/* roulang page: index */
:root {
  --primary: #3d6c9b;
  --primary-dark: #2c4f73;
  --primary-soft: #e3edf5;
  --primary-softer: #f2f7fa;
  --accent: #c58a2f;
  --accent-soft: #f8ecd9;
  --white: #ffffff;
  --bg: #f5f7f9;
  --bg-deep: #e8eef3;
  --text: #25323e;
  --muted: #5b6670;
  --faint: #9ba6af;
  --line: #dce3e8;
  --dark: #1f2f3c;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-round: 999px;
  --shadow-sm: 0 1px 2px rgba(18, 32, 48, .04);
  --shadow-md: 0 8px 24px rgba(18, 32, 48, .08);
  --shadow-lg: 0 18px 44px rgba(18, 32, 48, .12);
  --space-section: 76px;
  --space-section-sm: 48px;
  --container-pad: 20px;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover, a:focus { color: var(--primary); }
ul, ol, p, figure, h1, h2, h3, h4 { margin: 0; }
button { font-family: inherit; }
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}
.section-block { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.section-bg { background: var(--bg); }
.section-white { background: var(--white); }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: var(--radius-round);
  padding: 6px 16px;
  letter-spacing: .3px;
  margin-bottom: 12px;
}
.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  display: inline-block;
}
.sec-heading {
  font-size: 28px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}
.sec-intro {
  font-size: 16px;
  color: var(--muted);
  max-width: 720px;
}
.section-head {
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px rgba(61, 108, 155, .22);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(44, 79, 115, .26);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(44, 79, 115, .2);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-soft);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-white {
  background: #fff;
  color: var(--primary-dark);
}
.btn-white:hover {
  background: var(--primary-soft);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .7);
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .14);
  color: #fff;
  border-color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(18, 32, 48, .04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--primary), var(--primary-dark));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .5px;
  box-shadow: 0 6px 14px rgba(44, 79, 115, .2);
}
.logo-text {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}
.logo-sub {
  display: block;
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 1px;
  margin-top: 2px;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.header-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 72px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  transition: color .2s ease;
}
.header-nav a:hover { color: var(--primary); }
.header-nav a.active { color: var(--primary); font-weight: 600; }
.header-nav a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--primary);
}
.header-cta {
  margin-left: 10px;
}
.header-cta .btn {
  padding: 10px 18px;
  font-size: 14px;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: var(--primary-soft);
  border: 0;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--primary);
  font-size: 20px;
  transition: background .2s ease;
}
.nav-toggle:hover { background: var(--primary); color: #fff; }
.nav-toggle .fa-bars { display: block; }
.nav-toggle.open .fa-bars { display: none; }
.nav-toggle.open .fa-xmark { display: inline-block; }
.nav-toggle .fa-xmark { display: none; }
.mobile-nav {
  display: none;
  background: var(--white);
  border-top: 1px solid var(--line);
  padding: 14px 20px 20px;
  box-shadow: var(--shadow-md);
}
.mobile-nav.open { display: block; }
.mobile-nav a.mobile-link {
  display: block;
  padding: 13px 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--bg-deep);
}
.mobile-nav a.mobile-link:hover { color: var(--primary); background: var(--primary-softer); }
.mobile-nav a.active { color: var(--primary); font-weight: 600; }
.mobile-nav .btn {
  width: 100%;
  margin-top: 16px;
}

.hero {
  background: linear-gradient(120deg, rgba(240, 246, 250, .96) 0%, rgba(252, 253, 254, .88) 48%, rgba(235, 243, 248, .8) 100%), url("/assets/images/backpic/back-1.png") center / cover;
  border-bottom: 1px solid var(--line);
  padding: 88px 0 80px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: 56px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: rgba(61, 108, 155, .1);
  color: var(--primary-dark);
  border-radius: var(--radius-round);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: 38px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.hero h1 mark {
  background: linear-gradient(transparent 62%, rgba(197, 138, 47, .22) 62%);
  color: inherit;
  padding: 0 4px;
}
.hero-sub {
  font-size: 16.5px;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}
.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--faint);
  font-size: 13px;
}
.hero-note i { color: var(--accent); margin-top: 4px; }
.hero-figure {
  position: relative;
}
.media-frame {
  position: relative;
  background: linear-gradient(135deg, var(--primary-soft), var(--bg-deep));
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .5);
  border-radius: inherit;
  pointer-events: none;
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame .img-placeholder {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 180px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
}
.media-frame img.broken {
  opacity: 0;
}
.media-frame img.broken ~ .img-placeholder {
  display: flex;
}
.hero-figure .main-figure {
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}
.float-card {
  position: absolute;
  right: -12px;
  bottom: 22px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 14px 18px;
  max-width: 260px;
  border: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.float-card .float-icon {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.float-card strong {
  font-size: 14px;
  line-height: 1.4;
  display: block;
  color: var(--text);
}
.float-card span {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.notice-strip {
  background: var(--accent-soft);
  border-bottom: 1px solid #efdfc6;
  padding: 10px 0;
}
.notice-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #7d5a24;
  font-size: 14px;
  line-height: 1.6;
}
.notice-inner .notice-label {
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.notice-inner i { color: var(--accent); }

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}
.intro-art { position: relative; }
.intro-art .media-frame {
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-md);
}
.intro-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.intro-item {
  display: flex;
  gap: 16px;
}
.intro-index {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.intro-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.intro-item p {
  color: var(--muted);
  font-size: 15px;
}

.category-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfdce5;
}
.cat-card .card-figure {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}
.cat-card .card-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(18, 32, 48, .12), transparent 50%);
}
.cat-card .card-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.cat-card:hover .card-figure img { transform: scale(1.04); }
.cat-card-body {
  padding: 22px 22px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.cat-tag {
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 4px 10px;
  border-radius: var(--radius-round);
  margin-bottom: 12px;
}
.cat-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.cat-card p {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: gap .2s ease, color .2s ease;
}
.card-link:hover { gap: 10px; color: var(--primary-dark); }
.card-link i { font-size: 12px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease;
  position: relative;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.feature-no {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--primary-softer);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
}
.feature-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.news-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 32px;
  align-items: start;
}
.post-list {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 8px 24px;
}
.feed-item {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--bg-deep);
}
.feed-item:last-child {
  border-bottom: 0;
}
.feed-meta {
  flex: 0 0 160px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
}
.feed-cat {
  align-self: flex-start;
  background: var(--primary-softer);
  color: var(--primary);
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-round);
  font-size: 12px;
}
.feed-time {
  color: var(--faint);
  font-size: 13px;
}
.feed-main h3 {
  font-size: 16.5px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.5;
}
.feed-main h3 a { color: var(--text); }
.feed-main h3 a:hover { color: var(--primary); }
.feed-main p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.feed-more {
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.feed-more i { font-size: 11px; }
.empty-state {
  border: 1px dashed var(--line);
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 64px 32px;
  text-align: center;
}
.empty-state .empty-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.empty-state p {
  color: var(--muted);
  font-size: 15px;
}
.news-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.side-guide {
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: #fff;
  position: relative;
}
.side-guide-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(44, 79, 115, .88), rgba(44, 79, 115, .96)), url("/assets/images/backpic/back-2.png") center / cover;
}
.side-guide-content {
  position: relative;
  padding: 28px;
}
.side-guide-content .tag {
  background: rgba(255, 255, 255, .18);
  border-radius: var(--radius-round);
  padding: 4px 12px;
  font-size: 12px;
  display: inline-block;
  margin-bottom: 14px;
}
.side-guide-content h3 {
  font-size: 20px;
  line-height: 1.45;
  font-weight: 700;
  margin-bottom: 10px;
}
.side-guide-content p {
  font-size: 13.5px;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 18px;
}
.side-guide-content .btn {
  padding: 10px 16px;
  font-size: 13px;
}
.side-note {
  background: var(--accent-soft);
  border: 1px solid #f0dfc3;
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #6f5224;
}
.side-note i {
  font-size: 18px;
  color: var(--accent);
  margin-top: 3px;
}
.side-note p {
  font-size: 13px;
  line-height: 1.7;
}

