/* roulang page: index */
/* ===== 1. Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #FAF6F0;
  color: #2B231E;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}
:focus-visible {
  outline: 2px solid #6B4F3A;
  outline-offset: 2px;
}

/* ===== 2. Design Variables ===== */
:root {
  --primary: #6B4F3A;
  --gold: #C6A15B;
  --green: #3E5F4E;
  --bg-warm: #FAF6F0;
  --dark: #1F1915;
  --text: #2B231E;
  --text-sec: #7A6A5D;
  --border: #E8DED2;
  --radius-card: 14px;
  --radius-btn: 40px;
  --radius-badge: 4px;
  --radius-img: 10px;
  --shadow-card: 0 1px 2px rgba(31,25,21,0.04), 0 8px 24px rgba(31,25,21,0.06);
  --shadow-hover: 0 12px 32px rgba(31,25,21,0.10);
  --container-max: 1200px;
  --transition: 0.3s ease;
}

/* ===== 3. Container ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 4. Header & Navigation ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(250,246,240,0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--border);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text);
  line-height: 1;
}
.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.logo:hover .logo-dot {
  transform: rotate(45deg);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.site-nav a {
  position: relative;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--text);
  padding: 6px 0;
  line-height: 1.2;
}
.site-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(31,25,21,0.12);
  background: rgba(250,246,240,0.8);
}
.nav-toggle svg {
  width: 20px;
  height: 20px;
  stroke: var(--text);
  stroke-width: 1.5;
}

/* ===== 5. Hero ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background-image: linear-gradient(105deg, rgba(31,25,21,0.88) 0%, rgba(31,25,21,0.55) 55%, rgba(31,25,21,0.25) 100%), url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  color: #FAF6F0;
  overflow: hidden;
}
.hero-content {
  padding: 140px 0 110px;
  max-width: 680px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  background: var(--green);
  color: #F5EFE6;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-badge);
  line-height: 1.5;
}
.hero-title {
  font-family: "Noto Serif SC", "PingFang SC", serif;
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 26px;
  color: #FFFDF8;
}
.hero-title .char {
  display: inline-block;
  opacity: 0;
  animation: heroCharFadeUp 0.5s ease forwards;
}
.hero-title .char:nth-child(1) { animation-delay: 0.00s; }
.hero-title .char:nth-child(2) { animation-delay: 0.03s; }
.hero-title .char:nth-child(3) { animation-delay: 0.06s; }
.hero-title .char:nth-child(4) { animation-delay: 0.09s; }
.hero-title .char:nth-child(5) { animation-delay: 0.12s; }
.hero-title .char:nth-child(6) { animation-delay: 0.15s; }
.hero-title .char:nth-child(7) { animation-delay: 0.18s; }
.hero-title .char:nth-child(8) { animation-delay: 0.21s; }
.hero-title .char:nth-child(9) { animation-delay: 0.24s; }
.hero-title .char:nth-child(10) { animation-delay: 0.27s; }
.hero-title .char:nth-child(11) { animation-delay: 0.30s; }
.hero-title .char:nth-child(12) { animation-delay: 0.33s; }
@keyframes heroCharFadeUp {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero-title .char {
    opacity: 1;
    animation: none;
  }
}
.hero-desc {
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(250,246,240,0.88);
  margin-bottom: 38px;
  max-width: 520px;
  letter-spacing: 0.015em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  line-height: 1.4;
  transition: all 0.3s ease;
  position: relative;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--dark);
  color: #FAF6F0;
  border-color: var(--dark);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary);
  border-color: var(--primary);
}
.btn-primary::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.btn-primary:hover::before,
.btn-primary:focus-visible::before {
  opacity: 1;
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--primary);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  background: rgba(107,79,58,0.08);
}
.btn-white-outline {
  background: transparent;
  color: #FAF6F0;
  border-color: rgba(250,246,240,0.7);
}
.btn-white-outline:hover,
.btn-white-outline:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--dark);
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(250,246,240,0.6);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}
.hero-scroll svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 1.5;
  animation: floatArrow 2s ease-in-out infinite;
}
@keyframes floatArrow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===== 6. Stats Section ===== */
.stats-section {
  background: var(--bg-warm);
  padding: clamp(3rem, 7vw, 5rem) 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.stat-item {
  text-align: center;
  padding: 0 2rem;
  position: relative;
}
.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: var(--border);
}
.stat-number {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 600;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
}
.stat-number span {
  font-size: 0.6em;
  vertical-align: super;
  color: var(--gold);
  font-weight: 500;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-sec);
  letter-spacing: 0.05em;
}

