/* roulang page: index */
:root {
  --primary-deep: #0A4A42;
  --primary-mid: #116457;
  --primary-dark: #06362F;
  --accent-brass: #B67A44;
  --ink: #1A2622;
  --ink-soft: #5D665F;
  --bg-cream: #F7F5F0;
  --bg-white: #FFFFFF;
  --line: #E4E0D7;
  --danger: #AF443A;
  --success: #2E6B5C;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-card: 0 2px 8px rgba(20, 40, 35, .06);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg-cream);
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .25s ease; }
ul, ol { list-style: none; padding: 0; margin: 0; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0; }
p { margin: 0; }
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
@media (min-width: 768px) { .container { padding-left: 32px; padding-right: 32px; } }
@media (min-width: 1200px) { .container { padding-left: 48px; padding-right: 48px; } }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  height: 76px;
  border-bottom: 1px solid transparent;
  transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  background: rgba(247, 245, 240, .9);
  border-bottom-color: var(--line);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 18px rgba(15, 35, 30, .06);
}
.header-inner {
  height: 76px;
  display: flex;
  align-items: center;
  gap: 48px;
}
.brand {
  display: flex;
  align-items: baseline;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 25px;
  letter-spacing: .02em;
  color: var(--primary-deep);
  line-height: 1;
}
.brand-dot {
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--accent-brass);
  margin: 0 5px 0 3px;
  display: inline-block;
}
.brand-cn {
  font-size: 14px;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: .18em;
  font-family: var(--font-sans);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  color: var(--ink-soft);
  padding: 12px 0 14px;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: .02em;
}
.nav-link:hover { color: var(--primary-deep); }
.nav-link.is-active { color: var(--primary-deep); font-weight: 600; }
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 8px;
  width: 4px;
  height: 4px;
  border-radius: 99px;
  background: var(--accent-brass);
  transform: translateX(-50%);
}
.header-cta { margin-left: 6px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn:focus-visible {
  outline: 2px solid var(--accent-brass);
  outline-offset: 3px;
}
.btn-primary { background: var(--primary-deep); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(6, 54, 47, .18); }
.btn-light-outline { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .72); color: #fff; }
.btn-light-outline:hover { border-color: #fff; background: rgba(255, 255, 255, .16); transform: translateY(-2px); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-deep);
  font-weight: 600;
  font-size: 15px;
}
.btn-link-more span { transition: transform .2s ease; }
.btn-link-more:hover { color: var(--accent-brass); }
.btn-link-more:hover span { transform: translateX(4px); }

/* ===== Hero ===== */
.hero-section {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  background-color: var(--primary-deep);
  background-image: linear-gradient(96deg, rgba(7, 35, 31, .88) 0%, rgba(12, 68, 61, .62) 48%, rgba(12, 68, 61, .2) 100%), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center 32%;
  color: #fff;
  overflow: hidden;
}
.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: 172px;
  padding-bottom: 148px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
  letter-spacing: .16em;
  font-weight: 500;
  margin-bottom: 28px;
  text-transform: uppercase;
}
.hero-kicker .kicker-dot { width: 6px; height: 6px; background: var(--accent-brass); border-radius: 99px; display: inline-block; }
.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.2;
  color: #fff;
  letter-spacing: .02em;
  max-width: 920px;
  margin-bottom: 26px;
}
.hero-copy {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .82);
  max-width: 660px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 54px; }
.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, .72);
}
.hero-meta i {
  width: 4px;
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .4);
  display: inline-block;
}

/* ===== Section ===== */
.section { position: relative; padding: 104px 0; }
.section-white { background: var(--bg-white); }
.section-cream { background: var(--bg-cream); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--primary-mid);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 20px; height: 1px; background: var(--accent-brass); }
.h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-weight: 700;
  font-size: clamp(28px, 3.3vw, 40px);
  line-height: 1.32;
  max-width: 780px;
  margin-bottom: 22px;
}
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 58px; }
.section-head p { color: var(--ink-soft); max-width: 560px; font-size: 15px; }
.section-head-link { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; color: var(--ink-soft); font-weight: 600; font-size: 14px; }
.section-head-link span { color: var(--accent-brass); }
.section-head-link:hover { color: var(--primary-deep); }

/* ===== Brand story ===== */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(36px, 6vw, 100px);
}
.about-left h2 { margin-bottom: 26px; }
.about-left .about-note { color: var(--ink-soft); font-size: 15px; max-width: 460px; }
.about-text p { color: var(--ink-soft); margin-bottom: 24px; max-width: 68ch; }
.about-text p strong { color: var(--ink); font-weight: 600; }
.standout-quote {
  border-left: 2px solid var(--accent-brass);
  background: var(--bg-cream);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 24px 30px;
  margin: 0 0 26px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--primary-deep);
}
.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, .18);
  margin-top: 56px;
  padding-top: 34px;
  gap: 20px;
}
.brand-section .timeline {
  border-top-color: var(--line);
}
.timeline .tl-item { position: relative; padding-left: 18px; }
.timeline .tl-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: var(--accent-brass);
}
.tl-step { font-size: 12px; letter-spacing: .14em; color: var(--primary-mid); font-weight: 700; }
.tl-text { color: var(--ink); font-size: 14px; margin-top: 10px; }

/* ===== Feature grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px;
}
.feature-main { position: relative; background: var(--bg-cream); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: transform .3s ease, box-shadow .3s ease; }
.feature-main:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(14, 41, 34, .1); }
.media-frame { display: block; overflow: hidden; background: #DCE4DE; }
.media-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.feature-main .feature-img { aspect-ratio: 16 / 9; }
.feature-main:hover .feature-img img { transform: scale(1.04); }
.feature-body { padding: 32px 34px 38px; }
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  color: var(--primary-mid);
  background: #fff;
  line-height: 1;
  border-radius: 99px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
}
.badge-tag i { width: 5px; height: 5px; border-radius: 99px; background: var(--accent-brass); display: inline-block; }
.feature-body h3 { font-size: 24px; font-weight: 700; color: var(--ink); margin: 18px 0 14px; letter-spacing: .02em; }
.feature-body p { color: var(--ink-soft); font-size: 15px; line-height: 1.85; max-width: 68ch; }
.feature-body .btn-link-more { margin-top: 22px; }
.side-features { display: grid; grid-template-columns: 1fr; gap: 32px; }
.side-card { background: var(--bg-white); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .28s ease, box-shadow .3s ease; display: flex; flex-direction: column; }
.side-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.side-card .side-img { aspect-ratio: 16 / 9; overflow: hidden; }
.side-card .side-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.side-card:hover .side-img img { transform: scale(1.045); }
.side-content { padding: 24px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.side-content h3 { font-size: 18px; font-weight: 700; margin: 14px 0 10px; }
.side-content p { color: var(--ink-soft); font-size: 14px; line-height: 1.75; }
.side-content .btn-link-more { margin-top: auto; padding-top: 16px; font-size: 14px; }

/* ===== Service strip ===== */
.service-strip { margin-top: 62px; border-bottom: 1px solid var(--line); }
.service-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 24px 4px;
  border-top: 1px solid var(--line);
  transition: background-color .25s ease;
}
.service-row:hover { background: rgba(247, 245, 240, .45); }
.service-index { color: var(--accent-brass); font-size: 15px; font-weight: 700; letter-spacing: .08em; }
.service-name h3 { color: var(--ink); font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.service-name p { color: var(--ink-soft); font-size: 14px; max-width: 74ch; }
.service-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--primary-mid);
  margin-left: 6px;
}
.service-more { color: var(--ink-soft); font-size: 15px; }

/* ===== News / CMS list ===== */
.cms-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.news-row {
  display: grid;
  grid-template-columns: 148px minmax(0, 1fr) 116px;
  align-items: center;
  gap: 28px;
  padding: 28px 32px;
  border-bottom: 1px solid var(--line);
  transition: background-color .22s ease;
}
.news-row:last-child { border-bottom: none; }
.news-row:hover { background: var(--bg-cream); }
.news-thumb { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 1 / .78; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.news-row:hover .news-thumb img { transform: scale(1.03); }
.news-content .news-meta { display: flex; align-items: center; gap: 16px; color: var(--ink-soft); font-size: 13px; margin-bottom: 12px; }
.news-content .news-meta .cat { color: var(--primary-deep); font-weight: 600; }
.news-content .news-meta time { display: inline-flex; align-items: center; gap: 8px; }
.news-content .news-meta time::before { content: "·"; color: var(--accent-brass); }
.news-content h3 { font-size: 19px; font-weight: 700; color: var(--ink); line-height: 1.5; }
.news-content h3 a:hover { color: var(--primary-mid); }
.news-content p { color: var(--ink-soft); font-size: 14px; line-height: 1.8; margin-top: 10px; max-width: 82ch; }
.news-arrow { text-align: right; }
.news-arrow a { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 14px; font-weight: 600; }
.news-arrow a:hover { color: var(--accent-brass); }
.news-arrow a span { transition: transform .2s ease; }
.news-arrow a:hover span { transform: translateX(4px); }
.empty-tip {
  grid-column: 1 / -1;
  width: 100%;
  padding: 58px 24px;
  text-align: center;
  color: var(--ink-soft);
  background: #fff;
  font-size: 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

/* ===== Facts ===== */
.facts-section {
  background-color: var(--primary-deep);
  background-image: linear-gradient(78deg, rgba(6, 43, 39, .92), rgba(17, 100, 87, .8)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}
.facts-inner { padding: 92px 0; color: #fff; position: relative; z-index: 2; }
.facts-eyebrow { color: rgba(255, 255, 255, .78); }
.facts-title { color: #fff; font-family: var(--font-serif); font-size: clamp(28px, 3vw, 36px); max-width: 740px; line-height: 1.35; margin-bottom: 58px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 12px 32px 12px 0; }
.stat-item + .stat-item { border-left: 1px solid rgba(255, 255, 255, .2); padding-left: 32px; }
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(32px, 3.5vw, 48px);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  display: flex;
  align-items: baseline;
}
.stat-num small { font-size: 16px; color: var(--accent-brass); margin-left: 5px; }
.stat-label { margin-top: 12px; color: rgba(255, 255, 255, .7); font-size: 14px; letter-spacing: .02em; }

/* ===== FAQ ===== */
.faq-panel { max-width: 920px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); border-radius: 0; }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  list-style: none;
  padding: 26px 8px 26px 0;
  font-weight: 600;
  color: var(--ink);
  font-size: 17px;
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary-deep); }
.faq-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent-brass);
  border: 1px solid var(--line);
  border-radius: 99px;
  flex-shrink: 0;
  transition: transform .3s ease, border-color .2s ease, color .2s ease;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); border-color: var(--accent-brass); }
.faq-answer { padding: 0 44px 30px 8px; color: var(--ink-soft); font-size: 15px; line-height: 1.9; }

