/*!
 * AuAdmin - 现代后台管理框架样式
 * 完全自研，替代 layui / layuimini 主题，仅依赖图标库（font-awesome）
 */

/* ============ 主题变量 ============ */
:root {
    --au-primary: #5468ff;
    --au-primary-hover: #3f54f0;
    --au-primary-soft: rgba(84, 104, 255, .12);
    --au-bg: #f3f4f8;
    --au-surface: #ffffff;
    --au-border: #e7e9f0;
    --au-text: #1c2333;
    --au-text-2: #6c7486;
    --au-text-3: #9aa1b2;
    --au-sidebar-bg: #ffffff;
    --au-sidebar-hover: rgba(23, 29, 43, .05);
    --au-sidebar-text: #5b6472;
    --au-header-h: 56px;
    --au-sidebar-w: 236px;
    --au-sidebar-w-min: 64px;
    --au-radius: 8px;
    --au-radius-lg: 12px;
    --au-shadow: 0 1px 2px rgba(23, 29, 43, .06), 0 1px 3px rgba(23, 29, 43, .08);
    --au-shadow-lg: 0 12px 32px rgba(23, 29, 43, .16);
    --au-transition: .22s cubic-bezier(.4, 0, .2, 1);
}

[data-au-theme="violet"] { --au-primary: #7c3aed; --au-primary-hover: #6d28d9; --au-primary-soft: rgba(124, 58, 237, .12); }
[data-au-theme="green"] { --au-primary: #0e9f6e; --au-primary-hover: #0b8a5e; --au-primary-soft: rgba(14, 159, 110, .12); }
[data-au-theme="cyan"] { --au-primary: #0891b2; --au-primary-hover: #076e88; --au-primary-soft: rgba(8, 145, 178, .12); }
[data-au-theme="orange"] { --au-primary: #ea580c; --au-primary-hover: #c2410c; --au-primary-soft: rgba(234, 88, 12, .12); }
[data-au-theme="rose"] { --au-primary: #e11d48; --au-primary-hover: #be123c; --au-primary-soft: rgba(225, 29, 72, .12); }

/* ============ 基础 ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--au-bg);
    color: var(--au-text);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}
a { text-decoration: none; color: inherit; }
button { font-family: inherit; }
::selection { background: var(--au-primary-soft); }

/* ============ 整体布局 ============ */
.au-admin { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.au-body { display: flex; flex: 1; min-height: 0; }

/* ============ 顶栏 ============ */
.au-header {
    height: var(--au-header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--au-surface);
    border-bottom: 1px solid var(--au-border);
    padding: 0 14px;
    flex-shrink: 0;
    z-index: 30;
    position: relative;
}
.au-header-left, .au-header-right { display: flex; align-items: center; gap: 4px; }

.au-logo {
    display: flex; align-items: center; justify-content: flex-start; gap: 10px;
    width: var(--au-sidebar-w);
    padding: 0 18px;
    overflow: hidden;
    white-space: nowrap;
    transition: width var(--au-transition), padding var(--au-transition);
    flex-shrink: 0;
}
.au-logo img { height: 30px; width: auto; border-radius: 8px; object-fit: contain; flex-shrink: 0; }
.au-logo-title { font-size: 16px; font-weight: 700; letter-spacing: .3px; white-space: nowrap; }
/* 侧边栏折叠时 logo 同步收窄，仅显示图标 */
.au-logo.collapsed {
    width: var(--au-sidebar-w-min);
    padding: 0;
    justify-content: center;
}
.au-logo.collapsed .au-logo-title { display: none; }

/* 顶部一级目录导航 */
.au-header-menu {
    display: flex; align-items: center;
    gap: 4px;
    margin-left: 10px;
    margin-right: auto;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
}
.au-header-menu::-webkit-scrollbar { display: none; }
.au-top-item {
    display: inline-flex; align-items: center; gap: 6px;
    height: 34px; padding: 0 12px;
    border: 0; background: transparent;
    border-radius: 8px;
    color: var(--au-text-2);
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--au-transition);
}
.au-top-item .au-menu-icon { font-size: 13px; color: var(--au-text-3); }
.au-top-item:hover { background: var(--au-bg); color: var(--au-text); }
.au-top-item:hover .au-menu-icon { color: var(--au-text-2); }
.au-top-item.active {
    background: var(--au-primary-soft);
    color: var(--au-primary);
    font-weight: 600;
}
.au-top-item.active .au-menu-icon { color: var(--au-primary); }