/* ===== 7. Topics Section ===== */
.section {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 44px;
}
.section-head h2 {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--text);
}
.section-head p {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--text-sec);
  max-width: 420px;
  line-height: 1.7;
}
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--text);
  letter-spacing: 0.04em;
  white-space: nowrap;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.link-more .arrow {
  transition: transform 0.25s ease;
}
.link-more:hover .arrow,
.link-more:focus-visible .arrow {
  transform: translateX(4px);
}
.link-more:hover,
.link-more:focus-visible {
  color: var(--primary);
  border-bottom-color: var(--gold);
}
.topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.topic-card {
  display: flex;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.topic-card:hover,
.topic-card:focus-within {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--primary);
}
.topic-cover {
  flex: 0 0 40%;
  position: relative;
  overflow: hidden;
  background: var(--bg-warm);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Cpath d='M14 26h36v10a8 8 0 0 1-8 8H22a8 8 0 0 1-8-8z' fill='none' stroke='%236B4F3A' stroke-width='2'/%3E%3Cpath d='M24 20h16' stroke='%23C6A15B' stroke-width='2'/%3E%3C/svg%3E") center/44px no-repeat;
}
.topic-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(31,25,21,0.06);
  transition: background 0.4s ease;
}
.topic-card:hover .topic-cover::after {
  background: rgba(31,25,21,0);
}
.topic-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.topic-card:hover .topic-cover img {
  transform: scale(1.03);
}
.topic-body {
  flex: 1;
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.topic-tag {
  display: inline-block;
  width: fit-content;
  padding: 3px 10px;
  background: rgba(62,95,78,0.08);
  color: var(--green);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius-badge);
  margin-bottom: 10px;
  line-height: 1.5;
}
.topic-body h3 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
  font-family: "Noto Serif SC", serif;
}
.topic-body p {
  font-size: 0.9rem;
  color: var(--text-sec);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.topic-link {
  font-size: 0.85rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.topic-link:hover,
.topic-link:focus-visible {
  border-bottom-color: var(--gold);
}
.topic-date {
  font-size: 0.78rem;
  color: var(--text-sec);
  letter-spacing: 0.03em;
}

/* ===== 8. Scenes Section (Dark) ===== */
.scenes-section {
  background: var(--dark);
  color: rgba(250,246,240,0.85);
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
.scenes-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 60px;
}
.scenes-intro h2 {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  font-weight: 600;
  line-height: 1.35;
  color: #FFFDF8;
  margin-bottom: 16px;
}
.scenes-intro p {
  color: rgba(250,246,240,0.6);
  font-size: 0.95rem;
  line-height: 1.8;
}
.scenes-list {
  display: flex;
  flex-direction: column;
}
.scene-item {
  display: flex;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(250,246,240,0.1);
  transition: padding-left 0.3s ease;
}
.scene-item:first-child {
  padding-top: 0;
}
.scene-item:last-child {
  border-bottom: none;
}
.scene-item:hover {
  padding-left: 4px;
}
.scene-marker {
  flex-shrink: 0;
  width: 3px;
  align-self: stretch;
  background: var(--gold);
  border-radius: 3px;
}
.scene-item:hover .scene-marker {
  background: #C6A15B;
}
.scene-name {
  font-size: 1.05rem;
  font-weight: 500;
  color: #FFFDF8;
  margin-bottom: 4px;
  font-family: "Noto Serif SC", serif;
}
.scene-desc {
  font-size: 0.88rem;
  color: rgba(250,246,240,0.55);
  line-height: 1.7;
}

