:root {
  --bg: #f5ede2;
  --paper: rgba(255, 251, 246, 0.86);
  --paper-strong: #fffdf9;
  --ink: #17253a;
  --muted: #526171;
  --line: rgba(23, 37, 58, 0.12);
  --navy: #17385c;
  --teal: #0f7f79;
  --amber: #cb7d1a;
  --rose: #ad5d4a;
  --mint: rgba(15, 127, 121, 0.08);
  --warn: rgba(203, 125, 26, 0.1);
  --shadow: 0 28px 70px rgba(23, 56, 92, 0.12);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 10%, rgba(15, 127, 121, 0.18), transparent 24%),
    radial-gradient(circle at 88% 14%, rgba(203, 125, 26, 0.16), transparent 26%),
    linear-gradient(180deg, #faf6ef 0%, #f0e6d9 48%, #f5ede2 100%);
}

.orb {
  position: fixed;
  z-index: -2;
  border-radius: 50%;
  filter: blur(24px);
  opacity: 0.42;
}

.orb-a {
  top: -70px;
  left: -40px;
  width: 260px;
  height: 260px;
  background: rgba(15, 127, 121, 0.22);
}

.orb-b {
  top: 16%;
  right: -70px;
  width: 320px;
  height: 320px;
  background: rgba(203, 125, 26, 0.16);
}

.orb-c {
  bottom: -90px;
  left: 18%;
  width: 260px;
  height: 260px;
  background: rgba(173, 93, 74, 0.12);
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 52px;
}

.hero,
.section,
.quick-nav,
.footer {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero::after,
.section::after,
.quick-nav::after,
.footer::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.42), transparent 35%),
    linear-gradient(220deg, rgba(15, 127, 121, 0.05), transparent 28%);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 28px;
  padding: 40px;
}

.eyebrow,
.section-label {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 9ch;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.45rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.08rem;
}

.hero-copy,
.hero-side,
.pitch-card,
.fit-card,
.question-card,
.watchout-card,
.mock-card {
  position: relative;
  z-index: 1;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-text,
.section-note,
.pitch-card p,
.fit-card p,
.question-meta,
.question-answer,
.question-why,
.watchout-card p,
.mock-answer,
.footer p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-actions,
.tag-list,
.filter-row,
.point-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-link,
.ghost-link,
.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.primary-link {
  color: #fff;
  background: var(--navy);
}

.ghost-link {
  color: var(--navy);
  border: 1px solid rgba(23, 56, 92, 0.16);
  background: rgba(255, 255, 255, 0.6);
}

.primary-link:hover,
.ghost-link:hover,
.filter-chip:hover {
  transform: translateY(-2px);
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.summary-grid,
.fit-grid,
.deep-grid,
.followup-grid,
.pitch-grid,
.watchout-grid,
.mock-list {
  display: grid;
  gap: 16px;
}

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

.summary-card,
.fit-card,
.deep-card,
.followup-card,
.pitch-card,
.question-card,
.watchout-card,
.mock-card {
  border: 1px solid rgba(23, 37, 58, 0.08);
  border-radius: var(--radius-lg);
  background: var(--paper-strong);
}

.summary-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 130px;
  padding: 20px;
}

.summary-card span,
.fit-card span,
.deep-card span,
.followup-card span,
.watchout-card span,
.mock-index {
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.summary-card strong,
.fit-card h3,
.deep-card h3,
.followup-card h3,
.question-title,
.watchout-card h3 {
  line-height: 1.45;
}

.summary-card-strong {
  color: #fff;
  background: linear-gradient(145deg, rgba(23, 56, 92, 0.96), rgba(15, 127, 121, 0.92));
}

.summary-card-strong span,
.summary-card-strong strong {
  color: #fff;
}

.quick-nav,
.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
  padding: 16px 20px;
}

.quick-nav a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
}

.section {
  margin-top: 24px;
  padding: 34px;
}

.section-head {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
  margin-bottom: 22px;
}

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

.fit-card,
.deep-card,
.followup-card,
.pitch-card,
.watchout-card,
.mock-card {
  padding: 22px;
}

.fit-card,
.deep-card {
  display: grid;
  gap: 12px;
}

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

.deep-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 242, 234, 0.93));
}

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

.followup-card {
  display: grid;
  gap: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 241, 233, 0.94));
}

.followup-lead {
  color: var(--navy);
  font-weight: 700;
  line-height: 1.7;
}

.followup-chain {
  display: grid;
  gap: 10px;
}

.followup-item {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(23, 56, 92, 0.06);
}

.followup-ask {
  color: var(--ink);
  font-weight: 700;
  line-height: 1.65;
}

.followup-reply {
  color: var(--muted);
  line-height: 1.75;
}

.deep-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.75;
}

.deep-card li + li {
  margin-top: 6px;
}

.deep-highlight {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  color: var(--ink);
  line-height: 1.7;
  background: var(--mint);
}

.pitch-grid {
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
}

.intro-card {
  display: grid;
  gap: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 244, 236, 0.92));
}

.tag-list span,
.point-chip {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 700;
  background: rgba(23, 56, 92, 0.08);
}

