/* 全局重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--hover-color); }

/* 导航栏 */
.navbar {
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky; top: 0; z-index: 1000; padding: 12px 0;
}

.navbar .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }

.logo { display: flex; align-items: center; gap: 8px; font-size: 1.5rem; font-weight: bold; color: var(--text-color); }
.logo-icon {
    background: var(--primary-gradient); color: #fff; width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center; border-radius: 10px; font-size: 1.2rem;
}

.nav-links { display: flex; list-style: none; gap: 8px; align-items: center; flex-wrap: wrap; }
.nav-links a {
    color: var(--text-secondary); padding: 8px 14px; border-radius: 8px; transition: 0.3s; display: block; font-size: 0.95rem;
}
.nav-links a.active, .nav-links a:hover { background: rgba(102, 126, 234, 0.15); color: var(--text-color); }

.nav-dropdown { position: relative; }
.dropdown-content {
    display: none; position: absolute; top: 100%; left: 0; background: var(--card-bg);
    border: 1px solid var(--border-color); border-radius: 12px; min-width: 220px; z-index: 1001;
}
.nav-dropdown:hover .dropdown-content { display: block; }
.dropdown-content a { padding: 12px 18px; border-bottom: 1px solid var(--border-color); }
.dropdown-content a:last-child { border-bottom: none; }

/* 首页 */
.hero { text-align: center; padding: 80px 20px 60px; }
.hero-title { font-size: 3rem; margin-bottom: 12px; letter-spacing: -0.5px; }
.gradient-text { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 8px; }
.hero-desc { color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

.section-title { text-align: center; font-size: 1.8rem; margin: 40px 0 24px; }

.bot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-bottom: 60px; }
.bot-card {
    background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px;
    padding: 28px 24px; position: relative; overflow: hidden; transition: 0.3s; cursor: pointer;
}
.bot-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.bot-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.bot-icon { font-size: 2.5rem; }
.status-dot { width: 12px; height: 12px; border-radius: 50%; }
.status-dot.online { background: #4ade80; box-shadow: 0 0 10px #4ade80; }
.status-dot.offline { background: #f87171; }

.bot-name { font-size: 1.3rem; margin-bottom: 4px; }
.bot-subtitle { font-size: 0.85rem; color: var(--accent); margin-bottom: 8px; font-weight: 600; }
.bot-desc { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.5; }
.bot-link-hint { font-size: 0.85rem; color: var(--accent); font-weight: 500; }

.monitor-preview { margin-bottom: 60px; }
.monitor-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.monitor-card {
    background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px;
    padding: 24px; text-align: center;
}
.monitor-card h4 { margin-bottom: 8px; }
.monitor-value { font-size: 2rem; font-weight: bold; background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.monitor-card small { color: var(--text-secondary); }

/* 监控页面 */
.monitor-page { padding: 40px 0; }
.monitor-page h1 { font-size: 2.2rem; margin-bottom: 16px; }
.monitor-desc { color: var(--text-secondary); margin-bottom: 20px; max-width: 800px; }

.feature-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 32px; }
.feature-tag { background: rgba(102, 126, 234, 0.15); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; }

.monitor-dashboard { display: grid; grid-template-rows: auto; gap: 20px; margin-bottom: 32px; }
.monitor-panel { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px; padding: 28px; }
.monitor-panel h3 { margin-bottom: 20px; }

.status-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.online-color { color: #4ade80 !important; }

.action-area { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { padding: 12px 28px; border-radius: 10px; font-size: 1rem; font-weight: 600; transition: 0.3s; text-align: center; display: inline-block; border: none; cursor: pointer; }
.btn-primary { background: var(--primary-gradient); color: #fff; }
.btn-primary:hover { opacity: 0.9; color: #fff; }
.btn-secondary { background: var(--card-bg); color: var(--text-color); border: 1px solid var(--border-color); }

/* 关于页面 */
.about-page { padding: 40px 0 60px; }
.about-page h1 { font-size: 2.2rem; margin-bottom: 32px; }
.about-section { margin-bottom: 32px; }
.about-section h2 { margin-bottom: 12px; }
.about-section p { color: var(--text-secondary); margin-bottom: 8px; }

