html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-height: 100vh;
  color: #2f261f;
  background:
    radial-gradient(circle at top left, rgba(47, 127, 115, 0.16), transparent 36%),
    radial-gradient(circle at right 18%, rgba(176, 106, 60, 0.15), transparent 28%),
    linear-gradient(180deg, #f9f4eb 0%, #f6efe3 52%, #efe4d3 100%);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

.page-shell {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

.page-shell::before {
  top: -4rem;
  right: -5rem;
  width: 18rem;
  height: 18rem;
  border-radius: 42% 58% 63% 37%;
  background: rgba(47, 127, 115, 0.09);
  filter: blur(8px);
}

.page-shell::after {
  bottom: -7rem;
  left: -5rem;
  width: 19rem;
  height: 19rem;
  border-radius: 61% 39% 47% 53%;
  background: rgba(176, 106, 60, 0.09);
  filter: blur(8px);
}

.page-grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(circle at center, black, transparent 92%);
}

.wrapper {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(1.4rem, 3vw, 2.4rem) 0 4rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #1f5e55;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.hero,
.panel {
  position: relative;
  border: 1px solid rgba(89, 72, 56, 0.16);
  background: rgba(251, 247, 241, 0.84);
  box-shadow: 0 30px 80px -52px rgba(70, 54, 36, 0.42);
  backdrop-filter: blur(8px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(16rem, 0.9fr);
  gap: clamp(1.6rem, 4vw, 3.2rem);
  padding: clamp(1.7rem, 4vw, 3rem);
  border-radius: 2rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(47, 127, 115, 0.1), transparent 36%),
    linear-gradient(0deg, transparent 70%, rgba(255, 255, 255, 0.42));
  pointer-events: none;
}

.hero-copy,
.hero-side {
  position: relative;
  z-index: 1;
}

.hero h1,
.panel-heading h2,
.result-header h2,
.result-empty-title,
.name-value {
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
}

.hero h1 {
  margin: 0;
  max-width: 10em;
  color: #2f261f;
  font-size: clamp(2.5rem, 6vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: 0.03em;
}

.hero-text,
.panel-text,
.hero-note,
.collection-note,
.result-summary,
.result-empty-copy,
.name-source,
.field-tip {
  color: #65594c;
}

.naming-form {
  margin-top: 1.5rem;
}

.hero-text {
  max-width: 34rem;
  margin: 1.2rem 0 0;
  font-size: 1rem;
  line-height: 1.9;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.7);
  border: 1px solid rgba(47, 127, 115, 0.14);
  font-size: 0.9rem;
  color: #2f261f;
}

.hero-side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.2rem;
  padding: clamp(1.2rem, 3vw, 1.6rem);
  border-radius: 1.5rem;
  background: linear-gradient(180deg, rgba(47, 127, 115, 0.08), rgba(255, 253, 248, 0.76));
  border: 1px solid rgba(47, 127, 115, 0.14);
}

.hero-note {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.85;
}

.hero-link,
.btn-go,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.4rem;
  border-radius: 999px;
  border: none;
  text-decoration: none;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  tap-highlight-color: transparent;
}

.hero-link {
  width: fit-content;
  padding: 0 1.25rem;
  color: #1f5e55;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: rgba(255, 253, 248, 0.9);
  border: 1px solid rgba(47, 127, 115, 0.18);
}

.hero-link:hover,
.btn-go:hover {
  transform: translateY(-2px);
}

.hero-link:hover {
  box-shadow: 0 22px 40px -28px rgba(31, 94, 85, 0.34);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(18rem, 22rem) minmax(0, 1fr);
  gap: 1.4rem;
  margin-top: 1.4rem;
}

.panel {
  border-radius: 1.75rem;
  padding: clamp(1.2rem, 3vw, 1.7rem);
}

.panel-heading h2,
.result-header h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3.5vw, 2.2rem);
  line-height: 1.2;
}

.panel-text,
.result-summary,
.collection-note {
  margin: 0.55rem 0 0;
  font-size: 0.94rem;
  line-height: 1.7;
}

