:root {
  --ink: #10263a;
  --ink-soft: #40586a;
  --muted: #5f7180;
  --paper: #f3f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fbfd;
  --line: #d7e4ec;
  --line-strong: #c4d7e2;
  --brand: #00b9b4;
  --brand-dark: #066c72;
  --accent: #4cecc5;
  --navy: #123f63;
  --navy-deep: #0b2f4a;
  --mint: #dff9f1;
  --warm: #f8d774;
  --green: var(--brand-dark);
  --green-dark: var(--navy);
  --orange: var(--brand);
  --yellow: var(--accent);
  --shadow-sm: 0 8px 24px rgba(20, 62, 91, .07);
  --shadow: 0 16px 38px rgba(20, 62, 91, .10);
  --shadow-lg: 0 24px 56px rgba(20, 62, 91, .13);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 24px;
  --pill: 999px;
  --max: 1120px;
  --reading: 820px;
  --sidebar: 250px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font: 16px/1.62 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
}
main { background: var(--surface); }
a { color: var(--brand-dark); text-underline-offset: .18em; text-decoration-thickness: .08em; }
a:hover { color: #006d73; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}
img, svg { max-width: 100%; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
.skip-link {
  position: fixed; left: 1rem; top: -5rem; z-index: 100;
  padding: .75rem 1rem; border-radius: 10px; background: var(--ink); color: white;
}
.skip-link:focus { top: 1rem; }
.wrap { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-sm); backdrop-filter: blur(14px); }
.header-inner { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: .85rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--ink); font-weight: 850; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { width: 39px; height: 39px; flex: 0 0 39px; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius-sm); background: var(--brand) url("favicon.svg") center/cover no-repeat; color: transparent; box-shadow: 0 8px 18px rgba(0,150,154,.20); }
.nav { display: flex; align-items: center; justify-content: flex-end; gap: .25rem; flex-wrap: wrap; }
.nav a { padding: .46rem .65rem; border-radius: 10px; color: var(--ink); text-decoration: none; font-size: .91rem; font-weight: 750; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--mint); color: var(--brand-dark); }
.hero { padding: clamp(2.6rem, 6vw, 5rem) 0 3rem; overflow: hidden; position: relative; }
.hero::before { content: ""; position: absolute; width: 430px; height: 430px; border: 1px solid rgba(24,95,74,.16); border-radius: 50%; right: -140px; top: -150px; box-shadow: 0 0 0 70px rgba(24,95,74,.04), 0 0 0 140px rgba(24,95,74,.025); }
.logistics-hero { min-height: 650px; padding: clamp(2.5rem, 5vw, 4.75rem) 0 1.7rem; isolation: isolate; background: linear-gradient(180deg, #617b89 0%, var(--navy) 38%, var(--navy-deep) 100%); color: white; }
.logistics-hero::before { width: 72%; height: 76%; right: auto; left: -12%; top: -34%; border: 0; border-radius: 50%; background: radial-gradient(circle, rgba(255,217,151,.98) 0%, rgba(251,188,130,.48) 30%, rgba(255,223,174,.12) 58%, transparent 72%); box-shadow: none; filter: blur(2px); }
.logistics-hero::after { content: ""; position: absolute; inset: 0; z-index: -2; opacity: .42; background: radial-gradient(ellipse at 12% 20%, rgba(255,255,255,.65) 0 2%, transparent 2.4%), radial-gradient(ellipse at 24% 17%, rgba(255,255,255,.5) 0 4%, transparent 4.6%), radial-gradient(ellipse at 39% 24%, rgba(255,255,255,.28) 0 6%, transparent 6.7%), radial-gradient(ellipse at 76% 42%, rgba(255,255,255,.16) 0 8%, transparent 8.7%), linear-gradient(115deg, rgba(255,255,255,.08), transparent 42%); }
.logistics-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(380px, .92fr); align-items: center; gap: clamp(2rem, 4vw, 4.5rem); position: relative; z-index: 2; }
.logistics-copy { min-width: 0; }
