:root {
  --ink: #100e0b;
  --paper: #fbf7ed;
  --paper-deep: #eadfcb;
  --tomato: #ef4937;
  --cobalt: #1d5ba8;
  --olive: #b9ca74;
  --gold: #f3ca63;
  --rose: #f4b7ad;
  --white: #fffaf0;
  --muted: #6f675d;
  --cream: #fff3d6;
  --line: rgba(16, 14, 11, 0.08);
  --shadow: 12px 14px 0 rgba(16, 14, 11, 0.9);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Gabarito, "PingFang SC", "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(16, 14, 11, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 14, 11, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 18px 18px;
}

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

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.intro,
.outro {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(16, 14, 11, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 14, 11, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 18px 18px;
}

.intro {
  align-content: stretch;
  min-height: 92svh;
  padding: clamp(18px, 3vw, 34px);
}

.site-nav {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.brand-pill,
.site-nav div {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.brand-pill span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: var(--white);
  background: var(--ink);
  font-family: "Archivo Black", sans-serif;
  font-size: 1rem;
}

.site-nav div {
  gap: 6px;
}

.site-nav div a {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  border: 1px solid rgba(16, 14, 11, 0.08);
  border-radius: 6px;
  padding: 0 10px;
  background: rgba(255, 250, 240, 0.7);
}

.intro-shell {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
  gap: clamp(28px, 5vw, 84px);
  width: min(1240px, 100%);
  margin: auto;
  align-items: center;
}

.intro-copy {
  display: grid;
  gap: 18px;
  justify-items: start;
}

.intro-kicker {
  position: relative;
  z-index: 1;
  max-width: 100%;
  margin: 0;
  color: var(--tomato);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.intro h1,
.outro h2 {
  position: relative;
  z-index: 1;
  max-width: 100%;
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(5.6rem, 16vw, 15.5rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.intro-copy > p:not(.intro-kicker) {
  position: relative;
  z-index: 1;
  width: min(640px, 100%);
  max-width: 640px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.35rem);
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.intro-actions a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  border: 2px solid var(--ink);
  border-radius: 6px;
  padding: 0 16px;
  color: var(--white);
  background: var(--tomato);
  font-weight: 900;
  box-shadow: 5px 6px 0 rgba(16, 14, 11, 0.9);
}

.intro-actions a + a {
  color: var(--ink);
  background: var(--white);
}

.hero-visual {
  position: relative;
  min-height: min(620px, 68svh);
  transform-style: preserve-3d;
}

.lesson-sticker {
  position: absolute;
  display: grid;
  align-content: end;
  min-width: 0;
  border: 3px solid var(--ink);
  border-radius: 8px;
  padding: clamp(16px, 2vw, 24px);
  box-shadow: var(--shadow);
  transform-origin: center;
  animation: floatSticker 7s ease-in-out infinite;
}

.lesson-sticker span,
.lesson-sticker small {
  font-weight: 900;
  text-transform: uppercase;
}

.lesson-sticker span {
  font-size: 0.74rem;
}

.lesson-sticker strong {
  margin: 10px 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.6rem, 3vw, 3.4rem);
  line-height: 0.95;
}

.lesson-sticker small {
  color: rgba(16, 14, 11, 0.62);
}

.sticker-large {
  left: 2%;
  top: 14%;
  z-index: 4;
  width: min(360px, 72%);
  min-height: 270px;
  color: var(--white);
  background: var(--tomato);
}

.sticker-large small {
  color: rgba(255, 250, 240, 0.7);
}

.sticker-blue {
  right: 4%;
  top: 4%;
  z-index: 3;
  width: 210px;
  min-height: 210px;
  background: #dceaf0;
  animation-delay: -1.7s;
}

.sticker-rose {
  right: 12%;
  bottom: 10%;
  z-index: 2;
  width: 250px;
  min-height: 190px;
  background: var(--rose);
  animation-delay: -3.2s;
}

