* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f0f14; --bg2: #1a1a24; --bg3: #24243a;
  --text: #e8e8f0; --text2: #9090a8;
  --accent: #c084fc; --accent2: #7c3aed; --danger: #f87171;
  --border: rgba(255,255,255,0.06); --radius: 10px;

  --gate-bg: linear-gradient(135deg, #0f0f14 0%, #1a1025 30%, #0f0f14 60%, #12091f 100%);
  --gate-card-bg: rgba(26,26,36,0.85);
  --gate-card-border: rgba(255,255,255,0.06);
  --gate-card-shadow: 0 4px 32px rgba(0,0,0,0.3);
  --gate-logo: #e8e8f0;
  --gate-poem: #9090a8;
  --gate-divider-color: #c084fc;
  --gate-hint: #9090a8;
  --gate-input-bg: #0f0f14;
  --gate-input-border: #24243a;
  --gate-input-color: #e8e8f0;
  --gate-input-focus-border: #c084fc;
  --gate-input-focus-shadow: rgba(192,132,252,0.15);
  --gate-btn-bg: linear-gradient(135deg, #7c3aed, #6d28d9);
  --gate-shape-1: rgba(124,58,237,0.2);
  --gate-shape-2: rgba(167,139,250,0.12);
  --gate-particle: 192,132,252;
}

[data-theme="light"] {
  --bg: #f8fafc; --bg2: #ffffff; --bg3: #e2e8f0;
  --text: #1e293b; --text2: #64748b;
  --accent: #7c3aed; --accent2: #6d28d9; --danger: #ef4444;
  --border: rgba(0,0,0,0.06);

  --gate-bg: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 30%, #faf9fb 60%, #f5f3ff 100%);
  --gate-card-bg: rgba(255,255,255,0.7);
  --gate-card-border: rgba(0,0,0,0.06);
  --gate-card-shadow: 0 4px 32px rgba(0,0,0,0.04);
  --gate-logo: #1e293b;
  --gate-poem: #64748b;
  --gate-divider-color: #cbd5e1;
  --gate-hint: #94a3b8;
  --gate-input-bg: #f8fafc;
  --gate-input-border: #e2e8f0;
  --gate-input-color: #334155;
  --gate-input-focus-border: #94a3b8;
  --gate-input-focus-shadow: rgba(148,163,184,0.12);
  --gate-btn-bg: #1e293b;
  --gate-shape-1: rgba(148,163,184,0.10);
  --gate-shape-2: rgba(148,163,184,0.08);
  --gate-particle: 100,116,139;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh; transition: background 0.3s, color 0.3s;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Theme toggle */
.theme-toggle {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 20px; padding: 3px; cursor: pointer;
  font-size: 0.85rem; line-height: 1; color: var(--text2);
}
.theme-opt { padding: 4px 8px; border-radius: 16px; transition: background 0.2s; }
.theme-opt.active { background: var(--accent2); color: #fff; }

/* Navbar */
.navbar {
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 0 20px; position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(10px); transition: background 0.3s;
}
.navbar .inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; height: 60px;
}
.navbar .logo {
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.navbar .links { display: flex; gap: 24px; align-items: center; }
.navbar .links a {
  color: var(--text2); font-size: 0.95rem; transition: color 0.2s;
}
.navbar .links a:hover, .navbar .links a.active { color: var(--text); text-decoration: none; }

/* Page switching */
.page { padding-top: 30px; }

/* Hero */
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: 2.4rem; margin-bottom: 12px; }
.hero p { color: var(--text2); font-size: 1.1rem; max-width: 500px; margin: 0 auto; }

/* Toolbar row */
.toolbar-row {
  display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; align-items: center;
}
.toolbar-row form { display: flex; gap: 8px; }
.toolbar-row input, .toolbar-row select {
  background: var(--bg2); border: 1px solid var(--bg3); color: var(--text);
  padding: 10px 16px; border-radius: var(--radius); font-size: 0.9rem; width: 240px;
}
.toolbar-row select { width: auto; }

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px; padding-bottom: 40px;
}
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
  transition: border-color 0.2s, transform 0.2s, background 0.3s;
  cursor: pointer; display: block; text-decoration: none; color: inherit;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { font-size: 1.1rem; margin-bottom: 6px; }
.card .ver { font-size: 0.8rem; color: var(--accent); margin-bottom: 10px; }
.card .desc { color: var(--text2); font-size: 0.9rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px; font-size: 0.8rem; color: var(--text2); }
.card .cat { background: var(--bg3); padding: 3px 10px; border-radius: 20px; }

/* Detail */
.detail .back { color: var(--text2); font-size: 0.9rem; margin-bottom: 20px; display: inline-block; }
.detail h1 { font-size: 2rem; margin-bottom: 8px; }
.detail .info { display: flex; gap: 20px; color: var(--text2);
  margin-bottom: 24px; font-size: 0.9rem; flex-wrap: wrap; }
.detail .desc { line-height: 1.7; margin-bottom: 30px; color: var(--text2); }
.detail .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius); font-size: 0.95rem;
  border: none; cursor: pointer; font-weight: 500; transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--accent2); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--bg3); color: var(--text); }

