/**
 * CSS 变量 - 主题配置
 */

:root {
  --color-primary: #FF6B35;
  --color-primary-light: #FFB74D;
  --color-primary-dark: #E55A2B;
  --color-primary-rgb: 255, 107, 53;
  --color-secondary: #FFB74D;
  --color-secondary-light: #FFCC80;
  --color-secondary-dark: #FFA726;
  --color-accent: #FFD54F;
  --color-success: #66BB6A;
  --color-warning: #FFA726;
  --color-danger: #FF4D4F;
  --color-error: #FF4D4F;
  --color-info: #4D96FF;
  --color-text-primary: #333333;
  --color-text-secondary: #757575;
  --color-text-tertiary: #9E9E9E;
  --color-text-placeholder: #BDBDBD;
  --color-text-disabled: #E0E0E0;
  --color-border: #F0E6DC;
  --color-border-light: #F5EEE6;
  --color-border-lighter: #FAF5F0;
  --color-bg-primary: #FFF9F2;
  --color-bg-secondary: #FFF8F0;
  --color-bg-tertiary: #FFFFFF;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.12);
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 40px;
  --spacing-4xl: 48px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-full: 9999px;
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --header-height: 64px;
  --content-max-width: 1200px;
}

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  font: inherit;
  color: inherit;
}

input, textarea, select {
  font: inherit;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

ul, ol {
  list-style: none;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* ========== Header ========== */

.app-header {
  background: #FF6B35;
  border-bottom: 2px solid #E55A2B;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-container {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  height: 80px;
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  object-fit: contain;
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  text-shadow: 
    1px 1px 0 rgba(0, 0, 0, 0.2),
    2px 2px 0 rgba(0, 0, 0, 0.15),
    3px 3px 0 rgba(0, 0, 0, 0.1);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-item {
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: #FFFFFF;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item:hover {
  color: #FFF3E0;
  background: rgba(255, 255, 255, 0.15);
}

.nav-item.active {
  color: #FFFFFF;
}

.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: #FFD54F;
  border-radius: 2px;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
}

.dropdown-arrow {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.nav-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background: #FFF8F0;
  border: 1px solid #FFCC80;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 1000;
  margin-top: var(--spacing-sm);
  color: #3E2723;
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
}

.dropdown-section {
  margin-bottom: var(--spacing-md);
}

.dropdown-section:last-child {
  margin-bottom: 0;
}

.dropdown-section-title {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: #757575;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--spacing-xs) var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: #3E2723;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.dropdown-item:hover {
  background: #FFE0B2;
  color: #3E2723;
}

.dropdown-item.active {
  background: #FFE0B2;
  color: #3E2723;
}

.dropdown-item.disabled {
  color: var(--text-tertiary);
  cursor: not-allowed;
  pointer-events: none;
}

.search-box {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-lg);
  padding-right: 40px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.search-box input:focus {
  outline: none;
  border-color: white;
  background: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
}

.search-btn {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  font-size: var(--font-size-base);
}

.user-area {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-left: auto;
}

#guestActions {
  display: flex;
  gap: var(--spacing-sm);
}

#userActions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-direction: row;
  flex-wrap: nowrap;
  position: relative;
}

#loggedInProfile {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-direction: row;
  flex-wrap: nowrap;
}

#guestProfile {
  display: flex;
  align-items: center;
  flex-direction: row;
  flex-wrap: nowrap;
}

.btn-login,
.btn-register {
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.btn-login {
  background: white;
  color: var(--color-primary);
  border: 2px solid white;
}

.btn-login:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: white;
}

.btn-register {
  background: var(--color-secondary);
  color: white;
}

.btn-register:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(126, 215, 193, 0.4);
}

.btn-create {
  padding: var(--spacing-sm) var(--spacing-base);
  background: var(--color-secondary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-create:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(126, 215, 193, 0.4);
}

.btn-profile {
  padding: var(--spacing-sm) var(--spacing-base);
  background: var(--color-bg-secondary);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.btn-profile:hover {
  background: var(--color-bg-tertiary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
}

.nav-message-badge {
  position: relative;
  top: -4px;
  left: 4px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
  color: #fff;
  border-radius: 8px;
  font-size: 10px;
  font-weight: 600;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(255, 71, 87, 0.3);
}

.nav-message-badge.show {
  display: inline-flex;
}

.message-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  z-index: 10;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: linear-gradient(135deg, #ff4757 0%, #ff6b81 100%);
  color: #fff;
  border-radius: 9px;
  font-size: 11px;
  font-weight: 600;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(255, 71, 87, 0.4);
  animation: badgePulse 2s ease-in-out infinite;
}

.message-badge.show {
  display: inline-flex;
}

@keyframes badgePulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.user-menu.active {
  display: block;
}

.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm);
  min-width: 160px;
  display: none;
  z-index: 2000;
}

.user-info {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--spacing-xs);
}

.username {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.menu-item {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.menu-item:hover {
  background: var(--color-bg-secondary);
  color: var(--color-primary);
}

#btnProfile {
  color: var(--color-primary);
}

#btnMessages {
  color: var(--color-primary);
  font-weight: 500;
  display: flex;
  align-items: center;
}

