:root {
  --bg: #f6f6f6;
  --panel: #ffffff;
  --ink: #252525;
  --muted: #7a7a7a;
  --line: #dddddd;
  --soft: #f1f1f1;
  --black: #222222;
  --lime: #dfff5a;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.07);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
}

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

button {
  font: inherit;
}

.launch-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  height: 42px;
  padding: 0 18px;
  color: #111111;
  background: var(--lime);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.launch-bar span {
  justify-self: center;
}

.launch-bar button {
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.site-nav {
  position: sticky;
  top: 42px;
  z-index: 49;
  display: grid;
  grid-template-columns: 138px 1fr auto;
  align-items: center;
  height: 58px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #e5e5e5;
}

.hide-launch .site-nav {
  top: 0;
}

.brand,
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 11px;
  font-size: 16px;
}

.brand-badge {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: #151515;
  background: #ffe266;
  border-radius: 4px;
  font-weight: 900;
  font-size: 13px;
}

.nav-links {
  gap: 34px;
  color: #686868;
  font-size: 14px;
}

.nav-links a,
.nav-actions a,
.nav-actions button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-links span {
  color: #6b6b6b;
}

.nav-actions {
  gap: 18px;
  color: #161616;
  font-size: 13px;
}

.nav-actions button {
  border: 0;
  background: transparent;
  color: #666666;
  cursor: pointer;
}

.account-dot {
  justify-content: center;
  width: 36px;
  height: 36px;
  color: #ffffff;
  background: #0d1117;
  border-radius: 50%;
  font-weight: 800;
}

.hero-section {
  min-height: 552px;
  padding: 100px 20px 86px;
  text-align: center;
}

.ai-pill {
  display: inline-flex;
  align-items: center;
  height: 26px;
  margin: 0 0 34px;
  padding: 0 15px;
  color: #ffffff;
  background: var(--black);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

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

.hero-section h1 {
  margin: 0 auto 22px;
  font-size: clamp(44px, 4.2vw, 60px);
  line-height: 1.16;
  letter-spacing: 0;
  font-weight: 900;
}

.hero-subtitle {
  width: min(600px, 100%);
  margin: 0 auto;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 44px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 47px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.btn-dark {
  color: #ffffff;
  background: var(--black);
  border-color: var(--black);
}

.btn-light {
  color: #242424;
  background: #ffffff;
}

.suite-section,
.model-section,
.steps-section,
.tech-section,
.why-section,
.gallery-section,
.pricing-section,
.faq-section {
  padding: 72px 20px;
}

.suite-section {
  display: grid;
  grid-template-columns: 566px 564px;
  align-items: center;
  justify-content: center;
  gap: 70px;
  min-height: 600px;
  padding-top: 0;
}

.suite-card,
.feature-panel,
.steps-grid article,
.tech-grid article,
.why-grid article,
.price-grid article,
.forever-pack,
.faq-list details {
  background: var(--panel);
  border: 1px solid #d8d8d8;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.suite-card {
  min-height: 474px;
  padding: 34px 32px;
}

.suite-card h2,
.feature-panel h2 {
  margin-bottom: 10px;
  font-size: 32px;
  line-height: 1.15;
}

.muted-line {
  margin-bottom: 20px;
  color: #777777;
  font-size: 16px;
}

.body-copy {
  color: #777777;
  line-height: 1.75;
  font-size: 16px;
}

.check-list {
  display: grid;
  gap: 16px;
  margin: 28px 0 34px;
  padding: 0;
  list-style: none;
  color: #666666;
}

.check-list li::before {
  content: "⊙";
  margin-right: 10px;
  color: #1f1f1f;
}

.suite-cta {
  min-width: 164px;
}

.poster-showcase {
  display: grid;
  grid-template-columns: repeat(3, 182px);
  gap: 8px;
}

.poster {
  position: relative;
  overflow: hidden;
  height: 324px;
  padding: 16px;
  color: #4a190d;
  border-radius: 7px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.poster strong {
  position: relative;
  z-index: 2;
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  line-height: 1;
}

