/* ==========================================================================
   翻墙鸭 (Fanqiangya) - Main Stylesheet
   Style: Neo-Brutalism / Pop-Art (Yellow & Black) + Clean Editorial Typography
   ========================================================================== */

:root {
  --primary: #FFD000;
  --primary-hover: #F5C400;
  --primary-light: #FFF8CC;
  --accent: #FF6B00;
  --accent-hover: #E05D00;
  --dark: #121212;
  --text-main: #1C1917;
  --text-muted: #57534E;
  --bg-main: #FFFDF5;
  --bg-card: #FFFFFF;
  --bg-subtle: #F7F5EC;
  --border-dark: #121212;
  --border-width: 2.5px;
  --shadow-offset: 4px;
  --shadow-dark: 4px 4px 0px var(--border-dark);
  --shadow-dark-lg: 6px 6px 0px var(--border-dark);
  --shadow-dark-sm: 2px 2px 0px var(--border-dark);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  /* Status Colors */
  --state-success-bg: #ECFDF5;
  --state-success-border: #10B981;
  --state-success-text: #065F46;
  --state-warning-bg: #FFFBEB;
  --state-warning-border: #F59E0B;
  --state-warning-text: #92400E;
  --state-danger-bg: #FEF2F2;
  --state-danger-border: #EF4444;
  --state-danger-text: #991B1B;
  --state-info-bg: #EFF6FF;
  --state-info-border: #3B82F6;
  --state-info-text: #1E40AF;

  --font-heading: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Microsoft YaHei', sans-serif;
  --font-body: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', Consolas, Monaco, 'Courier New', monospace;
  
  --header-height: 72px;
}

/* Base Resets */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Dot pattern overlay utility */
.bg-dots {
  background-image: radial-gradient(var(--border-dark) 1.2px, transparent 1.2px);
  background-size: 18px 18px;
  background-color: var(--bg-main);
}

.bg-dots-subtle {
  background-image: radial-gradient(rgba(18, 18, 18, 0.15) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* Accessibility Focus Outline */
:focus-visible {
  outline: 3px solid var(--border-dark);
  outline-offset: 3px;
}

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

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container-narrow {
  max-width: 860px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.25;
  margin-bottom: 0.75em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }

@media (min-width: 768px) {
  h1 { font-size: 3rem; }
  h2 { font-size: 2.15rem; }
  h3 { font-size: 1.5rem; }
}

p {
  margin-bottom: 1.25rem;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--bg-main);
  border-bottom: var(--border-width) solid var(--border-dark);
  display: flex;
  align-items: center;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.brand-logo img.brand-main-icon, .brand-logo svg {
  width: 42px;
  height: 42px;
}

.anime-duck-text {
  display: inline-block;
  font-weight: 900;
  font-size: 1.2em;
  color: #FFD000;
  text-shadow: 
    2px 2px 0px var(--border-dark),
    -1.5px -1.5px 0px var(--border-dark),
    1.5px -1.5px 0px var(--border-dark),
    -1.5px 1.5px 0px var(--border-dark),
    2px 0px 0px var(--border-dark),
    0px 2px 0px var(--border-dark);
  transform: rotate(-5deg) translateY(-1px);
  margin-left: 2px;
  line-height: 1;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.2s ease;
}

.brand-logo:hover .anime-duck-text {
  transform: rotate(12deg) scale(1.3) translateY(-2px);
  color: #FF6B00;
}

.brand-badge {
  background-color: var(--primary);
  border: 1.5px solid var(--border-dark);
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
  box-shadow: 2px 2px 0px var(--border-dark);
  display: inline-block;
  transform: rotate(-3deg);
  animation: quackBadgeShake 3s ease-in-out infinite;
  margin-left: 2px;
}

.brand-badge-2 {
  transform: rotate(4deg);
  animation-delay: 0.25s;
}

.brand-badge-3 {
  transform: rotate(-6deg);
  animation-delay: 0.5s;
}

@keyframes quackBadgeShake {
  0%, 75%, 100% {
    transform: rotate(-3deg) scale(1);
  }
  80% {
    transform: rotate(-14deg) scale(1.2) translateY(-3px);
  }
  85% {
    transform: rotate(10deg) scale(1.25) translateY(-4px);
  }
  90% {
    transform: rotate(-8deg) scale(1.15) translateY(-2px);
  }
  95% {
    transform: rotate(2deg) scale(1.05);
  }
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  list-style: none;
}

