:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #eff6ff;
  --text: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-deep: #1d4ed8;
  --primary-soft: #dbeafe;
  --accent: #14b8a6;
  --accent-soft: #ccfbf1;
  --sky: #0284c7;
  --sky-soft: #e0f2fe;
  --navy: #334155;
  --navy-soft: #f1f5f9;
  --border: #e2e8f0;
  --shadow: rgba(37, 99, 235, 0.12);
  --shadow-strong: rgba(15, 23, 42, 0.14);
  --display: "Bahnschrift", "Aptos Display", "PingFang SC", sans-serif;
  --body: "Aptos", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
}

body {
  min-width: 320px;
  color: var(--text);
  background: var(--bg);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.dialog-open {
  overflow: hidden;
}

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

button {
  color: inherit;
  font: inherit;
}

button, a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--primary) 35%, transparent);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 24px;
  top: -60px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--surface);
  background: var(--primary);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 18px;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.ambient__mesh {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 12% 16%, color-mix(in srgb, var(--primary-soft) 76%, transparent) 0, transparent 28%),
    radial-gradient(circle at 88% 34%, color-mix(in srgb, var(--accent-soft) 60%, transparent) 0, transparent 26%),
    radial-gradient(circle at 52% 90%, color-mix(in srgb, var(--primary-soft) 54%, transparent) 0, transparent 28%);
  filter: blur(22px);
  animation: mesh-drift 22s var(--ease) infinite alternate;
}

.ambient__grid {
  position: absolute;
  inset: 0;
  opacity: 0.36;
  background-image:
    linear-gradient(color-mix(in srgb, var(--primary) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--primary) 6%, transparent) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.ambient__spotlight {
  position: absolute;
  width: 520px;
  height: 520px;
  left: calc(var(--pointer-x, 50%) - 260px);
  top: calc(var(--pointer-y, 40%) - 260px);
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--surface) 88%, transparent), transparent 68%);
  opacity: 0.72;
  transition: left 0.18s ease-out, top 0.18s ease-out;
}

@keyframes mesh-drift {
  to { transform: translate3d(3%, -2%, 0) scale(1.04); }
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 5vw, 80px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: height 0.3s var(--ease), border-color 0.3s ease;
}

.site-header.is-compact {
  height: 68px;
  border-color: color-mix(in srgb, var(--border) 75%, transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 19px/1 var(--display);
  letter-spacing: -0.02em;
}

.brand__mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  color: var(--surface);
  background: var(--primary);
  box-shadow: 0 8px 22px var(--shadow);
  font-size: 19px;
}

.brand small {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a {
  position: relative;
  padding: 9px 13px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.06em;
  transition: color 0.25s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
}

.site-nav a.is-active::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
  transition: transform 0.25s ease;
}

.page-rail {
  position: fixed;
  z-index: 80;
  left: clamp(20px, 3vw, 52px);
  top: 50%;
  display: flex;
  align-items: stretch;
  gap: 14px;
  transform: translateY(-50%);
}

.page-rail__line {
  position: relative;
  display: block;
  width: 1px;
  background: var(--border);
}

.page-rail__line span {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: var(--progress, 0%);
  background: var(--primary);
  transition: height 0.45s var(--ease);
}

.page-rail ol {
  display: grid;
  gap: 13px;
  list-style: none;
}

.page-rail a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 22px;
  color: var(--text-muted);
  font-size: 10px;
  transition: color 0.25s ease, transform 0.25s ease;
}

.page-rail a span {
  font: 650 10px/1 var(--display);
}

.page-rail a b {
  max-width: 0;
  overflow: hidden;
  font-weight: 600;
  opacity: 0;
  white-space: nowrap;
  transition: max-width 0.3s var(--ease), opacity 0.25s ease;
}

.page-rail a:hover b,
.page-rail a.is-active b {
  max-width: 50px;
  opacity: 1;
}

.page-rail a.is-active {
  color: var(--primary);
  transform: translateX(3px);
}

.panel {
  position: relative;
  min-height: 100svh;
  scroll-snap-align: start;
  display: grid;
  align-content: center;
  padding: 120px clamp(28px, 10vw, 168px) 72px;
}