.logistics-copy .eyebrow { color: #c6fff0; }
.logistics-copy h1 { max-width: 720px; font-size: clamp(2.2rem, 3.5vw, 3.35rem); text-shadow: 0 3px 24px rgba(0,25,47,.25); }
.logistics-copy .lede { max-width: 750px; color: #e4edf1; }
.hero-product-search { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .8rem; width: min(100%, 790px); margin: 1.35rem 0 .8rem; }
.search-capsule { min-width: 0; height: 66px; display: flex; align-items: center; padding: .45rem .7rem; border: 1px solid rgba(255,255,255,.8); border-radius: 999px; background: white; box-shadow: 0 14px 32px rgba(0,28,51,.2); }
.source-badges { flex: 0 0 auto; display: flex; gap: .33rem; margin-right: .65rem; }
.source-badges span { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 50%; background: #d8dee7; color: #78889a; font-size: .72rem; font-weight: 850; }
.source-badges span:nth-child(2) { font-size: .55rem; }
.search-capsule input { width: 100%; min-width: 0; height: 100%; border: 0; outline: 0; background: transparent; color: #183044; font: inherit; font-size: 1.05rem; }
.search-capsule input::placeholder { color: #a2aab2; }
.image-hint { flex: 0 0 auto; margin-inline: .45rem .2rem; color: #8ea2b8; font-size: 1.55rem; }
.image-hint svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.hero-product-search button { min-width: 150px; padding: 0 1.5rem; border: 0; border-radius: var(--pill); background: var(--accent); color: var(--navy-deep); font: inherit; font-size: 1.05rem; font-weight: 900; letter-spacing: .025em; cursor: pointer; box-shadow: 0 14px 32px rgba(0,25,47,.22); }
.hero-product-search button:hover { background: #72f7d6; transform: translateY(-1px); }
.hero-shortcuts { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: .6rem; }
.hero-shortcuts a { padding: .38rem .9rem; border: 1px solid rgba(255,255,255,.7); border-radius: 999px; color: white; text-decoration: none; font-size: .88rem; font-weight: 750; }
.hero-shortcuts a:hover { background: rgba(255,255,255,.13); color: white; }
.hero-external-note { margin: .6rem 0 0; color: #c9dce6; font-size: .78rem; }
.hero-trust { max-width: 790px; margin: .95rem 0 0; padding-left: .8rem; border-left: 3px solid #43f0c5; color: #dce9ee; font-size: .78rem; }
.sky-visual { position: relative; min-height: 430px; }
.plane-illustration { position: absolute; z-index: 2; width: 116%; max-width: none; right: -15%; top: 2%; filter: drop-shadow(0 26px 22px rgba(1,28,48,.28)); }
.route-orbit { position: absolute; z-index: 1; border: 1px dashed rgba(113,247,213,.5); border-radius: 50%; transform: rotate(-16deg); }
.orbit-one { width: 430px; height: 210px; right: 2%; top: 24%; }
.orbit-two { width: 320px; height: 155px; right: 16%; top: 31%; opacity: .55; }
.parcel { position: absolute; z-index: 3; padding: .5rem .75rem; border: 1px solid rgba(255,255,255,.25); border-radius: 12px; background: rgba(8,46,71,.72); color: #e7f1f4; font-size: .75rem; backdrop-filter: blur(8px); box-shadow: 0 8px 22px rgba(0,25,47,.2); }
.parcel span { color: #51f1c9; font-weight: 900; margin-right: .3rem; }
.parcel-a { left: 5%; bottom: 18%; }.parcel-b { left: 37%; bottom: 5%; }.parcel-c { right: 2%; bottom: 19%; }
.hero-process { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; margin-top: .9rem; padding: .75rem 1rem; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; background: rgba(255,255,255,.13); backdrop-filter: blur(12px); color: #e5eef2; font-size: .86rem; text-align: center; }
.hero-process b { display: inline-grid; place-items: center; width: 25px; height: 25px; margin-right: .35rem; border-radius: 50%; background: rgba(255,255,255,.14); color: #6ff6d4; }
