/* 后台登录页：左品牌 + 右表单 */
:root {
	--login-brand-from: #1e4fd8;
	--login-brand-to: #0ea5e9;
	--login-form-bg: #eef2f8;
	--login-card-bg: #ffffff;
	--login-text: #1e293b;
	--login-text-muted: #64748b;
	--login-border: #dce3ef;
	--login-primary: #2563eb;
	--login-primary-hover: #1d4ed8;
	--login-radius: 14px;
	--login-shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
}

body.admin-login-page {
	margin: 0;
	min-height: 100vh;
	color: var(--login-text);
	background: var(--login-form-bg);
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
}

.admin-login-page a {
	color: var(--login-primary);
}

#admin-login-particles {
	position: fixed;
	inset: 0;
	z-index: 0;
	pointer-events: none;
	opacity: 0.45;
}

/* 右上角多语言 */
.admin-login-lang {
	position: fixed;
	top: 20px;
	right: 24px;
	z-index: 30;
}

.admin-login-lang__toggle {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	border-radius: 12px;
	background: #fff;
	border: 1px solid var(--login-border);
	color: var(--login-primary) !important;
	font-size: 18px;
	text-decoration: none !important;
	box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.admin-login-lang__toggle:hover,
.admin-login-lang__toggle:focus {
	border-color: var(--login-primary);
	box-shadow: 0 6px 20px rgba(37, 99, 235, 0.15);
	color: var(--login-primary-hover) !important;
}

.admin-login-lang__menu {
	min-width: 140px;
	margin-top: 8px;
	padding: 6px 0;
	border-radius: 12px;
	background: #fff;
	border: 1px solid var(--login-border);
	box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
}

.admin-login-lang__menu > li > a {
	padding: 10px 18px;
	color: var(--login-text) !important;
}

.admin-login-lang__menu > li.active > a,
.admin-login-lang__menu > li > a:hover {
	background: #eff6ff;
	color: var(--login-primary) !important;
}

/* 主布局 */
.admin-login-shell {
	position: relative;
	display: flex;
	min-height: 100vh;
	z-index: 1;
}

.admin-login-shell__brand,
.admin-login-shell__form-wrap {
	position: relative;
	z-index: 1;
}

/* —— 左侧品牌区 —— */
.admin-login-shell__brand {
	flex: 0 0 56%;
	max-width: 56%;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 56px 64px;
	background: linear-gradient(145deg, var(--login-brand-from) 0%, var(--login-brand-to) 100%);
	color: #fff;
	overflow: hidden;
}

.admin-login-shell__brand::before {
	content: '';
	position: absolute;
	inset: 0;
	background:
		radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.12) 0%, transparent 45%),
		radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.1) 0%, transparent 40%);
	pointer-events: none;
}

.admin-login-shell__brand::after {
	content: '';
	position: absolute;
	inset: 0;
	background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
		linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
	background-size: 48px 48px;
	opacity: 0.5;
	pointer-events: none;
}

.admin-login-brand {
	position: relative;
	width: 100%;
	max-width: 480px;
}

.admin-login-brand__top {
	display: flex;
	align-items: center;
	gap: 20px;
	margin-bottom: 28px;
}

.admin-login-brand__logo {
	flex-shrink: 0;
	width: 72px;
	height: 72px;
	border-radius: 18px;
	object-fit: cover;
	box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
	border: 2px solid rgba(255, 255, 255, 0.35);
	background: rgba(255, 255, 255, 0.15);
}

.admin-login-brand__logo--placeholder {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 30px;
	font-weight: 700;
	color: #fff;
	background: rgba(255, 255, 255, 0.2);
}

.admin-login-brand__meta {
	min-width: 0;
	flex: 1;
}

.admin-login-brand__title {
	margin: 0 0 8px;
	font-size: 28px;
	font-weight: 700;
	line-height: 1.25;
	color: #fff;
	letter-spacing: -0.02em;
}

