/* ============================================
   粤剧文献知识库 - 中国古典风格样式
   ============================================ */

:root {
    --primary: #3B6B8A;
    --primary-dark: #2C5066;
    --primary-light: #E8F0F5;
    --accent: #C49A6C;
    --accent-dark: #A67D52;
    --bg: #FAF7F2;
    --card: #FFFFFF;
    --text: #2C2C2C;
    --text-sub: #777;
    --border: #E8E0D4;
    --shadow: 0 2px 12px rgba(59, 107, 138, 0.07);
    --radius: 6px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif SC', '宋体', 'SimSun', serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
}

/* --- 顶部导航 --- */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(135deg, #2C5066 0%, #3B6B8A 50%, #4A7D9E 100%);
    box-shadow: 0 2px 16px rgba(44, 80, 102, 0.25);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.app-logo {
    font-size: 20px;
    font-weight: 700;
    color: #FFF;
    letter-spacing: 3px;
    cursor: pointer;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.app-nav {
    display: flex;
    gap: 4px;
}

.nav-item {
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-item:hover {
    color: #FFF;
    background: rgba(255, 255, 255, 0.12);
}

.nav-item.active {
    color: #FFF;
    background: rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

/* --- 主内容 --- */
.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.page {
    animation: fadeIn .3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* --- 总览页 --- */
.hero-banner {
    text-align: center;
    padding: 40px 20px 30px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.hero-banner h2 {
    font-size: 26px;
    color: var(--primary-dark);
    letter-spacing: 6px;
    margin-bottom: 10px;
}

.hero-banner p {
    color: var(--text-sub);
    font-size: 14px;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--accent);
}

.stat-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-dark);
}

.stat-label {
    font-size: 13px;
    color: var(--text-sub);
    margin-top: 4px;
}

.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.chart-box {
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.chart-title {
    font-size: 15px;
    color: var(--primary-dark);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.chart-body {
    width: 100%;
    height: 280px;
}

.quick-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 30px;
}

.quick-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all .2s;
    border: 1px solid var(--border);
}

.quick-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(59, 107, 138, 0.12);
    border-color: var(--accent);
}

.qc-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.qc-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.qc-desc {
    font-size: 12px;
    color: var(--text-sub);
}

/* --- 搜索栏 --- */
.search-bar {
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}

.search-types {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}

.search-types span {
    font-size: 13px;
    padding: 3px 12px;
    border-radius: 3px;
    cursor: pointer;
    color: var(--text-sub);
    transition: all .2s;
    border: 1px solid var(--border);
}

.search-types span.active {
    background: var(--primary);
    color: #FFF;
    border-color: var(--primary);
}

.search-row {
    display: flex;
    gap: 8px;
}

.search-input {
    flex: 1;
    padding: 9px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color .2s;
    background: var(--bg);
}

.search-input:focus {
    border-color: var(--primary);
}

.btn-primary {
    padding: 9px 24px;
    background: var(--primary);
    color: #FFF;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: background .2s;
    letter-spacing: 2px;
    white-space: nowrap;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

/* --- 筛选区 --- */
.filter-panel {
    margin-bottom: 16px;
}

.filter-group {
    background: var(--card);
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 8px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.filter-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.filter-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-dark);
    letter-spacing: 1px;
}

.filter-clear {
    font-size: 12px;
    color: #C0392B;
    cursor: pointer;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.filter-tags.scroll-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.filter-tags.scroll-row::-webkit-scrollbar {
    height: 3px;
}

.filter-tags.scroll-row::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 2px;
}

.tag {
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 3px;
    cursor: pointer;
    color: var(--text-sub);
    transition: all .15s;
    background: var(--bg);
    border: 1px solid var(--border);
    white-space: nowrap;
    flex-shrink: 0;
}

.tag:hover {
    color: var(--primary);
    border-color: var(--primary-light);
}

.tag.active {
    background: var(--primary);
    color: #FFF;
    border-color: var(--primary);
}

.tag em {
    font-style: normal;
    font-size: 11px;
    opacity: 0.7;
    margin-left: 2px;
}

/* --- 结果区 --- */
.result-bar {
    background: var(--primary-light);
    border-radius: var(--radius);
    padding: 8px 14px;
    margin-bottom: 8px;
    font-size: 13px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.active-tag {
    background: var(--primary);
    color: #FFF;
    padding: 1px 8px;
    border-radius: 3px;
    font-size: 12px;
}

.active-tag b {
    cursor: pointer;
    margin-left: 4px;
    opacity: 0.8;
}

.result-info {
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 10px;
}

.loading-mask {
    text-align: center;
    padding: 60px;
    color: var(--text-sub);
    font-size: 14px;
}

/* --- 文献卡片 --- */
.lit-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lit-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
    cursor: pointer;
    transition: all .2s;
    border-left: 3px solid transparent;
}

.lit-card:hover {
    box-shadow: 0 4px 16px rgba(59, 107, 138, 0.1);
    border-left-color: var(--accent);
    transform: translateX(2px);
}

.lit-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.lit-oid {
    font-size: 12px;
    color: var(--text-sub);
}

.cat-tag {
    font-size: 11px;
    padding: 1px 8px;
    border-radius: 3px;
    color: #FFF;
    font-weight: 600;
    letter-spacing: 1px;
}