/* ===== Contact ===== */
.contact-section {
  background-color: var(--bg-cream);
  padding: 88px 0;
}
.cta-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  background-color: var(--primary-deep);
  background-image: linear-gradient(115deg, rgba(6, 48, 42, .96), rgba(17, 100, 87, .76)), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  border-radius: 18px;
  padding: clamp(32px, 5vw, 68px);
  overflow: hidden;
  box-shadow: 0 18px 44px rgba(12, 50, 43, .14);
}
.cta-copy h2 { color: #fff; font-family: var(--font-serif); font-size: clamp(28px, 3vw, 38px); line-height: 1.35; max-width: 520px; }
.cta-copy > p { color: rgba(255, 255, 255, .76); margin-top: 18px; font-size: 15px; max-width: 52ch; }
.cta-contact-line { margin-top: 26px; color: rgba(255, 255, 255, .8); font-size: 14px; display: inline-flex; flex-wrap: wrap; gap: 10px 20px; }
.cta-contact-line span b { font-weight: 600; color: #fff; }
.form-card { background: #fff; border-radius: 14px; padding: 30px 30px 34px; box-shadow: 0 8px 30px rgba(0, 0, 0, .1); }
.form-card h3 { font-size: 21px; color: var(--ink); font-weight: 700; margin-bottom: 6px; }
.form-card > p { color: var(--ink-soft); font-size: 13px; margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: 13px; font-weight: 600; color: var(--ink); }
.form-control {
  border: 1px solid var(--line);
  background: var(--bg-cream);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}
.form-control:focus { border-color: var(--primary-deep); background: #fff; box-shadow: 0 0 0 3px rgba(10, 74, 66, .1); }
textarea.form-control { min-height: 84px; resize: vertical; }
.form-submit { margin-top: 18px; width: 100%; text-align: center; }
.form-note { display: none; margin-top: 14px; padding: 12px 14px; background: rgba(46, 107, 92, .08); border: 1px solid rgba(46, 107, 92, .28); color: var(--success); border-radius: 8px; font-size: 14px; }
.form-note.show { display: block; }

/* ===== Footer ===== */
.site-footer { background: #07332E; color: rgba(255, 255, 255, .7); }
.footer-grid {
  display: grid;
  grid-template-columns: 5fr 2fr 3fr 3fr;
  gap: 44px;
  padding: 72px 0 64px;
}
.footer-brand .footer-logo { display: flex; align-items: baseline; color: #fff; }
.footer-brand .footer-logo .logo-word { font-family: var(--font-serif); font-size: 24px; font-weight: 700; color: #fff; }
.footer-brand .footer-logo i { width: 5px; height: 5px; background: var(--accent-brass); display: inline-block; border-radius: 99px; margin: 0 7px 0 4px; }
.footer-brand .footer-logo .logo-cn { font-size: 14px; letter-spacing: .2em; }
.footer-brand p { font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, .65); max-width: 42ch; margin: 16px 0 18px; }
.footer-note { font-size: 13px; color: rgba(255, 255, 255, .42); max-width: 46ch; line-height: 1.6; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; }
.footer-col a { display: block; color: rgba(255, 255, 255, .62); font-size: 14px; padding: 7px 0; }
.footer-col a:hover { color: #fff; }
.footer-contact p { font-size: 14px; line-height: 1.8; margin-bottom: 14px; color: rgba(255, 255, 255, .62); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .14); padding: 20px 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: rgba(255, 255, 255, .46); }

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-cream);
  padding: 24px;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; }
.mobile-menu-head .brand { color: var(--primary-deep); }
.mobile-close {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 99px;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-nav-list { margin: 54px 0 34px; border-top: 1px solid var(--line); }
.mobile-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 2px;
  border-bottom: 1px solid var(--line);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}
.mobile-nav-list a:hover { color: var(--primary-deep); }
.mobile-nav-list a span { color: var(--accent-brass); }
.mobile-nav-cta { margin-top: auto; display: flex; flex-direction: column; gap: 12px; }
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 99px;
  cursor: pointer;
}
.nav-burger i { display: block; width: 18px; height: 1.5px; background: var(--ink); position: relative; }
.nav-burger i::before, .nav-burger i::after { content: ""; position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--ink); }
.nav-burger i::before { top: -6px; }
.nav-burger i::after { top: 6px; }

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .main-nav { gap: 26px; }
  .header-cta { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .news-row { grid-template-columns: 120px minmax(0, 1fr); }
  .news-arrow { display: none; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; max-width: 560px; }
  .contact-panel { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .section { padding: 76px 0; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .about-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 30px; margin-top: 40px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); row-gap: 42px; }
  .stat-item + .stat-item { border-left: none; padding-left: 0; }
  .main-nav, .header-cta { display: none; }
  .nav-burger { display: inline-flex; margin-left: auto; }
  .cta-panel { padding: 34px 28px; gap: 36px; grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .hero-section { min-height: 620px; }
  .hero-inner { padding-top: 140px; padding-bottom: 96px; }
  .hero-actions .btn { width: 100%; }
  .container { padding-left: 20px; padding-right: 20px; }
  .service-row { grid-template-columns: 34px minmax(0, 1fr); }
  .service-tag { grid-column: 2 / 3; justify-self: start; }
  .news-row { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
  .news-thumb { aspect-ratio: 16 / 9; width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .form-group.full { grid-column: auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding: 56px 0 48px; }
  .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* roulang page: article */
:root{
    --primary-deep:#0A4A42;
    --primary-dark:#06362F;
    --primary-mid:#116457;
    --accent-brass:#B67A44;
    --ink:#1A2622;
    --ink-soft:#5D665F;
    --bg-cream:#F7F5F0;
    --bg-white:#FFFFFF;
    --bg-footer:#0A3530;
    --line:#E4E0D7;
    --danger:#AF443A;
    --success:#2E6B5C;
    --radius:8px;
    --radius-lg:14px;
    --shadow-soft:0 2px 8px rgba(20,40,35,.06);
    --shadow-lift:0 12px 32px rgba(14,36,30,.10);
    --font-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;color-scheme:light;}
body{
    margin:0;
    font-family:var(--font-body);
    font-size:16px;
    line-height:1.75;
    color:var(--ink);
    background:var(--bg-white);
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease;}
p{margin:0;}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.35;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font:inherit;}

.container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:clamp(20px,4vw,64px);
    padding-right:clamp(20px,4vw,64px);
}

/* 通用按钮与链接 */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-weight:600;
    line-height:1;
    border-radius:var(--radius);
    padding:15px 26px;
    border:1px solid transparent;
    transition:all .25s ease;
    white-space:nowrap;
}
.btn-primary{
    background:var(--primary-deep);
    color:#fff;
}
.btn-primary:hover{
    background:var(--primary-dark);
    transform:translateY(-2px);
    box-shadow:0 10px 24px rgba(10,74,66,.15);
}
.btn-primary:focus-visible,.btn-outline:focus-visible,.btn-light:focus-visible{
    outline:2px solid var(--accent-brass);
    outline-offset:3px;
}
.btn-outline{
    border-color:var(--line);
    background:#fff;
    color:var(--primary-deep);
}
.btn-outline:hover{
    border-color:var(--primary-deep);
    color:var(--primary-deep);
    background:rgba(10,74,66,.03);
    transform:translateY(-2px);
}
.btn-light{
    background:#fff;
    color:var(--primary-dark);
}
.btn-light:hover{
    background:var(--bg-cream);
    transform:translateY(-2px);
}
.text-link{
    color:var(--primary-deep);
    font-weight:600;
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.text-link .arrow{transition:transform .3s ease,color .3s ease;}
.text-link:hover{color:var(--accent-brass);}
.text-link:hover .arrow{transform:translateX(4px);color:var(--accent-brass);}
.btn-small{padding:11px 20px;font-size:15px;border-radius:6px;}

/* 页头导航 */
.site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
}
.header-inner{
    min-height:78px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
}
.brand{
    display:inline-flex;
    align-items:baseline;
    gap:3px;
    font-family:var(--font-serif);
    font-size:32px;
    letter-spacing:-.02em;
    color:var(--primary-deep);
    line-height:1;
    flex-shrink:0;
}
.brand i{
    width:5px;
    height:5px;
    border-radius:50%;
    background:var(--accent-brass);
    display:inline-block;
    margin-left:2px;
}
.logo-word{font-weight:700;}
.logo-cn{
    font-size:16px;
    font-family:var(--font-body);
    color:var(--ink);
    margin-left:7px;
    font-weight:600;
}
.main-nav{
    display:flex;
    align-items:center;
    gap:clamp(18px,3vw,40px);
}
.nav-link{
    font-size:15px;
    position:relative;
    padding:8px 0;
    color:var(--ink-soft);
    font-weight:500;
    letter-spacing:.01em;
}
.nav-link::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:0;
    height:2px;
    background:var(--accent-brass);
    transition:width .3s ease;
}
.nav-link:hover{color:var(--primary-deep);}
.nav-link:hover::after,.nav-link.is-active::after{width:26px;}
.nav-link.is-active{color:var(--primary-deep);font-weight:600;}
.header-actions{
    display:flex;
    align-items:center;
    gap:14px;
}
.header-cta{
    padding:12px 22px;
    font-size:14px;
    font-weight:600;
}
.nav-toggle{
    width:44px;
    height:44px;
    display:none;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    border:1px solid var(--line);
    border-radius:8px;
    background:#fff;
}
.nav-toggle span{
    width:18px;
    height:2px;
    background:var(--primary-deep);
    border-radius:3px;
}
.mobile-nav-close{
    display:none;
}

/* 移动抽屉 */
.mobile-drawer{
    position:fixed;
    inset:0;
    background:var(--bg-cream);
    z-index:200;
    display:flex;
    flex-direction:column;
    padding:22px 0 36px;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .35s ease,visibility .35s ease;
}
.mobile-drawer.is-open{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
}
.drawer-header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 clamp(20px,4vw,32px);
    margin-bottom:24px;
}
.drawer-body{
    flex:1;
    overflow-y:auto;
    padding:0 clamp(20px,4vw,32px);
}
.drawer-body .nav-link{
    display:block;
    font-size:22px;
    padding:20px 0;
    border-bottom:1px solid var(--line);
    color:var(--ink);
    font-weight:600;
}
.drawer-body .nav-link.is-active{
    color:var(--primary-deep);
}
.drawer-body .nav-link:hover{color:var(--primary-deep);}
.drawer-cta{
    padding-top:24px;
    display:flex;
    flex-direction:column;
    gap:12px;
}
.drawer-cta a{width:100%;}
.btn-drawer-close{
    width:44px;
    height:44px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:8px;
    font-size:22px;
    color:var(--primary-deep);
}

/* 页面主体 */
.page-main{
    display:flex;
    flex-direction:column;
    min-height:calc(100vh - 78px);
    background:#fff;
}

