@keyframes i18n-reveal-fallback {
  to {
    visibility: visible;
  }
}

html.i18n-pending body {
  visibility: hidden;
  animation: i18n-reveal-fallback 0s 3s forwards;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0
}

:root {
  --paper: #F7F5F0;
  --paper2: #FAF9F6;
  --card: #FFFFFF;
  --ink: #1A2333;
  --body: #3A4358;
  --mute: #6B7080;
  --line: #E7E3D9;
  --indigo: #2847C4;
  --indigo-d: #1f3aa8;
  --verm: #BA3B1D;
  --jade: #0C7A5F;
  --amber: #B07A0E;
  --serif: Georgia, "Times New Roman", serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --glass: rgba(255, 255, 255, .66);
  --card-t1: #FDFCF7;
  --card-t2: #F7F8FD;
  --card-t3: #FBFAF5;
  --tape: rgba(236, 229, 206, .9);
  --ovbg: rgba(247, 245, 240, .97);
  --chipbg: #FFFFFF;
  --glow1: rgba(40, 71, 196, .06);
  --glow2: rgba(176, 122, 14, .05);
  --glow3: rgba(14, 138, 109, .045)
}

/* 高对比变体 */
@media (prefers-contrast:more) {
  :root {
    --mute: #4A4F5E;
    --line: rgba(26, 35, 51, .4)
  }
}

html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth
}

@media (prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto
  }
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 2px;
  border-radius: 6px
}

@media (prefers-reduced-transparency:reduce),
(prefers-contrast:more) {

  .top,
  .persona,
  .deliver {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
    background: var(--paper) !important
  }
}

body {
  background: var(--paper);
  color: var(--body);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: hidden;
  background-image: radial-gradient(760px 420px at 8% -6%, var(--glow1), transparent 60%), radial-gradient(680px 420px at 98% 4%, var(--glow2), transparent 60%), radial-gradient(720px 460px at 50% 118%, var(--glow3), transparent 62%);
  background-attachment: fixed
}

h1,
h2,
h3,
.serif {
  font-family: var(--serif);
  color: var(--ink);
  letter-spacing: -.01em;
  text-wrap: balance
}

a {
  color: inherit;
  text-decoration: none
}

.eb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--indigo)
}

.ico {
  stroke: currentColor;
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block
}

/* ── top bar ── */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 26px;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid var(--line)
}

.top .lk {
  display: flex;
  align-items: center;
  gap: 12px
}

.top .lk img {
  height: 32px;
  width: auto;
  display: block
}

.top .lk .role {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mute);
  border-left: 1px solid var(--line);
  padding-left: 12px
}

.top .topr {
  display: flex;
  align-items: center;
  gap: 18px
}

.top .signin {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--body);
  background: none;
  box-shadow: none;
  padding: 0 6px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  transition: color .15s
}

.top .signin:hover {
  color: var(--ink)
}

/* compact language dropdown */
.langdd {
  position: relative
}

.langdd-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .02em;
  color: var(--mute);
  background: none;
  border: none;
  padding: 0 8px;
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  line-height: 1;
  transition: color .15s
}

.langdd-btn:hover {
  color: var(--ink)
}

.langdd-btn .chev {
  width: 10px;
  height: 10px;
  transition: transform .18s
}

.langdd.open .langdd-btn .chev {
  transform: rotate(180deg)
}

.langdd-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 148px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 5px;
  box-shadow: 0 18px 44px -18px rgba(26, 35, 51, .35);
  display: none;
  z-index: 70
}

.langdd.open .langdd-menu {
  display: block
}

.langdd-menu [role="option"] {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--body);
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  transition: background .12s, color .12s
}

.langdd-menu [role="option"]:hover {
  background: var(--paper2);
  color: var(--ink)
}

.langdd-menu [role="option"]:active {
  background: var(--line)
}

.langdd-menu [role="option"][aria-selected="true"] {
  color: var(--indigo);
  font-weight: 700
}

.langdd-menu .ck {
  width: 14px;
  height: 14px;
  flex: none;
  opacity: 0;
  color: var(--indigo)
}

