:root {
  --paper: #f4f0e8;
  --paper-deep: #e9e2d7;
  --card: #fbfaf7;
  --ink: #171715;
  --muted: #77736d;
  --line: rgba(23, 23, 21, 0.12);
  --line-strong: rgba(23, 23, 21, 0.22);
  --accent: #e8774d;
  --accent-deep: #c85c35;
  --teal: #6db4ab;
  --shadow: 0 18px 48px rgba(63, 50, 34, 0.08);
  --shadow-soft: 0 8px 22px rgba(63, 50, 34, 0.06);
  --radius-lg: 28px;
  --radius-md: 18px;
  --content: 1180px;
  --ease: cubic-bezier(0.22, 0.75, 0.28, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.34;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='.08'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

img,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

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

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

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

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

h1,
h2,
h3 {
  font-family: "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "STSong", serif;
  font-weight: 500;
  letter-spacing: -0.045em;
  text-wrap: pretty;
}

p {
  text-wrap: pretty;
}

.topbar {
  position: fixed;
  z-index: 20;
  top: 16px;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(calc(100% - 40px), var(--content));
  min-height: 58px;
  padding: 9px 12px 9px 18px;
  border: 1px solid rgba(23, 23, 21, 0.1);
  border-radius: 999px;
  background: rgba(251, 250, 247, 0.82);
  box-shadow: 0 10px 26px rgba(63, 50, 34, 0.07);
  transform: translateX(-50%);
  backdrop-filter: blur(18px) saturate(1.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: max-content;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand em {
  color: var(--muted);
  font-style: normal;
  font-weight: 450;
}

.nav {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(244, 240, 232, 0.68);
}

.nav a {
  padding: 6px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.nav a:hover {
  color: var(--ink);
  background: var(--card);
}

.nav a:active {
  transform: scale(0.96);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: max-content;
  padding: 7px 12px;
  border-radius: 999px;
  color: #276a62;
  background: rgba(109, 180, 171, 0.18);
  font-size: 12px;
  font-weight: 600;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(109, 180, 171, 0.18);
}

.page-shell {
  width: min(calc(100% - 48px), var(--content));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(430px, 0.9fr);
  align-items: center;
  gap: clamp(38px, 7vw, 112px);
  min-height: 800px;
  padding: 154px 0 92px;
}

.eyebrow,
.section-label,
.detail-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before,
.section-label::before,
.detail-kicker::before {
  display: inline-block;
  width: 22px;
  height: 1px;
  content: "";
  background: var(--accent);
}

.hero h1 {
  max-width: 700px;
  margin-bottom: 25px;
  font-size: clamp(36px, 3.5vw, 54px);
  line-height: 1.06;
}

.hero h1 .accent {
  position: relative;
  display: inline;
  white-space: nowrap;
}

.hero h1 .accent::after {
  position: absolute;
  right: 0.03em;
  bottom: 0.04em;
  left: 0.03em;
  height: 0.12em;
  border-radius: 999px;
  content: "";
  background: rgba(232, 119, 77, 0.3);
  transform: rotate(-1.5deg);
  transform-origin: left center;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: clamp(16px, 1.55vw, 19px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 10px 17px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease), border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.button-primary {
  color: var(--card);
  background: var(--ink);
  box-shadow: 0 6px 0 rgba(23, 23, 21, 0.12);
}

.button-primary:hover {
  background: var(--accent-deep);
  box-shadow: 0 8px 18px rgba(200, 92, 53, 0.2);
  transform: translateY(-2px);
}

.button-secondary {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}

.button-secondary:hover {
  border-color: var(--ink);
  background: var(--card);
  transform: translateY(-2px);
}

.button:active {
  box-shadow: none;
  transform: translateY(1px) scale(0.98);
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}

.hero-note-mark {
  display: inline-flex;
  width: 25px;
  height: 25px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent-deep);
  font-size: 14px;
}

