/* Admin login — split brand / auth layout */
.admin-login-page {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    background: #0b1220;
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    padding-bottom: env(safe-area-inset-bottom, 0);
    box-sizing: border-box;
}

.admin-login-shell {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
    box-sizing: border-box;
}

.admin-login-brand {
    position: relative;
    flex: 1.15;
    overflow: hidden;
    color: #e8eef7;
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(31, 167, 160, 0.22), transparent 55%),
        radial-gradient(ellipse 70% 50% at 90% 80%, rgba(56, 100, 180, 0.18), transparent 50%),
        linear-gradient(160deg, #0b1220 0%, #121c2e 45%, #0a1628 100%);
}

.admin-login-brand-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    right: -120px;
    bottom: -80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(31, 167, 160, 0.35), transparent 70%);
    filter: blur(8px);
    pointer-events: none;
    animation: admin-login-glow 8s ease-in-out infinite alternate;
}

.admin-login-brand-inner {
    position: relative;
    z-index: 1;
    max-width: 480px;
    padding: 12vh 64px 64px;
    padding-left: max(64px, env(safe-area-inset-left, 0px));
    opacity: 0;
    transform: translateY(16px);
    animation: admin-login-enter 0.7s ease forwards 0.08s;
}

.admin-login-brand-eyebrow {
    margin: 0 0 18px;
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(31, 167, 160, 0.95);
    font-weight: 600;
}

.admin-login-brand-name {
    margin: 0 0 20px;
    font-size: clamp(2rem, 3.2vw, 2.75rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.2;
    color: #fff;
}

.admin-login-brand-headline {
    margin: 0 0 14px;
    font-size: 1.25rem;
    font-weight: 500;
    color: rgba(232, 238, 247, 0.92);
}

.admin-login-brand-desc {
    margin: 0 0 28px;
    font-size: 15px;
    line-height: 1.7;
    color: rgba(232, 238, 247, 0.68);
}

.admin-login-brand-points {
    margin: 0;
    padding: 0;
    list-style: none;
}

.admin-login-brand-points li {
    position: relative;
    padding: 8px 0 8px 18px;
    font-size: 14px;
    color: rgba(232, 238, 247, 0.78);
}

.admin-login-brand-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 15px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #1fa7a0;
    box-shadow: 0 0 0 3px rgba(31, 167, 160, 0.2);
}

.admin-login-auth {
    flex: 0 0 460px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 48px 40px;
    padding-right: max(40px, env(safe-area-inset-right, 0px));
    background: #f5f7fa;
    opacity: 0;
    transform: translateY(12px);
    animation: admin-login-enter 0.65s ease forwards 0.18s;
    box-sizing: border-box;
}

.admin-login-card {
    width: 100%;
    max-width: 360px;
    padding: 36px 32px 28px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(11, 18, 32, 0.08);
    border: 1px solid rgba(11, 18, 32, 0.06);
    box-sizing: border-box;
}

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

.admin-login-card-title {
    margin: 0 0 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #0b1220;
}

.admin-login-card-sub {
    margin: 0;
    font-size: 13px;
    color: #6b7788;
}

.admin-login-field {
    margin-bottom: 18px;
}

.admin-login-label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #3a4556;
}

.admin-login-input-wrap .admin-login-input,
.admin-login-form .admin-login-input {
    height: 44px;
    width: 100%;
    border-radius: 10px;
    border: 1px solid #d7dde7;
    box-shadow: none;
    font-size: 14px;
    padding: 10px 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.admin-login-form .admin-login-input:focus {
    border-color: #1fa7a0;
    box-shadow: 0 0 0 3px rgba(31, 167, 160, 0.18);
}

.admin-login-captcha-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.admin-login-captcha-img {
    width: 148px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    cursor: pointer;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    flex-shrink: 0;
}

.admin-login-captcha-refresh {
    border: 0;
    background: transparent;
    color: #1fa7a0;
    font-size: 13px;
    font-weight: 600;
    padding: 8px 4px;
    min-height: 44px;
    cursor: pointer;
    flex-shrink: 0;
}

.admin-login-captcha-refresh:hover {
    text-decoration: underline;
}

.admin-login-submit {
    width: 100%;
    height: 48px;
    min-height: 48px;
    margin-top: 8px;
    border: 0;
    border-radius: 10px;
    background: linear-gradient(135deg, #1fa7a0 0%, #178f89 100%);
    color: #fff !important;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.12em;
    box-shadow: 0 10px 20px rgba(31, 167, 160, 0.28);
}

.admin-login-submit:hover,
.admin-login-submit:focus {
    background: linear-gradient(135deg, #23b5ad 0%, #1a9b94 100%);
    color: #fff !important;
}

.admin-login-methods {
    margin-top: 28px;
}

.admin-login-methods-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    color: #94a0b0;
    font-size: 12px;
}

.admin-login-methods-divider::before,
.admin-login-methods-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #e6ebf2;
}

.admin-login-methods-empty {
    margin: 0;
    text-align: center;
    font-size: 12px;
    color: #a0aab8;
}

