/* ===== 语言切换器 ===== */
.lang-switcher {
    position: relative;
    min-width: 140px;
    z-index: 1001;
}

.lang-select {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 40px;
    background: white;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.lang-select:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(10,92,245,0.15);
    transform: translateY(-1px);
}

.lang-select .flag-icon {
    width: 24px;
    height: 18px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.lang-select .lang-name {
    flex: 1;
    color: var(--text-dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
}

.lang-select i {
    color: var(--primary-color);
    font-size: 14px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-select:hover i {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 100%;
    min-width: 200px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    margin-top: 5px;
    display: none;
    z-index: 1000;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.98);
}

.lang-dropdown.show {
    display: block;
    animation: slideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lang-dropdown:before {
    content: '';
    position: absolute;
    top: -8px;
    right: 30px;
    width: 16px;
    height: 16px;
    background: white;
    border-top: 1px solid rgba(0,0,0,0.05);
    border-left: 1px solid rgba(0,0,0,0.05);
    transform: rotate(45deg);
    border-radius: 4px 0 0 0;
}

.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-size: 14px;
    position: relative;
    z-index: 1;
}

.lang-dropdown a:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, rgba(10,92,245,0.1) 0%, transparent 100%);
    transition: width 0.3s ease;
    z-index: -1;
}

.lang-dropdown a:hover:before {
    width: 100%;
}

.lang-dropdown a:last-child {
    border-bottom: none;
}

.lang-dropdown a:hover {
    color: var(--primary-color);
    padding-left: 25px;
}

.lang-dropdown a.active {
    background: var(--primary-color);
    color: white;
}

.lang-dropdown a.active:before {
    display: none;
}

.lang-dropdown .flag-icon {
    width: 22px;
    height: 16px;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 国旗图标 */
.flag-icon {
    display: inline-block;
    width: 20px;
    height: 14px;
    background-size: cover;
    background-position: center;
    vertical-align: middle;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.flag-zh { background-image: url('/images/country/cn.png'); }
.flag-en { background-image: url('/images/country/us.png'); }
.flag-es { background-image: url('/images/country/es.png'); }
.flag-ja { background-image: url('/images/country/jp.png'); }
.flag-ko { background-image: url('/images/country/kr.png'); }
.flag-fr { background-image: url('/images/country/fr.png'); }
.flag-de { background-image: url('/images/country/de.png'); }
.flag-ru { background-image: url('/images/country/ru.png'); }
.flag-it { background-image: url('/images/country/it.png'); }
.flag-pt { background-image: url('/images/country/pt.png'); }
.flag-br { background-image: url('/images/country/br.png'); }
.flag-sa { background-image: url('/images/country/sa.png'); }
.flag-th { background-image: url('/images/country/th.png'); }
.flag-vn { background-image: url('/images/country/vn.png'); }
.flag-my { background-image: url('/images/country/my.png'); }
.flag-nl { background-image: url('/images/country/nl.png'); }
.flag-pl { background-image: url('/images/country/pl.png'); }
.flag-tr { background-image: url('/images/country/tr.png'); }
.flag-gr { background-image: url('/images/country/gr.png'); }
.flag-hu { background-image: url('/images/country/hu.png'); }
.flag-se { background-image: url('/images/country/se.png'); }
.flag-fi { background-image: url('/images/country/fi.png'); }
.flag-dk { background-image: url('/images/country/dk.png'); }
.flag-no { background-image: url('/images/country/no.png'); }
.flag-cz { background-image: url('/images/country/cz.png'); }
.flag-ro { background-image: url('/images/country/ro.png'); }
.flag-bg { background-image: url('/images/country/bg.png'); }
.flag-hr { background-image: url('/images/country/hr.png'); }
.flag-rs { background-image: url('/images/country/rs.png'); }
.flag-sk { background-image: url('/images/country/sk.png'); }
.flag-si { background-image: url('/images/country/si.png'); }
.flag-ua { background-image: url('/images/country/ua.png'); }
.flag-il { background-image: url('/images/country/il.png'); }
.flag-in { background-image: url('/images/country/in.png'); }
.flag-id { background-image: url('/images/country/id.png'); }
.flag-globe { background-image: url('/images/country/world.png'); }