/* Standalone account page; keep the shared modal and authentication markup intact. */
body.user-sign-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100svh;
    background: var(--main-bg-color);
}

body.user-sign-page.sign-no-header {
    padding-top: 0;
}

.user-sign-page .sign-page {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    width: 100%;
    margin: 0;
}

.user-sign-page .sign-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
    min-height: 640px;
    padding: clamp(28px, 4.5vw, 72px);
    overflow: hidden;
    isolation: isolate;
    background: #202321;
    color: #fff;
}

.user-sign-page .sign-visual-image,
.user-sign-page .sign-visual::after {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.user-sign-page .sign-visual-image {
    object-fit: cover;
    object-position: 62% center;
}

/* 默认图为竖版人像，裁切时保住面部与上半身 */
.user-sign-page .sign-visual-image-default {
    object-position: center 18%;
}

/*
 * 叠加层只用静态渐变（不用 blur/backdrop-filter/blend-mode），几乎零渲染成本：
 * 1. 右侧边缘渐变到表单面板底色，让图片自然溶入面板而不是硬切；
 * 2. 上下压暗，保证品牌名与文案可读；
 * 3. 一层暗玫红色调，把照片色彩统一到站点主色，降低突兀感。
 */
.user-sign-page .sign-visual::after {
    content: "";
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0) 68%, var(--main-bg-color) 100%),
        linear-gradient(180deg, rgba(22, 10, 24, .55), rgba(22, 10, 24, .08) 40%, rgba(22, 10, 24, .86)),
        linear-gradient(160deg, rgba(70, 20, 56, .38), rgba(150, 45, 90, .16) 55%, rgba(24, 8, 22, .42));
}

.user-sign-page .sign-position-left .sign-visual::after {
    background:
        linear-gradient(270deg, rgba(0, 0, 0, 0) 68%, var(--main-bg-color) 100%),
        linear-gradient(180deg, rgba(22, 10, 24, .55), rgba(22, 10, 24, .08) 40%, rgba(22, 10, 24, .86)),
        linear-gradient(200deg, rgba(70, 20, 56, .38), rgba(150, 45, 90, .16) 55%, rgba(24, 8, 22, .42));
}

/* 居中卡片模式下图片铺满全屏，不需要边缘溶入，只保留压暗与色调 */
.user-sign-page .sign-position-center .sign-visual::after {
    background:
        linear-gradient(180deg, rgba(22, 10, 24, .5), rgba(22, 10, 24, .35) 50%, rgba(22, 10, 24, .8)),
        linear-gradient(160deg, rgba(70, 20, 56, .4), rgba(150, 45, 90, .18) 55%, rgba(24, 8, 22, .45));
}

.user-sign-page .sign-brand {
    color: #fff;
    font-size: clamp(22px, 2.5vw, 36px);
    font-weight: 600;
    line-height: 1.3;
    overflow-wrap: anywhere;
    text-shadow: 0 2px 18px rgba(0, 0, 0, .25);
}

.user-sign-page .sign-story {
    margin-top: 140px;
    max-width: 440px;
    animation: sign-page-enter .6s ease-out both;
}

.user-sign-page .sign-story h1 {
    margin: 0 0 16px;
    color: #fff;
    font-size: clamp(24px, 2.7vw, 38px);
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: .02em;
}

.user-sign-page .sign-story p {
    margin: 0;
    color: rgba(255, 255, 255, .8);
    font-size: 15px;
    line-height: 1.9;
}

.user-sign-page .sign-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    padding: 48px clamp(24px, 5vw, 80px);
    background: var(--main-bg-color);
}

.user-sign-page .sign-panel-inner {
    width: 100%;
    max-width: 400px;
    margin: auto;
    animation: sign-page-enter .5s .08s ease-out both;
}

.user-sign-page .sign-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    margin-bottom: 26px;
    color: var(--muted-color);
    font-size: 13px;
    transition: color .18s ease;
}

.user-sign-page .sign-back:hover {
    color: var(--focus-color);
}

.user-sign-page .sign {
    width: 100%;
    margin: 0;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}

.user-sign-page .sign [data-dismiss="modal"] {
    display: none;
}

.user-sign-page .sign .box-body {
    padding: 18px 0;
}

.user-sign-page .sign .box-body.notop {
    padding-top: 0;
}

.user-sign-page .sign .sign-logo {
    padding-top: 0;
    padding-bottom: 24px;
}

.user-sign-page .sign .title-h-left {
    margin-bottom: 12px;
    padding-left: 0;
    font-size: 30px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--key-color);
}

.user-sign-page .sign .title-h-left::before {
    display: none;
}

.user-sign-page .sign .line-form {
    margin-bottom: 18px;
}

.user-sign-page .sign .line-form-input {
    min-height: 38px;
    padding-bottom: 10px;
    font-size: 16px;
    opacity: 1;
}

