/* 证照制作工具 - 全局响应式样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
.hidden { display: none !important; }

:root {
  --primary: #4A90D9;
  --primary-dark: #357ABD;
  --danger: #FF6B6B;
  --success: #52C41A;
  --warning: #FAAD14;
  --bg: #F5F7FA;
  --card: #FFFFFF;
  --text: #333333;
  --text-secondary: #666666;
  --border: #E8E8E8;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
.hidden { display: none !important; }

/* ========== 顶部导航 ========== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  background: var(--card);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  user-select: none;
}

.logo:hover { opacity: 0.8; }

.btn-login {
  padding: 6px 16px;
  border: 1px solid var(--primary);
  background: #fff;
  color: var(--primary);
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-login:hover { background: var(--primary); color: #fff; }

.user-info { display: flex; align-items: center; gap: 10px; }
.user-name { font-size: 14px; color: var(--text-secondary); }

/* ========== 主内容区 ========== */
.main {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  flex: 1;
}

/* ========== Banner ========== */
.banner-section {
  margin-bottom: 20px;
}

.notice-card {
  background: linear-gradient(135deg, #EBF5FF, #F0F7FF);
  border-radius: 12px;
  padding: 16px 20px;
  border: 1px solid #D6E8FF;
}

.notice-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.notice-line {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== 功能区 ========== */
.section { margin-bottom: 24px; }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.section-desc {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ========== 功能网格（始终3列×2行） ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-item {
  background: var(--card);
  border-radius: 16px;
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.feature-icon-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 12px;
}

.feature-icon-wrap svg {
  width: 48px;
  height: 48px;
}

.feature-tag {
  position: absolute;
  top: -6px;
  right: -24px;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 10px;
  color: #fff;
  font-weight: 600;
}

.tag-hot { background: var(--danger); }
.tag-ai { background: #722ED1; }
.tag-free { background: var(--success); }

.feature-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.feature-desc {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.feature-price {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--danger);
}

.feature-price.free { color: var(--success); }

/* ========== 工具列表（更多工具） ========== */
.tool-list {
  background: var(--card);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.tool-item {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}

.tool-item:last-child { border-bottom: none; }
.tool-item:hover { background: #F9FAFB; }

.tool-icon { width: 32px; height: 32px; margin-right: 12px; }
.tool-name { flex: 1; font-size: 15px; }
.tool-price { font-size: 14px; color: var(--danger); margin-right: 8px; }
.tool-arrow { color: #ccc; font-size: 18px; }

/* ========== 页脚 ========== */
.footer {
  text-align: center;
  padding: 24px 20px;
  font-size: 12px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  background: var(--card);
}

.footer a {
  color: var(--text-secondary);
  margin: 0 10px;
  transition: color 0.2s;
}

.footer a:hover { color: var(--primary); }
.footer span { margin: 0 10px; }

/* ========== 响应式：手机端 ========== */
@media (max-width: 767px) {
  .main { padding: 12px; }
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .feature-item { padding: 16px 8px; }
  .feature-icon-wrap svg { width: 36px; height: 36px; }
  .feature-name { font-size: 13px; }
  .feature-desc { font-size: 11px; }
  .feature-price { font-size: 12px; }
  .section-title { font-size: 16px; }
  .notice-card { padding: 12px 16px; }
}

/* ========== 响应式：平板 ========== */
@media (min-width: 768px) and (max-width: 1023px) {
  .feature-grid { gap: 14px; }
  .feature-item { padding: 20px 14px; }
}

/* ========== 响应式：桌面 ========== */
@media (min-width: 1024px) {
  .main { padding: 32px 40px; }
  .feature-item { padding: 28px 20px; }
  .feature-icon-wrap svg { width: 56px; height: 56px; }
  .feature-name { font-size: 17px; }
}

/* ========== 功能页通用 ========== */
.page-header {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: var(--card);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 12px;
}

.btn-back {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text);
  padding: 4px;
}

.page-title {
  font-size: 17px;
  font-weight: 600;
  flex: 1;
}

/* ========== 上传区域 ========== */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: var(--card);
  box-shadow: var(--shadow);
}

.upload-area:hover {
  border-color: var(--primary);
  background: #F0F7FF;
}

.upload-placeholder svg {
  color: var(--primary);
  margin-bottom: 12px;
}

.upload-placeholder span {
  display: block;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
}

.upload-placeholder small {
  color: var(--text-secondary);
  font-size: 12px;
}

/* ========== 预览区 ========== */
.preview-box {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.preview-box img {
  max-width: 100%;
  max-height: 400px;
  border-radius: 8px;
}

/* ========== 配置面板 ========== */
.config-panel {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.config-group {
  margin-bottom: 16px;
}

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

.config-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.spec-list, .color-list, .quality-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.spec-item, .color-item, .quality-item {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
}

.spec-item:hover, .color-item:hover, .quality-item:hover {
  border-color: var(--primary);
}

.spec-item.active, .color-item.active, .quality-item.active {
  border-color: var(--primary);
  background: #F0F7FF;
  color: var(--primary);
  font-weight: 600;
}

.color-item {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  padding: 0;
  font-size: 0;
}

/* ========== 操作栏 ========== */
.action-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
}

.price {
  font-size: 20px;
  font-weight: 700;
  color: var(--danger);
  flex: 1;
}

.btn-primary, .btn-secondary {
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
  background: var(--bg);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-block { width: 100%; margin-top: 12px; }

/* ========== 处理中 ========== */
.processing-box {
  text-align: center;
  padding: 60px 20px;
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

.progress-text {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.progress-bar {
  width: 80%;
  max-width: 300px;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  margin: 0 auto;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 3px;
  transition: width 0.3s;
  width: 0%;
}

/* ========== 结果页 ========== */
.result-box {
  text-align: center;
  padding: 16px;
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.result-box canvas {
  max-width: 100%;
  border-radius: 8px;
}

/* ========== 弹窗 ========== */
.modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.modal-content {
  background: var(--card);
  border-radius: 12px;
  width: 100%;
  max-width: 360px;
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 16px; }

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
}

.modal-body {
  padding: 20px;
  text-align: center;
}

.pay-amount { font-size: 16px; margin-bottom: 16px; }
.pay-amount strong { color: var(--danger); font-size: 24px; }

.qrcode-box img {
  width: 180px;
  height: 180px;
  margin-bottom: 8px;
}

.qrcode-box p { font-size: 13px; color: var(--text-secondary); }

/* ========== 表单 ========== */
.form-group {
  margin-bottom: 12px;
  text-align: left;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  outline: none;
}

.form-group input:focus { border-color: var(--primary); }

.code-group {
  display: flex;
  gap: 8px;
}

.code-group input { flex: 1; }

.btn-code {
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}

.login-tip {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========== 手机端功能页优化 ========== */
@media (max-width: 767px) {
  .page-header { padding: 12px 16px; }
  .action-bar { flex-wrap: wrap; }
  .price { width: 100%; text-align: center; margin-bottom: 8px; }
  .preview-box img { max-height: 280px; }
}