:root {
  --background: #f8f9fa;
  --surface: #ffffff;
  --surface-low: #f3f4f5;
  --surface-mid: #edeeef;
  --surface-high: #e7e8e9;
  --ink: #191c1d;
  --muted: #414844;
  --soft: #717973;
  --outline: #c1c8c2;
  --primary: #012d1d;
  --primary-soft: #1b4332;
  --primary-fixed: #c1ecd4;
  --earth: #503715;
  --earth-soft: #ffddb6;
  --sky: #006399;
  --max: 1440px;
  --margin: 80px;
  --gutter: 24px;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 8px 30px rgba(27, 67, 50, 0.08);
  --shadow-hover: 0 16px 44px rgba(27, 67, 50, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--background);
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  transform: translateY(-150%);
  background: var(--primary);
  color: #fff;
  padding: 8px 12px;
  border-radius: 999px;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 180px 1fr;
  align-items: center;
  gap: 24px;
  min-height: 88px;
  padding: 0 max(20px, calc((100vw - var(--max)) / 2 + var(--margin)));
  background: rgba(248, 249, 250, 0.96);
  border-bottom: 1px solid rgba(193, 200, 194, 0.45);
  box-shadow: 0 4px 20px rgba(27, 67, 50, 0.08);
  backdrop-filter: blur(18px);
  transition: box-shadow .25s ease, background-color .25s ease, border-color .25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(27, 67, 50, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-logo,
.footer-logo img {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 12px;
}

.brand-mark,
.brand small {
  display: none;
}

.brand strong {
  display: block;
  white-space: nowrap;
  color: var(--primary);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 28px;
  font-weight: 800;
  line-height: 1.1;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 34px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
  transition: color .22s ease, background .22s ease, transform .22s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--primary);
  transition: transform .22s ease;
}

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

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.site-nav .book-link {
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
}

.site-nav .book-link::after {
  display: none;
}

.site-nav .book-link:hover {
  color: #fff;
  background: var(--primary-soft);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  justify-self: end;
  width: 44px;
  height: 44px;
  border: 1px solid var(--outline);
  border-radius: var(--radius);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--primary);
}

.page-shell {
  animation: pageIn .42s ease both;
}

body.is-leaving .page-shell {
  animation: pageOut .18s ease both;
}

@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pageOut {
  to { opacity: 0; transform: translateY(8px); }
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(40px, 5.2vw, 76px);
  font-weight: 800;
}

h2 {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 700;
}

h3 {
  font-size: clamp(21px, 2vw, 28px);
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero {
  position: relative;
  min-height: 620px;
  height: clamp(620px, calc(100vh - 200px), 760px);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero > img,
.detail-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(1, 45, 29, .08), rgba(1, 45, 29, .14) 34%, rgba(1, 45, 29, .18) 100%),
    rgba(0, 0, 0, .18);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(920px, calc(100% - 40px));
  margin-top: 64px;
  color: #fff;
  text-align: center;
}

.hero .eyebrow,
.detail-hero .eyebrow {
  color: rgba(255, 255, 255, .9);
}

.hero-content h1,
.detail-hero-content h1 {
  color: #fff;
  text-shadow: 0 4px 18px rgba(0, 0, 0, .28);
}

.hero-content p:not(.eyebrow) {
  max-width: 760px;
  margin: 22px auto 0;
  color: rgba(255, 255, 255, .92);
  font-size: clamp(17px, 1.6vw, 20px);
  text-shadow: 0 3px 12px rgba(0, 0, 0, .28);
}

.hero-title-image {
  display: block;
  width: min(760px, 92vw);
  max-height: 260px;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 22px rgba(0, 0, 0, .28));
}

.hero-actions,
.form-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1.2;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(1, 45, 29, .18);
}

.btn.secondary,
.btn.filter-reset {
  background: var(--surface-low);
  color: var(--primary);
  border-color: transparent;
}

.btn.ghost {
  color: #fff;
  border-color: rgba(255, 255, 255, .65);
  background: rgba(255, 255, 255, .12);
  backdrop-filter: blur(8px);
}

