/* roulang page: index */
:root {
  --primary: #1B4B43;
  --primary-dark: #12332D;
  --gold: #C7A468;
  --gold-dark: #B58E52;
  --gold-light: #F5EFE3;
  --ink: #22262B;
  --canvas: #F6F5F1;
  --card-bg: #FFFFFF;
  --text-main: #2A2E33;
  --text-sub: #6B7076;
  --text-placeholder: #9AA1A8;
  --border-line: #E5E3DE;
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-pill: 999px;
  --radius-img: 12px;
  --shadow-card: 0 1px 3px rgba(34,38,43,0.06);
  --shadow-hover: 0 10px 28px rgba(34,38,43,0.12);
  --shadow-nav: 0 2px 12px rgba(34,38,43,0.06);
  --gap-section: 80px;
  --gap-section-mobile: 48px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  background-color: var(--canvas);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; }
input, button, textarea { border: none; outline: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }

.container-x {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

@media (max-width: 520px) {
  .container-x { padding-left: 16px; padding-right: 16px; }
}

.section-space { padding-top: var(--gap-section); padding-bottom: var(--gap-section); }
@media (max-width: 768px) {
  .section-space { padding-top: var(--gap-section-mobile); padding-bottom: var(--gap-section-mobile); }
}

/* ---- 导航 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--border-line);
  transition: box-shadow .3s ease, height .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 2px 12px rgba(34,38,43,0.06);
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  padding: 8px 2px;
  transition: color .2s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(.5);
  transition: opacity .2s ease, transform .2s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { opacity: .4; transform: scaleX(1); }
.nav-link.active { color: var(--ink); font-weight: 600; }
.nav-link.active::after { opacity: 1; transform: scaleX(1); }

.search-box {
  width: 200px;
  height: 38px;
  border: 1px solid var(--border-line);
  border-radius: 999px;
  padding: 0 16px 0 36px;
  font-size: 14px;
  background: var(--canvas);
  transition: border-color .2s ease, background .2s ease;
}
.search-box::placeholder { color: var(--text-placeholder); }
.search-box:focus { border-color: var(--gold); background: #fff; }
.search-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-placeholder);
  pointer-events: none;
}

.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gold);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  padding: 10px 24px;
  transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-gold:hover { background: var(--gold-dark); box-shadow: 0 4px 14px rgba(199,164,104,.3); transform: translateY(-1px); }
.btn-gold:active { transform: translateY(0); box-shadow: 0 2px 6px rgba(199,164,104,.2); }
.btn-gold:focus-visible { outline: 2px solid var(--gold-dark); outline-offset: 2px; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 10px 24px;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-outline:hover { background: var(--gold-light); border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.btn-outline:active { transform: translateY(0); }
.btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* ---- 移动端菜单 ---- */
.mobile-menu-link {
  display: block;
  padding: 14px 20px;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-main);
  border-left: 3px solid transparent;
  transition: background .2s ease, border-color .2s ease;
}
.mobile-menu-link:hover { background: var(--canvas); }
.mobile-menu-link.active { border-left-color: var(--gold); color: var(--primary); font-weight: 600; }

/* ---- Hero ---- */
.hero-section {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(27,75,67,.92) 0%, rgba(27,75,67,.72) 55%, rgba(27,75,67,.38) 100%);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  border: 1px solid rgba(199,164,104,.6);
  border-radius: 999px;
  padding: 0 14px;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: .05em;
}

.hero-stat {
  text-align: center;
  padding: 20px 12px;
  border-left: 1px solid rgba(255,255,255,.14);
}
.hero-stat:first-child { border-left: none; }
.hero-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.hero-stat-label {
  font-size: 12px;
  color: rgba(255,255,255,.65);
  margin-top: 4px;
}

/* ---- 价值速览 ---- */
.value-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: 12px;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.value-item:hover {
  background: #fff;
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.value-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(27,75,67,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--primary);
}

/* ---- 功能轮播 ---- */
.carousel-section {
  background: var(--ink);
}
.carousel-viewport {
  overflow: hidden;
}
.carousel-track {
  display: flex;
  transition: transform .4s ease;
}
.carousel-slide {
  flex: 0 0 33.333%;
  padding: 0 14px;
}
@media (max-width: 1023px) {
  .carousel-slide { flex: 0 0 50%; }
}
@media (max-width: 767px) {
  .carousel-slide { flex: 0 0 100%; }
}
.carousel-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: #2d3137;
}
.carousel-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.carousel-card:hover img { transform: scale(1.03); }
.carousel-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(0,0,0,.55);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
  letter-spacing: .02em;
}
.carousel-arrow {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.carousel-arrow:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}

/* ---- 系统要求 ---- */
.sys-card {
  background: #fff;
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: box-shadow .2s ease, transform .2s ease;
}
.sys-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.sys-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #F0EEE9;
  font-size: 14px;
}
.sys-row:last-child { border-bottom: none; }
.sys-label { color: var(--text-sub); }
.sys-value { color: var(--ink); font-weight: 600; }

/* ---- 评价卡片 ---- */
.review-card {
  background: #fff;
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 28px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.review-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

/* ---- FAQ ---- */
.faq-item {
  background: #fff;
  border: 1px solid var(--border-line);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover { border-color: rgba(199,164,104,.5); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color .2s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform .3s ease;
  color: var(--text-placeholder);
}
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--gold); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* ---- 下载按钮 ---- */
.download-btn {
  height: 56px;
  border-radius: 8px;
  border: 1px solid var(--ink);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.download-btn:hover {
  background: var(--gold-light);
  border-color: var(--primary);
  box-shadow: 0 6px 16px rgba(27,75,67,.08);
  transform: translateY(-1px);
}
.download-btn-primary {
  background: var(--gold);
  border-color: var(--gold);
  color: #fff;
}
.download-btn-primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  box-shadow: 0 6px 16px rgba(199,164,104,.3);
}

