/* ============================================================
   喜玛拉雅宴会艺术中心 - Main Stylesheet
   Himalaya Banquet Art Center
   ============================================================

   Table of Contents:
   1. CSS Variables & Reset
   2. Typography
   3. Header & Navigation
   4. Footer
   5. Homepage: Banner Carousel
   6. Homepage: About/Intro Section
   7. Homepage: 3-Column Image Grid
   8. Homepage: Tab/Venue Section
   9. Homepage: Large Banner Section
   10. Sub-page Banners
   11. Sub-page Content Sections
   12. About Page
   13. Booking Page
   14. Responsive: Tablet (641-1200px)
   15. Responsive: Mobile (<640px)
   ============================================================ */

/* ==========================================================
   1. CSS VARIABLES & RESET
   ========================================================== */
:root {
  /* Primary colors */
  --color-primary: #5d767e;
  --color-accent-light: #b4d1ba;
  --color-accent-warm: #977869;
  --color-pink-light: #ffdfec;
  --color-pink: #ffb4d3;

  /* Text colors */
  --color-text-dark: #333333;
  --color-text-gray: #999999;
  --color-text-light: #cccccc;
  --color-text-white: #ffffff;

  /* Backgrounds */
  --color-bg-white: #ffffff;
  --color-bg-dark-overlay: rgba(23, 25, 29, 0.95);

  /* Header */
  --header-height: 90px;
  --header-height-mobile: 60px;

  /* Fonts */
  --font-primary: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
  --font-heading: Arial, 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', sans-serif;

  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg-white);
  overflow-x: hidden;
  min-width: 320px;
}

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

ul, ol {
  list-style: none;
}

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

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

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.clearfix::after {
  content: '';
  display: table;
  clear: both;
}

/* Placeholder images */
.img-placeholder {
  background-color: #e8e8e8;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 14px;
  position: relative;
  overflow: hidden;
}

.img-placeholder::before {
  content: attr(data-label);
  position: absolute;
  z-index: 1;
}

.img-placeholder::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% { left: 100%; }
}

/* ==========================================================
   2. TYPOGRAPHY
   ========================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: normal;
  line-height: 1.3;
}

/* ==========================================================
   3. HEADER & NAVIGATION
   ========================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-bg-white);
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  position: relative;
}

/* Logo */
.header-logo {
  flex-shrink: 0;
  z-index: 1001;
}

.header-logo a {
  display: block;
}

.header-logo img {
  width: 173px;
  height: 50px;
}

/* Desktop Navigation */
.main-nav {
  width: 65.5%;
  margin-left: auto;
}

.nav-list {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}

.nav-list li {
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: 8px 10px;
  font-size: 16px;
  font-weight: bold;
  color: var(--color-text-dark);
  border-radius: 3px;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-text-white);
  background-color: var(--color-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  z-index: 1001;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-dark);
  margin: 3px 0;
  transition: all var(--transition-fast);
  border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Overlay Menu */
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-dark-overlay);
  z-index: 999;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.mobile-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-nav-list {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  width: 80%;
}

.mobile-nav-list li {
  margin: 20px 0;
}

.mobile-nav-list a {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-text-white);
  padding: 10px 20px;
  display: block;
  transition: color var(--transition-fast);
}

.mobile-nav-list a:hover,
.mobile-nav-list a.active {
  color: var(--color-primary);
}

/* ==========================================================
   4. FOOTER
   ========================================================== */
.site-footer {
  position: relative;
  background-color: #1a1a2e;
  background-image: url('https://wds-service-1258344699.file.myqcloud.com/20/17121/jpg/1697715079371c4ca4238a0b923820dcc509a6f75849b.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-text-white);
  min-height: 479px;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.65);
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 15px 30px;
  display: flex;
  flex-wrap: wrap;
}

/* Footer Nav */
.footer-nav {
  width: 100%;
  border-bottom: 1px solid rgba(229, 229, 229, 0.2);
  padding-bottom: 25px;
  margin-bottom: 30px;
}

.footer-nav .nav-list {
  justify-content: flex-start;
  margin-left: 17%;
  gap: 20px;
}

