:root {
    --bg-paper: #e8dcc8;
    --bg-paper-dark: #d4c5a9;
    --bg-card: #faf5ea;
    --bg-card-header: #4a3828;
    --bg-card-header-text: #f5ead0;
    --text-main: #3a2e22;
    --text-secondary: #6b5a48;
    --text-muted: #9a8a72;
    --border-main: #4a3828;
    --border-light: #c4b8a0;
    --accent-amber: #c8943a;
    --accent-green: #5a8a3a;
    --accent-red: #a04830;
    --link-blue: #5a7aa0;
    --nav-bg: #3d2e1f;
    --nav-text: #f0e3c0;
    --nav-hover-bg: #c8943a;
    --nav-hover-text: #2b1f12;
    --transition: all 0.2s ease;
    --shadow-card: 2px 3px 0 rgba(74, 56, 40, 0.22);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Noto Serif SC", "STSong", "SimSun", serif;
    background: var(--bg-paper);
    color: var(--text-main);
    line-height: 1.7;
    font-size: 14px;
    background-image: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(74, 56, 40, 0.03) 2px, rgba(74, 56, 40, 0.03) 4px);
}

/* 复古滚动条 */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg-paper-dark); }
::-webkit-scrollbar-thumb { background: var(--border-main); border: 2px solid var(--bg-paper-dark); }
::-webkit-scrollbar-thumb:hover { background: var(--accent-amber); }

.pixel-font {
    font-family: "Press Start 2P", "Courier New", monospace;
    font-size: 12px;
    letter-spacing: 0.05em;
}

#crt-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(74, 56, 40, 0.015) 2px, rgba(74, 56, 40, 0.015) 4px);
}

/* ===== Header ===== */
header {
    background: var(--bg-card-header);
    border-top: 3px solid var(--accent-amber);
    border-bottom: 3px double var(--accent-amber);
    padding: 0;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.header-inner { max-width: 960px; margin: 0 auto; padding: 10px 24px; }

.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--bg-card-header-text);
    font-family: "Courier New", monospace;
    letter-spacing: 0.03em;
}

.header-left { flex: 1; }
.header-right { font-family: "Courier New", monospace; }

/* ===== Navigation ===== */
.forum-nav {
    max-width: 960px;
    margin: 0 auto;
    padding: 7px 24px;
    background: var(--nav-bg);
    border-top: 2px solid var(--accent-amber);
    border-bottom: 3px solid var(--accent-amber);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.25);
    font-size: 13px;
    font-family: "Courier New", monospace;
    color: var(--nav-text);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.nav-item {
    padding: 5px 10px;
    border-radius: 2px;
    font-weight: bold;
    color: var(--nav-text);
    letter-spacing: 0.03em;
    transition: var(--transition);
    cursor: default;
}
.nav-item:hover { background: var(--nav-hover-bg); color: var(--nav-hover-text); }
.nav-item[onclick] { cursor: pointer; }
.nav-item[onclick]:active { transform: translateY(1px); }
.nav-sep { color: rgba(240, 227, 192, 0.35); font-weight: normal; }

/* 导航分区：弹性占位将状态信息推到右侧；状态项不可点击、弱化样式 */
.nav-spacer { flex: 1; }
.nav-item.nav-info { font-weight: normal; color: var(--text-muted); letter-spacing: 0; }
.nav-item.nav-info:hover { background: transparent; color: var(--text-muted); }
.nav-item.nav-info#visitorName { color: var(--accent-green); font-weight: bold; }

#onlineStatus { color: var(--accent-green); font-weight: bold; }
#onlineStatus.offline { color: var(--accent-red); }

/* 导航消息按钮 */
.reply-btn-nav { position: relative; }
.reply-btn-nav:hover .reply-badge { background: #fff; color: var(--accent-red); }

/* ===== Main ===== */
main { max-width: 960px; margin: 0 auto; padding: 12px 24px; }
.view { width: 100%; }