/* ---- 资讯卡片 ---- */
.news-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border-line);
  border-radius: 12px;
  padding: 28px;
  height: 100%;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.news-card:hover {
  border-color: rgba(199,164,104,.5);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.news-badge {
  display: inline-block;
  background: var(--gold-light);
  color: #a8874a;
  font-size: 12px;
  font-weight: 500;
  border-radius: 4px;
  padding: 3px 10px;
}
.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 14px;
}
.news-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 10px;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-placeholder);
  font-size: 15px;
}
.empty-state-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--canvas);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--text-placeholder);
}

/* ---- CTA ---- */
.cta-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(199,164,104,.15);
  border-radius: 50%;
  pointer-events: none;
}
.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: 60px;
  width: 260px;
  height: 260px;
  border: 2px solid rgba(199,164,104,.08);
  border-radius: 50%;
  pointer-events: none;
}

/* ---- 页脚 ---- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,.7);
}
.footer-link {
  display: block;
  font-size: 13px;
  color: #9aa1a8;
  padding: 4px 0;
  transition: color .2s ease;
}
.footer-link:hover { color: var(--gold); }
.footer-title {
  font-size: 14px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: .02em;
}
.footer-social {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: border-color .2s ease, background .2s ease, color .2s ease;
}
.footer-social:hover {
  border-color: var(--gold);
  background: rgba(199,164,104,.1);
  color: var(--gold);
}

/* ---- 通用 ---- */
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.section-desc {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 560px;
  line-height: 1.7;
}
.see-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  transition: gap .2s ease;
}
.see-more-link:hover { gap: 10px; }

.badge-mini {
  display: inline-block;
  background: var(--gold-light);
  color: #a8874a;
  font-size: 12px;
  border-radius: 4px;
  padding: 2px 10px;
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root {
    --primary: #1B4B43;
    --gold: #C7A468;
    --gold-dark: #B58E52;
    --ink: #22262B;
    --canvas: #F6F5F1;
    --white: #FFFFFF;
    --line: #E5E3DE;
    --mute: #6B7076;
    --text: #2A2E33;
    --radius-card: 8px;
    --radius-btn: 6px;
    --shadow-card: 0 1px 3px rgba(34,38,43,0.06);
    --shadow-lift: 0 10px 28px rgba(34,38,43,0.12);
    --speed: 200ms ease;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
    background: var(--canvas);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: color var(--speed), background-color var(--speed), opacity var(--speed), transform var(--speed), box-shadow var(--speed);
  }

  button, input {
    font: inherit;
  }

  .container-x {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    transition: box-shadow var(--speed), background-color var(--speed);
  }

  .site-header.scrolled {
    box-shadow: 0 2px 12px rgba(34, 38, 43, 0.06);
  }

  .nav-link {
    position: relative;
    display: inline-block;
    padding: 6px 2px;
    color: var(--mute);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: color var(--speed);
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    border-radius: 2px;
    background: var(--gold);
    opacity: 0;
    transform: scaleX(0.5);
    transition: opacity var(--speed), transform var(--speed);
  }

  .nav-link:hover {
    color: var(--primary);
  }

  .nav-link:hover::after {
    opacity: 0.4;
    transform: scaleX(1);
  }

  .nav-link.active {
    color: var(--ink);
    font-weight: 600;
  }

  .nav-link.active::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .search-box {
    width: 180px;
    height: 38px;
    padding: 0 14px 0 36px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--canvas);
    font-size: 14px;
    color: var(--text);
    outline: none;
    transition: border-color var(--speed), box-shadow var(--speed), background-color var(--speed);
  }

  .search-box::placeholder {
    color: #9AA1A8;
  }

  .search-box:focus {
    border-color: var(--gold);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(199, 164, 104, 0.15);
  }

  .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #9AA1A8;
    pointer-events: none;
  }

  .btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 40px;
    padding: 0 22px;
    background: var(--gold);
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color var(--speed), box-shadow var(--speed), transform var(--speed), border-color var(--speed);
  }

  .btn-gold:hover {
    background: var(--gold-dark);
    box-shadow: 0 6px 16px rgba(199, 164, 104, 0.3);
    transform: translateY(-2px);
  }

  .btn-gold:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(199, 164, 104, 0.25);
  }

  .btn-gold:focus-visible,
  .btn-outline:focus-visible,
  .btn-outline-white:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
  }

  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 40px;
    padding: 0 22px;
    background: var(--white);
    color: var(--ink);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(34, 38, 43, 0.2);
    cursor: pointer;
    transition: background-color var(--speed), border-color var(--speed), box-shadow var(--speed), transform var(--speed);
  }

  .btn-outline:hover {
    background: #F5EFE3;
    border-color: var(--gold);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(34, 38, 43, 0.06);
  }

  .btn-outline:active {
    transform: translateY(0);
  }

  .btn-lg {
    height: 48px;
    padding: 0 32px;
    font-size: 16px;
  }

  .btn-white-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 46px;
    padding: 0 30px;
    background: transparent;
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-btn);
    border: 1px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color var(--speed), border-color var(--speed), transform var(--speed);
  }

  .btn-white-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    transform: translateY(-2px);
  }

