:root {
  --bg-deep: #06070a;
  --bg-panel: rgba(18, 22, 28, 0.72);
  --bg-panel-solid: #12161c;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(34, 197, 94, 0.35);
  --text: #f0f2f5;
  --text-muted: #94a3b8;
  --primary: #22c55e;
  --primary-glow: rgba(34, 197, 94, 0.25);
  --primary-dark: #16a34a;
  --glass-blur: 18px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(circle at 15% 20%, rgba(34,197,94,0.08) 0%, transparent 35%),
    radial-gradient(circle at 85% 80%, rgba(34,197,94,0.06) 0%, transparent 30%),
    linear-gradient(180deg, #0b0c10 0%, #06070a 100%);
  color: var(--text);
  overflow: hidden;
}

.glass {
  background: var(--bg-panel);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.app { display: flex; height: 100vh; }

.sidebar {
  width: 78px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 0;
  gap: 14px;
  z-index: 10;
}
.logo {
  width: 46px; height: 46px;
  border-radius: 14px;
  object-fit: contain;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 12px var(--primary-glow));
}
.nav-item {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .2s ease;
  position: relative;
}
.nav-item:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-item.active { color: var(--primary); background: rgba(34,197,94,0.12); }
.nav-item.active::before {
  content: ''; position: absolute; left: -9px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 22px; border-radius: 2px; background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}
.nav-item svg { width: 22px; height: 22px; }

.translate-btn {
  margin-top: auto;
  width: 52px; height: 52px;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  background: rgba(34,197,94,0.08);
  color: var(--primary);
  display: grid; place-items: center;
  cursor: pointer;
  transition: all .2s ease;
}
.translate-btn:hover { background: rgba(34,197,94,0.15); box-shadow: 0 0 16px var(--primary-glow); }
.translate-btn svg { width: 22px; height: 22px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; padding: 20px 24px; gap: 16px; overflow: hidden; }

.topbar {
  height: 64px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
}
.topbar h1 { font-size: 18px; font-weight: 600; margin: 0; letter-spacing: 0.5px; }
.topbar h1 span { color: var(--primary); }
.top-actions { display: flex; gap: 10px; align-items: center; }

.btn {
  height: 38px; padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px;
  transition: all .2s ease;
}
.btn:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border: none; color: #fff;
  box-shadow: 0 4px 18px rgba(34,197,94,0.28);
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 12px; }

.page { flex: 1; min-height: 0; overflow-y: auto; display: none; }
.page.active { display: block; }
.page::-webkit-scrollbar { width: 6px; }
.page::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.optimizer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  height: calc(100% - 0px);
}
.opt-card {
  border-radius: var(--radius);
  padding: 18px;
  display: flex; flex-direction: column;
  gap: 12px;
}
.opt-header { display: flex; align-items: center; justify-content: space-between; }
.opt-title { font-size: 15px; font-weight: 600; }
.opt-actions { display: flex; gap: 8px; }
textarea {
  flex: 1; min-height: 0;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 14px;
  font-size: 14px; line-height: 1.6;
  resize: none; outline: none;
  font-family: inherit;
}
textarea:focus { border-color: var(--border-strong); }
textarea::placeholder { color: var(--text-muted); opacity: .6; }
.hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.toolbar {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.18);
  border: 1px solid var(--border);
  margin-bottom: 16px;
}
.select {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px; min-width: 150px;
  outline: none;
}
.select:focus { border-color: var(--border-strong); }
.tag { padding: 5px 10px; border-radius: 20px; font-size: 12px; background: rgba(255,255,255,0.05); color: var(--text-muted); border: 1px solid transparent; cursor: pointer; }
.tag:hover { border-color: var(--border); color: var(--text); }
.tag.active { background: rgba(34,197,94,0.15); color: var(--primary); border-color: var(--border-strong); }

.result-box {
  flex: 1; min-height: 0;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  overflow-y: auto;
  font-size: 14px; line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}
.result-empty {
  height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: var(--text-muted); gap: 12px;
}
.lang-tabs { display: flex; gap: 6px; }
.lang-tab { padding: 5px 12px; border-radius: 6px; font-size: 12px; cursor: pointer; color: var(--text-muted); }
.lang-tab.active { background: rgba(34,197,94,0.15); color: var(--primary); }

.home-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.home-title { font-size: 22px; font-weight: 700; }
.home-sub { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.search-bar {
  display: flex; align-items: center; gap: 10px;
  width: 360px; max-width: 100%;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 0 16px; height: 44px;
}
.search-bar input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-size: 14px;
}
.masonry {
  column-count: 4; column-gap: 16px;
}
@media (max-width: 1200px) { .masonry { column-count: 3; } }
@media (max-width: 900px) { .masonry { column-count: 2; } }
@media (max-width: 600px) { .masonry { column-count: 1; } }

