/* =========================================================
   云盘 · 后台 UI（对齐古诗词后台 · Arco 规范）
   ========================================================= */
:root {
    --color-primary: #165DFF;
    --color-primary-hover: #4080FF;
    --color-primary-active: #0E42D2;
    --color-primary-light: #E8F3FF;
    --color-bg-1: #F5F6F8;
    --color-bg-2: #F7F8FA;
    --color-text-1: #1D2129;
    --color-text-2: #4E5969;
    --color-text-3: #86909C;
    --color-text-4: #C9CDD4;
    --color-border: #E5E6EB;
    --color-success: #00B42A;
    --color-warning: #FF7D00;
    --color-danger: #F53F3F;
    --sidebar-width: 224px;
    --sidebar-collapsed: 64px;
    --header-height: 56px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --shadow-card: 0 1px 3px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .05);
    --shadow-hover: 0 4px 12px rgba(15, 23, 42, .08), 0 12px 32px rgba(15, 23, 42, .08);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
    font-family: var(--font);
    background: var(--color-bg-1);
    color: var(--color-text-1);
    font-size: 14px;
    line-height: 1.5715;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; transition: all .2s; }
a:hover { color: var(--color-primary-hover); }

::selection { background: rgba(22, 93, 255, .18); }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #C9CDD4; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #A9AEB8; }
::-webkit-scrollbar-track { background: transparent; }

/* =========================================================
   侧边栏（白色 · 可折叠 · 分组导航）
   ========================================================= */
.sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: #FFFFFF;
    z-index: 1001;
    display: flex; flex-direction: column;
    transition: width .2s;
    border-right: 1px solid var(--color-border);
}
.sidebar.collapsed { width: var(--sidebar-collapsed); }

.sidebar-logo {
    height: var(--header-height);
    display: flex; align-items: center;
    padding: 0 20px; flex-shrink: 0;
    background: #FFFFFF; border-bottom: 1px solid var(--color-border);
}
.sidebar-logo::before {
    content: ''; width: 8px; height: 8px;
    background: var(--color-primary); margin-right: 9px; flex-shrink: 0;
}
.sidebar-logo .logo-text { font-size: 16px; font-weight: 700; color: var(--color-text-1); white-space: nowrap; overflow: hidden; transition: opacity .15s; }
.sidebar.collapsed .logo-text { opacity: 0; width: 0; }
.sidebar.collapsed .sidebar-logo { padding: 0; justify-content: center; }
.sidebar.collapsed .sidebar-logo::before { margin-right: 0; }

.sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 0; }
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--color-border); }

/* 分组 */
.nav-group { margin: 0; }
.nav-group-title {
    display: flex; align-items: center;
    height: 44px; padding: 0 20px;
    font-size: 14px; font-weight: 600; color: var(--color-text-1);
    cursor: pointer; user-select: none; transition: all .15s; position: relative;
}
.nav-group-title:hover { color: var(--color-primary); background: var(--color-bg-2); }
.nav-group.open .nav-group-title { color: var(--color-primary); background: var(--color-bg-2); }
.nav-group.open .nav-group-title::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--color-primary);
}
.nav-group-title .arrow { margin-left: auto; font-size: 10px; color: var(--color-text-4); transition: transform .2s; }
.nav-group.open .nav-group-title .arrow { transform: rotate(90deg); color: var(--color-primary); }

.nav-group-items { overflow: hidden; max-height: 0; transition: max-height .25s; }
.nav-group.open .nav-group-items { max-height: 600px; }

/* 子菜单 / 单项 */
.nav-item {
    display: flex; align-items: center;
    height: 40px; padding: 0 20px 0 36px;
    font-size: 13px; color: var(--color-text-2);
    position: relative; text-decoration: none; cursor: pointer;
    transition: all .12s;
}
.nav-item:hover { color: var(--color-primary); background: var(--color-bg-2); }
.nav-item.active { color: #FFFFFF; background: var(--color-primary); font-weight: 600; }
.nav-item.active::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--color-primary-active);
}
.nav-item .nav-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-item .count { margin-left: auto; font-size: 11px; opacity: .75; }