.pitch-note {
  margin-top: 14px;
}

.bank-head {
  align-items: start;
}

.bank-tools {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: end;
}

.filter-row {
  justify-content: end;
}

.filter-chip {
  color: var(--navy);
  cursor: pointer;
  border: 1px solid rgba(23, 56, 92, 0.12);
  background: rgba(255, 255, 255, 0.68);
}

.filter-chip.active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--navy), var(--teal));
}

.search-box {
  display: grid;
  gap: 8px;
  width: min(320px, 100%);
  color: var(--muted);
  font-size: 0.93rem;
}

.search-box input {
  width: 100%;
  min-height: 48px;
  padding: 0 16px;
  color: var(--ink);
  font: inherit;
  border: 1px solid rgba(23, 56, 92, 0.14);
  border-radius: 14px;
  outline: none;
  background: rgba(255, 255, 255, 0.8);
}

.search-box input:focus {
  border-color: rgba(15, 127, 121, 0.56);
  box-shadow: 0 0 0 4px rgba(15, 127, 121, 0.12);
}

.stats-bar {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.question-list {
  display: grid;
  gap: 14px;
}

.question-card {
  padding: 0;
}

.question-card summary {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 22px;
  list-style: none;
  cursor: pointer;
}

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

.question-main {
  flex: 1;
  display: grid;
  gap: 8px;
}

.question-index {
  color: var(--amber);
  font-size: 0.88rem;
  font-weight: 700;
}

.question-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex: none;
  color: var(--navy);
  font-weight: 700;
  border: 1px solid rgba(23, 56, 92, 0.08);
  background: rgba(255, 255, 255, 0.92);
}

.question-card[open] .question-toggle {
  color: #fff;
  background: var(--navy);
}

.question-body {
  display: grid;
  gap: 14px;
  padding: 0 22px 22px;
}

.question-why,
.watchout-tip,
.mock-answer {
  padding: 14px 16px;
  border-radius: var(--radius-md);
}

.question-why {
  background: var(--mint);
}

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

.watchout-card {
  display: grid;
  gap: 12px;
}

.watchout-tip {
  background: var(--warn);
  color: var(--ink);
  line-height: 1.7;
}

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

.mock-card {
  display: grid;
  gap: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 243, 234, 0.93));
}

.mock-answer {
  background: rgba(15, 127, 121, 0.08);
}

.empty-state {
  padding: 30px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed rgba(23, 56, 92, 0.14);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  color: var(--navy);
  font-family: "JetBrains Mono", "Cascadia Mono", monospace;
  font-size: 0.92em;
  background: rgba(23, 56, 92, 0.08);
}

.key-highlight {
  padding: 0 3px;
  border-radius: 6px;
  color: #bc2f2f;
  font-weight: 700;
  background: rgba(188, 47, 47, 0.1);
}

.memory-hero h1 {
  max-width: 8ch;
}

.memory-intro-grid,
.memory-grid {
  display: grid;
  gap: 16px;
}

.memory-intro-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.memory-tip,
.memory-card {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(23, 37, 58, 0.08);
  border-radius: var(--radius-lg);
  background: var(--paper-strong);
}

.memory-tip {
  padding: 22px;
}

.memory-tip p,
.memory-answer {
  color: var(--muted);
  line-height: 1.75;
}

.memory-tools {
  align-items: end;
}

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

.memory-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 243, 234, 0.94));
}

.memory-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ppt-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ppt-card {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(23, 37, 58, 0.08);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 243, 234, 0.94));
}

.ppt-followup {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(23, 56, 92, 0.06);
}

.ppt-followup strong,
.ppt-source {
  color: var(--navy);
}

.ppt-followup-list {
  display: grid;
  gap: 10px;
}

.ppt-followup-item {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
}

.ppt-followup-question,
.ppt-followup-answer {
  color: var(--muted);
  line-height: 1.75;
}

.ppt-followup-question {
  color: var(--ink);
  font-weight: 700;
}

.ppt-source {
  margin-top: 2px;
  font-size: 0.92rem;
  font-weight: 700;
}

@media (max-width: 1080px) {
  .hero,
  .fit-grid,
  .deep-grid,
  .followup-grid,
  .pitch-grid,
  .memory-intro-grid,
  .memory-grid,
  .ppt-grid,
  .watchout-grid,
  .mock-list {
    grid-template-columns: 1fr 1fr;
  }

  .pitch-grid .intro-card {
    grid-column: span 2;
  }
}

@media (max-width: 860px) {
  .shell {
    width: min(100% - 18px, 100%);
    padding-top: 18px;
  }

  .hero,
  .summary-grid,
  .fit-grid,
  .deep-grid,
  .followup-grid,
  .pitch-grid,
  .memory-intro-grid,
  .memory-grid,
  .ppt-grid,
  .watchout-grid,
  .mock-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 28px 22px;
  }

  .section {
    padding: 26px 20px;
  }

  .section-head,
  .bank-head,
  .stats-bar {
    flex-direction: column;
    align-items: start;
  }

  .quick-nav {
    gap: 10px 16px;
  }

  .bank-tools,
  .filter-row {
    width: 100%;
    align-items: start;
    justify-content: start;
  }

