/* =========================================================
   云构数字官网 · 一镜到底
   浅灰 / 纯黑 / 一种电光蓝；3D 小店首屏 + 滚动叙事
   ========================================================= */

:root {
  --paper: #F4F5F7;
  --paper-2: #E8EAEE;
  --white: #FFFFFF;
  --ink: #101113;
  --ink-2: #17181C;
  --ink-3: #222329;
  --blue: #1F3BFF;
  --blue-2: #5B72FF;
  --muted: #6B6E76;
  --line: rgba(16, 17, 19, .12);
  --dim: rgba(244, 245, 247, .56);
  --dim-2: rgba(244, 245, 247, .34);
  --dline: rgba(244, 245, 247, .13);

  --sans: "Geist", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", "Songti SC", serif;
  --label: "Syne", "Geist", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --gut: clamp(20px, 3.9vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.55; letter-spacing: -.01em;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden;
}
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
::selection { background: var(--blue); color: #fff; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, ul, ol, dl, dd { margin: 0; }
ul, ol { list-style: none; padding: 0; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.wrap { width: 100%; max-width: 1480px; margin-inline: auto; padding-inline: var(--gut); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: -9999px; top: 12px; z-index: 300; background: var(--ink); color: #fff; padding: 10px 16px; }
.skip:focus { left: 16px; }
.nw { white-space: nowrap; }
.ph { display: inline-block; }

html:not(.lang-zh) .zh { display: none !important; }
html.lang-zh .en { display: none !important; }
html.lang-zh body { letter-spacing: 0; line-height: 1.75; }

.eyebrow { font-family: var(--label); font-weight: 600; font-size: 12px; letter-spacing: .05em; text-transform: uppercase; }
html.lang-zh .eyebrow { letter-spacing: .12em; }
.eyebrow.dim { color: var(--dim-2); }

/* ---------- 标题 ---------- */
.title { font-weight: 400; font-size: clamp(44px, 6.2vw, 100px); line-height: 1; letter-spacing: -.05em; text-wrap: balance; max-width: 14em; }
.title.big { font-size: clamp(56px, 8vw, 132px); line-height: .94; }
.title em, .quote em, .mega-per em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; }
.title em { color: var(--blue); }
.dark .title em { color: var(--blue-2); }
html.lang-zh .title { font-weight: 500; letter-spacing: -.02em; line-height: 1.18; font-size: clamp(36px, 4.8vw, 76px); }
html.lang-zh .title.big { font-size: clamp(44px, 6vw, 96px); line-height: 1.14; }
html.lang-zh .title em, html.lang-zh .quote em, html.lang-zh .mega-per em { font-family: var(--sans); font-style: normal; font-weight: 500; letter-spacing: -.02em; }
.lede { font-size: clamp(17px, 1.35vw, 20px); color: var(--muted); max-width: 32em; margin-top: 28px; text-wrap: pretty; }
.dark .lede { color: var(--dim); }
.fine { font-family: var(--label); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--dim-2); margin-top: 28px; }
html.lang-zh .fine { text-transform: none; letter-spacing: .1em; }

.sec-label { display: flex; align-items: center; gap: 12px; font-family: var(--label); font-weight: 600; font-size: 12.5px; letter-spacing: .05em; text-transform: uppercase; margin: 22px 0 26px; }
html.lang-zh .sec-label { letter-spacing: .14em; }
.sec-label .num { display: inline-grid; place-items: center; min-width: 30px; height: 22px; padding: 0 6px; border: 1px solid var(--blue); color: var(--blue); font-size: 11px; }
.dark .sec-label .num { border-color: var(--blue-2); color: var(--blue-2); }
.sec-label .dash { width: 22px; height: 1px; background: currentColor; opacity: .5; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 14px; height: 58px; padding: 0 30px; border-radius: 999px; font-weight: 500; font-size: 16.5px; letter-spacing: -.01em; transition: transform .5s var(--ease), background .3s, color .3s; white-space: nowrap; }
.btn .arr { transition: transform .5s var(--ease); }
.btn:hover .arr { transform: translateX(5px); }
.btn:active { transform: scale(.97); }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-light:hover { background: var(--blue); color: #fff; }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: #fff; color: var(--ink); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; pointer-events: none; }

/* ---------- 导航：差值混合，自动在深浅背景上反色 ---------- */
.nav { position: fixed; inset: 0 0 auto; z-index: 100; display: flex; align-items: center; gap: 28px; padding: 26px var(--gut); color: #fff; mix-blend-mode: difference; pointer-events: none; transition: transform .6s var(--ease); }
.nav > * { pointer-events: auto; }
.nav.hide { transform: translateY(-110%); }
.nav.on-blue { mix-blend-mode: normal; color: #fff; }
.logo { font-weight: 500; font-size: 27px; letter-spacing: -.05em; line-height: 1; }
.dot { display: inline-block; width: .2em; height: .2em; border-radius: 50%; background: currentColor; margin-left: .06em; vertical-align: baseline; }
.footer-mark .dot, .ab-mono .dot { background: var(--blue-2); }
.nav-links { display: flex; gap: 34px; margin-left: auto; }
.nav-links a, .nav-end .lang, .nav-cta { font-family: var(--label); font-weight: 600; font-size: 13.5px; letter-spacing: .02em; text-transform: uppercase; position: relative; }
html.lang-zh .nav-links a, html.lang-zh .nav-cta { letter-spacing: .1em; }
.nav-links a::after, .nav-cta::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease); }
.nav-links a:hover::after, .nav-cta:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-end { display: flex; align-items: center; gap: 26px; margin-left: 34px; }
.burger { display: none; width: 40px; height: 40px; position: relative; }
.burger i { position: absolute; left: 9px; right: 9px; height: 1.5px; background: currentColor; transition: transform .45s var(--ease), top .45s var(--ease); }
.burger i:first-child { top: 16px; }
.burger i:last-child { top: 23px; }
.burger[aria-expanded="true"] i:first-child { top: 19.5px; transform: rotate(45deg); }
.burger[aria-expanded="true"] i:last-child { top: 19.5px; transform: rotate(-45deg); }
.sheet { position: fixed; inset: 0; z-index: 90; background: var(--ink); color: var(--paper); padding: 100px var(--gut) 40px; }
.sheet[hidden] { display: none; }
.sheet-inner { display: grid; }
.sheet-inner a { display: flex; align-items: baseline; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--dline); font-size: 38px; font-weight: 400; letter-spacing: -.04em; opacity: 0; transform: translateY(16px); }
.sheet-inner a small { font-family: var(--label); font-size: 11px; color: var(--blue-2); letter-spacing: .05em; }
.sheet.open a { opacity: 1; transform: none; transition: opacity .5s var(--ease), transform .7s var(--ease); }
.sheet.open a:nth-child(2) { transition-delay: .04s; }
.sheet.open a:nth-child(3) { transition-delay: .08s; }
.sheet.open a:nth-child(4) { transition-delay: .12s; }
.sheet.open a:nth-child(5) { transition-delay: .16s; }
.sheet.open a:nth-child(6) { transition-delay: .2s; }

/* ---------- 光标 ---------- */
.cursor { display: none; }
.has-cursor .cursor { display: block; position: fixed; left: 0; top: 0; z-index: 400; width: 10px; height: 10px; margin: -5px 0 0 -5px; border-radius: 50%; background: #fff; mix-blend-mode: difference; pointer-events: none; transition: width .35s var(--ease), height .35s var(--ease), margin .35s var(--ease), opacity .3s; }
.has-cursor .cursor.big { width: 48px; height: 48px; margin: -24px 0 0 -24px; }
.has-cursor .cursor.hide { opacity: 0; }

/* ---------- 进场 ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(44px); transition: opacity 1.1s var(--ease), transform 1.2s var(--ease); transition-delay: var(--d, 0s); }
.js [data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js [data-reveal] { opacity: 1; transform: none; transition: none; } }

