:root {
  --ink: #1a2332;
  --mist: #e8eef4;
  --accent: #c45c26;
  --pine: #1f4d3a;
  --sand: #f6f1ea;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  background: var(--sand);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

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

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

.wrap {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .wrap {
    padding: 0 1.5rem;
  }
}

.site-header {
  border-bottom: 1px solid rgba(26, 35, 50, 0.1);
  background: rgba(246, 241, 234, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.logo {
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 1.5rem;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: rgba(26, 35, 50, 0.8);
}

.nav a:hover {
  color: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.25rem;
  border-radius: 2px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  transition: 0.2s background, 0.2s border-color;
}

.btn--accent {
  background: var(--accent);
  color: #fff;
}

.btn--accent:hover {
  background: #b04f1f;
}

.btn--pine {
  background: var(--pine);
  color: #fff;
}

.btn--pine:hover {
  background: #173b2c;
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline {
  border-color: rgba(26, 35, 50, 0.2);
  background: #fff;
}

.btn--sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
}

main {
  flex: 1;
}

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #1a2332;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, #2d4a3e 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, #5a3218 0%, transparent 35%);
}

.hero__inner {
  position: relative;
  padding: 5rem 0 6rem;
}

.hero .eyebrow {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.55);
}

.hero h1 {
  margin: 1rem 0 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: clamp(2.8rem, 8vw, 4.5rem);
  line-height: 1.05;
}

.hero .lead {
  margin: 1.25rem 0 0;
  max-width: 36rem;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.75);
}

.hero .actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.banner {
  background: rgba(196, 92, 38, 0.12);
  border-bottom: 1px solid rgba(196, 92, 38, 0.25);
  color: #8a3f16;
  font-size: 0.85rem;
  text-align: center;
  padding: 0.55rem 1rem;
}

.section {
  padding: 3.5rem 0;
}

.section--muted {
  background: rgba(255, 255, 255, 0.4);
  border-bottom: 1px solid rgba(26, 35, 50, 0.1);
}

.section h2 {
  margin: 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 1.85rem;
}

.section .sub {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  color: rgba(26, 35, 50, 0.55);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.section-head a {
  color: var(--accent);
  font-size: 0.9rem;
}

.section-head a:hover {
  text-decoration: underline;
}

.steps {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.steps .n {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.steps h3 {
  margin: 0.5rem 0 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 1.25rem;
}

.steps p {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: rgba(26, 35, 50, 0.65);
}

.chips {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chip {
  border: 1px solid rgba(26, 35, 50, 0.15);
  padding: 0.35rem 0.75rem;
  border-radius: 2px;
  font-size: 0.875rem;
  color: rgba(26, 35, 50, 0.7);
}

.chip:hover {
  border-color: rgba(26, 35, 50, 0.35);
}

.grid {
  margin-top: 2rem;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  overflow: hidden;
  border: 1px solid rgba(26, 35, 50, 0.1);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.7);
  transition: border-color 0.2s;
}

.card:hover {
  border-color: rgba(26, 35, 50, 0.25);
}

.card__img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
  transition: transform 0.5s;
}

.card:hover .card__img {
  transform: scale(1.02);
}

.card__body {
  padding: 1rem;
}

.card__meta {
  margin: 0;
  font-size: 0.75rem;
  color: rgba(26, 35, 50, 0.45);
}

.card__title {
  margin: 0.35rem 0 0;
  font-weight: 500;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__row {
  margin-top: 0.75rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.5rem;
}

.price {
  margin: 0;
  font-size: 1.1rem;
  color: var(--accent);
}

.hint {
  margin: 0.15rem 0 0;
  font-size: 0.75rem;
  color: rgba(26, 35, 50, 0.55);
}

.page {
  padding: 3rem 0 4rem;
}

.page h1 {
  margin: 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 2.25rem;
}

.page .intro {
  margin: 0.5rem 0 0;
  color: rgba(26, 35, 50, 0.6);
}

.detail {
  display: grid;
  gap: 2.5rem;
  padding: 3rem 0 4rem;
}

@media (min-width: 768px) {
  .detail {
    grid-template-columns: 1fr 1fr;
  }
}

.detail__img {
  aspect-ratio: 1;
  width: 100%;
  object-fit: cover;
  border-radius: 2px;
}

.detail h1 {
  margin: 0.35rem 0 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 2.25rem;
}

.form-box {
  max-width: 28rem;
  margin: 0 auto;
  padding: 4rem 1rem;
}

.form-box h1 {
  margin: 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 1.85rem;
}

.form-box .intro {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: rgba(26, 35, 50, 0.6);
}

.form-box .intro a {
  color: var(--accent);
}

.form {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.form label {
  display: block;
  font-size: 0.9rem;
}

.form input,
.form textarea,
.form select {
  margin-top: 0.35rem;
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(26, 35, 50, 0.2);
  border-radius: 2px;
  background: #fff;
  font: inherit;
}

.note {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(196, 92, 38, 0.1);
  border: 1px solid rgba(196, 92, 38, 0.25);
  border-radius: 2px;
  font-size: 0.85rem;
  color: #8a3f16;
}

.prose {
  max-width: 40rem;
  margin-top: 2rem;
  color: rgba(26, 35, 50, 0.8);
}

.prose p + p {
  margin-top: 1.25rem;
}

.prose a {
  color: var(--accent);
}

.prose a:hover {
  text-decoration: underline;
}

.stats {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  border: 1px solid rgba(26, 35, 50, 0.1);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
  padding: 1rem;
}

.stat .l {
  margin: 0;
  font-size: 0.75rem;
  color: rgba(26, 35, 50, 0.5);
}

.stat .v {
  margin: 0.5rem 0 0;
  font-size: 1.15rem;
  font-weight: 500;
  word-break: break-all;
}

.panel {
  margin-top: 2.5rem;
  border: 1px solid rgba(26, 35, 50, 0.1);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
  padding: 1.25rem;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid rgba(26, 35, 50, 0.1);
  background: var(--ink);
  color: var(--mist);
  font-size: 0.9rem;
}

.site-footer__inner {
  display: grid;
  gap: 1.5rem;
  padding: 2.5rem 0;
}

@media (min-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__links {
    text-align: right;
  }
}

.site-footer .brand {
  margin: 0;
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 1.15rem;
  color: #fff;
}

.site-footer .company {
  margin: 0.5rem 0 0;
  color: rgba(232, 238, 244, 0.75);
}

.site-footer .tag {
  margin: 0.25rem 0 0;
  color: rgba(232, 238, 244, 0.6);
}

.site-footer a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.site-footer__links p {
  margin: 0;
  color: rgba(232, 238, 244, 0.75);
}

.site-footer__links p + p {
  margin-top: 0.5rem;
}