.nav-link {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, border-color 0.15s ease;
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
  background-color: var(--primary);
  border-color: var(--border-dark);
  box-shadow: 2px 2px 0px var(--border-dark);
}

/* Dropdown Menu (专题 ∨ Nav Item - Minimalist Structured Style) */
.nav-item-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 250px;
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark-lg);
  padding: 0.5rem 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 200;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu,
.dropdown-menu.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
}

/* Structured Left-Right Alignment Link Styling */
.dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--dark);
  border-left: 3.5px solid transparent;
  transition: background-color 0.12s ease, border-color 0.12s ease;
}

.dropdown-link .item-name {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.dropdown-link .item-num {
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: var(--text-muted);
  font-weight: 800;
}

.dropdown-link:hover {
  background-color: var(--primary-light);
  border-left-color: var(--accent);
  color: var(--dark);
}

/* Default Highlighted / Active State for Dropdown Item */
.dropdown-link.is-active {
  background-color: var(--primary-light);
  border-left-color: var(--border-dark);
  font-weight: 800;
}

.dropdown-link-badge {
  font-size: 0.72rem;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-dark);
  padding: 0.1rem 0.45rem;
  border-radius: var(--radius-sm);
  font-weight: 800;
  color: var(--dark);
  white-space: nowrap;
}

.dropdown-link-badge.badge-highlight {
  background-color: var(--primary);
  box-shadow: 1.5px 1.5px 0px var(--border-dark);
}

.dropdown-link-badge.badge-accent {
  background-color: var(--accent);
  color: #FFF;
}

.mobile-menu-toggle {
  display: none;
  background: var(--primary);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-sm);
  box-shadow: 3px 3px 0px var(--border-dark);
  padding: 0.5rem 0.75rem;
  font-weight: 800;
  cursor: pointer;
  align-items: center;
  gap: 0.4rem;
}

/* Mobile Nav Drawer */
@media (max-width: 992px) {
  .mobile-menu-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background-color: var(--bg-main);
    border-bottom: var(--border-width) solid var(--border-dark);
    padding: 1.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
    display: none;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
  }
  .main-nav.is-open {
    display: flex;
  }
  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  .nav-link {
    justify-content: center;
    padding: 0.75rem;
  }
  .nav-item-dropdown {
    width: 100%;
  }
  .dropdown-menu {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 1.5px solid var(--border-dark);
    background-color: var(--bg-subtle);
    margin-top: 0.5rem;
    display: none;
  }
  .nav-item-dropdown.is-mobile-open .dropdown-menu {
    display: block;
  }
}

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--border-dark);
  box-shadow: var(--shadow-dark);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-dark-lg);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-dark-sm);
}

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

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

.btn-accent {
  background-color: var(--accent);
  color: #FFFFFF;
}

.btn-accent:hover {
  background-color: var(--accent-hover);
}

.btn-outline {
  background-color: var(--bg-card);
  color: var(--dark);
}

.btn-outline:hover {
  background-color: var(--bg-subtle);
}

.btn-sm {
  padding: 0.4rem 0.86rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  box-shadow: 2.5px 2.5px 0px var(--border-dark);
}

.btn-sm:hover {
  box-shadow: 4px 4px 0px var(--border-dark);
}

/* Real Downloads Table Component */
.download-box {
  background: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  padding: 1.5rem;
  margin: 2rem 0;
}

.download-box-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--border-dark);
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.download-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--primary);
  border: 1.5px solid var(--border-dark);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: 2px 2px 0px var(--border-dark);
}

.download-link-btn:hover {
  background-color: var(--primary-hover);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border-dark);
}

/* Cards & Containers */
.pop-card {
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  padding: 1.5rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.pop-card-interactive:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-dark-lg);
}

.pop-card-yellow {
  background-color: var(--primary-light);
}

/* Badges & Stickers */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-dark);
  background-color: var(--bg-card);
  box-shadow: 2px 2px 0px var(--border-dark);
  color: var(--dark);
  white-space: nowrap;
}

.badge-primary { background-color: var(--primary); }
.badge-accent { background-color: var(--accent); color: #FFF; }
.badge-subtle { background-color: var(--bg-subtle); }

/* Structured Minimal List Component (序号. 名称 + 右侧短标签) */
.structured-nav-list {
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  padding: 0.75rem 0;
  list-style: none;
}