/* =========================================================
   首屏
   ========================================================= */
.hero { position: relative; height: 195vh; background: var(--paper); }
.hero-pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; opacity: 0; transition: opacity 1.2s ease; }
.hero-canvas.ready { opacity: 1; }
.hero-poster { position: absolute; z-index: 0; right: 0; top: 52%; transform: translateY(-46%); width: min(54vw, 940px); height: auto; pointer-events: none; transition: opacity 1s ease; }
.hero-poster.gone { opacity: 0; }
.hero-copy { position: absolute; z-index: 3; left: var(--gut); top: 50%; transform: translateY(-46%); width: min(620px, 46vw); will-change: transform, opacity; }
.hero-eyebrow { color: var(--muted); }
.hero-h1 { margin-top: 22px; font-weight: 400; font-size: clamp(44px, 5.2vw, 88px); line-height: .98; letter-spacing: -.05em; }
.hero-h1 em { font-family: var(--serif); font-style: italic; color: var(--blue); letter-spacing: -.02em; }
html.lang-zh .hero-h1 { font-weight: 500; letter-spacing: -.02em; line-height: 1.16; font-size: clamp(40px, 4.4vw, 74px); }
html.lang-zh .hero-h1 em { font-family: var(--sans); font-style: normal; font-weight: 500; }
.hero-price { display: flex; align-items: baseline; gap: 14px; margin-top: clamp(20px, 3vh, 34px); }
.hero-price b { font-weight: 300; font-size: clamp(64px, 7vw, 120px); letter-spacing: -.065em; line-height: .9; }
.hero-price > span { font-size: clamp(16px, 1.3vw, 20px); color: var(--muted); }
.hero-sub { margin-top: 18px; font-size: clamp(16px, 1.2vw, 18.5px); color: var(--muted); max-width: 30em; }
.hero-btns { display: flex; align-items: center; gap: 26px; margin-top: clamp(24px, 3.4vh, 36px); flex-wrap: wrap; }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--blue); }
.hero-link { font-family: var(--label); font-weight: 600; font-size: 13.5px; letter-spacing: .03em; text-transform: uppercase; border-bottom: 1px solid currentColor; padding-bottom: 3px; }
html.lang-zh .hero-link { letter-spacing: .1em; }
.hero-foot { position: absolute; z-index: 3; left: var(--gut); right: var(--gut); bottom: 30px; display: flex; justify-content: space-between; gap: 20px; color: var(--ink-3); }
.hero-count b { font-weight: 600; color: var(--blue); margin-right: 8px; font-variant-numeric: tabular-nums; }
.hero-shade { position: absolute; inset: 0; z-index: 5; background: var(--paper); opacity: 0; pointer-events: none; }.no-webgl .hero { height: 100vh; }
.no-webgl .hero-poster { opacity: 1; }
.no-webgl .hero-canvas { display: none; }

/* =========================================================
   01 作品示例：卡片层层堆叠
   ========================================================= */
.sec { padding: clamp(110px, 12vw, 190px) 0; position: relative; }
.sec-tight { padding-top: 40px; }
.dark { background: var(--ink); color: var(--paper); }


.stack { margin-top: clamp(64px, 7vw, 110px); }
.card {
  position: sticky; top: calc(92px + var(--i) * 16px); margin-bottom: 7vh;
  background: var(--ink-2); border: 1px solid var(--dline); border-radius: 18px; padding: 18px;
  transform-origin: 50% 0; transform: scale(var(--s, 1)); filter: brightness(var(--b, 1));
}
.card:last-child { margin-bottom: 0; }
.card-head { display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: 18px; padding: 6px 8px 18px; }
.card-no { font-family: var(--label); font-weight: 600; font-size: 13px; color: var(--blue-2); }
.card-name { font-size: clamp(26px, 2.6vw, 40px); font-weight: 400; letter-spacing: -.045em; line-height: 1; }
.card-meta { font-family: var(--label); font-weight: 600; font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; color: var(--dim-2); text-align: right; }
html.lang-zh .card-meta { letter-spacing: .1em; }
.card-stage {
  position: relative; aspect-ratio: 16 / 8.4; border-radius: 12px; overflow: hidden; isolation: isolate;
  background: radial-gradient(90% 120% at 20% 0%, rgba(255, 255, 255, .22), transparent 55%), linear-gradient(140deg, var(--m-img1), var(--m-img2));
}
.card-stage::after { content: ""; position: absolute; inset: 0; z-index: 0; opacity: .25; mix-blend-mode: overlay; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
.dev-d { position: absolute; z-index: 1; left: 6%; top: 9%; width: 68%; border-radius: 10px 10px 0 0; overflow: hidden; background: #fff; box-shadow: 0 50px 100px -30px rgba(0, 0, 0, .7); }
.dev-bar { height: 30px; display: flex; align-items: center; gap: 6px; padding: 0 12px; background: #F1F2F4; }
.dev-bar i { width: 9px; height: 9px; border-radius: 50%; background: #D9DBE0; }
.dev-bar span { margin-left: auto; margin-right: auto; transform: translateX(-24px); font-family: var(--label); font-size: 10.5px; letter-spacing: .04em; color: var(--muted); background: #fff; padding: 3px 18px; border-radius: 6px; }
.dev-d .screen { aspect-ratio: 1440 / 900; }
.dev-p { position: absolute; z-index: 2; right: 7%; top: 15%; width: 19%; border-radius: clamp(18px, 2.4vw, 34px); padding: clamp(5px, .5vw, 8px); background: #0B0B0D; box-shadow: 0 50px 90px -30px rgba(0, 0, 0, .8); }
/* 手机屏幕：状态栏 + 地址栏 + 网页 + 底部横条，按手机宽度等比缩放 */
.phn { container-type: inline-size; position: relative; aspect-ratio: 390 / 844; border-radius: clamp(14px, 1.9vw, 27px); overflow: hidden; background: #F6F6F7; display: flex; flex-direction: column; }
.ph-status { flex: none; height: 12.5cqw; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 1.4cqw 6.4cqw 0; color: #0B0B0D; }
.ph-status b { font-family: -apple-system, "SF Pro Text", var(--sans); font-weight: 600; font-size: 4.1cqw; letter-spacing: -.01em; padding-left: 2.6cqw; }
.ph-island { width: 30cqw; height: 8.6cqw; border-radius: 99px; background: #0B0B0D; }
.ph-icons { justify-self: end; display: flex; align-items: center; gap: 1.4cqw; }
.ph-icons svg { height: 3.2cqw; width: auto; fill: currentColor; }
.ph-icons svg:last-child { height: 3.4cqw; }
.ph-url { flex: none; margin: .6cqw 4cqw 2.4cqw; height: 9.4cqw; border-radius: 3cqw; background: #E6E7EA; display: flex; align-items: center; justify-content: center; gap: 1.6cqw; font-family: -apple-system, "SF Pro Text", var(--sans); font-size: 3.7cqw; color: #2A2B30; letter-spacing: -.01em; }
.ph-url svg { height: 3cqw; width: auto; fill: #6E7078; }
.dev-p .screen { flex: 1; min-height: 0; }
.ph-home { position: absolute; z-index: 3; left: 50%; bottom: 2cqw; width: 34cqw; height: 1.3cqw; border-radius: 99px; background: rgba(11, 11, 13, .55); transform: translateX(-50%); pointer-events: none; }

