/* ==========================================================================
   云启科技 管理后台样式
   ========================================================================== */

:root {
    --bg: #0A1230;
    --bg-2: #0C1638;
    --panel: #111D44;
    --panel-2: #16234F;
    --line: rgba(148, 163, 255, 0.14);
    --line-strong: rgba(148, 163, 255, 0.28);
    --primary: #2563EB;
    --violet: #7C3AED;
    --cyan: #22D3EE;
    --grad: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
    --text: #E8EDFF;
    --muted: #9AA6CF;
    --muted-2: #6B78A6;
    --danger: #F87171;
    --success: #34D399;
    --warning: #FBBF24;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ---------- 登录页 ---------- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background:
        radial-gradient(ellipse 60% 60% at 20% 10%, rgba(37,99,235,.35), transparent 60%),
        radial-gradient(ellipse 60% 60% at 85% 90%, rgba(124,58,237,.35), transparent 60%),
        var(--bg-2);
}
.login-box {
    width: 100%;
    max-width: 400px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 40px 36px;
    box-shadow: 0 24px 60px rgba(2, 6, 23, .5);
}
.login-brand { text-align: center; margin-bottom: 28px; }
.login-brand svg { margin: 0 auto 12px; }
.login-brand h1 { font-size: 22px; }
.login-brand p { color: var(--muted-2); font-size: 13px; margin-top: 4px; }
.login-error {
    background: rgba(248,113,113,.12);
    border: 1px solid rgba(248,113,113,.4);
    color: #FCA5A5;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 13px;
    margin-bottom: 18px;
}
.login-field { margin-bottom: 18px; }
.login-field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.login-field input {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--text);
    font-size: 14px;
}
.login-field input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.2);
}
.login-tip { text-align: center; color: var(--muted-2); font-size: 12px; margin-top: 16px; }
.login-back { display: block; text-align: center; color: var(--muted); font-size: 13px; margin-top: 12px; }
.login-back:hover { color: var(--cyan); }

/* ---------- 后台布局 ---------- */
.admin-wrap { min-height: 100vh; }
.admin-side {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: 232px;
    background: #080F2A;
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    z-index: 20;
}
.admin-brand {
    padding: 22px 22px 20px;
    border-bottom: 1px solid var(--line);
}
.admin-brand strong { display: block; font-size: 17px; }
.admin-brand small { color: var(--muted-2); font-size: 11px; letter-spacing: 2px; }
.admin-side nav { flex: 1; padding: 14px 12px; }
.admin-side nav a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 11px 14px;
    border-radius: 10px;
    color: var(--muted);
    margin-bottom: 4px;
    font-size: 14px;
    transition: background .2s, color .2s;
}
.admin-side nav a:hover { background: rgba(148,163,255,.08); color: var(--text); }
.admin-side nav a.active {
    background: var(--grad);
    color: #fff;
    box-shadow: 0 8px 20px rgba(70,80,230,.35);
}
.admin-side nav a svg { flex-shrink: 0; }
.admin-side-foot { padding: 16px; border-top: 1px solid var(--line); }
.admin-side-foot a { display: block; text-align: center; color: var(--muted); font-size: 13px; padding: 9px; border: 1px solid var(--line); border-radius: 9px; }
.admin-side-foot a:hover { color: var(--cyan); border-color: var(--line-strong); }

.admin-body { margin-left: 232px; min-height: 100vh; display: flex; flex-direction: column; }
.admin-top {
    height: 64px;
    background: rgba(12, 22, 56, .9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 10;
}
.admin-top h1 { font-size: 18px; font-weight: 600; }
.admin-user { display: flex; align-items: center; gap: 16px; color: var(--muted); font-size: 13px; }
.admin-user strong { color: var(--text); }

.admin-content { padding: 26px 28px 40px; flex: 1; }

/* ---------- 按钮 ---------- */
.ab-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: 9px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s, background .2s, border-color .2s, color .2s;
    background: transparent;
    font-family: inherit;
}
.ab-btn-primary { background: var(--grad); color: #fff; }
.ab-btn-primary:hover { box-shadow: 0 8px 20px rgba(70,80,230,.4); transform: translateY(-1px); }
.ab-btn-ghost { border-color: var(--line-strong); color: var(--muted); }
.ab-btn-ghost:hover { color: var(--cyan); border-color: rgba(34,211,238,.5); }
.ab-btn-danger { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.4); color: var(--danger); }
.ab-btn-danger:hover { background: rgba(248,113,113,.22); }
.ab-btn-sm { padding: 6px 13px; font-size: 12px; border-radius: 7px; }
.ab-btn-block { width: 100%; }

/* ---------- 统计卡片 ---------- */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}
.stat-card .sc-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: var(--grad-soft, rgba(37,99,235,.16));
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
}
.stat-card .sc-num { font-size: 32px; font-weight: 800; line-height: 1; }
.stat-card .sc-label { color: var(--muted); font-size: 13px; margin-top: 8px; }
.stat-card::after {
    content: "";
    position: absolute;
    right: -30px; top: -30px;
    width: 110px; height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124,58,237,.22), transparent 70%);
}

