a {
    text-decoration: none;
    color: inherit;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(230, 245, 230, 0.3) 0%, transparent 20%),
        radial-gradient(circle at 90% 60%, rgba(230, 245, 230, 0.3) 0%, transparent 20%),
        linear-gradient(45deg, rgba(240, 248, 240, 0.2) 25%, transparent 25%, transparent 75%, rgba(240, 248, 240, 0.2) 75%),
        linear-gradient(-45deg, rgba(240, 248, 240, 0.2) 25%, transparent 25%, transparent 75%, rgba(240, 248, 240, 0.2) 75%);
    background-size: 300px 300px;
}



body {
    background-color: #f5f7fa;
    color: #333;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    padding: 0;
    margin: 0;
}
/* 导航栏样式 */

header {
    background-color: #2c3e50;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}



nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;    
}
.logo {
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}
.logo span:first-child {
    color: #fff;
}
.logo span:last-child {
    color: #4CAF50;
    margin-left: 5px;
}
.nav-items {
    display: flex;
    align-items: center;
    gap: 25px;
}
.nav-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}
.nav-btn:hover {
    background-color: #3e8e41;
}
.language-select, .login-btn {
    color: #ddd;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 5px;
}
.language-select:hover, .login-btn:hover {
    color: white;
}
/*收藏管理css*/
.vip-button {
    display: inline-block;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    margin: 30px;
    z-index: 999;
    top: 10px;
    float: left;
}
.button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}
.rectangle {
    width: 36px;
    height: 120px;
    background: #27ae60;
    border-radius: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-weight: bold;
    font-size: 14px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    z-index: 2;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    line-height: 36px;
    text-align: center;
}
.connector {
    width: 4px;
    height: 20px;
    background: linear-gradient(to bottom, #27ae60, #1e7e34);
    z-index: 1;
}
.circle {
    width: 36px;
    height: 36px;
    background: #27ae60;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    border: 5px solid #27ae60;
}
.folder-icon {
    width: 20px;
    height: 16px;
    background: gold;
    position: relative;
    border-radius: 2px 4px 4px 4px;
}
.folder-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 0;
    width: 10px;
    height: 4px;
    background: gold;
    border-radius: 4px 4px 0 0;
}
.folder-icon::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 3px;
    width: 14px;
    height: 2px;
    background: rgba(0, 0, 0, 0.3);
}
.vip-button:hover {
    transform: translateY(-5px) scale(1.05);
}
.vip-button:active {
    transform: translateY(0) scale(1);
}
.shine {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}
@keyframes shine {
    0% {
        left: -50%;
    }
    100% {
        left: 150%;
    }
}
.pulse {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    border-radius: 50%;
    background: transparent;
    border: 1px solid rgba(255, 215, 0, 0.5);
    animation: pulse 2s infinite;
    z-index: -1;
}
@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}
/* 响应式设计 */
@media (max-width: 768px) {
    .display-none{
        display: none;
    }
}
@media (max-width: 480px) {
    .display-none{
        display: none;
    }
}