/* roulang page: index */
:root {
  --primary: #2f6c8f;
  --primary-dark: #285b7a;
  --primary-light: #dfedf5;
  --page-bg: #f5fafc;
  --card-bg: #ffffff;
  --border: #dfe9ef;
  --text: #21303c;
  --muted: #5c7180;
  --accent: #b97a4a;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 1px 3px rgba(21,42,60,.05), 0 8px 24px rgba(21,42,60,.06);
  --shadow-hover: 0 4px 12px rgba(21,42,60,.08), 0 16px 32px rgba(21,42,60,.1);
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--page-bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main {
  flex: 1 0 auto;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}
a:hover {
  color: var(--primary);
}
img {
  max-width: 100%;
  display: block;
}
button {
  border: 0;
  background: transparent;
  font-family: inherit;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
p {
  margin: 0;
}
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 12px;
  font-weight: 700;
  line-height: 1.4;
}
.container {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
.section {
  padding: 96px 0;
}
.section-white {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 5px 16px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .04em;
  margin-bottom: 14px;
}
.section-label i {
  font-size: 13px;
}
.section-head {
  max-width: 900px;
  margin-bottom: 42px;
}
.section-head h2 {
  font-size: 34px;
  line-height: 1.3;
  letter-spacing: -.01em;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--muted);
  font-size: 17px;
}
.section-head.left {
  margin-bottom: 28px;
}

/* ---------- Buttons ---------- */
.btn-main,
.btn-outline,
.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .22s ease;
  white-space: nowrap;
}
.btn-main {
  background: var(--primary);
  color: #fff;
}
.btn-main:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(47,108,143,.25);
}
.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(47,108,143,.16);
}
.btn-accent {
  background: #fff;
  border-color: var(--accent);
  color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(185,122,74,.25);
}
.btn-main:active,
.btn-outline:active,
.btn-accent:active {
  transform: translateY(0);
  box-shadow: none;
}
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47,108,143,.35);
  outline-offset: 2px;
}

/* ---------- Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1030;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(223,233,239,.85);
}
.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
}
.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--primary);
  white-space: nowrap;
  line-height: 1.2;
}
.header-logo:hover {
  color: var(--primary-dark);
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 14px rgba(47,108,143,.24);
}
.main-nav {
  display: flex;
  justify-content: flex-end;
  flex: 1;
}
.main-nav ul {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.main-nav li a {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  line-height: 1.3;
  transition: background .2s ease, color .2s ease;
}
.main-nav li a:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.main-nav li a.is-active {
  color: var(--primary);
  position: relative;
}
.main-nav li a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 2px;
  width: 20px;
  height: 4px;
  border-radius: 9px;
  background: var(--primary);
}
.navbar-toggler {
  display: none;
  width: 46px;
  height: 42px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  transition: all .2s ease;
}
.navbar-toggler:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.navbar-toggler .toggler-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
  transition: transform .2s ease, opacity .2s ease;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  display: flex;
  align-items: center;
  background-color: #fff;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.97) 0%, rgba(255,255,255,.82) 44%, rgba(255,255,255,.28) 78%, rgba(255,255,255,.1) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: 78% center;
  background-repeat: no-repeat;
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(245,250,252,.9), transparent 60%);
  pointer-events: none;
}
.hero-container {
  position: relative;
  z-index: 1;
  padding-top: 64px;
  padding-bottom: 64px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .05em;
  padding: 7px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--primary-dark);
  margin-bottom: 22px;
  box-shadow: 0 2px 8px rgba(21,42,60,.04);
}
.hero-title {
  font-size: 44px;
  line-height: 1.28;
  letter-spacing: -.01em;
  margin-bottom: 22px;
  max-width: 720px;
}
.hero-title strong {
  color: var(--primary);
}
.hero-lead {
  font-size: 18px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 650px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.hero-stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 40px;
}
.hero-stat {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(255,255,255,.8);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
}
.hero-stat i {
  color: var(--primary);
}

/* Hero directory card */
.hero-card-wrap {
  display: flex;
  justify-content: flex-end;
}
.dir-card {
  width: 100%;
  max-width: 390px;
  background: rgba(255,255,255,.94);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  border: 1px solid rgba(255,255,255,.9);
  padding: 8px;
  backdrop-filter: blur(8px);
}
.dir-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 8px;
  font-weight: 700;
  color: var(--text);
}
.dir-card-head span {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
}
.dir-card-body {
  padding: 6px 8px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dir-card-body a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 14px;
  border-radius: 13px;
  transition: background .2s ease, transform .2s ease;
  border: 1px solid transparent;
}
.dir-card-body a:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-1px);
}
.dir-card-body a .dir-name {
  font-weight: 700;
  font-size: 16px;
  color: inherit;
}
.dir-card-body a .dir-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}
.dir-card-body a i {
  color: var(--primary);
  flex-shrink: 0;
  font-size: 15px;
}
.dir-card-foot {
  border-top: 1px dashed var(--border);
  padding: 10px 18px;
  font-size: 14px;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 9px;
  background: rgba(245,250,252,.75);
  border-radius: 0 0 14px 14px;
}
.dir-card-foot a {
  font-weight: 600;
  color: var(--primary);
}
.dir-card-foot a:hover {
  color: var(--primary-dark);
}

/* ---------- latest news ---------- */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto;
}
.news-card {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--card-bg);
  border: 1px solid rgba(223,233,239,.8);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  box-shadow: var(--shadow-card);
  transition: transform .24s ease, box-shadow .24s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.news-card:hover .news-arrow {
  background: var(--primary);
  color: #fff;
}
.news-label {
  min-width: 120px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.news-tag {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 2px 13px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.news-date {
  font-size: 14px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.news-date i {
  font-size: 13px;
}
.news-main {
  flex: 1;
  min-width: 0;
}
.news-main h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text);
  line-height: 1.5;
  transition: color .2s ease;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover .news-main h3 {
  color: var(--primary);
}
.news-main p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-arrow {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(47,108,143,.12);
  transition: all .24s ease;
}
.news-empty {
  border: 1.5px dashed var(--border);
  background: #fbfdfe;
  border-radius: var(--radius-md);
  padding: 54px 24px;
  text-align: center;
  color: var(--muted);
  max-width: 760px;
  margin: 0 auto;
}
.news-empty i {
  font-size: 34px;
  color: var(--primary);
  margin-bottom: 14px;
  display: block;
}
.news-empty .empty-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

/* ---------- featured cards ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.feature-card-main {
  position: relative;
  min-height: 520px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.feature-card,
.feature-card-mini {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.feature-card-main img,
.feature-card-mini img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature-card-main:after,
.feature-card-mini:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(33,48,60,.1), rgba(33,48,60,.72));
}
.feature-body {
  position: relative;
  z-index: 1;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  height: 100%;
  color: #fff;
  background: transparent;
}
.feature-body h3 {
  font-size: 24px;
  color: #fff;
  margin-bottom: 8px;
}
.feature-body p {
  color: rgba(255,255,255,.88);
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 16px;
}
.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
}
.feature-link i {
  transition: transform .2s ease;
}
.feature-link:hover {
  color: #fff;
  opacity: .86;
}
.feature-link:hover i {
  transform: translateX(4px);
}
.feature-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.feature-card-mini {
  min-height: 226px;
  flex: 1;
}
.feature-card-mini .feature-body {
  padding: 22px;
}
.feature-card-mini h4 {
  font-size: 19px;
  color: #fff;
  margin-bottom: 4px;
}
.feature-card-mini p {
  font-size: 14px;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.feature-tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 2px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.22);
  border: 1px solid rgba(255,255,255,.5);
  margin-bottom: auto;
  font-size: 13px;
  font-weight: 600;
}

/* ---------- Service section ---------- */
.service-panel {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 48px;
  align-items: center;
}
.service-feature-list {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.service-feature-list li {
  display: flex;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  padding: 16px 18px;
  border-radius: 13px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.service-feature-list li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.service-feature-list strong {
  font-size: 17px;
}
.service-feature-list p {
  font-size: 15px;
  color: var(--muted);
}
.service-feature-list i {
  color: var(--primary);
  font-size: 20px;
  margin-top: 4px;
}
.stage-panel {
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
  box-shadow: 0 16px 32px rgba(40,91,122,.2);
}
.stage-panel .stage-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 24px;
  color: #fff;
}
.stage-item {
  border-top: 1px solid rgba(255,255,255,.22);
  padding: 18px 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: flex-start;
}
.stage-item .index {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.4);
  font-size: 15px;
  font-weight: 700;
}
.stage-item strong {
  display: block;
  margin-bottom: 3px;
  color: #fff;
  font-size: 16px;
}
.stage-item p {
  color: rgba(255,255,255,.78);
  font-size: 15px;
  line-height: 1.7;
}
.stage-note {
  background: rgba(255,255,255,.1);
  border-radius: 13px;
  padding: 14px 16px;
  font-size: 14px;
  color: #f1f6f9;
  margin-top: 14px;
}
.stage-note i {
  color: #f5d7ba;
}

/* ---------- Activities ---------- */
.activity-board {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 34px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 36px;
}
.activity-board .act-left h3 {
  font-size: 24px;
}
.activity-board .act-left p {
  color: var(--muted);
  margin-bottom: 16px;
}
.act-call {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(245,250,252,.8);
  border-radius: 13px;
  margin-top: 12px;
}
.act-call i {
  color: var(--accent);
  font-size: 18px;
  margin-top: 4px;
}
.act-call strong {
  display: block;
}
.act-call span {
  color: var(--muted);
  font-size: 15px;
}
.act-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.act-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--border);
  padding: 16px 4px;
  color: var(--text);
  transition: padding .2s ease, background .2s ease, color .2s ease;
}
.act-list a:last-child {
  border-bottom: 0;
}
.act-list a:hover {
  color: var(--primary);
  padding-left: 10px;
  background: linear-gradient(90deg, var(--primary-light), transparent);
  border-radius: 10px;
}
.act-list .list-main strong {
  font-size: 17px;
}
.act-list .list-main span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}
.act-badge {
  flex-shrink: 0;
  color: var(--primary-dark);
  background: var(--primary-light);
  font-size: 13px;
  border-radius: 999px;
  padding: 3px 12px;
  font-weight: 600;
}
.activity-cta {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px dashed var(--border);
  padding-top: 20px;
}
.activity-cta p {
  color: var(--muted);
  font-size: 15px;
}
.activity-cta p strong {
  color: var(--text);
}