.footer-nav .nav-list a {
  color: var(--color-text-white);
  font-size: 16px;
  font-weight: bold;
}

.footer-nav .nav-list a:hover {
  color: var(--color-primary);
}

/* Footer Left */
.footer-left {
  width: 11.9%;
  padding-right: 15px;
}

.footer-left .footer-title {
  font-size: 25px;
  font-weight: bold;
  color: var(--color-text-white);
  font-family: Helvetica, var(--font-primary);
  margin-bottom: 8px;
}

.footer-left .footer-subtitle {
  font-size: 12px;
  color: var(--color-text-white);
  margin-bottom: 12px;
}

.footer-left .footer-separator {
  width: 30px;
  height: 2px;
  background-color: var(--color-text-white);
}

/* Footer Middle */
.footer-middle {
  width: 30%;
  padding: 0 15px;
}

.footer-middle .footer-title {
  font-size: 26px;
  font-weight: bold;
  color: var(--color-text-white);
  margin-bottom: 8px;
}

.footer-middle .footer-subtitle {
  font-size: 12px;
  color: var(--color-text-white);
}

/* Footer Contact */
.footer-contact {
  width: 50%;
  padding: 0 15px;
}

.footer-contact .contact-item {
  font-size: 15px;
  color: var(--color-text-white);
  line-height: 60px;
  font-family: Helvetica, var(--font-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact .contact-item .contact-icon {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

/* Footer QR */
.footer-qr {
  width: 18.4%;
  text-align: center;
  padding-top: 20px;
}

.footer-qr img {
  width: 120px;
  height: 120px;
  margin: 0 auto 10px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 4px;
}

.footer-qr .qr-label {
  font-size: 14px;
  color: var(--color-text-white);
}

/* Footer Bottom */
.footer-bottom {
  position: relative;
  z-index: 1;
  width: 100%;
  text-align: center;
  padding: 15px 0;
  border-top: 1px solid rgba(229, 229, 229, 0.2);
  margin-top: 20px;
}

.footer-bottom .copyright {
  color: var(--color-text-light);
  font-size: 13px;
}

/* ==========================================================
   5. HOMEPAGE: BANNER CAROUSEL
   ========================================================== */
/* PC Banner */
.banner-carousel {
  position: relative;
  width: 100%;
  height: 729px;
  overflow: hidden;
  margin-top: var(--header-height);
}

.banner-carousel .carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease-in-out;
  will-change: transform;
}

.banner-carousel .carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
}

.banner-carousel .carousel-slide .img-placeholder {
  width: 100%;
  height: 100%;
  font-size: 24px;
}

/* Carousel Controls */
.carousel-controls {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 60px;
  color: #999;
  cursor: pointer;
  pointer-events: auto;
  user-select: none;
  transition: color var(--transition-fast);
  padding: 10px;
  line-height: 1;
}

.carousel-arrow:hover {
  color: var(--color-text-white);
}

.carousel-arrow.prev {
  left: 20px;
}

.carousel-arrow.next {
  right: 20px;
}

/* Dot Indicators */
.carousel-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  pointer-events: auto;
}

.carousel-dots .dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--color-text-white);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.carousel-dots .dot.active {
  background-color: var(--color-text-white);
}

/* Mobile Banner (hidden on desktop) */
.banner-mobile {
  display: none;
}

/* ==========================================================
   6. HOMEPAGE: ABOUT/INTRO SECTION
   ========================================================== */
.about-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 15px;
  height: 180px;
  display: flex;
  align-items: center;
}

.about-section .about-left {
  flex: 1;
  position: relative;
}

.about-section .about-left h2 {
  font-size: 66px;
  font-weight: normal;
  font-family: Arial, var(--font-primary);
  line-height: 60px;
  color: var(--color-text-dark);
  margin-bottom: 10px;
}

.about-section .about-left p {
  font-size: 14px;
  color: #666;
  max-width: 700px;
  line-height: 1.8;
}

.about-section .about-right {
  flex-shrink: 0;
  padding-left: 60px;
  position: relative;
}