  .btn-white-outline:active {
    transform: translateY(0);
  }

  /* ===== Page Hero ===== */
  .page-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    background-color: var(--primary);
    min-height: 380px;
    display: flex;
    align-items: center;
    padding: 72px 0 56px;
    color: var(--white);
  }

  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(27, 75, 67, 0.94) 40%, rgba(27, 75, 67, 0.72));
    pointer-events: none;
  }

  .page-hero .container-x {
    position: relative;
    z-index: 2;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 26px;
    padding: 0 12px;
    border: 1px solid rgba(199, 164, 104, 0.6);
    border-radius: 999px;
    font-size: 12px;
    color: #EAD9B3;
    letter-spacing: 0.02em;
    background: rgba(27, 75, 67, 0.3);
    margin-bottom: 20px;
  }

  .hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 18px;
  }

  .hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.65);
    transition: color var(--speed);
  }

  .hero-breadcrumb a:hover {
    color: var(--gold);
  }

  .hero-breadcrumb span {
    color: rgba(255, 255, 255, 0.4);
  }

  .page-hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin: 0 0 16px;
  }

  .hero-desc {
    max-width: 640px;
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 28px;
  }

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

  /* ===== Section ===== */
  .section {
    padding: 80px 0;
  }

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

  .section-head {
    max-width: 720px;
    margin: 0 auto 48px;
    text-align: center;
  }

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

  .section-tag {
    display: inline-block;
    font-size: 13px;
    color: var(--gold-dark);
    background: #F5EFE3;
    border-radius: 4px;
    padding: 4px 10px;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
    font-weight: 500;
  }

  .section-head h2 {
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin: 0 0 14px;
  }

  .section-head p {
    color: var(--mute);
    line-height: 1.8;
    font-size: 15px;
    margin: 0;
  }

  /* ===== Value / Stat ===== */
  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .stat-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 32px 24px;
    text-align: left;
    box-shadow: var(--shadow-card);
    transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
  }

  .stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lift);
    border-color: rgba(199, 164, 104, 0.4);
  }

  .stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    display: block;
  }

  .stat-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 0 0 8px;
  }

  .stat-card p {
    font-size: 14px;
    color: var(--mute);
    line-height: 1.7;
    margin: 0;
  }

  /* ===== Table ===== */
  .table-wrap {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow-card);
    overflow-x: auto;
  }

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

  .info-table th {
    background: #F8F7F4;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
  }

  .info-table td {
    padding: 18px 20px;
    border-bottom: 1px solid #F0EEE9;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text);
    vertical-align: top;
  }

  .info-table tr:last-child td {
    border-bottom: none;
  }

  .info-table tr:hover td {
    background: #FBFAF7;
  }

  .type-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    background: #F5EFE3;
    color: var(--gold-dark);
    white-space: nowrap;
  }

  /* ===== Steps ===== */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    counter-reset: step;
    position: relative;
  }

  .step-item {
    position: relative;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 32px 24px 28px;
    box-shadow: var(--shadow-card);
    transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
  }

  .step-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lift);
    border-color: rgba(199, 164, 104, 0.4);
  }

  .step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    font-variant-numeric: tabular-nums;
  }

  .step-item h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin: 0 0 8px;
  }

  .step-item p {
    font-size: 14px;
    color: var(--mute);
    line-height: 1.7;
    margin: 0;
  }

  /* ===== Scenario ===== */
  .scenario-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .scenario-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
    display: flex;
    flex-direction: column;
  }

  .scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
    border-color: rgba(199, 164, 104, 0.4);
  }

  .scenario-img {
    aspect-ratio: 16 / 10;
    background: #E8E5DF;
    overflow: hidden;
  }

  .scenario-img img {
    width: 100%;
    height: 100%;
    transition: transform 400ms ease;
  }

  .scenario-card:hover .scenario-img img {
    transform: scale(1.03);
  }

  .scenario-body {
    padding: 24px;
    flex: 1;
  }

  .scenario-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 0 0 10px;
  }

  .scenario-body p {
    font-size: 14px;
    color: var(--mute);
    line-height: 1.75;
    margin: 0;
  }

  /* ===== FAQ ===== */
  .faq-wrap {
    max-width: 820px;
    margin: 0 auto;
  }

  .faq-item {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color var(--speed), box-shadow var(--speed);
  }

  .faq-item.open {
    border-color: rgba(199, 164, 104, 0.5);
    box-shadow: var(--shadow-card);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    background: transparent;
    border: none;
    text-align: left;
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
    cursor: pointer;
    transition: background-color var(--speed);
  }

  .faq-question:hover {
    background: #FBFAF7;
  }

  .faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    position: relative;
    transition: transform var(--speed);
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--gold);
    border-radius: 1px;
    transition: opacity var(--speed), transform var(--speed);
  }

  .faq-icon::before {
    top: 9px;
    left: 2px;
    width: 16px;
    height: 2px;
  }

  .faq-icon::after {
    top: 2px;
    left: 9px;
    width: 2px;
    height: 16px;
  }

  .faq-item.open .faq-icon::after {
    opacity: 0;
    transform: rotate(90deg);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 260ms ease, padding 200ms ease;
  }

  .faq-answer-inner {
    padding: 0 22px 20px;
    font-size: 14px;
    color: var(--mute);
    line-height: 1.8;
    border-top: 1px solid #F0EEE9;
    padding-top: 16px;
    margin: 0 22px 0;
    padding-left: 0;
    padding-right: 0;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--primary);
    position: relative;
    padding: 80px 0;
    overflow: hidden;
    color: var(--white);
    text-align: center;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    top: -60px;
    right: -40px;
    width: 260px;
    height: 260px;
    border: 1px solid rgba(199, 164, 104, 0.2);
    border-radius: 50%;
    pointer-events: none;
  }

