/* ============================================================
   回响档案 · 2009 中文论坛视觉系统 v2
   参考：Discuz! 6.1 / 7.0 默认皮肤
   特点：1px 边框拼接 / 纯色渐变条 / 12px 宋体 / 2px outset 按钮
   文件：wwwroot/hxda/css/main.css
   ============================================================ */

/* ============================================================
   0. 全局重置
   ============================================================ */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    overflow-y: scroll;
    background: #d8d8d8;
}

body {
    background: #d8d8d8;
    font-family: "SimSun", "宋体", "新宋体", "NSimSun", "MS Song", serif;
    font-size: 12px;
    line-height: 1.6;
    color: #333;
    text-align: center;
    -webkit-font-smoothing: none;
    -moz-osx-font-smoothing: grayscale;
    font-smooth: never;
    text-rendering: optimizeSpeed;
    padding: 8px 0;
}

a {
    color: #1a3a6b;
    text-decoration: none;
}

    a:hover {
        color: #c00;
        text-decoration: underline;
    }

img {
    border: 0;
    vertical-align: middle;
}

hr {
    border: none;
    border-top: 1px dashed #aaa;
    margin: 12px 0;
}

/* ============================================================
   1. 主容器（960 宽 + 1px 双层边框）
   ============================================================ */
.forum-wrap {
    width: 960px;
    max-width: 98vw;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #999;
    text-align: left;
    position: relative;
}

/* ============================================================
   2. 页头（三栏结构 + 纯色深蓝渐变条）
   ============================================================ */
.forum-head {
    display: flex;
    align-items: stretch;
    height: 72px;
    background: #1a3a6b;
    background-image: linear-gradient(to bottom, #4a6fa5 0%, #2a4a7b 48%, #1a3a6b 52%, #0d1b3e 100%);
    border-bottom: 1px solid #000;
    border-top: 1px solid #6a8fc5;
    position: relative;
    overflow: hidden;
}

    .forum-head .head-logo {
        width: 468px;
        height: 60px;
        margin: 6px 10px;
        background: url('../img/logo.svg') no-repeat center center;
        background-size: contain;
        flex-shrink: 0;
        position: relative;
    }

.forum-wrap[data-attention-level="high"] .forum-head .head-logo::after,
body[data-attention-level="high"] .forum-wrap .forum-head .head-logo::after,
.forum-wrap[data-attention-level="very-high"] .forum-head .head-logo::after,
body[data-attention-level="very-high"] .forum-wrap .forum-head .head-logo::after,
.forum-wrap[data-attention-level="extreme"] .forum-head .head-logo::after,
body[data-attention-level="extreme"] .forum-wrap .forum-head .head-logo::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../img/logo_dark.svg') no-repeat center center;
    background-size: contain;
    animation: logoDarkFlicker 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes logoDarkFlicker {
    0%, 93%, 100% {
        opacity: 0;
    }

    94% {
        opacity: 1;
    }

    95% {
        opacity: 0;
    }

    96% {
        opacity: 0.8;
    }

    97% {
        opacity: 0;
    }
}

.forum-head .head-right {
    flex: 1;
    padding: 8px 14px;
    color: #cfd;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    line-height: 1.6;
}

    .forum-head .head-right .user-info {
        color: #ffd;
        font-size: 12px;
    }

        .forum-head .head-right .user-info a {
            color: #ffd;
        }

    .forum-head .head-right b {
        color: #fff;
    }

    .forum-head .head-right .user-avatar {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        object-fit: cover;
        border: 1px solid rgba(255, 255, 255, 0.2);
        vertical-align: middle;
        margin-right: 6px;
    }

/* ============================================================
   3. 导航条（纯色渐变 + 1px 分隔线）
   ============================================================ */
.forum-nav {
    background: #e0e0e0;
    background-image: linear-gradient(to bottom, #f4f4f4 0%, #e0e0e0 50%, #d8d8d8 51%, #cfcfcf 100%);
    border-bottom: 1px solid #aaa;
    padding: 0;
    display: flex;
    font-size: 12px;
    height: 28px;
    align-items: stretch;
}

    .forum-nav a {
        padding: 0 14px;
        height: 100%;
        display: flex;
        align-items: center;
        color: #1a3a6b;
        border-right: 1px solid #bbb;
        position: relative;
    }

        .forum-nav a:first-child {
            border-left: 1px solid #bbb;
        }

        .forum-nav a:hover {
            background: #fff;
            text-decoration: none;
        }

        .forum-nav a.active {
            background: #fff;
            font-weight: bold;
            border-bottom: 1px solid #fff;
            margin-bottom: -1px;
        }

/* ============================================================
   4. 公告条
   ============================================================ */
.forum-notice {
    background: #fffce8;
    border-bottom: 1px solid #d8c878;
    padding: 6px 14px;
    font-size: 12px;
    color: #665500;
    position: relative;
}

    .forum-notice::before {
        content: '📢 ';
        margin-right: 2px;
    }

/* ============================================================
   5. 统计条
   ============================================================ */
.forum-stats {
    background: #efefef;
    border-bottom: 1px solid #ddd;
    padding: 5px 14px;
    font-size: 11px;
    color: #666;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

    .forum-stats .stat-item {
        display: inline-block;
        margin-right: 16px;
    }

        .forum-stats .stat-item b {
            color: #1a3a6b;
        }

/* ============================================================
   6. 帖子列表（真表格 + 1px 边框）
   ============================================================ */
.post-table {
    width: calc(100% - 16px);
    margin: 8px;
    border-collapse: collapse;
    border: 1px solid #aaa;
    background: #fff;
    font-size: 12px;
}

    .post-table thead th {
        background: #e0e0e0;
        background-image: linear-gradient(to bottom, #f4f4f4 0%, #e0e0e0 50%, #d8d8d8 51%, #cfcfcf 100%);
        border-bottom: 1px solid #aaa;
        border-right: 1px solid #bbb;
        padding: 6px 10px;
        text-align: left;
        font-weight: bold;
        color: #1a3a6b;
        font-size: 12px;
        white-space: nowrap;
    }