.about-section .about-right .about-highlight {
  font-size: 35px;
  font-weight: bold;
  color: var(--color-text-dark);
  line-height: 1.4;
  padding-left: 25px;
  border-left: 4px solid var(--color-accent-light);
  margin-bottom: 15px;
}

.about-section .about-right .about-note {
  font-size: 12px;
  font-weight: bold;
  color: #666;
  text-align: right;
}

/* Decorative dots */
.about-dots {
  position: absolute;
  bottom: -20px;
  right: 0;
  display: flex;
  gap: 8px;
}

.about-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.about-dots .dot:nth-child(1) { background-color: var(--color-accent-light); }
.about-dots .dot:nth-child(2) { background-color: var(--color-pink-light); }
.about-dots .dot:nth-child(3) { background-color: var(--color-pink); }

/* ==========================================================
   7. HOMEPAGE: 3-COLUMN IMAGE GRID
   ========================================================== */
.image-grid-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 15px;
  min-height: 344px;
}

.image-grid {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.grid-item {
  width: 32%;
  text-align: center;
}

.grid-item .grid-image {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-image var(--transition-medium);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.grid-item .grid-image:hover {
  transform: scale(1.02);
}

/* Hover swap effect */
.grid-item .grid-image[data-hover] {
  transition: background-image var(--transition-medium);
}

.grid-item .grid-image[data-hover]:hover {
  background-image: var(--hover-bg, none);
}

.grid-item .grid-btn {
  display: inline-block;
  width: 160px;
  margin-top: 15px;
  padding: 10px 0;
  font-size: 14px;
  font-weight: bold;
  color: var(--color-text-dark);
  border: 1px solid #ccc;
  background: var(--color-bg-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.grid-item .grid-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

.grid-item .grid-caption {
  margin-top: 12px;
  font-size: 14px;
  color: #666;
}

/* ==========================================================
   8. HOMEPAGE: TAB/VENUE SECTION
   ========================================================== */
.venue-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 15px;
  min-height: 475px;
}

.venue-section .section-title {
  font-size: 70px;
  font-weight: normal;
  color: var(--color-text-dark);
  text-align: center;
  line-height: 1.2;
  font-family: var(--font-heading);
}

.venue-section .section-subtitle {
  font-size: 30px;
  font-weight: bold;
  color: var(--color-text-dark);
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.3;
}

/* Venue Tabs */
.venue-tabs {
  display: flex;
  justify-content: center;
  gap: 5px;
  margin-bottom: 35px;
  flex-wrap: wrap;
}

.venue-tabs .tab-btn {
  padding: 10px 30px;
  font-size: 20px;
  font-weight: bold;
  color: var(--color-accent-warm);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  text-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.venue-tabs .tab-btn:hover {
  color: #c4a08a;
}

.venue-tabs .tab-btn.active {
  color: #dcdcdc;
  text-shadow: none;
}

.venue-tabs .tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background-color: var(--color-accent-warm);
}

/* Venue Tab Content */
.venue-content {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.venue-panel {
  display: none;
  flex: 1;
  gap: 20px;
  justify-content: center;
}

.venue-panel.active {
  display: flex;
}

.venue-panel .venue-image {
  flex: 1;
  max-width: 360px;
  height: 394px;
  overflow: hidden;
}

.venue-panel .venue-image .img-placeholder {
  width: 100%;
  height: 100%;
  font-size: 16px;
}

/* ==========================================================
   9. HOMEPAGE: LARGE BANNER SECTION
   ========================================================== */
.large-banner-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 15px;
  min-height: 451px;
}

.large-banner-section .section-title {
  font-size: 70px;
  font-weight: normal;
  color: var(--color-text-dark);
  text-align: center;
  line-height: 1.2;
  font-family: var(--font-heading);
}

.large-banner-section .section-subtitle {
  font-size: 30px;
  font-weight: bold;
  color: var(--color-text-dark);
  text-align: center;
  margin-bottom: 30px;
}

.large-banner-section .large-image {
  width: 91.25%;
  margin: 0 auto;
  height: 401px;
}

