/* 首页（中文 / 和英文 /en/ 共用）的样式；子页面用 site.css */
:root {
  --paper: #f3f0e9;     /* 暖白纸：首屏有午后窗光照在纸墙上 */
  --ink: #1f2533;      /* Brigo 字标的藏青，用作黑版 */
  --ink-2: #3f4350;
  --ink-3: #5f636e;
  --cyan: #18dcef;     /* Brigo 圆环：青 → 蓝 → 紫 */
  --blue: #1268ff;
  --violet: #8a24ff;
  --pencil: #4f4e4b;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Noto Sans CJK SC", sans-serif;
  --frame: min(1440px, 88%);   /* 版心：顶栏、首屏文字、各段正文、页脚共用，三页一致；宽屏最多 1440 */
  --mono: "SF Mono", "JetBrains Mono", Menlo, monospace;
  --hand: "Kaiti SC", "STKaiti", "KaiTi", cursive;
  --script: "Snell Roundhand", "Brush Script MT", "Segoe Script", cursive;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
/* 切换要顺：页内锚点平滑滚动；跨页淡入淡出、顶栏不动（Chrome 126+ / Safari 18.2+，不支持的照常跳）。减少动态效果时都不做。
   平滑滚动等页面加载完再开（.smooth），否则带 #锚点 打开时边滚边长高，会停在半路 */
@media (prefers-reduced-motion: no-preference) {
  html.smooth { scroll-behavior: smooth; }
  @view-transition { navigation: auto; }
}
nav { view-transition-name: site-nav; }

nav { position: fixed; z-index: 30; top: 0; left: 0; right: 0; background: rgba(243,240,233,.86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
nav .row { width: var(--frame); height: 72px; margin: 0 auto; display: flex; align-items: center; gap: 40px; }
nav img { height: 21px; display: block; }
nav .links { display: flex; gap: 28px; font-size: 14px; color: var(--ink-2); }
nav .right { margin-left: auto; display: flex; align-items: center; gap: 22px; font-size: 14px; }
nav .right > a { white-space: nowrap; }
nav .links .lang-m { display: none; }   /* 手机菜单里的语言切换；桌面在右侧 .lang */
.menu-btn { display: none; position: relative; width: 40px; height: 40px; margin-right: -10px; border: 0; background: none; cursor: pointer; }
.menu-btn i { position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--ink); transition: transform .2s; }
.menu-btn i:first-child { top: 16px; } .menu-btn i:last-child { top: 23px; }
nav.open .menu-btn i:first-child { transform: translateY(3.5px) rotate(45deg); } nav.open .menu-btn i:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.btn { display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 20px; border-radius: 999px; background: var(--ink); color: var(--paper); font-size: 14px; font-weight: 500; border: 1px solid var(--ink); white-space: nowrap; }
.btn-lg { height: 50px; padding: 0 26px; font-size: 15px; }
.btn-line { background: transparent; color: var(--ink); border: 1px solid var(--ink); }

.run { position: relative; height: 210vh; }
.stick { position: sticky; top: 0; height: 100vh; overflow: hidden; }
#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero-still { position: absolute; z-index: 1; object-fit: cover; box-shadow: 0 0 0 calc(var(--frame-pad, 14px)) #fcfbf8, 0 18px 40px -16px rgba(30,25,15,.35); }

.copy { position: absolute; z-index: 6; left: calc((100% - var(--frame)) / 2); top: 50%; transform: translateY(-50%); width: 36vw; max-width: 540px; }
.eyebrow { display: flex; align-items: center; gap: 12px; font-size: 13px; letter-spacing: .14em; color: var(--ink-2); }
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; }
h1 { margin-top: 30px; font-family: var(--serif); font-weight: 900; font-size: clamp(56px, 6vw, 90px); line-height: 1.12; letter-spacing: .03em; }
h1 .ln { position: relative; display: block; width: max-content; color: var(--ink); clip-path: inset(0 100% 0 0); transition: clip-path .7s cubic-bezier(.7, 0, .2, 1); }
h1 .ln.on { clip-path: inset(-20% -10% -20% 0); }
h1 .ln::before, h1 .ln::after { content: attr(data-t); position: absolute; left: 0; top: 0; mix-blend-mode: multiply; pointer-events: none; }
h1 .ln::before { color: #00a1e3; transform: translate(calc(var(--r, 0) * -1px), calc(var(--r, 0) * .6px)); }
h1 .ln::after { color: #e60d80; transform: translate(calc(var(--r, 0) * .9px), calc(var(--r, 0) * -.45px)); opacity: .8; }
.sub { margin-top: 26px; font-size: 18px; line-height: 1.75; color: var(--ink-2); opacity: 0; transform: translateY(8px); transition: opacity .7s .15s, transform .7s .15s; }
.sub.second small { display: block; margin-top: 14px; font: 15px/1.7 var(--sans); letter-spacing: .02em; color: var(--ink-3); }
.sub.second { margin-top: 22px; font-family: var(--serif); font-size: 30px; font-weight: 500; letter-spacing: .04em; color: var(--ink-2); }
.actions { margin-top: 36px; display: flex; align-items: center; gap: 24px; opacity: 0; transform: translateY(8px); transition: opacity .7s .3s, transform .7s .3s; }
.sub.on, .actions.on { opacity: 1; transform: none; }

