:root {
  --blue: #1877e8;
  --blue-strong: #075bc4;
  --blue-soft: #ecf5ff;
  --blue-line: #d4e6fb;
  --ink: #10223c;
  --text: #53657e;
  --subtle: #7e91aa;
  --surface: #ffffff;
  --background: #f6faff;
  --green: #12a56d;
  --shadow: 0 28px 64px rgba(26, 75, 135, .1);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--surface);
  color: var(--ink);
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid rgba(212, 230, 251, .7);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(18px);
}

.project-link-bar {
  border-bottom: 1px solid rgba(212, 230, 251, .65);
  background: linear-gradient(90deg, #eff7ff, #ffffff);
  color: var(--text);
  font-size: 13px;
}

.project-link-bar .container {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.project-link-bar a {
  color: var(--blue);
  font-weight: 800;
}

.project-link-bar a::after {
  content: " ->";
}

.nav {
  height: 78px;
  display: flex;
  align-items: center;
  gap: 34px;
}

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

.brand img {
  border-radius: 13px;
  box-shadow: 0 8px 20px rgba(24, 119, 232, .16);
}

.brand span {
  display: grid;
  gap: 2px;
}

.brand strong {
  font-size: 18px;
  letter-spacing: .01em;
}

.nav-links {
  display: flex;
  gap: 30px;
  margin-left: auto;
  color: var(--text);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--blue);
}

.button {
  min-height: 52px;
  padding: 0 25px;
  border: 1px solid transparent;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 700;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

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

.button-small {
  min-height: 45px;
  padding: 0 21px;
  color: white;
  background: var(--blue);
}

.button-primary {
  color: white;
  background: linear-gradient(130deg, var(--blue-strong), #2490fb);
  box-shadow: 0 14px 30px rgba(24, 119, 232, .25);
}

.button-primary:hover {
  box-shadow: 0 18px 34px rgba(24, 119, 232, .34);
}

.button-primary svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.button-secondary {
  color: var(--blue-strong);
  border-color: var(--blue-line);
  background: var(--surface);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 84px;
  background:
    radial-gradient(circle at 72% 37%, rgba(34, 141, 250, .13), transparent 29%),
    linear-gradient(180deg, #fff 0%, #f5faff 100%);
}

.hero-glow {
  position: absolute;
  top: -120px;
  right: -140px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(213, 234, 255, .46);
  filter: blur(24px);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 62px;
  align-items: center;
}

.pill {
  width: fit-content;
  padding: 9px 16px;
  border: 1px solid var(--blue-line);
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-strong);
  background: var(--blue-soft);
  font-size: 14px;
  font-weight: 700;
}

.dot {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
}

.dot::after {
  position: absolute;
  inset: -5px;
  border: 1px solid rgba(18, 165, 109, .3);
  border-radius: 50%;
  content: "";
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(.6); }
  100% { opacity: 0; transform: scale(1.8); }
}

h1 {
  margin: 24px 0 18px;
  font-size: clamp(44px, 5.2vw, 61px);
  line-height: 1.14;
  letter-spacing: -.055em;
}

h1 span {
  color: var(--blue);
}

.hero-text {
  max-width: 535px;
  margin: 0;
  color: var(--text);
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  margin: 38px 0 13px;
  display: flex;
  gap: 14px;
}

.download-note {
  margin: 0 0 34px;
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.7;
}

.quick-facts {
  display: flex;
  gap: 30px;
}

.quick-facts div {
  display: grid;
  gap: 5px;
}

.quick-facts div + div {
  border-left: 1px solid var(--blue-line);
  padding-left: 30px;
}

.quick-facts strong {
  color: var(--blue-strong);
  font-size: 25px;
}

.quick-facts span {
  color: var(--subtle);
  font-size: 14px;
}

.hero-visual {
  position: relative;
  padding-bottom: 74px;
}

.status-card {
  padding: 27px;
  border: 1px solid #e4eefb;
  border-radius: 27px;
  background: white;
  box-shadow: var(--shadow);
}

.status-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 30px;
}

.status-icon {
  width: 53px;
  height: 53px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: var(--blue-soft);
  color: var(--blue);
}

.status-icon svg {
  width: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.status-top small,
.status-grid small {
  display: block;
  color: var(--subtle);
  font-size: 13px;
  margin-bottom: 4px;
}

.status-top strong {
  font-size: 22px;
}

.active {
  margin-left: auto;
  padding: 7px 12px;
  border-radius: 30px;
  color: var(--green);
  background: #ebfff6;
  font-size: 13px;
  font-weight: 700;
}

.progress-label {
  margin-bottom: 11px;
  display: flex;
  justify-content: space-between;
  color: var(--text);
  font-size: 14px;
}

