/* 基础重置和暗黑背景 */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #0b0f1a; color: #e5e7eb; line-height: 1.6; -webkit-font-smoothing: antialiased; }
    a { color: inherit; text-decoration: none; }
    ul { list-style: none; }

    /* 顶部导航 */
    .top-nav {
        position: sticky; top: 0; z-index: 100;
        background: rgba(11,15,26,0.85); backdrop-filter: blur(12px);
        border-bottom: 1px solid #1f2937;
        padding: 0 40px; height: 56px;
        display: flex; align-items: center; justify-content: space-between;
    }
    .top-nav .brand { font-size: 18px; font-weight: 700; letter-spacing: -0.5px; }
    .top-nav .brand span { background: linear-gradient(135deg, #6366f1, #7c3aed); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .top-nav .nav-links { display: flex; gap: 28px; font-size: 14px; color: #9ca3af; }
    .top-nav .nav-links a:hover { color: #e5e7eb; }
    .top-nav .nav-right { display: flex; gap: 16px; font-size: 14px; align-items: center; }
    .top-nav .nav-right a.btn-login { color: #9ca3af; }
    .top-nav .nav-right a.btn-signup { background: linear-gradient(135deg, #6366f1, #7c3aed); color: #fff; padding: 6px 18px; border-radius: 6px; font-weight: 500; }

/* ================== Global Reset & Dark Theme ================== */
* { box-sizing: border-box; }
body { 
    background-color: #0a0a12 !important; 
    color: #f0eef5 !important; 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
    margin: 0; padding: 0; line-height: 1.5;
    text-align: left !important; 
}
a { color: #e2dff0; text-decoration: none; transition: color 0.2s; }
a:hover { color: #8b5cf6; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { color: #ffffff; margin: 0; text-align: left !important; }

/* Topbar & Header Fix */
body > div:first-of-type, body > p:first-of-type {
    background: #12121e; color: #a8a3b8; font-size: 13px; padding: 8px 40px; border-bottom: 1px solid #1e1e30; text-align: right !important;
}
.main-container { max-width: 100% !important; padding: 0 !important; }
.main-container > .header, .main-container > header, .main-container > #header {
    display: flex !important; align-items: center !important; justify-content: space-between !important; 
    padding: 20px 40px !important; margin-bottom: 30px !important; border-bottom: 1px solid #1e1e30 !important;
    width: 100% !important; max-width: 100% !important;
}

/* ================== Main Container ================== */
.content-container { max-width: 1600px; margin: 0 auto; display: flex; gap: 30px; align-items: flex-start; padding: 0 40px 40px; }
.mainbox-left-column { flex: 1; min-width: 0; }
.mainbox-right-column { width: 340px; flex-shrink: 0; }

/* ================== Left Column ================== */
.subcate { background: #12121e; border: 1px solid #1e1e30; border-radius: 12px; padding: 20px 24px; margin-bottom: 24px; }
.subcate h3 { font-size: 20px; margin-bottom: 16px; color: #8b5cf6; text-align: left !important; display: block !important; }
.scatelist { display: flex; flex-wrap: wrap; gap: 12px; }
.scatelist li a { 
    display: inline-block; padding: 8px 16px; background: #1e1e2e; border-radius: 20px; font-size: 14px; color: #a8a3b8 !important; border: 1px solid transparent; transition: all 0.2s;
}
.scatelist li a:hover { background: #8b5cf6; color: #fff !important; }

/* 列表容器 */
.listbox { background: #12121e; border: 1px solid #1e1e30; border-radius: 16px; padding: 24px 32px; }
.artlist { display: flex; flex-direction: column; gap: 20px; }

/* 新闻卡片 */
.artlist li { display: flex; gap: 24px; padding: 20px; background: #0a0a12; border: 1px solid #1e1e30; border-radius: 12px; transition: border-color 0.2s, transform 0.2s; align-items: stretch; text-align: left !important; }
.artlist li:hover { border-color: #8b5cf6; transform: translateY(-2px); }

/* 🌟 封面图容器（无图时的高级紫底） */
.art-cover { 
    width: 240px; 
    height: 150px; 
    flex-shrink: 0; 
    border-radius: 8px; 
    overflow: hidden; 
    background: linear-gradient(135deg, rgba(139,92,246,0.15), #12121e); 
    position: relative; 
    border: 1px solid #1e1e30;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 优雅的 RXA NEWS 暗纹底 */
.art-cover::before {
    content: "RXA NEWS";
    position: absolute;
    font-weight: 900;
    font-size: 20px;
    color: rgba(255, 255, 255, 0.05);
    letter-spacing: 3px;
    z-index: 0;
}
/* 图片本身 */
.art-cover img { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
    display: block; 
    position: relative; 
    z-index: 2; 
}

