/* ===== 全局重置与变量 ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #e0e7ff;
  --text-main: #1f2937;
  --text-sub: #6b7280;
  --text-light: #9ca3af;
  --bg-page: #f3f4f6;
  --bg-card: #ffffff;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --nav-height: 64px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--text-main);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== 顶部导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid var(--primary-light);
  transition: var(--transition);
  flex-shrink: 0;
}
.nav-avatar:hover {
  border-color: var(--primary);
  transform: scale(1.05);
}
.nav-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.nav-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nav-subtitle {
  font-size: 11px;
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-tools {
  display: flex;
  gap: 8px;
}
.nav-more-tools {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: var(--bg-page);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-sub);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
}
.nav-more-tools::after {
  content: '→';
  font-size: 11px;
  margin-left: 2px;
  transition: var(--transition);
}
.nav-more-tools:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary);
}
.nav-more-tools:hover::after {
  transform: translateX(3px);
}

.btn-follow {
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-follow:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

/* ===== 主容器布局 ===== */
.main-container {
  display: flex;
  gap: 24px;
  padding: 24px;
  max-width: 1600px;
  margin: 0 auto;
  min-height: calc(100vh - var(--nav-height));
  align-items: flex-start;
}

.panel {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.panel-left {
  flex: 0 0 440px;
  max-width: 440px;
  max-height: calc(100vh - var(--nav-height) - 48px);
  overflow-y: auto;
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.panel-right {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* 滚动条美化 */
.panel-left::-webkit-scrollbar {
  width: 6px;
}
.panel-left::-webkit-scrollbar-track {
  background: transparent;
}
.panel-left::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* ===== 表单区 ===== */
.form-section {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
}
.form-section:last-child {
  border-bottom: none;
}

.form-step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.required {
  color: #ef4444;
  font-weight: 700;
}

.form-group {
  margin-bottom: 14px;
}
.form-group:last-child {
  margin-bottom: 0;
}

.form-row {
  display: flex;
  gap: 12px;
}
.form-group-half {
  flex: 1;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-main);
  background: #fff;
  transition: var(--transition);
  font-family: inherit;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}
.form-textarea {
  resize: vertical;
  min-height: 72px;
  white-space: pre-wrap;
  line-height: 1.5;
}

.form-hint {
  font-size: 11px;
  color: var(--text-light);
  margin-top: 4px;
}

/* 颜色选择器 */
.color-picker-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.color-picker-wrap:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}
.color-picker-wrap input[type="color"] {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  background: none;
}
.color-picker-wrap input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
.color-picker-wrap input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--border);
  border-radius: 4px;
}
.color-hex {
  font-size: 12px;
  font-family: "Courier New", monospace;
  color: var(--text-sub);
  text-transform: uppercase;
}

/* 样式风格选项 */
.style-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.style-option {
  flex: 1;
  min-width: 100px;
  padding: 10px 8px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 12px;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition);
  background: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.style-option:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}
.style-option.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

/* Logo 上传 */
.logo-upload-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.logo-upload-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--bg-page);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition);
}
.logo-upload-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.btn-clear-logo {
  padding: 6px 12px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: #dc2626;
  cursor: pointer;
  transition: var(--transition);
}
.btn-clear-logo:hover {
  background: #fee2e2;
}
.logo-preview {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
  display: none;
}
.logo-preview.show {
  display: block;
}
.logo-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 模板选项 */
.template-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.template-option {
  padding: 12px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 12px;
  color: var(--text-sub);
  cursor: pointer;
  transition: var(--transition);
  background: #fff;
  position: relative;
  overflow: hidden;
}
.template-option::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--tmpl-bg, #ccc);
}
.template-option:hover {
  border-color: var(--primary-light);
  transform: translateY(-1px);
}
.template-option.active {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
}

/* ===== 右侧预览区 ===== */
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 10px;
}
.preview-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}
.preview-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.btn-download-qr,
.btn-download-poster {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-download-qr {
  background: var(--bg-page);
  color: var(--text-sub);
  border: 1.5px solid var(--border);
}
.btn-download-qr:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-download-poster {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.btn-download-poster:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.preview-scroll {
  padding: 32px 24px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: repeating-conic-gradient(#e5e7eb 0% 25%, #f3f4f6 0% 50%) 50% / 20px 20px;
  min-height: 400px;
}

