:root {
  --bg: #ece8df;
  --paper: #f7f3ea;
  --ink: #161210;
  --muted: #6e665f;
  --acid: #ff6b35;
  --acid-2: #ff9e70;
  --lime: #d8ff55;
  --brown: #5e3828;
  --line: rgba(22,18,16,.15);
  --line-strong: rgba(22,18,16,.3);
  --shadow: 0 24px 70px rgba(42,28,21,.14);
  --radius-xl: 36px;
  --radius-lg: 26px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 8%, rgba(255,107,53,.15), transparent 27%),
    radial-gradient(circle at 90% 12%, rgba(216,255,85,.13), transparent 22%),
    var(--bg);
  font-family: "Noto Sans SC", system-ui, sans-serif;
}

button { font: inherit; }

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");
}

.topbar,
footer,
.hero-grid,
.method-card,
.quiz-layout,
.result-intro,
.result-layout,
.secondary-result {
  width: min(1200px, calc(100% - 40px));
  margin-inline: auto;
}

.topbar {
  min-height: 82px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: .04em;
  font-size: 14px;
}

.logo-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 5px rgba(255,107,53,.14);
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 20px;
}

.tested-counter {
  justify-self: center;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid rgba(22,18,16,.13);
  border-radius: 999px;
  background: rgba(247,243,234,.58);
  box-shadow: 0 7px 22px rgba(42,28,21,.06);
  color: var(--muted);
  white-space: nowrap;
  font-size: 12px;
}

.tested-counter strong {
  color: var(--ink);
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 17px;
  line-height: 1;
  letter-spacing: .02em;
}

.tested-counter-label {
  color: var(--ink);
  font-weight: 800;
}

.tested-counter-dot {
  width: 7px;
  height: 7px;
  align-self: center;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 4px rgba(255,107,53,.12);
}

.lab-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 11px;
  letter-spacing: .12em;
}

.lab-status i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #57b84d;
  box-shadow: 0 0 0 4px rgba(87,184,77,.13);
}

.text-button {
  border: 0;
  padding: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

.screen {
  display: none;
  animation: screenIn .45s ease both;
}

.screen.active { display: block; }

@keyframes screenIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-grid {
  min-height: 670px;
  padding: 42px 0 64px;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  align-items: center;
  gap: 64px;
}

.kicker,
.section-index,
.panel-label,
.question-number-label {
  margin: 0;
  color: var(--acid);
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .16em;
}

.hero-copy h1,
.result-intro h1 {
  margin: 20px 0 0;
  font-size: clamp(60px, 7.4vw, 102px);
  line-height: .93;
  letter-spacing: -.065em;
  font-weight: 900;
}

.hero-copy h1 em {
  font-style: normal;
  color: var(--acid);
}

.hero-text {
  max-width: 630px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 34px;
}

.primary-button,
.secondary-button {
  min-height: 54px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.primary-button {
  border: 0;
  color: white;
  background: var(--ink);
  box-shadow: 0 12px 28px rgba(22,18,16,.22);
}

.primary-button span { margin-left: 18px; }

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 17px 32px rgba(22,18,16,.26);
}

.secondary-button {
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: transparent;
}

.secondary-button:hover { background: rgba(255,255,255,.55); }

.duration {
  display: grid;
  gap: 4px;
}

.duration strong { font-size: 14px; }

.duration span {
  color: var(--muted);
  font-size: 12px;
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 42px;
  margin-top: 44px;
}

.hero-metrics div {
  display: grid;
  gap: 3px;
}

.hero-metrics strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 30px;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 12px;
}

.hero-stage {
  position: relative;
  min-height: 570px;
  display: grid;
  place-items: center;
}

.orbit {
  position: absolute;
  border: 1px dashed rgba(22,18,16,.22);
  border-radius: 50%;
}

.orbit-one {
  width: 500px;
  height: 500px;
  animation: rotate 28s linear infinite;
}

.orbit-two {
  width: 390px;
  height: 390px;
  animation: rotateReverse 20s linear infinite;
}

