:root {
  --bg-app: #f6f1e8;
  --bg-panel: #fbf7ef;
  --bg-card: #ffffff;
  --bg-soft: #fff3ec;
  --paper: #fffaf1;
  --border: #ded4c5;
  --border-strong: #cbbca9;
  --text: #201915;
  --text-secondary: #655c52;
  --text-muted: #978b7c;
  --primary: #f4511e;
  --primary-hover: #e64718;
  --teal: #1a8a7d;
  --gold: #d4a24e;
  --blue: #3a6ea5;
  --shadow: 0 24px 70px rgba(72, 48, 26, 0.15);
  color: var(--text);
  background: var(--bg-app);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse at 50% 22%, rgba(244, 81, 30, 0.13), transparent 38%),
    radial-gradient(ellipse at 74% 38%, rgba(19, 137, 121, 0.11), transparent 34%),
    linear-gradient(180deg, rgba(255, 251, 242, 0.9), rgba(246, 241, 232, 0)),
    linear-gradient(90deg, rgba(32, 25, 21, 0.035) 1px, transparent 1px),
    var(--bg-app);
  background-size: auto, 92px 92px, auto;
}

.global-trail-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  mix-blend-mode: multiply;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 max(28px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(222, 212, 197, 0.82);
  background: rgba(255, 250, 241, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

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

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 650;
}

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

.nav-cta {
  padding: 10px 14px;
  border: 1px solid var(--primary);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--primary);
}

.hero {
  min-height: min(760px, calc(100vh - 68px));
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(222, 212, 197, 0.86);
}

.hero-inner {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 84px 0 76px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-copy {
  display: flex;
  align-items: center;
  flex-direction: column;
  min-width: 0;
  max-width: 840px;
  text-align: center;
}

.hero-logo-mark {
  width: 72px;
  height: 72px;
  margin-bottom: 20px;
  border-radius: 18px;
  box-shadow: 0 20px 58px rgba(72, 48, 26, 0.16);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--teal);
  font-size: 13px;
  font-weight: 750;
}

.hero h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(68px, 9vw, 138px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero h2 {
  margin: 18px 0 0;
  max-width: 780px;
  font-size: clamp(27px, 3.6vw, 48px);
  line-height: 1.32;
  letter-spacing: 0;
  font-weight: 760;
}

.hero p {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--text-secondary);
  font-size: 18px;
  line-height: 1.78;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: #fff;
  color: var(--text);
  font-weight: 760;
  box-shadow: 0 1px 0 rgba(32, 25, 21, 0.04);
}

.button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.button.primary:hover {
  background: var(--primary-hover);
}

.hero-proof {
  justify-content: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 650;
}

.hero-proof span {
  padding: 8px 10px;
  border: 1px solid rgba(230, 225, 218, 0.82);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.54);
}

.section {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 88px 0;
}

.hero + .section {
  padding-top: 64px;
}

.section-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 30px;
}

.section-kicker {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.section h2,
.legal-main h1 {
  margin: 8px 0 0;
  font-size: 40px;
  line-height: 1.16;
  letter-spacing: 0;
}

.section-lead {
  max-width: 520px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

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

.screenshot-card,
.feature-card,
.member-card,
.download-card,
.log-item,
.contact-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
}

.screenshot-card {
  overflow: hidden;
  box-shadow: 0 14px 45px rgba(72, 48, 26, 0.08);
}

.screenshot-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #f8f3ea;
}

.screenshot-card.wide {
  grid-column: 1 / -1;
}

.screenshot-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 650;
  background: rgba(255, 255, 255, 0.74);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.feature-card {
  min-height: 148px;
  padding: 20px;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--primary);
  font-weight: 850;
}

.feature-card h3,
.member-card h3,
.download-card h3,
.contact-card h3 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0;
}

.feature-card p,
.member-card p,
.download-card p,
.contact-card p {
  margin: 10px 0 0;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 14px;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.workflow-step {
  position: relative;
  padding: 18px;
  min-height: 128px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: linear-gradient(180deg, #fff, #faf9f6);
}

.workflow-step span {
  color: var(--primary);
  font-size: 13px;
  font-weight: 850;
}

.workflow-step strong {
  display: block;
  margin-top: 16px;
  font-size: 18px;
}

.workflow-step p {
  margin: 8px 0 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.member-card,
.download-card,
.contact-card {
  padding: 22px;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: start;
  gap: 10px;
  color: var(--text-secondary);
  line-height: 1.55;
}

.check-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--teal);
  flex: 0 0 auto;
}

.download-row {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.download-row div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #faf9f7;
}

