/* =====================================================================
 * changelog.css
 * 更新日志页面 + 按钮红点 - 风格沿袭 chat-settings-page
 * ===================================================================== */

/* ---------- 设置页按钮红点 ---------- */
#changelog-open-btn {
    position: relative;
    flex-shrink: 0;
}

#changelog-open-btn.changelog-has-new::after {
    content: '';
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: #FF3B30;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}

/* ---------- 全屏页 ---------- */
.changelog-page {
    position: absolute;
    inset: 0;
    background: #f5f5f7;
    z-index: 960;
    display: none;
    flex-direction: column;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
}

.changelog-page.active {
    display: flex;
    animation: cl-page-in 0.3s cubic-bezier(0.2, 0, 0, 1);
}

@keyframes cl-page-in {
    from {
        transform: translateX(20px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 顶栏 */
.changelog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 52px 20px 16px 20px;
    background: #f5f5f7;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.changelog-back-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1D1D1F;
    cursor: pointer;
    transition: transform 0.2s;
    padding: 0;
}

.changelog-back-btn:active {
    transform: scale(0.95);
    background: #F4F7F9;
}

.changelog-back-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.changelog-title {
    font-size: 15px;
    font-weight: 500;
    color: #5F6B73;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.changelog-spacer {
    width: 40px;
    height: 40px;
}

/* 内容区 */
.changelog-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 20px 60px;
    -webkit-overflow-scrolling: touch;
}

.changelog-empty {
    text-align: center;
    color: #9FA6AB;
    padding: 80px 30px;
    font-size: 13px;
}

/* 单个版本条目 */
.changelog-entry {
    background: #fff;
    border-radius: 24px;
    padding: 22px 22px 18px;
    margin-bottom: 14px;
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.02),
        0 8px 24px rgba(0, 0, 0, 0.04),
        0 0 0 1px rgba(0, 0, 0, 0.02);
    position: relative;
    overflow: hidden;
}

.changelog-entry::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(69, 73, 77, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.changelog-entry-head {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(69, 73, 77, 0.08);
}

.changelog-version {
    font-size: 18px;
    font-weight: 700;
    color: #45494D;
    letter-spacing: -0.4px;
}

.changelog-date {
    font-size: 12px;
    color: #9FA6AB;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* body 里的自由排版 */
.changelog-body {
    font-size: 14px;
    color: #45494D;
    line-height: 1.65;
}

.changelog-body h4 {
    font-size: 13px;
    font-weight: 600;
    color: #5F6B73;
    margin: 12px 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.changelog-body h4:first-child {
    margin-top: 0;
}

.changelog-body p {
    margin: 6px 0;
}

.changelog-body ul,
.changelog-body ol {
    margin: 6px 0;
    padding-left: 22px;
}

.changelog-body li {
    margin: 6px 0;
    line-height: 1.6;
}

.changelog-body strong {
    color: #1D1D1F;
    font-weight: 600;
}

.changelog-body em {
    color: #5F6B73;
    font-style: normal;
    background: rgba(69, 73, 77, 0.06);
    padding: 1px 6px;
    border-radius: 6px;
    font-size: 13px;
}

.changelog-body code {
    background: rgba(69, 73, 77, 0.08);
    padding: 1px 6px;
    border-radius: 6px;
    font-size: 12.5px;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    color: #1D1D1F;
}

.changelog-body a {
    color: #007AFF;
    text-decoration: none;
}

.changelog-body a:active {
    opacity: 0.7;
}

/* ---------- 暗色模式 ---------- */
.phone-frame.dark-mode .changelog-page,
.phone-frame.dark-mode .changelog-header {
    background: #1c1c1e;
}

.phone-frame.dark-mode .changelog-entry {
    background: #2c2c2e;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.phone-frame.dark-mode .changelog-version,
.phone-frame.dark-mode .changelog-body strong {
    color: #fff;
}

.phone-frame.dark-mode .changelog-body {
    color: #E5E5EA;
}

.phone-frame.dark-mode .changelog-back-btn {
    background: #2c2c2e;
    border-color: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.phone-frame.dark-mode .changelog-title,
.phone-frame.dark-mode .changelog-body h4,
.phone-frame.dark-mode .changelog-date {
    color: #98989E;
}

.phone-frame.dark-mode .changelog-entry-head {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.phone-frame.dark-mode .changelog-body em,
.phone-frame.dark-mode .changelog-body code {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}