/* ==========================================================================
   Yixiang UI / 翊象 UI
   Layout and Navigation
   布局与导航

   Copyright (c) 2026 威海颜翊网络科技有限公司
   Licensed under the MIT License. Commercial use is permitted.
   https://www.weihaiyanyi.com  |  pinenetcn@gmail.com
   ========================================================================== */
.yx-app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ----------------------------------------------------
   1. Front Layout (Landing, Articles)
   ---------------------------------------------------- */
.yx-header {
    height: 64px;
    width: 100%;
    background-color: var(--yx-bg-paper);
    border-bottom: 1px solid var(--yx-border-light);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: var(--yx-z-header);
    transition: background-color var(--yx-transition-base), box-shadow var(--yx-transition-base), border-color var(--yx-transition-base);
}

.yx-header-transparent {
    background-color: transparent;
    border-bottom-color: transparent;
    position: fixed; /* 首页 Hero 上方的透明头部 */
    width: 100%;
}

.yx-header-scrolled {
    background-color: rgba(var(--yx-bg-paper-rgb), 0.95) !important;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom-color: var(--yx-border-light) !important;
    box-shadow: var(--yx-shadow-sm);
}

/* Nav Links Color Transition */
.yx-header-transparent:not(.yx-header-scrolled) .yx-nav-link {
    color: rgba(255, 255, 255, 0.8);
}
.yx-header-transparent:not(.yx-header-scrolled) .yx-nav-link:hover,
.yx-header-transparent:not(.yx-header-scrolled) .yx-nav-link.active {
    color: #ffffff;
}
.yx-header-transparent:not(.yx-header-scrolled) .yx-logo {
    color: #ffffff;
}
.yx-header-transparent:not(.yx-header-scrolled) .yx-btn-ghost {
    color: #ffffff;
}
.yx-header-transparent:not(.yx-header-scrolled) .yx-mobile-menu-btn {
    color: #ffffff;
}

/* Scrolled State Text Colors */
.yx-header-transparent.yx-header-scrolled .yx-nav-link {
    color: var(--yx-text-secondary);
}
.yx-header-transparent.yx-header-scrolled .yx-nav-link:hover,
.yx-header-transparent.yx-header-scrolled .yx-nav-link.active {
    color: var(--yx-brand-primary);
}
.yx-header-transparent.yx-header-scrolled .yx-logo {
    color: var(--yx-text-primary);
}
.yx-header-transparent.yx-header-scrolled .yx-btn-ghost {
    color: var(--yx-text-secondary);
}
.yx-header-transparent.yx-header-scrolled .yx-mobile-menu-btn {
    color: var(--yx-text-primary);
}

/* 浅色主题下，透明头部上的深色 Logo 反相为白色 */
html[data-theme="light"] .yx-header-transparent:not(.yx-header-scrolled) .yx-brand-logo {
    filter: brightness(0) invert(1);
}

.yx-header-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--yx-space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--yx-space-6);
    height: 100%;
}

.yx-logo {
    display: flex;
    align-items: center;
    gap: var(--yx-space-2);
    font-size: var(--yx-text-lg);
    font-weight: 700;
    color: var(--yx-text-primary);
    flex-shrink: 0;
}

.yx-nav-links {
    display: flex;
    gap: var(--yx-space-6);
    align-items: center;
}

.yx-header .yx-nav-links {
    margin-left: auto;
}

.yx-nav-link {
    font-weight: 500;
    color: var(--yx-text-secondary);
    white-space: nowrap;
}

.yx-nav-link:hover,
.yx-nav-link.active {
    color: var(--yx-brand-primary);
}

.yx-header-actions {
    display: flex;
    align-items: center;
    gap: var(--yx-space-3);
    flex-shrink: 0;
}

/* ------------------------------------------------------------------
   主题切换：浅色 / 深色 / 跟随系统
   ------------------------------------------------------------------ */
.yx-theme-switch .yx-theme-icon {
    display: none;
}

html[data-theme-mode="light"] .yx-theme-switch .yx-theme-icon-light,
html[data-theme-mode="dark"] .yx-theme-switch .yx-theme-icon-dark,
html[data-theme-mode="system"] .yx-theme-switch .yx-theme-icon-system {
    display: block;
}

/* 首屏脚本执行前的兜底图标 */
html:not([data-theme-mode]) .yx-theme-switch .yx-theme-icon-light {
    display: block;
}

.yx-theme-menu {
    min-width: 150px;
}

.yx-theme-menu .yx-dropdown-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--yx-space-3);
    border: none;
    background: none;
    text-align: left;
    font-family: inherit;
}

.yx-theme-menu .yx-dropdown-item.is-active {
    color: var(--yx-brand-primary);
    font-weight: 600;
}

.yx-theme-menu .yx-dropdown-item.is-active::after {
    content: "✓";
    font-size: var(--yx-text-xs);
}

