/* roulang page: index */
:root{
    --bg-ink:#0a0f1e;
    --bg-ink-2:#0e1628;
    --bg-ink-3:#151f36;
    --bg-paper:#f7f6f2;
    --surface-card:#ffffff;
    --line-dark:rgba(255,255,255,0.10);
    --line-light:#e6e2d8;
    --gold-1:#d3b25f;
    --gold-2:#edc87a;
    --gold-ink:#58451f;
    --steel:#7f9cc1;
    --success:#9fceb8;
    --alert:#e0997d;
    --text-dark-title:#1c2433;
    --text-dark-body:#585e6c;
    --text-light-title:#f2f0e8;
    --text-light-body:#a4adc0;
  }
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:#f7f6f2;
    color:#1c2433;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  *{box-sizing:border-box;}
  a,img,button,input,textarea{transition:all .2s ease;}
  a{color:inherit;text-decoration:none;}
  p{color:#585e6c;}
  .container{width:100%;max-width:1160px;margin-left:auto;margin-right:auto;padding-left:1.25rem;padding-right:1.25rem;}
  @media(min-width:768px){
    .container{padding-left:2rem;padding-right:2rem;}
  }
  h1,h2,h3{line-height:1.35;}
  .btn-gold, .btn-outline-light, .btn-outline-dark{
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:999px;font-weight:600;font-size:.95rem;
    line-height:1;padding:0.9rem 1.7rem;
    min-height:44px;cursor:pointer;
    border:1px solid transparent;
  }
  .btn-gold{background:#d3b25f;color:#241c10;}
  .btn-gold:hover{background:#edc87a;transform:translateY(-1px);box-shadow:0 12px 30px rgba(211,178,95,.25);}
  .btn-outline-light{border-color:rgba(255,255,255,.28);color:#f2f0e8;background:transparent;}
  .btn-outline-light:hover{border-color:#d3b25f;color:#edc87a;transform:translateY(-1px);}
  .btn-outline-dark{border-color:#1c2433;color:#1c2433;background:transparent;}
  .btn-outline-dark:hover{border-color:#d3b25f;color:#9a7626;transform:translateY(-1px);}
  .btn-gold:focus-visible,.btn-outline-light:focus-visible,.btn-outline-dark:focus-visible{
    outline:3px solid rgba(211,178,95,.65);outline-offset:3px;
  }
  .site-nav a{color:#c6ccd9;font-weight:500;position:relative;white-space:nowrap;}
  .site-nav a:hover{color:#edc87a;}
  .site-nav a.active{color:#f2f0e8;}
  .site-nav a.active::after{content:"";position:absolute;left:50%;bottom:-10px;width:22px;height:2px;border-radius:2px;background:#d3b25f;transform:translateX(-50%);}
  .mobile-nav a.active{color:#d3b25f;}
  .service-card{border:1px solid #e6e2d8;background:#fff;border-radius:14px;box-shadow:0 10px 30px rgba(15,23,42,.04);}
  .service-card:hover{border-color:#d3b25f;transform:translateY(-4px);box-shadow:0 16px 40px rgba(15,23,42,.09);}
  .service-card:hover .service-icon{transform:translateY(-2px);color:#9a7626;}
  .service-icon{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:#faf8f3;border:1px solid #e6e2d8;color:#58451f;}
  .service-num{font-size:.8rem;letter-spacing:.04em;color:#9a9fae;font-weight:600;}
  .cms-card{background:#fff;border:1px solid #e6e2d8;border-radius:14px;box-shadow:0 10px 30px rgba(15,23,42,.04);}
  .cms-card:hover{border-color:#d3b25f;box-shadow:0 16px 40px rgba(15,23,42,.09);transform:translateY(-2px);}
  .category-tag{display:inline-flex;align-items:center;border-radius:999px;padding:.3rem .8rem;font-size:.75rem;background:#faf8f3;border:1px solid #e6e2d8;color:#58451f;font-weight:600;white-space:nowrap;}
  .category-tag:hover{border-color:#d3b25f;color:#9a7626;}
  .news-empty{border:1px dashed #d8d2c4;background:#fff;border-radius:14px;}
  .faq-item{border-bottom:1px solid #e6e2d8;}
  .faq-toggle{cursor:pointer;display:flex;align-items:center;justify-content:space-between;width:100%;padding:1.2rem 0;font-size:1rem;font-weight:600;color:#1c2433;text-align:left;background:transparent;border:none;}
  .faq-toggle:hover{color:#9a7626;}
  .faq-icon{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:#faf8f3;border:1px solid #e6e2d8;font-size:1rem;line-height:1;color:#58451f;transition:transform .3s ease;}
  .faq-item.open .faq-icon{transform:rotate(45deg);background:#d3b25f;border-color:#d3b25f;color:#241c10;}
  .faq-answer{max-height:0;overflow:hidden;opacity:0;transition:max-height .4s ease,opacity .4s ease,padding .3s ease;}
  .faq-item.open .faq-answer{max-height:320px;opacity:1;padding-bottom:1.25rem;}
  .faq-answer p{font-size:.95rem;color:#585e6c;line-height:1.8;margin:0;}
  .footer-links li a{font-size:.9rem;color:#a4adc0;}
  .footer-links li a:hover{color:#edc87a;}
  .form-input{background:#151f36;border:1px solid rgba(255,255,255,.08);border-radius:10px;color:#f2f0e8;padding:.85rem 1rem;width:100%;outline:none;font-size:.95rem;}
  .form-input::placeholder{color:#8791a5;}
  .form-input:focus{border-color:#d3b25f;box-shadow:0 0 0 3px rgba(211,178,95,.2);}
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
  .reveal.visible{opacity:1;transform:none;}
  .step-line::after{content:"";position:absolute;top:26px;left:calc(50% + 34px);right:calc(-50% + 34px);height:1px;background:rgba(255,255,255,.14);}
  .step-card{position:relative;}
  .step-card:last-child .step-line::after{display:none;}
  @media(max-width:1023px){
    .step-line::after{display:none;}
  }
  @media(max-width:767px){
    .site-nav{display:none;}
    .nav-cta-mobile{display:flex;}
  }
  @media(min-width:768px){
    .nav-cta-mobile{display:none;}
  }

