:root {
  --bg-gradient: radial-gradient(circle at top left, #1f3b72 0%, #050816 45%, #02030a 100%);
  --bg-card: rgba(13, 21, 40, 0.96);
  --bg-card-soft: rgba(15, 25, 50, 0.9);
  --border-subtle: rgba(120, 145, 200, 0.3);
  --border-soft: rgba(255, 255, 255, 0.06);
  --accent: #39e2ff;
  --accent-soft: #66f0c8;
  --accent-gradient: linear-gradient(135deg, #39e2ff 0%, #66f0c8 35%, #4d7dff 100%);
  --accent-gradient-soft: linear-gradient(135deg, #1d9cff 0%, #40e0c2 100%);
  --text-main: #f4f7ff;
  --text-soft: #c2c9e5;
  --text-mute: #8b93b7;
  --danger: #ff6b81;
  --radius-lg: 18px;
  --radius-xl: 22px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --shadow-card: 0 18px 40px rgba(2, 8, 28, 0.85);
  --shadow-nav: 0 10px 30px rgba(0, 0, 0, 0.5);
  --container-width: 1120px;
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Microsoft YaHei", system-ui, -system-ui, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-main);
  line-height: 1.6;
}

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

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

.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* 顶部导航 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: radial-gradient(circle at top left, rgba(60, 92, 190, 0.18), rgba(5, 8, 20, 0.86));
  border-bottom: 1px solid rgba(100, 120, 200, 0.25);
  transition: box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-nav);
  background: rgba(4, 9, 26, 0.96);
  border-bottom-color: rgba(100, 120, 200, 0.32);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-circle {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px rgba(57, 226, 255, 0.7);
  font-weight: 700;
  font-size: 18px;
  color: #020310;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.logo-subtitle {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--text-soft);
}

.nav-link {
  position: relative;
  padding: 4px 0;
  cursor: pointer;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  border-radius: 999px;
  background: var(--accent-gradient-soft);
  transition: width 0.2s ease;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link:hover::after {
  width: 18px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  height: 36px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease,
    transform 0.08s ease, border-color 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
  box-shadow: none;
}

.btn-outline {
  border-color: rgba(120, 140, 200, 0.8);
  color: var(--text-soft);
  background: rgba(6, 10, 30, 0.4);
}

.btn-outline:hover {
  background: rgba(14, 26, 60, 0.95);
  color: #ffffff;
  box-shadow: 0 0 0 1px rgba(86, 114, 210, 0.8);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #020312;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(70, 230, 230, 0.5);
  border: none;
}

.btn-primary:hover {
  box-shadow: 0 12px 28px rgba(70, 240, 220, 0.7);
}

/* Hero 首屏 */

.hero {
  padding: 64px 0 48px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.6fr);
  gap: 40px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  background: rgba(18, 32, 72, 0.85);
  border: 1px solid rgba(100, 140, 230, 0.7);
  color: var(--text-soft);
  margin-bottom: 18px;
}

.hero-kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #41f0c1;
  box-shadow: 0 0 0 5px rgba(65, 240, 193, 0.25);
}

.hero-title {
  font-size: 40px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin: 0 0 16px;
}

.hero-title span.highlight {
  background: linear-gradient(120deg, #3ae6ff, #ffffff);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-soft);
  max-width: 520px;
  margin-bottom: 18px;
}

.hero-support {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 24px;
}

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

.hero-note {
  font-size: 12px;
  color: var(--text-mute);
}

.hero-note strong {
  color: var(--accent-soft);
  font-weight: 500;
}

/* 报告卡片 */

.hero-card {
  background: radial-gradient(circle at top left, rgba(70, 115, 240, 0.38), rgba(7, 9, 24, 0.98));
  border-radius: 26px;
  padding: 20px 22px 18px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(120, 150, 230, 0.7);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(90, 255, 210, 0.18), transparent 60%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-card-inner {
  position: relative;
  z-index: 1;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.hero-card-kicker {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(199, 210, 255, 0.8);
}

.hero-card-badge {
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(11, 21, 48, 0.85);
  border: 1px solid rgba(171, 196, 255, 0.8);
  color: var(--text-soft);
}

.hero-card-type {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.hero-card-type-main {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.hero-card-type-label {
  font-size: 12px;
  color: var(--text-soft);
}