.controls-panel.is-loading .collection-note {
  display: block;
}

.book-selector {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.5rem 0;
}

.inputGroup {
  position: relative;
}

.inputGroup input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.inputGroup label {
  display: block;
  min-height: 100%;
  padding: 1rem 1rem 1rem 3.2rem;
  border: 1px solid rgba(89, 72, 56, 0.16);
  border-radius: 1.35rem;
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.96), rgba(245, 237, 224, 0.88));
  box-shadow: 0 14px 30px -26px rgba(91, 69, 35, 0.14);
  color: #2f261f;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  tap-highlight-color: transparent;
}

.inputGroup label::before,
.inputGroup label::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  transition: all 180ms ease;
}

.inputGroup label::before {
  left: 1rem;
  top: 1.12rem;
  width: 1.2rem;
  height: 1.2rem;
  border: 1px solid rgba(47, 127, 115, 0.35);
  background: rgba(255, 253, 248, 0.9);
  box-shadow: inset 0 0 0 0 rgba(47, 127, 115, 0.85);
}

.inputGroup label::after {
  left: 1.37rem;
  top: 1.49rem;
  width: 0.46rem;
  height: 0.46rem;
  background: transparent;
}

.inputGroup label:hover {
  transform: translateY(-2px);
  border-color: rgba(47, 127, 115, 0.28);
  box-shadow: 0 18px 32px -24px rgba(47, 127, 115, 0.28);
}

.inputGroup .option-name {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.inputGroup .option-desc {
  display: block;
  margin-top: 0.38rem;
  color: #65594c;
  font-size: 0.84rem;
  line-height: 1.6;
}

.inputGroup input:focus + label {
  outline: 2px solid rgba(47, 127, 115, 0.18);
  outline-offset: 3px;
}

.inputGroup input:checked + label {
  border-color: rgba(47, 127, 115, 0.55);
  background: linear-gradient(180deg, rgba(233, 245, 241, 0.98), rgba(218, 236, 230, 0.92));
  box-shadow: 0 24px 44px -28px rgba(31, 94, 85, 0.35);
}

.inputGroup input:checked + label::before {
  border-color: transparent;
  box-shadow: inset 0 0 0 0.55rem rgba(47, 127, 115, 0.92);
}

.inputGroup input:checked + label::after {
  background: #fffdf8;
}

.family-field {
  display: block;
  margin-top: 0.2rem;
}

.field-label {
  display: block;
  margin-bottom: 0.7rem;
  color: #2f261f;
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.family-field input {
  width: 100%;
  min-height: 3.4rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid rgba(89, 72, 56, 0.18);
  border-radius: 1rem;
  background: rgba(255, 253, 248, 0.92);
  color: #2f261f;
  font-family: inherit;
  font-size: 1rem;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.family-field input:focus {
  outline: none;
  border-color: rgba(47, 127, 115, 0.45);
  box-shadow: 0 0 0 4px rgba(47, 127, 115, 0.08);
}

.field-tip {
  margin: 0.7rem 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
}

.controls-footer {
  margin-top: 1.3rem;
}

.action-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
}

.btn-go,
.btn-secondary {
  padding: 0.95rem 1.4rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.btn-go {
  width: 100%;
  background: linear-gradient(135deg, #1f5e55, #2f7f73);
  box-shadow: 0 20px 34px -24px rgba(31, 94, 85, 0.72);
  color: #fffdf8;
}

.btn-go:hover {
  box-shadow: 0 24px 38px -22px rgba(31, 94, 85, 0.6);
}

.btn-go:disabled {
  cursor: progress;
  transform: none;
  box-shadow: none;
  opacity: 0.76;
}

.btn-secondary {
  background: rgba(255, 253, 248, 0.92);
  color: #1f5e55;
  border: 1px solid rgba(47, 127, 115, 0.18);
  box-shadow: 0 12px 30px -24px rgba(47, 127, 115, 0.28);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 32px -24px rgba(47, 127, 115, 0.26);
}

.btn-secondary:disabled {
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  opacity: 0.58;
}

.btn-retry {
  width: 100%;
  margin-top: 0.75rem;
}

.btn-retry[hidden] {
  display: none !important;
}

.result {
  min-height: 34rem;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1.3rem;
}