.screen { container-type: inline-size; position: relative; overflow: hidden; background: var(--m-bg, #eee); }
.screen > .page { position: absolute; inset: 0 0 auto; transition: transform 6s cubic-bezier(.65, 0, .35, 1); will-change: transform; }
.screen img { width: 100%; height: auto; display: block; }
.mock { background: var(--m-bg); color: var(--m-ink); font-family: var(--sans); letter-spacing: 0; }
.mock .ph-img { position: relative; overflow: hidden; border-radius: .5cqw; background: radial-gradient(120% 90% at 22% 18%, rgba(255, 255, 255, .34), transparent 55%), radial-gradient(90% 80% at 85% 90%, rgba(0, 0, 0, .28), transparent 60%), linear-gradient(150deg, var(--m-img1), var(--m-img2)); }
.mock .bar { display: block; height: .55cqw; border-radius: 1cqw; background: currentColor; opacity: .14; }
.mock .serif { font-family: var(--serif); font-weight: 400; letter-spacing: -.02em; line-height: .95; }
.mock-d .m-nav { display: flex; align-items: center; gap: 2.6cqw; padding: 2.2cqw 4.4cqw; }
.mock-d .m-nav .serif { font-size: 2.1cqw; margin-right: auto; }
.mock-d .m-nav .bar { width: 4.6cqw; }
.mock-d .m-pill { display: inline-block; height: 2.9cqw; width: 10cqw; border-radius: 3cqw; background: var(--m-accent); }
.mock-d .m-hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 4cqw; padding: 3.4cqw 4.4cqw 5cqw; align-items: end; }
.mock-d .m-kicker { font-size: 1.05cqw; letter-spacing: .2em; text-transform: uppercase; opacity: .6; margin-bottom: 1.8cqw; }
.mock-d .m-title { font-size: 6.6cqw; }
.mock-d .m-lines { display: grid; gap: 1.1cqw; margin: 2.6cqw 0 3cqw; max-width: 30cqw; }
.mock-d .m-hero .ph-img { aspect-ratio: 4 / 4.6; }
.mock-d .m-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6cqw; padding: 0 4.4cqw 5cqw; }
.mock-d .m-strip .ph-img { aspect-ratio: 1; }
.mock-d .m-menu { padding: 4cqw 4.4cqw 5cqw; display: grid; grid-template-columns: 1fr 1fr; gap: 1.8cqw 6cqw; border-top: 1px solid rgba(0, 0, 0, .08); }
.mock-d .m-menu h4 { grid-column: 1 / -1; margin: 0 0 1cqw; font-size: 3.4cqw; }
.mock .m-row { display: flex; align-items: center; gap: 1.2cqw; }
.mock-d .m-row .bar:first-child { width: 14cqw; opacity: .3; }
.mock .m-row .dots { flex: 1; border-bottom: .15cqw dotted currentColor; opacity: .25; }
.mock-d .m-row .bar:last-child { width: 3.6cqw; background: var(--m-accent); opacity: .9; }
.mock-d .m-info { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 3cqw; padding: 4cqw 4.4cqw; background: var(--m-ink); color: var(--m-bg); }
.mock-d .m-info .serif { font-size: 2.2cqw; margin-bottom: 1.4cqw; }
.mock-d .m-info .bar { margin-top: .9cqw; width: 70%; opacity: .25; }
.mock-d .m-foot { padding: 3cqw 4.4cqw 4cqw; display: flex; justify-content: space-between; align-items: center; background: var(--m-ink); color: var(--m-bg); border-top: 1px solid rgba(255, 255, 255, .1); }
.mock-d .m-foot .serif { font-size: 4cqw; }
.mock-p .m-nav { display: flex; align-items: center; justify-content: space-between; padding: 16cqw 6cqw 4cqw; }
.mock-p .m-nav .serif { font-size: 6.4cqw; }
.mock-p .m-burger { width: 6cqw; height: 3cqw; border-top: .5cqw solid currentColor; border-bottom: .5cqw solid currentColor; opacity: .7; }
.mock-p .m-hero { padding: 4cqw 6cqw 8cqw; }
.mock-p .m-hero .ph-img { aspect-ratio: 4 / 4.4; border-radius: 2cqw; margin-bottom: 6cqw; }
.mock-p .m-kicker { font-size: 3cqw; letter-spacing: .2em; text-transform: uppercase; opacity: .6; margin-bottom: 3cqw; }
.mock-p .m-title { font-size: 14cqw; }
.mock-p .bar { height: 1.8cqw; }
.mock-p .m-lines { display: grid; gap: 3cqw; margin: 6cqw 0; }
.mock-p .m-pill { display: block; height: 11cqw; border-radius: 6cqw; background: var(--m-accent); }
.mock-p .m-menu { padding: 8cqw 6cqw; display: grid; gap: 5cqw; border-top: 1px solid rgba(0, 0, 0, .08); }
.mock-p .m-menu h4 { margin: 0 0 2cqw; font-size: 9cqw; }
.mock-p .m-row { gap: 3cqw; }
.mock-p .m-row .bar:first-child { width: 40cqw; opacity: .3; }
.mock-p .m-row .dots { border-bottom-width: .5cqw; }
.mock-p .m-row .bar:last-child { width: 10cqw; background: var(--m-accent); opacity: .9; }
.mock-p .m-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 3cqw; padding: 0 6cqw 8cqw; }
.mock-p .m-strip .ph-img { aspect-ratio: 1; border-radius: 1.6cqw; }
.mock-p .m-info { padding: 9cqw 6cqw; background: var(--m-ink); color: var(--m-bg); display: grid; gap: 6cqw; }
.mock-p .m-info .serif { font-size: 7cqw; margin-bottom: 2cqw; }
.mock-p .m-info .bar { margin-top: 2.2cqw; opacity: .25; }

/* =========================================================
   03 说清楚：一屏一个问题，“通常”被蓝线划掉，“在云构”的答案放大出现
   ========================================================= */
.qx { position: relative; height: 360vh; background: var(--paper); }
.qx-pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }
.qx-in { height: 100%; display: flex; flex-direction: column; padding-top: 104px; padding-bottom: 34px; }
.qx-top { display: flex; justify-content: space-between; align-items: center; }
.qx-top .sec-label { margin: 0; }
.qx-count { color: var(--muted); font-variant-numeric: tabular-nums; }
.qx-stage { position: relative; flex: 1; }
.qs { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; opacity: 0; will-change: transform, opacity; }
.qs-n { position: absolute; right: -.04em; top: 50%; transform: translateY(-54%); font-weight: 300; font-size: clamp(220px, 34vw, 560px); line-height: .8; letter-spacing: -.08em; color: transparent; -webkit-text-stroke: 1.5px rgba(16, 17, 19, .08); pointer-events: none; }
.qs-q { position: relative; font-weight: 400; font-size: clamp(48px, 6.4vw, 108px); line-height: .98; letter-spacing: -.05em; max-width: 12em; text-wrap: balance; }
.qs-q em { font-family: var(--serif); font-style: italic; color: var(--blue); letter-spacing: -.02em; }
html.lang-zh .qs-q { font-weight: 500; letter-spacing: -.02em; line-height: 1.16; font-size: clamp(40px, 5vw, 84px); }
html.lang-zh .qs-q em { font-family: var(--sans); font-style: normal; }
.qs-usual, .qs-ours { position: relative; display: grid; grid-template-columns: 120px 1fr; gap: 20px; align-items: baseline; max-width: 1080px; }
.qs-usual { margin-top: clamp(30px, 5vh, 56px); }
.qs-ours { margin-top: clamp(18px, 3vh, 30px); }
.qs-usual small, .qs-ours small { font-family: var(--label); font-weight: 600; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; padding-top: .5em; }
html.lang-zh .qs-usual small, html.lang-zh .qs-ours small { letter-spacing: .16em; }
.qs-usual small { color: var(--muted); }
.qs-ours small { color: var(--blue); }
.qs-strike { --s: 0%; font-size: clamp(19px, 1.65vw, 26px); line-height: 1.55; letter-spacing: -.02em; color: var(--ink-3); max-width: 28em; }
/* 划线画在每一行文字的正中间（grid 子元素会变成块，所以画在里面的行内文字上） */
.qs-strike > span { background: linear-gradient(var(--blue), var(--blue)) no-repeat 0 54% / var(--s) 3px; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
html.lang-zh .qs-strike { letter-spacing: 0; line-height: 1.7; }
.qs-ours b { font-weight: 400; font-size: clamp(34px, 3.8vw, 62px); line-height: 1.04; letter-spacing: -.045em; color: var(--ink); }
html.lang-zh .qs-ours b { font-weight: 500; letter-spacing: -.01em; line-height: 1.25; font-size: clamp(30px, 3.2vw, 52px); }
.qs-end { align-items: flex-start; }
.qs-end .qs-q { max-width: 10em; }
.qs-endsub { margin-top: 22px; font-size: clamp(19px, 1.6vw, 24px); color: var(--muted); }
.qs-end .btn { margin-top: 34px; }
.qx-foot { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.qx-dots { display: flex; gap: 8px; }
.qx-dots i { width: 8px; height: 8px; border-radius: 99px; background: rgba(16, 17, 19, .16); transition: width .5s var(--ease), background .3s; }
.qx-dots i.on { width: 28px; background: var(--blue); }
.qx-dots i.done { background: var(--ink); }
.qx-hint { color: var(--muted); transition: opacity .4s; }

