/**
 * Kejie Phone Case - 核心设计规范与全局基础样式
 * 纯原生 Vanilla CSS3 架构
 */

:root {
    /* 品牌主色调体系 */
    --color-primary: #00c4b4;
    --color-primary-dark: #009e91;
    --color-primary-hover: #00b2a3;
    --color-primary-light: #e6f9f7;
    --color-primary-soft: rgba(0, 196, 180, 0.08);

    --color-gradient-topbar: linear-gradient(90deg, #e63970 0%, #00c4b4 100%);
    --color-gradient-accent: linear-gradient(135deg, #00c4b4 0%, #009e91 100%);

    /* 中性色与文字颜色 */
    --color-dark: #000000;
    --color-text-main: #1e242b;
    --color-text-heading: #111827;
    --color-text-muted: #64748b;
    --color-text-light: #94a3b8;
    --color-bg-body: #ffffff;
    --color-bg-light: #f8fafc;
    --color-bg-gray: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-light: #edf2f7;

    /* 状态与强调点缀色 */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;

    /* 字体排印 */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* 间距与圆角 */
    --container-max-width: 1320px;
    --container-padding: 24px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-pill: 9999px;

    /* 阴影效果 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 12px 30px rgba(0, 196, 180, 0.16);

    /* 缓动与过渡 */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* CSS 重置与全局标准化 */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-bg-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* 标题字体层级 */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-text-heading);
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* ==========================================================================
   后台富文本编辑器内链与正文链接专属样式标准规范
   包含：产品详情Features/Specifications、博客正文、产品分类SEO长文本与采购指南等
   ========================================================================== */
.entry-content a,
.product-editor-content a,
.specs-content-wrap a,
.blog-content-body a,
.kejie-collapsible-text a,
.how-to-buy-guide-section a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1.5px;
    text-decoration-color: rgba(0, 196, 180, 0.4);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.entry-content a:hover,
.product-editor-content a:hover,
.specs-content-wrap a:hover,
.blog-content-body a:hover,
.kejie-collapsible-text a:hover,
.how-to-buy-guide-section a:hover {
    color: var(--color-primary-dark);
    text-decoration-color: var(--color-primary-dark);
    background-color: var(--color-primary-light);
    border-radius: 2px;
}

/* 排除编辑器内部图片、按钮组件等无需添加文字下划线的元素 */
.entry-content a:has(img),
.product-editor-content a:has(img),
.specs-content-wrap a:has(img),
.blog-content-body a:has(img),
.kejie-collapsible-text a:has(img),
.how-to-buy-guide-section a:has(img),
.entry-content a.btn,
.blog-content-body a.btn,
.entry-content .wp-block-button__link,
.blog-content-body .wp-block-button__link {
    text-decoration: none;
    background-color: transparent;
    font-weight: inherit;
}

/* ==========================================================================
   后台富文本编辑器全局公共表格样式规范
   参考产品详情页 SPECIFICATIONS 规格板块表格规范：
   优雅细边框（#e2e8f0）、淡灰底表头（#f8fafc）、高质感内边距（12px 18px）、
   斑马纹悬停微光与移动端自适应横向滚动支持
   ========================================================================== */
.entry-content table,
.product-editor-content table,
.specs-content-wrap table,
.blog-content-body table,
.kejie-collapsible-text table,
.wp-block-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    line-height: 1.6;
    margin: 20px 0;
    background-color: #ffffff;
    border: 1px solid var(--color-border);
}

.entry-content th,
.entry-content td,
.product-editor-content th,
.product-editor-content td,
.specs-content-wrap th,
.specs-content-wrap td,
.blog-content-body th,
.blog-content-body td,
.kejie-collapsible-text th,
.kejie-collapsible-text td,
.wp-block-table th,
.wp-block-table td {
    padding: 12px 18px;
    border: 1px solid var(--color-border);
    vertical-align: top;
    text-align: left;
}

.entry-content th,
.product-editor-content th,
.specs-content-wrap th,
.blog-content-body th,
.kejie-collapsible-text th,
.wp-block-table th {
    background-color: #f8fafc;
    color: var(--color-text-heading);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.entry-content td,
.product-editor-content td,
.specs-content-wrap td,
.blog-content-body td,
.kejie-collapsible-text td,
.wp-block-table td {
    color: var(--color-text-main);
}