.panel-block {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    margin-bottom: 22px;
}
.panel-block h2 { font-size: 16px; margin-bottom: 18px; }

.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.quick-item {
    display: flex; flex-direction: column; gap: 10px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--bg-2);
    color: var(--muted);
    transition: border-color .2s, transform .2s;
}
.quick-item:hover { border-color: rgba(124,58,237,.5); transform: translateY(-3px); color: var(--text); }
.quick-item strong { font-size: 15px; color: var(--text); }
.quick-item span { font-size: 12px; }

/* ---------- 表格 ---------- */
.table-tools {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.table-tools h2 { font-size: 16px; }
.table-wrap {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow-x: auto;
}
table.admin-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}
.admin-table th, .admin-table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    vertical-align: middle;
}
.admin-table th {
    background: rgba(148,163,255,.05);
    color: var(--muted);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 1px;
    white-space: nowrap;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: rgba(148,163,255,.03); }
.admin-table .td-title { max-width: 360px; }
.admin-table .td-title strong { display: block; font-size: 14px; }
.admin-table .td-title small { color: var(--muted-2); }
.row-actions { display: flex; gap: 8px; white-space: nowrap; }
.row-actions form { display: inline; }
.table-thumb { width: 88px; height: 58px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); }

.ab-badge {
    display: inline-block;
    padding: 3px 11px;
    border-radius: 999px;
    font-size: 12px;
    background: rgba(34,211,238,.1);
    color: var(--cyan);
    border: 1px solid rgba(34,211,238,.3);
    white-space: nowrap;
}
.ab-badge.badge-gray { background: rgba(148,163,255,.08); color: var(--muted); border-color: var(--line); }
.ab-badge.badge-green { background: rgba(52,211,153,.1); color: var(--success); border-color: rgba(52,211,153,.3); }
.ab-badge.badge-red { background: rgba(248,113,113,.12); color: var(--danger); border-color: rgba(248,113,113,.35); }

.empty { text-align: center; color: var(--muted-2); padding: 50px 0; }

/* ---------- 表单 ---------- */
.form-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 28px 30px;
    max-width: 900px;
}
.ab-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 22px; }
.ab-form-group { margin-bottom: 20px; }
.ab-form-group.full { grid-column: 1 / -1; }
.ab-form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.ab-form-group label em { color: var(--danger); font-style: normal; }
.ab-form-group input[type="text"],
.ab-form-group input[type="number"],
.ab-form-group input[type="date"],
.ab-form-group input[type="tel"],
.ab-form-group input[type="email"],
.ab-form-group select,
.ab-form-group textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    border-radius: 9px;
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
}
.ab-form-group textarea { resize: vertical; min-height: 110px; line-height: 1.7; }
.ab-form-group input:focus, .ab-form-group select:focus, .ab-form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.18);
}
.ab-form-group .hint { color: var(--muted-2); font-size: 12px; margin-top: 6px; }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }

/* ---------- 留言 ---------- */
.msg-item {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: 14px;
    overflow: hidden;
}
.msg-item.unread { border-color: rgba(34,211,238,.45); }
.msg-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    flex-wrap: wrap;
}
.msg-head .msg-who { font-weight: 600; }
.msg-head .msg-meta { color: var(--muted-2); font-size: 12px; }
.msg-head .msg-company { color: var(--muted); font-size: 13px; }
.msg-head .msg-spacer { flex: 1; }
.msg-head .row-actions { flex-shrink: 0; }
.msg-body { padding: 0 20px 18px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.msg-body .msg-contact { margin-bottom: 8px; }
.msg-body .msg-contact span { margin-right: 20px; }
.msg-detail-toggle {
    cursor: pointer;
    color: var(--cyan);
    font-size: 13px;
    user-select: none;
}
details[open] .msg-detail-toggle .dt-open { display: none; }
details:not([open]) .msg-detail-toggle .dt-close { display: none; }
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }

.flash {
    background: rgba(52,211,153,.1);
    border: 1px solid rgba(52,211,153,.35);
    color: var(--success);
    padding: 11px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 13px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .stat-cards { grid-template-columns: repeat(2, 1fr); }
    .quick-grid { grid-template-columns: repeat(2, 1fr); }
    .ab-form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
    .admin-side {
        position: static;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--line);
    }
    .admin-brand { padding: 16px 20px; }
    .admin-side nav { display: flex; overflow-x: auto; padding: 8px 12px; gap: 6px; }
    .admin-side nav a { white-space: nowrap; margin-bottom: 0; padding: 8px 14px; }
    .admin-side-foot { display: none; }
    .admin-body { margin-left: 0; }
}
@media (max-width: 560px) {
    .stat-cards, .quick-grid { grid-template-columns: 1fr; }
    .admin-top { padding: 0 16px; }
    .admin-content { padding: 18px 14px 30px; }
    .form-card { padding: 20px; }
}