/* ===== 9. Stories / Testimonials ===== */
.stories-section {
  background: var(--bg-warm);
}
.stories-list {
  max-width: 860px;
  margin: 0 auto;
}
.story-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.story-item:first-child {
  padding-top: 0;
}
.story-item:last-child {
  border-bottom: none;
}
.story-dot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--bg-warm);
  margin-top: 8px;
  position: relative;
}
.story-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 28px;
  bottom: -24px;
  width: 2px;
  background: rgba(198,161,91,0.25);
}
.story-item:last-child::before {
  display: none;
}
.story-content {
  flex: 1;
}
.story-quote {
  font-family: "Noto Serif SC", serif;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
  padding-left: 16px;
  border-left: 3px solid var(--border);
  margin-bottom: 10px;
}
.story-item:hover .story-quote {
  border-left-color: var(--primary);
}
.story-meta-line {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-sec);
  letter-spacing: 0.03em;
}
.stories-footer {
  text-align: center;
  margin-top: 44px;
}

/* ===== 10. Pricing Section ===== */
.pricing-section {
  background: var(--bg-warm);
  padding-top: 0;
}
.pricing-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.price-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px 36px;
  transition: box-shadow var(--transition), transform var(--transition);
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 30px;
  align-items: center;
}
.price-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.price-card.featured {
  border-top: 2px solid var(--gold);
  background: linear-gradient(180deg, #FFFBFF 0%, #FFFFFF 60%);
}
.price-badge {
  position: absolute;
  top: 16px;
  right: 20px;
  background: var(--gold);
  color: #fff;
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: var(--radius-badge);
  letter-spacing: 0.06em;
}
.price-name {
  font-family: "Noto Serif SC", serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}
.price-audience {
  font-size: 0.85rem;
  color: var(--text-sec);
  margin-top: 6px;
  line-height: 1.6;
}
.price-value {
  font-family: "Noto Serif SC", serif;
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 2px;
}
.price-value .currency {
  font-size: 0.55em;
  vertical-align: super;
  color: var(--gold);
  margin-right: 2px;
}
.price-desc {
  font-size: 0.82rem;
  color: var(--text-sec);
}
.price-features {
  list-style: none;
  padding: 0;
}
.price-features li {
  position: relative;
  padding-left: 18px;
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.8;
}
.price-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}
.price-action {
  text-align: center;
}
.price-action .btn {
  min-width: 140px;
}

/* ===== 11. News / CMS Section ===== */
.news-section {
  background: #F3EDE4;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item {
  display: flex;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(107,79,58,0.16);
  transition: background 0.3s ease;
}
.news-item:hover {
  background: rgba(250,246,240,0.4);
  padding-left: 10px;
  padding-right: 10px;
}
.news-item:first-child {
  padding-top: 0;
}
.news-cover {
  flex: 0 0 30%;
  border-radius: var(--radius-img);
  overflow: hidden;
  background: var(--bg-warm);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Cpath d='M14 26h36v10a8 8 0 0 1-8 8H22a8 8 0 0 1-8-8z' fill='none' stroke='%236B4F3A' stroke-width='2'/%3E%3Cpath d='M24 20h16' stroke='%23C6A15B' stroke-width='2'/%3E%3C/svg%3E") center/46px no-repeat, var(--bg-warm);
}
.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-item:hover .news-cover img {
  transform: scale(1.03);
}
.news-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-tag {
  display: inline-block;
  width: fit-content;
  padding: 2px 10px;
  background: rgba(62,95,78,0.08);
  color: var(--green);
  font-size: 0.75rem;
  border-radius: var(--radius-badge);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}
.news-body h3 {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.5;
}
.news-body h3 a {
  display: inline;
  background-image: linear-gradient(to right, var(--primary), var(--primary));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size 0.25s ease;
}
.news-body h3 a:hover,
.news-body h3 a:focus-visible {
  background-size: 100% 2px;
}
.news-excerpt {
  font-size: 0.88rem;
  color: var(--text-sec);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-top: auto;
}
.news-date {
  font-size: 0.8rem;
  color: var(--text-sec);
  letter-spacing: 0.03em;
}
.news-read {
  font-size: 0.85rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-read:hover,
.news-read:focus-visible {
  gap: 8px;
}
.news-empty {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--text-sec);
  text-align: center;
}
.news-empty svg {
  width: 48px;
  height: 48px;
  stroke: var(--gold);
  stroke-width: 1;
  fill: none;
}
.news-empty p {
  font-size: 0.95rem;
}

