/* ============ qyshop 后台：深色科技风 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 14px/1.6 "Microsoft YaHei", sans-serif; color: #cfd8e3; background: #0b1220; display: flex; min-height: 100vh; }
a { color: inherit; text-decoration: none; }

/* 侧边栏 */
.sidebar { width: 220px; flex-shrink: 0; background: linear-gradient(180deg, #0e1a30, #0a1120); border-right: 1px solid #16263f; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.brand { padding: 22px 20px 18px; font-size: 19px; font-weight: bold; color: #fff; letter-spacing: 1px; border-bottom: 1px solid #16263f; }
.brand span { display: block; font-size: 10px; font-weight: normal; letter-spacing: 3px; color: #3f6ea8; margin-top: 4px; }
.sidebar nav { flex: 1; padding: 14px 0; }
.sidebar nav a { display: block; padding: 12px 22px; color: #8ba3c2; border-left: 3px solid transparent; transition: .15s; }
.sidebar nav a:hover { color: #fff; background: rgba(31,58,105,.35); }
.sidebar nav a.on { color: #4fd1ff; border-left-color: #4fd1ff; background: linear-gradient(90deg, rgba(31,105,180,.25), transparent); }
.sidebar-foot { padding: 14px 20px; border-top: 1px solid #16263f; font-size: 13px; }
.sidebar-foot a { display: block; padding: 5px 0; color: #5c7699; }
.sidebar-foot a:hover { color: #4fd1ff; }

/* 主区 */
.main { flex: 1; min-width: 0; }
.tophead { height: 62px; display: flex; justify-content: space-between; align-items: center; padding: 0 28px; background: rgba(13,23,42,.85); border-bottom: 1px solid #16263f; backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 5; }
.crumb-title { font-size: 17px; font-weight: bold; color: #fff; }
.admin-info { font-size: 13px; color: #8ba3c2; }
.admin-info span { color: #4fd1ff; }
.content { padding: 24px 28px; }

/* 卡片与统计 */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 22px; }
.stat-card { background: linear-gradient(135deg, #101c33, #0c1526); border: 1px solid #1a2c49; border-radius: 10px; padding: 20px 22px; position: relative; overflow: hidden; }
.stat-card::after { content: ''; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px; border-radius: 50%; background: radial-gradient(circle, rgba(79,209,255,.15), transparent 70%); }
.stat-card .num { font-size: 28px; font-weight: bold; color: #fff; margin-top: 6px; font-family: Consolas, monospace; }
.stat-card .label { color: #7f9ac0; font-size: 13px; }
.stat-card.cyan .num { color: #4fd1ff; } .stat-card.green .num { color: #3ddc97; }
.stat-card.orange .num { color: #ffb13c; } .stat-card.purple .num { color: #b48cff; }

.panel { background: #0e1830; border: 1px solid #1a2c49; border-radius: 10px; padding: 20px 24px; margin-bottom: 22px; }
.panel h3 { font-size: 15px; color: #fff; margin-bottom: 14px; padding-left: 10px; border-left: 3px solid #4fd1ff; }
.chart-row { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; }

/* 表格 */
table.tb { width: 100%; border-collapse: collapse; }
table.tb th { text-align: left; font-weight: normal; color: #6a86ab; padding: 10px 10px; border-bottom: 1px solid #1a2c49; font-size: 12px; }
table.tb td { padding: 11px 10px; border-bottom: 1px solid #131f38; font-size: 13px; }
table.tb tr:hover td { background: rgba(31,58,105,.18); }
table.tb img { width: 48px; height: 48px; border-radius: 6px; object-fit: cover; background: #16263f; }
.tag { padding: 2px 10px; border-radius: 10px; font-size: 12px; display: inline-block; }
.tg-blue { background: rgba(79,209,255,.12); color: #4fd1ff; border: 1px solid rgba(79,209,255,.3); }
.tg-green { background: rgba(61,220,151,.12); color: #3ddc97; border: 1px solid rgba(61,220,151,.3); }
.tg-orange { background: rgba(255,177,60,.12); color: #ffb13c; border: 1px solid rgba(255,177,60,.3); }
.tg-gray { background: rgba(140,160,190,.12); color: #8ba3c2; border: 1px solid rgba(140,160,190,.25); }
.tg-red { background: rgba(255,99,99,.12); color: #ff6363; border: 1px solid rgba(255,99,99,.3); }

