/* roulang page: index */
:root {
    --c-primary: #0e2f44;
    --c-primary-light: #1b4a6b;
    --c-accent: #0ea5e9;
    --c-accent-dark: #0284c7;
    --c-warm: #f59e0b;
    --c-bg: #f5f7fa;
    --c-text: #1e293b;
    --c-text-muted: #64748b;
    --c-border: #e2e8f0;
    --c-white: #ffffff;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow-card: 0 4px 24px rgba(14, 47, 68, 0.08);
    --shadow-hover: 0 12px 32px rgba(14, 47, 68, 0.14);
    --transition: all 0.3s ease;
  }
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--c-bg);
    color: var(--c-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    margin: 0;
  }
  img { max-width: 100%; height: auto; display: block; }
  a { text-decoration: none; color: inherit; transition: var(--transition); }
  button, input { font-family: inherit; }
  .container-cus {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }
  @media (max-width: 768px) {
    .container-cus { padding: 0 16px; }
  }
  /* header & nav */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 2px 12px rgba(14, 47, 68, 0.06);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
  }
  .logo-text {
    font-size: 22px;
    font-weight: 800;
    color: var(--c-primary);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #0e2f44 0%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
  }
  .logo-text .logo-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--c-warm);
    border-radius: 50%;
    margin-right: 2px;
    -webkit-text-fill-color: initial;
  }
  .main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
  }
  .main-nav .nav-item {
    position: relative;
    padding: 8px 2px;
  }
  .main-nav .nav-link {
    display: inline-block;
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--c-text);
    border-radius: 10px;
    transition: var(--transition);
  }
  .main-nav .nav-link:hover {
    color: var(--c-accent-dark);
    background: #f0f9ff;
  }
  .main-nav .nav-link.active {
    color: var(--c-accent-dark);
    background: #e0f2fe;
    font-weight: 600;
  }
  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-dark) 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 50px;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.35);
    transition: var(--transition);
  }
  .nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.45);
    color: #fff;
  }
  /* dropdown */
  .dropdown-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 540px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(14, 47, 68, 0.15);
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: 999;
  }
  .nav-item:hover .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(4px);
  }
  .dropdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .dropdown-card {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 14px;
    border-radius: 14px;
    background: var(--c-bg);
    transition: var(--transition);
  }
  .dropdown-card:hover {
    background: #f0f9ff;
  }
  .dropdown-card img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 12px;
    flex-shrink: 0;
  }
  .dropdown-card h4 { font-size: 15px; font-weight: 700; margin: 0 0 4px; color: var(--c-primary); }
  .dropdown-card p { font-size: 13px; margin: 0; color: var(--c-text-muted); line-height: 1.5; }
  .mega-footer {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--c-text-muted);
  }
  .mega-footer a { color: var(--c-accent-dark); font-weight: 600; }
  .menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 18px;
    color: var(--c-primary);
    cursor: pointer;
  }
  /* mobile nav */
  .mobile-menu {
    display: none;
    background: #fff;
    border-top: 1px solid var(--c-border);
    padding: 16px 20px 20px;
  }
  .mobile-menu ul { list-style: none; margin: 0; padding: 0; }
  .mobile-menu li { margin-bottom: 8px; }
  .mobile-menu a {
    display: block;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 500;
    color: var(--c-text);
    background: var(--c-bg);
  }
  .mobile-menu a.active { background: #e0f2fe; color: var(--c-accent-dark); font-weight: 600; }
  @media (max-width: 1024px) {
    .main-nav, .header-cta-desktop { display: none; }
    .menu-toggle { display: inline-flex; }
    .mobile-menu.open { display: block; }
  }
  /* hero */
  .hero {
    position: relative;
    background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    padding: 120px 0 100px;
    color: #fff;
    overflow: hidden;
  }
  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14, 47, 68, 0.88) 0%, rgba(14, 47, 68, 0.65) 50%, rgba(2, 132, 199, 0.55) 100%);
  }
  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    backdrop-filter: blur(6px);
    margin-bottom: 24px;
  }
  .hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 20px;
    letter-spacing: -1px;
  }
  .hero p.lead {
    font-size: 18px;
    line-height: 1.8;
    margin: 0 0 36px;
    color: rgba(255, 255, 255, 0.88);
  }
  .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
  }
  .btn-primary {
    background: #fff;
    color: var(--c-primary);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.12);
  }
  .btn-primary:hover {
