@import url("assets/fonts/font-faces.css");

:root {
  --font-display: "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --font-body: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --site-width: 1180px;
  --header-height: 72px;
  --radius: 6px;
  --ease: cubic-bezier(.2, .75, .2, 1);
}

body.minimal-mono {
  --bg: #f4f0e7;
  --paper: #fbf8f1;
  --paper-strong: #fffdf8;
  --text: #171717;
  --muted: #5f5f5b;
  --soft: #8b8a84;
  --line: 31, 31, 29;
  --line-alpha: .14;
  --accent: #171717;
  --accent-soft: #d7d3cb;
  --accent-ink: #ffffff;
  --shadow: 22, 22, 20;
  --image-opacity: .2;
}

body.minimal-blue {
  --bg: #eef5fb;
  --paper: #fbfdff;
  --paper-strong: #ffffff;
  --text: #17263a;
  --muted: #607084;
  --soft: #8fa1b8;
  --line: 35, 74, 112;
  --line-alpha: .15;
  --accent: #1e5389;
  --accent-soft: #dbe8f4;
  --accent-ink: #ffffff;
  --shadow: 38, 75, 112;
  --image-opacity: .22;
}

body.minimal-warm {
  --bg: #f6eddf;
  --paper: #fffaf1;
  --paper-strong: #fffdf8;
  --text: #251b16;
  --muted: #715f53;
  --soft: #9b8472;
  --line: 93, 49, 39;
  --line-alpha: .15;
  --accent: #7b1c1f;
  --accent-soft: #eadac8;
  --accent-ink: #fff8ee;
  --shadow: 94, 70, 48;
  --image-opacity: .18;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

[id] {
  scroll-margin-top: calc(var(--header-height) + 28px);
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: clip;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.72;
  background:
    linear-gradient(90deg, rgba(var(--line), .045) 0 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(0deg, rgba(var(--line), .032) 0 1px, transparent 1px) 0 0 / 72px 72px,
    var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: .5;
  background:
    radial-gradient(circle at 14% 12%, rgba(var(--line), .08), transparent 28%),
    radial-gradient(circle at 86% 18%, rgba(var(--line), .05), transparent 24%),
    repeating-linear-gradient(90deg, rgba(var(--line), .035) 0 1px, transparent 1px 8px);
}

body.nav-open {
  overflow: hidden;
}

body,
h1,
h2,
h3,
p,
ul,
ol,
dl,
dd {
  margin: 0;
}

ul,
ol {
  padding: 0;
}

li {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button,
input,
textarea {
  font: inherit;
}

.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;
}

.shell {
  width: min(100% - 64px, var(--site-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid rgba(var(--line), .12);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.brand {
  display: inline-grid;
  grid-template-columns: 44px minmax(0, auto);
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(var(--line), .22);
  border-radius: 2px;
  color: var(--accent-ink);
  background: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0;
}

.brand-copy {
  display: grid;
  line-height: 1.15;
}

.brand-copy strong {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 500;
}

.brand-copy small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  position: relative;
  padding: 10px 12px;
  border-radius: 4px;
  transition: color .2s ease, background .2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-current {
  color: var(--text);
  background: rgba(var(--line), .055);
  outline: none;
}

.menu-toggle {
  width: 42px;
  height: 42px;
  display: none;
  place-items: center;
  gap: 4px;
  padding: 0;
  border: 1px solid rgba(var(--line), .18);
  border-radius: 4px;
  color: var(--text);
  background: var(--paper-strong);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  width: 18px;
  height: 1px;
  background: currentColor;
}

.hero,
.page-hero,
.case-hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - var(--header-height));
  padding: 86px 0;
  display: grid;
  align-items: center;
  border-bottom: 1px solid rgba(var(--line), .12);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 88%, transparent) 38%, rgba(255, 255, 255, .42) 72%, rgba(255, 255, 255, .08) 100%),
    var(--page-image, url("assets/glass/hero.webp")) right center / cover no-repeat;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 0%, var(--bg) 100%),
    linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, .2) 100%);
  opacity: .54;
}

