:root {
  /* Design System Tokens */
  --bg: #ffffff;
  --ink: #111827;
  --muted: #5f6b7a;
  --line: #e7ebf3;
  --soft: #f6f8fc;
  --blue: #2563eb;
  --violet: #7c3aed;
  --cyan: #06b6d4;
  --shadow: 0 24px 70px rgba(35, 58, 112, 0.14);
  --radius: 8px;
  --container: 1180px;
  --ds-paper: #fbfcff;
  --ds-ink: #141821;
  --ds-muted: #5d6676;
  --ds-line: rgba(20, 24, 33, 0.12);
  --ds-blue: #2764ff;
  --ds-violet: #6952f5;
  --ds-card-bg: rgba(255, 255, 255, 0.9);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #fbfcff 0%, #ffffff 34%, #f8fbff 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(17, 24, 39, 0.025), transparent);
  opacity: 0.55;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(231, 235, 243, 0.82);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 40px, var(--container));
  min-height: 72px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: var(--radius);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.2);
}

.brand-logo {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: block;
  border-radius: 10px;
  object-fit: contain;
  background: transparent;
  box-shadow: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu a {
  padding: 10px 13px;
  border-radius: var(--radius);
  color: #3d4654;
  font-size: 15px;
  transition:
    color 0.2s ease,
    background 0.2s ease;
}

.nav-menu a:hover {
  color: var(--blue);
  background: #f3f6ff;
}

.nav-menu .nav-cta {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--violet));
}

.nav-menu .nav-cta:hover {
  color: #fff;
  background: linear-gradient(135deg, #1d4ed8, #6d28d9);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: #1f2937;
}

.section-pad {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  gap: 54px;
  align-items: center;
  min-height: calc(100vh - 72px);
  padding-top: 70px;
  padding-bottom: 76px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.hero-subtitle {
  margin-bottom: 14px;
  color: #263244;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.24);
}

.btn-secondary {
  color: var(--blue);
  border-color: rgba(37, 99, 235, 0.2);
  background: #fff;
}

.btn-ghost {
  color: #374151;
  background: #f5f7fb;
}

.ds-card {
  border: 1px solid var(--ds-line);
  border-radius: var(--radius);
  background: var(--ds-card-bg);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.05);
}

.level-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(39, 100, 255, 0.14);
  border-radius: 999px;
  color: var(--ds-blue);
  font-size: 12px;
  font-weight: 900;
  background: rgba(39, 100, 255, 0.055);
  white-space: nowrap;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(231, 235, 243, 0.86);
  border-radius: 18px;
  background: #f8fbff;
  box-shadow: var(--shadow);
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.65), transparent 32%),
    linear-gradient(to top, rgba(255, 255, 255, 0.72), transparent 38%);
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.floating-card {
  position: absolute;
  z-index: 2;
  min-width: 168px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 16px 44px rgba(31, 41, 55, 0.12);
  backdrop-filter: blur(16px);
}

.floating-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--violet);
  font-size: 13px;
  font-weight: 800;
}

.floating-card strong {
  color: #1f2937;
  font-size: 15px;
}

.card-one {
  right: 24px;
  bottom: 28px;
}

.card-two {
  left: 24px;
  top: 28px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin-bottom: 0;
}

.path-grid,
.columns-grid {
  display: grid;
  gap: 18px;
}

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

.path-card,
.column-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.05);
}

.path-card {
  position: relative;
  overflow: hidden;
  min-height: 190px;
  padding: 26px;
}

.path-card::before {
  position: absolute;
  right: -34px;
  bottom: -46px;
  width: 120px;
  height: 120px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 50%;
  content: "";
}

.stage-number {
  display: inline-block;
  margin-bottom: 26px;
  color: transparent;
  font-size: 38px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  background-clip: text;
}

.path-card p,
.column-card p,
.codex-text,
.community p {
  color: var(--muted);
  line-height: 1.75;
}

.columns {
  width: 100%;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.columns > .section-heading,
.columns > .columns-grid {
  width: min(100% - 40px, var(--container));
  margin-right: auto;
  margin-left: auto;
}

.columns-grid {
  grid-template-columns: repeat(5, 1fr);
}

.column-card {
  min-height: 220px;
  padding: 24px;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.column-card:hover {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 18px 44px rgba(37, 99, 235, 0.1);
  transform: translateY(-4px);
}

.column-icon {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  place-items: center;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, var(--blue), var(--violet));
}

.codex-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  gap: 34px;
  align-items: center;
  padding: 44px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(124, 58, 237, 0.08)),
    #fff;
  box-shadow: var(--shadow);
}

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

.codex-list span {
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: 0 18px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: var(--radius);
  color: #263244;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.72);
}

.codex-list span::before {
  width: 8px;
  height: 8px;
  margin-right: 12px;
  border-radius: 50%;
  content: "";
  background: linear-gradient(135deg, var(--cyan), var(--violet));
}

.community {
  width: min(100% - 40px, 980px);
}

.community-inner {
  position: relative;
  overflow: hidden;
  padding: 54px;
  border-radius: 18px;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 14% 18%, rgba(255, 255, 255, 0.22), transparent 18rem),
    linear-gradient(135deg, #1d4ed8, #6d28d9 72%, #0891b2);
  box-shadow: 0 24px 70px rgba(37, 99, 235, 0.24);
}

.community-inner::before {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 14px;
  content: "";
  pointer-events: none;
}

.community-inner .eyebrow,
.community-inner p {
  color: rgba(255, 255, 255, 0.82);
}

.community-inner h2,
.community-inner p,
.community-inner .btn {
  position: relative;
  z-index: 1;
}

.community-inner .btn-primary {
  margin-top: 12px;
  background: #fff;
  color: #1d4ed8;
  box-shadow: none;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
  padding: 34px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.tutorial-hero {
  padding-bottom: 48px;
}

.tutorial-hero.compact {
  padding-bottom: 34px;
}

.tutorial-hero h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(44px, 6vw, 74px);
}

.tutorial-hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.tutorial-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.category-chips a,
.tutorial-sidebar nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: var(--radius);
  color: #274268;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.84);
}

.tutorial-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 0;
}

.tutorial-sidebar {
  position: sticky;
  top: 96px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.05);
}

.tutorial-sidebar h2 {
  margin-bottom: 16px;
  font-size: 20px;
}

.tutorial-sidebar nav {
  display: grid;
  gap: 10px;
}

.tutorial-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tutorial-list.wide {
  width: min(100%, 940px);
  margin: 0 auto;
}

.tutorial-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.05);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.tutorial-card:hover {
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: 0 18px 44px rgba(37, 99, 235, 0.1);
  transform: translateY(-4px);
}

.tutorial-card a {
  display: grid;
  min-height: 248px;
  padding: 24px;
}

.tutorial-card-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.tutorial-category {
  width: fit-content;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  background: #eef4ff;
}

.tutorial-card h3 {
  font-size: 24px;
  line-height: 1.35;
}

.tutorial-card p {
  color: var(--muted);
  line-height: 1.75;
}

.tutorial-meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  color: #718096;
  font-size: 14px;
}

.tutorial-meta span,
.article-meta span {
  display: inline-flex;
  align-items: center;
}

.tutorial-meta span + span::before,
.article-meta span + span::before {
  width: 4px;
  height: 4px;
  margin-right: 10px;
  border-radius: 50%;
  content: "";
  background: #a8b3c3;
}

.article-shell {
  max-width: 900px;
}

.article-header {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin-bottom: 20px;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1.12;
}

.article-header p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--blue);
  font-weight: 800;
}

.article-content {
  padding: 36px 0 20px;
  color: #253044;
  font-size: 18px;
  line-height: 1.9;
}

.article-content h1 {
  display: none;
}

.article-content h2 {
  margin-top: 42px;
  margin-bottom: 14px;
  font-size: 30px;
}

.article-content h3 {
  margin-top: 30px;
}

.article-content p,
.article-content li {
  color: #394457;
}

.article-content a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(37, 99, 235, 0.28);
}

.article-content a:hover {
  border-bottom-color: var(--blue);
}

.article-content ul {
  padding-left: 22px;
}

.article-content code {
  padding: 2px 6px;
  border-radius: 6px;
  color: #1d4ed8;
  background: #eef4ff;
}

