:root {
  --ink: #163142;
  --muted: #5c7484;
  --paper: #F6F8F9;
  --paper-2: #A6C7DB;
  --cream: #ffffff;
  --forest: #478DB7;
  --moss: #A6C7DB;
  --sun: #F1CB4C;
  --coral: #D49A18;
  --line: rgba(71, 141, 183, 0.22);
  --shadow: 0 24px 70px rgba(71, 141, 183, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 96px; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(241, 203, 76, 0.42), transparent 34rem),
    radial-gradient(circle at 92% 18%, rgba(166, 199, 219, 0.54), transparent 28rem),
    linear-gradient(145deg, #ffffff, var(--paper));
  font-family: Georgia, 'Noto Serif TC', 'Songti TC', serif;
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--coral); }
img { max-width: 100%; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(246, 248, 249, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: .75rem; font-weight: 800; letter-spacing: .04em; }
nav { display: flex; align-items: center; gap: clamp(.75rem, 2vw, 1.5rem); font-size: .95rem; }
.nav-cta { padding: .55rem .9rem; border: 1px solid var(--forest); border-radius: 999px; }
.menu-toggle {
  position: relative;
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .42);
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  color: #ffffff;
  cursor: pointer;
}
.menu-toggle span {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 19px;
  height: 2px;
  margin: 0;
  border-radius: 999px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transform-origin: center;
  transition: transform .22s ease, opacity .22s ease;
}
.menu-toggle span:nth-child(1) { transform: translate(-50%, calc(-50% - 6px)); }
.menu-toggle span:nth-child(3) { transform: translate(-50%, calc(-50% + 6px)); }

.hero, .section, .page-hero, .article, .cta, .site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(3rem, 8vw, 7rem) 0;
}

.hero h1, .page-hero h1, .article h1, .cta h2 {
  margin: .65rem 0 1rem;
  font-size: clamp(2.4rem, 6vw, 5.8rem);
  line-height: .98;
  letter-spacing: -.06em;
}

.hero p, .page-hero p, .article header p, .cta p {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-art {
  position: relative;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: rgba(255, 255, 255, .72);
  box-shadow: var(--shadow);
  transform: rotate(1.3deg);
}
.hero-art::before {
  content: '';
  position: absolute;
  inset: auto auto -1.1rem -1.1rem;
  width: 42%;
  height: 38%;
  border-radius: 999px;
  background: var(--sun);
  z-index: -1;
}
.hero-art img { border-radius: 1.45rem; }

.eyebrow {
  color: var(--coral);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: .85rem 1.2rem;
  border-radius: 999px;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-weight: 800;
}
.button.primary { background: var(--forest); color: var(--cream); box-shadow: 0 12px 28px rgba(71, 141, 183, .28); }
.button.ghost { border: 1px solid var(--line); background: rgba(255,255,255,.64); }

.section { padding: clamp(3rem, 7vw, 6rem) 0; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 6vw, 5rem); border-top: 1px solid var(--line); }
.section h2 { margin: .5rem 0 1rem; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.08; letter-spacing: -.04em; }
.feature-list { display: grid; gap: 1rem; }
.feature-list p, .card, .quotes figure, .steps div {
  margin: 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, .74);
}

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.section-head h2 { margin-bottom: 0; }
.testimonials-head {
  position: relative;
  display: block;
  text-align: center;
}
.testimonials-head .eyebrow {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { overflow: hidden; padding: 0; box-shadow: 0 18px 40px rgba(71, 141, 183, .12); }
.card img { width: 100%; aspect-ratio: 1.35; object-fit: cover; }
.card-body { padding: 1.2rem; }
.card h3 { margin: .4rem 0 .6rem; font-size: 1.35rem; line-height: 1.22; }
.card p { color: var(--muted); margin: 0; }

.warm { width: 100%; max-width: none; padding-inline: max(1rem, calc((100% - 1120px) / 2)); background: linear-gradient(135deg, rgba(166,199,219,.34), rgba(241,203,76,.22)); }
.quotes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.quotes blockquote { margin: 0 0 1rem; font-size: 1.35rem; line-height: 1.35; }
.quotes figcaption { color: var(--muted); font-family: ui-sans-serif, system-ui, sans-serif; }

