:root {
  --navy: #071d49;
  --navy-2: #0d2c5d;
  --teal: #007f82;
  --teal-soft: #e8f5f4;
  --orange: #e85c18;
  --orange-soft: #fff1e9;
  --purple: #6750a4;
  --green: #27835a;
  --ink: #182238;
  --muted: #657086;
  --line: #dbe3ea;
  --panel: #f7f9fb;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(7,29,73,.10);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.shell { width: min(1180px, calc(100% - 44px)); margin: 0 auto; }
.hero.shell { width: min(1280px, calc(100% - 44px)); }

.site-header {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(7,29,73,.08);
}
.brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { color: var(--navy); font-weight: 800; letter-spacing: .01em; }
.brand-affiliation { color: var(--muted); font-size: .76rem; margin-top: 3px; }
.top-nav { display: flex; gap: 22px; font-size: .86rem; font-weight: 700; color: var(--navy-2); }
.top-nav a { text-decoration: none; border-bottom: 2px solid transparent; padding: 8px 0; }
.top-nav a:hover { border-color: var(--teal); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(500px, .92fr);
  gap: clamp(44px, 4.2vw, 62px);
  align-items: center;
  padding: 64px 0 78px;
}
.hero-copy { min-width: 0; }
.eyebrow {
  color: var(--teal);
  margin: 0 0 10px;
  text-transform: uppercase;
  font-size: .74rem;
  font-weight: 900;
  letter-spacing: .14em;
}
.hero h1 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: clamp(3rem, 3.42vw, 3.5rem);
  line-height: .94;
  letter-spacing: -.043em;
  max-width: 690px;
}
.hero-line { display: block; white-space: nowrap; }
.hero-line-accent { color: #16325e; }
.hero-deck { max-width: 660px; font-size: 1.14rem; color: #4b5670; margin: 23px 0 0; line-height: 1.48; }
.paper-title { max-width: 660px; font-family: var(--serif); color: var(--navy); font-weight: 700; margin: 22px 0 0; line-height: 1.35; }
.publication-placeholders { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 660px; margin-top: 24px; }
.publication-placeholder { min-height: 72px; border: 1px solid var(--line); border-radius: 11px; background: #fbfcfd; display: flex; align-items: center; gap: 12px; padding: 13px 15px; color: var(--navy); }
.publication-placeholder > span:last-child { min-width: 0; display: flex; flex-direction: column; }
.publication-placeholder b { font-size: .78rem; line-height: 1.15; }
.publication-placeholder small { color: var(--muted); font-size: .67rem; margin-top: 5px; line-height: 1.25; }
.placeholder-icon { width: 34px; height: 34px; flex: 0 0 34px; border-radius: 50%; display: grid; place-items: center; border: 1px solid #b7cad6; color: var(--teal); background: white; font-weight: 900; }
.doi-icon { font-size: .63rem; text-transform: lowercase; letter-spacing: -.03em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.button {
  min-height: 47px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--teal);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  text-decoration: none;
  cursor: pointer;
  font-weight: 800;
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.button::after {
  content: "";
  position: absolute;
  top: -70%;
  left: -35%;
  width: 30%;
  height: 240%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.34), transparent);
  transform: rotate(18deg) translateX(-220%);
  transition: transform .55s ease;
  pointer-events: none;
}
.button:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(7,29,73,.12); }
.button:hover::after { transform: rotate(18deg) translateX(620%); }
.button:active { transform: translateY(0) scale(.985); box-shadow: 0 4px 12px rgba(7,29,73,.08); }
.button-primary { background: var(--navy); color: white; border-color: var(--navy); }
.button-secondary:hover { border-color: #0a9a9e; background: #fbffff; }
.button-tertiary { border-color: #cbd6df; color: #526177; background: #fbfcfd; }
.button-tertiary:hover { border-color: #aabac7; background: #f7f9fb; color: var(--navy); }
.button-icon { font-size: 1.1rem; transition: transform .22s ease; }
.button:hover .button-icon { transform: translateY(-1px) scale(1.12); }
.button[href="#finding"]:hover .button-icon { transform: translate(2px,-2px) scale(1.08); }

