/* ==========================================================================
   简约高级主题 — Roundcube Elastic skin
   干净留白 / 极淡边框 / 精致圆角 / 克制阴影 / 单一强调色
   强调色 #0B57D0
   ========================================================================== */

:root {
    --oc-bg: #FFFFFF;
    --oc-pane-bg: #F8FAFC;
    --oc-hover: #F1F5F9;
    --oc-border: #E2E8F0;
    --oc-border-strong: #CBD5E1;
    --oc-text: #0F172A;
    --oc-text-secondary: #64748B;
    --oc-text-tertiary: #94A3B8;
    --oc-white: #FFFFFF;
    --oc-primary: #0F172A;
    --oc-primary-hover: #1E293B;
    --oc-primary-active: #0B1120;
    --oc-primary-light: #F1F5F9;
    --oc-danger: #D93025;
    --oc-radius: 10px;
    --oc-shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
    --oc-shadow-md: 0 4px 12px rgba(16, 24, 40, .08);
    --oc-shadow-lg: 0 12px 32px rgba(16, 24, 40, .12);
}

/* ---------- 全局 ---------- */

html {
    font-size: 14px;
}

body,
button,
input,
optgroup,
select,
textarea,
.popover {
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, #F6F9FC, #E4EDF7) fixed;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    color: var(--oc-text);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}=================================================
   简约高级主题 — Roundcube Elastic skin
   干净留白 / 极淡边框 / 精致圆角 / 克制阴影 / 单一强调色
   强调色 #0B57D0
   ========================================================================== */

:root {
    --oc-bg: #FFFFFF;
    --oc-pane-bg: #F8FAFC;
    --oc-hover: #F1F5F9;
    --oc-border: #E2E8F0;
    --oc-border-strong: #CBD5E1;
    --oc-text: #0F172A;
    --oc-text-secondary: #64748B;
    --oc-text-tertiary: #94A3B8;
    --oc-white: #FFFFFF;
    --oc-primary: #0F172A;
    --oc-primary-hover: #1E293B;
    --oc-primary-active: #0B1120;
    --oc-primary-light: #F1F5F9;
    --oc-danger: #D93025;
    --oc-radius: 10px;
    --oc-shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
    --oc-shadow-md: 0 4px 12px rgba(16, 24, 40, .08);
    --oc-shadow-lg: 0 12px 32px rgba(16, 24, 40, .12);
}

/* ---------- 全局 ---------- */

html {
    font-size: 14px;
}

body,
button,
input,
optgroup,
select,
textarea,
.popover {
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}



a {
    color: var(--oc-primary);
}

a:hover {
    color: var(--oc-primary-hover);
}

::selection {
    background: var(--oc-primary-light);
}

/* ---------- 滚动条 ---------- */

::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-thumb {
    background: #C9CDD4;
    border-radius: 8px;
    border: 3px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background: #AEB3BC;
    background-clip: content-box;
}

::-webkit-scrollbar-track {
    background: transparent;
}

/* ==========================================================================
   布局框架
   ========================================================================== */

#layout {
    background: transparent;
}

#layout-sidebar,
#layout-list {
    border-right: 1px solid var(--oc-border);
}

#layout > div > .header {
    background-color: var(--oc-white);
    border-bottom: 1px solid var(--oc-border);
    color: var(--oc-text);
    font-weight: 600;
}

#layout > div > .footer {
    background-color: var(--oc-white);
    border-top: 1px solid var(--oc-border);
}

#layout > div > .header a.button {
    color: var(--oc-text-secondary);
    transition: color .15s ease, background .15s ease;
}

#layout > div > .header a.button:hover {
    color: var(--oc-text);
    background: var(--oc-hover);
}

#layout > div > .header {
    justify-content: flex-start;
}

/* 标题居中（刷新在左、注销在右） */
#layout-list > .header .header-title {
    display: block !important;
    flex: 1;
    text-align: center;
    margin: 0 !important;
    padding: 0 .5rem;
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: .1px;
    color: var(--oc-text);
}

/* 阅读窗格标题左对齐 */
#layout-content > .header .header-title {
    flex: 1;
    text-align: left;
    margin: 0;
    padding: 0 .25rem 0 .5rem;
    font-weight: 600;
    color: var(--oc-text);
}

/* ==========================================================================
   两栏布局（已去掉侧栏）
   ========================================================================== */

#layout-list {
    flex: 1.5;
    max-width: 34%;
    min-width: 300px;
}

#layout-content {
    flex: 3;
}

/* ==========================================================================
   邮件列表
   ========================================================================== */