.forum-board {
    border: 2px solid var(--border-main);
    border-top: none;
    background: var(--bg-card);
    box-shadow: var(--shadow-card);
}

.board-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 14px;
    background: var(--bg-card-header);
    color: var(--bg-card-header-text);
    font-size: 13px;
    font-weight: bold;
    font-family: "Courier New", monospace;
    letter-spacing: 0.05em;
    border-bottom: 3px double var(--accent-amber);
}

/* ===== Thread List ===== */
.thread-list-header {
    display: flex;
    align-items: center;
    padding: 6px 14px;
    background: var(--bg-paper-dark);
    border-bottom: 2px solid var(--border-main);
    font-size: 11px;
    font-family: "Courier New", monospace;
    color: var(--text-secondary);
    font-weight: bold;
}

.thread-list-header .col-status { width: 28px; flex-shrink: 0; }
.thread-list-header .col-title { flex: 1; padding: 0 10px; min-width: 0; }
.thread-list-header .col-replies { width: 50px; text-align: center; flex-shrink: 0; }
.thread-list-header .col-author { width: 80px; text-align: center; flex-shrink: 0; }
.thread-list-header .col-last { width: 140px; text-align: center; flex-shrink: 0; }

/* 可排序列头（Finder 风格：点击切换升/降序） */
.thread-list-header .sortable { cursor: pointer; user-select: none; }
.thread-list-header .sortable:hover { color: var(--accent-red); }
.sort-indicator { font-size: 10px; color: var(--text-muted); }
.sort-indicator.active { color: var(--accent-red); font-weight: bold; }
.sort-hint { font-size: 10px; color: var(--text-muted); font-family: "Courier New", monospace; letter-spacing: 0.05em; }

.thread-row {
    display: flex;
    align-items: center;
    padding: 9px 14px;
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
    border-left: 3px solid transparent;
}

.thread-row:nth-child(even) { background: rgba(212, 197, 169, 0.15); }
.thread-row:hover { background: var(--bg-paper-dark); border-left-color: var(--accent-amber); padding-left: 16px; }

.thread-row .col-status { width: 28px; flex-shrink: 0; text-align: center; }
.thread-row .hot-icon { color: var(--accent-red); font-size: 10px; font-family: "Courier New", monospace; font-weight: bold; }
.thread-row .col-title { flex: 1; padding: 0 10px; overflow: hidden; min-width: 0; }
.thread-row .thread-topic { color: var(--text-main); font-weight: bold; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.thread-row .thread-topic:hover { color: var(--accent-red); }
.thread-row .col-replies { width: 50px; text-align: center; flex-shrink: 0; color: var(--accent-red); font-family: "Courier New", monospace; font-weight: bold; }
.thread-row .col-author { width: 80px; text-align: center; flex-shrink: 0; font-family: "STSong", "SimSun", serif; color: var(--text-secondary); font-size: 12px; }
.thread-row .col-last { width: 140px; text-align: center; flex-shrink: 0; font-family: "Courier New", monospace; font-size: 11px; color: var(--text-muted); }

/* 搜索匹配片段 */
.search-snippet {
    display: flex; align-items: baseline; gap: 6px;
    padding: 4px 20px 6px 48px;
    background: #f0e6cc; border-left: 3px solid var(--accent-red);
    font-size: 12px; cursor: pointer; border-bottom: 1px solid var(--border-light);
    font-family: "STSong", "SimSun", serif;
}
.search-snippet:hover { background: #e6d4a8; }
.search-snippet-label { color: var(--accent-red); font-weight: bold; font-size: 10px; font-family: "Courier New", monospace; flex-shrink: 0; }
.search-snippet-author { color: var(--text-secondary); font-size: 11px; flex-shrink: 0; }
.search-snippet-text { color: var(--text-main); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-snippet-text mark { background: #ffe066; color: var(--accent-red); font-weight: bold; padding: 0 2px; border-radius: 2px; }