.structured-nav-item {
  border-bottom: 1px dashed var(--bg-subtle);
}

.structured-nav-item:last-child {
  border-bottom: none;
}

.structured-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  color: var(--dark);
  font-weight: 700;
  transition: background-color 0.12s ease;
}

.structured-nav-link:hover {
  background-color: var(--primary-light);
}

.structured-nav-link.is-active {
  background-color: var(--primary);
  border-left: 4px solid var(--border-dark);
  font-weight: 800;
}

/* Hero Section */
.hero-section {
  padding: 3.5rem 0 2.5rem;
  border-bottom: var(--border-width) solid var(--border-dark);
  background-color: var(--bg-main);
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 850px) {
  .hero-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.hero-tag {
  display: inline-block;
  margin-bottom: 1rem;
}

.hero-title {
  margin-bottom: 1rem;
}

.hero-title span.highlight {
  background-color: var(--primary);
  padding: 0 0.4rem;
  border: 2px solid var(--border-dark);
  box-shadow: 3px 3px 0px var(--border-dark);
  display: inline-block;
  transform: rotate(-1deg);
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Mascot Graphic */
.hero-mascot-wrapper {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-mascot-card {
  background-color: var(--primary);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-lg);
  box-shadow: 8px 8px 0px var(--border-dark);
  padding: 2rem;
  text-align: center;
  position: relative;
  width: 100%;
  max-width: 360px;
}

.speech-bubble {
  position: relative;
  background: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: 4px 4px 0px var(--border-dark);
  margin-bottom: 1.25rem;
  color: var(--dark);
}

.speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 14px 12px 0;
  border-style: solid;
  border-color: var(--border-dark) transparent;
  display: block;
  width: 0;
}

.speech-bubble::before {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 10px 9px 0;
  border-style: solid;
  border-color: var(--bg-card) transparent;
  display: block;
  width: 0;
  z-index: 1;
}

/* Categories Section */
.categories-section {
  padding: 3rem 0;
  border-bottom: var(--border-width) solid var(--border-dark);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-icon {
  width: 36px;
  height: 36px;
  background-color: var(--primary);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 2px 2px 0px var(--border-dark);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.category-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.25rem;
  border-radius: var(--radius-md);
}

.category-card .icon-box {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.category-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.category-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0;
  flex-grow: 1;
}

/* Articles Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.article-card-header {
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.article-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-card-title a:hover {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-decoration-color: var(--primary);
}

.article-card-excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-top: 1.5px dashed #E7E5E4;
  padding-top: 0.85rem;
  margin-top: auto;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Roast Rating Component */
.roast-rating-box {
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  padding: 1.5rem;
  margin: 1.75rem 0;
}

.roast-rating-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--border-dark);
  padding-bottom: 0.85rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.roast-rating-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 0;
}

.roast-score-badge {
  background-color: var(--primary);
  border: 2px solid var(--border-dark);
  box-shadow: 2px 2px 0px var(--border-dark);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm);
  font-weight: 900;
  font-size: 1.1rem;
}

.roast-ducks-visual {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.roast-duck-icon {
  width: 32px;
  height: 32px;
  transition: transform 0.15s ease;
}

.roast-duck-icon.inactive {
  filter: grayscale(100%) opacity(0.3);
}

.roast-rating-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .roast-rating-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.roast-rating-item {
  background: var(--bg-subtle);
  border: 1.5px solid var(--border-dark);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.roast-rating-item-label {
  font-weight: 700;
  font-size: 0.9rem;
}

.roast-rating-item-value {
  font-weight: 800;
  color: var(--accent);
}

.roast-rating-notice {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 1rem;
  background-color: var(--primary-light);
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-dark);
}

/* Article Detail Page Layout */
.article-detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 2rem;
}

@media (min-width: 992px) {
  .article-detail-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}

/* Table of Contents (TOC) */
.toc-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  max-height: calc(100vh - var(--header-height) - 40px);
  overflow-y: auto;
}

.toc-card {
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  padding: 1.25rem;
}

.toc-title {
  font-size: 1.05rem;
  margin-bottom: 0.85rem;
  border-bottom: 2px solid var(--border-dark);
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toc-list {
  list-style: none;
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toc-link {
  color: var(--text-muted);
  transition: color 0.15s ease, font-weight 0.15s ease;
  display: block;
  line-height: 1.4;
}

.toc-link:hover, .toc-link.active {
  color: var(--dark);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: var(--primary);
}

