/* --- 变量定义 --- */
:root {
    /* 品牌色 */
    --brand-blue: #2196F3;

    /* 浅色模式 */
    --lm-bg: #f0f2f5;
    --lm-surface: #ffffff;
    --lm-text-primary: #1f2937;
    --lm-text-secondary: #6b7280;
    --lm-nav-glass-bg: rgba(240, 242, 245, 0.6);
    --lm-card-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    --lm-card-hover-shadow: 0 12px 24px rgba(33, 150, 243, 0.2);
    --lm-button-glass-bg: rgba(227, 242, 253, 0.7);
    --lm-button-border: rgba(33, 150, 243, 0.3);
    --lm-logo-accent: #FFFFFF;
    --lm-region-title-color: #374151; /* 区域标题颜色 - 浅色 */
    --lm-region-border: rgba(0, 0, 0, 0.05); /* 区域间可选分隔线 */

    /* 深色模式 */
    --dm-bg: #0d1117;
    --dm-surface: #161b22;
    --dm-text-primary: #e0e6f1;
    --dm-text-secondary: #8b949e;
    --dm-nav-glass-bg: rgba(13, 17, 23, 0.6);
    --dm-card-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    --dm-card-hover-shadow: 0 12px 24px rgba(33, 150, 243, 0.3);
    --dm-button-glass-bg: rgba(33, 150, 243, 0.2);
    --dm-button-border: rgba(33, 150, 243, 0.5);
    --dm-logo-accent: #0d1117;
    --dm-region-title-color: #c9d1d9; /* 区域标题颜色 - 深色 */
    --dm-region-border: rgba(255, 255, 255, 0.1); /* 区域间可选分隔线 */


    /* 通用 */
    --font-family: 'Inter', sans-serif;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --transition-duration: 0.3s;
    --glass-blur: 8px;
}

/* --- 主题应用 --- */
body {
    background-color: var(--lm-bg);
    color: var(--lm-text-primary);
    font-family: var(--font-family);
    margin: 0;
    padding-top: 80px;
    transition: background-color var(--transition-duration) ease, color var(--transition-duration) ease;
}

body.dark-mode {
    background-color: var(--dm-bg);
    color: var(--dm-text-primary);
}

body.dark-mode .navbar {
    background-color: var(--dm-nav-glass-bg);
    border-bottom: 1px solid rgba(136, 150, 170, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
body.dark-mode .logo .brand-name {
    color: var(--dm-text-primary);
}
body.dark-mode .logo svg path {
    fill: var(--dm-logo-accent);
}

body.dark-mode .nav-card {
    background-color: var(--dm-surface);
    box-shadow: var(--dm-card-shadow);
}
body.dark-mode .nav-card:hover {
    box-shadow: var(--dm-card-hover-shadow);
}
body.dark-mode .card-title {
    color: var(--dm-text-primary); /* 卡片标题深色模式下也调整 */
}
body.dark-mode .card-description {
    color: var(--dm-text-secondary);
}
body.dark-mode .card-button {
    background-color: var(--dm-button-glass-bg);
    color: var(--brand-blue);
    border: 1px solid var(--dm-button-border);
}
body.dark-mode .card-button:hover {
    background-color: rgba(33, 150, 243, 0.3);
    box-shadow: 0 0 15px rgba(33, 150, 243, 0.5);
}
body.dark-mode .region-title {
    color: var(--dm-region-title-color);
    border-bottom-color: var(--dm-region-border);
}


/* --- 顶部导航栏 --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    padding: 0 20px;
    background-color: var(--lm-nav-glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: background-color var(--transition-duration) ease, border-bottom var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}
.logo svg path {
    fill: var(--lm-logo-accent);
    transition: fill var(--transition-duration) ease;
}
.logo .brand-name {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--lm-text-primary);
    margin-left: 12px;
    transition: color var(--transition-duration) ease;
}

.theme-toggle-button {
    background-color: transparent;
    border: none;
    color: var(--brand-blue);
    cursor: pointer;
    font-size: 1.5rem;
    padding: 8px;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s ease-out, background-color 0.2s ease;
}
.theme-toggle-button:hover {
    background-color: rgba(33, 150, 243, 0.1);
}
.theme-toggle-button:active {
    transform: scale(0.9);
}
.icon-sun, .icon-moon {
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.icon-sun { display: block !important; } /* 默认显示太阳图标 */
.icon-moon { display: none !important; } /* 默认隐藏月亮图标 */

body.dark-mode .icon-sun { display: none !important; } /* 深色模式隐藏太阳图标 */
body.dark-mode .icon-moon { display: block !important; } /* 深色模式显示月亮图标 */