  .search-box {
    width: 100%;
  }

  .question-card summary {
    padding: 18px;
  }

  .question-body {
    padding: 0 18px 18px;
  }
}

.boss-preview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  gap: 28px;
  align-items: stretch;
  margin-bottom: 24px;
  padding: 28px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top left, rgba(40, 236, 209, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(36, 110, 255, 0.18), transparent 32%),
    linear-gradient(180deg, #081018 0%, #111927 100%);
  color: #eef8f7;
  box-shadow: 0 28px 80px rgba(8, 16, 24, 0.28);
}

.boss-preview-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
}

.boss-preview-label {
  margin: 0;
  color: #73f6e2;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.boss-preview-title {
  margin: 0;
  max-width: 14ch;
  color: #f8fcff;
  font-size: clamp(2.1rem, 4vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.boss-preview-text {
  max-width: 56ch;
  color: rgba(232, 243, 248, 0.8);
  line-height: 1.8;
}

.boss-preview-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.boss-preview-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(120, 240, 224, 0.2);
  border-radius: 999px;
  background: rgba(11, 21, 31, 0.48);
  color: #dff8f3;
  font-size: 0.92rem;
}

.boss-phone {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 780px;
  border: 1px solid rgba(117, 226, 211, 0.18);
  border-radius: 34px;
  background: linear-gradient(180deg, #0b1118 0%, #161d27 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 22px 60px rgba(0, 0, 0, 0.36);
  overflow: hidden;
}

.boss-statusbar,
.boss-navbar,
.boss-scroll-area,
.boss-bottom-actions {
  position: relative;
  z-index: 1;
}

.boss-statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px 12px;
  color: #f8fbff;
  font-size: 0.86rem;
}

.boss-status-left,
.boss-status-right,
.boss-navbar-actions,
.boss-benefits-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.boss-status-center {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.84rem;
}

.boss-muted-icon {
  opacity: 0.7;
}

.boss-battery {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 18px;
  padding: 0 6px;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(246, 71, 71, 0.92) 0 32%, rgba(255, 255, 255, 0.1) 32%);
  color: #fff;
  font-size: 0.75rem;
}

.boss-navbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 4px 20px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.boss-icon-button {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
  color: #eef6f9;
  font-size: 1rem;
  cursor: pointer;
}

.boss-navbar-title {
  flex: 1;
  color: #f4fbff;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.boss-navbar-actions {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.94rem;
}

.boss-scroll-area {
  display: grid;
  gap: 20px;
  flex: 1;
  padding: 16px 20px 124px;
  color: rgba(255, 255, 255, 0.92);
}

.boss-fragment {
  color: rgba(173, 186, 199, 0.88);
  font-size: 0.92rem;
}

.boss-detail-block {
  display: grid;
  gap: 14px;
}

.boss-detail-block h2 {
  margin: 0;
  color: #ffffff;
  font-size: 1rem;
  letter-spacing: 0;
}

.boss-detail-block ol {
  margin: 0;
  padding-left: 20px;
  color: rgba(229, 236, 245, 0.88);
}

.boss-detail-block li {
  line-height: 1.82;
}

.boss-detail-block li + li {
  margin-top: 8px;
}

.boss-benefits-block {
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.boss-help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: rgba(231, 241, 248, 0.88);
  font-size: 0.74rem;
}

.boss-benefits-note {
  color: rgba(166, 181, 195, 0.88);
  line-height: 1.7;
}

.boss-benefit-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.boss-benefit-chips span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(53, 67, 84, 0.66);
  color: #dbe8f2;
  font-size: 0.86rem;
}

.boss-bottom-actions {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 12px;
  padding: 16px 20px 20px;
  background: linear-gradient(180deg, rgba(11, 17, 24, 0) 0%, rgba(11, 17, 24, 0.96) 32%);
}

.boss-secondary-action,
.boss-primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
}

.boss-secondary-action {
  border: 1.5px solid #2addcf;
  background: rgba(19, 31, 41, 0.92);
  color: #2addcf;
  cursor: pointer;
}

.boss-primary-action {
  border: 0;
  background: linear-gradient(180deg, #2fe8db 0%, #19c8c0 100%);
  color: #042022;
  box-shadow: 0 10px 30px rgba(34, 221, 205, 0.22);
}

.boss-preview.is-collapsed .boss-phone {
  min-height: auto;
}

.boss-preview.is-collapsed .boss-scroll-area {
  display: none;
}

.boss-preview.is-collapsed .boss-bottom-actions {
  position: static;
  padding-top: 0;
  background: transparent;
}

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

  .boss-preview-title {
    max-width: none;
  }

  .boss-phone {
    min-height: 740px;
  }
}

@media (max-width: 680px) {
  .boss-preview {
    padding: 20px;
    border-radius: 26px;
  }

  .boss-phone {
    min-height: 680px;
    border-radius: 28px;
  }

  .boss-scroll-area {
    padding: 14px 16px 118px;
  }

  .boss-bottom-actions {
    grid-template-columns: 1fr 1.1fr;
    padding: 14px 16px 16px;
  }
}