:root {
  --bg: #fff8f4;
  --paper: #ffffff;
  --ink: #21171d;
  --text: #302b34;
  --muted: #736873;
  --soft: #9a8f99;
  --line: rgba(33, 23, 29, 0.12);
  --line-strong: rgba(33, 23, 29, 0.2);
  --hot: #ff4d6d;
  --hot-dark: #e93659;
  --blue: #315cff;
  --mint: #00a98f;
  --sun: #ffc84a;
  --lilac: #9b7bff;
  --cream: #fff1cf;
  --pink-soft: #ffe7ee;
  --blue-soft: #eaf0ff;
  --mint-soft: #e2f8f3;
  --shadow: 0 22px 58px rgba(70, 43, 56, 0.14);
  --shadow-lift: 0 28px 72px rgba(255, 77, 109, 0.18);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", "Noto Sans SC", "PingFang SC", sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
  background:
    repeating-linear-gradient(90deg, rgba(255, 77, 109, 0.055) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, rgba(49, 92, 255, 0.045) 0 1px, transparent 1px 84px),
    linear-gradient(135deg, #fff8f4 0%, #fffafd 42%, #f4fbff 100%);
}

body.demo-open {
  overflow: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: 0.42;
  background-image:
    repeating-linear-gradient(135deg, rgba(33, 23, 29, 0.035) 0 1px, transparent 1px 12px);
  mask-image: linear-gradient(to bottom, transparent, black 12%, black 88%, transparent);
}

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

button {
  font: inherit;
}

.topbar {
  position: fixed;
  top: 14px;
  left: clamp(14px, 3vw, 34px);
  right: clamp(14px, 3vw, 34px);
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 16px 44px rgba(70, 43, 56, 0.12);
  backdrop-filter: blur(22px) saturate(1.2);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
  gap: 10px;
  color: var(--ink);
  font-weight: 950;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: white;
  border: 1px solid rgba(255, 77, 109, 0.26);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--hot), var(--lilac));
  box-shadow: 0 12px 26px rgba(255, 77, 109, 0.28);
}

.topnav {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid rgba(33, 23, 29, 0.08);
  border-radius: 999px;
  background: rgba(255, 248, 244, 0.82);
}

.topnav a {
  padding: 9px 12px;
  color: var(--muted);
  border-radius: 999px;
  font-size: 14px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.topnav a:hover {
  color: var(--hot-dark);
  background: white;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(70, 43, 56, 0.1);
}

.progress-rail {
  position: fixed;
  top: 50%;
  left: 24px;
  z-index: 20;
  display: grid;
  gap: 10px;
  padding: 12px 9px;
  transform: translateY(-50%);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 38px rgba(70, 43, 56, 0.1);
  backdrop-filter: blur(18px);
}

.progress-rail a {
  display: grid;
  grid-template-columns: 10px;
  align-items: center;
  color: transparent;
  font-size: 0;
}

.progress-rail span {
  width: 9px;
  height: 9px;
  border: 1px solid rgba(33, 23, 29, 0.22);
  border-radius: 50%;
  background: white;
}

.progress-rail a.is-active span,
.progress-rail a:hover span {
  border-color: var(--hot);
  background: var(--hot);
  box-shadow: 0 0 0 6px rgba(255, 77, 109, 0.14);
}

.section {
  position: relative;
  min-height: auto;
  padding: 104px clamp(24px, 6vw, 112px) 82px clamp(76px, 9vw, 136px);
  display: grid;
  align-content: center;
  gap: 32px;
  border-bottom: 1px solid rgba(33, 23, 29, 0.08);
}

.section::before {
  content: "";
  position: absolute;
  inset: 20px;
  pointer-events: none;
  border: 1px solid rgba(255, 77, 109, 0.09);
}

.section:nth-of-type(even) {
  background:
    linear-gradient(100deg, rgba(255, 231, 238, 0.58), transparent 38%),
    linear-gradient(260deg, rgba(226, 248, 243, 0.58), transparent 42%);
}

.cover,
.hero {
  min-height: 100vh;
  align-items: center;
  overflow: hidden;
}

.cover {
  place-items: center;
  text-align: center;
  background:
    linear-gradient(115deg, rgba(255, 231, 238, 0.74), transparent 44%),
    linear-gradient(245deg, rgba(226, 248, 243, 0.82), transparent 48%),
    linear-gradient(180deg, #fffdfb, #fff8f4);
}

.cover::after {
  content: "AI + ME";
  position: absolute;
  left: 50%;
  bottom: clamp(18px, 5vw, 72px);
  color: rgba(33, 23, 29, 0.045);
  font-size: clamp(86px, 17vw, 240px);
  line-height: 0.82;
  font-weight: 950;
  pointer-events: none;
  transform: translateX(-50%);
  white-space: nowrap;
}

.cover-poster,
.cover-notes,
.cover-agenda {
  position: relative;
  z-index: 1;
}

.cover-poster {
  display: grid;
  justify-items: center;
  max-width: 1120px;
}

.cover-poster h1 {
  margin: 16px 0 18px;
  max-width: 1100px;
  font-size: clamp(82px, 11.6vw, 172px);
  line-height: 0.78;
}

.cover-poster h1 span,
.cover-poster h1 strong {
  display: block;
}

.cover-poster h1 span {
  font-size: 0.56em;
  line-height: 0.9;
}

.cover-poster h1 strong {
  font-size: 1em;
}

.cover-poster .lead {
  max-width: 780px;
}

.cover-topic-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 18px 0 26px;
}

.cover-topic-row span {
  padding: 9px 12px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 10px 22px rgba(70, 43, 56, 0.08);
  font-weight: 950;
}

.cover-notes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cover-note {
  position: absolute;
  padding: 12px 14px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: 999px;
  background: white;
  box-shadow: 0 16px 38px rgba(70, 43, 56, 0.12);
  font-weight: 950;
  white-space: nowrap;
}

.note-human {
  top: 24%;
  left: clamp(28px, 9vw, 148px);
  color: var(--hot-dark);
  transform: rotate(-6deg);
}

.note-ai {
  top: 27%;
  right: clamp(28px, 9vw, 148px);
  color: var(--blue);
  transform: rotate(5deg);
}

.note-loop {
  left: clamp(44px, 12vw, 220px);
  bottom: 24%;
  color: var(--mint);
  transform: rotate(4deg);
}

.note-demo {
  right: clamp(44px, 12vw, 220px);
  bottom: 23%;
  background: var(--sun);
  transform: rotate(-5deg);
}

.timeline-card span {
  color: var(--hot-dark);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.cover-agenda {
  position: absolute;
  left: clamp(76px, 9vw, 136px);
  right: clamp(24px, 6vw, 112px);
  bottom: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 38px rgba(70, 43, 56, 0.1);
  backdrop-filter: blur(14px);
}

.cover-agenda b,
.cover-agenda span {
  padding: 8px 11px;
  border-radius: 999px;
}

.cover-agenda b {
  color: white;
  background: var(--hot);
}

.cover-agenda span {
  color: var(--ink);
  background: rgba(255, 248, 244, 0.82);
  border: 1px solid rgba(33, 23, 29, 0.08);
}

.cover-subline {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 4px;
  padding: 9px 12px;
  color: var(--ink);
  border: 1px solid rgba(49, 92, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 10px 24px rgba(70, 43, 56, 0.09);
  font-weight: 950;
}

