/**
 * 卡尼奶主题 — 消息中心布局样式
 * 普通消息区域对齐演示文件夹中的《消息中心-预览.html》；私信聊天区样式见 message-extra.css。
 */

/* ========== 页面作用域变量 ========== */
.knn-msg-center * { box-sizing: border-box; }
.knn-msg-center a { text-decoration: none; }
.knn-msg-center img { display: block; }
.knn-msg-center {
    --knn-primary: var(--knn-color-primary, #2f9bff);
    --knn-primary-soft: #49a8ff;
    --knn-primary-mint: #7ed9ff;
    --knn-primary-shadow: rgba(47, 155, 255, 0.22);
    --knn-bg-canvas: #f4f5f7;
    --knn-bg-white: #ffffff;
    --knn-text-main: #1a1a1a;
    --knn-text-muted: #8a919f;
    --knn-border-light: rgba(27, 31, 35, 0.06);
    --knn-radius-xl: 18px;
    --knn-radius-lg: 14px;
    --knn-shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --knn-shadow-md: 0 4px 14px rgba(0,0,0,0.07);

    max-width: 1000px;
    margin: 0 auto;
    padding: 28px 20px 80px;
    font-size: 14px;
}
body.dark-mode,
body.dark-mode-auto { background: #0d1117; }
body.dark-mode .knn-msg-center,
body.dark-mode-auto .knn-msg-center {
    --knn-bg-canvas: #0d1117;
    --knn-bg-white: #161b22;
    --knn-text-main: #c9d1d9;
    --knn-text-muted: #8b949e;
    --knn-border-light: rgba(240,246,252,0.08);
    --knn-shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
    --knn-shadow-md: 0 4px 14px rgba(0,0,0,0.45);
}

/* ========== 未登录提示 ========== */
.knn-msg-login-box {
    background: var(--knn-bg-white);
    border-radius: var(--knn-radius-xl);
    box-shadow: var(--knn-shadow-md);
    text-align: center;
    padding: 80px 20px;
}
.knn-msg-login-box .knn-login-icon { font-size: 46px; margin-bottom: 16px; }
.knn-msg-login-box h2 { font-size: 20px; margin: 0 0 8px; color: var(--knn-text-main); }
.knn-msg-login-box p { color: var(--knn-text-muted); margin: 0 0 22px; }
.knn-msg-login-box .knn-login-btn {
    display: inline-block;
    padding: 11px 40px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--knn-primary-soft), var(--knn-primary-mint));
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 6px 16px var(--knn-primary-shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}
.knn-msg-login-box .knn-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(47, 155, 255, 0.28);
}

/* ========== ① 渐变欢迎横幅 ========== */
.knn-msg-hero {
    position: relative;
    overflow: hidden;
    border-radius: var(--knn-radius-xl);
    padding: 30px 32px 26px;
    color: #fff;
    background: linear-gradient(135deg, #2f9bff 0%, #49b5ff 54%, #7ed9ff 100%);
    box-shadow: 0 8px 22px var(--knn-primary-shadow);
}
/* 右上角装饰铃铛 */
.knn-msg-hero-deco {
    position: absolute;
    right: -22px;
    top: -28px;
    width: 190px;
    height: 190px;
    opacity: 0.14;
    transform: rotate(12deg);
    pointer-events: none;
}
.knn-msg-hero-main {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    position: relative;
}
.knn-msg-hero-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 3px solid rgba(255,255,255,0.65);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    flex-shrink: 0;
    object-fit: cover;
}
.knn-msg-hero-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 6px;
    color: #fff;
}
.knn-msg-hero-sub {
    font-size: 14px;
    opacity: 0.92;
    margin: 0;
}
.knn-stat-value {
    font-size: 26px;
    font-weight: 800;
    padding: 0 3px;
    line-height: 1;
}
.knn-msg-hero-btn {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 11px 22px;
    border: none;
    border-radius: 999px;
    background: #fff;
    color: var(--knn-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
    transition: transform 0.25s, box-shadow 0.25s;
}

body.dark-mode .knn-msg-hero-btn,
body.dark-mode-auto .knn-msg-hero-btn {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.24);
    box-shadow: none;
}
body.dark-mode .knn-msg-hero-btn:hover,
body.dark-mode-auto .knn-msg-hero-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: none;
}
.knn-msg-hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.18);
}
.knn-msg-hero-btn svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; }