/* 移动端汉堡按钮：默认隐藏，≤768px 显示；后台桌面端保留折叠入口 */
.yx-mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: var(--yx-radius-md);
    background: transparent;
    color: inherit;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}
.yx-mobile-menu-btn:hover {
    background-color: var(--yx-bg-hover);
}

.yx-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--yx-space-6);
}

/* 前台移动端抽屉（基础样式，移动端断点内再放大尺寸） */
.yx-front-mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 85%;
    background-color: var(--yx-bg-paper);
    border-left: 1px solid var(--yx-border-light);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.12);
    z-index: var(--yx-z-modal);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--yx-transition-base), visibility var(--yx-transition-base);
}

.yx-front-mobile-drawer.open {
    transform: translateX(0);
    visibility: visible;
}

.yx-front-mobile-drawer:focus {
    outline: none;
}

.yx-front-mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 var(--yx-space-5);
    border-bottom: 1px solid var(--yx-border-light);
    flex-shrink: 0;
}

.yx-front-mobile-drawer-title {
    font-size: var(--yx-text-lg);
    font-weight: 600;
    color: var(--yx-text-primary);
}

.yx-front-mobile-drawer-close {
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: var(--yx-radius-md);
    background: transparent;
    color: var(--yx-text-tertiary);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
}
.yx-front-mobile-drawer-close:hover {
    background-color: var(--yx-bg-hover);
    color: var(--yx-text-primary);
}

.yx-front-mobile-drawer .yx-nav-links {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: var(--yx-space-4);
    overflow-y: auto;
}

.yx-front-mobile-drawer .yx-nav-link {
    padding: var(--yx-space-3) var(--yx-space-4);
    border-radius: var(--yx-radius-md);
    font-size: var(--yx-text-base);
    color: var(--yx-text-primary);
}
.yx-front-mobile-drawer .yx-nav-link:hover,
.yx-front-mobile-drawer .yx-nav-link.active {
    background-color: var(--yx-bg-hover);
    color: var(--yx-brand-primary);
}

/* ----------------------------------------------------
   2. Console / Admin Layout
   ---------------------------------------------------- */
.yx-layout-sidebar {
    position: relative;
    min-height: 100vh;
    background-color: var(--yx-bg-body);
}

.yx-sidebar {
    width: 240px;
    background-color: var(--yx-bg-sidebar);
    border-right: 1px solid var(--yx-border-light);
    display: flex;
    flex-direction: column;
    z-index: var(--yx-z-sidebar);
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    transition: transform var(--yx-transition-base), width var(--yx-transition-base);
}

.yx-sidebar-header {
    height: 64px;
    padding: 0 var(--yx-space-6);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--yx-border-light);
    flex-shrink: 0;
    overflow: hidden;
}

.yx-sidebar-menu {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.yx-menu-group {
    font-size: var(--yx-text-xs);
    font-weight: 600;
    color: var(--yx-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: var(--yx-space-3) var(--yx-space-3) var(--yx-space-1);
    white-space: nowrap;
}
.yx-menu-group:first-child {
    margin-top: var(--yx-space-1);
}

.yx-menu-item {
    display: flex;
    align-items: center;
    gap: var(--yx-space-3);
    padding: 8px var(--yx-space-3);
    border-radius: var(--yx-radius-md);
    color: var(--yx-text-secondary);
    font-size: var(--yx-text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--yx-transition-fast), color var(--yx-transition-fast);
    text-decoration: none;
    white-space: nowrap;
    min-width: 0;
}

.yx-menu-item svg {
    flex-shrink: 0;
}

.yx-menu-item > span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.yx-menu-item:hover {
    background-color: var(--yx-bg-hover);
    color: var(--yx-text-primary);
}

.yx-menu-item.active {
    background-color: var(--yx-bg-active);
    color: var(--yx-text-primary);
    font-weight: 600;
}

.yx-menu-item.active svg {
    color: var(--yx-brand-primary);
}

.yx-sidebar-footer {
    padding: var(--yx-space-4);
    border-top: 1px solid var(--yx-border-light);
    flex-shrink: 0;
    /* 不要使用 overflow:hidden：底部账户菜单需要向上溢出显示 */
}

/* Main Area - relies on window scroll */
.yx-main {
    padding-left: 240px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
    transition: padding-left var(--yx-transition-base);
    min-width: 0;
}

.yx-main-header {
    height: 64px;
    padding: 0 var(--yx-space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--yx-space-4);
    position: sticky;
    top: 0;
    z-index: var(--yx-z-header);
    background-color: rgba(var(--yx-bg-body-rgb), 0.85);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--yx-border-light);
}

.yx-content {
    flex: 1;
    padding: var(--yx-space-6);
    min-width: 0;
}

/* PJAX 加载时轻微变暗，给用户反馈 */
.yx-pjax-loading {
    opacity: 0.55;
    transition: opacity var(--yx-transition-fast);
    pointer-events: none;
}