/* 折叠态 */
.sidebar.collapsed .nav-group-title { height: 0; padding: 0; opacity: 0; overflow: hidden; margin: 0; border: none; }
.sidebar.collapsed .nav-group-items { max-height: none !important; }
.sidebar.collapsed .nav-item { padding: 0; justify-content: center; }
.sidebar.collapsed .nav-item .nav-label { display: none; }
.sidebar.collapsed .nav-item .count { display: none; }
.sidebar.collapsed .nav-item::before {
    content: ''; position: absolute; left: 50%; top: 50%;
    width: 4px; height: 4px; margin-left: -2px; margin-top: -2px; background: var(--color-text-4);
}
.sidebar.collapsed .nav-item:hover::before { background: var(--color-primary); }
.sidebar.collapsed .nav-item.active { background: var(--color-primary); }
.sidebar.collapsed .nav-item.active::before { width: 6px; height: 6px; margin-left: -3px; margin-top: -3px; background: #FFFFFF; }

/* 底部折叠按钮 */
.sidebar-footer { padding: 0; border-top: 1px solid var(--color-border); flex-shrink: 0; }
.collapse-btn {
    display: flex; align-items: center; height: 44px; padding: 0 20px;
    color: var(--color-text-3); cursor: pointer; font-size: 13px; transition: all .15s;
}
.collapse-btn:hover { color: var(--color-primary); background: var(--color-bg-2); }
.collapse-btn .col-icon { margin-right: 8px; font-size: 15px; }
.sidebar.collapsed .collapse-btn { justify-content: center; padding: 0; }
.sidebar.collapsed .collapse-btn .col-icon { margin-right: 0; }
.sidebar.collapsed .collapse-btn span:last-child { display: none; }

/* =========================================================
   主区
   ========================================================= */
.main-wrap { display: flex; flex-direction: column; min-height: 100vh; min-width: 0; margin-left: var(--sidebar-width); transition: margin-left .2s; }
.main-wrap.expanded { margin-left: var(--sidebar-collapsed); }

.topbar {
    height: var(--header-height); background: #fff; border-bottom: 1px solid var(--color-border);
    display: flex; align-items: center; gap: 12px; padding: 0 24px; flex-shrink: 0;
    position: sticky; top: 0; z-index: 100;
}
.topbar .left { font-size: 15px; font-weight: 600; color: var(--color-text-1); white-space: nowrap; }
.topbar .spacer { flex: 1; }

.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; margin-left: auto; }
.header-btn {
    display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 14px;
    font-size: 13px; color: var(--color-text-2); cursor: pointer; border-radius: 6px; line-height: 1;
    transition: all .2s; white-space: nowrap; background: transparent; border: none; font-weight: 500; font-family: inherit;
}
.header-btn:hover { color: var(--color-primary); background: var(--color-bg-2); }
.header-user {
    display: flex; align-items: center; gap: 6px; padding: 0 14px; cursor: pointer;
    border-radius: 6px; transition: all .2s; position: relative; height: 32px; line-height: 1;
    background: transparent; border: none; font-weight: 500; font-family: inherit;
}
.header-user:hover { background: var(--color-bg-2); color: var(--color-primary); }
.user-avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--color-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 600; flex-shrink: 0; line-height: 1;
}
.header-user .user-name { font-size: 13px; color: var(--color-text-2); }
.header-user:hover .user-name { color: var(--color-primary); }
.user-arrow { font-size: 12px; color: var(--color-text-3); margin-left: 2px; transition: transform .2s; }
.header-user:hover .user-arrow { transform: rotate(180deg); color: var(--color-primary); }
.user-dropdown {
    display: none; position: absolute; top: calc(100% + 6px); right: 0;
    background: #fff; border: 1px solid var(--color-border); border-radius: 4px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, .08); min-width: 140px; z-index: 1002; padding: 6px 0;
}
.user-dropdown.show { display: block; }
.user-dropdown a {
    display: block; padding: 8px 16px; font-size: 13px; color: var(--color-text-2);
    text-decoration: none; transition: all .1s; border-radius: 4px; margin: 0 6px;
}
.user-dropdown a:hover { color: var(--color-primary); background: var(--color-primary-light); }