        .post-table thead th:last-child {
            border-right: none;
        }

    .post-table tbody td {
        padding: 6px 10px;
        border-bottom: 1px solid #ddd;
        font-size: 12px;
        vertical-align: middle;
    }

    .post-table tbody tr:nth-child(even) td {
        background: #f8f8f8;
    }

    .post-table tbody tr:hover td {
        background: #fff8d0;
    }

    .post-table .col-icon {
        width: 22px;
        text-align: center;
    }

    .post-table .col-title {
        font-size: 12px;
    }

/* PM flash and image styles */
.pm-msg .txt img {
    max-width: 100%;
    max-height: 260px;
    border: 1px solid #888;
    background: #fff;
    padding: 3px;
    display: block;
    margin: 4px 0;
    cursor: pointer;
}

.pm-msg .txt .recalled {
    color: #999;
    font-style: italic;
    font-size: 12px;
}

#pmFlash {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: #000;
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

#pmFlash.show {
    display: flex;
}

#pmFlash .flash-img {
    max-width: 60%;
    max-height: 60%;
    filter: contrast(1.5) brightness(0.8);
}

#pmFlash .flash-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #a00;
    font-family: "SimSun", "宋体", serif;
    font-size: 48px;
    font-weight: bold;
    letter-spacing: 8px;
    text-shadow: 0 0 20px rgba(160, 0, 0, 0.8);
    white-space: nowrap;
}

        .post-table .col-title a {
            font-size: 12px;
            color: #1a3a6b;
        }

            .post-table .col-title a:hover {
                color: #c00;
            }

.thread-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    background: #1a3a6b;
    color: #fff;
    font-size: 10px;
    line-height: 16px;
    text-align: center;
    font-family: "Courier New", monospace;
}

    .thread-icon.hot {
        background: #c33;
    }

    .thread-icon.sticky {
        background: #c80;
    }

    .thread-icon.locked {
        background: #888;
    }

    .thread-icon.unknown {
        background: #111;
        animation: unknownPulse 2.5s ease-in-out infinite;
    }

@keyframes unknownPulse {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.25;
    }
}

/* ============================================================
   7. 分页
   ============================================================ */
.forum-pager {
    text-align: center;
    padding: 10px;
    font-size: 12px;
    background: #f4f4f4;
    border-top: 1px solid #ddd;
}

    .forum-pager a,
    .forum-pager span {
        display: inline-block;
        padding: 2px 9px;
        margin: 0 2px;
        border: 1px solid #bbb;
        background: #fff;
        background-image: linear-gradient(to bottom, #fff 0%, #eee 100%);
        color: #1a3a6b;
        text-decoration: none;
        cursor: pointer;
        font-size: 12px;
    }

    .forum-pager .current {
        background: #1a3a6b;
        background-image: linear-gradient(to bottom, #4a6fa5 0%, #1a3a6b 100%);
        color: #fff;
        border-color: #0d1b3e;
        font-weight: bold;
    }

    .forum-pager a:hover {
        background: #fff8d0;
        text-decoration: none;
    }

/* ============================================================
   8. 底部
   ============================================================ */
.forum-footer {
    background: #ececec;
    border-top: 1px solid #bbb;
    padding: 12px;
    text-align: center;
    font-size: 11px;
    color: #888;
    line-height: 2;
}

    .forum-footer a {
        color: #1a3a6b;
        margin: 0 8px;
    }

/* ============================================================
   9. 按钮（2px outset/inset 经典风格）
   ============================================================ */
.old-btn {
    display: inline-block;
    padding: 4px 16px;
    background: #e6e6e6;
    border: 2px outset #bbb;
    border-radius: 0;
    font-family: inherit;
    font-size: 12px;
    color: #222;
    cursor: pointer;
    text-align: center;
    line-height: 1.4;
    user-select: none;
}

    .old-btn:hover {
        background: #f0f0f0;
    }

    .old-btn:active {
        border-style: inset;
    }

    .old-btn:disabled {
        color: #999;
        cursor: not-allowed;
        background: #eee;
        border-color: #ccc;
    }

.old-btn-primary {
    background: #1a3a6b;
    border: 2px outset #4a6fa5;
    color: #fff;
}

    .old-btn-primary:hover {
        background: #2a4a7b;
    }

.old-btn-danger {
    background: #a00;
    border: 2px outset #c33;
    color: #fff;
}

    .old-btn-danger:hover {
        background: #c00;
    }

/* ============================================================
   10. 访客登记页
   ============================================================ */
.welcome-box {
    width: 600px;
    max-width: 94vw;
    margin: 60px auto;
    background: #f4f4f4;
    border: 2px solid #888;
    text-align: left;
    animation: boxIn 0.6s ease;
}

@keyframes boxIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.welcome-title {
    background: #1a3a6b;
    background-image: linear-gradient(to bottom, #4a6fa5 0%, #1a3a6b 100%);
    color: #fff;
    padding: 8px 14px;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 0.05em;
    border-bottom: 1px solid #0d1b3e;
}

.welcome-body {
    padding: 18px 24px 24px;
    line-height: 1.9;
    font-size: 13px;
}

    .welcome-body label {
        display: inline-block;
        min-width: 76px;
        font-weight: bold;
        color: #333;
    }

    .welcome-body input[type="text"],
    .welcome-body input[type="email"],
    .welcome-body input[type="password"] {
        padding: 4px 8px;
        border: 1px solid #888;
        background: #fff;
        font-family: inherit;
        font-size: 13px;
        width: 240px;
        max-width: 70%;
    }

    .welcome-body input:focus {
        outline: 1px solid #1a3a6b;
    }

    .welcome-body img#captcha {
        vertical-align: middle;
        border: 1px solid #888;
        margin-right: 6px;
        cursor: pointer;
    }