.home-hero {
  --page-image: url("assets/glass/hero.webp");
}

.about-hero {
  --page-image: url("assets/glass/about.webp");
}

.contact-hero {
  --page-image: url("assets/glass/contact.webp");
}

.case-yanxin-page .case-hero {
  --page-image: url("assets/glass/yanxin.webp");
}

.case-mengli-page .case-hero {
  --page-image: url("assets/glass/mengli.webp");
}

.hero-grid,
.page-hero-grid,
.contact-grid,
.case-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(280px, .42fr);
  align-items: end;
  gap: 54px;
}

.page-hero-grid,
.case-hero-grid,
.contact-grid {
  align-items: center;
}

.hero-copy,
.page-copy,
.case-intro {
  position: relative;
  max-width: 760px;
}

.hero-copy::before,
.page-copy::before,
.case-intro::before {
  content: "";
  display: block;
  width: min(62vw, 520px);
  height: 1px;
  margin-bottom: 28px;
  background: linear-gradient(90deg, var(--accent), rgba(var(--line), .08));
}

.eyebrow,
.breadcrumbs,
.case-tag {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.45;
  letter-spacing: 0;
  text-transform: uppercase;
}

.breadcrumbs {
  margin-bottom: 20px;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  margin-top: 12px;
  font-size: clamp(74px, 10.4vw, 150px);
}

.page-copy h1,
.case-intro h1 {
  font-size: clamp(46px, 7.2vw, 94px);
}

.hero-line,
.page-subtitle {
  margin-top: 18px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(27px, 3.3vw, 44px);
  font-weight: 500;
  line-height: 1.24;
  text-wrap: balance;
}

.hero-summary,
.page-copy > p:not(.breadcrumbs):not(.eyebrow):not(.page-subtitle),
.case-intro > p:not(.breadcrumbs):not(.page-subtitle) {
  max-width: 680px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.btn,
.text-link,
.copy-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.2;
  transition: transform .2s var(--ease), border-color .2s ease, background .2s ease, color .2s ease;
}

.btn {
  padding: 11px 16px;
  border: 1px solid rgba(var(--line), .18);
}

.btn:hover,
.text-link:hover,
.copy-chip:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--accent-ink);
  border-color: var(--accent);
  background: var(--accent);
}

.btn-ghost {
  color: var(--text);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
}

.text-link {
  color: var(--accent);
  justify-self: end;
}

.glass-panel,
.glass-card {
  position: relative;
  border: 1px solid rgba(var(--line), var(--line-alpha));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 91%, transparent);
  box-shadow: 0 22px 50px rgba(var(--shadow), .08);
}

.glass-panel::before,
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background:
    linear-gradient(90deg, rgba(var(--line), .06) 0 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(0deg, rgba(var(--line), .035) 0 1px, transparent 1px) 0 0 / 24px 24px;
  opacity: .36;
}

.hero-panel,
.status-panel,
.qr-panel,
.result-panel,
.summary-panel,
.method-aside,
.trust-panel,
.talk-panel {
  padding: 26px;
}

.panel-portrait,
.identity-chip {
  position: relative;
  z-index: 1;
  display: inline-grid;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  max-width: 100%;
  margin: 18px 0 4px;
  padding: 7px 14px 7px 7px;
  border: 1px solid rgba(var(--line), .16);
  border-radius: 4px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--paper-strong) 92%, transparent), color-mix(in srgb, var(--paper) 80%, transparent)),
    var(--paper);
  box-shadow: 0 18px 36px rgba(var(--shadow), .06);
}

.panel-portrait img,
.identity-chip img {
  width: 88px;
  height: 88px;
  object-fit: cover;
  object-position: center 40%;
  border-radius: 3px;
  filter: saturate(.94) contrast(1.02);
}