.toc-mobile-wrapper {
  display: block;
  margin-bottom: 1.5rem;
}

@media (min-width: 992px) {
  .toc-mobile-wrapper {
    display: none;
  }
}

.toc-mobile-toggle {
  width: 100%;
  background-color: var(--primary-light);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  font-weight: 800;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-dark-sm);
}

.toc-mobile-content {
  display: none;
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 1.25rem;
}

.toc-mobile-content.is-open {
  display: block;
}

/* Article Content Formatting (Prose) */
.article-header {
  margin-bottom: 2rem;
  border-bottom: var(--border-width) solid var(--border-dark);
  padding-bottom: 1.75rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.affiliate-disclosure {
  background-color: var(--primary-light);
  border: 1.5px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.9rem;
  font-size: 0.84rem;
  color: var(--dark);
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.prose {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-main);
}

.prose h2 {
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--border-dark);
}

.prose h3 {
  margin-top: 1.75rem;
  margin-bottom: 0.85rem;
}

.prose p {
  margin-bottom: 1.35rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.35rem;
  padding-left: 1.5rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose strong {
  color: var(--dark);
}

.prose code:not(pre code) {
  background-color: var(--bg-subtle);
  color: #C026D3;
  padding: 0.2rem 0.45rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
  border: 1px solid rgba(18, 18, 18, 0.2);
}

/* Code Blocks with Header & Copy Button */
.code-block-wrapper {
  margin: 1.5rem 0;
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  overflow: hidden;
  background-color: #1E1E24;
}

.code-block-header {
  background-color: #121216;
  padding: 0.6rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1.5px solid #2D2D35;
  color: #A1A1AA;
  font-size: 0.82rem;
  font-family: var(--font-mono);
}

.code-copy-btn {
  background-color: #272730;
  color: #F4F4F5;
  border: 1px solid #3F3F46;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  cursor: pointer;
  transition: background-color 0.15s ease;
  font-family: var(--font-body);
  font-weight: 700;
}

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

.code-block-wrapper pre {
  padding: 1.25rem;
  overflow-x: auto;
  color: #F4F4F5;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Callout / Alert Boxes */
.callout {
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.35rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-dark-sm);
}

.callout-title {
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.callout-tip {
  background-color: var(--state-success-bg);
  border-color: var(--state-success-border);
  color: var(--state-success-text);
}

.callout-warning {
  background-color: var(--state-warning-bg);
  border-color: var(--state-warning-border);
  color: var(--state-warning-text);
}

.callout-danger {
  background-color: var(--state-danger-bg);
  border-color: var(--state-danger-border);
  color: var(--state-danger-text);
}

.callout-info {
  background-color: var(--primary-light);
  border-color: var(--border-dark);
  color: var(--dark);
}

/* Search & Filter Controls */
.filter-bar {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.25rem;
}

@media (min-width: 768px) {
  .filter-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.search-input-wrap {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.6rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark-sm);
  background-color: var(--bg-card);
}

.search-input:focus {
  outline: none;
  box-shadow: var(--shadow-dark);
  border-color: var(--border-dark);
}

.search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-muted);
}

.category-filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-tag {
  background-color: var(--bg-card);
  border: 1.5px solid var(--border-dark);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filter-tag:hover, .filter-tag.active {
  background-color: var(--primary);
  box-shadow: 2px 2px 0px var(--border-dark);
}

/* Empty State / 404 Layout */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  background-color: var(--bg-card);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dark);
  margin: 2rem 0;
}

.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

/* Footer Section */
.site-footer {
  margin-top: auto;
  background-color: var(--dark);
  color: #F5F5F4;
  border-top: var(--border-width) solid var(--border-dark);
  padding: 3.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-brand-title {
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand p {
  color: #A8A29E;
  font-size: 0.92rem;
  max-width: 400px;
}

.footer-heading {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 1rem;
  font-weight: 800;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.9rem;
}

.footer-links a {
  color: #D6D3D1;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  border-top: 1px solid #27272A;
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #71717A;
  text-align: center;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* Floating Back-to-Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 90;
  background-color: var(--primary);
  color: var(--dark);
  border: var(--border-width) solid var(--border-dark);
  border-radius: var(--radius-full);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-dark);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-dark-lg);
}

/* ==========================================
   FLOATING DUCK DOLL MASCOT (Fixed Bottom-Left)
   ========================================== */
/* ==========================================
   FLOATING DUCK DOLL MASCOT (Fixed Bottom-Left)
   ========================================== */
.duck-mascot-widget {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 999;
  pointer-events: none;
}

