed;
        top: auto;
        right: 12px;
        bottom: 18px;
        left: 12px;
        width: auto;
        min-width: 0;
        padding: 12px;
    }

    .hc3d-landscape,
    .hc3d-generated-landscape {
        left: 0;
        width: 100%;
        max-width: none;
    }

    .hc3d-hotspot-label {
        display: none;
    }

    .hc3d-hotspot {
        padding: 7px;
    }

    .hc3d-hotspot.is-active .hc3d-hotspot-label,
    .hc3d-hotspot:focus .hc3d-hotspot-label {
        display: inline;
    }

    .hc3d-detail {
        min-height: 520px;
        padding: 24px 17px 20px;
    }

    .hc3d-point-heading > span {
        width: 50px;
        height: 50px;
        flex-basis: 50px;
        font-size: 16px;
    }

    .hc3d-point-heading h2 {
        font-size: 24px;
    }

    .hc3d-topic-tabs button {
        flex-direction: column;
        gap: 1px;
        min-height: 46px;
        font-size: 10px;
    }

    .hc3d-panel-actions {
        grid-template-columns: 1fr;
    }

    .hc3d-area-grid {
        grid-template-columns: 1fr;
    }

    .hc3d-area-card {
        min-height: 145px;
    }

    .hc3d-quick-links a {
        min-height: 82px;
        padding: 14px 12px;
    }

    .hc3d-quick-links small {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hc3d-explorer *,
    .hc3d-explorer *::before,
    .hc3d-explorer *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

