:root {
  --fr-blue: var(--proved-blue, #3568FF);
  --fr-blue-dark: var(--proved-blue-dark, #2349B8);
  --fr-bg: var(--proved-page-surface, #F5F7FA);
  --fr-text: var(--proved-text, #727B8B);
  --fr-muted: var(--proved-text-muted, #9AA1AD);
  --fr-line: var(--proved-line, #DCE2EA);
  --fr-white: #FFFFFF;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--fr-bg);
  color: var(--fr-blue-dark);
  font-family: "SUIT Variable", "SUIT", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  word-break: keep-all;
}

body ::selection {
  color: var(--fr-white);
  background: var(--fr-blue);
}

a { color: inherit; }

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(53, 104, 255, .28);
  outline-offset: 4px;
}

.fr-shell {
  width: min(calc(100% - (2 * var(--proved-page-gutter, 28px))), var(--proved-content-max, 1124px));
  margin: 0 auto;
  padding-bottom: 76px;
}

.fr-shell > .proved-global-header {
  margin-bottom: 64px;
}

.fr-main {
  width: min(100%, 980px);
  margin: 0 auto;
}

.fr-intro {
  width: min(100%, 760px);
  margin: 0 auto 46px;
  text-align: center;
}

.fr-intro h1 {
  margin: 0 0 26px;
  color: var(--fr-blue);
  font-size: clamp(42px, 5.4vw, 68px);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: -.045em;
}

.fr-intro p {
  max-width: 720px;
  margin-inline: auto !important;
  color: var(--fr-text);
  font-size: 17px;
  line-height: 1.8;
  text-align: center !important;
  text-wrap: balance;
}

.fr-intro__lead {
  margin-block: 0 !important;
}

.fr-intro__statement {
  max-width: 680px !important;
  margin-block: 22px 0 !important;
}

.fr-intro strong {
  color: var(--fr-blue);
  font-weight: 760;
}

.fr-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.fr-card {
  position: relative;
  min-height: 280px;
  padding: 30px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  background: var(--fr-blue);
  color: var(--fr-white);
  text-decoration: none;
  border: 0;
  border-radius: 0;
  transition: background-color .2s ease, transform .2s ease;
}

.fr-card-copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.fr-card-index {
  display: block;
  margin-bottom: 9px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .08em;
  opacity: .9;
}

.fr-card h2 {
  margin: 0;
  color: var(--fr-white);
  font-size: 28px;
  font-weight: 760;
  line-height: 1.18;
  letter-spacing: -.035em;
}

.fr-card p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, .9);
  font-size: 15px;
  line-height: 1.55;
}

.fr-card-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.fr-card-arrow {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .6);
  font-size: 21px;
  font-weight: 500;
  line-height: 1;
  transition: transform .2s ease, background-color .2s ease;
}

.fr-icon {
  width: 132px;
  height: 112px;
  flex: 0 0 auto;
  overflow: visible;
}

.fr-icon * {
  vector-effect: non-scaling-stroke;
  transform-box: fill-box;
}

.fr-stroke {
  fill: none;
  stroke: var(--fr-white);
  stroke-width: 2.35;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.fr-stroke--thin { stroke-width: 1.8; }

.fr-draw {
  stroke-dasharray: 260;
  stroke-dashoffset: 260;
  animation: fr-draw 1.05s cubic-bezier(.2, .75, .2, 1) forwards;
}

.fr-delay-1 { animation-delay: .12s; }
.fr-delay-2 { animation-delay: .24s; }
.fr-delay-3 { animation-delay: .36s; }

.fr-scan {
  transform-origin: center;
  animation: fr-scan 1.3s cubic-bezier(.2, .72, .2, 1) .22s both;
}

.fr-pop {
  transform-origin: center bottom;
  animation: fr-pop .72s cubic-bezier(.2, .9, .2, 1.14) .12s both;
}

.fr-bar {
  transform-origin: center bottom;
  animation: fr-bar .8s cubic-bezier(.2, .82, .2, 1) both;
}

.fr-bar:nth-of-type(2) { animation-delay: .12s; }
.fr-bar:nth-of-type(3) { animation-delay: .24s; }

.fr-shield {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  animation: fr-draw 1.1s ease forwards;
}

.fr-check {
  stroke-dasharray: 80;
  stroke-dashoffset: 80;
  animation: fr-draw .65s ease .62s forwards;
}

.fr-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  color: var(--fr-blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.fr-category-hero {
  min-height: 245px;
  padding: 34px 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  background: var(--fr-blue);
  color: var(--fr-white);
}

.fr-category-hero h1 {
  margin: 0;
  color: var(--fr-white);
  font-size: clamp(42px, 5vw, 64px);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: -.045em;
}