.status-pill {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
}

.log-list {
  display: grid;
  gap: 10px;
}

.log-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 18px;
}

.log-date {
  color: var(--primary);
  font-weight: 850;
}

.log-item h3 {
  margin: 0;
  font-size: 17px;
}

.log-item p {
  margin: 7px 0 0;
  color: var(--text-secondary);
  line-height: 1.65;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.legal-links a {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 14px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.pay-main {
  width: min(1100px, calc(100% - 48px));
  margin: 0 auto;
  padding: 58px 0 86px;
}

.pay-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: end;
  padding: 34px 0 38px;
  border-bottom: 1px solid var(--border);
}

.pay-hero h1 {
  margin: 8px 0 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
}

.pay-hero p {
  max-width: 660px;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.8;
}

.pay-status-strip {
  display: grid;
  gap: 10px;
}

.pay-status-strip span {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--text-secondary);
  font-weight: 740;
}

.pay-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.98fr);
  gap: 18px;
  margin-top: 26px;
}

.pay-panel {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 250, 241, 0.86);
  box-shadow: 0 18px 54px rgba(72, 48, 26, 0.1);
}

.pay-panel-header h2 {
  margin: 6px 0 0;
  font-size: 26px;
}

.plan-options {
  display: grid;
  gap: 12px;
  margin: 22px 0;
}

.plan-option {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 16px;
  min-height: 92px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.plan-option:hover,
.plan-option.is-selected {
  border-color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(244, 81, 30, 0.32);
}

.plan-option span {
  font-weight: 840;
}

.plan-option strong {
  color: var(--primary);
  font-size: 24px;
}

.plan-option small {
  grid-column: 1 / -1;
  color: var(--text-secondary);
  line-height: 1.55;
}

.field-label {
  display: grid;
  gap: 8px;
  margin-top: 14px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 720;
}

.field-label input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.field-label input:focus {
  outline: 2px solid rgba(244, 81, 30, 0.22);
  border-color: var(--primary);
}

.pay-submit {
  width: 100%;
  margin-top: 18px;
}

.pay-submit:disabled {
  cursor: wait;
  opacity: 0.72;
}

.recovery-panel {
  margin-top: 18px;
}

.recovery-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 14px;
  align-items: end;
  margin-top: 12px;
}

.recovery-form .field-label {
  margin-top: 0;
}

.recovery-submit {
  min-height: 44px;
  white-space: nowrap;
}

.recovery-submit:disabled {
  cursor: wait;
  opacity: 0.72;
}

.payment-panel {
  display: grid;
  align-content: start;
  gap: 18px;
}

.qr-frame {
  display: grid;
  place-items: center;
  min-height: 310px;
  padding: 22px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: var(--paper);
}

.qr-frame canvas {
  width: 260px;
  height: 260px;
  border-radius: 8px;
  background: var(--paper);
}

.qr-frame p {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 14px;
}

.order-meta {
  display: grid;
  gap: 6px;
  color: var(--text-secondary);
  font-weight: 720;
}

.order-meta p {
  margin: 0;
  overflow-wrap: anywhere;
}

.activation-box {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid rgba(26, 138, 125, 0.36);
  border-radius: 8px;
  background: rgba(26, 138, 125, 0.08);
}

.activation-box[hidden] {
  display: none;
}

.activation-box span {
  color: var(--teal);
  font-weight: 820;
}

.activation-box code {
  padding: 12px;
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.pay-note {
  margin: 14px 0 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.75;
}

.site-footer {
  padding: 30px 40px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
}

.site-footer p {
  margin: 8px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  color: var(--text-secondary);
  font-weight: 700;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-record {
  color: var(--text-muted);
}

.legal-main {
  width: min(880px, calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 82px;
}

.legal-note {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--text-secondary);
  line-height: 1.7;
}

.legal-section {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.legal-section h2 {
  margin: 0 0 12px;
  font-size: 22px;
}

.legal-section p,
.legal-section li {
  color: var(--text-secondary);
  line-height: 1.85;
}

.legal-section ul {
  padding-left: 20px;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding: 16px 24px;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding: 64px 0 70px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero h2 {
    font-size: 23px;
  }

  .section-header,
  .split,
  .screenshot-gallery,
  .pay-hero,
  .pay-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .recovery-form {
    grid-template-columns: 1fr;
  }

  .screenshot-card.wide {
    grid-column: auto;
  }

  .feature-grid,
  .workflow,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .site-header,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .nav-links {
    gap: 14px;
    font-size: 13px;
  }

  .hero-inner,
  .section,
  .legal-main,
  .pay-main {
    width: min(100% - 32px, 1180px);
  }

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

  .hero h2 {
    font-size: 20px;
  }

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

  .section {
    padding: 58px 0;
  }

  .section h2,
  .legal-main h1 {
    font-size: 28px;
  }

  .button {
    width: 100%;
  }

  .download-row div {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .quiet-card,
  .nebula-word,
  .nebula-lines path {
    animation: none;
  }
}