/* VenturesLab 创业工场, design d07: the printed annual, set as a sheet of seal impressions.
   Two inks on bone paper: the seal green of the firm's logo and a deep seal green for every word. */

@font-face { font-family: "Gambarino"; src: url("fonts/gambarino-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "General Sans"; src: url("fonts/general-sans-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "General Sans"; src: url("fonts/general-sans-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "General Sans"; src: url("fonts/general-sans-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
/* On Chinese pages the Latin faces leave curly quotes, dashes, the ellipsis and the middle dot to the
   CJK face, so Chinese punctuation keeps its full width. */
@font-face { font-family: "Gambarino Zh"; src: url("fonts/gambarino-400.woff2") format("woff2"); font-weight: 400; font-display: swap; unicode-range: U+0000-00B6, U+00B8-2012, U+2015-2017, U+201A-201B, U+201E-2025, U+2027-FFFF; }
@font-face { font-family: "General Sans Zh"; src: url("fonts/general-sans-400.woff2") format("woff2"); font-weight: 400; font-display: swap; unicode-range: U+0000-00B6, U+00B8-2012, U+2015-2017, U+201A-201B, U+201E-2025, U+2027-FFFF; }
@font-face { font-family: "General Sans Zh"; src: url("fonts/general-sans-500.woff2") format("woff2"); font-weight: 500; font-display: swap; unicode-range: U+0000-00B6, U+00B8-2012, U+2015-2017, U+201A-201B, U+201E-2025, U+2027-FFFF; }
@font-face { font-family: "General Sans Zh"; src: url("fonts/general-sans-600.woff2") format("woff2"); font-weight: 600; font-display: swap; unicode-range: U+0000-00B6, U+00B8-2012, U+2015-2017, U+201A-201B, U+201E-2025, U+2027-FFFF; }

:root {
  --bone: #ecebe6;
  --surface: #e2e1d9;
  --paper: #ffffff;
  --ink: #12300c;
  --muted: #485a40;
  --seal: #45a72c;
  --seal-ink: #0b2207;
  --deep: #12300c;
  --on-deep: #ecebe6;

  --cjk-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", "WenQuanYi Micro Hei";
  --cjk-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Noto Serif SC", "Source Han Serif SC";
  --f-display: "Gambarino", var(--cjk-sans), serif;
  --f-text: "General Sans", var(--cjk-sans), sans-serif;

  --step-small: clamp(0.8125rem, 0.79rem + 0.1vw, 0.875rem);
  --step-body: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
  --step-lead: clamp(1.25rem, 1.1rem + 0.7vw, 1.625rem);
  --step-head: clamp(2rem, 1.3rem + 3.2vw, 4rem);
  --step-display: clamp(4rem, 8.3vw, 8rem);

  --m: clamp(1rem, 2.2vw, 2rem);
  --gap-axis: clamp(1.5rem, 3.4vw, 3rem);
  --section: clamp(6rem, 11vw, 10rem);
  --bar: 4rem;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
}
html.zh {
  --f-display: "Gambarino Zh", var(--cjk-serif), var(--cjk-sans), serif;
  --f-text: "General Sans Zh", var(--cjk-sans), sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; background: var(--bone); }
body {
  margin: 0; background: var(--bone); color: var(--ink);
  font-family: var(--f-text); font-size: var(--step-body); line-height: 1.55; font-weight: 400;
  font-synthesis: none; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}
html.zh body { line-height: 1.85; letter-spacing: 0.02em; line-break: strict; }
img, video { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration-line: underline; text-decoration-thickness: 0.08em; text-underline-offset: 0.22em; text-decoration-color: color-mix(in srgb, currentColor 45%, transparent); transition: text-decoration-color 180ms ease, color 180ms ease, background-color 180ms ease; }
::selection { background: var(--seal); color: var(--seal-ink); }
:focus-visible { outline: 3px solid var(--seal); outline-offset: 3px; }
.skip { position: absolute; left: var(--m); top: -100px; z-index: 10; background: var(--ink); color: var(--bone); padding: 0.6em 1em; }
.skip:focus { top: 0.5rem; }

