/* 趣究本草 - 古典国风样式 */
:root {
    --ink: #2d3436;
    --ink-light: #636e72;
    --green: #2d4a3e;
    --green-light: #4a7c66;
    --green-dark: #1a3328;
    --ochre: #8b5a2b;
    --ochre-light: #b07d4a;
    --gold: #c9a96e;
    --paper: #f8f5f0;
    --paper-dark: #ede8e0;
    --red-seal: #c0392b;
    --border: #d4cdc3;
}

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

body {
    font-family: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
    background: var(--paper);
    color: var(--ink);
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部 */
.site-header {
    background: linear-gradient(180deg, var(--green-dark) 0%, var(--green) 100%);
    border-bottom: 3px solid var(--gold);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--gold);
}

.logo-icon { font-size: 1.8rem; }

.logo-text { display: flex; flex-direction: column; }

.logo-main {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 4px;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.65rem;
    color: rgba(201,169,110,0.7);
    letter-spacing: 1px;
}

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

.main-nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.95rem;
    transition: all 0.2s;
    letter-spacing: 1px;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--gold);
    background: rgba(255,255,255,0.08);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 20px;
    padding: 6px 36px 6px 14px;
    color: #fff;
    font-family: inherit;
    font-size: 0.85rem;
    width: 180px;
    outline: none;
    transition: all 0.2s;
}

.search-box input::placeholder { color: rgba(255,255,255,0.5); }

.search-box input:focus {
    background: rgba(255,255,255,0.15);
    border-color: var(--gold);
    width: 220px;
}

.search-box button {
    position: absolute;
    right: 4px;
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 0.9rem;
}

.search-dropdown {
    position: absolute;
    top: 44px;
    right: 0;
    width: 320px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    display: none;
    max-height: 400px;
    overflow-y: auto;
}

.search-group { padding: 8px 0; border-bottom: 1px solid var(--border); }
.search-group:last-child { border-bottom: none; }
.search-group-title {
    display: block;
    padding: 4px 16px;
    font-size: 0.75rem;
    color: var(--ink-light);
    font-weight: 600;
}
.search-item {
    display: flex;
    flex-direction: column;
    padding: 8px 16px;
    text-decoration: none;
    color: var(--ink);
    transition: background 0.15s;
}
.search-item:hover { background: var(--paper); }
.search-item-name { font-weight: 600; font-size: 0.9rem; }
.search-item-meta { font-size: 0.75rem; color: var(--ink-light); }
.search-empty { padding: 20px; text-align: center; color: var(--ink-light); font-size: 0.85rem; }

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    background: var(--green-dark);
    padding: 10px 20px;
}

.mobile-menu.open { display: block; }
.mobile-menu a {
    display: block;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

/* 主体 */
.main-content { flex: 1; max-width: 1200px; width: 100%; margin: 0 auto; padding: 30px 20px; }

/* 首页 Hero */
.hero {
    text-align: center;
    padding: 60px 20px 50px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20px; left: 50%;
    transform: translateX(-50%);
    width: 80px; height: 3px;
    background: var(--gold);
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--green-dark);
    letter-spacing: 8px;
    margin-bottom: 12px;
}

.hero .subtitle {
    font-size: 1.1rem;
    color: var(--ink-light);
    margin-bottom: 40px;
    letter-spacing: 2px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
}

.hero-stat { text-align: center; }
.hero-stat .number {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--ochre);
    line-height: 1;
}
.hero-stat .label {
    font-size: 0.9rem;
    color: var(--ink-light);
    margin-top: 6px;
    letter-spacing: 1px;
}

.hero-seal {
    display: inline-block;
    border: 2px solid var(--red-seal);
    color: var(--red-seal);
    padding: 6px 16px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    transform: rotate(-3deg);
    margin-top: 10px;
}

/* 区块标题 */
.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--green-dark);
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 16px;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%;
    transform: translateX(-50%);
    width: 50px; height: 2px;
    background: var(--gold);
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.2s;
    text-decoration: none;
    color: var(--ink);
    display: block;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--green);
    opacity: 0;
    transition: opacity 0.2s;
}

.card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    transform: translateY(-2px);
    border-color: var(--green-light);
}

.card:hover::before { opacity: 1; }

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--ink-light);
    font-style: italic;
    margin-bottom: 12px;
}

