/* ============================================================
   LA-n 通知 · 设计系统 v3
   主题：深红 #7b2b2b × 黑 × 白。
   所有 class 名与 v1/v2 兼容（模板无需改动）。
   ============================================================ */
:root {
    --primary: #7b2b2b;
    --primary-2: #4a1515;
    --primary-ink: #5c1f1f;
    --danger: #c0392b;
    --danger-2: #992d22;
    --ok: #16a34a;
    --warn: #b45309;
    --text: #111111;
    --muted: #6b7280;
    --border: #e5e7eb;
    --bg: #f7f7f7;
    --card: #ffffff;
    /* 扁平化：小圆角、极轻阴影、纯色（去渐变） */
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);
    --shadow: 0 2px 8px rgba(0, 0, 0, .06);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, .10);
    --grad: #7b2b2b;
    --grad-soft: #f5f5f5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* 页面纵向布局：内容不足一屏时页脚也贴在视口底部 */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC",
                 "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 15px;
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    background: var(--bg);
}

a { color: var(--primary-ink); text-decoration: none; }
a:hover { color: var(--primary); text-decoration: none; }
h1 { font-size: 26px; margin: 0; letter-spacing: .5px; }
h2 { font-size: 21px; margin: 0 0 14px; letter-spacing: .3px; }
h3 { font-size: 16px; margin: 0 0 10px; }
.muted { color: var(--muted); font-size: 13px; }
.mono { font-family: Consolas, "Courier New", monospace; font-size: 12px; word-break: break-all; }
.mt { margin-top: 18px; }
.spacer { flex: 1; }
code { background: #f5ecec; color: var(--primary-ink); padding: 2px 6px; border-radius: 6px; font-size: 12px; }

/* ============ 导航栏 ============ */
.navbar {
    position: sticky; top: 0; z-index: 50;
    background: var(--card);

    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1120px; margin: 0 auto; padding: 10px 20px;
    display: flex; align-items: center; gap: 22px;
}
.brand {
    font-weight: 800; font-size: 19px; white-space: nowrap; letter-spacing: .3px;
    color: var(--primary);
    display: inline-flex; align-items: center; gap: 6px;
}
.nav-links { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav-links a {
    color: #374151; padding: 7px 14px; border-radius: 6px; font-size: 14px; font-weight: 500;
    transition: all .15s;
}
.nav-links a:hover { color: var(--primary-ink); background: #f5ecec; }
.nav-admin { font-weight: 600; }

.user-chip-wrap { position: relative; display: flex; align-items: center; gap: 8px; }
.user-name { font-size: 14px; font-weight: 500; color: var(--text); }
.user-name:hover { color: var(--primary-ink); }
.avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--grad); color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; flex: 0 0 auto;
}
a.avatar:hover { opacity: .88; }
@keyframes pop { from { opacity: 0; } to { opacity: 1; } }

/* ============ 布局 ============ */
.container { max-width: 1120px; margin: 30px auto 64px; padding: 0 20px; }
.footer { text-align: center; color: var(--muted); padding: 26px 0 34px; font-size: 13px; }
.page-head {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; flex-wrap: wrap; margin-bottom: 20px;
}
.page-head h1 { color: var(--primary); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 18px;
}
.card h3 { border-left: 3px solid var(--primary); padding-left: 10px; font-weight: 600; }
.empty {
    text-align: center; padding: 52px 20px; color: var(--muted); font-size: 15px;
}
.empty a { font-weight: 600; }
.error-card .error-code {
    font-size: 58px; margin-bottom: 10px; color: var(--primary);
}

/* ============ Flash 提示 ============ */
.flash-stack {
    position: fixed; top: 66px; right: 18px; z-index: 100;
    display: flex; flex-direction: column; gap: 8px; max-width: 360px;
}
.flash {
    padding: 12px 18px; border-radius: var(--radius); font-size: 14px;
    box-shadow: var(--shadow-lg); animation: slideIn .25s ease;
    border-left: 4px solid;
}
.flash-success { border-color: var(--ok); background: #f0fdf4; color: #166534; }
.flash-danger  { border-color: var(--danger); background: #fef2f2; color: #991b1b; }
.flash-warning { border-color: var(--warn); background: #fffbeb; color: #92400e; }
.flash-info    { border-color: var(--primary); background: #faf5f5; color: var(--primary-ink); }
@keyframes slideIn { from { opacity: 0; } to { opacity: 1; } }

/* ============ 按钮（扁平化：无阴影、小圆角、纯色） ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 5px;
    padding: 8px 16px; border-radius: 6px; border: 1px solid var(--border);
    background: #fff; color: var(--text); font-size: 14px; cursor: pointer;
    font-family: inherit; transition: background .15s, border-color .15s; white-space: nowrap;
}
.btn:hover { border-color: #cfcfcf; background: #fafafa; }
.btn-primary {
    background: var(--primary); border: 1px solid var(--primary); color: #fff; font-weight: 500;
}
.btn-primary:hover { background: var(--primary-2); border-color: var(--primary-2); }
.btn-danger {
    background: var(--danger); border: 1px solid var(--danger); color: #fff;
}
.btn-danger:hover { background: var(--danger-2); border-color: var(--danger-2); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--primary-ink); }
.btn-ghost:hover { background: #f5f5f5; border-color: transparent; }
.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 6px; }
.btn-block { width: 100%; }

/* ============ 表单 ============ */
.input {
    width: 100%; padding: 10px 13px; border-radius: var(--radius);
    border: 1px solid var(--border); background: #fff;
    font-size: 14px; font-family: inherit; color: var(--text);
    transition: border-color .15s;
}
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(123, 43, 43, .16); }
.input-sm { padding: 5px 9px; font-size: 13px; border-radius: var(--radius); width: auto; }
.input.num { width: 88px; }
textarea.input { resize: vertical; line-height: 1.7; }
label { font-size: 14px; }
.form-stack { display: flex; flex-direction: column; gap: 13px; }
/* 弹窗内表单超高时可滚动，避免底部按钮（如分享弹窗的生成按钮）被挤出视口 */
.modal .form-stack { flex: 1 1 auto; min-height: 0; overflow-y: auto; }
/* 弹窗内的提示条：紧凑、去掉 toast 阴影与滑入动画 */
.modal .flash { padding: 8px 12px; font-size: 13px; animation: none; }
/* 分享弹窗容量提示：轻量小条，不挤占弹窗空间、不挡按钮 */
.share-hint {
    background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe;
    border-radius: 8px; padding: 6px 10px; font-size: 12px; line-height: 1.5;
}
body.dark .share-hint { background: #16202b; color: #93c5fd; border-color: #1e3a5f; }
.form-stack label { display: flex; flex-direction: column; gap: 6px; }
.search-form { display: flex; gap: 8px; align-items: center; }
.search-form .input { width: 250px; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.kv { width: 100%; border-collapse: collapse; font-size: 14px; }
.kv th { text-align: left; color: var(--muted); font-weight: 500; padding: 7px 10px 7px 0; width: 96px; vertical-align: top; }
.kv td { padding: 7px 0; }