/* ---------- type roles ---------- */
.title, .head, .prod__name, .office__city, .cell__seal, .tile__name, .sig__name, .close__mail, .strategy__rows dt, .seal text {
  font-family: var(--f-display); font-weight: 600; font-synthesis: none;
}
.title { font-size: var(--step-display); line-height: 0.95; letter-spacing: -0.02em; text-wrap: balance; }
html.zh .title { line-height: 1.1; letter-spacing: 0.01em; word-break: keep-all; }
.head { font-size: var(--step-head); line-height: 1; letter-spacing: -0.015em; text-wrap: balance; }
html.zh .head { line-height: 1.18; letter-spacing: 0.02em; }
.head.caps { letter-spacing: 0.03em; }
.lead, .statement { font-size: var(--step-lead); line-height: 1.38; text-wrap: pretty; }
html.zh .lead, html.zh .statement { line-height: 1.7; }
.prose p, .prose li { text-wrap: pretty; }
.prose p + p, .prose ul + p, .prose p + ul { margin-top: 1em; }
.prose a { text-decoration-color: var(--seal); }
.prose ul li { position: relative; padding-left: 1.5em; }
.prose ul li + li { margin-top: 0.35em; }
.prose ul li::before { content: ""; position: absolute; left: 0.2em; top: 0.72em; width: 0.5em; height: 0.5em; background: var(--seal); }

/* ---------- the page grid: one axis at 42% ---------- */
.opening, .letter, .strategy, .sayings, .reach, .bio, .bp, .wechat, .offices, .prod {
  display: grid; grid-template-columns: minmax(0, 42fr) minmax(0, 58fr); padding-inline: var(--m);
}
main { padding-bottom: var(--section); }
main > section + section, main > .prods, .prods + * { margin-top: var(--section); }

/* ---------- masthead: bar + mosaic ---------- */
.masthead { position: relative; }
.bar { display: flex; align-items: stretch; height: var(--bar); background: var(--bone); }
.bar__mark { flex: 0 0 auto; display: block; width: 12rem; background: var(--paper); text-decoration: none; overflow: hidden; }
.bar__mark img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.bar__tab { display: flex; align-items: center; background: var(--seal); color: var(--seal-ink); width: calc(var(--m) + 0.42 * (100% - 2 * var(--m)) - 12rem); padding-inline: 1.5rem; }
.bar__tab ul { display: flex; gap: clamp(1rem, 2vw, 2rem); }
.bar__tab a, .bar__menu a { font-weight: 500; font-size: 1rem; text-decoration-color: transparent; padding-block: 0.6rem; }
.bar__tab a[aria-current="page"] { text-decoration-color: currentColor; text-decoration-thickness: 0.12em; }
.bar__end { margin-left: auto; display: flex; align-items: stretch; gap: clamp(1rem, 2vw, 1.75rem); }
.bar__end .bar__lang { align-self: center; }
.button--bar { min-height: var(--bar); padding-inline: clamp(1.25rem, 2.2vw, 2rem); }
.bar__lang { font-weight: 500; text-decoration-color: transparent; padding: 0.6rem 0.2rem; }
.bar__menu { display: none; }

.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 2.875rem; padding: 0 1.4rem;
  background: var(--ink); color: var(--bone); border: 0; border-radius: 0; font: 500 1rem/1 var(--f-text); letter-spacing: 0.02em;
  text-decoration: none; cursor: pointer; transition: transform 140ms var(--ease-out), background-color 180ms ease, color 180ms ease;
}
.button:active { transform: scale(0.97); }