.hero-card-dimension-row {
  display: grid;
  grid-template-columns: 1.1fr 2.2fr 1.1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  font-size: 11px;
  color: var(--text-soft);
}

.hero-card-dimension-name {
  text-align: right;
  opacity: 0.9;
}

.hero-card-dimension-bar {
  position: relative;
  height: 7px;
  border-radius: 999px;
  background: rgba(7, 11, 32, 0.9);
  overflow: hidden;
}

.hero-card-dimension-bar-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #37e4ff, #6bffcf);
}

.hero-card-dimension-label {
  font-size: 11px;
  color: rgba(211, 222, 255, 0.95);
}

.hero-card-dimension-score {
  text-align: left;
  font-size: 11px;
  color: rgba(225, 235, 255, 0.95);
}

.hero-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.hero-pill {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(153, 194, 255, 0.7);
  background: rgba(15, 26, 60, 0.85);
  font-size: 11px;
  color: rgba(215, 225, 255, 0.96);
  backdrop-filter: blur(12px);
}

.hero-pill:nth-child(2) {
  border-color: rgba(113, 248, 210, 0.85);
  background: rgba(8, 48, 48, 0.92);
}

.hero-pill:nth-child(3) {
  border-color: rgba(242, 197, 130, 0.85);
  background: rgba(48, 32, 10, 0.92);
}

/* 公共区块样式 */

section {
  padding: 40px 0;
}

.section-header {
  margin-bottom: 20px;
}

.section-kicker {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-mute);
  margin-bottom: 8px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 8px;
}

.section-desc {
  font-size: 14px;
  color: var(--text-soft);
  max-width: 620px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 18px 18px 16px;
  box-shadow: 0 18px 35px rgba(3, 8, 24, 0.8);
}

.card-soft {
  background: var(--bg-card-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 18px 18px 16px;
  box-shadow: 0 16px 32px rgba(3, 8, 24, 0.78);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-body {
  font-size: 13px;
  color: var(--text-soft);
}

.card-list {
  padding-left: 18px;
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-soft);
}

.card-list li + li {
  margin-top: 4px;
}

/* 产品特点 */

.features {
  padding-top: 32px;
}

/* 服务与信任背书 */

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.trust-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(28, 46, 90, 0.9);
  border: 1px solid rgba(122, 163, 255, 0.7);
  color: var(--text-soft);
  margin-bottom: 6px;
}

.trust-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ff0c5;
}

/* 引擎 + 方法论 */

.engine-header {
  margin-bottom: 20px;
}

.engine-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
  gap: 22px;
  align-items: flex-start;
}

.engine-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.engine-card {
  background: rgba(11, 18, 40, 0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 14px 15px 13px;
}

.engine-card-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
}

.engine-card-body {
  font-size: 13px;
  color: var(--text-soft);
}

.expert-card {
  position: relative;
  padding: 16px 16px 14px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(78, 129, 255, 0.4), rgba(8, 10, 24, 0.96));
  border: 1px solid rgba(138, 174, 255, 0.86);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.expert-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top right, rgba(102, 255, 220, 0.22), transparent 58%);
  opacity: 0.9;
  pointer-events: none;
}

.expert-inner {
  position: relative;
  z-index: 1;
}

.expert-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.expert-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: radial-gradient(circle at 25% 0, #fefefe, #9cd6ff, #4576ff);
  box-shadow: 0 0 20px rgba(125, 178, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 700;
  color: #102154;
}

.expert-name {
  font-size: 14px;
  font-weight: 600;
}

.expert-role {
  font-size: 12px;
  color: rgba(220, 230, 255, 0.88);
}

.expert-body {
  font-size: 13px;
  color: rgba(221, 231, 255, 0.96);
}

/* 你会获得什么 */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.benefit-tag {
  font-size: 11px;
  color: var(--accent-soft);
  margin-bottom: 6px;
}

.benefit-cta {
  margin-top: 8px;
  font-size: 12px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.benefit-cta::after {
  content: "↗";
  font-size: 11px;
}

/* 定价区 */

.pricing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-note {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 12px;
}

.pricing-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(20, 40, 80, 0.9);
  border: 1px solid rgba(120, 170, 255, 0.9);
  color: var(--text-soft);
  margin-bottom: 10px;
}