.testimonial-carousel {
  position: relative;
}

.testimonial-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 34%);
  gap: 1rem;
  overflow-x: auto;
  padding: .35rem .1rem 1rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.testimonial-track::-webkit-scrollbar {
  display: none;
}

.testimonial-card {
  min-height: 100%;
  margin: 0;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid rgba(71, 141, 183, .22);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 42px rgba(71, 141, 183, .1);
  scroll-snap-align: start;
}

.testimonial-avatar {
  width: 3.4rem;
  height: 3.4rem;
  margin-bottom: 1rem;
  border-radius: 50%;
  background-image: url('/images/student-avatars.png');
  background-size: 500% 200%;
  background-position: var(--avatar-x) var(--avatar-y);
  background-repeat: no-repeat;
  border: 3px solid rgba(255, 255, 255, .95);
  box-shadow: 0 10px 24px rgba(71, 141, 183, .22);
}

.testimonial-card blockquote {
  margin: 0 0 1.2rem;
  color: #163142;
  font-size: clamp(1.12rem, 1.7vw, 1.35rem);
  font-weight: 800;
  line-height: 1.55;
}

.testimonial-card figcaption {
  display: grid;
  gap: .2rem;
  color: #4f6878;
}

.testimonial-card figcaption strong {
  color: #163142;
}

.testimonial-card figcaption span {
  font-size: .95rem;
}

.testimonial-controls {
  display: flex;
  justify-content: flex-end;
  gap: .55rem;
}

.carousel-button {
  display: grid;
  place-items: center;
  width: 2.55rem;
  height: 2.55rem;
  border: 1px solid rgba(71, 141, 183, .25);
  border-radius: 999px;
  color: #163142;
  background: #F1CB4C;
  cursor: pointer;
  font: inherit;
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
}

.carousel-button:hover {
  transform: translateY(-1px);
}

.article-carousel {
  position: relative;
}

.article-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(290px, 32%);
  gap: 1rem;
  overflow-x: auto;
  padding: .35rem .1rem 1rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}

.article-track::-webkit-scrollbar {
  display: none;
}

.article-slide-card {
  overflow: hidden;
  border: 1px solid rgba(71, 141, 183, .22);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 42px rgba(71, 141, 183, .1);
  scroll-snap-align: start;
}

.article-slide-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1.35;
  object-fit: cover;
}

.article-slide-body {
  padding: 1.2rem;
}

.article-slide-card h3 {
  margin: .4rem 0 .65rem;
  color: #163142;
  font-size: 1.28rem;
  line-height: 1.24;
}

.article-slide-card h3 a {
  color: inherit;
}

.article-slide-card p {
  margin: 0;
  color: #4f6878;
  line-height: 1.7;
}

.cta {
  margin-block: clamp(3rem, 8vw, 7rem);
  padding: clamp(2rem, 6vw, 4rem);
  color: var(--cream);
  background: linear-gradient(135deg, var(--forest), #2f6f97);
  border-radius: 2rem;
  box-shadow: var(--shadow);
}
.cta h2 { font-size: clamp(2.25rem, 5vw, 4.6rem); }
.cta .eyebrow, .cta p { color: #fff1b8; }
.cta .button.primary { background: var(--sun); color: var(--ink); }

.page-hero { padding: clamp(3rem, 8vw, 6rem) 0 2rem; }
.page-hero h1 { font-size: clamp(2.8rem, 7vw, 6.4rem); }
.article { padding: clamp(3rem, 8vw, 6rem) 0; }
.article header { width: min(820px, 100%); }
.article-cover { width: 100%; margin: 2rem 0; border-radius: 1.6rem; box-shadow: var(--shadow); }
.prose { width: min(760px, 100%); font-size: 1.13rem; }
.prose h2, .prose h3 { line-height: 1.18; margin-top: 2rem; }
.prose p { color: #314b5c; }
.prose a { color: var(--coral); text-decoration: underline; text-underline-offset: .18em; }
.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.4rem auto;
  border-radius: 1rem;
}
.prose blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.2rem;
  border-left: 5px solid #F1CB4C;
  border-radius: .8rem;
  background: rgba(166, 199, 219, .18);
  color: #163142;
}
.prose ul,
.prose ol {
  color: #314b5c;
  line-height: 1.9;
}

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.steps strong { color: var(--coral); font-family: ui-sans-serif, system-ui, sans-serif; }
.steps h2 { font-size: 1.5rem; }