.mosaic { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: repeat(2, clamp(9.5rem, 22svh, 14.5rem)); background: var(--bone); }
.cell { position: relative; overflow: hidden; margin: 0; min-width: 0; }
.cell--photo { background: var(--surface); }
.cell__media { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.06); mix-blend-mode: multiply; }
.cell__cap { position: absolute; left: 0; top: 0; background: var(--deep); color: var(--on-deep); font-size: var(--step-small); line-height: 1.3; letter-spacing: 0.02em; padding: 0.4rem 0.75rem 0.4rem 1.125rem; }
.cell--seal { display: grid; place-items: center; background: var(--deep); color: var(--on-deep); padding: 0.75rem; text-align: center; }
.cell__seal { font-size: var(--step-head); line-height: 1.05; letter-spacing: 0.04em; }
html.en .cell__seal { letter-spacing: -0.01em; font-size: clamp(1.25rem, 2.5vw, 2.5rem); }
.tile { position: relative; display: grid; place-items: center; overflow: hidden; text-decoration: none; }
.tile--paper { background: var(--paper); color: var(--ink); }
.tile--deep { background: var(--deep); color: var(--on-deep); }
.tile--seal { background: var(--seal); }
.tile img { object-fit: contain; transition: transform 360ms var(--ease-out); }
.logo--wide { width: 68%; height: 40%; }
.logo--mid { width: 60%; height: 46%; }
.logo--square { width: 64%; height: 66%; }
.tile--paper img { mix-blend-mode: multiply; }
.tile__name { font-size: clamp(1rem, 1.6vw, 1.5rem); line-height: 1.15; padding: 0.5rem; text-align: center; }
a.tile { transition: background-color 180ms ease; }

.mosaic--home .m-a { grid-column: 1 / 3; grid-row: 1; }
.mosaic--home .m-b { grid-column: 3; grid-row: 1 / 3; }
.mosaic--home .m-c { grid-column: 4; grid-row: 1; }
.mosaic--home .m-d { grid-column: 5; grid-row: 1; }
.mosaic--home .m-e { grid-column: 6; grid-row: 1; }
.mosaic--home .m-f { grid-column: 1; grid-row: 2; }
.mosaic--home .m-g { grid-column: 2; grid-row: 2; }
.mosaic--home .m-h { grid-column: 4; grid-row: 2; }
.mosaic--home .m-i { grid-column: 5; grid-row: 2; }
.mosaic--home .m-j { grid-column: 6; grid-row: 2; }

.mosaic--team .m-a { grid-column: 1 / 3; grid-row: 1 / 3; }
.mosaic--team .m-b { grid-column: 3; grid-row: 1 / 3; }
.mosaic--team .m-c { grid-column: 4 / 6; grid-row: 1 / 3; }
.mosaic--team .m-d { grid-column: 6; grid-row: 1; }
.mosaic--team .m-e { grid-column: 6; grid-row: 2; }

.mosaic--contact .m-a { grid-column: 1; grid-row: 1; }
.mosaic--contact .m-b { grid-column: 2 / 4; grid-row: 1; }
.mosaic--contact .m-c { grid-column: 4; grid-row: 1; }
.mosaic--contact .m-d { grid-column: 5; grid-row: 1; }
.mosaic--contact .m-e { grid-column: 6; grid-row: 1 / 3; }
.mosaic--contact .m-f { grid-column: 1; grid-row: 2; }
.mosaic--contact .m-g { grid-column: 2; grid-row: 2; }
.mosaic--contact .m-h { grid-column: 3; grid-row: 2; }
.mosaic--contact .m-i { grid-column: 4 / 6; grid-row: 2; }

.mosaic--index { grid-template-columns: repeat(10, minmax(0, 1fr)); grid-template-rows: none; grid-auto-rows: auto; }
.mosaic--index .cell { aspect-ratio: 1; }
.mosaic--index .m-last { grid-column: auto / -1; aspect-ratio: auto; }
.mosaic--index .tile__name { font-size: clamp(0.8125rem, 1.15vw, 1.125rem); }