.steps-section {
  position: relative;
  background: linear-gradient(120deg, rgba(44, 79, 115, .96), rgba(61, 108, 155, .94)), url("/assets/images/backpic/back-2.png") center / cover;
  color: #fff;
}
.steps-section .sec-heading,
.steps-section .sec-intro { color: #fff; }
.steps-section .sec-intro { color: rgba(255, 255, 255, .8); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
}
.step-card {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  backdrop-filter: blur(4px);
  transition: background .2s ease, transform .2s ease;
}
.step-card:hover { background: rgba(255, 255, 255, .13); transform: translateY(-4px); }
.step-num {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-round);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  color: rgba(255, 255, 255, .78);
  font-size: 14px;
}

.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, border-color .2s ease;
}
.faq-item[open] { border-color: #c7d7e3; box-shadow: var(--shadow-md); }
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: color .2s ease;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-round);
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: transform .2s ease, background .2s ease;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { padding: 0 24px 22px; color: var(--muted); font-size: 15px; }

.cta-block {
  background: linear-gradient(135deg, rgba(44, 79, 115, .96), rgba(61, 108, 155, .9)), url("/assets/images/backpic/back-3.png") center / cover;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.cta-copy h2 {
  font-size: 25px;
  line-height: 1.4;
  font-weight: 700;
  margin-bottom: 10px;
}
.cta-copy p {
  color: rgba(255, 255, 255, .82);
  font-size: 15px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex-shrink: 0;
}

.site-footer {
  background: var(--dark);
  color: #cfd9e1;
  margin-top: 0;
}
.footer-top {
  padding: 52px 0 34px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  display: grid;
  grid-template-columns: 1.2fr .9fr .9fr;
  gap: 40px;
}
.footer-brand .logo-text { color: #fff; margin-bottom: 8px; }
.footer-brand .logo-sub { color: #93a1ad; }
.footer-brand p {
  font-size: 13.5px;
  margin-top: 16px;
  color: #9eabb5;
  line-height: 1.8;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-link-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-link-list li { margin: 0; }
.footer-link-list a {
  color: #aebcc7;
  font-size: 14px;
  transition: color .2s ease, padding-left .2s ease;
}
.footer-link-list a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  padding: 18px 0;
  font-size: 13px;
  color: #7f8f9d;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.back-top {
  position: fixed;
  right: 18px;
  bottom: 30px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-round);
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 10px 20px rgba(16, 30, 46, .18);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
}
.back-top.show {
  opacity: 1;
  visibility: visible;
}
.back-top:hover {
  background: var(--primary-dark);
  transform: translateY(-4px);
  color: #fff;
}

@media (max-width: 1024px) {
  .hero { padding: 64px 0 64px; }
  .hero-grid { gap: 36px; }
  .hero h1 { font-size: 31px; }
  .category-cards { gap: 16px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr 300px; gap: 20px; }
  .steps-grid { gap: 18px; }
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-block { flex-direction: column; align-items: flex-start; }
  .float-card { right: 8px; }
}

@media (max-width: 900px) {
  .header-nav,
  .header-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .mobile-nav { display: none; }
  .mobile-nav.open { display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero-btns { flex-wrap: wrap; }
  .category-cards { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .feed-meta { flex-basis: 130px; }
  .steps-section { padding-left: 0; padding-right: 0; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; padding-top: 40px; }
}

@media (max-width: 640px) {
  :root { --space-section: 44px; }
  .section-block { padding-top: var(--space-section); padding-bottom: var(--space-section); }
  .sec-heading { font-size: 23px; }
  .hero { padding: 44px 0 52px; }
  .hero h1 { font-size: 26px; line-height: 1.38; }
  .hero-sub { font-size: 15px; }
  .hero-btns .btn { width: 100%; }
  .header-inner { min-height: 64px; }
  .logo-text { font-size: 17px; }
  .notice-inner { font-size: 13px; }
  .category-cards { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .feature-card { padding: 20px 16px; }
  .feature-card h3 { font-size: 14px; }
  .feature-card p { font-size: 13px; }
  .feed-item { flex-direction: column; gap: 10px; padding: 20px 0; }
  .feed-meta { flex-basis: auto; flex-direction: row; align-items: center; }
  .news-side { margin-top: 8px; }
  .steps-grid { grid-template-columns: 1fr; gap: 14px; }
  .cta-block { padding: 30px 22px; }
  .cta-actions .btn { width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .float-card { display: flex; right: 12px; bottom: 14px; left: 12px; max-width: none; }
}

@media (max-width: 420px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* roulang page: article */
:root{
  --primary:#176c78;
  --primary-deep:#0e545e;
  --primary-soft:#e4f2f4;
  --primary-mist:#eef7f8;
  --accent:#d97b43;
  --accent-soft:#f9eee5;
  --bg:#ffffff;
  --bg-soft:#f5f8f9;
  --line:#e4e9eb;
  --text:#243238;
  --muted:#64757d;
  --weak:#9aacb3;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.05);
  --shadow-md:0 8px 22px rgba(16,24,40,.08);
  --shadow-lg:0 16px 42px rgba(16,24,40,.11);
  --font-main:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --ease:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--ease)}
a:hover{color:var(--primary-deep)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(23,108,120,.35);outline-offset:2px;border-radius:var(--radius-sm)}
p{margin:0 0 1.1em}
h1,h2,h3,h4,h5{line-height:1.35;font-weight:600;color:var(--text);margin:0 0 .5em}
ul{padding-left:0;list-style:none;margin:0}

.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:860px;margin:0 auto;padding:0 22px}
.section{padding:74px 0}
.section-soft{background:var(--bg-soft)}
.section-line{border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--primary);background:var(--primary-soft);padding:5px 13px;border-radius:var(--radius-full);margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:20px}