.main { flex: 1; padding: 20px 24px; min-width: 0; overflow: auto; }

/* 搜索框 */
.search-box { position: relative; }
.search-box input {
    width: 260px; height: 32px; padding: 0 12px 0 34px; border: 1px solid var(--color-border);
    border-radius: 6px; font-size: 13px; outline: none; background: var(--color-bg-2); color: var(--color-text-1);
    transition: border .2s, background .2s;
}
.search-box input:focus { border-color: var(--color-primary); background: #fff; box-shadow: 0 0 0 2px rgba(22, 93, 255, .1); }
.search-box .icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--color-text-3); }

/* =========================================================
   卡片
   ========================================================= */
.card {
    background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md);
    box-shadow: var(--shadow-card); padding: 24px 28px; margin-bottom: 16px;
}
.card-head {
    display: flex; align-items: center; gap: 8px;
    padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid var(--color-border);
    font-size: 16px; font-weight: 600; color: var(--color-text-1);
}
.card-head::before { content: ''; width: 4px; height: 16px; background: var(--color-primary); border-radius: 2px; flex-shrink: 0; }
.card-head > :last-child:not(:first-child) { margin-left: auto; }
.card-head a { font-size: 13px; font-weight: 400; }
.card-body { padding: 0; }
.card-body.no-pad { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.card-sub { font-size: 13px; color: var(--color-text-3); margin-bottom: 16px; }

/* =========================================================
   表格
   ========================================================= */
table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
table th, table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
table th { background: var(--color-bg-2); color: var(--color-text-2); font-weight: 600; font-size: 13px; white-space: nowrap; }
table tr:last-child td { border-bottom: none; }
table tr:hover td { background: var(--color-bg-2); }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.actions { display: flex; gap: 8px; align-items: center; white-space: nowrap; }

/* =========================================================
   按钮 / 表单
   ========================================================= */
.btn, .btn-primary, .btn-danger, .btn-ghost {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    height: 34px; padding: 0 16px; border-radius: var(--radius-sm); font-size: 14px;
    text-decoration: none; cursor: pointer; border: 1px solid var(--color-border);
    background: #fff; color: var(--color-text-2); transition: all .2s; font-weight: 500; font-family: inherit;
}
.btn:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:disabled:hover { border-color: var(--color-border); color: var(--color-text-2); background: #fff; }
.btn-primary { background: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: 0 2px 8px rgba(22, 93, 255, .22); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: #fff; box-shadow: 0 4px 14px rgba(22, 93, 255, .3); }
.btn-danger { color: var(--color-danger); border-color: var(--color-border); background: #fff; }
.btn-danger:hover { background: #FFF0F0; border-color: var(--color-danger); color: var(--color-danger); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--color-primary-light); border-color: transparent; }
.btn-sm { height: 28px; padding: 0 12px; font-size: 13px; border-radius: 6px; }
.btn-icon { padding: 0 9px; }

.input, select.input, textarea.input {
    width: 100%; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    font-size: 14px; outline: none; background: #fff; transition: border .2s, box-shadow .2s;
    font-family: inherit; color: var(--color-text-1);
}
.input, select.input { height: 38px; line-height: 38px; padding: 0 14px; }
textarea.input { padding: 10px 14px; min-height: 90px; resize: vertical; line-height: 1.7; }
.input::placeholder, textarea.input::placeholder { color: var(--color-text-4); }
.input:focus, select.input:focus, textarea.input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(22, 93, 255, .12); }

.form-row { margin-bottom: 18px; }
.form-row:last-child { margin-bottom: 0; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--color-text-1); }
.form-row .hint, .form-help { font-size: 12px; color: var(--color-text-3); margin-top: 6px; }

.badge { display: inline-block; padding: 2px 10px; font-size: 12px; line-height: 20px; border-radius: 4px; background: #E8FFEA; color: var(--color-success); }
.badge.cinnabar { background: var(--color-primary-light); color: var(--color-primary); }
.badge.gold { background: #F2F6FF; color: #4B7BFF; }
.badge.gray { background: var(--color-bg-2); color: var(--color-text-3); }

