:root {
  --dh-ink: #222222;
  --dh-black: #050505;
  --dh-paper: #ffffff;
  --dh-soft: #f0f0f0;
  --dh-warm: #f4f4f1;
  --dh-line: #aeaeae;
  --dh-line-soft: #d8d8d4;
  --dh-muted: #666666;
  --dh-muted-2: #8b8b8b;
  --dh-red: #e60012;
  --dh-gutter: 60px;
  --dh-nav: 58px;
  --dh-mono: "JetBrains Mono", Consolas, monospace;
  --dh-sans: "Inter", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --dh-display: "Noto Sans SC", "Inter", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--dh-black); }
body { margin: 0; background: var(--dh-paper); color: var(--dh-ink); font-family: var(--dh-sans); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
img, svg { display: block; }
::selection { background: var(--dh-ink); color: var(--dh-paper); }
:focus-visible { outline: 2px solid var(--dh-red); outline-offset: 4px; }
.dh-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.dh-skip { position: fixed; top: 10px; left: 10px; z-index: 3000; padding: 10px 14px; background: var(--dh-paper); color: var(--dh-ink); border: 1px solid var(--dh-line); transform: translateY(-160%); transition: transform .2s ease; }
.dh-skip:focus { transform: translateY(0); }
.dh-shell { width: 100%; max-width: 1560px; margin: 0 auto; padding: 0 var(--dh-gutter); }

