:root {
  --bg: #0a0a0a;
  --card: #111111;
  --card-2: #151515;
  --text: #f5f5f5;
  --muted: rgba(255, 255, 255, 0.62);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --max-width: 1240px;
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "SF Pro Display", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

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

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

/* nav */
.project-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(8, 8, 8, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav-inner {
  min-height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.back-link,
.brand {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: rgba(244, 241, 235, 0.74);
  line-height: 1;
  transition: color 0.25s ease, opacity 0.25s ease, transform 0.25s ease;
}

.back-link:hover,
.brand:hover {
  opacity: 1;
  color: #ffffff;
  transform: translateY(-1px);
}

.brand {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.9);
}

/* hero */
.project-hero {
  padding: 108px 0 56px;
}

.project-eyebrow,
.section-eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.project-hero h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.project-intro {
  max-width: 760px;
  margin: 22px 0 0;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.7;
  color: var(--muted);
}

/* cover */
.project-cover {
  padding-bottom: 36px;
}

.cover-media {
  overflow: hidden;
  border-radius: 30px;
  background: #111;
  border: 1px solid var(--line);
}

.cover-media img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* overview */
.project-overview,
.project-section,
.project-gallery,
.project-footer-nav {
  padding: 72px 0;
}

.overview-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.project-meta {
  display: grid;
  gap: 14px;
}

.meta-item {
  padding: 18px 20px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--line);
}

.meta-item span {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.meta-item strong {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 500;
}

.project-text h2,
.section-head h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.project-text p,
.section-copy p {
  margin: 18px 0 0;
  max-width: 820px;
  font-size: 17px;
  line-height: 1.95;
  color: var(--muted);
}

/* generic section */
.section-grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

/* media */
.media-grid {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.media-grid.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.media-card,
.gallery-card {
  overflow: hidden;
  border-radius: 24px;
  background: var(--card);
  border: 1px solid var(--line);
}

.media-card img,
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-card figcaption {
  padding: 14px 16px 16px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

/* gallery */
.gallery-stack {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.gallery-card.large img {
  aspect-ratio: 16 / 9;
}

.layout-advanced {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.small-card img {
  aspect-ratio: 1 / 1;
}

.tall-card img {
  aspect-ratio: 4 / 5;
}

/* footer nav */
.project-footer-nav {
  border-top: 1px solid var(--line);
  padding-top: 40px;
  padding-bottom: 80px;
}

.footer-nav-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-link {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.84);
  transition: opacity 0.3s ease;
}

.footer-link:hover {
  opacity: 0.65;
}

/* reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* responsive */
@media (max-width: 980px) {
  .overview-grid,
  .section-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .layout-advanced {
    grid-template-columns: 1fr;
  }

  .media-grid.two-col {
    grid-template-columns: 1fr;
  }

  .project-hero {
    padding: 88px 0 42px;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .nav-inner {
    min-height: 44px;
  }

  .project-overview,
  .project-section,
  .project-gallery {
    padding: 56px 0;
  }

  .project-footer-nav {
    padding-bottom: 56px;
  }

  .project-text p,
  .section-copy p,
  .project-intro {
    font-size: 16px;
    line-height: 1.85;
  }

  .cover-media,
  .media-card,
  .gallery-card {
    border-radius: 20px;
  }
}

/* Breakdown 拼图 */
.breakdown-layout {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 24px;
}


.breakdown-stack {
  margin-top: 40px;
  display: grid;
  gap: 28px;
}

.bd-wide-card {
  overflow: hidden;
  border-radius: 24px;
  background: #111;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.bd-wide-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 8.8;
  object-fit: cover;
}

.bd-wide-card figcaption {
  padding: 14px 16px 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Final 区 */
.final-layout {
  margin-top: 32px;
  display: grid;
  gap: 24px;
}

.final-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* 手机适配 */
@media (max-width: 980px) {
  .breakdown-layout {
    grid-template-columns: 1fr;
  }

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

.breakdown-full {
  width: 100%;
  margin-top: 40px;
}

.breakdown-full .breakdown-stack {
  width: min(calc(100% - 48px), 1240px);
  margin: 0 auto;
}