  .cta-section::after {
    content: "";
    position: absolute;
    bottom: -80px;
    left: 30px;
    width: 180px;
    height: 180px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    pointer-events: none;
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    max-width: 680px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: clamp(1.75rem, 3vw, 2.4rem);
    font-weight: 600;
    line-height: 1.3;
    margin: 0 0 14px;
    letter-spacing: -0.01em;
  }

  .cta-inner p {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.75);
    margin: 0 0 28px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--ink);
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    margin: 0 0 12px;
  }

  .footer-link {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    padding: 4px 0;
    transition: color var(--speed), padding-left var(--speed);
  }

  .footer-link:hover {
    color: var(--gold);
    padding-left: 4px;
  }

  .footer-social {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    transition: border-color var(--speed), color var(--speed), background-color var(--speed);
  }

  .footer-social:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: rgba(199, 164, 104, 0.1);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .stat-grid {
      grid-template-columns: repeat(2, 1fr);
    }

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

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

  @media (max-width: 768px) {
    .section {
      padding: 56px 0;
    }

    .page-hero {
      min-height: 340px;
      padding: 48px 0 40px;
    }

    .hero-desc {
      font-size: 15px;
    }

    .cta-section {
      padding: 56px 0;
    }
  }

  @media (max-width: 600px) {
    .container-x {
      padding: 0 16px;
    }

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

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

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

    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }

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

    .cta-actions {
      flex-direction: column;
      align-items: stretch;
    }

    .cta-actions .btn-gold,
    .cta-actions .btn-white-outline {
      width: 100%;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
      transition: opacity 100ms ease !important;
      animation: none !important;
    }
  }

/* roulang page: article */
:root {
            --primary: #1B4B43;
            --secondary: #C7A468;
            --secondary-dark: #B58E52;
            --ink: #22262B;
            --canvas: #F6F5F1;
            --card: #FFFFFF;
            --text-main: #2A2E33;
            --text-sub: #6B7076;
            --text-placeholder: #9AA1A8;
            --border: #E5E3DE;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-pill: 999px;
            --radius-img: 12px;
            --shadow-card: 0 1px 3px rgba(34, 38, 43, .06);
            --shadow-card-hover: 0 10px 28px rgba(34, 38, 43, .12);
            --shadow-nav: 0 2px 12px rgba(34, 38, 43, .06);
            --transition: 200ms ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            -webkit-text-size-adjust: 100%;
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
            color: var(--text-main);
            background: var(--canvas);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }
        .container-x {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width:640px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition), height var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }
        .nav-link {
            position: relative;
            font-size: .95rem;
            font-weight: 500;
            color: var(--text-sub);
            padding: 8px 2px;
            transition: color var(--transition);
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            right: 100%;
            bottom: -2px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: right var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            right: 0;
            opacity: .4;
        }
        .nav-link.active {
            color: var(--text-main);
            font-weight: 600;
        }
        .nav-link.active::after {
            right: 0;
        }
        .search-box {
            width: 180px;
            height: 38px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--canvas);
            padding: 0 14px 0 34px;
            font-size: .85rem;
            color: var(--text-main);
            transition: border-color var(--transition), background var(--transition), width .3s ease;
        }
        .search-box::placeholder {
            color: var(--text-placeholder);
        }
        .search-box:focus {
            border-color: var(--secondary);
            background: #fff;
            width: 210px;
            box-shadow: 0 0 0 3px rgba(199, 164, 104, .14);
        }
        .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-placeholder);
            pointer-events: none;
            display: flex;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 20px;
            background: var(--secondary);
            color: #fff;
            font-size: .875rem;
            font-weight: 600;
            border-radius: 6px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        .btn-gold:hover {
            background: var(--secondary-dark);
            box-shadow: 0 6px 16px rgba(199, 164, 104, .3);
        }
        .btn-gold:active {
            transform: translateY(1px);
            box-shadow: 0 3px 8px rgba(199, 164, 104, .25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 20px;
            background: #fff;
            color: var(--text-main);
            font-size: .875rem;
            font-weight: 500;
            border: 1px solid var(--border);
            border-radius: 6px;
            transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background: #f0f5f3;
            box-shadow: 0 4px 12px rgba(27, 75, 67, .08);
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        .mobile-nav-link {
            display: block;
            padding: 12px 8px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid #f0eee9;
            transition: background var(--transition), color var(--transition);
        }
        .mobile-nav-link:hover {
            background: var(--canvas);
            color: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            padding-top: 12px;
            padding-bottom: 12px;
            font-size: .875rem;
            color: var(--text-sub);
        }
        .breadcrumb-nav a {
            font-weight: 500;
            color: var(--text-sub);
            transition: color var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: #c9c6bf;
        }
        .breadcrumb-current {
            color: var(--text-main);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 320px;
        }

        /* Article Hero */
        .article-hero {
            background-color: var(--canvas);
            background-image: linear-gradient(rgba(246, 245, 241, .94), rgba(246, 245, 241, .94)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
            padding: 52px 0 40px;
            text-align: center;
        }
        .article-hero-title {
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            letter-spacing: -0.02em;
            max-width: 800px;
            margin: 14px auto 0;
        }
        .badge-gold {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 26px;
            padding: 0 12px;
            background: #F5EFE3;
            border: 1px solid rgba(199, 164, 104, .3);
            color: #a17a3a;
            font-size: .78rem;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: .02em;
        }
        .article-hero-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-top: 18px;
            font-size: .875rem;
            color: var(--text-sub);
        }
        .article-hero-meta .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #c9c6bf;
        }