/* 中间那张上的字幕：跟着刮板一起印出来 */
#cap, #cap0 { position: absolute; z-index: 6; pointer-events: none; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 15%; text-align: center; font: 700 clamp(20px, 2.1vw, 30px)/1.35 var(--sans); letter-spacing: .04em; color: #fff; text-shadow: 0 1px 0 rgba(0,0,0,.55), 0 0 2px rgba(0,0,0,.6), 0 2px 10px rgba(0,0,0,.35); opacity: 0; transition: opacity .35s; }
#cap.on, #cap0.on { opacity: 1; }
/* 手机竖屏：样张小，字幕跟着缩；铅笔批注放不下，不画 */
.stick.narrow #cap, .stick.narrow #cap0 { font-size: 13px; }
.stick.narrow #proof { display: none; }
.stick.narrow .copy { left: 6%; width: 88%; max-width: none; top: 100px; transform: none; }
.stick.narrow .eyebrow { max-width: 46%; align-items: flex-start; }
.stick.narrow h1 { font-size: 44px; }
.stick.narrow .sub.second { font-size: 20px; margin-top: 14px; line-height: 1.5; }
.stick.narrow .sub.second small { font-size: 14px; margin-top: 8px; }
.stick.narrow .actions { margin-top: 22px; }
#cap.en, #cap0.en { font-family: "Helvetica Neue", Arial, sans-serif; letter-spacing: .01em; }
.stick.can-pull, .stick.pulling { cursor: pointer; }
/* 人群自己说的话：竖排在印版左边，像倒在网版边上的墨；开刮时化成墨点跟着刮板走 */
#voice { position: absolute; z-index: 6; pointer-events: none; display: flex; flex-direction: row-reverse; align-items: flex-start; gap: 14px; }
#voice .vt { writing-mode: vertical-rl; font: 600 clamp(20px, 1.7vw, 26px)/1.75 var(--serif); letter-spacing: .12em; color: var(--ink); }
#voice .vt.en { font-family: Georgia, "Times New Roman", serif; letter-spacing: .03em; }
#voice .vt span { display: inline-block; }
#voice .sc { writing-mode: vertical-rl; font: 12px/1 var(--sans); letter-spacing: .14em; color: var(--ink-3); white-space: nowrap; }
#snips { position: absolute; inset: 0; z-index: 6; pointer-events: none; }
#snips div { position: absolute; font: 600 14px/1.3 var(--serif); color: var(--ink); white-space: nowrap; opacity: 0; }
#ink { position: absolute; inset: 0; z-index: 8; width: 100%; height: 100%; pointer-events: none; }
/* 刮板 */
.squeegee { position: absolute; z-index: 7; width: 12px; border-radius: 3px; background: linear-gradient(90deg, #2c3240, #121620); box-shadow: 6px 0 16px rgba(0,0,0,.2); opacity: 0; pointer-events: none; }
.squeegee::before { content: ""; position: absolute; top: 0; bottom: 0; right: 100%; width: 6px; border-radius: 3px 0 0 3px; background: var(--c, var(--blue)); }
.squeegee.all::before { width: 8px; background: linear-gradient(90deg, #212124 0 25%, #ffeb00 0 50%, #e60d80 0 75%, #00a1e3 0); }
.squeegee { transition: opacity .25s; }