.au-header-btn {
    width: 36px; height: 36px;
    border: 0; background: transparent;
    border-radius: var(--au-radius);
    color: var(--au-text-2); font-size: 15px;
    cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    transition: var(--au-transition);
}
.au-header-btn:hover { background: var(--au-primary-soft); color: var(--au-primary); }

/* 用户菜单 */
.au-user { position: relative; margin-left: 6px; }
.au-user-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 4px 10px 4px 5px;
    border-radius: 999px; cursor: pointer;
    border: 0; background: transparent;
    transition: var(--au-transition);
}
.au-user-btn:hover { background: var(--au-bg); }
.au-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, var(--au-primary), #8b5cf6);
    color: #fff; font-weight: 600; font-size: 14px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; user-select: none;
}
.au-user-name { font-size: 14px; color: var(--au-text); max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.au-dropdown {
    position: absolute; right: 0; top: calc(100% + 10px);
    min-width: 150px;
    background: var(--au-surface);
    border: 1px solid var(--au-border);
    border-radius: var(--au-radius-lg);
    box-shadow: var(--au-shadow-lg);
    padding: 6px;
    opacity: 0; visibility: hidden;
    transform: translateY(6px);
    transition: var(--au-transition);
    z-index: 50;
    list-style: none;
}
.au-user.open .au-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.au-dropdown li { list-style: none; }
.au-dropdown a {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 12px;
    border-radius: 6px;
    color: var(--au-text);
    font-size: 13.5px;
    cursor: pointer;
    transition: var(--au-transition);
}
.au-dropdown a i { width: 16px; text-align: center; color: var(--au-text-2); }
.au-dropdown a:hover { background: var(--au-bg); color: var(--au-primary); }
.au-dropdown a:hover i { color: var(--au-primary); }
.au-dropdown .au-divider { height: 1px; background: var(--au-border); margin: 6px 4px; }
.au-dropdown .au-logout-item:hover,
.au-dropdown .au-logout-item:hover i { color: #e11d48; }
.au-dropdown .au-logout-item:hover { background: rgba(225, 29, 72, .06); }

/* 主题配色面板 */
.au-theme-panel {
    position: fixed; right: 14px; top: calc(var(--au-header-h) + 10px);
    z-index: 60;
    background: var(--au-surface);
    border: 1px solid var(--au-border);
    border-radius: var(--au-radius-lg);
    box-shadow: var(--au-shadow-lg);
    padding: 14px 16px;
    opacity: 0; visibility: hidden;
    transform: translateY(6px);
    transition: var(--au-transition);
}
.au-theme-panel.show { opacity: 1; visibility: visible; transform: translateY(0); }
.au-theme-title { font-size: 12px; color: var(--au-text-3); margin-bottom: 10px; }
.au-theme-items { display: flex; gap: 10px; }
.au-theme-item {
    width: 24px; height: 24px; border-radius: 50%;
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px var(--au-border);
    transition: var(--au-transition);
}
.au-theme-item:hover { transform: scale(1.18); }
.au-theme-item.active { box-shadow: 0 0 0 2px var(--au-primary); }
.au-theme-item[data-theme="default"] { background: #5468ff; }
.au-theme-item[data-theme="violet"] { background: #7c3aed; }
.au-theme-item[data-theme="green"] { background: #0e9f6e; }
.au-theme-item[data-theme="cyan"] { background: #0891b2; }
.au-theme-item[data-theme="orange"] { background: #ea580c; }
.au-theme-item[data-theme="rose"] { background: #e11d48; }

/* ============ 侧边栏 ============ */
.au-sidebar {
    width: var(--au-sidebar-w);
    background: var(--au-sidebar-bg);
    color: var(--au-sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
    transition: width var(--au-transition);
    z-index: 20;
    border-right: 1px solid var(--au-border);
}
.au-sidebar.collapsed { width: var(--au-sidebar-w-min); }

/* 侧边栏模块标题条 */
.au-module-title {
    display: flex; align-items: center; gap: 10px;
    height: 46px;
    padding: 0 18px;
    color: var(--au-text);
    font-size: 14px;
    font-weight: 600;
    border-bottom: 1px solid var(--au-border);
    flex-shrink: 0;
    white-space: nowrap;
    overflow: hidden;
}
.au-module-title .au-menu-icon { color: var(--au-primary); font-size: 15px; }
.au-sidebar.collapsed .au-module-title { justify-content: center; padding: 0; }
.au-sidebar.collapsed .au-module-title .au-menu-text { display: none; }