.btn.full {
  width: 100%;
}

.section {
  width: min(var(--max), calc(100% - (var(--margin) * 2)));
  margin: 0 auto;
  padding: 120px 0;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 0;
  margin-top: 80px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #003d26;
  box-shadow: var(--shadow);
}

.trust-strip div {
  min-height: 132px;
  padding: 34px;
  border-right: 1px solid rgba(255, 255, 255, .14);
}

.trust-strip div:last-child {
  border-right: 0;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  color: #fff;
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 22px;
}

.trust-strip span {
  margin-top: 10px;
  color: rgba(255, 255, 255, .76);
  font-size: 15px;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(280px, .82fr) minmax(360px, 1.18fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: start;
}

.about-story {
  grid-template-columns: minmax(360px, .95fr) minmax(420px, 1.05fr);
  align-items: center;
  padding-top: 112px;
}

.about-story-media {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
}

.about-story-media img {
  width: 100%;
  aspect-ratio: 1.16;
  object-fit: cover;
  display: block;
}

.rich-copy p {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 18px;
}

.rich-copy h2 {
  margin-bottom: 22px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
}

.section-head h2 {
  margin-bottom: 0;
}

.text-link {
  color: var(--primary);
  font-weight: 800;
  border-bottom: 2px solid currentColor;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gutter);
}

.home-bento {
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: 240px;
  align-items: stretch;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: box-shadow .28s ease, transform .28s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.home-bento .product-card {
  position: relative;
  min-height: 0;
}

.home-bento .product-card:first-child {
  grid-column: span 8;
  grid-row: span 2;
}

.home-bento .product-card:nth-child(n + 2) {
  grid-column: span 4;
}

.home-bento .product-card .card-image {
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
}

.home-bento .product-card .card-body {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding: 28px;
  color: #fff;
  background: linear-gradient(180deg, rgba(1, 45, 29, 0), rgba(1, 45, 29, .86));
}

.home-bento .product-card h3,
.home-bento .product-card h3 a,
.home-bento .product-card p,
.home-bento .product-card .card-foot strong,
.home-bento .product-card .card-foot a {
  color: #fff;
}

.home-bento .product-card p {
  color: rgba(255, 255, 255, .84);
}

.home-bento .product-card:nth-child(n + 2) .card-body p {
  display: none;
}

.home-bento .product-card .card-meta span {
  color: #fff;
  background: rgba(255, 255, 255, .18);
  border-color: rgba(255, 255, 255, .24);
  backdrop-filter: blur(8px);
}

.card-image {
  display: block;
  aspect-ratio: 1.52;
  overflow: hidden;
  background: var(--surface-mid);
}

.card-image img,
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s ease;
}

.product-card:hover .card-image img,
.article-row:hover .article-thumb img {
  transform: scale(1.05);
}

.card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 28px;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.card-meta span {
  padding: 6px 11px;
  border: 1px solid rgba(193, 200, 194, .65);
  border-radius: 999px;
  background: var(--surface-low);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.card-body h3 {
  margin-bottom: 12px;
}

.card-body h3 a:hover,
.article-row h3 a:hover {
  color: var(--primary);
}

.card-body p {
  margin: 0 0 24px;
  color: var(--soft);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--surface-high);
}

.card-foot strong {
  color: var(--ink);
  font-size: 20px;
}

.card-foot a {
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(193, 236, 212, .42);
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(0, 2.72fr) minmax(220px, .38fr);
  gap: clamp(18px, 2.5vw, 34px);
  align-items: center;
  width: 100%;
  max-width: none;
  padding-left: max(var(--margin), calc((100vw - var(--max)) / 2));
  padding-right: max(var(--margin), calc((100vw - var(--max)) / 2));
  background: var(--surface-low);
}

.feature-band img,
.feature-band .feature-video {
  width: 100%;
  height: clamp(320px, 22vw, 480px);
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.feature-band .feature-video {
  display: block;
  background: #0b1f18;
}