/* 定稿批注：铅笔线条 */
#proof { position: absolute; z-index: 7; left: 0; top: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
#proof .s { fill: none; stroke: var(--pencil); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: var(--len); stroke-dashoffset: var(--len); }
#proof text { font-family: var(--hand); fill: var(--pencil); font-size: 17px; opacity: 0; }
#proof .sig { font-family: var(--script); font-size: 26px; }
#proof .chip { stroke: none; opacity: 0; }
#proof.go .s { transition: stroke-dashoffset .45s cubic-bezier(.5, 0, .3, 1); stroke-dashoffset: 0; }
#proof.go text, #proof.go .chip { transition: opacity .3s; opacity: 1; }
#proof.out { transition: opacity .4s; opacity: 0; }

/* 每张印品下面的铅笔编号和签名 */
#notes { position: absolute; inset: 0; z-index: 5; pointer-events: none; }
#notes .n { position: absolute; font: 11px/1 var(--hand); color: var(--pencil); white-space: nowrap; opacity: 0; transition: opacity .4s; }
#notes .n.on { opacity: 1; }
#notes .n .sg { font-family: var(--script); font-size: 15px; position: absolute; right: 0; top: -3px; }


.count { position: absolute; z-index: 6; right: calc((100% - var(--frame)) / 2); bottom: 30px; font: 11px/1 var(--mono); letter-spacing: .12em; color: var(--ink-2); }
.count b { color: var(--ink); font-weight: 500; }
.inks { position: absolute; z-index: 6; left: calc((100% - var(--frame)) / 2); bottom: 30px; display: flex; align-items: center; gap: 12px; font: 11px/1 var(--mono); letter-spacing: .08em; color: var(--ink-2); }
.inks span { display: flex; } .inks i { width: 20px; height: 10px; display: block; }


/* ———————— 宣言：画册式版面 ———————— */
.mf { --rule: rgba(31,37,51,.14); --cap: 11px; color: var(--ink); }
.mf .wrap { width: var(--frame); margin: 0 auto; }
.mf .cap { font: 13px/1.6 var(--sans); letter-spacing: .04em; color: var(--ink-3); }
.mf .rv { overflow: hidden; display: block; }
.mf .rv > span { display: block; transform: translateY(105%); transition: transform 1.1s cubic-bezier(.2,.7,.1,1); }
.mf .in .rv > span, .mf .rv.in > span { transform: none; }
.mf .fade { opacity: 0; transform: translateY(10px); transition: opacity 1.2s .25s, transform 1.2s .25s; }
.mf .in .fade, .mf .fade.in { opacity: 1; transform: none; }


/* 三章 */
.mf-ch { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 6vw; padding: 120px 0 150px; border-top: 1px solid var(--rule); }
.mf-ch.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.mf-ch.flip .txt { order: 2; }
.mf-ch .txt { align-self: start; position: sticky; top: 120px; }
.mf-ch h3 { margin-top: 26px; font-family: var(--serif); font-weight: 900; font-size: clamp(44px, 4.6vw, 68px); line-height: 1.25; letter-spacing: .03em; }
.mf-ch .cta { margin-top: 40px; }
.mf-ch.about h3 { font-size: clamp(40px, 3.8vw, 56px); white-space: nowrap; }
.mf-ch p { margin-top: 26px; font-family: var(--sans); font-size: 17px; line-height: 1.9; color: #2b2f3a; max-width: 30em; }

/* 版画：白边、阴影、铅笔编号 */
.plate { background: #fcfbf8; box-shadow: 0 1px 0 rgba(0,0,0,.04), 0 18px 40px -22px rgba(30,25,15,.35); padding: 6%; position: relative; }
.plate canvas { display: block; width: 100%; height: auto; }
.plate .pn { display: flex; justify-content: space-between; margin-top: 4.5%; font: 12px/1 var(--sans); color: var(--ink-3); }
.figcap { margin-top: 18px; font: 12px/1.7 var(--sans); color: var(--ink-3); }
.figcap b { color: var(--ink-2); font-weight: 500; }

/* I 复制：一张大纸，32 格依次印出 */
.sheet32 { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.sheet32 .cell { position: relative; aspect-ratio: 9/16; background: #e9e5dc; }
.sheet32 .cell canvas { position: absolute; inset: 0; width: 100%; height: 100%; clip-path: inset(0 100% 0 0); transition: clip-path .5s cubic-bezier(.6,0,.2,1); }
.sheet32 .cell.on canvas { clip-path: inset(0 0 0 0); }
.tally { display: flex; justify-content: space-between; margin-top: 16px; font: 13px/1 var(--sans); color: var(--ink-3); }
.tally b { color: var(--ink); font-weight: 500; }




