:root{
  --bg:#f7f9fc;
  --panel:#ffffff;
  --line:#d9e1ee;
  --line-strong:#b9c4d8;
  --text:#172033;
  --muted:#56627a;
  --brand:#1e40af;
  --brand-2:#1d4ed8;
  --good:#047857;
  --warn:#b45309;
  --bad:#b91c1c;
  --chip:#eef4ff;
  --shadow:0 12px 28px rgba(16,24,40,.08);
  --radius:18px;
  --radius-sm:12px;
  --max:1200px;
  --content:760px;
  color-scheme: light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:linear-gradient(180deg,#f8fbff 0%,#f7f9fc 180px,#f7f9fc 100%);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",sans-serif;
  line-height:1.75;
  letter-spacing:.01em;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
code,kbd,pre{
  font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;
}
pre{
  background:#0f172a;
  color:#e5eefc;
  padding:18px;
  border-radius:16px;
  overflow:auto;
  font-size:14px;
  line-height:1.6;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.05);
}
pre[data-copy]{position:relative}
.copy-button{
  position:absolute;
  top:10px;
  right:10px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);
  color:#fff;
  border-radius:999px;
  padding:6px 10px;
  font-size:12px;
  cursor:pointer;
}
.copy-button.is-copied{background:rgba(16,185,129,.22)}
table{
  width:100%;
  border-collapse:collapse;
  background:var(--panel);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
th,td{
  padding:14px 16px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
th{
  background:#f1f5fb;
  font-weight:700;
}
tbody tr:last-child td{border-bottom:none}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid rgba(185,196,216,.4);
}
.site-header-inner{
  max-width:var(--max);
  margin:0 auto;
  padding:14px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand{
  display:flex;
  gap:10px;
  align-items:center;
  font-weight:800;
  color:var(--text);
  letter-spacing:.02em;
}
.brand-badge{
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border-radius:12px;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),#4f46e5);
  box-shadow:0 10px 20px rgba(37,99,235,.22);
  font-size:17px;
}
.top-links{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:14px;
  color:var(--muted);
}
.top-links a{
  color:var(--muted);
}
.hero{
  max-width:var(--max);
  margin:0 auto;
  padding:32px 22px 18px;
}
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  color:var(--muted);
  font-size:14px;
  margin-bottom:14px;
}
.crumb-sep{color:#8fa0b8}
.hero-card{
  background:linear-gradient(135deg,rgba(30,64,175,.95),rgba(79,70,229,.92));
  color:#fff;
  border-radius:24px;
  padding:30px;
  box-shadow:0 22px 44px rgba(36,56,118,.18);
  position:relative;
  overflow:hidden;
}
.hero-card::after{
  content:"";
  position:absolute;
  inset:auto -60px -60px auto;
  width:220px;
  height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
}
.chapter-meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:12px;
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  font-size:13px;
  font-weight:600;
}
.hero h1{
  font-size:clamp(30px,4vw,48px);
  line-height:1.15;
  margin:0 0 14px;
  letter-spacing:.01em;
}
.hero p.lede{
  margin:0;
  max-width:780px;
  font-size:18px;
  line-height:1.8;
  color:rgba(255,255,255,.92);
}
.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:22px;
}
.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  border-radius:999px;
  cursor:pointer;
  font-weight:700;
  font-size:14px;
  padding:12px 18px;
  background:var(--brand);
  color:#fff;
  box-shadow:0 10px 22px rgba(37,99,235,.22);
}
.button:hover{text-decoration:none;filter:brightness(1.04)}
.button.secondary{
  background:rgba(255,255,255,.14);
  color:#fff;
  box-shadow:none;
  border:1px solid rgba(255,255,255,.2);