.article-content pre {
  overflow: auto;
  padding: 18px;
  border-radius: var(--radius);
  background: #101828;
}

.article-content pre code {
  padding: 0;
  color: #eef4ff;
  background: transparent;
}

.copy-block,
.copy-code-block {
  margin: 28px 0;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.16);
  border-radius: 8px;
  background: #111827;
  box-shadow: 0 16px 38px rgba(16, 24, 40, 0.12);
}

.copy-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(238, 244, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
}

.copy-block-header span {
  color: #eef4ff;
  font-size: 14px;
  font-weight: 850;
}

.copy-button,
.copy-code-block .copy-code-button {
  min-width: 64px;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(238, 244, 255, 0.22);
  border-radius: 8px;
  color: #eef4ff;
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 850;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.copy-button:hover,
.copy-code-block .copy-code-button:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.copy-button:disabled,
.copy-code-block .copy-code-button:disabled {
  cursor: default;
  opacity: 0.82;
  transform: none;
}

.article-content .copy-block pre,
.article-content .copy-code-block pre {
  margin: 0;
  padding: 18px 20px 20px;
  border-radius: 0;
  background: transparent;
}

.tutorial-visual-card {
  margin: 34px 0;
  padding: 24px;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 38px rgba(16, 24, 40, 0.08);
}

.tutorial-visual-card > header {
  margin-bottom: 20px;
}

.tutorial-visual-card > header span,
.tutorial-task-grid span,
.tutorial-next-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.tutorial-visual-card h3,
.tutorial-next-actions h3 {
  margin: 0;
  color: #111827;
  font-size: 24px;
  line-height: 1.35;
}

.tutorial-flow ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.tutorial-flow li {
  padding: 20px;
  background: #f9fafb;
}

.tutorial-flow li + li {
  border-left: 1px solid rgba(17, 24, 39, 0.1);
}

.tutorial-flow li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 8px;
  color: #ffffff;
  background: #2563eb;
  font-size: 14px;
  font-weight: 900;
}

.tutorial-flow li strong,
.tutorial-task-grid strong {
  display: block;
  margin-bottom: 8px;
  color: #111827;
  font-size: 18px;
  line-height: 1.45;
}

.tutorial-flow li p,
.tutorial-formula p {
  margin: 0;
  color: #4b5563;
  font-size: 15px;
  line-height: 1.7;
}

.tutorial-formula-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.tutorial-formula-row span {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 8px;
  color: #1f2937;
  background: #f8fbff;
  font-size: 16px;
  font-weight: 850;
}

.tutorial-formula-row b {
  color: #6b7280;
  font-size: 18px;
}

.tutorial-task-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 0;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.tutorial-task-grid > div {
  padding: 20px;
  background: #f9fafb;
}

.tutorial-task-grid > div + div {
  border-left: 1px solid rgba(17, 24, 39, 0.1);
}

.tutorial-task-grid ul {
  display: grid;
  gap: 8px;
  padding-left: 18px;
  margin: 0;
}

.tutorial-task-grid li {
  color: #394457;
  font-size: 15px;
  line-height: 1.55;
}

.tutorial-role-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.tutorial-role-grid > div {
  padding: 22px;
  background: #f9fafb;
}

.tutorial-role-grid > div + div {
  border-left: 1px solid rgba(17, 24, 39, 0.1);
}

.tutorial-role-grid strong {
  display: block;
  margin-bottom: 12px;
  color: #111827;
  font-size: 18px;
}

.tutorial-role-grid ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  margin: 0;
}

.tutorial-role-grid li {
  color: #394457;
  font-size: 15px;
  line-height: 1.6;
}

.tutorial-compare-table {
  overflow-x: auto;
}

.tutorial-compare-table table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.tutorial-compare-table th,
.tutorial-compare-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(17, 24, 39, 0.1);
  text-align: left;
  vertical-align: top;
}

.tutorial-compare-table th {
  color: #111827;
  background: #f3f6fb;
  font-size: 15px;
  font-weight: 900;
}

.tutorial-compare-table td {
  color: #394457;
  font-size: 15px;
  line-height: 1.7;
}

.tutorial-compare-table tr:last-child td {
  border-bottom: 0;
}

.tutorial-next-actions {
  margin: 34px 0;
}

.tutorial-next-actions > div {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.tutorial-next-card {
  display: block;
  min-height: 126px;
  padding: 18px;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: #ffffff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.tutorial-next-card:hover {
  border-color: rgba(37, 99, 235, 0.42);
  box-shadow: 0 12px 30px rgba(16, 24, 40, 0.1);
  transform: translateY(-2px);
}

.tutorial-next-card strong {
  display: block;
  margin-bottom: 10px;
  color: #111827;
  font-size: 17px;
  line-height: 1.45;
}

.tutorial-next-card span {
  margin: 0;
  color: #5f6b7f;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.65;
}

.article-figure {
  margin: 34px 0;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  background: #f8fbff;
}

.article-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-figure figcaption {
  padding: 12px 16px 14px;
  color: #5f6b7f;
  font-size: 14px;
  line-height: 1.65;
  border-top: 1px solid rgba(17, 24, 39, 0.08);
}

.article-content blockquote {
  margin: 28px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--blue);
  background: rgba(37, 99, 235, 0.055);
}

.article-content blockquote p {
  margin: 0;
  color: #253044;
}

.article-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.lesson-shell {
  background:
    linear-gradient(180deg, rgba(251, 252, 255, 0.96) 0%, #ffffff 44%, #f8fbff 100%);
}

.lesson-hero {
  padding-top: 72px;
  padding-bottom: 34px;
}

.lesson-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px;
  align-items: end;
}

.lesson-hero h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
}

.lesson-hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.85;
}

.lesson-rank-card {
  padding: 24px 0 0 24px;
  border-top: 1px solid rgba(17, 24, 39, 0.14);
  border-left: 1px solid rgba(17, 24, 39, 0.14);
}

.lesson-rank-card span,
.lesson-meta-grid span,
.lesson-sidebar span,
.lesson-related-card span {
  display: block;
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.lesson-rank-card strong {
  display: block;
  margin-bottom: 16px;
  color: #111827;
  font-size: 34px;
  line-height: 1.15;
}

.lesson-rank-card p {
  margin-bottom: 0;
  font-size: 15px;
}

.lesson-meta-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.55fr 0.72fr;
  margin-top: 44px;
  border-top: 1px solid rgba(17, 24, 39, 0.12);
  border-bottom: 1px solid rgba(17, 24, 39, 0.12);
}

.lesson-meta-grid div {
  padding: 20px 22px;
}

.lesson-meta-grid div + div {
  border-left: 1px solid rgba(17, 24, 39, 0.1);
}

.lesson-meta-grid strong {
  display: block;
  color: #111827;
  font-size: 18px;
  line-height: 1.6;
}

.lesson-body {
  display: grid;
  grid-template-columns: 260px minmax(0, 780px);
  gap: 64px;
  align-items: start;
  padding-top: 34px;
}

.lesson-sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 26px;
  padding-top: 8px;
}

.lesson-sidebar div {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(17, 24, 39, 0.1);
}

.lesson-sidebar p {
  margin: 0;
  color: #4b5563;
  font-size: 15px;
  line-height: 1.75;
}

.lesson-practice,
.lesson-related,
.lesson-join {
  border-top: 1px solid rgba(17, 24, 39, 0.12);
}

.lesson-practice {
  display: grid;
  grid-template-columns: minmax(0, 0.65fr) minmax(360px, 1fr);
  gap: 56px;
  align-items: start;
}

.lesson-practice h2,
.lesson-related h2,
.lesson-join h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.16;
}

.lesson-practice > div p {
  color: var(--muted);
  line-height: 1.8;
}

.lesson-practice ol {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
  border-top: 1px solid rgba(17, 24, 39, 0.1);
}

.lesson-practice li {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(17, 24, 39, 0.1);
  color: #253044;
  font-size: 17px;
  line-height: 1.75;
}

.lesson-practice li span {
  color: transparent;
  font-size: 28px;
  font-weight: 860;
  line-height: 1;
  background: linear-gradient(135deg, #111827, var(--blue), var(--violet));
  background-clip: text;
}

