/* ============================================================
   中国姓名学 · 学术研究站 全局样式 V2.1
   干净深蓝 + 金色点缀
   ============================================================ */

/* ----- 重置 & 基础 ----- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
    background: #ffffff;
    color: #111111;
    line-height: 1.7;
    padding-top: 64px;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ----- 容器 ----- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ----- 导航栏 ----- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(184, 134, 11, 0.15);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 24px;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0;
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-shrink: 0;
}

.nav-logo .logo-main {
    font-family: "Noto Serif SC", "华文楷体", serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #111111;
    letter-spacing: 2px;
}

.nav-logo .logo-sub {
    font-size: 0.75rem;
    color: #b8860b;
    letter-spacing: 2px;
    font-weight: 300;
    border-left: 1px solid #b8860b;
    padding-left: 8px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-menu a {
    font-size: 0.9rem;
    color: #444444;
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #b8860b;
}

.nav-menu a.active::after {
    content: "";
    display: block;
    height: 2px;
    background: #b8860b;
    margin-top: 2px;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: #111111;
    cursor: pointer;
}

/* ----- 学术站主横幅 ----- */
.academic-hero {
    background: linear-gradient(135deg, #003366 0%, #0066CC 50%, #003366 100%);
    padding: 70px 24px 60px;
    text-align: center;
    border-bottom: 4px solid #b8860b;
}

.academic-hero .container {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(0, 102, 204, 0.2);
    color: #f5e6ca;
    padding: 4px 18px;
    border-radius: 20px;
    font-size: 13px;
    letter-spacing: 2px;
    border: 1px solid rgba(184, 134, 11, 0.3);
    margin-bottom: 16px;
}

.academic-hero h1 {
    color: #ffffff;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
}

.academic-hero .hero-subtitle {
    color: #d4d4d4;
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 20px;
    line-height: 1.7;
}

.academic-hero .hero-quote {
    color: #f5e6ca;
    font-size: 20px;
    font-style: italic;
    padding: 16px 24px;
    border-top: 2px solid rgba(184, 134, 11, 0.4);
    border-bottom: 2px solid rgba(184, 134, 11, 0.4);
    display: inline-block;
    letter-spacing: 1px;
}

/* ----- 理论体系 ----- */
.theory-summary {
    padding: 60px 24px 50px;
    background: #ffffff;
}

.theory-summary h2 {
    font-size: 26px;
    text-align: center;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 10px;
    margin-bottom: 8px;
}

.section-desc {
    text-align: center;
    color: #444444;
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 16px;
}

.theory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.theory-card {
    background: #ffffff;
    border: 1px solid #e8e0d8;
    padding: 28px 24px 24px;
    border-radius: 4px;
    transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.theory-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.theory-card .card-icon {
    font-size: 36px;
    margin-bottom: 10px;
}

.theory-card h3 {
    font-size: 22px;
    margin-bottom: 2px;
    color: #111111;
}

.theory-card .card-subtitle {
    font-size: 14px;
    color: #b8860b;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.theory-card p {
    font-size: 14px;
    color: #333333;
    line-height: 1.7;
    margin-bottom: 12px;
}

.theory-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 16px 0;
}

.theory-card ul li {
    font-size: 13px;
    color: #444444;
    padding: 3px 0 3px 20px;
    position: relative;
    margin-bottom: 2px;
}

.theory-card ul li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #b8860b;
    font-weight: 700;
}

.theory-card .card-link {
    color: #111111;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 2px;
    font-size: 14px;
    transition: color 0.2s;
}

.theory-card .card-link:hover {
    color: #b8860b;
}

/* ----- 综合势能 ----- */
.force-section {
    padding: 50px 24px;
    background: #f8f9fc;
}

.force-box {
    background: #0f1a3a;
    padding: 40px 36px;
    text-align: center;
    border-radius: 4px;
    border-left: 6px solid #b8860b;
}

.force-badge {
    display: inline-block;
    background: rgba(184, 134, 11, 0.2);
    color: #f5e6ca;
    padding: 2px 16px;
    font-size: 12px;
    letter-spacing: 2px;
    border-radius: 12px;
    margin-bottom: 10px;
}

.force-box h2 {
    color: #ffffff;
    font-size: 26px;
    margin-bottom: 12px;
}

.force-box p {
    color: #d4d4d4;
    font-size: 16px;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto 16px;
}

.force-meta {
    display: flex;
    justify-content: center;
    gap: 30px;
    color: #a0a0a0;
    font-size: 13px;
    margin-bottom: 20px;
}

.force-link {
    display: inline-block;
    color: #f5e6ca;
    background: transparent;
    border: 2px solid #b8860b;
    padding: 10px 32px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: background 0.3s, color 0.3s;
    border-radius: 2px;
}

.force-link:hover {
    background: #b8860b;
    color: #ffffff;
}

/* ----- 最新学术文章 ----- */
.articles-section {
    padding: 60px 24px 50px;
    background: #ffffff;
}

.articles-section h2 {
    font-size: 26px;
    text-align: center;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 10px;
    margin-bottom: 8px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.article-card {
    background: #ffffff;
    border: 1px solid #e8e0d8;
    padding: 24px 24px 20px;
    border-radius: 4px;
    transition: box-shadow 0.3s ease;
}