.hero-process b svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.eyebrow { margin: 0 0 .65rem; color: var(--brand-dark); text-transform: uppercase; letter-spacing: .13em; font-size: .76rem; font-weight: 850; }
h1, h2, h3 { line-height: 1.13; letter-spacing: -.035em; }
h1 { margin: 0; max-width: 880px; font-size: clamp(2.45rem, 5.4vw, 4.6rem); }
.inner-hero h1 { max-width: 820px; font-size: clamp(1.75rem, 3.2vw, 2.8rem); }
h2 { margin: 0 0 .8rem; font-size: clamp(1.55rem, 3.5vw, 2.35rem); letter-spacing: -.03em; }
h3 { margin: 0 0 .5rem; font-size: 1.16rem; }
p { margin: 0 0 .82rem; }
.lede { margin: 1rem 0 1.15rem; max-width: 760px; font-size: clamp(1.06rem, 2vw, 1.24rem); color: #40504a; }
.actions { display: flex; flex-wrap: wrap; gap: .65rem; margin: 1.25rem 0 .55rem; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; min-height: 47px; padding: .72rem 1.1rem; border: 1px solid #25d3b8; border-radius: var(--pill); background: var(--accent); color: var(--navy-deep); text-decoration: none; font-weight: 850; box-shadow: 0 10px 22px rgba(0,150,154,.14); }
.button:hover { background: #74f3d3; color: var(--navy-deep); transform: translateY(-1px); }
.button.secondary { background: white; color: var(--green-dark); box-shadow: none; }
.button.secondary:hover { background: #edfdf8; }
.button.textual { border-color: transparent; background: transparent; color: var(--green-dark); padding-inline: .45rem; }
.external-note { color: var(--muted); font-size: .82rem; }
.section { padding: clamp(2.5rem, 5vw, 4.5rem) 0; border-top: 1px solid #edf2f5; background: var(--surface); }
.section.white { background: var(--surface); }
.section.green { background: var(--surface); color: var(--ink); }
.green .eyebrow { color: var(--brand-dark); }
.section-head { max-width: 750px; margin-bottom: 1.45rem; }
.section-head p { color: var(--muted); }
.green .section-head p, .green .muted { color: var(--muted); }
.quick-answer { margin-top: -1.25rem; position: relative; }
.answer-box { display: grid; grid-template-columns: auto 1fr; gap: .85rem; padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.answer-box .stamp { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid #bce8dc; border-radius: var(--radius-sm); background: var(--mint); color: var(--brand-dark); font-weight: 900; }
.answer-box strong { display: block; margin-bottom: .3rem; }
.grid { display: grid; gap: .85rem; }
.grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.category-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.catalog-section { background: var(--surface); }
.category-directory { padding: clamp(1.4rem, 3vw, 2.4rem); border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.97); box-shadow: var(--shadow-lg); }
.catalog-heading { max-width: 760px; margin: 0 auto 1.6rem; text-align: center; }
.catalog-heading .eyebrow { color: var(--brand-dark); }
.catalog-heading h2 { color: #10263a; }
.catalog-heading p:last-child { color: #637386; font-size: 1.08rem; }
.icon-category-grid { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: .8rem; }
.icon-category-card { position: relative; min-width: 0; min-height: 158px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .65rem; padding: .85rem .55rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); text-align: center; text-decoration: none; box-shadow: var(--shadow-sm); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.icon-category-card:hover { transform: translateY(-3px); border-color: #44d9b5; box-shadow: var(--shadow); color: var(--ink); }
.icon-category-card:focus-visible { border-color: #44d9b5; }
.cat-icon { width: 66px; height: 66px; overflow: visible; }
.cat-icon path, .cat-icon rect, .cat-icon circle { fill: var(--icon-fill); stroke: #16324a; stroke-width: 4.2; stroke-linecap: round; stroke-linejoin: round; }