/* ---------- directory ---------- */
.directory-row {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 50px;
  align-items: center;
}
.directory-intro .section-head h2 {
  font-size: 34px;
}
.directory-intro .section-head p {
  color: var(--muted);
}
.directory-links {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.directory-links a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease;
}
.directory-links a:last-child {
  border-bottom: 0;
}
.directory-links a:hover {
  background: var(--primary-light);
}
.dir-icon {
  width: 50px;
  height: 50px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  flex-shrink: 0;
}
.directory-links a:nth-child(2) .dir-icon,
.directory-links a:nth-child(4) .dir-icon {
  background: #f5e9e1;
  color: var(--accent);
}
.dir-text {
  flex: 1;
}
.dir-text strong {
  font-size: 18px;
  display: block;
  margin-bottom: 2px;
}
.dir-text span {
  font-size: 15px;
  color: var(--muted);
}
.directory-links > a > i {
  color: var(--primary);
}

/* ---------- FAQ ---------- */
.faq-panel {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.faq-intro p {
  color: var(--muted);
  font-size: 17px;
  max-width: 360px;
}
.faq-intro a {
  color: var(--primary);
  font-weight: 600;
}
.faq-list {
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
  border-radius: 8px;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question .faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform .25s ease;
}
.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 4px 12px 22px 12px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.95;
}
.faq-answer.collapsing {
  padding-bottom: 0;
}
.faq-answer.collapse.show {
  padding-bottom: 22px;
}

/* ---------- Collect CTA ---------- */
.collect-panel {
  max-width: 1000px;
  margin: 0 auto;
  border-radius: 24px;
  background: linear-gradient(145deg, #ffffff 0%, #eef6fb 100%);
  border: 1px solid var(--border);
  padding: 44px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-card);
}
.collect-panel .collect-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
  margin-bottom: 10px;
}
.collect-panel h2 {
  font-size: 28px;
}
.collect-panel > div:first-child p {
  color: var(--muted);
  max-width: 540px;
  font-size: 16px;
}
.collect-panel .collect-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.collect-msg {
  display: none;
  width: 100%;
  margin-top: 16px;
  background: #fff;
  border: 1px solid #cbe4d4;
  color: #2f6f5b;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 14px;
}
.collect-msg.show {
  display: block;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 48px 0 20px;
}
.footer-inner-top {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 21px;
  margin-bottom: 8px;
}
.footer-brand-name i {
  color: var(--primary);
}
.site-footer .footer-brand p {
  color: var(--muted);
  max-width: 440px;
  font-size: 15px;
}
.footer-nav {
  display: flex;
  justify-content: flex-end;
}
.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  justify-content: flex-start;
}
.footer-nav a {
  display: inline-block;
  color: var(--muted);
  font-size: 15px;
  padding: 5px 4px;
  position: relative;
}
.footer-nav a:hover {
  color: var(--primary);
}
.footer-nav a::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .22s ease;
}
.footer-nav a:hover::after {
  transform: scaleX(1);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 20px;
  padding-top: 20px;
  color: var(--muted);
  font-size: 14px;
}
.footer-bottom .footer-corner {
  color: var(--primary);
  font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (min-width: 992px) {
  .main-nav {
    display: flex !important;
    flex-direction: row;
  }
  .main-nav.collapse:not(.show) {
    display: flex !important;
    flex-direction: row;
  }
}
@media (max-width: 991.98px) {
  .navbar-toggler {
    display: inline-flex;
  }
  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    z-index: 1090;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(21,42,60,.14);
    overflow: hidden;
  }
  .main-nav.collapse:not(.show) {
    display: none !important;
  }
  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    gap: 2px;
  }
  .main-nav li a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 16px;
    font-size: 16px;
    border-radius: 10px;
  }
  .main-nav li a.is-active {
    background: var(--primary-light);
  }
  .main-nav li a.is-active::after {
    content: none;
  }
  .hero {
    background-position: 74% top;
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-title br {
    display: none;
  }
  .directory-row,
  .faq-panel,
  .activity-board,
  .service-panel {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .directory-links {
    margin-top: 10px;
  }
  .section {
    padding: 64px 0;
  }
  .footer-inner-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-nav {
    justify-content: flex-start;
  }
}
@media (max-width: 767.98px) {
  .section {
    padding: 52px 0;
  }
  .hero {
    min-height: auto;
    background-image:
      linear-gradient(180deg, rgba(255,255,255,.97) 0%, rgba(255,255,255,.92) 35%, rgba(255,255,255,.78) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-position: center top;
    background-size: cover;
  }
  .hero-title {
    font-size: 30px;
    line-height: 1.4;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-container {
    padding: 58px 0 54px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card-main {
    min-height: 400px;
  }
  .feature-card-mini {
    min-height: 230px;
  }
  .collect-panel {
    padding: 34px 24px;
  }
  .news-card {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 20px;
  }
  .news-label {
    min-width: 0;
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }
  .news-arrow {
    display: none;
  }
  .news-main h3 {
    -webkit-line-clamp: 2;
  }
  .activity-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  .faq-panel {
    gap: 20px;
  }
  .faq-question {
    padding: 18px 6px;
    font-size: 16px;
  }
}
@media (max-width: 575.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-container {
    padding: 0 16px;
  }
  .header-logo {
    font-size: 18px;
    gap: 8px;
  }
  .logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 11px;
    font-size: 16px;
  }
  .section-head h2 {
    font-size: 25px;
  }
  .feature-card-main {
    min-height: 340px;
  }
  .feature-card-main .feature-body {
    padding: 22px;
  }
  .feature-card-main .feature-body h3 {
    font-size: 20px;
  }
  .feature-card-main .feature-body p,
  .feature-card-mini p {
    font-size: 14px;
  }
  .activity-board {
    padding: 18px;
  }
  .btn-main,
  .btn-outline,
  .btn-accent {
    width: 100%;
    justify-content: center;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .collect-panel .collect-actions {
    width: 100%;
  }
  .collect-panel .collect-actions .btn {
    width: 100%;
  }
  .stage-panel {
    padding: 24px 18px;
  }
  .directory-links a {
    padding: 16px;
  }
}

