@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700&display=swap');

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

:root {
  /* 科技风配色 */
  --bg-primary: #0F0F23;
  --bg-secondary: #1a1a3e;
  --bg-card: rgba(26, 26, 62, 0.8);
  --bg-input: rgba(15, 15, 35, 0.9);
  
  /* 霓虹色系 */
  --neon-purple: #7C3AED;
  --neon-purple-light: #A78BFA;
  --neon-pink: #F43F5E;
  --neon-cyan: #06B6D4;
  --neon-blue: #3B82F6;
  
  /* 文字颜色 */
  --text-primary: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  /* 边框和效果 */
  --border-glow: rgba(124, 58, 237, 0.3);
  --border-subtle: rgba(124, 58, 237, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  
  /* 字体 */
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Exo 2', sans-serif;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 20px;
  font-family: var(--font-body);
  line-height: 1.6;
  background-image: 
    radial-gradient(ellipse at 20% 20%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(244, 63, 94, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.03) 0%, transparent 70%);
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

/* ===== 语言切换按钮 ===== */
.lang-switch {
  text-align: right;
  margin-bottom: 24px;
}

.lang-btn {
  padding: 8px 16px;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  margin-left: 8px;
  transition: all 0.3s ease;
  font-family: var(--font-body);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.lang-btn:hover {
  border-color: var(--neon-purple);
  color: var(--neon-purple-light);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.3);
}

.lang-btn.active {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  border-color: transparent;
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
}

/* ===== Header ===== */
.header {
  text-align: center;
  margin-bottom: 32px;
  padding: 20px 0;
}

.header h1 {
  font-size: 42px;
  margin-bottom: 12px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--neon-purple-light), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(124, 58, 237, 0.3);
}

.header p {
  color: var(--text-secondary);
  font-size: 16px;
  letter-spacing: 1px;
}

/* ===== API Box ===== */
.api-box {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.api-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-purple), transparent);
}

.api-box label {
  font-size: 14px;
  color: var(--neon-purple-light);
  display: block;
  margin-bottom: 10px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.api-box input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 15px;
  font-family: var(--font-body);
  transition: all 0.3s ease;
}

.api-box input:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.2);
}

.api-box input::placeholder {
  color: var(--text-muted);
}

/* ===== API Actions ===== */
.api-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.api-actions .btn-test {
  flex: 1;
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.api-actions .btn-test::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.api-actions .btn-test:hover::before {
  left: 100%;
}

.api-actions .btn-test:hover {
  transform: translateY(-2px);
}

.api-actions .btn-test:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Primary Button - Test API */
.api-actions .btn-primary {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.api-actions .btn-primary:hover {
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5);
}

/* Secondary Button - Get API Key */
.api-actions .btn-secondary {
  background: transparent;
  color: var(--neon-cyan);
  border: 2px solid var(--neon-cyan);
}

.api-actions .btn-secondary:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.test-status {
  margin-top: 12px;
  font-size: 13px;
  padding: 12px;
  border-radius: var(--radius-sm);
  display: none;
  font-weight: 500;
}

.test-success {
  background: rgba(34, 197, 94, 0.1);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
  display: block;
}

.test-error {
  background: rgba(244, 63, 94, 0.1);
  color: var(--neon-pink);
  border: 1px solid rgba(244, 63, 94, 0.3);
  display: block;
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab {
  padding: 14px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s ease;
  border: 1px solid var(--border-subtle);
  font-weight: 500;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-purple), var(--neon-cyan));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.tab:hover {
  border-color: var(--neon-purple);
  color: var(--neon-purple-light);
}

.tab:hover::after {
  transform: scaleX(1);
}

.tab.active {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  border-color: transparent;
  box-shadow: 0 0 25px rgba(124, 58, 237, 0.4);
}

.tab.active::after {
  display: none;
}

/* ===== Model Selector ===== */
.model-selector {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  display: none;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  position: relative;
}

.model-selector.active {
  display: block;
}

.model-selector::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--neon-purple), var(--neon-cyan));
  border-radius: var(--radius) 0 0 var(--radius);
}

.model-selector label {
  font-size: 14px;
  color: var(--neon-purple-light);
  display: block;
  margin-bottom: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.model-select {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 15px;
  font-family: var(--font-body);
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237C3AED' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='M6 9l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 44px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.model-select:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.2);
}

/* ===== Model Metadata ===== */
.model-metadata {
  background: var(--bg-input);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
}

.model-metadata h4 {
  color: var(--neon-purple-light);
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.model-metadata .metadata-item {
  margin-bottom: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.model-metadata .metadata-item:last-child {
  border-bottom: none;
}

.model-metadata .metadata-key {
  color: var(--neon-cyan);
  font-weight: 500;
}

.model-metadata .metadata-value {
  color: var(--text-primary);
  margin-left: 6px;
}

