/* 后台登录页 — 舒心绿品牌风格 / 毛玻璃 / 沉浸式 */
:root {
    --al-primary: #2B7B6B;      /* 舒心绿（品牌主色） */
    --al-primary-2: #38b29a;    /* 薄荷绿（渐变辅色） */
    --al-accent: #176b5e;       /* 深绿（文字/渐变） */
    --al-text: #0f2e29;
    --al-muted: #5b7a73;
    --al-border: rgba(43, 123, 107, 0.16);
    --al-radius: 18px;
    --al-glass: rgba(255, 255, 255, 0.72);
    --al-font: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

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

body.admin-login-page {
    font-family: var(--al-font);
    min-height: 100vh;
    color: var(--al-text);
    background: linear-gradient(135deg, #e7f4f0 0%, #d7ece6 45%, #cfe9e2 100%);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* 顶部导航 */
.admin-login-topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    height: 64px;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--al-border);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.7) inset;
}

.admin-login-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    min-width: 0;
}

.admin-login-brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--al-primary), var(--al-primary-2));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.admin-login-brand-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.admin-login-brand-text strong {
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-login-brand-text small {
    font-size: 11px;
    color: var(--al-muted);
}

.admin-login-topnav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.admin-login-topnav a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--al-muted);
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.admin-login-topnav a:hover {
    background: rgba(43, 123, 107, 0.08);
    color: var(--al-primary);
}

.admin-login-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--al-border);
    font-size: 12px;
    font-weight: 600;
    color: var(--al-accent);
    margin-bottom: 16px;
    backdrop-filter: blur(8px);
}

.admin-feature-toggle {
    display: none;
    width: 100%;
    min-height: 42px;
    margin-bottom: 14px;
    border: 1px dashed rgba(43, 123, 107, 0.35);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.55);
    color: var(--al-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

/* 沉浸式动态光斑 */
body.admin-login-page::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(38% 38% at 12% 18%, rgba(43, 123, 107, 0.22), transparent 60%),
        radial-gradient(42% 42% at 88% 12%, rgba(56, 178, 154, 0.20), transparent 60%),
        radial-gradient(46% 46% at 78% 88%, rgba(23, 107, 94, 0.18), transparent 62%),
        radial-gradient(40% 40% at 18% 82%, rgba(120, 200, 180, 0.18), transparent 60%);
    filter: blur(10px);
    z-index: 0;
    animation: alFloat 18s ease-in-out infinite alternate;
}

@keyframes alFloat {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    100% { transform: translate3d(0, -22px, 0) scale(1.06); }
}

/* 背景纹理图（若存在则叠加） */
body.admin-login-page::after {
    content: "";
    position: fixed;
    inset: 0;
    background: url("../../assets/images/home-hvac-bg.svg") center / cover no-repeat;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
}

.admin-login-wrap {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px 40px;
}

.admin-login-inner {
    width: 100%;
    max-width: 1140px;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(330px, 430px);
    gap: 36px;
    align-items: center;
}

/* 左侧品牌区 */
.admin-login-left h1 {
    font-size: clamp(28px, 3.4vw, 40px);
    line-height: 1.25;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    background: linear-gradient(120deg, #176b5e, #2B7B6B 55%, #38b29a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.admin-login-left .subtitle {
    font-size: 15px;
    color: var(--al-muted);
    margin-bottom: 28px;
    line-height: 1.75;
    max-width: 460px;
}

.admin-feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.admin-feature-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 16px;
    border-radius: 14px;
    background: var(--al-glass);
    border: 1px solid var(--al-border);
    box-shadow: 0 6px 22px rgba(15, 46, 41, 0.06);
    backdrop-filter: blur(10px);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.admin-feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(15, 46, 41, 0.12);
    border-color: rgba(43, 123, 107, 0.35);
}

.admin-feature-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--al-primary), var(--al-primary-2));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(43, 123, 107, 0.28);
}

.admin-feature-item h3 { font-size: 14px; margin-bottom: 5px; color: var(--al-text); }
.admin-feature-item p { font-size: 12px; color: var(--al-muted); line-height: 1.55; }

/* 右侧登录卡片 */
.admin-login-card {
    background: var(--al-glass);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--al-radius);
    box-shadow: 0 24px 60px rgba(15, 46, 41, 0.16);
    padding: 36px 30px;
    backdrop-filter: blur(18px) saturate(140%);
    animation: alCardIn .6s cubic-bezier(.2, .8, .2, 1) both;
    scroll-margin-top: 88px;
}

