:root {
  --bg: #120d0b;
  --bg-2: #1d1210;
  --panel: rgba(42, 29, 24, 0.86);
  --panel-strong: #2f201a;
  --paper: #f3dec2;
  --paper-2: #e7c891;
  --ink: #f8ead3;
  --muted: #cdb69a;
  --soft: #9c8063;
  --line: rgba(231, 200, 145, 0.24);
  --red: #c8423a;
  --red-dark: #7f211f;
  --gold: #dca95a;
  --blue: #5db8c9;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
  --shadow-hover: 0 28px 80px rgba(0, 0, 0, 0.52);
  --glow-red: 0 0 34px rgba(200, 66, 58, 0.24);
  --glow-gold: 0 0 34px rgba(220, 169, 90, 0.24);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --font-display: "FZYaoti", "YouYuan", "KaiTi", "STKaiti", serif;
  --font-body: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 5%, rgba(200, 66, 58, 0.22), transparent 28rem),
    radial-gradient(circle at 85% 15%, rgba(93, 184, 201, 0.16), transparent 24rem),
    linear-gradient(135deg, #120d0b 0%, #1d1210 48%, #0c0908 100%);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(243, 222, 194, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 222, 194, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 82%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(255,255,255,0.02), transparent 35%, rgba(255,255,255,0.015)),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 4px);
  mix-blend-mode: screen;
  opacity: 0.42;
}

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

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

button {
  font: inherit;
}

::selection {
  color: #160d0b;
  background: var(--gold);
}

.text-key {
  color: var(--paper-2);
  font-weight: 900;
  text-shadow: 0 0 18px rgba(220, 169, 90, 0.18);
}

.hero-lead .text-key {
  color: #f3dec2;
  text-shadow: 0 0 22px rgba(220, 169, 90, 0.24);
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: #160d0b;
  background: var(--paper);
  border-radius: 999px;
  transform: translateY(-140%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(243, 222, 194, 0.12);
  background: rgba(18, 13, 11, 0.74);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  transition: transform 0.24s ease, filter 0.24s ease;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border: 1px solid rgba(231, 200, 145, 0.45);
  border-radius: 14px;
  box-shadow: 0 0 0 4px rgba(200, 66, 58, 0.12);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.brand:hover,
.brand:focus-visible {
  transform: translateY(-1px);
  filter: brightness(1.06);
  outline: none;
}

.brand:hover img,
.brand:focus-visible img {
  transform: rotate(-2deg) scale(1.04);
  box-shadow: 0 0 0 4px rgba(220, 169, 90, 0.18), var(--glow-gold);
}

.brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.brand small {
  display: block;
  margin-top: -2px;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.site-nav a {
  position: relative;
  padding: 8px 11px;
  color: var(--muted);
  border-radius: 999px;
  font-size: 0.88rem;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.site-nav a:not(.nav-cta)::after,
.quick-nav a::after,
.guide-index a::after {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transform: scaleX(0.3);
  transition: opacity 0.24s ease, transform 0.24s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  color: var(--ink);
  background: rgba(243, 222, 194, 0.1);
  transform: translateY(-1px);
  outline: none;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.is-active::after,
.quick-nav a:hover::after,
.quick-nav a:focus-visible::after,
.guide-index a:hover::after,
.guide-index a:focus-visible::after,
.guide-index a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav .nav-cta {
  margin-left: 6px;
  color: #1d1210;
  background: linear-gradient(135deg, var(--gold), var(--paper-2));
  box-shadow: 0 10px 24px rgba(220, 169, 90, 0.22);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  color: #1d1210;
  background: linear-gradient(135deg, #f0c578, var(--paper));
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  color: var(--ink);
  background: rgba(243, 222, 194, 0.08);
  border: 1px solid rgba(243, 222, 194, 0.18);
  border-radius: 14px;
  transition: border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible,
.nav-toggle.is-open {
  background: rgba(220, 169, 90, 0.14);
  border-color: rgba(220, 169, 90, 0.45);
  box-shadow: var(--glow-gold);
  outline: none;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  border-radius: 999px;
  transition: transform 0.22s ease, opacity 0.22s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.section-pad {
  padding: 72px 0;
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  position: absolute;
  right: -10vw;
  top: 12vh;
  width: 52vw;
  height: 52vw;
  min-width: 520px;
  min-height: 520px;
  content: "";
  background:
    radial-gradient(circle, rgba(200, 66, 58, 0.18), transparent 62%),
    conic-gradient(from 30deg, rgba(220, 169, 90, 0.12), transparent, rgba(93, 184, 201, 0.11), transparent);
  border-radius: 50%;
  filter: blur(3px);
}