/* Portal v3: one article source shared by scene, lists, and the library. */
.hc3d-home-v3 { margin-top: 22px; }
.hc3d-home-v3 .hc3d-intro { gap: 20px; margin-bottom: 18px; align-items: center; }
.hc3d-home-v3 .hc3d-intro h1 { font-size: clamp(28px, 3.2vw, 43px); line-height: 1.3; }
.hc3d-home-v3 .hc3d-intro p { margin-top: 8px; font-size: 14px; }
.hc3d-library-entry { flex-shrink: 0; font-weight: 700; font-size: 13px; }
.hc3d-start-row { display: flex; gap: 20px; align-items: center; margin-bottom: 18px; }
.hc3d-home-search { display: flex; flex: 1; gap: 8px; padding: 7px; border: 1px solid var(--hc3d-line); border-radius: 14px; background: #fff; }
.hc3d-home-search input[type="search"] { box-sizing: border-box; width: 100%; min-width: 0; height: 40px; margin: 0; padding: 0 12px; border: 0; border-radius: 8px; background: transparent; font: inherit; font-size: 14px; color: var(--hc3d-ink); }
.hc3d-home-search button, .hc3d-library-filters button { flex-shrink: 0; min-height: 40px; padding: 0 22px; border: 0; border-radius: 10px; background: var(--hc3d-deep); color: #fff; font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.hc3d-start-tools { display: flex; gap: 16px; font-size: 13px; font-weight: 700; }
.hc3d-home-v3 .hc3d-domain-nav summary { min-height: 65px; padding-top: 12px; padding-bottom: 12px; }
.hc3d-explore-toolbar { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin: 22px 0 14px; }
.hc3d-explore-toolbar h2, .hc3d-service-heading h2 { margin: 0; color: var(--hc3d-ink); font-size: 20px; font-weight: 800; line-height: 1.4; }
.hc3d-explore-toolbar > div > span { display: block; margin-top: 5px; color: var(--hc3d-muted); font-size: 12px; }
.hc3d-home-v3 .hc3d-stage { border-radius: 22px 22px 0 0; box-shadow: none; }
.hc3d-scene-caption { padding: 8px 16px; margin: 0 !important; background: #fff; color: var(--hc3d-muted); font-size: 11px; text-align: right; }
.hc3d-home-v3 .hc3d-detail { border: 1px solid var(--hc3d-line); border-radius: 0 0 22px 22px; margin-bottom: 26px; scroll-margin-top: 85px; }
.hc3d-home-v3 .hc3d-topic-tabs { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.hc3d-home-v3 .hc3d-list-view { border-radius: 22px 22px 0 0; box-shadow: none; padding: 20px; }
.hc3d-home-v3 .hc3d-area-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.hc3d-home-v3 .hc3d-area-card { min-height: 85px; padding: 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; }
.hc3d-home-v3 .hc3d-area-card::before, .hc3d-home-v3 .hc3d-area-card::after { display: none; }
.hc3d-home-v3 .hc3d-area-card.is-active { background: #173b4c; color: #fff; border-color: #173b4c; }
.hc3d-home-v3 .hc3d-area-copy strong { display: block; font: inherit; font-size: 16px; font-weight: 800; line-height: 1.4; margin: 0; }
.hc3d-home-v3 .hc3d-area-copy small { display: block; color: var(--hc3d-muted); font-size: 11px; line-height: 1.5; margin-top: 5px; }
.hc3d-home-v3 .hc3d-area-card.is-active strong, .hc3d-home-v3 .hc3d-area-card.is-active small { color: #fff; }
.hc3d-more-link { display: inline-block; margin-top: 12px; color: #7c5b27; font-size: 13px; font-weight: 700; }
.hc3d-evidence { display: block; margin-top: 8px; color: var(--hc3d-muted); font-size: 11px; overflow-wrap: anywhere; }
.hc3d-services-section { padding: 25px 0 0; }
.hc3d-service-heading p { color: var(--hc3d-muted); font-size: 13px; margin: 6px 0 18px; }
.hc3d-service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.hc3d-service-grid a { display: flex; flex-direction: column; gap: 8px; padding: 22px; border: 1px solid var(--hc3d-line); border-radius: 16px; background: #fff; text-decoration: none; }
.hc3d-service-grid strong { color: var(--hc3d-ink); font-size: 15px; }
.hc3d-service-grid span { color: var(--hc3d-muted); font-size: 12px; line-height: 1.6; }
.hc3d-library-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 25px; }
.hc3d-library-heading h1 { font-size: clamp(26px, 3vw, 38px); font-weight: 800; line-height: 1.4; margin: 0; color: var(--hc3d-ink); }
.hc3d-library-heading a { font-size: 13px; flex-shrink: 0; }
.hc3d-library-filters { display: flex; align-items: end; gap: 14px; padding: 20px; background: #fff; border: 1px solid var(--hc3d-line); border-radius: 18px; }
.hc3d-library-filters label { display: flex; flex-direction: column; flex: 1; min-width: 0; gap: 8px; font-size: 12px; color: var(--hc3d-muted); }