/* roulang page: category1 */
:root {
    --bg-ink: #0a0f1e;
    --bg-ink-2: #0e1628;
    --bg-ink-3: #151f36;
    --bg-paper: #f7f6f2;
    --surface-card: #ffffff;
    --line-dark: rgba(255,255,255,0.10);
    --line-light: #e6e2d8;
    --gold-1: #d3b25f;
    --gold-2: #edc87a;
    --gold-ink: #58451f;
    --steel: #7f9cc1;
    --success: #9fceb8;
    --alert: #e0997d;
    --text-dark-title: #1c2433;
    --text-dark-body: #585e6c;
    --text-light-title: #f2f0e8;
    --text-light-body: #a4adc0;
    --radius-card: 14px;
    --radius-btn: 10px;
    --radius-pill: 999px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    background: var(--bg-paper);
    color: var(--text-dark-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  body.nav-open { overflow: hidden; }
  .container { max-width: 1160px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }
  @media (min-width: 768px) {
    .container { padding-left: 32px; padding-right: 32px; }
  }
  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { cursor: pointer; font-family: inherit; }
  input, select, textarea { font-family: inherit; }

  ::selection { background: rgba(211,178,95,0.25); }
  
  /* 滚动条 */
  ::-webkit-scrollbar { width: 8px; }
  ::-webkit-scrollbar-track { background: #ecece6; }
  ::-webkit-scrollbar-thumb { background: rgba(15,23,42,0.2); border-radius: 8px; }

  /* Header */
  .site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(10, 15, 30, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    transition: background 0.3s ease, border-color 0.3s ease;
  }
  .site-header.scrolled {
    background: rgba(10, 15, 30, 0.96);
    border-bottom-color: rgba(255,255,255,0.10);
  }
  .site-header .header-inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }
  .logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .logo-mark {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(211, 178, 95, 0.14);
    border: 1px solid rgba(211, 178, 95, 0.45);
    display: flex; align-items: center; justify-content: center;
    color: var(--gold-1);
    flex-shrink: 0;
  }
  .logo-text {
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }
  .site-nav { display: flex; align-items: center; gap: 26px; }
  .site-nav a {
    color: #a4adc0;
    font-size: 14px;
    font-weight: 500;
    position: relative;
    padding: 8px 2px;
    transition: color 0.2s;
    white-space: nowrap;
  }
  .site-nav a:hover { color: #f2f0e8; }
  .site-nav a.active {
    color: #f2f0e8;
  }
  .site-nav a.active::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--gold-1);
    border-radius: 2px;
  }
  .header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    transition: all 0.25s ease;
    text-decoration: none;
    border: 1px solid transparent;
    font-size: 14px;
  }
  .btn-gold {
    background: var(--gold-1);
    color: #241c10;
    height: 42px;
    padding: 0 24px;
    border-radius: var(--radius-btn);
    font-weight: 600;
  }
  .btn-gold:hover {
    background: var(--gold-2);
    color: #1a1308;
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(211,178,95,0.2);
  }
  .btn-outline {
    background: transparent;
    color: #d3b25f;
    border: 1px solid rgba(211,178,95,0.6);
    height: 42px;
    padding: 0 22px;
    border-radius: var(--radius-btn);
    font-weight: 500;
  }
  .btn-outline:hover {
    border-color: var(--gold-2);
    color: var(--gold-2);
    background: rgba(211,178,95,0.05);
  }
  .btn-outline-light {
    background: transparent;
    color: #d3b25f;
    border: 1px solid rgba(211,178,95,0.55);
  }
  .btn-outline-light:hover {
    border-color: var(--gold-2);
    color: var(--gold-2);
  }
  .btn-white-outline {
    background: transparent;
    color: #a4adc0;
    border: 1px solid rgba(255,255,255,0.2);
    height: 40px;
    padding: 0 20px;
    border-radius: var(--radius-btn);
  }
  .btn-white-outline:hover {
    border-color: rgba(211,178,95,0.6);
    color: var(--gold-1);
  }
  /* 移动端汉堡 */
  .burger {
    width: 44px;
    height: 44px;
    display: none;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(255,255,255,0.04);
    border-radius: 10px;
    color: #d3b25f;
  }
  /* 移动端导航 */
  .mobile-menu {
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: rgba(10,15,30,0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    z-index: 99;
    padding: 28px 28px 40px;
    display: flex;
    flex-direction: column;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
    overflow-y: auto;
  }
  .mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .mobile-menu a {
    color: #a4adc0;
    font-size: 20px;
    font-weight: 500;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .mobile-menu a.active { color: #f2f0e8; }
  .mobile-menu a.active::before { content: '◆ '; color: var(--gold-1); font-size: 14px; margin-right: 4px; }
  .mobile-menu .btn-gold { margin-top: 28px; width: 100%; height: 50px; font-size: 15px; border-radius: 12px; }

  /* 星尘背景 */
  .dust-bg {
    background-image: radial-gradient(rgba(255,255,255,0.14) 0.5px, transparent 1px);
    background-size: 26px 26px;
  }
  .dust-bg-gold {
    background-image: radial-gradient(rgba(211,178,95,0.1) 0.5px, transparent 1px);
    background-size: 28px 28px;
  }

  .page-hero {
    background: var(--bg-ink);
    color: var(--text-light-body);
    padding: 138px 0 0;
    position: relative;
    overflow: hidden;
  }
  .page-hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -180px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(211,178,95,0.08) 0%, rgba(211,178,95,0.04) 24%, transparent 70%);
    pointer-events: none;
  }
  .page-hero .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #7f8ba3;
    margin-bottom: 28px;
  }
  .page-hero .breadcrumb a { color: #a4adc0; transition: color 0.2s; }
  .page-hero .breadcrumb a:hover { color: var(--gold-1); }
  .page-hero .breadcrumb span { color: rgba(255,255,255,0.35); }
  .page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: #f2f0e8;
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
  }
  .page-hero h1 .gold-text { color: var(--gold-1); }
  .hero-sub {
    font-size: 17px;
    line-height: 1.8;
    color: #98a2ba;
    max-width: 680px;
    margin-bottom: 0;
  }

