:root {
            --primary-color:#558B7B;
            --secondary-color: #69988f;
            --text-color: #333;
            --text-light: #6c757d;
            --light-gray-bg: #f8f9fa;
            --border-color:#222}
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #fff;
            color: #212529;
            margin: 0;
            padding: 0;
        }
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .date-cell.disabled {
    color: #ccc;
    background-color: #f0f0f0;
    pointer-events: none;
    user-select: none;
}


.date-cell:not(.disabled) {
    cursor: pointer;
}

.date-cell:not(.disabled):not(.selected):hover {
    background-color: #e9ecef; /* 悬停时一个淡淡的灰色背景 */
    border-radius: 50%;
}

/* ✅ 新增：已订满的时间段样式 */
.time-slot.fully-booked {
    background-color: #f0f0f0; /* 设置一个浅灰色背景 */
    color: #b0b0b0;           /* 设置一个更浅的文字颜色 */
    cursor: not-allowed;       /* 鼠标悬停时显示“不可用”图标 */
    pointer-events: none;      /* 禁用所有鼠标事件，使其不可点击 */
    text-decoration: line-through; /* 添加删除线，更清晰 */
}


        /* --- 2. Header & Navigation --- */
        header {
            background-color: white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
      /* 容器布局 */
      
       /* --- 3. Promo Banner --- */
        .promo-banner {
            position: sticky;
            top: 60px;
            z-index: 999;
            background-color: var(--primary-color);
            color: white;
            padding: 10px 0;
            font-size: 0.9em;
            overflow: hidden;
            white-space: nowrap;
            margin: 0;
        }

        .promo-text {
            display: inline-block;
            padding-left: 100%;
            animation: scroll-text 20s linear infinite;
        }

        @keyframes scroll-text {
            0% { transform: translateX(0%); }
            100% { transform: translateX(-100%); }
        }
      
.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
}

/* 左侧 Logo */
.logo {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-decoration: none;
}

/* 菜单项（默认显示） */
.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.logo-img {
  height: 70px;
  vertical-align: middle;
}
.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

.nav-links a:hover {
  color: #58817a;
}

/* 汉堡按钮（默认隐藏） */
.menu-toggle {
  display: none;
  font-size: 24px;
  background: none;
  border: none;
  cursor: pointer;
}

/* 移动端样式 */
@media (max-width: 768px) {
  .menu-toggle {
    display: block; /* 显示汉堡菜单 */
  }

  .nav-links {
    display: none;         /* 默认不显示菜单 */
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
  }

  .nav-links.active {
    display: flex;         /* 点击按钮后显示 */
  }
}



        /* --- Hero Banner --- */
        section.hero1 {
            height: 180px;
            background-size: cover;
            background-position: center;
            display: flex;
            justify-content: center;
            align-items: center;
            text-align: center;
            position: relative; 
            color: white;
        }
        section.hero1::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 0;
        }
        .hero1-content {
            position: relative;
            z-index: 2;
        }
        .hero1-content h1 {
            font-size: 4.5em;
            font-weight: 600;
            margin: 0;
        }
        .hero1-content .cta-button {
             display: inline-block;
            background-color: #69988f;
            color: white;
            padding: 12px 30px;
            border-radius: 8px;
            font-size: 1em;
            margin-top: 20px;
            text-decoration: none;
        }
        
        /* --- Main Content Wrapper --- */
        .content-wrapper {
            max-width: 900px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        .page-title-section {
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
        }
        .page-title-section h1 {
            font-size: 1.5em;
            font-weight: 600;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .page-title-section p {
            color: var(--text-light);
            margin: 5px 0 0;
        }

        .booking-flow-container {
            display: flex;
            gap: 60px;
            align-items: flex-start;
        }

        .main-selection-area {
            flex: 2.5;
        }

        .services-list-wrapper {
            display: flex;
            flex-direction: column;
            gap: 80px;
        }
        
        .services-container {
            display: flex;
            gap: 60px;
            align-items: flex-start;
        }
        .service-description {
            flex: 1;
            min-width: 200px;
            position: sticky; 
            top: 90px; 
        }
        .service-description h2 {
            font-size: 2.2em;
            font-weight: 600;
            margin-top: 0;
            margin-bottom: 10px;
            text-align: left;
        }
        .service-description p {
            font-size: 1em;
            color: #6c757d;
        }
        .price-list {
            flex: 2.5;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .price-item {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            padding-bottom: 20px;
            border-bottom: #333
        }
         .service-price {
            font-size: 1.1rem;
            font-weight: 500;
            color: #888;
        }
        
