/* roulang page: index */
:root {
  --primary: #2563EB;
  --primary-hover: #3B82F6;
  --primary-deep: #1D4ED8;
  --primary-soft: #EFF4FF;
  --gold: #C79A4C;
  --gold-soft: #F5EDDE;
  --bg-body: #F6F8FB;
  --bg-card: #FFFFFF;
  --bg-block: #EEF2F7;
  --bg-dark: #1E3A8A;
  --text-main: #1E2A38;
  --text-sub: #5A6D7F;
  --text-light: #8A99A8;
  --text-white: #FFFFFF;
  --border: #E6EBF2;
  --radius-lg: 16px;
  --radius-md: 8px;
  --radius-pill: 20px;
  --shadow-card: 0 4px 20px rgba(30,42,56,.06);
  --shadow-hover: 0 12px 32px rgba(30,42,56,.10);
  --shadow-btn: 0 4px 14px rgba(37,99,235,.20);
  --font-stack: "PingFang SC", "HONOR Sans", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --space-section: 96px;
  --container-w: 1240px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-stack);
  background: var(--bg-body);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.75;
  overflow-x: hidden;
}
.container { max-width: var(--container-w); padding-left: 24px; padding-right: 24px; }
@media (min-width: 1400px) {
  .container { max-width: var(--container-w); }
}
a { text-decoration: none; color: inherit; transition: color .2s ease; }
a:hover { color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ========== 按钮 ========== */
.btn {
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 15px;
  padding: 12px 26px;
  transition: all .25s ease;
  line-height: 1.4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn-lg { padding: 15px 32px; font-size: 16px; border-radius: 10px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-btn);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
  transform: translateY(-2px);
}
.btn-primary:focus, .btn-outline:focus, .btn-light:focus { box-shadow: 0 0 0 4px rgba(37,99,235,.15); outline: none; }
.btn-outline {
  background: #fff;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}
.btn-light:hover { background: var(--primary-soft); color: var(--primary); transform: translateY(-2px); }
.text-link {
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .2s ease;
}
.text-link i { transition: transform .2s ease; }
.text-link:hover { color: var(--primary-deep); }
.text-link:hover i { transform: translateX(4px); }

/* ========== 标签/徽章 ========== */
.tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
}
.tag-primary { background: var(--primary-soft); color: var(--primary); }
.tag-gold { background: var(--gold-soft); color: var(--gold); }
.tag-gray { background: var(--bg-block); color: var(--text-sub); }
.tag-cloud-item {
  background: var(--bg-block);
  color: var(--text-sub);
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 500;
  transition: background .2s, color .2s, transform .2s;
  display: inline-block;
}
.tag-cloud-item:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(246, 248, 251, .92);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.site-header.scrolled {
  background: #fff;
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(30,42,56,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  min-height: 80px;
}
.header-left { flex: 1; display: flex; justify-content: flex-start; align-items: center; }
.header-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.header-right {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
  white-space: nowrap;
}
.logo-badge {
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .5px;
}
.header-nav { display: flex; align-items: center; gap: 30px; }
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  position: relative;
  padding: 8px 0;
  transition: color .2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .25s ease;
  transform-origin: left center;
}
.nav-link:hover, .nav-link.active { color: var(--primary); }
.nav-link.active::after, .nav-link:hover::after { transform: scaleX(1); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  transition: background .2s ease;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-main);
  transition: all .3s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--primary); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--primary); }
.mobile-menu {
  display: none;
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(30,42,56,.08);
  padding: 16px 24px 24px;
}
.mobile-menu.open { display: block; }
.mobile-nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-link {
  padding: 12px 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
  border-bottom: 1px solid var(--bg-block);
  transition: color .2s, background .2s;
  border-radius: var(--radius-md);
}
.mobile-link:hover, .mobile-link.active { color: var(--primary); background: var(--primary-soft); }
.mobile-cta { margin-top: 14px; }

/* ========== Hero ========== */
.hero-section {
  position: relative;
  padding: 40px 0 64px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #F6F8FB 0%, rgba(255,255,255,.92) 50%, rgba(246,248,251,.75) 100%);
  z-index: 0;
}
.hero-section .container { position: relative; z-index: 1; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
}
.hero-badge i { font-size: 14px; }
.hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 20px;
}
.hero-title .text-primary { color: var(--primary); }
.hero-sub {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 20px; }
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-sub);
}
.hero-trust span i { color: var(--primary); }
.hero-visual { position: relative; }
.hero-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(30,42,56,.12);
}
.hero-float-card {
  position: absolute;
  left: -20px;
  bottom: 24px;
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: var(--shadow-hover);
  display: flex;
  align-items: center;
  gap: 12px;
}
.float-num { font-size: 26px; font-weight: 800; color: var(--primary); line-height: 1; }
.float-num span { color: var(--gold); }
.float-label { font-size: 13px; color: var(--text-sub); line-height: 1.4; }

/* ========== Section Head ========== */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 48px;
}
.section-head.center {
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
}
.section-tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: .5px;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
  margin-bottom: 6px;
}
.section-head p { color: var(--text-sub); font-size: 15px; }
.section-head .section-sub { color: var(--text-sub); font-size: 15px; max-width: 560px; }

/* ========== 痛点区 ========== */
.pain-section { background: #fff; padding: var(--space-section) 0; }
.pain-card {
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  height: 100%;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.pain-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .3s ease;
  transform-origin: left;
}
.pain-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37,99,235,.2);
}
.pain-card:hover::before { transform: scaleX(1); }
.pain-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 10px;
  font-size: 18px;
  margin-bottom: 18px;
}
.pain-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.6;
}