.langdd-menu [role="option"][aria-selected="true"] .ck {
  opacity: 1
}

@media(prefers-reduced-motion:reduce) {
  .langdd-btn .chev {
    transition: none
  }
}

html[lang="ja"] body {
  font-family: "Hiragino Sans", "Yu Gothic", system-ui, -apple-system, "Segoe UI", sans-serif
}

html[lang="zh"] body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif
}

html[lang="zh"] {
  --serif: Georgia, "Songti SC", "Noto Serif CJK SC", serif
}

html[lang="ja"] {
  --serif: Georgia, "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif CJK JP", serif
}

/* CJK 排印：方块字关闭负字距；mono 微标签提字号、收字距保可读 */
html[lang="zh"] h1,
html[lang="ja"] h1,
html[lang="zh"] h2,
html[lang="ja"] h2,
html[lang="zh"] h3,
html[lang="ja"] h3,
html[lang="zh"] .serif,
html[lang="ja"] .serif {
  letter-spacing: 0
}

html[lang="zh"] .eb,
html[lang="ja"] .eb {
  font-size: 12px;
  letter-spacing: .12em
}

html[lang="zh"] .persona .on,
html[lang="ja"] .persona .on {
  font-size: 11px;
  letter-spacing: .04em
}

html[lang="zh"] .wcap,
html[lang="ja"] .wcap {
  font-size: 11px;
  letter-spacing: .08em
}

html[lang="zh"] .fhead,
html[lang="ja"] .fhead {
  font-size: 11.5px;
  letter-spacing: .08em
}

.top .userchip {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 12px 5px 5px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--card, #fff);
  transition: box-shadow .15s, transform .15s
}

.top .userchip:hover {
  box-shadow: 0 8px 20px -12px rgba(40, 71, 196, .4);
  transform: translateY(-1px)
}

.top .uc-av {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--indigo);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  overflow: hidden;
  flex: none
}

.top .uc-av img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block
}

.top .uc-name {
  font-size: 13.5px;
  font-weight: 650;
  color: var(--ink);
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap
}

@media(max-width:520px) {
  .top .lk .role {
    display: none
  }

  .top {
    padding: 11px 16px
  }

  .top .uc-name {
    max-width: 96px
  }
}

.wrap {
  max-width: 940px;
  margin: 0 auto;
  padding: 0 24px
}

/* ── hero: meet Maya ── */
.hero {
  padding: 60px 0 26px
}

.hero-in {
  max-width: 680px;
  margin: 0 auto;
  text-align: center
}

.persona {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-align: left;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  backdrop-filter: blur(16px) saturate(1.4);
  border: 1px solid color-mix(in srgb, var(--card) 85%, transparent);
  border-radius: 100px;
  padding: 8px 20px 8px 8px;
  box-shadow: 0 12px 32px -20px rgba(26, 35, 51, .3), inset 0 1px 0 rgba(255, 255, 255, .9);
  margin-bottom: 26px;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s
}

.persona:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px -18px rgba(26, 35, 51, .36), inset 0 1px 0 rgba(255, 255, 255, .9)
}

.persona img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 3px 10px -3px rgba(26, 35, 51, .4)
}

.persona .pn {
  font-size: 16px;
  font-weight: 750;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 9px
}

.persona .on {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .08em;
  font-weight: 600;
  color: var(--jade);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 5px
}

.persona .on:before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jade);
  animation: breathe 2.4s ease-in-out infinite
}

@keyframes breathe {
  0% {
    box-shadow: 0 0 0 0 rgba(14, 138, 109, .4)
  }

  70% {
    box-shadow: 0 0 0 6px rgba(14, 138, 109, 0)
  }

  100% {
    box-shadow: 0 0 0 0 rgba(14, 138, 109, 0)
  }
}

@media(prefers-reduced-motion:reduce) {
  .persona .on:before {
    animation: none;
    box-shadow: 0 0 0 3px rgba(14, 138, 109, .18)
  }
}