.au-menu { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 12px 10px 24px; }
.au-menu::-webkit-scrollbar { width: 4px; }
.au-menu::-webkit-scrollbar-thumb { background: rgba(23, 29, 43, .15); border-radius: 4px; }
.au-menu::-webkit-scrollbar-thumb:hover { background: rgba(23, 29, 43, .26); }

/* 分组 */
.au-menu-group { margin-bottom: 4px; }
.au-menu-group-title {
    display: flex; align-items: center; gap: 10px;
    height: 40px; padding: 0 12px;
    border-radius: var(--au-radius);
    cursor: pointer;
    color: var(--au-sidebar-text);
    font-size: 14px;
    transition: var(--au-transition);
    user-select: none;
    white-space: nowrap;
}
.au-menu-group-title:hover { background: var(--au-sidebar-hover); color: var(--au-text); }
.au-menu-icon { width: 18px; text-align: center; font-size: 14px; flex-shrink: 0; }
.au-menu-text { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.au-menu-arrow { font-size: 12px; transition: transform var(--au-transition); }
.au-menu-group.open > .au-menu-group-title .au-menu-arrow { transform: rotate(180deg); }
.au-menu-sub { display: none; padding: 2px 0 4px 14px; }
.au-menu-group.open > .au-menu-sub { display: block; }

/* 菜单链接 */
.au-menu-link {
    display: flex; align-items: center; gap: 10px;
    height: 38px; padding: 0 12px;
    border-radius: var(--au-radius);
    color: var(--au-sidebar-text);
    font-size: 13.5px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--au-transition);
}
/* 多级嵌套缩进（第 2/3/4 层） */
.au-menu-sub .au-menu-link { padding-left: 18px; }
.au-menu-sub .au-menu-sub .au-menu-link { padding-left: 36px; }
.au-menu-sub .au-menu-sub .au-menu-sub .au-menu-link { padding-left: 54px; }
/* 嵌套分组标题更紧凑 */
.au-menu-sub .au-menu-group-title { height: 34px; border-radius: 6px; }
.au-menu-link:hover { background: var(--au-sidebar-hover); color: var(--au-primary); }
.au-menu-link.active {
    background: var(--au-primary);
    color: #fff;
    box-shadow: 0 4px 14px color-mix(in srgb, var(--au-primary) 35%, transparent);
}
.au-menu-link.active .au-menu-icon { color: #fff; }

/* 折叠态：隐藏文字，子菜单用 JS 弹出 */
.au-sidebar.collapsed .au-menu-text,
.au-sidebar.collapsed .au-menu-arrow { display: none; }
.au-sidebar.collapsed .au-menu-group-title,
.au-sidebar.collapsed .au-menu-link-root,
.au-sidebar.collapsed .au-menu-link { justify-content: center; padding: 0; }
.au-sidebar.collapsed .au-menu-group.open > .au-menu-sub { display: none; }

/* 折叠态悬浮菜单 */
.au-menu-popup {
    position: fixed; z-index: 60;
    min-width: 178px;
    background: var(--au-surface);
    border: 1px solid var(--au-border);
    border-radius: var(--au-radius-lg);
    box-shadow: var(--au-shadow-lg);
    padding: 6px;
    display: none;
}
.au-menu-popup.show { display: block; }
.au-menu-popup .au-popup-title { padding: 6px 12px 4px; font-size: 12px; color: var(--au-text-3); }
.au-menu-popup a {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 12px;
    border-radius: 6px;
    color: var(--au-text);
    font-size: 13px;
    cursor: pointer;
    transition: var(--au-transition);
}
.au-menu-popup a:hover { background: var(--au-bg); color: var(--au-primary); }
.au-menu-popup .au-menu-icon { color: var(--au-text-2); }
.au-menu-popup a:hover .au-menu-icon { color: var(--au-primary); }

/* ============ 主区域 ============ */
.au-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

