/* roulang page: index */
:root {
      --primary: #0A2540;
      --primary-light: #0E3A4A;
      --accent: #FF6B35;
      --signal: #00D084;
      --bg-light: #F8FAFC;
      --bg-alt: #F1F5F9;
      --bg-dark: #0B1528;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #E2E8F0;
      --border: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 25px -5px rgba(10,37,64,0.08), 0 8px 10px -6px rgba(10,37,64,0.05);
      --shadow-lg: 0 20px 30px -10px rgba(10,37,64,0.15);
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select {
      font: inherit;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .top-meta-bar {
      background-color: var(--bg-dark);
      color: var(--text-light);
      font-size: 12px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-meta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--signal);
    }
    .status-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--signal);
      box-shadow: 0 0 6px var(--signal);
    }
    .nav-main {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .logo-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 4px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 22px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #fff;
      box-shadow: 0 4px 14px rgba(255, 107, 53, 0.28);
    }
    .btn-primary:hover {
      background-color: #E85B27;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
    }
    .btn-outline {
      border-color: var(--border);
      background-color: #fff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--bg-alt);
    }
    .btn-dark {
      background-color: var(--primary);
      color: #fff;
    }
    .btn-dark:hover {
      background-color: var(--primary-light);
    }
    .section {
      padding: 84px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }
    .section-header-left {
      text-align: left;
      margin: 0 0 40px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      background-color: rgba(255, 107, 53, 0.1);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 14px;
      letter-spacing: 0.04em;
    }
    .section-tag-dark {
      color: var(--signal);
      background-color: rgba(0, 208, 132, 0.15);
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.35;
      color: var(--primary);
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-dark .section-title {
      color: #fff;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }
    .hero-roadmap {
      background: radial-gradient(circle at 80% 20%, rgba(14, 58, 74, 0.95), var(--bg-dark) 85%);
      color: #fff;
      padding: 72px 0 88px;
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      inset: 0;
      opacity: 0.15;
      mix-blend-mode: overlay;
      pointer-events: none;
    }
    .hero-bg-overlay img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .hero-content-wrapper {
      position: relative;
      z-index: 2;
    }
    .roadmap-badge-bar {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.16);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 13px;
      margin-bottom: 24px;
      backdrop-filter: blur(8px);
    }
    .roadmap-badge-highlight {
      background-color: var(--signal);
      color: var(--bg-dark);
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 12px;
      font-size: 11px;
    }
    .hero-title {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
      max-width: 860px;
    }
    .hero-lead {
      font-size: 17px;
      line-height: 1.85;
      color: #CBD5E1;
      max-width: 740px;
      margin-bottom: 36px;
    }
    .roadmap-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: rgba(11, 21, 40, 0.7);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 36px;
      backdrop-filter: blur(10px);
    }
    .node-item {
      border-left: 2px solid rgba(255, 255, 255, 0.2);
      padding-left: 14px;
    }
    .node-item.node-active {
      border-left-color: var(--signal);
    }
    .node-ver {
      font-size: 12px;
      font-weight: 700;
      color: var(--signal);
      text-transform: uppercase;
      margin-bottom: 4px;
    }
    .node-name {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
    }
    .node-desc {
      font-size: 12px;
      color: #94A3B8;
      line-height: 1.5;
    }
    .hero-subscribe-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      max-width: 580px;
    }
    .hero-input {
      flex: 1;
      min-width: 260px;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.24);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .hero-input:focus {
      border-color: var(--signal);
      background: rgba(255, 255, 255, 0.14);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 36px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .card {
      background-color: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #CBD5E1;
    }
    .card-highlight {
      border: 2px solid var(--accent);
      position: relative;
      background: #FFFFFF;
      box-shadow: var(--shadow-md);
    }
    .card-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background-color: var(--accent);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }
    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background-color: rgba(10, 37, 64, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .card-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .card-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .feature-list {
      list-style: none;
      margin-top: 12px;
    }
    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-item svg {
      flex-shrink: 0;
      margin-top: 3px;
      color: var(--signal);
    }
    .catalog-table {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .catalog-row {
      display: grid;
      grid-template-columns: 140px 220px 1fr 140px;
      padding: 22px 28px;
      border-bottom: 1px solid var(--border);
      align-items: center;
      transition: var(--transition);
    }
    .catalog-row:last-child {
      border-bottom: none;
    }
    .catalog-row:hover {
      background-color: #F8FAFC;
    }
    .catalog-stage {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .catalog-subject {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
    }
    .catalog-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      padding-right: 20px;
    }
    .catalog-status {
      font-size: 13px;
      font-weight: 600;
      text-align: right;
      color: var(--accent);
    }
    .expert-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .expert-card:hover {
      box-shadow: var(--shadow-md);
    }
    .expert-media {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .expert-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .expert-card:hover .expert-media img {
      transform: scale(1.04);
    }
    .expert-body {
      padding: 24px;
    }
    .expert-role {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 6px;
    }
    .expert-name {
      font-size: 19px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .expert-bio {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .outcome-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .outcome-stat {
      font-size: 38px;
      font-weight: 800;
      color: var(--accent);
      line-height: 1.1;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }
    .outcome-label {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .outcome-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .trial-terminal {
      background: #061325;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 36px;
      color: #fff;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      align-items: center;
    }
    .terminal-screen {
      background: #020914;
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-sm);
      padding: 20px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      color: #38BDF8;
      line-height: 1.8;
    }
    .news-card-wide {
      display: grid;
      grid-template-columns: 320px 1fr;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 24px;
    }
    .news-media {
      height: 100%;
      min-height: 200px;
    }
    .news-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 28px 32px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .news-meta {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .news-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .news-item-sm {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px;
    }
    .news-item-sm .news-title {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .form-card {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 44px;
      max-width: 780px;
      margin: 0 auto;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border);
    }
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-control {
      padding: 12px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 15px;
      outline: none;
      transition: var(--transition);
      background-color: #FAFAFA;
    }
    .form-control:focus {
      border-color: var(--primary);
      background-color: #fff;
      box-shadow: 0 0 0 3px rgba(10, 37, 64, 0.08);
    }
    .form-privacy {
      font-size: 12px;
      color: var(--text-muted);
      text-align: center;
      margin-top: 14px;
    }
    .site-footer {
      background-color: var(--bg-dark);
      color: #94A3B8;
      font-size: 14px;
      border-top: 1px solid var(--border-dark);
      padding-top: 64px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-link {
      color: #94A3B8;
    }
    .footer-link:hover {
      color: #fff;
    }
    .footer-contact-item {
      margin-bottom: 8px;
      line-height: 1.6;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }
    @media (max-width: 1024px) {
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .roadmap-timeline { grid-template-columns: repeat(2, 1fr); }
      .catalog-row { grid-template-columns: 100px 180px 1fr 100px; }
      .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
    }
    @media (max-width: 768px) {
      .top-meta-bar { display: none; }
      .nav-links { display: none; }
      .hero-title { font-size: 32px; }
      .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
      .catalog-row { grid-template-columns: 1fr; gap: 8px; }
      .catalog-status { text-align: left; }
      .trial-terminal { grid-template-columns: 1fr; }
      .news-card-wide { grid-template-columns: 1fr; }
      .news-list { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-card { padding: 28px 20px; }
      .footer-grid { grid-template-columns: 1fr; }
    }