.admin-login-methods-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.admin-login-method-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    min-height: 44px;
    border-radius: 999px;
    border: 1px solid #dce3ee;
    background: #fff;
    color: #3a4556;
    font-size: 13px;
    text-decoration: none;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.admin-login-method-btn:hover {
    border-color: #1fa7a0;
    color: #1fa7a0;
    text-decoration: none;
}

.admin-login-footer {
    margin: 24px 0 0;
    font-size: 12px;
    color: #9aa5b5;
}

@keyframes admin-login-enter {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes admin-login-glow {
    from {
        transform: translate(0, 0) scale(1);
        opacity: 0.85;
    }
    to {
        transform: translate(-24px, -18px) scale(1.08);
        opacity: 1;
    }
}

/* 平板竖屏 / 偏窄：上下堆叠 */
@media (max-width: 1023px) and (orientation: portrait),
       (max-width: 767px) {
    .admin-login-shell {
        flex-direction: column;
    }

    .admin-login-brand {
        flex: none;
    }

    .admin-login-auth {
        flex: 1 1 auto;
        width: 100%;
        padding: 28px 20px 40px;
        padding-left: max(20px, env(safe-area-inset-left, 0px));
        padding-right: max(20px, env(safe-area-inset-right, 0px));
    }

    .admin-login-card {
        max-width: 420px;
    }
}

/* 平板横屏：保持分栏，收紧左侧 */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: landscape) {
    .admin-login-shell {
        flex-direction: row;
    }

    .admin-login-brand {
        flex: 0 0 42%;
    }

    .admin-login-brand-inner {
        padding: 8vh 36px 36px;
        max-width: none;
    }

    .admin-login-brand-desc {
        font-size: 14px;
        margin-bottom: 16px;
    }

    .admin-login-brand-points li {
        font-size: 13px;
        padding: 6px 0 6px 16px;
    }

    .admin-login-auth {
        flex: 1 1 auto;
        padding: 32px 28px;
    }

    .admin-login-card {
        max-width: 380px;
    }
}

/* 平板竖屏：品牌区中等高度 */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: portrait) {
    .admin-login-brand {
        min-height: 180px;
    }

    .admin-login-brand-inner {
        padding: 28px 32px 24px;
        max-width: none;
    }

    .admin-login-brand-eyebrow {
        margin-bottom: 10px;
    }

    .admin-login-brand-name {
        margin-bottom: 8px;
        font-size: 1.75rem;
    }

    .admin-login-brand-headline {
        margin-bottom: 0;
        font-size: 1rem;
    }

    .admin-login-brand-desc,
    .admin-login-brand-points {
        display: none;
    }
}

/* 手机：压缩品牌区 + 表单触控优化 */
@media (max-width: 767px) {
    .admin-login-brand {
        min-height: 120px;
    }

    .admin-login-brand-glow {
        width: 220px;
        height: 220px;
        right: -80px;
        bottom: -60px;
    }

    .admin-login-brand-inner {
        padding: 28px 20px 20px;
        padding-top: max(28px, env(safe-area-inset-top, 0px));
        max-width: none;
    }

    .admin-login-brand-eyebrow,
    .admin-login-brand-desc,
    .admin-login-brand-points {
        display: none;
    }

    .admin-login-brand-name {
        margin: 0 0 6px;
        font-size: 1.5rem;
    }

    .admin-login-brand-headline {
        margin: 0;
        font-size: 0.95rem;
        color: rgba(232, 238, 247, 0.75);
    }

    .admin-login-auth {
        justify-content: flex-start;
        padding-top: 20px;
        padding-bottom: max(28px, env(safe-area-inset-bottom, 0px));
    }

    .admin-login-card {
        max-width: none;
        padding: 24px 18px 20px;
        border-radius: 14px;
    }

    .admin-login-card-head {
        margin-bottom: 20px;
    }

    .admin-login-card-title {
        font-size: 1.35rem;
    }

    /* 防 iOS 输入框自动放大 */
    .admin-login-input-wrap .admin-login-input,
    .admin-login-form .admin-login-input {
        font-size: 16px;
        height: 48px;
    }

    .admin-login-captcha-row {
        flex-wrap: wrap;
        margin-bottom: 12px;
    }

    .admin-login-captcha-img {
        flex: 1 1 auto;
        width: auto;
        min-width: 140px;
        max-width: 100%;
        height: 48px;
    }

    .admin-login-captcha-refresh {
        margin-left: auto;
    }

    .admin-login-submit {
        height: 50px;
        min-height: 50px;
        font-size: 16px;
    }

    .admin-login-methods {
        margin-top: 22px;
    }

    .admin-login-footer {
        margin-top: 18px;
    }
}

/* 超窄屏 */
@media (max-width: 380px) {
    .admin-login-brand {
        min-height: 108px;
    }

    .admin-login-brand-name {
        font-size: 1.35rem;
    }

    .admin-login-card {
        padding: 20px 14px 16px;
    }
}