/* ========== 方案区 ========== */
.solution-section { background: var(--bg-body); padding: var(--space-section) 0; }
.solution-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
  height: 100%;
  overflow: hidden;
}
.solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .35s ease;
  transform-origin: left center;
}
.solution-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(37,99,235,.25);
}
.solution-card:hover::before { transform: scaleX(1); }
.solution-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 18px;
}
.solution-num {
  position: absolute;
  top: 18px;
  right: 18px;
  background: var(--gold-soft);
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: var(--radius-pill);
}
.solution-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  padding-right: 36px;
}
.solution-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 16px;
}
.solution-card-h { display: flex; gap: 20px; align-items: flex-start; }
.solution-card-h .solution-icon { flex-shrink: 0; margin-bottom: 0; }
.solution-wide {
  background: linear-gradient(120deg, var(--primary-soft), #fff 60%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.solution-wide .solution-wide-text { flex: 1; min-width: 280px; }
.solution-wide h3 { padding-right: 0; }
.solution-wide .solution-icon { margin-bottom: 0; }

/* ========== 数据带 ========== */
.stats-section {
  background: var(--bg-dark);
  padding: 64px 0;
}
.stats-grid { display: flex; justify-content: space-between; gap: 24px; }
.stat-item {
  flex: 1;
  text-align: center;
  border-left: 1px solid rgba(255,255,255,.2);
  padding: 16px 8px;
}
.stat-item:first-child { border-left: none; }
.stat-number {
  font-size: 60px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-unit { color: var(--gold); font-size: 32px; font-weight: 700; margin-left: 2px; }
.stat-label { color: rgba(255,255,255,.85); font-size: 15px; margin-top: 6px; }

/* ========== 最新信息 ========== */
.news-section { background: #fff; padding: var(--space-section) 0; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
  display: flex;
  gap: 20px;
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all .3s ease;
}
.news-item:hover {
  border-color: rgba(37,99,235,.25);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.news-item-main { flex: 1; }
.news-meta { display: flex; align-items: center; gap: 16px; margin-bottom: 10px; }
.news-date { font-size: 13px; color: var(--text-light); }
.news-date i { margin-right: 4px; }
.news-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 8px;
}
.news-title a { color: var(--text-main); transition: color .2s; }
.news-title a:hover { color: var(--primary); }
.news-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-sidebar { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 100px; }
.side-card {
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.side-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.side-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 180px;
}
.side-banner img { width: 100%; height: 220px; object-fit: cover; }
.side-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(30,42,56,.65), rgba(30,42,56,.1));
}
.side-banner-content { position: absolute; left: 20px; right: 20px; bottom: 20px; z-index: 2; }
.side-banner-content h4 { color: #fff; font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.side-banner-content p { color: rgba(255,255,255,.9); font-size: 13px; margin-bottom: 10px; }
.empty-state {
  background: var(--bg-body);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-light);
}
.empty-icon { font-size: 36px; margin-bottom: 12px; color: var(--text-light); }
.empty-state p { font-size: 15px; }

/* ========== CTA / 表单 ========== */
.cta-section { background: var(--bg-body); padding: var(--space-section) 0; }
.cta-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  border: 1px solid var(--border);
}
.cta-left h2 { font-size: 28px; font-weight: 700; color: var(--text-main); margin-bottom: 14px; }
.cta-left > p { color: var(--text-sub); font-size: 15px; margin-bottom: 28px; }
.contact-list { display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-main); }
.contact-list li i { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: var(--primary-soft); color: var(--primary); border-radius: 10px; font-size: 15px; }
.cta-right .form-control, .cta-right .form-select {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-main);
  background-color: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.cta-right .form-control:focus, .cta-right .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
  outline: none;
}
.cta-right .form-control::placeholder, .cta-right .form-select::placeholder { color: var(--text-light); }
.form-privacy {
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
  margin-top: 16px;
}
.form-success {
  background: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #047857;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 14px;
  margin-top: 16px;
  display: none;
}

/* ========== FAQ ========== */
.faq-section { background: #fff; padding: var(--space-section) 0; }
.faq-wrap { max-width: 860px; margin: 0 auto; }
.accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-lg) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: #fff;
}
.accordion-button {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text-main);
  background: #fff;
  border: none;
  transition: color .2s, background .2s;
}
.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: var(--primary-soft);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: none; border-color: transparent; }
.accordion-button::after {
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  content: '\f067';
  background-image: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform .3s ease;
}
.accordion-button:not(.collapsed)::after { content: '\f068'; transform: rotate(180deg); }
.accordion-body { padding: 0 24px 24px; color: var(--text-sub); line-height: 1.75; font-size: 15px; }

/* ========== 隐私说明 ========== */
.privacy-section {
  background: var(--bg-block);
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
}
.privacy-section::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 45%;
  background: url('/assets/images/coverpic/cover-8.png') center/cover no-repeat;
  opacity: .08;
  z-index: 0;
}
.privacy-section .container { position: relative; z-index: 1; }
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.privacy-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all .3s ease;
}
.privacy-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.privacy-item i {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 50%;
  font-size: 20px;
  margin: 0 auto 16px;
}
.privacy-item h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.privacy-item p { font-size: 14px; color: var(--text-sub); line-height: 1.65; }

/* ========== Footer ========== */
.site-footer {
  background: #1A2740;
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr .8fr 1fr .9fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-logo {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.footer-logo .logo-badge { font-size: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,.65); }
.site-footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-links ul, .footer-contact ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-contact li { font-size: 14px; color: rgba(255,255,255,.65); transition: color .2s; }
.footer-links a:hover { color: var(--primary-hover); }
.footer-qr .qr-placeholder {
  width: 96px;
  height: 96px;
  background: #fff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 34px;
  margin-bottom: 10px;
}
.footer-qr p { font-size: 13px; color: rgba(255,255,255,.55); }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,.45);
}

