/* Variable fonts — one file per family (weights are axis instances, not separate downloads) */
@font-face { font-family: 'Hanken Grotesk'; font-style: normal; font-weight: 100 900; font-display: swap; src: url('/assets/fonts/hanken-grotesk-var.d4881ffc.woff2') format('woff2-variations'), url('/assets/fonts/hanken-grotesk-var.d4881ffc.woff2') format('woff2'); }
@font-face { font-family: 'Newsreader'; font-style: normal; font-weight: 200 800; font-optical-sizing: auto; font-display: swap; src: url('/assets/fonts/newsreader-var.4213b9c9.woff2') format('woff2-variations'), url('/assets/fonts/newsreader-var.4213b9c9.woff2') format('woff2'); }
@font-face { font-family: 'Newsreader'; font-style: italic; font-weight: 200 800; font-optical-sizing: auto; font-display: swap; src: url('/assets/fonts/newsreader-italic-var.d760a52a.woff2') format('woff2-variations'), url('/assets/fonts/newsreader-italic-var.d760a52a.woff2') format('woff2'); }
/* 中日文显示字体由构建时按当前文案裁剪并注入（见 site/tools/fonts.mjs） */

/* ============================================================
   品創 — design system v4「墨帖 / Ink Folio」
   纸上装裱 + 墨面展厅。三声部：宋体700显示级 / 黑体正文 / 熟铜点缀
   ============================================================ */

:root {
  --paper: #EDECE8;
  --paper-2: #F5F4F1;
  --sand: #E3E1DB;
  --carbon: #211F1D;
  --carbon-2: #2A2825;
  --ink: #2B2825;
  --ink-2: #5C5751;
  --label: #6F6961;
  --line: #D8D5CD;
  --line-dark: #383430;
  --on-dark: #EAE7E1;
  --on-dark-2: #B2ACA3;
  --on-dark-label: #8F8981;
  --copper: #7C6547;
  --copper-dark: #B79E7C;
  --on-photo: #F3F1EC;   /* 图片上的文字：柔白，不用纯白 */
  --disp-cjk: 'Noto Serif SC Disp', 'Songti SC', 'STSongti-SC-Bold', 'Hiragino Mincho ProN', 'Noto Serif SC', 'Noto Serif CJK SC', serif;
  --disp-latin: 'Newsreader', 'Times New Roman', serif;
  --disp: var(--disp-latin), var(--disp-cjk);
  --sans-latin: 'Hanken Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --sans-cjk: 'PingFang SC', 'Hiragino Sans GB', 'Hiragino Kaku Gothic ProN', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --sans: var(--sans-latin), var(--sans-cjk);
  --gutter: clamp(24px, 5vw, 96px);
  --w: min(1520px, calc(100vw - 2 * var(--gutter)));
  --head-h: 72px;
  --s-24: 24px; --s-32: 32px; --s-48: 48px; --s-64: 64px; --s-96: 96px; --s-128: 128px;
  --arrow-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 28 10'%3E%3Cpath d='M0 5h25.5M21 1.2 25.6 5 21 8.8' fill='none' stroke='%23000' stroke-width='1' stroke-linecap='square'/%3E%3C/svg%3E");
}
html[lang="ja"] {
  --disp-cjk: 'Noto Serif JP Disp', 'Hiragino Mincho ProN', 'Yu Mincho', YuMincho, 'Noto Serif JP', serif;
  --sans-cjk: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', 'Noto Sans JP', sans-serif;
}
html[lang="en"] { --disp: var(--disp-latin), var(--disp-cjk); }

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 1.0625rem;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}
html:lang(en) body { letter-spacing: 0; line-height: 1.7; }

img { display: block; max-width: 100%; height: auto; }
picture { display: contents; }
a { color: inherit; text-decoration: none; }
p a, .privacy a, .c-channels a, .foot-contact a, .f-note a {
  text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 1.5px;
  transition: color 0.3s;
}
.hero-cap a, .band-cap a, .feat-line a, .pcard-line a { text-decoration: none; }
p a:hover, .privacy a:hover, .c-channels a:hover, .foot-contact a:hover, .f-note a:hover { color: var(--copper); }
::selection { background: var(--ink); color: var(--paper); }

/* display voice */
h1, h2, h3, .disp {
  font-family: var(--disp);
  font-weight: var(--disp-weight, 700);
  letter-spacing: 0;
  text-wrap: balance;
  text-spacing-trim: space-first;
}
html:lang(en) h1, html:lang(en) h2, html:lang(en) h3 { font-weight: 500; letter-spacing: -0.005em; }

@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 0.22s; }

.skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--ink); color: var(--paper); padding: 0.6em 1.2em; font-size: 0.85rem; }
.skip:focus { left: 0; }

/* focus visibility (WCAG 2.4.7 / 2.4.11) — applies to every interactive element */
:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; border-radius: 1px; }
.gallery :focus-visible, .home-cta :focus-visible, .site-foot :focus-visible, .lb :focus-visible { outline-color: var(--copper-dark); }
.f-field input:focus-visible, .f-field select:focus-visible, .f-field textarea:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }

/* ---------------- micro type: label / num ---------------- */
.eyebrow, .sec-label, .proj-sec, .think-k, .proj-meta dt, .c-channels dt, .f-field label, .proj-pn span, .gal-grid figcaption, .lb figcaption, .cmp-tag {
  font-family: var(--sans);
  font-size: 0.8125rem; font-weight: 500;
  letter-spacing: 0.06em; color: var(--label);
}
html:lang(en) .eyebrow, html:lang(en) .sec-label, html:lang(en) .proj-sec, html:lang(en) .think-k, html:lang(en) .proj-meta dt, html:lang(en) .c-channels dt { letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.75rem; }
.num { font-family: var(--disp-latin); font-weight: 500; font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--copper); }

/* ---------------- header (opaque, no ghosting) ---------------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.site-head { position: sticky; top: 0; z-index: 40; background: var(--paper); transition: box-shadow 0.3s, background 0.4s, color 0.4s; }
.site-head.scrolled { box-shadow: 0 1px 0 var(--line); }
.head-in { width: var(--w); margin: 0 auto; height: var(--head-h); display: flex; align-items: center; justify-content: space-between; gap: 2rem; }

/* 字标：汉字 + 其下方的拼音 */
.brand { display: inline-flex; align-items: flex-start; white-space: nowrap; }
.wm { display: inline-flex; align-items: flex-start; gap: 0.42em; color: var(--ink); transition: color 0.3s; }
.wm-ch { display: inline-flex; flex-direction: column; align-items: center; gap: 0.18em; }
.wm-han { font-family: var(--disp-cjk); font-weight: 700; font-size: 1.3rem; line-height: 1; }
.wm-rom { font-family: var(--sans-latin); font-size: 0.5rem; font-weight: 500; letter-spacing: 0.2em; text-transform: lowercase; opacity: 0.62; line-height: 1; text-indent: 0.2em; }
.brand:hover .wm { color: var(--copper); }