.lesson-section-title {
  margin-bottom: 30px;
}

.lesson-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(17, 24, 39, 0.12);
  border-bottom: 1px solid rgba(17, 24, 39, 0.12);
}

.lesson-related-card {
  min-height: 220px;
  padding: 26px 22px;
  transition: background 0.2s ease;
}

.lesson-related-card + .lesson-related-card {
  border-left: 1px solid rgba(17, 24, 39, 0.1);
}

.lesson-related-card:hover {
  background: rgba(37, 99, 235, 0.055);
}

.lesson-related-card strong {
  display: block;
  margin-bottom: 14px;
  color: #111827;
  font-size: 21px;
  line-height: 1.45;
}

.lesson-related-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.lesson-join {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: end;
  padding-bottom: 104px;
}

.lesson-join p {
  max-width: 660px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.82;
}

.content-map-hero {
  padding-bottom: 42px;
}

.content-map-hero h1 {
  max-width: 920px;
  margin-bottom: 20px;
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1.08;
}

.content-map-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.8;
}

.content-map-shell {
  display: grid;
  gap: 72px;
  padding-top: 20px;
}

.map-level {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 48px;
  border-top: 1px solid rgba(17, 24, 39, 0.14);
}

.map-level > header {
  grid-column: 1;
  grid-row: 1;
  position: sticky;
  top: 96px;
  align-self: start;
  padding-top: 28px;
}

.map-level h2 {
  margin: 16px 0 8px;
  font-size: clamp(30px, 4vw, 48px);
}

.map-level header p {
  color: var(--muted);
}

.map-section {
  grid-column: 2;
  padding: 28px 0;
  border-bottom: 1px solid rgba(17, 24, 39, 0.1);
}

.map-section h3 {
  margin-bottom: 18px;
  color: #111827;
  font-size: 22px;
}

.map-section ol {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
}

.map-section a,
.map-section .map-disabled {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 74px;
  gap: 18px;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid rgba(17, 24, 39, 0.07);
}

.map-section a span,
.map-section .map-disabled span {
  color: var(--blue);
  font-weight: 900;
}

.map-section a strong,
.map-section .map-disabled strong {
  color: #1f2937;
  font-size: 17px;
}

.map-section a em,
.map-section .map-disabled em {
  color: #7b8494;
  font-size: 13px;
  font-style: normal;
  text-align: right;
}

.map-section .map-disabled {
  opacity: 0.62;
}

.static-page,
.not-found {
  padding-top: 84px;
  padding-bottom: 104px;
}

.static-page h1,
.not-found h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1.08;
}

.static-page > p,
.not-found > p {
  max-width: 740px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.82;
}

.static-page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.static-page-grid article {
  padding: 26px;
}

.static-page-grid article span {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--blue);
  font-weight: 900;
}

.static-page-grid h2 {
  margin-bottom: 12px;
  font-size: 26px;
}

.static-page-grid p {
  color: var(--muted);
  line-height: 1.78;
}

.trust-page {
  padding-top: 72px;
}

.trust-page .eyebrow {
  color: #2563eb;
}

.trust-lead {
  max-width: 820px;
}

.trust-story,
.community-layout,
.qr-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 18px;
  margin-top: 42px;
}

.trust-story-main,
.trust-principles,
.community-info,
.qr-card,
.community-rules,
.trust-mission {
  padding: 30px;
}

.trust-story-main h2,
.trust-principles h2,
.community-info h2,
.qr-card h2,
.community-rules h2,
.trust-mission h2,
.future-events h2 {
  margin-bottom: 14px;
  font-size: 28px;
}

.trust-story-main p,
.trust-principles li,
.community-info li,
.community-rules li,
.trust-mission p,
.qr-card p,
.future-events p {
  color: var(--muted);
  line-height: 1.78;
}

.trust-story-main p {
  margin-bottom: 16px;
}

.trust-story-main p:last-child,
.trust-mission p,
.qr-card p,
.future-events p {
  margin-bottom: 0;
}

.trust-principles ul,
.community-info ul,
.community-rules ol {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 20px;
}

.trust-principles .btn {
  margin-top: 26px;
}

.trust-timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.trust-timeline article {
  min-height: 190px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.92);
}

.trust-timeline span,
.future-events span {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
}

.trust-timeline h2 {
  margin-bottom: 10px;
  font-size: 22px;
}

.trust-timeline p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.trust-mission,
.community-rules,
.future-events {
  margin-top: 18px;
}

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

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

.qr-card {
  text-align: center;
}

.qr-image-wrap {
  display: grid;
  width: min(100%, 300px);
  margin: 0 auto 22px;
  place-items: center;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.qr-image {
  display: block;
  width: min(100%, 280px);
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 14px;
}

.qr-meta {
  margin: 4px 0 12px;
  color: var(--ink);
  font-weight: 800;
}

.qr-note {
  max-width: 360px;
  margin: 0 auto;
}

.qr-placeholder {
  display: grid;
  min-height: 230px;
  margin-bottom: 22px;
  place-items: center;
  border: 1px dashed rgba(37, 99, 235, 0.32);
  border-radius: var(--radius);
  color: #2563eb;
  font-weight: 900;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(124, 58, 237, 0.04)),
    #fff;
}

.future-events-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.future-events-grid article {
  padding: 24px;
}

.future-events-grid h3 {
  font-size: 21px;
}

/* About page */
.about-page {
  width: min(100% - 40px, 1040px);
  margin: 0 auto;
  padding: 74px 0 96px;
}

.about-hero {
  max-width: 880px;
  padding: 22px 0 58px;
  border-bottom: 1px solid rgba(20, 24, 33, 0.1);
}

.about-hero h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(44px, 5vw, 56px);
  line-height: 1.12;
  letter-spacing: 0;
}

.about-subtitle {
  margin-bottom: 18px;
  color: #253044;
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 800;
  line-height: 1.45;
}

.about-intro {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.86;
}

.about-trust-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.about-trust-summary span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 999px;
  color: #4b5563;
  font-size: 14px;
  line-height: 1.4;
  background: rgba(255, 255, 255, 0.76);
}

.about-trust-summary strong {
  margin-right: 6px;
  color: #111827;
  font-weight: 900;
}

.about-section {
  padding: 46px 0;
  border-bottom: 1px solid rgba(20, 24, 33, 0.09);
}

.about-section h2,
.about-quote h2,
.about-cta h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3vw, 34px);
  line-height: 1.22;
  letter-spacing: 0;
}

.about-section p,
.about-quote p,
.about-cta p {
  max-width: 820px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.84;
}

.about-section p {
  margin-bottom: 14px;
}

.about-section p:last-child,
.about-quote p:last-child,
.about-cta p {
  margin-bottom: 0;
}

.about-story-card {
  margin-top: 34px;
  padding: 32px;
  border: 1px solid rgba(20, 24, 33, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 16px 42px rgba(31, 41, 55, 0.055);
}

.about-timeline {
  margin-top: 24px;
  border-top: 1px solid rgba(20, 24, 33, 0.09);
}

.about-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 28px;
  padding: 22px 0 22px 28px;
  border-bottom: 1px solid rgba(20, 24, 33, 0.08);
}

.about-timeline-item::before {
  position: absolute;
  top: 31px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid rgba(37, 99, 235, 0.28);
  border-radius: 999px;
  content: "";
  background: #fff;
}

.about-timeline-item span {
  color: var(--blue);
  font-size: 15px;
  font-weight: 900;
  line-height: 1.6;
}

.about-timeline-item h3 {
  margin-bottom: 8px;
  color: #111827;
  font-size: 20px;
  line-height: 1.35;
}

.about-timeline-item p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.78;
}

.about-timeline-item .about-insight {
  margin-top: 8px;
  color: #3b4657;
  font-size: 15px;
}

.about-insight::before {
  color: var(--blue);
  font-weight: 900;
  content: "认知：";
}

.about-not-do-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.about-not-do-grid > div {
  padding: 24px;
  border: 1px solid rgba(20, 24, 33, 0.09);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
}

.about-not-do-grid h3 {
  margin-bottom: 14px;
  color: #111827;
  font-size: 20px;
}