.breakdown-full .breakdown-stack.full-bleed {
  width: calc(100% - 48px);
}

/* ========== Behance-style Project Page ========== */

.project-page {
  background: #0a0a0a;
  color: #f5f5f5;
}

/* 1. Hero Cover */
.hero-cover {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #000;
}


.hero-cover img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 70vh;
  object-fit: cover;
}

.hero-fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 220px;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0) 0%,
    rgba(10, 10, 10, 0.72) 48%,
    #0a0a0a 100%
  );
  pointer-events: none;
}

.project-03 .hero-cover {
  aspect-ratio: 16 / 6.3;
  max-height: 78vh;
}

.project-03 .hero-cover img {
  height: 100%;
  min-height: 0;
}

/* 2. Intro */
.project-intro-block {
  padding: 88px 0 96px;
}

.intro-inner {
  width: min(100% - 48px, 900px);
  margin: 0 auto;
  text-align: center;
}

.intro-inner h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.05em;
  font-weight: 700;
}

.intro-sub {
  margin: 20px 0 0;
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

.intro-desc {
  max-width: 760px;
  margin: 28px auto 0;
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255,255,255,0.72);
}

/* 3. Final Showcase */
.final-showcase {
  padding: 0 0 120px;
}

.showcase-stack {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
  display: block;
}

.showcase-card {
  margin: 0;
  line-height: 0;
}

.showcase-card + .showcase-card {
  margin-top: 6px;  /* 👈 关键：轻微间隙 */
}

.showcase-card img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 900px) {
  .project-03-rnd-gallery {
    grid-template-columns: 1fr;
  }

  .project-03-rnd-shot img {
    aspect-ratio: 4 / 3;
  }

  .project-03-rnd-summary {
    margin-top: 20px;
  }

}

.project-03 .final-showcase {
  padding: 0 0 88px;
}

.project-03-mosaic {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 10px;
}

.project-03-tile {
  margin: 0;
  overflow: hidden;
  border-radius: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.project-03-tile-hidden {
  display: none;
}

.project-03-tile img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-03-tile-landscape {
  grid-column: span 6;
  height: 320px;
}

.project-03-tile-landscape-full {
  grid-column: 1 / -1;
}

.project-03-tile-preview {
  grid-column: span 4;
  height: 500px;
}

.project-03-tile-full-image {
  height: 420px;
  width: 100%;
  margin: 0;
}

.project-03-tile-full-image img {
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.project-03-tile-portrait {
  grid-column: span 3;
  height: 520px;
}

/* 4. Breakdown */
.breakdown-section {
  padding: 32px 0 120px;
}

.breakdown-head {
  width: min(100% - 48px, 900px);
  margin: 0 auto 48px;
  text-align: center;
}

.breakdown-eyebrow {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

.breakdown-head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.breakdown-text {
  max-width: 760px;
  margin: 22px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,255,255,0.72);
}

.breakdown-stack {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
  display: grid;
  gap: 28px;
}

.breakdown-card {
  overflow: hidden;
  background: #101010;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 22px;
}

.breakdown-card img {
  display: block;
  width: 100%;
  height: auto;
}

.breakdown-card figcaption {
  padding: 14px 18px 18px;
  font-size: 14px;
  color: rgba(255,255,255,0.58);
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Mobile */
@media (max-width: 768px) {
  .hero-cover img {
    min-height: 46vh;
  }

  .project-intro-block {
    padding: 64px 0 72px;
  }

  .final-showcase,
  .breakdown-section {
    padding-bottom: 72px;
  }

  .intro-inner,
  .breakdown-head,
  .showcase-stack,
  .breakdown-stack {
    width: min(100% - 32px, 1320px);
  }

  .intro-desc,
  .breakdown-text {
    font-size: 16px;
    line-height: 1.8;
  }

  .project-03-mosaic {
    width: min(100% - 32px, 1320px);
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .project-03-tile-preview {
    grid-column: span 1;
    height: 320px;
  }

  .project-03-tile-landscape {
    grid-column: span 2;
    height: 240px;
  }

  .project-03-tile-portrait {
    grid-column: span 1;
    height: 360px;
  }

  .project-03-tile img {
    width: 100%;
  }
}

@media (min-width: 769px) and (max-width: 1100px) {
  .project-03-mosaic {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .project-03-tile-preview {
    grid-column: span 2;
    height: 420px;
  }