.feature-band p:not(.eyebrow) {
  max-width: 480px;
  color: var(--muted);
  font-size: 18px;
}

.article-list {
  display: grid;
  gap: var(--gutter);
}

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

.home-updates {
  padding-top: 96px;
}

.home-article-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.article-row {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform .26s ease, box-shadow .26s ease;
}

.article-row:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.article-thumb {
  display: block;
  aspect-ratio: 1.55;
  overflow: hidden;
  background: var(--surface-mid);
}

.article-row > div {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 28px;
}

.article-row .eyebrow {
  margin-bottom: 12px;
  color: var(--earth);
}

.article-row > div > p:last-of-type {
  margin: 14px 0 0;
  color: var(--soft);
}

.article-more {
  width: fit-content;
  margin-top: 18px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.article-more::after {
  content: " ->";
}

.home-article-grid .article-row {
  border-radius: var(--radius);
  box-shadow: 0 12px 36px rgba(27, 67, 50, .06);
}

.home-article-grid .article-thumb {
  aspect-ratio: 1.72;
}

.home-article-grid .article-row > div {
  padding: 20px 22px 22px;
}

.home-article-grid .article-row h3 {
  margin-bottom: 10px;
  font-size: clamp(20px, 1.7vw, 24px);
  line-height: 1.25;
}

.home-article-grid .article-row > div > p:last-of-type {
  margin-top: 0;
  font-size: 14px;
  line-height: 1.75;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.page-hero {
  position: relative;
  width: 100%;
  min-height: 560px;
  display: grid;
  place-items: center;
  padding: 120px max(20px, calc((100vw - var(--max)) / 2 + var(--margin))) 96px;
  overflow: hidden;
  text-align: center;
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .38), rgba(1, 45, 29, .18)),
    url("/uploads/2026/05/hero-products-hulunbuir-20260520.webp");
  background-size: cover;
  background-position: center;
}

.page-hero-products {
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .38), rgba(1, 45, 29, .18)),
    url("/uploads/2026/05/hero-products-hulunbuir-20260520.webp");
  background-position: center 56%;
}

.page-hero-guides {
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .4), rgba(1, 45, 29, .2)),
    url("/uploads/2026/05/hero-guides-hulunbuir-20260520.webp");
  background-position: center 50%;
}

.page-hero-news {
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .42), rgba(1, 45, 29, .24)),
    url("/uploads/2026/05/hero-news-hulunbuir-20260520.webp");
  background-position: center 54%;
}

.page-hero-contact {
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .42), rgba(1, 45, 29, .22)),
    url("/uploads/2026/05/hero-contact-hulunbuir-20260520.webp");
  background-position: center 56%;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, .08), rgba(248, 249, 250, .05));
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.page-hero h1,
.page-hero p,
.page-hero .eyebrow {
  color: #fff;
  text-shadow: 0 4px 16px rgba(0, 0, 0, .24);
}

.page-hero p:not(.eyebrow) {
  max-width: 760px;
  margin: 20px auto 0;
  font-size: 18px;
}

.about-hero {
  min-height: 620px;
  background-image:
    linear-gradient(180deg, rgba(1, 45, 29, .36), rgba(1, 45, 29, .18)),
    url("/uploads/2026/05/hero-about-hulunbuir-20260520.webp");
  background-position: center 54%;
}

.about-proof-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  width: min(var(--max), calc(100% - (var(--margin) * 2)));
  margin: -48px auto 0;
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 1px solid rgba(193, 200, 194, .62);
  border-radius: var(--radius-lg);
  background: rgba(248, 249, 250, .94);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.about-proof-band div {
  padding: 28px;
  border-right: 1px solid var(--surface-high);
}

.about-proof-band div:last-child {
  border-right: 0;
}

.about-proof-band strong,
.about-proof-band span {
  display: block;
}

.about-proof-band strong {
  color: var(--primary);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 24px;
}

.about-proof-band span {
  margin-top: 8px;
  color: var(--soft);
}

.route-browser {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

.product-browser {
  padding-top: 80px;
}

.product-season-tabs {
  margin-bottom: 44px;
}

.route-filter {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 28px;
  padding: 28px;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.route-filter h2 {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--surface-high);
  font-size: 25px;
}