  .section { padding: 88px 0; }
  .section-sm { padding: 64px 0; }
  .section-tag {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--gold-ink);
    background: rgba(211,178,95,0.14);
    border: 1px solid rgba(211,178,95,0.25);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
  }
  .section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.3;
    color: #1c2433;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
  }
  .section-lead {
    font-size: 16px;
    line-height: 1.8;
    color: #585e6c;
    max-width: 780px;
  }

  .page-main {
    background: var(--bg-paper);
    color: var(--text-dark-body);
  }

  .dark-section {
    background: var(--bg-ink);
    color: var(--text-light-body);
  }
  .dark-section .section-title { color: #f2f0e8; }
  .dark-section .section-lead { color: #a4adc0; }

  /* 卡片 */
  .card {
    background: #ffffff;
    border: 1px solid var(--line-light);
    border-radius: var(--radius-card);
    padding: 28px;
    transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
  }
  .card:hover {
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.09);
    border-color: rgba(211,178,95,0.45);
    transform: translateY(-2px);
  }
  .dark-card {
    background: var(--bg-ink-2);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-card);
    padding: 30px;
    transition: all .3s ease;
  }
  .dark-card:hover {
    border-color: rgba(211,178,95,0.35);
  }
  .gold-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(211,178,95,0.08);
    border: 1px solid rgba(211,178,95,0.22);
    color: var(--gold-2);
    font-size: 12px;
    border-radius: 999px;
    padding: 4px 10px;
    font-weight: 500;
  }
  .blue-dot {
    width: 6px; height: 6px;
    border-radius: 999px;
    background: var(--success);
    display: inline-block;
    margin-right: 7px;
    box-shadow: 0 0 0 3px rgba(159,206,184,0.15);
  }

  /* 列表行 */
  .list-row {
    background: #fff;
    border: 1px solid var(--line-light);
    border-radius: 14px;
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all .25s ease;
  }
  .list-row:hover {
    border-color: rgba(211,178,95,0.5);
    box-shadow: 0 12px 30px rgba(15,23,42,0.06);
  }
  .list-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    background: #f8f5ee;
    border: 1px solid #eddbad;
    color: var(--gold-ink);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  
  /* 步骤 */
  .step-number {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: var(--bg-ink);
    border: 1px solid rgba(211,178,95,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-1);
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
  }

  /* FAQ */
  .faq-item {
    border-bottom: 1px solid var(--line-light);
  }
  .faq-item:last-child { border-bottom: none; }
  .faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: 20px 36px 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: #1c2433;
    transition: color .2s;
    line-height: 1.5;
  }
  .faq-question:hover { color: #58451f; }
  .faq-icon {
    width: 28px; height: 28px;
    border-radius: 8px;
    border: 1px solid rgba(211,178,95,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-1);
    flex-shrink: 0;
    transition: transform .3s ease, background .3s ease, color .3s ease;
    font-size: 18px;
    font-weight: 400;
    line-height: 1;
  }
  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: var(--gold-1);
    color: #241c10;
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    padding: 0;
    transition: max-height .3s ease, opacity .5s ease, padding .3s ease;
    color: #585e6c;
    font-size: 15px;
    line-height: 1.8;
  }
  .faq-item.open .faq-answer {
    max-height: 300px;
    opacity: 1;
    padding: 0 40px 22px 0;
  }

  /* CTA区域 */
  .cta-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--gold-ink);
    font-weight: 600;
    font-size: 15px;
  }
  .cta-arrow svg { transition: transform .3s; }
  .cta-arrow:hover svg { transform: translateX(4px); }

  /* 入场动效 */
  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .backpic-area {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-blend-mode: overlay;
    position: relative;
  }
  .img-wrap { border-radius: 16px; overflow: hidden; box-shadow: 0 18px 40px rgba(15,23,42,0.08); }
  
  /* footer */
  .footer-links a { color: #a4adc0; font-size: 14px; transition: color .2s, padding-left .25s; }
  .footer-links a:hover { color: var(--gold-2); padding-left: 4px; }

  @media (max-width: 1023px) {
    .site-nav { display: none; }
    .burger { display: flex; }
    .header-actions .desktop-cta { display: none; }
    .section { padding: 64px 0; }
    .page-hero { padding-top: 118px; }
  }

  @media (max-width: 767px) {
    .section { padding: 52px 0; }
    .header-inner { height: 64px; }
    .mobile-menu { top: 64px; }
    .mobile-menu a { font-size: 18px; padding: 14px 0; }
    .page-hero { padding-top: 104px; }
    .page-hero h1 { font-size: 1.65rem; }
    .hero-sub { font-size: 15px; }
    .card { padding: 22px; }
    .logo-text { font-size: 15px; }
    .btn-gold { height: 38px; padding: 0 18px; font-size: 13px; }
  }

/* roulang page: article */
:root {
      --bg-ink: #0a0f1e;
      --bg-ink-2: #0e1628;
      --bg-ink-3: #151f36;
      --bg-paper: #f7f6f2;
      --surface-card: #ffffff;
      --line-dark: rgba(255, 255, 255, 0.10);
      --line-light: #e6e2d8;
      --gold-1: #d3b25f;
      --gold-2: #edc87a;
      --gold-ink: #58451f;
      --steel: #7f9cc1;
      --success: #9fceb8;
      --alert: #e0997d;
      --text-dark-title: #1c2433;
      --text-dark-body: #585e6c;
      --text-light-title: #f2f0e8;
      --text-light-body: #a4adc0;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
      background: #f7f6f2;
      color: #585e6c;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4, p, ul, ol, figure, blockquote {
      margin: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

    button, input, select, textarea {
      font-family: inherit;
    }

    .container {
      width: 100%;
      max-width: 1160px;
      margin: 0 auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }

    @media (min-width: 768px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }

    .site-header {
      background: rgba(10, 15, 30, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      position: sticky;
      top: 0;
      z-index: 50;
    }

    .site-nav a {
      position: relative;
      font-size: 0.9rem;
      color: #a4adc0;
      padding: 6px 2px;
      transition: color 0.2s;
      letter-spacing: 0.01em;
    }

    .site-nav a:hover {
      color: #ffffff;
    }

    .site-nav a.active {
      color: #ffffff;
      font-weight: 600;
    }

    .site-nav a.active::after {
      content: '';
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: -6px;
      width: 20px;
      height: 2px;
      background: #d3b25f;
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.7rem 1.4rem;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.95rem;
      border: 1px solid transparent;
      transition: all 0.2s ease;
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-gold {
      background: #d3b25f;
      color: #241c10;
      border-color: #d3b25f;
    }