.persona .pr {
  font-size: 12.5px;
  color: var(--mute);
  margin-top: 1px
}

h1 {
  font-size: clamp(2.25rem, 5.2vw, 2.75rem);
  line-height: 1.14;
  letter-spacing: -.018em;
  font-weight: 800;
  margin-bottom: 20px;
  text-wrap: balance
}

h1 .hl {
  color: var(--verm)
}

.lead {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--body);
  max-width: 520px;
  margin: 0 auto;
  text-wrap: pretty
}

.lead-cta {
  font-size: 1rem;
  font-weight: 650;
  color: var(--ink);
  margin: 12px auto 0;
  max-width: 520px
}

.lead b {
  color: var(--ink);
  font-weight: 650
}

.engines {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 22px 0 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--mute);
  text-transform: uppercase
}

.engines span {
  background: var(--chipbg);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 4px 12px
}

/* ── the "reply to Maya" form ── */
.formwrap {
  max-width: 560px;
  margin: 34px auto 0;
  position: relative
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 26px 24px;
  box-shadow: 0 18px 44px -28px rgba(26, 35, 51, .28);
  position: relative
}

.fhead {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute)
}

.fhead img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover
}

.q {
  margin-bottom: 18px
}

.q:last-of-type {
  margin-bottom: 0
}

.q label {
  display: block;
  font-size: .9375rem;
  font-weight: 650;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.35
}

.q label .opt {
  display: block;
  color: var(--mute);
  font-weight: 400;
  font-size: .8125rem;
  line-height: 1.45;
  margin: 2px 0 0
}

.q input {
  width: 100%;
  background: #F2EFE8;
  border: 1.5px solid transparent;
  border-radius: 10px;
  padding: 13px 15px;
  color: var(--ink);
  font-size: 1.0625rem;
  font-family: inherit;
  transition: border-color .16s, box-shadow .16s, background .16s
}

.q input::placeholder {
  color: var(--mute);
  opacity: .75
}

.q input.urlgrey {
  color: var(--mute)
}

.q input:focus {
  outline: none;
  background: var(--card);
  border-color: var(--indigo);
  box-shadow: 0 0 0 3.5px rgba(40, 71, 196, .13)
}

@media (prefers-contrast:more) {
  .q input {
    border-color: var(--line)
  }
}

.go {
  width: 100%;
  margin-top: 22px;
  min-height: 52px;
  background: var(--indigo);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 15px;
  font-size: 1rem;
  font-weight: 750;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  transition: transform .12s, box-shadow .2s, background .15s;
  box-shadow: 0 10px 22px -12px rgba(40, 71, 196, .55)
}

.go:hover {
  transform: translateY(-2px);
  background: var(--indigo-d);
  box-shadow: 0 20px 40px -16px var(--indigo)
}

.go:active {
  transform: scale(.98);
  transition: transform .06s
}

.go:disabled {
  opacity: .5;
  cursor: not-allowed;
  transform: none
}

.go svg {
  width: 17px;
  height: 17px
}

.note {
  text-align: center;
  font-size: 12.5px;
  color: var(--mute);
  margin: 16px 0 0;
  font-family: var(--mono);
  letter-spacing: .02em
}

/* ── section frame ── */
.sec {
  padding: 56px 0
}

.sec-h {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 40px
}

.sec-h p {
  text-wrap: pretty;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto
}

.sec-h .eb {
  display: block;
  margin-bottom: 14px
}

.sec-h h2 {
  font-size: clamp(1.625rem, 3.6vw, 2rem);
  line-height: 1.21;
  font-weight: 800;
  margin-bottom: 12px;
  text-wrap: balance
}

.sec-h p {
  font-size: 15.5px;
  color: var(--mute)
}

/* ── Maya's skills = her hands ── */
.hands {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 760px;
  margin: 0 auto
}

.hand {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px 22px 20px;
  box-shadow: 0 14px 40px -26px rgba(26, 35, 51, .25);
  transition: transform .16s, box-shadow .16s
}

.hand:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 48px -26px rgba(26, 35, 51, .35)
}

.hand .hi {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px
}

.hand .hi svg {
  width: 22px;
  height: 22px
}

.hand h3 {
  font-family: system-ui, sans-serif;
  font-size: 16.5px;
  font-weight: 750;
  color: var(--ink);
  margin-bottom: 6px
}