@media (max-width: 900px) {
  .mf-ch, .mf-ch.flip { grid-template-columns: 1fr; }
  .mf-ch .txt { position: static; order: 0 !important; }
  .sheet32 { grid-template-columns: repeat(4, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .mf .rv > span, .mf .fade, .sheet32 .cell canvas { transition: none !important; transform: none !important; opacity: 1 !important; clip-path: none !important; }
}

/* ———————— 做法 / 国内海外 / 私有化 / 页脚 ———————— */
.how-head { padding: 140px 0 40px; border-top: 1px solid var(--rule); }
.how-head h2 { margin-top: 28px; font-family: var(--serif); font-weight: 900; font-size: clamp(44px, 4.6vw, 68px); line-height: 1.25; letter-spacing: .03em; }
.how-head p { margin-top: 26px; max-width: 34em; font-family: var(--sans); font-size: 18px; line-height: 1.9; color: #2b2f3a; }

.step { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 6vw; padding: 90px 0 110px; }
.step + .step { border-top: 1px solid var(--rule); }
.step.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.step.flip .txt { order: 2; }
.step .txt { align-self: center; }
.step .no { font: 13px/1 var(--sans); letter-spacing: .04em; color: var(--ink-3); }
.step h3 { margin-top: 22px; font-family: var(--serif); font-weight: 900; font-size: clamp(34px, 3.2vw, 46px); line-height: 1.3; letter-spacing: .03em; }
.step p { margin-top: 24px; font-family: var(--sans); font-size: 17px; line-height: 1.9; color: #2b2f3a; max-width: 28em; }

/* 铅笔批注 */
.note { position: absolute; font: 13px/1.5 var(--sans); color: var(--ink-2); white-space: nowrap; }
.box { position: absolute; z-index: 3; border: 1.6px solid #3b3a37; border-radius: 3px; box-shadow: 0 0 0 1px rgba(251,250,247,.5); }
.note { z-index: 3; }
.note.tag { font-size: 13px; color: #3b3a37; background: #fcfbf8; border: 1.2px solid #3b3a37; border-radius: 3px; padding: 3px 8px; }
.query { font: 13px/1 var(--sans); color: var(--ink-2); border-bottom: 1px solid var(--rule); padding: 0 0 14px; margin-bottom: 18px; display: flex; gap: 12px; }
.query b { color: var(--ink); font-weight: 500; }

/* 01 看懂素材 */
.s1 { display: grid; grid-template-columns: 1.15fr 1fr; gap: 5%; align-items: end; }
.s1 .big { position: relative; }
.s1 .strip { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.s1 .strip .plate { padding: 7%; }
.tc { margin-top: 8px; font: 11px/1.5 var(--mono); color: var(--ink-3); letter-spacing: .04em; }
.tc b { color: var(--ink-2); font-weight: 500; }

/* 02 配画面 */
.board { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3%; }
.board .seg { font: 12px/1 var(--sans); letter-spacing: .04em; color: var(--ink-3); margin-bottom: 12px; }
.board .plate { padding: 7%; position: relative; }
.board .line { margin-top: 14px; font-family: var(--sans); font-size: 15px; line-height: 1.6; color: var(--ink); }
.board .ai { position: absolute; top: 12%; right: -6px; font: 12px/1 var(--sans); color: var(--ink-2); background: #fcfbf8; border: 1.2px solid var(--pencil); border-radius: 3px; padding: 4px 7px; }

/* 03 剪成片 */
.takes { position: relative; height: 0; padding-bottom: 92%; }
.takes .t { position: absolute; width: 42%; }
.takes .t:nth-child(1) { left: 0; top: 8%; transform: rotate(-4deg); }
.takes .t:nth-child(2) { left: 29%; top: 0; z-index: 2; }
.takes .t:nth-child(3) { right: 0; top: 10%; transform: rotate(4deg); }
.takes .lab { margin-top: 12px; text-align: center; font: 13px/1 var(--sans); color: var(--ink-3); }