.result-empty {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 23rem;
  padding: clamp(1rem, 3vw, 2rem);
  border-radius: 1.5rem;
  border: 1px dashed rgba(47, 127, 115, 0.24);
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.88), rgba(239, 228, 209, 0.56));
  text-align: center;
}

.result-empty-tag {
  margin: 0;
  color: #b06a3c;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.result-empty-title {
  margin: 1rem 0 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.4;
}

.result-empty-copy {
  max-width: 34rem;
  margin: 0.9rem auto 0;
  line-height: 1.85;
}

.result-container {
  display: none;
  list-style: none;
  padding: 0;
  margin: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.result.has-results .result-empty {
  display: none;
}

.result.has-results .result-container {
  display: grid;
}

.name-box {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 18rem;
  padding: 1.3rem;
  border-radius: 1.5rem;
  border: 1px solid rgba(47, 127, 115, 0.16);
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.95), rgba(243, 235, 224, 0.88));
  box-shadow: 0 24px 42px -36px rgba(70, 54, 36, 0.55);
  animation: card-rise 360ms ease both;
  animation-delay: calc(var(--card-index, 0) * 55ms);
}

.name-box::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    linear-gradient(135deg, rgba(47, 127, 115, 0.08), transparent 45%),
    linear-gradient(0deg, transparent 78%, rgba(176, 106, 60, 0.08));
  pointer-events: none;
}

.name-box > * {
  position: relative;
  z-index: 1;
}

.name-order {
  margin: 0;
  color: #b06a3c;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.name-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
}

.name-main {
  min-width: 0;
}

.name-value {
  margin: 0.65rem 0 0;
  color: #2f261f;
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.12;
  word-break: break-all;
}

.name-source {
  display: inline-flex;
  align-self: flex-start;
  margin-top: 0.8rem;
  padding: 0.35rem 0.72rem;
  border-radius: 999px;
  background: rgba(47, 127, 115, 0.1);
  color: #1f5e55;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  word-break: break-word;
}

.copy-btn {
  flex: 0 0 auto;
  min-width: 4.25rem;
  min-height: 2.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(47, 127, 115, 0.2);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.84);
  color: #1f5e55;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  tap-highlight-color: transparent;
}

.copy-btn:hover,
.copy-btn:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(47, 127, 115, 0.38);
  box-shadow: 0 14px 24px -18px rgba(31, 94, 85, 0.4);
}

.sentence {
  margin: 1rem 0 0;
  color: #2f261f;
  font-size: 1rem;
  line-height: 1.9;
  word-break: break-word;
}

.sentence .quote {
  color: #b06a3c;
  font-size: 1.1rem;
}

.sentence i {
  font-style: normal;
  color: #1f5e55;
  font-weight: 700;
  background: linear-gradient(180deg, transparent 45%, rgba(47, 127, 115, 0.18) 45%);
}

.source-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(89, 72, 56, 0.08);
  font-size: 0.85rem;
  color: #65594c;
  word-break: break-word;
}

.book,
.author {
  line-height: 1.7;
}

.author {
  text-align: right;
}

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes dots-slide {
  0%,
  100% {
    transform: translateX(0);
    box-shadow:
      1rem 0 0 rgba(47, 127, 115, 0.45),
      2rem 0 0 rgba(47, 127, 115, 0.18);
  }

  50% {
    transform: translateX(0.18rem);
    box-shadow:
      1rem 0 0 rgba(47, 127, 115, 0.18),
      2rem 0 0 rgba(47, 127, 115, 0.45);
  }
}

@media (max-width: 991px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .action-row,
  .book-selector,
  .result-container {
    grid-template-columns: 1fr;
  }

  .result-header,
  .source-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .author {
    text-align: left;
  }

  .name-head {
    position: relative;
    display: block;
  }

  .copy-btn {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 3.85rem;
    min-height: 2.2rem;
    padding: 0.42rem 0.78rem;
  }

  .name-order,
  .name-value {
    padding-right: 5rem;
  }

  .name-source {
    margin-top: 0.45rem;
    max-width: 100%;
  }

  .sentence {
    margin-top: 0.5rem;
  }

  .source-row {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.45rem 0.85rem;
  }

  .book {
    flex: 1 1 12rem;
  }

  .author {
    flex: 0 1 auto;
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}