/* 文章页头部 */
.article-hero{
    background:var(--bg-cream);
    border-bottom:1px solid var(--line);
    padding:72px 0 68px;
}
.article-breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:.04em;
    color:var(--ink-soft);
    margin-bottom:34px;
}
.article-breadcrumb a{color:var(--ink-soft);}
.article-breadcrumb a:hover{color:var(--primary-deep);}
.article-breadcrumb .sep{color:var(--accent-brass);}
.article-hero-inner{
    max-width:920px;
}
.article-cat{
    font-size:13px;
    font-weight:600;
    letter-spacing:.12em;
    color:var(--primary-deep);
    display:inline-flex;
    align-items:center;
    gap:8px;
    margin-bottom:22px;
}
.article-cat::before{
    content:"";
    width:22px;
    height:1px;
    background:var(--accent-brass);
}
.article-title{
    font-family:var(--font-serif);
    font-size:clamp(30px,5vw,48px);
    font-weight:700;
    line-height:1.28;
    color:var(--ink);
    letter-spacing:-.01em;
    margin-bottom:26px;
    max-width:860px;
}
.article-meta{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
    color:var(--ink-soft);
    font-size:14px;
}
.article-meta-item{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.article-meta-item .dot{
    width:3px;
    height:3px;
    border-radius:50%;
    background:var(--accent-brass);
}

/* 正文阅读区 */
.article-body-section{
    background:#fff;
    padding:0 0 36px;
}
.article-body-wrap{
    max-width:768px;
    margin:0 auto;
}
.article-detail-body{
    padding:56px 0 8px;
    font-size:16px;
    line-height:2;
    color:var(--ink);
    overflow-wrap:break-word;
}
.article-detail-body p{
    margin:0 0 1.6em;
    color:var(--ink);
}
.article-detail-body h2{
    font-size:30px;
    line-height:1.45;
    font-weight:700;
    margin:1.8em 0 .7em;
    color:var(--primary-deep);
    letter-spacing:-.01em;
}
.article-detail-body h3{
    font-size:22px;
    font-weight:700;
    margin:1.4em 0 .6em;
    color:var(--ink);
}
.article-detail-body a{
    color:var(--primary-deep);
    border-bottom:1px solid rgba(10,74,66,.25);
}
.article-detail-body a:hover{
    color:var(--accent-brass);
    border-color:var(--accent-brass);
}
.article-detail-body blockquote{
    margin:2em 0;
    padding:22px 30px;
    background:var(--bg-cream);
    border-left:2px solid var(--primary-deep);
    border-radius:0 8px 8px 0;
    color:var(--ink);
}
.article-detail-body blockquote p{
    font-family:var(--font-serif);
    font-size:19px;
    line-height:1.8;
    color:var(--ink);
    margin:0;
}
.article-detail-body ul,.article-detail-body ol{
    margin:1.4em 0;
    padding-left:1.2em;
}
.article-detail-body li{
    margin-bottom:.55em;
    padding-left:.35em;
}
.article-detail-body ul li{
    list-style:disc;
}
.article-detail-body ol li{
    list-style:decimal;
}
.article-detail-body ul li::marker,
.article-detail-body ol li::marker{
    color:var(--primary-deep);
}
.article-detail-body img{
    border-radius:12px;
    margin:28px 0;
}
.article-detail-body table{
    width:100%;
    border-collapse:collapse;
    margin:2em 0;
    font-size:15px;
}
.article-detail-body th,
.article-detail-body td{
    border:1px solid var(--line);
    padding:12px 14px;
    text-align:left;
}
.article-detail-body th{
    background:var(--bg-cream);
    color:var(--ink);
    font-weight:600;
}
.article-detail-body code{
    background:var(--bg-cream);
    border:1px solid var(--line);
    border-radius:5px;
    padding:2px 6px;
    font-size:14px;
    font-family:SFMono-Regular,Menlo,Consolas,monospace;
}

/* 文章底部分隔 */
.article-bottom-nav{
    border-top:1px solid var(--line);
    padding:28px 0 0;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    margin-top:28px;
}
.article-bottom-nav .simple-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--primary-deep);
    font-weight:600;
}
.article-bottom-nav .simple-link:hover{color:var(--accent-brass);}

/* 标签 */
.article-tags{
    padding:40px 0 0;
}
.article-tags .tag-label{
    color:var(--ink-soft);
    font-size:14px;
    margin-right:10px;
}
.tag-pill{
    display:inline-block;
    border:1px solid var(--line);
    border-radius:6px;
    padding:6px 14px;
    font-size:13px;
    color:var(--ink-soft);
    margin-right:8px;
    background:#fff;
}
.tag-pill::before{
    content:"";
    display:inline-block;
    width:5px;
    height:5px;
    border-radius:50%;
    background:var(--accent-brass);
    margin-right:7px;
    vertical-align:1px;
}

/* 相关推荐 */
.related-section{
    background:var(--bg-cream);
    padding:78px 0 90px;
    border-top:1px solid var(--line);
}
.section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:18px;
    margin-bottom:42px;
}
.section-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    letter-spacing:.16em;
    font-weight:700;
    color:var(--primary-deep);
    margin-bottom:12px;
}
.section-eyebrow::before{
    content:"";
    width:26px;
    height:1px;
    background:var(--accent-brass);
}
.section-title{
    font-family:var(--font-serif);
    font-size:clamp(28px,3.4vw,40px);
    font-weight:700;
    line-height:1.3;
    color:var(--ink);
}
.related-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
}
.related-card{
    background:var(--bg-white);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    display:flex;
    flex-direction:column;
    transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.related-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-lift);
    border-color:rgba(10,74,66,.16);
}
.related-card-image{
    display:block;
    aspect-ratio:16/9;
    overflow:hidden;
    background:#dfe5dc;
    position:relative;
}
.related-card-image img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.related-card:hover .related-card-image img{
    transform:scale(1.04);
}
.related-card-content{
    padding:28px;
    display:flex;
    flex-direction:column;
    flex:1;
}
.related-card-label{
    font-size:12px;
    letter-spacing:.1em;
    color:var(--accent-brass);
    font-weight:600;
    text-transform:none;
    margin-bottom:8px;
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.related-card-label::before{
    content:"";
    width:5px;
    height:5px;
    border-radius:50%;
    background:var(--accent-brass);
}
.related-card-content h3{
    font-size:21px;
    line-height:1.5;
    font-weight:650;
    color:var(--ink);
    margin-bottom:14px;
}
.related-card-content h3 a:hover{color:var(--primary-deep);}
.related-card-content p{
    font-size:14px;
    line-height:1.85;
    color:var(--ink-soft);
    margin-bottom:20px;
    display:-webkit-box;
    -webkit-line-clamp:3;
    -webkit-box-orient:vertical;
    overflow:hidden;
}

/* CTA 横幅 */
.cta-section{
    background:var(--bg-white);
    padding:90px 0;
}
.cta-card{
    position:relative;
    background:linear-gradient(100deg,rgba(6,50,43,.96) 0%,rgba(10,74,66,.82) 70%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-radius:20px;
    overflow:hidden;
    padding:clamp(40px,6vw,76px);
    color:#fff;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:40px;
    min-height:280px;
}
.cta-copy{
    flex:1 1 360px;
}
.cta-eyebrow{
    font-size:13px;
    letter-spacing:.12em;
    color:rgba(255,255,255,.64);
    font-weight:600;
    margin-bottom:14px;
    display:inline-flex;
    align-items:center;
    gap:10px;
}
.cta-eyebrow::before{
    content:"";
    width:24px;
    height:1px;
    background:var(--accent-brass);
}
.cta-card h2{
    color:#fff;
    font-family:var(--font-serif);
    font-size:clamp(27px,3.6vw,40px);
    line-height:1.4;
    margin-bottom:18px;
    max-width:580px;
}
.cta-card p{
    color:rgba(255,255,255,.72);
    font-size:16px;
    line-height:1.9;
    max-width:540px;
}
.cta-actions{
    flex:0 0 auto;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
}

/* 内容未找到 */
.missing-state{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:center;
    background:var(--bg-cream);
    border-bottom:1px solid var(--line);
    min-height:46vh;
    text-align:center;
}
.missing-state .inner{
    max-width:440px;
}
.missing-state h1{
    font-family:var(--font-serif);
    font-size:42px;
    color:var(--ink);
    margin-bottom:18px;
}
.missing-state p{
    color:var(--ink-soft);
    margin-bottom:30px;
}

/* 页脚 */
.site-footer{
    background:var(--bg-footer);
    color:rgba(255,255,255,.72);
    padding:72px 0 30px;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.2fr 0.8fr 0.9fr 1fr;
    gap:clamp(24px,4vw,56px);
    padding-bottom:48px;
    border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .footer-logo{
    color:#fff;
    font-size:34px;
    margin-bottom:18px;
    display:inline-flex;
}
.footer-brand .logo-cn{
    color:rgba(255,255,255,.9);
    margin-left:7px;
    font-size:16px;
}
.footer-brand p{
    color:rgba(255,255,255,.68);
    font-size:15px;
    line-height:1.9;
    max-width:360px;
    margin-bottom:16px;
}
.footer-note{
    font-size:14px;
    line-height:1.85;
    color:rgba(255,255,255,.48);
    border-left:1px solid rgba(255,255,255,.2);
    padding-left:16px;
}
.footer-col h4{
    color:#fff;
    font-size:16px;
    font-weight:600;
    margin-bottom:20px;
    letter-spacing:.02em;
}
.footer-col a{
    display:block;
    color:rgba(255,255,255,.55);
    font-size:14px;
    line-height:2.1;
    margin-bottom:6px;
}
.footer-col a:hover{
    color:var(--accent-brass);
}
.footer-contact p{
    font-size:14px;
    color:rgba(255,255,255,.5);
    line-height:1.8;
    margin-bottom:8px;
}
.footer-bottom{
    padding-top:28px;
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:10px;
    font-size:13px;
    color:rgba(255,255,255,.4);
}
.footer-bottom span{
    white-space:nowrap;
}

/* 响应式 */
@media (max-width: 1100px){
    .related-grid{
        grid-template-columns:repeat(3,1fr);
        gap:16px;
    }
    .related-card-content{
        padding:20px;
    }
    .related-card-content h3{
        font-size:18px;
    }
}

@media (max-width: 900px){
    .main-nav{
        display:none;
    }
    .header-cta{
        display:none;
    }
    .nav-toggle{
        display:flex;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }
    .footer-brand{
        grid-column:1 / -1;
    }
}

@media (max-width: 768px){
    .article-hero{
        padding:48px 0 46px;
    }
    .article-detail-body{
        font-size:15px;
        padding-top:36px;
    }
    .article-detail-body h2{
        font-size:24px;
    }
    .related-grid{
        grid-template-columns:1fr;
        max-width:520px;
        margin-left:auto;
        margin-right:auto;
    }
    .cta-card{
        flex-direction:column;
        align-items:flex-start;
    }
    .cta-actions{
        width:100%;
    }
}