.tiny {
    font-size: 11px;
    color: #999;
    margin-top: 3px;
    line-height: 1.5;
}

.msg {
    margin-top: 12px;
    color: #a00;
    font-weight: bold;
    min-height: 20px;
    font-size: 13px;
}

/* ============================================================
   11. 抖动
   ============================================================ */
.shake {
    animation: shake 0.5s cubic-bezier(.36, .07, .19, .97) both;
}

@keyframes shake {
    10%, 90% {
        transform: translateX(-2px);
    }

    20%, 80% {
        transform: translateX(4px);
    }

    30%, 50%, 70% {
        transform: translateX(-6px);
    }

    40%, 60% {
        transform: translateX(6px);
    }
}

/* ============================================================
   12. 帖子详情
   ============================================================ */
.post-detail {
    max-width: 760px;
    margin: 20px auto;
    background: #fff;
    border: 1px solid #aaa;
    padding: 0;
    text-align: left;
}

    .post-detail .post-head {
        background: #e0e0e0;
        background-image: linear-gradient(to bottom, #f4f4f4 0%, #e0e0e0 100%);
        border-bottom: 1px solid #aaa;
        padding: 8px 16px;
        font-size: 13px;
        font-weight: bold;
        color: #1a3a6b;
    }

    .post-detail .post-body {
        padding: 16px 20px;
        font-size: 13px;
        line-height: 2;
        color: #333;
        white-space: pre-wrap;
    }

    .post-detail .post-meta {
        font-size: 11px;
        color: #888;
        padding: 6px 16px;
        background: #fafafa;
        border-bottom: 1px dashed #ddd;
    }

.reply {
    padding: 10px 16px;
    border-bottom: 1px dashed #ddd;
    font-size: 12px;
    line-height: 1.9;
}

    .reply:last-child {
        border-bottom: none;
    }

.reply-floor {
    color: #1a3a6b;
    font-weight: bold;
}

.reply-time {
    color: #999;
    font-size: 11px;
}

.attachment-thumb {
    display: inline-block;
    border: 1px solid #888;
    padding: 3px;
    background: #f4f4f4;
    cursor: pointer;
    margin: 8px 0;
}

    .attachment-thumb img {
        display: block;
        max-width: 280px;
        max-height: 200px;
    }

.attachment-info {
    font-size: 11px;
    color: #666;
    margin-top: 4px;
}

/* ============================================================
   13. 通用弹窗
   ============================================================ */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99990;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

    .overlay.active {
        display: flex;
    }

.overlay-box {
    background: #f4f4f4;
    border: 2px solid #888;
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    font-family: inherit;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.overlay-title {
    background: #1a3a6b;
    background-image: linear-gradient(to bottom, #4a6fa5 0%, #1a3a6b 100%);
    color: #fff;
    padding: 7px 14px;
    font-weight: bold;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #0d1b3e;
}

    .overlay-title .x {
        cursor: pointer;
        width: 18px;
        height: 18px;
        line-height: 16px;
        text-align: center;
        background: #a00;
        border: 2px outset #c33;
        color: #fff;
        font-size: 11px;
        user-select: none;
    }

        .overlay-title .x:hover {
            background: #c00;
        }

.overlay-body {
    padding: 16px 20px;
    font-size: 13px;
    line-height: 1.9;
    flex: 1;
    overflow-y: auto;
    background: #fff;
    white-space: pre-wrap;
}

    .overlay-body input[type="text"],
    .overlay-body input[type="email"],
    .overlay-body input[type="password"],
    .overlay-body textarea {
        width: 100%;
        padding: 6px 10px;
        border: 1px solid #888;
        background: #fff;
        font-family: inherit;
        font-size: 13px;
    }

.overlay-footer {
    padding: 10px 20px;
    border-top: 1px solid #ccc;
    text-align: right;
    background: #ececec;
}

    .overlay-footer .old-btn {
        margin-left: 8px;
    }

/* ============================================================
   14. 深色模式（注意值 21+）
   ============================================================ */
body.dark-mode {
    background: #050505;
    color: #888;
}

    body.dark-mode .forum-wrap {
        background: #0a0a0a;
        border-color: #222;
    }

    body.dark-mode .forum-head {
        background: #1a0000;
        background-image: linear-gradient(to bottom, #3a0a0a 0%, #1a0000 48%, #0d0000 52%, #000 100%);
    }

    body.dark-mode .forum-nav {
        background: #0a0a0a;
        background-image: linear-gradient(to bottom, #151515 0%, #0a0a0a 100%);
        border-color: #222;
    }

        body.dark-mode .forum-nav a {
            color: #6a6;
            border-color: #1a1a1a;
        }

    body.dark-mode .forum-notice {
        background: #0a0a00;
        color: #aa6;
        border-color: #333;
    }

    body.dark-mode .forum-stats {
        background: #0a0a0a;
        color: #555;
        border-color: #1a1a1a;
    }

    body.dark-mode .post-table {
        background: #0a0a0a;
        border-color: #222;
    }

        body.dark-mode .post-table thead th {
            background: #151515;
            background-image: linear-gradient(to bottom, #1a1a1a 0%, #151515 100%);
            color: #6a6;
            border-color: #222;
        }

        body.dark-mode .post-table tbody td {
            border-color: #151515;
            color: #888;
        }

        body.dark-mode .post-table tbody tr:nth-child(even) td {
            background: #0f0f0f;
        }

        body.dark-mode .post-table tbody tr:hover td {
            background: #1a0505;
        }

        body.dark-mode .post-table .col-title a {
            color: #6a6;
        }

    body.dark-mode .forum-pager {
        background: #0a0a0a;
        border-color: #1a1a1a;
    }

        body.dark-mode .forum-pager a {
            background: #151515;
            color: #6a6;
            border-color: #222;
        }

    body.dark-mode .forum-footer {
        background: #080808;
        color: #444;
        border-color: #151515;
    }