.large-banner-section .large-image .img-placeholder {
  width: 100%;
  height: 100%;
  font-size: 20px;
}

/* ==========================================================
   10. SUB-PAGE BANNERS
   ========================================================== */
.page-banner {
  width: 100%;
  height: 400px;
  margin-top: var(--header-height);
  position: relative;
  overflow: hidden;
}

.page-banner .img-placeholder {
  width: 100%;
  height: 100%;
  font-size: 20px;
}

.page-banner .banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-banner .banner-title {
  font-size: 42px;
  font-weight: bold;
  color: var(--color-text-white);
  letter-spacing: 4px;
}

/* ==========================================================
   11. SUB-PAGE CONTENT SECTIONS
   ========================================================== */
.content-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 15px;
}

.content-section .section-header {
  text-align: center;
  margin-bottom: 50px;
}

.content-section .section-header h2 {
  font-size: 36px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 5px;
}

.content-section .section-header p {
  font-size: 16px;
  color: var(--color-text-gray);
}

.content-section .section-header .divider {
  width: 60px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 15px auto 0;
}

/* Two-column layout */
.two-col {
  display: flex;
  gap: 40px;
  align-items: center;
}

.two-col .col-text {
  flex: 1;
}

.two-col .col-text h3 {
  font-size: 28px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 20px;
}

.two-col .col-text p {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
  margin-bottom: 15px;
}

.two-col .col-image {
  flex: 1;
  min-height: 350px;
}

.two-col .col-image .img-placeholder {
  width: 100%;
  height: 350px;
  border-radius: 4px;
}

.two-col.reverse {
  flex-direction: row-reverse;
}

/* Three-column card grid */
.card-grid {
  display: flex;
  gap: 25px;
  justify-content: center;
}

.card-grid .card {
  flex: 1;
  max-width: 360px;
  text-align: center;
  background: var(--color-bg-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 15px rgba(0,0,0,0.08);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card-grid .card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card-grid .card .card-image {
  height: 250px;
}

.card-grid .card .card-image .img-placeholder {
  width: 100%;
  height: 100%;
  font-size: 14px;
}

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

.card-grid .card .card-body h4 {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 10px;
}

.card-grid .card .card-body p {
  font-size: 14px;
  color: #888;
  line-height: 1.6;
}

/* Feature list grid */
.feature-grid {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.feature-item {
  flex: 0 0 calc(33.333% - 30px);
  min-width: 280px;
  text-align: center;
  padding: 30px 20px;
  transition: transform var(--transition-fast);
}

.feature-item:hover {
  transform: translateY(-3px);
}

.feature-item .feature-icon {
  font-size: 40px;
  margin-bottom: 15px;
  color: var(--color-primary);
}

.feature-item h4 {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 14px;
  color: #888;
  line-height: 1.6;
}

/* ==========================================================
   12. ABOUT PAGE
   ========================================================== */
.about-intro {
  display: flex;
  gap: 50px;
  align-items: flex-start;
}

.about-intro .about-text {
  flex: 1;
}

.about-intro .about-text h3 {
  font-size: 28px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--color-accent-light);
}

.about-intro .about-text p {
  font-size: 15px;
  color: #666;
  line-height: 2;
  margin-bottom: 15px;
}

.about-intro .about-image {
  flex: 1;
}

.about-intro .about-image .img-placeholder {
  width: 100%;
  height: 400px;
  border-radius: 4px;
}

/* Timeline/Values */
.values-grid {
  display: flex;
  gap: 20px;
}

.value-card {
  flex: 1;
  text-align: center;
  padding: 30px 20px;
  border: 1px solid #eee;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.value-card:hover {
  border-color: var(--color-accent-light);
  background-color: rgba(180, 209, 186, 0.05);
}

.value-card .value-number {
  font-size: 48px;
  font-weight: bold;
  color: var(--color-accent-light);
  margin-bottom: 10px;
}

.value-card h4 {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.value-card p {
  font-size: 14px;
  color: #888;
}