.sticker-gold {
  left: 15%;
  bottom: 2%;
  z-index: 5;
  width: 185px;
  min-height: 170px;
  background: var(--gold);
  animation-delay: -4.4s;
}

.sticker-gold strong {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(3rem, 7vw, 6rem);
}

.hero-orbit {
  position: absolute;
  right: 5%;
  top: 24%;
  width: 270px;
  height: 270px;
  border: 2px dashed rgba(16, 14, 11, 0.2);
  border-radius: 50%;
}

.hero-orbit i {
  position: absolute;
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 0 0 2px var(--ink);
}

.hero-orbit i:nth-child(1) {
  left: 16%;
  top: 24%;
}

.hero-orbit i:nth-child(2) {
  right: 18%;
  top: 16%;
  background: var(--tomato);
}

.hero-orbit i:nth-child(3) {
  left: 44%;
  bottom: 6%;
  background: var(--olive);
}

.hero-orbit i:nth-child(4) {
  right: 4%;
  bottom: 28%;
  background: var(--gold);
}

.hero-orbit i:nth-child(5) {
  left: 5%;
  bottom: 34%;
  background: var(--cobalt);
}

.intro-strip {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  width: min(1180px, 100%);
  margin: 0 auto;
  border: 2px solid var(--ink);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink);
  box-shadow: 8px 9px 0 rgba(16, 14, 11, 0.1);
}

.intro-strip span {
  min-height: 52px;
  display: grid;
  place-items: center;
  padding: 0 12px;
  background: rgba(255, 250, 240, 0.94);
  font-weight: 900;
  text-align: center;
}

@keyframes floatSticker {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(-1deg);
  }

  50% {
    transform: translate3d(0, -12px, 0) rotate(1deg);
  }
}

.featured,
.ship,
.proof {
  position: relative;
  padding: clamp(60px, 9vw, 128px) clamp(18px, 4vw, 56px);
  background:
    linear-gradient(90deg, rgba(16, 14, 11, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 14, 11, 0.04) 1px, transparent 1px),
    var(--paper);
  background-size: 18px 18px;
}

.section-heading,
.ship-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.64fr);
  gap: clamp(24px, 5vw, 78px);
  width: min(1180px, 100%);
  margin: 0 auto clamp(28px, 5vw, 62px);
  align-items: end;
}

.section-heading p,
.ship-heading p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--tomato);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading h2,
.ship-heading h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.7rem, 7vw, 7rem);
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading span {
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.7;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.feature-card {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: clamp(22px, 2.1vw, 32px);
  min-height: 430px;
  align-content: stretch;
  border: 3px solid var(--ink);
  border-radius: 8px;
  padding: clamp(18px, 2.4vw, 28px);
  box-shadow: 8px 9px 0 rgba(16, 14, 11, 0.9);
  overflow: hidden;
}

.feature-card span,
.feature-card small {
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.feature-card h3 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.72rem, 2.4vw, 2.55rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.feature-card p {
  margin: 0;
  line-height: 1.62;
}

.feature-card small {
  opacity: 0.72;
}

.feature-red {
  color: var(--white);
  background: var(--tomato);
}

.feature-red p,
.feature-blue p {
  color: rgba(255, 250, 240, 0.78);
}

.feature-blue {
  color: var(--white);
  background: var(--cobalt);
}

.feature-cream {
  background: var(--cream);
}

.feature-green {
  background: var(--olive);
}

.ship {
  background:
    linear-gradient(90deg, rgba(255, 250, 240, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 250, 240, 0.04) 1px, transparent 1px),
    var(--ink);
  background-size: 18px 18px;
  color: var(--white);
}

.ship-heading {
  color: var(--white);
}

.ship-heading p {
  color: var(--gold);
}

.ship-heading a {
  justify-self: end;
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  border-radius: 6px;
  padding: 0 16px;
  color: var(--ink);
  background: var(--gold);
  font-weight: 900;
}

.ship-list {
  display: grid;
  width: min(1180px, 100%);
  margin: 0 auto;
  border-top: 1px solid rgba(255, 250, 240, 0.18);
}

