/* =========================================================
   人生实验室 (LIFE LAB) — 纸上实验室视觉系统
   主调：温润象牙实验台 + 亮朱砂/酸化柠/钴蓝/苔绿 + 刻度网格与邮戳批注
   ========================================================= */

:root {
  --bg-ivory: #f6f1e6;
  --bg-cream: #efe8d8;
  --bg-paper: #fbf8f1;
  --bg-dark: #151412;
  --ink: #171614;
  --ink-soft: #4e4a43;
  --ink-muted: #7b756b;
  --line: rgba(23, 22, 20, 0.14);
  --line-strong: rgba(23, 22, 20, 0.28);

  --vermilion: #ff4b26;
  --vermilion-soft: #ffe4dc;
  --cobalt: #1d4ed8;
  --cobalt-soft: #dde7ff;
  --moss: #15803d;
  --moss-soft: #dcfce7;
  --amber: #d97706;
  --amber-soft: #fef3c7;
  --lime: #d9f94a;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "Source Han Serif SC", Georgia, serif;
  --font-sans: "Plus Jakarta Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-card: 6px 6px 0px #171614;
  --shadow-soft: 0 18px 40px rgba(23, 22, 20, 0.08);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-ivory);
  color: var(--ink);
  font-family: var(--font-sans);
}

body {
  margin: 0;
  overflow-x: hidden;
  background-color: var(--bg-ivory);
  /* 实验室毫米坐标纸背景与柔和环境光 */
  background-image:
    radial-gradient(circle at 14% 12%, rgba(255, 75, 38, 0.11), transparent 32%),
    radial-gradient(circle at 86% 24%, rgba(217, 249, 74, 0.22), transparent 34%),
    radial-gradient(circle at 75% 78%, rgba(29, 78, 216, 0.08), transparent 36%),
    linear-gradient(to right, rgba(23, 22, 20, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23, 22, 20, 0.045) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 36px 36px, 36px 36px;
  line-height: 1.6;
}

/* 顶部动态采样与遥测滚动条 */
.telemetry-bar {
  background: var(--ink);
  color: var(--bg-ivory);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--ink);
  overflow: hidden;
  white-space: nowrap;
  padding: 8px 0;
  position: relative;
  z-index: 40;
}

.telemetry-track {
  display: inline-flex;
  align-items: center;
  gap: 36px;
  animation: tickerMove 38s linear infinite;
}

.telemetry-bar:hover .telemetry-track {
  animation-play-state: paused;
}

.telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.telemetry-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  display: inline-block;
  box-shadow: 0 0 8px var(--lime);
}

.telemetry-dot.hot {
  background: var(--vermilion);
  box-shadow: 0 0 8px var(--vermilion);
}

@keyframes tickerMove {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 顶部导航栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 35;
  backdrop-filter: blur(12px);
  background: rgba(246, 241, 230, 0.88);
  border-bottom: 1.5px solid var(--ink);
}

.nav-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 40px;
  height: 40px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  background: var(--lime);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.2s ease;
}

.brand:hover .brand-mark {
  transform: rotate(-6deg) scale(1.05);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-link {
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.nav-link span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  margin-right: 4px;
}

.nav-link:hover {
  border-color: var(--ink);
  background: var(--bg-paper);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.specimen-pill {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1.5px dashed var(--ink);
  background: var(--bg-paper);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.specimen-pill strong {
  color: var(--vermilion);
}

/* 语言切换胶囊 */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--bg-ivory);
  padding: 2px;
  gap: 2px;
}

.lang-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink-soft);
  padding: 4px 9px;
  border-radius: 999px;
  transition: all 0.15s ease;
}

.lang-pill:hover {
  color: var(--ink);
  background: rgba(23, 22, 20, 0.07);
}

.lang-pill.active {
  background: var(--ink);
  color: var(--lime);
}

/* 通用按钮 */
.btn {
  appearance: none;
  border: 2px solid var(--ink);
  background: var(--vermilion);
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  padding: 11px 20px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  box-shadow: 4px 4px 0 var(--ink);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}

