/* Project detail page */
.project {
  padding-left: var(--rail-w);
}
.project__head {
  padding: 70px 60px 30px 280px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.project__case {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 14px;
}
.project__title {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.5vw, 80px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
}
.project__sub {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
}
.project__back {
  position: absolute;
  top: 76px;
  left: 60px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  transition: color .25s;
}
.project__back:hover { color: var(--accent); }

/* Sidebar TOC */
.toc {
  position: fixed;
  top: 50%;
  left: calc(var(--rail-w) + 24px);
  transform: translateY(-50%);
  z-index: 40;
  width: 200px;
  max-height: 80vh;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 14px 0;
  scrollbar-width: thin;
}
.toc::-webkit-scrollbar { width: 0; }
.toc__title {
  font-size: 9px;
  color: var(--text-faint);
  letter-spacing: 0.3em;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.toc ol { list-style: none; }
.toc__item {
  display: block;
  padding: 7px 12px 7px 14px;
  color: var(--text-dim);
  border-left: 1px solid var(--border);
  cursor: pointer;
  transition: color .25s, border-color .25s, padding .3s;
  position: relative;
}
.toc__item.lvl-2 { padding-left: 28px; font-size: 10px; color: var(--text-faint); }
.toc__item.is-active {
  color: var(--accent);
  border-left-color: var(--accent);
  padding-left: 18px;
}
.toc__item.lvl-2.is-active { padding-left: 32px; }
.toc__item .num { color: var(--accent); margin-right: 8px; }

/* Sections (each section is full-page tall) */
.project__sections {
  margin-left: 240px;
}
.psec {
  min-height: 100vh;
  padding: 80px 80px;
  position: relative;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.psec__head {
  display: flex; align-items: baseline; gap: 18px;
  margin-bottom: 36px;
}
.psec__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
}
.psec__title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 52px);
  font-weight: 400;
  line-height: 1.05;
}
.psec__lead {
  max-width: 700px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
  margin-bottom: 30px;
}

/* Cover */
.psec--cover {
  align-items: center;
  text-align: center;
  justify-content: center;
}
.psec--cover .psec__title {
  font-size: clamp(32px, 4.8vw, 72px);
}
.psec--cover .cover-frame {
  margin-top: 40px;
  width: min(80vw, 1100px);
  aspect-ratio: 16/9;
  position: relative;
}
.cover-frame .ph {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(255,255,255,0.08), transparent 60%),
    repeating-linear-gradient(135deg, #1c1c1c 0 8px, #131313 8px 16px);
  filter: grayscale(0.6);
}

/* Background text */
.psec--text { padding: 100px 80px; }
.psec--text .psec__body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 60px;
  max-width: 1200px;
}
.psec--text .meta-col {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  line-height: 2;
}
.psec--text .meta-col .lab { color: var(--accent); display: block; margin-bottom: 4px; }
.psec--text .meta-col .item { margin-bottom: 18px; }
.psec--text .text-col p {
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 22px;
}
.psec--text .text-col p:first-child::first-letter {
  font-family: var(--font-serif);
  font-size: 64px;
  float: left;
  line-height: 0.9;
  margin: 6px 12px 0 0;
  color: var(--accent);
}

/* Hero image */
.psec--hero { padding: 0; }
.psec--hero .hero-img {
  flex: 1;
  margin: 60px 80px 60px;
  position: relative;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(230,57,70,0.05), transparent 60%),
    repeating-linear-gradient(45deg, #1a1a1a 0 8px, #0e0e0e 8px 16px);
  border: 1px solid var(--border);
}
.psec--hero .psec__head { padding: 60px 80px 0; margin-bottom: 0; }

/* No-header variant: any psec can be headless (only image / only text) */
.psec--noheader .psec__head { display: none; }
.psec--noheader.psec--hero .hero-img { margin: 80px; }
.psec--noheader.psec--cover { padding: 80px; }
.psec--noheader.psec--slider { padding-top: 80px; }
.psec--noheader.psec--specs { padding-top: 80px; }

/* FULL (沉浸式详情) - 70% 屏幕居中（rail 是浮层不占位） */
.project.p-full {
  padding: 0;                  /* 顶部不留白：第一个模块直接贴顶 */
  width: 70%;
  max-width: 1400px;
  margin: 0 auto;              /* 真正屏幕居中 */
  background: var(--project-bg, #ec7e3b);
  position: relative;
  z-index: 2;                  /* 画布在背景图（z 0）之上 */
  overflow: hidden;            /* 防止子模块横向/纵向溢出画布 */
}
/* 详情页第一个模块顶到画布顶 */
.project.p-full .project__sections > :first-child { margin-top: 0; }
.project.p-full .toc { display: none !important; }
.project.p-full .project__head { display: none; }
.project.p-full .project__sections { margin-left: 0; }
.project.p-full .psec__head { display: none; }
.project.p-full .psec__lead { display: none; }
.project.p-full .spec-title { display: none; }
.project.p-full .spec-cap { display: none; }
.project.p-full .multitall__col::before { display: none; }
.project.p-full .psec--text { display: none; }