@media (max-width: 600px){
    .header-inner{
        min-height:70px;
    }
    .brand{
        font-size:28px;
    }
    .site-footer{
        padding-top:52px;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
    .footer-brand{
        grid-column:auto;
    }
    .article-bottom-nav{
        flex-direction:column;
        align-items:flex-start;
    }
    .cta-card{
        padding:34px 26px;
    }
    .article-detail-body blockquote{
        padding:18px 18px;
    }
}

@media (min-width: 901px){
    .mobile-drawer{
        display:none;
    }
}

@media (max-width: 520px){
    .container{
        padding-left:20px;
        padding-right:20px;
    }
    .article-title{
        font-size:28px;
    }
    .section-title{
        font-size:26px;
    }
    .cta-card h2{
        font-size:26px;
    }
}

/* roulang page: category1 */
:root {
            --primary-deep: #0A4A42;
            --primary-mid: #116457;
            --accent-brass: #B67A44;
            --ink: #1A2622;
            --ink-soft: #5D665F;
            --bg-cream: #F7F5F0;
            --bg-white: #FFFFFF;
            --line: #E4E0D7;
            --danger: #AF443A;
            --success: #2E6B5C;
            --radius: 8px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(20, 40, 35, .06);
            --shadow-md: 0 12px 32px rgba(20, 40, 35, .10);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--ink);
            background: var(--bg-cream);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        textarea {
            font: inherit;
            border: none;
            background: none;
        }

        h1,
        h2,
        h3 {
            line-height: 1.3;
            font-weight: 700;
        }

        .container {
            max-width: 1280px;
            margin-inline: auto;
            padding-inline: 48px;
        }

        .section {
            padding: 76px 0;
        }

        .section-cream {
            background: var(--bg-cream);
        }

        .section-white {
            background: var(--bg-white);
        }

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

        .eyebrow {
            font-size: 12px;
            letter-spacing: .16em;
            color: var(--accent-brass);
            font-weight: 600;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .eyebrow::before {
            content: "";
            width: 22px;
            height: 1px;
            background: var(--accent-brass);
            opacity: .7;
        }

        .sec-title {
            font-family: var(--font-serif);
            font-size: clamp(27px, 3.2vw, 38px);
            font-weight: 700;
            letter-spacing: .01em;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .sec-desc {
            max-width: 660px;
            color: var(--ink-soft);
            font-size: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 500;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            letter-spacing: .02em;
        }

        .btn-primary {
            background: var(--primary-deep);
            color: #fff;
            border-color: var(--primary-deep);
        }

        .btn-primary:hover {
            background: var(--primary-mid);
            border-color: var(--primary-mid);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(10, 74, 66, .18);
        }

        .btn-outline {
            background: var(--bg-white);
            color: var(--primary-deep);
            border-color: var(--line);
        }

        .btn-outline:hover {
            border-color: var(--primary-deep);
            color: var(--primary-deep);
            transform: translateY(-2px);
        }

        .btn-white {
            background: #ffffff;
            color: var(--primary-deep);
        }

        .btn-white:hover {
            background: #f4f1e8;
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .55);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
        }

        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-brass);
            outline-offset: 3px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            color: var(--primary-deep);
            border-bottom: 1px solid transparent;
            transition: color .2s;
        }

        .text-link span {
            transition: transform .2s;
        }

        .text-link:hover {
            color: var(--accent-brass);
        }

        .text-link:hover span {
            transform: translateX(4px);
        }

        /* --------- header --------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .86);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            min-height: 78px;
            gap: 36px;
        }

        .brand {
            display: inline-flex;
            align-items: baseline;
            gap: 0;
            flex-shrink: 0;
        }

        .brand .logo-word {
            font-family: var(--font-serif);
            font-size: 1.45rem;
            font-weight: 600;
            letter-spacing: -.02em;
            color: var(--primary-deep);
        }

        .brand i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-brass);
            margin: 0 4px;
            align-self: center;
        }

        .brand .logo-cn {
            font-size: .82rem;
            font-weight: 500;
            color: var(--ink-soft);
            letter-spacing: .06em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            margin-inline: auto;
        }

        .nav-link {
            position: relative;
            font-size: .9rem;
            padding: 10px 0 8px;
            color: var(--ink-soft);
            transition: color .2s;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-brass);
            transition: width .28s ease;
        }

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

        .nav-link:hover::after {
            width: 100%;
        }

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

        .nav-link.is-active::after {
            width: 100%;
            background: var(--accent-brass);
        }

        .nav-cta {
            padding: 10px 20px;
            flex-shrink: 0;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            position: relative;
            z-index: 130;
            border-radius: 6px;
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 1.6px;
            margin: 6px auto;
            background: var(--ink);
            transition: transform .3s, opacity .3s;
        }

        body.nav-open .menu-toggle span:nth-child(1) {
            transform: translateY(7.6px) rotate(45deg);
        }

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

        body.nav-open .menu-toggle span:nth-child(3) {
            transform: translateY(-7.6px) rotate(-45deg);
        }

        .mobile-panel {
            display: none;
        }

        @media (max-width: 1023px) {
            .container {
                padding-inline: 30px;
            }

            .site-header .header-inner {
                min-height: 68px;
                gap: 12px;
                justify-content: space-between;
            }

            .main-nav,
            .nav-cta {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .mobile-panel {
                display: block;
                position: fixed;
                inset: 0;
                z-index: 120;
                background: #FBF9F4;
                transform: translateX(100%);
                transition: transform .4s cubic-bezier(.4, 0, .2, 1);
                visibility: hidden;
            }

            body.nav-open .mobile-panel {
                transform: translateX(0);
                visibility: visible;
            }

            body.nav-open {
                overflow: hidden;
            }

            .mobile-panel-inner {
                display: flex;
                flex-direction: column;
                justify-content: center;
                height: 100%;
                padding: 84px 36px 40px;
                gap: 6px;
            }

            .mobile-nav-link {
                display: flex;
                align-items: center;
                gap: 10px;
                padding: 18px 4px;
                font-size: 22px;
                font-weight: 500;
                color: var(--ink);
                border-bottom: 1px solid var(--line);
            }

            .mobile-nav-link.is-active {
                color: var(--primary-deep);
                font-weight: 700;
            }

            .mobile-nav-link.is-active::before {
                content: "";
                width: 7px;
                height: 7px;
                border-radius: 50%;
                background: var(--accent-brass);
                flex-shrink: 0;
            }

            .mobile-cta {
                margin-top: 24px;
                text-align: center;
            }
        }

        /* --------- footer --------- */
        .site-footer {
            background: #0A3A33;
            color: rgba(255, 255, 255, .88);
            padding: 60px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 5fr 1.4fr 2fr 2.4fr;
            gap: 44px;
            padding-bottom: 48px;
        }

        .site-footer .footer-brand .brand .logo-word {
            color: #fff;
        }

        .site-footer .footer-brand .brand .logo-cn {
            color: rgba(255, 255, 255, .74);
        }

        .site-footer .footer-brand p {
            margin-top: 18px;
            color: rgba(255, 255, 255, .68);
            max-width: 440px;
            font-size: 14px;
            line-height: 1.9;
        }

        .site-footer .footer-note {
            margin-top: 18px;
            color: rgba(255, 255, 255, .48);
            font-size: 13px;
            border-left: 2px solid var(--accent-brass);
            padding-left: 14px;
            max-width: 420px;
        }

        .site-footer .footer-col {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .site-footer .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .site-footer .footer-col a {
            color: rgba(255, 255, 255, .62);
            transition: color .2s;
        }

        .site-footer .footer-col a:hover {
            color: #fff;
        }

        .site-footer .footer-contact p {
            color: rgba(255, 255, 255, .62);
            line-height: 1.8;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .14);
            padding: 16px 0;
        }

        .site-footer .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            color: rgba(255, 255, 255, .42);
            font-size: 13px;
            flex-wrap: wrap;
        }

        @media (max-width: 1023px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .site-footer .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 600px) {
            .container {
                padding-inline: 20px;
            }

            .section {
                padding: 64px 0;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* --------- category hero --------- */
        .category-hero {
            padding: 90px 0 70px;
            background: linear-gradient(180deg,
                    #FBF9F4,
                    var(--bg-cream));
            border-bottom: 1px solid var(--line);
        }

        .crumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--ink-soft);
            margin-bottom: 18px;
        }

        .crumbs a {
            transition: color .2s;
        }

        .crumbs a:hover {
            color: var(--primary-deep);
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(31px, 4vw, 52px);
            line-height: 1.24;
            font-weight: 700;
            color: var(--primary-deep);
            letter-spacing: .01em;
            margin-bottom: 20px;
        }

        .category-hero h1 .hero-dot {
            color: var(--accent-brass);
            font-style: normal;
        }

        .category-hero .lead {
            font-size: 16px;
            line-height: 2;
            color: var(--ink-soft);
            max-width: 570px;
            margin-bottom: 26px;
        }

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

        .hero-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            min-height: 280px;
        }

        .hero-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .hero-badge {
            position: absolute;
            top: 18px;
            left: 18px;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(6px);
            color: var(--primary-deep);
            border-radius: 40px;
            padding: 7px 15px;
            font-size: 12px;
            letter-spacing: .06em;
            font-weight: 600;
        }

        @media (max-width: 1023px) {
            .category-hero {
                padding: 60px 0 48px;
            }

            .hero-copy {
                max-width: 680px;
            }

            .hero-media {
                margin-top: 32px;
            }

            .hero-media img {
                min-height: 260px;
            }
        }

        /* --------- editorial intro --------- */
        .editorial-intro {
            background: var(--bg-white);
        }

        .quote-highlight {
            margin-top: 34px;
            padding: 22px 24px;
            border-left: 2px solid var(--accent-brass);
            font-family: var(--font-serif);
            font-size: 18px;
            color: var(--primary-deep);
            background: rgba(247, 245, 240, .7);
            border-radius: 0 8px 8px 0;
            line-height: 1.7;
        }

        .editorial-copy p+p {
            margin-top: 22px;
        }

        .editorial-copy p {
            font-size: 16px;
            line-height: 2;
            color: #2A3530;
        }

        /* --------- featured asymmetric --------- */
        .featured-asym {
            display: grid;
            grid-template-columns: 1.44fr 1fr;
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
        }

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

        .feature-card .card-media {
            overflow: hidden;
        }

        .feature-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .feature-card:hover .card-media img {
            transform: scale(1.04);
        }

        .feature-main .card-media img {
            min-height: 300px;
        }

        .feature-side {
            display: grid;
            gap: 28px;
        }

        .feature-side .card-media img {
            min-height: 158px;
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent-brass);
            border: 1px solid var(--line);
            border-radius: 40px;
            padding: 4px 12px;
            letter-spacing: .05em;
            font-weight: 600;
        }

        .card-tag::before {
            content: "";
            width: 5px;
            height: 5px;
            background: var(--accent-brass);
            border-radius: 50%;
        }

        .feature-card .card-body {
            padding: 22px 22px 24px;
        }

        .feature-card h3 {
            font-size: 20px;
            margin: 14px 0 10px;
            color: var(--ink);
        }