  .project-03-tile-portrait {
    grid-column: span 3;
    height: 460px;
  }

  .project-03-tile-landscape {
    grid-column: span 3;
    height: 280px;
  }
}

.rd-grid {
  display: grid;
  gap: 12px;
}

.rd-grid.two-col {
  grid-template-columns: 1fr 1fr;
}

.rd-grid.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.project-02 .rnd-info-reverse .rnd-copy {
  order: 2;
  padding: 4px 0 0 18px;
}

.project-02 .rnd-info-reverse .rnd-gif {
  order: 1;
}

@media (max-width: 900px) {
  .rd-grid.two-col,
  .rd-grid.three-col {
    grid-template-columns: 1fr;
  }
}

.two-by-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.rd-item {
  margin: 0;
  line-height: 0;
  overflow: hidden;
}

.rd-item img,
.rd-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.two-by-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;

  /* 👇 关键就在这里 */
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.rd-item.full {
  grid-column: span 2;
}

.project-03-sim-grid {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-03-sim-grid .rd-item {
  min-height: 520px;
}

.project-03-sim-grid .rd-item.full {
  grid-column: span 3;
  min-height: 295px;
}

.project-03-sim-wide {
  height: 385px;
}

.rd-section {
  padding: 36px 0 120px;
}

.research-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-intro-block {
  padding: 88px 0 110px;
}

.intro-inner {
  width: min(100% - 48px, 1100px);
  margin: 0 auto;
  text-align: center;
}

.intro-inner h1 {
  margin: 0;
  font-size: clamp(56px, 8vw, 110px);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.intro-sub {
  margin: 18px 0 36px;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.intro-text {
  margin-left: auto;
  margin-right: auto;
}

.intro-text.en {
  max-width: 980px;
}

.intro-text.cn {
  max-width: 920px;
  margin-top: 30px;
}

.intro-text p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.9;
  text-align: center;
}

.intro-text.en p {
  color: rgba(255,255,255,0.76);
}

.intro-text.cn p {
  color: rgba(255,255,255,0.62);
}

.intro-text p:last-child {
  margin-bottom: 0;
}

/* ===== R&D Section ===== */

.rd-section {
  padding: 120px 0 120px;
}

.rd-head {
  width: min(100% - 48px, 900px);
  margin: 0 auto 72px;
  text-align: center;
}

.rd-head h2 {
  margin: 0;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.rd-intro {
  max-width: 760px;
  margin: 24px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,255,255,0.68);
}

.rd-module {
  width: min(100% - 48px, 1320px);
  margin: 0 auto 72px;
}

.rd-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.38);
}

.rd-cn {
  max-width: 900px;
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255,255,255,0.84);
}

.rd-en {
  max-width: 900px;
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255,255,255,0.48);
}

.rd-top-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.rd-top-row .rd-item {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #111;
}

.rd-top-row .rd-item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}


@media (max-width: 900px) {
  .rd-top-row {
    grid-template-columns: 1fr 1fr;
  }

  .rd-bottom-stagger {
    grid-template-columns: 1fr;
  }

  .rd-bottom-stagger .stagger-right {
    margin-top: 0;
  }

  .rd-module {
    margin-bottom: 56px;
  }
}

.terrain-layout {
  width: 100%;
  margin: 60px 0 0;
}

.terrain-main,
.terrain-gif {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #111;
}

.terrain-main img,
.terrain-gif img {
  width: 100%;
  height: auto;
  display: block;
}

.terrain-bottom {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 16px;
  align-items: stretch;
}

.terrain-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 10px 4px 0 0;
}

.terrain-process-note {
  max-width: 520px;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255,255,255,0.52);
  text-align: left;
}

.terrain-gif img {
  width: 100%;
  height: 100%;
  height: 320px; 
  object-fit: cover;
}

.terrain-copy {
  padding: 10px 4px 0 0;
}

.terrain-cn {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255,255,255,0.85);
}

.terrain-en {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255,255,255,0.45);
  max-width: 520px;
}

