:root {
  --orange: #ff6700;
  --orange-deep: #d95500;
  --orange-soft: #fff4ec;
  --orange-line: rgba(255, 103, 0, 0.24);
  --ink: #262626;
  --ink-2: #4f4f4f;
  --ink-3: #777;
  --black: #171717;
  --white: #fff;
  --gray: #f5f5f3;
  --gray-2: #ecece8;
  --line: #dfdfda;
  --success: #755a00;
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 18px 50px rgba(30, 30, 30, 0.08);
  --font: Inter, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--black);
  border-radius: 10px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(223, 223, 218, 0.9);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
}

.brand img {
  width: 166px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav > a,
.nav-group > button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 13px;
  color: var(--ink-2);
  background: transparent;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
}

.site-nav > a:hover,
.site-nav > a[aria-current="page"],
.nav-group > button:hover,
.nav-group > button[aria-expanded="true"] {
  color: var(--orange-deep);
  background: var(--orange-soft);
}

.nav-group {
  position: relative;
}

.nav-group > button::after {
  width: 7px;
  height: 7px;
  margin: -3px 0 0 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.nav-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  display: none;
  width: 280px;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.nav-group[data-open="true"] .nav-panel {
  display: grid;
}

.nav-panel a {
  display: grid;
  gap: 1px;
  padding: 10px 12px;
  border-radius: 12px;
}

.nav-panel a:hover,
.nav-panel a[aria-current="page"] {
  background: var(--orange-soft);
}

.nav-panel strong {
  font-size: 14px;
}

.nav-panel span {
  color: var(--ink-3);
  font-size: 12px;
  line-height: 1.45;
}

.header-cta {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 17px;
  color: var(--white);
  background: var(--black);
  border-radius: 12px;
  font-weight: 800;
}

.header-cta:hover {
  color: var(--white);
  background: var(--orange-deep);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.breadcrumb {
  padding: 20px 0 0;
  color: var(--ink-3);
  font-size: 13px;
}

.breadcrumb ol {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.breadcrumb li + li::before {
  margin-right: 8px;
  color: #aaa;
  content: "/";
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 80px;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: 34px;
  right: -130px;
  width: 460px;
  height: 460px;
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 103, 0, 0.22), transparent 53%),
    radial-gradient(circle at 65% 65%, rgba(23, 23, 23, 0.08), transparent 52%);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 56px;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--orange-deep);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 28px;
  height: 2px;
  background: var(--orange);
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 78px);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.page-hero h1 {
  max-width: 980px;
  font-size: clamp(40px, 5.4vw, 66px);
}

.hero .lead {
  max-width: 720px;
  margin-bottom: 30px;
  color: var(--ink-2);
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  color: var(--white);
  background: var(--orange);
  border: 1px solid var(--orange);
  border-radius: 14px;
  font-weight: 900;
}

.button:hover {
  background: var(--orange-deep);
  border-color: var(--orange-deep);
}

.button.secondary {
  color: var(--ink);
  background: var(--white);
  border-color: var(--line);
}

.button.secondary:hover {
  color: var(--orange-deep);
  background: var(--orange-soft);
  border-color: var(--orange-line);
}

.hero-visual {
  position: relative;
  display: flex;
  min-height: 430px;
  padding: 32px;
  flex-direction: column;
  color: var(--white);
  background: var(--black);
  border-radius: 34px;
  box-shadow: 0 30px 90px rgba(23, 23, 23, 0.2);
}

.hero-visual::after {
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle at 100% 0, rgba(255, 103, 0, 0.2), transparent 68%);
  content: "";
  pointer-events: none;
}

.visual-label {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  color: #eee;
  gap: 10px;
  font-size: 13px;
  font-weight: 900;
}

.visual-label::before {
  width: 24px;
  height: 2px;
  background: var(--orange);
  content: "";
}

.visual-label small {
  margin-left: auto;
  color: #888;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.visual-question {
  position: relative;
  z-index: 1;
  display: grid;
  margin: 34px 0 24px;
  gap: 7px;
}

.visual-question span {
  color: #aaa;
  font-size: 13px;
  font-weight: 800;
}

.visual-question strong {
  max-width: 410px;
  font-size: clamp(25px, 2.25vw, 31px);
  letter-spacing: -0.025em;
  line-height: 1.28;
}

.visual-flow {
  position: relative;
  z-index: 1;
  display: grid;
  margin-top: auto;
  gap: 9px;
}