/* ========== ② 胶囊分类标签栏 ========== */
.knn-msg-tabs {
    display: flex;
    gap: 10px;
    margin: 22px 0 18px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
}
.knn-msg-tabs::-webkit-scrollbar { display: none; }
.knn-tab-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 999px;
    background: var(--knn-bg-white);
    color: var(--knn-text-main);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: var(--knn-shadow-sm);
    transition: all 0.25s cubic-bezier(0.4,0,0.2,1);
    border: 1px solid transparent;
}
.knn-tab-pill .knn-tab-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 18px;
    width: 18px;
    height: 18px;
    line-height: 1;
}
.knn-tab-pill:hover {
    border-color: rgba(73, 168, 255, 0.32);
    color: var(--knn-primary);
    transform: translateY(-1px);
}
.knn-tab-pill.active {
    background: linear-gradient(135deg, var(--knn-primary-soft), var(--knn-primary-mint));
    color: #fff;
    box-shadow: 0 6px 16px var(--knn-primary-shadow);
}
.knn-tab-badge {
    font-style: normal;
    background: #ff5473;
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 1px 7px;
    border-radius: 999px;
    min-width: 20px;
    text-align: center;
}
.knn-tab-pill.active .knn-tab-badge { background: #fff; color: var(--knn-primary); }

/* ========== ③ 内容主卡片 ========== */
.knn-msg-main {
    background: var(--knn-bg-white);
    border-radius: var(--knn-radius-xl);
    box-shadow: var(--knn-shadow-md);
    padding: 8px 22px 22px;
    min-height: 460px;
}
.knn-msg-pane { display: none; animation: knn-fade-in 0.3s ease; }
.knn-msg-pane.active { display: block; }
@keyframes knn-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 面板工具条：标题 + 只看未读 */
.knn-pane-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 2px 14px;
    border-bottom: 1px solid var(--knn-border-light);
}
.knn-pane-title { font-size: 16px; font-weight: 700; color: var(--knn-text-main); }
.knn-pane-title small { font-weight: 400; color: var(--knn-text-muted); margin-left: 8px; font-size: 12px; }
.knn-filter-unread {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--knn-border-light);
    border-radius: 999px;
    background: transparent;
    color: var(--knn-text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}
.knn-filter-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--knn-text-muted);
    transition: background 0.2s;
}
.knn-filter-unread:hover { border-color: rgba(47, 155, 255, 0.4); color: var(--knn-primary); }
.knn-filter-unread.on {
    background: rgba(47, 155, 255, 0.1);
    border-color: rgba(47, 155, 255, 0.4);
    color: var(--knn-primary);
}
.knn-filter-unread.on .knn-filter-dot { background: var(--knn-primary); }

/* ========== 消息列表行 ========== */
.knn-msg-list { padding-top: 6px; }
.knn-msg-item {
    display: flex;
    gap: 14px;
    padding: 16px 12px;
    border-radius: var(--knn-radius-lg);
    cursor: pointer;
    position: relative;
    transition: background 0.2s, transform 0.2s;
}
.knn-msg-item + .knn-msg-item { border-top: 1px solid var(--knn-border-light); }
.knn-msg-item:hover {
    background: rgba(47, 155, 255, 0.05);
    transform: translateX(3px);
}
.knn-item-avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
    object-fit: cover;
}
/* 系统类消息用图标方块 */
.knn-item-avatar.is-icon {
    background: rgba(47, 155, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    border-radius: 12px;
}
/* 未读红点 */
.knn-msg-item.unread .knn-item-avatar::after {
    content: '';
    position: absolute;
    top: -1px;
    right: -1px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--knn-primary);
    border: 2px solid var(--knn-bg-white);
}
.knn-item-main { flex: 1; min-width: 0; }
.knn-item-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--knn-text-main);
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}
.knn-msg-item.unread .knn-item-title { color: var(--knn-primary); }
.knn-item-excerpt {
    font-size: 13px;
    color: var(--knn-text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
}
.knn-item-side {
    flex-shrink: 0;
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}
.knn-item-time { font-size: 12px; color: var(--knn-text-muted); white-space: nowrap; }
.knn-item-tag {
    font-size: 11px;
    color: var(--knn-primary);
    background: rgba(47, 155, 255, 0.1);
    padding: 2px 8px;
    border-radius: 6px;
    white-space: nowrap;
}
.knn-msg-item.is-read { opacity: 0.72; }