.panel-portrait figcaption,
.identity-chip div {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.panel-portrait span,
.identity-chip strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.2;
}

.panel-portrait small,
.identity-chip span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.panel-portrait.compact,
.qr-panel .panel-portrait {
  grid-template-columns: 68px minmax(0, 1fr);
  margin: 18px auto 16px;
  text-align: left;
}

.panel-portrait.compact img,
.qr-panel .panel-portrait img {
  width: 68px;
  height: 68px;
}

.case-author-chip {
  margin: 18px 0 0;
  grid-template-columns: 46px minmax(0, 1fr);
  padding: 6px 13px 6px 6px;
}

.case-author-chip img {
  width: 46px;
  height: 46px;
}

.metric-stack {
  display: grid;
  gap: 0;
  margin-top: 18px;
}

.metric-stack > div,
.metric-stack > article {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.metric-stack strong {
  display: block;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 52px);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.metric-stack span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.section {
  padding: 92px 0;
}

.section + .section {
  border-top: 1px solid rgba(var(--line), .08);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, .82fr) auto;
  align-items: end;
  gap: 30px;
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(var(--line), .13);
}

.section-head h2,
.section-copy h2,
.teaser-panel h2,
.talk-panel h2,
.trust-panel h2,
.method-aside h2,
.result-panel h2,
.summary-panel h2,
.case-text h2 {
  font-size: clamp(30px, 4vw, 54px);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-card {
  position: relative;
  min-height: 548px;
  display: grid;
  grid-template-rows: 230px 1fr;
  overflow: hidden;
}

.card-hit {
  position: absolute;
  inset: 0;
  z-index: 4;
}

.case-card:first-child {
  grid-row: auto;
  grid-template-rows: 230px 1fr;
}

.case-media {
  position: relative;
  background: var(--case-image) center / cover no-repeat;
  filter: saturate(.92) contrast(.98);
  border-bottom: 1px solid rgba(var(--line), .12);
}

.case-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--paper) 70%, transparent) 100%);
  opacity: .22;
}

.case-taixi .case-media {
  --case-image: url("assets/glass/taixi.webp");
  background-color: color-mix(in srgb, var(--paper-strong) 82%, var(--accent-soft));
  background-size: contain;
}

.case-yanxin .case-media {
  --case-image: url("assets/glass/yanxin.webp");
}

.case-mengli .case-media {
  --case-image: url("assets/glass/mengli.webp");
}

.case-body {
  position: relative;
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 24px;
}

.case-body h3 {
  font-family: var(--font-body);
  font-size: clamp(29px, 2.1vw, 31px);
  font-weight: 600;
  line-height: 1.18;
  text-wrap: balance;
}

.case-body p,
.section-copy p,
.compact-list p,
.contact-teaser p,
.case-text p,
.case-takeaway span,
.summary-panel dd,
.qr-panel p {
  color: var(--muted);
  font-size: 15px;
  word-break: normal;
  overflow-wrap: break-word;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 2px;
  border-top: 1px solid rgba(var(--line), .12);
}

.case-metrics div {
  padding: 14px 12px 0 0;
  min-width: 0;
}

.case-metrics strong {
  display: block;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
}

.case-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.method-grid,
.about-grid,
.lower-grid,
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(280px, .42fr);
  gap: 34px;
  align-items: start;
}

.section-copy {
  max-width: 650px;
}

.section-copy p {
  margin-top: 18px;
  font-size: 17px;
}

.method-list,
.compact-list {
  display: grid;
  gap: 0;
}

.method-list {
  padding: 8px 24px;
}

.method-list article,
.compact-list article {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.method-list article > strong,
.method-list article > p {
  grid-column: 2;
}

.compact-list article {
  grid-template-columns: 1fr;
}

.method-list span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.method-list strong,
.compact-list strong,
.case-takeaway strong,
.summary-panel dt {
  font-weight: 600;
}