.hero {
  grid-template-columns: minmax(0, 1.04fr) minmax(310px, 0.76fr);
}

.hero::after {
  content: "AI NOTE";
  position: absolute;
  right: clamp(20px, 8vw, 120px);
  bottom: clamp(18px, 5vw, 70px);
  color: rgba(33, 23, 29, 0.045);
  font-size: clamp(72px, 17vw, 230px);
  line-height: 0.8;
  font-weight: 950;
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero-copy::before {
  content: "2026 share";
  position: absolute;
  top: -48px;
  left: 2px;
  padding: 9px 13px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 999px;
  background: var(--sun);
  box-shadow: 0 12px 26px rgba(255, 200, 74, 0.25);
  font-size: 13px;
  font-weight: 950;
  transform: rotate(-3deg);
}

.eyebrow,
.section-kicker,
.panel-label,
.demo-index,
.demo-label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0;
  padding: 8px 11px;
  color: var(--hot-dark);
  border: 1px solid rgba(255, 77, 109, 0.18);
  border-radius: 999px;
  background: rgba(255, 231, 238, 0.8);
  font-size: 12px;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0;
  font-weight: 950;
}

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

h1,
h2,
h3 {
  color: var(--ink);
  text-wrap: balance;
}

h1 {
  margin: 18px 0 20px;
  max-width: 920px;
  font-size: clamp(62px, 10vw, 148px);
  line-height: 0.84;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  max-width: 980px;
  font-size: clamp(34px, 5.2vw, 78px);
  line-height: 0.96;
}

h3 {
  margin-bottom: 14px;
  font-size: clamp(22px, 2.25vw, 32px);
  line-height: 1.12;
}

p,
li {
  color: var(--muted);
  line-height: 1.72;
}

.lead,
.section-note {
  max-width: 760px;
  color: #5a4d57;
  font-size: clamp(18px, 2vw, 27px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-action,
.ghost-action,
.demo-card button {
  position: relative;
  border: 1px solid rgba(255, 77, 109, 0.2);
  border-radius: 999px;
  background: var(--hot);
  color: white;
  padding: 13px 18px;
  font-weight: 950;
  cursor: pointer;
  box-shadow: 0 16px 34px rgba(255, 77, 109, 0.26);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-action::after,
.demo-card button::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: inherit;
  pointer-events: none;
}

.ghost-action {
  display: inline-flex;
  align-items: center;
  background: white;
  color: var(--ink);
  box-shadow: 0 12px 30px rgba(70, 43, 56, 0.12);
}

.primary-action:hover,
.ghost-action:hover,
.demo-card button:hover {
  transform: translateY(-3px) rotate(-1deg);
  box-shadow: var(--shadow-lift);
}

.command-board,
.definition-card,
.story-panel,
.phase-card,
.route-card,
.demo-card,
.logic-board {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.command-board {
  position: relative;
  z-index: 1;
  align-self: center;
  min-height: min(610px, 78vh);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  aspect-ratio: 3 / 4;
  border: 2px solid rgba(33, 23, 29, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), white 58%),
    linear-gradient(135deg, var(--pink-soft), var(--cream) 48%, var(--blue-soft));
  transform: rotate(2deg);
}

.command-board::before,
.command-board::after {
  content: "";
  position: absolute;
  border-radius: var(--radius);
  pointer-events: none;
}

.command-board::before {
  inset: 18px -18px -18px 18px;
  z-index: -1;
  border: 2px solid rgba(49, 92, 255, 0.16);
  background: rgba(255, 255, 255, 0.58);
}

.command-board::after {
  top: 72px;
  right: -22px;
  width: 92px;
  height: 34px;
  background: var(--sun);
  box-shadow: 0 12px 26px rgba(255, 200, 74, 0.22);
  transform: rotate(8deg);
}

.demo-wall {
  position: relative;
  flex: 1;
  min-height: 330px;
  margin: 2px 2px 22px;
  border: 1px dashed rgba(255, 77, 109, 0.2);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.055) 1px, transparent 1px),
    linear-gradient(rgba(49, 92, 255, 0.045) 1px, transparent 1px),
    rgba(255, 255, 255, 0.26);
  background-size: 28px 28px;
}

.demo-wall::before {
  content: "Demo wall";
  position: absolute;
  top: 14px;
  left: 16px;
  z-index: 2;
  padding: 7px 10px;
  color: var(--hot-dark);
  border: 1px solid rgba(255, 77, 109, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 950;
}

.demo-wall::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 20px;
  width: 86px;
  height: 30px;
  border-radius: 6px;
  background: rgba(49, 92, 255, 0.14);
  transform: rotate(-7deg);
}

.wall-card {
  position: absolute;
  display: grid;
  align-content: end;
  gap: 7px;
  width: clamp(150px, 42%, 220px);
  min-height: 190px;
  padding: 16px;
  color: var(--ink);
  text-align: left;
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 18px 42px rgba(70, 43, 56, 0.16);
  cursor: pointer;
  transition: transform 220ms ease, box-shadow 220ms ease, z-index 220ms ease;
}

.wall-card::before {
  content: "";
  position: absolute;
  inset: 12px 12px auto;
  height: 86px;
  border-radius: 7px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.22), transparent 46%),
    var(--wall-bg, var(--pink-soft));
}

.wall-card::after {
  content: "";
  position: absolute;
  top: -13px;
  left: 50%;
  width: 72px;
  height: 26px;
  border-radius: 5px;
  background: rgba(255, 200, 74, 0.78);
  box-shadow: 0 8px 16px rgba(255, 200, 74, 0.22);
  transform: translateX(-50%) rotate(var(--tape-rotate, -4deg));
}

.wall-card:hover {
  z-index: 5;
  transform: translateY(-10px) rotate(var(--card-rotate, 0deg)) scale(1.04);
  box-shadow: 0 28px 64px rgba(255, 77, 109, 0.22);
}

.wall-card b {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--ink);
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1;
}

.wall-card em {
  position: relative;
  z-index: 1;
  color: var(--hot-dark);
  font-size: 12px;
  font-style: normal;
  font-weight: 950;
  text-transform: uppercase;
}

.wall-card small {
  position: relative;
  z-index: 1;
  max-width: 15em;
  color: var(--muted);
  line-height: 1.45;
}

.wall-card i {
  position: absolute;
  top: 32px;
  right: 26px;
  width: 44px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.84);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.24);
}

.wall-pin {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 1;
  width: 13px;
  height: 13px;
  border: 3px solid white;
  border-radius: 50%;
  background: var(--hot);
  box-shadow: 0 5px 14px rgba(70, 43, 56, 0.2);
}

.wall-card-resume {
  --wall-bg: linear-gradient(135deg, #ff7a92, #ffc84a);
  --card-rotate: -8deg;
  --tape-rotate: 5deg;
  top: 54px;
  left: 22px;
  z-index: 2;
  transform: rotate(var(--card-rotate));
}

.wall-card-portfolio {
  --wall-bg: linear-gradient(135deg, #315cff, #9b7bff);
  --card-rotate: 6deg;
  --tape-rotate: -6deg;
  top: 26px;
  right: 28px;
  z-index: 3;
  min-height: 220px;
  transform: rotate(var(--card-rotate));
}

.wall-card-travel {
  --wall-bg: linear-gradient(135deg, #00a98f, #8ee8d3);
  --card-rotate: -2deg;
  --tape-rotate: 4deg;
  left: 30%;
  bottom: 18px;
  z-index: 4;
  transform: rotate(var(--card-rotate));
}

.board-top,
.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}

.board-top strong,
.window-title {
  color: var(--ink);
  font-weight: 950;
}

.board-top span,
.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--hot);
}

.board-top span:nth-child(2),
.window-dots span:nth-child(2) {
  background: var(--sun);
}

.board-top span:nth-child(3),
.window-dots span:nth-child(3) {
  background: var(--mint);
}

