:root {
  --primary: #7c3aed;
  --primary-light: #a855f7;
  --accent: #f59e0b;
  --bg: #0d0d1a;
  --bg2: #13132a;
  --bg3: #1a1a35;
  --card: #16162d;
  --border: rgba(255,255,255,0.08);
  --text: #e2e8f0;
  --text2: #94a3b8;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--bg); color:var(--text); font-family:'Noto Sans SC',system-ui,sans-serif; line-height:1.6; }
a { color:inherit; text-decoration:none; }

/* ===== NAVBAR ===== */
.navbar {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(13,13,26,0.85);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  height:64px;
}
.nav-inner {
  max-width:1400px; margin:0 auto; padding:0 24px;
  height:100%; display:flex; align-items:center; gap:32px;
}
.nav-logo { font-size:1.25rem; font-weight:700; color:#fff; letter-spacing:-0.02em; }
.nav-links { display:flex; gap:20px; }
.nav-links a { color:var(--text2); font-size:.9rem; transition:.2s; }
.nav-links a:hover { color:#fff; }
.nav-search { margin-left:auto; }
.nav-search input {
  background:var(--bg3); border:1px solid var(--border); border-radius:8px;
  padding:8px 14px; color:var(--text); font-size:.875rem; width:200px; outline:none;
  transition:.3s;
}
.nav-search input:focus { border-color:var(--primary); width:260px; }

/* ===== HERO ===== */
.hero {
  position:relative; min-height:500px;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; padding-top:64px;
}
.hero-bg {
  position:absolute; inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124,58,237,0.35) 0%, transparent 70%),
    linear-gradient(180deg, #0d0d1a 0%, #13132a 100%);
}
.hero-content { position:relative; text-align:center; padding:60px 20px; }
.hero-title {
  font-size:clamp(2.5rem,6vw,4.5rem); font-weight:900;
  background:linear-gradient(135deg,#fff 30%,#a855f7);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  letter-spacing:-0.03em; margin-bottom:16px;
}
.hero-sub { font-size:1.15rem; color:var(--text2); margin-bottom:36px; }
.hero-sub strong { color:var(--accent); }
.hero-search {
  display:flex; gap:0; max-width:560px; margin:0 auto;
  background:var(--bg3); border:1px solid var(--border); border-radius:50px; overflow:hidden;
  box-shadow:0 8px 40px rgba(124,58,237,0.2);
}
.hero-search input {
  flex:1; background:none; border:none; padding:16px 24px;
  color:var(--text); font-size:1rem; outline:none;
}
.hero-search button {
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border:none; padding:14px 28px; color:#fff; font-size:.95rem;
  font-weight:600; cursor:pointer; border-radius:50px; margin:4px;
  transition:.3s;
}
.hero-search button:hover { transform:scale(1.04); }

/* ===== CONTAINER ===== */
.container { max-width:1400px; margin:0 auto; padding:0 24px; }
.section { margin:60px 0; }
.section-title {
  font-size:1.5rem; font-weight:700; margin-bottom:28px;
  display:flex; align-items:center; gap:10px;
}
.section-title::after {
  content:''; flex:1; height:1px;
  background:linear-gradient(90deg, var(--border), transparent);
}

/* ===== CATEGORY GRID ===== */
.cat-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); gap:14px;
}
.cat-card {
  display:flex; flex-direction:column; align-items:center; gap:8px;
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:20px 12px; cursor:pointer; transition:.3s;
}
.cat-card:hover {
  border-color:var(--primary); transform:translateY(-4px);
  box-shadow:0 8px 24px rgba(124,58,237,0.25);
}
.cat-icon { font-size:2rem; }
.cat-name { font-size:.9rem; font-weight:600; color:var(--text); }
.cat-count { font-size:.75rem; color:var(--text2); }

/* ===== PROMPT GRID ===== */
.prompt-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:20px;
}
.prompt-card {
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden; transition:.3s; position:relative; display:flex; flex-direction:column;
}
.prompt-card:hover {
  border-color:rgba(124,58,237,0.5); transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(124,58,237,0.2);
}
.featured-badge {
  position:absolute; top:12px; right:12px;
  background:linear-gradient(135deg,#f59e0b,#ef4444);
  color:#fff; font-size:.7rem; font-weight:700;
  padding:3px 10px; border-radius:20px;
}
.card-body { padding:20px; flex:1; }
.card-meta { display:flex; gap:8px; margin-bottom:12px; flex-wrap:wrap; }
.card-cat, .card-model {
  font-size:.72rem; padding:3px 10px; border-radius:20px;
  font-weight:600;
}
.card-cat { background:rgba(124,58,237,0.2); color:#a855f7; }
.card-model { background:rgba(245,158,11,0.15); color:#f59e0b; }
.card-title { font-size:1rem; font-weight:700; margin-bottom:10px; line-height:1.4; }
.card-title a:hover { color:var(--primary-light); }
.card-text {
  font-size:.82rem; color:var(--text2); line-height:1.7;
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden;
}
.card-footer {
  padding:14px 20px; border-top:1px solid var(--border);
  display:flex; align-items:center; gap:14px; font-size:.8rem; color:var(--text2);
}
.quick-copy {
  margin-left:auto; background:rgba(124,58,237,0.15);
  border:1px solid rgba(124,58,237,0.3); border-radius:8px;
  color:var(--primary-light); padding:5px 12px; font-size:.78rem;
  cursor:pointer; transition:.2s;
}
.quick-copy:hover { background:var(--primary); color:#fff; }