.about-not-do-grid ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
}

.about-not-do-grid li {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.about-belief-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.about-belief-grid article {
  min-height: 88px;
  padding: 18px 20px;
  border: 1px solid rgba(20, 24, 33, 0.09);
  border-radius: var(--radius);
  color: #253044;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  background: rgba(255, 255, 255, 0.7);
}

.about-belief-grid-soft article {
  background: rgba(246, 248, 252, 0.72);
}

.about-quote {
  margin-top: 48px;
  padding: 30px 0 30px 28px;
  border-left: 3px solid var(--blue);
  border-top: 1px solid rgba(20, 24, 33, 0.08);
  border-bottom: 1px solid rgba(20, 24, 33, 0.08);
}

.about-quote p {
  font-size: 18px;
}

.about-cta {
  margin-top: 46px;
  padding: 32px;
  border-radius: var(--radius);
  color: #fff;
  background: #111827;
  box-shadow: 0 20px 60px rgba(17, 24, 39, 0.12);
}

.about-cta h2,
.about-cta p {
  color: #fff;
}

.about-cta p {
  opacity: 0.78;
}

.about-cta .hero-actions {
  margin-top: 24px;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 34px;
}

.pagination a {
  display: grid;
  min-width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: #3d4654;
  font-weight: 800;
  background: #fff;
}

.pagination a.is-active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--blue), var(--violet));
}

.home-v2 {
  --ink: #141821;
  --muted: #5d6676;
  --line: #e8ebf0;
  --blue: #2764ff;
  --violet: #6952f5;
  --jade: #6c817b;
  --paper: #fbfcff;
  background:
    linear-gradient(180deg, #fbfcff 0%, #ffffff 42%, #f7f9fc 100%);
}

.home-v2::before {
  background:
    linear-gradient(110deg, transparent 0%, rgba(20, 24, 33, 0.026) 48%, transparent 74%),
    linear-gradient(180deg, rgba(39, 100, 255, 0.035), transparent 420px);
  opacity: 1;
}

.home-v2 .site-header {
  border-bottom-color: rgba(20, 24, 33, 0.08);
  background: rgba(251, 252, 255, 0.82);
}

.home-v2 .brand {
  font-weight: 750;
}

.home-v2 .brand-mark {
  color: #ffffff;
  background: #141821;
  box-shadow: none;
}

.home-v2 .nav-menu {
  gap: 4px;
}

.home-v2 .nav-menu a {
  color: #4b5563;
  background: transparent;
}

.home-v2 .nav-menu a:hover {
  color: #141821;
  background: rgba(20, 24, 33, 0.045);
}

.home-v2 .nav-menu .nav-cta {
  color: #ffffff;
  background: #141821;
}

.home-v2 .nav-menu .nav-cta:hover {
  color: #ffffff;
  background: #05070d;
}

.home-v2 .btn {
  min-height: 46px;
  border-radius: 7px;
  box-shadow: none;
}

.home-v2 .btn-primary {
  color: #ffffff;
  background: #141821;
}

.home-v2 .btn-secondary {
  color: #141821;
  border-color: rgba(20, 24, 33, 0.16);
  background: rgba(255, 255, 255, 0.82);
}

.home-v2 .btn-ghost {
  color: #324154;
  border-color: rgba(39, 100, 255, 0.16);
  background: rgba(39, 100, 255, 0.055);
}

.v2-hero,
.v2-section {
  width: min(100% - 48px, 1180px);
  margin: 0 auto;
}

.v2-hero {
  padding: 54px 0 28px;
}

.v2-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.58fr);
  gap: 48px;
  align-items: center;
}

.v2-kicker {
  margin: 0 0 14px;
  color: #51615d;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

.v2-hero h1 {
  max-width: 660px;
  margin: 0 0 14px;
  color: #0f141d;
  font-size: clamp(58px, 8vw, 96px);
  font-weight: 780;
  line-height: 1;
  letter-spacing: 0;
}

.v2-hero-subtitle {
  margin: 0 0 18px;
  color: #141821;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 760;
  line-height: 1.25;
}

.v2-hero-lead {
  max-width: 620px;
  margin-bottom: 24px;
  color: #3d4654;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.72;
}

.v2-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.v2-hero-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 22px;
  color: #657080;
  font-size: 14px;
}

.v2-hero-status span {
  font-weight: 800;
}

.v2-hero-status a {
  padding: 7px 10px;
  border: 1px solid rgba(20, 24, 33, 0.1);
  border-radius: 999px;
  color: #263244;
  background: rgba(255, 255, 255, 0.72);
}

.v2-founder-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border: 1px solid rgba(20, 24, 33, 0.1);
  border-radius: 7px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(247, 249, 253, 0.86)),
    radial-gradient(circle at 88% 12%, rgba(39, 100, 255, 0.12), transparent 34%);
  box-shadow: 0 24px 72px rgba(20, 24, 33, 0.1);
}

.v2-founder-card::before {
  position: absolute;
  top: 0;
  right: 28px;
  left: 28px;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(39, 100, 255, 0.72), rgba(105, 82, 245, 0.54), transparent);
}

.v2-card-kicker {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.v2-founder-card h2 {
  margin: 0 0 24px;
  color: #111827;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.16;
}

.v2-founder-card ol {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.v2-founder-card li {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 18px;
  padding: 13px 0;
  border-top: 1px solid rgba(20, 24, 33, 0.08);
}

.v2-founder-card li:last-child {
  border-bottom: 1px solid rgba(20, 24, 33, 0.08);
}

.v2-founder-card li span {
  color: #6b7280;
  font-size: 13px;
  font-weight: 900;
}

.v2-founder-card li strong {
  color: #1f2937;
  font-size: 16px;
  line-height: 1.45;
}

.v2-hero-visual {
  position: relative;
  margin: 0;
}

.v2-hero-visual::before {
  position: absolute;
  right: 7%;
  bottom: -22px;
  left: 14%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(20, 24, 33, 0.16), transparent);
}

.v2-hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 7px;
  object-fit: cover;
  box-shadow: 0 28px 90px rgba(20, 24, 33, 0.12);
}

.v2-hero-visual figcaption {
  max-width: 420px;
  margin: 18px 0 0 auto;
  color: #6a7280;
  font-size: 14px;
  line-height: 1.8;
  text-align: right;
}

.v2-manifesto {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 18px;
  border-top: 1px solid rgba(20, 24, 33, 0.1);
  border-bottom: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-manifesto span {
  padding: 18px 20px;
  color: #404957;
  font-size: 15px;
  text-align: center;
}

.v2-manifesto span + span {
  border-left: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-section {
  padding: 86px 0;
}

.v2-system {
  padding-top: 54px;
}

.v2-section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.v2-section-heading.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 0.7fr);
  gap: 48px;
  max-width: none;
  align-items: end;
}

.v2-section h2 {
  margin-bottom: 18px;
  color: #10141d;
  font-size: clamp(34px, 4.5vw, 58px);
  font-weight: 760;
  line-height: 1.12;
}

.v2-section h3 {
  color: #151b27;
  font-size: 22px;
  line-height: 1.42;
}

.v2-section p {
  color: var(--muted);
  line-height: 1.82;
}

.v2-system-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(20, 24, 33, 0.12);
  border-bottom: 1px solid rgba(20, 24, 33, 0.12);
}

.v2-system-grid article {
  min-height: 240px;
  padding: 30px 26px;
}

.v2-system-grid article + article {
  border-left: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-system-grid span {
  display: inline-flex;
  margin-bottom: 44px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 900;
}

.v2-path {
  border-top: 1px solid rgba(20, 24, 33, 0.08);
}

.v2-path-list {
  display: grid;
}

.v2-path-list article {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 36px;
  padding: 28px 0;
  border-top: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-path-list article:last-child {
  border-bottom: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-path-list span {
  color: transparent;
  font-size: 44px;
  font-weight: 860;
  line-height: 1;
  background: linear-gradient(135deg, #141821, #2764ff 58%, #6952f5);
  background-clip: text;
}

.v2-path-list h3 {
  margin-bottom: 8px;
}

.v2-culture {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1.12fr);
  gap: 64px;
  align-items: center;
}