.fr-category-hero .fr-icon {
  width: 168px;
  height: 142px;
}

.fr-topic-list {
  margin-top: 36px;
  border-top: 1px solid var(--fr-line);
}

.fr-topic {
  border-bottom: 1px solid var(--fr-line);
}

.fr-topic summary {
  min-height: 76px;
  padding: 22px 2px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  list-style: none;
  color: var(--fr-blue);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.02em;
  cursor: pointer;
}

.fr-topic summary::-webkit-details-marker { display: none; }

.fr-topic-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--fr-blue);
  border: 1px solid var(--fr-line);
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  transition: transform .2s ease, border-color .2s ease;
}

.fr-topic[open] .fr-topic-mark {
  transform: rotate(45deg);
  border-color: var(--fr-blue);
}

.fr-topic-body {
  max-width: 780px;
  padding: 0 54px 30px 2px;
  color: var(--fr-text);
  font-size: 15px;
  line-height: 1.85;
}

.fr-topic-body p {
  margin: 0;
}

.fr-topic-body p + p {
  margin-top: 14px;
}

.fr-topic-body strong {
  color: var(--fr-blue-dark);
  font-weight: 760;
}

.fr-topic-body .fr-formula {
  margin: 18px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--fr-blue);
  background: rgba(53, 104, 255, .06);
  color: var(--fr-blue-dark);
  font-weight: 700;
}

.fr-source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--fr-line);
}

.fr-source-links a {
  color: var(--fr-blue);
  font-size: 13px;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.fr-site-note {
  margin: 42px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--fr-line);
  color: var(--fr-muted);
  font-size: 12px;
  line-height: 1.7;
}

@media (hover: hover) and (pointer: fine) {
  .fr-card:hover {
    background: var(--fr-blue-dark);
    transform: translateY(-1px);
  }

  .fr-card:hover .fr-card-arrow {
    transform: translateX(3px);
    background: rgba(255, 255, 255, .1);
  }

  .fr-card:hover .fr-icon,
  .fr-category-hero:hover .fr-icon {
    animation: fr-icon-float .75s ease-in-out both;
  }

  .fr-topic summary:hover {
    color: var(--fr-blue-dark);
  }
}

@media (max-width: 760px) {
  .fr-shell {
    width: calc(100% - 40px);
    padding-bottom: 54px;
  }

  .fr-shell > .proved-global-header {
    margin-bottom: 44px;
  }

  .fr-main {
    width: 100%;
  }

  .fr-intro {
    margin-bottom: 34px;
  }

  .fr-intro h1 {
    margin-bottom: 22px;
    font-size: 43px;
  }

  .fr-intro p {
    font-size: 15px;
  }

  .fr-card-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .fr-card {
    min-height: 232px;
    padding: 25px;
  }

  .fr-card h2 {
    font-size: 24px;
  }

  .fr-card p {
    font-size: 14px;
  }

  .fr-icon {
    width: 108px;
    height: 92px;
  }

  .fr-card-arrow {
    width: 38px;
    height: 38px;
    font-size: 19px;
  }

  .fr-back {
    margin-bottom: 20px;
  }

  .fr-category-hero {
    min-height: 190px;
    padding: 28px 24px;
    gap: 18px;
  }

  .fr-category-hero h1 {
    font-size: 38px;
  }

  .fr-category-hero .fr-icon {
    width: 112px;
    height: 98px;
  }

  .fr-topic-list {
    margin-top: 28px;
  }

  .fr-topic summary {
    min-height: 70px;
    padding: 20px 0;
    gap: 16px;
    font-size: 17px;
  }

  .fr-topic-mark {
    width: 34px;
    height: 34px;
  }

  .fr-topic-body {
    padding: 0 42px 26px 0;
    font-size: 14px;
  }
}

@media (max-width: 390px) {
  .fr-shell { width: calc(100% - 32px); }

  .fr-intro h1 { font-size: 38px; }

  .fr-category-hero {
    padding: 25px 20px;
  }

  .fr-category-hero h1 {
    font-size: 34px;
  }

  .fr-category-hero .fr-icon {
    width: 94px;
    height: 82px;
  }
}

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

  .fr-card,
  .fr-card-arrow,
  .fr-topic-mark {
    transition: none;
  }

  .fr-draw,
  .fr-scan,
  .fr-pop,
  .fr-bar,
  .fr-shield,
  .fr-check,
  .fr-icon {
    animation: none !important;
    stroke-dashoffset: 0 !important;
    transform: none !important;
  }
}

@keyframes fr-draw {
  to { stroke-dashoffset: 0; }
}

@keyframes fr-scan {
  0% { transform: translate(-8px, 4px); opacity: .45; }
  55% { transform: translate(12px, -4px); opacity: 1; }
  100% { transform: translate(3px, 1px); opacity: 1; }
}

@keyframes fr-pop {
  0% { transform: scale(.82); opacity: .25; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes fr-bar {
  0% { transform: scaleY(.08); }
  100% { transform: scaleY(1); }
}

@keyframes fr-icon-float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0); }
}