/* ============================================
   auth.css — 登录 / 注册（滕达智能版）
   类名前缀：.zh_au_*
   布局：banner.jpg 整页背景 + 蓝青蒙板 + 居中浮动白卡
   ============================================ */

.zh_au_wrap {
    position: relative;
    min-height: calc(100vh - 240px);
    padding: 64px 20px 80px;
    background-color: var(--zh-bg);
    background-image: url('/uploads/banner/banner.jpg');
    background-size: cover;
    background-position: right center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 蓝青渐变蒙板（覆盖整个背景） */
.zh_au_wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(30, 95, 217, 0.92) 0%,
        rgba(30, 95, 217, 0.78) 38%,
        rgba(46, 189, 184, 0.62) 100%);
    z-index: 0;
}

/* 装饰光晕 */
.zh_au_wrap::after {
    content: '';
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.16) 0%, transparent 65%);
    top: -100px;
    right: -100px;
    z-index: 0;
    pointer-events: none;
}

/* ============================================
   居中浮动卡片
   ============================================ */
.zh_au_card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 460px;
    background: #fff;
    border-radius: 20px;
    padding: 44px 44px 36px;
    box-shadow: 0 30px 60px rgba(13, 27, 54, 0.25);
}

/* 卡片顶部细装饰条 */
.zh_au_card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 28px;
    right: 28px;
    height: 4px;
    background: var(--zh-grad-primary);
    border-radius: 0 0 4px 4px;
}

/* Logo 区 */
.zh_au_logo {
    display: flex;
    justify-content: center;
    margin-bottom: 22px;
}

.zh_au_logo img {
    height: 44px;
    width: auto;
    display: block;
}

/* 标题区 */
.zh_au_head {
    text-align: center;
    margin-bottom: 26px;
}

.zh_au_head_eyebrow {
    display: inline-block;
    font-size: 11px;
    color: var(--zh-primary);
    background: var(--zh-primary-tint);
    font-weight: 700;
    letter-spacing: 4px;
    padding: 4px 14px;
    border-radius: 99px;
    margin-bottom: 12px;
}

.zh_au_head h1 {
    font-size: 26px;
    font-weight: 800;
    color: var(--zh-text);
    margin: 0 0 8px;
    line-height: 1.3;
    letter-spacing: 0.5px;
}

.zh_au_head p {
    font-size: 13px;
    color: var(--zh-text-2);
    margin: 0;
    line-height: 1.6;
}

/* 提示条 */
.zh_au_alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border-radius: var(--zh-radius);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 18px;
}

.zh_au_alert > i {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.zh_au_alert_err {
    background: #fef0f3;
    color: #b32a44;
    border-left: 3px solid var(--zh-accent);
}

.zh_au_alert_ok {
    background: #e1f6f4;
    color: #1c6b62;
    border-left: 3px solid var(--zh-cyan);
}

/* 表单 */
.zh_au_form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.zh_au_row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.zh_au_field { display: flex; flex-direction: column; gap: 6px; }

.zh_au_label {
    font-size: 12.5px;
    color: var(--zh-text-2);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.zh_au_input_wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.zh_au_input_icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--zh-text-3);
    font-size: 14px;
    pointer-events: none;
    z-index: 1;
    transition: color 0.2s;
}

.zh_au_input {
    width: 100%;
    height: 48px;
    padding: 0 14px 0 44px;
    border: 1.5px solid var(--zh-line);
    border-radius: var(--zh-radius);
    background: var(--zh-bg);
    font-size: 14px;
    color: var(--zh-text);
    outline: none;
    transition: all 0.2s;
    font-family: inherit;
}

.zh_au_input:focus {
    border-color: var(--zh-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(30, 95, 217, 0.12);
}

.zh_au_input_wrap:focus-within .zh_au_input_icon {
    color: var(--zh-primary);
}

.zh_au_input::placeholder { color: var(--zh-text-3); }

/* 验证码 */
.zh_au_captcha {
    display: flex;
    gap: 10px;
    align-items: stretch;
}

.zh_au_captcha_img {
    height: 48px;
    border-radius: var(--zh-radius);
    border: 1.5px solid var(--zh-line);
    cursor: pointer;
    flex-shrink: 0;
    background: #fff;
}

/* 提示文字 */
.zh_au_hint {
    font-size: 11.5px;
    color: var(--zh-text-3);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.zh_au_hint i { color: var(--zh-primary); }

/* 记住 / 忘记密码 */
.zh_au_meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 4px 0 4px;
    font-size: 12.5px;
}

.zh_au_remember {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    color: var(--zh-text-2);
}

.zh_au_remember input {
    width: 14px;
    height: 14px;
    accent-color: var(--zh-primary);
    cursor: pointer;
}

.zh_au_forgot {
    color: var(--zh-primary);
    transition: color 0.2s;
    font-weight: 500;
}

.zh_au_forgot:hover { color: var(--zh-primary-deep); }

/* 协议同意 */
.zh_au_agree {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12.5px;
    color: var(--zh-text-2);
    line-height: 1.6;
    padding: 4px 0;
}

.zh_au_agree input {
    margin-top: 3px;
    accent-color: var(--zh-primary);
    cursor: pointer;
    flex-shrink: 0;
}

.zh_au_agree a {
    color: var(--zh-primary);
    font-weight: 500;
}

.zh_au_agree a:hover { color: var(--zh-primary-deep); }

/* 提交按钮 */
.zh_au_submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 20px;
    margin-top: 8px;
    background: var(--zh-grad-primary);
    color: #fff;
    border: none;
    border-radius: var(--zh-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: var(--zh-shadow-hover);
    letter-spacing: 1px;
}

.zh_au_submit:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 18px 32px rgba(30, 95, 217, 0.32);
}

.zh_au_submit:disabled,
.zh_au_submit.is_loading {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    filter: none;
    box-shadow: var(--zh-shadow-sm);
    pointer-events: none;
}

/* 分割线 */
.zh_au_divider {
    position: relative;
    text-align: center;
    margin: 22px 0 6px;
}

.zh_au_divider::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: var(--zh-line);
}

.zh_au_divider span {
    position: relative;
    padding: 0 14px;
    background: #fff;
    font-size: 11px;
    color: var(--zh-text-3);
    letter-spacing: 3px;
}

/* 切换登录 / 注册 */
.zh_au_alt {
    text-align: center;
    font-size: 13px;
    color: var(--zh-text-2);
}

.zh_au_alt a {
    color: var(--zh-primary);
    font-weight: 600;
    margin-left: 4px;
    transition: color 0.2s;
}

.zh_au_alt a:hover { color: var(--zh-primary-deep); }

/* ============================================
   卡片下方的小信任标识条
   ============================================ */
.zh_au_trust {
    position: relative;
    z-index: 1;
    max-width: 460px;
    margin: 22px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 12.5px;
    flex-wrap: wrap;
}

.zh_au_trust span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.zh_au_trust i { color: rgba(255, 255, 255, 0.92); font-size: 13px; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 767px) {
    .zh_au_wrap {
        padding: 32px 16px 48px;
        min-height: calc(100vh - 180px);
    }
    .zh_au_card {
        padding: 32px 24px 28px;
        border-radius: 16px;
    }
    .zh_au_logo img { height: 38px; }
    .zh_au_head h1 { font-size: 22px; }
    .zh_au_row { grid-template-columns: 1fr; gap: 14px; }
    .zh_au_input { height: 44px; font-size: 13.5px; }
    .zh_au_submit { padding: 13px 18px; font-size: 14px; }
    .zh_au_trust { gap: 16px; font-size: 11.5px; }
}