    background: var(--c-warm);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(245, 158, 11, 0.35);
  }
  .btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
  }
  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    transform: translateY(-3px);
  }
  .hero-stats {
    position: relative;
    z-index: 2;
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 760px;
  }
  .hero-stat .num {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
    display: block;
    color: #fff;
  }
  .hero-stat .label {
    font-size: 13px;
    opacity: 0.75;
    margin-top: 6px;
    display: block;
  }
  @media (max-width: 768px) {
    .hero { padding: 80px 0 60px; }
    .hero h1 { font-size: 34px; }
    .hero p.lead { font-size: 16px; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  }
  /* section base */
  .section { padding: 90px 0; }
  .section-alt { background: #fff; }
  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
  }
  .section-head .tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--c-accent-dark);
    background: #e0f2fe;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
  }
  .section-head h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--c-primary);
    margin: 0 0 14px;
    line-height: 1.3;
  }
  .section-head p {
    font-size: 16px;
    color: var(--c-text-muted);
    margin: 0;
    line-height: 1.8;
  }
  @media (max-width: 768px) {
    .section { padding: 60px 0; }
    .section-head h2 { font-size: 26px; }
    .section-head { margin-bottom: 40px; }
  }
  /* cards */
  .card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(14, 47, 68, 0.04);
    height: 100%;
  }
  .card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: #bae6fd;
  }
  .service-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--c-accent-dark);
    margin-bottom: 20px;
  }
  .service-card h3 { font-size: 20px; font-weight: 700; color: var(--c-primary); margin: 0 0 10px; }
  .service-card p { font-size: 15px; color: var(--c-text-muted); margin: 0 0 16px; line-height: 1.7; }
  .service-card .card-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--c-accent-dark);
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .service-card .card-link:hover { gap: 10px; }
  /* cover cards */
  .cover-card {
    border-radius: var(--radius);
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--c-border);
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(14, 47, 68, 0.04);
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  .cover-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }
  .cover-card .cover-img {
    height: 200px;
    overflow: hidden;
    position: relative;
  }
  .cover-card .cover-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }
  .cover-card:hover .cover-img img { transform: scale(1.05); }
  .cover-card .cover-body {
    padding: 20px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }
  .cover-card .cover-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--c-accent-dark);
    background: #e0f2fe;
    border-radius: 50px;
    padding: 4px 14px;
    margin-bottom: 12px;
    align-self: flex-start;
  }
  .cover-card h3 { font-size: 18px; font-weight: 700; color: var(--c-primary); margin: 0 0 8px; }
  .cover-card p { font-size: 14px; color: var(--c-text-muted); margin: 0 0 16px; line-height: 1.6; flex: 1; }
  .cover-card .cover-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--c-text-muted);
    border-top: 1px solid var(--c-border);
    padding-top: 14px;
  }
  .cover-card .read-more {
    font-weight: 600;
    color: var(--c-accent-dark);
    display: inline-flex;
    align-items: center;
    gap: 4px;
  }
  /* feature split */
  .split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }
  .split-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    position: relative;
  }
  .split-image img {
    width: 100%;
    height: 420px;
    object-fit: cover;
  }
  .split-image .img-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 14px;
    padding: 14px 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    font-size: 14px;
    font-weight: 600;
    color: var(--c-primary);
  }
  .feature-list { list-style: none; margin: 24px 0 0; padding: 0; }
  .feature-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid var(--c-border);
    font-size: 15px;
    line-height: 1.6;
    color: var(--c-text);
  }
  .feature-list li:last-child { border-bottom: none; }
  .feature-list .check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #d1fae5;
    color: #059669;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    flex-shrink: 0;
    margin-top: 2px;
  }
  @media (max-width: 900px) {
    .split-grid { grid-template-columns: 1fr; gap: 40px; }
    .split-image img { height: 280px; }
  }
  /* process timeline */
  .process-wrap {
    position: relative;
    padding: 20px 0;
  }
  .process-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    position: relative;
    z-index: 2;
  }
  .process-line {
    position: absolute;
    top: 46px;
    left: 6%;
    right: 6%;
    height: 3px;
