/* ============================================================
   Rural Countryside Healing Theme
   痴情哥哥与病弱妹妹的乡间生活
   Wildflower meadow + gentle sunlight + vintage farmhouse
   ============================================================ */

:root {
  --bg: #f0f5fa;
  --bg-alt: #faf7f2;
  --bg-header: rgba(240, 245, 250, 0.95);
  --accent: #e8a840;
  --accent-hover: #d49530;
  --accent-light: #fef6e8;
  --meadow: #7a9a5c;
  --meadow-light: #e8f0e0;
  --lavender: #b8a0c8;
  --lavender-light: #f4eff8;
  --sky: #a8c8e8;
  --sky-light: #e8f0f8;
  --farmhouse: #faf7f2;
  --text: #4a3f35;
  --text-light: #7a7065;
  --text-muted: #a09888;
  --border: #e0d8cc;
  --border-light: #efe8dc;
  --card-bg: #ffffff;
  --card-shadow: 0 2px 12px rgba(120, 100, 70, 0.08);
  --card-shadow-hover: 0 4px 20px rgba(120, 100, 70, 0.14);
  --radius: 12px;
  --radius-sm: 8px;
  --font-heading: 'Noto Serif SC', 'STSong', 'Songti SC', 'SimSun', 'KaiTi', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(184, 160, 200, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(168, 200, 232, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 80%, rgba(232, 168, 64, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 10% 70%, rgba(122, 154, 92, 0.04) 0%, transparent 60%);
}

/* ---- Header ---- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 0 2rem;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--meadow), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

nav { display: flex; align-items: center; gap: 0.3rem; }

nav a {
  text-decoration: none;
  color: var(--text-light);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: color 0.2s, background 0.2s;
}

nav a:hover, nav a.active { color: var(--accent); background: var(--accent-light); }

.nav-cta {
  background: linear-gradient(135deg, var(--accent), #d49530) !important;
  color: #fff !important;
  font-weight: 600;
  padding: 0.45rem 1.1rem !important;
  border-radius: 20px !important;
  box-shadow: 0 2px 8px rgba(232, 168, 64, 0.3);
  transition: transform 0.2s, box-shadow 0.2s !important;
}

.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(232, 168, 64, 0.4); }

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text);
  padding: 0.4rem;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 2rem 4rem;
  text-align: center;
  background: linear-gradient(180deg, var(--sky-light) 0%, var(--bg) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 50% 60% at 50% 30%, rgba(232, 168, 64, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 80% 50%, rgba(184, 160, 200, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 50%, rgba(122, 154, 92, 0.06) 0%, transparent 60%);
}

.hero-inner { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--meadow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 1.8rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.hero-tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--border-light);
  color: var(--text-light);
}

.btn-hero {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--meadow));
  color: #fff;
  text-decoration: none;
  padding: 0.75rem 2.5rem;
  border-radius: 28px;
  font-size: 1.05rem;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(232, 168, 64, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-hero:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(232, 168, 64, 0.45); }

/* ---- Page Hero (sub-pages) ---- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, var(--sky-light) 0%, var(--bg) 100%);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 40% 50% at 50% 40%, rgba(232, 168, 64, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 70% 50%, rgba(184, 160, 200, 0.06) 0%, transparent 60%);
}

.page-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  position: relative;
  z-index: 1;
}

.page-hero p {
  color: var(--text-light);
  font-size: 1rem;
  max-width: 600px;
  margin: 0.5rem auto 0;
  position: relative;
  z-index: 1;
}

/* ---- Sections ---- */
section { padding: 3.5rem 2rem; }

.section-inner { max-width: 1100px; margin: 0 auto; }

.section-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

.section-alt { background: var(--farmhouse); }

/* ---- Meadow Divider ---- */
.meadow-divider {
  text-align: center;
  padding: 0.5rem 0;
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: 0.5rem;
}

.meadow-divider::before,
.meadow-divider::after {
  content: '';
  display: inline-block;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  vertical-align: middle;
  margin: 0 1rem;
}

/* ---- Info Cards ---- */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.info-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
  border-left: 3px solid var(--accent);
  transition: box-shadow 0.2s, transform 0.2s;
}

.info-card:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }

.info-card-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}

.info-card-value { font-size: 1rem; color: var(--text); font-weight: 600; }

/* ---- Feature Cards ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--card-shadow);
  border-left: 3px solid var(--meadow);
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }

.feature-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.feature-card-icon.green { background: var(--meadow-light); }
.feature-card-icon.gold { background: var(--accent-light); }
.feature-card-icon.lavender { background: var(--lavender-light); }
.feature-card-icon.sky { background: var(--sky-light); }

.feature-card h3 { font-family: var(--font-heading); font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--text); }
.feature-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }

/* ---- Story Blocks ---- */
.story-block {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--accent);
}

.story-block h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.story-block p { color: var(--text-light); line-height: 1.8; }

.story-chapter {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

/* ---- Character Cards ---- */
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.char-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.2s, transform 0.2s;
}

