/* roulang page: index */
:root {
      --bg-page: #F6F7FB;
      --bg-surface: #FFFFFF;
      --bg-dark: #0E0F18;
      --bg-darker: #0A0B10;
      --brand-primary: #6328FF;
      --brand-accent: #EC38BC;
      --brand-cyan: #00E5FF;
      --brand-gradient: linear-gradient(135deg, #6328FF 0%, #EC38BC 55%, #00E5FF 100%);
      --text-main: #141624;
      --text-muted: #5A607F;
      --color-border: #E4E7F2;
      --color-success: #00C48C;
      --color-warn: #FF6B00;
      --shadow-sm: 0 4px 12px rgba(20, 22, 36, 0.04);
      --shadow-card: 0 12px 32px -8px rgba(20, 22, 36, 0.06);
      --shadow-hover: 0 20px 40px -12px rgba(99, 40, 255, 0.16);
      --radius-lg: 24px;
      --radius-md: 20px;
      --radius-sm: 12px;
      --radius-full: 999px;
      --font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
      --font-mono: 'JetBrains Mono', 'DIN Alternate', monospace;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: var(--font-family);
      font-size: 16px;
      line-height: 1.75;
      overflow-x: hidden;
    }

    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover, a:focus { color: var(--brand-primary); }
    img { max-width: 100%; height: auto; display: block; }
    h1, h2, h3, h4 { color: var(--text-main); font-weight: 700; margin-top: 0; }
    .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

    /* 徽章与通用微组件 */
    .data-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      font-size: 0.8125rem;
      font-weight: 600;
      background: rgba(99, 40, 255, 0.08);
      color: var(--brand-primary);
      border: 1px solid rgba(99, 40, 255, 0.15);
      white-space: nowrap;
    }
    .data-badge.status-green {
      background: rgba(0, 196, 140, 0.1);
      color: #009968;
      border-color: rgba(0, 196, 140, 0.25);
    }
    .data-badge.status-orange {
      background: rgba(255, 107, 0, 0.1);
      color: var(--color-warn);
      border-color: rgba(255, 107, 0, 0.25);
    }
    .badge-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: currentColor;
      box-shadow: 0 0 8px currentColor;
      animation: pulseDot 2s infinite ease-in-out;
    }
    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
    }

    .btn-brand-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: var(--radius-full);
      background: var(--brand-gradient);
      color: #fff !important;
      font-weight: 700;
      font-size: 0.9375rem;
      border: none;
      cursor: pointer;
      box-shadow: 0 8px 20px rgba(99, 40, 255, 0.25);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .btn-brand-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(99, 40, 255, 0.4);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: var(--radius-full);
      background: #FFFFFF;
      color: var(--text-main) !important;
      font-weight: 600;
      font-size: 0.9375rem;
      border: 1px solid var(--color-border);
      transition: all 0.25s ease;
    }
    .btn-outline:hover {
      border-color: var(--brand-primary);
      color: var(--brand-primary) !important;
      background: rgba(99, 40, 255, 0.03);
    }

    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 44px;
    }
    .section-header h2 {
      font-size: 2rem;
      line-height: 1.35;
      margin-top: 10px;
      margin-bottom: 12px;
    }
    .section-header p {
      color: var(--text-muted);
      max-width: 720px;
      margin-bottom: 0;
      font-size: 1.05rem;
    }

    /* 顶部微状态栏与双层导航 */
    .top-micro-bar {
      background: var(--text-main);
      color: #B5B9D0;
      font-size: 0.8125rem;
      height: 38px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-micro-bar a { color: #B5B9D0; }
    .top-micro-bar a:hover { color: #FFFFFF; }
    .nav-header-sticky {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--color-border);
    }
    .main-nav-container {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo-anchor {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
    }
    .logo-icon-chip {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: var(--brand-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.1rem;
    }
    .nav-link-list {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 26px;
    }
    .nav-link-list li a {
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 8px 0;
    }
    .nav-link-list li a:hover,
    .nav-link-list li a.active {
      color: var(--brand-primary);
    }
    .nav-link-list li a:hover::after,
    .nav-link-list li a.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 3px;
      border-radius: 3px;
      background: var(--brand-gradient);
    }
    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 板块一：Hero */
    .hero-banner-sec {
      position: relative;
      background-image: linear-gradient(to right, rgba(246, 247, 251, 0.96) 35%, rgba(246, 247, 251, 0.8) 100%), url('/assets/images/747943b55ab7207d.png');
      background-size: cover;
      background-position: center;
      padding: 70px 0 60px;
    }
    .hero-banner-sec h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-top: 14px;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .text-gradient {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.0625rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      max-width: 620px;
    }
    .hero-btn-group {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
    }
    .hero-panel-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 26px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      position: relative;
    }
    .hero-panel-card img {
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    .hero-mini-stat {
      position: absolute;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border: 1px solid var(--color-border);
      border-radius: 14px;
      padding: 10px 16px;
      box-shadow: 0 10px 24px rgba(0,0,0,0.08);
      font-size: 0.8125rem;
      z-index: 2;
    }
    .stat-floating-top { top: 12px; right: -14px; }
    .stat-floating-bottom { bottom: -12px; left: 16px; }