/* roulang page: article */
/* ========== design tokens ========== */
:root {
  --c-primary: #2F6C8F;
  --c-primary-deep: #285B7A;
  --c-primary-light: #DFEDF5;
  --c-primary-mist: #EDF5FA;
  --c-bg: #F5FAFC;
  --c-card: #FFFFFF;
  --c-border: #DFE9EF;
  --c-text: #21303C;
  --c-text-light: #5C7180;
  --c-accent: #B97A4A;
  --c-accent-light: #F6E7DA;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 3px rgba(21,42,60,0.05), 0 8px 24px rgba(21,42,60,0.06);
  --shadow-hover: 0 4px 12px rgba(21,42,60,0.08), 0 16px 32px rgba(21,42,60,0.10);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
}
/* ========== reset / base ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--c-primary-deep); }
img { max-width: 100%; height: auto; display: block; }
button, input, select { font-family: inherit; }
p, h1, h2, h3, h4, h5, h6, ul, ol, figure { margin: 0 0 1rem; }
ul[class], ol[class] { padding: 0; list-style: none; }
:focus-visible { outline: 3px solid rgba(47,108,143,.35); outline-offset: 2px; border-radius: 6px; }
.container { max-width: 1280px; padding-left: 24px; padding-right: 24px; }
.container-narrow { max-width: 880px; }
/* ========== buttons / labels ========== */
.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  border: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.site-btn i { font-size: 14px; }
.site-btn-primary { background: var(--c-primary); color: #fff; }
.site-btn-primary:hover { background: var(--c-primary-deep); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(47,108,143,.25); }
.site-btn-secondary { background: #fff; border: 1px solid var(--c-primary); color: var(--c-primary); }
.site-btn-secondary:hover { background: var(--c-primary-light); border-color: var(--c-primary-deep); color: var(--c-primary-deep); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(47,108,143,.12); }
.site-btn-accent { background: transparent; border: 1px solid var(--c-accent); color: var(--c-accent); }
.site-btn-accent:hover { background: var(--c-accent); border-color: var(--c-accent); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 16px rgba(185,122,74,.2); }
.site-btn-sm { height: 38px; padding: 0 18px; font-size: 14px; border-radius: 8px; }
.site-btn-lg { height: 50px; padding: 0 30px; font-size: 16px; border-radius: 12px; }
/* chips / badge */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--c-primary-light);
  color: var(--c-primary-deep);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
}
.chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-accent); }
.chip-outline { background: transparent; border: 1px solid var(--c-border); color: var(--c-text-light); font-weight: 500; }
/* ========== header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223,233,239,.9);
}
.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
}
.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  font-size: 22px;
  color: var(--c-primary);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .5px;
}
.header-logo:hover { color: var(--c-primary-deep); }
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--c-primary-light);
  color: var(--c-primary);
  font-size: 18px;
  border-radius: 12px;
  flex: none;
}
.brand-text { max-width: 220px; }
.navbar-toggler {
  display: none;
  border: 0;
  background: transparent;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  padding: 8px;
}
.navbar-toggler:hover { background: var(--c-primary-light); }
.toggler-line { display: block; height: 2px; width: 20px; background: var(--c-primary); margin-left: auto; margin-right: auto; border-radius: 4px; }
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; align-items: center; gap: 6px; margin: 0; padding: 0; list-style: none; }
.main-nav a {
  position: relative;
  display: block;
  padding: 10px 16px;
  color: var(--c-text);
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  line-height: 24px;
  transition: color .25s, background .25s;
}
.main-nav a i { margin-right: 6px; color: var(--c-text-light); font-size: 14px; }
.main-nav a:hover { background: var(--c-primary-light); color: var(--c-primary-deep); }
.main-nav a.is-active { color: var(--c-primary); }
.main-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--c-primary);
  border-radius: var(--radius-pill);
}
.main-nav a.is-active i { color: var(--c-primary); }
@media (max-width: 991px) {
  .navbar-toggler { display: flex; }
  .header-container { flex-wrap: wrap; min-height: 72px; padding-top: 6px; padding-bottom: 6px; }
  .header-logo { font-size: 18px; min-height: 48px; }
  .logo-mark { width: 36px; height: 36px; font-size: 15px; }
  .main-nav { display: contents; }
  .main-nav.collapse:not(.show) { display: none; }
  .main-nav.show {
    display: block;
    width: 100%;
    order: 3;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--c-border);
    margin: 8px 0 8px;
    padding: 8px;
  }
  .main-nav ul { flex-direction: column; align-items: stretch; }
  .main-nav a { padding: 13px 16px; font-size: 16px; }
  .main-nav a.is-active::after { left: 16px; transform: none; width: 4px; height: 22px; top: 50%; bottom: auto; translate: 0 -50%; }
}
@media (max-width: 520px) {
  .header-container { padding-left: 16px; padding-right: 16px; }
  .brand-text { max-width: 165px; font-size: 17px; }
}
/* ========== breadcrumb ========== */
.breadcrumb-bar {
  padding: 34px 0 0;
  background: transparent;
  margin-bottom: 0;
}
.breadcrumb-bar .container-narrow { max-width: 880px; }
.breadcrumb-custom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-text-light);
}
.breadcrumb-custom a { color: var(--c-text-light); }
.breadcrumb-custom a:hover { color: var(--c-primary); }
.breadcrumb-custom i { font-size: 11px; color: #B3C4CF; margin: 0 3px; }
.breadcrumb-custom .current { color: var(--c-text); font-weight: 600; }
/* ========== article header card ========== */
.article-page {
  background: var(--c-bg);
  padding-bottom: 96px;
}
.article-hero {
  background: #fff;
  border-bottom: 1px solid var(--c-border);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(223,237,245,.9) 0%, rgba(223,237,245,0) 68%);
  pointer-events: none;
}
.article-hero-inner { position: relative; z-index: 1; }
.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.article-h1 {
  font-size: clamp(28px, 2.4vw, 42px);
  line-height: 1.3;
  color: var(--c-text);
  font-weight: 700;
  max-width: 860px;
  letter-spacing: -.01em;
  margin-bottom: 18px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  color: var(--c-text-light);
  font-size: 15px;
}
.article-meta i { color: var(--c-primary); margin-right: 6px; }
.article-excerpt {
  max-width: 900px;
  color: var(--c-text-light);
  font-size: 17px;
  line-height: 1.9;
  border-left: 3px solid var(--c-accent);
  padding-left: 16px;
  margin-top: 18px;
}
/* ========== article content ========== */
.article-main {
  padding-top: 60px;
}
.article-main .container-narrow {
  max-width: 880px;
}
.article-body {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 4vw, 56px);
  box-shadow: var(--shadow-card);
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-text);
  overflow-wrap: break-word;
}
.article-body h2, .article-body h3, .article-body h4 {
  color: var(--c-text);
  font-weight: 700;
  line-height: 1.35;
  margin-top: 2.2em;
  margin-bottom: 1em;
}
.article-body h2 { font-size: 26px; letter-spacing: .01em; }
.article-body h3 { font-size: 22px; }
.article-body h4 { font-size: 19px; }
.article-body p { margin-bottom: 1.6em; }
.article-body a { text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(47,108,143,.3); }
.article-body a:hover { text-decoration-color: var(--c-primary); }
.article-body ul, .article-body ol { margin-bottom: 1.6em; }
.article-body ul li { padding-left: 6px; margin-bottom: .8em; }
.article-body blockquote {
  margin: 32px 0;
  padding: 22px 24px 22px 28px;
  border-left: 4px solid var(--c-primary);
  background: var(--c-primary-light);
  border-radius: 0 14px 14px 0;
  color: var(--c-text);
}
.article-body img {
  border-radius: 14px;
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}
.article-body pre {
  background: #111B26;
  color: #DDE9F2;
  border-radius: 14px;
  padding: 20px 22px;
  overflow: auto;
  line-height: 1.7;
  font-size: 14px;
  margin: 24px 0;
}
.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 24px 0;
  border-radius: 12px;
  border: 1px solid var(--c-border);
  overflow: hidden;
  font-size: 15px;
}
.article-body th, .article-body td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
}
.article-body th {
  background: var(--c-primary-light);
  font-weight: 600;
  color: var(--c-primary-deep);
}
.article-body tr:last-child td { border-bottom: 0; }
/* not found */
.not-found-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--c-border);
  padding: 72px 32px;
  text-align: center;
  box-shadow: none;
}
.not-found-panel i {
  color: var(--c-primary);
  opacity: .75;
  margin-bottom: 20px;
}
/* article rail */
.article-rail {
  margin-top: 48px;
}
.rail-box {
  background: #fff;
  border-radius: 16px;
  border: 1px solid var(--c-border);
  padding: 26px;
  box-shadow: var(--shadow-card);
}
.rail-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
}
.back-catalogue {
  margin-bottom: 40px;
  display: flex;
  justify-content: flex-end;
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.related-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  gap: 14px;
  position: relative;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.related-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--c-primary-light);
}
.related-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--c-primary-light);
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex: none;
}
.related-name { font-size: 16px; font-weight: 600; line-height: 1.4; margin-bottom: 4px; color: var(--c-text); }
.related-desc { font-size: 14px; color: var(--c-text-light); line-height: 1.45; margin: 0; }
@media (max-width: 991px) {
  .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .related-grid { grid-template-columns: 1fr; }
  .article-body { padding: 24px 18px; }
  .article-body h2 { font-size: 22px; }
  .article-h1 { font-size: 27px; }
}
/* ========== CTA / page cta ========== */
.cta-panel {
  margin-top: 80px;
}
.cta-inner {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
}
.cta-inner::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--c-primary-light);
  opacity: .6;
}
.cta-content { position: relative; z-index: 1; flex: 1; min-width: 260px; }
.cta-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px; }
.cta-panel-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.cta-panel-text { color: var(--c-text-light); margin-bottom: 0; }
/* ========== footer ========== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--c-border);
  padding: 72px 0 34px;
  font-size: 15px;
}
.footer-inner-top {
  display: flex;
  justify-content: space-between;
  gap: 48px 24px;
  flex-wrap: wrap;
}
.footer-brand { width: 100%; max-width: 580px; }
.footer-brand-name {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 15px;
}
.footer-brand-name i { color: var(--c-accent); font-size: 18px; }
.footer-brand p { color: var(--c-text-light); line-height: 1.9; margin: 0; }
.footer-nav { flex: 1; min-width: 220px; display: flex; justify-content: flex-end; }
.footer-nav ul { list-style: none; display: flex; gap: 8px 12px; flex-wrap: wrap; justify-content: flex-end; margin: 0; }
.footer-nav a {
  display: inline-block;
  padding: 8px 10px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  border-radius: 8px;
  line-height: 1.3;
}
.footer-nav a:hover { color: var(--c-primary); background: var(--c-primary-light); }
.footer-bottom {
  margin-top: 58px;
  padding-top: 24px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  color: var(--c-text-light);
  font-size: 14px;
}
.footer-corner { color: var(--c-primary); font-weight: 600; letter-spacing: .02em; }
@media (max-width: 768px) {
  .footer-inner-top { flex-direction: column; gap: 30px; }
  .footer-nav { justify-content: flex-start; width: 100%; }
  .footer-nav ul { justify-content: flex-start; }
  .site-footer { padding-top: 48px; }
}

/* roulang page: category1 */
:root{
  --primary:#2F6C8F;
  --primary-deep:#285B7A;
  --primary-light:#DFEDF5;
  --page-bg:#F5FAFC;
  --card-bg:#FFFFFF;
  --border-color:#DFE9EF;
  --text-main:#21303C;
  --text-weak:#5C7180;
  --accent:#B97A4A;
  --radius-large:20px;
  --radius-medium:14px;
  --radius-btn:10px;
  --radius-tag:999px;
  --shadow-card:0 1px 3px rgba(21,42,60,.05),0 8px 24px rgba(21,42,60,.06);
  --shadow-hover:0 4px 12px rgba(21,42,60,.08),0 16px 32px rgba(21,42,60,.10);
  --transition:all .25s ease;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

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

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

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

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

ul,ol{
  margin:0;
  padding:0;
  list-style:none;
}

.container{
  max-width:1280px;
  padding-left:24px;
  padding-right:24px;
}

/* ===== 顶部导航 ===== */
.site-header{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border-color);
  position:sticky;
  top:0;
  z-index:1040;
}

.header-container{
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

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

.logo-mark{
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--primary-light);
  color:var(--primary);
  font-size:21px;
  border-radius:12px;
  transform:rotate(-4deg);
}

.brand-text{
  color:var(--primary);
  font-weight:800;
  font-size:20px;
  letter-spacing:.02em;
  line-height:1.3;
}

.navbar-toggler{
  background:none;
  border:1px solid var(--border-color);
  width:44px;
  height:44px;
  border-radius:10px;
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  padding:0;
  outline:none;
}