    background: linear-gradient(90deg, #bae6fd, #0ea5e9, #bae6fd);
    border-radius: 4px;
    z-index: 1;
  }
  .process-node {
    text-align: center;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 28px 16px 24px;
    box-shadow: 0 4px 16px rgba(14, 47, 68, 0.06);
    transition: var(--transition);
    height: 100%;
  }
  .process-node:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
  }
  .process-node .node-num {
    width: 44px;
    height: 44px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
  }
  .process-node h4 { font-size: 16px; font-weight: 700; margin: 0 0 8px; color: var(--c-primary); }
  .process-node p { font-size: 13px; color: var(--c-text-muted); margin: 0; line-height: 1.5; }
  @media (max-width: 1024px) {
    .process-grid { grid-template-columns: repeat(3, 1fr); }
    .process-line { display: none; }
  }
  @media (max-width: 768px) {
    .process-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 480px) {
    .process-grid { grid-template-columns: 1fr; }
  }
  /* stats band */
  .stats-band {
    background: var(--c-primary);
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    padding: 60px 0;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
  }
  .stat-item .stat-num {
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    line-height: 1;
  }
  .stat-item .stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    margin-top: 10px;
  }
  .stat-item .stat-icon {
    font-size: 24px;
    color: var(--c-warm);
    margin-bottom: 12px;
  }
  @media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .stat-item .stat-num { font-size: 28px; }
  }
  /* news list */
  .news-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 16px;
    padding: 18px 20px;
    transition: var(--transition);
    align-items: center;
  }
  .news-card:hover {
    box-shadow: var(--shadow-card);
    border-color: #bae6fd;
    transform: translateX(4px);
  }
  .news-card .news-tag {
    font-size: 12px;
    font-weight: 600;
    color: var(--c-accent-dark);
    background: #e0f2fe;
    padding: 4px 12px;
    border-radius: 50px;
    white-space: nowrap;
  }
  .news-card .news-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--c-primary);
    margin: 0;
    line-height: 1.5;
    flex: 1;
  }
  .news-card .news-title:hover { color: var(--c-accent-dark); }
  .news-card .news-date {
    font-size: 13px;
    color: var(--c-text-muted);
    white-space: nowrap;
  }
  @media (max-width: 768px) {
    .news-card { flex-wrap: wrap; gap: 10px; }
    .news-card .news-date { width: 100%; }
  }
  /* FAQ */
  .faq-list { max-width: 800px; margin: 0 auto; }
  .faq-item {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
  }
  .faq-item:hover { box-shadow: var(--shadow-card); }
  .faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--c-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    gap: 16px;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 14px;
    color: var(--c-accent-dark);
    transition: transform 0.3s;
    flex-shrink: 0;
  }
  .faq-item[open] summary::after { transform: rotate(180deg); }
  .faq-item .faq-body {
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--c-text-muted);
    line-height: 1.8;
  }
  /* CTA */
  .cta-section {
    background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
    position: relative;
    padding: 100px 0;
    color: #fff;
    text-align: center;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14, 47, 68, 0.85), rgba(14, 165, 233, 0.7));
  }
  .cta-content { position: relative; z-index: 2; max-width: 680px; margin: 0 auto; }
  .cta-content h2 { font-size: 36px; font-weight: 800; margin-bottom: 18px; }
  .cta-content p { font-size: 17px; opacity: 0.9; margin-bottom: 32px; line-height: 1.7; }
  @media (max-width: 768px) {
    .cta-section { padding: 70px 0; }
    .cta-content h2 { font-size: 28px; }
  }
  /* footer */
  .site-footer {
    background: #0b2433;
    color: #94a3b8;
    padding: 70px 0 0;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .footer-brand .footer-logo {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
    display: inline-block;
  }
  .footer-brand p { font-size: 14px; line-height: 1.8; margin: 0 0 20px; }
  .footer-social {
    display: flex;
    gap: 12px;
  }
  .footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 14px;
    transition: var(--transition);
  }
  .footer-social a:hover {
    background: var(--c-accent);
    color: #fff;
    transform: translateY(-3px);
  }
  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
  }
  .footer-links { list-style: none; margin: 0; padding: 0; }
  .footer-links li { margin-bottom: 12px; }
  .footer-links a { font-size: 14px; color: #94a3b8; transition: var(--transition); }
  .footer-links a:hover { color: #fff; padding-left: 4px; }
  .footer-contact { list-style: none; margin: 0; padding: 0; }
  .footer-contact li {
    display: flex;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 14px;
    color: #94a3b8;
  }
  .footer-contact i { color: var(--c-accent); width: 16px; margin-top: 3px; }