    /* 板块二：指标看板 */
    .metrics-dock-wrap {
      margin-top: -20px;
      position: relative;
      z-index: 10;
    }
    .metrics-dock {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
    }
    .metric-col-card {
      padding: 0 16px;
      border-right: 1px solid var(--color-border);
    }
    .metric-col-card:last-child { border-right: none; }
    .metric-num-val {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.2;
      margin: 8px 0;
    }
    .mini-progress-bar {
      height: 4px;
      width: 100%;
      background: #EAEFF8;
      border-radius: 4px;
      overflow: hidden;
      margin-top: 10px;
    }
    .mini-progress-fill {
      height: 100%;
      background: var(--brand-gradient);
      border-radius: 4px;
    }

    /* 板块三：架构与技术合规 */
    .tech-spec-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: #FFFFFF;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-top: 20px;
    }
    .tech-spec-table td {
      padding: 14px 20px;
      border-bottom: 1px solid var(--color-border);
      font-size: 0.9375rem;
    }
    .tech-spec-table tr:last-child td { border-bottom: none; }
    .tech-spec-label {
      background: #FAFBFD;
      font-weight: 600;
      color: var(--text-muted);
      width: 38%;
    }

    /* 板块四：六大优势卡片 */
    .advantage-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 30px 26px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      height: 100%;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .advantage-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(99, 40, 255, 0.4);
    }
    .adv-top-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 18px;
    }
    .adv-index-num {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--brand-primary);
    }
    .adv-tag-list {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      margin-top: 16px;
    }
    .adv-tag-item {
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
      background: #F1F3F9;
      color: var(--text-muted);
    }

    /* 板块五：矩阵产品 */
    .matrix-flagship-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      padding: 36px;
      margin-bottom: 30px;
    }
    .product-grid-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      padding: 28px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }
    .product-grid-card:hover {
      transform: translateY(-4px);
      border-color: rgba(99, 40, 255, 0.3);
    }
    .product-card-img {
      border-radius: var(--radius-sm);
      height: 180px;
      width: 100%;
      object-fit: cover;
      margin-bottom: 20px;
    }

    /* 板块六：对比板块 */
    .compare-side-box {
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      height: 100%;
    }
    .compare-side-old {
      background: #FFFFFF;
      border: 1px solid var(--color-border);
    }
    .compare-side-new {
      background: #FFFFFF;
      border: 2px solid var(--brand-primary);
      box-shadow: 0 16px 36px rgba(99, 40, 255, 0.12);
      position: relative;
    }
    .compare-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      padding: 18px 0;
      border-bottom: 1px solid #ECEEF6;
    }
    .compare-row:last-child { border-bottom: none; }

    /* 板块七：深色沉浸案例舱 */
    .dark-immersion-sec {
      background-color: var(--bg-dark);
      background-image: radial-gradient(circle at 10% 20%, rgba(99, 40, 255, 0.15) 0%, transparent 40%), radial-gradient(circle at 90% 80%, rgba(0, 229, 255, 0.12) 0%, transparent 40%);
      color: #E2E4F0;
    }
    .dark-immersion-sec h2, .dark-immersion-sec h3 { color: #FFFFFF; }
    .dark-immersion-sec p { color: #A6A9C2; }
    .case-dark-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 24px;
    }
    .case-thumb-img {
      border-radius: var(--radius-sm);
      height: 220px;
      width: 100%;
      object-fit: cover;
    }