.v2-culture-copy p:last-child {
  max-width: 600px;
  font-size: 18px;
}

.v2-culture-principles {
  border-top: 1px solid rgba(20, 24, 33, 0.12);
}

.v2-culture-principles p {
  margin: 0;
  padding: 28px 0;
  border-bottom: 1px solid rgba(20, 24, 33, 0.12);
  color: #141821;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 720;
  line-height: 1.25;
}

.v2-founder {
  width: 100%;
  max-width: none;
  background: #10141d;
}

.v2-founder-note {
  width: min(100% - 48px, 980px);
  margin: 0 auto;
  padding: 96px 0;
}

.v2-founder-note .v2-kicker {
  color: rgba(255, 255, 255, 0.58);
}

.v2-founder-note h2 {
  color: #ffffff;
}

.v2-founder-note p {
  max-width: 800px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 18px;
}

.v2-founder-note p + p {
  margin-top: 18px;
}

.v2-codex-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(20, 24, 33, 0.12);
  border-bottom: 1px solid rgba(20, 24, 33, 0.12);
}

.v2-codex-grid a {
  min-height: 210px;
  padding: 28px 22px;
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.v2-codex-grid a + a {
  border-left: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-codex-grid a:hover {
  background: rgba(39, 100, 255, 0.055);
}

.v2-codex-grid span {
  display: block;
  margin-bottom: 56px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
}

.v2-codex-grid strong {
  display: block;
  color: #141821;
  font-size: 20px;
  line-height: 1.5;
}

.v2-community {
  padding-bottom: 112px;
}

.v2-community-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) auto;
  gap: 40px;
  align-items: end;
  padding: 52px 0 0;
  border-top: 1px solid rgba(20, 24, 33, 0.14);
}

.v2-community-inner h2 {
  max-width: 720px;
}

.v2-community-inner p {
  max-width: 600px;
  font-size: 18px;
}

/* Homepage V5 */
.home-v2 {
  background:
    linear-gradient(180deg, #fbfcff 0%, #ffffff 34%, #f7f9fc 100%);
}

.home-v2::before {
  background:
    linear-gradient(120deg, transparent 0%, rgba(20, 24, 33, 0.024) 46%, transparent 72%),
    linear-gradient(180deg, rgba(39, 100, 255, 0.03), transparent 360px);
}

.v2-hero {
  display: flex;
  align-items: center;
  min-height: min(720px, calc(100vh - 72px));
  padding: 48px 0;
}

.v2-hero-inner {
  width: 100%;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.66fr);
  gap: 54px;
}

.v2-hero h1 {
  max-width: none;
  margin-bottom: 16px;
  font-size: clamp(62px, 7.4vw, 104px);
}

.v2-hero-subtitle {
  margin-bottom: 18px;
  font-size: clamp(24px, 2.7vw, 34px);
}

.v2-hero-lead {
  max-width: 680px;
  margin-bottom: 28px;
  font-size: clamp(17px, 1.55vw, 21px);
}

.v2-system-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border: 1px solid rgba(20, 24, 33, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 254, 0.9)),
    linear-gradient(180deg, rgba(39, 100, 255, 0.08), transparent 42%);
  box-shadow: 0 24px 70px rgba(20, 24, 33, 0.09);
}

.v2-system-card::before {
  position: absolute;
  top: 0;
  right: 28px;
  left: 28px;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(39, 100, 255, 0.7), rgba(105, 82, 245, 0.42), transparent);
}

.v2-system-card h2 {
  margin-bottom: 22px;
  font-size: clamp(26px, 3vw, 34px);
}

.v2-system-steps {
  display: grid;
  gap: 10px;
}

.v2-system-steps article {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(20, 24, 33, 0.08);
}

.v2-system-steps article:last-child {
  border-bottom: 1px solid rgba(20, 24, 33, 0.08);
}

.v2-system-steps span {
  grid-row: span 2;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.v2-system-steps strong {
  color: #141821;
  font-size: 17px;
  line-height: 1.35;
}

.v2-system-steps p {
  margin: 0;
  color: #5d6676;
  font-size: 14px;
  line-height: 1.65;
}

.v2-system-card .btn {
  width: 100%;
  margin-top: 22px;
}

.v2-start {
  padding-top: 30px;
}

.v2-start-grid,
.v2-columns-grid,
.v2-latest-grid {
  display: grid;
  border-top: 1px solid rgba(20, 24, 33, 0.12);
  border-bottom: 1px solid rgba(20, 24, 33, 0.12);
}

.v2-start-grid {
  grid-template-columns: repeat(4, 1fr);
}

.v2-start-grid a,
.v2-columns-grid a,
.v2-latest-card {
  min-height: 220px;
  padding: 28px 24px;
  transition:
    background 0.2s ease,
    transform 0.2s ease;
}

.v2-start-grid a + a,
.v2-columns-grid a + a,
.v2-latest-card + .v2-latest-card {
  border-left: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-start-grid a:hover,
.v2-columns-grid a:hover,
.v2-latest-card:hover {
  background: rgba(39, 100, 255, 0.045);
}

.v2-start-grid span {
  display: inline-flex;
  margin-bottom: 46px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 900;
}

.v2-start-grid strong {
  display: inline-flex;
  margin-top: 12px;
  color: #141821;
  font-size: 14px;
  font-weight: 900;
}

.v2-columns-grid {
  grid-template-columns: repeat(3, 1fr);
}

.v2-columns-grid a:nth-child(4) {
  border-left: 0;
}

.v2-columns-grid a:nth-child(n + 4) {
  border-top: 1px solid rgba(20, 24, 33, 0.1);
}

.v2-latest-grid {
  grid-template-columns: repeat(3, 1fr);
}

.v2-latest-card span {
  display: block;
  margin-bottom: 42px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.v2-latest-card h3,
.v2-columns-grid h3 {
  font-size: 23px;
}

.v2-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 28px 0;
}

.v2-founder-light {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: end;
  padding-top: 44px;
  border-top: 1px solid rgba(20, 24, 33, 0.12);
}

.v2-founder-light h2 {
  font-size: clamp(30px, 4vw, 48px);
}

.v2-founder-light p {
  max-width: 680px;
  font-size: 18px;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-block;
  }

  .nav-menu {
    position: absolute;
    top: 72px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow);
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu a {
    padding: 13px 14px;
  }

  .hero,
  .codex-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .v2-hero,
  .v2-section {
    width: min(100% - 36px, 1180px);
  }

  .v2-hero-inner,
  .v2-section-heading.split,
  .v2-culture,
  .v2-community-inner {
    grid-template-columns: 1fr;
  }

  .v2-hero-inner {
    gap: 34px;
    min-height: auto;
  }

  .v2-system-grid,
  .v2-codex-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .v2-system-grid article:nth-child(3),
  .v2-codex-grid a:nth-child(3) {
    border-left: 0;
  }

  .v2-system-grid article:nth-child(n + 3),
  .v2-codex-grid a:nth-child(n + 3) {
    border-top: 1px solid rgba(20, 24, 33, 0.1);
  }

  .lesson-hero-grid,
  .lesson-body,
  .lesson-practice,
  .lesson-join {
    grid-template-columns: 1fr;
  }

  .lesson-rank-card {
    padding: 22px 0 0;
    border-left: 0;
  }

  .lesson-meta-grid {
    grid-template-columns: 1fr;
  }

  .lesson-meta-grid div + div {
    border-top: 1px solid rgba(17, 24, 39, 0.1);
    border-left: 0;
  }

  .lesson-sidebar {
    position: static;
    grid-template-columns: repeat(3, 1fr);
  }

  .lesson-related-grid {
    grid-template-columns: 1fr;
  }

  .lesson-related-card + .lesson-related-card {
    border-top: 1px solid rgba(17, 24, 39, 0.1);
    border-left: 0;
  }

  .tutorial-flow ol,
  .tutorial-task-grid,
  .tutorial-role-grid,
  .tutorial-next-actions > div {
    grid-template-columns: 1fr;
  }

  .tutorial-flow li + li,
  .tutorial-task-grid > div + div,
  .tutorial-role-grid > div + div {
    border-top: 1px solid rgba(17, 24, 39, 0.1);
    border-left: 0;
  }

  .map-level {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .map-level > header {
    grid-column: auto;
    grid-row: auto;
    position: static;
  }