  .footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: #64748b;
  }
  @media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  }
  @media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr; }
  }
  /* misc */
  .badge-std {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: var(--c-primary);
    padding: 5px 14px;
    border-radius: 50px;
    margin: 4px 4px 0 0;
  }
  .badge-std.warm { background: var(--c-warm); }
  .badge-std.accent { background: var(--c-accent); }
  .text-gradient {
    background: linear-gradient(135deg, #0ea5e9, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #fff;
    color: var(--c-primary);
    padding: 10px 20px;
    z-index: 2000;
    border-radius: 0 0 8px 0;
  }
  .skip-link:focus { left: 0; }
  :focus-visible {
    outline: 3px solid rgba(14, 165, 233, 0.5);
    outline-offset: 2px;
  }
  .card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  @media (max-width: 1024px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); }
  }
  @media (max-width: 640px) {
    .card-grid { grid-template-columns: 1fr; }
  }
  .two-col-gap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
  @media (max-width: 900px) {
    .two-col-gap { grid-template-columns: 1fr; }
  }

/* roulang page: category1 */
:root {
            --primary: #0c2d48;
            --primary-dark: #081426;
            --primary-light: #123a5c;
            --accent: #e8923e;
            --accent-dark: #d17b24;
            --accent-light: #f5b166;
            --ink: #122333;
            --muted: #5a6b7a;
            --surf: #f4f7fb;
            --border: #e6ecf2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(12, 45, 72, .08);
            --shadow-lg: 0 16px 44px rgba(12, 45, 72, .13);
            --transition: all .25s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            background: #fff;
            color: var(--ink);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        section {
            position: relative;
        }
        .section {
            padding: 84px 0;
        }
        .container-cus {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(230, 236, 242, .8);
            box-shadow: 0 2px 20px rgba(12, 45, 72, .04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }
        .logo-text {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(232, 146, 62, .18);
        }
        .main-nav {
            flex: 1;
        }
        .main-nav>ul {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            color: #3d4f60;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--surf);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(12, 45, 72, .08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            width: 620px;
            background: #fff;
            border-radius: 18px;
            padding: 22px;
            box-shadow: 0 20px 50px rgba(12, 45, 72, .16);
            border: 1px solid #edf1f5;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 60;
        }
        .has-dropdown:hover .dropdown-panel,
        .has-dropdown:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .dropdown-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px;
            border-radius: 12px;
            background: #fbfcfe;
            border: 1px solid #f0f3f6;
            transition: var(--transition);
        }
        .dropdown-card:hover {
            background: #fff;
            border-color: rgba(232, 146, 62, .3);
            box-shadow: 0 6px 16px rgba(12, 45, 72, .06);
        }
        .dropdown-card img {
            width: 56px;
            height: 44px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .dropdown-card h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 2px;
        }
        .dropdown-card p {
            font-size: 12px;
            color: var(--muted);
            line-height: 1.4;
        }
        .mega-footer {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid #edf1f5;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--muted);
        }
        .mega-footer a {
            color: var(--accent-dark);
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .mega-footer a:hover {
            gap: 10px;
        }
        .header-cta-desktop {
            flex-shrink: 0;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 11px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(12, 45, 72, .18);
        }
        .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(12, 45, 72, .22);
        }
        .menu-toggle {
            display: none;
            background: transparent;
            font-size: 22px;
            color: var(--primary);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
        }
        .mobile-menu {
            display: none;
            padding: 12px 20px 20px;
            background: #fff;
            border-top: 1px solid #edf1f5;
        }
        .mobile-menu ul {
            list-style: none;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
        }
        .mobile-menu a:hover {
            background: var(--surf);
            color: var(--primary);
        }