/* ===== 12. FAQ Section ===== */
.faq-section {
  background: var(--bg-warm);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 24px 0 20px;
  cursor: pointer;
  width: 100%;
  text-align: left;
  background: none;
  color: var(--text);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  transition: color 0.25s ease;
}
.faq-item-header:hover,
.faq-item-header:focus-visible {
  color: var(--primary);
}
.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--primary);
  transition: transform 0.3s ease, background-color 0.3s ease, color 0.3s ease;
  line-height: 1;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.faq-item-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding-right: 40px;
}
.faq-item.active .faq-item-content {
  max-height: 240px;
  padding-bottom: 20px;
}
.faq-item-content p {
  font-size: 0.92rem;
  color: var(--text-sec);
  line-height: 1.8;
}

/* ===== 13. CTA Section ===== */
.cta-section {
  background: var(--dark);
  position: relative;
  padding: clamp(3rem, 6vw, 5rem) 0;
  text-align: center;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 1;
}
.cta-inner h2 {
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 600;
  color: #FFFDF8;
  line-height: 1.4;
  margin-bottom: 16px;
}
.cta-inner p {
  color: rgba(250,246,240,0.6);
  font-size: 0.92rem;
  margin-bottom: 28px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}
.cta-inner .btn {
  min-width: 200px;
}

/* ===== 14. Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(250,246,240,0.7);
  padding-top: 44px;
  padding-bottom: 28px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(250,246,240,0.1);
  margin-bottom: 36px;
}
.footer-logo {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: #FAF6F0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-logo .logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}
.footer-back {
  font-size: 0.88rem;
  color: rgba(250,246,240,0.55);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.25s ease;
}
.footer-back:hover,
.footer-back:focus-visible {
  color: var(--gold);
}
.footer-back svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 1.5;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}
.footer-col h4 {
  font-size: 0.9rem;
  color: #FAF6F0;
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.footer-col p {
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(250,246,240,0.55);
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: rgba(250,246,240,0.6);
  padding: 3px 0;
  transition: color 0.25s ease;
}
.footer-col a:hover,
.footer-col a:focus-visible {
  color: var(--gold);
}
.footer-bottom {
  border-top: 1px solid rgba(250,246,240,0.1);
  padding-top: 22px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(250,246,240,0.4);
  letter-spacing: 0.04em;
}

