/* ==========================================================
   摄影作品：列表页 / 详情页（通用视觉见 ark-ui.css）
   ========================================================== */

.photo-h1-en {
    display: block;
    margin-top: .4rem;
    font-family: var(--serif);
    font-style: italic;
    font-weight: 500;
    font-size: .42em;
    letter-spacing: .04em;
    color: #9fb0cc;
}

/* ---------- 分类切换 ---------- */
.photo-cates { display: flex; flex-wrap: wrap; gap: .6rem; margin: 0 0 2.2rem; }

/* ---------- 作品卡片 ---------- */
.photo-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
}
.photo-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform .3s var(--ease), border-color .3s ease, box-shadow .3s ease;
}
.photo-card:nth-child(4n+1) { --tone: var(--cyan); }
.photo-card:nth-child(4n+2) { --tone: var(--blue); }
.photo-card:nth-child(4n+3) { --tone: var(--magenta); }
.photo-card:nth-child(4n+4) { --tone: var(--amber); }
.photo-card:hover { border-color: color-mix(in srgb, var(--tone) 50%, transparent); box-shadow: 0 26px 50px -24px rgba(0,0,0,.9), 0 0 36px -18px var(--tone); }
.photo-card__img { display: block; position: relative; overflow: hidden; aspect-ratio: 3 / 2; background: #0c1120; }
.photo-card__img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(4,6,12,.55), transparent 45%);
    pointer-events: none;
}
.photo-card__img img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(.9); transition: transform .7s var(--ease), filter .4s ease; }
.photo-card:hover .photo-card__img img { transform: scale(1.06); filter: saturate(1.08); }
.photo-card__body { display: flex; flex-direction: column; gap: .5rem; padding: 1.15rem 1.25rem 1.3rem; flex: 1; }
.photo-card__date { color: var(--tone); font-size: .72rem; }
.photo-card__title { margin: 0; font-size: 1.08rem; font-weight: 600; line-height: 1.45; }
.photo-card__title a { color: var(--ink); }
.photo-card__title a:hover { color: #fff; }
.photo-card__desc {
    margin: 0;
    font-size: .88rem;
    line-height: 1.75;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.photo-card__more { margin-top: auto; padding-top: .3rem; font-size: .84rem; color: var(--blue); }
.photo-card__more span { display: inline-block; transition: transform .25s var(--ease); }
.photo-card:hover .photo-card__more span { transform: translateX(4px); }

/* 首张作品放大 */
.photo-card.is-feature { grid-column: span 2; grid-row: span 2; }
.photo-card.is-feature .photo-card__img { aspect-ratio: auto; flex: 1 1 auto; min-height: 340px; }
.photo-card.is-feature .photo-card__body { flex: 0 0 auto; }
.photo-card.is-feature .photo-card__title { font-size: clamp(1.3rem, 2.2vw, 1.75rem); }
.photo-card.is-feature .photo-card__desc { -webkit-line-clamp: 4; font-size: .95rem; }
.photo-cards--four { grid-template-columns: repeat(4, 1fr); }
.photo-cards--four .photo-card__title { font-size: .98rem; }

.photo-empty { padding: 3rem 2rem; text-align: center; }
.photo-empty .ark-eyebrow { justify-content: center; }
.photo-empty p:last-child { color: var(--mute); margin: 0; }

