:root {
  --bg: #0a0a0f;
  --bg-2: #13111c;
  --panel: #15131e;
  --panel-2: #1d1a28;
  --border: #2a2740;
  --text: #e9e7f2;
  --muted: #8e8aa6;
  --accent: #7C5CFC;
  --accent-2: #9d7bff;
  --ok: #34d399;
  --warn: #fb923c;
  --err: #f87171;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ===== Header ===== */
.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 16px 36px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.05);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 16px; color: #fff; box-shadow: 0 4px 18px rgba(124,92,252,.35);
}
.logo.small { width: 26px; height: 26px; border-radius: 7px; font-size: 12px; }
.topbar h1 { font-size: 17px; margin: 0; letter-spacing: .3px; font-weight: 600; }
.topbar .sub { margin: 1px 0 0; font-size: 11px; color: var(--muted); letter-spacing: 1.4px; }
.navmenu { display: flex; gap: 28px; margin-left: 36px; }
.navmenu a { font-size: 14px; color: var(--text); opacity: .8; transition: .15s; }
.navmenu a:hover { opacity: 1; color: var(--accent-2); }
.keybox { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.auth-name { font-size: 13px; color: var(--accent-2); font-weight: 600; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.auth-avatar { font-size: 16px; line-height: 1; opacity: .9; }

/* ===== Pills / Buttons ===== */
.pill { border-radius: 999px !important; }
.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: none; cursor: pointer; font-weight: 600;
  padding: 10px 22px; font-size: 14px; transition: .15s;
}
.primary:hover { filter: brightness(1.08); }
.primary:disabled { opacity: .6; cursor: not-allowed; }
.ghost {
  background: transparent; color: var(--text); border: 1px solid var(--border);
  padding: 8px 16px; border-radius: 999px; font-size: 13px; cursor: pointer;
  display: inline-block; transition: .15s; text-decoration: none;
}
.ghost:hover { border-color: var(--accent); color: var(--accent-2); }
.ghost.small { padding: 5px 12px; font-size: 12px; border-radius: 999px; }

/* ===== Hero ===== */
.hero { padding: 90px 36px 70px; max-width: 1080px; margin: 0 auto; }
.eyebrow { font-size: 12px; color: var(--muted); letter-spacing: 2.4px; margin: 0 0 16px; text-transform: uppercase; }
.hero h2 { font-size: 60px; line-height: 1.15; font-weight: 300; margin: 0 0 18px; letter-spacing: -1px; color: #fff; }
.hero .lead { font-size: 16px; color: var(--muted); max-width: 640px; line-height: 1.7; margin: 0 0 28px; }

/* ===== Capabilities ===== */
.capabilities { padding: 60px 36px; max-width: 1180px; margin: 0 auto; }
.capabilities h2 { font-size: 32px; font-weight: 500; margin: 0 0 32px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ccard { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 24px; transition: .2s; }
.ccard:hover { border-color: var(--accent); transform: translateY(-2px); }
.cicon {
  width: 38px; height: 38px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(124,92,252,.15), rgba(157,123,255,.15));
  color: var(--accent-2); font-size: 18px; margin-bottom: 18px;
  border: 1px solid rgba(124,92,252,.25);
}
.ccard h3 { font-size: 17px; font-weight: 600; margin: 0 0 10px; }
.ccard p { font-size: 13px; color: var(--muted); line-height: 1.7; margin: 0 0 16px; min-height: 60px; }