        .mobile-menu a.active {
            background: rgba(12, 45, 72, .08);
            color: var(--primary);
        }
        /* Hero */
        .page-hero {
            background-size: cover;
            background-position: center;
            min-height: 460px;
            display: flex;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(232, 146, 62, .35);
            color: #f5b166;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .18);
            color: rgba(255, 255, 255, .82);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
        }
        /* 通用按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 13px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(232, 146, 62, .25);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(232, 146, 62, .35);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid rgba(255, 255, 255, .5);
            color: #fff;
            padding: 11px 26px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid rgba(12, 45, 72, .2);
            color: var(--primary);
            padding: 11px 26px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(12, 45, 72, .04);
        }
        /* 板块标题 */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-dark);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--primary);
            letter-spacing: -.5px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--muted);
            margin-top: 12px;
        }
        /* 数据卡 */
        .stat-card {
            background: var(--surf);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: rgba(232, 146, 62, .3);
        }
        .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 8px;
        }
        /* 服务卡片 */
        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 24px;
            transition: var(--transition);
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 146, 62, .25);
        }
        .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: rgba(12, 45, 72, .08);
            color: var(--primary);
            margin-bottom: 18px;
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
        }
        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .tag-sm {
            display: inline-flex;
            align-items: center;
            background: var(--surf);
            border: 1px solid var(--border);
            color: #4a5b6b;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
        }
        /* 流程 */
        .process-step {
            position: relative;
            padding: 24px 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            transition: var(--transition);
            height: 100%;
        }
        .process-step:hover {
            box-shadow: var(--shadow);
            border-color: rgba(232, 146, 62, .3);
        }
        .step-no {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .step-line {
            position: absolute;
            top: 44px;
            right: -18%;
            width: 36%;
            height: 2px;
            border-top: 2px dashed #cfdbe5;
        }
        /* 标准标签 */
        .standard-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .standard-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            color: #cddae6;
            padding: 9px 20px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }
        .standard-tags span:hover {
            background: rgba(232, 146, 62, .2);
            border-color: rgba(232, 146, 62, .4);
            color: #fff;
        }
        .capability-card {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 18px;
            padding: 28px;
            transition: var(--transition);
        }
        .capability-card:hover {
            background: rgba(255, 255, 255, .07);
            border-color: rgba(232, 146, 62, .3);
            transform: translateY(-4px);
        }
        /* 行业 */
        .industry-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px 20px;
            font-weight: 600;
            color: var(--ink);
            transition: var(--transition);
        }
        .industry-item i {
            color: var(--accent);
        }
        .industry-item:hover {
            border-color: rgba(232, 146, 62, .4);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 146, 62, .3);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--ink);
            cursor: pointer;
            gap: 18px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--accent);
            font-size: 18px;
            transition: transform .3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }
        /* CTA */
        .cta-box {
            background: var(--primary);
            border-radius: 24px;
            padding: 52px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(232, 146, 62, .25), transparent 60%);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -80%;
            left: -5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, .06), transparent 60%);
        }
        .cta-box>* {
            position: relative;
            z-index: 1;
        }
        /* Footer */
