/* ============================================================
   万能垃圾处理器 (Universal Disposer) — Waste Disposal Industrial Theme
   Design: Recycling greens + metal-press grays + trash-compactor
   motifs on a light industrial background.
   ============================================================ */

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

/* ---------- CSS Variables ---------- */
:root {
  --bg: #f5f3ee;
  --bg-card: #ffffff;
  --bg-muted: #edebe4;
  --text: #2c2c2c;
  --text-soft: #5a5a5a;
  --text-muted: #8a8a8a;

  --header-bg: #1a1f1c;
  --header-border: #4a7c59;

  --accent-green: #4a7c59;
  --accent-green-bright: #7cb342;
  --accent-green-light: #e8f0e9;
  --accent-gray: #6b6b6b;
  --accent-dark: #3a3a3a;
  --accent-steel: #2c3e50;

  --warning-red: #c0392b;
  --caution-orange: #e67e22;
  --danger-red: #c0392b;
  --pink-fierce: #c0392b;
  --accent-gold: #d4a017;
  --uniform-navy: #2c3e50;

  --card-border: #e0ddd5;
  --card-shadow: 0 2px 8px rgba(0,0,0,0.06);

  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-serif: 'Noto Serif SC', 'SimSun', serif;

  --radius: 8px;
  --radius-sm: 4px;
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--accent-green-bright);
}

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

/* ---------- Screen Reader Only ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */
header {
  background: var(--header-bg);
  border-bottom: 3px solid var(--header-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: #e8e4d8;
  letter-spacing: 0.02em;
}

.header-logo a {
  color: inherit;
  text-decoration: none;
}

.header-logo a:hover {
  color: var(--accent-green-bright);
}

/* ---------- Navigation ---------- */
nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  align-items: center;
}

nav a {
  color: #c0c0b8;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}

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

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-green-bright);
  border-radius: 1px;
}

/* ---------- Header CTA Button ---------- */
.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--accent-green-bright), var(--accent-green));
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 8px 20px;
  border-radius: 20px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(74,124,89,0.35);
  white-space: nowrap;
}

.btn-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(74,124,89,0.5);
  color: #fff;
}

.btn-cta::before {
  content: '⬇';
  font-size: 0.85rem;
}

/* ---------- Hero Section ---------- */
.hero {
  padding: 60px 24px 80px;
  background: linear-gradient(180deg, #2a2e29 0%, #3d433a 40%, #4d5347 70%, var(--bg) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 20%, rgba(74,124,89,0.12) 0%, transparent 50%),
    radial-gradient(circle at 70% 60%, rgba(192,57,43,0.08) 0%, transparent 40%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--caution-orange) 0px, var(--caution-orange) 20px, var(--accent-dark) 20px, var(--accent-dark) 28px);
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-img {
  max-width: 380px;
  margin: 0 auto 32px;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  border: 3px solid var(--accent-gray);
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 700;
  color: #e8e4d8;
  line-height: 1.3;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: #b8b4a8;
  margin-bottom: 4px;
}

/* ---------- Sub-Page Hero ---------- */
.hero-subpage {
  padding: 40px 24px 48px;
}

.hero-subpage-title {
  font-size: 2rem;
  font-weight: 700;
}

/* ---------- Content Section ---------- */
.content-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.content-section h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.content-section h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin: 28px 0 10px;
}

.content-section p {
  margin-bottom: 16px;
  color: var(--text-soft);
}

/* ---------- Feature Cards Grid ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border-left: 4px solid var(--accent-green);
  box-shadow: var(--card-shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin: 0 0 8px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin: 0;
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

/* ---------- Screenshot Gallery ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.gallery-grid img {
  border-radius: var(--radius);
  border: 2px solid var(--card-border);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.gallery-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* ---------- CTA Banner (index only) ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--accent-dark), var(--header-bg));
  text-align: center;
  padding: 48px 24px;
  margin: 40px 0 0;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(74,124,89,0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(212,160,23,0.15) 0%, transparent 40%);
  pointer-events: none;
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: #e8e4d8;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: #b8b4a8;
  font-size: 1rem;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.btn-cta-large {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-green-bright), var(--accent-green));
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  padding: 14px 36px;
  border-radius: 28px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(74,124,89,0.4);
  position: relative;
  z-index: 1;
}

.btn-cta-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(74,124,89,0.55);
  color: #fff;
}

.btn-cta-large::before {
  content: '⬇';
  font-size: 1rem;
}

/* ---------- Review Cards ---------- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin: 28px 0;
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
}

.review-card .review-text {
  font-size: 0.95rem;
  color: var(--text-soft);
  font-style: italic;
  margin-bottom: 12px;
}

.review-card .review-author {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.review-card .review-stars {
  color: var(--accent-gold);
  font-size: 1rem;
  margin-bottom: 8px;
}

/* ---------- Guide Steps ---------- */
.guide-step {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  border-left: 4px solid var(--caution-orange);
  box-shadow: var(--card-shadow);
}

