:root {
  color-scheme: light;
  --bg: #f5f7f4;
  --surface: #ffffff;
  --surface-strong: #e9efe9;
  --ink: #111713;
  --muted: #637069;
  --line: #d8e0d8;
  --accent: #2f7d5b;
  --accent-strong: #1f6145;
  --accent-soft: #dcece3;
  --charcoal: #111713;
  --shadow: 0 24px 70px rgba(22, 38, 29, 0.12);
  --radius: 8px;
  --font: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111713;
  --surface: #17211c;
  --surface-strong: #223029;
  --ink: #edf5ef;
  --muted: #a8b6ae;
  --line: #304239;
  --accent: #76c99e;
  --accent-strong: #9de2bc;
  --accent-soft: #203d2f;
  --charcoal: #0d120f;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(135deg, rgba(47, 125, 91, 0.08), transparent 36rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  letter-spacing: 0;
}

button,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-150%);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--bg);
  padding: 0.75rem 1rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
  padding: 0.75rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(216, 224, 216, 0.8);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 13rem;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.25), transparent),
    var(--accent);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.26);
}

.brand strong,
.brand span {
  display: block;
}

.brand strong {
  font-size: 0.95rem;
}

.brand span {
  color: var(--muted);
  font-size: 0.78rem;
}

.view-tabs {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.view-tabs::-webkit-scrollbar {
  display: none;
}

.view-tab,
.icon-button,
.primary-action,
.secondary-action,
.filter-chip,
.phase-button,
.status-button,
.keyword-card button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.view-tab {
  flex: 0 0 auto;
  padding: 0.62rem 0.82rem;
  color: var(--muted);
}

.view-tab.is-active,
.filter-chip.is-active,
.phase-button.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.header-actions {
  display: flex;
  gap: 0.45rem;
}

.icon-button {
  padding: 0.62rem 0.78rem;
  white-space: nowrap;
}

.primary-action,
.secondary-action {
  padding: 0.78rem 1rem;
  font-weight: 700;
  white-space: nowrap;
}

.primary-action {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

:root[data-theme="dark"] .primary-action {
  color: #0f1511;
}

.secondary-action {
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.42);
}

.view-tab:hover,
.icon-button:hover,
.primary-action:hover,
.secondary-action:hover,
.filter-chip:hover,
.phase-button:hover,
.status-button:hover,
.keyword-card button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.view-tab:active,
.icon-button:active,
.primary-action:active,
.secondary-action:active,
.filter-chip:active,
.phase-button:active,
.status-button:active,
.keyword-card button:active {
  transform: translateY(1px);
}

.hero {
  position: relative;
  min-height: min(760px, calc(100dvh - 72px));
  display: grid;
  align-items: center;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 15, 12, 0.92) 0%, rgba(10, 15, 12, 0.74) 34%, rgba(10, 15, 12, 0.1) 72%),
    linear-gradient(0deg, rgba(10, 15, 12, 0.5), transparent 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, calc(100% - 2rem));
  margin-left: clamp(1rem, 7vw, 6rem);
  padding: clamp(3rem, 8vh, 5rem) 0;
  color: #ffffff;
}

.hero-kicker {
  margin: 0 0 1rem;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(2.6rem, 4.8rem, 4.8rem);
  line-height: 1.02;
}

.hero-copy {
  max-width: 34rem;
  margin: 1.1rem 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.8rem;
}

.snapshot {
  width: min(1180px, calc(100% - 2rem));
  margin: -3.5rem auto 0;
  position: relative;
  z-index: 2;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.snapshot-item,
.summary-card,
.move-card,
.phase-card,
.task-card,
.funnel-step,
.script-card,
.product-tier,
.kpi-group,
.keyword-card,
.decision-row,
.rule-item,
.model-shift,
.visual-board {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.snapshot-item {
  padding: 1.15rem;
}

.snapshot-item span,
.task-topline span,
.phase-meta span,
.product-tier span,
.funnel-step span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.snapshot-item strong {
  display: block;
  margin-top: 0.4rem;
  font-size: 1.55rem;
}