/* -------- header -------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;height:70px;align-items:center;justify-content:space-between;gap:26px}
.brand-logo{display:flex;align-items:center;gap:11px}
.brand-icon{
  width:42px;height:42px;border-radius:11px;flex:0 0 42px;
  background:linear-gradient(140deg,#176c78,#0e545e);
  color:#fff;font-size:18px;font-weight:700;letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(23,108,120,.22);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-main{font-size:17px;font-weight:700;color:var(--text)}
.logo-mini{font-size:11px;color:var(--muted);letter-spacing:.08em}

.header-nav{display:flex;align-items:center;gap:2px}
.header-nav a{
  display:inline-block;padding:9px 16px;font-size:15px;
  border-radius:var(--radius-full);color:var(--text);
  font-weight:500;transition:var(--ease);
}
.header-nav a:hover{color:var(--primary);background:var(--primary-mist)}
.header-nav a.active{color:var(--primary-deep);background:var(--primary-soft);font-weight:600}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;font-weight:600;
  padding:10px 20px;border-radius:var(--radius-full);
  box-shadow:0 5px 12px rgba(23,108,120,.24);
  transition:all .25s ease;
}
.header-cta i{font-size:13px}
.header-cta:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px)}
.header-cta:active{transform:translateY(0)}

.nav-toggle{display:none;background:none;border:1px solid var(--line);width:44px;height:44px;border-radius:10px;font-size:20px;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.mobile-menu{position:fixed;inset:0;z-index:120;background:rgba(18,31,36,.55);opacity:0;visibility:hidden;transition:opacity .28s ease}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-drawer{position:absolute;top:0;right:0;bottom:0;width:min(82vw,340px);background:#fff;padding:30px 26px;box-shadow:-12px 0 40px rgba(16,24,40,.14);overflow:auto;transform:translateX(20px);transition:transform .28s ease}
.mobile-menu.open .mobile-drawer{transform:translateX(0)}
.mobile-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}
.mobile-brand{font-weight:700;color:var(--text)}
.mobile-close{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;width:38px;height:38px;font-size:18px;cursor:pointer;color:var(--text)}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.mobile-nav a{padding:12px 14px;border-radius:10px;color:var(--text);font-size:16px;font-weight:500}
.mobile-nav a:hover{background:var(--primary-mist);color:var(--primary)}
.mobile-nav a.active{background:var(--primary-soft);color:var(--primary-deep);font-weight:600}
.mobile-actions{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.btn-mobile{display:flex;justify-content:center;padding:13px 18px;border-radius:12px;font-weight:600}
.btn-main{background:var(--primary);color:#fff}
.btn-main:hover{background:var(--primary-deep);color:#fff}
.btn-outline{border:1px solid var(--line);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}

/* -------- buttons -------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-size:15px;border:none;cursor:pointer;font-family:inherit;transition:all .22s ease;font-weight:600}
.btn-primary{background:var(--primary);color:#fff;padding:12px 26px;box-shadow:0 4px 12px rgba(23,108,120,.2)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(23,108,120,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-light{background:var(--bg);color:var(--primary-deep);padding:12px 26px;box-shadow:0 4px 14px rgba(0,0,0,.1)}
.btn-light:hover{background:var(--primary-mist);transform:translateY(-2px)}
.btn-outline{border:1px solid var(--primary);color:var(--primary);padding:11px 24px;background:transparent}
.btn-outline:hover{border-color:var(--primary);background:var(--primary-soft);color:var(--primary-deep)}

/* -------- article hero -------- */
.article-hero{
  position:relative;padding:72px 0 56px;overflow:hidden;
  background:linear-gradient(160deg,#14343c 0%,#113a44 45%,#102a31 100%);
  margin-top:0;
}
.article-hero-wash{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.17;
}
.article-hero-wrap{position:relative;z-index:3}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(220,235,239,.78);margin-bottom:30px}
.breadcrumb a{color:rgba(220,235,239,.82);padding:2px 0}
.breadcrumb a:hover{color:#fff}
.breadcrumb .now{color:#fff;opacity:.95;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.breadcrumb .sep{opacity:.55}
.article-hero h1{color:#fff;font-size:36px;line-height:1.4;max-width:780px;margin:0 0 22px;font-weight:600}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;color:rgba(220,235,239,.82);font-size:14px}
.article-meta i{margin-right:5px;color:#d0e7ea}
.article-meta span.topic{display:inline-flex;align-items:center;background:rgba(255,255,255,.13);padding:3px 12px;border-radius:var(--radius-full);font-size:13px;color:#eaf6f7}

/* -------- article layout -------- */
.article-layout{background:var(--bg);padding:64px 0 0}
.article-layout .content-article{
  max-width:820px;margin:0 auto;
  background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-sm);
  padding:52px 70px 56px;
  position:relative;top:-30px;margin-bottom:-30px;
  z-index:5;
}
.content-article p{color:#35464e;margin-bottom:1.4em;font-size:16px}
.content-article h2{font-size:25px;margin:1.6em 0 .6em}
.content-article h3{font-size:20px;margin:1.5em 0 .5em;color:var(--primary-deep)}
.content-article figure{margin:1.8em 0}
.content-article blockquote{border-left:4px solid var(--primary);background:var(--primary-mist);margin:1.4em 0;padding:18px 26px;border-radius:0 12px 12px 0;color:#37555a}
.content-article blockquote p{margin:0}
.content-article ul{list-style:disc;padding-left:30px;margin:0 0 1.4em}
.content-article ol{list-style:decimal;padding-left:30px;margin:0 0 1.4em}
.content-article li{margin:.35em 0}
.content-article a{text-decoration:underline;text-decoration-color:rgba(23,108,120,.3)}
.content-article img{border-radius:16px;margin:1.2em auto;box-shadow:var(--shadow-md)}
.content-article hr{margin:2.4em 0;border:none;border-top:1px solid var(--line)}
.article-lead{font-size:17px;color:#596b72;border-left:3px solid var(--accent);padding-left:20px;line-height:1.8;margin:.4em 0 1.6em}

/* not found */
.not-found-card{
  text-align:center;padding:80px 30px;border-radius:18px;
  background:var(--bg-soft);border:1px dashed var(--line);
}
.not-found-card i{font-size:38px;color:var(--weak);margin-bottom:18px;display:block}
.not-found-card h2{font-size:28px;margin-bottom:10px}
.not-found-card p{color:var(--muted);margin-bottom:22px}
.not-found-card a{display:inline-flex;margin-top:6px;font-weight:600}