/* ============ 徽章 ============ */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 6px;
    font-size: 12px; font-weight: 600; line-height: 1.5;
}
.role-admin  { background: #fde8e8; color: #7b2b2b; }
.role-editor { background: #e5e5e5; color: #111111; }
.role-user   { background: #f1f1f1; color: #4b5563; }
.role-premium { background: #fef3c7; color: #92400e; }
.badge-off   { background: #f1f1f1; color: #9ca3af; }
.badge-me    { background: #d1fae5; color: #047857; }

/* ============ 进度条 ============ */
.progress {
    height: 10px; background: #e8e8e8; border-radius: 6px;
    overflow: hidden; margin: 6px 0;
}
.progress.mini { height: 7px; width: 120px; display: inline-block; vertical-align: middle; margin-right: 6px; }
.progress-fill {
    height: 100%; border-radius: 6px;
    background: var(--grad);
    transition: width .5s ease;
}
.progress-warn .progress-fill { background: #d97706; }

/* ============ 通知卡片 ============ */
.blog-card { padding: 24px 26px; }
.blog-card:hover { border-color: var(--primary); }
.blog-head h2 {
    margin-bottom: 5px; font-size: 22px; line-height: 1.4;
}
.blog-meta { color: var(--muted); font-size: 13px; margin-bottom: 13px; }
.blog-content {
    line-height: 1.9; font-size: 15px; word-break: break-word;
    border-top: 1px dashed var(--border); padding-top: 13px;
}
.post-img {
    max-width: 100%; max-height: 460px; border-radius: var(--radius);
    display: block; margin: 10px 0;
}
.blog-actions {
    display: flex; align-items: center; gap: 10px;
    border-top: 1px dashed var(--border); padding-top: 13px; margin-top: 15px;
}
.blog-actions form { display: inline-flex; margin: 0; }
.like-btn {
    border: none; background: none; cursor: pointer; font-size: 14px;
    padding: 6px 12px; border-radius: 6px; font-family: inherit;
    transition: all .15s; color: var(--muted);
    display: inline-flex; align-items: center; gap: 5px;
}
.like-btn:hover { background: #fde8e8; color: var(--primary-ink); }
.like-btn.liked { background: #fde8e8; color: var(--primary); font-weight: 600; }
/* 通知下方的点赞 / 评论小图标（内联 SVG，纯色扁平，非 emoji） */
.ico { width: 15px; height: 15px; fill: currentColor; flex: 0 0 auto; }
.blog-stat {
    display: inline-flex; align-items: center; gap: 5px;
    background: none; border: none; cursor: pointer; font-family: inherit;
    font-size: 14px; color: var(--muted); padding: 6px 10px; border-radius: 6px;
}
.blog-stat:hover { background: #f5f5f5; color: var(--primary-ink); }

/* ============ 评论 ============ */
.comments { margin-top: 14px; border-top: 1px solid var(--border); padding-top: 10px; }
.comments summary { cursor: pointer; font-size: 14px; color: var(--muted); font-weight: 600; }
.comment-list { margin: 12px 0; display: flex; flex-direction: column; gap: 8px; }
.comment-item {
    display: flex; justify-content: space-between; gap: 10px; align-items: flex-start;
    background: #fafafa; border-radius: var(--radius); padding: 10px 14px;
    border: 1px solid #f1f1f1;
}
.comment-author { font-weight: 600; color: var(--primary-ink); margin-right: 8px; font-size: 14px; }
.comment-text { font-size: 14px; word-break: break-word; }
.comment-form { display: flex; gap: 10px; align-items: flex-start; }
.comment-form textarea { flex: 1; }
.comment-side form { margin: 0; }

/* ============ 分页 ============ */
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin: 28px 0 8px; }
.pager .btn { border-radius: 6px; }
.page-info { color: var(--muted); font-size: 14px; }

/* ============ 认证页 ============ */
.auth-body {
    background: #2b1212;
}
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
    width: 100%; max-width: 410px; text-align: center;
    background: var(--card);
    border-radius: var(--radius);
    padding: 40px 36px; animation: pop .3s ease;
}
.auth-card h1 { margin: 6px 0 4px; font-size: 24px; }
.auth-form { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; text-align: left; }
.auth-form label { display: flex; flex-direction: column; gap: 6px; }
.auth-foot { margin-top: 20px; font-size: 14px; color: var(--muted); }
.auth-foot a { font-weight: 600; }

/* ============ 登录页网站介绍 ============ */
.site-intro {
    font-size: 14px; color: var(--muted); line-height: 1.65;
    white-space: pre-line; text-align: center;
    margin: 12px 0 4px; padding: 10px 14px;
    background: rgba(127, 127, 127, .06); border-radius: var(--radius);
    max-height: 170px; overflow-y: auto;
}

/* ============ 登录页备案号 ============ */
.auth-icp {
    margin-top: 16px; padding-top: 14px;
    border-top: 1px solid var(--border);
    text-align: center; font-size: 12px; color: var(--muted);
}
.auth-icp a { color: var(--muted); text-decoration: none; }
.auth-icp a:hover { color: var(--text); }
.auth-icp-plain {
    margin-top: 8px; text-align: center; font-size: 12px; color: var(--muted);
    word-break: break-all;
}

/* ============ 编辑器 ============ */
.editor-form { padding: 24px 26px; }
.field-label { font-weight: 600; font-size: 14px; color: var(--text); }
.editor-toolbar { display: flex; align-items: center; gap: 8px; margin: 16px 0 8px; }
.editor-form textarea { min-height: 260px; }
.editor-foot { display: flex; gap: 10px; margin-top: 16px; }
.preview-box {
    margin-top: 14px; border: 1px solid var(--border); border-radius: var(--radius);
    background: #fafafa; padding: 14px 16px;
}
.preview-title {
    font-size: 12px; color: var(--muted); margin-bottom: 8px;
    text-transform: uppercase; letter-spacing: 1px;
}