/* 可选的小标题 + 文案（页面上方，靠近图，居左）- psec 加 .has-head 启用 */
.project.p-full .psec.has-head .psec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 0 0 6px;             /* 紧贴图片，不留大空 */
  margin: 0;
  text-align: left;
}
.project.p-full .psec.has-head .psec__head .psec__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(0, 0, 0, 0.45);
  flex: 0 0 auto;
}
.project.p-full .psec.has-head .psec__head .psec__title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.88);
  letter-spacing: 0;
  line-height: 1.3;
  margin: 0;
}
.project.p-full .psec.has-head .psec__lead {
  display: block;
  padding: 0;
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.6;
  color: rgba(0, 0, 0, 0.55);
  max-width: 60ch;
  text-align: left;
}

/* 统一：高度按内容自适应（取消 100vh 强制）、无分隔线、透明（让 main 画布色透出） */
.project.p-full .psec {
  height: auto;
  min-height: 0;
  border: none !important;
  background: transparent;       /* 透明 → main 的画布色统一透出 */
  padding: 0;                    /* 默认无 padding，每种模块自己控制 */
  box-sizing: border-box;
  max-width: 100%;
}
.project.p-full .site-foot {
  background: transparent;
  border-top: 1px solid rgba(255,255,255,0.12);
}

/* 大图模块（cover / hero-image）：占满整页，覆盖底色，四边无留白 */
.project.p-full .psec--cover,
.project.p-full .psec--hero {
  padding: 0;
}
.project.p-full .psec--cover .cover-frame,
.project.p-full .psec--hero .hero-img {
  width: 100%;
  height: 100%;
  margin: 0;
  aspect-ratio: auto;
  flex: 1;
}
.project.p-full .psec--cover .cover-frame .ph {
  width: 100%;
  height: 100%;
}
/* 大图角落十字标记隐藏（避免画框感） */
.project.p-full .psec--cover .cover-frame > span,
.project.p-full .psec--hero .hero-img > span {
  display: none;
}

/* 小图模块（slider / specs / multitall）：四周留白 40px，顶部多 60px 让出 topbar */
.project.p-full .psec--slider,
.project.p-full .psec--specs,
.project.p-full .psec--multitall {
  padding: 100px 40px 40px 40px;  /* 上 100 (含 topbar 60) / 下 40 / 左右 40 */
  display: flex;
  flex-direction: column;
}
.project.p-full .psec--slider .slider-shell {
  flex: 1;                     /* 撑满剩余空间，去掉上下大块空白 */
  padding: 0;                  /* 父级已处理边距 */
  gap: 16px;
  align-items: stretch;
}
.project.p-full .psec--specs .specs-grid {
  flex: 1;
  gap: 16px;
}
.project.p-full .psec--multitall .multitall {
  flex: 1;
  padding: 0;
  height: auto;
  gap: 16px;
}

/* slider 内容居中（少图时不再贴左偏右；多图时正常滚动） */
.project.p-full .slider-shell {
  justify-content: center;
}
.project.p-full .slider-shell::before,
.project.p-full .slider-shell::after {
  content: '';
  flex: 0 0 0;
  margin: auto;
}

/* slide-item 高度撑满 shell，宽度按 layout 比例 */
.project.p-full .slide-item {
  height: 100%;
  width: auto;
  flex: 0 0 auto;
}
.project.p-full .slide-item.size-1x1 { aspect-ratio: 1 / 1; }
.project.p-full .slide-item.size-2x1 { aspect-ratio: 1 / 2; }   /* 2 行 1 列 → 高>宽 */
.project.p-full .slide-item.size-3x1 { aspect-ratio: 1 / 3; }
.project.p-full .slide-item.size-1x2 { aspect-ratio: 2 / 1; }   /* 1 行 2 列 → 宽>高 */
.project.p-full .slide-item.size-2x2 { aspect-ratio: 1 / 1; }

/* N×N 卡内子格 gap 8px，无内 padding（让图贴边对齐） */
.project.p-full .slide-item.size-2x1,
.project.p-full .slide-item.size-3x1,
.project.p-full .slide-item.size-1x2,
.project.p-full .slide-item.size-2x2 {
  gap: 8px;
  padding: 0;
}

/* spec-card 撑满高度，内部 canvas flex 1 占满 */
.project.p-full .spec-card {
  display: flex;
  flex-direction: column;
}
.project.p-full .spec-card .spec-canvas {
  flex: 1;
  height: auto;
}

