/* ==========================================================================
   校园代跑腿系统 - 简洁白底样式（PC / 平板 / 移动端自适应）
   ========================================================================== */

:root {
    --bg:            #ffffff;
    --bg-soft:       #f7f8fa;
    --bg-hover:      #f2f4f7;
    --line:          #e9eaee;
    --line-strong:   #dcdee4;
    --text:          #1f2329;
    --text-sub:      #5b6270;
    --text-dim:      #8a90a0;
    --primary:       #2b6cf6;
    --primary-hover: #1f5ae0;
    --primary-soft:  #eef3ff;
    --success:       #12a150;
    --success-soft:  #e9f8ef;
    --success-text:  #0f7a3d;
    --warning:       #c47f00;
    --warning-soft:  #fff6e5;
    --warning-text:  #9a6400;
    --danger:        #e03e3e;
    --danger-soft:   #fdeeee;
    --danger-text:   #b62d2d;
    --price:         #d9480f;
    --radius:        12px;
    --radius-sm:     8px;
    --shadow:        0 1px 2px rgba(16, 24, 40, .04), 0 4px 14px rgba(16, 24, 40, .05);
    --shadow-sm:     0 1px 2px rgba(16, 24, 40, .05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { min-height: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

/* 旧版动态背景层：白底模式下隐藏 */
.bg-layer { display: none !important; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ---------- 卡片 ---------- */
.glass {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.glass-soft {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

/* ---------- 顶部导航 ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px 20px;
    /* 覆盖 .glass 的浮动卡片效果，改为通栏 */
    margin: 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid var(--line);
    box-shadow: none;
    background: #fff;
}
.topbar .brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}
.brand-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}
.topnav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.topnav a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-sub);
    transition: background .15s ease, color .15s ease;
}
.topnav a:hover { background: var(--bg-soft); color: var(--text); }
.topnav a.active { background: var(--primary-soft); color: var(--primary); font-weight: 500; }

/* ---------- 布局 ---------- */
.wrap { max-width: 1120px; margin: 0 auto; padding: 20px 16px 48px; }
.wrap-narrow { max-width: 420px; margin: 0 auto; padding: 40px 16px; }

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.page-title { font-size: 20px; font-weight: 600; }
.page-desc { font-size: 13px; color: var(--text-dim); margin-top: 2px; }

.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- 卡片内容 ---------- */
.card { padding: 18px; }
.card-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
}

.stat { padding: 16px 18px; }
.stat .label { font-size: 13px; color: var(--text-dim); }
.stat .value { font-size: 24px; font-weight: 600; margin-top: 4px; color: var(--text); }
.stat .sub { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* ---------- 表单 ---------- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-sub);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

input[type=text], input[type=password], input[type=number], input[type=tel],
input[type=email], input[type=file], select, textarea {
    width: 100%;
    padding: 9px 12px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
input::placeholder, textarea::placeholder { color: #a8aebb; }
input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(43, 108, 246, .12);
}
input[type=checkbox] { width: auto; }
textarea { resize: vertical; min-height: 84px; }
select { appearance: none; background-image: none; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    text-align: center;
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { background: var(--bg-hover); }
.btn:active { background: var(--bg-soft); }

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { background: #0e8a44; border-color: #0e8a44; }

.btn-danger { background: #fff; border-color: #f0c4c4; color: var(--danger); }
.btn-danger:hover { background: var(--danger-soft); }

.btn-warning { background: #fff; border-color: #f0dcb0; color: var(--warning-text); }
.btn-warning:hover { background: var(--warning-soft); }

.btn-ghost { background: transparent; border-color: transparent; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ---------- 徽章 ---------- */
.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    line-height: 1.6;
    border-radius: 4px;
    border: 1px solid transparent;
    white-space: nowrap;
    vertical-align: middle;
}
.badge-gray   { background: var(--bg-soft);     color: var(--text-sub);     border-color: var(--line); }
.badge-blue   { background: var(--primary-soft); color: #1d4ed8;            border-color: #d6e2ff; }
.badge-green  { background: var(--success-soft); color: var(--success-text); border-color: #c8ecd8; }
.badge-orange { background: var(--warning-soft); color: var(--warning-text); border-color: #f5e0b8; }
.badge-red    { background: var(--danger-soft);  color: var(--danger-text);  border-color: #f6d0d0; }
.badge-purple { background: #f4efff;             color: #6b3fd4;             border-color: #e2d7ff; }