.visual-step {
  display: grid;
  min-height: 56px;
  padding: 9px 14px 9px 10px;
  align-items: center;
  background: rgba(255, 255, 255, 0.065);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  gap: 12px;
  grid-template-columns: 34px minmax(0, 1fr);
}

.visual-step-index {
  display: grid;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--orange);
  border-radius: 9px;
  font-size: 11px;
  font-weight: 900;
  place-items: center;
}

.visual-step strong,
.visual-step small {
  display: block;
}

.visual-step strong {
  color: #f4f4f4;
  font-size: 14px;
  line-height: 1.35;
}

.visual-step small {
  margin-top: 1px;
  color: #aaa;
  font-size: 12px;
  line-height: 1.4;
}

.signal-strip {
  color: var(--white);
  background: var(--orange);
}

.signal-grid {
  display: grid;
  padding: 22px 0;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
}

.signal-grid div {
  border-right: 1px solid rgba(255, 255, 255, 0.35);
}

.signal-grid div:last-child {
  border-right: 0;
}

.signal-grid strong {
  display: block;
  font-size: 18px;
}

.signal-grid span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
}

.section {
  padding: 90px 0;
}

.section.compact {
  padding: 64px 0;
}

.section.alt {
  background: var(--gray);
}

.section.dark {
  color: var(--white);
  background: var(--black);
}

.section-head {
  display: grid;
  max-width: 800px;
  margin-bottom: 42px;
  gap: 10px;
}

.section-head.split {
  max-width: none;
  align-items: end;
  grid-template-columns: 1fr minmax(300px, 0.7fr);
}

.section-kicker {
  color: var(--orange-deep);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section.dark .section-kicker {
  color: #ff9d5e;
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -0.04em;
  line-height: 1.15;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.35;
}

.section-head p,
.muted {
  color: var(--ink-3);
}

.section.dark .section-head p,
.section.dark .muted {
  color: #aaa;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card p {
  color: var(--ink-2);
}

a.card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

a.card:hover {
  border-color: var(--orange-line);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card.dark-card {
  color: var(--white);
  background: #222;
  border-color: #333;
}

.card.dark-card p {
  color: #bbb;
}

.section.dark .card .muted {
  color: var(--ink-3);
}

.section.dark .card.dark-card .muted {
  color: #aaa;
}

.card .number,
.step-number {
  display: inline-flex;
  min-width: 42px;
  height: 42px;
  margin-bottom: 24px;
  align-items: center;
  justify-content: center;
  color: var(--orange-deep);
  background: var(--orange-soft);
  border-radius: 12px;
  font-size: 13px;
  font-weight: 900;
}

.card p:last-child {
  margin-bottom: 0;
}

.card-link {
  display: inline-flex;
  margin-top: 16px;
  color: var(--orange-deep);
  font-size: 14px;
  font-weight: 900;
}

.card-link::after {
  margin-left: 7px;
  content: "→";
}

.method-map {
  display: grid;
  align-items: stretch;
  gap: 16px;
  grid-template-columns: 1fr 64px 1fr 64px 1fr;
}

.method-node {
  padding: 28px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.method-node strong {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}

.method-node small {
  color: var(--orange-deep);
  font-weight: 900;
}

.method-arrow {
  display: grid;
  color: var(--orange);
  place-items: center;
  font-size: 30px;
}

.stage-path {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stage {
  position: relative;
  min-height: 240px;
  padding: 26px;
  color: var(--white);
  background: #242424;
  border-right: 1px solid #464646;
}

.stage:first-child {
  border-radius: var(--radius) 0 0 var(--radius);
}

.stage:last-child {
  border-right: 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.stage .stage-index {
  color: #ff9d5e;
  font-size: 12px;
  font-weight: 900;
}

.stage h3 {
  margin-top: 34px;
}

.stage p {
  color: #bbb;
  font-size: 14px;
}

.stage.internal::after {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 4px 8px;
  color: #f4d471;
  background: rgba(244, 212, 113, 0.12);
  border-radius: 999px;
  content: "系统自用";
  font-size: 11px;
  font-weight: 800;
}

.feature-list {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 12px;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 25px;
}

.feature-list li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--orange);
  border-radius: 2px;
  content: "";
  transform: translateY(-50%) rotate(45deg);
}

.comparison-table {
  width: 100%;
  overflow: hidden;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-collapse: separate;
  border-radius: var(--radius);
  border-spacing: 0;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.comparison-table th {
  background: var(--gray);
  font-size: 14px;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.comparison-table th:last-child,
.comparison-table td:last-child {
  border-right: 0;
}