/* ===== 15. Media Queries ===== */
@media (max-width: 1024px) {
  .scenes-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .price-card {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 28px;
  }
  .price-action {
    text-align: left;
  }
  .topics-grid {
    gap: 18px;
  }
  .topic-cover {
    flex-basis: 36%;
  }
}
@media (max-width: 768px) {
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 84vw;
    background: var(--bg-warm);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 100px 36px 40px;
    gap: 20px;
    box-shadow: none;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }
  .site-nav.open {
    transform: translateX(0);
    box-shadow: -12px 0 40px rgba(31,25,21,0.12);
  }
  .site-nav::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(31,25,21,0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: -1;
  }
  .site-nav.open::before {
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-toggle.active svg {
    opacity: 0.7;
  }
  .hero {
    min-height: 80vh;
  }
  .hero-content {
    padding: 130px 0 100px;
  }
  .hero-badges {
    gap: 8px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 320px;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .stat-item + .stat-item::before {
    display: none;
  }
  .stat-item {
    padding: 0 1rem;
  }
  .topics-grid {
    grid-template-columns: 1fr;
  }
  .topic-card {
    flex-direction: column;
  }
  .topic-cover {
    flex-basis: 200px;
    min-height: 180px;
  }
  .topic-cover img {
    height: 100%;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .news-item {
    flex-direction: column;
    gap: 12px;
    padding: 20px 0;
  }
  .news-item:hover {
    padding-left: 0;
    padding-right: 0;
    background: transparent;
  }
  .news-cover {
    flex-basis: auto;
    min-height: 160px;
  }
  .news-cover img {
    width: 100%;
    min-height: 160px;
    object-fit: cover;
  }
  .footer-cols {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-top {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }
  .price-card.featured {
    transform: scale(1.02);
  }
  .price-card:hover {
    transform: translateY(0);
  }
}
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .hero-title {
    font-size: 2rem;
  }
  .hero-desc {
    font-size: 0.92rem;
  }
  .hero-badge {
    font-size: 0.72rem;
    padding: 4px 10px;
  }
  .stat-number {
    font-size: 2.2rem;
  }
  .topic-body {
    padding: 22px 20px;
  }
  .story-item {
    flex-direction: column;
    gap: 12px;
  }
  .story-dot {
    display: none;
  }
  .story-item::before {
    display: none;
  }
  .story-quote {
    padding-left: 12px;
  }
  .price-card {
    padding: 24px 20px;
  }
  .price-value {
    font-size: 2rem;
  }
  .btn {
    width: 100%;
    padding: 13px 20px;
  }
  .faq-item-content {
    padding-right: 0;
  }
  .cta-inner h2 {
    font-size: 1.5rem;
  }
}

/* ===== 16. Additional Utilities ===== */
.section-label {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(198,161,91,0.14);
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border-radius: var(--radius-badge);
  margin-bottom: 16px;
}
.text-center {
  text-align: center;
}
.mt-0 {
  margin-top: 0;
}

/* roulang page: article */
:root {
  --primary: #6B4F3A;
  --primary-dark: #543C2C;
  --gold: #C6A15B;
  --green: #3E5F4E;
  --bg: #FAF6F0;
  --bg-light: #F3EDE4;
  --dark: #1F1915;
  --text: #2B231E;
  --text-light: #7A6A5D;
  --border: #E8DED2;
  --white: #FFFFFF;
  --card-radius: 14px;
  --img-radius: 10px;
  --btn-radius: 40px;
  --shadow-sm: 0 1px 2px rgba(31,25,21,0.04), 0 8px 24px rgba(31,25,21,0.06);
  --shadow-hover: 0 12px 32px rgba(31,25,21,0.10);
  --container-w: 1200px;
  --read-w: 760px;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --transition: 0.3s ease;
}
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}
ul, ol {
  list-style-position: inside;
}
::selection {
  background: rgba(198, 161, 91, 0.3);
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  background: var(--primary);
  color: var(--bg);
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 0.85rem;
  transition: top 0.3s ease;
}
.skip-link:focus {
  top: 12px;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 2px;
}
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: var(--btn-radius);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  position: relative;
  line-height: 1.4;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
.btn-primary {
  background: var(--dark);
  color: var(--bg);
}
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.3s ease;
}
.btn-primary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-primary:hover::after {
  width: 24px;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(107, 79, 58, 0.08);
  transform: translateY(-2px);
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(250, 246, 240, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(31, 25, 21, 0.06);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text);
  flex-shrink: 0;
}
.logo-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.logo:hover .logo-dot {
  transform: rotate(45deg) scale(1.15);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}
.site-nav .nav-link {
  position: relative;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--text);
  padding: 8px 0;
  text-decoration: none;
}
.site-nav .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.site-nav .nav-link:hover::after {
  width: 100%;
}
.site-nav .nav-link.active::after {
  width: 20px;
}
.site-nav .nav-link.active:hover::after {
  width: 100%;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.nav-toggle:hover {
  border-color: var(--primary);
  background: rgba(107, 79, 58, 0.05);
}
.nav-toggle svg {
  width: 20px;
  height: 20px;
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Breadcrumb */
.breadcrumb-wrap {
  padding: 28px 0 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--text-light);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.25s ease;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--border);
}
.breadcrumb .current {
  color: var(--primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 420px;
}