/* ===== 海报卡片（竖屏手机海报） ===== */
.poster-card {
  width: 360px;
  min-height: 640px;
  border-radius: var(--radius-xl);
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  /* 模板变量默认值 */
  --poster-bg: linear-gradient(160deg, #fef9f3 0%, #fde8d7 45%, #fcd5b8 100%);
  --poster-accent: #c8895a;
  --poster-text: #5c4033;
  --poster-card-bg: rgba(255,255,255,0.55);
  --poster-border: rgba(200,137,90,0.25);
  background: var(--poster-bg);
  color: var(--poster-text);
}

.poster-card::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border: 1.5px solid var(--poster-border);
  border-radius: calc(var(--radius-xl) - 8px);
  pointer-events: none;
  z-index: 1;
}

.poster-top {
  text-align: center;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}
.poster-top-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.poster-qr-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  position: relative;
  z-index: 2;
}
.qr-frame {
  width: 240px;
  height: 240px;
  padding: 12px;
  background: var(--poster-card-bg);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--poster-border);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.qr-frame canvas {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 8px;
}
.poster-subtitle {
  font-size: 13px;
  color: var(--poster-text);
  opacity: 0.75;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 280px;
}

.poster-bottom {
  margin-top: 20px;
  position: relative;
  z-index: 2;
}
.poster-bottom-title {
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 装饰图案 - 跟随模板配色 */
.poster-decor {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 8px 0;
}
.decor-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--poster-accent);
  opacity: 0.5;
  flex-shrink: 0;
}
.decor-line {
  flex: 1;
  max-width: 70px;
  height: 1.5px;
  flex-shrink: 1;
}
.decor-line-left {
  background: linear-gradient(90deg, transparent, var(--poster-accent));
  opacity: 0.6;
}
.decor-line-right {
  background: linear-gradient(90deg, var(--poster-accent), transparent);
  opacity: 0.6;
}
.decor-ring {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--poster-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  opacity: 0.85;
}
.decor-ring::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--poster-accent);
  opacity: 0.6;
}
.decor-ring::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--poster-accent);
  opacity: 0.6;
}
.decor-symbol {
  font-size: 16px;
  color: var(--poster-accent);
  line-height: 1;
}

/* 右下角时间戳 - 复古电子表字体 */
.poster-timestamp {
  position: absolute;
  bottom: 16px;
  right: 20px;
  font-family: "Courier New", "Consolas", "Monaco", monospace;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--poster-text);
  opacity: 0.5;
  z-index: 2;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* 二维码空状态占位 */
.qr-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-light);
  font-size: 12px;
}
.qr-placeholder span {
  font-size: 36px;
}

/* ===== 二维码下载选项面板 ===== */
.qr-download-options {
  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;
}
.qr-download-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 320px;
  box-shadow: var(--shadow-lg);
}
.qr-download-panel h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  cursor: pointer;
  margin-bottom: 18px;
}
.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.qr-download-actions {
  display: flex;
  gap: 8px;
}
.btn-confirm,
.btn-cancel {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-confirm {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}
.btn-confirm:hover {
  opacity: 0.9;
}
.btn-cancel {
  background: var(--bg-page);
  color: var(--text-sub);
}
.btn-cancel:hover {
  background: var(--border);
}

/* ===== 弹窗通用 ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 300;
  backdrop-filter: blur(4px);
}
.modal-overlay.show {
  display: flex;
}
.modal-box {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 380px;
  width: 90%;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-page);
  border-radius: 50%;
  font-size: 20px;
  color: var(--text-sub);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  line-height: 1;
}
.modal-close:hover {
  background: #fee2e2;
  color: #dc2626;
  transform: rotate(90deg);
}

/* 关注弹窗 */
.follow-modal-content {
  text-align: center;
}
.follow-avatar-wrap {
  width: 72px;
  height: 72px;
  margin: 0 auto 14px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--primary-light);
}
.follow-avatar-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.follow-modal-title {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 4px;
}
.follow-modal-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 4px;
}
.follow-modal-desc {
  font-size: 12px;
  color: var(--text-sub);
  margin-bottom: 18px;
}
.follow-modal-qr {
  width: 160px;
  height: 160px;
  margin: 0 auto 12px;
  background: var(--bg-page);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}
.follow-qr-placeholder,
.cat-qr-placeholder {
  text-align: center;
  color: var(--text-light);
}
.follow-qr-placeholder span,
.cat-qr-placeholder span {
  font-size: 40px;
  display: block;
  margin-bottom: 6px;
}
.follow-qr-placeholder p,
.cat-qr-placeholder p {
  font-size: 11px;
}
.follow-modal-tip {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
}