/* bottom nav */
.article-guide{max-width:860px;margin:0 auto;padding:10px 0 64px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  background:var(--bg);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:all .25s ease;display:flex;flex-direction:column;height:100%;
}
.rel-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:rgba(23,108,120,.3)}
.rel-card .cover{height:140px;margin:0;overflow:hidden;background:var(--bg-soft);display:flex;align-items:center;justify-content:center}
.rel-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .cover img{transform:scale(1.06)}
.rel-card-body{padding:29px 26px 25px;display:flex;flex-direction:column;flex-grow:1}
.rel-tag{font-size:13px;color:var(--primary);font-weight:600;margin-bottom:8px}
.rel-card-body h3{font-size:17px;margin-bottom:8px}
.rel-card-body p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:15px;flex-grow:1}
.link-arrow{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-weight:600;font-size:14px}
.link-arrow i{font-size:13px;transition:transform .22s ease}
.link-arrow:hover{color:var(--primary-deep)}
.link-arrow:hover i{transform:translateX(4px)}

/* simple cta */
.article-faq{padding:54px 0}
.cta-return{
  max-width:860px;margin:0 auto 42px;background:var(--primary-soft);
  border-radius:20px;padding:28px 38px;display:flex;flex-wrap:wrap;align-items:center;gap:20px;justify-content:space-between;
}
.cta-return h3{margin:0 0 4px;font-size:19px;color:var(--primary-deep)}
.cta-return p{margin:0;font-size:14px;color:var(--muted)}
.link-back:hover{text-decoration:underline}

/* faq */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--bg)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:21px 26px;cursor:pointer;background:none;border:none;width:100%;text-align:left;font-family:inherit;font-size:17px;font-weight:600;color:var(--text);transition:background .2s ease}
.faq-q:hover{background:var(--primary-mist)}
.faq-q .fa-chevron-down{margin-left:auto;font-size:13px;color:var(--primary);transition:transform .25s ease}
.faq-item.open .fa-chevron-down{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 27px 24px;color:var(--muted);font-size:15px;line-height:1.75}

/* -------- footer -------- */
.site-footer{background:#10262d;color:#b5c7cb;margin-top:78px}
.site-footer a{color:#c9dcdf;transition:color .2s ease}
.site-footer a:hover{color:#fff}
.footer-wrap{max-width:1240px;margin:0 auto;padding:56px 22px 36px}
.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:44px;margin-bottom:40px}
.brand-logo-footer{display:flex;gap:12px;align-items:center;margin-bottom:18px;color:#fff}
.brand-logo-footer .brand-icon{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25)}
.brand-logo-footer .logo-main{color:#fff}
.brand-logo-footer .logo-mini{color:#7c989e}
.footer-desc{font-size:14px;line-height:1.85;margin-bottom:22px;max-width:340px}
.footer-title{font-size:16px;color:#fff;margin-bottom:18px;font-weight:600;position:relative;padding-bottom:10px}
.footer-title::after{content:"";position:absolute;bottom:0;left:0;width:28px;height:2px;background:var(--accent);border-radius:4px}
.footer-link-list li+li{margin-top:8px}
.footer-link-list a{font-size:14px;display:inline-block;padding:2px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13px;color:#7d989e}

/* responsive */
@media screen and (max-width:1024px){
  .article-hero h1{font-size:32px}
  .content-article{padding:42px 44px 48px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:860px){
  .header-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:54px 0}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .article-hero{padding:50px 0 44px}
  .article-hero h1{font-size:28px}
  .content-article{padding:34px 24px 40px;border-radius:16px;top:-22px;margin-bottom:-22px}
  .related-grid{gap:18px}
  .article-meta{flex-direction:column;gap:10px}
  .breadcrumb .now{white-space:normal;max-width:100%}
  .cta-return{padding:24px 22px;flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:600px){
  .related-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-layout{padding-top:6px}
  .article-hero h1{font-size:24px}
  .article-meta{font-size:13px}
  .content-article p{font-size:15px}
  .section{padding:42px 0}
}

/* roulang page: category1 */
:root {
  --primary: #3974a8;
  --primary-dark: #2f5f89;
  --primary-light: #6d9dbe;
  --primary-soft: #e9f1f7;
  --accent: #d79945;
  --bg-body: #ffffff;
  --bg-soft: #f5f8fa;
  --bg-deep: #1e3444;
  --text-main: #2e3843;
  --text-sub: #626d78;
  --text-light: #9aa4ad;
  --border: #e4e8ee;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 999px;
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.07);
  --shadow-lg: 0 18px 40px rgba(16, 24, 40, 0.11);
  --space-section: 80px;
  --space-section-sm: 48px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans SC", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-body);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

ul,
ol {
  margin: 0;
  padding: 0;
}

figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-main);
}

h1 {
  font-size: 2.05rem;
}

h2 {
  font-size: 1.62rem;
}

h3 {
  font-size: 1.16rem;
}

p {
  margin-top: 0;
}

.wrap {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(16, 24, 40, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 72px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-logo:hover {
  color: var(--text-main);
}

.header-brand-logo .brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, #3c79a5, #2c5d82);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 14px rgba(47, 95, 137, 0.22);
}

.brand-icon {
  font-weight: 800;
  font-style: normal;
}

.logo-text {
  display: flex;
  flex-direction: column;
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--text-main);
}

.logo-sub {
  font-size: 0.72rem;
  color: var(--text-sub);
  font-weight: 400;
  letter-spacing: 0.06em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}

.header-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  color: var(--text-sub);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.header-nav a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.header-nav a:focus-visible,
.brand-logo:focus-visible,
.btn:focus-visible,
.nav-toggle:focus-visible {
  outline: 3px solid rgba(57, 116, 168, 0.35);
  outline-offset: 2px;
}

.header-nav a.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 8px 18px rgba(57, 116, 168, 0.26);
}

.nav-cta {
  margin-left: 12px;
}

.nav-cta a {
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 600;
}

.nav-cta a:hover {
  background: var(--primary);
  color: #fff;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  cursor: pointer;
  transition: background 0.2s ease, border 0.2s ease;
}

.nav-toggle:hover {
  background: var(--primary-soft);
  border-color: var(--primary-light);
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--primary);
  display: block;
  position: relative;
  border-radius: 4px;
  transition: background 0.2s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--primary);
  display: block;
  position: absolute;
  left: 0;
  border-radius: 4px;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

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

.section-heading {
  max-width: 840px;
  margin: 0 auto 46px;
  text-align: center;
}

.section-kicker,
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-bottom: 18px;
}

.section-heading h2 {
  margin-bottom: 14px;
}

.section-intro {
  color: var(--text-sub);
  font-size: 1.02rem;
  margin-bottom: 0;
}

.category-hero {
  position: relative;
  background-image: linear-gradient(100deg, rgba(255, 255, 255, 0.98), rgba(244, 249, 252, 0.96));
  border-bottom: 1px solid var(--border);
  padding: 88px 0 84px;
  overflow: hidden;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(246, 250, 252, 0.96) 55%, rgba(231, 241, 247, 0.92) 100%),
    url('/assets/images/backpic/back-1.png');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover, cover;
}