        /* Article Body */
        .article-body {
            padding-top: 48px;
            padding-bottom: 64px;
        }
        .article-content {
            max-width: 720px;
            margin: 0 auto;
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-main);
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 600;
            line-height: 1.4;
            margin: 2.5rem 0 1rem;
            padding-bottom: .5rem;
            border-bottom: 1px solid var(--border);
            letter-spacing: -0.01em;
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            line-height: 1.4;
            margin: 2rem 0 .75rem;
        }
        .article-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 1.5rem 0 .6rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .article-content strong {
            font-weight: 600;
            color: var(--text-main);
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(27, 75, 67, .35);
            transition: text-decoration-color var(--transition), color var(--transition);
        }
        .article-content a:hover {
            color: var(--secondary-dark);
            text-decoration-color: var(--secondary-dark);
        }
        .article-content blockquote {
            border-left: 3px solid var(--secondary);
            background: #FAF6EE;
            padding: 1rem 1.5rem;
            margin: 1.75rem 0;
            border-radius: 0 6px 6px 0;
            color: var(--text-sub);
            font-style: normal;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5rem 0;
            padding-left: 1.5rem;
        }
        .article-content ul li,
        .article-content ol li {
            margin-bottom: .55rem;
            line-height: 1.7;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content img {
            border-radius: 12px;
            box-shadow: var(--shadow-card-hover);
            margin: 2rem auto;
            max-width: 100%;
            height: auto;
        }
        .article-content figure {
            margin: 2rem 0;
        }
        .article-content figure img {
            margin: 0 auto;
        }
        .article-content figcaption {
            text-align: center;
            font-size: .8rem;
            color: var(--text-placeholder);
            margin-top: .75rem;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.75rem 0;
            font-size: .9rem;
        }
        .article-content table th,
        .article-content table td {
            padding: 12px 14px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-content table th {
            background: #F0F5F3;
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
        }
        .article-content table tr:nth-child(even) td {
            background: #FAFAF8;
        }
        .article-content code {
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
            font-size: .88em;
            background: #f0eee9;
            padding: 2px 6px;
            border-radius: 4px;
            color: #b95140;
        }
        .article-content pre {
            background: var(--ink);
            color: #e8e6e3;
            padding: 1.25rem 1.5rem;
            border-radius: 8px;
            overflow-x: auto;
            margin: 1.75rem 0;
            font-size: .875rem;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-content hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 2.5rem 0;
        }

        /* Article Return */
        .article-return {
            max-width: 720px;
            margin: 48px auto 0;
            display: flex;
            justify-content: center;
            gap: 16px;
            border-top: 1px solid var(--border);
            padding-top: 32px;
        }

        /* Related */
        .related-section {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 56px 0 72px;
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--text-main);
            letter-spacing: -0.01em;
            margin-bottom: 32px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(199, 164, 104, .5);
            transform: translateY(-3px);
        }
        .related-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #e8e6e3;
            position: relative;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.45;
            margin: 12px 0 8px;
            transition: color var(--transition);
        }
        .related-card:hover .related-card-body h3 {
            color: var(--primary);
        }
        .related-card-body p {
            font-size: .84rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-top: auto;
        }