/* ========== 悬浮按钮 & Modal ========== */
.float-contact {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(37,99,235,.35);
  z-index: 999;
  transition: all .3s ease;
  border: 2px solid rgba(255,255,255,.3);
}
.float-contact:hover { transform: translateY(-3px); background: var(--primary-hover); }
.modal-content { border-radius: var(--radius-lg); border: none; box-shadow: var(--shadow-hover); }
.modal-header { border-bottom: 1px solid var(--border); padding: 20px 24px; }
.modal-body { padding: 24px; }
.modal-backdrop { background: rgba(23,35,52,.45); }
.btn-close:focus { box-shadow: none; }

/* ========== 响应式 ========== */
@media (max-width: 1199.98px) {
  .hero-title { font-size: 34px; }
  .stat-number { font-size: 50px; }
  .container { padding-left: 20px; padding-right: 20px; }
}
@media (max-width: 991.98px) {
  :root { --space-section: 72px; }
  .header-left { display: none; }
  .header-center { position: static; transform: none; margin-right: auto; }
  .header-right { display: flex; justify-content: flex-end; gap: 14px; }
  .header-right .header-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-inner { min-height: 68px; }
  .header-logo { font-size: 20px; }
  .btn-header { display: none; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-section { min-height: 0; padding-bottom: 48px; }
  .hero-visual { max-width: 560px; margin: 0 auto; }
  .hero-img { height: 320px; }
  .stats-grid { flex-wrap: wrap; }
  .stat-item { flex: 0 0 50%; border-left: none; padding: 12px 8px; }
  .stat-number { font-size: 44px; }
  .cta-wrap { grid-template-columns: 1fr; gap: 36px; padding: 32px; }
  .privacy-grid { grid-template-columns: 1fr; gap: 16px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .solution-wide { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767.98px) {
  :root { --space-section: 64px; }
  .hero-title { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-head.center { align-items: center; text-align: center; }
  .section-head h2 { font-size: 24px; }
  .cta-wrap { padding: 24px; }
  .contact-list li { font-size: 14px; }
  .news-item { padding: 18px; }
  .news-title { font-size: 17px; }
  .stat-number { font-size: 40px; }
  .float-contact { right: 16px; bottom: 16px; width: 50px; height: 50px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .hero-float-card { left: 12px; bottom: 12px; padding: 12px 16px; }
  .float-num { font-size: 22px; }
}
@media (max-width: 575.98px) {
  .hero-actions .btn { flex: 1; }
  .pain-card h3 { font-size: 15px; }
  .accordion-button { font-size: 15px; padding: 16px 20px; }
  .accordion-body { padding: 0 20px 20px; }
  .stat-number { font-size: 36px; }
  .stat-unit { font-size: 24px; }
  .stats-grid { gap: 8px; }
}

/* roulang page: article */
:root {
            --primary: #2563EB;
            --primary-light: #EFF4FF;
            --accent: #C79A4C;
            --bg: #F6F8FB;
            --card-bg: #FFFFFF;
            --section-bg: #EEF2F7;
            --text-main: #1E2A38;
            --text-secondary: #5A6D7F;
            --text-muted: #8A99A8;
            --border: #E6EBF2;
            --shadow-sm: 0 4px 20px rgba(30,42,56,.06);
            --shadow-lg: 0 12px 32px rgba(30,42,56,.10);
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-pill: 50rem;
            --transition: all .3s ease;
        }

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

        body {
            margin: 0;
            font-family: "PingFang SC", "HONOR Sans", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary);
            opacity: .85;
        }

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(30,42,56,.04);
        }

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

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: .5px;
        }

        .header-center:hover {
            color: var(--primary);
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 800;
            letter-spacing: .5px;
        }

        .header-nav {
            list-style: none;
            display: flex;
            gap: 20px;
            margin: 0;
            padding: 0;
        }

        .header-nav .nav-link {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 2px;
            position: relative;
            transition: var(--transition);
            border-bottom: 2px solid transparent;
        }

        .header-nav .nav-link:hover {
            color: var(--text-main);
        }

        .header-nav .nav-link.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .btn-header {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
            border-radius: var(--radius-md);
            background: var(--primary);
            border: none;
            color: #fff;
            box-shadow: 0 4px 14px rgba(37,99,235,.2);
            transition: var(--transition);
        }

        .btn-header:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: transparent;
            border-radius: var(--radius-md);
            padding: 8px;
            cursor: pointer;
        }

        .nav-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 76px;
            left: 0;
            right: 0;
            background: #fff;
            padding: 20px 24px 24px;
            box-shadow: 0 20px 40px rgba(30,42,56,.1);
            border-bottom: 1px solid var(--border);
            z-index: 999;
        }

        .mobile-menu.show {
            display: block;
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .mobile-link {
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }

        .mobile-link.active {
            color: var(--primary);
        }

        .mobile-cta {
            margin-top: 8px;
            text-align: center;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-wrap {
            padding: 24px 0 8px;
            background: transparent;
        }

        .breadcrumb-custom {
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
        }

        .breadcrumb-custom a:hover {
            color: var(--primary);
        }

        .breadcrumb-custom .sep {
            margin: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumb-custom .current {
            color: var(--text-main);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 240px;
            display: inline-block;
            vertical-align: middle;
        }

        /* ========== Article Header ========== */
        .article-header {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 48px;
            margin-bottom: 32px;
            border: 1px solid var(--border);
        }

        .article-category {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
        }

        .article-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-main);
            margin: 0 0 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        .article-summary {
            margin-top: 24px;
            padding: 20px 24px;
            background: var(--bg);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-secondary);
            font-style: normal;
        }