        .site-footer {
            background: #081426;
            color: #9aabbb;
            padding: 72px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo::before {
            content: '';
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #cddae6;
            font-size: 16px;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 12px;
            font-size: 14px;
        }
        .footer-links a {
            color: #9aabbb;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            color: #9aabbb;
        }
        .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #6b7c8c;
        }
        /* 焦点状态 */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(232, 146, 62, .5);
            outline-offset: 2px;
            border-radius: 6px;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .dropdown-panel {
                width: 560px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .main-nav,
            .header-cta-desktop {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .mobile-menu.open {
                display: block;
            }
            .dropdown-panel {
                display: none;
            }
            .section-title {
                font-size: 26px;
            }
            .page-hero {
                min-height: 400px;
            }
        }
        @media (max-width: 520px) {
            .container-cus {
                padding: 0 18px;
            }
            .section {
                padding: 52px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .stat-num {
                font-size: 30px;
            }
            .hero-tags span {
                font-size: 12px;
                padding: 5px 12px;
            }
            .process-step {
                padding: 18px;
            }
            .step-line {
                display: none;
            }
        }

/* roulang page: article */
:root {
    --brand-900: #0c355a;
    --brand-800: #0d4173;
    --brand-700: #0f559b;
    --brand-600: #0d6bc2;
    --brand-500: #0e85e3;
    --accent: #f5a623;
    --bg-light: #f7fafc;
    --bg-slate: #f1f5f9;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
}
button {
    font-family: inherit;
    cursor: pointer;
}
.container-cus {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    box-shadow: 0 2px 20px rgba(15, 23, 42, 0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    gap: 24px;
}
.logo-text {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--brand-900);
    letter-spacing: -0.5px;
    white-space: nowrap;
    transition: color var(--transition);
}
.logo-text:hover {
    color: var(--brand-600);
}
.logo-dot {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    background: linear-gradient(135deg, #0e85e3, #f5a623);
    box-shadow: 0 0 0 4px rgba(14, 133, 227, 0.12);
    flex-shrink: 0;
}
.main-nav {
    display: flex;
    align-items: center;
}
.main-nav > ul {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 8px;
}
.nav-item {
    position: relative;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #334155;
    border-radius: 10px;
    transition: all var(--transition);
}
.nav-link:hover {
    color: var(--brand-600);
    background: rgba(14, 133, 227, 0.06);
}
.nav-link.active {
    color: var(--brand-700);
    background: rgba(14, 133, 227, 0.1);
}
.nav-link.active::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 4px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--brand-500), var(--accent));
}
.dropdown-panel {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 620px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1200;
}
.nav-item.has-dropdown:hover .dropdown-panel,
.nav-item.has-dropdown:focus-within .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.dropdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.dropdown-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 14px;
    transition: all var(--transition);
}
.dropdown-card:hover {
    background: #f0f7ff;
    transform: translateX(4px);
}
.dropdown-card img {
    width: 60px;
    height: 48px;
    object-fit: cover;
    border-radius: 10px;
    flex-shrink: 0;
}
.dropdown-card h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--brand-900);
    margin: 0 0 4px;
}
.dropdown-card p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.4;
}
.mega-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}
.mega-footer a {
    color: var(--brand-600);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}
.mega-footer a:hover {
    color: var(--accent-dark);
}
.header-cta-desktop {
    flex-shrink: 0;
}
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 4px 16px rgba(14, 133, 227, 0.3);
    transition: all var(--transition);
}
.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(14, 133, 227, 0.4);
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--brand-900);
    padding: 8px;
    border-radius: 10px;
    transition: background var(--transition);
}
.menu-toggle:hover {
    background: rgba(14, 133, 227, 0.08);
}
.mobile-menu {
    display: none;
    padding: 20px;
    border-top: 1px solid var(--border);
