:root {
  --site-ink: #102027;
  --site-muted: #53666f;
  --site-bg: #f7faf8;
  --site-surface: #ffffff;
  --site-line: #d8e4df;
  --site-teal: #087f7a;
  --site-teal-dark: #075c5c;
  --site-coral: #d05d45;
  --site-amber: #d49a2a;
  --site-blue: #2574d9;
  --site-shadow: 0 18px 44px rgba(16, 32, 39, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.site-body {
  margin: 0;
  color: var(--site-ink);
  background: var(--site-bg);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 32px;
  background: rgba(247, 250, 248, 0.92);
  border-bottom: 1px solid rgba(216, 228, 223, 0.9);
  backdrop-filter: blur(14px);
}

.brand-mark,
.site-nav,
.hero-actions,
.footer-actions,
.footer-links,
.pricing-row {
  display: flex;
  align-items: center;
}

.brand-mark {
  gap: 10px;
  min-width: 170px;
  font-weight: 800;
}

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

.site-nav {
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a,
.secondary-action,
.primary-action,
.command-button {
  min-height: 42px;
  border-radius: 8px;
  font-weight: 700;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  color: var(--site-muted);
}

.site-nav a:hover {
  color: var(--site-teal-dark);
  background: #e8f5f1;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 82svh;
  max-height: 760px;
  display: flex;
  align-items: center;
  padding: 64px 32px;
  color: #ffffff;
  background-color: #102027;
  background-image: url("/static/site-hero-reminder-bot.png");
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(16, 32, 39, 0.72);
}

.hero-content {
  position: relative;
  width: min(680px, 100%);
}

.hero-logo-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-weight: 900;
  backdrop-filter: blur(10px);
}

.hero-logo-pill img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: #ffffff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--site-amber);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1,
.privacy-hero h1 {
  margin: 0;
  font-size: 3.5rem;
  line-height: 1.05;
}

.hero-lead {
  max-width: 620px;
  margin: 18px 0 0;
  font-size: 1.22rem;
}

.hero-kicker {
  margin: 18px 0 0;
  color: #ffffff;
  font-size: 1.55rem;
  font-weight: 900;
}

.hero-lead[lang="en"] {
  color: rgba(255, 255, 255, 0.78);
}

.hero-price {
  display: inline-grid;
  grid-template-columns: auto;
  gap: 2px;
  min-width: 230px;
  margin-top: 24px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.hero-price span,
.hero-price small {
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.hero-price strong {
  color: #ffffff;
  font-size: 1.7rem;
  line-height: 1.15;
}

.hero-bot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: min(520px, 100%);
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.hero-bot span {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.hero-bot strong {
  display: block;
  color: #ffffff;
  overflow-wrap: anywhere;
  font-size: 1.22rem;
}

.copy-button {
  display: inline-grid;
  grid-template-columns: 1fr;
  min-width: 92px;
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: #ffffff;
  color: var(--site-teal-dark);
  cursor: pointer;
  font: inherit;
}

.copy-button span {
  color: var(--site-teal-dark);
  font-weight: 900;
}

.copy-button small {
  color: var(--site-muted);
  font-weight: 700;
}

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

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
}

.primary-action {
  background: var(--site-coral);
  color: #ffffff;
}

.primary-action:hover {
  background: #b94d38;
}

.secondary-action {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.32);
  color: #ffffff;
}

.secondary-action:hover {
  background: rgba(255, 255, 255, 0.2);
}

.section-band {
  padding: 72px 32px;
}

.intro-band,
.feedback-band,
.product-flow,
.pricing-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 28px;
  align-items: center;
  width: min(1160px, 100%);
  margin: 0 auto;
}

.section-copy h2,
.section-heading h2 {
  margin: 0;
  font-size: 2.25rem;
  line-height: 1.18;
}

.section-copy p,
.section-heading p {
  color: var(--site-muted);
}

.section-copy p[lang="zh"],
.section-heading p[lang="zh"] {
  color: var(--site-ink);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.signal-item,
.feature-card,
.price-block,
.command-card,
.flow-panel,
.policy-section {
  border: 1px solid var(--site-line);
  border-radius: 8px;
  background: var(--site-surface);
  box-shadow: var(--site-shadow);
}

.signal-item {
  min-height: 132px;
  padding: 18px;
}

.signal-item strong {
  display: block;
  color: var(--site-teal-dark);
  font-size: 1.35rem;
}

.signal-item span {
  display: block;
  margin-top: 8px;
  color: var(--site-muted);
}

.feature-band,
.command-band {
  background: #eef7f3;
}

.section-heading {
  width: min(760px, 100%);
  margin: 0 auto 28px;
  text-align: center;
}