/* 全部图 / 卡片去除边框 */
.project.p-full .slide-item,
.project.p-full .spec-card,
.project.p-full .multitall__col,
.project.p-full .cover-frame,
.project.p-full .psec--hero .hero-img,
.project.p-full .ph,
.project.p-full .spec-canvas {
  border: none !important;
  outline: none;
}
/* 卡片本身不再涂深色面板 - 让 .ph 占满 */
.project.p-full .slide-item,
.project.p-full .spec-card {
  background: transparent;
  padding: 0;
}
.project.p-full .slide-item__cap { display: none; }

/* 真实图片保持原有比例：放到最大、居中、不变形（卡片内多余区域为底色） */
.project.p-full .ph,
.project.p-full .spec-canvas,
.project.p-full .cover-frame .ph,
.project.p-full .psec--hero .hero-img {
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 100%;
  height: 100%;
}

/* multitall 自动滚动（每列不同节奏，类似老虎机） */
.project.p-full .multitall__col {
  overflow: hidden;       /* 取消用户滚动，改自动 */
}
.project.p-full .multitall__strip {
  height: 200%;           /* 内容 = 容器 2 倍，translateY -50% 无缝循环 */
  animation: stripAuto var(--strip-dur, 32s) linear infinite;
}
.project.p-full .multitall__col:nth-child(1) .multitall__strip { --strip-dur: 28s; animation-delay: 0s; }
.project.p-full .multitall__col:nth-child(2) .multitall__strip { --strip-dur: 38s; animation-delay: -7s; }
.project.p-full .multitall__col:nth-child(3) .multitall__strip { --strip-dur: 32s; animation-delay: -3s; }
.project.p-full .multitall__col:nth-child(4) .multitall__strip { --strip-dur: 44s; animation-delay: -12s; }
.project.p-full .multitall__col:nth-child(5) .multitall__strip { --strip-dur: 36s; animation-delay: -5s; }

@keyframes stripAuto {
  from { transform: translateY(0); }
  to   { transform: translateY(-50%); }
}

/* 顶部 fixed bar（详情模式） */
.p-full__topbar {
  position: fixed;
  top: 0; left: var(--rail-w); right: 0;
  height: 60px;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  z-index: 70;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
}
.p-full__topbar .left { display: flex; align-items: center; gap: 16px; }
.p-full__topbar .case { color: var(--accent); }
.p-full__topbar .title {
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: 0;
  color: var(--text);
}
.p-full__topbar .nav-mini {
  display: flex; gap: 14px;
  font-size: 10px;
  color: var(--text-dim);
}
.p-full__topbar .nav-mini .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: background .3s;
  cursor: pointer;
}
.p-full__topbar .nav-mini .dot.is-active { background: var(--accent); }
.p-full__topbar .close {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 16px;
  letter-spacing: 0.22em;
  transition: all .25s;
  display: inline-flex; align-items: center; gap: 8px;
}
.p-full__topbar .close:hover { background: var(--accent); color: #fff; }

/* 详情页底部翻页提示 */
.p-full__navbar {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}
.p-full__navbar button {
  width: 38px; height: 38px;
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(6px);
  transition: all .25s;
}
.p-full__navbar button:hover { color: var(--accent); border-color: var(--accent); }

/* 模块右上角小编号（详情模式） */
.psec__corner-num {
  position: absolute;
  top: 24px; right: 24px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  z-index: 5;
  opacity: 0;
  display: none;
}
.project.p-full .psec__corner-num { display: block; opacity: 0.6; }
.project.p-full .psec:hover .psec__corner-num { opacity: 1; }

/* Slider sections (IP / Posters / Other ref) */
.psec--slider { padding: 80px 0; }
.psec--slider .psec__head { padding: 0 80px; }
.psec--slider .slider-shell {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 0 80px 20px;
  scrollbar-width: thin;
  scroll-snap-type: x mandatory;
}
.psec--slider .slider-shell::-webkit-scrollbar { height: 4px; }
.psec--slider .slider-shell::-webkit-scrollbar-thumb { background: var(--accent); }
.slide-item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  position: relative;
  background: #161616;
  border: 1px solid var(--border);
}
.slide-item .ph {
  background:
    repeating-linear-gradient(135deg, #1f1f1f 0 6px, #141414 6px 12px);
}
.slide-item__cap {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  padding: 10px 12px;
  border-top: 1px solid var(--border);
}
/* layouts: rows × cols within a single slide group */
.slide-item.size-1x1 { width: 60vh; height: 60vh; }
.slide-item.size-2x1 { width: 60vh; height: 60vh; display: grid; grid-template-rows: 1fr 1fr; gap: 4px; padding: 4px; }
.slide-item.size-3x1 { width: 60vh; height: 60vh; display: grid; grid-template-rows: 1fr 1fr 1fr; gap: 4px; padding: 4px; }
.slide-item.size-1x2 { width: 90vh; height: 60vh; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; }
.slide-item.size-2x2 { width: 60vh; height: 60vh; display: grid; grid-template: 1fr 1fr / 1fr 1fr; gap: 4px; padding: 4px; }