.command-board p {
  margin: 10px 0 0;
  padding: 13px 14px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 18px rgba(70, 43, 56, 0.08);
}

.command-board b {
  color: var(--hot);
  margin-right: 8px;
}

.section-head {
  position: relative;
  max-width: 1080px;
}

.section-head::after {
  content: "";
  display: block;
  width: min(420px, 72vw);
  height: 10px;
  margin-top: 18px;
  background:
    linear-gradient(90deg, var(--hot) 0 26%, var(--sun) 26% 44%, var(--mint) 44% 68%, var(--blue) 68% 100%);
  border-radius: 999px;
}

.phase-grid,
.shift-grid,
.demo-grid,
.route-compare,
.story-grid,
.logic-board,
.closing-grid {
  display: grid;
  gap: 18px;
}

.phase-grid {
  grid-template-columns: 0.9fr 1.12fr 1fr;
  align-items: stretch;
}

.shift-grid {
  grid-template-columns: 0.92fr 1.08fr;
  align-items: stretch;
}

.timeline-board {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 370px);
  gap: 18px;
  max-width: none;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(49, 92, 255, 0.04) 1px, transparent 1px),
    rgba(255, 255, 255, 0.74);
  background-size: 28px 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.timeline-flow {
  position: relative;
  display: grid;
}

.timeline-flow::before {
  content: "";
  position: absolute;
  top: 62px;
  bottom: 62px;
  left: calc(8px + clamp(82px, 12vw, 140px) + 31px);
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--hot), var(--sun), var(--mint), var(--blue));
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: clamp(82px, 12vw, 140px) 34px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 8px;
}

.timeline-year {
  justify-self: end;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 950;
  line-height: 1;
}

.timeline-dot {
  position: relative;
  z-index: 1;
  width: 22px;
  height: 22px;
  border: 4px solid white;
  border-radius: 50%;
  background: var(--hot);
  box-shadow: 0 0 0 7px rgba(255, 77, 109, 0.14);
}

.timeline-card {
  position: relative;
  padding: 20px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 14px 34px rgba(70, 43, 56, 0.1);
}

.timeline-card h3 {
  margin: 8px 0 10px;
}

.timeline-card p {
  margin: 0;
}

.timeline-item.is-shift .timeline-dot {
  background: var(--sun);
  box-shadow: 0 0 0 7px rgba(255, 200, 74, 0.18);
}

.timeline-item.is-major .timeline-card {
  border-color: rgba(255, 77, 109, 0.28);
  background:
    linear-gradient(135deg, rgba(255, 231, 238, 0.82), rgba(255, 255, 255, 0.94) 54%, rgba(226, 248, 243, 0.72));
  box-shadow: var(--shadow-lift);
}

.timeline-item.is-major .timeline-dot {
  width: 28px;
  height: 28px;
  background: var(--hot);
  box-shadow: 0 0 0 9px rgba(255, 77, 109, 0.2);
}

.timeline-item.is-major .timeline-card::after {
  content: "质变";
  position: absolute;
  top: -15px;
  right: 18px;
  padding: 8px 12px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.08);
  border-radius: 999px;
  background: var(--sun);
  font-size: 13px;
  font-weight: 950;
  transform: rotate(4deg);
}

.timeline-insights {
  position: relative;
  display: grid;
  align-content: space-between;
  gap: 18px;
  min-height: 100%;
  padding: 24px;
  overflow: hidden;
  color: white;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 77, 109, 0.94), rgba(33, 23, 29, 0.96) 45%, rgba(0, 169, 143, 0.9));
  box-shadow: 0 20px 48px rgba(33, 23, 29, 0.22);
}

.timeline-insights::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.15) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.11) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(160deg, black, transparent 72%);
}

.timeline-insights > * {
  position: relative;
  z-index: 1;
}

.insight-kicker {
  width: max-content;
  padding: 7px 10px;
  color: var(--ink);
  border-radius: 999px;
  background: var(--sun);
  font-size: 12px;
  font-weight: 950;
}

.timeline-insights h3 {
  margin: 0;
  max-width: 10em;
  font-size: clamp(26px, 2.5vw, 38px);
  line-height: 1.08;
}

.insight-meter {
  display: grid;
  gap: 14px;
}

.meter-row {
  display: grid;
  gap: 8px;
}

.meter-row span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  font-weight: 950;
}

.meter-row b {
  color: white;
  font-size: 15px;
}

.meter-row i {
  display: block;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
}

.meter-row i::before {
  content: "";
  display: block;
  width: var(--level);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sun), #ffffff);
}

.insight-steps {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.insight-steps li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 11px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.insight-steps b {
  color: var(--sun);
  font-size: 13px;
}

.insight-steps span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  line-height: 1.55;
}

.insight-route {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.insight-route span {
  display: grid;
  place-items: center;
  min-height: 34px;
  color: var(--ink);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  font-weight: 950;
}

.demo-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}

.phase-card,
.demo-card,
.route-card,
.story-panel {
  position: relative;
  padding: 24px;
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.phase-card::before,
.demo-card::before,
.route-card::before,
.story-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint));
}

.phase-card::after,
.demo-card::after,
.route-card::after,
.story-panel::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 54px;
  height: 54px;
  border: 1px solid rgba(33, 23, 29, 0.09);
  border-radius: 50%;
  background:
    linear-gradient(90deg, rgba(33, 23, 29, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(33, 23, 29, 0.08) 1px, transparent 1px),
    rgba(255, 255, 255, 0.46);
  background-size: 9px 9px;
}

.phase-card:hover,
.demo-card:hover,
.route-card:hover,
.story-panel:hover,
.is-tilting {
  transform:
    translateY(-6px)
    rotateX(calc(var(--tilt-y, 0) * 1deg))
    rotateY(calc(var(--tilt-x, 0) * 1deg));
  border-color: rgba(255, 77, 109, 0.28);
  box-shadow: var(--shadow-lift);
}

.phase-card.active,
.story-panel.bright,
.route-card:not(.muted) {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 231, 238, 0.68)),
    var(--paper);
}

.phase-card span {
  color: var(--mint);
  font-size: 13px;
  font-weight: 950;
}

.role-shift {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 70px minmax(0, 1fr);
  align-items: stretch;
  gap: 0;
  max-width: none;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.08), transparent 46%, rgba(0, 169, 143, 0.08)),
    rgba(255, 255, 255, 0.58);
  box-shadow: 0 16px 44px rgba(70, 43, 56, 0.08);
  backdrop-filter: blur(10px);
}

.role-column {
  position: relative;
  min-width: 0;
  padding: 26px clamp(22px, 3vw, 34px);
}

.role-column.old {
  border-right: 1px solid rgba(33, 23, 29, 0.12);
}

.role-column.new {
  border-left: 1px solid rgba(33, 23, 29, 0.12);
}

.role-column span {
  color: var(--hot-dark);
  font-size: 13px;
  font-weight: 950;
}

.role-column.new span {
  color: var(--mint);
}

.role-column h3 {
  margin: 8px 0 22px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.05;
}

.role-column dl {
  display: grid;
  gap: 0;
  margin: 0;
}

.role-column dl div {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-top: 1px dashed rgba(33, 23, 29, 0.2);
}

.role-column dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 950;
}

.role-column dd {
  min-width: 0;
  margin: 0;
  color: var(--text);
  line-height: 1.65;
}

.shift-connector {
  display: grid;
  place-items: center;
  color: white;
  background:
    linear-gradient(180deg, var(--hot), var(--sun) 48%, var(--mint));
  font-size: 28px;
  font-weight: 950;
}