.poster small {
  position: relative;
  z-index: 2;
  display: block;
  margin-top: 4px;
  font-size: 10px;
  letter-spacing: 1px;
}

.corner-brand {
  position: relative;
  z-index: 2;
  font-size: 13px;
  font-weight: 700;
}

.poster-one {
  background:
    linear-gradient(90deg, rgba(120, 69, 33, 0.22) 1px, transparent 1px) 0 0 / 18px 100%,
    linear-gradient(180deg, #f5d6a4, #fff2d7 44%, #9d572d);
}

.poster-two {
  background:
    radial-gradient(circle at 65% 24%, #f7e2b9 0 34px, transparent 35px),
    linear-gradient(125deg, #f5eee1 0 42%, #7b563e 43% 100%);
}

.poster-three {
  display: grid;
  place-items: center;
  color: #ffffff;
  background:
    radial-gradient(circle at 55% 38%, rgba(255, 255, 255, 0.12), transparent 20%),
    linear-gradient(120deg, #1b120d, #7b5d43);
}

.pack,
.plum,
.pile,
.table,
.hand-plum,
.big-plum {
  position: absolute;
  z-index: 1;
}

.pack {
  right: 24px;
  bottom: 55px;
  width: 74px;
  height: 118px;
  background:
    linear-gradient(#8d2e22, #8d2e22) 50% 50% / 54px 1px no-repeat,
    linear-gradient(#f8ead4, #fff9ec);
  border: 2px solid #8f2f25;
}

.plum {
  width: 78px;
  height: 58px;
  border-radius: 48% 52% 42% 58%;
  background: radial-gradient(circle at 35% 30%, #6b312e, #2c0d15 70%);
}

.pile {
  left: 24px;
  bottom: 40px;
  box-shadow:
    20px 8px 0 #42151a,
    42px 2px 0 #5a2425,
    55px 20px 0 #2a0d12;
}

.table {
  left: 0;
  right: 0;
  bottom: 0;
  height: 88px;
  background: linear-gradient(90deg, #65412c, #b48b63);
}

.hand-plum {
  right: 34px;
  bottom: 76px;
  width: 55px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle, #4d1819, #1f090d);
  box-shadow: -20px 18px 0 rgba(240, 205, 170, 0.9);
}

.big-plum {
  width: 112px;
  height: 126px;
  border-radius: 45% 55% 52% 48%;
  background:
    radial-gradient(circle at 35% 26%, rgba(255, 255, 255, 0.22), transparent 12%),
    radial-gradient(circle, #5b2426, #1e0a0d 70%);
}

.poster-three strong {
  margin-top: 150px;
  color: #ffffff;
  font-family: inherit;
  font-size: 30px;
  text-align: center;
}

.poster-three small {
  color: #ffffff;
  text-align: center;
}

.poster-caption {
  position: absolute;
  inset: auto 0 0;
  height: 64px;
  display: grid;
  place-items: center;
  color: rgba(91, 58, 34, 0.72);
  background: rgba(196, 196, 196, 0.82);
  font-size: 22px;
}

.tag-row {
  grid-column: 1 / -1;
  display: flex;
  gap: 6px;
  padding-top: 6px;
}

.tag-row span {
  padding: 5px 10px;
  color: #555555;
  background: #ffffff;
  border: 1px solid #dddddd;
  border-radius: 7px;
  font-size: 12px;
}

.section-divider {
  width: calc(100% - 80px);
  height: 1px;
  margin: 0 auto;
  background: #dfdfdf;
}

.model-section {
  display: grid;
  grid-template-columns: 566px 566px;
  align-items: center;
  justify-content: center;
  gap: 70px;
  min-height: 594px;
}

.model-board {
  min-height: 453px;
  padding: 30px 28px 26px;
  color: #ffffff;
  background: #111111;
  border-radius: 15px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.22);
}

.model-board p {
  margin: 0 0 16px;
  color: #8c8c8c;
  font-size: 12px;
}

.model-board ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.model-board li {
  display: grid;
  grid-template-columns: 16px 1fr auto;
  align-items: center;
  min-height: 47px;
  padding: 0 16px;
  background: #222222;
  border-radius: 9px;
}

