/* roulang page: index */
:root {
  --color-primary: #0E4C4B;
  --color-primary-dark: #093A3A;
  --color-accent: #C09A5B;
  --color-bg: #F6F4EE;
  --color-bg-soft: #EFEDE6;
  --color-text: #1B211F;
  --color-text-sub: #64706D;
  --color-border: #E5E0D4;
  --color-success: #2F6B5C;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --radius-tag: 999px;
  --shadow-card: 0 8px 24px rgba(27,33,31,0.06);
  --shadow-card-hover: 0 12px 32px rgba(14,76,75,0.10);
  --container: 1200px;
  --space-section: 96px;
  --space-section-mb: 56px;
  --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.18s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: rgba(246,244,238,0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow 0.2s ease;
}
.site-header.scrolled { box-shadow: 0 4px 30px rgba(27,33,31,0.05); }
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px; height: 36px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.logo-mark::before {
  content: "";
  width: 14px; height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  position: absolute;
  transform: rotate(45deg);
}
.logo-mark::after {
  content: "";
  width: 2px; height: 14px;
  background: var(--color-accent);
  border-radius: 2px;
  position: absolute;
  transform: rotate(45deg);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
}
.logo-text span { color: var(--color-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: flex-end;
}
.nav-links a {
  font-size: 15px;
  color: #333;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
  transition: color 0.18s ease;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 45%;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
}
.nav-cta {
  margin-left: 8px;
  flex-shrink: 0;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: background 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(14,76,75,0.22);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255,255,255,0.7);
  transition: background 0.18s ease, border-color 0.18s ease;
  cursor: pointer;
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: #fff;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: background 0.18s ease, transform 0.18s ease;
  cursor: pointer;
}
.btn-light:hover {
  background: rgba(255,255,255,0.92);
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px; height: 40px;
  border-radius: 8px;
  gap: 7px;
  cursor: pointer;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 160px 0 100px;
  background: linear-gradient(90deg, rgba(14,76,75,0.65) 0%, rgba(14,76,75,0.3) 55%, rgba(14,76,75,0.1) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat, var(--color-primary);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: rgba(255,255,255,0.2);
}
.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
  padding: 0 24px;
  width: 100%;
  margin: 0 auto;
}
.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 6px 16px;
  border-radius: var(--radius-tag);
  margin-bottom: 28px;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.hero-tagline::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.hero h1 {
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #fff;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
  margin-bottom: 36px;
  max-width: 540px;
}
.hero-ctas {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.4);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.hero-link:hover {
  border-color: #fff;
  color: #fff;
}
.hero-link svg { transition: transform 0.2s ease; }
.hero-link:hover svg { transform: translateX(4px); }
.hero-bottom {
  position: absolute;
  bottom: 40px;
  left: 0; right: 0;
  z-index: 2;
}
.hero-stats-mini {
  display: flex;
  gap: 40px;
  opacity: 0.8;
}
.hero-stats-mini span {
  color: rgba(255,255,255,0.85);
  font-size: 13px;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-stats-mini span::before {
  content: "";
  width: 4px; height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ===== Section base ===== */
.section { padding: var(--space-section) 0; }
.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-text-sub);
  line-height: 1.8;
}

/* ===== Pain Points ===== */
.pain-points {
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.pain-list {
  max-width: 920px;
  margin: 0 auto;
}
.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.2s ease;
}
.pain-item:last-child { border-bottom: none; }
.pain-item:hover { transform: translateX(4px); }
.pain-num {
  font-family: "SF Mono", "Roboto Mono", monospace;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding-top: 4px;
  flex-shrink: 0;
  width: 48px;
  transition: color 0.2s ease;
}
.pain-item:hover .pain-num { color: var(--color-accent); }
.pain-body { flex: 1; }
.pain-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--color-text);
}
.pain-desc {
  font-size: 14px;
  color: var(--color-text-sub);
  flex-shrink: 0;
  max-width: 200px;
  text-align: right;
  padding-top: 6px;
}

/* ===== Solutions ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}
.solution-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.solution-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.solution-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}
.solution-card:hover::before { opacity: 1; }
.solution-card .card-tag {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.solution-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 12px;
}
.solution-card p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.8;
  margin-bottom: 18px;
}
.solution-card .card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s ease;
}
.solution-card .card-link:hover { gap: 10px; }
.solution-main {
  grid-column: span 7;
  display: flex;
  flex-direction: column;
}
.solution-main .card-img {
  border-radius: var(--radius-img);
  overflow: hidden;
  margin-bottom: 20px;
}
.solution-main .card-img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.solution-main:hover .card-img img { transform: scale(1.02); }
.solution-side {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.solution-side .card-img {
  border-radius: var(--radius-img);
  overflow: hidden;
  margin-bottom: 20px;
}
.solution-side .card-img img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}
.solution-bottom-wrap {
  grid-column: span 12;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* ===== Stats ===== */
.stats {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.stats-grid {
  display: flex;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
}
.stat-item {
  flex: 1;
  text-align: center;
  padding: 0 20px;
  position: relative;
}
.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 48px;
  background: var(--color-border);
}
.stat-num {
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  display: block;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 14px;
  color: var(--color-text-sub);
  letter-spacing: 0.05em;
}

/* ===== FAQ ===== */
.faq {
  background: var(--color-bg-soft);
}
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 4px;
  text-align: left;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.faq-q:hover { color: var(--color-primary); }
.faq-icon {
  width: 22px; height: 22px;
  position: relative;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-text-sub);
  transition: transform 0.25s ease, background 0.2s ease;
}
.faq-icon::before {
  width: 14px; height: 2px;
  border-radius: 2px;
}
.faq-icon::after {
  width: 2px; height: 14px;
  border-radius: 2px;
}
.faq-item.active .faq-icon::before { transform: translate(-50%, -50%) rotate(180deg); }
.faq-item.active .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after { background: var(--color-primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner {
  padding: 0 4px 24px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-sub);
}

/* ===== News ===== */
.news {
  background: var(--color-bg);
}
.news-list {
  border-top: 1px solid var(--color-border);
}
.news-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.2s ease;
}
.news-row:hover { background: rgba(14,76,75,0.02); }
.news-date {
  font-family: "SF Mono", "Roboto Mono", monospace;
  font-size: 14px;
  color: var(--color-primary);
  flex-shrink: 0;
  width: 120px;
  font-weight: 500;
}
.news-title {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.news-title:hover { color: var(--color-primary); }
.news-cat {
  font-size: 12px;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-tag);
  padding: 4px 14px;
  flex-shrink: 0;
  background: #fff;
}
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap 0.2s ease;
}
.news-more:hover { gap: 14px; }
.empty-box {
  border: 1px dashed #C8C2B6;
  background: rgba(246,244,238,0.5);
  border-radius: var(--radius-card);
  padding: 48px 24px;
  text-align: center;
  font-size: 15px;
  color: var(--color-text-sub);
}

/* ===== CTA ===== */
.cta-banner {
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
  padding: 72px 0;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity: 0.08;
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.cta-inner h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  max-width: 600px;
}
.cta-inner p {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  margin-top: 12px;
  max-width: 560px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding-top: 64px;
}
.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.8;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-sub);
  transition: color 0.2s ease;
}
.footer-col ul a:hover { color: var(--color-primary); }
.footer-contact li {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact li::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
}
.footer-bottom-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-sub);
}
.footer-bottom-inner a { color: var(--color-text-sub); }
.footer-bottom-inner a:hover { color: var(--color-primary); }