.teaser-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--paper-strong) 94%, transparent), color-mix(in srgb, var(--accent-soft) 26%, var(--paper)));
}

.teaser-panel p {
  margin-top: 10px;
}

.status-panel strong,
.status-panel span {
  display: block;
}

.status-panel strong + span {
  margin-top: 8px;
  color: var(--muted);
}

.status-panel hr {
  margin: 22px 0;
  border: 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.timeline-panel {
  padding: 22px 28px;
}

.story-timeline {
  position: relative;
  display: grid;
}

.story-timeline > li {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px;
  padding: 24px 0;
}

.story-timeline > li::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 16px;
  width: 1px;
  background: rgba(var(--line), .12);
}

.story-timeline > li > span {
  position: relative;
  z-index: 1;
  width: 10px;
  height: 10px;
  margin-top: 11px;
  justify-self: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--paper);
}

.story-timeline > li.is-current > span {
  background: var(--accent);
}

.story-timeline h2 {
  font-family: var(--font-body);
  font-size: 28px;
  font-weight: 600;
  line-height: 1.22;
}

.story-timeline p {
  margin-top: 8px;
  color: var(--muted);
}

.proof-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  color: var(--muted);
}

.proof-list li {
  position: relative;
  display: block;
  width: 100%;
  padding-left: 16px;
  line-height: inherit;
}

.proof-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 6px;
  height: 1px;
  background: var(--accent);
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.case-meta span,
.case-tag {
  display: inline-flex;
  width: fit-content;
  min-height: 28px;
  align-items: center;
  padding: 4px 8px;
  border: 1px solid rgba(var(--line), .13);
  border-radius: 3px;
  color: var(--muted);
  background: color-mix(in srgb, var(--paper) 74%, transparent);
}

.case-takeaway {
  display: grid;
  gap: 0;
  margin-top: 28px;
  padding: 8px 20px;
}

.case-takeaway article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.case-content {
  padding-top: 72px;
}

.content-grid > *,
.case-text,
.summary-panel {
  min-width: 0;
  max-width: 100%;
}

.case-text {
  padding: 32px;
}

.case-text section + section {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid rgba(var(--line), .12);
}

.case-text p {
  margin-top: 14px;
  font-size: 16px;
}

.summary-panel {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.summary-panel dl {
  margin-top: 18px;
}

.summary-panel dl > div {
  padding: 14px 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.contact-rows {
  display: grid;
  gap: 0;
  margin-top: 28px;
  padding: 8px 18px;
}

.contact-rows li {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 13px 0;
  border-top: 1px solid rgba(var(--line), .12);
}

.contact-rows span {
  color: var(--muted);
  font-size: 13px;
}

.copy-chip {
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid rgba(var(--line), .16);
  color: var(--text);
  background: var(--paper-strong);
  cursor: pointer;
}

.qr-frame {
  width: min(100%, 236px);
  margin: 20px auto;
  padding: 14px;
  border: 1px solid rgba(var(--line), .14);
  background: var(--paper-strong);
}

.site-footer {
  border-top: 1px solid rgba(var(--line), .12);
}

.footer-inner {
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 13px;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(var(--line), .18);
  border-radius: 4px;
  color: var(--accent-ink);
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s var(--ease);
}

.back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  z-index: 80;
  min-width: 140px;
  transform: translate(-50%, 10px);
  padding: 10px 14px;
  border-radius: 4px;
  color: var(--accent-ink);
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s var(--ease);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.reveal-pending {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease var(--reveal-delay, 0ms), transform .6s var(--ease) var(--reveal-delay, 0ms);
}

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

@media (max-width: 1060px) {
  .hero-grid,
  .page-hero-grid,
  .contact-grid,
  .case-hero-grid,
  .method-grid,
  .about-grid,
  .lower-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .case-card,
  .case-card:first-child {
    min-height: auto;
    grid-template-columns: minmax(260px, .42fr) minmax(0, 1fr);
    grid-template-rows: auto;
  }

