:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1d2129;
  --muted: #4e5969;
  --muted-2: #86909c;
  --line: rgba(0, 0, 0, 0.08);
  --shadow: 0 14px 40px rgba(15, 19, 27, 0.12);

  --primary: #165dff;
  --primary-2: #88c4ff;
  --success: #34c759;
  --warn: #ff7d00;
  --danger: #f04438;

  --radius: 18px;
  --radius-lg: 26px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, rgba(22, 93, 255, 0.16), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(52, 199, 89, 0.14), transparent 55%),
    var(--bg);
}

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

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.95em;
}

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

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  transform: translateY(-200%);
  transition: transform 0.2s ease;
  z-index: 9999;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(247, 248, 250, 0.6);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.site-header.is-elevated {
  border-bottom-color: var(--line);
  box-shadow: 0 10px 24px rgba(15, 19, 27, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--primary);
  background: rgba(22, 93, 255, 0.12);
  border: 1px solid rgba(22, 93, 255, 0.22);
}

.brand-mark svg {
  width: 26px;
  height: 26px;
}

.brand-name {
  font-weight: 900;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
}

.nav-link {
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}

.nav-link:hover {
  background: rgba(22, 93, 255, 0.08);
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 800;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #0d47ff);
  color: #fff;
  box-shadow: 0 14px 26px rgba(22, 93, 255, 0.26);
}

.btn-primary:hover {
  filter: brightness(1.02);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.95);
}

.hero {
  padding: 56px 0 26px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: start;
}

.hero-kicker {
  margin: 0 0 10px;
  color: var(--muted-2);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.hero-title {
  margin: 0;
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.3px;
}

.hero-subtitle {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.hero-highlights {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.hero-highlights li {
  display: flex;
  gap: 10px;
}

.hero-highlights li::before {
  content: "";
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border-radius: 99px;
  background: linear-gradient(180deg, var(--primary), rgba(22, 93, 255, 0.25));
}

.glass-card {
  border-radius: 26px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  padding: 18px;
  overflow: hidden;
}

.mini-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 13px;
  color: var(--text);
  background: rgba(22, 93, 255, 0.09);
  border: 1px solid rgba(22, 93, 255, 0.14);
}

.mini-dots {
  display: inline-flex;
  gap: 6px;
}

.mini-dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.12);
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 14px 14px 12px;
  border-radius: 18px;
  background: rgba(247, 248, 250, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.metric-value {
  font-weight: 950;
  font-size: 22px;
}

.metric-warn {
  color: var(--warn);
}

.metric-label {
  margin-top: 4px;
  color: var(--muted-2);
  font-weight: 700;
  font-size: 12px;
}

.mini-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.mini-item {
  display: grid;
  grid-template-columns: max-content 1fr max-content;
  align-items: center;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.mini-item-title {
  font-weight: 800;
}

.mini-item-meta {
  color: var(--muted-2);
  font-weight: 700;
  font-size: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.04);
  color: var(--muted);
}

.tag-ok {
  background: rgba(52, 199, 89, 0.12);
  border-color: rgba(52, 199, 89, 0.25);
  color: #0b6b2a;
}

.tag-warn {
  background: rgba(255, 125, 0, 0.12);
  border-color: rgba(255, 125, 0, 0.25);
  color: #8a4100;
}

.tag-danger {
  background: rgba(240, 68, 56, 0.12);
  border-color: rgba(240, 68, 56, 0.22);
  color: #8c1b15;
}

.hero-note {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px dashed rgba(22, 93, 255, 0.35);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.65);
  font-size: 13px;
  line-height: 1.6;
}

.section {
  padding: 46px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.section-title {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.2px;
}

.section-subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 26px rgba(15, 19, 27, 0.08);
  padding: 18px 18px 16px;
  display: grid;
  gap: 10px;
  min-height: 168px;
}

.feature-icon {
  width: 44px;
  height: 44px;
}

.feature-icon-plain {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(22, 93, 255, 0.08);
  border: 1px solid rgba(22, 93, 255, 0.16);
  font-size: 20px;
}

.card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 900;
}

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

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.step {
  display: flex;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 26px rgba(15, 19, 27, 0.06);
}

.step-num {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 950;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #0d47ff);
  box-shadow: 0 10px 20px rgba(22, 93, 255, 0.22);
}

.step-title {
  margin: 0;
  font-weight: 950;
  font-size: 16px;
}

.step-desc {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.phone {
  border-radius: 30px;
  background: #0f172a;
  padding: 14px;
  box-shadow: 0 22px 60px rgba(15, 19, 27, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.phone-top {
  height: 22px;
  border-radius: 20px;
  margin-bottom: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
}

.phone-screen {
  border-radius: 22px;
  background: #f7f8fa;
  padding: 14px;
  display: grid;
  gap: 12px;
}

.shot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.shot-title {
  font-weight: 950;
}

.shot-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.chip {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 850;
  font-size: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
}

.chip-warn {
  background: rgba(255, 125, 0, 0.12);
  border-color: rgba(255, 125, 0, 0.22);
  color: #8a4100;
}

.chip-danger {
  background: rgba(240, 68, 56, 0.12);
  border-color: rgba(240, 68, 56, 0.22);
  color: #8c1b15;
}

.shot-card {
  padding: 12px;
  border-radius: 18px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: #fff;
}

.shot-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-weight: 850;
}

.shot-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.shot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 10px;
  border-radius: 14px;
  background: rgba(247, 248, 250, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.05);
  font-size: 13px;
}

.shot-avatars {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.shot-avatars span {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(22, 93, 255, 0.42), rgba(22, 93, 255, 0.12));
  border: 1px solid rgba(22, 93, 255, 0.2);
}

.try-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
  align-items: center;
}

.try-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.qrcode-frame {
  border-radius: 28px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 18px 48px rgba(15, 19, 27, 0.12);
  padding: 14px;
  display: grid;
  place-items: center;
  min-height: 280px;
  position: relative;
  overflow: hidden;
}

.qrcode-img {
  width: min(240px, 100%);
  height: auto;
  border-radius: 18px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
}

.qrcode-placeholder {
  width: min(240px, 100%);
  aspect-ratio: 1 / 1;
  border-radius: 18px;
  border: 1px dashed rgba(22, 93, 255, 0.35);
  background: rgba(22, 93, 255, 0.06);
  display: none;
  place-items: center;
  padding: 18px;
  text-align: center;
  gap: 8px;
}

.qrcode-frame[data-empty] .qrcode-placeholder {
  display: grid;
}

.qrcode-title {
  font-weight: 950;
}

.qrcode-desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

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

.faq-item {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 10px 26px rgba(15, 19, 27, 0.06);
  padding: 2px 14px;
}

.faq-item summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 900;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-body {
  padding: 0 0 14px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.privacy-card {
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 10px 26px rgba(15, 19, 27, 0.06);
  padding: 18px;
}

.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.site-footer {
  padding: 26px 0 30px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 18px;
}

.footer-brand {
  font-weight: 950;
}

.footer-link {
  color: var(--muted);
  font-weight: 800;
}

.icp-link {
  color: var(--muted);
  font-weight: 800;
}

.footer-link:hover {
  color: var(--text);
}

.icp-link:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 13px;
  line-height: 1.7;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  background: rgba(17, 24, 39, 0.88);
  color: #fff;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.25);
  z-index: 20;
  font-weight: 800;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero-grid,
  .try-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 560px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .header-inner {
    padding: 12px 0;
  }

  .hero {
    padding-top: 38px;
  }

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

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