        /* ========== Article Content ========== */
        .article-main {
            max-width: 768px;
            margin: 0 auto 32px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 48px;
            border: 1px solid var(--border);
        }

        .article-content {
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.9;
            word-break: break-word;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: var(--text-main);
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--text-main);
        }

        .article-content p {
            margin: 0 0 24px;
        }

        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 24px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            color: var(--text-secondary);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }

        .article-content table tr:nth-child(even) {
            background-color: var(--bg);
        }

        .article-content ul {
            margin: 0 0 24px;
            padding-left: 20px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        /* ========== Tags & Pager ========== */
        .article-tags {
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            transition: var(--transition);
        }

        .tag-item:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(37,99,235,.3);
        }

        .article-pager {
            display: flex;
            justify-content: space-between;
            margin-top: 32px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .pager-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--primary);
            transition: var(--transition);
        }

        .pager-link:hover {
            opacity: .8;
            transform: translateX(-2px);
        }

        .pager-link.next:hover {
            transform: translateX(2px);
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--section-bg);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .btn-back:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(37,99,235,.3);
        }

        /* ========== Related Posts ========== */
        .related-section {
            max-width: 1240px;
            margin: 0 auto 80px;
        }

        .section-title-wrap {
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
        }

        .related-card {
            display: flex;
            align-items: center;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 16px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }

        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(37,99,235,.35);
        }

        .related-thumb {
            flex-shrink: 0;
            width: 140px;
            height: 96px;
            border-radius: 12px;
            overflow: hidden;
            margin-right: 18px;
            background: var(--section-bg);
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-body {
            flex: 1;
            min-width: 0;
        }

        .related-body h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            color: var(--text-main);
        }

        .related-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .related-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-meta i {
            color: var(--accent);
        }

        /* ========== Not Found ========== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found-wrap i {
            font-size: 64px;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .not-found-wrap h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .not-found-wrap p {
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .btn-primary-custom {
            background: var(--primary);
            border: none;
            color: #fff;
            padding: 12px 32px;
            font-size: 15px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 14px rgba(37,99,235,.2);
            transition: var(--transition);
        }

        .btn-primary-custom:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37,99,235,.3);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #1E2A38;
            color: #A7B4C4;
            padding: 60px 0 0;
            margin-top: 60px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-badge {
            background: var(--primary);
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
            color: #A7B4C4;
        }

        .footer-links h4,
        .footer-contact h4,
        .footer-qr h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

        .footer-links ul,
        .footer-contact ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #A7B4C4;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .footer-contact li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }

        .qr-placeholder {
            width: 120px;
            height: 120px;
            background: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .footer-qr p {
            font-size: 13px;
            color: #A7B4C4;
            margin-bottom: 0;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
            color: #8A99A8;
            border-top: 1px solid rgba(255,255,255,.06);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 14px;
            }
            .header-center {
                font-size: 20px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .header-left,
            .header-right {
                display: none;
            }

            .header-center {
                position: static;
                transform: none;
                margin-right: auto;
            }

            .nav-toggle {
                display: flex;
            }

            .article-header,
            .article-main {
                padding: 24px;
            }

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

            .article-summary {
                padding: 16px 18px;
            }

            .related-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-thumb {
                width: 100%;
                height: 160px;
                margin-right: 0;
                margin-bottom: 16px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-qr .qr-placeholder {
                width: 100px;
                height: 100px;
            }

            .breadcrumb-wrap {
                padding: 16px 0 8px;
            }

            .related-section {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

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

            .article-header,
            .article-main {
                padding: 16px;
                border-radius: 12px;
            }

            .article-title {
                font-size: 22px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 17px;
            }

            .article-pager {
                flex-direction: column;
            }

            .pager-link {
                width: 100%;
                justify-content: center;
                padding: 8px;
            }

            .btn-back {
                width: 100%;
                justify-content: center;
            }

            .section-title {
                font-size: 20px;
            }

            .related-section {
                padding-left: 16px;
                padding-right: 16px;
                margin-bottom: 48px;
            }

            .related-card {
                padding: 12px;
            }

            .related-thumb {
                height: 120px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #2563EB;
  --primary-dark: #1E3A8A;
  --primary-soft: rgba(37, 99, 235, .10);
  --accent: #C79A4C;
  --bg: #F6F8FB;
  --card-bg: #FFFFFF;
  --section-bg: #EEF2F7;
  --text: #1E2A38;
  --text-secondary: #5A6D7F;
  --text-light: #8A99A8;
  --border: #E6EBF2;
  --border-hover: rgba(37, 99, 235, .35);
  --radius-lg: 16px;
  --radius-sm: 8px;
  --radius-pill: 20px;
  --shadow: 0 4px 20px rgba(30, 42, 56, .06);
  --shadow-hover: 0 12px 32px rgba(30, 42, 56, .10);
  --shadow-btn: 0 4px 14px rgba(37, 99, 235, .20);
  --transition: .3s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "HONOR Sans", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 12px 28px; transition: all var(--transition); font-size: 15px; }
.btn-primary {
  background: var(--primary);
  border: 1px solid var(--primary);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover, .btn-primary:focus {
  background: #2f6ff0;
  border-color: #2f6ff0;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, .28);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(30, 42, 56, .25);
  color: var(--text);
}
.btn-outline:hover, .btn-outline:focus {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline-light {
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.6);
  color: #fff;
  backdrop-filter: blur(4px);
}
.btn-outline-light:hover { background: rgba(255,255,255,.3); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 14px 40px; font-size: 16px; }

.section-pad { padding: 96px 0; }
@media (max-width: 768px) { .section-pad { padding: 64px 0; } }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head h2 { font-size: 30px; font-weight: 700; letter-spacing: .5px; color: var(--text); margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-secondary); }
.section-head .section-subtitle { color: var(--accent); font-size: 13px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; font-weight: 600; }
@media (max-width: 768px) {
  .section-head h2 { font-size: 24px; }
  .section-head p { font-size: 15px; }
}