.desk-scene {
  position: relative;
  min-height: 540px;
  isolation: isolate;
  transform: perspective(1100px) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg));
  transition: transform 380ms var(--ease);
  will-change: transform;
}

.desk-board {
  position: absolute;
  z-index: -1;
  inset: 34px 0 0 36px;
  border: 1px solid rgba(23, 23, 21, 0.1);
  border-radius: 38px;
  background: var(--paper-deep);
  box-shadow: var(--shadow);
  transform: rotate(3deg);
}

.desk-line {
  position: absolute;
  z-index: -1;
  top: 12%;
  right: -3%;
  width: 118px;
  height: 1px;
  background: var(--accent);
  transform: rotate(26deg);
}

.desk-label {
  position: absolute;
  top: 2px;
  left: 6px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.avatar-card {
  position: absolute;
  top: 62px;
  left: 28px;
  width: min(58%, 270px);
  overflow: hidden;
  border: 8px solid var(--card);
  border-radius: 26px;
  background: var(--card);
  box-shadow: var(--shadow);
  transform: rotate(-6deg);
  transition: transform 380ms var(--ease), box-shadow 380ms var(--ease);
}

.avatar-card:hover {
  box-shadow: 0 24px 46px rgba(63, 50, 34, 0.14);
  transform: rotate(-3deg) translateY(-6px);
}

.avatar-card img {
  width: 100%;
  aspect-ratio: 0.82;
  object-fit: cover;
  object-position: center;
  border-radius: 18px;
  background: var(--paper-deep);
}

.avatar-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 6px 4px;
  color: var(--muted);
  font-size: 11px;
}

.avatar-caption strong {
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.scene-card {
  position: absolute;
  right: 0;
  width: min(54%, 270px);
  padding: 19px;
  border: 1px solid rgba(23, 23, 21, 0.1);
  border-radius: 22px;
  background: rgba(251, 250, 247, 0.88);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}

.scene-card-top {
  top: 52px;
  transform: rotate(5deg);
}

.scene-card-bottom {
  right: 8%;
  bottom: 54px;
  width: min(63%, 310px);
  transform: rotate(-4deg);
}

.scene-card h3 {
  margin-bottom: 6px;
  font-size: 22px;
  line-height: 1.16;
}

.scene-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.scene-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 11px;
}

.mini-bars {
  display: grid;
  gap: 8px;
  margin-top: 17px;
}

.mini-bar {
  display: grid;
  grid-template-columns: 1fr 42px;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 10px;
}

.mini-bar::before {
  display: block;
  height: 6px;
  border-radius: 999px;
  content: "";
  background: var(--paper-deep);
  box-shadow: inset 54px 0 0 var(--teal);
}

.mini-bar:nth-child(2)::before {
  box-shadow: inset 86px 0 0 var(--accent);
}

.scene-sticker {
  position: absolute;
  right: 7%;
  bottom: 2px;
  display: grid;
  width: 84px;
  height: 84px;
  padding: 10px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  color: var(--ink);
  background: var(--accent);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  transform: rotate(9deg);
}

.section {
  padding: 112px 0;
  scroll-margin-top: 90px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 34px;
}

.section-head h2 {
  max-width: 640px;
  margin-bottom: 0;
  font-size: clamp(36px, 3.5vw, 52px);
  line-height: 1.05;
}

.section-head p {
  max-width: 310px;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 14px;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.project-card {
  position: relative;
  display: flex;
  min-height: 430px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-soft);
  transition: transform 300ms var(--ease), border-color 300ms var(--ease), box-shadow 300ms var(--ease);
}

.project-card:nth-child(1),
.project-card:nth-child(2),
.project-card:nth-child(3) {
  grid-column: span 4;
}

.project-card:hover {
  border-color: rgba(23, 23, 21, 0.26);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}

.project-card:active {
  transform: translateY(-1px) scale(0.992);
}

.project-media {
  position: relative;
  height: 220px;
  min-height: 220px;
  overflow: hidden;
  background: var(--paper-deep);
}

