:root {
  --ink: #241f1b;
  --muted: #706760;
  --paper: #fffdfa;
  --sand: #f6efe7;
  --peach: #ef9b79;
  --coral: #db6f59;
  --wine: #7b3f3b;
  --line: rgba(77, 57, 45, 0.14);
  --shadow: 0 24px 70px rgba(72, 47, 35, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--sand);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 15%, rgba(239, 155, 121, 0.2), transparent 28rem),
    radial-gradient(circle at 90% 80%, rgba(123, 63, 59, 0.1), transparent 26rem),
    var(--sand);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

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

button {
  font: inherit;
}

.page-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: "Songti SC", serif;
}

.text-button,
.back-button {
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.text-button:hover,
.back-button:hover {
  color: var(--coral);
}

.screen {
  display: none;
}

.screen.is-active {
  display: block;
  animation: reveal 420ms ease both;
}

.intro-screen.is-active {
  min-height: calc(100vh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  align-items: center;
  gap: 7vw;
  padding: 38px 5vw 90px;
}

.eyebrow,
.card-label,
.question-kicker {
  margin: 0 0 18px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.intro-copy h1,
.result-heading h1 {
  margin: 0;
  font-family: "Songti SC", "STSong", serif;
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.04em;
}

.intro-copy h1 {
  max-width: 700px;
  font-size: clamp(48px, 6vw, 82px);
}

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

.intro-lead {
  max-width: 590px;
  margin: 28px 0 24px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: 13px;
}

.intro-meta span::before {
  content: "·";
  margin-right: 9px;
  color: var(--coral);
  font-weight: 900;
}

.primary-button,
.secondary-button {
  min-height: 54px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  border: 1px solid var(--ink);
  color: white;
  background: var(--ink);
  box-shadow: 0 12px 24px rgba(36, 31, 27, 0.16);
}

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

.primary-button:hover {
  background: var(--wine);
  border-color: var(--wine);
  box-shadow: 0 16px 34px rgba(123, 63, 59, 0.22);
}

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

.privacy-note,
.keyboard-hint,
.disclaimer {
  color: var(--muted);
  font-size: 12px;
}

.privacy-note {
  margin: 16px 0 0;
}

.intro-art {
  position: relative;
  min-height: 500px;
  display: grid;
  place-items: center;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(123, 63, 59, 0.25);
  border-radius: 50%;
}

.orbit-one {
  width: 410px;
  height: 410px;
}

.orbit-two {
  width: 310px;
  height: 460px;
  transform: rotate(48deg);
}

.heart-card {
  position: relative;
  width: 290px;
  height: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 145px 145px 28px 28px;
  background: linear-gradient(155deg, rgba(255, 253, 250, 0.95), rgba(239, 155, 121, 0.42));
  box-shadow: var(--shadow);
  transform: rotate(3deg);
}

.heart-small {
  position: absolute;
  top: 58px;
  right: 55px;
  color: var(--wine);
  font-size: 44px;
}

.heart-large {
  color: var(--coral);
  font-family: Georgia, serif;
  font-size: 126px;
  line-height: 1;
  text-shadow: 12px 16px 0 rgba(255, 255, 255, 0.56);
}

.heart-card p {
  margin: 18px 0 0;
  color: var(--wine);
  font-family: "Songti SC", serif;
  font-size: 17px;
  line-height: 1.65;
  text-align: center;
  letter-spacing: 0.16em;
}

.quiz-screen.is-active {
  width: min(820px, 100%);
  margin: 26px auto 90px;
}

.quiz-topline {
  display: flex;
  align-items: center;
  gap: 18px;
}

.back-button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 18px;
}

.back-button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.progress-copy {
  flex: 1;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.progress-track {
  height: 4px;
  margin: 15px 0 36px 56px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(123, 63, 59, 0.12);
}

.progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--peach), var(--coral));
  transition: width 360ms ease;
}

.question-card {
  min-height: 540px;
  padding: clamp(30px, 7vw, 70px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 32px;
  background: rgba(255, 253, 250, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.question-card h2 {
  max-width: 650px;
  margin: 0 0 22px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(28px, 4.2vw, 42px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.025em;
}

