:root {
      --primary: rgb(79,70,229);
      --primary-hover: rgb(67, 56, 202);
      --hero-primary: #1D7BFF;
      --hero-bg: #0a0f1d;
      --hero-accent: #38BDF8;
      --text-dark: #0f172a;
      --text-gray: #4b5563;
      --text-light: #94a3b8;
      --bg-light: #f8fafc;
      --border-color: #e2e8f0;
      --max-width: 1200px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-dark);
      background-color: #fff;
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
    img { max-width: 100%; height: auto; }
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }
    
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 15, 29, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      color: #fff;
      height: 70px;
      display: flex;
      align-items: center;
    }
    .header-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .logo img {
      display: block;
      height: 36px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
      flex-shrink: 0;
    }
    .logo span {
      display: inline-block;
      font-size: 18px;
      font-weight: 800;
      line-height: 1;
      color: #fff;
      white-space: nowrap;
    }
    .nav-menu {
      display: flex;
      gap: 24px;
      align-items: center;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: #cbd5e1;
    }
    .nav-menu a:hover {
      color: var(--hero-accent);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 24px;
      cursor: pointer;
    }
    
    .mobile-drawer {
      position: fixed;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      z-index: 2000;
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
      visibility: hidden;
    }
    .mobile-drawer.active {
      left: 0;
      visibility: visible;
    }
    .drawer-backdrop {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(15, 23, 42, 0.6);
      backdrop-filter: blur(4px);
    }
    .drawer-content {
      position: absolute;
      top: 0;
      left: 0;
      width: 300px;
      height: 100%;
      background: #0f172a;
      color: #fff;
      padding: 24px;
      display: flex;
      flex-direction: column;
      box-shadow: 10px 0 30px rgba(0,0,0,0.3);
    }
    .drawer-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 40px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding-bottom: 20px;
    }
    .drawer-close {
      background: none;
      border: none;
      color: #fff;
      font-size: 28px;
      cursor: pointer;
    }
    .drawer-nav {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .drawer-nav a {
      font-size: 16px;
      font-weight: 500;
      color: #cbd5e1;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255,255,255,0.03);
    }
    .drawer-footer {
      margin-top: auto;
      font-size: 13px;
      color: #64748b;
      line-height: 1.8;
      border-top: 1px solid rgba(255,255,255,0.08);
      padding-top: 20px;
    }

    
    .inner-banner {
      background: linear-gradient(135deg, #101625 0%, #151f38 100%);
      color: #fff;
      padding: 40px 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .breadcrumbs {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-light);
    }
    .breadcrumbs a { color: #94a3b8; }
    .breadcrumbs a:hover { color: var(--hero-accent); }

    
    .section-padding { padding: 60px 0; }
    .reader-grid { display: grid; grid-template-columns: 3fr 1fr; gap: 40px; }
    .article-main { background: #fff; border: 1px solid var(--border-color); border-radius: 16px; padding: 40px; }
    .meta-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 30px;
      font-size: 14px;
      color: var(--text-gray);
    }
    .meta-bar span { display: inline-flex; align-items: center; gap: 6px; }

    .article-header h1 { font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; color: var(--text-dark); }
    .article-summary-box {
      background: var(--bg-light);
      border-left: 4px solid var(--hero-primary);
      padding: 20px;
      border-radius: 0 8px 8px 0;
      font-size: 15px;
      color: var(--text-gray);
      margin-bottom: 30px;
      line-height: 1.6;
    }

    .article-body-content { font-size: 16px; line-height: 1.8; color: #334155; }
    .article-body-content p { margin-bottom: 20px; }
    .article-body-content img { border-radius: 10px; margin: 20px 0; box-shadow: 0 4px 10px rgba(0,0,0,0.03); }

    
    .post-nav {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 20px 0;
      margin: 40px 0;
      gap: 20px;
    }
    .post-nav-item { width: 50%; }
    .post-nav-label { font-size: 12px; color: var(--text-light); margin-bottom: 4px; text-transform: uppercase; }
    .post-nav-title { font-size: 14px; font-weight: 700; color: var(--text-dark); }
    .post-nav-title a:hover { color: var(--hero-primary); }

    
    .related-section { margin-top: 50px; }
    .related-title { font-size: 20px; font-weight: 800; margin-bottom: 24px; position: relative; padding-left: 12px; }
    .related-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 4px;
      bottom: 4px;
      width: 4px;
      background: var(--hero-primary);
      border-radius: 2px;
    }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .rel-card { background: var(--bg-light); border: 1px solid var(--border-color); border-radius: 8px; padding: 20px; }
    .rel-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
    .rel-card h4 a:hover { color: var(--hero-primary); }
    .rel-card p { font-size: 13px; color: var(--text-gray); }

    
    .sidebar { display: flex; flex-direction: column; gap: 30px; }
    .widget { background: var(--bg-light); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; }
    .widget-title { font-size: 16px; font-weight: 700; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid var(--hero-primary); color: var(--text-dark); }
    .widget-links { list-style: none; }
    .widget-links li { margin-bottom: 12px; font-size: 14px; }
    .widget-links a { color: var(--text-gray); }
    .widget-links a:hover { color: var(--hero-primary); }

    
    footer {
      background: #0b0f19;
      color: #94a3b8;
      border-top: 1px solid rgba(255,255,255,0.08);
      padding: 70px 0 30px 0;
    }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 50px; }
    .footer-col h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 20px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a:hover { color: var(--hero-accent); }
    .footer-brand p { margin: 15px 0; font-size: 14px; line-height: 1.7; }
    .footer-contact p { margin-bottom: 10px; font-size: 14px; }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 30px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

    @media (max-width: 991px) {
      .reader-grid, .related-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 767px) {
      .footer-grid { grid-template-columns: 1fr; }
      .nav-menu { display: none; }
      .menu-toggle { display: block; }
    }