/* 国内 · 海外 */
.mk { padding: 140px 0 150px; border-top: 1px solid var(--rule); }
.mk-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 6vw; align-items: center; }
.mk h2 { margin-top: 26px; font-family: var(--serif); font-weight: 900; font-size: clamp(38px, 3.8vw, 56px); line-height: 1.3; letter-spacing: .03em; }
.mk p { margin-top: 26px; font-family: var(--sans); font-size: 17px; line-height: 1.9; color: #2b2f3a; max-width: 28em; }
.twin { display: grid; grid-template-columns: 1fr 1fr; gap: 5%; }
.twin .plate { padding: 6%; }
.twin .frame { position: relative; }
/* 字幕压在网点上：底部垫一层暗色渐变 */
.twin .plate::after { content: ""; position: absolute; left: 6%; right: 6%; bottom: 0; margin-bottom: 6%; height: 32%; background: linear-gradient(transparent, rgba(20,16,10,.42)); pointer-events: none; }
.twin .cc { position: absolute; z-index: 2; left: 6%; right: 6%; bottom: 8%; text-align: center; color: #fff; font-weight: 600; font-size: 17px; line-height: 1.4; text-shadow: 0 1px 2px rgba(0,0,0,.5), 0 1px 10px rgba(0,0,0,.45); }
.twin .cc.en { font-family: -apple-system, "Helvetica Neue", sans-serif; }
.twin .mkt { margin-top: 16px; display: flex; justify-content: space-between; font: 13px/1 var(--sans); color: var(--ink-3); }
.twin .mkt b { color: var(--ink); font-weight: 500; }
.plats { margin-top: 70px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--rule); }
.plats > div { padding: 22px 0 0; display: flex; gap: 22px; align-items: baseline; }
.plats > div + div { padding-left: 4vw; border-left: 1px solid var(--rule); }
.plats .k { font: 13px/1 var(--sans); color: var(--ink-3); }
.plats .v { font-family: var(--sans); font-size: 17px; letter-spacing: .02em; }



/* 代运营简介 */
.svc-teaser { padding: 140px 0 150px; border-top: 1px solid var(--rule); }
.svc-teaser h2 { margin-top: 26px; font-family: var(--serif); font-weight: 900; font-size: clamp(38px, 3.8vw, 56px); line-height: 1.3; letter-spacing: .03em; }
.svc-teaser > p { margin-top: 22px; font-size: 17px; line-height: 1.9; color: #2b2f3a; max-width: 30em; }
.svc-teaser .cards { margin-top: 44px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.svc-teaser .card { display: block; background: #fcfbf8; padding: 30px 30px 26px; border-radius: 4px; box-shadow: 0 1px 0 rgba(0,0,0,.04), 0 18px 40px -22px rgba(30,25,15,.35); transition: transform .3s; }
.svc-teaser .card:hover { transform: translateY(-3px); }
.svc-teaser .card h3 { font-family: var(--serif); font-weight: 900; font-size: 26px; letter-spacing: .03em; }
.svc-teaser .card p { margin-top: 12px; font-size: 15px; line-height: 1.8; color: var(--ink-2); }
.svc-teaser .card .meta { display: block; margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--rule); font-size: 14px; color: var(--ink); }
.svc-teaser .links { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

/* 页脚 */
footer.ft { padding: 96px 0 48px; border-top: 1px solid var(--rule); }
.ft .cols { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; row-gap: 40px; }
.ft .brand { grid-column: span 6; }
.ft .col { grid-column: span 2; }
.ft .brand img { height: 22px; display: block; }
.ft .brand p { margin-top: 16px; font-size: 13px; line-height: 22px; color: var(--ink-3); max-width: 25em; }
.ft .brand p + p { margin-top: 4px; }
.ft h4 { font-size: 13px; line-height: 20px; color: var(--ink-3); font-weight: 400; margin-bottom: 16px; }
.ft ul { list-style: none; display: grid; gap: 12px; font-size: 14px; line-height: 20px; color: var(--ink-2); }
.ft ul a:hover { color: var(--ink); }
.ft .sig { margin-top: 72px; display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--rule); padding-top: 24px; font-size: 12px; color: var(--ink-3); }
.ft .ft-inks { display: flex; align-items: center; } .ft .ft-inks i { width: 16px; height: 8px; display: block; } .ft .ft-inks em { font: 11px/1 var(--mono); font-style: normal; letter-spacing: .14em; margin-left: 12px; }