.project-03-rnd-module {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-03-rnd-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  width: 100%;
  margin: 0;
}

.project-03-rnd-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.project-03-rnd-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.project-03-rnd-shot {
  margin: 0;
  overflow: hidden;
  background: #111;
  line-height: 0;
}

.project-03-rnd-shot-wide img {
  aspect-ratio: 16 / 9;
}

.project-03-rnd-shot img {
  width: 100%;
  object-fit: cover;
  display: block;
}

.project-03-rnd-copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 100%;
  max-width: 560px;
  padding-top: 4px;
}

.project-03-rnd-title {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  text-transform: none;
  color: rgba(255,255,255,0.46);
}

.project-03-rnd-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255,255,255,0.68);
}

.project-03-rnd-text + .project-03-rnd-text {
  margin-top: 18px;
}

.project-03-rnd-text-cn {
  color: rgba(255,255,255,0.72);
}

.project-03-rnd-text-en {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255,255,255,0.42);
}

.project-03-rnd-gif {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #0c0c0c;
}

.project-03-rnd-gif img {
  width: 100%;
  min-height: 320px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.project-03-rnd-gif-placeholder {
  min-height: 320px;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(255,255,255,0.16);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015)),
    #0a0a0a;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.32);
}

@media (max-width: 900px) {
  .project-03-rnd-gallery {
    gap: 30px;
  }

  .project-03-rnd-bottom {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .project-03-rnd-copy {
    max-width: none;
    padding: 0;
  }

  .project-03-rnd-gif-placeholder {
    min-height: 220px;
  }

  .project-03-rnd-gif img {
    min-height: 220px;
  }

  .terrain-bottom {
    grid-template-columns: 1fr;
  }

  .terrain-copy {
    padding: 0;
  }

  .terrain-process-note {
    max-width: none;
  }

  /* 反转布局（gif 在左） */
.terrain-layout.reverse .terrain-bottom {
  grid-template-columns: 1.1fr 0.9fr;
}

.terrain-layout.reverse .terrain-gif {
  order: 1;
}

.terrain-layout.reverse .terrain-copy {
  order: 2;
}
}

/* ===== 底部信息区 ===== */
.project-credits {
  margin-top: 140px;
  padding: 40px 0 140px;
  background: #000;
}

/* 控制整体宽度（和你上面内容统一） */
.credits-container {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

/* 小标题（灰的那种） */
.credits-role {
  font-size: 13px;
  color: #777;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

/* 名字 / 内容（白色主信息） */
.credits-name {
  font-size: 22px;
  color: #fff;
  font-weight: 500;
  line-height: 1.9;
  margin-bottom: 48px;
}

/* 最后一行说明 */
.credits-note {
  font-size: 13px;
  color: #666;
  margin-top: 60px;
  line-height: 1.6;
}

.project-thanks {
  padding: 180px 0 200px;   /* 👈 上大下小，往 credits 靠 */
  text-align: center;
  background: #000;        /* 👈 和下面统一黑色 */
}

.thanks-inner {
  width: min(100% - 48px, 900px);
  margin: 0 auto;
}

.project-thanks h2 {
  margin: 0;
  font-size: clamp(56px, 7vw, 96px);
  letter-spacing: -0.04em;
  font-weight: 600;
}
.project-credits {
  margin-top: 0;           /* 👈 关键：去掉断层 */
  padding: 80px 0 140px;  /* 👈 和 thank you 连起来 */
  background: #000;
}

.hero-cover img {
  transform: scale(1.06);
  opacity: 0;
  transition: 
    transform 1.6s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 1.2s ease;
}

.hero-cover.is-loaded img {
  transform: scale(1);
  opacity: 1;
}

.project-thanks,
.project-credits {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
  will-change: auto !important;
}

.project-thanks.reveal,
.project-credits.reveal,
.project-thanks.is-visible,
.project-credits.is-visible {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}



/* ===== Project 02 Overrides ===== */

.project-02 {
  background: #f6f7f3;
  color: #111111;
}

/* 顶部导航 */
.project-02 .project-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 999;

  background: rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);

  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.project-02 .project-nav::after {
  content: "";
  position: absolute;
  inset: 0;