.navbar-toggler span{
  display:block;
  width:18px;
  height:2px;
  background:var(--primary);
  border-radius:4px;
  transition:var(--transition);
}

.main-nav ul{
  display:flex;
  align-items:center;
  gap:8px;
}

.main-nav li a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:8px 16px;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  border-radius:8px;
  position:relative;
}

.main-nav li a:hover{
  background:var(--primary-light);
  color:var(--primary);
}

.main-nav li a.is-active{
  color:var(--primary);
}

.main-nav li a.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:-1px;
  height:3px;
  background:var(--primary);
  border-radius:3px 3px 0 0;
}

.main-nav li a:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

/* ===== 分类封面 Hero ===== */
.category-hero{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:center;
  padding:64px 0 56px;
  background:linear-gradient(90deg, rgba(255,255,255,.95) 0%, rgba(245,250,252,.78) 55%, rgba(223,237,245,.62) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--border-color);
}

.category-hero .crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  margin-bottom:28px;
  color:var(--text-weak);
}

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

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

.category-hero .crumb .crumb-icon{
  color:var(--primary);
  font-size:11px;
}

.category-hero .crumb .current{
  color:var(--text-main);
  font-weight:600;
}

.category-hero h1{
  font-size:44px;
  font-weight:800;
  line-height:1.25;
  margin-bottom:18px;
  color:var(--text-main);
  letter-spacing:-.02em;
}

.hero-description{
  font-size:17px;
  max-width:620px;
  line-height:1.9;
  color:var(--text-main);
  margin-bottom:26px;
}

.hero-meta-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.hero-meta-tags span{
  background:rgba(255,255,255,.85);
  border:1px solid var(--border-color);
  border-radius:var(--radius-tag);
  padding:7px 14px;
  font-size:14px;
  color:var(--text-weak);
  box-shadow:0 1px 4px rgba(21,42,60,.04);
}

.hero-info-card{
  background:rgba(255,255,255,.9);
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  padding:24px 26px;
  box-shadow:var(--shadow-card);
}

.hero-info-card .card-name{
  font-size:13px;
  color:var(--text-weak);
  letter-spacing:.08em;
  text-transform:uppercase;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
  font-weight:600;
}

.hero-info-card ul li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:10px 0;
  border-bottom:1px dashed var(--border-color);
  font-size:15px;
}

.hero-info-card ul li:last-child{
  border-bottom:none;
  padding-bottom:0;
}

.hero-info-card ul li strong{
  font-weight:700;
  color:var(--text-main);
  max-width:150px;
  text-align:right;
}

/* ===== 通用区块间距 ===== */
.section-block{
  padding-top:80px;
  padding-bottom:80px;
}

.section-light{
  background:#fff;
}

.section-label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--primary);
  background:var(--primary-light);
  font-size:14px;
  font-weight:600;
  padding:6px 16px;
  border-radius:var(--radius-tag);
  margin-bottom:18px;
}

.section-title{
  font-size:34px;
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:12px;
}

.section-lead{
  font-size:16px;
  line-height:1.9;
  color:var(--text-weak);
  max-width:720px;
  margin-bottom:0;
}

/* ===== 指标条 ===== */
.metric-strip{
  padding:0;
  background:transparent;
}

.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  background:var(--card-bg);
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  padding:22px;
  margin-top:-34px;
  position:relative;
  z-index:5;
  box-shadow:var(--shadow-card);
}

.metric-item{
  border-right:1px solid var(--border-color);
  padding:10px 16px;
}

.metric-item:last-child{
  border-right:none;
}

.metric-item .metric-value{
  font-size:26px;
  font-weight:800;
  color:var(--primary);
  line-height:1.2;
  margin-bottom:6px;
}

.metric-item .metric-label{
  font-size:14px;
  color:var(--text-weak);
}

/* ===== 资讯目录区 ===== */
.directory-list{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  box-shadow:var(--shadow-card);
}

.directory-item{
  display:flex;
  align-items:center;
  gap:20px;
  padding:22px 24px;
  border-bottom:1px solid var(--border-color);
  transition:var(--transition);
}

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

.directory-item:hover{
  background:var(--primary-light);
  box-shadow:none;
}

.directory-item .dir-num{
  width:58px;
  height:58px;
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  background:var(--primary-light);
  color:var(--primary);
  font-size:20px;
  font-weight:800;
  position:relative;
}

.directory-item:first-child .dir-num{
  background:var(--primary);
  color:#fff;
}

.directory-item .dir-content{
  flex:1;
  min-width:0;
}

.directory-item .dir-content h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:5px;
  color:var(--text-main);
}

.directory-item .dir-content p{
  margin:0;
  font-size:15px;
  line-height:1.7;
  color:var(--text-weak);
}

.directory-item .dir-link{
  color:var(--primary);
  font-size:18px;
  width:38px;
  height:38px;
  flex-shrink:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:50%;
  transition:var(--transition);
}

.directory-item:hover .dir-link{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}

/* ===== 近期要点列表 ===== */
.news-slice-header{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  flex-wrap:wrap;
  gap:18px;
  margin-bottom:36px;
}

.list-card{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:var(--transition);
}

.list-item{
  display:flex;
  align-items:center;
  gap:22px;
  padding:24px;
  border-bottom:1px solid var(--border-color);
  transition:background .25s ease;
}

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

.list-item:hover{
  background:#fff;
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-radius:var(--radius-large);
  border-bottom-color:transparent;
}

.item-tag{
  flex-shrink:0;
  background:var(--primary-light);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  padding:5px 14px;
  border-radius:var(--radius-tag);
  min-width:70px;
  text-align:center;
}

.item-tag.event{
  background:rgba(185,122,74,.12);
  color:#8f5f38;
}

.item-tag.trend{
  background:rgba(47,108,143,.1);
  color:var(--primary);
}

.list-item .item-date{
  flex-shrink:0;
  color:var(--text-weak);
  font-size:15px;
  width:66px;
  text-align:right;
}

.list-item .item-content{
  flex:1;
  min-width:0;
}

.list-item .item-content a{
  font-size:18px;
  font-weight:700;
  color:var(--text-main);
  line-height:1.5;
}

.list-item .item-content a:hover{
  color:var(--primary);
}

.list-item .item-content p{
  margin:6px 0 0;
  color:var(--text-weak);
  font-size:15px;
  line-height:1.65;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.item-arrow{
  color:var(--text-weak);
  font-size:16px;
  opacity:.4;
  transition:var(--transition);
}

.list-item:hover .item-arrow{
  opacity:1;
  color:var(--primary);
  transform:translateX(4px);
}

/* ===== 精选条目区 ===== */
.featured-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:24px;
}

.feature-main{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:var(--transition);
  min-height:100%;
}

.feature-main:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.feature-media{
  height:250px;
  overflow:hidden;
  background:var(--primary-light);
}

.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.feature-body{
  padding:24px 24px 28px;
}

.feature-body .feature-label{
  display:inline-block;
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  border:1px solid rgba(185,122,74,.4);
  border-radius:var(--radius-tag);
  padding:5px 14px;
  margin-bottom:15px;
}

.feature-body h3{
  font-size:22px;
  font-weight:800;
  line-height:1.4;
  margin-bottom:10px;
}

.feature-body h3 a{
  color:var(--text-main);
}

.feature-body h3 a:hover{
  color:var(--primary);
}

.feature-body p{
  color:var(--text-weak);
  font-size:15px;
  line-height:1.8;
  margin-bottom:0;
}

.feature-side{
  display:flex;
  flex-direction:column;
  gap:24px;
}

.feature-sm-card{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:var(--transition);
  flex:1;
  display:flex;
}

.feature-sm-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.feature-sm-media{
  width:36%;
  min-height:140px;
  overflow:hidden;
  background:var(--primary-light);
}

.feature-sm-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}

.feature-sm-body{
  width:64%;
  padding:18px 20px;
  display:flex;
  align-items:flex-start;
  flex-direction:column;
  justify-content:center;
}

.feature-sm-body .sm-label{
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  margin-bottom:6px;
}

.feature-sm-body h4{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  margin-bottom:8px;
}

.feature-sm-body h4 a{
  color:var(--text-main);
}

.feature-sm-body h4 a:hover{
  color:var(--primary);
}

/* ===== 阅读路径 ===== */
.path-steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.path-step{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  padding:26px;
  position:relative;
  box-shadow:var(--shadow-card);
  transition:var(--transition);
}

.path-step:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}

.path-step .step-count{
  width:42px;
  height:42px;
  border-radius:var(--radius-btn);
  background:var(--primary-light);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:800;
  margin-bottom:18px;
}

.path-step h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
}

.path-step p{
  color:var(--text-weak);
  font-size:15px;
  line-height:1.8;
  margin:0;
}

/* ===== 推荐栏目 ===== */
.refer-panel{
  background:#fff;
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  padding:38px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
  background-image:linear-gradient(135deg, rgba(223,237,245,.5), rgba(255,255,255,0) 45%);
}

.refer-left .section-title{
  font-size:30px;
  margin-bottom:14px;
}

.refer-left p{
  margin-bottom:30px;
}

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

.refer-item{
  display:flex;
  align-items:center;
  padding:20px 8px;
  border-bottom:1px solid var(--border-color);
  transition:var(--transition);
}

.refer-item:hover{
  background:rgba(223,237,245,.35);
  padding-left:22px;
  border-radius:10px;
}

.refer-item .ref-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  background:var(--primary-light);
  margin-right:18px;
  flex-shrink:0;
}

.refer-item .ref-content{
  flex:1;
}

.refer-item .ref-content h4{
  font-size:18px;
  font-weight:700;
  margin-bottom:4px;
}

.refer-item .ref-content p{
  color:var(--text-weak);
  font-size:15px;
  margin:0;
  line-height:1.65;
}

