/*
 * Theme Name: WebStack
 * Theme URI: https://www.iotheme.cn/
 * Description: 基础样式和工具类 - 重新整理的CSS架构
 */

/* ===== CSS重置和基础样式 ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    width: 100%;
    max-width: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* ===== 移动端基础修复 ===== */
@media (max-width: 768px) {
    html, body {
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
        position: relative !important;
    }
    
    /* 所有元素强制不溢出 */
    * {
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    /* 图片和媒体元素 */
    img, video, iframe, embed, object {
        max-width: 100% !important;
        height: auto !important;
    }
    
    /* 表格处理 */
    table {
        max-width: 100% !important;
        overflow-x: auto !important;
        display: block !important;
    }
    
    /* 相关文章图片在移动端也需要固定高度 */
    body.single-ai-project .related-article-image img,
    body.single-ai-tutorial .related-article-image img {
        height: 180px !important;
        object-fit: cover !important;
    }
}

/* ===== 基础元素样式 ===== */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 1rem 0;
    font-weight: 600;
    line-height: 1.2;
}

p {
    margin: 0 0 1rem 0;
    color: #555;
}

a {
    color: #1a1a1a;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover,
a:focus {
    color: #000000;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    border-style: none;
}

ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* ===== 表单元素样式 ===== */
input,
textarea,
select,
button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}

/* ===== 工具类 ===== */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 显示类 */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* Flexbox工具类 */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.justify-start { justify-content: flex-start !important; }
.justify-end { justify-content: flex-end !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-around { justify-content: space-around !important; }
.align-start { align-items: flex-start !important; }
.align-end { align-items: flex-end !important; }
.align-center { align-items: center !important; }
.align-baseline { align-items: baseline !important; }
.align-stretch { align-items: stretch !important; }

/* 间距工具类 */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mr-0 { margin-right: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }

.m-1 { margin: 0.25rem !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mr-1 { margin-right: 0.25rem !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.ml-1 { margin-left: 0.25rem !important; }

.m-2 { margin: 0.5rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mr-2 { margin-right: 0.5rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.ml-2 { margin-left: 0.5rem !important; }

.m-3 { margin: 1rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mr-3 { margin-right: 1rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.ml-3 { margin-left: 1rem !important; }

.m-4 { margin: 1.5rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mr-4 { margin-right: 1.5rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.ml-4 { margin-left: 1.5rem !important; }

.m-5 { margin: 3rem !important; }
.mt-5 { margin-top: 3rem !important; }
.mr-5 { margin-right: 3rem !important; }
.mb-5 { margin-bottom: 3rem !important; }
.ml-5 { margin-left: 3rem !important; }

/* 内边距工具类 */
.p-0 { padding: 0 !important; }
.pt-0 { padding-top: 0 !important; }
.pr-0 { padding-right: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }

.p-1 { padding: 0.25rem !important; }
.pt-1 { padding-top: 0.25rem !important; }
.pr-1 { padding-right: 0.25rem !important; }
.pb-1 { padding-bottom: 0.25rem !important; }
.pl-1 { padding-left: 0.25rem !important; }

.p-2 { padding: 0.5rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pr-2 { padding-right: 0.5rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pl-2 { padding-left: 0.5rem !important; }

.p-3 { padding: 1rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pr-3 { padding-right: 1rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pl-3 { padding-left: 1rem !important; }

.p-4 { padding: 1.5rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pr-4 { padding-right: 1.5rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }
.pl-4 { padding-left: 1.5rem !important; }

.p-5 { padding: 3rem !important; }
.pt-5 { padding-top: 3rem !important; }
.pr-5 { padding-right: 3rem !important; }
.pb-5 { padding-bottom: 3rem !important; }
.pl-5 { padding-left: 3rem !important; }

/* 文本工具类 */
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.text-justify { text-align: justify !important; }

.text-lowercase { text-transform: lowercase !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-capitalize { text-transform: capitalize !important; }

.font-weight-light { font-weight: 300 !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-bold { font-weight: 700 !important; }
.font-weight-bolder { font-weight: 900 !important; }

.text-muted { color: #6c757d !important; }
.text-primary { color: #007bff !important; }
.text-secondary { color: #6c757d !important; }
.text-success { color: #28a745 !important; }
.text-danger { color: #dc3545 !important; }
.text-warning { color: #ffc107 !important; }
.text-info { color: #17a2b8 !important; }

/* 背景工具类 */
.bg-primary { background-color: #007bff !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-success { background-color: #28a745 !important; }
.bg-danger { background-color: #dc3545 !important; }
.bg-warning { background-color: #ffc107 !important; }
.bg-info { background-color: #17a2b8 !important; }
.bg-light { background-color: #f8f9fa !important; }
.bg-dark { background-color: #343a40 !important; }
.bg-white { background-color: #fff !important; }
.bg-transparent { background-color: transparent !important; }