.hand p {
  font-size: .875rem;
  color: var(--body);
  line-height: 1.55
}

.hand .hi.i1 {
  background: rgba(40, 71, 196, .1);
  color: var(--indigo)
}

.hand .hi.i2 {
  background: rgba(186, 59, 29, .09);
  color: var(--verm)
}

.hand .hi.i3 {
  background: rgba(14, 138, 109, .1);
  color: var(--jade)
}

.hand .hi.i4 {
  background: rgba(176, 122, 14, .1);
  color: var(--amber)
}

/* ── how it works ── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  max-width: 1060px;
  margin: 76px auto 0
}

.stp {
  text-align: center;
  position: relative
}

.stp .num {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 700;
  color: var(--indigo);
  line-height: 1;
  margin-bottom: 12px
}

.stp h3 {
  font-family: system-ui, sans-serif;
  font-size: 16px;
  font-weight: 750;
  color: var(--ink);
  margin-bottom: 6px
}

.stp p {
  font-size: 13.5px;
  color: var(--mute);
  line-height: 1.55;
  max-width: 220px;
  margin: 0 auto
}

/* ── what she hands you (deliverable) ── */
.deliver {
  max-width: 720px;
  margin: 0 auto;
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  border: 1px solid color-mix(in srgb, var(--card) 85%, transparent);
  border-radius: 20px;
  padding: 30px 32px;
  box-shadow: 0 24px 60px -32px rgba(26, 35, 51, .32), inset 0 1px 0 rgba(255, 255, 255, .9);
  position: relative
}

.deliver .spine {
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 4px;
  border-radius: 4px;
  background: var(--indigo)
}

.deliver .dh {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 18px
}

.deliver .dh img {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover
}

.deliver .dh .t {
  font-size: 12px;
  color: var(--mute)
}

.deliver .dh .t b {
  color: var(--ink);
  font-weight: 700
}

.deliver .dstamp {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mute)
}

.dgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px 26px
}

.dgrid .di {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--body)
}

.dgrid .di:before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: color-mix(in srgb, var(--indigo) 22%, transparent);
  border: 1.5px solid var(--indigo)
}

.dgrid .di b {
  color: var(--ink);
  font-weight: 650
}

.wall {
  display: flex;
  gap: 27px;
  align-items: flex-start;
  max-width: 980px;
  margin: 0 auto
}

.wall .wcol {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 27px;
  min-width: 0
}

.wcard {
  position: relative;
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line, #E5E2D9);
  border-radius: 12px;
  padding: 20px 20px 17px;
  box-shadow: 0 12px 26px -20px rgba(26, 35, 51, .4);
  transition: box-shadow .25s ease;
  text-decoration: none;
  color: inherit
}

.wcard:nth-child(4n+1) {
  transform: rotate(-.9deg)
}

.wcard:nth-child(4n+2) {
  transform: rotate(.75deg) translateY(3px)
}

.wcard:nth-child(4n+3) {
  transform: rotate(-.45deg) translateY(-2px)
}

.wcard:nth-child(4n) {
  transform: rotate(1.05deg)
}

.wcard:hover {
  box-shadow: 0 20px 44px -22px rgba(26, 35, 51, .45)
}

.wcard.t1 {
  background: var(--card-t1)
}

.wcard.t2 {
  background: var(--card-t2)
}

.wcard.t3 {
  background: var(--card-t3)
}

.wcard.tape:before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%) rotate(-2.5deg);
  width: 76px;
  height: 21px;
  background: var(--tape);
  border: 1px solid rgba(26, 35, 51, .06);
  border-radius: 2px;
  box-shadow: 0 1px 2px rgba(26, 35, 51, .06)
}

.wcard.pin:before {
  content: "";
  position: absolute;
  top: -7px;
  left: 24px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #E2694B, #B23A1C);
  box-shadow: 0 2px 4px rgba(26, 35, 51, .3)
}

.wq {
  font-size: .9375rem;
  line-height: 1.55;
  color: var(--ink, #1A2333);
  margin: 0 0 13px
}