/* ===== DETAIL ===== */
.detail-wrap { max-width:900px; margin:0 auto; padding:20px 0 60px; }
.detail-meta { display:flex; gap:10px; margin-bottom:16px; flex-wrap:wrap; }
.badge {
  display:inline-block; font-size:.75rem; padding:4px 12px; border-radius:20px;
  background:rgba(124,58,237,0.2); color:#a855f7; font-weight:600;
}
.badge.model { background:rgba(245,158,11,0.15); color:#f59e0b; }
.badge.diff { background:rgba(16,185,129,0.15); color:#34d399; }
.detail-title { font-size:2rem; font-weight:800; margin-bottom:16px; line-height:1.3; }
.detail-stats { display:flex; gap:20px; color:var(--text2); font-size:.875rem; margin-bottom:28px; }
.prompt-block {
  background:var(--bg3); border:1px solid var(--border); border-radius:var(--radius);
  margin-bottom:20px; overflow:hidden;
}
.prompt-block-header {
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 20px; border-bottom:1px solid var(--border);
  font-size:.875rem; font-weight:600;
}
.copy-btn {
  background:rgba(124,58,237,0.15); border:1px solid rgba(124,58,237,0.3);
  color:var(--primary-light); padding:6px 14px; border-radius:8px;
  cursor:pointer; font-size:.8rem; transition:.2s;
}
.copy-btn:hover { background:var(--primary); color:#fff; }
.prompt-text {
  padding:20px; font-size:.9rem; line-height:1.8; color:var(--text);
  white-space:pre-wrap; word-break:break-all; font-family:inherit;
}
.tags-wrap { display:flex; flex-wrap:wrap; gap:8px; margin:20px 0; }
.tag {
  background:var(--bg3); border:1px solid var(--border); border-radius:6px;
  padding:4px 12px; font-size:.8rem; color:var(--text2); transition:.2s;
}
.tag:hover { border-color:var(--primary); color:var(--primary-light); }
.action-bar { display:flex; gap:12px; margin-top:24px; flex-wrap:wrap; }
.btn-like, .btn-copy {
  padding:12px 24px; border-radius:10px; font-size:.9rem;
  font-weight:600; cursor:pointer; border:none; transition:.3s;
}
.btn-like {
  background:rgba(239,68,68,0.15); border:1px solid rgba(239,68,68,0.3);
  color:#f87171;
}
.btn-like:hover, .btn-like.liked { background:#ef4444; color:#fff; }
.btn-copy {
  background:rgba(124,58,237,0.15); border:1px solid rgba(124,58,237,0.3);
  color:var(--primary-light);
}
.btn-copy:hover { background:var(--primary); color:#fff; }

/* ===== SEARCH BAR ===== */
.search-bar {
  display:flex; gap:12px; margin-bottom:28px;
}
.search-bar input {
  flex:1; background:var(--bg3); border:1px solid var(--border);
  border-radius:10px; padding:12px 18px; color:var(--text); font-size:.95rem; outline:none;
}
.search-bar input:focus { border-color:var(--primary); }
.search-bar button {
  background:var(--primary); border:none; border-radius:10px;
  padding:12px 24px; color:#fff; font-weight:600; cursor:pointer;
}

/* ===== PAGE HEADER ===== */
.page-header { margin-bottom:28px; }
.page-header h1 { font-size:2rem; font-weight:800; }
.page-header p { color:var(--text2); margin-top:8px; }

/* ===== CAT TABS ===== */
.cat-tabs { display:flex; gap:10px; flex-wrap:wrap; margin-bottom:28px; }
.cat-tab {
  background:var(--bg3); border:1px solid var(--border); border-radius:8px;
  padding:7px 16px; font-size:.85rem; color:var(--text2); transition:.2s;
}
.cat-tab:hover, .cat-tab.active {
  background:var(--primary); border-color:var(--primary); color:#fff;
}

/* ===== PAGINATION ===== */
.pagination {
  display:flex; justify-content:center; align-items:center; gap:16px; margin-top:40px;
}
.page-btn {
  background:var(--card); border:1px solid var(--border); border-radius:8px;
  padding:10px 20px; color:var(--text); transition:.2s;
}
.page-btn:hover { border-color:var(--primary); color:var(--primary-light); }
.page-info { color:var(--text2); font-size:.875rem; }

/* ===== EMPTY STATE ===== */
.empty-state { text-align:center; padding:80px 20px; color:var(--text2); font-size:1.1rem; }
.view-more { text-align:center; margin-top:40px; }
.btn-more {
  display:inline-block; background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; padding:14px 32px; border-radius:50px; font-weight:600; transition:.3s;
}
.btn-more:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(124,58,237,0.4); }

/* ===== FOOTER ===== */
.footer { border-top:1px solid var(--border); padding:40px 24px; text-align:center; color:var(--text2); margin-top:80px; }
.footer a { color:var(--primary-light); }

/* ===== TOAST ===== */
.toast {
  position:fixed; bottom:30px; left:50%; transform:translateX(-50%);
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff; padding:12px 28px; border-radius:50px; font-size:.9rem;
  font-weight:600; z-index:9999; animation:fadeInUp .3s ease;
  box-shadow:0 8px 24px rgba(124,58,237,0.4);
}
@keyframes fadeInUp {
  from { opacity:0; transform:translateX(-50%) translateY(20px); }
  to { opacity:1; transform:translateX(-50%) translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links { display:none; }
  .prompt-grid { grid-template-columns:1fr; }
  .hero-title { font-size:2.2rem; }
}