.refer-item .ref-arrow{
  color:var(--text-weak);
  font-size:16px;
}

.refer-item:hover .ref-arrow{
  color:var(--primary);
  transform:translateX(4px);
}

/* ===== FAQ ===== */
.faq-area{
  background:#fff;
  border-radius:var(--radius-large);
  padding:32px;
  border:1px solid var(--border-color);
}

.faq-heading h2{
  font-size:28px;
  margin-bottom:12px;
}

.faq-accordion .accordion-item{
  border:none;
  border-bottom:1px solid var(--border-color);
  background:transparent;
}

.faq-accordion .accordion-item:last-child{
  border-bottom:none;
}

.faq-accordion .accordion-button{
  background:transparent;
  font-size:17px;
  font-weight:600;
  color:var(--text-main);
  padding:18px 8px;
  border:none;
  line-height:1.6;
  box-shadow:none;
}

.faq-accordion .accordion-button::after{
  background-image:none;
  content:'\f078';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  font-size:14px;
  color:var(--primary);
  width:auto;
  height:auto;
  margin-left:auto;
  transition:var(--transition);
}

.faq-accordion .accordion-button:not(.collapsed){
  background:var(--primary-light);
  border-radius:10px;
}

.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
}

.faq-accordion .accordion-button:focus{
  box-shadow:none;
  outline:2px solid var(--primary);
  outline-offset:-2px;
}

.faq-accordion .accordion-body{
  padding:16px 8px 20px;
  color:var(--text-weak);
  font-size:16px;
  line-height:1.8;
}

/* ===== CTA ===== */
.cta-panel{
  background:var(--primary-light);
  border:1px solid var(--border-color);
  border-radius:var(--radius-large);
  padding:48px;
  text-align:center;
  background-image:radial-gradient(circle at 90% 10%, rgba(255,255,255,.6), transparent 45%);
}

.cta-panel h2{
  font-size:32px;
  font-weight:800;
  color:var(--text-main);
  margin-bottom:12px;
}

.cta-panel p{
  max-width:600px;
  margin:0 auto 28px;
  color:var(--text-main);
  font-size:16px;
  line-height:1.8;
}

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

/* 按钮体系 */
.btn-main{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-content:center;
  height:46px;
  padding:0 28px;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  font-weight:600;
  border:1px solid var(--primary);
  border-radius:var(--radius-btn);
  cursor:pointer;
  transition:var(--transition);
  line-height:1;
}

.btn-main:hover{
  background:var(--primary-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(47,108,143,.25);
}

.btn-main:focus-visible,
.btn-outline:focus-visible,
.btn-save:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
}

.btn-outline{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-content:center;
  height:46px;
  padding:0 28px;
  background:#fff;
  color:var(--primary);
  font-size:16px;
  font-weight:600;
  border:1px solid var(--primary);
  border-radius:var(--radius-btn);
  cursor:pointer;
  transition:var(--transition);
}

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

.btn-save{
  display:inline-flex;
  align-items:center;
  gap:10px;
  justify-content:center;
  height:46px;
  padding:0 28px;
  background:#fff;
  color:var(--accent);
  font-size:16px;
  font-weight:600;
  border:1px solid var(--accent);
  border-radius:var(--radius-btn);
  cursor:pointer;
  transition:var(--transition);
}

.btn-save:hover,
.btn-save.is-saved{
  background:var(--accent);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 18px rgba(185,122,74,.22);
}

/* ===== 页脚 ===== */
.site-footer{
  background:#fff;
  border-top:1px solid var(--border-color);
  padding:64px 0 28px;
  color:var(--text-main);
}

.footer-inner-top{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:40px;
  margin-bottom:42px;
}

.footer-brand{
  max-width:420px;
}

.footer-brand .footer-brand-name{
  font-size:20px;
  font-weight:800;
  color:var(--primary);
  margin-bottom:12px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.footer-brand .footer-brand-name i{
  font-size:18px;
}

.footer-brand p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.8;
  margin:0;
}

.footer-nav ul{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
}

.footer-nav a{
  color:var(--text-main);
  font-size:15px;
  font-weight:500;
  position:relative;
}

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

.footer-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-4px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}

.footer-nav a:hover::after{
  transform:scaleX(1);
}

.footer-bottom{
  border-top:1px solid var(--border-color);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:14px;
  color:var(--text-weak);
}

.footer-corner{
  font-weight:600;
  color:var(--text-main);
}

/* ===== focus 样式 ===== */
:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px){
  .feature-media{
    height:200px;
  }

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

  .metric-item{
    border-right:none;
    border-bottom:1px solid var(--border-color);
  }

  .metric-item:nth-child(3),
  .metric-item:nth-child(4){
    border-bottom:none;
  }
}

@media (max-width: 768px){
  .header-container{
    height:70px;
  }

  .navbar-toggler{
    display:flex;
  }

  .main-nav.collapse{
    display:none;
    position:fixed;
    top:70px;
    left:16px;
    right:16px;
    background:#fff;
    border:1px solid var(--border-color);
    box-shadow:var(--shadow-hover);
    border-radius:var(--radius-large);
    padding:18px;
    z-index:1030;
  }

  .main-nav.collapse.show{
    display:block;
  }

  .main-nav ul{
    flex-direction:column;
    gap:6px;
  }

  .main-nav li{
    width:100%;
  }

  .main-nav li a{
    width:100%;
    justify-content:flex-start;
    padding:14px 18px;
    font-size:17px;
  }

  .main-nav li a.is-active::after{
    left:auto;
    right:18px;
    width:18px;
    bottom:12px;
    height:4px;
    border-radius:var(--radius-tag);
  }

  .brand-text{
    font-size:17px;
  }

  .logo-mark{
    width:36px;
    height:36px;
    font-size:17px;
  }

  .category-hero{
    min-height:300px;
    padding:44px 0 100px;
  }

  .category-hero h1{
    font-size:32px;
  }

  .hero-description{
    font-size:16px;
  }

  .hero-info-card{
    margin-top:28px;
  }

  .section-block{
    padding-top:56px;
    padding-bottom:56px;
  }

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

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

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

  .feature-sm-card{
    flex-direction:column;
  }

  .feature-sm-media{
    width:100%;
    min-height:140px;
    height:150px;
  }

  .feature-sm-body{
    width:100%;
  }

  .refer-panel{
    padding:24px;
  }

  .cta-panel{
    padding:32px 24px;
  }
}

@media (max-width: 576px){
  .container{
    padding-left:18px;
    padding-right:18px;
  }

  .header-container{
    padding:0 16px;
  }

  .hero-meta-tags span{
    font-size:13px;
  }

  .directory-item{
    flex-wrap:wrap;
    gap:14px;
  }

  .directory-item .dir-num{
    width:46px;
    height:46px;
  }

  .list-item{
    flex-wrap:wrap;
    gap:12px;
    padding:20px;
  }

  .item-tag{
    width:auto;
  }

  .list-item .item-date{
    text-align:left;
    width:auto;
  }

  .list-item .item-arrow{
    display:none;
  }

  .metric-grid{
    grid-template-columns:1fr;
    padding:16px;
  }

  .metric-item{
    border:none;
    border-bottom:1px solid var(--border-color);
  }

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

  .cta-actions{
    width:100%;
  }

  .cta-actions a,
  .cta-actions button{
    width:100%;
  }

  .footer-inner-top{
    flex-direction:column;
    gap:28px;
  }

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

  .brand-text{
    font-size:16px;
    white-space:nowrap;
  }
}

@media (max-width: 400px){
  .brand-text{
    font-size:14px;
  }
}

/* roulang page: category2 */
:root{
  --brand:#2F6C8F;
  --brand-dark:#285B7A;
  --brand-light:#DFEDF5;
  --page-bg:#F5FAFC;
  --card-bg:#FFFFFF;
  --line:#DFE9EF;
  --text:#21303C;
  --muted:#5C7180;
  --accent:#B97A4A;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-btn:10px;
  --radius-tag:999px;
  --shadow-card:0 1px 3px rgba(21,42,60,.05),0 8px 24px rgba(21,42,60,.06);
  --shadow-hover:0 4px 12px rgba(21,42,60,.08),0 16px 32px rgba(21,42,60,.10);
  --transition:all .25s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  background:var(--page-bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
p{margin:0 0 1rem}
.container{max-width:1280px;padding-left:24px;padding-right:24px}
.row{--bs-gutter-x:1.5rem}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1045;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(223,233,239,.86);
}
.header-container{
  max-width:1280px;margin:0 auto;padding:0 24px;
  height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.header-logo{
  display:inline-flex;align-items:center;gap:10px;min-width:0;
}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;flex:0 0 auto;
  box-shadow:0 6px 14px rgba(47,108,143,.24);
}
.brand-text{
  font-weight:800;font-size:20px;color:var(--brand);
  white-space:nowrap;letter-spacing:.02em;
}
.navbar-toggler{
  display:none;border:none;background:transparent;padding:8px 6px;
  width:42px;height:42px;border-radius:10px;flex-direction:column;gap:5px;align-items:center;justify-content:center;
}
.navbar-toggler:hover{background:var(--brand-light)}
.toggler-line{display:block;width:20px;height:2px;background:var(--brand);border-radius:4px}
.main-nav ul{display:flex;align-items:center;gap:24px;list-style:none;margin:0;padding:0}
.main-nav ul li{margin:0}
.main-nav ul a{
  display:flex;align-items:center;justify-content:center;
  font-weight:600;font-size:15px;color:var(--text);
  padding:10px 14px;border-radius:8px;position:relative;
  min-height:42px;line-height:1.4;
}
.main-nav ul a i{margin-right:6px}
.main-nav ul a:hover{background:var(--brand-light);color:var(--brand-dark)}
.main-nav ul a.is-active{color:var(--brand);font-weight:700}
.main-nav ul a.is-active::after{
  content:"";
  position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:3px;border-radius:6px;background:var(--brand);
}
@media (max-width:991.98px){
  .header-container{height:64px;padding:0 18px}
  .navbar-toggler{display:flex}
  .brand-text{font-size:17px}
  .main-nav.collapse{display:none}
  .main-nav.collapse.show{display:block;position:fixed;left:16px;right:16px;top:72px;background:#fff;border-radius:16px;box-shadow:var(--shadow-hover);padding:16px;border:1px solid var(--line)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:6px}
  .main-nav ul a{justify-content:flex-start;min-height:48px;font-size:16px;padding-left:16px}
  .main-nav ul a.is-active::after{left:18px;top:50%;right:auto;transform:translateY(-50%);width:3px;height:20px}
}
@media (max-width:575.98px){
  .brand-text{white-space:normal;font-size:15px;line-height:1.2}
  .logo-mark{width:34px;height:34px}
}