.article-card:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
}

.article-card .article-tag {
    display: inline-block;
    background: #0f1a3a;
    color: #ffffff;
    font-size: 11px;
    padding: 2px 12px;
    letter-spacing: 1px;
    border-radius: 2px;
    margin-bottom: 8px;
}

.article-card h3 {
    font-size: 18px;
    line-height: 1.5;
    margin-bottom: 8px;
    color: #111111;
}

.article-card .article-excerpt {
    font-size: 14px;
    color: #333333;
    line-height: 1.7;
    margin-bottom: 12px;
}

.article-card .article-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: #888888;
    margin-bottom: 14px;
}

.article-card .article-link {
    color: #111111;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 2px;
    font-size: 14px;
    transition: color 0.2s;
}

.article-card .article-link:hover {
    color: #b8860b;
}

/* ----- 关于学术站 ----- */
.about-academic {
    padding: 50px 24px;
    background: #f8f9fc;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text h2 {
    font-size: 24px;
    border-bottom: 2px solid #b8860b;
    padding-bottom: 8px;
    margin-bottom: 14px;
}

.about-text p {
    font-size: 15px;
    color: #222222;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    padding: 0;
    margin: 10px 0;
}

.about-text ul li {
    padding: 4px 0 4px 24px;
    position: relative;
    font-size: 14px;
    color: #222222;
}

.about-text ul li::before {
    content: "◆";
    position: absolute;
    left: 0;
    color: #b8860b;
    font-size: 12px;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-item {
    background: #ffffff;
    border: 1px solid #e8e0d8;
    padding: 20px 16px;
    text-align: center;
    border-radius: 4px;
}

.stat-item .stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #0f1a3a;
}

.stat-item .stat-label {
    font-size: 13px;
    color: #444444;
}

/* ----- 三站联动 ----- */
.site-links {
    padding: 50px 24px 40px;
    background: #ffffff;
    border-top: 1px solid #e8e0d8;
}

.site-links h2 {
    font-size: 22px;
    text-align: center;
    margin-bottom: 24px;
}

.site-links-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.site-link-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #f8f9fc;
    border: 1px solid #e8e0d8;
    padding: 16px 28px;
    border-radius: 4px;
    text-decoration: none;
    color: #111111;
    transition: border-color 0.3s, box-shadow 0.3s;
    min-width: 180px;
}

.site-link-card:hover {
    border-color: #b8860b;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.site-link-card.active {
    border-color: #b8860b;
    background: #f5e6ca;
}

.site-link-card.coming-soon {
    opacity: 0.5;
    cursor: not-allowed;
}

.site-link-card .link-icon {
    font-size: 24px;
}

.site-link-card strong {
    display: block;
    font-size: 15px;
}

.site-link-card span:last-child {
    font-size: 12px;
    color: #888888;
}

/* ----- 页脚 ----- */
.footer {
    background: #1a1a2e;
    color: rgba(255, 255, 255, 0.7);
    padding: 48px 0 24px;
}

.footer .footer-container {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-logo {
    font-family: "Noto Serif SC", serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    display: block;
    letter-spacing: 2px;
}

.footer-sub {
    font-size: 0.75rem;
    color: #b8860b;
    letter-spacing: 4px;
}

.footer-desc {
    font-size: 0.85rem;
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-col h4 {
    color: #ffffff;
    font-size: 0.85rem;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    padding: 4px 0;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: #b8860b;
}

.footer-bottom {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    flex-wrap: wrap;
    gap: 8px;
}

/* ----- 响应式 ----- */
@media (max-width: 768px) {
    body {
        padding-top: 54px;
    }

    .navbar {
        height: 54px;
        padding: 0 16px;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: 54px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        padding: 16px;
        flex-direction: column;
        gap: 4px;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid rgba(184, 134, 11, 0.15);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu a {
        display: block;
        padding: 8px 16px;
        border-radius: 6px;
        font-size: 0.9rem;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
        background: rgba(184, 134, 11, 0.08);
    }

    .nav-toggle {
        display: block;
    }

    .academic-hero {
        padding: 40px 16px 36px;
    }

    .academic-hero h1 {
        font-size: 24px;
    }

    .academic-hero .hero-quote {
        font-size: 16px;
        padding: 12px 16px;
    }

    .theory-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .footer .footer-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .force-box {
        padding: 28px 20px;
    }

    .force-box h2 {
        font-size: 20px;
    }

    .force-meta {
        flex-direction: column;
        gap: 4px;
    }

    .site-link-card {
        padding: 12px 18px;
        min-width: 140px;
    }

    .nav-logo .logo-main {
        font-size: 1.1rem;
    }

    .nav-logo .logo-sub {
        font-size: 0.6rem;
    }
}

@media (max-width: 480px) {
    .academic-hero h1 {
        font-size: 20px;
    }

    .theory-card h3 {
        font-size: 18px;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .stat-item .stat-number {
        font-size: 24px;
    }

    .site-link-card {
        min-width: 100%;
        justify-content: center;
    }
}