        .service-info {
            display: flex;
            flex-direction: column;
        }
        .service-info .service-name {
            font-size: 1.2em;
            font-weight: 600;
        }
        .service-meta {
            display: flex;
            gap: 20px;
            margin-top: 10px;
            font-size: 0.9em;
            color: var(--text-light);
            text-transform: uppercase;
        }
        .meta-item span {
            display: block;
            font-weight: 600;
            color: #333;
            text-transform: none;
        }
        .book-now-btn {
            background-color: var(--secondary-color);
            color: white;
            padding: 10px 25px;
            border: none;
            border-radius: 8px;
            font-size: 1em;
            font-weight: 500;
            cursor: pointer;
            text-decoration: none;
            white-space: nowrap;
            transition: background-color 0.3s ease;
        }
        .book-now-btn:hover {
            background-color: var(--primary-color);
        }

        /* --- Add-Ons, Options, Date, Contact Styles --- */
        .add-ons-wrapper, .options-wrapper, .date-selection-wrapper, .contact-info-wrapper, .phone-verification-wrapper {
            display: flex;
            flex-direction: column;
        }
        .add-ons-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        .add-on-card {
            background-color: var(--light-gray-bg);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .add-on-card h3 {
            font-size: 1.1em;
            margin: 0 0 10px;
        }
        .add-on-card .meta-item {
            font-size: 0.9em;
            color: var(--text-light);
            margin-bottom: 5px;
        }
        .options-card {
            background-color: var(--light-gray-bg);
            padding: 30px;
            border-radius: 12px;
            display: flex;
            justify-content: space-around;
            align-items: center;
            margin-bottom: 40px;
        }
        .option-item { text-align: center; }
        .option-item h3 { font-size: 1.1em; margin: 0 0 15px; }
        .next-btn {
            align-self: center;
            background-color: var(--secondary-color);
            color: white;
            padding: 12px 40px;
            border: none;
            border-radius: 8px;
            font-size: 1em;
            font-weight: 500;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        .next-btn:hover {
            background-color: var(--primary-color);
        }

        .date-time-container { display: flex; gap: 20px; }
        .calendar-container, .time-slots-container {
            background-color: var(--light-gray-bg);
            border-radius: 12px;
            padding: 15px;
        }
        .calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; font-weight: 600; }
        .calendar-header button { background: none; border: none; cursor: pointer; font-size: 1.5em; }
        .calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; text-align: center; }
        .calendar-grid div { padding: 8px; cursor: pointer; border-radius: 50%; }
        .calendar-grid .day-name { font-weight: 500; font-size: 0.8em; color: var(--text-light); }
        .calendar-grid .date-cell:hover { background-color: #e2e6ea; }
        .calendar-grid .date-cell.selected { background-color: var(--secondary-color); color: white; }
        .time-slots-header { background-color: var(--secondary-color); color: white; padding: 10px; border-radius: 8px; text-align: center; margin-bottom: 15px; font-weight: 500; }
        .time-slots-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; max-height: 250px; overflow-y: auto; }
        .time-slot { background-color: white; border: 1px solid var(--border-color); border-radius: 8px; padding: 10px; text-align: center; cursor: pointer; transition: all 0.2s ease; }
        .time-slot:hover { background-color: var(--secondary-color); color: white; border-color: var(--secondary-color); }
        .time-slot.selected { background-color: var(--primary-color); color: white; border-color: var(--primary-color); }

        .contact-form { display: flex; flex-direction: column; gap: 20px; background-color: var(--light-gray-bg); padding: 30px; border-radius: 12px;}
        .form-row { display: flex; gap: 20px; }
        .form-group { flex: 1; display: flex; flex-direction: column; }
        .form-group label { margin-bottom: 8px; font-weight: 500; font-size: 0.9em; }
        .form-group input { padding: 12px; border: 1px solid #ccc; border-radius: 8px; font-size: 1em; font-family: inherit; }
        .checkbox-group { display: flex; align-items: flex-start; gap: 10px; font-size: 0.9em; }
        .checkbox-group input { margin-top: 5px; width: 1.3em; height: 1.3em; flex-shrink: 0; }
        
        .otp-inputs { display: flex; justify-content: center; gap: 10px; margin: 20px 0; }
        .otp-input { width: 45px; height: 50px; font-size: 1.5em; text-align: center; border: 1px solid #ccc; border-radius: 8px; }

        .toggle-switch { position: relative; display: inline-block; width: 50px; height: 28px; }
        .toggle-switch input { opacity: 0; width: 0; height: 0; }
        .slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 28px; }
        .slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
        input:checked + .slider { background-color: var(--secondary-color); }
        input:checked + .slider:before { transform: translateX(22px); }

