/* ============================================================
   导航栏 - 基于原有样式优化
   ============================================================ */
.navbar {
    background: #ffffff;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 32px;
    transition: box-shadow 0.3s;
    height: 100px;
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.navbar .logo {
    padding-left: 10px;
    height: 130%;
    width: auto;
    font-size: 2rem;
    font-weight: 700;
    color: #4a0b0b;
    letter-spacing: -0.5px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.navbar .logo span {
    color: #e9513c;
}

.navbar .logo img {
    height: 100%;
    width: auto;
    max-height: 60px;
    object-fit: contain;
}

.navbar .display-qr {
    display: none;
}

/* ============================================================
   右侧工具栏 - 横向排列语言按钮和联系我们
   ============================================================ */
.navbar-right-tools {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

/* ============================================================
   导航链接 - 居中
   ============================================================ */
.navbar .nav-links {
    display: flex;
    align-items: center;
    gap: 72px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar .nav-links li a {
    font-weight: 600;
    color: #2d4055;
    transition: color 0.3s;
    font-size: 1.15rem;
    position: relative;
    white-space: nowrap;
    letter-spacing: 0.3px;
    cursor: pointer;
    text-decoration: none;
}

.navbar .nav-links li a:hover {
    color: #2b7fc1;
}

.navbar .nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2.5px;
    background: #2b7fc1;
    transition: width 0.3s;
}

.navbar .nav-links li a:hover::after {
    width: 100%;
}

.navbar .nav-links li a.active {
    color: #2b7fc1;
}

.navbar .nav-links li a.active::after {
    width: 100%;
}

/* ============================================================
   联系我们按钮
   ============================================================ */
.navbar .btn-book {
    background: #0b2a4a;
    color: #fff !important;
    padding: 12px 34px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.05rem;
    transition: background 0.25s, transform 0.15s;
    flex-shrink: 0;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    text-decoration: none;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.navbar .btn-book:hover {
    background: #1c4e70;
    transform: translateY(-2px);
}

.navbar .btn-book::after {
    display: none !important;
}

/* ============================================================
   联系方式抽屉（保留 hover 触发）
   ============================================================ */
.contact-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.contact-drawer {
    position: absolute;
    top: calc(100% + 16px);
    right: 0;
    width: 300px;
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1000;
    overflow: hidden;
    pointer-events: none;
    /* 默认不可交互，防止遮挡语言按钮 */
}

.contact-drawer.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
    /* 打开后可交互 */
}

.contact-drawer .drawer-content {
    padding: 24px 24px 20px;
}

.contact-drawer .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    color: #2d4055;
    font-size: 0.85rem;
    line-height: 1.5;
}

.contact-drawer .contact-item .icon {
    font-size: 1.1rem;
    width: 28px;
    flex-shrink: 0;
    text-align: center;
}

.contact-drawer .contact-item .label {
    color: #7a8a9a;
    font-weight: 400;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.contact-drawer .contact-item a {
    color: #0b2a4a;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-drawer .contact-item a:hover {
    color: #2b7fc1;
}

.contact-item img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    margin: 4px auto 0;
    display: block;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

/* ============================================================
   语言切换按钮 - 公共样式（独立于抽屉，z-index 更高）
   ============================================================ */
.lang-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    border: 1.5px solid #e0e6ed;
    border-radius: 50px;
    background: #ffffff;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: #2d4055;
    transition: all 0.3s ease;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    white-space: nowrap;
    position: relative;
    z-index: 1004;
    /* 高于抽屉 */
}

.lang-btn:hover {
    border-color: #2b7fc1;
    background: #f0f7ff;
}

.lang-btn .lang-arrow {
    font-size: 0.6rem;
    color: #7a8a9a;
    transition: transform 0.3s ease;
}

.lang-btn.open .lang-arrow {
    transform: rotate(180deg);
}

/* ============================================================
   语言下拉菜单（z-index 高于抽屉和语言按钮）
   ============================================================ */
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    padding: 6px 0;
    min-width: 110px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 1005;
    /* 高于抽屉和语言按钮 */
}

.lang-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: 10px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: #2d4055;
    transition: all 0.2s ease;
    text-align: left;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

.lang-option:hover {
    background: #f0f7ff;
    color: #2b7fc1;
}

.lang-option.active {
    color: #2b7fc1;
    background: #f0f7ff;
    font-weight: 600;
}

.lang-option.active::after {
    content: ' ✓';
    color: #2b7fc1;
}

/* ============================================================
   桌面端语言切换 - 独立于抽屉，位于"联系我们"左侧
   ============================================================ */
.desktop-lang-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-right: 12px;
}

.desktop-lang-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.desktop-lang-dropdown {
    min-width: 120px;
}

/* ============================================================
   手机端语言切换 - 汉堡菜单左侧
   ============================================================ */
.mobile-lang-wrapper {
    display: none;
    position: relative;
    align-items: center;
    flex-shrink: 0;
    margin-right: 4px;
}

.mobile-lang-btn {
    padding: 6px 12px;
    font-size: 0.85rem;
    border-color: #d0d8e0;
}

.mobile-lang-btn .lang-text {
    font-size: 0.85rem;
}

.mobile-lang-dropdown {
    min-width: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
}

.mobile-lang-dropdown.open {
    transform: translateX(-50%) translateY(0);
}

/* ============================================================
   汉堡菜单按钮（三横线）
   ============================================================ */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
    z-index: 1001;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.hamburger:hover {
    background: rgba(11, 42, 74, 0.04);
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background: #0b2a4a;
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-origin: center;
}