/* 图片选择弹窗 */
.modal-backdrop {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(0, 0, 0, .55);
    display: flex; align-items: center; justify-content: center; padding: 20px;
}
/* 关键：hidden 属性必须优先生效，否则 JS 关闭弹窗无效（display 会覆盖 hidden） */
.modal-backdrop[hidden] { display: none !important; }
.modal {
    background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg);
    width: 100%; max-width: 720px; max-height: 80vh;
    display: flex; flex-direction: column; padding: 18px 20px;
    animation: pop .18s ease;
    overflow: hidden;
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.modal-head h3 { margin: 0; }
.img-picker-tip { margin-bottom: 10px; }
.img-picker-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px; overflow-y: auto; padding: 4px;
}
.img-pick {
    border: 2px solid transparent; border-radius: var(--radius); overflow: hidden;
    cursor: pointer; aspect-ratio: 1; background: #f1f1f1; padding: 0;
    transition: border-color .15s;
}
.img-pick:hover { border-color: var(--primary); }
.img-pick img { width: 100%; height: 100%; object-fit: cover; display: block; }
.modal-foot { display: flex; justify-content: flex-end; margin-top: 10px; }

/* ============ 文件页 ============ */
.crumbs {
    display: flex; align-items: center; flex-wrap: wrap; gap: 4px;
    font-size: 14px; margin-bottom: 12px;
    background: var(--grad-soft); border-radius: var(--radius); padding: 8px 12px;
}
.crumbs a { font-weight: 600; color: var(--primary-ink); }
.crumb-sep { color: #c0a8a8; }
.crumb-cur { color: var(--muted); }
.anti-cover-label { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--muted); cursor: pointer; }
.anti-cover-label input { accent-color: var(--primary); }
.folder-thumb { background: var(--grad-soft); font-size: 15px; font-weight: 600; color: var(--muted); letter-spacing: 1px; }
.quota-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.quota-text { font-size: 14px; }
.quota-bar { flex: 1; min-width: 180px; margin: 0; }
.upload-zone {
    border: 2px dashed #d8b8b8; border-radius: var(--radius);
    text-align: center; padding: 30px 16px; color: var(--muted);
    display: flex; flex-direction: column; align-items: center; gap: 9px;
    transition: all .2s; background: var(--grad-soft);
}
.upload-zone.dragover { border-color: var(--primary); background: #faf5f5; }
.upload-icon { font-size: 14px; font-weight: 600; color: var(--primary); letter-spacing: 1px; }
/* 隐藏的文件选择框：不能用 hidden 属性（label 点击无法触发），用视觉隐藏 */
.file-input-hidden {
    position: absolute; width: 1px; height: 1px;
    opacity: 0; overflow: hidden; clip: rect(0 0 0 0);
}
.upload-tip { font-size: 12px; }
.upload-progress { width: 100%; max-width: 420px; }
.upload-pick { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: center; }
.upload-pick .input-sm { width: auto; }
.upload-msg { font-size: 13px; min-height: 18px; }
.upload-msg .ok { color: var(--ok); }
.upload-msg .err { color: var(--danger); }

.file-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px;
}
.file-card { display: flex; flex-direction: column; gap: 8px; margin-bottom: 0; padding: 14px; }
.file-card:hover { border-color: var(--primary); }
.file-thumb {
    height: 130px; border-radius: var(--radius); overflow: hidden;
    background: #f1f1f1; display: flex; align-items: center; justify-content: center;
}
.file-thumb img { width: 100%; height: 100%; object-fit: cover; }
.file-icon { font-size: 20px; font-weight: 700; color: var(--muted); letter-spacing: 1px; }
.file-name { font-weight: 600; font-size: 14px; word-break: break-all; line-height: 1.4; }
.file-meta { font-size: 12px; }
.file-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

/* ============ 文件批量选择操作 ============ */
.file-card { position: relative; }
.file-check {
    position: absolute; top: 8px; right: 8px; z-index: 2;
    display: inline-flex; align-items: center; cursor: pointer;
}
.file-check input { width: 17px; height: 17px; accent-color: var(--primary); cursor: pointer; }
.batch-bar {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    background: var(--grad-soft); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 10px 14px; margin-bottom: 14px; font-size: 14px;
}
.batch-check-all { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; cursor: pointer; }
.batch-check-all input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }

/* ============ 书签 ============ */
.share-link-list { max-height: 220px; overflow-y: auto; margin: 8px 0; }
.share-link-item { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
.share-link-item span { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }

/* ============ 聊天室 ============ */
.chat-box { max-height: 60vh; overflow-y: auto; padding: 14px 18px; }
.chat-msg { padding: 9px 12px; border-radius: var(--radius); margin-bottom: 8px; background: #f7f7f7; }
.chat-msg.mine { background: var(--grad-soft); }
/* 黑夜模式：他人消息白框适配 */
body.dark .chat-msg { background: #1f1f1f; border: 1px solid #333; }
body.dark .chat-msg.mine { background: rgba(123, 43, 43, .28); border-color: rgba(123, 43, 43, .45); }
.chat-head { display: flex; align-items: center; gap: 8px; margin-bottom: 3px; flex-wrap: wrap; }
.chat-name { font-weight: 700; font-size: 13px; }
.chat-time { font-size: 11px; }
.chat-ops { margin-left: auto; display: flex; gap: 4px; align-items: center; position: relative; }
.chat-ops form { margin: 0; }
.chat-menu {
    position: absolute; right: 0; top: calc(100% + 4px); z-index: 30;
    min-width: 106px; padding: 4px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow-lg);
    display: flex; flex-direction: column;
}
.chat-menu[hidden] { display: none; }
.chat-menu button {
    width: 100%; text-align: left; padding: 7px 10px; border: none; background: none;
    font-family: inherit; font-size: 13px; color: var(--text); cursor: pointer;
    border-radius: 6px;
}
.chat-menu button:hover { background: var(--grad-soft); color: var(--primary-ink); }
.chat-menu form { width: 100%; }