    body.dark-mode .overlay-box {
        background: #0a0a0a;
        border-color: #333;
    }

    body.dark-mode .overlay-body {
        background: #0f0f0f;
        color: #888;
    }

    body.dark-mode .overlay-footer {
        background: #151515;
        border-color: #222;
    }

    body.dark-mode .old-btn {
        background: #1a1a1a;
        color: #888;
        border-color: #444;
    }

        body.dark-mode .old-btn:hover {
            background: #222;
        }

/* ============================================================
   15. 恐怖氛围
   ============================================================ */
.horror-scanlines {
    position: fixed;
    inset: 0;
    z-index: 9997;
    pointer-events: none;
    background: repeating-linear-gradient( 0deg, rgba(0, 0, 0, 0.08) 0px, rgba(0, 0, 0, 0.08) 1px, transparent 1px, transparent 3px );
    mix-blend-mode: multiply;
    opacity: 0.4;
}

.horror-vignette {
    position: fixed;
    inset: 0;
    z-index: 9996;
    pointer-events: none;
    background: radial-gradient( circle at 50% 50%, transparent 0%, transparent 45%, rgba(0, 0, 0, 0.12) 75%, rgba(0, 0, 0, 0.4) 100% );
    transition: background 0.4s ease;
}

.forum-wrap.attention-drift,
body.attention-drift .forum-wrap {
    animation: attentionDrift 45s ease-in-out infinite;
}

@keyframes attentionDrift {
    0%, 100% {
        transform: translate(0, 0);
    }

    25% {
        transform: translate(0.5px, -0.5px);
    }

    50% {
        transform: translate(-0.3px, 0.3px);
    }

    75% {
        transform: translate(0.2px, 0.5px);
    }
}

.forum-wrap.attention-critical,
body.attention-critical .forum-wrap {
    animation: criticalFlicker 8s linear infinite;
}

@keyframes criticalFlicker {
    0%, 91%, 100% {
        opacity: 1;
    }

    92% {
        opacity: 0.95;
    }

    93% {
        opacity: 1;
    }

    96% {
        opacity: 0.93;
    }

    97% {
        opacity: 1;
    }
}

.forum-wrap[data-attention-level="high"],
body[data-attention-level="high"] .forum-wrap {
    filter: brightness(0.95);
}

.forum-wrap[data-attention-level="very-high"],
body[data-attention-level="very-high"] .forum-wrap {
    filter: brightness(0.88);
}

.forum-wrap[data-attention-level="extreme"],
body[data-attention-level="extreme"] .forum-wrap {
    filter: brightness(0.8) contrast(1.05);
}



.forum-wrap.attention-breathing,
.forum-wrap.attention-breathing,
body.attention-breathing .forum-wrap {
    animation: attentionBreathing 6s ease-in-out infinite;
}

@keyframes attentionBreathing {
    0%, 100% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(0.97);
    }
}

#horrorTrailCanvas {
    pointer-events: none;
}

/* ============================================================
   16. 终端
   ============================================================ */
body.terminal {
    background: #000;
    color: #0f0;
    font-family: "Courier New", monospace;
    font-size: 15px;
    padding: 24px;
    min-height: 100vh;
    line-height: 1.7;
    text-align: left;
}

    body.terminal input {
        background: transparent;
        border: none;
        color: #0f0;
        font-family: inherit;
        font-size: inherit;
        outline: none;
        width: 70%;
    }

    body.terminal .err {
        color: #f44;
    }

    body.terminal .warn {
        color: #fc0;
    }

/* ============================================================
   17. 404 页
   ============================================================ */
.e404-box {
    width: 560px;
    max-width: 94vw;
    margin: 80px auto;
    background: #f4f4f4;
    border: 2px solid #888;
    font-family: inherit;
    padding: 30px 36px;
    text-align: left;
}

    .e404-box h1 {
        color: #1a3a6b;
        font-size: 20px;
        margin: 0 0 14px;
        border-bottom: 1px dashed #aaa;
        padding-bottom: 10px;
    }

    .e404-box .path {
        font-family: "Courier New", monospace;
        color: #a00;
        font-size: 13px;
        margin-bottom: 16px;
    }

    .e404-box .msg {
        font-size: 14px;
        line-height: 2;
        white-space: pre-wrap;
        color: #333;
        margin-bottom: 20px;
    }

/* ============================================================
   18. 私信
   ============================================================ */
.pm-window {
    width: 640px;
    max-width: 96vw;
    margin: 30px auto;
    background: #f4f4f4;
    border: 2px solid #888;
    font-family: inherit;
    display: flex;
    flex-direction: column;
    height: 78vh;
    min-height: 480px;
    text-align: left;
}

.pm-title {
    background: #1a3a6b;
    background-image: linear-gradient(to bottom, #4a6fa5 0%, #1a3a6b 100%);
    color: #fff;
    padding: 8px 14px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

    .pm-title .status {
        font-size: 11px;
        font-weight: normal;
        color: #cfd;
    }

        .pm-title .status.warn {
            color: #fc6;
        }

        .pm-title .status.danger {
            color: #f99;
        }

    .pm-title .who {
        display: flex;
        align-items: center;
        gap: 8px;
    }

        .pm-title .who .avatar {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #c33;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            overflow: hidden;
        }

            .pm-title .who .avatar img {
                width: 24px;
                height: 24px;
                border-radius: 50%;
                object-fit: cover;
            }

.pm-header {
    background: #e8e8e8;
    padding: 6px 14px;
    font-size: 11px;
    color: #666;
    border-bottom: 1px solid #ccc;
    line-height: 1.6;
}

.pm-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 18px;
    background: #fafafa;
    font-size: 13px;
    line-height: 1.9;
}

.pm-msg {
    margin-bottom: 10px;
    word-break: break-word;
}

    .pm-msg .who {
        font-weight: bold;
        color: #1a3a6b;
        margin-right: 6px;
    }