/* 帖子内跳转链接（→ 藏书阁 / 人物档案） */
.link-jump {
    color: var(--accent-green); cursor: pointer;
    text-decoration: underline dotted;
    text-underline-offset: 3px;
    transition: var(--transition);
}
.link-jump:hover { color: var(--accent-red); background: rgba(212, 160, 23, 0.15); }

/* 一键返回原帖条（位于 main 内各视图顶部） */
.jump-back-bar {
    padding: 0 0 8px;
    display: flex; align-items: center; gap: 10px;
    font-family: "Courier New", monospace; font-size: 12px;
}
.jump-back-btn {
    padding: 4px 12px;
    background: var(--bg-card-header); color: var(--bg-card-header-text);
    border: 1px solid var(--accent-amber); cursor: pointer;
    font-weight: bold; transition: var(--transition);
}
.jump-back-btn:hover { background: var(--accent-amber); color: #fff; }
.jump-back-topic { color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== Thread Detail ===== */
.thread-header { padding: 14px 20px; background: var(--bg-card-header); color: var(--bg-card-header-text); border-bottom: 2px solid var(--accent-amber); }
.thread-header h2 { font-size: 16px; font-weight: bold; margin-bottom: 4px; }
.thread-meta { font-size: 11px; font-family: "Courier New", monospace; color: rgba(245, 234, 208, 0.7); }
.messages-container { display: flex; flex-direction: column; }

.comment-section-header {
    text-align: center;
    padding: 8px 14px;
    background: var(--bg-paper-dark);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    font-size: 12px;
    font-family: "Courier New", monospace;
    color: var(--text-secondary);
    font-weight: bold;
}

/* Floor */
.floor { display: flex; padding: 0; border-bottom: 1px solid var(--border-light); min-height: 100px; }
.floor:last-child { border-bottom: none; }

.floor-avatar-col { width: 90px; flex-shrink: 0; padding: 12px 10px; text-align: center; background: var(--bg-paper-dark); border-right: 1px solid var(--border-light); }

.floor-avatar {
    width: 44px; height: 44px; border-radius: 2px;
    background: var(--bg-card-header); color: var(--bg-card-header-text);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; margin: 0 auto 6px; border: 2px solid var(--border-main);
    font-family: "STSong", "SimSun", serif;
}

.floor-avatar.user { background: var(--accent-red); }
.floor-name { font-size: 13px; font-weight: bold; color: var(--text-main); font-family: "STSong", "SimSun", serif; }
.floor-extra { font-size: 10px; color: var(--text-muted); margin-top: 2px; font-family: "Courier New", monospace; }
.floor-body { flex: 1; padding: 12px 16px; min-width: 0; }
.floor-info-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; padding-bottom: 6px; border-bottom: 1px dashed var(--border-light); }
.floor-number { font-family: "Courier New", monospace; font-size: 11px; color: var(--text-muted); font-weight: bold; }

.floor-tag { display: inline-block; font-size: 10px; padding: 1px 6px; border-radius: 2px; font-family: "Courier New", monospace; font-weight: bold; }
.floor-tag.author { background: var(--accent-red); color: #fff; }
.floor-tag.user { background: var(--accent-amber); color: #fff; }
.floor-tag.post { background: var(--accent-green); color: #fff; }
.floor-tag.question { background: var(--accent-blue, #4a6fa5); color: #fff; }
.floor-tag.statement { background: var(--text-muted); color: #fff; }

.floor-time { margin-left: auto; font-family: "Courier New", monospace; font-size: 10px; color: var(--text-muted); }
.floor-content { font-size: 14px; color: var(--text-main); line-height: 1.8; white-space: pre-wrap; font-family: "Noto Serif SC", "STSong", "SimSun", serif; }