/* 共享工具列表（卡片式） */
.tool-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
}
.tool-card { display: flex; flex-direction: column; gap: 8px; margin-bottom: 0; padding: 16px; }
.tool-name {
    font-weight: 600; font-size: 14px; word-break: break-all; line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.tool-note {
    font-size: 13px; color: var(--primary-ink); line-height: 1.6;
    padding: 6px 8px; background: var(--grad-soft); border-radius: 6px;
}
.tool-note-form { display: flex; gap: 6px; align-items: center; margin-top: 2px; }
.tool-note-form .input { flex: 1 1 auto; min-width: 0; }
.tool-add-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.tool-add-row input[type="file"] { flex: 1 1 220px; min-width: 0; padding: 6px 8px; }
.tool-add-row .input-sm[type="text"] { flex: 1 1 240px; min-width: 0; }
.tool-add-tip { font-size: 12px; margin-top: 6px; }
.tool-meta { font-size: 12px; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.tool-ops { display: flex; align-items: center; gap: 6px; margin-top: auto; flex-wrap: wrap; }
.tool-ops form { margin: 0; }
@media (max-width: 480px) { .tool-grid { grid-template-columns: 1fr; } }

/* 小游戏（纯前端静态） */
.game-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.game-panel[hidden] { display: none; }
.game-bar {
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
    margin-bottom: 12px; font-size: 14px;
}
.game-score { color: var(--primary); font-size: 16px; }
.game-stage { width: 100%; max-width: 440px; }
.game-stage canvas {
    width: 100%; height: auto; display: block; touch-action: none;
    background: #141414; border: 1px solid var(--border); border-radius: var(--radius);
}
.game-hint { margin-top: 10px; font-size: 13px; }
.game-sound { margin-left: auto; }
.game-pad {
    display: grid; gap: 6px; justify-content: center; margin-top: 12px;
}
.game-pad-3 { grid-template-columns: repeat(3, 46px); }
.game-pad .btn { padding: 8px 0; font-size: 15px; }
.game-over {
    margin-top: 12px; padding: 9px 12px; font-size: 14px;
    background: var(--grad-soft); border: 1px solid var(--border); border-radius: var(--radius);
}
/* 2048 新方块出现动画 */
@keyframes tilePop { from { transform: scale(.72); opacity: .5; } to { transform: scale(1); opacity: 1; } }
.g2048-cell.pop { animation: tilePop .12s ease-out; }
/* 扫雷 */
.mine-grid {
    display: grid; grid-template-columns: repeat(9, 1fr); gap: 3px;
    width: 100%; max-width: 380px; margin-top: 12px;
    touch-action: manipulation; user-select: none;
}
.mine-cell {
    aspect-ratio: 1 / 1; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); background: #e9e9e9; color: var(--text);
    border-radius: 4px; font-weight: 700; font-size: 15px; cursor: pointer;
    font-family: inherit; padding: 0; line-height: 1;
}
.mine-cell:hover { background: #dedede; }
.mine-cell.open { background: #f7f7f7; cursor: default; border-color: #eee; }
.mine-cell.flag { background: #fdf0d5; }
.mine-cell.boom { background: var(--danger); }
body.dark .mine-cell { background: #232323; border-color: #333; color: var(--text); }
body.dark .mine-cell.open { background: #161616; }
body.dark .mine-cell.flag { background: #3a2f14; }
@media (max-width: 480px) {
    .mine-cell { font-size: 13px; }
    .game-sound { margin-left: 0; }
}
.g2048-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
    width: 100%; max-width: 380px; touch-action: none; user-select: none;
}
.g2048-cell {
    aspect-ratio: 1 / 1; display: flex; align-items: center; justify-content: center;
    background: #efefef; border-radius: 6px; font-weight: 700; font-size: 22px; color: #6b7280;
}
.g2048-cell.v2 { background: #ececec; color: #444; }
.g2048-cell.v4 { background: #e6ddc8; color: #444; }
.g2048-cell.v8 { background: #f0b070; color: #fff; }
.g2048-cell.v16 { background: #ef9440; color: #fff; }
.g2048-cell.v32 { background: #ec7430; color: #fff; }
.g2048-cell.v64 { background: #e05522; color: #fff; }
.g2048-cell.v128 { background: #dcc75f; color: #fff; font-size: 19px; }
.g2048-cell.v256 { background: #d3b446; color: #fff; font-size: 19px; }
.g2048-cell.v512 { background: #c8a334; color: #fff; font-size: 19px; }
.g2048-cell.v1024 { background: #bd9225; color: #fff; font-size: 16px; }
.g2048-cell.v2048 { background: #b0821a; color: #fff; font-size: 16px; }
.g2048-cell.vbig { background: var(--primary); color: #fff; font-size: 16px; }
body.dark .g2048-cell { background: #1f1f1f; color: #9ca3af; }
@media (max-width: 480px) {
    .g2048-cell { font-size: 18px; }
    .game-bar { gap: 10px; font-size: 13px; }
}

/* 远程开机设备列表（卡片式，窄屏也不会被裁掉） */
.device-list { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.device-item {
    display: flex; align-items: center; justify-content: space-between;
    gap: 10px; flex-wrap: wrap; padding: 10px 12px;
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
}
.device-info { min-width: 0; flex: 1 1 180px; }
.device-name { font-weight: 600; font-size: 14px; }
.device-meta { margin-top: 2px; }
.device-ops { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; flex-wrap: wrap; }
.device-ops form { margin: 0; }
/* 在线状态徽章（圆角 4px、1px 描边，跟全站扁平规则一致；不额外引入颜色，用主色/灰/绿） */
.device-state {
    display: inline-block; margin-left: 6px; padding: 1px 7px;
    font-size: 12px; font-weight: 600; line-height: 1.6;
    border: 1px solid var(--border); border-radius: 4px; color: var(--muted);
    vertical-align: middle;
}
.device-state.state-on { color: #166534; border-color: #86efac; }
.device-state.state-off { color: var(--muted); }
.device-state.state-unknown { color: var(--muted); border-style: dashed; }
.device-seen { font-size: 12px; margin-top: 2px; }
/* 探测中：徽章先标灰，探回来再恢复——首屏一眼能看出"这还是上次的旧值" */
.device-state.is-stale { opacity: .55; }
/* 刚点过开机/关机/重启：只对这台设备做轻量确认，到位即停（占满一行，窄屏也不挤） */
.device-watch {
    flex: 1 1 100%; margin-top: 2px; padding-top: 6px;
    font-size: 12px; color: var(--muted); border-top: 1px dashed var(--border);
}
.device-watch.watch-ok { color: var(--ok); }
.device-watch.watch-warn { color: var(--warn); }
.device-watch .btn { margin-left: 6px; }
.muted.note-warn { color: var(--warn); }
/* 「给新电脑开权限」折叠块：默认收起，不打扰日常使用 */
.pc-help { margin-top: 14px; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px; background: var(--card); }
.pc-help summary { cursor: pointer; font-size: 13px; font-weight: 600; }
.pc-help[open] summary { margin-bottom: 8px; }
.pc-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.pc-cmd {
    margin: 8px 0 0; padding: 10px 12px; font-size: 12px; line-height: 1.6;
    background: #f7f7f7; border: 1px solid var(--border); border-radius: var(--radius);
    white-space: pre-wrap; word-break: break-all; max-height: 320px; overflow: auto;
}
.device-user-form { display: flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.device-user-form .input-sm { padding: 5px 8px; font-size: 13px; width: 200px; }
@media (max-width: 480px) {
    .device-item { align-items: flex-start; }
    .device-ops { width: 100%; }
    .device-ops form, .device-ops .btn { flex: 1 1 auto; }
    .device-user-form { width: 100%; }
    .device-user-form .input-sm { flex: 1; width: auto; }
}