    .btn-gold:hover {
      background: #edc87a;
      border-color: #edc87a;
      transform: translateY(-1px);
      box-shadow: 0 10px 24px rgba(211, 178, 95, 0.22);
    }

    .btn-ghost-dark {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.25);
      color: #f2f0e8;
    }

    .btn-ghost-dark:hover {
      border-color: #d3b25f;
      color: #f7c870;
      transform: translateY(-1px);
    }

    .btn-primary-light {
      background: #d3b25f;
      color: #241c10;
      border-color: #d3b25f;
    }

    .btn-primary-light:hover {
      background: #edc87a;
      border-color: #edc87a;
      transform: translateY(-1px);
    }

    .btn-outline-light {
      background: transparent;
      border-color: #c9c2b4;
      color: #443a2e;
    }

    .btn-outline-light:hover {
      border-color: #d3b25f;
      color: #58451f;
      transform: translateY(-1px);
    }

    .hero-links a {
      color: #a4adc0;
    }

    .hero-links a:hover {
      color: #edc87a;
    }

    .footer-links a {
      color: #a4adc0;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: #edc87a;
    }

    .article-content {
      color: #3f4654;
      font-size: 1rem;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-content h1,
    .article-content h2,
    .article-content h3,
    .article-content h4 {
      color: #1c2433;
      margin: 2.2em 0 0.8em;
      line-height: 1.45;
    }

    .article-content h2 {
      font-size: 1.55rem;
    }

    .article-content h3 {
      font-size: 1.18rem;
    }

    .article-content h4 {
      font-size: 1.05rem;
    }

    .article-content p {
      margin-bottom: 1.3em;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 1.5em;
      padding-left: 1.5em;
    }

    .article-content li {
      margin-bottom: 0.4em;
    }

    .article-content img {
      border-radius: 14px;
      margin: 2em 0;
      border: 1px solid #e6e2d8;
    }

    .article-content blockquote {
      border-left: 3px solid #d3b25f;
      background: #faf9f6;
      padding: 1rem 1.5rem;
      margin: 1.8em 0;
      color: #7a7569;
      border-radius: 0 12px 12px 0;
    }

    .article-content a {
      color: #5b4920;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .article-content a:hover {
      color: #d3a93f;
    }

    .article-content pre {
      background: #0e1628;
      color: #e8e3d6;
      padding: 1.2rem;
      border-radius: 12px;
      overflow: auto;
      margin: 1.8em 0;
    }

    .article-content code {
      background: #eeece5;
      border-radius: 6px;
      padding: 3px 7px;
      font-size: 0.9em;
      color: #483d2a;
    }

    .article-content pre code {
      background: transparent;
      padding: 0;
      color: inherit;
    }

    .article-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 2em 0;
      font-size: 0.95rem;
    }

    .article-content table th,
    .article-content table td {
      border: 1px solid #e6e2d8;
      padding: 10px 14px;
      text-align: left;
    }

    .article-content table th {
      background: #f3f0ea;
      color: #1c2433;
      font-weight: 600;
    }

    .article-content hr {
      border: 0;
      border-top: 1px solid #e6e2d8;
      margin: 2.4em 0;
    }

    .meta-line {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 0.8rem 1.5rem;
    }

    .meta-line .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      font-size: 0.85rem;
      color: #7c8494;
    }

    .article-panel {
      background: #ffffff;
      border: 1px solid #e6e2d8;
      border-radius: 18px;
      padding: 1.6rem 1.4rem;
      box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
    }

    @media (min-width: 768px) {
      .article-panel {
        padding: 2.6rem 2.6rem;
      }
    }

    .topic-card {
      border: 1px solid #e6e2d8;
      border-radius: 18px;
      background: #ffffff;
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .topic-card:hover {
      border-color: #d3b25f;
      box-shadow: 0 16px 40px rgba(15, 23, 42, 0.09);
      transform: translateY(-4px);
    }

    .topic-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }

    .category-card-content {
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 1.4rem 1.5rem 1.6rem;
    }

    .badge-label {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      border-radius: 999px;
      background: rgba(211, 178, 95, 0.12);
      color: #58451f;
      padding: 0.25rem 0.8rem;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.02em;
    }

    .badge-dark-label {
      display: inline-flex;
      align-items: flex-start;
      gap: 0.5rem;
      border-radius: 999px;
      background: rgba(211, 178, 95, 0.12);
      border: 1px solid rgba(211, 178, 95, 0.3);
      color: #d3b25f;
      padding: 0.25rem 0.8rem;
      font-size: 0.78rem;
      font-weight: 600;
    }

    .cta-card {
      background: url("/assets/images/backpic/back-1.png") center / cover no-repeat;
      border-radius: 20px;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .cta-card::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(10, 15, 30, 0.97) 45%, rgba(10, 15, 30, 0.82));
      z-index: 1;
    }

    .cta-card > * {
      position: relative;
      z-index: 2;
    }

    .mobile-menu-links a {
      display: block;
      color: #c8cfdd;
      padding: 0.75rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.07);
      font-size: 0.95rem;
    }

    .mobile-menu-links a:hover {
      color: #ffffff;
    }

    .mobile-menu-cta .btn {
      width: 100%;
    }

    .article-empty-card {
      background: #ffffff;
      border: 1px dashed #d7d2c5;
      border-radius: 16px;
    }