.cat-icon path + path, .cat-icon rect + path, .cat-icon circle + path { fill: none; }
.icon-category-card strong { max-width: 100%; font-size: .98rem; line-height: 1.2; }
.cat-arrow { position: absolute; right: .7rem; top: .55rem; color: #7890a2; font-size: .85rem; opacity: 0; transform: translate(-3px,3px); transition: opacity .18s ease, transform .18s ease; }
.icon-category-card:hover .cat-arrow { opacity: 1; transform: translate(0,0); }
.icon-category-card.blue { --icon-fill:#78b9f4; }.icon-category-card.cyan { --icon-fill:#60d4df; }.icon-category-card.mint { --icon-fill:#55d6aa; }.icon-category-card.teal { --icon-fill:#7ee4cf; }.icon-category-card.coral { --icon-fill:#ff708d; }.icon-category-card.gold { --icon-fill:#ffc95c; }
.catalog-footer { display: flex; justify-content: space-between; align-items: center; gap: .85rem; margin-top: 1.15rem; padding-top: .9rem; border-top: 1px solid #e1e8ee; color: var(--muted); font-size: .86rem; }
.catalog-footer p { margin: 0; }.catalog-footer a { font-weight: 800; }
.reading-library { border-top: 1px solid #e0e7e2; }
.reading-feature { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 1.4rem; align-items: center; padding: clamp(1.25rem,3vw,2rem); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: linear-gradient(135deg, #e8f8f2 0%, var(--surface) 62%, #eef6ff 100%); box-shadow: var(--shadow); }
.reading-feature h3 { margin-top: .55rem; font-size: clamp(1.4rem,2.6vw,1.95rem); }
.reading-feature p { max-width: 760px; color: #4d625a; }
.reading-label { display: inline-flex; padding: .28rem .62rem; border-radius: 999px; background: #ccf1e5; color: #17604b; font-size: .72rem; font-weight: 850; letter-spacing: .06em; text-transform: uppercase; }
.reading-points { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin: .75rem 0 0; padding: 0; list-style: none; color: #344b43; font-size: .88rem; }
.reading-points li::before { content: "✓"; margin-right: .38rem; color: var(--brand-dark); font-weight: 900; }
.decision-record { overflow-x: auto; margin: .95rem 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.decision-record table { min-width: 770px; }
.decision-record th { background: #e8f2ed; color: #183d31; font-size: .76rem; font-weight: 850; text-transform: uppercase; letter-spacing: .04em; }
.decision-record th, .decision-record td { min-width: 110px; padding: .7rem; }
.status-chip { display: inline-flex; padding: .18rem .48rem; border-radius: 999px; background: #fff1c9; color: #77550b; font-size: .74rem; font-weight: 850; }
.session-timer { display: grid; grid-template-columns: repeat(3,1fr); gap: .7rem; margin: .95rem 0; }
.session-timer div { padding: .85rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.session-timer b { display: block; color: var(--green); font-size: 1.3rem; }
.scenario-card { border-left: 5px solid var(--green); }
.card { padding: 1.1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.card:hover { border-color: #a8dcd7; box-shadow: var(--shadow); }
.card .kicker { margin-bottom: .6rem; color: #006b70; font-size: .75rem; font-weight: 850; text-transform: uppercase; letter-spacing: .11em; }
.card p, .card li { color: #50605a; }
.card-link { display: inline-flex; margin-top: .45rem; font-weight: 800; }
.check-list, .plain-list { margin: .8rem 0; padding-left: 1.25rem; }
.check-list li, .plain-list li { margin: .35rem 0; }
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 2rem; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: .05rem; width: 1.3rem; height: 1.3rem; display: grid; place-items: center; border-radius: 50%; background: var(--mint); color: var(--green-dark); font-size: .78rem; font-weight: 900; }
.step { display: grid; grid-template-columns: 46px 1fr; gap: .8rem; }