.hc3d-library-filters .hc3d-query-label { flex: 2; }
.hc3d-library-filters select, .hc3d-library-filters input[type="search"] { box-sizing: border-box; width: 100%; height: 42px; border: 1px solid var(--hc3d-line); border-radius: 9px; padding: 0 10px; margin: 0; background: #fbfcfb; color: var(--hc3d-ink); font: inherit; font-size: 14px; }
.hc3d-library-filters > a { align-self: center; margin-top: 20px; white-space: nowrap; font-size: 12px; }
.hc3d-result-count { margin: 22px 0 16px; font-size: 13px; color: var(--hc3d-muted); }
.hc3d-library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.hc3d-library-grid .hc3d-article-card { display: flex; flex-direction: column; min-height: 155px; padding: 22px 36px 18px 20px; }
.hc3d-library-grid .hc3d-article-card strong { font-size: 15px; -webkit-line-clamp: 3; }
.hc3d-library-grid .hc3d-article-meta { margin-top: auto; padding-top: 15px; }
.hc3d-pagination { margin: 28px 0; }
.hc3d-pagination ul { display: flex; flex-wrap: wrap; list-style: none; gap: 8px; padding: 0; }
.hc3d-pagination li { list-style: none; }
.hc3d-pagination a, .hc3d-pagination span { display: block; padding: 8px 14px; background: #fff; border: 1px solid var(--hc3d-line); border-radius: 8px; }
.hc3d-pagination .current { background: var(--hc3d-deep); color: #fff; }
.hc3d-home-v3 a:focus-visible, .hc3d-library a:focus-visible, .hc3d-home-v3 button:focus-visible, .hc3d-library button:focus-visible { outline: 3px solid #bf8d31; outline-offset: 3px; }
.hc3d-home-v3 a, .hc3d-library a { overflow-wrap: anywhere; }
@media (max-width: 1100px) {
    .hc3d-start-row { flex-direction: column; align-items: stretch; gap: 12px; }
    .hc3d-start-tools { padding-left: 6px; }
    .hc3d-library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
    .hc3d-home-v3 .hc3d-intro { display: block; }
    .hc3d-library-entry { display: inline-block; margin-top: 10px; }
    .hc3d-explore-toolbar { flex-wrap: wrap; gap: 12px; }
    .hc3d-explore-toolbar .hc3d-view-switch { width: 100%; }
    .hc3d-home-v3 .hc3d-area-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hc3d-home-v3 .hc3d-area-card { min-height: 68px; padding: 12px; }
    .hc3d-home-v3 .hc3d-list-view { padding: 12px; }
    .hc3d-home-v3 .hc3d-detail { min-height: 0; padding: 22px 17px; }
    .hc3d-home-v3 .hc3d-point-heading { padding-right: 35px; }
    .hc3d-home-v3 .hc3d-point-heading small { letter-spacing: 0; }
    .hc3d-home-v3 .hc3d-topic-tabs button { font-size: 13px; min-height: 42px; }
    .hc3d-home-v3 .hc3d-article-stack { grid-template-columns: 1fr; }
    .hc3d-service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .hc3d-service-grid a { padding: 16px; }
    .hc3d-library-heading { align-items: start; flex-direction: column; }
    .hc3d-library-filters { flex-wrap: wrap; padding: 15px; gap: 12px; }
    .hc3d-library-filters label { flex: 1 1 calc(50% - 12px); }
    .hc3d-library-filters .hc3d-query-label { flex: 1 1 100%; }
    .hc3d-library-filters > a { margin: 0; }
}
@media (max-width: 560px) {
    .hc3d-home-v3 .hc3d-intro h1 { font-size: 28px; }
    .hc3d-home-v3 .hc3d-intro p { font-size: 13px; line-height: 1.7; }
    .hc3d-home-search input[type="search"] { padding: 0 6px; font-size: 12px; }
    .hc3d-home-search button { padding: 0 12px; }
    .hc3d-home-v3 .hc3d-domain-nav summary { min-height: 50px; }
    .hc3d-home-v3 .hc3d-domain-nav summary { position: relative; }
    .hc3d-home-v3 .hc3d-domain-menu { position: absolute; top: 100%; bottom: auto; left: 0; right: 0; width: auto; }
    .hc3d-home-v3 .hc3d-domain-nav details { position: static; }
    .hc3d-explore-toolbar > div > span { display: none; }
    .hc3d-explore-toolbar h2 { font-size: 18px; }
    .hc3d-home-v3 .hc3d-hotspot-label { display: inline; }
    .hc3d-home-v3 .hc3d-hotspot { padding: 5px 7px 5px 5px; gap: 3px; font-size: 10px; }
    .hc3d-home-v3 .hc3d-hotspot-dot { width: 10px; height: 10px; border-width: 2px; }
    .hc3d-home-v3 .hc3d-hotspot[data-hc3d-point="safety"] { transform: translate(-70%, -110%); }
    .hc3d-home-v3 .hc3d-hint { top: 8px; left: 8px; padding: 6px 9px; font-size: 9px; }
    .hc3d-home-v3 .hc3d-area-copy strong { font-size: 14px; }
    .hc3d-service-grid span { font-size: 11px; }
    .hc3d-library-grid { grid-template-columns: 1fr; }
}