.duck-mascot-scaler {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transform-origin: bottom left;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation: duckFloat 4s ease-in-out infinite;
  pointer-events: none;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.duck-speech-bubble {
  background-color: #FFFFFF;
  border: 3.5px solid #000000;
  border-radius: var(--radius-lg);
  box-shadow: 4px 4px 0px #000000;
  padding: 0.8rem 1.15rem;
  max-width: 290px;
  font-size: 0.92rem;
  line-height: 1.45;
  font-weight: 800;
  color: #000000;
  margin-bottom: 12px;
  position: relative;
  z-index: 10;
  opacity: 0;
  transform: translateY(12px) scale(0.9);
  transition: opacity 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.duck-speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -11px;
  left: 28px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 11px solid #000000;
  z-index: 2;
}

.duck-speech-bubble::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 30px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid #FFFFFF;
  z-index: 3;
}

.duck-speech-bubble.is-popped {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.duck-doll-wrapper {
  pointer-events: auto;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.duck-doll-body {
  position: relative;
  z-index: 2;
  display: inline-block;
  transform-origin: bottom left;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.duck-doll-svg {
  filter: drop-shadow(4px 4px 0px #000000);
  display: block;
  overflow: visible;
  width: 110px;
  height: 110px;
}

.duck-feather {
  transform-origin: 60px 10px;
  animation: featherWiggle 3s ease-in-out infinite;
}

.duck-glint-left, .duck-glint-right {
  animation: glintShine 5s infinite;
}

.duck-progress-badge {
  position: absolute;
  bottom: -2px;
  right: -6px;
  background-color: #FFD000;
  color: #000000;
  border: 2.5px solid #000000;
  box-shadow: 2px 2px 0px #000000;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.18rem 0.6rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
  transition: background-color 0.2s ease, transform 0.2s ease;
  -webkit-font-smoothing: antialiased;
}

.duck-progress-badge.badge-full {
  background-color: #00E676;
  color: #121212;
}

/* Animations */
@keyframes duckFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes featherWiggle {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(8deg); }
}

@keyframes glintShine {
  0%, 90%, 100% { opacity: 0.8; }
  94% { opacity: 0.1; }
}

/* Mouse Hover / Touch Reaction Animations ("鸭子与字体同步联动与无遮挡动画") */
.duck-mascot-scaler.is-wiggling {
  animation: duckTouchWiggle 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) !important;
}

.duck-mascot-scaler.is-bouncing {
  animation: duckPopBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

@keyframes duckTouchWiggle {
  0% { transform: scale(1.05); }
  25% { transform: scale(1.1) rotate(-6deg); }
  50% { transform: scale(1.15) rotate(6deg); }
  75% { transform: scale(1.08) rotate(-3deg); }
  100% { transform: scale(1); }
}

@keyframes duckPopBounce {
  0% { transform: translateY(0); }
  40% { transform: translateY(-14px); }
  70% { transform: translateY(3px); }
  100% { transform: translateY(0); }
}

/* ==========================================
   GLOBAL HOVER MOTION & ANTI-BLUR SYSTEM ("无模糊互动")
   ========================================== */
.btn, .nav-link, .card, .pop-card, .topic-card, .roast-card, .structured-nav-link, .hero-cta, .badge, .quick-tag, .article-card, .duck-rating-box, .duck-coupon-box {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  will-change: transform, box-shadow;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.15s ease !important;
}

.btn:hover, .hero-cta:hover {
  transform: translateY(-3px) !important;
  box-shadow: 5px 5px 0px var(--border-dark) !important;
}

.card:hover, .pop-card:hover, .topic-card:hover, .roast-card:hover, .structured-nav-link:hover, .article-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--shadow-dark-lg) !important;
}

.nav-link:hover {
  transform: translateY(-2px) !important;
}

.badge:hover, .quick-tag:hover {
  transform: translateY(-2px) !important;
}

/* Respect Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


/* Pop-Art Visual Category Navigation Bar */
.pop-category-nav {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 0.75rem;
  background-color: var(--bg-card, #FFFFFF);
  border: 3px solid var(--dark, #000000);
  border-radius: 12px;
  box-shadow: 4px 4px 0px var(--dark, #000000);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--dark, #000000);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.filter-btn .cat-icon {
  font-size: 2rem;
  margin-bottom: 0.4rem;
  line-height: 1;
  transition: transform 0.15s ease;
}