.ship-list article {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr) 160px;
  gap: clamp(20px, 4vw, 64px);
  align-items: start;
  padding: clamp(26px, 4vw, 48px) 0;
  border-bottom: 1px solid rgba(255, 250, 240, 0.18);
}

.ship-list span,
.ship-list strong {
  color: rgba(255, 250, 240, 0.54);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.ship-list h3 {
  margin: 0 0 14px;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.9rem, 3.6vw, 4rem);
  line-height: 1.12;
  text-wrap: balance;
}

.ship-list p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 250, 240, 0.68);
  font-size: clamp(0.98rem, 1.4vw, 1.12rem);
  line-height: 1.72;
}

.ship-list strong {
  justify-self: end;
  color: var(--gold);
}

.proof {
  overflow: hidden;
}

.proof-marquee {
  display: flex;
  width: max-content;
  gap: clamp(24px, 5vw, 64px);
  margin-bottom: clamp(26px, 5vw, 56px);
  animation: marquee 22s linear infinite;
}

.proof-marquee span {
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(2.5rem, 7vw, 6.4rem);
  line-height: 0.9;
  text-transform: uppercase;
  white-space: nowrap;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.proof-grid blockquote {
  min-height: 250px;
  margin: 0;
  display: grid;
  align-content: space-between;
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: clamp(20px, 3vw, 30px);
  background: rgba(255, 250, 240, 0.92);
  box-shadow: 7px 8px 0 rgba(16, 14, 11, 0.08);
}

.proof-grid p {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.3rem, 2.2vw, 2rem);
  line-height: 1.25;
}

.proof-grid cite {
  color: var(--muted);
  font-style: normal;
  font-weight: 900;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-33.333%);
  }
}

.showcase {
  position: relative;
  min-height: 100svh;
  background: var(--paper);
  overflow: hidden;
}

.showcase.native-scroll {
  min-height: 1000svh;
}

.showcase-frame {
  position: relative;
  display: grid;
  min-height: 100svh;
  padding: clamp(14px, 3vw, 38px);
  place-items: center;
  perspective: 850px;
  overflow: hidden;
}

.showcase.native-scroll .showcase-frame {
  position: sticky;
  top: 0;
}

.showcase-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 0;
  background:
    linear-gradient(90deg, rgba(16, 14, 11, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 14, 11, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, var(--paper) 0%, #f8efe0 100%);
  background-size: 18px 18px, 18px 18px, auto;
  box-shadow: inset 0 1px 0 rgba(16, 14, 11, 0.08);
}

.side-rail {
  position: absolute;
  top: clamp(28px, 5vw, 64px);
  bottom: clamp(28px, 5vw, 64px);
  left: clamp(26px, 6vw, 78px);
  z-index: 10;
  display: grid;
  grid-template-rows: auto 1fr repeat(4, 52px) 1fr auto;
  gap: 7px;
  align-items: center;
}

.rail-logo,
.rail-button {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 10px;
}

.rail-logo {
  border: 2px solid var(--ink);
  color: var(--white);
  background: var(--ink);
  font-family: "Archivo Black", sans-serif;
}

.rail-button {
  color: var(--ink);
  border: 2px solid rgba(16, 14, 11, 0.16);
  background: rgba(255, 250, 240, 0.86);
  box-shadow: 3px 4px 0 rgba(16, 14, 11, 0.1);
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms ease;
}

.rail-button.active {
  color: var(--white);
  border-color: var(--ink);
  background: var(--tomato);
  transform: translateX(4px);
  box-shadow: 4px 5px 0 rgba(16, 14, 11, 0.9);
}

.rail-number {
  font-family: "Archivo Black", sans-serif;
  font-size: 0.72rem;
  line-height: 1;
  letter-spacing: 0;
}

.rail-brand {
  display: grid;
  gap: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: 0.8rem;
  line-height: 0.85;
}