.site-footer {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.footer-links { display: flex; gap: 1rem; flex-wrap: wrap; }

@media (max-width: 820px) {
  .site-header { align-items: center; }
  .hero, .split { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .grid, .quotes, .steps { grid-template-columns: 1fr; }
  .testimonial-track { grid-auto-columns: minmax(260px, 86%); }
  .article-track { grid-auto-columns: minmax(270px, 86%); }
  .section-head { align-items: start; flex-direction: column; }
  .testimonials-head {
    display: block;
    text-align: center;
  }
  .testimonials-head .eyebrow {
    position: static;
    display: block;
    transform: none;
    margin-bottom: .35rem;
  }
  .site-footer { flex-direction: column; }
}

/* Browser review: make the full header use the primary brand blue. */
.site-header {
  background: #478DB7;
  border-bottom-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 14px 34px rgba(71, 141, 183, 0.22);
}

.site-header a,
.site-header .brand,
.site-header nav a {
  color: #ffffff;
}

.site-header a:hover,
.site-header nav a:hover {
  color: #F1CB4C;
}

.site-header .nav-cta {
  border-color: #F1CB4C;
  background: #F1CB4C;
  color: #163142;
}

.site-header .nav-cta:hover {
  color: #163142;
  filter: brightness(1.04);
}

@media (max-width: 820px) {
  .site-header {
    padding: .75rem 1rem;
  }

  .site-header .brand {
    min-width: 0;
    max-width: calc(100% - 4rem);
  }

  .menu-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
  }

  .nav-open .menu-toggle span:nth-child(1) {
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .nav-open .menu-toggle span:nth-child(2) {
    opacity: 0;
  }

  .nav-open .menu-toggle span:nth-child(3) {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  #site-nav {
    position: absolute;
    inset: calc(100% + .5rem) 1rem auto;
    display: grid;
    gap: .35rem;
    padding: .75rem;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 1.1rem;
    background: rgba(71, 141, 183, .98);
    box-shadow: 0 22px 55px rgba(22, 49, 66, .22);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-.4rem);
    transition: opacity .2s ease, transform .2s ease;
  }

  .nav-open #site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  #site-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: .7rem .85rem;
    border-radius: .8rem;
    color: #ffffff;
    font-size: .98rem;
  }

  #site-nav a:hover {
    background: rgba(255, 255, 255, .12);
  }

  #site-nav .nav-cta {
    justify-content: center;
    margin-top: .25rem;
    background: #F1CB4C;
    color: #163142;
  }
}

/* Browser review: hero headline should feel closer to the original WordPress heading. */
.hero h1 {
  font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', 'Heiti TC', ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.18;
  font-size: clamp(2.35rem, 4.9vw, 4rem);
}

/* Browser review: use one consistent type family across the whole site. */
body,
button,
input,
textarea,
select,
.site-header,
.brand,
nav,
.eyebrow,
.button,
.hero h1,
.page-hero h1,
.article h1,
.cta h2,
.section h2,
.card h3,
.quotes figcaption,
.steps strong {
  font-family: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', 'Heiti TC', ui-sans-serif, system-ui, sans-serif;
}

.what-100ls {
  width: 100%;
  max-width: none;
  margin: clamp(1rem, 3vw, 2.5rem) 0;
  padding: clamp(3rem, 7vw, 5.5rem) max(1rem, calc((100% - 1120px) / 2));
  color: #ffffff;
  background:
    radial-gradient(circle at 18% 42%, rgba(241, 203, 76, 0.16), transparent 24rem),
    linear-gradient(135deg, #478DB7, #3f86b0);
}

.what-head {
  text-align: center;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.what-head span {
  display: block;
  margin-bottom: .45rem;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: .04em;
}

.what-head h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3.1vw, 2.65rem);
  line-height: 1.25;
  letter-spacing: .01em;
}

.what-body {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: clamp(2rem, 7vw, 6rem);
  align-items: center;
}

.what-copy {
  display: grid;
  gap: 1.35rem;
  font-size: clamp(1.02rem, 1.55vw, 1.22rem);
  line-height: 2;
}

.what-copy p,
.what-note {
  margin: 0;
}

.what-note {
  margin-top: clamp(2.2rem, 5vw, 4.5rem);
  font-size: clamp(1rem, 1.45vw, 1.18rem);
  line-height: 1.9;
  color: rgba(255, 255, 255, .95);
}

