/* 内页浅色主题（首页除外，首页仍用 home.css 深色蓝调） */

:root {
    --app-bg: #f4f7fb;
    --app-bg-soft: #eef3f9;
    --app-panel: #ffffff;
    --app-border: #e2e8f0;
    --app-text: #0f172a;
    --app-muted: #64748b;
    --app-accent: #1576e8;
}

html:has(.page-app),
body:has(.page-app),
.page-app {
    background: var(--app-bg) !important;
}

.page-app.layui-layout-admin {
    background: var(--app-bg);
    min-height: 100vh;
}

.page-app .layui-header {
    background: #ffffff !important;
    border-bottom: 1px solid var(--app-border);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
    overflow: visible !important;
    z-index: 1200 !important;
}

.page-app .layui-body {
    background: var(--app-bg) !important;
    color: var(--app-text);
    z-index: 1 !important;
}

.page-app .layui-nav,
.page-app .layui-nav-child,
.page-app .layui-nav-child dd {
    background-color: transparent !important;
}

.page-app .layui-header .layui-nav .layui-nav-item > a,
.page-app .layui-logo,
.page-app .layui-logo .site-brand-name,
.page-app .layui-logo a {
    color: #1e3a5f !important;
}

.page-app .layui-header .layui-nav .layui-nav-item > a:hover,
.page-app .layui-header .layui-nav .layui-this > a {
    color: var(--app-accent) !important;
    background-color: rgba(21, 118, 232, 0.08) !important;
}

.page-app .layui-nav .layui-this:after {
    background-color: var(--app-accent) !important;
}

.page-app .layui-nav-child {
    background-color: #fff !important;
    border: 1px solid var(--app-border);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.page-app .layui-nav-child dd a {
    color: #334155 !important;
}

.page-app .layui-nav-child dd a:hover {
    background: #f1f5f9 !important;
    color: var(--app-accent) !important;
}

.page-app .layui-footer.site-footer {
    left: 0 !important;
    background: #ffffff !important;
    border-top: 1px solid var(--app-border) !important;
    color: var(--app-muted) !important;
}

.page-app .layui-footer.site-footer p {
    color: var(--app-muted) !important;
}

/* 关于页 */
.page-app .about-container {
    max-width: 880px;
    margin: 0 auto;
    padding: 12px 8px 28px;
}

.page-app .about-content {
    background: var(--app-panel);
    border: 1px solid var(--app-border);
    border-radius: 16px;
    padding: 28px 24px;
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
    color: var(--app-text);
}

.page-app .about-content h2 {
    color: #0f172a;
    margin-bottom: 16px;
}

.page-app .about-content,
.page-app .about-content .layui-text,
.page-app .about-content p,
.page-app .about-content li {
    color: #334155;
    line-height: 1.8;
}

.page-app .about-content b,
.page-app .about-content strong {
    color: #0f172a;
}

/* 对话页：浅色可读 */
.page-app .hbm-chat-shell {
    background: #fff;
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.06);
    border: 1px solid var(--app-border);
    border-radius: 14px;
}

.page-app .hbm-chat-sidebar {
    background: linear-gradient(180deg, #f7f9fc 0%, #eef3f9 100%);
    border-right-color: var(--app-border);
}

.page-app .hbm-agent-selector h3,
.page-app .hbm-chat-history h3,
.page-app .hbm-chat-header h2 {
    color: #0f172a;
}

.page-app .hbm-chat-main {
    background: #fff;
}

.page-app .hbm-chat-header {
    background: #fbfdff;
    border-bottom-color: #eef2f7;
}

.page-app .hbm-chat-messages {
    background: #f8fafc;
}

.page-app .hbm-chat-input {
    background: #fff;
    border-top-color: #eef2f7;
}

.page-app .hbm-input-container textarea {
    background: #fff;
    border-color: #d7e3f4;
    color: #0f172a;
}

.page-app .hbm-input-container textarea::placeholder {
    color: #94a3b8;
}

.page-app .hbm-welcome {
    background: #fff;
    border-color: #e2e8f0;
    color: #475569;
}

.page-app .hbm-welcome h3 {
    color: #0f172a;
}

.page-app .message.user {
    background: linear-gradient(135deg, #1576e8, #1d4ed8);
    color: #fff;
}

.page-app .message.assistant {
    background: #fff;
    color: #202124;
    border-color: #e2e8f0;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}

.page-app .message.assistant .message-content,
.page-app .message.assistant .message-content p,
.page-app .message.assistant .message-content li,
.page-app .message.assistant .main-answer-content {
    color: #202124 !important;
}

.page-app .message.system {
    background: #e8f0fe;
    color: #1a73e8;
    border-color: #c2d7ff;
}

.page-app .hbm-history-item {
    background: #fff;
    border-color: #e2e8f0;
}

.page-app .hbm-history-item:hover,
.page-app .hbm-history-item.active {
    border-color: var(--app-accent);
}

.page-app .hbm-history-title {
    color: #1e293b;
}

.page-app .hbm-history-meta,
.page-app .hbm-history-empty,
.page-app .hbm-chat-info {
    color: #94a3b8;
}

.page-app .hbm-action-primary {
    background: #1576e8;
    color: #fff;
}

.page-app .hbm-action-warm {
    background: #fff4e8;
    color: #b45309;
    border: 1px solid #f3d2a8;
}

.page-app .hbm-login-tip {
    background: #e8f0fe;
    color: #1e3a5f;
}

.page-app .hbm-login-tip a {
    color: var(--app-accent);
}

.page-app .dify-references-container {
    background: #f8fafc;
    border-color: #e2e8f0;
}

.page-app .dify-reference-item {
    background: #fff;
}

.page-app .copy-btn {
    background: #f8fafc;
    border-color: #e2e8f0;
    color: #475569;
}

.page-app .hbm-history-delete:hover {
    background: #fef2f2;
    color: #dc2626;
}

/* 登录/注册/个人中心 */
.page-app .layui-card,
.page-app .layui-form,
.page-app .login-container,
.page-app .register-container,
.page-app .profile-container {
    color: var(--app-text);
}

.page-app .layui-card {
    background: var(--app-panel);
    border: 1px solid var(--app-border);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.page-app .layui-card-header,
.page-app .layui-form-label,
.page-app h2,
.page-app h3 {
    color: #0f172a !important;
}

.page-app .layui-input,
.page-app .layui-textarea,
.page-app .layui-select {
    background: #fff !important;
    border-color: #d7e3f4 !important;
    color: var(--app-text) !important;
}

.page-app .login-container,
.page-app .register-container,
.page-app .profile-container {
    background: #fff !important;
    border: 1px solid var(--app-border);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04) !important;
    color: var(--app-text);
}

.page-app .login-title,
.page-app .register-title,
.page-app .profile-title {
    color: #0f172a !important;
}

.page-app .form-group label {
    color: #475569 !important;
}

.page-app .form-group input {
    background: #fff !important;
    border-color: #d7e3f4 !important;
    color: var(--app-text) !important;
}

.page-app .mobile-nav-toggle {
    color: #1e3a5f;
}

.page-app .mobile-nav-toggle:hover {
    background-color: rgba(21, 118, 232, 0.08);
}