/* Page Headers */
.yx-page-header {
    margin-bottom: var(--yx-space-6);
}

.yx-page-title {
    font-size: var(--yx-text-2xl);
    font-weight: 700;
    color: var(--yx-text-primary);
    line-height: 1.3;
}

.yx-page-desc {
    color: var(--yx-text-secondary);
    margin-top: var(--yx-space-1);
}

.yx-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
    font-size: var(--yx-text-sm);
    color: var(--yx-text-tertiary);
}
.yx-breadcrumb a {
    color: var(--yx-text-secondary);
}
.yx-breadcrumb a:hover {
    color: var(--yx-brand-primary);
}

.yx-breadcrumb-sep {
    margin: 0 var(--yx-space-2);
    color: var(--yx-text-caption);
}

.yx-breadcrumb-current {
    color: var(--yx-text-primary);
}

/* ----------------------------------------------------
   3. Sidebar Mini Mode (Desktop only)
   ---------------------------------------------------- */
@media (min-width: 769px) {
    body.sidebar-mini .yx-sidebar {
        width: 64px;
    }
    body.sidebar-mini .yx-sidebar-header {
        padding: 0;
        justify-content: center;
    }
    body.sidebar-mini .yx-logo span {
        display: none;
    }
    body.sidebar-mini .yx-menu-group {
        display: none;
    }
    body.sidebar-mini .yx-menu-item {
        padding: 10px 0;
        justify-content: center;
        gap: 0;
    }
    body.sidebar-mini .yx-menu-item span {
        display: none;
    }
    body.sidebar-mini .yx-menu-item svg {
        margin: 0;
    }
    /* 没有图标的纯文字菜单项，折叠后显示首字，避免变成空白按钮 */
    body.sidebar-mini .yx-menu-item--text {
        font-size: 0;
    }
    body.sidebar-mini .yx-menu-item--text::before {
        content: attr(data-initial);
        font-size: 13px;
        font-weight: 600;
    }
    body.sidebar-mini .yx-main {
        padding-left: 64px;
    }
    body.sidebar-mini .yx-sidebar-footer span {
        display: none;
    }
    body.sidebar-mini .yx-sidebar-footer .yx-menu-item > div:not(:first-child) {
        display: none;
    }
    body.sidebar-mini .yx-sidebar-footer .yx-menu-item {
        padding: 4px 0;
        justify-content: center;
    }
    body.sidebar-mini .yx-sidebar-footer .yx-menu-item .yx-dropdown-menu {
        left: 100%;
        right: auto;
        bottom: 0;
        top: auto;
        margin-left: 10px;
    }

    /* 后台在桌面端保留侧栏折叠按钮 */
    .yx-layout-sidebar .yx-main-header .yx-mobile-menu-btn {
        display: inline-flex;
    }
}

/* ----------------------------------------------------
   4. Hero
   ---------------------------------------------------- */
.yx-hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 64px; /* header height */
    position: relative;
    overflow: hidden;
}

/* Static Gradient Hero Background */
.yx-hero-static-bg {
    background-color: #0b1320;
    background-image:
        radial-gradient(ellipse at 20% 30%, rgba(57, 100, 254, 0.4) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(57, 100, 254, 0.3) 0%, transparent 50%);
    position: relative;
}

/* Grid Overlay on Hero */
.yx-hero-static-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 90px 90px;
    background-position: center center;
    z-index: 1;
    pointer-events: none;
}

/* 中文标题避免最后一行只剩一个孤字 */
.yx-hero h1,
.yx-article-title {
    text-wrap: balance;
}

/* ----------------------------------------------------
   5. Utility Classes
   ---------------------------------------------------- */
.yx-flex { display: flex; }
.yx-flex-col { display: flex; flex-direction: column; }
.yx-flex-wrap { flex-wrap: wrap; }
.yx-items-center { align-items: center; }
.yx-items-start { align-items: flex-start; }
.yx-justify-between { justify-content: space-between; }
.yx-justify-center { justify-content: center; }
.yx-gap-1 { gap: var(--yx-space-1); }
.yx-gap-2 { gap: var(--yx-space-2); }
.yx-gap-3 { gap: var(--yx-space-3); }
.yx-gap-4 { gap: var(--yx-space-4); }
.yx-gap-6 { gap: var(--yx-space-6); }
.yx-mt-2 { margin-top: var(--yx-space-2); }
.yx-mt-4 { margin-top: var(--yx-space-4); }
.yx-mt-6 { margin-top: var(--yx-space-6); }
.yx-mb-2 { margin-bottom: var(--yx-space-2); }
.yx-mb-4 { margin-bottom: var(--yx-space-4); }
.yx-mb-6 { margin-bottom: var(--yx-space-6); }
.yx-ml-auto { margin-left: auto; }
.yx-w-full { width: 100%; }
.yx-text-center { text-align: center; }
.yx-hidden { display: none !important; }

/* 文章详情标题 */
.yx-article-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: var(--yx-text-primary);
}