/* Design specs (multi-column poster style) */
.psec--specs { padding: 80px; }
.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}
.spec-card {
  background: var(--panel-solid);
  border: 1px solid var(--border);
  padding: 26px;
  position: relative;
}
.spec-card .spec-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 14px;
}
.spec-card .spec-canvas {
  height: 320px;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(255,255,255,0.06), transparent 60%),
    repeating-linear-gradient(45deg, #181818 0 6px, #111 6px 12px);
}
.spec-card .spec-cap {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}

/* Multi-column tall vertical scroll */
.psec--multitall { padding: 0; }
.psec--multitall .psec__head { padding: 60px 80px 30px; }
.multitall {
  flex: 1;
  display: flex;
  gap: 14px;
  padding: 0 80px 60px;
  height: calc(100vh - 200px);
  align-items: stretch;
}
.multitall__col {
  flex: 1;
  overflow-y: auto;
  background: #0e0e0e;
  border: 1px solid var(--border);
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-line) transparent;
}
.multitall__col::-webkit-scrollbar { width: 3px; }
.multitall__col::-webkit-scrollbar-thumb { background: var(--accent-line); }
.multitall__col::before {
  content: attr(data-col);
  position: sticky;
  display: block;
  top: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  background: linear-gradient(180deg, #0e0e0e 70%, transparent);
  z-index: 2;
}
.multitall__strip {
  width: 100%;
  height: 240%;
  background:
    repeating-linear-gradient(0deg, #1a1a1a 0 18px, #131313 18px 36px),
    radial-gradient(ellipse at 50% 30%, rgba(230,57,70,0.1), transparent 50%);
  background-blend-mode: overlay;
  position: relative;
}
.multitall__strip::after {
  content: '';
  position: absolute; inset: 12px;
  border: 1px dashed rgba(255,255,255,0.06);
}

@media (max-width: 1100px) {
  .toc { display: none; }
  .project__sections { margin-left: 0; }
  .project__head { padding: 60px 30px 30px; }
  .project__back { left: 30px; top: 70px; }
  .psec { padding: 60px 30px; min-height: auto; }
  .psec--text .psec__body { grid-template-columns: 1fr; gap: 24px; }
  .psec--specs { padding: 60px 30px; }
  .specs-grid { grid-template-columns: 1fr; }
  .multitall { padding: 0 20px 40px; }
}

/* Project page v2 - dynamic sections */

/* Intro page - single column stack */
.p-intro__blocks-v2 {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 900px;
  margin: 50px 0;
}
.p-intro__blocks-v2 > .psec {
  margin: 0;
  padding: 0;
  min-height: 0;
  height: auto;
  background: transparent;
  border: none;
}
.p-intro__blocks-v2 .psec--single-img img,
.p-intro__blocks-v2 .psec--gallery img {
  width: 100%;
  height: auto;
  display: block;
}
.p-intro__blocks-v2 .psec--gallery {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.p-intro__blocks-v2 .psec--text-v2 h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.005em;
  margin-bottom: 14px;
  color: var(--text);
  position: relative;
  padding-bottom: 12px;
}
.p-intro__blocks-v2 .psec--text-v2 h2::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 36px; height: 2px;
  background: var(--accent);
}
.p-intro__blocks-v2 .psec--text-v2 .text-body p {
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 16px;
  color: var(--text);
}

.p-intro__cta-wrap {
  margin: 40px 0 80px;
  text-align: center;
}

/* ---- 详情页 v2：4 种排版（70vw 画布连续；模块紧贴；支持宽度比例缩放） ---- */
.project.p-full > .project__sections {
  display: flex;
  flex-direction: column;
  gap: 0;                       /* 模块之间默认无间距，缩小后两图自然贴近 */
}

/* 通用：所有 v2 模块清掉默认 100vh，让每种模块自定 */
.project.p-full .psec--single-img,
.project.p-full .psec--strip-v2,
.project.p-full .psec--text-v2,
.project.p-full .psec--gallery {
  height: auto;
  min-height: 0;
}

/* 模块共享变量：--img-scale (0~1)、--module-gap（cell 间距，固定 16px 不再随 scale 缩） */
.project.p-full .psec--single-img.is-full,
.project.p-full .psec--strip-v2,
.project.p-full .psec--multitall-v2,
.project.p-full .psec--text-v2 {
  --img-scale: 1;
  --module-gap: 16px;
}

/* 通用：模块自带 title + body（caption），黑色文字，紧贴下方图 */
.project.p-full .psec__caption {
  width: 100%;
  padding: 0 40px;
  color: #000;
  margin-bottom: 8px;          /* 文字到图间距（≈30%） */
  box-sizing: border-box;
}
.project.p-full .psec__caption h3 {
  font-family: var(--font-sans);
  font-size: var(--fs-lg);     /* 20px：再放大一档 */
  font-weight: 700;
  color: #000;
  letter-spacing: 0;
  line-height: 1.3;
  margin: 0 0 4px;
}
.project.p-full .psec__caption p {
  font-family: var(--font-sans);
  font-size: var(--fs-md);     /* 16px：放大一档 */
  line-height: 1.6;
  color: #000;
  margin: 0;
  white-space: pre-line;
}