/* ===== Workspace ===== */
.workspace { max-width: 1180px; margin: 30px auto 80px; padding: 0 36px; display: grid; grid-template-columns: 380px 1fr; gap: 24px; }
.composer { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 20px; align-self: start; position: sticky; top: 88px; }
.studio-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.stab {
  flex: 1; padding: 10px; border-radius: 12px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--muted); font-size: 14px; transition: .15s;
}
.stab.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent; }
.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tab {
  flex: 1; padding: 9px; border-radius: 999px; cursor: pointer;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--muted); font-size: 13px; transition: .15s;
}
.tab.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent; }
.hint { font-size: 12px; color: var(--muted); margin: 0 0 16px; line-height: 1.6; }
.panel label { display: block; font-size: 11px; color: var(--muted); margin: 14px 0 6px; letter-spacing: 1px; text-transform: uppercase; }
textarea, input[type="text"], input[type="number"], select {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 10px; padding: 10px 12px; font-size: 14px;
  font-family: inherit; resize: vertical;
}
textarea:focus, input:focus, select:focus { outline: none; border-color: var(--accent); }
.drop { border: 1px dashed var(--border); border-radius: 12px; padding: 14px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.preview { width: 100%; max-height: 200px; object-fit: contain; border-radius: 12px; margin-top: 12px; border: 1px solid var(--border); background: #000; }
.muted { color: var(--muted); font-size: 12px; }
.tip { font-size: 11px; color: var(--muted); margin: 12px 0 0; line-height: 1.6; }
.params { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 4px; }
.field label { margin: 0 0 6px; }
#generate-image, #generate-video { width: 100%; margin-top: 16px; padding: 13px; font-size: 15px; border-radius: 12px; }

/* ===== Gallery / History ===== */
.ghead { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.ghead h2 { font-size: 24px; font-weight: 500; margin: 0; }
.gfilters { display: flex; align-items: center; gap: 8px; }
.gfilter {
  padding: 6px 14px; border-radius: 999px; cursor: pointer; font-size: 13px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted); transition: .15s;
}
.gfilter.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent; }
.tasks { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.thumb { background: #000; display: grid; place-items: center; position: relative; overflow: hidden; }
.thumb[data-type="image"] { aspect-ratio: 1 / 1; }
.thumb[data-type="video"] { aspect-ratio: 16 / 9; }
.thumb img { width: 100%; height: 100%; object-fit: contain; display: block; background: #000; cursor: zoom-in; }
.thumb video { width: 100%; height: 100%; object-fit: contain; display: block; background: #000; }
.thumb .playerr { color: var(--err); font-size: 12px; text-align: center; padding: 8px; }
.badge {
  position: absolute; top: 10px; left: 10px; font-size: 11px; padding: 4px 9px;
  border-radius: 999px; background: rgba(0,0,0,.7); border: 1px solid var(--border);
  backdrop-filter: blur(4px); z-index: 2;
}
.badge.completed { color: var(--ok); border-color: rgba(52,211,153,.3); }
.badge.generating, .badge.in_progress { color: var(--warn); border-color: rgba(251,146,60,.3); }
.badge.queued { color: var(--muted); }
.badge.waiting { color: var(--muted); border-color: rgba(255,255,255,.15); }
.badge.failed { color: var(--err); border-color: rgba(248,113,113,.3); }
.progress { height: 3px; background: var(--panel-2); position: relative; }
.progress > i { display: block; height: 100%; width: 0; transition: width .4s; }
.progress.completed > i { background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.progress.in_progress > i, .progress.generating > i { background: var(--warn); }
.progress.failed > i { background: var(--err); }
.progress.queued > i { background: var(--muted); }
.meta { padding: 12px 14px; }
.meta .label { font-size: 11px; color: var(--muted); margin-bottom: 6px; }
.meta .label .pct { color: var(--accent-2); font-weight: 600; }
.meta .label .pct.warn { color: var(--warn); }
.meta .label .pct.err { color: var(--err); }
.meta .prompt { font-size: 13px; line-height: 1.5; color: var(--text); word-break: break-word; margin-bottom: 8px; }
.meta .err { font-size: 12px; color: var(--err); margin-top: 6px; }
.meta .err .retry { color: var(--accent-2); cursor: pointer; margin-left: 8px; }
.meta .warn { font-size: 11px; color: var(--warn); margin-top: 6px; opacity: .9; }
.meta a.dl, .meta button.dl {
  display: inline-block; margin-top: 8px; margin-right: 6px;
  font-size: 12px; color: var(--accent-2);
  background: transparent; border: 1px solid var(--border);
  padding: 5px 10px; border-radius: 8px; cursor: pointer;
  font-family: inherit; text-decoration: none;
}
.meta a.dl:hover, .meta button.dl:hover { border-color: var(--accent); color: #fff; }
.spinner { width: 32px; height: 32px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; }
.spinner.orange { border-top-color: var(--warn); }
.spinner.gray { border-top-color: var(--muted); }
@keyframes spin { to { transform: rotate(360deg); } }
.empty { color: var(--muted); font-size: 13px; grid-column: 1/-1; padding: 40px; text-align: center; border: 1px dashed var(--border); border-radius: 12px; }