.hero-bg::after {
  position: absolute;
  left: 5vw;
  bottom: 0;
  width: 240px;
  height: 420px;
  content: "";
  background:
    linear-gradient(90deg, rgba(200,66,58,0.18), transparent 35%),
    repeating-linear-gradient(90deg, rgba(243,222,194,0.13) 0 5px, transparent 5px 16px);
  opacity: 0.55;
  transform: skewX(-8deg);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.9fr);
  align-items: center;
  gap: 54px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.18;
  letter-spacing: 0.04em;
}

h1 {
  max-width: 820px;
  color: var(--paper-2);
  font-size: clamp(2.05rem, 4.6vw, 4.4rem);
  text-wrap: balance;
  text-shadow: 0 10px 36px rgba(0, 0, 0, 0.46);
}

h2 {
  color: var(--paper-2);
  font-size: clamp(1.55rem, 3vw, 2.55rem);
  text-align: center;
}

h3 {
  font-size: clamp(1.08rem, 1.6vw, 1.35rem);
}

h4 {
  font-size: 1rem;
}

.hero-lead {
  max-width: 730px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.btn {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 17px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.05em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.38) 45%, transparent 70%);
  opacity: 0;
  transform: translateX(-120%);
  transition: opacity 0.24s ease, transform 0.5s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  outline: none;
}

.btn:hover::before,
.btn:focus-visible::before {
  opacity: 1;
  transform: translateX(120%);
}

.btn-primary {
  color: #170d0a;
  background: linear-gradient(135deg, #e7b85f 0%, #f3dec2 100%);
  box-shadow: 0 16px 34px rgba(220, 169, 90, 0.24);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  box-shadow: 0 20px 44px rgba(220, 169, 90, 0.36), var(--glow-gold);
}

.btn-ghost {
  color: var(--ink);
  background: rgba(243, 222, 194, 0.06);
  border-color: rgba(243, 222, 194, 0.22);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(243, 222, 194, 0.12);
  border-color: rgba(220, 169, 90, 0.42);
}

.btn.full {
  width: 100%;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
}

.hero-facts div,
.info-panel,
.feature-card,
.guide-block,
.download-panel,
.faq-item,
.gallery-item,
.media-frame {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 48%),
    var(--panel);
  box-shadow: var(--shadow);
  transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease, background 0.26s ease;
}

.hero-facts div {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.hero-facts div:hover,
.info-panel:hover,
.feature-card:hover,
.guide-block:hover,
.download-panel:hover,
.faq-item:hover,
.gallery-item:hover,
.media-frame:hover {
  transform: translateY(-5px);
  border-color: rgba(220, 169, 90, 0.46);
  box-shadow: var(--shadow-hover), var(--glow-red);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 48%),
    rgba(48, 32, 26, 0.92);
}

.hero-facts dt {
  color: var(--soft);
  font-size: 0.78rem;
}

.hero-facts dd {
  margin: 4px 0 0;
  color: var(--ink);
  font-weight: 700;
}

.hero-card {
  position: relative;
  margin: 0;
  padding: 12px;
  border-radius: var(--radius-lg);
  background: rgba(243, 222, 194, 0.08);
  border: 1px solid rgba(243, 222, 194, 0.2);
  box-shadow: var(--shadow);
  transition: transform 0.32s ease, box-shadow 0.32s ease, border-color 0.32s ease;
}