.admin-login-brand__name {
	display: block;
	word-break: break-word;
}

.admin-login-brand__version {
	display: inline-block;
	font-size: 12px;
	font-weight: 600;
	line-height: 1;
	color: rgba(255, 255, 255, 0.95);
	padding: 5px 10px;
	border-radius: 6px;
	background: rgba(255, 255, 255, 0.18);
	border: 1px solid rgba(255, 255, 255, 0.28);
}

.admin-login-brand__subtitle {
	margin: 0 0 32px;
	font-size: 15px;
	line-height: 1.75;
	color: rgba(255, 255, 255, 0.88);
}

.admin-login-brand__features {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 14px;
}

.admin-login-brand__features li {
	display: flex;
	align-items: flex-start;
	gap: 14px;
	padding: 16px 18px;
	border-radius: var(--login-radius);
	background: rgba(255, 255, 255, 0.1);
	border: 1px solid rgba(255, 255, 255, 0.16);
	font-size: 14px;
	line-height: 1.55;
	color: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(4px);
}

.admin-login-brand__features li i {
	flex-shrink: 0;
	width: 36px;
	height: 36px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: 10px;
	font-size: 15px;
	background: rgba(255, 255, 255, 0.2);
	color: #fff;
}

.admin-login-brand__features li span {
	flex: 1;
	padding-top: 6px;
}

/* —— 右侧表单区 —— */
.admin-login-shell__form-wrap {
	flex: 1;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 48px 40px;
	background: var(--login-form-bg);
}

.admin-login-panel {
	width: 100%;
	max-width: 440px;
}

.admin-login-card {
	padding: 36px 32px 32px;
	border-radius: 20px;
	background: var(--login-card-bg);
	border: 1px solid var(--login-border);
	box-shadow: var(--login-shadow);
}

.admin-login-card__head {
	margin-bottom: 28px;
}

.admin-login-card__title {
	margin: 0 0 6px;
	font-size: 26px;
	font-weight: 700;
	color: var(--login-text);
	letter-spacing: -0.02em;
}

.admin-login-card__desc {
	margin: 0;
	font-size: 14px;
	line-height: 1.55;
	color: var(--login-text-muted);
}

/* 表单 */
.admin-login-form {
	margin: 0;
}

.admin-login-form .form-group {
	margin: 0 0 20px;
}

.admin-login-form .form-group:last-child {
	margin-bottom: 0;
}

.admin-login-field__label {
	display: block;
	margin: 0 0 8px;
	font-size: 13px;
	font-weight: 600;
	color: var(--login-text);
}

.admin-login-field__box {
	display: flex;
	align-items: stretch;
	min-height: 48px;
	border-radius: var(--login-radius);
	border: 1px solid var(--login-border);
	background: #f8fafc;
	overflow: hidden;
	transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.admin-login-field__box:focus-within {
	border-color: var(--login-primary);
	background: #fff;
	box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.admin-login-field__icon {
	flex: 0 0 48px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #64748b;
	font-size: 16px;
	background: #f1f5f9;
	border-right: 1px solid var(--login-border);
	transition: color 0.15s ease, background 0.15s ease;
}

.admin-login-field__box:focus-within .admin-login-field__icon {
	color: var(--login-primary);
	background: #eff6ff;
}

.admin-login-field__input {
	flex: 1 1 auto;
	width: 100%;
	min-width: 0;
	height: 48px;
	padding: 0 16px;
	margin: 0;
	border: none !important;
	border-radius: 0 !important;
	background: transparent !important;
	color: var(--login-text);
	font-size: 15px;
	line-height: 48px;
	box-shadow: none !important;
}

.admin-login-field__input:focus {
	outline: none;
}

.admin-login-field__input::placeholder {
	color: #94a3b8;
}

.admin-login-field.has-error .admin-login-field__box,
.admin-login-form .has-error .admin-login-field__box {
	border-color: #f87171;
	box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