.floor-quote { background: var(--bg-paper); border: 1px solid var(--border-light); border-left: 3px solid var(--accent-amber); padding: 8px 12px; margin-bottom: 10px; border-radius: 2px; }
.floor-quote .quote-label { font-size: 10px; color: var(--accent-red); font-weight: bold; font-family: "Courier New", monospace; margin-bottom: 4px; }
.floor-quote .quote-content { font-size: 12px; color: var(--text-secondary); font-style: italic; line-height: 1.5; }
/* 引用块可点击定位到原楼层 */
.floor-quote.quote-jump { cursor: pointer; transition: var(--transition); }
.floor-quote.quote-jump:hover { border-color: var(--accent-green); border-left-color: var(--accent-green); background: rgba(110, 155, 100, 0.08); }
.floor-quote.quote-jump:hover .quote-label { color: var(--accent-green); }

.floor-actions { display: flex; justify-content: flex-end; gap: 6px; margin-top: 8px; }

.reply-btn {
    display: inline-flex; align-items: center; gap: 4px;
    background: var(--bg-paper-dark); border: 1px solid var(--border-main);
    color: var(--text-main); font-size: 11px; font-family: "Courier New", monospace;
    cursor: pointer; padding: 3px 12px; border-radius: 2px;
    transition: var(--transition); font-weight: bold;
}
.reply-btn:hover { background: var(--bg-card-header); color: var(--bg-card-header-text); }
.reply-btn:active { transform: translateY(1px); }

/* ===== Reply Input ===== */
.reply-input-area { margin: 8px 0; padding: 10px; background: var(--bg-paper-dark); border: 1px solid var(--border-light); border-radius: 2px; }
.reply-input { width: 100%; min-height: 60px; border: 1px solid var(--border-main); border-radius: 2px; padding: 8px 10px; font-size: 13px; font-family: "Noto Serif SC", "STSong", "SimSun", serif; resize: vertical; background: #fffbf0; outline: none; color: var(--text-main); }
.reply-input:focus { border-color: var(--accent-amber); }
.reply-buttons { display: flex; justify-content: flex-end; gap: 6px; margin-top: 6px; }
.submit-reply, .cancel-reply { padding: 4px 14px; border-radius: 2px; font-size: 12px; font-family: "Courier New", monospace; cursor: pointer; transition: all 0.15s; font-weight: bold; }
.submit-reply { background: var(--bg-card-header); color: var(--bg-card-header-text); border: 1px solid var(--border-main); }
.submit-reply:hover { background: var(--accent-amber); }
.cancel-reply { background: var(--bg-card); color: var(--text-secondary); border: 1px solid var(--border-light); }
.cancel-reply:hover { background: var(--bg-paper-dark); }

/* ===== 分页导航 ===== */
.pagination-nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 8px 14px; background: var(--bg-paper-dark);
    border-top: 1px solid var(--border-light);
    font-size: 12px; font-family: "Courier New", monospace;
}

.comment-pagination { border-top: 2px solid var(--border-main); }

.page-info { color: var(--text-secondary); }
.page-links { display: flex; gap: 4px; align-items: center; }
.page-link {
    cursor: pointer; padding: 2px 8px; border: 1px solid var(--border-light);
    background: var(--bg-card); color: var(--link-blue); text-decoration: none;
    transition: all 0.1s; font-weight: bold;
}
.page-link:hover { background: var(--bg-card-header); color: var(--bg-card-header-text); border-color: var(--border-main); }
.page-link.current { background: var(--accent-red); color: #fff; border-color: var(--accent-red); cursor: default; }

/* ===== 消息中心页面 ===== */
.message-container { padding: 0; }

.reply-section-label {
    text-align: center; font-size: 12px; font-family: "Courier New", monospace;
    padding: 10px 0 6px; letter-spacing: 0.05em;
    background: var(--bg-paper-dark);
    border-bottom: 1px solid var(--border-light);
}
.reply-section-label.unread-label { color: var(--accent-red); font-weight: bold; }
.reply-section-label.read-label { color: var(--text-muted); }

