/* 基础按钮样式 - 所有按钮共享 */
.home-btn, .docs-btn, .submit-btn, .profile-btn {
    position: relative;
    padding: 12px 35px;
    font-size: 14px;
    font-weight: 600;
    color: #000000;  /* 初始状态文字为黑色 */
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    transition: all 0.3s ease-in-out;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    margin: 5px;
    outline: none;
    z-index: 1;
}

/* 两颗大星星的容器 - 用于定位文字 */
.home-btn .star-1,
.home-btn .star-2,
.docs-btn .star-1,
.docs-btn .star-2,
.submit-btn .star-1,
.submit-btn .star-2,
.profile-btn .star-1,
.profile-btn .star-2 {
    position: relative;
    display: inline-block;
}

/* 文字初始位置 - 在大星星上 */
.home-btn::before,
.docs-btn::before,
.submit-btn::before,
.profile-btn::before {
    content: attr(data-text);  /* 需要添加 data-text 属性 */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-55%, -50%);
    color: #000000;
    font-weight: 600;
    z-index: 10;
    transition: all 0.3s ease-in-out;
    opacity: 1;
    text-shadow: 0 0 16px #ffffff;
}

/* 悬停时文字回到中间并变为亮色 */
.home-btn:hover::before,
.docs-btn:hover::before,
.submit-btn:hover::before,
.profile-btn:hover::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fec195;  /* 各按钮颜色不同，需要在各自样式中覆盖 */
    opacity: 1;
}

/* 首页按钮悬停文字颜色 */
.home-btn:hover::before {
    color: #fec195;
    text-shadow: 0 0 20px #fec195;
}

/* 文档按钮悬停文字颜色 */
.docs-btn:hover::before {
    color: #7aa5f5;
    text-shadow: 0 0 20px #7aa5f5;
}

/* 投稿按钮悬停文字颜色 */
.submit-btn:hover::before {
    color: #c97af5;
    text-shadow: 0 0 20px #c97af5;
}

/* 用户按钮悬停文字颜色 */
.profile-btn:hover::before {
    color: #4ecdc4;
    text-shadow: 0 0 20px #4ecdc4;
}

/* 两颗大星星的样式 - 用于承载文字 */
.home-btn .star-1,
.docs-btn .star-1,
.submit-btn .star-1,
.profile-btn .star-1 {
    position: absolute;
    top: 7%;
    left: 20%;
    width: 40px;  /* 大星星 */
    height: auto;
    filter: drop-shadow(0 0 0 #fffdef);
    z-index: 5;
    transition: all 0.8s cubic-bezier(0.05, 0.83, 0.43, 0.96);
}

.home-btn .star-2,
.docs-btn .star-2,
.submit-btn .star-2,
.profile-btn .star-2 {
    position: absolute;
    top: 15%;
    left: 40%;
    width: 35px;  /* 第二大星星 */
    height: auto;
    filter: drop-shadow(0 0 0 #fffdef);
    z-index: 5;
    transition: all 0.8s cubic-bezier(0.05, 0.83, 0.43, 0.96);
}

/* 其他小星星保持不变 */
.star-3, .star-4, .star-5, .star-6 {
    position: absolute;
    width: 25px;
    height: auto;
    filter: drop-shadow(0 0 0 #fffdef);
    z-index: -5;
    transition: all 0.8s cubic-bezier(0.05, 0.83, 0.43, 0.96);
}

.star-3 { top: 40%; left: 40%; width: 5px; }
.star-4 { top: 20%; left: 40%; width: 8px; }
.star-5 { top: 25%; left: 45%; width: 15px; }
.star-6 { top: 5%; left: 50%; width: 5px; }

/* 星星填充颜色 - 根据按钮类型变化 */
.home-btn .fil0 { fill: #fec195; }
.docs-btn .fil0 { fill: #7aa5f5; }
.submit-btn .fil0 { fill: #c97af5; }
.profile-btn .fil0 { fill: #4ecdc4; }

/* 左上角斜线 (\.) */
.home-btn::after, .docs-btn::after, .submit-btn::after, .profile-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 30px;
    border-top: 2px solid;
    border-left: 2px solid;
    transform: rotate(0deg);
    transition: all 0.3s ease-in-out;
    z-index: 1;
}

/* 右下角斜线 (/) */
.home-btn .corner, .docs-btn .corner, .submit-btn .corner, .profile-btn .corner {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 30px;
    height: 30px;
    border-bottom: 2px solid;
    border-right: 2px solid;
    transition: all 0.3s ease-in-out;
    z-index: 1;
}

/* 首页按钮斜线颜色 */
.home-btn::after, .home-btn .corner {
    border-color: #fec195;
}

/* 文档按钮斜线颜色 */
.docs-btn::after, .docs-btn .corner {
    border-color: #7aa5f5;
}

/* 投稿按钮斜线颜色 */
.submit-btn::after, .submit-btn .corner {
    border-color: #c97af5;
}