.route-filter h3 {
  margin-bottom: 14px;
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 800;
}

.route-filter label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
  color: var(--muted);
}

.route-filter input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

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

.empty-state {
  padding: 36px;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.empty-state h2 {
  margin-bottom: 10px;
  font-size: 26px;
}

.empty-state p {
  color: var(--muted);
}

.guide-browser {
  padding-top: 80px;
}

.guide-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 34px;
  margin-bottom: 56px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--surface-high);
}

.guide-tabs a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  border-bottom: 2px solid transparent;
  padding-bottom: 8px;
}

.guide-tabs a.active,
.guide-tabs a:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.detail-hero {
  position: relative;
  min-height: 660px;
  display: grid;
  place-items: center;
  overflow: hidden;
  text-align: center;
}

.detail-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(1, 45, 29, .34), rgba(1, 45, 29, .1));
}

.detail-hero-content {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 40px));
  color: #fff;
}

.detail-hero-content h1 {
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
  word-break: keep-all;
}

.detail-hero-content p:not(.eyebrow) {
  margin: 20px auto 0;
  max-width: 760px;
  color: rgba(255, 255, 255, .9);
  font-size: 18px;
}

.detail-hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}

.detail-hero-meta span {
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 999px;
  background: rgba(255, 255, 255, .16);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  backdrop-filter: blur(10px);
}

.detail-summary-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(var(--max), calc(100% - (var(--margin) * 2)));
  margin: -54px auto 0;
  overflow: hidden;
  border: 1px solid rgba(193, 200, 194, .62);
  border-radius: var(--radius-lg);
  background: rgba(248, 249, 250, .96);
  box-shadow: var(--shadow-hover);
  backdrop-filter: blur(18px);
}

.detail-summary-strip div {
  min-height: 118px;
  padding: 26px 28px;
  border-right: 1px solid var(--surface-high);
}

.detail-summary-strip div:last-child {
  border-right: 0;
}

.detail-summary-strip span,
.detail-summary-strip strong {
  display: block;
}

.detail-summary-strip span {
  color: var(--soft);
  font-size: 13px;
  font-weight: 800;
}

.detail-summary-strip strong {
  margin-top: 10px;
  color: var(--primary);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 22px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: clamp(34px, 5vw, 76px);
  align-items: start;
  padding-top: 112px;
}

.detail-aside {
  position: sticky;
  top: 104px;
  order: 2;
  padding: 24px;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.detail-aside h2 {
  margin-bottom: 14px;
  font-size: 28px;
}

.detail-content {
  order: 1;
}

.aside-note {
  margin: 18px 0 0;
  color: var(--soft);
  font-size: 13px;
  line-height: 1.7;
}

.fact {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--surface-high);
}

.fact span {
  color: var(--soft);
}

.route-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0 56px;
  counter-reset: route;
}

.route-points span {
  position: relative;
  min-height: 96px;
  padding: 20px 20px 20px 62px;
  border: 1px solid rgba(193, 200, 194, .72);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 10px 26px rgba(27, 67, 50, .06);
}

.route-points span::before {
  counter-increment: route;
  content: counter(route, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 20px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-fixed);
  color: var(--primary);
  font-size: 12px;
  font-weight: 900;
}

.highlight-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 22px 0 58px;
}

.highlight-list p {
  margin: 0;
  min-height: 132px;
  padding: 24px;
  border: 1px solid var(--surface-high);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 4px 16px rgba(27, 67, 50, .05);
}

.detail-block {
  max-width: 720px;
}

.detail-block h2 {
  margin-bottom: 10px;
}

.detail-block p:not(.eyebrow) {
  color: var(--muted);
}

.itinerary-panel {
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.prose {
  color: var(--muted);
  font-size: 18px;
}

.prose h2,
.prose h3,
.prose h4 {
  margin: 36px 0 16px;
  color: var(--ink);
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose table {
  margin: 0 0 20px;
}