/* ---------- opening ---------- */
.opening { padding-top: clamp(2.5rem, 5vw, 4.5rem); padding-bottom: 0.75rem; align-items: end; }
.opening__stand { grid-column: 1; grid-row: 1; padding-right: var(--gap-axis); max-width: 34rem; padding-bottom: 0.6rem; }
html.zh .opening__stand { max-width: 30rem; }
.page-portfolio .opening__stand .lead { font-size: max(1.125rem, var(--step-body)); }
.title { grid-column: 2; grid-row: 1; }
.title .line { display: block; overflow: hidden; padding-bottom: 0.1em; margin-bottom: -0.1em; }
.title [data-line] { display: block; }
.facts li { font-size: var(--step-lead); line-height: 1.35; }
html.zh .facts li { line-height: 1.6; }
.facts li + li { margin-top: 0.55em; }

/* ---------- the founder's letter ---------- */
.letter__portrait { grid-column: 1; align-self: start; position: sticky; top: 1.5rem; padding-right: var(--gap-axis); }
.letter__portrait img { width: 100%; max-width: 30rem; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 30%; filter: grayscale(1) contrast(1.06); background: var(--surface); }
.letter__body { grid-column: 2; }
.letter__text { margin-top: clamp(2rem, 4vw, 3.5rem); max-width: 36em; }
html.en .letter__text { max-width: 34em; }
.letter__text > p:first-child { font-size: var(--step-lead); line-height: 1.5; }
html.zh .letter__text > p:first-child { line-height: 1.75; }
.letter__text ul { margin-block: 1.4em; }
.sig { margin-top: 2.5rem; }
.sig p { line-height: 1.5; }
.sig__name { font-size: var(--step-lead); margin-bottom: 0.4em; }

/* ---------- investment strategy ---------- */
.strategy .head { grid-column: 2; grid-row: 1; }
.strategy__intro { grid-column: 1; grid-row: 2; align-self: end; padding-right: var(--gap-axis); max-width: 34rem; font-size: clamp(1.5rem, 1rem + 1.2vw, 2rem); font-family: var(--f-display); font-weight: 600; line-height: 1.25; }
html.zh .strategy__intro { line-height: 1.5; }
.strategy__rows { grid-column: 2; grid-row: 2; margin-top: clamp(2.5rem, 5vw, 4rem); }
.strategy__row { display: grid; grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr); column-gap: 2rem; padding: 1.5rem 1rem; margin-inline: -1rem; }
.strategy__row:nth-child(even) { background: var(--surface); }
.strategy__rows dt { font-size: var(--step-lead); line-height: 1.2; }
html.zh .strategy__rows dt { line-height: 1.45; }

/* ---------- sayings: a colour page ---------- */
.sayings { background: var(--deep); color: var(--on-deep); padding-block: clamp(5rem, 10vw, 9rem); row-gap: clamp(2.5rem, 5vw, 4rem); }
.sayings .head { grid-column: 2; grid-row: 1; }
.sayings__lead { grid-column: 1; grid-row: 2; align-self: start; position: sticky; top: 2rem; padding-right: var(--gap-axis); font-size: var(--step-lead); line-height: 1.45; }
html.zh .sayings__lead { line-height: 1.75; }
.sayings__list { grid-column: 2; grid-row: 2; columns: 2; column-gap: clamp(2rem, 3.5vw, 3rem); }
.sayings__list li { break-inside: avoid; margin-bottom: 2.25rem; }
.sayings ::selection { background: var(--seal); color: var(--seal-ink); }