.category-hero::after {
  content: '';
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  right: -180px;
  top: -180px;
  background: rgba(57, 116, 168, 0.05);
  pointer-events: none;
}

.hero-breadcrumb {
  font-size: 0.9rem;
  color: var(--text-sub);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

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

.hero-breadcrumb a:hover {
  text-decoration: underline;
}

.category-hero h1 {
  font-size: 2.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 760px;
  margin-bottom: 20px;
}

.category-hero p.lead {
  font-size: 1.08rem;
  color: var(--text-sub);
  max-width: 670px;
  margin-bottom: 30px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 26px;
  border-radius: var(--radius-md);
  font-size: 0.98rem;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border 0.2s ease;
  cursor: pointer;
}

.btn i {
  margin-right: 9px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(57, 116, 168, 0.2);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(57, 116, 168, 0.28);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 6px 12px rgba(57, 116, 168, 0.2);
}

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

.btn-secondary:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary-dark);
  transform: translateY(-2px);
}

.hero-illustration {
  position: relative;
  z-index: 1;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--primary-soft);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  min-height: 260px;
}

.hero-float-note {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 12px 18px;
  margin-top: 18px;
  color: var(--text-sub);
  font-size: 0.9rem;
}

.hero-float-note i {
  color: var(--primary);
}

.check-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 25px 28px;
  height: 100%;
  transition: box-shadow 0.2s ease, border 0.2s ease, transform 0.2s ease;
}

.check-card:hover {
  border-color: rgba(57, 116, 168, 0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.check-card .item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.check-number {
  color: var(--primary-light);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 1.1rem;
}

.check-card h3 {
  margin-bottom: 10px;
}

.check-card p {
  color: var(--text-sub);
  font-size: 0.94rem;
  margin-bottom: 0;
}

.split-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.split-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

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

.visual-tag {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(30, 52, 68, 0.82);
  color: #fff;
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

.step-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.step-list li {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--border);
}

.step-list li:last-child {
  border-bottom: 0;
}

.step-index {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}

.step-list strong {
  font-size: 1rem;
}

.step-list p {
  color: var(--text-sub);
  font-size: 0.93rem;
  margin: 4px 0 0;
}

.scenario-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 25px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border 0.2s ease;
}

.scenario-card:hover {
  border-color: rgba(57, 116, 168, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.scenario-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--primary-soft), #e7f0f6);
  border-radius: 16px;
  color: var(--primary);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 17px;
}

.scenario-card h3 {
  margin-bottom: 10px;
}

.scenario-card p {
  color: var(--text-sub);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.text-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.93rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.text-link i {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
}

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

.notice-zone {
  background: #fffdf8;
  border: 1px solid #f0e6d4;
}

.notice-inner {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.notice-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #fff6e8;
  color: #c98e38;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-cta {
  position: relative;
  padding: 80px 0;
  color: #fff;
  background-image:
    linear-gradient(100deg, rgba(30, 52, 68, 0.96) 0%, rgba(44, 86, 120, 0.94) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size: cover, cover;
  background-position: center;
}

.category-cta h2 {
  color: #fff;
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.category-cta p {
  color: rgba(255, 255, 255, 0.84);
  max-width: 700px;
  margin-bottom: 26px;
}

.cta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.cta-tags span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  padding: 5px 13px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.9);
}

.faq-item {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-md);
  padding: 0 22px;
  margin-bottom: 12px;
  transition: box-shadow 0.2s ease;
}

.faq-item[open] {
  box-shadow: var(--shadow-sm);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 62px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main);
  list-style: none;
}

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

.faq-q .faq-arrow {
  color: var(--primary-light);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item[open] .faq-q .faq-arrow {
  transform: rotate(180deg);
}

.faq-a {
  padding: 0 24px 20px 0;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.76);
  padding: 64px 0 26px;
  font-size: 0.92rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.76);
}

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

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.9fr;
  gap: 48px;
  padding-bottom: 34px;
}

.footer-brand .brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  font-size: 0.84rem;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

.footer-brand .logo-sub {
  color: rgba(255, 255, 255, 0.58);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  max-width: 420px;
  font-size: 0.88rem;
  margin: 20px 0 0;
}

.footer-title {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 18px;
}

.footer-link-list {
  list-style: none;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-link-list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  position: relative;
}

.footer-link-list a:hover {
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 0.82rem;
}

.footer-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

@media screen and (min-width: 1025px) {
  .header-nav a:first-child {
    margin-left: 0;
  }
}

@media screen and (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

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

  .category-hero {
    padding: 64px 0 58px;
  }
}

@media screen and (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
    min-height: 64px;
  }

  .header-brand-logo .brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .header-nav {
    width: 100%;
    margin-left: 0;
    padding: 4px 0 18px;
    gap: 0;
    display: none;
  }

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

  .header-nav a {
    width: 100%;
    border-radius: var(--radius-md);
    justify-content: flex-start;
    margin-bottom: 4px;
    padding: 12px 16px;
    font-size: 1rem;
  }

  .header-nav a.active {
    background: var(--primary-soft);
    color: var(--primary-dark);
    box-shadow: none;
  }

  .nav-cta {
    margin-left: 0;
  }

  h1,
  .category-hero h1 {
    font-size: 1.9rem;
  }

  .hero-illustration {
    margin-top: 34px;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --space-section: 54px;
  }

  .category-hero {
    padding-top: 48px;
    padding-bottom: 44px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .section-heading {
    margin-bottom: 34px;
  }

  .split-visual img {
    min-height: 260px;
  }

  .notice-inner {
    flex-direction: column;
  }
}

@media screen and (max-width: 520px) {
  .wrap {
    padding: 0 18px;
  }

  .category-hero h1,
  h1 {
    font-size: 1.65rem;
  }

  h2 {
    font-size: 1.38rem;
  }

  .hero-buttons,
  .btn {
    width: 100%;
  }

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

  .category-cta {
    padding: 58px 0;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 6px;
  }
}

/* roulang page: category3 */
:root {
    --primary: #3976a8;
    --primary-light: #eaf1f7;
    --primary-soft: #f2f6fa;
    --accent: #d99e46;
    --dark: #1d2d3a;
    --body-text: #3a3a3a;
    --text-sub: #6d7278;
    --text-faint: #b0b6bf;
    --border-light: #e7ebef;
    --bg-light: #f6f7f9;
    --white: #ffffff;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-xs: 0 1px 2px rgba(24, 40, 46, 0.04);
    --shadow-md: 0 6px 18px rgba(24, 40, 46, 0.08);
    --shadow-hover: 0 16px 40px rgba(24, 40, 46, 0.12);
    --space-section: 80px;
    --container-max: 1200px;
    --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-stack); color: var(--body-text); background: var(--white); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
ul, ol { list-style: none; }
button, input { font: inherit; border: none; outline: none; background: none; }
.wrap { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