    .pm-msg.from-lin .who {
        color: #a00;
    }

    .pm-msg.from-me {
        text-align: right;
    }

        .pm-msg.from-me .who {
            color: #666;
        }

        .pm-msg.from-me .txt {
            display: inline-block;
            background: #e0e8f0;
            padding: 4px 10px;
            border-radius: 4px;
            text-align: left;
            max-width: 80%;
        }

    .pm-msg.from-lin .txt {
        display: inline-block;
        background: #f0e0e0;
        padding: 4px 10px;
        border-radius: 4px;
        max-width: 80%;
    }

    .pm-msg .time {
        font-size: 10px;
        color: #999;
        margin-left: 6px;
    }

.pm-input {
    border-top: 1px solid #ccc;
    background: #eee;
    padding: 8px 12px;
    display: flex;
    gap: 8px;
    align-items: center;
}

    .pm-input input {
        flex: 1;
        padding: 6px 10px;
        border: 1px solid #888;
        background: #fff;
        font-family: inherit;
        font-size: 13px;
    }

        .pm-input input:disabled {
            background: #ddd;
            color: #888;
        }

.pm-archived-banner {
    background: #a00;
    color: #fff;
    text-align: center;
    padding: 4px;
    font-size: 12px;
    display: none;
}

    .pm-archived-banner.show {
        display: block;
    }

/* ============================================================
   19. 归档者页
   ============================================================ */
.node-box {
    width: 720px;
    max-width: 96vw;
    margin: 30px auto;
    background: #f4f4f4;
    border: 2px solid #888;
    font-family: inherit;
    padding: 20px 26px 26px;
    transition: background 1s ease, border-color 1s ease;
    text-align: left;
}

body.deep-dark .node-box {
    background: #141414;
    border-color: #444;
}

.node-card {
    display: flex;
    gap: 14px;
    padding: 12px 14px;
    border: 1px solid #ccc;
    background: #fafafa;
    cursor: pointer;
    transition: all 0.3s ease;
    align-items: center;
    margin-bottom: 8px;
}

    .node-card:hover {
        background: #eee;
        border-color: #888;
    }

body.deep-dark .node-card {
    background: #1a1a1a;
    border-color: #333;
    color: #888;
}

.node-card.read {
    opacity: 0.55;
}

.node-card.expanded {
    border-color: #1a3a6b;
    background: #fff;
}

body.deep-dark .node-card.expanded {
    background: #101010;
    border-color: #6a6;
}

.node-card .avatar {
    width: 60px;
    height: 60px;
    background: #ddd;
    border: 1px solid #888;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #666;
    overflow: hidden;
}

    .node-card .avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

.node-card .info {
    flex: 1;
    min-width: 0;
}

    .node-card .info .who {
        font-weight: bold;
        color: #1a3a6b;
        font-size: 14px;
        margin-bottom: 4px;
    }

body.deep-dark .node-card .info .who {
    color: #6a6;
}

.node-card .info .msg {
    color: #444;
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 4px;
    word-break: break-word;
}

body.deep-dark .node-card .info .msg {
    color: #888;
}

.node-card .info .time {
    font-size: 11px;
    color: #999;
}

.node-card .side-hint {
    font-family: "Courier New", monospace;
    font-size: 10px;
    color: #999;
    flex-shrink: 0;
    text-align: right;
}

.node-detail {
    display: none;
    padding: 12px 16px;
    background: #fff;
    border: 1px solid #ccc;
    border-top: none;
    font-size: 13px;
    line-height: 2;
    white-space: pre-wrap;
    color: #333;
    font-family: "SimSun", "宋体", serif;
    margin-bottom: 8px;
}

.node-card.expanded + .node-detail {
    display: block;
}

body.deep-dark .node-detail {
    background: #111;
    border-color: #333;
    color: #888;
}

/* ============================================================
   20. 无限页
   ============================================================ */
body.infinity {
    background: #fff;
    color: #000;
    font-family: "SimSun", "宋体", serif;
    font-size: 18px;
}

    body.infinity #stream {
        padding: 20px 10vw;
        line-height: 2.4;
    }

    body.infinity .line {
        white-space: pre-wrap;
    }

    body.infinity .tail {
        padding: 40px 10vw;
        color: #999;
        font-size: 14px;
    }

/* ============================================================
   21. 工具类
   ============================================================ */
.center {
    text-align: center;
}

.hidden {
    display: none !important;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

/* ============================================================
   22. 页面背景（使用你做的图）
   ============================================================ */
body.welcome-page {
    background-image: url('../img/welcome_bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body.page404-page {
    background-image: url('../img/404_bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body.terminal-page {
    background-image: url('../img/terminal_bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-color: #000;
}

body.page43-page {
    background-color: #000;
    background-image: url('../img/page43.jpg');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

    body.page43-page::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.85);
        z-index: 0;
        pointer-events: none;
    }

/* ============================================================
   23. 头像
   ============================================================ */
.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.forum-head .head-right .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.2);
    vertical-align: middle;
    margin-right: 6px;
}

/* ============================================================
   24. 结局背景
   ============================================================ */
.ending-bg-white,
.ending-bg-lookback,
.ending-bg-remembered,
.ending-bg-archive {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.ending-bg-white {
    background-image: url('../img/white_page.jpg');
    background-color: #fff;
}

.ending-bg-lookback {
    background-image: url('../img/look_back.jpg');
    background-color: #000;
}

.ending-bg-remembered {
    background-image: url('../img/remembered.jpg');
    background-color: #000;
}

.ending-bg-archive {
    background-image: url('../img/archive_full.jpg');
    background-color: #000;
}

/* ============================================================
   25. 图片查看器叠加手图
   ============================================================ */
.viewer-hand-overlay {
    position: absolute;
    inset: 0;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 10;
}

