/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", "Microsoft Yahei", sans-serif;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* 亮色模式（默认） */
:root {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f9fafb;
    --text-primary: #1d2129;
    --text-secondary: #4E5969;
    --text-tertiary: #86909c;
    --border-primary: #e5e7eb;
    --border-secondary: #f0f2f5;
    --accent-primary: #165DFF;
    --accent-secondary: #36CFC9;
    --accent-tertiary: #722ED1;
    --warning: #FF7D00;
    --danger: #F53F3F;
    --success: #00B42A;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.05);
    --error-bg: #fff5f5;
    --error-border: #ffe3e3;
    --success-bg: #f0fff4;
    --success-border: #b7eb8f;
    /* 新增：日间模式按钮/表头配色 */
    --btn-day-bg-primary: #e8f3ff;
    --btn-day-bg-secondary: #e6fffa;
    --btn-day-bg-tertiary: #f9e8ff;
    --btn-day-bg-warning: #fff7e6;
    --btn-day-bg-danger: #fff2f2;
    --btn-day-text: #1d2129;
    --table-header-day-bg: #e8f3ff;
    --table-header-day-text: #1d2129;
    /* 新增：夜间模式按钮/表头配色 */
    --btn-night-bg-primary: #1e3a8a;
    --btn-night-bg-secondary: #0f766e;
    --btn-night-bg-tertiary: #5b21b6;
    --btn-night-bg-warning: #9a3412;
    --btn-night-bg-danger: #7f1d1d;
    --btn-night-text: #ffffff;
    --table-header-night-bg: #1e3a8a;
    --table-header-night-text: #ffffff;
}

/* 暗色模式 */
[data-theme="dark"] {
    --bg-primary: #18181b;
    --bg-secondary: #27272a;
    --bg-tertiary: #3f3f46;
    --text-primary: #f4f4f5;
    --text-secondary: #d4d4d8;
    --text-tertiary: #a1a1aa;
    --border-primary: #52525b;
    --border-secondary: #3f3f46;
    --accent-primary: #3b82f6;
    --accent-secondary: #22d3ee;
    --accent-tertiary: #a855f7;
    --warning: #f97316;
    --danger: #ef4444;
    --success: #22c55e;
    --shadow: 0 4px 20px rgba(0,0,0,0.2);
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.15);
    --error-bg: #3b1616;
    --error-border: #7f1d1d;
    --success-bg: #163b16;
    --success-border: #166534;
}

body {
    background-color: var(--bg-primary);
    padding: 20px 0;
}

/* 页面容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: var(--shadow);
    position: relative;
}

/* 日夜切换按钮 */
.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    z-index: 10;
}

.theme-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.3s ease;
}

.theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: block;
}

/* 标题 */
h1 {
    text-align: center;
    color: var(--accent-primary);
    margin-bottom: 30px;
    font-weight: 600;
    font-size: 28px;
    position: relative;
    padding-bottom: 15px;
}

h1:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent-primary);
    border-radius: 2px;
}

/* 输入区域 */
.input-area {
    margin-bottom: 30px;
    background-color: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-secondary);
}

.input-area label {
    display: block;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 输入行：60%+10%+30%三列布局 */
.input-row {
    display: grid;
    grid-template-columns: 60% 10% 30%;
    align-items: start;
    gap: 15px;
}

/* 输入容器：固定高度 */
.input-container {
    position: relative;
    display: flex;
    width: 100%;
    height: 250px;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-secondary);
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.input-container:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

/* 行号样式 */
.line-numbers {
    width: 45px;
    height: 100%;
    padding: 12px 8px;
    background-color: var(--bg-tertiary);
    color: var(--text-tertiary);
    font-size: 14px;
    line-height: 1.5;
    text-align: right;
    user-select: none;
    border-right: 1px solid var(--border-primary);
    overflow: hidden;
    white-space: pre;
}

/* 可编辑输入区域 */
.ip-input {
    flex: 1;
    height: 100%;
    padding: 12px;
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    overflow-y: auto;
    outline: none;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--text-primary);
    background-color: transparent;
    border: none;
}

/* 占位符样式 */
.ip-input:empty:before {
    content: attr(placeholder);
    color: var(--text-tertiary);
    pointer-events: none;
}

/* 按钮组：核心优化 - 固定高度+精确计算 */
.btn-group {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 250px;
    /* 关键：使用padding替代gap，避免间距占用flex空间 */
    padding: 6px 0;
}