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

.specimen-card {
  position: relative;
  width: min(420px, 88vw);
  aspect-ratio: 4 / 5.1;
  border: 2px solid var(--ink);
  border-radius: 38px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.94), rgba(240,226,207,.9));
  box-shadow: var(--shadow);
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 24px;
  transform: rotate(3deg);
  overflow: hidden;
  z-index: 2;
}

.specimen-card::before {
  content: "";
  position: absolute;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: var(--lime);
  right: -100px;
  top: -80px;
  opacity: .7;
}

.card-label {
  position: relative;
  z-index: 2;
  font-family: "Space Grotesk", sans-serif;
  font-size: 11px;
  letter-spacing: .15em;
}

.cup-illustration {
  position: relative;
  display: grid;
  place-items: center;
}

.cup-body {
  position: relative;
  width: 218px;
  height: 165px;
  border: 3px solid var(--ink);
  border-radius: 18px 18px 76px 76px;
  background: #f8f1e6;
  box-shadow: inset 0 -18px 28px rgba(94,56,40,.11), 0 22px 28px rgba(43,29,22,.18);
  z-index: 2;
}

.coffee-top {
  position: absolute;
  inset: 10px 12px auto;
  height: 62px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: radial-gradient(circle at 38% 35%, #a86642, #562e21 68%, #2e1913);
  display: grid;
  place-items: center;
}

.coffee-top span {
  color: #f4d7c5;
  font-family: "Space Grotesk", sans-serif;
  font-size: 38px;
  font-weight: 700;
}

.cup-handle {
  position: absolute;
  width: 74px;
  height: 78px;
  right: -56px;
  top: 47px;
  border: 16px solid var(--ink);
  border-left-width: 10px;
  border-radius: 50%;
  z-index: -1;
}

.saucer {
  position: absolute;
  width: 290px;
  height: 48px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: #eee3d4;
  bottom: 61px;
}

.steam {
  position: absolute;
  width: 4px;
  height: 90px;
  border-radius: 999px;
  background: linear-gradient(transparent, rgba(22,18,16,.35), transparent);
  top: 42px;
}

.steam-a { left: 46%; transform: rotate(7deg); }
.steam-b { left: 56%; top: 25px; transform: rotate(-8deg); }

.specimen-copy {
  display: grid;
  gap: 5px;
  position: relative;
  z-index: 2;
}

.specimen-copy strong { font-size: 20px; }

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

.stamp {
  position: absolute;
  z-index: 4;
  border: 2px solid var(--ink);
  padding: 9px 13px;
  border-radius: 5px;
  background: var(--lime);
  font-weight: 900;
  font-size: 13px;
}

.stamp-a { left: -10px; top: 18%; transform: rotate(-11deg); }
.stamp-b { right: -3px; bottom: 15%; transform: rotate(9deg); background: var(--acid-2); }

.floating-tag {
  position: absolute;
  z-index: 5;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(247,243,234,.92);
  box-shadow: 0 8px 22px rgba(42,28,21,.1);
  font-size: 12px;
  font-weight: 800;
}

.tag-a { top: 4%; right: 8%; }
.tag-b { left: 1%; bottom: 8%; }
.tag-c { right: 4%; bottom: 2%; }

.ticker {
  overflow: hidden;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: var(--lime);
  transform: rotate(-1deg);
}

.ticker-track {
  width: max-content;
  display: flex;
  flex-wrap: nowrap;
  animation: ticker 30s linear infinite;
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
}

.ticker-group {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 12px;
  font-weight: 900;
  white-space: nowrap;
}

.ticker b {
  color: var(--acid);
  flex: 0 0 auto;
}

/*
 * 当前轨道包含 3 组完全相同的内容。
 * 每次只移动总宽度的 1/3，重置后画面与上一帧完全一致，
 * 从而形成真正的首尾无缝循环。
 */
@keyframes ticker {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-33.333333%, 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation-duration: 60s;
  }
}

.method-card {
  margin-top: 92px;
  margin-bottom: 110px;
  padding: 52px;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 60px;
  background: var(--ink);
  color: white;
  border-radius: var(--radius-xl);
}