.dh-nav { position: fixed; inset: 0 0 auto; z-index: 1000; height: var(--dh-nav); color: var(--dh-paper); border-bottom: 1px solid transparent; transition: background-color .25s ease, color .25s ease, border-color .25s ease; }
.dh-nav.is-scrolled { background: rgba(255,255,255,.97); color: var(--dh-ink); border-bottom-color: var(--dh-line-soft); }
.dh-nav__inner { width: 100%; max-width: 1560px; height: 100%; margin: 0 auto; padding: 0 var(--dh-gutter); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; }
.dh-brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; font-size: 13px; font-weight: 600; letter-spacing: .02em; }
.dh-brand__mark { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid currentColor; clip-path: polygon(0 0, 76% 0, 100% 24%, 100% 100%, 24% 100%, 0 76%); }
.dh-brand__mark svg { width: 17px; height: 17px; }
.dh-brand__sub { color: currentColor; opacity: .6; font-family: var(--dh-mono); font-size: 10px; letter-spacing: .1em; }
.dh-nav__menu { display: flex; align-items: center; gap: 28px; justify-self: center; }
.dh-nav__menu a { font-size: 13px; font-weight: 500; color: currentColor; opacity: .75; transition: opacity .2s ease; }
.dh-nav__menu a:hover { opacity: 1; }
.dh-nav__toggle { display: none; justify-self: end; width: 44px; height: 44px; padding: 10px; background: transparent; border: 1px solid currentColor; color: inherit; }
.dh-nav__toggle span { display: block; height: 1px; margin: 5px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
.dh-nav__toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.dh-nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.dh-nav__toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.dh-hero { min-height: 100vh; padding-top: var(--dh-nav); background: var(--dh-black); color: var(--dh-paper); }
.dh-hero__grid { min-height: calc(100vh - var(--dh-nav)); display: grid; grid-template-columns: minmax(0, 1.28fr) minmax(420px, .72fr); }
.dh-route { min-width: 0; display: grid; grid-template-rows: minmax(250px, 1fr) auto; }
.dh-route--new { background: var(--dh-black); border-right: 1px solid rgba(255,255,255,.22); }
.dh-route--upgrade { background: var(--dh-warm); color: var(--dh-ink); }
.dh-route__visual { min-height: 270px; padding: 18px; }
.dh-route__body { padding: 28px var(--dh-gutter) 54px; max-width: 820px; }
.dh-route h2 { margin: 14px 0 16px; font-family: var(--dh-display); font-size: clamp(54px, 5.6vw, 80px); line-height: .98; letter-spacing: -.055em; font-weight: 700; }
.dh-route p { max-width: 680px; margin: 0; color: currentColor; opacity: .68; font-size: 16px; line-height: 1.8; }
.dh-route__tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 30px; padding: 0; list-style: none; }
.dh-route__tags li { padding: 7px 10px; border: 1px solid currentColor; opacity: .72; font-family: var(--dh-mono); font-size: 11px; letter-spacing: .04em; }
.dh-kicker { display: inline-flex; align-items: center; gap: 10px; font-family: var(--dh-mono); font-size: 11px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--dh-muted); }
.dh-kicker::before { content: ""; width: 18px; height: 1px; background: var(--dh-red); }
.dh-route--new .dh-kicker, .dh-kicker--light { color: rgba(255,255,255,.62); }
.dh-slot { position: relative; width: 100%; height: 100%; min-height: 230px; display: flex; align-items: flex-end; justify-content: space-between; overflow: hidden; border: 1px solid var(--dh-line); background-color: #e8e8e8; background-image: linear-gradient(135deg, rgba(34,34,34,.12) 25%, transparent 25%, transparent 50%, rgba(34,34,34,.12) 50%, rgba(34,34,34,.12) 75%, transparent 75%); background-size: 24px 24px; }
.dh-slot::before { content: ""; position: absolute; inset: 12px; border: 1px solid currentColor; opacity: .26; pointer-events: none; }
.dh-slot--dark { color: var(--dh-paper); border-color: rgba(255,255,255,.28); background-color: #111; background-image: linear-gradient(135deg, rgba(255,255,255,.08) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.08) 50%, rgba(255,255,255,.08) 75%, transparent 75%); }
.dh-slot--dark::after { content: ""; position: absolute; width: 42%; height: 1px; left: 12px; top: 42%; background: var(--dh-red); box-shadow: 0 8px 0 rgba(255,255,255,.18), 0 16px 0 rgba(255,255,255,.12); transform: rotate(-7deg); transform-origin: left center; }
.dh-slot__index, .dh-slot__label, .dh-slot > span { position: relative; z-index: 1; padding: 12px 14px; font-family: var(--dh-mono); font-size: 10px; letter-spacing: .12em; }
.dh-slot__index { align-self: flex-start; }
.dh-slot__label { margin-left: auto; }
.dh-hero__meta { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.16); background: #0b0b0b; }
.dh-hero__meta span { min-height: 46px; display: flex; align-items: center; padding: 0 var(--dh-gutter); color: rgba(255,255,255,.62); font-family: var(--dh-mono); font-size: 10px; letter-spacing: .08em; border-right: 1px solid rgba(255,255,255,.16); }
.dh-hero__meta span:last-child { border-right: 0; }

.dh-btn { width: fit-content; min-height: 54px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; border: 1px solid transparent; clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); font-size: 14px; font-weight: 600; transition: background-color .25s ease, color .25s ease, border-color .25s ease; }
.dh-btn--light { background: var(--dh-paper); color: var(--dh-ink); }
.dh-btn--light:hover { background: var(--dh-red); color: var(--dh-paper); }
.dh-btn--dark { background: var(--dh-ink); color: var(--dh-paper); }
.dh-btn--dark:hover { background: var(--dh-red); }
.dh-btn--outline { background: transparent; color: var(--dh-paper); border-color: rgba(255,255,255,.45); }
.dh-btn--outline:hover { background: var(--dh-paper); color: var(--dh-ink); }

