:root {
  --ink: #11110f;
  --paper: #f3f2ed;
  --panel: #fff;
  --line: #d8d7d1;
  --muted: #72716b;
  --accent: #ff5b35;
  --radius: 14px;
  font-family: "Avenir Next", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:active { transform: translateY(1px); }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }

/* Entrance */
.portal { min-height: 100dvh; overflow: hidden; position: relative; background: #080808; color: white; isolation: isolate; }
.portal::after { content:""; position:absolute; inset:0; pointer-events:none; z-index:4; background: radial-gradient(circle, transparent 30%, rgba(0,0,0,.74) 100%); }
.portal-noise { position:absolute; inset:0; z-index:5; pointer-events:none; opacity:.18; background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E"); mix-blend-mode:soft-light; }
.portal-brand { position:fixed; z-index:9; top:24px; left:28px; letter-spacing:.12em; font-weight:700; }
.portal-admin { position:fixed; z-index:9; top:18px; right:22px; color:#aaa; border:1px solid #555; background:#111a; padding:10px 15px; border-radius:999px; transform:scale(0.7); transform-origin:top right; }
.portal-admin:hover { color:#fff; border-color:#fff; }
.ring-stage { position:absolute; inset:0; z-index:1; perspective:900px; transform-style:preserve-3d; touch-action:none; }
.ring { position:absolute; left:50%; top:50%; width:0; height:0; transform-style:preserve-3d; will-change:transform; }
.ring::before { content:""; position:absolute; left:0; top:0; width:calc(var(--radius) * 2); height:calc(var(--radius) * 2); border:1px solid rgba(255,255,255,.09); border-radius:50%; transform:translate(-50%,-50%); box-shadow:0 0 70px rgba(255,255,255,.025) inset; }
.orbit-card { position:absolute; left:-48px; top:-64px; width:96px; height:128px; margin:0; backface-visibility:visible; }
.orbit-card img { width:100%; height:100%; object-fit:contain; opacity:.44; filter:saturate(.5) brightness(.68) contrast(.96); transition:opacity .35s ease, filter .35s ease; }
.portal-copy { position:absolute; inset:0; z-index:7; display:grid; place-content:center; text-align:center; pointer-events:none; }
.portal-copy::before { content:""; position:absolute; z-index:-1; left:50%; top:50%; width:min(720px,90vw); height:min(430px,58vh); transform:translate(-50%,-50%); background:radial-gradient(ellipse,rgba(0,0,0,.92) 0%,rgba(0,0,0,.72) 38%,transparent 76%); pointer-events:none; }
.portal-kicker { margin:0 0 12px; color:#aaa; font-size:12px; letter-spacing:.24em; }
.portal-copy h1 { margin:0; font-size:clamp(58px, 9vw, 138px); letter-spacing:-.075em; line-height:.88; text-shadow:0 4px 35px rgba(0,0,0,.9); }
.portal-copy p { margin:20px auto 26px; max-width:38ch; color:#a7a7a7; line-height:1.6; }
.portal-copy button { pointer-events:auto; margin:auto; border:0; color:#111; background:white; min-width:160px; padding:15px 24px; border-radius:999px; font-weight:700; transition:.2s; }
.portal-copy h1 + button { margin-top:28px; }
.portal-copy button:hover { background:var(--accent); color:#fff; transform:scale(1.04); }
.drag-hint { position:absolute; z-index:8; bottom:22px; left:50%; transform:translateX(-50%); color:#777; font-size:11px; letter-spacing:.14em; }