/* 首屏之上：页眉完全透明、白字（不是半透明——不会透出正文） */
html.js .site-head.on-hero { background: transparent; box-shadow: none; }
html.js .site-head.on-hero .wm,
html.js .site-head.on-hero .main-nav > a,
html.js .site-head.on-hero .lang-cur,
html.js .site-head.on-hero .menu-btn { color: var(--on-photo); }
html.js .site-head.on-hero .main-nav > a[aria-current="page"] { border-bottom-color: rgba(243, 241, 236, 0.85); }
html.js .site-head.on-hero .lang a { color: rgba(243, 241, 236, 0.72); }
html.js .site-head.on-hero .lang a:hover { color: var(--on-photo); }
html.js .site-head.on-hero .lang-sep { color: rgba(243, 241, 236, 0.4); }
html.js .site-head.on-hero .wm { text-shadow: 0 1px 18px rgba(0, 0, 0, 0.35); }
html.js .site-head.on-hero .main-nav > a { text-shadow: 0 1px 14px rgba(0, 0, 0, 0.4); }
/* 移动端菜单展开时，页眉必须回到实底，否则白字压在纸色菜单上 */
html.js body.menu-open .site-head.on-hero { background: var(--paper); }
html.js body.menu-open .site-head.on-hero .wm,
html.js body.menu-open .site-head.on-hero .menu-btn { color: var(--ink); text-shadow: none; }
.main-nav { display: flex; align-items: center; gap: 2.25rem; }
.main-nav > a { font-size: 0.9375rem; font-weight: 500; color: var(--ink-2); padding: 0.35em 0; border-bottom: 1.5px solid transparent; transition: color 0.25s, border-color 0.25s; }
.main-nav > a:hover { color: var(--ink); }
.main-nav > a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
.lang { display: inline-flex; align-items: center; gap: 0.5em; font-size: 0.8125rem; font-weight: 500; }
.lang a { color: var(--label); transition: color 0.25s; }
.lang a:hover { color: var(--copper); }
.lang-cur { color: var(--ink); }
.lang-sep { color: var(--line); }
.menu-btn { display: none; }

/* ---------------- mobile menu ---------------- */
.mobile-menu[hidden] { display: none; }
.mobile-menu { position: fixed; inset: 0; z-index: 30; background: var(--paper); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: calc(var(--head-h) + 4vh) var(--gutter) 8vh; gap: 3rem; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 1.6rem; }
.mobile-menu nav a { font-family: var(--disp); font-weight: 700; font-size: 1.85rem; }
.lang-mobile { font-size: 1rem; }

/* ---------------- hero: full-bleed photograph ---------------- */
.hero {
  position: relative;
  min-height: 560px;
  height: 100svh;
  max-height: 1080px;
  margin-top: calc(-1 * var(--head-h));
  display: grid;
  isolation: isolate;
  background: var(--carbon);
  overflow: hidden;
}
/* 需高于 .reveal-media{position:relative}（同权重、位置更靠后） */
.hero .hero-media { position: absolute; inset: 0; z-index: 0; }
.hero .hero-media img { width: 100%; height: 100%; object-fit: cover; }
/* 轮播：默认全部叠在一起，只有 .on 那张可见。第一张在 HTML 里就带 .on，
   所以脚本没跑或出错时仍然是一张完整的首屏图，不会白屏 */
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s var(--ease-inout); }
.hero-slide.on { opacity: 1; }
/* 有多张时，图片空白处可点击切换 */
.hero.has-slides { cursor: pointer; }
.hero-inner, .hero-foot { cursor: auto; }
/* 键盘用户的切换按钮：平时隐藏，聚焦时出现在 Scroll 提示旁边 */
.hero-next {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap; border: 0; background: none; color: inherit;
  font-family: var(--sans); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em; cursor: pointer;
}
.hero-next:focus-visible {
  position: static; width: auto; height: auto; margin: 0 0 0 1.5rem; padding: 0.5em 1em;
  clip-path: none; overflow: visible; background: rgba(243, 241, 236, 0.92); color: var(--ink); border-radius: 2px;
}
.hero-cap a { transition: color 0.3s, opacity 0.4s var(--ease-out); }
.hero-cap a.swap { opacity: 0; }
/* 幕：左下加深，保证白字可读；上方轻压，托住页眉 */
.hero-veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(to right, rgba(26, 24, 22, 0.62) 0%, rgba(26, 24, 22, 0.4) 32%, rgba(26, 24, 22, 0.08) 58%, rgba(26, 24, 22, 0) 78%),
    linear-gradient(to top, rgba(26, 24, 22, 0.62) 0%, rgba(26, 24, 22, 0.26) 30%, rgba(26, 24, 22, 0) 56%),
    linear-gradient(to bottom, rgba(26, 24, 22, 0.44) 0%, rgba(26, 24, 22, 0) 24%);
}
.hero-inner {
  position: relative; z-index: 2;
  width: var(--w); margin: 0 auto;
  align-self: end;
  padding-bottom: clamp(7rem, 16vh, 11rem);
  color: var(--on-photo);
  max-width: min(var(--w), 46rem);
  margin-inline: auto 0;
  margin-left: max(var(--gutter), calc((100vw - var(--w)) / 2));
}
.hero-eyebrow { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3em 1em; margin-bottom: var(--s-24); font-size: 0.875rem; font-weight: 500; letter-spacing: 0.06em; color: rgba(243, 241, 236, 0.92); }
.hero-role-latin { font-family: var(--sans-latin); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: rgba(243, 241, 236, 0.62); }
html:lang(en) .hero-role-latin { display: none; }
.hero h1 { font-size: clamp(2.35rem, 4.4vw, 4rem); line-height: 1.24; color: var(--on-photo); margin-bottom: var(--s-32); text-wrap: initial; text-shadow: 0 2px 30px rgba(0, 0, 0, 0.32); }
html:lang(en) .hero h1 { font-size: clamp(2.1rem, 3.4vw, 3.3rem); max-width: 13em; text-wrap: balance; }
html:lang(ja) .hero h1 { font-size: clamp(2rem, 3.7vw, 3.35rem); line-break: strict; }
.hero-lead { font-size: 1.0625rem; line-height: 1.85; color: rgba(243, 241, 236, 0.88); max-width: 30em; }
.hero-actions { display: flex; align-items: center; gap: var(--s-32); flex-wrap: wrap; margin-top: var(--s-48); }
.is-pending img { filter: none; }

/* 首屏主按钮：磨砂玻璃。半透纸色 + 背景模糊，压在照片上仍是纸与墨的关系，
   而不是糊上去的一块实色。不支持 backdrop-filter 的浏览器退回 62% 纸色，照样清楚。 */
.hero .btn-light {
  background: rgba(237, 236, 232, 0.62);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
  border-color: rgba(243, 241, 236, 0.42);
  color: var(--ink);
  box-shadow: 0 1px 24px rgba(26, 24, 22, 0.18);
  transition: background 0.35s var(--ease-out), border-color 0.35s var(--ease-out), color 0.3s;
}
.hero .btn-light::before { display: none; }          /* 铜色上推的填充在玻璃上会显脏 */
.hero .btn-light:hover {
  background: rgba(243, 241, 236, 0.86);
  border-color: rgba(243, 241, 236, 0.7);
  color: var(--ink);
}
/* 不再往下调透明度：按钮可能压在照片最暗处，纸色玻璃低于 0.6 时墨字对比度就不够了
   （0.42 时最坏情况只有 2.9:1，0.62 时 5.0:1）。模糊已经足够让它看起来是玻璃。 */