.rail-brand span {
  color: var(--muted);
  font-family: Gabarito, sans-serif;
  font-size: 0.62rem;
  font-weight: 900;
}

.book-call {
  position: absolute;
  top: clamp(30px, 5vw, 66px);
  right: clamp(32px, 7vw, 92px);
  z-index: 10;
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  border-radius: 6px;
  padding: 0 12px;
  color: var(--white);
  background: var(--tomato);
  font-size: 0.67rem;
  font-weight: 900;
}

.panel-stage {
  position: relative;
  z-index: 5;
  min-width: 0;
  width: min(980px, calc(100vw - 250px));
  height: min(620px, 70svh);
  transform-style: preserve-3d;
}

.panel-stack {
  position: absolute;
  inset: 0;
  min-width: 0;
  transform-style: preserve-3d;
}

.panel-card {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(270px, 0.98fr) minmax(310px, 1.02fr);
  gap: clamp(18px, 3vw, 42px);
  width: min(820px, 100%);
  min-height: min(470px, 62svh);
  padding: clamp(24px, 4vw, 46px);
  border-radius: 8px;
  border: 3px solid var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
  transform: translate(-50%, -50%);
  transform-origin: center bottom;
  isolation: isolate;
  will-change: transform;
  overflow: hidden;
}

.panel-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 250, 240, 0.12) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 250, 240, 0.1) 1px, transparent 1px);
  background-size: 22px 22px;
  mix-blend-mode: soft-light;
  opacity: 0.32;
}

.theme-tomato {
  background: var(--tomato);
}

.theme-gold {
  background: #ff8b45;
}

.theme-cobalt {
  background: var(--cobalt);
}

.theme-olive {
  color: var(--ink);
  background: var(--rose);
}

.card-copy,
.card-media,
.panel-number {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.panel-kicker {
  margin: 0 0 16px;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  opacity: 0.82;
}

.card-copy h2 {
  max-width: 500px;
  margin: 0 0 16px;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.35rem, 4.6vw, 5.1rem);
  line-height: 1.04;
  letter-spacing: 0;
  overflow-wrap: normal;
}

.card-copy > p:not(.panel-kicker) {
  max-width: 470px;
  margin: 0;
  color: rgba(255, 250, 240, 0.78);
  font-size: 0.98rem;
  line-height: 1.55;
}

.theme-olive .card-copy > p:not(.panel-kicker),
.theme-olive .mentor small,
.theme-olive .panel-number {
  color: rgba(23, 19, 15, 0.68);
}

.theme-olive .mentor span {
  color: var(--white);
  background: var(--ink);
}

.mentor {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: clamp(26px, 7vw, 76px);
}

.mentor span {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 50%;
  color: var(--ink);
  background: var(--white);
  font-weight: 900;
}

.mentor strong,
.mentor small {
  display: block;
}

.mentor small {
  margin-top: 2px;
  color: rgba(255, 250, 240, 0.68);
}

.card-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  align-self: end;
}

.media-shot {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 138px;
  align-content: end;
  margin: 0;
  padding: 16px;
  border: 3px solid var(--ink);
  border-radius: 8px;
  color: var(--ink);
  background: var(--cream);
  overflow: hidden;
}

.media-shot:first-child {
  grid-row: span 2;
}

.media-shot span,
.media-shot strong {
  position: relative;
  z-index: 1;
}

.media-shot span {
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.media-shot strong {
  margin-top: 6px;
  font-family: "Archivo Black", "Noto Serif SC", sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 0.95;
  overflow-wrap: anywhere;
}

.media-dialog::before,
.media-map::before,
.media-note::before,
.media-mouth::before,
.media-network::before,
.media-calendar::before {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: 50%;
  border: 2px dashed rgba(23, 19, 15, 0.22);
}

.media-dialog {
  background:
    linear-gradient(145deg, var(--cream) 0 34%, var(--rose) 34.3% 100%);
}