    background: #fff;
}
.mobile-menu.open {
    display: block;
}
.mobile-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.mobile-menu li + li {
    margin-top: 8px;
}
.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-dark);
    transition: all var(--transition);
}
.mobile-menu a:hover,
.mobile-menu a.active {
    background: rgba(14, 133, 227, 0.08);
    color: var(--brand-700);
}
.page-hero {
    position: relative;
    padding: 80px 0 72px;
    background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    color: #fff;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 43, 74, 0.96) 0%, rgba(13, 65, 115, 0.88) 45%, rgba(14, 133, 227, 0.62) 100%);
    z-index: 1;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    opacity: 0.06;
    z-index: 1;
}
.page-hero .container-cus {
    position: relative;
    z-index: 2;
}
.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
}
.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.75);
    transition: color var(--transition);
}
.breadcrumb-nav a:hover {
    color: #fff;
}
.breadcrumb-nav i {
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.4);
}
.breadcrumb-nav span {
    color: rgba(255, 255, 255, 0.95);
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.page-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
    margin-bottom: 20px;
}
.page-title {
    font-size: clamp(1.9rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 24px;
    letter-spacing: -0.5px;
    max-width: 820px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.page-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
}
.page-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.page-meta i {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}
.article-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    padding: 40px;
    border: 1px solid var(--border);
}
.article-body {
    font-size: 1rem;
    line-height: 1.9;
    color: #334155;
    word-wrap: break-word;
}
.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand-900);
    margin: 2.2rem 0 1rem;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(14, 133, 227, 0.15);
}
.article-body h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--brand-800);
    margin: 1.8rem 0 0.8rem;
}
.article-body h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--brand-800);
    margin: 1.5rem 0 0.6rem;
}
.article-body p {
    margin: 0 0 1.25rem;
}
.article-body a {
    color: var(--brand-600);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--transition);
}
.article-body a:hover {
    color: var(--accent-dark);
}
.article-body ul,
.article-body ol {
    margin: 1rem 0 1.5rem;
    padding-left: 1.6rem;
}
.article-body li {
    margin: 0.4rem 0;
}
.article-body img {
    border-radius: 14px;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}
.article-body blockquote {
    border-left: 4px solid var(--brand-500);
    background: rgba(14, 133, 227, 0.05);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--brand-800);
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    border-radius: 12px;
    overflow: hidden;
}
.article-body th,
.article-body td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}
.article-body th {
    background: rgba(14, 133, 227, 0.08);
    font-weight: 700;
    color: var(--brand-900);
}
.article-body tr:nth-child(even) td {
    background: var(--bg-light);
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-light);
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all var(--transition);
}
.tag:hover {
    border-color: var(--brand-400);
    color: var(--brand-700);
    background: rgba(14, 133, 227, 0.06);
}
.article-footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    box-shadow: 0 4px 18px rgba(14, 133, 227, 0.3);
    transition: all var(--transition);
    text-align: center;
    justify-content: center;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(14, 133, 227, 0.4);
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(14, 133, 227, 0.3);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--brand-700);
    font-size: 0.95rem;
    font-weight: 700;
    border: 2px solid rgba(14, 133, 227, 0.4);
    border-radius: 50px;
    transition: all var(--transition);
    text-align: center;
    justify-content: center;
}
.btn-outline:hover {
    border-color: var(--brand-500);
    background: rgba(14, 133, 227, 0.06);
}
.btn-outline-light {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
}
.btn-outline-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}
.btn-large {
    padding: 14px 32px;
    font-size: 1rem;
}
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.sidebar-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.sidebar-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--brand-900);
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.sidebar-title i {
    color: var(--brand-500);
}
.sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.sidebar-list li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.85rem;
}
.sidebar-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.sidebar-list span {