/* 后台「功能管理」：卡片式（不再是一张很宽的长表格），保存条固定在屏幕底部 */
.feature-toolbar {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 10px 14px; flex-wrap: wrap; margin-bottom: 12px;
}
.feature-cards { display: flex; flex-direction: column; gap: 10px; padding-bottom: 64px; }
.feature-card {
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 10px 12px;
}
.feature-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.feature-desc { font-size: 12px; margin-top: 2px; }
.feature-controls { display: flex; gap: 10px 14px; flex-wrap: wrap; margin: 8px 0 6px; }
.fc-item { display: flex; flex-direction: column; gap: 3px; font-size: 12px; }
.fc-item select { min-width: 168px; }
.feature-state { font-size: 12px; line-height: 1.7; }
.feature-savebar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    display: flex; align-items: center; justify-content: space-between;
    gap: 10px; flex-wrap: wrap; padding: 10px 16px;
    background: var(--card); border-top: 1px solid var(--border);
}
@media (max-width: 720px) {
    .feature-cards { padding-bottom: 92px; }
    .fc-item { flex: 1 1 44%; }
    .fc-item select { min-width: 0; width: 100%; }
}

.chat-content { font-size: 14px; line-height: 1.6; word-break: break-word; white-space: pre-wrap; }
.chat-img { max-width: 260px; max-height: 200px; border-radius: 8px; margin: 4px 0; display: block; }
.chat-form { display: flex; gap: 10px; margin-top: 12px; }
.chat-form .input { flex: 1; }
.chat-input-wrap { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.chat-input-row { display: flex; gap: 8px; align-items: center; }
.chat-input-row .input { flex: 1; }
.chat-img-preview {
    display: flex; align-items: center; gap: 10px;
    background: #f7f7f7; border: 1px dashed var(--border);
    border-radius: var(--radius); padding: 8px 12px;
}
.chat-img-preview-img { max-width: 80px; max-height: 56px; border-radius: 6px; object-fit: cover; }
.chat-img-preview-name { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.room-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.room-card { margin-bottom: 0; }
.room-name { font-size: 16px; font-weight: 700; }
.room-meta { font-size: 12px; margin: 6px 0 10px; }
.room-ops { display: flex; gap: 8px; align-items: center; }
.room-ops form { margin: 0; }
.bookmark-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px; margin-top: 12px;
}
.bookmark-card {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 12px 14px; background: #fafafa;
    display: flex; flex-direction: column; gap: 6px;
    transition: border-color .15s;
}
.bookmark-card:hover { border-color: var(--primary); }
.bookmark-title {
    font-weight: 600; font-size: 14px; color: var(--primary-ink);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.bookmark-title:hover { text-decoration: underline; }
.bookmark-url { font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bookmark-ops { display: flex; gap: 6px; align-items: center; margin-top: 2px; }
.bookmark-ops form { margin: 0; }
.file-actions form { margin: 0; }

/* ============ 后台 ============ */
.admin-grid { display: grid; grid-template-columns: 230px 1fr; gap: 20px; align-items: start; }
@media (max-width: 900px) { .admin-grid { grid-template-columns: 1fr; } }
.admin-side {
    position: sticky; top: 74px;
    background: #140a0a;
    border-radius: var(--radius);
    padding: 18px 12px;
}
.admin-title { font-weight: 700; font-size: 15px; padding: 4px 10px 14px; color: #d4b8b8; }
.admin-nav { display: flex; flex-direction: column; gap: 3px; }
@media (max-width: 900px) { .admin-nav { flex-direction: row; flex-wrap: wrap; } .admin-side { position: static; } }
.admin-nav a {
    padding: 10px 12px; border-radius: var(--radius); color: #d4b8b8; font-size: 14px;
    transition: all .15s;
}
.admin-nav a:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.admin-nav a.active {
    background: var(--grad); color: #fff; font-weight: 600;
}
.admin-main { min-width: 0; }
.admin-main h2 { margin-bottom: 16px; }

.stat-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}
.stat-card {
    text-align: center; padding: 20px 14px; margin-bottom: 0;
    background: #fff;
}
.stat-card:hover { border-color: var(--primary); }
.stat-num {
    font-size: 32px; font-weight: 800; color: var(--primary);
}
.stat-num.small-num { font-size: 18px; line-height: 46px; }
.stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }
.mini-list { list-style: none; margin: 0; padding: 0; }
.mini-list li { padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.mini-list li:last-child { border-bottom: none; }

/* 表格 */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
    text-align: left; padding: 10px 12px; color: var(--muted);
    font-size: 13px; border-bottom: 2px solid var(--border); white-space: nowrap;
    background: #fafafa;
}
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr { transition: background .12s; }
.table tbody tr:hover { background: #faf5f5; }
.td-title { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.td-thumb { width: 46px; height: 46px; object-fit: cover; border-radius: var(--radius); }
.ops-cell { white-space: nowrap; }
.ops-cell form, .quota-cell form { margin: 0; }