/* ---------- productions on the home page ---------- */
.works { padding-inline: var(--m); }
.works__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 1rem; row-gap: 3rem; align-items: start; }
.work { display: block; text-decoration: none; }
.work .tile { width: 100%; aspect-ratio: 1; }
.work--0 .tile, .work--4 .tile { aspect-ratio: 2 / 1; }
.work--0 { grid-column: 1 / 3; grid-row: 1; }
.works__head { grid-column: 3; grid-row: 1; padding: 0 0.5rem; }
.work--1 { grid-column: 4; grid-row: 1; }
.work--2 { grid-column: 2; grid-row: 2; }
.work--3 { grid-column: 3; grid-row: 2; }
.work--4 { grid-column: 3 / 5; grid-row: 3; }
.work--5 { grid-column: 1; grid-row: 3; }
.work__cap { display: block; margin-top: 0.7rem; font-size: var(--step-small); line-height: 1.4; }
.link-more { display: inline-block; margin-top: 1.25rem; font-weight: 500; }

/* ---------- closing row ---------- */
.reach { align-items: start; }
.reach__head { grid-column: 1; padding-right: var(--gap-axis); }
html.zh .reach__head { word-break: keep-all; }
.reach__qr { grid-column: 2; grid-row: 1; width: 10.5rem; }
.reach__qr img { width: 100%; aspect-ratio: 1; }
.reach__links { grid-column: 2; grid-row: 1; margin-left: 13rem; display: grid; gap: 0.6rem; justify-items: start; }
.reach__label { display: inline-block; min-width: 3.5em; color: var(--muted); }
.reach__links .button { margin-block: 0.6rem; }
.reach__cities { color: var(--muted); font-size: var(--step-small); }

/* ---------- portfolio catalogue ---------- */
.prods { counter-reset: none; }
.prod { padding-block: clamp(2.5rem, 4.5vw, 4rem); scroll-margin-top: 1rem; }
.prod:nth-child(even) { background: var(--surface); }
.prod__tile { grid-column: 1; padding-right: var(--gap-axis); }
.prod__tile .tile { width: min(100%, 26rem); aspect-ratio: 3 / 2; }
.prod__tile .tile__name { font-size: var(--step-lead); }
.prod__text { grid-column: 2; }
.prod__name { font-size: var(--step-lead); line-height: 1.2; margin-bottom: 1rem; }
html.zh .prod__name { line-height: 1.4; }
.prod__desc { max-width: 36em; }
html.en .prod__desc { max-width: 34em; }
.prod__desc--cols { max-width: none; columns: 2; column-gap: clamp(2rem, 3.5vw, 3rem); }
.prod__desc--cols p { break-inside: avoid-column; }

/* ---------- team ---------- */
.bio + .bio { margin-top: var(--section); }
.bio__side { grid-column: 1; padding-right: var(--gap-axis); }
.bio__works { display: grid; grid-template-columns: repeat(2, minmax(0, 12rem)); gap: 1.5rem 1rem; margin-top: 2.5rem; }
.bio__works .tile { aspect-ratio: 3 / 2; width: 100%; }
.bio__text { grid-column: 2; max-width: 36em; }
html.en .bio__text { max-width: 34em; }
.bio__text--cols { max-width: none; columns: 2; column-gap: clamp(2rem, 3.5vw, 3rem); }
.bio__text--cols p { break-inside: avoid-column; }