/* 底栏：左「Scroll」竖标、右项目题注 */
.hero-foot {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 0;
  width: var(--w); margin: 0 auto;
  padding-bottom: clamp(1.5rem, 3.5vh, 2.5rem);
  display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem;
  color: rgba(243, 241, 236, 0.82);
}
.hero-scroll { display: inline-flex; align-items: center; gap: 0.75em; font-family: var(--sans-latin); font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; }
.hero-scroll i { display: block; width: 46px; height: 1px; background: currentColor; transform-origin: left; animation: scrollcue 2.6s var(--ease-inout) infinite; }
@keyframes scrollcue { 0%, 100% { transform: scaleX(0.35); opacity: 0.5; } 50% { transform: scaleX(1); opacity: 1; } }
.hero-cap { font-size: 0.8125rem; letter-spacing: 0.04em; text-align: right; }
.hero-cap a { display: inline-flex; flex-direction: column; align-items: flex-end; gap: 0.25em; transition: color 0.3s; }
.hero-cap a:hover { color: var(--on-photo); }
.hero-cap-meta, .band-cap-meta { font-size: 0.75rem; letter-spacing: 0.05em; opacity: 0.72; }

/* ---------------- breath band: 一侧留白、一侧出血 ---------------- */
.band { position: relative; margin-top: var(--s-128); }
.band-media { display: block; overflow: hidden; }
.band-media img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; filter: saturate(0.96) contrast(1.03); transition: transform 1.2s cubic-bezier(0.2, 0.6, 0.2, 1); }
.band:hover .band-media img { transform: scale(1.02); }
.band-cap { margin-top: 0.9rem; font-size: 0.8125rem; color: var(--label); letter-spacing: 0.04em; }
.band-cap a { display: inline-flex; align-items: baseline; gap: 0.8em; transition: color 0.3s; }
.band-cap a:hover { color: var(--ink); }
.band-right { padding-right: min(16vw, 11rem); }
.band-right .band-cap { text-align: right; }
.band-left { padding-left: min(16vw, 11rem); }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--ink); color: var(--paper); border: 1px solid var(--ink);
  min-height: 3.25rem; padding: 0 1.75rem; border-radius: 2px;
  font-family: var(--sans); font-size: 0.9375rem; font-weight: 500; letter-spacing: 0.02em;
  cursor: pointer; transition: background 0.3s, border-color 0.3s;
}
.btn:hover { background: var(--copper); border-color: var(--copper); color: var(--paper); }
.btn-light { background: var(--on-dark); color: var(--ink); border-color: var(--on-dark); }
.btn-light:hover { background: var(--copper-dark); border-color: var(--copper-dark); color: var(--carbon); }
/* 轻声链接：文字 — 长间距 — 细箭头；下划线只在 hover 出现 */
.textlink, .btn-ghost {
  display: inline-flex; align-items: center; gap: 1.6em;
  font-family: var(--sans); font-size: 0.9375rem; font-weight: 500;
  color: var(--ink); background: none; border: none; cursor: pointer;
  padding: 0.35rem 0; position: relative; transition: color 0.3s, gap 0.35s var(--ease-out);
}
.textlink::before, .btn-ghost::before {
  content: ''; position: absolute; left: 0; bottom: 0.1rem; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.textlink::after, .btn-ghost::after {
  content: ''; width: 28px; height: 10px; flex: none;
  background: currentColor;
  -webkit-mask: var(--arrow-mask) no-repeat center / contain;
  mask: var(--arrow-mask) no-repeat center / contain;
  transition: transform 0.35s var(--ease-out);
}
.textlink:hover, .btn-ghost:hover { color: var(--copper); gap: 1.9em; }
.textlink:hover::before, .btn-ghost:hover::before { transform: scaleX(1); transform-origin: left; }
.textlink:hover::after, .btn-ghost:hover::after { transform: translateX(3px); }
.textlink-light { color: rgba(243, 241, 236, 0.94); }
.textlink-light:hover { color: var(--on-photo); }
/* row button — signature CTA */
.rowbtn {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; min-height: 4rem; padding: 0 0.25rem;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  font-family: var(--sans); font-size: 0.9375rem; font-weight: 500; color: var(--ink);
  position: relative; overflow: hidden; isolation: isolate; transition: color 0.4s;
}
.rowbtn::before { content: ''; position: absolute; inset: 0; background: var(--ink); transform: scaleX(0); transform-origin: left; transition: transform 0.45s cubic-bezier(0.7, 0, 0.2, 1); z-index: -1; }
.rowbtn::after { content: ''; width: 60px; height: 1px; background: currentColor; position: relative; }
.rowbtn::after { box-shadow: none; }
.rowbtn span::after { content: ''; }
.rowbtn:hover { color: var(--paper); }
.rowbtn:hover::before { transform: scaleX(1); }
.rowbtn:hover { padding-inline: 1rem; transition: color 0.4s, padding 0.45s cubic-bezier(0.7, 0, 0.2, 1); }
.rowbtn-dark { border-color: var(--on-dark-2); color: var(--on-dark); }
.rowbtn-dark::before { background: var(--on-dark); }
.rowbtn-dark:hover { color: var(--carbon); }

/* ---------------- sections ---------------- */
.sec { width: var(--w); margin: 0 auto; padding-top: var(--s-128); }
/* 锚点跳转时跳过章节自身的上留白，让章节头正好停在页眉下方（负 scroll-margin 会多滚一段） */
.sec[id], .home-cta[id] { scroll-margin-top: calc(var(--head-h) + 1.25rem - var(--s-128)); }
/* 章节头：序号 · 中文小标 · 贯穿细线 / 拉丁大标题 */
.sec-head { margin-bottom: clamp(2.5rem, 6vh, 4.5rem); }
.sec-head-top { display: flex; align-items: center; gap: 1.1rem; }
.sec-head .sec-num { font-family: var(--disp-latin); color: var(--copper); font-weight: 500; font-size: 0.8125rem; letter-spacing: 0.06em; }
.sec-name { font-family: var(--sans); font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.08em; color: var(--label); }
.sec-rule { flex: 1; height: 1px; background: var(--line); display: block; }
.sec-title {
  font-family: var(--disp-latin); font-weight: 300; font-style: normal;
  font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -0.015em;
  color: var(--ink); margin-top: 0.5rem;
}
html:lang(en) .sec-title { font-weight: 300; }

/* about */
.about-grid { display: grid; gap: var(--s-32) var(--s-96); }
.about-grid h2 { font-size: clamp(1.75rem, 2.6vw, 2.25rem); line-height: 1.35; max-width: 14em; }
.about-head { display: grid; gap: var(--s-32); align-content: start; }
.about-portrait { max-width: 320px; }
.about-portrait img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.about-portrait figcaption { font-size: 0.8125rem; color: var(--label); margin-top: 0.75rem; }
.about-text p { margin-bottom: 1.6em; color: var(--ink-2); }
.about-text p:last-child { margin-bottom: 0; }
.about-langs { font-size: 0.8125rem; color: var(--label); padding-top: 1.2rem; }