  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.35),
    rgba(255,255,255,0.08)
  );

  pointer-events: none;
}

.project-02 .brand,
.project-02 .back-link {
  color: rgba(0, 0, 0, 0.82);
}

/* 主体容器 */
.project-02 .project-main {
  padding-top: 44px;
  background: #f6f7f3;
}

/* Hero */
.project-02 .hero-cover {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #f6f7f3;

  aspect-ratio: 16 / 6.2;   /* 关键：压扁一点 */
  max-height: 78vh;         /* 不要再接近整屏 */
}

.project-02 .hero-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;

  transform: scale(1.02);
  opacity: 0;
  transition:
    transform 1.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 1s ease;
}

.project-02 .hero-cover.is-loaded img {
  transform: scale(1);
  opacity: 1;
}

.project-02 .hero-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.project-02 .hero-fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(
    to bottom,
    rgba(246, 247, 243, 0) 0%,
    rgba(246, 247, 243, 0.55) 55%,
    #f6f7f3 100%
  );
  pointer-events: none;
}

/* Intro */
.project-02 .project-intro-block {
  padding: 170px 0 100px;
}

.project-02 .intro-inner {
  width: min(100% - 48px, 980px);
  margin: 0 auto;
  text-align: center;
}

.project-02 .intro-inner h1 {
  margin: 0;
  font-size: clamp(44px, 6vw, 82px);
  line-height: 0.96;
  letter-spacing: -0.05em;
  color: #111111;
}

.project-02 .intro-sub {
  margin: 18px 0 34px;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.46);
}

.project-02 .intro-text {
  margin-left: auto;
  margin-right: auto;
}

.project-02 .intro-text.en {
  max-width: 860px;
}

.project-02 .intro-text.cn {
  max-width: 820px;
  margin-top: 28px;
}

.project-02 .intro-text p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.9;
  text-align: center;
}

.project-02 .intro-text p:last-child {
  margin-bottom: 0;
}

.project-02 .intro-text.en p {
  color: rgba(0, 0, 0, 0.72);
}

.project-02 .intro-text.cn p {
  color: rgba(0, 0, 0, 0.58);
}

/* Final Showcase */
.project-02 .final-showcase {
  padding: 0 0 12px;
}

.project-02 .showcase-stack {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-02 .showcase-card {
  margin: 0;
  line-height: 0;
  background: transparent;
}

.project-02 .showcase-card img {
  display: block;
  width: 100%;
  height: auto;
}

/* 第二组图片 */
.project-02 .project-section-alt {
  padding: 0 0 110px;
}

.project-02 .alt-grid {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.project-02 .alt-card {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: transparent;
}

.project-02 .alt-card img {
  display: block;
  width: 100%;
  height: auto;
}

/* Breakdown */
.project-02 .breakdown-section {
  padding: 28px 0 120px;
}

.project-02 .breakdown-head {
  width: min(100% - 48px, 900px);
  margin: 0 auto 44px;
  text-align: center;
}

.project-02 .breakdown-head h2 {
  margin: 0;
  color: #111111;
}

.project-02 .breakdown-text {
  max-width: 760px;
  margin: 20px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.62);
}

.project-02 .two-by-two {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.project-02 .rd-item {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #edf0e8;
}

.project-02 .rd-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-02 .rd-item.full {
  grid-column: span 2;
}

/* Thanks + Credits */
.project-02 .project-thanks,
.project-02 .project-credits {
  background: #000000;
  color: #ffffff;
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

.project-02 .project-thanks {
  padding: 180px 0 180px;
}

.project-02 .project-thanks h2 {
  margin: 0;
  font-size: clamp(56px, 7vw, 96px);
  letter-spacing: -0.04em;
  font-weight: 600;
  opacity: 0.94;
}

.project-02 .project-credits {
  margin-top: 0;
  padding: 80px 0 140px;
}

.project-02 .credits-role {
  color: rgba(255, 255, 255, 0.42);
}

.project-02 .credits-name {
  color: #ffffff;
}

.project-02 .credits-note {
  color: rgba(255, 255, 255, 0.38);
}

/* 避免 reveal 干扰底部 */
.project-02 .project-thanks.reveal,
.project-02 .project-credits.reveal,
.project-02 .project-thanks.is-visible,
.project-02 .project-credits.is-visible {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* 响应式 */
@media (max-width: 900px) {
  .project-02 .project-intro-block {
    padding: 64px 0 80px;
  }