        .feature-card p {
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.85;
            margin-bottom: 16px;
        }

        @media (max-width: 900px) {
            .featured-asym {
                grid-template-columns: 1fr;
            }

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

        /* --------- service list rows --------- */
        .service-list {
            list-style: none;
        }

        .service-list li {
            display: grid;
            grid-template-columns: 72px 1fr 1.4fr;
            gap: 26px;
            align-items: center;
            padding: 30px 4px;
            border-bottom: 1px solid var(--line);
            transition: background .2s;
        }

        .service-list li:first-child {
            border-top: 1px solid var(--line);
        }

        .service-list li:hover {
            background: rgba(247, 245, 240, .5);
            padding-left: 10px;
        }

        .service-list .num {
            font-family: var(--font-serif);
            color: var(--accent-brass);
            font-size: 20px;
            font-weight: 600;
        }

        .service-list h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .service-list p {
            color: var(--ink-soft);
            font-size: 14px;
            line-height: 1.9;
        }

        @media (max-width: 760px) {
            .service-list li {
                grid-template-columns: 44px 1fr;
                gap: 12px;
            }

            .service-list li>p {
                grid-column: 2;
            }
        }

        /* --------- process --------- */
        .process-list {
            list-style: none;
        }

        .process-list li {
            display: grid;
            grid-template-columns: 88px 1fr;
            gap: 26px;
            padding: 28px 4px 30px;
            border-bottom: 1px dashed var(--line);
        }

        .process-list .step-no {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 600;
            color: var(--accent-brass);
            line-height: 1.2;
        }

        .process-list h3 {
            font-size: 19px;
            margin-bottom: 6px;
        }

        .process-list p {
            max-width: 660px;
            color: var(--ink-soft);
            font-size: 15px;
            line-height: 1.95;
        }

        @media (max-width: 600px) {
            .process-list li {
                grid-template-columns: 56px 1fr;
            }
        }

        /* --------- format tags --------- */
        .format-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            list-style: none;
        }

        .format-list li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            border: 1px solid var(--line);
            border-radius: 6px;
            background: var(--bg-white);
            color: var(--ink);
            font-size: 14px;
            transition: border-color .2s, color .2s;
        }

        .format-list li::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-brass);
            flex-shrink: 0;
        }

        .format-list li:hover {
            border-color: var(--primary-deep);
            color: var(--primary-deep);
        }

        /* --------- faq --------- */
        .faq-wrap {
            max-width: 900px;
        }

        .faq-list {
            border-top: 1px solid var(--line);
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 25px 4px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
        }

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

        .faq-item summary .q-num {
            font-family: var(--font-serif);
            color: var(--accent-brass);
            font-weight: 600;
            font-size: 17px;
            flex-shrink: 0;
        }

        .faq-item summary .plus {
            margin-left: auto;
            font-size: 22px;
            font-weight: 300;
            color: var(--primary-deep);
            transition: transform .3s;
            flex-shrink: 0;
            line-height: 1;
        }

        .faq-item[open] summary {
            color: var(--primary-deep);
        }

        .faq-item[open] summary .plus {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 0 28px 54px;
            max-width: 760px;
            color: var(--ink-soft);
            font-size: 15px;
            line-height: 2;
        }

        @media (max-width: 600px) {
            .faq-answer {
                padding-left: 0;
            }
        }

        /* --------- category switch --------- */
        .cat-switch {
            display: flex;
            align-items: stretch;
            gap: 28px;
        }

        .cat-switch a {
            flex: 1;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            background: var(--bg-white);
            transition: border-color .25s, box-shadow .25s, transform .25s;
        }

        .cat-switch a:hover {
            border-color: var(--primary-deep);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .cat-switch .label {
            font-size: 12px;
            color: var(--accent-brass);
            letter-spacing: .08em;
            font-weight: 600;
        }

        .cat-switch .name {
            font-size: 20px;
            font-weight: 600;
            color: var(--ink);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cat-switch .name span {
            margin-left: auto;
            transition: transform .25s;
        }

        .cat-switch a:hover .name span {
            transform: translateX(5px);
        }

        @media (max-width: 700px) {
            .cat-switch {
                flex-direction: column;
            }
        }

        /* --------- CTA --------- */
        .cta-band {
            padding: 72px 0;
        }

        .cta-panel {
            background: linear-gradient(118deg,
                    rgba(8, 65, 57, .97),
                    rgba(10, 74, 66, .88)),
                url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
            background-color: var(--primary-deep);
            border-radius: 16px;
            padding: clamp(32px, 5vw, 58px);
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 52px;
            color: #fff;
        }

        .cta-copy h2 {
            font-family: var(--font-serif);
            font-size: clamp(25px, 3vw, 36px);
            line-height: 1.35;
            margin-bottom: 18px;
            color: #fff;
        }

        .cta-copy p {
            color: rgba(255, 255, 255, .78);
            font-size: 15px;
            line-height: 1.95;
            margin-bottom: 26px;
        }

        .cta-points {
            list-style: none;
            display: grid;
            gap: 10px;
            margin-top: 24px;
        }

        .cta-points li {
            color: rgba(255, 255, 255, .82);
            font-size: 14px;
            padding-left: 18px;
            position: relative;
        }

        .cta-points li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 11px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-brass);
        }

        .cta-form {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 12px;
            padding: 24px;
            backdrop-filter: blur(4px);
        }

        .cta-form label {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, .86);
            margin-bottom: 7px;
        }

        .cta-form input,
        .cta-form textarea {
            width: 100%;
            background: rgba(255, 255, 255, .92);
            border: 1px solid transparent;
            border-radius: 6px;
            padding: 12px 14px;
            color: var(--ink);
            font-size: 15px;
            transition: border-color .2s, box-shadow .2s;
        }

        .cta-form input:focus,
        .cta-form textarea:focus {
            outline: none;
            border-color: var(--primary-mid);
            box-shadow: 0 0 0 3px rgba(10, 74, 66, .18);
        }

        .cta-form textarea {
            min-height: 98px;
            resize: vertical;
        }

        .cta-form .field {
            margin-bottom: 16px;
        }

        .cta-form .form-feedback {
            color: #D9F2E8;
            font-size: 14px;
            margin-top: 14px;
        }

        @media (max-width: 980px) {
            .cta-panel {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        img,
        a {
            -webkit-tap-highlight-color: transparent;
        }

        .scroll-target {
            scroll-margin-top: 100px;
        }

/* roulang page: category2 */
:root{
    --primary-deep:#0A4A42;
    --primary-mid:#116457;
    --accent-brass:#B67A44;
    --ink:#1A2622;
    --ink-soft:#5D665F;
    --bg-cream:#F7F5F0;
    --bg-white:#FFFFFF;
    --line:#E4E0D7;
    --success:#2E6B5C;
    --danger:#AF443A;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    color:var(--ink);
    background:var(--bg-white);
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{text-decoration:none;color:inherit;transition:color .25s ease;}
  ul,ol{list-style:none;}
  button,input,textarea{font-family:inherit;}
  .container{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
  }
  @media(min-width:768px){
    .container{padding-left:40px;padding-right:40px;}
  }
  @media(min-width:1024px){
    .container{padding-left:56px;padding-right:56px;}
  }

  /* ------- header / nav ------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    height:76px;
    display:flex;
    align-items:center;
    justify-content:space-between;
  }
  .brand{
    display:inline-flex;
    align-items:baseline;
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    font-size:24px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.01em;
  }
  .brand i{
    width:5px;height:5px;
    background:var(--primary-deep);
    border-radius:50%;
    display:inline-block;
    margin:0 3px;
    transform:translateY(-2px);
  }
  .brand .logo-cn{
    font-size:16px;
    font-weight:600;
    margin-left:2px;
  }
  .main-nav{
    display:none;
    align-items:center;
    gap:12px;
  }
  @media(min-width:1024px){
    .main-nav{display:flex;gap:28px;}
  }
  .main-nav a{
    font-size:15px;
    color:var(--ink-soft);
    position:relative;
    padding:6px 2px;
    letter-spacing:.02em;
  }
  .main-nav a:hover{color:var(--primary-deep);}
  .main-nav a.is-active{color:var(--primary-deep);font-weight:600;}
  .main-nav a.is-active::after{
    content:'';
    position:absolute;
    left:50%;
    transform:translateX(-50%);
    bottom:0;
    width:5px;height:5px;
    border-radius:50%;
    background:var(--accent-brass);
  }
  .header-cta{
    display:none;
    align-items:center;
    gap:12px;
    margin-left:12px;
  }
  @media(min-width:1280px){
    .header-cta{display:flex;}
  }
  .header-cta .contact-btn{
    background:var(--primary-deep);
    color:#fff;
    font-size:14px;
    padding:9px 22px;
    border-radius:6px;
    font-weight:500;
    transition:background .3s ease, transform .3s ease, box-shadow .3s ease;
  }
  .header-cta .contact-btn:hover{
    background:#06362F;
    transform:translateY(-2px);
    box-shadow:0 8px 18px rgba(10,74,66,.18);
  }
  .mobile-burger{
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:6px;
    width:44px;height:44px;
    background:transparent;
    border:none;
    cursor:pointer;
    align-items:center;
  }
  @media(min-width:1024px){
    .mobile-burger{display:none;}
  }
  .mobile-burger span{
    display:block;
    width:22px;height:2px;
    background:var(--ink);
    transition:all .3s ease;
  }
  .mobile-burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
  .mobile-burger.open span:nth-child(2){opacity:0;}
  .mobile-burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

  .mobile-menu{
    position:fixed;
    top:76px;
    left:0;
    right:0;
    bottom:0;
    background:var(--bg-cream);
    z-index:55;
    padding:38px 28px 48px;
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .4s ease, transform .4s ease, visibility .4s;
  }
  .mobile-menu.open{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .mobile-menu a{
    display:block;
    font-size:22px;
    font-weight:500;
    color:var(--ink);
    padding:16px 0;
    border-bottom:1px solid var(--line);
    letter-spacing:.02em;
  }
  .mobile-menu a:hover{color:var(--primary-deep);}
  .mobile-menu a.is-active{
    color:var(--primary-deep);
    font-weight:600;
    padding-left:12px;
    border-left:3px solid var(--accent-brass);
  }
  .mobile-menu .mobile-contact{
    display:inline-block;
    margin-top:28px;
    background:var(--primary-deep);
    color:#fff;
    font-size:15px;
    padding:12px 30px;
    border-radius:6px;
  }