#layout-list {
    background: var(--oc-white);
}

#layout-list > .header {
    background: var(--oc-white);
}

/* 邮件行：留白 + 极淡分隔 */
.messagelist tr td {
    border-bottom: 1px solid var(--oc-hover);
    transition: background .12s ease;
    padding-top: 10px;
    padding-bottom: 10px;
}

.messagelist tbody tr:hover td {
    background: var(--oc-hover);
}

.messagelist tr.selected td {
    background: var(--oc-primary-light) !important;
}

/* 主题单元格两行式 */
.messagelist td.subject {
    display: flex !important;
    flex-wrap: wrap;
    align-items: center;
    padding-left: 16px;
    padding-right: 12px;
}

.messagelist td.subject span.msgicon.status {
    order: 1;
}

.messagelist td.subject span.fromto {
    order: 2;
    flex: 1;
    min-width: 0;
    color: #000000;
    font-size: .92rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.messagelist td.subject span.date {
    order: 3;
    color: #000000;
    font-size: .78rem;
    white-space: nowrap;
    padding-left: .5rem;
}

.messagelist td.subject span.subject {
    order: 4;
    width: 100%;
    color: #000000;
    font-size: .88rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding-top: 1px;
}

.messagelist td.subject span.subject a {
    color: inherit;
}

/* 未读：左侧蓝条 + 加粗深色 */
.messagelist tr.unread td.subject {
    box-shadow: inset 3px 0 0 var(--oc-primary);
}

.messagelist tr.unread td.subject span.fromto {
    color: var(--oc-text);
    font-weight: 600;
}

.messagelist tr.unread td.subject span.subject {
    font-weight: 600;
    color: var(--oc-text);
}

.messagelist td.subject span.msgicon.status.unread:before {
    color: var(--oc-primary) !important;
    font-size: .5rem;
}

.messagelist td.subject span.msgicon.status.replied:before,
.messagelist td.subject span.msgicon.status.forwarded:before {
    color: var(--oc-text-tertiary);
}

.messagelist td.flags span.flag {
    display: none;
}

.listing-info {
    color: var(--oc-text-secondary);
}

/* ==========================================================================
   阅读窗格
   ========================================================================== */

#layout-content {
    background: var(--oc-white);
}

#layout-content > .header {
    background: var(--oc-white);
    border-bottom: 1px solid var(--oc-border);
}

/* ==========================================================================
   按钮
   ========================================================================== */

.btn,
button.btn,
a.button {
    border-radius: var(--oc-radius);
    transition: background .15s ease, border-color .15s ease, box-shadow .15s ease;
}

.btn-primary,
button.btn-primary,
button.mainaction {
    background: var(--oc-primary) !important;
    border-color: var(--oc-primary) !important;
    color: #fff !important;
}

.btn-primary:hover,
button.btn-primary:hover,
button.mainaction:hover {
    background: var(--oc-primary-hover) !important;
    border-color: var(--oc-primary-hover) !important;
}

.btn-primary:active,
button.btn-primary:active {
    background: var(--oc-primary-active) !important;
}

.btn-secondary {
    background: #fff !important;
    border-color: var(--oc-border-strong) !important;
    color: var(--oc-text) !important;
}

.btn-secondary:hover {
    background: var(--oc-hover) !important;
}

.menu.toolbar a:hover {
    background-color: var(--oc-hover);
    border-radius: var(--oc-radius);
}

/* 顶栏图标按钮（刷新/注销） */
.toolbar-button {
    color: #000000 !important;
    border-radius: var(--oc-radius);
    transition: background .15s ease;
}

.toolbar-button:hover {
    background: var(--oc-hover);
}

/* 注销图标 */
.toolbar-button.logout:before {
    content: "\f011";
}

/* 注销推到最右 */
#layout-list > .header .toolbar-button.logout {
    margin-left: auto;
}
.toolbar-button.refresh:before {
    content: "\f021";
}

/* ==========================================================================
   消息通知
   ========================================================================== */

#messagestack .alert {
    border-radius: var(--oc-radius);
    box-shadow: var(--oc-shadow-md);
    border: 0;
}

/* ==========================================================================
   登录页 — 简约高级居中卡片
   ========================================================================== */

body.task-login {
    height: 100vh;
    overflow: hidden;
}

.task-login #layout-content {
    background: transparent;
    position: relative;
    display: block !important;
    height: 100vh;
    height: 100dvh;
    min-height: 100vh;
    width: 100%;
}

.task-login #logo {
    position: static;
    top: auto;
    max-height: 56px;
    margin-bottom: 1.75rem;
    border-radius: 12px;
}