.options {
  display: grid;
  gap: 12px;
}

.option-button {
  width: 100%;
  min-height: 64px;
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.option-button:hover,
.option-button:focus-visible,
.option-button.is-selected {
  border-color: var(--coral);
  background: rgba(239, 155, 121, 0.12);
  outline: none;
  transform: translateX(4px);
}

.option-number {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.option-button.is-selected .option-number {
  border-color: var(--coral);
  color: white;
  background: var(--coral);
}

.keyboard-hint {
  margin: 20px 0 0;
  text-align: center;
}

.result-screen.is-active {
  width: min(940px, 100%);
  margin: 20px auto 80px;
}

.result-heading {
  margin: 24px 0 34px;
  text-align: center;
}

.result-heading h1 {
  font-size: clamp(40px, 6vw, 62px);
}

.result-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
}

.score-card,
.insight-card,
.advice-card {
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 28px;
  background: rgba(255, 253, 250, 0.9);
  box-shadow: var(--shadow);
}

.score-card,
.insight-card {
  padding: 42px;
}

.score-card {
  text-align: center;
}

.score-ring {
  --score-angle: 0deg;
  position: relative;
  width: 184px;
  height: 184px;
  display: grid;
  place-items: center;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: conic-gradient(var(--coral) var(--score-angle), rgba(123, 63, 59, 0.1) 0);
}

.score-ring::before {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--paper);
}

.score-ring > div {
  position: relative;
  z-index: 1;
  display: grid;
}

.score-ring strong {
  font-family: Georgia, serif;
  font-size: 56px;
  line-height: 1;
}

.score-ring span {
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
}

.result-level {
  margin: 0 0 12px;
  color: var(--coral);
  font-family: "Songti SC", serif;
  font-size: 26px;
  font-weight: 700;
}

.result-summary,
.insight-card > p:not(.card-label),
.advice-card > p:not(.card-label) {
  color: var(--muted);
  line-height: 1.85;
}

.result-summary {
  margin: 0;
  font-size: 14px;
}

.insight-card h2 {
  margin: 0 0 12px;
  font-family: "Songti SC", serif;
  font-size: 30px;
}

.dimension-list {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.dimension-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.dimension-track {
  height: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(123, 63, 59, 0.1);
}

.dimension-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--peach), var(--coral));
}

.dimension-detail {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.advice-card {
  margin-top: 20px;
  padding: 30px 38px;
}

.advice-card p:last-child {
  margin-bottom: 0;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 30px 0 18px;
}

.result-actions button {
  min-width: 150px;
}

.disclaimer {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  line-height: 1.7;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 20;
  padding: 11px 18px;
  border-radius: 99px;
  color: white;
  background: var(--ink);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: 200ms ease;
}

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

.hidden {
  display: none !important;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 780px) {
  .page-shell {
    width: min(100% - 28px, 680px);
  }

  .site-header {
    height: 70px;
  }

  .intro-screen.is-active {
    min-height: auto;
    display: block;
    padding: 42px 4px 70px;
  }

  .intro-copy h1 {
    font-size: clamp(42px, 13vw, 64px);
  }

  .intro-art {
    min-height: 390px;
    margin-top: 48px;
    transform: scale(0.88);
  }

  .question-card {
    min-height: 510px;
    padding: 34px 24px;
    border-radius: 24px;
  }

  .question-card h2 {
    font-size: 29px;
  }

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

  .score-card,
  .insight-card {
    padding: 32px 24px;
  }
}

@media (max-width: 460px) {
  .brand {
    letter-spacing: 0.02em;
  }

  .intro-meta {
    display: grid;
    gap: 8px;
  }

  .intro-art {
    margin: 22px -34px 0;
    transform: scale(0.75);
  }

  .quiz-screen.is-active {
    margin-top: 10px;
  }

  .progress-track {
    margin-left: 0;
  }

  .question-card h2 {
    margin-bottom: 18px;
    font-size: 26px;
  }

  .keyboard-hint {
    display: none;
  }

  .result-actions {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}