/* ---------- 表格 ---------- */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}
table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    min-width: 720px;
}
table.data th, table.data td {
    padding: 11px 12px;
    text-align: left;
    vertical-align: middle;
    border-bottom: 1px solid var(--line);
}
table.data th {
    background: var(--bg-soft);
    color: var(--text-sub);
    font-weight: 600;
    font-size: 12.5px;
    white-space: nowrap;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover { background: #fafbfc; }
table.data td.actions { white-space: nowrap; }

/* ---------- 提示条 ---------- */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    border: 1px solid transparent;
}
.alert-success { background: var(--success-soft); color: var(--success-text); border-color: #c8ecd8; }
.alert-danger  { background: var(--danger-soft);  color: var(--danger-text);  border-color: #f6d0d0; }
.alert-warning { background: var(--warning-soft); color: var(--warning-text); border-color: #f5e0b8; }
.alert-info    { background: var(--primary-soft); color: #1d4ed8;             border-color: #d6e2ff; }

/* ---------- 登录/注册页 ---------- */
.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px 16px;
    background: #fff;
}
.auth-card { width: 100%; max-width: 400px; padding: 28px 24px; }
.auth-title { font-size: 20px; font-weight: 600; text-align: center; }
.auth-subtitle { font-size: 15px; font-weight: 600; margin: 18px 0 10px; color: var(--text-sub); }
.auth-tip { text-align: center; font-size: 13px; color: var(--text-dim); margin-top: 14px; }
.install-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13.5px;
    color: var(--text-sub);
    margin-bottom: 10px;
}
.install-list li::before { content: "· "; color: var(--success); font-weight: 700; }

/* ---------- 分段切换 ---------- */
.seg {
    display: inline-flex;
    gap: 4px;
    padding: 3px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.seg a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-sub);
    white-space: nowrap;
    transition: background .15s ease, color .15s ease;
}
.seg a:hover { color: var(--text); }
.seg a.active {
    background: #fff;
    color: var(--primary);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

/* ---------- 订单卡片 ---------- */
.order-card { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.order-card .oc-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}
.order-card .oc-no { font-size: 12px; color: var(--text-dim); }
.order-card .oc-route { display: flex; flex-direction: column; gap: 4px; font-size: 13.5px; }
.order-card .oc-route .line { display: flex; gap: 8px; align-items: baseline; }
.order-card .oc-route .k { color: var(--text-dim); font-size: 12.5px; min-width: 62px; flex: 0 0 auto; }
.order-card .oc-route .line span:last-child { word-break: break-word; }
.order-card .oc-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
    padding-top: 10px;
    border-top: 1px solid var(--line);
}
.price { font-size: 17px; font-weight: 600; color: var(--price); }
.price small { font-size: 12px; font-weight: 400; color: var(--text-dim); }

/* ---------- 聊天气泡 ---------- */
.chat-box {
    height: 360px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}
.msg { display: flex; flex-direction: column; max-width: 78%; }
.msg .meta { font-size: 11.5px; color: var(--text-dim); margin-bottom: 3px; }
.msg .bubble {
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 13.5px;
    line-height: 1.6;
    word-break: break-word;
    background: #fff;
    border: 1px solid var(--line);
}
.msg.me { align-self: flex-end; align-items: flex-end; }
.msg.me .bubble { background: var(--primary); border-color: var(--primary); color: #fff; }
.msg.other { align-self: flex-start; }
.msg.admin .bubble { background: var(--success-soft); border-color: #c8ecd8; color: var(--success-text); }
.chat-input { display: flex; gap: 8px; margin-top: 10px; }
.chat-input input { flex: 1; min-width: 0; }