/* =========================================================
   统计卡
   ========================================================= */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 16px; }
.stat-card { background: #fff; border: 1px solid var(--color-border); border-radius: 4px; padding: 20px; }
.stat-label, .s-label { font-size: 13px; color: var(--color-text-3); margin-bottom: 8px; }
.stat-value, .s-value { font-size: 28px; font-weight: 600; color: var(--color-text-1); }
.s-value small { font-size: 14px; color: var(--color-text-3); font-weight: 400; }

/* =========================================================
   面包屑 / 工具栏
   ========================================================= */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 14px; margin-bottom: 16px; }
.breadcrumb a { color: var(--color-text-2); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-text-4); }
.breadcrumb .current { color: var(--color-text-1); font-weight: 600; }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.toolbar .view-toggle { display: flex; border: 1px solid var(--color-border); border-radius: 6px; overflow: hidden; }
.toolbar .view-toggle button { padding: 6px 12px; background: #fff; border: none; cursor: pointer; font-size: 14px; color: var(--color-text-2); }
.toolbar .view-toggle button.active { background: var(--color-primary); color: #fff; }

/* =========================================================
   文件网格 / 列表
   ========================================================= */
.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.file-card {
    position: relative; background: #fff; border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 14px 12px; cursor: pointer;
    transition: all .15s ease; text-align: center; overflow: hidden;
}
.file-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-hover); }
.file-card.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.file-card .thumb { height: 72px; display: flex; align-items: center; justify-content: center; margin-bottom: 8px; color: var(--color-text-2); font-size: 38px; }
.file-card .thumb img { max-width: 100%; max-height: 72px; border-radius: 4px; }
.file-card .fname { font-size: 13px; color: var(--color-text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-card .fmeta { font-size: 12px; color: var(--color-text-3); margin-top: 3px; }
.file-card .check {
    position: absolute; top: 8px; left: 8px; width: 20px; height: 20px;
    border: 1px solid var(--color-border); border-radius: 4px; background: #fff;
    display: none; align-items: center; justify-content: center; color: #fff; font-size: 13px;
}
.file-card .check::after { content: '✓'; }
.file-card.selected .check { display: flex; background: var(--color-primary); border-color: var(--color-primary); }
.file-card .more {
    position: absolute; top: 6px; right: 6px; width: 26px; height: 26px;
    border-radius: 6px; background: #fff; color: var(--color-text-2);
    display: none; align-items: center; justify-content: center; cursor: pointer;
    font-size: 16px; line-height: 1; z-index: 2; border: 1px solid var(--color-border);
}
.file-card:hover .more { display: flex; }
.file-card .more:hover { color: var(--color-primary); border-color: var(--color-primary); }
.file-card:hover .check { display: flex; }
body.selecting .file-card .check { display: flex; }

.file-list { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow-x: auto; -webkit-overflow-scrolling: touch; }
.file-list .fl-head, .file-list .fl-row {
    display: grid; grid-template-columns: 44px 1fr 90px 130px 120px 110px; gap: 10px;
    align-items: center; padding: 10px 16px; min-width: 680px;
}
.file-list .fl-head { background: var(--color-bg-2); font-size: 12px; color: var(--color-text-2); border-bottom: 1px solid var(--color-border); }
.file-list .fl-row { border-bottom: 1px solid var(--color-border); cursor: pointer; transition: background .12s; }
.file-list .fl-row:hover { background: var(--color-bg-2); }
.file-list .fl-row:last-child { border-bottom: none; }
.file-list .fl-row.selected { background: var(--color-primary-light); }
.file-list .fl-name { display: flex; align-items: center; gap: 10px; min-width: 0; }
.file-list .fl-name .icon { font-size: 20px; color: var(--color-text-2); flex: none; }
.file-list .fl-name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-list .fl-name img { width: 28px; height: 28px; border-radius: 4px; object-fit: cover; flex: none; }
.fi-archive { color: #FF7D00; }
.fi-folder { color: #F7BA1E; }
.file-list .cell { font-size: 13px; color: var(--color-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.check-cell { cursor: pointer; }

.empty { text-align: center; padding: 80px 20px; color: var(--color-text-3); }
.empty .glyph { font-size: 52px; margin-bottom: 12px; opacity: .6; }
.empty p { font-size: 14px; }