/* Shared application shell */
.app-shell { min-height:100dvh; }
.topbar { height:72px; padding:0 clamp(18px,4vw,58px); display:flex; align-items:center; gap:28px; border-bottom:1px solid color-mix(in srgb,var(--line) 72%,transparent); background:rgba(243,242,237,.88); backdrop-filter:blur(18px); position:sticky; top:0; z-index:20; }
.brand { font-weight:800; letter-spacing:-.055em; font-size:22px; white-space:nowrap; }
.brand-dot { color:var(--accent); }
.topnav { display:flex; gap:6px; margin-left:auto; }
.topnav a { padding:9px 13px; border-radius:999px; color:#666; font-size:14px; transition:background .2s,color .2s; }
.topnav a.active, .topnav a:hover { background:#111; color:#fff; }
.page { width:min(1480px, calc(100% - 48px)); margin:0 auto; padding:48px 0 96px; }
.page-heading { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:24px; align-items:end; margin-bottom:34px; }
.page-heading h1 { margin:0; font-size:clamp(42px,7vw,92px); letter-spacing:-.075em; line-height:.9; }
.page-heading p { margin:10px 0 0; color:var(--muted); }
.count-label { font-size:13px; color:var(--muted); white-space:nowrap; }
.gallery-intro { display:grid; grid-template-columns:minmax(0,1.5fr) minmax(260px,.5fr); align-items:end; gap:48px; padding:18px 0 42px; border-bottom:1px solid var(--line); }
.gallery-index { margin:0 0 18px; color:var(--accent); font-size:12px; font-weight:700; letter-spacing:.16em; }
.gallery-intro h1 { max-width:800px; margin:0; font-size:clamp(58px,8.2vw,126px); letter-spacing:-.085em; line-height:.82; text-wrap:balance; }
.gallery-desc { margin:14px 0 0; color:#666; font-size:14px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.gallery-summary { padding:0 0 7px; }
.gallery-summary p { max-width:34ch; margin:0 0 24px; color:#666; font-size:15px; line-height:1.75; text-wrap:pretty; }
.summary-actions { display:flex; gap:10px; flex-shrink:0; margin-bottom:18px; justify-content:flex-end; }
.gallery-metrics { display:flex; gap:26px; padding-top:18px; border-top:1px solid var(--line); justify-content:flex-end; }
.metric { display:grid; gap:3px; }
.metric strong { font-size:24px; letter-spacing:-.05em; font-variant-numeric:tabular-nums; }
.metric span { color:var(--muted); font-size:11px; }
.filter-dock { position:sticky; top:72px; z-index:15; margin:0 -12px 28px; padding:14px 12px 0; background:linear-gradient(var(--paper) 78%,transparent); }
.search-box { display:flex; gap:0; border:1px solid var(--line); border-radius:9px; overflow:hidden; background:#fff; }
.search-box:focus-within { border-color:#777; box-shadow:0 0 0 3px #1111; }
.search-box .field { flex:1; border:none !important; border-radius:0 !important; box-shadow:none !important; min-width:0; }
.search-box .btn-search { min-height:46px; min-width:46px; padding:0; display:flex; align-items:center; justify-content:center; background:#f5f5f5; border:none; border-left:1px solid var(--line); border-radius:0; color:#666; font-size:18px; cursor:pointer; transition:background .15s,color .15s; }
.search-box .btn-search:hover { background:#e8e8e8; color:#111; }
.toolbar { display:grid; grid-template-columns:minmax(280px,1fr) 220px auto; gap:9px; padding:10px; border:1px solid var(--line); border-radius:14px; background:rgba(255,255,255,.88); box-shadow:0 12px 32px rgba(74,70,59,.08); backdrop-filter:blur(16px); }
.field, .select, .btn { min-height:46px; border:1px solid var(--line); border-radius:9px; background:#fff; color:var(--ink); padding:0 15px; outline:none; }
.field:focus, .select:focus { border-color:#777; box-shadow:0 0 0 3px #1111; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; font-weight:700; white-space:nowrap; }
.btn-dark { background:#111; color:#fff; border-color:#111; }
.btn-accent { background:var(--accent); color:#fff; border-color:var(--accent); }
.btn-ghost { background:transparent; }
.btn:disabled { opacity:.38; cursor:not-allowed; }
.category-strip { display:flex; gap:4px; overflow:auto; padding:10px 2px 12px; scrollbar-width:none; }
.category-strip::-webkit-scrollbar { display:none; }
.chip { border:0; border-radius:7px; background:transparent; padding:9px 13px; white-space:nowrap; color:#777; font-size:13px; transition:.2s; }
.chip:hover { color:#111; background:#e7e5df; }
.chip.active { background:#111; color:#fff; }
.gallery-results-head { display:flex; justify-content:space-between; align-items:center; gap:20px; margin:0 0 17px; padding-top:4px; }
.gallery-results-head strong { font-size:14px; letter-spacing:-.01em; }
.gallery-results-head span { color:var(--muted); font-size:12px; font-variant-numeric:tabular-nums; }
.gallery-grid { display:grid; grid-template-columns:repeat(5, minmax(0,1fr)); gap:clamp(10px,1.5vw,22px); align-items:start; }
.image-card { position:relative; min-width:0; }
.image-wrap { position:relative; overflow:hidden; background:#ddd; border-radius:11px; aspect-ratio:4/5; }
.image-wrap img { width:100%; height:100%; object-fit:cover; display:block; transition:transform .45s ease; }
.image-card:hover img { transform:scale(1.025); }
.check { position:absolute; z-index:3; top:12px; left:12px; width:25px; height:25px; accent-color:var(--accent); }
.download-one { position:absolute; z-index:3; right:12px; bottom:12px; border:0; border-radius:999px; background:#fff; color:#111; padding:9px 12px; font-size:12px; opacity:0; transform:translateY(6px); transition:.2s; }
.image-card:hover .download-one, .download-one:focus { opacity:1; transform:none; }
.image-meta { display:grid; gap:5px; padding:11px 2px 4px; }
.image-meta strong { font-size:14px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.image-meta span { color:var(--muted); font-size:11px; white-space:nowrap; }
.empty { grid-column:1/-1; padding:90px 24px; border-top:1px solid var(--line); text-align:center; color:var(--muted); }