/* 标签页 */
.au-tabs {
    height: 44px;
    display: flex;
    align-items: center;
    background: var(--au-surface);
    border-bottom: 1px solid var(--au-border);
    padding: 0 8px;
    gap: 6px;
    flex-shrink: 0;
}
.au-tabs-scroll {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    min-width: 0;
}
.au-tabs-scroll::-webkit-scrollbar { display: none; }
.au-tab {
    display: inline-flex; align-items: center; gap: 7px;
    height: 30px; padding: 0 12px;
    border-radius: 999px;
    background: var(--au-bg);
    color: var(--au-text-2);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid transparent;
    flex-shrink: 0;
    transition: var(--au-transition);
}
.au-tab:hover { color: var(--au-primary); background: #eceef6; }
.au-tab.active {
    background: var(--au-primary-soft);
    color: var(--au-primary);
    border-color: color-mix(in srgb, var(--au-primary) 28%, transparent);
    font-weight: 500;
}
.au-tab-close {
    width: 16px; height: 16px;
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 10px;
    opacity: .55;
    transition: var(--au-transition);
}
.au-tab-close:hover { background: var(--au-primary); color: #fff; opacity: 1; }
.au-tab-home .au-tab-close { display: none; }

.au-tabs-tools {
    display: flex; align-items: center; gap: 2px;
    padding-left: 8px;
    border-left: 1px solid var(--au-border);
    flex-shrink: 0;
}
.au-tabs-tool {
    width: 30px; height: 30px;
    border: 0; background: transparent;
    border-radius: 8px;
    color: var(--au-text-2);
    cursor: pointer;
    font-size: 13px;
    display: inline-flex; align-items: center; justify-content: center;
    transition: var(--au-transition);
}
.au-tabs-tool:hover { background: var(--au-bg); color: var(--au-primary); }

.au-tabs-more { position: relative; }
.au-tabs-more ul {
    position: absolute; right: 0; top: calc(100% + 6px);
    min-width: 130px;
    background: var(--au-surface);
    border: 1px solid var(--au-border);
    border-radius: 10px;
    box-shadow: var(--au-shadow-lg);
    padding: 6px;
    opacity: 0; visibility: hidden;
    transform: translateY(6px);
    transition: var(--au-transition);
    z-index: 40;
    list-style: none;
}
.au-tabs-more.open ul { opacity: 1; visibility: visible; transform: translateY(0); }
.au-tabs-more li { padding: 8px 12px; border-radius: 6px; cursor: pointer; font-size: 13px; color: var(--au-text); transition: var(--au-transition); }
.au-tabs-more li:hover { background: var(--au-bg); color: var(--au-primary); }

/* 内容区 */
.au-content { flex: 1; min-height: 0; position: relative; background: var(--au-surface); }
.au-iframe {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    border: 0;
    display: block;
}
/* iframe 加载中遮罩 */
.au-frame-loading {
    position: absolute; inset: 0;
    background: var(--au-surface);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 14px;
    z-index: 5;
}
.au-spinner {
    width: 40px; height: 40px;
    border: 3px solid rgba(84, 104, 255, .15);
    border-top-color: var(--au-primary);
    border-radius: 50%;
    animation: au-spin .8s linear infinite;
}
@keyframes au-spin { to { transform: rotate(360deg); } }
.au-loading-text { color: var(--au-text-2); font-size: 13px; letter-spacing: .5px; }

/* ============ 通用组件 ============ */
.au-mask {
    position: fixed; inset: 0;
    background: rgba(23, 29, 43, .45);
    z-index: 15;
    opacity: 0; visibility: hidden;
    transition: var(--au-transition);
}
.au-mask.show { opacity: 1; visibility: visible; }

.au-toast {
    position: fixed; top: 40%; left: 50%;
    transform: translateX(-50%) translateY(-50%) scale(.88);
    z-index: 999;
    display: flex; align-items: center; gap: 10px;
    max-width: 80vw;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--au-text);
    padding: 10px 20px 10px 10px;
    border-radius: 16px;
    font-size: 13.5px;
    font-weight: 500;
    box-shadow: 0 12px 36px rgba(23, 29, 43, .16), 0 2px 8px rgba(23, 29, 43, .06);
    border: 1px solid rgba(255, 255, 255, .7);
    opacity: 0;
    pointer-events: none;
    transition: all .28s cubic-bezier(.4, 0, .2, 1);
}
.au-toast.show { opacity: 1; transform: translateX(-50%) translateY(-50%) scale(1); }
.au-toast-icon {
    width: 30px; height: 30px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 13px;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(23, 29, 43, .18);
}
.au-toast-success .au-toast-icon { background: linear-gradient(135deg, #34d399, #10b981); }
.au-toast-error .au-toast-icon { background: linear-gradient(135deg, #f87171, #ef4444); }
.au-toast-info .au-toast-icon { background: linear-gradient(135deg, #818cf8, #5468ff); }
.au-toast-msg { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.au-modal-mask {
    position: fixed; inset: 0;
    background: rgba(23, 29, 43, .45);
    z-index: 900;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden;
    transition: var(--au-transition);
}
.au-modal-mask.show { opacity: 1; visibility: visible; }
.au-modal {
    background: var(--au-surface);
    border-radius: 16px;
    box-shadow: var(--au-shadow-lg);
    width: 380px;
    max-width: calc(100vw - 32px);
    padding: 24px;
    transform: scale(.94);
    transition: var(--au-transition);
}
.au-modal-mask.show .au-modal { transform: scale(1); }
.au-modal-title { font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.au-modal-body { font-size: 14px; color: var(--au-text-2); line-height: 1.6; }
.au-modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