.prompt-card {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  transition: transform .2s ease, box-shadow .2s ease;
  cursor: default;
}
.prompt-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.45); border-color: var(--border-strong); }
.card-cover {
  width: 100%; aspect-ratio: 1;
  background: linear-gradient(135deg, rgba(34,197,94,0.12), rgba(34,197,94,0.03));
  display: grid; place-items: center;
  position: relative;
  overflow: hidden;
}
.card-cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.5) 100%);
  pointer-events: none;
}
.card-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-body { padding: 13px; }
.card-title { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.card-prompt {
  font-size: 12px; color: var(--text-muted); line-height: 1.55;
  margin-bottom: 10px; min-height: 38px;
  border: 1px dashed transparent; border-radius: 6px; padding: 6px;
  transition: border-color .2s ease;
  outline: none;
  cursor: text;
}
.card-prompt:hover { border-color: var(--border-strong); background: rgba(255,255,255,0.02); }
.card-prompt:focus { border-color: var(--primary); background: rgba(0,0,0,0.18); color: var(--text); }
.card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: var(--text-muted); }
.card-badge { padding: 3px 8px; border-radius: 12px; background: rgba(34,197,94,0.12); color: var(--primary); }

.card-actions-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  gap: 8px;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(2px);
  opacity: 0; transition: opacity .2s ease;
  pointer-events: none;
  z-index: 2;
}
.prompt-card:hover .card-actions-overlay { opacity: 1; pointer-events: auto; }
.btn-icon {
  width: 38px; height: 38px; padding: 0;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  display: inline-grid; place-items: center;
  cursor: pointer; transition: all .2s ease;
}
.btn-icon:hover:not(:disabled) { background: var(--primary); border-color: var(--primary); transform: translateY(-2px); }
.btn-icon:disabled { opacity: .35; cursor: not-allowed; }
.card-file-input { display: none; }

.lib-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.lib-filters { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.lib-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.lib-card {
  border-radius: var(--radius);
  padding: 15px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  transition: border-color .2s ease;
}
.lib-card:hover { border-color: var(--border-strong); }
.lib-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; }
.lib-card-title { font-size: 14px; font-weight: 600; }
.lib-card-desc { font-size: 12px; color: var(--text-muted); line-height: 1.5; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lib-card-footer { display: flex; justify-content: space-between; align-items: center; }
.card-actions { display: flex; gap: 6px; }
.lib-card-cover { width: 100%; height: 140px; object-fit: cover; border-radius: 8px; margin-bottom: 10px; }

.modal-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  width: 520px; max-width: 92vw; max-height: 90vh; overflow-y: auto;
  border-radius: var(--radius);
  padding: 22px;
}
.modal h3 { margin: 0 0 16px 0; font-size: 17px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; background: rgba(0,0,0,0.25);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; color: var(--text); font-size: 13px; outline: none;
  font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--border-strong); }
.upload-zone {
  border: 2px dashed var(--border); border-radius: 10px;
  padding: 24px; text-align: center; color: var(--text-muted);
  cursor: pointer; transition: border-color .2s ease;
}
.upload-zone:hover { border-color: var(--border-strong); }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  padding: 12px 18px; border-radius: 10px;
  background: var(--bg-panel-solid); color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  transform: translateY(100px); opacity: 0;
  transition: all .3s ease;
  font-size: 13px;
}
.toast.show { transform: translateY(0); opacity: 1; }

.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; }
.setting-card { border-radius: var(--radius); padding: 18px; }
.setting-card h3 { margin: 0 0 10px 0; font-size: 15px; }
.setting-card p { margin: 0 0 14px 0; font-size: 12px; color: var(--text-muted); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); display: inline-block; margin-right: 6px; box-shadow: 0 0 8px var(--primary); }

.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }

/* 发现页：原图 ｜ 效果图 对比卡片 */
.card-head { display: flex; justify-content: space-between; align-items: center; padding: 13px 13px 0; }
.card-head .card-title { margin-bottom: 0; }
.compare-row { display: flex; gap: 8px; padding: 10px 13px; }
.compare-img {
  position: relative; flex: 1; aspect-ratio: 1;
  border-radius: 10px; overflow: hidden;
  background: linear-gradient(135deg, rgba(34,197,94,0.12), rgba(34,197,94,0.03));
  display: grid; place-items: center;
}
.compare-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.img-label { position: absolute; left: 6px; bottom: 6px; font-size: 10px; color: #fff; background: rgba(0,0,0,0.5); padding: 2px 6px; border-radius: 6px; pointer-events: none; }
.img-actions { position: absolute; right: 6px; top: 6px; display: flex; gap: 4px; opacity: 0; transition: opacity .2s ease; }
.compare-img:hover .img-actions { opacity: 1; }
.ci-btn { width: 26px; height: 26px; padding: 0; border-radius: 6px; border: 1px solid rgba(255,255,255,0.2); background: rgba(0,0,0,0.55); color: #fff; cursor: pointer; font-size: 13px; display: grid; place-items: center; transition: all .2s; }
.ci-btn:hover:not(:disabled) { background: var(--primary); border-color: var(--primary); }
.ci-btn:disabled { opacity: .35; cursor: not-allowed; }
.card-actions-inline { display: flex; gap: 6px; }
.ci-text { font-size: 11px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); color: var(--text-muted); border-radius: 6px; padding: 3px 9px; cursor: pointer; transition: all .2s; }
.ci-text:hover { color: var(--primary); border-color: var(--border-strong); }
.toast-error { border-color: #f87171 !important; color: #fca5a5; }

@media (max-width: 800px) {
  .optimizer-grid { grid-template-columns: 1fr; }
  .optimize-center { display: none; }
  .sidebar { width: 60px; }
}