/* --- 主要内容区域 --- */
.main-content {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

/* --- 网站区域 --- */
.site-region {
    margin-bottom: 40px; /* 区域之间的间距 */
}
.site-region:last-child {
    margin-bottom: 0;
}

.region-title {
    font-size: 1.8rem; /* 区域标题字体稍大 */
    font-weight: 600;
    color: var(--lm-region-title-color);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--lm-region-border); /* 区域标题下的分隔线 */
    transition: color var(--transition-duration) ease, border-bottom-color var(--transition-duration) ease;
}


/* --- 网站导航卡片网格 --- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.nav-card {
    background-color: var(--lm-surface);
    border-radius: var(--border-radius-md);
    padding: 24px;
    box-shadow: var(--lm-card-shadow);
    transition: transform var(--transition-duration) ease, box-shadow var(--transition-duration) ease, background-color var(--transition-duration) ease;
    display: flex;
    flex-direction: column;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--lm-card-hover-shadow);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.card-icon {
    width: 50px;
    height: 50px;
    margin-right: 16px;
    flex-shrink: 0; /* 防止SVG图标在flex容器中缩小 */
    /* 移除 border-radius 和 object-fit，因为 SVG 不需要 */
    /* 移除 box-shadow，因为 SVG 通常不需要 */ 
}

.card-title { /* 注意这里HTML改为了h3 */
    font-size: 1.3rem; /* 卡片标题大小调整 */
    font-weight: 600;
    color: var(--brand-blue);
    margin: 0;
    line-height: 1.3;
    transition: color var(--transition-duration) ease;
}
/* 卡片标题在深色模式下的颜色已在 body.dark-mode .card-title 中处理 */


.card-description {
    font-size: 0.9rem;
    color: var(--lm-text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
    transition: color var(--transition-duration) ease;
}

.card-button {
    display: inline-block;
    background-color: var(--lm-button-glass-bg);
    color: var(--brand-blue);
    font-weight: 500;
    text-decoration: none;
    padding: 10px 18px; /* 按钮padding调整 */
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--lm-button-border);
    text-align: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: background-color var(--transition-duration) ease, box-shadow var(--transition-duration) ease, transform var(--transition-duration) ease, color var(--transition-duration) ease;
}

.card-button:hover {
    background-color: rgba(33, 150, 243, 0.2);
    box-shadow: 0 0 12px rgba(33, 150, 243, 0.3);
    transform: translateY(-2px);
}

/* --- 响应式设计 --- */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    .navbar {
        height: 50px;
        padding: 0 15px;
    }
    .logo .brand-name {
        font-size: 1.2rem;
    }
    .logo svg {
        width: 30px;
        height: 30px;
    }
    .theme-toggle-button {
        font-size: 1.3rem;
        width: 40px;
        height: 40px;
    }

    .main-content {
        margin: 15px auto;
        padding: 15px;
    }
    .site-region {
        margin-bottom: 30px;
    }
    .region-title {
        font-size: 1.5rem;
        margin-bottom: 20px;
        padding-bottom: 10px;
    }
    .cards-grid {
        grid-template-columns: 1fr; /* 手机上单列显示 */
        gap: 20px;
    }
    .nav-card {
        padding: 20px;
    }
    .card-title {
        font-size: 1.2rem;
    }
    .card-description {
        font-size: 0.85rem;
    }
    .card-button {
        padding: 10px 16px;
    }
}

@media (max-width: 480px) {
    .logo .brand-name {
       display: none;
    }
     .navbar-content {
        justify-content: space-between;
    }
    .region-title {
        font-size: 1.3rem;
    }
    .card-logo {
        width: 40px;
        height: 40px;
        margin-right: 12px;
    }
}

/* --- Tabs 容器样式 --- */
.tabs-container {
    margin-top: 30px;
    background-color: var(--lm-surface);
    border-radius: var(--border-radius-md);
    box-shadow: var(--lm-card-shadow);
    padding: 20px;
    transition: background-color var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

body.dark-mode .tabs-container {
    background-color: var(--dm-surface);
    box-shadow: var(--dm-card-shadow);
}