/* Article header */
.article-header {
  padding: clamp(2.5rem, 5vw, 4rem) 0 0;
  background: var(--bg);
}
.article-header-inner {
  max-width: var(--read-w);
  margin: 0 auto;
  text-align: left;
}
.article-meta-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}
.cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: rgba(62, 95, 78, 0.08);
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 4px;
  line-height: 1.5;
}
.meta-time {
  font-size: 0.8rem;
  color: var(--text-light);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-time svg {
  width: 14px;
  height: 14px;
}
.article-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}
.article-header .article-source {
  font-size: 0.8rem;
  color: var(--text-light);
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.article-header .article-source svg {
  width: 14px;
  height: 14px;
}

/* Article content */
.article-content-wrap {
  background: var(--bg);
  padding: clamp(2rem, 4vw, 3rem) 0 0;
}
.article-container {
  max-width: var(--read-w);
  margin: 0 auto;
}
.article-content {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
  letter-spacing: 0.01em;
}
.article-content p {
  margin-bottom: 1.5em;
}
.article-content h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin: 2.2rem 0 1rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
  font-family: var(--font-serif);
}
.article-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.8rem 0 0.9rem;
  line-height: 1.5;
}
.article-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary);
  margin: 1.5rem 0 0.7rem;
}
.article-content a {
  color: var(--primary);
  border-bottom: 1px solid var(--gold);
  text-decoration: none;
  transition: background 0.25s ease, border-color 0.25s ease;
}
.article-content a:hover {
  background: rgba(198, 161, 91, 0.10);
  border-color: transparent;
}
.article-content blockquote {
  margin: 1.8rem 0;
  padding: 0.6rem 0 0.6rem 1.3rem;
  border-left: 3px solid var(--primary);
  color: var(--text-light);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.8;
  background: rgba(232, 222, 210, 0.2);
  border-radius: 0 8px 8px 0;
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content img {
  width: 100%;
  border-radius: var(--img-radius);
  margin: 1.8rem 0 0.6rem;
  box-shadow: var(--shadow-sm);
}
.article-content figure {
  margin: 1.8rem 0;
}
.article-content figure img {
  margin: 0 0 0.5rem;
}
.article-content figcaption {
  font-size: 0.8rem;
  color: var(--text-light);
  text-align: center;
  letter-spacing: 0.02em;
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.5rem;
  padding-left: 0;
}
.article-content ul {
  list-style: none;
}
.article-content ul li {
  padding-left: 1.4rem;
  position: relative;
  margin-bottom: 0.5rem;
}
.article-content ul li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.78em;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}
.article-content ol {
  list-style: decimal;
  padding-left: 1.2rem;
}
.article-content ol li {
  margin-bottom: 0.5rem;
  padding-left: 0.4rem;
}
.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.2rem 0;
}
.article-content strong {
  font-weight: 600;
  color: var(--text);
}
.article-content em {
  font-style: italic;
  color: var(--text);
}

/* Tags */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 1.8rem 0 0;
  margin-top: 1.2rem;
  border-top: 1px solid var(--border);
}
.tags-label {
  font-size: 0.8rem;
  color: var(--text-light);
  letter-spacing: 0.06em;
  margin-right: 2px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: rgba(62, 95, 78, 0.08);
  color: var(--green);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.tag:hover {
  background: rgba(62, 95, 78, 0.18);
  color: var(--green);
  transform: translateY(-1px);
}

/* Missing article */
.article-missing {
  padding: clamp(3rem, 6vw, 5rem) 0;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.missing-box {
  text-align: center;
  padding: 48px 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
}
.missing-box svg {
  width: 48px;
  height: 48px;
  stroke: var(--primary);
  margin: 0 auto 20px;
}
.missing-box h1 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.missing-box p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 24px;
}