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(230,235,242,.8);
  transition: background .3s, box-shadow .3s;
}
.site-header.scrolled {
  background: #fff;
  box-shadow: 0 4px 20px rgba(30,42,56,.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: center;
  height: 74px; position: relative;
}
.header-left, .header-right {
  flex: 1; display: flex; align-items: center;
}
.header-left .header-nav { margin-right: auto; }
.header-right .header-nav { margin-left: auto; }
.header-nav { display: flex; gap: 8px; align-items: center; list-style: none; margin: 0; padding: 0; }
.header-nav .nav-link {
  display: inline-block; padding: 8px 18px; border-radius: var(--radius-pill);
  color: var(--text-secondary); font-size: 15px; font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.header-nav .nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.header-nav .nav-link.active {
  display: inline-block; color: var(--primary); font-weight: 600; background: var(--primary-soft);
  box-shadow: inset 0 -2px 0 var(--primary);
}
.header-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; letter-spacing: .5px; color: var(--text);
  margin: 0 16px; white-space: nowrap;
}
.header-center { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.logo-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--primary); color: #fff; font-size: 15px; font-weight: 800;
  box-shadow: var(--shadow-btn); letter-spacing: 0;
}
.btn-header { margin-left: 12px; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 42px; height: 42px; border-radius: 8px; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
  margin-left: 8px; transition: background .3s;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.nav-toggle:hover { background: rgba(37,99,235,.08); }
.mobile-menu {
  display: none; background: #fff; border-top: 1px solid var(--border);
  padding: 16px 24px 24px; box-shadow: 0 20px 40px rgba(30,42,56,.08);
}
.mobile-nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-link {
  padding: 14px 12px; border-radius: var(--radius-sm); font-size: 16px; color: var(--text);
  transition: background .25s;
}
.mobile-link:hover { background: var(--bg); color: var(--primary); }
.mobile-link.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.mobile-cta { margin-top: 14px; text-align: center; }
@media (max-width: 992px) {
  .header-nav { display: none; }
  .btn-header { display: none; }
  .nav-toggle { display: flex; }
  .header-inner { justify-content: space-between; }
  .header-logo { position: static; transform: none; margin: 0; }
  .mobile-menu.open { display: block; }
}

.page-hero {
  position: relative;
  padding: 180px 0 96px;
  background: linear-gradient(120deg, rgba(37,99,235,.12) 0%, rgba(255,255,255,.6) 40%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-color: #fff;
  min-height: 560px;
  display: flex; align-items: center;
}
.page-hero .hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border);
  padding: 6px 16px; border-radius: 30px; font-size: 13px; color: var(--primary); font-weight: 600;
  box-shadow: var(--shadow); margin-bottom: 24px;
}
.page-hero .hero-badge i { color: var(--accent); }
.page-hero h1 { font-size: 42px; font-weight: 800; line-height: 1.3; margin-bottom: 18px; color: var(--text); }
.page-hero .hero-lead { font-size: 17px; color: var(--text-secondary); max-width: 560px; line-height: 1.8; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-metrics { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-metrics span { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.hero-metrics b { font-size: 28px; font-weight: 800; color: var(--text); line-height: 1; }
.hero-metrics i { color: var(--accent); font-style: normal; font-size: 16px; }
.hero-visual {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 20px 60px rgba(30,42,56,.12);
  transform: rotate(2deg); transition: transform .4s;
}
.hero-visual:hover { transform: rotate(0deg) scale(1.02); }
.hero-visual img { width: 100%; height: 340px; object-fit: cover; }
@media (max-width: 992px) {
  .page-hero { padding: 140px 0 64px; }
  .page-hero h1 { font-size: 32px; }
  .hero-visual { margin-top: 32px; transform: none; }
}
@media (max-width: 600px) {
  .page-hero { padding: 120px 0 48px; min-height: auto; }
  .page-hero h1 { font-size: 27px; }
  .hero-lead { font-size: 15px; }
  .hero-metrics { gap: 16px; }
  .hero-metrics b { font-size: 22px; }
}

.category-intro {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.category-intro p {
  text-align: center; font-size: 16px; color: var(--text-secondary);
  max-width: 860px; margin: 0 auto; line-height: 1.8;
}

.service-points { background: var(--bg); }
.point-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 28px; height: 100%;
  box-shadow: var(--shadow); transition: all var(--transition); position: relative; overflow: hidden;
}
.point-card::before {
  content: ""; position: absolute; top: 0; left: 0; height: 3px; width: 0;
  background: var(--primary); transition: width .45s ease;
}
.point-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--border-hover); }
.point-card:hover::before { width: 100%; }
.point-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--primary-soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 20px;
}
.point-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.point-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin: 0; }
.point-card .point-num {
  position: absolute; top: 20px; right: 20px;
  font-size: 13px; font-weight: 700; color: var(--accent);
  background: rgba(199,154,76,.1); padding: 2px 12px; border-radius: 20px;
}

.cover-section { background: var(--card-bg); }
.cover-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; height: 100%;
  transition: all var(--transition); display: flex; flex-direction: column;
  box-shadow: var(--shadow);
}
.cover-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--border-hover); }
.cover-img { position: relative; overflow: hidden; aspect-ratio: 16/9; background: var(--section-bg); }
.cover-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cover-card:hover .cover-img img { transform: scale(1.05); }
.cover-tag {
  position: absolute; top: 14px; left: 14px;
  background: rgba(255,255,255,.92); color: var(--primary);
  font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: 20px;
  box-shadow: var(--shadow); backdrop-filter: blur(4px);
}
.cover-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.cover-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.cover-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; flex: 1; }
.cover-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--primary); font-size: 14px; font-weight: 600; transition: gap .3s;
}
.cover-link:hover { gap: 14px; color: var(--primary-dark); }