.wq:before {
  content: "\201C";
  font-family: Georgia, serif;
  font-size: 36px;
  line-height: 1;
  color: var(--indigo, #2847C4);
  opacity: .28;
  display: block;
  height: 20px;
  margin: -4px 0 2px
}

.wcard.big .wq {
  font-size: 16px;
  line-height: 1.6
}

.wwho {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  color: var(--mute, #8A8F9E);
  font-weight: 600
}

.wav {
  width: 27px;
  height: 27px;
  border-radius: 50%;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex: none
}

.wcap {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mute);
  display: block;
  margin-bottom: 3px
}

.wstat {
  font-family: Georgia, serif;
  font-size: 46px;
  font-weight: 900;
  line-height: 1;
  display: block;
  margin: 0 0 7px
}

.wstat em {
  font-size: 19px;
  font-weight: 700;
  font-style: normal;
  color: var(--mute);
  letter-spacing: 0
}

.wsb {
  font-size: 13px;
  font-weight: 750;
  color: var(--ink, #1A2333);
  display: block;
  margin-bottom: 5px
}

.wsp {
  font-size: 13px;
  line-height: 1.55;
  color: var(--mute, #8A8F9E);
  margin: 0 0 11px
}

.wlink {
  font-size: 12px;
  font-weight: 650;
  color: var(--indigo, #2847C4);
  display: inline-flex;
  align-items: center;
  min-height: 32px
}

.wnote {
  text-align: center;
  font-size: 12px;
  color: var(--mute, #8A8F9E);
  margin-top: 20px
}

.hunder {
  position: relative;
  display: inline-block
}

.hunder svg {
  position: absolute;
  left: -2%;
  bottom: -7px;
  width: 104%;
  height: 11px;
  pointer-events: none
}

@media(max-width:900px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px
  }
}

@media(max-width:700px) {
  .wall {
    display: block
  }

  .wall .wcol {
    display: contents
  }

  .wcard {
    margin: 0 0 27px
  }

  .wcard,
  .wcard:nth-child(n) {
    transform: none
  }
}

@media(max-width:640px) {
  .hands {
    grid-template-columns: 1fr
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 30px
  }

  .dgrid {
    grid-template-columns: 1fr
  }
}

/* ── closing CTA ── */
.close {
  text-align: center;
  padding: 60px 0 20px
}

.close h2 {
  font-size: clamp(1.625rem, 3.6vw, 2rem);
  font-weight: 800;
  margin-bottom: 14px
}

.close p {
  font-size: 15.5px;
  color: var(--mute);
  max-width: 480px;
  margin: 0 auto 26px
}

.close .go2 {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--indigo);
  color: #fff;
  border-radius: 12px;
  padding: 15px 28px;
  font-size: 16px;
  font-weight: 750;
  box-shadow: 0 16px 34px -16px var(--indigo);
  transition: transform .15s, background .15s;
  cursor: pointer;
  border: none;
  font-family: inherit
}

.close .go2:hover {
  transform: translateY(-2px);
  background: var(--indigo-d)
}

.close .go2:active {
  transform: scale(.98);
  transition: transform .06s
}

.close .go2 img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, .5)
}

/* ── footer ── */
/* big footer (claude.com style) */
.bigfoot {
  background: #141413;
  color: var(--bf-mute);
  --bf-label: rgba(250, 249, 245, .92);
  --bf-mute: rgba(250, 249, 245, .62);
  --bf-sep: rgba(250, 249, 245, .10);
  --bf-fill: rgba(250, 249, 245, .07);
  margin-top: 40px
}

.bf-in {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(4, 1fr);
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 48px
}

.bf-logo {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.01em;
  margin-bottom: 12px
}

.bf-logo img {
  height: 32px;
  width: auto;
}

.bf-tag {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--bf-mute);
  max-width: 280px;
  margin: 0 0 20px
}

.bf-ask {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bf-fill);
  border: 1px solid var(--bf-sep);
  border-radius: 100px;
  padding: 4px 4px 4px 16px;
  max-width: 320px;
  margin-bottom: 16px
}