/* featured — 大图 + 小字块，垂直居中，交替左右（编辑式节奏） */
.feat-list { display: flex; flex-direction: column; gap: clamp(4rem, 12vh, 9rem); }
.feat { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1.5rem; align-items: center; }
.feat-media { grid-column: 1 / -1; display: block; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(43,40,37,0.07); }
.feat-media img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; filter: saturate(0.96) contrast(1.03); transition: transform 1s cubic-bezier(0.2, 0.6, 0.2, 1); }
.feat:hover .feat-media img { transform: scale(1.02); }
.feat-info { grid-column: 1 / -1; }
.feat-info .num { display: block; margin-bottom: 0.75rem; }
.feat-info .eyebrow { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3em 0.9em; margin-bottom: 0.9rem; }
.feat-info h3 { font-size: clamp(1.5rem, 2vw, 1.9rem); line-height: 1.35; margin-bottom: 1rem; }
.feat-info h3 a { transition: color 0.3s; }
.feat:hover .feat-info h3 a { color: var(--copper); }
.feat-line { color: var(--ink-2); margin-bottom: 1.5rem; max-width: 22em; }
/* 「全部项目」不再用整条实底横杠（太突兀），改成与全站一致的轻声链接，居右收尾 */
.feat-more { margin-top: var(--s-64); padding-top: 1.4rem; border-top: 1px solid var(--line); display: flex; }
.status-tag-muted { color: var(--label); }
.proj-hero { position: relative; }
.proj-hero .cmp-tag.proj-hero-tag { position: absolute; top: auto; bottom: 1.2rem; left: var(--gutter); }
/* 状态：不再做成方框标签（太像后台 UI），改成一枚小圆点 + 小字 */
.status-tag {
  display: inline-flex; align-items: center; gap: 0.45em;
  font-family: var(--sans); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em;
  color: var(--copper); margin-left: 0.85em; vertical-align: 0.28em; white-space: nowrap;
}
.status-tag::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex: none; }

/* philosophy — single column scroll */
.phil-grid { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.phil-item { display: grid; grid-template-columns: 1fr; gap: 0.75rem 3rem; padding: var(--s-48) 0; border-bottom: 1px solid var(--line); }
.phil-num { font-family: var(--disp-latin); font-weight: 500; font-size: 3.5rem; line-height: 1; color: var(--copper); opacity: 0.35; }
.phil-item h3 { font-size: 1.5rem; line-height: 1.6; max-width: 26em; }
.phil-item p { color: var(--ink-2); max-width: 34em; margin-top: 0.75rem; }

.phil-ev { display: inline-block; justify-self: start; margin-top: 0.4rem; font-size: 0.8125rem; font-weight: 500; color: var(--copper); border-bottom: 1px solid transparent; transition: border-color 0.3s; }
.phil-ev:hover { border-color: var(--copper); }

/* approach */
.appr-grid { display: grid; gap: var(--s-48); }
.appr-step { border-top: 1px solid var(--ink); padding-top: 1.5rem; }
.appr-num { display: block; margin-bottom: 1rem; }
.appr-step h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.appr-en { font-family: var(--sans); font-weight: 500; font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--label); margin-left: 0.7em; }
.appr-step ul { list-style: none; }
.appr-step li { padding: 0.35em 0; color: var(--ink-2); font-size: 0.9375rem; display: flex; gap: 0.75em; align-items: baseline; }
.appr-step li::before { content: ''; width: 12px; height: 1px; background: var(--line); flex: none; transform: translateY(-4px); }

.appr-note { margin-top: var(--s-48); padding-top: 1.5rem; border-top: 1px solid var(--line); font-family: var(--disp); font-weight: 700; font-size: 1.2rem; line-height: 1.6; max-width: 30em; color: var(--ink); }
html:lang(en) .appr-note { font-weight: 400; font-style: italic; }

/* services */
.serv-list { display: flex; flex-direction: column; border-top: 1px solid var(--ink); }
.serv-item { display: grid; grid-template-columns: 4rem 1fr; gap: 1rem 2rem; padding: 2rem 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.serv-item:last-child { border-bottom-color: var(--ink); }
.serv-item h3 { font-size: 1.5rem; margin-bottom: 0.4rem; }
.serv-item p { color: var(--ink-2); max-width: 36em; }
.serv-note { margin-top: 1.5rem; font-size: 0.875rem; color: var(--label); }

/* home cta — dark closing band */
.home-cta { width: 100%; background: var(--carbon); color: var(--on-dark); margin-top: var(--s-128); }
.cta-in { width: var(--w); margin: 0 auto; padding: var(--s-128) 0; display: grid; gap: var(--s-48) var(--s-96); }
.home-cta h2 { font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1.3; max-width: 16em; color: var(--on-dark); }
.home-cta p { color: var(--on-dark-2); max-width: 30em; margin-top: 1.25rem; }
.cta-actions { display: flex; align-items: center; gap: var(--s-32); flex-wrap: wrap; margin-top: var(--s-32); }
.cta-actions .textlink { color: var(--on-dark); border-color: var(--on-dark-2); }
.cta-actions .textlink:hover { color: var(--copper-dark); border-color: var(--copper-dark); }
.cta-side { align-self: end; color: var(--on-dark-2); font-size: 0.9375rem; }
.cta-side-title { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.06em; color: var(--on-dark-label); margin-bottom: 0.75rem; }
.cta-flow { list-style: none; counter-reset: cflow; border-top: 1px solid var(--line-dark); }
.cta-flow li { counter-increment: cflow; display: grid; grid-template-columns: 2rem 1fr; gap: 0.5rem; padding: 0.7rem 0; border-bottom: 1px solid var(--line-dark); color: var(--on-dark-2); }
.cta-flow li::before { content: counter(cflow, decimal-leading-zero); font-family: var(--disp-latin); font-weight: 500; font-size: 0.8125rem; color: var(--copper-dark); padding-top: 0.2em; }

/* ---------------- page head ---------------- */
.page-head { width: var(--w); margin: 0 auto; padding: var(--s-96) 0 var(--s-64); }
.page-latin { font-family: var(--disp-latin); font-weight: 300; font-size: clamp(1.5rem, 2.4vw, 2rem); letter-spacing: 0.01em; color: var(--label); line-height: 1; margin-bottom: 0.9rem; display: block; }
html:lang(en) .page-latin { display: none; }
.page-head h1 { font-size: clamp(2.25rem, 4vw, 3.5rem); line-height: 1.22; margin-bottom: 1.25rem; }
.page-lead { color: var(--ink-2); font-size: 1.1875rem; max-width: 32em; }
.err { min-height: 55vh; }
.err .btn { margin-top: 1.5rem; }

/* ---------------- projects list: 1 big + pairs ---------------- */
.proj-grid { width: var(--w); margin: 0 auto; display: grid; gap: var(--s-96) 1.5rem; padding-bottom: var(--s-128); }
.pcard-media { display: block; overflow: hidden; box-shadow: inset 0 0 0 1px rgba(43,40,37,0.07); }
.pcard-media img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; filter: saturate(0.96) contrast(1.03); transition: transform 1s cubic-bezier(0.2, 0.6, 0.2, 1); }
.pcard:hover .pcard-media img { transform: scale(1.02); }
.pcard-wide .pcard-media img { aspect-ratio: 21 / 10; }
.pcard-info { padding-top: 1.25rem; }
.pcard-info .eyebrow { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3em 0.9em; margin-bottom: 0.6rem; }
.pcard-status { color: var(--copper); }
.pcard-status::before { content: '·'; color: var(--label); margin-right: 0.9em; }
.feat-info .pcard-status::before { content: none; }
.pcard-info h2, .pcard-info h3 { font-size: 1.5rem; line-height: 1.4; }
.pcard-wide .pcard-info h2 { font-size: 1.75rem; }
.pcard-info h2 a, .pcard-info h3 a { transition: color 0.3s; }
.pcard:hover h2 a, .pcard:hover h3 a { color: var(--copper); }
.pcard-line { color: var(--ink-2); margin-top: 0.5rem; max-width: 26em; }