        /* Not Found */
        .not-found {
            max-width: 560px;
            margin: 80px auto;
            padding: 56px 40px;
            text-align: center;
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }
        .not-found-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #f0f5f3;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary);
        }
        .not-found h1 {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .not-found p {
            color: var(--text-sub);
            font-size: .95rem;
            margin-bottom: 28px;
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: #fff;
            font-size: .875rem;
        }
        .footer-title {
            font-size: .875rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .02em;
        }
        .footer-link {
            display: block;
            color: rgba(255, 255, 255, .55);
            font-size: .8125rem;
            line-height: 2.1;
            transition: color var(--transition);
        }
        .footer-link:hover {
            color: var(--secondary);
        }
        .footer-social {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .6);
            transition: border-color var(--transition), color var(--transition), background var(--transition);
        }
        .footer-social:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(199, 164, 104, .1);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .article-body {
                padding-top: 36px;
                padding-bottom: 48px;
            }
            .article-return {
                flex-direction: column;
                align-items: center;
            }
            .breadcrumb-current {
                max-width: 180px;
            }
        }
        @media (max-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-hero {
                padding: 40px 0 32px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category2 */
:root {
    --primary: #1B4B43;
    --secondary: #C7A468;
    --ink: #22262B;
    --canvas: #F6F5F1;
    --card: #FFFFFF;
    --text: #2A2E33;
    --text-weak: #6B7076;
    --line: #E5E3DE;
    --radius-card: 8px;
    --radius-btn: 6px;
    --shadow-card: 0 1px 3px rgba(34,38,43,0.06);
    --shadow-hover: 0 10px 28px rgba(34,38,43,0.12);
    --shadow-nav: 0 2px 12px rgba(34,38,43,0.06);
  }
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
    background-color: var(--canvas);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  img {
    max-width: 100%;
    display: block;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  button {
    font-family: inherit;
    cursor: pointer;
  }
  .container-x {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    width: 100%;
  }
  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--line);
    transition: box-shadow .2s ease;
  }
  .site-header.scrolled {
    box-shadow: var(--shadow-nav);
  }
  .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    position: relative;
    padding: 6px 2px;
    letter-spacing: .01em;
    transition: color .2s ease;
  }
  .nav-link:hover {
    color: var(--primary);
  }
  .nav-link.active {
    color: var(--ink);
    font-weight: 600;
  }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 2px;
    background: var(--secondary);
    border-radius: 2px;
  }
  .search-box {
    width: 170px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--canvas);
    padding-left: 34px;
    padding-right: 14px;
    font-size: 13px;
    color: var(--text);
    outline: none;
    transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
  }
  .search-box::placeholder {
    color: #9AA1A8;
  }
  .search-box:focus {
    border-color: var(--secondary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(199,164,104,.16);
  }
  .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #9AA1A8;
    display: flex;
    pointer-events: none;
  }
  .btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 20px;
    background: var(--secondary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid transparent;
    letter-spacing: .03em;
    transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
  }
  .btn-gold:hover {
    background: #B58E52;
    box-shadow: 0 6px 16px rgba(199,164,104,.3);
    transform: translateY(-1px);
  }
  .btn-gold:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(199,164,104,.2);
  }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 26px;
    background: #fff;
    color: var(--ink);
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid #22262B;
    letter-spacing: .02em;
    transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .btn-outline:hover {
    background: #F5EFE3;
    border-color: var(--primary);
  }
  .btn-outline:active {
    transform: translateY(0);
  }
  /* Page Hero */
  .page-hero {
    position: relative;
    min-height: 360px;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
  }
  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(27,75,67,.92) 15%, rgba(34,38,43,.72) 60%, rgba(34,38,43,.45) 100%);
  }
  .badge-gold {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 14px;
    border: 1px solid rgba(199,164,104,.7);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    color: #D9BC87;
    letter-spacing: .04em;
    background: rgba(27,75,67,.35);
    margin-bottom: 18px;
  }
  .page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    letter-spacing: -0.02em;
  }
  .page-hero p {
    font-size: 15px;
    color: rgba(255,255,255,.8);
    max-width: 560px;
    margin-top: 12px;
    line-height: 1.8;
  }
  /* Section */
  .section {
    padding: 80px 0;
  }
  .section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.015em;
    color: var(--ink);
  }
  .section-sub {
    font-size: 14px;
    color: var(--text-weak);
    margin-top: 8px;
  }
  .section-head {
    margin-bottom: 40px;
  }
  /* Step card */
  .step-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px 24px 24px;
    box-shadow: var(--shadow-card);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .step-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(199,164,104,.5);
  }
  .step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(27,75,67,.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    border: 1px solid rgba(27,75,67,.14);
    margin-bottom: 16px;
    font-variant-numeric: tabular-nums;
  }
  .step-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
  }
  .step-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
  }
  /* Content split */
  .split-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
  }
  .split-card img {
    object-fit: cover;
    width: 100%;
    aspect-ratio: 16 / 10;
  }
  .split-card-body {
    padding: 28px 30px;
  }
  .split-card-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
  }
  .split-card-body p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
  }
  .check-list {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .check-list li {
    list-style: none;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
  }
  .check-list li::before {
    content: "";
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--secondary);
    margin-top: 9px;
  }
  /* Spec table */
  .spec-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 28px;
    box-shadow: var(--shadow-card);
  }
  .spec-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
  }
  .spec-icon {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: rgba(27,75,67,.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
  }
  .spec-head h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
  }
  .spec-head span {
    font-size: 13px;
    color: var(--text-weak);
  }
  .spec-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #F0EEE9;
    font-size: 14px;
  }
  .spec-row:last-child {
    border-bottom: none;
  }
  .spec-row .label {
    color: var(--text-weak);
  }
  .spec-row .value {
    color: var(--ink);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
  }
  .badge-ok {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 12px;
    border: 1px solid #3E7C4F;
    color: #3E7C4F;
    font-size: 12px;
    border-radius: 4px;
    background: rgba(62,124,79,.06);
  }
  /* Scene card */
  .scene-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 30px 28px;
    box-shadow: var(--shadow-card);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .scene-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(199,164,104,.5);
  }
  .scene-card .icon {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    background: rgba(27,75,67,.08);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
  }
  .scene-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 10px;
  }
  .scene-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.75;
  }
  /* FAQ */
  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
  }
  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .faq-item.active {
    border-color: rgba(199,164,104,.6);
    box-shadow: 0 4px 16px rgba(34,38,43,.06);
  }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    transition: color .2s ease;
  }
  .faq-q:hover {
    color: var(--primary);
  }
  .faq-q .icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--secondary);
    transition: transform .25s ease, background .25s ease;
    font-style: normal;
  }
  .faq-item.active .faq-q .icon {
    transform: rotate(45deg);
    background: rgba(199,164,104,.1);
  }
  .faq-a {
    display: none;
    padding: 0 24px 22px;
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
  }
  .faq-item.active .faq-a {
    display: block;
  }
  /* CTA */
  .cta-section {
    background: var(--primary);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -60px;
    width: 260px;
    height: 260px;
    border: 1px solid rgba(199,164,104,.18);
    border-radius: 50%;
  }
  .cta-section::after {
    content: "";
    position: absolute;
    top: -20px;
    right: 20px;
    width: 160px;
    height: 160px;
    border: 1px solid rgba(199,164,104,.12);
    border-radius: 50%;
  }
  .btn-cta-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 32px;
    background: var(--secondary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    letter-spacing: .03em;
    transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
  }
  .btn-cta-gold:hover {
    background: #B58E52;
    box-shadow: 0 6px 16px rgba(199,164,104,.35);
    transform: translateY(-2px);
  }
  .btn-cta-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 32px;
    background: transparent;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,.7);
    letter-spacing: .02em;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
  }
  .btn-cta-outline:hover {
    background: rgba(255,255,255,.08);
    border-color: #fff;
    transform: translateY(-2px);
  }
  /* Entry link */
  .entry-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    transition: gap .2s ease, color .2s ease;
  }
  .entry-link:hover {
    gap: 12px;
    color: #B58E52;
  }
  /* Footer */
  .site-footer {
    background: var(--ink);
    color: rgba(255,255,255,.75);
  }
  .footer-title {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 14px;
  }
  .footer-link {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,.5);
    margin-bottom: 10px;
    transition: color .2s ease;
  }
  .footer-link:hover {
    color: var(--secondary);
  }
  .footer-social {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.6);
    transition: border-color .2s ease, color .2s ease, background .2s ease;
  }
  .footer-social:hover {
    border-color: var(--secondary);
    color: var(--secondary);
    background: rgba(199,164,104,.1);
  }
  /* Mobile menu */
  .mobile-nav a {
    display: block;
    padding: 14px 16px;
    font-size: 17px;
    font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid #F0EEE9;
    transition: background .2s ease, padding-left .2s ease;
  }
  .mobile-nav a:hover {
    background: var(--canvas);
    padding-left: 22px;
  }
  .mobile-nav a.active {
    border-left: 3px solid var(--secondary);
    background: rgba(199,164,104,.06);
    font-weight: 600;
  }
  /* Reduced motion */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
    html {
      scroll-behavior: auto;
    }
  }
  /* Responsive */
  @media (max-width: 1024px) {
    .container-x {
      padding-left: 20px;
      padding-right: 20px;
    }
    .section {
      padding: 64px 0;
    }
  }
  @media (max-width: 768px) {
    .container-x {
      padding-left: 16px;
      padding-right: 16px;
    }
    .section {
      padding: 48px 0;
    }
    .page-hero {
      min-height: 320px;
    }
    .page-hero p {
      font-size: 14px;
    }
    .split-card-body {
      padding: 22px;
    }
  }
  @media (max-width: 520px) {
    .section-head {
      margin-bottom: 28px;
    }
    .step-card {
      padding: 22px 18px;
    }
    .spec-card {
      padding: 20px 18px;
    }
    .scene-card {
      padding: 24px 20px;
    }
    .faq-q {
      padding: 16px 18px;
      font-size: 14px;
    }
    .faq-a {
      padding: 0 18px 18px;
    }
  }