@keyframes alCardIn {
    from { opacity: 0; transform: translateY(16px) scale(.98); }
    to   { opacity: 1; transform: none; }
}

.admin-login-head { text-align: center; margin-bottom: 26px; }

.admin-login-logo {
    width: 60px;
    height: 60px;
    margin: 0 auto 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--al-primary), var(--al-primary-2));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 10px 26px rgba(43, 123, 107, 0.35);
}

.admin-login-head h2 { font-size: 23px; margin-bottom: 6px; color: var(--al-text); }
.admin-login-head p { font-size: 13px; color: var(--al-muted); }

.admin-error {
    background: rgba(254, 242, 242, 0.92);
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 13px;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    animation: alShake .45s ease;
}

@keyframes alShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

.admin-form-group { margin-bottom: 18px; }

.admin-form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #334d47;
    margin-bottom: 8px;
}

/* 带图标输入框 */
.admin-input-wrap { position: relative; }

.admin-input-wrap > i.fa-solid,
.admin-input-wrap > i.fas {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--al-muted);
    font-size: 14px;
    pointer-events: none;
}

.admin-input-wrap input {
    width: 100%;
    min-height: 46px;
    padding: 0 14px 0 40px;
    border: 1px solid #e2ece9;
    border-radius: 12px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    transition: border-color .2s, box-shadow .2s, background .2s;
}

.admin-input-wrap.has-toggle input {
    padding-right: 44px;
}

.admin-pwd-toggle {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--al-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, background 0.15s;
}

.admin-pwd-toggle:hover {
    color: var(--al-primary);
    background: rgba(43, 123, 107, 0.08);
}

.admin-input-wrap input:focus {
    outline: none;
    border-color: var(--al-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(43, 123, 107, 0.14);
}

.admin-captcha-row { display: flex; gap: 10px; align-items: center; }
.admin-captcha-row .admin-input-wrap { flex: 1; min-width: 0; }

.admin-captcha-image {
    width: 124px;
    height: 46px;
    border-radius: 12px;
    border: 1px solid #e2ece9;
    cursor: pointer;
    object-fit: cover;
    background: #fff;
    flex-shrink: 0;
    transition: transform .2s ease, box-shadow .2s ease;
}

.admin-captcha-image:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 16px rgba(15, 46, 41, 0.15);
}

.admin-btn-login {
    width: 100%;
    min-height: 48px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--al-primary), var(--al-primary-2));
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    box-shadow: 0 10px 26px rgba(43, 123, 107, 0.32);
    transition: transform .2s, box-shadow .25s, filter .2s, opacity .2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.admin-btn-login.is-loading,
.admin-btn-login:disabled {
    opacity: 0.88;
    cursor: wait;
    transform: none;
}

.admin-login-security {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 14px;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid rgba(43, 123, 107, 0.1);
}

.admin-login-security span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    color: var(--al-muted);
}

.admin-login-security i {
    color: var(--al-primary);
    font-size: 10px;
}

.admin-btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 36px rgba(43, 123, 107, 0.42);
    filter: brightness(1.03);
}

.admin-btn-login:active { transform: translateY(0); }

.admin-login-foot {
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid rgba(43, 123, 107, 0.12);
    text-align: center;
    font-size: 12px;
    color: var(--al-muted);
}

.admin-login-foot a { color: var(--al-primary); text-decoration: none; font-weight: 600; }
.admin-login-foot a:hover { text-decoration: underline; }

@media (max-width: 960px) {
    .admin-login-inner { grid-template-columns: 1fr; }
    .admin-login-right { order: -1; }
    .admin-feature-toggle { display: inline-flex; }
    .admin-feature-grid {
        grid-template-columns: 1fr;
        display: none;
    }
    .admin-feature-grid.is-expanded { display: grid; }
    .admin-login-topbar { padding: 0 16px; }
    .admin-login-brand-text strong { max-width: 160px; }
}

@media (max-width: 560px) {
    .admin-login-topnav a span.hide-sm { display: none; }
    .admin-login-security { flex-direction: column; align-items: center; }
}

/* 尊重系统「减少动态效果」偏好 */
@media (prefers-reduced-motion: reduce) {
    body.admin-login-page::before { animation: none; }
    .admin-login-card { animation: none; }
    .admin-error { animation: none; }
    .admin-feature-item,
    .admin-btn-login,
    .admin-captcha-image { transition: none; }
}