.project-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 64%, rgba(23, 23, 21, 0.18));
  pointer-events: none;
}

.project-media img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  transition: transform 500ms var(--ease);
}

.project-card:nth-child(2) .project-media img {
  object-position: center 24%;
}

.project-card:nth-child(3) .project-media img {
  object-position: center 28%;
}

.project-card:first-child .project-media > img {
  padding: 18px 30px;
  background: var(--paper-deep);
  object-fit: contain;
}

.cover-collage {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 7px;
  width: 100%;
  height: 100%;
  padding: 8px;
  background: var(--paper-deep);
}

.cover-collage img {
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: 0;
  border-radius: 12px;
  object-fit: cover;
}

.cover-collage img:first-child {
  grid-row: span 2;
}

.cover-collage--detail {
  min-height: 500px;
  gap: 10px;
  padding: 12px;
}

.cover-collage--detail img {
  border-radius: 17px;
}

.project-card:hover .project-media img {
  transform: scale(1.035);
}

.project-index {
  position: absolute;
  z-index: 1;
  top: 15px;
  left: 15px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(251, 250, 247, 0.65);
  border-radius: 50%;
  color: var(--card);
  background: rgba(23, 23, 21, 0.48);
  font-size: 11px;
  font-weight: 700;
  backdrop-filter: blur(8px);
}

.project-arrow {
  position: absolute;
  z-index: 1;
  top: 15px;
  right: 15px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(251, 250, 247, 0.65);
  border-radius: 50%;
  color: var(--card);
  background: rgba(23, 23, 21, 0.48);
  font-size: 18px;
  backdrop-filter: blur(8px);
  transition: background-color 200ms var(--ease), transform 200ms var(--ease);
}

.project-card:hover .project-arrow {
  background: var(--accent);
  transform: rotate(8deg);
}

.project-info {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 21px 23px 22px;
}

.project-kicker {
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card h3 {
  margin-bottom: 9px;
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1.1;
}

.project-card p {
  max-width: 560px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.project-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.project-foot strong {
  color: var(--ink);
  font-weight: 700;
}

.about-section {
  display: block;
  padding: 120px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 90px;
}

/* 关于区块先放标签行，再放下面的标题、说明与工作信息。 */
.about-section > .section-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: auto;
  margin-bottom: 48px;
}

.about-section > .section-label::before {
  width: 22px;
  height: 1px;
}

.about-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(180px, 0.75fr);
  gap: 50px;
}

.about-copy h2 {
  max-width: 650px;
  margin-bottom: 25px;
  font-size: clamp(33px, 3.6vw, 50px);
  line-height: 1.08;
}

.about-copy p {
  max-width: 640px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.about-index {
  align-self: end;
  display: grid;
  gap: 14px;
  padding-bottom: 7px;
}

.about-index-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.about-index-row span {
  color: var(--muted);
}

.about-index-row strong {
  font-weight: 700;
  text-align: right;
}

.now-section {
  padding-top: 108px;
}

.now-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.now-card {
  min-height: 206px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(251, 250, 247, 0.5);
  transition: transform 260ms var(--ease), background-color 260ms var(--ease), border-color 260ms var(--ease);
}

.now-card:hover {
  border-color: rgba(23, 23, 21, 0.24);
  background: var(--card);
  transform: translateY(-4px);
}

.now-number {
  display: block;
  margin-bottom: 44px;
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.now-card h3 {
  margin-bottom: 7px;
  font-size: 25px;
  line-height: 1.12;
}

.now-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(460px, 1fr);
  align-items: stretch;
  gap: 22px;
  padding: 122px 0 130px;
  scroll-margin-top: 90px;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 330px;
  padding: 28px 0;
}

.contact-copy h2 {
  max-width: 630px;
  margin-bottom: 18px;
  font-size: clamp(40px, 4.5vw, 60px);
  line-height: 1.02;
}

