/* ============================
   暖心表情包工坊 - 治愈系样式
   ============================ */

:root {
  --primary: #FF9BB3;
  --primary-dark: #E87A96;
  --primary-light: #FFD4DE;
  --secondary: #C4A4FF;
  --secondary-dark: #A67FE0;
  --secondary-light: #E8D8FF;
  --accent: #FFD089;
  --accent-light: #FFECC8;
  --green: #7DD3A8;
  --green-light: #D0F0E0;
  --blue: #8BC5FF;
  --blue-light: #D4EAFF;
  --orange: #FFB07A;
  --orange-light: #FFE0C8;

  --bg: #FFF8FA;
  --bg-gradient: linear-gradient(170deg, #FFF8FA 0%, #FDF0F5 30%, #F8EFFF 70%, #FFF8FA 100%);
  --card-bg: #FFFFFF;
  --card-shadow: 0 4px 24px rgba(255, 155, 179, 0.12), 0 1px 4px rgba(196, 164, 255, 0.08);
  --card-hover-shadow: 0 8px 32px rgba(255, 155, 179, 0.2), 0 2px 8px rgba(196, 164, 255, 0.12);

  --text: #4A3240;
  --text-secondary: #8A7080;
  --text-light: #B8A0B0;
  --border: #F0E0E8;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --font-display: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-gradient);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ---- 背景装饰 ---- */
.bg-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: var(--primary-light);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
}

.blob-2 {
  width: 350px;
  height: 350px;
  background: var(--secondary-light);
  bottom: 10%;
  left: -80px;
  animation-delay: -7s;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-light);
  top: 50%;
  right: 10%;
  animation-delay: -14s;
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(15px, 10px) scale(1.02); }
}

.floating-emoji {
  position: absolute;
  font-size: 28px;
  opacity: 0.15;
  animation: emojiFloat 15s ease-in-out infinite;
}

.e1 { top: 8%; left: 5%; animation-delay: 0s; }
.e2 { top: 20%; right: 8%; animation-delay: -3s; }
.e3 { top: 55%; left: 3%; animation-delay: -6s; }
.e4 { top: 70%; right: 12%; animation-delay: -9s; }
.e5 { top: 90%; left: 15%; animation-delay: -12s; }

@keyframes emojiFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 248, 250, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(240, 224, 232, 0.5);
}

.header-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 36px;
  animation: logoWiggle 3s ease-in-out infinite;
}

@keyframes logoWiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-8deg); }
  75% { transform: rotate(8deg); }
}

.logo-text h1 {
  font-family: var(--font-display);
  font-size: 22px;
  background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
}

.subtitle {
  font-size: 12px;
  color: var(--text-light);
  letter-spacing: 2px;
  margin-top: 2px;
}

.btn-settings {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn-settings:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: rotate(45deg);
  box-shadow: 0 2px 12px rgba(255, 155, 179, 0.2);
}

/* ---- Settings Panel ---- */
.settings-panel {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
}

.settings-panel.active {
  display: block;
}

.settings-overlay {
  position: absolute;
  inset: 0;
  background: rgba(74, 50, 64, 0.3);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.3s ease;
}

.settings-content {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: min(400px, 90vw);
  background: var(--card-bg);
  box-shadow: -8px 0 40px rgba(0, 0, 0, 0.1);
  animation: slideInRight 0.35s ease;
  display: flex;
  flex-direction: column;
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.settings-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.settings-header h3 {
  font-family: var(--font-display);
  font-size: 18px;
}

.btn-close {
  width: 36px;
  height: 36px;
  border: none;
  background: none;
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

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

.settings-body {
  padding: 24px;
  flex: 1;
  overflow-y: auto;
}

/* ---- Form Elements ---- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-body);
  color: var(--text);
  background: #FEFBFC;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 155, 179, 0.15);
  background: #fff;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group small {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-light);
}

.form-group small a {
  color: var(--secondary-dark);
  text-decoration: none;
}

.form-group small a:hover {
  text-decoration: underline;
}

/* Radio Group */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  transition: var(--transition);
}

.radio-item:hover {
  border-color: var(--primary-light);
}

.radio-item input[type="radio"] {
  display: none;
}

.radio-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border);
  position: relative;
  transition: var(--transition);
  flex-shrink: 0;
}

.radio-item input:checked ~ .radio-dot {
  border-color: var(--primary);
}

.radio-item input:checked ~ .radio-dot::after {
  content: '';
  position: absolute;
  inset: 3px;
  background: var(--primary);
  border-radius: 50%;
}

.radio-item:has(input:checked) {
  border-color: var(--primary-light);
  background: var(--primary-light);
  color: var(--text);
}

.btn-save {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}

.btn-save:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 155, 179, 0.3);
}

/* ---- Main Content ---- */
.main-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px 40px;
  position: relative;
  z-index: 1;
}

.section {
  margin-top: 28px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-icon {
  font-size: 22px;
}

/* ---- Preset Tags ---- */
.preset-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  font-size: 13px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-weight: 400;
}

.tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tag:active {
  transform: scale(0.96);
}

.tag-pink { background: var(--primary-light); color: var(--primary-dark); border-color: var(--primary-light); }
.tag-pink:hover { border-color: var(--primary); }
.tag-purple { background: var(--secondary-light); color: var(--secondary-dark); border-color: var(--secondary-light); }
.tag-purple:hover { border-color: var(--secondary); }
.tag-yellow { background: var(--accent-light); color: #C48820; border-color: var(--accent-light); }
.tag-yellow:hover { border-color: var(--accent); }
.tag-green { background: var(--green-light); color: #3A9468; border-color: var(--green-light); }
.tag-green:hover { border-color: var(--green); }
.tag-blue { background: var(--blue-light); color: #4A8EC0; border-color: var(--blue-light); }
.tag-blue:hover { border-color: var(--blue); }
.tag-orange { background: var(--orange-light); color: #C07030; border-color: var(--orange-light); }
.tag-orange:hover { border-color: var(--orange); }