/* 按钮样式 - 绝对均匀分布的核心实现 */
.btn-item {
    /* 计算逻辑：(250 - 6*2) / 5 = 47.6px （总高度-上下padding）/按钮数 */
    height: 47.6px;
    margin: 6px 0; /* 替代gap，保证间距均匀 */
    padding: 0 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    /* 确保文字垂直居中的关键 */
    line-height: 1;
}

/* 导入按钮专属样式 */
.import-btn {
    position: relative;
    overflow: hidden;
    /* 移除line-height，让flex布局控制垂直居中 */
    /* 确保flex布局生效 */
    display: flex;
    align-items: center;
    justify-content: center;
}

.import-btn #importFile {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 1;
}

.import-btn svg, .import-btn span {
    position: relative;
    z-index: 2;
    /* 移除vertical-align，让flex布局控制对齐 */
}

.import-btn svg {
    /* 移除导致偏移的margin-bottom */
    margin-bottom: 0;
}

/* 按钮伪元素动画 */
.btn-item:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: all 0.4s ease;
}

.btn-item:hover:before {
    left: 100%;
}

/* 按钮颜色设置 - 优化：日间/夜间模式配色 */
.import-btn { 
    background-color: var(--btn-day-bg-secondary); 
    color: var(--btn-day-text); 
    /* 确保 flex 布局和居中属性生效 */
    display: flex;
    align-items: center;
    justify-content: center;
}
.query-btn { 
    background-color: var(--btn-day-bg-primary); 
    color: var(--btn-day-text); 
}
.stop-btn { 
    background-color: var(--btn-day-bg-warning); 
    color: var(--btn-day-text); 
    display: none; /* 默认隐藏 */
    height: 47.6px; /* 确保隐藏时高度仍占位 */
}
.clear-btn { 
    background-color: var(--btn-day-bg-danger); 
    color: var(--btn-day-text); 
}
.export-btn { 
    background-color: var(--btn-day-bg-tertiary); 
    color: var(--btn-day-text); 
}

/* 暗色模式按钮配色 */
[data-theme="dark"] .import-btn { 
    background-color: var(--btn-night-bg-secondary); 
    color: var(--btn-night-text); 
}
[data-theme="dark"] .query-btn { 
    background-color: var(--btn-night-bg-primary); 
    color: var(--btn-night-text); 
}
[data-theme="dark"] .stop-btn { 
    background-color: var(--btn-night-bg-warning); 
    color: var(--btn-night-text); 
}
[data-theme="dark"] .clear-btn { 
    background-color: var(--btn-night-bg-danger); 
    color: var(--btn-night-text); 
}
[data-theme="dark"] .export-btn { 
    background-color: var(--btn-night-bg-tertiary); 
    color: var(--btn-night-text); 
}

/* 按钮悬停效果 */
.btn-item:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.import-btn:hover { background-color: #2db9b3; color: white; }
.query-btn:hover { background-color: #0e4bdb; color: white; }
.stop-btn:hover { background-color: #e06c00; color: white; }
.clear-btn:hover { background-color: #e03131; color: white; }
.export-btn:hover { background-color: #6226b3; color: white; }

/* 暗色模式下按钮悬停效果调整 */
[data-theme="dark"] .import-btn:hover { background-color: #06b6d4; }
[data-theme="dark"] .query-btn:hover { background-color: #2563eb; }
[data-theme="dark"] .stop-btn:hover { background-color: #ea580c; }
[data-theme="dark"] .clear-btn:hover { background-color: #dc2626; }
[data-theme="dark"] .export-btn:hover { background-color: #9333ea; }

/* 按钮点击效果 */
.btn-item:active {
    transform: translateY(0);
    box-shadow: none;
}

/* 隐藏文件输入 */
#importFile { display: none; }

/* 输出区域 */
.output-area {
    margin-top: 30px;
}

/* 表格样式：调整宽度，与页面协调 */
table {
    width: 100%; /* 100%容器宽度，与输入区域一致 */
    margin-left: 0;
    margin-right: 0;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-secondary);
    font-size: 14px;
    color: var(--text-primary);
}

/* 表格表头样式 - 优化：日间/夜间模式配色 */
th {
    background-color: var(--table-header-day-bg);
    color: var(--table-header-day-text);
    font-weight: 500;
    position: sticky;
    top: 0;
    cursor: pointer;
    position: relative;
    padding-right: 24px;
    transition: background-color 0.2s ease;
}

/* 表头悬停效果 */
th:hover {
    background-color: rgba(22, 93, 255, 0.05);
}

/* 排序箭头样式 */
th::after {
    content: '';
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    opacity: 0.5;
    transition: all 0.2s ease;
}

