/* ==========================================================================
   数虎心灵鸡汤 (DataTiger Soul Sanctuary) - Modern Aesthetics CSS Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Zhi+Mang+Xing&display=swap');

:root {
  /* Color Palette - Light Default Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --accent-primary: #4f46e5;
  --accent-secondary: #db2777;
  --accent-glow: rgba(79, 70, 229, 0.15);
  --teal-glow: rgba(13, 148, 136, 0.15);
  --amber-glow: rgba(217, 119, 6, 0.15);
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;

  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-serif: 'Noto Serif SC', serif;
  --font-calligraphy: 'Zhi Mang Xing', cursive, serif;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-primary: #0b0f19;
  --bg-secondary: #131926;
  --bg-tertiary: #1c2436;
  --accent-primary: #6366f1;
  --accent-secondary: #ec4899;
  --accent-glow: rgba(99, 102, 241, 0.35);
  --teal-glow: rgba(20, 184, 166, 0.35);
  --amber-glow: rgba(245, 158, 11, 0.35);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-subtle: #6b7280;

  --card-bg: rgba(19, 25, 38, 0.75);
  --card-border: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(19, 25, 38, 0.8);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Animated Gradient Orbs */
.bg-ambient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.35;
  animation: floatOrb 20s infinite alternate cubic-bezier(0.45, 0.05, 0.55, 0.95);
}

.orb-1 {
  top: -10%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #6366f1 0%, transparent 70%);
}

.orb-2 {
  bottom: 10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #ec4899 0%, transparent 70%);
  animation-delay: -7s;
}

.orb-3 {
  top: 40%;
  left: 45%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #14b8a6 0%, transparent 70%);
  animation-delay: -12s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.1); }
  100% { transform: translate(-40px, 80px) scale(0.95); }
}

/* Glassmorphism Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.8rem 2rem;
  transition: all var(--transition-fast);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-glow);
  transition: transform var(--transition-fast);
}

.brand-logo:hover .logo-avatar {
  transform: rotate(10deg) scale(1.05);
}

.brand-title {
  background: linear-gradient(135deg, #f43f5e, #ec4899, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-badge {
  font-size: 0.7rem;
  background: var(--accent-glow);
  color: var(--accent-primary);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  margin-left: 0.4rem;
  vertical-align: middle;
  border: 1px solid var(--glass-border);
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--text-main);
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  box-shadow: 0 4px 15px var(--accent-glow);
}

/* Header Utilities (Theme toggle & Sound player) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.action-btn {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.1rem;
}

.action-btn:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.action-btn.active {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Main Container Layout */
.main-wrapper {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  width: 100%;
}

/* Section Switcher Display */
.app-section {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.app-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Section 1: 首页 (Home & Hero Sanctuary)
   ========================================================================== */
.hero-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 420px;
  display: flex;
  align-items: center;
  padding: 3.5rem;
  margin-bottom: 2.5rem;
  background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.25), rgba(19, 25, 38, 0.9)),
              url('hero_sanctuary_bg.jpg') center/cover no-repeat;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 30%, rgba(15, 23, 42, 0.45) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: #ffffff;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: #e2e8f0;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-btn-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #8b5cf6);
  color: #fff;
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-full);
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px var(--accent-glow);
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-secondary {
  background: var(--card-bg);
  color: var(--text-main);
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--glass-border);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

/* Daily Inspiration Wisdom Card Generator */
.inspiration-section {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.8rem;
  margin-bottom: 3rem;
}

.wisdom-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--glass-shadow);
}

.wisdom-quote-icon {
  font-size: 3rem;
  color: var(--accent-primary);
  opacity: 0.25;
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: serif;
}

.wisdom-quote-text {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.wisdom-author {
  font-size: 0.95rem;
  color: var(--accent-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.wisdom-actions {
  margin-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--card-border);
  padding-top: 1.2rem;
}

/* Mood Check-In Widget */
.mood-widget {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: var(--glass-shadow);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.mood-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.mood-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.4rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-main);
}

.mood-btn:hover, .mood-btn.selected {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  transform: scale(1.05);
}

.mood-emoji {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.2rem;
}

.mood-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mood-response {
  font-size: 0.88rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-primary);
  display: none;
}

