/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-image: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    padding: 15px 20px;
    position: relative;
    /* 默认背景色，在图片加载前展示 */
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

/* 背景图片样式 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--bg-image);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
    transition: opacity 0.5s ease-in-out;
    opacity: 0;
}

/* 背景加载状态 */
body.bg-loading::before {
    opacity: 0.5;
}

body.bg-loaded::before {
    opacity: 1;
}

body.bg-error::before {
    opacity: 0.3;
}

/* 确保背景图片显示 */
@media (orientation: portrait) {
    body::before {
        background-image: var(--bg-image, url('https://api.easonsaid.cn/portrait_images.php'));
    }
}

@media (orientation: landscape) {
    body::before {
        background-image: var(--bg-image, url('https://api.easonsaid.cn/landscape_images.php'));
    }
}

.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
}

/* 顶栏导航样式 - 移除底色 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    z-index: 1000;
    padding: 0 20px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px; /* 减少高度 */
}

.nav-logo {
    font-size: 1.1rem; /* 稍微减小字体 */
    font-weight: 700;
    color: white;
    text-decoration: none;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 25px; /* 减小间距 */
}

.nav-item {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem; /* 稍微减小字体 */
    padding: 6px 0;
    transition: color 0.3s ease;
    cursor: pointer;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    /* button 重置样式 */
    background: none;
    border: none;
    font-family: inherit;
    line-height: inherit;
}

.nav-link:hover {
    color: #3498db;
}

/* GitHub 链接 - 和 button 完全对齐 */
.nav-github {
    display: inline-block;
    background: none;
    border: none;
    margin: 0;
    padding: 6px 0;
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.4;
    vertical-align: middle;
}

/* 汉堡菜单按钮 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    transition: all 0.3s ease;
    border-radius: 2px;
    box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background: white;
    border-radius: 16px;
    padding: 25px; /* 减小内边距 */
    max-width: 500px;
    width: 90%;
    height: auto; /* 根据内容自适应高度 */
    max-height: 85vh;
    max-height: 85dvh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal.wide .modal-content {
    max-width: 720px;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: #7f8c8d;
    transition: color 0.3s ease;
    background: transparent;
    border: none;
    padding: 0;
    line-height: 1;
}

.close:hover {
    color: #2c3e50;
}

#modal-body h2 {
    color: #2c3e50;
    margin-bottom: 15px; /* 减小间距 */
    font-size: 1.4rem; /* 稍微减小字体 */
}

#modal-body p {
    color: #5a6c7d;
    line-height: 1.6;
    margin-bottom: 12px; /* 减小间距 */
    font-size: 0.95rem; /* 稍微减小字体 */
}

#modal-body strong {
    color: #2c3e50;
}

/* 模态框超链接样式 */
#modal-body a {
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
    padding-bottom: 1px;
}

#modal-body a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    border-radius: 1px;
    transition: width 0.3s ease;
}

#modal-body a:hover {
    color: #2980b9;
}

#modal-body a:hover::after {
    width: 100%;
}

#modal-body a:visited {
    color: #8e44ad;
}

#modal-body a:visited:hover {
    color: #7d3c98;
}

#modal-body a:visited::after {
    background: linear-gradient(90deg, #8e44ad, #3498db);
}

.container {
    max-width: 750px; /* 减小最大宽度 */
    margin: 60px auto 0; /* 减小顶部间距 */
    height: calc(100vh - 90px);
    height: calc(100dvh - 90px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 20px; /* 减小间距 */
    padding: 15px 0; /* 减小内边距 */
    flex-shrink: 0;
}

.title {
    font-size: 2.5rem; /* 减小字体 */
    font-weight: 700;
    color: white;
    margin-bottom: 8px; /* 减小间距 */
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.subtitle {
    font-size: 1.2rem; /* 稍微减小字体 */
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.4; /* 调整行高 */
}

/* 主内容区域 */
.main-content {
    flex: 1;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 0; /* 添加内边距 */
    overflow-y: auto;
}

.card {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 14px; /* 稍微减小圆角 */
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12); /* 减小阴影 */
    padding: 20px; /* 减小内边距 */
    width: 100%;
    max-width: 85%; /* 减小最大宽度 */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transform: translateZ(0);
}

.card:hover {
    transform: translateY(-2px); /* 减小悬停位移 */
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px; /* 减小间距 */
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: 10px; /* 减小内边距 */
}

.card-header h2 {
    font-size: 1.3rem; /* 减小字体 */
    color: #2c3e50;
    font-weight: 600;
}

.refresh-btn {
    background: rgba(52, 152, 219, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 36px; /* 稍微减小 */
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12); /* 减小阴影 */
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent; /* 移除移动端点击高亮 */
}

.refresh-btn:hover {
    background: rgba(41, 128, 185, 0.9);
    transform: rotate(90deg);
}