/* ===== Modal ===== */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(20,26,24,0.5);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.modal-mask.show { display: flex; opacity: 1; }
.modal-card {
  width: 520px;
  max-width: 100%;
  max-height: 90vh;
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  position: relative;
  transform: translateY(8px);
  transition: transform 0.25s ease;
  overflow-y: auto;
}
.modal-mask.show .modal-card { transform: translateY(0); }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  transition: background 0.2s ease;
}
.modal-close:hover { background: var(--color-border); }
.modal-close svg { width: 18px; height: 18px; }
.modal-card h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}
.modal-card .modal-desc {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 28px;
  line-height: 1.7;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-group input,
.form-group select {
  width: 100%;
  height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 0 16px;
  font-size: 15px;
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  border-width: 2px;
  padding: 0 15px;
  box-shadow: 0 0 0 4px rgba(14,76,75,0.15);
}
.form-submit {
  width: 100%;
  height: 50px;
  background: var(--color-primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: background 0.2s ease, transform 0.2s ease;
  margin-top: 8px;
  cursor: pointer;
  border: none;
}
.form-submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}
.privacy-note {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--color-text-sub);
}
.privacy-note a {
  color: var(--color-text-sub);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .nav-links { gap: 20px; }
  .solution-main { grid-column: span 12; }
  .solution-side { grid-column: span 12; }
  .solution-side .card-img img { height: 180px; }
}
@media (max-width: 767px) {
  :root { --space-section: 56px; }
  .container, .header-inner, .footer-grid, .footer-bottom-inner, .hero-content { padding-left: 18px; padding-right: 18px; }
  .site-header { height: 64px; }
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(246,244,238,0.97);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0 18px;
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    display: flex;
  }
  .nav-links.open { max-height: 500px; }
  .nav-links a {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-links a.active::after { display: none; }
  .nav-cta { display: none; }
  .hero { padding: 120px 0 80px; min-height: 60vh; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 15px; }
  .pain-item { flex-direction: column; gap: 10px; padding: 20px 0; }
  .pain-desc { max-width: 100%; text-align: left; }
  .solutions-grid { gap: 16px; }
  .solution-card { padding: 20px; }
  .solution-bottom-wrap { grid-template-columns: 1fr; }
  .stats-grid { flex-direction: column; gap: 32px; }
  .stat-item + .stat-item::before { display: none; }
  .news-row { flex-wrap: wrap; gap: 8px 16px; }
  .news-date { width: auto; font-size: 13px; }
  .news-title { font-size: 15px; min-width: 100%; order: 2; }
  .news-cat { order: 3; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .cta-inner .btn-primary { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .modal-card { padding: 28px 20px; }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-ghost { width: 100%; }
}

/* roulang page: article */
:root {
  --color-primary: #0E4C4B;
  --color-primary-dark: #093A3A;
  --color-accent: #C09A5B;
  --color-bg: #F6F4EE;
  --color-surface: #FFFFFF;
  --color-text: #1B211F;
  --color-text-weak: #64706D;
  --color-border: #E5E0D4;
  --color-success: #2F6B5C;
  --color-grey: #F0EDE5;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --shadow-card: 0 8px 24px rgba(27,33,31,0.06);
  --shadow-hover: 0 12px 32px rgba(14,76,75,0.10);
  --container: 1200px;
  --space-section: 96px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 80px;
  background: rgba(246, 244, 238, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.logo-mark {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  position: relative;
  flex-shrink: 0;
}
.logo-mark::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 1px;
  background: var(--color-accent);
  top: 50%;
  left: 10px;
}
.logo-text span { color: var(--color-primary); font-weight: 700; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 15px;
  color: #333;
  transition: color 0.18s ease;
  position: relative;
  padding: 6px 0;
}
.nav-links a:hover { color: var(--color-primary); }
.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 45%;
  height: 2px;
  border-radius: 2px;
  background: var(--color-primary);
}
.nav-cta {
  margin-left: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.18s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(14,76,75,0.22);
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-ghost:hover {
  background: rgba(14,76,75,0.06);
}
.btn-light {
  background: #fff;
  color: var(--color-primary);
}
.btn-light:hover {
  background: rgba(255,255,255,0.92);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.14);
}
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border-radius: 8px;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.menu-toggle.open span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle.open span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* Article Hero */
.article-hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0 48px;
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, rgba(14,76,75,0.05) 100%);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-weak);
  margin-bottom: 28px;
}
.breadcrumb a { color: var(--color-text-weak); transition: color 0.18s; }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-border); }
.breadcrumb .current { color: var(--color-primary); font-weight: 500; }
.article-hero .content {
  max-width: 820px;
}
.article-title {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-text);
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-size: 14px;
  color: var(--color-text-weak);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}
.article-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}
.article-meta .meta-item .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* Article Body */
.article-body-section {
  padding: 64px 0 80px;
  background: var(--color-bg);
}
.article-layout {
  max-width: 780px;
  margin: 0 auto;
}
.article-content {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
}
.article-content p { margin-bottom: 1.5em; }
.article-content h2, .article-content h3, .article-content h4 {
  margin-top: 2em;
  margin-bottom: 0.8em;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}
.article-content h2 { font-size: 26px; border-left: 4px solid var(--color-primary); padding-left: 16px; }
.article-content h3 { font-size: 21px; border-left: 4px solid var(--color-accent); padding-left: 16px; }
.article-content h4 { font-size: 18px; }
.article-content blockquote {
  margin: 2em 0;
  padding: 20px 24px;
  background: var(--color-grey);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 8px 8px 0;
  color: var(--color-text-weak);
  font-size: 16px;
}
.article-content ul, .article-content ol {
  margin: 1.5em 0;
  padding-left: 1.4em;
}
.article-content ul li {
  list-style: disc;
  color: var(--color-text);
  margin-bottom: 0.5em;
}
.article-content ul li::marker { color: var(--color-primary); }
.article-content ol li { list-style: decimal; margin-bottom: 0.5em; }
.article-content ol li::marker { color: var(--color-primary); font-weight: 600; }
.article-content img {
  width: 100%;
  border-radius: var(--radius-img);
  border: 1px solid var(--color-border);
  margin: 2em 0;
}
.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-content a:hover { color: var(--color-primary-dark); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 15px;
}
.article-content th {
  background: var(--color-primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}
.article-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}
.article-content code {
  background: var(--color-grey);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}
.article-footer-links {
  display: flex;
  gap: 20px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.article-footer-links a {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 500;
  transition: color 0.18s;
}
.article-footer-links a:hover { color: var(--color-primary-dark); }
.not-found {
  text-align: center;
  padding: 64px 24px;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  margin: 48px 0;
}
.not-found h2 { font-size: 28px; margin-bottom: 16px; }
.not-found p { color: var(--color-text-weak); margin-bottom: 24px; }
.not-found .btn { display: inline-flex; }

/* Related Section */
.related-section {
  padding: 72px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.related-section .container { max-width: 1080px; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.section-head .more-link {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.section-head .more-link:hover { color: var(--color-primary-dark); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.25s ease;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.related-card .cover {
  height: 180px;
  overflow: hidden;
  background: var(--color-grey);
}
.related-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .cover img { transform: scale(1.04); }
.related-card .card-body {
  padding: 22px 24px;
}
.related-card .card-date {
  font-size: 13px;
  color: var(--color-text-weak);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.related-card h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--color-text);
  transition: color 0.18s;
}
.related-card:hover h3 { color: var(--color-primary); }

/* CTA Banner */
.cta-banner {
  background: var(--color-primary);
  padding: 72px 24px;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.25) 0%, transparent 60%);
  pointer-events: none;
}
.cta-banner .cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
}
.cta-banner h2 {
  color: #fff;
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  line-height: 1.4;
  max-width: 520px;
}
.cta-banner p {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  margin-top: 10px;
  max-width: 480px;
}

/* Footer */
.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.footer-brand .logo { font-size: 20px; margin-bottom: 16px; }
.footer-brand p {
  font-size: 14px;
  color: var(--color-text-weak);
  line-height: 1.8;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-weak);
  transition: color 0.18s;
}
.footer-col ul a:hover { color: var(--color-primary); }
.footer-contact li {
  font-size: 14px;
  color: var(--color-text-weak);
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  margin-top: 56px;
  padding: 20px 0;
}
.footer-bottom-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-weak);
}
.footer-bottom-inner a { color: var(--color-text-weak); transition: color 0.18s; }
.footer-bottom-inner a:hover { color: var(--color-primary); }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(20,26,24,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-box {
  background: #fff;
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
  transform: translateY(8px);
  transition: transform 0.2s ease;
  box-shadow: 0 24px 64px rgba(0,0,0,0.18);
}
.modal-overlay.active .modal-box { transform: translateY(0); }
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-weak);
  font-size: 22px;
  transition: background 0.18s;
}
.modal-close:hover { background: var(--color-grey); }
.modal-box h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.modal-box .modal-desc {
  font-size: 14px;
  color: var(--color-text-weak);
  margin-bottom: 28px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-text);
}
.form-group input,
.form-group select {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: #fff;
  color: var(--color-text);
  transition: border-color 0.18s, box-shadow 0.18s;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(14,76,75,0.15);
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364706D' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}
.form-submit {
  width: 100%;
  margin-top: 8px;
}
.privacy-note {
  font-size: 12px;
  color: var(--color-text-weak);
  text-align: center;
  margin-top: 16px;
}
.privacy-note a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Responsive */
@media (max-width: 1199px) {
  .nav-links { gap: 20px; }
  .nav-links a { font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991px) {
  .menu-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(246,244,238,0.98);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .nav-links.open {
    max-height: 420px;
    padding: 12px 24px 20px;
  }
  .nav-links a {
    width: 100%;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-links a.active::after { display: none; }
  .nav-links a.active {
    color: var(--color-primary);
    font-weight: 600;
  }
  .nav-cta {
    margin: 16px 0 0;
    width: 100%;
  }
  .related-grid { grid-template-columns: 1fr; gap: 20px; }
  .cta-banner .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-banner .btn { width: 100%; }
  .article-hero { padding: 48px 0 36px; }
}
@media (max-width: 767px) {
  .site-header { height: 64px; }
  .header-inner { height: 64px; }
  .nav-links { top: 64px; }
  .logo { font-size: 18px; }
  .container { padding: 0 18px; }
  .article-hero { padding: 36px 0 28px; }
  .article-title { font-size: 26px; line-height: 1.4; }
  .article-meta { flex-wrap: wrap; gap: 16px; font-size: 13px; }
  .article-body-section { padding: 48px 0 56px; }
  .article-content { font-size: 16px; line-height: 1.85; }
  .article-content h2 { font-size: 22px; }
  .article-content h3 { font-size: 19px; }
  .related-section { padding: 56px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .related-card .cover { height: 160px; }
  .cta-banner { padding: 56px 18px; }
  .cta-banner h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; justify-content: center; }
  .modal-box { padding: 32px 24px; }
}