/* ---------- contact ---------- */
.bp { align-items: center; }
.bp__seal { grid-column: 1; padding-right: var(--gap-axis); }
.seal { display: block; width: min(100%, 22rem); height: auto; aspect-ratio: 1; overflow: visible; }
.seal .seal__field, .seal .seal__cell { fill: var(--seal); }
.seal text { fill: var(--paper); }
html:not(.js) .bp__seal { display: none; }
.bp__form { grid-column: 2; }
.bp__fields { margin-top: 2rem; display: grid; grid-template-columns: minmax(0, 22rem) auto; grid-template-rows: auto auto; column-gap: 0.75rem; row-gap: 0.5rem; align-items: end; justify-content: start; }
.bp__fields label { grid-column: 1 / -1; font-weight: 500; }
.bp__fields input { font: inherit; color: var(--ink); background: var(--paper); border: 2px solid var(--ink); border-radius: 0; min-height: 2.875rem; padding: 0.4rem 0.8rem; width: 100%; letter-spacing: inherit; }
.bp__fields input:focus-visible { outline: 3px solid var(--seal); outline-offset: 2px; }
html:not(.js) .bp__fields label, html:not(.js) .bp__fields input { display: none; }
.bp__address { margin-top: 1.25rem; font-size: var(--step-lead); }
.wechat { align-items: center; }
.wechat__qr { grid-column: 1; padding-right: var(--gap-axis); }
.wechat__qr img { width: min(100%, 15rem); aspect-ratio: 1; }
.wechat__text { grid-column: 2; }
.wechat__id { margin-top: 1rem; font-size: var(--step-lead); font-weight: 500; letter-spacing: 0.02em; }
.offices { row-gap: 0; }
.offices .head { grid-column: 2; margin-bottom: clamp(2rem, 4vw, 3rem); }
.office { grid-column: 1 / -1; display: grid; grid-template-columns: subgrid; padding-block: 2.75rem; }
.office:nth-of-type(even) { background: var(--surface); margin-inline: calc(-1 * var(--m)); padding-inline: var(--m); }
.office__city { grid-column: 1; font-size: var(--step-head); line-height: 1.1; padding-right: var(--gap-axis); }
.office__lines { grid-column: 2; align-self: center; }
.office__lines li { line-height: 1.6; }

/* ---------- the close: contact as the headline ---------- */
.close { background: var(--seal); color: var(--seal-ink); display: flex; flex-direction: column; padding: 2.25rem var(--m) 2rem; }
.close__top { display: flex; justify-content: space-between; align-items: start; gap: 2rem; }
.close__offices { display: flex; flex-wrap: wrap; gap: 0.4rem 2.5rem; font-size: var(--step-small); }
.close__city { font-weight: 600; margin-right: 0.35em; }
.close__up { font-size: var(--step-small); font-weight: 500; white-space: nowrap; }
.close__mail { margin-top: auto; padding-top: clamp(5rem, 11vw, 9.5rem); font-size: clamp(3rem, 9.6vw, 10rem); line-height: 1; letter-spacing: -0.03em; text-decoration-thickness: 0.04em; text-decoration-color: transparent; overflow-wrap: anywhere; }
.close__credits { max-width: 37.5rem; }
.close__credits li + li { margin-top: 0.15em; }
.close__meta { margin-top: 3rem; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr) minmax(0, 1fr); gap: 2rem; font-size: var(--step-small); line-height: 1.55; align-items: end; }
.close__nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.close__nav a { font-weight: 500; }
.close__legal { text-align: right; }
.close ::selection { background: var(--seal-ink); color: var(--seal); }

/* ---------- hover, only where a pointer hovers ---------- */
@media (hover: hover) and (pointer: fine) {
  a:hover { text-decoration-color: currentColor; }
  .bar__tab a:hover, .bar__lang:hover { text-decoration-color: currentColor; }
  .button:hover { background: var(--seal); color: var(--seal-ink); }
  a.tile--paper:hover, .work:hover .tile--paper { background: var(--surface); }
  a.tile--deep:hover, .work:hover .tile--deep { background: #1d4415; }
  a.tile:hover img, .work:hover .tile img { transform: scale(1.06); }
  .work:hover .work__cap { text-decoration: underline; text-decoration-thickness: 0.08em; text-underline-offset: 0.22em; }
  .close__mail:hover { text-decoration-color: currentColor; }
  .close .button:hover { background: var(--deep); color: var(--bone); }
}

/* ---------- tablet ---------- */
@media (max-width: 1100px) {
  .prod__desc--cols, .bio__text--cols { columns: 1; max-width: 36em; }
  .bio { grid-template-columns: minmax(0, 1fr); }
  .bio__side, .bio__text { grid-column: 1; padding-right: 0; }
  .bio__works { grid-template-columns: repeat(3, minmax(0, 11rem)); }
  .bio__text { margin-top: 2rem; }
  .sayings__list { columns: 1; }
  .reach__links { margin-left: 0; margin-top: 12rem; }
  .close__meta { grid-template-columns: 1fr 1fr; }
  .close__credits { grid-column: 1 / -1; grid-row: 1; }
}
@media (max-width: 900px) {
  .bar__tab { width: auto; }
  .mosaic--index { grid-template-columns: repeat(8, minmax(0, 1fr)); }
}