/* ===== Footer ===== */
.foot { border-top: 1px solid var(--border); padding: 28px 36px 36px; margin-top: 40px; }
.foot-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px; }
.foot .brand { gap: 10px; font-size: 14px; }
.footnav { display: flex; gap: 22px; }
.footnav a { font-size: 13px; color: var(--muted); }
.footnav a:hover { color: #fff; }
.copy { font-size: 12px; color: var(--muted); margin: 16px 0 0; letter-spacing: 1.4px; }

/* ===== Auth overlay ===== */
.auth-overlay { position: fixed; inset: 0; z-index: 1000; background: rgba(10, 9, 16, 0.85); backdrop-filter: blur(10px); display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card { width: 360px; max-width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 32px 28px; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.auth-logo { width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 15px; display: grid; place-items: center; font-size: 24px; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.auth-card h2 { font-size: 19px; margin: 0 0 4px; }
.auth-card p { margin: 0 0 18px; }
.auth-card input { margin-bottom: 12px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 11px 13px; font-size: 14px; width: 100%; }
.auth-msg { min-height: 18px; font-size: 12px; margin-bottom: 4px; }
.remember { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); margin-bottom: 14px; cursor: pointer; user-select: none; text-align: left; }
.remember input { width: auto; margin: 0; accent-color: var(--accent); cursor: pointer; }

/* ===== Image viewer overlay (大图预览弹窗) ===== */
.viewer-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(10, 9, 16, 0.92); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; padding: 24px; }
.viewer-card { position: relative; max-width: 920px; width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 12px; box-shadow: 0 24px 80px rgba(0,0,0,.6); }
.viewer-card img { width: 100%; border-radius: 10px; background: #000; display: block; max-height: 74vh; object-fit: contain; }
.viewer-close { position: absolute; top: -14px; right: -10px; z-index: 2; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); font-size: 18px; line-height: 1; cursor: pointer; transition: .15s; }
.viewer-close:hover { color: var(--err); border-color: var(--err); }
.viewer-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 6px 2px; font-size: 13px; color: var(--muted); }
.viewer-meta a { white-space: nowrap; }

/* ===== Video player overlay (在线观看弹窗) ===== */
.player-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(10, 9, 16, 0.92); backdrop-filter: blur(8px); display: flex; align-items: center; justify-content: center; padding: 24px; }
.player-card { position: relative; max-width: 920px; width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 12px; box-shadow: 0 24px 80px rgba(0,0,0,.6); }
.player-card video { width: 100%; border-radius: 10px; background: #000; display: block; max-height: 74vh; object-fit: contain; }
.player-close { position: absolute; top: -14px; right: -10px; z-index: 2; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); font-size: 18px; line-height: 1; cursor: pointer; transition: .15s; }
.player-close:hover { color: var(--err); border-color: var(--err); }
.player-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 6px 2px; font-size: 13px; color: var(--muted); }
.player-meta a { white-space: nowrap; }

/* ===== Toasts ===== */
#toasts { position: fixed; top: 70px; right: 20px; z-index: 999; display: flex; flex-direction: column; gap: 8px; max-width: 340px; }
.toast { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 10px 14px; border-radius: 10px; font-size: 13px; line-height: 1.45; opacity: 0; transform: translateX(20px); transition: .25s; box-shadow: 0 6px 24px rgba(0,0,0,.35); word-break: break-word; }
.toast.show { opacity: 1; transform: none; }
.toast.ok { border-left: 3px solid var(--ok); }
.toast.err { border-left: 3px solid var(--err); }
.toast.info { border-left: 3px solid var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .navmenu { display: none; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .hero h2 { font-size: 40px; }
  .workspace { grid-template-columns: 1fr; }
  .composer { position: static; }
}
@media (max-width: 600px) {
  .topbar { padding: 12px 16px; flex-wrap: wrap; }
  .keybox { margin-left: 0; width: 100%; }
  .hero { padding: 60px 20px 40px; }
  .hero h2 { font-size: 32px; }
  .cards { grid-template-columns: 1fr; }
}