/* ========================================
   徐州文旅推介 — 样式表 v2
   全面升级视觉品质 + 详情页样式
   ======================================== */

:root {
  --color-primary: #A62626;
  --color-primary-dark: #8B1E1E;
  --color-primary-light: #C43A3A;
  --color-gold: #C9A96E;
  --color-gold-light: #D4BC8A;
  --color-bg: #F5F0EB;
  --color-bg-alt: #EDE7E0;
  --color-dark: #1C1C28;
  --color-dark-soft: #2A2A3A;
  --color-jade: #5B8C8D;
  --color-jade-light: #7BA8A9;
  --color-text: #333340;
  --color-text-light: #6B6B7B;
  --color-white: #FFFFFF;
  --color-border: #D8D0C8;

  --font-serif: 'Noto Serif SC', 'Songti SC', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', sans-serif;

  --shadow-sm: 0 2px 8px rgba(28, 28, 40, 0.06);
  --shadow-md: 0 4px 20px rgba(28, 28, 40, 0.08);
  --shadow-lg: 0 8px 40px rgba(28, 28, 40, 0.12);
  --shadow-card-hover: 0 12px 48px rgba(166, 38, 38, 0.12);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --navbar-height: 72px;
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* --- Navbar --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--navbar-height);
  background: rgba(28, 28, 40, 0);
  backdrop-filter: blur(0px);
  transition: background var(--transition-base), backdrop-filter var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(28, 28, 40, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--color-white);
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600;
  letter-spacing: 0.05em; transition: opacity var(--transition-base);
}
.nav-logo:hover { opacity: 0.85; }
.logo-icon { color: var(--color-gold); font-size: 1.1rem; }

.nav-links { display: flex; gap: 36px; }
.nav-links a {
  color: rgba(255,255,255,0.8); font-size: 0.95rem; font-weight: 400;
  letter-spacing: 0.04em; position: relative; transition: color var(--transition-base);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
  background: var(--color-gold); transition: width var(--transition-base);
}
.nav-links a:hover { color: var(--color-white); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: #fff; }
.nav-links a.active::after { width: 100%; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--color-white);
  border-radius: 2px; transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Hero --- */
.hero {
  position: relative; height: 100vh; min-height: 600px;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.hero-bg {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
}
.hero-overlay {
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(28,28,40,0.5) 0%, rgba(28,28,40,0.3) 40%, rgba(28,28,40,0.65) 100%);
  z-index: 1;
}
.hero-content { position: relative; z-index: 2; text-align: center; color: var(--color-white); padding: 0 24px; }

.hero-subtitle {
  font-family: var(--font-sans); font-size: 1rem; font-weight: 300; letter-spacing: 0.3em;
  color: var(--color-gold-light);
  opacity: 0; transform: translateY(20px); animation: fadeSlideUp 1s ease forwards 0.3s;
}
.hero-title {
  font-family: var(--font-serif); font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 700;
  letter-spacing: 0.15em; margin: 16px 0 20px;
  opacity: 0; transform: translateY(20px); animation: fadeSlideUp 1s ease forwards 0.6s;
  text-shadow: 0 2px 40px rgba(0,0,0,0.3);
}
.hero-desc {
  font-family: var(--font-sans); font-size: 1.1rem; font-weight: 300; letter-spacing: 0.1em;
  color: rgba(255,255,255,0.85);
  opacity: 0; transform: translateY(20px); animation: fadeSlideUp 1s ease forwards 0.9s;
}
.hero-btn {
  display: inline-block; margin-top: 36px; padding: 14px 48px;
  font-family: var(--font-sans); font-size: 0.95rem; font-weight: 500; letter-spacing: 0.15em;
  color: var(--color-white); background: var(--color-primary);
  border: 1px solid rgba(201,169,110,0.4); border-radius: var(--radius-sm);
  opacity: 0; transform: translateY(20px); animation: fadeSlideUp 1s ease forwards 1.2s;
  transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}
.hero-btn:hover {
  background: var(--color-primary-dark); transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(166,38,38,0.4);
}

.hero-scroll-hint {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.5); font-size: 0.75rem; letter-spacing: 0.2em;
}
.scroll-arrow {
  width: 16px; height: 16px; border-right: 2px solid rgba(255,255,255,0.4);
  border-bottom: 2px solid rgba(255,255,255,0.4); transform: rotate(45deg);
  animation: scrollBounce 2s ease infinite;
}

