:root {
  --bg: #fff7f1;
  --bg-2: #f5e7ff;
  --bg-3: #fefcff;
  --ink: #231a3b;
  --muted: #6f6780;
  --muted-2: #8a8296;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-strong: #ffffff;
  --border: rgba(92, 72, 122, 0.12);
  --accent: #ff6b8b;
  --accent-2: #6d67ff;
  --accent-3: #ffb84d;
  --accent-4: #27c3b6;
  --shadow: 0 28px 70px rgba(40, 24, 66, 0.14);
  --shadow-soft: 0 18px 36px rgba(40, 24, 66, 0.08);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100vw - 32px));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 107, 139, 0.18), transparent 32%),
    radial-gradient(circle at 90% 8%, rgba(109, 103, 255, 0.18), transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(39, 195, 182, 0.12), transparent 28%),
    linear-gradient(180deg, #fffaf6 0%, #fff7fd 45%, #fefbff 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(103, 79, 124, 0.08) 1px, transparent 0);
  background-size: 26px 26px;
  opacity: 0.45;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.06) 60%, transparent 100%);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  background: rgba(255, 249, 251, 0.78);
  border-bottom: 1px solid rgba(92, 72, 122, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 15px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(255, 107, 139, 0.26);
  flex: 0 0 auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.brand-text strong {
  font-size: 18px;
  letter-spacing: 0.02em;
}

.brand-text span {
  font-size: 12px;
  color: var(--muted);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(92, 72, 122, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  align-items: center;
  justify-content: center;
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}

.nav-toggle span {
  position: relative;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav a {
  font-size: 15px;
  color: var(--muted);
  font-weight: 700;
  transition: color 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, #ff8698 46%, #ffb84d 100%);
  box-shadow: 0 18px 34px rgba(255, 107, 139, 0.28);
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(92, 72, 122, 0.12);
  box-shadow: var(--shadow-soft);
}

.button.ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(92, 72, 122, 0.1);
}

.button.small {
  min-height: 42px;
  padding-inline: 18px;
  font-size: 14px;
}

.hero {
  position: relative;
  padding: 54px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 32px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  color: #4f3f69;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(92, 72, 122, 0.1);
  box-shadow: var(--shadow-soft);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  margin: 16px 0 14px;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: clamp(40px, 6.2vw, 74px);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero .lead,
.page-hero .lead {
  max-width: 62ch;
  margin: 0;
  color: #514965;
  font-size: 18px;
  line-height: 1.8;
}

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

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(92, 72, 122, 0.1);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  box-shadow: var(--shadow-soft);
}

.hero-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.note-card,
.stat-card,
.feature-card,
.mini-card,
.review-card,
.faq-card,
.stage-card,
.info-card,
.block-card,
.accordion-item,
.download-band,
.panel,
.content-card,
.callout {
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.note-card {
  padding: 20px;
  border-radius: var(--radius-lg);
}

.note-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

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

.hero-art {
  position: relative;
}

.hero-shot {
  position: relative;
  padding: 16px;
  border-radius: 40px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.48), rgba(255, 255, 255, 0.12)),
    linear-gradient(180deg, rgba(109, 103, 255, 0.18), rgba(255, 107, 139, 0.16));
  box-shadow: var(--shadow);
}

.hero-shot img {
  width: 100%;
  border-radius: 28px;
}

.floating-chip {
  position: absolute;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(92, 72, 122, 0.12);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.chip-a {
  left: -16px;
  top: 26px;
}

.chip-b {
  right: -8px;
  bottom: 26px;
}

.section {
  position: relative;
  padding: 28px 0;
}

.section-alt {
  padding: 32px 0 18px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 0;
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1;
  letter-spacing: -0.04em;
}

.section-head p,
.section-subtitle {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  line-height: 1.8;
}

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

.stat-card {
  padding: 20px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 253, 0.88));
}

.stat-card strong {
  display: block;
  margin-bottom: 8px;
  font-family: "Segoe UI", sans-serif;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.stat-card span {
  display: block;
  color: var(--muted);
  line-height: 1.6;
}

.grid {
  display: grid;
  gap: 14px;
}

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

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

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

.span-2 {
  grid-column: span 2;
}

.feature-card,
.mini-card,
.review-card,
.faq-card,
.stage-card,
.info-card,
.block-card,
.content-card,
.callout {
  border-radius: var(--radius-lg);
}

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
}

.icon-badge {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  color: #fff;
  font-size: 22px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  box-shadow: 0 14px 26px rgba(109, 103, 255, 0.26);
}

.feature-card h3,
.mini-card h3,
.review-card h3,
.faq-card h3,
.stage-card h3,
.info-card h3,
.block-card h3,
.content-card h3,
.callout h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
}

.feature-card p,
.mini-card p,
.review-card p,
.faq-card p,
.stage-card p,
.info-card p,
.block-card p,
.content-card p,
.callout p,
.copy-list li,
.compact-list li {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.feature-card .meta,
.mini-card .meta,
.review-card .meta,
.faq-card .meta {
  color: var(--muted-2);
  font-size: 13px;
  line-height: 1.6;
}

.dual-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: 18px;
  align-items: center;
}

.media-panel {
  padding: 16px;
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.1)),
    linear-gradient(135deg, rgba(255, 107, 139, 0.16), rgba(109, 103, 255, 0.16));
  box-shadow: var(--shadow);
}

