:root {
  --ink: #211b18;
  --muted: #6f625b;
  --line: #e7ded6;
  --soft: #f8f4ef;
  --paper: #fffdf9;
  --champagne: #c9a47e;
  --rose: #b98278;
  --tech-blue: #2f7fd8;
  --tech-blue-deep: #185ca8;
  --deep: #161211;
  --shadow: 0 18px 50px rgba(59, 45, 35, 0.12);
  --radius: 8px;
  --max: 1180px;
  --font: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  line-height: 1.7;
  letter-spacing: 0;
}

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

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 253, 249, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(231, 222, 214, 0.8);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
}

.brand-logo {
  width: 106px;
  height: auto;
  display: block;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  margin-top: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #4d433d;
  font-size: 14px;
}

.nav-cta,
.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  padding: 0 18px;
  border: 1px solid var(--ink);
  font-weight: 600;
  font-size: 14px;
}

.nav-cta,
.btn.primary {
  background: linear-gradient(135deg, var(--tech-blue-deep), var(--tech-blue));
  color: #fffaf2;
  border-color: transparent;
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.6);
  border-color: var(--line);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  padding: 62px 0 42px;
  background:
    linear-gradient(105deg, rgba(255, 253, 249, 0.97) 0%, rgba(255, 253, 249, 0.9) 45%, rgba(241, 247, 255, 0.34) 100%),
    url("https://images.unsplash.com/photo-1570172619644-dfd03ed5d881?auto=format&fit=crop&w=1800&q=85") center right / cover;
}

.page-hero {
  padding: 74px 0 52px;
  background:
    linear-gradient(105deg, rgba(255, 253, 249, 0.98) 0%, rgba(255, 253, 249, 0.92) 58%, rgba(241, 247, 255, 0.48) 100%),
    url("https://images.unsplash.com/photo-1600334129128-685c5582fd35?auto=format&fit=crop&w=1800&q=85") center right / cover;
  border-bottom: 1px solid var(--line);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 13px;
}

.page-hero h1 {
  max-width: 760px;
  margin-top: 14px;
}

.page-lead {
  max-width: 760px;
  margin-top: 22px;
  color: #4f453f;
  font-size: 20px;
}

.quick-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 34px;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.quick-info div {
  background: rgba(255, 253, 249, 0.94);
  padding: 18px;
}

.quick-info b {
  display: block;
  font-size: 13px;
  color: var(--tech-blue);
}

.quick-info span {
  display: block;
  margin-top: 6px;
  font-weight: 700;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(340px, 0.72fr);
  gap: 56px;
  align-items: end;
}

.eyebrow {
  color: var(--tech-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  line-height: 1.16;
  margin: 0;
}

h1 {
  max-width: 760px;
  margin-top: 18px;
  font-family: var(--serif);
  font-size: clamp(40px, 5.2vw, 68px);
  font-weight: 600;
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

.hero-lead {
  max-width: 720px;
  margin: 24px 0 0;
  color: #4f453f;
  font-size: clamp(17px, 2.2vw, 22px);
  line-height: 1.75;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 44px;
  border: 1px solid var(--line);
  background: var(--line);
  box-shadow: var(--shadow);
}

.trust-item {
  background: rgba(255, 253, 249, 0.92);
  padding: 20px;
}

.trust-item strong {
  display: block;
  font-size: 15px;
}

.trust-item span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.hero-card {
  background: rgba(255, 253, 249, 0.88);
  border: 1px solid rgba(47, 127, 216, 0.16);
  padding: 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card h2 {
  font-family: var(--serif);
  font-size: 27px;
}

.store-mini {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.store-mini strong {
  display: block;
}

.store-mini p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

section {
  padding: 86px 0;
}

.section-head {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin-top: 12px;
  font-family: var(--serif);
  font-size: clamp(30px, 4vw, 48px);
}

.section-head p {
  color: var(--muted);
  font-size: 17px;
}

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

.dark {
  color: #fff9f1;
  background: var(--deep);
}

.dark .section-head p,
.dark .eyebrow {
  color: #d5c4b4;
}

.store-grid,
.problem-grid,
.founder-grid,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 26px;
  align-items: start;
}

.detail-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 28px;
}

.detail-panel.sticky {
  position: sticky;
  top: 94px;
}

.detail-panel h2,
.detail-panel h3 {
  font-family: var(--serif);
}

.info-list {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
}

.info-row {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.info-row b {
  color: var(--tech-blue);
  font-size: 13px;
}

.info-row span {
  color: #453b35;
}

.content-stack {
  display: grid;
  gap: 18px;
}

.content-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 28px;
}

.content-block h2,
.content-block h3 {
  font-family: var(--serif);
}

.content-block p {
  color: var(--muted);
}

.service-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.service-line {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.service-line strong {
  display: block;
  color: var(--ink);
}

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

.local-answer {
  display: grid;
  gap: 12px;
}

.local-answer div {
  padding: 18px;
  border-left: 3px solid var(--tech-blue);
  background: var(--soft);
}

.problem-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.store-card,
.problem-card,
.founder-card,
.faq-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 28px;
}

.store-card {
  min-height: 330px;
}

.store-card h3,
.problem-card h3,
.founder-card h3,
.faq-card h3 {
  font-size: 22px;
}

.store-card p,
.problem-card p,
.founder-card p,
.faq-card p {
  color: var(--muted);
}

.meta-list {
  display: grid;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  color: #4d433d;
  font-size: 14px;
}

.mini-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.mini-actions .btn {
  min-height: 38px;
  padding: 0 13px;
  font-size: 13px;
}

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.16);
}

.step {
  padding: 28px;
  background: rgba(255,255,255,.05);
}

.step b {
  color: var(--champagne);
  font-size: 13px;
}

.step h3 {
  margin-top: 12px;
}

.step p {
  color: #d5c4b4;
}

.promise {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: center;
}

.quote {
  border-left: 3px solid var(--champagne);
  padding-left: 22px;
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
}

.geo-list {
  display: grid;
  gap: 12px;
}

.geo-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.geo-row strong {
  color: var(--ink);
}

.geo-row span {
  color: var(--muted);
}

.footer-cta {
  text-align: center;
  background: linear-gradient(180deg, var(--paper), var(--soft));
}

.footer-cta h2 {
  font-family: var(--serif);
  font-size: clamp(32px, 5vw, 56px);
}

.site-footer {
  padding: 36px 0 92px;
  color: #8a7d73;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.site-footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.icp-line {
  display: inline-block;
  margin-top: 6px;
}

.mobile-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(255, 253, 249, 0.96);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.mobile-bar a {
  min-height: 58px;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
}

.mobile-bar a:first-child {
  background: linear-gradient(135deg, var(--tech-blue-deep), var(--tech-blue));
  color: #fffaf2;
}

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

  .brand-logo {
    width: 92px;
  }

  .hero {
    min-height: auto;
    padding-top: 48px;
  }

  .hero-grid,
  .promise,
  .store-grid,
  .founder-grid,
  .faq-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .problem-grid,
  .process,
  .trust-strip,
  .quick-info {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-panel.sticky {
    position: static;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 28px, var(--max));
  }

  .hero {
    background-position: 64% center;
  }

  h1 {
    font-size: 39px;
  }

  section {
    padding: 64px 0;
  }

  .problem-grid,
  .process,
  .trust-strip,
  .quick-info {
    grid-template-columns: 1fr;
  }

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

  .hero-card,
  .card,
  .store-card,
  .problem-card,
  .founder-card,
  .faq-card,
  .step {
    padding: 22px;
  }

  .mobile-bar {
    display: grid;
  }
}
