/* Service articles — premium, compact, responsive; scoped to service templates.
   Pure CSS. Compatible with the central SEO, Local SEO and Footer modules. */
.article.rbk-article-shell {
  padding: 0;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  min-width: 0;
}
.rbk-guide, .rbk-guide * { box-sizing: border-box; }
.rbk-guide {
  --guide-navy: #10273d;
  --guide-navy-deep: #0b1b2d;
  --guide-ink: #19324a;
  --guide-muted: #61748a;
  --guide-border: #dce7f0;
  --guide-gold: #f1cf94;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--guide-ink);
  font-family: "Noto Sans Thai", Tahoma, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.83;
}
.rbk-guide a { text-decoration: none; }
.rbk-guide a:focus-visible, .rbk-guide summary:focus-visible { outline: 3px solid #408ee0; outline-offset: 3px; }
.rbk-guide p, .rbk-guide h2, .rbk-guide h3, .rbk-guide h4 { margin: 0; }
.rbk-guide__hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 70% 145% at 98% -15%, rgba(60,110,149,.33), transparent 70%),
              linear-gradient(125deg, var(--guide-navy-deep) 0%, var(--guide-navy) 58%, #184569 100%);
  padding: clamp(22px, 3.3vw, 34px);
  border-radius: 24px;
  border: 1px solid #2e4b62;
  color: #edf5ff;
  box-shadow: 0 20px 45px rgba(12,42,70,.15);
}
.rbk-guide__hero::before {
  content: ""; position: absolute; inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, transparent, #ba935e 22%, #f7dfad 50%, #ba935e 77%, transparent);
}
.rbk-guide__hero::after {
  content: ""; position: absolute; width: 270px; height: 270px;
  border-radius: 50%; border: 1px solid rgba(255,255,255,.05);
  box-shadow: 0 0 0 50px rgba(255,255,255,.018), 0 0 0 105px rgba(255,255,255,.008);
  right: -85px; top: -150px; pointer-events: none;
}
.rbk-guide__hero-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 7px 16px; margin-bottom: 10px; }
.rbk-guide__eyebrow { color: var(--guide-gold); font-weight: 850; font-size: 11px; letter-spacing: .14em; }
.rbk-guide__topic { color: #d8e8f7; font-size: 12px; font-weight: 700; }
.rbk-guide .rbk-guide__title { max-width: 950px; color: #fff; font-size: clamp(22px, 2.8vw, 31px); line-height: 1.44; letter-spacing: -.018em; font-weight: 850; margin: 0 0 12px; }
.rbk-guide .rbk-guide__lead { max-width: 940px; color: #d3e2f0; line-height: 1.87; font-size: 14px; margin: 0 0 17px; }
.rbk-guide__self-link { color: #d4a052; font-weight: 850; border-bottom: 1px solid currentColor; text-underline-offset: 3px; }
.rbk-guide__self-link:hover { color: #ffd89a; }
.rbk-guide__hero .rbk-guide__self-link { color: #ffe1af; }
.rbk-guide__hero .rbk-guide__self-link:hover { color: #fff; }
.rbk-guide__tags { display: flex; flex-wrap: wrap; gap: 7px; }
.rbk-guide__tags span { display: inline-flex; align-items: center; background: rgba(255,255,255,.075); border: 1px solid rgba(255,255,255,.17); border-radius: 8px; min-height: 30px; padding: 5px 11px; color: #e6f1ff; line-height: 1.3; font-size: 12px; font-weight: 750; }
.rbk-guide__spotlight {
  display: grid; grid-template-columns: 40px minmax(0,1fr); gap: 15px; align-items: flex-start;
  padding: 17px 19px; border: 1px solid #cfe0f0; border-radius: 17px;
  background: linear-gradient(120deg,#f0f7ff,#fff); color: #29445e;
}
.rbk-guide__spotlight-icon { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; font-weight: 850; font-size: 14px; color: #fff; background: #2778bb; }
.rbk-guide .rbk-guide__spotlight h3 { color: #163957; font-size: 17px; line-height: 1.4; margin: 0 0 5px; font-weight: 800; }