  .project-02 .intro-inner,
.project-02 .showcase-stack,
.project-02 .alt-grid,
.project-02 .breakdown-head,
.project-02 .two-by-two {
  width: min(100% - 32px, 1320px);
}

  .project-02 .alt-grid,
  .project-02 .two-by-two {
    grid-template-columns: 1fr;
  }

  .project-02 .rd-item.full {
    grid-column: auto;
  }

  .project-02 .project-section-alt {
    padding: 0 0 88px;
  }

  .project-02 .breakdown-section {
    padding: 20px 0 88px;
  }

  .project-02 .project-thanks {
    padding: 120px 0 130px;
  }
}

@media (max-width: 640px) {
  .project-02 .intro-inner h1 {
    font-size: clamp(34px, 10vw, 54px);
  }

  .project-02 .intro-text p,
  .project-02 .breakdown-text {
    font-size: 16px;
    line-height: 1.82;
  }

  .project-02 .hero-fade {
    height: 80px;
  }

  .project-02 .project-thanks h2 {
    font-size: clamp(40px, 11vw, 60px);
  }
}

/* ===== Project 02 / Process Section ===== */

.project-02 .process-section {
  padding: 56px 0 120px;
  background: #f6f7f3;
}

.project-02 .process-head {
  width: min(100% - 48px, 900px);
  margin: 0 auto 72px;
  text-align: center;
}

.project-02 .process-head h2 {
  margin: 0;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #111111;
}

.project-02 .process-intro {
  max-width: 760px;
  margin: 24px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.62);
}

.project-02 .process-module {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-02 .process-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.34);
}

.project-02 .process-cn {
  max-width: 900px;
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.84);
}

.project-02 .process-en {
  max-width: 900px;
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(0, 0, 0, 0.5);
}

.project-02 .process-grid {
  display: grid;
  gap: 8px;
}

.project-02 .process-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.project-02 .process-card {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #edf0e8;
}

.project-02 .process-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ===== Project 02 / R&D Section ===== */

.project-02 .rnd-section {
  padding: 0 0 140px;
  background: #f6f7f3;
}

.project-02 .rnd-head {
  width: min(100% - 48px, 1320px);
  margin: 0 auto 72px;
  text-align: center;
}

.project-02 .rnd-head h2 {
  margin: 0;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #111111;
}

.project-02 .rnd-intro {
  max-width: 760px;
  margin: 24px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.62);
}

.project-02 .rnd-module {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

.project-02 .rnd-hero {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #edf0e8;
}

.project-02 .rnd-hero img {
  display: block;
  width: 100%;
  height: auto;
}


.project-02 .rnd-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.34);
}

.project-02 .rnd-cn {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.82);
}

.project-02 .rnd-en {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(0, 0, 0, 0.48);
  max-width: 520px;
}


.project-02 .rnd-detail img {
  display: block;
  width: 100%;
  height: 320px;
  object-fit: cover;
}



@media (max-width: 900px) {
  .project-02 .rnd-section {
    padding: 0 0 110px;
  }

  .project-02 .rnd-head,
.project-02 .rnd-module {
  width: min(100% - 32px, 1320px);
}

}

@media (max-width: 640px) {
  .project-02 .rnd-head h2 {
    font-size: clamp(34px, 10vw, 50px);
  }

  .project-02 .rnd-intro,
  .project-02 .rnd-cn {
    font-size: 16px;
    line-height: 1.82;
  }

  .project-02 .rnd-en {
    font-size: 14px;
  }
}

/* ===== Responsive ===== */

@media (max-width: 900px) {
  .project-02 .process-section {
    padding: 48px 0 96px;
  }

  .project-02 .rnd-section {
    padding: 0 0 110px;
  }

  .project-02 .process-head,
.project-02 .process-module,
.project-02 .rnd-head,
.project-02 .rnd-module {
  width: min(100% - 32px, 1320px);
}