/* =========================================================
   03 账单：小票机
   ========================================================= */
.rs { position: relative; height: 270vh; background: var(--paper); }
.rs-pin { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; display: flex; align-items: center; padding-top: 60px; }
.rs-grid { display: grid; grid-template-columns: 1fr minmax(420px, 580px); gap: clamp(40px, 6vw, 120px); align-items: start; }
.rs-left .sec-label { margin-top: 0; }
.rs-left .title { font-size: clamp(40px, 5vw, 82px); }
.tally { margin-top: clamp(28px, 5vh, 56px); padding-top: 22px; border-top: 1px solid var(--line); max-width: 560px; }
.tally-k { color: var(--muted); }
.tally-v { position: relative; display: inline-block; margin-top: 8px; }
.tally-num { font-weight: 300; font-size: clamp(56px, 6.6vw, 112px); letter-spacing: -.06em; line-height: 1; font-variant-numeric: tabular-nums; color: var(--ink); }
.tally-strike { position: absolute; left: -2%; top: 54%; height: 5px; width: 104%; background: var(--blue); transform-origin: left; transform: scaleX(0) rotate(-3deg); transition: transform .7s var(--ease); border-radius: 3px; }
.tally.done .tally-strike { transform: scaleX(1) rotate(-3deg); }
.tally.done .tally-num { color: var(--muted); }
.tally-here { margin-top: 18px; font-size: clamp(18px, 1.6vw, 24px); letter-spacing: -.02em; opacity: 0; transform: translateY(12px); transition: opacity .6s var(--ease), transform .8s var(--ease); }
.tally.done .tally-here { opacity: 1; transform: none; }
.tally-here b { color: var(--blue); font-weight: 600; }
.rs-note { margin-top: 26px; font-size: 12.5px; color: var(--muted); max-width: 46em; }

.rs-right { position: relative; display: grid; justify-items: center; }
.printer { position: relative; z-index: 3; width: 100%; height: 86px; }
.pr-top { position: absolute; left: 4%; right: 4%; top: 0; height: 26px; border-radius: 14px 14px 4px 4px; background: linear-gradient(180deg, #3A3C44, #23252B); transform: perspective(400px) rotateX(38deg); transform-origin: bottom; }
.pr-face { position: absolute; left: 0; right: 0; top: 20px; height: 54px; border-radius: 10px; background: linear-gradient(180deg, #24262C, #121317); box-shadow: 0 30px 50px -24px rgba(16, 17, 19, .55), inset 0 1px 0 rgba(255, 255, 255, .08); display: flex; align-items: center; justify-content: space-between; padding: 0 22px; }
.pr-logo { color: rgba(244, 245, 247, .75); font-weight: 500; font-size: 17px; letter-spacing: -.04em; }

.pr-led { width: 8px; height: 8px; border-radius: 50%; background: var(--blue-2); box-shadow: 0 0 10px var(--blue-2); }
.printer.busy .pr-led { animation: led .25s steps(1) infinite; }
.printer.busy .pr-face { animation: buzz .09s linear infinite; }
@keyframes led { 50% { opacity: .25; } }
@keyframes buzz { 50% { transform: translateY(.6px); } }
.pr-slot { position: absolute; left: 7%; right: 7%; top: 66px; height: 8px; border-radius: 4px; background: #050506; box-shadow: inset 0 2px 3px rgba(0, 0, 0, .8); }
.paper-mask { position: relative; z-index: 2; width: 88%; margin-top: -16px; }
.paper {
  position: relative; padding: 30px 26px 0; background: #FBFBF8; color: #1B1C20; font-family: "Geist Mono", ui-monospace, monospace; font-size: clamp(12.5px, 1.08vw, 15.5px); line-height: 1.45; letter-spacing: .01em;
  box-shadow: 0 30px 60px -30px rgba(16, 17, 19, .35), inset 0 12px 14px -10px rgba(0, 0, 0, .18);
  transform: scale(var(--fit, 1)); transform-origin: 50% 0; clip-path: inset(0 0 calc((1 - var(--feed, 0)) * 100%) 0); padding-bottom: 12px; transition: clip-path .55s cubic-bezier(.3, .7, .2, 1);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.paper { -webkit-mask: linear-gradient(#000 0 0) top / 100% calc(100% - 8px) no-repeat, conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / 14px 8px repeat-x; mask: linear-gradient(#000 0 0) top / 100% calc(100% - 8px) no-repeat, conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / 14px 8px repeat-x; }
.paper-mask { filter: drop-shadow(0 24px 30px rgba(16, 17, 19, .16)); }
html.lang-zh .paper { font-family: "Geist Mono", "PingFang SC", "Microsoft YaHei", monospace; }
.rc-head { text-align: center; padding-bottom: 14px; border-bottom: 1.5px dashed rgba(27, 28, 32, .35); color: #55575E; }
.rc-brand { font-weight: 600; font-size: 1.3em; letter-spacing: .14em; color: #1B1C20; }
.rc-lines { padding: 6px 0; }
.rc-line { padding: 9px 0; border-bottom: 1px dotted rgba(27, 28, 32, .25); opacity: 0; transform: translateY(-6px); transition: opacity .35s ease, transform .5s var(--ease); }
.rc-line.on { opacity: 1; transform: none; }
.rc-row { display: flex; justify-content: space-between; gap: 12px; }
.rc-name { font-weight: 600; }
.rc-inc { font-weight: 600; color: var(--blue); white-space: nowrap; opacity: 0; transform: scale(1.6); transition: opacity .25s ease, transform .45s cubic-bezier(.3, 1.6, .5, 1); transition-delay: .35s; }
.rc-line.on .rc-inc { opacity: 1; transform: none; }
.rc-was { display: flex; justify-content: space-between; color: #7A7C83; font-size: .92em; margin-top: 2px; }
.rc-was s { position: relative; text-decoration: none; }
.rc-was s::after { content: ""; position: absolute; left: -3px; right: -3px; top: 52%; height: 1.5px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease) .2s; }
.rc-line.on .rc-was s::after { transform: scaleX(1); }
.rc-total { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0 4px; border-top: 1.5px dashed rgba(27, 28, 32, .35); margin-top: 6px; font-weight: 600; opacity: 0; transition: opacity .4s ease; }
.rc-total.on { opacity: 1; }
.rc-big { font-family: var(--sans); font-weight: 400; font-size: 2.9em; letter-spacing: -.05em; line-height: 1; }
.rc-big mark { background: linear-gradient(transparent 58%, rgba(31, 59, 255, .22) 58%); color: inherit; padding: 0 .06em; }
.rc-big small { font-size: .38em; letter-spacing: 0; margin-left: 2px; }
.rc-sub { color: #6A6C73; font-size: .92em; padding-bottom: 14px; opacity: 0; transition: opacity .4s ease .1s; }
.rc-total.on + .rc-sub { opacity: 1; }
.rc-foot { text-align: center; border-top: 1.5px dashed rgba(27, 28, 32, .35); padding: 16px 0 26px; display: grid; gap: 10px; color: #55575E; }
.rc-own { font-weight: 600; color: #1B1C20; }
.rc-bar { height: 42px; margin: 0 8%; background: repeating-linear-gradient(90deg, #1B1C20 0 2px, transparent 2px 4px, #1B1C20 4px 7px, transparent 7px 9px, #1B1C20 9px 10px, transparent 10px 13px); }
.rc-stamp {
  position: absolute; right: 7%; bottom: 7%; padding: 8px 14px; border: 3px solid var(--blue); border-radius: 8px; color: var(--blue);
  font-family: var(--label); font-weight: 700; font-size: 1.5em; letter-spacing: .08em; text-transform: uppercase; background: rgba(251, 251, 248, .6);
  transform: rotate(-12deg) scale(2.2); opacity: 0; transition: transform .5s cubic-bezier(.3, 1.6, .5, 1), opacity .15s; mix-blend-mode: multiply;
}
.rc-stamp.on { transform: rotate(-12deg) scale(1); opacity: .92; }