/* 加载更多 / 空状态 */
.knn-load-more {
    display: block;
    margin: 18px auto 8px;
    padding: 10px 34px;
    border: 1px solid rgba(47, 155, 255, 0.35);
    border-radius: 999px;
    background: transparent;
    color: var(--knn-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}
.knn-load-more:hover { background: rgba(47, 155, 255, 0.08); }
.knn-msg-empty {
    text-align: center;
    padding: 70px 20px;
    color: var(--knn-text-muted);
}
.knn-msg-empty .knn-empty-icon { font-size: 54px; margin-bottom: 14px; opacity: 0.5; }

/* ========== 消息详情视图 ========== */
.knn-msg-detail { padding: 22px 4px 10px; }
.knn-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--knn-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 18px;
    transition: transform 0.2s;
}
.knn-detail-back:hover { transform: translateX(-4px); }
.knn-detail-head {
    background: linear-gradient(135deg, rgba(0,122,255,0.08), rgba(90,200,250,0.05));
    border-radius: var(--knn-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}
.knn-detail-head img { width: 46px; height: 46px; border-radius: 50%; }
.knn-detail-sender { font-weight: 600; color: var(--knn-primary); font-size: 15px; }
.knn-detail-time { font-size: 12px; color: var(--knn-text-muted); margin-top: 4px; }
.knn-detail-title { font-size: 18px; font-weight: 700; color: var(--knn-text-main); margin-bottom: 12px; }
.knn-detail-body {
    font-size: 14px;
    line-height: 1.9;
    color: var(--knn-text-main);
    padding: 4px 2px;
}
.knn-detail-body .knn-quote {
    background: rgba(47, 155, 255, 0.06);
    border-left: 3px solid var(--knn-primary);
    border-radius: 6px;
    padding: 12px 16px;
    margin-top: 14px;
    color: var(--knn-text-muted);
    font-size: 13px;
}

/* ========== 动态接入补充 ========== */
.knn-msg-content-area { display: none; }
.knn-msg-empty img { width: 120px; margin: 0 auto 14px; }
.knn-msg-empty p { margin: 0; }
.knn-loader-center {
    text-align: center;
    padding: 70px 20px;
    color: var(--knn-text-muted);
}
.knn-spin-circle {
    width: 46px;
    height: 46px;
    border: 4px solid var(--knn-border-light);
    border-top-color: var(--knn-primary);
    border-radius: 50%;
    margin: 0 auto 18px;
    animation: knn-msg-spin 0.8s linear infinite;
}
@keyframes knn-msg-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.knn-loader-center p { margin: 0; font-size: 14px; }
.knn-load-more[disabled] { opacity: 0.5; cursor: default; }
.knn-detail-back { text-decoration: none; }
.knn-detail-back:hover { color: var(--knn-primary); }
.knn-detail-head img { object-fit: cover; flex-shrink: 0; }
.knn-detail-sender a { color: inherit; text-decoration: none; }
.knn-detail-sender a:hover { opacity: 0.8; }
.knn-detail-title { margin-top: 0; line-height: 1.5; }
.knn-detail-body { word-break: break-word; overflow-wrap: break-word; }
.knn-msg-pane.knn-private-chat.active { display: flex; flex-direction: column; }
/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .knn-msg-center { padding: 16px 12px 60px; }
    .knn-msg-hero { padding: 22px 20px; }
    .knn-msg-hero-btn { margin-left: 0; width: 100%; justify-content: center; }
    .knn-msg-main { padding: 4px 14px 16px; }
    .knn-item-side { gap: 4px; }
    .knn-msg-item:hover { transform: none; }
}