/* =========================================================
   模态框
   ========================================================= */
.modal-mask { position: fixed; inset: 0; z-index: 1200; background: rgba(0, 0, 0, .45); display: none; align-items: center; justify-content: center; padding: 24px; }
.modal-mask.open { display: flex; }
.modal { background: #fff; border-radius: var(--radius-md); box-shadow: var(--shadow-hover); width: 100%; max-width: 520px; max-height: 90vh; overflow: auto; animation: pop .16s ease; }
.modal.lg { max-width: 860px; }
.modal.xl { max-width: 1080px; }
@keyframes pop { from { opacity: 0; transform: scale(.97) translateY(6px); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--color-border); font-size: 16px; font-weight: 600; }
.modal-head .close { cursor: pointer; font-size: 20px; color: var(--color-text-3); line-height: 1; }
.modal-head .close:hover { color: var(--color-text-1); }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 10px; }

/* =========================================================
   Toast / 上传面板 / 拖拽 / 预览 / 右键菜单 / 权限
   ========================================================= */
.toast-wrap { position: fixed; top: 68px; right: 24px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast { min-width: 240px; max-width: 360px; padding: 12px 16px; border-radius: 8px; background: #fff; box-shadow: var(--shadow-hover); border: 1px solid var(--color-border); font-size: 14px; animation: slidein .2s ease; display: flex; gap: 10px; align-items: flex-start; }
@keyframes slidein { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
.toast.success { border-left: 3px solid var(--color-success); }
.toast.error { border-left: 3px solid var(--color-danger); }
.toast.info { border-left: 3px solid var(--color-primary); }