.site-header { background: var(--white); border-bottom: 1px solid var(--border-light); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon { width: 42px; height: 42px; background: var(--primary); color: #fff; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; letter-spacing: 0.02em; box-shadow: var(--shadow-xs); }
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 19px; font-weight: 700; color: var(--dark); letter-spacing: 0.01em; }
.logo-sub { font-size: 11px; color: var(--text-sub); letter-spacing: 0.05em; }
.header-nav { display: flex; align-items: center; gap: 32px; }
.header-nav a { font-size: 15px; color: var(--text-sub); position: relative; padding: 6px 0; font-weight: 500; }
.header-nav a:hover { color: var(--primary); }
.header-nav a.active { color: var(--primary); }
.header-nav a.active::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 3px; background: var(--primary); border-radius: 4px; }
.header-cta { margin-left: 6px; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: var(--radius-sm); align-items: center; justify-content: center; font-size: 20px; color: var(--dark); cursor: pointer; background: var(--bg-light); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; font-weight: 600; font-size: 15px; padding: 0 22px; height: 46px; line-height: 1; transition: all .2s ease; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 14px rgba(57, 118, 168, 0.2); }
.btn-primary:hover { background: #32688f; transform: translateY(-2px); box-shadow: 0 10px 20px rgba(57, 118, 168, 0.28); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; color: var(--primary); border-color: #c3d5e4; }
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-lg { height: 52px; padding: 0 30px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }

.hero { background: var(--primary-soft); position: relative; overflow: hidden; padding: 90px 0 80px; }
.hero:before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(255,255,255,.8) 0%, rgba(255,255,255,.2) 55%, rgba(57,118,168,.08) 100%); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: flex; align-items: center; gap: 56px; }
.hero-copy { flex: 1.25; }
.hero h1 { font-size: 38px; font-weight: 700; line-height: 1.28; color: var(--dark); letter-spacing: 0.01em; margin-bottom: 18px; }
.hero h1 .accent { color: var(--primary); }
.hero h1 .light-line { color: var(--text-sub); font-weight: 500; font-size: 28px; display: block; margin-top: 8px; }
.hero .lead { font-size: 17px; line-height: 1.8; color: var(--body-text); max-width: 600px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-media { flex: 0.75; }
.hero-media .media-panel { border-radius: var(--radius-lg); padding: 42px 34px; min-height: 300px; display: flex; flex-direction: column; justify-content: flex-end; position: relative; overflow: hidden; background: linear-gradient(160deg, #dbe9f4 0%, #b9d4e8 100%); box-shadow: var(--shadow-hover); }
.hero-media .cover-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-media .glass-note { position: relative; background: rgba(255,255,255,.88); border-radius: var(--radius-md); padding: 16px 20px; backdrop-filter: blur(4px); border: 1px solid rgba(255,255,255,.6); box-shadow: var(--shadow-md); margin-top: auto; }
.hero-media .glass-note strong { display: block; font-size: 16px; color: var(--dark); margin-bottom: 4px; }
.hero-media .glass-note span { font-size: 13px; color: var(--text-sub); }

.post-intro { padding: 72px 0; background: var(--white); }
.post-intro .align-center { text-align: center; max-width: 720px; margin: 0 auto; }
.section-eyebrow { font-size: 14px; color: var(--primary); font-weight: 600; letter-spacing: 0.08em; margin-bottom: 10px; display: inline-block; text-transform: uppercase; }
.section-intro-title { font-size: 30px; font-weight: 700; color: var(--dark); line-height: 1.4; margin-bottom: 12px; letter-spacing: 0.01em; }
.section-intro-sub { font-size: 16px; color: var(--text-sub); line-height: 1.8; }

.category-brief { background: var(--bg-light); padding: 70px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.flow-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 44px; }
.flow-card { background: var(--white); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 28px 26px; transition: all .3s ease; }
.flow-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: #c2d4e4; }
.flow-card .flow-icon { width: 72px; height: 72px; border-radius: var(--radius-md); background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 30px; color: var(--primary); margin-bottom: 20px; }
.flow-card h3 { font-size: 19px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.flow-card p { font-size: 15px; color: var(--text-sub); line-height: 1.75; }

.visual-feature { width: 100%; height: 260px; object-fit: cover; border-radius: var(--radius-lg); margin: 30px 0 20px; box-shadow: var(--shadow-md); }

.feature-list-section { padding: 76px 0; background: var(--white); }
.split-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; margin-top: 40px; }
.split-image { width: 100%; border-radius: var(--radius-lg); height: 320px; object-fit: cover; }
.info-list .li-item { display: flex; gap: 17px; padding: 16px 0; border-bottom: 1px solid #f0f0f2; }
.info-list .li-item:last-child { border-bottom: none; }
.info-list .li-icon { width: 28px; height: 28px; border-radius: 8px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 13px; margin-top: 3px; }
.info-list .li-body h4 { color: var(--dark); font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.info-list .li-body p { font-size: 15px; color: var(--text-sub); line-height: 1.7; }

.main-info { background: var(--bg-light); padding: 76px 0; border-top: 1px solid var(--border-light); }
.collection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 42px; }
.collection-card { background: var(--white); border: 1px solid var(--border-light); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; transition: all .3s ease; }
.collection-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-5px); }
.collection-cover { height: 160px; background: #e8edf2; position: relative; overflow: hidden; }
.collection-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.collection-card:hover .collection-cover img { transform: scale(1.03); }
.collection-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.collection-tag { font-size: 12px; padding: 4px 10px; background: var(--primary-light); color: var(--primary); border-radius: 8px; align-self: flex-start; margin-bottom: 12px; font-weight: 600; letter-spacing: .02em; }
.collection-body h3 { font-size: 18px; color: var(--dark); line-height: 1.45; font-weight: 700; margin-bottom: 8px; }
.collection-body p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.collection-meta { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #f0f2f5; padding-top: 14px; font-size: 13px; color: var(--text-faint); }
.collection-meta a { display: flex; align-items: center; gap: 5px; color: var(--primary); font-weight: 600; font-size: 14px; }
.collection-meta a:hover { gap: 9px; }

.marquee-block { background: var(--dark); padding: 48px 0; }
.ticker-title { color: #ffffff; display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 600; margin-bottom: 6px; white-space: nowrap; flex-shrink: 0; }
.ticker-wrap { display: flex; align-items: center; gap: 28px; overflow: hidden; white-space: nowrap; }
.ticker-scroll { overflow: hidden; flex: 1; }
.ticker-items { display: inline-flex; gap: 44px; color: #c5d6e4; font-size: 15px; animation: tickerMove 34s linear infinite; }
.ticker-items .dot { color: var(--accent); padding-right: 10px; }
.marquee-note { color: rgba(255,255,255,.85); font-style: normal; cursor: pointer; border-bottom: 1px dotted rgba(255,255,255,.3); padding-bottom: 2px; font-size: 15px; transition: color .2s ease; }
.marquee-note:hover { color: #9fc1e0; border-bottom-color: #4a82ae; }