.bf-ask input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: rgba(250, 249, 245, .92);
  font-size: 13.5px;
  font-family: inherit;
  padding: 8px 0;
  outline: none
}

.bf-ask input::placeholder {
  color: var(--bf-mute)
}

.bf-ask button {
  flex: none;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: #E2694B;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: filter .15s;
  padding: 0
}

.bf-ask button:hover {
  filter: brightness(.92)
}

.bf-ask button .ico {
  width: 16px;
  height: 16px
}

.bf-mail {
  display: inline-block;
  font-size: 13.5px;
  color: var(--bf-mute);
  transition: color .15s;
  line-height: 2.2;
  padding: 8px 0
}

.bf-mail:hover {
  color: var(--bf-label)
}

.bf-cols {
  display: contents
}

.bf-cols>div {
  display: flex;
  flex-direction: column
}

.bf-cols h4 {
  font-family: inherit;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--bf-mute);
  margin: 0 0 14px
}

.bf-cols a {
  font-size: 13.5px;
  color: var(--bf-mute);
  line-height: 2.2;
  transition: color .15s;
  padding: 8px 0
}

.bf-cols a:hover {
  color: var(--bf-label)
}

.bf-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 12.5px;
  color: var(--bf-mute);
  border-top: 1px solid var(--bf-sep);
  flex-wrap: wrap
}

.bf-social {
  display: flex;
  align-items: center;
  gap: 14px
}

.bf-social a {
  color: var(--bf-mute);
  display: inline-flex;
  transition: color .15s
}

.bf-social a:hover {
  color: var(--bf-label)
}

.bf-social svg {
  width: 16px;
  height: 16px;
  display: block
}

.bf-lang {
  display: flex;
  align-items: center;
  gap: 4px
}

.bf-lang button {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--bf-mute);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color .15s;
  min-height: 36px
}

.bf-lang button:hover,
.bf-lang button.on {
  color: var(--bf-label)
}

.bigfoot a:focus-visible,
.bigfoot button:focus-visible,
.bigfoot input:focus-visible {
  outline: 2px solid rgba(250, 249, 245, .7);
  outline-offset: 2px;
  border-radius: 6px
}

@media(prefers-contrast:more) {
  .bigfoot {
    --bf-sep: rgba(250, 249, 245, .35)
  }

  .bf-cols h4,
  .bf-cols a,
  .bf-mail,
  .bf-tag,
  .bf-bottom,
  .bf-lang button,
  .bf-social a {
    color: #fff
  }

  .bf-lang button.on {
    color: #fff
  }
}

@media(max-width:900px) {
  .bf-in {
    grid-template-columns: 1fr 1fr;
    gap: 36px 28px
  }

  .bf-brand {
    grid-column: 1/-1
  }

  .bf-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    grid-column: 1/-1
  }
}

@media(max-width:600px) {
  .bf-in {
    grid-template-columns: 1fr;
    padding: 56px 20px 36px
  }

  .bf-cols {
    grid-template-columns: 1fr
  }

  .bf-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px 28px
  }
}

.foot {
  border-top: 1px solid var(--line);
  padding: 26px 24px;
  text-align: center;
  font-size: 12.5px;
  color: var(--mute);
  margin-top: 30px
}

.foot .fb {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--ink)
}

.hero-eb {
  display: inline-block;
  margin-bottom: 18px;
  border-bottom: 2px solid var(--indigo);
  padding-bottom: 5px
}

.geoline {
  font-size: 13px;
  color: var(--mute);
  max-width: 460px;
  margin: 16px auto 0;
  line-height: 1.55
}

.geoline b {
  color: var(--body);
  font-weight: 650
}

/* ══ v2 rework: full-screen pages ══ */
:root {
  --toph: 71px
}

.page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  padding: 68px 24px;
  position: relative;
  scroll-margin-top: var(--toph)
}

#p-hero {
  min-height: calc(100svh - var(--toph));
  padding: 28px 24px 64px
}

@supports not (min-height:100svh) {
  #p-hero {
    min-height: calc(100vh - var(--toph))
  }
}