/* Footer */
.site-footer{
  background:#fff;border-top:1px solid var(--line);
  padding:56px 0 28px;margin-top:80px;
}
.footer-inner-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:28px}
.footer-brand{max-width:360px}
.footer-brand-name{display:inline-flex;gap:8px;font-weight:800;font-size:20px;color:var(--brand);align-items:center;margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.9;margin:0}
.footer-nav ul{display:flex;gap:10px;flex-wrap:wrap;list-style:none;margin:18px 0 0;padding:0}
.footer-nav a{
  display:inline-block;padding:8px 14px;border-radius:6px;
  font-weight:600;color:#283b48;font-size:15px;
}
.footer-nav a:hover{color:var(--brand);transform:translateY(2px)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:24px;font-size:14px;color:var(--muted);flex-wrap:wrap}
.footer-corner{font-weight:600;color:var(--brand)}
@media (max-width:700px){
  .footer-inner-top{flex-direction:column;gap:16px}
  .site-footer{margin-top:56px}
}

/* shared button */
.btn-main,.btn-main-dark,.btn-line,.btn-fav{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  border:none;cursor:pointer;font-weight:600;font-size:15px;
  transition:var(--transition);
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(47,108,143,.16)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(47,108,143,.25)}
.btn-line{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-line:hover{background:var(--brand-light);transform:translateY(-1px);color:var(--brand-dark)}
.btn-fav{
  background:#fff;border:1px solid #d8ab84;color:var(--accent);
}
.btn-fav:hover{transform:translateY(-1px);background:#faf2ea;color:var(--accent)}
.btn-fav.is-faved{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-blue-light{background:var(--brand-light);border:0;color:var(--brand-dark);font-weight:700}
.btn-blue-light:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn:focus,.btn-main:focus,.btn-line:focus,.btn-fav:focus,button:focus,a:focus{outline:2px solid #7faac8;outline-offset:2px}

/* main page sections */
.wrap{max-width:1280px;margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section-block{padding:96px 0 0}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:700;font-size:14px;letter-spacing:.06em;
  margin-bottom:10px;background:var(--brand-light);padding:6px 12px;border-radius:999px;
}
.section-center-heading{max-width:720px;margin:0 auto 44px;text-align:center}
.section-center-heading h2,
.section-heading h2{
  font-size:34px;line-height:1.3;font-weight:700;color:var(--text);
  margin:0 0 14px;
}
.section-center-heading p,
.section-heading p{color:var(--muted);font-size:17px;margin:0}
@media(max-width:767.98px){
  .section-block{padding:64px 0 0}
  .section-center-heading h2,.section-heading h2{font-size:26px}
  .section-center-heading p,.section-heading p{font-size:15px}
}

/* Hero category */
.hero-cat{
  position:relative;overflow:hidden;
  padding:88px 0 72px;
  background:linear-gradient(90deg,#f5fbff 0%,rgba(245,251,255,.72) 50%,rgba(245,251,255,.32) 100%),url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.hero-cat:before{content:"";position:absolute;width:540px;height:540px;border-radius:50%;right:-120px;top:-180px;background:rgba(47,108,143,.10);z-index:1}
.cat-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);margin-bottom:36px;position:relative;z-index:2}
.cat-breadcrumb a:hover{color:var(--brand)}
.cat-breadcrumb .sep{color:#9ab2c2}
.cat-breadcrumb span.current{color:var(--text);font-weight:600}
.hero-cat .hero-cat-row{display:flex;justify-content:space-between;gap:48px;align-items:center;position:relative;z-index:2}
.hero-cat-left{flex:1 1 58%}
.hero-cat-right{flex:0 0 340px}
.hero-cat-h1{
  font-size:44px;font-weight:800;line-height:1.25;color:var(--text);margin:14px 0 20px;letter-spacing:.01em;
}
.hero-cat-kicker{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  color:var(--brand-dark);border-radius:999px;padding:8px 14px;font-weight:600;font-size:14px;
  box-shadow:var(--shadow-card);
}
.hero-cat-kicker i{color:var(--accent)}
.hero-cat-left p.hero-desc{font-size:17px;color:#3f5362;max-width:660px;line-height:2;margin:0 0 32px}
.hero-cat-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}
.hero-meta-chip{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:10px 14px;box-shadow:var(--shadow-card);
}
.hero-meta-chip i{color:var(--brand);width:17px;height:17px;display:flex;align-items:center;justify-content:center}
.hero-meta-chip span{font-size:13px;color:var(--muted)}
.hero-meta-chip strong{display:block;font-weight:700;color:var(--text);font-size:14px}
.hero-index-card{
  background:rgba(255,255,255,.94);
  border:1px solid rgba(255,255,255,.4);
  border-radius:20px;padding:26px;box-shadow:var(--shadow-hover);
}
.hero-index-card .card-title{font-weight:800;font-size:18px;color:var(--brand);display:flex;gap:8px;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:14px}
.hero-index-card ul{list-style:none;margin:0;padding:0}
.hero-index-card li{display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed #e6eef2;font-size:14px}
.hero-index-card li:last-child{border-bottom:0}
.hero-index-card .label{color:var(--muted);flex:0 0 70px}
.hero-index-card .value{font-weight:600;color:var(--text)}
.hero-index-card .value i{color:var(--accent);margin-right:5px}
.hero-cta-group{display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:991.98px){
  .hero-cat{padding:58px 0 46px}
  .hero-cat-row{flex-direction:column;align-items:flex-start;gap:30px}
  .hero-cat-right{flex:1 1 auto;width:100%}
  .hero-index-card{max-width:560px}
  .hero-cat-h1{font-size:32px}
  .hero-cat-left p.hero-desc{font-size:16px}
}
@media(max-width:575.98px){
  .hero-cat-h1{font-size:28px}
  .hero-cta-group .btn-main,.hero-cta-group .btn-line{padding:0 18px}
  .hero-meta-chip{width:100%}
}

/* section intro text+img */
.intro-sec .intro-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden;height:100%}
.intro-media{width:100%;height:360px;object-fit:cover}
.intro-body{padding:36px}
.intro-body h2{font-size:30px;line-height:1.45;font-weight:700;margin:16px 0 18px}
.intro-badge{color:var(--brand-dark);background:var(--brand-light);border-radius:999px;display:inline-block;padding:5px 14px;font-size:14px;font-weight:700}
.intro-body p{color:var(--muted);font-size:16px}
.check-list{list-style:none;margin:0;padding:0}
.check-list li{position:relative;padding:8px 8px 8px 34px;font-weight:600;color:#2b3e4c;border-bottom:1px dashed #E3EDF2}
.check-list li i{position:absolute;left:0;top:12px;width:22px;height:22px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:12px}
.check-list li:last-child{border-bottom:0}
@media(max-width:991.98px){
  .intro-body{padding:26px}
  .intro-body h2{font-size:24px}
}

/* direction cards */
.dir-section{position:relative}
.dir-grid-box{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;
}
.dir-card{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  padding:32px;position:relative;transition:var(--transition);border:1px solid transparent;
}
.dir-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.dir-card .dir-icon{
  width:52px;height:52px;border-radius:14px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;margin-bottom:22px;
}
.dir-card.focus-card{background:var(--brand);grid-column:span 7}
.dir-card.focus-card .dir-icon{background:rgba(255,255,255,.2);color:#fff}
.dir-card.focus-card h3,.dir-card.focus-card p,.dir-card.focus-card ul{color:#fff}
.dir-card h3{font-size:21px;font-weight:700;margin:0 0 10px}
.dir-card p{color:var(--muted);font-size:15px;line-height:1.9}
.dir-card ul{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px}
.dir-card ul li{display:flex;gap:8px;align-items:flex-start;font-size:15px;color:var(--text)}
.dir-card ul li i{color:var(--accent)}
.dir-card-simple{grid-column:span 5}
.dir-card-simple + .dir-card-simple{grid-column:span 5}
.dir-card .dir-link{margin-top:18px;font-weight:700;font-size:15px;display:inline-flex;color:var(--brand);gap:6px;align-items:center}
.dir-card.side-card:nth-child(2){grid-column:5/span 4!important}
@media(max-width:991.98px){
  .dir-card,.dir-card.focus-card,.dir-card-simple,.dir-card.side-card{grid-column:span 12}
  .dir-card{padding:24px}
}