.snapshot-item p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.view-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: clamp(2rem, 6vw, 4rem) auto;
}

.view-stack {
  display: grid;
  gap: 1.2rem;
}

.section-heading {
  max-width: 760px;
  padding-top: 0.5rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.18;
}

.section-heading p {
  margin: 0.75rem 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.boss-grid,
.move-grid,
.script-grid,
.kpi-grid,
.keyword-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.summary-card,
.move-card,
.script-card,
.kpi-group,
.keyword-card {
  padding: 1.15rem;
}

.summary-card h3,
.move-card h3,
.decision-row h3,
.phase-card h3,
.task-card h3,
.funnel-step h3,
.script-card h3,
.product-tier h3,
.kpi-group h3,
.keyword-card h3,
.visual-board h3 {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.35;
}

.summary-card p,
.move-card p,
.decision-row p,
.phase-card p,
.task-card p,
.funnel-step p,
.script-card p,
.visual-board p {
  color: var(--muted);
  line-height: 1.72;
}

.model-shift {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.35rem;
  background:
    linear-gradient(135deg, var(--accent-soft), transparent),
    var(--surface);
}

.model-shift h3,
.model-shift p {
  margin: 0;
}

.model-shift p {
  margin-top: 0.5rem;
  color: var(--muted);
  line-height: 1.75;
}

.move-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.move-card {
  display: grid;
  gap: 0.8rem;
}

.move-lines {
  display: grid;
  gap: 0.5rem;
}

.move-lines p {
  margin: 0;
}

.move-lines span {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--accent-strong);
  font-weight: 700;
}

.move-card strong {
  color: var(--ink);
  line-height: 1.55;
}

.decision-list {
  display: grid;
  gap: 0.7rem;
}

.decision-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) 8rem;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
}

.decision-row p,
.decision-row small,
.decision-row span {
  margin: 0.35rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.decision-row span {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.decision-row strong {
  justify-self: end;
  color: var(--accent-strong);
}

.board-hero {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: stretch;
  gap: 1rem;
}

.progress-ring {
  width: 11rem;
  min-height: 11rem;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.35rem;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at center, var(--surface) 0 56%, transparent 57%),
    conic-gradient(var(--accent) calc(var(--progress) * 1%), var(--surface-strong) 0);
  border: 1px solid var(--line);
}

.progress-ring strong {
  font-size: 2.3rem;
}

.progress-ring span {
  color: var(--muted);
  font-weight: 700;
}

.phase-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.phase-button {
  display: grid;
  gap: 0.3rem;
  padding: 1rem;
  text-align: left;
}

.phase-button strong {
  font-size: 1.4rem;
}

.phase-button small {
  color: var(--muted);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.filter-chip {
  padding: 0.65rem 0.9rem;
}

.filter-bar label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--muted);
  font-weight: 700;
}

.filter-bar select {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.65rem 0.9rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.phase-card {
  padding: 1rem;
}

.deliverables {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: 0.85rem;
}

.deliverables span,
.task-meta span,
.task-topline strong,
.status-button {
  border-radius: var(--radius);
  background: var(--surface-strong);
  padding: 0.42rem 0.55rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.task-card {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  padding: 1rem;
}

.task-card.done {
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
}

.task-card p {
  margin: 0;
}

.task-topline,
.task-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  align-items: center;
}

.status-button {
  width: 100%;
  border: 1px solid transparent;
  color: var(--ink);
}

.task-card.doing .status-button {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.task-card.done .status-button {
  background: var(--accent);
  color: #ffffff;
}

:root[data-theme="dark"] .task-card.done .status-button {
  color: #0f1511;
}

.funnel-flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.75rem;
}

.funnel-step {
  padding: 1rem;
  min-height: 15rem;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.funnel-step strong {
  color: var(--accent-strong);
  line-height: 1.5;
}