.page>.sec-h {
  margin-bottom: 34px
}

/* hero v4: 居中竖排 slogan → 表单 → 宣传片 */
.hero3 {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: min(1100px, 100%);
  margin: 0 auto
}

.hero3 .persona {
  margin-bottom: 20px
}

.hero3 h1 {
  font-size: clamp(2rem, 3.4vw, 2.55rem);
  margin-bottom: 12px
}

.hero3 .lead-cta {
  margin: 0 0 20px;
  max-width: 560px;
  font-weight: 600
}

.hero3 .card.slim {
  margin-top: 26px
}

.card.slim {
  background: none;
  border: none;
  box-shadow: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  border-radius: 0;
  width: min(460px, 100%)
}

.card.slim input {
  width: 100%;
  min-width: 0;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 100px;
  padding: 14px 22px;
  color: var(--ink);
  font-size: 1rem;
  font-family: inherit;
  box-shadow: 0 10px 26px -20px rgba(26, 35, 51, .35);
  transition: border-color .16s, box-shadow .16s, background .16s
}

.card.slim input::placeholder {
  color: var(--mute);
  opacity: .75
}

.card.slim input:focus {
  outline: none;
  background: var(--card);
  border-color: var(--indigo);
  box-shadow: 0 0 0 3.5px rgba(40, 71, 196, .13)
}

@media(prefers-contrast:more) {
  .card.slim input {
    border-color: var(--ink)
  }
}

.card.slim .go {
  width: auto;
  margin: 0;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 100px;
  font-size: .9375rem;
  background: color-mix(in srgb, var(--indigo) 85%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 24px -14px rgba(40, 71, 196, .5)
}

.card.slim .go:hover {
  background: var(--indigo-d)
}

@media(prefers-reduced-transparency:reduce), (prefers-contrast:more) {
  .card.slim .go {
    background: var(--indigo);
    -webkit-backdrop-filter: none;
    backdrop-filter: none
  }
}

.hero3 .note {
  margin-top: 12px;
  max-width: 520px
}

.stage-frame.hero-vid {
  margin-top: 18px;
  width: min(920px, 100%, max(400px, calc((100svh - 615px)*1.7778)))
}

@media(max-width:640px) {
  .hero3 h1 {
    font-size: clamp(1.9rem, 6vw, 2.3rem)
  }

  .stage-frame.hero-vid {
    width: 100%
  }
}

.scrollcue {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  color: var(--mute);
  opacity: .65;
  animation: cuebob 2.2s ease-in-out infinite;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center
}

.scrollcue svg {
  width: 22px;
  height: 22px
}

@keyframes cuebob {

  0%,
  100% {
    transform: translateX(-50%) translateY(0)
  }

  50% {
    transform: translateX(-50%) translateY(6px)
  }
}

@media(prefers-reduced-motion:reduce) {
  .scrollcue {
    animation: none
  }
}

/* stage: browser-framed film */
.stage-frame {
  width: min(1020px, 100%);
  margin: 0 auto;
  background: #0F1522;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 34px 90px -44px rgba(26, 35, 51, .55);
  overflow: hidden
}

.stage-frame.tut {
  width: min(880px, 100%)
}

.stage-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: #151C2C;
  border-bottom: 1px solid rgba(255, 255, 255, .07)
}

.stage-bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: block
}

.stage-bar .sb-url {
  margin-left: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255, 255, 255, .5);
  background: rgba(255, 255, 255, .07);
  border-radius: 7px;
  padding: 4px 12px;
  letter-spacing: .03em
}

.stage-frame video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  background: #0F1522
}

.stage-cap {
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mute);
  margin-top: 32px;
  text-transform: uppercase
}

#p-how video::-webkit-media-controls-volume-slider,
#p-how video::-webkit-media-controls-mute-button {
  display: none
}

/* pricing carousel */
.caro {
  --cw: 320px;
  width: 100%;
  overflow: hidden;
  padding: 22px 0 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  outline-offset: 4px
}

@media(max-width:720px) {
  .caro {
    --cw: min(84vw, 320px)
  }
}

.caro-vp {
  width: var(--cw)
}

.caro-strip {
  display: flex;
  align-items: stretch;
  transition: transform .75s cubic-bezier(.24, 1.18, .34, 1)
}