.comparison-table td:first-child {
  font-weight: 900;
}

.quote {
  margin: 0;
  padding: 34px;
  color: var(--white);
  background: var(--black);
  border-left: 6px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: clamp(23px, 3vw, 34px);
  font-weight: 850;
  line-height: 1.45;
}

.article-meta {
  display: flex;
  margin-bottom: 24px;
  color: var(--ink-3);
  gap: 18px;
  font-size: 13px;
}

.article-layout {
  display: grid;
  align-items: start;
  gap: 58px;
  grid-template-columns: minmax(0, 1fr) 300px;
}

.article-body {
  max-width: 780px;
  font-size: 18px;
}

.article-body h2 {
  margin-top: 52px;
  font-size: 34px;
}

.article-body h3 {
  margin-top: 34px;
}

.article-body p,
.article-body ul,
.article-body ol {
  margin-bottom: 22px;
}

.article-body a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-aside {
  position: sticky;
  top: 100px;
  padding: 24px;
  color: var(--ink);
  background: var(--gray);
  border-radius: var(--radius);
}

.article-aside h2 {
  font-size: 20px;
}

.article-aside a {
  display: block;
  padding: 9px 0;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  font-weight: 700;
}

.article-aside a:last-child {
  border-bottom: 0;
}

.details-list {
  display: grid;
  gap: 12px;
}

.details-list details {
  padding: 0 22px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.details-list summary {
  padding: 20px 34px 20px 0;
  cursor: pointer;
  font-weight: 850;
  list-style: none;
}

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

.details-list summary::after {
  float: right;
  color: var(--orange);
  content: "+";
  font-size: 22px;
}

.details-list details[open] summary::after {
  content: "−";
}

.details-list details p {
  padding-bottom: 20px;
  color: var(--ink-2);
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 56px;
  color: var(--white);
  background: var(--orange);
  border-radius: 30px;
}

.cta-band::after {
  position: absolute;
  right: -60px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  border: 45px solid rgba(255, 255, 255, 0.14);
  border-radius: 60px;
  content: "";
  transform: rotate(18deg);
}

.cta-band h2 {
  max-width: 760px;
}

.cta-band p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.85);
}

.cta-band .button {
  color: var(--ink);
  background: var(--white);
  border-color: var(--white);
}

.site-footer {
  margin-top: 90px;
  padding: 64px 0 26px;
  color: #cfcfcf;
  background: var(--black);
}

.footer-grid {
  display: grid;
  padding-bottom: 46px;
  gap: 46px;
  grid-template-columns: minmax(280px, 1.4fr) repeat(3, minmax(150px, 0.6fr));
}

.footer-brand img {
  width: 180px;
  margin-bottom: 20px;
}

.footer-brand p {
  max-width: 380px;
  color: #9c9c9c;
}

.footer-col strong {
  display: block;
  margin-bottom: 12px;
  color: var(--white);
}

.footer-col a {
  display: block;
  padding: 5px 0;
  color: #aaa;
  font-size: 14px;
}

.footer-col a:hover {
  color: #ff9d5e;
}

.footer-bottom {
  display: flex;
  padding-top: 20px;
  align-items: center;
  justify-content: space-between;
  color: #777;
  border-top: 1px solid #333;
  font-size: 12px;
}

.notice {
  padding: 18px 20px;
  color: #5d4700;
  background: #fff9dc;
  border: 1px solid #ebd782;
  border-radius: 14px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  padding: 6px 10px;
  color: var(--ink-2);
  background: var(--gray);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.section-actions {
  display: flex;
  margin-top: 28px;
  justify-content: center;
}

.case-card {
  display: flex;
  min-height: 320px;
  flex-direction: column;
}

.case-card .tag {
  width: fit-content;
  margin-bottom: 22px;
  color: var(--orange-deep);
  background: var(--orange-soft);
  border-color: var(--orange-line);
}

.case-card-metric {
  display: flex;
  margin-bottom: 20px;
  align-items: baseline;
  gap: 12px;
}

.case-card-metric strong {
  color: var(--orange-deep);
  font-size: clamp(34px, 4vw, 52px);
  letter-spacing: -0.04em;
  line-height: 1;
}

.case-card-metric span,
.case-card-meta {
  color: var(--ink-3);
  font-size: 13px;
  font-weight: 800;
}

.case-card-meta {
  display: flex;
  margin-top: auto;
  padding-top: 20px;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.case-card .card-link {
  margin-top: 18px;
}

.comparison-chart {
  display: grid;
  padding: 32px;
  color: var(--ink);
  background: var(--white);
  border-radius: var(--radius);
  gap: 22px;
}