.faq-block { padding: 76px 0; background: var(--white); }
.faq-grid { max-width: 860px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid var(--border-light); }
.faq-item:first-child { border-top: 1px solid var(--border-light); }
.faq-button { width: 100%; text-align: left; display: flex; justify-content: space-between; align-items: center; padding: 22px 6px; background: transparent; cursor: pointer; color: var(--dark); font-size: 16px; font-weight: 600; letter-spacing: .01em; }
.faq-button:hover { color: var(--primary); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; display: flex; justify-content: center; align-items: center; color: var(--primary); font-size: 18px; transition: transform .25s ease; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer-inner { padding: 0 40px 22px 6px; color: var(--text-sub); font-size: 15px; line-height: 1.8; }

.main-cta-zone { background: var(--primary-soft); border-top: 1px solid #dae6f0; padding: 70px 0; }
.cta-card { background: linear-gradient(140deg, #2b5a79 0%, #3976a8 58%, #4a88ba 100%); border-radius: var(--radius-lg); padding: 52px 36px; color: #ffffff; }
.cta-inner { display: flex; align-items: center; gap: 40px; }
.cta-copy { flex: 1; }
.cta-copy h2 { font-size: 28px; line-height: 1.4; font-weight: 700; margin-bottom: 12px; }
.cta-copy p { font-size: 16px; line-height: 1.7; opacity: .85; max-width: 620px; }
.cta-action { flex-shrink: 0; width: 300px; background: var(--primary-light); border-radius: var(--radius-lg); padding: 22px; text-align: left; box-shadow: rgba(255,255,255,.08) 0 2px 12px inset; }
.cta-action-inner h4 { color: var(--primary); font-size: 16px; font-weight: 700; margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
.cta-action-inner p { font-size: 13px; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px; }
.cta-action .btn { width: 100%; }

.site-footer { background: var(--dark); color: rgba(255,255,255,.72); padding: 58px 0 0; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.2fr 0.9fr 1fr; gap: 44px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-brand .brand-logo .logo-text strong { color: rgba(255,255,255,.95); }
.footer-brand .brand-logo .logo-sub { color: rgba(255,255,255,.55); }
.footer-brand .brand-icon { background: #4a88ba; color: #ffffff; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 340px; }
.footer-title { font-size: 18px; font-weight: 600; color: rgba(255,255,255,.95); margin-bottom: 18px; position: relative; padding-left: 12px; }
.footer-title::before { content: ""; position: absolute; left: 0; top: 7px; width: 4px; height: 16px; background: var(--primary); border-radius: 4px; }
.footer-link-list li { margin-bottom: 10px; }
.footer-link-list a { color: rgba(255,255,255,.62); font-size: 14px; transition: all .2s ease; }
.footer-link-list a:hover { color: #9fc1e0; padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; padding: 20px 0; font-size: 13px; color: rgba(255,255,255,.43); }

@keyframes tickerMove { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

@media (max-width: 1024px) {
    :root { --space-section: 56px; }
    .hero-inner { flex-direction: column; }
    .hero-media { width: 100%; max-height: 340px; }
    .split-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .cta-inner { flex-direction: column; }
    .cta-action { width: 100%; }
}
@media (max-width: 900px) {
    .header-nav { position: fixed; top: 72px; left: 0; width: 100%; background: var(--white); flex-direction: column; align-items: flex-start; padding: 20px 28px 30px; gap: 4px; box-shadow: 0 18px 24px rgba(0,0,0,.08); transform: translateY(-16px); opacity: 0; visibility: hidden; transition: all .25s ease; border-bottom: 1px solid var(--border-light); z-index: 99; }
    .header-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
    .header-nav a { display: block; padding: 12px 0; font-size: 17px; width: 100%; border-bottom: 1px solid #f3f4f6; }
    .header-nav a.active::after { display: none; }
    .header-nav a.active { color: var(--primary); font-weight: 700; }
    .header-nav .head-btn-item { width: 100%; margin-top: 12px; }
    .header-nav .head-btn-item::before { display: none; }
    .nav-toggle { display: flex; }
    .flow-meta, .collection-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 650px) {
    :root { --space-section: 44px; }
    .wrap { padding: 0 18px; }
    .hero { padding: 50px 0 40px; }
    .hero h1 { font-size: 27px; }
    .hero h1 .light-line { font-size: 20px; }
    .hero .lead { font-size: 15.5px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .section-intro-title { font-size: 24px; }
    .flow-meta, .collection-grid { grid-template-columns: 1fr; }
    .split-grid { gap: 28px; }
    .footer-top { grid-template-columns: 1fr; gap: 26px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .footer-bottom span:last-child { font-size: 12px; }
    .btn-lg { height: 48px; font-size: 15px; }
    .cta-card { padding: 34px 22px; }
    .cta-copy h2 { font-size: 22px; }
    .ticker-wrap { align-items: flex-start; flex-direction: column; gap: 10px; }
    .ticker-title { font-size: 16px; }
    .ticker-items { gap: 24px; }
}

/* roulang page: category2 */
:root {
  --primary: #2f6f91;
  --primary-dark: #255b77;
  --primary-light: #e8f0f5;
  --accent: #d69a4f;
  --accent-dark: #b87c2d;
  --bg-soft: #f3f6f8;
  --bg-deep: #20313e;
  --text: #30363d;
  --muted: #6c747c;
  --border: #dfe5ea;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(25, 35, 45, .04);
  --shadow-md: 0 8px 20px rgba(25, 35, 45, .08);
  --shadow-lg: 0 16px 36px rgba(25, 35, 45, .13);
  --transition: .22s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

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

ul,
ol,
dl,
p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

button {
  font-family: var(--font-sans);
  border: 0;
  cursor: pointer;
}

.wrap,
.grid-container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.main {
  overflow: hidden;
}

/* ---------- sections ---------- */
.section {
  padding: 92px 0;
}

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

.section-head {
  max-width: 820px;
  margin: 0 auto 50px;
  text-align: center;
}

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

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--primary);
  background: rgba(47, 111, 145, .09);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: #1d2a35;
}

.section-desc {
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.center {
  text-align: center;
}

/* ---------- button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  transition: all var(--transition);
  outline: 0;
}

.btn:focus-visible {
  outline: 3px solid rgba(47, 111, 145, .25);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(47, 111, 145, .24);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(47, 111, 145, .28);
}

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

.btn-outline {
  border-color: rgba(255, 255, 255, .8);
  color: #fff;
  background: transparent;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, .14);
  border-color: #fff;
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
}

.btn-light:hover {
  background: #f2f7fa;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(12, 38, 58, .16);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(1.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 24px;
}

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

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 7px;
}

.header-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: #3a454f;
}

.header-nav a:hover {
  color: var(--primary);
  background: rgba(47, 111, 145, .07);
}

.header-nav a.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary-dark);
  border-radius: 999px;
  position: relative;
  transition: all var(--transition);
}