@media (max-width: 820px) {
  .what-body { grid-template-columns: 1fr; }
  .what-head { text-align: left; }
}

/* Browser review: use the 100LS book cover instead of abstract cards. */
.what-book {
  display: grid;
  place-items: center;
  position: relative;
  padding: clamp(1rem, 3vw, 2rem);
}

.what-book::before {
  content: '';
  position: absolute;
  inset: 8% 4% 6% 16%;
  border-radius: 2rem;
  background: #F1CB4C;
  transform: rotate(-5deg);
  opacity: .95;
}

.what-book img {
  position: relative;
  width: min(360px, 82vw);
  max-height: 480px;
  object-fit: contain;
  border-radius: 1.2rem;
  box-shadow: 0 28px 70px rgba(22, 49, 66, .28);
}

/* Browser review: restore original handwritten logo artwork, square and uncropped. */
.brand-logo {
  display: block;
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 0;
}

@media (max-width: 820px) {
  .brand-logo {
    width: 58px;
    height: 58px;
  }
}

.brand {
  gap: .95rem;
}

.brand-text {
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: .04em;
  white-space: nowrap;
}

@media (max-width: 820px) {
  .brand-text {
    font-size: .9rem;
    white-space: normal;
    line-height: 1.2;
  }
}

.learning-steps {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 7rem) 0;
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: clamp(2rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.steps-intro {
  position: sticky;
  top: 110px;
  align-self: start;
}

.steps-preface {
  margin: 0 0 1.5rem;
  padding: 1.2rem;
  border-left: 6px solid #F1CB4C;
  border-radius: 1rem;
  color: #314b5c;
  background: rgba(166, 199, 219, .22);
  line-height: 1.9;
}

.steps-intro h2 {
  margin: .6rem 0 .8rem;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 1.04;
  letter-spacing: -.03em;
  color: var(--ink);
}

.steps-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.8;
}

.steps-list {
  display: grid;
  gap: 1rem;
}

.step-card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid rgba(71, 141, 183, .22);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 18px 48px rgba(71, 141, 183, .1);
}

.step-card span {
  display: inline-flex;
  margin-bottom: .75rem;
  padding: .35rem .7rem;
  border-radius: 999px;
  background: #F1CB4C;
  color: #163142;
  font-weight: 900;
  font-size: .85rem;
  letter-spacing: .05em;
}

.step-card h3 {
  margin: 0 0 .65rem;
  color: #163142;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.25;
}

.step-card p {
  margin: 0;
  color: #4f6878;
  line-height: 1.9;
}

.step-card:nth-child(3) {
  border-color: rgba(241, 203, 76, .7);
  background: linear-gradient(135deg, rgba(241, 203, 76, .16), rgba(255, 255, 255, .82));
}

@media (max-width: 820px) {
  .learning-steps {
    grid-template-columns: 1fr;
  }
  .steps-intro {
    position: static;
  }
}

/* Browser review: tune learning-step title scale and highlight Step 4 like Step 3. */
.steps-intro h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.12;
}

.step-card:nth-child(4) {
  border-color: rgba(241, 203, 76, .7);
  background: linear-gradient(135deg, rgba(241, 203, 76, .16), rgba(255, 255, 255, .82));
}

#learning-steps {
  scroll-margin-top: 110px;
}

.materials-section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 7rem) 0;
  border-bottom: 1px solid var(--line);
}

.materials-head {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: .75rem clamp(1.25rem, 4vw, 3rem);
}

.materials-head h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -.03em;
}

.materials-head p {
  flex: 1 1 360px;
  max-width: 620px;
  margin: 0 0 .45rem;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.8;
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.material-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 100%;
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid rgba(71, 141, 183, .22);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, .76);
  box-shadow: 0 18px 48px rgba(71, 141, 183, .1);
}

.material-image {
  display: block;
  width: 100%;
  height: 176px;
  margin: 0 0 1rem;
  padding: 0;
  border-radius: 1rem;
  object-fit: contain;
  object-position: center;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.material-image-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem;
  width: 100%;
  margin-bottom: 1rem;
}

.material-image-pair img {
  display: block;
  width: 100%;
  height: 176px;
  padding: 0;
  border-radius: 1rem;
  object-fit: contain;
  object-position: center;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.material-card-wide {
  grid-column: auto;
}