.contact-copy p {
  max-width: 500px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.contact-card {
  display: flex;
  min-height: 380px;
  flex-direction: column;
  justify-content: space-between;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow-soft);
}

.contact-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

.contact-card-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #276a62;
  font-weight: 700;
}

.contact-card h3 {
  max-width: 340px;
  margin: 0 0 13px;
  font-size: clamp(26px, 2.5vw, 34px);
  line-height: 1.1;
}

.contact-card-body {
  display: grid;
  grid-template-columns: 158px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
  padding: 18px 0;
}

.contact-qr {
  margin: 0;
}

.contact-qr-link {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 16px;
  background: transparent;
  cursor: zoom-in;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

.contact-qr-link:hover {
  box-shadow: 0 10px 24px rgba(63, 50, 34, 0.12);
  transform: translateY(-2px);
}

.contact-qr-link:active {
  transform: scale(0.98);
}

.contact-qr img {
  width: 158px;
  aspect-ratio: 888 / 1131;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  object-fit: cover;
}

.contact-qr figcaption {
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  text-align: center;
}

.contact-details {
  min-width: 0;
}

.contact-card p {
  max-width: 365px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 13px;
  font-weight: 700;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.contact-email:hover {
  color: var(--accent-deep);
  border-color: var(--accent);
}

.contact-card-bottom {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.contact-lightbox {
  width: min(560px, calc(100% - 32px));
  max-width: none;
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: visible;
  border: 1px solid var(--line);
  border-radius: 30px;
  color: var(--ink);
  background: var(--card);
  box-shadow: 0 34px 90px rgba(32, 26, 19, 0.24);
}

.contact-lightbox::backdrop {
  background: rgba(23, 23, 21, 0.5);
  backdrop-filter: blur(9px) saturate(0.85);
}

.contact-lightbox[open] {
  animation: contact-lightbox-in 260ms var(--ease) both;
}

.contact-lightbox-panel {
  padding: 20px;
}

.contact-lightbox-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 4px 2px 17px;
}

.contact-lightbox-kicker {
  display: block;
  margin-bottom: 3px;
  color: var(--accent-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.contact-lightbox h2 {
  margin: 0;
  font-size: clamp(27px, 4vw, 38px);
  line-height: 1.05;
}

.contact-lightbox-close {
  display: grid;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  font-family: inherit;
  font-size: 24px;
  line-height: 1;
  transition: background-color 180ms var(--ease), transform 180ms var(--ease);
}

.contact-lightbox-close:hover {
  background: var(--paper-deep);
}

.contact-lightbox-close:active {
  transform: scale(0.94);
}

.contact-lightbox-panel > img {
  width: 100%;
  max-height: calc(100dvh - 190px);
  border: 1px solid var(--line);
  border-radius: 21px;
  background: #fff;
  object-fit: contain;
}

.contact-lightbox-panel > p {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@keyframes contact-lightbox-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(calc(100% - 48px), var(--content));
  margin: 0 auto;
  padding: 22px 0 30px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.footer a {
  transition: color 180ms var(--ease);
}

.footer a:hover {
  color: var(--ink);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 650ms var(--ease), transform 650ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* project detail */
.project-page .page-shell {
  width: min(calc(100% - 48px), 1040px);
}

.project-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(300px, 0.54fr);
  align-items: end;
  gap: 60px;
  padding: 166px 0 70px;
}

.project-hero h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-size: clamp(46px, 5vw, 68px);
  line-height: 0.99;
}

.project-hero-lede {
  max-width: 540px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.project-hero-meta {
  display: grid;
  gap: 13px;
  padding: 20px 0 4px;
  border-top: 1px solid var(--line);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  color: var(--muted);
  font-size: 13px;
}

.meta-row strong {
  color: var(--ink);
  font-weight: 700;
  text-align: right;
}

.detail-feature {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--paper-deep);
}