/* 1) 大图：宽度按 scale 居中（默认 100% 全幅），高度按图比例自动，封顶 100vh；
      模块外四周无任何间距；caption 出现时只占左右内边距 */
.project.p-full .psec--single-img.is-full {
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: transparent;
  overflow: hidden;
}
.project.p-full .psec--single-img.is-full .psec__caption {
  padding: 48px 40px 8px;     /* 大图模块外 0 padding；caption 顶部留白翻倍 = 48px */
}
/* frame 收缩到 img 实际尺寸（inline-block + max-width / max-height）：
   这样阴影/圆角加在 frame 上时贴合真实图，不会出现"加在画布宽占位符上"的 bug */
.project.p-full .psec--single-img.is-full .si-frame {
  display: inline-block;
  position: relative;
  width: calc(100% * var(--img-scale, 1));
  max-width: 100%;                 /* 永不超出画布宽 */
  line-height: 0;
  vertical-align: top;
}
.project.p-full .psec--single-img.is-full .si-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: none;        /* 取消高度限制：保留原图比例 */
}
/* 取消详情页图片高度封顶，保留原始比例（strip / multitall / dual / imgtext） */
.project.p-full .strip-cell img,
.project.p-full .multitall-v2 img,
.project.p-full .psec--dual .dual-col img,
.project.p-full .psec--imgtext .imgtext__img img {
  max-height: none;
  object-fit: contain;
}

/* 装饰开关：has-decorate 给模块内所有图加 5px 圆角 + 黑色投影 */
/* 注意：si-frame 之前同时给 frame 和 img 加 border-radius，frame 是 block 而 img 是 absolute 100%
   会导致大图右下角出现一块"未铺满"的米白底色块（用户反馈）。
   修正：只给 img 加圆角和投影；frame 容器透明、不加圆角不加 overflow:hidden */
.project.p-full .has-decorate .si-frame {
  background: transparent;
  border-radius: 0;
  overflow: visible;
}
/* has-decorate: rounded corners + shadow
   drop-shadow on opaque jpg leaks outside border-radius, so we use box-shadow */
.project.p-full .has-decorate .si-frame,
.project.p-full .has-decorate .dual-col,
.project.p-full .has-decorate .imgtext__img .img-frame,
.p-intro__main .has-decorate .img-frame {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 8px 8px 20px 0 rgba(0, 0, 0, 0.25);
}
/* img 自身加圆角（即使父级 overflow hidden 失效时仍然有圆角；container-img 同时圆角） */
.project.p-full .has-decorate .si-frame img,
.project.p-full .has-decorate .dual-col img,
.project.p-full .has-decorate .imgtext__img img,
.p-intro__main .has-decorate .img-frame img {
  border-radius: 15px;
}
/* strip 每张图独立加圆角+阴影（wrap 不再收缩到图大小，shadow 直接走 img） */
.project.p-full .has-decorate .strip-cell__wrap img {
  border-radius: 15px;
  box-shadow: 8px 8px 20px 0 rgba(0, 0, 0, 0.25);
}
/* multitall：图本身加 box-shadow + 圆角（每张图独立，列容器不撑满图大小） */
.project.p-full .has-decorate .multitall-v2__strip img {
  border-radius: 15px;
  box-shadow: 8px 8px 20px 0 rgba(0, 0, 0, 0.25);
  margin-bottom: 8px;
}

/* caption 横排：详情页 image / strip / multitall 通用 */
.project.p-full .psec.has-cap-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 60px);
  align-items: flex-start;        /* 文字与图片顶部对齐（不垂直居中） */
  padding: 60px 40px;
}
.project.p-full .psec.has-cap-side .psec__caption-side {
  display: flex;
  align-items: flex-start;
  min-width: 0;
}
.project.p-full .psec.has-cap-side .psec__caption {
  margin: 0;
  padding: 0;
}
.project.p-full .psec.has-cap-side .si-frame,
.project.p-full .psec.has-cap-side .strip-pages,
.project.p-full .psec.has-cap-side .multitall-v2 {
  width: 100%;
}
/* caption 在下方 */
.project.p-full .psec.has-cap-bottom .psec__caption {
  padding-top: 16px;
  padding-bottom: 0;
}
@media (max-width: 720px) {
  .project.p-full .psec.has-cap-side {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 40px 18px;
  }
  .project.p-full .psec.has-cap-right .psec__caption-side { order: -1; }
}