#btnMessages:hover {
  background: var(--color-bg-secondary);
}

.mobile-menu-btn {
  display: none;
  font-size: 24px;
  padding: var(--spacing-xs);
  color: white;
}

.mobile-menu-drawer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-fixed);
}

.drawer-overlay {
  position: absolute;
  inset: 0;
  background: var(--color-bg-overlay);
}

.drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  max-width: 80%;
  background: var(--color-bg-primary);
  box-shadow: var(--shadow-xl);
  overflow-y: auto;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.drawer-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.drawer-close {
  font-size: 24px;
  padding: var(--spacing-xs);
}

.mobile-nav {
  padding: var(--spacing-md);
}

.mobile-nav-item {
  display: block;
  padding: var(--spacing-base);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.mobile-nav-item:hover {
  background: var(--color-bg-secondary);
}

#mobileBtnProfile {
  color: var(--color-primary);
}

.mobile-nav-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--spacing-md) 0;
}

.mobile-nav-group {
  margin-bottom: var(--spacing-sm);
}

.mobile-nav-group-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-base);
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.mobile-nav-group-title:hover {
  background: var(--color-bg-secondary);
}

.mobile-nav-group-title::after {
  content: '▶';
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.mobile-nav-group-title.open::after {
  transform: rotate(90deg);
}

.mobile-nav-group-items {
  display: none;
  padding-left: var(--spacing-lg);
}

.mobile-nav-group-items.open {
  display: block;
}

.mobile-nav-item.disabled {
  color: var(--text-tertiary);
  cursor: not-allowed;
  pointer-events: none;
}

/* ========== Main Content ========== */

.home-main {
  flex: 1;
  padding-bottom: 70px;
}

/* ========== Hero Section ========== */

.hero-section {
  padding: var(--spacing-4xl) 0;
  margin-bottom: var(--spacing-4xl);
  background: var(--color-bg-secondary);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}

.hero-text {
  padding: var(--spacing-4xl) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 100%;
  margin: 0 auto;
  background: 
    radial-gradient(circle at 15% 25%, rgba(255, 245, 240, 0.9) 0%, transparent 25%),
    radial-gradient(circle at 85% 20%, rgba(255, 235, 220, 0.8) 0%, transparent 30%),
    radial-gradient(circle at 50% 75%, rgba(255, 240, 225, 0.7) 0%, transparent 35%),
    radial-gradient(circle at 25% 85%, rgba(255, 225, 210, 0.6) 0%, transparent 25%),
    radial-gradient(circle at 75% 15%, rgba(255, 250, 245, 1) 0%, transparent 20%),
    linear-gradient(135deg, #FFFAF5 0%, #FFF3E5 50%, #FFE8D5 100%);
}

.hero-title {
  font-size: 56px;
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  text-align: center;
  white-space: nowrap;
  color: #333333;
}

.hero-title .highlight {
  background: none;
  color: #FF7B54;
  -webkit-text-fill-color: #FF7B54;
  text-shadow: none;
}

.hero-subtitle {
  font-size: var(--font-size-base);
  color: #666666;
  margin-bottom: var(--spacing-lg);
  text-align: center;
  font-weight: var(--font-weight-medium);
}

.hero-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: #FF6B35;
  color: white;
  border: none;
}

.btn-primary:hover {
  background: #E55A2B;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
  background: white;
  color: #FF6B35;
  border: 2px solid #FFB74D;
}

.btn-secondary:hover {
  border-color: #FF6B35;
  color: #FF6B35;
  background: rgba(255, 107, 53, 0.05);
}

#heroBtnExplore {
  color: #FF7B54;
}

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

.btn-white:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-logo-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: contain;
  margin-right: 8px;
  vertical-align: middle;
}

.btn-icon {
  font-size: 1.2em;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.hero-stats .stat-item {
  display: flex;
  flex-direction: column;
}

.hero-stats .stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
}

.hero-stats .stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.hero-stats .stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

.hero-visual {
  display: none;
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  transform: rotate(-5deg);
}

.grid-cell {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  animation: float 3s ease-in-out infinite;
  box-shadow: var(--shadow-md);
}

.grid-cell:nth-child(1) { animation-delay: 0.1s; }
.grid-cell:nth-child(2) { animation-delay: 0.2s; }
.grid-cell:nth-child(3) { animation-delay: 0.3s; }
.grid-cell:nth-child(4) { animation-delay: 0.4s; }
.grid-cell:nth-child(5) { animation-delay: 0.5s; }
.grid-cell:nth-child(6) { animation-delay: 0.6s; }
.grid-cell:nth-child(7) { animation-delay: 0.7s; }
.grid-cell:nth-child(8) { animation-delay: 0.8s; }
.grid-cell:nth-child(9) { animation-delay: 0.9s; }
.grid-cell:nth-child(10) { animation-delay: 1s; }

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* ========== Features Section ========== */

.features-section {
  padding: var(--spacing-4xl) 0;
  margin-bottom: var(--spacing-4xl);
  background: var(--color-bg-primary);
  border-radius: var(--radius-2xl);
}