/* ============ 后台：功能权限弹窗 ============ */
.feature-list {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 10px; max-height: 46vh; overflow-y: auto; margin: 10px 0;
}
.feature-item {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 11px 13px; cursor: pointer; font-size: 13px;
    display: block; background: #fafafa;
    transition: all .15s;
}
.feature-item:hover { border-color: var(--primary); background: #faf5f5; }
.feature-item input { margin-right: 8px; vertical-align: middle; accent-color: var(--primary); }
.feature-item strong { font-size: 14px; }
.feature-item .muted { margin-top: 4px; }

@media (max-width: 640px) {
    .nav-inner { flex-wrap: wrap; gap: 10px; }
    .search-form { flex-wrap: wrap; }
    .search-form .input { flex: 1 1 150px; width: auto; min-width: 0; }
    .editor-toolbar { flex-wrap: wrap; }
    .flash-stack { left: 18px; right: 18px; max-width: none; }
}

/* ============ 小屏适配（窄窗口/手机） ============ */
@media (max-width: 480px) {
    .container { padding: 0 12px; margin-top: 20px; }
    .page-head { flex-direction: column; align-items: stretch; }
    .page-head h1 { font-size: 20px; }
    .page-head .search-form { width: 100%; }
    .card { padding: 14px; border-radius: var(--radius); }
    .blog-card { padding: 14px; }
    .blog-head h2 { font-size: 18px; }
    .blog-actions { flex-wrap: wrap; }
    .modal { padding: 14px 12px; max-height: 86vh; }
    .modal-head h3 { font-size: 15px; }
    .img-picker-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
    .file-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
    .file-actions { gap: 5px; }
    .file-actions .btn-sm { padding: 4px 8px; font-size: 12px; }
    .table th, .table td { padding: 8px 6px; font-size: 12px; }
    .table .btn { padding: 4px 7px; font-size: 12px; }
    .admin-side { padding: 12px 8px; }
    .admin-nav a { padding: 8px 10px; font-size: 13px; }
    .editor-form { padding: 14px; }
    .auth-card { padding: 28px 22px; }
    .user-name { display: none; }
    .quota-row { flex-direction: column; align-items: flex-start; }
    .crumbs { font-size: 12px; }
    /* 页脚：三栏纵向排列居中，避免长邮箱/备案号/版本号互相挤压堆叠 */
    .footer-grid { grid-template-columns: 1fr; gap: 6px; text-align: center; }
    .footer-center { width: 100%; }
    .footer-side { width: 100%; text-align: center; justify-self: center; overflow-wrap: anywhere; }
    /* 长文本防溢出 */
    .mono { overflow-wrap: anywhere; word-break: break-all; }
}

/* ============ 黑夜模式（用户个人设置，纯黑主题） ============ */
body.dark {
    --text: #e5e7eb;
    --muted: #9ca3af;
    --border: #2a2a2a;
    --bg: #0a0a0a;
    --card: #141414;
    --primary: #b04a4a;
    --primary-2: #8c3a3a;
    --primary-ink: #d98a8a;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .5);
    --shadow: 0 6px 22px rgba(0, 0, 0, .6);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, .7);
    --grad: #3a3a3a;
    --grad-soft: #1c1c1c;
    background: #0d0d0d;
}
body.dark .navbar { background: #0f0f0f; border-bottom-color: #222; }
body.dark .brand { color: #f5f5f5; }
body.dark .nav-links a { color: #cbd5e1; }
body.dark .nav-links a:hover { background: #222; color: #fff; }
body.dark .user-name { color: var(--text); }
body.dark .input { background: #1c1c1c; border-color: #333; color: var(--text); }
body.dark .table th { background: #1c1c1c; }
body.dark .table tbody tr:hover { background: #222; }
body.dark .comment-item, body.dark .upload-zone, body.dark .preview-box { background: #1c1c1c; border-color: #2a2a2a; }
body.dark .crumb-cur { color: #9ca3af; }
body.dark .crumbs { background: #1c1c1c; }
body.dark .file-thumb { background: #1c1c1c; }
body.dark .modal { background: #141414; }
body.dark .feature-item { background: #1c1c1c; }
body.dark .mini-list li { border-color: #2a2a2a; }
body.dark .admin-side { background: #0a0a0a; }
body.dark .stat-card { background: #141414; }
body.dark .auth-card { background: rgba(20, 20, 20, .98); color: var(--text); }
body.dark .post-img {}
body.dark .progress { background: #2a2a2a; }
body.dark .btn { background: #1c1c1c; border-color: #333; }
body.dark .btn-ghost { background: transparent; }
body.dark .flash { background: #1c1c1c; }
body.dark .flash-success { background: #10251b; color: #6ee7b7; }
body.dark .flash-danger { background: #2b1212; color: #fca5a5; }
body.dark .flash-warning { background: #2b2112; color: #fcd34d; }
body.dark .flash-info { background: #16202b; color: #93c5fd; }

/* ============ 更多主题（浅色变体：仅换主色与背景） ============ */
body.theme-blue {
    --primary: #1d4ed8;
    --primary-2: #1e3a8a;
    --primary-ink: #1e40af;
    --grad: #2563eb;
    --grad-soft: #eff6ff;
    background: #f8fafc;
    background-attachment: fixed;
}
body.theme-green {
    --primary: #15803d;
    --primary-2: #14532d;
    --primary-ink: #166534;
    --grad: #16a34a;
    --grad-soft: #f0fdf4;
    background: #f8fafc;
    background-attachment: fixed;
}
body.theme-purple {
    --primary: #7e22ce;
    --primary-2: #581c87;
    --primary-ink: #6b21a8;
    --grad: #9333ea;
    --grad-soft: #faf5ff;
    background: #f8fafc;
    background-attachment: fixed;
}