/* imgtext 图文左右排版（详情页用） */
.project.p-full .psec--imgtext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
  padding: 60px 40px;
}
.project.p-full .psec--imgtext .imgtext__img { line-height: 0; }
.project.p-full .psec--imgtext .imgtext__img img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
}
.project.p-full .psec--imgtext .imgtext__copy h3 {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: #111;
  margin-bottom: 12px;
}
.project.p-full .psec--imgtext .imgtext__copy .text-body p {
  font-size: 15px;
  line-height: 1.8;
  color: #222;
  margin-bottom: 10px;
}
@media (max-width: 720px) {
  .project.p-full .psec--imgtext { grid-template-columns: 1fr; padding: 40px 18px; }
}

/* 2) 多图横滑 strip - N×N 网格分页，多余横滑下一页；高度由 JS 按图比例自动算
      宽度比例（width_pct）应用到cell 内图片，cell 占位符（grid 1fr）保持不变 */
.project.p-full .psec--strip-v2 {
  /* 上下 padding 按 scale 缩；上方留白增加一倍（=60×scale），下方保持 30×scale */
  padding: calc(60px * var(--img-scale, 1)) 40px calc(30px * var(--img-scale, 1));
  overflow: visible;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  box-sizing: border-box;
}
/* 多图横滑：rows 行等高（1fr），列宽按图实际比例（height × ratio），
   gap 一致，整体横向溢出可滑；不再分 page，scroll-snap 也取消 */
.project.p-full .strip-pages {
  width: 100%;
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(var(--rows, 1), minmax(0, 1fr));
  grid-auto-columns: max-content;
  gap: var(--module-gap);
  overflow-x: auto;
  overflow-y: hidden;
  height: var(--strip-page-h, 60vh);
  max-height: calc(100vh - 60px);
  /* scrollbar 与底图间距 14px（避免压在图上） */
  box-sizing: content-box;
  padding-bottom: 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-line) transparent;
}
.project.p-full .strip-pages::-webkit-scrollbar { height: 6px; }
.project.p-full .strip-pages::-webkit-scrollbar-track { background: transparent; }
.project.p-full .strip-pages::-webkit-scrollbar-thumb {
  background: var(--accent-line);
  border-radius: 3px;
}
.project.p-full .strip-pages::-webkit-scrollbar-thumb:hover { background: var(--accent); }
/* cell：占满分配到的行高，宽度由内部图按比例撑开 */
.project.p-full .strip-cell {
  background: transparent;
  display: flex;
  align-items: stretch;
  justify-content: center;
  min-width: 0;
}
.project.p-full .strip-cell__wrap {
  display: block;
  height: 100%;
  line-height: 0;
}
.project.p-full .strip-cell__wrap img {
  display: block;
  height: 100%;
  width: auto;
  max-width: none;
  max-height: 100%;
  object-fit: contain;
}

/* 简介页 strip 也支持 N×N（不过简介页通常用 gallery，这里兜底） */
.p-intro__blocks-v2 .strip-pages {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}
.p-intro__blocks-v2 .strip-page {
  flex: 0 0 100%;
  scroll-snap-align: start;
  display: grid;
  grid-template-rows: repeat(var(--rows, 1), 1fr);
  grid-template-columns: repeat(var(--cols, 1), 1fr);
  gap: 12px;
  aspect-ratio: 16/9;
}

/* 3) 多列竖滚 - 容器 100vh（带蒙层），列宽等分，列内图片按列宽 100% 显示，
      高度按原比例自适应，gap 跟图实际尺寸走 */
.project.p-full .psec--multitall-v2 {
  height: 100vh;
  max-height: 100vh;
  padding: 60px 40px 30px;
  box-sizing: border-box;
  overflow: hidden;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}
.project.p-full .multitall-v2 {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(var(--cols-n, 1), 1fr);
  gap: var(--module-gap);
  flex: 1;                       /* 填满 caption 之后剩下的高度 */
  min-height: 0;
}
.project.p-full .multitall-v2__col {
  overflow: hidden;
  position: relative;
  min-width: 0;                  /* grid 列收紧避免 1fr 被图撑爆 */
  /* 两端渐隐蒙版（顶/底） */
  -webkit-mask-image: linear-gradient(180deg,
    transparent 0%, #000 8%, #000 92%, transparent 100%);
  mask-image: linear-gradient(180deg,
    transparent 0%, #000 8%, #000 92%, transparent 100%);
}
.project.p-full .multitall-v2__strip {
  display: flex;
  flex-direction: column;
  gap: var(--module-gap);
  will-change: transform;
  align-items: stretch;
}
.project.p-full .multitall-v2__strip img,
.project.p-full .multitall-v2__strip video {
  display: block;
  width: 100%;                  /* 列宽 100%，不再被 img-scale 缩 */
  height: auto;                 /* 按原图比例自适应 */
  flex-shrink: 0;
  border-radius: 10px;
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.18),
    0 2px 6px rgba(0, 0, 0, 0.10);
  overflow: hidden;
}
@keyframes multitallScrollV2 {
  from { transform: translateY(0); }
  to   { transform: translateY(-50%); }
}

