/* ===== 全局样式重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
  font-size: 14px;
  color: #e4e4e4;
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== 应用容器 ===== */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 顶部导航栏 ===== */
.header {
  background: rgba(15, 52, 96, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 28px;
}

.logo h1 {
  font-size: 20px;
  font-weight: 600;
  color: #fff;
}

.version {
  font-size: 12px;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: #aaa;
}

.nav {
  display: flex;
  gap: 5px;
}

.nav-link {
  color: #b0b0b0;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ===== 页面标题区域 ===== */
.page-header {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
  padding: 30px 20px;
  text-align: center;
}

.page-header-content h2 {
  font-size: 28px;
  margin-bottom: 10px;
  color: #fff;
}

.page-header-content p {
  color: #aaa;
  font-size: 16px;
}

/* ===== 主内容区 ===== */
.main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px 20px;
  width: 100%;
}

.calculator-main {
  padding: 20px;
}

/* ===== 计算器布局 ===== */
.calculator-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ===== 卡片样式 ===== */
.card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.card-header {
  background: rgba(255, 255, 255, 0.05);
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.card-icon {
  font-size: 18px;
}

.card-subtitle {
  font-size: 12px;
  color: #888;
  margin-left: auto;
}

.card-body {
  padding: 20px;
}

/* ===== 表单样式 ===== */
.form-group {
  margin-bottom: 15px;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  color: #b0b0b0;
  font-size: 13px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  transition: all 0.3s ease;
}

.form-select {
  background: rgba(30, 60, 100, 0.6);
  color: #e4e4e4;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2712%27 height=%2712%27 viewBox=%270 0 12 12%27%3E%3Cpath fill=%27%23e4e4e4%27 d=%27M6 9L1 4h10z%27/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 35px;
}

.form-select option {
  background: #1a3a4a;
  color: #e4e4e4;
}

.form-select option:checked {
  background: linear-gradient(#667eea, #667eea);
  background-color: #667eea;
  color: #fff;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-input::placeholder {
  color: #666;
}

.form-input-sm {
  width: 100px;
}

.form-input.small {
  width: 80px;
}

/* ===== 系数区域样式 ===== */
.coeff-section {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.coeff-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.coeff-title {
  display: block;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
  font-size: 14px;
}

.coeff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 10px;
}

.coeff-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.coeff-item label {
  font-size: 12px;
  color: #888;
}

/* ===== 参数网格 ===== */
.params-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.param-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.param-item label {
  font-size: 13px;
  color: #b0b0b0;
}

/* ===== Radio/Checkbox 样式 ===== */
.radio-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.radio-item,
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.radio-item:hover,
.checkbox-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.radio-item input,
.checkbox-item input {
  accent-color: #667eea;
}

.radio-item span,
.checkbox-item span {
  font-size: 13px;
  color: #ccc;
}

/* ===== 公式显示 ===== */
.formula-display {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 6px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 13px;
  color: #b0b0b0;
}

.formula-display.small {
  font-size: 12px;
  padding: 8px 10px;
}

/* ===== 结果框 ===== */
.result-box {
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 8px;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.result-box.compact {
  padding: 12px 15px;
}

.result-label {
  color: #b0b0b0;
  font-size: 14px;
}

.result-value {
  font-weight: 700;
  font-size: 18px;
  color: #fff;
}

.result-value.highlight {
  color: #f5a623;
}

/* ===== 按钮样式 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-large {
  width: 100%;
  padding: 15px 24px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

.btn-icon {
  font-size: 18px;
}

/* ===== 结果文本区域 ===== */
.result-textarea {
  width: 100%;
  min-height: 300px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: #e4e4e4;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
}

.result-textarea:focus {
  outline: none;
  border-color: #667eea;
}

/* ===== 提示文本 ===== */
.hint {
  font-size: 12px;
  color: #888;
  margin-top: 8px;
}

.help-note {
  margin-top: 15px;
  padding: 12px;
  background: rgba(255, 193, 7, 0.1);
  border-left: 3px solid #ffc107;
  border-radius: 4px;
  font-size: 13px;
  color: #ffd54f;
}

/* ===== 帮助列表 ===== */
.help-list {
  list-style: none;
  padding: 0;
}

.help-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.help-list li:last-child {
  border-bottom: none;
}

.help-list strong {
  color: #fff;
}

/* ===== 行内输入 ===== */
.inline-input {
  display: flex;
  align-items: center;
  gap: 10px;
}

.inline-input span {
  color: #b0b0b0;
  font-size: 13px;
}

/* ===== 页脚 ===== */
.footer {
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px;
  text-align: center;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}

.footer p {
  color: #888;
  font-size: 13px;
  margin: 5px 0;
}

.footer a {
  color: #667eea;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: #764ba2;
}