.admin-files-layout { display: flex; gap: 16px; align-items: flex-start; }
.admin-files-tree { flex: 0 0 260px; max-width: 300px; padding: 12px; }
.admin-files-main { flex: 1; min-width: 0; }
.tree-role { font-weight: 700; font-size: 13px; color: var(--muted); margin: 10px 4px 4px; }
.tree-user { margin: 2px 0; }
.tree-user-link {
    display: block; padding: 6px 10px; border-radius: var(--radius); font-size: 14px;
    color: var(--text); text-decoration: none;
}
.tree-user-link:hover { background: #f5ecec; }
.tree-user-link.active { background: var(--grad-soft); color: var(--primary-ink); font-weight: 600; }
.tree-folders { margin: 2px 0 6px 18px; border-left: 2px solid var(--border); padding-left: 10px; }
.tree-folders a {
    display: block; padding: 4px 8px; border-radius: 7px; font-size: 13px;
    color: #4b5563; text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tree-folders a:hover { background: #f5ecec; }
.tree-folders a.active { background: var(--grad-soft); color: var(--primary-ink); font-weight: 600; }
@media (max-width: 860px) {
    .admin-files-layout { flex-direction: column; }
    .admin-files-tree { flex: none; width: 100%; max-width: none; max-height: 240px; overflow-y: auto; }
}
/* ============ 页脚三栏（邮箱 / 备案号 / 版本号） ============ */
/* grid 1fr auto 1fr：备案号严格居中，邮箱靠左、版本号靠右（不受左右内容长度影响） */
.footer-grid {
    display: grid; grid-template-columns: 1fr auto 1fr;
    align-items: center; gap: 16px;
    max-width: 1120px; margin: 0 auto; padding: 0 20px;
}
.footer-side { min-width: 0; overflow-wrap: anywhere; }
.footer-side:first-child { text-align: left; justify-self: start; }
.footer-side:last-child { text-align: right; justify-self: end; }
.footer-center { text-align: center; }
/* 页脚举报入口（低调小图标 + 文字） */
.footer-report {
    background: none; border: none; cursor: pointer;
    font-size: 12px; opacity: .55; padding: 0 2px; vertical-align: 1px;
    margin-left: 14px; /* 与版本号隔开几个空格 */
}
.footer-report:hover { opacity: 1; }

/* 公安备案号徽章（警徽图标） */
.gab-badge {
    width: 16px; height: 17px; vertical-align: -3px; margin-right: 4px;
    display: inline-block;
}

/* ============ 编辑器：图片引用提示（蓝字醒目） ============ */
.hint-blue {
    color: #2563eb; font-weight: 600; background: #eff6ff;
    padding: 2px 8px; border-radius: 6px; border: 1px dashed #93c5fd;
}

/* ============ 网站导航卡片（前台 /nav/） ============ */
.nav-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px; margin-top: 4px;
}
.nav-card {
    display: block; padding: 14px 16px;
    border: 1px solid var(--border); border-radius: var(--radius);
    background: #fff; color: var(--text); text-decoration: none;
    transition: border-color .15s;
}
body.dark .nav-card { background: #1c1c1c; }
.nav-card:hover { border-color: var(--primary); }
.nav-card-name { display: block; font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.nav-card-url { display: block; font-size: 12px; color: var(--muted); word-break: break-all; }
@media (max-width: 480px) {
    .nav-grid { grid-template-columns: 1fr; }
}

/* ============ 后台设置分组 ============ */
.settings-group {
    margin: 20px 0 10px; padding-bottom: 6px;
    border-bottom: 1px dashed var(--border);
    font-size: 14px; color: var(--text); font-weight: 600;
}
.settings-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px 20px;
}
.settings-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.settings-wide { grid-column: 1 / -1; }
@media (max-width: 480px) { .settings-grid { grid-template-columns: 1fr; } }

/* ============ 通用动效（扁平化：仅颜色过渡，无位移/悬浮阴影） ============ */
.btn { transition: background .15s ease, border-color .15s ease, color .15s ease; }
.nav-links a, .user-name, .footer a { transition: color .15s ease, opacity .15s ease; }
.modal-backdrop { animation: laFadeIn .2s ease; }
@keyframes laFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ============ 移动端 UI 优化（呼吸感 + 触控友好） ============ */
@media (max-width: 768px) {
    .nav-inner { gap: 12px; padding: 8px 14px; }
    .nav-links { gap: 2px; }
    .nav-links a { padding: 6px 11px; font-size: 13.5px; }
    .brand { font-size: 17px; }
    .container { padding: 0 16px; }
    .page-head { margin-bottom: 16px; }
}
@media (max-width: 480px) {
    .container { padding: 0 14px; margin-top: 16px; }
    .nav-inner { gap: 8px; padding: 7px 10px; }
    /* 导航链接一行横向滑动，不再换行堆叠（解决多入口拥挤） */
    .nav-links { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
    .nav-links::-webkit-scrollbar { display: none; }
    .nav-links a { padding: 7px 11px; font-size: 13px; white-space: nowrap; }
    .user-chip-wrap { gap: 6px; }
    .avatar { width: 24px; height: 24px; font-size: 12px; }
    .mt { margin-top: 14px; }
    .page-head { margin-bottom: 14px; }
    .card h3 { margin-bottom: 10px; }
    /* 触控目标最小高度，减少误触 */
    .btn { min-height: 40px; }
    .btn-sm { min-height: 32px; }
    .table-wrap { -webkit-overflow-scrolling: touch; }
    /* 聊天页：消息与输入区留白 */
    .chat-box { padding: 12px; }
    .chat-msg { padding: 10px 12px; margin-bottom: 10px; }
    .chat-input-wrap { gap: 8px; }
    /* 正文/笔记行高与段距，提升可读性 */
    .note-body { line-height: 1.7; }
    .blog-body { line-height: 1.75; }
    .footer { padding: 22px 0 30px; }
    .comment-item { padding: 10px 0; }
}

/* ============ 移动端滚动/拖动修复 ============ */
/* 防止页面被横向溢出元素撑开导致整体左右晃动 */
html, body { overflow-x: hidden; }
/* 横向可滚动容器：明确声明水平手势用于滚动（解决"有时无法拖动"） */
.nav-links {
    touch-action: pan-x; overscroll-behavior-x: contain;
    user-select: none; -webkit-user-select: none; /* 防横滑时长按选中文本干扰拖动 */
}
.table-wrap {
    touch-action: pan-x pan-y; -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}
/* 纵向滚动容器手势优化（弹窗/聊天/文件树/图片选择/分享列表/后台侧栏） */
.modal .form-stack, .chat-box, .admin-files-tree, .img-picker-grid,
.share-link-list, .admin-nav {
    touch-action: pan-x pan-y; -webkit-overflow-scrolling: touch;
}

/* ============================================================
   博客化改版：侧边栏 + 三栏首页 + 阅读器 + 留言板（简洁风）
   ============================================================ */