/* roulang page: category4 */
:root {
  --color-primary: #0E4C4B;
  --color-primary-dark: #093A3A;
  --color-primary-light: rgba(14, 76, 75, 0.08);
  --color-accent: #C09A5B;
  --color-bg: #F6F4EE;
  --color-bg-soft: #EFEDE5;
  --color-text: #1B211F;
  --color-text-sub: #64706D;
  --color-border: #E5E0D4;
  --color-success: #2F6B5C;
  --color-white: #FFFFFF;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(27, 33, 31, 0.06);
  --shadow-hover: 0 12px 32px rgba(14, 76, 75, 0.10);
  --container-max: 1200px;
  --spacing-section: 96px;
  --spacing-section-mobile: 56px;
  --transition-base: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

ul,
ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: rgba(246, 244, 238, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.header-inner {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.logo-mark::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 1px;
  background: var(--color-accent);
  left: 100%;
  top: 50%;
  margin-left: 4px;
  transform-origin: left;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.logo-text span {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  color: #333;
  padding: 6px 0;
  position: relative;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.nav-links a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 45%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  border: none;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background var(--transition-base);
}

.btn-ghost:hover {
  background: var(--color-primary-light);
}

.text-link {
  color: var(--color-primary);
  font-weight: 600;
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition-base);
}

.text-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  transform-origin: left;
  transition: transform 200ms ease;
}

.text-link:hover::after {
  transform: scaleX(0.4);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  width: 42px;
  height: 42px;
  background: transparent;
  cursor: pointer;
  padding: 0 8px;
}

.hamburger-line {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 200ms ease;
}

.mobile-panel {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  background: rgba(246, 244, 238, 0.98);
  border-bottom: 1px solid var(--color-border);
  z-index: 999;
  padding: 8px 24px 16px;
}

.mobile-panel.open {
  display: block;
}

.mobile-panel a {
  display: block;
  height: 48px;
  line-height: 48px;
  font-size: 16px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  padding: 0 4px;
}

.mobile-panel a:last-child {
  border-bottom: none;
}

.mobile-panel a.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========== Page Hero ========== */
.page-hero {
  background: var(--color-bg-soft);
  padding: 160px 0 64px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  right: -160px;
  top: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(14, 76, 75, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.page-hero-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  position: relative;
}

.page-hero-copy {
  max-width: 720px;
}

.page-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14, 76, 75, 0.08);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.page-hero-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  letter-spacing: 0.01em;
  margin-bottom: 20px;
}

.page-hero h1 .highlight {
  color: var(--color-primary);
  position: relative;
}

.page-hero p {
  font-size: 17px;
  color: var(--color-text-sub);
  line-height: 1.9;
  max-width: 600px;
}

.page-hero-meta {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.page-hero-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-sub);
  background: var(--color-white);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}

/* ========== Contact Plans ========== */
.contact-plans-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.contact-plans-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.contact-plans-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
}

.contact-plans-header p {
  color: var(--color-text-sub);
  font-size: 15px;
  max-width: 360px;
}

.contact-list {
  border-top: 1px solid var(--color-border);
}

.contact-list-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  padding: 36px 0;
  border-bottom: 1px solid var(--color-border);
  transition: padding-left 200ms ease, background 200ms ease;
}

.contact-list-item:hover {
  padding-left: 16px;
  background: linear-gradient(90deg, rgba(14, 76, 75, 0.02) 0%, transparent 80%);
}

.contact-list-left {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  flex: 1;
}

.contact-list-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: "SF Mono", "JetBrains Mono", "Consolas", monospace;
  letter-spacing: 0.05em;
  width: 48px;
  flex-shrink: 0;
  padding-top: 6px;
}

.contact-list-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.45;
  margin-bottom: 10px;
}

.contact-list-body p {
  font-size: 15px;
  color: var(--color-text-sub);
  line-height: 1.85;
  max-width: 520px;
}

.contact-list-extra {
  text-align: right;
  flex-shrink: 0;
  padding-top: 4px;
}

.contact-list-extra .badge {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-sub);
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-white);
  white-space: nowrap;
}

.contact-list-extra .badge.recommend {
  color: var(--color-primary);
  border-color: rgba(14, 76, 75, 0.3);
  background: rgba(14, 76, 75, 0.04);
}

.contact-list-arrow {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-primary);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 200ms ease, transform 200ms ease;
}

.contact-list-item:hover .contact-list-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ========== Channels Section ========== */
.channels-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg-soft);
}

.channels-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.channels-visual {
  position: relative;
  border-radius: var(--radius-img);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.channels-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.channels-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 76, 75, 0) 60%, rgba(14, 76, 75, 0.18) 100%);
  border-radius: var(--radius-img);
}

.channels-copy h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 20px;
}

.channels-copy > p {
  font-size: 16px;
  color: var(--color-text-sub);
  line-height: 1.9;
  margin-bottom: 36px;
}

.channels-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.channels-list-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  transition: padding-left 180ms ease;
}

.channels-list-item:last-child {
  border-bottom: none;
}

.channels-list-item:hover {
  padding-left: 8px;
}

.channels-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(14, 76, 75, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.channels-text {
  flex: 1;
}

.channels-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.channels-text p {
  font-size: 14px;
  color: var(--color-text-sub);
}

.channels-tag {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 600;
  flex-shrink: 0;
}

/* ========== Steps Section ========== */
.steps-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg);
}

.steps-header {
  text-align: center;
  margin-bottom: 56px;
}

.steps-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.steps-header p {
  font-size: 16px;
  color: var(--color-text-sub);
  max-width: 560px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.step-item {
  text-align: center;
  padding: 24px 20px;
  position: relative;
}

.step-item::after {
  content: '';
  position: absolute;
  top: 48px;
  right: -1px;
  width: 70%;
  height: 1px;
  border-top: 1px dashed var(--color-border);
}

.step-item:last-child::after {
  display: none;
}

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto 20px;
  position: relative;
  z-index: 2;
  background: var(--color-bg);
}

.step-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.8;
  max-width: 220px;
  margin: 0 auto;
}

/* ========== FAQ Section ========== */
.faq-section {
  padding: var(--spacing-section) 0;
  background: var(--color-bg-soft);
}

.faq-header {
  text-align: center;
  margin-bottom: 48px;
}

.faq-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 12px;
}

.faq-header p {
  font-size: 16px;
  color: var(--color-text-sub);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

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

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 24px 8px;
  background: transparent;
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: color 180ms ease;
}

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

.faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--color-primary);
  transition: transform 250ms ease;
}

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

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

.faq-item.active .faq-icon::after {
  transform: scaleY(0);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 280ms ease;
}

.faq-answer-inner {
  padding: 0 8px 28px;
  font-size: 15.5px;
  color: var(--color-text-sub);
  line-height: 1.9;
  max-width: 680px;
}

/* ========== CTA Banner ========== */
.cta-section {
  padding: 72px 0;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.08;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-copy h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.45;
  margin-bottom: 8px;
}