    .viewer-hand-overlay.show {
        opacity: 1;
    }

/* ============================================================
   26. 全屏提示条
   ============================================================ */
.fullscreen-hint {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1a3a6b;
    color: #fff;
    text-align: center;
    padding: 6px 14px;
    font-size: 11px;
    font-family: "SimSun", "宋体", serif;
    z-index: 99999;
    display: none;
    border-top: 2px solid #0d1b3e;
}

    .fullscreen-hint.show {
        display: block;
        animation: hintSlideUp 0.4s ease;
    }

@keyframes hintSlideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

.fullscreen-hint .hint-btn {
    display: inline-block;
    margin-left: 10px;
    padding: 2px 12px;
    background: #4a6fa5;
    color: #fff;
    border: 2px outset #6a8fc5;
    cursor: pointer;
    font-size: 11px;
    font-family: inherit;
}

    .fullscreen-hint .hint-btn:hover {
        background: #5a7fb5;
    }

/* ============================================================
   27. 响应式
   ============================================================ */
@media (max-width: 1000px) {
    .forum-wrap {
        width: 98vw;
        margin: 4px auto;
    }

    .forum-head .head-logo {
        width: 320px;
    }
}

@media (max-width: 768px) {
    .forum-head {
        height: 56px;
    }

        .forum-head .head-logo {
            width: 220px;
            height: 44px;
            margin: 6px 8px;
        }

        .forum-head .head-right {
            font-size: 10px;
            padding: 4px 8px;
        }

    .forum-nav {
        height: auto;
        flex-wrap: wrap;
    }

        .forum-nav a {
            padding: 6px 10px;
            font-size: 11px;
        }

    .post-table {
        font-size: 11px;
    }

        .post-table thead th,
        .post-table tbody td {
            padding: 5px 6px;
        }

    .welcome-box {
        margin: 20px auto;
        padding: 0;
    }

    .welcome-body {
        padding: 14px 16px 18px;
    }

        .welcome-body input {
            width: 100%;
            max-width: 100%;
        }

    .overlay-box {
        max-width: 96vw;
    }

    .pm-window {
        height: auto;
        min-height: 0;
    }
}

@media (max-width: 480px) {
    .forum-head .head-logo {
        width: 160px;
        height: 36px;
    }

    .forum-head .head-right .user-info {
        font-size: 10px;
    }

    .fullscreen-hint {
        font-size: 10px;
        padding: 4px 8px;
    }
}
/* ============================================================
   手机竖屏拦截（全站）
   ============================================================ */
@media (max-width: 600px) and (orientation: portrait) {
    body::after {
        content: '请横屏访问';
        position: fixed;
        inset: 0;
        background: #000;
        color: #eee;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "SimSun", "宋体", serif;
        font-size: 20px;
        z-index: 9999999;
        letter-spacing: 0.2em;
        text-align: center;
        padding: 30px;
        line-height: 2;
    }
}

/* ============================================================
   Discuz! 7.0 仿真 · 核心样式
   ============================================================ */

/* 论坛主体容器 */
.forum-wrap {
    width: 960px;
    max-width: 98vw;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #c8c8c8;
    text-align: left;
    position: relative;
}

/* 页头 */
.forum-head {
    display: flex;
    align-items: center;
    height: 68px;
    background: #f2f2f2;
    background-image: linear-gradient(to bottom, #f7f7f7 0%, #efefef 50%, #e0e0e0 51%, #f0f0f0 100%);
    border-bottom: 1px solid #c8c8c8;
    padding: 0 12px;
}

    .forum-head .head-logo {
        width: 468px;
        height: 60px;
        margin-right: 10px;
        background: url('../img/logo.svg') no-repeat left center;
        background-size: contain;
        flex-shrink: 0;
    }

    .forum-head .head-right {
        flex: 1;
        font-size: 12px;
        color: #333;
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 3px;
        line-height: 1.5;
    }

        .forum-head .head-right .user-info {
            font-size: 12px;
        }

            .forum-head .head-right .user-info a {
                color: #1a3a6b;
                text-decoration: none;
            }

                .forum-head .head-right .user-info a:hover {
                    text-decoration: underline;
                    color: #c00;
                }

/* 顶部按钮 */
.forum-top-buttons {
    display: flex;
    gap: 6px;
    font-size: 12px;
}

    .forum-top-buttons a {
        padding: 3px 10px;
        border: 1px solid #aaa;
        background: #fff;
        background-image: linear-gradient(to bottom, #fff 0%, #eee 100%);
        color: #1a3a6b;
        text-decoration: none;
        font-size: 12px;
    }

        .forum-top-buttons a:hover {
            background: #fff8d0;
            text-decoration: none;
        }

/* 导航栏 */
.forum-nav {
    background: #e0e0e0;
    background-image: linear-gradient(to bottom, #f4f4f4 0%, #e0e0e0 50%, #d8d8d8 51%, #cfcfcf 100%);
    border-bottom: 1px solid #aaa;
    padding: 0;
    display: flex;
    height: 30px;
    align-items: stretch;
    font-size: 12px;
    flex-wrap: wrap;
}

    .forum-nav a {
        padding: 0 16px;
        height: 100%;
        display: flex;
        align-items: center;
        color: #1a3a6b;
        text-decoration: none;
        border-right: 1px solid #bbb;
        position: relative;
        font-family: "SimSun", "宋体", serif;
    }

        .forum-nav a:first-child {
            border-left: 1px solid #bbb;
        }

        .forum-nav a:hover {
            background: #fff;
            text-decoration: none;
            color: #c00;
        }

        .forum-nav a.active {
            background: #fff;
            font-weight: bold;
            border-bottom: 1px solid #fff;
            margin-bottom: -1px;
        }

/* 面包屑 */
.forum-crumb {
    padding: 8px 14px;
    background: #fafafa;
    border-bottom: 1px solid #ddd;
    font-size: 12px;
    color: #666;
}

