/* ==========================================================================
   Tuanbot Official Landing Page Stylesheet
   Domain: tuanbot.cn | ICP: 鄂ICP备2026015678号-1
   ========================================================================== */

:root {
  /* Brand Color Palette */
  --color-primary: #FF5E7E;
  --color-primary-hover: #FA3E63;
  --color-primary-light: #FFF0F3;
  --color-primary-glow: rgba(255, 94, 126, 0.35);

  --color-accent-gold: #FFB300;
  --color-accent-orange: #FF7A00;
  --color-accent-teal: #00C49F;
  --color-accent-blue: #3A86FF;
  --color-accent-purple: #8338EC;

  /* Neutral & Dark */
  --color-bg: #FAF9F6;
  --color-bg-alt: #F4F3EE;
  --color-surface: #FFFFFF;
  --color-surface-translucent: rgba(255, 255, 255, 0.85);
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-hover: rgba(0, 0, 0, 0.16);
  
  --color-text-main: #1D1E2C;
  --color-text-secondary: #585A6E;
  --color-text-muted: #8E90A6;
  --color-text-inverse: #FFFFFF;

  /* Steam Colors */
  --color-steam-bg: #171A21;
  --color-steam-hover: #222936;
  --color-steam-blue: #66C0F4;
  --color-steam-gradient: linear-gradient(135deg, #171A21 0%, #2A475E 100%);

  /* Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.09);
  --shadow-hover: 0 20px 48px rgba(255, 94, 126, 0.18);
  
  /* Layout */
  --container-max: 1200px;
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.font-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Ambient Background Lights */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.55;
  transition: opacity var(--transition-smooth);
}

.glow-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.25) 0%, rgba(255, 94, 126, 0.18) 100%);
  top: -100px;
  right: -50px;
}

.glow-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(90, 160, 255, 0.22) 0%, rgba(131, 56, 236, 0.12) 100%);
  top: 30%;
  left: -200px;
}

.glow-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(0, 196, 159, 0.2) 0%, rgba(255, 179, 0, 0.15) 100%);
  bottom: 10%;
  right: -100px;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(250, 249, 246, 0.82);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(255, 94, 126, 0.25);
  transition: transform var(--transition-fast);
}

.brand-logo:hover .brand-icon {
  transform: scale(1.05) rotate(-3deg);
}

.brand-text {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
}

.brand-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 94, 126, 0.2);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 4px;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
}

.mobile-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background-color: var(--color-text-main);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.icon-svg {
  width: 18px;
  height: 18px;
}

.btn-steam-nav {
  padding: 8px 16px;
  background: var(--color-steam-bg);
  color: var(--color-text-inverse);
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(23, 26, 33, 0.2);
}

.btn-steam-nav:hover {
  background: var(--color-steam-hover);
  transform: translateY(-1px);
}

.btn-primary-nav {
  padding: 8px 18px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 0.9rem;
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary-nav:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--color-primary-glow);
}

/* Hero Section */
.hero-section {
  padding: 60px 0 70px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  align-items: center;
  gap: 48px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 94, 126, 0.08);
  border: 1px solid rgba(255, 94, 126, 0.25);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.tag-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(255, 94, 126, 0.6);
  animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(255, 94, 126, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(255, 94, 126, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 94, 126, 0); }
}

.hero-title {
  font-size: 3.1rem;
  line-height: 1.22;
  font-weight: 850;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  margin-bottom: 20px;
}

.text-gradient {
  background: linear-gradient(120deg, #FF5E7E 0%, #FF8A00 50%, #9D4EDD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 34px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.btn-steam-hero {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 26px;
  background: var(--color-steam-gradient);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(23, 26, 33, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-normal);
}

.btn-steam-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(23, 26, 33, 0.4);
}

.btn-primary-hero {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 12px 26px;
  background: linear-gradient(135deg, #FF5E7E 0%, #FF8A00 100%);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px var(--color-primary-glow);
  transition: all var(--transition-normal);
}

.btn-primary-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 94, 126, 0.45);
}

.icon-hero {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.btn-text-col {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.btn-subtext {
  font-size: 0.72rem;
  opacity: 0.82;
  font-weight: 500;
  line-height: 1.2;
}

.btn-maintext {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.btn-badge {
  position: absolute;
  top: -8px;
  right: -6px;
  background: #FFD600;
  color: #171A21;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.hero-meta-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.meta-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.meta-dot.green { background: var(--color-accent-teal); }
.meta-dot.blue { background: var(--color-accent-blue); }
.meta-dot.orange { background: var(--color-accent-orange); }

.meta-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--color-border-hover);
}