.pricing-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.pricing-card {
  background: rgba(10, 16, 34, 0.85);
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(120, 140, 200, 0.7);
  padding: 14px 14px 12px;
  color: var(--text-soft);
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: "计划中";
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 11px;
  color: rgba(180, 192, 230, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.pricing-card-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.pricing-card-body {
  font-size: 12px;
  color: var(--text-mute);
}

.pricing-cta {
  margin-top: 14px;
}

.btn-ghost {
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(130, 185, 255, 0.9);
  background: rgba(5, 12, 32, 0.9);
  font-size: 13px;
  color: var(--accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.08s ease;
}

.btn-ghost:hover {
  background: rgba(18, 40, 88, 0.98);
  box-shadow: 0 8px 20px rgba(60, 140, 255, 0.6);
}

.btn-ghost:active {
  transform: translateY(1px);
  box-shadow: none;
}

/* FAQ */

.faq-list {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: rgba(6, 10, 28, 0.96);
  padding: 10px 12px;
}

details.faq-item {
  border-radius: 12px;
  padding: 8px 10px;
}

details.faq-item + details.faq-item {
  border-top: 1px solid rgba(80, 95, 150, 0.6);
}

.faq-summary {
  list-style: none;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid rgba(117, 140, 210, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: rgba(199, 213, 255, 0.9);
}

details[open] .faq-icon {
  background: var(--accent-gradient-soft);
  border-color: transparent;
  color: #020314;
}

.faq-content {
  margin-top: 6px;
  font-size: 13px;
  color: var(--text-mute);
}

/* Footer */

.site-footer {
  margin-top: 40px;
  border-top: 1px solid rgba(80, 95, 150, 0.7);
  background: radial-gradient(circle at top center, rgba(50, 84, 190, 0.24), rgba(3, 7, 24, 0.98));
  padding: 26px 0 20px;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
  font-size: 13px;
}

.footer-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}

.footer-link {
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 5px;
  display: block;
  cursor: pointer;
}

.footer-link:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 11px;
  color: var(--text-mute);
  border-top: 1px solid rgba(75, 90, 150, 0.7);
  padding-top: 10px;
  margin-top: 2px;
}

.footer-bottom a {
  color: var(--text-mute);
  text-decoration: underline;
  text-decoration-style: dotted;
}

/* 响应式 */

.nav-toggle {
  display: none;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(120, 140, 200, 0.9);
  background: rgba(6, 12, 32, 0.95);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle-line {
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: #e2e7ff;
  position: relative;
}

.nav-toggle-line::before,
.nav-toggle-line::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: inherit;
  background: inherit;
}

.nav-toggle-line::before {
  top: -5px;
}

.nav-toggle-line::after {
  top: 5px;
}

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.1fr);
  }

  .hero-card {
    margin-top: 4px;
  }

  .grid-3,
  .benefits-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .engine-layout,
  .pricing-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-center,
  .nav-right {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-header.nav-open .nav-center,
  .site-header.nav-open .nav-right {
    display: flex;
    flex-direction: column;
    position: absolute;
    left: 12px;
    right: 12px;
    top: 60px;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(5, 10, 28, 0.98);
    border: 1px solid rgba(106, 132, 210, 0.8);
    box-shadow: var(--shadow-soft);
  }

  .site-header.nav-open .nav-center {
    gap: 14px;
    margin-bottom: 10px;
  }

  .site-header.nav-open .nav-right {
    flex-direction: row;
    justify-content: flex-start;
    gap: 10px;
  }

  .site-header.nav-open .nav-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding-top: 8px;
    padding-bottom: 10px;
    height: auto;
  }

  .hero {
    padding-top: 80px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 14px;
  }

  .grid-3,
  .benefits-grid,
  .trust-grid,
  .pricing-card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-top {
    grid-template-columns: minmax(0, 1fr);
  }

  section {
    padding: 32px 0;
  }
}
/* ================== 测试引擎：题目列表（16P 风格） ================== */

.engine-main {
  padding: 40px 0 32px;
}

.engine-header-row {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.3fr);
  gap: 20px;
  margin-bottom: 18px;
}

.engine-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 8px;
}

.engine-sub {
  font-size: 14px;
  color: var(--text-soft);
}

.engine-meta {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-mute);
}

.engine-meta strong {
  color: var(--accent-soft);
}

.engine-hint-card {
  background: var(--bg-card-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 14px 16px 12px;
  font-size: 13px;
  color: var(--text-soft);
}