    .forum-crumb a {
        color: #1a3a6b;
        text-decoration: none;
    }

        .forum-crumb a:hover {
            text-decoration: underline;
        }

    .forum-crumb .sep {
        color: #aaa;
        margin: 0 4px;
    }

/* 公告条 */
.forum-notice {
    background: #fffce8;
    border-bottom: 1px solid #d8c878;
    padding: 6px 14px;
    font-size: 12px;
    color: #665500;
}

/* 统计条 */
.forum-stats {
    background: #efefef;
    border-bottom: 1px solid #ddd;
    padding: 6px 14px;
    font-size: 11px;
    color: #666;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

    .forum-stats .stat-item {
        display: inline-block;
        margin-right: 16px;
    }

        .forum-stats .stat-item b {
            color: #1a3a6b;
        }

/* 版块表格 */
.forum-board-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-bottom: 1px solid #c8c8c8;
}

    .forum-board-table thead th {
        background: #f2f2f2;
        background-image: linear-gradient(to bottom, #f7f7f7 0%, #efefef 100%);
        border-bottom: 1px solid #c8c8c8;
        border-right: 1px solid #ddd;
        padding: 6px 10px;
        text-align: left;
        font-weight: bold;
        color: #333;
        font-size: 12px;
        white-space: nowrap;
    }

        .forum-board-table thead th:last-child {
            border-right: none;
        }

    .forum-board-table tbody td {
        padding: 8px 10px;
        border-bottom: 1px solid #e8e8e8;
        vertical-align: top;
        font-size: 12px;
        color: #333;
    }

    .forum-board-table tbody tr:nth-child(even) td {
        background: #f8f8f8;
    }

    .forum-board-table tbody tr:hover td {
        background: #fff8d0;
    }

    .forum-board-table .board-icon {
        width: 32px;
        height: 32px;
        float: left;
        margin-right: 10px;
        background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><rect width="32" height="32" fill="%23e0e0e0" stroke="%23aaa"/><text x="16" y="22" font-family="SimSun" font-size="16" fill="%231a3a6b" text-anchor="middle">板</text></svg>') no-repeat center center;
        background-size: contain;
    }

        .forum-board-table .board-icon.hot {
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="32" height="32" viewBox="0 0 32 32"><rect width="32" height="32" fill="%23f0e0e0" stroke="%23a33"/><text x="16" y="22" font-family="SimSun" font-size="16" fill="%23a33" text-anchor="middle">火</text></svg>') no-repeat center center;
            background-size: contain;
        }

    .forum-board-table .board-name {
        font-weight: bold;
        font-size: 13px;
        margin-bottom: 2px;
    }

        .forum-board-table .board-name a {
            color: #1a3a6b;
            text-decoration: none;
        }

            .forum-board-table .board-name a:hover {
                color: #c00;
                text-decoration: underline;
            }

    .forum-board-table .board-desc {
        color: #666;
        font-size: 11px;
        margin-bottom: 2px;
    }

    .forum-board-table .board-mods {
        color: #999;
        font-size: 11px;
    }

        .forum-board-table .board-mods a {
            color: #1a3a6b;
            text-decoration: none;
        }

    .forum-board-table .board-stat {
        text-align: center;
        white-space: nowrap;
        width: 80px;
    }

    .forum-board-table .board-last {
        width: 160px;
        font-size: 11px;
        color: #666;
    }

/* 主题列表 */
.post-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-bottom: 1px solid #c8c8c8;
    font-size: 12px;
}

    .post-table thead th {
        background: #f2f2f2;
        background-image: linear-gradient(to bottom, #f7f7f7 0%, #efefef 100%);
        border-bottom: 1px solid #c8c8c8;
        border-right: 1px solid #ddd;
        padding: 6px 10px;
        text-align: left;
        font-weight: bold;
        color: #333;
        white-space: nowrap;
    }

        .post-table thead th:last-child {
            border-right: none;
        }

    .post-table tbody td {
        padding: 6px 10px;
        border-bottom: 1px solid #e8e8e8;
        vertical-align: middle;
    }

    .post-table tbody tr:nth-child(even) td {
        background: #f8f8f8;
    }

    .post-table tbody tr:hover td {
        background: #fff8d0;
    }

    .post-table .col-icon {
        width: 22px;
        text-align: center;
    }

    .post-table .col-title a {
        color: #1a3a6b;
        text-decoration: none;
        font-size: 12px;
    }

        .post-table .col-title a:hover {
            color: #c00;
            text-decoration: underline;
        }

    .post-table .col-title .prefix {
        color: #c33;
        font-size: 11px;
        margin-right: 4px;
    }

    .post-table .col-title .sticky-title {
        font-weight: bold;
    }

    .post-table .col-title .hot {
        color: #c33;
        font-size: 11px;
        margin-right: 4px;
    }

.thread-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    line-height: 16px;
    font-size: 10px;
    text-align: center;
    font-family: "Courier New", monospace;
    background: #ccc;
    color: #fff;
}

    .thread-icon.sticky {
        background: #c80;
    }

    .thread-icon.locked {
        background: #888;
    }

    .thread-icon.unknown {
        background: #111;
        animation: unknownPulse 2.5s ease-in-out infinite;
    }

@keyframes unknownPulse {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.25;
    }
}

/* 分页 */
.forum-pager {
    text-align: center;
    padding: 10px;
    background: #f4f4f4;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #c8c8c8;
    font-size: 12px;
}

    .forum-pager a,
    .forum-pager span,
    .forum-pager strong {
        display: inline-block;
        padding: 2px 8px;
        margin: 0 2px;
        border: 1px solid #bbb;
        background: #fff;
        background-image: linear-gradient(to bottom, #fff 0%, #eee 100%);
        color: #1a3a6b;
        text-decoration: none;
        font-size: 12px;
    }

    .forum-pager .current,
    .forum-pager strong {
        background: #1a3a6b;
        background-image: linear-gradient(to bottom, #4a6fa5 0%, #1a3a6b 100%);
        color: #fff;
        border-color: #0d1b3e;
        font-weight: bold;
    }