.journal-showcase {
  width: 100%;
  border: 1px solid #d7dee6;
  border-radius: 18px;
  background: linear-gradient(145deg, #fff 0%, #fff 64%, #fbf7f5 100%);
  box-shadow: 0 22px 62px rgba(7,29,73,.12);
  overflow: hidden;
  transform: perspective(1200px) rotateX(0deg) rotateY(0deg) translateY(0);
  transform-style: preserve-3d;
  transition: transform .28s ease, box-shadow .28s ease;
  will-change: transform;
}
.journal-showcase:hover { box-shadow: 0 30px 76px rgba(7,29,73,.16); }
.journal-topline { min-height: 58px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; border-bottom: 1px solid #e6eaef; background: rgba(249,247,247,.75); }
.journal-publisher { font-family: var(--serif); color: #191919; font-size: 1.42rem; letter-spacing: .06em; font-weight: 700; }
.journal-status { color: #0d7081; font-size: .72rem; font-weight: 800; display: inline-flex; align-items: center; gap: 7px; }
.journal-status span { font-size: .56rem; color: #11a6b5; }
.journal-layout { display: grid; grid-template-columns: 168px minmax(0, 1fr); gap: 22px; padding: 26px; align-items: stretch; }
.journal-cover { min-height: 310px; border-radius: 3px; background: #ef4b17; color: #fff; padding: 17px 14px 14px; display: flex; flex-direction: column; position: relative; box-shadow: 0 13px 28px rgba(151,55,21,.2); }
.cover-brand { font-size: .52rem; letter-spacing: .16em; font-weight: 800; opacity: .95; }
.cover-kicker { font-family: var(--serif); text-align: center; font-size: 1.24rem; margin-top: 4px; font-weight: 800; }
.cover-title { font-family: var(--serif); font-weight: 800; text-align: center; font-size: 1.22rem; line-height: .93; letter-spacing: -.03em; margin-top: 0; }
.cover-subtitle { text-align: center; font-family: var(--serif); font-size: .43rem; line-height: 1.25; margin: 8px 0 10px; }
.cover-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-top: auto; padding: 0 5px 18px; }
.cover-grid span { height: 15px; border: 1px solid rgba(255,255,255,.88); }
.cover-grid:after { content: "WILEY"; position: absolute; right: 13px; bottom: 8px; font-family: var(--serif); font-size: .48rem; letter-spacing: .04em; }
.journal-article { min-width: 0; align-self: center; }
.article-type { color: #4f5662; text-transform: uppercase; letter-spacing: .1em; font-size: .6rem; font-weight: 800; margin-bottom: 10px; }
.journal-article h2 { margin: 0; color: #252a30; font-size: clamp(1.25rem, 1.75vw, 1.7rem); line-height: 1.16; letter-spacing: -.025em; font-family: var(--sans); font-weight: 760; }
.article-authors { margin: 16px 0 0; color: #176cbb; font-size: .86rem; font-weight: 700; }
.article-authors span { color: #9aa4b2; margin: 0 7px; }
.article-affiliation { color: #616b79; font-size: .72rem; margin: 5px 0 0; }
.article-journal-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; margin-top: 25px; padding: 20px 0 8px; border-top: 1px solid #e3e7ec; }
.article-journal-row > div:first-child { grid-column: 1 / -1; }
.article-journal-row > div { min-width: 0; }
.article-journal-row small { display: block; color: #7b8593; font-size: .58rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 800; }
.article-journal-row strong { display: block; color: #28323e; font-size: .72rem; margin-top: 4px; line-height: 1.25; overflow-wrap: anywhere; }

.top-nav a { transition: color .2s ease, border-color .2s ease, transform .2s ease; }
.top-nav a:hover { transform: translateY(-1px); }

.scenario,
.stat-card,
.implication-card,
.operating-hub,
.taxbase-node {
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.scenario:hover,
.stat-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(7,29,73,.08); }
.scenario:hover .scenario-icon { transform: rotate(-5deg) scale(1.05); }
.scenario-icon { transition: transform .22s ease; }
.implication-card:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(7,29,73,.07); }
.operating-hub:hover, .taxbase-node:hover { transform: translateY(-3px); }