.media-map {
  background:
    linear-gradient(90deg, rgba(16, 14, 11, 0.12) 2px, transparent 2px),
    linear-gradient(0deg, rgba(16, 14, 11, 0.12) 2px, transparent 2px),
    #e4edc1;
  background-size: 24px 24px;
}

.media-note {
  background: #f0d06b;
}

.media-wave {
  background: var(--paper);
}

.bars {
  display: flex;
  gap: 8px;
  align-items: end;
  height: 86px;
  margin-top: 18px;
}

.bars i {
  display: block;
  width: 18%;
  border-radius: 999px;
  background: var(--tomato);
}

.bars i:nth-child(1) {
  height: 34%;
}

.bars i:nth-child(2) {
  height: 58%;
}

.bars i:nth-child(3) {
  height: 90%;
}

.bars i:nth-child(4) {
  height: 54%;
}

.bars i:nth-child(5) {
  height: 40%;
}

.media-mouth {
  background: #dceaf0;
}

.media-vowels {
  background: var(--rose);
}

.media-network {
  background:
    radial-gradient(circle at 22% 28%, var(--white) 0 12px, transparent 13px),
    radial-gradient(circle at 68% 34%, var(--white) 0 16px, transparent 17px),
    radial-gradient(circle at 46% 72%, var(--white) 0 20px, transparent 21px),
    #cbd88f;
}

.media-tags {
  background: #f0d06b;
}

.media-sentence {
  background: var(--cream);
}

.media-calendar {
  background:
    linear-gradient(#0f0e0b 0 24%, transparent 24.5%),
    var(--cream);
}

.media-progress {
  background: #cbd88f;
}

.media-finish {
  background: var(--rose);
}

.panel-number {
  position: absolute;
  top: clamp(20px, 3vw, 36px);
  right: clamp(20px, 3vw, 38px);
  color: rgba(255, 250, 240, 0.76);
  font-weight: 900;
}

.stage-caption {
  position: absolute;
  left: 50%;
  bottom: -56px;
  z-index: 12;
  display: flex;
  gap: 12px;
  align-items: center;
  width: min(460px, 70vw);
  min-height: 44px;
  border: 1px solid rgba(16, 14, 11, 0.12);
  border-radius: 6px;
  padding: 8px 12px;
  background: rgba(255, 250, 240, 0.92);
  box-shadow: 0 18px 42px rgba(16, 14, 11, 0.1);
  transform: translateX(-50%);
}

.stage-caption span {
  border-radius: 4px;
  padding: 6px 8px;
  color: var(--white);
  background: var(--ink);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.stage-caption strong {
  font-size: 0.94rem;
}

.scroll-meter {
  position: absolute;
  top: 23%;
  right: clamp(30px, 6vw, 76px);
  z-index: 10;
  width: 1px;
  height: 48svh;
  background: rgba(16, 14, 11, 0.12);
}

.scroll-meter span {
  display: block;
  width: 3px;
  height: 18%;
  border-radius: 999px;
  background: var(--ink);
  transform-origin: top;
}

.stage-caption strong {
  min-width: 0;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.scroll-range {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.scroll-step {
  height: 115svh;
  padding: 0;
  opacity: 0;
}

.shot-showcase .intro,
.shot-showcase .featured,
.shot-showcase .ship,
.shot-showcase .proof {
  display: none;
}

.shot-showcase .showcase {
  min-height: 100svh;
}

.shot-showcase .showcase-frame {
  position: relative;
}

.shot-showcase .scroll-range {
  display: none;
}

.shot-join .intro,
.shot-join .featured,
.shot-join .showcase,
.shot-join .ship,
.shot-join .proof {
  display: none;
}

.outro {
  align-content: center;
  gap: 42px;
  padding: clamp(24px, 6vw, 80px);
  text-align: center;
}

.outro > div,
.outro-practice,
.signup-form {
  position: relative;
  z-index: 1;
}

.outro p {
  margin: 0 0 10px;
  font-family: "Archivo Black", sans-serif;
  font-size: clamp(1rem, 2vw, 1.6rem);
}