.admin-login-captcha-row {
	display: flex;
	align-items: stretch;
	gap: 12px;
}

.admin-login-field__box--flex {
	flex: 1 1 auto;
	min-width: 0;
}

.admin-login-captcha {
	flex: 0 0 120px;
	display: block;
	height: 48px;
	margin: 0;
	padding: 0;
	border: 1px solid var(--login-border);
	border-radius: var(--login-radius);
	background: #f8fafc;
	overflow: hidden;
	cursor: pointer;
	transition: border-color 0.15s ease;
}

.admin-login-captcha:hover {
	border-color: var(--login-primary);
}

.admin-login-captcha__img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.admin-login-options {
	margin-top: 2px !important;
	margin-bottom: 24px !important;
}

.admin-login-remember {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	margin: 0;
	font-size: 14px;
	font-weight: normal;
	color: var(--login-text-muted);
	cursor: pointer;
	user-select: none;
}

.admin-login-remember input[type="checkbox"] {
	margin: 0;
	width: 17px;
	height: 17px;
	accent-color: var(--login-primary);
	cursor: pointer;
}

.admin-login-actions {
	margin-top: 4px !important;
}

.admin-login-submit {
	height: 50px;
	font-size: 15px;
	font-weight: 600;
	border: none !important;
	border-radius: var(--login-radius) !important;
	background: linear-gradient(90deg, #2563eb 0%, #0ea5e9 100%) !important;
	box-shadow: 0 8px 24px rgba(37, 99, 235, 0.28);
	transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.admin-login-submit:hover,
.admin-login-submit:focus {
	transform: translateY(-1px);
	box-shadow: 0 12px 28px rgba(37, 99, 235, 0.35);
	color: #fff;
}

.admin-login-alert {
	display: none;
	margin-bottom: 20px;
	padding: 12px 14px;
	border-radius: var(--login-radius);
	font-size: 13px;
	line-height: 1.5;
}

.admin-login-alert.is-error {
	display: block;
	background: #fef2f2;
	border: 1px solid #fecaca;
	color: #b91c1c;
}

.admin-login-alert.is-success {
	display: block;
	background: #ecfdf5;
	border: 1px solid #a7f3d0;
	color: #047857;
}

/* 移动端：品牌条 + 表单 */
@media (max-width: 1024px) {
	.admin-login-shell {
		flex-direction: column;
	}

	.admin-login-shell__brand {
		flex: none;
		max-width: none;
		padding: 36px 28px 32px;
	}

	.admin-login-brand {
		max-width: none;
	}

	.admin-login-brand__subtitle {
		margin-bottom: 0;
		font-size: 14px;
	}

	.admin-login-brand__features {
		display: none;
	}

	.admin-login-shell__form-wrap {
		flex: 1;
		padding: 28px 20px 40px;
		align-items: flex-start;
	}

	.admin-login-panel {
		max-width: none;
	}

	.admin-login-card {
		padding: 28px 24px 24px;
		border-radius: 16px;
	}

	.admin-login-card__title {
		font-size: 22px;
	}
}

@media (max-width: 480px) {
	.admin-login-lang {
		top: 14px;
		right: 14px;
	}

	.admin-login-shell__brand {
		padding: 28px 20px 24px;
	}

	.admin-login-brand__top {
		gap: 14px;
		margin-bottom: 16px;
	}

	.admin-login-brand__logo,
	.admin-login-brand__logo--placeholder {
		width: 56px;
		height: 56px;
		border-radius: 14px;
		font-size: 24px;
	}

	.admin-login-brand__title {
		font-size: 22px;
	}

	.admin-login-brand__subtitle {
		display: -webkit-box;
		-webkit-line-clamp: 2;
		-webkit-box-orient: vertical;
		overflow: hidden;
	}

	.admin-login-shell__form-wrap {
		padding: 20px 16px 32px;
	}

	.admin-login-captcha {
		flex: 0 0 104px;
	}
}