.reply-item {
    padding: 12px 20px; border-bottom: 1px solid var(--border-light);
    cursor: pointer; transition: var(--transition);
}
.reply-item:hover { background: var(--bg-paper-dark); padding-left: 24px; }
.reply-item:last-child { border-bottom: none; }

.reply-item-unread {
    background: rgba(200, 148, 58, 0.06);
    border-left: 3px solid var(--accent-amber);
    padding-left: 17px !important;
}

.reply-unread-badge {
    display: inline-block; background: var(--accent-red); color: #fff;
    font-size: 9px; padding: 0 5px; margin-right: 4px; border-radius: 2px;
    font-family: "Courier New", monospace; vertical-align: middle; line-height: 1.5;
}

.reply-item-replier { font-size: 13px; font-weight: bold; color: var(--border-main); margin-bottom: 4px; }
.reply-item-content { font-size: 14px; color: var(--text-main); margin-bottom: 4px; line-height: 1.6; }
.reply-item-thread { font-size: 11px; color: var(--text-secondary); font-family: "Courier New", monospace; }
.reply-empty { text-align: center; padding: 30px 0; color: var(--text-secondary); font-size: 13px; }

/* ===== 消息按钮 Badge ===== */
.reply-btn-nav { position: relative !important; }
.reply-badge {
    position: absolute; top: -3px; right: -6px;
    background: var(--accent-red); color: #fff; font-size: 10px; font-weight: bold;
    padding: 1px 5px; border-radius: 8px; line-height: 1.3;
    font-family: "Courier New", monospace; min-width: 16px; text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.4);
    transition: var(--transition);
}

/* ===== 刷新按钮 ===== */
#refreshToken { cursor: pointer; font-size: 13px; font-weight: bold; color: var(--accent-amber); transition: var(--transition); padding: 5px 10px; border-radius: 2px; }
#refreshToken:hover { color: var(--nav-hover-text); background: var(--nav-hover-bg); transform: scale(1.05); }

/* ===== Loading ===== */
.loading { text-align: center; color: var(--text-secondary); font-size: 13px; font-family: "Courier New", monospace; padding: 30px 20px; background: var(--bg-card); }

/* ===== 搜索栏 ===== */
.search-bar {
    display: flex; align-items: center; gap: 6px; margin-bottom: 8px; padding: 8px 14px;
    background: var(--bg-paper-dark); border: 1px solid var(--border-main); border-bottom: 2px solid var(--border-main);
}
.search-input {
    flex: 1; padding: 4px 8px; border: 1px solid var(--border-main); background: #fffbf0;
    font-family: "Courier New", monospace; font-size: 13px; color: var(--text-main); outline: none;
}
.search-input:focus { border-color: var(--accent-amber); }
.search-btn {
    padding: 4px 10px; background: var(--bg-card-header); color: var(--bg-card-header-text);
    border: 1px solid var(--border-main); font-family: "Courier New", monospace; font-size: 12px;
    font-weight: bold; cursor: pointer; border-radius: 2px; transition: var(--transition);
}
.search-btn:hover { background: var(--accent-amber); color: var(--nav-hover-text); }
.search-btn:active { transform: translateY(1px); }

/* ===== 藏书阁 ===== */
.book-add-area { padding: 14px 20px; background: var(--bg-paper-dark); border-bottom: 1px solid var(--border-light); }
.book-add-title { text-align: center; font-size: 12px; font-family: "Courier New", monospace; color: var(--text-secondary); margin-bottom: 8px; font-weight: bold; }
.book-add-form { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.book-input {
    padding: 4px 8px; border: 1px solid var(--border-main); background: #fffbf0;
    font-family: "Courier New", monospace; font-size: 12px; color: var(--text-main); outline: none; min-width: 80px;
}
.book-input:focus { border-color: var(--accent-amber); }
.book-list-container { }
.book-row {
    display: flex; align-items: center; gap: 10px; padding: 8px 14px;
    border-bottom: 1px solid var(--border-light); font-size: 13px;
    background: var(--bg-card);
    transition: var(--transition);
}
.book-row:nth-child(even) { background: #efe3cc; }
.book-row:hover { background: #d4c09a; padding-left: 18px; }
.book-id { font-family: "Courier New", monospace; font-size: 11px; color: var(--text-muted); width: 40px; flex-shrink: 0; }
.book-title { font-weight: bold; color: var(--bg-card-header); flex: 1; }
.book-author { color: var(--text-main); font-size: 12px; width: 100px; flex-shrink: 0; font-weight: bold; }
.book-publisher { color: var(--text-secondary); font-size: 11px; width: 120px; flex-shrink: 0; }
.book-year { color: var(--text-secondary); font-size: 11px; width: 60px; flex-shrink: 0; font-family: "Courier New", monospace; }
.book-category { color: var(--accent-red); font-size: 11px; width: 80px; flex-shrink: 0; }