    /* 板块八：用户故事区 */
    .story-card-flow {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--color-border);
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }

    /* 板块九：时间轴里程碑 */
    .milestone-timeline {
      position: relative;
      padding: 20px 0;
    }
    .milestone-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--color-border);
      height: 100%;
      position: relative;
    }
    .milestone-card::before {
      content: '';
      position: absolute;
      top: -12px;
      left: 24px;
      width: 24px;
      height: 4px;
      background: var(--brand-gradient);
      border-radius: 2px;
    }

    /* 板块十：通栏统计条 */
    .full-stats-strip {
      background: var(--brand-gradient);
      border-radius: var(--radius-lg);
      padding: 44px 30px;
      color: #FFFFFF;
      box-shadow: 0 20px 40px rgba(99, 40, 255, 0.25);
    }
    .stat-strip-item {
      text-align: center;
      padding: 10px 14px;
    }
    .stat-strip-item .num {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .stat-strip-item .label {
      font-size: 0.9375rem;
      opacity: 0.92;
    }

    /* 板块十一：评价卡片 */
    .review-card-item {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .star-row {
      color: #FFB800;
      font-size: 0.875rem;
      margin-bottom: 14px;
      display: flex;
      gap: 3px;
    }

    /* 板块十二：平台保障与接入 */
    .bento-mini-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-sm);
      height: 100%;
    }
    .bento-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(99, 40, 255, 0.08);
      color: var(--brand-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 16px;
    }

    /* 板块十三：行业资讯 */
    .news-card-wrapper {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--color-border);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card-wrapper:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .news-cover-img {
      height: 190px;
      width: 100%;
      object-fit: cover;
    }
    .news-body-content {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      flex-grow: 1;
    }

    /* 板块十四：FAQ与表单转化舱 */
    .faq-accordion-item {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    .faq-accordion-item[open] {
      border-color: var(--brand-primary);
      box-shadow: 0 4px 16px rgba(99, 40, 255, 0.06);
    }
    .faq-accordion-summary {
      padding: 18px 22px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      list-style: none;
      position: relative;
      outline: none;
    }
    .faq-accordion-summary::-webkit-details-marker { display: none; }
    .faq-accordion-summary::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      right: 22px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.85rem;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    .faq-accordion-item[open] .faq-accordion-summary::after {
      transform: translateY(-50%) rotate(180deg);
      color: var(--brand-primary);
    }
    .faq-content-pane {
      padding: 0 22px 20px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .form-conversion-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 38px 32px;
      border: 1px solid var(--color-border);
      box-shadow: var(--shadow-card);
    }
    .field-label {
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 6px;
      display: block;
    }
    .input-field-custom {
      width: 100%;
      height: 46px;
      border-radius: 8px;
      border: 1px solid var(--color-border);
      padding: 0 14px;
      font-size: 0.9375rem;
      margin-bottom: 16px;
      outline: none;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .input-field-custom:focus {
      border-color: var(--brand-primary);
      box-shadow: 0 0 0 3px rgba(99, 40, 255, 0.15);
    }

    /* 页脚 */
    .site-footer-sec {
      background: var(--bg-darker);
      color: #A1A5BF;
      padding: 70px 0 30px;
      border-top: 2px solid;
      border-image: var(--brand-gradient) 1;
      font-size: 0.9375rem;
    }
    .footer-title-h4 {
      color: #FFFFFF;
      font-size: 1.05rem;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .footer-link-group {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-link-group li { margin-bottom: 10px; }
    .footer-link-group a { color: #A1A5BF; }
    .footer-link-group a:hover { color: var(--brand-cyan); }
    .footer-bottom-line {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 0.8125rem;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }

    @media (max-width: 1024px) {
      .metric-col-card { border-right: none; margin-bottom: 20px; }
    }
    @media (max-width: 768px) {
      .top-micro-bar { display: none; }
      .nav-link-list { display: none; }
      .mobile-menu-btn { display: block; }
      .hero-banner-sec h1 { font-size: 1.85rem; }
      .section-header h2 { font-size: 1.5rem; }
      .stat-strip-item .num { font-size: 1.8rem; }
      .section-wrap { padding: 50px 0; }
      .hero-panel-card { margin-top: 30px; }
      .stat-floating-top, .stat-floating-bottom { position: static; margin: 10px 0; }
    }