  .case-media {
    min-height: 100%;
  }

  .summary-panel {
    position: relative;
    top: auto;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 66px;
  }

  .shell {
    width: min(100% - 32px, var(--site-width));
  }

  .header-inner,
  .site-header {
    min-height: var(--header-height);
  }

  .brand {
    grid-template-columns: 38px minmax(0, auto);
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    font-size: 12px;
  }

  .brand-copy strong {
    font-size: 19px;
  }

  .brand-copy small {
    font-size: 11px;
  }

  .menu-toggle {
    display: grid;
  }

  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: calc(var(--header-height) + 10px);
    display: grid;
    gap: 2px;
    padding: 10px;
    border: 1px solid rgba(var(--line), .2);
    border-radius: 6px;
    background: var(--paper-strong);
    box-shadow: 0 28px 72px rgba(var(--shadow), .16);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
  }

  .nav-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .hero,
  .page-hero,
  .case-hero {
    min-height: auto;
    padding: 72px 0 64px;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, var(--bg) 0%, rgba(255, 255, 255, .78) 52%, var(--bg) 100%),
      var(--page-image, url("assets/glass/hero.webp")) center top / cover no-repeat;
    opacity: .9;
  }

  h1 {
    font-size: clamp(54px, 16vw, 78px);
  }

  .page-copy h1,
  .case-intro h1 {
    font-size: clamp(40px, 12vw, 58px);
  }

  .hero-line,
  .page-subtitle {
    font-size: clamp(25px, 7vw, 34px);
  }

  .hero-summary,
  .page-copy > p:not(.breadcrumbs):not(.eyebrow):not(.page-subtitle),
  .case-intro > p:not(.breadcrumbs):not(.page-subtitle),
  .section-copy p {
    font-size: 16px;
  }

  .section {
    padding: 70px 0;
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .text-link {
    justify-self: start;
  }

  .case-card,
  .case-card:first-child {
    grid-template-columns: 1fr;
    grid-template-rows: 214px auto;
  }

  .case-media {
    min-height: 214px;
  }

  .case-body {
    padding: 20px;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

  .case-metrics div {
    padding-right: 0;
  }

  .metric-stack > div,
  .metric-stack > article {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .panel-portrait,
  .identity-chip {
    grid-template-columns: 62px minmax(0, 1fr);
    margin-top: 16px;
    padding: 6px 11px 6px 6px;
  }

  .panel-portrait img,
  .identity-chip img,
  .panel-portrait.compact img,
  .qr-panel .panel-portrait img {
    width: 62px;
    height: 62px;
  }

  .panel-portrait.compact,
  .qr-panel .panel-portrait {
    grid-template-columns: 62px minmax(0, 1fr);
  }

  .panel-portrait span,
  .identity-chip strong {
    font-size: 16px;
  }

  .teaser-panel {
    display: grid;
    padding: 24px;
  }

  .status-panel,
  .qr-panel,
  .method-aside,
  .result-panel,
  .summary-panel,
  .trust-panel,
  .talk-panel,
  .case-text {
    padding: 22px;
    width: 100%;
  }

  .timeline-panel {
    padding: 8px 22px;
  }

  .story-timeline > li {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 14px;
  }

  .story-timeline > li::before {
    left: 11px;
  }

  .case-takeaway article {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .contact-rows li {
    grid-template-columns: 1fr auto;
    gap: 8px 12px;
  }

  .contact-rows li > span {
    grid-column: 1 / -1;
  }

  .footer-inner {
    min-height: 88px;
    display: grid;
    align-content: center;
  }
}

@media (max-width: 430px) {
  .brand-copy small {
    display: none;
  }

  .hero-actions,
  .btn {
    width: 100%;
  }

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

  .copy-chip {
    width: fit-content;
  }
}