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

.dh-section { padding: 120px 0; background: var(--dh-paper); border-top: 1px solid var(--dh-line); }
.dh-section--soft { background: var(--dh-soft); }
.dh-section--dark, .dh-section--final { background: var(--dh-black); color: var(--dh-paper); border-color: rgba(255,255,255,.18); }
.dh-section-head { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 80px; align-items: end; margin-bottom: 64px; }
.dh-section-head h2 { margin: 18px 0 0; font-family: var(--dh-display); font-size: 45px; line-height: 1.18; letter-spacing: -.035em; font-weight: 600; }
.dh-section-head p { margin: 0; padding-top: 22px; border-top: 1px solid var(--dh-line); color: var(--dh-muted); font-size: 15px; line-height: 1.75; }
.dh-section--dark .dh-section-head p, .dh-section--final .dh-section-head p { color: rgba(255,255,255,.6); border-color: rgba(255,255,255,.24); }
.dh-note { margin: 22px 0 0; color: var(--dh-muted); font-family: var(--dh-mono); font-size: 11px; letter-spacing: .04em; }
.dh-section--dark .dh-note { color: rgba(255,255,255,.5); }
.dh-text-link, .dh-row-link { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; transition: color .2s ease; }
.dh-text-link:hover, .dh-row-link:hover { color: var(--dh-red); }

.dh-budget-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--dh-line); border-bottom: 1px solid var(--dh-line); }
.dh-budget-card { position: relative; min-height: 430px; padding: 34px 30px 30px; display: flex; flex-direction: column; border-right: 1px solid var(--dh-line); transition: background-color .25s ease; }
.dh-budget-card:last-child { border-right: 0; }
.dh-budget-card:hover { background: var(--dh-soft); }
.dh-card-index { font-family: var(--dh-mono); font-size: 11px; color: var(--dh-muted); }
.dh-budget { margin-top: 38px; font-family: var(--dh-display); font-size: 28px; line-height: 1.2; }
.dh-budget-card h3 { margin: 12px 0 34px; font-size: 20px; font-weight: 600; }
.dh-budget-card dl, .dh-use-card dl, .dh-case-card dl { margin: 0; }
.dh-budget-card dl { display: grid; gap: 14px; }
.dh-budget-card dl div, .dh-use-card dl div, .dh-case-card dl div { display: flex; justify-content: space-between; gap: 16px; padding-top: 10px; border-top: 1px solid var(--dh-line-soft); }
.dh-budget-card dt, .dh-use-card dt, .dh-case-card dt { color: var(--dh-muted); font-size: 12px; }
.dh-budget-card dd, .dh-use-card dd, .dh-case-card dd { margin: 0; text-align: right; font-size: 12px; font-weight: 500; }
.dh-budget-card .dh-text-link { margin-top: auto; padding-top: 36px; }

.dh-use-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--dh-line); border: 1px solid var(--dh-line); }
.dh-use-card { position: relative; min-height: 280px; padding: 36px; background: var(--dh-paper); transition: background-color .25s ease; }
.dh-use-card:hover { background: var(--dh-soft); }
.dh-use-index { font-family: var(--dh-mono); font-size: 11px; color: var(--dh-red); }
.dh-use-card h3 { margin: 24px 0 12px; font-size: 28px; line-height: 1.2; }
.dh-use-card p { max-width: 520px; margin: 0 0 30px; color: var(--dh-muted); font-size: 14px; line-height: 1.75; }
.dh-use-card dl { display: grid; gap: 10px; }

.dh-matrix-wrap { overflow-x: auto; border: 1px solid var(--dh-line); }
.dh-matrix { width: 100%; min-width: 760px; border-collapse: collapse; background: var(--dh-paper); }
.dh-matrix th, .dh-matrix td { padding: 22px 24px; border-right: 1px solid var(--dh-line); border-bottom: 1px solid var(--dh-line); text-align: left; font-size: 14px; font-weight: 400; }
.dh-matrix tr:last-child th, .dh-matrix tr:last-child td { border-bottom: 0; }
.dh-matrix th:last-child, .dh-matrix td:last-child { border-right: 0; }
.dh-matrix thead th { background: var(--dh-ink); color: var(--dh-paper); font-family: var(--dh-mono); font-size: 11px; letter-spacing: .12em; }
.dh-matrix tbody th { width: 180px; font-weight: 600; background: var(--dh-soft); }
.dh-level { display: inline-flex; align-items: center; gap: 8px; color: var(--dh-muted); }
.dh-level::before { content: ""; width: 7px; height: 7px; border: 1px solid currentColor; }
.dh-level--good { color: var(--dh-ink); font-weight: 600; }
.dh-level--good::before { background: var(--dh-ink); }
.dh-level--high { color: var(--dh-red); font-weight: 600; }
.dh-level--high::before { background: var(--dh-red); border-color: var(--dh-red); }
.dh-level--avoid { color: var(--dh-muted-2); text-decoration: line-through; }