.eyebrow {
  color: var(--primary);
  font: 700 11px/1.2 var(--display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-heading {
  margin-bottom: clamp(32px, 6vh, 64px);
}

.section-heading h2,
.contact h2 {
  margin-top: 16px;
  font: 700 clamp(38px, 5vw, 72px)/0.98 var(--display);
  letter-spacing: -0.055em;
}

.section-heading h2 em,
.contact h2 em {
  color: var(--primary);
  font-style: normal;
}

.hero {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  align-items: center;
  gap: clamp(40px, 8vw, 120px);
}

.hero__copy {
  position: relative;
  z-index: 2;
}

.hero__title {
  margin-top: clamp(24px, 3vh, 36px);
  font: 750 clamp(76px, 12vw, 180px)/0.92 var(--display);
  letter-spacing: -0.095em;
}

.hero__title span {
  color: var(--text);
}

.hero__title em {
  color: var(--primary);
  font-style: normal;
}

.hero__statement {
  margin-top: clamp(34px, 6vh, 64px);
  font: 650 clamp(24px, 2.4vw, 38px)/1.2 var(--display);
  letter-spacing: -0.035em;
}

.hero__intro {
  max-width: 570px;
  margin-top: 18px;
  color: var(--text-muted);
  font-size: clamp(15px, 1.2vw, 18px);
  line-height: 1.8;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero__facts span {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  font-size: 11px;
  backdrop-filter: blur(10px);
}

.hero__facts b {
  color: var(--primary-deep);
  font: 700 15px/1 var(--display);
}

.hero__actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: transform 0.25s var(--ease), box-shadow 0.25s ease, border-color 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  color: var(--surface);
  background: var(--primary);
  box-shadow: 0 12px 30px var(--shadow);
}

.button--primary:hover {
  background: var(--primary-deep);
  box-shadow: 0 16px 36px color-mix(in srgb, var(--primary) 22%, transparent);
}

.button--quiet {
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 76%, transparent);
  border-color: var(--border);
}

.button--quiet:hover {
  border-color: color-mix(in srgb, var(--primary) 38%, var(--border));
}

.hero__visual {
  position: relative;
  width: min(35vw, 510px);
  aspect-ratio: 1;
  justify-self: center;
  display: grid;
  place-items: center;
}

.hero__visual::before,
.hero__visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.hero__visual::before {
  inset: 12%;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
  box-shadow: 0 38px 90px var(--shadow), inset 0 0 80px color-mix(in srgb, var(--primary-soft) 40%, transparent);
  backdrop-filter: blur(10px);
}

.hero__visual::after {
  width: 14px;
  height: 14px;
  right: 12%;
  top: 44%;
  background: var(--accent);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 15%, transparent);
}

.hero__monogram {
  position: relative;
  z-index: 2;
  color: var(--primary);
  font: 750 clamp(108px, 14vw, 208px)/1 var(--display);
  letter-spacing: -0.12em;
  transform: translateX(-0.04em);
}

.hero__visual > p {
  position: absolute;
  z-index: 3;
  right: 13%;
  bottom: 24%;
  color: var(--text-muted);
  font: 650 10px/1.4 var(--display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.orbit {
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--primary) 16%, transparent);
  border-radius: 50%;
  animation: orbit-spin 16s linear infinite;
}

.orbit span {
  position: absolute;
  width: 7px;
  height: 7px;
  left: 50%;
  top: -4px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--primary) 12%, transparent);
}

.orbit--outer { inset: 0; }
.orbit--inner { inset: 20%; animation-direction: reverse; animation-duration: 11s; }
.orbit--inner span { background: var(--accent); }

@keyframes orbit-spin { to { transform: rotate(360deg); } }

.visual-note {
  position: absolute;
  z-index: 4;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  box-shadow: 0 10px 30px var(--shadow);
  font: 650 9px/1 var(--display);
  letter-spacing: 0.12em;
  backdrop-filter: blur(10px);
}

.visual-note--top { top: 14%; right: 0; }
.visual-note--bottom { bottom: 14%; left: 0; }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 26px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  transform: translateX(-50%);
}