.method-card h2 {
  margin: 18px 0 0;
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.1;
  letter-spacing: -.045em;
}

.method-list {
  display: grid;
  gap: 24px;
}

.method-list article {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,.16);
}

.method-list article:last-child { border-bottom: 0; }

.method-list > article > span {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--lime);
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
}

.method-list strong { font-size: 17px; }

.method-list p {
  margin: 6px 0 0;
  color: rgba(255,255,255,.62);
  line-height: 1.7;
  font-size: 13px;
}

/* quiz */
.quiz-layout {
  min-height: calc(100vh - 150px);
  padding: 42px 0 90px;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 48px;
}

.quiz-aside {
  padding-top: 8px;
}

.question-counter {
  margin-top: 26px;
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.question-counter strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 64px;
  letter-spacing: -.06em;
}

.question-counter span {
  color: var(--muted);
  font-size: 16px;
}

.vertical-progress {
  width: 4px;
  height: 230px;
  margin: 28px 0 24px;
  background: rgba(22,18,16,.09);
  overflow: hidden;
}

.vertical-progress div {
  width: 100%;
  height: 4%;
  background: var(--acid);
  transition: height .3s ease;
}

.phase-copy {
  width: 150px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.quiz-main { max-width: 870px; }

.quiz-nav {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.quiz-nav > span {
  color: var(--muted);
  font-size: 13px;
}

.circle-button {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 19px;
}

.circle-button:hover { background: white; }

.horizontal-progress {
  height: 6px;
  margin: 18px 0 28px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(22,18,16,.08);
}

.horizontal-progress div {
  height: 100%;
  width: 4%;
  background: var(--acid);
  transition: width .3s ease;
}

.question-panel {
  min-height: 580px;
  padding: clamp(30px, 5vw, 58px);
  border: 2px solid var(--ink);
  border-radius: var(--radius-xl);
  background: rgba(247,243,234,.9);
  box-shadow: var(--shadow);
}

.question-panel h2 {
  max-width: 760px;
  margin: 18px 0 34px;
  font-size: clamp(30px, 4.5vw, 49px);
  line-height: 1.3;
  letter-spacing: -.04em;
}

.answer-list {
  display: grid;
  gap: 13px;
}

.answer-button {
  width: 100%;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.48);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.answer-button.is-selected {
  border-color: var(--accent, #c9a36d);
  background: rgba(201, 163, 109, .12);
}
.answer-button.is-selected .answer-letter {
  background: var(--accent, #c9a36d);
  color: #1b1713;
}
.answer-button:hover {
  transform: translateX(5px);
  border-color: var(--acid);
  background: white;
}

.answer-letter {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-family: "Space Grotesk", sans-serif;
  font-size: 12px;
  font-weight: 700;
}

.answer-copy {
  line-height: 1.55;
  font-weight: 600;
}

.previous-question-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  margin-top: 20px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-weight: 800;
  transition: transform .16s ease, background .16s ease, border-color .16s ease;
}

.previous-question-button:hover {
  transform: translateX(-3px);
  border-color: var(--acid);
  background: rgba(255,255,255,.62);
}

.previous-question-button[hidden] {
  display: none;
}

.quiz-disclaimer {
  margin: 15px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

/* results */
.result-intro {
  padding: 52px 0 36px;
}

.result-intro h1 {
  max-width: 850px;
  font-size: clamp(52px, 7vw, 90px);
}

.result-layout {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  align-items: start;
}

.result-card,
.analysis-panel,
.secondary-result {
  border: 2px solid var(--ink);
  background: rgba(247,243,234,.92);
  box-shadow: var(--shadow);
}

.result-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: clamp(28px, 5vw, 52px);
}

.result-card::after {
  content: "";
  position: absolute;
  width: 290px;
  height: 290px;
  border-radius: 50%;
  background: var(--lime);
  opacity: .32;
  right: -140px;
  top: -120px;
}

.result-card-head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 11px;
  letter-spacing: .14em;
}