  .map-section {
    grid-column: auto;
  }

  .trust-story,
  .community-layout,
  .qr-grid,
  .future-events-grid {
    grid-template-columns: 1fr;
  }

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

  .about-page {
    width: min(100% - 36px, 1040px);
  }

  .about-belief-grid {
    grid-template-columns: 1fr;
  }

  .about-not-do-grid {
    grid-template-columns: 1fr;
  }

  .path-grid,
  .columns-grid,
  .tutorial-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .tutorial-layout {
    grid-template-columns: 1fr;
  }

  .tutorial-sidebar {
    position: static;
  }

  .tutorial-sidebar nav {
    display: flex;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .nav-shell,
  .section-pad,
  .columns > .section-heading,
  .columns > .columns-grid,
  .site-footer {
    width: min(100% - 28px, var(--container));
  }

  .section-pad {
    padding: 64px 0;
  }

  .brand-logo {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
  }

  .v2-hero,
  .v2-section,
  .v2-founder-note {
    width: min(100% - 28px, 1180px);
  }

  .v2-hero {
    padding: 36px 0 20px;
  }

  .v2-hero h1 {
    font-size: clamp(48px, 14vw, 70px);
  }

  .v2-hero-subtitle {
    margin-bottom: 14px;
    font-size: 23px;
  }

  .v2-hero-lead {
    margin-bottom: 20px;
    font-size: 17px;
    line-height: 1.68;
  }

  .v2-hero-lead br {
    display: none;
  }

  .v2-hero-actions,
  .v2-community-inner,
  .v2-community-inner .btn {
    width: 100%;
  }

  .v2-hero-actions .btn {
    width: 100%;
  }

  .trust-page {
    padding-top: 56px;
  }

  .trust-story-main,
  .trust-principles,
  .community-info,
  .qr-card,
  .community-rules,
  .trust-mission {
    padding: 22px;
  }

  .trust-timeline {
    grid-template-columns: 1fr;
  }

  .trust-timeline article {
    min-height: auto;
    padding: 22px;
  }

  .qr-placeholder {
    min-height: 190px;
  }

  .about-page {
    width: min(100% - 28px, 1040px);
    padding: 54px 0 72px;
  }

  .about-hero {
    padding: 10px 0 42px;
  }

  .about-hero h1 {
    font-size: clamp(40px, 12vw, 50px);
  }

  .about-subtitle {
    font-size: 21px;
  }

  .about-intro,
  .about-section p,
  .about-quote p,
  .about-cta p {
    font-size: 16px;
  }

  .about-section {
    padding: 38px 0;
  }

  .about-story-card,
  .about-cta {
    padding: 24px 20px;
  }

  .about-timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 20px 0 20px 22px;
  }

  .about-trust-summary span {
    width: 100%;
  }

  .about-timeline-item::before {
    top: 27px;
  }

  .about-not-do-grid > div {
    padding: 20px;
  }

  .about-quote {
    padding: 24px 0 24px 20px;
  }

  .about-cta .hero-actions,
  .about-cta .btn {
    width: 100%;
  }

  .v2-hero-status {
    align-items: flex-start;
    margin-top: 18px;
  }

  .v2-hero-status span {
    width: 100%;
  }

  .v2-founder-card {
    padding: 24px 20px;
  }

  .v2-founder-card li {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 12px;
  }

  .v2-hero-visual figcaption {
    margin-left: 0;
    text-align: left;
  }

  .v2-manifesto,
  .v2-system-grid,
  .v2-codex-grid {
    grid-template-columns: 1fr;
  }

  .v2-manifesto span {
    text-align: left;
  }

  .v2-manifesto span + span,
  .v2-system-grid article + article,
  .v2-codex-grid a + a {
    border-left: 0;
  }

  .v2-manifesto span + span,
  .v2-system-grid article + article,
  .v2-codex-grid a + a {
    border-top: 1px solid rgba(20, 24, 33, 0.1);
  }

  .v2-section {
    padding: 70px 0;
  }

  .v2-section-heading,
  .v2-section-heading.split {
    gap: 10px;
    margin-bottom: 30px;
  }

  .v2-system-grid article,
  .v2-codex-grid a {
    min-height: auto;
    padding: 24px 0;
  }

  .v2-system-grid span,
  .v2-codex-grid span {
    margin-bottom: 28px;
  }

  .v2-path-list article {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 0;
  }

  .v2-culture {
    gap: 28px;
  }

  .v2-founder {
    width: 100%;
  }

  .v2-founder-note {
    padding: 70px 0;
  }

  .lesson-hero {
    padding-top: 52px;
  }

  .lesson-hero-grid,
  .lesson-body,
  .lesson-practice,
  .lesson-join {
    gap: 28px;
  }

  .lesson-hero h1 {
    font-size: clamp(38px, 11vw, 54px);
  }

  .lesson-meta-grid div {
    padding: 18px 0;
  }

  .lesson-sidebar {
    grid-template-columns: 1fr;
  }

  .lesson-practice li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .lesson-related-card {
    min-height: auto;
    padding: 22px 0;
  }

  .lesson-join {
    padding-bottom: 70px;
  }

  .lesson-join .btn {
    width: 100%;
  }

  .tutorial-visual-card {
    padding: 18px;
  }

  .tutorial-formula-row {
    align-items: stretch;
  }

  .tutorial-formula-row span {
    flex: 1 1 44%;
    justify-content: center;
  }

  .tutorial-formula-row b {
    display: none;
  }

  .copy-block-header {
    position: sticky;
    left: 0;
  }

  .content-map-shell {
    gap: 50px;
  }

  .map-section a,
  .map-section .map-disabled {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .map-section a em,
  .map-section .map-disabled em {
    grid-column: 2;
    text-align: left;
  }

  .static-page-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 34px;
    padding-top: 48px;
  }

  .hero-actions,
  .site-footer {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-visual {
    border-radius: 12px;
  }

  .floating-card {
    position: static;
    margin: 12px;
  }

  .hero-visual::after {
    display: none;
  }

  .path-grid,
  .columns-grid,
  .tutorial-list,
  .codex-list {
    grid-template-columns: 1fr;
  }

  .path-card,
  .column-card {
    min-height: auto;
  }

  .codex-panel,
  .community-inner {
    padding: 30px 22px;
    border-radius: 12px;
  }

  .tutorial-card a {
    min-height: auto;
  }

  .article-content {
    font-size: 17px;
  }

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

  .community-inner::before {
    inset: 12px;
  }
}

@media (max-width: 980px) {
  .v2-hero {
    display: block;
    min-height: auto;
    padding: 42px 0 28px;
  }

  .v2-system-card {
    max-width: 620px;
  }

  .v2-start-grid,
  .v2-columns-grid,
  .v2-latest-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .v2-start-grid a:nth-child(3),
  .v2-columns-grid a:nth-child(3),
  .v2-columns-grid a:nth-child(5),
  .v2-latest-card:nth-child(3) {
    border-left: 0;
  }

  .v2-columns-grid a:nth-child(4),
  .v2-columns-grid a:nth-child(6) {
    border-left: 1px solid rgba(20, 24, 33, 0.1);
  }

  .v2-start-grid a:nth-child(n + 3),
  .v2-columns-grid a:nth-child(n + 3),
  .v2-latest-card:nth-child(n + 3) {
    border-top: 1px solid rgba(20, 24, 33, 0.1);
  }

  .v2-founder-light {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 640px) {
  .v2-hero {
    padding: 34px 0 20px;
  }

  .v2-hero h1 {
    font-size: clamp(48px, 13vw, 68px);
  }

  .v2-hero-subtitle {
    font-size: 22px;
  }

  .v2-system-card {
    padding: 24px 20px;
  }

  .v2-system-steps article {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .v2-start-grid,
  .v2-columns-grid,
  .v2-latest-grid {
    grid-template-columns: 1fr;
  }

  .v2-start-grid a,
  .v2-columns-grid a,
  .v2-latest-card {
    min-height: auto;
    padding: 24px 0;
  }

  .v2-start-grid a + a,
  .v2-columns-grid a + a,
  .v2-latest-card + .v2-latest-card {
    border-left: 0;
    border-top: 1px solid rgba(20, 24, 33, 0.1);
  }