/* ---------------- project detail ---------------- */
.proj-hero { width: 100%; }
.proj-hero img { width: 100%; height: min(70vh, 800px); min-height: 340px; object-fit: cover; }
.proj-head { width: var(--w); margin: 0 auto; padding: var(--s-64) 0 0; display: grid; gap: var(--s-48) var(--s-96); }
.proj-head-main .eyebrow { display: block; margin-bottom: 1rem; }
.proj-head h1 { font-size: clamp(2.25rem, 4vw, 3.5rem); line-height: 1.22; margin-bottom: 1rem; }
.proj-tagline { font-family: var(--disp); font-weight: 700; font-size: 1.5rem; line-height: 1.5; color: var(--copper); margin-bottom: 1.5rem; }
html:lang(en) .proj-tagline { font-weight: 400; font-style: italic; }
.proj-lead { max-width: 34em; color: var(--ink-2); font-size: 1.1875rem; line-height: 1.75; }
.proj-meta { border-top: 1px solid var(--ink); align-self: start; display: grid; grid-template-columns: 1fr 1fr; column-gap: 1.5rem; }
.proj-meta div { padding: 0.85rem 0; border-bottom: 1px solid var(--line); display: grid; gap: 0.1rem; align-content: start; }
.proj-meta div:nth-last-child(-n+2) { grid-column: 1 / -1; }
.proj-meta dt { }
.proj-meta dd { font-size: 0.9375rem; line-height: 1.7; color: var(--ink); }

.proj-body { width: var(--w); margin: 0 auto; padding-top: var(--s-96); }
.proj-main { max-width: 42em; }
.proj-sec { display: block; margin: var(--s-64) 0 var(--s-24); }
.proj-main > .proj-sec:first-child { margin-top: 0; }
.proj-main p { max-width: 34em; margin-bottom: 1.4em; color: var(--ink-2); }
.think { list-style: none; border-top: 1px solid var(--ink); }
.think li { display: grid; grid-template-columns: 6rem 1fr; gap: 1.5rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.think li:last-child { border-bottom-color: var(--ink); }
.think-k { color: var(--copper); padding-top: 0.3em; }
.think p { margin: 0; color: var(--ink); max-width: 30em; }

/* gallery — dark exhibition room */
.gallery { width: 100%; background: var(--carbon); color: var(--on-dark); margin-top: var(--s-96); padding: var(--s-128) 0; }
.gal-in { width: var(--w); margin: 0 auto; }
.gal-title { color: var(--on-dark-label); margin: 0 0 var(--s-48); }
.gal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-48) 1.5rem; }
.gal-full { grid-column: 1 / -1; }
.gal-full img { max-height: 82vh; width: 100%; object-fit: cover; }
.gal-half img { aspect-ratio: 4 / 5; object-fit: cover; }
.gal-grid img { width: 100%; cursor: zoom-in; box-shadow: 0 0 0 1px rgba(255,255,255,0.06), 0 24px 64px rgba(0,0,0,0.4); transition: opacity 0.35s; }
.gal-grid img:hover { opacity: 0.94; }
.gal-grid figcaption { color: var(--on-dark-label); margin-top: 0.85rem; }
/* render ↔ built comparison */
.cmp { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; padding: var(--s-48) 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.cmp-head { grid-column: 1 / -1; display: grid; gap: 0.5rem; margin-bottom: 0.5rem; }
.cmp-head h3 { font-size: 1.75rem; color: var(--on-dark); }
.cmp-head p { color: var(--on-dark-2); max-width: 36em; }
.cmp figure { position: relative; }
.cmp img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.cmp-tag { position: absolute; top: 0.9rem; left: 0.9rem; background: rgba(22,20,18,0.72); color: var(--on-dark); padding: 0.3em 0.7em; border-radius: 2px; font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }

/* process (PDF §13-06) */
.process { width: var(--w); margin: 0 auto; padding-top: var(--s-96); }
.process .proj-sec { margin-top: 0; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.process-grid img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; box-shadow: inset 0 0 0 1px rgba(43,40,37,0.07); }
.process-grid figcaption { font-size: 0.8125rem; color: var(--label); margin-top: 0.7rem; }
.process-pending { display: grid; grid-template-columns: minmax(0, 420px) 1fr; gap: 1.5rem var(--s-48); align-items: center; }
.process-pending img { width: 100%; }
.process-pending p { color: var(--label); font-size: 0.9375rem; max-width: 30em; }

/* summary / related / cta / prevnext */
.proj-summary { width: var(--w); margin: 0 auto; padding: var(--s-128) 0 var(--s-96); }
.proj-summary blockquote { font-family: var(--disp); font-weight: 700; font-size: clamp(1.5rem, 2.6vw, 2.25rem); line-height: 1.5; max-width: 24em; border-left: 3px solid var(--copper); padding-left: clamp(1.5rem, 3vw, 2.5rem); }
html:lang(en) .proj-summary blockquote { font-weight: 400; }
.related { width: var(--w); margin: 0 auto; }
.rel-grid { display: grid; gap: var(--s-48) 1.5rem; }
.proj-byline { width: var(--w); margin: var(--s-32) auto 0; font-size: 0.9375rem; color: var(--ink-2); max-width: 46em; }
.proj-byline a { text-decoration: underline; text-underline-offset: 4px; }
.proj-byline a:hover { color: var(--copper); }
.designer-strip { width: var(--w); margin: var(--s-96) auto 0; display: flex; gap: 1.25rem; align-items: center; padding: 1.25rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.designer-strip img { width: 56px; height: 70px; object-fit: cover; flex: none; }
.ds-name { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.04em; color: var(--label); }
.ds-line { font-size: 0.9375rem; color: var(--ink); }
.ds-line a { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.ds-line a:hover { color: var(--copper); }
.proj-cta { width: var(--w); margin: var(--s-64) auto 0; padding: var(--s-64) 0; display: grid; gap: var(--s-32) var(--s-96); align-items: center; }
.proj-cta-sub { color: var(--ink-2); max-width: 30em; margin-top: 0.75rem; }
.proj-cta-ch { font-size: 0.9375rem; color: var(--label); margin-top: 0.75rem; }
.proj-cta-ch a { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.proj-cta h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.3; }
.proj-pn { width: var(--w); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); padding: var(--s-32) 0 var(--s-96); gap: 2rem; }
.proj-pn a { display: grid; gap: 0.4rem; }
.proj-pn strong { font-family: var(--disp); font-weight: 700; font-size: 1.25rem; transition: color 0.3s; }
html:lang(en) .proj-pn strong { font-weight: 500; }
.proj-pn .pn-next { text-align: right; justify-items: end; }
.proj-pn a:hover strong { color: var(--copper); }

/* ---------------- contact ---------------- */
.contact-grid { width: var(--w); margin: 0 auto; display: grid; gap: var(--s-64) var(--s-96); padding-bottom: var(--s-128); }