.pcard {
  --d: 0;
  --ad: 0;
  flex: 0 0 var(--cw);
  box-sizing: border-box;
  margin: 26px 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 26px 22px;
  box-shadow: 0 22px 54px -30px rgba(26, 35, 51, .38);
  display: flex;
  flex-direction: column;
  position: relative;
  cursor: pointer;
  transform: rotate(calc(var(--d)*4deg)) scale(.8);
  opacity: .75;
  transition: transform .75s cubic-bezier(.24, 1.18, .34, 1), opacity .4s, box-shadow .3s
}

.pcard.on {
  transform: scale(1.045);
  opacity: 1;
  z-index: 2;
  cursor: auto;
  border-color: color-mix(in srgb, var(--indigo) 34%, var(--line));
  box-shadow: 0 30px 70px -32px rgba(40, 71, 196, .4)
}

@media(hover:hover) and (prefers-reduced-motion:no-preference) {
  .caro.fan .pcard {
    transform: rotate(calc(var(--d)*13deg)) translateY(calc(var(--ad)*22px)) scale(.66)
  }

  .caro.fan .pcard.on {
    transform: scale(1.05)
  }
}

.pc-name {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink)
}

.pc-role {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13.5px;
  color: var(--mute);
  margin: 2px 0 14px;
  display: block
}

.pc-price {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 12px
}

.pc-price em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
  font-weight: 400
}

.pc-pitch {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--body);
  margin-bottom: 16px;
  flex: 1
}

.pc-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 750;
  padding: 0 16px;
  border: 1.5px solid var(--indigo);
  color: var(--indigo);
  transition: background .15s, color .15s
}

.pc-cta:hover {
  background: var(--indigo);
  color: #fff
}

.pcard.hot .pc-cta {
  background: var(--indigo);
  color: #fff;
  border-color: var(--indigo)
}

.pcard.hot .pc-cta:hover {
  background: var(--indigo-d)
}

.pc-sub {
  font-size: 11px;
  color: var(--mute);
  text-align: center;
  margin-top: 9px;
  font-family: var(--mono)
}

.pc-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--verm);
  color: #fff;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  border-radius: 100px;
  padding: 4px 12px;
  white-space: nowrap
}

.caro-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 7px 12px;
  box-shadow: 0 10px 26px -18px rgba(26, 35, 51, .4)
}

.caro-nav>button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  background: none;
  border-radius: 50%;
  color: var(--mute);
  cursor: pointer;
  transition: background .12s, color .12s;
  padding: 0;
  font-family: inherit
}

.caro-nav>button:hover {
  background: var(--paper2);
  color: var(--ink)
}

.caro-nav>button svg {
  width: 15px;
  height: 15px
}

.caro-dots {
  display: flex;
  gap: 7px;
  align-items: center
}

.caro-dots button {
  width: 7px;
  height: 7px;
  border-radius: 100px;
  background: var(--line);
  padding: 0;
  border: none;
  cursor: pointer;
  transition: width .3s, background .3s
}

.caro-dots button[aria-current="true"] {
  width: 22px;
  background: var(--indigo)
}

.pr-more {
  text-align: center;
  margin-top: 22px
}

@media(prefers-reduced-motion:reduce) {

  .caro-strip,
  .pcard {
    transition: none
  }
}

/* faq */
.faq {
  width: min(680px, 100%);
  margin: 0 auto
}

.fq {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 12px
}

.fq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  font-weight: 700;
  color: var(--ink);
  font-size: 15px;
  min-height: 44px
}

.fq summary::-webkit-details-marker {
  display: none
}

.fq summary:after {
  content: "+";
  font-family: var(--mono);
  font-size: 19px;
  color: var(--mute);
  transition: transform .18s;
  flex: none
}

.fq[open] summary:after {
  transform: rotate(45deg)
}

.fq .fa {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--body);
  line-height: 1.62
}

@media(prefers-reduced-motion:reduce) {
  .fq summary:after {
    transition: none
  }
}