/* 书籍搜索结果 */
.book-search-list { border: 1px solid var(--border-light); background: #fffbf0; }
.book-search-item {
    display: flex; align-items: center; gap: 8px; padding: 6px 10px;
    border-bottom: 1px solid var(--border-light); cursor: pointer; transition: var(--transition);
}
.book-search-item:hover { background: #d4c09a; padding-left: 14px; }
.book-search-item:last-child { border-bottom: none; }
.book-search-title { font-weight: bold; color: var(--bg-card-header); flex: 1; font-size: 12px; }
.book-search-author { color: var(--text-main); font-size: 11px; font-weight: bold; flex: 2; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.book-search-year { color: var(--text-secondary); font-size: 11px; font-family: "Courier New", monospace; width: 50px; flex-shrink: 0; }
.book-search-source { color: var(--accent-red); font-size: 10px; font-family: "Courier New", monospace; flex-shrink: 0; font-weight: bold; }

/* 藏书列表展开详情 */
.book-row-wrap { border-bottom: 1px solid var(--border-light); }
.book-row-wrap:nth-child(even) .book-row { background: #efe3cc; }
.book-detail {
    padding: 12px 20px 14px 54px; background: #e8d8b8;
    border-top: 1px dashed var(--border-main); font-size: 12px;
}
.book-detail-line { color: var(--text-main); line-height: 1.8; font-family: "Courier New", monospace; }
.book-detail-line b { color: var(--bg-card-header); font-weight: bold; }
.book-detail-grid { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; }
.book-detail-key { color: var(--bg-card-header); font-weight: bold; white-space: nowrap; }
.book-detail-val { color: var(--text-main); }

/* 添加新书折叠区 */
.book-top-bar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 10px; gap: 12px;
}
.book-search-local {
    display: flex; gap: 8px; flex: 1;
}
.book-add-toggle-right {
    cursor: pointer; padding: 5px 12px; flex-shrink: 0;
    background: var(--bg-card-header); border: 1px solid var(--border-main);
    font-size: 12px; color: var(--accent-amber); font-family: "Courier New", monospace;
    transition: var(--transition); font-weight: bold;
}
.book-add-toggle-right:hover { background: var(--accent-red); color: #fff; }
.book-add-toggle-right:active { transform: translateY(1px); }

.book-add-collapse { margin-top: 14px; border-top: 2px dashed var(--border-main); padding-top: 10px; }
.book-add-area { margin-top: 8px; }

/* ===== Footer ===== */
footer {
    max-width: 960px; margin: 0 auto; text-align: center;
    padding: 20px 24px; font-size: 12px; color: var(--text-muted);
    font-family: "Courier New", monospace; line-height: 1.8;
    border-top: 1px dashed var(--border-light); margin-top: 12px;
}
.footer-tech { font-size: 11px; color: var(--border-light); margin-top: 4px; }

/* ===== 私信推荐弹窗 ===== */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5); z-index: 10000;
    display: flex; align-items: center; justify-content: center;
}