.nav-toggle span {
  background: var(--primary-dark);
}

.nav-toggle span::before {
  position: absolute;
  top: -7px;
  left: 0;
}

.nav-toggle span::after {
  position: absolute;
  top: 7px;
  left: 0;
}

.nav-open .nav-toggle span {
  background: transparent;
}

.nav-open .nav-toggle span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-open .nav-toggle span::after {
  top: 0;
  transform: rotate(-45deg);
}

.header-cta {
  flex-shrink: 0;
}

.header-cta .btn {
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

/* ---------- hero ---------- */
.page-hero {
  background-image: radial-gradient(circle at 78% 20%, rgba(255, 255, 255, .15) 0%, transparent 28%), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  position: relative;
}

.hero-backdrop {
  background: linear-gradient(112deg, rgba(27, 48, 63, .92) 0%, rgba(32, 59, 76, .78) 62%, rgba(38, 73, 94, .6) 100%);
  padding: 108px 0 112px;
}

.hero-content {
  max-width: 720px;
}

.hero-kicker {
  display: inline-block;
  font-size: 14px;
  letter-spacing: .08em;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #f2f7fa;
  margin-bottom: 22px;
}

.hero-content h1 {
  font-size: clamp(30px, 5.4vw, 46px);
  line-height: 1.24;
  font-weight: 700;
  color: #fff;
  margin: 0 0 22px;
  letter-spacing: -0.01em;
}

.hero-content p {
  font-size: 18px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .88);
  margin-bottom: 34px;
}

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

.hero-mini-note {
  margin-top: 18px;
  color: rgba(255, 255, 255, .66);
  font-size: 14px;
}

/* ---------- intro split ---------- */
.intro-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 58px;
  align-items: center;
}

.intro-copy h2 {
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.35;
  font-weight: 700;
  color: #1d2a35;
  margin: 12px 0 16px;
}

.intro-copy > p {
  color: var(--muted);
  line-height: 1.9;
  margin: 0 0 26px;
}

.check-list {
  list-style: none;
  margin: 0;
}

.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 9px 0;
  color: #3d4953;
}

.check-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border-radius: 50%;
  background: var(--primary-light);
  position: relative;
}

.check-list li::after {
  content: "✓";
  position: absolute;
  margin-left: 6px;
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  line-height: 1;
  pointer-events: none;
}

.check-list li span {
  display: block;
}

.check-list strong {
  color: #28313a;
  font-weight: 600;
}

.intro-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.intro-media img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  background: #dfe7ed;
}

.intro-media .media-note {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(32, 49, 62, .85);
  color: #fff;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, .2);
}

/* ---------- feature card ---------- */
.feature-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cddbe4;
}

.feature-card__media {
  height: 200px;
  background: #dfe7ed;
  position: relative;
  overflow: hidden;
}

.feature-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

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

.feature-card__body {
  padding: 26px 24px 24px;
  display: flex;
  flex: 1;
  flex-direction: column;
}

.feature-card__tag {
  align-self: flex-start;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
  color: #1e2933;
}

.feature-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  flex: 1;
}

.card-link {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  margin-top: 18px;
  transition: all var(--transition);
}

.card-link:hover {
  color: var(--accent-dark);
}

.grid-x {
  row-gap: 24px;
}

/* ---------- flow ---------- */
.flow-section {
  background: var(--bg-deep);
  color: #fff;
}

.flow-title {
  color: #fff;
}

.flow-section .section-desc {
  color: rgba(255, 255, 255, .7);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 46px;
}

.flow-step {
  position: relative;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: all var(--transition);
}

.flow-step:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateY(-4px);
}

.flow-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #fff;
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 17px;
  margin-bottom: 20px;
}

.flow-step h3 {
  font-size: 19px;
  margin-bottom: 12px;
  color: #fff;
}

.flow-step p {
  color: rgba(255, 255, 255, .72);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- scenario ---------- */
.scenario-card {
  height: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.scenario-card:hover {
  box-shadow: var(--shadow-md);
}

.scenario-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.scenario-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #1d2a35;
  margin-bottom: 10px;
}

.scenario-card p {
  color: var(--muted);
  line-height: 1.85;
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
}

.cta-inner {
  padding: 72px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.cta-copy h2 {
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  color: #1d2a35;
  line-height: 1.35;
  margin-bottom: 14px;
}

.cta-copy p {
  color: var(--muted);
  font-size: 16px;
  max-width: 640px;
}

.cta-action {
  flex-shrink: 0;
  text-align: right;
}

.cta-note {
  display: block;
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.cta-note a {
  color: var(--primary-dark);
  font-weight: 600;
}

.cta-note a:hover {
  color: var(--accent-dark);
}

/* ---------- FAQ ---------- */
.faq-wrap {
  background: #fff;
}

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

.faq-item {
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item[open] {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: #26333e;
  list-style: none;
  transition: color var(--transition);
}

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

.faq-item summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-size: 20px;
  color: var(--primary);
  transition: transform .25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(135deg);
}

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

.faq-answer {
  padding: 0 26px 24px;
  color: var(--muted);
  line-height: 1.9;
}

.faq-answer a {
  color: var(--primary);
  font-weight: 600;
}

.faq-answer a:hover {
  color: var(--accent-dark);
}

/* ---------- footer ---------- */
.site-footer {
  background: var(--bg-deep);
  color: #c8d2da;
  font-size: 15px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 36px;
}

.footer-brand .brand-logo {
  margin-bottom: 20px;
}

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

.footer-brand .brand-icon {
  background: #fff;
  color: var(--bg-deep);
}

.footer-brand p {
  color: #9dacb6;
  line-height: 1.9;
  max-width: 430px;
  font-size: 14px;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.footer-link-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.footer-link-list a {
  color: #a9b7c0;
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: #93a3ae;
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding: 18px 0;
}

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .header-nav {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: #fff;
    padding: 12px 20px 22px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all .25s ease;
  }

  .header-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .header-nav a {
    display: block;
    padding: 10px 16px;
    border-radius: 10px;
  }

  .header-nav a.active {
    background: var(--primary-light);
  }

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

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

  .intro-media img {
    height: 320px;
  }

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

  .flow-step:last-child {
    grid-column: auto;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 60px 0;
  }

  .cta-action {
    text-align: left;
  }

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

@media (max-width: 767px) {
  .section {
    padding: 64px 0;
  }

  .hero-backdrop {
    padding: 72px 0 78px;
  }

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

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

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

  .flow-grid .flow-step:last-child {
    grid-column: auto;
  }

  .cta-copy p {
    font-size: 15px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 44px 0 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .header-inner {
    gap: 10px;
  }

  .logo-text {
    font-size: 15px;
  }

  .logo-sub {
    font-size: 11px;
  }

  .brand-icon {
    width: 38px;
    height: 38px;
  }

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

  .section-head {
    margin-bottom: 34px;
  }

  .feature-card__media {
    height: 180px;
  }
}