.scene-process { background: var(--bg); }
.sp-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start;
}
.sp-left, .sp-right { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow); }
.sp-title { font-size: 20px; font-weight: 700; margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
.sp-title i { width: 34px; height: 34px; border-radius: 10px; background: var(--primary-soft); color: var(--primary); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; }
.scene-list { display: flex; flex-direction: column; gap: 20px; }
.scene-item { display: flex; gap: 16px; align-items: flex-start; }
.scene-item .scene-num {
  width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%;
  background: rgba(199,154,76,.12); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px;
  border: 1px solid rgba(199,154,76,.25);
}
.scene-item h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.scene-item p { font-size: 13px; color: var(--text-secondary); margin: 0; line-height: 1.6; }
.process-steps { position: relative; }
.process-steps::before {
  content: ""; position: absolute; top: 22px; left: 18px; width: 2px; height: calc(100% - 44px);
  background: var(--primary-soft); border-radius: 2px;
}
.process-step { position: relative; padding-left: 56px; padding-bottom: 28px; }
.process-step:last-child { padding-bottom: 0; }
.step-dot {
  position: absolute; left: 0; top: 0; width: 38px; height: 38px; border-radius: 50%;
  background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 700; box-shadow: 0 0 0 5px rgba(37,99,235,.12); z-index: 1;
}
.process-step:nth-child(even) .step-dot { background: var(--accent); box-shadow: 0 0 0 5px rgba(199,154,76,.18); }
.process-step h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.process-step p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.65; }
@media (max-width: 992px) {
  .sp-wrap { grid-template-columns: 1fr; gap: 32px; }
}

.sub-tags-band { background: var(--card-bg); padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sub-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.sub-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: 30px;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 14px; font-weight: 500;
  transition: all var(--transition);
}
.sub-tag:hover { background: var(--primary-soft); border-color: rgba(37,99,235,.3); color: var(--primary); transform: translateY(-2px); }
.sub-tag i { font-size: 12px; color: var(--accent); }

.faq-section { background: var(--bg); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 14px; margin-bottom: 16px; overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item:hover { border-color: var(--border-hover); box-shadow: var(--shadow); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 28px; cursor: pointer; font-size: 16px; font-weight: 600;
  color: var(--text); min-height: 56px; transition: color .3s;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%;
  background: var(--primary-soft); color: var(--primary);
  display: flex; align-items: center; justify-content: center; font-size: 14px;
  transform: rotate(0deg); transition: transform .35s;
}
.faq-item.open .faq-q .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-q { color: var(--primary); }
.faq-a {
  display: none; padding: 0 28px 24px; font-size: 15px;
  color: var(--text-secondary); line-height: 1.8;
}

.cta-band {
  background: linear-gradient(135deg, #EEF4FF 0%, #E3ECFF 60%, #F6F1E7 100%);
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}
.cta-wrap {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px;
  align-items: center; background: #fff; border: 1px solid var(--border);
  border-radius: 20px; padding: 48px;
  box-shadow: 0 20px 60px rgba(30,42,56,.08);
}
.cta-left h2 { font-size: 26px; font-weight: 800; margin-bottom: 12px; }
.cta-left p { font-size: 15px; color: var(--text-secondary); margin-bottom: 20px; }
.cta-links { display: flex; flex-direction: column; gap: 12px; }
.cta-links a { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-secondary); transition: color .3s; }
.cta-links a:hover { color: var(--primary); }
.cta-links i { width: 28px; height: 28px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }
.cta-form { display: flex; flex-direction: column; gap: 16px; }
.cta-form input, .cta-form select, .cta-form textarea {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 14px 18px; font-size: 14px; background: var(--bg);
  transition: border-color .3s, box-shadow .3s; width: 100%; color: var(--text);
}
.cta-form input:focus, .cta-form select:focus, .cta-form textarea:focus {
  outline: none; border-color: var(--primary); background: #fff;
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.cta-form .btn { align-self: flex-start; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.privacy-tip { font-size: 12px; color: var(--text-light); line-height: 1.6; margin-top: 8px; }
@media (max-width: 992px) {
  .cta-wrap { grid-template-columns: 1fr; padding: 32px 24px; }
  .cta-left h2 { font-size: 22px; }
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .cta-wrap { padding: 24px 20px; }
}

.site-footer { background: #1E2A38; color: rgba(255,255,255,.8); padding: 64px 0 20px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-logo .logo-badge { background: var(--primary); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.6); margin: 0; max-width: 280px; }
.footer-links h4, .footer-contact h4, .footer-qr h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links li, .footer-contact li { margin-bottom: 10px; font-size: 14px; }
.footer-links a { color: rgba(255,255,255,.65); transition: color .3s; }
.footer-links a:hover { color: var(--primary); }
.footer-contact ul { color: rgba(255,255,255,.65); }
.qr-placeholder {
  width: 120px; height: 120px; border-radius: 12px;
  background: rgba(255,255,255,.95); color: var(--text) !important;
  display: flex; align-items: center; justify-content: center; font-size: 48px;
  margin-bottom: 12px; color: var(--text-secondary);
}
.footer-qr p { font-size: 12px; color: rgba(255,255,255,.5); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px; text-align: center; font-size: 13px;
  color: rgba(255,255,255,.45);
}
@media (max-width: 992px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; }
}