/* Related section */
.related-section {
  background: var(--bg-light);
  padding: clamp(3.5rem, 8vw, 5.5rem) 0 3rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
  line-height: 1.3;
}
.section-head .section-sub {
  font-size: 0.85rem;
  color: var(--text-light);
  letter-spacing: 0.04em;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.related-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(107, 79, 58, 0.4);
}
.related-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--border);
}
.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-cover img {
  transform: scale(1.03);
}
.related-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(31, 25, 21, 0.08));
  pointer-events: none;
}
.related-body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-body .cat-badge {
  align-self: flex-start;
  margin-bottom: 12px;
}
.related-body h3 {
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
  letter-spacing: 0.01em;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3.2em;
}
.related-body p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}
.related-time {
  font-size: 0.78rem;
  color: var(--text-light);
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-time::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--gold);
}

/* Back home */
.back-home {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  text-align: center;
  background: var(--bg-light);
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: rgba(250, 246, 240, 0.7);
  padding-top: 56px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--bg);
  text-decoration: none;
  flex-shrink: 0;
}
.footer-logo:hover .logo-dot {
  transform: rotate(45deg) scale(1.15);
}
.footer-logo .logo-dot {
  width: 7px;
  height: 7px;
}
.footer-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(250, 246, 240, 0.65);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--btn-radius);
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}
.footer-back:hover {
  color: var(--bg);
  border-color: rgba(198, 161, 91, 0.6);
  background: rgba(198, 161, 91, 0.06);
}
.footer-back svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding: 40px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--bg);
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.footer-col p {
  font-size: 0.82rem;
  line-height: 1.9;
  color: rgba(250, 246, 240, 0.55);
  max-width: 300px;
}
.footer-col a {
  display: block;
  font-size: 0.82rem;
  color: rgba(250, 246, 240, 0.55);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.25s ease, padding-left 0.25s ease;
  position: relative;
}
.footer-col a:hover {
  color: var(--gold);
  padding-left: 4px;
}
.footer-bottom {
  padding: 24px 0 32px;
  font-size: 0.78rem;
  color: rgba(250, 246, 240, 0.4);
  letter-spacing: 0.04em;
  text-align: center;
}

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

/* Tablet */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .related-card:last-child {
    display: none;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .header-inner {
    min-height: 62px;
  }
  .site-nav {
    position: fixed;
    top: 62px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(31, 25, 21, 0.08);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 999;
  }
  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .site-nav .nav-link {
    width: 100%;
    padding: 16px 0;
    font-size: 1rem;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--border);
  }
  .site-nav .nav-link:last-child {
    border-bottom: none;
  }
  .site-nav .nav-link.active::after {
    width: 20px;
    left: 0;
    transform: none;
  }
  .site-nav .nav-link.active:hover::after {
    width: 40px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .breadcrumb-wrap {
    padding-top: 18px;
  }
  .breadcrumb .current {
    max-width: 220px;
  }
  .article-header {
    padding-top: 2rem;
  }
  .article-header h1 {
    line-height: 1.4;
  }
  .article-content {
    font-size: 0.92rem;
    line-height: 1.85;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .related-card:last-child {
    display: flex;
  }
  .related-cover {
    aspect-ratio: 16 / 10;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .footer-cols {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .back-home {
    padding: 2.5rem 0;
  }
  .btn {
    width: 100%;
    max-width: 320px;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }
  .logo {
    font-size: 0.95rem;
    letter-spacing: 0.14em;
  }
  .article-header h1 {
    font-size: 1.45rem;
  }
  .article-tags {
    gap: 8px;
  }
  .tag {
    font-size: 0.75rem;
    padding: 4px 10px;
  }
  .related-cover {
    aspect-ratio: 16 / 9;
  }
  .related-body {
    padding: 16px 18px 18px;
  }
  .missing-box {
    padding: 36px 20px;
  }
}