/* 边框工具类 */
.border { border: 1px solid #dee2e6 !important; }
.border-top { border-top: 1px solid #dee2e6 !important; }
.border-right { border-right: 1px solid #dee2e6 !important; }
.border-bottom { border-bottom: 1px solid #dee2e6 !important; }
.border-left { border-left: 1px solid #dee2e6 !important; }

.border-0 { border: 0 !important; }
.border-top-0 { border-top: 0 !important; }
.border-right-0 { border-right: 0 !important; }
.border-bottom-0 { border-bottom: 0 !important; }
.border-left-0 { border-left: 0 !important; }

/* 圆角工具类 */
.rounded { border-radius: 0.25rem !important; }
.rounded-top { border-top-left-radius: 0.25rem !important; border-top-right-radius: 0.25rem !important; }
.rounded-right { border-top-right-radius: 0.25rem !important; border-bottom-right-radius: 0.25rem !important; }
.rounded-bottom { border-bottom-right-radius: 0.25rem !important; border-bottom-left-radius: 0.25rem !important; }
.rounded-left { border-top-left-radius: 0.25rem !important; border-bottom-left-radius: 0.25rem !important; }
.rounded-circle { border-radius: 50% !important; }
.rounded-0 { border-radius: 0 !important; }

/* 阴影工具类 */
.shadow-sm { box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important; }
.shadow { box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important; }
.shadow-lg { box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important; }
.shadow-none { box-shadow: none !important; }

/* 位置工具类 */
.position-static { position: static !important; }
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* 宽度和高度工具类 */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }
.w-auto { width: auto !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }
.h-auto { height: auto !important; }

/* 响应式工具类 */
@media (min-width: 576px) {
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-inline { display: inline !important; }
    .d-sm-inline-block { display: inline-block !important; }
    .d-sm-flex { display: flex !important; }
    .d-sm-inline-flex { display: inline-flex !important; }
}

@media (min-width: 768px) {
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
    .d-md-inline { display: inline !important; }
    .d-md-inline-block { display: inline-block !important; }
    .d-md-flex { display: flex !important; }
    .d-md-inline-flex { display: inline-flex !important; }
}

@media (min-width: 992px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-inline { display: inline !important; }
    .d-lg-inline-block { display: inline-block !important; }
    .d-lg-flex { display: flex !important; }
    .d-lg-inline-flex { display: inline-flex !important; }
}

@media (min-width: 1200px) {
    .d-xl-none { display: none !important; }
    .d-xl-block { display: block !important; }
    .d-xl-inline { display: inline !important; }
    .d-xl-inline-block { display: inline-block !important; }
    .d-xl-flex { display: flex !important; }
    .d-xl-inline-flex { display: inline-flex !important; }
}

/* 相关文章图片特殊处理 - 需要固定高度 */
body.single-ai-project .related-article-image img,
body.single-ai-tutorial .related-article-image img {
    height: 180px !important;
    object-fit: cover !important;
}

/* ===== 基础组件样式 ===== */
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn:hover,
.btn:focus {
    text-decoration: none;
}

.btn:focus,
.btn.focus {
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.btn-primary:hover {
    color: #fff;
    background-color: #0069d9;
    border-color: #0062cc;
}

.btn-secondary {
    color: #fff;
    background-color: #6c757d;
    border-color: #6c757d;
}

.btn-secondary:hover {
    color: #fff;
    background-color: #5a6268;
    border-color: #545b62;
}

/* ===== 动画和过渡 ===== */
.fade {
    transition: opacity 0.15s linear;
}

.fade.show {
    opacity: 1;
}

.collapse {
    display: none;
}

.collapse.show {
    display: block;
}

.collapsing {
    position: relative;
    height: 0;
    overflow: hidden;
    transition: height 0.35s ease;
}

/* ===== 响应式容器 ===== */
.container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
} 

/* ===== Bootstrap Clearfix 修复 ===== */
/* 解决卡片网格中空白位置的问题 */
.row::before,
.row::after {
    display: none !important;
    content: none !important;
}

/* 确保卡片网格正常显示 */
.row.grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
}

.row.grid .xe-card {
    margin-bottom: 20px;
}

/* 兼容性处理 */
.row.grid::before,
.row.grid::after {
    display: none !important;
    content: none !important;
}

/* 清除浮动 */
.row.grid {
    *zoom: 1;
}

.row.grid:after {
    content: "";
    display: table;
    clear: both;
}

/* 修复所有使用row类的网格布局 */
.row[class*="grid"],
.row[class*="card"],
.row[class*="xe-card"] {
    display: flex;
    flex-wrap: wrap;
}

.row[class*="grid"]::before,
.row[class*="grid"]::after,
.row[class*="card"]::before,
.row[class*="card"]::after,
.row[class*="xe-card"]::before,
.row[class*="xe-card"]::after {
    display: none !important;
    content: none !important;
}