/* Admin */
.admin h1 { margin-bottom: 24px; }
.admin-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.admin-toolbar input {
  background: var(--bg2); border: 1px solid var(--bg3); color: var(--text);
  padding: 10px 16px; border-radius: var(--radius); font-size: 0.9rem; width: 220px;
}
.admin table { width: 100%; border-collapse: collapse; }
.admin th, .admin td {
  padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border);
}
.admin th { color: var(--text2); font-size: 0.85rem; text-transform: uppercase; }
.admin td { font-size: 0.9rem; }
.admin tr:hover td { background: rgba(128,128,128,0.04); }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  backdrop-filter: blur(4px);
}
.modal {
  background: var(--bg2); border-radius: var(--radius); padding: 30px;
  width: 90%; max-width: 520px; border: 1px solid var(--border);
}
.modal h2 { margin-bottom: 20px; }
.modal .field { margin-bottom: 16px; }
.modal .field label { display: block; font-size: 0.85rem; color: var(--text2); margin-bottom: 6px; }
.modal .field input, .modal .field textarea, .modal .field select {
  width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--bg3);
  color: var(--text); border-radius: var(--radius); font-size: 0.9rem;
}
.modal .field textarea { min-height: 80px; resize: vertical; }
.modal .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.modal .btns { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* Empty */
.empty { text-align: center; padding: 60px 20px; color: var(--text2); }
.empty .icon { font-size: 3rem; margin-bottom: 16px; }
.empty h3 { margin-bottom: 8px; color: var(--text); }

/* Gate */
.gate {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--gate-bg); overflow: hidden; transition: background 0.5s;
}
.gate-bg-shapes { position: fixed; inset: 0; pointer-events: none; z-index: 1; }
.gate-shape { position: absolute; border-radius: 50%; animation: shape-drift 12s ease-in-out infinite; }
.gate-shape-1 {
  width: 400px; height: 400px; background: var(--gate-shape-1);
  top: -15%; right: -8%; animation-delay: 0s;
}
.gate-shape-2 {
  width: 320px; height: 320px; background: var(--gate-shape-2);
  bottom: -12%; left: -6%; animation-delay: -6s;
}
@keyframes shape-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -40px) scale(1.08); }
  66% { transform: translate(-30px, 30px) scale(0.94); }
}

.gate-card {
  position: relative; z-index: 2;
  background: var(--gate-card-bg); backdrop-filter: blur(16px);
  border: 1px solid var(--gate-card-border); border-radius: 24px;
  padding: 52px 44px; width: 90%; max-width: 440px;
  text-align: center; box-shadow: var(--gate-card-shadow);
  transition: opacity 0.5s, transform 0.5s, background 0.3s;
}
.gate-card.shake { animation: shake 0.5s ease-in-out; }
.gate-card.fade-out { opacity: 0; transform: scale(0.95); }

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); } 40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); } 80% { transform: translateX(6px); }
}

.gate-logo {
  font-size: 2.8rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--gate-logo); margin-bottom: 24px; transition: color 0.3s;
}
.gate-poem {
  font-size: 1.05rem; color: var(--gate-poem); line-height: 1.9;
  letter-spacing: 0.04em; font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
  transition: color 0.3s;
}
.gate-divider {
  width: 48px; height: 2px; background: var(--gate-divider-color);
  border-radius: 1px; margin: 24px auto; transition: background 0.3s;
}
.gate-hint { font-size: 0.82rem; color: var(--gate-hint); margin-bottom: 24px; transition: color 0.3s; }
.gate-form { display: flex; flex-direction: column; gap: 12px; }
.gate-input {
  width: 100%; padding: 12px 16px;
  background: var(--gate-input-bg); border: 1px solid var(--gate-input-border);
  border-radius: 12px; color: var(--gate-input-color); font-size: 0.9rem;
  text-align: center; font-family: monospace; outline: none;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s, color 0.3s;
}
.gate-input:focus {
  border-color: var(--gate-input-focus-border);
  box-shadow: 0 0 0 3px var(--gate-input-focus-shadow);
}
.gate-error { font-size: 0.82rem; color: #ef4444; animation: fade-in 0.3s ease; }
.gate-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; background: var(--gate-btn-bg); color: #fff;
  font-size: 0.95rem; font-weight: 500; border: none; border-radius: 12px;
  cursor: pointer; transition: opacity 0.2s, transform 0.2s;
}
.gate-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.gate-theme-row { position: relative; z-index: 3; margin-top: 20px; display: flex; justify-content: center; }

#particles { position: fixed; inset: 0; pointer-events: none; z-index: 0; }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}