/* 猫咪泪眼弹窗 */
.modal-cat {
  text-align: center;
  background: linear-gradient(160deg, #fff5f5 0%, #fef3c7 100%);
}
.cat-emoji {
  font-size: 48px;
  margin-bottom: 12px;
  animation: catBlink 2s ease-in-out infinite;
}
@keyframes catBlink {
  0%, 90%, 100% { transform: scale(1); }
  95% { transform: scale(1.1); }
}
.cat-modal-text {
  font-size: 13px;
  color: #7c2d12;
  line-height: 1.7;
  margin-bottom: 16px;
  padding: 0 8px;
}
.cat-modal-qr {
  width: 140px;
  height: 140px;
  margin: 0 auto 18px;
  background: #fff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #fed7aa;
}
.cat-modal-btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  background: #d1d5db;
  color: #6b7280;
}
.cat-modal-btn:not(:disabled) {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff;
  cursor: pointer;
}
.cat-modal-btn:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(249,115,22,0.4);
}
.cat-modal-btn:disabled {
  cursor: not-allowed;
}

/* 导航帮助按钮 */
.nav-help-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  background: var(--bg-page);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-sub);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
}
.nav-help-btn::before {
  content: '?';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}
.nav-help-btn:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary);
}

/* 声明弹窗 */
.modal-disclaimer {
  text-align: center;
  max-width: 420px;
}
.disclaimer-icon {
  font-size: 40px;
  margin-bottom: 12px;
}
.disclaimer-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 8px;
}
.disclaimer-intro {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 18px;
  font-weight: 600;
}
.disclaimer-rules {
  text-align: left;
  list-style: none;
  padding: 16px 20px;
  background: var(--bg-page);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.disclaimer-rules li {
  font-size: 13px;
  color: var(--text-main);
  line-height: 1.8;
  padding: 4px 0;
}
.disclaimer-checkbox-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-sub);
  cursor: pointer;
  margin-bottom: 16px;
  user-select: none;
}
.disclaimer-checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}
.disclaimer-btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  background: #d1d5db;
  color: #6b7280;
  font-family: inherit;
}
.disclaimer-btn:not(:disabled) {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  cursor: pointer;
}
.disclaimer-btn:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}
.disclaimer-btn:disabled {
  cursor: not-allowed;
}

/* 帮助弹窗 */
.modal-help {
  max-width: 480px;
}
.help-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-right: 32px;
}
.help-content {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 2;
  padding: 16px 20px;
  background: var(--bg-page);
  border-radius: var(--radius-md);
}

/* ===== 响应式：手机端 ===== */
@media (max-width: 900px) {
  .navbar {
    padding: 0 16px;
  }
  .nav-tools {
    display: none;
  }
  .nav-subtitle {
    display: none;
  }

  .main-container {
    flex-direction: column;
    padding: 16px;
    gap: 16px;
  }

  .panel-left {
    flex: none;
    width: 100%;
    max-width: 100%;
    max-height: none;
    position: static;
    order: 2;
  }

  .panel-right {
    width: 100%;
    order: 1;
  }

  .preview-header {
    padding: 14px 16px;
  }
  .preview-actions {
    width: 100%;
  }
  .btn-download-qr,
  .btn-download-poster {
    flex: 1;
    text-align: center;
    font-size: 11px;
    padding: 8px 10px;
  }

  .preview-scroll {
    padding: 20px 16px;
  }

  .poster-card {
    width: 300px;
    min-height: 540px;
    padding: 24px 22px 24px;
  }
  .qr-frame {
    width: 200px;
    height: 200px;
  }
  .poster-top-title {
    font-size: 18px;
  }
  .poster-bottom-title {
    font-size: 14px;
  }

  .form-section {
    padding: 16px;
  }
  .template-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 480px) {
  .poster-card {
    width: 280px;
    min-height: 500px;
    padding: 20px 18px;
  }
  .qr-frame {
    width: 180px;
    height: 180px;
  }
  .template-options {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}