.cta-copy p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.cta-actions .btn-primary {
  background: var(--color-white);
  color: var(--color-primary);
}

.cta-actions .btn-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.cta-actions .btn-ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

.cta-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--color-bg);
  padding: 64px 0 0;
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
}

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

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.8;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: var(--color-text-sub);
  transition: color 180ms ease;
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-contact li {
  font-size: 14px;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.footer-bottom {
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
}

.footer-bottom-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom-inner span,
.footer-bottom-inner a {
  font-size: 13px;
  color: var(--color-text-sub);
}

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

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 26, 24, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease, visibility 200ms ease;
  z-index: 2000;
  padding: 24px;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  width: 520px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-bg);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.12);
  padding: 40px;
  position: relative;
  transform: translateY(8px);
  transition: transform 200ms ease;
}

.modal-overlay.open .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 180ms ease;
}

.modal-close:hover {
  background: var(--color-bg-soft);
}

.modal-close::before,
.modal-close::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
}

.modal-close::before {
  transform: rotate(45deg);
}

.modal-close::after {
  transform: rotate(-45deg);
}

.modal-box h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.modal-box .modal-desc {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 28px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-row label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.form-row input,
.form-row select {
  height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: var(--color-white);
  padding: 0 16px;
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.form-row input:focus,
.form-row select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 76, 75, 0.15);
}

.form-privacy {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: 16px;
  text-align: center;
}

.form-privacy a {
  color: var(--color-primary);
}

/* ========== Responsive ========== */
@media (max-width: 1199px) {
  .nav-links {
    gap: 22px;
  }

  .channels-grid {
    gap: 40px;
  }

  .channels-visual img {
    height: 360px;
  }
}

@media (max-width: 1023px) {
  .nav-links {
    display: none;
  }

  .header-cta .btn-primary {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-panel {
    top: 64px;
  }

  .site-header,
  .header-inner {
    height: 64px;
  }

  .header-inner {
    padding: 0 18px;
  }

  .logo-text {
    font-size: 18px;
  }

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

  .channels-visual img {
    height: 300px;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }

  .step-item::after {
    display: none;
  }

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

@media (max-width: 767px) {
  .container {
    padding: 0 18px;
  }

  .page-hero {
    padding: 120px 0 48px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .page-hero p {
    font-size: 16px;
  }

  .contact-plans-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 32px;
  }

  .contact-list-item {
    flex-direction: column;
    gap: 16px;
    padding: 28px 0;
  }

  .contact-list-left {
    gap: 16px;
  }

  .contact-list-num {
    font-size: 13px;
    width: 36px;
  }

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

  .contact-list-extra {
    text-align: left;
    padding-left: 52px;
  }

  .channels-section,
  .steps-section,
  .faq-section {
    padding: 56px 0;
  }

  .channels-visual img {
    height: 220px;
  }

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

  .step-item {
    max-width: 320px;
    margin: 0 auto;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .cta-actions {
    width: 100%;
  }

  .cta-actions .btn-primary,
  .cta-actions .btn-ghost {
    flex: 1;
    padding: 0 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .faq-question {
    font-size: 16px;
    padding: 18px 8px;
  }

  .contact-plans-header h2,
  .steps-header h2,
  .faq-header h2,
  .channels-copy h2 {
    font-size: 24px;
  }

  .modal-box {
    padding: 28px 24px;
  }

  .form-row input,
  .form-row select,
  .btn-primary,
  .btn-ghost {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .contact-list-extra {
    padding-left: 0;
  }

  .contact-list-extra .badge {
    display: inline-flex;
    margin-bottom: 4px;
  }

  .channels-list-item {
    flex-wrap: wrap;
  }
}

/* roulang page: category3 */
:root {
    --color-primary: #0E4C4B;
    --color-primary-dark: #093A3A;
    --color-accent: #C09A5B;
    --color-accent-light: rgba(192, 154, 91, 0.14);
    --color-bg: #F6F4EE;
    --color-surface: #FFFFFF;
    --color-text: #1B211F;
    --color-text-sub: #64706D;
    --color-border: #E5E0D4;
    --color-success: #2F6B5C;
    --radius-card: 14px;
    --radius-btn: 8px;
    --radius-img: 12px;
    --shadow-card: 0 8px 24px rgba(27, 33, 31, 0.06);
    --shadow-card-hover: 0 12px 32px rgba(14, 76, 75, 0.10);
    --container-width: 1200px;
    --header-height: 80px;
    --space-section: 96px;
    --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
  }

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

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

  input,
  select,
  textarea {
    font-family: inherit;
    font-size: 14px;
    color: var(--color-text);
  }

  :focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }

  .container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
  }

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: 16px;
  }

  .section-label::before {
    content: "";
    display: block;
    width: 24px;
    height: 1px;
    background-color: var(--color-accent);
  }

  .section-title {
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.35;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--color-text);
    margin-bottom: 20px;
  }

  .section-desc {
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-text-sub);
    max-width: 720px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.18s ease;
    white-space: nowrap;
  }

  .btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
  }

  .btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(14, 76, 75, 0.18);
  }

  .btn-ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
  }

  .btn-ghost:hover {
    background: rgba(14, 76, 75, 0.06);
  }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: gap 0.2s ease;
  }

  .link-arrow:hover {
    gap: 12px;
  }

  /* Header */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(246, 244, 238, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    gap: 32px;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .logo-mark {
    width: 28px;
    height: 28px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    position: relative;
    display: block;
  }

  .logo-mark::after {
    content: "";
    position: absolute;
    top: 6px;
    left: 6px;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
  }

  .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.01em;
    line-height: 1.2;
  }

  .logo-text span {
    color: var(--color-primary);
    font-weight: 600;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
  }

  .nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    padding: 6px 0;
    position: relative;
    transition: color 0.2s ease;
  }

  .nav-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: width 0.25s ease;
  }

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

  .nav-links a.active {
    color: var(--color-primary);
    font-weight: 600;
  }

  .nav-links a.active::after {
    width: 45%;
  }

  .nav-cta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
  }

  .nav-cta .btn {
    height: 40px;
    padding: 0 20px;
    font-size: 14px;
  }

  .menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 7px;
    border-radius: 8px;
    transition: background 0.2s ease;
  }

  .menu-toggle:hover {
    background: rgba(14, 76, 75, 0.06);
  }

  .menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: translateY(4.5px) rotate(45deg);
  }

  .menu-toggle.open span:nth-child(2) {
    transform: translateY(-4.5px) rotate(-45deg);
  }

  /* Hero */
  .hero {
    position: relative;
    min-height: 62vh;
    display: flex;
    align-items: center;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    margin-top: var(--header-height);
  }

  .hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(14, 76, 75, 0.78) 0%, rgba(14, 76, 75, 0.55) 50%, rgba(14, 76, 75, 0.15) 100%);
  }

  .hero .container {
    position: relative;
    z-index: 2;
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
  }

  .hero-breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.2s ease;
  }

  .hero-breadcrumb a:hover {
    color: #FFFFFF;
  }

  .hero-breadcrumb .sep {
    opacity: 0.6;
  }

  .hero-breadcrumb .current {
    color: var(--color-accent);
  }

  .hero h1 {
    max-width: 720px;
    font-size: clamp(32px, 4.2vw, 52px);
    line-height: 1.28;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: #FFFFFF;
    margin-bottom: 18px;
  }

  .hero-subtitle {
    max-width: 640px;
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 36px;
  }

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

  .hero-actions .btn-primary {
    background-color: #FFFFFF;
    color: var(--color-primary);
  }

  .hero-actions .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
  }

  .hero-actions .link-arrow {
    color: rgba(255, 255, 255, 0.92);
  }

  /* Mirror Section */
  .mirror-section {
    padding: var(--space-section) 0;
    background-color: var(--color-bg);
  }

  .mirror-grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 64px;
    align-items: center;
  }

  .mirror-image {
    border-radius: var(--radius-img);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
  }

  .mirror-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 360px;
    transition: transform 0.5s ease;
  }

  .mirror-image:hover img {
    transform: scale(1.02);
  }

  .mirror-content .section-title {
    margin-bottom: 16px;
  }

  .mirror-content p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-text-sub);
    margin-bottom: 24px;
  }

  .mirror-list {
    list-style: none;
    padding: 0;
  }

  .mirror-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
  }

  .mirror-list li:last-child {
    border-bottom: none;
  }

  .mirror-list li::before {
    content: "";
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
    margin-top: 10px;
    flex-shrink: 0;
  }