/* featured combined editorial section */
.feature-section{overflow:hidden}
.feature-big-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
@media(max-width:700px){.feature-big-head{flex-direction:column;align-items:flex-start}}
.feature-grid-card{
  background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);
  transition:var(--transition);height:100%;
}
.feature-grid-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.feature-grid-card .cover-holder{position:relative;overflow:hidden}
.feature-grid-card .cover-holder img{width:100%;height:280px;object-fit:cover;transition:transform .5s ease}
.feature-grid-card:hover img{transform:scale(1.03)}
.feature-grid-card .cover-holder .mini-tag{position:absolute;left:16px;bottom:12px;
  background:var(--accent);color:#fff;font-size:12px;border-radius:99px;padding:4px 12px;font-weight:700;
}
.feature-grid-body{padding:24px}
.feature-grid-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:0 0 10px;color:var(--text)}
.feature-grid-body h3 a:hover{color:var(--brand)}
.feature-grid-body p{color:var(--muted);font-size:15px;margin:0}
.feature-grid-body .feature-more{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);font-size:15px;margin-top:18px;
}
.feature-grid-body .feature-more:hover{gap:10px}
.middle-small-card{display:flex;flex-direction:column}
.middle-small-card .cover-holder img{height:200px}
.middle-small-card.text-card{background:var(--brand-light)}
.middle-small-card.text-card .feature-grid-body{margin-top:auto}
.middle-small-card.text-card h3{color:var(--brand-dark);font-size:18px}
.middle-small-card.text-card p{color:#3d5e74}

/* steps */
.steps-section .stage-shell{
  background:linear-gradient(120deg,#f3f8fb 0%,#e6f0f5 100%);
  border-radius:var(--radius-lg);
  padding:48px 48px 40px;
  position:relative;border:1px solid #d9e7ef;
}
.stages{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:12px}
.stage-item{position:relative;padding-top:20px}
.stage-item:before{content:"";position:absolute;left:0;right:0;height:2px;background:linear-gradient(90deg,#b8cede,#d9e8ef);top:0;border-radius:4px}
.stage-num{width:36px;height:36px;background:var(--brand);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;position:relative;top:-8px;margin-bottom:10px;box-shadow:0 6px 12px rgba(47,108,143,.2)}
.stage-item h3{font-size:17px;font-weight:700;color:var(--text);margin:0 0 6px}
.stage-item p{font-size:14px;color:var(--muted);margin:0}
@media(max-width:991px){.stages{grid-template-columns:repeat(2,1fr)}}
@media(max-width:575px){.stages{grid-template-columns:1fr}.stage-shell{padding:28px 22px}}
@media(max-width:700px){.stage-shell{padding:30px 24px}}

/* FAQ */
.faq-section{padding:96px 0 0}
.faq-layout{display:grid;grid-template-columns:0.85fr 1.4fr;gap:56px;align-items:start}
.faq-right h2{font-size:32px;line-height:1.3;margin:12px 0 20px;font-weight:700}
.faq-right p.intro{color:var(--muted);margin-bottom:28px;font-size:16px}
.faq-list .faq-item{background:#fff;border:0;border-radius:0;border-top:1px solid var(--line);margin:0}
.faq-list .faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item .accordion-button{
  background:transparent;box-shadow:none;color:var(--text);
  font-size:16px;font-weight:700;padding:20px 48px 20px 0;
  border:0;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand-dark);background:transparent}
.faq-item .accordion-button::after{background:none;content:"";width:10px;height:10px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg) ;position:absolute;right:20px;transition:var(--transition)}
.faq-item .accordion-button:not(.collapsed)::after{transform:rotate(225deg)}
.faq-list .accordion-body{padding:0 24px 24px 0;color:var(--muted);font-size:15px;background:transparent}
.faq-help-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:28px;margin-top:28px}
.faq-help-card h4{font-weight:800;color:var(--text);font-size:18px;display:flex;gap:10px;align-items:center;margin:0 0 10px}
.faq-help-card h4 i{color:var(--accent)}
.faq-help-card p{color:var(--muted);font-size:15px;margin-bottom:0}
@media(max-width:991px){
  .faq-layout{grid-template-columns:1fr;gap:36px}
  .faq-right h2{font-size:26px}
}

/* horizontal nav cards to other category */
.topic-nav-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
@media(max-width:767px){.topic-nav-cards{grid-template-columns:1fr}}
.topic-link-card{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  padding:32px 30px;display:flex;gap:24px;align-items:center;justify-content:space-between;
  border:1px solid transparent;transition:var(--transition);
}
.topic-link-card:hover{border-color:#bcd2df;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.topic-link-card .icon-circle{width:56px;height:56px;border-radius:18px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:24px;flex:0 0 auto}
.topic-link-card .ic-right{font-size:20px;color:var(--brand)}
.topic-link-card h3{font-size:21px;font-weight:700;margin:0 0 6px}
.topic-link-card p{margin:0;color:var(--muted);font-size:15px}
@media(max-width:500px){.topic-link-card{flex-direction:column;text-align:left;align-items:flex-start}}
@media(max-width:991px){
  .wrap{padding-left:18px;padding-right:18px}
  .header-container{padding-left:18px;padding-right:18px}
}

/* bookmark CTA */
.pick-cta{padding:96px 0 0}
.pick-card{
  background:linear-gradient(135deg,#fff 0%,#f1f6f9 100%);
  border-radius:var(--radius-lg);border:1px solid #d5e5ec;
  padding:44px 48px;display:flex;justify-content:space-between;gap:40px;align-items:center;
  box-shadow:var(--shadow-card);
}
.pick-card .pick-title{font-size:26px;font-weight:800;line-height:1.45;margin:0 0 12px}
.pick-card .pick-title small{display:block;font-size:14px;color:var(--muted);font-weight:500;line-height:1.8;margin-top:10px}
@media(max-width:900px){
  .pick-card{flex-direction:column;padding:26px;text-align:left;align-items:flex-start}
  .pick-title{font-size:22px}
}
.copy-tip{
  position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(10px);
  background:#283b48;color:#fff;padding:10px 22px;border-radius:999px;font-size:14px;z-index:9999;
  opacity:0;visibility:hidden;transition:var(--transition);box-shadow:0 14px 32px rgba(0,0,0,.18);
}
.copy-tip.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* roulang page: category3 */
:root {
  --primary: #2F6C8F;
  --primary-dark: #285B7A;
  --primary-light: #DFEDF5;
  --page-bg: #F5FAFC;
  --card-bg: #FFFFFF;
  --line: #DFE9EF;
  --text-color: #21303C;
  --muted-color: #5C7180;
  --accent: #B97A4A;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 3px rgba(21,42,60,0.05), 0 8px 24px rgba(21,42,60,0.06);
  --shadow-hover: 0 4px 12px rgba(21,42,60,0.08), 0 16px 32px rgba(21,42,60,0.10);
  --transition: all .25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  background: var(--page-bg);
  color: var(--text-color);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ---------- 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  height: 78px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.logo-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.brand-text {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.main-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav ul li a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 46px;
  padding: 0 18px;
  font-size: 16px;
  font-weight: 600;
  color: #3D5261;
  border-radius: 10px;
}

.main-nav ul li a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.main-nav ul li a.is-active {
  color: var(--primary);
}

.main-nav ul li a.is-active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 2px;
  height: 4px;
  border-radius: 999px;
  background: var(--primary);
}

.main-nav li a:focus-visible {
  outline: 3px solid rgba(47, 108, 143, 0.35);
  outline-offset: 2px;
}

.navbar-toggler {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  box-shadow: none;
  outline: none;
  padding: 0;
}

.navbar-toggler:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(47, 108, 143, 0.18);
}

.toggler-line {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-color);
  display: block;
}

.navbar-toggler[aria-expanded="true"] .toggler-line:first-child {
  transform: translateY(7px) rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .toggler-line:nth-child(2) {
  opacity: 0;
}

.navbar-toggler[aria-expanded="true"] .toggler-line:last-child {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 991.98px) {
  .header-container {
    position: relative;
  }

  .navbar-toggler {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 12px;
    right: 12px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 14px 44px rgba(21,42,60,0.14);
    padding: 14px;
    border: 1px solid rgba(223,233,239,0.9);
  }

  .main-nav.collapse {
    display: none;
  }

  .main-nav.collapse.show {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .main-nav ul li a {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 17px;
  }

  .main-nav ul li a.is-active::after {
    left: auto;
    right: 18px;
    width: 22px;
    height: 5px;
  }
}

/* ---------- 通用按钮 ---------- */
.btn-main,
.btn-outline,
.btn-accent,
.copy-btn,
.fav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 46px;
  padding: 0 24px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all .25s ease;
}

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

.btn-main:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(47, 108, 143, 0.25);
  color: #fff;
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: #bcd3e1;
  box-shadow: 0 1px 3px rgba(21,42,60,0.04);
}

.btn-outline:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(47, 108, 143, 0.12);
}

.btn-accent {
  background: #fff;
  color: var(--accent);
  border-color: #dcb992;
}

.btn-accent:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(185,122,74,0.2);
}

.btn-accent.is-saved {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(47, 108, 143, 0.3);
  outline-offset: 2px;
}

/* ---------- 分类页首屏 ---------- */
.category-wrap {
  padding-top: 28px;
}

.category-hero {
  min-height: 370px;
  border-radius: 28px;
  background: linear-gradient(102deg, rgba(245, 250, 252, 0.98) 0%, rgba(245, 250, 252, 0.92) 38%, rgba(245, 250, 252, 0.72) 62%, rgba(245, 250, 252, 0.55) 100%), url('/assets/images/backpic/back-3.webp') no-repeat right center / cover;
  background-color: var(--primary-light);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: insét 0 1px 0 rgba(255,255,255,0.85), var(--shadow);
}

.hero-inner {
  max-width: 740px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.breadcrumb-nav {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted-color);
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(223,233,239,0.9);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}

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

.breadcrumb-nav i {
  font-size: 12px;
  color: #9FADB7;
}

.category-hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.22;
  margin: 0 0 18px;
  color: var(--text-color);
  letter-spacing: 0.01em;
}

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

.hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: #3A5568;
  margin-bottom: 28px;
  max-width: 660px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-note {
  position: absolute;
  right: 40px;
  bottom: 36px;
  width: 240px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(223,233,239,0.75);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: 0 8px 22px rgba(21,42,60,0.06);
}