.floating-btn {
  position: fixed; right: 24px; bottom: 24px; z-index: 999;
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--primary); color: #fff; border: none;
  box-shadow: 0 8px 30px rgba(37,99,235,.35);
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  transition: all .3s; cursor: pointer;
}
.floating-btn:hover { transform: scale(1.08) rotate(10deg); background: var(--primary-dark); }
.modal-form-overlay {
  display: none; position: fixed; inset: 0; z-index: 2000;
  background: rgba(23,35,52,.45); backdrop-filter: blur(4px);
  align-items: center; justify-content: center; padding: 24px;
}
.modal-form-overlay.show { display: flex; }
.modal-card {
  background: #fff; border-radius: 20px; max-width: 560px; width: 100%;
  padding: 40px; box-shadow: 0 30px 80px rgba(0,0,0,.2); position: relative;
}
.modal-card h4 { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.modal-card .modal-sub { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 34px; height: 34px;
  border-radius: 50%; border: none; background: var(--bg); color: var(--text);
  font-size: 14px; cursor: pointer; transition: all .3s;
}
.modal-close:hover { background: var(--primary-soft); color: var(--primary); }
@media (max-width: 600px) {
  .modal-card { padding: 28px 20px; }
}

@media (max-width: 768px) {
  .cover-grid .col-md-6 { margin-bottom: 24px; }
  .cover-section .row, .service-points .row { row-gap: 24px; }
}

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-hover: #1d4ed8;
            --primary-light: #eff6ff;
            --accent: #C79A4C;
            --accent-light: #faf5eb;
            --bg-main: #F6F8FB;
            --bg-card: #FFFFFF;
            --bg-section: #EEF2F7;
            --text-main: #1E2A38;
            --text-sub: #5A6D7F;
            --text-muted: #8A99A8;
            --border: #E6EBF2;
            --border-hover: rgba(37, 99, 235, .35);
            --shadow-sm: 0 4px 20px rgba(30, 42, 56, .06);
            --shadow-md: 0 12px 32px rgba(30, 42, 56, .10);
            --shadow-btn: 0 4px 14px rgba(37, 99, 235, .20);
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-pill: 20px;
            --font-family: "PingFang SC", "HONOR Sans", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: var(--primary);
            text-decoration: none;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 96px 0;
        }

        .section-sm {
            padding: 64px 0;
        }

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

        .section-bg-white {
            background-color: #FFFFFF;
        }

        .text-primary {
            color: var(--primary) !important;
        }

        .text-accent {
            color: var(--accent) !important;
        }

        .text-sub {
            color: var(--text-sub);
        }

        .text-muted {
            color: var(--text-muted);
        }

        .btn {
            border-radius: var(--radius-md);
            font-weight: 600;
            letter-spacing: .02em;
            transition: all .3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-lg {
            height: 48px;
            padding: 0 28px;
            font-size: 15px;
        }

        .btn-sm {
            height: 40px;
            padding: 0 16px;
            font-size: 14px;
        }

        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover,
        .btn-primary:focus,
        .btn-primary:active {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 6px 18px rgba(37, 99, 235, .30);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
            background-color: transparent;
        }

        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background-color: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-link-arrow {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .3s ease;
        }

        .btn-link-arrow:hover {
            gap: 10px;
            color: var(--primary);
        }

        .badge-pill {
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.5;
        }

        .badge-accent {
            background-color: var(--accent-light);
            color: var(--accent);
        }

        .badge-primary {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        /* ===================== Header ===================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(246, 248, 251, .92);
            backdrop-filter: blur(10px);
            transition: all .3s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background-color: rgba(255, 255, 255, .97);
            box-shadow: 0 6px 24px rgba(30, 42, 56, .08);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .header-left,
        .header-right {
            display: flex;
            align-items: center;
            gap: 24px;
            flex: 1;
        }

        .header-left {
            justify-content: flex-end;
            flex-direction: row-reverse;
        }

        .header-right {
            justify-content: flex-start;
        }

        /* 中间Logo */
        .header-center {
            flex-shrink: 0;
        }

        .header-logo {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: .01em;
            color: var(--text-main);
            white-space: nowrap;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 800;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            letter-spacing: .03em;
        }

        .header-nav {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }

        .header-nav .nav-link {
            padding: 8px 12px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-md);
            font-size: 15px;
            position: relative;
            transition: color .25s ease;
        }

        .header-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: right center;
            transition: transform .3s ease;
        }

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

        .header-nav .nav-link:hover::after,
        .header-nav .nav-link.active::after {
            transform: scaleX(1);
            transform-origin: left center;
        }

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

        .btn-header {
            padding: 8px 18px;
            height: 40px;
            margin-left: 4px;
            box-shadow: none;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            width: 44px;
            height: 44px;
            padding: 10px 8px;
            cursor: pointer;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-md);
            transition: background-color .3s;
        }

        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background-color: var(--text-main);
            border-radius: 3px;
            transition: all .3s ease;
        }

        .nav-toggle:hover {
            background-color: var(--bg-section);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

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

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background-color: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px 24px;
            box-shadow: 0 16px 32px rgba(30, 42, 56, .12);
        }

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

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-link {
            display: block;
            padding: 14px 12px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
        }

        .mobile-link:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .mobile-link.active {
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .mobile-cta {
            margin-top: 12px;
            width: 100%;
            height: 48px;
        }

        /* ===================== Hero ===================== */
        .category-hero {
            padding: 72px 0;
            background-color: var(--bg-card);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            position: relative;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(246, 248, 251, .97) 45%, rgba(246, 248, 251, .78) 70%, rgba(246, 248, 251, .35) 100%);
        }

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

        .hero-crumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .hero-crumb a {
            color: var(--text-muted);
        }

        .hero-crumb a:hover {
            color: var(--primary);
        }

        .hero-crumb .crumb-sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        .hero-crumb .crumb-current {
            color: var(--primary);
            font-weight: 500;
        }