/* 帮助弹窗（复用 modal 结构，更宽、正文用宋体） */
.help-modal { max-width: 640px; }
.help-body { font-family: "STSong", "SimSun", serif; color: var(--text-main); line-height: 1.8; }
.help-section h3 { color: var(--accent-amber); margin: 12px 0 4px; font-size: 14px; font-family: "Courier New", monospace; letter-spacing: 0.05em; }
.help-section p, .help-section li { font-size: 13px; }
.help-section ul { padding-left: 20px; }
.modal-content {
    background: var(--bg-card); border: 3px solid var(--border-main);
    box-shadow: 4px 4px 0 rgba(74, 56, 40, 0.3);
    max-width: 520px; width: 90%; max-height: 85vh; overflow-y: auto;
}
.modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 16px; background: var(--bg-card-header);
    color: var(--bg-card-header-text);
    font-family: "Courier New", monospace; font-size: 14px; font-weight: bold;
}
.modal-close {
    cursor: pointer; color: var(--accent-amber);
    font-size: 14px; padding: 2px 8px;
}
.modal-close:hover { color: var(--accent-red); }
.modal-body { padding: 16px 20px; }
.rec-row { margin-bottom: 12px; }
.rec-row label {
    display: block; font-family: "Courier New", monospace; font-size: 12px;
    color: var(--text-secondary); margin-bottom: 4px; font-weight: bold;
}
.rec-select {
    width: 100%; padding: 6px 10px; border: 1px solid var(--border-main);
    background: #fffbf0; font-family: "Courier New", monospace; font-size: 13px;
    color: var(--text-main); outline: none;
}
.rec-select:focus { border-color: var(--accent-amber); }
.rec-filter-input {
    width: 100%; padding: 6px 10px; margin-bottom: 5px;
    border: 1px solid var(--border-main); background: #fffbf0;
    font-family: "Courier New", monospace; font-size: 12px;
    color: var(--text-main); outline: none;
}
.rec-filter-input:focus { border-color: var(--accent-amber); }
.rec-filter-hint { display: block; font-size: 10px; color: var(--text-muted); margin-top: 4px; font-family: "Courier New", monospace; }
.rec-textarea {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border-main);
    background: #fffbf0; font-family: "Noto Serif SC", "STSong", "SimSun", serif;
    font-size: 13px; color: var(--text-main); resize: vertical; outline: none;
}
.rec-textarea:focus { border-color: var(--accent-amber); }
.rec-actions { display: flex; align-items: center; gap: 8px; margin-top: 14px; }

.recommendation-item {
    background: rgba(200, 148, 58, 0.04);
    border-left: 3px solid var(--accent-amber);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    main { padding: 8px 12px; }
    .floor { flex-direction: column; }
    .floor-avatar-col { width: 100%; display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-right: none; border-bottom: 1px solid var(--border-light); }
    .floor-avatar { margin: 0; }
    /* 小屏单行 flex（禁止 wrap）：表头与数据行统一内边距与边框，固定列宽完全一致，保证逐列对齐 */
    .thread-list-header, .thread-row { padding: 6px 10px; }
    .thread-list-header { font-size: 9px; border-left: 3px solid transparent; }
    .thread-list-header .col-title { flex: 1; padding: 0 6px; }
    .thread-list-header .col-status { width: 20px; }
    .thread-list-header .col-replies { width: 36px; }
    .thread-list-header .col-author { width: 64px; }
    .thread-list-header .col-last { width: 100px; }
    .thread-row .col-title { flex: 1; padding: 0 6px; }
    .thread-row .col-status { width: 20px; }
    .thread-row .col-replies { width: 36px; }
    .thread-row .col-author { width: 64px; font-size: 9px; white-space: nowrap; overflow: hidden; }
    .thread-row .col-last { width: 100px; font-size: 8px; white-space: nowrap; overflow: hidden; }
    .thread-row:hover { padding-left: 10px; }
    .sort-indicator { font-size: 8px; }
    .sort-hint { font-size: 9px; }
    .pixel-font { font-size: 9px; }
}