/* 文章信息区域 */
.art-info { flex: 1; display: flex; flex-direction: column; justify-content: center; min-width: 0; text-align: left !important; }
.art-info h3 { font-size: 20px; margin-bottom: 10px; line-height: 1.4; text-align: left !important; }
.art-info h3 a { color: #fff; display: block; text-align: left !important; transition: color 0.2s; }
.art-info h3 a:hover { color: #8b5cf6; }
.art-info p { font-size: 14px; color: #a8a3b8; line-height: 1.6; margin: 0 0 14px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-align: left !important; }
.art-info cite { font-style: normal; font-size: 13px; color: #6b6880; text-align: left !important; display: inline-block; }

/* ================== Right Sidebar ================== */
.bestart, .bestweb { background: #12121e; border: 1px solid #1e1e30; border-radius: 16px; padding: 24px; margin-bottom: 24px; }
.bestart h3, .bestweb h3 { font-size: 18px; margin-bottom: 20px; padding-left: 12px; border-left: 4px solid #8b5cf6; text-align: left !important; display: block !important; }

/* Recommended News */
.artlist_b { display: flex; flex-direction: column; gap: 0; }
.artlist_b li { padding: 12px 0; border-bottom: 1px dashed #1e1e30; display: flex; align-items: flex-start; gap: 10px; text-align: left !important; }
.artlist_b li:last-child { border-bottom: none; padding-bottom: 0; }
.artlist_b li:first-child { padding-top: 0; }
.artlist_b li::before { content: "•"; color: #8b5cf6; font-size: 18px; line-height: 1.2; flex-shrink: 0; }
.artlist_b li a { font-size: 14px; color: #e2dff0; display: block; line-height: 1.5; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: color 0.2s; text-align: left !important; }
.artlist_b li a:hover { color: #8b5cf6; }

/* Featured Websites */
.weblist_b { display: flex; flex-direction: column; gap: 16px; }
.weblist_b li { background: #0a0a12; border: 1px solid #1e1e30; border-radius: 12px; transition: border-color 0.2s; overflow: hidden; }
.weblist_b li:hover { border-color: #8b5cf6; }
.web-link-wrapper { display: flex; align-items: center; justify-content: space-between; padding: 16px; text-decoration: none; width: 100%; text-align: left !important; }
.web-left-group { display: flex; align-items: center; gap: 16px; min-width: 0; }
.web-left-group img { display: block; width: 80px; height: 60px; flex-shrink: 0; background: #12121e; border-radius: 8px; object-fit: cover; border: 1px solid #1e1e30; }
.web-title { font-size: 16px; color: #fff; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: left !important; }
.fake-btn { display: inline-flex; align-items: center; justify-content: center; color: #8b5cf6; font-size: 13px; padding: 6px 16px; background: rgba(139,92,246,0.1); border-radius: 6px; transition: background 0.2s, color 0.2s; flex-shrink: 0; margin-left: 12px; }
.weblist_b li:hover .fake-btn { background: #8b5cf6; color: #fff; }

/* ================== 优雅的广告位 ================== */
.ad-wrap { 
    position: relative; border: 1px dashed rgba(139, 92, 246, 0.4); border-radius: 16px; 
    background: linear-gradient(135deg, rgba(139,92,246,0.05), rgba(34,211,238,0.02)); 
    overflow: hidden; display: flex; flex-direction: column; margin-bottom: 24px; 
}
.ad-label { position: absolute; top: 10px; left: 14px; font-size: 10px; color: #8b5cf6; font-weight: 800; letter-spacing: 1.5px; z-index: 10; }
.ad-content { display: flex; justify-content: center; align-items: center; width: 100%; min-height: 250px; color: #6b6880; font-size: 14px;}

/* ================== Others ================== */
.showpage { margin-top: 24px; text-align: center !important; color: #a8a3b8; }
.showpage a { display: inline-block; padding: 8px 16px; border: 1px solid #1e1e30; border-radius: 8px; margin: 0 4px; background: #12121e; color: #a8a3b8; }
.showpage a:hover { border-color: #8b5cf6; color: #8b5cf6; }

/* Footer Fix */
.main-container > .footer, .main-container > footer { margin-top: 40px !important; padding: 30px 0 !important; border-top: 1px solid #1e1e30 !important; text-align: center !important; color: #6b6880 !important; font-size: 14px !important; }

/* Responsive */
@media (max-width: 1024px) {
    .main-container > .header { padding: 20px !important; }
    .content-container { padding: 0 20px 20px; flex-direction: column; }
    .mainbox-right-column { width: 100%; }
    .artlist li { flex-direction: column; }
    .art-cover { width: 100%; height: 200px; }
}