.progress-label strong {
  color: var(--blue);
}

.progress {
  height: 8px;
  border-radius: 9px;
  overflow: hidden;
  background: #e5f0fd;
}

.progress span {
  display: block;
  width: 84%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), #58b7ff);
  animation: breathe 2.8s ease-in-out infinite;
}

@keyframes breathe {
  50% { opacity: .72; }
}

.status-grid {
  margin-top: 29px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.status-grid article {
  padding: 16px 17px;
  border-radius: 15px;
  background: #f7faff;
}

.status-grid strong {
  display: block;
  margin-bottom: 5px;
  font-size: 19px;
}

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

.activity-card {
  position: absolute;
  right: -18px;
  bottom: 0;
  width: 275px;
  padding: 18px 19px;
  border: 1px solid #edf3fc;
  border-radius: 18px;
  background: white;
  box-shadow: 0 18px 44px rgba(31, 75, 125, .12);
}

.activity-card p {
  margin: 0 0 13px;
  color: var(--ink);
  font-weight: 700;
}

.activity-card p span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 7px;
  background: var(--green);
}

.activity-card div {
  padding: 7px 0;
  color: var(--text);
  font-size: 12px;
}

.activity-card div + div {
  border-top: 1px solid #f0f4fa;
}

.activity-card strong {
  margin-right: 8px;
  color: var(--ink);
}

.trust {
  border-top: 1px solid #e7f0fc;
  border-bottom: 1px solid #e7f0fc;
  background: white;
}

.trust-bar {
  min-height: 78px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 38px;
  color: #7387a3;
  font-size: 14px;
  font-weight: 600;
}

.trust-bar span {
  width: 1px;
  height: 23px;
  background: #deebfa;
}

.section {
  padding: 91px 0;
}

.section-heading {
  max-width: 680px;
  margin: 0 auto 54px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .12em;
}

.section-heading h2,
.download-card h2 {
  margin: 0 0 15px;
  font-size: clamp(31px, 3.2vw, 40px);
  letter-spacing: -.045em;
}

.section-heading > p:last-child {
  margin: 0;
  color: var(--text);
  font-size: 17px;
  line-height: 1.7;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature {
  padding: 30px 27px 29px;
  border: 1px solid #e4edf9;
  border-radius: 21px;
  background: white;
  transition: transform .22s ease, box-shadow .22s ease;
}

.feature:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 35px rgba(22, 71, 130, .08);
}

.feature-accent {
  border-color: #cee3fc;
  background: linear-gradient(145deg, #f5faff, white);
}

.feature-icon {
  width: 43px;
  height: 43px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 13px;
  font-weight: 800;
}

.feature h3 {
  margin: 20px 0 12px;
  font-size: 20px;
}

.feature p {
  margin: 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
}

.showcase {
  background: var(--background);
}

.showcase-feature {
  margin-bottom: 26px;
  display: grid;
  grid-template-columns: .38fr .62fr;
  gap: 26px;
  align-items: center;
}

.showcase-copy {
  padding: 15px 24px 15px 0;
}

.tag {
  width: fit-content;
  margin: 0 0 19px;
  padding: 7px 13px;
  border-radius: 30px;
  color: var(--blue);
  background: #e9f4ff;
  font-size: 13px;
  font-weight: 700;
}

.showcase-copy h3 {
  margin: 0 0 14px;
  font-size: 29px;
  letter-spacing: -.03em;
}

.showcase-copy > p:not(.tag) {
  color: var(--text);
  line-height: 1.75;
}

.showcase-copy ul {
  margin: 25px 0 0;
  padding: 0;
  list-style: none;
  color: var(--text);
  font-size: 15px;
}

.showcase-copy li {
  margin: 13px 0;
  display: flex;
  gap: 11px;
}

.showcase-copy li::before {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  content: "\2713";
  flex: 0 0 auto;
  color: var(--blue);
  background: #e2f0ff;
  text-align: center;
  font-size: 12px;
  line-height: 19px;
  font-weight: 700;
}

.app-frame {
  overflow: hidden;
  border: 1px solid #e1ebf8;
  border-radius: 19px;
  background: white;
  box-shadow: 0 13px 36px rgba(29, 76, 131, .07);
}

.app-frame img {
  width: 100%;
}

.app-frame figcaption {
  padding: 13px 17px;
  border-top: 1px solid #eef4fb;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 17px;
  align-items: start;
}

.gallery .app-frame {
  grid-column: span 2;
}

.steps-section {
  padding-bottom: 82px;
}

.steps-grid {
  display: grid;
  grid-template-columns: .39fr .61fr;
  gap: 55px;
  align-items: center;
}