.btn-secondary {
  background: var(--bg-paper);
  color: var(--ink);
}

.btn-lime {
  background: var(--lime);
  color: var(--ink);
}

/* 容器与章节标尺 */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 28px;
}

.section-ruler {
  border-top: 1.5px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* =========================================================
   HERO 区域：人生假设工作台
   ========================================================= */
.hero {
  padding: 46px 0 72px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: stretch;
}

.hero-badge-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.lab-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 11px;
  border: 1.5px solid var(--ink);
  border-radius: 6px;
  background: var(--bg-paper);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.lab-tag.highlight {
  background: var(--lime);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4.7vw, 4.2rem);
  line-height: 1.14;
  margin: 0 0 22px;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.hero-title .crossed {
  position: relative;
  color: var(--ink-muted);
  display: inline-block;
  margin: 0 4px;
}

.hero-title .crossed::after {
  content: "";
  position: absolute;
  left: -4%;
  right: -4%;
  top: 52%;
  height: 4px;
  background: var(--vermilion);
  transform: rotate(-4deg);
}

.hero-title .accent-box {
  display: inline-block;
  background: var(--vermilion);
  color: #fff;
  padding: 2px 14px 6px;
  border-radius: 12px;
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  transform: rotate(-1.5deg);
}

.hero-lead {
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 620px;
  margin: 0 0 28px;
}

/* 交互式“如果我……”假设生成器 */
.hypothesis-composer {
  background: var(--bg-paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
  position: relative;
}

.composer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--line-strong);
  padding-bottom: 10px;
}

.composer-sentence {
  font-family: var(--font-serif);
  font-size: clamp(1.12rem, 1.9vw, 1.38rem);
  font-weight: 700;
  line-height: 1.9;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.inline-select {
  appearance: none;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  background: var(--vermilion-soft);
  border: 1.5px solid var(--ink);
  border-radius: 8px;
  padding: 5px 28px 5px 12px;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%),
    linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 14px) 52%, calc(100% - 9px) 52%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.inline-select:hover,
.inline-select:focus {
  background-color: var(--lime);
  outline: none;
  transform: translateY(-1px);
}

.composer-output {
  margin-top: 16px;
  padding: 13px 16px;
  background: var(--bg-ivory);
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.composer-prediction {
  font-size: 14px;
  color: var(--ink);
}

.composer-prediction strong {
  color: var(--vermilion);
  font-family: var(--font-mono);
}

.composer-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* 右侧实时试剂盒可视化面板 */
.hero-chamber {
  background: var(--ink);
  color: var(--bg-ivory);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.chamber-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid rgba(246, 241, 230, 0.16);
  padding-bottom: 14px;
}

.chamber-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lime);
  letter-spacing: 0.06em;
}

.chamber-title {
  font-family: var(--font-serif);
  font-size: 22px;
  margin: 4px 0 0;
}

.stamp-badge {
  border: 2px solid var(--vermilion);
  color: var(--vermilion);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 9px;
  border-radius: 6px;
  transform: rotate(8deg);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 烧杯与波纹动画区 */
.vessel-stage {
  margin: 20px 0;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  align-items: center;
}

.beaker-svg-wrap {
  width: 150px;
  height: 190px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  display: grid;
  place-items: center;
  position: relative;
}

.metric-bars {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metric-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.metric-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #d6d0c4;
}

.metric-track {
  height: 9px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.chamber-log {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #e5dfd3;
}

.chamber-log-line {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 3px 0;
}

.chamber-log-line span:first-child {
  color: var(--lime);
}

/* =========================================================
   SECTION 1: 人生配方合成台 (Interactive Synthesizer)
   ========================================================= */
.synth-section {
  padding: 72px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--vermilion);
  font-weight: 700;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.4vw, 3rem);
  margin: 0;
  line-height: 1.18;
}

.section-desc {
  max-width: 460px;
  color: var(--ink-soft);
  margin: 0;
  font-size: 15px;
}

.synth-workbench {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 32px;
  background: var(--bg-paper);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.sliders-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.reagent-control {
  background: var(--bg-ivory);
  border: 1.5px solid var(--ink);
  border-radius: 14px;
  padding: 13px 18px;
  transition: transform 0.15s ease;
}