/* ==========================================================
   13. BOOKING PAGE
   ========================================================== */
.booking-wrapper {
  display: flex;
  gap: 50px;
}

.booking-form {
  flex: 1;
}

.booking-form h3 {
  font-size: 24px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #e74c3c;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 15px;
  color: var(--color-text-dark);
  background: #fafafa;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-white);
  box-shadow: 0 0 0 3px rgba(93, 118, 126, 0.1);
}

.form-control::placeholder {
  color: #bbb;
}

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

.btn-submit {
  display: inline-block;
  padding: 14px 50px;
  font-size: 16px;
  font-weight: bold;
  color: var(--color-text-white);
  background-color: var(--color-primary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-submit:hover {
  background-color: #4a6068;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(93, 118, 126, 0.3);
}

/* Booking Info Sidebar */
.booking-info {
  flex: 0 0 350px;
}

.booking-info .info-card {
  background: #f9f9f9;
  border-radius: 8px;
  padding: 30px;
  margin-bottom: 20px;
}

.booking-info .info-card h4 {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-text-dark);
  margin-bottom: 15px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent-light);
}

.booking-info .info-card .info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

.booking-info .info-card .info-item .info-icon {
  font-size: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ==========================================================
   14. RESPONSIVE: TABLET (641px - 1200px)
   ========================================================== */
@media screen and (max-width: 1200px) {
  .header-inner {
    padding: 0 20px;
  }

  .main-nav {
    width: auto;
  }

  .nav-list a {
    font-size: 14px;
    padding: 6px 8px;
  }

  /* Banner */
  .banner-carousel {
    height: 406px;
  }

  /* About section */
  .about-section {
    height: auto;
    min-height: 150px;
    flex-direction: column;
    text-align: center;
    padding: 30px 20px;
  }

  .about-section .about-left h2 {
    font-size: 48px;
    line-height: 50px;
  }

  .about-section .about-right {
    padding-left: 0;
    margin-top: 20px;
  }

  .about-section .about-right .about-note {
    text-align: center;
  }

  /* Image grid */
  .image-grid-section {
    min-height: auto;
    padding: 30px 20px;
  }

  .image-grid {
    flex-wrap: wrap;
  }

  .grid-item {
    width: 30%;
  }

  /* Venue section */
  .venue-section .section-title {
    font-size: 50px;
  }

  .venue-section .section-subtitle {
    font-size: 24px;
  }

  .venue-tabs .tab-btn {
    font-size: 16px;
    padding: 8px 20px;
  }

  .venue-panel .venue-image {
    height: 280px;
  }

  /* Large banner */
  .large-banner-section .section-title {
    font-size: 50px;
  }

  .large-banner-section .section-subtitle {
    font-size: 24px;
  }

  .large-banner-section .large-image {
    height: 300px;
  }

  /* Footer */
  .footer-left {
    width: 25%;
  }

  .footer-middle {
    width: 30%;
  }

  .footer-contact {
    width: 45%;
  }

  .footer-qr {
    width: 100%;
    margin-top: 20px;
    text-align: left;
  }

  .footer-nav .nav-list {
    margin-left: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
  }

  /* Sub pages */
  .page-banner {
    height: 300px;
  }

  .card-grid {
    flex-wrap: wrap;
  }

  .card-grid .card {
    flex: 0 0 calc(50% - 15px);
    max-width: calc(50% - 15px);
  }

  .two-col {
    flex-direction: column;
  }

  .two-col.reverse {
    flex-direction: column;
  }

  .booking-wrapper {
    flex-direction: column;
  }

  .booking-info {
    flex: 1;
  }
}

/* ==========================================================
   15. RESPONSIVE: MOBILE (< 640px)
   ========================================================== */
@media screen and (max-width: 640px) {
  :root {
    --header-height: var(--header-height-mobile);
  }

  /* Header */
  .header-logo img {
    width: 138px;
    height: 40px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* PC Banner hidden, mobile shown */
  .banner-carousel {
    display: none;
  }

  .banner-mobile {
    display: block;
    width: 100%;
    height: 562px;
    margin-top: var(--header-height);
    position: relative;
    overflow: hidden;
  }

