/* announcement.css - 精简版（公告模态框移动端间距修复） */
.announcement-modal-simple {
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: calc(100% - 60px);
    background: transparent;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 12px;
    box-sizing: border-box;
}
.announcement-modal-simple.active {
    opacity: 1;
    visibility: visible;
}

.announcement-modal-container {
    width: 100%;
    max-width: 480px;
    background: var(--bg-card, #ffffff);
    border: 1px solid var(--border-color, #e0e0e0);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0,0,0,.12);
    overflow: hidden;
    transform: scale(.95);
    opacity: 0;
    transition: transform .3s ease, opacity .3s ease;
    margin: auto 0; /* 垂直居中 */
}
.announcement-modal-simple.active .announcement-modal-container {
    transform: scale(1);
    opacity: 1;
}

.announcement-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px 8px;
    border-bottom: 1px solid rgba(0,0,0,.08);
    color: var(--text-primary, #1e293b);
}
.announcement-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.05rem;
    margin: 0;
}
.announcement-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0,0,0,.05);
    border: none;
    color: var(--text-secondary, #64748b);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .2s;
}
.announcement-close:hover {
    background: rgba(0,0,0,.1);
    color: var(--text-primary, #334155);
}

.announcement-body {
    padding: 16px 20px 12px;
    display: flex;
    flex-direction: column;
    max-height: 350px;
}
.focus-section {
    background: #fff0f0;
    padding: 8px 12px;
    margin-bottom: 16px;
    border-radius: 6px;
}
.focus-content {
    color: #dc2626;
    font-size: .85rem;
    line-height: 1.5;
    margin: 0;
}

.updates-section {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    margin-bottom: 8px;
}
.updates-section::-webkit-scrollbar { display: none; }
.updates-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary, #1e293b);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.updates-title i { color: #10b981; font-size: 13px; }
.announcement-full-content {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary, #475569);
    margin: 0;
    padding: 0;
}

.announcement-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 16px;
    background: transparent;
    border-top: 1px solid var(--border-color, #e0e0e0);
}
.announcement-date {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-secondary, #6c757d);
    font-size: .78rem;
}
.announcement-ack-btn {
    background: var(--primary-color, #4361ee);
    border: none;
    color: #fff;
    font-size: .82rem;
    font-weight: 500;
    padding: 5px 18px;
    border-radius: 40px;
    cursor: pointer;
    transition: background .2s, box-shadow .2s;
    box-shadow: 0 2px 8px rgba(67,97,238,.2);
}
.announcement-ack-btn:hover {
    background: #3651d4;
    box-shadow: 0 4px 12px rgba(67,97,238,.3);
}

/* 移动端：左右间距与主页一致 */
@media (max-width: 768px) {
    .announcement-modal-simple {
        padding-left: var(--container-padding-xs, 16px);
        padding-right: var(--container-padding-xs, 16px);
        padding-top: calc(60px + var(--container-padding-xs, 16px));
        padding-bottom: var(--container-padding-xs, 16px);
        align-items: flex-start;
        justify-content: center;
    }
    .announcement-modal-container {
        max-width: 100%;
        margin: auto 0;
        border-radius: 8px;
    }
}

/* 响应式 */
@media (max-width:600px) {
    .announcement-header { padding: 8px 12px 6px; }
    .announcement-title { font-size: 1rem; }
    .announcement-body { padding: 14px 18px 10px; }
    .focus-content { font-size: .8rem; }
    .announcement-footer { padding: 10px 18px 14px; }
    .announcement-date { font-size: .73rem; }
    .announcement-ack-btn { padding: 4px 14px; font-size: .78rem; }
}
@media (max-width:400px) {
    .announcement-modal-container { border-radius: 6px; }
    .announcement-header { padding: 6px 10px 4px; }
    .announcement-body { padding: 12px 14px 8px; }
    .focus-content { font-size: .78rem; }
}
@media (prefers-reduced-motion:reduce) {
    .announcement-modal-simple,
    .announcement-modal-container,
    .announcement-close,
    .announcement-ack-btn { transition: none !important; }
    .announcement-modal-container { transform: scale(1); }
    .announcement-modal-simple.active .announcement-modal-container { transform: scale(1); }
}

/* 深色模式 */
.dark-mode .announcement-modal-container {
    background: var(--bg-card);
    border-color: var(--border-color);
    box-shadow: 0 8px 32px rgba(0,0,0,.3);
}
.dark-mode .announcement-header {
    border-bottom-color: rgba(255,255,255,.08);
    color: var(--text-primary);
}
.dark-mode .announcement-close {
    background: rgba(255,255,255,.08);
    color: var(--text-secondary);
}
.dark-mode .announcement-close:hover {
    background: rgba(255,255,255,.15);
    color: var(--text-primary);
}
.dark-mode .focus-section { background: rgba(220,38,38,.15); }
.dark-mode .focus-content { color: #f87171; }
.dark-mode .updates-title { color: var(--text-primary); }
.dark-mode .updates-title i { color: #34d399; }
.dark-mode .announcement-full-content { color: var(--text-secondary); }
.dark-mode .announcement-footer { border-top-color: var(--border-color); }
.dark-mode .announcement-date { color: var(--text-secondary); }
.dark-mode .announcement-ack-btn { background: var(--primary-color); }
.dark-mode .announcement-ack-btn:hover { background: #5a7aff; }