.arch-diagram { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin: 20px 0; }
.arch-box { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px 20px; text-align: center; font-weight: bold; }
.arch-box small { display: block; color: var(--text-secondary); margin-top: 4px; }
.arch-arrow { font-size: 1.5rem; color: var(--primary-color); }

.thanks-list { display: flex; flex-direction: column; gap: 18px; }
.thanks-item { display: flex; gap: 16px; align-items: flex-start; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; }
.thanks-icon { font-size: 2rem; }
.thanks-item strong { display: block; margin-bottom: 4px; }
.thanks-item a { font-size: 0.85rem; }

/* 更新日志 */
.changelog-page { padding: 40px 0 60px; }
.changelog-subtitle { color: var(--text-secondary); margin-bottom: 40px; }

.timeline { position: relative; padding-left: 40px; }
.timeline::before { content: ''; position: absolute; left: 15px; top: 0; bottom: 0; width: 2px; background: var(--border-color); }

.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-marker {
    position: absolute; left: -29px; top: 8px; width: 12px; height: 12px;
    background: var(--primary-gradient); border-radius: 50%;
}
.timeline-content { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; }
.timeline-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.version-tag { background: var(--primary-gradient); color: #fff; padding: 4px 14px; border-radius: 20px; font-weight: 600; font-size: 0.9rem; }
.timeline-date { color: var(--text-secondary); font-size: 0.9rem; }
.changelog-list { list-style: none; }
.changelog-list li { padding: 4px 0; color: var(--text-secondary); position: relative; padding-left: 20px; }
.changelog-list li::before { content: '•'; color: var(--primary-color); position: absolute; left: 0; }

/* 页脚 */
.footer { background: var(--card-bg); border-top: 1px solid var(--border-color); padding: 24px 0; margin-top: auto; }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 0.85rem; color: var(--text-secondary); }
.footer-disclaimer { text-align: right; }
@media (max-width: 768px) {
    .hero-title { font-size: 2rem; }
    .bot-grid { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; text-align: center; }
    .footer-disclaimer { text-align: center; }
    .nav-links { margin-top: 10px; }
}

/* 页脚三栏新布局 */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    position: relative;
}
.footer-left { flex: 1; text-align: left; }
.footer-center { flex: 1; text-align: center; }
.footer-right { flex: 1; text-align: right; position: relative; }

/* 页脚三栏新布局 */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    position: relative;
}
.footer-left { flex: 1; text-align: left; }
.footer-center { flex: 1; text-align: center; }
.footer-right { flex: 1; text-align: right; position: relative; }

/* 小红书原生TV图标样式 */
.bilibili-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: inherit;
}
.bilibili-link:hover { color: var(--primary-color); }
.bili-tv-icon {
    vertical-align: middle;
    transition: transform 0.2s ease;
}
.bilibili-link:hover .bili-tv-icon {
    transform: scale(1.1);
    color: #FB7299; /* B站品牌粉 */
}

/* 更新日志优化 */
.timeline::before { display: none; } /* 去竖线 */

/* 最新版本圆点呼吸特效 */
.timeline-item:first-child .timeline-marker {
    animation: breathe 2s ease-in-out infinite;
}
@keyframes breathe {
    0% { box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.6); }
    50% { box-shadow: 0 0 0 10px rgba(102, 126, 234, 0); }
    100% { box-shadow: 0 0 0 0 rgba(102, 126, 234, 0); }
}

/* 变更标签 */
.tag {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    margin-right: 6px;
    font-weight: 600;
    vertical-align: middle;
}
.tag-新功能 { background: rgba(72, 199, 142, 0.15); color: #48c78e; }   /* 浅绿 */
.tag-优化   { background: rgba(72, 149, 239, 0.15); color: #4895ef; }   /* 浅蓝 */
.tag-修复   { background: rgba(255, 125, 101, 0.15); color: #ff7d65; }   /* 浅橙 */

/* 绿点呼吸特效 */
.status-dot.online {
    animation: onlineBreathe 2s ease-in-out infinite;
}
@keyframes onlineBreathe {
    0% { box-shadow: 0 0 6px #4ade80; }
    50% { box-shadow: 0 0 18px #4ade80, 0 0 30px rgba(74, 222, 128, 0.4); }
    100% { box-shadow: 0 0 6px #4ade80; }
}