.section-title {
  text-align: center;
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-3xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-md);
}

.feature-card {
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  text-align: center;
}

.feature-icon {
  max-width: 100%;
  max-height: 150px;
  margin: 0 auto var(--spacing-md);
  display: block;
  object-fit: contain;
  border-radius: var(--radius-lg);
}

.feature-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  line-height: var(--line-height-relaxed);
}

/* ========== How it Works ========== */

.how-it-works {
  padding: var(--spacing-4xl) 0;
  margin-bottom: var(--spacing-4xl);
}

.steps-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
  max-width: 220px;
}

.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.step-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.step-arrow {
  color: var(--color-primary);
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  margin-top: 12px;
}

/* ========== Hot Works ========== */

.hot-works {
  padding: var(--spacing-4xl) 0;
  margin-bottom: var(--spacing-4xl);
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.section-header-content {
  flex: 1;
  min-width: 200px;
}

.section-header .section-title {
  text-align: left;
  margin-bottom: var(--spacing-sm);
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.section-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: 0;
  font-weight: var(--font-weight-normal);
}

.section-header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.btn-more {
  padding: var(--spacing-sm) var(--spacing-base);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-more:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.tabs-container {
  display: flex;
  gap: var(--spacing-xs);
}

.tab {
  padding: var(--spacing-sm) var(--spacing-base);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--color-primary);
  background: var(--color-bg-secondary);
}

.tab.active {
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.work-card,
.work-item {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
}

.work-card:hover,
.work-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.work-card-image,
.work-item-image {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.work-card-image img,
.work-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.work-card:hover .work-card-image img,
.work-item:hover .work-item-image img {
  transform: scale(1.05);
}

.download-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: linear-gradient(135deg, #FF7F50, #FF9800);
  color: white;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(255, 127, 80, 0.3);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 4px;
  animation: pulse 2s ease-in-out infinite;
}

.favorite-btn {
  position: absolute;
  top: 8px;
  left: 8px;
  background: transparent;
  border: none;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
  font-size: 24px;
}

.favorite-btn:hover {
  transform: scale(1.1);
}

.favorite-btn i {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.favorite-btn:hover i {
  color: rgba(255, 255, 255, 1);
}

.favorite-btn.active i {
  color: #FFD700;
  text-shadow: 0 2px 8px rgba(255, 215, 0, 0.5);
  animation: starPulse 0.5s ease;
}

@keyframes starPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.work-card-info,
.work-item-info {
  padding: var(--spacing-md);
}

.work-card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-item-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-item-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-sm);
}

.work-item-actions {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.work-item-action-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: none;
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.work-item-action-btn:hover {
  background: var(--color-primary);
  color: white;
}

.work-item-action-btn.share {
  background: var(--color-success);
  color: white;
}

.work-item-action-btn.unshare {
  background: var(--color-warning);
  color: white;
}

.work-item-action-btn.delete {
  background: var(--color-error);
  color: white;
}

.work-item-share-badge {
  position: absolute;
  top: var(--spacing-xs);
  right: var(--spacing-xs);
  padding: 2px 6px;
  background: var(--color-success);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 10px;
}

.work-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.author-name {
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.like-count {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.like-icon {
  font-size: 14px;
}

.works-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl);
  gap: var(--spacing-md);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border-light);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

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

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-4xl) var(--spacing-xl);
  text-align: center;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-lg);
}

.empty-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-xl);
}

/* ========== CTA Section ========== */

.cta-section {
  padding: var(--spacing-4xl) 0;
  margin-bottom: var(--spacing-4xl);
}

.cta-content {
  padding: var(--spacing-4xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-2xl);
  text-align: center;
  color: white;
}

.cta-title {
  font-size: 32px;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.cta-desc {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

/* ========== Bottom Nav ========== */

.bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #FEF2D8;
  border-top: 1px solid var(--color-border-light);
  z-index: var(--z-sticky);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.bottom-nav-items {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  padding: 6px 0;
}

.bottom-nav .nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--spacing-xs) var(--spacing-sm);
  min-height: 48px;
  color: var(--color-text-tertiary);
  font-size: 10px;
  transition: color var(--transition-fast);
}

.bottom-nav .nav-icon {
  width: 35px;
  height: 35px;
  object-fit: contain;
}

.bottom-nav .nav-item:hover,
.bottom-nav .nav-item.active {
  color: var(--color-primary);
}

.bottom-nav .add-btn {
  width: 56px;
  height: 56px;
  min-width: 56px;
  min-height: 56px;
  padding: 0;
  margin-top: -28px;
  background: none;
  border-radius: 0;
  box-shadow: none;
  color: white;
}

.bottom-nav .add-btn .nav-icon {
  width: 56px;
  height: 56px;
}

/* ========== Modal ========== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-modal);
}

.modal-content {
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  max-width: 95vw;
  max-height: 95vh;
  width: 500px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modal-slide-up 0.3s ease;
}

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

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-header h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.close-btn,
.back-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: var(--spacing-sm);
  transition: color var(--transition-fast);
  z-index: 100;
  position: relative;
  line-height: 1;
}

