:root {
  --navy-950: #030b14;
  --navy-900: #06111f;
  --navy-850: #091827;
  --navy-800: #0c2032;
  --mist-50: #f1f4f3;
  --mist-100: #e6ebea;
  --mist-300: #aeb9ba;
  --mist-500: #75848a;
  --cyan: #39e3f2;
  --cyan-soft: #8af2f8;
  --ink: #10202a;
  --line-dark: rgba(227, 239, 240, 0.14);
  --line-light: rgba(12, 32, 50, 0.16);
  --frame: min(1240px, calc(100vw - 80px));
  --header-height: 84px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  color: var(--mist-50);
  background: var(--navy-950);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  content: "";
  opacity: .12;
  background-image:
    repeating-radial-gradient(circle at 17% 32%, transparent 0, rgba(255,255,255,.15) .6px, transparent 1px, transparent 3px),
    repeating-radial-gradient(circle at 82% 61%, transparent 0, rgba(4,14,24,.22) .7px, transparent 1.2px, transparent 4px);
  background-size: 13px 11px, 17px 19px;
  mix-blend-mode: soft-light;
}

button,
a {
  font: inherit;
}

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

svg {
  display: block;
}

.frame {
  width: var(--frame);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  padding: 10px 16px;
  color: var(--navy-950);
  background: var(--cyan);
  border-radius: 3px;
  transform: translateY(-160%);
  transition: transform .2s ease;
}

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

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--header-height);
  padding: 0 42px;
  border-bottom: 1px solid transparent;
  transition: background-color .25s ease, border-color .25s ease, height .25s ease;
}

.site-header.is-scrolled {
  height: 70px;
  background: rgba(3, 11, 20, .88);
  border-bottom-color: var(--line-dark);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .06em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  color: var(--cyan);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.brand-mark .brand-spark {
  fill: currentColor;
  stroke: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 14px;
}

.site-nav a:not(.nav-cta) {
  position: relative;
  color: #d5dddd;
}

.site-nav a:not(.nav-cta)::after {
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 1px;
  content: "";
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s var(--ease);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 17px;
  color: var(--navy-950);
  font-weight: 700;
  background: var(--cyan);
  border: 1px solid var(--cyan);
  border-radius: 2px;
  transition: color .2s ease, background-color .2s ease;
}

.nav-cta:hover {
  color: var(--cyan);
  background: transparent;
}

.menu-toggle {
  display: none;
  color: var(--mist-50);
  background: transparent;
  border: 0;
}

.hero {
  position: relative;
  min-height: 760px;
  height: max(760px, 100svh);
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 75% 44%, rgba(35, 174, 195, .11), transparent 32%),
    linear-gradient(145deg, #071421 0%, var(--navy-950) 64%);
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background: linear-gradient(90deg, rgba(4, 12, 21, .95) 0%, rgba(4, 12, 21, .66) 44%, rgba(4, 12, 21, .1) 74%);
}

.hero-grid {
  position: absolute;
  inset: 0 0 0 52%;
  z-index: -1;
  opacity: .36;
  background-image:
    linear-gradient(var(--line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 74px 74px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 20%, #000 82%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 20%, #000 82%, transparent);
  transform: perspective(700px) rotateY(-16deg) scale(1.16);
  transform-origin: right center;
}

.hero-orbit {
  position: absolute;
  top: 50%;
  right: max(-70px, calc((100vw - 1450px) / 2));
  z-index: -1;
  width: min(54vw, 760px);
  aspect-ratio: 1;
  transform: translateY(-48%);
}

.hero-orbit svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.orbit {
  fill: none;
  stroke: rgba(147, 190, 196, .28);
  stroke-width: 1;
}

.orbit-b {
  stroke-dasharray: 4 9;
}

.orbit-c {
  stroke: rgba(57, 227, 242, .47);
}

.orbit-route {
  fill: none;
  stroke: rgba(57, 227, 242, .85);
  stroke-width: 1.5;
  stroke-dasharray: 2 8;
}

.orbit-dot,
.orbit-core-pulse {
  fill: var(--cyan);
}

.orbit-core {
  fill: rgba(57, 227, 242, .08);
  stroke: rgba(57, 227, 242, .75);
  stroke-width: 1;
}

.hero-content {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100%;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 28px;
}

.eyebrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0;
  padding-bottom: 15px;
  color: var(--mist-300);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  border-bottom: 1px solid var(--line-dark);
}

.hero .eyebrow {
  width: min(590px, 51%);
}

.hero-copy {
  align-self: center;
  max-width: 720px;
  padding: 30px 0;
}

.hero h1,
.section-heading h2,
.manifesto h2,
.method-content h2,
.about-copy h2,
.start-section h2 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -.055em;
  line-height: 1.05;
}

.hero h1 {
  max-width: 740px;
  font-size: clamp(58px, 6.7vw, 104px);
}

.hero h1 em {
  color: var(--cyan);
  font-style: normal;
}

.hero-copy > p {
  max-width: 630px;
  margin: 34px 0 0;
  color: #b6c2c4;
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-top: 40px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-width: 194px;
  min-height: 52px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--cyan);
  border-radius: 2px;
  transition: color .25s ease, background-color .25s ease, transform .25s var(--ease);
}

.button svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.button-primary {
  color: var(--navy-950);
  background: var(--cyan);
}

.button-primary:hover {
  color: var(--cyan);
  background: transparent;
  transform: translateY(-2px);
}

.text-link {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  color: var(--mist-100);
  font-size: 14px;
  border-bottom: 1px solid rgba(230, 235, 234, .4);
  transition: color .2s ease, border-color .2s ease;
}

.text-link:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.hero-foot {
  display: flex;
  justify-content: space-between;
  color: var(--mist-500);
  font-size: 11px;
  letter-spacing: .14em;
}

.signal {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.signal i {
  display: block;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 13px rgba(57, 227, 242, .8);
}

.manifesto {
  color: var(--ink);
  background: var(--mist-50);
  border-bottom: 1px solid var(--line-light);
}

.manifesto-layout {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 50px;
  padding-top: 130px;
  padding-bottom: 140px;
}

.section-index {
  margin: 8px 0 0;
  color: #65747a;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
}

.manifesto h2 {
  max-width: 920px;
  font-size: clamp(42px, 5.2vw, 76px);
}

.manifesto h2::before {
  content: "“";
  margin-left: -.55em;
  color: #21b9c7;
}

.manifesto-layout > div > p {
  max-width: 680px;
  margin: 38px 0 0 auto;
  color: #4d5f65;
  font-size: 18px;
  line-height: 1.9;
}

.focus-section {
  padding: 132px 0 150px;
  color: var(--ink);
  background: #e7eceb;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.45fr .65fr;
  gap: 8vw;
  align-items: end;
  margin-bottom: 84px;
}

.focus-section .eyebrow {
  color: #67787d;
  border-bottom-color: var(--line-light);
}

.section-heading h2 {
  margin-top: 32px;
  font-size: clamp(46px, 5vw, 76px);
}

.section-intro {
  margin: 0 0 7px;
  color: #52646a;
  font-size: 16px;
  line-height: 1.9;
}

.focus-list {
  border-top: 1px solid var(--line-light);
}

.focus-card {
  display: grid;
  grid-template-columns: 70px 250px 1fr;
  gap: 48px;
  align-items: center;
  min-height: 250px;
  border-bottom: 1px solid var(--line-light);
}

.card-number,
.card-meta {
  color: #60747a;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
}

.card-icon {
  position: relative;
  width: 190px;
  height: 125px;
  overflow: hidden;
  background: #dbe3e2;
  border: 1px solid rgba(15, 48, 59, .17);
}

.card-icon::after {
  position: absolute;
  inset: 0;
  content: "";
  background-image: linear-gradient(rgba(12, 32, 50, .08) 1px, transparent 1px), linear-gradient(90deg, rgba(12, 32, 50, .08) 1px, transparent 1px);
  background-size: 20px 20px;
}

.icon-interface span {
  position: absolute;
  z-index: 1;
  border: 1px solid #358590;
}

.icon-interface span:nth-child(1) { inset: 22px 38px 28px 24px; }
.icon-interface span:nth-child(2) { top: 37px; left: 40px; width: 85px; height: 4px; border: 0; background: var(--cyan); }
.icon-interface span:nth-child(3) { top: 56px; left: 40px; width: 54px; height: 22px; }

.icon-system span {
  position: absolute;
  z-index: 1;
  width: 28px;
  height: 28px;
  border: 1px solid #317c87;
  border-radius: 50%;
}

.icon-system span:nth-child(1) { top: 23px; left: 25px; }
.icon-system span:nth-child(2) { top: 68px; left: 79px; background: var(--cyan); border-color: var(--cyan); }
.icon-system span:nth-child(3) { top: 29px; right: 25px; }
.icon-system span:nth-child(4) { top: 48px; left: 48px; width: 94px; height: 1px; border: 0; border-radius: 0; background: #43858e; transform: rotate(12deg); }

.icon-growth span {
  position: absolute;
  z-index: 1;
  bottom: 22px;
  width: 28px;
  background: #317c87;
}

.icon-growth span:nth-child(1) { left: 34px; height: 28px; }
.icon-growth span:nth-child(2) { left: 80px; height: 55px; }
.icon-growth span:nth-child(3) { left: 126px; height: 82px; background: var(--cyan); }

.card-copy {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 30px;
  align-items: start;
}

.card-meta {
  grid-column: 1 / -1;
  margin: 0 0 -10px;
}

.card-copy h3 {
  margin: 0;
  font-size: clamp(24px, 2.25vw, 34px);
  line-height: 1.25;
}

.card-copy > p:last-child {
  max-width: 430px;
  margin: 0;
  color: #52646a;
  line-height: 1.85;
}

.method-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(520px, .95fr);
  min-height: 980px;
  background: var(--navy-900);
}

.method-visual {
  position: relative;
  min-height: 780px;
  overflow: hidden;
  background:
    radial-gradient(circle at 48% 53%, rgba(57, 227, 242, .1), transparent 31%),
    #081624;
  border-right: 1px solid var(--line-dark);
}

.map-grid {
  position: absolute;
  inset: 0;
  opacity: .5;
  background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px);
  background-size: 64px 64px;
}

.method-visual svg {
  position: absolute;
  inset: 7% 8%;
  width: 84%;
  height: 86%;
  overflow: visible;
  fill: var(--navy-900);
  stroke: var(--cyan);
  stroke-width: 1.8;
}

.map-route {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 2.5;
  stroke-dasharray: 6 8;
}

.route-shadow {
  stroke: rgba(57, 227, 242, .12);
  stroke-width: 34;
  stroke-dasharray: none;
}

.method-visual .map-end {
  fill: var(--cyan);
}

.map-label {
  position: absolute;
  padding: 5px 8px;
  color: var(--mist-300);
  font-size: 10px;
  letter-spacing: .14em;
  background: rgba(6, 17, 31, .8);
  border: 1px solid var(--line-dark);
}

.label-a { left: 9%; bottom: 10%; }
.label-b { left: 36%; top: 59%; }
.label-c { left: 54%; top: 36%; }
.label-d { right: 8%; top: 9%; color: var(--cyan); }

.method-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 112px clamp(48px, 7vw, 112px);
}

.method-content h2 {
  margin-top: 32px;
  font-size: clamp(46px, 4.7vw, 72px);
}

.method-list {
  margin: 64px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.method-list li {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line-dark);
}

.method-num {
  padding-top: 4px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}

.method-list h3 {
  margin: 0 0 6px;
  font-size: 20px;
}

.method-list p {
  margin: 0;
  color: #97a7aa;
  font-size: 14px;
}

.about-section {
  padding: 148px 0;
  color: var(--ink);
  background: var(--mist-50);
}

.about-layout {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 12vw;
}

.about-section .eyebrow {
  color: #68777c;
  border-bottom-color: var(--line-light);
}

.about-copy h2 {
  margin-top: 42px;
  font-size: clamp(52px, 6vw, 88px);
}

.about-lead {
  margin: 44px 0 24px;
  color: #233b44;
  font-size: 21px;
  line-height: 1.8;
}

.about-copy > p:last-child {
  max-width: 650px;
  color: #57676d;
  line-height: 1.9;
}

.about-principles {
  align-self: end;
  border-top: 1px solid var(--line-light);
}

.principle {
  display: grid;
  grid-template-columns: 42px 90px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 26px 0;
  border-bottom: 1px solid var(--line-light);
}

.principle > span {
  color: #258d98;
  font-size: 11px;
  font-weight: 700;
}

.principle h3,
.principle p {
  margin: 0;
}

.principle h3 {
  font-size: 20px;
}

.principle p {
  color: #607177;
  font-size: 14px;
}

.start-section {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  background: linear-gradient(120deg, #071522, #030b14 65%);
}

.start-orbit {
  position: absolute;
  top: 50%;
  left: -15vw;
  width: 62vw;
  aspect-ratio: 1;
  border: 1px solid rgba(57, 227, 242, .23);
  border-radius: 50%;
  transform: translateY(-50%);
}

.start-orbit::before,
.start-orbit::after {
  position: absolute;
  inset: 15%;
  content: "";
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}

.start-orbit::after {
  inset: 32%;
  border-color: rgba(57, 227, 242, .3);
}

.start-layout {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 11vw;
  align-items: center;
  min-height: 720px;
  padding-top: 90px;
  padding-bottom: 90px;
}

.start-section .section-index {
  color: var(--cyan);
}

.start-section h2 {
  margin-top: 22px;
  font-size: clamp(52px, 6vw, 88px);
}

.brief-card {
  padding: 38px;
  background: rgba(11, 31, 48, .7);
  border: 1px solid var(--line-dark);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.brief-label {
  margin: 0 0 22px;
  color: var(--mist-300);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
}

.brief-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.brief-card li {
  display: flex;
  gap: 18px;
  padding: 16px 0;
  color: #dce4e4;
  border-bottom: 1px solid var(--line-dark);
}

.brief-card li span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
}

.contact-note {
  margin: 22px 0 26px;
  color: #91a3a7;
  font-size: 13px;
  line-height: 1.75;
}

.brief-card .button {
  width: 100%;
}

@media (max-width: 1100px) {
  :root {
    --frame: min(100% - 56px, 1000px);
  }

  .hero-orbit {
    right: -15vw;
    width: 66vw;
    opacity: .7;
  }

  .hero::before {
    background: linear-gradient(90deg, rgba(4, 12, 21, .96) 0%, rgba(4, 12, 21, .74) 55%, rgba(4, 12, 21, .25) 100%);
  }

  .hero .eyebrow { width: 60%; }
  .focus-card { grid-template-columns: 50px 190px 1fr; gap: 28px; }
  .card-icon { width: 180px; }
  .card-copy { grid-template-columns: 1fr; gap: 13px; }
  .card-meta { margin: 0; }
  .method-section { grid-template-columns: .9fr 1.1fr; }
  .method-content { padding-inline: 55px; }
  .about-layout, .start-layout { gap: 7vw; }
}

@media (max-width: 820px) {
  :root {
    --header-height: 70px;
    --frame: calc(100% - 40px);
  }

  .site-header,
  .site-header.is-scrolled {
    height: var(--header-height);
    padding: 0 20px;
    background: rgba(3, 11, 20, .93);
    border-bottom-color: var(--line-dark);
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0 10px 10px;
    cursor: pointer;
  }

  .menu-label {
    font-size: 12px;
    letter-spacing: .1em;
  }

  .menu-icon {
    position: relative;
    display: block;
    width: 24px;
    height: 16px;
  }

  .menu-icon i {
    position: absolute;
    right: 0;
    display: block;
    width: 24px;
    height: 1px;
    background: currentColor;
    transition: transform .2s ease, top .2s ease;
  }

  .menu-icon i:first-child { top: 4px; }
  .menu-icon i:last-child { top: 12px; }
  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child { top: 8px; transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child { top: 8px; transform: rotate(-45deg); }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    display: grid;
    width: 100%;
    padding: 22px 20px 28px;
    gap: 0;
    visibility: hidden;
    opacity: 0;
    background: rgba(3, 11, 20, .98);
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-10px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav a:not(.nav-cta) {
    padding: 15px 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .nav-cta {
    margin-top: 18px;
    text-align: center;
  }

  .hero { min-height: 720px; height: 100svh; }
  .hero-grid { inset: 0; opacity: .2; transform: none; }
  .hero-orbit { top: 45%; right: -48vw; width: 110vw; opacity: .44; }
  .hero .eyebrow { width: 100%; }
  .hero h1 { font-size: clamp(51px, 13.6vw, 78px); }
  .hero-copy { align-self: center; padding-block: 45px; }
  .hero-copy > p { max-width: 580px; margin-top: 25px; font-size: 16px; }
  .hero-actions { margin-top: 30px; }

  .manifesto-layout { grid-template-columns: 1fr; padding-block: 90px; }
  .manifesto h2::before { margin-left: 0; }
  .manifesto-layout > div > p { margin-left: 0; }

  .focus-section { padding-block: 94px; }
  .section-heading { grid-template-columns: 1fr; gap: 30px; margin-bottom: 58px; }
  .section-intro { max-width: 600px; }
  .focus-card { grid-template-columns: 48px 1fr; min-height: 0; padding: 35px 0; }
  .card-icon { grid-column: 2; width: 100%; max-width: 320px; }
  .card-copy { grid-column: 2; }

  .method-section { grid-template-columns: 1fr; }
  .method-visual { min-height: 560px; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .method-content { padding: 90px 28px; }
  .method-content .eyebrow { width: 100%; }

  .about-section { padding-block: 94px; }
  .about-layout { grid-template-columns: 1fr; gap: 70px; }
  .about-principles { width: 100%; }

  .start-layout { grid-template-columns: 1fr; min-height: 0; padding-block: 100px; }
  .start-orbit { left: -65vw; width: 145vw; }
  .brief-card { max-width: 560px; }
}

@media (max-width: 540px) {
  :root { --frame: calc(100% - 32px); }
  .brand-name { font-size: 14px; }
  .brand-mark { width: 30px; height: 30px; }
  .hero { min-height: 680px; }
  .hero-content { padding-bottom: 20px; }
  .hero h1 { font-size: clamp(47px, 14.5vw, 64px); line-height: 1.08; }
  .hero-copy > p { line-height: 1.7; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 16px; }
  .hero-foot { font-size: 9px; letter-spacing: .08em; }
  .hero-foot > span:first-child { display: none; }
  .hero-foot { justify-content: flex-end; }
  .manifesto h2,
  .section-heading h2,
  .method-content h2 { font-size: 40px; }
  .manifesto-layout { gap: 25px; }
  .focus-card { grid-template-columns: 35px 1fr; gap: 14px; }
  .card-icon { height: 116px; }
  .card-copy h3 { font-size: 24px; }
  .method-visual { min-height: 430px; }
  .method-content { padding: 78px 20px; }
  .method-list { margin-top: 45px; }
  .method-list li { grid-template-columns: 42px 1fr; }
  .about-copy h2,
  .start-section h2 { font-size: 50px; }
  .about-lead { font-size: 18px; }
  .principle { grid-template-columns: 32px 64px 1fr; gap: 12px; }
  .brief-card { padding: 27px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line-dark: rgba(255, 255, 255, .38);
    --line-light: rgba(0, 0, 0, .32);
  }
}