}
.layout{
  max-width:var(--max);
  margin:0 auto;
  padding:0 22px 60px;
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:22px;
}
.course-sidebar{
  position:relative;
}
.sidebar-inner{
  position:sticky;
  top:96px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:22px;
  padding:20px;
  box-shadow:var(--shadow);
}
.sidebar-eyebrow{
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  font-weight:800;
  margin-bottom:12px;
}
.course-home-link{
  display:block;
  font-size:18px;
  font-weight:800;
  color:var(--text);
  margin-bottom:18px;
}
.course-home-link.is-current{color:var(--brand)}
.progress-wrap{margin-bottom:18px}
.progress-label{
  display:flex;
  justify-content:space-between;
  gap:12px;
  margin-bottom:8px;
  font-size:13px;
  color:var(--muted);
}
.progress-bar{
  height:10px;
  background:#edf2fb;
  border-radius:999px;
  overflow:hidden;
}
#course-progress-value{
  width:0%;
  height:100%;
  background:linear-gradient(90deg,var(--brand),#6366f1);
  transition:width .25s ease;
}
.chapter-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:8px;
}
.chapter-link{
  display:grid;
  grid-template-columns:28px 1fr 18px;
  gap:10px;
  align-items:start;
  padding:12px 12px;
  border-radius:16px;
  color:var(--text);
  border:1px solid transparent;
}
.chapter-link:hover{
  text-decoration:none;
  background:#f6f9ff;
}
.chapter-link.is-current{
  background:#eef4ff;
  border-color:#c8d7fb;
}
.chapter-index{
  display:grid;
  place-items:center;
  width:28px;
  height:28px;
  border-radius:999px;
  background:#eef2ff;
  color:var(--brand);
  font-size:13px;
  font-weight:800;
}
.chapter-label{
  font-size:14px;
  line-height:1.5;
}
.chapter-state{
  width:16px;
  height:16px;
  margin-top:6px;
  border-radius:999px;
  border:1.5px solid #c5d2e8;
}
.chapter-link.is-visited .chapter-state{
  background:var(--good);
  border-color:var(--good);
  box-shadow:inset 0 0 0 3px #fff;
}
.back-to-list{
  display:inline-flex;
  margin-top:18px;
  font-size:14px;
}
.content{
  min-width:0;
}
.content article{
  max-width:var(--content);
}
.content section{
  margin:0 0 34px;
}
.content h2{
  font-size:30px;
  line-height:1.25;
  margin:0 0 14px;
}
.content h3{
  font-size:22px;
  line-height:1.35;
  margin:28px 0 12px;
}
.content h4{
  font-size:18px;
  margin:20px 0 10px;
}
.content p{
  margin:0 0 16px;
}
.content ul,.content ol{
  margin:0 0 18px 1.25em;
  padding:0;
}
.content li{margin:0 0 8px}
.lead-box,.note-box,.warning-box,.success-box{
  border-radius:18px;
  padding:18px 18px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow:var(--shadow);
}
.note-box{
  background:#f8fbff;
  border-color:#d7e7ff;
}
.warning-box{
  background:#fff9f1;
  border-color:#f4d39a;
}
.success-box{
  background:#f2fbf7;
  border-color:#bde7d2;
}
.summary-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:12px;
}
.summary-list li{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:14px 16px;
  box-shadow:var(--shadow);
}
.callout-quote{
  border-left:4px solid var(--brand);
  margin:22px 0;
  padding:10px 0 10px 16px;
  color:var(--muted);
  font-weight:700;
}
.figure-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px;
  margin:22px 0;
  box-shadow:var(--shadow);
}
.figure-card figcaption{
  color:var(--muted);
  font-size:14px;
  margin-top:12px;
}
.inline-chip{
  display:inline-block;
  padding:2px 8px;
  border-radius:999px;
  background:var(--chip);
  color:var(--brand);
  font-weight:700;
  font-size:13px;
}
.rr-table td:first-child, .rr-table th:first-child{white-space:nowrap}
.code-annotation{
  color:#cbd5e1;
  display:block;
  margin-top:10px;
  font-size:13px;
}
.page-nav{