/* ---------- phone: its own composition ---------- */
@media (max-width: 700px) {
  :root { --bar: 3.5rem; --section: 5.5rem; --step-body: 1.125rem; }
  .bar__mark { width: 8.5rem; }
  .bar__tab, .bar__lang { display: none; }
  .bar__end { gap: 0; }
  .button--bar { min-height: var(--bar); padding-inline: 0.9rem; }
  .bar__menu { display: block; position: relative; align-self: stretch; }
  .bar__menu summary { list-style: none; cursor: pointer; height: 100%; display: flex; align-items: center; padding: 0 var(--m) 0 0.75rem; font-weight: 500; }
  .bar__menu summary::-webkit-details-marker { display: none; }
  .bar__menu nav { position: absolute; right: 0; top: 100%; z-index: 5; background: var(--seal); color: var(--seal-ink); min-width: 12rem; padding: 0.75rem 1.25rem; }
  .bar__menu li a { display: block; padding: 0.6rem 0; font-size: 1.125rem; }

  .mosaic { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(2, 33vw); }
  .mosaic .cell { display: none; }
  .mosaic--home .m-a { display: block; grid-column: 1 / 3; grid-row: 1; }
  .mosaic--home .m-b { display: block; grid-column: 3; grid-row: 1 / 3; }
  .mosaic--home .m-d { display: grid; grid-column: 1; grid-row: 2; }
  .mosaic--home .m-c { display: block; grid-column: 2; grid-row: 2; }
  .mosaic--team .m-a { display: block; grid-column: 1; grid-row: 1 / 3; }
  .mosaic--team .m-c { display: block; grid-column: 2; grid-row: 1 / 3; }
  .mosaic--team .m-d { display: grid; grid-column: 3; grid-row: 1; }
  .mosaic--team .m-e { display: grid; grid-column: 3; grid-row: 2; }
  .mosaic--contact .m-a { display: grid; grid-column: 1; grid-row: 1; }
  .mosaic--contact .m-b { display: block; grid-column: 2; grid-row: 1; }
  .mosaic--contact .m-c { display: grid; grid-column: 3; grid-row: 1; }
  .mosaic--contact .m-d { display: block; grid-column: 1; grid-row: 2; }
  .mosaic--contact .m-h { display: grid; grid-column: 2; grid-row: 2; }
  .mosaic--contact .m-i { display: block; grid-column: 3; grid-row: 2; }
  .mosaic--index { grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: none; }
  .mosaic--index .cell { display: grid; }
  .cell__seal { font-size: 2rem; }
  html.en .cell__seal { font-size: 1.125rem; }
  .cell__cap { font-size: 0.8125rem; padding: 0.25rem 0.45rem 0.25rem 1.0625rem; }

  .opening, .letter, .strategy, .sayings, .reach, .bio, .bp, .wechat, .offices, .prod { grid-template-columns: minmax(0, 1fr); }
  .opening > *, .letter > *, .strategy > *, .sayings > *, .reach > *, .bio > *, .bp > *, .wechat > *, .offices > *, .prod > *,
  .strategy .head, .sayings .head, .offices .head, .office__city, .office__lines { grid-column: 1; padding-right: 0; }
  .opening { padding-top: 2rem; }
  .title { grid-row: 1; font-size: 12vw; }
  .opening__stand { grid-row: 2; margin-top: 1.5rem; font-size: 1.0625rem; }
  .facts li, .opening__stand .lead, .page-portfolio .opening__stand .lead { font-size: 1.125rem; }