.filter-btn .cat-name {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.filter-btn .cat-count {
  font-size: 0.72rem;
  font-weight: 700;
  color: #4B5563;
  background: var(--bg-subtle, #F3F4F6);
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  border: 1px solid var(--dark, #000000);
}

.filter-btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0px var(--dark, #000000);
  background-color: #FEF08A;
}

.filter-btn:hover .cat-icon {
  transform: scale(1.15) rotate(-5deg);
}

.filter-btn.active {
  background-color: var(--accent, #F59E0B);
  color: #000000;
  border: 3px solid #000000;
  box-shadow: 5px 5px 0px #000000;
  transform: translate(-2px, -2px);
}

.filter-btn.active .cat-count {
  background: #000000;
  color: #FFFFFF;
  border-color: #000000;
}

/* ==========================================
   CONTACT DUCK TOOLTIP & RATING COMPONENT
   ========================================== */

/* Contact Duck Nav & Footer Wrapper */
.contact-duck-wrapper {
  position: relative;
  display: inline-block;
}

.contact-duck-link {
  color: var(--accent) !important;
  font-weight: 800 !important;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  animation: contactDuckFloat 3s ease-in-out infinite;
  text-decoration: none;
  cursor: pointer;
}

@keyframes contactDuckFloat {
  0%, 100% {
    transform: translateY(0);
    text-shadow: 0 0 0px rgba(245, 158, 11, 0);
  }
  50% {
    transform: translateY(-2px);
    text-shadow: 0 2px 8px rgba(245, 158, 11, 0.4);
  }
}

.contact-duck-tooltip {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.contact-duck-tooltip .tooltip-arrow {
  position: absolute;
  top: -9px;
  right: 24px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 9px solid #18181C;
  z-index: 2;
}

.contact-duck-tooltip::before {
  content: '';
  position: absolute;
  top: -12px;
  right: 23px;
  width: 0;
  height: 0;
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-bottom: 10px solid #000000;
  z-index: 1;
}

.footer-contact-duck .contact-duck-tooltip .tooltip-arrow {
  top: auto;
  bottom: -9px;
  border-bottom: none;
  border-top: 9px solid #18181C;
}

.footer-contact-duck .contact-duck-tooltip::before {
  top: auto;
  bottom: -12px;
  border-bottom: none;
  border-top: 10px solid #000000;
}

.contact-duck-tooltip .tooltip-text {
  font-size: 0.92rem;
  color: #FFFFFF;
  line-height: 1.5;
  margin-bottom: 0.7rem;
  font-weight: 800;
}

.contact-duck-tooltip .tooltip-sub {
  display: block;
  margin-top: 4px;
  color: #FF9900;
  font-size: 0.83rem;
  font-weight: 700;
}

.contact-duck-tooltip .tooltip-code {
  display: inline-block;
  color: #FFD000;
  background: rgba(255, 208, 0, 0.18);
  border: 1.5px solid rgba(255, 208, 0, 0.4);
  padding: 1px 7px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-weight: 800;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.contact-duck-tooltip .tooltip-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 0.2rem;
}

.contact-duck-tooltip .tooltip-copy-btn {
  background: #FF6B00;
  color: #FFFFFF;
  border: 2px solid #000000;
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 2.5px 2.5px 0px #000000;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
}

.contact-duck-tooltip .tooltip-copy-btn:hover {
  background: #E05D00;
  transform: translateY(-2px);
  box-shadow: 3.5px 3.5px 0px #000000;
}

.contact-duck-tooltip .tooltip-goto-link {
  color: #9CA3AF;
  font-size: 0.84rem;
  text-decoration: underline;
  font-weight: 700;
  transition: color 0.15s ease;
}

.contact-duck-tooltip .tooltip-goto-link:hover {
  color: #FFD000;
}

/* Duck Rating Component */
.duck-rating-box {
  background: #FFFBEB;
  border: 2.5px solid var(--dark);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0;
  box-shadow: 4px 4px 0px var(--dark);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.duck-rating-box:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0px var(--dark);
}

.duck-rating-box .rating-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.duck-rating-box .rating-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.duck-rating-box .rating-badge {
  font-size: 0.85rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1.5px solid var(--dark);
  box-shadow: 2px 2px 0px var(--dark);
  display: inline-flex;
  align-items: center;
}

.duck-rating-box .rating-badge.badge-accent {
  background: var(--accent);
  color: var(--dark);
  animation: badgeSway 3.5s ease-in-out infinite;
}