.media-frame img {
  width: 100%;
  max-height: 720px;
  object-fit: cover;
}

body[data-project="ai-koubo"] .detail-feature .media-frame {
  background: var(--paper-deep);
}

body[data-project="ai-koubo"] .detail-feature .media-frame > img {
  height: clamp(300px, 38vw, 560px);
  max-height: none;
  padding: 24px clamp(20px, 6vw, 64px);
  object-fit: contain;
}

.detail-feature-caption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 17px 21px;
  color: var(--muted);
  font-size: 12px;
}

.detail-feature-caption strong {
  color: var(--ink);
  font-size: 13px;
}

.detail-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.38fr);
  gap: 72px;
  padding: 78px 0 120px;
}

.detail-story h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 3.5vw, 44px);
  line-height: 1.08;
}

.detail-story p {
  max-width: 680px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.86;
}

.detail-story p:last-child {
  margin-bottom: 0;
}

.detail-aside {
  align-self: start;
  padding-top: 8px;
}

.detail-aside h3 {
  margin-bottom: 15px;
  font-size: 20px;
}

.detail-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.detail-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.detail-list li strong {
  color: var(--ink);
  font-weight: 650;
  text-align: right;
}

.detail-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-bottom: 120px;
}

.gallery-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card);
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 1.42;
  object-fit: cover;
}

.gallery-card figcaption {
  padding: 12px 15px 14px;
  color: var(--muted);
  font-size: 12px;
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 13px;
  transition: color 180ms var(--ease), transform 180ms var(--ease);
}

.detail-back:hover {
  color: var(--ink);
  transform: translateX(-3px);
}

.detail-note {
  margin-top: 20px;
  padding: 15px 17px;
  border-left: 3px solid var(--teal);
  color: var(--muted);
  background: rgba(109, 180, 171, 0.1);
  font-size: 13px;
  line-height: 1.65;
}

@media (max-width: 980px) {
  .topbar {
    width: min(calc(100% - 28px), var(--content));
  }

  .status-pill {
    display: none;
  }

  .page-shell,
  .footer {
    width: min(calc(100% - 40px), var(--content));
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 35px;
    min-height: auto;
    padding-top: 140px;
  }

  .desk-scene {
    width: min(100%, 690px);
    min-height: 495px;
    margin: 0 auto;
  }

  .project-card:nth-child(1),
  .project-card:nth-child(2),
  .project-card:nth-child(3) {
    grid-column: span 6;
  }

  .about-section {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-copy {
    grid-template-columns: 1fr;
  }

  .about-index {
    max-width: 430px;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-copy {
    min-height: 0;
    padding: 0 0 18px;
  }

  .project-hero {
    grid-template-columns: 1fr;
    gap: 35px;
  }
}

@media (max-width: 640px) {
  html {
    scroll-behavior: auto;
  }

  body {
    font-size: 15px;
  }

  .topbar {
    top: 10px;
    padding-left: 12px;
  }

  .brand {
    font-size: 13px;
  }

  .nav a {
    padding: 6px 9px;
    font-size: 12px;
  }

  .page-shell,
  .footer {
    width: calc(100% - 32px);
  }

  .hero {
    padding: 122px 0 70px;
  }

  .hero h1 {
    font-size: clamp(34px, 9.5vw, 46px);
  }

  .hero-lede {
    font-size: 16px;
  }

  .hero-actions {
    margin-bottom: 29px;
  }

  .desk-scene {
    min-height: 430px;
    transform: none;
  }

  .desk-board {
    inset: 24px 0 0 17px;
    border-radius: 26px;
  }

  .avatar-card {
    top: 54px;
    left: 16px;
    width: 53%;
    border-width: 6px;
    border-radius: 20px;
  }