    .related-list-card {
      transition: all 0.2s;
    }

    .related-list-card:hover {
      border-color: #d3b25f !important;
    }

/* roulang page: category2 */
:root {
            --bg-ink: #0a0f1e;
            --bg-ink-2: #0e1628;
            --bg-ink-3: #151f36;
            --bg-paper: #f7f6f2;
            --surface-card: #ffffff;
            --line-dark: rgba(255, 255, 255, 0.1);
            --line-light: #e6e2d8;
            --gold-1: #d3b25f;
            --gold-2: #edc87a;
            --gold-ink: #58451f;
            --steel: #7f9cc1;
            --success: #9fceb8;
            --alert: #e0997d;
            --text-dark-title: #1c2433;
            --text-dark-body: #585e6c;
            --text-light-title: #f2f0e8;
            --text-light-body: #a4adc0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background: var(--bg-paper);
            color: var(--text-dark-title);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #d3b25f;
            outline-offset: 4px;
        }
        .container {
            width: 100%;
            max-width: 1160px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .section-padding {
            padding-top: 68px;
            padding-bottom: 68px;
        }
        @media (min-width: 768px) {
            .section-padding {
                padding-top: 104px;
                padding-bottom: 104px;
            }
        }
        .site-nav a {
            position: relative;
            color: #a4adc0;
            font-weight: 500;
            padding: 6px 2px;
        }
        .site-nav a:hover {
            color: #f2f0e8;
        }
        .site-nav a.active {
            color: #f2f0e8;
        }
        .site-nav a.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 999px;
            background: #d3b25f;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.45rem;
            height: 44px;
            padding: 0 1.6rem;
            border-radius: 999px;
            background: #d3b25f;
            color: #241c10;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }
        .btn-primary:hover {
            background: #edc87a;
            color: #241c10;
            transform: translateY(-1px);
            box-shadow: 0 12px 26px rgba(237, 200, 122, 0.14);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.45rem;
            height: 44px;
            padding: 0 1.6rem;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #f2f0e8;
            font-weight: 600;
            font-size: 0.95rem;
            background: transparent;
            transition: all 0.25s ease;
        }
        .btn-secondary:hover {
            border-color: #d3b25f;
            color: #edc87a;
            transform: translateY(-1px);
            background: rgba(211, 178, 95, 0.06);
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(211, 178, 95, 0.12);
            color: #58451f;
            font-size: 0.85rem;
            font-weight: 500;
        }
        .section-eyebrow.dark {
            background: rgba(211, 178, 95, 0.1);
            color: #d3b25f;
        }
        .section-title {
            font-size: clamp(1.6rem, 2.8vw, 2.1rem);
            font-weight: 700;
            color: #1c2433;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .section-title-light {
            font-size: clamp(1.6rem, 2.8vw, 2.1rem);
            font-weight: 700;
            color: #f2f0e8;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 1rem;
            color: #585e6c;
            line-height: 1.9;
        }
        .section-desc-light {
            font-size: 1rem;
            color: #a4adc0;
            line-height: 1.9;
        }
        .service-card {
            height: 100%;
            background: #ffffff;
            border: 1px solid #e6e2d8;
            border-radius: 14px;
            padding: 30px 26px;
            box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }
        .service-card:hover {
            border-color: rgba(211, 178, 95, 0.55);
            box-shadow: 0 16px 40px rgba(15, 23, 42, 0.09);
            transform: translateY(-4px);
        }
        .service-card .card-num {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1;
            color: rgba(211, 178, 95, 0.45);
            letter-spacing: -0.02em;
            transition: color 0.3s ease;
        }
        .service-card:hover .card-num {
            color: #d3b25f;
        }
        .service-card .icon-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: #faf8f3;
            border: 1px solid #e6e2d8;
            color: #58451f;
            transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
        }
        .service-card:hover .icon-wrap {
            border-color: #d3b25f;
            background: rgba(211, 178, 95, 0.08);
            transform: translateY(-2px);
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            color: #58451f;
            border-bottom: 1px solid rgba(88, 69, 31, 0.3);
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        .text-link:hover {
            color: #b18b32;
            border-color: #b18b32;
        }
        .scenario-card {
            display: flex;
            gap: 16px;
            background: #ffffff;
            border: 1px solid #e6e2d8;
            border-radius: 14px;
            padding: 18px 20px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .scenario-card:hover {
            border-color: rgba(211, 178, 95, 0.45);
            box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06);
        }
        .step-wrap {
            position: relative;
            padding-left: 0;
            list-style: none;
            margin: 0;
        }
        .step-wrap li {
            position: relative;
            padding: 0 0 30px 70px;
        }
        .step-wrap li:last-child {
            padding-bottom: 0;
        }
        .step-wrap li::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 48px;
            bottom: 0;
            width: 1px;
            background: #e6e2d8;
        }
        .step-wrap li:last-child::before {
            display: none;
        }
        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            border: 1px solid rgba(211, 178, 95, 0.6);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #58451f;
            box-shadow: 0 8px 20px rgba(211, 178, 95, 0.08);
        }
        .login-entrance-card {
            background: #0e1628;
            border: 1px solid rgba(211, 178, 95, 0.45);
            border-radius: 18px;
            overflow: hidden;
            position: relative;
        }
        .login-entrance-card::before {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(211, 178, 95, 0.18), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .dark-mechanism-card {
            background: rgba(14, 22, 40, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 20px 24px;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }
        .dark-mechanism-card:hover {
            border-color: rgba(211, 178, 95, 0.45);
            transform: translateX(4px);
        }
        .faq-wrap {
            max-width: 860px;
        }
        .faq-item {
            border-bottom: 1px solid #e6e2d8;
        }
        .faq-item:first-of-type {
            border-top: 1px solid #e6e2d8;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            text-align: left;
            background: transparent;
            border: 0;
            padding: 20px 2px;
            color: #1c2433;
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.6;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: #58451f;
        }
        .faq-icon {
            flex: 0 0 auto;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #e6e2d8;
            border-radius: 8px;
            color: #58451f;
            background: #fff;
            transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
        }
        .faq-question svg {
            width: 14px;
            height: 14px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: #d3b25f;
            background: #faf6ec;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            opacity: 0;
            transition: max-height 0.35s ease, opacity 0.4s ease;
        }
        .faq-item.open .faq-answer {
            opacity: 1;
        }
        .faq-answer-inner {
            padding: 0 0 22px;
            color: #585e6c;
            font-size: 0.95rem;
            line-height: 1.9;
        }
        .form-label {
            display: block;
            font-size: 0.85rem;
            color: #cbd2de;
            margin-bottom: 6px;
            font-weight: 500;
        }
        .form-control {
            width: 100%;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: #151f36;
            border-radius: 10px;
            color: #f2f0e8;
            font-family: inherit;
            font-size: 0.95rem;
            padding: 12px 14px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            line-height: 1.6;
        }
        .form-control:focus {
            outline: none;
            border-color: #d3b25f;
            box-shadow: 0 0 0 3px rgba(211, 178, 95, 0.14);
        }
        .form-control::placeholder {
            color: #7f8aa0;
        }
        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }
        .trust-point {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #a4adc0;
            font-size: 0.88rem;
        }
        .footer-links a {
            color: #a4adc0;
            transition: color 0.25s ease;
        }
        .footer-links a:hover {
            color: #d3b25f;
        }
        .reveal {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .reveal.is-visible {
            opacity: 1;
            transform: translateY(0);
        }
        .site-header {
            background: rgba(10, 15, 30, 0.88);
            backdrop-filter: blur(14px);
        }
        .hero-bg {
            background-position: center;
            background-size: cover;
            opacity: 0.24;
        }
        .dark-texture {
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
        }
        @media (max-width: 1023px) {
            .site-nav {
                display: none;
            }
            .header-actions {
                display: none;
            }
        }
        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none;
            }
        }