.duck-rating-box .rating-badge.badge-subtle {
  background: #FEF3C7;
  color: #B45309;
}

@keyframes badgeSway {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-3deg); }
  75% { transform: rotate(3deg); }
}

.duck-rating-box .rating-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: #6B7280;
}

.duck-rating-box .rating-score-display {
  font-family: var(--font-mono);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.duck-rating-box .rating-score-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: #D97706;
  line-height: 1;
}

.duck-rating-box .rating-score-max {
  font-size: 1rem;
  font-weight: 700;
  color: #9CA3AF;
}

.duck-rating-box .rating-progress-track {
  height: 14px;
  background: #E5E7EB;
  border: 1.5px solid var(--dark);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.duck-rating-box .rating-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #F59E0B, #D97706);
  border-radius: 6px;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-reduced-motion: reduce) {
  .contact-duck-link {
    animation: none !important;
  }
  .duck-rating-box .rating-badge.badge-accent {
    animation: none !important;
  }
  .duck-rating-box .rating-progress-bar {
    transition: none !important;
  }
}

/* ==========================================
   PAOLU DUCK STATUS BADGES
   ========================================== */
.badge-danger {
  background-color: #FEE2E2;
  color: #DC2626;
  border: 1.5px solid #000000;
  box-shadow: 2px 2px 0px #000000;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 20px;
}

.badge-warning {
  background-color: #FEF3C7;
  color: #B45309;
  border: 1.5px solid #000000;
  box-shadow: 2px 2px 0px #000000;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 20px;
}

.badge-info {
  background-color: #E0F2FE;
  color: #0369A1;
  border: 1.5px solid #000000;
  box-shadow: 2px 2px 0px #000000;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 20px;
}

/* ==========================================
   DUCK PROMO COUPON BOX COMPONENT
   ========================================== */
.duck-coupon-box {
  background: #FFFBEB;
  border: 2px dashed #D97706;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  margin: 0.85rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  box-shadow: 2px 2px 0px var(--dark);
}

.duck-coupon-box .coupon-text {
  font-size: 0.92rem;
  color: #92400E;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.duck-coupon-box .coupon-code-badge {
  background: #FFFFFF;
  color: #D97706;
  padding: 2px 10px;
  border-radius: 6px;
  border: 1.5px solid #F59E0B;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  box-shadow: 1px 1px 0px var(--dark);
}

.duck-coupon-box .coupon-discount-tag {
  font-size: 0.82rem;
  color: #B45309;
  background: #FEF3C7;
  padding: 1px 6px;
  border-radius: 4px;
}

.duck-coupon-box .copy-coupon-btn {
  background: var(--accent);
  color: var(--dark);
  border: 1.5px solid var(--dark);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 2px 2px 0px var(--dark);
  transition: all 0.15s ease;
}

.duck-coupon-box .copy-coupon-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--dark);
}

/* ==========================================================================
   翻墙鸭 - 测评鸭右侧悬浮导航栏 (Airport Floating Navigation)
   ========================================================================== */

/* 1. 区域 scroll-margin 避免被 Header 遮挡 */
[id^="airport-"], .pop-card[id^="airport-"] {
  scroll-margin-top: calc(var(--header-height, 72px) + 24px);
}

/* 2. 桌面端悬浮容器：定位在视口右侧、垂直居中 */
.duck-float-nav-wrapper {
  position: fixed;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  pointer-events: none;
}

/* 导航主卡片 */
.duck-float-nav {
  pointer-events: auto;
  width: 215px;
  max-height: min(calc(100vh - 120px), 520px);
  background-color: var(--bg-card, #FFFFFF);
  border: var(--border-width, 2.5px) solid var(--border-dark, #121212);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow-dark, 4px 4px 0px #121212);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease, box-shadow 0.2s ease;
}

/* 移动端切换按钮默认隐藏 */
.duck-float-toggle {
  display: none;
}

.duck-float-backdrop {
  display: none;
}

/* 头部样式 */
.duck-float-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.85rem;
  background-color: var(--primary-light, #FFF8CC);
  border-bottom: var(--border-width, 2.5px) solid var(--border-dark, #121212);
}

.duck-float-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.9rem;
  color: var(--dark, #121212);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.duck-float-close {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark, #121212);
  cursor: pointer;
  padding: 2px 6px;
  line-height: 1;
}