.finding-section,
.evidence-section,
.policy-section,
.relevance-section {
  border-top: 1px solid var(--line);
  padding: 74px 0;
}
.section-heading { text-align: center; max-width: 780px; margin: 0 auto 38px; }
.section-heading h2, .story-card h2 {
  color: var(--navy);
  font-family: var(--serif);
  letter-spacing: -.025em;
}
.section-heading h2 { font-size: clamp(2rem, 3.3vw, 3rem); margin: 5px 0 8px; }
.section-heading p:not(.eyebrow) { margin: 8px auto 0; color: var(--muted); font-size: 1.02rem; }

.coefficient-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 35px clamp(18px, 4vw, 52px);
  background: linear-gradient(180deg, #fff, #fbfcfe);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.coefficient-block { text-align: center; }
.coefficient-block strong {
  display: block;
  color: var(--orange);
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -.04em;
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: 1;
}
.coefficient-block span { display: block; color: var(--navy-2); font-weight: 800; margin-top: 11px; font-size: .91rem; }
.coefficient-block.net strong { color: #dc4a0a; }
.flow-arrow { color: #8b94a4; font-size: clamp(2rem, 3.8vw, 3.7rem); font-weight: 300; }
.finding-copy { max-width: 800px; text-align: center; margin: 27px auto 0; color: #3c4860; font-size: 1.04rem; }
.definition-chip {
  width: fit-content;
  max-width: 100%;
  margin: 22px auto 0;
  padding: 9px 15px;
  border: 1px solid #b7dcd9;
  border-radius: 7px;
  background: var(--teal-soft);
  color: #075f62;
  font-size: .88rem;
  font-weight: 800;
}

.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-bottom: 74px; }
.story-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 34px;
  background: white;
  min-height: 430px;
  box-shadow: 0 10px 30px rgba(7,29,73,.035);
}
.card-kicker { color: var(--teal); text-transform: uppercase; letter-spacing: .09em; font-size: .68rem; font-weight: 900; }
.story-card h2 { font-size: 2rem; margin: 5px 0 8px; }
.story-card > p { margin: 0; color: var(--muted); }
.geo-content { display: grid; grid-template-columns: .9fr 1.1fr; align-items: end; gap: 20px; margin-top: 37px; }
.geo-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.geo-stats > div { padding-right: 12px; border-right: 1px dotted #afbac8; }
.geo-stats > div:last-child { border-right: 0; }
.geo-stats strong { display: block; font-family: var(--serif); font-size: 2.2rem; color: var(--teal); line-height: 1; }
.geo-stats span { display: block; margin-top: 10px; color: var(--navy-2); font-size: .73rem; font-weight: 750; line-height: 1.35; }
.network-map svg { width: 100%; display: block; }
.map-land { fill: #edf2f4; stroke: #dce5e8; stroke-width: 2; }
.map-lines line { stroke: #64b6b5; stroke-width: 2; stroke-dasharray: 5 5; }
.map-nodes circle { fill: #179295; stroke: white; stroke-width: 3; }

.margin-diagram { display: grid; grid-template-columns: 124px 22px 160px 1fr; align-items: center; gap: 12px; margin-top: 38px; }
.pressure-node { height: 142px; display: grid; place-content: center; text-align: center; padding: 15px; border-radius: 12px; border: 1px solid var(--line); background: #fbfcfd; color: var(--navy); font-size: .76rem; }
.node-icon { font-size: 2.4rem; color: var(--teal); line-height: 1; margin-bottom: 8px; }
.branch-lines { position: relative; height: 112px; border-left: 1px dashed #9aaabd; }
.branch-lines:before, .branch-lines:after { content: ""; position: absolute; left: 0; width: 22px; border-top: 1px dashed #9aaabd; }
.branch-lines:before { top: 16px; transform: rotate(-28deg); transform-origin: left; }
.branch-lines:after { bottom: 16px; transform: rotate(28deg); transform-origin: left; }
.margin-stack { display: grid; gap: 14px; }
.margin-node { min-height: 62px; border-radius: 9px; display: flex; align-items: center; gap: 9px; padding: 10px 13px; font-size: .76rem; font-weight: 850; }
.margin-node span { font-size: 1.2rem; }
.operating { background: var(--teal-soft); border: 1px solid #8cc8c6; color: #075f62; }
.internal { background: var(--orange-soft); border: 1px solid #f4a077; color: #a63d0b; }
.before-after { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.bar-panel { display: grid; gap: 11px; }
.bar-panel b { font-size: .67rem; color: var(--navy); text-align: center; }
.track { height: 23px; background: #edf1f4; border-radius: 4px; overflow: hidden; }
.track span { display: block; height: 100%; border-radius: 3px; }
.teal-bar { background: var(--teal); }.orange-bar { background: var(--orange); }
.wide { width: 86%; }.narrow { width: 17%; }
.diagram-caption { margin-top: 24px !important; font-size: .82rem; text-align: center; }

