:root {
  --bg: #fffaf3;
  --surface: #ffffff;
  --surface-soft: #f7efe5;
  --ink: #2f2a24;
  --muted: #6e6255;
  --line: #e6d8c7;
  --brand: #c43d36;
  --brand-dark: #8f2c28;
  --teal: #2f6f73;
  --gold: #b78f52;
  --shadow: 0 18px 45px rgba(91, 73, 52, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  letter-spacing: 0;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 250, 243, 0.92);
  border-bottom: 1px solid rgba(230, 216, 199, 0.8);
  backdrop-filter: blur(12px);
}

.nav {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--brand-dark);
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

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

.hero {
  min-height: 72vh;
  display: flex;
  align-items: center;
  background-color: #fff6eb;
  background-image: url("hero-camera.png");
  background-repeat: no-repeat;
  background-size: auto 104%;
  background-position: right center;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 64px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--teal);
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 14px;
}

.hero h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(36px, 5vw, 68px);
  line-height: 1.08;
  font-weight: 900;
  color: var(--ink);
}

.hero-copy {
  margin: 22px 0 0;
  max-width: 640px;
  font-size: 18px;
  color: var(--muted);
}

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

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 18px;
  font-weight: 700;
  border: 1px solid var(--brand);
}

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

.button-secondary {
  background: rgba(255, 255, 255, 0.74);
  color: var(--brand-dark);
}

.status-strip {
  width: min(1120px, calc(100% - 40px));
  margin: -34px auto 0;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.status-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.status-item strong {
  display: block;
  font-size: 18px;
  color: var(--ink);
}

.status-item span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 4px;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 76px 0;
}

.section.compact {
  padding-top: 46px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.2;
}

.section-heading p {
  margin: 12px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--surface-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.card-icon img {
  width: 28px;
  height: 28px;
}

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

.card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.flow-step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 142px;
  padding: 18px;
}

.step-number {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin-bottom: 12px;
}

.flow-step strong {
  display: block;
  font-size: 17px;
}

.flow-step span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-top: 6px;
}

.info-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  align-items: start;
}

.info-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 22px;
}

.info-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.info-row:last-child {
  border-bottom: 0;
}

.info-row dt {
  color: var(--muted);
  font-weight: 700;
}

.info-row dd {
  margin: 0;
  word-break: break-word;
}

.notice {
  background: #f2fbfb;
  border: 1px solid #cde3e4;
  color: #244f52;
  border-radius: 8px;
  padding: 22px;
}

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

.notice p {
  margin: 10px 0 0;
}

.doc {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 80px;
}

.doc h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.15;
}

.doc-meta {
  color: var(--muted);
  margin-bottom: 34px;
}

.doc section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  margin: 16px 0;
}

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

.doc p,
.doc li {
  color: var(--muted);
}

.doc ul {
  padding-left: 20px;
  margin: 10px 0 0;
}

.site-footer {
  background: #2f2a24;
  color: #f8efe4;
  padding: 34px 0;
}

.footer-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: #e9d7c0;
}

.footer-note {
  color: #c9b8a5;
  font-size: 14px;
}

@media (max-width: 900px) {
  .nav {
    height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
    gap: 10px 14px;
  }

  .hero {
    min-height: 0;
    background-image: url("hero-camera.png");
    background-size: 78% auto;
    background-position: center top;
  }

  .hero-inner {
    padding-top: 330px;
  }

  .status-strip,
  .grid,
  .flow,
  .info-panel,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .status-strip {
    margin-top: 18px;
  }

  .info-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (max-width: 560px) {
  .nav,
  .hero-inner,
  .section,
  .doc,
  .footer-inner,
  .status-strip {
    width: min(100% - 28px, 1120px);
  }

  .hero-inner {
    padding: 300px 0 46px;
  }

  .hero {
    background-size: 240px auto;
    background-position: center 18px;
  }

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

  .button {
    width: 100%;
  }

  .section {
    padding: 54px 0;
  }

  .card,
  .flow-step,
  .notice,
  .doc section {
    padding: 18px;
  }
}