@media (max-width: 960px) {
  nav .links { display: none; }
  /* 手机：栏目收进右上角的菜单；页脚和顶栏的文字链接加高，手指好点 */
  .menu-btn { display: block; }
  nav .right .lang { display: none; }
  nav.open .links .lang-m { display: block; }
  nav .right { gap: 16px; }
  nav .right > a:not(.btn), nav .row > a:first-child { padding: 10px 0; }
  nav.open .links { display: flex; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 4px calc((100% - var(--frame)) / 2) 16px; background: rgba(243,240,233,.97); border-bottom: 1px solid rgba(45,38,25,.10); font-size: 16px; color: var(--ink); }
  nav.open .links a { padding: 14px 0; }
  nav.open .links a + a { border-top: 1px solid rgba(45,38,25,.10); }
  .ft ul { gap: 0; }
  .ft ul a { display: inline-block; padding: 8px 0; }
  .ft .brand { grid-column: span 12; }
  .ft .col { grid-column: span 4; }
}
@media (max-width: 900px) {
  .step, .step.flip, .mk-grid, .svc-teaser .cards { grid-template-columns: 1fr; }
  .step.flip .txt { order: 0; }
  .board { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
}

/* 顾问二维码弹窗：预约演示、联系我们共用，副标题按入口换 */
dialog.ct { margin: auto; padding: 0; border: 0; border-radius: 14px; background: var(--paper); color: var(--ink); box-shadow: 0 30px 80px rgba(31,37,51,.25); }
dialog.ct::backdrop { background: rgba(31,37,51,.45); backdrop-filter: blur(4px); }
.ct-box { position: relative; width: 320px; max-width: calc(100vw - 32px); padding: 34px 28px 28px; text-align: center; }
.ct-t { font-family: var(--serif); font-weight: 900; font-size: 24px; letter-spacing: .04em; }
.ct-d { margin-top: 8px; font-size: 14px; color: var(--ink-2); }
.ct-qr { display: block; width: 200px; height: 200px; margin: 22px auto 0; padding: 10px; background: #fff; border: 1px solid rgba(31,37,51,.12); border-radius: 10px; }
.ct-h { margin-top: 16px; font-size: 12px; color: var(--ink-3); }
.ct-mail { margin-top: 22px; }
.ct-mail + .ct-h { font-size: 14px; color: var(--ink-2); user-select: all; }
.ct-x { position: absolute; top: 10px; right: 12px; width: 32px; height: 32px; border: 0; background: none; font-size: 22px; line-height: 1; color: var(--ink-3); cursor: pointer; }
.ct-x:hover { color: var(--ink); }

/* 英文页（/en/）：标题换西文衬线、去掉中文排版用的字距；中文片段（lang="zh-CN"）仍用中文字体 */
html:lang(en) {
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Songti SC", "Noto Serif SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", sans-serif;
}
html:lang(en) h1, html:lang(en) h2, html:lang(en) h3, html:lang(en) .sub.second { letter-spacing: -.01em; }
html:lang(en) h1 { font-weight: 700; font-size: clamp(44px, 3.9vw, 60px); }   /* 比中文宽，右边不能过版画区左沿（版心 44%） */
html:lang(en) .mf h2, html:lang(en) .mf h3 { font-weight: 700; }
html:lang(en) .sub.second small, html:lang(en) .mf .cap { letter-spacing: 0; }
html:lang(en) .sub.second { line-height: 1.35; max-width: 19em; }
html:lang(en) .eyebrow { letter-spacing: .04em; }
html:lang(en) .stick.narrow h1 { font-size: 36px; }
html:lang(en) .stick.narrow .sub.second { font-size: 19px; }
html:lang(en) .mf-ch h3 { font-size: clamp(34px, 3.2vw, 48px); }
html:lang(en) .step h3 { font-size: clamp(28px, 2.6vw, 38px); }
html:lang(en) .mk h2 { font-size: clamp(32px, 3.1vw, 46px); }
@media (max-width: 900px) {
  html:lang(en) .how-head h2 { font-size: 34px; }
  html:lang(en) .mf-ch h3 { font-size: 30px; }
  html:lang(en) .mk h2, html:lang(en) .svc-teaser h2 { font-size: 32px; }
  html:lang(en) .step h3 { font-size: 28px; }
}