/* 题目列表整体 */

.fm-question-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 80px;
}

.fm-question-card {
  background: rgba(7, 11, 30, 0.96);
  border-radius: 16px;
  border: 1px solid rgba(70, 96, 170, 0.6);
  padding: 14px 16px 12px;
  margin-bottom: 10px;          /* 控制题目间距，让一屏约 4–5 题 */
  box-shadow: 0 12px 26px rgba(2, 6, 20, 0.9);
  position: relative;
}

.fm-question-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.fm-question-index {
  font-size: 13px;
  font-weight: 600;
}

.fm-question-dimension {
  font-size: 11px;
  color: var(--text-mute);
}

.fm-question-stem {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 10px;
}

/* 5 级同意度量表（16P 风格） */

.fm-scale-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.fm-scale-label {
  font-size: 12px;
  color: var(--text-mute);
  width: 46px;
}

.fm-scale-options {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fm-scale-option {
  position: relative;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.fm-scale-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.fm-scale-circle {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(140, 165, 240, 0.6);
  background: rgba(5, 8, 20, 0.9);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease,
    background 0.15s ease;
}

/* 中间两个圆稍微小一点，形成 16P 那种层级感 */
.fm-scale-option[data-strength="2"] .fm-scale-circle {
  width: 22px;
  height: 22px;
}
.fm-scale-option[data-strength="1"] .fm-scale-circle {
  width: 19px;
  height: 19px;
}
.fm-scale-option[data-strength="0"] .fm-scale-circle {
  width: 16px;
  height: 16px;
}

/* 选中态：蓝绿渐变 + 外发光 */
.fm-scale-option input:checked + .fm-scale-circle {
  border-color: transparent;
  background: var(--accent-gradient-soft);
  box-shadow: 0 0 0 4px rgba(80, 230, 210, 0.35);
  transform: scale(1.03);
}

/* 正在答的题目，高亮背景一点点 */

.fm-question-card.is-active {
  border-color: rgba(100, 210, 255, 0.9);
  box-shadow: 0 16px 36px rgba(20, 120, 200, 0.5);
}

/* 底部固定提交条 */

.engine-bottom-bar {
  position: sticky;
  bottom: 0;
  z-index: 5;
  background: linear-gradient(
    180deg,
    rgba(3, 7, 20, 0) 0%,
    rgba(3, 7, 20, 0.92) 20%,
    rgba(3, 7, 20, 0.98) 100%
  );
  padding: 10px 0 2px;
}

.engine-bottom-inner {
  display: flex;
  justify-content: flex-end;
}

.engine-submit {
  min-width: 180px;
}

/* 小屏优化：所有卡片堆叠展示 */

@media (max-width: 768px) {
  .engine-header-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .fm-question-card {
    margin-bottom: 12px;
    padding: 13px 13px 11px;
  }

  .fm-scale-row {
    align-items: flex-start;
  }

  .fm-scale-label {
    width: 40px;
  }
}
/* 费马模型区块整体间距 */
.model-section {
  padding: 80px 0;
}

/* 三列卡片自适应网格：桌面 3 列，中屏 2 列，手机 1 列 */
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
}

@media (max-width: 1024px) {
  .model-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .model-grid {
    grid-template-columns: 1fr;
  }
}

/* 卡片内部文字样式 */
.model-card {
  padding: 24px 24px 20px;
}

.model-card-kicker {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 8px;
}

.model-card-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.model-card-intro {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.model-card-list {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
}

.model-card-list li {
  margin-bottom: 4px;
}

.model-card-note {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.6;
  opacity: 0.8;
}

/* ================== 结果页：字母 / 特征 / 概要 / 职业 / 成长 / 关系 UI 优化 ================== */

/* 所有结果卡片：更柔和的渐变背景 + 居中宽度 */
.result-section .card,
.result-section .letter-card {
  background: radial-gradient(circle at top left,
    rgba(40, 70, 150, 0.32),
    rgba(7, 10, 26, 0.98));
  border-radius: 20px;
  border: 1px solid rgba(120, 150, 230, 0.55);
  box-shadow: 0 22px 45px rgba(0, 0, 0, 0.82);
  padding: 24px 26px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1200px) {
  .result-section .card,
  .result-section .letter-card {
    padding: 28px 40px;
  }
}

/* 标题下面第一段：加一点视觉起始感（竖条 + 间距） */
.card-title-text,
.section-block .section-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title-text::before,
.section-block .section-title::before {
  content: "";
  width: 6px;
  height: 18px;
  border-radius: 999px;
  background: var(--accent-gradient-soft);
}