.partner-statement {
  position: relative;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: stretch;
  margin: 0;
  max-width: none;
  padding: 0;
  overflow: hidden;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-left: 0;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.12), rgba(255, 255, 255, 0.82) 34%, rgba(226, 248, 243, 0.74)),
    rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 46px rgba(70, 43, 56, 0.1);
  backdrop-filter: blur(12px);
}

.partner-statement::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: linear-gradient(180deg, var(--hot), var(--sun), var(--mint));
}

.partner-statement::after {
  content: "WORK PARTNER";
  position: absolute;
  right: clamp(18px, 3vw, 38px);
  bottom: -8px;
  color: rgba(33, 23, 29, 0.045);
  font-size: clamp(42px, 7vw, 112px);
  font-weight: 950;
  line-height: 0.8;
  white-space: nowrap;
}

.partner-statement span {
  position: relative;
  z-index: 1;
  align-self: center;
  justify-self: center;
  display: inline-grid;
  place-items: center;
  min-width: 92px;
  min-height: 38px;
  padding: 9px 14px;
  color: white;
  border-right: 1px solid rgba(33, 23, 29, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background:
    linear-gradient(135deg, var(--hot), #f06aa4 52%, var(--lilac));
  box-shadow:
    0 14px 30px rgba(255, 77, 109, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.42);
  font-size: 14px;
  font-weight: 950;
  letter-spacing: 0.12em;
  writing-mode: horizontal-tb;
}

.partner-statement span::before {
  content: "";
  position: absolute;
  inset: -7px;
  border: 1px solid rgba(255, 77, 109, 0.18);
  border-radius: inherit;
}

.partner-statement span::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.72);
}

.partner-statement p {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 24em;
  padding: clamp(28px, 4vw, 48px) clamp(28px, 5vw, 64px) clamp(36px, 4vw, 54px) 0;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.18;
  font-weight: 950;
}

.partner-statement mark {
  position: relative;
  display: inline;
  padding: 0 0.08em;
  color: var(--ink);
  background: linear-gradient(180deg, transparent 56%, rgba(255, 200, 74, 0.48) 56%);
}

.quote {
  position: relative;
  margin: 0;
  max-width: 980px;
  padding: 30px 32px;
  color: var(--ink);
  border: 2px solid rgba(255, 77, 109, 0.16);
  border-left: 10px solid var(--hot);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #fff, var(--pink-soft));
  box-shadow: var(--shadow);
  font-size: clamp(24px, 3.1vw, 44px);
  line-height: 1.2;
}

.quote::after {
  content: "save";
  position: absolute;
  top: -16px;
  right: 26px;
  padding: 8px 12px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.08);
  border-radius: 999px;
  background: var(--sun);
  font-size: 13px;
  font-weight: 950;
  transform: rotate(4deg);
}

.story-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 410px);
  gap: clamp(22px, 4vw, 56px);
  align-items: end;
}

.story-title-pack {
  max-width: 820px;
}

.story-title-pack h2 {
  max-width: 8em;
  margin-bottom: 16px;
  font-size: clamp(42px, 6vw, 88px);
  line-height: 0.94;
}

.story-thesis {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px 24px 24px;
  color: var(--ink);
  border-left: 8px solid var(--hot);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.1), transparent 54%),
    rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 36px rgba(70, 43, 56, 0.08);
}

.story-thesis::after {
  content: "WHY AI";
  position: absolute;
  right: 8px;
  bottom: -8px;
  color: rgba(33, 23, 29, 0.055);
  font-size: 56px;
  line-height: 1;
  font-weight: 950;
}

.story-thesis span {
  width: fit-content;
  padding: 7px 10px;
  color: var(--hot-dark);
  border: 1px solid rgba(255, 77, 109, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  font-weight: 950;
}

.story-thesis strong {
  position: relative;
  z-index: 1;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1;
}

.story-thesis p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

.story-map {
  position: relative;
  min-height: clamp(460px, 48vw, 610px);
  overflow: hidden;
  border-top: 1px solid rgba(33, 23, 29, 0.12);
  border-bottom: 1px solid rgba(33, 23, 29, 0.12);
  background:
    radial-gradient(circle at 50% 48%, rgba(49, 92, 255, 0.1), transparent 32%),
    linear-gradient(90deg, rgba(255, 77, 109, 0.06), rgba(255, 200, 74, 0.08) 46%, rgba(32, 201, 151, 0.08)),
    linear-gradient(90deg, rgba(33, 23, 29, 0.055) 1px, transparent 1px),
    linear-gradient(rgba(33, 23, 29, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 40px 40px, 40px 40px;
}

.story-map canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-node {
  position: absolute;
  z-index: 1;
  display: grid;
  gap: 7px;
  width: min(260px, 24vw);
  min-height: 104px;
  padding: 16px 18px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.14);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 16px 34px rgba(70, 43, 56, 0.1);
  backdrop-filter: blur(12px);
  transform: translateX(var(--map-shift-x, 0));
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.map-node:hover {
  transform: translateX(var(--map-shift-x, 0)) translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.map-node b {
  font-size: clamp(18px, 1.7vw, 24px);
  line-height: 1.12;
}

.map-node span {
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
  font-weight: 650;
}

.map-design {
  left: 4%;
  top: 18%;
  border-left: 8px solid var(--hot);
}

.map-pressure {
  left: 31%;
  top: 8%;
  border-top: 8px solid var(--sun);
}

.map-ai {
  left: 40%;
  top: 38%;
  --map-shift-x: 0;
  width: min(300px, 28vw);
  min-height: 132px;
  border: 2px solid rgba(49, 92, 255, 0.28);
  background: rgba(242, 246, 255, 0.9);
}

.map-method {
  left: 25%;
  bottom: 9%;
  border-bottom: 8px solid var(--blue);
}

.map-now {
  right: 5%;
  top: 25%;
  border-right: 8px solid var(--mint);
}

.story-evidence {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.95fr;
  gap: 22px;
  align-items: stretch;
}

.experience-ledger,
.turning-axis,
.output-wall {
  position: relative;
  min-width: 0;
}

.experience-ledger {
  padding: 8px 0 0;
}

.experience-ledger h3 {
  max-width: 620px;
  margin: 8px 0 20px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.05;
}

.experience-ledger dl {
  display: grid;
  margin: 0;
  border-top: 2px solid var(--ink);
}

.experience-ledger dl div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(33, 23, 29, 0.14);
}

.experience-ledger dt {
  color: var(--hot-dark);
  font-size: 14px;
  font-weight: 950;
}

.experience-ledger dd {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

.turning-axis {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  padding: 4px 0;
}

.axis-mark {
  width: fit-content;
  padding: 8px 12px;
  color: white;
  border-radius: 999px;
  background: var(--ink);
  font-size: 13px;
  font-weight: 950;
}

.axis-mark.new {
  justify-self: end;
  background: var(--blue);
}

.turning-axis ol {
  position: relative;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
}

.turning-axis ol::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--hot), var(--sun), var(--blue), var(--mint));
}

.turning-axis li {
  position: relative;
  padding: 13px 14px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.66);
}

.turning-axis li::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 20px;
  width: 13px;
  height: 13px;
  border: 3px solid white;
  border-radius: 999px;
  background: var(--blue);
  box-shadow: 0 0 0 1px rgba(49, 92, 255, 0.28);
}

.turning-axis li span {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 950;
}

.turning-axis li p {
  margin: 0;
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

.output-wall {
  display: grid;
  gap: 16px;
}

.output-meter {
  display: grid;
  gap: 8px;
  padding: 20px;
  color: var(--ink);
  border: 1px solid rgba(32, 201, 151, 0.22);
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(32, 201, 151, 0.14), rgba(255, 255, 255, 0.78)),
    var(--paper);
}

