:root {
  --ink: #1d1b18;
  --subtle: #69645f;
  --line: #d8d0c7;
  --paper: #fbfaf7;
  --warm: #f3eee6;
  --red: #9d1d22;
  --red-dark: #781419;
  --gold: #b38a3f;
  --green: #2e5d4a;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
}

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

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(251, 250, 247, 0.96);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--white);
  background: var(--red);
  border-radius: 2px;
  font-size: 22px;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  letter-spacing: 0;
}

.brand small {
  color: var(--subtle);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  white-space: nowrap;
}

.site-nav a {
  padding: 8px 12px;
  border-bottom: 2px solid transparent;
  color: #35312d;
  font-size: 15px;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--red);
  border-color: var(--red);
}

.hero {
  min-height: 560px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(251, 250, 247, 0.98), rgba(251, 250, 247, 0.8)),
    url("images/hero-workspace.png") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) 420px;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(24px, 3vw, 34px);
}

h3 {
  font-size: 20px;
}

.lead {
  color: #4b4742;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-actions.center {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid var(--red);
  border-radius: 2px;
  font-weight: 700;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn.primary {
  color: var(--white);
  background: var(--red);
}

.btn.primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

.btn.ghost {
  color: var(--red);
  background: transparent;
}

.btn.ghost:hover {
  color: var(--white);
  background: var(--red);
}

.btn.full {
  width: 100%;
}

.hero-panel,
.quote-box,
.buy-box,
.order-card,
.payment-card,
.success-card,
.contact-card,
.contact-form,
.price-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 18px 40px rgba(29, 27, 24, 0.06);
}

.hero-panel {
  padding: 34px;
}

.panel-title {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 22px;
  font-weight: 800;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: #403c38;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  background: var(--gold);
}

.check-list.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 26px;
}

.section {
  padding: 76px 0;
}

.section.muted {
  background: var(--warm);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  max-width: 740px;
  margin-bottom: 34px;
  text-align: center;
}

.section-heading.left {
  margin-left: 0;
  text-align: left;
}

.section-heading p {
  color: var(--subtle);
}

.service-grid,
.price-grid,
.detail-grid,
.scenario-grid,
.policy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.service-card {
  min-height: 100%;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.service-card img {
  width: 100%;
  height: 172px;
  object-fit: cover;
  margin-bottom: 22px;
  border-radius: 2px;
  border: 1px solid var(--line);
}

.service-card p,
.price-card p,
.detail-grid p,
.business-main p,
.about-grid p {
  color: var(--subtle);
}

.service-card a,
.table-link {
  color: var(--red);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  display: grid;
  grid-template-columns: 1fr;
  align-content: start;
  gap: 16px;
  min-height: 220px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  counter-increment: step;
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  color: var(--red);
  font-size: 22px;
  font-weight: 800;
}

.steps strong,
.steps span {
  display: block;
}

.steps span {
  color: var(--subtle);
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 34px;
  background: #22201d;
  color: var(--white);
  border-radius: 2px;
}

.cta-band p {
  color: #e4ddd3;
}

.page-hero,
.product-hero {
  padding: 82px 0;
  background:
    linear-gradient(120deg, rgba(251, 250, 247, 0.96), rgba(243, 238, 230, 0.9)),
    url("images/page-pattern.svg") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-hero.compact {
  padding: 58px 0;
}

.page-hero .container {
  max-width: 880px;
}

.page-hero p {
  color: #55504a;
  font-size: 18px;
}

.business-layout,
.product-detail,
.pay-layout,
.contact-grid,
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: start;
}

.feature-list {
  display: grid;
  gap: 16px;
}

.feature-list article,
.detail-grid article,
.scenario-grid div,
.policy-grid article,
.values div {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.quote-box,
.buy-box,
.order-card,
.payment-card,
.contact-card,
.contact-form,
.price-card {
  padding: 26px;
}

.product-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--white);
}

.product-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.product-table th,
.product-table td {
  padding: 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.product-table th {
  background: #26231f;
  color: var(--white);
  font-weight: 700;
}