  margin-top:40px;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 18px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  color:var(--text);
  font-weight:700;
}
.nav-link:hover{text-decoration:none;background:#f8fbff}
.nav-link-primary{
  background:linear-gradient(135deg,var(--brand),#4f46e5);
  color:#fff;
  border-color:transparent;
}
.kv-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin:22px 0;
}
.kv-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow);
}
.kv-card .kv-label{
  font-size:13px;
  color:var(--muted);
  margin-bottom:8px;
}
.kv-card .kv-value{
  font-size:18px;
  font-weight:800;
  line-height:1.4;
}
.definition-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.definition-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow);
}
.definition-card h4{
  margin-top:0;
}
.step-list{
  counter-reset:steps;
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:12px;
}
.step-list li{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px 18px 16px 58px;
  box-shadow:var(--shadow);
}
.step-list li::before{
  counter-increment:steps;
  content:counter(steps);
  position:absolute;
  left:16px;
  top:16px;
  width:30px;
  height:30px;
  border-radius:999px;
  background:#eef2ff;
  color:var(--brand);
  font-weight:800;
  display:grid;
  place-items:center;
}
.sim-root{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px;
  box-shadow:var(--shadow);
}
.sim-controls{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  align-items:flex-end;
  margin-bottom:16px;
}
.sim-control{
  display:grid;
  gap:8px;
}
.sim-control label{
  font-size:14px;
  font-weight:700;
}
.sim-control input[type="range"]{
  width:min(320px,80vw);
}
.checkbox-wrap{
  display:flex;
  gap:10px;
  align-items:center;
  font-size:14px;
  font-weight:700;
}
.sim-metrics{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-bottom:16px;
}
.metric-card{
  background:#f8fbff;
  border:1px solid #d9e6ff;
  border-radius:16px;
  padding:14px 16px;
}
.metric-card .label{
  display:block;
  color:var(--muted);
  font-size:12px;
  margin-bottom:6px;
}
.metric-card .value{
  font-size:24px;
  font-weight:800;
  line-height:1.2;
}
.network-grid{
  display:grid;
  grid-template-columns:repeat(7,minmax(0,1fr));
  gap:10px;
  align-items:start;
  margin:18px 0;
}
.network-node{
  border:1px solid var(--line);
  background:#fff;
  border-radius:18px;
  padding:14px 12px;
  min-height:112px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  box-shadow:var(--shadow);
  position:relative;
}
.network-node.is-active{
  border-color:#91b2ff;
  background:#eef4ff;
  box-shadow:0 0 0 3px rgba(59,130,246,.14), var(--shadow);
}
.node-title{
  font-weight:800;
  font-size:14px;
  line-height:1.4;
}
.node-sub{
  color:var(--muted);
  font-size:12px;
  line-height:1.5;
}
.node-tag{
  display:inline-flex;
  align-self:flex-start;
  padding:4px 8px;
  border-radius:999px;
  background:#f3f5fb;
  color:var(--muted);
  font-size:11px;
  font-weight:700;
}
.packet-panel{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:14px;
}
.packet-log, .cache-box{
  background:#f8fbff;
  border:1px solid #d9e6ff;
  border-radius:16px;
  padding:14px 16px;
}
.packet-log h4,.cache-box h4,.sim-root h4{
  margin:0 0 10px;
}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  background:#eef4ff;
  color:var(--brand);
  font-size:12px;
  font-weight:800;
  margin-bottom:10px;
}
.timeline-svg{
  width:100%;
  height:auto;
  display:block;
  margin-top:12px;
  border-radius:16px;
  background:#fff;
  border:1px solid var(--line);
}
.ttl-explanation{
  margin-top:12px;
  color:var(--muted);
}
.quiz-root{
  display:grid;
  gap:18px;
}
.quiz-banner{
  background:#eef4ff;