  .letter__portrait { position: static; width: 9rem; }
  .letter__body { margin-top: 2rem; }
  .strategy .head, .strategy__intro, .strategy__rows { grid-row: auto; }
  .strategy__intro { margin-top: 1.5rem; }
  .strategy__row { grid-template-columns: 1fr; row-gap: 0.5rem; }
  .sayings .head, .sayings__lead, .sayings__list { grid-row: auto; }
  .sayings__lead { position: static; }
  .works__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 0.625rem; row-gap: 2rem; }
  .works__head { grid-column: 1 / -1; grid-row: 1; padding: 0; }
  .work--0, .work--4 { grid-column: 1 / -1; grid-row: auto; }
  .work--1, .work--3 { grid-column: 2; grid-row: auto; }
  .work--2, .work--5 { grid-column: 1; grid-row: auto; }
  .reach__qr { grid-row: auto; width: 6rem; margin-top: 2rem; }
  .reach__links { grid-row: auto; margin: 1.5rem 0 0; }
  .prod__tile .tile { width: 100%; }
  .prod__text { margin-top: 1.5rem; }
  .bio__works { margin-top: 1.5rem; margin-bottom: 2rem; }
  .bio__text { margin-top: 1rem; }
  .bp__seal .seal { width: 100%; max-width: 20rem; }
  .bp__form { margin-top: 2.5rem; }
  .bp__fields { grid-template-columns: minmax(0, 1fr); }
  .bp__fields .button { justify-self: start; }
  .wechat__qr img { width: 10rem; }
  .wechat__text { margin-top: 1.5rem; }
  .office { grid-template-columns: minmax(0, 1fr); }
  .office__city { grid-column: 1; font-size: 2rem; }
  .office__lines { grid-column: 1; margin-top: 0.5rem; }
  .close__top { flex-direction: column; gap: 1rem; }
  .close__offices { flex-direction: column; }
  .close__mail { font-size: 12vw; padding-top: 5rem; }
  .close__meta { grid-template-columns: 1fr; gap: 1rem; }
  .close__credits { grid-row: auto; }
  .close__legal { text-align: left; }
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .js .mosaic { clip-path: inset(0 0 100% 0); animation: open 1000ms var(--ease-in-out) 80ms forwards; }
  .js .mosaic .cell__media { transform: scale(1.08); animation: settle 1300ms var(--ease-expo) 80ms forwards; }
  .js .title.is-split [data-line] { transform: translateY(105%); animation: line-up 900ms var(--ease-expo) forwards; animation-delay: calc(var(--i) * 110ms + 160ms); }
  .js [data-load] { opacity: 0; transform: translateY(14px); animation: rise 600ms var(--ease-out) 460ms forwards; }
  .js [data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity 700ms var(--ease-out), transform 900ms var(--ease-expo); transition-delay: calc(var(--i, 0) * 80ms); }
  .js [data-reveal].is-in { opacity: 1; transform: none; }
  .js .prod__tile[data-reveal] { opacity: 1; transform: none; }
.js .prod__tile[data-reveal] .tile { clip-path: inset(0 0 100% 0); transition: clip-path 1000ms var(--ease-in-out) 60ms; }
  .js .prod__tile[data-reveal].is-in .tile { clip-path: inset(0); }
  .js .seal text, .js .seal .seal__cell { transform-box: fill-box; transform-origin: center; animation: stamp 420ms var(--ease-out) both; animation-delay: calc(var(--n, 0) * 50ms); }
  .js .letter__portrait img { transform: scale(1.04); transition: transform 1600ms var(--ease-soft); }
  .js .letter__portrait.is-in img { transform: none; }
}
@keyframes open { to { clip-path: inset(0); } }
@keyframes settle { to { transform: none; } }
@keyframes line-up { to { transform: none; } }
@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes stamp { from { opacity: 0; transform: scale(1.18); } to { opacity: 1; transform: none; } }