.feature-grid,
.command-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  width: min(1160px, 100%);
  margin: 0 auto;
}

.feature-card,
.command-card {
  min-height: 265px;
  padding: 20px;
}

.feature-number {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #e4f1ff;
  color: var(--site-blue);
  font-weight: 900;
}

.feature-card h3 {
  margin: 20px 0 10px;
  font-size: 1.18rem;
}

.feature-card p,
.command-card span {
  color: var(--site-muted);
}

.product-flow {
  grid-template-columns: minmax(280px, 0.92fr) minmax(0, 1.08fr);
}

.flow-panel {
  display: grid;
  gap: 12px;
  padding: 22px;
  background: #102027;
}

.message-row {
  width: min(84%, 460px);
  padding: 12px 14px;
  border-radius: 8px;
  color: #ffffff;
}

.message-row.incoming {
  justify-self: end;
  background: var(--site-teal);
}

.message-row.outgoing {
  justify-self: start;
  background: #2c3d44;
}

.pricing-band {
  background: #fff8e7;
}

.feedback-band {
  background: #ffffff;
}

.feedback-reward {
  display: grid;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--site-line);
  border-radius: 8px;
  background: #102027;
  color: #ffffff;
  box-shadow: var(--site-shadow);
}

.feedback-reward span {
  color: var(--site-amber);
  font-weight: 900;
  text-transform: uppercase;
}

.feedback-reward strong {
  font-size: 2.15rem;
  line-height: 1.1;
}

.feedback-reward p {
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.78);
}

.feedback-reward .primary-action {
  width: fit-content;
}

.pricing-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.price-block {
  padding: 24px;
}

.price-block span {
  display: block;
  color: var(--site-muted);
  font-weight: 800;
}

.price-block strong {
  display: block;
  margin: 8px 0 14px;
  color: var(--site-teal-dark);
  font-size: 2rem;
}

.command-card {
  text-align: left;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.command-card:hover {
  transform: translateY(-2px);
  border-color: rgba(8, 127, 122, 0.42);
}

.command-card strong {
  display: block;
  color: var(--site-coral);
  font-size: 1.55rem;
}

.command-card span {
  display: block;
  margin-top: 12px;
}

.privacy-main {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.privacy-hero {
  margin-bottom: 28px;
}

.privacy-hero p {
  color: var(--site-muted);
}

.privacy-hero p[lang="zh"] {
  color: var(--site-ink);
}

.policy-layout {
  display: grid;
  gap: 14px;
}

.policy-section {
  padding: 22px;
  box-shadow: none;
}

.policy-section h2 {
  margin: 0 0 12px;
  font-size: 1.28rem;
}

.policy-section p {
  margin: 0 0 12px;
}

.policy-section p:last-child,
.policy-section ul:last-child {
  margin-bottom: 0;
}

.policy-section ul {
  margin: 0;
  padding-left: 22px;
}

.policy-section li + li {
  margin-top: 8px;
}

.policy-section a {
  color: var(--site-teal-dark);
  font-weight: 800;
}

.site-footer {
  background: var(--site-ink);
  color: #ffffff;
  padding: 34px 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.95fr) minmax(300px, 1.2fr) auto;
  gap: 18px;
  align-items: center;
  width: min(1160px, 100%);
  margin: 0 auto;
}

.footer-copy p {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.footer-actions {
  gap: 10px;
  flex-wrap: wrap;
}

.command-button {
  display: inline-grid;
  grid-template-columns: 1fr;
  min-width: 96px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
}

.command-button span {
  font-weight: 900;
}

.command-button small {
  color: rgba(255, 255, 255, 0.66);
}

.footer-links {
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

.footer-links a:hover {
  color: #ffffff;
}

@media (max-width: 1040px) {
  .feature-grid,
  .command-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-band,
  .feedback-band,
  .product-flow,
  .pricing-row,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
    padding: 12px 18px;
    align-items: flex-start;
  }

  .brand-mark {
    min-width: auto;
  }

  .site-nav {
    gap: 4px;
  }

  .site-nav a {
    padding: 7px 9px;
  }

  .hero {
    min-height: 84svh;
    padding: 44px 20px;
    background-position: 58% center;
  }

  .hero h1,
  .privacy-hero h1 {
    font-size: 2.35rem;
  }

  .hero-lead {
    font-size: 1.04rem;
  }

  .hero-bot {
    align-items: stretch;
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }

  .section-band {
    padding: 50px 20px;
  }

  .section-copy h2,
  .section-heading h2 {
    font-size: 1.75rem;
  }

  .signal-grid,
  .feature-grid,
  .command-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .command-card {
    min-height: 0;
  }

  .price-block strong {
    font-size: 1.55rem;
  }

  .site-footer {
    padding: 28px 20px;
  }
}