/* ---- Input Card ---- */
.input-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(240, 224, 232, 0.4);
  transition: var(--transition);
}

.input-card:hover {
  box-shadow: var(--card-hover-shadow);
}

/* ---- Style Grid ---- */
.style-options {
  margin-top: 20px;
}

.style-options > label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 10px;
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.style-card {
  padding: 14px 8px;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
  background: var(--card-bg);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
}

.style-emoji {
  font-size: 24px;
}

.style-name {
  font-size: 12px;
  color: var(--text-secondary);
}

.style-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.style-card.active {
  border-color: var(--primary);
  background: var(--primary-light);
}

.style-card.active .style-name {
  color: var(--primary-dark);
  font-weight: 500;
}

/* ---- Size Options ---- */
.size-options {
  margin-top: 20px;
}

.size-options > label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 10px;
}

.size-group {
  display: flex;
  gap: 10px;
}

.size-item {
  cursor: pointer;
}

.size-item input {
  display: none;
}

.size-box {
  display: block;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.size-item input:checked ~ .size-box {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 500;
}

.size-item:hover .size-box {
  border-color: var(--primary);
}

/* ---- Generate Button ---- */
.btn-generate {
  width: 100%;
  margin-top: 24px;
  padding: 16px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  font-size: 17px;
  font-weight: 500;
  font-family: var(--font-display);
  letter-spacing: 2px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-generate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
  opacity: 0;
  transition: var(--transition);
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 155, 179, 0.35);
}

.btn-generate:hover::before {
  opacity: 1;
}

.btn-generate:active {
  transform: translateY(0);
}

.btn-generate .btn-text,
.btn-generate .btn-loading {
  position: relative;
  z-index: 1;
}

.btn-generate .btn-loading {
  display: none;
}

.btn-generate.loading .btn-text {
  display: none;
}

.btn-generate.loading .btn-loading {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-generate.loading {
  pointer-events: none;
  opacity: 0.85;
}

.btn-generate .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  display: inline-block;
  animation: dotBounce 1.2s ease-in-out infinite;
}

.btn-generate .dot:nth-child(2) { animation-delay: 0.15s; }
.btn-generate .dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes dotBounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* ---- Result Section ---- */
.result-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(240, 224, 232, 0.4);
  animation: popIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.result-image-wrap {
  width: 100%;
  aspect-ratio: 1;
  max-width: 400px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f8f0f4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.result-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn-action {
  flex: 1;
  min-width: 120px;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--text);
  font-size: 13px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.btn-download:hover {
  border-color: var(--green);
  background: var(--green-light);
  color: #3A9468;
}

.btn-wechat:hover {
  border-color: var(--green);
  background: #E8F8E8;
  color: #07C160;
}

.btn-regenerate:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* ---- History Section ---- */
.history-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.history-item {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: #f8f0f4;
  transition: var(--transition);
  position: relative;
  border: 2px solid transparent;
}

.history-item:hover {
  transform: scale(1.04);
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(255, 155, 179, 0.25);
}

.history-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.history-item .history-delete {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  color: var(--text-light);
  font-size: 14px;
  cursor: pointer;
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.history-item:hover .history-delete {
  opacity: 1;
}

.history-item .history-delete:hover {
  background: #FF6B6B;
  color: #fff;
}

.btn-clear-history {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-light);
  background: none;
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-body);
}

.btn-clear-history:hover {
  border-color: #FF6B6B;
  color: #FF6B6B;
}

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  animation: toastIn 0.4s ease, toastOut 0.4s ease 2.6s;
  animation-fill-mode: forwards;
  pointer-events: auto;
  white-space: nowrap;
}

.toast-success { background: linear-gradient(135deg, #7DD3A8, #4ECDC4); }
.toast-error { background: linear-gradient(135deg, #FF6B6B, #E84A5F); }
.toast-info { background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.toast-warning { background: linear-gradient(135deg, var(--orange), var(--accent)); }

@keyframes toastIn {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

/* ---- Preview Modal ---- */
.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: none;
  align-items: center;
  justify-content: center;
}

.preview-modal.active {
  display: flex;
}

.preview-overlay {
  position: absolute;
  inset: 0;
  background: rgba(74, 50, 64, 0.6);
  backdrop-filter: blur(8px);
}

.preview-body {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: min(500px, 90vw);
  max-height: 90vh;
  overflow-y: auto;
  animation: popIn 0.4s ease;
}

.preview-body img {
  width: 100%;
  border-radius: var(--radius);
}

.preview-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.btn-close-preview {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 50%;
  font-size: 22px;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  z-index: 1;
}

.btn-close-preview:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}

/* ---- Footer ---- */
.footer {
  text-align: center;
  padding: 32px 20px;
  color: var(--text-light);
  font-size: 13px;
  position: relative;
  z-index: 1;
}

.footer-sub {
  margin-top: 4px;
  font-size: 12px;
  opacity: 0.7;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .header-inner {
    padding: 10px 16px;
  }

  .logo-text h1 {
    font-size: 18px;
  }

  .subtitle {
    font-size: 10px;
  }

  .main-content {
    padding: 0 16px 32px;
  }

  .input-card {
    padding: 20px;
  }

  .style-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .result-actions {
    flex-direction: column;
  }

  .btn-action {
    min-width: unset;
  }

  .history-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .preset-tags {
    gap: 8px;
  }

  .tag {
    padding: 6px 12px;
    font-size: 12px;
  }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ---- Selection ---- */
::selection {
  background: var(--primary-light);
  color: var(--primary-dark);
}