.scroll-cue i {
  position: relative;
  display: block;
  width: 1px;
  height: 36px;
  overflow: hidden;
  background: var(--border);
}

.scroll-cue i::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1px;
  height: 16px;
  background: var(--primary);
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  from { transform: translateY(-16px); }
  to { transform: translateY(36px); }
}

.about__layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(360px, 1fr);
  gap: clamp(56px, 10vw, 150px);
  align-items: start;
}

.about__intro .lead {
  color: var(--text);
  font: 650 clamp(21px, 2.1vw, 30px)/1.42 var(--display);
  letter-spacing: -0.03em;
}

.about__intro > p:not(.lead) {
  max-width: 590px;
  margin-top: 22px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.85;
}

.principles {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 32px;
}

.principles span {
  padding: 8px 13px;
  border: 1px solid var(--primary-soft);
  border-radius: 999px;
  color: var(--primary-deep);
  background: color-mix(in srgb, var(--surface-soft) 78%, transparent);
  font-size: 12px;
  font-weight: 700;
}

.process-list {
  list-style: none;
  border-top: 1px solid var(--border);
}

.process-list li {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s var(--ease), border-color 0.3s ease;
}

.process-list li:hover {
  padding-left: 10px;
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
}

.process-list li > span {
  color: var(--primary);
  font: 700 11px/1.5 var(--display);
}

.process-list h3 {
  font: 680 17px/1.3 var(--display);
  letter-spacing: -0.02em;
}

.process-list p {
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 13px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.focus-card {
  position: relative;
  min-height: 230px;
  padding: 28px;
  overflow: hidden;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 58%, transparent);
  transition: background 0.35s ease, transform 0.35s var(--ease);
}

.focus-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--primary-soft);
  opacity: 0;
  transform: scale(0.5);
  transition: opacity 0.35s ease, transform 0.45s var(--ease);
}

.focus-card:hover {
  z-index: 2;
  background: var(--surface);
  transform: translateY(-5px);
  box-shadow: 0 20px 50px var(--shadow);
}

.focus-card:hover::after {
  opacity: 0.6;
  transform: scale(1);
}

.focus-card--accent::after { background: var(--accent-soft); }
.focus-card__number { color: var(--text-muted); font: 650 10px/1 var(--display); }

.focus-card__icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin: 28px 0 20px;
  border-radius: 13px;
  color: var(--primary);
  background: var(--surface-soft);
  font: 700 17px/1 var(--display);
}

.focus-card--accent .focus-card__icon {
  color: color-mix(in srgb, var(--accent) 80%, var(--text));
  background: var(--accent-soft);
}

.focus-card h3 {
  font: 680 19px/1.2 var(--display);
  letter-spacing: -0.025em;
}

.focus-card p {
  max-width: 280px;
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.work-card {
  --card-color: var(--primary);
  --card-tint: var(--surface-soft);
  position: relative;
  min-height: 250px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--card-color) 16%, var(--border));
  border-radius: 22px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--card-tint) 66%, var(--surface)), var(--surface) 72%);
  box-shadow: 0 12px 40px color-mix(in srgb, var(--card-color) 7%, transparent);
  transition: transform 0.4s var(--ease), box-shadow 0.4s ease, border-color 0.4s ease;
}

.work-card::before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  right: -70px;
  top: -80px;
  border: 1px solid color-mix(in srgb, var(--card-color) 22%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 28px color-mix(in srgb, var(--card-color) 5%, transparent),
    0 0 0 58px color-mix(in srgb, var(--card-color) 3%, transparent);
  transition: transform 0.5s var(--ease);
}

.work-card:hover,
.work-card:focus-visible {
  border-color: color-mix(in srgb, var(--card-color) 36%, var(--border));
  box-shadow: 0 24px 58px color-mix(in srgb, var(--card-color) 14%, transparent);
  transform: translateY(-7px);
}

.work-card:hover::before { transform: scale(1.08) rotate(12deg); }
.work-card--teal { --card-color: var(--accent); --card-tint: var(--accent-soft); }
.work-card--sky { --card-color: var(--sky); --card-tint: var(--sky-soft); }
.work-card--navy { --card-color: var(--navy); --card-tint: var(--navy-soft); }

