/* roulang page: index */
:root {
      --color-tungsten: #12161A;
      --color-slate-dark: #1A2026;
      --color-amber-alert: #F58220;
      --color-plasma-green: #10B981;
      --color-bg-light: #F4F6F8;
      --color-bg-white: #FFFFFF;
      --color-bg-pitch: #0B0F12;
      --color-text-main: #0F172A;
      --color-text-sub: #334155;
      --color-text-muted: #64748B;
      --color-border: rgba(226, 232, 240, 0.8);
      --color-border-dark: #2A3440;
      --radius-sm: 6px;
      --shadow-subtle: 0 4px 12px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.1);
      --transition-fast: all 0.25s ease-in-out;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--color-bg-light);
      color: var(--color-text-sub);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-fast);
    }
    a:hover {
      color: var(--color-amber-alert);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    code, pre, .mono {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    }

    /* 顶部双行导航 */
    .header-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(18, 22, 26, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--color-border-dark);
    }

    .top-status-bar {
      background: #080B0E;
      color: var(--color-text-muted);
      font-size: 0.8125rem;
      padding: 0.45rem 1rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .status-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(245, 130, 32, 0.15);
      color: var(--color-amber-alert);
      border: 1px solid rgba(245, 130, 32, 0.35);
      border-radius: 4px;
      padding: 2px 8px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .status-chip.green {
      background: rgba(16, 185, 129, 0.15);
      color: var(--color-plasma-green);
      border-color: rgba(16, 185, 129, 0.35);
    }

    .main-nav {
      padding: 0.85rem 1rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.5px;
    }
    .nav-brand svg {
      width: 28px;
      height: 28px;
      fill: var(--color-amber-alert);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      gap: 1.5rem;
    }
    .nav-link {
      color: #CBD5E1;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.4rem 0;
      border-bottom: 2px solid transparent;
    }
    .nav-link:hover, .nav-link.active {
      color: #FFFFFF;
      border-bottom-color: var(--color-amber-alert);
    }
    .btn-cta-nav {
      background: var(--color-amber-alert);
      color: #0B0F12 !important;
      font-weight: 700;
      font-size: 0.875rem;
      padding: 0.55rem 1.25rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: 1px solid var(--color-amber-alert);
    }
    .btn-cta-nav:hover {
      background: #ff9133;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(245, 130, 32, 0.3);
    }

    /* 通用组件 */
    .section-wrap {
      padding: 5rem 0;
      position: relative;
    }
    .section-dark {
      background: var(--color-tungsten);
      color: #E2E8F0;
    }
    .section-pitch {
      background: var(--color-bg-pitch);
      color: #E2E8F0;
    }
    .section-white {
      background: var(--color-bg-white);
    }
    .section-alt {
      background: var(--color-bg-light);
    }

    .section-badge {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 0.75rem;
    }
    .badge-amber {
      background: rgba(245, 130, 32, 0.12);
      color: var(--color-amber-alert);
      border: 1px solid rgba(245, 130, 32, 0.3);
    }
    .badge-green {
      background: rgba(16, 185, 129, 0.12);
      color: var(--color-plasma-green);
      border: 1px solid rgba(16, 185, 129, 0.3);
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      color: var(--color-text-main);
      line-height: 1.3;
      margin-bottom: 1rem;
      letter-spacing: -0.5px;
    }
    .section-dark .section-title, .section-pitch .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.0625rem;
      color: var(--color-text-sub);
      max-width: 780px;
      margin-bottom: 2.5rem;
      line-height: 1.8;
    }
    .section-dark .section-desc, .section-pitch .section-desc {
      color: #94A3B8;
    }

    .btn-solid-amber {
      background: var(--color-amber-alert);
      color: #0B0F12 !important;
      font-weight: 700;
      padding: 0.85rem 2rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--color-amber-alert);
    }
    .btn-solid-amber:hover {
      background: #ff9133;
      box-shadow: 0 4px 16px rgba(245, 130, 32, 0.35);
      transform: translateY(-2px);
    }
    .btn-outline-steel {
      background: transparent;
      color: #E2E8F0 !important;
      border: 1px solid #475569;
      font-weight: 600;
      padding: 0.85rem 2rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-outline-steel:hover {
      border-color: #94A3B8;
      background: rgba(255, 255, 255, 0.05);
      transform: translateY(-2px);
    }

    .card-defense {
      background: var(--color-bg-white);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-sm);
      padding: 1.75rem;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-fast);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .card-defense:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: #CBD5E1;
    }
    .card-dark {
      background: var(--color-slate-dark);
      border: 1px solid var(--color-border-dark);
      color: #E2E8F0;
    }
    .card-dark:hover {
      border-color: #475569;
    }