.card-meta {
    font-size: 0.8rem;
    color: var(--ink-light);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.card-meta span {
    background: var(--paper);
    padding: 2px 10px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.card-desc {
    font-size: 0.85rem;
    color: var(--ink-light);
    margin-top: 12px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 筛选栏 */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    align-items: center;
    padding: 16px 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.filter-bar input, .filter-bar select {
    font-family: inherit;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    outline: none;
    background: var(--paper);
}

.filter-bar input:focus, .filter-bar select:focus { border-color: var(--green); }

.filter-bar input { min-width: 180px; }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 30px;
}

.pagination button, .pagination a {
    padding: 6px 14px;
    border: 1px solid var(--border);
    background: #fff;
    color: var(--ink);
    text-decoration: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    transition: all 0.15s;
}

.pagination button:hover, .pagination a:hover {
    border-color: var(--green);
    color: var(--green);
}

.pagination button.active, .pagination a.active {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}

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

/* 详情页 */
.detail-header {
    text-align: center;
    padding: 40px 20px 30px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

.detail-header h1 {
    font-size: 2.2rem;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.detail-header .latin {
    font-style: italic;
    color: var(--ink-light);
    font-size: 1rem;
}

.detail-section {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
    margin-bottom: 20px;
}

.detail-section h3 {
    font-size: 1.1rem;
    color: var(--green-dark);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-section h3::before {
    content: '';
    display: inline-block;
    width: 4px; height: 18px;
    background: var(--gold);
    border-radius: 2px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.detail-item dt {
    font-size: 0.75rem;
    color: var(--ink-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.detail-item dd {
    font-size: 0.95rem;
    color: var(--ink);
    font-weight: 600;
}

.tag {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    margin: 3px;
}

.tag-green { background: #e8f5e9; color: var(--green-dark); border: 1px solid #c8e6c9; }
.tag-ochre { background: #fff3e0; color: var(--ochre); border: 1px solid #ffe0b2; }
.tag-gray { background: var(--paper); color: var(--ink-light); border: 1px solid var(--border); }

.relation-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.relation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--paper);
    border-radius: 6px;
    text-decoration: none;
    color: var(--ink);
    transition: background 0.15s;
}

.relation-item:hover { background: var(--paper-dark); }

.relation-item .ri-name { font-weight: 600; flex: 1; }
.relation-item .ri-meta { font-size: 0.8rem; color: var(--ink-light); }
.relation-item .ri-role {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--gold);
    color: #fff;
}

/* 科普/关于页面 */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 40px;
}

.article-content h2 {
    font-size: 1.4rem;
    color: var(--green-dark);
    margin: 30px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.article-content h2:first-child { margin-top: 0; }

.article-content p {
    margin-bottom: 14px;
    text-align: justify;
}

.article-content ul, .article-content ol {
    margin-bottom: 14px;
    padding-left: 24px;
}

.article-content li { margin-bottom: 6px; }

/* 页脚 */
.site-footer {
    background: var(--green-dark);
    color: rgba(255,255,255,0.7);
    margin-top: auto;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px 20px;
}

.footer-brand { text-align: center; margin-bottom: 30px; }
.footer-brand .logo-main { font-size: 1.4rem; color: var(--gold); letter-spacing: 4px; }
.footer-brand p { font-size: 0.85rem; margin-top: 8px; }

.footer-links {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-bottom: 30px;
}

.footer-col h4 {
    font-size: 0.9rem;
    color: var(--gold);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 4px 0;
    transition: color 0.15s;
}

.footer-col a:hover { color: var(--gold); }

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
}

/* 响应式 */
@media (max-width: 768px) {
    .main-nav { display: none; }
    .mobile-menu-toggle { display: block; }
    .search-box input { width: 140px; }
    .search-box input:focus { width: 160px; }
    .hero h1 { font-size: 1.8rem; letter-spacing: 4px; }
    .hero-stats { gap: 24px; }
    .hero-stat .number { font-size: 1.8rem; }
    .card-grid { grid-template-columns: 1fr; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .filter-bar input, .filter-bar select { width: 100%; }
    .detail-grid { grid-template-columns: 1fr; }
    .footer-links { flex-direction: column; gap: 24px; align-items: center; }
    .article-content { padding: 24px; }
}

/* 加载 */
.loading {
    text-align: center;
    padding: 60px;
    color: var(--ink-light);
}

.empty {
    text-align: center;
    padding: 60px;
    color: var(--ink-light);
    font-size: 0.9rem;
}