.close-btn:hover,
.back-btn:hover {
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  border-radius: var(--radius-sm);
}

.modal-body {
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.auth-modal {
  max-width: 450px;
}

.login-tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-border-light);
}

.login-tab {
  flex: 1;
  padding: var(--spacing-sm);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}

.login-tab:hover {
  color: var(--color-primary);
}

.login-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.login-form {
  display: none;
}

.login-form.active {
  display: block;
}

.form-item {
  margin-bottom: var(--spacing-base);
}

.form-item label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.form-item input,
.form-item select,
.form-item textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-item input:focus,
.form-item select:focus,
.form-item textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.phone-login-toggle {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-base);
}

.toggle-option {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.toggle-option input {
  display: none;
}

.toggle-option:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-secondary);
}

.toggle-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: white;
}

.code-input-group {
  display: flex;
  gap: var(--spacing-sm);
}

.code-input-group input {
  flex: 1;
}

.btn-code {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.btn-code:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(var(--color-primary-rgb), 0.3);
}

.btn-code:disabled {
  background: var(--color-border);
  cursor: not-allowed;
}

.btn-submit {
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.4);
}

.guest-info {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1) 0%, rgba(var(--color-secondary), 0.1) 100%);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
}

.guest-info p {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.guest-tips {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary) !important;
}

.captcha-container {
  text-align: center;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#captchaGrid {
  display: grid !important;
  grid-template-columns: 50px 50px 50px !important;
  gap: 8px !important;
  width: 174px !important;
  margin: 0 auto !important;
  padding: 5px !important;
}

#captchaGrid .captcha-circle {
  width: 50px !important;
  height: 50px !important;
  border-radius: 50% !important;
  cursor: pointer !important;
  border: 3px solid transparent !important;
  transition: all 0.2s ease !important;
  display: block !important;
  box-sizing: border-box !important;
  flex-shrink: 0;
}

.captcha-grid {
  display: grid;
  grid-template-columns: 50px 50px 50px;
  gap: 8px;
  width: 174px;
  margin: 0 auto var(--spacing-sm);
  justify-content: center;
  align-items: center;
}

.captcha-grid .captcha-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.2s ease;
  display: block;
  box-sizing: border-box;
}

.captcha-grid .captcha-circle:hover {
  transform: scale(1.1);
  border-color: var(--color-primary);
}

.captcha-grid .captcha-circle.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.3);
}

.captcha-prompt {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
}

.form-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border-light);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.form-footer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

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

/* ========== Profile Modal ========== */

.profile-modal {
  max-width: 700px;
}

.profile-tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-border-light);
}

.profile-tab {
  padding: var(--spacing-sm) var(--spacing-base);
  border: none;
  background: transparent;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
}

.profile-tab:hover {
  color: var(--color-primary);
}

.profile-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.profile-tab-content {
  display: none;
}

.profile-tab-content.active {
  display: block;
}

.profile-section {
  margin-bottom: var(--spacing-2xl);
}

.profile-section h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.profile-avatar-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--color-bg-primary);
}

.btn-upload {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-base);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.btn-upload:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.works-list {
  min-height: 200px;
}

.works-empty {
  text-align: center;
  padding: var(--spacing-4xl) var(--spacing-lg);
  color: var(--color-text-tertiary);
}

.works-empty p {
  font-size: var(--font-size-base);
}

/* ========== Work Detail Modal ========== */

.work-detail-modal {
  max-width: 900px;
  max-height: 90vh;
}

.work-detail-content {
  display: flex;
  gap: var(--spacing-xl);
}

.work-image-container {
  flex: 1;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.work-image-container img {
  max-width: 100%;
  max-height: 500px;
  object-fit: contain;
}

.work-info {
  width: 280px;
  flex-shrink: 0;
}

.work-detail-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.work-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.author-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.author-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.work-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-left: auto;
}

.work-stats {
  display: flex;
  justify-content: space-around;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.work-stats .stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-secondary);
}

.work-stats .stat-icon {
  font-size: 20px;
}

.work-stats .stat-value {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
}

.work-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.btn-like,
.btn-download,
.btn-share {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-base);
  border: 2px solid var(--color-border-light);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn-like:hover,
.btn-download:hover,
.btn-share:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-secondary);
}

.btn-like.liked {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ========== Comments ========== */

.comments-section {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border-light);
}

.comments-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-lg);
}

.comment-form {
  margin-bottom: var(--spacing-lg);
}

.comment-form textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  resize: vertical;
  transition: all var(--transition-fast);
}

.comment-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.comment-form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--spacing-sm);
}

.btn-comment-submit {
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-comment-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: 300px;
  overflow-y: auto;
}

.comment-item {
  display: flex;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.comment-avatar,
.comment-avatar-placeholder {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.comment-avatar {
  object-fit: cover;
}

.comment-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  font-size: 16px;
}

.comment-content {
  flex: 1;
}

.comment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
}

.comment-author {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.comment-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.comment-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ========== Share Modal ========== */

.share-modal {
  max-width: 400px;
}

.share-description {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.share-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.share-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.share-option:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tertiary);
  transform: translateY(-2px);
}