.model-board span {
  padding: 4px 10px;
  background: #444444;
  border-radius: 999px;
  font-size: 12px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.mint { background: #25c6a2; }
.blue { background: #2688e5; }
.violet { background: #8b48e8; }
.pink { background: #e63b8d; }
.orange { background: #f06925; }
.cyan { background: #29a3ce; }
.green { background: #7bbd1e; }

.feature-panel {
  min-height: 447px;
  padding: 38px 32px;
}

.section-heading {
  width: min(980px, 100%);
  margin: 0 auto 64px;
  text-align: center;
}

.section-heading h2 {
  margin-bottom: 18px;
  font-size: 38px;
  line-height: 1.12;
}

.section-heading p {
  margin: 0 auto;
  color: var(--muted);
  font-size: 17px;
}

.steps-section {
  padding-top: 86px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 386px);
  justify-content: center;
  gap: 22px;
}

.steps-grid article {
  position: relative;
  min-height: 265px;
  padding: 36px 32px;
}

.step-icon {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  color: #ffffff;
  background: var(--black);
  border-radius: 12px;
  font-size: 25px;
}

.steps-grid b {
  position: absolute;
  top: 26px;
  right: 25px;
  color: #eeeeee;
  font-size: 42px;
}

.steps-grid h3 {
  margin: 24px 0 12px;
  font-size: 23px;
}

.steps-grid p,
.tech-grid p {
  color: #777777;
  line-height: 1.65;
}

.tech-section {
  padding-top: 50px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 290px);
  justify-content: center;
  gap: 14px 16px;
}

.tech-grid article {
  min-height: 217px;
  padding: 28px 24px;
}

.tech-grid span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  margin-bottom: 18px;
  background: #f4f4f4;
  border-radius: 10px;
  font-size: 22px;
}

.tech-grid h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.why-section {
  padding-top: 98px;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 594px);
  justify-content: center;
  gap: 16px;
}

.why-grid article {
  display: grid;
  gap: 18px;
  min-height: 143px;
  padding: 28px 30px;
}

.why-grid p {
  margin: 0;
  padding: 12px 14px;
  color: #7b7b7b;
  background: #f3f3f3;
  border-radius: 9px;
  text-decoration: line-through;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 293px);
  justify-content: center;
  gap: 10px 12px;
}

.gallery-grid article {
  overflow: hidden;
  min-height: 282px;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
}

.gallery-grid article.tall {
  min-height: 342px;
}

.gallery-grid article.wide {
  min-height: 342px;
}

.gallery-grid div {
  height: 224px;
  background:
    linear-gradient(#f8f8f8, #f8f8f8) 50% 50% / 152px 126px no-repeat,
    #e9e9e9;
}

.gallery-grid .tall div,
.gallery-grid .wide div {
  height: 284px;
}

.gallery-grid h3 {
  margin: 13px 14px 2px;
  font-size: 14px;
}

.gallery-grid p {
  margin: 0 14px 12px;
  color: #777777;
  font-size: 12px;
}

.pricing-section {
  padding-top: 78px;
}

.wechat-badge {
  display: inline-flex;
  align-items: center;
  margin-top: 26px;
  padding: 7px 14px;
  background: #ffffff;
  border: 1px solid #dfdfdf;
  border-radius: 999px;
  font-size: 13px;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(4, 290px);
  justify-content: center;
  gap: 14px;
}

.price-grid article {
  position: relative;
  min-height: 558px;
  padding: 28px 18px 18px;
  box-shadow: none;
}

.price-grid article.popular {
  border: 2px solid #222222;
}

.popular-label {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 13px;
  color: #ffffff;
  background: #222222;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.plan-tag {
  display: inline-flex;
  padding: 5px 13px;
  color: #777777;
  background: #f0f0f0;
  border-radius: 999px;
  font-size: 12px;
}

.plan-tag.purple { color: #8b45dc; background: #f0e7ff; }
.plan-tag.gold { color: #a86608; background: #fff2ce; }
.plan-tag.black { color: #ffe15a; background: #171717; }