/* ---- 整体骨架：侧栏 + 内容 ---- */
.shell { display: flex; gap: 24px; max-width: 1240px; margin: 0 auto; padding: 22px 20px 0; align-items: flex-start; flex: 1 0 auto; width: 100%; }
.shell .container { flex: 1; min-width: 0; max-width: none; margin: 0; padding: 0; }

/* ---- 侧边栏 ---- */
.sidebar { flex: 0 0 164px; position: sticky; top: 78px; }
.side-group { margin-bottom: 22px; }
.side-label { font-size: 12px; color: var(--muted); padding: 0 10px 6px; letter-spacing: .6px; }
.sidebar a, .sidebar .side-group button {
    display: block; width: 100%; text-align: left;
    padding: 8px 10px; border-radius: var(--radius); font-size: 14px;
    color: var(--text); text-decoration: none;
    background: none; border: none; cursor: pointer; font-family: inherit;
    transition: background .15s ease, color .15s ease;
}
.sidebar a:hover, .sidebar .side-group button:hover { background: var(--grad-soft); color: var(--primary-ink); }
.sidebar a.active { background: var(--grad-soft); color: var(--primary-ink); font-weight: 600; }
.side-mask { display: none; }
.nav-burger {
    display: none; background: none; border: 1px solid var(--border);
    border-radius: 6px; font-size: 13px; line-height: 1.2; padding: 6px 10px;
    cursor: pointer; color: var(--text); font-family: inherit; letter-spacing: 1px;
}

/* ---- 首页三栏（博客正中 + 通知右侧） ---- */
.home-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 24px; align-items: start; }
.home-main { min-width: 0; }
.home-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.home-side { position: sticky; top: 78px; }
.side-box { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; background: var(--card); }
.side-box-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 6px; }
.side-box-head h3 { margin: 0; }
.notice-list { list-style: none; padding: 0; margin: 4px 0 0; }
.notice-list li { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.notice-list li:last-child { border-bottom: none; }
.notice-list a { color: var(--text); }
.notice-list a:hover { color: var(--primary-ink); }

/* ---- 博客 ---- */
.post-card { padding: 20px 0; border-bottom: 1px solid var(--border); }
.post-card:last-of-type { border-bottom: none; }
.post-card h2 { font-size: 19px; margin: 0 0 6px; letter-spacing: 0; }
.post-card h2 a { color: var(--text); }
.post-card h2 a:hover { color: var(--primary-ink); }
.post-meta { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.post-excerpt { margin: 0; color: #4b5563; line-height: 1.8; }
.post-full { max-width: 760px; }
.post-full h1 { font-size: 27px; margin-bottom: 8px; }
.post-body { margin-top: 20px; font-size: 16px; line-height: 1.95; color: #1f2937; }
.post-ops { display: flex; gap: 8px; margin-top: 10px; }
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 20px 0; }

/* ---- 阅读器 ---- */
.book-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 14px; }
.book-card {
    display: block; padding: 16px; border: 1px solid var(--border);
    border-radius: var(--radius); background: var(--card); color: var(--text);
    transition: border-color .15s ease;
}
.book-card:hover { border-color: var(--primary); }
.book-title { font-weight: 600; margin-bottom: 6px; }
.book-meta { font-size: 12px; color: var(--muted); }
.book-intro { font-size: 13px; color: var(--muted); margin-top: 6px; }
.reader-wrap { max-width: 820px; margin: 0 auto; }
.reader-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.reader-head h1 { font-size: 24px; }
.reader-tools { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.reader-toc {
    display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0;
    padding: 12px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card);
}
.reader-toc a { padding: 5px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; color: var(--text); }
.reader-toc a.active { background: var(--grad-soft); color: var(--primary-ink); font-weight: 600; }
.reader-body { margin-top: 16px; }
.reader-body .chapter-title { font-size: 20px; margin-bottom: 14px; }
.chapter-text { white-space: pre-wrap; line-height: 2; color: #1f2937; }
.reader-nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 22px 0 6px; }

/* ---- 留言板 ---- */
.board-item { padding: 16px 0; border-bottom: 1px solid var(--border); }
.board-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.board-body { line-height: 1.8; }
.board-reply { margin-top: 8px; padding: 9px 12px; background: var(--grad-soft); border-radius: var(--radius); font-size: 14px; }

/* ---- 夜间主题适配（新组件） ---- */
body.dark .side-box, body.dark .book-card, body.dark .reader-toc,
body.dark .sidebar, body.dark .reader-body { background: #161616; border-color: #2a2a2a; }
body.dark .post-excerpt, body.dark .post-body, body.dark .chapter-text { color: var(--text); }
body.dark .sidebar a, body.dark .sidebar .side-group button { color: var(--text); }

/* ---- 移动端：侧栏抽屉 + 单栏 + 不拥挤 ---- */
@media (max-width: 920px) {
    .shell { padding: 16px 16px 0; gap: 0; }
    .home-grid { grid-template-columns: 1fr; gap: 18px; }
    .home-side { position: static; }
    .sidebar {
        position: fixed; left: 0; top: 0; bottom: 0; width: 224px; z-index: 120;
        background: var(--card); padding: 18px 12px; overflow-y: auto;
        transform: translateX(-102%); transition: transform .22s ease;
        box-shadow: 2px 0 16px rgba(0, 0, 0, .18);
    }
    .sidebar.open { transform: none; }
    .side-mask { display: block; position: fixed; inset: 0; background: rgba(0, 0, 0, .38); z-index: 110; }
    .side-mask[hidden] { display: none; }
    .nav-burger { display: inline-flex; align-items: center; }
    .nav-inner { gap: 10px; }
    .nav-links { flex: 1; overflow-x: auto; flex-wrap: nowrap; scrollbar-width: none; }
    .nav-links::-webkit-scrollbar { display: none; }
    .nav-links a { white-space: nowrap; }
    .post-full h1 { font-size: 22px; }
    .reader-head h1 { font-size: 20px; }
    .book-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
    .chapter-text { line-height: 1.95; }
}
@media (max-width: 480px) {
    .shell { padding: 12px 12px 0; }
    .post-card { padding: 16px 0; }
    .post-card h2 { font-size: 17px; }
    .home-head h1 { font-size: 20px; }
    .reader-tools .btn { min-height: 32px; }
    .sidebar { width: 78%; max-width: 260px; }
}