.hidden-badge {
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--lime);
  letter-spacing: .06em;
  font-family: "Noto Sans SC", sans-serif;
  font-weight: 800;
}

.result-title-wrap {
  position: relative;
  z-index: 2;
  margin-top: 36px;
  text-align: center;
}

.result-title-wrap p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.result-title-wrap h2 {
  margin: 8px 0 7px;
  font-size: clamp(46px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: -.055em;
}

.result-title-wrap strong {
  color: var(--acid);
  font-size: 16px;
}

.result-art {
  position: relative;
  width: 250px;
  height: 250px;
  margin: 24px auto;
  display: grid;
  place-items: center;
}

.result-emoji {
  width: 160px;
  height: 160px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: linear-gradient(145deg, white, #e9d7c3);
  display: grid;
  place-items: center;
  font-size: 78px;
  box-shadow: 0 20px 35px rgba(42,28,21,.15);
  z-index: 2;
}

.result-orbit {
  position: absolute;
  border: 1px dashed var(--line-strong);
  border-radius: 50%;
}

.result-orbit-a {
  inset: 14px;
  animation: rotate 15s linear infinite;
}

.result-orbit-b {
  inset: 0;
  border-style: solid;
  opacity: .3;
}

.result-description {
  max-width: 680px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.9;
  text-align: center;
}

.result-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 30px;
}

.result-facts > div {
  min-height: 92px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.42);
}

.result-facts span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 11px;
}

.result-facts strong {
  font-size: 14px;
  line-height: 1.55;
}

.result-card blockquote {
  margin: 28px 0 0;
  padding: 20px 22px;
  border-left: 5px solid var(--acid);
  background: var(--ink);
  color: white;
  font-size: 17px;
  line-height: 1.7;
  font-weight: 800;
}

.analysis-panel {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: sticky;
  top: 20px;
}

.panel-block {
  padding: 26px;
  border-bottom: 1px solid var(--line);
}

#radarCanvas {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 14px;
}

.index-list {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.index-list > div {
  display: grid;
  grid-template-columns: 92px 1fr 42px;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}

.index-list strong {
  text-align: right;
  font-family: "Space Grotesk", sans-serif;
}

.index-track {
  height: 9px;
  border-radius: 999px;
  background: rgba(22,18,16,.1);
  overflow: hidden;
}

.index-track i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brown), var(--acid));
  transition: width .8s ease;
}

.result-actions {
  padding: 26px;
  display: grid;
  gap: 10px;
}

.result-actions .primary-button,
.result-actions .secondary-button {
  width: 100%;
}

.underlined {
  margin-top: 7px;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.action-feedback {
  min-height: 22px;
  margin: -15px 26px 18px;
  color: var(--acid);
  text-align: center;
  font-size: 12px;
}

.secondary-result {
  margin-top: 26px;
  margin-bottom: 100px;
  border-radius: var(--radius-lg);
  padding: 34px;
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 44px;
  align-items: center;
}

.secondary-result h3 {
  margin: 13px 0 0;
  font-size: clamp(28px, 3vw, 43px);
  line-height: 1.2;
}

.secondary-result h3 span { color: var(--acid); }

.secondary-result > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

/* mobile poster preview and sharing */
body.modal-open {
  overflow: hidden;
}

.poster-preview-modal[hidden] {
  display: none;
}

.poster-preview-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 22px;
}

.poster-preview-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(22,18,16,.72);
  cursor: pointer;
  backdrop-filter: blur(5px);
}

.poster-preview-dialog {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  max-height: calc(100vh - 44px);
  overflow: auto;
  padding: 26px;
  border: 2px solid var(--ink);
  border-radius: 28px;
  background: var(--paper);
  box-shadow: 0 32px 90px rgba(0,0,0,.34);
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.poster-preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.poster-preview-head h2 {
  margin: 8px 0 0;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.15;
  letter-spacing: -.035em;
}

.poster-preview-close {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 26px;
  line-height: 1;
}

.poster-preview-close:hover {
  background: white;
}

.wechat-share-hint {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(255,107,53,.32);
  border-radius: 14px;
  background: rgba(255,107,53,.1);
}