  /* ------- buttons ------- */
  .btn-primary{
    display:inline-block;
    background:var(--primary-deep);
    color:#fff;
    font-size:15px;
    font-weight:500;
    padding:13px 32px;
    border-radius:6px;
    border:none;
    cursor:pointer;
    transition:background .3s ease, transform .3s ease, box-shadow .3s ease;
    letter-spacing:.02em;
    line-height:1.4;
  }
  .btn-primary:hover{
    background:#06362F;
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(10,74,66,.2);
  }
  .btn-primary:focus-visible{
    outline:2px solid var(--accent-brass);
    outline-offset:3px;
  }
  .btn-outline{
    display:inline-block;
    border:1px solid var(--line);
    color:var(--ink);
    background:transparent;
    font-size:15px;
    padding:12px 30px;
    border-radius:6px;
    cursor:pointer;
    transition:all .3s ease;
    text-align:center;
  }
  .btn-outline:hover{
    border-color:var(--primary-deep);
    color:var(--primary-deep);
  }
  .btn-outline:focus-visible{
    outline:2px solid var(--accent-brass);
    outline-offset:3px;
  }
  .btn-white-outline{
    display:inline-block;
    border:1px solid rgba(255,255,255,.7);
    color:#fff;
    background:transparent;
    font-size:15px;
    padding:12px 30px;
    border-radius:6px;
    cursor:pointer;
    transition:all .3s ease;
  }
  .btn-white-outline:hover{
    border-color:#fff;
    background:rgba(255,255,255,.12);
  }

  .arrow-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--primary-deep);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    transition:gap .3s ease;
  }
  .arrow-link .arrow{
    transition:transform .3s ease,color .3s ease;
  }
  .arrow-link:hover .arrow{
    transform:translateX(4px);
    color:var(--accent-brass);
  }
  .arrow-link.in-light{
    color:var(--bg-cream);
  }
  .arrow-link.in-light .arrow{
    transition:transform .3s ease,color .3s ease;
  }
  .arrow-link.in-light:hover .arrow{
    transform:translateX(4px);
    color:#ECD3BA;
  }

  /* ------- eyebrow / 眉题 ------- */
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    letter-spacing:.12em;
    color:var(--accent-brass);
    font-weight:600;
    text-transform:uppercase;
    position:relative;
  }
  .eyebrow::before{
    content:'';
    width:22px;
    height:1px;
    background:var(--accent-brass);
    display:inline-block;
  }
  .eyebrow.right-line::after{
    content:'';
    width:22px;
    height:1px;
    background:var(--accent-brass);
    display:inline-block;
  }
  .eyebrow.in-light{
    color:#D9B48F;
  }
  .eyebrow.in-light::before{
    background:#D9B48F;
  }

  .section-title{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    font-size:clamp(26px, 3vw, 40px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:.01em;
    color:var(--ink);
  }
  .section-subtitle{
    font-size:16px;
    line-height:1.85;
    color:var(--ink-soft);
    margin-top:16px;
  }

  /* ------- hero 分类 ------- */
  .category-hero{
    position:relative;
    padding:80px 0 64px;
    background:linear-gradient(135deg,#0A463E 0%,#0D5A50 55%,#0A4A42 100%);
    color:#fff;
    overflow:hidden;
  }
  .category-hero::before{
    content:'';
    position:absolute;
    top:0;right:0;left:0;bottom:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
    mix-blend-mode:luminosity;
  }
  .category-hero::after{
    content:'';
    position:absolute;
    top:0;right:0;left:0;bottom:0;
    background:linear-gradient(105deg,rgba(8,51,46,.82) 0%,rgba(8,51,46,.45) 60%,rgba(8,51,46,.2) 100%);
  }
  .category-hero .hero-content{
    position:relative;
    z-index:2;
    max-width:900px;
  }
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:13px;
    color:rgba(255,255,255,.7);
    letter-spacing:.06em;
    margin-bottom:24px;
  }
  .breadcrumb a{color:rgba(255,255,255,.7);}
  .breadcrumb a:hover{color:#fff;}
  .breadcrumb span{color:#D9B48F;}
  .category-hero h1{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    font-size:clamp(32px,4vw,52px);
    font-weight:700;
    line-height:1.15;
    margin:12px 0 20px;
  }
  .category-hero .category-desc{
    font-size:16px;
    line-height:1.9;
    color:rgba(255,255,255,.88);
    max-width:720px;
    margin-bottom:36px;
  }
  .category-hero .hero-meta{
    display:flex;
    flex-wrap:wrap;
    gap:30px;
    border-top:1px solid rgba(255,255,255,.16);
    padding-top:22px;
  }
  .hero-meta .meta-item{
    text-align:left;
  }
  .hero-meta .meta-item .number{
    font-size:28px;
    font-weight:700;
    font-family:"Noto Serif SC",serif;
    display:block;
    color:#fff;
    letter-spacing:.02em;
  }
  .hero-meta .meta-item .label{
    font-size:13px;
    color:rgba(255,255,255,.62);
    margin-top:4px;
    letter-spacing:.06em;
  }

  /* ------- 段落 ------- */
  .cat-block{
    padding:96px 0;
  }
  .cat-block.alt-bg{
    background:var(--bg-cream);
  }
  .split-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:52px;
  }
  @media(min-width:992px){
    .split-grid{
      grid-template-columns:420px 1fr;
      gap:72px;
      align-items:start;
    }
  }
  .split-left{
    position:sticky;
    top:120px;
    align-self:start;
  }
  .split-left .section-title{
    margin-top:18px;
  }
  .split-left .left-letter{
    width:52px;height:52px;
    display:flex;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    border-radius:50%;
    font-family:"Noto Serif SC",serif;
    color:var(--accent-brass);
    font-weight:600;
    font-size:20px;
  }
  .split-right{
    max-width:720px;
  }
  .split-right p{
    font-size:16px;
    line-height:1.95;
    color:var(--ink-soft);
    margin-bottom:20px;
  }
  .split-right p strong{
    color:var(--ink);
    font-weight:600;
  }

  /* ------- 数字能力列表 ------- */
  .capability-list{
    margin-top:8px;
  }
  .capability-list-item{
    padding:20px 0;
    border-bottom:1px solid var(--line);
    display:grid;
    grid-template-columns:44px 1fr;
    gap:18px;
    transition:background .3s ease;
  }
  .capability-list-item:first-child{
    border-top:1px solid var(--line);
  }
  .capability-list-item .index{
    font-family:"Noto Serif SC",serif;
    font-size:20px;
    font-weight:600;
    color:var(--accent-brass);
    line-height:1.4;
  }
  .capability-list-item h3{
    font-size:18px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:6px;
    letter-spacing:.01em;
  }
  .capability-list-item p{
    font-size:14px;
    color:var(--ink-soft);
    line-height:1.8;
  }

  @media(min-width:768px){
    .capability-list-item{
      grid-template-columns:64px 1fr;
    }
  }

  /* ------- 应用场景 ------- */
  .scenario-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
    margin-top:42px;
  }
  @media(min-width:600px){
    .scenario-grid{
      grid-template-columns:repeat(2,1fr);
    }
  }
  @media(min-width:1024px){
    .scenario-grid{
      grid-template-columns:repeat(2,1fr);
      gap:28px;
    }
  }
  .scenario-card{
    background:var(--bg-white);
    border:1px solid var(--line);
    border-radius:10px;
    padding:34px 32px 28px;
    transition:box-shadow .4s ease,transform .4s ease;
    position:relative;
  }
  .scenario-card:hover{
    box-shadow:0 14px 34px rgba(20,40,35,.08);
    transform:translateY(-3px);
  }
  .scenario-card .sc-icon{
    color:var(--primary-deep);
    font-size:26px;
    margin-bottom:18px;
    opacity:0.85;
  }
  .scenario-card .series{
    font-size:12px;
    letter-spacing:.14em;
    color:var(--accent-brass);
    font-weight:600;
    margin-bottom:8px;
  }
  .scenario-card h3{
    font-size:19px;
    color:var(--ink);
    font-weight:600;
    margin-bottom:10px;
  }
  .scenario-card p{
    font-size:14px;
    color:var(--ink-soft);
    line-height:1.8;
    margin-bottom:0;
  }

  /* ------- 流程 ------- */
  .process-block{
    position:relative;
  }
  .process-step{
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
    padding:30px 0;
    border-bottom:1px solid var(--line);
  }
  @media(min-width:768px){
    .process-step{
      grid-template-columns:120px 1fr;
      gap:28px;
      padding:34px 0;
    }
  }
  .process-step:first-child{
    border-top:1px solid var(--line);
  }
  .process-step .step-no{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:42px;
    color:var(--line);
    font-weight:700;
    line-height:1;
    letter-spacing:.01em;
  }
  .process-step .step-body h3{
    font-size:20px;
    color:var(--ink);
    font-weight:600;
    margin-bottom:8px;
  }
  .process-step .step-body p{
    font-size:15px;
    color:var(--ink-soft);
    line-height:1.85;
    max-width:680px;
  }
  .process-step .step-bar{
    width:42px;
    height:2px;
    background:var(--accent-brass);
    margin-top:12px;
  }

  /* ------- FAQ 手风琴 ------- */
  .faq-wrap{
    max-width:860px;
    margin:40px auto 0;
  }
  .faq-item{
    border-bottom:1px solid var(--line);
  }
  .faq-item:first-child{
    border-top:1px solid var(--line);
  }
  .faq-question{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:24px 4px;
    background:transparent;
    border:none;
    text-align:left;
    cursor:pointer;
    transition:padding .3s ease;
  }
  .faq-question .q-left{
    display:flex;
    align-items:center;
    gap:18px;
  }
  .faq-question .q-index{
    font-family:"Noto Serif SC",serif;
    color:var(--accent-brass);
    font-size:14px;
    font-weight:600;
    min-width:28px;
    letter-spacing:.08em;
  }
  .faq-question .q-text{
    font-size:16px;
    font-weight:500;
    color:var(--ink);
    transition:color .3s ease;
    line-height:1.6;
  }
  .faq-question .q-toggle{
    width:24px;
    height:24px;
    position:relative;
    flex-shrink:0;
  }
  .faq-question .q-toggle::before,
  .faq-question .q-toggle::after{
    content:'';
    position:absolute;
    background:var(--ink-soft);
    transition:all .3s ease;
  }
  .faq-question .q-toggle::before{
    width:14px;height:1.5px;
    top:11px;left:5px;
  }
  .faq-question .q-toggle::after{
    width:1.5px;height:14px;
    top:5px;left:11px;
  }
  .faq-item.active .faq-question .q-toggle::before{
    background:var(--accent-brass);
  }
  .faq-item.active .faq-question .q-toggle::after{
    transform:scaleY(0);
    background:var(--accent-brass);
  }
  .faq-item.active .faq-question .q-text{
    color:var(--primary-deep);
  }
  .faq-answer{
    max-height:0;
    overflow:hidden;
    transition:max-height .45s ease;
    padding:0 30px 0 68px;
  }
  .faq-answer-inner{
    padding:0 0 24px;
    font-size:15px;
    line-height:1.9;
    color:var(--ink-soft);
    max-width:680px;
  }
  .faq-answer-inner strong{
    color:var(--ink);
  }
  .faq-item.active .faq-answer{
    max-height:500px;
  }

  .faq-side-note{
    font-size:13px;
    color:var(--ink-soft);
    text-align:center;
    margin-top:28px;
  }

