:root {
  color-scheme: light;
  --ink: #17191d;
  --muted: #66706d;
  --line: #d8ddd7;
  --paper: #f7f8f4;
  --panel: #ffffff;
  --cyan: #00a7c8;
  --cyan-dark: #006f84;
  --warning: #d94335;
  --charcoal: #2e3438;
  font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 14px 34px;
  background: rgba(247, 248, 244, 0.92);
  border-bottom: 1px solid rgba(23, 25, 29, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover,
.nav-cta:hover {
  color: var(--ink);
}

.nav-cta {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 13px;
  background: var(--panel);
  font-size: 14px;
  font-weight: 700;
}

main {
  overflow: hidden;
}

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  align-items: center;
  gap: 54px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 78px 34px 50px;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 650px;
  font-size: 64px;
  line-height: 1.04;
  font-weight: 900;
}

h1 span {
  display: block;
}

.lead {
  margin: 24px 0 0;
  max-width: 600px;
  color: #4f5854;
  font-size: 20px;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button,
.plan a,
.signup button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  border-radius: 7px;
  padding: 0 18px;
  font-weight: 800;
  border: 1px solid transparent;
}

.button.primary,
.signup button {
  color: white;
  background: var(--ink);
}

.button.secondary,
.plan a {
  background: var(--panel);
  border-color: var(--line);
}

.download-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-panel {
  border: 1px solid #cbd2cd;
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff 0%, #f0f3ef 100%);
  box-shadow: 0 22px 80px rgba(23, 25, 29, 0.14);
  overflow: hidden;
}

.panel-top {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.panel-top strong {
  margin-left: 8px;
  color: var(--ink);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d6d9d3;
}

.dot:first-child {
  background: var(--warning);
}

.dot:nth-child(2) {
  background: #e0bb3d;
}

.dot:nth-child(3) {
  background: var(--cyan);
}

.drop-preview {
  margin: 24px;
  min-height: 210px;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px dashed #aab3af;
  border-radius: 8px;
  background: #fbfcf9;
  padding: 20px;
}

.drop-preview img {
  width: 74px;
  height: 74px;
  border-radius: 16px;
}

.drop-preview p {
  margin: 16px 0 5px;
  font-size: 20px;
  font-weight: 850;
}

.drop-preview small {
  color: var(--muted);
  max-width: 340px;
  overflow-wrap: anywhere;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.mini-grid div {
  padding: 18px 20px;
  background: white;
}

.mini-grid b {
  display: block;
  font-size: 28px;
}

.mini-grid span {
  color: var(--muted);
  font-size: 13px;
}

.bins {
  display: grid;
  gap: 8px;
  padding: 22px 24px 26px;
}

.bins span {
  border-left: 4px solid var(--cyan);
  background: white;
  padding: 10px 12px;
  font-size: 14px;
}

.strip {
  background: var(--ink);
  color: white;
  padding: 26px 34px;
  text-align: center;
}

.strip p {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
}

.steps,
.product-tour,
.feature-band,
.wish,
.trial,
.pricing,
.faq {
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px 34px;
}

.product-tour {
  padding-bottom: 34px;
}

.tour-frame {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.72fr);
  gap: 22px;
  align-items: stretch;
}

.tour-radio {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tour-stage {
  position: relative;
  min-height: 490px;
  border: 1px solid #c7ceca;
  border-radius: 8px;
  background: #e8ece8;
  box-shadow: 0 18px 60px rgba(23, 25, 29, 0.12);
  overflow: hidden;
}

.tour-slide {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  transform: translateX(16px);
  transition: opacity 220ms ease, transform 220ms ease;
}

#tour-1:checked ~ .tour-stage .slide-1,
#tour-2:checked ~ .tour-stage .slide-2,
#tour-3:checked ~ .tour-stage .slide-3,
#tour-4:checked ~ .tour-stage .slide-4 {
  opacity: 1;
  transform: translateX(0);
  z-index: 1;
}

.slide-1 {
  background: radial-gradient(circle at top left, rgba(0, 167, 200, 0.16), transparent 42%), #eef2ef;
}

.slide-2 {
  background: radial-gradient(circle at bottom right, rgba(217, 67, 53, 0.13), transparent 42%), #eef2ef;
}

.slide-3 {
  background: radial-gradient(circle at top right, rgba(46, 52, 56, 0.12), transparent 42%), #eef2ef;
}

.slide-4 {
  background: radial-gradient(circle at bottom left, rgba(0, 111, 132, 0.14), transparent 42%), #eef2ef;
}