.au-btn {
    height: 36px; padding: 0 18px;
    border-radius: var(--au-radius);
    border: 1px solid var(--au-border);
    background: var(--au-surface);
    color: var(--au-text);
    font-size: 14px;
    cursor: pointer;
    transition: var(--au-transition);
}
.au-btn:hover { border-color: var(--au-primary); color: var(--au-primary); }
.au-btn-primary { background: var(--au-primary); border-color: var(--au-primary); color: #fff; }
.au-btn-primary:hover { background: var(--au-primary-hover); border-color: var(--au-primary-hover); color: #fff; }

/* ============ 响应式 ============ */
@media (max-width: 991px) {
    /* 移动端头部两行布局：第一行 logo + 操作按钮，第二行一级目录导航（可横向滚动） */
    :root { --au-header-h: 92px; }
    .au-header {
        height: auto;
        flex-wrap: wrap;
        align-items: center;
        padding: 8px 12px 6px;
    }
    .au-logo { width: auto; padding: 0 8px 0 2px; }
    .au-logo-title { display: none; }
    .au-header-left { flex: 1; min-width: 0; }
    .au-header-menu {
        order: 3;
        flex: 1 1 100%;
        width: 100%;
        max-width: 100%;
        margin: 6px 0 0;
        -webkit-overflow-scrolling: touch;
    }
    .au-header-right { flex-shrink: 0; }
    .au-header-btn { width: 34px; height: 34px; }
    .au-user-btn { padding: 2px 8px 2px 3px; }
    .au-user { margin-left: 2px; }

    .au-sidebar {
        position: fixed;
        left: 0; top: var(--au-header-h); bottom: 0;
        transform: translateX(-100%);
        box-shadow: var(--au-shadow-lg);
        transition: transform var(--au-transition);
    }
    .au-sidebar.mobile-open { transform: translateX(0); }
    .au-user-name { display: none; }
}

/* ============ 认证页（登录 / 注册 / 找回密码 / OAuth 错误） ============ */
.au-auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    background: linear-gradient(135deg, #5b6cf8 0%, #7c5cd6 55%, #a35dd6 100%);
    overflow-y: auto;
}
.au-auth-page body { overflow: auto; }
.au-auth-card {
    width: 100%;
    max-width: 500px;
    background: var(--au-surface);
    border-radius: 18px;
    box-shadow: 0 18px 48px rgba(23, 29, 43, .28);
    padding: 36px 34px 26px;
}
.au-auth-logo { text-align: center; margin-bottom: 14px; }
.au-auth-logo img { max-height: 52px; }
.au-auth-title { text-align: center; margin-bottom: 26px; }
.au-auth-title h2 { font-size: 24px; color: var(--au-text); font-weight: 700; letter-spacing: .5px; }
.au-auth-title p { color: var(--au-text-3); margin-top: 8px; font-size: 13.5px; }

.au-auth-form { display: flex; flex-direction: column; gap: 16px; }
.au-auth-field { position: relative; }
.au-auth-input {
    width: 100%; height: 46px;
    padding: 0 14px;
    border: 1px solid var(--au-border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--au-text);
    background: #fafbfe;
    outline: none;
    transition: var(--au-transition);
}
.au-auth-input:focus {
    border-color: var(--au-primary);
    background: #fff;
    box-shadow: 0 0 0 3px var(--au-primary-soft);
}
.au-auth-input::placeholder { color: var(--au-text-3); }
.au-auth-row { display: flex; gap: 10px; }
.au-auth-row .au-auth-input { flex: 1; }
.au-auth-captcha { height: 46px; border-radius: 10px; cursor: pointer; flex-shrink: 0; }
.au-auth-code-btn {
    height: 46px; padding: 0 14px;
    border: 1px solid var(--au-primary); color: var(--au-primary);
    background: transparent; border-radius: 10px;
    font-size: 13px; cursor: pointer;
    white-space: nowrap;
    transition: var(--au-transition);
    flex-shrink: 0;
}
.au-auth-code-btn:hover { background: var(--au-primary-soft); }
.au-auth-code-btn[disabled] { opacity: .55; cursor: not-allowed; }