.hero-card::before {
  position: absolute;
  inset: -10px;
  z-index: -1;
  content: "";
  background: linear-gradient(135deg, rgba(200, 66, 58, 0.42), rgba(220, 169, 90, 0.18), rgba(93, 184, 201, 0.2));
  border-radius: calc(var(--radius-lg) + 10px);
  filter: blur(18px);
  opacity: 0.62;
}

.hero-card img {
  width: 100%;
  border-radius: 20px;
  object-fit: cover;
  transition: transform 0.42s ease, filter 0.42s ease;
}

.hero-card:hover {
  transform: translateY(-7px) rotate(0.5deg);
  border-color: rgba(220, 169, 90, 0.55);
  box-shadow: var(--shadow-hover), var(--glow-gold);
}

.hero-card:hover img {
  transform: scale(1.025);
  filter: saturate(1.12) contrast(1.04);
}

.quick-nav {
  position: sticky;
  top: 68px;
  z-index: 80;
  padding: 10px 0;
  border-top: 1px solid rgba(243, 222, 194, 0.1);
  border-bottom: 1px solid rgba(243, 222, 194, 0.1);
  background: rgba(29, 18, 16, 0.76);
  backdrop-filter: blur(14px);
}

.quick-nav-inner {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.quick-nav-inner::-webkit-scrollbar {
  display: none;
}

.quick-nav a {
  position: relative;
  flex: 0 0 auto;
  padding: 7px 12px;
  color: var(--muted);
  background: rgba(243, 222, 194, 0.06);
  border: 1px solid rgba(243, 222, 194, 0.11);
  border-radius: 999px;
  font-size: 0.84rem;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.quick-nav a:hover,
.quick-nav a:focus-visible {
  color: var(--ink);
  background: rgba(200, 66, 58, 0.14);
  border-color: rgba(220, 169, 90, 0.42);
  transform: translateY(-1px);
  outline: none;
}

.split-grid,
.media-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 410px;
  gap: 34px;
  align-items: start;
}

.split-grid.reverse {
  grid-template-columns: minmax(0, 1fr) 360px;
}

.section-copy p,
.section-head p,
.guide-block p,
.download-panel p,
.site-footer p {
  color: var(--muted);
}

.section-copy > p:not(.section-kicker),
.section-head p {
  margin: 14px 0 0;
}

.section-head {
  max-width: 820px;
  margin: 0 auto 28px;
  text-align: center;
}

.term-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.term-cloud span,
.collect-grid span {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  color: var(--paper);
  background: rgba(200, 66, 58, 0.16);
  border: 1px solid rgba(200, 66, 58, 0.34);
  border-radius: 999px;
  font-size: 0.92rem;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.term-cloud span:hover,
.collect-grid span:hover {
  transform: translateY(-2px);
  background: rgba(220, 169, 90, 0.16);
  border-color: rgba(220, 169, 90, 0.46);
  box-shadow: var(--glow-gold);
}

.info-panel,
.download-panel {
  padding: 22px;
  border-radius: var(--radius-lg);
}

.info-panel h3,
.download-panel h3 {
  margin-bottom: 18px;
}

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

.data-list div {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(243, 222, 194, 0.12);
}

.data-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.data-list dt {
  color: var(--soft);
  font-size: 0.83rem;
}

.data-list dd {
  margin: 3px 0 0;
  color: var(--ink);
  font-weight: 700;
}

.feature-section,
.gallery-section,
.faq-section {
  background: linear-gradient(180deg, rgba(243, 222, 194, 0.035), transparent);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  position: relative;
  min-height: 205px;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.feature-card h3,
.guide-block h3,
.update-list h3,
.download-panel h3 {
  transition: color 0.22s ease, text-shadow 0.22s ease;
}

.feature-card:hover h3,
.guide-block:hover h3,
.update-list article:hover h3,
.download-panel:hover h3 {
  color: var(--paper-2);
  text-shadow: var(--glow-gold);
}