/* roulang page: category3 */
:root {
      --bg-ink: #0a0f1e;
      --bg-ink-2: #0e1628;
      --bg-ink-3: #151f36;
      --bg-paper: #f7f6f2;
      --surface-card: #ffffff;
      --line-dark: rgba(255, 255, 255, 0.10);
      --line-light: #e6e2d8;
      --gold-1: #d3b25f;
      --gold-2: #edc87a;
      --gold-ink: #58451f;
      --steel: #7f9cc1;
      --success: #9fceb8;
      --alert: #e0997d;
      --text-dark-title: #1c2433;
      --text-dark-body: #585e6c;
      --text-light-title: #f2f0e8;
      --text-light-body: #a4adc0;
      --radius-card: 14px;
      --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.04);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg-paper);
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
      color: var(--text-dark-body);
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    .container-wide {
      max-width: 1160px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .site-header {
      background: rgba(10, 15, 30, 0.92);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      transition: background 0.25s ease;
    }

    .site-header .inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
      gap: 24px;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(211, 178, 95, 0.12);
      border: 1px solid rgba(211, 178, 95, 0.45);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--gold-1);
      flex-shrink: 0;
    }

    .brand-text {
      font-size: 1.05rem;
      font-weight: 700;
      letter-spacing: 0.02em;
      color: #f4f1e8;
      white-space: nowrap;
    }

    .site-nav a {
      color: #b7bfcf;
      font-weight: 500;
      padding: 8px 2px;
      border-radius: 6px;
      transition: color 0.2s ease;
      position: relative;
    }

    .site-nav a:hover {
      color: #f0ead8;
    }

    .site-nav a.active {
      color: #f5eddb;
    }

    .site-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -4px;
      height: 2px;
      border-radius: 99px;
      background: var(--gold-1);
    }

    .btn-gold {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--gold-1);
      color: #241c10;
      font-weight: 600;
      border-radius: 10px;
      padding: 10px 20px;
      font-size: 0.92rem;
      border: 1px solid transparent;
      transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
      box-shadow: 0 6px 14px rgba(211, 178, 95, 0.16);
    }

    .btn-gold:hover {
      background: var(--gold-2);
      transform: translateY(-1px);
      box-shadow: 0 10px 18px rgba(211, 178, 95, 0.22);
    }

    .btn-outline-light {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: #d6dce8;
      border: 1px solid rgba(255, 255, 255, 0.22);
      border-radius: 10px;
      padding: 10px 20px;
      font-size: 0.92rem;
      font-weight: 500;
      transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
    }

    .btn-outline-light:hover {
      border-color: var(--gold-1);
      color: #f0d9a0;
    }

    .btn-outline-dark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--text-dark-title);
      border: 1px solid #d8d2c6;
      border-radius: 10px;
      padding: 10px 20px;
      font-size: 0.92rem;
      font-weight: 500;
      transition: border-color 0.2s ease, color 0.2s ease;
    }

    .btn-outline-dark:hover {
      border-color: var(--gold-1);
      color: var(--gold-ink);
    }

    .gold-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
      color: var(--gold-ink);
      transition: gap 0.2s ease, color 0.2s ease;
    }

    .gold-link:hover {
      gap: 10px;
      color: #2b200d;
    }

    .card-surface {
      background: var(--surface-card);
      border: 1px solid var(--line-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-soft);
      transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
    }

    .card-surface:hover {
      box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
      border-color: rgba(211, 178, 95, 0.45);
    }

    .soft-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(211, 178, 95, 0.12);
      color: #58451f;
      font-size: 0.82rem;
      font-weight: 600;
      border-radius: 999px;
      padding: 5px 12px;
      border: 1px solid rgba(211, 178, 95, 0.28);
    }

    .process-step {
      position: relative;
    }

    .process-step .badge {
      font-size: 1.6rem;
      font-weight: 700;
      color: rgba(211, 178, 95, 0.6);
      line-height: 1;
    }

    .faq-item {
      border-bottom: 1px solid var(--line-light);
    }

    .faq-q {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      padding: 22px 0;
      color: var(--text-dark-title);
      font-weight: 600;
      font-size: 1.02rem;
      background: transparent;
      border: 0;
      cursor: pointer;
      transition: color 0.2s ease;
    }

    .faq-q:hover {
      color: var(--gold-ink);
    }

    .faq-icon {
      color: var(--gold-1);
      font-size: 1.5rem;
      font-weight: 300;
      width: 32px;
      height: 32px;
      border: 1px solid rgba(211, 178, 95, 0.4);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      transition: transform 0.3s ease, background 0.3s ease;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: rgba(211, 178, 95, 0.12);
    }

    .faq-a {
      color: var(--text-dark-body);
      line-height: 1.9;
      max-height: 0;
      overflow: hidden;
      opacity: 0;
      transition: max-height 0.35s ease, opacity 0.3s ease, padding 0.3s ease;
    }

    .faq-item.open .faq-a {
      max-height: 320px;
      opacity: 1;
      padding-bottom: 22px;
    }

    .form-control {
      width: 100%;
      background: var(--bg-ink-3);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 10px;
      color: #e8e4da;
      padding: 12px 14px;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .form-control:focus {
      border-color: rgba(211, 178, 95, 0.7);
      box-shadow: 0 0 0 3px rgba(211, 178, 95, 0.12);
    }