/* Quick Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: all var(--transition-normal);
  cursor: pointer;
  box-shadow: var(--glass-shadow);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.bg-purple { background: rgba(79, 70, 229, 0.12); color: #4f46e5; }
.bg-pink { background: rgba(219, 39, 119, 0.12); color: #db2777; }
.bg-teal { background: rgba(13, 148, 136, 0.12); color: #0d9488; }

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Section 2: 网页介绍 (About / Sanctuary Story)
   ========================================================================== */
.about-header {
  text-align: center;
  max-width: 700px;
  margin: 1rem auto 3rem;
}

.section-tag {
  color: var(--accent-primary);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-heading {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-subheading {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.about-quote-box {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(219, 39, 119, 0.08));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  box-shadow: var(--glass-shadow);
}

.about-quote-text {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  line-height: 2;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.pillar-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--glass-shadow);
}

.pillar-badge {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  margin: 0 auto 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.pillar-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.pillar-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--glass-shadow);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  margin-bottom: 0.3rem;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Section 3: 心灵鸡汤 (Soul Soup Articles)
   ========================================================================== */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.category-tabs {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.tab-chip {
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tab-chip:hover, .tab-chip.active {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

.search-box {
  position: relative;
  width: 280px;
}

.search-input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.4rem;
  border-radius: var(--radius-full);
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--accent-primary);
}

.search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.8rem;
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--glass-shadow);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent-primary);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.article-img-wrapper {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.article-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-img {
  transform: scale(1.06);
}

.article-category {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.article-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  line-height: 1.4;
  color: var(--text-main);
}

.article-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--card-border);
  padding-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-subtle);
}

.read-btn {
  color: var(--accent-primary);
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.88rem;
  transition: transform var(--transition-fast);
}

.read-btn:hover {
  transform: translateX(4px);
}

/* Modal Article Viewer */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.active {
  display: flex;
  animation: fadeIn 0.25s ease;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.modal-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.modal-img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
}

.modal-text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 2;
  color: var(--text-main);
}

.modal-text p {
  margin-bottom: 1.2rem;
}

/* ==========================================================================
   Section 4: 暖心树洞 (Warm Treehole / Confession Wall)
   ========================================================================== */
.treehole-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.treehole-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.treehole-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: all var(--transition-fast);
  box-shadow: var(--glass-shadow);
}

.treehole-card:hover {
  transform: translateY(-4px);
  border-color: #0d9488;
}

.treehole-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: #0d9488;
  background: rgba(13, 148, 136, 0.12);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.8rem;
  align-self: flex-start;
}

.treehole-content {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-main);
  margin-bottom: 1.2rem;
}

.treehole-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-subtle);
  border-top: 1px solid var(--card-border);
  padding-top: 0.8rem;
}

.like-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  transition: color var(--transition-fast);
}

.like-btn.liked {
  color: #db2777;
}

/* Post Note Modal Form */
.post-modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ==========================================================================
   Section 5: 唯美诗文 (Aesthetic Poetry & Reader)
   ========================================================================== */
.poetry-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.poetry-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
}

.poetry-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent-primary);
}

.poetry-author {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.8rem;
}

.poetry-lines {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 2.2;
  color: var(--text-main);
  white-space: pre-line;
}

/* Ambient Audio Synthesizer Drawer */
.ambient-drawer {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1500;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  width: 300px;
  box-shadow: var(--glass-shadow);
  display: none;
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ambient-drawer.active {
  display: block;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.sound-track {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.6rem;
}

.sound-title {
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Footer & ICP Link */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--glass-border);
  padding: 2.5rem 1.5rem;
  text-align: center;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-motto {
  font-family: var(--font-calligraphy);
  font-size: 1.8rem;
  background: linear-gradient(135deg, #f43f5e, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-info {
  font-size: 0.85rem;
  color: var(--text-subtle);
}

.beian-link {
  color: var(--text-subtle);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.beian-link:hover {
  color: var(--accent-primary);
  text-decoration: underline;
}

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

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

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .hero-banner {
    padding: 2rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .inspiration-section, .poetry-container, .about-pillars, .about-stats {
    grid-template-columns: 1fr;
  }
  .nav-menu {
    display: none;
  }
}