.refresh-btn:active {
    transform: rotate(180deg);
}

.refresh-btn:focus-visible,
.close:focus-visible {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

/* 刷新按钮动画 */
.refresh-btn.refreshing {
    animation: spin 0.6s ease-in-out;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 内容区域 */
.content-area {
    min-height: 150px; /* 减小最小高度 */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.loading {
    text-align: center;
    color: #7f8c8d;
}

.spinner {
    border: 4px solid rgba(52, 152, 219, 0.3);
    border-radius: 50%;
    border-top: 4px solid #3498db;
    width: 35px; /* 稍微减小 */
    height: 35px;
    animation: spin 1s linear infinite;
    margin: 0 auto 12px; /* 减小间距 */
}

.content {
    text-align: center;
    position: relative;
    width: 100%;
}

.content-text {
    font-size: 1.2rem; /* 减小字体 */
    line-height: 1.6; /* 调整行高 */
    color: #2c3e50;
    margin: 12px 0; /* 减小间距 */
    position: relative;
    padding: 0 12px; /* 减小内边距 */
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

.quote-mark {
    font-size: 3rem; /* 减小字体 */
    color: #3498db;
    opacity: 0.3;
    position: absolute;
    line-height: 1;
    font-family: serif;
}

.quote-mark.start {
    top: -12px; /* 调整位置 */
    left: 0;
}

.quote-mark.end {
    bottom: -30px; /* 调整位置 */
    right: 0;
}

.content-source {
    margin-top: 25px; /* 减小间距 */
    font-size: 0.9rem; /* 稍微减小字体 */
    color: #7f8c8d;
    font-style: italic;
}

.error {
    text-align: center;
    color: #e74c3c;
    font-size: 0.9rem; /* 稍微减小字体 */
}

.hidden {
    display: none;
}

/* 页脚样式 */
.footer {
    text-align: center;
    margin-top: auto;
    padding: 12px 0; /* 减小内边距 */
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8rem; /* 稍微减小字体 */
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
}

.footer p {
    margin: 0;
    line-height: 1.4; /* 调整行高 */
}

.footer a {
    color: rgba(255, 255, 255, 0.95);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    padding: 2px 4px;
    border-radius: 4px;
}

.footer a:hover {
    color: #3498db;
    text-shadow: 0 0 8px rgba(52, 152, 219, 0.5);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    transition: width 0.3s ease;
}

.footer a:hover::after {
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 10px 15px;
    }
    
    /* 移动端导航菜单 - 毛玻璃模态框形式 */
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: -100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(20px) saturate(180%);
        -webkit-backdrop-filter: blur(20px) saturate(180%);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 35px 20px 15px; /* 减小内边距 */
        gap: 0;
        transition: top 0.3s ease;
        border-radius: 0 0 16px 16px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        max-height: 55vh; /* 稍微减小高度 */
        overflow-y: auto;
        border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .nav-menu.active {
        top: 50px;
    }

    .nav-item {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }

    .nav-link {
        display: block;
        padding: 18px; /* 稍微减小 */
        font-size: 1rem; /* 稍微减小 */
        width: 100%;
        color: #2c3e50;
        text-shadow: none;
        transition: all 0.3s ease;
        border-radius: 8px;
        margin: 2px 0;
    }

    .nav-link:hover {
        color: #3498db;
        background: rgba(52, 152, 219, 0.15);
        transform: translateY(-1px);
    }

    /* 汉堡菜单动画 */
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .container {
        margin-top: 60px; /* 减小间距 */
        height: calc(100vh - 80px);
        height: calc(100dvh - 80px);
    }
    
    .title {
        font-size: 1.8rem; /* 稍微减小 */
    }
    
    .card {
        padding: 18px; /* 稍微减小 */
        max-width: 92%; /* 稍微调整 */
        backdrop-filter: none;
    }
    
    .content-text {
        font-size: 1.1rem; /* 稍微减小 */
    }
    
    .quote-mark {
        font-size: 2.8rem; /* 稍微减小 */
    }
    
    .card-header h2 {
        font-size: 1.2rem; /* 稍微减小 */
    }
    
    .footer {
        font-size: 0.75rem; /* 稍微减小 */
        padding: 10px 0; /* 减小内边距 */
    }
    
    .footer a {
        padding: 1px 3px;
    }
    
    /* 移动端模态框自适应 - 使用更多屏幕空间 */
    .modal-content {
        max-height: 92vh;
        max-height: 92dvh;
        width: 92%;
        padding: 20px;
        border-radius: 14px;
    }
    
    #modal-body h2 {
        margin-bottom: 12px;
        font-size: 1.3rem;
    }
    
    #modal-body p {
        margin-bottom: 8px;
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