  /* ------- 相邻分类跳转 ------- */
  .cat-switch{
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:24px 0;
    margin-top:10px;
  }
  .cat-switch .switch-inner{
    display:flex;
    flex-direction:column;
    gap:12px;
    justify-content:space-between;
    align-items:flex-start;
  }
  @media(min-width:768px){
    .cat-switch .switch-inner{
      flex-direction:row;
      align-items:center;
    }
  }
  .cat-switch .switch-item{
    display:flex;
    align-items:center;
    gap:20px;
    flex:1;
  }
  .cat-switch .switch-item.prev{
    justify-content:space-between;
  }
  @media(min-width:768px){
    .cat-switch .switch-item.prev{
      border-right:1px solid var(--line);
      justify-content:flex-start;
      gap:24px;
      margin-right:28px;
      padding-right:28px;
    }
  }
  .cat-switch .dir-label{
    font-size:12px;
    letter-spacing:.14em;
    color:var(--accent-brass);
    font-weight:600;
    display:block;
    margin-bottom:6px;
  }
  .cat-switch a{
    font-size:18px;
    font-weight:600;
    color:var(--ink);
    transition:color .3s ease, transform .3s ease;
    display:inline-flex;
    align-items:center;
    gap:8px;
  }
  .cat-switch a:hover{
    color:var(--primary-deep);
  }
  .cat-switch .arr{
    color:var(--accent-brass);
    font-size:22px;
    transition:transform .3s ease;
  }
  .cat-switch a:hover .arr{
    transform:translateX(4px);
  }
  .cat-switch a:hover .arr-back{
    transform:translateX(-4px);
  }

  /* ------- CTA ------- */
  .cta-block{
    background:var(--primary-deep);
    color:#fff;
    position:relative;
    overflow:hidden;
    padding:100px 0;
  }
  .cta-block::before{
    content:'';
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;
    background-position:center;
    opacity:.12;
  }
  .cta-block::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,rgba(10,74,66,.94) 20%,rgba(10,74,66,.72) 100%);
  }
  .cta-inner{
    position:relative;
    z-index:2;
    display:flex;
    flex-direction:column;
    gap:48px;
  }
  @media(min-width:992px){
    .cta-inner{
      flex-direction:row;
      align-items:flex-start;
      gap:80px;
    }
  }
  .cta-left{
    flex:1.15;
  }
  .cta-left h2{
    font-family:"Noto Serif SC","Songti SC",serif;
    font-size:clamp(24px, 2.6vw, 34px);
    line-height:1.4;
    margin:20px 0 16px;
    font-weight:700;
  }
  .cta-left p{
    color:rgba(255,255,255,.78);
    font-size:15px;
    line-height:1.9;
    max-width:520px;
  }
  .cta-right{
    flex:1;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.16);
    border-radius:12px;
    padding:36px;
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
  }
  .cta-right h3{
    font-size:19px;
    font-weight:600;
    color:#fff;
    margin-bottom:8px;
    letter-spacing:.02em;
  }
  .cta-right .form-note{
    font-size:13px;
    color:rgba(255,255,255,.6);
    margin-bottom:24px;
    line-height:1.7;
  }
  .form-row{
    margin-bottom:18px;
  }
  .form-row input,
  .form-row textarea{
    width:100%;
    border:none;
    border-bottom:1px solid rgba(255,255,255,.38);
    background:transparent;
    padding:12px 2px;
    color:#fff;
    font-size:15px;
    border-radius:0;
    outline:none;
    transition:border-color .3s ease;
  }
  .form-row input:focus,
  .form-row textarea:focus{
    border-bottom-color:var(--accent-brass);
  }
  .form-row textarea{
    resize:vertical;
    min-height:72px;
  }
  .form-row input::placeholder,
  .form-row textarea::placeholder{
    color:rgba(255,255,255,.45);
  }
  .cta-right .submit-btn{
    width:100%;
    background:var(--accent-brass);
    color:#fff;
    border:none;
    border-radius:6px;
    padding:13px 20px;
    font-size:15px;
    font-weight:500;
    cursor:pointer;
    transition:background .3s ease,transform .2s ease;
  }
  .cta-right .submit-btn:hover{
    background:#A76C35;
    transform:translateY(-2px);
  }
  .cta-right .submit-btn:focus-visible{
    outline:2px solid #ECD3BA;
    outline-offset:3px;
  }
  .privacy-note{
    font-size:12px;
    color:rgba(255,255,255,.4);
    line-height:1.7;
    margin-top:14px;
    text-align:center;
  }

  /* ------- 页脚 ------- */
  .site-footer{
    background:#0A3A33;
    color:rgba(255,255,255,.78);
    padding-top:70px;
  }
  .site-footer a{
    color:rgba(255,255,255,.66);
    font-size:14px;
    line-height:2.1;
    display:inline-block;
    transition:color .25s ease, transform .25s ease;
  }
  .site-footer a:hover{
    color:#fff;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:42px;
    padding-bottom:52px;
  }
  @media(min-width:768px){
    .footer-grid{
      grid-template-columns:repeat(8, 1fr);
    }
    .footer-brand{grid-column:span 3;}
    .footer-col{grid-column:span 1;
      margin-left:12px;
    }
    .footer-col-footer-contact{grid-column:span 2;}
  }
  @media(min-width:1024px){
    .footer-grid{
      grid-template-columns:5fr 1.4fr 2fr 2.2fr;
      gap:48px;
    }
    .footer-brand{padding-right:50px;}
  }
  .footer-brand .footer-logo{
    font-size:26px;
    color:#fff;
    margin-bottom:20px;
  }
  .footer-brand p{
    font-size:14px;
    line-height:1.9;
    color:rgba(255,255,255,.64);
    margin-bottom:18px;
  }
  .footer-note{
    font-size:12px;
    color:rgba(255,255,255,.42);
    line-height:1.8;
    border-left:2px solid rgba(182,122,68,.7);
    padding-left:14px;
  }
  .footer-col h4{
    font-size:15px;
    font-weight:600;
    color:#fff;
    margin-bottom:18px;
    letter-spacing:.02em;
    position:relative;
  }
  .footer-col h4::before{
    content:'';
    display:block;
    width:18px;
    height:2px;
    background:var(--accent-brass);
    margin-bottom:8px;
  }
  .footer-col a{
    display:block;
    margin-bottom:2px;
  }
  .footer-contact p{
    font-size:13px;
    color:rgba(255,255,255,.56);
    line-height:1.7;
    margin-bottom:6px;
  }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14);
  }
  .footer-bottom-inner{
    display:flex;
    flex-direction:column;
    gap:6px;
    padding:20px 0;
    font-size:13px;
    color:rgba(255,255,255,.5);
  }
  @media(min-width:768px){
    .footer-bottom-inner{
      flex-direction:row;
      justify-content:space-between;
      align-items:center;
    }
  }

  /* 响应式细节 */
  @media(max-width:992px){
    .split-left{position:relative;top:auto;}
  }
  .section-space{padding-top:96px;}

/* roulang page: category3 */
:root {
            --primary-deep: #0A4A42;
            --primary-mid: #116457;
            --accent-brass: #B67A44;
            --ink: #1A2622;
            --ink-soft: #5D665F;
            --bg-cream: #F7F5F0;
            --bg-white: #FFFFFF;
            --line: #E4E0D7;
            --danger: #AF443A;
            --success: #2E6B5C;
            --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
            --font-sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg-white);
            color: var(--ink);
            font-family: var(--font-sans);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        figure {
            margin-top: 0;
        }

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

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

        button,
        input,
        textarea,
        select {
            font: inherit;
            border: none;
            outline: none;
            background: transparent;
        }

        .container {
            width: min(100% - 40px, 1280px);
            margin-inline: auto;
        }

        .section {
            padding-block: 96px;
        }

        .section-tight {
            padding-block: 72px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }

        .header-inner {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand {
            display: inline-flex;
            align-items: baseline;
            font-family: var(--font-display);
            font-size: 27px;
            font-weight: 700;
            color: var(--primary-deep);
            letter-spacing: -0.01em;
            line-height: 1;
        }

        .brand i {
            display: inline-block;
            width: 7px;
            height: 7px;
            margin: 0 4px;
            border-radius: 50%;
            background: var(--accent-brass);
            transform: translateY(-3px);
            font-style: normal;
        }

        .brand .logo-cn {
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.1em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 38px;
        }

        .nav-link {
            position: relative;
            display: inline-block;
            padding: 8px 2px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-soft);
            transition: color 0.2s;
        }

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

        .nav-link.is-active {
            color: var(--primary-deep);
        }

        .nav-link.is-active::after {
            content: "";
            position: absolute;
            bottom: -4px;
            left: calc(50% - 3px);
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-brass);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            cursor: pointer;
            border: 1px solid transparent;
            transition: transform 0.2s, background 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
        }

        .btn:focus-visible,
        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent-brass);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--primary-deep);
            color: #fff;
            box-shadow: 0 2px 8px rgba(10, 74, 66, 0.12);
        }

        .btn-primary:hover {
            background: #06362F;
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(10, 74, 66, 0.16);
        }

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

        .btn-line {
            background: transparent;
            border-color: #D8DDD6;
            color: var(--ink);
        }

        .btn-line:hover {
            border-color: var(--primary-deep);
            color: var(--primary-deep);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.8);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        .btn-header {
            padding: 9px 20px;
            margin-left: 30px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }

        .nav-toggle span {
            display: inline-block;
            width: 22px;
            height: 2px;
            background: var(--primary-deep);
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

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

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

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

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.1em;
            color: var(--accent-brass);
            text-transform: uppercase;
        }

        .eyebrow::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--accent-brass);
        }

        .h2-title {
            font-family: var(--font-display);
            font-size: 32px;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: var(--ink);
            margin-bottom: 24px;
        }

        .section-head {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 48px;
            align-items: end;
            margin-bottom: 56px;
        }

        .section-head p {
            color: var(--ink-soft);
            max-width: 620px;
        }

        .hero-system {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background:
                linear-gradient(90deg, rgba(4, 25, 21, 0.78) 0%, rgba(8, 58, 52, 0.5) 56%, rgba(10, 74, 66, 0.15) 100%),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat var(--primary-deep);
            color: #fff;
            padding-block: 88px 60px;
        }

        .hero-inner {
            width: min(100% - 40px, 1280px);
            margin-inline: auto;
        }

        .crumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 36px;
        }

        .crumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }

        .crumb a:hover {
            color: #fff;
        }

        .crumb span {
            opacity: 0.45;
        }

        .hero-system h1 {
            font-family: var(--font-display);
            font-size: clamp(38px, 6vw, 58px);
            line-height: 1.18;
            letter-spacing: 0.01em;
            max-width: 720px;
            margin-bottom: 28px;
            font-weight: 700;
        }

        .hero-system .hero-lead {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.86);
            max-width: 640px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            margin-top: 52px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
            max-width: 900px;
        }

        .hero-meta-item strong {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            display: block;
            color: #fff;
            line-height: 1.2;
        }