  border:1px solid #c8d7fb;
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow);
}
.quiz-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:18px;
  box-shadow:var(--shadow);
}
.quiz-card h3{
  margin:0 0 12px;
}
.option-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.option-item{
  border:1px solid var(--line);
  border-radius:16px;
  padding:14px 16px;
  cursor:pointer;
  background:#fff;
  transition:.15s ease;
}
.option-item:hover{
  border-color:#bfd2ff;
  background:#f8fbff;
}
.option-item.is-selected{
  border-color:#7aa2ff;
  background:#eef4ff;
}
.option-item.is-correct{
  border-color:#73c69f;
  background:#ecfaf3;
}
.option-item.is-wrong{
  border-color:#ef9a9a;
  background:#fff3f3;
}
.option-item input{display:none}
.quiz-feedback{
  margin-top:12px;
  padding:14px 16px;
  border-radius:16px;
  display:none;
}
.quiz-feedback.is-visible{display:block}
.quiz-feedback.good{
  background:#ecfaf3;
  border:1px solid #73c69f;
}
.quiz-feedback.bad{
  background:#fff3f3;
  border:1px solid #ef9a9a;
}
.quiz-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.small{
  font-size:13px;
  color:var(--muted);
}
footer.site-footer{
  max-width:var(--max);
  margin:0 auto;
  padding:0 22px 70px;
  color:var(--muted);
}
.footer-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px 22px;
  box-shadow:var(--shadow);
}
.noscript{
  background:#fff7ed;
  color:#9a3412;
  border:1px solid #fed7aa;
  border-radius:16px;
  padding:14px 16px;
  margin:16px 0;
}
details{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:14px 16px;
  box-shadow:var(--shadow);
  margin:14px 0;
}
summary{
  cursor:pointer;
  font-weight:800;
}
@media (max-width: 1024px){
  .layout{
    grid-template-columns:1fr;
  }
  .sidebar-inner{
    position:static;
  }
}
@media (max-width: 860px){
  .kv-grid, .definition-grid, .sim-metrics, .packet-panel{
    grid-template-columns:1fr;
  }
  .network-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media (max-width: 640px){
  .site-header-inner,.hero,.layout,footer.site-footer{
    padding-left:16px;
    padding-right:16px;
  }
  .hero-card{padding:24px}
  .content h2{font-size:26px}
  .content h3{font-size:20px}
  .network-grid{
    grid-template-columns:1fr;
  }
  .button,.nav-link{width:100%}
  .hero-actions, .page-nav{
    display:grid;
    grid-template-columns:1fr;
  }
}



.button.secondary{
  background:#fff;
  color:var(--text);
  box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.hero-actions .button.secondary{
  background:rgba(255,255,255,.14);
  color:#fff;
  box-shadow:none;
  border:1px solid rgba(255,255,255,.2);
}
.practice-summary-card{
  background:#eef4ff;
  border:1px solid #c8d7fb;
  border-radius:20px;
  padding:18px;
  box-shadow:var(--shadow);
  margin:22px 0 28px;
}
.practice-summary-card strong{
  display:block;
  margin-bottom:6px;
}
.practice-section{
  margin:34px 0;
}
.practice-section-head{
  margin-bottom:14px;
}
.practice-section-head h2{
  margin-bottom:8px;
}
.practice-stack{
  display:grid;
  gap:16px;
}
.practice-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px;
  box-shadow:var(--shadow);
}
.practice-card.is-mastered{
  border-color:#89d1ad;
  box-shadow:0 0 0 3px rgba(16,185,129,.10), var(--shadow);
}
.practice-label-row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:10px;
}
.practice-title{
  margin:0 0 14px;
  font-size:20px;
  line-height:1.5;
}
.practice-status{
  min-height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
}
.practice-status.is-mastered{
  background:#ecfaf3;
  color:var(--good);
  border:1px solid #9fdfbc;
}
.choice-list{
  display:grid;
  gap:10px;
  margin:0 0 14px;
}
.choice-item{
  display:grid;