    /* 1. Hero 杂志分栏首屏 */
    .hero-magazine {
      background: linear-gradient(135deg, rgba(11, 15, 18, 0.96) 0%, rgba(26, 32, 38, 0.92) 100%),
                  url('/assets/images/6b53abbf7b62cde5.webp') center/cover no-repeat;
      padding: 5rem 0 6rem 0;
      border-bottom: 1px solid var(--color-border-dark);
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 1.25rem;
    }
    .hero-summary {
      font-size: 1.125rem;
      color: #CBD5E1;
      line-height: 1.85;
      margin-bottom: 2rem;
    }
    .hero-actions {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 2rem;
    }
    .hero-sidecard {
      background: rgba(18, 22, 26, 0.85);
      border: 1px solid rgba(245, 130, 32, 0.35);
      border-radius: var(--radius-sm);
      padding: 2rem;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
    }
    .radar-tag {
      font-size: 0.75rem;
      padding: 2px 6px;
      border-radius: 3px;
      background: rgba(245, 130, 32, 0.2);
      color: var(--color-amber-alert);
      font-weight: 700;
    }
    .hero-live-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.75rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.875rem;
      color: #94A3B8;
    }

    /* 2. 技术底座参数表 */
    .tech-specs-box {
      background: #0D1117;
      border: 1px solid #30363D;
      border-radius: var(--radius-sm);
      padding: 1.5rem;
    }
    .spec-line {
      display: flex;
      justify-content: space-between;
      padding: 0.65rem 0;
      border-bottom: 1px solid #21262D;
      font-size: 0.875rem;
    }
    .spec-line span:first-child {
      color: #8B949E;
    }
    .spec-line span:last-child {
      color: #58A6FF;
      font-weight: 600;
    }

    /* 3. 痛点卡片标签 */
    .danger-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 3px;
      background: #FEE2E2;
      color: #991B1B;
      margin-bottom: 0.75rem;
    }

    /* 6. 流程时间轴 */
    .timeline-step {
      position: relative;
      padding-top: 2rem;
    }
    .step-number {
      font-size: 2.25rem;
      font-weight: 900;
      color: rgba(245, 130, 32, 0.35);
      line-height: 1;
      margin-bottom: 0.5rem;
    }

    /* 7. 终端攻防黑板 */
    .terminal-window {
      background: #000000;
      border: 1px solid #22272E;
      border-radius: var(--radius-sm);
      font-family: monospace;
      padding: 1.25rem;
      color: #39D353;
      font-size: 0.8125rem;
      line-height: 1.7;
      overflow-x: auto;
    }

    /* 9. 效能大看板 */
    .metric-value {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--color-amber-alert);
      line-height: 1.1;
      letter-spacing: -1px;
    }
    .metric-label {
      font-size: 0.875rem;
      color: #64748B;
      margin-top: 0.5rem;
      font-weight: 500;
    }

    /* 12. 手风琴定制 */
    .accordion-title {
      font-size: 1.0625rem !important;
      font-weight: 700 !important;
      color: var(--color-text-main) !important;
      padding: 1.25rem 1.5rem !important;
      background: #F8FAFC !important;
      border: 1px solid var(--color-border) !important;
      border-radius: var(--radius-sm) !important;
      margin-bottom: 0.5rem !important;
    }
    .accordion-title:hover {
      background: #EDF2F7 !important;
    }
    .accordion-content {
      border: 1px solid var(--color-border) !important;
      border-top: none !important;
      padding: 1.25rem 1.5rem !important;
      margin-bottom: 0.5rem !important;
      background: #FFFFFF !important;
      font-size: 0.9375rem !important;
      line-height: 1.8 !important;
      color: var(--color-text-sub) !important;
    }

    /* 表单与转化区 */
    .cta-form-panel {
      background: linear-gradient(135deg, #12161A 0%, #1A2026 100%);
      border: 1px solid rgba(245, 130, 32, 0.4);
      border-radius: var(--radius-sm);
      padding: 3rem;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
    }
    .input-defense {
      background: #0B0F12 !important;
      border: 1px solid #334155 !important;
      color: #F8FAFC !important;
      height: 46px !important;
      border-radius: 4px !important;
      padding: 0 0.85rem !important;
      font-size: 0.9375rem !important;
    }
    .input-defense:focus {
      border-color: var(--color-amber-alert) !important;
      box-shadow: 0 0 0 2px rgba(245, 130, 32, 0.25) !important;
    }

    /* 页脚 */
    .site-footer {
      background: #090C0E;
      color: #64748B;
      padding: 4.5rem 0 2rem 0;
      border-top: 1px solid #1E293B;
      font-size: 0.875rem;
    }
    .footer-col-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #CBD5E1;
      margin-bottom: 1.25rem;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.65rem;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      font-size: 0.8125rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 1rem;
    }

    @media (max-width: 1023px) {
      .hero-h1 { font-size: 2.25rem; }
      .nav-menu { display: none; }
      .section-wrap { padding: 3.5rem 0; }
      .cta-form-panel { padding: 2rem 1.5rem; }
    }
    @media (max-width: 639px) {
      .hero-h1 { font-size: 1.85rem; }
      .section-title { font-size: 1.625rem; }
      .metric-value { font-size: 2.125rem; }
    }