/* roulang page: category3 */
:root {
            --primary: #1B4B43;
            --secondary: #C7A468;
            --ink: #22262B;
            --canvas: #F6F5F1;
            --card: #FFFFFF;
            --body-text: #2A2E33;
            --muted-text: #6B7076;
            --placeholder: #9AA1A8;
            --line: #E5E3DE;
            --success: #3E7C4F;
            --warning: #C7743C;
            --error: #B95140;
            --info: #3B6E8C;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-pill: 999px;
            --radius-image: 12px;
            --shadow-card: 0 1px 3px rgba(34, 38, 43, 0.06);
            --shadow-card-hover: 0 10px 28px rgba(34, 38, 43, 0.12);
            --shadow-nav: 0 2px 12px rgba(34, 38, 43, 0.06);
            --shadow-float: 0 24px 64px rgba(34, 38, 43, 0.18);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--canvas);
            color: var(--body-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 200ms ease, background-color 200ms ease, opacity 200ms ease;
        }

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

        button {
            cursor: pointer;
            background: none;
            border: none;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container-x {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .font-tabular {
            font-variant-numeric: tabular-nums;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid var(--line);
            transition: box-shadow 200ms ease, height 200ms ease;
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--muted-text);
            padding: 4px 2px;
            transition: color 200ms ease;
            white-space: nowrap;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--secondary);
            opacity: 0;
            transform: scaleX(0.4);
            transition: opacity 200ms ease, transform 200ms ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            opacity: 0.4;
            transform: scaleX(0.8);
        }

        .nav-link.active {
            color: var(--ink);
            font-weight: 600;
        }

        .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--secondary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.03em;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            box-shadow: 0 2px 8px rgba(199, 164, 104, 0.25);
            transition: background-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
        }

        .btn-gold:hover {
            background: #B58E52;
            box-shadow: 0 6px 16px rgba(199, 164, 104, 0.30);
            transform: translateY(-1px);
        }

        .btn-gold:active {
            transform: translateY(1px);
            box-shadow: 0 2px 6px rgba(199, 164, 104, 0.2);
        }

        .search-box {
            width: 180px;
            height: 38px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--line);
            background: #F8F7F4;
            padding: 0 14px 0 36px;
            font-size: 14px;
            color: var(--body-text);
            outline: none;
            transition: border-color 200ms ease, box-shadow 200ms ease, width 200ms ease;
        }

        .search-box::placeholder {
            color: var(--placeholder);
        }

        .search-box:focus {
            border-color: var(--secondary);
            width: 220px;
            box-shadow: 0 0 0 3px rgba(199, 164, 104, 0.15);
        }

        .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--placeholder);
            pointer-events: none;
            display: flex;
            align-items: center;
        }

        .mobile-nav-link {
            display: block;
            padding: 12px 4px;
            font-size: 17px;
            font-weight: 500;
            color: var(--body-text);
            border-bottom: 1px solid #F0EEE9;
            transition: background-color 200ms ease, color 200ms ease;
            position: relative;
        }

        .mobile-nav-link:hover {
            color: var(--primary);
            background: #F8F7F4;
        }

        .mobile-nav-link.active {
            color: var(--primary);
            font-weight: 600;
            padding-left: 16px;
        }

        .mobile-nav-link.active::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 16px;
            border-radius: 2px;
            background: var(--secondary);
        }