/* 4) 文字模块 */
.project.p-full .psec--text-v2 {
  padding: 60px 40px;
  text-align: left;
  height: auto;
  min-height: 0;
  background: transparent;
}
.project.p-full .psec--text-v2 h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 400;
  letter-spacing: -0.005em;
  margin-bottom: 24px;
  color: var(--text);
}
.project.p-full .psec--text-v2 .text-body p {
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 18px;
  max-width: 65ch;
  color: var(--text);
}

/* （旧版简介页 v2 双栏样式已迁至 project-intro.css） */

/* 项目页：禁用全站 body 暗角 / 扫描线，让画布纯色 */
body[data-page="project-detail"]::before,
body[data-page="project-detail"]::after,
body[data-page="project-intro"]::before,
body[data-page="project-intro"]::after {
  display: none !important;
}

/* 详情页滚动渐显（IntersectionObserver） + 内部元素 stagger */
/* 整体模块：fade + translate + scale + blur */
.project__sections .reveal {
  opacity: 0;
  transform: translateY(48px) scale(0.98);
  filter: blur(6px);
  transition: opacity .95s cubic-bezier(.2,.8,.25,1),
              transform .95s cubic-bezier(.2,.8,.25,1),
              filter .95s cubic-bezier(.2,.8,.25,1);
}
.project__sections .reveal.is-in {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}

/* caption 文字独立 stagger：h3 -> p 依次浮现 */
.project.p-full .psec__caption h3,
.project.p-full .psec__caption p {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.2,.8,.25,1),
              transform .7s cubic-bezier(.2,.8,.25,1);
}
.project.p-full .psec.is-in .psec__caption h3 {
  opacity: 1; transform: translateY(0);
  transition-delay: .15s;
}
.project.p-full .psec.is-in .psec__caption p {
  opacity: 1; transform: translateY(0);
  transition-delay: .26s;
}

/* 大图：clip-path 从上向下揭开（mask reveal） */
.project.p-full .psec--single-img.is-full .si-frame {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.1s cubic-bezier(.2,.8,.25,1);
}
.project.p-full .psec--single-img.is-full.is-in .si-frame {
  clip-path: inset(0 0 0 0);
  transition-delay: .15s;
}

/* strip：cell 左→右依次出现（fade+up+scale） */
.project.p-full .psec--strip-v2 .strip-cell {
  opacity: 0;
  transform: translateY(36px) scale(0.95);
  transition: opacity .7s cubic-bezier(.2,.8,.25,1),
              transform .7s cubic-bezier(.2,.8,.25,1);
  transition-delay: calc(var(--si, 0) * 0.1s + 0.15s);
}
.project.p-full .psec--strip-v2.is-in .strip-cell {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* multitall：列从下方依次"揭开"--列容器 clip-path inset 让内部图卡片一张张出现 */
.project.p-full .psec--multitall-v2 .multitall-v2__col {
  opacity: 0;
  transform: translateY(60px) scale(0.96);
  clip-path: inset(100% 0 0 0);            /* 列默认从底部完全遮住 */
  transition: opacity .9s cubic-bezier(.2,.8,.25,1),
              transform .9s cubic-bezier(.2,.8,.25,1),
              clip-path 1.2s cubic-bezier(.2,.8,.25,1);
  transition-delay: calc(var(--si, 0) * 0.22s + 0.1s);
}
.project.p-full .psec--multitall-v2.is-in .multitall-v2__col {
  opacity: 1;
  transform: translateY(0) scale(1);
  clip-path: inset(0 0 0 0);                /* 揭开 → 图卡一张张露出 */
}
/* 视口外暂停滚动动画（性能优化） */
.project.p-full .psec--multitall-v2:not(.is-in) .multitall-v2__strip {
  animation-play-state: paused !important;
}
/* 浏览器跳过非视口部分的渲染 */
.project.p-full .psec--multitall-v2,
.project.p-full .psec--strip-v2 {
  content-visibility: auto;
  contain-intrinsic-size: 70vh;
}

/* gallery（详情页若有，简介页 gallery 不加；这里用 detail 限定） */
.project.p-full .psec--gallery .img-frame {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .55s, transform .55s;
  transition-delay: calc(var(--si, 0) * 0.08s);
}
.project.p-full .psec--gallery.is-in .img-frame {
  opacity: 1;
  transform: translateY(0);
}

/* 详情页打开过渡（整体淡入） */
@keyframes pFullEnter {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
body[data-page="project-detail"] .project.p-full {
  animation: pFullEnter .5s cubic-bezier(.2,.8,.25,1) both;
}
/* close 是 fixed + translateX(-50%) 居中，不能用 pFullEnter（会覆盖 transform 导致水平偏移） */
@keyframes pFullCloseEnter {
  from { opacity: 0; }
  to   { opacity: 1; }
}
body[data-page="project-detail"] .p-intro__close {
  animation: pFullCloseEnter .5s .15s cubic-bezier(.2,.8,.25,1) both;
}