/* --- Section Common --- */
.section { padding: 100px 0; }
.section:nth-child(even) { background: var(--color-bg-alt); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block; font-family: var(--font-sans); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.3em; color: var(--color-gold); text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif); font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 700;
  color: var(--color-dark); letter-spacing: 0.08em;
}
.section-divider { display: flex; align-items: center; justify-content: center; gap: 12px; margin: 16px 0 20px; }
.divider-dot { width: 6px; height: 6px; background: var(--color-gold); border-radius: 50%; }
.divider-line { width: 60px; height: 1px; background: linear-gradient(90deg, transparent, var(--color-gold), transparent); }
.section-subtitle { font-family: var(--font-sans); font-size: 1rem; color: var(--color-text-light); letter-spacing: 0.1em; font-weight: 300; }

/* --- About --- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image {
  border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-lg); position: relative;
}
.about-image::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  border: 1px solid rgba(201,169,110,0.2); border-radius: var(--radius-md); pointer-events: none;
}
.about-image img { width: 100%; height: 400px; object-fit: cover; transition: transform var(--transition-slow); }
.about-image:hover img { transform: scale(1.03); }
.about-heading {
  font-family: var(--font-serif); font-size: 1.6rem; font-weight: 600; color: var(--color-dark);
  margin-bottom: 20px; letter-spacing: 0.05em;
}
.about-text p { margin-bottom: 16px; color: var(--color-text); line-height: 1.9; }
.about-stats { display: flex; gap: 40px; margin-top: 32px; padding-top: 28px; border-top: 1px solid var(--color-border); }
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-number { font-family: var(--font-serif); font-size: 1.8rem; font-weight: 700; color: var(--color-primary); line-height: 1.2; }
.stat-label { font-size: 0.85rem; color: var(--color-text-light); letter-spacing: 0.05em; }

/* About highlights */
.about-highlights {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px;
}
.highlight-item {
  background: var(--color-white); padding: 28px; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); box-shadow: var(--shadow-sm);
  display: flex; gap: 16px; align-items: flex-start;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.highlight-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.highlight-icon {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.highlight-info h4 { font-family: var(--font-serif); font-size: 1rem; font-weight: 600; color: var(--color-dark); margin-bottom: 4px; }
.highlight-info p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.6; }

/* --- Card Grid --- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.card {
  background: var(--color-white); border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid rgba(216,208,200,0.5);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.card-image { position: relative; height: 220px; overflow: hidden; }
.card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.card:hover .card-image img { transform: scale(1.06); }
.card-badge {
  position: absolute; top: 14px; right: 14px; padding: 4px 14px;
  font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em;
  color: var(--color-white); background: var(--color-primary); border-radius: 20px;
}
.card-body { padding: 24px; }
.card-title {
  font-family: var(--font-serif); font-size: 1.25rem; font-weight: 600; color: var(--color-dark);
  margin-bottom: 12px; letter-spacing: 0.05em;
}
.card-text { font-size: 0.9rem; line-height: 1.85; color: var(--color-text-light); margin-bottom: 18px; }
.card-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.meta-tag {
  padding: 4px 12px; font-size: 0.75rem; font-weight: 400; letter-spacing: 0.04em;
  color: var(--color-jade); background: rgba(91,140,141,0.08); border: 1px solid rgba(91,140,141,0.15);
  border-radius: 20px;
}
.card-action {
  font-size: 0.85rem; font-weight: 500; color: var(--color-primary); letter-spacing: 0.04em;
  transition: letter-spacing var(--transition-base), color var(--transition-base);
}
.card:hover .card-action { letter-spacing: 0.12em; color: var(--color-primary-dark); }

/* Stagger */
.card-grid .card:nth-child(2) { transition-delay: 0.15s; }
.card-grid .card:nth-child(3) { transition-delay: 0.3s; }

/* ========================================
   Detail Overlay — 详情页覆盖层
   ======================================== */
.detail-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  z-index: 2000;
  background: rgba(28, 28, 40, 0.6);
  backdrop-filter: blur(8px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  display: flex; justify-content: center; align-items: flex-start;
  padding: 24px;
  overflow-y: auto;
}