.output-meter strong {
  color: var(--mint);
  font-size: clamp(38px, 4.2vw, 62px);
  line-height: 0.9;
}

.output-meter span {
  color: var(--text);
  font-weight: 850;
}

.output-wall ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.output-wall li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid rgba(33, 23, 29, 0.12);
}

.output-wall li b {
  color: var(--blue);
  font-size: 16px;
}

.output-wall li span {
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

.tag-row span,
.output-tags b,
.closing-grid span {
  display: inline-flex;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 999px;
  padding: 8px 11px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
}

.coding-product-map {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(360px, 1.35fr) minmax(240px, 0.9fr);
  gap: 16px;
  align-items: stretch;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(0, 169, 143, 0.055) 1px, transparent 1px),
    rgba(255, 255, 255, 0.72);
  background-size: 30px 30px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.coding-product-map::before {
  content: "idea -> runnable prototype";
  position: absolute;
  top: -12px;
  right: 22px;
  padding: 6px 12px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: 999px;
  background: var(--sun);
  box-shadow: 0 12px 28px rgba(70, 43, 56, 0.12);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.coding-product-map::after {
  content: "";
  position: absolute;
  left: calc(22% - 12px);
  right: calc(22% - 12px);
  top: 50%;
  z-index: 0;
  height: 2px;
  border-top: 2px dashed rgba(49, 92, 255, 0.24);
  pointer-events: none;
}

.idea-terminal,
.prototype-preview {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border: 1px solid rgba(33, 23, 29, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 16px 34px rgba(70, 43, 56, 0.1);
}

.idea-terminal {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 330px;
  color: white;
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 200, 74, 0.42), transparent 30%),
    linear-gradient(145deg, #21171d 0%, #302b34 56%, #315cff 145%);
}

.terminal-top,
.preview-chrome {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 18px;
}

.terminal-top span,
.preview-chrome span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--hot);
}

.terminal-top span:nth-child(2),
.preview-chrome span:nth-child(2) {
  background: var(--sun);
}

.terminal-top span:nth-child(3),
.preview-chrome span:nth-child(3) {
  background: var(--mint);
}

.terminal-top b,
.preview-chrome b {
  margin-left: auto;
  color: inherit;
  font-size: 12px;
  font-weight: 950;
}

.idea-terminal p {
  margin: 0;
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.28;
  font-weight: 950;
}

.terminal-cursor {
  width: fit-content;
  max-width: 100%;
  margin-top: 24px;
  padding: 10px 12px;
  color: #21171d;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  font-size: 13px;
  font-weight: 900;
}

.product-pipeline {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  align-content: stretch;
}

.product-pipeline::before {
  content: "";
  position: absolute;
  top: 52px;
  left: 9%;
  right: 9%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint), var(--blue));
  box-shadow: 0 8px 22px rgba(49, 92, 255, 0.18);
}

.pipeline-node {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: 18px 14px;
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 12px 28px rgba(70, 43, 56, 0.08);
}

.node-icon,
.route-icon {
  display: inline-block;
  flex: 0 0 auto;
  box-sizing: border-box;
  border: 2px solid currentColor;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--ink);
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.node-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  stroke-width: 1.8;
}

.pipeline-node span {
  display: grid;
  place-items: center;
  width: 44px;
  aspect-ratio: 1;
  margin-bottom: auto;
  color: white;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 12px 24px rgba(70, 43, 56, 0.18);
  font-weight: 950;
}

.pipeline-node h3 {
  margin-top: 24px;
  margin-bottom: 10px;
  font-size: clamp(19px, 1.55vw, 26px);
  line-height: 1.08;
}

.pipeline-node p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.pipeline-node.output {
  color: white;
  background:
    linear-gradient(145deg, rgba(255, 77, 109, 0.95), rgba(49, 92, 255, 0.94));
}

.pipeline-node.output span {
  color: var(--ink);
  background: var(--sun);
}

.pipeline-node.output p {
  color: rgba(255, 255, 255, 0.84);
}

.prototype-preview {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  background:
    linear-gradient(180deg, rgba(234, 240, 255, 0.96), rgba(255, 255, 255, 0.95));
}

.preview-hero {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 15px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background: #21171d;
  color: white;
}

.preview-hero i {
  width: 64px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    linear-gradient(135deg, var(--sun), var(--hot) 48%, var(--blue));
}

.preview-hero strong,
.preview-hero small {
  display: block;
}

.preview-hero strong {
  font-size: 24px;
  line-height: 1;
}

.preview-hero small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0;
}

.preview-grid span {
  min-height: 62px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 200, 74, 0.32), transparent),
    #ffffff;
}

.preview-grid span:first-child {
  grid-column: 1 / -1;
  background:
    linear-gradient(90deg, var(--mint) 0 24%, transparent 24%),
    linear-gradient(135deg, rgba(49, 92, 255, 0.16), rgba(255, 255, 255, 0.96));
}

.prototype-preview button {
  width: 100%;
  min-height: 46px;
  margin-top: auto;
  color: white;
  border: 0;
  border-radius: var(--radius);
  background: var(--ink);
  box-shadow: 0 14px 26px rgba(33, 23, 29, 0.16);
  cursor: default;
  font-weight: 950;
}

.threshold-shift {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr) 54px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.86), rgba(226, 248, 243, 0.8)),
    #ffffff;
  box-shadow: 0 16px 38px rgba(70, 43, 56, 0.09);
}

.threshold-shift span {
  display: inline-grid;
  place-items: center;
  min-height: 40px;
  padding: 0 13px;
  color: white;
  border-radius: 999px;
  background: var(--ink);
  font-size: 13px;
  font-weight: 950;
}

.threshold-shift strong {
  color: var(--ink);
  font-size: clamp(18px, 1.7vw, 26px);
  line-height: 1.2;
}

.threshold-shift i {
  position: relative;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint), var(--blue));
}

.threshold-shift i::after {
  content: "";
  position: absolute;
  right: -2px;
  top: 50%;
  width: 12px;
  height: 12px;
  border-top: 4px solid var(--blue);
  border-right: 4px solid var(--blue);
  transform: translateY(-50%) rotate(45deg);
}

.coding-route-split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 16px;
  margin-top: 18px;
}

.route-track {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.route-track.traditional {
  opacity: 0.78;
  filter: saturate(0.72);
}

.track-label {
  width: fit-content;
  margin-bottom: 14px;
  padding: 7px 10px;
  color: var(--ink);
  border-radius: 999px;
  background: var(--cream);
  font-size: 13px;
  font-weight: 950;
}

.route-track.ai .track-label {
  color: white;
  background: var(--blue);
}

.route-track ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: route-step;
}

.route-track li {
  position: relative;
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 76px;
  padding: 12px 10px 10px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  font-weight: 950;
  line-height: 1.25;
}

.route-track li::before {
  counter-increment: route-step;
  content: counter(route-step);
  position: absolute;
  top: 10px;
  right: 10px;
  color: var(--hot);
  font-size: 12px;
}

.route-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: var(--soft);
  background: rgba(255, 255, 255, 0.62);
  stroke-width: 1.9;
}

.route-track.ai li {
  background:
    linear-gradient(135deg, rgba(0, 169, 143, 0.12), rgba(49, 92, 255, 0.08)),
    rgba(255, 255, 255, 0.9);
}