/* 升序箭头 */
th.sort-asc::after {
    border-width: 0 4px 6px 4px;
    border-color: transparent transparent var(--text-primary) transparent;
    opacity: 1;
}

/* 降序箭头 */
th.sort-desc::after {
    border-width: 6px 4px 0 4px;
    border-color: var(--text-primary) transparent transparent transparent;
    opacity: 1;
}

[data-theme="dark"] th {
    background-color: var(--table-header-night-bg);
    color: var(--table-header-night-text);
}

tr:hover { 
    background-color: var(--bg-tertiary); 
    transition: background-color 0.2s ease;
}

tr:nth-child(even) { background-color: var(--bg-tertiary); }
tr.error-row { background-color: var(--error-bg); }
tr.error-row td { color: var(--danger); }

/* 序号列宽度 */
th:first-child, td:first-child { width: 70px; text-align: center; }

/* 提示信息样式 */
.loading, .progress, .error {
    padding: 14px 16px;
    border-radius: 6px;
    margin: 15px 0;
    text-align: center;
    display: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.loading { 
    color: var(--accent-primary); 
    background-color: rgba(22, 93, 255, 0.1);
    border: 1px solid rgba(22, 93, 255, 0.2);
}

.progress { 
    color: var(--accent-primary); 
    background-color: rgba(22, 93, 255, 0.1);
    border: 1px solid rgba(22, 93, 255, 0.2);
}

.error { 
    color: var(--danger); 
    background-color: var(--error-bg);
    border: 1px solid var(--error-border);
}

/* 响应式设计 */
/* 结果可视化按钮样式 */
.visualize-btn {
    background-color: var(--btn-day-bg-primary);
    color: var(--btn-day-text);
}

[data-theme="dark"] .visualize-btn {
    background-color: var(--btn-night-bg-primary);
    color: var(--btn-night-text);
}

.visualize-btn:hover {
    background-color: #0e4bdb;
    color: white;
}

[data-theme="dark"] .visualize-btn:hover {
    background-color: #2563eb;
}

/* 可视化弹窗样式 */
.visualization-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

/* 弹窗动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.visualization-modal-content {
    width: 90%;
    max-width: 1200px;
    height: 80%;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 弹窗头部 */
.visualization-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
    height: 70px;
}

.visualization-modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
}

/* 弹窗操作按钮 */
.modal-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-small {
    height: 36px;
    padding: 0 12px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

.btn-small:hover {
    background-color: var(--border-primary);
    transform: translateY(-1px);
}

.btn-small.close-btn:hover {
    background-color: var(--danger);
    color: white;
}

/* 弹窗内容区域 */
.visualization-modal-body {
    flex: 1;
    overflow: hidden;
    padding: 0;
    background-color: var(--bg-secondary);
    display: flex;
    flex-direction: column;
}

/* 地图容器 */
.map-container {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background-color: var(--bg-secondary);
    border-radius: 0;
    overflow: hidden;
    position: relative;
}

/* 地图弹窗样式 */
.popup-content {
    font-size: 14px;
    line-height: 1.5;
}

.popup-content h4 {
    margin: 0 0 10px 0;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
}

.popup-content p {
    margin: 5px 0;
    color: var(--text-secondary);
}

/* 全屏样式 */
.visualization-modal.fullscreen {
    background-color: transparent;
}

.visualization-modal.fullscreen .visualization-modal-content {
    width: 100%;
    height: 100%;
    border-radius: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
        margin: 10px;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
        top: 15px;
        right: 15px;
    }
    
    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }
    
    .input-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    /* 移动端按钮布局重构 */
    .btn-group {
        height: auto;
        flex-direction: row;
        flex-wrap: wrap;
        padding: 0;
        gap: 8px;
    }
    
    .btn-item {
        flex: 1 1 calc(50% - 4px);
        height: 50px;
        margin: 0;
        padding: 8px 12px;
        font-size: 14px;
    }
    
    .stop-btn {
        display: none !important; /* 移动端隐藏停止按钮 */
    }
    
    table {
        font-size: 13px;
    }
    
    th, td {
        padding: 10px 8px;
    }
    
    .output-area {
        overflow-x: auto;
    }
    
    /* 移动端弹窗样式 */
    .visualization-modal-content {
        width: 95%;
        height: 90%;
    }
    
    .visualization-modal-header {
        padding: 15px 20px;
        height: 60px;
    }
    
    .visualization-modal-header h3 {
        font-size: 16px;
    }
    
    .btn-small {
        height: 32px;
        padding: 0 8px;
        font-size: 13px;
    }
    
    .btn-small svg {
        width: 14px;
        height: 14px;
    }
}