.c-trust { font-size: 0.9375rem; color: var(--ink-2); margin-bottom: var(--s-32); }
.c-channels div { padding: 0.9rem 0; border-top: 1px solid var(--line); }
.c-channels div:last-child { border-bottom: 1px solid var(--line); }
.c-channels dt { margin-bottom: 0.1rem; }
.c-channels dd { font-size: 1rem; }
.c-langs { margin-top: 1.25rem; font-size: 0.8125rem; color: var(--label); }
.c-block { margin-top: var(--s-48); }
.c-block .proj-sec { margin: 0 0 1rem; }
.c-flow { list-style: none; counter-reset: flow; }
.c-flow li { counter-increment: flow; display: grid; grid-template-columns: 2rem 1fr; gap: 0.5rem; padding: 0.55rem 0; font-size: 0.9375rem; color: var(--ink-2); border-bottom: 1px solid var(--line); }
.c-flow li::before { content: counter(flow, decimal-leading-zero); font-family: var(--disp-latin); font-weight: 500; color: var(--copper); font-size: 0.8125rem; padding-top: 0.2em; }
.c-list { list-style: none; }
.c-list li { padding: 0.35rem 0 0.35rem 1.1rem; position: relative; font-size: 0.9375rem; color: var(--ink-2); }
.c-list li::before { content: ''; position: absolute; left: 0; top: 1.05em; width: 6px; height: 1px; background: var(--copper); }
.c-list-muted li { color: var(--label); }
.c-list-muted li::before { background: var(--line); }
.c-sub { margin-top: 1rem; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.06em; color: var(--label); }
.c-fees { font-size: 0.9375rem; color: var(--ink-2); max-width: 32em; }
.c-copy { display: inline-flex; align-items: center; gap: 0.75em; flex-wrap: wrap; }
.copybtn { font-family: var(--sans); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em; color: var(--copper); background: none; border: 1px solid var(--copper); border-radius: 2px; padding: 0.35em 0.7em; min-height: 28px; cursor: pointer; transition: background 0.25s, color 0.25s; }
.copybtn.failed { color: var(--ink); border-color: var(--ink-2); }
@media (max-width: 860px) { .copybtn { min-height: 36px; padding: 0.5em 0.9em; } }
.copybtn:hover, .copybtn.done { background: var(--copper); color: var(--paper); }
.c-qr { display: block; margin-top: 0.75rem; width: 120px; height: 120px; box-shadow: inset 0 0 0 1px var(--line); }
.c-hint { display: block; font-size: 0.78rem; color: var(--label); margin-top: 0.4rem; }
.f-more { border-top: 1px solid var(--line); padding-top: 0.5rem; }
.f-more summary { cursor: pointer; font-size: 0.875rem; font-weight: 500; color: var(--ink-2); padding: 0.6rem 0; list-style: none; display: flex; align-items: center; gap: 0.6em; }
.f-more summary::-webkit-details-marker { display: none; }
.f-more summary::before { content: '+'; font-family: var(--disp-latin); color: var(--copper); width: 1em; }
.f-more[open] summary::before { content: '−'; }
.f-more-in { display: grid; gap: var(--s-32); padding-top: 1rem; }
.c-form { display: grid; gap: var(--s-32); align-content: start; }
.f-field { display: grid; gap: 0.5rem; }
.f-field label { color: var(--ink); }
.f-req { color: var(--copper); font-size: 0.75rem; margin-left: 0.4em; }
.f-field input, .f-field select, .f-field textarea {
  font-family: var(--sans); font-size: 1rem; color: var(--ink);
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 2px;
  min-height: 3.25rem; padding: 0.7em 1em; line-height: 1.6;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.f-field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23211D18' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem;
}
.f-field textarea { resize: vertical; min-height: 8rem; }
.f-field input::placeholder, .f-field textarea::placeholder { color: #7D7568; }
.f-field input:focus, .f-field select:focus, .f-field textarea:focus { border-color: var(--ink); box-shadow: inset 0 0 0 0.5px var(--ink); }
.c-form .btn { justify-self: stretch; min-height: 3.5rem; }
.f-status { font-size: 0.9375rem; min-height: 1.5em; }
.f-target { display: none; }
.f-target:target { display: block; }
.f-status.ok { color: var(--copper); }
.f-status.err { color: var(--ink-2); }
.f-note { font-size: 0.875rem; color: var(--label); }

.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; gap: 0.7em; align-items: baseline; padding: 0.8rem 0; font-size: 0.9375rem; font-weight: 500; color: var(--ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: '+'; font-family: var(--disp-latin); color: var(--copper); width: 1em; flex: none; }
.faq-item[open] summary::before { content: '−'; }
.faq-item p { font-size: 0.9375rem; color: var(--ink-2); padding: 0 0 1rem 1.7em; max-width: 34em; }
.f-booking { margin-top: -0.5rem; }
.vcard-link { text-decoration: underline; text-underline-offset: 4px; }
.privacy-updated { font-size: 0.8125rem; color: var(--label); margin-bottom: 1.5rem; }
.foot-facts { width: var(--w); margin: 0 auto; padding: 0 0 var(--s-48); }
.foot-facts-title { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.06em; color: var(--on-dark-label); margin-bottom: 0.75rem; }
.foot-facts dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.75rem 2rem; border-top: 1px solid var(--line-dark); padding-top: 1rem; }
.foot-facts dt { font-size: 0.75rem; color: var(--on-dark-label); }
.foot-facts dd { font-size: 0.875rem; color: var(--on-dark-2); }
.lang-notice { position: fixed; left: 0; right: 0; bottom: 0; z-index: 36; display: flex; align-items: center; justify-content: center; gap: 1.5rem; background: var(--paper); color: var(--ink); font-size: 0.875rem; border-top: 1px solid var(--ink); padding: 0.7rem var(--gutter); padding-bottom: calc(0.7rem + env(safe-area-inset-bottom)); }
.lang-notice[hidden] { display: none; }
.lang-notice a { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.lang-notice a[hidden] { display: none; }
.lang-notice-close { background: none; border: none; color: var(--label); font-size: 1.1rem; cursor: pointer; line-height: 1; padding: 0.2rem 0.4rem; }
.proj-links { display: flex; gap: 1.5rem; align-items: center; margin-top: 1.25rem; }
.sharebtn[hidden] { display: none; }

/* privacy */
.privacy { width: min(720px, var(--w)); margin: 0 auto; padding-bottom: var(--s-128); }
.privacy p { margin-bottom: 1.4em; color: var(--ink-2); }

/* ---------------- footer (dark) ---------------- */
.site-foot { background: var(--carbon); color: var(--on-dark-2); padding-top: var(--s-64); }
/* 首页的深色 CTA 紧接着深色页脚，两段留白会叠成一大片空 —— 这里不再额外加顶部间距 */
.page-home .site-foot { padding-top: 0; }
/* 三栏共用一条顶线，三栏的小标签落在同一条基线上——对齐靠这条线建立 */
.foot-in { width: var(--w); margin: 0 auto; display: grid; gap: var(--s-48) var(--s-64); padding: var(--s-48) 0; border-top: 1px solid var(--line-dark); align-items: baseline; }
.foot-col { display: grid; gap: 0.55rem; align-content: start; justify-items: start; }
/* 三栏等分、一律左对齐：三块的起始位置正好落在 0 / 1/3 / 2/3 三条竖线上 */
.foot-contact { justify-items: start; text-align: left; }
.foot-k { font-family: var(--sans); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.12em; color: var(--on-dark-label); margin-bottom: 0.6rem; }
/* 字标在深底上要看得清 */
.foot-brand .wm { color: var(--on-dark); gap: 0.5em; }
.foot-brand .wm-han { font-size: 1.5rem; }
.foot-brand .wm-rom { opacity: 1; color: var(--on-dark-label); }
.foot-brand p { margin-top: 0.9rem; font-size: 0.875rem; color: var(--on-dark-2); }
.foot-nav a { font-size: 0.9375rem; font-weight: 500; color: var(--on-dark); transition: color 0.3s; }
.foot-nav a:hover { color: var(--copper-dark); }
.foot-contact { font-size: 0.9375rem; }
.foot-contact a { color: var(--on-dark); text-decoration-color: var(--on-dark-label); }
.foot-contact a:hover { color: var(--copper-dark); }
.foot-langs { font-size: 0.8125rem; color: var(--on-dark-label); }
.foot-base { width: var(--w); margin: 0 auto; border-top: 1px solid var(--line-dark); display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; align-items: center; padding: 1.5rem 0 2rem; font-size: 0.8125rem; color: var(--on-dark-label); }
.foot-base .lang a { color: var(--on-dark-label); }
.foot-base .lang a:hover { color: var(--copper-dark); }
.foot-base .lang .lang-cur { color: var(--on-dark); }
.foot-base .lang-sep { color: var(--line-dark); }
.foot-base a:hover { color: var(--on-dark); }