.detail-overlay.active {
  opacity: 1; visibility: visible;
}

.detail-panel {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  max-width: 800px; width: 100%;
  box-shadow: 0 24px 80px rgba(28, 28, 40, 0.3);
  position: relative;
  transform: translateY(30px);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.detail-overlay.active .detail-panel {
  transform: translateY(0);
}

.detail-close {
  position: absolute; top: 16px; right: 16px; z-index: 10;
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(28, 28, 40, 0.6); color: var(--color-white);
  border: none; cursor: pointer; font-size: 1.4rem;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-base), transform var(--transition-base);
  backdrop-filter: blur(4px);
}
.detail-close:hover { background: rgba(166, 38, 38, 0.8); transform: scale(1.1); }

/* Detail hero */
.detail-hero { position: relative; height: 300px; overflow: hidden; }
.detail-hero img { width: 100%; height: 100%; object-fit: cover; }
.detail-hero-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 40px 32px 24px;
  background: linear-gradient(transparent, rgba(28,28,40,0.85));
  color: var(--color-white);
}
.detail-badge {
  display: inline-block; padding: 4px 14px; font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.06em; background: var(--color-primary); border-radius: 20px;
  margin-bottom: 10px;
}
.detail-hero-overlay h2 {
  font-family: var(--font-serif); font-size: 2rem; font-weight: 700;
  letter-spacing: 0.08em; margin-bottom: 4px;
}
.detail-hero-overlay p { font-size: 0.9rem; color: rgba(255,255,255,0.7); letter-spacing: 0.05em; }

/* Detail body */
.detail-body { padding: 32px; }

.detail-intro { margin-bottom: 32px; }
.detail-intro h3 {
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 600;
  color: var(--color-dark); margin-bottom: 16px; letter-spacing: 0.05em;
  padding-bottom: 10px; border-bottom: 2px solid var(--color-gold);
  display: inline-block;
}
.detail-intro p { margin-bottom: 14px; line-height: 1.9; color: var(--color-text); }

/* Info grid */
.detail-info-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px;
}
.info-card {
  background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px 16px; text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.info-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.info-icon { font-size: 1.4rem; margin-bottom: 8px; }
.info-card h4 { font-size: 0.85rem; font-weight: 600; color: var(--color-dark); margin-bottom: 6px; letter-spacing: 0.03em; }
.info-card p { font-size: 0.78rem; color: var(--color-text-light); line-height: 1.5; }

/* Route timeline */
.detail-section { margin-bottom: 32px; }
.detail-section h3 {
  font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600;
  color: var(--color-dark); margin-bottom: 20px; letter-spacing: 0.05em;
  padding-bottom: 10px; border-bottom: 2px solid var(--color-gold);
  display: inline-block;
}

.route-timeline { position: relative; padding-left: 32px; }
.route-timeline::before {
  content: ''; position: absolute; left: 11px; top: 8px; bottom: 8px;
  width: 2px; background: linear-gradient(var(--color-gold), var(--color-gold-light));
}
.route-step { position: relative; margin-bottom: 20px; }
.route-step:last-child { margin-bottom: 0; }
.step-number {
  position: absolute; left: -32px; top: 2px;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  font-size: 0.75rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step-content h5 {
  font-family: var(--font-serif); font-size: 1rem; font-weight: 600;
  color: var(--color-dark); margin-bottom: 4px;
}
.step-content p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.7; }

/* Recommend cards */
.recommend-cards { display: flex; flex-direction: column; gap: 14px; }
.recommend-item {
  background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 18px 20px;
  display: flex; flex-direction: column; gap: 6px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.recommend-item:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }
.recommend-tag {
  display: inline-block; align-self: flex-start;
  padding: 2px 10px; font-size: 0.7rem; font-weight: 500;
  background: rgba(201,169,110,0.15); color: var(--color-gold);
  border-radius: 10px; letter-spacing: 0.04em;
}
.recommend-item h5 { font-family: var(--font-serif); font-size: 1rem; font-weight: 600; color: var(--color-dark); }
.recommend-item p { font-size: 0.85rem; color: var(--color-text-light); line-height: 1.6; }