/* =========================================================
   03 价格：钉住，24 个方块
   ========================================================= */
.ps { position: relative; }
.ps-pin { min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: 140px 0 120px; }
.ps-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 6vw, 110px); align-items: center; }
.ps-left .sec-label { margin-top: 0; }
.mega { font-weight: 300; font-size: clamp(120px, 15.5vw, 280px); line-height: .82; letter-spacing: -.065em; margin-left: -.04em; }
.mega-cur { font-size: .36em; vertical-align: top; position: relative; top: .14em; margin-right: .04em; color: var(--blue-2); letter-spacing: 0; }
.mega-per { font-size: clamp(22px, 2vw, 30px); letter-spacing: -.03em; margin-top: 18px; color: var(--dim); }
.mega-per em { color: var(--paper); }
.facts { margin-top: clamp(28px, 4vh, 48px); display: grid; max-width: 520px; }
.facts > div { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-top: 1px solid var(--dline); font-size: 16px; }
.facts > div:last-child { border-bottom: 1px solid var(--dline); }
.facts dt { color: var(--dim); }
.facts dd small { color: var(--dim-2); font-size: 13px; }
.months-head { display: flex; justify-content: space-between; gap: 16px; color: var(--dim); margin-bottom: 16px; flex-wrap: wrap; }
.months-head b { color: var(--paper); font-weight: 600; font-variant-numeric: tabular-nums; }
#mLabel { font-variant-numeric: tabular-nums; }
.m-replay { order: 3; flex-basis: 100%; text-align: left; color: var(--dim-2); margin-top: -6px; opacity: 0; pointer-events: none; transition: opacity .4s, color .2s; }
.m-replay.show { opacity: 1; pointer-events: auto; }
.m-replay:hover { color: var(--paper); }
.months { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.mo { position: relative; aspect-ratio: 1; border-radius: 6px; border: 1px solid var(--dline); transition: background .35s var(--ease), border-color .35s, transform .5s var(--ease), opacity .4s; }
.mo span { position: absolute; left: 7px; top: 5px; font-family: var(--label); font-size: 10px; font-weight: 600; color: var(--dim-2); transition: color .3s; }
.mo.on { background: var(--paper); border-color: var(--paper); animation: mo-pop .55s var(--ease); }
@keyframes mo-pop { 0% { transform: scale(.8); background: var(--blue-2); border-color: var(--blue-2); box-shadow: 0 0 30px rgba(91, 114, 255, .7); } 100% { transform: none; } }
.mo.on span { color: var(--ink); }
.mo.own { background: var(--blue); border-color: var(--blue); transform: scale(1.06); box-shadow: 0 0 40px rgba(31, 59, 255, .6); }
.mo.own span { color: #fff; }
.months.y3 .mo { opacity: .5; }
.months.y3 .mo.own { opacity: 1; }
.m-status { display: grid; margin: 28px 0 30px; }
.m-phase { grid-area: 1 / 1; opacity: 0; transform: translateY(10px); transition: opacity .5s var(--ease), transform .6s var(--ease); }
.m-phase.on { opacity: 1; transform: none; }
.m-phase h3 { font-size: clamp(30px, 3vw, 46px); font-weight: 400; letter-spacing: -.045em; line-height: 1; }
.m-phase.own-ph h3 { color: var(--blue-2); }
html.lang-zh .m-phase h3 { font-weight: 500; letter-spacing: -.01em; line-height: 1.25; }
.m-phase p { color: var(--dim); margin-top: 10px; max-width: 30em; }

/* =========================================================
   04 先看再付：电光蓝整屏
   ========================================================= */
.pv { background: var(--blue); color: #fff; overflow: hidden; }
.pv .sec-label { color: #fff; }
.pv .sec-label .num { border-color: #fff; color: #fff; }
.pv .title em { color: #fff; opacity: .72; }
.pv .title { max-width: 12em; }
.pv-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(36px, 5vw, 90px); align-items: center; margin-top: clamp(56px, 6vw, 96px); }
.pv-steps { display: grid; }
.pv-steps li { display: grid; grid-template-columns: 56px 1fr; gap: 10px; padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, .22); opacity: .35; transform: translateX(-10px); transition: opacity .6s var(--ease), transform .8s var(--ease); }
.pv-steps li:last-child { border-bottom: 1px solid rgba(255, 255, 255, .22); }
.pv-steps li.on { opacity: 1; transform: none; }
.pv-n { font-family: var(--label); font-weight: 600; font-size: 13px; padding-top: 6px; }
.pv-steps b { display: block; font-weight: 400; font-size: clamp(22px, 2vw, 30px); letter-spacing: -.035em; line-height: 1.15; }
html.lang-zh .pv-steps b { font-weight: 500; letter-spacing: 0; }
.pv-steps p { margin-top: 6px; color: rgba(255, 255, 255, .7); font-size: 15.5px; }
.pv-shot { position: relative; padding: 0 0 40px 40px; }
.pv-win { position: relative; border-radius: 14px; overflow: hidden; background: #fff; box-shadow: 0 60px 100px -40px rgba(4, 10, 60, .75), 0 0 0 1px rgba(255, 255, 255, .25); transform: perspective(1400px) rotateY(-7deg) rotateX(3deg); }
.pv-bar { height: 34px; display: flex; align-items: center; gap: 6px; padding: 0 14px; background: #F1F2F4; }
.pv-bar i { width: 9px; height: 9px; border-radius: 50%; background: #D5D8DE; }
.pv-bar span { margin: 0 auto; transform: translateX(-20px); font-family: "Geist Mono", monospace; font-size: 11.5px; color: var(--muted); background: #fff; padding: 3px 12px; border-radius: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 70%; }
.pv-screen { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #F3EADC; }
.pv-page { position: absolute; inset: 0; opacity: 0; transform: scale(1.03); transition: opacity .8s var(--ease), transform 1.2s var(--ease); container-type: inline-size; }
.pv-page.on { opacity: 1; transform: none; }
.pv-page .mock { width: 100%; }
.pv-page img { width: 100%; height: auto; display: block; }
.pv-ribbon { position: absolute; right: -54px; top: 60px; transform: rotate(35deg); width: 260px; text-align: center; padding: 7px 0; background: var(--ink); color: #fff; font-family: var(--label); font-weight: 600; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; box-shadow: 0 10px 20px -8px rgba(0, 0, 0, .5); }
html.lang-zh .pv-ribbon { letter-spacing: .16em; }
.pv-ref { position: absolute; left: 0; bottom: 0; display: grid; gap: 4px; padding: 16px 18px; border-radius: 14px; background: var(--ink); color: var(--paper); box-shadow: 0 30px 60px -24px rgba(0, 0, 0, .6); transform: rotate(-4deg); }
.pv-ref small { font-family: var(--label); font-weight: 600; font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--blue-2); }
.pv-ref b { font-weight: 400; font-size: 19px; letter-spacing: -.03em; }
html.lang-zh .pv-ref b { font-weight: 500; letter-spacing: 0; }
.pv-ref-url { font-family: "Geist Mono", monospace; font-size: 12px; color: var(--dim); text-decoration: underline; text-underline-offset: 3px; }
.pv-zero { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 1.6vw, 22px); margin-top: clamp(64px, 7vw, 110px); }
.pv-zero li { border-radius: 20px; background: rgba(255, 255, 255, .1); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2); padding: clamp(22px, 2.4vw, 34px); display: grid; align-content: start; gap: 6px; }
.pv-big { font-weight: 300; font-size: clamp(64px, 6.6vw, 112px); letter-spacing: -.065em; line-height: .9; }
html.lang-zh .pv-big { font-weight: 400; letter-spacing: -.02em; }
.pv-zero b { font-weight: 400; font-size: clamp(22px, 1.9vw, 28px); letter-spacing: -.035em; }
html.lang-zh .pv-zero b { font-weight: 500; letter-spacing: 0; }
.pv-zero p { margin-top: 8px; color: rgba(255, 255, 255, .72); font-size: 15.5px; }
.pv-foot { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; margin-top: clamp(40px, 4vw, 60px); }
.pv .btn-light:hover { background: var(--ink); color: #fff; }
.pv-rules { color: rgba(255, 255, 255, .72); font-size: 14.5px; max-width: 40em; }