/* ---------- 详情：密排网格图集（JS 按比例加 is-pano / is-tall） ---------- */
.photo-gallery-sec { position: relative; background: var(--bg); padding: .5rem 1.2rem 2rem; }
.photo-grid {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: clamp(200px, 21vw, 330px);
    grid-auto-flow: dense;
    gap: 12px;
}
.photo-item { margin: 0; position: relative; min-width: 0; }
.photo-item--w2, .photo-item.is-pano { grid-column: span 2; }
.photo-item--w3 { grid-column: 1 / -1; }
.photo-item.is-tall { grid-row: span 2; }
.photo-item__link {
    position: relative;
    display: block;
    height: 100%;
    overflow: hidden;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #0c1120;
    cursor: zoom-in;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.photo-item__link img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: transform .7s var(--ease), filter .4s ease, opacity .6s ease; }
.photo-item.is-loaded .photo-item__link img { opacity: 1; }
.photo-item__link:hover, .photo-item__link:focus-visible { border-color: rgba(143,178,255,.5); box-shadow: 0 20px 40px -18px rgba(0,0,0,.8), 0 0 30px -12px rgba(109,154,248,.6); outline: none; }
.photo-item__link:hover img { transform: scale(1.04); }
.photo-item__zoom {
    position: absolute;
    top: .7rem; right: .7rem;
    width: 34px; height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.5);
    background: rgba(4,6,12,.45);
    color: #fff;
    font-size: .85rem;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity .3s ease, transform .3s ease;
}
.photo-item__link:hover .photo-item__zoom, .photo-item__link:focus-visible .photo-item__zoom { opacity: 1; transform: none; }
.photo-item figcaption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 2.4rem 1rem .8rem;
    border-radius: 0 0 10px 10px;
    background: linear-gradient(0deg, rgba(4,6,12,.88), transparent);
    color: #fff;
    font-size: .86rem;
    line-height: 1.45;
    pointer-events: none;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity .35s ease, transform .35s var(--ease);
}
.photo-item figcaption b { display: block; font-weight: 500; }
.photo-item figcaption span { display: block; margin-top: .2rem; font: .72rem var(--mono); letter-spacing: .06em; color: #2fd3c0; }
.photo-item:hover figcaption, .photo-item:focus-within figcaption { opacity: 1; transform: none; }
.photo-item figcaption .photo-item__shot { color: #c3cde0; font-size: .66rem; letter-spacing: .02em; }

/* ---------- 详情：关于 / 事实 / 许可 ---------- */
.photo-about { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 2.4rem; align-items: start; }
.photo-about__main h2, .photo-more-sec h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 1.2rem; }
.photo-about__desc { font-size: 1.08rem; line-height: 1.9; color: #d3dbe8; margin-bottom: 1.4rem; padding-left: 1rem; border-left: 2px solid var(--cyan); }
.photo-about__side { display: flex; flex-direction: column; gap: 1.2rem; position: sticky; top: 90px; }
.photo-facts, .photo-license { padding: 1.4rem 1.4rem 1.5rem; }
.photo-facts dl { margin: 0 0 1rem; }
.photo-facts dl > div { display: flex; gap: 1rem; padding: .6rem 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.photo-facts dt { width: 4.6rem; flex-shrink: 0; color: var(--mute); font-weight: 400; }
.photo-facts dd { margin: 0; color: var(--ink); }
.photo-facts dd a { color: var(--ink); border-bottom: 1px solid rgba(109,154,248,.5); }
.photo-tags { gap: .4rem; }
.photo-tags .ark-chip { font-size: .78rem; padding: .3rem .7rem; }
.photo-license { border-color: rgba(242,184,96,.22); background: linear-gradient(120deg, rgba(242,184,96,.06), rgba(255,255,255,.02) 60%); }
.photo-license .ark-eyebrow { color: var(--amber); }
.photo-license p { margin: 0; font-size: .86rem; line-height: 1.8; color: var(--text); }
.photo-license p + p { margin-top: .6rem; }
.photo-license__url { word-break: break-all; font-size: .78rem !important; color: var(--mute) !important; }

/* ---------- 响应式 ---------- */
@media (max-width: 1199.98px) {
    .photo-cards--four { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991.98px) {
    .photo-cards { grid-template-columns: repeat(2, 1fr); }
    .photo-card.is-feature { grid-row: auto; }
    .photo-card.is-feature .photo-card__img { aspect-ratio: 16 / 9; min-height: 0; flex: none; }
    .photo-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: clamp(180px, 34vw, 300px); }
    .photo-item--w2, .photo-item.is-pano, .photo-item--w3 { grid-column: 1 / -1; }
    .photo-about { grid-template-columns: 1fr; }
    .photo-about__side { position: static; }
}
@media (max-width: 575.98px) {
    .photo-cards, .photo-cards--four { grid-template-columns: 1fr; }
    .photo-card.is-feature { grid-column: auto; }
    .photo-gallery-sec { padding: .3rem .4rem 1.5rem; }
    .photo-grid { grid-template-columns: 1fr; grid-auto-rows: 62vw; gap: 8px; }
    .photo-item.is-tall { grid-row: span 2; }
    .photo-item figcaption { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
    .photo-card, .photo-card__img img, .photo-item__link img, .photo-item figcaption, .photo-item__zoom { transition: none !important; }
}