#login-form {
    position: static !important;
    top: auto !important;
    left: auto !important;
    transform: none !important;
    width: 100%;
    max-width: none;
    margin: 0;
    background: var(--oc-white);
    border: 1px solid var(--oc-border);
    border-radius: 14px;
    box-shadow: var(--oc-shadow-lg);
    padding: 2.4rem 2.4rem 2.1rem;
}

/* ===== 图标 + 输入框同行（关键修复） ===== */

#login-form .input-group {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center;
    border: 1px solid var(--oc-border-strong);
    border-radius: var(--oc-radius);
    background: var(--oc-white);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: border-color .15s ease, box-shadow .15s ease;
}

#login-form .input-group:focus-within {
    border-color: var(--oc-primary);
    box-shadow: 0 0 0 3px rgba(15, 23, 42, .12);
}

/* 图标：固定宽度，居中，不换行 */
#login-form .input-group > .icon,
#login-form .input-group > .input-group-text {
    flex: 0 0 auto;
    width: 3rem;
    min-width: 3rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--oc-text-tertiary);
    background: transparent;
    border: 0;
    padding: 0;
    margin: 0;
}

#login-form .input-group > .icon:before,
#login-form .input-group > .input-group-text:before {
    float: none !important;
    display: block;
    margin: 0 !important;
}

/* 输入框：占满剩余宽度，不换行 */
#login-form .input-group > .form-control,
#login-form .input-group > input[type="text"],
#login-form .input-group > input[type="password"] {
    flex: 1 1 auto;
    width: 1% !important;
    min-width: 0;
    border: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    height: 3.15rem;
    color: var(--oc-text);
    font-size: 1.05rem;
    padding: 0 .9rem 0 .2rem;
}

#login-form .input-group > .form-control:focus {
    outline: none;
    box-shadow: none;
    border: 0;
}

#login-form .input-group > .form-control::placeholder {
    color: var(--oc-text-tertiary);
}

/* 登录按钮 */
#login-form p.formbuttons {
    text-align: right;
    margin-top: .25rem;
}

#rcmloginsubmit {
    background: var(--oc-primary);
    border: 1px solid var(--oc-primary);
    border-radius: var(--oc-radius);
    color: #fff;
    padding: .65rem 1.8rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s ease, box-shadow .15s ease;
}

#rcmloginsubmit:hover {
    background: var(--oc-primary-hover);
    border-color: var(--oc-primary-hover);
    box-shadow: 0 2px 8px rgba(15, 23, 42, .18);
}

/* btn-lg override (compact size) */
#rcmloginsubmit.btn-lg {
    padding: .65rem 1.8rem !important;
    font-size: 1rem !important;
    line-height: 1.5;
    border-radius: var(--oc-radius) !important;
}

#login-footer {
    position: absolute;
    bottom: 1.5rem;
    left: 0;
    right: 0;
    color: var(--oc-text-tertiary);
    text-align: center;
    margin-top: 0;
}

#login-footer > div {
    background: transparent;
    padding: 0;
    margin-top: 0;
    font-size: .78rem;
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media screen and (max-width: 768px) {
    .task-login #layout-content {
        padding: 1.5rem;
    }

    #login-form {
        padding: 1.75rem 1.25rem;
    }
}


/* ==========================================================================
   login wrap + notice board
   ========================================================================== */

.login-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    max-width: 415px;
}

.login-notice {
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.14);
    color: var(--oc-text-secondary);
    font-size: .9rem;
    line-height: 1.6;
    white-space: pre-line;
    text-align: center;
}


/* ==========================================================================
   阅读窗格 header 右侧：当前登录邮箱
   ========================================================================== */

.header-user {
    margin-left: auto;
    color: var(--oc-text);
    font-size: 1.11rem;
    font-weight: 700;
    padding: 0 1rem 0 .5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 260px;
}


/* ==========================================================================
   邮件主页：两栏浮在统一波纹背景上（露出与登录页一致的背景）
   ========================================================================== */

body.task-mail #layout {
    padding: 10px;
    gap: 10px;
}

body.task-mail #layout-list,
body.task-mail #layout-content {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.07);
}

body.task-mail #layout-list > .header,
body.task-mail #layout-content > .header {
    border-radius: 12px 12px 0 0;
}


/* 隐藏"添加至通讯录"图标 */
.rcmaddcontact {
    display: none !important;
}


/* 隐藏 mailto 菜单（写信/添加至通讯录） */
#mailto-menu {
    display: none !important;
}