/* =========================================================
   04 包含 vs 增值
   ========================================================= */
.inc-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 4vw, 64px); margin-top: clamp(56px, 6vw, 90px); align-items: start; }
.inc-col > .eyebrow { color: var(--muted); margin-bottom: 18px; }
.rows li { display: grid; grid-template-columns: 52px 1fr auto; align-items: baseline; gap: 12px; padding: 20px 0; border-top: 1px solid var(--line); transition: padding .5s var(--ease), color .3s; }
.rows li:last-child { border-bottom: 1px solid var(--line); }
.rows li:hover { padding-left: 10px; color: var(--blue); }
.r-no { font-family: var(--label); font-weight: 600; font-size: 12px; color: var(--blue); }
.rows b { font-weight: 400; font-size: clamp(22px, 2vw, 30px); letter-spacing: -.035em; line-height: 1.1; }
html.lang-zh .rows b { font-weight: 500; letter-spacing: 0; }
.r-d { color: var(--muted); font-size: 15px; text-align: right; }
.quote { margin-top: 44px; font-size: clamp(30px, 3vw, 48px); letter-spacing: -.045em; line-height: 1.05; text-wrap: balance; }
html.lang-zh .quote { letter-spacing: -.01em; line-height: 1.3; font-weight: 500; }
.quote em { color: var(--blue); }
.addon { background: var(--ink); color: var(--paper); border-radius: 20px; padding: clamp(26px, 3vw, 40px); display: grid; gap: 26px; }
.addon > .eyebrow { color: var(--blue-2); margin: 0; }
.flow { padding: 22px; border-radius: 14px; border: 1px solid var(--dline); }
.flow-k { font-family: var(--label); font-weight: 600; font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; color: var(--dim-2); margin-bottom: 18px; }
html.lang-zh .flow-k { letter-spacing: .12em; text-transform: none; }
.flow ol { display: grid; grid-template-columns: repeat(5, 1fr); position: relative; counter-reset: f; }
.flow ol::before { content: ""; position: absolute; left: 10%; right: 10%; top: 16px; height: 1px; background: var(--dline); }
.flow li { counter-increment: f; display: grid; justify-items: center; gap: 10px; font-size: 13px; color: var(--dim-2); position: relative; transition: color .3s; }
.flow li::before { content: counter(f); width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; font-family: var(--label); font-weight: 600; font-size: 12px; background: var(--ink-2); border: 1px solid var(--dline); transition: background .35s, border-color .35s, color .35s; }
.flow li.lit { color: var(--paper); }
.flow li.lit::before { background: var(--blue); border-color: var(--blue); color: #fff; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags li { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--dline); font-size: 14.5px; transition: background .3s, color .3s; }
.tags li::before { content: "+ "; color: var(--blue-2); }
.tags li:hover { background: var(--paper); color: var(--ink); }
.note { font-size: 14.5px; color: var(--dim); }

/* =========================================================
   05 域名
   ========================================================= */
.domain-line { font-weight: 300; font-size: clamp(54px, 10.4vw, 186px); letter-spacing: -.06em; line-height: 1; white-space: nowrap; display: flex; align-items: baseline; overflow: hidden; margin-bottom: clamp(24px, 3vw, 40px); padding-bottom: .06em; }
.domain-line .tld { font-family: var(--serif); font-style: italic; color: var(--blue); letter-spacing: -.02em; transition: opacity .4s; }
.caret { width: .035em; height: .74em; background: var(--blue); align-self: center; margin: 0 .03em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.dfacts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 clamp(24px, 3vw, 48px); margin-top: clamp(48px, 5vw, 80px); }
.dfacts > div { border-top: 1px solid var(--line); padding-top: 20px; display: grid; gap: 8px; align-content: start; }
.dfacts b { font-weight: 500; font-size: 21px; letter-spacing: -.03em; }
.dfacts p { color: var(--muted); }

/* =========================================================
   06 常见问题
   ========================================================= */
.faq-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: clamp(32px, 5vw, 80px); align-items: start; }
.faq-grid > div:first-child { position: sticky; top: 110px; }
.faq-grid .sec-label { margin-top: 0; }
.faq-side { margin-top: 26px; color: var(--muted); max-width: 22em; }
.faq-group { font-family: var(--label); font-weight: 600; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--blue); padding: 40px 0 14px; }
.faq-group:first-child { padding-top: 0; }
html.lang-zh .faq-group { letter-spacing: .14em; }
.qa { border-top: 1px solid var(--line); }
.qa:has(+ .faq-group) { border-bottom: 1px solid var(--line); }
.qa:last-child { border-bottom: 1px solid var(--line); }
.qa > button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0; text-align: left; font-size: clamp(19px, 1.7vw, 25px); letter-spacing: -.03em; transition: color .3s; }
.qa > button:hover { color: var(--blue); }
.qa > button i { flex: none; width: 16px; height: 16px; position: relative; }
.qa > button i::before, .qa > button i::after { content: ""; position: absolute; left: 0; right: 0; top: 7.25px; height: 1.5px; background: currentColor; transition: transform .6s var(--ease); }
.qa > button i::after { transform: rotate(90deg); }
.qa.open > button i::after { transform: rotate(0); }
.qa-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .6s var(--ease); }
.qa-a > div { overflow: hidden; }
.qa-a p { padding: 0 40px 26px 0; color: var(--muted); max-width: 42em; }
.qa.open .qa-a { grid-template-rows: 1fr; }

/* =========================================================
   09 谁来做：个人工作室
   ========================================================= */
.ab { padding-top: 40px; }
.ab-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 6vw, 110px); align-items: center; }
.ab-photo { position: relative; aspect-ratio: 4 / 5; border-radius: 24px; overflow: hidden; background: radial-gradient(120% 90% at 20% 0%, #3A52FF 0%, var(--blue) 45%, #0E1C9C 100%); display: grid; place-items: center; }
.ab-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ab-mono { color: #fff; font-weight: 300; font-size: clamp(160px, 20vw, 320px); letter-spacing: -.08em; line-height: 1; }
.ab-copy .sec-label { margin-top: 0; }
.ab-points { margin-top: 40px; display: grid; border-top: 1px solid var(--line); }
.ab-points li { display: grid; grid-template-columns: 1fr 1.3fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.ab-points b { font-weight: 400; font-size: clamp(20px, 1.7vw, 26px); letter-spacing: -.03em; }
html.lang-zh .ab-points b { font-weight: 500; letter-spacing: 0; }
.ab-points li > span { color: var(--muted); }

