/* 迁移公告使用独立命名，避免影响原有账户、文章和管理界面。 */
body.has-migration-notice { padding-top: 56px; }
html.migration-modal-open { overflow: hidden; }
.migration-banner, .migration-dialog, .migration-dialog * { box-sizing: border-box; }
.migration-banner {
    position: fixed; inset: 0 0 auto; z-index: 1000;
    display: flex; align-items: center; justify-content: center; gap: 18px;
    min-height: 48px; padding: 10px 20px; background: #0f5b40; color: #fff;
    font: 14px/1.5 "Microsoft YaHei", "PingFang SC", sans-serif;
}
.migration-banner-text { font-weight: 700; }
.migration-banner-button, .migration-banner-link {
    color: #fff; border: 0; background: transparent; cursor: pointer;
    padding: 2px 0; font: inherit; white-space: nowrap; text-decoration: underline; text-underline-offset: 3px;
}
.migration-dialog {
    width: min(560px, calc(100vw - 32px)); max-width: none;
    max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px);
    margin: auto; padding: 0; border: 0; border-radius: 16px; overflow: hidden;
    background: #fff; color: #1d2732; box-shadow: 0 28px 100px #091c3066;
    text-align: left; font: 14px/1.65 "Microsoft YaHei", "PingFang SC", sans-serif;
}
.migration-dialog[open] { display: flex; flex-direction: column; }
.migration-dialog::backdrop { background: #10232ac7; backdrop-filter: blur(3px); }
.migration-dialog :is(p, h2, h3, ul) { margin: 0; }
.migration-dialog a { text-decoration: none; }
.migration-dialog button { font: inherit; cursor: pointer; }
.migration-dialog :is(a, button):focus-visible, .migration-banner :is(a, button):focus-visible {
    outline: 3px solid #d97822; outline-offset: 3px;
}
.migration-header { position: relative; flex-shrink: 0; padding: 22px 54px 17px 26px; border-bottom: 1px solid #dbe3e9; }
.migration-kicker { color: #0f5b40; font-size: 12px; font-weight: 700; letter-spacing: 1px; }
.migration-title { margin-top: 5px !important; font-size: 24px; line-height: 1.4; font-weight: 800; }
.migration-close {
    position: absolute; right: 12px; top: 13px; width: 36px; height: 36px;
    border: 0; border-radius: 50%; background: #f3f6f8; color: #657381; font-size: 26px !important; line-height: 1 !important;
}
.migration-content { flex: 1 1 auto; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 18px 26px; }
.migration-intro { color: #526170; }
.migration-offer { margin-top: 16px; padding: 13px 18px 16px; background: #eaf8f1; border: 1px solid #c9e8d9; border-radius: 10px; }
.migration-feature { color: #0f5b40; font-size: 13px; font-weight: 700; }
.migration-numbers { display: grid; grid-template-columns: 1fr 1fr; margin-top: 4px; }
.migration-number { display: flex; align-items: baseline; gap: 9px; color: #0f5b40; }
.migration-number + .migration-number { padding-left: 22px; border-left: 1px solid #b6d7c7; }
.migration-number strong { font: 700 42px/1.15 "Bahnschrift", "Arial Narrow", sans-serif; letter-spacing: -1px; }
.migration-number span { font-size: 13px; white-space: nowrap; }
.migration-benefits { list-style: none; padding: 0; }
.migration-benefit { position: relative; padding: 13px 0 0 17px; }
.migration-benefit::before { content: ""; position: absolute; left: 0; top: 22px; width: 6px; height: 6px; border-radius: 50%; background: #0f5b40; }
.migration-benefit h3 { font-size: 14px; font-weight: 700; }
.migration-benefit p { margin-top: 3px; color: #657381; font-size: 13px; line-height: 1.7; }
.migration-invitation { margin-top: 16px !important; color: #0f5b40; font-size: 13px; line-height: 1.75; }
.migration-balance { margin-bottom: 12px; padding: 9px 12px; background: #fff5e9; border-radius: 6px; text-align: left; }
.migration-balance h3 { font-size: 14px; color: #884710; }
.migration-balance p { margin-top: 4px; color: #72583f; font-size: 13px; }
.migration-contact { font-weight: 700; user-select: all; }
.migration-terms { margin-top: 12px !important; color: #657381; font-size: 11px; line-height: 1.6; }
.migration-footer { flex-shrink: 0; padding: 14px 26px 12px; border-top: 1px solid #dbe3e9; background: #fff; text-align: center; }
.migration-action { display: block; padding: 10px 16px; border-radius: 8px; background: #0f5b40; color: #fff; font-size: 16px; font-weight: 700; line-height: 1.5; }
.migration-action:hover { background: #137845; color: #fff; }
.migration-address { display: block; font: 12px/1.5 "Bahnschrift", Arial, sans-serif; font-weight: 400; opacity: .85; }
.migration-stay { margin-top: 6px; border: 0; padding: 5px 12px; color: #657381; background: transparent; font-size: 12px !important; }
.migration-close:hover, .migration-stay:hover { color: #1d2732; background: #f3f6f8; }
@media (max-width: 600px) {
    body.has-migration-notice { padding-top: 72px; }
    .migration-banner { gap: 4px 18px; padding: 8px 12px; flex-wrap: wrap; font-size: 12px; }
    .migration-banner-text { flex-basis: 100%; text-align: center; }
    .migration-dialog { width: calc(100vw - 24px); max-height: calc(100vh - 24px); max-height: calc(100dvh - 24px); border-radius: 12px; }
    .migration-header { padding: 17px 44px 13px 18px; }
    .migration-title { font-size: 20px; }
    .migration-kicker { font-size: 11px; letter-spacing: .5px; }
    .migration-close { right: 8px; top: 11px; width: 30px; height: 30px; }
    .migration-content { padding: 14px 18px; }
    .migration-intro { font-size: 13px; }
    .migration-offer { padding: 11px 14px 13px; margin-top: 12px; }
    .migration-number { flex-direction: column; gap: 0; }
    .migration-number strong { font-size: 36px; }
    .migration-number + .migration-number { padding-left: 20px; }
    .migration-benefit { padding-top: 11px; }
    .migration-benefit::before { top: 20px; }
    .migration-benefit h3 { font-size: 13px; }
    .migration-footer { padding: 11px 18px max(9px, env(safe-area-inset-bottom)); }
}