  /* Data Bar */
  .data-bar-section {
    padding: 56px 0;
    background-color: var(--color-primary);
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
  }

  .data-bar-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.06;
  }

  .data-bar-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
  }

  .data-bar-label {
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 6px;
  }

  .data-bar-title {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.4;
  }

  .data-bar-timeline {
    display: flex;
    align-items: center;
    gap: 28px;
    flex: 1;
    max-width: 640px;
  }

  .data-bar-step {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .data-bar-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-accent);
    flex-shrink: 0;
    position: relative;
  }

  .data-bar-dot::after {
    content: "";
    position: absolute;
    top: -4px;
    left: -4px;
    width: 18px;
    height: 18px;
    border: 1px solid rgba(192, 154, 91, 0.4);
    border-radius: 50%;
  }

  .data-bar-step span {
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
  }

  .data-bar-line {
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    min-width: 20px;
  }

  /* Index Table */
  .index-section {
    padding: var(--space-section) 0;
    background-color: var(--color-surface);
  }

  .index-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
  }

  .index-table-wrap {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
  }

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

  .index-table thead th {
    background-color: var(--color-bg);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--color-text-sub);
    text-align: left;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border);
  }

  .index-table tbody td {
    padding: 18px 24px;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
  }

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

  .index-table tbody tr {
    transition: background 0.2s ease;
  }

  .index-table tbody tr:hover {
    background-color: rgba(246, 244, 238, 0.5);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    color: var(--color-text-sub);
    background-color: var(--color-bg);
    white-space: nowrap;
  }

  .tag-accent {
    border-color: var(--color-accent);
    color: var(--color-primary);
    background-color: var(--color-accent-light);
  }

  /* FAQ */
  .faq-section {
    padding: var(--space-section) 0;
    background-color: var(--color-bg);
  }

  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
  }

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

  .faq-item:first-child {
    border-top: 1px solid var(--color-border);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 4px;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    transition: color 0.2s ease;
  }

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

  .faq-icon {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
  }

  .faq-icon::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    width: 20px;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transform: translateY(-50%);
    transition: opacity 0.2s ease;
  }

  .faq-icon::after {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 20px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transform: translateX(-50%);
    transition: transform 0.3s ease;
  }

  .faq-item.open .faq-icon::after {
    transform: translateX(-50%) rotate(90deg);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.3s ease;
    padding: 0 4px;
  }

  .faq-item.open .faq-answer {
    max-height: 400px;
    padding: 0 4px 24px;
  }

  .faq-answer p {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-text-sub);
  }

  /* CTA */
  .cta-banner {
    padding: 72px 0;
    background-color: var(--color-primary);
    position: relative;
    overflow: hidden;
  }

  .cta-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    opacity: 0.07;
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
  }

  .cta-title {
    font-size: clamp(24px, 2.8vw, 34px);
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1.4;
    max-width: 600px;
  }

  .cta-inner .btn-primary {
    background-color: #FFFFFF;
    color: var(--color-primary);
    flex-shrink: 0;
  }

  .cta-inner .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  }

  /* Footer */
  .site-footer {
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding-top: 64px;
  }

  .footer-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
  }

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

  .footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-text-sub);
    max-width: 320px;
  }

  .footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
  }

  .footer-col ul {
    list-style: none;
    padding: 0;
  }

  .footer-col ul li {
    margin-bottom: 10px;
  }

  .footer-col ul a {
    font-size: 14px;
    color: var(--color-text-sub);
    transition: color 0.2s ease;
  }

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

  .footer-contact li {
    font-size: 14px;
    color: var(--color-text-sub);
  }

  .footer-bottom {
    border-top: 1px solid var(--color-border);
    margin-top: 48px;
  }

  .footer-bottom-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--color-text-sub);
  }

  .footer-bottom-inner a {
    color: var(--color-text-sub);
    transition: color 0.2s ease;
  }

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

  /* Modal */
  .modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(20, 26, 24, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }

  .modal-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  .modal-box {
    width: 520px;
    max-width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    background-color: var(--color-surface);
    border-radius: 16px;
    padding: 40px;
    transform: translateY(8px);
    transition: transform 0.2s ease;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16);
    position: relative;
  }

  .modal-overlay.open .modal-box {
    transform: translateY(0);
  }

  .modal-close {
    position: absolute;
    top: 18px;
    right: 18px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
  }

  .modal-close:hover {
    background: rgba(14, 76, 75, 0.08);
  }

  .modal-close::before,
  .modal-close::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 1.5px;
    background-color: var(--color-text);
    border-radius: 2px;
  }

  .modal-close::before {
    transform: rotate(45deg);
  }

  .modal-close::after {
    transform: rotate(-45deg);
  }

  .modal-box h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .modal-box .modal-desc {
    font-size: 14px;
    color: var(--color-text-sub);
    margin-bottom: 28px;
  }

  .form-group {
    margin-bottom: 18px;
  }

  .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
  }

  .form-group input,
  .form-group select {
    width: 100%;
    height: 48px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    padding: 0 16px;
    background-color: var(--color-surface);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    appearance: none;
    -webkit-appearance: none;
  }

  .form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%230E4C4B' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
  }

  .form-group input:focus,
  .form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    border-width: 2px;
    box-shadow: 0 0 0 3px rgba(14, 76, 75, 0.15);
  }

  .modal-submit {
    width: 100%;
    margin-top: 8px;
  }

  .privacy-note {
    font-size: 12px;
    color: var(--color-text-sub);
    text-align: center;
    margin-top: 14px;
  }

  .privacy-note a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
  }

  /* Responsive */
  @media (max-width: 1199px) {
    .nav-links {
      gap: 20px;
    }
  }

  @media (max-width: 991px) {
    :root {
      --header-height: 64px;
      --space-section: 72px;
    }

    .nav-links {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background-color: rgba(246, 244, 238, 0.97);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--color-border);
      flex-direction: column;
      align-items: stretch;
      gap: 0;
      padding: 0 24px;
    }

    .nav-links.open {
      display: flex;
    }

    .nav-links a {
      padding: 14px 0;
      font-size: 16px;
      border-bottom: 1px solid var(--color-border);
    }

    .nav-links a:last-child {
      border-bottom: none;
    }

    .nav-links a::after {
      display: none;
    }

    .nav-cta {
      margin-left: auto;
    }

    .nav-cta .btn {
      display: none;
    }

    .menu-toggle {
      display: flex;
    }

    .mirror-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .mirror-image img {
      min-height: 280px;
    }

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

  @media (max-width: 767px) {
    .container {
      padding: 0 18px;
    }

    .header-inner {
      padding: 0 18px;
    }

    .hero {
      min-height: 60vh;
    }

    .hero .container {
      padding-top: 56px;
      padding-bottom: 56px;
    }

    .hero h1 {
      font-size: 30px;
    }

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

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

    .hero-actions .btn,
    .hero-actions .link-arrow {
      width: 100%;
      justify-content: center;
    }

    .data-bar-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 28px;
    }

    .data-bar-timeline {
      flex-direction: column;
      align-items: flex-start;
      gap: 16px;
      max-width: 100%;
    }

    .data-bar-line {
      width: 1px;
      height: 16px;
      min-width: auto;
      margin-left: 5px;
    }

    .index-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 16px;
    }

    .index-table {
      display: block;
      overflow-x: auto;
      white-space: nowrap;
    }

    .index-table thead th,
    .index-table tbody td {
      padding: 14px 16px;
    }

    .cta-inner {
      flex-direction: column;
      align-items: flex-start;
    }

    .cta-inner .btn {
      width: 100%;
    }

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

    .footer-bottom-inner {
      flex-direction: column;
      text-align: center;
      gap: 8px;
    }