/* 用户按钮斜线颜色 */
.profile-btn::after, .profile-btn .corner {
    border-color: #4ecdc4;
}

/* 悬停效果 - 斜线延伸 */
.home-btn:hover::after {
    width: 50px;
    height: 50px;
    border-top-width: 3px;
    border-left-width: 3px;
}

.home-btn:hover .corner {
    width: 50px;
    height: 50px;
    border-bottom-width: 3px;
    border-right-width: 3px;
}

.docs-btn:hover::after {
    width: 50px;
    height: 50px;
    border-top-width: 3px;
    border-left-width: 3px;
    transform: rotate(10deg);
}

.docs-btn:hover .corner {
    width: 50px;
    height: 50px;
    border-bottom-width: 3px;
    border-right-width: 3px;
    transform: rotate(-10deg);
}

.submit-btn:hover::after {
    width: 60px;
    height: 60px;
    border-top-width: 3px;
    border-left-width: 3px;
    transform: rotate(15deg);
}

.submit-btn:hover .corner {
    width: 60px;
    height: 60px;
    border-bottom-width: 3px;
    border-right-width: 3px;
    transform: rotate(-15deg);
}

.profile-btn:hover::after {
    width: 55px;
    height: 55px;
    border-top-width: 3px;
    border-left-width: 3px;
    animation: pulseBorder 0.8s ease-in-out infinite;
}

.profile-btn:hover .corner {
    width: 55px;
    height: 55px;
    border-bottom-width: 3px;
    border-right-width: 3px;
    animation: pulseBorder 0.8s ease-in-out infinite 0.2s;
}

/* 脉冲动画 */
@keyframes pulseBorder {
    0%, 100% {
        opacity: 1;
        border-width: 2px;
    }
    50% {
        opacity: 0.6;
        border-width: 4px;
    }
}

/* 悬停效果 - 大星星移动，文字随之移动 */
.home-btn:hover .star-1 {
    top: 60%; left: -30%; width: 20px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.home-btn:hover .star-2 {
    top: -25%; left: 10%; width: 15px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.docs-btn:hover .star-1 {
    top: -20%; left: 80%; width: 20px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
    transform: rotate(180deg);
}

.docs-btn:hover .star-2 {
    top: 80%; left: 110%; width: 15px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
}

.submit-btn:hover .star-1 {
    top: 40%; left: -40%; width: 20px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(720deg);
    transition: all 1.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.submit-btn:hover .star-2 {
    top: -30%; left: 50%; width: 15px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(-360deg);
    transition: all 1s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.profile-btn:hover .star-1 {
    top: 30%; left: -20%; width: 22px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite;
}

.profile-btn:hover .star-2 {
    top: -15%; left: 25%; width: 18px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite 0.1s;
}

/* 其他小星星的悬停效果保持不变 */
.home-btn:hover .star-3 {
    top: 55%; left: 25%; width: 5px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.home-btn:hover .star-4 {
    top: 30%; left: 80%; width: 8px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.home-btn:hover .star-5 {
    top: 25%; left: 115%; width: 15px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.home-btn:hover .star-6 {
    top: 5%; left: 60%; width: 5px;
    filter: drop-shadow(0 0 10px #fec195);
    z-index: 2;
}

.docs-btn:hover .star-3 {
    top: -30%; left: 30%; width: 5px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
}

.docs-btn:hover .star-4 {
    top: 70%; left: -20%; width: 8px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
}

.docs-btn:hover .star-5 {
    top: 45%; left: 120%; width: 15px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
}

.docs-btn:hover .star-6 {
    top: -15%; left: 70%; width: 5px;
    filter: drop-shadow(0 0 10px #7aa5f5);
    z-index: 2;
}

.submit-btn:hover .star-3 {
    top: 70%; left: 130%; width: 5px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(540deg);
    transition: all 1.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.submit-btn:hover .star-4 {
    top: 20%; left: -20%; width: 8px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(-720deg);
    transition: all 1.1s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.submit-btn:hover .star-5 {
    top: 80%; left: -30%; width: 15px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(360deg);
    transition: all 1.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.submit-btn:hover .star-6 {
    top: -20%; left: 90%; width: 5px;
    filter: drop-shadow(0 0 10px #c97af5);
    z-index: 2;
    transform: rotate(-540deg);
    transition: all 0.9s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.profile-btn:hover .star-3 {
    top: 65%; left: 110%; width: 8px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite 0.2s;
}

.profile-btn:hover .star-4 {
    top: 45%; left: -25%; width: 12px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite 0.3s;
}

.profile-btn:hover .star-5 {
    top: 10%; left: 115%; width: 18px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite 0.4s;
}

.profile-btn:hover .star-6 {
    top: 80%; left: -15%; width: 8px;
    filter: drop-shadow(0 0 15px #4ecdc4);
    z-index: 2;
    animation: pulse 0.8s ease-in-out infinite 0.5s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.8;
    }
}