/* Pair grid */
.pair-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pair-item {
  background: var(--color-white); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 16px; text-align: center;
}
.pair-name {
  display: block; font-family: var(--font-serif); font-size: 1.05rem; font-weight: 600;
  color: var(--color-primary); margin-bottom: 4px;
}
.pair-desc { font-size: 0.8rem; color: var(--color-text-light); line-height: 1.5; }

/* Detail tips */
.detail-tips { margin-bottom: 16px; }
.detail-tips h3 {
  font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600;
  color: var(--color-dark); margin-bottom: 16px; letter-spacing: 0.05em;
  padding-bottom: 10px; border-bottom: 2px solid var(--color-gold);
  display: inline-block;
}
.detail-tips ul { padding-left: 0; }
.detail-tips li {
  position: relative; padding-left: 24px; margin-bottom: 10px;
  font-size: 0.88rem; color: var(--color-text-light); line-height: 1.7;
}
.detail-tips li::before {
  content: ''; position: absolute; left: 0; top: 10px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-gold);
}

/* --- Footer --- */
.footer { background: var(--color-dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600;
  color: var(--color-white); letter-spacing: 0.05em; margin-bottom: 16px;
}
.footer-logo .logo-icon { color: var(--color-gold); }
.footer-desc { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.5); }
.footer-links-group h4 {
  font-family: var(--font-sans); font-size: 0.9rem; font-weight: 500;
  color: var(--color-white); letter-spacing: 0.06em; margin-bottom: 18px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 0.85rem; color: rgba(255,255,255,0.5);
  transition: color var(--transition-base); letter-spacing: 0.03em;
}
.footer-links a:hover { color: var(--color-gold); }
.footer-contact li { font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.footer-bottom { margin-top: 48px; padding: 24px 0; text-align: center; }
.footer-divider-ornament {
  width: 60px; height: 1px; margin: 0 auto 20px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.35); letter-spacing: 0.05em; }

/* --- Back to Top --- */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px;
  width: 44px; height: 44px; background: var(--color-primary); color: var(--color-white);
  border: 1px solid rgba(201,169,110,0.3); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(16px); z-index: 999; box-shadow: var(--shadow-md);
  transition: opacity var(--transition-base), visibility var(--transition-base),
    transform var(--transition-base), background var(--transition-base);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary-dark); transform: translateY(-3px); }

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4,0,0.2,1), transform 0.8s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { transform: translateX(-40px); }
.reveal-left.visible { transform: translateX(0); }
.reveal-right { transform: translateX(40px); }
.reveal-right.visible { transform: translateX(0); }

/* --- Keyframes --- */
@keyframes fadeSlideUp { to { opacity: 1; transform: translateY(0); } }
@keyframes scrollBounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(6px); }
  60% { transform: rotate(45deg) translateY(3px); }
}

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

@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-image img { height: 320px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-highlights { grid-template-columns: 1fr; }
  .detail-info-grid { grid-template-columns: repeat(2, 1fr); }
  .pair-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --navbar-height: 60px; }
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: var(--navbar-height); left: 0; right: 0;
    background: rgba(28,28,40,0.98); backdrop-filter: blur(12px);
    flex-direction: column; align-items: center; gap: 0; padding: 20px 0;
    transform: translateY(-100%); opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
    pointer-events: none;
  }
  .nav-links.active { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a { display: block; padding: 14px 0; font-size: 1rem; }
  .nav-links a::after { display: none; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }
  .card-grid { grid-template-columns: 1fr; gap: 24px; }
  .card-image { height: 200px; }
  .about-stats { gap: 24px; flex-wrap: wrap; }
  .stat-number { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer { padding: 48px 0 0; }
  .detail-info-grid { grid-template-columns: repeat(2, 1fr); }
  .pair-grid { grid-template-columns: 1fr; }
  .detail-hero { height: 220px; }
  .detail-hero-overlay h2 { font-size: 1.5rem; }
  .detail-body { padding: 24px 20px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-scroll-hint { display: none; }
  .about-stats { gap: 20px; }
  .stat-item { min-width: 80px; }
  .card-body { padding: 18px; }
  .detail-overlay { padding: 8px; }
  .detail-panel { border-radius: var(--radius-md); }
  .detail-info-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .info-card { padding: 14px 10px; }
  .detail-hero { height: 180px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}