.hero-note strong {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--primary);
  margin-bottom: 8px;
}

.hero-note strong i {
  color: var(--accent);
}

.hero-note p {
  font-size: 14px;
  line-height: 1.8;
  color: #536A79;
  margin: 0;
}

/* ---------- 区块通用 ---------- */
.section-block {
  padding: 88px 0;
}

.section-white {
  background: #FFFFFF;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.section-tag i {
  font-size: 13px;
}

.section-heading h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-color);
  margin: 0;
}

.section-heading .heading-desc {
  max-width: 460px;
  color: var(--muted-color);
  font-size: 16px;
  line-height: 1.8;
  margin: 0;
}

/* ---------- 目录列表 ---------- */
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.catalog-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 26px;
  box-shadow: 0 1px 2px rgba(21,42,60,0.03);
  transition: all .3s ease;
}

.catalog-item:hover {
  transform: translateY(-4px);
  border-color: #c7dbe6;
  box-shadow: var(--shadow-hover);
}

.catalog-item:hover .catalog-title {
  color: var(--primary);
}

.catalog-index {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 800;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.catalog-main {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.catalog-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-color);
  transition: color .25s;
}

.catalog-desc {
  color: var(--muted-color);
  font-size: 15px;
  line-height: 1.7;
}

.catalog-meta {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 13px;
  background: #EFF4F8;
  color: #587889;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  white-space: nowrap;
  line-height: 1.4;
}

.catalog-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #F0F5F8;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .25s;
}

.catalog-item:hover .catalog-arrow {
  background: var(--primary);
  color: #fff;
}

/* ---------- 精选内容 ---------- */
.feature-card {
  display: flex;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: all .35s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-media {
  flex: 0 0 50%;
  position: relative;
  min-height: 220px;
  overflow: hidden;
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.feature-main {
  height: 100%;
  min-height: 340px;
}

.feature-main .feature-media {
  flex: 0 0 48%;
}

.feature-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
}

.feature-body .tag-badge {
  background: #f5e5d8;
  color: #a46432;
}

.feature-body h3 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-color);
  margin: 0;
}

.feature-body p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted-color);
  margin: 0;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-weight: 700;
  color: var(--primary);
}

.link-more i {
  transition: transform .25s;
}

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

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

.feature-sub-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  height: 100%;
}

.feature-card.feature-sub {
  flex: 1 1 0;
  min-height: 0;
}

.feature-sub .feature-media {
  flex: 0 0 40%;
  min-height: 150px;
}

.feature-sub .feature-body {
  padding: 20px 22px;
}

.feature-sub h3 {
  font-size: 18px;
  font-weight: 700;
}

.feature-sub p {
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 注意事项说明 ---------- */
.notice-band {
  background: var(--primary-light);
  border-radius: 16px;
  padding: 18px 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-left: 4px solid var(--primary);
}

.notice-band p {
  margin: 0;
  color: #406477;
  font-size: 15px;
}

.notice-band strong {
  color: var(--primary);
}

/* ---------- FAQ ---------- */
.faq-row {
  row-gap: 32px;
}

.faq-intro {
  padding-right: 28px;
}

.faq-intro h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 16px;
}

.faq-intro p {
  color: var(--muted-color);
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 24px;
}

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

.faq-item {
  border-bottom: 1px solid var(--line);
  transition: background .3s ease;
}

.faq-item:has(.collapsing),
.faq-item:has(.show) {
  background: var(--primary-light);
}

.faq-question {
  width: 100%;
  background: none;
  border: 0;
  padding: 22px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-color);
  text-align: left;
  cursor: pointer;
  transition: color .25s;
}

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

.faq-question i {
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--primary);
  transition: transform .3s ease, background .3s ease;
}

.faq-question[aria-expanded="true"] i {
  transform: rotate(180deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.faq-answer {
  padding: 0 12px 24px 18px;
  color: #4A6272;
  font-size: 16px;
  line-height: 1.9;
}

/* ---------- 相关推荐 ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 30px;
  box-shadow: var(--shadow);
  transition: all .3s ease;
  gap: 24px;
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: #c2d7e3;
}

.related-icon {
  flex: 0 0 54px;
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
}

.related-card .body {
  flex: 1 1 auto;
}

.related-card h3 {
  font-size: 20px;
  margin: 0 0 6px;
  font-weight: 700;
}

.related-card p {
  margin: 0;
  font-size: 15px;
  color: var(--muted-color);
}

.related-card .arrow {
  color: var(--primary);
  font-size: 18px;
  flex: 0 0 auto;
}

/* ---------- CTA ---------- */
.cta-panel {
  background: var(--primary-light);
  border-radius: 28px;
  padding: 56px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  position: relative;
  overflow: hidden;
}

.cta-panel::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -70px;
  top: -90px;
  background: rgba(255, 255, 255, 0.38);
  border-radius: 50%;
}

.cta-text h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-color);
  margin: 0 0 12px;
}

.cta-text p {
  margin: 0;
  color: #4A6474;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.8;
}

.cta-actions {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding-top: 56px;
}

.footer-inner-top {
  display: flex;
  justify-content: space-between;
  gap: 36px;
}

.footer-brand {
  max-width: 420px;
}

.footer-brand-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted-color);
  margin: 0;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  align-items: center;
  margin: 0;
  padding: 0;
}

.footer-nav a {
  font-size: 15px;
  color: var(--muted-color);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

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

.footer-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width .25s ease;
}

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

.footer-bottom {
  border-top: 1px solid var(--line);
  margin-top: 44px;
  padding: 20px 0 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: #8EA2AF;
  font-size: 14px;
}

.footer-corner {
  color: var(--primary);
  font-weight: 600;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1199.98px) {
  .feature-card.feature-main {
    flex-direction: column;
  }

  .feature-main .feature-media,
  .feature-main .feature-media {
    flex: 0 0 240px;
    width: 100%;
    min-height: 240px;
  }

  .feature-media img {
    position: static;
    height: 240px;
  }

  .feature-card.feature-sub {
    flex-direction: row;
  }
}

@media (max-width: 991.98px) {
  .section-block {
    padding: 60px 0;
  }

  .section-heading h2 {
    font-size: 28px;
  }

  .category-hero {
    min-height: 440px;
    padding: 36px;
  }

  .hero-desc {
    max-width: 100%;
  }

  .hero-note {
    position: static;
    width: 100%;
    max-width: 440px;
    margin-top: 8px;
  }

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

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
    padding: 40px;
  }

  .cta-actions {
    flex-wrap: wrap;
  }

  .feature-card.feature-main {
    flex-direction: row;
    min-height: 300px;
  }

  .feature-main .feature-media {
    flex: 0 0 50%;
  }

  .feature-main .feature-media img {
    position: absolute;
    height: 100%;
  }
}

@media (max-width: 767.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header .header-container {
    padding: 0 16px;
  }

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

  .section-block {
    padding: 48px 0;
  }

  .category-hero {
    padding: 24px;
    border-radius: 20px;
    min-height: 520px;
  }

  .category-hero h1 {
    font-size: 30px;
    margin-bottom: 14px;
  }

  .hero-desc {
    font-size: 16px;
    line-height: 1.8;
  }

  .hero-note {
    margin-top: 22px;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 30px;
  }

  .section-heading h2 {
    font-size: 25px;
  }

  .catalog-item {
    flex-wrap: wrap;
    gap: 14px;
    padding: 18px 16px;
  }

  .catalog-index {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
    font-size: 14px;
    border-radius: 10px;
  }

  .catalog-main {
    flex: 1 0 calc(100% - 64px);
  }

  .catalog-meta {
    width: 100%;
    justify-content: flex-end;
    border-top: 1px dashed var(--line);
    padding-top: 10px;
  }

  .feature-card,
  .feature-card.feature-main,
  .feature-card.feature-sub {
    flex-direction: column;
  }

  .feature-card .feature-media,
  .feature-main .feature-media,
  .feature-sub .feature-media {
    flex: none;
    width: 100%;
    min-height: 180px;
  }

  .feature-card .feature-media img,
  .feature-main .feature-media img,
  .feature-sub .feature-media img {
    position: static;
    height: 180px;
    object-fit: cover;
  }

  .feature-card.feature-sub {
    min-height: 320px;
  }

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

  .cta-panel {
    padding: 28px 24px;
    border-radius: 20px;
  }

  .cta-text h2 {
    font-size: 24px;
  }

  .footer-inner-top {
    flex-direction: column;
    gap: 28px;
  }

  .footer-nav ul {
    flex-wrap: wrap;
    gap: 18px;
  }

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

@media (max-width: 575.98px) {
  .brand-text {
    font-size: 17px;
    letter-spacing: 0;
  }

  .main-nav {
    left: 10px;
    right: 10px;
  }

  .btn-main,
  .btn-outline,
  .btn-accent,
  .copy-btn,
  .fav-btn {
    height: 44px;
    font-size: 15px;
    padding: 0 18px;
  }

  .category-hero h1 {
    font-size: 27px;
  }

  .category-hero {
    min-height: 560px;
  }

  .section-white {
    background: #fff;
  }

  .hero-note p {
    font-size: 14px;
  }

  .breadcrumb-nav {
    font-size: 13px;
    padding: 5px 10px;
  }

  .section-heading h2,
  .faq-intro h2 {
    font-size: 23px;
  }

  .feature-card .feature-media,
  .feature-main .feature-media,
  .feature-sub .feature-media {
    min-height: 170px;
  }

  .feature-card .feature-media img,
  .feature-main .feature-media img,
  .feature-sub .feature-media img {
    height: 170px;
  }

  .feature-body h3 {
    font-size: 20px;
  }
}

@media (max-width: 380px) {
  .brand-text {
    font-size: 15px;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

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