        .hero-meta-item span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
        }

        .bg-cream {
            background: var(--bg-cream);
        }

        .intro-block {
            display: grid;
            grid-template-columns: 1.2fr 1.8fr;
            gap: 72px;
            align-items: start;
        }

        .intro-block .intro-left {
            position: sticky;
            top: 120px;
        }

        .intro-block .intro-left p {
            color: var(--ink-soft);
        }

        .intro-quote {
            margin-top: 36px;
            border-left: 2px solid var(--accent-brass);
            padding: 4px 0 4px 20px;
            font-family: var(--font-display);
            font-size: 20px;
            line-height: 1.8;
            color: var(--primary-deep);
        }

        .intro-text p {
            color: var(--ink-soft);
            margin-bottom: 22px;
        }

        .smart-cards {
            display: grid;
            gap: 28px;
            margin-top: 60px;
        }

        .smart-card {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            border: 1px solid var(--line);
            border-radius: 10px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 2px 8px rgba(20, 40, 35, 0.04);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .smart-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 26px rgba(20, 40, 35, 0.08);
        }

        .smart-card .media {
            overflow: hidden;
            min-height: 240px;
        }

        .smart-card .media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .smart-card:hover .media img {
            transform: scale(1.04);
        }

        .smart-card .card-body {
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            align-self: flex-start;
            font-size: 12px;
            letter-spacing: 0.06em;
            color: var(--primary-mid);
            border: 1px solid #D8DDD6;
            border-radius: 4px;
            padding: 3px 12px;
            margin-bottom: 14px;
        }

        .card-tag::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent-brass);
        }

        .smart-card h3 {
            font-size: 23px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--ink);
            margin-bottom: 12px;
        }

        .smart-card p {
            color: var(--ink-soft);
            margin-bottom: 20px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary-deep);
            font-weight: 600;
            font-size: 14px;
        }

        .text-link i {
            font-style: normal;
            transition: transform 0.25s;
        }

        .text-link:hover {
            color: var(--accent-brass);
        }

        .text-link:hover i {
            transform: translateX(4px);
        }

        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0;
            border-top: 1px solid var(--line);
        }

        .scenario-list li {
            display: grid;
            grid-template-columns: 80px 1fr 220px;
            gap: 32px;
            align-items: start;
            padding: 34px 8px;
            border-bottom: 1px solid var(--line);
            transition: background 0.2s;
        }

        .scenario-list li:hover {
            background: rgba(10, 74, 66, 0.025);
        }

        .scenario-no {
            font-family: var(--font-display);
            font-size: 26px;
            color: var(--accent-brass);
            font-weight: 700;
        }

        .scenario-list h3 {
            margin-bottom: 8px;
            font-size: 22px;
            font-weight: 600;
        }

        .scenario-list p {
            color: var(--ink-soft);
            max-width: 620px;
        }

        .scenario-note {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--primary-mid);
            padding-top: 6px;
        }

        .scenario-note::before {
            content: "";
            width: 4px;
            height: 4px;
            background: var(--accent-brass);
            border-radius: 50%;
        }

        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 20px;
            margin-top: 54px;
        }

        .step-item {
            border: 1px solid var(--line);
            border-radius: 10px;
            background: #fff;
            padding: 30px 24px;
            transition: box-shadow 0.2s, border-color 0.2s;
        }

        .step-item:hover {
            border-color: rgba(10, 74, 66, 0.3);
            box-shadow: 0 8px 20px rgba(10, 74, 66, 0.08);
        }

        .step-num {
            display: block;
            font-family: var(--font-display);
            color: var(--accent-brass);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .step-item p {
            color: var(--ink-soft);
            font-size: 14px;
            margin-bottom: 0;
        }

        .cap-band {
            color: #fff;
            background:
                linear-gradient(135deg, rgba(4, 30, 27, 0.94), rgba(9, 79, 70, 0.86)),
                url('/assets/images/backpic/back-3.webp') center / cover no-repeat #0A4A42;
        }

        .cap-band .eyebrow {
            color: #E4AD77;
        }

        .cap-band .eyebrow::before {
            background: #E4AD77;
        }

        .cap-head {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            align-items: flex-end;
            margin-bottom: 48px;
        }

        .cap-head h2 {
            color: #fff;
            max-width: 560px;
        }

        .cap-head p {
            color: rgba(255, 255, 255, 0.72);
            max-width: 420px;
        }

        .cap-features {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
        }

        .cap-feature {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 22px 22px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
        }

        .cap-feature i {
            flex: 0 0 auto;
            width: 8px;
            height: 8px;
            margin-top: 10px;
            border-radius: 50%;
            background: #E4AD77;
            font-style: normal;
        }

        .cap-feature strong {
            display: block;
            font-size: 16px;
            color: #fff;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .cap-feature span {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
        }

        .faq-wrap {
            max-width: 880px;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            margin-top: 52px;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            padding: 22px 4px;
            cursor: pointer;
            font-weight: 600;
            font-size: 17px;
            color: var(--ink);
            transition: color 0.2s;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 26px;
            font-weight: 400;
            line-height: 1;
            color: var(--accent-brass);
            transition: transform 0.3s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item summary:hover {
            color: var(--primary-deep);
        }

        .faq-a {
            padding: 2px 20px 28px 4px;
            color: var(--ink-soft);
            max-width: 760px;
        }

        .faq-a p {
            margin-bottom: 12px;
        }

        .cta-wrap {
            background: transparent;
        }

        .cta-panel {
            border-radius: 16px;
            border: 1px solid var(--line);
            background: var(--bg-cream);
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 60px;
            padding: 64px;
            align-items: center;
        }

        .cta-panel h2 {
            font-family: var(--font-display);
            font-size: 32px;
            line-height: 1.45;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .cta-panel .cta-lead {
            color: var(--ink-soft);
            margin-bottom: 20px;
        }

        .cta-note li {
            display: flex;
            gap: 10px;
            color: var(--ink-soft);
            font-size: 14px;
            margin-bottom: 6px;
        }

        .cta-note li::before {
            content: "·";
            color: var(--accent-brass);
            font-weight: 700;
        }

        .form-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 34px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .form-control {
            width: 100%;
            border: 1px solid var(--line);
            border-radius: 6px;
            padding: 13px 15px;
            font-size: 15px;
            background: #fff;
            color: var(--ink);
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .form-control::placeholder {
            color: #A6ADA8;
        }

        .form-control:focus {
            border-color: var(--primary-deep);
            box-shadow: 0 0 0 3px rgba(10, 74, 66, 0.08);
        }

        textarea.form-control {
            min-height: 96px;
            resize: vertical;
        }

        .sibling-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border: 1px solid var(--line);
            border-radius: 12px;
            background: #fff;
            margin-top: 16px;
            overflow: hidden;
        }

        .sibling-nav a {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding: 22px 28px;
            transition: background 0.2s;
        }

        .sibling-nav a:hover {
            background: var(--bg-cream);
        }

        .sibling-nav a + a {
            border-left: 1px solid var(--line);
        }

        .sibling-nav span {
            font-size: 12px;
            color: var(--ink-soft);
            letter-spacing: 0.08em;
        }

        .sibling-nav strong {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-deep);
        }

        .site-footer {
            margin-top: 110px;
            background: #0A3A33;
            color: rgba(255, 255, 255, 0.84);
            padding-top: 72px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 5fr 2fr 2fr 3fr;
            gap: 56px;
            padding-bottom: 56px;
        }

        .footer-brand p {
            margin: 22px 0 12px;
            color: rgba(255, 255, 255, 0.72);
            max-width: 380px;
            font-size: 15px;
        }

        .footer-brand .footer-note {
            color: rgba(255, 255, 255, 0.52);
            border-left: 2px solid rgba(182, 122, 68, 0.8);
            padding-left: 14px;
            font-size: 13px;
            max-width: 380px;
        }

        .brand.footer-logo {
            color: #fff;
        }

        .brand.footer-logo i {
            background: var(--accent-brass);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            line-height: 2.1;
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-contact p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            margin-bottom: 12px;
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-block: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 1100px) {
            .section {
                padding-block: 80px;
            }

            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }

            .footer-contact {
                grid-column: span 2;
                margin-top: 12px;
            }

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

            .cta-panel {
                grid-template-columns: 1fr;
                padding: 44px;
                gap: 40px;
            }
        }

        @media (max-width: 900px) {
            .header-inner {
                height: 68px;
            }

            .main-nav {
                position: absolute;
                top: 68px;
                left: 0;
                width: 100%;
                max-height: 0;
                overflow: hidden;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                background: #fff;
                border-bottom: 1px solid var(--line);
                transition: max-height 0.35s ease;
                padding: 0 20px;
                box-shadow: 0 14px 24px rgba(20, 40, 35, 0.06);
            }

            .site-header.nav-open .main-nav {
                max-height: 380px;
            }

            .main-nav .nav-link {
                width: 100%;
                padding: 15px 2px;
                border-bottom: 1px solid #EEECE6;
                color: var(--ink-soft);
            }

            .main-nav .nav-link.is-active::after {
                display: none;
            }

            .main-nav .nav-link.is-active {
                color: var(--primary-deep);
            }

            .nav-toggle {
                display: inline-flex;
            }

            .btn-header {
                display: none;
            }

            .hero-system {
                min-height: 560px;
                padding-block: 70px 44px;
            }

            .section-head,
            .intro-block,
            .scenario-list li {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .intro-block .intro-left {
                position: static;
            }

            .smart-card {
                grid-template-columns: 1fr;
            }

            .smart-card .media {
                min-height: 220px;
            }

            .scenario-note {
                display: none;
            }

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

            .cta-panel {
                padding: 30px 24px;
            }
        }

        @media (max-width: 560px) {
            .container {
                width: calc(100% - 32px);
            }

            .section {
                padding-block: 60px;
            }

            .h2-title {
                font-size: 26px;
            }

            .hero-system {
                min-height: 540px;
            }

            .hero-system .hero-lead {
                font-size: 15px;
            }

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

            .hero-meta {
                gap: 20px;
                margin-top: 36px;
            }

            .smart-card .card-body {
                padding: 24px 22px;
            }

            .smart-card h3 {
                font-size: 20px;
            }

            .scenario-list li {
                padding: 24px 0;
                gap: 12px;
            }

            .scenario-no {
                font-size: 20px;
            }

            .scenario-list h3 {
                font-size: 18px;
            }

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

            .cap-features {
                grid-template-columns: 1fr;
            }

            .faq-item summary {
                font-size: 15px;
                line-height: 1.6;
            }

            .sibling-nav {
                grid-template-columns: 1fr;
            }

            .sibling-nav a + a {
                border-left: 0;
                border-top: 1px solid var(--line);
            }

            .site-footer {
                padding-top: 56px;
                margin-top: 80px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .footer-contact {
                grid-column: auto;
            }

            .footer-bottom-inner {
                flex-direction: column;
            }

            .form-card {
                padding: 24px 18px;
            }
        }