        .hero-category {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            background: linear-gradient(100deg, rgba(27, 75, 67, 0.92), rgba(34, 38, 43, 0.78)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .hero-category .breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 0.02em;
        }

        .hero-category .breadcrumb a:hover {
            color: var(--secondary);
        }

        .hero-category h1 {
            font-size: clamp(2rem, 4.5vw, 3rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .hero-category p.subtitle {
            font-size: 16px;
            max-width: 620px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .hero-category .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border: 1px solid rgba(199, 164, 104, 0.5);
            border-radius: 4px;
            font-size: 12px;
            color: var(--secondary);
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .section-block {
            padding: 80px 0;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--ink);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--muted-text);
            font-size: 15px;
            margin-bottom: 40px;
            max-width: 640px;
            line-height: 1.7;
        }

        .stat-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
            height: 100%;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(199, 164, 104, 0.4);
        }

        .stat-card .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(27, 75, 67, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .stat-card .stat-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: -0.01em;
            font-variant-numeric: tabular-nums;
        }

        .stat-card .stat-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--body-text);
            margin-top: 4px;
        }

        .stat-card .stat-desc {
            font-size: 13px;
            color: var(--muted-text);
            margin-top: 8px;
            line-height: 1.6;
        }

        .timeline-wrap {
            position: relative;
            padding-left: 32px;
        }

        .timeline-wrap::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: linear-gradient(to bottom, var(--secondary), rgba(27, 75, 67, 0.3));
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 32px 12px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -30px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--card);
            border: 3px solid var(--secondary);
        }

        .timeline-item .t-date {
            font-size: 12px;
            color: var(--muted-text);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            margin-bottom: 4px;
        }

        .timeline-item .t-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .timeline-item .t-desc {
            font-size: 14px;
            color: var(--muted-text);
            line-height: 1.7;
            max-width: 520px;
        }

        .compare-panel {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .compare-panel .cp-header {
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--ink);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 16px 24px;
        }

        .compare-panel .cp-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            padding: 14px 24px;
            font-size: 14px;
            border-top: 1px solid #F0EEE9;
            line-height: 1.7;
            background: #fff;
        }

        .compare-panel .cp-row:nth-child(even) {
            background: #FBFBFA;
        }

        .compare-panel .cp-row .cp-old {
            color: var(--muted-text);
            padding-right: 12px;
        }

        .compare-panel .cp-row .cp-new {
            color: var(--body-text);
            font-weight: 500;
            padding-left: 12px;
            border-left: 1px solid var(--line);
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 200ms ease, box-shadow 200ms ease;
        }

        .faq-item.active {
            border-color: rgba(199, 164, 104, 0.5);
            box-shadow: 0 4px 16px rgba(34, 38, 43, 0.06);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--ink);
            text-align: left;
            transition: color 200ms ease;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(27, 75, 67, 0.06);
            color: var(--primary);
            font-size: 18px;
            transition: transform 200ms ease, background-color 200ms ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(199, 164, 104, 0.15);
            color: var(--secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease;
        }

        .faq-answer .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--muted-text);
            line-height: 1.8;
        }

        .related-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
            height: 100%;
        }

        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(199, 164, 104, 0.4);
        }

        .related-card .rc-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(27, 75, 67, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .related-card .rc-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .related-card .rc-desc {
            font-size: 14px;
            color: var(--muted-text);
            line-height: 1.7;
            flex: 1;
        }

        .related-card .rc-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            margin-top: 16px;
            transition: gap 200ms ease;
        }

        .related-card .rc-link:hover {
            gap: 8px;
        }

        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 1px solid rgba(199, 164, 104, 0.15);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            right: 20px;
            top: 20px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 1px solid rgba(199, 164, 104, 0.1);
        }

        .cta-section .cta-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 600;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .cta-section .cta-sub {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            margin-bottom: 32px;
        }

        .btn-white-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: background-color 200ms ease, border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
        }

        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            transform: translateY(-1px);
        }

        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-link {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 0;
            transition: color 200ms ease;
        }

        .footer-link:hover {
            color: var(--secondary);
        }

        .footer-social {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
        }

        .footer-social:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(199, 164, 104, 0.1);
        }

        .feature-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow 200ms ease, transform 200ms ease, border-color 200ms ease;
            height: 100%;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(199, 164, 104, 0.35);
        }

        .feature-card .img-wrap {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #E8E7E2;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 300ms ease;
        }

        .feature-card:hover .img-wrap img {
            transform: scale(1.03);
        }

        .feature-card .content {
            padding: 24px;
        }

        .view-all-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: gap 200ms ease, color 200ms ease;
        }

        .view-all-link:hover {
            gap: 10px;
            color: var(--secondary);
        }

        @media (max-width: 1023px) {
            .section-block {
                padding: 60px 0;
            }
            .container-x {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

        @media (max-width: 767px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-block {
                padding: 48px 0;
            }
            .hero-category {
                min-height: 300px;
            }
            .compare-panel .cp-header {
                padding: 14px 16px;
                font-size: 13px;
            }
            .compare-panel .cp-row {
                padding: 12px 16px;
                font-size: 13px;
            }
            .faq-question {
                padding: 16px 16px;
                font-size: 15px;
            }
            .faq-answer .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 14px;
            }
            .stat-card {
                padding: 20px 16px;
            }
        }

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

        .timeline-item:focus-within .t-title {
            color: var(--primary);
        }

        .btn-gold:focus-visible,
        .btn-white-outline:focus-visible,
        .nav-link:focus-visible,
        .faq-question:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        .related-card:focus-within {
            border-color: rgba(199, 164, 104, 0.5);
        }