/* 去投后台登录页 */
html, body { height: 100%; margin: 0; }
body.qtou-login {
    min-height: 100vh;
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 45%, #0f3460 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    box-sizing: border-box;
}
.qtou-login-wrap {
    width: 100%;
    max-width: 980px;
    display: flex;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
    background: #fff;
}
.qtou-login-brand {
    flex: 1;
    padding: 56px 48px;
    background: linear-gradient(145deg, #ff6b8a 0%, #ff4d6a 55%, #e84362 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.qtou-login-brand .brand-logo {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 28px;
}
.qtou-login-brand h1 {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 12px;
    letter-spacing: 2px;
}
.qtou-login-brand .brand-desc {
    font-size: 15px;
    line-height: 1.8;
    opacity: 0.92;
    margin-bottom: 32px;
}
.qtou-login-brand .brand-features {
    list-style: none;
    padding: 0;
    margin: 0;
}
.qtou-login-brand .brand-features li {
    padding: 10px 0;
    font-size: 14px;
    opacity: 0.95;
}
.qtou-login-brand .brand-features li i {
    width: 22px;
    margin-right: 10px;
}
.qtou-login-panel {
    flex: 1;
    padding: 56px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.qtou-login-panel h2 {
    font-size: 26px;
    font-weight: 700;
    color: #222;
    margin: 0 0 8px;
}
.qtou-login-panel .panel-sub {
    color: #999;
    font-size: 14px;
    margin-bottom: 32px;
}
.qtou-field {
    position: relative;
    margin-bottom: 20px;
}
.qtou-field i.fa {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #bbb;
    font-size: 16px;
    z-index: 1;
}
.qtou-field .form-control {
    height: 48px !important;
    padding-left: 44px !important;
    border: 1px solid #e8e8e8 !important;
    border-radius: 10px !important;
    font-size: 14px;
    transition: border-color .2s, box-shadow .2s;
    box-shadow: none !important;
}
.qtou-field .form-control:focus {
    border-color: #ff4d6a !important;
    box-shadow: 0 0 0 3px rgba(255,77,106,0.12) !important;
}
.qtou-captcha-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}
.qtou-captcha-row .form-control {
    flex: 1;
    height: 48px !important;
    border: 1px solid #e8e8e8 !important;
    border-radius: 10px !important;
}
.qtou-captcha-row .imgcode {
    height: 48px;
    border-radius: 10px;
    border: 1px solid #e8e8e8;
    cursor: pointer;
}
.qtou-login-extra {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 13px;
    color: #666;
}
.qtou-login-extra .checkbox-custom { margin-bottom: 0; padding-left: 25px; }
.qtou-login-extra a { color: #ff4d6a; }
.btn-qtou-login {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #ff6b8a, #ff4d6a);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    transition: opacity .2s, transform .1s;
}
.btn-qtou-login:hover, .btn-qtou-login:focus {
    color: #fff;
    opacity: 0.92;
}
.btn-qtou-login:active { transform: scale(0.98); }
.qtou-login-footer {
    text-align: center;
    margin-top: 48px;
    color: rgba(255,255,255,0.45);
    font-size: 12px;
}
label.error { position: inherit; color: #ff4d6a; font-size: 12px; margin-top: 4px; display: block; }
@media screen and (max-width: 768px) {
    .qtou-login-wrap { flex-direction: column; max-width: 420px; }
    .qtou-login-brand { padding: 36px 28px; }
    .qtou-login-brand .brand-features { display: none; }
    .qtou-login-panel { padding: 36px 28px; }
}