.prose img {
  margin: 28px 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.prose blockquote {
  padding: 20px 22px;
  border-left: 3px solid var(--earth);
  border-radius: var(--radius);
  background: var(--surface-low);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

.prose th,
.prose td {
  border: 1px solid var(--surface-high);
  padding: 11px 13px;
  text-align: left;
}

.prose ol li[data-list="bullet"] {
  list-style-type: disc;
}

.prose .ql-align-center {
  text-align: center;
}

.prose .ql-align-right {
  text-align: right;
}

.inquiry-section,
.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(34px, 6vw, 84px);
  align-items: start;
}

.inquiry-form,
.contact-panel {
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--surface-high);
  border-radius: var(--radius);
  padding: 13px 14px;
  color: var(--ink);
  background: var(--surface);
  font: inherit;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  outline: 2px solid rgba(0, 99, 153, .18);
  border-color: var(--sky);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.form-success {
  margin-bottom: 16px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--primary-fixed);
  color: var(--primary);
  font-weight: 800;
}

.contact-panel p {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-high);
}

.contact-panel span {
  color: var(--soft);
}

.trust-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gutter);
}

.trust-cards div {
  padding: 28px;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.trust-cards strong {
  color: var(--primary);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 21px;
}

.trust-cards p {
  margin-bottom: 0;
  color: var(--soft);
}

.about-process {
  padding-top: 90px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gutter);
  counter-reset: process;
}

.process-grid div {
  position: relative;
  min-height: 220px;
  padding: 28px;
  border: 1px solid rgba(193, 200, 194, .58);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.process-grid span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 32px;
  border-radius: 50%;
  background: var(--primary-fixed);
  color: var(--primary);
  font-weight: 900;
}

.process-grid strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 22px;
}

.process-grid p {
  margin: 0;
  color: var(--soft);
}

.about-contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: min(var(--max), calc(100% - (var(--margin) * 2)));
  margin: 24px auto 112px;
  padding: clamp(30px, 5vw, 54px);
  border-radius: var(--radius-lg);
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-hover);
}

.about-contact-band h2,
.about-contact-band p,
.about-contact-band .eyebrow {
  color: #fff;
}

.about-contact-band p:not(.eyebrow) {
  max-width: 620px;
  margin: 10px 0 0;
  color: rgba(255, 255, 255, .78);
}

.article-hero {
  width: min(980px, calc(100% - (var(--margin) * 2)));
  margin: 0 auto;
  padding: 112px 0 0;
  text-align: center;
}

.article-hero p:not(.eyebrow) {
  max-width: 740px;
  margin: 18px auto 30px;
  color: var(--soft);
}

.article-hero img {
  width: 100%;
  aspect-ratio: 1.72;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.article-body {
  width: min(860px, calc(100% - (var(--margin) * 2)));
  padding-top: 72px;
}

.site-footer {
  margin-top: 40px;
  padding: 90px max(20px, calc((100vw - var(--max)) / 2 + var(--margin))) 36px;
  background: var(--surface-mid);
  color: var(--ink);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(280px, .76fr) minmax(680px, 1.24fr);
  gap: clamp(44px, 6vw, 92px);
  align-items: start;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-logo strong,
.site-footer strong {
  color: var(--primary);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 24px;
}

.footer-logo img {
  width: 42px;
  height: 42px;
}

.site-footer p {
  max-width: 460px;
  margin: 18px 0 0;
  color: var(--muted);
}

.footer-contact {
  display: grid;
  gap: 10px;
  margin-top: 28px;
  color: var(--soft);
  font-size: 14px;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(250px, 1.35fr);
  gap: 28px;
}

.footer-columns h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
  font-size: 18px;
}

.footer-columns a {
  display: block;
  margin: 0 0 12px;
  color: var(--muted);
}

.footer-columns a:hover {
  color: var(--primary);
}

.footer-qr-list {
  display: grid;
  grid-template-columns: repeat(2, 112px);
  gap: 16px;
  align-items: flex-start;
}