.stat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.stat-card { min-height: 130px; border: 1px solid var(--line); border-radius: 13px; display: grid; grid-template-columns: auto 1fr; grid-template-rows: 1fr 1fr; align-items: center; column-gap: 13px; padding: 20px; background: white; box-shadow: 0 8px 25px rgba(7,29,73,.035); }
.stat-icon { grid-row: 1 / 3; color: var(--teal); font-weight: 900; font-size: 1.4rem; }
.stat-card strong { color: var(--navy); align-self: end; font-family: var(--serif); font-size: 1.65rem; line-height: 1; }
.stat-card small { color: var(--muted); align-self: start; margin-top: 7px; }
.source-line { text-align: center; color: var(--muted); font-size: .8rem; margin: 23px 0; }
.source-line span { margin: 0 8px; color: #9aa6b5; }
.robustness { border: 1px solid #cbd7e0; border-radius: 10px; background: #f9fbfc; overflow: hidden; }
.robustness summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; padding: 17px 20px; color: var(--navy); font-size: .88rem; }
.robustness summary::-webkit-details-marker { display: none; }
.robustness summary b { margin-right: 8px; color: var(--teal); }
.robustness[open] .chevron { transform: rotate(180deg); }
.chevron { transition: transform .2s ease; }
.robustness-body { border-top: 1px solid var(--line); padding: 18px; display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; }
.robust-card { background: white; border: 1px solid var(--line); border-radius: 9px; padding: 15px; }
.robust-card strong { display: block; color: var(--navy); font-family: var(--serif); font-size: 1.4rem; }
.robust-card span { display: block; color: var(--muted); font-size: .7rem; margin-top: 7px; }

.scenario-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.scenario { min-height: 140px; padding: 20px 18px; display: grid; grid-template-columns: auto 1fr; grid-template-rows: 1fr 1.2fr; border-radius: 13px; border: 1px solid var(--line); background: white; }
.scenario-icon { grid-row: 1 / 3; align-self: center; display: grid; place-items: center; width: 46px; height: 46px; border: 2px solid currentColor; border-radius: 50%; margin-right: 14px; font-weight: 800; font-size: 1.25rem; }
.scenario b { align-self: end; font-size: .76rem; }
.scenario strong { align-self: start; font-family: var(--serif); font-size: 2rem; line-height: 1; margin-top: 7px; }
.revenue { color: var(--orange); background: #fffaf7; border-color: #f7c4a9; }
.balanced { color: var(--teal); background: #f7fcfc; border-color: #a9d9d7; }
.growth { color: var(--green); background: #f8fcf9; border-color: #b5dcc8; }
.trade { color: var(--purple); background: #faf9fd; border-color: #ccc4e8; }
.scenario-note { text-align: center; color: var(--orange); font-weight: 800; font-size: .78rem; margin: 19px 0 0; }