.wechat-share-hint strong,
.wechat-share-hint span {
  display: block;
}

.wechat-share-hint strong {
  margin-bottom: 4px;
  color: var(--acid);
}

.wechat-share-hint span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.poster-preview-hint {
  margin: 16px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.poster-preview-image-wrap {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ded8cd;
}

.poster-preview-image-wrap img {
  display: block;
  width: 100%;
  height: auto;
  -webkit-touch-callout: default;
  user-select: auto;
}

.poster-preview-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.poster-preview-actions .primary-button {
  grid-column: 1 / -1;
}

.poster-preview-actions button {
  width: 100%;
}

.poster-preview-feedback {
  min-height: 21px;
  margin: 12px 0 0;
  color: var(--acid);
  text-align: center;
  font-size: 12px;
}

footer {
  min-height: 78px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 11px;
}

@media (max-width: 960px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
  }

  .tested-counter {
    padding-inline: 11px;
  }

  .tested-counter-label {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .hero-stage { min-height: 540px; }

  .method-card,
  .result-layout {
    grid-template-columns: 1fr;
  }

  .analysis-panel { position: static; }

  .quiz-layout {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .quiz-aside {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .question-counter { margin-top: 10px; }

  .question-counter strong { font-size: 42px; }

  .vertical-progress,
  .phase-copy { display: none; }
}

@media (max-width: 680px) {
  .topbar,
  footer,
  .hero-grid,
  .method-card,
  .quiz-layout,
  .result-intro,
  .result-layout,
  .secondary-result {
    width: min(100% - 24px, 1200px);
  }

  .topbar {
    min-height: 68px;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .logo { font-size: 12px; }

  .tested-counter {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: center;
    min-height: 32px;
    margin-top: -5px;
    margin-bottom: 8px;
    padding: 6px 11px;
  }

  .tested-counter-label {
    display: inline;
  }

  .tested-counter strong {
    font-size: 15px;
  }

  .topbar-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .lab-status { display: none; }

  .hero-grid {
    padding-top: 34px;
    min-height: auto;
  }

  .hero-copy h1 { font-size: 58px; }

  .hero-text { font-size: 16px; }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-metrics { gap: 24px; }

  .hero-stage { min-height: 440px; }

  .specimen-card { width: 320px; }

  .orbit-one { width: 360px; height: 360px; }
  .orbit-two { width: 290px; height: 290px; }

  .cup-body { transform: scale(.78); }
  .saucer { transform: scale(.78); }

  .stamp { font-size: 10px; }
  .stamp-a { left: -2px; }
  .stamp-b { right: -3px; }

  .floating-tag { font-size: 10px; }

  .method-card {
    margin-top: 70px;
    padding: 30px 22px;
    gap: 36px;
  }

  .question-panel {
    min-height: 610px;
    padding: 28px 18px;
    border-radius: 25px;
  }

  .question-panel h2 { font-size: 30px; }

  .answer-button {
    grid-template-columns: 34px 1fr;
    padding: 14px 12px;
    gap: 11px;
  }

  .answer-letter {
    width: 30px;
    height: 30px;
  }

  .answer-copy { font-size: 14px; }

  .previous-question-button {
    width: 100%;
    margin-top: 16px;
  }

  .poster-preview-modal {
    align-items: end;
    padding: 0;
  }

  .poster-preview-dialog {
    width: 100%;
    max-height: 94vh;
    padding: 20px 14px calc(18px + env(safe-area-inset-bottom));
    border-width: 2px 0 0;
    border-radius: 24px 24px 0 0;
  }

  .poster-preview-actions {
    grid-template-columns: 1fr;
  }

  .poster-preview-actions .primary-button {
    grid-column: auto;
  }

  .result-intro h1 { font-size: 54px; }

  .result-card,
  .analysis-panel { border-radius: 25px; }

  .result-facts { grid-template-columns: 1fr; }

  .secondary-result {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  footer {
    flex-direction: column;
    justify-content: center;
  }
}