/* 按钮 / 表单 */
.btn { display: inline-block; padding: 8px 18px; border-radius: 6px; cursor: pointer; font-size: 13px; background: linear-gradient(135deg, #1a6dff, #0ea5e9); color: #fff; border: 0; }
.btn:hover { filter: brightness(1.15); }
.btn.ghost { background: transparent; border: 1px solid #2a4368; color: #8ba3c2; }
.btn.danger { background: linear-gradient(135deg, #ef4444, #dc2626); }
.btn.sm { padding: 4px 12px; font-size: 12px; }
input[type=text], input[type=password], input[type=number], input[type=file], select, textarea {
  background: #0b1526; border: 1px solid #23395c; color: #d7e3f4; border-radius: 6px; padding: 9px 12px; outline: none; font-size: 13px; }
input:focus, select:focus, textarea:focus { border-color: #1a6dff; }
textarea { width: 100%; min-height: 90px; resize: vertical; }
.filter-bar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.form-box { max-width: 760px; }
.form-box .field { margin-bottom: 14px; }
.form-box label { display: block; color: #7f9ac0; margin-bottom: 6px; font-size: 12px; }
.form-box input, .form-box select { width: 100%; }
.form-box .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.flash { padding: 10px 16px; border-radius: 6px; margin-bottom: 14px; }
.flash.ok { background: rgba(61,220,151,.1); color: #3ddc97; border: 1px solid rgba(61,220,151,.3); }
.flash.err { background: rgba(255,99,99,.1); color: #ff6363; border: 1px solid rgba(255,99,99,.3); }
.pager { display: flex; gap: 8px; margin-top: 16px; }
.pager a, .pager span { padding: 6px 13px; border: 1px solid #23395c; border-radius: 5px; font-size: 13px; }
.pager .cur { border-color: #1a6dff; color: #4fd1ff; }
.preview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-top: 12px; }
.preview-card { background: #0b1526; border: 1px solid #23395c; border-radius: 8px; overflow: hidden; }
.preview-card img { width: 100%; height: 140px; object-fit: cover; }
.preview-card .p-body { padding: 10px; font-size: 12px; }
.preview-card .p-body .t { height: 34px; overflow: hidden; }
.mono { font-family: Consolas, monospace; font-size: 12px; }

/* 登录页 */
.login-page { margin: auto; width: 380px; background: linear-gradient(160deg, #101c33, #0a1322); border: 1px solid #1a2c49; border-radius: 14px; padding: 38px 40px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.login-page h1 { text-align: center; color: #fff; font-size: 22px; margin-bottom: 6px; }
.login-page .sub { text-align: center; color: #4fd1ff; font-size: 11px; letter-spacing: 4px; margin-bottom: 26px; }
.login-page .field { margin-bottom: 16px; }
.login-page label { display: block; color: #7f9ac0; font-size: 12px; margin-bottom: 6px; }
.login-page input { width: 100%; }
.login-btn { width: 100%; padding: 11px; border: 0; border-radius: 6px; background: linear-gradient(135deg, #1a6dff, #0ea5e9); color: #fff; font-size: 15px; cursor: pointer; letter-spacing: 6px; }
.login-page .tip { text-align: center; color: #5c7699; font-size: 12px; margin-top: 16px; }
body.login-body { display: flex; background: radial-gradient(circle at 20% 20%, #12233f, #060a13); }