.relevance-section { padding-bottom: 58px; }
.relevance-section .section-heading { max-width: 900px; margin-bottom: 34px; }
.mechanism-canvas {
  position: relative;
  min-height: 395px;
  margin-top: 8px;
  padding: 0;
  border: 1px solid #d7e0e8;
  border-radius: 18px;
  background:
    radial-gradient(circle at 41% 44%, rgba(0,127,130,.045), transparent 28%),
    linear-gradient(180deg, #fff 0%, #fbfcfd 100%);
  box-shadow: 0 8px 26px rgba(7,29,73,.035);
  overflow: hidden;
}
.mechanism-canvas::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 73%;
  width: 27%;
  background: linear-gradient(90deg, rgba(103,80,164,0), rgba(103,80,164,.035));
  pointer-events: none;
}
.mechanism-links {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  color: #9aabb9;
  pointer-events: none;
}
.mechanism-links .link {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
  marker-end: url(#flowArrow);
}
.mechanism-links .link-branch { color: #6e889e; }
.mechanism-links .link-direct { color: #91a7b8; }
.mechanism-links .link-attenuation { color: #8b78bc; }
.mechanism-entry,
.operating-hub,
.taxbase-node,
.constraint-zone {
  position: absolute;
  z-index: 1;
}
.mechanism-entry {
  left: 3.2%;
  top: 101px;
  width: 168px;
}
.entry-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 50%;
  border: 1px solid #f29a6f;
  background: #fff8f4;
  color: var(--orange);
}
.entry-icon svg,
.hub-icon svg,
.taxbase-icon svg,
.constraint-icon svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mechanism-kicker {
  display: block;
  margin-bottom: 6px;
  font-size: .59rem;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.mechanism-entry .mechanism-kicker { color: #bd470f; }
.mechanism-entry h3,
.operating-hub h3,
.taxbase-node h3,
.constraint-zone h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  line-height: 1.18;
}
.mechanism-entry h3 { font-size: 1.1rem; }
.mechanism-entry p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: .72rem;
  line-height: 1.48;
}
.operating-hub {
  left: 22.5%;
  top: 44px;
  width: 31.5%;
  min-height: 244px;
  padding: 26px 28px 23px;
  border: 1px solid #9ccfce;
  border-radius: 20px;
  background: rgba(247,252,252,.96);
  box-shadow: 0 15px 38px rgba(7,29,73,.07);
}
.hub-topline {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 14px;
  align-items: center;
}
.hub-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: var(--teal);
  border: 1px solid #83c2c0;
  background: #fff;
}
.operating-hub .mechanism-kicker { color: var(--teal); }
.operating-hub h3 { font-size: 1.4rem; }
.hub-copy {
  margin: 17px 0 0;
  color: #536177;
  font-size: .78rem;
  line-height: 1.5;
}
.hub-branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin-top: 20px;
  padding-top: 14px;
}
.hub-branches::before {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  border-top: 1px solid #9fc9c8;
}
.hub-branches span {
  position: relative;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid #cce4e3;
  border-radius: 999px;
  background: #fff;
  color: #246f71;
  font-size: .67rem;
  font-weight: 850;
}
.hub-branches span::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -15px;
  height: 14px;
  border-left: 1px solid #9fc9c8;
}
.hub-branches i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal);
}
.hub-note {
  margin-top: 16px;
  color: #668084;
  font-size: .62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .07em;
}
.taxbase-node {
  left: 59%;
  top: 144px;
  width: 19%;
  min-height: 156px;
  padding: 20px 21px 18px;
  border: 1px solid #b7c7d9;
  border-radius: 14px;
  background: rgba(248,250,253,.97);
}
.taxbase-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  margin-bottom: 13px;
  border-radius: 10px;
  border: 1px solid #9fb3cc;
  background: #fff;
  color: var(--navy-2);
}
.taxbase-node .mechanism-kicker { color: var(--navy-2); }
.taxbase-node h3 { font-size: 1.05rem; }
.taxbase-node p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: .7rem;
  line-height: 1.48;
}
.taxbase-tag {
  width: fit-content;
  margin-top: 12px;
  padding: 5px 8px;
  border-radius: 999px;
  background: #edf3f9;
  color: #536b88;
  font-size: .57rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.constraint-zone {
  right: 3.2%;
  top: 64px;
  width: 14.5%;
  color: var(--purple);
}
.constraint-content {
  position: relative;
  z-index: 2;
  padding-left: 24px;
}
.constraint-icon {
  width: 37px;
  height: 37px;
  display: grid;
  place-items: center;
  margin-bottom: 12px;
  border-radius: 9px;
  border: 1px solid #b8a8df;
  background: white;
}
.constraint-zone .mechanism-kicker { color: #66509c; }
.constraint-zone h3 { font-size: 1rem; }
.constraint-zone p {
  margin: 8px 0 0;
  color: #6d6880;
  font-size: .68rem;
  line-height: 1.45;
}
.constraint-zone strong {
  display: block;
  margin-top: 13px;
  padding-top: 8px;
  border-top: 1px solid rgba(103,80,164,.18);
  color: #66509c;
  font-size: .61rem;
  text-transform: uppercase;
  letter-spacing: .07em;
}
.implications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.implication-card {
  min-height: 238px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 20px 21px;
  background: #fff;
}
.implication-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 15px;
  border-radius: 11px;
  border: 1px solid currentColor;
  background: #fff;
}
.implication-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.implication-label {
  display: block;
  font-size: .63rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .085em;
  margin-bottom: 9px;
}
.trade-policy-card .implication-label, .trade-policy-card .implication-icon { color: #ad3d0d; }
.tax-reform-card .implication-label, .tax-reform-card .implication-icon { color: #09696b; }
.organization-card .implication-label, .organization-card .implication-icon { color: var(--navy-2); }
.industrial-card .implication-label, .industrial-card .implication-icon { color: #5d4396; }
.trade-policy-card .implication-icon { background: var(--orange-soft); }
.tax-reform-card .implication-icon { background: var(--teal-soft); }
.organization-card .implication-icon { background: #eef3f9; }
.industrial-card .implication-icon { background: #f4f1fa; }
.implication-card h3 {
  margin: 0;
  color: var(--navy);
  font-family: var(--serif);
  font-size: 1.01rem;
  line-height: 1.3;
}
.implication-card p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.52;
}
.minimal-signoff {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  padding: 22px 0 28px;
  border-top: 1px solid var(--line);
  color: #7a8593;
  font-size: .7rem;
  text-align: center;
}