        .category-hero .hero-inner {
            max-width: 660px;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: var(--accent-light);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 20px;
        }

        .category-hero h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: .01em;
        }

        .category-hero h1 .highlight {
            color: var(--primary);
        }

        .category-hero .hero-sub {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 16px;
        }

        .category-hero .hero-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-muted);
            margin-bottom: 32px;
            border-left: 4px solid var(--primary-light);
            padding-left: 16px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .hero-stat {
            display: flex;
            align-items: center;
            gap: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .hero-stat .item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
        }

        .hero-stat .num small {
            font-size: 16px;
            color: var(--accent);
            font-weight: 700;
            margin-left: 2px;
        }

        .hero-stat .label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===================== Cover Card ===================== */
        .cover-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            height: 100%;
            position: relative;
        }

        .cover-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--primary);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform .4s ease;
            z-index: 1;
        }

        .cover-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }

        .cover-card:hover::before {
            transform: scaleX(1);
        }

        .cover-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background-color: var(--bg-section);
        }

        .cover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .cover-card:hover .cover-img img {
            transform: scale(1.06);
        }

        .cover-body {
            padding: 24px;
        }

        .cover-body .cover-tag {
            font-size: 12px;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            display: inline-block;
            margin-bottom: 12px;
            font-weight: 600;
        }

        .cover-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-main);
            transition: color .25s ease;
        }

        .cover-card:hover .cover-body h3 {
            color: var(--primary);
        }

        .cover-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===================== Info Band ===================== */
        .info-band {
            padding: 56px 0;
            background-color: var(--bg-section);
        }

        .info-grid {
            display: grid;
            gap: 24px;
        }

        .info-step {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border);
            transition: all .3s ease;
        }

        .info-step:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-hover);
        }

        .info-step .step-num {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .info-step .step-content h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .info-step .step-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===================== Sub Tags ===================== */
        .sub-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 32px;
        }

        .sub-tag {
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            background-color: var(--bg-card);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .25s ease;
        }

        .sub-tag i {
            font-size: 12px;
            color: var(--primary);
        }

        .sub-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* ===================== CTA Band ===================== */
        .cta-band {
            background-color: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(37, 99, 235, .08);
        }

        .cta-band h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-band p {
            font-size: 15px;
            color: var(--text-sub);
            max-width: 620px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-band .btn-lg {
            min-width: 180px;
        }

        /* ===================== FAQ ===================== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow .3s ease, border-color .3s ease;
        }

        .faq-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .faq-item .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            gap: 16px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            transition: color .25s ease;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform .3s ease, background-color .3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background-color: var(--primary);
            color: #fff;
        }

        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }

        .faq-item.active .faq-a {
            max-height: 400px;
        }

        .faq-item .faq-a-inner {
            padding: 0 24px 22px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.85;
            border-top: 1px solid var(--bg-section);
            padding-top: 16px;
            margin-top: 0;
        }

        /* ===================== Section Header ===================== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background-color: var(--accent-light);
            border-radius: var(--radius-pill);
            padding: 6px 18px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .section-header .section-sub {
            font-size: 15px;
            color: var(--text-sub);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ===================== Footer ===================== */
        .site-footer {
            background-color: #fff;
            border-top: 1px solid var(--border);
            margin-top: 96px;
        }

        .footer-top {
            padding: 64px 0 40px;
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 48px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }

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

        .footer-links h4,
        .footer-contact h4,
        .footer-qr h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-links h4::after,
        .footer-contact h4::after,
        .footer-qr h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 3px;
        }

        .footer-links ul,
        .footer-contact ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-sub);
            padding: 4px 0;
            display: inline-block;
            transition: all .25s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }

        .footer-contact li {
            font-size: 14px;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact li i {
            color: var(--primary);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .qr-placeholder {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--bg-main);
            margin-bottom: 12px;
        }

        .qr-placeholder i {
            font-size: 48px;
            color: var(--text-muted);
        }

        .footer-qr p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===================== Responsive ===================== */
        @media (max-width: 1024px) {
            .header-left .header-nav,
            .header-right .header-nav {
                display: none;
            }

            .header-left {
                justify-content: flex-start;
                flex-direction: row;
            }

            .header-right {
                justify-content: flex-end;
                gap: 12px;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-header {
                display: none;
            }

            .header-inner {
                height: 64px;
            }

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

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .category-hero {
                padding: 48px 0;
            }

            .category-hero h1 {
                font-size: 26px;
                line-height: 1.4;
            }

            .category-hero .hero-sub {
                font-size: 15px;
            }

            .hero-btns .btn-lg {
                width: 100%;
            }

            .hero-stat {
                gap: 20px;
                flex-wrap: wrap;
                justify-content: space-between;
            }

            .hero-stat .item {
                flex: 1;
                min-width: 100px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .cover-body {
                padding: 18px;
            }

            .cta-band {
                padding: 36px 24px;
            }

            .cta-band h2 {
                font-size: 22px;
            }

            .info-step {
                padding: 20px;
            }

            .faq-item .faq-q {
                padding: 16px 18px;
                font-size: 14px;
                align-items: flex-start;
            }

            .faq-item .faq-a-inner {
                padding: 0 18px 18px;
            }
        }

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

            .header-logo {
                font-size: 17px;
            }

            .logo-badge {
                width: 30px;
                height: 30px;
                font-size: 12px;
                border-radius: 8px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero .hero-desc {
                font-size: 14px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-top: 48px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .sub-tag {
                padding: 6px 16px;
                font-size: 13px;
            }

            .cta-band {
                padding: 28px 16px;
            }

            .cta-band .btn-lg {
                width: 100%;
                max-width: 240px;
            }

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