.comparison-row,
.trend-row {
  display: grid;
  align-items: center;
  gap: 18px;
  grid-template-columns: 150px minmax(180px, 1fr) 62px;
}

.comparison-row > span,
.trend-label {
  font-weight: 850;
}

.comparison-row strong,
.trend-row strong {
  color: var(--orange-deep);
  text-align: right;
}

.comparison-track,
.trend-track {
  position: relative;
  overflow: hidden;
  height: 16px;
  background: var(--gray-2);
  border-radius: 999px;
}

.comparison-track span,
.trend-fill {
  display: block;
  width: var(--value);
  height: 100%;
  background: linear-gradient(90deg, var(--orange-deep), var(--orange));
  border-radius: inherit;
}

.case-intro {
  display: grid;
  padding: 34px;
  align-items: end;
  color: var(--white);
  background: var(--black);
  border-radius: var(--radius);
  gap: 34px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
}

.case-intro strong {
  display: block;
  margin: 4px 0 10px;
  color: #ff9d5e;
  font-size: clamp(48px, 8vw, 84px);
  letter-spacing: -0.055em;
  line-height: 1;
}

.case-intro p {
  margin-bottom: 0;
  color: #c8c8c8;
}

.metric-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
  min-height: 220px;
  padding: 26px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.metric-card > strong {
  display: block;
  margin-bottom: 30px;
  color: var(--orange-deep);
  font-size: clamp(34px, 4vw, 50px);
  letter-spacing: -0.045em;
  line-height: 1;
}

.metric-card h3 {
  font-size: 18px;
}

.metric-card p {
  margin-bottom: 0;
  color: var(--ink-3);
  font-size: 13px;
}

.trend-chart {
  display: grid;
  padding: 32px;
  background: var(--gray);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  gap: 24px;
}

.article-card .tag {
  margin-bottom: 18px;
  color: var(--orange-deep);
  background: var(--orange-soft);
  border-color: var(--orange-line);
}

.sitemap-group ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sitemap-group a {
  display: block;
  padding: 8px 0;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
}

.sitemap-group a:hover {
  color: var(--orange-deep);
}

@media (max-width: 1040px) {
  .site-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav[data-mobile-open="true"] {
    position: fixed;
    top: 72px;
    right: 0;
    bottom: 0;
    left: 0;
    display: block;
    overflow-y: auto;
    padding: 20px;
    background: var(--white);
  }

  .site-nav[data-mobile-open="true"] > a,
  .site-nav[data-mobile-open="true"] .nav-group > button {
    width: 100%;
    min-height: 52px;
    justify-content: space-between;
    font-size: 17px;
  }

  .site-nav[data-mobile-open="true"] .nav-panel {
    position: static;
    width: 100%;
    margin: 4px 0 12px;
    box-shadow: none;
  }

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

  .hero-visual {
    min-height: 360px;
  }

  .grid.four {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-intro {
    grid-template-columns: 1fr;
  }

  .method-map {
    grid-template-columns: 1fr;
  }

  .method-arrow {
    height: 36px;
    transform: rotate(90deg);
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-aside {
    position: static;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(calc(100% - 28px), var(--max));
  }

  .visual-label small {
    display: none;
  }

  .brand img {
    width: 145px;
  }

  .hero {
    padding: 58px 0 54px;
  }

  h1 {
    font-size: clamp(40px, 13vw, 56px);
  }

  .page-hero h1 {
    font-size: clamp(36px, 11vw, 50px);
  }

  .section {
    padding: 68px 0;
  }

  .section-head.split,
  .grid.two,
  .grid.three,
  .grid.four,
  .metric-grid,
  .signal-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .comparison-chart,
  .trend-chart {
    padding: 24px 20px;
  }

  .comparison-row,
  .trend-row {
    gap: 10px;
    grid-template-columns: 1fr 56px;
  }

  .comparison-row > span,
  .trend-label {
    grid-column: 1 / -1;
  }

  .case-card-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .signal-grid div {
    padding-bottom: 14px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }

  .signal-grid div:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .stage-path {
    grid-template-columns: 1fr;
  }

  .stage {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid #464646;
  }

  .stage:first-child {
    border-radius: var(--radius) var(--radius) 0 0;
  }

  .stage:last-child {
    border-bottom: 0;
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .comparison-table {
    display: block;
    overflow-x: auto;
    border-radius: 14px;
  }

  .cta-band {
    padding: 36px 26px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .hero-actions,
  .breadcrumb {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  .section,
  .hero {
    padding: 28px 0;
  }
}