.poster-modal { max-width: min(94vw, 1180px); width: fit-content; border: 0; padding: 0; border-radius: 14px; box-shadow: 0 25px 70px rgba(0,0,0,.28); background: white; overflow: visible; }
.poster-modal::backdrop { background: rgba(3,13,34,.82); backdrop-filter: blur(4px); }
.poster-modal img { display: block; max-width: 92vw; max-height: 90vh; border-radius: 12px; }
.modal-close { position: absolute; top: -17px; right: -17px; width: 38px; height: 38px; border-radius: 50%; border: 2px solid white; background: var(--navy); color: white; font-size: 1.5rem; cursor: pointer; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%,20px); background: var(--navy); color: white; border-radius: 999px; padding: 9px 16px; font-size: .76rem; font-weight: 800; opacity: 0; pointer-events: none; transition: .2s ease; }
.toast.show { opacity: 1; transform: translate(-50%,0); }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .62s ease, transform .62s cubic-bezier(.2,.72,.25,1); transition-delay: var(--reveal-delay, 0ms); }
.reveal.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .button, .button-icon, .journal-showcase, .scenario, .stat-card, .implication-card, .operating-hub, .taxbase-node, .scenario-icon { transition: none !important; }
  .button::after { display: none; }
}

@media (max-width: 1080px) {
  .hero.shell { width: min(1180px, calc(100% - 44px)); }
  .hero {
    grid-template-columns: minmax(0, .95fr) minmax(460px, 1.05fr);
    gap: 40px;
  }
  .hero h1 { font-size: clamp(2.9rem, 4.1vw, 3.8rem); }
  .journal-layout { grid-template-columns: 160px minmax(0,1fr); gap: 20px; padding: 24px; }
  .journal-cover { min-height: 292px; }
}