.route-track.ai .route-icon {
  color: var(--blue);
  background: white;
}

.productization-engine {
  position: relative;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(260px, 0.9fr) minmax(220px, 1fr);
  gap: 22px;
  align-items: center;
  margin-top: 18px;
  padding: 26px;
  overflow: hidden;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 77, 109, 0.08), transparent 22%, transparent 78%, rgba(0, 169, 143, 0.1)),
    repeating-linear-gradient(90deg, rgba(33, 23, 29, 0.035) 0 1px, transparent 1px 28px),
    rgba(255, 255, 255, 0.86);
  box-shadow: 0 20px 50px rgba(70, 43, 56, 0.1);
}

.productization-engine::before,
.productization-engine::after {
  content: "";
  position: absolute;
  top: 50%;
  z-index: 0;
  width: 15%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(49, 92, 255, 0.32), transparent);
}

.productization-engine::before {
  left: 31%;
}

.productization-engine::after {
  right: 31%;
}

.engine-inputs,
.engine-outputs {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.engine-inputs::before,
.engine-outputs::before {
  grid-column: 1 / -1;
  width: fit-content;
  padding: 6px 9px;
  border: 1px solid rgba(33, 23, 29, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--soft);
  font-size: 12px;
  font-weight: 950;
}

.engine-inputs::before {
  content: "输入材料";
}

.engine-outputs::before {
  content: "输出形态";
  justify-self: end;
}

.engine-inputs span,
.engine-outputs span {
  display: grid;
  place-items: center;
  min-height: 62px;
  padding: 12px;
  border: 1px solid rgba(33, 23, 29, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-weight: 950;
  text-align: center;
  box-shadow: 0 10px 24px rgba(70, 43, 56, 0.05);
}

.engine-inputs span {
  color: #5f5861;
  background:
    linear-gradient(135deg, rgba(255, 231, 238, 0.34), transparent),
    rgba(255, 255, 255, 0.62);
}

.engine-core {
  position: relative;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 10px;
  min-height: 168px;
  padding: 24px 22px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: var(--radius);
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(120deg, var(--hot), var(--sun), var(--mint), var(--blue)) border-box;
  box-shadow: 0 18px 42px rgba(49, 92, 255, 0.12);
  text-align: center;
}

.engine-core::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 18px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint), var(--blue));
}

.engine-core small,
.engine-core strong {
  position: relative;
  z-index: 1;
}

.engine-core small {
  padding: 6px 9px;
  color: var(--blue);
  border-radius: 999px;
  background: var(--blue-soft);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.engine-core strong {
  max-width: 8.5em;
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.12;
}

.demo-output-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.demo-output-map article {
  position: relative;
  min-height: 150px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid rgba(33, 23, 29, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 16px 36px rgba(70, 43, 56, 0.09);
}

.demo-output-map article::before {
  content: "";
  position: absolute;
  inset: auto 18px 18px 18px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint), var(--blue));
}

.demo-output-map span {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 7px 10px;
  color: white;
  border-radius: 999px;
  background: var(--ink);
  font-size: 12px;
  font-weight: 950;
}

.demo-output-map strong {
  display: block;
  color: var(--ink);
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.08;
}

.demo-output-map p {
  margin: 8px 0 16px;
  color: var(--muted);
  font-weight: 850;
}

.product-definition {
  position: relative;
  display: grid;
  grid-template-columns: minmax(190px, max-content) minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  margin-top: 18px;
  padding: 22px 26px 24px;
  overflow: hidden;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(255, 231, 238, 0.72), rgba(255, 255, 255, 0.92) 34%, rgba(234, 240, 255, 0.82)),
    #ffffff;
  box-shadow: 0 18px 42px rgba(70, 43, 56, 0.1);
}

.product-definition::before {
  content: "";
  position: absolute;
  left: 26px;
  right: 26px;
  bottom: 0;
  height: 6px;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, var(--hot), var(--sun), var(--mint), var(--blue));
}

.product-definition span {
  display: inline-grid;
  place-items: center;
  align-items: center;
  min-height: 58px;
  padding: 0 16px;
  color: white;
  border-radius: var(--radius);
  background: var(--ink);
  box-shadow: 0 12px 26px rgba(33, 23, 29, 0.14);
  font-weight: 950;
}

.product-definition p {
  margin: 0;
  color: var(--ink);
  font-size: clamp(22px, 2.25vw, 32px);
  line-height: 1.28;
  font-weight: 950;
}

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

.route-card.muted {
  background: rgba(255, 255, 255, 0.64);
}

.route-card ol {
  margin: 0;
  padding-left: 22px;
}

.definition-card {
  max-width: 980px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(226, 248, 243, 0.9), rgba(255, 255, 255, 0.9) 52%, rgba(234, 240, 255, 0.9));
}

.definition-card > p {
  color: var(--ink);
  font-size: clamp(24px, 2.8vw, 38px);
  line-height: 1.2;
}

.fake-prompt {
  margin-top: 24px;
  padding: 18px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(90deg, rgba(49, 92, 255, 0.07) 0 1px, transparent 1px 18px),
    #ffffff;
}

.fake-prompt span {
  display: block;
  color: var(--blue);
  font-weight: 950;
  margin-bottom: 8px;
}

.output-tags,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.demo-card {
  min-height: 390px;
  display: flex;
  flex-direction: column;
}

.demo-card:nth-child(2) {
  transform: translateY(28px);
}

.demo-card:nth-child(3) {
  transform: translateY(-12px);
}

.demo-card:hover:nth-child(2),
.demo-card:hover:nth-child(3) {
  transform: translateY(-6px);
}

.demo-card p {
  flex: 1;
}

.demo-card .mini-note {
  flex: 0;
  margin-top: -4px;
  color: var(--blue);
  font-size: 13px;
}

.demo-card button {
  align-self: flex-start;
  margin-top: 24px;
}

.demo-showcase {
  isolation: isolate;
  overflow: hidden;
}

.demo-showcase::after {
  content: "DEMO";
  position: absolute;
  right: clamp(10px, 4vw, 72px);
  top: clamp(70px, 9vw, 126px);
  z-index: 0;
  color: rgba(33, 23, 29, 0.045);
  font-size: clamp(120px, 20vw, 310px);
  line-height: 0.8;
  font-weight: 950;
  pointer-events: none;
}

.demo-showcase .section-head::after {
  display: none;
}

.demo-showcase-head {
  z-index: 1;
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  gap: 16px clamp(20px, 4vw, 58px);
  align-items: end;
}

.demo-showcase-head .eyebrow {
  grid-column: 1 / -1;
  width: max-content;
}

.demo-showcase-head h2 {
  grid-column: 1 / -1;
  max-width: 1120px;
  margin: 0 0 6px;
  text-wrap: balance;
}

.demo-showcase-head .section-note {
  max-width: 900px;
  margin: 0;
}

.demo-showcase-route {
  justify-self: stretch;
  position: relative;
  display: grid;
  gap: 0;
  padding: 18px 20px 20px;
  color: var(--ink);
  border: 1px solid rgba(33, 23, 29, 0.14);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 77, 109, 0.12), rgba(255, 255, 255, 0.92) 42%, rgba(226, 248, 243, 0.86)),
    rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 46px rgba(70, 43, 56, 0.12);
}

.demo-showcase-route::before {
  content: "同一套方法";
  width: max-content;
  padding: 7px 10px;
  color: white;
  border-radius: 999px;
  background: var(--ink);
  font-size: 12px;
  font-weight: 950;
}

.demo-showcase-route span {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 48px;
  color: var(--ink);
  font-size: clamp(17px, 1.45vw, 22px);
  line-height: 1.2;
  font-weight: 950;
}

.demo-showcase-route span::before {
  content: "";
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: white;
  border-radius: var(--radius);
  background: var(--ink);
  box-shadow: 0 10px 22px rgba(70, 43, 56, 0.12);
  font-size: 12px;
  line-height: 1;
  font-weight: 950;
}