.footer-wechat {
  min-width: 240px;
}

.footer-qr-item {
  width: 112px;
}

.footer-qr-title {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

.wechat-card {
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border: 1px solid rgba(193, 200, 194, .72);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 26px rgba(27, 67, 50, .06);
  text-align: center;
}

.wechat-card span {
  max-width: 88px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
}

.wechat-card img {
  max-width: 86px;
  max-height: 86px;
  object-fit: contain;
}

.wechat-card .wechat-qr {
  width: 92px;
  height: 92px;
}

.footer-qr-item p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid rgba(193, 200, 194, .66);
  color: var(--soft);
  font-size: 13px;
}

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

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

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .72s ease, transform .72s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  :root {
    --margin: 40px;
  }

  .site-header {
    grid-template-columns: 160px 1fr;
  }

  .site-nav {
    gap: 22px;
  }

  .home-bento .product-card:first-child,
  .home-bento .product-card:nth-child(n + 2) {
    grid-column: span 12;
  }

  .home-bento {
    grid-auto-rows: auto;
  }

  .home-bento .product-card:first-child {
    grid-row: auto;
    min-height: 440px;
  }

  .home-bento .product-card:nth-child(n + 2) {
    min-height: 350px;
  }
}

@media (max-width: 980px) {
  :root {
    --margin: 28px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 72px;
  }

  .brand strong {
    font-size: 23px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 72px;
    left: 16px;
    right: 16px;
    display: grid;
    gap: 0;
    justify-content: stretch;
    padding: 12px;
    border: 1px solid var(--surface-high);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-hover);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease, transform .22s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .site-nav .book-link {
    margin-top: 8px;
    text-align: center;
  }

  .section {
    padding: 82px 0;
  }

  .trust-strip,
  .about-proof-band,
  .detail-summary-strip,
  .card-grid,
  .article-card-grid,
  .home-article-grid,
  .highlight-list,
  .trust-cards,
  .process-grid,
  .route-points,
  .footer-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-section,
  .feature-band,
  .detail-grid,
  .inquiry-section,
  .contact-grid,
  .route-browser,
  .footer-main {
    grid-template-columns: 1fr;
  }

  .route-filter,
  .detail-aside {
    position: static;
  }

  .detail-aside,
  .detail-content {
    order: initial;
  }

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

@media (max-width: 680px) {
  :root {
    --margin: 20px;
    --gutter: 18px;
  }

  body {
    font-size: 15px;
  }

  .site-header {
    padding: 0 var(--margin);
  }

  .hero {
    min-height: 560px;
    height: clamp(560px, calc(100vh - 144px), 620px);
  }

  .hero-content {
    margin-top: 34px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: min(320px, 100%);
    margin-left: auto;
    margin-right: auto;
  }

  .trust-strip,
  .about-proof-band,
  .detail-summary-strip,
  .card-grid,
  .article-card-grid,
  .home-article-grid,
  .highlight-list,
  .trust-cards,
  .process-grid,
  .route-points,
  .footer-columns,
  .form-row {
    grid-template-columns: 1fr;
  }

  .trust-strip div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
  }

  .trust-strip div:last-child {
    border-bottom: 0;
  }

  .about-proof-band,
  .detail-summary-strip {
    margin-top: -28px;
  }

  .about-proof-band div,
  .detail-summary-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--surface-high);
  }

  .about-proof-band div:last-child,
  .detail-summary-strip div:last-child {
    border-bottom: 0;
  }

  .home-bento .product-card,
  .home-bento .product-card:first-child,
  .home-bento .product-card:nth-child(n + 2) {
    min-height: 380px;
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  .page-hero {
    min-height: 450px;
  }

  .guide-tabs {
    gap: 18px;
  }

  .site-footer {
    padding-top: 72px;
  }

  .about-contact-band,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 36px;
  }

  .card-body,
  .article-row > div,
  .route-filter,
  .inquiry-form,
  .contact-panel,
  .itinerary-panel {
    padding: 22px;
  }

  .brand-logo {
    width: 34px;
    height: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}