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding-top: 52px; }
  .hero h1 { max-width: 760px; }
  .hero-line { white-space: normal; }
  .journal-showcase { max-width: 760px; margin: 0 auto; }
  .story-grid { grid-template-columns: 1fr; }
  .story-card { min-height: 0; }
  .stat-grid, .scenario-grid { grid-template-columns: 1fr 1fr; }
  .robustness-body { grid-template-columns: 1fr 1fr; }
  .margin-diagram { grid-template-columns: 110px 20px 145px 1fr; }
  .mechanism-canvas {
    min-height: 0;
    padding: 28px 34px;
    display: grid;
    gap: 30px;
  }
  .mechanism-links { display: none; }
  .mechanism-entry,
  .operating-hub,
  .taxbase-node,
  .constraint-zone {
    position: relative;
    inset: auto;
    width: auto;
    min-height: 0;
  }
  .mechanism-entry { padding: 10px 18px 4px; }
  .operating-hub { padding: 24px 26px; }
  .taxbase-node { padding: 20px 22px; }
  .constraint-zone { padding: 4px 22px 8px; }
  .constraint-content { position: relative; inset: auto; padding: 0; }
  .mechanism-entry::after,
  .operating-hub::after,
  .taxbase-node::after {
    content: "↓";
    position: absolute;
    left: 50%;
    bottom: -28px;
    z-index: 4;
    transform: translateX(-50%);
    color: #8193a4;
    font-size: 1.35rem;
    line-height: 1;
    font-weight: 500;
  }
  .implications-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .shell, .site-header { width: min(100% - 26px, 1180px); }
  .site-header { min-height: 64px; }
  .top-nav { display: none; }
  .hero { padding: 42px 0 60px; gap: 40px; }
  .hero h1 { font-size: clamp(2.55rem, 12vw, 4rem); }
  .hero-line { white-space: normal; }
  .hero-deck { font-size: 1.05rem; }
  .publication-placeholders { grid-template-columns: 1fr; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .finding-section, .evidence-section, .policy-section, .relevance-section { padding: 58px 0; }
  .coefficient-flow { grid-template-columns: 1fr; gap: 8px; }
  .flow-arrow { transform: rotate(90deg); line-height: .7; margin: 4px auto; }
  .coefficient-block strong { font-size: 3.4rem; }
  .story-grid { padding-bottom: 58px; }
  .story-card { padding: 25px 20px; }
  .geo-content { grid-template-columns: 1fr; }
  .network-map { max-width: 360px; margin: 0 auto; }
  .margin-diagram { grid-template-columns: 1fr; }
  .branch-lines { display: none; }
  .pressure-node { height: auto; min-height: 90px; }
  .margin-stack, .before-after { grid-template-columns: 1fr 1fr; }
  .stat-grid, .scenario-grid, .robustness-body { grid-template-columns: 1fr; }
  .mechanism-canvas {
    min-height: 0;
    padding: 22px 18px;
    display: grid;
    gap: 14px;
  }
  .mechanism-canvas::after {
    content: "";
    position: absolute;
    left: 39px;
    top: 64px;
    bottom: 66px;
    border-left: 1px solid #b8c6d3;
  }
  .mechanism-entry, .operating-hub, .taxbase-node, .constraint-zone {
    position: relative;
    inset: auto;
    width: auto;
    min-height: 0;
    z-index: 1;
  }
  .mechanism-entry::after,
  .operating-hub::after,
  .taxbase-node::after { display: none; }
  .mechanism-entry { padding: 8px 8px 12px 58px; }
  .entry-icon { position: absolute; left: -1px; top: 7px; width: 44px; height: 44px; background: white; }
  .operating-hub { padding: 22px; margin-left: 20px; }
  .hub-branches { grid-template-columns: 1fr; }
  .hub-branches::before, .hub-branches span::before { display: none; }
  .taxbase-node { margin-left: 44px; }
  .constraint-zone { margin-left: 60px; padding: 8px 18px 12px; }
  .constraint-content { position: relative; inset: auto; padding: 0; }
  .implications-grid { grid-template-columns: 1fr; }
  .implication-card { min-height: 0; }
  .journal-layout { grid-template-columns: 128px minmax(0,1fr); gap: 16px; padding: 18px; }
  .journal-cover { min-height: 245px; padding: 12px 10px; }
  .cover-title { font-size: .9rem; }
  .cover-subtitle { font-size: .34rem; }
  .cover-grid { gap: 3px; padding-bottom: 15px; }
  .cover-grid span { height: 10px; }
  .journal-article h2 { font-size: 1.08rem; }
  .article-journal-row { grid-template-columns: 1fr; }
  .minimal-signoff { width: min(100% - 26px, 1180px); }
}