.share-option-icon {
  font-size: 32px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.share-option-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.share-option-desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ========== Utilities ========== */

.mobile-hidden {
}

.desktop-hidden {
  display: none;
}

@media (max-width: 767px) {
  .mobile-hidden {
    display: none !important;
  }
  
  .desktop-hidden {
    display: inline-flex !important;
  }
}

/* ========== Responsive ========== */

@media (max-width: 1023px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text {
    padding-right: 0;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-visual {
    display: none;
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .works-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .steps-container {
    flex-direction: column;
    align-items: center;
  }
  
  .step-item {
    max-width: 300px;
    width: 100%;
  }
  
  .step-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 56px;
    --content-max-width: 100%;
  }
  
  .header-container {
    padding: 0 var(--spacing-base);
  }
  
  .logo-text {
    font-size: var(--font-size-lg);
  }
  
  .hero-title {
    font-size: 36px;
    white-space: normal;
  }

  .hero-subtitle {
    font-size: var(--font-size-sm);
  }

  .hero-desc {
    font-size: var(--font-size-base);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
    justify-content: flex-start;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .hero-stats .stat-divider {
    display: none;
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
  }
  
  .section-title,
  .section-header .section-title,
  .cta-title {
    font-size: 32px;
  }
  
  .section-header-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  .tabs-container {
    flex: 1;
  }
  
  .btn-more {
    flex-shrink: 0;
  }
  
  .bottom-nav {
    display: block;
  }
  
  .home-main {
    padding-bottom: 70px;
  }
  
  .work-detail-content {
    flex-direction: column;
  }
  
  .work-info {
    width: 100%;
  }
  
  .modal-content {
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    border-radius: 0;
  }
  
  .cta-content {
    padding: var(--spacing-2xl) var(--spacing-lg);
  }
  
  .cta-title {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }
  
  .works-grid {
    gap: var(--spacing-sm);
  }
  
  .work-card-info {
    padding: var(--spacing-sm);
  }
  
  .work-card-title {
    font-size: var(--font-size-xs);
  }
}

/* ========== Home Page Tools Section ========== */

.tools-section {
  padding: var(--spacing-4xl) 0;
  background: var(--color-bg-secondary);
}

.tools-section .page-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.tools-section .page-title h1 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.tools-section .page-title p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.tool-card {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  width: 100%;
}

.tool-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.tool-card:active {
  transform: translateY(-4px);
}

.tool-icon {
  width: 100px;
  height: 100px;
  margin-bottom: var(--spacing-lg);
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-icon {
  transform: scale(1.1);
}

.tool-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  margin: 0 0 var(--spacing-xs);
}

.tool-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  text-align: center;
  margin: 0;
}

@media (max-width: 1023px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .tools-section {
    padding: var(--spacing-2xl) 0;
  }
  
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  .tool-card {
    min-height: 140px;
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .tool-icon {
    width: 150px;
    height: 150px;
  }
  
  .tool-name {
    font-size: var(--font-size-sm);
  }
  
  .tool-desc {
    font-size: var(--font-size-xs);
  }
}

/* ========== Generate Page ========== */

.generate-main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
  padding-bottom: 70px;
}

/* 生成页面右侧工具栏专门样式 - 确保不受首页标题大小影响 */
.generate-main .right-panel,
.generate-main .right-panel * {
  font-size: 14px !important;
}

.generate-main .right-panel .settings-card .section-title,
.generate-main .right-panel .section-title,
.generate-main .right-panel h3,
.generate-main .right-panel h2,
.generate-main .right-panel h1 {
  font-size: 16px !important;
  font-weight: 600 !important;
}

.generate-main .right-panel .setting-label,
.generate-main .right-panel label {
  font-size: 14px !important;
  font-weight: 500 !important;
}

.generate-main .right-panel .setting-hint,
.generate-main .right-panel .setting-description,
.generate-main .right-panel .setting-description span,
.generate-main .right-panel .slider-labels,
.generate-main .right-panel .slider-labels span {
  font-size: 12px !important;
}

.generate-main .right-panel .brand-btn,
.generate-main .right-panel .size-option,
.generate-main .right-panel .select-input,
.generate-main .right-panel .checkbox-option,
.generate-main .right-panel .checkbox-option span,
.generate-main .right-panel .setting-value {
  font-size: 14px !important;
}

.generate-main .right-panel .action-buttons .btn,
.generate-main .right-panel .btn {
  font-size: 14px !important;
}

.page-header {
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

.page-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.page-title .highlight {
  color: var(--color-primary);
}

.page-desc {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-md);
}

.generate-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.left-panel,
.right-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.generate-main .section-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.upload-section {
  background: var(--color-bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.upload-area {
  padding: var(--spacing-3xl) var(--spacing-xl);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.upload-area:hover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.02);
}

.upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.upload-icon {
  font-size: 48px;
}

.upload-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.upload-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.upload-tip {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.preview-section {
  background: var(--color-bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.original-preview {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-tertiary);
}

.original-preview img {
  width: 100%;
  max-height: 300px;
  object-fit: contain;
}