.au-auth-tools {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12.5px;
    margin-top: -4px;
}
.au-auth-tools a { color: var(--au-text-3); }
.au-auth-tools a:hover { color: var(--au-primary); }
.au-auth-tools .au-auth-primary-link { color: var(--au-primary); font-weight: 500; }

.au-auth-submit {
    width: 100%; height: 46px;
    border: 0; border-radius: 10px;
    background: linear-gradient(135deg, var(--au-primary), #8b5cf6);
    color: #fff; font-size: 15px; font-weight: 600; letter-spacing: 2px;
    cursor: pointer;
    transition: var(--au-transition);
    box-shadow: 0 6px 16px color-mix(in srgb, var(--au-primary) 32%, transparent);
}
.au-auth-submit:hover { transform: translateY(-1px); box-shadow: 0 8px 20px color-mix(in srgb, var(--au-primary) 40%, transparent); }
.au-auth-submit:active { transform: translateY(0); }
.au-auth-submit[disabled] { opacity: .65; cursor: not-allowed; transform: none; }

.au-auth-msg {
    display: none;
    padding: 10px 14px;
    margin-bottom: 14px;
    background: #fff3f3; border: 1px solid #fdd;
    border-radius: 8px;
    color: #d34; font-size: 13px;
}
.au-auth-msg.show { display: block; }

.au-auth-oauth-divider {
    text-align: center; margin: 22px 0 16px;
    border-top: 1px solid var(--au-border);
    position: relative;
}
.au-auth-oauth-divider span {
    display: inline-block; padding: 0 14px;
    background: var(--au-surface);
    color: var(--au-text-3); font-size: 12.5px;
    position: relative; top: -9px;
}
.au-auth-oauth { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.au-auth-oauth a {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--au-border);
    border-radius: 999px;
    font-size: 13px;
    background: var(--au-surface);
    transition: var(--au-transition);
}
.au-auth-oauth a:hover {
    border-color: var(--au-primary); color: var(--au-primary);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--au-primary) 12%, transparent);
    transform: translateY(-1px);
}

.au-auth-back { text-align: center; margin-top: 16px; font-size: 13px; }
.au-auth-back a { color: var(--au-primary); }
.au-auth-back a:hover { text-decoration: underline; }
.au-auth-footer { text-align: center; margin-top: 22px; color: var(--au-text-3); font-size: 12px; line-height: 1.9; }
.au-auth-footer a { color: var(--au-text-3); }
.au-auth-footer a:hover { color: var(--au-primary); }

/* 认证页提示卡片（注册关闭 / OAuth 错误） */
.au-auth-error { text-align: center; padding: 14px 4px 4px; }
.au-auth-error-icon { font-size: 58px; color: #ff6b6b; margin-bottom: 16px; }
.au-auth-error-title { font-size: 17px; color: var(--au-text); margin-bottom: 10px; font-weight: 600; }
.au-auth-error-msg { font-size: 14px; color: var(--au-text-2); margin-bottom: 26px; line-height: 1.7; }
.au-auth-error-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.au-auth-link-btn {
    display: inline-flex; align-items: center; gap: 6px;
    height: 40px; padding: 0 22px;
    border-radius: 10px;
    border: 1px solid var(--au-border);
    color: var(--au-text);
    font-size: 13.5px;
    background: var(--au-surface);
    transition: var(--au-transition);
}
.au-auth-link-btn:hover { border-color: var(--au-primary); color: var(--au-primary); }
.au-auth-link-btn.au-auth-link-primary {
    background: var(--au-primary); border-color: var(--au-primary); color: #fff;
}
.au-auth-link-btn.au-auth-link-primary:hover { background: var(--au-primary-hover); }

@media (max-width: 480px) {
    .au-auth-card { padding: 26px 20px 20px; }
    .au-auth-title h2 { font-size: 20px; }
    .au-auth-row { flex-wrap: wrap; }
    .au-auth-captcha { width: 120px; height: 42px; }
    .au-auth-oauth { flex-direction: column; }
    .au-auth-oauth a { justify-content: center; }
    .au-auth-error-actions { flex-direction: column; align-items: center; }
}