.step-num { width: 42px; height: 42px; display: grid; place-items: center; border-radius: var(--radius-sm); background: var(--navy); color: white; font-weight: 850; }
.comparison { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
table { border-collapse: collapse; width: 100%; min-width: 620px; }
th, td { padding: .75rem .85rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #eef3ef; font-size: .85rem; }
tr:last-child td { border-bottom: 0; }
.score { display: inline-flex; min-width: 70px; justify-content: center; padding: .2rem .55rem; border-radius: 999px; background: var(--mint); color: var(--green-dark); font-weight: 850; }
.callout { padding: 1rem; border-radius: var(--radius); background: #fff6df; border: 1px solid #ead8a7; }
.note { padding: .85rem 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-soft); color: var(--ink-soft); }
.term-cloud { display: flex; flex-wrap: wrap; gap: .45rem; margin: .7rem 0 1.1rem; }
.term-cloud span { display: inline-flex; align-items: center; min-height: 34px; padding: .38rem .7rem; border: 1px solid #cddbd4; border-radius: 999px; background: #f3f8f5; color: #24463a; font-size: .86rem; font-weight: 750; }
.search-panel { padding: clamp(1.15rem, 3vw, 1.8rem); border-radius: var(--radius-lg); background: linear-gradient(145deg,var(--navy),var(--navy-deep)); color: white; box-shadow: var(--shadow); }
.search-form { display: flex; gap: .65rem; margin-top: 1rem; }
.search-form input { min-width: 0; flex: 1; min-height: 48px; padding: 0 1rem; border: 1px solid transparent; border-radius: var(--radius-sm); font: inherit; }
.search-panel .external-note { margin-top: .75rem; color: #c9d9d3; }
.search-form button { min-height: 48px; padding: 0 1rem; border: 0; border-radius: var(--pill); background: var(--accent); color: var(--navy-deep); font: inherit; font-weight: 850; cursor: pointer; }
.breadcrumbs { padding-top: .8rem; color: var(--muted); font-size: .84rem; }
.breadcrumbs a { color: var(--muted); }
.inner-hero { position: relative; overflow: hidden; padding: clamp(2.4rem, 5vw, 4rem) 0 2.6rem; border-bottom: 1px solid var(--line); background: var(--surface); color: var(--ink); }
.inner-hero::after { content: ""; position: absolute; width: 360px; height: 360px; right: -120px; top: -200px; border: 1px solid rgba(85,255,184,.25); border-radius: 50%; box-shadow: 0 0 0 65px rgba(85,255,184,.05), 0 0 0 130px rgba(85,255,184,.025); }
.inner-hero .wrap { position: relative; z-index: 1; }
.inner-hero .eyebrow { color: var(--brand-dark); }
.inner-hero .lede { color: var(--ink-soft); }
.reviewed { display: inline-flex; flex-wrap: wrap; gap: .22rem; max-width: 100%; margin: 0; padding: .32rem .66rem; border: 1px solid var(--line); border-radius: var(--pill); background: var(--surface-soft); color: var(--muted); font-size: .78rem; font-weight: 700; }
.reviewed a { color: inherit; font-weight: 850; text-underline-offset: .14em; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) var(--sidebar); gap: clamp(1.5rem, 2.5vw, 3.125rem); align-items: start; }
.prose { max-width: none; min-width: 0; }
.wrap.prose > :where(h2, h3, p, ul, ol, .callout, .note, details) { max-width: var(--reading); }
.prose h2 { margin-top: 1.9rem; color: #123f63; }
.prose h3 { margin-top: 1.35rem; }
.prose p, .prose li { color: #43524d; }
.side-nav { position: sticky; top: 5.6rem; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: #eaf3f7; box-shadow: var(--shadow-sm); }
.side-nav strong { display: block; margin-bottom: .5rem; }
.side-nav a { display: block; padding: .32rem 0; font-size: .9rem; }
details { padding: .8rem 0; border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 800; }
details p { margin: .8rem 0 0; color: #4d5c56; }