.demo-showcase-route span::after {
  content: "";
  position: absolute;
  left: 16px;
  top: 39px;
  bottom: -9px;
  width: 2px;
  background: rgba(33, 23, 29, 0.12);
}

.demo-showcase-route span:last-child::after {
  display: none;
}

.demo-showcase-route span:nth-child(1) {
  color: var(--hot-dark);
}

.demo-showcase-route span:nth-child(1)::before {
  content: "01";
  background: var(--hot);
}

.demo-showcase-route span:nth-child(1)::after {
  background: linear-gradient(180deg, var(--hot), rgba(49, 92, 255, 0.42));
}

.demo-showcase-route span:nth-child(2) {
  color: var(--blue);
}

.demo-showcase-route span:nth-child(2)::before {
  content: "02";
  background: var(--blue);
}

.demo-showcase-route span:nth-child(2)::after {
  background: linear-gradient(180deg, var(--blue), rgba(0, 169, 143, 0.42));
}

.demo-showcase-route span:nth-child(3) {
  color: var(--mint);
}

.demo-showcase-route span:nth-child(3)::before {
  content: "03";
  background: var(--mint);
}

.demo-showcase .demo-grid {
  position: relative;
  z-index: 1;
  gap: clamp(16px, 2vw, 26px);
  margin-top: 8px;
  perspective: 1200px;
}

.demo-showcase .demo-card {
  min-height: 430px;
  padding: clamp(22px, 2.4vw, 34px);
  border-color: rgba(33, 23, 29, 0.16);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(255, 248, 244, 0.9) 58%, rgba(226, 248, 243, 0.72)),
    var(--paper);
  box-shadow: 0 22px 60px rgba(70, 43, 56, 0.16);
}

.demo-showcase .demo-card::before {
  inset: 0 auto 0 0;
  width: 8px;
  height: auto;
  background: var(--hot);
}

.demo-showcase .demo-card:nth-child(2)::before {
  background: var(--blue);
}

.demo-showcase .demo-card:nth-child(3)::before {
  background: var(--mint);
}

.demo-showcase .demo-card::after {
  right: 22px;
  bottom: 20px;
  width: 86px;
  height: 86px;
  opacity: 0.74;
  border-radius: 0;
  transform: rotate(-7deg);
}

.demo-showcase .demo-card:nth-child(2) {
  transform: translateY(34px) rotate(1.1deg);
}

.demo-showcase .demo-card:nth-child(3) {
  transform: translateY(-16px) rotate(-1.1deg);
}

.demo-showcase .demo-card:hover,
.demo-showcase .demo-card:hover:nth-child(2),
.demo-showcase .demo-card:hover:nth-child(3) {
  transform:
    translateY(-10px)
    rotateX(calc(var(--tilt-y, 0) * 1deg))
    rotateY(calc(var(--tilt-x, 0) * 1deg));
}

.demo-card-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 30px;
}

.demo-number {
  color: var(--ink);
  font-size: clamp(56px, 6vw, 94px);
  line-height: 0.78;
  font-weight: 950;
}

.demo-showcase .demo-index {
  max-width: 150px;
  padding: 8px 10px;
  color: var(--hot-dark);
  border: 1px solid rgba(255, 77, 109, 0.2);
  border-radius: 999px;
  background: rgba(255, 231, 238, 0.76);
  text-align: right;
  font-size: 12px;
  font-weight: 950;
}

.demo-showcase .demo-card:nth-child(2) .demo-index {
  color: var(--blue);
  border-color: rgba(49, 92, 255, 0.2);
  background: rgba(234, 240, 255, 0.82);
}

.demo-showcase .demo-card:nth-child(3) .demo-index {
  color: var(--mint);
  border-color: rgba(0, 169, 143, 0.2);
  background: rgba(226, 248, 243, 0.84);
}

.demo-showcase .demo-card h3 {
  max-width: 8em;
  margin-bottom: 18px;
  font-size: clamp(31px, 3vw, 46px);
  line-height: 0.98;
}

.demo-showcase .demo-card p {
  flex: 0;
  max-width: 29em;
  margin-top: 0;
  color: #5a4d57;
  font-size: 17px;
}

.demo-showcase .demo-card .mini-note {
  margin-top: 4px;
  color: var(--blue);
  font-size: 13px;
}

.demo-showcase .tag-row {
  margin-top: auto;
  padding-top: 28px;
}

.demo-showcase .tag-row span {
  background: rgba(255, 255, 255, 0.84);
}

.demo-showcase .demo-card button {
  margin-top: 24px;
}

.logic-board {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 18px;
  background: rgba(255, 255, 255, 0.68);
}

.logic-item {
  padding: 22px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: var(--radius);
  background: white;
}

.logic-item span {
  color: var(--muted);
}

.logic-item strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.1;
}

.flow-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--ink);
  font-weight: 950;
}

.flow-line span {
  padding: 12px 15px;
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 999px;
  background: white;
  box-shadow: 0 12px 28px rgba(70, 43, 56, 0.1);
}

.flow-line i {
  width: 42px;
  height: 2px;
  background: linear-gradient(90deg, var(--hot), var(--sun));
}

.wrapup {
  background:
    repeating-linear-gradient(135deg, rgba(255, 77, 109, 0.12) 0 1px, transparent 1px 16px),
    linear-gradient(180deg, #fff, #fff1f5 64%, #f5fbff);
}

.wrapup-copy {
  max-width: 980px;
}

.wrapup-copy p:not(.eyebrow),
.final-line {
  max-width: 920px;
  font-size: clamp(18px, 2.1vw, 29px);
}

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

.final-line {
  color: var(--ink);
}

.demo-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  padding: 28px;
  background: rgba(33, 23, 29, 0.42);
  backdrop-filter: blur(16px);
}

.demo-overlay.is-open {
  display: grid;
  place-items: center;
}

.demo-window {
  width: min(1180px, 96vw);
  height: min(760px, 90vh);
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 42px 120px rgba(33, 23, 29, 0.34);
}

.demo-overlay.is-maximized .demo-window {
  width: calc(100vw - 24px);
  height: calc(100vh - 24px);
}

.window-bar {
  margin: 0;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, #fff, var(--pink-soft), var(--blue-soft));
}

.window-dots {
  display: flex;
  gap: 7px;
}

.window-title {
  flex: 1;
}

.window-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.window-actions button {
  border: 1px solid rgba(33, 23, 29, 0.1);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  padding: 8px 10px;
  cursor: pointer;
}

.window-actions button:hover,
.window-actions button.is-active {
  border-color: rgba(255, 77, 109, 0.28);
  color: var(--hot-dark);
  background: var(--pink-soft);
}

.icon-button {
  min-width: 36px;
}

.window-body {
  min-height: 0;
  display: grid;
  grid-template-columns: 318px 1fr;
}

.demo-brief {
  padding: 24px;
  border-right: 1px solid var(--line);
  background: #fffaf7;
  overflow: auto;
}

.demo-brief h3 {
  margin-top: 12px;
}

.demo-brief ol {
  padding-left: 22px;
  margin-top: 22px;
}

.watch-point {
  margin-top: 18px;
  padding: 13px;
  color: var(--ink);
  border: 1px solid rgba(0, 169, 143, 0.22);
  border-radius: var(--radius);
  background: var(--mint-soft);
  line-height: 1.6;
}

.iframe-shell {
  min-width: 0;
  min-height: 0;
  background: #f1f4f8;
}

.iframe-shell iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: white;
}

.reveal {
  opacity: 0;
  transform: translateY(30px) scale(0.98);
  transition: opacity 620ms ease, transform 620ms ease;
  transition-delay: var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@media (max-width: 980px) {
  .topnav,
  .progress-rail {
    display: none;
  }