/* 红点黯然缓慢闪烁 */
.status-dot.offline {
    background: #f87171;
    animation: offlineBlink 3s ease-in-out infinite;
}
@keyframes offlineBlink {
    0% { opacity: 0.4; box-shadow: none; }
    50% { opacity: 0.9; box-shadow: 0 0 6px #f87171; }
    100% { opacity: 0.4; box-shadow: none; }
}

/* ==================== 移动端样式 ==================== */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 3px;
    transition: 0.3s;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--bg-color);
        border-top: 1px solid var(--border-color);
        padding: 16px 0;
        margin-top: 12px;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links li {
        width: 100%;
    }
    .nav-links a {
        padding: 12px 20px;
    }
    .nav-dropdown .dropdown-content {
        position: static;
        background: transparent;
        border: none;
        padding-left: 20px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .bot-grid {
        grid-template-columns: 1fr;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .footer-left, .footer-center, .footer-right {
        text-align: center;
    }
}

/* ========== 新架构图样式 ========== */
.arch-diagram-v2 {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin: 20px 0;
}
.arch-row-top {
    display: flex;
    justify-content: center;
    margin-bottom: 0;
    position: relative;
}
.arch-row-middle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    position: relative;
}
.arch-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
    font-weight: bold;
    z-index: 1;
    position: relative;
}
.arch-box small {
    display: block;
    color: var(--text-secondary);
    margin-top: 4px;
}
/* 中心盒子 */
.arch-box.center {
    background: linear-gradient(135deg, #667eea20, #764ba220);
    border-color: var(--primary-color);
}
/* 连线：从顶部AstrBot向下到NapCat */
.arch-row-top::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 2px;
    height: 20px;
    background: var(--border-color);
    transform: translateX(-50%);
}
.arch-row-middle .left,
.arch-row-middle .right {
    position: relative;
}
/* NapCat 到 MaiBot 的横线 */
.arch-row-middle .left::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -20px;
    width: 20px;
    height: 2px;
    background: var(--border-color);
}
/* NapCat 到 QQ 的横线 */
.arch-row-middle .right::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -20px;
    width: 20px;
    height: 2px;
    background: var(--border-color);
}

/* 移动端适配 */
@media (max-width: 600px) {
    .arch-row-middle {
        flex-direction: column;
        gap: 12px;
    }
    .arch-row-middle .left::after,
    .arch-row-middle .right::before {
        display: none;
    }
    .arch-row-top::after {
        height: 12px;
    }
}

/* ===== 架构图箭头改造 ===== */
.arch-diagram-v2 .arch-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 8px;
}
/* 上下箭头 */
.arch-row-top .arch-arrow-down {
    margin: 8px 0;
}

/* 导航下拉三角优化 */
.nav-dropdown .dropbtn::after {
    content: ' ▾';
    font-size: 0.7rem;
    opacity: 0.6;
}
.nav-dropdown .dropbtn {
    /* 隐藏原来的 ▼ 文字，改用伪元素 */
}

/* 移除架构图中的旧线条 */
.arch-row-top::after,
.arch-row-middle .left::after,
.arch-row-middle .right::before {
    display: none !important;
}

/* 双向箭头样式 */
.arch-arrow,
.arch-arrow-down {
    font-size: 1.6rem;
    color: var(--primary-color);
    margin: 8px 0;
    text-align: center;
    line-height: 1;
}

@media (max-width: 600px) {
    .arch-arrow,
    .arch-arrow-down {
        font-size: 1.2rem;
        margin: 4px 0;
    }
}

/* 移动端架构图：隐藏横向箭头，改用间距分隔 */
@media (max-width: 600px) {
    .arch-row-middle {
        flex-direction: column;
        gap: 8px;
    }
    .arch-row-middle .arch-arrow {
        display: none; /* 去掉 ⇄，竖排自然表示双向 */
    }
    /* 给竖向排列的每个块之间加一个分隔，更清晰 */
    .arch-row-middle .arch-box:not(:last-child) {
        margin-bottom: 8px;
    }
    /* 上下箭头保留 */
    .arch-arrow-down {
        margin: 4px 0;
    }