.material-card.highlight {
  border-color: rgba(241, 203, 76, .75);
  background: linear-gradient(135deg, rgba(241, 203, 76, .18), rgba(255, 255, 255, .86));
}

.material-number {
  display: inline-flex;
  justify-self: start;
  width: fit-content;
  margin-bottom: .75rem;
  padding: .34rem .72rem;
  border-radius: 999px;
  background: #F1CB4C;
  color: #163142;
  font-weight: 900;
  font-size: .85rem;
  letter-spacing: .04em;
}

.material-card h3 {
  margin: 0 0 .65rem;
  color: #163142;
  font-size: clamp(1.45rem, 2.3vw, 2rem);
  line-height: 1.2;
}

.material-note {
  margin: 0 0 .8rem;
  color: #4f6878;
  line-height: 1.75;
  font-weight: 700;
}

.material-card ul {
  display: grid;
  gap: .55rem;
  margin: 0;
  padding-left: 1.15rem;
  color: #4f6878;
  line-height: 1.8;
}

.material-card li::marker {
  color: #478DB7;
}

.materials-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .9rem;
  margin-top: 1rem;
  padding: 0;
  color: #163142;
}

.materials-cta h3 {
  margin: 0;
  color: #4f6878;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.2;
}

.materials-cta .button {
  flex: 0 0 auto;
  min-height: 0;
  padding: .78rem 1.05rem;
  box-shadow: none;
}

@media (max-width: 820px) {
  .materials-head {
    display: block;
    align-items: flex-start;
    text-align: left;
    margin-bottom: 1rem;
  }

  .materials-head p {
    max-width: none;
    margin: .45rem 0 0;
    font-size: 1rem;
    line-height: 1.65;
  }

  .materials-grid {
    grid-template-columns: 1fr;
  }

  .material-image-pair {
    max-width: 360px;
  }

  .material-image-pair img {
    height: 150px;
  }

  .material-image {
    max-width: 360px;
    height: 150px;
    margin-bottom: .8rem;
  }

  .materials-cta {
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

.corpus-features {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 7rem) 0;
  border-bottom: 1px solid var(--line);
}

.corpus-features-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.4rem);
}

.corpus-features-head h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -.03em;
}

.feature-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(1.25rem, 4vw, 2rem);
  align-items: center;
}

.feature-showcase + .feature-showcase {
  margin-top: clamp(1.5rem, 5vw, 3rem);
}

.feature-showcase-reverse {
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
}

.feature-image-frame {
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.feature-image-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.feature-copy-grid {
  display: grid;
  gap: 1rem;
}

.feature-copy-card {
  padding: clamp(1.25rem, 3vw, 1.8rem);
  border: 1px solid rgba(71, 141, 183, .22);
  border-radius: 1.45rem;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 18px 48px rgba(71, 141, 183, .09);
}

.feature-copy-card-large {
  background: linear-gradient(135deg, rgba(166, 199, 219, .2), rgba(255, 255, 255, .82));
}

.feature-kicker {
  display: inline-flex;
  width: fit-content;
  margin-bottom: .75rem;
  padding: .34rem .72rem;
  border-radius: 999px;
  background: #F1CB4C;
  color: #163142;
  font-size: .85rem;
  font-weight: 900;
  letter-spacing: .04em;
}

.feature-copy-card h3 {
  margin: 0 0 .55rem;
  color: #163142;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.22;
}

.feature-step {
  margin: 0 0 .9rem;
  color: #478DB7;
  font-weight: 900;
  line-height: 1.65;
}

.feature-copy-card p {
  margin: 0;
  color: #4f6878;
  line-height: 1.9;
}

.feature-copy-card p + p {
  margin-top: .75rem;
}

.review-methods {
  display: grid;
  gap: .8rem;
  margin-top: 1rem;
}

.review-methods div {
  padding: .95rem 1rem;
  border-left: 4px solid #F1CB4C;
  border-radius: .95rem;
  background: rgba(246, 248, 249, .76);
}

.review-methods strong {
  display: block;
  margin-bottom: .25rem;
  color: #163142;
  font-size: 1.04rem;
}

.review-methods p {
  margin: 0;
}

@media (max-width: 820px) {
  .feature-showcase,
  .feature-showcase-reverse {
    grid-template-columns: 1fr;
  }
}