.outro span {
  display: block;
  max-width: 820px;
  margin-top: 20px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.28rem);
  line-height: 1.7;
  text-wrap: balance;
}

.outro-practice {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: min(960px, 100%);
}

.outro-practice article {
  min-height: 180px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  padding: 18px;
  text-align: left;
  background: rgba(255, 250, 240, 0.9);
  box-shadow: 8px 9px 0 rgba(16, 14, 11, 0.08);
}

.outro-practice strong {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 38px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--tomato);
  font-weight: 900;
}

.outro-practice h3 {
  margin: 0 0 8px;
  font-size: 1.24rem;
}

.outro-practice p {
  margin: 0;
  color: var(--muted);
  font-family: Gabarito, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.94rem;
  line-height: 1.62;
}

.signup-form {
  display: grid;
  grid-template-columns: auto minmax(220px, 360px) auto;
  gap: 8px;
  align-items: center;
  width: min(680px, 100%);
  padding: 8px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 8px 10px 0 rgba(16, 14, 11, 0.12);
}

.signup-form label {
  padding-left: 12px;
  font-weight: 900;
}

.signup-form input {
  min-width: 0;
  min-height: 46px;
  border: 0;
  border-radius: 6px;
  padding: 0 14px;
  outline: 0;
  background: rgba(16, 14, 11, 0.07);
}

.signup-form button {
  min-height: 46px;
  border-radius: 6px;
  padding: 0 18px;
  color: var(--white);
  background: var(--tomato);
  font-weight: 900;
}

.signup-form small {
  grid-column: 1 / -1;
  min-height: 18px;
  color: var(--muted);
  text-align: left;
  padding-left: 12px;
}

@media (max-width: 980px) {
  .intro {
    min-height: auto;
    padding: 16px;
  }

  .site-nav {
    align-items: flex-start;
  }

  .site-nav div {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .intro-shell {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 54px 0 28px;
  }

  .intro h1 {
    font-size: clamp(4.8rem, 21vw, 10rem);
  }

  .hero-visual {
    min-height: 560px;
  }

  .intro-strip,
  .featured-grid,
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-heading,
  .ship-heading {
    grid-template-columns: 1fr;
  }

  .ship-heading a {
    justify-self: start;
  }

  .featured-grid {
    gap: 10px;
  }

  .feature-card {
    min-height: 330px;
  }

  .ship-list article {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .ship-list strong {
    grid-column: 2;
    justify-self: start;
  }

  .showcase {
    min-height: 100svh;
    background: var(--paper);
  }

  .showcase.native-scroll {
    min-height: 1000svh;
  }

  .showcase-frame {
    position: relative;
    align-content: start;
    justify-items: center;
    width: 100vw;
    max-width: 100vw;
    min-height: 100svh;
    padding: 24px 16px 78px;
    perspective: 850px;
    overflow: hidden;
  }

  .showcase-frame::before {
    inset: 0;
    border-radius: 0;
  }

  .side-rail {
    position: relative;
    inset: auto;
    display: flex;
    width: 100%;
    justify-content: center;
    margin-bottom: 22px;
    z-index: 20;
  }

  .rail-brand {
    display: none;
  }

  .book-call {
    display: none;
  }

  .scroll-meter {
    top: 30%;
    right: 12px;
    height: 40svh;
  }

  .panel-stage {
    position: absolute;
    left: 50%;
    top: 96px;
    width: min(520px, calc(100vw - 32px));
    max-width: 100%;
    height: min(660px, calc(100svh - 150px));
    min-height: 500px;
    transform: translateX(-50%);
    transform-style: preserve-3d;
  }

  .panel-stack {
    position: absolute;
    inset: 0;
    width: 100%;
    display: block;
    transform-style: preserve-3d;
  }

  .panel-card {
    position: absolute;
    left: 50%;
    top: 50%;
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 12px;
    width: 100%;
    max-width: 100%;
    height: 100%;
    min-height: 0;
    padding: 20px;
  }