/* Admin */
.admin-layout { display:grid; grid-template-columns:310px minmax(0,1fr); gap:clamp(28px,4vw,64px); align-items:start; border-top:1px solid var(--line); padding-top:30px; }
.admin-layout > aside { position:sticky; top:102px; max-height:calc(100vh - 130px); overflow-y:auto; }
.panel { background:transparent; border:0; border-radius:0; padding:0; }
.panel h2 { margin:0 0 4px; font-size:20px; letter-spacing:-.03em; }
.panel-intro { margin:0 0 22px; color:var(--muted); font-size:13px; line-height:1.5; }
.form-grid { display:grid; gap:16px; }
#image-form { grid-template-columns:repeat(2,minmax(0,1fr)); padding:20px; border-radius:14px; background:#e9e7e1; }
#image-form .dropzone, #image-form .btn { grid-column:1/-1; }
.form-group { display:grid; gap:7px; }
.form-group label { font-size:13px; font-weight:700; }
.form-group small { color:var(--muted); line-height:1.45; }
.form-group input, .form-group select { width:100%; min-height:44px; border:1px solid var(--line); border-radius:9px; padding:0 12px; background:#fff; color:#111; }
.dropzone { border:1px dashed #aaa; border-radius:10px; padding:22px 14px; background:rgba(255,255,255,.45); text-align:center; color:var(--muted); position:relative; }
.dropzone input { position:absolute; inset:0; opacity:0; cursor:pointer; }
.category-tree { margin-top:22px; border-top:1px solid var(--line); }
.tree-group { padding:16px 0; border-bottom:1px solid var(--line); }
.tree-head, .tree-sub { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.tree-head strong { font-size:14px; }
.tree-sub { padding:9px 0 0 16px; color:#666; font-size:13px; }
.icon-btn { border:0; background:transparent; color:#999; padding:4px; }
.icon-btn:hover { color:#d22; }
.admin-images { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:12px; }
.admin-card { border:1px solid var(--line); border-radius:12px; overflow:hidden; background:#fff; }
.admin-card img { display:block; width:100%; aspect-ratio:1/1; object-fit:cover; background:#ddd; }
.admin-card-foot { padding:11px; display:grid; grid-template-columns:minmax(0,1fr) auto; align-items:center; gap:8px; }
.admin-card-foot strong { font-size:13px; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
.admin-card-foot small { display:block; color:var(--muted); margin-top:3px; }
.danger { color:#c31e1e; }
.toast { position:fixed; z-index:99; left:50%; bottom:28px; transform:translate(-50%,20px); padding:12px 18px; border-radius:999px; background:#111; color:#fff; opacity:0; pointer-events:none; transition:.25s; box-shadow:0 12px 40px #0003; }
.toast.show { opacity:1; transform:translate(-50%,0); }

@media (max-width:1000px) {
  .gallery-intro { grid-template-columns:1fr; gap:26px; }
  .gallery-summary { display:grid; grid-template-columns:1fr auto; gap:30px; align-items:end; }
  .gallery-desc { white-space:normal; }
  .gallery-grid { grid-template-columns:repeat(3,minmax(0,1fr)); }
  .image-card, .image-card:nth-child(n) { grid-column:auto; }
  .admin-layout { grid-template-columns:1fr; }
  .admin-layout > aside { position:static; }
  .admin-images { grid-template-columns:repeat(3,minmax(0,1fr)); }
}
@media (max-width:720px) {
  .portal-brand { left:18px; }
  .portal-copy { padding:24px; }
  .portal-copy p { font-size:14px; max-width:30ch; }
  .orbit-card { width:70px; height:94px; left:-35px; top:-47px; }
  .topbar { height:62px; padding:0 16px; gap:8px; }
  .topnav a { padding:9px 8px; font-size:13px; }
  .page { width:min(100% - 28px, 1480px); padding-top:24px; }
  .page-heading { grid-template-columns:1fr; }
  .gallery-intro { padding:10px 0 28px; }
  .gallery-intro h1 { font-size:clamp(52px,18vw,78px); }
  .gallery-summary { display:block; }
  .summary-actions { justify-content:flex-start; margin-bottom:18px; }
  .filter-dock { top:62px; margin-inline:-5px; }
  .toolbar { grid-template-columns:1fr 1fr; padding:7px; }
  .toolbar .search-box { grid-column:1/-1; }
  .gallery-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
  .image-card, .image-card:nth-child(n) { grid-column:span 1; }
  .image-meta { display:block; }
  .image-meta span { display:block; margin-top:5px; }
  .download-one { opacity:1; transform:none; }
  .admin-images { grid-template-columns:repeat(2,minmax(0,1fr)); }
  #image-form { grid-template-columns:1fr; padding:15px; }
  #image-form > * { grid-column:1 !important; }
}
@media (prefers-reduced-motion:reduce) { *, *::before, *::after { scroll-behavior:auto !important; transition-duration:.01ms !important; animation-duration:.01ms !important; } }