  .topbar {
    border-radius: 18px;
  }

  .section {
    padding-left: 26px;
    padding-right: 26px;
  }

  .cover,
  .hero,
  .story-hero,
  .story-evidence,
  .phase-grid,
  .shift-grid,
  .timeline-board,
  .role-shift,
  .coding-product-map,
  .coding-route-split,
  .threshold-shift,
  .productization-engine,
  .demo-output-map,
  .product-definition,
  .route-compare,
  .demo-grid,
  .logic-board,
  .closing-grid,
  .window-body {
    grid-template-columns: 1fr;
  }

  .command-board {
    width: min(460px, 100%);
    min-height: auto;
    justify-self: center;
  }

  .cover-stage {
    width: min(520px, 100%);
    min-height: auto;
    justify-self: center;
  }

  .timeline-flow::before {
    left: calc(8px + 96px + 31px);
  }

  .timeline-item {
    grid-template-columns: 96px 32px minmax(0, 1fr);
  }

  .timeline-insights {
    min-height: auto;
  }

  .role-shift {
    gap: 0;
  }

  .role-column.old,
  .role-column.new {
    border-left: 0;
    border-right: 0;
  }

  .role-column.new {
    border-top: 1px solid rgba(33, 23, 29, 0.12);
  }

  .shift-connector {
    min-height: 50px;
  }

  .demo-wall {
    min-height: 430px;
  }

  .wall-card {
    width: min(210px, 52%);
  }

  .wall-card-resume {
    top: 58px;
    left: 10px;
  }

  .wall-card-portfolio {
    top: 46px;
    right: 8px;
  }

  .wall-card-travel {
    left: 22%;
    bottom: 26px;
  }

  .story-map {
    min-height: 720px;
  }

  .map-node {
    width: min(320px, 42vw);
  }

  .map-design {
    left: 4%;
    top: 8%;
  }

  .map-pressure {
    left: auto;
    right: 4%;
    top: 18%;
  }

  .map-ai {
    left: 50%;
    top: 42%;
    --map-shift-x: -50%;
    width: min(340px, 48vw);
  }

  .map-method {
    left: 6%;
    bottom: 8%;
  }

  .map-now {
    right: 4%;
    top: auto;
    bottom: 12%;
  }

  .demo-showcase-head {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .demo-showcase-head h2 {
    max-width: 980px;
  }

  .demo-showcase-route {
    max-width: 520px;
  }

  .demo-card:nth-child(2),
  .demo-card:nth-child(3) {
    transform: none;
  }

  .demo-window {
    height: calc(100vh - 28px);
  }

  .demo-brief {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    max-height: 260px;
  }
}

@media (max-width: 640px) {
  .topbar {
    top: 10px;
    padding: 9px;
  }

  .brand span:last-child {
    max-width: 54vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .section {
    padding-top: 94px;
    padding-bottom: 64px;
  }

  .section::before {
    inset: 10px;
  }

  .hero-copy::before {
    top: -36px;
  }

  h1 {
    font-size: 56px;
  }

  .cover-copy h1 {
    max-width: 7em;
    font-size: 48px;
    line-height: 0.92;
  }

  .cover-copy .lead {
    max-width: 18em;
  }

  h2 {
    font-size: 36px;
  }

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

  .story-title-pack h2 {
    max-width: 9em;
    font-size: 42px;
  }

  .story-thesis {
    padding: 18px;
  }

  .story-map {
    min-height: 880px;
  }

  .map-node {
    width: calc(100% - 36px);
    min-height: auto;
    left: 18px;
    right: auto;
    --map-shift-x: 0;
  }

  .map-design {
    top: 28px;
  }

  .map-pressure {
    top: 178px;
  }

  .map-ai {
    top: 340px;
    left: 18px;
    width: calc(100% - 36px);
  }

  .map-method {
    top: 526px;
    bottom: auto;
  }

  .map-now {
    top: 700px;
    bottom: auto;
  }

  .experience-ledger dl div,
  .output-wall li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .command-board {
    transform: rotate(0deg);
  }

  .cover-stage {
    transform: rotate(0deg);
    padding: 18px;
    gap: 12px;
  }

  .partner-human,
  .partner-ai {
    transform: none;
  }

  .partner-card {
    min-height: auto;
    padding: 18px;
  }

  .partner-card strong {
    font-size: 30px;
  }

  .timeline-board {
    padding: 12px;
  }

  .timeline-flow::before {
    left: 25px;
    top: 74px;
    bottom: 74px;
  }

  .timeline-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    padding: 16px 0;
  }

  .timeline-year {
    grid-column: 2;
    justify-self: start;
    margin-bottom: -2px;
    font-size: 18px;
  }

  .timeline-dot {
    grid-row: 1 / span 2;
    justify-self: center;
    margin-top: 4px;
  }

  .timeline-card {
    grid-column: 2;
    padding: 18px;
  }

  .timeline-insights {
    padding: 20px;
  }

  .timeline-insights h3 {
    max-width: none;
  }

  .role-column {
    padding: 22px 18px;
  }

  .role-column dl div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .partner-statement {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .partner-statement span {
    width: max-content;
  }

  .partner-statement p {
    padding: 0;
  }

  .coding-product-map {
    padding: 12px;
  }

  .product-pipeline,
  .route-track ol,
  .engine-inputs,
  .engine-outputs {
    grid-template-columns: 1fr;
  }

  .product-pipeline::before {
    top: 30px;
    bottom: 30px;
    left: 34px;
    right: auto;
    width: 6px;
    height: auto;
    background: linear-gradient(180deg, var(--hot), var(--sun), var(--mint), var(--blue));
  }

  .pipeline-node {
    min-height: auto;
    padding-left: 74px;
  }

  .pipeline-node span {
    position: absolute;
    top: 18px;
    left: 16px;
    margin-bottom: 0;
  }

  .pipeline-node h3 {
    margin-top: 0;
  }

  .idea-terminal,
  .prototype-preview {
    min-height: auto;
  }

  .product-definition {
    gap: 12px;
  }

  .threshold-shift {
    gap: 10px;
  }

  .threshold-shift i {
    width: 52px;
  }

  .productization-engine {
    padding: 14px;
  }

  .productization-engine::before,
  .productization-engine::after {
    display: none;
  }

  .engine-core {
    width: 100%;
    min-height: 148px;
    aspect-ratio: auto;
  }

  .demo-output-map article {
    min-height: 132px;
  }

  .demo-wall {
    min-height: 520px;
  }

  .wall-card {
    width: min(230px, 74%);
  }

  .wall-card-resume {
    top: 58px;
    left: 4px;
  }

  .wall-card-portfolio {
    top: 188px;
    right: 2px;
  }

  .wall-card-travel {
    left: 8px;
    bottom: 24px;
  }

  .demo-showcase::after {
    top: 92px;
    right: -18px;
    font-size: 116px;
  }

  .demo-showcase .demo-card {
    min-height: auto;
  }

  .demo-showcase-head h2 {
    line-height: 1;
  }

  .demo-showcase-route {
    max-width: none;
    padding: 18px;
  }

  .demo-showcase-route span {
    font-size: 19px;
  }

  .demo-card-top {
    margin-bottom: 22px;
  }

  .demo-number {
    font-size: 58px;
  }

  .demo-showcase .demo-card h3 {
    max-width: none;
    font-size: 34px;
  }

  .demo-showcase .tag-row {
    padding-top: 12px;
  }

  .demo-overlay {
    padding: 8px;
  }

  .window-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}