/* ===== Input Box ===== */
.input-box {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.prompt {
  width: 100%;
  min-height: 120px;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  color: var(--text-primary);
  resize: vertical;
  font-size: 15px;
  font-family: var(--font-body);
  transition: all 0.3s ease;
  line-height: 1.6;
}

.prompt:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.15);
}

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

/* ===== Advanced Settings ===== */
.advanced-toggle {
  font-size: 14px;
  color: var(--neon-cyan);
  cursor: pointer;
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.advanced-toggle:hover {
  border-color: var(--neon-cyan);
  background: rgba(6, 182, 212, 0.1);
}

.advanced-params {
  background: var(--bg-input);
  padding: 20px;
  border-radius: var(--radius-sm);
  margin-top: 16px;
  display: none;
  border: 1px solid var(--border-subtle);
}

.advanced-params.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.param-row {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.param-item {
  flex: 1;
  min-width: 140px;
}

.param-item label {
  font-size: 12px;
  color: var(--neon-purple-light);
  margin-bottom: 8px;
  display: block;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.param-item input,
.param-item select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-body);
  transition: all 0.3s ease;
}

.param-item input:focus,
.param-item select:focus {
  outline: none;
  border-color: var(--neon-purple);
  box-shadow: 0 0 10px rgba(124, 58, 237, 0.2);
}

/* ===== Generate Button ===== */
.btn-generate {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  border: none;
  border-radius: var(--radius);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 2px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 30px rgba(124, 58, 237, 0.3);
}

.btn-generate::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
}

.btn-generate:hover::before {
  left: 100%;
}

.btn-generate:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(124, 58, 237, 0.5);
}

.btn-generate:disabled {
  background: linear-gradient(135deg, #374151, #4b5563);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ===== Result ===== */
.result {
  margin-top: 24px;
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius);
  min-height: 300px;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

/* ===== Chat Container ===== */
.chat-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 500px;
  overflow-y: auto;
  margin-bottom: 16px;
}

.chat-message {
  display: flex;
  gap: 12px;
  max-width: 85%;
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-message.assistant {
  align-self: flex-start;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  font-family: var(--font-display);
  flex-shrink: 0;
}

.chat-avatar.user {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.4);
}

.chat-avatar.assistant {
  background: var(--bg-input);
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
}

.chat-content {
  background: var(--bg-input);
  padding: 16px 20px;
  border-radius: 20px;
  line-height: 1.6;
  border: 1px solid var(--border-subtle);
}

.chat-message.user .chat-content {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
  color: white;
  border-bottom-right-radius: 4px;
  border: none;
}

.chat-message.assistant .chat-content {
  border-bottom-left-radius: 4px;
}

.chat-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
  text-align: right;
}

/* ===== Media Container ===== */
.media-container {
  background: var(--bg-input);
  padding: 24px;
  border-radius: var(--radius);
  margin-top: 16px;
  text-align: center;
  border: 1px solid var(--border-subtle);
}

.media-container img,
.media-container video,
.media-container audio {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  border: 1px solid var(--border-subtle);
}

.media-info {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  text-align: left;
  padding: 12px;
  background: var(--bg-primary);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--neon-cyan);
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  color: white;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4);
}

/* ===== Loading & Error ===== */
.loading {
  color: var(--neon-cyan);
  padding: 40px;
  text-align: center;
  font-size: 16px;
  font-weight: 500;
}

.loading::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  margin-left: 10px;
  border: 2px solid var(--neon-cyan);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.error {
  color: var(--neon-pink);
  padding: 16px;
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* ===== Credit Section ===== */
.credit-section {
  margin-top: 48px;
  padding: 32px;
  background: var(--bg-card);
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.credit-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
}

.credit-section a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.credit-section a:hover {
  color: var(--neon-purple-light);
}

.credit-section .brand {
  font-weight: 700;
  font-size: 24px;
  font-family: var(--font-display);
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--neon-purple-light), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.credit-section .desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 16px 0 24px;
}

.credit-section .visit-btn {
  display: inline-block;
  padding: 12px 28px;
  background: transparent;
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}

.credit-section .visit-btn:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--neon-purple);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-purple-light);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  body {
    padding: 16px;
  }
  
  .header h1 {
    font-size: 28px;
  }
  
  .tabs {
    gap: 8px;
  }
  
  .tab {
    padding: 12px 16px;
    font-size: 14px;
  }
  
  .param-row {
    flex-direction: column;
    gap: 12px;
  }
  
  .param-item {
    min-width: 100%;
  }
  
  .api-box,
  .model-selector,
  .input-box,
  .result,
  .credit-section {
    padding: 20px;
  }
  
  .chat-message {
    max-width: 95%;
  }
}

/* ===== Selection ===== */
::selection {
  background: rgba(124, 58, 237, 0.3);
  color: var(--text-primary);
}