.feature-card::after {
  position: absolute;
  right: -28px;
  top: -28px;
  width: 90px;
  height: 90px;
  content: "";
  background: radial-gradient(circle, rgba(220, 169, 90, 0.26), transparent 70%);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  color: #170d0a;
  background: var(--gold);
  border-radius: 12px;
  font-weight: 900;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.feature-card:hover .card-icon {
  transform: translateY(-2px) rotate(-4deg) scale(1.06);
  box-shadow: var(--glow-gold);
}

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

.media-grid {
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.72fr);
  align-items: center;
}

.media-frame {
  margin: 0;
  padding: 10px;
  border-radius: var(--radius-lg);
}

.media-frame img {
  border-radius: 18px;
  transition: transform 0.36s ease, filter 0.36s ease;
}

.media-frame {
  overflow: hidden;
}

.media-frame:hover img {
  transform: scale(1.022);
  filter: saturate(1.1) contrast(1.04);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 12px;
  height: 12px;
  content: "";
  background: linear-gradient(135deg, var(--gold), var(--red));
  border-radius: 3px;
  box-shadow: 0 0 0 4px rgba(220, 169, 90, 0.12);
}

.check-list.compact {
  gap: 8px;
  margin-top: 14px;
}

.guide-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.guide-index {
  position: sticky;
  top: 132px;
  display: grid;
  gap: 8px;
  padding: 16px;
  background: rgba(243, 222, 194, 0.06);
  border: 1px solid rgba(243, 222, 194, 0.12);
  border-radius: var(--radius-md);
}

.guide-index a {
  position: relative;
  padding: 9px 10px;
  color: var(--muted);
  border-radius: 12px;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.guide-index a:hover,
.guide-index a:focus-visible,
.guide-index a.is-active {
  color: var(--ink);
  background: rgba(200, 66, 58, 0.18);
  transform: translateX(3px);
  outline: none;
}

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

.guide-block {
  scroll-margin-top: 138px;
  padding: 22px;
  border-radius: var(--radius-lg);
}

.guide-block h3 {
  color: var(--paper);
}

.guide-block p {
  margin: 10px 0 0;
}

.step-list {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding-left: 22px;
}

.step-list li {
  color: var(--muted);
}

.step-list strong {
  color: var(--ink);
}

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.strategy-grid div {
  padding: 16px;
  background: rgba(18, 13, 11, 0.45);
  border: 1px solid rgba(243, 222, 194, 0.1);
  border-radius: var(--radius-sm);
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.strategy-grid div:hover,
.route-timeline div:hover {
  transform: translateY(-3px);
  border-color: rgba(220, 169, 90, 0.38);
  background: rgba(29, 18, 16, 0.66);
}

.strategy-grid p {
  margin-top: 8px;
}

.route-timeline {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.route-timeline div {
  position: relative;
  padding: 18px 18px 18px 78px;
  background: rgba(18, 13, 11, 0.45);
  border: 1px solid rgba(243, 222, 194, 0.1);
  border-radius: var(--radius-sm);
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.route-timeline span {
  position: absolute;
  left: 16px;
  top: 18px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 900;
}

.route-timeline strong {
  display: block;
  color: var(--ink);
}

.route-timeline p {
  margin-top: 4px;
}

.collect-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.gallery-item {
  margin: 0;
  padding: 8px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.gallery-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.2);
  transition: transform 0.42s ease, filter 0.42s ease;
}

.gallery-item:hover img {
  transform: scale(1.045);
  filter: saturate(1.12) contrast(1.05);
}

.gallery-item:nth-child(5) img {
  aspect-ratio: 1 / 1;
}

.update-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.update-list article {
  position: relative;
  padding: 15px 16px 15px 22px;
  background: rgba(243, 222, 194, 0.055);
  border: 1px solid rgba(243, 222, 194, 0.12);
  border-radius: var(--radius-md);
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

.update-list article::before {
  position: absolute;
  left: -1px;
  top: 18px;
  bottom: 18px;
  width: 4px;
  content: "";
  background: linear-gradient(var(--gold), var(--red));
  border-radius: 999px;
  transition: box-shadow 0.22s ease, width 0.22s ease;
}

