:root {
    color-scheme: light;
    --bg: #eef3f8;
    --panel: #ffffff;
    --panel-soft: #f7fafc;
    --text: #172033;
    --muted: #667085;
    --line: #dce4ee;
    --primary: #2563eb;
    --primary-dark: #1746aa;
    --danger: #d92d20;
    --success: #067647;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    background: var(--bg);
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select {
    font: inherit;
}

code {
    padding: 2px 5px;
    border-radius: 6px;
    background: #eef2f7;
}

.login-page,
.install-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
    background:
        radial-gradient(circle at 15% 10%, rgba(37, 99, 235, .18), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(6, 118, 71, .13), transparent 28%),
        var(--bg);
}

.login-shell,
.install-shell {
    width: min(100%, 920px);
}

.login-card,
.panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 22px 60px rgba(16, 24, 40, .08);
}

.login-card {
    width: min(420px, 100%);
    margin: 0 auto;
    padding: 32px;
}

.login-card h1,
.install-head h1,
.admin-topbar h1,
.panel h2 {
    margin: 4px 0 0;
    letter-spacing: 0;
}

.eyebrow {
    margin: 0;
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.login-card label,
.form-stack label,
.form-grid label {
    display: grid;
    gap: 8px;
}

.login-card label {
    margin-top: 18px;
}

label span {
    color: #344054;
    font-size: 14px;
    font-weight: 700;
}

input,
select {
    width: 100%;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 12px;
    outline: 0;
    background: #fff;
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.button {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 16px;
    color: #243044;
    font-weight: 700;
    background: #fff;
    cursor: pointer;
}

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

.button.primary:hover {
    background: var(--primary-dark);
}

.button.full {
    width: 100%;
    margin-top: 22px;
}

.muted-link,
.ghost-link {
    color: var(--muted);
    font-size: 14px;
}

.muted-link {
    display: block;
    margin-top: 16px;
    text-align: center;
}

.notice {
    border: 1px solid var(--line);
    border-radius: 8px;
    margin: 0 0 18px;
    padding: 12px 14px;
    background: var(--panel-soft);
}

.notice.success {
    border-color: rgba(6, 118, 71, .22);
    color: var(--success);
    background: #ecfdf3;
}

.notice.danger {
    border-color: rgba(217, 45, 32, .22);
    color: var(--danger);
    background: #fef3f2;
}

.install-panel {
    padding: 28px;
}

.install-head,
.panel-head,
.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
}

.requirements {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
}

.requirements span {
    border-radius: 999px;
    padding: 7px 12px;
    font-size: 13px;
    font-weight: 700;
}

.requirements .ok {
    color: var(--success);
    background: #ecfdf3;
}

.requirements .bad {
    color: var(--danger);
    background: #fef3f2;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-actions {
    grid-column: 1 / -1;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.admin-page {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
}

.sidebar {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    border-right: 1px solid rgba(255, 255, 255, .08);
    padding: 22px;
    color: #fff;
    background: #111827;
}

.brand {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.brand span {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border-radius: 8px;
    color: #111827;
    font-weight: 900;
    background: #93c5fd;
}

.brand strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar nav {
    display: grid;
    gap: 8px;
}

.sidebar nav a,
.sidebar-foot a {
    min-height: 42px;
    border-radius: 8px;
    padding: 11px 12px;
    color: rgba(255, 255, 255, .72);
}

.sidebar nav a.active,
.sidebar nav a:hover,
.sidebar-foot a:hover {
    color: #fff;
    background: rgba(255, 255, 255, .1);
}

.sidebar-foot {
    display: grid;
    gap: 6px;
    margin-top: auto;
}

.admin-main {
    width: min(1240px, 100%);
    padding: 28px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.stat-card {
    display: grid;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 20px;
    background: var(--panel);
}

.stat-card span {
    color: var(--muted);
    font-size: 14px;
}

.stat-card strong {
    font-size: 30px;
    line-height: 1;
}

.panel {
    padding: 22px;
}

.action-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.admin-grid.two {
    display: grid;
    grid-template-columns: minmax(300px, 390px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.form-stack {
    display: grid;
    gap: 16px;
}

.check-line {
    display: flex !important;
    grid-template-columns: none !important;
    align-items: center;
    gap: 9px !important;
}

.check-line input {
    width: 18px;
    height: 18px;
}

.check-line span {
    font-weight: 500;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
    vertical-align: middle;
}

th {
    color: var(--muted);
    font-size: 13px;
}

td small {
    display: block;
    max-width: 360px;
    overflow: hidden;
    color: var(--muted);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.row-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.row-actions a,
.row-actions button {
    border: 0;
    padding: 0;
    color: var(--primary);
    background: transparent;
    cursor: pointer;
}

.row-actions button {
    color: var(--danger);
}

.settings-form {
    max-width: 980px;
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin: 18px 0;
}

.upload-box {
    display: grid;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    background: var(--panel-soft);
}

.upload-box > span {
    color: #344054;
    font-weight: 700;
}

.upload-box img {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 8px;
    object-fit: cover;
    background: #e4e9f1;
}

.upload-box audio {
    width: 100%;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.gallery-item {
    display: grid;
    gap: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 8px;
    background: #fff;
}

.gallery-item img {
    aspect-ratio: 16 / 9;
}

.gallery-item small {
    overflow: hidden;
    color: var(--muted);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mini-danger {
    min-height: 30px;
    border: 1px solid rgba(217, 45, 32, .24);
    border-radius: 7px;
    color: var(--danger);
    background: #fff;
    cursor: pointer;
}

.muted {
    margin: 0;
    color: var(--muted);
}

@media (max-width: 1000px) {
    .admin-page {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
        height: auto;
    }

    .sidebar nav,
    .sidebar-foot {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-grid.two,
    .stats-grid,
    .media-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .login-page,
    .install-page,
    .admin-main {
        padding: 16px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .install-head,
    .panel-head,
    .admin-topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .sidebar nav,
    .sidebar-foot {
        grid-template-columns: 1fr;
    }
}