/* Admin login */
.login-page { display: flex; justify-content: center; padding-top: 9vh; }
.login-panel { width: 100%; max-width: 420px; height: fit-content; }
.login-panel h1 { margin: 0 0 6px; font-size: 26px; letter-spacing: .01em; }
.login-error { margin: 0; color: #c3352b; font-size: 14px; }
.login-loading { padding: 90px 0; text-align: center; color: var(--muted); }
.admin-side { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }

/* Image edit modal */
.edit-modal { position:fixed; inset:0; z-index:60; display:flex; align-items:center; justify-content:center; padding:22px; }
.edit-backdrop { position:absolute; inset:0; background:rgba(12,12,12,.55); -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px); }
.edit-panel { position:relative; width:100%; max-width:520px; max-height:88dvh; overflow:auto; background:#fff; border-radius:14px; padding:28px; box-shadow:0 30px 80px rgba(0,0,0,.35); }
.edit-panel h2 { margin:0 0 4px; font-size:20px; letter-spacing:-.03em; }
.edit-preview { height:180px; margin-bottom:18px; border-radius:11px; background:#f0efe9; display:flex; align-items:center; justify-content:center; overflow:hidden; }
.edit-preview img { max-width:100%; max-height:100%; object-fit:contain; }
.edit-actions { display:flex; justify-content:flex-end; gap:10px; }
.admin-card-actions { display:flex; align-items:center; gap:2px; }

/* Lightbox 图片预览 */
.lightbox { position:fixed; inset:0; z-index:70; display:flex; align-items:center; justify-content:center; }
.lightbox.hidden { display:none; }
.lightbox-backdrop { position:absolute; inset:0; background:rgba(12,12,12,.88); cursor:pointer; }
.lightbox-content { position:relative; max-width:92vw; max-height:92vh; display:flex; flex-direction:column; align-items:center; }
.lightbox-content img { max-width:92vw; max-height:78vh; object-fit:contain; border-radius:8px; box-shadow:0 20px 60px rgba(0,0,0,.5); }
.lightbox-close { position:absolute; top:-40px; right:0; border:0; background:none; color:#fff; font-size:36px; cursor:pointer; line-height:1; opacity:.7; transition:opacity .2s; }
.lightbox-close:hover { opacity:1; }
.lightbox-prev, .lightbox-next { position:absolute; top:50%; transform:translateY(-50%); border:0; background:rgba(255,255,255,.12); color:#fff; font-size:42px; width:50px; height:80px; cursor:pointer; border-radius:6px; opacity:.6; transition:opacity .2s; display:flex; align-items:center; justify-content:center; }
.lightbox-prev:hover, .lightbox-next:hover { opacity:1; background:rgba(255,255,255,.2); }
.lightbox-prev { left:-60px; }
.lightbox-next { right:-60px; }
.lightbox-info { text-align:center; margin-top:14px; color:#ddd; }
.lightbox-info strong { display:block; font-size:15px; color:#fff; }
.lightbox-info span { font-size:12px; color:#aaa; }
@media(max-width:768px) {
  .lightbox-prev { left:8px; }
  .lightbox-next { right:8px; }
  .lightbox-close { top:-36px; right:4px; font-size:28px; }
}


/* 轱辘压图入口按钮 */
.summary-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.summary-row p { margin: 0; }
.summary-actions { display: flex; gap: 10px; flex-shrink: 0; }
.compress-link-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 22px; height: 46px; flex-shrink: 0; white-space: nowrap;
  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
  color: #fff; border-radius: 12px; text-decoration: none;
  font-size: 14px; font-weight: 600; letter-spacing: .03em;
  box-shadow: 0 6px 16px rgba(108, 92, 231, .28);
  transition: transform .18s, box-shadow .18s, background .18s;
}
.compress-link-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(108, 92, 231, .38); }
.metrics-compress-btn { height: 38px; padding: 0 16px; border-radius: 10px; font-size: 12px; align-self: center; box-shadow: 0 4px 12px rgba(108, 92, 231, .24); }
.metrics-compress-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(108, 92, 231, .32); }
@media (max-width: 760px) {
  .summary-row { flex-direction: column; align-items: stretch; }
  .summary-actions { width: 100%; }
  .compress-link-btn { width: 100%; }
}