@media (max-width: 480px) {
    body {
        padding: 8px 10px;
    }
    
    .navbar {
        padding: 0 12px;
    }
    
    .title {
        font-size: 1.6rem;
    }
    
    .card {
        padding: 15px;
    }
    
    .content-text {
        font-size: 1.05rem;
        padding: 0 10px;
    }
    
    .quote-mark {
        font-size: 2.5rem;
    }
    
    .quote-mark.start {
        top: -10px;
    }
    
    .quote-mark.end {
        bottom: -25px;
    }
    
    .card-header {
        flex-direction: column;
        gap: 8px; /* 减小间距 */
    }
    
    .card-header h2 {
        font-size: 1.1rem;
    }
    
    .footer {
        font-size: 0.7rem;
    }
    
    .container {
        height: calc(100vh - 76px);
        height: calc(100dvh - 76px);
    }
    
    .footer a {
        display: inline-block;
        margin-top: 2px;
    }
    
    .modal-content {
        padding: 16px;
        max-height: 94vh;
        max-height: 94dvh;
        border-radius: 12px;
    }
    
    #modal-body h2 {
        margin-bottom: 10px;
        font-size: 1.2rem;
    }
    
    #modal-body p {
        margin-bottom: 6px;
        font-size: 0.85rem;
        line-height: 1.45;
    }
    
    /* 移动端菜单高度调整 */
    .nav-menu {
        max-height: 50vh;
        background: rgba(255, 255, 255, 0.8);
        backdrop-filter: blur(15px) saturate(160%);
        -webkit-backdrop-filter: blur(15px) saturate(160%);
    }
}

/* 减少动画和特效的媒体查询 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .card {
        backdrop-filter: none;
    }
    
    .refresh-btn.refreshing {
        animation: none;
    }
    
    .footer a:hover {
        transform: none;
    }
    
    .footer a::after {
        display: none;
    }
    
    .nav-link {
        transition: none;
    }
    
    .nav-menu {
        transition: none;
    }
    
    .hamburger span {
        transition: none;
    }
}

/* 短屏幕设备优化（确保页脚始终可见） */
@media (max-height: 650px) {
    .header {
        margin-bottom: 10px;
        padding: 8px 0;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .content-area {
        min-height: 100px;
    }
    
    .card {
        padding: 12px;
    }
    
    .footer {
        padding: 8px 0;
        font-size: 0.7rem;
    }
}

/* 内容操作按钮 */
.content-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 18px;
}
.action-btn {
    background: rgba(52, 152, 219, 0.9);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.3s ease;
}
.action-btn:hover {
    background: rgba(41, 128, 185, 0.9);
}

/* 投稿表单 */
.field {
    margin-bottom: 14px;
    text-align: left;
}
.field label {
    display: block;
    font-size: 0.9rem;
    color: #2c3e50;
    margin-bottom: 6px;
    font-weight: 600;
}
.field input,
.field textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #d5dbe0;
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    box-sizing: border-box;
}
.field textarea {
    min-height: 80px;
    resize: vertical;
}
.captcha-flex {
    display: flex;
    align-items: center;
    gap: 10px;
}
.captcha-flex img {
    height: 36px;
    border: 1px solid #d5dbe0;
    border-radius: 4px;
    cursor: pointer;
}
.captcha-flex input {
    width: 80px;
}
.submit-msg {
    font-size: 0.9rem;
    min-height: 20px;
    margin-bottom: 10px;
}
.submit-btn {
    width: 100%;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px;
    font-size: 1rem;
    cursor: pointer;
}
.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 热门榜单 */
.hot-loading {
    text-align: center;
    color: #7f8c8d;
    padding: 20px 0;
}
.hot-body h3 {
    font-size: 1rem;
    color: #2c3e50;
    margin: 16px 0 8px;
}
.hot-list {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: left;
}
.hot-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}
.hot-list .rank {
    flex-shrink: 0;
    margin-top: 1px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    background: rgba(52, 152, 219, 0.12);
    color: #2980b9;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.82rem;
}
.hot-item-body {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
    flex: 1;
}
.hot-lyric {
    color: #2c3e50;
    font-size: 0.95rem;
    line-height: 1.5;
    word-break: break-word;
}
.hot-meta {
    color: #7f8c8d;
    font-size: 0.82rem;
    line-height: 1.5;
    word-break: break-word;
}

/* toast */
#toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(0, 0, 0, 0.78);
    color: white;
    padding: 10px 18px;
    border-radius: 24px;
    font-size: 0.9rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 9999;
}
#toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* 投稿人“等 N 人”可点击 */
.contrib-more {
    color: #3498db;
    cursor: pointer;
    text-decoration: underline;
}
.contrib-more:hover {
    color: #2980b9;
}

/* 完整投稿人列表弹窗 */
.contrib-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 55vh;
    overflow-y: auto;
    text-align: left;
}
.contrib-list li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #2c3e50;
    font-size: 0.95rem;
}