        /* --- Booking Summary (Right Sidebar) --- */
        .booking-summary { flex: 1; min-width: 280px; background-color: var(--light-gray-bg); padding: 25px; border-radius: 12px; position: sticky; top: 90px; }
        .booking-summary h2 { font-size: 1.3em; text-align: left; margin: 0 0 20px; }
        .summary-item { font-size: 0.9em; margin-bottom: 15px; display: flex; justify-content: space-between; }
        .summary-item .label { color: var(--text-light); text-transform: uppercase; font-size: 0.8em; }
        .summary-item .value { font-weight: 600; text-align: right; }
        .summary-total { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border-color); }
        .start-over-btn { display: inline-block; margin-top: 20px; background: none; border: 1px solid #d32323; color: #d32323; padding: 8px 15px; border-radius: 20px; font-size: 0.8em; font-weight: 600; cursor: pointer; transition: all 0.2s ease; }
        .start-over-btn:hover { background-color: #d32323; color: white; }
        
        .hidden { display: none !important; }
        
        /* --- Footer and Back to Top Button --- */
        .site-footer { background-color: #f8f9fa; border-top: 1px solid #e9ecef; padding: 30px 0; font-size: 0.9em; color: var(--text-light); }
        .footer-container { max-width: 1100px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
        .copyright-text { margin: 0; }
        .social-links { display: flex; gap: 15px; }
        .social-icon { display: flex; justify-content: center; align-items: center; width: 36px; height: 36px; background-color: #e9ecef; border-radius: 50%; transition: background-color 0.2s ease; }
        .social-icon:hover { background-color: #dee2e6; }
        .social-icon svg, .social-icon img { width: 20px; height: auto; }
        .back-to-top-btn { position: fixed; bottom: 30px; right: 30px; background-color: var(--secondary-color); color: white; width: 50px; height: 50px; border-radius: 50%; display: flex; justify-content: center; align-items: center; text-decoration: none; z-index: 1000; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s; box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
        .back-to-top-btn.show { opacity: 1; visibility: visible; }

        /* --- Responsive Design --- */
        @media (max-width: 768px) {
            .nav-links { display: none; position: absolute; top: 70px; left: 0; right: 0; background-color: white; flex-direction: column; text-align: center; padding: 20px 0; box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
            .nav-links li { padding: 15px 0; }
            .nav-toggle-label { display: flex; }
            .nav-toggle:checked ~ .nav-links { display: flex; }
            .nav-toggle:checked ~ .nav-toggle-label span:nth-child(1) { transform: rotate(45deg) translate(7px, 7px); }
            .nav-toggle:checked ~ .nav-toggle-label span:nth-child(2) { opacity: 0; }
            .nav-toggle:checked ~ .nav-toggle-label span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }
            .booking-flow-container { flex-direction: column-reverse; }
            .booking-summary { position: static; width: auto; margin-bottom: 30px; }
            .services-container { flex-direction: column; gap: 30px; }
            .service-description { position: static; text-align: center; }
            .service-description h2 { text-align: center; }
            .date-time-container { flex-direction: column; }
            .form-row { flex-direction: column; gap: 20px; }
            .footer-container { flex-direction: column; justify-content: center; gap: 15px; }
        }
        
  
  /* Main container for all service sections */
        .content-wrapper {
            max-width: 900px; /* Adjusted width for single column */
            margin: 0 auto;
            padding: 60px 20px;
        }

        /* UPDATED: Single column layout for each service category */
        .services-container {
            margin-bottom: 60px; /* Consistent spacing between sections */
        }
        .services-container:last-child {
            margin-bottom: 0;
        }

        /* Service category title and description */
        .service-heading h1 {
            font-family: 'Playfair Display', serif;
            font-size: 2.5rem;
            font-weight: 600;
            margin: 0 0 8px 0;
        }

        .service-heading p {
            font-size: 1rem;
            color: #888;
            margin-bottom: 30px;
        }

        /* The list of prices */
        .price-list {
            display: flex;
            flex-direction: column;
        }

        /* Individual item in the price list - Back to line-separated style */
        .price-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid #EAEAEA;
        }
        .price-list .price-item:first-child {
            border-top: 1px solid #EAEAEA;
        }

          .service-name {
            font-size: 1.1rem;
            font-weight: 700; /* UPDATED */
        }

        .service-price {
            font-size: 1.1rem;
            font-weight: 700; /* UPDATED */
            color: #333;       /* UPDATED */
        }
        
        
        /* For items that have nested details (like Facial) */
        .service-details {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .service-duration {
            font-size: 0.9rem;
            color: #777;
            margin-top: 4px;
        }