/* ---------------- mobile sticky contact bar ---------------- */
.stickybar { display: none; }
@media (max-width: 860px) {
  /* 常驻联系条压在正文上，同样做成磨砂玻璃；不支持时退回 96% 纸色 */
  .stickybar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 35; display: grid; grid-template-columns: 1fr auto; align-items: stretch; background: rgba(237, 236, 232, 0.96); -webkit-backdrop-filter: blur(14px) saturate(1.1); backdrop-filter: blur(14px) saturate(1.1); border-top: 1px solid var(--ink); transform: translateY(100%); transition: transform 0.4s var(--ease-out); padding-bottom: env(safe-area-inset-bottom); }
  @supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
    .stickybar { background: rgba(237, 236, 232, 0.82); }
  }
  .stickybar.show { transform: none; }
  .sb-talk { display: flex; align-items: center; padding: 0.95rem var(--gutter); font-size: 0.9375rem; font-weight: 500; color: var(--ink); }
  .sb-wx { display: flex; align-items: center; font-family: var(--sans); font-size: 0.8125rem; font-weight: 500; color: var(--copper); background: none; border: none; border-left: 1px solid var(--line); padding: 0 var(--gutter); cursor: pointer; }
  .sb-wx.done { color: var(--ink); }
  .cta-in { padding: var(--s-96) 0 var(--s-48); }
  .foot-in { padding: var(--s-32) 0; }
  /* 给固定联系条留的空间只加在页脚上：main 是纸色，加在它身上会在深色 CTA 与深色页脚之间夹出一条白带 */
  body.has-sticky .foot-base { padding-bottom: calc(2rem + 3.6rem + env(safe-area-inset-bottom)); }
  .designer-strip img[src$=".svg"] { display: none; }
}

/* ---------------- lightbox ---------------- */
.lb { position: fixed; inset: 0; z-index: 60; background: rgba(22, 20, 18, 0.96); display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 1.1rem; padding: 4vh 4vw; }
.lb img { max-width: 100%; max-height: 84vh; width: auto; height: auto; box-shadow: 0 24px 90px rgba(0,0,0,0.5); }
.lb figcaption { color: var(--on-dark-2); }
.lb button { position: absolute; background: none; border: none; color: var(--on-dark-2); font-family: var(--sans); font-weight: 500; font-size: 0.8125rem; letter-spacing: 0.14em; cursor: pointer; padding: 1rem; transition: color 0.3s; }
.lb button:hover { color: var(--copper-dark); }
.lb-close { top: 1.2rem; right: 1.6rem; }
.lb-prev { left: 0.8rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 0.8rem; top: 50%; transform: translateY(-50%); }


/* ============================================================
   MOTION — quiet, expensive, consistent
   one easing family, one duration scale
   ============================================================ */
:root {
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);       /* expo-out: fast start, long settle */
  --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-reveal: cubic-bezier(0.77, 0, 0.175, 1);  /* for wipes */
  --d-fast: 0.3s; --d-base: 0.6s; --d-slow: 1s; --d-glacial: 8s;
}

/* --- global link / control feedback --- */
a, button { -webkit-tap-highlight-color: transparent; }
.main-nav > a { position: relative; border-bottom: none; }
.main-nav > a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform var(--d-fast) var(--ease-out);
}
.main-nav > a:hover::after, .main-nav > a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }

/* 轻声链接的动效在上方按钮区已定义（下划线 hover 才出现）；此处只保留定位基准 */
.textlink, .btn-ghost { position: relative; }

.btn { position: relative; overflow: hidden; isolation: isolate; transition: color var(--d-fast) var(--ease-out), border-color var(--d-fast) var(--ease-out), transform var(--d-fast) var(--ease-out); }
.btn::before { content: ''; position: absolute; inset: 0; background: var(--copper); transform: translateY(101%); transition: transform 0.5s var(--ease-out); z-index: -1; }
.btn:hover { background: var(--ink); border-color: var(--copper); }
.btn:hover::before { transform: translateY(0); }
.btn:active { transform: scale(0.985); }
.btn-light::before { background: var(--copper-dark); }
.btn-light:hover { background: var(--on-dark); border-color: var(--copper-dark); color: var(--carbon); }

/* --- media reveal: wipe + settle --- */
.reveal-media { position: relative; overflow: hidden; }
.reveal-media img { transform: scale(1.06); transition: transform var(--d-slow) var(--ease-out), opacity var(--d-fast); }
html.js .reveal-media::after {
  content: ''; position: absolute; inset: 0; background: var(--paper);
  transform-origin: bottom; transform: scaleY(1); pointer-events: none;
}
html.js .gallery .reveal-media::after, html.js .cmp .reveal-media::after { background: var(--carbon); }
/* keyframe animations run unconditionally once the class lands — immune to skipped transitions */
html.js .reveal-media.rin::after, html.js .reveal-media.reveal-now::after { animation: wipeUp 1s var(--ease-reveal) forwards; }
html.js .reveal-media.rin img, html.js .reveal-media.reveal-now img { animation: settleIn var(--d-slow) var(--ease-out) forwards; }
@keyframes wipeUp { from { transform: scaleY(1); } to { transform: scaleY(0); } }
@keyframes wipeLeft { from { transform: scaleX(1); } to { transform: scaleX(0); } }
@keyframes settleIn { from { transform: scale(1.06); } to { transform: scale(1); } }
/* hover: gentle push-in on top of settle */
.feat-media, .pcard-media { transition: transform 1.2s var(--ease-out); }
.feat:hover .feat-media, .pcard:hover .pcard-media { transform: scale(1.012); }
.gal-grid img { transition: transform var(--d-slow) var(--ease-out), opacity var(--d-fast); }
.gal-grid figure:hover img { transform: scale(1.015); opacity: 1; }

/* --- text/element reveal (generic) --- */
html.js [data-r]:not(.reveal-media) { opacity: 0; transform: translateY(24px); transition: opacity var(--d-base) var(--ease-out), transform var(--d-base) var(--ease-out); }
html.js [data-r]:not(.reveal-media).rin { opacity: 1; transform: none; }
/* stagger siblings within a revealed group */
html.js .phil-item.rin, html.js .appr-step.rin, html.js .serv-item.rin { transition-delay: calc(var(--i, 0) * 90ms); }