.user-sign-page .sign .scale-placeholder {
    bottom: 11px;
    opacity: .8;
}

.user-sign-page .sign .line-form-line {
    background: var(--muted-3-color);
}

.user-sign-page .sign .signsubmit-loader,
.user-sign-page .sign .invit-code-verify {
    min-height: 48px;
    border-radius: 8px;
    background: var(--focus-color);
    color: #fff;
    font-size: 15px;
    transition: filter .18s ease, transform .18s ease;
}

.user-sign-page .sign .signsubmit-loader:hover,
.user-sign-page .sign .invit-code-verify:hover {
    filter: brightness(.94);
    transform: translateY(-1px);
}

.user-sign-page .sign .signsubmit-loader:active {
    transform: translateY(0);
}

.user-sign-page .sign a:focus-visible,
.user-sign-page .sign button:focus-visible,
.user-sign-page .sign-back:focus-visible,
.user-sign-page .sign-brand:focus-visible {
    outline: 2px solid var(--focus-color);
    outline-offset: 4px;
}

.user-sign-page .oauth-data-box .avatar-img {
    --this-size: 60px;
}

.user-sign-page .sign-page-footer {
    padding: 16px 24px;
    background: var(--main-bg-color);
    color: var(--muted-color);
    font-size: 12px;
    text-align: center;
    overflow-wrap: anywhere;
}

.user-sign-page .sign-position-left .sign-visual {
    order: 2;
}

.user-sign-page .sign-position-center {
    position: relative;
    display: flex;
    justify-content: center;
    padding: 48px 24px;
    isolation: isolate;
}

.user-sign-page .sign-position-center .sign-visual {
    position: absolute;
    inset: 0;
    min-height: 0;
    z-index: -1;
}

.user-sign-page .sign-position-center .sign-visual > a,
.user-sign-page .sign-position-center .sign-story {
    display: none;
}

.user-sign-page .sign-position-center .sign-panel {
    width: 480px;
    max-width: 100%;
    padding: 32px 40px;
    border-radius: 12px;
}

.user-sign-page .sign-interim .sign-visual {
    display: none;
}

.user-sign-page .sign-interim {
    display: flex;
    justify-content: center;
}

.user-sign-page .sign-interim .sign-panel {
    width: 480px;
    max-width: 100%;
    padding: 24px;
}

@keyframes sign-page-enter {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 991px) {
    .user-sign-page .sign-page {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .user-sign-page .sign-panel {
        padding: 32px 28px;
    }
}

@media (max-width: 767px) {
    .user-sign-page .sign-page {
        display: flex;
        flex-direction: column;
    }

    .user-sign-page .sign-visual,
    .user-sign-page .sign-position-left .sign-visual {
        order: 0;
        min-height: 180px;
        padding: 24px;
    }

    .user-sign-page .sign-visual-image {
        object-position: center 44%;
    }

    .user-sign-page .sign-visual-image-default {
        object-position: center 6%;
    }

    /* 移动端图片是顶部横幅，文案压在底部，去掉边缘溶入只保留压暗与色调 */
    .user-sign-page .sign-visual::after,
    .user-sign-page .sign-position-left .sign-visual::after {
        background:
            linear-gradient(180deg, rgba(22, 10, 24, .45), rgba(22, 10, 24, .15) 45%, rgba(22, 10, 24, .82)),
            linear-gradient(160deg, rgba(70, 20, 56, .38), rgba(150, 45, 90, .16) 55%, rgba(24, 8, 22, .42));
    }

    .user-sign-page .sign-brand {
        font-size: 23px;
    }

    .user-sign-page .sign-story {
        margin-top: 28px;
    }

    .user-sign-page .sign-story h1 {
        margin-bottom: 0;
        font-size: 20px;
    }

    .user-sign-page .sign-story p {
        display: none;
    }

    .user-sign-page .sign-panel {
        flex: 1;
        justify-content: flex-start;
        padding: 20px 24px 36px;
    }

    .user-sign-page .sign-panel-inner {
        margin: 0 auto;
    }

    .user-sign-page .sign-back {
        margin-bottom: 4px;
    }

    .user-sign-page .sign .title-h-left {
        font-size: 26px;
    }

    .user-sign-page .sign-position-center {
        align-items: center;
        padding: 24px 16px;
    }

    .user-sign-page .sign-position-center .sign-panel {
        flex: 0;
        padding: 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .user-sign-page .sign-story,
    .user-sign-page .sign-panel-inner {
        animation: none;
    }

    .user-sign-page .sign .signsubmit-loader,
    .user-sign-page .sign .invit-code-verify,
    .user-sign-page .sign-back {
        transition: none;
        transform: none;
    }
}