.media-panel img {
  width: 100%;
  border-radius: 24px;
}

.content-stack {
  display: grid;
  gap: 14px;
}

.content-card {
  padding: 22px;
}

.content-card .link-row {
  margin-top: 14px;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.link-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(92, 72, 122, 0.1);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.mini-card {
  padding: 20px;
}

.mini-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 20px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(92, 72, 122, 0.1);
  box-shadow: var(--shadow-soft);
}

.step-num {
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  color: #fff;
  font-family: "Segoe UI", sans-serif;
  font-size: 24px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  box-shadow: 0 16px 28px rgba(109, 103, 255, 0.2);
}

.timeline-item h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.callout {
  padding: 22px;
}

.callout ul,
.copy-list,
.compact-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.copy-list li,
.compact-list li {
  position: relative;
  padding-left: 18px;
}

.copy-list li::before,
.compact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  transform: translateY(-50%);
}

.faq-shell {
  display: grid;
  gap: 12px;
}

.accordion-item {
  overflow: hidden;
  border-radius: 24px;
}

.accordion-trigger {
  width: 100%;
  padding: 18px 20px;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  color: var(--ink);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.accordion-trigger strong {
  display: block;
  font-size: 18px;
  line-height: 1.45;
}

.accordion-trigger span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.7;
}

.accordion-icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(92, 72, 122, 0.1);
  font-weight: 900;
  transition: transform 0.2s ease;
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-content {
  padding: 0 20px 20px;
  color: var(--muted);
  line-height: 1.85;
}

.quote-mark {
  display: inline-flex;
  margin-bottom: 16px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  font-size: 26px;
  font-weight: 900;
}

.review-card {
  padding: 22px;
}

.review-card p {
  color: var(--ink);
  line-height: 1.85;
}

.review-card .meta {
  margin-top: 16px;
}

.download-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.24), transparent 30%),
    linear-gradient(135deg, #ff6b8b 0%, #6d67ff 56%, #ffb84d 100%);
  color: #fff;
}

.download-band h2,
.download-band p {
  margin: 0;
}

.download-band p {
  opacity: 0.92;
  line-height: 1.8;
  max-width: 60ch;
}

.download-band .button.secondary {
  background: rgba(255, 255, 255, 0.95);
}

.footer {
  padding: 26px 0 42px;
}

.footer-inner {
  padding-top: 18px;
  border-top: 1px solid rgba(92, 72, 122, 0.1);
  color: var(--muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 14px;
}

.footer-nav a {
  color: var(--muted);
  font-weight: 700;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--ink);
}

.footer-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
}

.footer-copy {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted-2);
}

.page-hero {
  padding: 50px 0 20px;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: center;
}

.page-art {
  padding: 14px;
  border-radius: 32px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1)),
    linear-gradient(135deg, rgba(255, 107, 139, 0.16), rgba(109, 103, 255, 0.14));
  box-shadow: var(--shadow);
}

.page-art img {
  border-radius: 22px;
}

.page-actions {
  margin-top: 24px;
}

.stack {
  display: grid;
  gap: 16px;
}

.panel {
  padding: 22px;
  border-radius: 28px;
}

.panel h3 {
  margin-top: 0;
}

.small-kicker {
  margin: 0 0 10px;
  color: #7a6287;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.label-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topic-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: start;
}

.topic-aside {
  display: grid;
  gap: 14px;
}

.spotlight {
  padding: 24px;
  border-radius: 30px;
  color: #fff;
  background: linear-gradient(135deg, #1f1738 0%, #6d67ff 58%, #ff6b8b 100%);
  box-shadow: var(--shadow);
}

.spotlight p {
  color: rgba(255, 255, 255, 0.88);
}

.dense-list {
  display: grid;
  gap: 12px;
}

.dense-list li {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(92, 72, 122, 0.1);
  color: var(--ink);
  line-height: 1.7;
}

.inline-link {
  color: #4b40cc;
  font-weight: 800;
}

.inline-link:hover,
.inline-link:focus-visible {
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .hero-grid,
  .page-hero-grid,
  .dual-grid,
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .hero-art,
  .page-art {
    max-width: 720px;
    margin-inline: auto;
  }

  .stat-strip,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 840px) {
  .header-inner {
    gap: 12px;
  }

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

  .site-nav {
    position: fixed;
    top: 80px;
    left: 16px;
    right: 16px;
    padding: 18px;
    border-radius: 26px;
    background: rgba(255, 251, 252, 0.96);
    border: 1px solid rgba(92, 72, 122, 0.12);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.22s ease, transform 0.22s ease;
  }

  body.nav-open .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }

  .site-nav a {
    display: block;
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(245, 238, 255, 0.72);
  }

  .nav-actions {
    margin-left: auto;
  }

  .hero,
  .page-hero {
    padding-top: 28px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(36px, 11vw, 56px);
  }

  .hero-notes,
  .grid-3,
  .grid-4,
  .stat-strip,
  .page-hero-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: auto;
  }

  .section-head,
  .download-band {
    flex-direction: column;
    align-items: start;
  }

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

  .accordion-trigger {
    padding-right: 16px;
  }
}

@media (max-width: 560px) {
  .container {
    width: calc(100vw - 24px);
  }

  .brand-text span {
    display: none;
  }

  .hero-actions,
  .page-actions,
  .link-row,
  .footer-nav {
    gap: 10px;
  }

  .button {
    width: 100%;
  }

  .button.small {
    width: auto;
  }

  .hero-shot,
  .panel,
  .download-band,
  .review-card,
  .feature-card,
  .content-card,
  .callout,
  .mini-card {
    border-radius: 22px;
  }

  .section {
    padding: 22px 0;
  }
}