/* Hero Visual Showcase */
.hero-visual {
  position: relative;
}

.hero-card-wrapper {
  position: relative;
  perspective: 1000px;
}

.hero-card-glass {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
  border: 4px solid var(--color-surface);
  background: var(--color-surface);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hero-card-glass:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.16);
}

.hero-card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-card-glass:hover .hero-card-img {
  transform: scale(1.03);
}

.hero-card-badge-top {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(19, 24, 44, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-card-chips {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-main);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

/* Banner Section */
.banner-section {
  padding: 20px 0 60px;
}

.banner-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 3px solid var(--color-surface);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.banner-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

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

/* Common Section Header */
.section-header {
  margin-bottom: 48px;
}

.section-header.text-center {
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Grid */
.features-section {
  padding: 70px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255, 94, 126, 0.3);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-box svg {
  width: 26px;
  height: 26px;
}

.feature-icon-box.bg-pink {
  background: #FFF0F3;
  color: #FF5E7E;
}

.feature-icon-box.bg-yellow {
  background: #FFF9DB;
  color: #F59F00;
}

.feature-icon-box.bg-green {
  background: #E6FCF5;
  color: #20C997;
}

.feature-icon-box.bg-blue {
  background: #E7F5FF;
  color: #339AF0;
}

.feature-title {
  font-size: 1.22rem;
  font-weight: 750;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.94rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
}

.feature-highlight {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(255, 94, 126, 0.06);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
}

/* Characters Section */
.characters-section {
  padding: 80px 0;
}

.characters-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.character-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 26px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 20px;
  transition: all var(--transition-normal);
}

.character-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 0, 0, 0.12);
}

.character-avatar-wrap {
  flex-shrink: 0;
}

.char-avatar-img {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  border: 2px solid #FFFFFF;
  transition: transform var(--transition-fast);
}

.character-card:hover .char-avatar-img {
  transform: scale(1.08) rotate(-2deg);
}

.char-circle {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}

.char-emoji {
  font-size: 2rem;
}

.char-circle.pink-bg { background: linear-gradient(135deg, #FFB1C1 0%, #FF5E7E 100%); }
.char-circle.purple-bg { background: linear-gradient(135deg, #D0BFFF 0%, #845EC2 100%); }
.char-circle.brown-bg { background: linear-gradient(135deg, #EAD7C5 0%, #A47551 100%); }
.char-circle.red-bg { background: linear-gradient(135deg, #FFB4A2 0%, #E63946 100%); }
.char-circle.green-bg { background: linear-gradient(135deg, #C7F9CC 0%, #57CC99 100%); }
.char-circle.gold-bg { background: linear-gradient(135deg, #FFE8A3 0%, #FFB703 100%); }

.character-info {
  display: flex;
  flex-direction: column;
}

.char-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.char-name {
  font-size: 1.15rem;
  font-weight: 750;
  color: var(--color-text-main);
}

.char-role {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.role-pink { background: #FFF0F3; color: #E64980; }
.role-purple { background: #F3F0FF; color: #7950F2; }
.role-brown { background: #FFF4E6; color: #D9480F; }
.role-red { background: #FFE3E3; color: #E03131; }
.role-green { background: #E6FCF5; color: #0CA678; }
.role-gold { background: #FFF9DB; color: #F59F00; }

.char-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.char-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.char-tag {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* Gallery Section */
.gallery-section {
  padding: 80px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #000000;
  cursor: pointer;
  border: 2px solid var(--color-surface);
  transition: all var(--transition-normal);
  aspect-ratio: 16 / 10;
}

.gallery-item.large {
  grid-column: span 2;
  aspect-ratio: 16 / 9;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, opacity var(--transition-fast);
}

.gallery-item:hover img {
  transform: scale(1.05);
  opacity: 0.92;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(19, 24, 44, 0.88) 0%, rgba(19, 24, 44, 0.2) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: #FFFFFF;
  opacity: 0.95;
  transition: opacity var(--transition-fast);
}

.gallery-badge {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(4px);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
}

.gallery-caption {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.gallery-subcaption {
  font-size: 0.85rem;
  opacity: 0.85;
}

/* Download Section */
.download-section {
  padding: 80px 0;
}

.download-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.download-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.download-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.download-card.steam-card {
  border: 2px solid #2A475E;
  background: linear-gradient(180deg, #FFFFFF 0%, #F5F8FA 100%);
}

.download-card-badge {
  position: absolute;
  top: -12px;
  right: 28px;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--color-steam-blue);
  color: #171A21;
  box-shadow: 0 4px 10px rgba(102, 192, 244, 0.4);
}