.app-window {
  width: min(100%, 680px);
  border: 1px solid rgba(23, 25, 29, 0.16);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 28px 80px rgba(23, 25, 29, 0.18);
  overflow: hidden;
}

.app-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  padding: 0 14px;
  border-bottom: 1px solid var(--line);
  background: #fafbf8;
  color: var(--muted);
  font-size: 12px;
}

.app-bar span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d94335;
}

.app-bar span:nth-child(2) {
  background: #e2b840;
}

.app-bar span:nth-child(3) {
  background: var(--cyan);
}

.app-bar strong {
  margin-left: 8px;
  color: var(--ink);
}

.app-layout {
  display: grid;
  grid-template-columns: 180px 1fr;
  min-height: 360px;
}

.app-layout aside {
  padding: 18px;
  background: #f1f3ef;
  border-right: 1px solid var(--line);
}

.app-layout aside b {
  display: block;
  margin-bottom: 16px;
  font-size: 18px;
}

.app-layout aside p {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 8px 0;
  border-radius: 7px;
  padding: 8px 10px;
  color: #59615e;
  background: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.app-layout aside p.active {
  color: white;
  background: var(--ink);
}

.app-layout aside em {
  font-style: normal;
  color: var(--cyan-dark);
  font-weight: 850;
}

.mock-main {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: 24px;
  overflow: hidden;
}

.mock-drop {
  display: grid;
  place-items: center;
  min-height: 210px;
  border: 1px dashed #9fa9a4;
  border-radius: 8px;
  background: #fbfcf9;
  text-align: center;
  padding: 20px;
}

.folder-icon {
  width: 58px;
  height: 42px;
  border: 4px solid var(--ink);
  border-radius: 7px;
  position: relative;
}

.folder-icon::before {
  content: "";
  position: absolute;
  left: 8px;
  top: -14px;
  width: 26px;
  height: 14px;
  border: 4px solid var(--ink);
  border-bottom: 0;
  border-radius: 7px 7px 0 0;
  background: #fbfcf9;
}

.mock-drop b,
.progress-card b,
.import-menu b {
  display: block;
  margin-top: 16px;
  font-size: 20px;
}

.mock-drop small,
.progress-card small,
.tour-copy small,
.import-menu span {
  color: var(--muted);
  line-height: 1.55;
}

.mock-row,
.queue-grid,
.folder-grid {
  display: grid;
  gap: 10px;
}

.mock-row {
  grid-template-columns: 0.65fr 1fr;
}

.mock-row span,
.queue-grid span,
.folder-grid span {
  border-radius: 7px;
  background: #f4f6f2;
  padding: 12px;
  font-size: 13px;
  font-weight: 800;
}

.progress-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcf9;
  padding: 22px;
}

.progress-card div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.progress-card b {
  margin: 0;
}

.progress-card div span {
  color: var(--cyan-dark);
  font-weight: 900;
}

.progress-card i {
  display: block;
  height: 10px;
  margin: 18px 0 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan) 64%, #d9ded9 64%);
}

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

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

.folder-grid span {
  min-height: 78px;
  display: grid;
  place-items: center;
  background: white;
  border: 1px solid var(--line);
}

.mock-alert {
  border-left: 4px solid var(--warning);
  background: #fff5f3;
  padding: 12px 14px;
  color: #923126;
  font-size: 13px;
  font-weight: 850;
}

.import-menu {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcf9;
  padding: 22px;
}

.import-menu b {
  margin: 0 0 4px;
}

.import-menu span {
  border-left: 4px solid var(--cyan);
  background: white;
  padding: 10px 12px;
}

.mock-timeline {
  height: 70px;
  border-radius: 8px;
  background:
    linear-gradient(90deg, var(--ink) 0 18%, transparent 18% 21%, var(--cyan) 21% 47%, transparent 47% 50%, #9ca56f 50% 72%, transparent 72% 76%, var(--warning) 76% 100%),
    #ecefed;
}

.tour-copy {
  display: grid;
  gap: 10px;
}

.tour-copy label {
  cursor: pointer;
  display: grid;
  grid-template-columns: 38px 1fr;
  column-gap: 12px;
  row-gap: 4px;
  align-content: center;
  min-height: 108px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.tour-copy label span {
  grid-row: 1 / span 2;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #eff3ef;
  color: var(--cyan-dark);
  font-size: 12px;
  font-weight: 900;
}