  .v2-start-grid span,
  .v2-latest-card span {
    margin-bottom: 24px;
  }

  .v2-founder-light .btn {
    width: 100%;
  }
}

/* Homepage V6 */
.home-v2 {
  --blue: #2563eb;
  --violet: #2563eb;
  background: #ffffff;
}

.home-v2::before {
  background:
    linear-gradient(180deg, rgba(37, 99, 235, 0.028), transparent 360px),
    linear-gradient(90deg, transparent, rgba(17, 24, 39, 0.018), transparent);
}

.home-v2 .brand-mark {
  background: #111827;
}

.v2-hero,
.v2-section {
  width: min(100% - 48px, 1180px);
}

.v2-hero {
  display: flex;
  align-items: center;
  min-height: min(608px, calc(100vh - 72px));
  padding: 42px 0 34px;
}

.v2-hero-inner {
  width: 100%;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.72fr);
  gap: 52px;
  align-items: center;
}

.v2-kicker {
  margin-bottom: 12px;
  color: #566273;
  font-size: 14px;
  font-weight: 800;
}

.v2-hero h1 {
  margin-bottom: 16px;
  font-size: clamp(52px, 6.2vw, 82px);
  font-weight: 780;
  line-height: 1.02;
}

.v2-hero-subtitle {
  margin-bottom: 16px;
  color: #1f2937;
  font-size: clamp(22px, 2.2vw, 30px);
  font-weight: 740;
}

.v2-hero-lead {
  max-width: 650px;
  margin-bottom: 24px;
  color: #4b5563;
  font-size: clamp(17px, 1.45vw, 19px);
  line-height: 1.78;
}

.v2-quick-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.v2-quick-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 999px;
  color: #4b5563;
  font-size: 13px;
  font-weight: 760;
  background: rgba(255, 255, 255, 0.78);
}

.v2-learning-card {
  padding: 26px;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 22px 60px rgba(17, 24, 39, 0.08);
}

.v2-learning-card h2 {
  margin-bottom: 18px;
  color: #111827;
  font-size: 28px;
  line-height: 1.2;
}

.v2-learning-list {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(17, 24, 39, 0.08);
}

.v2-learning-list a {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 5px 14px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
}

.v2-learning-list span {
  grid-row: span 2;
  color: #2563eb;
  font-size: 13px;
  font-weight: 900;
}

.v2-learning-list strong {
  color: #111827;
  font-size: 16px;
}

.v2-learning-list p {
  margin: 0;
  color: #647084;
  font-size: 14px;
  line-height: 1.62;
}

.v2-section {
  padding: 66px 0;
}

.v2-section-heading {
  max-width: 740px;
  margin-bottom: 30px;
}

.v2-section h2 {
  margin-bottom: 12px;
  color: #111827;
  font-size: clamp(30px, 3.5vw, 44px);
  line-height: 1.18;
}

.v2-section p {
  color: #647084;
}

.v2-system {
  padding-top: 44px;
}

.v2-system-grid {
  grid-template-columns: repeat(4, 1fr);
  border-color: rgba(17, 24, 39, 0.1);
}

.v2-system-grid article {
  min-height: 190px;
  padding: 24px 22px;
}

.v2-system-grid span {
  margin-bottom: 34px;
  color: #2563eb;
}

.v2-system-grid h3 {
  font-size: 21px;
}

.v2-columns-grid {
  grid-template-columns: repeat(3, 1fr);
  border-color: rgba(17, 24, 39, 0.1);
}

.v2-columns-grid a,
.v2-latest-card {
  min-height: 190px;
  padding: 24px 22px;
}

.v2-columns-grid h3,
.v2-latest-card h3 {
  color: #111827;
  font-size: 21px;
}

.v2-latest-card {
  display: flex;
  flex-direction: column;
}

.v2-latest-card span {
  margin-bottom: 24px;
  color: #2563eb;
}

.v2-latest-card strong {
  margin-top: auto;
  color: #2563eb;
  font-size: 14px;
  font-weight: 900;
}

.v2-founder-light {
  gap: 34px;
  padding-top: 34px;
  padding-bottom: 58px;
  border-top-color: rgba(17, 24, 39, 0.1);
}

.v2-founder-light h2 {
  margin-bottom: 12px;
  font-size: clamp(28px, 3vw, 38px);
}

.v2-founder-light p {
  max-width: 760px;
  color: #647084;
  font-size: 17px;
}

.v2-community {
  padding-top: 44px;
  padding-bottom: 92px;
}

.v2-community-inner {
  padding-top: 38px;
  border-top-color: rgba(17, 24, 39, 0.12);
}

@media (max-width: 980px) {
  .v2-hero {
    display: block;
    min-height: auto;
    padding: 40px 0 26px;
  }

  .v2-hero-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .v2-learning-card {
    max-width: none;
  }

  .v2-system-grid,
  .v2-columns-grid,
  .v2-latest-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .v2-hero,
  .v2-section {
    width: min(100% - 28px, 1180px);
  }

  .v2-hero {
    padding: 32px 0 18px;
  }

  .v2-hero h1 {
    font-size: clamp(46px, 13vw, 64px);
  }

  .v2-hero-subtitle {
    font-size: 22px;
  }

  .v2-hero-lead br {
    display: none;
  }

  .v2-learning-card {
    padding: 22px 18px;
  }

  .v2-system-grid,
  .v2-columns-grid,
  .v2-latest-grid {
    grid-template-columns: 1fr;
  }

  .v2-system-grid article,
  .v2-columns-grid a,
  .v2-latest-card {
    min-height: auto;
    padding: 22px 0;
  }
}

/* Platform homepage hard rebuild */
.platform-home {
  --platform-max: 1180px;
  --platform-text: #111827;
  --platform-muted: #5f6b7a;
  --platform-line: rgba(17, 24, 39, 0.1);
  --platform-blue: #2563eb;
  background: #f8fafc;
  color: var(--platform-text);
}

.platform-home main {
  overflow: hidden;
}

.platform-hero,
.platform-section {
  width: min(calc(100% - 48px), var(--platform-max));
  margin: 0 auto;
}

.platform-hero {
  min-height: 520px;
  padding: 40px 0 22px;
  display: flex;
  align-items: center;
}

.platform-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.74fr);
  gap: 38px;
  align-items: center;
  width: 100%;
}

.platform-hero-copy {
  max-width: 680px;
}

.platform-kicker {
  margin-bottom: 16px;
  color: #374151;
  font-size: 15px;
  font-weight: 800;
}

.platform-hero-copy h1 {
  margin: 0 0 14px;
  color: #0f172a;
  font-size: clamp(48px, 6vw, 78px);
  font-weight: 820;
  line-height: 1.03;
  letter-spacing: 0;
}

.platform-subtitle {
  margin: 0 0 18px;
  color: #1f2937;
  font-size: clamp(22px, 2.4vw, 31px);
  font-weight: 760;
  line-height: 1.25;
}

.platform-lead {
  max-width: 650px;
  margin: 0;
  color: var(--platform-muted);
  font-size: 18px;
  line-height: 1.78;
}

.platform-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.platform-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid var(--platform-line);
  border-radius: 999px;
  background: #ffffff;
  color: #4b5563;
  font-size: 13px;
  font-weight: 760;
}

.platform-hero-panel {
  padding: 26px;
  border: 1px solid var(--platform-line);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 18px 52px rgba(15, 23, 42, 0.08);
}

.platform-hero-panel h2 {
  margin: 0 0 18px;
  color: #0f172a;
  font-size: 25px;
  line-height: 1.25;
}

.platform-start-list {
  display: grid;
  border-top: 1px solid var(--platform-line);
}

.platform-start-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) max-content;
  gap: 14px;
  align-items: center;
  min-height: 82px;
  padding: 15px 12px;
  border-bottom: 1px solid var(--platform-line);
  border-radius: 8px;
  transition:
    background 0.18s ease,
    transform 0.18s ease;
}

.platform-start-item:hover {
  background: #f7f9ff;
  transform: translateX(2px);
}

.platform-start-index {
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 900;
}

.platform-start-content {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.platform-start-title {
  color: #111827;
  font-size: 16px;
  line-height: 1.35;
}

.platform-start-desc {
  color: var(--platform-muted);
  font-size: 14px;
  line-height: 1.58;
}

