:root {
  --bg: #0d0f14;
  --panel: #14171f;
  --line: #262b36;
  --text: #e8eaf0;
  --muted: #8b91a1;
  --accent: #d9b26a;
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

.view { min-height: 100vh; }

/* ---------- 登录 ---------- */
#login-view {
  position: relative;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 20% 30%, rgba(217, 178, 106, .18), transparent 45%),
    radial-gradient(circle at 78% 70%, rgba(96, 130, 180, .20), transparent 50%),
    radial-gradient(circle at 60% 20%, rgba(140, 90, 120, .16), transparent 45%);
  filter: blur(40px);
  animation: drift 18s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to   { transform: translate3d(2%, 2%, 0) scale(1.06); }
}

.login-card {
  position: relative;
  width: min(380px, 100%);
  padding: 40px 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(20, 23, 31, .82);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
  animation: rise .5s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.login-card h1 {
  margin: 0;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: .22em;
}

.login-card .sub {
  margin: 8px 0 28px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .08em;
}

.login-card label {
  display: block;
  margin-bottom: 16px;
}

.login-card label span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
}

.login-card input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0f1219;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.login-card input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(217, 178, 106, .14);
}

.login-card .primary {
  width: 100%;
  margin-top: 8px;
  padding: 13px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #191307;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .12em;
  cursor: pointer;
  transition: transform .15s, filter .2s;
}

.login-card .primary:hover { filter: brightness(1.08); }
.login-card .primary:active { transform: scale(.985); }

.error {
  min-height: 18px;
  margin: 0 0 10px;
  color: #e06b6b;
  font-size: 12.5px;
}

.shake { animation: shake .34s; }

@keyframes shake {
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.hint {
  margin: 22px 0 0;
  color: #6d7385;
  font-size: 12px;
  text-align: center;
  letter-spacing: .04em;
}

/* ---------- 展馆 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 18px;
  letter-spacing: .18em;
}

.brand span {
  margin-left: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .1em;
}

.ghost {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}

.ghost:hover { color: var(--text); border-color: var(--accent); }

.gallery { padding: clamp(20px, 4vw, 40px) clamp(20px, 5vw, 64px) 80px; }

.lead {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .08em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(14px, 2vw, 22px);
}

.card {
  position: relative;
  display: block;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: transform .28s cubic-bezier(.2, .8, .2, 1), border-color .28s, box-shadow .28s;
  animation: fade .5s both;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(217, 178, 106, .55);
  box-shadow: 0 18px 46px rgba(0, 0, 0, .45);
}

.card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .5s;
}

.card:hover img { transform: scale(1.04); }

.card .meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px 16px;
}

.card .count {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(8, 10, 14, .72);
  color: #fff;
  font-size: 11.5px;
  letter-spacing: .08em;
  backdrop-filter: blur(6px);
}

.card .meta strong { font-size: 15px; font-weight: 600; letter-spacing: .08em; }
.card .meta small { color: var(--muted); font-size: 12px; }

/* ---------- 大图 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(8px, 2vw, 24px);
  padding: clamp(16px, 4vw, 48px);
  background: rgba(6, 7, 10, .92);
  backdrop-filter: blur(6px);
  animation: fade .2s both;
}

.lightbox figure {
  margin: 0;
  width: min(1100px, 92vw);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lb-stage {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, calc(72vh * 16 / 9));
  aspect-ratio: 16 / 9;
  margin-inline: auto;
  border-radius: 10px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(217, 178, 106, .10), transparent 60%),
    #090b10;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .6);
}

.lightbox img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 10px;
  opacity: 0;
  transition: opacity .25s ease;
}

.lightbox img.ready {
  opacity: 1;
  animation: zoom .35s cubic-bezier(.2, .8, .2, 1) both;
}

@keyframes zoom {
  from { opacity: 0; transform: scale(.985); }
  to   { opacity: 1; transform: none; }
}

.lb-loader {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: .06em;
}

.spinner {
  width: 30px;
  height: 30px;
  border: 2px solid rgba(255, 255, 255, .14);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.lightbox figcaption h2 {
  margin: 0 0 6px;
  font-size: 20px;
  letter-spacing: .12em;
}

.lightbox figcaption p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
}

.lb-close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(20, 23, 31, .8);
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}

.lb-close:hover { border-color: var(--accent); }

.lb-nav {
  flex: 0 0 auto;
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(20, 23, 31, .8);
  color: var(--text);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.lb-nav:hover { border-color: var(--accent); }

@media (max-width: 640px) {
  .lb-nav { display: none; }
  .login-card { padding: 32px 22px 22px; }
}