.dh-combo-list { border-top: 1px solid var(--dh-line); }
.dh-combo-row { display: grid; grid-template-columns: minmax(250px, 1.4fr) .68fr .62fr .68fr .82fr 70px; gap: 20px; align-items: center; min-height: 102px; padding: 20px 0; border-bottom: 1px solid var(--dh-line); transition: background-color .2s ease, padding .2s ease; }
.dh-combo-row:hover { padding-left: 16px; padding-right: 16px; background: var(--dh-soft); }
.dh-combo-row > div span { display: block; font-size: 17px; font-weight: 600; }
.dh-combo-row small { display: block; margin-top: 6px; color: var(--dh-muted); font-size: 12px; }
.dh-combo-row > span { color: var(--dh-muted); font-size: 13px; }
.dh-row-link { justify-self: end; }

.dh-section--dark { border-top: 1px solid rgba(255,255,255,.18); }
.dh-upgrade { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .8fr); gap: 90px; align-items: end; }
.dh-upgrade h2, .dh-final h2 { margin: 18px 0 22px; font-family: var(--dh-display); font-size: clamp(46px, 5.2vw, 76px); line-height: 1.05; letter-spacing: -.05em; font-weight: 600; }
.dh-upgrade p { max-width: 620px; margin: 0 0 32px; color: rgba(255,255,255,.62); font-size: 16px; line-height: 1.8; }
.dh-bottleneck { padding: 26px 0; border-top: 1px solid rgba(255,255,255,.24); }
.dh-bottleneck__row { display: grid; grid-template-columns: 1fr minmax(180px, 2fr) 40px; gap: 18px; align-items: center; min-height: 58px; border-bottom: 1px solid rgba(255,255,255,.14); }
.dh-bottleneck__row:last-of-type { border-bottom: 0; }
.dh-bottleneck__row span { font-size: 14px; }
.dh-bottleneck__row i { position: relative; display: block; height: 4px; background: rgba(255,255,255,.18); }
.dh-bottleneck__row i::after { content: ""; position: absolute; left: 0; top: 0; width: var(--dh-bar); height: 100%; background: var(--dh-red); }
.dh-bottleneck__row b { font-family: var(--dh-mono); font-size: 12px; text-align: right; color: rgba(255,255,255,.78); }
.dh-bottleneck > p { margin: 20px 0 0; color: rgba(255,255,255,.42); font-family: var(--dh-mono); font-size: 10px; }
.dh-case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--dh-line); border-bottom: 1px solid var(--dh-line); }
.dh-case-card { min-width: 0; border-right: 1px solid var(--dh-line); background: var(--dh-paper); transition: background-color .25s ease; }
.dh-case-card:last-child { border-right: 0; }
.dh-case-card:hover { background: var(--dh-soft); }
.dh-slot--case { min-height: 260px; border: 0; border-bottom: 1px solid var(--dh-line); }
.dh-slot--case > span { padding: 14px; font-family: var(--dh-mono); font-size: 10px; letter-spacing: .1em; }
.dh-case-card__body { padding: 28px 28px 34px; }
.dh-case-card h3 { margin: 16px 0 24px; font-size: 24px; line-height: 1.35; }
.dh-case-card dl { display: grid; gap: 10px; }
.dh-case-card__body > p { margin: 24px 0 0; color: var(--dh-muted); font-size: 12px; line-height: 1.7; }
.dh-method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--dh-line); border-bottom: 1px solid var(--dh-line); }
.dh-method-grid article { min-height: 300px; padding: 34px; border-right: 1px solid var(--dh-line); }
.dh-method-grid article:last-child { border-right: 0; }
.dh-method-grid h3 { margin: 0 0 28px; font-size: 24px; }
.dh-method-grid ul { margin: 0; padding: 0; list-style: none; }
.dh-method-grid li { padding: 12px 0; border-top: 1px solid var(--dh-line-soft); color: var(--dh-muted); font-size: 14px; }
.dh-method-grid code { font-family: var(--dh-mono); color: var(--dh-ink); font-size: 12px; }
.dh-final { min-height: 520px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .7fr); gap: 80px; align-items: end; }
.dh-final__actions { display: flex; flex-direction: column; align-items: stretch; gap: 12px; padding-bottom: 12px; }
.dh-final__actions .dh-btn { width: 100%; }
.dh-footer { background: var(--dh-black); color: var(--dh-paper); border-top: 1px solid rgba(255,255,255,.18); }
.dh-footer__inner { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: rgba(255,255,255,.52); font-size: 12px; }
.dh-footer nav { display: flex; gap: 24px; }
.dh-footer a { transition: color .2s ease; }
.dh-footer a:hover { color: var(--dh-paper); }