.credits {
  margin: 18px 0 6px;
  font-size: 18px;
}

.price-grid h3 {
  margin: 0 0 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e0e0e0;
  font-size: 35px;
  line-height: 1;
}

.price-grid s {
  color: #8d8d8d;
  font-size: 13px;
  font-weight: 400;
}

.price-grid em {
  padding: 3px 5px;
  color: #f16622;
  border: 1px solid #ffa764;
  border-radius: 4px;
  font-size: 12px;
  font-style: normal;
}

.price-grid ul {
  display: grid;
  gap: 14px;
  min-height: 295px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  color: #777777;
}

.price-grid li::before {
  content: "✓";
  margin-right: 10px;
  color: #111111;
}

.price-grid mark {
  color: #006cf0;
  background: #e6f1ff;
  border-radius: 5px;
  padding: 2px 6px;
}

.price-grid small {
  display: block;
  margin-bottom: 14px;
  color: #777777;
}

.price-grid article > a {
  display: grid;
  min-height: 41px;
  place-items: center;
  border: 1px solid #dfdfdf;
  border-radius: 6px;
}

.price-grid .popular > a {
  color: #ffffff;
  background: #222222;
}

.forever-pack {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 10px;
  width: 1202px;
  min-height: 64px;
  margin: 14px auto 0;
  padding: 0 20px;
  box-shadow: none;
}

.forever-pack span,
.forever-pack small {
  color: #777777;
}

.forever-pack a {
  padding: 9px 18px;
  color: #ffffff;
  background: #222222;
  border-radius: 7px;
  font-weight: 800;
}

.faq-section {
  padding-top: 76px;
}

.faq-list {
  display: grid;
  gap: 8px;
  width: min(802px, calc(100% - 40px));
  margin: 0 auto;
}

.faq-list details {
  box-shadow: none;
}

.faq-list summary {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::after {
  content: "⌄";
  color: #666666;
}

.faq-list details[open] summary::after {
  transform: rotate(180deg);
}

.faq-list p {
  margin: -4px 24px 18px;
  color: #777777;
  line-height: 1.7;
}

.final-cta-section {
  display: grid;
  min-height: 410px;
  place-items: center;
  padding: 74px 20px 86px;
  color: #ffffff;
  background: #111111;
  text-align: center;
}

.final-cta-inner h2 {
  margin: 0 0 22px;
  color: #ffffff;
  font-size: 38px;
  line-height: 1.15;
  font-weight: 900;
}

.final-cta-inner p {
  margin: 0;
  color: #8f8f8f;
  font-size: 17px;
  line-height: 1.85;
}

.final-cta-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 45px;
}

.final-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  min-height: 47px;
  padding: 0 22px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 800;
}

.final-btn-light {
  color: #222222;
  background: #ffffff;
  border: 1px solid #ffffff;
}

.final-btn-dark {
  color: #d8d8d8;
  background: #151515;
  border: 1px solid #3a3a3a;
}

@media (max-width: 1250px) {
  .suite-section,
  .model-section,
  .steps-grid,
  .tech-grid,
  .why-grid,
  .gallery-grid,
  .price-grid {
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    width: min(940px, calc(100% - 40px));
    margin-inline: auto;
  }

  .forever-pack {
    width: min(940px, calc(100% - 40px));
  }
}

@media (max-width: 760px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    height: auto;
    min-height: 58px;
  }

  .nav-links {
    grid-column: 1 / -1;
    flex-wrap: wrap;
    gap: 12px;
    padding-bottom: 12px;
  }

  .suite-section,
  .model-section,
  .steps-grid,
  .tech-grid,
  .why-grid,
  .gallery-grid,
  .price-grid,
  .forever-pack {
    grid-template-columns: 1fr;
    width: calc(100% - 28px);
  }

  .poster-showcase {
    grid-template-columns: 1fr;
  }

  .poster {
    height: 300px;
  }

  .hero-section h1 {
    font-size: 42px;
  }

  .hero-actions,
  .tag-row,
  .final-cta-actions {
    flex-direction: column;
  }

  .forever-pack {
    padding: 18px;
  }
}