/* =========================================
   全局 CSS 
   ========================================= */

/* 1. 全局色彩与字体设置 */
:root {
    --zupu-red: #B22222;
    /* 主题红 */
    --zupu-red-dark: #8B0000;
    /* 深红 */
    --zupu-gold: #cda869;
    /* 古铜金 */
    --zupu-gold-light: #eaddc0;
    /* 浅金边框 */
    --zupu-bg: #fdfbf7;
    /* 宣纸米白色 */
    --zupu-text: #333333;
    /* 炭灰正文 */
    --zupu-muted: #888888;
    /* 辅助灰 */
}

body {
    background-color: var(--zupu-bg);
    color: var(--zupu-text);
    font-family: 'Microsoft YaHei', 'SimHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
}

/* 标题类优先使用衬线字体营造古典感 */
h1,
h2,
h3,
h4,
h5,
h6,
.serif-text {
    font-family: 'KaiTi', 'STKaiti', 'SimSun', serif;
    font-weight: bold;
    color: var(--zupu-red-dark);
}

a {
    color: var(--zupu-red);
    text-decoration: none;
}

a:hover {
    color: var(--zupu-red-dark);
    text-decoration: none;
}

/* 2. 顶部布局 (TopBar, Header, Nav) */
.zupu-topbar {
    background-color: #f7f7f7;
    border-bottom: 1px solid #eaeaea;
    font-size: 13px;
    padding: 5px 0;
    color: #666;
}

.zupu-topbar a {
    color: #666;
}

.zupu-topbar a:hover {
    color: var(--zupu-red);
}

.zupu-header {
    background-color: #fff;
    padding: 25px 0;
}

.zupu-logo-text {
    font-size: 36px;
    font-family: 'KaiTi', serif;
    color: var(--zupu-red-dark);
    letter-spacing: 4px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.zupu-navbar {
    background-color: var(--zupu-red);
    border-top: 2px solid var(--zupu-gold);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.zupu-navbar .nav-link {
    color: #fff !important;
    font-size: 16px;
    font-weight: 500;
    padding: 15px 25px !important;
    transition: background 0.3s;
}

.zupu-navbar .nav-link:hover,
.zupu-navbar .nav-link.active {
    background-color: var(--zupu-red-dark);
    color: var(--zupu-gold) !important;
}

/* 3. 按钮与表单重写 */
.btn-zupu-primary {
    background-color: var(--zupu-red);
    color: #fff;
    border: none;
}

.btn-zupu-primary:hover {
    background-color: var(--zupu-red-dark);
    color: #fff;
}

.btn-zupu-outline {
    background-color: transparent;
    color: var(--zupu-red);
    border: 1px solid var(--zupu-red);
}

.btn-zupu-outline:hover {
    background-color: var(--zupu-red);
    color: #fff;
}

.zupu-search-input {
    border: 2px solid var(--zupu-red);
    border-radius: 4px 0 0 4px;
}

.zupu-search-btn {
    border-radius: 0 4px 4px 0;
    padding: 0 30px;
    font-size: 18px;
}

/* 4. 通用模块样式 */
.zupu-section-title {
    display: flex;
    align-items: center;
    border-bottom: 2px solid var(--zupu-red);
    padding-bottom: 10px;
    margin-bottom: 25px;
}

.zupu-section-title h3 {
    margin: 0;
    font-size: 24px;
}

.zupu-section-title::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 24px;
    background-color: var(--zupu-red);
    margin-right: 15px;
}

.zupu-card {
    background-color: #fff;
    border: 1px solid var(--zupu-gold-light);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.zupu-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(178, 34, 34, 0.15);
    /* 红色弱阴影 */
}

/* 族谱卡片专属样式 (仿古书本) */
.book-cover-wrapper {
    background: #f0e6d2;
    height: 220px;
    border-bottom: 1px solid var(--zupu-gold-light);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 左侧模仿线装书装订线 */
.book-cover-wrapper::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 4px;
    border-left: 2px dashed rgba(0, 0, 0, 0.2);
}

.book-cover-img {
    max-height: 90%;
    max-width: 80%;
    box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.3);
}

/* 5. 底部版权区 */
.zupu-footer {
    background-color: #2b2b2b;
    border-top: 4px solid var(--zupu-red);
    color: #ccc;
    padding: 40px 0 20px;
    margin-top: 60px;
}

.zupu-footer a {
    color: #999;
}

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