/* ===== 首页特殊样式 ===== */
.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero-title {
  font-size: 48px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: #aaa;
  max-width: 600px;
  margin: 0 auto 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.feature-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(102, 126, 234, 0.5);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 10px;
}

.feature-card p {
  color: #888;
  font-size: 14px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .calculator-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    height: auto;
    padding: 15px 20px;
    gap: 15px;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-link {
    padding: 6px 12px;
    font-size: 13px;
  }

  .page-header-content h2 {
    font-size: 22px;
  }

  .params-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }
}

/* ===== 动画效果 ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeIn 0.3s ease-out;
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ===== 选项卡样式 ===== */
.result-tabs {
  display: flex;
  gap: 5px;
  margin-bottom: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 10px;
  flex-wrap: wrap;
}

.result-tab {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #b0b0b0;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 13px;
}

.result-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.result-tab.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-color: transparent;
  color: #fff;
}

.result-tab-content {
  min-height: 200px;
}

.result-tab-panel {
  display: none;
}

.result-tab-panel.active {
  display: block;
}

.result-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: #888;
}

.placeholder-icon {
  font-size: 48px;
  margin-bottom: 15px;
  opacity: 0.5;
}

.result-placeholder p {
  font-size: 14px;
}

/* ===== 结果表格样式 ===== */
.result-table-wrapper {
  margin-bottom: 20px;
}

.result-table-title {
  font-size: 15px;
  color: #fff;
  margin-bottom: 5px;
  padding-left: 10px;
  border-left: 3px solid #667eea;
  font-weight: 600;
}

.result-table-subtitle {
  font-size: 12px;
  color: #888;
  margin-bottom: 10px;
  padding-left: 13px;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.result-table th,
.result-table td {
  padding: 8px 10px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.result-table thead th {
  background: rgba(102, 126, 234, 0.2);
  color: #fff;
  font-weight: 500;
}

.result-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

.result-table tbody tr:hover {
  background: rgba(102, 126, 234, 0.1);
}

.result-table .row-header {
  background: rgba(118, 75, 162, 0.2);
  color: #ddd;
  font-weight: 500;
  text-align: left;
}

.result-table .value-damage {
  color: #ffd700;
  font-weight: 600;
}

.result-table .value-good {
  color: #4ade80;
  font-weight: 600;
}

.result-table .value-na {
  color: #666;
  font-style: italic;
}

.result-table .value-percent {
  color: #b0b0b0;
}

.result-table .value-percent-high {
  color: #ef4444;
  font-weight: 600;
}

.result-table .value-percent-mid {
  color: #fbbf24;
  font-weight: 500;
}

.result-table .value-percent-low {
  color: #4ade80;
}

/* ===== 结果信息区域 ===== */
.result-info {
  background: rgba(255, 255, 255, 0.05);
  padding: 12px 15px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 13px;
}

.result-info p {
  margin-bottom: 5px;
}

.result-info p:last-child {
  margin-bottom: 0;
}

/* ===== 系数徽章样式 ===== */
.coeff-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.coeff-badge {
  background: rgba(102, 126, 234, 0.2);
  border: 1px solid rgba(102, 126, 234, 0.3);
  color: #b0b0b0;
  padding: 4px 10px;
  border-radius: 15px;
  font-size: 12px;
}

.coeff-display-section {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.coeff-display-title {
  font-size: 13px;
  color: #888;
  margin-bottom: 5px;
  display: block;
}

/* ===== 技能和暴击系数同行布局 ===== */
.coeff-section-row {
  display: flex;
  gap: 20px;
}

.coeff-half {
  flex: 1;
}

@media (max-width: 768px) {
  .coeff-section-row {
    flex-direction: column;
    gap: 10px;
  }
}

/* ===== 航空战减伤区域 ===== */
.airstrike-section {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.section-divider {
  display: block;
  font-weight: 600;
  color: #fff;
  margin-bottom: 15px;
  font-size: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(102, 126, 234, 0.3);
}

.airstrike-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-bottom: 15px;
}

.airstrike-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.airstrike-item label {
  font-size: 13px;
  color: #b0b0b0;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 22px;
}

.checkbox-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #667eea;
  cursor: pointer;
}

.checkbox-row label {
  font-size: 13px;
  color: #b0b0b0;
  cursor: pointer;
}

.airstrike-result {
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 8px;
  padding: 12px 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.airstrike-result-label {
  font-size: 13px;
  color: #b0b0b0;
}

.airstrike-result-value {
  font-size: 16px;
  font-weight: 600;
  color: #667eea;
}

@media (max-width: 768px) {
  .airstrike-grid {
    grid-template-columns: 1fr;
  }
  
  .checkbox-row {
    padding-top: 10px;
  }
}