.update-list article:hover {
  transform: translateX(4px);
  border-color: rgba(220, 169, 90, 0.38);
  background: rgba(243, 222, 194, 0.075);
  box-shadow: var(--glow-red);
}

.update-list article:hover::before {
  width: 6px;
  box-shadow: var(--glow-gold);
}

.update-list time {
  color: var(--gold);
  font-size: 0.86rem;
  font-weight: 800;
}

.update-list h3 {
  margin-top: 6px;
  font-size: 1.18rem;
}

.update-list p {
  margin: 8px 0 0;
}

.download-panel {
  position: sticky;
  top: 132px;
}

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

.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  position: relative;
  padding: 15px 48px 15px 18px;
  cursor: pointer;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1rem;
  list-style: none;
  transition: color 0.22s ease, background 0.22s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  right: 20px;
  top: 50%;
  width: 22px;
  height: 22px;
  content: "+";
  display: grid;
  place-items: center;
  color: #170d0a;
  background: var(--gold);
  border-radius: 50%;
  transform: translateY(-50%);
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item:hover summary,
.faq-item summary:focus-visible {
  color: var(--paper-2);
  background: rgba(220, 169, 90, 0.07);
  outline: none;
}

.faq-item:hover summary::after,
.faq-item summary:focus-visible::after {
  transform: translateY(-50%) rotate(90deg);
  box-shadow: var(--glow-gold);
}

.faq-item p {
  margin: 0;
  padding: 0 18px 16px;
  color: var(--muted);
}

.site-footer {
  padding: 42px 0 24px;
  border-top: 1px solid rgba(243, 222, 194, 0.12);
  background: rgba(12, 9, 8, 0.82);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 30px;
  align-items: start;
}

.footer-brand {
  margin-bottom: 16px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--paper);
  outline: none;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid rgba(243, 222, 194, 0.1);
}

.footer-bottom p {
  margin: 0;
  font-size: 0.9rem;
}

.back-top {
  color: var(--ink);
  background: rgba(243, 222, 194, 0.06);
  border: 1px solid rgba(243, 222, 194, 0.18);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}

.back-top:hover,
.back-top:focus-visible {
  color: var(--paper);
  border-color: rgba(220, 169, 90, 0.5);
  outline: none;
}

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

.js-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 1024px) {
  .hero-grid,
  .split-grid,
  .split-grid.reverse,
  .media-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 80px;
  }

  .hero-card {
    max-width: 720px;
  }

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

  .guide-layout {
    grid-template-columns: 1fr;
  }

  .guide-index,
  .download-panel {
    position: static;
  }

  .guide-index {
    display: flex;
    overflow-x: auto;
  }

  .guide-index a {
    flex: 0 0 auto;
  }

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

@media (max-width: 820px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    min-height: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    background: rgba(18, 13, 11, 0.96);
    border: 1px solid rgba(243, 222, 194, 0.15);
    border-radius: 18px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    border-radius: 12px;
  }

  .site-nav .nav-cta {
    margin-left: 0;
    text-align: center;
  }

  .quick-nav {
    top: 64px;
  }

  .section-pad {
    padding: 52px 0;
  }

  .hero {
    padding-top: 64px;
  }

  .hero-grid {
    gap: 34px;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

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

  .footer-grid,
  .footer-bottom {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 14px;
  }

  .brand img {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .brand strong {
    font-size: 0.98rem;
  }

  .brand small {
    font-size: 0.68rem;
  }

  .hero-actions,
  .btn {
    width: 100%;
  }

  .feature-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item.large {
    grid-column: span 1;
    grid-row: span 1;
  }

  .feature-card,
  .guide-block,
  .info-panel,
  .download-panel {
    padding: 22px;
  }

  .route-timeline div {
    padding-left: 18px;
  }

  .route-timeline span {
    position: static;
    display: block;
    margin-bottom: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js-ready .reveal {
    opacity: 1;
    transform: none;
  }
}