/* 汉堡菜单激活 → 变成 ✕ */
.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ============================================================
   响应式 - 平板（1024px）
   ============================================================ */
@media (max-width: 1024px) {
    .navbar .nav-links {
        gap: 32px;
    }

    .navbar .nav-links li a {
        font-size: 1rem;
    }

    .navbar .btn-book {
        padding: 10px 24px;
        font-size: 0.95rem;
    }
}

/* ============================================================
   响应式 - 手机（768px）
   ============================================================ */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 16px;
        height: 68px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
    }

    .navbar .display-qr {
        display: inline-block;
    }

    .navbar .logo {
        height: 100%;
        padding-left: 0;
        font-size: 1.4rem;
        margin-right: 0;
        flex-shrink: 0;
        margin-right: auto;
    }

    .navbar .logo img {
        max-height: 44px;
    }

    /* ============================================================
       手机端：显示语言切换，隐藏桌面端语言切换
       ============================================================ */
    .mobile-lang-wrapper {
        display: flex;
    }

    .desktop-lang-wrapper {
        display: none !important;
    }

    /* 隐藏桌面端的联系我们按钮 */
    .navbar .btn-book {
        display: none !important;
    }

    /* ============================================================
       汉堡菜单按钮 - 贴住右边界
       ============================================================ */
    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px 4px 8px 8px;
        background: none;
        border: none;
        z-index: 1001;
        border-radius: 8px;
        transition: background 0.3s ease;
        flex-shrink: 0;
        margin-left: 0;
        margin-right: -4px;
    }

    .hamburger:hover {
        background: rgba(11, 42, 74, 0.04);
    }

    .hamburger span {
        display: block;
        width: 28px;
        height: 3px;
        background: #0b2a4a;
        border-radius: 2px;
        transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        transform-origin: center;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* ============================================================
       联系方式抽屉 - 手机端
       ============================================================ */
    .contact-wrapper {
        order: 3;
        margin-left: 0;
        flex-shrink: 0;
    }

    .contact-drawer {
        width: 280px;
        right: -10px;
        top: calc(100% + 12px);
    }

    .contact-drawer .drawer-content {
        padding: 20px;
    }

    .contact-drawer .contact-item {
        font-size: 0.8rem;
    }

    .contact-drawer .contact-item img {
        width: 80px;
        height: 80px;
    }

    /* 手机端下拉菜单定位调整 */
    .mobile-lang-dropdown {
        left: 50%;
        transform: translateX(-50%) translateY(-6px);
        min-width: 100px;
    }

    .mobile-lang-dropdown.open {
        transform: translateX(-50%) translateY(0);
    }

    /* ============================================================
       导航链接 - 全屏竖向菜单
       ============================================================ */
    .navbar .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        width: 100%;
        height: calc(100vh - 68px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        background: #ffffff;
        padding: 16px 20px 30px;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        z-index: 999;
        border-top: 1px solid rgba(0, 0, 0, 0.04);
        margin: 0;
    }

    .navbar .nav-links.active {
        transform: translateX(0);
    }

    .navbar .nav-links li {
        width: 100%;
        border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    }

    .navbar .nav-links li:last-child {
        border-bottom: none;
    }

    .navbar .nav-links li a {
        display: block;
        padding: 14px 16px;
        font-size: 1.05rem;
        text-align: left;
        color: #2d4055;
        font-weight: 500;
        text-decoration: none;
    }

    .navbar .nav-links li a::after {
        display: none;
    }

    .navbar .nav-links li a.active {
        color: #2b7fc1;
        background: rgba(43, 127, 193, 0.06);
        border-radius: 8px;
    }

    .navbar .nav-links li a:hover {
        background: rgba(0, 0, 0, 0.02);
        border-radius: 8px;
    }

    /* 手机端：在菜单底部添加"联系我们"按钮 */
    .navbar .nav-links .mobile-contact-btn {
        display: block !important;
        margin-top: 16px;
        padding: 14px 20px !important;
        background: #0b2a4a !important;
        color: #ffffff !important;
        border-radius: 12px !important;
        text-align: center;
        font-weight: 600 !important;
        font-size: 1.05rem !important;
        border: none !important;
        list-style: none;
    }

    .navbar .nav-links .mobile-contact-btn a {
        color: #ffffff !important;
        text-align: center;
        padding: 0 !important;
        background: transparent !important;
    }

    .navbar .nav-links .mobile-contact-btn:hover {
        background: #1c4e70 !important;
    }

    .navbar .nav-links .mobile-contact-btn::after {
        display: none !important;
    }
}

/* ============================================================
   小手机（480px）
   ============================================================ */
@media (max-width: 480px) {
    .navbar {
        padding: 12px 12px;
        height: 60px;
    }

    .navbar .logo img {
        padding-left: 15px;
    }

    .hamburger {
        padding: 6px 15px 6px 30px;
        margin-right: -2px;
    }

    .hamburger span {
        width: 24px;
        height: 2.5px;
    }

    .navbar .nav-links {
        top: 60px;
        height: calc(100vh - 60px);
        padding: 12px 16px 20px;
    }

    .navbar .nav-links li a {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    .contact-drawer {
        width: 260px;
        right: -20px;
    }

    .navbar .display-qr {
        display: inline-block;
    }

    /* 小手机语言切换按钮 */
    .mobile-lang-btn {
        padding: 4px 10px;
        font-size: 0.75rem;
        border-radius: 40px;
    }

    .mobile-lang-btn .lang-text {
        font-size: 0.75rem;
    }

    .mobile-lang-btn .lang-arrow {
        font-size: 0.5rem;
    }

    .mobile-lang-dropdown {
        min-width: 80px;
    }

    .lang-option {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}