/* 主体列表可滚动区 */
.duck-float-body {
  padding: 0.5rem 0.4rem;
  overflow-y: auto;
  flex: 1;
  scrollbar-width: thin;
  scrollbar-color: var(--primary, #FFD000) transparent;
}

.duck-float-body::-webkit-scrollbar {
  width: 5px;
}
.duck-float-body::-webkit-scrollbar-thumb {
  background-color: var(--primary, #FFD000);
  border-radius: 4px;
}

.duck-float-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.duck-float-item {
  margin: 0;
}

.duck-float-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.6rem;
  border-radius: var(--radius-sm, 6px);
  text-decoration: none;
  color: var(--text-main, #1C1917);
  font-size: 0.85rem;
  font-weight: 700;
  border: 1.5px solid transparent;
  transition: all 0.15s ease;
  gap: 0.35rem;
}

.duck-link-num {
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  color: var(--text-muted, #78716C);
  flex-shrink: 0;
}

.duck-link-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.duck-link-tag {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 1px 5px;
  border-radius: 4px;
  white-space: nowrap;
  border: 1px solid var(--border-dark, #121212);
  background-color: var(--bg-subtle, #F7F5EC);
  color: var(--text-muted, #57534E);
  flex-shrink: 0;
}

.duck-link-tag.badge-accent {
  background-color: var(--accent, #FF6B00);
  color: #FFFFFF;
}

/* 悬停效果 */
.duck-float-link:hover:not(.is-active) {
  background-color: var(--bg-subtle, #F7F5EC);
  border-color: var(--border-dark, #121212);
  transform: translateX(-2px);
}

/* 🔥 高亮选中状态 (Active State) */
.duck-float-link.is-active {
  background-color: var(--primary, #FFD000);
  color: var(--dark, #121212);
  border-color: var(--border-dark, #121212);
  box-shadow: 2px 2px 0px var(--border-dark, #121212);
  font-weight: 900;
}

.duck-float-link.is-active .duck-link-num {
  color: var(--dark, #121212);
  font-weight: 900;
}

.duck-float-link.is-active .duck-link-tag:not(.badge-accent) {
  background-color: #FFFFFF;
  color: var(--dark, #121212);
}

/* 底部“返回鸭头”区域 */
.duck-float-footer {
  padding: 0.5rem 0.85rem;
  border-top: 1.5px solid var(--border-dark, #121212);
  background-color: var(--bg-main, #FFFDF5);
}

.duck-float-top-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.4rem 0.6rem;
  background-color: var(--primary-light, #FFF8CC);
  border: 1.5px solid var(--border-dark, #121212);
  border-radius: var(--radius-sm, 6px);
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--dark, #121212);
  text-decoration: none;
  transition: all 0.15s ease;
  box-shadow: var(--shadow-dark-sm, 2px 2px 0px #121212);
}

.duck-float-top-btn:hover {
  background-color: var(--primary, #FFD000);
  transform: translateY(-1px);
}

/* 📱 移动端自适应 (< 992px) */
@media (max-width: 991px) {
  .duck-float-nav-wrapper {
    right: 1rem;
    top: auto;
    bottom: 5rem;
    transform: none;
  }

  .duck-float-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    pointer-events: auto;
    background-color: var(--primary, #FFD000);
    border: var(--border-width, 2.5px) solid var(--border-dark, #121212);
    border-radius: var(--radius-full, 9999px);
    box-shadow: var(--shadow-dark, 4px 4px 0px #121212);
    padding: 0.6rem 1rem;
    font-weight: 900;
    font-size: 0.9rem;
    color: var(--dark, #121212);
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s ease;
  }

  .duck-float-toggle:hover, .duck-float-toggle:focus-visible {
    transform: scale(1.05);
    background-color: var(--primary-hover, #F5C400);
  }

  .duck-float-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(18, 18, 18, 0.4);
    backdrop-filter: blur(2px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }

  .duck-float-backdrop.is-active {
    opacity: 1;
    pointer-events: auto;
  }

  .duck-float-nav {
    position: fixed;
    right: 1rem;
    bottom: 8.5rem;
    top: auto;
    z-index: 999;
    width: min(280px, calc(100vw - 2rem));
    max-height: calc(75vh - 80px);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
  }

  .duck-float-nav.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }

  .duck-float-close {
    display: inline-block;
  }
}

/* 尊重用户减弱动画偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }
  .duck-float-nav,
  .duck-float-toggle,
  .duck-float-backdrop,
  .duck-float-link {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
}