@media (max-width: 1180px) {
  .dh-hero__grid { grid-template-columns: 1fr 1fr; }
  .dh-route__body { padding-left: 42px; padding-right: 42px; }
  .dh-budget-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dh-budget-card:nth-child(2) { border-right: 0; }
  .dh-budget-card:nth-child(-n+2) { border-bottom: 1px solid var(--dh-line); }
  .dh-combo-row { grid-template-columns: minmax(220px, 1.4fr) .7fr .6fr .7fr .8fr 60px; gap: 14px; }
}
@media (max-width: 1024px) {
  .dh-nav__menu { position: absolute; top: var(--dh-nav); left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 24px 16px; background: rgba(255,255,255,.98); color: var(--dh-ink); border-bottom: 1px solid var(--dh-line); }
  .dh-nav__menu.is-open { display: flex; }
  .dh-nav__menu a { min-height: 46px; display: flex; align-items: center; border-bottom: 1px solid var(--dh-line-soft); }
  .dh-nav__toggle { display: block; }
  .dh-brand__sub { display: none; }
  .dh-hero__grid { grid-template-columns: 1fr; }
  .dh-route { min-height: 540px; grid-template-rows: 300px auto; }
  .dh-route--new { border-right: 0; border-bottom: 1px solid var(--dh-line); }
  .dh-hero__meta { grid-template-columns: 1fr; }
  .dh-hero__meta span { min-height: 38px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .dh-hero__meta span:last-child { border-bottom: 0; }
  .dh-section { padding: 90px 0; }
  .dh-section-head { grid-template-columns: 1fr; gap: 34px; }
  .dh-section-head p { max-width: 620px; }
  .dh-use-grid, .dh-method-grid { grid-template-columns: 1fr; }
  .dh-use-card, .dh-method-grid article { border-right: 0; border-bottom: 1px solid var(--dh-line); }
  .dh-use-card:last-child, .dh-method-grid article:last-child { border-bottom: 0; }
  .dh-case-grid { grid-template-columns: 1fr 1fr; }
  .dh-case-card:nth-child(2) { border-right: 0; }
  .dh-case-card:nth-child(3) { grid-column: 1 / -1; border-top: 1px solid var(--dh-line); }
  .dh-upgrade, .dh-final { grid-template-columns: 1fr; gap: 52px; }
}

