/* 
 * 主样式文件
 * 整合了所有必要的样式，优化性能和可维护性
 */

/* ===== 基础样式 ===== */
:root {
    --primary-color: #42A5F5;
    --secondary-color: #2196F3;
    --text-color: #f0f0f0;
    --text-secondary: #e0e0e0;
    --background-overlay: rgba(68, 68, 68, 0.6);
    --animation-speed: 0.3s;
    --footer-height: 35px;
    /* 减小高度，符合单行设计 */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    width: 100%;
    max-width: 100vw;
    min-width: 0;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: #181c27;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: hidden;
    padding-bottom: var(--footer-height);
    /* 添加底部填充，为底部版权腾出空间 */
}

/* ===== 面板样式 ===== */
.panel-cover {
    position: relative;
    width: 100%;
    min-height: 100%;
    padding-bottom: var(--footer-height);
    background: url(../images/photo.jpg) center center / cover no-repeat rgb(102, 102, 102);
    overflow: hidden;
    will-change: transform;
}

/* ===== 星空背景 ===== */
#starfield {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    will-change: transform;
}

#stars,
#stars2,
#stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    will-change: transform;
}

/* ===== 加载指示器 ===== */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #181c27;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loaded #loading-overlay {
    opacity: 0;
    visibility: hidden;
}

/* ===== 图片懒加载 ===== */
.lazy-load {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.lazy-load.loaded {
    opacity: 1;
}

/* ===== 工具类 ===== */
.hidden {
    display: none;
}

.text-center {
    text-align: center;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mb-5 {
    margin-bottom: 3rem;
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .visitor-info {
        bottom: 10px;
        right: 10px;
        padding: 10px;
    }

    .visitor-info-greeting {
        font-size: 14px;
    }

    .visitor-info-item {
        margin: 5px 0;
    }

    :root {
        --footer-height: 0;
        /* 移动端不预留空间 */
    }
}

@media (max-width: 480px) {
    .visitor-info {
        max-width: calc(100% - 20px);
        font-size: 12px;
    }

    :root {
        --footer-height: 0;
        /* 移动端不预留空间 */
    }
}

@media (max-width: 900px) {

    html,
    body {
        font-size: 15px;
    }
}

@media (max-width: 600px) {

    html,
    body {
        font-size: 14px;
        max-width: 100vw;
        min-width: 0;
        overflow-x: hidden;
    }

    .panel-main,
    .panel-main__inner,
    .panel-main__content {
        max-width: 100vw !important;
        min-width: 0;
        overflow-x: hidden;
        padding-left: 6px;
        padding-right: 6px;
        box-sizing: border-box;
    }

    .navigation-wrapper,
    .visitor-info {
        max-width: 100vw !important;
        min-width: 0;
        overflow-x: hidden;
    }
}

/* 超小屏幕优化 */
@media (max-width: 360px) {
    .panel-main__inner {
        padding: 10px 5px !important;
    }

    .panel-title {
        font-size: 1.4rem !important;
        margin: 8px 0 !important;
    }

    .panel-description {
        font-size: 0.8rem !important;
        margin: 10px 0 !important;
    }

    hr {
        margin: 8px auto !important;
    }

    .profile-image {
        width: 70px !important;
        height: 70px !important;
        margin-bottom: 10px !important;
    }

    :root {
        --footer-height: 0;
        /* 移动端不预留空间 */
    }
}

/* 兼容性修复 */
@supports (-webkit-touch-callout: none) {

    /* iOS设备特定修复 */
    .panel-main__inner {
        padding-bottom: 40px;
    }

    .navigation-wrapper {
        margin-bottom: 20px;
    }
}