.cat-历史文献 {
    background: #8B5E3C;
}

.cat-现代文献 {
    background: #2E8B57;
}

.cat-音像资料 {
    background: #4682B4;
}

.cat-学位论文 {
    background: #8B6B8A;
}

.cat-报刊文章 {
    background: #C47A3C;
}

.lit-titles {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
    line-height: 1.5;
}

.lit-meta {
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 6px;
}

.lit-meta small {
    font-size: 11px;
    color: #AAA;
}

.lit-year {
    display: inline-block;
    margin-left: 8px;
    background: var(--bg);
    padding: 0 6px;
    border-radius: 3px;
    font-size: 12px;
    color: var(--accent-dark);
}

.lit-kws {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.lit-kws span {
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 2px;
    background: #F0EBE3;
    color: #8B7355;
}

.empty-msg {
    text-align: center;
    padding: 50px 20px;
    color: var(--text-sub);
    font-size: 14px;
}

/* --- 分页 --- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 20px;
}

.pagination button {
    padding: 7px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all .2s;
    color: var(--text);
}

.pagination button:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-num {
    font-size: 14px;
    color: var(--text-sub);
}

/* --- 工具栏 --- */
.toolbar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.toolbar select {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: inherit;
    background: var(--card);
    color: var(--text);
    outline: none;
}

.toolbar select:focus {
    border-color: var(--primary);
}

/* --- 知识图谱 --- */
.graph-body {
    width: 100%;
    height: calc(100vh - 180px);
    min-height: 400px;
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.graph-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 12px 0;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-sub);
}

.legend-item i {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    display: inline-block;
}

/* --- 地图 --- */
.gis-body {
    width: 100%;
    height: calc(100vh - 160px);
    min-height: 400px;
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* --- 详情弹窗 --- */
.overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(44, 80, 102, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.detail-panel {
    background: var(--card);
    border-radius: 8px;
    width: 100%;
    max-width: 640px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    position: relative;
    border-top: 3px solid var(--accent);
}

.detail-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-sub);
    width: 30px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    border-radius: 50%;
    transition: all .2s;
}

.detail-close:hover {
    background: var(--bg);
    color: var(--text);
}

.detail-top {
    margin-bottom: 12px;
}

.detail-title {
    font-size: 18px;
    line-height: 1.6;
    color: var(--text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.detail-block {
    margin-bottom: 14px;
}

.detail-block h4 {
    font-size: 13px;
    color: var(--primary-dark);
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.detail-block p {
    font-size: 14px;
    color: var(--text);
}

.d-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.d-tags span {
    font-size: 13px;
    padding: 2px 10px;
    border-radius: 3px;
    background: var(--primary-light);
    color: var(--primary-dark);
}

.d-tags span em {
    font-style: normal;
    font-size: 11px;
    color: var(--accent-dark);
    margin-left: 4px;
}

.kw-tags span {
    background: #F0EBE3;
    color: #6B5B3E;
}

.era-tag {
    display: inline-block;
    margin-left: 6px;
    background: var(--accent);
    color: #FFF;
    font-size: 11px;
    padding: 0 6px;
    border-radius: 2px;
}

.detail-block pre {
    font-size: 12px;
    background: var(--bg);
    padding: 10px;
    border-radius: var(--radius);
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-sub);
    line-height: 1.6;
    font-family: inherit;
}

/* --- 动画 --- */
.fade-enter-active,
.fade-leave-active {
    transition: opacity .25s;
}

.fade-enter-from,
.fade-leave-to {
    opacity: 0;
}

/* --- 响应式 --- */
@media (max-width: 768px) {
    .header-inner {
        height: 48px;
    }

    .app-logo {
        font-size: 16px;
        letter-spacing: 2px;
    }

    .nav-item {
        font-size: 12px;
        padding: 5px 8px;
        letter-spacing: 0;
    }

    .app-main {
        padding: 12px;
    }

    .hero-banner {
        padding: 24px 12px 20px;
    }

    .hero-banner h2 {
        font-size: 20px;
        letter-spacing: 3px;
    }

    .stat-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-num {
        font-size: 22px;
    }

    .chart-row {
        grid-template-columns: 1fr;
    }

    .chart-body {
        height: 220px;
    }

    .quick-cards {
        grid-template-columns: 1fr;
    }

    .quick-card {
        flex-direction: row;
        display: flex;
        align-items: center;
        gap: 12px;
        text-align: left;
        padding: 14px 16px;
    }

    .qc-icon {
        font-size: 24px;
        margin-bottom: 0;
    }

    .lit-titles {
        font-size: 14px;
    }

    .graph-body {
        height: calc(100vh - 160px);
        min-height: 300px;
    }

    .gis-body {
        height: calc(100vh - 140px);
        min-height: 300px;
    }

    .detail-panel {
        max-height: 90vh;
        padding: 16px;
    }

    .detail-title {
        font-size: 16px;
    }

    .pagination button {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media (max-width: 380px) {
    .app-logo {
        font-size: 14px;
    }

    .nav-item {
        font-size: 11px;
        padding: 4px 6px;
    }

    .stat-card {
        padding: 14px 8px;
    }

    .stat-num {
        font-size: 18px;
    }
}