/* 兴展项目管理 · 登录页 */
body:has(.xz-login) {
    margin: 0;
    background: #fff;
    overflow-x: hidden;
}

.xz-login {
    --xz-ink: #152028;
    --xz-muted: #6a7583;
    --xz-line: #e4e8ee;
    --xz-paper: #ffffff;
    --xz-wash: #f3f6f8;
    --xz-accent: #1f9e91;
    --xz-accent-deep: #157f75;
    --xz-brand: #0b3a36;
    --xz-brand-mid: #12524c;
    --xz-danger: #d64545;
    --xz-ok: #2f9e6a;

    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    min-height: 100vh;
    margin: 0;
    background: var(--xz-paper);
    color: var(--xz-ink);
    font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    overflow: hidden;
}

/* —— 左侧品牌区 —— */
.xz-login__brand {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(2rem, 5vw, 3.5rem);
    background:
        radial-gradient(120% 80% at 0% 0%, rgba(47, 184, 168, 0.28), transparent 55%),
        radial-gradient(90% 70% at 100% 100%, rgba(18, 90, 110, 0.45), transparent 50%),
        linear-gradient(155deg, var(--xz-brand) 0%, var(--xz-brand-mid) 48%, #0e4d55 100%);
    color: #f4faf9;
    overflow: hidden;
}

.xz-login__atmosphere {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.xz-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%);
    opacity: 0.9;
}

.xz-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(2px);
    animation: xz-float 12s ease-in-out infinite;
}

.xz-orb--a {
    width: 220px;
    height: 220px;
    top: 12%;
    right: -40px;
    background: rgba(51, 202, 187, 0.22);
}

.xz-orb--b {
    width: 140px;
    height: 140px;
    bottom: 18%;
    left: 8%;
    background: rgba(255, 255, 255, 0.08);
    animation-delay: -4s;
    animation-duration: 15s;
}

.xz-orb--c {
    width: 80px;
    height: 80px;
    top: 42%;
    left: 42%;
    background: rgba(120, 210, 200, 0.18);
    animation-delay: -7s;
    animation-duration: 10s;
}

@keyframes xz-float {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(0, -18px, 0); }
}

.xz-login__brand-inner {
    position: relative;
    z-index: 1;
    max-width: 28rem;
    margin-top: auto;
    margin-bottom: auto;
    animation: xz-rise 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.xz-login__mark {
    margin: 0 0 1rem;
    font-size: 1rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(244, 250, 249, 0.62);
}

.xz-login__name {
    margin: 0;
    font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
    font-size: clamp(2.4rem, 4.2vw, 3.4rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.04em;
    color: #fff;
}

.xz-login__tagline {
    margin: 1.25rem 0 0;
    max-width: 22rem;
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(244, 250, 249, 0.78);
}

.xz-login__brand-foot {
    position: relative;
    z-index: 1;
    margin: 0;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    color: rgba(244, 250, 249, 0.45);
}

/* —— 右侧表单区 —— */
.xz-login__panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.5rem, 4vw, 3rem);
    background:
        linear-gradient(180deg, #fbfcfd 0%, var(--xz-wash) 100%);
}

.xz-login__form-wrap {
    width: 100%;
    max-width: 380px;
    animation: xz-rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.12s both;
}

@keyframes xz-rise {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.xz-login__intro {
    margin-bottom: 1.75rem;
}

.xz-login__intro h2 {
    margin: 0;
    font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
    font-weight: 700;
    color: var(--xz-ink);
    letter-spacing: 0.02em;
}

.xz-login__intro p {
    margin: 0.45rem 0 0;
    color: var(--xz-muted);
    font-size: 1.5rem;
}

.xz-login__alert {
    margin-bottom: 1rem;
    padding: 0.75rem 0.9rem;
    border-radius: 6px;
    border: 1px solid rgba(214, 69, 69, 0.25);
    background: rgba(214, 69, 69, 0.08);
    color: var(--xz-danger);
    font-size: 0.875rem;
    line-height: 1.5;
}

.xz-login__alert--success {
    border-color: rgba(47, 158, 106, 0.25);
    background: rgba(47, 158, 106, 0.08);
    color: var(--xz-ok);
}

.xz-login__alert--info {
    border-color: rgba(31, 158, 145, 0.25);
    background: rgba(31, 158, 145, 0.08);
    color: var(--xz-accent-deep);
}

.xz-field {
    margin-bottom: 1.15rem;
}

.xz-field label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 1.2rem;
    font-weight: 500;
    color: #3d4654;
}

.xz-field__control {
    position: relative;
}

.xz-field__control i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.15rem;
    color: #9aa3af;
    pointer-events: none;
    transition: color 0.2s ease;
}

.xz-field__control input {
    display: block;
    width: 100%;
    height: 46px;
    padding: 0 14px 0 40px;
    border: 1px solid var(--xz-line);
    border-radius: 8px;
    background: var(--xz-paper);
    color: var(--xz-ink);
    font-size: 1.2rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.xz-field__control input::placeholder {
    color: #a7b0bc;
}

.xz-field__control input:hover {
    border-color: #c8d0da;
}

.xz-field__control input:focus {
    border-color: var(--xz-accent);
    box-shadow: 0 0 0 3px rgba(31, 158, 145, 0.16);
}

.xz-field__control:focus-within i {
    color: var(--xz-accent);
}

.xz-field.is-invalid .xz-field__control input {
    border-color: var(--xz-danger);
}

.xz-field__error {
    display: block;
    margin-top: 0.35rem;
    color: var(--xz-danger);
    font-size: 0.8rem;
}

.xz-login__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0.25rem 0 1.35rem;
}

.xz-check {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin: 0;
    font-weight: 400;
    font-size: 1rem;
    color: var(--xz-muted);
    cursor: pointer;
    user-select: none;
}

.xz-check input {
    width: 15px;
    height: 15px;
    margin: 0;
    accent-color: var(--xz-accent);
    cursor: pointer;
}

.xz-login__submit {
    display: block;
    width: 100%;
    height: 46px;
    border: 0;
    border-radius: 8px;
    background: linear-gradient(180deg, #27b3a5 0%, var(--xz-accent) 100%);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-indent: 0.2em;
    cursor: pointer;
    transition: transform 0.18s ease, background 0.2s ease, filter 0.2s ease;
}

.xz-login__submit:hover {
    background: linear-gradient(180deg, #2fc0b1 0%, var(--xz-accent-deep) 100%);
    filter: brightness(1.02);
}

.xz-login__submit:active {
    transform: translateY(1px) scale(0.995);
}

.xz-login__submit:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(31, 158, 145, 0.22);
}

.xz-login__copy {
    margin-top: 2rem;
    text-align: center;
    font-size: 1rem;
    color: #97a1ae;
}

/* —— 响应式 —— */
@media (max-width: 900px) {
    .xz-login {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .xz-login__brand {
        min-height: 220px;
        padding: 1.75rem 1.5rem 1.5rem;
        justify-content: flex-end;
    }

    .xz-login__brand-inner {
        margin: 0;
    }

    .xz-login__name {
        font-size: clamp(1.85rem, 8vw, 2.4rem);
    }

    .xz-login__tagline {
        margin-top: 0.65rem;
        font-size: 0.9rem;
    }

    .xz-login__brand-foot {
        display: none;
    }

    .xz-orb--a {
        width: 140px;
        height: 140px;
    }

    .xz-login__panel {
        align-items: flex-start;
        padding-top: 2rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .xz-orb,
    .xz-login__brand-inner,
    .xz-login__form-wrap {
        animation: none !important;
    }
}