.work-card__meta,
.work-card__footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: color-mix(in srgb, var(--card-color) 76%, var(--text));
  font: 700 10px/1 var(--display);
  letter-spacing: 0.13em;
}

.work-card h3 {
  position: relative;
  z-index: 1;
  font: 700 clamp(28px, 3vw, 42px)/1 var(--display);
  letter-spacing: -0.045em;
}

.work-card p {
  position: relative;
  z-index: 1;
  max-width: 480px;
  margin-top: 13px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.work-card__footer > span:last-child {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--card-color) 22%, var(--border));
  border-radius: 50%;
  font-size: 14px;
}

.works__note {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 12px;
  text-align: right;
}

.works__note code {
  color: var(--primary);
  font-family: Consolas, monospace;
}

.contact {
  text-align: center;
}

.contact__content {
  display: grid;
  justify-items: center;
}

.contact__mark {
  width: 108px;
  height: 108px;
  margin-bottom: 28px;
}

.contact h2 {
  margin-top: 18px;
}

.contact__content > p:not(.eyebrow):not(.copy-status) {
  max-width: 520px;
  margin-top: 24px;
  color: var(--text-muted);
  line-height: 1.75;
}

.contact-methods {
  width: min(100%, 640px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.contact-button {
  min-width: 0;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 0 18px 0 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 14px 42px var(--shadow);
  cursor: pointer;
  transition: transform 0.3s var(--ease), border-color 0.3s ease;
}

.contact-button:hover {
  border-color: color-mix(in srgb, var(--primary) 38%, var(--border));
  transform: translateY(-3px);
}

.contact-button span {
  overflow: hidden;
  font: 700 clamp(14px, 3.7vw, 18px)/1 var(--display);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-button b {
  flex: 0 0 auto;
  color: var(--primary);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.wechat-button {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary-soft) 56%, transparent), transparent 70%),
    var(--surface);
}

.copy-status {
  min-height: 20px;
  margin-top: 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.contact__phone {
  margin-top: 18px;
  color: var(--text-muted);
  font: 650 14px/1 var(--display);
  letter-spacing: 0.08em;
  transition: color 0.25s ease;
}

.contact__phone:hover {
  color: var(--primary);
}

.site-footer {
  position: absolute;
  left: clamp(28px, 10vw, 168px);
  right: clamp(28px, 10vw, 168px);
  bottom: 28px;
  display: flex;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.method-dialog,
.wechat-dialog {
  margin: auto;
}

.method-dialog {
  width: min(760px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 26px;
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 95%, transparent);
  box-shadow: 0 30px 100px var(--shadow-strong);
  overflow: hidden;
}

.method-dialog::backdrop {
  background: color-mix(in srgb, var(--text) 34%, transparent);
  backdrop-filter: blur(8px);
}

.method-dialog[open] {
  animation: dialog-in 0.45s var(--ease);
}

@keyframes dialog-in {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
}

.dialog-close {
  position: absolute;
  z-index: 2;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.method-dialog__body {
  padding: clamp(36px, 7vw, 72px);
  background:
    radial-gradient(circle at 100% 0, var(--primary-soft), transparent 34%),
    var(--surface);
}

.method-dialog h2 {
  margin-top: 12px;
  font: 700 clamp(34px, 5vw, 58px)/1 var(--display);
  letter-spacing: -0.05em;
}

.method-flow {
  display: grid;
  grid-template-columns: 1fr 50px 1fr 50px 1fr;
  align-items: center;
  margin-top: 52px;
}

.method-flow div {
  display: grid;
  min-height: 145px;
  align-content: center;
  justify-items: center;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 76%, var(--surface-soft));
  text-align: center;
}

.method-flow div span { color: var(--primary); font: 700 10px/1 var(--display); }
.method-flow div b { margin-top: 16px; font: 700 17px/1 var(--display); }
.method-flow div p { margin-top: 8px; color: var(--text-muted); font-size: 12px; }

.method-flow i {
  height: 1px;
  overflow: hidden;
  background: var(--border);
}

.method-flow i::after {
  content: "";
  display: block;
  width: 50%;
  height: 1px;
  background: var(--primary);
  animation: flow-line 1.7s ease-in-out infinite;
}