/* =========================================================
   07 开始
   ========================================================= */
.start-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 110px); align-items: start; }
.start-copy .sec-label { margin-top: 0; }
.start-steps { margin-top: 40px; display: grid; gap: 12px; max-width: 520px; }
.start-steps li { display: flex; gap: 16px; align-items: baseline; font-size: 17px; }
.start-steps li > span:first-child { font-family: var(--label); font-weight: 600; font-size: 12px; color: var(--blue-2); }
.channels-wrap { margin-top: 56px; max-width: 520px; }
.channels-wrap:has(.channels:empty) { display: none; }
.channels { margin-top: 14px; display: grid; border-top: 1px solid var(--dline); }
.fine-dim { margin-top: 14px; font-size: 14px; color: var(--dim-2); }
.channels:empty { display: none; }
.channels li { border-bottom: 1px solid var(--dline); }
.channels a, .channels button { width: 100%; display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 16px 0; text-align: left; transition: color .3s; }
.channels small { font-family: var(--label); font-weight: 600; font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; color: var(--dim-2); }
html.lang-zh .channels small { letter-spacing: .12em; }
.channels b { font-weight: 400; font-size: 20px; letter-spacing: -.03em; word-break: break-all; text-align: right; }
.channels a:hover, .channels button:hover { color: var(--blue-2); }
.form { background: var(--ink-2); border: 1px solid var(--dline); border-radius: 20px; padding: clamp(22px, 3vw, 36px); }
.form-body { display: grid; gap: 22px; }
.f-group { border: 0; margin: 0; padding: 0; display: grid; gap: 16px; min-width: 0; }
.f-group > legend, .f-more > summary { display: flex; align-items: center; gap: 12px; padding: 0; margin-bottom: 4px; font-size: 19px; letter-spacing: -.03em; }
html.lang-zh .f-group > legend, html.lang-zh .f-more > summary { letter-spacing: 0; font-weight: 500; }
.f-step { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--blue); color: #fff; font-family: var(--label); font-weight: 600; font-size: 12px; letter-spacing: 0; }
.f-group + .f-group { padding-top: 22px; border-top: 1px solid var(--dline); }
.f-more > summary { cursor: pointer; list-style: none; }
.f-more > summary::-webkit-details-marker { display: none; }
.f-more > summary .f-step { background: transparent; box-shadow: inset 0 0 0 1px var(--dim-2); color: var(--dim); }
.f-more > summary i { margin-left: auto; width: 14px; height: 14px; position: relative; color: var(--dim); }
.f-more > summary i::before, .f-more > summary i::after { content: ""; position: absolute; left: 0; right: 0; top: 6.25px; height: 1.5px; background: currentColor; transition: transform .5s var(--ease); }
.f-more > summary i::after { transform: rotate(90deg); }
.f-more[open] > summary i::after { transform: rotate(0); }
.f-more[open] { display: grid; gap: 16px; }
.f-hint { font-size: 14px; color: var(--dim-2); }
.f-rules { font-size: 13.5px; color: var(--dim-2); text-align: center; text-wrap: pretty; }
.f-rules a { color: var(--dim); text-decoration: underline; text-underline-offset: 3px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 8px; }
.f-label { font-family: var(--label); font-weight: 600; font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase; color: var(--dim); }
html.lang-zh .f-label { letter-spacing: .12em; }
.field input::placeholder { color: var(--dim-2); }
.field input, .field textarea { width: 100%; font: inherit; font-size: 16px; color: var(--paper); background: var(--ink); border: 1px solid var(--dline); border-radius: 10px; padding: 14px 15px; transition: border-color .3s, box-shadow .3s; }
.field textarea { resize: vertical; min-height: 96px; }
.field textarea::placeholder { color: var(--dim-2); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue-2); box-shadow: 0 0 0 4px rgba(91, 114, 255, .18); }
.field.invalid input { border-color: #FF5C7A; }
.field.invalid .f-label { color: #FF8AA0; }
.chips { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips > .f-label { flex-basis: 100%; margin-bottom: 2px; }
.chips.invalid > .f-label { color: #FF8AA0; }
.chips.invalid label > span { border-color: rgba(255, 92, 122, .5); }
.chips label { position: relative; cursor: pointer; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips label > span { display: inline-flex; align-items: center; height: 40px; padding: 0 16px; border-radius: 999px; font-size: 14.5px; border: 1px solid var(--dline); color: var(--dim); transition: background .3s, color .3s, border-color .3s; }
.chips label:hover > span { color: var(--paper); border-color: var(--dim-2); }
.chips input:checked + span { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.chips input:focus-visible + span { outline: 2px solid var(--blue-2); outline-offset: 2px; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { text-align: center; font-size: 14.5px; color: var(--dim); min-height: 1.4em; }
.form-status.err { color: #FF8AA0; }
.form-done { display: grid; justify-items: center; text-align: center; gap: 14px; padding: 48px 10px; outline: none; }
.form-done[hidden] { display: none; }
.done-mark { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; background: var(--blue); color: #fff; font-size: 28px; }
.form-done h3 { font-size: 34px; font-weight: 400; letter-spacing: -.045em; }
.form-done p { color: var(--dim); }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink); color: var(--paper); padding: 20px 0 30px; overflow: hidden; border-top: 1px solid var(--dline); }
.footer-mark { font-weight: 400; font-size: clamp(110px, 25vw, 420px); letter-spacing: -.075em; line-height: .8; margin: 30px 0 0 -.05em; padding-bottom: .1em; }

.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding: 36px 0 44px; border-top: 1px solid var(--dline); margin-top: 20px; }
.footer-cols small { display: block; font-family: var(--label); font-weight: 600; font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--dim-2); margin-bottom: 10px; }
html.lang-zh .footer-cols small { letter-spacing: .14em; }
.footer-cols p { color: var(--dim); font-size: 15px; }
.footer-cols a { color: var(--paper); transition: color .3s; }
.footer-cols a:hover { color: var(--blue-2); }
.footer-row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 20px; border-top: 1px solid var(--dline); color: var(--dim-2); font-size: 14px; }