  .stage-caption {
    bottom: -54px;
    width: min(430px, 90vw);
  }

  .scroll-step {
    height: 105svh;
  }

  .card-media {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 8px;
    align-self: stretch;
    min-height: 0;
  }

  .media-shot:first-child {
    grid-row: span 2;
  }

  .media-shot {
    min-height: 0;
    padding: 10px;
    border-width: 2px;
  }

  .media-shot strong {
    font-size: clamp(0.92rem, 4vw, 1.18rem);
  }

  .card-copy h2 {
    max-width: none;
    margin-bottom: 10px;
    font-size: clamp(1.8rem, 6.6vw, 2.7rem);
    line-height: 1;
    overflow-wrap: anywhere;
  }

  .card-copy > p:not(.panel-kicker) {
    display: -webkit-box;
    max-width: none;
    overflow: hidden;
    font-size: 0.9rem;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .mentor {
    margin-top: 12px;
  }
}

@media (max-width: 620px) {
  .intro,
  .featured,
  .ship,
  .proof,
  .outro {
    padding: 24px;
  }

  .site-nav {
    gap: 14px;
    flex-direction: column;
  }

  .site-nav div {
    justify-content: flex-start;
  }

  .intro-shell {
    padding-top: 36px;
  }

  .intro h1 {
    font-size: clamp(4.2rem, 28vw, 6.8rem);
  }

  .outro h2 {
    font-size: clamp(2.5rem, 15vw, 4.8rem);
  }

  .intro-copy > p:not(.intro-kicker) {
    font-size: 1rem;
  }

  .intro-actions a {
    flex: 1 1 140px;
    justify-content: center;
  }

  .hero-visual {
    min-height: 470px;
  }

  .lesson-sticker {
    padding: 14px;
    border-width: 2px;
    box-shadow: 6px 7px 0 rgba(16, 14, 11, 0.9);
  }

  .sticker-large {
    width: 78%;
    min-height: 220px;
  }

  .sticker-blue {
    width: 154px;
    min-height: 150px;
  }

  .sticker-rose {
    right: 3%;
    width: 190px;
    min-height: 150px;
  }

  .sticker-gold {
    left: 5%;
    width: 148px;
    min-height: 130px;
  }

  .hero-orbit {
    right: 0;
    width: 210px;
    height: 210px;
  }

  .intro-strip,
  .featured-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .intro-strip span {
    min-height: 44px;
  }

  .section-heading h2,
  .ship-heading h2 {
    font-size: clamp(3.1rem, 15vw, 5.2rem);
  }

  .feature-card {
    min-height: 280px;
    box-shadow: 6px 7px 0 rgba(16, 14, 11, 0.9);
  }

  .ship-list article {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .ship-list strong {
    grid-column: auto;
  }

  .proof-marquee span {
    font-size: clamp(2.35rem, 13vw, 4rem);
  }

  .proof-grid blockquote {
    min-height: 190px;
  }

  .side-rail {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .panel-stage {
    left: 16px;
    top: 92px;
    width: calc(100vw - 32px);
    height: min(640px, calc(100svh - 150px));
    min-height: 500px;
    transform: none;
  }

  .panel-card {
    width: 100%;
    max-width: 100%;
    padding: 18px;
  }

  .card-copy h2 {
    max-width: none;
    font-size: clamp(1.62rem, 7vw, 2.05rem);
    line-height: 1.05;
  }

  .card-copy > p:not(.panel-kicker) {
    max-width: none;
    font-size: 0.86rem;
  }

  .panel-kicker {
    margin-bottom: 10px;
  }

  .media-shot strong {
    font-size: clamp(0.84rem, 3.7vw, 1rem);
  }

  .signup-form {
    grid-template-columns: 1fr;
  }

  .outro-practice {
    grid-template-columns: 1fr;
  }

  .outro-practice article {
    min-height: auto;
  }

  .outro-practice strong {
    margin-bottom: 18px;
  }

  .signup-form label {
    padding: 0 6px;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}