/* --- hero choreography (home) --- */
html.js .hero .h-in { opacity: 0; transform: translateY(14px); animation: fadeUp 0.55s var(--ease-out) forwards; animation-delay: calc(0.08s + var(--i) * 0.07s); }
.hero h1 .line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero h1 .line-in { display: block; }
html.js .hero h1 .line-in { transform: translateY(110%); animation: lineRise 0.7s var(--ease-out) forwards; animation-delay: calc(0.1s + var(--i) * 0.07s); }
@keyframes fadeUp { to { opacity: 1; transform: none; } }
@keyframes lineRise { to { transform: translateY(0); } }
html.js .hero .reveal-media::after { transform-origin: left; transform: scaleX(1); }
html.js .hero .reveal-media.reveal-now::after { animation: wipeLeft 0.7s var(--ease-reveal) 0.1s forwards; }
html.js .hero .reveal-media img { transform: scale(1.05); }
html.js .hero .reveal-media.reveal-now img { animation: settleIn 0.9s var(--ease-out) 0.1s forwards; }
/* (breathe removed — PDF asks for a quiet visual rhythm) */
/* 底栏（Scroll 提示 + 项目题注）在首屏动画之后淡入 —— 它在 .reveal-media 之外，需单独驱动 */
html.js .hero-foot > * { opacity: 0; transform: translateY(6px); animation: fadeUp 0.5s var(--ease-out) 0.85s forwards; }
html.js .hero-foot .hero-cap { animation-delay: 0.95s; }

/* --- header: hide on scroll down, show on up --- */
.site-head { transition: transform 0.45s var(--ease-out), box-shadow 0.3s, background 0.35s var(--ease-out); }
.site-head.hide { transform: translateY(-100%); }

/* --- row button arrow --- */
.rowbtn::after { transition: transform 0.45s var(--ease-out), width 0.45s var(--ease-out); }
.rowbtn:hover::after { width: 84px; }

/* --- status tag --- */
.status-tag { transition: color var(--d-fast); }

/* --- page transitions (View Transitions API) --- */
::view-transition-old(root) { animation: vtOut 0.28s var(--ease-inout) both; }
::view-transition-new(root) { animation: vtIn 0.42s var(--ease-out) both; }
@keyframes vtOut { to { opacity: 0; transform: translateY(-6px); } }
@keyframes vtIn { from { opacity: 0; transform: translateY(10px); } }

/* --- lightbox --- */
.lb { animation: lbIn 0.35s var(--ease-out); }
.lb img { animation: lbImg 0.5s var(--ease-out); }
@keyframes lbIn { from { opacity: 0; } }
@keyframes lbImg { from { opacity: 0; transform: scale(0.97); } }

/* --- form focus glow --- */
.f-field input, .f-field select, .f-field textarea { transition: border-color var(--d-fast), box-shadow var(--d-fast); }

/* --- safety: forced end-state when an entrance animation never played --- */
html.js [data-r].reveal-static, html.js .reveal-static { opacity: 1 !important; transform: none !important; }
html.js .reveal-static .line-in, html.js .reveal-static.h-in { opacity: 1 !important; transform: none !important; animation: none !important; }
html.js .reveal-media.reveal-static::after { display: none !important; }
html.js .reveal-media.reveal-static img { transform: none !important; }

/* --- reduced motion: everything settles instantly --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; animation-delay: 0s !important; transition-duration: 0.001s !important; }
  html.js [data-r], html.js .hero .h-in, html.js .hero h1 .line-in { opacity: 1; transform: none; }
  html.js .reveal-media::after { display: none; }
  html.js .reveal-media img { transform: none; }
  
}

/* ---------------- responsive ---------------- */
@media (min-width: 861px) {
  /* 右栏定宽：正文右边缘正好落在章节细线的右端，行长也控制在 36 字左右 */
  .about-grid { grid-template-columns: minmax(17rem, 1fr) minmax(0, 36em); }
  .feat-media, .feat-info { grid-row: 1; }
  .feat-media { grid-column: 1 / 8; }
  .feat-info { grid-column: 9 / 12; }
  .feat-alt .feat-media { grid-column: 6 / -1; }
  .feat-alt .feat-info { grid-column: 2 / 5; }
  .phil-item { grid-template-columns: 8rem 1fr; }
  .phil-item h3, .phil-item p, .phil-item .phil-ev { grid-column: 2; }
  .phil-num { grid-row: 1 / span 3; }
  .appr-grid { grid-template-columns: repeat(3, 1fr); gap: var(--s-48); }
  .cta-in { grid-template-columns: 7fr 5fr; }
  .proj-grid { grid-template-columns: 1fr 1fr; }
  .pcard-wide { grid-column: 1 / -1; }
  .proj-head { grid-template-columns: 7fr 4fr; }
  .rel-grid { grid-template-columns: 1fr 1fr; }
  .proj-cta { grid-template-columns: 1fr auto; }
  .contact-grid { grid-template-columns: 7fr 4fr; }
  .foot-in { grid-template-columns: repeat(3, 1fr); }
  .mobile-menu { display: none; }
}

@media (max-width: 860px) {
  :root { --head-h: 60px; }
  body { font-size: 1rem; }
  .main-nav { display: none; }
  .menu-btn { display: inline-flex; align-items: center; gap: 0.8em; background: none; border: none; color: inherit; font-family: var(--sans); font-size: 0.875rem; font-weight: 500; cursor: pointer; padding: 0.5em 0; }
  .mb-bars { display: flex; flex-direction: column; gap: 5px; }
  .menu-btn i { display: block; width: 22px; height: 1.5px; background: currentColor; transition: transform 0.35s ease; }
  .menu-btn[aria-expanded="true"] i:first-of-type { transform: translateY(3.25px) rotate(45deg); }
  .menu-btn[aria-expanded="true"] i:last-of-type { transform: translateY(-3.25px) rotate(-45deg); }
  body.menu-open { overflow: hidden; }
  .hero { min-height: 520px; }
  .hero-inner { padding-bottom: clamp(6rem, 20vh, 9rem); margin-left: var(--gutter); margin-right: var(--gutter); }
  .hero-foot { align-items: flex-end; }
  .hero-cap { max-width: 60%; }
  .band { margin-top: var(--s-96); }
  .band-right, .band-left { padding-left: 0; padding-right: 0; }
  .band-media img { aspect-ratio: 3 / 2; }
  .band-cap { padding-inline: var(--gutter); }
  .band-right .band-cap { text-align: left; }
  .sec-title { font-size: clamp(2.1rem, 11vw, 3rem); }
  .feat { gap: 1rem; }
  .feat-media { grid-row: 1; }
  .feat-info { grid-row: 2; }
  .phil-num { font-size: 2.5rem; }
  .gal-grid { grid-template-columns: 1fr; }
  .gal-half { grid-column: 1 / -1; }
  .cmp { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .process-pending { grid-template-columns: 1fr; }
  .think li { grid-template-columns: 1fr; gap: 0.35rem; padding: 1.1rem 0; }
  .proj-pn strong { font-size: 1rem; }
  .lb-prev, .lb-next { top: auto; bottom: 1rem; transform: none; }
  .sec { padding-top: var(--s-96); }
}

/* ---- 字体方案（后台可切换） ---- */
@font-face{font-family:'PC Disp ZH';font-style:normal;font-weight:700;font-display:swap;src:url('/assets/fonts/cjk-ink-zh.b8f9c5a0.woff2') format('woff2');}
@font-face{font-family:'PC Disp JA';font-style:normal;font-weight:700;font-display:swap;src:url('/assets/fonts/cjk-ink-ja.f8278143.woff2') format('woff2');}
:root{--disp-weight:700;--tscale:1;--disp-latin:'Newsreader', 'Times New Roman', serif;--disp-cjk:'PC Disp ZH','Songti SC', 'STSongti-SC-Bold', 'Noto Serif SC', serif;}
html{font-size:calc(100% * var(--tscale,1));}
html[lang="ja"]{--disp-cjk:'PC Disp JA','Hiragino Mincho ProN', 'Yu Mincho', YuMincho, 'Noto Serif JP', serif;}