    color: var(--text-muted);
    flex-shrink: 0;
}
.sidebar-list strong {
    color: var(--text-dark);
    text-align: right;
    font-weight: 600;
}
.sidebar-cta {
    background: linear-gradient(135deg, var(--brand-900), var(--brand-600));
    border-radius: 16px;
    padding: 28px 24px;
    color: #fff;
    text-align: center;
}
.sidebar-cta h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 10px;
}
.sidebar-cta p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 18px;
    line-height: 1.6;
}
.sidebar-cta .btn-primary {
    background: #fff;
    color: var(--brand-800);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    width: 100%;
    margin-bottom: 10px;
}
.sidebar-cta .btn-outline-light {
    width: 100%;
}
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-overline {
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--brand-500);
    font-weight: 800;
    display: block;
    margin-bottom: 12px;
}
.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand-900);
    margin: 0 0 12px;
    letter-spacing: -0.5px;
}
.section-desc {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0;
}
.news-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    display: block;
    height: 100%;
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(14, 133, 227, 0.3);
}
.news-card-img {
    position: relative;
    height: 180px;
    overflow: hidden;
}
.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-card:hover .news-card-img img {
    transform: scale(1.06);
}
.news-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--brand-700);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.news-card-body {
    padding: 20px;
}
.news-card-body h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--brand-900);
    margin: 0 0 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-body p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0 0 12px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.cta-section {
    background: linear-gradient(135deg, var(--brand-950), var(--brand-700) 60%, rgba(14, 133, 227, 0.85));
    padding: 88px 24px;
    position: relative;
    overflow: hidden;
    color: #fff;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    opacity: 0.12;
}
.cta-section .container-cus {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
}
.cta-section p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 620px;
    margin: 0 auto;
}
.not-found-card {
    background: #fff;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}
.site-footer {
    background: var(--brand-950);
    color: rgba(255, 255, 255, 0.8);
    padding: 64px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1.1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-brand .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin: 0 0 20px;
    max-width: 320px;
}
.footer-social {
    display: flex;
    gap: 12px;
}
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    transition: all var(--transition);
}
.footer-social a:hover {
    background: rgba(14, 133, 227, 0.4);
    color: #fff;
    transform: translateY(-3px);
}
.footer-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin: 0 0 18px;
    position: relative;
    padding-bottom: 12px;
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--brand-400), var(--accent));
}
.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.88rem;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-links a::before {
    content: '›';
    font-size: 1rem;
    color: var(--accent);
    transition: transform var(--transition);
}
.footer-links a:hover {
    color: #fff;
    transform: translateX(4px);
}
.footer-contact {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
    line-height: 1.5;
}
.footer-contact i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 0.9rem;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.4);
}
.footer-bottom p {
    margin: 0;
}
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .dropdown-panel {
        width: 540px;
    }
    .article-card {
        padding: 28px;
    }
}
@media (max-width: 768px) {
    .main-nav,
    .header-cta-desktop {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .page-hero {
        padding: 60px 0 52px;
    }
    .page-hero::after {
        display: none;
    }
    .article-card {
        padding: 20px;
        border-radius: 16px;
    }
    .page-meta {
        gap: 12px;
        font-size: 0.82rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .section-title {
        font-size: 1.6rem;
    }
    .cta-section {
        padding: 64px 24px;
    }
    .cta-section p {
        font-size: 0.95rem;
    }
    .btn-large {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
}
@media (max-width: 520px) {
    .container-cus {
        padding: 0 16px;
    }
    .header-inner {
        height: 64px;
    }
    .logo-text {
        font-size: 1.05rem;
    }
    .logo-dot {
        width: 10px;
        height: 10px;
    }
    .page-title {
        font-size: 1.5rem;
    }
    .page-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}