.section-heading.aligned {
  margin: 0;
  text-align: left;
}

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

.steps article {
  padding: 21px 23px;
  border: 1px solid #e4edf9;
  border-radius: 18px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.steps article strong {
  width: 43px;
  height: 43px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 18px;
}

.steps h3 {
  margin: 0 0 5px;
  font-size: 18px;
}

.steps p {
  margin: 0;
  color: var(--text);
  line-height: 1.5;
}

.download-section {
  padding: 0 0 92px;
}

.download-card {
  padding: 40px 45px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 27px;
  background: linear-gradient(110deg, #eff7ff 0%, #f8fbff 52%, white 100%);
  border: 1px solid #dceafb;
}

.download-card img {
  border-radius: 21px;
}

.download-card div {
  flex: 1;
}

.download-card h2 {
  margin-bottom: 8px;
  font-size: 30px;
}

.download-card div > p:last-child {
  margin: 0;
  color: var(--text);
}

.footer {
  padding: 39px 0 43px;
  border-top: 1px solid #e4edf9;
  color: var(--text);
  text-align: center;
}

.footer-project-link {
  width: min(520px, 100%);
  margin: 0 auto 28px;
  padding: 17px 20px;
  border: 1px solid #dbeafb;
  border-radius: 18px;
  display: grid;
  gap: 6px;
  background: #f5faff;
}

.footer-project-link span {
  color: var(--subtle);
  font-size: 13px;
  font-weight: 700;
}

.footer-project-link strong {
  color: var(--ink);
  font-size: 18px;
}

.footer-project-link em {
  color: var(--blue);
  font-size: 13px;
  font-style: normal;
  font-weight: 800;
}

.footer-brand {
  justify-content: center;
  margin-bottom: 17px;
}

.footer p {
  margin: 9px auto;
  max-width: 650px;
  font-size: 14px;
  line-height: 1.7;
}

.mobile-download {
  display: none;
}

@media (max-width: 960px) {
  .hero-grid,
  .showcase-feature,
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 55px;
  }

  .hero-copy {
    text-align: center;
  }

  .pill,
  .hero-actions {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-text {
    margin-left: auto;
    margin-right: auto;
  }

  .quick-facts {
    justify-content: center;
  }

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

  .showcase-copy {
    padding: 0;
  }

  .section-heading.aligned {
    text-align: center;
    margin: 0 auto 36px;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 34px, 1180px);
  }

  .site-header {
    position: static;
  }

  .project-link-bar .container {
    min-height: 44px;
    flex-wrap: wrap;
    gap: 4px 10px;
    text-align: center;
  }

  .nav {
    height: 70px;
    gap: 12px;
  }

  .brand img {
    width: 40px;
    height: 40px;
  }

  .brand strong {
    font-size: 16px;
  }

  .nav-links,
  .nav .button {
    display: none;
  }

  .hero {
    padding: 49px 0 62px;
  }

  h1 {
    margin-top: 21px;
    font-size: 39px;
  }

  .hero-text {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
    margin: 31px 0 11px;
  }

  .download-note {
    margin-bottom: 30px;
    font-size: 12px;
  }

  .quick-facts {
    gap: 16px;
  }

  .quick-facts div + div {
    padding-left: 16px;
  }

  .quick-facts strong {
    font-size: 21px;
  }

  .hero-visual {
    padding-bottom: 115px;
  }

  .status-card {
    padding: 20px 17px;
  }

  .status-top strong {
    font-size: 19px;
  }

  .active {
    padding: 6px 8px;
  }

  .activity-card {
    right: 12px;
    width: calc(100% - 24px);
  }

  .trust-bar {
    padding: 22px 0;
    gap: 12px;
    flex-direction: column;
  }

  .trust-bar span {
    display: none;
  }

  .section {
    padding: 65px 0;
  }

  .section-heading {
    margin-bottom: 37px;
  }

  .features,
  .gallery {
    grid-template-columns: 1fr;
  }

  .gallery .app-frame {
    grid-column: auto;
  }

  .download-section {
    padding-bottom: 86px;
  }

  .download-card {
    padding: 30px 22px;
    display: grid;
    justify-items: center;
    text-align: center;
  }

  .download-card h2 {
    font-size: 26px;
  }

  .mobile-download {
    position: fixed;
    z-index: 12;
    right: 18px;
    bottom: 18px;
    left: 18px;
    height: 54px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    color: white;
    background: linear-gradient(130deg, var(--blue-strong), #2490fb);
    box-shadow: 0 14px 32px rgba(24, 119, 232, .32);
    font-weight: 700;
  }
}