.product-table td > span {
  display: block;
  color: var(--subtle);
  font-size: 14px;
}

.price-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.price-card > p {
  min-height: 3.3em;
}

.price-card .btn {
  margin-top: auto;
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.price-row strong,
.amount {
  color: var(--red);
  font-size: 24px;
}

.product-detail {
  align-items: center;
}

.buy-box {
  position: sticky;
  top: 96px;
}

.sku {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.sku span,
.sku strong {
  display: block;
}

.sku strong {
  margin: 6px 0 14px;
  color: var(--red);
  font-size: 28px;
}

.order-list,
.contact-list,
.success-meta {
  margin: 0;
}

.order-list div,
.contact-list div,
.success-meta div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

dt {
  color: var(--subtle);
}

dd {
  margin: 0;
}

.pay-method {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
}

.pay-method input {
  width: auto;
  flex: 0 0 auto;
  accent-color: var(--red);
}

.pay-method small,
.pay-method strong {
  display: block;
}

.alipay-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: var(--white);
  background: #1677ff;
  border-radius: 2px;
  font-weight: 800;
}

.qr-box {
  display: grid;
  place-items: center;
  gap: 10px;
  margin: 22px 0;
  padding: 18px;
  border: 1px solid var(--line);
  background: #f7f7f7;
}

.qr-grid {
  width: 156px;
  height: 156px;
  background:
    linear-gradient(90deg, #111 10px, transparent 10px) 0 0 / 26px 26px,
    linear-gradient(#111 10px, transparent 10px) 0 0 / 26px 26px,
    #fff;
  border: 10px solid #fff;
  box-shadow: 0 0 0 1px var(--line);
}

.pay-note {
  margin-bottom: 0;
  color: var(--subtle);
  font-size: 14px;
}

.success-section {
  display: grid;
  min-height: calc(100vh - 154px);
  place-items: center;
  padding: 64px 16px;
  background: var(--warm);
}

.success-card {
  width: min(680px, 100%);
  padding: 44px;
  text-align: center;
}

.success-icon {
  display: grid;
  width: 72px;
  height: 72px;
  place-items: center;
  margin: 0 auto 20px;
  color: var(--white);
  background: var(--green);
  border-radius: 2px;
  font-size: 42px;
  font-weight: 800;
}

.success-meta {
  margin-top: 26px;
  text-align: left;
}

.contact-grid {
  grid-template-columns: 0.85fr 1.15fr;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: #38332f;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

.about-grid {
  grid-template-columns: 1fr 420px;
}

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

.values strong,
.values span,
.scenario-grid strong,
.scenario-grid span {
  display: block;
}

.values span,
.scenario-grid span {
  color: var(--subtle);
}

.site-footer {
  padding: 38px 0 22px;
  background: #22201d;
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 24px;
}

.footer-grid p {
  margin-bottom: 0;
  color: #d6cec4;
}

.footer-grid span {
  color: #c6b8a6;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #c8c0b5;
  font-size: 14px;
}

.footer-bottom a {
  color: #d8c8b3;
}

.footer-bottom a:hover {
  color: var(--white);
}

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

  .hero {
    min-height: auto;
    padding: 64px 0;
  }

  .hero-grid,
  .split,
  .business-layout,
  .product-detail,
  .pay-layout,
  .contact-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .price-grid,
  .detail-grid,
  .scenario-grid,
  .policy-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .buy-box {
    position: static;
  }

  .cta-band {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .site-nav a {
    padding: 8px 9px;
    font-size: 14px;
  }

  h1 {
    font-size: 32px;
  }

  .section,
  .page-hero,
  .product-hero {
    padding: 48px 0;
  }

  .hero-panel,
  .quote-box,
  .buy-box,
  .order-card,
  .payment-card,
  .success-card,
  .contact-card,
  .contact-form,
  .price-card,
  .cta-band {
    padding: 20px;
  }

  .check-list.two-col {
    grid-template-columns: 1fr;
  }

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

  .steps li {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .order-list div,
  .contact-list div,
  .success-meta div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}