.tab-list {
    display: flex;
    flex-wrap: wrap; /* 允许tab换行 */
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--lm-region-border);
    padding-bottom: 10px;
    transition: border-bottom-color var(--transition-duration) ease;
}

body.dark-mode .tab-list {
    border-bottom: 1px solid var(--dm-region-border);
}

.tab-item {
    background-color: var(--lm-button-glass-bg);
    color: var(--brand-blue);
    border: 1px solid var(--lm-button-border);
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: background-color var(--transition-duration) ease, border-color var(--transition-duration) ease, color var(--transition-duration) ease, transform 0.2s ease;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

body.dark-mode .tab-item {
    background-color: var(--dm-button-glass-bg);
    color: var(--dm-text-primary);
    border: 1px solid var(--dm-button-border);
}

.tab-item:hover {
    background-color: rgba(33, 150, 243, 0.2);
    transform: translateY(-2px);
}

body.dark-mode .tab-item:hover {
    background-color: rgba(33, 150, 243, 0.3);
}

.tab-item.active {
    background-color: var(--brand-blue);
    color: #ffffff;
    border-color: var(--brand-blue);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
    transform: translateY(-2px);
}

body.dark-mode .tab-item.active {
    background-color: var(--brand-blue);
    color: #ffffff;
    border-color: var(--brand-blue);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* --- 话术卡片样式 (继承 nav-card) --- */
.speech-card {
    position: relative; /* 用于定位复制按钮 */
    padding: 24px; /* 恢复nav-card的padding，复制按钮通过absolute定位 */
}

.speech-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center; /* 标题和按钮居中对齐 */
    margin-bottom: 10px; /* 标题和内容之间的间距 */
}

.speech-card .card-title {
    font-size: 1.2rem; /* 话术卡片标题稍小 */
    margin-right: 10px; /* 标题和按钮之间的间距 */
    flex-grow: 1;
}

.speech-card .speech-text {
    font-size: 1rem;
    color: var(--lm-text-primary);
    line-height: 1.8;
    margin-bottom: 0; /* 移除底部多余间距 */
    transition: color var(--transition-duration) ease;
}

body.dark-mode .speech-card .speech-text {
    color: var(--dm-text-primary);
}

/* 商品图片样式 */
.product-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius-sm);
    margin-top: 10px;
}

.copy-button {
    position: absolute; /* 绝对定位 */
    top: 15px; /* 距离顶部 */
    right: 15px; /* 距离右侧 */
    background-color: transparent;
    border: none;
    color: var(--brand-blue);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
    z-index: 1; /* 确保在卡片内容之上 */
}

body.dark-mode .copy-button {
    color: var(--dm-text-secondary); /* 深色模式下图标颜色 */
}

.copy-button:hover {
    background-color: rgba(33, 150, 243, 0.1);
    transform: scale(1.1);
}

body.dark-mode .copy-button:hover {
    background-color: rgba(33, 150, 243, 0.2);
    color: var(--brand-blue); /* 深色模式下hover时图标颜色 */
}

.copy-button:active {
    transform: scale(0.9);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .tabs-container {
        padding: 15px;
    }
    .tab-list {
        gap: 8px;
        margin-bottom: 15px;
    }
    .tab-item {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    .speech-card .card-title {
        font-size: 1.1rem;
    }
    .speech-card .speech-text {
        font-size: 0.95rem;
    }
    .copy-button {
        font-size: 1rem;
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 480px) {
    .tabs-container {
        padding: 10px;
    }
    .tab-list {
        flex-direction: column; /* 手机上tab垂直排列 */
        align-items: stretch; /* 宽度拉伸 */
        gap: 6px;
    }
    .tab-item {
        width: auto; /* 适应内容 */
        text-align: center;
    }
    .speech-card .card-header {
        flex-direction: column; /* 手机上标题和按钮垂直排列 */
        align-items: flex-start;
    }
    .speech-card .card-title {
        margin-bottom: 5px;
    }
    .copy-button {
        position: static; /* 在小屏幕上恢复静态定位，使其在flex流中 */
        align-self: flex-end; /* 按钮靠右对齐 */
        margin-top: 0; /* 移除负边距 */
    }
}

/* --- 为不同区域添加独特样式 --- */
#region-weibo-user {
    background-color: rgba(33, 150, 243, 0.05);
    border-top: 4px solid var(--brand-blue);
    padding: 20px;
    border-radius: var(--border-radius-md);
}