.rbk-guide__spotlight p { font-size: 13.5px; color: #536d85; }
.rbk-guide__section-head { margin: 7px 0 0; }
.rbk-guide__section-kicker { display: block; color: #276ca8; font-size: 10px; font-weight: 850; letter-spacing: .14em; line-height: 1.8; margin-bottom: 4px; }
.rbk-guide .rbk-guide__section-head h3 { color: #142e47; font-size: clamp(19px, 2.1vw, 23px); line-height: 1.4; font-weight: 850; }
.rbk-guide__section-head p { font-size: 13.5px; color: var(--guide-muted); margin-top: 4px; }
.rbk-guide__steps { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 13px; }
.rbk-guide__step { position: relative; min-width: 0; padding: 18px 19px; background: #fff; border: 1px solid var(--guide-border); border-radius: 17px; box-shadow: 0 9px 24px rgba(15,58,99,.055); }
.rbk-guide__step-no { display: inline-grid; place-items: center; width: 31px; height: 29px; border-radius: 8px; color: #145eaa; background: #eaf3ff; font-size: 12px; font-weight: 850; margin-bottom: 8px; }
.rbk-guide .rbk-guide__step h4 { color: #1a3d5c; font-size: 16px; font-weight: 850; line-height: 1.4; margin-bottom: 6px; }
.rbk-guide__step p { color: #50657a; font-size: 13px; line-height: 1.85; }
.rbk-guide__two-columns { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 13px; align-items: stretch; }
.rbk-guide__panel { min-width: 0; padding: 20px; border: 1px solid #d8e5ef; border-radius: 19px; background: #fff; box-shadow: 0 8px 25px rgba(17,63,106,.055); }
.rbk-guide__panel--light { background: linear-gradient(145deg,#f6fbff,#fff); }
.rbk-guide__panel-heading { display: flex; align-items: center; gap: 11px; margin-bottom: 10px; }
.rbk-guide__panel-marker { display: grid; place-items: center; background: #e8f2fe; color: #256cae; width: 30px; height: 30px; flex: 0 0 30px; border-radius: 10px; font-size: 15px; }
.rbk-guide .rbk-guide__panel h3 { font-size: 17px; line-height: 1.4; color: #17364f; font-weight: 850; }
.rbk-guide__panel p { margin: 0 0 10px; color: #5c7186; font-size: 13px; line-height: 1.8; }
.rbk-guide__bullet { padding: 0; margin: 0; list-style: none; display: grid; gap: 7px; }
.rbk-guide__bullet li { position: relative; padding: 0 0 0 19px; color: #314e69; font-size: 13px; line-height: 1.75; }
.rbk-guide__bullet li::before { content: ""; position: absolute; width: 6px; height: 6px; border-radius: 50%; background: #2c83c9; left: 2px; top: .83em; }
.rbk-guide__example { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 15px 19px; border: 1px dashed #b4cadf; border-radius: 14px; background: #f7faff; }
.rbk-guide__example > div { min-width: 0; }
.rbk-guide__mini-label { display: block; font-size: 12px; color: #276497; font-weight: 850; margin-bottom: 4px; }
.rbk-guide__example p { color: #29425b; font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
.rbk-guide__example-note { flex: 0 0 auto; background: #e4f0fd; color: #2665a2; border-radius: 9px; padding: 7px 10px; font-size: 11px; font-weight: 850; white-space: nowrap; }
.rbk-guide__safety { display: grid; grid-template-columns: 38px minmax(0,1fr); gap: 14px; padding: 16px 19px; border: 1px solid #e9dfd0; background: #fffcf7; border-radius: 16px; }
.rbk-guide__safety-icon { width: 34px; height: 34px; color: #835d30; background: #fff1d8; border-radius: 10px; display: grid; place-items: center; font-size: 19px; font-weight: 900; }
.rbk-guide .rbk-guide__safety h3 { font-size: 16px; margin: 0 0 4px; color: #594021; font-weight: 850; }