.entry-content tbody tr:hover,
.product-editor-content tbody tr:hover,
.specs-content-wrap tbody tr:hover,
.blog-content-body tbody tr:hover,
.kejie-collapsible-text tbody tr:hover,
.wp-block-table tbody tr:hover {
    background-color: #fafbfc;
}

/* Gutenberg 古腾堡表格块及移动端窄屏横向平滑滚动包裹 */
.entry-content figure.wp-block-table,
.blog-content-body figure.wp-block-table,
.product-editor-content figure.wp-block-table {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 20px 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul,
ol {
    list-style: none;
}

/* 仅针对【博客详情页】与【产品详情页】编辑器正文区恢复列表默认样式 */
.blog-content-body ul,
.blog-content-body ol,
.blog-content-body li,
.product-editor-content ul,
.product-editor-content ol,
.product-editor-content li,
.specs-content-wrap ul,
.specs-content-wrap ol,
.specs-content-wrap li {
    list-style: revert;
    margin: revert;
    padding: revert;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: 1rem;
}

/* 布局辅助类 */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.section-padding {
    padding-top: 70px;
    padding-bottom: 70px;
}

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

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

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

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

/* 按钮与行动号召 (CTA) 元素 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 196, 180, 0.35);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    box-shadow: var(--shadow-hover);
    transform: translateY(-1px);
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #ffffff;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 14px 34px;
    font-size: 1.0625rem;
}

/* 面包屑导航样式（严格对齐设计稿规范） */
.kejie-breadcrumbs {
    background: #ffffff;
    /* 纯白背景色 */
    padding: 14px 0 12px;
    font-size: 0.875rem;
    border-bottom: none;
    /* 移除多余的浅灰底边框，与页面白底平滑融合 */
}

.breadcrumb-inner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

/* 最前方图层矢量图标：天蓝色/青蓝色 */
.breadcrumb-lead-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    color: var(--color-primary);
    flex-shrink: 0;
}

.breadcrumb-lead-icon img {
    width: 24px;
    height: 24px;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.breadcrumb-item {
    display: inline-flex;
    align-items: center;
}

/* 前置层级链接：设计稿明快天蓝色，悬停呈现品牌红 */
.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* 最后一级当前页面：标准纯黑/深黑字体 */
.breadcrumb-item.active {
    color: #111827;
    font-weight: 500;
}

/* 层级之间的淡灰色斜杠分隔符 */
.breadcrumb-list .separator {
    color: #94a3b8;
    font-size: 0.8125rem;
    margin: 0 2px;
    user-select: none;
}

/* 表单控件输入框样式 */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.9375rem;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 196, 180, 0.12);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* 响应式断点控制 */
@media (max-width: 1024px) {
    :root {
        --container-padding: 20px;
    }

    h1 {
        font-size: 2.125rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 16px;
    }

    .section-padding {
        padding-top: 50px;
        padding-bottom: 50px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }
}

/* 智能防机器人扫描隐形蜜罐样式（屏幕外定位，彻底杜绝爬虫识破 display:none） */
.kejie-form-scanner-trap {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    opacity: 0 !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
    pointer-events: none !important;
    z-index: -9999 !important;
}

@keyframes kejieSpin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   全局回到顶部快捷悬浮按钮（Back To Top）
   ========================================================================== */
.back-to-top {
    position: fixed;
    right: 28px;
    bottom: 30px;
    width: 44px;
    height: 44px;
    background-color: var(--color-primary, #00c4b4);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-md, 8px);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 196, 180, 0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        visibility 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        background-color var(--transition-fast, 0.2s ease),
        box-shadow var(--transition-fast, 0.2s ease);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-primary-dark, #009e91);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 196, 180, 0.42);
}

.back-to-top:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 196, 180, 0.25);
}

.back-to-top-icon {
    display: block;
    stroke: currentColor;
    transition: transform var(--transition-fast, 0.2s ease);
}

.back-to-top:hover .back-to-top-icon {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .back-to-top {
        right: 18px;
        bottom: 20px;
        width: 40px;
        height: 40px;
        border-radius: 6px;
    }
}