/* 传输状态：右下角悬浮面板 */
.transfer-float { position: fixed; right: 20px; bottom: 20px; z-index: 1000; display: flex; flex-direction: column; align-items: flex-end; }
.transfer-fab { width: 56px; height: 56px; border-radius: 50%; border: none; background: var(--color-primary); color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 16px rgba(22, 93, 255, .32); transition: background .15s, transform .15s ease, box-shadow .15s ease; }
.transfer-fab:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(22, 93, 255, .38); }
.transfer-fab:active { transform: translateY(0); box-shadow: 0 4px 10px rgba(22, 93, 255, .3); }
.transfer-fab .fab-badge { position: absolute; top: -6px; right: -6px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--color-danger); color: #fff; font-size: 12px; font-weight: 600; display: flex; align-items: center; justify-content: center; box-sizing: border-box; border: 2px solid #fff; }
.transfer-panel { display: none; width: 420px; max-width: calc(100vw - 24px); margin-bottom: 12px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-hover); overflow: hidden; }
.transfer-float.open .transfer-panel { display: block; animation: pop .18s ease; }
.transfer-float.open .transfer-fab { display: none; }
.transfer-panel .transfer-head { display: flex; align-items: center; gap: 8px; padding: 14px 16px 10px; }
.transfer-panel .transfer-head .title { font-size: 15px; font-weight: 600; color: var(--color-text-1); }
.transfer-panel .transfer-head .summary { font-size: 12px; color: var(--color-primary); }
.transfer-panel .transfer-head .spacer { flex: 1; }
.transfer-panel .link-btn { border: none; background: none; font-size: 12px; color: var(--color-text-3); cursor: pointer; padding: 4px 6px; border-radius: 4px; transition: color .15s, background .15s; }
.transfer-panel .link-btn:hover { color: var(--color-primary); background: var(--color-primary-light); }
.transfer-panel .transfer-close { border: none; background: none; color: var(--color-text-3); cursor: pointer; display: flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 6px; transition: color .15s, background .15s; }
.transfer-panel .transfer-close:hover { background: var(--color-bg-2); color: var(--color-text-1); }
.transfer-panel .transfer-empty { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 40px 20px; color: var(--color-text-4); font-size: 13px; }
.transfer-panel .transfer-list { max-height: 60vh; overflow-y: auto; padding: 4px 8px 10px; }
.transfer-panel .up-item { padding: 10px 8px; border-radius: 8px; transition: background .15s; }
.transfer-panel .up-item:hover { background: var(--color-bg-2); }
.transfer-panel .up-row { display: flex; align-items: center; gap: 10px; }
.transfer-panel .up-icon { width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--color-primary-light); color: var(--color-primary); transition: background .15s, color .15s; }
.transfer-panel .up-item[data-state="wait"] .up-icon,
.transfer-panel .up-item[data-state="canceled"] .up-icon { background: #F2F3F5; color: var(--color-text-3); }
.transfer-panel .up-item[data-state="done"] .up-icon { background: #E8FFEA; color: var(--color-success); }
.transfer-panel .up-item[data-state="error"] .up-icon { background: #FFECE8; color: var(--color-danger); }
.transfer-panel .up-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.transfer-panel .up-name { font-size: 13px; font-weight: 500; color: var(--color-text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.transfer-panel .up-status { font-size: 12px; color: var(--color-text-3); }
.transfer-panel .up-item[data-state="active"] .up-status { color: var(--color-primary); }
.transfer-panel .up-item[data-state="done"] .up-status { color: var(--color-success); }
.transfer-panel .up-item[data-state="error"] .up-status { color: var(--color-danger); }
.transfer-panel .up-clear { width: 24px; height: 24px; border: none; background: none; color: var(--color-text-4); cursor: pointer; border-radius: 6px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; opacity: 0; transition: opacity .15s, background .15s, color .15s; }
.transfer-panel .up-item:hover .up-clear { opacity: 1; }
.transfer-panel .up-clear:hover { background: #F2F3F5; color: var(--color-danger); }
.transfer-panel .up-cancel { width: 24px; height: 24px; border: none; background: none; color: var(--color-text-4); cursor: pointer; border-radius: 6px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background .15s, color .15s; }
.transfer-panel .up-item:hover .up-cancel { color: var(--color-text-2); }
.transfer-panel .up-cancel:hover { background: #F2F3F5; color: var(--color-danger); }
.transfer-panel .up-item[data-state="done"] .up-cancel,
.transfer-panel .up-item[data-state="error"] .up-cancel,
.transfer-panel .up-item[data-state="canceled"] .up-cancel { display: none; }
.transfer-panel .up-bar { height: 4px; margin-top: 9px; background: #F2F3F5; border-radius: 2px; overflow: hidden; }
.transfer-panel .up-bar i { display: block; height: 100%; background: var(--color-primary); border-radius: 2px; transition: width .25s ease; }
.transfer-panel .up-item[data-state="done"] .up-bar i { background: var(--color-success); }
.transfer-panel .up-item[data-state="error"] .up-bar i { background: var(--color-danger); }
.transfer-panel .up-item[data-state="canceled"] .up-bar i { background: var(--color-text-4); }

/* 移动弹窗目录列表 */
.move-list { border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; }
.move-row { display: flex; align-items: center; gap: 10px; padding: 11px 14px; cursor: pointer; border-bottom: 1px solid var(--color-border); font-size: 13px; color: var(--color-text-1); transition: background .12s; }
.move-row:last-child { border-bottom: none; }
.move-row:hover { background: var(--color-primary-light); }
.move-row svg { color: var(--color-text-2); flex-shrink: 0; }
.move-row .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 个人设置弹窗 */
.settings-section { padding-bottom: 18px; margin-bottom: 18px; border-bottom: 1px solid var(--color-border); }
.settings-section:last-child { padding-bottom: 0; margin-bottom: 0; border-bottom: none; }
.section-title { font-size: 14px; font-weight: 600; color: var(--color-text-1); margin-bottom: 14px; }
.section-actions { margin-top: 4px; display: flex; gap: 8px; }
.section-hint { margin-top: 8px; font-size: 12px; color: var(--color-text-3); }