@keyframes flow-line {
  from { transform: translateX(-100%); }
  to { transform: translateX(220%); }
}

.method-dialog__note {
  margin-top: 28px;
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}

.wechat-dialog {
  width: min(820px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 26px;
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 30px 100px var(--shadow-strong);
  overflow: hidden;
}

.wechat-dialog::backdrop {
  background: color-mix(in srgb, var(--text) 34%, transparent);
  backdrop-filter: blur(8px);
}

.wechat-dialog[open] {
  animation: dialog-in 0.45s var(--ease);
}

.wechat-dialog__body {
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(300px, 1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 58px);
  padding: clamp(34px, 6vw, 64px);
  background:
    radial-gradient(circle at 0 0, var(--primary-soft), transparent 38%),
    var(--surface);
}

.wechat-dialog__copy h2 {
  margin-top: 12px;
  font: 700 clamp(34px, 5vw, 54px)/1 var(--display);
  letter-spacing: -0.05em;
}

.wechat-dialog__copy > p:last-child {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}

.wechat-dialog__qr {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 20px 54px var(--shadow);
}

.wechat-dialog__qr img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease) var(--delay, 0ms), transform 0.8s var(--ease) var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .page-rail { display: none; }
  .panel { padding-inline: clamp(28px, 7vw, 72px); }
  .hero { gap: 30px; }
  .hero__visual { width: min(40vw, 420px); }
  .site-footer { left: clamp(28px, 7vw, 72px); right: clamp(28px, 7vw, 72px); }
}

@media (max-width: 768px) {
  html { scroll-snap-type: none; }

  .site-header {
    height: 68px;
    padding-inline: 20px;
  }

  .menu-toggle {
    display: block;
    position: relative;
    z-index: 3;
  }

  .menu-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(3) { transform: translateY(-3.5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    inset: 0;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 8px;
    background: color-mix(in srgb, var(--bg) 96%, transparent);
    backdrop-filter: blur(24px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.3s var(--ease);
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 20px;
    font: 700 28px/1.2 var(--display);
    letter-spacing: -0.03em;
  }

  .site-nav a::after { display: none; }

  .panel {
    min-height: auto;
    padding: 110px 22px 84px;
  }

  .hero {
    min-height: 100svh;
    grid-template-columns: 1fr;
    align-content: center;
    padding-top: 90px;
  }

  .hero__title { font-size: clamp(70px, 24vw, 112px); }
  .hero__statement { margin-top: 36px; }
  .hero__intro br { display: none; }
  .hero__facts { gap: 8px; }
  .hero__facts span { flex: 1 1 auto; justify-content: center; }
  .hero__actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }

  .hero__visual {
    position: absolute;
    z-index: 0;
    width: 280px;
    right: -115px;
    top: 100px;
    opacity: 0.34;
  }

  .hero__copy { z-index: 2; }
  .visual-note, .hero__visual > p { display: none; }
  .scroll-cue { display: none; }

  .section-heading h2,
  .contact h2 { font-size: clamp(38px, 13vw, 58px); }

  .about__layout { grid-template-columns: 1fr; gap: 52px; }
  .focus-grid { grid-template-columns: 1fr; }
  .focus-card { min-height: 205px; }
  .works-grid { grid-template-columns: 1fr; }
  .work-card { min-height: 260px; }
  .works__note { text-align: left; }

  .contact {
    min-height: 100svh;
    padding-bottom: 120px;
  }

  .contact-methods {
    grid-template-columns: 1fr;
  }

  .wechat-dialog__body {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 40px 24px 24px;
    text-align: center;
  }

  .wechat-dialog__copy {
    max-width: 390px;
  }

  .wechat-dialog__qr {
    width: min(100%, 390px);
  }

  .site-footer {
    left: 22px;
    right: 22px;
    bottom: 24px;
  }

  .method-flow {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .method-flow i { width: 1px; height: 24px; justify-self: center; }
  .method-flow i::after { width: 1px; height: 50%; animation-name: flow-line-y; }

  @keyframes flow-line-y {
    from { transform: translateY(-100%); }
    to { transform: translateY(220%); }
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}