.guide-step h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin: 0 0 8px;
}

.guide-step p,
.guide-step li {
  font-size: 0.95rem;
  color: var(--text-soft);
}

.tip-box {
  background: var(--accent-green-light);
  border-left: 4px solid var(--accent-green);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin: 16px 0;
}

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

/* ---------- Guide Intro & Route ---------- */
.guide-intro {
  font-size: 1.05rem;
  color: var(--text-soft);
  margin-bottom: 24px;
  line-height: 1.85;
}

.route-desc {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-bottom: 12px;
}

.route-heading {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin: 20px 0 8px;
}

/* ---------- Story Chapter ---------- */
.chapter-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-green);
  margin: 24px 0 8px;
}

.story-intro {
  font-size: 1.05rem;
  color: var(--text-soft);
  line-height: 1.85;
  margin-bottom: 24px;
}

/* ---------- Character Cards ---------- */
.characters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 28px 0;
}

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

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

.char-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-bottom: 3px solid var(--accent-green);
}

.char-card-body {
  padding: 20px;
}

.char-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin: 0 0 6px;
}

.char-card-body .char-role {
  font-size: 0.85rem;
  color: var(--accent-green);
  font-weight: 500;
  margin-bottom: 8px;
}

.char-card-body p {
  font-size: 0.9rem;
  color: var(--text-soft);
  margin: 0;
}

.char-traits {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.char-trait {
  background: var(--accent-green-light);
  color: var(--accent-green);
  font-size: 0.8rem;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

/* ---------- Section Subheading ---------- */
.section-subheading {
  text-align: center;
  margin: 40px 0 24px;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-dark);
}

/* ---------- FAQ Accordion ---------- */
.faq-list {
  margin: 28px 0;
}

.faq-item {
  border-bottom: 1px solid var(--card-border);
  padding: 16px 0;
}

.faq-question {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-green);
  transition: transform 0.3s;
}

.faq-item.open .faq-question::after {
  content: '−';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 800px;
  padding-top: 12px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-soft);
  margin-bottom: 8px;
}

/* ---------- Table ---------- */
.table-scroll {
  overflow-x: auto;
  margin: 20px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

thead {
  background: var(--accent-dark);
  color: #e8e4d8;
}

th {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: left;
}

td {
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--text-soft);
  border-bottom: 1px solid var(--card-border);
}

tr:last-child td {
  border-bottom: none;
}

.td-highlight {
  color: var(--pink-fierce);
  font-weight: 700;
}

/* ---------- Content List Classes ---------- */
.content-list {
  list-style: disc;
  padding-left: 20px;
}

.content-list-num {
  list-style: decimal;
  padding-left: 24px;
}

.content-li {
  margin-bottom: 5px;
  color: var(--text-soft);
}

.content-li-sm {
  margin-bottom: 4px;
  color: var(--text-soft);
}

.content-li-md {
  margin-bottom: 8px;
  color: var(--text-soft);
}

.content-li-lg {
  margin-bottom: 10px;
  color: var(--text-soft);
}

/* ---------- Colored Strong Tags ---------- */
.strong-pink { color: var(--pink-fierce); }
.strong-red { color: var(--danger-red); }
.strong-gold { color: var(--accent-gold); }
.strong-muted { color: var(--text-muted); }
.strong-navy { color: var(--uniform-navy); }
.strong-green { color: var(--accent-green); }

/* ---------- System Reqs H3 ---------- */
.sys-reqs-h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--uniform-navy);
  margin-top: 24px;
  margin-bottom: 12px;
}

.sys-reqs-h3:first-of-type {
  margin-top: 8px;
}

/* ---------- Game Info Cards (index) ---------- */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.info-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--card-shadow);
}

.info-card .info-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.info-card .info-value {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-dark);
}

/* ---------- Tag Pills ---------- */
.tag-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 16px 0;
}

.tag-pill {
  background: var(--accent-green-light);
  color: var(--accent-green);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 16px;
  border: 1px solid rgba(74,124,89,0.25);
}

/* ---------- Footer ---------- */
footer {
  background: var(--header-bg);
  text-align: center;
  padding: 24px;
  margin-top: 60px;
}

footer p {
  color: #8a8a80;
  font-size: 0.88rem;
}

/* ---------- Lightbox ---------- */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 999;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-overlay img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius);
  border: 2px solid var(--accent-gray);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
  }

  nav ul {
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
  }

  nav a {
    font-size: 0.85rem;
  }

  .btn-cta {
    font-size: 0.82rem;
    padding: 6px 14px;
  }

  .hero {
    padding: 48px 20px 60px;
  }

  .hero-tagline {
    font-size: 1.8rem;
  }

  .hero-img {
    max-width: 260px;
  }

  .content-section {
    padding: 36px 20px;
  }

  .content-section h2 {
    font-size: 1.6rem;
  }

  .features-grid,
  .characters-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-banner h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .header-logo {
    font-size: 1rem;
  }

  nav ul {
    gap: 10px;
  }

  .hero-tagline {
    font-size: 1.5rem;
  }

  .hero-subpage-title {
    font-size: 1.4rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
}