.settings-card {
  background: var(--color-bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.setting-item {
  margin-bottom: var(--spacing-xl);
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.setting-hint {
  font-weight: var(--font-weight-normal);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
}

.setting-value {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.setting-description {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.setting-description span {
  flex: 1;
  min-width: 200px;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-light);
}

@media (max-width: 768px) {
  .setting-description {
    flex-direction: column;
  }
  
  .setting-description span {
    min-width: auto;
  }
}

.brand-options {
  display: flex;
  gap: var(--spacing-sm);
}

.brand-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-base);
  border: 2px solid var(--color-border);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.brand-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.brand-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.select-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-base);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-bg-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.select-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.size-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

.size-option {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--color-bg-primary);
  color: var(--color-text-secondary);
}

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

.size-option.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.slider-input {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  outline: none;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
}

.slider-input::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  border: none;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.setting-input-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.number-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.number-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.setting-unit {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.option-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.checkbox-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.checkbox-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.action-buttons {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.action-buttons .btn {
  flex: 1;
  min-width: 150px;
}

.preset-selector {
  flex: 1;
  min-width: 200px;
}

.preset-selector .select-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

@media (max-width: 768px) {
  .setting-description {
    flex-direction: column;
  }
  
  .setting-description span {
    min-width: auto;
  }
}

.preset-selector .select-input:hover {
  border-color: var(--color-primary);
}

.preset-selector .select-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.progress-section {
  background: var(--color-bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.progress-bar {
  height: 10px;
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  width: 0%;
  transition: width 0.3s ease;
  border-radius: var(--radius-full);
}

.progress-text {
  text-align: center;
  margin-top: var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.result-section {
  background: var(--color-bg-primary);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.result-divider {
  text-align: center;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-success);
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-border-light);
}

.result-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
}

.result-preview {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.preview-canvas-container {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.preview-canvas {
  max-width: 100%;
  max-height: 500px;
  object-fit: contain;
}

.preview-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
}

.preview-size-btn {
  padding: var(--spacing-xs) var(--spacing-base);
  border: 2px solid var(--color-border);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preview-size-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.preview-size-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.result-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.stat-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--color-primary-rgb), 0.1);
  border-radius: var(--radius-lg);
  font-size: 24px;
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.color-stats-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
}

.color-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.color-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
}

.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.color-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.color-code {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}

.color-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.color-item.highlighted {
  background: var(--color-primary-light);
  border: 2px solid var(--color-primary);
}

.color-item.highlighted .color-code,
.color-item.highlighted .color-count {
  color: white;
}

.delete-color-btn {
  padding: 2px 6px;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: all var(--transition-fast);
}

.delete-color-btn:hover {
  background: var(--color-danger);
  color: white;
}

.replace-color-btn {
  padding: 2px 6px;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: all var(--transition-fast);
}

.replace-color-btn:hover {
  background: var(--color-primary);
  color: white;
}

.color-stats-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  max-height: 300px;
  overflow-y: auto;
}

/* ========== AI生图区域 ========== */

.ai-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* AI标签页 */
.ai-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}

.ai-tab {
  padding: 12px 24px;
  border: none;
  background: none;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all 0.3s ease;
}

.ai-tab:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.ai-tab.active {
  background: var(--color-primary);
  color: white;
}

.ai-tab-content {
  display: none;
}

.ai-tab-content.active {
  display: block;
}

.ai-upload-section {
  background: var(--color-bg-primary);
  border-radius: 15px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
}

.ai-upload-area {
  border: 2px dashed var(--color-border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 20px;
}

.ai-upload-area:hover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.02);
}

.ai-upload-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.ai-upload-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.ai-upload-subtext {
  font-size: 14px;
  color: var(--color-text-tertiary);
  margin: 0;
}

/* 文字生图区域 */
.ai-text-generation-section {
  background: var(--color-bg-primary);
  border-radius: 15px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 30px;
}

.ai-text-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.ai-input-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-input-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.ai-input-field,
.ai-select-field {
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
}

.ai-input-field:focus,
.ai-select-field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.ai-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.ai-example-section {
  margin-bottom: 30px;
  text-align: center;
}

.ai-example-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 15px;
}

.ai-example-images {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.ai-example-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.ai-example-img {
  max-width: 300px;
  max-height: 300px;
  width: 100%;
  border-radius: 12px;
  border: 2px solid var(--color-border);
  object-fit: contain;
  background: #f9f9f9;
}

.ai-example-desc {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

.ai-result-section {
  background: var(--color-bg-primary);
  border-radius: 15px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.ai-result-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 30px;
}

.ai-preview-card {
  text-align: center;
}

.ai-preview-container {
  border: 2px solid var(--color-border);
  border-radius: 12px;
  padding: 20px;
  background: var(--color-bg-tertiary);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.ai-preview-image {
  max-width: 100%;
  max-height: 260px;
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
}

.ai-text-preview {
  text-align: left;
  padding: 20px;
  background: var(--color-bg-primary);
  border-radius: 8px;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}