/* ---------- 时间线 ---------- */
.timeline { list-style: none; }
.timeline li {
    position: relative;
    padding: 0 0 16px 20px;
    border-left: 2px solid var(--line);
}
.timeline li:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline li::before {
    content: "";
    position: absolute;
    left: -6px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cbd0d8;
    box-shadow: 0 0 0 3px #fff;
}
.timeline li.done::before { background: var(--success); }
.timeline .tl-title { font-size: 13.5px; font-weight: 500; }
.timeline .tl-time { font-size: 12px; color: var(--text-dim); }

/* ---------- 工具类 ---------- */
.muted { color: var(--text-dim); }
.small { font-size: 12.5px; }
.center { text-align: center; }
.right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.between { justify-content: space-between; }
.center-y { align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none !important; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .3px; }
.divider { height: 1px; background: var(--line); margin: 14px 0; }
.empty { text-align: center; padding: 40px 16px; color: var(--text-dim); font-size: 13.5px; }

/* ---------- 分页 ---------- */
.pager { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.pager a, .pager span {
    min-width: 34px;
    padding: 6px 10px;
    text-align: center;
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--text-sub);
}
.pager a:hover { border-color: var(--line-strong); color: var(--text); }
.pager .cur { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 上传预览 ---------- */
.upload-preview {
    margin-top: 10px;
    max-width: 100%;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d6d9e0; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #c2c6d0; }

/* ---------- 后台侧边导航 ---------- */
.admin-layout { display: flex; gap: 16px; align-items: flex-start; }
.sidebar {
    width: 200px;
    flex: 0 0 200px;
    padding: 10px;
    position: sticky;
    top: 72px;
}
.sidebar a {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13.5px;
    color: var(--text-sub);
    margin-bottom: 2px;
    transition: background .15s ease, color .15s ease;
}
.sidebar a:hover { background: var(--bg-soft); color: var(--text); }
.sidebar a.active { background: var(--primary-soft); color: var(--primary); font-weight: 500; }
.sidebar .side-group {
    font-size: 11px;
    color: var(--text-dim);
    padding: 10px 12px 4px;
    letter-spacing: .5px;
}
.main-col { flex: 1; min-width: 0; }

@media (max-width: 860px) {
    .admin-layout { flex-direction: column; }
    .sidebar {
        width: 100%;
        flex: none;
        position: static;
        display: flex;
        flex-wrap: nowrap;
        gap: 6px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 8px;
    }
    .sidebar a { margin-bottom: 0; white-space: nowrap; }
    .sidebar .side-group { display: none; }
    .sidebar > div { white-space: nowrap; }
}

/* ---------- 轻提示 toast ---------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 36px;
    transform: translate(-50%, 16px);
    padding: 10px 20px;
    font-size: 13.5px;
    color: var(--text);
    background: #fff;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    box-shadow: 0 6px 24px rgba(16, 24, 40, .12);
    opacity: 0;
    transition: opacity .25s ease, transform .25s ease;
    z-index: 9999;
    pointer-events: none;
    max-width: calc(100vw - 32px);
    text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.success { border-color: #c8ecd8; color: var(--success-text); }
.toast.error   { border-color: #f6d0d0; color: var(--danger-text); }

/* ---------- 移动端细节 ---------- */
@media (max-width: 640px) {
    .wrap { padding: 16px 12px 40px; }
    .wrap-narrow { padding: 24px 12px; }
    .page-title { font-size: 18px; }
    .card { padding: 14px; }
    .stat .value { font-size: 21px; }
    .topbar { padding: 10px 12px; gap: 8px; }
    .topbar .brand { font-size: 15px; }
    .topnav a { padding: 5px 9px; font-size: 13px; }
    .chat-box { height: 300px; }
    .msg { max-width: 88%; }
    .btn { padding: 9px 14px; }
    .price { font-size: 16px; }
}

/* 超小屏 */
@media (max-width: 380px) {
    .topnav a { padding: 5px 7px; font-size: 12.5px; }
    .btn-sm { padding: 5px 8px; font-size: 12px; }
}