.dock { display: none; }
.toast { position: fixed; left: 50%; bottom: 100px; z-index: 300; transform: translate(-50%, 16px); background: var(--paper); color: var(--ink); padding: 10px 20px; border-radius: 999px; font-size: 15px; opacity: 0; pointer-events: none; transition: opacity .3s, transform .5s var(--ease); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 960px) {
  .nav { padding: 18px var(--gut); }
  .nav-links, .nav-cta { display: none; }
  .nav-end { margin-left: auto; gap: 18px; }
  .burger { display: block; }
  .card-head { grid-template-columns: auto 1fr; }
  .card-meta { grid-column: 1 / -1; text-align: left; }
  .card-stage { aspect-ratio: 4 / 4; }
  .dev-d { left: 5%; top: 6%; width: 90%; }
  .dev-p { width: 38%; right: 5%; top: 38%; }
  .rs { height: auto; }
  .rs-pin { position: relative; height: auto; padding: 110px 0; }
  .rs-grid { grid-template-columns: 1fr; }
  .paper-mask { width: 92%; }
  .ps-grid { grid-template-columns: 1fr; }
  .ps-pin { padding: 110px 0; min-height: 0; }
  .qx { height: 340vh; }
  .qx-in { padding-top: 84px; padding-bottom: 96px; }
  .qs-n { font-size: 46vw; top: 18%; transform: none; }
  .qs-q { font-size: clamp(36px, 10vw, 56px); }
  html.lang-zh .qs-q { font-size: clamp(30px, 8.4vw, 46px); }
  .qs-usual, .qs-ours { grid-template-columns: 1fr; gap: 6px; }
  .qs-strike { font-size: 17px; }
  .qs-ours b { font-size: clamp(26px, 7.4vw, 36px); }
  html.lang-zh .qs-ours b { font-size: clamp(24px, 6.6vw, 32px); }
  .qx-hint { display: none; }
  .inc-grid, .faq-grid, .start-grid, .pv-grid, .ab-grid { grid-template-columns: 1fr; }
  .pv-zero { grid-template-columns: 1fr; }
  .pv-shot { padding: 0 0 50px 0; }
  .pv-ref { left: 12px; }
  .pv-win { transform: none; }
  .ab-photo { aspect-ratio: 16 / 11; max-height: 420px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .hero-poster { width: 108vw; right: -14vw; top: auto; bottom: 4vh; transform: none; }
  .faq-grid > div:first-child { position: static; }
  .dfacts { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .footer { padding-bottom: calc(110px + env(safe-area-inset-bottom)); }
  .hero { height: 180vh; }
  .hero-copy { top: 92px; transform: none; width: auto; right: var(--gut); }
  .hero-h1 { font-size: 40px; margin-top: 14px; }
  html.lang-zh .hero-h1 { font-size: 34px; }
  .hero-price { margin-top: 12px; }
  .hero-price b { font-size: 56px; }
  .hero-sub { display: none; }
  .hero-btns { margin-top: 18px; gap: 18px; }
  .hero-btns .btn { height: 50px; padding: 0 22px; font-size: 15.5px; }
  .hero-foot .hero-count span { display: none; }
  .rows li { grid-template-columns: 38px 1fr; }
  .r-d { grid-column: 2; text-align: left; font-size: 14px; }
  .flow { padding: 16px 10px; }
  .flow li { font-size: 11.5px; }
  .row-2 { grid-template-columns: 1fr; }
  .ab-points li { grid-template-columns: 1fr; gap: 4px; }
  .footer-cols { grid-template-columns: 1fr; gap: 22px; }
  .pv-zero li { padding: 22px; }
  .months { gap: 6px; }
  .mo span { left: 4px; top: 2px; font-size: 9px; }
  .dock {
    display: flex; align-items: center; justify-content: space-between; gap: 12px; position: fixed; z-index: 80;
    left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); padding: 8px 8px 8px 20px; border-radius: 999px;
    background: var(--ink); color: var(--paper); box-shadow: inset 0 0 0 1px var(--dline), 0 20px 40px -14px rgba(0, 0, 0, .5);
    transform: translateY(calc(100% + 30px)); transition: transform .6s var(--ease);
  }
  .dock.show { transform: none; }
  .dock-price { font-size: 22px; font-weight: 400; letter-spacing: -.05em; }
  .dock-price small { font-size: 12.5px; color: var(--dim); letter-spacing: 0; }
  .dock-btn { height: 44px; padding: 0 20px; border-radius: 999px; display: inline-flex; align-items: center; background: var(--blue); color: #fff; font-weight: 500; font-size: 15px; }
}

/* 申请区标题别太大，免得 Let's 单独一行 */
.start-copy .title.big { font-size: clamp(48px, 5.4vw, 92px); }
html.lang-zh .start-copy .title.big { font-size: clamp(40px, 4.6vw, 76px); }

/* =========================================================
   条款 / 隐私页
   ========================================================= */
.doc-page .doc-nav { position: absolute; mix-blend-mode: normal; color: var(--ink); }
.doc-page .nav-end { margin-left: auto; }
.doc { max-width: 860px; padding-top: 150px; padding-bottom: 120px; }
.doc-k { color: var(--blue); }
.doc-title { margin-top: 18px; font-weight: 400; font-size: clamp(52px, 7vw, 104px); line-height: .95; letter-spacing: -.055em; }
.doc-title em { font-family: var(--serif); font-style: italic; color: var(--blue); letter-spacing: -.02em; }
html.lang-zh .doc-title { font-weight: 500; letter-spacing: -.02em; line-height: 1.15; }
html.lang-zh .doc-title em { font-family: var(--sans); font-style: normal; }
.doc-date { margin-top: 18px; color: var(--muted); font-size: 14.5px; }
.doc-body { margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--line); }
.doc-lead { font-size: clamp(19px, 1.6vw, 23px); letter-spacing: -.02em; line-height: 1.5; margin-bottom: 18px; }
.doc-body h2 { font-weight: 500; font-size: 22px; letter-spacing: -.03em; margin: 44px 0 12px; }
html.lang-zh .doc-body h2 { letter-spacing: 0; }
.doc-body p, .doc-body li { color: #33353B; }
.doc-body ul { display: grid; gap: 10px; }
.doc-body li { position: relative; padding-left: 22px; }
.doc-body li::before { content: ""; position: absolute; left: 2px; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.doc-body ul + p, .doc-body p + p { margin-top: 12px; }
.doc-body b { font-weight: 500; color: var(--ink); }
.doc-mail { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.doc-note { margin-top: 40px !important; font-size: 14px; color: var(--muted) !important; }
.doc-foot { padding: 26px 0 30px; }
.doc-foot .footer-row { border-top: 0; padding-top: 0; }
.doc-foot a:hover { color: var(--paper); }
@media (max-width: 960px) { .doc-page .nav-cta { display: inline; } .doc { padding-top: 120px; } }

/* 作品卡片上的“打开看看”链接 */
.card-live { display: inline-block; margin-left: 10px; padding: 2px 10px; border-radius: 99px; box-shadow: inset 0 0 0 1px currentColor; color: var(--paper); white-space: nowrap; transition: background .3s, color .3s; }
.card-live:hover { background: var(--paper); color: var(--ink); }

/* 作品区提示：电脑显示“鼠标移上去”，触屏显示“会自动翻页” */
.t-touch { display: none; }
@media (pointer: coarse) { .t-hover { display: none; } .t-touch { display: inline; } }

/* 常见问题：默认只显示最常问的 6 个 */
.faq:not(.all) .qa-more { display: none; }
.faq:not(.all) .qa:has(+ .faq-group), .faq:not(.all) .qa:has(+ .qa-more + .faq-group), .faq:not(.all) .qa:has(+ .qa-more + .qa-more + .faq-group) { border-bottom: 1px solid var(--line); }
.faq-all { display: inline-flex; align-items: center; gap: 12px; margin-top: 30px; height: 50px; padding: 0 22px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--line); font-weight: 500; transition: background .3s, color .3s; }
.faq-all:hover { background: var(--ink); color: #fff; }
.faq-all i { width: 12px; height: 12px; position: relative; }
.faq-all i::before, .faq-all i::after { content: ""; position: absolute; left: 0; right: 0; top: 5.25px; height: 1.5px; background: currentColor; }
.faq-all i::after { transform: rotate(90deg); }
.faq.all .faq-all { display: none; }

/* 关于：工作室名片（以后有照片了可以换成照片） */
.ab-photo { place-items: stretch; }
.ab-card { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(26px, 3vw, 44px); color: #fff; }
.ab-logo { font-weight: 500; font-size: clamp(48px, 5vw, 80px); letter-spacing: -.06em; line-height: 1; }
.ab-logo .dot { background: #fff; }
.ab-card dl { display: grid; margin: 0; }
.ab-card dl > div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid rgba(255, 255, 255, .22); }
.ab-card dt { color: rgba(255, 255, 255, .66); font-size: 14.5px; }
.ab-card dd { margin: 0; font-weight: 500; text-align: right; }
@media (max-width: 960px) { .ab-photo { aspect-ratio: auto; max-height: none; } .ab-card { gap: 40px; } }