@media (max-width: 767px) {
  :root { --dh-gutter: 24px; }
  .dh-nav__inner { padding: 0 var(--dh-gutter); grid-template-columns: 1fr auto; }
  .dh-nav__menu { padding-left: var(--dh-gutter); padding-right: var(--dh-gutter); }
  .dh-brand__text { font-size: 12px; }
  .dh-route { min-height: auto; grid-template-rows: 240px auto; }
  .dh-route__visual { min-height: 240px; padding: 12px; }
  .dh-route__body { padding: 22px var(--dh-gutter) 40px; }
  .dh-route h2 { font-size: 45px; line-height: 1.08; }
  .dh-route p { font-size: 14px; line-height: 1.75; }
  .dh-route__tags { margin-top: 18px; margin-bottom: 24px; }
  .dh-btn { width: 100%; min-height: 52px; padding: 0 16px; gap: 16px; font-size: 13px; }
  .dh-section { padding: 72px 0; }
  .dh-section-head { margin-bottom: 40px; }
  .dh-section-head h2 { font-size: 34px; line-height: 1.2; }
  .dh-section-head p { font-size: 14px; }
  .dh-budget-grid { grid-template-columns: 1fr; }
  .dh-budget-card { min-height: 0; border-right: 0; border-bottom: 1px solid var(--dh-line); }
  .dh-budget-card:last-child { border-bottom: 0; }
  .dh-use-card { min-height: 0; padding: 28px 24px; }
  .dh-use-card h3 { font-size: 24px; }
  .dh-matrix-wrap { margin-right: calc(var(--dh-gutter) * -1); margin-left: calc(var(--dh-gutter) * -1); border-right: 0; border-left: 0; }
  .dh-matrix { min-width: 640px; }
  .dh-matrix th, .dh-matrix td { padding: 17px 18px; font-size: 13px; }
  .dh-matrix tbody th { width: 130px; }
  .dh-combo-list { margin-right: calc(var(--dh-gutter) * -1); margin-left: calc(var(--dh-gutter) * -1); }
  .dh-combo-row { grid-template-columns: 1fr 1fr; gap: 14px 18px; min-height: 0; padding: 22px var(--dh-gutter); border-bottom: 1px solid var(--dh-line); }
  .dh-combo-row:hover { padding-left: var(--dh-gutter); padding-right: var(--dh-gutter); }
  .dh-combo-row > div { grid-column: 1 / -1; }
  .dh-combo-row .dh-row-link { grid-column: 1 / -1; justify-self: start; }
  .dh-upgrade h2, .dh-final h2 { font-size: 42px; }
  .dh-upgrade p { font-size: 14px; }
  .dh-bottleneck__row { grid-template-columns: 1fr 90px 32px; gap: 12px; }
  .dh-bottleneck__row span { font-size: 12px; }
  .dh-case-grid { grid-template-columns: 1fr; }
  .dh-case-card, .dh-case-card:nth-child(2), .dh-case-card:nth-child(3) { grid-column: auto; border-right: 0; border-bottom: 1px solid var(--dh-line); }
  .dh-case-card:last-child { border-bottom: 0; }
  .dh-method-grid { margin-right: calc(var(--dh-gutter) * -1); margin-left: calc(var(--dh-gutter) * -1); }
  .dh-method-grid article { padding: 28px var(--dh-gutter); }
  .dh-final { min-height: 460px; }
  .dh-footer__inner { min-height: 120px; align-items: flex-start; flex-direction: column; justify-content: center; }
  .dh-footer nav { flex-wrap: wrap; gap: 16px; }
}

/* 首屏对齐与空图槽视觉修正 */
.dh-slot-art { position: absolute; left: 5%; right: 5%; bottom: 17%; width: 90%; height: 54%; opacity: .52; pointer-events: none; }
.dh-slot--light .dh-slot-art { color: var(--dh-ink); opacity: .32; }
@media (min-width: 1025px) {
  .dh-route { grid-template-rows: minmax(0, 1fr) 430px; }
  .dh-route__body { display: flex; flex-direction: column; }
  .dh-route__body .dh-btn { margin-top: auto; }
}
@media (max-width: 767px) {
  .dh-route { grid-template-rows: auto; }
  .dh-route__visual { display: none; }
  .dh-route__body { min-height: 360px; display: flex; flex-direction: column; padding: 28px var(--dh-gutter) 32px; }
  .dh-route__body .dh-btn { margin-top: auto; }
}