  .avatar-card img {
    border-radius: 14px;
  }

  .avatar-caption {
    padding-top: 7px;
    font-size: 9px;
  }

  .avatar-caption strong {
    font-size: 10px;
  }

  .scene-card {
    width: 53%;
    padding: 14px;
    border-radius: 17px;
  }

  .scene-card-top {
    top: 36px;
  }

  .scene-card-bottom {
    right: 5%;
    bottom: 42px;
    width: 62%;
  }

  .scene-card h3 {
    font-size: 17px;
  }

  .scene-card p,
  .scene-card .card-meta {
    font-size: 10px;
  }

  .mini-bars {
    gap: 5px;
    margin-top: 10px;
  }

  .mini-bar {
    grid-template-columns: 1fr 31px;
    font-size: 8px;
  }

  .scene-sticker {
    right: 3%;
    bottom: 3px;
    width: 65px;
    height: 65px;
    font-size: 9px;
  }

  .section {
    padding: 78px 0;
  }

  .section-head {
    display: block;
    margin-bottom: 25px;
  }

  .section-head h2 {
    font-size: 35px;
  }

  .section-head p {
    margin-top: 16px;
    font-size: 13px;
  }

  .project-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .project-card:nth-child(1),
  .project-card:nth-child(2),
  .project-card:nth-child(3) {
    grid-column: span 1;
  }

  .project-card,
  .project-card:first-child {
    min-height: 0;
  }

  .project-media,
  .project-card:first-child .project-media {
    height: 230px;
    min-height: 230px;
  }

  .project-info {
    padding: 18px 18px 19px;
  }

  .project-card h3 {
    font-size: 27px;
  }

  .about-section {
    padding: 80px 0;
  }

  .about-copy h2 {
    font-size: 35px;
  }

  .about-copy p {
    font-size: 16px;
  }

  .now-section {
    padding-top: 80px;
  }

  .now-grid {
    grid-template-columns: 1fr;
  }

  .now-card {
    min-height: 170px;
  }

  .now-number {
    margin-bottom: 25px;
  }

  .contact-section {
    padding: 84px 0 94px;
  }

  .contact-copy h2 {
    font-size: 41px;
  }

  .contact-card {
    min-height: 285px;
    padding: 20px;
  }

  .contact-card-body {
    grid-template-columns: 126px minmax(0, 1fr);
    gap: 16px;
  }

  .contact-qr img {
    width: 126px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
    padding-bottom: 25px;
  }

  .project-page .page-shell {
    width: calc(100% - 32px);
  }

  .project-hero {
    gap: 27px;
    padding: 126px 0 47px;
  }

  .project-hero h1 {
    font-size: clamp(40px, 12vw, 52px);
  }

  .project-hero-lede {
    font-size: 16px;
  }

  .detail-body {
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 56px 0 76px;
  }

  .detail-story p {
    font-size: 16px;
  }

  .detail-gallery {
    grid-template-columns: 1fr;
    padding-bottom: 80px;
  }

  .detail-feature-caption {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}

@media (max-width: 360px) {
  .topbar {
    gap: 8px;
    padding-right: 8px;
  }

  .brand em {
    display: none;
  }

  .nav {
    flex-shrink: 0;
  }

  .nav a {
    padding-inline: 7px;
    white-space: nowrap;
  }

  .contact-card-body {
    grid-template-columns: 1fr;
  }

  .contact-qr {
    justify-self: center;
  }

  .contact-qr img {
    width: 168px;
  }

  .contact-lightbox {
    width: calc(100% - 20px);
    max-height: calc(100dvh - 20px);
    border-radius: 24px;
  }

  .contact-lightbox-panel {
    padding: 13px;
  }

  .contact-lightbox-head {
    padding: 5px 2px 13px;
  }

  .contact-lightbox-panel > img {
    max-height: calc(100dvh - 166px);
    border-radius: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .desk-scene {
    transform: none !important;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .topbar,
  .scene-card {
    background: var(--card);
    backdrop-filter: none;
  }
}

@media (forced-colors: active) {
  .button-primary,
  .status-pill,
  .scene-sticker {
    border: 1px solid CanvasText;
  }
}