    .forum-pager a:hover {
        background: #fff8d0;
        text-decoration: none;
    }

/* 在线用户栏 */
.forum-online {
    padding: 8px 14px;
    background: #fafafa;
    border-top: 1px solid #ddd;
    font-size: 11px;
    color: #666;
    line-height: 1.8;
}

    .forum-online b {
        color: #1a3a6b;
    }

/* 图例 */
.forum-legend {
    padding: 8px 14px;
    background: #fff;
    border-top: 1px solid #ddd;
    font-size: 11px;
    color: #666;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

    .forum-legend .legend-item {
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }

    .forum-legend .legend-icon {
        display: inline-block;
        width: 14px;
        height: 14px;
        font-size: 10px;
        line-height: 14px;
        text-align: center;
        color: #fff;
    }

        .forum-legend .legend-icon.new {
            background: #4a6fa5;
        }

        .forum-legend .legend-icon.hot {
            background: #c33;
        }

        .forum-legend .legend-icon.locked {
            background: #888;
        }

/* 快速回复 */
.forum-fast-reply {
    padding: 10px 14px;
    background: #f4f4f4;
    border-top: 1px solid #ddd;
}

    .forum-fast-reply .fr-title {
        font-size: 12px;
        font-weight: bold;
        color: #1a3a6b;
        margin-bottom: 6px;
    }

    .forum-fast-reply textarea {
        width: 100%;
        height: 60px;
        padding: 6px 10px;
        border: 1px solid #888;
        font-family: "SimSun", "宋体", serif;
        font-size: 12px;
        resize: vertical;
    }

    .forum-fast-reply .fr-btn-row {
        margin-top: 6px;
        text-align: right;
    }

/* 页脚 */
.forum-footer {
    background: #f2f2f2;
    border-top: 1px solid #c8c8c8;
    padding: 12px 14px;
    text-align: center;
    font-size: 11px;
    color: #666;
    line-height: 1.8;
}

    .forum-footer a {
        color: #1a3a6b;
        text-decoration: none;
        margin: 0 4px;
    }

        .forum-footer a:hover {
            text-decoration: underline;
            color: #c00;
        }

    .forum-footer .footer-line {
        margin-top: 4px;
    }

        .forum-footer .footer-line b {
            color: #1a3a6b;
        }

    .forum-footer .footer-time {
        color: #999;
        font-family: "Courier New", monospace;
        font-size: 11px;
    }

/* ============================================================
   系统介入动画
   ============================================================ */
@keyframes sysPulse {
    0%, 100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

@keyframes sysGlitchShake {
    0% {
        transform: translate(0, 0);
    }

    25% {
        transform: translate(-1px, 1px);
    }

    50% {
        transform: translate(1px, -1px);
    }

    75% {
        transform: translate(-1px, -1px);
    }

    100% {
        transform: translate(0, 0);
    }
}

@keyframes sysBubbleIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

#sysWrap {
    transition: opacity 0.6s ease;
}

#sysStatus {
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* ============================================================
   私信闪现
   ============================================================ */
#pmFlash {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: #000;
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

    #pmFlash.show {
        display: flex;
    }

    #pmFlash .flash-img {
        max-width: 60%;
        max-height: 60%;
        filter: contrast(1.5) brightness(0.8);
    }

    #pmFlash .flash-text {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        color: #a00;
        font-family: "SimSun", "宋体", serif;
        font-size: 48px;
        font-weight: bold;
        letter-spacing: 8px;
        text-shadow: 0 0 20px rgba(160, 0, 0, 0.8);
        white-space: nowrap;
    }

/* ============================================================
   私信图片消息
   ============================================================ */
.pm-msg .txt img {
    max-width: 100%;
    max-height: 260px;
    border: 1px solid #888;
    background: #fff;
    padding: 3px;
    display: block;
    margin: 4px 0;
    cursor: pointer;
}

.pm-msg .txt .recalled {
    color: #999;
    font-style: italic;
    font-size: 12px;
}

/* ============================================================
   节点头像印章
   ============================================================ */
.node-card .avatar {
    position: relative;
    overflow: visible;
}

.node-stamp {
    position: absolute;
    right: -8px;
    bottom: -8px;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 1.5px solid #a00;
    border-radius: 50%;
    color: #a00;
    font-family: "SimSun", "宋体", serif;
    font-size: 11px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-18deg);
    opacity: 0.9;
    pointer-events: none;
    z-index: 10;
    box-shadow: 0 0 4px rgba(160, 0, 0, 0.25);
}

    .node-stamp.unarchived {
        border-color: #888;
        color: #888;
        background: rgba(255, 255, 255, 0.75);
    }

body.deep-dark .node-stamp {
    background: rgba(0, 0, 0, 0.65);
    border-color: #a33;
    color: #a33;
}

    body.deep-dark .node-stamp.unarchived {
        border-color: #666;
        color: #666;
    }

/* ============================================================
   移动端
   ============================================================ */
@media (max-width: 1000px) {
    .forum-wrap {
        width: 98vw;
        margin: 4px auto;
    }

    .forum-head .head-logo {
        width: 320px;
    }
}

@media (max-width: 768px) {
    .forum-head {
        height: 56px;
    }

        .forum-head .head-logo {
            width: 220px;
            height: 44px;
            margin: 6px 8px;
        }

        .forum-head .head-right {
            font-size: 10px;
            padding: 4px 8px;
        }

    .forum-nav {
        height: auto;
    }

        .forum-nav a {
            padding: 6px 10px;
            font-size: 11px;
        }

    .post-table {
        font-size: 11px;
    }

        .post-table thead th, .post-table tbody td {
            padding: 5px 6px;
        }

    .forum-board-table .board-icon {
        width: 24px;
        height: 24px;
    }

    .forum-board-table .board-name {
        font-size: 12px;
    }

    .forum-board-table .board-desc {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .forum-head .head-logo {
        width: 160px;
        height: 36px;
    }
}