.ai-text-preview-item {
  margin-bottom: 12px;
}

.ai-text-preview-label {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 4px;
  font-size: 14px;
}

.ai-text-preview-value {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.ai-action-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-logo-icon {
  width: 24px;
  height: 24px;
  margin-right: 8px;
  vertical-align: middle;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .ai-result-layout {
    grid-template-columns: 1fr;
  }
  
  .ai-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .ai-upload-area {
    padding: 20px;
  }
  
  .ai-text-inputs {
    grid-template-columns: 1fr;
  }
  
  .ai-tabs {
    flex-direction: column;
  }
  
  .ai-tab {
    border-radius: 8px;
  }
}

/* ========== Generate Page Responsive ========== */

@media (max-width: 1023px) {
  .generate-layout {
    grid-template-columns: 1fr;
  }
  
  .result-layout {
    grid-template-columns: 1fr;
  }
  
  .size-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .page-title {
    font-size: var(--font-size-xl);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .size-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .action-buttons {
    flex-direction: column;
  }
  
  .result-section {
    padding: var(--spacing-lg);
  }
  
  .upload-area {
    padding: var(--spacing-2xl) var(--spacing-base);
  }
}

/* ========== Crop Modal ========== */

.crop-modal {
  max-width: 900px;
}

.crop-container {
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  min-height: 400px;
  max-height: 600px;
  overflow: hidden;
}

#cropCanvas {
  cursor: crosshair;
  display: block;
  max-width: 100%;
  touch-action: none;
}

.crop-controls {
  margin-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.crop-ratio-options {
  display: flex;
  gap: var(--spacing-sm);
}

.crop-ratio-btn {
  padding: var(--spacing-xs) var(--spacing-base);
  border: 2px solid var(--color-border);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.crop-ratio-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.crop-ratio-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.crop-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ========== Edit Modal ========== */

.edit-modal {
  max-width: 1200px;
  max-height: 90vh;
  width: 95vw;
}

.edit-layout {
  display: flex;
  gap: var(--spacing-lg);
  height: 70vh;
}

/* 左侧工具栏 */
.edit-toolbar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  background: var(--color-bg-secondary);
  padding: var(--spacing-sm);
  border-radius: var(--radius-lg);
  width: 80px;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-sm);
  border: 2px solid transparent;
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 12px;
}

.tool-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-tertiary);
}

.tool-btn.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: white;
  border-color: transparent;
}

.tool-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.tool-icon {
  font-size: 20px;
}

.tool-label {
  font-size: 10px;
}

/* 中间画布区域 */
.edit-canvas-area {
  flex: 1;
  position: relative;
  background: repeating-conic-gradient(var(--color-bg-tertiary) 0% 25%, var(--color-bg-secondary) 0% 50%) 50% / 20px 20px;
  border-radius: var(--radius-lg);
  min-height: 400px;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 40px;
  box-sizing: border-box;
}

#editCanvas {
  cursor: crosshair;
  image-rendering: pixelated;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  display: block;
  transform-origin: center center;
}

#referenceImage {
  position: absolute;
  pointer-events: none;
  opacity: 0.5;
  object-fit: contain;
  top: 0;
  left: 0;
  transform-origin: top left;
}

/* 右侧侧边栏 */
.edit-sidebar {
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  overflow-y: auto;
  padding-right: var(--spacing-xs);
}

.edit-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
}

/* 编辑模态框右侧面板标题样式 - 调小字体 */
.edit-section .section-title {
  font-size: 15px !important;
  font-weight: 600 !important;
}

/* 当前颜色显示 */
.current-color-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.current-color-swatch {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 3px solid var(--color-primary);
  box-shadow: 0 0 0 2px white, 0 0 0 4px var(--color-primary);
  flex-shrink: 0;
}

.current-color-code {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

.current-color-label {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

/* 色板网格 */
.color-palette {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 200px;
  overflow-y: auto;
}

.palette-colors-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--spacing-xs);
  overflow-y: auto;
  padding: var(--spacing-xs);
}

.palette-color {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.palette-color:hover {
  transform: scale(1.1);
}

.palette-color.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px white, 0 0 0 4px var(--color-primary);
}

/* 参考图控制 */
.reference-controls {
  margin-top: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

/* 尺寸和缩放控制 */
.edit-size-control,
.edit-zoom-control {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.edit-zoom-control {
  flex-direction: row;
  align-items: center;
  gap: var(--spacing-sm);
}

/* 操作按钮组 */
.edit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: auto;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn-xs {
  padding: 2px 6px;
  font-size: 11px;
  min-height: 22px;
}

.ref-pos-btn {
  flex: 1;
  min-width: 0;
}

/* 换色模态框的色板网格 */
.replace-palette-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: var(--spacing-xs);
  max-height: 300px;
  overflow-y: auto;
  padding: var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
}

/* 响应式 */
@media (max-width: 900px) {
  .edit-layout {
    flex-direction: column;
    height: auto;
  }

  .edit-toolbar {
    flex-direction: row;
    width: 100%;
    overflow-x: auto;
  }

  .edit-sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .edit-section {
    flex: 1;
    min-width: 200px;
  }
}