/* ========== 固定消息中心版心 ========== */
.knn-msg-center {
    width: 1000px;
    max-width: calc(100vw - 40px);
    min-width: 0;
    flex: 0 0 auto;
}
.knn-msg-hero,
.knn-msg-tabs,
.knn-msg-main,
.knn-msg-pane,
.knn-msg-list-container,
.knn-msg-list,
.knn-msg-content-area,
.knn-msg-detail {
    width: 100%;
    max-width: 100%;
    min-width: 0;
}
.knn-msg-main,
.knn-msg-pane,
.knn-msg-list-container,
.knn-msg-content-area {
    overflow-x: hidden;
}
.knn-msg-item {
    width: 100%;
    max-width: 100%;
    min-width: 0;
}
.knn-item-main,
.knn-item-title,
.knn-item-excerpt,
.knn-detail-title,
.knn-detail-body,
.knn-detail-body * {
    max-width: 100%;
    min-width: 0;
}
.knn-item-title,
.knn-item-excerpt {
    word-break: normal;
    overflow-wrap: anywhere;
}
.knn-detail-body {
    word-break: break-word;
    overflow-wrap: anywhere;
}
.knn-detail-body img,
.knn-detail-body video,
.knn-detail-body iframe,
.knn-detail-body table,
.knn-detail-body pre {
    max-width: 100%;
}
.knn-detail-body pre {
    overflow-x: auto;
}
@media (max-width: 768px) {
    .knn-msg-center {
        width: calc(100vw - 24px);
        max-width: calc(100vw - 24px);
    }
}

/* ========== 消息详情：强制对齐演示稿 ========== */
.knn-msg-center .knn-msg-content-area {
    width: 100%;
    max-width: 100%;
}
.knn-msg-center .knn-msg-detail {
    width: 100%;
    max-width: 100%;
    padding: 22px 4px 10px;
    color: var(--knn-text-main);
}
.knn-msg-center .knn-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--knn-primary);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
    margin: 0 0 18px;
    padding: 0;
    border: 0;
    background: transparent;
    text-decoration: none;
    transition: transform 0.2s;
}
.knn-msg-center .knn-detail-back:hover {
    transform: translateX(-4px);
    color: var(--knn-primary);
    text-decoration: none;
}
.knn-msg-center .knn-detail-head {
    width: 100%;
    background: linear-gradient(135deg, rgba(0,122,255,0.08), rgba(90,200,250,0.05));
    border-radius: var(--knn-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 0 0 18px;
    border: 0;
    box-shadow: none;
}
.knn-msg-center .knn-detail-head img {
    width: 46px;
    height: 46px;
    min-width: 46px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.knn-msg-center .knn-detail-sender {
    font-weight: 600;
    color: var(--knn-primary);
    font-size: 15px;
    line-height: 1.3;
    margin: 0;
}
.knn-msg-center .knn-detail-sender a {
    color: inherit;
    text-decoration: none;
}
.knn-msg-center .knn-detail-time {
    font-size: 12px;
    color: var(--knn-text-muted);
    line-height: 1.4;
    margin-top: 4px;
}
.knn-msg-center .knn-detail-title {
    display: block;
    width: 100%;
    font-size: 18px;
    font-weight: 700;
    color: var(--knn-text-main);
    margin: 0 0 12px;
    padding: 0;
    line-height: 1.5;
    border: 0;
    background: transparent;
}
.knn-msg-center .knn-detail-body {
    width: 100%;
    font-size: 14px;
    line-height: 1.9;
    color: var(--knn-text-main);
    padding: 4px 2px;
    margin: 0;
    border: 0;
    background: transparent;
}
.knn-msg-center .knn-detail-body p {
    margin: 0 0 12px;
}
.knn-msg-center .knn-detail-body .knn-quote {
    background: rgba(47, 155, 255, 0.06);
    border-left: 3px solid var(--knn-primary);
    border-radius: 6px;
    padding: 12px 16px;
    margin-top: 14px;
    color: var(--knn-text-muted);
    font-size: 13px;
}

.knn-msg-center .knn-detail-body .knn-quote a {
    color: inherit;
    text-decoration: none;
    display: block;
}
.knn-msg-center .knn-detail-body .knn-quote a:hover {
    color: var(--knn-primary);
}

/* ========== 移动端顶部导航避让 ========== */
@media (max-width: 768px) {
    .knn-msg-center {
        padding-top: calc(72px + env(safe-area-inset-top, 0px)) !important;
    }
}

/* ========== 分类按钮空心 SVG 图标 ========== */
.knn-msg-center .knn-tab-svg {
    width: 18px;
    height: 18px;
    display: block;
    fill: none !important;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.knn-msg-center .knn-tab-svg path,
.knn-msg-center .knn-tab-svg polyline,
.knn-msg-center .knn-tab-svg line,
.knn-msg-center .knn-tab-svg circle {
    fill: none !important;
    stroke: currentColor;
}