  .banner-mobile .carousel-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease-in-out;
  }

  .banner-mobile .carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
  }

  .banner-mobile .carousel-slide .img-placeholder {
    width: 100%;
    height: 100%;
    font-size: 18px;
  }

  .banner-mobile .carousel-arrow {
    font-size: 40px;
  }

  .banner-mobile .carousel-arrow.prev {
    left: 10px;
  }

  .banner-mobile .carousel-arrow.next {
    right: 10px;
  }

  /* About section - hidden on mobile as per spec */
  .about-section {
    display: none;
  }

  /* Image grid - hidden on mobile */
  .image-grid-section {
    display: none;
  }

  /* Venue section */
  .venue-section {
    padding: 30px 15px;
    min-height: auto;
  }

  .venue-section .section-title {
    font-size: 36px;
  }

  .venue-section .section-subtitle {
    font-size: 18px;
    margin-bottom: 20px;
  }

  .venue-tabs {
    gap: 2px;
  }

  .venue-tabs .tab-btn {
    font-size: 14px;
    padding: 8px 14px;
  }

  .venue-panel {
    flex-direction: column;
    align-items: center;
  }

  .venue-panel .venue-image {
    max-width: 100%;
    height: 250px;
  }

  /* Large banner */
  .large-banner-section {
    padding: 20px 15px;
    min-height: auto;
  }

  .large-banner-section .section-title {
    font-size: 36px;
  }

  .large-banner-section .section-subtitle {
    font-size: 18px;
  }

  .large-banner-section .large-image {
    width: 100%;
    height: 220px;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    padding: 40px 15px 20px;
  }

  .footer-nav .nav-list {
    margin-left: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
  }

  .footer-nav .nav-list a {
    font-size: 13px;
  }

  .footer-left,
  .footer-middle,
  .footer-contact,
  .footer-qr {
    width: 100%;
    padding: 10px 0;
    text-align: center;
  }

  .footer-left .footer-separator {
    margin: 0 auto;
  }

  .footer-contact .contact-item {
    justify-content: center;
    line-height: 40px;
  }

  .footer-qr img {
    margin: 10px auto;
  }

  .footer-bottom {
    margin-top: 10px;
  }

  /* Sub pages */
  .page-banner {
    height: 220px;
  }

  .page-banner .banner-title {
    font-size: 28px;
  }

  .content-section {
    padding: 30px 15px;
  }

  .content-section .section-header h2 {
    font-size: 26px;
  }

  .card-grid {
    flex-direction: column;
    align-items: center;
  }

  .card-grid .card {
    flex: 1;
    max-width: 100%;
    width: 100%;
  }

  .two-col {
    flex-direction: column;
    gap: 20px;
  }

  .two-col .col-image .img-placeholder {
    height: 250px;
  }

  .feature-grid {
    flex-direction: column;
    align-items: center;
  }

  .feature-item {
    flex: 1;
    min-width: auto;
    width: 100%;
  }

  /* About */
  .about-intro {
    flex-direction: column;
    gap: 30px;
  }

  .about-intro .about-image .img-placeholder {
    height: 250px;
  }

  .values-grid {
    flex-direction: column;
    gap: 15px;
  }

  /* Booking */
  .booking-wrapper {
    flex-direction: column;
    gap: 30px;
  }

  .booking-info {
    flex: 1;
  }

  .btn-submit {
    width: 100%;
    text-align: center;
  }
}

/* ==========================================================
   16. ANIMATIONS & UTILITIES
   ========================================================== */
/* Fade in animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* Hidden utility */
.hidden-desktop {
  display: none;
}

.hidden-mobile {
  display: block;
}

@media screen and (max-width: 640px) {
  .hidden-mobile {
    display: none !important;
  }
  .hidden-desktop {
    display: block;
  }
}

/* Skip to main content - accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-text-white);
  padding: 8px 16px;
  z-index: 9999;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .banner-carousel,
  .menu-toggle,
  .mobile-overlay {
    display: none !important;
  }
}