    .modal-box {
      padding: 32px 24px;
    }
  }

  @media (max-width: 520px) {
    .index-table {
      display: block;
    }

    .index-table table {
      min-width: 480px;
    }

    .section-title {
      font-size: 24px;
    }

    .faq-question {
      font-size: 16px;
    }
  }

/* roulang page: category2 */
:root {
  --primary: #0E4C4B;
  --primary-dark: #093A3A;
  --accent: #C09A5B;
  --bg: #F6F4EE;
  --text: #1B211F;
  --muted: #64706D;
  --line: #E5E0D4;
  --success: #2F6B5C;
  --card-bg: #FFFFFF;
  --radius-card: 14px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --shadow-card: 0 8px 24px rgba(27,33,31,0.06);
  --shadow-hover: 0 12px 32px rgba(14,76,75,0.10);
  --container: 1200px;
  --space-lg: 96px;
  --space-md: 48px;
  --space-sm: 24px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
ul, ol { list-style: none; }
button { font: inherit; border: none; background: none; cursor: pointer; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: rgba(246,244,238,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229,224,212,0.8);
  z-index: 100;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; position: relative; }
.logo { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary);
  position: relative;
  flex-shrink: 0;
}
.logo-mark::after {
  content: '';
  position: absolute;
  left: 10px; top: 4px;
  width: 22px; height: 1px;
  background: var(--accent);
}
.logo-text { font-size: 20px; font-weight: 700; letter-spacing: 0.02em; color: var(--text); white-space: nowrap; }
.logo-text span { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 15px;
  color: #333;
  padding: 10px 2px;
  position: relative;
  transition: color .2s ease;
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 4px;
  width: 45%; height: 2px;
  background: var(--primary);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: opacity .25s ease, transform .25s ease;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 600; }
.nav-links a.active::after { opacity: 1; transform: scaleX(1); }
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: background .18s ease, transform .18s ease, box-shadow .18s ease;
  white-space: nowrap;
}
.header-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(14,76,75,0.18); }
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 8px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { transform: translateY(-4.5px) rotate(-45deg); }

/* Page Hero */
.page-hero {
  position: relative;
  min-height: 540px;
  margin-top: 80px;
  display: flex;
  align-items: center;
  padding: 88px 0;
  background-image: linear-gradient(90deg, rgba(14,76,75,0.80) 0%, rgba(14,76,75,0.42) 52%, rgba(14,76,75,0.10) 100%), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.page-hero::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: rgba(255,255,255,0.18); }
.page-hero .container { position: relative; z-index: 2; width: 100%; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 26px;
}
.hero-badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.page-title {
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.01em;
  max-width: 800px;
  margin-bottom: 18px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.12);
}
.page-subtitle {
  font-size: 18px;
  line-height: 1.75;
  color: rgba(255,255,255,0.88);
  max-width: 640px;
  margin-bottom: 36px;
}
.hero-meta { display: flex; flex-wrap: wrap; gap: 12px 28px; font-size: 14px; color: rgba(255,255,255,0.72); }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta span::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }

/* Long Article */
.long-section { padding: var(--space-lg) 0; }
.long-article { max-width: 860px; margin: 0 auto; }
.article-head { margin-bottom: 40px; }
.article-head .section-eyebrow {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.article-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
  max-width: 700px;
}
.article-intro { font-size: 18px; line-height: 2; color: var(--text); }
.article-intro strong { color: var(--primary); font-weight: 600; }
.content-figure {
  margin: 48px 0;
  border-radius: var(--radius-img);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-card);
}
.content-figure img { width: 100%; height: auto; aspect-ratio: 16 / 8; object-fit: cover; }
.content-figure figcaption { font-size: 13px; color: var(--muted); padding: 12px 18px; border-top: 1px solid var(--line); background: var(--bg); }
.round-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
  position: relative;
}
.round-number {
  font-family: "SF Mono", "Roboto Mono", Menlo, Consolas, monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  line-height: 1.4;
  padding-left: 4px;
  position: relative;
}
.round-number::after {
  content: '';
  position: absolute;
  left: 10px;
  top: 34px;
  bottom: -48px;
  width: 1px;
  background: var(--line);
}
.round-step:last-child .round-number::after { display: none; }
.round-body h3 { font-size: 24px; font-weight: 600; line-height: 1.5; margin-bottom: 12px; color: var(--text); }
.round-body h3 small { font-size: 14px; font-weight: 400; color: var(--muted); margin-left: 10px; letter-spacing: 0.04em; }
.round-body p { font-size: 16px; line-height: 2; color: var(--text); }

/* Quote Block */
.quote-wrap {
  background: #EFECE3;
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  padding: 36px 40px;
  margin: 56px 0;
}
.quote-wrap p {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--text);
}
.quote-wrap p::before { content: '“'; color: var(--accent); font-size: 32px; line-height: 0; }
.quote-wrap p::after { content: '”'; color: var(--accent); font-size: 32px; line-height: 0; }
.quote-wrap cite { display: block; margin-top: 14px; font-size: 14px; font-style: normal; color: var(--muted); }

/* Article Tail */
.article-tail { max-width: 860px; margin: 0 auto; padding-top: 16px; }
.article-tail p { font-size: 16px; line-height: 2; color: var(--text); margin-bottom: 24px; }
.tail-links { display: flex; flex-wrap: wrap; gap: 16px 32px; border-top: 1px solid var(--line); padding-top: 28px; }
.tail-links a { font-size: 15px; color: var(--text); display: inline-flex; align-items: center; gap: 6px; }
.tail-links a i { font-style: normal; color: var(--accent); transition: transform .2s; }
.tail-links a:hover { color: var(--primary); }
.tail-links a:hover i { transform: translateX(3px); }

/* Resource Index */
.resource-section { background: #ECE9E1; padding: var(--space-lg) 0; }
.resource-head { max-width: 820px; margin: 0 auto 44px; text-align: center; }
.resource-head .section-eyebrow {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.resource-head h2 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 700; color: var(--text); margin-bottom: 12px; }
.resource-head p { font-size: 15px; color: var(--muted); max-width: 640px; margin: 0 auto; line-height: 1.8; }
.resource-table-wrap {
  max-width: 880px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow-x: auto;
  box-shadow: var(--shadow-card);
}
.resource-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.resource-table th {
  text-align: left;
  padding: 16px 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  background: #FAF9F5;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.resource-table td {
  padding: 15px 22px;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  vertical-align: middle;
}
.resource-table tr:last-child td { border-bottom: none; }
.resource-table tbody tr { transition: background .18s ease; }
.resource-table tbody tr:hover td { background: #FAF9F5; }
.resource-table td:first-child { font-weight: 600; }
.status-badge {
  display: inline-block;
  font-size: 12px;
  color: var(--success);
  border: 1px solid rgba(47,107,92,0.28);
  background: rgba(47,107,92,0.06);
  padding: 3px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

/* CTA Band */
.cta-band { background: var(--primary); padding: 72px 0; position: relative; overflow: hidden; }
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  opacity: 0.08;
}
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}
.cta-text h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
.cta-text p { color: rgba(255,255,255,0.8); font-size: 15px; line-height: 1.8; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 40px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  transition: all .2s ease;
  white-space: nowrap;
}
.cta-btn:hover { background: #EFECE3; transform: translateY(-1px); box-shadow: 0 10px 24px rgba(0,0,0,0.12); }

/* Footer */
.site-footer { background: var(--bg); border-top: 1px solid var(--line); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2.2fr 1fr 1fr 1.3fr; gap: 48px; padding-bottom: 44px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: var(--muted); line-height: 1.9; max-width: 300px; }
.footer-col h4 { font-size: 14px; font-weight: 600; margin-bottom: 18px; color: var(--text); letter-spacing: 0.04em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: var(--muted); transition: color .2s ease; }
.footer-col ul a:hover { color: var(--primary); }
.footer-contact li { font-size: 14px; color: var(--muted); line-height: 1.9; }
.footer-bottom { border-top: 1px solid var(--line); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px 24px; font-size: 13px; color: var(--muted); }
.footer-bottom-inner a { color: var(--muted); transition: color .2s; }
.footer-bottom-inner a:hover { color: var(--primary); }

/* Responsive */
@media (max-width: 1024px) {
  .nav-links { gap: 18px; }
  .footer-grid { grid-template-columns: 1.6fr 1fr 1fr; }
  .footer-col:last-child { grid-column: span 2; }
}
@media (max-width: 768px) {
  .site-header { height: 64px; }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: rgba(246,244,238,0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; width: 100%; padding: 14px 0; border-bottom: 1px solid rgba(229,224,212,0.6); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-links a::after { display: none; }
  .page-hero { min-height: 440px; margin-top: 64px; padding: 60px 0; }
  .page-hero .container { padding: 0 18px; }
  .page-title { font-size: clamp(28px, 6vw, 40px); }
  .page-subtitle { font-size: 16px; }
  .hero-meta { flex-direction: column; gap: 8px; }
  .long-section { padding: 56px 0; }
  .long-article { padding: 0 4px; }
  .article-head h2 { font-size: 24px; }
  .article-intro { font-size: 16px; }
  .round-step { grid-template-columns: 1fr; gap: 14px; padding-top: 32px; margin-top: 36px; }
  .round-number::after { display: none; }
  .round-number { padding-left: 0; }
  .round-body h3 { font-size: 20px; }
  .quote-wrap { padding: 26px 24px; margin: 40px 0; }
  .quote-wrap p { font-size: 17px; }
  .resource-section { padding: 56px 0; }
  .resource-head h2 { font-size: 24px; }
  .resource-table-wrap { border-radius: 10px; }
  .resource-table th, .resource-table td { padding: 12px 16px; font-size: 14px; }
  .cta-band { padding: 52px 0; }
  .cta-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .cta-btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-col:last-child { grid-column: span 1; }
  .footer-bottom-inner { flex-direction: column; gap: 6px; }
  .footer-bottom-inner span { display: block; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .logo-text { font-size: 18px; }
  .page-hero { min-height: 380px; }
  .hero-badge { font-size: 12px; }
  .round-body p { font-size: 15px; }
  .resource-table { min-width: 560px; }
  .footer-grid { gap: 24px; }
}