    /* 特别鸣谢列表：图标与文字上下堆叠，居中 */
    .thanks-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .thanks-icon {
        margin-bottom: 8px;
    }
}

/* 移动端架构图 — 保持横向 */
@media (max-width: 600px) {
    .arch-diagram-v2 {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }

    .arch-row-middle {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: center;
        align-items: center;
        gap: 0;
    }

    .arch-row-middle .arch-arrow {
        display: inline;     /* ⇄ 依然可见 */
        font-size: 1.1rem;
        margin: 0 2px;
    }

    .arch-row-middle .arch-box {
        padding: 8px 6px;
        font-size: 0.75rem;
        min-width: 70px;
    }

    .arch-row-middle .arch-box small {
        font-size: 0.65rem;
    }

    .arch-row-top .arch-box {
        padding: 10px 14px;
    }

    .arch-arrow-down {
        font-size: 1.2rem;
        margin: 4px 0;
    }
}

/* ===== 免责声明弹窗 ===== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.modal-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 28px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.modal-box h3 {
    margin-bottom: 16px;
    color: var(--text-color);
}
.modal-box p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.5;
}
.btn {
    cursor: pointer;
}

/* ===== 全局页面切换淡入 ===== */
body {
    animation: pageFadeIn 0.5s ease-out both;
}
@keyframes pageFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== 每个区块上滑浮现 ===== */
.main-content > section {
    animation: fadeInUp 0.6s ease-out both;
}
.main-content > section:nth-child(1) { animation-delay: 0.1s; }
.main-content > section:nth-child(2) { animation-delay: 0.2s; }
.main-content > section:nth-child(3) { animation-delay: 0.3s; }
.main-content > section:nth-child(4) { animation-delay: 0.4s; }
.main-content > section:nth-child(5) { animation-delay: 0.5s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 免责声明弹窗渐入渐出 ===== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;

    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.modal-show {
    opacity: 1;
    visibility: visible;
}
.modal-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 28px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}
.modal-show .modal-box {
    transform: translateY(0);
}
.modal-box h3 {
    margin-bottom: 16px;
    color: var(--text-color);
}
.modal-box p {
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 汉堡菜单固定在右上角 */
.menu-toggle {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.navbar .container {
    position: relative;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--bg-color);
        border-top: 1px solid var(--border-color);
        padding: 16px 0;
        margin-top: 12px;
    }
    .nav-links.open {
        display: flex;
    }
}

/* ===== 修复移动端汉堡菜单位置 ===== */
@media (max-width: 768px) {
    .navbar .container {
        position: relative;           /* 确保汉堡以此为定位参考 */
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: flex !important;    /* 始终显示 */
        position: absolute !important;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        z-index: 1001;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--bg-color);
        border-top: 1px solid var(--border-color);
        padding: 16px 0;
        margin-top: 12px;
        order: 100;                  /* 确保菜单始终在汉堡下方 */
    }

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

/* ===== 强制汉堡固定在右上角（移动端） ===== */
@media (max-width: 768px) {
    .navbar .container {
        position: relative !important;
        display: flex;
        flex-wrap: wrap;
    }
    .menu-toggle {
        position: absolute !important;
        top: 16px !important;
        right: 20px !important;
        left: auto !important;
        bottom: auto !important;
        display: flex !important;
        flex-direction: column;
        gap: 5px;
        z-index: 1001;
        margin: 0 !important;
        padding: 0 !important;
        transform: none;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--bg-color);
        border-top: 1px solid var(--border-color);
        margin-top: 12px;
    }
    .nav-links.open {
        display: flex;
    }
    /* 确保展开后汉堡仍在原位 */
    .nav-links.open ~ .menu-toggle {
        position: absolute !important;
        top: 16px !important;
        right: 20px !important;
    }
}

/* ===== 微调汉堡垂直位置（再高一点） ===== */
@media (max-width: 768px) {
    .menu-toggle {
        top: 10px !important;  /* 原来是 16px，现在往上移 */
    }
    /* 确保展开后汉堡也在同样高度 */
    .nav-links.open ~ .menu-toggle {
        top: 10px !important;
    }
}