  grid-template-columns:auto auto 1fr;
  align-items:start;
  gap:12px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:16px;
  cursor:pointer;
  background:#fff;
  transition:.15s ease;
}
.choice-item:hover{
  border-color:#bfd2ff;
  background:#f8fbff;
}
.choice-item.is-selected{
  border-color:#7aa2ff;
  background:#eef4ff;
}
.choice-item.is-correct{
  border-color:#79c79f;
  background:#ecfaf3;
}
.choice-item.is-wrong{
  border-color:#ef9a9a;
  background:#fff3f3;
}
.choice-item input{
  margin-top:4px;
}
.choice-badge{
  display:inline-grid;
  place-items:center;
  width:24px;
  height:24px;
  border-radius:999px;
  background:#f1f5fb;
  color:var(--muted);
  font-size:12px;
  font-weight:800;
}
.number-row{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:14px;
}
.practice-input{
  width:min(240px, 100%);
  padding:12px 14px;
  border:1px solid var(--line-strong);
  border-radius:14px;
  font-size:16px;
  background:#fff;
}
.practice-input:focus{
  outline:none;
  border-color:#7aa2ff;
  box-shadow:0 0 0 4px rgba(59,130,246,.12);
}
.practice-unit{
  color:var(--muted);
  font-weight:700;
}
.practice-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:2px;
}
.practice-feedback{
  margin-top:14px;
  padding:14px 16px;
  border-radius:16px;
  display:none;
}
.practice-feedback.is-visible{display:block}
.practice-feedback.good{
  background:#ecfaf3;
  border:1px solid #73c69f;
}
.practice-feedback.bad{
  background:#fff3f3;
  border:1px solid #ef9a9a;
}
.practice-feedback.neutral{
  background:#fff9f1;
  border:1px solid #f4d39a;
}
.practice-feedback p{
  margin:0;
}
.hint-box{
  margin:14px 0 0;
  border:1px dashed #c6d4ec;
  border-radius:16px;
  background:#f8fbff;
}
.hint-box summary{
  cursor:pointer;
  padding:12px 14px;
  font-weight:700;
  list-style:none;
}
.hint-box summary::-webkit-details-marker{display:none}
.hint-box p{
  padding:0 14px 14px;
  margin:0;
  color:var(--muted);
}
.formula-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin:22px 0;
}
.formula-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px;
  box-shadow:var(--shadow);
}
.formula-name{
  font-size:13px;
  color:var(--muted);
  margin-bottom:8px;
}
.formula-expression{
  font-weight:800;
  font-size:18px;
  line-height:1.5;
  margin-bottom:10px;
  word-break:break-word;
}
.formula-note{
  color:var(--muted);
  font-size:14px;
}
.review-root{
  display:grid;
  gap:18px;
  margin-top:18px;
}
.review-overview{
  background:#eef4ff;
  border:1px solid #c8d7fb;
  border-radius:22px;
  padding:20px;
  box-shadow:var(--shadow);
}
.review-progress{
  width:100%;
  height:14px;
  border-radius:999px;
  background:#dde8fd;
  overflow:hidden;
  margin:12px 0 10px;
}
.review-progress > div{
  height:100%;
  width:0%;
  background:linear-gradient(90deg,var(--brand),#4f46e5);
}
.review-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}
.review-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px;
  box-shadow:var(--shadow);
}
.review-card .label{
  display:block;
  color:var(--muted);
  font-size:13px;
  margin-bottom:6px;
}
.review-card .value{
  font-size:22px;
  font-weight:800;
  line-height:1.2;
}
.review-table{
  width:100%;
}
.review-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:10px;
}
.review-list li{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:14px 16px;
  box-shadow:var(--shadow);
}
.review-list a{
  font-weight:700;
}
.review-empty{
  background:#ecfaf3;
  border:1px solid #9fdfbc;
  border-radius:18px;
  padding:16px;
  box-shadow:var(--shadow);
}
.review-note{
  color:var(--muted);
  font-size:14px;
}
@media (max-width: 1024px){
  .formula-strip, .review-grid{
    grid-template-columns:1fr;
  }
}