/* 详情页 dual 双图+文字 */
.project.p-full .psec--dual {
  width: 70vw;
  margin: 0 auto;
  padding: 100px 0;
}
.project.p-full .psec--dual .dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  gap: clamp(20px, 4vw, 60px);
}
.project.p-full .psec--dual .dual-col img {
  width: 100%;
  height: auto;
  display: block;
}
.project.p-full .psec--dual .dual-col--center {
  text-align: center;
  padding: 0 4%;
}
.project.p-full .psec--dual .dual-col--center h3 {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 500;
  line-height: 1.25;
  color: #111;
  letter-spacing: -0.005em;
  margin-bottom: 14px;
}
.project.p-full .psec--dual .dual-col--center .dual-body p {
  font-size: 13px;
  line-height: 1.8;
  color: #333;
  margin-bottom: 8px;
}

/* dual 入场：图片在画布内小距离滑动（不超出画布） + 中间文字渐显 */
.project.p-full .psec--dual {
  overflow: hidden;             /* 限制子图 transform 不溢出画布外（黑色底色区域） */
}
.project.p-full .psec--dual .dual-col--left,
.project.p-full .psec--dual .dual-col--right,
.project.p-full .psec--dual .dual-col--center {
  opacity: 0;
  transition: opacity .9s cubic-bezier(.2,.8,.25,1),
              transform .9s cubic-bezier(.2,.8,.25,1);
}
.project.p-full .psec--dual .dual-col--left  { transform: translateX(-50px); }
.project.p-full .psec--dual .dual-col--right { transform: translateX(50px); }
.project.p-full .psec--dual .dual-col--center { transform: translateY(20px); }
.project.p-full .psec--dual.is-in .dual-col--left {
  opacity: 1; transform: translateX(0); transition-delay: .15s;
}
.project.p-full .psec--dual.is-in .dual-col--right {
  opacity: 1; transform: translateX(0); transition-delay: .15s;
}
.project.p-full .psec--dual.is-in .dual-col--center {
  opacity: 1; transform: translateY(0); transition-delay: .35s;
}
/* dual 外层模块不参与通用 reveal，让子动画自由发挥 */
.project__sections .psec--dual.reveal {
  opacity: 1; transform: none; filter: none;
}

@media (max-width: 900px) {
  .project.p-full .psec--dual { width: 88vw; padding: 60px 0; }
  .project.p-full .psec--dual .dual-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .project.p-full .psec--dual .dual-col--left,
  .project.p-full .psec--dual .dual-col--right { transform: translateY(40px); }
}

/* 详情页 mobile：全宽画布 + 模块去 100vh 限制 */
@media (max-width: 720px) {
  .p-intro { padding: 40px 18px 60px; }

  /* mobile 画布占满整屏宽度（rail 是浮层不占位）；顶部 0 留白让首图贴顶 */
  .project.p-full {
    width: 100%;
    max-width: none;
    margin: 0;
    padding-top: 0;
  }

  /* 所有 v2 模块：去掉 100vh 限制，按内容自适应；横向 padding 收紧 */
  .project.p-full .psec {
    height: auto;
    min-height: 0;
  }
  .project.p-full .psec--single-img.is-full .psec__caption { padding: 32px 18px 6px; }
  .project.p-full .psec__caption { padding: 0 18px; }
  .project.p-full .psec__caption h3 { font-size: 16px; }
  .project.p-full .psec__caption p { font-size: 14px; line-height: 1.6; }

  /* 大图：mobile 不限 100vh，按图自身比例 */
  .project.p-full .psec--single-img.is-full .si-frame {
    max-height: none;
  }

  /* strip 多图横滑：保留分页滑动，padding 收紧 */
  .project.p-full .psec--strip-v2 {
    padding: calc(40px * var(--img-scale, 1)) 14px calc(20px * var(--img-scale, 1));
  }
  .project.p-full .strip-pages { max-height: none; }

  /* multitall：mobile 改成 70vh（垂直滚动列高度） */
  .project.p-full .psec--multitall-v2 {
    height: 70vh;
    max-height: 70vh;
    padding: calc(40px * var(--img-scale, 1)) 14px calc(20px * var(--img-scale, 1));
  }

  /* text 模块 */
  .project.p-full .psec--text-v2 { padding: 60px 18px 30px; }
  .project.p-full .psec--text-v2 h2 { font-size: clamp(22px, 6vw, 30px); }

  /* dual 单列已处理；mobile 再缩 padding */
  .project.p-full .psec--dual { width: 90vw; padding: 40px 0; }

  /* 详情页底部联系页 / 返回按钮等左边距适配 */
  .project__back { left: 16px !important; top: 56px !important; }
}
@media (max-width: 420px) {
  .project.p-full .psec--single-img.is-full .psec__caption { padding: 24px 14px 4px; }
}