#region-weibo-admin {
    background-color: rgba(76, 175, 80, 0.05);
    border-top: 4px solid #4CAF50;
    padding: 20px;
    border-radius: var(--border-radius-md);
}

#region-tieba {
    background-color: rgba(255, 152, 0, 0.05);
    border-top: 4px solid #FF9800;
    padding: 20px;
    border-radius: var(--border-radius-md);
}

#region-tools {
    background-color: rgba(156, 39, 176, 0.05);
    border-top: 4px solid #9C27B0;
    padding: 20px;
    border-radius: var(--border-radius-md);
}

body.dark-mode #region-weibo-user {
    background-color: rgba(33, 150, 243, 0.1);
}

body.dark-mode #region-weibo-admin {
    background-color: rgba(76, 175, 80, 0.1);
}

body.dark-mode #region-tieba {
    background-color: rgba(255, 152, 0, 0.1);
}

body.dark-mode #region-tools {
    background-color: rgba(156, 39, 176, 0.1);
}

/* --- 区域内元素颜色适配 --- */

/* 微博-管理端 (绿色主题) */
#region-weibo-admin .card-title {
    color: #4CAF50;
}
#region-weibo-admin .card-button {
    color: #4CAF50;
    border-color: rgba(76, 175, 80, 0.5);
    background-color: rgba(76, 175, 80, 0.1);
}
#region-weibo-admin .card-button:hover {
    background-color: rgba(76, 175, 80, 0.2);
    box-shadow: 0 0 12px rgba(76, 175, 80, 0.3);
}
body.dark-mode #region-weibo-admin .card-title {
    color: #81c784; /* 深色模式下稍亮的绿色 */
}
body.dark-mode #region-weibo-admin .card-button {
    color: #81c784;
    border-color: rgba(129, 199, 132, 0.5);
    background-color: rgba(129, 199, 132, 0.2);
}
body.dark-mode #region-weibo-admin .card-button:hover {
    background-color: rgba(129, 199, 132, 0.3);
}


/* 贴吧 (橙色主题) */
#region-tieba .card-title {
    color: #FF9800;
}
#region-tieba .card-button {
    color: #FF9800;
    border-color: rgba(255, 152, 0, 0.5);
    background-color: rgba(255, 152, 0, 0.1);
}
#region-tieba .card-button:hover {
    background-color: rgba(255, 152, 0, 0.2);
    box-shadow: 0 0 12px rgba(255, 152, 0, 0.3);
}
body.dark-mode #region-tieba .card-title {
    color: #ffb74d; /* 深色模式下稍亮的橙色 */
}
body.dark-mode #region-tieba .card-button {
    color: #ffb74d;
    border-color: rgba(255, 183, 77, 0.5);
    background-color: rgba(255, 183, 77, 0.2);
}
body.dark-mode #region-tieba .card-button:hover {
    background-color: rgba(255, 183, 77, 0.3);
}


/* 便捷工具 (紫色主题) */
#region-tools .card-title {
    color: #9C27B0;
}
#region-tools .card-button {
    color: #9C27B0;
    border-color: rgba(156, 39, 176, 0.5);
    background-color: rgba(156, 39, 176, 0.1);
}
#region-tools .card-button:hover {
    background-color: rgba(156, 39, 176, 0.2);
    box-shadow: 0 0 12px rgba(156, 39, 176, 0.3);
}
body.dark-mode #region-tools .card-title {
    color: #ba68c8; /* 深色模式下稍亮的紫色 */
}
body.dark-mode #region-tools .card-button {
    color: #ba68c8;
    border-color: rgba(186, 104, 200, 0.5);
    background-color: rgba(186, 104, 200, 0.2);
}
body.dark-mode #region-tools .card-button:hover {
    background-color: rgba(186, 104, 200, 0.3);
}

/* --- 突出显示卡片 --- */
.nav-card-highlight {
    border: 2px solid var(--brand-blue);
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.4), var(--lm-card-shadow);
}

.nav-card-highlight:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(33, 150, 243, 0.6), var(--lm-card-hover-shadow);
}

body.dark-mode .nav-card-highlight {
    border-color: var(--brand-blue);
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.5), var(--dm-card-shadow);
}

body.dark-mode .nav-card-highlight:hover {
    box-shadow: 0 0 25px rgba(33, 150, 243, 0.7), var(--dm-card-hover-shadow);
}