  .project-02 .process-grid-3 {
    grid-template-columns: 1fr;
  }

  .project-02 .rnd-layout {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .project-02 .rnd-detail img {
    height: auto;
  }
}

@media (max-width: 640px) {
  .project-02 .process-head h2,
  .project-02 .rnd-head h2 {
    font-size: clamp(34px, 10vw, 50px);
  }

  .project-02 .process-intro,
  .project-02 .rnd-intro,
  .project-02 .process-cn,
  .project-02 .rnd-cn {
    font-size: 16px;
    line-height: 1.82;
  }

  .project-02 .process-en,
  .project-02 .rnd-en {
    font-size: 14px;
  }
}

/* ===== Project 02 / R&D Section Rebuild ===== */

.project-02 .rnd-section {
  padding: 0 0 140px;
  background: #f6f7f3;
}

.project-02 .rnd-head {
  width: min(100% - 48px, 1320px);
  margin: 0 auto 72px;
  text-align: center;
}

.project-02 .rnd-head h2 {
  margin: 0;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #111111;
}

.project-02 .rnd-intro {
  max-width: 760px;
  margin: 24px auto 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.62);
}

.project-02 .rnd-module {
  width: min(100% - 48px, 1320px);
  margin: 0 auto;
}

/* compare */
.project-02 .rnd-compare {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #edf0e8;
  cursor: ew-resize;
  user-select: none;
}

.project-02 .rnd-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  pointer-events: none;
}

.project-02 .rnd-image-bottom {
  z-index: 1;
}

.project-02 .rnd-image-top {
  z-index: 2;
  clip-path: inset(0 50% 0 0);
  -webkit-clip-path: inset(0 50% 0 0);
}

.project-02 .rnd-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(255, 255, 255, 0.96);
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: none;
}

.project-02 .rnd-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.08);
  transform: translate(-50%, -50%);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transition: transform 0.18s ease;
}

.project-02 .rnd-compare.is-dragging .rnd-knob {
  transform: translate(-50%, -50%) scale(0.96);
}

.project-02 .rnd-knob::before,
.project-02 .rnd-knob::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  border-top: 2px solid rgba(0, 0, 0, 0.55);
  border-right: 2px solid rgba(0, 0, 0, 0.55);
}

.project-02 .rnd-knob::before {
  left: 12px;
  transform: translateY(-50%) rotate(-135deg);
}

.project-02 .rnd-knob::after {
  right: 12px;
  transform: translateY(-50%) rotate(45deg);
}

.project-02 .rnd-tag {
  position: absolute;
  bottom: 18px;
  z-index: 4;
  padding: 8px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.72);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  pointer-events: none;
}

.project-02 .rnd-tag-left {
  left: 18px;
}

.project-02 .rnd-tag-right {
  right: 18px;
}

/* text + gif */
.project-02 .rnd-info {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
}

.project-02 .rnd-copy {
  padding: 4px 6px 0 0;
}

.project-02 .rnd-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.34);
}

.project-02 .rnd-cn {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(0, 0, 0, 0.82);
}

.project-02 .rnd-en {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(0, 0, 0, 0.48);
  max-width: 520px;
}

.project-02 .rnd-gif {
  margin: 0;
  line-height: 0;
  overflow: hidden;
  background: #edf0e8;
}

.project-02 .rnd-gif img {
  display: block;
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.project-02 .rnd-module + .rnd-module {
  margin-top: 60px;   /* 保留一点呼吸感，不要 0 */
  padding-top: 0;
  border-top: none;
}

@media (max-width: 900px) {
  .project-02 .rnd-head,
.project-02 .rnd-module {
  width: min(100% - 32px, 1320px);
}

  .project-02 .rnd-info {
    grid-template-columns: 1fr;
  }

  .project-02 .rnd-copy {
    padding: 0;
  }

  .project-02 .rnd-info-reverse .rnd-copy,
  .project-02 .rnd-info-reverse .rnd-gif {
    order: initial;
    padding: 0;
  }

  .project-02 .rnd-gif img {
    height: auto;
  }

  .project-02 .rnd-knob {
    width: 38px;
    height: 38px;
  }

}