    .form-label {
      font-size: 0.85rem;
      color: #c3cbd9;
      margin-bottom: 6px;
      display: inline-block;
    }

    .check-line {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: #d9dfeb;
    }

    .check-line i {
      color: var(--gold-1);
    }

    .footer-links a {
      color: #a4adc0;
      transition: color 0.2s ease;
    }

    .footer-links a:hover {
      color: #ead69b;
    }

    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity 0.5s ease, transform 0.5s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    .hero-bg {
      background-image: linear-gradient(rgba(10, 15, 30, 0.9), rgba(10, 15, 30, 0.82)), url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
    }

    .scene-cover {
      object-fit: cover;
      width: 100%;
      height: 100%;
      min-height: 260px;
    }

    #mobileMenuPanel {
      display: none;
    }

    #mobileMenuPanel.open {
      display: block;
    }

    @media (max-width: 1024px) {
      .desktop-nav {
        display: none;
      }
      .mobile-menu-btn {
        display: inline-flex;
      }
      .site-header .desktop-cta {
        display: none;
      }
    }

    @media (min-width: 1025px) {
      .mobile-menu-btn {
        display: none;
      }
    }

    @media (max-width: 640px) {
      .brand-text {
        font-size: 0.92rem;
      }
      .container-wide {
        padding-left: 18px;
        padding-right: 18px;
      }
      h1 {
        font-size: 1.9rem;
      }
    }

/* roulang page: category4 */
:root {
    --bg-ink: #0a0f1e;
    --bg-ink-2: #0e1628;
    --bg-ink-3: #151f36;
    --bg-paper: #f7f6f2;
    --surface-card: #ffffff;
    --line-dark: rgba(255, 255, 255, 0.10);
    --line-light: #e6e2d8;
    --gold-1: #d3b25f;
    --gold-2: #edc87a;
    --gold-ink: #58451f;
    --steel: #7f9cc1;
    --success: #9fceb8;
    --alert: #e0997d;
    --text-dark-title: #1c2433;
    --text-dark-body: #585e6c;
    --text-light-title: #f2f0e8;
    --text-light-body: #a4adc0;
    --radius-card: 14px;
    --radius-btn: 999px;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
  }

  body {
    margin: 0;
    background: var(--bg-paper);
    color: var(--text-dark-title);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font: inherit;
  }

  .container {
    width: 100%;
    max-width: 1160px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  @media (min-width: 640px) {
    .container {
      padding-left: 1.75rem;
      padding-right: 1.75rem;
    }
  }

  @media (min-width: 768px) {
    .container {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  .section {
    padding: 4rem 0;
  }

  @media (min-width: 768px) {
    .section {
      padding: 6rem 0;
    }
  }

  .section-dark {
    background: var(--bg-ink);
    color: var(--text-light-body);
  }

  .section-paper {
    background: var(--bg-paper);
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--gold-ink);
    padding: 0.35rem 0.9rem;
    border: 1px solid rgba(211, 178, 95, 0.35);
    background: rgba(211, 178, 95, 0.1);
    border-radius: 999px;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(10, 15, 30, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .site-header .inner {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    flex-shrink: 0;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    border: 1px solid rgba(211, 178, 95, 0.45);
    background: rgba(211, 178, 95, 0.14);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-1);
    flex-shrink: 0;
  }

  .brand-text {
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }

  .site-nav {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    font-size: 0.9rem;
  }

  .site-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0;
    color: rgba(218, 226, 239, 0.78);
    font-weight: 500;
    transition: color 0.2s ease;
    white-space: nowrap;
  }

  .site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--gold-1);
    transition: right 0.2s ease;
  }

  .site-nav a:hover {
    color: #ffffff;
  }

  .site-nav a:hover::after,
  .site-nav a.active::after {
    right: 0;
  }

  .site-nav a.active {
    color: #ffffff;
    font-weight: 600;
  }

  .header-actions {
    display: none;
    align-items: center;
    gap: 0.75rem;
  }

  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #ffffff;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
  }

  .mobile-toggle:hover {
    border-color: rgba(211, 178, 95, 0.55);
    background: rgba(211, 178, 95, 0.12);
  }

  .mobile-panel {
    display: none;
    border-top: 1px solid rgba(255, 255, 255, 0.09);
    background: rgba(10, 15, 30, 0.98);
  }

  .mobile-panel.open {
    display: block;
  }

  @media (min-width: 1024px) {
    .header-actions {
      display: flex;
    }

    .mobile-toggle {
      display: none;
    }

    .site-nav {
      display: flex;
    }
  }

  @media (max-width: 1023.98px) {
    .site-nav {
      display: none;
    }
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--radius-btn);
    padding: 0.72rem 1.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.4;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
  }

  .btn svg {
    transition: transform 0.2s ease;
  }

  .btn:hover svg {
    transform: translateX(2px);
  }

  .btn-gold {
    background: var(--gold-1);
    color: var(--gold-ink);
  }

  .btn-gold:hover {
    background: var(--gold-2);
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(211, 178, 95, 0.22);
  }

  .btn-outline-light {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.28);
    color: #ffffff;
  }

  .btn-outline-light:hover {
    border-color: var(--gold-1);
    color: var(--gold-1);
    background: rgba(211, 178, 95, 0.08);
  }

  .btn-dark {
    background: var(--text-dark-title);
    color: #ffffff;
    border-color: var(--text-dark-title);
  }

  .btn-dark:hover {
    background: var(--gold-ink);
    border-color: var(--gold-ink);
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(28, 36, 51, 0.15);
  }

  .btn-sm {
    padding: 0.58rem 1.05rem;
    font-size: 0.88rem;
  }

  .btn-lg {
    padding: 0.9rem 1.6rem;
    font-size: 1rem;
  }

  .footer-links a {
    color: #a4adc0;
    transition: color 0.2s ease;
  }

  .footer-links a:hover {
    color: #ffffff;
  }

  .page-hero {
    position: relative;
    background: var(--bg-ink);
    color: var(--text-light-title);
    padding: 4.75rem 0 4.2rem;
    overflow: hidden;
  }