/* 通用正文字体：行距加大、左右对齐 */
.result-section p,
.result-section .paragraph,
.result-section .trait-desc,
.result-section .letters-desc,
.result-section .group-desc,
.result-section .group-ex,
.result-section .bullet-desc {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(244, 247, 255, 0.9);
  text-align: justify;
  margin: 6px 0 10px;
}

/* 主叙述型正文：首行缩进，两端对齐 */
.result-section .paragraph,
.result-section .group-ex {
  text-indent: 2em;
}

/* 同一块里的段落之间稍微更紧凑 */
.section-block .paragraph + .paragraph,
.card > .paragraph + .paragraph {
  margin-top: 4px;
}

/* 各 section-block 之间留空气 */
.section-block + .section-block {
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px dashed rgba(130, 155, 220, 0.45);
}

/* ================== 1. 人格字母介绍 INTRODUCTION TO PERSONALITY ALPHABET ================== */

.letter-card {
  position: relative;
  overflow: hidden;
}

.letter-card::before {
  content: "";
  position: absolute;
  inset: -30%;
  background: radial-gradient(circle at top right,
    rgba(102, 255, 220, 0.16),
    transparent 60%);
  opacity: 0.9;
  pointer-events: none;
}

.letters-list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 22px;
}

@media (max-width: 900px) {
  .letters-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

.letters-item {
  display: flex;
  align-items: flex-start;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(3, 6, 22, 0.82);
  border: 1px solid rgba(115, 145, 230, 0.55);
}

/* 覆盖之前 inline 的浅色圆背景，做成渐变圆点 */
.letters-letter {
  width: 32px !important;
  height: 32px !important;
  border-radius: 50%;
  background: linear-gradient(135deg, #5ae8ff, #4f8bff) !important;
  box-shadow: 0 0 18px rgba(75, 220, 255, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700 !important;
  font-size: 16px !important;
  color: #020311 !important;
  flex-shrink: 0;
  margin-right: 12px;
}

.letters-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.letters-title {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

/* 字母描述正文不缩进，左对齐 */
.letters-desc {
  text-indent: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* ================== 2. 人格特征概览 PERSONALITY TRAITS ================== */

.trait-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 20px;
}

@media (max-width: 900px) {
  .trait-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

.trait-item {
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(2, 6, 20, 0.9);
  border: 1px solid rgba(120, 150, 230, 0.55);
}

.trait-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: #ffffff;
}

/* 特征描述不缩进 */
.trait-desc {
  text-indent: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* ================== 3. 职业 / 成长 / 关系：优势 / 短板 / 建议 Bullet 卡片 ================== */

.bullet,
.bullet-weak,
.bullet-tip {
  display: flex;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(1, 4, 16, 0.9);
  margin: 8px 0;
  border: 1px solid rgba(120, 145, 230, 0.55);
}

.bullet-tag {
  flex-shrink: 0;
  align-self: flex-start;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0b1020;
  background: linear-gradient(135deg, #72f5ff, #4dd2ff);
}

.bullet-weak .bullet-tag {
  background: linear-gradient(135deg, #ffb6a4, #ff7b7b);
}

.bullet-tip .bullet-tag {
  background: linear-gradient(135deg, #ffe48a, #ffb347);
}

.bullet-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.bullet-title {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
}

.bullet-desc {
  text-indent: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* ================== 4. 职业方向 / 成长 / 关系中的分组示例 ================== */

.group {
  margin: 10px 0 8px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(1, 5, 20, 0.7);
}

.group-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: #ffffff;
}

.group-desc {
  text-indent: 0;
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 4px;
}

.group-ex {
  font-size: 14px;
  line-height: 1.8;
  text-indent: 2em;
  color: rgba(220, 228, 255, 0.9);
}

/* ================== 5. 概要类长文块（人格概要 / 职业概览 / 成长概览 / 关系概览） ================== */

/* 这些块一般是一个标题 + 多段正文，把第一段略微高亮一点 */
.card > .paragraph:first-of-type,
.section-block .paragraph:first-of-type {
  background: radial-gradient(circle at top left,
    rgba(80, 140, 255, 0.14),
    transparent 70%);
  border-radius: 12px;
  padding: 8px 10px;
  margin-top: 6px;
}