.script-card blockquote {
  margin: 0.85rem 0;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.75;
}

.rule-board {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}

.rule-item {
  padding: 1rem;
  color: var(--ink);
  line-height: 1.65;
}

.product-ladder {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.product-tier {
  display: grid;
  grid-template-columns: minmax(10rem, 0.8fr) minmax(0, 0.9fr) minmax(0, 1.4fr) minmax(9rem, 0.7fr);
  gap: 1rem;
  align-items: center;
  padding: 1rem;
}

.product-tier p,
.product-tier strong,
.product-tier small {
  margin: 0;
  line-height: 1.6;
}

.product-tier p,
.product-tier small {
  color: var(--muted);
}

.product-tier strong {
  color: var(--ink);
}

.visual-board {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1rem;
  padding: 1.2rem;
}

.visual-board ol {
  margin: 1rem 0 0;
  padding-left: 1.3rem;
  color: var(--muted);
  line-height: 1.85;
}

.visual-rules {
  display: grid;
  gap: 0.65rem;
}

.visual-rules p {
  margin: 0;
  border-radius: var(--radius);
  background: var(--surface-strong);
  padding: 0.8rem;
}

.kpi-group {
  display: grid;
  gap: 0.75rem;
}

.kpi-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 0.8rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}

.kpi-row span {
  color: var(--muted);
}

.kpi-row strong {
  color: var(--accent-strong);
}

.kpi-row small {
  grid-column: 1 / -1;
  color: var(--muted);
  line-height: 1.5;
}

.keyword-card div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.keyword-card button {
  padding: 0.5rem 0.7rem;
  color: var(--muted);
}

.empty-state,
.loading-state {
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

.site-footer {
  width: min(1180px, calc(100% - 2rem));
  margin: 4rem auto 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  opacity: 0;
  transform: translateY(0.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity 520ms ease,
      transform 520ms ease;
  }

  [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr;
  }

  .brand {
    min-width: 0;
  }

  .view-tabs {
    justify-content: flex-start;
  }

  .header-actions {
    overflow-x: auto;
  }

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

  .boss-grid,
  .script-grid,
  .kpi-grid,
  .task-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .funnel-flow,
  .rule-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .product-tier,
  .decision-row {
    grid-template-columns: 1fr;
  }

  .decision-row strong {
    justify-self: start;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    padding: 0.8rem 1rem;
  }

  .hero {
    min-height: 640px;
  }

  .hero-scrim {
    background: linear-gradient(0deg, rgba(10, 15, 12, 0.88), rgba(10, 15, 12, 0.58));
  }

  .hero-content {
    width: calc(100% - 2rem);
    margin: 0 auto;
    align-self: end;
  }

  .hero h1 {
    max-width: 9ch;
    font-size: 2.65rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .snapshot {
    margin-top: 1rem;
  }

  .snapshot-grid,
  .boss-grid,
  .move-grid,
  .phase-strip,
  .timeline,
  .task-grid,
  .funnel-flow,
  .script-grid,
  .rule-board,
  .kpi-grid,
  .keyword-grid,
  .visual-board {
    grid-template-columns: 1fr;
  }

  .board-hero,
  .model-shift {
    grid-template-columns: 1fr;
  }

  .progress-ring {
    width: 10rem;
    min-height: 10rem;
    justify-self: center;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .header-actions,
  .toast {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #111111;
  }

  .hero {
    min-height: auto;
    padding: 2rem;
  }

  .hero-image,
  .hero-scrim {
    display: none;
  }

  .hero-content {
    color: #111111;
    margin: 0;
    width: auto;
  }

  .snapshot {
    margin-top: 1rem;
  }

  .snapshot-item,
  .summary-card,
  .move-card,
  .phase-card,
  .task-card,
  .funnel-step,
  .script-card,
  .product-tier,
  .kpi-group,
  .keyword-card,
  .decision-row,
  .rule-item,
  .model-shift,
  .visual-board {
    box-shadow: none;
    break-inside: avoid;
  }
}