  @media (min-width: 768px) {
    .page-hero {
      padding: 7.5rem 0;
    }
  }

  .page-hero .stars-layer {
    position: absolute;
    inset: 0;
    background-image:
      radial-gradient(rgba(255, 255, 255, 0.16) 0.7px, transparent 0.7px),
      radial-gradient(rgba(211, 178, 95, 0.12) 0.6px, transparent 0.6px);
    background-size: 220px 220px, 280px 280px;
    background-position: 0 0, 70px 120px;
    opacity: 0.45;
    pointer-events: none;
  }

  .page-hero .hero-bg-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.16;
    pointer-events: none;
  }

  .page-hero .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10, 15, 30, 0.96) 0%, rgba(10, 15, 30, 0.78) 72%, rgba(10, 15, 30, 0.56) 100%);
    pointer-events: none;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(164, 173, 192, 0.9);
    margin-bottom: 1.4rem;
  }

  .breadcrumb a:hover {
    color: var(--gold-1);
  }

  .page-hero h1 {
    font-size: clamp(2rem, 4.2vw, 3.1rem);
    line-height: 1.2;
    font-weight: 700;
    color: #ffffff;
    margin: 0.8rem 0 1.1rem 0;
    letter-spacing: 0.01em;
  }

  .page-hero .hero-lead {
    max-width: 660px;
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text-light-body);
    margin: 0;
  }

  .hero-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.55rem 1.2rem;
    margin-top: 1.6rem;
    font-size: 0.9rem;
    color: #c7ceda;
  }

  .hero-line .dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--success);
    box-shadow: 0 0 0 4px rgba(159, 206, 184, 0.12);
  }

  .metric-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: #a4adc0;
  }

  .info-card {
    position: relative;
    height: 100%;
    background: var(--surface-card);
    border: 1px solid var(--line-light);
    border-radius: var(--radius-card);
    padding: 1.8rem 1.6rem 1.6rem;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  }

  .info-card:hover {
    border-color: rgba(211, 178, 95, 0.55);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.09);
  }

  .info-card .card-num {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: rgba(211, 178, 95, 0.24);
    letter-spacing: 0.02em;
  }

  .info-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 13px;
    border: 1px solid rgba(127, 156, 193, 0.28);
    background: rgba(127, 156, 193, 0.09);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5f7694;
    transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  }

  .info-card:hover .card-icon {
    color: var(--gold-ink);
    border-color: rgba(211, 178, 95, 0.5);
    transform: translateY(-2px);
  }

  .info-card h3 {
    margin: 1.2rem 0 0.6rem;
    font-size: 1.06rem;
    font-weight: 600;
    color: var(--text-dark-title);
  }

  .info-card p {
    font-size: 0.92rem;
    line-height: 1.8;
    color: var(--text-dark-body);
    margin: 0 0 1rem;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-dark-title);
    font-size: 0.9rem;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
  }

  .card-link:hover {
    color: var(--gold-ink);
    border-color: rgba(211, 178, 95, 0.6);
  }

  .process-step {
    height: 100%;
    background: var(--bg-ink-2);
    border: 1px solid var(--line-dark);
    border-radius: var(--radius-card);
    padding: 1.8rem 1.6rem;
    transition: border-color 0.2s ease, transform 0.2s ease;
  }

  .process-step:hover {
    border-color: rgba(211, 178, 95, 0.4);
    transform: translateY(-3px);
  }

  .process-step .step-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(211, 178, 95, 0.12);
    border: 1px solid rgba(211, 178, 95, 0.35);
    color: var(--gold-1);
    font-weight: 700;
    font-size: 0.95rem;
  }

  .process-step h3 {
    color: #ffffff;
    font-size: 1.03rem;
    font-weight: 600;
    margin: 1.2rem 0 0.6rem;
  }

  .process-step p {
    color: var(--text-light-body);
    font-size: 0.93rem;
    line-height: 1.8;
    margin: 0;
  }

  .feature-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--line-light);
    color: var(--text-dark-body);
    font-size: 0.96rem;
    line-height: 1.8;
  }

  .feature-list li:last-child {
    border-bottom: 0;
  }

  .feature-list .check-icon {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: rgba(159, 206, 184, 0.16);
    color: #5f947d;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.22rem;
  }

  .img-frame {
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--line-light);
    background: #f0eee8;
  }

  .img-frame img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }

  .img-float {
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    background: rgba(10, 15, 30, 0.86);
    border: 1px solid rgba(211, 178, 95, 0.28);
    color: #f2f0e8;
    border-radius: 12px;
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
    backdrop-filter: blur(8px);
  }

  .faq-list {
    max-width: 760px;
    margin-left: auto;
  }

  .faq-item {
    border-bottom: 1px solid var(--line-light);
  }

  .faq-question {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    padding: 1.15rem 0.25rem;
    background: transparent;
    border: 0;
    cursor: pointer;
    text-align: left;
    color: var(--text-dark-title);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.6;
    transition: color 0.2s ease;
  }

  .faq-question:hover {
    color: var(--gold-ink);
  }

  .faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--line-light);
    color: var(--text-dark-body);
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(211, 178, 95, 0.14);
    border-color: rgba(211, 178, 95, 0.45);
    color: var(--gold-ink);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .faq-answer_inner {
    padding: 0.1rem 1.7rem 1.2rem 0.25rem;
    color: var(--text-dark-body);
    font-size: 0.95rem;
    line-height: 1.85;
  }

  .form-card {
    background: var(--bg-ink-2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 2rem;
  }

  @media (min-width: 768px) {
    .form-card {
      padding: 2.5rem;
    }
  }

  .form-label {
    display: block;
    font-size: 0.9rem;
    color: #cfd6e2;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }

  .field {
    width: 100%;
    background: var(--bg-ink-3);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 12px;
    padding: 0.82rem 1rem;
    color: var(--text-light-title);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .field::placeholder {
    color: #748096;
  }

  .field:focus {
    outline: none;
    border-color: var(--gold-1);
    box-shadow: 0 0 0 3px rgba(211, 178, 95, 0.14);
  }

  textarea.field {
    min-height: 120px;
    resize: vertical;
  }

  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    .reveal {
      opacity: 1;
      transform: none;
      transition: none;
    }

    .info-card,
    .process-step,
    .btn,
    .faq-icon,
    .card-icon {
      transition: none;
    }
  }

  a:focus-visible,
  button:focus-visible,
  .field:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(211, 178, 95, 0.35);
  }