/* roulang page: category1 */
:root{
  --color-primary:#0E4C4B;
  --color-primary-dark:#093A3A;
  --color-accent:#C09A5B;
  --color-bg:#F6F4EE;
  --color-bg-soft:#EFECE4;
  --color-text:#1B211F;
  --color-text-secondary:#64706D;
  --color-border:#E5E0D4;
  --color-data:#2F6B5C;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-img:12px;
  --shadow-card:0 8px 24px rgba(27,33,31,0.06);
  --shadow-card-hover:0 12px 32px rgba(14,76,75,0.10);
  --transition:180ms ease;
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;
  background:var(--color-primary);color:#fff;
  border:none;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:all var(--transition);
  white-space:nowrap;
}
.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);}
.btn-primary.btn-lg{height:52px;padding:0 36px;font-size:16px;}
.btn-primary.btn-light{background:#fff;color:var(--color-primary);}
.btn-primary.btn-light:hover{background:rgba(255,255,255,0.92);color:var(--color-primary-dark);}
.btn-primary.btn-block{width:100%;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;
  background:transparent;color:var(--color-primary);
  border:1px solid var(--color-primary);border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:all var(--transition);
  white-space:nowrap;
}
.btn-outline:hover{background:rgba(14,76,75,0.06);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--color-primary);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;
  transition:all var(--transition);
}
.text-link:hover{border-bottom-color:var(--color-primary);}
.text-link span{transition:transform var(--transition);}
.text-link:hover span{transform:translateX(4px);}

.section-label{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:0.1em;
  color:var(--color-primary);
  background:rgba(14,76,75,0.08);
  padding:4px 14px;border-radius:999px;
  margin-bottom:16px;
}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3vw,36px);line-height:1.35;font-weight:700;}

.site-header{
  position:fixed;top:0;left:0;right:0;height:80px;
  background:rgba(246,244,238,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--color-border);
  z-index:1000;
}
.header-inner{
  max-width:var(--container);height:100%;margin:0 auto;
  padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:24px;height:24px;border:2px solid var(--color-primary);
  border-radius:50%;position:relative;flex-shrink:0;
}
.logo-mark::after{
  content:'';position:absolute;width:7px;height:7px;
  background:var(--color-accent);border-radius:50%;
  top:50%;left:50%;transform:translate(-50%,-50%);
}
.logo-text{font-size:21px;font-weight:700;letter-spacing:0.02em;color:var(--color-text);line-height:1.2;}
.logo-text span{color:var(--color-primary);}
.nav-links{display:flex;gap:32px;align-items:center;}
.nav-links a{
  font-size:15px;color:#333;position:relative;padding:8px 0;
  transition:color var(--transition);font-weight:400;
}
.nav-links a:hover{color:var(--color-primary);}
.nav-links a.active{color:var(--color-primary);font-weight:600;}
.nav-links a.active::after{
  content:'';position:absolute;left:0;bottom:-2px;
  width:45%;height:2px;background:var(--color-primary);border-radius:2px;
}
.nav-cta{margin-left:4px;height:42px;padding:0 22px;font-size:14px;}
.hamburger{
  display:none;width:42px;height:42px;
  position:relative;z-index:1001;
  border:none;background:transparent;
}
.hamburger span{
  position:absolute;left:9px;width:24px;height:2px;
  background:var(--color-text);border-radius:2px;
  transition:all 0.3s ease;
}
.hamburger span:nth-child(1){top:18px;}
.hamburger span:nth-child(2){top:24px;}
.hamburger.open span:nth-child(1){top:21px;transform:rotate(45deg);}
.hamburger.open span:nth-child(2){top:21px;transform:rotate(-45deg);}

.page-hero{
  position:relative;min-height:52vh;
  display:flex;align-items:center;
  padding:140px 0 80px;
  overflow:hidden;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
}
.page-hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,76,75,0.88),rgba(14,76,75,0.45) 55%,rgba(14,76,75,0.10));
}
.page-hero-content{position:relative;z-index:2;max-width:720px;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,0.8);
  margin-bottom:28px;
}
.breadcrumb a{color:rgba(255,255,255,0.8);transition:color var(--transition);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb-sep{color:rgba(255,255,255,0.5);}
.breadcrumb-current{color:#fff;font-weight:500;}
.page-hero h1{
  font-size:clamp(34px,4.5vw,56px);
  line-height:1.25;font-weight:700;
  color:#fff;letter-spacing:0.01em;
  margin-bottom:20px;
}
.page-hero p{
  font-size:17px;line-height:1.8;
  color:rgba(255,255,255,0.9);
  margin-bottom:36px;max-width:560px;
}
.page-hero-bottom{
  position:absolute;bottom:0;left:0;right:0;
  height:1px;background:rgba(255,255,255,0.2);
}

.about-block{background:#fff;padding:96px 0;}
.about-grid{
  display:grid;grid-template-columns:7fr 5fr;
  gap:64px;align-items:center;
}
.about-text .section-label{margin-bottom:12px;}
.about-text h2{
  font-size:clamp(26px,3vw,36px);line-height:1.35;font-weight:700;
  margin-bottom:24px;
}
.about-text p{
  color:var(--color-text-secondary);
  font-size:16px;line-height:1.9;
  margin-bottom:20px;
}
.about-text .text-link{margin-top:8px;}
.about-image{position:relative;}
.about-image img{
  width:100%;border-radius:var(--radius-img);
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-card);
}
.about-badge{
  position:absolute;bottom:24px;left:-20px;
  background:var(--color-primary);color:#fff;
  border-radius:var(--radius-card);
  padding:18px 24px;
  box-shadow:0 8px 24px rgba(14,76,75,0.25);
  display:flex;flex-direction:column;align-items:flex-start;
}
.about-badge strong{font-size:32px;font-weight:700;line-height:1.2;}
.about-badge span{font-size:13px;opacity:0.85;margin-top:2px;}

.business-section{padding:96px 0;}
.business-grid{
  display:grid;grid-template-columns:1.5fr 1fr;
  gap:24px;
}
.business-card{
  background:#fff;border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  padding:28px;
  position:relative;
  box-shadow:var(--shadow-card);
  transition:box-shadow var(--transition),transform var(--transition);
  display:flex;flex-direction:column;
  overflow:hidden;
}
.business-card::before{
  content:'';position:absolute;top:0;left:0;right:0;
  height:2px;background:var(--color-primary);
  transform:scaleX(0);transform-origin:left;
  transition:transform 0.3s ease;
}
.business-card:hover::before{transform:scaleX(1);}
.business-card:hover{
  box-shadow:var(--shadow-card-hover);
  transform:translateY(-2px);
}
.business-card-main{grid-row:span 2;}
.card-top{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:24px;
}
.card-num{
  font-size:28px;font-weight:700;color:var(--color-primary);
  font-family:"SF Mono","Menlo",monospace;
  line-height:1;
}
.card-tag{
  font-size:12px;color:var(--color-text-secondary);
  border:1px solid var(--color-border);
  border-radius:999px;padding:2px 12px;
  letter-spacing:0.05em;
}
.business-card h3{
  font-size:clamp(20px,2vw,24px);
  font-weight:600;line-height:1.5;
  margin-bottom:14px;
}
.business-card p{
  color:var(--color-text-secondary);
  font-size:15px;line-height:1.8;
  margin-bottom:24px;flex-grow:1;
}
.business-card-main p{font-size:16px;}
.card-link{
  color:var(--color-primary);font-weight:600;font-size:14px;
  display:inline-flex;align-items:center;gap:6px;
  transition:gap var(--transition);
}
.card-link:hover{gap:10px;}