.reagent-control:hover {
  transform: translateX(3px);
}

.reagent-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.reagent-name {
  font-weight: 700;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.reagent-symbol {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid var(--ink);
  background: var(--bg-paper);
}

.reagent-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--vermilion);
}

.reagent-slider {
  width: 100%;
  accent-color: var(--vermilion);
  cursor: pointer;
  height: 6px;
}

.reagent-sub {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 4px;
}

.preset-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.preset-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  background: var(--bg-paper);
  cursor: pointer;
  transition: all 0.15s ease;
}

.preset-chip:hover {
  background: var(--lime);
}

/* 右侧实验处方单输出 */
.prescription-card {
  background: var(--bg-ivory);
  border: 2px solid var(--ink);
  border-radius: 18px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  background-image: radial-gradient(rgba(23, 22, 20, 0.08) 1px, transparent 1px);
  background-size: 16px 16px;
}

.rx-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 14px;
}

.rx-id {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
}

.rx-persona {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 900;
  margin: 4px 0 0;
}

.rx-stamp {
  border: 2px solid var(--moss);
  color: var(--moss);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  transform: rotate(-6deg);
}

.rx-radar-wrap {
  display: grid;
  grid-template-columns: 185px 1fr;
  gap: 18px;
  align-items: center;
  padding: 16px 0;
}

.rx-radar-svg {
  width: 185px;
  height: 185px;
}

.rx-summary {
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.65;
}

.rx-matched-box {
  background: var(--bg-paper);
  border: 1.5px solid var(--ink);
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 10px;
}

.rx-matched-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--vermilion);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.rx-matched-exp {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 4px;
}

.rx-footer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* =========================================================
   SECTION 2: 人生元素周期表 / 实验档案库
   ========================================================= */
.catalog-section {
  padding: 72px 0;
}

.filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: var(--bg-paper);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.16s ease;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--ink);
  color: var(--bg-ivory);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.exp-card {
  background: var(--bg-paper);
  border: 2px solid var(--ink);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.exp-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 10px 10px 0 var(--ink);
}

.exp-card.pinned {
  background: #fffbeb;
}

.exp-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.element-tile {
  width: 58px;
  height: 64px;
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: 5px 7px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-ivory);
}

.element-tile.cat-nomad {
  background: var(--cobalt-soft);
}
.element-tile.cat-craft {
  background: var(--amber-soft);
}
.element-tile.cat-social {
  background: var(--vermilion-soft);
}
.element-tile.cat-wild {
  background: var(--moss-soft);
}

.el-num {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
}

.el-sym {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 22px;
  line-height: 1;
}

.el-mass {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--ink-soft);
}

.exp-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.duration-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--bg-ivory);
}

.comfort-meter {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--vermilion);
}

.exp-title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 900;
  margin: 0 0 8px;
}

.exp-location {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.exp-hypothesis {
  font-size: 14px;
  color: var(--ink-soft);
  background: var(--bg-ivory);
  border-left: 3px solid var(--vermilion);
  padding: 9px 12px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 16px;
}

.exp-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  border-top: 1px dashed var(--line-strong);
  border-bottom: 1px dashed var(--line-strong);
  padding: 10px 0;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.exp-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.btn-small {
  padding: 8px 14px;
  font-size: 12.5px;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: var(--bg-ivory);
  cursor: pointer;
  font-weight: 700;
  transition: all 0.15s ease;
}

.btn-small:hover {
  background: var(--lime);
}

.btn-small.active {
  background: var(--ink);
  color: var(--lime);
}

/* =========================================================
   SECTION 3: 命运盲盒离心机 (Gacha / Randomizer)
   ========================================================= */
.centrifuge-section {
  padding: 72px 0;
}

.centrifuge-box {
  background: var(--ink);
  color: var(--bg-ivory);
  border: 2px solid var(--ink);
  border-radius: 26px;
  padding: 42px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.wheel-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.centrifuge-wheel {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  border: 3px dashed var(--lime);
  display: grid;
  place-items: center;
  position: relative;
  transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1);
  background: radial-gradient(circle, rgba(217, 249, 74, 0.16) 0%, rgba(255, 255, 255, 0.02) 70%);
}