.char-card:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }

.char-card-header {
  background: linear-gradient(135deg, var(--sky), var(--lavender));
  padding: 1.5rem;
  text-align: center;
}

.char-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 0.8rem;
  background: linear-gradient(135deg, var(--accent), var(--meadow));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 3px solid #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
}

.char-card-header h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.char-role {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.85);
  margin-top: 0.2rem;
}

.char-card-body { padding: 1.2rem 1.5rem; }

.char-card-body p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }

.char-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.8rem;
}

.char-trait {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 14px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--accent-light);
  color: var(--accent);
}

.char-trait.green { background: var(--meadow-light); color: var(--meadow); }
.char-trait.lavender { background: var(--lavender-light); color: var(--lavender); }

/* ---- Guide Steps ---- */
.guide-step {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #d49530);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(232, 168, 64, 0.25);
}

.step-content { flex: 1; }

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}

.step-content p { color: var(--text-light); line-height: 1.7; }

/* ---- FAQ Accordion ---- */
.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  margin-bottom: 0.8rem;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.2rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-body);
}

.faq-toggle {
  font-size: 1.3rem;
  color: var(--accent);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.open .faq-toggle { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer { max-height: 500px; }

.faq-answer-inner {
  padding: 0 1.5rem 1.2rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---- Gallery ---- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.gallery-grid img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--card-shadow);
}

.gallery-grid img:hover { transform: scale(1.03); box-shadow: var(--card-shadow-hover); }

/* ---- CTA Banner ---- */
.cta-banner {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 3.5rem 2rem;
  background: linear-gradient(135deg, var(--sky-light), var(--lavender-light), var(--accent-light));
  border-radius: var(--radius);
  margin: 0 2rem 3rem;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 40% 50% at 30% 50%, rgba(232, 168, 64, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 70% 40%, rgba(122, 154, 92, 0.08) 0%, transparent 60%);
}

.cta-banner-inner { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; }

.cta-banner h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  margin-bottom: 0.8rem;
  color: var(--text);
}

.cta-banner p { color: var(--text-light); margin-bottom: 1.5rem; }

.cta-btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--meadow));
  color: #fff;
  text-decoration: none;
  padding: 0.7rem 2.2rem;
  border-radius: 24px;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(232, 168, 64, 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(232, 168, 64, 0.4); }

/* ---- Tags ---- */
.tag {
  display: inline-block;
  padding: 0.25rem 0.8rem;
  border-radius: 14px;
  font-size: 0.78rem;
  font-weight: 500;
}

.tag-gold { background: var(--accent-light); color: var(--accent); }
.tag-green { background: var(--meadow-light); color: var(--meadow); }
.tag-lavender { background: var(--lavender-light); color: var(--lavender); }
.tag-sky { background: var(--sky-light); color: #6a9ab8; }

/* ---- Stats Row ---- */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  text-align: center;
}

.stat-item { min-width: 100px; }

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* ---- Download Card ---- */
.download-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  border: 2px solid var(--accent);
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.download-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.download-card .version {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* ---- Info Table ---- */

.table-section-header { text-align: center !important; }

.table-section-header.meadow-header { background: var(--meadow-light) !important; color: var(--meadow) !important; }

.table-section-header.accent-header { background: var(--accent-light) !important; color: var(--accent) !important; }
.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.info-table th, .info-table td {
  padding: 0.9rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.info-table th {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  width: 30%;
}

.info-table td { color: var(--text-light); font-size: 0.92rem; }

/* ---- Breadcrumbs ---- */
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 1rem 2rem 0;
  max-width: 1100px;
  margin: 0 auto;
}

.breadcrumbs a { color: var(--accent); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }

/* ---- Lightbox ---- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.lightbox.active { display: flex; }

.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 1.8rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.lightbox-close:hover { background: rgba(255,255,255,0.3); }

/* ---- Tip Box ---- */
.tip-box {
  background: var(--meadow-light);
  border-left: 4px solid var(--meadow);
  padding: 1.2rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
  color: var(--text);
  font-size: 0.92rem;
}

.tip-box strong { color: var(--meadow); }

/* ---- Blockquote ---- */
blockquote {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 1.2rem 1.5rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
  color: var(--text-light);
  font-style: italic;
}

/* ---- Footer ---- */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-light);
  background: var(--farmhouse);
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.pb-0 { padding-bottom: 0; }
.max-w-800 { max-width: 800px; margin-left: auto; margin-right: auto; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .menu-toggle { display: block; }

  nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-header);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  }

  nav.active { display: flex; }

  nav a { width: 100%; padding: 0.7rem 1rem; }

  .hero h1 { font-size: 2rem; }
  .page-hero h1 { font-size: 1.7rem; }
  .section-title { font-size: 1.5rem; }

  .stats-row { gap: 1.2rem; }
  .stat-value { font-size: 1.5rem; }

  .cta-banner { margin: 0 1rem 2rem; padding: 2.5rem 1.5rem; }
}