.tour-copy label b {
  font-size: 18px;
}

#tour-1:checked ~ .tour-copy label[for="tour-1"],
#tour-2:checked ~ .tour-copy label[for="tour-2"],
#tour-3:checked ~ .tour-copy label[for="tour-3"],
#tour-4:checked ~ .tour-copy label[for="tour-4"] {
  border-color: var(--ink);
  box-shadow: inset 4px 0 0 var(--cyan), 0 10px 24px rgba(0, 167, 200, 0.1);
  transform: translateX(-3px);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step {
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}

.step span {
  color: var(--cyan-dark);
  font-size: 13px;
  font-weight: 900;
}

.step h2,
.section-heading h2,
.trial h2,
.faq h2 {
  margin: 10px 0 0;
  font-size: 36px;
  line-height: 1.18;
}

.step p,
.feature-list p,
.trial p,
.plan p,
.faq p {
  color: #56605d;
  line-height: 1.7;
}

.feature-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.wish {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding-top: 44px;
  padding-bottom: 44px;
}

.wish h2 {
  margin: 10px 0 0;
  font-size: 32px;
  line-height: 1.2;
}

.wish p:not(.eyebrow) {
  margin: 12px 0 0;
  max-width: 620px;
  color: #56605d;
  line-height: 1.7;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 34px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.feature-list article {
  min-height: 170px;
  background: var(--panel);
  padding: 28px;
}

.feature-list h3,
.plan h3 {
  margin: 0;
  font-size: 22px;
}

.trial {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: center;
}

.signup {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.signup label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 800;
}

.signup-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.signup input {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 12px;
  font-size: 15px;
}

.signup small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

.trial-result {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  border: 1px solid rgba(0, 167, 200, 0.35);
  border-radius: 8px;
  background: rgba(0, 167, 200, 0.07);
  padding: 16px;
}

.trial-result[hidden] {
  display: none;
}

.trial-result strong {
  font-size: 18px;
}

.trial-result span {
  color: var(--muted);
  line-height: 1.6;
}

.trial-result .button {
  justify-self: start;
  margin-top: 2px;
}

.plans {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 280px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.plan.featured {
  border-color: var(--ink);
  box-shadow: inset 0 5px 0 var(--cyan), 0 14px 34px rgba(0, 167, 200, 0.13);
}

.badge {
  align-self: flex-start;
  margin: -6px 0 14px;
  border-radius: 999px;
  background: var(--cyan);
  color: white;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 900;
}

.price {
  margin: 18px 0 4px;
  color: var(--ink) !important;
  font-size: 34px;
  font-weight: 900;
  line-height: 1.05;
}

.subprice {
  margin: 0 0 12px;
  color: var(--cyan-dark) !important;
  font-size: 14px;
  font-weight: 850;
  line-height: 1.4 !important;
}

.plan p:not(.price):not(.subprice) {
  min-height: 84px;
}

.plan a {
  width: 100%;
  margin-top: 16px;
  margin-top: auto;
}

.pricing-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.faq {
  padding-top: 30px;
}

details {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

summary {
  cursor: pointer;
  font-weight: 850;
  font-size: 18px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  nav {
    display: none;
  }

  .hero,
  .wish,
  .tour-frame,
  .trial {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-panel {
    max-width: 560px;
  }

  h1 {
    font-size: 48px;
  }

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

  .tour-stage {
    min-height: 440px;
  }

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

  #tour-1:checked ~ .tour-copy label[for="tour-1"],
  #tour-2:checked ~ .tour-copy label[for="tour-2"],
  #tour-3:checked ~ .tour-copy label[for="tour-3"],
  #tour-4:checked ~ .tour-copy label[for="tour-4"] {
    transform: translateY(-2px);
  }

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

  .feature-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 12px 18px;
  }

  .nav-cta {
    display: none;
  }

  .hero,
  .steps,
  .product-tour,
  .feature-band,
  .wish,
  .trial,
  .pricing,
  .faq {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 38px;
  }

  h1 span {
    display: inline;
  }

  .lead {
    font-size: 17px;
  }

  .signup-row,
  .mini-grid,
  .mock-row,
  .queue-grid,
  .folder-grid,
  .tour-copy,
  .plans {
    grid-template-columns: 1fr;
  }

  .tour-stage {
    min-height: 520px;
  }

  .tour-slide {
    padding: 14px;
  }

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

  .app-layout aside {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .app-layout aside p {
    display: inline-flex;
    margin-right: 6px;
  }

  .mock-main {
    padding: 18px;
  }

  .mock-drop {
    min-height: 170px;
  }

  footer {
    flex-direction: column;
    padding: 24px 18px;
  }
}