.download-card-badge.badge-blue {
  background: var(--color-accent-blue);
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(58, 134, 255, 0.35);
}

.download-card-badge.badge-purple {
  background: var(--color-accent-purple);
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(131, 56, 236, 0.35);
}

.download-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.platform-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.platform-icon-wrap svg {
  width: 28px;
  height: 28px;
}

.steam-icon-bg {
  background: var(--color-steam-bg);
  color: #FFFFFF;
}

.win-icon-bg {
  background: #0078D4;
  color: #FFFFFF;
}

.mac-icon-bg {
  background: #1D1E2C;
  color: #FFFFFF;
}

.platform-title {
  font-size: 1.25rem;
  font-weight: 750;
  color: var(--color-text-main);
}

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

/* Mac Arch Selector */
.mac-arch-selector {
  margin-bottom: 18px;
}

.arch-selector-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.arch-tabs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.arch-tab {
  padding: 7px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  text-align: left;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.arch-tab:hover {
  background: #EAE8E3;
}

.arch-tab.active {
  background: #F3F0FF;
  color: var(--color-accent-purple);
  border-color: rgba(131, 56, 236, 0.3);
}

/* Package Info Box */
.package-info-box {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 20px;
  border: 1px solid var(--color-border);
}

.package-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  padding: 4px 0;
}

.package-row .lbl {
  color: var(--color-text-muted);
}

.package-row .val {
  color: var(--color-text-main);
  font-weight: 600;
  text-align: right;
  word-break: break-all;
}

/* Download Feature List */
.download-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.download-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.download-feature-list li svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-teal);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Download Action Wrap */
.download-action-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.btn-steam-big {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  background: var(--color-steam-gradient);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 6px 18px rgba(23, 26, 33, 0.25);
  transition: all var(--transition-normal);
}

.btn-steam-big svg {
  width: 22px;
  height: 22px;
}

.btn-steam-big:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(23, 26, 33, 0.35);
}

.btn-ghost-steam {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.btn-ghost-steam:hover {
  background: var(--color-bg-alt);
  color: var(--color-text-main);
}

.btn-download-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.96rem;
  box-shadow: 0 6px 16px var(--color-primary-glow);
  transition: all var(--transition-normal);
}

.btn-download-primary svg {
  width: 20px;
  height: 20px;
}

.btn-download-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px var(--color-primary-glow);
}

.btn-copy-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px;
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.btn-copy-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* FAQ Section */
.faq-section {
  padding: 80px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.faq-container {
  max-width: 820px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(255, 94, 126, 0.4);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition-normal);
}

.faq-item[open] .faq-arrow {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 12, 20, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-close {
  position: absolute;
  top: -46px;
  right: 0;
  font-size: 2.4rem;
  color: #FFFFFF;
  line-height: 1;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.lightbox-close:hover {
  opacity: 1;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.15);
}

.lightbox-info {
  margin-top: 14px;
  text-align: center;
}

.lightbox-title {
  color: #FFFFFF;
  font-size: 1.15rem;
  font-weight: 600;
}

/* Toast Notification */
.toast-notification {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 1050;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #171A21;
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  font-size: 0.92rem;
  font-weight: 600;
  transform: translateY(100px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-smooth);
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent-teal);
}

/* Footer Section */
.site-footer {
  background: #13182C;
  color: #A3A8C3;
  padding: 60px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.footer-brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: #FFFFFF;
}

.footer-desc {
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 420px;
  margin-bottom: 18px;
}

.footer-domain {
  font-size: 0.9rem;
}

.domain-label {
  color: #6E7494;
}

.domain-link {
  color: #FF5E7E;
  font-weight: 600;
}

.domain-link:hover {
  text-decoration: underline;
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: #8C92B2;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  font-size: 0.85rem;
  color: #6E7494;
}

.copyright-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.separator {
  opacity: 0.4;
}

.beian-row {
  margin-top: 4px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #A3A8C3;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
}

.beian-link:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

.beian-badge {
  width: 15px;
  height: 17px;
  display: block;
}

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

@media (max-width: 1080px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .download-cards-grid {
    grid-template-columns: 1fr;
    max-width: 580px;
    margin: 0 auto;
  }
}

@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .gallery-item.large {
    grid-column: span 2;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 64px;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(250, 249, 246, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 24px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    gap: 16px;
  }

  .mobile-toggle {
    display: flex;
  }

  .btn-steam-nav {
    display: none;
  }

  .hero-title {
    font-size: 2.1rem;
  }

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

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

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

  .gallery-item.large {
    grid-column: span 1;
  }
}