/* 下载设置视图 */
.settings-view { max-width: 640px; }
.settings-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-card); padding: 24px; }
.settings-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.settings-card-head > span:first-child { font-size: 16px; font-weight: 600; color: var(--color-text-1); }
.settings-tag { font-size: 12px; color: var(--color-text-3); background: var(--color-bg-2); border-radius: 4px; padding: 2px 8px; }
.settings-tag.set { color: var(--color-success); background: #E8FFEA; }
.settings-card .dl-path { font-size: 13px; color: var(--color-text-2); background: var(--color-bg-2); border: 1px dashed var(--color-border); border-radius: 6px; padding: 12px 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.settings-card .dl-actions { display: flex; gap: 10px; margin-top: 16px; }
.settings-card .dl-hint { margin-top: 12px; font-size: 12px; color: var(--color-warning); }
.settings-card .dl-desc { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--color-border); }
.settings-card .desc-item { font-size: 12px; color: var(--color-text-3); line-height: 1.9; }
.settings-card .desc-item.warn { color: var(--color-warning); }

.drop-mask { position: fixed; inset: 0; z-index: 300; background: rgba(22, 93, 255, .06); border: 3px dashed var(--color-primary); display: none; align-items: center; justify-content: center; font-size: 24px; font-weight: 600; color: var(--color-primary); backdrop-filter: blur(2px); }
.drop-mask.show { display: flex; }

.preview-body { height: 70vh; display: flex; align-items: center; justify-content: center; background: #14181F; border-radius: 8px; overflow: hidden; }
.preview-body img { max-width: 100%; max-height: 70vh; object-fit: contain; }
.preview-body iframe { width: 100%; height: 70vh; border: none; background: #fff; }
.preview-body video { max-width: 100%; max-height: 70vh; }
.preview-body audio { width: 80%; }
.preview-body pre { width: 100%; height: 70vh; overflow: auto; padding: 20px; color: #E8E8E8; font-size: 13px; white-space: pre-wrap; word-break: break-all; }
.preview-loading { color: #C9CDD4; font-size: 14px; }
.preview-loading::before { content: '⏳ '; }
.preview-error { color: #F53F3F; font-size: 14px; }
.preview-error::before { content: '⚠ '; }

.ctx-menu { position: fixed; z-index: 500; min-width: 160px; padding: 6px; background: #fff; border: 1px solid var(--color-border); border-radius: 8px; box-shadow: var(--shadow-hover); animation: pop .14s ease; }
.ctx-item { padding: 9px 14px; border-radius: 6px; font-size: 14px; cursor: pointer; color: var(--color-text-1); transition: background .12s; }
.ctx-item:hover { background: var(--color-primary-light); color: var(--color-primary); }

.perm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px 14px; }
.perm-item { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--color-text-2); cursor: pointer; }
.perm-item input { accent-color: var(--color-primary); width: 15px; height: 15px; }

/* =========================================================
   登录页
   ========================================================= */
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 30px; background: var(--color-bg-1); }
.login-card { width: 100%; max-width: 360px; background: #fff; border-radius: 8px; box-shadow: 0 2px 16px rgba(0, 0, 0, .1); padding: 40px; }
.login-card .logo-mark { width: 40px; height: 40px; margin: 0 auto 12px; border-radius: 10px; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; }
.login-card .logo-mark svg { width: 24px; height: 24px; }
.login-title { text-align: center; font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.login-sub { text-align: center; color: var(--color-text-3); font-size: 13px; margin-bottom: 28px; }
.login-card .form-row { margin-bottom: 18px; }
.login-card .submit { width: 100%; height: 40px; font-size: 15px; }
.login-foot { text-align: center; color: var(--color-text-3); font-size: 12px; margin-top: 20px; }

/* =========================================================
   移动端
   ========================================================= */
.menu-toggle { display: none; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--color-text-1); padding: 4px 8px; line-height: 1; }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, .45); z-index: 1000; }
.sidebar-overlay.show { display: block; }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform .2s; }
    .sidebar.mobile-show { transform: translateX(0); }
    .main-wrap { margin-left: 0 !important; }
    .menu-toggle { display: inline-flex; }
    .topbar { padding: 0 12px; }
    .topbar .left { font-size: 14px; }
    .main { padding: 14px 12px; }
    .card { padding: 16px; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .search-box input { width: 120px; }
    .header-user .user-name { display: none; }
    .transfer-panel .transfer-list { max-height: 52vh; }
    .transfer-panel { width: calc(100vw - 24px); }
    .transfer-float { right: 12px; bottom: 12px; }
    .modal-mask { padding: 12px; }
    .file-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
}