.process-section{background:#fff;padding:96px 0;}
.process-steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:32px;position:relative;
}
.process-step{position:relative;}
.process-step:not(:last-child)::after{
  content:'';position:absolute;top:24px;right:-16px;
  width:32px;height:1px;background:var(--color-border);
}
.step-num{
  display:inline-block;
  font-size:14px;font-weight:700;color:var(--color-primary);
  letter-spacing:0.08em;
  font-family:"SF Mono","Menlo",monospace;
  padding:4px 10px;
  border-bottom:2px solid var(--color-primary);
  margin-bottom:20px;
}
.process-step h3{
  font-size:20px;font-weight:600;line-height:1.5;
  margin-bottom:10px;
}
.process-step p{
  color:var(--color-text-secondary);
  font-size:15px;line-height:1.8;
}

.metrics-section{
  background:var(--color-bg-soft);
  padding:72px 0;
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;
}
.metric-item{
  text-align:center;padding:24px 16px;
  position:relative;
}
.metric-item:not(:last-child)::after{
  content:'';position:absolute;top:50%;right:0;
  width:1px;height:48px;
  background:var(--color-border);
  transform:translateY(-50%);
}
.metric-item strong{
  font-size:clamp(44px,3vw,56px);font-weight:700;
  color:var(--color-primary);line-height:1.2;
  display:block;
  font-family:"SF Mono","Menlo",monospace;
}
.metric-item span{
  font-size:14px;color:var(--color-text-secondary);
  margin-top:6px;display:block;letter-spacing:0.05em;
}

.faq-section{background:#fff;padding:96px 0;}
.faq-container{max-width:860px;margin:0 auto;}
.faq-container .section-head{text-align:center;margin-left:auto;margin-right:auto;}
.faq-list{margin-top:40px;}
.faq-item{border-bottom:1px solid var(--color-border);}
.faq-item:first-child{border-top:1px solid var(--color-border);}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:24px 0;text-align:left;
  font-size:18px;font-weight:600;color:var(--color-text);
  background:none;border:none;
  transition:color var(--transition);
}
.faq-question:hover{color:var(--color-primary);}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;margin-left:20px;
}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:var(--color-primary);
  transition:transform 0.3s ease;
}
.faq-icon::before{width:14px;height:2px;top:9px;left:3px;}
.faq-icon::after{width:2px;height:14px;top:3px;left:9px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height 0.35s ease;
}
.faq-answer p{
  padding:0 0 24px;
  color:var(--color-text-secondary);
  font-size:16px;line-height:1.8;
}

.cta-banner{
  background:var(--color-primary);
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:0.08;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
}
.cta-inner h2{
  color:#fff;font-size:clamp(26px,3vw,36px);
  line-height:1.35;font-weight:700;
  max-width:560px;
}
.cta-inner .btn-primary{flex-shrink:0;height:52px;padding:0 36px;}

.site-footer{
  background:var(--color-bg);
  border-top:1px solid var(--color-border);
  padding:72px 0 0;
}
.footer-grid{
  max-width:var(--container);
  margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{font-size:20px;}
.footer-brand p{
  color:var(--color-text-secondary);font-size:14px;line-height:1.8;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;font-weight:600;
  color:var(--color-text);
  margin-bottom:16px;
  letter-spacing:0.05em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  color:var(--color-text-secondary);font-size:14px;
  transition:color var(--transition);
}
.footer-col ul a:hover{color:var(--color-primary);}
.footer-contact li{
  color:var(--color-text-secondary);font-size:14px;
}
.footer-bottom{
  border-top:1px solid var(--color-border);
  margin-top:56px;
  padding:20px 0;
}
.footer-bottom-inner{
  max-width:var(--container);
  margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--color-text-secondary);
}
.footer-bottom-inner a{
  color:var(--color-text-secondary);
  transition:color var(--transition);
}
.footer-bottom-inner a:hover{color:var(--color-primary);}

.modal-overlay{
  position:fixed;inset:0;z-index:2000;
  background:rgba(20,26,24,0.5);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;
  transition:opacity 200ms ease,visibility 200ms ease;
  padding:20px;
}
.modal-overlay.show{opacity:1;visibility:visible;}
.modal{
  background:#fff;border-radius:16px;
  width:100%;max-width:520px;
  max-height:90vh;overflow-y:auto;
  padding:40px;
  position:relative;
  box-shadow:0 24px 64px rgba(20,26,24,0.2);
  transform:translateY(8px);
  transition:transform 200ms ease;
}
.modal-overlay.show .modal{transform:translateY(0);}
.modal-close{
  position:absolute;top:16px;right:16px;
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--color-text-secondary);
  background:none;border:none;line-height:1;
  transition:color var(--transition);
}
.modal-close:hover{color:var(--color-text);}
.modal h3{
  font-size:24px;font-weight:700;
  margin-bottom:8px;
}
.modal>p{
  color:var(--color-text-secondary);font-size:14px;
  margin-bottom:28px;
}
.form-group{margin-bottom:18px;}
.form-group label{
  display:block;font-size:14px;font-weight:600;
  margin-bottom:6px;color:var(--color-text);
}
.form-group input,.form-group select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--color-border);
  border-radius:var(--radius-btn);
  background:#fff;color:var(--color-text);
  transition:border-color var(--transition),box-shadow var(--transition);
}
.form-group input:focus,.form-group select:focus{
  outline:none;border-color:var(--color-primary);
  box-shadow:0 0 0 3px rgba(14,76,75,0.15);
}
.form-group select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364706D' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
}
.privacy-note{
  font-size:12px;color:var(--color-text-secondary);
  text-align:center;margin-top:16px;
}
.privacy-note a{color:var(--color-primary);}
.privacy-note a:hover{text-decoration:underline;}

@media (max-width:1024px){
  .nav-links{gap:20px;}
  .nav-links a{font-size:14px;}
  .about-grid{gap:40px;grid-template-columns:1fr 1fr;}
  .business-grid{grid-template-columns:1fr 1fr;}
  .business-card-main{grid-row:auto;}
  .process-steps{gap:20px;}
  .process-step:not(:last-child)::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:900px){
  .nav-links{
    position:absolute;top:80px;left:0;right:0;
    flex-direction:column;gap:0;
    background:rgba(246,244,238,0.98);
    border-bottom:1px solid var(--color-border);
    max-height:0;overflow:hidden;
    transition:max-height 0.35s ease;
    box-shadow:0 12px 32px rgba(27,33,31,0.06);
  }
  .nav-links.open{max-height:360px;}
  .nav-links a{
    width:100%;text-align:center;
    padding:16px 0;border-bottom:1px solid var(--color-border);
    font-size:15px;
  }
  .nav-links a:last-child{border-bottom:none;}
  .nav-links a.active::after{display:none;}
  .nav-links a.active{background:rgba(14,76,75,0.06);}
  .nav-cta{display:none;}
  .hamburger{display:block;}
}

@media (max-width:767px){
  .site-header{height:64px;}
  .header-inner{padding:0 18px;}
  .nav-links{top:64px;}
  .logo-text{font-size:19px;}
  .page-hero{min-height:60vh;padding:110px 0 56px;}
  .page-hero h1{font-size:clamp(30px,7vw,40px);}
  .page-hero p{font-size:16px;}
  .about-block,.business-section,.process-section,.faq-section{padding:56px 0;}
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .about-image img{max-height:320px;object-fit:cover;}
  .about-badge{left:12px;bottom:12px;padding:14px 18px;}
  .about-badge strong{font-size:26px;}
  .business-grid{grid-template-columns:1fr;}
  .process-steps{grid-template-columns:1fr;gap:20px;}
  .process-step{padding-left:44px;}
  .process-step:not(:last-child)::after{display:none;}
  .process-step::before{
    content:'';position:absolute;left:14px;top:40px;
    width:1px;height:calc(100% - 16px);
    background:var(--color-border);
  }
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:16px 0;}
  .metric-item:nth-child(2)::after{display:none;}
  .metric-item strong{font-size:34px;}
  .cta-banner{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .cta-inner .btn-primary{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom-inner{flex-direction:column;align-items:center;text-align:center;}
  .modal{padding:32px 24px;}
}

@media (max-width:520px){
  .container{padding:0 18px;}
  .metrics-grid{grid-template-columns:1fr 1fr;}
  .metric-item strong{font-size:32px;}
  .faq-question{font-size:16px;padding:20px 0;}
}