.platform-start-action {
  justify-self: end;
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.2;
  text-align: right;
  white-space: nowrap;
  transition: transform 0.18s ease;
}

.platform-start-arrow {
  display: inline-block;
  margin-left: 4px;
  transition: transform 0.18s ease;
}

.platform-start-item:hover .platform-start-action {
  text-decoration: underline;
  text-underline-offset: 4px;
  transform: translateX(2px);
}

.platform-start-item:hover .platform-start-arrow {
  transform: translateX(3px);
}

.platform-section {
  padding: 54px 0;
}

.platform-start-section {
  padding-top: 28px;
}

.platform-section-head {
  max-width: 760px;
  margin-bottom: 26px;
}

.platform-section-head h2,
.platform-founder h2,
.platform-cta h2 {
  margin: 0 0 10px;
  color: #0f172a;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.2;
}

.platform-section-head p,
.platform-founder p,
.platform-cta p {
  margin: 0;
  color: var(--platform-muted);
  font-size: 16px;
  line-height: 1.72;
}

.platform-start-grid,
.platform-stage-grid,
.platform-column-grid,
.platform-latest-grid {
  display: grid;
  border: 1px solid var(--platform-line);
  border-radius: 12px;
  background: #ffffff;
  overflow: hidden;
}

.platform-start-grid {
  grid-template-columns: repeat(4, 1fr);
}

.platform-stage-grid {
  grid-template-columns: repeat(4, 1fr);
}

.platform-column-grid,
.platform-latest-grid {
  grid-template-columns: repeat(3, 1fr);
}

.platform-task-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.platform-task-card {
  display: flex;
  flex-direction: column;
  min-height: 230px;
  padding: 24px 22px;
  border: 1px solid var(--platform-line);
  border-radius: 12px;
  background: #ffffff;
}

.platform-task-card span {
  margin-bottom: 22px;
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 900;
}

.platform-task-card h3 {
  margin: 0 0 12px;
  color: #111827;
  font-size: 21px;
  line-height: 1.35;
}

.platform-task-card p {
  margin: 0 0 22px;
  color: var(--platform-muted);
  font-size: 15px;
  line-height: 1.68;
}

.platform-task-card .platform-task-result {
  display: inline-flex;
  align-items: flex-start;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 22px;
  padding: 8px 10px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 8px;
  background: #f5f8ff;
  color: #315179;
  font-size: 13px;
  font-weight: 760;
  line-height: 1.55;
}

.platform-task-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

.platform-route-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: end;
  padding: 26px;
  border: 1px solid var(--platform-line);
  border-radius: 12px;
  background: #ffffff;
}

.platform-route-card ol {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
  border: 1px solid var(--platform-line);
  border-radius: 10px;
  overflow: hidden;
}

.platform-route-card li {
  min-height: 150px;
  padding: 18px 16px;
  border-right: 1px solid var(--platform-line);
}

.platform-route-card li:last-child {
  border-right: 0;
}

.platform-route-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 900;
}

.platform-route-card strong {
  display: block;
  margin-bottom: 10px;
  color: #111827;
  font-size: 16px;
  line-height: 1.45;
}

.platform-route-card em {
  display: block;
  color: var(--platform-muted);
  font-size: 13px;
  font-style: normal;
  font-weight: 760;
  line-height: 1.55;
}

.platform-start-card,
.platform-stage-grid article,
.platform-column-grid a,
.platform-latest-card {
  min-height: 178px;
  padding: 24px 22px;
  border-right: 1px solid var(--platform-line);
}

.platform-start-card:last-child,
.platform-stage-grid article:last-child,
.platform-column-grid a:nth-child(3n),
.platform-latest-card:last-child {
  border-right: 0;
}

.platform-column-grid a:nth-child(n + 4) {
  border-top: 1px solid var(--platform-line);
}

.platform-start-card h3,
.platform-stage-grid h3,
.platform-column-grid h3,
.platform-latest-card h3 {
  margin: 0 0 12px;
  color: #111827;
  font-size: 20px;
  line-height: 1.35;
}

.platform-start-card p,
.platform-stage-grid p,
.platform-column-grid p,
.platform-latest-card p {
  margin: 0;
  color: var(--platform-muted);
  font-size: 15px;
  line-height: 1.68;
}

.platform-stage-grid span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 900;
}

.platform-latest-card {
  display: flex;
  flex-direction: column;
}

.platform-latest-card span {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--platform-blue);
  font-size: 13px;
  font-weight: 850;
}

.platform-latest-card strong {
  margin-top: auto;
  color: var(--platform-blue);
  font-size: 14px;
  font-weight: 900;
}

.platform-empty {
  padding: 22px;
  color: var(--platform-muted);
}

.platform-founder {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  border-top: 1px solid var(--platform-line);
  border-bottom: 1px solid var(--platform-line);
}

.platform-founder div {
  max-width: 780px;
}

.platform-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 86px;
}

.platform-cta div {
  max-width: 760px;
}

@media (max-width: 980px) {
  .platform-hero {
    min-height: auto;
    padding: 42px 0 28px;
  }

  .platform-hero-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .platform-hero-panel {
    max-width: none;
  }

  .platform-start-grid,
  .platform-stage-grid,
  .platform-task-grid,
  .platform-column-grid,
  .platform-latest-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-route-card {
    grid-template-columns: 1fr;
  }

  .platform-route-card ol {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform-route-card li {
    border-top: 1px solid var(--platform-line);
  }

  .platform-route-card li:nth-child(-n + 2) {
    border-top: 0;
  }

  .platform-route-card li:nth-child(2n) {
    border-right: 0;
  }

  .platform-start-card,
  .platform-stage-grid article,
  .platform-column-grid a,
  .platform-latest-card {
    border-top: 1px solid var(--platform-line);
  }

  .platform-start-card:nth-child(-n + 2),
  .platform-stage-grid article:nth-child(-n + 2),
  .platform-column-grid a:nth-child(-n + 2),
  .platform-latest-card:nth-child(-n + 2) {
    border-top: 0;
  }

  .platform-start-card:nth-child(2n),
  .platform-stage-grid article:nth-child(2n),
  .platform-column-grid a:nth-child(2n),
  .platform-latest-card:nth-child(2n) {
    border-right: 0;
  }

  .platform-founder,
  .platform-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .platform-hero,
  .platform-section {
    width: min(calc(100% - 28px), var(--platform-max));
  }

  .platform-hero {
    padding: 32px 0 20px;
  }

  .platform-hero-copy h1 {
    font-size: clamp(44px, 13vw, 60px);
  }

  .platform-subtitle {
    font-size: 22px;
  }

  .platform-lead {
    font-size: 16px;
  }

  .platform-lead br {
    display: none;
  }

  .platform-hero-panel {
    padding: 22px 18px;
  }

  .platform-start-item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 6px 12px;
    align-items: start;
    min-height: auto;
    padding: 14px 8px;
  }

  .platform-start-action {
    grid-column: 2;
    justify-self: start;
    text-align: left;
  }

  .platform-actions {
    gap: 10px;
  }

  .platform-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .platform-section {
    padding: 42px 0;
  }

  .platform-start-section {
    padding-top: 24px;
  }

  .platform-start-grid,
  .platform-stage-grid,
  .platform-task-grid,
  .platform-column-grid,
  .platform-latest-grid {
    grid-template-columns: 1fr;
  }

  .platform-task-card {
    min-height: auto;
    padding: 22px 18px;
  }

  .platform-route-card {
    padding: 20px 18px;
  }

  .platform-route-card ol {
    grid-template-columns: 1fr;
  }

  .platform-route-card li {
    min-height: auto;
    border-right: 0;
    border-top: 1px solid var(--platform-line);
  }

  .platform-route-card li:first-child {
    border-top: 0;
  }

  .platform-start-card,
  .platform-stage-grid article,
  .platform-column-grid a,
  .platform-latest-card {
    min-height: auto;
    padding: 22px 18px;
    border-right: 0;
    border-top: 1px solid var(--platform-line);
  }

  .platform-start-card:first-child,
  .platform-stage-grid article:first-child,
  .platform-column-grid a:first-child,
  .platform-latest-card:first-child {
    border-top: 0;
  }
}