/* ========== Zoom Modal ========== */

.zoom-modal {
  max-width: 800px;
}

#zoomCanvas {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
}

.zoom-controls {
  margin-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

/* ========== Replace Color Modal ========== */

.replace-color-modal {
  max-width: 500px;
}

.replace-color-section {
  margin-bottom: var(--spacing-lg);
}

.replace-color-section h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

.color-preview {
  width: 100%;
  height: 60px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
}

.replace-color-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* ========== New Canvas Modal ========== */

.new-canvas-modal {
  max-width: 500px;
}

.new-canvas-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.blank-image-upload {
  margin-top: var(--spacing-md);
}

#blankImagePreview {
  max-width: 100%;
  max-height: 200px;
  margin-top: var(--spacing-sm);
  border-radius: var(--radius-md);
}

.new-canvas-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ========== AI 绘画相关样式 ========== */

.nav-tabs-container {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.tab-logo-icon {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 8px;
}

.nav-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-primary);
}

.nav-tab:hover {
  border-color: var(--color-secondary);
  background: var(--color-bg-secondary);
  transform: translateY(-2px);
}

.nav-tab.active {
  border-color: var(--color-secondary);
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  color: white;
  box-shadow: 0 4px 12px rgba(126, 215, 193, 0.3);
}

.tab-content {
  width: 100%;
}

.ai-section {
  width: 100%;
}

.ai-upload-section {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
}

.ai-upload-area {
  border: 3px dashed var(--color-primary);
  border-radius: var(--radius-xl);
  padding: 60px var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-fast);
  background: var(--color-bg);
  margin-bottom: var(--spacing-lg);
}

.ai-upload-area:hover {
  border-color: var(--color-primary-dark);
  background: var(--color-bg-tertiary);
  transform: scale(1.01);
}

.ai-upload-icon {
  font-size: 4em;
  margin-bottom: var(--spacing-md);
}

.ai-upload-text {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.ai-upload-subtext {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.ai-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  width: 100%;
}

.ai-result-section {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
}

.ai-result-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.ai-preview-card {
  background: var(--color-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.ai-preview-container {
  margin-top: var(--spacing-md);
  display: flex;
  justify-content: center;
  align-items: center;
}

.ai-preview-image {
  max-width: 100%;
  max-height: 400px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.ai-action-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

/* 响应式 */
@media (max-width: 767px) {
  .ai-result-layout {
    grid-template-columns: 1fr;
  }
  
  .ai-buttons {
    flex-direction: column;
  }
  
  .ai-action-buttons {
    flex-direction: column;
  }
}

/* Loading 指示器 */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 5px solid rgba(255, 255, 255, 0.3);
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading p {
  color: white;
  margin-top: 20px;
  font-size: 1.2em;
}

/* Warning Button */
.btn-warning {
  background: linear-gradient(135deg, #ff9500 0%, #ff6b00 100%);
  color: white;
}

.btn-warning:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 149, 0, 0.4);
}

/* ========== 微信登录相关样式 ========== */

.divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-lg) 0;
  color: var(--color-text-tertiary);
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.divider span {
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-wechat-login {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid #07c160;
  background: white;
  color: #07c160;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-wechat-login:hover {
  background: #07c160;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
}

.wechat-icon {
  font-size: 20px;
}

.wechat-login-container {
  text-align: center;
  padding: var(--spacing-lg) 0;
}

.qr-code-wrapper {
  width: 240px;
  height: 240px;
  margin: 0 auto var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.qr-code-wrapper img {
  max-width: 100%;
  max-height: 100%;
}

.qr-code-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--color-text-tertiary);
}

.qr-code-placeholder .loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.qr-tip {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.qr-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffc107;
  animation: pulse 1.5s ease-in-out infinite;
}

.status-indicator.success {
  background: #4caf50;
  animation: none;
}

.status-indicator.expired {
  background: #f44336;
  animation: none;
}

.status-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.btn-refresh-qr {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--color-border);
  background: white;
  color: var(--color-text-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-refresh-qr:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-bg-secondary);
}

/* 隐藏导航条里的「我的作品」按钮 */
#btnMyWorks,
#mobileBtnMyWorks,
.bottom-nav .nav-item[data-page="works"],
.nav-item[data-page="works"],
/* 隐藏个人中心菜单里的「我的作品」项 */
#userMenu a[href*="my-works"],
#userMenu a[href*="works"],
.user-menu-item:has(> a[href*="my-works"]),
.user-menu-item:has(> a[href*="works"]),
.user-menu-item:contains("我的作品") {
  display: none !important;
}

/**
 * 页脚样式
 */
.app-footer {
  background: var(--color-bg-tertiary);
  border-top: 1px solid var(--color-border-light);
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

.footer-content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-base);
  text-align: center;
}

.footer-links {
  margin-bottom: var(--spacing-md);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-divider {
  margin: 0 var(--spacing-sm);
  color: var(--color-text-tertiary);
}

.footer-beian {
  margin-bottom: var(--spacing-md);
}

.footer-beian a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-beian a:hover {
  color: var(--color-primary);
}

.footer-copyright {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
}