.wheel-core {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: var(--vermilion);
  border: 3px solid var(--bg-ivory);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  text-align: center;
  box-shadow: 0 0 28px rgba(255, 75, 38, 0.6);
}

.wheel-orbit-node {
  position: absolute;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
}

.capsule-result {
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px solid rgba(246, 241, 230, 0.24);
  border-radius: 18px;
  padding: 26px;
}

.capsule-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  background: var(--lime);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 10px;
}

.capsule-title {
  font-family: var(--font-serif);
  font-size: 28px;
  margin: 0 0 12px;
  color: #fff;
}

.capsule-steps {
  margin: 14px 0 20px;
  padding-left: 18px;
  color: #dcd5c7;
  font-size: 14.5px;
}

.capsule-steps li {
  margin-bottom: 6px;
}

/* =========================================================
   SECTION 4: 田野实验观察志 (Field Notes & Method)
   ========================================================= */
.fieldnotes-section {
  padding: 72px 0;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.note-card {
  background: var(--bg-paper);
  border: 2px solid var(--ink);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.note-tape {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%) rotate(-2deg);
  width: 96px;
  height: 24px;
  background: rgba(217, 249, 74, 0.78);
  border: 1px solid rgba(23, 22, 20, 0.35);
}

.note-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-muted);
  margin-bottom: 12px;
}

.note-quote {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  margin: 0 0 14px;
}

.note-shift {
  background: var(--bg-ivory);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  margin-bottom: 14px;
}

.note-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--ink-soft);
}

/* =========================================================
   SECTION 5: 底部实验登机牌生成
   ========================================================= */
.boarding-section {
  padding: 72px 0 96px;
}

.ticket-wrapper {
  background: var(--bg-paper);
  border: 2.5px solid var(--ink);
  border-radius: 24px;
  box-shadow: 10px 10px 0 var(--ink);
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  overflow: hidden;
}

.ticket-main {
  padding: 36px;
  border-right: 2.5px dashed var(--ink);
}

.ticket-stub {
  padding: 36px 28px;
  background: var(--lime);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.ticket-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 20px 0;
}

.lab-input {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--ink);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 14px;
  background: var(--bg-ivory);
}

.barcode-bars {
  height: 44px;
  background: repeating-linear-gradient(
    90deg,
    var(--ink) 0px,
    var(--ink) 3px,
    transparent 3px,
    transparent 6px,
    var(--ink) 6px,
    var(--ink) 7px,
    transparent 7px,
    transparent 11px
  );
  margin: 14px 0 6px;
}

/* 模态框：实验协议详情与入驻通行证 */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(21, 20, 18, 0.68);
  backdrop-filter: blur(5px);
  display: none;
  place-items: center;
  z-index: 100;
  padding: 20px;
}

.modal-backdrop.open {
  display: grid;
}

.modal-sheet {
  background: var(--bg-paper);
  border: 2.5px solid var(--ink);
  border-radius: 20px;
  max-width: 640px;
  width: 100%;
  padding: 28px;
  box-shadow: 12px 12px 0 var(--ink);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: var(--bg-ivory);
  cursor: pointer;
  font-weight: 700;
}

/* 页脚 */
.site-footer {
  border-top: 2px solid var(--ink);
  background: var(--bg-cream);
  padding: 40px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .hero-grid,
  .synth-workbench,
  .centrifuge-box,
  .ticket-wrapper {
    grid-template-columns: 1fr;
  }

  .ticket-main {
    border-right: none;
    border-bottom: 2.5px dashed var(--ink);
  }

  .catalog-grid,
  .notes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
  }

  .catalog-grid,
  .notes-grid,
  .ticket-form-row,
  .vessel-stage,
  .rx-radar-wrap {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px 0 48px;
  }

  .synth-workbench,
  .centrifuge-box,
  .ticket-main {
    padding: 22px;
  }
}