.rbk-guide__safety p { color: #755e40; font-size: 13px; line-height: 1.9; }
.rbk-guide__faq { display: grid; gap: 12px; }
.rbk-guide__faq-list { display: grid; gap: 8px; }
.rbk-guide__faq-item { border: 1px solid var(--guide-border); border-radius: 12px; background: #fff; overflow: hidden; }
.rbk-guide__faq-item[open] { border-color: #c5daec; box-shadow: 0 8px 22px rgba(23,78,127,.06); }
.rbk-guide__faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 15px; cursor: pointer; padding: 13px 17px; list-style: none; color: #1f435e; font-size: 13.5px; font-weight: 800; line-height: 1.6; }
.rbk-guide__faq-item summary::-webkit-details-marker { display: none; }
.rbk-guide__faq-item summary::marker { content: ""; }
.rbk-guide__faq-plus { flex: 0 0 26px; display: grid; place-items: center; border-radius: 8px; height: 26px; color: #2d6eaa; background: #ecf4fd; font-size: 19px; transition: transform .18s ease; }
.rbk-guide__faq-item[open] .rbk-guide__faq-plus { transform: rotate(45deg); }
.rbk-guide__faq-item > p { margin: 0; padding: 0 17px 14px; color: #60748b; font-size: 13px; line-height: 1.9; }
.rbk-guide__outro { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 18px; padding: 20px 23px; background: linear-gradient(110deg,#132a3f 0%,#1b4565 100%); border: 1px solid #315571; border-radius: 18px; color: #ecf7ff; }
.rbk-guide__outro .rbk-guide__section-kicker { color: #f1cc91; }
.rbk-guide .rbk-guide__outro h3 { color: white; font-size: 18px; font-weight: 850; line-height: 1.4; margin: 0 0 5px; }
.rbk-guide__outro p { color: #d7e7f3; font-size: 13px; line-height: 1.85; }
.rbk-guide__outro .rbk-guide__self-link { color: #ffe0a4; }
.rbk-guide__actions { display: flex; flex-direction: column; align-items: stretch; gap: 8px; min-width: 140px; }
.rbk-guide a.rbk-guide__btn { min-height: 42px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; padding: 10px 13px; font-size: 12.5px; font-weight: 850; line-height: 1.4; white-space: nowrap; text-decoration: none; }
.rbk-guide a.rbk-guide__btn--line { color: #0b4430; background: #b8ebc6; }
.rbk-guide a.rbk-guide__btn--call { color: #fff; background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.25); }
@media (max-width: 780px) {
  .rbk-guide { gap: 15px; }
  .rbk-guide__two-columns { grid-template-columns: 1fr; }
  .rbk-guide__outro { grid-template-columns: 1fr; }
  .rbk-guide__actions { flex-direction: row; flex-wrap: wrap; }
  .rbk-guide__example { align-items: flex-start; flex-direction: column; gap: 8px; }
}
@media (max-width: 580px) {
  .rbk-guide__hero { padding: 20px 17px; border-radius: 18px; }
  .rbk-guide .rbk-guide__title { font-size: 21px; line-height: 1.48; }
  .rbk-guide .rbk-guide__lead { font-size: 13px; }
  .rbk-guide__steps { grid-template-columns: 1fr; gap: 9px; }
  .rbk-guide__step { padding: 15px; }
  .rbk-guide__panel { padding: 16px; }
  .rbk-guide__spotlight { grid-template-columns: 31px 1fr; gap: 12px; padding: 14px; }
  .rbk-guide__spotlight-icon { width: 29px; height: 29px; font-size: 12px; }
  .rbk-guide__safety { grid-template-columns: 30px 1fr; padding: 14px; gap: 9px; }
  .rbk-guide__safety-icon { width: 28px; height: 28px; font-size: 16px; }
  .rbk-guide__outro { padding: 17px; }
  .rbk-guide__actions { flex-direction: column; }
  .rbk-guide__faq-item summary { padding: 12px 14px; }
}
@media (prefers-reduced-motion: reduce) { .rbk-guide__faq-plus { transition: none; } }