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 1.1rem; padding: clamp(1.25rem, 3vw, 1.9rem); border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: linear-gradient(135deg,var(--mint),#edf8ff); box-shadow: var(--shadow-sm); }
.cta-band h2 { font-size: clamp(1.35rem, 2.6vw, 1.8rem); }
.site-footer { padding: 2.2rem 0 1.25rem; background: var(--navy-deep); color: #dce8ed; }
.site-footer .brand { color: white; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 2fr; gap: 2rem; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem 1.2rem; }
.footer-links a { color: #dce8ed; text-decoration: none; }
.footer-links a:hover, .footer-links a[aria-current="page"] { color: var(--accent); }
.footer-trust { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.14); color: #aabdb5; font-size: .84rem; }
.narrow { max-width: none; }
.compact-table table { min-width: 0; }
.lead-statement { font-size: clamp(1.08rem, 2vw, 1.3rem); }
.muted { color: var(--muted); }
.small { font-size: .88rem; }

@media (max-width: 900px) {
  .header-inner { align-items: flex-start; padding: .65rem 0; }
  .nav { max-width: 540px; }
  .article-layout { grid-template-columns: 1fr; }
  .logistics-grid { grid-template-columns: 1fr; }
  .sky-visual { min-height: 340px; max-width: 620px; width: 100%; margin: -1rem auto 0; }
  .plane-illustration { width: 105%; right: -4%; }
  .category-grid, .grid.three { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .icon-category-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .side-nav { position: static; }
}
@media (max-width: 640px) {
  .wrap { width: min(calc(100% - 1.25rem), var(--max)); }
  .header-inner { display: block; overflow: hidden; }
  .brand { margin-bottom: .5rem; }
  .nav { width: 100%; justify-content: flex-start; flex-wrap: nowrap; gap: .2rem; overflow-x: auto; padding-bottom: .25rem; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { flex: 0 0 auto; padding: .42rem .58rem; font-size: .82rem; }
  .hero { padding-top: 2.4rem; }
  .logistics-hero { min-height: auto; padding-top: 2.4rem; }
  .logistics-copy h1 { font-size: clamp(1.95rem, 8.8vw, 2.35rem); }
  .hero-product-search { grid-template-columns: 1fr; gap: .7rem; }
  .search-capsule { height: 60px; }
  .source-badges span { width: 30px; height: 30px; }
  .source-badges span:nth-child(2) { display: none; }
  .hero-product-search button { min-height: 56px; width: 100%; }
  .sky-visual { display: none; }
  .route-orbit, .parcel { display: none; }
  .hero-process { grid-template-columns: repeat(3, minmax(0,1fr)); gap: .3rem; border-radius: var(--radius); padding: .6rem; font-size: .68rem; line-height: 1.35; }
  .hero-process b { display: grid; margin: 0 auto .3rem; }
  h1 { font-size: clamp(2.25rem, 11vw, 2.9rem); }
  .category-grid, .grid.two, .grid.three, .footer-grid { grid-template-columns: 1fr; }
  .reading-feature { grid-template-columns: 1fr; gap: 1rem; }
  .reading-feature .button { width: 100%; }
  .session-timer { grid-template-columns: 1fr; }
  .category-directory { padding: 1rem .75rem; border-radius: var(--radius-lg); }
  .catalog-heading { margin-bottom: 1.1rem; }
  .catalog-heading p:last-child { font-size: .94rem; }
  .icon-category-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: .6rem; }
  .icon-category-card { min-height: 128px; border-radius: var(--radius); gap: .45rem; }
  .cat-icon { width: 54px; height: 54px; }
  .icon-category-card strong { font-size: .88rem; }
  .cat-arrow { opacity: .72; transform: none; }
  .catalog-footer { align-items: flex-start; flex-direction: column; }
  .answer-box { grid-template-columns: 1fr; }
  .search-form, .cta-band { align-items: stretch; flex-direction: column; }
  .search-form button { padding-inline: .7rem; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }