:root {
  --cream: #f1e5cf;
  --cream-soft: #f9f2e5;
  --paper: #fffaf0;
  --terracotta: #b84e35;
  --terracotta-dark: #943924;
  --teal: #083e40;
  --teal-soft: #155b5d;
  --ink: #152c2d;
  --line: #173c3d;
  --yellow: #f2bb53;
  --radius: 22px;
  --shadow: 7px 7px 0 var(--line);
  --shell: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: "Arial Narrow", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: .14;
  background-image:
    radial-gradient(circle at 20% 35%, var(--teal) 0 .55px, transparent .8px),
    radial-gradient(circle at 75% 65%, var(--terracotta) 0 .5px, transparent .75px);
  background-size: 5px 5px, 7px 7px;
}

main section[id] { scroll-margin-top: 92px; }

a { color: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 4px;
  box-shadow: 0 0 0 7px var(--teal);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--paper);
  background: var(--teal);
  border: 2px solid var(--paper);
  transform: translateY(-150%);
}

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

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

.site-header {
  position: fixed;
  top: 0;
  z-index: 100;
  width: 100%;
  padding: 22px 0;
}

.nav-wrap {
  width: var(--shell);
  min-height: 64px;
  margin: auto;
  padding: 7px 8px 7px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255, 250, 240, .9);
  border: 2px solid var(--line);
  border-radius: 999px;
  box-shadow: 4px 4px 0 rgba(8, 62, 64, .9);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  color: var(--cream-soft);
  background: var(--terracotta);
  border: 2px solid var(--line);
  border-radius: 50%;
  font-size: 13px;
  letter-spacing: -.08em;
}

.brand-name { white-space: nowrap; }

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

.site-nav a {
  padding: 9px 15px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: background .2s ease, color .2s ease;
}

.site-nav a:hover, .site-nav a[aria-current="true"] { background: #e4d4b9; }

.site-nav .nav-cta { color: var(--paper); background: var(--teal); }
.site-nav .nav-cta:hover { color: var(--teal); background: var(--yellow); }

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  color: var(--paper);
  background: var(--teal);
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.menu-icon { width: 17px; display: grid; gap: 5px; }
.menu-icon i { height: 2px; background: currentColor; transition: transform .2s ease; }

.hero { min-height: 790px; padding-top: 150px; overflow: hidden; }

.hero-grid {
  min-height: 570px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(380px, .85fr);
  align-items: center;
  gap: clamp(36px, 6vw, 84px);
  padding: 60px 0 82px;
}

.eyebrow, .section-index, .visual-meta, .card-topline, .step-number {
  margin: 0;
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
}

.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.eyebrow span { width: 28px; height: 8px; background: var(--terracotta); border: 2px solid var(--line); border-radius: 9px; }

.hero-title {
  margin: 0;
  max-width: 780px;
  font-size: clamp(62px, 7.1vw, 112px);
  line-height: .93;
  letter-spacing: -.07em;
  font-weight: 900;
}

.title-line { display: block; overflow: hidden; padding: 0 .08em .08em 0; }
.title-line > span { display: inline-block; transform: translateY(110%); animation: title-in .9s cubic-bezier(.2,.75,.2,1) forwards; }
.title-line:nth-child(2) > span { animation-delay: .13s; }
.accent-line { color: var(--terracotta); }

@keyframes title-in { to { transform: translateY(0); } }

.hero-intro { max-width: 585px; margin: 24px 0 0; font-size: clamp(17px, 1.55vw, 21px); line-height: 1.75; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 34px; }

.button {
  min-height: 52px;
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border: 2px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  font-weight: 800;
  box-shadow: 4px 4px 0 var(--line);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.button:hover { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--line); }
.button-primary { color: var(--paper); background: var(--teal); }
.button-primary:hover { color: var(--teal); background: var(--yellow); }
.text-link { display: inline-flex; gap: 8px; align-items: center; font-weight: 800; text-underline-offset: 6px; }

.hero-visual { position: relative; min-height: 470px; }
.visual-card { position: absolute; border: 3px solid var(--line); }

.visual-main {
  inset: 30px 12px 46px 22px;
  padding: 24px;
  overflow: hidden;
  background: var(--terracotta);
  border-radius: 48% 48% 18px 18px;
  box-shadow: 12px 12px 0 var(--teal);
  transform: rotate(2deg);
}

.visual-meta { position: relative; z-index: 2; padding: 6px 11px; display: inline-block; color: var(--paper); background: var(--teal); border-radius: 999px; }

.orbit {
  position: absolute;
  top: 50%; left: 50%;
  width: 265px; height: 265px;
  border: 2px dashed rgba(255,250,240,.76);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: orbit-spin 18s linear infinite;
}

@keyframes orbit-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.orbit::before, .orbit::after { position: absolute; inset: 36px; content: ""; border: 2px solid rgba(255,250,240,.42); border-radius: 50%; }
.orbit::after { inset: 78px; background: var(--yellow); border: 3px solid var(--line); }
.orbit-core { position: absolute; z-index: 2; inset: 101px; background: var(--teal); border: 3px solid var(--line); border-radius: 50%; }
.orbit-node { position: absolute; width: 22px; height: 22px; background: var(--cream-soft); border: 3px solid var(--line); border-radius: 50%; }
.node-one { top: 18px; left: 51px; }.node-two { right: -4px; top: 133px; }.node-three { bottom: 22px; left: 32px; }

.visual-bars { position: absolute; right: 22px; bottom: 22px; display: flex; align-items: end; gap: 7px; height: 70px; }
.visual-bars i { width: 12px; background: var(--cream-soft); border: 2px solid var(--line); }
.visual-bars i:nth-child(1) { height: 25%; }.visual-bars i:nth-child(2) { height: 50%; }.visual-bars i:nth-child(3) { height: 39%; }.visual-bars i:nth-child(4) { height: 70%; }.visual-bars i:nth-child(5) { height: 60%; }.visual-bars i:nth-child(6) { height: 92%; }

.visual-note {
  right: -6px;
  bottom: 4px;
  z-index: 3;
  width: 185px;
  padding: 20px;
  display: grid;
  color: var(--paper);
  background: var(--teal);
  border-radius: 14px;
  box-shadow: 6px 6px 0 var(--yellow);
  transform: rotate(-4deg);
}
.visual-note strong { font-size: 27px; line-height: 1.1; }
.visual-note span:last-child { margin-top: 5px; font-size: 12px; }
.note-arrow { justify-self: end; font-size: 25px; line-height: 1; }

.visual-stamp {
  position: absolute;
  top: 0; right: 2px;
  z-index: 4;
  width: 92px; height: 92px;
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--teal);
  background: var(--yellow);
  border: 3px solid var(--line);
  border-radius: 50%;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .12em;
  transform: rotate(9deg);
}

.signal-strip { width: calc(100% + 20px); margin-left: -10px; overflow: hidden; color: var(--cream-soft); background: var(--teal); border-block: 3px solid var(--line); transform: rotate(-1deg); }
.signal-track { width: max-content; padding: 13px 0; display: flex; align-items: center; gap: 25px; animation: signal-move 25s linear infinite; font-size: 14px; font-weight: 900; letter-spacing: .15em; }
.signal-track i { width: 9px; height: 9px; background: var(--yellow); border-radius: 50%; }
@keyframes signal-move { to { transform: translateX(-50%); } }

.section { padding: 125px 0; }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 80px; margin-bottom: 58px; }
.section-heading h2, .advantage-intro h2, .process-heading h2, .contact h2 { margin: 13px 0 0; font-size: clamp(46px, 6vw, 82px); line-height: 1.04; letter-spacing: -.055em; }
.section-heading > p { max-width: 460px; margin: 0 0 7px; font-size: 18px; }
.section-index { color: var(--terracotta-dark); }

.bento-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr; grid-template-rows: 365px 310px; gap: 22px; }
.bento-card { position: relative; padding: 26px; display: flex; overflow: hidden; border: 3px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.bento-card h3 { margin: 0 0 8px; font-size: clamp(23px, 2.2vw, 31px); line-height: 1.15; letter-spacing: -.04em; }
.bento-card p { max-width: 400px; margin: 0; }
.card-topline { position: absolute; top: 24px; left: 26px; right: 26px; z-index: 2; display: flex; justify-content: space-between; }

.card-strategy { grid-row: span 2; flex-direction: column; justify-content: flex-end; color: var(--paper); background: var(--terracotta); }
.strategy-graphic { position: absolute; inset: 85px 24px auto; height: 310px; }
.strategy-graphic span { position: absolute; left: 50%; width: 200px; height: 200px; border: 3px solid var(--line); border-radius: 50%; transform: translateX(-50%); }
.strategy-graphic span:nth-child(1) { top: 0; background: var(--yellow); }
.strategy-graphic span:nth-child(2) { top: 62px; left: 33%; background: var(--cream-soft); mix-blend-mode: screen; }
.strategy-graphic span:nth-child(3) { top: 62px; left: 67%; background: var(--teal); mix-blend-mode: multiply; }

.card-content { grid-column: span 2; align-items: flex-end; justify-content: space-between; gap: 24px; background: var(--cream-soft); }
.card-content > div:last-child { width: 47%; }
.content-window { width: 46%; height: 218px; padding: 10px; background: var(--teal); border: 3px solid var(--line); border-radius: 12px; transform: rotate(-3deg); box-shadow: 6px 6px 0 var(--yellow); }
.window-head { height: 28px; display: flex; gap: 6px; }
.window-head i { width: 8px; height: 8px; background: var(--cream-soft); border-radius: 50%; }
.window-body { height: calc(100% - 28px); padding: 18px; display: grid; grid-template-columns: .75fr 1.25fr; grid-template-rows: 1fr 1fr; gap: 10px; background: var(--cream); border-radius: 5px; }
.window-body span { border: 2px solid var(--line); }
.window-body span:first-child { grid-row: span 2; background: var(--terracotta); }
.window-body span:nth-child(2) { background: var(--yellow); }
.window-body span:nth-child(3) { background: var(--paper); }

.card-operation { flex-direction: column; justify-content: flex-end; background: var(--yellow); }
.operation-grid { position: absolute; top: 62px; right: 24px; display: grid; grid-template-columns: repeat(2, 42px); gap: 7px; transform: rotate(5deg); }
.operation-grid span { height: 42px; background: var(--cream-soft); border: 2px solid var(--line); }
.operation-grid span:nth-child(2), .operation-grid span:nth-child(3) { border-radius: 50%; background: var(--terracotta); }

.card-data { flex-direction: column; justify-content: flex-end; color: var(--paper); background: var(--teal); }
.data-ring { position: absolute; top: 66px; right: 30px; width: 114px; height: 114px; background: conic-gradient(var(--terracotta) 0 41%, var(--yellow) 41% 76%, var(--cream-soft) 76%); border: 3px solid var(--line); border-radius: 50%; }
.data-ring span { position: absolute; inset: 27px; background: var(--teal); border: 3px solid var(--line); border-radius: 50%; }

.advantages { color: var(--cream-soft); background: var(--teal); border-block: 3px solid var(--line); }
.advantage-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 9vw; }
.advantage-intro { position: sticky; top: 110px; align-self: start; }
.advantage-intro .section-index { color: var(--yellow); }
.advantage-intro > p:last-of-type { max-width: 430px; margin-top: 26px; color: #d8e3dc; font-size: 17px; }
.loop-mark { margin-top: 55px; width: 220px; }
.loop-mark svg { width: 100%; overflow: visible; fill: none; stroke: var(--terracotta); stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; }

.advantage-list { border-top: 2px solid rgba(255,255,255,.35); }
.advantage-item { min-height: 205px; padding: 38px 0; display: grid; grid-template-columns: 45px 1fr 55px; gap: 30px; align-items: start; border-bottom: 2px solid rgba(255,255,255,.35); }
.item-num { color: var(--yellow); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.advantage-item h3 { margin: -7px 0 12px; font-size: clamp(27px, 3vw, 38px); line-height: 1.2; letter-spacing: -.04em; }
.advantage-item p { max-width: 530px; margin: 0; color: #d8e3dc; }
.item-symbol { width: 50px; height: 50px; display: grid; place-items: center; color: var(--teal); background: var(--yellow); border: 2px solid var(--cream-soft); border-radius: 50%; font-size: 24px; }

.process { background: var(--cream-soft); }
.process-heading { max-width: 760px; margin-bottom: 64px; }
.process-heading > p:last-child { max-width: 610px; margin: 24px 0 0; font-size: 18px; }
.process-list { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; counter-reset: steps; }
.process-step { position: relative; min-height: 345px; padding: 24px; border: 3px solid var(--line); border-right: 0; }
.process-step:first-child { border-radius: 20px 0 0 20px; }
.process-step:last-child { border-right: 3px solid var(--line); border-radius: 0 20px 20px 0; }
.process-step:nth-child(even) { background: var(--cream); }
.process-step:nth-child(3) { color: var(--paper); background: var(--terracotta); }
.step-number { display: block; margin-bottom: 46px; }
.step-icon { width: 70px; height: 70px; margin-bottom: 25px; display: grid; place-items: center; background: var(--yellow); border: 3px solid var(--line); border-radius: 50%; }
.process-step h3 { margin: 0 0 11px; font-size: 24px; letter-spacing: -.03em; }
.process-step p { margin: 0; font-size: 14px; line-height: 1.75; }
.step-icon > span { position: relative; width: 31px; height: 25px; display: block; }
.icon-talk { border: 3px solid var(--line); border-radius: 50%; }
.icon-talk::after { position: absolute; left: 2px; bottom: -8px; width: 10px; height: 10px; content: ""; border-left: 3px solid var(--line); transform: skew(-25deg); }
.icon-map { border: 3px solid var(--line); transform: rotate(-7deg); }
.icon-map::before, .icon-map::after { position: absolute; top: -3px; width: 3px; height: 25px; content: ""; background: var(--line); }
.icon-map::before { left: 8px; }.icon-map::after { right: 8px; }
.icon-build { background: linear-gradient(90deg, var(--line) 3px, transparent 3px 13px, var(--line) 13px 16px, transparent 16px 27px, var(--line) 27px); border-block: 3px solid var(--line); }
.icon-review { border: 3px solid var(--line); border-radius: 50%; border-left-color: transparent; transform: rotate(-35deg); }
.icon-review::after { position: absolute; top: -6px; left: -2px; content: ""; border: 6px solid transparent; border-right-color: var(--line); transform: rotate(-10deg); }

.contact { padding: 95px 0 110px; background: var(--cream); }
.contact-shell { position: relative; min-height: 520px; padding: 76px clamp(32px, 7vw, 100px); display: flex; flex-direction: column; align-items: flex-start; justify-content: center; overflow: hidden; color: var(--paper); background: var(--terracotta); border: 3px solid var(--line); border-radius: 36px; box-shadow: 12px 12px 0 var(--teal); }
.contact .section-index { color: var(--yellow); }
.contact h2 { position: relative; z-index: 2; font-size: clamp(58px, 8.5vw, 118px); }
.contact h2 span { color: var(--yellow); }
.contact p:not(.section-index) { position: relative; z-index: 2; max-width: 590px; margin: 24px 0 32px; font-size: 18px; }
.button-light { position: relative; z-index: 2; color: var(--teal); background: var(--cream-soft); }
.button-light:hover { background: var(--yellow); }
.contact-shape { position: absolute; border: 3px solid var(--line); }
.shape-one { width: 360px; height: 360px; right: -90px; top: -75px; background: var(--teal); border-radius: 50%; }
.shape-two { width: 250px; height: 250px; right: 140px; bottom: -125px; background: var(--yellow); transform: rotate(45deg); }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1000px) {
  :root { --shell: min(100% - 32px, 820px); }
  .hero { padding-top: 115px; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 70px; }
  .hero-copy { position: relative; z-index: 2; }
  .hero-visual { width: min(550px, 88vw); min-height: 500px; margin: -20px 0 0 auto; }
  .bento-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 520px 350px 320px; }
  .card-strategy { grid-row: auto; grid-column: span 2; }
  .strategy-graphic { width: 370px; left: 20px; top: 80px; }
  .card-strategy > div:last-child { max-width: 46%; margin-left: auto; margin-bottom: 40px; }
  .card-content { grid-column: span 2; }
  .advantage-layout { gap: 50px; }
  .process-list { grid-template-columns: 1fr 1fr; gap: 16px; }
  .process-step, .process-step:last-child { border: 3px solid var(--line); border-radius: 18px; }
}

@media (max-width: 760px) {
  :root { --shell: calc(100% - 28px); --shadow: 5px 5px 0 var(--line); }
  .site-header { padding: 14px 0; }
  .nav-wrap { min-height: 58px; padding: 6px 7px 6px 13px; border-radius: 18px; flex-wrap: wrap; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-name { max-width: 170px; overflow: hidden; text-overflow: ellipsis; font-size: 13px; }
  .menu-toggle { display: inline-flex; }
  .site-nav { width: 100%; padding: 8px 2px 4px; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: grid; }
  .site-nav a { text-align: center; background: #eadcc3; }
  .site-nav .nav-cta { grid-column: span 2; }
  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .hero { min-height: auto; padding-top: 104px; }
  .hero-grid { min-height: 0; padding: 48px 0 70px; gap: 36px; }
  .hero-title { font-size: clamp(52px, 16vw, 78px); }
  .hero-intro { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-visual { min-height: 390px; width: 100%; margin: 0; }
  .visual-main { inset: 25px 15px 45px 2px; box-shadow: 8px 8px 0 var(--teal); }
  .orbit { width: 220px; height: 220px; }
  .orbit::after { inset: 60px; }
  .orbit-core { inset: 82px; }
  .visual-note { right: 0; width: 160px; }
  .visual-stamp { width: 78px; height: 78px; font-size: 13px; }
  .signal-track { animation-duration: 18s; }
  .section { padding: 90px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; margin-bottom: 38px; }
  .section-heading h2, .advantage-intro h2, .process-heading h2 { font-size: clamp(42px, 13vw, 62px); }
  .section-heading > p { font-size: 16px; }
  .bento-grid { display: grid; grid-template-columns: 1fr; grid-template-rows: repeat(4, auto); gap: 16px; }
  .bento-card, .card-strategy, .card-content { grid-column: auto; min-height: 390px; }
  .strategy-graphic { top: 73px; left: 50%; width: 310px; height: 220px; transform: translateX(-50%) scale(.72); transform-origin: top center; }
  .card-strategy > div:last-child { max-width: none; margin: 0; }
  .card-content { align-items: flex-start; flex-direction: column; justify-content: flex-end; }
  .content-window { position: absolute; top: 70px; left: 30px; width: calc(100% - 60px); height: 175px; }
  .card-content > div:last-child { width: 100%; }
  .card-operation, .card-data { min-height: 330px; }
  .advantage-layout { grid-template-columns: 1fr; gap: 60px; }
  .advantage-intro { position: static; }
  .loop-mark { display: none; }
  .advantage-item { grid-template-columns: 34px 1fr; gap: 18px; }
  .item-symbol { display: none; }
  .process-heading { margin-bottom: 42px; }
  .process-list { grid-template-columns: 1fr; }
  .process-step { min-height: 300px; }
  .contact { padding: 72px 0 90px; }
  .contact-shell { min-height: 560px; padding: 54px 25px; border-radius: 24px; box-shadow: 7px 7px 0 var(--teal); }
  .contact h2 { font-size: clamp(58px, 19vw, 88px); }
  .contact p:not(.section-index) { font-size: 16px; }
  .shape-one { width: 230px; height: 230px; right: -110px; }
  .shape-two { right: -40px; }
}

@media (max-width: 390px) {
  .brand-name { max-width: 126px; }
  .menu-label { display: none; }
  .menu-toggle { width: 42px; height: 42px; justify-content: center; padding: 0; }
  .hero-title { font-size: 49px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .title-line > span, .js .reveal { opacity: 1; transform: none; }
}